JPH10169668A - Lubricant supply mechanism of wet type multi-plate clutch - Google Patents
Lubricant supply mechanism of wet type multi-plate clutchInfo
- Publication number
- JPH10169668A JPH10169668A JP32970396A JP32970396A JPH10169668A JP H10169668 A JPH10169668 A JP H10169668A JP 32970396 A JP32970396 A JP 32970396A JP 32970396 A JP32970396 A JP 32970396A JP H10169668 A JPH10169668 A JP H10169668A
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- oil passage
- output shaft
- passage
- spline gear
- 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
- 239000000314 lubricant Substances 0.000 title abstract 11
- 239000010687 lubricating oil Substances 0.000 claims description 134
- 239000003921 oil Substances 0.000 claims description 102
- 230000002093 peripheral effect Effects 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 description 19
- 239000010959 steel Substances 0.000 description 19
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000002788 crimping Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Landscapes
- Mechanical Operated Clutches (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、船舶用減速機等の
入力軸・出力軸間に介設される湿式多板クラッチに対す
る潤滑油供給機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating oil supply mechanism for a wet multi-plate clutch provided between an input shaft and an output shaft of a marine speed reducer or the like.
【０００２】[0002]
【従来の技術】従来、船舶用減速機等において、入力軸
・出力軸間に湿式多板クラッチ（油圧クラッチ）を介設
したものは公知となっており、例えば、特開平７−０９
６８９４号公報において開示されている。即ち、出力軸
にスプラインギアを圧接して環設固定し、そのスプライ
ンギアの外周曲面上に複数枚のスチール板を摺動自在に
嵌合し、一方、入力軸に対して出力軸芯方向に摺動自在
に取り付けた複数の摩擦板を、各々、スチール板とスチ
ール板との間に配設して構成したものである。この湿式
多板クラッチのスチール板と摩擦板を、作動油圧にてス
プライン上を摺動させ、全スチール板及び摩擦板を圧着
して、入力軸と出力軸とがクラッチ接合することとな
る。2. Description of the Related Art Conventionally, in a marine speed reducer or the like, a type in which a wet multi-plate clutch (hydraulic clutch) is interposed between an input shaft and an output shaft is known.
No. 6894 discloses this. That is, a spline gear is pressed into contact with the output shaft and fixed in a ring, and a plurality of steel plates are slidably fitted on the outer peripheral curved surface of the spline gear. A plurality of friction plates slidably mounted are each disposed between a steel plate and a steel plate. The steel plate and the friction plate of this wet multi-plate clutch are slid on the spline by operating hydraulic pressure, and all the steel plates and the friction plates are pressed and the input shaft and the output shaft are clutch-joined.
【０００３】また、この湿式多板クラッチに対しては、
特に半クラッチ時における摩擦板やスチール板の焼き付
きを防止するとともに、クラッチ切り操作時に速やかに
摩擦板・スチール板同士が離間する圧力を得るように、
潤滑油が供給される。この潤滑油路として、従来は、前
記の特開平７−０９６８９４号公報に開示されるよう
に、スプラインギア内に、出力軸芯方向の一本の幹油路
より、該スプラインギアの外周曲面に開口する（即ち湿
式多板クラッチに連通する）出力軸径方向の複数の枝油
路を分岐させてなる油路を、複数個、出力軸芯方向に見
て、出力軸周りに放射状に穿孔配設している。そして、
該幹油路より更に出力軸径方向の一本の油路を連接し
て、スプラインギア内周面と出力軸外周面との圧接部分
に開口させており、この開口部に対して、出力軸芯に設
けた潤滑油路より分岐して、出力軸外周部に開口する出
力軸径方向の油路が穿設されている。[0003] Also, for this wet multi-plate clutch,
Especially, in order to prevent seizure of the friction plate and steel plate at the time of half-clutch, and to obtain the pressure to separate the friction plate and steel plate quickly at the time of clutch release operation,
Lubricating oil is supplied. Conventionally, as disclosed in the above-mentioned Japanese Patent Application Laid-Open No. Hei 7-096894, the lubricating oil passage is provided inside the spline gear from one trunk oil passage in the direction of the output shaft center to the outer peripheral curved surface of the spline gear. A plurality of oil passages formed by branching a plurality of branch oil passages that are open (that is, communicate with the wet-type multi-plate clutch) in the radial direction of the output shaft are radially drilled around the output shaft when viewed in the output shaft center direction. Has been established. And
One oil passage in the output shaft radial direction is further connected to the trunk oil passage to open at a press contact portion between the inner peripheral surface of the spline gear and the outer peripheral surface of the output shaft. An oil passage in the radial direction of the output shaft, which branches from the lubricating oil passage provided on the core and opens to the outer peripheral portion of the output shaft, is formed.
【０００４】[0004]
【発明が解決しようとする課題】前記の従来における湿
式多板クラッチに対する潤滑油供給機構では、湿式多板
クラッチへの供給用潤滑油は、スプラインギア内周面と
出力軸外周面との圧接部分より採っており、そのため、
前記の如く、出力軸内において、出力軸芯に設けた潤滑
油路より分岐して、出力軸外周部に開口する出力軸径方
向の油路を穿設しており、この油路からの漏油のため、
スプラインギアと出力軸との圧着が不十分になってしま
うおそれがあった。In the conventional lubricating oil supply mechanism for a wet type multi-plate clutch, the lubricating oil for supplying to the wet type multi-plate clutch is provided at a press contact portion between the inner peripheral surface of the spline gear and the outer peripheral surface of the output shaft. More, and therefore,
As described above, in the output shaft, a lubricating oil passage provided on the output shaft core is branched, and an oil passage in the radial direction of the output shaft that opens to the outer peripheral portion of the output shaft is bored. For oil,
There is a possibility that the crimping between the spline gear and the output shaft may be insufficient.
