JPS6164545U

JPS6164545U -

Info

Publication number: JPS6164545U
Application number: JP14861884U
Authority: JP
Priority date: 1984-10-02
Filing date: 1984-10-02
Publication date: 1986-05-01

Description

[Brief explanation of the drawing]

第１図及び第２図は本考案による遊星歯車装置
を示すためのもので、第１図は全体構成を示す断
面図、第２図は各部の動作状態を示すための動作
構成図、第３図は従来装置を示す断面図である。１は入力側ケーシング、１ｄは第１スラストベ
アリング、２はカツプリング体（入力軸）、２ａ
は太陽歯車、２ｂはスプライン部、２ｃは第１保
持体、２ｄは段部、２ｅは第１スプリング、２ｆ
は歯部、３は内歯車体、３ａは出力側ケーシング
、３ｂはベアリング部、３ｃは歯部、４は遊星ホ
ルダ、４ａは遊星軸、４ｂは遊星歯車、４ｃはベ
アリング、４ｄは歯部、４ｅはスラストベアリン
グ、４ｆは一端、４ｇは第２スプリング、４ｈは
第３スラストベアリング、４ｉは段部、４ｊは第
３スプリング、５は出力軸、５ａはスプライン部
、５ｂは第４スラストベアリング、５ｃは第２保
持体、５ｄは第４スプリングである。 1 and 2 are for showing the planetary gear device according to the present invention. FIG. 1 is a sectional view showing the overall structure, FIG. 2 is an operational configuration diagram showing the operating state of each part, and FIG. The figure is a sectional view showing a conventional device. 1 is the input side casing, 1d is the first thrust bearing, 2 is the coupling body (input shaft), 2a
is a sun gear, 2b is a spline part, 2c is a first holder, 2d is a step part, 2e is a first spring, 2f
is a tooth portion, 3 is an internal gear body, 3a is an output side casing, 3b is a bearing portion, 3c is a tooth portion, 4 is a planet holder, 4a is a planet shaft, 4b is a planet gear, 4c is a bearing, 4d is a tooth portion, 4e is a thrust bearing, 4f is one end, 4g is a second spring, 4h is a third thrust bearing, 4i is a stepped portion, 4j is a third spring, 5 is an output shaft, 5a is a spline portion, 5b is a fourth thrust bearing, 5c is a second holding body, and 5d is a fourth spring.

Claims

[Scope of utility model registration request]

A coupling body 2 as an input shaft guided by the input side casing 1, and a first thrust bearing 1d provided coaxially on the outer periphery of the coupling body 2 so as to be rotatable together. a first holding body 2c disposed therebetween; and a sun gear 2a coaxially disposed on the outer periphery of the coupling body 2 and rotatable together.
and a tooth portion 2f having a conical tapered surface formed on the sun gear 2a, and a first spring 2e interposed between the first holder 2c and the stepped portion 2d of the sun gear 2a. , an internal gear body 3 connected to the input side casing 1, a toothed portion 3c formed on the inner peripheral wall of the internal gear body 3 and having a conical tapered surface, and an internal gear body 3 connected to the input side casing 1, a planet holder 4 rotatably held by the gear body 3 and coaxially disposed on the outer periphery of the coupling body 2;
, a planetary gear 4b that is rotatably provided on the planetary holder 4, meshes with the tooth portion 2f of the sun gear 2a, and is movable in the axial direction; and a planetary gear 4b that is movable in the axial direction.
a tooth portion 4d having a conical tapered surface formed therein, second and third thrust bearings 4e, 4h formed at both ends of the planetary gear 4b, the planetary holder 4 and each of the thrust bearings 4e, 4h. The second and third springs 4g, 4 interposed between
j and the planet holder 4 are provided coaxially inside the planet holder 4, and the planet holder 4 is connected to the slap line part 5.
an output shaft 5 arranged to cooperate with each other via a, a fourth thrust bearing 5b provided at one end of the sun gear 2a, and between the fourth thrust bearing 5b and the output shaft 5. Interposed 4th
a spring 5d, the first spring 2
e has a larger spring force than the fourth spring 5d, and the third spring 4j has a larger spring force than the second spring 4g,
A planetary gear device characterized in that the sun gear 2a and the planetary gear 4b are pressed in opposing directions through the tapered surfaces and mesh with each other to eliminate backlash.