Development Trend of Industrial Electric Hydraulic Pushrod BrakesWith the development of equipment towards large-scale and ultra large-scale, as well as efficient automation, brakes are rapidly developing towards heavy-duty, multifunctional, intelligent, and maintenance free braking conditions. The overloading of braking conditions is to meet the matching braking requirements of large and ultra large heavy-duty mechanisms; Multi function mainly includes brake release interlocking function, manual release function, liner wear limit limit limit (interlocking) function, wear automatic compensation function, etc; Intelligence refers to the introduction of digital and computer technology into control systems; Maintenance-free refers to turning the manual adjustment function of the brake into an automatic adjustment function, while achieving high reliability of brake action and performance. In addition, achieving real-time maintenance of industrial brakes through remote monitoring is also an important development direction for brakes.With the rapid development of lifting and loading and unloading machinery towards large-scale and ultra large-scale, specialized and efficient, as well as semi-automatic and automated directions, the application of safety brakes has also been rapidly developed. At present, safety brakes have been widely used in large-scale port specialized loading and unloading machinery, and large-scale specialized lifting equipment (such as power station gantry cranes, casting cranes, cable cranes, etc.) and inclined belt conveyors are being promoted and applied.Multiple thrustersSpecific production model:YT1, ED, YTD.BYT1, BED, ED2, MYT1, ZED, DEd series electric hydraulic thrustersJZ, MW, TJ2, ZWZA, ZWZ3 series electromagnetic brakesYWZ, YWZ3, YWZ4, YWZ5, YWZ8, YWZ10, YWZ9, YWZ13, YW, YWL series electric hydraulic brakesBYWZ, BYWZ3, BYWZ4, BYWZ5, BYWZ8, BYWZ10, BYWZ9, BYWZ13, BYW series electric hydraulic brakesQP, CQP, QPC, CQPL, QPL, PDA series pneumatic caliper disc brakeDCPZ250, DCPZ300, DCPZ400 series electromagnetic caliper disc brakeYPZ2, YPZ3, YPZ1, YP series arm disc brakeSPZ symmetrical brake arm disc brakeSBD, SB series safety brakesSH, ST series hydraulic failure protection brakeDADH, ADH, ADP series hydraulic direct acting brakesSE series electromagnetic failure protection brakeSP series pneumatic failure protection brakeYFX, YDGZ, YLBZ, Series Windproof Wedge BrakesYQP hydraulic disc brakeElectric hydraulic thruster ED-23/5, thrust 220N, stroke 50mmElectric hydraulic thruster ED-30/5, thrust 300N, stroke 50mmElectric hydraulic thruster ED-50/6, thrust 500N, stroke 60mmElectric hydraulic thruster ED-80/6, thrust 800N, stroke 60mmElectric hydraulic thruster ED-121/6, thrust 1250N, stroke 60mmElectric hydraulic thruster ED-201/6, thrust 2000N, stroke 60mmElectric hydraulic thruster ED-301/5, thrust 3000N, stroke 60mmOil for electric hydraulic thrustersThe thruster has been equipped with hydraulic oil according to regulations when leaving the factory. If the thruster has been stored for a long time (more than 6 months), screw out the plug (see Figure 1) before use to check whether the oil level is normal. If the oil level does not reach the specified level, hydraulic oil should be added to the specified level (see Figure 1), otherwise the thruster cannot work properly. The hydraulic oil grade can be found in Table 2 (Mobil, Shell, and other hydraulic oils equivalent to the grade in the table can also be used), and the hydraulic oil filled must not contain impurities or dirt (it should be filtered). When adding hydraulic oil, the push rod should be slowly pulled up and down several times to remove air from the hydraulic cylinder and ensure sufficient oil is added.ambient temperature-25 ℃~+50 ℃ -45 ℃~+50 ℃Hydraulic oil grade DB-25 DTE-21 (Mobil) HL-10 YH-10 DB-45The hydraulic oil used in the hydraulic brake system is selected based on the working environment during system design, and the viscosity of the hydraulic oil is an important reference index. The weather in your area is relatively cold, which can affect the viscosity of the hydraulic oil. Therefore, a good solution is to ask the design manufacturer. Because the system is designed by them, the designer has the right to speak. I myself also study hydraulic design, But hello, don't use hydraulic oil indiscriminately. Because the hydraulic system is quite particular about using hydraulic oil
time:2021-04-04
