Dummy bar arc starting structure and working method thereof

Abstract

The invention relates to the technical field of continuous casting, in particular to a dummy bar arc starting structure and a working method thereof. The dummy bar is formed by a plurality of groups of arc starting structure units which are connected; each arc starting structure unit comprises a bar body and a transition section; the bar body comprises two identical plates which are overlapped andaligned and are fixedly connected in the center by a connecting column; the two sides of the plates are each provided with two fixing holes; the transition section is a transition plate; the transition plate is correspondingly provided with a fixing hole and an arc starting hole from the middle to the two ends; the diameter of the arc starting hole is larger than that of the fixing hole; the fixing holes in the bar body have the same diameter as the fixing holes in the transition section; the fixing hole, close to the middle, of the bar body is connected with the fixing holes in the transition section through a fixing shaft; the fixing hole, close to the two ends, of the bar body is connected with the arc starting hole in the transition section through an arc starting shaft; the pluralityof arc starting structure units are connected according to the abovementioned connection way; and one end is connected with a dummy bar head shaft. The dummy bar arc starting structure provided by the invention can use the fixing shaft for limiting and preventing lateral bending; and the arc starting shaft is used for starting arc and prevents downward bending.

Description

technical field [0001] The invention relates to the technical field of continuous casting, in particular to an arc starting structure of a dummy bar and a working method thereof. Background technique [0002] In the traditional chain-type dummy bar, the shaft of the traditional chain-type dummy bar is composed of dozens of chain links, and the connections between the dummy head and the chain links, and between the chain links and the chain links are all hinged by pins or bolts. connect. In use, the main working direction is to bend upward as a whole, and finally form a 1 / 4 arc to reach the working state. However, this structure needs to play the role of arcing in a certain running section due to the model, and the total length needs to be within 30 meters due to the model. Due to the influence of arc changes and length during work, there are often two situations of bending down and left and right side bending, which will seriously affect the online use and affect the formi...

AI Technical Summary

Problems solved by technology

However, this structure needs to play the role of arcing in a certain operating section due to the type of model, and the total length needs to be within 30 meters due to the type of model.

Due to the influence of arc changes and length during work, there are often two situations of bending down and left and right side bending, which will seriously affect the online use and affect the forming quality of the drawing

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