JPH01299325A - Drive force transmitter - Google Patents

Drive force transmitter

Info

Publication number
JPH01299325A
JPH01299325A JP13115488A JP13115488A JPH01299325A JP H01299325 A JPH01299325 A JP H01299325A JP 13115488 A JP13115488 A JP 13115488A JP 13115488 A JP13115488 A JP 13115488A JP H01299325 A JPH01299325 A JP H01299325A
Authority
JP
Japan
Prior art keywords
housing
piston
pressure
hollow hole
end cover
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
JP13115488A
Other languages
Japanese (ja)
Inventor
Shigeo Tanooka
田ノ岡 茂男
Toshibumi Sakai
俊文 酒井
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.)
Toyoda Koki KK
Original Assignee
Toyoda Koki KK
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 Toyoda Koki KK filed Critical Toyoda Koki KK
Priority to JP13115488A priority Critical patent/JPH01299325A/en
Publication of JPH01299325A publication Critical patent/JPH01299325A/en
Pending legal-status Critical Current

Links

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  • Arrangement And Driving Of Transmission Devices (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

PURPOSE:To arrange so that a clutch device may be taken out only by taking an end cover off a housing by storing a piston at an hollow hole of a bottomed cylindrical shape formed at the housing and at the same time, furnishing interveniently the clutch device at a space between the endcover at the end of the opening of the hollow hole and the piston. CONSTITUTION:A hollow chamber 26 of a bottomed cylindrical shape is formed at one end of a housing 21, and a piston 24 is slidably stored at the bottom surface of this hollow chamber 26 with a predetermined opening kept left. A space portion 40 is divided into a plurality of pressure chambers 43 circumferentially by a plurality of plates 42, and these pressure chambers 43 are respectively filled with a high viscous fluid 44 such as silicon oil or the like. An end cover 28 is furnished attachably/detachably at the opening end of the hollow chamber 26 of the housing 21. A clutch device 25 made up of a multi-plate clutch is arranged within a lubrication oil chamber 27.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、相対回転可能な2軸の間に配置され両軸の間
で駆動力を伝達する駆動力伝達装置に関するものである
DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a driving force transmission device that is disposed between two relatively rotatable shafts and transmits driving force between the two shafts.

〈従来の技術〉 一般に、前、後輪間でトルクを伝達する4輪駆動用の駆
動力伝達装置、あるいは左、右輪間でトルクを伝達する
差動制限用の駆動力伝達装置等においては、トルク伝達
用のクラッチ手段と、このクラッチ手段を作動するピス
トンと、前、後輪あるいは左、右輪の差動回転に応じた
圧力を発生する圧力発生部を備え、この発生圧力を作動
ピストンに作用してクラッチ手段を摩擦係合させるよう
になっている。
<Prior Art> Generally, in a four-wheel drive drive force transmission device that transmits torque between the front and rear wheels, or a drive force transmission device for differential restriction that transmits torque between the left and right wheels, etc. , a clutch means for transmitting torque, a piston that operates the clutch means, and a pressure generating section that generates pressure according to the differential rotation of the front and rear wheels or the left and right wheels, and the generated pressure is applied to the operating piston. The clutch means is frictionally engaged.

〈発明が解決しようとする課題〉 この種の駆動力伝達装置においては、長期の使用により
クラッチ手段を構成するプレートが摩耗するため、それ
を交換することが必要となるが、従来の構成のもの(例
えば、本件出願人の出願にかかる特願昭62−7524
0)では、クラッチ手段の交換のために、エンドプレー
トは勿論のこと、圧力発生用の回転部材および高粘度流
動体ならびにピストン等を分解しなければならず、その
交換作業に手間を要する問題があった。
<Problems to be Solved by the Invention> In this type of driving force transmission device, the plates constituting the clutch means wear out due to long-term use, so it is necessary to replace them. (For example, Japanese Patent Application No. 62-7524 filed by the applicant)
0), in order to replace the clutch means, it is necessary to disassemble not only the end plate, but also the rotating member for pressure generation, the high viscosity fluid, the piston, etc., and there is a problem that the replacement work requires time and effort. there were.

