JPH0272227A - Driving force transferrer - Google Patents

Driving force transferrer

Info

Publication number
JPH0272227A
JPH0272227A JP22359688A JP22359688A JPH0272227A JP H0272227 A JPH0272227 A JP H0272227A JP 22359688 A JP22359688 A JP 22359688A JP 22359688 A JP22359688 A JP 22359688A JP H0272227 A JPH0272227 A JP H0272227A
Authority
JP
Japan
Prior art keywords
blade
space
cylinder housing
internal pressure
clutch
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
JP22359688A
Other languages
Japanese (ja)
Inventor
Hiroshi Takuno
博 宅野
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 JP22359688A priority Critical patent/JPH0272227A/en
Publication of JPH0272227A publication Critical patent/JPH0272227A/en
Pending legal-status Critical Current

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  • Arrangement And Driving Of Transmission Devices (AREA)

Abstract

PURPOSE:To make a blade sliding surface secure a clearance as well as to prevent a wall surface from being damaged by installing a space part sealing a high viscous fluid body at the side of an actuating piston, also installing a blade being installed as one body with this actuating piston, in the inner part of this space, and having internal pressure in this fluid body generated by rotation of the blade and thereby pressing a clutch means under pressure. CONSTITUTION:When a cylinder housing 32 and a turning shaft 33 are differentially rotated, a blade 42 engaged with this turning shaft 33 rotates, therefore a high viscous fluid body in a space part 43 is moved at a flow velocity conformed to a speed difference, and thereby internal pressure is generated by viscous friction with the housing 32. With this internal pressure, an actuating piston 36 presses a multiple disk clutch 40 under pressure, transmitting its torque, but when there is no differential rotation, the high viscous fluid body is not moved as different from the above-mentioned so that no internal pressure is generated there, thus the clutch 40 will not transfer its torque at all. Since the blade 42 is solidly installed together with the piston 36, a clearance in space with the cylinder housing 32 is always kept constant, thus any damage to a space part wall is preventable in this way.

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軸の間に差動回転が生じた
時に2軸の間で回転動力を伝えるようにした駆動力伝達
装置に間するものである。
[Detailed Description of the Invention] <Industrial Application Field> The present invention provides a driving force transmission device that transmits rotational power between two relatively rotatable shafts when differential rotation occurs between the two shafts. It is something that takes place in between.

〈従来の技術〉 4輪駆動車のトルク伝達装置において、前輪駆動軸(入
力軸)と後輪駆動軸(出力軸)との間に形成された密閉
室内に両軸の間でトルクを伝達する多板クラッチを配置
し、前輪駆動軸と後輪駆動軸との差動回転に応じた油圧
力を発生する油圧発生手段の油圧力により前記多板クラ
ッチの伝達トルクを制御する作動ピストンを備えた駆動
力伝達装置は例えば特開昭60−252026号公報で
公知である。
<Prior art> In a torque transmission device for a four-wheel drive vehicle, torque is transmitted between a front wheel drive shaft (input shaft) and a rear wheel drive shaft (output shaft) within a sealed chamber formed between the two shafts. A multi-disc clutch is arranged, and an operating piston is provided that controls the transmission torque of the multi-disc clutch by the hydraulic pressure of a hydraulic pressure generating means that generates a hydraulic pressure corresponding to differential rotation between a front wheel drive shaft and a rear wheel drive shaft. A driving force transmission device is known, for example, from Japanese Patent Laid-Open No. 60-252026.

このものの前記油圧発生手段は、前輪駆動軸と後輪駆動
軸との間に、両軸の差動回転に応じて油圧を吐出するプ
ランジャ形あるいはベーン形のオイルポンプを組み込み
、このオイルポンプより吐出された圧油を両軸の一方に
形成された圧力導入路を介して前記作動ピストンの−側
方のシリンダ室に導入し、多板クラッチを作動ピストン
により接合方向に押圧する構成である。
The hydraulic pressure generating means of this device incorporates a plunger-type or vane-type oil pump that discharges hydraulic pressure in accordance with the differential rotation of both shafts between the front wheel drive shaft and the rear wheel drive shaft, and the hydraulic pressure is discharged from this oil pump. The pressurized oil is introduced into the cylinder chamber on the negative side of the working piston through a pressure introduction path formed on one of both shafts, and the multi-disc clutch is pressed in the engaging direction by the working piston.

