JP3326916B2 - Lubrication device for extension housing bearing of automatic transmission - Google Patents
Lubrication device for extension housing bearing of automatic transmissionInfo
- Publication number
- JP3326916B2 JP3326916B2 JP27114493A JP27114493A JP3326916B2 JP 3326916 B2 JP3326916 B2 JP 3326916B2 JP 27114493 A JP27114493 A JP 27114493A JP 27114493 A JP27114493 A JP 27114493A JP 3326916 B2 JP3326916 B2 JP 3326916B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- extension housing
- bearing
- automatic transmission
- output shaft
- 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
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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動変速機のエクステ
ンションハウジング軸受の潤滑装置に関し、特に、自動
変速機の車両搭載作業時における作動油の洩れを防ぐ潤
滑装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating device for an extension housing bearing of an automatic transmission, and more particularly to a lubricating device for preventing leakage of hydraulic oil when the automatic transmission is mounted on a vehicle.
【０００２】[0002]
【従来の技術】従来、自動変速機の変速機構を収容する
トランスミッションケースには、変速機構の出力軸を収
容するエクステンションハウジングが連結されている。
そして、自動変速機の車載時には、上記出力軸をプロペ
ラシャフトに連結すべく、該シャフトに連結するユニバ
ーサルジョイントのスリーブヨークが上記エクステンシ
ョンハウジングの開口から挿入され、出力軸にスプライ
ン嵌合で連結される。この状態で、出力軸はスリーブヨ
ークを介してエクステンションハウジングの後部に配設
された軸受ブッシュに支持される。2. Description of the Related Art Conventionally, an extension housing that houses an output shaft of a transmission mechanism is connected to a transmission case that houses a transmission mechanism of an automatic transmission.
When the automatic transmission is mounted on a vehicle, a sleeve yoke of a universal joint connected to the output shaft is inserted through an opening of the extension housing to connect the output shaft to a propeller shaft, and is connected to the output shaft by spline fitting. . In this state, the output shaft is supported by the bearing bush provided at the rear of the extension housing via the sleeve yoke.
【０００３】このように、軸受ブッシュとスリーブヨー
クとの摺動部並びに出力軸とスリーブヨークのスプライ
ン嵌合部は、自動変速機の最後部に位置するため、潤滑
不足となりがちである。そこで、これらの部分への十分
な潤滑油の供給を可能とすべく、図４に示すように、エ
クステンションハウジング０３に油溜Ｐを形成する提案
がなされている（特開昭６０−１２１３６４号公報及び
特開昭６０−１３９９７１号公報参照）。これらの提案
において、油溜Ｐは、エクステンションハウジング０３
の上記開口０３１から内方に延びるハウジング０３と一
体化された樋０３２と、該樋０３２の内端に固定され、
出力軸０２の軸周を囲む環状の堰板０６とで画定されて
いる。こうした構成を採ると、潤滑油路から供給された
作動油は、樋０３２の堰板０６とオイルシール０７との
間に溜められて、軸受ブッシュ０４とスリーブヨーク０
８との摺動部並びに出力軸０２とスリーブヨーク０８の
スプライン嵌合部への十分な潤滑油の供給が可能とな
る。As described above, since the sliding portion between the bearing bush and the sleeve yoke and the spline fitting portion between the output shaft and the sleeve yoke are located at the rearmost portion of the automatic transmission, the lubrication tends to be insufficient. Therefore, in order to enable a sufficient supply of lubricating oil to these portions, a proposal has been made to form an oil reservoir P in the extension housing 03 as shown in FIG. 4 (Japanese Patent Application Laid-Open No. 60-121364). And JP-A-60-139971). In these proposals, the oil sump P is connected to the extension housing 03
A gutter 032 integrated with a housing 03 extending inward from the opening 031 of the above, and fixed to an inner end of the gutter 032,
An annular weir plate 06 surrounding the circumference of the output shaft 02 is defined. With this configuration, the hydraulic oil supplied from the lubricating oil passage is stored between the dam plate 06 of the gutter 032 and the oil seal 07, and the bearing bush 04 and the sleeve yoke 0
Sufficient lubricating oil can be supplied to the sliding portion of the sleeve 8 and the spline fitting portion of the output shaft 02 and the sleeve yoke 08.