く課題を解決するための手段〉 本発明は、上記した従来の問題点に鑑みてなされたもの
で、相対回転可能な2軸の一方にハウジングを連結し、
他方にこのハウジングに回転可能に軸承された回転軸を
連結し、前記ハウジングに有底円筒状の中空穴を形成し
、この中空穴の底面に所定の隙間を存してピストンを収
納し、前記隙間に高粘度流動体を封入し、また前記隙間
に前記2軸の差動回転により高粘度流動体を移動させて
その粘性摩擦により2軸の差動回転に応じた圧力を発生
させる回転部材を収納し、前記ハウジングの中空穴の開
口端にエンドカバーを着脱可能に取付け、このエンドカ
バーと前記ピストンとの間にピストンに作用された圧力
により係合してトルクを伝達するクラッチ手段を介装し
たものである。
Means for Solving the Problems The present invention has been made in view of the above-mentioned conventional problems, and includes a housing connected to one of two relatively rotatable shafts,
A rotary shaft rotatably supported by the housing is connected to the other side, a hollow cylindrical hole with a bottom is formed in the housing, a piston is housed in the bottom of the hollow hole with a predetermined gap, and the A rotating member that seals a high viscosity fluid in the gap, moves the high viscosity fluid in the gap by differential rotation of the two axes, and generates pressure according to the differential rotation of the two axes by the viscous friction. an end cover is removably attached to the open end of the hollow hole of the housing, and a clutch means is interposed between the end cover and the piston to transmit torque by being engaged by pressure applied to the piston. This is what I did.

〈作用〉 上記した構成により、ハウジングと回転軸との間に差動
回転が生ずると、回転部材がハウジングに対して相対回
転され、これによって高粘度流動体が中空穴の底面とピ
ストン端面との2面間で強制移動され、その粘性摩擦に
より隙間内に差動回転に応じた圧力が発生する。この圧
力によりピストンが押圧され、クラッチ手段が係合され
て2軸間でトルクが伝達される。
<Operation> With the above configuration, when differential rotation occurs between the housing and the rotating shaft, the rotating member is rotated relative to the housing, thereby causing the high viscosity fluid to flow between the bottom of the hollow hole and the end surface of the piston. It is forcibly moved between the two surfaces, and the viscous friction generates pressure in the gap according to the differential rotation. This pressure presses the piston, engages the clutch means, and transmits torque between the two shafts.

ところで、長期の使用によりクラッチ手段のプレートが
摩耗し、クラッチ手段を交換する場合には、エンドカバ
ーをハウジングより取り外すのみで、クラッチ手段をハ
ウジングの中空穴より取り出すことができ、ピストンお
よび圧力発生部等に何ら触れることなくクラッチ手段の
交換を容易に行えるようになる。。
By the way, if the plates of the clutch means wear out due to long-term use and the clutch means needs to be replaced, the clutch means can be taken out from the hollow hole of the housing by simply removing the end cover from the housing, and the piston and pressure generating section can be removed. The clutch means can be easily replaced without touching anything. .

〈実施例〉 以下本発明の実施例を図面に基づいて説明する。<Example> Embodiments of the present invention will be described below based on the drawings.

第1図は相対−転回能な2軸(前後輪軸あるいは左右輪
軸)の間に配置される駆動力伝達装置20を示し、この
駆動力伝達装置20ば、ハウジング21と、このハウジ
ング21内を縦貫して回転可能に軸承された回転軸22
と、これらハウジング21と回転軸22との差動回転に
応じた圧力を発生する圧力発生部23と、この圧力発生
部23にて発生した圧力が作用されるピストン24と、
この作動ピストン24の押圧力によって摩擦係合される
クラッチ手段25とによって主に構成されている。
FIG. 1 shows a driving force transmitting device 20 disposed between two relatively rotatable axles (front and rear wheel axles or left and right wheel axles). A rotary shaft 22 rotatably supported by
A pressure generating section 23 that generates pressure according to the differential rotation between the housing 21 and the rotating shaft 22, and a piston 24 on which the pressure generated in the pressure generating section 23 is applied.
It is mainly composed of a clutch means 25 that is frictionally engaged by the pressing force of the actuating piston 24.