【０００５】更に、スプラインギア内にて、幹油路を介
して、複数の枝油路に潤滑油が分岐供給される過程にお
いて、潤滑油源（出力軸とスプラインギアとの圧接部）
より距離が遠い枝油路ほど、行き届く潤滑油量が少なく
なる。このように、湿式多板クラッチにおける潤滑油の
供給量が不均等であり、充分に潤滑油が供給されない箇
所では、スチール板や摩擦板の焼き付きが生じてしまう
おそれがある。Further, in a process in which the lubricating oil is branched and supplied to a plurality of branch oil passages through the trunk oil passage in the spline gear, a lubricating oil source (a pressure contact portion between the output shaft and the spline gear).
The farther the branch oil passage, the smaller the amount of lubricating oil that can be reached. As described above, the supply amount of the lubricating oil in the wet multi-plate clutch is not uniform, and in places where the lubricating oil is not sufficiently supplied, seizure of the steel plate or the friction plate may occur.
【０００６】[0006]
【課題を解決するための手段】本発明は、以上のような
課題を解決すべく、次のような手段を用いるものであ
る。まず第一に、入力軸５に接離可能に、出力軸１周囲
に環設固定したスプラインギア２の外周曲面上に取り付
けられる湿式多板クラッチに対して潤滑油を供給するた
めの機構であって、該スプラインギア２にて、その端部
平面に入口開口部を有し、その外周曲面に出口開口部を
有する複数の潤滑油路３を該出力軸１周りに放射状に穿
孔配設し、該スプラインギア２の端部平面に取り付けた
潤滑油ハウジング４内に、該潤滑油路３の入口開口部を
臨ませた湿式多板クラッチの潤滑油供給機構を構成す
る。The present invention uses the following means in order to solve the above problems. First, there is provided a mechanism for supplying lubricating oil to a wet multi-plate clutch mounted on an outer peripheral curved surface of a spline gear 2 fixedly mounted around the output shaft 1 so as to be able to contact and separate from the input shaft 5. In the spline gear 2, a plurality of lubricating oil passages 3 having an inlet opening at an end surface thereof and an outlet opening at an outer peripheral curved surface thereof are radially bored around the output shaft 1; A lubricating oil supply mechanism for a wet-type multi-plate clutch, in which an inlet opening of the lubricating oil passage 3 is exposed, is provided in a lubricating oil housing 4 attached to a flat end surface of the spline gear 2.
【０００７】第二に、前記構成の湿式多板クラッチの潤
滑油供給機構において、各潤滑油路３を、該スプライン
ギア２の端部平面に開口する出力軸芯線と平行な一本の
幹油路３ａと、該スプラインギア２の外周曲面に開口す
る出力軸径方向の複数の枝油路３ｂとを連接して構成
し、該幹油路３ａは、複数の異なる長さのものを設定す
るとともに、各幹油路３ａに連接する枝油路３ｂによる
潤滑油供給域を湿式多板クラッチの全長域の中で限定
し、各潤滑油路３を出力軸１周りに放射状に配設するの
に際しては、幹油路３ａの長さが異なるものを交互に配
設する。Secondly, in the lubricating oil supply mechanism for a wet multi-plate clutch having the above-described configuration, each lubricating oil passage 3 is provided with one stem oil parallel to an output shaft core line opening at an end surface of the spline gear 2. The passage 3a is connected to a plurality of branch oil passages 3b in the radial direction of the output shaft that are opened on the outer peripheral curved surface of the spline gear 2, and the trunk oil passage 3a has a plurality of different lengths. At the same time, the lubricating oil supply area by the branch oil path 3b connected to each trunk oil path 3a is limited within the entire length of the wet multi-plate clutch, and each lubricating oil path 3 is radially arranged around the output shaft 1. At this time, those having different lengths of the trunk oil passages 3a are alternately arranged.
【０００８】更に、第三に、前記構成の湿式多板クラッ
チの潤滑油供給機構において、一潤滑油路３における複
数の枝油路３ｂについて、その幹油路３ａの該スプライ
ンギア２端部平面の入口開口部に近いものほど口径を小
さくする。Thirdly, in the lubricating oil supply mechanism for a wet type multi-plate clutch having the above-described structure, a plurality of branch oil passages 3b in one lubricating oil passage 3 are arranged at the end of the spline gear 2 at the end of the trunk oil passage 3a. The closer to the entrance opening, the smaller the aperture.
【０００９】[0009]
【発明の実施の形態】本発明の湿式多板クラッチの潤滑
油供給機構について、添付の図面を基に説明する。図１
は本発明の潤滑油供給機構を採用する舶用減速機におけ
る湿式多板クラッチ配設部分の側面断面図、図２はスプ
ラインギア２の入力端側正面図、図３は幹油路３ａの長
さを複数設定したスプラインギア２の側面断面図、図４
は幹油路３ａの長さを複数設定し、かつ枝油路３ｂの口
径を複数設定したスプラインギア２の側面断面図であ
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A lubricating oil supply mechanism for a wet multi-disc clutch according to the present invention will be described with reference to the accompanying drawings. FIG.
FIG. 2 is a side cross-sectional view of a portion provided with a wet type multi-plate clutch in a marine reduction gear employing the lubricating oil supply mechanism of the present invention, FIG. 2 is a front view of an input end side of the spline gear 2, and FIG. FIG. 4 is a side sectional view of the spline gear 2 in which a plurality of
FIG. 5 is a side sectional view of the spline gear 2 in which a plurality of lengths of the trunk oil passage 3a are set and a plurality of apertures of the branch oil passage 3b are set.
