JP3532984B2 - Planetary gear set - Google Patents

Planetary gear set

Info

Publication number
JP3532984B2
JP3532984B2 JP33255394A JP33255394A JP3532984B2 JP 3532984 B2 JP3532984 B2 JP 3532984B2 JP 33255394 A JP33255394 A JP 33255394A JP 33255394 A JP33255394 A JP 33255394A JP 3532984 B2 JP3532984 B2 JP 3532984B2
Authority
JP
Japan
Prior art keywords
gear
press
punched
planetary gear
plate
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 - Fee Related
Application number
JP33255394A
Other languages
Japanese (ja)
Other versions
JPH08166049A (en
Inventor
裕樹 石田
潤一 谷
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.)
Tsubakimoto Chain Co
Original Assignee
Tsubakimoto Chain Co
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 Tsubakimoto Chain Co filed Critical Tsubakimoto Chain Co
Priority to JP33255394A priority Critical patent/JP3532984B2/en
Publication of JPH08166049A publication Critical patent/JPH08166049A/en
Application granted granted Critical
Publication of JP3532984B2 publication Critical patent/JP3532984B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16H1/46—Systems consisting of a plurality of gear trains each with orbital gears, i.e. systems having three or more central gears

Landscapes

  • Retarders (AREA)
  • General Details Of Gearings (AREA)

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、プレス抜きされたプレ
ス抜き板の重ね合わせにより太陽歯車を形成するととも
に、廻り止め用の欠円部の半径方向外方に形成した位相
合わせ嵌合部の嵌合により、歯車部を位相合わせしうる
遊星歯車装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to form a sun gear by superposing pressed punched plates and to form a phase-matching fitting portion formed radially outward of a detent circle for preventing rotation. The present invention relates to a planetary gear device capable of aligning phases of gear parts by fitting.

【０００２】[0002]

【従来の技術】太陽歯車、内歯車、およびキャリヤに回
転支持される遊星歯車を用いる内歯車形式の遊星歯車装
置は周知であり、減速、増速のための変速機構として多
用されている。2. Description of the Related Art An internal gear type planetary gear device using a sun gear, an internal gear, and a planetary gear that is rotatably supported by a carrier is well known and is often used as a speed change mechanism for deceleration and acceleration.

【０００３】しかし遊星歯車装置に用いる前記内歯車
は、太陽歯車の周囲を転動する遊星歯車のピッチ円の外
縁軌跡と等しいピッチ円径を具えているために、他の歯
車に比して大型となり、しかも加工困難な内歯車である
ために、遊星歯車装置全体のコストを上昇させる一つの
原因となっている。特に高い増減速比をうるために、複
数の遊星変速段を用いるときには、その段数ごとに内歯
車が必要となり、装置コストが増大する。However, since the internal gear used in the planetary gear device has a pitch circle diameter equal to the outer edge locus of the pitch circle of the planet gear rolling around the sun gear, it is larger than other gears. In addition, since the internal gear is difficult to machine, it is one of the causes for increasing the cost of the entire planetary gear device. In order to obtain a particularly high acceleration / deceleration ratio, when using a plurality of planetary gears, an internal gear is required for each number of gears, which increases the device cost.

【０００４】なお、遊星歯車装置には、０．２Ｋｗ以下
程度の小型のものも多く、特に小容量のものにおいて
は、従来の構造の概念を越えて低価格化、小型化するこ
とが望まれている。Many of the planetary gear devices are small, about 0.2 Kw or less, and especially for small-capacity devices, it is desired to reduce the price and size of the device beyond the concept of the conventional structure. ing.

【０００５】そのため、本発明者らは、特願平６ー２４
２２６５号などによって、内歯車に、プレス抜きにより
内歯部を成形したプレス抜き板の打抜き積層体を用いる
ことを基本として、比較的安価かつ高い精度の内歯車を
有する遊星歯車装置を提案した。Therefore, the present inventors have filed Japanese Patent Application No. 6-24.
No. 2265 proposed a planetary gear unit having a relatively inexpensive and highly accurate internal gear, based on the use of a punched laminated body of a punched plate having internal teeth formed by press punching as the internal gear.

【０００６】[0006]

【発明が解決しようとする課題】他方、小容量の変速装
置においては、さらなる低価格化が望まれるところであ
り、本発明者らは、このような打抜き積層体を用いると
いう内歯車についてのアイデアを、太陽歯車にも採用す
ることを着想した。On the other hand, in a small-capacity transmission, further cost reduction is desired, and the inventors of the present invention have proposed an idea of an internal gear that uses such a punched laminated body. I also thought of using it for the sun gear.

【０００７】しかしながら、特に入力軸に採用される太
陽歯車は、他の歯車に比して小型であってそれが取りつ
く軸体も小径であり、従って、かかる打抜き積層体を用
いるとき、位相合わせのために特願平６ー２４２２６５
号などで採用する位相合わせ嵌合部を用いることは、部
品が小型であるためにその形成は困難となる。However, the sun gear particularly used for the input shaft is smaller than the other gears, and the shaft body to which it is attached has a small diameter. Therefore, when such a punched laminate is used, the phase alignment is performed. For Japanese Patent Application No. 6-242265
It is difficult to use the phase matching fitting portion adopted in the No. etc. because the component is small.

【０００８】従って、本発明者らが種々検討した結果、
軸体に、軸方向に先端まで続く連続する切欠き部を形成
する歯車取付部分を形成し、プレス抜き板には、前記軸
体の前記切欠き部に一致する欠円部を有し歯車取付部分
の断面形状と等しい形状の非円形の中心孔を設けること
により、廻り止めするとともに、欠円部と歯底円との間
の距離を増して位相合わせ嵌合部を形成しうる面積を増
大することを案出し、本発明を完成した。Therefore, as a result of various studies by the present inventors,
The shaft body is formed with a gear mounting portion that forms a continuous notch portion that continues to the tip in the axial direction, and the press punched plate has a notched circular portion that matches the notch portion of the shaft body. By providing a non-circular center hole with the same shape as the cross-sectional shape of the part, it prevents rotation and increases the distance between the missing circle and the root circle to increase the area where the phase matching fitting part can be formed. The present invention has been completed.

【０００９】本発明は、軸体の切欠き部に合う廻り止め
用の欠円部の半径方向外側に位相合わせ嵌合部を形成す
ることを基本とし、その嵌合により歯車部を位相合わせ
でき、かつ加工を容易として前記課題を解決しうる遊星
歯車装置の提供を目的としている。The present invention is based on the fact that a phase matching fitting portion is formed on the outer side in the radial direction of a detent circle portion for preventing rotation that fits into the notch portion of the shaft body, and the gear portion can be phase matched by the fitting. It is also an object of the present invention to provide a planetary gear device that can be easily processed and can solve the above problems.

【００１０】[0010]

【課題を解決するための手段】本発明は、遊星歯車装置
であって、太陽歯車は、外歯部をプレス抜きされたリン
グ状のプレス抜き板を積層した打抜き積層体と、この打
抜き積層体を支持する軸体からなるとともに、前記軸体
は、軸方向に先端まで続く連続する切欠き部を形成する
歯車取付部分を具え、かつ前記プレス抜き板には、前記
外歯部、前記軸体の前記切欠き部に一致する欠円部を有
し歯車取付部分の断面形状と等しい形状の非円形の中心
孔、及び該プレス抜き板の一面に設けた凸部と、他面の
凹部とからなりしかも凸部と凹部との嵌合によって重な
るプレス抜き板が位相合わせされる位相合わせ嵌合部を
形成するとともに、前記位相合わせ嵌合部は、前記欠円
部の半径方向外方に設けられたことを特徴とする遊星歯
車装置である。DISCLOSURE OF THE INVENTION The present invention is a planetary gear device in which a sun gear has a punched laminated body formed by laminating ring-shaped press-punched plates whose outer teeth are punched, and the punched laminated body. The shaft body is provided with a gear mounting portion that forms a continuous notch portion that continues to the tip in the axial direction, and the press punch plate includes the external tooth portion and the shaft body. From a non-circular center hole having a cutout portion corresponding to the cutout portion and having a shape equal to the cross-sectional shape of the gear mounting portion, and a convex portion provided on one surface of the press punched plate and a concave portion on the other surface. In addition, a press punching plate that overlaps by fitting the convex portion and the concave portion together forms a phase matching fitting portion, and the phase matching fitting portion is provided radially outward of the missing circle portion. It is a planetary gear device characterized by the above.

