JP4278679B2 - Planetary gear set - Google Patents
Planetary gear set Download PDFInfo
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- JP4278679B2 JP4278679B2 JP2006349382A JP2006349382A JP4278679B2 JP 4278679 B2 JP4278679 B2 JP 4278679B2 JP 2006349382 A JP2006349382 A JP 2006349382A JP 2006349382 A JP2006349382 A JP 2006349382A JP 4278679 B2 JP4278679 B2 JP 4278679B2
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- pinion shaft
- carrier
- hole
- planetary gear
- pinion
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- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- 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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Retarders (AREA)
Description
本発明は、車両の自動変速機等に用いられる遊星歯車装置に関する。 The present invention relates to a planetary gear device used for an automatic transmission or the like of a vehicle.
自動変速機は、一般に、一つないし複数の遊星歯車装置を有しており、遊星歯車装置が有する減速／増速作用を利用して変速を行っている。遊星歯車装置は、サンギヤに噛み合う複数のピニオンギヤを有し、複数のピニオンギヤはキャリアに立設されたピニオンシャフトにベアリングを介して回転自在に支持される。 An automatic transmission generally has one or a plurality of planetary gear units, and shifts using a speed reduction / acceleration action of the planetary gear unit. The planetary gear device has a plurality of pinion gears that mesh with the sun gear, and the plurality of pinion gears are rotatably supported by a pinion shaft erected on a carrier via a bearing.
特許文献１に開示される遊星歯車装置では、キャリアにピニオンシャフトと同径の有底円形穴を形成し、これにピニオンシャフトを挿入し、キャリアとピニオンシャフトのそれぞれに径方向に形成されたＣピン孔にＣピン（スプリングピン）を圧入することでピニオンシャフトをキャリアに固定している。
キャリアとピニオンシャフトのそれぞれに径方向に形成されたＣピン孔にＣピンを圧入するためには、２つのＣピン孔の軸方向位置が一致している必要がある。特許文献１に開示される遊星歯車装置では、キャリアに形成される有底穴の底にピニオンシャフトの先端を当接させてピニオンシャフトの軸方向の位置決めを行い、これによって２つのＣピン孔の軸方向位置を一致させている。 In order to press-fit the C pin into the C pin hole formed in the radial direction on each of the carrier and the pinion shaft, the axial positions of the two C pin holes need to coincide with each other. In the planetary gear device disclosed in Patent Document 1, the tip of the pinion shaft is brought into contact with the bottom of the bottomed hole formed in the carrier, thereby positioning the pinion shaft in the axial direction. The axial position is matched.
しかしながら、このような位置決め方法では、キャリアに形成される有底穴の深さに寸法誤差があると、２つのＣピン孔の軸方向位置がずれ、Ｃピンを挿入できない、挿入しにくいといったＣピンの圧入不良が生じる。 However, in such a positioning method, if there is a dimensional error in the depth of the bottomed hole formed in the carrier, the axial positions of the two C pin holes are shifted, and the C pin cannot be inserted or is difficult to insert. Pin press-in failure occurs.
本発明は、このような従来技術の技術的課題を鑑みてなされたもので、ピニオンシャフトの位置決めを高い精度でかつ容易に行えるようにすることを目的とする。 The present invention has been made in view of such technical problems of the prior art, and an object of the present invention is to enable easy and accurate positioning of the pinion shaft.
本発明に係る遊星歯車装置では、キャリアの外表面と有底穴とを連通する貫通孔をキャリアに形成し、組立て時、貫通孔から位置決め用治具を挿入してピニオンシャフトの先端に位置決め用治具を当接させてピニオンシャフトの軸方向の位置決めを行う。 In the planetary gear device according to the present invention, a through-hole that communicates the outer surface of the carrier and the bottomed hole is formed in the carrier, and when assembling, a positioning jig is inserted from the through-hole to position the tip of the pinion shaft. Position the pinion shaft in the axial direction by contacting the jig.
本発明によれば、ピニオンシャフトを挿入する穴が有底であっても、位置決め用治具を用いて、ピニオンシャフトの軸方向の位置決めを容易に、かつ精度よく行うことができる。 According to the present invention, even if the hole for inserting the pinion shaft has a bottom, the positioning of the pinion shaft in the axial direction can be easily and accurately performed using the positioning jig.
