A leaf spring composite force bench test mechanism

Abstract

The invention relates to a plate spring combined stress bench test mechanism. The mechanism comprises a front support, a rear support, a coiling lug bracket, a lifting lug bracket, a to-be-tested plate spring assembly, a base plate with a force arm, a hinge shaft, a fork-shaped test force input shaft, a base plate, a lower base plate with a bearing rod, U-shaped bolts, an upper loader and a lower loader. The safety of the plate spring combined stress bench test mechanism in the test process is guaranteed through the front support and rear support structure; longitudinal and transverse twisting characteristic and fatigue tests can be carried out, and test precision is high; the front support is higher than the rear support, so that the posture and stress of the to-be-tested plate spring assembly are consistent with those of a whole vehicle in installation, the influence of horizontal linear motion of a hydraulic cylinder on a bench test is eliminated, and distortion of the bench test cannot be caused; the influence of torque generated in the longitudinal or transverse twisting process of a plate spring on equipment is eliminated, the service life of the bench equipment is long, maintenance and energy consumption of the equipment are reduced, and cost is saved.

Description

technical field [0001] The invention belongs to the technical field of leaf spring detection, in particular to a leaf spring force bench test mechanism. Background technique [0002] Leaf springs (referred to as leaf springs) can be placed vertically or horizontally on the car. Because the horizontal leaf spring needs to transmit the longitudinal force, an additional guiding force transmission device must be provided, which makes the structure complicated and the mass 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

[0008] The purpose of the present invention is to provide a leaf spring composite force bench test mechanism to solve the problem that the current force bench test device cannot perform longitudinal torsion and transverse torsion tests on leaf springs, and at the same time solve the problem that the existing force bench test device The safety, stability, reliability and accuracy of the test are not high

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