【０００４】ところで、車載前の組立て済みの自動変速
機は、作動油の注入を完了して出荷されるため、車両組
立て工場での車両への搭載までの搬送時における作動油
の洩れ、塵の侵入等を防ぎ、且つ出力軸を保護すべく、
上記スリーブヨーク０８に代わる搬送用のシッピングキ
ャップをスリーブヨーク０８を挿通する開口０３１に嵌
挿される。By the way, the assembled automatic transmission before being mounted on the vehicle is shipped after completing the injection of the hydraulic oil, so that the hydraulic oil leaks and dusts at the time of transport to the mounting on the vehicle at the vehicle assembly factory. In order to prevent intrusion etc. and to protect the output shaft,
A shipping shipping cap that replaces the sleeve yoke 08 is inserted into the opening 031 through which the sleeve yoke 08 is inserted.
【０００５】[0005]
【発明が解決しようとする課題】エクステンションハウ
ジング０３に上記提案に係るような油溜Ｐを設けた場
合、荷積み、搬送、積替え時の振動、傾斜等で油溜Ｐに
作動油が流込むことがある。こうして流込んだ油は、前
記堰板０６に遮られて、油溜Ｐから排出されないため、
図５に示すように車両組立工場でシッピングキャップ０
９を抜取るときに、開口０３１に嵌装されたオイルシー
ル０７を越えてダストカバー０１０へ流れ出る油たれを
発生する。こうしてダストカバー０１０に付着した油
は、通常行われる車両組立て後の洗浄をもってしても取
去ることができないことが多く、市場において、ダスト
カバー０１０への油の付着がオイルシール０７の欠損等
による油洩れと誤認されて、正常なオイルシール０７の
交換を余儀なくされる。このように、十分な潤滑油量の
確保と油たれの回避とは、相容れない解決困難な問題点
を含んでいる。When the oil sump P according to the above proposal is provided in the extension housing 03, the hydraulic oil flows into the oil sump P due to vibration, inclination, etc. at the time of loading, transportation, and transshipment. There is. The oil thus poured is blocked by the weir plate 06 and is not discharged from the oil reservoir P.
As shown in FIG.
9 is removed, oil dripping out of the oil cover 07 fitted to the opening 031 and flowing to the dust cover 010 is generated. In many cases, oil adhering to the dust cover 010 cannot be removed even by washing after vehicle assembly, which is usually performed. It is erroneously recognized as an oil leak and the normal oil seal 07 must be replaced. Thus, securing a sufficient amount of lubricating oil and avoiding oil drips include incompatible and difficult problems to be solved.
【０００６】本発明は上記のような事情に鑑み案出され
たものであり、搬送時には油溜への油の貯留を防止し、
稼働時には潤滑に十分な油の貯留を可能とする自動変速
機のエクステンションハウジング軸受の潤滑装置を提供
することを目的とする。The present invention has been devised in view of the above circumstances, and prevents the accumulation of oil in an oil sump during transportation.
It is an object of the present invention to provide a lubricating device for an extension housing bearing of an automatic transmission that can store sufficient oil for lubrication during operation.
