Jiaozuo brake

Recently, white iron pillars up to 100 meters tall were erected in the plain area of Xiajin Dukouyi Township, marking the first wind power project in the Shandong Plain region. In February this year, the Runqing Wind Power Plant project with a total investment of 2.35 billion yuan was started in Qingfeng County, Henan Province, which is the first wind power project in the plain area of Henan Province. After capturing coastal, mountainous, and plateau areas, wind turbines began to enter the plains."The reason why we entered the plain area is that Xinjiang and other places are almost built," Hou Chunlei, deputy manager of the Dezhou Runjin Xiajin 100MW Wind Farm Project of Beijing Tianrun New Energy East China Branch, told the Qilu Evening News. Beijing Tianrun Xinneng Investment Co., Ltd. is a joint investment and construction party for the Qingfeng project in Henan and the Xiajin Ferry Station project.1496710821448520.jpgMeng Tao, the head of Dukouyi Township, said, "As early as 2012, Tianrun Xinneng began to inspect the wind conditions in Xiajin and built an 80 meter high wind tower for monitoring. Xiajin has a canal embankment, forming a wind outlet. Tianrun Xinneng has continuously measured wind data in Xiajin for three years and applied for more than 20 years of Xiajin wind data. Finally, it decided to carry out construction in Xiajin Dukouyi, Another reason why Tianrun New can choose Xiajin is that Xiajin has no industrial pollution and good air quality.

time：2021-04-08

Detailed contentClassification of electromagnetic brakesBrake is a Machine element that stops or decelerates moving parts in machinery, commonly known as brake, brake. It mainly consists of a brake frame, brake components, and control devices. Some brakes are also equipped with automatic adjustment devices for brake component clearances. In order to reduce braking torque and structural dimensions, brakes are usually installed on the high-speed shaft of equipment, but for large equipment with high safety requirements, such as mine hoists, elevators, etc., they are installed on the low-speed shaft near the working part of the equipment. The brakes have been standardized and serialized, and are manufactured by professional factories for selection. Electromagnetic brake is an ideal automatic execution component in modern industry, which mainly plays a role in transmitting power and controlling motion in mechanical transmission systems. It has the advantages of compact structure, simple operation, sensitive response, long service life, reliable use, and easy to achieve remote control.The electromagnetic brake is mainly matched with the series of motors. Widely used in metallurgy, construction, chemical, food, machine tools, stages, elevators, ships, packaging and other machinery, as well as in situations such as emergency braking during power outages. The resistance torque that must be applied to stop or decelerate the mechanical operating components is called the braking torque. The braking torque is the basis for designing and selecting brakes, and its size is determined by the mechanical type and working requirements. The performance of the friction materials (brake components) used on the brake directly affects the braking process, and the main factors affecting its performance are the working temperature and temperature rise rate. Friction materials should have high and stable friction coefficients and good wear resistance. Friction materials are divided into two categories: metallic and non-metallic. The former commonly used include cast iron, steel, bronze, and powder metallurgy friction materials, while the latter includes leather, rubber, wood, asbestos, and non asbestos.The brake that uses electromagnetic effect to realize braking can be divided into electromagnetic powder brake, electromagnetic eddy current brake, electromagnetic friction brake and other forms1、 Electromagnetic powder brake: When the excitation coil is energized, a magnetic field is formed, and the magnetic powder is magnetized under the action of the magnetic field, forming a magnetic powder chain, which aggregates between the fixed magnetic conductor and the rotor. Braking is achieved by the binding force and friction force of the magnetic powder. When the excitation current disappears, the magnetic powder is in a free and loose state, and the braking effect is relieved. This type of brake has small volume, light weight, low excitation power, and the braking torque is independent of the rotational speed of the rotating parts. However, magnetic particles can cause component wear. It is convenient for automatic control and suitable for driving systems of various machines.2、 Electromagnetic eddy current brake: magnetic field is formed when exciting coil is energized. The armature on the brake shaft rotates and cuts the magnetic field lines, generating eddy currents. The interaction between eddy currents and magnetic fields in the armature forms a braking torque. The electromagnetic eddy current brake is durable, easy to maintain, and has a wide speed range; But at low speeds, the efficiency is low and the temperature rises, so heat dissipation measures must be taken. This type of brake is commonly used in machinery with vertical loads.3、 Electromagnetic friction brake: The excitation coil is energized to generate a magnetic field, and the armature is attracted by the magnetic yoke. The armature is braked through the connecting piece.In addition, it is further divided into dry single disc electromagnetic brakes, dry multi disc electromagnetic brakes, wet multi disc electromagnetic brakes, etc.It can also be divided into power on braking and power off braking based on the braking method.

time：2021-04-08

Copy of 5bfe816aa43efWhen installing and using electromagnetic clutches and brakes, the following precautions should be taken:1. The materials used for electromagnetic clutches and brakes are soft materials. During installation, attention should be paid to falling, collision, or excessive force to avoid deformation of the product and affecting its use.2. The friction surfaces of the clutch and brake should not have dirt such as oil or dust. Please clean them with acetone or alcohol during installation, otherwise it will affect the torque and the service life of the product.3. When installing the electromagnetic clutch and brake, ensure the coaxiality of the magnetic yoke and rotor, as well as the verticality of the shaft, and ensure the value of the clearance a between the two friction pairs and the air gap between the rotor and the magnetic yoke.4. The outgoing lines of the clutch and brake are directly led out from the magnetic yoke. Please do not pull too tightly, do not use force to pull or bend to avoid damage.5. When installing the combination clutch, please do not use a hammer to drive the sprocket, coupling, or pulley at the input and output ends.6. When pressing in the rotor and moving disc of the electromagnetic clutch and electromagnetic brake, add a sleeve at the orifice for protection, and do not use a hammer to directly drive in.

