JPS6431235U

JPS6431235U -

Info

Publication number: JPS6431235U
Application number: JP12552487U
Authority: JP
Priority date: 1987-08-18
Filing date: 1987-08-18
Publication date: 1989-02-27

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す全体縦断面図
である。第２図は公知の内公転型減速機を示す縦
断面図、第３図、第４図はそれぞれ本出願人がさ
きに実願昭６０―１１４３０１号で提案した内公
転型減速機を示す縦断面図、第５図は第３図、第
４図のアンギユラー玉軸受を示す縦断面図である
。１……入力軸、２，３，４，５……玉軸受、６
……遊星ギヤブロツク、６ａ，６ｂ……遊星ギヤ
、７……内歯ギヤ、８……出力軸、９，１０……
軸受、１１，１２……アンギユラー玉軸受、１３
……カラー、１４……ネジ部、１５……予圧ナツ
ト、１６……ロツクピン、２３……皿ばね、２４
……偏心ワツシヤー、２５……同心ワツシヤー、
２６，２７……カラー、２８……皿ばね、２９…
…予圧ナツト。 FIG. 1 is an overall vertical sectional view showing an embodiment of the present invention. Fig. 2 is a longitudinal cross-sectional view showing a known inner revolution type reducer, and Figs. 3 and 4 are longitudinal cross sections showing an inner revolution type reducer which the present applicant previously proposed in Utility Model Application No. 114301/1983. The top view and FIG. 5 are longitudinal sectional views showing the angular ball bearings shown in FIGS. 3 and 4. 1...Input shaft, 2, 3, 4, 5...Ball bearing, 6
... Planetary gear block, 6a, 6b ... Planetary gear, 7 ... Internal gear, 8 ... Output shaft, 9, 10 ...
Bearing, 11, 12... Angular ball bearing, 13
... Collar, 14 ... Threaded part, 15 ... Preload nut, 16 ... Lock pin, 23 ... Belleville spring, 24
...Eccentric washers, 25...Concentric washers,
26, 27...Color, 28...Disc spring, 29...
...Preload nut.

Claims

[Scope of utility model registration request]

A planetary gear block having a pair of front and rear planetary gears is pivotally supported on an eccentric portion of the input shaft whose shaft end is coaxially supported by the output shaft end through an input shaft bearing through a moment load bearing. In an internal revolution type reducer, in which one of the planetary gears is meshed with a fixed internal gear of the casing, and the other planetary gear is meshed with the internal gear of the output shaft, the eccentric portion of the input shaft is Attach a preload member biased by a nut screwed onto the shaft end, and tighten the inner race of the outer moment load type bearing with the preload member through the collar fitted into the eccentric portion. , an inner revolution type speed reducer, characterized in that a disc spring is elastically mounted in a recess formed between the nut and the preload member.