【００１１】又請求項２の発明は、前記軸体が、基部
と、この基部に連なる前記歯車取付部分とを具え、かつ
基部と歯車取付部分との間に陥没部を有する段差面を形
成するとともに、前記打抜き積層体の入力側の外面に位
置するプレス打抜き板の前記凸部を、前記段差面の陥没
部に嵌入することを特徴とする。According to a second aspect of the present invention, the shaft body has a base portion and the gear mounting portion connected to the base portion, and forms a step surface having a recessed portion between the base portion and the gear mounting portion. At the same time, the convex portion of the press-punched plate located on the input-side outer surface of the punched laminate is fitted into the recessed portion of the step surface.

【００１２】さらに請求項３の発明は、前記プレス抜き
板の位相合わせ嵌合部の凸部と凹部とは、プレスの半抜
きにより両面の同じ位置に形成されかつその嵌合によっ
て重なり合うプレス抜き板を互いに結合しうることを特
徴とし、かつ請求項４の発明は前記プレス抜きは、フア
インブランキング加工であることを特徴としている。[0012] According to a third aspect of the present invention, in the press punched plate, the convex portion and the concave portion of the phase matching fitting portion of the press punched plate are formed at the same position on both sides by half punching of the press and overlap by the fitting. Can be connected to each other, and the invention of claim 4 is characterized in that the press punching is a fine blanking process.

【００１３】[0013]

【作用】太陽歯車は、プレス抜きされた外歯部を有する
プレス抜き板の打抜き積層体と、それを取りつける軸体
とからなり、生産が能率化でき安価となしうる他、品質
が安定する。さらに必要な強さに応じて積重ね枚数を変
更し歯車の強度をも調整しうる。The sun gear is composed of a punched laminated body of press-punched plates having a punched outer tooth portion and a shaft body to which the punched laminated plate is attached, which enables efficient production, low cost, and stable quality. Further, the strength of the gear can be adjusted by changing the number of stacked sheets according to the required strength.

【００１４】太陽歯車は、打抜き積層体の前記プレス抜
き板が、前記軸体の切欠き部に一致する欠円部を有し歯
車取付部分の断面形状と等しい形状の非円形の中心孔に
より、前記軸体の歯車取付部分に嵌着するため、太陽歯
車の廻り止めが容易、かつ強固となる。In the sun gear, the press punched plate of the punched laminated body has a non-circular center hole having a cutout portion corresponding to the cutout portion of the shaft body and having a shape equal to the cross-sectional shape of the gear mounting portion, Since it is fitted to the gear mounting portion of the shaft body, the sun gear can be easily and firmly prevented from rotating.

【００１５】又、前記プレス抜き板の一面に設けた凸部
と、他面の凹部とからなる位相合わせ嵌合部は，前記凸
部と凹部との嵌合によって重なり合うプレス抜き板が位
相合わせでき、しかも前記位相合わせ嵌合部は、前記欠
円部の半径方向外方向の部分、即ち欠円部によって面積
を増した領域に設けているため、位相合わせ嵌合部の形
成が容易となり、かつ比較的大きい位相合わせ嵌合部の
形成が可能となるため、位相合わせ精度を高めるととも
に、嵌合を締まり嵌めとしたときには結合強さを向上で
きる。Further, the phase matching fitting portion consisting of the convex portion provided on one surface of the press punching plate and the concave portion on the other surface allows the press punching plates which are overlapped by the fitting of the convex portion and the concave portion to be phase matched. Moreover, since the phase-matching fitting portion is provided in the radially outward portion of the truncated circle portion, that is, in the region of which the area is increased by the broken circle portion, the phase-matching fitting portion can be easily formed, and Since it is possible to form a relatively large phase-matching fitting portion, it is possible to improve the phase-matching accuracy and improve the coupling strength when the fitting is a tight fit.

【００１６】さらに、プレス抜きでは、そのプレス抜き
板には、図４に一点鎖線で示すように、ブランクの雌型
への打込みに際して外縁が円弧にぬすみ状に変形するぬ
きだれｍが生じやすい。このようなぬきだれｍは、プレ
ス抜き板が重なることによって隣り合うプレス抜き板と
の間に小さな凹部を形成し、この凹部が潤滑油、グリー
ス溜りとなって潤滑材の持ちを良好とし、歯車の耐久性
の向上に役立つこともできる。Further, in the press punching, as shown by the alternate long and short dash line in FIG. 4, the press punching plate is apt to have a weed m whose outer edge is deformed into a circular arc when the blank is driven into the female die. Such a blank m forms a small recess between adjacent press-punched plates due to the press-punched plates overlapping with each other, and these recesses serve as lubricating oil and a grease reservoir to improve the retention of the lubricant. It can also help improve the durability of the.

【００１７】又請求項２の発明のように、前記軸体が、
基部と、この基部に連なる前記歯車取付部分との間に、
陥没部を有する段差面を形成するとともに、前記打抜き
積層体の入力側のプレス打抜き板の外面に位置する前記
凸部を、前記段差面の陥没部に嵌入することにより、さ
らに廻り止め強さとともに軸体への取付け強度を向上し
うる。According to a second aspect of the present invention, the shaft body is
Between the base and the gear mounting portion connected to the base,
By forming a stepped surface having a recessed portion and fitting the convex portion located on the outer surface of the press punching plate on the input side of the punched laminate into the recessed portion of the stepped surface, with further rotation prevention strength The mounting strength on the shaft can be improved.

【００１８】また請求項３の発明においては、前記プレ
ス抜き板の凸部と凹部とは、プレスの半抜きにより両面
の同じ位置に形成しているため加工能率を高め、かつ結
合させるとともに、請求項４の発明のようにプレス抜き
としてフアインブランキング加工を採用することによ
り、歯部を含めて太陽歯車精度を大幅に向上し、歯当た
りを良好とするなど、製品寿命の増大をもなしうる。Further, in the invention of claim 3, since the convex portion and the concave portion of the press punched plate are formed at the same position on both surfaces by half-pressing of the press, the working efficiency is improved and they are joined together. By adopting the fine blanking process as the press removal as in the invention of Item 4, the accuracy of the sun gear including the tooth portion is significantly improved, the tooth contact is improved, and the product life can be extended. .

【００１９】[0019]

【実施例】以下本発明の一実施例を図面に基づき説明す
る。図１〜７において遊星歯車装置１は、太陽歯車２
と、内歯車３と、キャリヤ４に遊星歯車５を回転自在か
つ一体に組み込んだ遊星キャリヤ体６とからなる１段以
上の遊星変速段Ｕをハウジング部材７に組み立ててお
り、かつ本実施例では電動機Ｍを有するフランジ形式の
ギヤーモートルとして形成される。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 7, the planetary gear device 1 includes a sun gear 2
And one or more planetary gear stages U composed of the internal gear 3 and the planetary carrier body 6 in which the planetary gear 5 is rotatably and integrally incorporated in the carrier 4, are assembled in the housing member 7, and in the present embodiment, It is formed as a flange type gear motor with an electric motor M.

