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A hydraulic control system for self-weight compensation hydraulic test bench

A hydraulic control system and hydraulic test technology, which is applied in fluid pressure actuation system testing, mechanical component testing, fluid pressure actuation devices, etc., can solve problems such as large friction, cylinder pulling, leakage, etc., and achieve easy installation , low detection cost and simple structure

Active Publication Date: 2020-10-13
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve problems such as cylinder scuffing and leakage caused by the large frictional force caused by the influence of self-weight when the existing hydraulic cylinder is horizontally hinged, the invention discloses a hydraulic control system of a self-weight-compensated hydraulic test bench. According to the test The mechanical structure principle of the table can detect the anti-self-weight performance of hydraulic cylinders of different specifications at different hinge point positions, load positions and support positions, and horizontal hinged installation, and improve the service life and safety of hydraulic cylinder cylinders

Method used

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  • A hydraulic control system for self-weight compensation hydraulic test bench
  • A hydraulic control system for self-weight compensation hydraulic test bench
  • A hydraulic control system for self-weight compensation hydraulic test bench

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Experimental program
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Embodiment 1

[0037] Such as Figure 1-5 The hydraulic control system of the self-weight compensation hydraulic test bench shown includes: the tested horizontal hydraulic cylinder 1, the support hydraulic cylinder 13 for hinged connection with the bottom of the tested horizontal hydraulic cylinder 1, the load hydraulic cylinder 7, the fuel tank 19, and the hydraulic pump 20. Motor 21, filter 22, shaft coupling 23, controller 25, hydraulic control system; the controller 25 is a PLC controller, and the hydraulic pump 20, under the action of the motor 21, extracts oil from the oil tank 19 through After filtering by the filter 22, oil is supplied to the horizontal hydraulic cylinder 1, the load hydraulic cylinder 7, and the support hydraulic cylinder 13 respectively, and the signal monitored by the hydraulic control system is transmitted to the controller 25, and the output signal of the controller 25 is then transmitted to the hydraulic control system. system;

[0038] The hydraulic control s...

Embodiment 2

[0049] Such as figure 1 with 6 As shown in -9, on the basis of Embodiment 1, the hydraulic control system of the self-weight compensation hydraulic test bench can also include a host computer 24, and the host computer 24 is electrically connected to the controller 25, and the model of the controller is dSPACE, and the host computer The computer is a computer, of course the controller can also be a PLC controller, and the upper computer can also be an industrial computer.

[0050] The hydraulic control system of the present invention includes: horizontal hydraulic cylinder circuit proportional reversing valve 3, horizontal hydraulic cylinder rodless cavity pressure sensor 4, horizontal hydraulic cylinder rod cavity pressure sensor 5, horizontal hydraulic cylinder displacement sensor 6, load Hydraulic cylinder circuit proportional overflow valve 8, load hydraulic cylinder proportional reversing valve 9, load hydraulic cylinder rodless cavity pressure sensor 10, load hydraulic c...

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Abstract

The invention discloses a hydraulic control system of a self-weight compensation hydraulic test bed. The hydraulic control system is characterized by comprising a to-be-detected horizontal hydraulic cylinder, a supporting hydraulic cylinder, a load hydraulic cylinder, an oil tank, a hydraulic pump, a motor, a filter, a coupler, a controller and hydraulic control systems; under the action of a motor, oil pumped out by the hydraulic pump from the oil tank is filtered by the filter, and then is respectively supplied to the horizontal hydraulic cylinder, the load hydraulic cylinder and the supporting hydraulic cylinder; signals monitored by the hydraulic control systems are transmitted to the controller; and output signals of the controller are transmitted to the hydraulic control system body.According to the mechanical structure principle of the test bed, the self-weight resistance performance of the hydraulic cylinders with different specifications in different hinge point positions, load positions and supporting positions when hinged installed horizontally can be detected, the service life of the hydraulic cylinder bodies is prolonged, and the safety of the hydraulic cylinder bodies is improved.

Description

technical field [0001] The invention belongs to the technical field of hydraulic control, and relates to a hydraulic control system of a self-weight compensation hydraulic test bench, which can be widely used in the field of hydraulic cylinder performance detection. Background technique [0002] The hydraulic cylinder is an important actuator of the hydraulic system, and its performance directly affects the stability of the entire hydraulic system. In some special fields, the hydraulic cylinder needs to be installed in a horizontal hinge to achieve the purpose of outputting curved force. However, when the hydraulic cylinder is installed horizontally and hingedly, the horizontal hydraulic cylinder will tilt backward due to its excessive weight, which will generate a large friction force between the piston rod and the cylinder body, and it is not only impossible to accurately judge the performance of the hydraulic cylinder in this installation method , and it is easy to damage...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/16F15B19/00G01M13/00
CPCF15B11/16G01M13/00
Inventor 黄庆学赵晓冬马丽楠杨小星张文泽
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY