JPH02122196U

JPH02122196U -

Info

Publication number: JPH02122196U
Application number: JP2981789U
Authority: JP
Priority date: 1989-03-17
Filing date: 1989-03-17
Publication date: 1990-10-05
Anticipated expiration: 2004-03-17
Also published as: JP2542995Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示すキヤンドモー
タポンプに用いた軸受支持装置の縦断面図、第２
図は本考案の他の実施例を示す軸受支持装置を備
えたマグネツト駆動ポンプの縦断面図、第３図ａ
及びｂは従来例を示す軸受支持装置の縦断面図及
び要部端面図、第４図は従来のキヤンドモータポ
ンプの縦断面図である。３……モータ固定子、４……固定子キヤン、５
……モータ回転子、７……冷却液入口開口、１２
……固定摺動部材、１３……回転摺動部材、１４
……スラスト軸受、２１……軸受ケース、３３…
…従動磁石輪、３４……軸受ケース、３５……回
転摺動部材、３６……固定主軸、３７……軸スリ
ーブ、３８……スラスト軸受、３９……駆動磁石
輪、４０……キヤン、４１……ヨーク、４３……
モータ軸。 Fig. 1 is a longitudinal sectional view of a bearing support device used in a canned motor pump showing one embodiment of the present invention;
The figure is a vertical cross-sectional view of a magnet-driven pump equipped with a bearing support device showing another embodiment of the present invention, Fig. 3a.
and b are a vertical cross-sectional view and an end view of essential parts of a conventional bearing support device, and FIG. 4 is a vertical cross-sectional view of a conventional canned motor pump. 3...Motor stator, 4...Stator can, 5
... Motor rotor, 7 ... Coolant inlet opening, 12
... Fixed sliding member, 13 ... Rotating sliding member, 14
...Thrust bearing, 21...Bearing case, 33...
... Driven magnet ring, 34 ... Bearing case, 35 ... Rotating sliding member, 36 ... Fixed main shaft, 37 ... Shaft sleeve, 38 ... Thrust bearing, 39 ... Drive magnet ring, 40 ... Can, 41 ...York, 43...
motor shaft.

Claims

[Scope of Claim for Utility Model Registration] 1. A leak-free pump in which the pump part and drive motor part are separated by a partition wall, the pump part has a completely sealed structure, and the impeller etc. are rotatably supported by submerged bearings, all bearings and thrust The bearings are connected so that the cooling liquid flows continuously through the bearing sliding gap, and a bearing case for supporting the outer sliding member of the sliding bearing is provided.
A bearing support device for a leak-free pump, characterized in that the device is extended to cover the outer circumferential portion of a thrust bearing connected to an inner sliding member. 2. A bearing for supporting a fixed sliding member of a sliding bearing in a canned motor pump in which the pump part and the drive motor part are separated by a partition wall, the pump part has a completely sealed structure, and the impeller etc. are rotatably supported by a submerged bearing. A bearing support device for a leak-free pump, characterized in that the case is extended to a position that covers the outer circumference of a thrust bearing connected to a rotating sliding member. 3 In a magnetic drive pump in which the pump part and the drive motor part are separated by a partition wall, the pump part has a completely sealed structure, and the impeller etc. are rotatably supported by a submerged bearing, a case that supports the rotating sliding member of the sliding bearing is provided. A bearing support device for a leak-free pump, characterized in that the bearing support device is extended to a position that covers the outer circumference of a thrust bearing fixed to a fixed shaft. 4. Make sure that the gap between the bearing case and the outer circumference of the thrust bearing is
4. The bearing support device for a leak-free pump according to claim 1, wherein the bearing support device for a leak-free pump is formed to be smaller than the gap between the two members facing each other across the can of the leak-free pump.