JP2002181168A - Lubricating mechanism of transmission - Google Patents
Lubricating mechanism of transmissionInfo
- Publication number
- JP2002181168A JP2002181168A JP2000379225A JP2000379225A JP2002181168A JP 2002181168 A JP2002181168 A JP 2002181168A JP 2000379225 A JP2000379225 A JP 2000379225A JP 2000379225 A JP2000379225 A JP 2000379225A JP 2002181168 A JP2002181168 A JP 2002181168A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- lubricating oil
- case
- guide
- groove
- 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.)
- Granted
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
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0493—Gearings with spur or bevel gears
-
- 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
-
- 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/089—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
-
- 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
- F16H57/0426—Means for guiding lubricant into an axial channel of a shaft
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、変速機の潤滑機構
に関する。[0001] The present invention relates to a lubrication mechanism for a transmission.
【０００２】[0002]
【従来の技術】変速機の潤滑機構としては、ケースと、
このケース内に一端部がベアリングを介して回転自在に
軸支されて外周にてギヤを回転自在に支承し一端部側の
端面から軸方向に向けて形成された軸方向穴およびこの
軸方向穴から径方向に延びて外周に開口する径方向孔を
有するシャフトからなるものが知られている。2. Description of the Related Art As a lubrication mechanism for a transmission, a case,
One end of the case is rotatably supported via a bearing through a bearing, and the gear is rotatably supported on the outer periphery. An axial hole formed axially from an end face on one end side and the axial hole. And a shaft having a radial hole extending in the radial direction and opening to the outer periphery is known.
【０００３】この種の潤滑機構として、特公平３−４３
５１８号公報および特開２０００−０８１１１７号公報
に示されたものがある。前者は、シャフトに設けた軸方
向穴に嵌入して同軸方向穴に潤滑油を導くパイプとこの
パイプの端部に一体的に形成されて径外方に延び外周縁
部をケースとベアリングによって挟持されるフランジを
備えた潤滑油案内部材が設けられているものである。こ
のような潤滑機構においては、ケース内の潤滑油が潤滑
油案内部材を介して軸方向穴に流入されて、径方向孔を
通してシャフトとギヤの間の相対回転部分に供給され
る。As this type of lubrication mechanism, Japanese Patent Publication No. 3-43
518 and JP-A-2000-08117. The former is a pipe that fits in an axial hole provided in the shaft and guides the lubricating oil to the coaxial hole, and is formed integrally with the end of the pipe and extends radially outward to clamp the outer peripheral edge by a case and a bearing. A lubricating oil guide member having a flange to be provided is provided. In such a lubrication mechanism, the lubricating oil in the case flows into the axial hole via the lubricating oil guide member, and is supplied to the relative rotating portion between the shaft and the gear through the radial hole.
【０００４】後者は、ケースの内壁であってシャフトの
端面に対向する部位にシャフトの回転方向にて中心に向
けて旋回する旋回誘導壁を形成するとともに、この旋回
誘導壁の中心部分（突起）をシャフトの軸方向穴に向け
て所定量突出させているものである。またケース内壁と
シャフト端面の間には油室が形成されている。このよう
な潤滑機構においては、シャフトが回転すると、油室に
順次供給される潤滑油が油室内にてシャフトの回転に伴
って旋回し、この潤滑油が各旋回誘導壁に沿って各旋回
誘導壁の中心部分に向けて流れて、シャフトの軸方向穴
に向けて導かれる。したがって、この軸方向穴には潤滑
油が供給されて、径方向孔を通してシャフトとギヤの間
の相対回転部分に供給される。In the latter, a turning guide wall which turns toward the center in the rotation direction of the shaft is formed on the inner wall of the case opposite to the end face of the shaft, and a central portion (projection) of the turning guide wall is formed. Is projected toward the axial hole of the shaft by a predetermined amount. An oil chamber is formed between the inner wall of the case and the end face of the shaft. In such a lubricating mechanism, when the shaft rotates, the lubricating oil sequentially supplied to the oil chamber turns with the rotation of the shaft in the oil chamber, and this lubricating oil flows along each turning guide wall to each turning guide. It flows towards the central part of the wall and is guided towards the axial bore of the shaft. Therefore, lubricating oil is supplied to the axial hole and supplied to the relative rotating portion between the shaft and the gear through the radial hole.