【０００７】[0007]
【課題を解決するための手段】上記の課題を解決するた
め、本発明は、変速機構を収容するトランスミッション
ケースに取付けられ、前記変速機構から延びる出力軸を
収容するエクステンションハウジングと、該エクステン
ションハウジング内に前記出力軸に嵌合するスリーブヨ
ークを挿通する開口と、前記エクステンションハウジン
グ内でスリーブヨークを支持する軸受と、前記トランス
ミッションケース内を循環する作動油を前記軸受に供給
する潤滑油路と、該潤滑油路を経て供給された作動油を
前記軸受近傍に貯留する油溜と、該油溜からの作動油の
流出を規制して前記油溜内の油面を所定のレベルに保つ
油溜堰とを有する自動変速機において、前記油溜堰に作
動油の単位時間当たり供給油量に満たない排出油量の排
出孔を形成したことを構成とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to an extension housing which is attached to a transmission case which houses a transmission mechanism and houses an output shaft extending from the transmission mechanism, and an extension housing inside the extension housing. An opening through which a sleeve yoke that fits into the output shaft is inserted, a bearing that supports the sleeve yoke in the extension housing, a lubricating oil passage that supplies hydraulic fluid circulating in the transmission case to the bearing, An oil reservoir for storing hydraulic oil supplied through a lubricating oil passage in the vicinity of the bearing; and an oil reservoir for regulating the outflow of hydraulic oil from the oil reservoir to maintain an oil level in the oil reservoir at a predetermined level. In the automatic transmission having an oil reservoir, the oil sump is provided with a discharge hole having a discharge oil amount less than a supply oil amount per unit time of the hydraulic oil. It is referred to as configuration.
【０００８】[0008]
【発明の作用及び効果】このような構成を採った本発明
では、潤滑油路からの正規の作動油供給がない搬送時に
は、たまたま該油路又は他の経路から油溜に作動油が流
込んだとしても、作動油は油溜堰に形成した排出孔から
流出して、油溜に残留することがない。そして、車載後
の稼働時に正規の量の作動油供給がなされると、作動油
の油溜からの流出は、油溜堰に設けられた単位時間当た
り供給油量に満たない排出油量の排出孔に規制されるた
め、油溜に所定のレベルを保つ作動油の貯留がなされ
る。According to the present invention having the above-described structure, during the transportation without the normal supply of the hydraulic oil from the lubricating oil passage, the operating oil accidentally flows into the oil reservoir from the oil passage or another passage. Even so, the hydraulic oil does not flow out of the discharge hole formed in the oil sump and remains in the oil sump. When a normal amount of hydraulic oil is supplied during operation after the vehicle is mounted, the outflow of hydraulic oil from the oil sump causes a discharge of an amount of discharged oil less than the oil supply per unit time provided in the oil sump. Since the oil is restricted by the holes, the hydraulic oil is stored in the oil reservoir at a predetermined level.
【０００９】したがって、本発明の潤滑装置によれば、
車両への搭載のための作業時における自動変速機のエク
ステンションハウジング開口からの油たれを防止し、そ
れによる誤った故障判断を回避することができるように
しながら、車両への搭載後の運転時の自動変速機のエク
ステンションハウジング軸受及びその近傍の潤滑油量の
確保を可能とすることができる。Therefore, according to the lubricating device of the present invention,
During operation for mounting on the vehicle, oil leakage from the opening of the extension housing of the automatic transmission can be prevented, and erroneous failure judgment can be avoided. It is possible to secure the amount of lubricating oil in and near the extension housing bearing of the automatic transmission.
【００１０】[0010]
【実施例】以下、本発明を、実施例を表す図面を参照し
ながら説明する。図１に示すように、全体構成の図示を
省略する自動変速機１は、変速機構を収容する図示しな
いトランスミッションケースに取付けられ、変速機構か
ら延びる出力軸２を収容するエクステンションハウジン
グ３と、エクステンションハウジング３内に出力軸２に
嵌合するスリーブヨーク８（稼働状態を示す図３参照）
を挿通する開口３１と、エクステンションハウジング３
内でスリーブヨーク８を支持する軸受４（本例において
ブッシュ４０）と、トランスミッションケース内を循環
する作動油を軸受４に供給する潤滑油路５（本例におい
て給油パイプ５０）と、潤滑油路５を経て供給された作
動油を軸受４近傍に貯留する油溜Ｐと、油溜Ｐからの作
動油の流出を規制して油溜Ｐ内の油面Ｌ（稼働状態を示
す図３参照）を所定のレベルに保つ油溜堰６（本例にお
いて堰板６０）とを有する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing embodiments. As shown in FIG. 1, an automatic transmission 1 whose overall configuration is not shown is attached to a transmission case (not shown) that houses a transmission mechanism, and an extension housing 3 that houses an output shaft 2 that extends from the transmission mechanism, and an extension housing. A sleeve yoke 8 fitted into the output shaft 2 in 3 (see FIG. 3 showing an operating state)
And the extension housing 3
A bearing 4 (in this example, a bush 40) for supporting a sleeve yoke 8 therein, a lubricating oil passage 5 (in this example, an oil supply pipe 50) for supplying hydraulic oil circulating in the transmission case to the bearing 4, and a lubricating oil passage An oil reservoir P for storing the hydraulic oil supplied through the oil reservoir 5 near the bearing 4 and an oil level L in the oil reservoir P by restricting the outflow of the hydraulic oil from the oil reservoir P (see FIG. 3 showing the operating state). And an oil sump 6 (in this example, a weir plate 60) for keeping the pressure at a predetermined level.
