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Testing system for positive and negative rotation performance of closed type hydraulic pump

A test system, hydraulic pump technology, applied in pump test, liquid variable capacity machinery, machine/engine, etc., to achieve the effect of convenient operation and wide range of test purposes

Active Publication Date: 2015-03-25
SHANGHAI ELECTRICAL HYDRAULICS & PNEUMATICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current test system is difficult to meet the above requirements

Method used

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  • Testing system for positive and negative rotation performance of closed type hydraulic pump

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Embodiment Construction

[0020] Such as figure 1 As shown, the forward and reverse performance test system of the closed hydraulic pump of the present invention includes a main oil tank 100 , a first test oil circuit 300 , a second test oil circuit 400 , a bridge circuit 500 and an oil drain circuit 600 .

[0021] The bridge circuit 500 is composed of four first one-way valves F1, second one-way valve F2, third one-way valve F3, and fourth one-way valve F4 connected in sequence to form a closed circuit structure, wherein the adjacent one-way valves The first node J1, the second node J2, the third node J3, and the fourth node J4 are sequentially formed between them.

[0022] The first test oil circuit 300 includes a first flow meter L1, a first stop valve K1, a first temperature sensor W1, and a first pressure sensor P1. Wherein, one end of the first flow meter L1 is connected to the first main oil port of the product pump under test, and the other end is connected to the first cut-off valve K1. The ...

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Abstract

The invention discloses a testing system for the positive and negative rotation performance of a closed type hydraulic pump. The testing system comprises a main oil tank, a first testing oil path, a second testing oil path, a bridge type loop, a leakage oil path, a control oil path and a pressure oil supply path; the bridge type loop is of a closed type loop structure formed by connecting a first one-way valve, a second one-way valve, a third one-way valve and a fourth one-way valve in sequence; a first joint, a second joint, a third joint and a fourth joint are sequentially formed between the adjacent one-way valves. The testing system can test the flow, pressure and temperature when the closed type hydraulic product pump runs, can also carry out impact and positive and negative rotation tests on the hydraulic product pump, and has the advantages of being wide in testing purpose, convenient to operate and the like.

Description

technical field [0001] The invention belongs to the technical field of hydraulic product detection, and relates to a forward and reverse performance test system of a closed hydraulic pump. Background technique [0002] The hydraulic pump is the power component of the hydraulic system. It is driven by an engine or an electric motor. It sucks oil from the hydraulic oil tank, forms pressure oil and discharges it, and sends it to the actuator. The closed hydraulic pump adopts the pressure oil supply method when it is working. After the closed hydraulic pump is manufactured, it is necessary to test the working performance of the pump, such as testing the pressure, temperature, flow rate and performance of the oil circuit under impact and positive rotation. However, the current test system is difficult to meet the above requirements. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a closed hydraulic pump forward and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B51/00
Inventor 陈俊龙陈烨王宗胜
Owner SHANGHAI ELECTRICAL HYDRAULICS & PNEUMATICS
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