JPH0425623A - Lublication device for multi-disc clutch - Google Patents

Lublication device for multi-disc clutch

Info

Publication number
JPH0425623A
JPH0425623A JP12632390A JP12632390A JPH0425623A JP H0425623 A JPH0425623 A JP H0425623A JP 12632390 A JP12632390 A JP 12632390A JP 12632390 A JP12632390 A JP 12632390A JP H0425623 A JPH0425623 A JP H0425623A
Authority
JP
Japan
Prior art keywords
clutch
oil
lublication
plate
oil passage
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.)
Pending
Application number
JP12632390A
Other languages
Japanese (ja)
Inventor
Mitsuo Watashi
渡士 光雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP12632390A priority Critical patent/JPH0425623A/en
Publication of JPH0425623A publication Critical patent/JPH0425623A/en
Pending legal-status Critical Current

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  • Mechanical Operated Clutches (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

PURPOSE:To prevent wear of a sliding face and seizure upon half clutch operation by providing an oil reservoir for storing lublicant fed from a second oil passage to a diametrical direction at a part between both axial end parts of engaging means for male and female parts of clutch discs, and supply lublicant to a part between the clutch discs. CONSTITUTION:A first oil passage 26 is formed at a body part 21 and a front wall part 22 of a clutch case 20, and lublication oil which has lublicated a bearing 25 reaches a hollow part 28 at the center of a shaft. A second oil passage 31 communicated with the hollow part 28 is formed on the axial center of a second transmission shaft 5 to pass lublication oil to the radial outside direction through a passage 32. In an engaging means for male and female parts of clutch discs 36, 39, a projection 49 is formed at the inner diametrical part of the follower clutch disc 39. By forming such projections alternately, an oil reserving part 50 is formed with respect to an inner cylindrical part 37 in a follower side mounting body 35 between both end parts in the axial direction. At the inner cylindrical part 37 a through hole 48 is formed in a face-to-face relation with a through hole 32 and the lublication oil fed through the through hole 48 lublicates the sliding faces of the clutch discs 36, 39, especially at the time of half clutch operation.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、多板クラッチの潤滑装置に係り、トラクタの
主クラッチ等に用いられる。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a lubricating device for a multi-disc clutch, and is used for a main clutch of a tractor, etc.

(従来の技術) トラクタの主クラッチに用いられている多板クラッチに
おいて、クラッチ軸心から径外方向に潤滑油を供給して
原動クラッチ板と従動クラッチ板との摺接面番こ潤滑油
を供給して所謂半クラツチ時の摩耗を防止した潤滑装置
が従来使用されていた。
(Prior art) In a multi-disc clutch used in the main clutch of a tractor, lubricating oil is supplied radially outward from the clutch shaft to apply the lubricating oil to the sliding surfaces between the driving clutch plate and the driven clutch plate. Conventionally, lubricating devices have been used which prevent wear during so-called half-clutching.

(発明が解決しようとする課題) しかし、従来の多板クラッチにおける潤滑装置にあって
は、軸方向に並列されたクラッチ板の軸方向全体に亘っ
て潤滑油をまんべんなく供給することが困難で、このた
め、所謂半クラツチ時の摩耗、焼付けが激しいものであ
った。
(Problems to be Solved by the Invention) However, with conventional lubrication devices for multi-disc clutches, it is difficult to supply lubricating oil evenly over the entire axial direction of the clutch plates arranged in parallel in the axial direction. For this reason, wear and seizure during so-called half-clutching were severe.

本発明は、従動クラッチ板間に、油溜り部を設けること
によって、クラッチ摺接面に必要かつ充分な潤滑油を供
給することで、前述した従来技術の問題点を解決したこ
とを目的とする。
An object of the present invention is to solve the problems of the prior art described above by supplying necessary and sufficient lubricating oil to the clutch sliding surfaces by providing an oil reservoir between the driven clutch plates. .

(課題を解決するための手段) 本発明は、クラッチケース20に内装した多板クラッチ
4におけるクラッチ板36.39の潤滑装置であって、
潤滑油が、クラッチケース20に形成した第1油路26
から、クラッチ4の内周に位置する伝動軸5に形成した
第2油路21を通って、クラッチ板36.39の内周側
から径外方に供給されるものにおいて、前述の目的を達
成するために、次の技術的手段を講じている。
(Means for Solving the Problems) The present invention is a lubricating device for clutch plates 36 and 39 in a multi-plate clutch 4 internally housed in a clutch case 20, comprising:
Lubricating oil flows through the first oil passage 26 formed in the clutch case 20.
The above-mentioned objective is achieved by supplying oil from the inner circumferential side of the clutch plate 36. In order to do so, we have taken the following technical measures.