【００１１】本発明に係る潤滑装置は、さらに、本発明
の主題に従い、油溜堰６に作動油の単位時間当たり供給
油量Ｑｓに満たない排出油量Ｑｄ（稼働状態を示す図３
参照）の排出孔６１が形成されている。In accordance with the subject of the present invention, the lubricating apparatus according to the present invention further supplies the oil sump 6 with a discharge oil amount Qd less than the supply oil amount Qs per unit time (see FIG.
(See FIG. 2).
【００１２】さらに各部について、詳細に説明すると、
エクステンションハウジング３は、アルミ合金鋳造品と
され、トランスミッションケースに連結される側（図に
おいて左側、以下、説明の便宜上、左側を前、右側を後
と表現する）から後側に向かって順次縮径された外壁３
０と、外壁３０の後側から前向きに延びる内壁３２とを
有し、さらに、外壁３０の最後部は、オイルシール７の
収容空間を確保すべく拡径されている。内壁３２は、出
力軸２と同心の半円筒形の樋状に構成され、その内周面
が油溜Ｐの周壁を画定する。この例では、さらに内壁３
２の下方内面が途中から前下がりに傾斜した周壁とされ
ており、この傾斜内周面Ｔが排出孔６１のレベル下の溜
り油の最終的な集合部とされ、溜り油の後方への流動を
妨げる機能を果たしている。なお、図において、符号９
はプラスチックモールド品のシッピングキャップ、１０
は外壁３０の後端外周に嵌挿された薄鋼板プレス品のダ
ストカバーを示す。Further, each part will be described in detail.
The extension housing 3 is made of an aluminum alloy casting, and is sequentially reduced in diameter from the side connected to the transmission case (left side in the drawing, the left side is referred to as front, and the right side is referred to as rear for convenience of description). Exterior wall 3
0, and an inner wall 32 extending forward from the rear side of the outer wall 30, and the rear end of the outer wall 30 is enlarged in diameter to secure a housing space for the oil seal 7. The inner wall 32 is formed in a semi-cylindrical gutter shape concentric with the output shaft 2, and an inner peripheral surface thereof defines a peripheral wall of the oil reservoir P. In this example, the inner wall 3
The lower inner surface 2 is formed as a peripheral wall inclined forward and downward from the middle, and the inclined inner peripheral surface T is a final gathering portion of accumulated oil below the level of the discharge hole 61, and the accumulated oil flows backward. Plays the function of hindering. In the figure, reference numeral 9 is used.
Are the shipping caps of plastic molded products, 10
Denotes a dust cover of a thin steel sheet pressed product fitted on the outer periphery of the rear end of the outer wall 30.
【００１３】出力軸２は、エクステンションハウジング
３を全通して延び、開口３１から若干突出してダストカ
バー１０内で終端している。出力軸２の後半部には、軸
長の略半分の長さにわたって外周スプライン歯２１が形
成され、これが図３に示すスリーブヨーク８の内周スプ
ライン歯８１と噛合する連結部を構成する。なお、図に
おいて、符号１１は、出力軸２にボール１２で回止め連
結されたスピードメータギヤ、１３は出力軸２にキー１
４で回止め連結された電子式車速センサ、２３はこれら
の連結部に作動油を供給する潤滑油孔を示す。The output shaft 2 extends through the extension housing 3, slightly projects from the opening 31, and terminates in the dust cover 10. In the rear half of the output shaft 2, outer peripheral spline teeth 21 are formed over substantially half the length of the shaft, and these constitute a connecting portion that meshes with the inner peripheral spline teeth 81 of the sleeve yoke 8 shown in FIG. 3. In the drawing, reference numeral 11 denotes a speedometer gear that is connected to the output shaft 2 by rotation prevention with a ball 12, and 13 denotes a key 1 on the output shaft 2.