また、前記油圧発生手段として、第4図並びに第5図で
示すように、多板クラッチ1を押圧する作動ピストン2
を収容したシリンダハウジング3との間で制限された軸
方向隙間4を作動ピストン2の側方に設け、この隙間4
にその隙間4と略同程度の肉厚のロータ5を収納し、こ
のロータ5を入力軸と出力軸の何れか一方に連結し、か
つ他方に前記シリンダハウジング3を連結し、ロータ5
の円周上に複数のブレード6を設け、これらのブレード
6によって前記空間部4を円周上複数に区画し、これら
各空間部4にシリコンオイル等の高粘度流動体を封入し
た構成のものを本願出願人において特願昭62−752
40号によって提供している。
Further, as the hydraulic pressure generating means, as shown in FIGS. 4 and 5, an operating piston 2 that presses the multi-disc clutch 1 is used.
A limited axial clearance 4 is provided on the side of the actuating piston 2 between the cylinder housing 3 that accommodates the cylinder housing 3, and this clearance 4
A rotor 5 having a wall thickness that is approximately the same as that of the gap 4 is housed in the space, and this rotor 5 is connected to either the input shaft or the output shaft, and the cylinder housing 3 is connected to the other.
A plurality of blades 6 are provided on the circumference, the space 4 is divided into a plurality of parts on the circumference by these blades 6, and each space 4 is filled with a high viscosity fluid such as silicone oil. The applicant filed a patent application in 1986-752.
Provided by No. 40.

〈発明が解決しようとする課題〉 しかしながら、上記特開昭60−252026号のよう
なトルク伝達装!においては、2軸との間にオイルポン
プを組み込む必要があるとともに、このオイルポンプの
吐出油を油圧クラッチに導入する通路を形成する必要が
ある等、構成が複雑になるとともに、大形かつコスト高
となる問題がある。
<Problems to be Solved by the Invention> However, the torque transmission device as in the above-mentioned Japanese Patent Application Laid-Open No. 60-252026! In this case, it is necessary to incorporate an oil pump between the two shafts, and it is also necessary to form a passage for introducing the oil discharged from this oil pump into the hydraulic clutch, which makes the configuration complicated, large and costly. There is a problem with high

また、上記特願昭62−75240号は、シリンダハウ
ジング3と回転軸7が差動回転すると、全1m部4に封
入された高粘度流動体がブレード6により、接近した2
面間を回転速度差に対応した流速で強制移動され、シリ
ンダハウジング3及び作動ピストン2の両端面との粘性
摩擦により内圧、すなわち、油圧を発生する。従って、
油圧発生手段は小形となり、駆動力伝達装置全体が小形
化される利点がある。
Further, in the above-mentioned Japanese Patent Application No. 62-75240, when the cylinder housing 3 and the rotating shaft 7 differentially rotate, the high viscosity fluid enclosed in the 1 m section 4 is moved closer to the two by the blade 6.
It is forcibly moved between the surfaces at a flow rate corresponding to the rotational speed difference, and internal pressure, that is, oil pressure is generated by viscous friction with both end surfaces of the cylinder housing 3 and the working piston 2. Therefore,
This has the advantage that the hydraulic pressure generating means can be made smaller, and the entire driving force transmission device can be made smaller.

ところが、この場合、ロータ5が回転して軸方向隙間4
に内圧が発生したときに、ブレード6の両面に圧力のア
ンバランスが生じることがあり、これによりブレード6
が傾いた状態で回転し、ブレード6によって軸方向隙間
4の壁面を傷付ける問題がある。
However, in this case, the rotor 5 rotates and the axial clearance 4
When internal pressure is generated in the blade 6, a pressure imbalance may occur on both sides of the blade 6.
There is a problem that the blade 6 rotates in an inclined state and the wall surface of the axial gap 4 is damaged by the blade 6.

