JPS60179545A - Speed reduction unit - Google Patents

Speed reduction unit

Info

Publication number
JPS60179545A
JPS60179545A JP3459284A JP3459284A JPS60179545A JP S60179545 A JPS60179545 A JP S60179545A JP 3459284 A JP3459284 A JP 3459284A JP 3459284 A JP3459284 A JP 3459284A JP S60179545 A JPS60179545 A JP S60179545A
Authority
JP
Japan
Prior art keywords
gear
planetary gear
outer ring
planetary
ring gear
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
Application number
JP3459284A
Other languages
Japanese (ja)
Inventor
Hiroshi Harada
宏 原田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP3459284A priority Critical patent/JPS60179545A/en
Publication of JPS60179545A publication Critical patent/JPS60179545A/en
Pending legal-status Critical Current

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
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • 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
    • F16H2001/2881—Toothed gearings for conveying rotary motion with gears having orbital motion comprising two axially spaced central gears, i.e. ring or sun gear, engaged by at least one common orbital gear wherein one of the central gears is forming the output

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

PURPOSE:To aim at miniaturizing a speed reduction unit, by disposing, in an outer ring gear, a rotary planetary gear and an output shaft so that the input and output shafts are arranged coaxially. CONSTITUTION:A planetary rotary mechanism comprises a planetary gear 2 inscribed with an outer ring gear 1 and a planetary gear 3 inscribed with the planetary gear 2 and arranged coaxially with the outer ring gear 1. This outer ring gear 1 is stationary, and an output from the shaft of a motor or the like causes the planetary gear 2 attached onto a crank shaft 4 which is fitted onto the front end of a shaft passing through the center of the outer ring gear 1, to rotate planetarily.

Description

【発明の詳細な説明】 〔技術分野〕 この発明は小型モーターに適した減速機に関する。[Detailed description of the invention] 〔Technical field〕 The present invention relates to a speed reducer suitable for small motors.

〔背景技術〕[Background technology]

従来小型モーターの減速機構はギ丁−を並列配置する関
係上小型化しにくくモーター等に内臓しにくいものでめ
ったので、外部に大きな減速機を取付けるのが一般的で
あっｔｏ 〔発明の目的〕 この発明は小型モーターに適し、またモーター内臓にも
適した減速機全提供せんとするものである。Conventionally, reduction mechanisms for small motors have been difficult to miniaturize due to the arrangement of gears in parallel, making it difficult to incorporate them into the motor, etc., so it is common to attach a large reduction gear externally. The invention aims to provide a complete reduction gear suitable for small motors and also suitable for internal use in motors.

〔発明の開示〕[Disclosure of the invention]

この発明の要旨とするところは固定せる外輪ギアー■に
内接する遊星ギアー■の中心に入力軸を接続するクラン
ク軸■を配し、該遊星ギアー■に出力軸を外輪ギアー■
の軸心と同一軸上に配せる遊星ギアー■を内接して成る
ことを特徴とする減速機である。The gist of this invention is to arrange a crankshaft (■) that connects an input shaft to the center of a planetary gear (■) inscribed in a fixed outer ring gear (■), and to connect an output shaft to the planetary gear (■) to an outer ring gear (■).
This reduction gear is characterized by having a planetary gear (2) inscribed therein, which can be arranged on the same axis as the axis of the gear.

以下この発明全第１図乃至第５図ｒこ示す図示例に基づ
いて説明する。This invention will be explained below based on the illustrated examples shown in FIGS. 1 to 5.

第１図は遊星回転機構を利用した本発明の減速機の一実
施例である。遊星回転機構は固定した外輪ギアー■に内
接する遊星ギアー■、及び該遊星ギアー〇に内接し外輪
ギアー〇と同軸の遊星ギアー■とからなっている。ここ
で、外輪ギアー■は固定であり、モータ等の入力軸から
の出力は、外輪ギアー■の中央を挿通せる軸の先端に設
けられたクランク軸■に取付けられた遊星ギアー〇を遊
星回転させる。FIG. 1 shows an embodiment of the reduction gear of the present invention using a planetary rotation mechanism. The planetary rotation mechanism consists of a planet gear (2) inscribed in a fixed outer gear (2), and a planet gear (2) inscribed in the planet gear (2) and coaxial with the outer gear (2). Here, the outer gear ■ is fixed, and the output from the input shaft of a motor etc. planetarily rotates the planetary gear 〇 attached to the crankshaft ■ provided at the tip of the shaft that can be inserted through the center of the outer gear ■. .

