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Bearing constant-pressure pretightening device and selective assembly method thereof

A technology of constant pressure preload and bearing, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of light load slippage and wear, etc., and achieve the effect of convenient and quick adjustment

Active Publication Date: 2013-03-20
CHINA HANGFA SOUTH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a bearing constant pressure preloading device and its matching method, so as to solve the problem of light load slipping or severe wear caused by unloading and load reversing of the axially preloaded axial load bearing during the loading process. and other technical issues

Method used

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  • Bearing constant-pressure pretightening device and selective assembly method thereof
  • Bearing constant-pressure pretightening device and selective assembly method thereof
  • Bearing constant-pressure pretightening device and selective assembly method thereof

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Embodiment Construction

[0021] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0022] see figure 1 , the present invention provides a bearing constant pressure preloading device, which includes a fixed first bearing 1 , a second bearing 2 that can be axially adjusted and moved, and a preload assembly 3 that abuts against the free end of the second bearing 2 . Among them, the first bearing 1 is fixedly arranged between the rotating shaft and the stator 4 to bear the load; the second bearing 2 is arranged between the rotating shaft and the stator 4 and is adjustable in the axial direction; the preload assembly 3 is a compressible and stretchable elastic assembly , for bearing preload, and the preload F 0 It is transmitted to the second bearing 2 and the first bearing 1 in the form of deformation. Both the first bearing 1 and ...

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Abstract

The invention relates to a bearing constant-pressure pretightening device and a selective assembly method thereof, wherein the bearing constant-pressure pretightening device comprises a first bearing, a second bearing and a preloading component; the first bearing is fixedly arranged; the second bearing is available for adjusting axial adjustment activities; the preloading component abuts against a free end of the second bearing; the preloading component is a compressible elastic component; and the first bearing and the second bearing are an angular contact ball bearings respectively. With the adoption of the bearing constant-pressure pretightening device provided by the invention, the free end of an outer ring of the second bearing abuts against the compressible preloading component; the preloading component enables the first bearing and the second bearing to be always kept without load direction change during the process of loading work loads F; therefore, the phenomena of light load slip or severe abrasion and the like frequently occurring to the bearings during the process of unloading the loads with direction change are prevented; in addition, the preloading component can adjust the compression amount of an elastic gasket conveniently and fast through the arrangement of adjusting washergaskets of different numbers, so that the required bearing pretightening is obtained; and the free end of the second bearing is adjustable along the axial direction, so that the affection of temperature on the bearing preload can be automatically eliminated.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a bearing constant pressure pretensioning device. In addition, the present invention also relates to a matching method comprising the above bearing constant pressure preloading device. Background technique [0002] The existing axial preload schemes of angular contact ball bearings are mainly axial load sharing, see image 3 , the axial load is prepared by utilizing the compressibility of the elastic element 73 and the bidirectional load-carrying characteristics of the double-half inner ring angular contact ball bearings 71 and 72. The first end of the outer ring of the bearing 71 is fixed, and the second end is connected with the elastic element 73 The first end of the outer ring of the bearing 72 is connected, and the second end of the outer ring of the bearing 72 is a free end. Calculated preload F during assembly 0 Two bearings 71,72 are preloaded; see Figure 4 , the working load ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P11/00
Inventor 关辉彭煜
Owner CHINA HANGFA SOUTH IND CO LTD
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