Jiaozuo brake

Reasons and solutions for the malfunction of the winch mechanism actuator:During the process of adjusting the brake of the winch, there are often situations where it is too tight to release or too loose to hold. So what is the reason for this? How should we solve it?(1) The relative error between the sleeve center of the brake wheel and the center of the brake pad is too large (not allowed to exceed 3mm). This is because there was an error in the installation of the gearbox after maintenance, which caused the position of the brake wheel to be changed, resulting in a case where the brake shoe could not be opened due to one side breaking through the shoe. When the brake wheel is aligned at the center of two brake shoes, this fault can be eliminated.(2) The centerline of the brake shoe and brake wheel is tilted. When the installation position of the winch reducer and the sliding lever system (brake frame) is incorrect, it can cause partial alignment between the intermediate bearing and the brake wheel, causing the closed bearing to not tightly hold the brake wheel. In this case, tightening it slightly will result in the brake shoe not fully loosening from the brake wheel, causing the brake wheel to experience high heat due to friction. When the brake shoe is released, the inclination or unevenness between the brake shoe and the brake wheel shall not exceed one thousandth of the width of the brake wheel.(3) Due to severe wear and tear on the various pin shafts and shaft holes of the brake, the ineffective stroke (empty stroke) for adjusting the electromagnet is increased, while the effective stroke is reduced.(4) After the brake wheel is worn, it causes errors during reprocessing.(5) Due to improper adjustment of the winch, the brake solenoid stroke is too small. This situation often occurs due to only adjusting the pull rod without adjusting the vertical rod (6) The machining size of the newly replaced adjusting pull rod is incorrect.(7) The main spring is not under force or the adjustment screw (top screw) is not properly adjusted, resulting in one case of excessive tension and one case of insufficient tension.(8) The upper and lower connections of the winch brake electromagnet traction rod are extremely rigid, and the movement resistance of the traction rod is too large, which causes the electromagnet to fail to absorb or makes it difficult to judge the quality of the winch1. Check if the wire rope of the winch is complete. If the steel wire rope is found to be scratched, twisted, deformed, or broken after receiving the winch, please contact the manufacturer in a timely manner to return or exchange the goods. Steel wire rope is the load-bearing component of the winch, and high-quality manufacturers will not make such low-level mistakes.2. Check if the surface of the winch is smooth and flat. In order to save costs, low-quality winches will use paint of poor quality. Although it cannot be detected, if compared with regular manufacturers' winches, it will be found that the color of low-quality winches is relatively dim and rough to the touch.The above is a simple technique for judging the quality of a winch. If you want to learn more, please feel free to call for consultation.Improper operation or prolonged use of the winch can lead to poor braking effect and slipping during braking. Therefore, it is important to maintain the winch brake to improve efficiency and operate the winch safely. The following is the maintenance knowledge of the winch mechanism actuator summarized by the editor for everyone, which can be stored for future use.1. According to the requirements of the brake manual and in combination with the actual situation of on-load debugging, adjust the working stroke of the brake spring and brake shoe to ensure reliable braking during power outage and even release after power on.2. The working surface of the brake wheel must be flat and smooth, and the contact surface between the brake shoe and the brake wheel should not be less than 80%. Oil and water should be avoided from entering, causing slipping.When the spring experiences cracks or permanent deformation, it should be replaced with a new component.4. Regularly check the wear condition of asbestos brake pads, and replace them when the wear exceeds 2mm.

