Single-column hydraulic oil channel failure phenomena and solutions

1. The oil pipeline of the gasoline pump of the single-column hydraulic machine is insufficient, and the inlet hydraulic oil of the hydraulic cylinder leaks.

Solution: Clean the leakage point of the oil pipeline immediately, check the sealing status of the speed control valve, poppet valve and high-pressure gate valve. If leakage is caused by poor sealing, relevant sealing work should be done.

2. The pipeline resistance gas pressure and back pressure resistance on the hydraulic pump oil path are too large, and the hydraulic oil flows from the speed control valve to the speed control valve of the oil tank to increase, so that the user cannot reach the required speed.

Solution: The oil inlet pipe should not be too thin. The size of the pipe is generally calculated according to the flow velocity in the pipe. The rate is generally 3-4ml/s. Thereby reducing the bending of the pipe. The work pressure cannot be too high.

3. Serious leakage occurs in the structure of the hydraulic cylinder, in which leakage is dominant. When the relative speed decreases due to the different position of the stroke, it is mainly due to the increase in the movement resistance of the hydraulic cylinder body. caused.

Solution: Find out the specific location of the leak, deal with it in time, and at the same time improve the relative density of parts processing and the quality of the equipment.

4. The internal structure of the hydraulic cylinder has low oil pressure and vibration damping.

Solution: Disassemble and assemble the hydraulic cylinder of the single-column hydraulic machine, clean the internal structure, and then install it in its original state.