【００２０】なお本例では、遊星変速段Ｕは、入力側、
出力側の２段の遊星変速段Ｕｉ、Ｕｏ（ｉ，ｏは入力
側、出力側を区別するときに要すれば用いる。以下同
じ）を具えている。In this example, the planetary gear stage U is connected to the input side,
Two planetary gear stages Ui and Uo on the output side (i and o are used if necessary when distinguishing the input side and the output side; the same applies hereinafter) are provided.

【００２１】入力側の遊星変速段Ｕｉは、前記電動機Ｍ
のロータ軸、即ち遊星歯車装置１の入力用の軸体１１先
端の太陽歯車２ｉと、この太陽歯車２ｉを囲む内歯車３
ｉと、結合軸２１…、支持軸２２…により結合される２
枚のキャリヤ４ｉＡ，４ｉＢ間の複数の前記支持軸２２
に遊星歯車５ｉ…を枢支してなる遊星キャリア体６ｉと
によって構成される。The planetary gear stage Ui on the input side is connected to the electric motor M.
Rotor shaft, that is, the sun gear 2i at the tip of the input shaft 11 of the planetary gear device 1, and the internal gear 3 that surrounds the sun gear 2i.
2 connected to i by a connecting shaft 21 ..., A supporting shaft 22 ...
A plurality of the support shafts 22 between the carriers 4iA and 4iB.
, And a planet carrier body 6i in which the planetary gears 5i are pivotally supported.

【００２２】さらに出力側の遊星変速段Ｕｏは、前記入
力側の遊星変速段Ｕｉのキャリヤ４ｉＢの中心に固定さ
れる太陽歯車２ｏと、この太陽歯車２ｏを囲む内歯車３
ｏと、２枚のキャリヤ４ｏＡ，４ｏＢ間に同様に遊星歯
車５ｏ…を回転自在に支持させた遊星キャリア体６ｏと
から構成され、かつ出力側の前記キャリヤ４ｏＢは出力
軸１２の後部に固定されている。Further, the planetary gear stage Uo on the output side has a sun gear 2o fixed to the center of a carrier 4iB of the planetary gear stage Ui on the input side, and an internal gear 3 surrounding the sun gear 2o.
o and a planet carrier body 6o which similarly rotatably supports a planet gear 5o between the two carriers 4oA and 4oB, and the carrier 4oB on the output side is fixed to the rear portion of the output shaft 12. ing.

【００２３】前記入力側の太陽歯車２ｉは、前記軸体１
１と、この軸体１１の歯車取付部分１１Ｂに取付けられ
金属板をプレス抜きされたプレス抜き板８が積層された
打抜き積層体８Ｕとを用いている。なお出力側の遊星変
速段Ｕｏの太陽歯車２ｏは、歯切り品を用いることも、
一体成形品とすることも、図１２に示すごとく、前記入
力側の太陽歯車２ｉと同様なプレス抜き板８ｏが積層さ
れた打抜き積層体８Ｕｏを用いることができる。The sun gear 2i on the input side is the shaft 1
1 and a punched laminated body 8U in which a punched plate 8 which is attached to the gear mounting portion 11B of the shaft body 11 and which is obtained by pressing a metal plate is laminated. It should be noted that the sun gear 2o of the planetary gear stage Uo on the output side may be a geared product
As an integrally molded product, as shown in FIG. 12, it is possible to use a punching laminated body 8Uo in which press punched plates 8o similar to the input side sun gear 2i are laminated.

【００２４】又、内歯車３ｉ，内歯車３ｏも、本例で
は、ともにプレス抜きされたプレス抜き板９を積層した
打抜き積層体９Ｕが用いられ、しかも本例では、この打
抜き積層体９Ｕは、内歯車３ｉ，内歯車３ｏを一連に遊
星歯車５と噛合しない中間部分も連続させる一体の内歯
車３ｚとして形成されるとともに、この打抜き積層体９
Ｕによって、遊星歯車装置１のハウジング部材７の一部
が構成されている。Further, as the internal gear 3i and the internal gear 3o, in the present example, a punching laminated body 9U in which press punched plates 9 which are both punched is laminated is used, and in this example, the punching laminated body 9U is The internal gear 3i and the internal gear 3o are formed as an integrated internal gear 3z that connects a series of intermediate portions that do not mesh with the planetary gear 5 in series, and this punched laminated body 9
U constitutes a part of the housing member 7 of the planetary gear device 1.

【００２５】又各歯車の歯部を囲む前記ハウジング部材
７は、本例では、前記電動機ＭのモータハウジングＨｍ
を通しボルトＨｂにより固定する入力側のブラケットＢ
１と、内歯車３をなす前記打抜き積層体９Ｕと、出力側
のブラケットＢ２とにより形成される。The housing member 7 surrounding the tooth portion of each gear is, in this example, the motor housing Hm of the electric motor M.
Bracket B on the input side that secures with through bolt Hb
1, the punched laminated body 9U forming the internal gear 3, and the bracket B2 on the output side.

【００２６】前記入力側のブラケットＢ１はモータハウ
ジングＨｍの前端と嵌合するとともに、その軸受ｂ１
と、モータハウジングＨｍの後壁の軸受ｂ２とによって
ロータ軸、即ち入力側の太陽歯車２ｉを形成する入力軸
である軸体１１を支持している。又該入力側のブラケッ
トＢ１は、例えば角形をなすことによって、モータハウ
ジングＨｍの外周面から半径方向に突出した透孔２６Ａ
を有する４つの突出部を具える。The bracket B1 on the input side is fitted with the front end of the motor housing Hm, and its bearing b1.
And the bearing b2 on the rear wall of the motor housing Hm support the rotor shaft, that is, the shaft body 11 that is the input shaft forming the input-side sun gear 2i. Further, the bracket B1 on the input side is formed in, for example, a square shape, so that the through hole 26A protruding in the radial direction from the outer peripheral surface of the motor housing Hm.
With four protrusions.

【００２７】さらに、出力側のブラケットＢ２は、４隅
に、前記透孔２６Ａと同心な取付用の孔部２６Ｂ、本例
ではネジ穴を有する角形の外筒部２８と、これに同心で
あって出力軸１２を軸受ｂ３、ｂ４により支持する内筒
部２９とを一体に設けている。なおハウジング部材７
は、入力側のブラケットＢ１の前記透孔２６Ａから内歯
車３ｚの外周面外方を通り、出力側のブラケットＢ２の
孔部２６Ｂに螺入されるボルト３０により一体化され
る。又ボルト３０の胴部は短寸であることによって、出
力側の前面には、前記孔部２６Ｂがなす取付用のネジ穴
が形成される。なおバカ穴を有し半径方向外方にのびる
突起（図示せず）を別設するのもよい。又軸体１１、出
力軸１２はシールＳ１、Ｓ２によって軸封されている。Further, the bracket B2 on the output side is provided with mounting holes 26B concentric with the through holes 26A at four corners, and in this example, a rectangular outer cylinder 28 having a screw hole and concentric therewith. And an inner cylinder portion 29 that supports the output shaft 12 with bearings b3 and b4. The housing member 7
Are integrated by bolts 30 that pass from the through holes 26A of the bracket B1 on the input side to the outside of the outer peripheral surface of the internal gear 3z and are screwed into the holes 26B of the bracket B2 on the output side. Further, since the body of the bolt 30 is short, a screw hole for mounting formed by the hole 26B is formed on the front surface on the output side. It is also possible to separately provide a protrusion (not shown) having a stupid hole and extending outward in the radial direction. The shaft 11 and the output shaft 12 are sealed by seals S1 and S2.

