JPS58200834A - Reduction gear utilizing difference in number of teeth - Google Patents

Abstract

PURPOSE:To provide a high reduction gear ratio through a small structure, by reducing the rotary speed of an output shaft according to the difference in the number of teeth between a pair of an inner and an outer gear making a nutational turn along an output gear white gearing with it. and a stationary gear, secured to an inner surface of a casing. CONSTITUTION:An outer gear 5 located on a rolling plate 3 which is linked to the end of an input shaft 1 through a Z crank pin 2, is brought into engagement with a stationary gear 7 secured to one inner side of a casing 4 so that the outer gear makes a nutational turn along said stationary gear 7. An output gear 8, which is coupled in one body to an output shaft 10, is rotatably supported in the casing 4, concentrically with the stationary gear 7, and an inner gear 6, being positioned concentrically with the outer gear 5 located to said rolling plate 3, is made to engage with the gear 8 so as to make a nutational turn. In case the number of teeth of gears 6, 8 and 5, 7 are A-D and C is equal to D, and in the case of A>B, the output gear 8 turns by (A-B)/B in the reverse direction to the rotating direction of the input 1, and in the case of A<B, its turning speed is decelerated by (B-A)/B in the same direction.

Description

【発明の詳細な説明】 この発明は歯数差による歯車減速装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gear reduction device using a difference in the number of teeth.

従来は単純歯車列、ウオーム歯車、遊星両市、サイクロ
減速機、等各種の減速機が使用されているが大減速比を
得るためには段数を増し減速させているので大スペース
を必要とし小型化は難しがった。Conventionally, various speed reducers have been used, such as simple gear trains, worm gears, planetary speed reducers, and cyclo speed reducers, but in order to obtain a large reduction ratio, the number of stages is increased and the speed is reduced, which requires a large space and is miniaturized. was difficult.

この発明は適め１な歯形の固定歯ｊｌｊと出力歯車１−
を噛合いなからＺクランク、またはカム、油圧。This invention has a fixed tooth jlj with a suitable tooth profile and an output gear 1-
From Z-crank, or cam, hydraulics.

等の方法にて味噌摺り転動する内、外、転動両市の噛合
い歯Ｉ４Ｌ対の歯数差により出力を得ることを特徴とす
る歯車減速装置で小スペース、簡ｉｔな構造で大減速比
をも可能な減速装置を提供せんとするものである。This gear reduction device is characterized by obtaining output from the difference in the number of teeth of the I4L pair of meshing teeth on both the inner, outer, and rolling sides, which are rolled using a method such as Miso-suri. It is an object of the present invention to provide a speed reduction device that can also achieve a high speed ratio.

本発明を図面に基いて説明すると、第１図は原理構造図
でケーシング（４）に固着した適当な歯形の固定歯車（
７）と軸受（９）にて支持された出力軸（１０）に固着
した出力歯車（８）上を入力軸（１）にて駆動されるＺ
クランクピン（２）により味噌摺り運動をする転勤板１
３）に固着した転勤外歯車（５）と転勤内歯車（６）は
転勤板（３）の運動により固定歯車（７）と出力歯車（
８）４二を噛合いながら味噌摺り転勤するように構成す
る。The present invention will be explained based on the drawings. Fig. 1 shows the principle structure of a fixed gear (4) with an appropriate tooth profile fixed to the casing (4).
7) and a Z gear driven by the input shaft (1) on the output gear (8) fixed to the output shaft (10) supported by the bearing (9).
Transfer plate 1 that performs miso-suri motion by crank pin (2)
The transfer external gear (5) and the transfer internal gear (6) fixed to the fixed gear (7) and the output gear (6) are moved by the movement of the transfer plate (3).
8) Configure so that miso-zuri is transferred while meshing 42.

第２図と第３図は、歯数差減速比説明図で歯車の歯数を
それぞれ転勤外歯車（５）をＣ１転動内歯車１６（を１
〜、固定歯車（７）をＤ、出力歯車（８）をＢ、とすれ
は、第２図は互いに噛合う歯車対の始点をＣとＤはＯＩ
、ＡとＢは０２、としＺクランクが矢印の方向に１回転
すると、Ｃ＝Ｄ、のとき０＋点は変らないが、Ａ−Ｂな
ら出力歯車（８）は歯数差に相当する（Ａ−Ｂ）／Ｂ、
たけ０点より矢印と逆方向に回転し、Ａ−Ｂなれば、（
Ｂ−Ａ）／Ｂだけ矢印と同方向に回転する。Figures 2 and 3 are explanatory diagrams of the reduction ratio due to the difference in the number of teeth.
~, the fixed gear (7) is D, the output gear (8) is B, and in Fig. 2, C and D are the starting points of the gear pair that mesh with each other, and OI.
, A and B are 02, and when the Z crank rotates once in the direction of the arrow, the 0+ point does not change when C=D, but if A-B, the output gear (8) corresponds to the difference in the number of teeth (A -B)/B,
Rotate in the opposite direction of the arrow from the 0 point, and if it becomes A-B, (
Rotate by B-A)/B in the same direction as the arrow.

第：３図は、Ａ　　Ｂで、Ｃぐ、Ｄ、のときＺクラ／り
か矢印の方向に１回転すると出力歯車（８）は、０１点
より、（Ｄ−Ｃ）／Ｄ＋　（Ａ−Ｂ）、／Ｂ、たけ矢印
と逆方向に回転し、Ａ　　Ｂで、ＣＤ、かつＢ／Ａ・、
Ｄ　／　Ｃ１のときはＺクランクが矢印のノＪ。Figure 3 shows that when A B is C, D, and Z, when it rotates once in the direction of the arrow, the output gear (8) will move from point 01 to (D-C)/D+ (A-B ), /B, rotate in the opposite direction to the arrow, A B, CD, and B/A・,
For D/C1, the Z crank is the arrow NoJ.

