Common faults and troubleshooting of four-column hydraulic press motors

Common faults and troubleshooting of four-column hydraulic press motors

The design of the four-column hydraulic press adopts four-column open space, which can be suitable for the processing of different products. The working height and the size of the working surface can be made according to product requirements. The circuit design of the four-column hydraulic press is simple, the horsepower requirement is small, and the maintenance is easy. How to solve the common faults in the process of use? The following is the answer from the hydraulic press manufacturer WORLD Press Machine:

1. Low output speed

Cause analysis: The end face clearance and radial clearance of the four-column hydraulic press motor are too large, the oil viscosity is too small, and the matching parts are seriously worn. Bypass is formed, such as the failure of the overflow valve.

The key problem: serious oil leakage and low oil supply.

Remedy: Oil pressure viscosity, pump speed, etc. should meet the specified requirements, check the fitting clearance of the hydraulic motor, and repair the relief valve and other components.

2. Low output torque

Cause analysis: The end face clearance of the hydraulic motor of the four-column hydraulic press is too large or the matching parts are seriously worn, the oil supply is insufficient or bypassed, and the overflow valve is out of order.

The key problem: the leakage of the sealing volume, which affects the pressure increase, and the pressure regulation is too low.

Remedy: Check the fitting clearance of the hydraulic motor or replace the parts, check the components such as the pump and the relief valve, and make the oil supply pressure normal.

3. Excessive noise

Reason analysis: The manufacturing precision of the hydraulic motor is not high, such as the tooth profile accuracy, contact accuracy, verticality between the inner hole and the end face, and matching clearance of the gear hydraulic motor. Individual parts are damaged, such as bearing cages, needle rollers of needle roller bearings are broken, torsion springs are deformed, and the inner surface of the stator is scratched. The coupling is loose or the coaxiality is poor, the pipe joint is leaking, and the oil filter is blocked.

Key issue: Noise is related to vibration, mainly composed of mechanical noise, fluid noise and air noise.

Remedy: Improve the manufacturing accuracy of the four-column hydraulic press motor, repair or replace damaged parts, reinstall the coupling, and the connections of pipe fittings should be tight, and the oil filter should be cleaned frequently. This article is from the official website of the manufacturer WORLD Press Machine www.pressmachine-world.com, please indicate the source for reprinting!

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