【００１０】まず、図１より本発明の湿式多板クラッチ
（油圧クラッチ）を有する舶用減速機の概略構成を説明
する。減速機ハウジング 内に、入力軸５が軸支され、
その出力側端に出力軸１の入力端嵌入部１ａが回動自在
に嵌入されて、入力軸５・出力軸１を連接している。該
出力軸１には、減速用ギア（図示せず）が付設されてい
て、減速機ハウジング１０内に内設されている減速用の
諸ギアと噛合して、減速作用を受け、その出力端に連接
されるプロペラ（図示せず）と一体に回転するものであ
る。First, a schematic configuration of a marine speed reducer having a wet multi-plate clutch (hydraulic clutch) according to the present invention will be described with reference to FIG. The input shaft 5 is supported in the reduction gear housing,
The input end fitting portion 1a of the output shaft 1 is rotatably fitted to the output side end, and connects the input shaft 5 and the output shaft 1. The output shaft 1 is provided with a reduction gear (not shown). The output shaft 1 meshes with various reduction gears provided in the reduction gear housing 10 to receive a reduction action. And rotates integrally with a propeller (not shown) connected to the propeller.
【００１１】本発明に係る湿式多板クラッチは、入力軸
５と出力軸１とを直接的にクラッチ接合させて、入力軸
５と同一方向に出力軸１を回転させるための前進用クラ
ッチＣ１として使用されるものである。この前進用クラ
ッチＣ１の構成について説明する。出力軸１にスプライ
ンギア２が圧接されて環設固着されており、スプライン
ギア２外周に形成されるスプラインに沿って、軸方向に
摺動可能に多板状のスチール板６・６・・・が嵌合され
ている。一方、入力軸５の端部には、一体状にクラッチ
ハウジング８が、該スプラインギア２を囲むような状態
で固設されており、該クラッチハウジング８の内周部に
て、摩擦板７・７・・・が、軸方向に摺動自在に嵌合さ
れ、各摩擦板７は、各スチール板６・６間に配設され
る。In the wet multi-plate clutch according to the present invention, the input shaft 5 and the output shaft 1 are directly engaged with each other to form a clutch C1 for rotating the output shaft 1 in the same direction as the input shaft 5. What is used. The configuration of the forward clutch C1 will be described. A spline gear 2 is press-contacted to the output shaft 1 so as to be annularly fixed, and can be slid in the axial direction along a spline formed on the outer periphery of the spline gear 2 so as to be slidable in the axial direction. Are fitted. On the other hand, a clutch housing 8 is integrally fixed to an end of the input shaft 5 so as to surround the spline gear 2. Are fitted slidably in the axial direction, and the friction plates 7 are disposed between the steel plates 6.
【００１２】入力軸５の出力側端には、軸方向に摺動自
在に、前進クラッチ用作動筒９が付設されており、前進
駆動時には、入力軸５内の作動油路５ａ内より供給され
る作動油圧にて、前進クラッチ用作動筒９が押され、ス
チール板６及び摩擦板７を押して摺動させ、全スチール
板６及び摩擦板７を圧着する。この作動油圧を少なくす
れば、前進クラッチ用作動筒９の摺動量が少なくなり、
前進用クラッチＣ１を半クラッチ状態にすることができ
る。なお、図１において、出力軸１より上側に図示され
る前進クラッチＣ１は、前進クラッチ用作動筒９に押さ
れて接合状態となっており、下側に開示されている前進
クラッチＣ１は、前進クラッチ用作動筒９が非作動状態
で、離間状態となっている。図１図示の出力軸１の上側
と下側に図示される前進クラッチＣ１は、実際はスプラ
インギア２周囲に配設される一体のものであり、図１の
ようにバラバラな状態を呈することはあり得ないが、ク
ラッチ接合状態と離間状態とを示すため、便宜上、この
ように図示している。A forward clutch operating cylinder 9 is attached to the output end of the input shaft 5 so as to be slidable in the axial direction, and is supplied from a hydraulic oil passage 5a in the input shaft 5 during forward driving. The operating cylinder 9 for the forward clutch is pushed by the operating hydraulic pressure, and the steel plate 6 and the friction plate 7 are pushed and slid, and the entire steel plate 6 and the friction plate 7 are pressed. If this operating hydraulic pressure is reduced, the sliding amount of the operating cylinder 9 for the forward clutch is reduced,
The forward clutch C1 can be brought into the half clutch state. In FIG. 1, the forward clutch C1 illustrated above the output shaft 1 is pushed and engaged by the forward clutch operating cylinder 9, and the forward clutch C1 disclosed on the lower side is a forward clutch. The clutch operating cylinder 9 is in a non-operating state and is in a separated state. The forward clutch C1 illustrated on the upper side and the lower side of the output shaft 1 illustrated in FIG. 1 is actually an integral one disposed around the spline gear 2, and may exhibit a disjointed state as illustrated in FIG. Although it is not possible to obtain the clutch engagement state and the disengagement state, they are illustrated in this manner for convenience.
【００１３】なお、減速機ハウジング１１内にて、その
他の湿式多板クラッチ（油圧クラッチ）として、後進用
クラッチＣ２が内設されている。後進駆動時には、後進
クラッチ用作動筒１２が、作動油圧にて後進クラッチＣ
２を接合し、ギア機構を介して、出力軸１を入力軸５と
は反対方向に回転させる。（この時、前進クラッチＣ１
は離間されているので、出力軸１は入力軸５に対して自
由に回動自在となっている。）In the reduction gear housing 11, a reverse clutch C2 is provided as another wet multi-plate clutch (hydraulic clutch). At the time of reverse drive, the reverse clutch working cylinder 12 is driven by the reverse hydraulic clutch C by operating hydraulic pressure.
