A protection device for the roll gap measurement mechanism of a clamp-type online roll gap meter

Abstract

The invention discloses a protective device of a roll gap measuring mechanism of a tong type online roll gap apparatus. The protective device comprises a box body as well as a first rotary shaft, a second rotary shaft, a pair of measuring arms, an upper spherical surface measuring head, a lower spherical surface measuring head and an angle encoder arranged in the box body, wherein the second rotary shaft is perpendicularly arranged on the bottom surface of the box body; the angle encoder is connected with the bottom end of the second rotary shaft; the first rotary shaft is arranged on the second rotary shaft in a sleeving manner; the first rotary shaft and the second rotary shaft are fixed through a fixing block; the fixing block is fixed in the box body through a fixing bolt; protective plates are arranged on the measuring arms; one ends of the measuring arms are connected with the first rotary shaft and the second rotary shaft respectively, and the other ends of the measuring arms are correspondingly connected with the lower spherical surface measuring head and the upper spherical surface measuring head; and stress pads are arranged between the first rotary shaft and the second rotary shaft, between the first rotary shaft and the fixing block and on the fixing bolt. By means of the protective device, on the condition that the casting machine control program is not modified and additional protective means are not needed the tong type online roll gap apparatus can be used continuously in the complicated slab continuous casting production environment without being damaged.

Description

technical field [0001] The invention relates to the field of continuous casting machine equipment, in particular to a protection device for a roll gap measurement mechanism of a clamp-type online roll gap meter. Background technique [0002] The roll gap of the slab continuous casting value is one of the most important parameters of the casting machine, which directly affects the control of quality defects such as central cracks, segregation, triangular area cracks and corner transverse cracks of the slab. Abnormal roll gaps will also cause fan-shaped segments The service life of the main equipment of the casting machine is low, abnormal damage even leads to vicious accidents such as stagnation of the slab. Under the requirements of quality control of continuous casting slabs and service life improvement of equipment such as sectors, various diagnostic devices for testing the precision of caster roll gap and other parameters have emerged as the times require. The detection ...

AI Technical Summary

Problems solved by technology

[0004] 1. The first type of on-line roll gap meter that replaces the dummy head type has complex structure, difficult maintenance and high price; at the same time, it must be tested when the casting machine is stopped, and even requires a special casting machine operation control program, which affects the operation of the casting machine rate; the input rate of equipment is not high, and the continuous change of the roll gap of the casting machine cannot be obtained. The installation and use of the equipment are inconvenient, and manual disassembly and operation protection are required.

[0005] 2. The second type of pliers (or scissors) online roll gap meter has a relatively single function and relatively weak self-protection ability, and is easily affected by the harsh working conditions of the casting machine, frequent abnormal operations of the casting machine, and accidents. Affected, resulting in failure of the seal, damage to the roll gap measuring arm, etc., and the maintenance cost is also very expensive

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