time：2021-04-08

Maintenance and common faults of electromagnetic clutchDetailed contentIn order to ensure the uninterrupted operation of the electromagnetic clutch, it is necessary to regularly maintain and maintain it:1. Regularly check the tightness of the bolts, especially tightening the bolts of the electromagnet, the bolts of the electromagnet and the shell, the bolts of the magnetic yoke, the bolts of the electromagnet coil, and the wiring bolts.2. Frequently add lubricant to the movable part of the electromagnetic clutch.3. Regularly inspect the mechanical wear of movable components and remove dust, burrs, and dirt from the surface of electromagnetic components.4. Regularly check the length of the armature stroke. Because during the operation of the clutch, the travel length of the armature will increase due to wear on the moving surface. When the length of the armature stroke cannot reach the normal value, adjustments must be made to restore the small gap between the brake surface and the rotary table. If the stroke length of the armature increases above the normal value, it may greatly reduce the suction force.5. If the worn brake surface is replaced, the small gap between the brake surface and the rotary table should be adjusted appropriately.During use, electromagnetic clutches may experience different malfunctions due to various factors. Electromagnetic clutch faults generally occur during startup, idling, and load, but they occur more frequently during startup, mainly manifested as inability to start or low input voltage to the electromagnetic clutch. The conventional input voltage is DC24V. And unstable power, slipping or high temperature, but there are also special situations.So pay attention to the requirements when inputting voltage, and the elimination method is to check whether the input voltage is the required voltage for the electromagnetic clutch. The coil is short circuited, and when encountering this fault, it is usually replaced or repaired. It is recommended to modify the replaced or modified electromagnetic clutch circuit.The operation is unstable, most likely due to unstable input voltage. The power of the detection power supply is about 1.5 times greater than the rated power of the electromagnetic clutch, and the voltage fluctuation is within the range of+-5%. The solution to unstable operation is to check the voltage condition and stabilize the voltage. Another situation is friction heating, which causes the coil to burn out or short-circuit due to heating.

time：2021-04-07

With the continuous strengthening of China's safety standards, the brake system of passenger and commercial vehicles has begun to transition to the disc brake. Brake | electromagnetic brake | hydraulic brake. At the same time, ABS has also begun to be popularized from medium passenger vehicles to economical passenger vehicles and commercial vehicles. In addition, with the transfer of foreign manufacturers to China's production and the progress in R&D of ethnic manufacturers, the mass production system construction of more technically advanced air disc brakes and abs has also continued to move forward. In 2007, the production scale of automobile brakes increased by 24% year on year to 28.04 million units, of which the production ratio of disc brakes increased from 3.2% in 1998 to 41.8% in 2007. In 2007, the cumulative production of ABS from six statistical subjects reached 1.13 million units. Brake development, as a consumer Factor of safety, is closely related to the development of auto parts in the future. 1、 The component of the metal disc in the automobile disc brake that rotates with the end face as the friction amplitude is called the brake disc. The friction amplitude working surface on its fixed bracket is composed of 2-4 small friction plates and a brake block composed of their metal base plate. These brake pads and their tensioning devices are installed in clamping clamp shaped brackets spanning both sides of the brake disc, called brake calipers. This brake composed of brake disc and brake caliper is also called caliper disc brake (also called disc brake, as the name implies, it is named after its shape). Disc brakes have been widely used in cars at all levels, Kei car trucks, luxury buses and heavy trucks.QP30 Single Real ImageOur disc brakes are widely used in lifting, metallurgy, mining, port Main products in construction and other machinery include: electric hydraulic block brake series YWZB YWZ3B YWZ4B YWZ5 YWZ8 YWZ9 YWZ12 YWZ13 YW YWL TYWZ2 YWP electromagnetic block brake JZ (TJ2A) MW (Z) ZWZA ZWZ2 ZWZ3A DCW3 electromagnetic failure protection disc brake 5SE 561SE 560SE 56SE DCPZ12.7 4SE 3SE ST1SE ST2SE 450SE hydraulic failure protection disc brake 5SH 4SH 3SH 450SH ST1SH ST2SH SH ST3SH ST4SH SB (YQP) SBDST5SH ST10SH ST16SH ST25SH ST25SH-A ST40SH 904SH SBB electric hydraulic arm disk brake YPZ2 Ⅰ, Ⅱ, Ⅲ YPZ2 Ⅳ, Ⅴ, Ⅵ pneumatic caliper disk brake QP12.7 5SP 4SP 3SP 450SP PD ADP60M-ADP61M-ADP62M hydraulic direct acting disk brake DADH75 ADH60 ADH90 ADH120 DADH80 DADH90 DADH120 DADH103 DADH195 electric hydraulic thruster YT1 Ed explosion-proof electric hydraulic thruster BYT1 BEDA brake refers to a component that generates braking torque and is used to impede the movement or trend of a vehicle. At present, friction brakes are commonly used in automobiles, which generate braking torque by friction between fixed and rotating components on the working surface.According to the installation position, the disc brake can be divided into wheel brake and central brake. The brake with rotating components fixed on the wheel or half axle is called a wheel brake; The brake with rotating components fixed on the transmission shaft of the transmission system is called a central brake. Wheel brakes are generally used for service braking, as well as for emergency braking and parking braking; The central brake is generally only used for parking and slow braking.

