JPS61184253A - Fluctuation torque absorption mechanism in planetary reducer - Google Patents
Fluctuation torque absorption mechanism in planetary reducerInfo
- Publication number
- JPS61184253A JPS61184253A JP2190685A JP2190685A JPS61184253A JP S61184253 A JPS61184253 A JP S61184253A JP 2190685 A JP2190685 A JP 2190685A JP 2190685 A JP2190685 A JP 2190685A JP S61184253 A JPS61184253 A JP S61184253A
- Authority
- JP
- Japan
- Prior art keywords
- internal gear
- annular body
- planetary reducer
- external casing
- absorption mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/2809—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet gears
- F16H1/2818—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet gears by allowing limited movement of the ring gear relative to the casing or shaft
Landscapes
- Retarders (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（、産業上の利用分野）
この発明は舶用中速ディーゼル機関等に用いらｎる遊星
減速機に内蔵さ扛る変動トルク吸収機構に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a fluctuating torque absorption mechanism built into a planetary reducer used in a marine medium-speed diesel engine or the like.
（従来の技術）
従来舶用主機（エンジン）として中速デイゼル機関を使
用する場合、主機の変動トルクを吸収し、減速機歯車を
保睦する目的で、主機と減速機の間に弾性継手を装備す
るのが一般的である。一方、機関室をコンパクトにしよ
うとする目的から、トータルエンジン長さの長い中速デ
ィーゼル機関ではコンパクトな遊星減速機が用いら扛、
更ｉこ該遊星減速機内に別種の変動トルク吸収機構を内
蔵させ、上記弾性継手を用いず主機と該減速機とを直結
させる提案がなさｎている。即ち、第２図に示すように
、バランスピン（５００）ト呼ばｎる棒状体の両端を内
歯車（１）幅方向両端部に固定すると共に、その中央部
を内歯車（１）外周に周設さｎた外部ケーシング（２）
に固定せしめることにより、該バランスピン（５００）
で内歯車（１）を外部ケーシング（２）に弾性支持せし
め、前記主機から伝達さ扛る変動トルクを吸収せしめる
構造をとるものである。(Prior art) Conventionally, when a medium-speed diesel engine is used as a marine main engine (engine), an elastic joint is installed between the main engine and the reducer in order to absorb the fluctuating torque of the main engine and protect the reducer gear. It is common to do so. On the other hand, in order to make the engine room more compact, medium-speed diesel engines with long total engine lengths do not use compact planetary reducers.
Furthermore, there has been a proposal to incorporate a different type of fluctuating torque absorbing mechanism into the planetary reducer and to directly connect the main engine and the reducer without using the above-mentioned elastic joint. That is, as shown in FIG. 2, both ends of a rod-shaped body called a balance pin (500) are fixed to both ends in the width direction of the internal gear (1), and the center part is attached to the outer periphery of the internal gear (1). installed external casing (2)
By fixing it to the balance pin (500)
The internal gear (1) is elastically supported by the external casing (2) and has a structure that absorbs the fluctuating torque transmitted from the main engine.
（発明が解決しようとする問題点）
しかし、上記バランスピン（５００）は、その構造的制
約（例えばその設置位置から考えて当然太さ・長さに関
する寸法・形状等の制限や装備できる数の制限があると
考えらｎる）から捩りバネ剛さを小さく出来ないため、
こ扛による変動トルク吸収効果は前記弾性継手より劣り
、トルク変動の大きな機関では、バランスビン（５００
）のみによる変動トルク吸収では充分でなく、フライホ
イール効果の利用や太陽歯車、遊星歯車（３）及び内歯
車（１）の歯面強度アップを行なわねばならない欠点が
ある。又バランスビン（５００）の場合高度の加工精度
が要求さｎることになる。(Problems to be Solved by the Invention) However, the above-mentioned balance pin (500) has its structural limitations (for example, considering its installation position, it is natural to limit the size and shape of its thickness and length, and the number of units that can be installed). Since it is not possible to reduce the torsion spring stiffness because there are some limitations,
The effect of absorbing fluctuating torque by this lever is inferior to that of the above-mentioned elastic joint, and in engines with large torque fluctuations, the balance bin (500
) alone is not sufficient to absorb the fluctuating torque, and there is a drawback that the flywheel effect must be utilized and the strength of the tooth surfaces of the sun gear, planetary gear (3), and internal gear (1) must be increased. Further, in the case of the balance bin (500), a high degree of processing accuracy is required.
本発明は上記問題を解決するためなさ２″Ｌ、たもので
、バランスビン以外の方法で内歯車を外部ケーシングに
弾性支持し、製造上の簡便さ及び変動トルク吸収の向上
を達成せんとするものである。The present invention has been made in order to solve the above-mentioned problems, and aims to elastically support an internal gear on an external casing using a method other than a balance bin, thereby achieving simplicity in manufacturing and improvement in absorption of fluctuating torque. It is something.
