JPS60185724U

JPS60185724U - Bearing fixing device

Info

Publication number: JPS60185724U
Application number: JP7397184U
Authority: JP
Inventors: 晋哉中村
Original assignee: 日本精工株式会社
Priority date: 1984-05-22
Filing date: 1984-05-22
Publication date: 1985-12-09
Also published as: JPS642980Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す装置の断面図、第２
図は第１図における固定用スリーブの断面図である。符号の説明、１は固定用スリーブ、２は軸受、３は軸、
４はスリーブナツト、５はＯリング、６は止めねじ、１
１は隙間保持内径面、１２は固定内径面、１３は油ポケ
ット、１４は隙間形成内径面、１５は油室、１６は油溝
、１７はねじ部、１８はねじ穴。Figure 1 is a sectional view of a device showing one embodiment of this invention;
The figure is a sectional view of the fixing sleeve in FIG. 1. Explanation of symbols: 1 is the fixing sleeve, 2 is the bearing, 3 is the shaft,
4 is a sleeve nut, 5 is an O-ring, 6 is a set screw, 1
1 is a clearance retaining inner diameter surface, 12 is a fixed inner diameter surface, 13 is an oil pocket, 14 is a clearance forming inner diameter surface, 15 is an oil chamber, 16 is an oil groove, 17 is a threaded portion, and 18 is a threaded hole.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

固定用スリーブを用いて軸受を固定する際、この固定用
スリーブを加熱膨張させた状態で所要の軸に嵌合させ、
前記固定用スリーブが常温となってから、油圧を利用し
て再び固定用スリーブを膨張させ、この固定用スリーブ
に軸方向の所要圧力を解除する軸受の固定装置において
、固定用スリーブは、その固定時においても相手部材で
ある軸との間で隙間が生ずるような内径寸法を有する隙
間保持内径面と、前記隙間保持内径面に連続し固定用ス
リーブの固定時には締りばめとなるような内径寸法を有
する固定内径面と、前記固定内径面に連続し相手部材で
ある軸の段部に対応して設けられた周溝状の油ポケツト
部と、前記油ポケツト部に連続する隙間形成内径面と、
軸方向の中央部に位置する油圧用の油室と、この油室お
よび前記周溝状の油ポケツト部に導通ずる油溝と、一端
側の外径部に設けられたねじ部と、このねじ部の複数個
所に放射状に設けられたねじ穴とを備え、前記固定用ス
リーブのねじ部に螺合するめねじ部を有するスリーブナ
ツトは、内側面に前記固定用子リーブと協働してＯリン
グを装着するための−０リング固定部と、スキマ保持内
径面とを備え、前記固定用スリーブの複数個所のねじ穴
に螺合する固着用部材は、固定用スリーブを軸に固定後
、その先端が軸の外周部における前記ねじ大の対応位置
　　　′に設けられた凹部に圧接し、固定用スリーブの
軸方向の変位を防止することを特徴とする軸受の固定装
置。When fixing a bearing using a fixing sleeve, the fixing sleeve is heated and expanded and fitted onto the desired shaft.
In a bearing fixing device that expands the fixing sleeve again using hydraulic pressure after the fixing sleeve reaches room temperature and releases the required pressure in the axial direction on the fixing sleeve, the fixing sleeve A gap retaining inner diameter surface having an inner diameter dimension that creates a gap with the shaft, which is a mating member, even when the fixing sleeve is fixed, and an inner diameter dimension that is continuous with the clearance retaining inner diameter surface and provides an interference fit when the fixing sleeve is fixed. a fixed inner diameter surface having a fixed inner diameter surface, a circumferential groove-shaped oil pocket portion continuous with the fixed inner diameter surface and provided corresponding to a stepped portion of a shaft that is a mating member, and a gap forming inner diameter surface continuous with the oil pocket portion. ,
An oil chamber for hydraulic pressure located in the center in the axial direction, an oil groove that communicates with this oil chamber and the circumferential groove-shaped oil pocket, a threaded portion provided on the outer diameter portion of one end, and this screw. The sleeve nut has screw holes provided radially at multiple locations in the sleeve nut, and has a female threaded portion that is screwed into the threaded portion of the fixing sleeve, and an O-ring is provided on the inner surface of the sleeve nut in cooperation with the fixing child sleeve. The fixing member is provided with a -0 ring fixing part for attaching the fixing sleeve and a gap-holding inner diameter surface, and is screwed into the plurality of screw holes of the fixing sleeve. After fixing the fixing sleeve to the shaft, the fixing member is A fixing device for a bearing, characterized in that the fixing sleeve is in pressure contact with a recess provided at a position corresponding to the screw size on the outer circumference of the shaft, thereby preventing displacement of the fixing sleeve in the axial direction.