Torsional vibration suppression device for rolling mill

A technology of suppressing device and rolling mill, applied in the direction of metal rolling, metal rolling, manufacturing tools, etc., can solve problems such as poor effect, and achieve the effect of horizontal vibration suppression

Inactive Publication Date: 2012-10-31
通化钢铁股份有限公司 +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

At present, the methods of suppressing the vibration of the continuous rolling mill mainly focus on the two aspects of the process and the mechanical ...

Method used

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  • Torsional vibration suppression device for rolling mill
  • Torsional vibration suppression device for rolling mill
  • Torsional vibration suppression device for rolling mill

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Experimental program
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Embodiment Construction

[0015] Such as figure 1 As shown, the vibration suppressor of the present invention is composed of input terminals 1 and 2, output terminals 3 and 4, casing 5, upper cover 6, printed circuit board 7 and screws 8. Connecting terminals 1 and 2 are input terminals of the printed circuit board 7 , connecting terminals 3 and 4 are output terminals of the printed circuit board, and the printed circuit board 7 is fixed on the casing 5 by screws 8 . Finally, the upper cover 6 is buckled on the shell 5 with an interference fit.

[0016] Such as figure 2 As shown, the present invention is composed of a motor speed converter, a motor current conversion, a torsional vibration suppressor and a roller and a motor speed difference converter. When the main transmission system of the continuous rolling mill generates torsional vibration, the torsional vibration suppressor receives the signals from the motor speed converter and the motor current converter, and the torsional vibration suppres...

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PUM

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Abstract

The invention provides a torsional vibration suppression device for rolling mill, belonging to the field of automatic control of a rolling mill. The torsional vibration suppression device comprises a motor current transformer, a motor rotation speed transformer, a torsional vibration suppressor and a roller-motor speed difference transformer. When a main transmission system of a continuous rolling mill has torsional vibration, the torsional vibration suppressor can simulate a compensating signal with the same frequency and amplitude as the torsional vibration and can send the compensating signal to an input end of a current adjustor in a main transmission control so that current of a motor generates vibration to suppress the torsional vibration of the main transmission system, the aim of suppressing the horizontal vibration of the rolling mill is reached, and chatter marks generated by a roller and band steel are suppressed further.

Description

technical field [0001] The invention relates to a rolling mill torsional vibration suppressing device, which belongs to the field of rolling mill automation control. Background technique [0002] Many continuous rolling mills at home and abroad frequently experience strong torsional vibration during the rolling process, which is manifested as coupled vibration such as horizontal vibration of the roll system, torsional vibration of the transmission system, and vertical vibration of the working stand during the rolling process, accompanied by strong noise. The rolling mill is a typical electromechanical-hydraulic complex system, and its dynamic state is closely related to the coupling effect between various subsystems. Its vibration mechanism is complex and its forms are diverse. The reason is not only because the mechanical structure and control system of the continuous rolling mill are very complicated, but also because there are many process parameters in the rolling proces...

Claims

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Application Information

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IPC IPC(8): B21B28/00
Inventor 闫晓强李永奎孙志辉宋译红王文瑞邹新春刘岩
Owner 通化钢铁股份有限公司
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