Consequences of Excessive End Clearance of Hydraulic Motor of Four-column Hydraulic Press

Consequences of Excessive End Clearance of Hydraulic Motor of Four-column Hydraulic Press

1. Low output speed

Reason 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 severely worn. Bypass is formed, such as the failure of the overflow valve. The coupling is loose or the coaxiality is poor, the pipe joint is leaking, and the oil filter is blocked.

Remedy measures: Improve the manufacturing accuracy of the four-column hydraulic press motor, inspect or replace damaged parts, reinstall the coupling, and the connections such as pipe fittings should be tight, and the oil filter should be cleaned frequently.

Key problem: The leakage of the sealing volume affects the pressure progress, and the pressure regulation is too low.

Key topic: The oil spill is severe and the fuel supply is small. 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. 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.

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 severely worn, the oil supply is insufficient or bypassed, and the overflow valve is out of order.

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.

Key topic: Noise is related to vibration and is mainly composed of three major departments: mechanical noise, fluid noise and air noise.

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