time：2021-04-10

one hundred and ninety-one trillion and twenty-six billion one hundred and eighty million five hundred and forty-nine thousand one hundred and forty-fourEd-23/5, Ed-30/5, Ed-40/4, Ed-50/6 electric hydraulic thrusters, hydraulic thruster manufacturers, hydraulic thruster pricesEd-70/5, Ed-80/6, Ed-100/6, Ed-121/6 electric hydraulic thrusters, Eg-121/6, Edg-201/6 hydraulic thruster manufacturers, hydraulic thruster pricesED-201/6, ED-301/6, ED-50/12, ED-80/12 electric hydraulic thrusters, Eg-301/6 hydraulic thruster manufacturer, hydraulic thruster priceED-121/12, ED-201/12, ED-301/12, ED-450/12 electric hydraulic thrusters, hydraulic thruster manufacturers, hydraulic thruster pricesED-630/12, ED-121/8, ED-201/8, ED-301/8, ED-450/8 electric hydraulic thrusters, hydraulic thruster manufacturers, hydraulic thruster prices EB-300/50, EB-800/60, EB-1250/60, ED-2000/60ED-70/5, EB-500-60, ED-100/6, ED-121/6EB-220-50, EB-300/50, ED-40/4, EB-3000/60main features 1. The shell is made of cast aluminum alloy, with light weight and beautiful appearance;2. The motor is a non oil immersed structure, with Class B or F insulation (according to user requirements), good heat resistance, and long service life;3. The motor junction box is equipped with a seal and uses a cable stuffing box for incoming lines, which is firm and reliable. The electrical casing protection level reaches IP55;4. The surface of the motor shaft and push rod are specially treated, greatly extending the service life of the sealing element;5. The oil cylinder shell is equipped with a balance chamber on one side, allowing the thruster to be installed in any direction from 0 to 180 °, thereby expanding its range of use;6. All seals and bearings are made of world-renowned products, with reliable sealing and long service life;7. The fasteners are made of stainless steel material, which is beautiful and durable.Additional devices1. Upper limit switch: can indicate whether the brake is on, whether the push rod is pushed to the specified position, and other information;2. Lower limit switch: can indicate whether the brake is correctly closed, whether the push rod returns to the specified position, and can also set the upper and lower limit switches;3. Add a built-in spring (only available for short stroke thrusters), with the spring force determined by the user but not exceeding the built-in spring force (see parameter table);4. Adding a heater: When the ambient temperature at the place of use is below -25 ℃, users can add a heater as needed. The heater parameter table is shown in Appendix 1;5. The rising time delay valve and the falling time delay valve can extend the rising or Fall time steplessly. The delay range is from the rated action time to 30 seconds. The specific delay value can be adjusted according to the user's requirements. All push rod connection blocks of thrusters can rotate. The Ed50-Ed301 fixed seat can rotate 90 °, while the Ed23-Ed30 fixed seat can also provide 90 ° rotation, but the installation height dimension A is increased by 8mm;Regardless of the installation position, the piston rod cannot withstand any force to avoid affecting its effectiveness and lifespan.Question:[Single choice] The slow rise of the push rod of the electric hydraulic thruster is not the reason.A Insufficient oil quantityB The main spring is too tightC Improper use of low temperature oilD Voltage too low

time：2021-04-10

YWZ8 hydraulic brake:YWZ8-200/E23 matching thruster Ed-23/5YWZ8-200/E30 matching thruster Ed-30/5YWZ8-300/E30 matching thruster ED-30/5YWZ8-300/E50 matching thruster ED-50/6YWZ8-300/E80 matching thruster Ed-80/6YWZ8-400/E50 matching thruster Ed-50/6YWZ8-400/E80 matching thruster Ed-80/6YWZ8-400/E121 matching thruster Ed-121/6YWZ8-500/E121 matching thruster Ed-121/6YWZ8-500/E201 matching thruster Ed-201/6YWZ8-600/E121 matching thruster Ed-121/6YWZ8-600/E201 matching thruster Ed-201/6YWZ8-600/E301 matching thruster ED-301/6YWZ8-700/E201 matching thruster Ed-201/6YWZ8-700/E301 matching thruster Ed-301/6YWZ8-800/E301/12 matching thruster Ed-301/12

time：2021-04-08

For the brake loss caused by electrical faults, the above method cannot be used. Instead, the protective box knife switch should be quickly opened to cut off the power of the winch brake and adjust the brake holding brake.Electric hydraulic block brake seriesYWZB YWZ3B YWZ4B YWZ5 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 904SHSBBElectro hydraulic arm disc brakeYPZ2 I, II, IIIYPZ2 IV, V, VIPneumatic caliper disc brakeQP12.7 5SP 4SP 3SP 450SPPDADP60M-ADP61M-ADP62MHydraulic direct acting disc brakeDADH75ADH60ADH90ADH120DADH80DADH90DADH120DADH103DADH195Electric hydraulic thrusterYT1EdExplosion proof electric hydraulic thrusterBYT1BEDSafety windproof brakeYFX (YAF) DFX (DAF) YDGZ YDGZ-40 YLBZThe hydraulic push rod brake is driven by the Ed series electric hydraulic thrusters imported from German EMG company, and its installation dimensions comply with JB/ZQ 4388-86.Usage conditions: Environmental temperature: -20~+50 ℃. The relative humidity of the air shall not exceed 90%. In a place where there is no explosion hazard and there is no gas or conductive dust in the medium that can corrode metals and insulation. Generally used for three-phase AC power supplies of 50Hz and 380V (products with different voltages of 50Hz or 60Hz can be provided according to user requirements).Electric hydraulic brakes are widely used in various lifting transportation, port loading and unloading, metallurgical equipment, mining machinery, and engineering machinery for deceleration and parking (maintenance) braking.

