JPS63193637U

JPS63193637U -

Info

Publication number: JPS63193637U
Application number: JP8269187U
Authority: JP
Priority date: 1987-05-29
Filing date: 1987-05-29
Publication date: 1988-12-13
Anticipated expiration: 2002-05-29
Also published as: JPH0753872Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の第１の実施例の分解斜視図
、第２図は第１図に示すものの部分切欠きを有す
る側面図、第３図は第２図の―断面図、第４
図は第１図に示すものの変形例の分解斜視図、第
５図は第２の実施例の部分切欠きを有する側面図
、第６図は第５図の―断面図、第７図は第３
の実施例の部分切欠きを有する側面図である。１はボールねじ軸、２はナツト、３，１０はボ
ール転動溝、４は貫通孔、５はエンドキヤツプ、
６はボール、８はガイドレール、９は凹溝、１２
はカバー、１６はサポートユニツト、ＯＴは油溜
り。 Figure 1 is an exploded perspective view of the first embodiment of this invention, Figure 2 is a side view with a partial cutout of the same as shown in Figure 1, Figure 3 is a sectional view of Figure 2, and Figure 4 is a cross-sectional view of Figure 2.
The figure is an exploded perspective view of a modification of the one shown in FIG. 1, FIG. 5 is a side view with a partial cutout of the second embodiment, FIG. 6 is a sectional view of FIG. 5, and FIG. 3
FIG. 3 is a side view with a partial cutout of the embodiment. 1 is a ball screw shaft, 2 is a nut, 3 and 10 are ball rolling grooves, 4 is a through hole, 5 is an end cap,
6 is a ball, 8 is a guide rail, 9 is a groove, 12
is the cover, 16 is the support unit, and OT is the oil sump.

Claims

[Scope of utility model registration request]

Axial ball rolling grooves are provided on both sides of a square nut screwed onto the ball screw shaft, and axial through holes that serve as ball passages are made to correspond to the ball rolling grooves within the inner wall thickness. By forming an end cap having a curved ball groove that communicates the ball rolling groove with the through hole on both the front and rear end surfaces of the nut, an endless ball circulation path is provided in the nut, and an endless ball circulation path is provided in the nut. The guide rail includes a large number of balls arranged in a circulation path so as to be freely rollable, and a guide rail having a groove into which the nut is loosely fitted so as to be movable in the axial direction through the rolling of the balls. has an axial ball rolling groove opposite to the ball rolling groove of the nut on both inner surfaces of the groove, rotatably supports the ball screw shaft at both ends, and has oil in the groove. 1. A linear guide device integrated with a ball screw, comprising a support unit that forms a reservoir, and the nut is configured to move within the oil reservoir according to rotation of the ball screw shaft.