JPS582543B2 - Gear motor with small tooth difference internal rotating planetary gear - Google Patents
Gear motor with small tooth difference internal rotating planetary gearInfo
- Publication number
- JPS582543B2 JPS582543B2 JP6078378A JP6078378A JPS582543B2 JP S582543 B2 JPS582543 B2 JP S582543B2 JP 6078378 A JP6078378 A JP 6078378A JP 6078378 A JP6078378 A JP 6078378A JP S582543 B2 JPS582543 B2 JP S582543B2
- Authority
- JP
- Japan
- Prior art keywords
- planetary gear
- fixed
- gear
- torsion bar
- hollow
- 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.)
- Expired
Links
Landscapes
- Retarders (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
【発明の詳細な説明】
この発明はトーションバーを用いた小歯数差内転遊星歯
車付ギヤモータに関するものにして、従来の遊星歯車減
速装置は内歯車に対して歯数がわずかに少ない遊星歯車
をかみ合せただけで、大きな減速比が得られる利点はあ
るが、公転する遊星歯車の自転運動を出力軸に取り出す
ためにビン車や自在接手などが使用されており、これら
の工作に高い精密度を要し、製作費が高くなる欠点があ
った。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gear motor with a small tooth difference internal planetary gear using a torsion bar. Although there is an advantage in that a large reduction ratio can be obtained simply by meshing the gears, pin wheels and universal joints are used to extract the rotational motion of the revolving planetary gears to the output shaft, and these operations require high precision. The drawback was that it required a lot of time and production costs were high.
この発明は、遊星歯車の自転運動をトーションバーによ
って出力軸に取り出すことにより、上述の欠点を除去す
ることを目的としたものである。The object of the present invention is to eliminate the above-mentioned drawbacks by extracting the rotational motion of the planetary gear onto the output shaft using a torsion bar.
この発明を図面にもとすいて説明すると、１ 第１図及
び第２図は特許請求の範囲１に係る実施例の断面図及び
正面図にして、図中に示すように、中空電動機軸３の一
端に偏心輪４を固定し、偏心輪４上には軸受１１を介し
て、遊星歯車５を回転自在に取りつけ、この遊星歯車５
に対して歯数のわずかに多い内歯車６をかみ合せる。To explain this invention based on the drawings, 1. FIG. 1 and FIG. 2 are a sectional view and a front view of an embodiment according to claim 1, and as shown in the drawings, a hollow electric motor shaft 3 An eccentric wheel 4 is fixed to one end, and a planetary gear 5 is rotatably mounted on the eccentric wheel 4 via a bearing 11.
An internal gear 6 having a slightly larger number of teeth is engaged with the inner gear 6.
内出車６は出力軸７に固定する。中空電動機軸３の内部
にはトーションバー８を貫通させ、そので端を機枠１０
に連結し、他端は遊星歯車５に連結する。The inner carriage 6 is fixed to the output shaft 7. A torsion bar 8 is passed through the inside of the hollow electric motor shaft 3, and the end thereof is connected to the machine frame 10.
The other end is connected to the planetary gear 5.
９は出力軸７を支える本体である。9 is a main body that supports the output shaft 7.
この実施例では上述のように構成しているので、中空電
動機軸３を高速にて回転させると、遊星歯車５は偏心輪
４に案内されて、軸心１−１のまわりに公転するが、ト
ーションバー８により機枠１０と連結されているため、
自転することなく内歯車６の内側を公転することになり
、一回公転するごとに両歯車の歯数差の分だけ、かみ合
いの位相がずれる結果を生じ内歯車６は低速で回転し、
この内歯車６に固定された出力軸７が低速で回転する。Since this embodiment is configured as described above, when the hollow electric motor shaft 3 is rotated at high speed, the planetary gear 5 is guided by the eccentric ring 4 and revolves around the axis 1-1. Since it is connected to the machine frame 10 by the torsion bar 8,
It revolves inside the internal gear 6 without rotating, and each time it revolves, the meshing phase shifts by the difference in the number of teeth between the two gears, causing the internal gear 6 to rotate at a low speed.
An output shaft 7 fixed to this internal gear 6 rotates at low speed.
なお、トーションバー８は、第１図の左端では定位置に
あるが、右端では遊星歯車５が公転するにつれて、第３
図に示すようにその位置が変化する。Note that the torsion bar 8 is in a fixed position at the left end in FIG. 1, but at the right end, as the planetary gear 5 revolves, the torsion bar 8
Its position changes as shown in the figure.
