Method for adjusting roll axial direction of multi-diagonal roll straightener

Abstract

The invention discloses a method for adjusting the roll axial direction of a multi-diagonal roll straightener, and an upper straightening roll adjusting device of the straightener is set into an axial adjusting mode and a sidewise fixing and vertical adjusting mode. The method comprises the following steps: a, before an axial adjustable bearing seat moves, propping the bearing seat by adjusting a vertical adjustable bolt (7) on a C-shaped bracket; b, loosening the bolt (1) connecting the bearing seat and a turnplate (6); c, realizing axial adjustment of the upper straightening roll device respectively by an axial adjustable bolt A (8) and an axial adjustable bolt B (9) when the adjustable bearing seat moves axially; and d, tightening the bolt connecting the bearing seat and the turnplate (6) firmly when adjustment is in place. The invention has convenient adjustment operation and assembly and disassembly of an upper roll device, can ensure good contact of the bearing seat bottom surface and the turnplate surface so as to avoid straightening precision from being influenced by shock produced in the working process of the straightener, leads the two bearing seats to work synchronously, and has reliable operation and strong market competitiveness and promotion value.

Description

technical field [0001] The invention relates to the technical field of straightening machines, in particular to a method for adjusting the axial direction of upper rollers of a multi-skewing-roller straightening machine for tubes and bars. technical background [0002] At present, the axial adjustment device is mainly used in pipe and bar straightening machines in the metallurgical industry. The main function is to ensure the centering and concentricity of multiple straightening rollers. During the straightening process, the round material passes through multiple pairs of staggered straightening rollers in sequence. The adjustment of the straightening rollers directly affects the relationship between the round material and the straightening rollers during straightening. Contact conditions have a direct impact on product quality. In my country's metallurgical production enterprises, the axial adjustment device of the straightening roller has the following deficiencies in use...

AI Technical Summary

Problems solved by technology

In my country's metallurgical production enterprises, the axial adjustment device of the straightening roller has the following deficiencies in use: 1. Since the upper roller device is very heavy, two support devices are required for axial adjustment, and the upper roller device is generally lifted by a jack. However, due to limited space, the supporting device cannot support the center of gravity of the upper roller device and cannot be fixed itself, which makes it difficult to adjust the upper roller device

2. When the bearing seat is moved horizontally and axially, the supporting device will tilt and fall with the movement of the bearing seat, causing the bearing seat to tilt and causing uneven force on the bolts connected to the turntable

After the adjustment is in place, it is very difficult to tighten the connecting bolts, and it is difficult to ensure good contact between the bottom surface of the bearing seat and the plane of the turntable, which will cause vibration when the straightener is working and affect the straightening accuracy

3. When the bearing seat is moved horizontally and axially, the two bearing seats move asynchronously, which increases the difficulty of adjustment

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