time：2021-04-08

The hydraulic brake of cranes is an important factor in ensuring the safe operation of cranes, especially with the increasingly widespread application of cranes today, resulting in more frequent safety accidents. Due to the complex working environment of cranes, it is necessary to ensure the safe selection of crane brakes. As the core component of the crane brake, the performance of the crane hydraulic brake directly affects the daily work efficiency and construction efficiency of the crane. Based on this, it is of great significance to strengthen the selection and safety performance analysis of crane brakesYWZ4, YWZ5, YWZ6. YWZ8, YWZ9, YWZ13, YW, YWZE series electric hydraulic drum brake models are used for crane Yangjiang hydraulic brake safety. Electric Yangjiang hydraulic brake is a Machine element that stops or decelerates moving parts in machinery1. Adjust the braking torqueTo ensure the safety of the selected Yangjiang hydraulic brake for the crane, it is necessary to analyze the torque performance of the brake. The selected brake needs to match the selection standard, and the hydraulic brake measures the operating size of the brake torque. Based on this, the torque value of the brake is adjusted through the method of marking.The hydraulic brake driving device is mainly responsible for the load-bearing action of the crane. By analyzing the device and adjusting the driving device parameters reasonably, it ensures the safety of the crane in practical applications. Hydraulic brakes can be used to annotate and indicate the relevant data and usage requirements in the application of the driving device. In practical applications, it is necessary to combine the application frequency of the driving device and observe the changes in the actual operation of the crane. Without adding brake pad wear, automatic compensation brakes need to be installed to avoid the driving device from operating beyond the range and state, thus detecting the brake compensation device. If the compensation device has a small stroke, It is necessary to adjust the driving parameters in a timely manner. In addition, if the lining of the lifting machine experiences deformation during long-term application, it can lead to a decrease in compensation stroke, thereby reducing braking force. This requires timely replacement of the lining.3 Adjusting the compensation device

time：2021-04-08

YWZ5 series hydraulic push rod brakeThe YWZ5 series hydraulic propulsion brake is a new product developed by absorbing the structural advantages of similar products both domestically and internationally. It uses the Ed thruster from German EMG as the driving device, and its installation dimensions comply with the GB 6333-86 standard. Usage conditions: ① Environmental temperature: -20~50 ℃. ② Relative humidity of air: not more than 90%. ③ In a place where there is no explosion risk, and there is no gas or conductive dust in the medium that can corrode metal and insulation. ④ Generally used for three-phase AC power supplies of 50Hz and 380V (products with different voltages of 50Hz or 60Hz can be provided according to user requirements).Specific model:YWZ5-200/23, YWZ5-200/23, YWZ5-250/23, YWZ5-250/23, YWZ5-315/23, YWZ5-315/30, YWZ5-315/50, WZ5-315/80, YWZ5-400/50, YWZ5-400/80, YWZ5-400/121, YWZ5-500/80, YWZ5-500/121, YWZ5-500/201, YWZ5-630/121, YWZ5-630/201, YWZ5-630/301, YWX5-710/201, YWZ5 710/301