MoreThere are many classifications of brakes, including type parking brakes, parking brakes, and motor brakes.So what is a motor brake, there's no need to say more. What are the functions of motor brakes?The electrode may be dragged by the load during parking and may occasionally be in a power generation state. Simply put, it is in a power generation state when the speed and torque direction are opposite. At this time, the motor will convert mechanical energy into electrical energy.Assuming that the equipment controlling the motor can only absorb energy from the grid and cannot send it back to the grid, the motor brake is needed to consume some of the remaining energy.When the brake motor is powered on, the motor and brake coil are energized together. At this moment, the magnetic disc of the brake overcomes the pressure of the tension spring and is attracted to the side of the magnetic pole group, causing the conflicting plate to detach from the brake plate, allowing the motor to start.When the power supply is cut off, the magnetic disc is pushed out by the tension spring due to the disappearance of the magnetic field, causing the conflict plate on the magnetic disc to collide with the brake plate, and quickly braking the motor.Some people may ask about the function of the brake and clutch on the motor.The brake is used to park the machine immediately after the power outage of the electric motor, so that the machine stops in the direction it should be stopped without causing too much erroneous travel. There are several types of clutches, such as separate clutches, which can separate some of the automatic transformation machinery from the forced transformation machinery. When operation is required, the clutch can be closed to operate, avoiding the harm caused by frequent starting of the motor. Another type is the overrunning clutch. It is a mechanical protection device that, when forced to overload some machinery, the overrunning clutch will slip, so as not to cause excessive damage to the machine
time:2021-01-10
MoreWhat is a brake? The brake is the brake or brake we talk about everyday. It is a Machine element that stops or decelerates moving parts in machinery.So what are the types of brakes? There are two types of brakes: hydraulic brakes and block brakes.The function of the brake is obvious and crucial, so what happens when the brake malfunctions?Below, we will analyze the common troubleshooting of hydraulic brakes.Hydraulic braking equipment transfers braking force by converting pedal force into hydraulic energy. Its transmission organization is simple, but the braking torque generated by the brake is linearly related to pedal force. If the adhesion between the tire and the road surface is met, the braking force experienced by the car is linearly related to pedal force. This function is called brake pedal feeling (commonly known as foot feeling), so the driver can directly feel whether various working conditions of the automobile brake equipment are normal, so as to quickly diagnose. Common faults in hydraulic braking systems include: ineffective braking, such as brake bite.1、 Brake failure1. Appearance: When the car is moving, quickly press the brake pedal to the bottom, and the car cannot immediately slow down or park. Its brakingThe deceleration is small and the braking interval is too long.2. Reason:(1) Excessive pedal free travel.(2) Lack of brake fluid in the brake master cylinder, or blockage of the compensation hole, aging, swelling, deformation, or overturning of the master cylinder cup and ring.(3) The brake master cylinder piston and cylinder body are excessively worn and loose, resulting in oil leakage, poor sealing of the return valve, and broken tension spring of the outlet valve.(4) The brake wheel cylinder cup is aged, swollen, and the piston is stuck, resulting in excessive wear and loose oil leakage between the wheel cylinder piston and the cylinder body.(5) The brake shoes are severely worn, and the brake clearance is too large or reversed.(6) The brake drum is out of round, grooved or worn too thin, the brake shoe surface has oil, burns and hardens, and rivets are exposed.(7) When air enters the hydraulic braking system or the temperature of the braking system is too high, the brake fluid in the pipeline vaporizes, forming an air lock.(8) The oil pipe is concave, the joint is loose and leaking, and the brake hose is aged, cracked, or blocked.
time:2021-01-10
MoreTroubleshooting methods for hydraulic brake noiseAfter the hydraulic brake produces noise, the material of the brake pad can be changed, and some softer and less dense ones can be selected to effectively reduce the noise; An anti noise pad can also be added between the brake caliper piston and the brake lining, creating a slight inclination of the piston and effectively reducing noise.