time：2021-04-07

Brake electric hydraulic thrusters for petroleum drilling equipmentThe disc brake pusher for oil drilling and workover equipment is a new type of braking device that has emerged in recent years. The article comprehensively compares the performance of disc brakes with that of band brakes from various aspects such as working principle, structure, operation, and use, and concludes that the performance of disc brakes is significantly better than that of band brakes. Introduced the structural characteristics, structural principles, and characteristics of disc brakes. The limitations of the drilling rig winch with brake system are elaborated, including the characteristics and working principle of the disc brake system, the structure of the brake disc and brake caliper, as well as the calculation methods of brake torque, thermal load, etc. Several views are proposed on the development prospects of the disc brake systemWidely used in lifting, metallurgy, mining, ports Main products in construction and other machinery include: electric hydraulic block brake series YWZB YWZ3B YWZ4B YWZ5 YWZ8 YWZ9 YWZ12 YWZ13 YW YWL TYWZ2 YWP electromagnetic block brake JZ (TJ2A) MW (Z) ZWZA ZWZ2 ZWZ3A DCW3 electromagnetic failure protection disc brake 5SE 561SE 560SE 56SE DCPZ12.7 4SE 3SE ST1SE ST2SE 450SE hydraulic failure protection disc brake 5SH 4SH 3SH 450SH ST1SH ST2SH SH ST3SH ST4SH SB (YQP) SBDST5SH ST10SH ST16SH ST25SH ST25SH-A ST40SH 904SH SBB electric hydraulic arm disc brake YPZ2 Ⅰ, Ⅱ, Ⅲ YPZ2 Ⅳ, Ⅴ, Ⅵ pneumatic caliper disc brake QP12.7 5SP 4SP 3SP 450SP PD ADP60M-ADP61M-ADP62M hydraulic direct acting disc brake DADH75 ADH60 ADH90 ADH120 DADH80 DADH90 DADH120 DADH103 DADH195 electric hydraulic thruster YT1 Ed explosion-proof electric hydraulic thruster BYT1 BEDywz9 new workshop picturesThe advantages of disc brake include large braking torque capacity, stable braking performance, good heat resistance and fading performance, sensitive operation, convenient maintenance and adjustment, easy remote control and automatic operation, and suitable for serialized and industrialized production. Analyzed the significant economic and social benefits that can be achieved by replacing band brakes with disc brakes. Several suggestions were put forward for promoting disc brakes on deep and deeper drilling rigs. The winch is the main component of a workover rig, which is a lifting equipment that uses a drum to wind steel wire ropes to lift or lower heavy objects. It bears the lifting and lowering work of the load during workover operations. The safety performance of workover rigs directly affects the progress of oil extraction, and the safety braking of the winch has become particularly prominent. Due to the traditional use of belt brake for the winch braking of workover rigs, it occupies a large space, is complex to operate, and is frequently replaced, which increases the burden on the driver during the workover operation and reduces production efficiency

time：2021-04-07

Advantages and disadvantages of electric hydraulic drum brake block brake:The advantages and disadvantages of several drum brake block brakes introduced below can be analyzed and compared as follows.(1) Firstly, in terms of braking efficiency, under the condition of basically the same structural parameters, the automatic booster brake is fully utilized due to its increasing effect on friction force, followed by the balanced brake with high braking efficiency and the non balanced brake with low braking efficiency. However, on the other hand, due to the unstable friction coefficient between the brake shoe and brake drum itself, It varies greatly depending on the material properties, temperature, and surface conditions of the brake drum and friction pad (such as whether they are contaminated with water, oil, etc.). The braking efficiency of an automatic booster brake is sensitive to the friction coefficient and is therefore very unstable.(2) Block brakes and drum brakes utilize friction to varying degrees to ensure certain braking efficiency. However, in use, the stability of braking efficiency is poor due to the unstable friction coefficient.(3) When the block brake drum brake is working, most of the heat generated by friction is transferred to the brake drum to raise its temperature. In order to reduce the temperature rise, the brake drum should have a large Heat capacity.Drum brake:(1) Simple Unbalanced Brake: This is a common type of hydraulic wheel brake. In this type of brake, the auxiliary shoes rely on frictional force, resulting in much greater pressure on the brake drum than the reducing shoes. To ensure uniform wear of the two shoes, the auxiliary shoes are made longer than the reducing shoes, so that the opening force acting on the shoes is equal, but the frictional torque generated is equal, thus achieving uniform wear.(2) Balanced brake: Balanced brake has two types: unidirectional and bidirectional assistance. The unidirectional assistance balanced brake has an automatic assistance effect when each shoe is hard pressed against the brake drum, but it will become a reducing shoe when reversing, resulting in poor braking effect. Due to its large unidirectional braking torque, it is called a unidirectional balanced brake. The two front and rear brake cylinders of the two-way balance brake drive the two floating brake shoes. When braking forward, all the piston of the cylinder moves outward under the hydraulic pressure to press the two shoes against the brake drum. Under the Friction torque of the brake drum, both shoes rotate in the direction of wheel rotation until the support at the outer end of the piston of the two cylinder is pushed back to the end face of the cylinder. This brake has good contact and uniform wear, The braking efficiency is high, and most of them are used by Hyundai Motor Company.Application:Electric hydraulic drum brakes are widely used for deceleration and parking (maintenance) braking in various lifting and transportation, port loading and unloading, metallurgical equipment, mining machinery, and engineering machinery.Compliant with standardsThe connection dimensions and technical requirements of the YW series electric hydraulic drum brake comply with JB/T6406-2006 standard, the braking torque parameters comply with DIN15435 standard, and are equipped with ED thrusters that comply with DIN15430 standard;main features 1. Safe and reliable performance, smooth braking, and high action frequency;2. The main hinge points are equipped with self-lubricating bearings, which have high transmission efficiency and long service life, and do not require lubrication during use;3. The interlocking equal back distance device and automatic tile following device can always maintain equal back distance of both sides of the tiles without adjustment, completely avoiding the phenomenon of one side of the brake pad floating against the brake wheel due to uneven back distance;Two types of diagrams, YWZ4 and YWZDrum brake:(1) Simple Unbalanced Brake: This is a common type of hydraulic wheel brake. In this type of brake, the auxiliary shoes rely on frictional force, resulting in much greater pressure on the brake drum than the reducing shoes. To ensure uniform wear of the two shoes, the auxiliary shoes are made longer than the reducing shoes, so that the opening force acting on the shoes is equal, but the frictional torque generated is equal, thus achieving uniform wear.(2) Balanced brake: There are two types of balanced block brakes: unidirectional and bidirectional. The unidirectional balanced brake has an automatic braking effect when each shoe is hard pressed against the brake drum, but it will become a reducing shoe when reversing, resulting in poor braking effect. Due to its large unidirectional braking torque, it is called a unidirectional balanced brake. The two front and rear brake cylinders of the two-way balance brake drive the two floating brake shoes. When braking forward, all the piston of the cylinder moves outward under the hydraulic pressure to press the two shoes against the brake drum. Under the Friction torque of the brake drum, both shoes rotate in the direction of wheel rotation until the support at the outer end of the piston of the two cylinder is pushed back to the end face of the cylinder. This brake has good contact and uniform wear, The braking efficiency is high, and most of them are used by Hyundai Motor Company.