time：2021-04-08

New quotation for explosion-proof electric hydraulic brake actuators in 2021Conditions for use of explosion-proof electric hydraulic thrusters: The altitude complies with the provisions of GB755-2000. The ambient temperature is -20 ℃~+40 ℃, and the average relative humidity of the installation site in the wet month does not exceed 90%. The pollution level of the surrounding environment allows for a three-phase AC power supply of 127V, 220V, 380V, 660V, 1140V/50HZ (60HZ). The thruster is equipped with a qualified motor that has obtained an explosion-proof certificate. When wiring the thruster motor, it is necessary to carefully compare the wiring with the motor nameplate. The diameter of the motor inlet cable should match the hole of the rubber pad, ensuring that there is no gap between the silicone rubber pad and the cable and outlet, otherwise the explosion-proof performance will be lost.This product complies with the technical requirements of the enterprise standard Q/JZHF01-2009 explosion-proof electric hydraulic thruster. The explosion-proof sign is "ExdI" and is suitable for electric hydraulic drum brakes used in coal mine belt conveyors (non mining working faces) and mine lifting equipment.BED201/12 BED301/12 BED630/12 explosion-proof electric hydraulic thrusterBED201/6 BED301/6 BED121/12 explosion-proof electric hydraulic thrusterBED50/12 BED80/12 BED121/6 explosion-proof electric hydraulic thrusterBED30/5 BED50/6 BED80/6 explosion-proof electric hydraulic thruster BED30 explosion-proof mesh diagramExplosion-proof Propulsion for Coal Mines BYT1-90Z/8 Explosion proof Electric Hydraulic Propulsion BYT1-25Z/4 Explosion proof Electric Hydraulic Propulsion BYT1-320Z/12 Coal Mine Special Explosion proof Electric Hydraulic Propulsion BYT1-45Z/6 Explosion proof Electric Hydraulic Propulsion BYT1-180Z/12 Explosion proof Electric Hydraulic Propulsion BYT1-125Z/10 Explosion proof Electric Hydraulic Propulsion BEd-30/5 Explosion proof Electric Hydraulic Propulsion BEd301/6 Explosion proof Electric Hydraulic Propulsion BED-121/ 6BED-50/6 explosion-proof electric hydraulic thruster BED-201/6 mining explosion-proof electric hydraulic thruster BED-80/6 explosion-proof electric hydraulic thruster BED-50/6 explosion-proof electric hydraulic thruster YT1-180/12 electric hydraulic thruster YT1-90/8 electric hydraulic thruster YT1-45/6 electric hydraulic thruster YT1-25/4 electric hydraulic thruster YT1-320Z/20 electric hydraulic thruster YT1-320Z/12 electric hydraulic thruster YT1-180Z/10 electric hydraulic thruster YT1-125Z/10 electric hydraulic thruster Pusher, BYT1 explosion-proof electric hydraulic pusher (hereinafter referred to as pusher). Suitable for driving and control devices such as clamping devices, valves, gates, pumps, etc Mainly used as a brake release for electric hydraulic drum brakes, it can also perform various movements through various forms of lever devices. This product complies with the technical requirements of the enterprise standard Q/JZHF01-2009 explosion-proof electric hydraulic thruster. The explosion-proof symbol is "Exd I" and is suitable for electric hydraulic drum brakes used in coal mine belt conveyors (non mining working faces) and mine lifting equipment. YT1 explosion-proof diagramThe thruster is an ideal component for achieving semi automation and automation of certain mechanical equipment. The piston rod adopts advanced protection, which can reduce wear and corrosion. The oil chamber of the hydraulic system with double-layer protective seal and double-layer sealing ring greatly improves the service life of the thruster. The thruster has the advantages of stable and noise free operation, low power consumption, long service life, and convenient maintenance.

time：2021-04-08

Main products of Jiaozuo Brake Co., Ltd.:1. YWZB, YWZ3, YWZ4, YWZ5, YWZ8, YWZ9, YWZ10, YWZ12, YWZ13 series electric hydraulic pad brakes2. YW series electric hydraulic tile brake3. YWL series electric hydraulic tile brake4. EYWZ series two-stage hydraulic block brake5. TWZ (B) series normally open operated pad brake6. JZ, MW, MWZ, ZWZA, ZWZ3, ZWZ3A series electromagnetic pad brakes7. YPZ2 series electric hydraulic arm disc brake8. YFX series electric hydraulic windproof iron wedge brake9. YLBZ series hydraulic wheel edge brake10. ED, YT1 series electric hydraulic thrusters11. BED and BYT1 series explosion-proof electric hydraulic thrusters12. TYWZ series hydraulic tile brake13. DCPZ series electromagnetic caliper disc brake14. QP12.7 series pneumatic caliper disc brake15. TYWZ2 series foot hydraulic block brake16. SE, SH, SP series failure disc protection brakes17. SBD series hydraulic failure protection disc brake18. DYT series electric hydraulic push rod electric push rodBYT1 series electric hydraulic thrusters:BYT1-18ZB/2; BYT1-25ZB/4; BYT1-25ZC/4; BYT1-45Z/4; BYT1-45Z/5; BYT1-45Z/6; BYT1-90Z/6BYT1-90Z/8; BYT1-125Z/10; BYT1-180Z/8; BYT1-180Z/10; BYT1-180Z/12; BYT1-320Z/12BYT1-320Z/20; BYT1-25/4; BYT1-45/6; BYT1-90/8; BYT1-180/12ED series electric hydraulic thrusters:ED-23/5; ED-30/5; ED-50/6; ED-80/6; ED-121/6; ED-201/6; ED-301/6; ED-50/12; ED-80/12; ED-121/12; ED-201/12; ED-301/12; ED-630/12BED ZED series electric hydraulic thrusters:BED30/5; BED50/6; BED80/6; BED121/6; BED201/6; BED301/6; BED50/12; BED80/12; BED121/12BED201/12; BED301/12; BED630/12Our company adheres to serving society with high-quality products and reasonable prices, promoting the spirit of diligence, dedication, efficiency, and innovation, adhering to the sales philosophy of customers, grasping high service quality and customer-centric as the long-term development strategy of the enterprise, and striving to provide customers with fast and more high-quality services and products.