【００２８】前記のごとく、前記入力側の遊星変速段Ｕ
ｉの太陽歯車２ｉは、前記軸体１１と、前記打抜き積層
体８Ｕとから構成され、この打抜き積層体８Ｕは、金属
板をプレス抜きされたプレス抜き板８を積層することに
より形成される。As described above, the planetary gear stage U on the input side is used.
The sun gear 2i of i is composed of the shaft body 11 and the punched laminated body 8U, and this punched laminated body 8U is formed by laminating the press punched plates 8 obtained by punching a metal plate.

【００２９】前記軸体１１は、本例ではロータ軸であっ
て、図７、図８に拡大して示すように、ロータ部分から
のびる基部１１Ａと、この基部１１Ａに連なりかつ軸方
向に先端まで続く連続した平面からなる切欠き部１４を
形成する歯車取付部分１１Ｂとからなる。また基部１１
Ａと歯車取付部分１１Ｂとの間には軸方向と直角な段差
面１１Ｃが形成されかつこの段差面１１Ｃには、前記切
欠き部１４の周方向中心から半径方向外方の位置におい
て、本例では円穴からなる陥没部１１Ｄが設けられる。The shaft body 11 is a rotor shaft in this example, and as shown in an enlarged view in FIGS. 7 and 8, a base portion 11A extending from the rotor portion and a base portion 11A which is continuous with the base portion 11A and extends axially to the tip. And a gear mounting portion 11B that forms a notch 14 having a continuous plane. Also the base 11
A step surface 11C perpendicular to the axial direction is formed between A and the gear mounting portion 11B, and in this step surface 11C, at a position radially outward from the circumferential center of the cutout portion 14, the present example is provided. In, a depression 11D formed of a circular hole is provided.

【００３０】この切欠き部１４は、平面の他、曲面、折
り曲げ面により切り欠くことによって形成してもよく、
また歯車取付部分１１Ｂは、図７に示すごとく、１つの
切欠き部１４を設けた断面Ｄ型とすることも、図８に示
すように、両側に２つの平行な切欠き部１４、１４を設
けた長円状とすることも、より以上の個数の切欠き部を
設けた、例えばおむすび状断面とすることもできる。な
お先端部に歯車抜止め用の止め輪溝１１Ｅなどを設ける
のもよい。The notch 14 may be formed by notching a curved surface or a bent surface in addition to a flat surface.
Further, the gear mounting portion 11B may have a D-shaped cross section provided with one notch 14 as shown in FIG. 7, or two parallel notches 14, 14 on both sides as shown in FIG. The shape may be an elliptical shape provided, or may be, for example, a diaper-shaped cross section having a greater number of notches. A retaining ring groove 11E for retaining the gear may be provided at the tip.

【００３１】さらに前記陥没部１１Ｄも、円穴、非円穴
などの凹状穴の他、図８に示すように、切欠き部１４か
ら半径方向に外周面までのびるＵ字溝、角溝からなる溝
状とすることもできる。又段差面１１Ｃには１つの陥没
部１１Ｄを形成することも、各切欠き部１４毎にそれぞ
れ陥没部１１Ｄを形成することも可能である。Further, the recessed portion 11D also comprises a concave hole such as a circular hole or a non-circular hole, and as shown in FIG. 8, a U-shaped groove or a square groove extending from the notch 14 to the outer peripheral surface in the radial direction. It can also be grooved. Further, it is possible to form one depression 11D on the step surface 11C or to form each depression 11D for each notch 14.

【００３２】前記太陽歯車２ｉをなす前記打抜き積層体
８Ｕは、外歯部をプレス抜きされたプレス抜き板８を積
層している。このプレス抜き板８は、金属板を、ファイ
ンブランキング加工によりプレス抜きすることによって
形成される。このプレス抜き板８は、図５、図６に示す
ように、外歯部２Ａを有しその歯先円となる外周面８ａ
と、中心孔８ｂとを同心に打抜きにより形成した小径の
リング状をなし、又プレス抜き板８には、一面に設けた
凹部１５Ａ、この凹部１５Ａに嵌め合いできかつ他面に
設けた凸部１５Ｂとからなる位相合わせ嵌合部１５を形
成している。The punched laminated body 8U forming the sun gear 2i is formed by laminating press punched plates 8 whose outer teeth are punched. The press punched plate 8 is formed by punching a metal plate by fine blanking. As shown in FIGS. 5 and 6, the press punching plate 8 has an outer peripheral surface 8a having an outer tooth portion 2A and forming a tip circle thereof.
And a central hole 8b are concentrically formed by punching to form a small-diameter ring, and the press-punching plate 8 has a recess 15A provided on one surface, and a projection provided on the other surface that can be fitted into the recess 15A. 15B and the phase matching fitting part 15 are formed.

【００３３】なおファインブランキング加工とは、周知
のように、１９２３年にスイス人フリッツ シセス（Fr
itz Schicess）氏が提案し、板押えと逆押えとを具え、
極めて小のクリアランスのパンチ・ダイを用いて板材に
圧縮力を作用させて延性を高めることにより割れによる
破断面の発生を抑制したプレス方法であり、金属板が薄
板とするとき、とくに切断面が美麗かつ高精度であるこ
とに着目して、薄板のプレス抜き板８…を重ねて打抜き
積層体とすることにより安価かつ使用に耐える精度の歯
車を製造しうることを見出した。前記金属板の板厚は
１．５〜３、５mm程度、本例では１．６〜２．８mm程度
とし、かつクロムモリブデン鋼など、強度、靭性に優れ
る各種の合金鋼からなる板材が好適に採用されうる。As is well known, the fine blanking process is performed in 1923 by the Swiss Fritz system (Fr
itz Schicess) proposed, with a plate presser and a reverse presser,
It is a pressing method that suppresses the generation of fracture surface due to cracking by applying compressive force to the plate material with a very small clearance to increase the ductility, and when the metal plate is a thin plate, especially the cut surface is Focusing on its beautifulness and high precision, it has been found that a gear having a low cost and a precision that can be used can be manufactured by stacking thin press punched plates 8 ... to form a punched laminated body. The plate thickness of the metal plate is about 1.5 to 3, 5 mm, in this example about 1.6 to 2.8 mm, and plate materials made of various alloy steels having excellent strength and toughness such as chrome molybdenum steel are suitable. Can be adopted.

【００３４】なお、モジュールは０．５〜１．２５程度
であって、板厚が小さくなるに従い打抜き精度も向上す
るため、小さいモジュールの打抜きが可能となる。なお
板厚２．５mm程度のとき０．７モジュール程度が可能で
あることを確かめている。さらに打抜き後、歪取り処理
を行うこともでき、または液浸、窒化、タフトライドな
どの適宜の表面、歯部の硬化処理を行うのもよく、その
とき可能な限り低温短時間での処理とするなど歪を生成
しないものがよい。The module is about 0.5 to 1.25, and the punching accuracy is improved as the plate thickness is reduced, so that the small module can be punched. It has been confirmed that about 0.7 module is possible when the plate thickness is about 2.5 mm. Further, after punching, it is possible to carry out strain relief processing, or it is also possible to carry out hardening treatment of appropriate surfaces such as liquid immersion, nitriding, tufftride, and teeth, and at that time, the treatment should be carried out at the lowest temperature and in the shortest possible time It is better that it does not generate distortion.

【００３５】前記中心孔８ｂは、前記軸体１１の前記切
欠き部１４に一致する形状の欠円部１６を有し、前記歯
車取付部分１１Ｂの断面形状と等しく、かつ止まり嵌
め、乃至好ましくは、この歯車取付部分１１Ｂに嵌着し
うる程度の締まり嵌め交差とした打ち抜き孔とすること
により、前記打抜き積層体８Ｕは、前記歯車取付部分１
１Ｂへの取付とともに保持されかつ廻り止めされる。The center hole 8b has a cutout portion 16 having a shape corresponding to the cutout portion 14 of the shaft body 11, has the same sectional shape as that of the gear mounting portion 11B, and is a stop fit, or preferably. The punching laminated body 8U has the punching laminated body 8U with the gear fitting portion 1B by forming the punching hole so as to have an interference fit enough to fit the gear fitting portion 11B.
It is held and prevented from rotating with mounting to 1B.