An electronic vehicle speed sensor 23 which is detented and connected at 4 indicates a lubricating oil hole for supplying hydraulic oil to these connections.
【００１４】軸受４を構成するブッシュ４０は、適宜の
軸受材料で構成され、エクステンションハウジング３の
外壁３０の最小径部に嵌挿されている。ブッシュ４０の
内周面には適宜の形状の導油溝４１が形成されている。A bush 40 constituting the bearing 4 is made of an appropriate bearing material, and is fitted into a minimum diameter portion of the outer wall 30 of the extension housing 3. An oil guide groove 41 having an appropriate shape is formed on the inner peripheral surface of the bush 40.
【００１５】トランスミッションケース内を循環する作
動油を軸受４に供給する潤滑油路５は、この例では、適
宜の軟質金属材料からなる給油パイプ５０とされてお
り、その前端はトランスミッションケースとの連結部を
密封するパッキン１５に嵌挿してエクステンションハウ
ジング３の前下方の溝内に固定され、中間部を出力軸２
との干渉を避けて迂回させて堰板６０の孔６２に挿通支
持され、他端をエクステンションハウジング３外壁３０
の溝内に差込まれて保持されている。給油パイプ５０の
後端には、作動油の供給流量を制御するオリフィス５１
が形成されている。The lubricating oil passage 5 for supplying the working oil circulating in the transmission case to the bearing 4 is, in this example, an oil supply pipe 50 made of a suitable soft metal material, and its front end is connected to the transmission case. The extension part 3 is inserted into a packing 15 for sealing, and is fixed in a groove below the front of the extension housing 3.
And is detoured so as to avoid interference with the damper plate 60 and is inserted into and supported by the hole 62 of the weir plate 60.
And is inserted and held in the groove. At the rear end of the oil supply pipe 50, an orifice 51 for controlling the supply flow rate of hydraulic oil is provided.
Are formed.
【００１６】図２に示すように、堰板６０は、出力軸２
を挿通する中心孔６３と、給油パイプ５０の挿通孔６２
を打抜き成形され、周縁を軸線方向に折曲げて補強フラ
ンジ６４とした金属板のプレス成形品からなる環状に構
成されており、油溜Ｐを構成する内壁３２の段部に嵌合
されて、油溜Ｐの前端側を画定している。本発明の主題
に従い、堰板６０の下方部の最外周側に補強フランジ６
４に近接して形成された排出孔６１は、上記オリフィス
５１の口径との関係で、その単位時間当たり供給油量Ｑ
ｓに満たない排出油量Ｑｄ（図３参照）となるような口
径の軸方向孔とされている。As shown in FIG. 2, the dam plate 60 is connected to the output shaft 2.
Through the center hole 63 through which the oil supply pipe 50 is inserted.
Is formed into a ring shape by pressing a metal plate to form a reinforcing flange 64 by bending the periphery in the axial direction, and is fitted to the step of the inner wall 32 constituting the oil reservoir P, The front end side of the sump P is defined. In accordance with the subject of the present invention, a reinforcing flange 6
The discharge hole 61 formed in the vicinity of the orifice 4 has an oil supply amount Q per unit time in relation to the diameter of the orifice 51.
It is an axial hole having a diameter such that the discharged oil amount Qd less than s (see FIG. 3).
