Jiaozuo brake

Hydraulic brakes for belt conveyors

The 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 products

YWZ5-630/301 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 workshop

Electric 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 disc

Hydraulic 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