【０００５】[0005]
【発明が解決しようとする課題】上記した前者の従来技
術による潤滑機構においては、別部品である潤滑油案内
部材を必要とするためコストアップになるという問題が
ある。また、潤滑油案内部材がケースとベアリングによ
って挟持される部品であるため、組付スペースが必要で
あるとともに組付工数が必要であり、変速機自体が大型
になるという問題があり、これによってもコストアップ
になるという問題がある。The above-described lubricating mechanism according to the prior art has a problem that the cost is increased because a separate lubricating oil guide member is required. Also, since the lubricating oil guide member is a part sandwiched between the case and the bearing, there is a problem that an assembling space is required and assembling man-hours are required, and the transmission itself becomes large. There is a problem that the cost increases.
【０００６】また、上記した後者の従来技術による潤滑
機構においては、旋回誘導壁の中心部分（突起）が円す
い状であるため、中心部分の根元に導かれた潤滑油はこ
の中心部分の先端まで到達しにくく途中で流れ落ちてし
まうというおそれがある。また、シャフトの回転速度が
増大すると、油室内においてシャフトの回転に伴って旋
回する潤滑油が、遠心力による半径方向外向きの力を受
けるので、旋回の中心付近に開口するシャフトの軸方向
穴に導かれなくなるおそれがある。In the latter conventional lubricating mechanism described above, since the central portion (projection) of the turning guide wall is conical, the lubricating oil guided to the root of the central portion extends to the tip of the central portion. There is a possibility that it will be hard to reach and will run off on the way. In addition, when the rotation speed of the shaft increases, the lubricating oil that rotates with the rotation of the shaft in the oil chamber receives a radially outward force due to centrifugal force. May not be guided to
【０００７】本発明は、上記各問題に対処するためにな
されたもので、その目的は、コンパクトかつ安価に、し
かも確実にシャフト内に潤滑油を供給することができる
変速機の潤滑機構を提供することにある。SUMMARY OF THE INVENTION The present invention has been made to address the above-described problems, and has as its object to provide a lubrication mechanism for a transmission that can supply lubricating oil to a shaft in a compact, inexpensive, and reliable manner. Is to do.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に、本発明の構成上の特徴は、ケースと、このケース内
に一端部がベアリングを介して回転自在に軸支されて外
周にてギヤを回転自在に支承し一端部側の端面から軸方
向に向けて形成された軸方向穴およびこの軸方向穴から
径方向に延びて外周に開口する径方向孔を有するシャフ
トからなり、ケース内の潤滑油が軸方向穴および径方向
孔を通してシャフトとギヤの間の相対回転部分に供給さ
れる変速機の潤滑機構において、ケースの内壁であって
シャフトの端面に対向する部位に、上側に開いた溝を長
手方向に沿って形成した案内部を軸方向穴に所定量だけ
入り込むように突出させて形成し、ケースの内壁であっ
てシャフトの端面に対向する部位に、潤滑油が通る凹部
およびこの凹部内に突出する凸部を形成し、凹部の内側
面および凸部の外側面により、それぞれ凹部内をシャフ
トの回転に連れ廻る潤滑油を案内部に形成した溝に導く
第１案内壁および第２案内壁を形成したことにある。In order to achieve the above-mentioned object, the constitution of the present invention is characterized in that a case and one end of the case are rotatably supported via bearings in the case and the outer periphery of the case. The case comprises a shaft which rotatably supports a gear and has an axial hole formed in the axial direction from an end face on one end side and a radial hole extending radially from the axial hole and opening to the outer periphery. Lubricating oil is supplied to the relative rotating portion between the shaft and the gear through the axial hole and the radial hole, and the lubrication mechanism of the transmission is opened upward on a portion of the inner wall of the case facing the end face of the shaft. A groove formed along the longitudinal direction is formed by projecting a guide portion into the axial hole so as to enter a predetermined amount, and a recess through which lubricating oil passes is formed on a portion of the inner wall of the case facing the end surface of the shaft. Inside this recess A first guide wall and a second guide wall which form a protruding convex portion and guide lubricating oil, which rotates with the rotation of the shaft in the concave portion, to a groove formed in the guide portion by an inner surface of the concave portion and an outer surface of the convex portion. Has been formed.