2 and the output shaft 1 is rotated in the direction opposite to the input shaft 5 via the gear mechanism. (At this time, the forward clutch C1
Are separated, the output shaft 1 is freely rotatable with respect to the input shaft 5. )
【００１４】本発明に係る湿式多板クラッチである前進
クラッチＣ１への潤滑油供給機構について図１乃至図４
より説明する。スプラインギア２の中心部にて、出力軸
１を嵌合するための出力軸孔２ａを貫通させるととも
に、その入力軸５への連接側の端部平面には、図１の如
くに潤滑油ハウジング４を内嵌可能に、潤滑油室用凹部
２ｂを凹設している。そして、該スプラインギア２内に
おいて、潤滑油室凹部２ｂにおける該端部平面に入口開
口部を有し、かつ、外周曲面に出口開口部を有して、両
開口部を連通する潤滑油路３・３・・・を、図２の如
く、出力軸孔２ａの周りに放射状に配設している。FIGS. 1 to 4 show a mechanism for supplying lubricating oil to a forward clutch C1, which is a wet multi-plate clutch according to the present invention.
A more detailed description will be given. At the center of the spline gear 2, an output shaft hole 2 a for fitting the output shaft 1 is penetrated, and a lubricating oil housing is provided on an end flat surface of the spline gear 2 connected to the input shaft 5 as shown in FIG. The lubricating oil chamber concave portion 2b is recessed so as to be able to fit the lug 4 inside. In the spline gear 2, a lubricating oil passage 3 having an inlet opening in the end flat surface of the lubricating oil chamber concave portion 2b and an outlet opening in the outer peripheral curved surface communicates the two openings. Are arranged radially around the output shaft hole 2a as shown in FIG.
【００１５】各潤滑油路３は、スプラインギア２の端部
平面に入口開口部を有する軸芯線と平行な一本の幹油路
３ａより、スプラインギア２の外周曲面に出口開口部を
有する複数の径方向の枝油路３ｂ・３ｂ・・・を分岐さ
せた構成となっている。Each of the lubricating oil passages 3 has a single main oil passage 3a parallel to an axis having an inlet opening at an end plane of the spline gear 2, and a plurality of outlets having an outlet opening at a curved outer peripheral surface of the spline gear 2. Are branched from the radial branch oil passages 3b.
【００１６】ここで、前進クラッチＣ１への潤滑油の供
給過程について図１より説明する。入力軸５の軸芯線上
に穿設した潤滑油路５ｂに連通すべく、出力軸１の軸芯
線上に潤滑油主路１ｂが穿設されており、該潤滑油主路
１ｂより径方向に連絡油路１ｃが分岐して、潤滑油室凹
部２ｂ内に内嵌した潤滑油ハウジング４の内側に形成さ
れる潤滑油室に連通している。内燃機関が駆動して入力
軸５が回転すると、該潤滑油路５ｂ内を出力軸１に向け
て潤滑油が流れ、該潤滑油主路１ｂ及び連絡油路１ｃを
介して、潤滑油ハウジング４内に形成される潤滑油室に
潤滑油が供給され、該潤滑油室に向けられた各潤滑油路
３の幹油路３ａの入口開口部に潤滑油が導入され、各潤
滑油路３の枝油路３ｂ・３ｂ・・・のスプラインギア２
の外周曲面における出口開口部より潤滑油が流出して、
前進クラッチＣ１に潤滑油が供給されるのである。Here, the process of supplying lubricating oil to the forward clutch C1 will be described with reference to FIG. A main lubricating oil passage 1b is formed on the axial core of the output shaft 1 so as to communicate with a lubricating oil passage 5b formed on the axial core of the input shaft 5, and the lubricating oil main passage 1b extends radially from the main lubricating oil passage 1b. The communication oil passage 1c branches off and communicates with a lubricating oil chamber formed inside the lubricating oil housing 4 fitted in the lubricating oil chamber recess 2b. When the internal combustion engine is driven and the input shaft 5 rotates, the lubricating oil flows in the lubricating oil passage 5b toward the output shaft 1, and the lubricating oil housing 4 passes through the lubricating oil main passage 1b and the communication oil passage 1c. Lubricating oil is supplied to a lubricating oil chamber formed therein, and lubricating oil is introduced into an inlet opening of a trunk oil passage 3a of each lubricating oil passage 3 directed to the lubricating oil chamber. Spline gear 2 of branch oil passages 3b
Lubricating oil flows out of the outlet opening on the outer peripheral curved surface of
Lubricating oil is supplied to the forward clutch C1.
【００１７】本発明では、このように、前進クラッチＣ
１への潤滑油を、潤滑油ハウジング４を出力軸１及びス
プラインギア２の端部平面に取り付けて形成した潤滑油
室より導入するものとすることにより、従来技術で述べ
たような、出力軸１外周面とスプラインギア２内周面と
の接合部に潤滑油を供給する油路は不要となり、この油
路からの漏油によって出力軸１とスプラインギア２との
圧着が不十分になるという事態は回避される。According to the present invention, the forward clutch C
1 is introduced from a lubricating oil chamber formed by attaching the lubricating oil housing 4 to the output shaft 1 and the end surface of the spline gear 2 to thereby output the lubricating oil to the output shaft as described in the prior art. An oil passage for supplying lubricating oil to the joint between the outer peripheral surface 1 and the inner peripheral surface of the spline gear 2 becomes unnecessary, and the oil pressure from the oil passage makes the crimping between the output shaft 1 and the spline gear 2 insufficient. Things are avoided.