く課題を解決するための手段〉 本発明は、上記の問題点に鷲みなされたもので、その構
成は、相対回転可能な2軸の間に配置され両軸の間でト
ルクを伝達するクラッチ手段と、このクラッチ手段の伝
達トルクを制御する作動ピストンを備えた駆動力伝達装
置において、前記2軸の一方に前記作動ピストンを収容
するシリンダハウジングを連結し、他方にこのシリンダ
ハウジングに回転可能に軸承された回転軸を連結し、前
記シリンダハウジング内に空間部を作動ピストンの側方
に設け、この作動ピストンの前記空間部側の場面、若し
くはこの端面と対向するシリンダハウジングの端面に前
記空間部に収納される直径方向のブレードを一体に5設
し、このブレードを前記2軸の何れか一方に連結し、前
記空間部に高粘度流動体を封入して成るものである。
Means for Solving the Problems The present invention has been made in view of the above-mentioned problems, and has a structure that includes a clutch that is disposed between two relatively rotatable shafts and that transmits torque between the two shafts. and an actuating piston for controlling transmission torque of the clutch means, wherein a cylinder housing housing the actuating piston is connected to one of the two shafts, and the cylinder housing is rotatably connected to the other of the two shafts. A rotary shaft supported by the shaft is connected, a space is provided in the cylinder housing on the side of the working piston, and the space is provided on the side of the space of the working piston or on the end face of the cylinder housing opposite to this end face. Five diametrical blades housed in the shaft are connected to one of the two shafts, and a high viscosity fluid is sealed in the space.

く作 用〉 上記の構成により、ブレードは、その片面が作動ピスト
ン若しくはシリンダハウジングと一体であるため、他の
片面の相対摺動面は常に一定のクリアランスを保持して
回転する。
With the above configuration, since one side of the blade is integral with the operating piston or cylinder housing, the relative sliding surface on the other side always rotates while maintaining a constant clearance.

〈実施例〉 以下本発明の実施例を図面に基づいて説明する。第1図
において、30は駆動力伝達装置である。32はシリン
ダハウジングであり入力軸の一端が結合される。31は
ハウジングキャップを示し、これによりシリンダハウジ
ング32内は密閉される。このシリンダハウジング32
とハウジングキャップ31に回転軸33がシリンダハウ
ジング32と同心で回転自在に軸承されている。前記回
転軸33には出力軸の一端が結合される。
<Example> Hereinafter, an example of the present invention will be described based on the drawings. In FIG. 1, 30 is a driving force transmission device. 32 is a cylinder housing to which one end of the input shaft is connected. Reference numeral 31 denotes a housing cap, which seals the inside of the cylinder housing 32. This cylinder housing 32
A rotary shaft 33 is rotatably supported on the housing cap 31 and concentrically with the cylinder housing 32. One end of an output shaft is coupled to the rotating shaft 33 .

前記シリンダハウジング32内においては、クラッチ潤
滑油が封入されており、またシリンダハウジング32の
内周には複数のアウタプレート37がスプラインにより
回転方向を係合し、かつ軸線方向に移動可能に並設され
ている。
Clutch lubricating oil is sealed in the cylinder housing 32, and a plurality of outer plates 37 are arranged in parallel on the inner periphery of the cylinder housing 32 to be engaged in the rotational direction by splines and movable in the axial direction. has been done.

一方、回転軸33の外周には複数のインナプレート38
がスプラインにより回転方向を係合し、軸線方向に移動
可能に並設されている。これら、アウタプレート37と
インナプレート38は交互に配置され、クラッチ手段と
しての多板クラッチ40を構成している。前記シリンダ
ハウジング32内には、多板クラッチ40とシリンダハ
ウジング32との間に作動ピストン36が摺動可能に嵌
装され、この作動ピストン36の作動力が前記多板クラ
ッチ40に伝えられる。
On the other hand, a plurality of inner plates 38 are provided on the outer periphery of the rotating shaft 33.
are engaged in the rotational direction by a spline and are arranged in parallel so that they can move in the axial direction. These outer plates 37 and inner plates 38 are arranged alternately to constitute a multi-plate clutch 40 as clutch means. An operating piston 36 is slidably fitted in the cylinder housing 32 between a multi-disc clutch 40 and the cylinder housing 32, and the operating force of the operating piston 36 is transmitted to the multi-disc clutch 40.

前記作動ピストン36の側方には、シリンダハウジング
32との間に軸方向隙間からなる空間部43が設けられ
、この空間部43に空間部43と路間−の肉厚をもつブ
レード42が摺動可能に収納されている。
A space 43 consisting of an axial clearance is provided between the actuating piston 36 and the cylinder housing 32 on the side thereof, and a blade 42 having a wall thickness equal to that between the space 43 and the passageway slides into this space 43. It is movably stored.