すなわち、本発明は、従動側取付体35の外周上に、雄
・雌係合手段38を介して軸方向移動可能で周方向に係
合している従動クラッチ板39の、軸方向両端間に、前
記第2油路31からの潤滑油を保留する油溜り部50を
設けていることを特徴とするものである。
That is, the present invention provides a structure in which a driven clutch plate 39, which is movable in the axial direction and engaged in the circumferential direction on the outer periphery of the driven side mounting body 35 via the male/female engagement means 38, is provided between both ends in the axial direction. , is characterized in that an oil reservoir 50 is provided for retaining lubricating oil from the second oil passage 31.

(作  用) 第2油路31から径外方向に供給した潤滑油は、従動側
取付板35の雄・雌係合手段38において形成した油溜
り部50に保留され、この保留した潤滑油にて半クラツ
チ時におけるクラッチ摺接面を冷却・潤滑する。
(Function) The lubricating oil supplied in the radially outward direction from the second oil passage 31 is retained in the oil reservoir portion 50 formed in the male/female engagement means 38 of the driven side mounting plate 35, and the lubricating oil supplied in this retained lubricating oil is Cools and lubricates the clutch sliding surface when the clutch is half-engaged.

(実施例) 以下、図面を参照して本発明の詳細な説明する。(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

第4図において、1はエンジンフライホイールで、カッ
プリング2を介して第1伝動軸3が連結されている。
In FIG. 4, reference numeral 1 denotes an engine flywheel, to which a first transmission shaft 3 is connected via a coupling 2.

4は主クラッチで、本発明の対象とする潤滑装置を備え
た多板クラッチであり、これの断接で第2伝動軸5に、
エンジン動力が断続される。
Reference numeral 4 denotes a main clutch, which is a multi-disc clutch equipped with a lubricating device that is the subject of the present invention.
Engine power is intermittent.

6は主変速装置であり、主軸7を挟んで走行系変速軸8
とPTO系変速軸9を備え、主軸7上の伝達ギヤ群10
に咬合する走行系変速ギヤ群11とPTO系変速ギヤ群
12を備えてなり、主軸7はギヤ伝動機構13を介して
第2伝動軸5に連動連結されている。
6 is a main transmission, and a driving system transmission shaft 8 is connected across the main shaft 7.
and a PTO system transmission shaft 9, and a transmission gear group 10 on the main shaft 7.
The main shaft 7 is interlocked with the second transmission shaft 5 via a gear transmission mechanism 13.

14は走行系独立クラッチで、油圧にて断接されて変速
軸8の軸心後方(図では右方)に配置した走行系伝動軸
15に断続される。なお、走行系伝動軸15以降には、
クリープ変速、副変速等が備えられてデフ装置等を経由
して後車輪に連動されている。
Reference numeral 14 denotes a traveling system independent clutch, which is hydraulically connected and disconnected to a traveling system transmission shaft 15 disposed behind the axis of the transmission shaft 8 (to the right in the figure). In addition, after the traveling system transmission shaft 15,
It is equipped with a creep transmission, an auxiliary transmission, etc., and is linked to the rear wheels via a differential device, etc.

16はPTO系独立クラッチで、油圧にて断接されて変
速軸9の軸心後方(図では右方)に配置したPTO系伝
動軸17に断接され、ギヤ伝動機構18を介してPTO
Id119に連動連結されている。
Reference numeral 16 denotes a PTO system independent clutch, which is hydraulically connected and disconnected to a PTO system transmission shaft 17 located behind the shaft center of the transmission shaft 9 (to the right in the figure), and is connected to and disconnected from the PTO system transmission shaft 17 via a gear transmission mechanism 18.
It is linked to Id119.

第1図及び第2図を参照すると、多板クラッチ4の詳細
が図示されている。
Referring to FIGS. 1 and 2, details of the multi-disc clutch 4 are illustrated.

第1図において、20はクラッチケースで、胴部21と
前壁部22とから椀形に形成され、胴部21がクラッチ
ハウジング23にボルト24で取付けられていて、この
クラッチケース20に、多板クラッチ4が内装されてい
る。
In FIG. 1, reference numeral 20 denotes a clutch case, which is formed into a bowl shape by a body part 21 and a front wall part 22, and the body part 21 is attached to a clutch housing 23 with bolts 24. A plate clutch 4 is installed inside.

