Transmission method of electric motor of coiling machine

Abstract

The invention provides a method for transmitting a motor of a reeling machine in a cold mill train line, which belongs to the field of metallurgical equipment. The method is characterized in that a large motor (1) and the reeling machine body (7) are connected through a disengageable shaft coupling (5); the disengageable shaft coupling (5) is connected with a shifting fork hydrocylinder (2); when large tensile force is adopted, the shifting fork hydrocylinder (2) extends to be connected with the reeling machine body (7), and the large motor and a small motor work simultaneously; when small tensile force is adopted, the shifting fork hydrocylinder (2) is contracted, the large motor (1) is separated with the reeling machine body (7), at that time, the large motor (1) does not work, and the small motor (3) drives the reeling machine body (7) to work; and extension and contraction positions of the shifting fork hydrocylinder (2) are inspected by a proximity switch (6), and the signals are transmitted to an electrical system to realize interconnected control. The method has the advantages of convenience, safe and reliable performance, low investment and energy consumption.

Description

technical field [0001] The invention belongs to the field of metallurgical equipment, and relates to a coiler motor transmission method in the operation line of a cold rolling mill. Background technique [0002] In the four-high high-precision cold rolling mill production line, the ratio of the thickness of the incoming material to the finished product is often very large. When rolling a thick strip, it is hoped that the coiler uses a larger tension. The mill must use a smaller tension, so the range of tension changes during rolling is also large. [0003] The current domestic method is to design the gear box of the coiler as a shifting form to match the motor power; or the coiler does not shift gears to increase the motor power. The disadvantage of the first method is: the gear box of the coiler is more complicated and bulky, which causes the increase of manufacturing cost and the inconvenience of assembly and maintenance; Very good economy; at the same time, due to the i...

AI Technical Summary

Problems solved by technology

The disadvantage of the first method is: the gear box of the coiler is relatively complicated and bulky, which causes the increase of manufacturing cost and the inconvenience of assembly and maintenance; the disadvantage of the second method is: the increase of motor power caused by the increase of motor power consumption, without Very good economy; at the same time, due to the increase of the motor rotor's moment of inertia due to the increase of the motor power, it is very difficult to control the control accuracy of the strip tension and the thickness accuracy of the strip during thin strip rolling

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