以下、添付図面を参照しながら本発明の実施形態について説明する。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
図１は本発明に係る遊星歯車装置１を備えた自動変速機の一部の断面を示している。遊星歯車装置１は、サンギヤ２と、サンギヤ２に噛み合うピニオンギヤ３と、ピニオンギヤ３に噛み合うリングギヤ４を有している。 FIG. 1 shows a partial cross section of an automatic transmission provided with a planetary gear device 1 according to the present invention. The planetary gear device 1 includes a sun gear 2, a pinion gear 3 that meshes with the sun gear 2, and a ring gear 4 that meshes with the pinion gear 3.
ピニオンギヤ３はキャリア５に形成された空隙６内に収装され、ピニオンシャフト８、ラジアルニードルベアリング９を介してキャリア５に回転自在に支持される。また、ピニオンギヤ３及びラジアルニードルベアリング９とキャリア５との間には、ピニオンギヤ３及びラジアルニードルベアリング９を軸方向に支持するワッシャ１０が介装される。 The pinion gear 3 is accommodated in a gap 6 formed in the carrier 5 and is rotatably supported by the carrier 5 via a pinion shaft 8 and a radial needle bearing 9. A washer 10 is interposed between the pinion gear 3 and the radial needle bearing 9 and the carrier 5 to support the pinion gear 3 and the radial needle bearing 9 in the axial direction.
キャリア５の空隙６が形成される位置には、キャリア５の一方の端面５ａから軸方向に延びる円形の有底穴１２が空隙６を通るように形成され、ピニオンシャフト８は先端８ａ側から有底穴１２に挿入される。ピニオンシャフト８、キャリア５にはそれぞれ径方向に延びるＣピン孔１４、１５（「第１の孔」、「第２の孔」に対応）が形成され、これら２つのＣピン孔１４、１５に一本のＣピン１６（スプリングピン、「固定手段」、「固定部材」に対応）を圧入することでピニオンシャフト８がキャリア５に固定される。 At the position where the gap 6 of the carrier 5 is formed, a circular bottomed hole 12 extending in the axial direction from one end face 5a of the carrier 5 is formed so as to pass through the gap 6, and the pinion shaft 8 is provided from the tip 8a side. It is inserted into the bottom hole 12. The pinion shaft 8 and the carrier 5 are respectively formed with C pin holes 14 and 15 (corresponding to “first hole” and “second hole”) extending in the radial direction. The pinion shaft 8 is fixed to the carrier 5 by press-fitting a single C pin 16 (corresponding to a spring pin, “fixing means”, “fixing member”).
また、キャリア５には、キャリア５の外表面５ｂ（この実施形態では有底穴１２が形成される側と反対側の表面）と有底穴１２の底１２ｂとを連通し、ピニオンシャフト８と平行に延びる貫通孔１８が形成される。貫通孔１８の断面は有底穴１２の断面よりも小さく、かつ、キャリア５を軸方向に支持するスラストベアリング２０の転動面を避ける位置（スラストベアリング２０の転動面よりも径方向外側位置）に開口する。この貫通孔１８は後に説明するように遊星歯車装置１を組み立てる際にピニオンシャフト８の軸方向の位置決めを行う際に用いられる。 The carrier 5 communicates with the outer surface 5b of the carrier 5 (in this embodiment, the surface opposite to the side where the bottomed hole 12 is formed) and the bottom 12b of the bottomed hole 12, and the pinion shaft 8 A through hole 18 extending in parallel is formed. The cross-section of the through-hole 18 is smaller than the cross-section of the bottomed hole 12, and a position that avoids the rolling surface of the thrust bearing 20 that supports the carrier 5 in the axial direction (a position radially outside the rolling surface of the thrust bearing 20) ). As will be described later, the through hole 18 is used when the pinion shaft 8 is positioned in the axial direction when the planetary gear device 1 is assembled.