クラッチケース20における前壁部22の中心に、第1
伝動軸3が貫通されて軸受25で支持されている。
At the center of the front wall portion 22 of the clutch case 20, a first
The transmission shaft 3 is passed through and supported by a bearing 25.

クラッチケース20の胴部21と前壁部22に、それぞ
れ潤滑油のための第1油路26が形成され、軸受251
澗滑してから第1伝動軸3の後端に形成した径方向通孔
27を介して軸中心の空胴部28に至るようになってい
る。
First oil passages 26 for lubricating oil are formed in the body 21 and front wall 22 of the clutch case 20, respectively, and the bearing 251
After sliding, it reaches a cavity 28 at the center of the shaft via a radial through hole 27 formed at the rear end of the first power transmission shaft 3.

なお、通孔27近傍にてはオイルシール29Aを有して
いる。
Note that an oil seal 29A is provided near the through hole 27.

第2伝動軸5はこの前端が第1伝動軸3の後端ボス29
に軸受30を介して支持され、第2伝動軸5の軸心上に
は、前記空胴部28に連通する第2油路31が形成され
、径方向の通孔32を介して潤滑油を径外方向に供給可
能としている。
The front end of the second transmission shaft 5 is the rear end boss 29 of the first transmission shaft 3.
A second oil passage 31 is formed on the axis of the second transmission shaft 5 and communicates with the cavity 28, through which lubricating oil is supplied through a radial through hole 32. It can be supplied radially outward.

クラッチケース20に内装される多板クラッチ4は、後
端ボス29上に中心部をスプライン接合した椀形状の原
動側取付体33と、第2伝動軸5に中心部をカップリン
グ34を介して取付けている椀形の従動側取付体35と
、原動側取付体33の係合部33Aに周方向に対して係
合されかつ軸方向には移動可能な原動クラッチ板36と
、従動側取付体35の内筒胴部37上に、雄・離係合手
段38を介して周方向に対して係合されかつ軸方向には
移動可能な従動クラッチ板38とを備えていて、両クラ
ッチ板36.39を軸方向に列設している。
The multi-disc clutch 4 housed in the clutch case 20 has a bowl-shaped driving side mounting body 33 whose center portion is spline-connected to the rear end boss 29 and a center portion connected to the second power transmission shaft 5 via a coupling 34. The attached bowl-shaped driven side mounting body 35, the driving clutch plate 36 that is engaged in the circumferential direction with the engaging portion 33A of the driving side mounting body 33 and is movable in the axial direction, and the driven side mounting body 35 is provided with a driven clutch plate 38 that is engaged in the circumferential direction via a male/disengagement means 38 and movable in the axial direction, and both clutch plates 36 .39 are arranged in a row in the axial direction.

更に、レリーズベアリング40のホルダー41には、ボ
ルト42を介してプレフシ中プレート43がホルダー4
1と軸方向の間隔を有して前側に取付けられていて、こ
のプレフシ中プレート43は、従動側取付体35におけ
る内筒胴部37に形成したボス部44上で軸方向摺動自
在とされている。
Further, a pre-flexible medium plate 43 is attached to the holder 41 of the release bearing 40 via a bolt 42.
1 and is attached to the front side with an axial spacing therebetween, and this prefix intermediate plate 43 is slidable in the axial direction on a boss portion 44 formed on the inner cylinder body portion 37 of the driven side attachment body 35. ing.

従動側取付体35における内筒胴部37には軸方向後方
に受板45が張出状に形成され、この受板45と前記の
プレッシャプレート43間に、前述したクラッチ板36
.39が軸方向に並設されている。
A receiving plate 45 is formed in the inner cylinder body 37 of the driven side mounting body 35 in a projecting shape rearward in the axial direction, and between this receiving plate 45 and the pressure plate 43, the aforementioned clutch plate 36 is formed.
.. 39 are arranged in parallel in the axial direction.

従動側取付体35における内筒胴部37とホルダー41
との間に、コイルスプリング46が介在されていて、受
板45とプレッシャプレート43間で多板クラッチ36
 、39を挟持すべく圧接しており、ここに、クラッチ
接状態とされている。
Inner cylinder body 37 and holder 41 in driven side attachment body 35
A coil spring 46 is interposed between the receiving plate 45 and the pressure plate 43.
, 39 are pressed against each other, and the clutch is in contact with the clutch.

