Device and method for disengaging detecting safe coupling of roller mill main axle

Abstract

A disengagement detection device for a safety coupling of a main shaft of a rolling mill, including a reflector, which is arranged on the disengagement side surface of the safety coupling of the upper and lower rolls of the rolling mill, and the disengagement side surface of each safety coupling There are at least two reflectors; two photoelectric components are arranged on the entrance side of the rolling mill and correspond to the safety couplings of the upper and lower rolls respectively, and emit light to the safety couplings and receive the reflected light of the reflectors; signal processing The controller receives and processes the signal of the photoelectric component, and performs alarm and shutdown control. The method of the present invention includes: during the operation of the rolling mill, using two photoelectric components to emit light on the disengaged side of the safety coupling of the upper and lower rolls, and receiving the reflected light of the reflective plate arranged on the safety coupling; using a signal processing controller Process the signal of photoelectric components, timely alarm and shutdown control. The device and method can quickly detect the disengagement of the safety coupling, is simple, convenient, accurate and stable, easy to maintain, and has a certain fault tolerance.

Description

technical field [0001] The present invention relates to detection equipment and technology for protecting the main shaft of a rolling mill, more specifically, to a disengagement detection device and method for a safety coupling of a main shaft of a rolling mill. The safety coupling can be quickly detected by using the device and method disengaged. Background technique [0002] During steel rolling in a steel mill, see figure 1 As shown, the main shaft of the thick plate rolling mill includes upper and lower work rolls 1 and upper and lower cardan shafts 2, the work rolls 1 are respectively connected to one end of the cardan shaft 2, and the other ends of the cardan shaft 2 are respectively connected to the corresponding motor 3 , through the rotation of the motor 3, the work roll 1 is driven to rotate, so that the thick plate rolling mill works. A hydraulic safety coupling 4 is set between the cardan shaft 2 and the motor 2 to protect the main shaft of the rolling mill, se...

AI Technical Summary

Problems solved by technology

However, when the sum of these two forces is not enough to completely drive the disengaged roll, the work roll will move relative to the surface of the steel plate, resulting in slippage

The slipping is likely to cause scratches on the roll surface of the roll, resulting in an increase in the amount of grinding of the work roll, which directly affects the profitability of the enterprise

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