An adaptive multi-stage torsional vibration damping device based on electrorheology

Abstract

The self-adaptive multi-stage torsional vibration damping device based on electrorheology of the present invention, the spline shaft and the transmission disc rotate synchronously, and the transmission disc is elliptical; the vibration damping disc is coaxially sheathed on the transmission disc, and the vibration damping disc is provided with two sets of symmetrical conversion devices , electrorheological fluid chamber, diversion chamber, main damping chamber, electric field chamber and return chamber, two arc-shaped electrode plates are located on the upper and lower sides of the main damping chamber; the rotation of the transmission disc can drive the conversion device to move up and down, and the conversion device can push When the piezoelectric ceramic plate rotates, the arc-shaped magnet connected to the piezoelectric ceramic plate rotates accordingly, repelling the other pair of arc-shaped magnets and then pushing the arc-shaped push rod and the arc-shaped piston to rotate, squeezing the electrorheological fluid in the electrorheological liquid chamber. The electrorheological fluid enters the diversion cavity through the one-way valve, and then flows into the main damping cavity. The electric field generated by the electric field cavity changes adaptively according to the strength of the vibration, and the damping of the electrorheological fluid flowing into the main The strength of the electric field is adaptively changed; the electrorheological fluid that completes the damping effect flows into the return cavity, and then returns to the electrorheological fluid cavity.

Description

technical field [0001] The invention belongs to the technical field of vibration damping devices for rolling mills, and in particular relates to an electrorheological-based adaptive multi-stage torsional vibration damping device. Background technique [0002] With the rapid development of modern industry, the demand for high-quality strips in all walks of life is also increasing, and torsional vibration is an important factor affecting the quality of strips. The rolling mill drive system will inevitably generate torsional vibration during operation. For example, when rolling steel, it will bite into the rolled piece, throw the rolled piece, slip, gap impact, mechanical resonance and electromechanical resonance. The lighter torsional vibration will cause the surface of the roll to wear, and then affect the quality of the strip; the severe torsional vibration will not only generate a lot of noise, but also cause accidents such as broken strips, piles of steel, and broken trans...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the metal springs and rubber materials on the market are used to slow down the torsional vibration. Although these damping devices can slow down the torsional vibration, they cannot adaptively reduce the torsional vibration, and the transmission is not stable enough.

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