【０００９】[0009]
【発明の作用・効果】本発明による変速機の潤滑機構に
おいては、シャフトが回転する際に、この回転に伴って
ケース内上方に跳ね上げられた潤滑油のうち一部はケー
ス内壁の凹部に導かれ、この潤滑油は凹部内をシャフト
の回転に連れ廻る。連れ廻る潤滑油は凸部により分流さ
れ、第１案内壁および第２案内壁に沿って案内部に形成
した溝に案内され、再び合流して溝の根元に達する。こ
の潤滑油のうち溝に流れ込んだ潤滑油はその溝に沿って
流れ、溝の先端からシャフトの軸方向穴内にこぼれ落ち
ることとなる。これにより、部品点数を増やすことな
く、シャフトの軸方向穴には潤滑油が確実に供給され、
径方向孔からシャフトとその外周に支承されたギヤとの
間の相対回転部分に潤滑油が確実に供給される。したが
って、変速機の潤滑機構をコンパクトかつ安価に提供す
ることができる。In the lubrication mechanism for a transmission according to the present invention, when the shaft rotates, a part of the lubricating oil which is splashed upward in the case along with the rotation is formed in the recess on the inner wall of the case. This lubricating oil is guided inside the recess as the shaft rotates. The entrained lubricating oil is diverted by the projections, guided along the first guide wall and the second guide wall into the groove formed in the guide portion, and merges again to reach the root of the groove. Of the lubricating oil, the lubricating oil that has flowed into the groove flows along the groove, and spills from the end of the groove into the axial hole of the shaft. As a result, the lubricating oil is reliably supplied to the axial hole of the shaft without increasing the number of parts,
Lubricating oil is reliably supplied from the radial hole to a relative rotating portion between the shaft and a gear supported on the outer periphery thereof. Therefore, it is possible to provide a compact and inexpensive lubrication mechanism for the transmission.
【００１０】また、本発明においては、第１案内壁に沿
って案内される潤滑油からなる流れと第２案内壁に沿っ
て案内される潤滑油からなる流れが溝内にて衝突する。
これにより、潤滑油の流れが両流れのどちらか１つであ
ると一旦溝に流れ込んだ潤滑油は流れ込んだ側とは逆の
壁を越えてこぼれやすいが、これに比べて溝内にて２つ
の潤滑油の流れが衝突して勢いがそがれるので、一旦溝
に流れ込んだ潤滑油は溝からこぼれにくくなり、より多
くの潤滑油が溝に流れ込むこととなる。したがって、凹
部を通過する潤滑油をシャフトの軸方向穴に効率よく導
くことができて、径方向孔からシャフトとその外周に支
承されたギヤとの間の相対回転部分に効率よく導くこと
ができる。In the present invention, the flow of lubricating oil guided along the first guide wall and the flow of lubricating oil guided along the second guide wall collide in the groove.
As a result, if the flow of the lubricating oil is one of the two flows, the lubricating oil once flowing into the groove is likely to spill over the wall opposite to the side into which the lubricating oil has flowed. Since the flows of the two lubricating oils collide and lose momentum, the lubricating oil once flowing into the groove is less likely to spill out of the groove, and more lubricating oil flows into the groove. Therefore, the lubricating oil passing through the concave portion can be efficiently guided to the axial hole of the shaft, and can be efficiently guided from the radial hole to the relative rotation portion between the shaft and the gear supported on the outer periphery thereof. .
【００１１】また、シャフトが高回転になっても、凹部
を通過する潤滑油のうち案内部に形成した溝の根元に流
れ込んだ潤滑油はその溝に沿って流れ、溝の先端からシ
ャフトの軸方向穴内にこぼれ落ちることとなる。したが
って、シャフトの回転速度が増大しても、シャフトの軸
方向穴には潤滑油が確実に供給されて、径方向孔からシ
ャフトとその外周に支承されたギヤとの間の相対回転部
分に潤滑油が確実に供給される。[0011] Even when the shaft rotates at a high speed, the lubricating oil that has flowed into the base of the groove formed in the guide portion among the lubricating oil passing through the concave portion flows along the groove, and the shaft of the shaft extends from the tip of the groove. It will spill into the direction hole. Therefore, even if the rotational speed of the shaft increases, the lubricating oil is reliably supplied to the axial hole of the shaft, and lubricates the relative rotational portion between the shaft and the gear supported on the outer periphery from the radial hole. Oil is reliably supplied.
