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Method for testing fatigue life of gear of driving axle differential

A technology of fatigue life and test method, which is applied in the direction of machine gear/transmission mechanism test, machine/structural component test, instrument, etc., can solve problems such as unsuitable planetary gear, half shaft gear fatigue life, etc., and achieve easy promotion and use, method Simple and reliable, the effect of quality stability guarantee

Inactive Publication Date: 2017-06-13
FANGSHENG AXLE LIUZHOU
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Problems solved by technology

Although the document "Research on the Fatigue Life of the Gear of the Main Reducer of the Automobile Drive Axle, Zhu Cailong, "Hefei University of Technology", 2010" discloses a test method for the fatigue life of the gear of the main reducer of the drive axle of the automobile, this method is only applicable to the The fatigue life of the active and passive bevel gears is not suitable for determining the fatigue life of the planetary gears and side gears inside the drive axle differential

Method used

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  • Method for testing fatigue life of gear of driving axle differential
  • Method for testing fatigue life of gear of driving axle differential
  • Method for testing fatigue life of gear of driving axle differential

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Embodiment 1

[0058] A driving axle differential gear fatigue life test method, the method is to first assemble the differential of the driving axle and the main cone assembly to form the main reduction assembly, assemble the main reduction assembly on the driving axle, and start the test , to simulate the working condition of constant differential speed, test the fatigue resistance times or time when the planetary gears and side gears fail, so as to determine the fatigue life of the planetary gears and side gears inside the differential, so as to determine whether the differential meets the requirements. Design requirements.

[0059] The simulated constant differential speed working condition is to control the speed and torque of the input end of the main cone to a constant value, and simultaneously control the speeds of the output ends of the two drive axles respectively, so that the speeds of the output ends of the two drive axles are not zero, but the speed difference remains constant. ...

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Abstract

The invention relates to a method for testing fatigue life of a gear of a driving axle differential, and relates to a method for testing a driving axle. The method comprises the following steps of firstly, assembling the driving axle differential and a main cone assembly to form a main reducer assembly; assembling the main reducer assembly on the driving axle; starting the test, simulating the constant and differential speed conditions, and measuring the rotation times of a driving bevel gear until a planetary gear and an axle shaft gear in the differential fail, so as to determine the fatigue lives of the planetary gear and the axle shaft gear in the differential, and determine whether the differential meets the design requirements or not. The method is suitable for determining the fatigue lives of the planetary gear and the axle shaft gear in the differential, and has the advantages that the method is simple, convenient and reliable; the method can accurately judge whether the differential meets the requirements or not; the guarantee is provided for the quality stability of the batched production, and the method is suitable for popularizing and applying.

Description

technical field [0001] The invention relates to a driving axle test method, in particular to a driving axle differential gear fatigue life test method for planetary gears and side gears inside the differential. Background technique [0002] At present, there is no industry standard or national standard for the fatigue life test of planetary gears and side gears inside the drive axle differential. Relevant enterprises can only carry out various strengthening designs according to market requirements. Since there is no experimental verification, we can only rely on market verification to confirm whether it is feasible. Although the document "Research on the Fatigue Life of the Gear of the Main Reducer of the Automobile Drive Axle, Zhu Cailong, "Hefei University of Technology", 2010" discloses a test method for the fatigue life of the gear of the main reducer of the drive axle of the automobile, this method is only applicable to the The fatigue life of the active and passive b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/02
CPCG01M13/021
Inventor 韦文儒覃江南黄一鸣许冠能韦保彭绍祥
Owner FANGSHENG AXLE LIUZHOU
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