What are the reasons for the noise of the hydraulic press

1. The relief valve is unstable, such as due to improper combination of the slide valve and the valve hole or the contact between the cone valve and the seat is stuck with dirt, the damping hole is blocked, the spring is skewed or

Failure causes the spool to jam or move inefficiently in the valve hole, causing system pressure fluctuation and noise. In this regard, attention should be paid to cleaning and dredging Yin hole; Check the relief valve, if found

If there is damage, or if the wear exceeds the regulations, it should be repaired or replaced in time;

2 Hydraulic pump or hydraulic motor quality is not good, is usually the main part of the hydraulic transmission noise. The manufacturing quality of the hydraulic pump of the small hydraulic machine is not good, and the accuracy is not consistent

In accordance with the technical requirements, the pressure and flow fluctuation, the oil trapping phenomenon is not well eliminated, the sealing is not good, and the bearing quality is poor, which are the main reasons for the noise. In use, by

The hydraulic pump parts wear, the gap is too large, the flow is insufficient, and the pressure is easy to fluctuate, which will also cause noise. In the face of the above reasons, one is to choose a good quality hydraulic pump or hydraulic motor