Air spring stiffness characteristic test device

A technology of air spring and test device, which is applied in the direction of measuring device, testing of mechanical parts, testing of machine/structural parts, etc. The effect of large scope and simple fixture structure
CN111122133APending Publication Date: 2020-05-08DONGFENG DANA AXLE
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
DONGFENG DANA AXLE
Publication Date
2020-05-08

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Abstract

The invention relates to an air spring stiffness characteristic test device used for an automobile suspension component characteristic test. An integrated sensor is fixed on the outer wall of an actuating cylinder body, an electro-hydraulic servo device is connected to the actuating cylinder; a wedge-shaped bracket, a guide bracket and an air spring bracket are fixedly arranged on the ground; a connector 1 is fixed to the wedge-shaped support and connected to the actuating cylinder body through a revolute pair, an actuating head is connected to a connector 2 through a revolute pair, and a baseof the connector 2 is fixed to a left side surface of a sliding rail air spring connecting plate; the bottom surface of the sliding rail air spring connecting plate is matched with a guide rail whichis installed on a guide rail supporting plate, and the guide rail supporting plate is fixed to the guide bracket; a right side of the sliding rail air spring connecting plate is connected to an air spring base, the upper end face of the air spring is connected to a triangular plate which is provided with an air spring air path interface, and a bottom surface is fixed on the air spring bracket. According to the invention, the stiffness of the high-load and large-stroke air spring can be effectively tested, the test precision is high, the loading range is large, and meanwhile a clamp is simplein structure and convenient to assemble and disassemble.
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Description

technical field

[0001] The invention relates to the technical field of characteristic test of automobile suspension components, in particular to a test device for testing the stiffness characteristic of an air spring. Background technique

[0002] Air springs are used more and more widely in the field of automobile manufacturing, and they are indispensable elastic components in automobile suspensions. Especially in the field of passenger cars, which have higher and higher requirements for ride comfort, the importance of air springs has been recognized to a certain extent. High attention, compared with the traditional coil spring, its bearing capacity is strong, the stroke is large, and it is resistant to breakdown. The biggest advantage is that the nonlinear stiffness characteristic can improve the ride comfort of the vehicle, reduce the dynamic load of the wheel on the ground, and prolong the use of vehicle parts. life. The stiffness of the air spring in use is affected by...

Claims

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