time:2021-01-10
MoreMaintenance process of hydraulic brakes1. Each shift shall check whether the thruster works normally, whether there is oil leakage, whether the constant oil level is maintained, whether there is insufficient travel, and whether the brake shoe smokes.2. Check the oil once every six months. When the oil deteriorates or gets mixed with debris, the oil should be changed. When refueling, pull the upper and lower push rods several times to exhaust air and add enough oil level. The oil level should not exceed the plug hole of the oil level indicator;3. The hydraulic oil used for the hydraulic brake is selected as follows: 10 # transformer oil is used when the ambient temperature is 0-20 ℃, 20 # transformer oil is used when the temperature is 20-45 ℃, and 25 # transformer oil is used when the temperature is -15-0 ℃.
time:2021-01-10
MoreMaintenance process of hydraulic brakes1. Each shift shall check whether the thruster works normally, whether there is oil leakage, whether the constant oil level is maintained, whether there is insufficient travel, and whether the brake shoe smokes.2. Check the oil once every six months. When the oil deteriorates or gets mixed with debris, the oil should be changed. When refueling, pull the upper and lower push rods several times to exhaust air and add enough oil level. The oil level should not exceed the plug hole of the oil level indicator;3. The hydraulic oil used for the hydraulic brake is selected as follows: 10 # transformer oil is used when the ambient temperature is 0-20 ℃, 20 # transformer oil is used when the temperature is 20-45 ℃, and 25 # transformer oil is used when the temperature is -15-0 ℃.
time:2021-01-10
MoreThree major characteristics of hydraulic brakes1. Compact structureAlthough the axial size of the hydraulic brake is small, the braking torque is sufficient.2. Quick responseThe hydraulic brake uses a spring device to form braking torque, and the spring reset time is the braking response time.3. Long lifespanHydraulic braking adopts new friction materials, which determine the performance of long service life.
time:2021-01-10
MoreBrake manufacturers briefly describe the main characteristics of brakes1. The main performance protection is reliable, the braking is smooth, and the action frequency is high;2. The main swing hinge points are equipped with self-lubricating bearings, which have high transmission efficiency and do not require lubrication during use;3. The brake spring is arranged inside the spring tube and is equipped with a brake torque scale on one side, making adjustment convenient and intuitive;4. Asbestos free brake pads and brake pads adopt a plug-in type, with reliable protection and convenient and fast replacement;5. Equipped with an interlocking equal distance device, it always maintains equal distance between the two sides of the pads during use, avoiding the phenomenon of one side of the brake pad floating against the brake wheel due to uneven distance.
time:2021-01-10
MoreThe recommended hydraulic oil for electric hydraulic thrusters is according to Table 6 based on different ambient medium temperatures. The surrounding medium temperature is+45 ℃~+21 ℃+20 ℃~+0 ℃+0 ℃~-15 ℃~-15 ℃~-30 ℃ - below 30 ℃. 20 # mechanical oil GB443-64, 10 # transformer oil (freezing point -10 ℃) SYB1351-62, 25 # transformer oil (freezing point -25 ℃) SYB1351-62, instrument oil (freezing point -60 ℃) GB487-65, a mixture of alcohol and glycerol, is recommended to use oil to connect the lower part of the hydraulic thruster with a pin, Connect the connecting rod of the crossbeam with the lever device using a pin shaft. After testing whether the external power supply matches the motor nameplate, correctly connect the motor terminal to the external power supply. Connect the power supply and check whether the impeller operates flexibly and whether the push rod lifts smoothly. 2. Use and maintenance: check whether the electric hydraulic thruster works normally and whether there is oil leakage or oil seepage. A constant amount of oil should be maintained.Mainly used as an operating component for the YWZ4, YWZ5, YWZ8, YWZ9, YWL.YW.YWZP series electric hydraulic block brakes. It is widely used in industries such as lifting transportation, metallurgy, mining, port electric hydraulic block brake ports, and construction.ED electric hydraulic thrusterEd23/5, Ed30/5, Ed50/6, Ed80/6, Ed121/6, Ed201/6, Ed23/5, Ed30/5, Ed50/6, Ed80/6, Ed121/6, Ed201/6, Ed301/6Z9 and Z4 pictures [if matched with the YWZ series brake, hold the brake]. YT1-18Z/2 YT125ZB/4 YT125ZC/4 YT1-45Z/4 YT1-45Z/5 YT1-45Z/6 YT1-90Z/6 YT1-90Z/8 YT1-125Z/10 YT1-180Z/8 YT1-180Z/10 YT1-180Z/12 YT1-320Z/12 (B) YT1-320Z/20 (A) YT1-320Z/35 YT1-350Z/12 YT1-350Z/20 YT1-350Z/35ED23/5- ED301/6 IV. Instructions for use: 1 Installation test: First, check whether the thrust on the nameplate of the electric hydraulic thruster product matches the required force: remove oil stains on the motor and body surface, and check whether the push rod lifting is smooth. Unscrew the oil filling plug 5 (Figure 3) and oil level plug 3, and inject suitable and pure hydraulic oil until the screw hole 3 is reached. Then tighten screw plug 3 and screw plug