time：2021-04-07

5SH, 450SH, 4SH, 3SHBasic parameters and size tables for 5SH, 450SH, 4SH, and 3SE:904SH904SH basic parameter table Connection: 1 screw M12-30+2 M12: grade 10-9 Tightening torque: 50N. mBraking torque (N. m)=braking force/1000 x[（ Φ B) /2-30]Φ B - Unit: mmUsed for emergency braking with high braking force N20 000 (pad A) 904-A Used for working braking with high braking force N15 000 (pad M) 904-M Release pressure bar60 Fully released displacement capacity cm333 Total cylinder volume cm398 Response time s0.3 Weight kg28Electric hydraulic block brake seriesYWZB YWZ2 YWZ3B YWZ4B YWZ5 YWZ6 YWZ8 YWZ9 YWZ12 YWZ13 YW YWL TYWZ2 YWPElectromagnetic block brakeJZ (TJ2A) MW (Z) ZWZA ZWZ2 ZWZ3A DCW3Electromagnetic failure protection disc brake5SE 561SE 560SE 56SEDCPZ12.74SE 3SE ST1SE ST2SE 450SEHydraulic failure protection disc brake5SH 4SH 3SH 450SH ST1SH ST2SH ST3SH ST4SHSB (YQP) SBDST5SH ST10SH ST16SH ST25SH ST25SH-A ST40SH 904SHSafety brake SBD125 SBD160 SBD200 SBD250 SBD365 SBD425Electric hydraulic arm disc brake YPZ2 Ⅰ, Ⅱ, Ⅲ YPZ2 Ⅳ, Ⅴ, ⅥST, SH imagesproduct details SE, SH, SP series fail safe disc brake service brake, allowing high frequency braking. High braking force, low maintenance cost, with automatic compensation device for pad wear (stable braking torque), and short response time.Large installation tolerance, brake disc end face runout: maximum value: ± 0.2mm. The verticality deviation of the base relative to the disc: maximum value: ± 4 ‰.The Centre-to-centre distance deviation of the brake disc relative to the base: large value: ± 2.5mm.This series includes the following types of brakes:561SE, 560SE, 56SE, 5SE, 450SE, 4SE, 3SE brakes (electromagnetic release). When working, there must be an ESE/ESP matching power supply (specific parameters can be found in the matching power supply).5SH, 450SH, 4SH, 3SH, 904SH brakes (hydraulic release). A hydraulic station is required for operation.5SP, 450SP, 4SP, 3SP brakes (pneumatic release) (5bar)The safety brake has a high braking force, just like the working brake.In case of overspeed, it is used for emergency braking, and under normal circumstances, the static brake response time is short.Large installation tolerance, brake disc end face runout: maximum value: ± 0.2mm. The verticality deviation of the base relative to the disc: ± 0.4 ‰.This series includes the following types of brakes: all SE series. Electromagnetic release. When working, it is necessary to have a supporting power supply (see specific parameters in the supporting power supply).All SH series are mainly ST series. Hydraulic release. Equipped with a hydraulic station during operation.All SP series. Pneumatic release (5bar)Note: ST1SE and ST2SE are only suitable for use as safety brakes. It can also be used as a working brake when the frequency of use is very low. According to the different needs of users, the following devices can be installed: pad wear display (achieved by displaying the wear line in the switch or pad). Tel: 13803910788Brake display (achieved through display switch).Manual release display (achieved through display switch)Special applications: Used for sintered pads when the disc temperature is very high, special pads (without sparks, etc.); Special discs (thickness, diameter, material, etc.).If you have any requirements, please contact our technical personnel.Spring brake - hydraulic obstruction - suitable for disc thickness: 30mmST1SH, ST2SH, ST3SHWBasic parameters and dimensions of ST1SH, ST2SH, and ST3SH Φ B - Unit: mmBasic parameter braking force torque formula N.m braking torque=braking force/1000 X（ Φ B/2-68) Response time S0.2 Backward distance on both sides mm0.7 Release pressure bar100 Oil inlet size "Z1/4 Rated customized power NST1SE: 35000 (safety braking)/25000 (working braking) ST2SE: 70000 (safety braking)/50000 (working braking) ST3SE: 147000 (safety braking)/105000 (working braking) Overall dimension mm Fully released displacement capacity cm3 ST1SH: 18 ST2SH: 50 ST3SH: 135 Total cylinder volume cm3 ST1 SH: 34 ST2SH: 83 ST3SH: 227 Weight Kg ST1SH: 117 ST2SHE: 117 ST3SH: 118AA=0. 203 x Φ B+211CC=0.456 x Φ B-133D25E285F340G180H410I90J230K200L213.5M55N5OM30P27.5ST3SH-AST3SH-A basic parameter braking torque (N.m)=braking force/1000 x[（ Φ B) /2-68] Oil inlet: M18x1.5 Φ B - Unit: mmBraking force N220 000, release pressure bar110-120, fully released displacement capacity cm3180, total cylinder volume cm3310, response time s0.2, weight kg118Amm=(0.171 x Φ B) +240Cmm=(0.47 x Φ B) -120ST10SH, ST16SH, ST25SH, ST40SHST10SH: Connection: 8 bolts M 24 grade 12.9 Tightening torque 1000NM;ST16SH: Connection: 8 bolts M 30 grade 12.9 Tightening torque 1350NM;ST25SH: Connection: 8 bolts M 30 grade 12.9 Tightening torque 1500NM;ST40SH: Connection: 8 bolts M 39 grade 12.9 Tightening torque 5000NM;ST10SH, ST16SH, ST25SH, ST40SH Basic Parameters and Dimension Tables Unit (mm)Brake model ST10SHST16SHST25SHST40SH Basic parameters Braking torque formula: N.m Braking torque=Braking force/1000x（ Φ B/2-75) Braking torque=braking force/1000x（ Φ B/2-90) Braking torque=braking force/1000 x（ Φ  B/2-90) Braking torque=braking force/1000 x (B/2-100) Customized power N810001500002000020000288000, oil inlet size: M18x1.5, clearance mm212, working pressure MPa131519, cylinder volume mL275360560810, response time S0.2, fully released displacement capacity mL32218831, weight Kg 218286, external dimensions A456572100C457090100D190260302367F25323241G5565100H130135150219i95110130168J300345380522K4560119L31537040462M190205220268N8888990O353100P48484850Q28888288306 R648600650630ST25SH-AST25SH-A basic parameter table connector: 8 bolts M30; Level 12.9; Tightening torque 1500NMBraking torque (N.m)=braking force/1000x[（ Φ B/2) -75]Φ B - Unit: mmLarge braking force N230000200000180000150000 clearance mm1.02.03.04.0 release pressure bar190 fully released displacement capacity ml95 cylinder volume ml560 response time s0.2 weight kg280ST25SH-CST25SH-C basic parameter table connector: 4 bolts M36; Level 12 9; Tightening torque 4280NMBraking torque (N.m)=braking force/1000 x[（ Φ B/2) -60]Φ B - Unit: mmLarge braking force N230000200000180000150000 clearance mm1.02.03.04.0 release pressure bar160 cylinder volume ml570 fully released displacement capacity ml115 response time s0.2 weight kg280ST4SH, ST5SHST4SH: 4 screws M33 for connectors: grade 10-9; Tightening torque: 685N. m;2 screws M24: grade 10-9; Tightening torque: 255N. m;ST5SH: 6 screws for connecting piece M33: grade 10-9; Tightening torque: 1600N. mST4SH, ST5SH Basic Parameters and Dimension Tables Unit (mm)Basic parameter braking torque formula Nm Braking torque=braking force/1000 x（ Φ>  B/2-108) Single side retreat mm1 release pressure barST4SH: 100 ST5SH: 190 oil inlet size "ST4SH: Z1/4 ST5SH: Z1/2 customized power NST4SH: 120000 (safety braking)/90000 (work braking) ST2SE: 70000 (safety braking)/22000 (work braking) Response time S0.2 Overall size mm Full release displacement capacity cm3ST4SH: 110 ST5SH: 120 Total cylinder volume cm3ST4SH: 408 ST5SH: 678 Weight KgST4SH: 285 ST5SH: 440A80C100D125F336GST4SH: 200 ST5SH: 204HST4SH: 355 ST5SH: 4201140J155K173L460M190N410 0ST4SH: 617 ST5SH: 970P40Q34R25SST4SH: 4 ST5SH: 6TST4SH: 2 ST5SH: 0