また、ピニオンシャフト８の背面８ｂには、ピニオンシャフト８の中心軸から偏心した位置に窪み８ｃが形成される。この窪み８ｃは後に説明するように遊星歯車装置１を組み立てる際にピニオンシャフト８の回転方向の位置決めを行う際に用いられる。 Further, a recess 8 c is formed on the back surface 8 b of the pinion shaft 8 at a position eccentric from the central axis of the pinion shaft 8. The recess 8c is used when positioning the pinion shaft 8 in the rotational direction when assembling the planetary gear device 1 as will be described later.
また、キャリア５には、一端がキャリア５の内周面に開口し、他端が有底穴１２内に開口する第１の油路２１が形成され、ピニオンシャフト８には、一端が第１の油路２１の他端と連通し、他端がラジアルニードルベアリング９に向けて開口する第２の油路２２が形成される。第２の油路２２は、ピニオンシャフト８の外周面のラジアルニードルベアリング９の略中央に対向する位置からピニオンシャフト８の中心に向けてピニオンシャフト８の径方向に延びる径方向油路２２ａと、ピニオンシャフト８の有底穴１２に収装された部分の外周面からピニオンシャフト８の内部に向けて斜めに延び、径方向油路２２ａの途中に連通する傾斜油路２２ｂとで構成される。 The carrier 5 is formed with a first oil passage 21 having one end opened on the inner peripheral surface of the carrier 5 and the other end opened in the bottomed hole 12. The pinion shaft 8 has one end first. A second oil passage 22 is formed which communicates with the other end of the oil passage 21 and opens at the other end toward the radial needle bearing 9. The second oil passage 22 has a radial oil passage 22a extending in the radial direction of the pinion shaft 8 from a position facing the substantially center of the radial needle bearing 9 on the outer peripheral surface of the pinion shaft 8 toward the center of the pinion shaft 8. The inclined oil passage 22b extends obliquely from the outer peripheral surface of the portion accommodated in the bottomed hole 12 of the pinion shaft 8 toward the inside of the pinion shaft 8, and communicates in the middle of the radial oil passage 22a.
キャリア５の内周面には、変速機の入力軸３０に設けられた油路３１から、図中矢印Ｆで示す流れにより潤滑油が導かれるので、これら第１及び第２の油路２１、２２を介して潤滑油をラジアルニードルベアリング９の中央に供給し、ラジアルニードルベアリング９を良好に潤滑することができる。 Lubricating oil is guided to the inner peripheral surface of the carrier 5 from an oil passage 31 provided on the input shaft 30 of the transmission by a flow indicated by an arrow F in the figure, so that the first and second oil passages 21, Lubricating oil can be supplied to the center of the radial needle bearing 9 via 22 to lubricate the radial needle bearing 9 satisfactorily.
次に、上記遊星歯車装置の組立て手順について説明する。 Next, the assembly procedure of the planetary gear device will be described.
図２Ａにはキャリア５のみが描かれている。図中キャリア５が２つに分割されているのはピニオンギヤ３を収装する空隙６を通る断面が描かれているためである。 Only the carrier 5 is depicted in FIG. 2A. The reason why the carrier 5 is divided into two in the drawing is that a cross section passing through the gap 6 that houses the pinion gear 3 is drawn.
この状態で、まず、図２Ｂに示すように、ピニオンギヤ３、ラジアルニードルベアリング９及びワッシャ１０をキャリア５の空隙６にセットし、仮位置決め用のピン（図示せず）を有底穴１２に挿入し、ピニオンギヤ３、ラジアルニードルベアリング９及びワッシャ１０の中心を有底穴１２の中心に整列させる。 In this state, first, as shown in FIG. 2B, the pinion gear 3, the radial needle bearing 9 and the washer 10 are set in the gap 6 of the carrier 5, and a temporary positioning pin (not shown) is inserted into the bottomed hole 12. Then, the centers of the pinion gear 3, the radial needle bearing 9 and the washer 10 are aligned with the center of the bottomed hole 12.
次に、図２Ｃに示すように、有底穴１２にピニオンシャフト８を挿入する。ピニオンギヤ３、ラジアルニードルベアリング９及びワッシャ１０の中心が有底穴１２の中心に整列していることから、ピニオンシャフト８の先端８ａが有底穴１２の底１２ｂに当接するまで容易に挿入することができる。 Next, as shown in FIG. 2C, the pinion shaft 8 is inserted into the bottomed hole 12. Since the center of the pinion gear 3, the radial needle bearing 9 and the washer 10 are aligned with the center of the bottomed hole 12, it can be easily inserted until the tip 8a of the pinion shaft 8 contacts the bottom 12b of the bottomed hole 12. Can do.