time:2021-01-05
MoreThe brake manufacturer inventory the reasons why the brake cannot be used normally1. Insufficient lubricating oil in the brake causes an increase in brake friction and makes the brake insensitive.2. The sealing of the return valve is poor, and the tension spring of the outlet valve is broken, causing a decrease in the elasticity of the slewing bearing and resulting in inflexibility.3. The brake wheel cylinder cup is aged, swollen, and the piston is stuck, resulting in an inflexible braking effect.4. The brake shoes have excessive clearance, resulting in insensitive operation.5. The braking effect caused by the brake drum is not sensitive.6. The brake hydraulic system enters air, causing insufficient force in the hydraulic system.
time:2021-01-05
MoreA Brief Discussion on the Failure Forms of Brakes by Brake ManufacturersThe main manifestations of braking failures are: brake failure and lockup.1. Brake failureThe first thing that came to mind was a shortage of oil in the hydraulic pipeline. Check if there are any leaks in the brake wheel oil pump and oil pipe.2. Brake lockingThe brake cannot be opened. After dismantling, it was found that the brake was burnt out.
time:2021-01-04
MoreElectromagnetic brake is a connector that transmits the active side torque to the passive side, allowing for free combination, cutting, or braking as needed. It is called an electromagnetic clutch or brake due to the use of electromagnetic force for action. It has the advantages of fast response speed and simple structure, and is a widely used mechanical hardware equipment. Electromagnetic brakes are mainly outstanding in terms of performance: high-speed response, high durability, easy assembly and maintenance, no need for wear adjustment, reliable action, and torque adjustment.Electromagnetic brakes are mainly used in packaging and packaging machinery, such as packaging machines, bundling machines, packaging machinery, etc; Metal processing machinery: such as rolling machines, wire drawing machines, punching machines, welding machines, copper wall and iron wall wire return machines, cutting machines, pipe making machinery, winding machines, etc; Mechanical work: lathes, milling machines, automatic CNC machines, specialized machines, etc; Handling machinery: cranes, feeders, conveyors, winding machines, winches, etc; Paper machinery: bag making machine, cardboard box machine, slave cutter, book making machine, cutting machine, paper copying machine, etc; Printing machinery: rotary machines, feed printing machines, etc; Woodworking machinery: sawing machines, woodworking machines, plywood machines, etc; Business machinery: electronic copying machines, computers, fax machines, copper plate counting machines, printers, etc; Measuring machinery: testing machines, durability testing devices, measuring machines, etc; Food processing machinery: meat cutting machinery, cake making machinery, bottling machinery, noodle making machinery, etc; Other: reducers, electroplating devices, physical and chemical machinery, paper making machinery, resin processing machinery, etc.So, how do electromagnetic brakes need to be repaired and maintained? Remind you to pay attention to the following aspects: frequently add lubricant to the movable part of the electromagnetic brake, and regularly check the length of the armature stroke, as during the operation of the brake, the stroke length of the armature will increase due to wear on the cutting surface. When the length of the armature stroke cannot reach the normal value, adjustments must be made to restore the minimum clearance between the braking surface and the rotary table. If the stroke length of the armature increases above the normal value, it may greatly reduce the suction force. If a worn brake surface is replaced, the minimum clearance between the brake surface and the rotary table should be adjusted appropriately. 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. Regularly inspect the mechanical wear of movable components and remove dust, burrs, and dirt from the surface of electromagnetic components.
time:2020-12-29
More