【００１２】[0012]
【発明の実施の形態】以下に、本発明の一実施形態を図
面に基づいて説明する。図１および図２は本発明による
変速機の潤滑機構を歯車変速機におけるシャフト１０の
左端部に実施した実施形態を示している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show an embodiment in which a lubrication mechanism for a transmission according to the present invention is applied to a left end portion of a shaft 10 in a gear transmission.
【００１３】シャフト１０は、動力出力装置（例えば、
車両のエンジン）からの動力（回転力）を入力し変速ギ
ヤ（ギヤ）４１，４２，４３を介して出力軸（出力用シ
ャフト）に出力するものであり、図１および図２に示す
ように、その左端部にてベアリング２０を介してケース
３０内上部に回転自在に軸支されている。シャフト１０
は、その外周にて３個の変速ギヤ４１，４２，４３をニ
ードルベアリングを介して回転自在に支承している。ま
た、シャフト１０は、シャフト１０の左端面から軸方向
に向けて形成された軸方向穴１１と、この軸方向穴１１
から径方向に延びて外周に開口して形成された各径方向
孔１２，１３，１４を有している。これら径方向孔１
２，１３，１４は変速ギヤ４１，４２，４３の内周に臨
むように形成されている。またシャフト１０には、変速
ギヤ４１をシャフト１０に離脱可能に結合するための同
期噛合装置４４および変速ギヤ４２，４３を選択的にシ
ャフト１０に離脱可能に結合するための同期噛合装置４
５が組み付けられている。The shaft 10 is provided with a power output device (for example,
Power (rotational force) from the engine of the vehicle is input and output to an output shaft (output shaft) via transmission gears (gears) 41, 42, and 43, as shown in FIGS. , At the left end thereof, is rotatably supported at an upper portion inside the case 30 via a bearing 20. Shaft 10
Has three transmission gears 41, 42, 43 rotatably supported on its outer periphery via needle bearings. The shaft 10 has an axial hole 11 formed in the axial direction from the left end face of the shaft 10 and an axial hole 11 formed in the axial direction.
And has radial holes 12, 13, and 14 formed in the radial direction and opened to the outer periphery. These radial holes 1
The gears 2, 13, and 14 are formed so as to face the inner circumferences of the transmission gears 41, 42, 43. The shaft 10 has a synchronous meshing device 44 for removably coupling the transmission gear 41 to the shaft 10 and a synchronous meshing device 4 for selectively removably coupling the transmission gears 42 and 43 to the shaft 10.
5 are assembled.
【００１４】ベアリング２０は、周知のシールド形ボー
ルベアリングであり、環状のプレート５０とともにケー
ス３０の取付穴３３に組付けられるとともに、シャフト
１０を回転自在に軸支している。The bearing 20 is a well-known shielded ball bearing, which is mounted together with the annular plate 50 in the mounting hole 33 of the case 30 and rotatably supports the shaft 10.
【００１５】ケース３０の内壁であってシャフト１０の
左端面に対向する部位には、図３に示すように、上側
（図１および図２の上方向）に開いた溝３４ａを長手方
向の全長に沿って形成した案内部３４が軸方向穴１１に
所定量だけ入り込むように突出させて形成されている。
なお、溝３４ａは断面Ｕ形状に形成してもよいし、断面
Ｖ字状に形成するようにしてもよい。As shown in FIG. 3, a groove 34a opened upward (upward in FIGS. 1 and 2) is provided on the inner wall of the case 30 opposite to the left end surface of the shaft 10 in the entire length in the longitudinal direction. Is formed so as to protrude so as to enter the axial hole 11 by a predetermined amount.
The groove 34a may be formed in a U-shaped cross section, or may be formed in a V-shaped cross section.