従って、レリーズベアリング40のホルダー41は第2
伝動軸5上を、レリーズフォーク47により操作可能で
、このフォーク47を矢示Aの方向に揺動すると、プレ
ッシャプレート43は図では左方に摺動され、スプリン
グ46を圧縮し、ここに、クラッチ断となるようにされ
ている。
Therefore, the holder 41 of the release bearing 40 is
The transmission shaft 5 can be operated by a release fork 47, and when this fork 47 is swung in the direction of arrow A, the pressure plate 43 is slid to the left in the figure, compressing the spring 46, and here, The clutch is designed to disconnect.

ここにおいて、従動側取付体35における内筒胴部37
には、前述した通孔32と相対して通孔48が形成され
、この通孔48を介して送液された潤滑油でクラッチ板
36.39の摺接面を特に、半クラツチ時に潤滑するよ
うにされている。
Here, the inner cylinder body 37 of the driven side attachment body 35
A through hole 48 is formed opposite to the aforementioned through hole 32, and the lubricating oil sent through the through hole 48 lubricates the sliding surfaces of the clutch plates 36 and 39, especially when the clutch is half-engaged. It is like that.

このため、第2図で示す如く、雄・離係合手段38にお
ける従動クラッチ板39の内径部に形成した突起49を
、例えば、周方向のひとつおきに切欠することにより、
内筒胴部37との間に油溜り部5oを軸方向両端部間に
形成しているのであり、第1図の第1実施例では軸方向
2ケ所に油溜り部5oを、周方向に間隔を有して形成し
ており、第3図の第2実施例では、軸方向に1ケの油溜
り部50を形成している。従って、従動クラッチ板39
のうち、軸方向両端のクラッチ板39は突起49をすべ
て有しているも、その間のクラッチ板39は突起49が
周方向の適所において切欠されている。
For this reason, as shown in FIG. 2, the protrusions 49 formed on the inner diameter part of the driven clutch plate 39 in the male/disengaging means 38 are cut out, for example, at every other position in the circumferential direction.
Oil reservoirs 5o are formed between the inner cylinder body 37 and both ends in the axial direction, and in the first embodiment shown in FIG. In the second embodiment shown in FIG. 3, one oil reservoir 50 is formed in the axial direction. Therefore, the driven clutch plate 39
Of these, the clutch plates 39 at both ends in the axial direction have all the protrusions 49, but the protrusions 49 in the clutch plates 39 between them are cut out at appropriate positions in the circumferential direction.

その他、第1図において、51は連廻り防止用ブレーキ
板で、クラッチ断のときの連廻りを防止すべくクラッチ
ケース20の端面に圧接される。なお、52は緩衝バネ
装置、53はクラッチ板36.39に径外方向から潤滑
油を送るための油路を示している。
Additionally, in FIG. 1, reference numeral 51 denotes a brake plate for preventing continuous rotation, which is pressed against the end surface of the clutch case 20 to prevent continuous rotation when the clutch is disengaged. Note that 52 indicates a buffer spring device, and 53 indicates an oil path for sending lubricating oil to the clutch plates 36 and 39 from the radial direction.

第5図、第6図はPTO系独立クラッチ16を示し、機
械式の連廻り防止ブレーキ61を備えた場合でも、PT
O軸19をギヤ伝動機構18等を介して回動できるよう
にしたもので、これはPTO軸19と作業機ジヨイント
軸との連結におけるスプライン接合の容易化を図ってい
る。
5 and 6 show the PTO system independent clutch 16, and even when equipped with a mechanical continuous rotation prevention brake 61, the PTO system independent clutch 16 is
The O-shaft 19 is rotatable via a gear transmission mechanism 18, etc., and this facilitates the spline connection between the PTO shaft 19 and the work machine joint shaft.

すなわち、ブレーキ61が作動しても、PTO軸19を
手動で回動可能にすべくブレーキプレート57を矢示B
の如く自由に回動すべく、突起57Aを1ケにしたもの
で、ブレーキ61の突片61Aもケース突起16Aに1
ケ所で係合するようにしている。これは、特に、エンジ
ン停止状態でのPTO軸の連結に有利となる。
That is, even if the brake 61 is activated, the brake plate 57 is moved in the direction indicated by the arrow B in order to enable manual rotation of the PTO shaft 19.
The protrusion 57A is made into one piece so that it can rotate freely as shown in FIG.
It is designed to engage in several places. This is particularly advantageous for connecting the PTO shaft when the engine is stopped.

なお、第5図、第6図において、54ば従動盤で、この
外周に機械式ブレーキ61を有している。55はピスト
ンで、プレンシャプレート60を介して原動盤56上の
ブレーキディスク57を圧接可能である。
In FIGS. 5 and 6, reference numeral 54 denotes a driven plate, which has a mechanical brake 61 on its outer periphery. A piston 55 can press against a brake disc 57 on a driving disk 56 via a pressure plate 60.

