JP3661799B2 - Lubricator for one-way clutch - Google Patents

Lubricator for one-way clutch Download PDF

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JP3661799B2
JP3661799B2 JP07738195A JP7738195A JP3661799B2 JP 3661799 B2 JP3661799 B2 JP 3661799B2 JP 07738195 A JP07738195 A JP 07738195A JP 7738195 A JP7738195 A JP 7738195A JP 3661799 B2 JP3661799 B2 JP 3661799B2
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Prior art keywords
ring
way clutch
oil
gear
inner ring
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JPH08247264A (en
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聡史 藤原
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Koyo Seiko Co Ltd
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Koyo Seiko Co Ltd
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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/069—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by pivoting or rocking, e.g. sprags
    • F16D41/07—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by pivoting or rocking, e.g. sprags between two cylindrical surfaces
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D2041/0601—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with a sliding bearing or spacer

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Description

【０００１】
【産業上の利用分野】
この発明は、例えば自動車の自動変速装置の一方向クラッチを潤滑するための装置、より詳しくは遠心力を利用して一方向クラッチの内部を十分に潤滑することのできる回転部材を備えた一方向クラッチの潤滑装置に関する。
【０００２】
【従来の技術】
図７は自動車の自動変速機構内部の潤滑構造を示す一部断面図である。
この自動変速機構の中央部には入力軸１から各段における回転を最終的に取り出すカウンタドライブギヤ２が配置されている。該カウンタドライブギヤ２の内周はキャリヤ３とスプライン嵌合され、外周はトランスアクスルケ−ス４の円筒部４ａに軸受５を介して回転自在に支持されている。そして該トランスアクスルケ−ス４の円筒部４ａの外周面には一方向クラッチ６の内輪６ｂがスプライン嵌合されて固定状態に置かれ、該一方向クラッチ６の外輪６ａはプラネタリギヤユニットのリングギヤ７と一体に回転するようになっている。８は前記リングギヤの外周とアクスルハウジング４との間に介在させたディスクブレ−キであってピストン９によりブレ−キの係合と解放が行われる。前記リングギヤ７の内周面には前記一方向クラッチ６を潤滑するための潤滑油送り込みプレ−ト１０が圧入されており、潤滑油は前記入力軸１の油孔１ａ、中空軸１１の油孔１１ａ、キャリヤ３の油孔３ａ、カウンタドライブギヤ２の切欠を経て遠心力により送り出して飛散させ、該飛散させた潤滑油は前記潤滑油送り込みプレ−ト１０により集められ前記一方向クラッチ６に導くと共に、該潤滑油送り込みプレ−ト１０に付着した潤滑油は更に一方向クラッチ６内部に送り込む圧力を発生させている（特開昭６３−２７５８５４号）。
