JPH0422636U

JPH0422636U -

Info

Publication number: JPH0422636U
Application number: JP6362490U
Authority: JP
Priority date: 1990-06-18
Filing date: 1990-06-18
Publication date: 1992-02-25

Description

[Brief explanation of drawings]

第１図は本考案の実施例を示す増速スピンドル
装置の縦断面図、第２図は第１図のＡ−Ａ′線の
断面図、第３図乃至第５図本考案の絞り穴と潤滑
剤封入穴の他の実施例を示す断面図、第６図乃至
第９図は本考案の他の実施例を示す案内ブロツク
の外表面の部分図、第１０図は従来の増速スピン
ドル装置の半部断面図である。符号の説明、１０，１０ａ……入力軸、１２，
１２ａ……ニードルローラ、１３，１３ａ，１３
ｂ……ケーシング、２０，２０ａ……出力軸、３
０，３０ａ……太陽ローラ、４０，４０ａ……遊
星ローラ、５０，５０ａ……外輪、６０……案内
ブロツク、７０……潤滑剤封入部、７１……絞り
穴。 Fig. 1 is a longitudinal sectional view of a speed increasing spindle device showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line A-A' in Fig. 1, and Figs. 6 to 9 are partial views of the outer surface of a guide block showing other embodiments of the present invention, and FIG. 10 is a conventional speed increasing spindle device. FIG. Explanation of symbols, 10, 10a...Input shaft, 12,
12a... Needle roller, 13, 13a, 13
b...Casing, 20, 20a...Output shaft, 3
0, 30a... Sun roller, 40, 40a... Planetary roller, 50, 50a... Outer ring, 60... Guide block, 70... Lubricant sealing part, 71... Throttle hole.

Claims

[Claims for Utility Model Registration] (1) A casing having an inner circumferential surface on which a roller rolls, an output shaft inserted through the casing and having an outer circumferential surface facing the inner circumferential surface of the casing; a plurality of planetary rollers arranged in the circumferential direction and fitted between the circumferential outer surface of the output shaft and the circumferential inner surface of the casing; In a speed increasing spindle device including an input shaft rotatably supported, the input shaft has a lubricant enclosing part for enclosing a lubricant therein, and the lubricant enclosing part is arranged on a surface on which the planetary roller rolls. A speed-increasing spindle device, characterized in that the speed-increasing spindle device is in communication with an aperture hole that opens toward the. (2) The speed increasing spindle device according to claim 1, wherein at least one of the lubricant sealing part and the throttle hole is filled with a porous plug member. (3) The speed increasing spindle device according to claim 1 or 2, wherein a plurality of concave and convex portions are formed on the opposing surface of the input shaft that is opposite to the surface on which the planetary rollers of the casing roll. . (4) The opposing surface of the input shaft that is opposite to the surface on which the planetary rollers of the casing roll has an axially inclined surface that faces the throttle hole and forms a height. 3. Speed-increasing spindle device according to item 2.