（問題点を解決するための手段）
以下本発明の構成を詳述すると、遊里減速機の内歯車及
びその周りに設けられる外部ケーシングとの間に変形環
状体を装着せしめることにより、該変形環状体全体の変
形による弾性力で内歯車を外部ケーシングに弾性支持す
るようにしたものである。(Means for Solving the Problems) The configuration of the present invention will be described in detail below. By installing a deformed annular body between the internal gear of the free drive reduction gear and the external casing provided around the deformed annular body, the deformed annular body The internal gear is elastically supported by the external casing using the elastic force generated by the deformation of the entire body.
このうち変形環状体は、受けた荷重に応じて弾性変形す
る一体物として構成さｎる鋼薄板やゴム等の弾性体から
なり、前記内歯車と外部ケーシングとの間に装着するた
めに、環形状になっている。Among these, the deformable annular body is made of an elastic body such as a thin steel plate or rubber, and is constructed as an integral body that elastically deforms according to the applied load. It has a shape.
（作 用）
本発明は遊星減速機の内歯車を弾性支持する点において
はバランスビンと同様であるが、バランスビンの場合捩
りバネ剛さに制約が有ったのに対して、変形環状体の変
形による弾性力で支持するため、該変形環状体の仕様を
変える事によりより広範囲の捩りバネ剛さの選択が可能
になる。即ち、変形弾性体の変形の弾性力によりフライ
ホイール効果の利用や歯面強度アップを計らないでも大
きな変動トルクを吸収する事が苛能になる。(Function) The present invention is similar to a balance bin in that it elastically supports the internal gear of a planetary reducer. By changing the specifications of the deformable annular body, it is possible to select a wider range of torsion spring stiffness. In other words, the elastic force of the deformation of the deformable elastic body makes it possible to absorb large fluctuation torque without using the flywheel effect or increasing the tooth surface strength.
（実施例）
第１図（ａ）は本発明の一実施例を示しており、本実施
例では、内歯車αＱの側面（１０ａ）と外部ケーシング
■の縦壁面（２０ａ）との間に変形環状体（４０）を挿
入して、こγしを両面（１ｏａ、） （２０ａ）間で固
定している。該変形環状体（４０）は内歯車αＱの外周
側直近の曲率に合わせたスチール製の円筒殻で構成さγ
１．るもので、溶接によって、前記側面（１０ａ）及び
縦壁面（２Ｏａ）に溶着している。(Embodiment) FIG. 1(a) shows an embodiment of the present invention. In this embodiment, deformation occurs between the side surface (10a) of the internal gear αQ and the vertical wall surface (20a) of the external casing ■. An annular body (40) is inserted to fix the rod between both surfaces (1 oa) (20a). The deformed annular body (40) is composed of a steel cylindrical shell that matches the curvature of the outer peripheral side of the internal gear αQ.
1. It is welded to the side surface (10a) and the vertical wall surface (2Oa).
このような構成により内歯車αＯＥ外部ケーシング−に
弾性支持せしめたため、該内歯車（ト）が太陽歯車（図
示なし）及び遊星歯車（図示なし）を経て変動トルクを
受けた場合、前記変形環状体（４０）は内歯車αＱ及び
外部ケーシング−の間に固着さｎたまま、加わったトル
クに見合ってねじｎる。そのねじ牡によって生ずる弾性
変形により、減速機に加わった変動トルクを吸収する。With this configuration, since the internal gear αOE is elastically supported by the external casing, when the internal gear (G) receives a fluctuating torque via a sun gear (not shown) and a planetary gear (not shown), the deformed annular body (40) remains fixed between the internal gear αQ and the external casing and is screwed in proportion to the applied torque. The elastic deformation caused by the male screw absorbs the fluctuating torque applied to the reducer.
第１図６）は本発明の他の実施例を示しており、本実施
例では内歯車０η外周面（ｎａ）と、外部ケーシング０
１）内周面（２１ａ）との間に変形環状体（４１） ＊
挿入して、こｆ″Ｌを両面（１１ａ）（２１ａ）間で固
定している。該変形環状体（４１）はアコーデオン状に
折りたたんだ鋼薄板からなり、前記内歯車Ｈ及び外部ケ
ーシング？漫の向かい合う面（ｌｌａ） （２ｉａ）が
周方向に平行なため、平面環状で構成さ扛、振動吸収の
際同局方向にたわむものである。Fig. 1 6) shows another embodiment of the present invention, in which the internal gear has an outer peripheral surface (na) of 0η and an outer casing of 0η.
1) Deformed annular body (41) between the inner peripheral surface (21a) *
The deformed annular body (41) is made of a thin steel plate folded into an accordion shape, and is connected to the internal gear H and the external casing. Since the opposing surfaces (lla) and (2ia) of the ring are parallel to the circumferential direction, the ring is formed into a planar annular shape and bends in the same direction when absorbing vibrations.