【０００３】
【発明が解決しようとする課題】
自動変速装置内部での一方向クラッチ６の潤滑は、通常内輪６ｂ側からの強制潤滑または内輪回転の遠心力により給油することによって行われる。しかし軌道径が大きく、特に内輪６ｂが固定されている場合は強制給油路を設けるのが難しく且つ内輪からの遠心力による給油は期待できない。その結果潤滑油不足となりエンドベアリング等に焼付等のトラブルが発生しやすい。
【０００４】
従来の潤滑装置でも、図８に示すように、矢印Ａのル−トで潤滑した場合、潤滑油送り込みプレ−ト１０の回転によりＰ部分に油圧を発生させて給油させるが、長時間運転すると昇温によりエンドベアリング６ｃと内輪６ｂとの隙間が小さくなり、給油が困難となり、その結果焼付が発生する。即ち、エンドベアリング６ｃの材質は熱膨張係数が大きく薄いため熱変形量がおおきくエンドベアリング６ｃと内輪６ｂとの隙間が小さくなりやすい。
また、内輪６ｂに給油用の孔６ｅを設けた場合、空間Ｑが大きく開いているため油圧が発生しにくく該内輪６ｂの給油用の孔６ｅからの給油は難しい。
【０００５】
この発明は上記する課題に着目してなされたものであり、内輪が固定されている場合でも簡単な装置で一方向クラッチへの潤滑油を十分に供給することが可能でエンドベアリング等の焼付を防止することのできる一方向クラッチの潤滑装置を提供することを目的とする。
【０００６】
【課題を解決するための手段】
即ち、この発明は上記する課題を解決するために、一方向クラッチの潤滑装置が、▲１▼外輪はリングギヤ等の回転部材に嵌着し内輪はトランスアクスルケ−ス等の固定部材に嵌着しこれら外輪と内輪との間に、前記リングギヤ等の回転部材が一方向に回転するとき回転を許容し他方向に回転しようとすると回転をロックする係合部材と保持器及びエンドベアリングを配置してなる一方向クラッチの該内輪に油孔を穿設すると共に、該内輪の内周側近傍に、円筒部材の周方向に外方凹部と外方凸部とを交互に形成してなるリング部材を歯車機構のキャリヤ或いはドライブギヤ等の回転部材に固定して配置し、前記リング部材の外方凸部に複数個の油孔を穿設したことを特徴とする。
或いはまた、▲２▼フランジ部材を前記歯車機構のリングギヤ或いは外輪の回転部材に固定して配置し、円筒部材の周方向に外方凹部と外方凸部とを交互に形成してなるリング部材が一方向クラッチの内輪内周側近傍に位置するよう、該リング部材の円筒部材端部を前記フランジ部材に固着したことを特徴とする。
【０００７】
【作用】
一方向クラッチの潤滑装置を上記▲１▼及び▲２▼の手段とすると、いずれの場合でも、キャリヤ３と共にカウンタドライブギヤ２が回転すると、該キャリヤ３の側面に固着されたリング部材１５も共に回転する。そして入力軸１の油孔１ａや中間軸１１の油孔１１ａそしてキャリヤ３及びカウンタドライブギヤ２に設けた油孔２ｂを通過した潤滑油は遠心力によりリング部材１５の凸部１５ｃに設けた油孔１５ｄを通って隣の凹部１５ｂに溜まるが、更に該リング部材１５の遠心力により一方向クラッチ６の内輪６ｂに設けた油孔６ｊを通過して係合部材６ｄ及びエンドベアリング６ｃ等を潤滑する。
また、潤滑装置のリング部材１５では、キャリヤ３及びカウンタドライブギヤ２が回転しないとき、自動変速機構内部において、上部の凹部１５ｂには潤滑油が溜まっており且つ再始動の際キャリヤ３及びカウンタドライブギヤ２の回転による遠心力による飛散で直ちに該潤滑油は内輪６ｂの油孔６ｊを通り係合部材６ｄやエンドベアリング６ｃ等の配置されている一方向クラッチ６内部を潤滑することができる。また、リング部材１５の凹部１５ｂはケ−ス下部に溜まっている潤滑油をくみ上げる作用を有するので迅速に潤滑油を供給することができる。
【０００８】
