A method and system for measuring intersection angle of pc rolling mill

Abstract

The invention discloses a method and system for measuring the intersection angle of a PC rolling mill, belonging to the field of measurement. It fixes a flat circular mirror at the axial center position of the working side end of a pair of tested rolls in the PC rolling mill, and sets a measuring platform on the ground outside the working side end of the tested roll. The measuring platform is equipped with two parallel guide rails and a For the projection screen, a laser distance sensor is set on two parallel guide rails, and a CCD image sensor is set outside the projection screen; the computer processing system calculates according to the distance from the projection screen to the measuring point on the measurement platform and the position parameters of the light spot on the projection screen. In this way, the angle between the incident laser light and the reflected light can be accurately calculated, and then the real-time intersection angle of the measured roll can be obtained. Without affecting the normal operation of the rolling mill, it realizes real-time online tracking of the crossing angle of the rolls, and determines the health status of the crossing angle adjustment system according to the change trend of the difference between the measured value and the set value, and prevents the crossing angle from being caused by deviations in the setting of the crossing angle. Strip steel shape quality problems.

Description

technical field [0001] The invention belongs to the field of measurement, in particular to a method and system for real-time detection of the intersection angle of a PC rolling mill. Background technique [0002] PC rolling mill (Pair crossed rolling mill, also known as roll paired cross rolling mill) through the upper and lower pairs of crossed rolls, the shape of the roll gap formed between the upper and lower work rolls is equivalent to the convexity of the work rolls on the convex surface. The purpose of controlling the shape of the board. The equivalent roll crown depends on the intersection coefficient and the intersection angle between the upper and lower work rolls. For the known rolling mill width and roll diameter, the purpose of controlling the crown can be achieved only by setting the intersection angle. [0003] The PC mill crossing angle setting model calculates the crossing angle and the strip crown and flatness according to the target crown value of the stri...

AI Technical Summary

Problems solved by technology

However, the central position of the measured mirror does not change in this technical solution, and only the angular deflection of a single measured object can be detected, which cannot solve the problem of real-time measurement of roll crossing angles in the production process of the PC rolling mill to be solved by the present invention

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