JPS5963656U

JPS5963656U - Liquid sealed submersible motor

Info

Publication number: JPS5963656U
Application number: JP15939882U
Authority: JP
Inventors: 西田　光博; 稲尾　博; 徳光　清典
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1982-10-19
Filing date: 1982-10-19
Publication date: 1984-04-26
Also published as: JPH0231891Y2

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 the drawing]

第１図は従来のキャンド式封液形電動機の一部断面図、
第２図はこの考案の一実施例の要部を示す断面図である
。図中、１は枠体、４は上部ブラケット、４には注入及
び排気孔、５は固定子鉄心、６は固定子巻線、８は下部
ブラケット、９は回転子鉄心、９ａは回転子軸の嵌合孔
、９ｂは二次導体の嵌合孔、９Ｃは一対の軸線方向の貫
通孔、１０は回転子軸、１１，１２は両軸受、２８は封
入液、３０はスラスト軸受機構である。なお、図中同一
符号は同一または相当部分を示す。Figure 1 is a partial cross-sectional view of a conventional canned liquid sealed electric motor.
FIG. 2 is a sectional view showing a main part of an embodiment of this invention. In the figure, 1 is a frame body, 4 is an upper bracket, 4 is an injection and exhaust hole, 5 is a stator core, 6 is a stator winding, 8 is a lower bracket, 9 is a rotor core, and 9a is a rotor shaft 9b is a fitting hole for the secondary conductor, 9C is a pair of axial through holes, 10 is a rotor shaft, 11 and 12 are both bearings, 28 is a sealed liquid, and 30 is a thrust bearing mechanism. . Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

(1) A frame that surrounds and supports the stator, which is connected to both ends of this frame and rotatably supports the rotor shaft fitted to the rotor core through cylindrical bearings, and also supports both ends of the frame. A device comprising upper and lower brackets respectively protruding from the outer end surface, a sealed liquid injection and exhaust hole formed in the upper bracket, and a thrust bearing mechanism formed in the protruding part of the rotor shaft from the outer end surface of the lower bracket. In the rotor core, an axial through hole other than the rotor shaft fitting hole and the secondary conductor fitting hole is formed in the rotor core so as to maintain the balance of the rotor core. Submersible electric motor. (2) The through holes in the axial direction shall be a pair of through holes provided at symmetrical positions on the peripheral edge of the fitting hole of the rotor shaft and at an intermediate position between the fitting holes of adjacent secondary conductors. A liquid-sealed submersible electric motor according to claim 1 of the utility model registration claim, characterized in that: - (3) The axial through hole is formed at a symmetrical position between the fitting hole of the rotor shaft and the fitting hole of the secondary conductor, and the middle position of the fitting hole of the adjacent secondary conductor. The liquid sealed submersible electric motor according to claim 1, which is characterized by having a pair of through holes.