JPS6122175U

JPS6122175U - Oil-lubricated bearing mechanism for rotating electric machines

Info

Publication number: JPS6122175U
Application number: JP10612884U
Authority: JP
Inventors: 真一田村
Original assignee: 株式会社東芝
Priority date: 1984-07-13
Filing date: 1984-07-13
Publication date: 1986-02-08

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案による回転電機の油潤滑軸受機構の一実
施例を示す要部断面図、第２図ａ，ｂは同実施例のス
トツパ収納溝部を拡大して示す正面図および断面図、第
３図は同実施例の回転軸が高速回転状態のときの動作を
示すストップ収納溝部の断面図、第４図は同実施例の球
に働く遠心力を説明するための図、第５図は同実施例の
ばねの縮み長さと回転角速度及び汲上げ穴数と回転角速
度との関係を示す図、第６図は同実施例の球の回転角速
度と給油量の関係を示す図、第７図は従来の回転電機の
油潤滑軸受機構の一例を示す要部断面図である。１・・・軸受ブラケット、２・・・軸受ホルダ、３・・
・組合せ軸受、４・・・回転軸、５・・・締付ナット、
６・・・小軸受、７・・・カラー、９・・・油道穴、１
０・・・潤滑油、１１・・・上部油槽、１２・・・外側
油切、１３・・・油溜め筒、１４・・・ストツパ収納溝
、１５・・・球収納溝、１６・・・ストツパ、１７・・
・ばね、１８・・・円筒体、１９・・・球。FIG. 1 is a cross-sectional view of a main part showing an embodiment of an oil-lubricated bearing mechanism for a rotating electric machine according to the present invention, FIGS. Fig. 3 is a sectional view of the stop storage groove showing the operation when the rotating shaft of the same embodiment is in a high speed rotation state, Fig. 4 is a diagram for explaining the centrifugal force acting on the ball of the same embodiment, and Fig. 5 6 is a diagram showing the relationship between the compressed length of the spring and the rotational angular velocity, the number of pumping holes, and the rotational angular velocity in the same example, FIG. 6 is a diagram showing the relationship between the rotational angular velocity of the ball and the amount of oil supply in the same example, and FIG. The figure is a sectional view of a main part showing an example of a conventional oil-lubricated bearing mechanism of a rotating electric machine. 1...Bearing bracket, 2...Bearing holder, 3...
・Combination bearing, 4... Rotating shaft, 5... Tightening nut,
6... Small bearing, 7... Collar, 9... Oil pipe hole, 1
0... Lubricating oil, 11... Upper oil tank, 12... Outer oil cutter, 13... Oil reservoir cylinder, 14... Stopper storage groove, 15... Ball storage groove, 16... Stoppa, 17...
・Spring, 18... Cylindrical body, 19... Ball.

Claims

[Scope of utility model registration request]

In an apparatus in which a rotating shaft of a rotating electric machine arranged vertically is rotatably supported by a bearing provided on a bearing support member fixed to a fixed part, and the bearing is to be supplied with lubricating oil, an oil tank disposed below and storing the lubricating oil, an upper end of which is below the bearing fixed to the rotating shaft, a lower end of which is immersed in the lubricating oil in the oil tank, and a wall surface of the lower end of the tank; A collar having a plurality of holes penetrating through the collar, further having a plurality of axial stopper storage grooves on the inner wall surface including the holes, and a ball storage groove along each of the stopper storage grooves; an oil pipe for supplying lubricating oil in the oil tank to the bearing by a pump action generated by the rotation of the collar; A stopper is provided in the surrounding member and is slidably provided in the stopper storage groove to close the hole, and a ball is provided so as to be movable along the ball storage groove, and when the rotating shaft is rotated. An oil-lubricated bearing mechanism for a rotating electric machine, wherein the stopper is slid by centrifugal force generated in the ball to open and close the hole in the collar.