time：2021-04-07

Electric hydraulic drum brake using mechanism for brakingBrakes are mainly used for deceleration and parking braking of various machinery. Brakes are almost an indispensable and important component in various operating mechanisms of cranes. In response to their importance, this article describes the structural characteristics and application situation of crane brakes.Regularly check the working condition of the brakes.During the inspection, the following items should be emphasized:Check whether the components of the brake can move normally and whether the adjusting nuts are fastened.Whether the components of the thruster are normal and whether the hydraulic oil is sufficient. Is there any oil leakage or seepage. Check if the insulation of the incoming wires is good.The size H1 should not be less than the small dimensions listed in Table 1. If it exceeds the requirements, it must be adjusted immediately, otherwise the braking effect will be lost.Check whether the brake shoe rests on the brake wheel normally, whether the friction surface is in good condition, and whether there is greasy dirt. When the thickness of the brake pad reaches the values in Table 2, the brake pad should be replaced.1、 Quality standard: original factory standard, with a one-year shelf life, and consumables are not within the shelf life;2、 Delivery time: days;3、 Delivery location: Your company's location;4、 Transportation method: highway logistics or express delivery;5、 Transportation costs: borne by the seller;6、 Validity period of quotation: 30 daysAccording to your needs, choose temperature resistance, wear resistance, select materials, provide drawings, or provide technical requirements to design friction coefficients according to production requirements.Electric hydraulic brakes (hereinafter referred to as brakes) are mainly used for braking various mechanisms in lifting, transportation, ports, construction and other machinery. The installation dimensions and braking torque parameters of the products comply with the JBZQ4388-86 standard, the technical requirements comply with the JB6406-92 standard, and the working conditions of the brakes comply with the relevant provisions of this sample.2. Usage conditions:2.1 Environmental temperature: -25 ℃ -+45 ℃ (refer to the user manual of the thruster):2.2 There should be no flammable, explosive or corrosive gases in the surrounding working environment, and the relative temperature of the air should not exceed 90;2.3 Please refer to the nameplate of the thruster for the power supply voltage;2.4 The altitude of the location of use shall comply with GB755-2000.3. Structure and working principle: Z4-121 standard imageAdvantages and disadvantages of electric hydraulic drum brakes:The advantages and disadvantages of the drum brakes introduced above can be analyzed and compared as follows.(1) Firstly, in terms of braking efficiency, under the condition of basically the same structural parameters, the automatic booster brake is fully utilized due to its increasing effect on friction force, followed by the balanced brake with high braking efficiency and the non balanced brake with low braking efficiency. However, on the other hand, due to the unstable friction coefficient between the brake shoe and brake drum itself, It varies greatly depending on the material properties, temperature, and surface conditions of the brake drum and friction pad (such as whether they are contaminated with water, oil, etc.). The braking efficiency of an automatic booster brake is sensitive to the friction coefficient and is therefore very unstable.(2) Drum brakes utilize friction to varying degrees to ensure certain braking efficiency, but in use, the stability of braking efficiency is poor due to the unstable friction coefficient.(3) When the brake is working, most of the heat generated by friction is transferred to the brake drum to raise its temperature. In order to reduce the temperature rise, the brake drum should have a large Heat capacity.Drum brake:(1) Simple Unbalanced Brake: This is a common type of hydraulic wheel brake. In this type of brake, the auxiliary shoes rely on frictional force, resulting in much greater pressure on the brake drum than the reducing shoes. To ensure uniform wear of the two shoes, the auxiliary shoes are made longer than the reducing shoes, so that the opening force acting on the shoes is equal, but the frictional torque generated is equal, thus achieving uniform wear.(2) Balanced brake: Balanced brake has two types: unidirectional and bidirectional assistance. The unidirectional assistance balanced brake has an automatic assistance effect when each shoe is hard pressed against the brake drum, but it will become a reducing shoe when reversing, resulting in poor braking effect. Due to its large unidirectional braking torque, it is called a unidirectional balanced brake. The two front and rear brake cylinders of the two-way balance brake drive the two floating brake shoes. When braking forward, all the piston of the cylinder moves outward under the hydraulic pressure to press the two shoes against the brake drum. Under the Friction torque of the brake drum, both shoes rotate in the direction of wheel rotation until the support at the outer end of the piston of the two cylinder is pushed back to the end face of the cylinder. This brake has good contact and uniform wear, The braking efficiency is high, and most of them are used by Hyundai Motor Company.(3) Automatic booster brake: This structure BL130 uses a floating adjustment rod to connect the lower ends of the left and right brake shoes. When the upper end of the left brake shoe is pressed towards the brake drum by the wheel cylinder, the opening force of the wheel cylinder is transmitted to the lower end of the right brake shoe through the potential effect of the shoe, which is greater than the opening force of the wheel cylinder. The right brake shoe, which also has the potential effect, produces a greater braking torque under the greater thrust effect than the left brake shoe, The braking efficiency of the entire brake is higher than that of the balanced type, and it has a device for automatically adjusting the shoe clearance.Widely used in lifting, metallurgy, mining, ports Main products in construction and other machinery include: electric hydraulic block brake series YWZB YWZ3B YWZ4B YWZ5 YWZ8 YWZ9 YWZ12 YWZ13 YW YWL TYWZ2 YWP electromagnetic block brake JZ (TJ2A) MW (Z) ZWZA ZWZ2 ZWZ3A DCW3 electromagnetic failure protection disc brake 5SE 561SE 560SE 56SE DCPZ12.7 4SE 3SE ST1SE ST2SE 450SE hydraulic failure protection disc brake 5SH 4SH 3SH 450SH ST1SH ST2SH SH ST3SH ST4SH SB (YQP) SBDST5SH ST10SH ST16SH ST25SH ST25SH-A ST40SH 904SH SBB electric hydraulic arm disk brake YPZ2 Ⅰ, Ⅱ, Ⅲ YPZ2 Ⅳ, Ⅴ, Ⅵ pneumatic caliper disk brake QP12.7 5SP 4SP 3SP 450SP PD ADP60M-ADP61M-ADP62M hydraulic direct acting disk brake DADH75 ADH60 ADH90 ADH120 DADH80 DADH90 DADH120 DADH103 DADH195 electric hydraulic thruster YT1 Ed explosion-proof electric hydraulic thruster BYT1 BED

