Friction test machine for small sample contracting ratio table

Abstract

The invention discloses new structural bench frictional testing machine for hand sample assembled not from 1:1 real objects. The technical scheme fixes the principal axis drive system (PADS), which simulates different inertia and provides different rotate speed, on a frame; also installs the sliding table system (STS), which determines relative position between sample of friction material to be tested and friction brake disc, on the frame. Distance between spindle axis of PADS and working face on the frame is equal to distance between axis of bearing head in STS and working face on the frame. Moreover, the spindle axis is parallel to the axis of bearing head. The disclosed testing machine possesses same or similar functions of inertia bench scale testing machine, and uses same standard of test procedure. Features are: attachable inertia, raised precision of hand sample test, lower price ratio, suitable to develop new product, and monitor quality of production.

Description

technical field [0001] The invention relates to a friction and wear performance testing machine for friction materials, in particular to a small scale bench friction testing machine. Background technique [0002] Friction and wear performance tests of friction materials include sample tests and inertial bench tests. The small sample test takes the standard sample with a small size as the research object, and is carried out according to the small sample test method, focusing on the material characteristics of the friction material under specific conditions. The small sample test has the advantages of simplicity, rapidity, low equipment investment and test cost, but there is a certain gap between the test simulation conditions and the actual working conditions of the specific friction parts, and the test results have certain limitations. It is often used in the early stage of new product development. Formula research and intermediate quality monitoring of friction material pr...

AI Technical Summary

Problems solved by technology

Neither the constant speed testing machine nor the Chase testing machine can add inertia to the small sample testing machine, and the range of test simulation conditions and test functions are far inferior to the inertial bench testing machine. The same test method as the frame test

The MM1000 testing machine adopts a scaled sample, which can add inertia, and the simulation of test conditions has been improved. However, it adopts the pneumatic loading method, the braking force control accuracy is low, and the constant torque output test mode cannot be simulated; when the braking pressure differs greatly, it needs Replacing different loading cylinders, the test efficiency is low; there is no cooling temperature control system, and due to the limitation of the technical level at that time, the original structure is complex, the reliability is poor, the test accuracy and automation level are low, and the same method as the inertial bench test cannot be used. experiment method

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