JPS632693Y2 - - Google Patents
Info
- Publication number
- JPS632693Y2 JPS632693Y2 JP20482783U JP20482783U JPS632693Y2 JP S632693 Y2 JPS632693 Y2 JP S632693Y2 JP 20482783 U JP20482783 U JP 20482783U JP 20482783 U JP20482783 U JP 20482783U JP S632693 Y2 JPS632693 Y2 JP S632693Y2
- Authority
- JP
- Japan
- Prior art keywords
- passage
- lubricating oil
- planetary gear
- sun gear
- carrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000010687 lubricating oil Substances 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000012530 fluid Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
- F16H57/0431—Means for guiding lubricant directly onto a tooth surface or to foot areas of a gear, e.g. by holes or grooves in a tooth flank
-
- 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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0479—Gears or bearings on planet carriers
Landscapes
- General Details Of Gearings (AREA)
Description
【考案の詳細な説明】
〔考案の利用分野〕
本考案は、主として車両のの自動変速機等に用
いられる遊星歯車装置の潤滑油通路構造に関す
る。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a lubricating oil passage structure of a planetary gear device mainly used in automatic transmissions of vehicles and the like.
車両用自動変速機には流体式、電磁式、機械式
の３種があるが、今日主流を占めているのは流体
式である。これはトルクエンバータまたは流体継
手に変速要素としての補助変速装置を組合わせ、
油圧制御装置により変速要素を作動させる方式で
ある。補助変速装置としては遊星歯車装置が広く
使用され、変速要素には湿式多板クラツチ、バン
ドブレーキ及び一方向クラツチが用いられる。
There are three types of automatic transmissions for vehicles: fluid type, electromagnetic type, and mechanical type, but the fluid type is the mainstream type today. This combines a torque converter or fluid coupling with an auxiliary transmission as a transmission element,
This method uses a hydraulic control device to operate the transmission elements. Planetary gears are widely used as auxiliary transmissions, and wet multi-disc clutches, band brakes and one-way clutches are used as transmission elements.
第１図には従来における遊星歯車装置１０の拡
大断面図が示されており、この遊星歯車装置１０
では出力軸１２に太陽歯車１４が固着され、太陽
歯車１４に遊星歯車１６がかみ合つている。ま
た、出力軸１２及び太陽歯車１４と同軸的に内歯
歯車１８が配置され、遊星歯車１６とかみ合つて
いる。遊星歯車１６はニードル軸受２０を介して
シヤフト２２に軸支され、シヤフト２２の両端は
出力軸１２から延びるキヤリア２４へ一体的に連
結されている。 FIG. 1 shows an enlarged sectional view of a conventional planetary gear device 10.
In this case, a sun gear 14 is fixed to the output shaft 12, and a planetary gear 16 is meshed with the sun gear 14. Further, an internal gear 18 is disposed coaxially with the output shaft 12 and the sun gear 14, and meshes with the planetary gear 16. The planetary gear 16 is pivotally supported by a shaft 22 via a needle bearing 20, and both ends of the shaft 22 are integrally connected to a carrier 24 extending from the output shaft 12.
この遊星歯車装置１０における潤滑は出力軸１
２に形成された中空部２６、半径方向通路２８、
キヤリア２４へ形成された通路３０、シヤフト２
２の軸方向通路３２及び半径方向通路３４へ潤滑
油を送り込むことによつて行なわれる。また、太
陽歯車１４の歯面１４Ａには、第２図にも示すよ
うに出力軸１２の中空部２６から太陽歯車１４の
半径方向通路３６を介して潤滑油が供給され、潤
滑油の遠心力を利用してあるいは油圧制御装置に
より強制的に行なつている。 Lubrication in this planetary gear device 10 is carried out on the output shaft 1.
a hollow portion 26 formed in 2, a radial passage 28,
Passage 30 formed to carrier 24, shaft 2
This is done by pumping lubricating oil into the axial passages 32 and radial passages 34 of No. 2. Furthermore, as shown in FIG. 2, lubricating oil is supplied to the tooth surface 14A of the sun gear 14 from the hollow part 26 of the output shaft 12 through the radial passage 36 of the sun gear 14, and the centrifugal force of the lubricating oil This is done forcibly using a hydraulic control device or by using a hydraulic control device.