【００１８】なお、出力軸１よりスプラインギア２を脱
却するには、潤滑油を出力軸１とスプラインギア２との
圧接部に流し込み、この部分に潤滑性を付与して圧着度
を緩和する。この圧油供給のため、出力軸１外周に抜き
用油溝１ｆを設け、抜き用油路１ｄ・１ｅにより、潤滑
油ハウジング４内の潤滑油室に連通させている。該抜き
用油路１ｄの潤滑油室への開口部には、通常、栓１０を
施して、抜き用油路１ｄ・１ｅ・抜き用油溝１ｆに潤滑
油が浸入しないようにしている。そして、スプラインギ
ア２を出力軸１より脱却する時に、該栓１０を抜き、潤
滑油室内の潤滑油を、抜き用油路１ｄ・１ｅを介して抜
き用油溝１ｆに流し込み、該抜き用油溝１ｆからの漏油
が出力軸１外周面とスプラインギア２内周面との間に浸
透して、抜きやすくするのである。In order to remove the spline gear 2 from the output shaft 1, lubricating oil is poured into a pressure contact portion between the output shaft 1 and the spline gear 2, and lubrication is imparted to this portion to reduce the degree of crimping. In order to supply the pressurized oil, a drain oil groove 1f is provided on the outer periphery of the output shaft 1 and communicates with the lubricating oil chamber in the lubricating oil housing 4 by the drain oil passages 1d and 1e. The opening of the draining oil passage 1d to the lubricating oil chamber is usually provided with a plug 10 so that lubricating oil does not enter the draining oil passages 1d, 1e and the draining oil groove 1f. When the spline gear 2 is disengaged from the output shaft 1, the plug 10 is removed, and the lubricating oil in the lubricating oil chamber flows into the draining oil groove 1f via the draining oil passages 1d and 1e. Oil leakage from the groove 1f permeates between the outer peripheral surface of the output shaft 1 and the inner peripheral surface of the spline gear 2 to facilitate drainage.
【００１９】次に、前進用クラッチＣ１の全スチール板
６及び摩擦板７に均等に潤滑油を供給するための潤滑油
路３の構成について説明する。図１図示のスプラインギ
ア２に設けた全潤滑油路３は、全て同一構成、即ち幹油
路３ａの長さは一定で、前進用クラッチＣ１の全長域に
潤滑油を供給するだけの数の枝油路３ｂ・３ｂ・・・を
配設しており、各枝油路３ｂの口径も一定である。この
場合、一本の幹油路３ａに連通する枝油路３ｂの数はか
なり多く、しかも、幹油路３ａの最も奥部に連通する枝
油路３ｂは、該幹油路３ａの入口開口部よりかなり遠く
なっている。このようなことから、幹油路３ａの入口開
口部より遠い枝油路３ｂほど、潤滑油が充分に行き届か
なくなり、この枝油路３ｂより潤滑油を供給される、即
ち、前進クラッチ用作動筒９より遠い部分（以後、潤滑
油路３の入口開口部または前進用作動筒９より遠い側を
奥側、近い側を手前側とする。）のスチール板６や摩擦
板７には、潤滑油が充分に供給されずに、焼き付き等を
発生するおそれがある。Next, the structure of the lubricating oil passage 3 for uniformly supplying the lubricating oil to all the steel plates 6 and the friction plates 7 of the forward clutch C1 will be described. All the lubricating oil passages 3 provided in the spline gear 2 shown in FIG. 1 have the same configuration, that is, the length of the trunk oil passage 3a is constant, and the number of lubricating oils is sufficient to supply lubricating oil to the entire length region of the forward clutch C1. The branch oil passages 3b are arranged, and the diameter of each branch oil passage 3b is also constant. In this case, the number of the branch oil passages 3b communicating with one trunk oil passage 3a is considerably large, and the branch oil passage 3b communicating with the innermost portion of the trunk oil passage 3a is formed at the inlet opening of the trunk oil passage 3a. Is much farther than the department. For this reason, the lubricating oil is not sufficiently supplied to the branch oil passage 3b farther from the inlet opening of the trunk oil passage 3a, and the lubricating oil is supplied from the branch oil passage 3b. The steel plate 6 and the friction plate 7 farther from the cylinder 9 (hereinafter, the inlet opening of the lubricating oil passage 3 or the side farther than the operating cylinder 9 for forward movement is referred to as the back side and the near side as the front side) are lubricated. Oil may not be supplied sufficiently and seizure may occur.
【００２０】奥側のスチール板６や摩擦板７にも充分な
潤滑油が供給されるようにするにはまず、一本の幹油路
３ａに連接する枝油路３ｂの数を減らすことが考えられ
る。そこで、図３図示のスプラインギア２の如く、異な
る長さの幹油路３ａを有する二種類の潤滑油路３（Ａ）
及び３（Ｂ）を構成する。潤滑油路３（Ａ）は、最も奥
側のスチール板６・摩擦板７に対して潤滑油を供給可能
に、前進クラッチＣ１全長分の長さＬ１の幹油路３ａを
有し、この幹油路３ａからは、前進クラッチ用作動筒９
より一定距離Ｌ２以上奥側のスチール板６・摩擦板７に
潤滑油を供給すべく、数を限定して（本実施例では３本
の）枝油路３ｂ・３ｂ・・・を分岐させている。一方、
潤滑油路３（Ｂ）は、潤滑油路３（Ａ）の最も手前側の
枝油路３ｂよりも手前側域のスチール板６・摩擦板７に
潤滑油を供給可能に、一定距離Ｌ２（Ｌ２＜Ｌ１）の長
さの幹油路３ａを有し、この幹油路３ａからはこの域内
でのスチール板６・摩擦板７に潤滑油を供給すべく、数
を限定して（本実施例では３本の）枝油路３ｂ・３ｂ・
・・を分岐させている。To ensure that sufficient lubricating oil is supplied to the steel plate 6 and the friction plate 7 on the back side, first, the number of branch oil passages 3b connected to one trunk oil passage 3a must be reduced. Conceivable. Thus, two types of lubricating oil passages 3 (A) having different lengths of trunk oil passages 3a, like the spline gear 2 shown in FIG.
And 3 (B). The lubricating oil passage 3 (A) has a trunk oil passage 3a having a length L1 corresponding to the entire length of the forward clutch C1 so that lubricating oil can be supplied to the steel plate 6 and the friction plate 7 on the innermost side. From the oil passage 3a, the operating cylinder 9 for the forward clutch
In order to supply the lubricating oil to the steel plate 6 and the friction plate 7 on the rear side more than a certain distance L2, the number is limited and the branch oil passages 3b (three in this embodiment) are branched. I have. on the other hand,
The lubricating oil passage 3 (B) is capable of supplying lubricating oil to the steel plate 6 and the friction plate 7 in a region closer to the front than the foremost branch oil passage 3b of the lubricating oil passage 3 (A). L2 <L1). The number of the main oil passages 3a is limited to supply the lubricating oil to the steel plate 6 and the friction plate 7 in this region from the main oil passages 3a (this embodiment). In the example, three) branch oil passages 3b
・ ・ Is branched.