time：2021-04-07

The crane brake mainly includes lifting mechanism, running mechanism, luffing mechanism, slewing mechanism, and metal structure. The lifting mechanism is the basic working mechanism of the crane brake, mostly composed of a suspension system and a winch, and there are also hydraulic systems for lifting and lowering heavy objects. The operating mechanism is used to vertically and horizontally transport heavy objects or adjust the working position of the crane, generally consisting of an electric motor, reducer, brake, and wheels. The luffing mechanism is only equipped on boom type cranes. When the boom is raised, the amplitude decreases, and when it is lowered, the amplitude increases. There are two types of luffing: balanced and unbalanced. The slewing mechanism is used to rotate the arm frame, which is composed of a driving device and a slewing support device. The metal structure is the skeleton of a crane, and the main load-bearing components such as the bridge, boom, and gantry can be box or truss structures, or web structures. Some can use steel sections as support beamsYWZ9 Workshop Large Picture YT1, ED, YTD. Series Electric Hydraulic PusherJZ, MW, TJ2, ZWZA, ZWZ3 series electromagnetic brakesYWZ, YWZ3, YWZ4, YWZ5, YWZ8, YWZ10, YWZ9, YWZ13, YW series electric hydraulic brakesIt is highly likely to generate noise, and except for the damaged shock absorbers that cannot be used, the shock absorbers installed during sales are all useful. In addition, various composite materials on the damping pads also have their own purposes. During repairs, the damping pads and composite materials should be installed under the friction pads to reduce vibration between the friction pads and brake calipers. When adjusting the brake caliper and friction plate with a brake disc for damaged brake parts, the installed parts (such as springs, gaskets, keyways, clamps, pins, bushings, etc.) may have been worn, loosened, and aged. If used continuously, it may produce eccentric noise. In addition, eccentricity can also cause hot spots and glaze quality on the rotor surface, so when repairing the brake, the parts should be inspected and replaced if there are any problems. The outer friction plate is loose. Many brake outer friction plates are fixed to the support earrings on the base plate, and these earrings must be firm to effectively prevent the friction plate from shifting. Otherwise, the friction plate will become loose, causing noise during braking and bending the earrings.A crane refers to a multi action lifting machinery that vertically lifts and horizontally transports heavy objects within a certain range. Also known as overhead crane, aerial crane, and craneThe main feature of a tire mounted crane is that its driving cab and lifting control cabin are integrated, evolved from a crawler crane (crawler crane), which transforms the tracks and walking brackets of the walking mechanism into a chassis with tires, overcoming the disadvantage of damage caused by the crawler shoes of the crawler crane (crawler crane) to the road surface. It belongs to material handling machinery.Overhead crane is a lifting equipment that is horizontally mounted over workshops, warehouses and stock yards for lifting materials. Due to its two ends located on tall cement columns or metal supports, the shape resembles a bridge. The bridge of Overhead crane runs longitudinally along the track laid on the viaducts on both sides, which can make full use of the space under the bridge to lift materials without being hindered by ground equipment. It is a widely used and numerous lifting machinery.Some working characteristics of lifting equipment are intermittent movements, that is, the corresponding mechanisms for picking up, transporting, unloading, and other actions in a working cycle work alternately. The development and use of cranes in the market are becoming increasingly widespread. Due to the lack of support legs for lifting and frequent accidents during lifting, the driving speed is also faster than that of the crawler crane brake (crawler crane); Stable operation, large lifting capacity, capable of lifting and walking within a specific range, but must ensure that the road is flat and solid, the tire pressure meets the requirements, and the lifting distance from the ground must not exceed 50CM; Prohibit long-distance walking with load

