How to solve the fault of the slider of the four-column hydraulic press

How to solve the fault of the slider of the four-column hydraulic press

WORLD Press Machine Machinery Manufacturing Co., Ltd. is located in Shanghai, mainly engaged in hydraulic equipment and automation equipment. As a mature product in the market, the hydraulic press is committed to the research and development, design, manufacture and after-sales of small and medium-sized hydraulic equipment in various industries. Tailor-made for users: energy-saving, exquisite and durable hydraulic equipment, the company has its own research and development team, and can provide solutions according to the parameters, process and working conditions of users' own products. Troubleshooting for the return stroke of the four-column hydraulic press:

1. Due to the wear of the cylinder block, swash plate, plunger, slipper, oil distribution plate and other parts of the plunger pump of the four-column hydraulic press, the internal leakage of the pump is serious, and the volumetric efficiency decreases, so that the output flow of the pump cannot reach the set value. Remedy: Repair all parts, ensure that the plunger slides flexibly in the cylinder hole, and the matching clearance should be ≤0.06mm. The spherical surface of the sliding shoe cooperates well with the plunger ball, the direction of rotation is flexible, and the small hole in the middle of the sliding shoe is kept unobstructed. Eliminate the friction surface burrs between the shoe surface and the swash plate.

2. The sliding valve is worn and the clearance is too large, which causes the action of the pressure compensation variable mechanism of the plunger pump to fail. Remedy: The gap between the piston of the variable mechanism and the spool valve should be repaired to ensure that the gap is less than or equal to 0.008mm.

When the slider of the four-column hydraulic press cannot return, first check whether the return solenoid valve is stuck. Remedy: The return plug-in control pilot solenoid valve does not work, and the system pressure is very high at this time, check the solenoid valve. Look again at the support valve pilot high pressure relief valve pressure is too low. Remedy: Check whether the pressure of the four-column press is too low, check the filling valve, and then check that the support oil-draining plug-in is stuck. Remedy: Check whether the valve is stuck, and whether there is debris on the annular contact surface of the valve core and the valve sleeve. , whether the middle hole is blocked. This article comes from the hydraulic manufacturer WORLD Press Machine official website www.pressmachine-world.com, please indicate the source for reprinting!

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