【００１７】かく構成された潤滑装置を備える自動変速
機１は、図１に示す状態で出荷、搬送される。したがっ
て、図示のような水平状態で作動油が油溜Ｐに流込むこ
とはないが、荷積み時の傾斜、搬送中の振動等により給
油パイプ５０を経て、あるいはエクステンションハウジ
ング３の外壁３０底部及び内壁３２を伝って、堰板６０
の中心孔６３を越えて、直接作動油が油溜Ｐに流込むこ
とがある。こうした場合、一旦油溜Ｐ内に作動油が溜ま
るが、溜まった作動油は、自動変速機が通常の水平状態
に戻されたときに、本発明に従い堰板６０に形成された
排出孔６１から再びエクステンションハウジング３の底
部に排出される。この作用で、油溜Ｐ内に残留する作動
油の油面は図１に想像線で示すように極めて低くなり、
微量の作動油が残留するだけとなる。The automatic transmission 1 having the lubricating device thus configured is shipped and transported in the state shown in FIG. Therefore, the hydraulic oil does not flow into the oil sump P in the horizontal state as shown in the figure, but the inclination at the time of loading, the vibration during transportation, etc., causes the oil to pass through the oil supply pipe 50 or the bottom of the outer wall 30 of the extension housing 3 and the bottom. Along the inner wall 32, the weir plate 60
In some cases, the operating oil directly flows into the oil reservoir P beyond the center hole 63 of the oil reservoir. In such a case, the hydraulic oil temporarily accumulates in the oil reservoir P, and the accumulated hydraulic oil is discharged from the discharge hole 61 formed in the dam plate 60 according to the present invention when the automatic transmission is returned to the normal horizontal state. It is discharged to the bottom of the extension housing 3 again. By this action, the oil level of the hydraulic oil remaining in the oil reservoir P becomes extremely low as shown by the imaginary line in FIG.
Only a small amount of hydraulic oil remains.
【００１８】こうした状態で、車両への搭載のためにシ
ッピングキャップ９が抜き去られても、油溜Ｐ内に残留
する作動油は微量であるため、これがブッシュ４０を越
えて後方に流れたとしても、ブッシュ４０の後方のエク
ステンションハウジング３の拡径部とオイルシール７と
で画定される空間Ｓに流込むだけで、オイルシール７の
シールリップ７１を越えて開口３１から外へ流出ること
はない。こうした流出の阻止は、たとえ自動変速機がか
なり後下がりの姿勢、極端な場合約４０度程度の傾斜状
態とされても達成される。In this state, even if the shipping cap 9 is pulled out for mounting on a vehicle, the amount of hydraulic oil remaining in the oil reservoir P is very small. Also, by merely flowing into the space S defined by the enlarged diameter portion of the extension housing 3 behind the bush 40 and the oil seal 7, it may not flow out of the opening 31 beyond the seal lip 71 of the oil seal 7. Absent. This prevention of the outflow can be achieved even if the automatic transmission is in a considerably downwardly inclined posture, in an extreme case, about 40 degrees.
【００１９】作業が進められ、図３に示すように開口３
１内にスリーブヨーク８が挿入される。スリーブヨーク
８はその内周に形成されたスプライン歯８１を出力軸２
の外周スプライン歯２１に嵌合して挿入され、スリーブ
ヨーク８の外周はブッシュ４０の内周に嵌合され、それ
を介してエクステンションハウジング３に支持される。The operation proceeds, and as shown in FIG.
The sleeve yoke 8 is inserted into the inside 1. The sleeve yoke 8 is connected to the spline teeth 81 formed on the inner periphery of the output shaft 2.
The outer periphery of the sleeve yoke 8 is fitted to the inner periphery of the bush 40, and is supported by the extension housing 3 via the bush 40.