続いて、図２Ｄに示すように、キャリア５を図３に示す第１の治具４１にセットし、第１の治具４１から延びる３本の位置決めピン４１ｐをキャリア５に形成される貫通孔１８に挿入する。位置決めピン４１ｐの長さは、位置決めピン４１ｐの先端がピニオンシャフト８の先端８ａに当接するとピニオンシャフト８に形成されたＣピン孔１４の軸方向位置がキャリア５に形成されたＣピン孔１５の軸方向位置と一致する位置にピニオンシャフト８が位置決めされる長さに設定される。 2D, the carrier 5 is set on the first jig 41 shown in FIG. 3, and three positioning pins 41p extending from the first jig 41 are formed in the carrier 5. 18 is inserted. The length of the positioning pin 41p is such that the axial position of the C pin hole 14 formed in the pinion shaft 8 is formed in the carrier 5 when the tip of the positioning pin 41p comes into contact with the tip 8a of the pinion shaft 8. Is set to a length at which the pinion shaft 8 is positioned at a position coinciding with the axial position.
ピニオンシャフト８の軸方向位置の位置決めができたら、続いてピニオンシャフト８の背面８ｂに形成された窪み８ｃに、図２Ｅに示すように、図４に示す第２の治具４２の位置決め突起４２ｐを嵌合させる。そして、ピニオンシャフト８に形成されたＣピン孔１４の軸線と、キャリアに形成されたＣピン孔１５の軸線が一致するように、第２の治具４２を回転させてピニオンシャフト８の回転方向の位置決めを行う。 When the axial position of the pinion shaft 8 is positioned, the positioning projection 42p of the second jig 42 shown in FIG. 4 is subsequently placed in the recess 8c formed on the back surface 8b of the pinion shaft 8 as shown in FIG. 2E. Mate. Then, the second jig 42 is rotated so that the axis of the C pin hole 14 formed in the pinion shaft 8 and the axis of the C pin hole 15 formed in the carrier coincide with each other. Perform positioning.
ピニオンシャフト８の回転方向の位置決めができたら、図２Ｆに示すように、Ｃピン孔１４、１５に一本のＣピン１６を圧入し、ピニオンシャフト８をキャリア５に固定する。 When the pinion shaft 8 is positioned in the rotational direction, a single C pin 16 is press-fitted into the C pin holes 14 and 15 to fix the pinion shaft 8 to the carrier 5 as shown in FIG. 2F.
そして、図２Ｇに示すように、第１の治具４１、第２の治具４２を取り外せば、遊星歯車装置１の組立てが完了する。 And as shown to FIG. 2G, if the 1st jig | tool 41 and the 2nd jig | tool 42 are removed, the assembly of the planetary gear apparatus 1 will be completed.
なお、ここではキャリア５にピニオンギヤ３、ラジアルニードルベアリング９及びワッシャ１０を組み付けた後に、キャリア５を第１の治具４１にセットしているが、キャリア５のみを第１の治具４１に予めセットしておき、これにピニオンギヤ３、ラジアルニードルベアリング９及びワッシャ１０を組み付けるようにしても構わない。 Here, after the pinion gear 3, the radial needle bearing 9 and the washer 10 are assembled to the carrier 5, the carrier 5 is set to the first jig 41. However, only the carrier 5 is preliminarily attached to the first jig 41. The pinion gear 3, the radial needle bearing 9 and the washer 10 may be assembled to the pinion gear 3.
続いて本発明の作用効果について説明する。 Then, the effect of this invention is demonstrated.