time：2021-04-08

How to deal with the disc brake noise?1： Add an anti noise plate between the brake caliper piston and the brake lining to create a tilt on the piston. Then ensure that the brake pads and flexible touch during braking, so that the brake pads do not exhibit abnormal noise under normal wear conditions.2： When the disc brake is braking, the brake pad moves to one side, which can show the dynamic and static impact. This is because the gap between the brake pad and the caliper body is too large, which can be eliminated by soldering. However, it should be noted that the solder should be coated on the side opposite to the direction of travel to avoid failure under the effect of braking force.Application range of disc brake:Suitable for ports, steel cranes, tower cranes, engineering machinery, drilling machinery, hydraulic machinery, hydroelectric power generation, wind power generation, ships, belt conveyors, transmission equipment, and various irregular brake pads.Asbestos brake pad, non asbestos brake pad, semi metal brake pad, explosion-proof brake pad, steel back bonding pad, Disc brake pad and clutch plate, etc. Suitable for ports, steel cranes, tower cranes, engineering machinery, drilling machinery, hydraulic machinery, and the production of various materials of automotive and power vehicle brake pads. Asbestos-free brake shoes are a new generation of brake friction materials. Traditional asbestos brake materials pose a serious threat to human health and are gradually phased out products. The new asbestos free material not only poses no harm to the human body, but also has superior performance indicators compared to asbestos brake materials. The product is mainly used for brake pads, linings, etc. of various lifting machinery and other brakes.There are two types of brake pads: one is made of asbestos rubber steel wire mesh material for the brake band, and the other is made of asbestos resin. The non asbestos brake pad and brake pad use two types: plug-in and riveted, which are safe and reliable, convenient to replace, and fast. ST, SBD, SH imagesIts characteristics are:1. High friction coefficient, good mechanical strength, and low heat decay;2. Free of steel wool and high hardness friction agents, with low hardness and less likely to damage the brake disc;3. Non asbestos, green and environmentally friendly;4. Low wear and long service life.5. Not harmful to human health;6. Safe and reliable braking performance; No damage to the worn parts;7. Anti aging, non cracking, non conductive during grinding, and low braking noise;Select brake pad materials with softer and lower density for the brake.The wear of the friction plate must be regularly visually inspected, such as checking the friction plate every time the tire pressure is checked, or checking it every 3 months. Regularly check the wear limit of the brake disc and friction plate. When the brake disc and friction plate wear to the specified small thickness, the braking efficiency will decrease and must be replaced immediately. When the friction plate is burnt or contaminated with oil, it must also be replaced immediately. The friction plates must be replaced on a shaft basis and cannot be replaced on a single piece basis. They must also be produced by a designated manufacturer of heavy-duty truck.1) Inspection of friction platesBefore starting the inspection, it should be confirmed that the service brake, parking brake, and temporary parking brake for passenger cars are not applied, and the vehicle should be secured and the wheels should not move.Remove the sealing cap and use a ratchet wrench to rotate the adjusting bolt counterclockwise to loosen the friction plate. Remove the friction plate. As shown in Figure 2, measure the distance from the bottom surface of the brake block (including the bottom plate) to the friction surface with a Vernier scale. The small allowable thickness (including the bottom plate) is 11mm. It is required to select 4 points with uniform circumferential distribution for measurement, and avoid areas with severe burrs and wear.Check whether the friction plate is evenly worn. Use a Vernier scale to select 8 points that are evenly distributed in the circumferential direction (avoid the severely worn part) for measurement. The maximum allowable unevenness is 1mm. If the wear is uneven, check whether the sliding function of the brake caliper on the sliding pin is normal, whether there is dust between the friction plate bottom plate and the integral push plate, and whether the clearance adjustment function of the self-adjusting mechanism is normal.Attention: When replacing the friction discs, all friction discs of the two brakes on the same axle must be replaced simultaneously, and the new friction discs to be replaced must be selected from the original accessories specified by Heavy Duty Truck. Due to light braking, the wear of the inner friction plate may be more than that of the outer friction plate. The heating part of the service brake is concentrated on a narrow brake pad, and its unit pressure is greater than that of the drum brake. The brake pad and the piston of the caliper body are in direct contact, so the heat during braking is easily transmitted to the brake fluid. In this way, the disc brake is prone to air lock. However, if corresponding measures are taken, the occurrence of air resistance can also be prevented.1. Prevent the boiling point of brake fluid from decreasingVegetable oil type brake fluid cannot meet the use requirements of disc brake, so synthetic brake fluid with high boiling point must be used. However, synthetic brake fluid has water absorption properties. Under certain usage conditions, the boiling point decreases rapidly. To prevent a significant decrease in the boiling point of brake fluid, the following measures are commonly adopted:(1) Regularly replace the brake fluid. 3 months or 5000km in summer; After 6 months of winter or 1000 kilometers of driving, the brake fluid will be updated soon.(2) Brake fluids with different properties cannot be interchanged or mixed.(3) Store brake fluid tightly. Automobile maintenance networkTo increase the temperature of the brake fluid, it is necessary to ensure that the piston can flexibly and automatically return to its original position to avoid slipping or biting of the brake due to rust or jamming. When the brake pads are excessively worn, the heat transmitted to the brake fluid will also rapidly increase. Therefore, worn brake pads should be replaced in a timely manner.