【００２１】そして、潤滑油路３を出力軸１周りに放射
状に配設するに際しては、図２に示す如く、幹油路３ａ
の長さの異なる潤滑油路３（Ａ）・３（Ｂ）を交互にし
て配設し、前進クラッチＣ１の手前側或いは奥側に潤滑
油が偏在することのないように、その全長域にて均等に
潤滑油が供給されるようにしている。When arranging the lubricating oil passage 3 radially around the output shaft 1, as shown in FIG.
The lubricating oil passages 3 (A) and 3 (B) having different lengths are alternately disposed, and the lubricating oil is distributed over the entire length of the forward clutch C1 so that the lubricating oil is not unevenly distributed on the front side or the back side. So that the lubricating oil is evenly supplied.
【００２２】なお、図３及び図４図示の本実施例では、
幹油路３ａの長さを二種類設定し、二種類の潤滑油路３
（Ａ）・３（Ｂ）を設けいてるが、更に幹油路３ａにつ
いて何種類かの長さを設定し、それに応じて潤滑油路３
の種類を増やしてもよい。こうして構成した潤滑油路３
を出力軸１周りに放射状に配設するに際しては、同様
に、同一の長さの幹油路３ａを有する潤滑油路３が隣り
合わないようにする。In this embodiment shown in FIGS. 3 and 4,
Two types of lengths of the main oil passage 3a are set, and two types of lubrication oil passages 3a are set.
(A) and 3 (B) are provided, but some lengths of the trunk oil passage 3a are further set, and the lubricating oil passage 3
May be increased. Lubricating oil passage 3 thus configured
Are radially arranged around the output shaft 1, similarly, so that the lubricating oil passages 3 having the same length of the main oil passages 3 a are not adjacent to each other.
【００２３】また、図３図示の潤滑油路３（Ａ）・３
（Ｂ）は、全枝油路３ｂの口径が一定である。従って、
一潤滑油路３の中では、どうしても手前側の枝油路３ｂ
ほど潤滑油が多く供給され、奥側ほど少なくなる。そこ
で、更に、一潤滑油路３の中でも、各枝油路３ｂからの
潤滑油の供給量が均一となるようにすべく、図４図示の
スプラインギア２では、一潤滑油路３について、手前側
になるほど枝油路３ｂの口径を小さくしている。即ち、
一幹油路３ａより３本の枝油路３ｂが分岐される構成に
おいて、最も手前側の枝油路３ｂの口径をＲ１、最も奥
側の枝油路３ｂの口径をＲ３、中間の枝油路３ｂの構成
をＲ２とすると、Ｒ１＜Ｒ２＜Ｒ３と設定するのであ
る。このように、手前側の枝油路３ｂの口径が絞られる
ことにより、それより奥側の枝油路３ｂへの潤滑油供給
量を確保でき、一潤滑油路３における全枝油路３ｂから
の潤滑油供給量が均等となるものである。The lubricating oil passages 3 (A) and 3 (A) shown in FIG.
In (B), the diameter of all the branch oil passages 3b is constant. Therefore,
In one lubricating oil passage 3, the branch oil passage 3b on the near side is inevitable.
The more lubricating oil is supplied, the lower the lubricating oil is. Therefore, in order to make the supply amount of the lubricating oil from each of the branch oil passages 3b even in the one lubricating oil passage 3, the spline gear 2 shown in FIG. The diameter of the branch oil passage 3b is reduced toward the side. That is,
In a configuration in which three branch oil passages 3b are branched from the trunk oil passage 3a, the diameter of the foremost branch oil passage 3b is R1, the diameter of the innermost branch oil passage 3b is R3, and the middle branch oil is If the configuration of the road 3b is R2, R1 <R2 <R3 is set. In this manner, by reducing the diameter of the branch oil passage 3b on the front side, it is possible to secure the supply amount of the lubricating oil to the branch oil passage 3b on the back side, and from the entire branch oil passage 3b in one lubricating oil passage 3. The lubricating oil supply amount becomes uniform.
【００２４】[0024]
【発明の効果】本発明は、湿式多板クラッチに対する潤
滑油供給構造について、以上のように構成したので、次
のような効果を奏する。まず、請求項１記載の如く構成
したので、出力軸１に環設固定されるスプラインギア２
の外周面に配設される湿式多板クラッチに対しては、出
力軸１の外周面とスプラインギア２の内周面との圧接部
ではなく、スプラインギア２端部平面に取り付けた潤滑
油ハウジング４内より潤滑油路３を介して潤滑油が供給
されるものであり、即ち、湿式多板クラッチへの潤滑油
供給のために、従来のように、出力軸１内において、出
力軸１の外周面とスプラインギア２の内周面との圧接部
に連通する潤滑油路を穿設する必要がなくなり、該圧接
部にて、該出力軸１内に設けた潤滑油路からの漏油が発
生することにより、出力軸１とスプラインギア２との圧
着が不十分となるという事態が回避される。According to the present invention, the lubricating oil supply structure for the wet multi-plate clutch is configured as described above, and has the following effects. First, since the spline gear 2 is configured as described in claim 1, the spline gear 2 is fixedly mounted around the output shaft 1.
