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Rolling current-carrying friction abrasion tester

A technology of wear test and current-carrying friction, which is applied in the direction of testing wear resistance, etc., to prevent the temperature from being too high and prolong the test time

Active Publication Date: 2017-08-04
NANJING BIO INSPIRED INTELLIGENT TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a rolling current-carrying friction and wear testing machine and test method to solve the shortcomings of the prior art

Method used

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  • Rolling current-carrying friction abrasion tester
  • Rolling current-carrying friction abrasion tester

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Embodiment Construction

[0029] Through the following description of the embodiments, it will be more helpful for the public to understand the present invention, but the specific embodiments given by the applicant cannot and should not be regarded as limitations on the technical solutions of the present invention, any components or technical features Changes to the definition and / or formal but not substantive changes to the overall structure should be regarded as the scope of protection defined by the technical solutions of the present invention.

[0030] Such as figure 1 As shown, the main body of the rolling current-carrying friction and wear testing machine consists of a normal loading part 1, a moving shaft rolling platform 2, a fixed shaft rolling part 3, an air box 4, a wireless temperature measuring part 5, a liquid conductive part 6, a cooling and lubrication system, etc. components.

[0031] Such as figure 2 As shown, the normal loading part is used to load the normal force on the friction...

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Abstract

The invention discloses a rolling current-carrying friction abrasion tester which comprises a normal loading component, a moving-axis rolling platform, a fixed-axis rolling component, a liquid conductive component, a wireless temperature measuring component, a cooling and lubricating system and an atmosphere box. By adopting a servo motor as a power source, normal loading closed-loop control is provided and normal loading is accurately controlled; rotating shafts are controlled to rotate by the servo motor and the rotating speeds of the two rotating shafts can be accurately controlled separately; an all-insulation design is adopted by a rotating assembly and current is loaded to a friction pair by adopting a liquid conductive technology and the loaded current is accurately controllable; the cooling and lubricating system is arranged, so that over-high temperature of the rotating shafts is prevented and the experiment testing time is effectively prolonged; the atmosphere box is arranged, so that different experiment environments can be simulated. All real-time data are collected and stored by adopting a lower computer, various data changes in the experiment process can be accurately analyzed through cooperation with a synchronous high-speed video camera, and the mechanism of current-carrying friction is researched.

Description

technical field [0001] The invention relates to a friction and wear tester, in particular to a rolling current-carrying friction and wear tester. Background technique [0002] Rolling contact is one of the important forms of operation of current-carrying friction pairs. The railway traction power supply system is responsible for the important task of supplying power to locomotives and auxiliary equipment. It is mainly composed of traction substations, catenary and return system. flow contact state. In large and medium-sized high-voltage motor equipment using rolling bearings such as wind turbines, the alternating magnetic flux and electrostatic charge of the shaft will lead to high shaft voltage, and shaft current will be generated when the motor shaft, bearing, stator base and the ground form a closed loop , so that the bearing is in a current-carrying rolling state. Shaft current discharge will cause severe galvanic erosion in the contact area, and the resulting hard pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
CPCG01N3/56
Inventor 戴振东张永振黄肖飞马珂幸宋晨飞
Owner NANJING BIO INSPIRED INTELLIGENT TECH
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