The abnormal and unstable flow of the hydraulic station refers to three common situations: no flow into the actuator, insufficient flow of the supply actuator, and excessive flow into the actuator. So how to solve this problem?
No flow in 1. hydraulic station
(1) If the solenoid of the reversing valve installed in the hydraulic station is loose and the coil is short-circuited, the reversing valve can be directly replaced or repaired.
(2) The hydraulic oil of the hydraulic station is contaminated and the valve core is stuck. Replace all the hydraulic oil with clean hydraulic oil. At the same time, the stuck valve can only be replaced or repaired.
(3)M, H type function slide valve is not reversed. Reverse them and readjust them.
2. hydraulic station flow is too high
(1) the hydraulic station flow control device is too high. This is the opposite of what is said above. On the contrary, if you set it too high, turn it down.
(2) The normal adjustment of the variable pump of the hydraulic station is invalid. There is a deviation in the design of the hydraulic station, which can only be replaced or repaired.
Causes of abnormal flow in hydraulic station
(3) hydraulic pump type and motor speed is not correct. Replacement can reach the flow of hydraulic oil pump and speed of the motor can be reached.
To sum up, when the hydraulic actuator cannot work normally, the hydraulic manufacturer Kerui recommends that everyone find the cause of the failure by the working parameter of flow and eliminate the symptoms.
3. hydraulic station flow is too low
Low flow rate of hydraulic station is a common problem of unstable flow rate of hydraulic station. The cause is more.
(1) hydraulic system control hydraulic pump flow relief valve or unloading valve pressure is too low. Increase the pressure.
(2) The bypass control valve in the hydraulic station is not very tight. Either replace the valve or check the control circuit of the hydraulic station flow.
(3) The volumetric efficiency of the hydraulic oil pump is reduced. This can replace the hydraulic oil pump and exhaust the air in the hydraulic oil pump.
(4) Serious leakage in the hydraulic station. This machine is mainly used for hydraulic pump, hydraulic valve, oil pipe, motor, oil circuit block, oil seal, seal without connecting fasteners, etc.
(5) The normal adjustment of the variable pump of the hydraulic station is invalid. Replace the hydraulic oil pump.
(6) the hydraulic loss along the hydraulic station is very large. This can replace the large No. 1 pipe, which can increase the pressure of the pump.