図中１−１は中空電動機軸３ならびに出力軸７の回転軸
心を示し、２−２は遊星歯車５の軸心を示し、遊星歯車
５が半回電だけ公転した後には、遊星歯車５の軸心は２
′−２′に移動し、トーションバー８はこのようにくり
かえし曲げられながら回転を伝える。In the figure, 1-1 indicates the rotation axis of the hollow electric motor shaft 3 and the output shaft 7, and 2-2 indicates the axis of the planetary gear 5. After the planetary gear 5 has revolved by half a rotation, the planetary gear 5 The axis of
'-2', and the torsion bar 8 transmits rotation while being bent repeatedly in this manner.
しかし、１−１と軸心２−２、または軸心２′−２′と
の間隔は小さい量であり、トーションバー８の直径が小
さく、長さが長いため、無理なく回転力を伝えることが
できる。However, since the distance between 1-1 and the axis 2-2 or 2'-2' is small, and the torsion bar 8 has a small diameter and a long length, it is difficult to transmit rotational force without difficulty. I can do it.
２ 第４図は特許請求の範囲２に係る実施例の断面図に
して、図中に示すように、モータ１２の高速回転軸３′
の一端に偏心輪４を固定し、偏心輪４上に軸受１１を介
して遊星歯車５を取りつけ、この遊星歯車５を、遊星歯
車５より歯数がわずかに多く、機枠１０に固定してある
内歯車６′とかみ合せる。2. FIG. 4 is a sectional view of an embodiment according to claim 2, and as shown in the figure, the high-speed rotating shaft 3' of the motor 12 is
An eccentric wheel 4 is fixed to one end, a planetary gear 5 is mounted on the eccentric wheel 4 via a bearing 11, this planetary gear 5 has slightly more teeth than the planetary gear 5, and is fixed to a machine frame 10. It meshes with a certain internal gear 6'.
しかして、トーションバー８の一端は遊星歯車５の自転
軸上に固定し、他端は中空出力軸７′を貫通して、その
先端に固定してある。One end of the torsion bar 8 is fixed on the rotation axis of the planetary gear 5, and the other end passes through the hollow output shaft 7' and is fixed to the tip thereof.
この実施例では上述のように固定しているのでモータ１
２の高速回転軸３′を高速にて回転させると、遊星歯車
５は偏心輪４に案内されて固定内歯車６め内側をかみ合
って移動し、遊星歯車５が一公転するごとに歯数差の分
だけ遊星歯車５の位相がずれて低速の自転運動が軸心２
−２上に生じ、この回転がトーンヨンバー８を介して中
空出力軸７′に伝達される。In this embodiment, the motor 1 is fixed as described above.
When the high-speed rotating shaft 3' of No. 2 is rotated at high speed, the planetary gear 5 is guided by the eccentric ring 4 and moves while meshing with the inside of the fixed internal gear 6, and the difference in the number of teeth occurs each time the planetary gear 5 makes one revolution. The phase of the planetary gear 5 is shifted by the amount of
-2, and this rotation is transmitted via the tone bar 8 to the hollow output shaft 7'.
なお、トーションバー８は上述１の実施例において説明
したように作用して無理なく回転力を伝える。Incidentally, the torsion bar 8 acts as explained in the above-mentioned embodiment 1 and transmits the rotational force without difficulty.
また、この実施例においては、高速回転軸３′を偏心輪
４よりはずし、モータ１２を他の任意のモータととらか
え、そのモータの高速回転軸を偏心輪４と固定すれば、
モータ１２にとりつけた場合と全く同様の作用と効果が
得られる。Furthermore, in this embodiment, if the high-speed rotation shaft 3' is removed from the eccentric wheel 4, the motor 12 is replaced with any other motor, and the high-speed rotation shaft of that motor is fixed to the eccentric wheel 4,
Exactly the same action and effect as when attached to the motor 12 can be obtained.