【実施例】
以下、この発明の具体的実施例について図面を参照して説明する。
図１はこの発明の一方向クラッチの潤滑装置を取り付けた自動車の自動変速機構内部の一部断面図である。尚、重複を避けるため同一部品には従来技術で説明した同一の符号を用いて説明する。
エンジンから取り出される動力は入力軸１より変速機構を経て最終的にカウンタドライブギヤ２より取り出されるが、該カウンタドライブギヤ２に形成した円筒部２ａ内周側と遊星ギヤ１２を装着したキャリヤ３の円筒部３ｂ外周側とはスプライン嵌合させてある。プラネタリユニットのリングギヤ７には一方向クラッチ６の外輪６ａが固定（この場合は溶接による固定）され、トランスアクスルケ−ス４には該一方向クラッチ６の内輪６ｂが軸受保持部材１３と共にスプライン嵌合により固定されている。前記一方向クラッチ６の外輪６ａと内輪６ｂとの間には、前記リングギヤ７が一方向に回転するときには回転を許容し他方向に回転しようとするとロックして回転不能とする係合部材（スプラグ）６ｄと該係合部材６ｄを保持する保持器６ｆ及びこれらの係合部材６ｄと保持器６ｆの外側にはエンドベアリング６ｃが配置されている。従って、この一方向クラッチ６は外輪回転型のクラッチである。
【０００９】
次に、１５はリング部材であって図２の斜視図にも示すように、円筒部材１５ａの周方向に外方凹部１５ｂと外方凸部１５ｃとを交互に形成して製作される。該リング部材１５は外周面が前記一方向クラッチ６の内輪６ｂの内径面近傍に位置するように円筒部材１５ａの端部をキャリヤ３の側面に固着してある。該リング部材１５の凹部１５ｂは後述するようにキャリヤ３の回転に伴い遠心力で飛散してくる潤滑油を溜めて保持するためのものである。また、該リング部材１５の凸部１５ｃには油孔１５ｄが穿設され遠心力により飛散した潤滑油が内径側より該油孔１５ｄを通過して隣の凹部１５ｂに入って溜まるようにしてある。但し、該油孔１５ｄは凸部１５ｃのすべてに設ける必要はなく、所々複数個を設ければよい。前記一方向クラッチ６の内輪６ｂにはちょうど前記リング部材１５の凹部１５ｂ或いは凸部１５ｃの中央部が位置するように円周回りに数カ所（１箇所でも良い）油孔６ｊを設けてある。
【００１０】
図３は図１のＡ−Ａ矢視断面図、図４（Ａ）は前記リング部材１５の平面図である。該リング部材１５はこのように円筒部材１５ａに凹部１５ｂと凸部１５ｃとを形成したものであるが、これらの凹部１５ｂと凸部１５ｃを金属板で製作する場合にはプレス加工等により、合成樹脂で製作する場合には射出成形により製作する。尚、リング部材１５は図４（Ｂ）に示すように、凹部１５ｂと凸部１５ｃとは共に少し斜方向に形成し油孔１５ｄは若干凹部１５ｂに対して偏った位置に設けてもよい。
【００１１】
この一方向クラッチの潤滑装置は以上のような構成からなり、キャリヤ３と共にカウンタドライブギヤ２が回転すると、該キャリヤ３の側面に固着されたリング部材１５も共に回転する。そして入力軸１の油孔１ａや中間軸１１の油孔１１ａそしてキャリヤ３及びカウンタドライブギヤ２に設けた油孔２ｂを通過した潤滑油は遠心力によりリング部材１５の凸部１５ｃに設けた油孔１５ｄを通って隣の凹部１５ｂに溜まるが、更に該リング部材１５の遠心力により一方向クラッチ６の内輪６ｂに設けた油孔６ｊを通過して係合部材６ｄ及びエンドベアリング６ｃ、６ｃを潤滑する。
【００１２】
また、前記リング１５部材では、前記キャリヤ３及びカウンタドライブギヤ２が回転しないとき、自動変速機構内部において、上部の凹部１５ｂには潤滑油が溜まっており且つ再始動の際キャリヤ３及びカウンタドライブギヤ２の回転による遠心力による飛散で直ちに該潤滑油は内輪６ｂの油孔６ｊを通り係合部材６ｄやエンドベアリング６ｇ等の配置されている一方向クラッチ６内部を潤滑することができる。また、リング部材１５の凹部１５ｂはトランスアクスルケ−ス４の下部に溜まっている潤滑油を汲み上げる作用を有するので迅速に潤滑油を供給することができる。
【００１３】
図５はこの一方向クラッチの潤滑装置の変形実施例を備えた自動変速機構内部の一部断面図、図６はこの潤滑装置部分の拡大図である。
