JPH0480950U

JPH0480950U -

Info

Publication number: JPH0480950U
Application number: JP12361990U
Authority: JP
Priority date: 1990-11-27
Filing date: 1990-11-27
Publication date: 1992-07-14
Anticipated expiration: 2005-11-27
Also published as: JP2523068Y2

Description

[Brief explanation of drawings]

第１図は、本考案に係る内接噛合遊星歯車構造
が適用された減速機の概略縦断面図、第２図及び
第３図は、それぞれ本考案の他の実施例を示す概
略縦断面図、第４図は、従来の内接噛合遊星歯車
構造を利用した減速機の例を示す縦断面図、第５
図は、第４図−線に沿う断面図、第６図及び
第７図は、従来の内接噛合遊星歯車構造の有する
問題点を説明するための部分概略断面図である。２１……入力軸（第１軸）、２２……出力軸（
第２軸）、２３……偏心体（軸）、２４……フレ
キシブル結合手段、２５ａ，２５ｂ……外歯歯車
、２６ａ，２６ｂ……軸受、２８……内歯歯車、
２９……外ピン、３０……内ピン穴、３１……内
ピン、３２……内ローラ、３３ａ，３３ｂ，４２
……内ピン保持リング、３４ａ，３４ｂ，４０…
…デイスタンスピース、３５……フレキシブル結
合手段、３６……シム。 FIG. 1 is a schematic vertical sectional view of a speed reducer to which the internal meshing planetary gear structure according to the present invention is applied, and FIGS. 2 and 3 are schematic vertical sectional views showing other embodiments of the present invention, respectively. , FIG. 4 is a vertical sectional view showing an example of a reduction gear using a conventional internally meshing planetary gear structure, and FIG.
The figures are a cross-sectional view taken along the line of FIG. 4, and FIGS. 6 and 7 are partial schematic cross-sectional views for explaining the problems of the conventional internally meshing planetary gear structure. 21...Input shaft (first axis), 22...Output shaft (
2nd shaft), 23... Eccentric body (shaft), 24... Flexible coupling means, 25a, 25b... External gear, 26a, 26b... Bearing, 28... Internal gear,
29...Outer pin, 30...Inner pin hole, 31...Inner pin, 32...Inner roller, 33a, 33b, 42
...Inner pin holding ring, 34a, 34b, 40...
... distance piece, 35 ... flexible coupling means, 36 ... shim.

Claims

[Claims for Utility Model Registration] A first shaft, a plurality of external gears eccentrically attached to the first shaft via an eccentric body provided on the first shaft, and An internally meshing planetary gear structure comprising an internally meshing internal gear and a second shaft connected to the external gear via means for transmitting only an autorotation component of the external gear, A shaft and an eccentric body are coupled to each other so as to be displaceable in the radial direction within a range that does not impair the internal mesh rotation function of the external gear, and the eccentric body is axially displaceable on the first axis of the eccentric body with respect to the eccentric body disposing a positioning member capable of restraining the movement of the eccentric body and receiving a moment when the eccentric body tends to tilt with respect to the axis of the first shaft;
An internal meshing planetary gear structure characterized in that a gap between the positioning member and the eccentric body is managed to be a predetermined gap.