３ 第５図は特許請求の範囲３に係る実施例の断面図に
して、図中に示すように、中空電動機軸３の一端に偏心
輪４を固定し、偏心輪４上には軸受１１を介して遊星歯
車５を回転自在に取りつけ、この遊星歯車５に対して歯
数がわずかに多い固定内歯車６′をかみ合せる。3. FIG. 5 is a sectional view of an embodiment according to claim 3. As shown in the figure, an eccentric wheel 4 is fixed to one end of a hollow electric motor shaft 3, and a bearing 11 is mounted on the eccentric wheel 4. A planetary gear 5 is rotatably mounted through the planetary gear 5, and a fixed internal gear 6' having a slightly larger number of teeth is meshed with the planetary gear 5.
なお、固定内歯車６′は機枠１０に固定してある。Note that the fixed internal gear 6' is fixed to the machine frame 10.
しかして、トーションバー８の一端は遊星歯車５の自転
軸上に固定し、その他端は中空電動機軸３を貫通してい
る中空出力軸７′を貫通して、中空出力軸７′の先端に
固定してある。One end of the torsion bar 8 is fixed on the rotation axis of the planetary gear 5, and the other end passes through the hollow output shaft 7' that passes through the hollow motor shaft 3 and is attached to the tip of the hollow output shaft 7'. It is fixed.
この実施例においては、上述のように構成しているので
、電動機を高速で回転させると、遊星歯車５は中空電動
機軸３及び偏心輪４に案内されて公転するが、小歯数差
の固定内山車６とかみ合っているだめに一公転ごとに両
歯車の歯数差の分だけ位相がずれることになり、遊星歯
車５が低速で自転する。In this embodiment, since the structure is as described above, when the electric motor is rotated at high speed, the planetary gear 5 is guided by the hollow electric motor shaft 3 and the eccentric ring 4 and revolves, but the difference in the number of small teeth is fixed. Since it is meshed with the inner cast wheel 6, the phase shifts by the difference in the number of teeth between the two gears every revolution, and the planetary gear 5 rotates at a low speed.
この自転運動はトーションバー８を介して中空出力軸７
′に伝達される。This rotational movement is transmitted to the hollow output shaft 7 via the torsion bar 8.
′ is transmitted.
この場合、遊星歯車５は公転に伴い、位置を変えるため
トーンヨンバー８の左端の位置は変動するが、右端は定
位置であるので、軸心が１−１を保つことができる。In this case, the planetary gear 5 changes its position as it revolves, so the position of the left end of the tone bar 8 fluctuates, but the right end remains in a fixed position, so the axial center can be maintained at 1-1.
なお、トーンヨンバー８は上述の１及び２の実施例にお
いて説明したように作用して無理なく回電力を伝える。Note that the tone yomber 8 functions as explained in the above-mentioned embodiments 1 and 2, and transmits the regenerative power without difficulty.
以上の各実施例においては、インポリュート歯形歯車を
使用する場合を示してあるが、円弧歯形歯車、内歯車歯
形としてローラを用いた歯車など他の種類の歯形を有す
る歯車を用いても、全く同じ作用および効果がある。In each of the above embodiments, a case is shown in which an integral tooth profile gear is used, but even if a gear with other types of tooth profile is used, such as a circular arc tooth gear or a gear using a roller as an internal gear tooth profile, it is possible to It has the same action and effect.
この発明は上述のように、自在軸接手やピン車などの複
雑で高精度の伝達装置を用いず、トーションバーと歯車
２個だけの簡単な構成で大きい変速比を有するギヤモー
タを作ることができるので、工作誤差に対して特別の考
慮を払う必要がなく工作が非常に簡単であるので、生産
費が安くなり、経済的に優れた効果を持っている。As mentioned above, this invention makes it possible to create a gear motor with a large speed ratio with a simple configuration of only a torsion bar and two gears, without using complex and high-precision transmission devices such as universal joints or pin wheels. Therefore, there is no need to pay special consideration to machining errors, and the machining is very simple, resulting in low production costs and excellent economic effects.
第１図は実施例１の断面図、第２図は第１図の正面説明
図、第３図はこの発明の各実施例に用いるトーションバ
ーの説明図、第４図は実施例２の断面図、第５図は実施
例３の断面図を示す。
主な部分の符号の説明、３・・・・・・中空電動機軸、
４・・・・・・偏心輪、５・・・・・・遊星歯屯、６・
・・・・・内歯車、７・・・・・・出力軸、８・・・・
・・トーションバー。FIG. 1 is a sectional view of Embodiment 1, FIG. 2 is a front explanatory view of FIG. 1, FIG. 3 is an explanatory diagram of a torsion bar used in each embodiment of the present invention, and FIG. FIG. 5 shows a cross-sectional view of the third embodiment. Explanation of symbols of main parts, 3...Hollow electric motor shaft,
4... Eccentric wheel, 5... Planetary gear, 6.