【００１６】また、ケース３０の内壁であってシャフト
の左端面に対向する部位には、図３に示すように、潤滑
油が通る凹部３５およびこの凹部３５内に突出する凸部
３６がそれぞれ形成されている。凹部３５の内側面およ
び凸部３６の外側面により第１案内壁３５ａおよび第２
案内壁３６ａがそれぞれ形成されている。第１案内壁３
５ａは凹部３５内を連れ廻る潤滑油を図３に示す矢印Ｃ
１に沿って案内して溝３４ａの根元に導いており、第２
案内壁３６ａは凹部３５内を回動する潤滑油を図３に示
す矢印Ｃ２に沿って案内して溝３４ａの根元に導いてい
る。なお、第１案内壁および第２案内壁３５ａ，３６ａ
は潤滑油の回動方向（図３の白抜き矢印で示す時計回り
方向）に応じてこの潤滑油を効率よく溝３４ａに導くよ
うな形状に形成されている。また、第１案内壁および第
２案内壁３５ａ，３６ａはケース３０の内壁であって溝
３４ａより上部に設けることが好ましい。As shown in FIG. 3, a concave portion 35 through which lubricating oil passes and a convex portion 36 protruding into the concave portion 35 are formed on the inner wall of the case 30 facing the left end surface of the shaft. Have been. The first guide wall 35a and the second guide wall 35a are formed by the inner surface of the concave portion 35 and the outer surface of the convex portion 36.
Guide walls 36a are respectively formed. First guide wall 3
Reference numeral 5a denotes the lubricating oil that follows the inside of the recess 35 as indicated by an arrow C in FIG.
1 and is guided to the root of the groove 34a.
The guide wall 36a guides the lubricating oil rotating in the recess 35 along the arrow C2 shown in FIG. 3 to the root of the groove 34a. The first guide wall and the second guide walls 35a, 36a
Is formed in such a shape that the lubricating oil is efficiently guided to the groove 34a in accordance with the rotating direction of the lubricating oil (clockwise direction indicated by the white arrow in FIG. 3). The first and second guide walls 35a, 36a are preferably provided on the inner wall of the case 30 and above the groove 34a.
【００１７】ケース３０の内壁に設けた凹部３５内に
は、図３に示すように、周知の捕捉手段により捕捉され
た潤滑油がケース３０に設けた供給通路３１を通して順
次供給され、また余剰の潤滑油はケース３０に設けた排
出通路３２を通して排出されるようになっている。な
お、凹部３５から排出通路３２を通して排出された潤滑
油は、当該歯車変速機の油溜（図示省略）に還流される
ようになっている。As shown in FIG. 3, lubricating oil captured by well-known capturing means is sequentially supplied into a concave portion 35 provided on the inner wall of the case 30 through a supply passage 31 provided in the case 30. The lubricating oil is discharged through a discharge passage 32 provided in the case 30. The lubricating oil discharged from the recess 35 through the discharge passage 32 is returned to an oil reservoir (not shown) of the gear transmission.
【００１８】上記のように構成した本実施形態において
は、シャフト１０が図２および図３の白抜き矢印方向に
回転すると、この回転に伴う各ギア４１〜４５の回転に
よりケース３０内上方（図１および図２の上方向）に跳
ね上げられた潤滑油のうち一部は供給通路３１を介して
ケース３０の内壁に設けた凹部３５に導かれ、この潤滑
油は凹部３５内をシャフト１０の回転に連れ廻る。連れ
廻る潤滑油は凸部３６により矢印Ｃ１およびＣ２の示す
流れに分流され、第１案内壁および第２案内壁に沿って
案内部に形成した溝に案内され、再び合流して溝３４ａ
の根元に達する。この潤滑油のうち溝３４ａに流れ込ん
だ潤滑油はその溝３４ａに沿って流れ、溝３４ａの先端
からシャフト１０の軸方向穴１１内にこぼれ落ちること
となる。これにより、部品点数を増やすことなく、シャ
フト１０の軸方向穴１１には潤滑油が確実に供給され、
各径方向孔１２，１３，１４からシャフト１０とその外
周に支承された各ギヤ４１，４２，４３との間の相対回
転部分に潤滑油が確実に供給される。したがって、変速
機の潤滑機構をコンパクトかつ安価に提供することがで
きる。In this embodiment constructed as described above, when the shaft 10 rotates in the direction of the outlined arrow in FIGS. 2 and 3, the rotation of each of the gears 41 to 45 accompanying this rotation causes the upper part of the case 30 (see FIG. A part of the lubricating oil that has been splashed upward (upward in FIG. 1 and FIG. 2) is guided to the concave portion 35 provided on the inner wall of the case 30 through the supply passage 31, and the lubricating oil flows through the concave portion 35 into the shaft 10. Follow the rotation. The entrained lubricating oil is split by the convex portion 36 into the flow indicated by arrows C1 and C2, guided along the first guide wall and the second guide wall into the groove formed in the guide portion, and merges again to form the groove 34a.
