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Flexible loading system of friction and wear testing machine

A flexible loading system, friction and wear test technology, applied in the direction of testing wear resistance, strength characteristics, measuring devices, etc., can solve the system can not be loaded steplessly, load pop and other problems, to solve the impact problem, expand the test range, The effect of reducing labor intensity

Inactive Publication Date: 2011-11-02
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the deficiencies of the existing technical problems, provide an electro-hydraulic servo automation control scheme for friction and wear testing, improve the existing loading method, and solve the problems that the existing system cannot be loaded steplessly and the load pops

Method used

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  • Flexible loading system of friction and wear testing machine
  • Flexible loading system of friction and wear testing machine

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Embodiment Construction

[0018] As shown in the figure, a flexible loading system of a friction and wear testing machine includes a frame 1, a loading cylinder 2, a servo valve 3, a displacement sensor 4, a load sensor 5, a torque sensor 6, a friction disc 7, a friction pin 8, Guide device 9, hydraulic system and servo controller; loading oil cylinder 2 is horizontally arranged on the frame 1, the piston rod 10 of loading oil cylinder 2 is a hollow structure, the piston rod 10 runs through the cylinder body of loading oil cylinder 2, and one end of the piston rod 10 is arranged There is a displacement sensor 4, the other end of which is connected to the load sensor 5. The displacement sensor 4 is a differential transformer type displacement sensor. The shell of the displacement sensor 4 is fixed on the frame 1. The measuring iron core 11 of the displacement sensor 4 passes through the piston rod 10 and the The load sensor 5 is connected; the friction pin 8 is set on the load sensor 5, the friction dis...

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Abstract

The invention relates to a flexible loading system of a friction and wear testing machine. The system is characterized in that: a loading oil cylinder is horizontally arranged, a piston rod passes through a body of the loading oil cylinder, a displacement sensor is arranged on one end of the piston rod, a load sensor is connected with the other end of the piston rod, a housing of the displacementsensor is fixed on a frame, and a measurement iron core is connected with the load sensor by passing through the piston rod; a friction pin is arranged on the load sensor, a friction disc and the friction pin are relatively arranged, and the friction disc is connected with a variable frequency motor through a driving shaft and a torque sensor; the loading oil cylinder is communicated with a hydraulic system through a servo valve, the displacement sensor and the load sensor are connected with a servo controller, and the servo controller is connected with the servo valve; and a guide rod is arranged in parallel with the load oil cylinder, and the load sensor is fixedly connected with a slide block of the guide rod. The system allows the labor intensity of operators to be reduced, the load value to be continuously variable, stepless loading of loads to be realized, impact problems of loading of original systems to be solved, and the loading stability to be substantially raised.

Description

technical field [0001] The invention relates to an electro-hydraulic servo automatic control system of a friction and wear testing machine, in particular to a loading system for the friction and wear testing machine. Background technique [0002] The loading system of the existing friction and wear testing machine mostly uses a combination of weights, levers and spring buffer devices. The loading force value is adjusted by weights and levers. When the friction surface is uneven, the vibration of the force value is absorbed by the spring. The advantage of this method is that the quality of the weight is constant and does not change with environmental changes such as time, temperature, and humidity. Its disadvantage is that when the load is changed, when the weight is increased or decreased, there will be an impact on the force value, and this device cannot realize the stepless change of the load, and the load pop cannot be realized during the test. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/02G01N3/56
Inventor 孙乐民逯志坚张永振上官宝
Owner HENAN UNIV OF SCI & TECH
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