JPS63160435U

JPS63160435U -

Info

Publication number: JPS63160435U
Application number: JP5397287U
Authority: JP
Priority date: 1987-04-09
Filing date: 1987-04-09
Publication date: 1988-10-20

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の側断面図、第２図
は本考案の他の実施例の一部側断面図、第３図は
従来例の説明図である。１……フレーム、２……ブラケツト（軸受箱）
、３，４……軸受、５……主軸、６，６ａ，６ｂ
……軸受外輪側間座、７……冷却水路で７ａは冷
却水入口・７ｂは冷却水導管・７ｃは冷却水出口
、８，９……Ｏリング、１０……軸受内輪側間座
、１１……冷却水、１２……固定子、１３……回
転子、１４……冷却水路、１５，１６……Ｏリン
グ、１７……給電線。 FIG. 1 is a side sectional view of one embodiment of the present invention, FIG. 2 is a partial side sectional view of another embodiment of the present invention, and FIG. 3 is an explanatory diagram of a conventional example. 1... Frame, 2... Bracket (bearing box)
, 3, 4... bearing, 5... main shaft, 6, 6a, 6b
...Bearing outer ring side spacer, 7...Cooling water channel, 7a is cooling water inlet, 7b is cooling water conduit, 7c is cooling water outlet, 8, 9...O ring, 10... Bearing inner ring side spacer, 11 ... Cooling water, 12 ... Stator, 13 ... Rotor, 14 ... Cooling water channel, 15, 16 ... O ring, 17 ... Power supply line.

Claims

[Claims for Utility Model Registration] 1. In a cooling device for a bearing that rotatably supports the end of a main shaft of a rotating machine, two bearings are supported by a bracket at one end of the main shaft with a gap between them; A cylindrical spacer on the inner ring side of the bearing is fitted and inserted between the inner rings, and a protrusion made on the inner peripheral surface of the bracket that contacts the outer ring of one of the two bearings is loosely fitted between the outer ring of the other bearing, A spacer on the outer ring side of the bearing is provided with a cooling channel that forms a cylindrical cavity between the inner circumferential surfaces of the bracket, and two spacers on the outer ring side of the bearing are arranged on both sides of the contact surface of the spacer on the outer ring side of the bearing with the inner circumferential surface of the bracket. A cooling device for a bearing, comprising: an O-ring; and means for supplying cooling water into a cooling waterway from above and discharging cooling water from below. 2. The cooling device for a bearing according to claim 1, wherein a cylindrical cavity is formed in the spacer on the outer ring side of the bearing. 3. The cooling device for a bearing according to claim 1, wherein a cylindrical cavity is formed in the inner circumferential surface of the bracket.