Combined torsion beam test device

Abstract

The invention provides a combined torsion beam test device used for performing load test in different directions on the torsion beam that comprises a beam, trailing arms disposed across the beam, andhubs connected to the trailing arms, and the combined torsion beam test device comprises several trailing arm fixing clamps, several wheel simulation supports and several fixed struts, wherein the trailing arm fixing clamps are fixed on the fixed struts in the manner of adjustable height, one ends of the trailing arms are connected to the trailing arm fixing clamps, the other ends of the trailingarms are connected to the wheel simulation supports, the wheel simulation supports comprise wheel connecting plates comprising mutually vertical hub connecting plates and jaw connecting plates, the hub connecting plates are provided with hub holes for connecting the hubs, and the jaw connecting plates can be connected to an actuator in the mutually vertical first direction, second direction and third direction, so as to apply force to the torsion beam in the first, second and third directions.

Description

technical field [0001] The invention relates to the field of automobile testing, in particular to a combined torsion beam testing device. Background technique [0002] Torsion beam is a common form of automobile rear suspension, which is directly related to the safety performance and driving comfort of the automobile chassis, so it is particularly important to verify its mechanical properties. In the actual driving of the car, the torsion beam bears the forces and moments transmitted by the wheels in the longitudinal, lateral and vertical directions. At the same time, the torsion beam damper bracket and the coil spring tray also bear the axial (vertical) forces of their respective components. force. [0003] At present, the test devices in this field are generally of the integral frame type. The installation points of the torsion beam in this test device are inconvenient to adjust, and one test device is only suitable for one type of torsion beam; the other test device is i...

AI Technical Summary

Problems solved by technology

[0003] At present, the test devices in this field are generally of the integral frame type. The installation points of the torsion beam in this test device are inconvenient to adjust, and one test device is only suitable for one type of torsion beam; the other test device is in the integral frame type. Based on the addition of part of the adjustment structure to achieve the adjustment of the installation point of the torsion beam, but this test device still has the problem of large size and heavy weight in the overall frame test device; in addition, the current various bench tests, loading The action points are all on the wheels, and there is a lack of load assessment on the shock absorber bracket and the coil spring tray; moreover, the loading of some benches is loaded through the center of the wheel, while the actual road force is transmitted through the contact point of the tire, resulting in The torque of the torsion beam has a great influence on the structural strength of the torsion beam, and the loading from the center of the wheel directly ignores the influence of the torque, resulting in inaccurate test results

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