しかし、このような潤滑油の通路構造では太陽
歯車に通路を穿設することより太陽歯車自体の強
度が低下してその寿命が短かくなるという問題が
ある。また、太陽歯車が小さい場合この歯底への
小孔形成は、かなりの難作業となつている。 However, with such a lubricating oil passage structure, there is a problem in that the strength of the sun gear itself is reduced by providing a passage in the sun gear, and its life is shortened. Furthermore, when the sun gear is small, forming a small hole in the tooth bottom becomes a very difficult task.
本考案はかかる事情に鑑みてなされたものであ
る、その目的は、太陽歯車への加工を排除してそ
の強度低下を防止し、しかも歯面へ潤滑供給が円
滑に行なえるような遊星歯車装置の潤滑油通路構
造を提供することにある。
The present invention was developed in view of the above circumstances.The purpose of the present invention is to eliminate machining of the sun gear to prevent its strength from decreasing, and to provide a planetary gear device that can smoothly supply lubrication to the tooth surfaces. The purpose of the present invention is to provide a lubricating oil passage structure.
上記目的を達成するため、本考案では、キヤリ
アに形成された遊星歯車用潤滑油通路を途中で分
岐させ、その出口を太陽歯車の歯面側へ開口させ
て潤滑油を強制的に歯面へ供給できるよう構成
し、太陽歯車自体の通路を省略している。
In order to achieve the above object, in the present invention, the lubricating oil passage for the planetary gear formed in the carrier is branched in the middle, and its outlet is opened to the tooth side of the sun gear to force the lubricating oil to the tooth side. It is configured so that it can be supplied, and the passage for the sun gear itself is omitted.
第３図には、本考案の潤滑油通路構造が適用さ
れた遊星歯車装置４０が示されている。この遊星
歯車装置４０では、入力軸４２に太陽歯車４４が
固着され、太陽歯車４４の歯面４４Ａに遊星歯車
４６ががみ合つている。また、入力軸４２及び太
陽歯車４４と同軸的にリング形状の内歯歯車４８
が固定配置され、遊星歯車４６とかみ合つてい
る。
FIG. 3 shows a planetary gear device 40 to which the lubricating oil passage structure of the present invention is applied. In this planetary gear device 40, a sun gear 44 is fixed to an input shaft 42, and a planetary gear 46 is engaged with a tooth surface 44A of the sun gear 44. Further, a ring-shaped internal gear 48 is coaxially connected to the input shaft 42 and the sun gear 44.
is fixedly arranged and meshed with the planetary gear 46.
遊星歯車４６はニードル軸受５０を介してシヤ
フト５２へ軸支され、シヤフトの両端はキヤリア
５４へ一体的に連結されている。キヤリア５４は
入力軸５２へ回転可能に支持され、入力軸５２の
半径方向へアーム状に延びると共に図示してない
がキヤリア５４の他端は出力側へ連結されてい
る。従つて、エンジンからの動力はトルクコンバ
ータを経て入力軸４２へ入り、太陽歯車４４、遊
星歯車４６、キヤリア５４を通じて出力側、即
ち、駆動車輪へと伝達される。 The planetary gear 46 is pivotally supported by a shaft 52 via a needle bearing 50, and both ends of the shaft are integrally connected to a carrier 54. The carrier 54 is rotatably supported by the input shaft 52, extends in the radial direction of the input shaft 52 in the form of an arm, and, although not shown, the other end of the carrier 54 is connected to the output side. Therefore, power from the engine enters the input shaft 42 through the torque converter, and is transmitted to the output side, ie, the drive wheels, through the sun gear 44, the planet gears 46, and the carrier 54.
