JPH063205Y2 - Planetary gear - Google Patents
Planetary gearInfo
- Publication number
- JPH063205Y2 JPH063205Y2 JP1986066394U JP6639486U JPH063205Y2 JP H063205 Y2 JPH063205 Y2 JP H063205Y2 JP 1986066394 U JP1986066394 U JP 1986066394U JP 6639486 U JP6639486 U JP 6639486U JP H063205 Y2 JPH063205 Y2 JP H063205Y2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- planetary
- planetary gear
- internal
- gears
- 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 - Lifetime
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
- F16H2001/289—Toothed gearings for conveying rotary motion with gears having orbital motion comprising two or more coaxial and identical sets of orbital gears, e.g. for distributing torque between the coaxial sets
Landscapes
- Gears, Cams (AREA)
- Retarders (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、任意の値にバックラッシュを制限すること
が可能な遊星歯車装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a planetary gear device capable of limiting backlash to an arbitrary value.
ロボット用、印刷機械用、フィルムコーティング用の遊
星歯車装置では、回転方向が一方向だけに限らず、随時
正逆に切り替えられながら運転される。一方、このよう
な遊星歯車装置には必ずバックラッシュ（がた）が設け
られており、このため回転方向が正逆に切り替えられる
度に、バックラッシュ分だけ回転量が遅れ、伝達が不正
確になる。In planetary gear units for robots, printing machines, and film coating, the rotation direction is not limited to one direction, and the planetary gear units are operated while being switched between normal and reverse directions at any time. On the other hand, such a planetary gear system is always provided with a backlash, and therefore, whenever the rotation direction is switched between forward and reverse, the amount of rotation is delayed by the amount of backlash, resulting in inaccurate transmission. Become.
そこで、出来るだけバックラッシュを制限するために、
遊星歯車装置の太陽歯車、遊星歯車、内歯歯車等の各歯
車を高精度に仕上げ、歯車の歯厚を所定の狭い寸法範囲
内に仕上げていた。Therefore, in order to limit the backlash as much as possible,
Each gear such as a sun gear, a planetary gear, and an internal gear of a planetary gear device is finished with high accuracy, and a tooth thickness of the gear is finished within a predetermined narrow size range.
しかしながら、歯車を高精度に仕上げる従来の遊星歯車
装置では、バックラッシュの制限範囲が厳しくなると、
歯車に許容される歯厚の寸法範囲は非常に狭いものとな
り、このためには極めて高精度な歯車を必要とし、非常
に高価な歯車装置となる。また、一度歯厚が所定の寸法
範囲外に仕上ると、バックラッシュの制限を外れてしま
い、バックラッシュの調整はもちろん、その歯車を使用
することが出来なくなるという問題点を有していた。However, in the conventional planetary gear device that finishes the gear with high accuracy, if the limit range of backlash becomes severe,
The dimensional range of the tooth thickness allowed for the gear is extremely narrow, which requires a gear with extremely high precision, which results in a very expensive gear device. Further, once the tooth thickness is finished outside the predetermined size range, there is a problem that the backlash is out of the limit and the gear cannot be used as well as adjusting the backlash.
本考案は、従来の技術の有するこのような問題点に鑑み
てなされたものであり、その目的とするところは、任意
の値にバックラッシュを制限することが可能な遊星歯車
装置を提供しようとするものである。The present invention has been made in view of the above problems of the conventional technology, and an object of the present invention is to provide a planetary gear device capable of limiting backlash to an arbitrary value. To do.
上記目的を達成するために、本考案における遊星歯車装
置は、遊星枠の遊星軸に回転自在に支持された遊星歯車
と、該遊星歯車に噛み合う内歯歯車及び太陽歯車を備え
た遊星歯車装置において、内歯歯車と遊星歯車、太陽歯
車と遊星歯車又は内歯歯車と太陽歯車のうち何れか一組
をそれぞれ２列歯車とし、この２列歯車の歯面に回転方
向の位相差を付与したものである。In order to achieve the above object, a planetary gear device according to the present invention is a planetary gear device including a planetary gear rotatably supported by a planetary shaft of a planetary frame, and an internal gear and a sun gear that mesh with the planetary gear. The internal gear and the planetary gear, the sun gear and the planetary gear, or the internal gear and the sun gear are each set as a two-row gear, and the phase difference in the rotational direction is given to the tooth surface of the two-row gear. Is.