本発明にかかる遊星歯車装置では、キャリア５の外表面５ｂと有底穴１２とを連通する貫通孔１８をキャリア５に形成する。組立て時、貫通孔１８から位置決め用治具（第１の治具４１の位置決めピン４１ｐ）を挿入してピニオンシャフト８の先端に位置決め用治具を当接させてピニオンシャフト８の軸方向の位置決めを行うようにした（第１の発明）。 In the planetary gear device according to the present invention, the carrier 5 is formed with a through hole 18 that communicates the outer surface 5 b of the carrier 5 with the bottomed hole 12. During assembly, a positioning jig (positioning pin 41p of the first jig 41) is inserted from the through hole 18, and the positioning jig is brought into contact with the tip of the pinion shaft 8 so that the pinion shaft 8 is positioned in the axial direction. (First invention).
この構成によれば、ピニオンシャフト８が挿入される穴が一方の側が閉じている有底穴１２であっても、位置決め用治具を用いてピニオンシャフト８の軸方向の位置決めを容易に、かつ精度よく行うことができる。また、ピニオンシャフト８を有底穴１２に挿入する際に、有底穴１２内の空気を貫通孔１８を介してキャリア５の外に排出することができるので、有底穴１２内の空気によってピニオンシャフト８が押し戻されることがなくなり、ピニオンシャフト８の組付け性を向上させることができる。 According to this configuration, even if the hole into which the pinion shaft 8 is inserted is the bottomed hole 12 where one side is closed, the pinion shaft 8 can be easily positioned in the axial direction using the positioning jig, and It can be performed with high accuracy. Further, when the pinion shaft 8 is inserted into the bottomed hole 12, the air in the bottomed hole 12 can be discharged out of the carrier 5 through the through hole 18. The pinion shaft 8 is not pushed back, and the assemblability of the pinion shaft 8 can be improved.
貫通孔１８は、好ましくは、キャリア５の外表面５ｂと有底穴１２の底１２ｂとを連通し、有底穴１２よりも断面積が小さくなるように形成する（第２の発明）。しかしながら、貫通孔１８の形成方法はこれに限定されず、例えば、キャリア５の外周面あるいは内周面と有底穴１２の底１２ｂ近傍とを連通するように貫通孔１８を形成してもよい。この場合、キャリア５の外周面側あるいは内周面側から位置決め用治具を挿入し、有底穴１２内部に突出する位置決め用治具の側面にピニオンシャフト８の先端を当接させてピニオンシャフト８の軸方向の位置決めを行うようにする。 The through hole 18 is preferably formed so that the outer surface 5b of the carrier 5 communicates with the bottom 12b of the bottomed hole 12 so that the cross-sectional area is smaller than that of the bottomed hole 12 (second invention). However, the method of forming the through hole 18 is not limited to this, and for example, the through hole 18 may be formed so that the outer peripheral surface or inner peripheral surface of the carrier 5 communicates with the vicinity of the bottom 12b of the bottomed hole 12. . In this case, a positioning jig is inserted from the outer peripheral surface side or the inner peripheral surface side of the carrier 5, and the tip of the pinion shaft 8 is brought into contact with the side surface of the positioning jig protruding into the bottomed hole 12. Positioning in the axial direction of 8 is performed.
なお、貫通孔１８を有底穴１２の底１２ｂに形成する場合、貫通孔１８は必ずしもスラストベアリング２０の転動面の径方向外側に位置する必要はなく、スラストベアリング２０の転動面に干渉しない位置であればよく、径方向内側に位置させてもよい。 When the through hole 18 is formed in the bottom 12 b of the bottomed hole 12, the through hole 18 does not necessarily have to be located radially outside the rolling surface of the thrust bearing 20 and interferes with the rolling surface of the thrust bearing 20. It may be a position that does not, and may be located radially inside.
ピニオンシャフト８をキャリア５に固定する構成としては、キャリア５の径方向に延びる第１の孔（Ｃピン孔１４）をキャリア５に形成し、ピニオンシャフト８の径方向に延びる第２の孔（Ｃピン孔１５）をピニオンシャフト８に形成し、固定部材（Ｃピン１６）を第１、第２の孔に挿入する構成が、ピニオンシャフト８をキャリア５に簡易な構造で、かつ確実に固定することができ好適である（第３の発明）。 As a configuration for fixing the pinion shaft 8 to the carrier 5, a first hole (C pin hole 14) extending in the radial direction of the carrier 5 is formed in the carrier 5, and a second hole extending in the radial direction of the pinion shaft 8 ( The structure in which the C pin hole 15) is formed in the pinion shaft 8 and the fixing member (C pin 16) is inserted into the first and second holes, the pinion shaft 8 is simply fixed to the carrier 5 with a simple structure. This is preferable (third invention).
