A Bench Test Mechanism for Leaf Spring S Deformation

Abstract

The invention relates to a plate spring S-deformation stand test mechanism. The plate spring S-deformation stand test mechanism comprises a front bearer, a spring eye support, a tested plate spring assembly, a moment-arm-equipped backing plate, a pin, a fork-shaped test force input shaft, a bearing, a rotating shaft, a lower backing plate, U-shaped bolts, a rotating shaft support, a middle bearer, a rear bearer and a hanger support, wherein the height of the front bearer is greater than the height of the rear bearer. According to the invention, the plate spring S-deformation stand test mechanism can guarantee the safety in a stand test process; feature and fatigue tests with different elasticity and different rigidity can be implemented; the test precision is high; the high-low match between the front bearer and the rear bearer enables the attitude and stress of the tested plate spring assembly to be consistent with whole-vehicle installation; the influences exerted by horizontal linear movement of a hydraulic cylinder on a stand test are eliminated, and distortion of the stand test is not caused; and the influences exerted on equipment by torque generated when the tested plate spring assembly generates longitudinal torsion or transverse torsion are eliminated, the life of the stand equipment is long, the equipment maintenance is reduced, and the cost is saved.

Description

technical field [0001] The invention belongs to the technical field of leaf spring detection and test equipment, in particular to a leaf spring S deformation bench test mechanism. Background technique [0002] Leaf springs (referred to as leaf springs) can be placed vertically or horizontally on the car. The latter must be provided with an additional guiding force transmission device to transmit the longitudinal force, which makes the structure complex and the quality increased, so it is only used in a small number of light and miniature vehicles. Longitudinal leaf springs can transmit various forces and moments, have a guiding function, and have a simple structure, so they are widely used in automobiles. [0003] Longitudinal leaf springs are divided into symmetrical and asymmetrical. If the distance between the fixed center of the middle part of the leaf spring on the axle (bridge) (here the bolt is called the center bolt) and the center of the ears at both ends of the l...

AI Technical Summary

Problems solved by technology

[0011] The purpose of this invention is to provide a kind of plate spring S deformation bench test mechanism, to solve the problem of poor safety, stability and reliability of the leaf spring bench test mechanism of the prior art, and can carry out leaf spring S deformation test, Accurately analyze the stress and deformation during S-shaped deformation to ensure the reliability of the vehicle when braking or starting

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