この実施例では、リング部材１５は回転フランジ１６に固着され、回転フランジ１６の外径部１６ｂはリングギヤ７に固定（固定方法はスプライン嵌合でも、圧入でも溶接でもよい）して配置してある。即ち、該リング部材１５の円筒部材１５ａの端部を回転フランジ１６の中間部に固着して一体回転するようにしてある。尚、該回転フランジ１６の内径部１６ａはカウンタドライブギヤ２にメタル１７を介して摺接されている。なお、回転フランジ１６は外輪６ａに固定するようにしてもよい。
【００１４】
この変形実施例の一方向クラッチの潤滑装置では、リングギヤ７が回転すると、該リングゾギヤ７に固着された回転フランジ１６及びリング部材１５も共に回転する。そして入力軸１の油孔１ａや中間軸１１の油孔１１ａそしてキャリヤ３及びカウンタドライブギヤ２に設けた油孔２ｂを通過した潤滑油は遠心力によりリング部材１５の凸部１５ｃに設けた油孔１５ｄを通って隣の凹部１５ｂに溜まり、更に該リング部材１５の遠心力により一方向クラッチ６の内輪６ｂに設けた油孔６ｊを通過して係合部材６ｄ及びエンドベアリング６ｃ等を潤滑する。この場合、一方向クラッチ６とリング部材１５の回転数は同じになり、一方向クラッチの回転数に比例した潤滑油の供給が可能になる。
【００１５】
【発明の効果】
以上詳述したようにこの発明の一方向クラッチの潤滑装置によれば、内輪固定型の一方向クラッチ内部を十分に潤滑し焼付を防止することができる。特に、リング部材の凹部でケ−ス下部に溜まっている潤滑油を速やかに汲み上げ内輪に設けた油孔を介して一方向クラッチ内部に潤滑油を供給することができる。また、この潤滑装置では回転部材を設けるだけで済むのでコスト的にも安価に製作することができる。
【図面の簡単な説明】
【図１】この発明の一方向クラッチの潤滑装置を取り付けた自動車の自動変速機構内部の一部断面図である。
【図２】この発明の一方向クラッチの潤滑装置で用いるリング部材の斜視図である。
【図３】図１のＡ−Ａ矢視断面図である。
【図４】図４（Ａ）はこの発明の一方向クラッチの潤滑装置の回転部材の平面図であって凹部と凸部とを周方向に対して直角に設けた場合の実施例図であり、図４（Ｂ）は回転部材の凹部と凸部とを周方向に対して少し斜方向に形成し油孔も若干凹部凹部に対して偏った位置に設けた場合の実施例である。
【図５】この発明の一方向クラッチの潤滑装置の変形実施例を備えた自動変速機構内部の一部断面図である。
【図６】この発明の一方向クラッチの潤滑装置の変形実施例の潤滑装置部分の拡大図である。
【図７】従来の一方向クラッチの潤滑装置の変形実施例を備えた自動変速機構内部の一部断面図である。
【図８】従来の一方向クラッチの潤滑装置の潤滑装置部分の拡大図である。
【符号の説明】
１ 入力軸
２ カウンタドライブギヤ
３ キャリヤ
４ トランスアクスルケ−ス
６ 一方向クラッチ
６ａ 外輪
６ｂ 内輪
６ｃ エンドベアリング
６ｊ 油孔
７ リングギヤ
１５ リング部材
１５ａ 円筒部材
１５ｂ 凹部
１５ｃ 凸部
１５ｄ 油孔[0001]
[Industrial application fields]
The present invention relates to a device for lubricating a one-way clutch of, for example, an automatic transmission of an automobile, and more specifically, a one-way provided with a rotating member that can sufficiently lubricate the inside of the one-way clutch using centrifugal force. The present invention relates to a clutch lubrication device.
[0002]
[Prior art]
FIG. 7 is a partial sectional view showing a lubricating structure inside the automatic transmission mechanism of the automobile.
