Loading device of torsion rigidity test of body in white of ordinary passenger car

Abstract

The present invention relates to a loading device of a torsion rigidity test of a body in white of an ordinary passenger car. The device comprises a test platform, a rotation T-shaped beam, front-suspension restraining clamps, rear-suspension restraining clamps, and an extension support, an upper hinge connection base, a force sensor, a loader and a pedestal which are connected in order from top to bottom. The extension support is fixedly arranged at one end of a horizontal beam of the rotation T-shaped beam, a transverse horizontal distance L from a fixed point of the upper hinge connection base and the extension support to a rotating shaft of the rotation T-shaped beam is 1000mm, the upper and lower ends of the force sensor are both in spherical hinge and both have force value display functions, the loader can achieve stable increasing or decreasing of a spatial size in a vertical direction so as to drive a body in white of an ordinary passenger car to perform clockwise torsion or anticlockwise torsion around the rotating shaft of the rotation T-shaped beam. The loading device of the torsion rigidity test of the body in white of the ordinary passenger car is suitable for being applied to the body in white of the ordinary passenger car and vehicles of similar types, and is higher in control precision, simpler, convenient to load and accurate in moment.

Description

technical field [0001] The invention belongs to the technical field of vehicle testing equipment, and in particular relates to a loading device used in testing the torsional stiffness of a body-in-white of a passenger car. Background technique [0002] At present, the force sensor of the torsional stiffness test loading device of an ordinary passenger car body-in-white is usually arranged on the front suspension restraint fixture. When loading, the required moment value must be converted into the corresponding force value before the start of the test. The measurement of the force arm required for conversion is often deviated by people and instruments, which affects the experimental results. At the same time, the implementation of the torque must be transmitted to the body-in-white through the front suspension restraint fixtures. The installation of the left and right front suspension restraint fixtures cannot guarantee absolute symmetry. The implementation of the torque is ...

AI Technical Summary

Problems solved by technology

The measurement of the force arm required for conversion is often deviated by people and instruments, which affects the experimental results

At the same time, the implementation of the torque must be transmitted to the body-in-white through the front suspension restraint fixtures. The installation of the left and right front suspension restraint fixtures cannot guarantee absolute symmetry. The implementation of the torque is controlled by the force sensor arranged on the front suspension restraint fixtures. In addition to the required torque, other loads are often added, which will also affect the accuracy of the experimental results.

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