Reaches the root of Of the lubricating oil, the lubricating oil that has flowed into the groove 34a flows along the groove 34a, and spills from the tip of the groove 34a into the axial hole 11 of the shaft 10. Thereby, the lubricating oil is reliably supplied to the axial hole 11 of the shaft 10 without increasing the number of parts,
Lubricating oil is reliably supplied from each radial hole 12, 13, 14 to a relative rotating portion between the shaft 10 and each of the gears 41, 42, 43 supported on the outer periphery thereof. Therefore, it is possible to provide a compact and inexpensive lubrication mechanism for the transmission.
【００１９】また、本実施形態においては、矢印Ｃ１に
示すように潤滑油が右斜め上方から溝に流れてきて、矢
印Ｃ２に示すように潤滑油が左斜め上方から溝に流れて
きて、この２つの潤滑油の流れが溝３４ａ内にて衝突す
る。これにより、潤滑油の流れが矢印Ｃ１または矢印Ｃ
２のどちらか１つであると一旦溝３４ａに流れ込んだ潤
滑油は流れ込んだ側とは逆の壁を越えてこぼれやすい
が、これに比べて溝３４ａ内にて２つの潤滑油の流れが
衝突して勢いがそがれるので、一旦溝３４ａに流れ込ん
だ潤滑油は溝３４ａからこぼれにくくなり、より多くの
潤滑油が溝３４ａに流れ込むこととなる。したがって、
凹部３５を通過する潤滑油をシャフト１０の軸方向穴１
１に効率よく導くことができて、各径方向孔１２，１
３，１４からシャフト１０とその外周に支承された各ギ
ヤ４１，４２，４３との間の相対回転部分に効率よく導
くことができる。In this embodiment, the lubricating oil flows into the groove from diagonally above right as shown by arrow C1, and the lubricating oil flows into the groove from diagonally above left as shown by arrow C2. The two lubricating oil flows collide in the groove 34a. As a result, the flow of the lubricating oil becomes
If any one of the two, the lubricating oil once flowing into the groove 34a is likely to spill over the wall opposite to the side where the lubricating oil has flowed, but the flow of the two lubricating oils collides in the groove 34a. As a result, the lubricating oil once flowing into the groove 34a hardly spills out from the groove 34a, and more lubricating oil flows into the groove 34a. Therefore,
The lubricating oil passing through the recess 35 is supplied to the axial hole 1 of the shaft 10.
1 can be efficiently guided to each of the radial holes 12, 1
3, 14 can be efficiently guided to a relative rotation portion between the shaft 10 and each of the gears 41, 42, 43 supported on the outer periphery thereof.
【００２０】また、本実施形態においては、シャフト１
０が高回転になっても、凹部３５を通過する潤滑油のう
ち案内部３４に形成した溝３４ａの根元に流れ込んだ潤
滑油はその溝３４ａに沿って流れ、溝３４ａの先端から
シャフト１０の軸方向穴１１内にこぼれ落ちることとな
る。したがって、シャフト１０の回転速度が増大して
も、シャフト１０の軸方向穴１１には潤滑油が確実に供
給されて、各径方向孔１２，１３，１４からシャフト１
０とその外周に支承された各ギヤ４１，４２，４３との
間の相対回転部分に潤滑油が確実に供給される。In this embodiment, the shaft 1
Even if the rotation speed of the shaft 0 becomes high, the lubricating oil flowing into the base of the groove 34a formed in the guide portion 34 among the lubricating oil passing through the concave portion 35 flows along the groove 34a, and the leading end of the groove 34a It will spill into the axial hole 11. Therefore, even if the rotation speed of the shaft 10 increases, the lubricating oil is reliably supplied to the axial holes 11 of the shaft 10 and the shaft 1 is transmitted from the radial holes 12, 13, and 14.