【００２０】車載を終わった自動変速機の稼働中、即ち
オイルポンプ稼働による油圧発生時は、作動油の供給が
トランスミッションケースから給油パイプ５０を経てな
されるようになり、所期の単位時間当たり流量Ｑｓの作
動油がオリフィス５１からブッシュ４０の上部に噴出す
る。こうした作動油の供給が行われると、作動油は、ブ
ッシュ４０の内外周、スリーブヨーク８の外周、出力軸
２の外周を経て油溜Ｐ内に流込み、前端側を堰板６０、
周面を内壁３２、後端側をオイルシール７のシールリッ
プ７１で規制されて油溜Ｐ内に溜まる。このとき、堰板
６０の排出孔６１からの単位時間当たり排出流量Ｑｄ
は、前記のように供給油量Ｑｓより少ないので、油溜Ｐ
の油面Ｌは図に示すレベルに保たれ、軸受摺動部とスプ
ライン嵌合部の潤滑が良好に保たれる。During the operation of the automatic transmission after the vehicle is mounted, that is, when the oil pressure is generated by the operation of the oil pump, the hydraulic oil is supplied from the transmission case through the oil supply pipe 50, and the desired flow rate per unit time is obtained. The hydraulic oil of Qs is ejected from the orifice 51 to the upper part of the bush 40. When such a supply of the hydraulic oil is performed, the hydraulic oil flows into the oil reservoir P via the inner and outer circumferences of the bush 40, the outer circumference of the sleeve yoke 8, and the outer circumference of the output shaft 2, and the front end side of the damper plate 60,
The peripheral surface is regulated by the inner wall 32, and the rear end side is regulated by the seal lip 71 of the oil seal 7 and accumulates in the oil reservoir P. At this time, the discharge flow rate Qd per unit time from the discharge holes 61 of the weir plate 60
Is smaller than the supply oil amount Qs as described above,
The oil level L is maintained at the level shown in the figure, and the lubrication of the bearing sliding portion and the spline fitting portion is well maintained.
【００２１】以上、要するに、本発明の主題に係る上記
実施例における排出孔６１は、油溜Ｐ内の作動油を排出
して残留させないようにし、且つ、油溜Ｐ内の作動油の
排出を規制して所定の油面Ｌレベルを保つ、という合い
反する要求を条件に応じて満たすことができる。In summary, the discharge hole 61 in the above-described embodiment according to the subject of the present invention prevents the hydraulic oil in the oil reservoir P from discharging and remaining, and also discharges the hydraulic oil from the oil reservoir P. Conflicting demands for regulating and maintaining a predetermined oil level L level can be satisfied according to conditions.
【００２２】ところで、上記実施例では、供給油路５を
エクステンションハウジング３とは別体の給油パイプ５
０とし、堰板６０でこれをエクステンションハウジング
３に支持する構成との関係で、組み立ての便を図って堰
板６０をエクステンションハウジング３とは別体として
いるが、供給油路５を特開昭６０−１２１３６４号公報
の提案のように出力軸２に油孔として形成した場合に
は、あるいはそうでない場合でも、エクステンションハ
ウジング３と一体に構成することもできる。こうした構
成を採った場合には、当然ながら排出孔６１は、エクス
テンションハウジング３に直接形成されることになる。In the above embodiment, the supply oil passage 5 is connected to the oil supply pipe 5 separate from the extension housing 3.
0, and the dam plate 60 is made separate from the extension housing 3 for the sake of assembling convenience in relation to the structure in which the dam plate 60 is supported by the extension housing 3. In the case where the output shaft 2 is formed as an oil hole as in the proposal of Japanese Patent Application Laid-Open No. 60-121364, or in the case where the oil hole is not formed, the output shaft 2 may be integrally formed with the extension housing 3. In such a configuration, the discharge hole 61 is formed directly in the extension housing 3 as a matter of course.
【００２３】以上、本発明を特定の自動変速機に適用し
た実施例を基に説明したが、本発明の適用対象はこれに
限るものではなく、また、本発明は、前記実施例を含み
特許請求の範囲の記載内での種々の変更を伴った実施が
可能であることは言うまでもない。Although the present invention has been described based on an embodiment in which the present invention is applied to a specific automatic transmission, the application of the present invention is not limited to this embodiment. It goes without saying that implementation with various changes within the description of the claims is possible.
【図１】本発明の潤滑装置の一実施例を示す自動変速機
後部の軸線方向切断断面図である。FIG. 1 is an axial cross-sectional view of a rear portion of an automatic transmission showing an embodiment of a lubrication device of the present invention.
【図２】上記実施例の堰板の正面図である。FIG. 2 is a front view of the weir plate of the embodiment.
【図３】上記潤滑装置の稼働状態を示す自動変速機後部
の軸方向切断端面図である。FIG. 3 is an axial cut end view of a rear portion of the automatic transmission, showing an operation state of the lubrication device.