また、遊星歯車装置４０にはバンドブレーキ及
び多板クラツチが接続されていて、これらを油圧
制御機構にて適宜組合わせることにより種々の変
速比が得られるようになつている。 Further, a band brake and a multi-plate clutch are connected to the planetary gear system 40, and various speed ratios can be obtained by appropriately combining these with a hydraulic control mechanism.
次にこの遊星歯車装置４０の潤滑油通路につい
て説明する。入力軸４２には軸方向に沿つて中空
部５６が形成され、油圧制御装置（図示せず）か
ら所定の油圧に調整された潤滑油が矢印方向へ供
給されるようになつている。入力軸４２には環状
溝５８Ａとこれに連通する半径方向通路５８Ｂが
穿設され、また、キヤリア５４にもこの環状溝５
８Ａと連通する通路６０が形成されている。この
ためキヤリア５４が入力軸４２と相対回転しても
環状溝５８Ａと通路６０は常に通じている。この
通路６０はシヤフト５２の軸方向通路６２へ接続
され、軸方向通路６２の中間部には半径方向へ通
路６４が設けられてニードル軸受５０及び遊星歯
車４６側へ開口している。通路６０及び軸方向通
路６２の開口端は、ピン６６及びピン６８によつ
て閉塞されている。 Next, the lubricating oil passage of this planetary gear device 40 will be explained. A hollow portion 56 is formed in the input shaft 42 along the axial direction, and lubricating oil adjusted to a predetermined oil pressure is supplied from a hydraulic control device (not shown) in the direction of the arrow. The input shaft 42 has an annular groove 58A and a radial passage 58B communicating with the annular groove 58A, and the carrier 54 also has an annular groove 58A.
A passage 60 communicating with 8A is formed. Therefore, even if the carrier 54 rotates relative to the input shaft 42, the annular groove 58A and the passage 60 always communicate with each other. This passage 60 is connected to an axial passage 62 of the shaft 52, and a passage 64 is provided in the radial direction in the middle of the axial passage 62 and opens toward the needle bearing 50 and the planetary gear 46. The open ends of the passage 60 and the axial passage 62 are closed by pins 66 and 68.
従つて、中空部５６内で加圧された潤滑油は半
径方向通路５８Ｂ、環状溝５８Ａ、通路６０、軸
方向通路６２、通路６４を通つてニードル軸受５
０及び遊星歯車４６の潤滑作用を行なう。 Therefore, the lubricating oil pressurized within the hollow portion 56 passes through the radial passage 58B, the annular groove 58A, the passage 60, the axial passage 62, and the passage 64 to the needle bearing 5.
0 and the planetary gear 46.
一方、キヤリア５４の通路６０には通路７０が
直交状態で連通し、通路７０は太陽歯車４４の歯
面４４Ａ側へ開口している。このため、通路６０
内の潤滑油の一部は通路７０を通つて太陽歯車４
４の潤滑作用を行なうこととなる。歯面４４Ａへ
供給される潤滑油は遠心力をあまり利用できない
ため、強制的に潤滑油が歯面４４Ａへ噴出するよ
うに油圧を設定するのが望ましい。 On the other hand, a passage 70 orthogonally communicates with the passage 60 of the carrier 54, and the passage 70 opens toward the tooth surface 44A of the sun gear 44. For this reason, the passage 60
A portion of the lubricating oil inside passes through the passage 70 to the sun gear 4.
This results in the lubrication action of step 4. Since the lubricating oil supplied to the tooth surface 44A cannot make much use of centrifugal force, it is desirable to set the oil pressure so that the lubricating oil is forcibly ejected to the tooth surface 44A.