The lubricating oil housing attached to the flat surface of the end of the spline gear 2 instead of the press contact between the outer surface of the output shaft 1 and the inner surface of the spline gear 2 for the wet multi-plate clutch disposed on the outer surface of the spline gear 2 The lubricating oil is supplied from inside the lubricating oil passage 3 through the lubricating oil passage 3. That is, in order to supply the lubricating oil to the wet-type multi-plate clutch, the output shaft 1 There is no need to provide a lubricating oil passage communicating with the press contact portion between the outer peripheral surface and the inner peripheral surface of the spline gear 2, and oil leakage from the lubricating oil passage provided in the output shaft 1 at the press contact portion is eliminated. Due to the occurrence, the situation where the pressure contact between the output shaft 1 and the spline gear 2 becomes insufficient is avoided.
【００２５】そして、潤滑油路３については、請求項２
記載の如く構成することにより、油路３ａの長さ設定に
基づき、各潤滑油路３は、湿式多板クラッチの手前側や
奥側等、潤滑油供給域が限定され、一本の幹油路３ａに
連接する枝油路３ｂの数を削減できる分だけ、各潤滑油
路３における枝油路３ｂへの潤滑油供給量を多く確保で
きる。そして、潤滑油路３を出力軸１周りに放射状に配
設するに際しては、異なる長さの幹油路３ａを有する潤
滑油路３を交互に配設することで、湿式多板クラッチの
全長域に均等に潤滑油を供給することができる。The lubricating oil passage 3 is defined in claim 2
By configuring as described, each lubricating oil passage 3 has a limited lubricating oil supply area such as the front side and the back side of the wet multi-plate clutch based on the length setting of the oil passage 3a, and one trunk oil The amount of lubricating oil supplied to the branch oil passage 3b in each lubricating oil passage 3 can be increased by the amount by which the number of branch oil passages 3b connected to the passage 3a can be reduced. When arranging the lubricating oil passages 3 radially around the output shaft 1, the lubricating oil passages 3 having the trunk oil passages 3a having different lengths are alternately arranged, so that the entire length range of the wet-type multi-plate clutch is provided. Lubricating oil can be supplied evenly.
【００２６】更に、一潤滑油路３における枝油路３ｂに
ついて、請求項３記載の如く構成することにより、幹油
路３ａの開口部に近い側の枝油路３ｂへの潤滑油供給量
が絞られるので、それより奥側の枝油路３ｂへの潤滑油
供給量が多く確保され、一潤滑油路３についても、全枝
油路３ｂからの潤滑油供給量が均等化される。Further, with respect to the branch oil passage 3b in one lubricating oil passage 3, the supply amount of the lubricating oil to the branch oil passage 3b on the side close to the opening of the trunk oil passage 3a can be reduced. Since the throttle oil is narrowed, a large amount of lubricating oil is supplied to the branch oil passage 3b on the far side, and the amount of lubricating oil supplied from all the branch oil passages 3b is equalized for one lubricating oil passage 3 as well.
【００２７】以上の構成により、湿式多板クラッチに
は、その全長域にわたって、充分な量の潤滑油が供給さ
れ、半クラッチ時における焼き付き等の不具合が解消さ
れる。このような湿式多板クラッチへの潤滑油供給機構
を採用することで、例えば、クラッチの焼き付きが発生
せず、クラッチの寿命の長い舶用減速機等を提供するこ
とができるのである。With the above configuration, a sufficient amount of lubricating oil is supplied to the wet multi-plate clutch over the entire length thereof, and problems such as seizure during half-clutching are eliminated. By employing such a lubricating oil supply mechanism to the wet multi-plate clutch, it is possible to provide, for example, a marine reduction gear having a long clutch life without causing clutch seizure.
【図１】本発明の潤滑油供給機構を採用する舶用減速機
における湿式多板クラッチ配設部分の側面断面図であ
る。FIG. 1 is a side sectional view of a portion provided with a wet multi-plate clutch in a marine reducer employing a lubricating oil supply mechanism of the present invention.
【図２】スプラインギア２の入力端側正面図である。FIG. 2 is a front view of an input end of the spline gear 2;
【図３】幹油路３ａの長さを複数設定したスプラインギ
ア２の側面断面図である。FIG. 3 is a side sectional view of the spline gear 2 in which a plurality of lengths of the trunk oil passage 3a are set.
【図４】幹油路３ａの長さを複数設定し、かつ枝油路３
ｂの口径を複数設定したスプラインギア２の側面断面図
である。FIG. 4 shows a case where a plurality of lengths of the trunk oil passage 3a are set, and
FIG. 4 is a side sectional view of a spline gear 2 in which a plurality of apertures b are set.
Ｃ１ 前進クラッチ（湿式多板クラッチ） １ 出力軸 ２ スプラインギア ２ａ 出力軸孔 ２ｂ 潤滑油室用凹部 ３ 潤滑油路 ３ａ 幹油路 ３ｂ 枝油路 ４ 潤滑油ハウジング ５ 入力軸 ６ スチール板 ７ 摩擦板 ８ クラッチハウジング ９ 前進クラッチ用作動筒 １１ 減速機ハウジング C1 forward clutch (wet multi-plate clutch) 1 output shaft 2 spline gear 2a output shaft hole 2b recess for lubricating oil chamber 3 lubricating oil passage 3a trunk oil passage 3b branch oil passage 4 lubricating oil housing 5 input shaft 6 steel plate 7 friction plate 8 Clutch housing 9 Working cylinder for forward clutch 11 Reduction gear housing
Claims (3)
（１）周囲に環設固定したスプラインギア（２）の外周
曲面上に取り付けられる湿式多板クラッチに対して潤滑
油を供給するための機構であって、該スプラインギア
（２）にて、その端部平面に入口開口部を有し、その外
周曲面に出口開口部を有する複数の潤滑油路（３）を該
出力軸（１）周りに放射状に穿孔配設し、該スプライン
ギア（２）の端部平面に取り付けた潤滑油ハウジング
（４）内に、該潤滑油路（３）の入口開口部を臨ませた
ことを特徴とする湿式多板クラッチの潤滑油供給機構。1. A lubricating oil is supplied to a wet multi-plate clutch mounted on an outer peripheral curved surface of a spline gear (2) fixedly mounted around an output shaft (1) so as to be able to contact and separate from an input shaft (5). A plurality of lubricating oil passages (3) having an inlet opening in an end surface of the spline gear (2) and an outlet opening in an outer peripheral curved surface of the output shaft. (1) The inlet opening of the lubricating oil passage (3) is exposed in a lubricating oil housing (4) mounted radially around the spline gear (2) and mounted on an end surface of the spline gear (2). A lubricating oil supply mechanism for a wet multi-plate clutch.