外輪ギアー■と遊星ギアー■との歯数の差はそれぞれの
歯数に比べて小さな喧にしてｈ（。例えば外輪ギアー■
が５０枚、遊星ギアー■が４９枚という具合にである。The difference in the number of teeth between the outer ring gear ■ and the planetary gear ■ is smaller than the respective number of teeth (for example, the outer ring gear ■
There are 50 pieces of , and 49 pieces of Planetary Gear ■.

これに↓つで、遊星ギアー■は１回の遊星回転によって
、歯数の差だけ自転することになる、この自転は遊星ギ
アー■に伝えられ、遊星ギアー■の中央に取着さｎた出
力軸■に伝えられる。遊緘ギアー■の内側の歯数と遊星
ギ°Ｔ−■の歯数との関係は減速比とは特に関係しない
ので、適当な歯数を選ぶようにできる。第２図及び第３
図に外輪ギアー■と遊星ギアー■との関係金示す。第２
１ス及び第３図に示すように、外輪ギアー■の入点に内
接する遊星ギアー■のＡ１点は、当＞７１第２図の始く
同一位置において接していたものとすると、遊星ギアー
〇の一回転によすＡ１点は第３図の如くギアー数の差だ
けおくれだ位置にくる。而して遊星ギアー■が角速度ｗ
２で遊星回転した場合、外輪ギアー■の歯数をｚｌ、遊
星ギアー■の歯数ヲｚ２、遊星ギアー■の角速度ｅｗｚ
とするとき、歯数の差　□の減速比となり遊星ギアー■
０自転はｗ２＝”　＊１−とナル。第４図及び第５図に
遊星ギアー■と遊星ギアー■の関係を示す、当初遊星ギ
アー■のＢ点に遊星ギアー■の８１点は第４図の如くＢ
点に比して外輪ギアー■と遊星ギアー■の歯数の差分だ
けおくれた位置にぐる。而して遊星ギアー■は遊星ギア
ー〇の回りｔ角速度町で遊星回転し、）角速度ｗ１で自
転する。そして遊星ギアー■へは、遊星ギアー■の自転
のみが伝えられるので、出力軸Ｏの角速度はｗｌとなる
。In addition to this, the planetary gear ■ will rotate by the difference in the number of teeth due to one planetary rotation. This rotation is transmitted to the planetary gear ■, and the output is attached to the center of the planetary gear ■. It is transmitted to the axis ■. Since the relationship between the number of teeth inside the idler gear (2) and the number of teeth on the planetary gear (T-) is not particularly related to the reduction ratio, an appropriate number of teeth can be selected. Figures 2 and 3
The figure shows the relationship between the outer ring gear (■) and the planetary gear (■). Second
As shown in Figure 1 and Figure 3, point A1 of the planetary gear ■ which is inscribed in the entry point of the outer ring gear ■ is in contact with the entry point of the outer ring gear ■ at the same position at the beginning of Figure 2, then the planetary gear 〇 As shown in Figure 3, point A1, which corresponds to one revolution, is delayed by the difference in the number of gears. Therefore, the planetary gear ■ has an angular velocity w
2, the number of teeth on the outer gear ■ is zl, the number of teeth on the planetary gear ■ is z2, and the angular velocity of the planetary gear ■ is ewz.
When , the difference in the number of teeth becomes a reduction ratio of □, which results in a planetary gear ■
0 rotation is w2=” *1- and null. Figures 4 and 5 show the relationship between planetary gear ■ and planetary gear ■. Initially, point B of planetary gear ■ and point 81 of planetary gear ■ are shown in Figure 4. Like B
Move to a position that is behind the point by the difference in the number of teeth between the outer ring gear ■ and the planetary gear ■. Therefore, the planetary gear (2) planetarily rotates around the planetary gear (0) at an angular velocity of t, and rotates at an angular velocity of () w1. Since only the rotation of the planetary gear (2) is transmitted to the planetary gear (2), the angular velocity of the output shaft O is wl.

