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

A method for determining bearing housings, which is applied to the rigid support of bearing components, bearing elements, shafts and bearings, etc., can solve the problems of low efficiency, unsafe and cumbersome bearing housing components and rolls, etc., and achieve simplified assembly steps, The effect of reducing repeated hoisting and improving assembly efficiency

Inactive Publication Date: 2018-09-18
BENGANG STEEL PLATES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

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Embodiment

[0020] The wet skin pass mill of a cold rolling galvanizing line is a single-stand four-high rolling mill, and the bearings are single-stand galvanized skin pass machine bearings. The radial and axial gaskets are determined as follows:

[0021] The axial clearance G given during design is 0.2~0.4, and the middle value is 0.3 during calculation. After calculation and statistics, the range of λ is 0.063~0.12, and the unit of all involved values ​​is mm.

[0022] (1) Assemble the lower box on the operation side of the support roller

[0023] Box No.: 23569090 2#013-2

[0024] Rack position: Operator side down

[0025] Roll number: B04-006

[0026] Bearing number: CZ2641461-004

[0027] Original width of bearing inner ring: 480.135

[0028] a. Bearing assembly in the bearing housing, install the bearing gland, and use the "finger tightening" method to tighten the bolts.

[0029] b. Measure the distance between the gland and the end face of the bearing seat, measure 6 points: ...

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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...

Claims

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Application Information

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IPC IPC(8): F16C35/06G01B21/08
CPCF16C35/06G01B21/08
Inventor 李军霍刚徐利民高兴昌
Owner BENGANG STEEL PLATES
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