この構成では第１の孔と第２の孔の軸方向位置を精度良く合わせる必要があるが、上記の通り本発明によればピニオンシャフト８の軸方向の位置決めを精度よく行えるので、第１の孔と第２の孔の軸方向位置を精度良く合わせることができ、固定部材を挿入できない、挿入しにくいといった挿入不良が起こることはない。 In this configuration, it is necessary to match the axial positions of the first hole and the second hole with high precision. However, according to the present invention, as described above, the axial positioning of the pinion shaft 8 can be performed with high precision. The axial positions of the hole and the second hole can be matched with high accuracy, and there is no possibility of poor insertion such that the fixing member cannot be inserted or is difficult to insert.
貫通孔１８はピニオンシャフト８と略平行に形成するのが好適である（第４の発明）。この構成によれば貫通孔１８を容易に形成することができる。 The through hole 18 is preferably formed substantially parallel to the pinion shaft 8 (fourth invention). According to this configuration, the through hole 18 can be easily formed.
また、一端がキャリア５の内周面に開口し、他端が有底穴１２内に開口する第１の油路２１をキャリア５に形成し、一端が第１の油路２１の他端と連通し、他端がピニオンシャフト８とピニオンギヤ３の間に配置されるラジアルニードルベアリング９に向けて開口する第２の油路２２をピニオンシャフト８に形成するようにしても良い（第５の発明）。 Further, a first oil passage 21 having one end opened on the inner peripheral surface of the carrier 5 and the other end opened in the bottomed hole 12 is formed in the carrier 5, and one end is formed with the other end of the first oil passage 21. A second oil passage 22 may be formed in the pinion shaft 8 that communicates with the other end and opens toward a radial needle bearing 9 disposed between the pinion shaft 8 and the pinion gear 3 (fifth invention). ).
このような第１及び第２の油路２１、２２を形成することで、キャリア５の内周面からラジアルニードルベアリング９に潤滑油を確実に導くことができ、ラジアルニードルベアリング９の潤滑性能を向上させることができる。また、有底穴１２とピニオンシャフト８の間のクリアランスは小さく、第１及び第２の油路２１、２２からピニオンシャフト８と有底穴１２の間の隙間に潤滑油が漏れることは殆どないが、漏れたとしても貫通孔１８からキャリア５の外側に排出することが可能である。 By forming such first and second oil passages 21 and 22, the lubricating oil can be reliably guided from the inner peripheral surface of the carrier 5 to the radial needle bearing 9, and the lubricating performance of the radial needle bearing 9 can be improved. Can be improved. Further, the clearance between the bottomed hole 12 and the pinion shaft 8 is small, and the lubricating oil hardly leaks from the first and second oil passages 21 and 22 into the gap between the pinion shaft 8 and the bottomed hole 12. However, even if it leaks, it can be discharged from the through hole 18 to the outside of the carrier 5.
以上、本発明の実施形態について説明したが、上記実施形態は本発明の適用可能な構成の一例を示したに過ぎず、本発明の技術的範囲を当該構成に限定する趣旨ではない。本発明は、キャリアに形成された有底穴にピニオンシャフトを挿入し固定する構成であれば、自動変速機用の遊星歯車装置に限らず、広く適用可能なものである。 As mentioned above, although embodiment of this invention was described, the said embodiment only showed an example of the structure which can apply this invention, and is not the meaning which limits the technical scope of this invention to the said structure. The present invention is not limited to the planetary gear device for an automatic transmission and can be widely applied as long as the pinion shaft is inserted and fixed in a bottomed hole formed in the carrier.
