Mechanical closed shock absorber rotation torsion test bench

Abstract

The invention relates to the technical field of shock absorber testing, in particular to a mechanical closed type shock absorber rotation torsion test bench which comprises a base support with a motor installed in an inner cavity and a rotation torque exciter arranged on the base support. A torsion shaft and a rotating cylinder arranged on the outer ring wall of the torsion shaft in a sleeving mode are rotationally connected to the axis of the rotating torque exciter, the rotating cylinder seals the torsion shaft in an inner cavity of the rotating cylinder, and an oil pressure cavity is formed between the rotating cylinder and the torsion shaft. In the invention, the motor is used for driving the rotating cylinder to finally enable the friction ring of the outer ring of the test piece to rotate, and then the electro-hydraulic servo valve is used for driving the inner long shaft to finally enable the inner ring of the test piece to generate advanced and lagged cyclic torsional vibration relative to the outer ring, so that the inner ring and the outer ring generate advanced and lagged phase torsional vibration when the test piece rotates at a high speed; the torque performance of the driven disc hub of the inner ring of the test piece can be tested in the rotating process of the friction ring, and the strict requirements of shock absorber testing are met.

Description

technical field [0001] The invention relates to the technical field of shock absorber testing, in particular to a mechanically enclosed shock absorber rotation and torsion test bench. Background technique [0002] The torsional shock absorber is an important component in the automobile clutch, mainly composed of elastic elements and damping elements, etc. The torsional shock absorber can reduce the torsional stiffness of the joint part between the engine crankshaft and the drive train, thereby reducing the natural frequency of the torsional vibration of the drive train, while increasing The torsional damping of the transmission system can suppress the corresponding amplitude of torsional resonance and attenuate the transient torsional vibration caused by impact, control the torsional vibration of the clutch and transmission shafting when the power transmission assembly is idling, and eliminate the idling noise of the transmission and the noise of the final drive and transmiss...

AI Technical Summary

Problems solved by technology

[0003] After the torsional shock absorber is produced, it is necessary to test the performance of the shock absorber. The test mainly includes two aspects. One is to test the number of rotations of the friction ring of the outer ring of the shock absorber, that is, the rotation reliability. On the one hand, it is to test the torsion times and angles of the driven disc hub inside the shock absorber. The existing shock absorber test bench can only test one of the above two aspects, and cannot rotate on the friction ring. In the process of torsion testing of its internal driven disc hub, it cannot meet the stringent requirements of the torsional shock absorber test, and is not conducive to the improvement of the overall shock absorption performance of the car

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