油供給機構において各潤滑油路（３）を、該スプライン
ギア（２）の端部平面に開口する出力軸芯線と平行な一
本の幹油路（３ａ）と、該スプラインギア（２）の外周
曲面に開口する出力軸径方向の複数の枝油路（３ｂ）と
を連接して構成し、該幹油路（３ａ）は、複数の異なる
長さのものを設定するとともに、各幹油路（３ａ）に連
接する枝油路（３ｂ）による潤滑油供給域を湿式多板ク
ラッチの全長域の中で限定し、各潤滑油路（３）を出力
軸（１）周りに放射状に配設するのに際しては、幹油路
（３ａ）の長さが異なるものを交互に配設することを特
徴とする湿式多板クラッチの潤滑油供給機構。2. A lubricating oil supply mechanism for a wet-type multi-plate clutch according to claim 1, wherein each lubricating oil passage (3) is parallel to an output shaft core line opening at an end flat surface of said spline gear (2). The trunk oil passage (3a) is connected to a plurality of branch oil passages (3b) in the radial direction of the output shaft which are opened on the outer peripheral curved surface of the spline gear (2), and the trunk oil passage (3a) , A plurality of different lengths are set, and the lubricating oil supply region by the branch oil passage (3b) connected to each trunk oil passage (3a) is limited within the entire length region of the wet-type multi-plate clutch. When the oil passages (3) are radially arranged around the output shaft (1), those having different lengths of the trunk oil passages (3a) are alternately arranged. Lubricating oil supply mechanism.
油供給機構において一潤滑油路（３）における複数の枝
油路（３ｂ）について、その幹油路（３ａ）の該スプラ
インギア（２）端部平面の入口開口部に近いものほど口
径を小さくしたことを特徴とする湿式多板クラッチの潤
滑油供給機構。3. A lubricating oil supply mechanism for a wet-type multi-plate clutch according to claim 2, wherein a plurality of branch oil passages (3b) in one lubricating oil passage (3) have said spline gear (3a) in said trunk oil passage (3a). 2) A lubricating oil supply mechanism for a wet-type multi-plate clutch, wherein the diameter is smaller as the end is closer to the entrance opening in the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32970396A JP3730344B2 (en) | 1996-12-10 | 1996-12-10 | Lubricating oil supply mechanism for wet multi-plate clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32970396A JP3730344B2 (en) | 1996-12-10 | 1996-12-10 | Lubricating oil supply mechanism for wet multi-plate clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10169668A true JPH10169668A (en) | 1998-06-23 |
| JP3730344B2 JP3730344B2 (en) | 2006-01-05 |
Family
ID=18224329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32970396A Expired - Fee Related JP3730344B2 (en) | 1996-12-10 | 1996-12-10 | Lubricating oil supply mechanism for wet multi-plate clutch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3730344B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020075495A (en) * | 2001-03-24 | 2002-10-05 | 위아 주식회사 | a gear with passage for lubrication |
| JP2008291971A (en) * | 2007-05-28 | 2008-12-04 | Toyota Motor Corp | Friction engaging device, automatic transmission, front-rear wheel driving force distribution device, and right-left wheel driving force distribution device |
| WO2019163763A1 (en) * | 2018-02-20 | 2019-08-29 | いすゞ自動車株式会社 | Clutch lubrication structure |
| JP2020200862A (en) * | 2019-06-07 | 2020-12-17 | 川崎重工業株式会社 | Oil supply structure of wet multiple disc clutch and azimuth thruster |
| KR102567834B1 (en) * | 2022-04-13 | 2023-08-17 | 현대트랜시스 주식회사 | Torque converter |
| JP2024006005A (en) * | 2022-06-30 | 2024-01-17 | 株式会社エフ・シー・シー | Clutch device and motorcycle |
-
1996
- 1996-12-10 JP JP32970396A patent/JP3730344B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020075495A (en) * | 2001-03-24 | 2002-10-05 | 위아 주식회사 | a gear with passage for lubrication |
| JP2008291971A (en) * | 2007-05-28 | 2008-12-04 | Toyota Motor Corp | Friction engaging device, automatic transmission, front-rear wheel driving force distribution device, and right-left wheel driving force distribution device |
| WO2019163763A1 (en) * | 2018-02-20 | 2019-08-29 | いすゞ自動車株式会社 | Clutch lubrication structure |
| JP2019143714A (en) * | 2018-02-20 | 2019-08-29 | いすゞ自動車株式会社 | Clutch lubrication structure |
| CN111868405A (en) * | 2018-02-20 | 2020-10-30 | 五十铃自动车株式会社 | Clutch lubrication structure |
| JP2020200862A (en) * | 2019-06-07 | 2020-12-17 | 川崎重工業株式会社 | Oil supply structure of wet multiple disc clutch and azimuth thruster |
| KR102567834B1 (en) * | 2022-04-13 | 2023-08-17 | 현대트랜시스 주식회사 | Torque converter |
| JP2024006005A (en) * | 2022-06-30 | 2024-01-17 | 株式会社エフ・シー・シー | Clutch device and motorcycle |
| US11879504B1 (en) | 2022-06-30 | 2024-01-23 | Kabushiki Kaisha F.C.C. | Clutch device and motorcycle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3730344B2 (en) | 2006-01-05 |
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