２列歯車の歯面に付与された回転方向の位相差により、
回転方向の正逆で発生する遊星歯車、内歯歯車及び太陽
歯車間のバックラッシュが吸収される。Due to the phase difference in the rotation direction given to the tooth flanks of the two-row gear,
The backlash between the planetary gear, the internal gear, and the sun gear that is generated in the normal and reverse directions of rotation is absorbed.
以下、図面を参照しつつ本考案の実施例を説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本考案の遊星歯車装置の要部の断面図、第２図
及び第３図は歯面の噛み合い状態を示す図である。FIG. 1 is a sectional view of a main part of a planetary gear device of the present invention, and FIGS. 2 and 3 are views showing a meshing state of tooth surfaces.
第１図において、ケーシング７に回転自在に軸支される
遊星枠６に遊星軸６Ａが設けられており、この遊星軸６
Ａに２列の遊星歯車３，４が回転自在に支持されてい
る。そして、遊星歯車３，４に噛み合う１個の太陽歯車
５が中心に設けられており、更に遊星歯車３，４のそれ
ぞれに噛み合う２列の内歯歯車１，２がケーシング７に
固定されている。第１図では遊星軸６Ａは１本だけしか
図示してないが、通常は遊星枠６の周方向に複数本を等
間隔に設け、それぞれに２列の遊星歯車３，４を支持す
るようにしている。ところで、２列の内歯歯車１，２
は、回転方向に歯面の位相を僅かにずらせた後、ケーシ
ング７にボルト８とピン９で固定されている。このよう
な内歯歯車１，２における位相差によってこれと噛み合
う遊星歯車３，４にも位相差が生じる。したがって、第
２図に示すように、太陽歯車５は一方の遊星歯車３に対
しては右歯車で噛み合い、かつその遊星歯車３が内歯歯
車１に対し左歯車で噛み合う関係に設定できる。そし
て、第３図に示すように、太陽歯車５は他方の遊星歯車
４に対しては左歯面で噛み合い、かつその遊星歯車４が
内歯歯車２に対して右歯面で噛み合うように設定でき
る。In FIG. 1, a planetary frame 6 rotatably supported by a casing 7 is provided with a planetary shaft 6A.
Two rows of planetary gears 3 and 4 are rotatably supported by A. A single sun gear 5 that meshes with the planetary gears 3 and 4 is provided at the center, and two rows of internal gears 1 and 2 that mesh with the planetary gears 3 and 4 are fixed to the casing 7. . Although only one planetary shaft 6A is shown in FIG. 1, normally, a plurality of planetary shafts 6A are provided at equal intervals in the circumferential direction of the planetary frame 6 so that two planetary gears 3 and 4 are supported respectively. ing. By the way, two rows of internal gears 1, 2
Is slightly fixed in phase to the tooth surface in the rotational direction, and then fixed to the casing 7 with bolts 8 and pins 9. Due to the phase difference between the internal gears 1 and 2, the planet gears 3 and 4 meshing with the internal gears 1 and 2 also have a phase difference. Therefore, as shown in FIG. 2, the sun gear 5 can be set so that one planetary gear 3 meshes with the right gear and that the planetary gear 3 meshes with the internal gear 1 with the left gear. Then, as shown in FIG. 3, the sun gear 5 is set so as to mesh with the other planetary gear 4 on the left tooth surface, and the planetary gear 4 meshes with the internal gear 2 on the right tooth surface. it can.