このブレード42は第2図及び第3図でも示すように、
作動ピストン36の空間部43側の端面に直径方向に一
体に凸設し、その中心部には係合突起41が形成され、
この係合突起41が回転軸33の外周に設けた凹溝に係
合し、シリンダハウジング32と相対回転可能としてい
る。尚、ブレド42は、その外周をシリンダハウジング
32の内周に係合し、回転軸33と相対回転可能として
もよい。
As shown in FIGS. 2 and 3, this blade 42 is
The actuating piston 36 is integrally protruded in the diametrical direction on the end face on the side of the space 43, and an engaging protrusion 41 is formed in the center thereof.
This engaging protrusion 41 engages with a groove provided on the outer periphery of the rotating shaft 33, allowing relative rotation with the cylinder housing 32. Note that the blade 42 may have its outer circumference engaged with the inner circumference of the cylinder housing 32 so that it can rotate relative to the rotating shaft 33.

また、図示省略しているが、ブレード42をシリンダハ
ウジング32側に一体に凸設してもよい。
Although not shown, the blade 42 may be integrally provided on the cylinder housing 32 side.

上記何れにしても、空間部43は前記複数のブレード4
2によって周方向に区画され、これらの空間部43にシ
リコンオイル等の高粘度流動体が封入されている。
In either case, the space 43 is formed by the plurality of blades 4.
2 in the circumferential direction, and a high viscosity fluid such as silicone oil is sealed in these spaces 43.

上記した構成により、シリンダハウジング32と回転軸
33とが差動回転すると、空間部43に封入された高粘
度流動体がブレード42により、接近した2面間を回転
速度差に対応した流速で強制移動され、シリンダハウジ
ング32の端面との粘性牽擦により内圧が発生する。す
なわち、例えば第2図においてシリンダハウジング32
に対し、ブレード42が時計回りに回転した場合、ブレ
ード42のA、A面が高圧、B、8面が低圧力分布の内
圧が発生する。この内圧により作動ピストン36は多板
クラッチ40を圧接する方向に押圧され、トルク伝達作
用を行うのである。
With the above configuration, when the cylinder housing 32 and the rotating shaft 33 differentially rotate, the high viscosity fluid sealed in the space 43 is forced by the blade 42 between the two closely spaced surfaces at a flow rate corresponding to the rotational speed difference. When the cylinder housing 32 is moved, internal pressure is generated due to viscous friction with the end face of the cylinder housing 32. That is, for example, in FIG.
On the other hand, when the blade 42 rotates clockwise, internal pressure is generated with high pressure distribution on the A and A sides of the blade 42 and low pressure distribution on the B and 8 sides. This internal pressure presses the actuating piston 36 in a direction that presses against the multi-disc clutch 40, thereby performing a torque transmitting action.

また、シリンダハウジング32と回転軸33とが差動回
転していない場合は、ブレード42が収納されている軸
方向隙間からなる空間部には高粘度流動体による内圧は
発生されず、多板クラッチ40はトルク伝達作用は行わ
ない。
Further, when the cylinder housing 32 and the rotating shaft 33 are not differentially rotating, no internal pressure is generated due to the high viscosity fluid in the space formed by the axial gap in which the blade 42 is housed, and the multi-disc clutch 40 does not perform a torque transmission function.

ところで、ブレード42は作動ピストン36と一体に凸
設されているため、このブレード42と相対回転するシ
リンダハウジング32とのクリアランスは常に一定に保
持する。これは、ブレード42をシリンダハウジング3
2側に一体凸設した場合でも同様である。
By the way, since the blade 42 is integrally provided with the operating piston 36, the clearance between the blade 42 and the relatively rotating cylinder housing 32 is always maintained constant. This connects the blade 42 to the cylinder housing 3
The same applies to the case where it is integrally provided on the second side.

尚、上記実施例では、クラッチ手段は多板クラッチ40
の構成としているが、必しも多板クラッチ40に限定す
るものではない。
In the above embodiment, the clutch means is a multi-disc clutch 40.
However, it is not necessarily limited to the multi-disc clutch 40.

