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Performance index testing method of bearing roll ball under pure sliding friction condition

A technology of sliding friction and test method, which is applied in the direction of material inspection, test wear resistance, etc., can solve the problems of high price, unsuitable bearing rolling ball rapid test, strict test conditions, etc., and achieve simple operation, simple and effective test means, easy-to-achieve effects

Active Publication Date: 2013-08-28
国创(洛阳)轴承产业技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition to the test object of the above-mentioned friction and wear testing machine is a steel ball, its test methods and results are limited. In addition, the above-mentioned friction and wear testing machine is expensive and the test conditions are strict, so it is not suitable for bearing rolling balls such as steel balls or ceramic balls. quick test of

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  • Performance index testing method of bearing roll ball under pure sliding friction condition
  • Performance index testing method of bearing roll ball under pure sliding friction condition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Example 1: Performance Evaluation of Two Lubricants with Different Ratios

[0052] The first is the lubricant with N32 as the base oil, and the second is the lubricant with different nano-particles. The tapered rod is made of bearing steel GC15A, and the bearing balls are steel balls made of bearing steel GC15A. The diameter of the quality rolling ball is 12.7mm. A comparative test is used to evaluate the lubrication performance of the first lubricant and the second lubricant. The performance evaluation methods of the two lubricants are as follows:

[0053] Put four steel rolling balls with a diameter of 12.7mm into the matching oil box, put the tapered rod 4 and the pressure ball ring 2 on the center and the periphery of the four steel rolling balls 5 respectively, and put the oil box The cover 3 is screwed on the external thread 1.7 provided on the outer cylindrical surface of the upper part of the oil box 1, through the third positioning hole 3.1 and the fourth positionin...

Embodiment 2

[0062] Example 2: Long-term wear test of two ceramic rolling balls

[0063] The first ceramic ball made of Si 3 N 4 Made, the second ceramic ball is made by ZrO 2 Production, the diameter of the two ceramic balls is 12.7mm, the tapered rod is made of bearing steel GC15A, the same lubricant is selected, and the Si is evaluated by comparison test 3 N 4 And ZrO 2 The wear effect of the manufactured ceramic rolling balls for a long time. The long-term wear test methods of the two ceramic rolling balls are as follows:

[0064] Put the four ceramic balls of the first type with a diameter of 12.7mm into the matching oil box, and put the tapered rod 4 and the pressure ball ring 2 on the center and periphery of the four ceramic balls of the first type. Screw the oil box cover 3 to the external thread 1.7 provided on the outer cylindrical surface of the upper part of the oil box 1, pass the third positioning hole 3.1 and the fourth positioning hole 3.2 on the oil box cover 3 and tighten the o...

Embodiment 3

[0067] Example 3: Long-term wear test of two steel rolling balls

[0068] The first type of steel ball is made of GCr15A, and the second type of steel ball is made of GCr9. The diameter of the two steel balls is 12.7mm. The tapered rod is made of bearing steel GC15A. The same lubricant is used. To evaluate the long-term wear effect of steel rolling balls made by GCr15A and GCr9 through comparative tests, the long-term wear test methods of the two steel rolling balls are as follows:

[0069] Put four steel balls of the first type with a diameter of 12.7mm into the matching oil box, and put a tapered rod 4 and a pressure ball ring on the center and periphery of the four steel balls of the first type. 2. Screw the oil box cover 3 to the external thread 1.7 provided on the outer cylindrical surface of the upper part of the oil box 1, pass the third positioning hole 3.1 and the fourth positioning hole 3.2 on the oil box cover 3 and remove the oil under the action of a torque wrench. Ti...

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Abstract

The invention provides a performance index testing method of a bearing roll ball under pure sliding friction condition. The bearing ball is a steel roll ball or a ceramic roll ball; a testing device comprises an oil box (1), a ball pressing ring (2), an oil box cover (3) and a conical rod (4), wherein the oil box is provided with a first locating hole (1.1), a loading hole (1.2), a heating blind hole (1.3), a temperature sensor placing blind hole (1.4), a second locating hole (1.5), a conical surface shaped cavity (1.6), an external thread (1.7) and a cylindrical surface shaped cavity (1.8); and the oil box cover is provided with a third locating hole (3.1) and a fourth locating hole (3.2). Because pure sliding friction is implemented to the bearing roll ball under the matching of the testing device, and under the pure sliding friction condition, the performance of the selected lubricating agent is evaluated and long-time wear test is carried out on the bearing roll ball material, thetesting device provided by the invention has the advantages of simple structure and convenience in use, and the performance index testing method provided by the invention has the advantages of simplicity in operation and easiness for realization.

Description

Technical field [0001] The invention belongs to the technical field of bearing ball testing, and in particular relates to a performance index test method of bearing balls under pure sliding friction. The performance index in the method refers to the performance evaluation of the selected lubricant and the bearing The materials used in the rolling balls are subjected to long-term wear tests, and the bearing balls are either steel balls or ceramic balls. Background technique [0002] The friction and wear of bearing balls is one of the main failure modes. The friction and wear performance of bearing balls is determined by factors such as materials, working conditions, contact methods, and environmental conditions. Bearing ball friction and wear test is a test of friction and wear performance of its materials and lubricants under given conditions. [0003] The common friction and wear testing machine for bearing balls is mainly used in the performance evaluation of lubricating oil. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/56G01N33/30
Inventor 李泽强何强叶军王世锋张海鹏丁海善牛青波王琼王艳
Owner 国创(洛阳)轴承产业技术研究院有限公司