The lubricating oil is reliably supplied to the relative rotation between the gear 0 and the gears 41, 42, 43 supported on the outer periphery.
【００２１】なお、上記案内部の溝が案内された潤滑油
を効率よく受け止めるため、潤滑油の連れ廻り方向（回
動方向）に応じた溝の形状となるようにしてもよい。例
えば、潤滑油の回動方向が時計回り（図３の白抜き矢印
で示す）の場合には、溝の左側の壁が右側の壁より高く
なるように形成すればよい。Incidentally, in order to efficiently receive the lubricating oil guided by the groove of the guide portion, the groove may be formed in a shape corresponding to the rotating direction (rotation direction) of the lubricating oil. For example, when the rotation direction of the lubricating oil is clockwise (indicated by a white arrow in FIG. 3), the groove may be formed so that the left wall is higher than the right wall.
【００２２】また、上記実施形態においては、ケース３
０の内壁であってシャフト１０の左端面に対向する部位
に、凹部３５内を連れ廻る潤滑油を案内部３４に形成し
た溝３４ａに案内する案内壁を二つだけ（第１案内壁お
よび第２案内壁３５ａ，３６ａ）形成するようにした
が、案内壁の個数および配置は適宜変更して形成するよ
うにしてもよい。In the above embodiment, the case 3
The inner wall of the shaft 0 and a portion facing the left end surface of the shaft 10 have only two guide walls (the first guide wall and the second guide wall) for guiding the lubricating oil traveling inside the concave portion 35 into the groove 34 a formed in the guide portion 34. Although the two guide walls 35a and 36a) are formed, the number and arrangement of the guide walls may be changed as appropriate.
【図１】 本発明の一実施形態を示す図である。FIG. 1 is a diagram showing one embodiment of the present invention.
【図２】 図１の円で囲んだ部分Ａの拡大断面図であ
る。FIG. 2 is an enlarged sectional view of a portion A surrounded by a circle in FIG.
【図３】 図１および図２に示したケースの油室形成部
分の内面図である。FIG. 3 is an inner view of an oil chamber forming portion of the case shown in FIGS. 1 and 2;
１０…シャフト、１１…軸方向穴、１２，１３，１４…
径方向孔、２０…ベアリング、３０…ケース、３１…供
給通路、３２…排出通路、３３…取付穴、３４…案内
部、３４ａ…溝、３５…凹部、３５ａ…第１案内壁、３
６…凸部、３６ａ…第２案内壁、４１，４２，４３…変
速ギヤ、４４，４５…同期噛合装置。10: shaft, 11: axial hole, 12, 13, 14 ...
Radial hole, 20 bearing, 30 case, 31 supply passage, 32 discharge passage, 33 mounting hole, 34 guide portion, 34a groove, 35 concave portion, 35a first guide wall, 3
6: convex portion, 36a: second guide wall, 41, 42, 43: transmission gear, 44, 45: synchronous meshing device.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 澤田 中臣 愛知県刈谷市昭和町２丁目３番地 アイシ ン・エンジニアリング株式会社内 Ｆターム(参考） 3J063 AA01 AB02 BA11 CB43 CD42 XD03 XD17 XD32 XD42 XD47 XD72 XD73 XE15 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Nakaomi Sawada 2-3-3 Showa-cho, Kariya-shi, Aichi F-term in Aisin Engineering Co., Ltd. 3J063 AA01 AB02 BA11 CB43 CD42 XD03 XD17 XD32 XD42 XD47 XD72 XD73 XE15
Claims (1)
ングを介して回転自在に軸支されて外周にてギヤを回転
自在に支承し前記一端部側の端面から軸方向に向けて形
成された軸方向穴およびこの軸方向穴から径方向に延び
て外周に開口する径方向孔を有するシャフトからなり、
前記ケース内の潤滑油が前記軸方向穴および径方向孔を
通して前記シャフトとギヤの間の相対回転部分に供給さ
れる変速機の潤滑機構において、 前記ケースの内壁であって前記シャフトの前記端面に対
向する部位に、上側に開いた溝を長手方向に沿って形成
した案内部を前記軸方向穴に所定量だけ入り込むように
突出させて形成し、 前記ケースの内壁であって前記シャフトの前記端面に対
向する部位に、前記潤滑油が通る凹部およびこの凹部内
に突出する凸部を形成し、 前記凹部の内側面および前記凸部の外側面により、それ
ぞれ前記凹部内を前記シャフトの回転に連れ廻る潤滑油
を前記案内部に形成した溝に導く第１案内壁および第２
案内壁を形成したことを特徴とする変速機の潤滑機構。1. A case, and one end of the case is rotatably supported by a bearing via a bearing, and a gear is rotatably supported on an outer periphery of the case and is formed in an axial direction from the end face on the one end side. An axial hole and a shaft having a radial hole extending radially from the axial hole and opening to the outer periphery,