time：2021-04-08

The electric hydraulic block brake of the crane is usually normally closedThe brake commonly used in cranes belongs to the normally closed type, and if users require a normally open type, they need to be notified separately before ordering. The body of the crane crane crane is very heavy and has a lot of inertia during operation. When the crane is in normal operation, it immediately reverses and brakes sharply, which will generate a large amount of torque in the entire operating mechanism and damage the transmission system. In severe cases, it may cause the transmission shaft to twist and break, and may also cause the vehicle body to twist and deform; Reverse emergency braking can also cause severe impact on the gear connection system, damage the gears, and cause equipment accidents; Reverse braking can also cause the electric dynamometer to generate a large amount of torque and strong current, which can seriously burn out the motor. The band brake is a normally open type, mainly relying on the friction between the brake wheel and the brake band wrapped on its surface to generate braking torque. When braking, it generates a large radial load on the shaft, resulting in uneven wear of the brake band. If the braking part is on the output shaft of the reducer, the braking device will be quite bulky.The electromagnetic block brake belongs to the normally closed type, which relies on the brake pads connected to the fixed bracket to compress the brake wheels on the transmission shaft, and the braking torque is generated by the friction force between the brake pads and the brake wheels. It controls the release and holding of the brake through the attraction and release of the electromagnet. Due to the power outage of the electromagnet, the suction suddenly disappears. The sudden application of force by the compression spring can cause severe braking on the mechanism, causing mechanical vibration of the transmission mechanism. Additionally, the lifespan of the electromagnet is very short and requires frequent maintenance or replacement. When the electromagnet is not tightly engaged, there is a risk of burning the coil. Its allowable number of joints per hour is relatively low, generally<300/h. In addition, when the load descends, with the permission of the safety barrier, the descent speed is affected, which is not conducive to improving efficiency and saving energy http://www.jzszdq.comReverse emergency braking can also cause the suspended object in the air to swing and cause the object to fall. Therefore, in work, except in special dangerous situations to avoid accidents, reverse emergency braking is not allowed.Relevant personnel should carefully inspect the reliability of hooks, wire ropes, brakes, and safety protection devices, and report any abnormal situations in a timely manner.Secondly, before starting the operation, the following conditions should be confirmed to be in a safe state before starting the machine:(1) Are all controllers set to zero;(2) Are there any unrelated personnel on the crane and in the operating area, and whether the operating personnel have been evacuated to a safe area;(3) Are there any obstacles that have not been cleared within the operating range of the crane;(4) Is the small distance between the crane and other equipment or fixed buildings at least 0.5m;(5) Is the power circuit breaker locked or equipped with warning signs;(6) Whether the site of the Mobile crane is leveled and the outriggers are firmly and reliably laid as required.Thirdly, before driving, it is necessary to ring the bell or warn; When approaching people during operation, intermittent ringtones or warnings should be given.Fourthly, drivers are not allowed to engage in the following behaviors during normal operation:(1) Parking with permission locators;(2) Using reverse braking for braking;(3) Conduct inspections and repairs during lifting operations;(4) Adjust the brakes of the lifting and luffing mechanisms with load, or increase the operating range with load;(5) Suspended objects shall not pass through the top of a person's head, and no person shall stand under the suspended object and lifting arm.Fifth, strictly follow the command signal operation, and for emergency stop signals, no matter who sends them, they must be immediately executed.Sixth, when the lifting load is close to or reaches the rated value, or when lifting dangerous goods (liquid metals, harmful substances, flammable and explosive materials), carefully check the brake before lifting, and use a small height and short stroke test lift to confirm that there are no problems before lifting.Seventh, the small distance between each part of the crane, lifting load, and auxiliary equipment and the transmission line should meet safety requirements;

