Method and device for fatigue durability test of axle housing assembly simulating road

A fatigue-durability and testing device technology, applied in the direction of measuring device, vehicle testing, mechanical component testing, etc., can solve the problems of weakening the durability test of axle housing assembly 7, the data has a certain deviation, and cannot be directly measured, etc. Test cost, guarantee accuracy, cost saving effect

Active Publication Date: 2020-05-12
HUNAN UNIV AISHENG AUTO TECH DEV
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Problems solved by technology

[0005] This type of test structure only conducts simulation tests on the axle housing assembly 7, weakening the influence of buffer parts such as leaf springs and shock absorbers on the durability test of the axle housing assembly 7; The influence of part quality on the test of the axle housing assembly 7; in addition, because the road map data loaded by the actuator 3 is iterative data, which cannot be directly measured, it needs to be converted through multiple iterations, and the data will have certain deviations after multiple conversions

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  • Method and device for fatigue durability test of axle housing assembly simulating road
  • Method and device for fatigue durability test of axle housing assembly simulating road
  • Method and device for fatigue durability test of axle housing assembly simulating road

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Embodiment Construction

[0052] In order to enable those skilled in the art to better understand the technical solutions of the present application, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0053] The orientation terms such as up, down, left, right, front and rear in this application document are established based on the positional relationship shown in the drawings. If the drawings are different, the corresponding positional relationship may also change accordingly, so this should not be understood as limiting the scope of protection.

[0054] In the present invention, the terms "installation", "connection", "connection", "connection", "fixation" and so on should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated Connection can also be mechanical connection, electrical connection or mutual communication, direct connection or indirect connection thro...

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Abstract

The invention relate to a fatigue endurance testing method and device for an axle housing assembly of a simulated road, and the device comprises an experiment frame, an actuator assembly, and a digital control system. The experiment frame is fixedly provided with a test sample piece with the axle housing assembly, and simulates the fixing of the test sample piece on a vehicle body. The actuator assembly is disposed below the experiment frame, and the digital control system controls the actuator assembly to make reciprocating motion from the bottom to the top according to experiment parameters,excites the axle housing assembly, and performs the fatigue endurance testing of the simulated road for the axle housing assembly. The devices integrates the impact on the axle housing assembly froman unspring part and a damping device, achieves the reappearing of the working state of the axle housing assembly under various working conditions, and completes the fatigue endurance testing of the simulated road. The device is real and reliable in testing, improves the platformization and universality of an experiment bench, and saves the testing cost.

Description

technical field [0001] The invention relates to a method and a device for testing the fatigue durability of an axle housing assembly, in particular to a method and a device for testing the fatigue durability of an axle housing assembly simulating a road, and belongs to the field of automobile chassis / durability testing. Background technique [0002] The role of the car drive axle housing is to support and protect the final drive, differential and axle shafts, etc. The axle housing ensures that the axial relative position of the wheels is fixed, and bears the forces and bending moments transmitted by the tires during driving. [0003] In the process of fatigue durability simulation and iterative model building, the axle housing assembly fatigue durability, roll stiffness, strength and other index parameters are required. At this stage, the indoor loading axle housing assembly obtains experimental data, such as figure 1 As shown, the current indoor bench includes a gantry colu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/007G01M13/00
CPCG01M13/00G01M17/007
Inventor 韦仲宁林明沈涛宋碧晖夏朝强
Owner HUNAN UNIV AISHENG AUTO TECH DEV
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