前記ハウジング21の一端“は前記2軸の一方15に一
体的に結合され、また前記回転軸22内には前記前記2
軸の他方16がスプライン係合されている。ハウジング
21には、その一端より有底円筒状の中空穴2′6が形
成され、この中空穴26の底面に所定の隙間を存して前
記ピストン24が摺動可能に収納され、このピストン2
4はハウジング21の内周に形成されたスプラインに係
合して回り止めされている。
One end of the housing 21 is integrally connected to one of the two shafts 15, and the two shafts are disposed within the rotating shaft 22.
The other shaft 16 is splined. A cylindrical hollow hole 2'6 with a bottom is formed at one end of the housing 21, and the piston 24 is slidably housed in the bottom surface of the hollow hole 26 with a predetermined gap.
4 is engaged with a spline formed on the inner periphery of the housing 21 to prevent rotation.

前記ハウジング21の底壁とピストン24の端壁との間
には、円筒状の空間部40が形成され、この空間部40
にその軸方向寸法より僅かに小さな肉厚の回転部材41
が摺接可能に収納されている。かかる回転部材41は第
2図に示すように、中心部を前記回転軸22の外周にス
プライン係合され、また直径方向に延びる2枚のブレー
ド42を有している。これにより前記空間部40は、複
数のブレード42によって円周上複数の圧力室43に区
画され、これら各圧力室43にシリコンオイル等の高粘
度流動体44が充填されている。しかして上記した円筒
状空間部40に収納された回転部材41および高粘度流
動体44により前記圧力発生部23を構成している。か
かる圧力発生部23により、前記2軸15.16が相対
回転して前記回転部材41がハウジング21内で相対回
転すると、圧力室43に充填された高粘度流動体44が
ブレード42により、対向する2面間を回転速度差に応
じた流速で強制移動される際に、ハウジング21の底面
および作動ピストン24の端面の両壁面との粘性摩擦に
より圧力室43内に回転部材41の回転速度に比例した
内圧が発生する。
A cylindrical space 40 is formed between the bottom wall of the housing 21 and the end wall of the piston 24.
The rotating member 41 has a wall thickness slightly smaller than its axial dimension.
is housed in a slidable manner. As shown in FIG. 2, the rotating member 41 has a center portion engaged with the outer periphery of the rotating shaft 22 by a spline, and has two blades 42 extending in the diametrical direction. As a result, the space 40 is circumferentially divided into a plurality of pressure chambers 43 by a plurality of blades 42, and each of these pressure chambers 43 is filled with a high viscosity fluid 44 such as silicone oil. The pressure generating section 23 is constituted by the rotating member 41 and the high-viscosity fluid 44 housed in the cylindrical space 40 described above. When the two shafts 15 and 16 are rotated relative to each other by the pressure generating section 23 and the rotating member 41 is rotated relative to each other within the housing 21, the high viscosity fluid 44 filled in the pressure chamber 43 is opposed by the blade 42. When the flow is forcibly moved between the two surfaces at a speed corresponding to the rotational speed difference, a flow proportional to the rotational speed of the rotating member 41 is generated in the pressure chamber 43 due to viscous friction between the bottom surface of the housing 21 and the end surface of the actuating piston 24. An internal pressure is generated.

すなわちこの内圧は、例えばブレード42がハウジング
21に対して矢印方向に回転する場合には、2つのブレ
ード42で囲まれた圧力室43の先行するブレード側面
側をA、後続するブレード側面側をBとすると、B点で
最も高く、A点で最も低い圧力分布となり、圧力室43
にブレード42の回転速度に比例した圧力が発生する。
That is, for example, when the blade 42 rotates in the direction of the arrow with respect to the housing 21, this internal pressure is applied to the pressure chamber 43 surrounded by the two blades 42, with pressure A on the side of the preceding blade and B on the side of the succeeding blade. Then, the pressure distribution will be highest at point B and lowest at point A, and the pressure distribution will be the highest at point B and the lowest at point A.
A pressure proportional to the rotational speed of the blade 42 is generated.

前記ハウジング21の中空室26の開口端にはエンドカ
バー28がサークリップ30により着脱可能に装着され
、これによってエンドカバー28と前記ピストン24と
の間に密閉された潤滑油チャンバ27が形成され、この
潤滑油チャンバ27に潤滑油が封入されている。
An end cover 28 is removably attached to the open end of the hollow chamber 26 of the housing 21 by a circlip 30, thereby forming a sealed lubricating oil chamber 27 between the end cover 28 and the piston 24, This lubricating oil chamber 27 is filled with lubricating oil.