このような構成により、内歯車α［−外部ケーシングＱ
ルに弾性支持せしめたため、該内歯車０溌が変動トルク
を受けた場合、前記変形環状体（４１）は内歯車αル及
び外部ケーシングＱηの間に固着さ−ｒｔたま抜、円周
方向にたわむことになる。そのたわみによって生ずる弾
性変形により減速機に加わつｆｃ変動トルクを吸収する
。With such a configuration, internal gear α[-external casing Q
Since the internal gear is elastically supported by the outer casing Q, when the internal gear receives a fluctuating torque, the deformed annular body (41) is fixed between the internal gear α and the external casing Qη. It will bend. The elastic deformation caused by the deflection absorbs the fc fluctuation torque applied to the reducer.
第１図（ｃ）は本発明の更に他の実施例を示しており、
本実施例では、前実施例と同じく内歯車（２）の外周面
（ｔ２ａ）と外部ケーシング翰内周面（２２ａ）との間
に変形環状体（４２）を挿入してこｌｒＬを両面（ｔ２
ａ） （２２ａ）間で圧着固定している。該変形環状体
（４２）は、内歯車（６）及び外部ケーシング（２）の
向かい合う面（１２ａ） （２２ａ）が周方向に平向な
ため、環状に形成さ扛、その材質とじてはゴムが用いら
ｎている。FIG. 1(c) shows still another embodiment of the present invention,
In this embodiment, as in the previous embodiment, a deformed annular body (42) is inserted between the outer circumferential surface (t2a) of the internal gear (2) and the inner circumferential surface (22a) of the outer casing.
a) It is crimped and fixed between (22a). The deformed annular body (42) is formed into an annular shape because the opposing surfaces (12a) (22a) of the internal gear (6) and the external casing (2) are flat in the circumferential direction, and its material is rubber. is not used.
このような構成ζこより、内歯車（６）が変動トルクを
受けた場合、前記変形環状体（４２）は内歯車αつ及び
外部ケーシング（イ）の間に固着さｎた才ま１弾性変形
することになる。Due to this configuration, when the internal gear (6) is subjected to a fluctuating torque, the deformable annular body (42) is fixed between the internal gear α and the external casing (A) and is elastically deformed. I will do it.
そして該変形環状体（４２）の弾性力ｌこより減速機に
加わった変動トルクを吸収する。The elastic force of the deformable annular body (42) absorbs the fluctuating torque applied to the reducer.
（発明の効果）
以上説明してきたように本発明の構成によｎば、変形環
状体により内歯車を外部ケーシングに弾性支持せしめて
おり、この変形環状体の弾性変形による振動吸収が著し
いため、遊星減速機内に内蔵さ扛る機構のウチバランス
ビンによる吸収機構に比べ、非常に高い変動トルク吸収
効果を得ることができ、又製造も容易である。(Effects of the Invention) As explained above, according to the configuration of the present invention, the internal gear is elastically supported by the external casing by the deformed annular body, and vibration absorption due to the elastic deformation of the deformed annular body is significant. Compared to an absorption mechanism using an internal balance bin, which is a mechanism built into the planetary reducer, a very high fluctuating torque absorption effect can be obtained, and manufacturing is also easy.
尚、本発明は減速機にのみ言及しているが、増速機等変
速機一般にも適用できることは言うまでもない。Although the present invention refers only to a reduction gear, it goes without saying that it can also be applied to transmissions in general, such as a speed increaser.
第１図（ａ）は本発明の一実施例を示す部分省略図、同
図（ｂ）は本発明の他の実施例を示す説明図、同図（Ｑ
）は本発明の更に他の実施例を示す部分省略図、第２図
はバランスピンヲ用いた遊星減速機内の変動トルク吸収
機構を示す斜視図である。
図中、（１）α１（１１）（６）は内歯車、（２） Ｈ
０η（イ）は外部ケーシング、 （４０Ｘ４１Ｘ４２
）は変形環状体、（５００）はバランスピンを各示す。FIG. 1(a) is a partially omitted diagram showing one embodiment of the present invention, FIG. 1(b) is an explanatory diagram showing another embodiment of the present invention, and FIG.
) is a partially omitted view showing still another embodiment of the present invention, and FIG. 2 is a perspective view showing a fluctuating torque absorption mechanism in a planetary reducer using a balance pin. In the figure, (1) α1 (11) (6) are internal gears, (2) H
0η (A) is the external casing, (40X41X42
) indicates a deformed annular body, and (500) indicates a balance pin.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2190685A JPS61184253A (en) | 1985-02-08 | 1985-02-08 | Fluctuation torque absorption mechanism in planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2190685A JPS61184253A (en) | 1985-02-08 | 1985-02-08 | Fluctuation torque absorption mechanism in planetary reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61184253A true JPS61184253A (en) | 1986-08-16 |
Family
ID=12068141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2190685A Pending JPS61184253A (en) | 1985-02-08 | 1985-02-08 | Fluctuation torque absorption mechanism in planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61184253A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010151143A (en) * | 2010-03-29 | 2010-07-08 | Hitachi Automotive Systems Ltd | Variable valve operating device for internal combustion engine |
-
1985
- 1985-02-08 JP JP2190685A patent/JPS61184253A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010151143A (en) * | 2010-03-29 | 2010-07-08 | Hitachi Automotive Systems Ltd | Variable valve operating device for internal combustion engine |
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