Heavy-load sliding friction testing machine

Abstract

The invention relates to a heavy-load sliding friction testing machine mainly comprising a transmission system, a loading system and a data collecting system. The transmission system consists of a motor, a transducer, a speed reducer, a chain wheel transmission mechanism, a spindle, a spindle bearing and a shaft coupler; the loading system consists of a clamp and a pressure machine; the data collecting system consists of a data collecting card, a computer, a strain sheet and an oil pressure sensor; the motor is connected with the chain wheel transmission mechanism through an output shaft of the speed reducer; the chain wheel transmission mechanism is connected with the spindle which is sleeved with the spindle bearing, the shaft coupler and the loading system and provided with the strain sheet; the strain sheet is connected with the data collecting system; and the transducer is connected with the output end of the motor. In the invention, heavy load can be stably applied, and lubricant and storage oil can be conveniently added; three sets of transmission mechanisms are utilized to simulate the different movement form of bearings, and the speed regulating range of the system gets larger. The invention has characteristics of simple structure, accurate measurement, and the like and has great promotion significance.

Description

technical field [0001] The patent of the present invention relates to a test device, in particular to a heavy-duty sliding friction tester, which belongs to the test device. Background technique [0002] When studying the performance of bearing materials, it is usually necessary to measure the two performance indicators of friction coefficient and wear amount, so a friction testing machine is required. Existing universal friction testing machines have the following deficiencies: (1) Most of them are vertical structures, which are vertically loaded, and it is inconvenient to add lubricant; (2) Large loads are unstable, so the loading load is small, generally no more than 5kN ; (3) The movement form is single, and only one kind of movement form (continuous movement or swing, etc.) can be simulated for the friction and wear test, and the friction coefficient, wear amount and load size, movement form, lubrication conditions, etc. are all related, so the existing general The fri...

AI Technical Summary

Problems solved by technology

Existing universal friction testing machines have the following deficiencies: (1) Most of them are vertical structures, which are vertically loaded, and it is inconvenient to add lubricant; (2) Large loads are unstable, so the loading load is small, generally no more than 5kN ; (3) The movement form is single, and only one kind of movement form (continuous movement or swing, etc.) can be simulated for the friction and wear test, and the friction coefficient, wear amount and load size, movement form, lubrication conditions, etc. are all related, so the existing general The friction testing machine cannot simulate the working conditions of the bearing work site very well, and it is easy to cause measurement errors

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