この構成により太陽歯車４４自体の潤滑油通路
が不要となるので、従来のような太陽歯車４４の
強度低下を防止することができる。また、太陽歯
車４４のサイズが小さくても通路形成が難作業と
なることはない、更に、従来の遊星歯車用潤滑油
通路を大幅に利用しているから、新たな通路の穿
孔作業がわずかで尚、上記実施例と動力伝達経路
の異なる遊星歯車機構にも本考案は適用可能であ
る。 This configuration eliminates the need for a lubricating oil passage in the sun gear 44 itself, making it possible to prevent the strength of the sun gear 44 from decreasing as in the prior art. In addition, even if the size of the sun gear 44 is small, forming the passage does not become a difficult task.Furthermore, since the conventional lubricating oil passage for planetary gears is extensively used, there is only a small amount of drilling work required for a new passage. Incidentally, the present invention is also applicable to a planetary gear mechanism having a power transmission path different from that of the above embodiment.
叙上の如く、本考案の潤滑油通路構造では、キ
ヤリアに形成された遊星歯車用潤滑油通路を途中
で分岐させ、その出口を太陽歯車の歯面側へ開口
させて潤滑油の一部を歯面へ噴出させる構成にし
たから、太陽歯車自体の潤滑油通路を省略するこ
とができ、従つて太陽歯車の寿命を向上させるこ
とができる。
As mentioned above, in the lubricating oil passage structure of the present invention, the lubricating oil passage for the planetary gear formed in the carrier is branched in the middle, and the outlet is opened toward the tooth surface side of the sun gear, so that a part of the lubricating oil is released. Since the lubricating oil is ejected onto the tooth surface, the lubricating oil passage of the sun gear itself can be omitted, and the life of the sun gear can therefore be improved.
第１図は従来の遊星歯車装置における潤滑油通
路構造を示す縦断面図、第２図は第１図−線
に沿う断面図、第３図は本考案の潤滑油通路構造
が適用された遊星歯車装置の縦断面図、第４図は
第３図−線に沿う断面図である。
４０……遊星歯車装置、４２……入力軸、４４
……太陽歯車、４４Ａ……歯面、４６……遊星歯
車、５４……キヤリア、５６……中空部、５８Ａ
……環状溝、５８Ｂ……半径方向通路、６０，７
０……通路。
Fig. 1 is a longitudinal sectional view showing a lubricating oil passage structure in a conventional planetary gear device, Fig. 2 is a sectional view taken along the line shown in Fig. 1, and Fig. 3 is a planetary gear to which the lubricating oil passage structure of the present invention is applied. A vertical cross-sectional view of the gear device, FIG. 4 is a cross-sectional view taken along the line of FIG. 3. 40... Planetary gear device, 42... Input shaft, 44
... Sun gear, 44A ... Tooth surface, 46 ... Planet gear, 54 ... Carrier, 56 ... Hollow part, 58A
...Annular groove, 58B...Radial passage, 60,7
0...Aisle.
Claims (1)
油通路構造において、キヤリアに形成された遊星
歯車用潤滑油通路を途中で分岐させ、その出口を
太陽歯車の歯面側へ開口させたことを特徴とする
遊星歯車装置の潤滑油通路構造。 In the lubricating oil passage structure of a planetary gear device used in automatic transmissions, etc., the lubricating oil passage for the planetary gear formed in the carrier is branched in the middle, and its outlet is opened toward the tooth surface side of the sun gear. Lubricating oil passage structure of a planetary gear system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20482783U JPS60112747U (en) | 1983-12-29 | 1983-12-29 | Lubricating oil passage structure of planetary gear system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20482783U JPS60112747U (en) | 1983-12-29 | 1983-12-29 | Lubricating oil passage structure of planetary gear system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60112747U JPS60112747U (en) | 1985-07-30 |
| JPS632693Y2 true JPS632693Y2 (en) | 1988-01-22 |
Family
ID=30767214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20482783U Granted JPS60112747U (en) | 1983-12-29 | 1983-12-29 | Lubricating oil passage structure of planetary gear system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60112747U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101047753B1 (en) | 2008-12-02 | 2011-07-07 | 현대자동차주식회사 | Carrier of automatic transmission |
| SE541311C2 (en) * | 2017-10-13 | 2019-06-25 | Scania Cv Ab | Lubrication system for a planetary gear |
-
1983
- 1983-12-29 JP JP20482783U patent/JPS60112747U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60112747U (en) | 1985-07-30 |
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