向に、１　＋（Ｃ−Ｄ）／Ｄ回転すると出力南東（８）
は、α点より（Ｃ−Ｄ）／Ｄ−（Ａ−Ｂ）／Ｂたけ矢印
の方向に回転する。When rotated by 1 + (C-D)/D in the direction, the output is southeast (8)
rotates from point α by (C-D)/D-(A-B)/B in the direction of the arrow.

其の他種種歯数の組合せにより各種の減速比が得られる
。In addition, various reduction ratios can be obtained by combining the number of teeth.

第４図は、出力歯車（８）または固定歯車（７）とそれ
に噛合う転勤外歯車（５）と転勤内歯車（６）のピッチ
円半径の関係を示す。固定または出力歯車のピッチ（平
径を１３＋とじ。れ１゜噛合う転動歯ｄｉ　（７）　ｅ
　、１円半径をＡ１とする。この交点Ｙ）か入出力軸芯
Ｏ′、Ｏ′、とＺクランクピンの軸芯Ｑ′、Ｑ″、との
交点Ｑより■ の距離Ｉ、のＲ点にて両歯車のピッチ円半径が等しくな
り、１３点がＰ＋点より２２点側にくれはＢ１はＡ２よ
り小となり、Ｐ点がＰ＋点よりＰ３点側になれは、Ｂ１
は、・■より大となる。Ｌ′またはＩ７″及びθを選定
することにより、必要な歯数差を得ることが出来る。FIG. 4 shows the relationship between the pitch circle radii of the output gear (8) or the fixed gear (7), and the transfer external gear (5) and transfer internal gear (6) that mesh with it. Pitch of fixed or output gear (flat diameter 13+, rolling teeth meshing 1° di (7) e
, the radius of one circle is A1. The pitch circle radius of both gears is If they are equal, and the 13th point is closer to the 22nd point than the P+ point, B1 will be smaller than A2, and if the P point is closer to the P3 point than the P+ point, B1
is larger than ・■. By selecting L' or I7'' and θ, the necessary difference in the number of teeth can be obtained.

第５図は、実施例の断面図で、例として人、出力軸の回
転方向が同一のとき（刊逆のとき（−）の符号にて示し
、それぞれの歯数が、Ａが３１、Ｂが３Ｏ，Ｃが３０、
Ｄが２９のとき減速数は、（＋）　１．　／９００、と
なり、Ａが３１、Ｂが３０．Ｃが２９Ｄが；３０なら減
速数は、（−＋　１　／　ｌ　５、となる。また、Ａが
３１、Ｂが３０、Ｃが３０、Ｄが３０のとき減速数はＨ
１／　３０となる。FIG. 5 is a cross-sectional view of the embodiment. As an example, when the direction of rotation of the output shaft is the same (indicated by the sign (-) when the output shaft is reversed), the number of teeth is 31 for A and 31 for B. is 3O, C is 30,
When D is 29, the deceleration number is (+) 1. /900, A is 31, B is 30. If C is 29D is ;30, then the deceleration number is (-+ 1/l 5).Also, when A is 31, B is 30, C is 30, and D is 30, the deceleration number is H.
It becomes 1/30.

叙１−のように従来の減速機に比べ小型、簡ｊ１ｔな構
造で大減速比が可能になった。As shown in Section 1-, a large reduction ratio is possible with a smaller and simpler structure than conventional reduction gears.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は原理構造図、第２図、第３図は歯数差減速比の
説明図、第４図は歯車ピッチ円半径選定説明図、第５図
は実施例の断面図である。 １・・人力軸、２・・・Ｚクランクピン、３・・・味噌
摺り転動板、４・・・ケーシング、５・・転勤外歯車０
・転動内山市、７・・・固定歯車、８・・・出力歯車９
・・軸受、１０・・・出力軸 Ａ・・転勤内歯車（６）の歯数、Ｂ　出力歯車（８）σ
〕爾数、Ｃ・・・転動外歯車（５）の歯数、■〕・固定
歯車（７）の歯数 第　１１デ 第２図FIG. 1 is a diagram of the principle structure, FIGS. 2 and 3 are illustrations of the tooth number difference reduction ratio, FIG. 4 is an illustration of gear pitch circle radius selection, and FIG. 5 is a sectional view of the embodiment. 1...Human power shaft, 2...Z crank pin, 3...Miso rubbed rolling plate, 4...Casing, 5...Relocation external gear 0
・Rolling Uchiyama City, 7... Fixed gear, 8... Output gear 9
... Bearing, 10 ... Output shaft A ... Number of teeth of transfer internal gear (6), B Output gear (8) σ
[Number of teeth, C...Number of teeth of rolling external gear (5), ■]Number of teeth of fixed gear (7) Fig. 11

Claims (1)

【特許請求の範囲】[Claims] １　固定歯車と出力歯車上を噛合いなから味噌摺り転動
する内、外、歯車の噛合い歯車対の歯数差により出力を
得る歯数差による歯（１ｉ、減速装置。1. Output is obtained by the difference in the number of teeth between the inner and outer gears that mesh with each other on the fixed gear and the output gear (1i, reduction gear).