Electro-contact abrasion test bench for cylindrical conductive slip ring

Abstract

The invention introduces an electro-contact abrasion test bench for a cylindrical conductive slip ring. The electro-contact abrasion test bench comprises a conductive ring driving system, a pressing force and friction force testing system and a contact resistance testing system. The to-be-test conductive ring is supported and positioned by a taper hole cone or a mounted center on a driving shaft and a driven shaft, and is driven to rotate by a pull pin. Two to-be-test brush wires are respectively mounted on two clamp arms; and the same slip ring groove is compressed tightly by the brush wires to operate non-lubricated slip friction. Positive pressure and friction between the slip ring and the brush wires are respectively measured by two force sensors; a serial loop composed of the to-be-test conductive ring, the upper brush wire and the lower brush wire is connected with a standard low resistance meter to measure the contact resistance between the slip ring and the brush wires; and the loop can be connected with a standard voltage-current source to perform charged abrasion test. The abrasion test bench can meet requirements of the abrasion test on cylindrical conductive slip ring with various sizes; operating status of friction abrasion between the conductive ring and the brush wires can be simulated on conditions of different rotating speed and contact pressing force; and the contact resistance, friction coefficient, friction rate and the like can be measured.

Description

technical field [0001] The invention relates to a wear test platform, in particular to a cylindrical conductive slip ring electric contact wear test platform. Background technique [0002] The conductive slip ring is a precision power transmission device that realizes the signal and current transmission of two relative rotating mechanisms. It is composed of conductive ring, brush wire, combined bracket, precision bearing, dust cover and other auxiliary parts. It is a key component of various precision turntables, centrifuges and inertial navigation equipment. With the development of its production standardization and mass production, conductive slip rings have been widely used in electromechanical equipment such as security, factory automation, electric power, finance, instrumentation, aviation, military, transportation, and construction. [0003] The structure of conductive slip ring is divided into cylindrical type and disc type. The rings of cylindrical slip rings are ...

AI Technical Summary

Problems solved by technology

[0005] At present, although there are some friction and wear test equipment, there is very little design and development of electrical contact sliding friction and wear test equipment, especially the research on the design and manufacture of friction and wear test equipment under the condition of light load and weak electric contact. to report

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