【００３６】また、前記位相合わせ嵌合部１５を構成す
る前記凹部１５Ａと、凸部１５Ｂとは、この欠円部１６
の半径方向外方に、しかも外歯部２Ａの歯底円よりも半
径方向内側の領域に形成される。この領域は、前記中心
孔８ａと、前記歯底円との間の距離が大きい部分となる
ため、比較的容易に、かつできるだけ大きい前記位相合
わせ嵌合部１５を形成しうることとなる。Further, the concave portion 15A and the convex portion 15B constituting the phase matching fitting portion 15 are formed by the missing circle portion 16
Of the outer tooth portion 2 </ b> A in the radial direction and radially inward of the root circle of the outer tooth portion 2 </ b> A. Since this region is a portion where the distance between the center hole 8a and the root circle is large, it is possible to relatively easily form the phase matching fitting portion 15 as large as possible.

【００３７】さらに、凹部１５Ａと凸部１５Ｂとは表裏
で同位置、同形であり、プレスの半抜きによって形成さ
れている。その結果、凸部１５Ｂ，凹部１５Ａは、外歯
部２Ａの位相に対しては、常に一定位置でしか嵌合しな
いこととなり、手作業、又は機械的な自動組立てを容易
とし、嵌合誤りをなくすとともに、中心孔８ａととも
に、プレス抜き板８を同芯で重ねることを確実にする。
なお半抜きとは、凸部１５Ｂが抜け落ちしない程度の深
さをいい、例えば板厚の１／３〜２／３倍程度とする。Further, the concave portion 15A and the convex portion 15B have the same position and shape on the front and back sides and are formed by half blanking of a press. As a result, the convex portion 15B and the concave portion 15A are always fitted only at a fixed position with respect to the phase of the external tooth portion 2A, facilitating manual work or mechanical automatic assembly, and making a fitting error. At the same time, it is ensured that the press punched plate 8 is concentrically overlapped with the central hole 8a.
The half blank means a depth such that the convex portion 15B does not fall off, and is, for example, about 1/3 to 2/3 times the plate thickness.

【００３８】また、凹部１５Ａと凸部１５Ｂとの嵌合に
より、重なり合うプレス抜き板８、８の結合強度を保持
させるべく、凹部１５Ａと凸部１５Ｂとの嵌合を、この
嵌合に際してコジレが生じない程度の締まり嵌めとする
のがよく、これにより打抜き積層体８Ｕを一体化する。Further, by fitting the concave portion 15A and the convex portion 15B, the concave portion 15A and the convex portion 15B are fitted with each other in order to maintain the bonding strength of the press punching plates 8, 8 which overlap each other. It is preferable to have an interference fit that does not occur so that the punched laminated body 8U is integrated.

【００３９】さらに、プレス抜き板８は、前記凹部１５
Ａを出力側に向けて積層され、これにより、凸部１５Ｂ
は入力側に向くとともに、最入力側のプレス抜き板８の
外面に形成される凸部１５Ｂを、前記軸体１１の段差面
１１Ｃに設けた陥没部１１Ｄに嵌合させる。この陥没部
１１Ｄは、前記凸部１５Ｂを嵌入できかつコジレが生じ
ない程度の締まり嵌めとする寸法に予め形成されてい
る。Further, the press punching plate 8 has the recess 15
A is stacked with the output side facing the output side, whereby the convex portion 15B is formed.
Is directed to the input side, and the convex portion 15B formed on the outer surface of the press punched plate 8 on the most input side is fitted into the recessed portion 11D provided on the stepped surface 11C of the shaft body 11. The recessed portion 11D is preliminarily formed in such a dimension that the protrusion 15B can be fitted therein and the fitting portion 15D is tightly fitted so as not to cause kinking.

【００４０】この陥没部１１Ｄと、前記凸部１５Ｂとの
嵌まり合いによって、打抜き積層体８Ｕの前記歯車取付
部分１１Ｂへの取付けとともに、凸部１５Ｂの剪断強さ
に半径を乗じたトルクを、廻り止めトルクに付加できる
こととなる。By fitting the recessed portion 11D and the convex portion 15B, the punching laminated body 8U is attached to the gear mounting portion 11B, and the shear strength of the convex portion 15B is multiplied by a radius torque. It can be added to the rotation stop torque.

【００４１】このように、太陽歯車２として、プレス抜
きされた打抜き積層体を用いているために、生産が能率
化でき安価となしうる他、品質が安定化する。さらにフ
アインブランイキング加工を採用することによって、高
精度に打抜きでき歯部精度を高め、しかも必要な強さに
応じて積重ね枚数を変更することにより、その強度をも
調整しうる。As described above, since the stamped laminated body is used as the sun gear 2, the production can be made efficient, the cost can be reduced, and the quality is stabilized. Further, by adopting fine blanch baking processing, it is possible to perform punching with high precision to improve the accuracy of the tooth portion, and further, the strength can be adjusted by changing the number of stacked sheets according to the required strength.

【００４２】又、プレス抜き板８は、図４に一点鎖線で
示すように、ブランクの雌型への打込みに際して生じる
僅かなぬきだれｍが、潤滑油、グリース溜りとなって潤
滑材の持ちを良好とし、歯車の耐久性を向上しうるとと
もに、位相合わせ嵌合部１５の嵌まり合いにより、位相
を合わせつつ、全体を廻り止めして一体化し周方向、半
径方向の結合強さを確保することもでき、さらに締め代
を有する締り嵌めとすることによって軸方向にも結合し
て一体化しうる。As shown by the alternate long and short dash line in FIG. 4, the press punched plate 8 has a slight amount of weep m generated when the blank is driven into the female mold, and becomes a lubricant oil or grease reservoir to hold the lubricant. Good, the durability of the gear can be improved, and due to the fitting of the phase matching fitting portion 15, the phases are matched and the whole is prevented from rotating to be integrated to ensure circumferential and radial coupling strength. It is also possible to combine and integrate in the axial direction by an interference fit having an interference.

【００４３】なお凹部、凸部は、隣合う面で嵌合できさ
えすれば、凸部、凹部は、所謂円形の他、四角形などの
非円形状など種々な形状を採用しうる。As long as the recesses and the projections can be fitted to the adjacent surfaces, the projections and the recesses can have various shapes such as a so-called circular shape and a non-circular shape such as a quadrangle.

【００４４】前記したように、内歯車３ｉ、３ｏもプレ
ス抜き板９の打抜き積層体９Ｕからなり、このプレス抜
き板９は、ファインブランキング加工によりプレス抜き
することによって形成される。このプレス抜き板９は、
本例では図９、図１０に示すように、内歯部３Ａを有し
その歯先円となる内周面９ａと、外周面９ｂとを同心に
打抜きにより形成したリング状をなす。又プレス抜き板
９には、位相合わせ嵌合部１０をなす一面の凹部１０Ａ
と、この凹部１０Ａに嵌め合いできかつ他面に設けた凸
部１０Ｂを形成している。As described above, the internal gears 3i, 3o also consist of the punched laminated body 9U of the press punched plate 9, and this press punched plate 9 is formed by punching by fine blanking. This press blank 9
In this example, as shown in FIGS. 9 and 10, an inner peripheral surface 9a having an inner tooth portion 3A and forming an addendum circle and an outer peripheral surface 9b are concentrically formed into a ring shape. Further, the press punching plate 9 has a recess 10A on one surface forming the phase matching fitting portion 10.
And a convex portion 10B which can be fitted in the concave portion 10A and which is provided on the other surface is formed.