time：2021-04-07

Service brake YWZ-200/25 YWZ-300/45The lifting and lowering speed of heavy objects during driving should be stable and uniform, and sudden braking is not allowed; The left and right rotation should be balanced, and no reverse action should be taken before the rotation has stopped steadily; When lifting at or near full load, it is strictly prohibited to lower the arm or perform two actions simultaneously. When lifting objects, the rope should be pulled and the speed should be uniform. Sudden braking and changing direction are prohibited; When operating the controller, do not directly change the direction of operation. When the crane needs to travel with a load, the load should not exceed 70% of the allowable lifting capacity, the walking road should be solid and flat, the weight should be in the front direction of the crane, the weight should not be more than 500mm from the ground, and the pulling rope should be tied and the crane should travel slowly; Long distance driving with load is strictly prohibited. The ground of the crane is uneven, and it is prohibited to perform two actions simultaneously when lifting the service brake. When using two or more cranes to lift the same heavy object, the steel wire rope should be kept vertical; The lifting and operation of each crane should be synchronized; The load borne by each crane shall not exceed the rated lifting capacity of each location. There are various models of electric hydraulic thrusters, but their working principles are similar. After being powered on, the motor inside the hydraulic brake drives the centrifugal oil pump inside the hydraulic brake head, increasing the hydraulic oil pressure. Hydraulic oil transfers pressure to the piston in the oil cylinder, and the hydraulic push rod moves upwards driven by the piston to open the brake shoe. JELITA, electric hydraulic thrusters are used for driving devices of various block brakes and disc brakes. Do you know the working principle of electric hydraulic thrusters? Let the editor of Jintou explain it to you. There are various models of electric hydraulic thrusters, but the working principle is similar, and the structure is shown in the following figure. Working principle of electric hydraulic thruster Working principle of electric hydraulic thruster: technical data of hydraulic holding brake (taking the technical data of MYTI-90 electric hydraulic thruster as an example): thrust 900N, stroke 80mm, rising time 0.8S, Fall time 0.5S, power 0.25kW. Equipped with No. 20 engine oil, with a weight of 720 operations per hour. The matching brake model is (the combination of the thruster and brake can form a hydraulic brake). YWZB Standard DrawingDetailed information on hydraulic thrusters YTD5-230/50, YTD5-300/50, YTD5-500/60, YTD5-800/60Brand/model: Jiaozuo brake YWZ200/25, YWZ300/45, YWZ400/90, YWZ500/125Purpose: CraneHydraulic thrusters YTD5-230/50, YTD5-300/50, YTD5-500/60, YTD5-800/60Specific models: YT1, ED, YTD. series electric hydraulic thrusters JZ, MW, TJ2, ZWZA, ZWZ3 series electromagnetic brakesYWZ, YWZ3, YWZ4, YWZ5, YWZ8, YWZ10, YWZ9, YWZ13, YW series electric hydraulic brakesWorking principle of crane brake:Although the crane brakes are different according to different types of operation requirements, they play the same function in Gantry crane, mainly by controlling the rotation and inertia movement of the motor, so that the control equipment can be stopped, accelerated or decelerated in a certain motion state. Due to the operational function of the crane, brake failure is absolutely not allowed during the lifting of heavy objects. If the brake failure causes inertia control to fail, it can damage the equipment or threaten the health and safety of surrounding personnel. Therefore, the brake plays a very important role in the safe and stable operation of the crane equipment.The crane brake mainly includes lifting mechanism, running mechanism, luffing mechanism, slewing mechanism, and metal structure. The lifting mechanism is the basic working mechanism of a crane, mostly composed of a suspension system and a winch, and there are also hydraulic systems for lifting and lowering heavy objects. The operating mechanism is used to vertically and horizontally transport heavy objects or adjust the working position of the crane, generally consisting of an electric motor, reducer, brake, and wheels. The luffing mechanism is only equipped on boom type cranes. When the boom is raised, the amplitude decreases, and when it is lowered, the amplitude increases. There are two types of luffing: balanced and unbalanced. The slewing mechanism is used to rotate the arm frame, which is composed of a driving device and a slewing support device. The metal structure is the skeleton of a crane, and the main load-bearing components such as the bridge, boom, and gantry can be box or truss structures, or web structures. Some can use steel sections as support beamsSome working characteristics of lifting equipment are intermittent movements, that is, the corresponding mechanisms for picking up, transporting, unloading, and other actions in a working cycle work alternately. The development and use of cranes in the market are becoming increasingly widespread. Due to the lack of support legs for lifting and frequent accidents during lifting, the traveling speed is also faster than that of crawler cranes (crawler cranes); Stable operation, large lifting capacity, capable of lifting and walking within a specific range, but must ensure that the road is flat and solid, the tire pressure meets the requirements, and the lifting distance from the ground must not exceed 50CM; Prohibit long-distance walking with loadThe company mainly produces all kinds of brakes and electric hoists for single and double beam bridge cranes and Gantry crane. Suitable for workplaces such as mines, freight yards, docks, etc. The product is best-selling in more than 20 provinces and cities across the country. Having the production capacity and rich experience in contracting the manufacturing, installation, and maintenance of special, large, and special lifting machinery equipment, able to meet the product standards and requirements of various customers.