A counter drive gear 2 for finally extracting the rotation at each stage from the input shaft 1 is disposed at the center of the automatic transmission mechanism. The inner periphery of the counter drive gear 2 is spline-fitted with the carrier 3, and the outer periphery is rotatably supported by a cylindrical portion 4 a of the transaxle case 4 via a bearing 5. The inner ring 6b of the one-way clutch 6 is spline-fitted to the outer peripheral surface of the cylindrical portion 4a of the transaxle case 4 and placed in a fixed state. The outer ring 6a of the one-way clutch 6 is placed in the ring gear 7 of the planetary gear unit. And rotate together. A disk brake 8 is interposed between the outer periphery of the ring gear and the axle housing 4, and the brake is engaged and released by the piston 9. A lubricating oil feed plate 10 for lubricating the one-way clutch 6 is press-fitted into the inner peripheral surface of the ring gear 7, and the lubricating oil is an oil hole 1 a of the input shaft 1 and an oil hole of the hollow shaft 11. 11a, through the oil hole 3a of the carrier 3 and the notch of the counter drive gear 2, it is sent out by centrifugal force and scattered, and the scattered lubricating oil is collected by the lubricating oil feeding plate 10 and guided to the one-way clutch 6. At the same time, the lubricating oil adhering to the lubricating oil feeding plate 10 generates a pressure for feeding the lubricating oil into the one-way clutch 6 (Japanese Patent Laid-Open No. 63-275854).
[0003]
[Problems to be solved by the invention]
Lubrication of the one-way clutch 6 inside the automatic transmission is usually performed by supplying oil by forced lubrication from the inner ring 6b side or by centrifugal force of inner ring rotation. However, when the track diameter is large and the inner ring 6b is fixed in particular, it is difficult to provide a forced oil supply passage, and oil supply by centrifugal force from the inner ring cannot be expected. As a result, the lubricating oil becomes insufficient, and troubles such as seizure on end bearings are likely to occur.
[0004]
In the conventional lubrication apparatus, as shown in FIG. 8, when lubrication is performed with the route indicated by the arrow A, oil is generated in the P portion by the rotation of the lubrication oil feeding plate 10 to supply the oil. As the temperature rises, the gap between the end bearing 6c and the inner ring 6b becomes small, and it becomes difficult to supply oil. As a result, seizure occurs. That is, since the material of the end bearing 6c has a large thermal expansion coefficient and is thin, the amount of thermal deformation is large, and the gap between the end bearing 6c and the inner ring 6b tends to be small.
Further, when the oil supply hole 6e is provided in the inner ring 6b, since the space Q is wide, it is difficult to generate hydraulic pressure, and it is difficult to supply oil from the oil supply hole 6e of the inner ring 6b.
[0005]
The present invention has been made paying attention to the above-mentioned problems, and even when the inner ring is fixed, it is possible to sufficiently supply the lubricating oil to the one-way clutch with a simple device and to seize the end bearings and the like. An object of the present invention is to provide a lubricating device for a one-way clutch that can be prevented.
[0006]
[Means for Solving the Problems]
In other words, in order to solve the above-described problems, the present invention provides a one-way clutch lubrication device in which (1) the outer ring is fitted to a rotating member such as a ring gear and the inner ring is fitted to a fixed member such as a transaxle case. Between the outer ring and the inner ring, an engaging member, a cage, and an end bearing that allow rotation when the rotating member such as the ring gear rotates in one direction and lock the rotation when trying to rotate in the other direction are arranged. A ring member formed by alternately forming an outer concave portion and an outer convex portion in the circumferential direction of the cylindrical member in the vicinity of the inner peripheral side of the inner ring. Is fixed to a rotating member such as a carrier of a gear mechanism or a drive gear, and a plurality of oil holes are formed in the outward convex portion of the ring member.
Alternatively, (2) a ring member in which the flange member is fixedly disposed on the ring gear of the gear mechanism or the rotating member of the outer ring, and the outer concave portion and the outer convex portion are alternately formed in the circumferential direction of the cylindrical member. The cylindrical member end of the ring member is fixed to the flange member so that is positioned in the vicinity of the inner ring inner peripheral side of the one-way clutch.
[0007]
[Action]
If the lubricating device for the one-way clutch is the means (1) and (2), when the counter drive gear 2 rotates together with the carrier 3, the ring member 15 fixed to the side surface of the carrier 3 is also Rotate. The lubricating oil that has passed through the oil hole 1a of the input shaft 1, the oil hole 11a of the intermediate shaft 11, and the oil hole 2b provided in the carrier 3 and the counter drive gear 2 is the oil provided in the convex portion 15c of the ring member 15 by centrifugal force. It accumulates in the adjacent recess 15b through the hole 15d, but further passes through the oil hole 6j provided in the inner ring 6b of the one-way clutch 6 by the centrifugal force of the ring member 15 to lubricate the engaging member 6d and the end bearing 6c. To do.