time：2021-04-08

What to do if the crane's traveling brake failsSo, what can be done to better avoid the failure of the crane brake? Firstly, we need to understand why it malfunctioned?The brake is one of the important equipment of a crane, which has the function of controlling the lifting object to rise and fall, and achieving parking.The integrity of the brake is a guarantee for the safe production of the crane. During operation, the crane often experiences malfunctions such as brake failure.The main reason is severe wear and tear of the brake; The main components of the brake are damaged or the spring is ineffective; The electromagnet is stuck or the armature and horizontal lever are detached.Therefore, the preventive measures for the above fault causes include:Regularly check whether the hinge is stuck or damaged; Whether the connections of each part are loose; Whether all rotating mechanisms are intact; Whether the hydraulic system is intact; Check if the brake wheels and belts are clean.During the inspection, if any problems are found with the crane brake, it is prohibited to continue using it and effective measures are required to be taken in a timely manner.Regular maintenance and lubrication of the brakes are also necessary to make reasonable and standardized adjustments. Ensure that the crane can operate safely. Two types of diagrams, YWZ4 and YWZWhat should be paid attention to when using electric hydraulic thrusters1. The brake lining of the electric hydraulic thruster is a vulnerable component, and its usage limit should not be less than 0.8mm for the friction material part. Otherwise, the brake lining needs to be replaced.2. When cleaning the vehicle, we must not use cotton wool to clean the surface of the brake disc, in order to avoid polluting the brake lining and causing brake performance failure.3. The brake fluid of the electric hydraulic actuator in the reservoir should not be lower than the low limit. When adding brake fluid, it is necessary to pay attention to cleanliness, and dust and dirt should not be mixed into the reservoir to avoid blockage of the brake system and brake failure.4. Electric hydraulic thrusters should regularly replace vulnerable parts to prevent rubber parts from aging, usually within 1-2 years.5. During maintenance and upkeep of electric hydraulic thrusters, the tightening torque of fasteners should be checked at all times to prevent loosening.Block brake is a brake that uses the cylindrical surface inside the brake pad assembly of an electric hydraulic actuator as the contact surface of the friction pair.Block brakes are divided into short stroke block brakes and long stroke block brakes based on the length of the control device strokeThe magnet of the short stroke block brake is directly installed on the brake arm. During operation, the moving iron core rotates around the pin shaft to achieve brake release; When the magnet is powered off, it is tightly closed by the main spring. This type of brake has a compact structure, with fast tightening and releasing actions, but high impact force.Structure and performance comparison of electro-hydraulic thrusters, brake high-tech research institute, electro-hydraulic thrusters are mainly used as block brakes, disk brake drive devices, and are widely used in the braking of various mechanical equipment such as cranes, belt conveyors, winches, etc. If the electric control and lever mechanism are used to make it realize the action of jacking, reciprocating, rocking and other forms of motion, it can also be used more, The current electric hydraulic thrusters produced in China, in addition to the YT type double rod series thrusters launched by Shanghai Crane Electrical Factory in the 1960s, there are also ED type single push rod series products imported from German EMC company by the original Jiaozuo Brake Factory in the 1980s. The hydraulic brake seat is equipped with a high-pressure oil inlet, a lubrication oil inlet, and a lubrication oil outlet. The new hydraulic brake seat is rotatably equipped with a spline shaft, which is connected to the dynamic friction plate spline, and the spacing between the dynamic and static friction plates is set;The front end face of the piston is in contact with the static friction plate, the front end of the spring is pressed against the rear end face of the piston, and the rear end of the spring is pressed against the positioning plate. The positioning plate is connected to the brake seat through a snap ring, and the connection between the piston and the brake seat is equipped with a sealing ring.

