Online mounting method for bearing seats of wrapper roller frame of hot rolling coiler

Abstract

The invention discloses an online mounting method for bearing seats of a wrapper roller frame of a hot rolling coiler. The online mounting method comprises the steps that firstly, new bearing seats are manufactured, and process positioning holes are machined at the center positions of original bearing seats at an operation side memorial archway and a transmission side memorial archway to serve aspositioning datum of mounting of the new bearing seats; the old bearing seats are demounted, process false shafts are manufactured and mounted in the process positioning holes, and the new bearing seats are mounted on the process false shafts and welded to the operation side memorial archway and the transmission side memorial archway; the process false shafts are demounted, tool brackets are welded to the inner sides and the outer sides of the transmission side memorial archway and the operation side memorial archway, boring rods of machining equipment penetrate into the tool brackets and theprocess positioning holes, and the positions of the boring rods are locked; and inner holes of the new bearing seats are machined through the machining equipment to reach the designed size, the concentricity of the bearing seats on the two sides is ensured, after machining, the machining equipment and the tool brackets are demounted, the sizes of the centers of the bearing seats are retested to meet the design precision requirements, and mounting of the new bearing seats is completed. According to the online mounting method, the structural transformation demands of the coiler are met, and theposition precision of a wrapper roller is ensured.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to an on-line installation method for a frame bearing seat of an auxiliary roll of a hot rolling coiler. Background technique [0002] The coiler is one of the key core equipment of the hot rolling production line. Due to the deviation of the position accuracy of the coiling roll, the coiler will seriously affect the surface quality of the strip and the coil shape quality of the finished coil. The position deviation of the auxiliary coiling roll is mostly caused by the wear of the bearing hole. In order to eliminate the above-mentioned defects, improve the surface quality of the strip steel and the coiling accuracy, the coiler Key points: The connection between the frame of the winding aid roll and the frame of the coiler is changed from a sliding bearing to a rolling bearing, which can effectively improve the position of the winding aid roll by changing the shortcomings of the s...

AI Technical Summary

Problems solved by technology

The position deviation of the auxiliary coiling roll is mostly caused by the wear of the bearing hole. In order to eliminate the above-mentioned defects, improve the surface quality of the strip steel and the coiling accuracy, the coiler Key points: The connection between the frame of the winding aid roll and the frame of the coiler is changed from a sliding bearing to a rolling bearing, which can effectively improve the position of the winding aid roll by changing the shortcomings of the sliding bearing such as large fit clearance, low precision, difficult lubrication and maintenance, and poor action sensitivity. precision

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