Back-to-back mounting method and pre-fastening structure of angular contact ball bearings for reducer

A technology for angular contact ball bearings and installation methods, which is applied in the directions of rolling contact bearings, shaft installation, bearing assembly, etc., and can solve the problems of difficult assembly of bearings that meet the requirements of use, low efficiency, etc.

Active Publication Date: 2016-12-14
LUOYANG BEARING RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, only a certain pretightening force can be selected based on experience and the bearing is installed with the selected pretightening force, and then the installed bearing is tested to determine whether the pretightening force is suitable, which is not only inefficient, but also It is even more difficult to assemble assembled bearings that meet the needs of use

Method used

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  • Back-to-back mounting method and pre-fastening structure of angular contact ball bearings for reducer
  • Back-to-back mounting method and pre-fastening structure of angular contact ball bearings for reducer
  • Back-to-back mounting method and pre-fastening structure of angular contact ball bearings for reducer

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Embodiment Construction

[0017] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0018] The specific embodiment of the back-to-back angular contact ball bearing preload structure for the reducer of the present invention is as follows: Figure 1 to Figure 5 As shown, it includes a reducer housing 1 with an inner cavity whose axis extends along the front-to-back direction in the middle. The contact ball bearing 7 is also provided with a support flange for cooperating with the reducer housing to fix the above two bearings in the inner cavity. The wide side faces of the outer rings of the two bearings are arranged opposite to each other so that the load line of the two bearings is formed in an "O" shape and assembled back to back.

[0019] The front end of the reducer housing 1 is provided with a first concave cavity 11 along its inner wall surface, and the rear end of the reducer housing 1 is provided with a second concave cavity 12 al...

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Abstract

The invention relates to a back-to-back mounting method and a pre-fastening structure of angular contact ball bearings for a reducer, and the pre-fastening structure can provide a pre-fastening force for the back-to-back assembled angular contact ball bearings. When the back-to-back mounting method is adopted to mount the bearings, a pre-fastening force F0 required by the bearings is determined according to the models of the bearings, then the deformation quantity delta required by the bearings is calculated according to the pre-fastening force F0 required by the bearings, and finally, the thickness d of gaskets required to be cushioned is determined according the dimensional matching relationship between all adaptive parts during installation of the bearings. After the finally selected gaskets, bearings and other parts are assembled in place according to the designed positions, the pre-fastening force of the bearings can be equal to the designed value F0.

Description

technical field [0001] The invention relates to an installation method of a back-to-back angular contact ball bearing for a reducer and a pre-tightening structure thereof. Background technique [0002] For the RV reducer, the main bearing installed in the reducer housing (that is, the bearing housing) to undertake the role of rotating support usually uses angular contact ball bearings, and in order to improve the bearing capacity and rigidity of the bearing, two or more sets are usually used. Single row angular contact ball bearings are used in combination. According to different application conditions, the assembly methods of angular contact ball bearings can be divided into three types: "back-to-back assembly", "face-to-face assembly" and "tandem assembly". Force, so that the inner and outer rings of the bearing are in a compressed state and the support stiffness of the bearing can be adjusted to improve its running accuracy and reduce running noise. However, the specifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C35/07F16C35/073F16H57/02
CPCF16C35/07F16C35/073F16C2226/62F16H57/02F16H2057/02026F16C19/163F16C19/548F16C25/06
Inventor 张振强王东峰朱川峰杨浩亮尹延经敖正红张浩洋徐海利
Owner LUOYANG BEARING RES INST CO LTD
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