Further, in the ring member 15 of the lubricating device, when the carrier 3 and the counter drive gear 2 do not rotate, lubricating oil is accumulated in the upper concave portion 15b inside the automatic transmission mechanism, and the carrier 3 and the counter drive are restarted at the time of restart. The lubricating oil immediately passes through the oil hole 6j of the inner ring 6b and can lubricate the inside of the one-way clutch 6 in which the engaging member 6d, the end bearing 6c and the like are arranged, by scattering due to the centrifugal force due to the rotation of the gear 2. Further, since the concave portion 15b of the ring member 15 has an action of pumping up the lubricating oil accumulated in the lower part of the case, the lubricating oil can be supplied quickly.
[0008]
【Example】
Specific embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a partial cross-sectional view of the interior of an automatic transmission mechanism of an automobile to which a lubricating device for a one-way clutch according to the present invention is attached. In addition, in order to avoid duplication, it demonstrates using the same code | symbol demonstrated by the prior art for the same component.
The power extracted from the engine is finally extracted from the counter drive gear 2 via the speed change mechanism from the input shaft 1, and the cylindrical portion 2 a formed on the counter drive gear 2 and the carrier 3 on which the planetary gear 12 is mounted. Spline fitting is performed on the outer peripheral side of the cylindrical portion 3b. The outer ring 6a of the one-way clutch 6 is fixed to the ring gear 7 of the planetary unit (in this case, fixed by welding), and the inner ring 6b of the one-way clutch 6 is spline-fitted together with the bearing holding member 13 to the transaxle case 4. It is fixed as a result. An engagement member (sprag) between the outer ring 6a and the inner ring 6b of the one-way clutch 6 that allows rotation when the ring gear 7 rotates in one direction and locks it when attempting to rotate in the other direction and prevents rotation. ) 6d and a retainer 6f that holds the engaging member 6d, and an end bearing 6c is disposed outside the engaging member 6d and the retainer 6f. Therefore, the one-way clutch 6 is an outer ring rotation type clutch.
[0009]
Next, 15 is a ring member, and as shown in the perspective view of FIG. 2, the outer concave portions 15b and the outer convex portions 15c are alternately formed in the circumferential direction of the cylindrical member 15a. The end of the cylindrical member 15a is fixed to the side surface of the carrier 3 so that the outer peripheral surface of the ring member 15 is positioned in the vicinity of the inner diameter surface of the inner ring 6b of the one-way clutch 6. As will be described later, the concave portion 15b of the ring member 15 is for collecting and holding lubricating oil scattered by centrifugal force as the carrier 3 rotates. Further, an oil hole 15d is formed in the convex portion 15c of the ring member 15, and lubricating oil scattered by centrifugal force passes through the oil hole 15d from the inner diameter side and enters and enters the adjacent concave portion 15b. . However, it is not necessary to provide the oil holes 15d in all of the convex portions 15c, and a plurality of oil holes may be provided in some places. The inner ring 6b of the one-way clutch 6 is provided with several (or even one) oil holes 6j around the circumference so that the concave portion 15b of the ring member 15 or the central portion of the convex portion 15c is located.
[0010]
3 is a cross-sectional view taken along the line AA in FIG. 1, and FIG. 4A is a plan view of the ring member 15. The ring member 15 is formed by forming the concave portion 15b and the convex portion 15c in the cylindrical member 15a as described above. When the concave portion 15b and the convex portion 15c are made of a metal plate, the ring member 15 is synthesized by pressing or the like. When manufacturing with resin, it is manufactured by injection molding. As shown in FIG. 4B, the ring member 15 may be formed so that both the concave portion 15b and the convex portion 15c are slightly inclined, and the oil hole 15d is provided at a position slightly deviated from the concave portion 15b.
