JPS59145257U

JPS59145257U - motor

Info

Publication number: JPS59145257U
Application number: JP3662883U
Authority: JP
Inventors: 信一白崎
Original assignee: 株式会社東芝
Priority date: 1983-03-14
Filing date: 1983-03-14
Publication date: 1984-09-28

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]

図面は本考案の一実施例を示すものであり、第１図は縦
断側面図、第２図は油圧分布特性を回転軸と関連して説
明するための油圧特性図である。図中、１はモータ基体、２は固定軸、５は固定子、１０
は回転子、１４は回転軸、１５はスラスト負荷用油溝、
１６は垂直孔部、１７は第一の水孔部、１８は油供給路
、１９は第二の水平孔部（油分配路）である。The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional side view, and FIG. 2 is a hydraulic characteristic diagram for explaining hydraulic pressure distribution characteristics in relation to the rotation axis. In the figure, 1 is the motor base, 2 is the fixed shaft, 5 is the stator, and 10
is a rotor, 14 is a rotating shaft, 15 is a thrust load oil groove,
16 is a vertical hole, 17 is a first water hole, 18 is an oil supply path, and 19 is a second horizontal hole (oil distribution path).

Claims

[Claims for Utility Model Registration] 1. A rotating shaft of a rotor is fitted into a bottomed cylindrical fixed shaft installed upright on a motor base, and when the rotating shaft rotates, there is a gap between the rotating shaft and the fixed shaft. The rotary shaft is supported by forming a dynamic pressure oil flow in the rotary shaft, and a thrust load oil groove is formed on the outer peripheral surface of the rotary shaft, and a groove is formed inside the rotary shaft from the lower end thereof. An oil supply passage extending in the axial direction and opening to the outer surface of the upper end is formed, and an oil distribution passage opening from the oil supply passage to the outer surface is formed at an upper and lower intermediate portion of the thrust load oil groove portion of the rotating shaft. A motor characterized by: 2. The oil supply path is composed of a vertical hole rising from the center of the lower end of the rotating shaft and a first horizontal hole extending perpendicularly from the upper end of the vertical hole, and the oil distribution path is comprised of a vertical hole of the oil supply path. The motor according to claim 1, which is a registered utility model, characterized in that the motor includes a second horizontal hole extending in the orthogonal direction from the middle.