Involute spline pair fretting wear testing platform

An involute spline, fretting wear technology, applied in the field of friction and wear measurement, can solve problems such as inability to apply controllable pressing force, limited simulation conditions, and inability to simulate real-time changes of rotating parts.

Inactive Publication Date: 2017-07-07
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Patent CN 106053063 A discloses "a differential planetary gear shaft fatigue wear test bench and its test method". However, the fatigue wear test bench can only apply final force to the rotating part at two positions, and cannot apply

Method used

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  • Involute spline pair fretting wear testing platform
  • Involute spline pair fretting wear testing platform
  • Involute spline pair fretting wear testing platform

Examples

Experimental program
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Embodiment Construction

[0022] This embodiment is a fretting wear test bench for an involute spline pair.

[0023] refer to Figure 1 ~ Figure 4 In this embodiment, the involute spline pair fretting wear test bench consists of a frame 1, a first fixed block 2, a driven sleeve lock nut 3, a driven sleeve 4, a wear-resistant sleeve 5, a sleeve 6, an involute Inline spline 7, involute external spline 8, driving sleeve 9, pin hole 10, driving wheel 11, driving sleeve lock nut 12, second fixed block 13, horizontal screw 14, screw seat 15, square The slide block 16, the longitudinal lead screw 17, the guide rail 18, the pull rod 19, the tension sensor 20, the square through hole 21, and the motor 22 are formed; the frame provides support for the above-mentioned components. The first fixed block 2 and the second fixed block 13 are two components with the same structure, and the first fixed block 2 and the second fixed block 13 are axially processed with round holes; the first fixed block 2 and the second f...

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Abstract

The invention relates to an involute spline pair fretting wear testing platform. A rack is equipped with an involute inner spline to be tested and an involute outer spline to be tested. A wear-proof casing is embedded between a sleeve and the involute inner spline. A pull force sensor is on a pull rod. A rack guide rail is provided with a vertical screw for adjusting an axial force size and a horizontal screw for adjusting a loading position. A motor drives an involute spline pair to rotate relative to the wear-proof casing. The position of the wear-proof casing relative to the involute inner spline is adjusted through the horizontal screw, and the pull force applied to the involute inner spline by the wear-proof casing is adjusted through the vertical screw. The working conditions of the involute inner spline and the involute outer spline under axial force are simulated, the pull force change is observed in real time through the pull force sensor, the axial force effect with a variable position and size borne by the involute spline pair in working is simulated, the fretting wear laws of the involute inner spline and the involute outer spline are measured and determined, and an involute spline pair fretting wear test is simplified.

Description

technical field [0001] The invention relates to the technical field of friction and wear measurement, in particular to an involute spline pair fretting wear test bench. Background technique [0002] The involute spline pair has the characteristics of uniform load, large bearing capacity and good guidance, so it is widely used. However, in the aviation power transmission, due to the harsh working conditions of the involute spline pair, there are some situations such as the final shaft force, which makes the spline contact tooth surface wear seriously, resulting in the failure of the connection. At present, there is a lack of test benches that can study the fretting wear laws of involute spline pairs under different loading positions and different final pressures, and the related friction and wear measurement test benches have defects in many aspects such as function, structure, and practicability. [0003] Patent CN 106053063 A discloses "a differential planetary gear shaft ...

Claims

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Application Information

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IPC IPC(8): G01M13/02
CPCG01M13/02
Inventor 王三民郑维彤颉晓欣李浩刑天倚裴安黄雄
Owner NORTHWESTERN POLYTECHNICAL UNIV
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