time：2021-04-06

Hydraulic brakes for belt conveyorsThe hydraulic brake of a belt conveyor is essentially a hydraulic brake that is fixed by a turbine and generates a huge resistance moment to the high-speed liquid flow driven by the pump wheel, causing the belt conveyor to slow down and operate. It can change the size of the braking torque by adjusting the filling amount, achieving the controllable braking function of the downward conveyor belt. The selection of belt conveyor brakes is crucial, as the safety braking system is generally installed at the low-speed drum end of the transmission system. The turning belt conveyor has a high braking torque requirement, mainly composed of a hydraulic brake coupling with a pump and turbine, and a hydraulic cooling control system. When the belt conveyor operates normally, the brake is not filled with liquid, and the pump wheel is driven by the drive motor to operate. When braking is needed, the liquid is input and the braking torque is adjusted based on the amount of liquid filled. The commonly used liquid is oil, but due to the need to consume all the kinetic energy of the belt conveyor in a short braking time, the oil temperature is bound to rise sharply. Therefore, a circulation system must be used in the oil circuit to facilitate heat dissipation. It has the advantage of large braking torque and adjustable adjustment, but due to the equipment such as a pump station, the equipment has a large volume. Belt conveyors, also known as belt conveyors, are widely used in various industries such as home appliances, electrical appliances, machinery, tobacco, and food, for the assembly, testing, debugging, packaging, and transportation of objects. The conveyor line of the belt conveyor can be selected according to the conveying process requirements of different materials. The products include YWZ-YWZ12, YW, and YWP series block brakes; Various disc brakes and YT1, YTD, ED series electric hydraulic thrusters; ZWZ, ZWZ3A, TJ2, TJ5, TJ2A and other series of electromagnetic brakes, as well as BYWZ series of electric hydraulic explosion-proof brakes. In addition, we also design and produce derivative and non-standard series products according to user requirements, allowing users to choose from a wide range of productsYWZ5-630/301 is widely used for deceleration and parking braking of mechanical drive devices in lifting, metallurgy, mining, ports, docks, construction, and other fields.. YWZ5 electric hydraulic block brake, YWZ5 series electric hydraulic block brake:YWZ5-200/23 electric hydraulic block brake, YWZ5-250/50 electric hydraulic block brake,YWZ5-315/50 electric hydraulic block brake, YWZ5-315/80 electric hydraulic block brake,YWZ5-400/80 electric hydraulic block brake, YWZ5-400/121 electric hydraulic block brake,YWZ5-500/121 electric hydraulic block brake, YWZ5-630/301 electric hydraulic block brake,New pictures of ywz9 workshopElectric hydraulic arm disc brake series model:YPZ2IV, V, VI electric hydraulic arm disc brakes, YPZ2I, YPZ2II, YPZ2III electric hydraulic arm disc brakes.Pneumatic caliper disc brake series model:DCPZ12.7 series electromagnetic caliper disc brake, CQPL12.7-B pneumatic caliper disc brake, CQPL12.7-A direct pneumatic caliper disc brake, CQP12.7 pneumatic direct caliper disc brake, QPL12.7-A pneumatic caliper disc brake, QP12.7-A pneumatic caliper disc brake, QP12.7 pneumatic caliper disc brake, DJPZ motor disc brake.Electric failure protection brake series model:ST1SH hydraulic failure protection brake, ST2SH hydraulic failure protection brake, ST3SH hydraulic failure protection brake, ST4SH hydraulic failure protection brake, ST5SH hydraulic failure protection brake, SBD hydraulic failure protection brake, 561SE electric failure protection brake.Electric hydraulic windproof iron wedge brake series model:DFX, DAF electromagnetic hydraulic safety windproof iron wedge brake, YFX (YAF) series electric hydraulic windproof iron wedge brake.Hydraulic top rail brake series model:YDGZ-40 hydraulic lever type top rail brake, YDGZ series direct acting hydraulic top rail brake. SBD250-A refers to the rated clamping force of 250kn, SBD80-B hydraulic disc brake with brake opening limit switch, type A safety brake SBD250-C hydraulic disc brake, brake disc diameter of 1600mm, SBD250-C hydraulic disc brake 30mm behind the discHydraulic braking device for belt conveyor (1) Hydraulic regulating and pressing actuator for belt conveyor. Its working principle is to connect a positive displacement oil pump to a belt conveyor and drag it by the main engine. When braking, the oil pump converts mechanical energy into hydraulic energy. By adjusting the outlet pressure of the pump, the braking torque can be adjusted to achieve the braking purpose of the belt conveyor. After the pressure of the hydraulic pressure regulating braking device is determined, the system will output a constant braking torque that does not change with the engine speed. Its main advantage is that the braking torque is proportional to the set pressure, and it is independent of the speed, so the speed can be braked to zero without the need for a mechanical brake. (2) Hydraulic speed control brake for belt conveyor. The oil pump of this device rotates with the main engine. When the flow rate of the hydraulic oil pump is changed, the speed of the belt conveyor can be changed, thereby achieving controllable braking of the braking device. The hydraulic braking device can effectively brake and decelerate the downward conveyor belt by controlling the oil pressure or flow rate. For the braking of high-power belt conveyors, high-pressure and high flow variable piston pumps are generally used. When braking the belt conveyor, the displacement is adjusted to high, while when the belt conveyor is running normally, the displacement is adjusted to low. Due to the long-term high-speed operation of the hydraulic pump, rapid wear and short service life, a large amount of braking heat is taken away by the hydraulic oil during the braking process and dissipated through a water-cooled radiator, adding an additional system. When the oil temperature is too high, hydraulic components are prone to malfunction. At the same time, the oil is prone to deterioration due to high flow rate circulation and temperature changes, further affecting the reliability of the hydraulic control system. At the same time, when the belt conveyor is fixed, due to leakage from the hydraulic pump and hydraulic system, a hydraulic push rod brake must be specially added to fix the vehicle. The working principle of the viscous controllable braking device is the same as that of the liquid viscous controllable soft starting device. It utilizes the frictional force of friction plates in viscous liquids to transmit torque. To meet the various braking performance requirements of the belt conveyor, the viscous controllable braking device adopts a normally closed structure. When the active shaft drives the active friction plate to rotate, due to the immobility of the driven friction plate, friction is generated between the active and driven friction plates. By changing the oil pressure in the control cylinder, the pressing force between the friction plates of the master and slave hydraulic brakes can be adjusted, and the Friction torque between the active friction plate and the driven friction plate can be further changed, so as to meet the technical requirements of the belt conveyor for braking. During braking, the braking torque increases with the decrease of oil Intermembrane space and decreases with the decrease of braking speed. Therefore, the oil Intermembrane space should be continuously reduced during braking to ensure a certain braking torque

time：2021-04-06