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Composite material plate spring double-channel rack device and test method

A composite material plate and dual-channel technology, which is applied in the direction of measuring devices, elastic testing, mechanical parts testing, etc., can solve the problems of complex force of composite material leaf springs and inability to effectively simulate life, and achieve the effect of predicting fatigue life

Pending Publication Date: 2022-02-15
东风汽车底盘系统有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in practice, the force of the composite leaf spring in the vehicle is relatively complicated. This method can only verify its vertical performance, and cannot effectively simulate the life of the composite leaf spring under various loads on the actual road.

Method used

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  • Composite material plate spring double-channel rack device and test method
  • Composite material plate spring double-channel rack device and test method

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Embodiment approach

[0034] As an embodiment of the present invention, the torsion assembly 2 at least includes a torsion frame assembly 21 and a torsion power device 22, the metal ear at one end of the leaf spring is hingedly mounted on the torsion frame assembly 21, and the torsion power device 22 is used to Assembly 21 provides torsional force. The specific structure can be as follows: the torsional power device 22 can adopt a rotary actuator, the torsional frame assembly 21 is a frame structure and is fixedly connected with the rotary actuator, and a cushion block 23 can also be arranged in the torsional frame assembly 21, a double head The studs pass through the metal ears, and both ends are fixed on the symmetrically arranged spacers 23, so that the leaf spring is hingedly mounted on the torsion frame assembly 21 through the spacers 23 and the double-ended studs.

[0035] It can be understood that, in order to facilitate installation, the spacer 23 can include two bodies, and the two bodies ...

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Abstract

The invention relates to a composite material plate spring double-channel rack device and a test method. The device at least comprises a plate spring fixing device, wherein the plate spring fixing device is used for fixing the middle part of a plate spring; a torsion assembly hinged to one end of the plate spring and used for applying torsion force to the plate spring; and a vertical loading assembly which is fixedly connected with the torsion assembly and is used for applying vertical force to the torsion assembly and transmitting the vertical force to the plate spring. During use, the vertical loading assembly and the torsion assembly apply acting force to the plate spring in a sine wave coordinated loading mode, the loading frequency of the vertical loading assembly and the torsion assembly is 2: 1, and the phase difference is 0. According to the rack device provided by the invention, the torsion assembly provides a torsion force for the plate spring, the vertical loading assembly provides a vertical force for the plate spring through the torsion assembly, and the torsion assembly and the vertical loading assembly form a composite force, so that the complex stress condition of the composite material plate spring in a road can be well simulated, and the fatigue life can be effectively predicted.

Description

technical field [0001] The invention specifically relates to a composite material leaf spring double-channel bench device and a test method. Background technique [0002] The main components of composite leaf springs include reinforcing fibers and resin matrix, which are synthesized together through certain processes. In general, the total weight of the composite leaf spring (including metal joints) is about 50% of the weight of the leaf spring, which can greatly reduce the weight of the suspension and save fuel consumption. [0003] At present, the bench test of composite leaf spring is carried out in the same way as the leaf spring, that is, the vertical load is loaded on the composite leaf spring separately to verify its fatigue life. However, in practice, the force of the composite leaf spring in the vehicle is relatively complicated. This method can only verify its vertical performance, and cannot effectively simulate the life of the composite leaf spring under various...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M5/00G01M13/00
CPCG01M5/005G01M13/00
Inventor 王亚荣王海庆石朝阳何云江申回春江文进
Owner 东风汽车底盘系统有限公司
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