How to Solve the Serious Noise Problem of Vane Pump?


There are many noise problems encountered during the us […]

There are many noise problems encountered during the use of vane pump. Sometimes, if it is only a small noise, there may not be a big problem. However, if there is a serious noise problem, we have to pay attention to it. Here we will tell you in detail how we should deal with it if there is a serious noise.

1. The triangular relief groove at the pressure chamber of the oil distribution plate of the vane pump is too short, resulting in oil trapping and local pressure rise. The chamfer at the top of the blade is too small, and the force acting on the blade changes abruptly when the blade moves. The tolerance of blade height dimension is not strictly controlled, resulting in unequal height of blades.

2. The inner curved surface of the stator is scratched or seriously worn. The end face of the oil distribution plate is not perpendicular to the inner hole or the blades are not perpendicular.

3, the hydraulic oil pump oil level is too low, the salary is too high, oil absorption is not smooth. The oil suction opening is not tightly closed, and air is sucked into the pump.

4. The skeleton oil seal in the end cover of the right pump body presses the transmission shaft too tightly. The coaxiality between hydraulic oil pump and motor is seriously out of tolerance. The coupling between the hydraulic oil pump and the motor is not installed properly, which causes impact and vibration during operation.

5. The motor speed is too high or exceeds the rated speed of the hydraulic oil pump. The hydraulic oil pump works under overload pressure.

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