また前記潤滑油チャンバ27内には多板クラッチからな
るクラッチ手段25を構成する複数のアウタプレート3
7とインナプレート38が交互に配置されており、アウ
タプレート37はハウジング21の内周にスプライン係
合され、インチプレート3日は回転軸22の外周に取付
けられたクラッチハブ39にスプライン係合されている
Further, in the lubricating oil chamber 27, there are a plurality of outer plates 3 constituting a clutch means 25 consisting of a multi-plate clutch.
7 and an inner plate 38 are arranged alternately, the outer plate 37 is spline engaged with the inner periphery of the housing 21, and the inch plate 3 is spline engaged with a clutch hub 39 attached to the outer periphery of the rotating shaft 22. ing.

次に上記した構成における駆動力伝達装置の動作につい
て説明する。
Next, the operation of the driving force transmission device with the above configuration will be explained.

2軸の間で相対回転が生ずると、回転部材41がハウジ
ング21に対して例えば第2図の矢印方向に相対回転す
る。従って圧力室43に充填された高粘度流動体44が
、対向する2面間を回転速度差に応じた流速で強制移動
され、高粘度流動体44の粘性摩擦作用により圧力室4
3内に2軸の差動回転に比例した内圧が発生し、ピスト
ン24が押圧される。
When relative rotation occurs between the two axes, the rotating member 41 rotates relative to the housing 21, for example, in the direction of the arrow in FIG. Therefore, the high viscosity fluid 44 filled in the pressure chamber 43 is forcibly moved between the two opposing surfaces at a flow rate corresponding to the rotational speed difference, and due to the viscous frictional action of the high viscosity fluid 44, the pressure chamber 44
Internal pressure proportional to the differential rotation of the two axes is generated within the piston 3, and the piston 24 is pressed.

従って複数のアウタプレート37とインナプレート38
がピストン24に作用する圧力に応じた押圧力で摩擦係
合され、クラッチ手段25を介して2軸間に回転トルク
が伝達される。すなわち、差動回転に対する伝達トルク
は第4図の実線に示すようになる。
Therefore, a plurality of outer plates 37 and inner plates 38
are frictionally engaged by a pressing force corresponding to the pressure acting on the piston 24, and rotational torque is transmitted between the two shafts via the clutch means 25. That is, the transmitted torque for differential rotation is as shown by the solid line in FIG.

ところで、この種の駆動力伝達装置は長期の使用により
クラッチ手段25の各プレート37.38が摩耗してい
、くため、クラッチ手段25の交換を要する場合がある
が、上記した構成によれば、サークリップ30を外して
エンドカバー28をハウジング21から取り外すだけで
、クラッチ手段25をハウジング21の中空穴26から
取り出せるようになり、圧力発生用の回転部材41およ
びピストン24等を分解する必要がないので、クラッチ
手段25の交換を容易に行うことができるようになる。
By the way, in this type of driving force transmission device, each plate 37, 38 of the clutch means 25 becomes worn and worn out due to long-term use, and therefore the clutch means 25 may need to be replaced. However, according to the above-described configuration, By simply removing the circlip 30 and removing the end cover 28 from the housing 21, the clutch means 25 can be taken out from the hollow hole 26 of the housing 21, and there is no need to disassemble the rotating member 41 for pressure generation, the piston 24, etc. Therefore, the clutch means 25 can be replaced easily.

〈発明の効果〉 以上述べたように本発明は、ハウジングに形成 lした
有底円筒状の中空穴の底面に所定の隙間を存してピスト
ンを収納し、前記隙間に高粘度流動体を封入し、また前
記隙間に前記2軸の差動回転により高粘度流動体を移動
させてその粘性摩擦はより2軸の差動回転に応じた圧力
を発生させる回転部材を収納し、前記ハウジングの中空
穴の開口端にエンドカバーを着脱可能に取付け、このエ
ンドカバーと前記ピストンとの間にピストンに作用され
た圧力により係合してトルクを伝達するクラッチ手段を
介装した構成であるので、長期の使用により摩耗したク
ラッチ手段の交換を、圧力発生用の回転部材あるいはピ
ストンを分解することなく行えるようになり、交換作業
が容易となる効果がある。
<Effects of the Invention> As described above, the present invention provides a method for housing a piston with a predetermined gap at the bottom of a bottomed cylindrical hollow hole formed in a housing, and filling the gap with a high-viscosity fluid. Further, a rotating member is housed in the gap to move a high viscosity fluid by the differential rotation of the two axes, and the viscous friction generates a pressure corresponding to the differential rotation of the two axes, and the rotation member is arranged in the hollow of the housing. An end cover is removably attached to the open end of the hole, and a clutch means is interposed between the end cover and the piston to transmit torque by engaging with the pressure applied to the piston. By using this, the worn clutch means can be replaced without disassembling the pressure generating rotating member or the piston, which has the effect of making the replacement work easier.

