Friction test machine for small sample contracting ratio table

A friction testing machine and scaling technology, applied in the direction of testing wear resistance, using mechanical devices, measuring devices, etc., can solve the problems of low testing accuracy and automation level, low braking force control accuracy, poor reliability, etc., to improve the comparability performance level, reduced test costs, reduced geometry

Inactive Publication Date: 2007-06-27
JILIN UNIV
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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 accu

Method used

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  • Friction test machine for small sample contracting ratio table
  • Friction test machine for small sample contracting ratio table
  • Friction test machine for small sample contracting ratio table

Examples

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Embodiment Construction

[0034] Referring to Fig. 1 and Fig. 2, a small-scale bench friction testing machine adopts an overall structure, mainly consisting of a box-type machine base 1, a spindle drive system 3, a dust removal assembly 4, a blower cooling assembly 5, and a sliding table system 7 , computer control system and electrical control box 8, pressure control loading device 9 components. The box-type base 1 can be welded by profiles and steel plates according to the size of the production batch, or it can be assembled by casting in parts and then fixed. No matter which method is used, it must have sufficient rigidity and strength. The working surface shall be machined, and a keyway shall be machined longitudinally. First, the sliding table system 7 used to determine the relative position of the friction material sample 84 to be tested and the friction brake disc 22 is connected via a key. The longitudinally moving flat plate 40 in the system 7 can move longitudinally on the upper working surf...

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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...

Claims

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Application Information

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IPC IPC(8): G01N3/56G01N19/00
Inventor 王铁山赵小楼周志刚卢辉遒刘学峰
Owner JILIN UNIV
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