Device and method for testing linear reciprocating sliding friction and abrasion

Abstract

The invention discloses a device and a method for testing linear reciprocating sliding friction and abrasion; the device consists of a transducer, a workbench, a sample table, a dragging frame, a force sensor, a changeover switch, a counter, a locking device, a guideway, a baffle, a cable wire, a reducer, a peak value stabilizer, a control part and an auxiliary component; the equipment can automatically complete the abrasion test of an arranged period and can manually complete the test to friction coefficient. The testing method comprises the following steps of: leading the friction block and the sample to reciprocate to slide horizontally with constant pressure, obtaining an abrasion weight loss rate after abrading, keeping a certain positive pressure and leading the sliding block to move from stillness to uniform movement, thus obtaining the maximum static friction coefficient and the sliding friction coefficient. The device and the method can realize uniformly linear and reciprocating relative sliding abrasion in long unidirectional journey, test the maximum static friction coefficient between two bodies and the maximum static friction coefficient, the speed, the load and the adjustable journey with other materials, and can be widely applied to the detection of various samples of different materials and different structural forms.

Description

technical field [0001] The invention relates to a technology in the field of friction and wear, in particular to a linear reciprocating sliding friction and wear testing device and method. Background technique [0002] The uniform linear and reciprocating relative sliding wear between two bodies is a common form of two-body wear. After a certain period of wear, the wear loss of the material, the maximum static friction or sliding friction coefficient between the two materials, or the maximum static friction or sliding friction coefficient with other materials are important basic indicators of the material. For example, the US military standard MIL-PRF-24667B (SH) proposes the following test requirements: (1) Abrasion resistance test: the axis of the steel cable is parallel to the test surface of the test plate, and the rated load is evenly applied to the steel cable to make it press on the test plate Above, the axis of the steel cable is perpendicular to the direction of mo...

AI Technical Summary

Problems solved by technology

The formed wear surface is too small, the consistency of the material is difficult to evaluate, and it is impossible to measure the maximum static friction coefficient between two bodies after a certain period of wear, and the maximum static friction or sliding friction coefficient between any material and a third material

[0007] The third is to simulate working conditions, but the application objects and obtained performance parameters are very limited

[0008] Obviously, the above-mentioned sliding wear test method cannot realize the uniform-velocity linear and reciprocating relative sliding wear between two bodies, and it is also difficult to measure the maximum static friction or sliding friction coefficient between two-body materials after a certain period of wear, or the maximum static friction with other materials or coefficient of sliding friction

Images