Method for testing fatigue performances of swinging arm
A fatigue performance and test bench technology, applied in the direction of vehicle suspension/shock absorber testing, etc., can solve the problems of prolonged testing time, many testing items, etc., to achieve the effect of convenient use, accurate testing, and speeding up R&D and design.
Active Publication Date: 2016-02-24
NINGBO HUIZHONG AUTOMOTIVE CHASSIS MFG
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Problems solved by technology
When testing the overall suspension system, all parts need to be used, and there are many testing items, which prolongs the testing time
Method used
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Embodiment Construction
[0010] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail: figure 1 As shown, a method for testing the fatigue performance of a swing arm includes the following steps: step a: install the connecting shaft 52 and the ball pin 41 on the swing arm mount 3 and the ball pin mount 4 respectively; step b: install the swing arm The mounting base 3 and the ball pin mounting base 4 are installed on the test bench 1; step c: connect the front end of the test torsion bar 2 to the connecting bracket, connect the rear end to the spline sleeve, and then install the spline sleeve to the torsion bar fatigue On the testing machine; step d: install the tested swing arm 5 on the test bench 1, connect the connecting bracket to the tested swing arm 5, and press the U-shaped part of the tested swing arm 5 on the ball pin 41; step e: pass The fatigue testing machine applies a cyclic load to the test torsion bar 2, and then ...
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The invention discloses a method for testing the fatigue performances of a swinging arm, and the method comprises the following steps: a, respectively installing a connecting shaft and a ball pin on a swinging arm installation seat and a ball pin installation seat; b, installing the swinging arm installation seat and the ball pin installation seat on a test bench; c, enabling the front end of a test torsion rod to be connected with a connecting support, enabling the tail end of the test torsion rod to be connected with a spline sleeve, and enabling the spline sleeve to be installed on a torsion rod fatigue testing machine; d, enabling a tested swinging arm to be installed on the test bench, enabling the connecting support to be connected with the tested swinging arm, and enabling the tested swinging arm to be pressed on the ball pin; e, applying a circular load to the test torsion rod through the fatigue testing machine, and transmitting the circular load to the tested swinging arm through the test torsion rod; f, judging that the fatigue performances are qualified if there is no crack when the number of circulating times reaches a certain value, or judging that the fatigue performances are not qualified if there is crack. Compared with the prior art, the method employs a simple structure which is low in manufacture cost and very convenient to use, and can accurately test the fatigue performance of the tested swinging arm.
Description
technical field [0001] The invention belongs to the field of auto parts detection, in particular to a method for testing the fatigue performance of a swing arm. Background technique [0002] The suspension system refers to the entire support system composed of springs and shock absorbers between the vehicle body and tires. The proper function of the suspension system is to support the body and improve the riding experience. Different suspension settings will give the driver different driving experiences. Suspension system, seemingly simple in appearance, integrates various forces and determines the stability, comfort and safety of a car. It is one of the most critical components of a modern car. [0003] The swing arm of the car is a part of the suspension system, and it is the guide and support of the suspension. Its deformation will affect the wheel alignment and reduce the driving stability. If there is a problem with the front swing arm, the feeling is that the steerin...
Claims
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IPC IPC(8): G01M17/04
CPCG01M17/04
Inventor 吴见方峰俞国阳唐杰徐辉
Owner NINGBO HUIZHONG AUTOMOTIVE CHASSIS MFG