〔発明の効果〕〔Effect of the invention〕

以上のようにこの発明の減速機によれば、外輪ギアー内
に遊星回転ギアーと出力ギアーを配して入力軸と出力軸
は同軸上に配されているものであるから小型化され入力
軸をモーターの出力軸に直結して小型化することも容易
なのである。また遊星機接を採用していることにより減
速比も大きくとれるのである。As described above, according to the reduction gear of the present invention, the planetary rotating gear and the output gear are arranged in the outer ring gear, and the input shaft and the output shaft are arranged coaxially, so that the reduction gear is miniaturized and the input shaft can be It is also easy to downsize by connecting directly to the output shaft of the motor. Also, by using planetary contact, a large reduction ratio can be achieved.

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

第１図乃至第５図はその発明の一実施例を示す図で、第
１図は断面図、第２図及び第３図は外輪ギアー■と遊星
ギアー■との関係を示す子面図、第４図及び第５図は遊
星ギアー■と遊星ギアー■との関係と示す子面図である
。 １・・・外輪ギアー、２・・・遊星ギアー、３・・・遊
星ギアー１ 特許出願人 松下電工株式会社 代理人弁理士　竹　元　敏　丸 （ほか２名） 第１図 第２　ｃｉ　第３図 第４図　第５図1 to 5 are views showing one embodiment of the invention, in which FIG. 1 is a sectional view, FIGS. 2 and 3 are side views showing the relationship between outer ring gear (■) and planetary gear (■), FIGS. 4 and 5 are side views showing the relationship between the planetary gears (1) and (2). 1...Outer ring gear, 2...Planetary gear, 3...Planetary gear 1 Patent applicant Matsushita Electric Works Co., Ltd. Representative patent attorney Toshimaru Takemoto (and 2 others) Figure 1 Figure 2 ci Figure 3 Figure 4 Figure 5

Claims (1)

【特許請求の範囲】[Claims] （１）、固定せる外輪ギアー■に内接する遊星ギアー■
の中心に入力軸を接続するクランク軸■を配し、該遊星
ギアー■に、出力軸を外輪ギアー■の軸心と同一軸上に
配せる遊星ギアー■を内接して成ることを特徴とする減
速機。(1) Planetary gear inscribed in the outer ring gear to be fixed ■
A crankshaft (■) to which the input shaft is connected is arranged at the center of the gear (2), and a planetary gear (2) is inscribed in the planetary gear (2) to arrange the output shaft on the same axis as the axis of the outer ring gear (2). Decelerator.
JP3459284A 1984-02-23 1984-02-23 Speed reduction unit Pending JPS60179545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3459284A JPS60179545A (en) 1984-02-23 1984-02-23 Speed reduction unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3459284A JPS60179545A (en) 1984-02-23 1984-02-23 Speed reduction unit

Publications (1)

Publication Number Publication Date
JPS60179545A true JPS60179545A (en) 1985-09-13

Family

ID=12418596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3459284A Pending JPS60179545A (en) 1984-02-23 1984-02-23 Speed reduction unit

Country Status (1)

Country Link
JP (1) JPS60179545A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6388351A (en) * 1986-09-27 1988-04-19 ル−カス　インダストリ−ズ　パブリック　リミティド　カンパニ− Differential gear device
EP0738841A2 (en) * 1995-04-20 1996-10-23 Tuois K.K. Speed reduction apparatus and method
JP2012026568A (en) * 2010-06-25 2012-02-09 Kamo Seiko Kk Roller type transmission device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6388351A (en) * 1986-09-27 1988-04-19 ル−カス　インダストリ−ズ　パブリック　リミティド　カンパニ− Differential gear device
EP0738841A2 (en) * 1995-04-20 1996-10-23 Tuois K.K. Speed reduction apparatus and method
EP0738841A3 (en) * 1995-04-20 1997-12-03 Tuois K.K. Speed reduction apparatus and method
JP2012026568A (en) * 2010-06-25 2012-02-09 Kamo Seiko Kk Roller type transmission device

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