Mechanism for measuring dynamic strength of automobile front axle rocker arm

A technology of dynamic strength and front axle, which is applied in elastic testing, vehicle testing, machine/structural component testing, etc. It can solve the problems of large loss of test parts and the inability to simulate the actual working conditions of the front axle rocker arm of the car, etc., to achieve Credibility-enhancing effects

Inactive Publication Date: 2007-11-14
SHANGHAI UNIV OF ENG SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of mechanism that is used for testing the dynamic strength of rocker arm of front axle of automobile, described this mechanism that is used for testing the dynamic strength of rocker ar

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  • Mechanism for measuring dynamic strength of automobile front axle rocker arm
  • Mechanism for measuring dynamic strength of automobile front axle rocker arm
  • Mechanism for measuring dynamic strength of automobile front axle rocker arm

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Embodiment Construction

[0015] As shown in Fig. 1, in the dynamic durability bench test carried out on the rocker arm of the front axle of the automobile in the prior art, the rubber metal bearing 2 at the rear shaft support 1 of the rocker arm occurred abnormal early damage. Dozens or even more rubber-metal bearings 2 need to be lost to complete the test. For this reason, the test mode has been changed, that is, the rocker arm rear axle support 1 is directly fixed in a rigid frame. However, during the test, it was found that there was abnormal damage near the rear axle of the rocker arm, and the service life was very short. The reason is that the rubber-metal bearing 2 is changed to a rigid support, which changes the constraints or boundary conditions of the rocker arm, thus destroying the deformation distribution and stress distribution of each point of the rocker arm when it is stressed.

[0016] According to the similarity theory, any two points of the rocker arm installed on the vehicle (assume...

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Abstract

A structure used to test dynamic intensity of protocerebral rocker of a car can at the same time imitate the rigidity restriction of axial direction linearity and radial nonlinearity. One side of anti-yaw fastening device imitate rigidity restriction of axial direction linearity, the other side is separately linked to two triangle crank-spring armor plate agency, anti-yaw fastening device drives one triangle crank agency to do rotary motion clockwise or drives the other one to do rotary motion counterclockwise. The rolling axletree in a climax of the triangle crank component does vertical motion along the top bump of spring panel on the taper, so it produces different acting force and actuating arm acting on spring panel on the taper to result the anti-yaw fastening device to produce nonlinearity rigidity restriction counterforce consisting with rocker radial rigidity property, the back shaft supporting restriction of protocerebral rocker is in the anti-yaw fastening device, so it really re-creates the working state of protocerebral rocker of a car and promote the reliability of simulation test.

Description

technical field [0001] The invention relates to vehicle test equipment, in particular to a vehicle dynamic strength durability simulation test bench, in particular to a mechanism for testing the dynamic strength of a front axle rocker arm of an automobile. Background technique [0002] The rapid development of the automobile industry puts forward higher requirements on the reliability and R & D cycle of auto parts. Simulating the actual working conditions of auto parts and conducting dynamic strength and durability tests on them is an effective way to study their reliability. However, if the whole vehicle is used for road test under actual working conditions, the test cycle will be very long and consume a lot of manpower, material and financial resources. Therefore, in order to shorten the test period, it is necessary to carry out intensive bench tests. An automobile company once commissioned a parts factory to conduct a dynamic durability bench test on the rocker arm of t...

Claims

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Application Information

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IPC IPC(8): G01M5/00G01M19/00G01M17/007G01M99/00
Inventor 徐兆坤何稚桦赵高晖蒋妙范黄虎吴伟蔚项阳
Owner SHANGHAI UNIV OF ENG SCI
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