...Internal gear, 7...Output shaft, 8...
...Torsion bar.
Claims (1)
１１を介して取りつけた遊星歯車５を、この遊星歯数５
より歯数のわずかに多い出力内歯車６とかみ合せ、中空
電動機軸３内を貫通し一端を機枠１０に固定したトーシ
ョンバー８の他端を遊星歯車５に連結することを特徴と
したギヤモータ。 ２ 電動機軸３の一端に固定した偏心輪４上に軸受１１
を介して取りつけた遊星歯車５を、この遊星歯車５より
歯数がわずかに多く、機枠１０に固定してある固定内歯
車６′とかみ合せ、中空出力軸７′内を貫通し一端を遊
星歯車５の自転軸上に固定したトーションバー８の他端
を中空出力軸７′の先端に固定することを特徴とするギ
ヤモータ。 ３ 中空電動軸３の一端に固定した偏心輪４上に軸受１
１を介して、回転自在に取りつけた遊星歯車５を、この
遊星歯車５より歯数がわずかに多く、機枠１０に固定し
てある内歯車６′とかみ合せ、中空電動機軸３内を貫通
させて設けた中空出力軸７′内を貫通し、一端を遊星歯
車５の自転軸上に固定したトーションバー８の他端を中
空出力軸７′の先端に固定することを特徴としたギヤモ
ータ。[Scope of Claims] 1. A planetary gear 5 attached via a bearing 11 to an eccentric wheel 4 fixed to one end of a hollow electric motor shaft 3, with the number of planetary teeth 5.
A gear motor characterized in that a torsion bar 8 is meshed with an output internal gear 6 having a slightly larger number of teeth, passes through a hollow electric motor shaft 3, has one end fixed to a machine frame 10, and connects the other end of a torsion bar 8 to a planetary gear 5. . 2 A bearing 11 is mounted on the eccentric wheel 4 fixed to one end of the motor shaft 3.
The planetary gear 5 attached via the planetary gear 5 is meshed with a fixed internal gear 6' which has slightly more teeth than the planetary gear 5 and which is fixed to the machine frame 10, passes through the inside of the hollow output shaft 7', and connects one end to the fixed internal gear 6'. A gear motor characterized in that the other end of a torsion bar 8 fixed on the rotation axis of a planetary gear 5 is fixed to the tip of a hollow output shaft 7'. 3 Bearing 1 is mounted on eccentric wheel 4 fixed to one end of hollow electric shaft 3.
1, a planetary gear 5 rotatably mounted is engaged with an internal gear 6', which has slightly more teeth than this planetary gear 5 and is fixed to the machine frame 10, and penetrates the inside of the hollow electric motor shaft 3. A gear motor characterized in that a torsion bar 8 passes through a hollow output shaft 7' provided in the same manner as shown in FIG.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6078378A JPS582543B2 (en) | 1978-05-22 | 1978-05-22 | Gear motor with small tooth difference internal rotating planetary gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6078378A JPS582543B2 (en) | 1978-05-22 | 1978-05-22 | Gear motor with small tooth difference internal rotating planetary gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54152112A JPS54152112A (en) | 1979-11-30 |
| JPS582543B2 true JPS582543B2 (en) | 1983-01-17 |
Family
ID=13152225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6078378A Expired JPS582543B2 (en) | 1978-05-22 | 1978-05-22 | Gear motor with small tooth difference internal rotating planetary gear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS582543B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987000987A1 (en) * | 1985-07-30 | 1987-02-12 | Teijin Seiki Co., Ltd. | Reduction gear provided with driving power source |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4398110A (en) * | 1982-05-05 | 1983-08-09 | Westinghouse Electric Corp. | Harmonic electric actuator |
| JPS62165496U (en) * | 1986-04-11 | 1987-10-21 |
-
1978
- 1978-05-22 JP JP6078378A patent/JPS582543B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987000987A1 (en) * | 1985-07-30 | 1987-02-12 | Teijin Seiki Co., Ltd. | Reduction gear provided with driving power source |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54152112A (en) | 1979-11-30 |
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