【００４５】さらに、このプレス抜き板９の前記位相合
わせ嵌合部１０の前記凹部１０Ａと、凸部１０Ｂとは、
表裏で同位置とすることにより、プレス抜き板９の内歯
部３Ａ…の歯すじを軸方向に正しく位相を整一させて位
相合わせすることが容易となる。なお凹部１０Ａと凸部
１０Ｂとの嵌合により、重なり合うプレス抜き板９、
９、従って打抜き積層体９Ｕの結合強度を保持させるべ
く、好ましくは凹部１０Ａと凸部１０Ｂとの嵌合を、こ
の嵌着に際してコジレが生じない程度の締まり嵌めとす
る。Further, the concave portion 10A and the convex portion 10B of the phase matching fitting portion 10 of the press punched plate 9 are
By setting the positions to be the same on the front and back sides, it becomes easy to correctly align the phases of the tooth traces of the internal tooth portions 3A of the press punched plate 9 in the axial direction and to perform phase matching. It should be noted that the press punched plates 9 which are overlapped with each other by fitting the recesses 10A and the protrusions 10B,
9. Therefore, in order to maintain the bonding strength of the punched laminated body 9U, the recess 10A and the protrusion 10B are preferably fitted to each other with an interference fit to the extent that no kinking occurs during this fitting.

【００４６】又本例では、前記のように、内歯車３ｉ，
３ｏは、本例では、単にスペーサとして機能する３枚の
前記プレス抜き板９を介して一連とした一体な打抜き積
層体９Ｕからなる内歯車３ｚとして形成される。In this example, as described above, the internal gears 3i,
In the present example, 3o is formed as an internal gear 3z which is made up of a single punched laminated body 9U that is a series of the three punched plates 9 that function simply as spacers.

【００４７】さらに位相合わせ嵌合部１０は、半径方向
線を挟む角度が不等角（１つの角度のみが他の角度を異
なるのみでもよい）、例えば１５０°、１２０°、９０
°とする前記半径線上の３位置、又は１８０°とは異な
る（歯数が偶数のときは１８０°でもよい）２位置に設
けられる。その結果、凸部１０Ｂ，凹部１０Ａは、内歯
部３Ａの位相に対しては、常に一定位置でしか嵌合しな
いこととなり、手作業、又は機械的な自動組立てを容易
とし、嵌合誤りをなくす。Further, in the phase matching fitting portion 10, the angles sandwiching the radial lines are unequal angles (only one angle may differ from the other angles), for example, 150 °, 120 °, 90.
It is provided at three positions on the radius line which is set to be °, or at two positions different from 180 ° (or 180 ° when the number of teeth is an even number). As a result, the convex portion 10B and the concave portion 10A are always fitted only at a fixed position with respect to the phase of the inner tooth portion 3A, facilitating manual work or mechanical automatic assembly, and making a fitting error. lose.

【００４８】又、内歯車３は打抜き積層体９Ｕからなる
リング状をなすため、同厚さの一体品の場合と較べて半
径方向の剛性が低下することとなり、半径方向への可撓
性を高め、歯当たりの改善にも役立つ。又太陽歯車２と
同様に、ブランクの雌型への打込みに際して生じるぬき
だれｍ（図１１に示す）は、潤滑油、グリース溜りとな
って潤滑材の持ちを良好とし、内歯車３の耐久性を向上
しうる。Further, since the internal gear 3 has a ring shape made of the punched laminated body 9U, the rigidity in the radial direction is reduced as compared with the case of an integrated product having the same thickness, and the flexibility in the radial direction is reduced. It also helps improve tooth contact. Similarly to the sun gear 2, the weed m (shown in FIG. 11) generated when the blank is driven into the female mold serves as a lubricant oil and a grease reservoir to improve the durability of the internal gear 3. Can be improved.

【００４９】さらに図１、１１に示すごとく、打抜き積
層体９Ｕの入力方向で最も外側のプレス抜き板９の外面
の凹部１０Ａには、入力側のブラケットＢ１の向き合う
面に形成した凸部１０Ｃが嵌合する。又打抜き積層体９
Ｕの出力側で最も外側のプレス抜き板９の外面の凸部１
０Ｂは、第２のブラケットＢ２の向き合う面に形成した
凹部１０Ｄに嵌入させる。Further, as shown in FIGS. 1 and 11, in the recess 10A on the outer surface of the punching plate 9 on the outermost side in the input direction of the punching laminate 9U, the projection 10C formed on the facing surface of the bracket B1 on the input side is formed. Mating. Also punching laminated body 9
Convex portion 1 on the outer surface of the outermost press punching plate 9 on the output side of U
0B is fitted into the recess 10D formed in the facing surface of the second bracket B2.

【００５０】これにより、内歯車３、ブラケットＢ１，
Ｂ２は凹部１０Ａ、１０Ｄ、凸部１０Ｂ、１０Ｃが互い
に嵌合し、全体を廻り止めして一体化し、周方向、半径
方向の相対位置ずれを防止する。又凹部１０Ａ、１０
Ｄ、凸部１０Ｂ、１０Ｃを前記のように、締め代を有す
る締り嵌めとすることによって軸方向にも一体化させる
ことができる。なおブラケットＢ１、Ｂ２などの場合に
おいては全て凹部とし、この凹部に嵌着する位置合わせ
ピンＰ（図１１に一点鎖線で示す）を介して嵌着しても
よい。As a result, the internal gear 3, the bracket B1,
In B2, the concave portions 10A, 10D and the convex portions 10B, 10C are fitted to each other, and the whole is prevented from rotating to be integrated with each other to prevent relative positional displacement in the circumferential direction and the radial direction. Also, the recesses 10A, 10
As described above, the D and the convex portions 10B and 10C can be integrated in the axial direction by the interference fitting having the interference. In the case of the brackets B1, B2, etc., all of them may be recesses, and they may be fitted through the positioning pins P (shown by the one-dot chain line in FIG. 11) fitted in the recesses.

【００５１】なお、各プレス抜き板９の一方の面には、
図９に示すごとく、Ｖ字などの周方向にのびるシール取
付溝１７が中心廻りに周方向に設けられ、このシール取
付け溝１７に、本例ではＯリングである例えばゴム（耐
油ゴム）からなるシール材１８（図１１に示す）を夫々
配することにより、重ね合わされるプレス抜き板９、９
間を油密にシールし油漏れの防止とともに、緩衝機能を
付与し、低振動、低騒音化を図っている。又好ましく
は、シール取付け溝１７が面しないブラケットＢ１，Ｂ
２（本例では出力側のブラケットＢ２）にもその向き合
う面に同様なシール取付け溝１７Ａを設けるのがよい。It should be noted that, on one surface of each press punching plate 9,
As shown in FIG. 9, a seal mounting groove 17 extending in the circumferential direction, such as a V-shape, is provided in the circumferential direction around the center, and this seal mounting groove 17 is made of, for example, rubber (oil resistant rubber) which is an O-ring in this example. By arranging the sealing materials 18 (shown in FIG. 11) respectively, the press punched plates 9 and 9 to be overlapped with each other.
The space is oil-tightly sealed to prevent oil leakage, and a cushioning function is added to reduce vibration and noise. Also preferably, the brackets B1, B not facing the seal mounting groove 17
2 (in this example, the bracket B2 on the output side) is also preferably provided with a similar seal mounting groove 17A on its facing surface.