しかも本発明によれば、剛性の高いハウジングの底部に
ピストンの収納部を形成したので、端面直角度、真円度
等の加工精度を向上でき、ピストンの円滑な運動を行い
得る効果も併せて奏せられる。
Moreover, according to the present invention, since the piston storage portion is formed at the bottom of the highly rigid housing, machining accuracy such as end face perpendicularity and roundness can be improved, and the piston can move smoothly. It can be played.

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

図面は本発明の実施例を示すもので、第1図は駆動力伝
達装置の断面図、第2図は第1図のn−■線断面図、第
3図はクラッチ手段の交換状態を示す図、第4図は差動
回転に対する伝達トルク特性を示す線図である。 21・・・ハウジング、22・・・回転軸、23・・・
圧力発生部、24・・・ピストン、25・・・クラッチ
手段、26・・・中空室、28・・・エンドカバー、4
1・・・回転部材、43・・・圧力室。
The drawings show an embodiment of the present invention, and FIG. 1 is a sectional view of the driving force transmission device, FIG. 2 is a sectional view taken along the line n-■ in FIG. 4 are diagrams showing transmission torque characteristics with respect to differential rotation. 21... Housing, 22... Rotating shaft, 23...
Pressure generating section, 24... Piston, 25... Clutch means, 26... Hollow chamber, 28... End cover, 4
1... Rotating member, 43... Pressure chamber.

Claims (1)

【特許請求の範囲】[Claims] (1)相対回転可能な2軸の間に配置され両軸の間で駆
動力を伝達する駆動力伝達装置において、前記2軸の一
方にハウジングを連結し、他方にこのハウジングに回転
可能に軸承された回転軸を連結し、前記ハウジングに有
底円筒状の中空穴を形成し、この中空穴の底面に所定の
隙間を存してピストンを収納し、前記隙間に高粘度流動
体を封入し、また前記隙間に前記2軸の差動回転により
高粘度流動体を移動させてその粘性摩擦により2軸の差
動回転に応じた圧力を発生させる回転部材を収納し、前
記ハウジングの中空穴の開口端にエンドカバーを着脱可
能に取付け、このエンドカバーと前記ピストンとの間に
ピストンに作用された圧力により係合してトルクを伝達
するクラッチ手段を介装してなる駆動力伝達装置。
(1) In a driving force transmission device that is arranged between two relatively rotatable shafts and transmits driving force between the two shafts, a housing is connected to one of the two shafts, and the other shaft is rotatably supported on the housing. A cylindrical hollow hole with a bottom is formed in the housing, a piston is housed with a predetermined gap at the bottom of the hollow hole, and a high viscosity fluid is sealed in the gap. Further, a rotating member for moving a high viscosity fluid by the differential rotation of the two axes and generating pressure according to the differential rotation of the two axes by the viscous friction is housed in the gap, and a rotating member is housed in the hollow hole of the housing. A driving force transmission device comprising an end cover removably attached to an open end, and a clutch means interposed between the end cover and the piston to transmit torque by being engaged by pressure applied to the piston.
JP13115488A 1988-05-27 1988-05-27 Drive force transmitter Pending JPH01299325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13115488A JPH01299325A (en) 1988-05-27 1988-05-27 Drive force transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13115488A JPH01299325A (en) 1988-05-27 1988-05-27 Drive force transmitter

Publications (1)

Publication Number Publication Date
JPH01299325A true JPH01299325A (en) 1989-12-04

Family

ID=15051264

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13115488A Pending JPH01299325A (en) 1988-05-27 1988-05-27 Drive force transmitter

Country Status (1)

Country Link
JP (1) JPH01299325A (en)

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