Hydraulic cylinder test bench load simulation device and control method thereof

A technology of load simulation and hydraulic cylinder, which is applied in the direction of fluid pressure actuation device, fluid pressure actuation system test, mechanical equipment, etc., can solve the problems of low test standard, low degree of intelligence, low degree of automation, etc. The effect of spare power and interference, improving detection accuracy, and avoiding errors caused by human participation
CN103775437AActive Publication Date: 2014-05-07NANJING UNIV OF SCI & TECH +1
9 Cites 34 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Publication Date
2014-05-07

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a hydraulic cylinder test bench load simulation device and a control method thereof. The hydraulic cylinder test bench load simulation device comprises a test bench frame, a control system, a loading hydraulic cylinder and a tested hydraulic cylinder, wherein the control system comprises an industrial personal computer, a PLC (programmable logic controller), a positional system control module and a loading system control module, the industrial personal computer sends a displacement signal to the PLC to drive the tested hydraulic cylinder to run, a displacement sensor detects the displacement signal of the tested hydraulic cylinder, the displacement sensor feeds the displacement signal back to the positional system control module so as to adjust displacement of the tested hydraulic cylinder on the one hand, and sends the displacement signal to the industrial personal computer on the other hand, the industrial personal computer converts the displacement signal into a simulation resultant force signal, and sends the simulation resultant force signal to the loading system control module so as to drive the loading hydraulic cylinder to perform opposite vertex loading on the tested hydraulic cylinder, and simultaneously a pull pressure sensor detects a pull pressure signal, and feeds the pull pressure signal back to the loading system control module after comparing the pull pressure signal with the simulation resultant force signal so as to form force negative feedback control. The hydraulic cylinder test bench load simulation device and the control method thereof achieve high automation of the hydraulic cylinder test bench load simulation device, and is high in accuracy and strong in practicability.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of hydraulic cylinder performance testing, in particular to a hydraulic cylinder test bench load simulation device and a control method thereof. Background technique

[0002] The existing hydraulic cylinder test benches are all in the factory test stage, and the accuracy is not high, the degree of automation is not high, and the degree of intelligence is low, especially there is no real high-precision test bench. The current hydraulic cylinder test bench is mainly tested by manual operation methods, the test standards are low, the test methods are inconsistent, the test data is unreal, and the efficiency is low.

[0003] The Chinese patent "Hydraulic Cylinder Test Bench" (application number: 201220592421.4, application date: 2012-11-12) discloses a hydraulic pressure control system through the pressure adjustment of the electromagnetic relief valve and the remote pressure regulating valve, as well as the direction con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More