【００５２】又、遊星キャリア体６ｉのキャリヤ４ｉ
Ａ、４ｉＢ、及び遊星キャリア体６ｏのキャリヤ４ｏ
Ａ、４ｏＢは、ともに両端段付きの複数の前記結合軸２
１…、及び結合軸２１と同形の複数の支持軸２２…によ
り互いに一体に結合されるとともに、支持軸２２…に
は、円筒軸受３５、スラスト軸受３６、３６（図１、図
１１に示す）を介在させて、夫々前記遊星歯車５ｉ，５
ｏを可回転に支持し、これによって前記遊星キャリア体
６ｉ、６ｏを構成する。Further, the carrier 4i of the planet carrier body 6i
A, 4iB, and carrier 4o of the planet carrier body 6o
A and 4oB are both the plurality of coupling shafts 2 with steps at both ends.
1 and a plurality of support shafts 22 having the same shape as the coupling shaft 21 are integrally connected to each other, and the support shaft 22 has a cylindrical bearing 35 and thrust bearings 36 and 36 (shown in FIGS. 1 and 11). With the planetary gears 5i, 5
O is rotatably supported to form the planet carrier bodies 6i and 6o.

【００５３】また、入力側の遊星キャリア体６ｉの出力
側のキャリヤ４ｉＢは、その中心部に出力側に向いて突
出するボス部３９の中心孔によって、出力側の遊星変速
段Ｕｏの太陽歯車２ｏを、その後端の小径部分２ｏＡで
嵌入し固定している（図１１に示す）。The output side carrier 4iB of the input side planet carrier body 6i is provided with a central hole of the boss portion 39 projecting toward the output side at the center thereof so that the sun gear 2o of the output side planetary gear stage Uo can be provided. Is fitted and fixed by the small diameter portion 2oA at the rear end (shown in FIG. 11).

【００５４】また遊星キャリア体６ｉは、キャリヤ４ｉ
Ａが前記入力側のブラケットＢ１に形成した内孔の軸受
４０で支持され、かつ出力側の前記太陽歯車２ｏが、出
力軸１２から入力側にのびる突出部１２Ａに軸受を介し
て支持されることにより、キャリヤ４ｉＢが間接的に突
出部１２Ａに支持されることにより、ハウジング部材７
に同芯に可回転に保持される。The planet carrier body 6i is composed of the carrier 4i.
A is supported by a bearing 40 having an inner hole formed in the bracket B1 on the input side, and the sun gear 2o on the output side is supported via a bearing on a protrusion 12A extending from the output shaft 12 to the input side. The carrier 4iB is indirectly supported by the protruding portion 12A, so that the housing member 7
It is held concentrically and rotatably.

【００５５】この遊星歯車段Ｕｉは、キャリヤ体６ｉの
遊星歯車５ｉが、ロータ軸である軸体１１の太陽歯車２
ｉ、前記内歯車３ｉと噛合することにより、入力軸１１
の回転数を歯数比に応じて定まる周知の減速比で減速し
た遊星歯車５ｉの公転速度で、遊星変速段Ｕｏの太陽歯
車２ｏを回転させることとなる。In this planetary gear stage Ui, the planetary gear 5i of the carrier body 6i is the sun gear 2 of the shaft body 11 which is the rotor shaft.
i, by engaging with the internal gear 3i, the input shaft 11
The sun gear 2o of the planetary gear stage Uo is rotated at the revolving speed of the planetary gear 5i whose speed is reduced by a known speed reduction ratio determined according to the gear ratio.

【００５６】同様に、遊星キャリア体６ｏは、出力側の
キャリヤ４ｏＢが前記出力軸１２の後端で固定されるこ
とにより同心に保持され、回転する結果、歯数比に応じ
て定まる周知の減速比でさらに減速した遊星歯車５ｏの
公転速度で、キャリヤ４ｏＢを介して前記出力軸１２を
回転させる。Similarly, the planet carrier 6o is held concentrically by fixing the carrier 4oB on the output side at the rear end of the output shaft 12, and as a result of rotation, a known deceleration determined according to the gear ratio. The output shaft 12 is rotated through the carrier 4oB at the revolution speed of the planetary gear 5o that has been further reduced in ratio.

【００５７】図１２は、内歯車３ｉ、３ｏ間に１つのス
ペーサ１３が用いられるとともに、この内歯車３ｉ、３
ｏ、スペーサ１３がモータＭからのびる一連のハウジン
グ部材７内に収納した他の実施例を示している。本例で
は、出力側の太陽歯車２ｏも打抜き積層体８Ｕｏを用い
ており、かつ入力側の遊星キャリヤ体６ｉのキャリヤ４
ｉＡは入力側ブラケットＢ１に設ける軸受筒４３の受部
４４で支持される。又キャリヤ４ｉＢは、出力軸側の遊
星キャリヤ体６ｏのキャリヤ４ｏＡに設けたボス部に軸
受４５を介して回転支持されている。In FIG. 12, one spacer 13 is used between the internal gears 3i and 3o, and the internal gears 3i and 3o are
Another embodiment in which the spacer 13 is housed in a series of housing members 7 extending from the motor M is shown. In this example, the sun gear 2o on the output side also uses the punched laminated body 8Uo, and the carrier 4 of the planet carrier body 6i on the input side is used.
iA is supported by the receiving portion 44 of the bearing tube 43 provided on the input side bracket B1. The carrier 4iB is rotatably supported via a bearing 45 by a boss portion provided on the carrier 4oA of the planet carrier body 6o on the output shaft side.

【００５８】このように、本発明の遊星歯車装置は種々
変形でき、例えば、電動機Ｍを用いない所謂減速、増速
装置とし、またフランジ型に変えて脚付とし、さらには
１又は３以上の遊星変速段を用いることもできる。ま
た、キャリヤをスペーサでしじするなどの変形も可能で
ある。As described above, the planetary gear device of the present invention can be variously modified. For example, a so-called deceleration / acceleration device which does not use the electric motor M, or a leg type instead of the flange type, and one or three or more are provided. A planetary gear can also be used. Further, it is possible to make modifications such as streaking the carrier with a spacer.

【００５９】[0059]

【発明の効果】このように、本発明の遊星歯車装置は、
例えば入力側の太陽歯車など、小型の太陽歯車において
も、廻り止め用の欠円部の半径方向外方に形成した位相
合わせ嵌合部を用いることを基本として、プレス抜きさ
れたプレス抜き板を重ね合わせた打抜き積層体を用いて
形成でき、品質が安定し、かつ高精度に打抜きでき歯部
精度を高めうる。又必要な強さに応じて積重ね枚数を変
更し強さも調整しうるとともに、歯車部を位相合わせで
きかつ互いに結合しうる。またプレス抜きにさいして生
じるダレによる小さな凹部が潤滑油、グリース溜りとな
って潤滑材の持ちを良好とし、歯車の耐久性の向上に役
立つことも出来る。As described above, the planetary gear device of the present invention is
For example, even in a small sun gear such as the input side sun gear, a press punched plate that has been punched out is basically used by using the phase matching fitting portion formed radially outward of the non-rotating circular portion. It can be formed by using punched laminated bodies that are superposed, the quality is stable, and punching can be performed with high precision, and the accuracy of the tooth portion can be improved. Further, the strength can be adjusted by changing the number of stacked sheets according to the required strength, and the gear parts can be phase-matched and can be connected to each other. In addition, small recesses due to sagging that occurs when the press is removed serve as a reservoir for lubricating oil and grease, which improves the durability of the lubricant and helps improve the durability of the gear.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.

【図２】その外形を例示する側面図である。FIG. 2 is a side view illustrating the outer shape thereof.

【図３】その正面図である。FIG. 3 is a front view thereof.

【図４】その要部を拡大して示す断面図である。FIG. 4 is a cross-sectional view showing an enlarged main part thereof.

【図５】太陽歯車に用いるプレス抜き板を例示する斜視
図である。FIG. 5 is a perspective view illustrating a press punching plate used for a sun gear.