[0011]
This one-way clutch lubrication device has the above-described configuration. When the counter drive gear 2 rotates together with the carrier 3, the ring member 15 fixed to the side surface of the carrier 3 also rotates. The lubricating oil that has passed through the oil hole 1a of the input shaft 1, the oil hole 11a of the intermediate shaft 11, and the oil hole 2b provided in the carrier 3 and the counter drive gear 2 is the oil provided in the convex portion 15c of the ring member 15 by centrifugal force. It accumulates in the adjacent recess 15b through the hole 15d, but further passes through the oil hole 6j provided in the inner ring 6b of the one-way clutch 6 by the centrifugal force of the ring member 15, and passes through the engagement member 6d and the end bearings 6c, 6c. Lubricate.
[0012]
Further, in the ring 15 member, when the carrier 3 and the counter drive gear 2 do not rotate, lubricating oil is accumulated in the upper concave portion 15b inside the automatic transmission mechanism, and the carrier 3 and the counter drive gear are restarted at the time of restart. The lubricating oil immediately passes through the oil hole 6j of the inner ring 6b and can lubricate the inside of the one-way clutch 6 in which the engaging member 6d, the end bearing 6g and the like are arranged, by the scattering due to the centrifugal force due to the rotation of 2. Further, the recess 15b of the ring member 15 has an action of pumping up the lubricating oil accumulated in the lower part of the transaxle case 4, so that the lubricating oil can be supplied quickly.
[0013]
FIG. 5 is a partial sectional view of the inside of an automatic transmission mechanism provided with a modified embodiment of the lubrication device for this one-way clutch, and FIG. 6 is an enlarged view of this lubrication device portion.
In this embodiment, the ring member 15 is fixed to the rotating flange 16, and the outer diameter portion 16b of the rotating flange 16 is fixed to the ring gear 7 (the fixing method may be spline fitting, press-fitting or welding). . That is, the end portion of the cylindrical member 15a of the ring member 15 is fixed to the intermediate portion of the rotary flange 16 so as to rotate integrally. The inner diameter portion 16 a of the rotating flange 16 is slidably contacted with the counter drive gear 2 via a metal 17. The rotating flange 16 may be fixed to the outer ring 6a.
[0014]
In the one-way clutch lubrication device of this modified embodiment, when the ring gear 7 rotates, the rotary flange 16 and the ring member 15 fixed to the ring Zo gear 7 also rotate. The lubricating oil that has passed through the oil hole 1a of the input shaft 1, the oil hole 11a of the intermediate shaft 11, and the oil hole 2b provided in the carrier 3 and the counter drive gear 2 is the oil provided in the convex portion 15c of the ring member 15 by centrifugal force. It accumulates in the adjacent recess 15b through the hole 15d, and further passes through the oil hole 6j provided in the inner ring 6b of the one-way clutch 6 by the centrifugal force of the ring member 15 to lubricate the engaging member 6d and the end bearing 6c. . In this case, the rotational speeds of the one-way clutch 6 and the ring member 15 are the same, and lubricating oil can be supplied in proportion to the rotational speed of the one-way clutch.
[0015]
【The invention's effect】
As described in detail above, according to the one-way clutch lubrication device of the present invention, the inside of the inner ring fixed one-way clutch can be sufficiently lubricated to prevent seizure. In particular, the lubricating oil accumulated in the lower part of the case at the concave portion of the ring member can be quickly pumped up and supplied to the inside of the one-way clutch through an oil hole provided in the inner ring. In addition, since only a rotating member is required in this lubricating device, it can be manufactured at low cost.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional view of an interior of an automatic transmission mechanism of an automobile to which a lubricating device for a one-way clutch according to the present invention is attached.
FIG. 2 is a perspective view of a ring member used in the lubricating device for a one-way clutch according to the present invention.
FIG. 3 is a cross-sectional view taken along the line AA in FIG.
FIG. 4 (A) is a plan view of a rotating member of a lubricating device for a one-way clutch according to the present invention, showing an embodiment in the case where a concave portion and a convex portion are provided at right angles to the circumferential direction. FIG. 4B shows an embodiment in which the concave portion and the convex portion of the rotating member are formed in a slightly oblique direction with respect to the circumferential direction, and the oil hole is provided at a position slightly deviated from the concave and concave portion.
