Rapid detection method for rotation direction of roller-way motor

Abstract

The invention provides a rapid detection method for rotation direction of a roller-way motor. An iron block is fixed on a roller-way motor shaft, one side of the roller-way motor shaft is provided with a Hall proximity switch A and a Hall proximity switch B in a vertical manner, and the Hall proximity switch A and the Hall proximity switch B are connected with a PLC. When the iron block on the roller-way motor shaft rotates to an m point to trigger the Hall proximity switch A and an n point to trigger the Hall proximity switch B, the PLC records voltage signals of the Hall proximity switch A and the Hall proximity switch B respectively, and the rotation direction of the roller-way motor can be judged rapidly through comparing the time difference value of the voltage signals of the Hall proximity switch A and the Hall proximity switch B. The rapid detection method can be used for detecting rotation direction of the roller-way motor rapidly, shortens the detection time, and guarantees that the judgment results are accurate and errorless, thereby effectively avoiding quality defects such as lower surface scratching of strip steel because the rotation direction of a roller way is not consistent with the moving direction of the strip steel, and improving the surface quality qualified rate and working efficiency of the unit.

Description

technical field [0001] The invention belongs to the field of mechanical equipment, and in particular relates to a method for quickly detecting and judging the rotation direction of a conveying roller table motor. Background technique [0002] During the production process of hot-rolled sheet and strip, it is necessary to transport the strip through the rotating conveying roller table. Due to the large number of conveying rollers and the high speed of operation, it is impossible to quickly and accurately judge the direction of rotation of the rollers by visual methods. Therefore, the problem of scratches on the lower surface of the strip due to the reverse connection of the motors of the rollers occurs from time to time, not only It reduces the qualified rate of the surface quality of the strip, and delays the working time, which directly affects the smooth progress of production. Contents of the invention [0003] The invention aims to provide a method for quickly detecti...

AI Technical Summary

Problems solved by technology

Due to the large number of conveying rollers and the high speed of operation, it is impossible to quickly and accurately judge the direction of rotation of the rollers by visual methods. Therefore, the problem of scratches on the lower surface of the strip due to the reverse connection of the motors of the rollers occurs from time to time, not only It reduces the qualified rate of the surface quality of the strip, and delays the working time, which directly affects the smooth progress of production

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