【図６】太陽歯車に用いるプレス抜き板の他の例を示す
斜視図である。FIG. 6 is a perspective view showing another example of the press punched plate used for the sun gear.

【図７】軸体を例示する斜視図である。FIG. 7 is a perspective view illustrating a shaft body.

【図８】軸体の他の例を示す斜視図である。FIG. 8 is a perspective view showing another example of the shaft body.

【図９】内歯車に用いるプレス抜き板を例示する断面図
である。FIG. 9 is a cross-sectional view illustrating a press punching plate used for an internal gear.

【図１０】その正面図である。FIG. 10 is a front view thereof.

【図１１】内歯車の位相合わせ嵌合部の嵌まり合いを例
示する拡大断面図である。FIG. 11 is an enlarged cross-sectional view illustrating the fitting of the phase matching fitting portion of the internal gear.

【図１２】他の実施例を例示する断面図である。FIG. 12 is a cross-sectional view illustrating another example.

【符号の説明】[Explanation of symbols]

１ 遊星歯車装置 ２、２ｉ、２ｏ 太陽歯車 ３、３ｉ、３ｏ 内歯車 ４、４ｉＡ、４ｉＢ、４ｏＡ、４ｏＢ キャリヤ ５、５ｉ、５ｏ 遊星歯車 ６、６ｉ、６ｏ 遊星キャリア体 ７ ハウジング部材 ８ 太陽歯車のプレス抜き板 ９ 内歯車のプレス抜き板 １０ 内歯車の位相合わせ嵌合部 １０Ａ 凹部 １０Ｂ 凸部 １１ 軸体 １１Ａ 基部 １１Ｂ 歯車取付部分 １１Ｃ 段差面 １１Ｄ 陥没部 １２ 出力軸 １４ 切欠き部 １５ 太陽歯車の位相合わせ嵌合部 １５Ａ 凹部 １５Ｂ 凸部 １６ 欠円部 Ｕｉ，Ｕｏ 遊星変速段 1 Planetary gear unit 2, 2i, 2o sun gear 3, 3i, 3o Internal gear 4, 4iA, 4iB, 4oA, 4oB carrier 5,5i, 5o planetary gear 6,6i, 6o Planet carrier 7 Housing member 8 Sun gear press blank 9 Internal gear press punched plate 10 Internal gear phase matching fitting part 10A recess 10B convex part 11 axis 11A base 11B Gear mounting part 11C Step surface 11D depression 12 Output shaft 14 Notch 15 Sun gear phase matching fitting 15A recess 15B convex part 16 missing circles Ui, Uo Planetary gears

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平８−74948（ＪＰ，Ａ) 実開 昭54−12663（ＪＰ，Ｕ) 実開 昭58−186247（ＪＰ，Ｕ) 実開 昭53−64950（ＪＰ，Ｕ) 実開 平１−65446（ＪＰ，Ｕ) 実開 平４−42952（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16H 1/00 - 1/48 F16H 57/00 - 57/12 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-8-74948 (JP, A) Actually open 54-12663 (JP, U) Actually open 58-186247 (JP, U) Actually open 53- 64950 (JP, U) Actual development 1-65446 (JP, U) Actual development 4-42952 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) F16H 1/00-1 / 48 F16H 57/00-57/12

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】太陽歯車と、この太陽歯車を囲む内歯車
と、キャリヤに前記太陽歯車、内歯車に噛合う遊星歯車
を回転自在かつ一体に支持させた遊星キャリア体とから
なる遊星変速段をハウジング部材に組立てる遊星歯車装
置であって、 前記太陽歯車は、外歯部をプレス抜きされたリング状の
プレス抜き板を積層した打抜き積層体と、この打抜き積
層体を支持する軸体からなるとともに、 前記軸体は、軸方向に先端まで続く連続する切欠き部を
形成する歯車取付部分を具え、 かつ前記プレス抜き板には、前記外歯部、前記軸体の前
記切欠き部に一致する欠円部を有し歯車取付部分の断面
形状と等しい形状の非円形の中心孔、及び該プレス抜き
板の一面に設けた凸部と、他面の凹部とからなりしかも
凸部と凹部との嵌合によって重なるプレス抜き板が位相
合わせされる位相合わせ嵌合部を形成するとともに、 前記位相合わせ嵌合部は、前記欠円部の半径方向外方に
設けられたことを特徴とする遊星歯車装置。1. A planetary gear stage comprising a sun gear, an internal gear surrounding the sun gear, and a planet carrier body in which a carrier rotatably and integrally supports a planet gear that meshes with the sun gear and the internal gear. A planetary gear device assembled to a housing member, wherein the sun gear comprises a punched laminated body in which ring-shaped press-punched plates whose outer teeth are punched out are laminated, and a shaft body which supports the punched laminated body. The shaft body has a gear mounting portion that forms a continuous cutout portion that continues to the tip in the axial direction, and the press punch plate is aligned with the external tooth portion and the cutout portion of the shaft body. A non-circular center hole having a cutout portion and a shape equal to the cross-sectional shape of the gear mounting portion, a convex portion provided on one surface of the press punched plate, and a concave portion on the other surface, and the convex portion and the concave portion Pressing that overlaps due to mating To form a phase alignment fitting portion in which the plate is phase matching, the phase matching fitting portion, the planetary gear unit, characterized in that provided radially outwardly of said segmental portion. 【請求項２】前記軸体は、基部と、この基部に連なる前
記歯車取付部分とを具え、かつ基部と歯車取付部分との
間に陥没部を有する段差面を形成するとともに、 前記打抜き積層体の入力側の外面に位置するプレス打抜
き板の前記凸部を、前記段差面の陥没部に嵌入すること
を特徴とする請求項１記載の遊星歯車装置。2. The shaft body includes a base portion and the gear mounting portion connected to the base portion, and forms a stepped surface having a recessed portion between the base portion and the gear mounting portion. 2. The planetary gear device according to claim 1, wherein the convex portion of the press-punched plate located on the outer surface on the input side of is fitted into the recessed portion of the step surface. 【請求項３】前記プレス抜き板の凸部と凹部とは、プレ
スの半抜きにより両面の同じ位置に形成されかつその嵌
合によって重なるプレス抜き板を結合することを特徴と
する請求項１記載の遊星歯車装置。3. The press punched plate is formed in the same position on both sides by the half punching of the press, and the press punched plates which overlap each other are joined by fitting the press punched plate. Planetary gear set. 【請求項４】前記プレス抜きは、フアインブランキング
加工であることを特徴とする請求項１記載の遊星歯車装
置。4. The planetary gear device according to claim 1, wherein the press punching is a fine blanking process.
JP33255394A 1994-12-12 1994-12-12 Planetary gear set Expired - Fee Related JP3532984B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33255394A JP3532984B2 (en) 1994-12-12 1994-12-12 Planetary gear set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33255394A JP3532984B2 (en) 1994-12-12 1994-12-12 Planetary gear set

Publications (2)

Publication Number Publication Date
JPH08166049A JPH08166049A (en) 1996-06-25
JP3532984B2 true JP3532984B2 (en) 2004-05-31

Family

ID=18256217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33255394A Expired - Fee Related JP3532984B2 (en) 1994-12-12 1994-12-12 Planetary gear set

Country Status (1)

Country Link
JP (1) JP3532984B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19741207B4 (en) * 1996-10-16 2008-06-26 Linde Material Handling Gmbh drive axle
JPH1191382A (en) * 1997-09-18 1999-04-06 Linde Ag Driving axle
JP4883339B2 (en) * 2005-03-25 2012-02-22 アイシン精機株式会社 Gear housing
JP5424552B2 (en) * 2007-11-15 2014-02-26 光洋シーリングテクノ株式会社 Clutch cylinder for fluid automatic transmission

Also Published As

Publication number Publication date
JPH08166049A (en) 1996-06-25

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