Torsional vibration adjustment device based on magnetorheology

Abstract

The invention discloses a torsional vibration adjustment device based on magnetorheology. A key hole is formed in the center of a flange plate of a flange, and the flange plate of the flange and a flange cover provided with holes are connected with an annular sleeve through bolts and located on the two sides of the sleeve correspondingly. A torsional vibration adjustment mechanism further comprises a lower cylinder body internally provided with a containing cavity, an upper cylinder body externally provided with a containing cavity, arc-shaped piston push rods, springs, connecting rods, and a rotary shaft cylinder, wherein the rotary shaft cylinder is connected with a driving shaft, the connecting rods are fixedly connected with the rotary shaft cylinder and the arc-shaped piston push rods, and the driving shaft drives the arc-shaped piston push rod to rotate in the containing cavity, containing magnetorheological fluid, of the upper cylinder body; and electromagnetic coils are wound in the containing cavity of the lower cylinder body and generate a magnetic field when current passes through the electromagnetic coils, and the magnetorheological fluid is in a quasi-solid state under the effect of the magnetic field, so that the torsional moment of a spindle is changed, and accordingly the purpose of adjusting torsional vibration is achieved. The torsional vibration adjustment device based on magnetorheology is simple and compact in structure, different degrees of torsional vibration can be actively and continuously adjusted in real time, and a good torsional vibration reduction effect is achieved.

Description

technical field [0001] The invention relates to a torsional vibration regulating device, in particular to a torsional vibration regulating device based on magnetorheology. Background technique [0002] When a rotating machine performs a whirling motion, torsional vibrations will inevitably occur in the transmission system or the rotary rotor. For example, the acceleration and deceleration of the car during driving will cause the torsional vibration of the transmission system, which will cause structural vibration of the car and noise inside the car. , which affects the overall ride comfort of the car, and the torsional vibration can also cause damage to the engine crankshaft due to fatigue failure, especially at high speeds; The load disturbance will cause the torsional moment of the rolling mill transmission system to change drastically, resulting in torsional vibration, which seriously affects the quality of the rolled plate. Therefore, the torsional vibration adjustment d...

AI Technical Summary

Problems solved by technology

[0002] When a rotating machine performs a whirling motion, torsional vibrations will inevitably occur in the transmission system or the rotary rotor. For example, the acceleration and deceleration of the car during driving will cause the torsional vibration of the transmission system, which will cause structural vibration of the car and noise inside the car. , which affects the overall ride comfort of the car, and the torsional vibration can also cause damage to the engine crankshaft due to fatigue failure, especially at high speeds; The load disturbance will cause the torsional moment of the rolling mill transmission system to change drastically, resulting in torsional vibration, which seriously affects the quality of the rolled plate. Therefore, the torsional vibration adjustment device is very necessary to improve the torsional vibration

[0003] In the prior art, rubber torsional vibration dampers, metal spring torsional vibration dampers and silicon oil torsional vibration dampers are often used for the torsional vibration of rotating machines. These torsional vibration dampers can effectively suppress torsional vibrations, but these torsional dampers The vibrator cannot be adjusted adaptively, and the effect is not very ideal in actual use

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