上述のような歯面の接触関係をセットした遊星歯車装置
の運転において、第２図の太陽歯車５の時計方向（Ａ方
向）の動力の伝達は、第２図の歯面接触関係にある遊星
歯車３と内歯歯車１の噛み合いによって行なわれるが、
他方の遊星歯車４と内歯歯車２の噛み合いを介しては、
第３図のような歯面噛み合い関係であるため噛み合いが
行われない。すなわち、遊星歯車４に関して、歯面の接
触関係が回転方向に対してバックラッシュに相当する隙
間ｃ′を介在した状態にし、反対側の歯面に追従回転す
るだけである。第３図の太陽歯車５の反時計方向（Ｂ方
向）の動力の伝達は、第３図の歯面接触関係にある遊星
歯車４と内歯歯車２の噛み合いによって行なわれるが、
他方の遊星歯車３と内歯歯車１の噛み合いを介しては、
第２図のような歯面噛み合い関係であるため噛み合いが
行われない。すなわち、遊星歯車３に関しては、歯面の
接触関係が回転方向に対してバックラッシュに相当する
隙間ｃを介在した状態にし、反対側の歯面に追従回転す
るだけである。In the operation of the planetary gear set in which the contact relationship between the tooth surfaces is set as described above, the power transmission in the clockwise direction (A direction) of the sun gear 5 in FIG. 2 is performed by the planets in the tooth surface contact relationship in FIG. It is carried out by the meshing of the gear 3 and the internal gear 1,
Through the meshing of the other planetary gear 4 and the internal gear 2,
Since the tooth surface meshes as shown in FIG. 3, meshing is not performed. That is, regarding the planetary gear 4, the contact relationship between the tooth flanks is only brought into a state in which there is a gap c ′ corresponding to the backlash in the rotational direction, and the tooth flank on the opposite side is simply rotated. Transmission of power in the counterclockwise direction (B direction) of the sun gear 5 in FIG. 3 is performed by the meshing of the planetary gear 4 and the internal gear 2 in the tooth surface contact relationship of FIG.
Through the meshing of the other planetary gear 3 and the internal gear 1,
No meshing occurs because the tooth surface meshes as shown in FIG. That is, regarding the planetary gear 3, the contact relationship between the tooth flanks is only brought into a state in which there is a gap c corresponding to the backlash in the rotational direction, and the tooth flank on the opposite side is rotated.
上述のように動力を伝達しない側の太陽歯車と内歯歯車
が単に追従回転するため、回転が右回転から左回転へ、
また左回転から右回転へ切り替わるとき、内歯歯車１，
２及び遊星歯車３，４における位相差分だけバックラッ
シュが吸収される。すなわち、内歯歯車１，２及び遊星
歯車３，４に位相差を与えることで、遊星歯車装置にお
けるバックラッシュを０に至る任意のバックラッシュと
することができる。As described above, since the sun gear and the internal gear on the side that does not transmit power simply follow and rotate, the rotation changes from right rotation to left rotation,
Also, when switching from left rotation to right rotation, the internal gear 1,
The backlash is absorbed by the phase difference between 2 and the planetary gears 3, 4. That is, by giving a phase difference to the internal gears 1 and 2 and the planetary gears 3 and 4, the backlash in the planetary gear device can be set to an arbitrary backlash down to zero.
なお、以上の説明は、内歯歯車１，２と遊星歯車３，４
のそれぞれを２列歯車にし、遊星歯車３，４及び内歯歯
車１，２に位相差を与える場合に関するものである。し
かし、この場合に限ることなく、遊星歯車と太陽歯車の
それぞれを２列歯車とし、太陽歯車及び遊星歯車に位相
差を持たせるものでもよい。この場合、太陽歯車と遊星
歯車に位相差を持たせた後、太陽歯車をボルトとピン等
で軸に固定する。さらに、遊星歯車は１列歯車であっ
て、内歯歯車と太陽歯車のそれぞれを２列歯車にし、内
歯歯車及び太陽歯車に位相差を持たせるものでもよい。
この場合、内歯歯車及び太陽歯車の位相差を持たせた
後、内歯歯車及び太陽歯車の両方をボルトとピン等でケ
ーシングや軸に固定する。The above description is based on the explanation of the internal gears 1 and 2 and the planetary gears 3 and 4.
Each of the two gears is a two-row gear, and the planet gears 3, 4 and the internal gears 1, 2 are given a phase difference. However, the present invention is not limited to this case, and each of the planetary gear and the sun gear may be a two-row gear, and the sun gear and the planetary gear may have a phase difference. In this case, after the sun gear and the planet gears have a phase difference, the sun gear is fixed to the shaft with bolts and pins. Further, the planetary gear may be a single-row gear, and each of the internal gear and the sun gear may be a double-row gear, and the internal gear and the sun gear may have a phase difference.
In this case, after providing the phase difference between the internal gear and the sun gear, both the internal gear and the sun gear are fixed to the casing or the shaft with bolts and pins.
