Self-aligning roller bearing split-type retainer and design method thereof

A self-aligning roller bearing and design method technology, applied in the field of bearings, can solve problems such as short life, large pocket machining error, and weak cage strength

Inactive Publication Date: 2012-06-20
洛阳瑞成轴承有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the design of light and wide series bearings requires that the outer diameter of the cage Dc cannot be greater than the inner diameter of the outer ring D1, the thickness of the cage is usually designed to be thinner, and the strength of the cage is relatively weak.
During processing, the distance between the center of the pocket bottom of the cage and the outer diameter is very small, and the center of the drill bit is unstable, which often leads to large machining errors

Method used

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  • Self-aligning roller bearing split-type retainer and design method thereof
  • Self-aligning roller bearing split-type retainer and design method thereof
  • Self-aligning roller bearing split-type retainer and design method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031]The number Z of the pockets on one side of the cage is an even number, which can be divisible by 2 but not by 4, that is, when the remainder is 2 after being divided by 4, the right half of the cage 6 is rotated 90° clockwise or counterclockwise, and the axial direction is staggered Cut out 15, align the center of the beam 9 of the right half 6 of the cage with the center of the pocket 10 of the left half 5 of the cage, clamp and fix the left half 5 and right half 6 of the cage, and drill connection hole. The connection hole is located at the off-center position at the bottom of the pocket hole of the cage. The connection hole is composed of 8 counterbores 13, threaded holes 12, and at least 4 pin holes 11. Among them, 8 threaded holes 12 and 8 counterbores 13 are matched and drilled with 8 7 inner hexagon screws are connected, 8 pairs of connecting holes are located near the axial section 15 and reconnected after staggering, 8 counterbores 13 are located on the right ha...

Embodiment 2

[0033] When the number of pockets on one side of the cage can be divisible by 4, the left half 5 and right half 6 of the cage are cut symmetrically along the central axis of the pockets, and the right half of the cage is rotated 90°± clockwise or counterclockwise (180° / Z), stagger the axial section 15, make the center of the beam 9 of the right half 6 of the cage align with the center of the pocket 10 of the left half 5 of the cage, and drill the connection hole. The rest of the installation process is the same as in Embodiment 1.

Embodiment 3

[0035] The number Z of the pockets on one side of the cage is an odd number, and when the remainder is 1 after being divided by 4, the left half 5 and the right half 6 of the cage are cut axially along the center of the pockets, and the cut positions are separated by 180°± (180° / Z), the right half of the cage rotates 90°+(90° / Z) clockwise or counterclockwise, staggers the axial cut 15, and aligns the center of the beam 9 of the right half of the cage 6 The center of the pocket hole 10 of cage left half part 5 is equipped with drilling connecting holes. The rest of the installation process is the same as in Embodiment 1.

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Abstract

The invention discloses a self-aligning roller bearing split-type retainer and a design method thereof. The outer diameter of the retainer is increased based on a current double-claw integral solid retainer, so that the outer diameter dimension Dc of the retainer is bigger than the inner diameter dimension of an outer ring; the middle part of the retainer is split into a left half part and a right half part from the middle part, and then split into two halves from the centre of a pocket hole along the axial direction of the left half part and the right half part of the retainer; the right half part of the retainer is rotated by 90 degrees clockwise or clockwise to stagger the axial split part, so that the centre of a beam on the right half part of the retainer is aligned to the centre of the pocket hole on the right half part of the retainer, and drilled with a connecting hole in a matched manner; four parts respectively formed in the radial direction and the axial direction of the retainer are placed between the inner ring and the outer ring of the bearing, and then rotate out with the inner ring from an outer ring roller, and finally are connected together by a plurality of inner hexagonal bolts and spring pins to form an integer. The retainer has high strength and high reliability, so that the bearing has high carrying capacity in the axial direction and the radial direction, and operating stability.

Description

technical field [0001] The invention belongs to the technical field of bearings, in particular to a split cage of a spherical roller bearing and a design method thereof. Background technique [0002] At present, spherical roller bearings are generally composed of inner ring 4, outer ring 1, rolling elements 2 and cage 3, such as figure 1 As shown, the self-aligning roller bearing can be self-aligning, and mainly bears radial loads, but also has a high axial load capacity. Spherical roller bearings are widely used in steelmaking, steelmaking, papermaking, shipping, electric power and other industries due to their high load carrying capacity, good anti-vibration performance, and the ability to compensate for concentricity errors caused by installation and shaft deformation. Converter, continuous casting machinery, papermaking machinery, hoisting machinery, reducer, vibration machinery and other mechanical equipment. [0003] The cage of the existing spherical roller bearing ...

Claims

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Application Information

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IPC IPC(8): F16C33/48F16C23/08
Inventor 魏启明王黎峰王宇凡李曙东
Owner 洛阳瑞成轴承有限责任公司
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