Laser detection method and device for vibration of continuous casting mold

Abstract

The invention relates to automatic detection of the metallurgical industry and aims at providing a laser detection method and device for the vibration of a continuous casting mold. The method is that a horizontal / vertical benchmark module is arranged on a mold platform, laser transmitted by a laser displacement sensor is reflected by the surface of the sensor to a receiving surface, so that a light spot position signal changing along with the vibration of the mold is obtained; then the light spot position signal is transmitted to a signal processor of a lower computer to complete signal conversion, filtering, signal conditioning and pretreatment; and then the obtained signal is transmitted to a system controller of an upper computer to perform analysis and computation to obtain speed and acceleration data for the analysis of the vibration polarization situation of the mold. According to the laser detection method and the device, the phenomena of complexity in dismounting and easily caused environmental effect in a contact type measurement method are avoided, the dismounting is simple and convenient, and the measurement accuracy can be guaranteed easily. Different measurement benchmark surfaces can be freely and quickly selected; and the transportability of data transformation is strengthened by the conversion from a serial port to a USB. An excellent machine interface is provided, and an operator can master the operation easily.

Description

technical field [0001] The invention relates to the field of automatic detection in the metallurgical industry, and more specifically relates to a laser detection method and device for measuring crystallizer vibration for molten steel continuous casting production equipment. Background technique [0002] The crystallizer is the key equipment of the continuous casting machine, which is used to form the billet in the continuous casting of steel. In the continuous casting of iron and steel, the vibration of the crystallizer can force the slab to be demoulded, which is beneficial to the lubrication of the slab and eliminates bonding, thereby improving the surface quality of the slab. But whether the mold vibration parameters are selected properly or not is related to whether the continuous casting slab can be produced normally and the surface quality of the continuous casting slab is good or bad. In order to obtain the actual vibration parameters, the traditional contact-type m...

AI Technical Summary

Problems solved by technology

Although the contact-type manual stopwatch detection method can achieve a certain degree of state detection of the crystallizer, due to the use of contact detection, the contact probe used is easy to wear, has a short service life, and affects workers' operations in high-temperature and humid work sites. The efficiency is low, the labor cost is high, and the equipment hardware integration is low, it is extremely inconvenient to use, there are large errors, and it has little guiding significance for actual steelmaking production

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