JPS584819U

JPS584819U - Hydrodynamic thrust bearing device

Info

Publication number: JPS584819U
Application number: JP9670581U
Authority: JP
Inventors: 恭三郎古村; 保夫村上
Original assignee: 日本精工株式会社
Priority date: 1981-07-01
Filing date: 1981-07-01
Publication date: 1983-01-12

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 drawings]

□　第１図は従来使用されている動圧スラスト軸受装置
の要部の断面図、第２図、第３図および第、４図はこの
考案による動圧スレスト軸受装置の実施　　　５例の要
部の断面図である。図中符号１は軸、２は軸学部材、３は支持部材、−４は
球体、５はピボット受部、６１および６２は孔、７は軸
端部材、８は空隙、９は案内みぞ、１◎はラジアルすべ
り軸受である。□ Fig. 1 is a sectional view of the main parts of a conventionally used hydrodynamic thrust bearing device, and Figs. 2, 3, 4, and 4 show the main parts of five examples of the hydrodynamic thrust bearing device according to this invention. FIG. In the figure, 1 is a shaft, 2 is a shaft member, 3 is a support member, -4 is a sphere, 5 is a pivot receiving part, 61 and 62 are holes, 7 is a shaft end member, 8 is a gap, 9 is a guide groove, 1◎ is a radial plain bearing.

Claims

[Scope of utility model registration request]

(1) Having grooves for generating dynamic pressure on either or both of the end surfaces of the shafts facing each other via a lubricant, or the bearing surface of a bearing member that holds a sphere at the center and is fixed to a support member, a thrust bearing device that supports the shaft by rotation;
a partially spherical pivot receiving part having a gap between the outer circumferential surface of the shaft and the inner circumferential surface of the support member that extends to the zero surface of the shaft, and having a diameter slightly larger than the diameter of the sphere centered on the end surface of the shaft; 1. A hydrodynamic thrust bearing device comprising: a hole centered on the pivot receiving portion & and the axis of the shaft and communicating with the outer circumferential surface of the shaft within the gap.

(2) Utility Model Registration Scope of Claim 1: The hydrodynamic thrust bearing device according to claim 1, wherein the shaft has a pivot receiving portion and a hole, and is constituted by coupling a bearing member with a separate shaft end member facing each other.

(3) Utility model registration Claims 1 and 2, the dynamic pressure system is characterized in that a lubricant guiding groove is provided on the outer circumferential surface of the portion of the support member of the shaft located within the gap.