１ 遊星歯車装置
２ サンギヤ
３ ピニオンギヤ
４ リングギヤ
５ キャリア
８ ピニオンシャフト
９ ラジアルニードルベアリング
１４ Ｃピン孔（第１の孔）
１５ Ｃピン孔（第２の孔）
１６ Ｃピン（固定部材）
２１ 第１の油路
２２ 第２の油路
４１ 第１の治具（位置決め用治具）
４２ 第２の治具
DESCRIPTION OF SYMBOLS 1 Planetary gear apparatus 2 Sun gear 3 Pinion gear 4 Ring gear 5 Carrier 8 Pinion shaft 9 Radial needle bearing 14 C pin hole (1st hole)
15 C pin hole (second hole)
16 C pin (fixing member)
21 First oil passage 22 Second oil passage 41 First jig (positioning jig)
42 Second jig
Claims (5)
前記ピニオンシャフトの軸方向に延び前記ピニオンシャフトが挿入される有底穴を有するキャリアと、
前記ピニオンシャフトを前記キャリアに固定する固定手段と、
前記ピニオンシャフトに回転自在に支持されるピニオンギヤと、
を備えた遊星歯車装置において、
前記キャリアの外表面と前記有底穴とを連通する貫通孔を前記キャリアに形成し、組立て時、前記貫通孔から位置決め用治具を挿入して前記ピニオンシャフトの先端に前記位置決め用治具を当接させて前記ピニオンシャフトの軸方向の位置決めを行うことを特徴とする遊星歯車装置。 A pinion shaft,
A carrier having a bottomed hole that extends in the axial direction of the pinion shaft and into which the pinion shaft is inserted;
Fixing means for fixing the pinion shaft to the carrier;
A pinion gear rotatably supported by the pinion shaft;
In a planetary gear device provided with
A through hole that communicates the outer surface of the carrier and the bottomed hole is formed in the carrier, and when assembling, a positioning jig is inserted from the through hole, and the positioning jig is attached to the tip of the pinion shaft. A planetary gear device characterized in that the pinion shaft is positioned in the axial direction by contact.
前記キャリアが前記キャリアの径方向に延びる第２の孔を有し、
前記固定手段が、前記第１及び第２の孔に挿入されて前記ピニオンシャフトを前記キャリアに固定する固定部材であることを特徴とする請求項１または２に記載の遊星歯車装置。 The pinion shaft has a first hole extending in a radial direction of the pinion shaft;
The carrier has a second hole extending in a radial direction of the carrier;
The planetary gear device according to claim 1 or 2, wherein the fixing means is a fixing member that is inserted into the first and second holes to fix the pinion shaft to the carrier.
前記ピニオンシャフトが、一端が前記第１の油路の前記他端と連通し他端が前記ピニオンシャフトと前記ピニオンギヤの間に配置されるベアリングに向けて開口する第２の油路を有することを特徴とする請求項１から４のいずれか一つに記載の遊星歯車装置。 The carrier has a first oil passage having one end opened in the inner peripheral surface of the carrier and the other end opened in the bottomed hole;
The pinion shaft has a second oil passage having one end communicating with the other end of the first oil passage and the other end opening toward a bearing disposed between the pinion shaft and the pinion gear. The planetary gear device according to any one of claims 1 to 4, wherein the planetary gear device is characterized.
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| JP2006349382A JP4278679B2 (en) | 2006-12-26 | 2006-12-26 | Planetary gear set |
| KR1020070128885A KR101441687B1 (en) | 2006-12-26 | 2007-12-12 | Planetary Gear Apparatus |
| CN2007101993223A CN101210613B (en) | 2006-12-26 | 2007-12-17 | Planetary gear device |
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| JP2006349382A JP4278679B2 (en) | 2006-12-26 | 2006-12-26 | Planetary gear set |
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| US10907726B2 (en) | 2019-04-10 | 2021-02-02 | Deere & Company | Planetary gearset planet pin retention |
| CN113357319B (en) * | 2021-05-24 | 2022-07-08 | 温州大学 | Symmetrical shock wave oscillating tooth speed reducer |
| CN113417988B (en) * | 2021-06-29 | 2024-04-16 | 烽渡汽车零部件(浙江)股份有限公司 | Automobile motor gear shaft with gear difficult to loosen |
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| JP2004263745A (en) * | 2003-02-28 | 2004-09-24 | Jatco Ltd | Planetary gear device |
| JP4474942B2 (en) * | 2004-02-25 | 2010-06-09 | 株式会社デンソー | Starter manufacturing method and starter |
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| CN101210613A (en) | 2008-07-02 |
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