本考案における遊星歯車装置は、遊星枠の遊星軸に回転
自在に支持された遊星歯車と、該遊星歯車に噛み合う内
歯歯車及び太陽歯車を備えた遊星歯車装置において、内
歯歯車と遊星歯車、太陽歯車と遊星歯車又は内歯歯車と
太陽歯車のうち何れか一組をそれぞれ２列歯車とし、こ
の２列歯車の歯面に回転方向の位相差を付与したもので
あり、回転方向の正逆で発生する遊星歯車、内歯歯車及
び太陽歯車間のバックラッシュが吸収され、回転方向の
位相差の程度でバックラッシュを調整することができる
ので、従来のように歯車の歯厚を狭い寸法範囲内に仕上
げなくても、より小さいバックラッシュの遊星歯車装置
を容易に得ることができる。The planetary gear device according to the present invention is a planetary gear device including a planetary gear rotatably supported on a planetary shaft of a planetary frame, an internal gear and a sun gear that mesh with the planetary gear, and an internal gear and a planetary gear, The sun gear and the planetary gear, or the internal gear and the sun gear are each set as a two-row gear, and a phase difference in the rotation direction is given to the tooth surface of the two-row gear. The backlash between the planetary gears, internal gears and sun gears generated by the above is absorbed, and the backlash can be adjusted by the degree of the phase difference in the rotation direction. It is possible to easily obtain a planetary gear unit having a smaller backlash without finishing inside.
第１図は本考案の遊星歯車装置の要部の断面図、第２図
及び第３図は歯面の噛み合い状態を示す図である。 １，２…内歯歯車、 ３，４…遊星歯車、 ５…太陽歯車、 ６…遊星枠、 ６Ａ…遊星軸。FIG. 1 is a sectional view of a main part of a planetary gear device of the present invention, and FIGS. 2 and 3 are views showing a meshing state of tooth surfaces. 1, 2 ... Internal gear, 3, 4 ... Planetary gear, 5 ... Sun gear, 6 ... Planetary frame, 6A ... Planetary shaft.
Claims (1)
星歯車と、該遊星歯車に噛み合う内歯歯車及び太陽歯車
を備えた遊星歯車装置において、内歯歯車と遊星歯車、
太陽歯車と遊星歯車又は内歯歯車と太陽歯車のうち何れ
か一組をそれぞれ２列歯車とし、この２列歯車の歯面に
回転方向の位相差を付与したことを特徴とする遊星歯車
装置。1. A planetary gear device comprising a planetary gear rotatably supported on a planetary shaft of a planetary frame, and an internal gear and a sun gear meshing with the planetary gear, wherein the internal gear and the planetary gear are:
A planetary gear device characterized in that any one set of a sun gear and a planetary gear or an internal gear and a sun gear is a two-row gear, and a phase difference in a rotational direction is given to a tooth surface of the two-row gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986066394U JPH063205Y2 (en) | 1986-04-30 | 1986-04-30 | Planetary gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986066394U JPH063205Y2 (en) | 1986-04-30 | 1986-04-30 | Planetary gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62177959U JPS62177959U (en) | 1987-11-12 |
| JPH063205Y2 true JPH063205Y2 (en) | 1994-01-26 |
Family
ID=30904364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986066394U Expired - Lifetime JPH063205Y2 (en) | 1986-04-30 | 1986-04-30 | Planetary gear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH063205Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS636248A (en) * | 1986-06-24 | 1988-01-12 | Toyo Seimitsu Zoki Kk | Speed change device with planetary gearing mechanism |
| JP4583304B2 (en) * | 2005-12-27 | 2010-11-17 | 株式会社エンプラス | Gear device |
| JP6160440B2 (en) * | 2013-10-24 | 2017-07-12 | 株式会社ジェイテクト | Planetary gear set |
| JP2017048919A (en) * | 2015-09-03 | 2017-03-09 | トヨタ自動車株式会社 | Planetary gear set |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5894673U (en) * | 1981-12-21 | 1983-06-27 | 三菱樹脂株式会社 | Sterilization plastic packaging bag |
| JPS60103755U (en) * | 1983-12-22 | 1985-07-15 | 日産ディーゼル工業株式会社 | Gear type power transmission device |
| JPS60194646U (en) * | 1984-06-06 | 1985-12-25 | 住友重機械工業株式会社 | planetary gearbox |
| JPS61602U (en) * | 1984-06-08 | 1986-01-06 | 株式会社山武 | programmable controller |
-
1986
- 1986-04-30 JP JP1986066394U patent/JPH063205Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62177959U (en) | 1987-11-12 |
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