JPS5831766U

JPS5831766U - Ground brush holding device for rotating electrical machines

Info

Publication number: JPS5831766U
Application number: JP12669081U
Authority: JP
Inventors: 平丸　公三
Original assignee: 三菱電機株式会社
Priority date: 1981-08-26
Filing date: 1981-08-26
Publication date: 1983-03-02

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アースブラシ保持装置の軸方
向から見た正面図、第２図は第１図の線■−■における
部分側断面図、第３図はこの考案に係る回転電機のアー
スブラシ保持装置の一実施例を示す軸方向から見た正面
図、第４図は第３図の線ＩＶ−ＩＶにおける部分側断面
図、第５図は第３図および第４図のアースブラシ部分の
上面図、第６図ａはアースブラシの上面図、第６図すは
アースブラシの正面図である。図において、１はブラケット、２は回転軸、３′は軸受
、４．５は軸受端カバー、４０１は溝、６はアースブラ
シ、６０１は凹部、１０は板ばねである。なお各図中同
一部分は同一符号を付している。Fig. 1 is a front view of a conventional ground brush holding device for a rotating electrical machine as seen from the axial direction, Fig. 2 is a partial side sectional view taken along line ■-■ in Fig. 1, and Fig. 3 is a rotating electrical machine according to this invention. FIG. 4 is a partial side sectional view taken along line IV-IV in FIG. 3, and FIG. A top view of the brush portion, FIG. 6a is a top view of the ground brush, and FIG. 6 is a front view of the ground brush. In the figure, 1 is a bracket, 2 is a rotating shaft, 3' is a bearing, 4.5 is a bearing end cover, 401 is a groove, 6 is a ground brush, 601 is a recess, and 10 is a leaf spring. Note that the same parts in each figure are given the same reference numerals.

Claims

[Claims for Utility Model Registration] 1. A bracket that rotatably supports a rotating shaft of a rotating electrical machine via a bearing, a bearing end cover that is attached to the bracket and fixes the bearing, and a A grounding brush holding device for rotating electric machines with a grounding brush attached directly to the bearing end cover. 2. The earthing brush holding device for a rotating electric machine according to claim 1, wherein the bearing end cover is provided with a groove, a notch, or a through hole into which the earthing brush is inserted. 3. The earth brush holding device for a rotating electric machine according to claim 2, wherein the groove or notch is narrow in the vicinity of the side end surface of the bearing end cover and widened in the depth direction. 4. The ground brush holder for a rotating electric machine according to claim 2 or 3 of the utility model registration claim, wherein the ground brush has a planar cross-sectional shape that is the same as or similar to the planar cross-sectional shape of the groove, notch, or through hole. Device. 5 One end surface of the earth brush is pressed by a leaf spring,
The earthing brush holding device for a rotating electric machine according to any one of claims 1 to 4, wherein the other end surface of the earthing brush is pressed against a rotating shaft.