58は受板盤で、ピン59Aを介してプレート60に結
合され、戻しスプリング59が作用している。
Reference numeral 58 denotes a receiving plate, which is connected to the plate 60 via a pin 59A, and has a return spring 59 acting thereon.

(発明の効果) 本発明は、第2油路から径外方向に送られた潤滑油を保
留する油溜り部を、クラッチ板における雄・離係合手段
の軸方向両端間に形成しているので、クラッチ板間に潤
滑油を送液できて、これは、半クラツチ時のクラッチ摺
動面の摩耗、焼付を確実に防止できて耐久性が向上でき
る。
(Effects of the Invention) According to the present invention, an oil reservoir portion for retaining lubricating oil sent radially outward from the second oil passage is formed between both ends in the axial direction of the male/disengaging means in the clutch plate. Therefore, lubricating oil can be sent between the clutch plates, which reliably prevents wear and seizure of the clutch sliding surface when the clutch is half-engaged, and improves durability.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明の実施例を示し、第1図は縦断側面図、第
2図は要部の縦断正面図、第3図は第2実施例の要部縦
断側面図、第4図はトラクタミッションに組込んだ縦断
側面図、第5図はPTO独立クラッチの縦断側面図、第
6図は同要部の縦断正面図である。 4・・・多板クラッチ、5・・・伝動軸、2o・・・ク
ラッチケース、26・・・第1油路、31・・・第2油
路、36.39川クラツチ板、35・・・従動側取付体
、50・・・油溜り部。
The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal side view, Fig. 2 is a longitudinal sectional front view of the main part, Fig. 3 is a longitudinal sectional side view of the main part of the second embodiment, and Fig. 4 is a tractor transmission. FIG. 5 is a vertical side view of the PTO independent clutch, and FIG. 6 is a vertical front view of the same essential parts. 4... Multi-plate clutch, 5... Transmission shaft, 2o... Clutch case, 26... First oil passage, 31... Second oil passage, 36.39 River clutch plate, 35... - Driven side mounting body, 50...oil sump part.

Claims (1)

【特許請求の範囲】[Claims] (1)クラッチケース(20)に内装した多板クラッチ
(4)におけるクラッチ板(36)(39)の潤滑装置
であって、潤滑油が、クラッチケース(20)に形成し
た第1油路(26)から、クラッチ(4)の内周に位置
する伝動軸(5)に形成した第2油路(21)を通って
、クラッチ板(36)(39)の内周側から径外方に供
給されるものにおいて、 従動側取付体(35)の外周上に、雄・雌係合手段(3
8)を介して軸方向移動可能で周方向に係合している従
動クラッチ板(39)の、軸方向両端間に、前記第2油
路(31)からの潤滑油を保留する油溜り部(50)を
設けていることを特徴とする多板クラッチの潤滑装置。
(1) A lubricating device for clutch plates (36) and (39) in a multi-plate clutch (4) installed in a clutch case (20), in which lubricating oil is supplied to a first oil passage ( 26), passes through a second oil passage (21) formed in the transmission shaft (5) located on the inner periphery of the clutch (4), and radially outward from the inner periphery of the clutch plates (36) and (39). In the supplied one, male/female engagement means (3
an oil reservoir portion for retaining lubricating oil from the second oil passage (31) between both ends in the axial direction of the driven clutch plate (39) which is movable in the axial direction and engaged in the circumferential direction via the driven clutch plate (39); (50) A multi-disc clutch lubricating device characterized by comprising: (50).
JP12632390A 1990-05-15 1990-05-15 Lublication device for multi-disc clutch Pending JPH0425623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12632390A JPH0425623A (en) 1990-05-15 1990-05-15 Lublication device for multi-disc clutch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12632390A JPH0425623A (en) 1990-05-15 1990-05-15 Lublication device for multi-disc clutch

Publications (1)

Publication Number Publication Date
JPH0425623A true JPH0425623A (en) 1992-01-29

Family

ID=14932344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12632390A Pending JPH0425623A (en) 1990-05-15 1990-05-15 Lublication device for multi-disc clutch

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5722524A (en) * 1995-05-10 1998-03-03 Exedy Corporation Dry multi-disk clutch
JP2008138792A (en) * 2006-12-04 2008-06-19 Nsk Warner Kk Starting clutch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5722524A (en) * 1995-05-10 1998-03-03 Exedy Corporation Dry multi-disk clutch
JP2008138792A (en) * 2006-12-04 2008-06-19 Nsk Warner Kk Starting clutch

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