〈発明の効果〉 以上のように本発明は、相対回転可能な2軸間のトルク
を伝達するクラッチ手段を2軸間の差動回転にて制御す
る作動ピストンの側方に高粘度流動体を封入した空間部
を設け、この空間部に収納されたブレードの回転により
前記空間部に発生する高粘度流動体による内圧にて作動
ピストンがクラッチ手段を圧接する油圧発生手段におい
て、前記ブレードを作動ピストンの空間部側端面、若し
くはこの端面と対向するシリンダハウジングに一体に凸
設した構成であるから、従来のようにブレードの両面に
圧力のアンバランスが生じて傾いた状態で回転すること
がなく、ブレードの相対摺動面は常に一定のクリアラン
スが確保され、空間部の壁面の傷付きを防止する。
<Effects of the Invention> As described above, the present invention provides a high viscosity fluid on the side of the actuating piston that controls the clutch means that transmits torque between two relatively rotatable shafts by differential rotation between the two shafts. The hydraulic pressure generating means is provided with an enclosed space, and the actuation piston presses against the clutch means by the internal pressure caused by the high viscosity fluid generated in the space by the rotation of the blade housed in the space. Since the blade is integrally protruded on the end face of the space side or on the cylinder housing facing this end face, there is no pressure imbalance on both sides of the blade and the blade does not rotate in an inclined state as in the past. A constant clearance is always maintained between the relative sliding surfaces of the blades to prevent damage to the walls of the space.

【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■−■線断面図、第
3図は本発明の要部斜視図、第4図は従来の駆動力伝達
装置の断面図、第5図は第4図v−V線断面図である。 31・・・ハウジングキャップ、32・・・シリンダハ
ウジング、33・・・回転軸、36・・・作動ピストン
、40・・・多板クラッチ、42・・・ブレード、43
、・・・空間部。 特許出願人  豊田工機株式会社 第1図 第2図 第4図 第5図
The drawings show embodiments of the present invention; FIG. 1 is a cross-sectional view of a driving force transmission device, FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a perspective view of essential parts of the present invention. , FIG. 4 is a cross-sectional view of a conventional driving force transmission device, and FIG. 5 is a cross-sectional view taken along the line v--V in FIG. 31... Housing cap, 32... Cylinder housing, 33... Rotating shaft, 36... Operating piston, 40... Multi-disc clutch, 42... Blade, 43
,...Space part. Patent applicant: Toyoda Koki Co., Ltd. Figure 1 Figure 2 Figure 4 Figure 5

Claims (1)

【特許請求の範囲】[Claims]  相対回転可能な2軸の間に配置され両軸の間でトルク
を伝達するクラッチ手段と、このクラッチ手段の伝達ト
ルクを制御する作動ピストンを備えた駆動力伝達装置に
おいて、前記2軸の一方に前記作動ピストンを収容する
シリンダハウジングを連結し、他方にこのシリンダハウ
ジングに回転可能に軸承された回転軸を連結し、前記シ
リンダハウジング内に空間部を作動ピストンの側方に設
け、この作動ピストンの前記空間部側の端面、若しくは
この端面と対向するシリンダハウジングの端面に前記空
間部に収納される直径方向のブレードを一体に凸設し、
このブレードを前記2軸の何れか一方に連結し、前記空
間部に高粘度流動体を封入して成る駆動力伝達装置。
A driving force transmission device comprising a clutch means disposed between two relatively rotatable shafts and transmitting torque between the two shafts, and an actuating piston controlling the transmission torque of the clutch means. A cylinder housing that accommodates the working piston is connected to the other side, and a rotating shaft rotatably supported on the cylinder housing is connected to the other side, and a space is provided in the cylinder housing on the side of the working piston, and a space is provided in the cylinder housing on the side of the working piston. A diametrical blade to be accommodated in the space is integrally provided on an end face on the space side or an end face of the cylinder housing opposite to this end face, and
A driving force transmission device in which this blade is connected to either one of the two shafts and a high viscosity fluid is sealed in the space.
JP22359688A 1988-09-08 1988-09-08 Driving force transferrer Pending JPH0272227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22359688A JPH0272227A (en) 1988-09-08 1988-09-08 Driving force transferrer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22359688A JPH0272227A (en) 1988-09-08 1988-09-08 Driving force transferrer

Publications (1)

Publication Number Publication Date
JPH0272227A true JPH0272227A (en) 1990-03-12

Family

ID=16800653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22359688A Pending JPH0272227A (en) 1988-09-08 1988-09-08 Driving force transferrer

Country Status (1)

Country Link
JP (1) JPH0272227A (en)

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