【図４】従来の潤滑装置の稼働状態を示す自動変速機後
部の軸方向切断端面図である。FIG. 4 is an axial cross-sectional end view of a rear portion of an automatic transmission showing an operation state of a conventional lubrication device.
【図５】従来の潤滑装置のシッピングキャップの取外し
状態を示す自動変速機後部の軸方向切断端面図である。FIG. 5 is an axially cut end view of a rear portion of the automatic transmission showing a state in which a shipping cap of a conventional lubricating device is removed.
１ 自動変速機 ２ 出力軸 ３ エクステンションハウジング ４ ブッシュ（軸受） ５ 潤滑油供給油路 ６ 油溜堰 ８ スリーブヨーク ９ シッピングキャップ ３１ 開口 ５０ 給油パイプ ６０ 堰板 ６１ 排出孔 Ｐ 油溜 Reference Signs List 1 automatic transmission 2 output shaft 3 extension housing 4 bush (bearing) 5 lubricating oil supply oil passage 6 oil reservoir 8 sleeve yoke 9 shipping cap 31 opening 50 oil supply pipe 60 dam plate 61 discharge hole P oil reservoir
Claims (1)
ケースに取付けられ、前記変速機構から延びる出力軸を
収容するエクステンションハウジングと、該エクステン
ションハウジング内に前記出力軸に嵌合するスリーブヨ
ークを挿通する開口と、前記エクステンションハウジン
グ内でスリーブヨークを支持する軸受と、前記トランス
ミッションケース内を循環する作動油を前記軸受に供給
する潤滑油路と、該潤滑油路を経て供給された作動油を
前記軸受近傍に貯留する油溜と、該油溜からの作動油の
流出を規制して前記油溜内の油面を所定のレベルに保つ
油溜堰とを有する自動変速機において、前記油溜堰に作
動油の単位時間当たり供給油量に満たない排出油量の排
出孔を形成したことを特徴とする自動変速機のエクステ
ンションハウジング軸受の潤滑装置。An extension housing attached to a transmission case accommodating a transmission mechanism and accommodating an output shaft extending from the transmission mechanism; an opening in the extension housing for inserting a sleeve yoke fitted to the output shaft; A bearing that supports a sleeve yoke in the extension housing, a lubricating oil passage that supplies hydraulic oil circulating in the transmission case to the bearing, and a hydraulic oil that is supplied through the lubricating oil passage is stored near the bearing. An oil sump, and an oil sump that regulates outflow of hydraulic oil from the sump to maintain an oil level in the sump at a predetermined level. An extension housing for an automatic transmission, characterized in that a discharge hole having a discharge oil amount less than a supply oil amount per unit time is formed. Bearing lubrication device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27114493A JP3326916B2 (en) | 1993-10-05 | 1993-10-05 | Lubrication device for extension housing bearing of automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27114493A JP3326916B2 (en) | 1993-10-05 | 1993-10-05 | Lubrication device for extension housing bearing of automatic transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07103319A JPH07103319A (en) | 1995-04-18 |
| JP3326916B2 true JP3326916B2 (en) | 2002-09-24 |
Family
ID=17495940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27114493A Expired - Fee Related JP3326916B2 (en) | 1993-10-05 | 1993-10-05 | Lubrication device for extension housing bearing of automatic transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3326916B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4539512B2 (en) * | 2005-09-26 | 2010-09-08 | トヨタ自動車株式会社 | Method for manufacturing drive device using protective cap |
| JP4848775B2 (en) * | 2006-01-11 | 2011-12-28 | コベルコ建機株式会社 | Power transmission device |
| DE102010052310B4 (en) | 2010-11-17 | 2014-08-07 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | shaft assembly |
| JP6309364B2 (en) * | 2014-06-27 | 2018-04-11 | ダイハツ工業株式会社 | Disassembly and assembly jig for vehicle drive system |
-
1993
- 1993-10-05 JP JP27114493A patent/JP3326916B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07103319A (en) | 1995-04-18 |
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