JPS59155859U

JPS59155859U - Rotating electric machine bearing device

Info

Publication number: JPS59155859U
Application number: JP1983049231U
Authority: JP
Inventors: 山田　繁人
Original assignee: 三菱電機株式会社
Priority date: 1983-04-01
Filing date: 1983-04-01
Publication date: 1984-10-19

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

[Brief explanation of drawings]

第１図は従来の回転電機の軸受装置を示す縦断面図、第
２図は第１図の軸受箱の詳細図、第３図ないし第６図は
この考案の一実施例による回転電機の軸受装置を示すも
ので、第３図は第１の軸受装置の詳細図、第４図は第３
図の大膨張係数支持部材を示す斜視図、第５図は第２の
軸受装置を示す詳細図、第６図は第５図の軸受箱の詳細
図である。図中、１・・・軸、３．４・・・第１、第２のころがり
軸受、９．１０・・・軸受箱、１３・・・大膨張係数支
持部材、１４・・・油溝、１５・・・底面。なお、図中
、同一符号は同一または相当部分を示す。Fig. 1 is a vertical cross-sectional view showing a conventional bearing device for a rotating electrical machine, Fig. 2 is a detailed view of the bearing box shown in Fig. 1, and Figs. 3 to 6 are a bearing for a rotating electrical machine according to an embodiment of this invention. Fig. 3 is a detailed view of the first bearing device, and Fig. 4 is a detailed view of the third bearing device.
FIG. 5 is a detailed view of the second bearing device, and FIG. 6 is a detailed view of the bearing box shown in FIG. 5. In the figure, 1... Shaft, 3.4... First and second rolling bearings, 9.10... Bearing box, 13... Large expansion coefficient support member, 14... Oil groove, 15...Bottom surface. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A bearing device for a rotating electrical machine, comprising a first rolling bearing that pivotally supports the vicinity of one end of a rotor shaft, a second rolling bearing that pivotally supports the vicinity of the other end, and a bearing box that holds each rolling bearing. In this step, a sleeve-shaped support member having a larger coefficient of expansion than the bearing box material is attached to the inner circumferential surface of the bearing box that the outer circumferential surface of the outer race of the first rolling bearing comes into contact with, and the outer race of the second rolling bearing A means to reduce frictional resistance is applied to the inner circumferential surface of the bearing box where the outer circumferential surface comes into contact.
and an axial end face of the second rolling bearing;
A bearing device for a rotating electrical machine, characterized in that a predetermined gap is provided between the bearing box and the inner end surface of a bearing box held therein.