Method for determining thicknesses of gaskets for assembling roll to bearing pedestal

Abstract

The invention provides a method for determining thicknesses of gaskets for assembling roll to bearing pedestal. The method comprises the following steps that (1) the thickness of the radial gasket isdetermined, concretely, a bearing is assembled in the bearing pedestal, a bearing gland is mounted, and a bolt is fastened by a ''finger tightening'' method, the distance between each of different points on the bearing gland and the end face of the bearing pedestal is measured, and a mean value is taken and is the thickness of the radial gasket; and (2) the thickness of the axial gasket is determined, concretely, by measuring the width of a bearing inner ring and the length of a to-be-assembled roll neck, the thickness of the desired axial gasket is determined, and the nominal axial gasket thickness Ta is equal to W-L+G, wherein W is the width of the bearing inner ring, L is the length of the to-be-assembled roll neck, and G is the specified axial clearance during design. The gasket thicknesses can be determined directly through measurement and simple operation without hoisting the bearing pedestal or the roll.

Description

technical field [0001] The invention relates to the design field of bearing installation, in particular to a method for determining the thickness of gaskets for assembling rolls in bearing housings. Background technique [0002] At present, the competition among the entire iron and steel enterprises is relatively fierce. In order to win the market, it is necessary to reduce its own production costs to meet the market demand. Improving the technical level of bearing assembly and maintenance of bearing housings, prolonging the service life of bearings, and making them exert their maximum effect can reduce the operating cost of the unit during production, improve the efficiency of bearing housing assembly journals, and ensure the quality and quantity of assembly. key factor in production costs. [0003] In production, four-row tapered roller bearings are widely used in the working roll bearings of rolling mills. The four-row tapered roller bearings themselves can bear the comb...

AI Technical Summary

Problems solved by technology

[0004] If the assembly journal of the bearing seat assembly is assembled according to the above-mentioned conventional method, it is cumbersome and inefficient. In addition, it is not safe to lift the bearing seat assembly and the roll for many times. The root cause of the multiple lifting of the bearing seat assembly during the assembly process is because The length of the assembled roll neck is different, and the width of the bearing inner ring of each chock assembly is different, so the distance between the end face of the bearing inner ring and the end face of the roll neck must be measured after the chock assembly is placed on the roll neck

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