A reliability test method for axial piston pump and motor

Abstract

The invention discloses a reliability test method of an axial plunger pump and a motor, which uses a reliability test hydraulic system device to conduct a reliability test on a hydraulic axial plunger pump and a motor, and the tested axial plunger pump is driven by a variable frequency motor. Under the pressure oil output, the tested axial piston motor is driven by the pressure oil to drive the variable frequency motor to rotate to complete the power recovery; the electromagnetic overflow valve pressurizes the hydraulic system; the axial piston pump and the axial piston motor are both used as the tested The test object; during the test, with the help of several pressure and temperature sensors and flow meters installed on the corresponding pipelines of the tested axial piston pump and the tested axial piston motor, and the input shaft of the tested axial piston pump The torque tachometer installed at the site collects relevant data; finally, according to the collected data and related calculation formulas, the reliability parameters of the axial piston pump and motor are calculated. The invention applies frequency conversion and power recovery technology to reduce reliability test time, increase reliability test samples and reduce power consumption.

Description

technical field [0001] The invention relates to a test method for measuring reliability indexes of hydraulic pumps and motors. Background technique [0002] Hydraulic pumps and motors are widely used as important components of hydraulic systems, but their reliability is a weak link. In order to ensure the quality of hydraulic pumps and motors, it is very necessary to conduct reliability tests on hydraulic pumps and motors. Due to the lack of corresponding reliability test standards, time-consuming and high cost, many companies only do corresponding type tests and factory tests for hydraulic pumps and motors, but do not do reliability tests. Contents of the invention [0003] The purpose of the present invention is to provide an axial piston pump and motor reliability test method using frequency conversion and power recovery technology to solve the problems of long reliability test time, few samples, large investment, and high energy consumption of axial piston pumps and mo...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an axial piston pump and motor reliability test method using frequency conversion and power recovery technology to solve the problems of long reliability test time, few samples, large investment, and high energy consumption of axial piston pumps and motors. The problem

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