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Reliability test method and device for axial plunger pump and axial plunger motor

A technology of axial piston motor and axial piston pump, which is applied in the direction of fluid pressure actuation device, fluid pressure actuation system test, mechanical equipment, etc. It can solve the problems of high energy consumption, less samples, and large investment. Achieve the effect of reducing test time and increasing test samples

Inactive Publication Date: 2014-01-15
YANSHAN UNIV
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Problems solved by technology

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

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  • Reliability test method and device for axial plunger pump and axial plunger motor

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Experimental program
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Effect test

Embodiment Construction

[0010] Axial piston pump and motor reliability test method, combined with figure 1 , the tested axial piston pump 4 outputs pressure oil under the drive of the frequency conversion motor 8, and the tested axial piston motor 10 drives the frequency conversion motor 8 to rotate under the drive of pressure oil to complete power recovery; the electromagnetic overflow valve 13 is the hydraulic system pressurization; the axial piston pump 4 and the axial piston motor 10 are all used as the tested objects; Four sets of pressure, temperature sensors and flowmeters, and the torque tachometer 6 installed at the input shaft of the tested axial piston pump 4 collect relevant data, and calculate the axial column according to the collected data and related calculation formulas. Reliability parameters of plug pumps and motors.

[0011] refer to figure 1 , carry out the reliability test on the hydraulic axial piston pump and motor through the reliability test hydraulic system device, the hy...

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Abstract

The invention discloses a reliability test method and device for an axial plunger pump and an axial plunger motor. According to a test system, the first shaft of a variable-frequency motor is connected with a torque rotational speed meter in an extension mode, and the torque rotational speed meter is connected with the tested axial plunger pump. The tested axial plunger motor is connected with the second shaft of the variable-frequency motor in an extension mode. An oil outlet of the tested axial plunger pump is connected with an oil inlet of the tested axial plunger motor. A pressure sensor, a temperature sensor, an electromagnetic relief valve and a flow meter are arranged on a pipeline connecting the oil inlet of the tested axial plunger motor and an oil tank. Pressure sensors, temperature sensors and flow meters are arranged on the tested axial plunger pump, a motor leakage oil circuit and an oil outlet circuit of the tested axial plunger motor. According to the reliability test method and device for the axial plunger pump and the axial plunger motor, a frequency conversion and power recovery technology is used, reliability test time is shortened, reliability test samples are increased, and electric energy losses are reduced.

Description

technical field [0001] The invention relates to a test method for measuring reliability indexes of hydraulic pumps and motors. The invention also relates to a hydraulic system device implementing the method. 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 object of the present invention is to provide an axial piston pump and motor reliability test method and device using frequency conversion and power recovery technology to solve the problems of long reliability test t...

Claims

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Application Information

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IPC IPC(8): F15B19/00
Inventor 郭锐赵静一张明星李伟
Owner YANSHAN UNIV
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