A lubrication mechanism for a transmission in which lubricating oil in the case is supplied to a relative rotating portion between the shaft and the gear through the axial hole and the radial hole, wherein the inner wall of the case and the end face of the shaft A guide portion having an upwardly open groove formed along the longitudinal direction is formed at an opposing portion so as to protrude so as to enter a predetermined amount into the axial hole, and is an inner wall of the case and the end face of the shaft. A concave portion through which the lubricating oil passes and a convex portion protruding into the concave portion are formed in a portion facing the concave portion. The inner surface of the concave portion and the outer surface of the convex portion allow the inside of the concave portion to rotate as the shaft rotates. A first guide wall and a second guide wall for guiding the rotating lubricating oil into a groove formed in the guide portion;
A lubrication mechanism for a transmission, wherein a guide wall is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000379225A JP4570114B2 (en) | 2000-12-13 | 2000-12-13 | Transmission lubrication mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000379225A JP4570114B2 (en) | 2000-12-13 | 2000-12-13 | Transmission lubrication mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002181168A true JP2002181168A (en) | 2002-06-26 |
| JP4570114B2 JP4570114B2 (en) | 2010-10-27 |
Family
ID=18847645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000379225A Expired - Fee Related JP4570114B2 (en) | 2000-12-13 | 2000-12-13 | Transmission lubrication mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4570114B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107682A (en) * | 2019-03-22 | 2019-08-09 | 重庆青山工业有限责任公司 | Shafting lubricates oil guide structure in automotive transmission |
| JP7481188B2 (en) | 2020-07-27 | 2024-05-10 | トヨタ自動車株式会社 | Lubrication structure for vehicle power transmission device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9587731B2 (en) * | 2013-08-27 | 2017-03-07 | Kawasaki Jukogyo Kabushiki Kaisha | Lubricating apparatus for rotating shaft |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55100463A (en) * | 1979-01-23 | 1980-07-31 | Nissan Motor Co Ltd | Blind plug in transmission gear box |
| JPS567194U (en) * | 1979-06-28 | 1981-01-22 | ||
| JPH07239011A (en) * | 1994-02-24 | 1995-09-12 | Mazda Motor Corp | Lubricating structure of power transmission for 4-wheel drive vehicle |
| JP2000081117A (en) * | 1998-09-03 | 2000-03-21 | Aisin Ai Co Ltd | Lubrication mechanism for transmission |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6081595A (en) * | 1983-10-07 | 1985-05-09 | Nissan Motor Co Ltd | Lubricating mechanism for outer periphery of rotary shaft |
-
2000
- 2000-12-13 JP JP2000379225A patent/JP4570114B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55100463A (en) * | 1979-01-23 | 1980-07-31 | Nissan Motor Co Ltd | Blind plug in transmission gear box |
| JPS567194U (en) * | 1979-06-28 | 1981-01-22 | ||
| JPH07239011A (en) * | 1994-02-24 | 1995-09-12 | Mazda Motor Corp | Lubricating structure of power transmission for 4-wheel drive vehicle |
| JP2000081117A (en) * | 1998-09-03 | 2000-03-21 | Aisin Ai Co Ltd | Lubrication mechanism for transmission |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107682A (en) * | 2019-03-22 | 2019-08-09 | 重庆青山工业有限责任公司 | Shafting lubricates oil guide structure in automotive transmission |
| JP7481188B2 (en) | 2020-07-27 | 2024-05-10 | トヨタ自動車株式会社 | Lubrication structure for vehicle power transmission device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4570114B2 (en) | 2010-10-27 |
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