time：2021-04-08

YP1 YP11 series electric hydraulic arm disc brake1、 Product IntroductionYP series electric hydraulic arm disc brakeIt is a high-performance, multifunctional, and basically maintenance-free product. Its interlocking back distance equalization device can ensure equal back distance of the tiles on both sides, and there is no need to adjust during use; The automatic tile following device can prevent the tile from floating on the brake disc; The automatic compensation device for pad wear can maintain a constant distance between the pads and the braking torque during use, avoiding the trouble of frequent adjustment; Manually opening the device can facilitate installation, maintenance, and release the brake in emergency situations; The plug-in brake pad makes replacement faster; Various limit switches can also be installed as needed, controlled by PLC to achieve auxiliary functions such as fault display (interlocking) and pad wear indication (interlocking).The YP series brakes can be widely used for deceleration, parking braking, and safety protection of mechanical equipment in industries such as lifting, belt transportation, port loading and unloading, metallurgy, mining, and construction.The installation and connection dimensions of the YP series brakes comply with JB/T 7020 and DIN15435 standards, and can be interchangeably installed with YP series brakes of the same specifications.2、 Performance characteristics1. The main swing hinge points of the brake frame are equipped with self-lubricating bearings, which have high transmission efficiency, flexible and reliable action, long service life, and no need for lubrication during use;2. The brake pad adopts a key connected plug-in structure, bolted connection, convenient and fast installation and replacement. The friction material adopts copper based powder metallurgy high-performance friction material, with long service life, stable friction coefficient, and good environmental applicability;3. The brake spring is arranged inside the square tube and a torque scale is installed on the outer wall of the spring tube, making it convenient to adjust and read the brake torque;4. The driving device is the Ed series electric hydraulic thruster, which adopts a fully sealed single push rod structure, a high-pressure cast aluminum alloy casing, a non immersed motor, and F-class insulation; IP54 protection level; The seals and bearings are all from internationally renowned brands, with excellent performance and long service life;5. All non main load-bearing bolt connections are made of stainless steel, and the pins are treated with anti-corrosion surface strengthening such as hard chromium plating or made of stainless steel material, which has good anti-corrosion performance;6. The brake has an interlocking backoff equal device, which can ensure equal backoff of both sides of the tiles; The brake pad is equipped with an automatic follow-up device, which can completely avoid the phenomenon of the brake pad floating against the brake disc;7. The brake is equipped with an automatic compensation device for pad wear, which keeps the pad setback and braking torque constant during use, avoiding the trouble of frequent adjustment.8. The brake is equipped with a manual opening device as standard, which can manually release (open) the brake.9. The brake is equipped with a detection switch for the open (open) position as standard, facilitating automatic online control. In addition, a pad wear limit position detection switch, a closed (upper) limit switch, and a manual open limit switch are also provided. Users can choose according to the working conditions. Huawu YP1 diagramSpecific production model:YT1, ED, YTD. series electric hydraulic thrustersJZ, MW, TJ2, ZWZA, ZWZ3 series electromagnetic brakesYWZ, YWZ3, YWZ4, YWZ5, YWZ8, YWZ10, YWZ9, YWZ13, YW series electric hydraulic brakesQP, CQP series pneumatic caliper disc brakeDCPZ series electromagnetic caliper disc brakeYPZ YP series electric hydraulic arm disc brakeSBD series safety brakeSH, ST series hydraulic failure protection brakeDADH series hydraulic direct acting brakeSE series electromagnetic failure protection brakeSP series pneumatic failure protection brakeYFX, YDGZ, YLBZ, Series Windproof Brakes

time：2021-04-08