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Paper-based friction material test clamp and test method thereof

A technology of paper-based friction materials and test fixtures, which is applied in the direction of analyzing materials, testing wear resistance, measuring devices, etc., can solve the problems of difficulty in testing paper-based friction materials, and achieve the effect of convenient testing

Active Publication Date: 2013-11-27
陕西航沣新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the difficulty of testing paper-based friction materials with existing test fixtures, the present invention provides a test fixture for paper-based friction materials

Method used

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  • Paper-based friction material test clamp and test method thereof
  • Paper-based friction material test clamp and test method thereof
  • Paper-based friction material test clamp and test method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1. The test fixture for paper-based friction material of the present invention includes a fixture main body 1 , a positioning spline 2 , a magnet 3 and a core plate 4 . The fixture main body 1 is a metal disc structure. The sample clamping part 1a on the fixture main body 1 is used for clamping and positioning the paper-based friction material 5. The right end surface is processed with a sample clamping groove 1c, a sample dismounting groove 1d and The magnet installation hole 1e, the fixture installation part 1b has a spline groove 1g for connection with the friction testing equipment, the axis of the fixture main body 1 has a A process hole 1f, which is used to reduce the weight of the fixture; the sample clamping part 1a is guaranteed Under the premise of fixture strength and rigidity, reduce the thickness as much as possible to reduce the weight of the fixture. The thickness is preferably 5-10mm; The outer diameter of the friction material 5 is 10-20mm larg...

Embodiment 2

[0023] Example 2. The method for testing the paper-based friction material by using the paper-based friction material test jig in Example 1, the specific steps are as follows.

[0024] 1) Bond the paper-based friction material 5 to be tested to one side of the core plate 4, and ensure the concentricity of the paper-based friction material 5 and the core plate 4 during bonding.

[0025] 2) Assemble the fixture, assemble the positioning spline 2 in the sample clamping groove 1c by welding, ensure that the B process hole 2b and the A process hole 1f are concentric, and assemble the magnet 3 on the magnet installation with an interference fit. Inside hole 1e.

[0026]3) Assemble the core plate 4 bonded with the paper-based friction material 5 into the sample clamping groove 1c, with the side with the paper-based friction material 5 on the outside.

[0027] 4) Assemble the friction material testing fixture on the friction testing machine to test the friction performance of the pa...

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Abstract

The invention discloses a paper-based friction material test clamp and a test method thereof to solve a technical problem that the test of the paper-based friction material through using present test clamps is difficult. A technical scheme adopted in the invention is characterized in that the test clamp is composed of a clamp body, a positioning spline, a magnet and a core plate; the clamp body has a metal disc-shaped structure and is used for clamping and positioning the paper-based friction material, and a core plate positioning groove and a magnet mounting hole are arranged on the end surface of the clamp body; the positioning spline is a metal sheet having an external spline and is fixed in the positioning groove of the core plate; the magnet is fixed in the magnet mounting hole; and the core plate is a ferromagnetic metal sheet having an internal spline. The paper-based friction material is bonded on the core plate before test, and the core plate is positioned on the clamp body depended on the suction between the above splines and the magnet during the test. The clamp and the method solve a technical problem that the paper-based friction material directly bonded on a disc is difficult to remove; and the core plate has the advantages of simple structure, convenient processing, and convenient implementation of tests of different samples only through replacing the core plate by adopting the same clamp.

Description

technical field [0001] The invention relates to a test fixture, in particular to a paper-based friction material test fixture. It also relates to a method for testing paper-based friction materials using the paper-based friction material test jig. Background technique [0002] Paper-based friction material is a kind of wet friction material formed by papermaking process. Because it does not hurt the couple, it has a high dynamic friction coefficient, a static and dynamic friction coefficient close to it and excellent wear resistance performance. It has been widely used in wet clutches and brakes of automobiles and engineering machinery. Wide range of applications. At present, SAE No.2 testing machine is mainly used to test the friction performance of paper-based friction materials in the world, and MM1000 series and QM1000 series friction and wear performance testing machines are mainly used in China. Existing test equipment generally adopts a method of bonding the frictio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/04G01N3/56
Inventor 齐乐华潘广镇付业伟郭学平宋晓东李贺军
Owner 陕西航沣新材料有限公司
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