FIG. 5 is a partial cross-sectional view of the inside of an automatic transmission mechanism provided with a modified embodiment of the lubricating device for a one-way clutch according to the present invention.
FIG. 6 is an enlarged view of a lubricating device portion of a modified embodiment of the lubricating device for a one-way clutch according to the present invention.
FIG. 7 is a partial cross-sectional view of the inside of an automatic transmission mechanism provided with a modified embodiment of a conventional one-way clutch lubrication device.
FIG. 8 is an enlarged view of a lubricating device portion of a conventional one-way clutch lubricating device.
[Explanation of symbols]
1 Input shaft 2 Counter drive gear 3 Carrier 4 Transaxle case 6 One-way clutch 6a Outer ring 6b Inner ring 6c End bearing 6j Oil hole 7 Ring gear 15 Ring member 15a Cylindrical member 15b Concave portion 15c Convex portion 15d Oil hole

Claims (2)

外輪はリングギヤ等の回転部材に嵌着し内輪はトランスアクスルケ−ス等の固定部材に嵌着しこれら外輪と内輪との間に、前記リングギヤ等の回転部材が一方向に回転するとき回転を許容し他方向に回転しようとすると回転をロックする係合部材と保持器及びエンドベアリングを配置してなる一方向クラッチの該内輪に油孔を穿設すると共に、該内輪の内周側近傍に、円筒部材の周方向に外方凹部と外方凸部とを交互に形成してなるリング部材を歯車機構のキャリヤ或いはドライブギヤ等の回転部材に固定して配置し、前記リング部材の外方凸部に複数個の油孔を穿設したことを特徴とする一方向クラッチの潤滑装置。The outer ring is fitted to a rotating member such as a ring gear, and the inner ring is fitted to a fixed member such as a transaxle case. An oil hole is formed in the inner ring of the one-way clutch, which is provided with an engagement member, a cage and an end bearing that lock the rotation when allowed to rotate in the other direction, and in the vicinity of the inner peripheral side of the inner ring. A ring member formed by alternately forming an outer concave portion and an outer convex portion in the circumferential direction of the cylindrical member is fixed to a rotating member such as a carrier of a gear mechanism or a drive gear, and the outer side of the ring member A lubrication device for a one-way clutch, wherein a plurality of oil holes are formed in a convex portion. フランジ部材を歯車機構のリングギヤ或いは外輪の回転部材に固定して配置し、円筒部材の周方向に外方凹部と外方凸部とを交互に形成してなるリング部材が一方向クラッチの内輪内周側近傍に位置するよう、該リング部材の円筒部材端部を前記フランジ部材に固着したことを特徴とする請求項第１項記載の一方向クラッチの潤滑装置。The ring member is formed by fixing the flange member to the ring gear of the gear mechanism or the rotating member of the outer ring, and alternately forming the outer concave portion and the outer convex portion in the circumferential direction of the cylindrical member. The lubricating device for a one-way clutch according to claim 1, wherein the end of the cylindrical member of the ring member is fixed to the flange member so as to be positioned in the vicinity of the circumferential side.
JP07738195A 1995-03-07 1995-03-07 Lubricator for one-way clutch Expired - Fee Related JP3661799B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP07738195A JP3661799B2 (en) 1995-03-07 1995-03-07 Lubricator for one-way clutch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP07738195A JP3661799B2 (en) 1995-03-07 1995-03-07 Lubricator for one-way clutch

Publications (2)

Publication Number Publication Date
JPH08247264A JPH08247264A (en) 1996-09-24
JP3661799B2 true JP3661799B2 (en) 2005-06-22

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JP07738195A Expired - Fee Related JP3661799B2 (en) 1995-03-07 1995-03-07 Lubricator for one-way clutch

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Country Link
JP (1) JP3661799B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003042195A (en) * 2001-08-01 2003-02-13 Nsk Warner Kk One way clutch device
JP5382030B2 (en) * 2011-02-23 2014-01-08 アイシン・エィ・ダブリュ株式会社 Friction plate lubrication device for automatic transmission

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