JPH0238725A - Driving force transmission gear - Google Patents

Driving force transmission gear

Info

Publication number
JPH0238725A
JPH0238725A JP18552488A JP18552488A JPH0238725A JP H0238725 A JPH0238725 A JP H0238725A JP 18552488 A JP18552488 A JP 18552488A JP 18552488 A JP18552488 A JP 18552488A JP H0238725 A JPH0238725 A JP H0238725A
Authority
JP
Japan
Prior art keywords
housing
clutch
space
piston
rotor
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
JP18552488A
Other languages
Japanese (ja)
Inventor
Tetsuya Nakano
中野 徹也
Naoyuki Sakai
直行 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 JP18552488A priority Critical patent/JPH0238725A/en
Publication of JPH0238725A publication Critical patent/JPH0238725A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE:To restrain transferred torque from being lowered, thereby improving the responsiveness in the upstand of transferred torque by providing an atmospheric chamber on the other side of an operating piston located on the opposite side of a space section while being partitioned from lubricant for clutching and also being communicated with atmosphere. CONSTITUTION:A space section 44 which is sealed with highly viscous fluid 43 is provided for the side of an operating piston 36. And an atmospheric chamber 50 which is partitioned from lubricant 27 for clutching and under atmospheric pressure at all times, is provided for the other side of the operating piston 36 located on the opposite side of the space section 44. When a housing 32 and a rotating shaft 33 are rotated differentially, highly viscous fluid 43 is forcively moved by a blade 42 so as to let internal pressure be built up because of viscous friction between both of the end surfaces of the housing 32 and the operating piston 36. This constitution can restrain transferred torque from being lowered, thereby making it possible to improve the responsiveness in the upstand of transferred torque.

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
装置に関するものである。
[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 related to.

〈従来の技術〉 4#I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(出方軸)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 4#I drive vehicle, the front wheel drive shaft (
A multi-disc clutch that transmits torque between both shafts is placed in a sealed chamber formed between the input shaft (input shaft) and the rear wheel drive shaft (output shaft), and the difference between the front wheel drive shaft and the rear wheel drive shaft is A driving force transmission device equipped with an operating piston 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 dynamic rotation 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一側
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 a cylinder chamber on one side of the actuating 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 actuating piston.

また、前記油圧発生手段として、前記作動ピストンを収
納するシリンダハウジングとの間で制限された軸方向隙
間を作動ピストンの側方に設け、この軸方向隙間にその
隙間と略同程度の肉厚の薄肉ロータを収納し、このロー
タを前記前輪駆動軸と後輪駆動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を連結し、前記ロ
ータの円周上に複数のブレードを設け、これらブレード
によって前記空間部を円周上複数に区画し、これら各空
間部に高粘度油を封入した構成のものを本願出願人にお
いて特願昭6275240号によって提供している。
Further, as the hydraulic pressure generating means, a limited axial clearance is provided on the side of the working piston between the cylinder housing that houses the working piston, and a wall thickness approximately the same as that of the clearance is provided in the axial clearance. A thin-walled rotor is housed, the rotor is connected to either the front wheel drive shaft or the rear wheel drive shaft, the cylinder housing is connected to the other, and a plurality of blades are provided on the circumference of the rotor, and these rotors are connected to one of the front wheel drive shaft and the rear wheel drive shaft. The applicant of the present invention has proposed a structure in which the space is divided into a plurality of spaces on the circumference by a blade and high viscosity oil is sealed in each of these spaces in Japanese Patent Application No. 6275240.

〈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
なトルク伝達装置においては、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, in a torque transmission device such as the one disclosed in JP-A No. 60-252026, it is necessary to incorporate an oil pump between the two shafts, and the oil pump discharges There are problems in that the configuration is complicated, such as the need to form a passage leading to the hydraulic clutch, and the size and cost are high.

このような問題点を上記特開昭62−75240号は解
決している。
The above-mentioned Japanese Patent Laid-Open No. 62-75240 solves these problems.

ところで、上記何れの構成の油圧発生手段を備えた駆動
力伝達装置においても、多板クラッチが配置されている
密閉室内にはクラッチ潤滑油が封入されている。
Incidentally, in any of the above-mentioned driving force transmission devices equipped with hydraulic pressure generating means, clutch lubricating oil is sealed in the sealed chamber in which the multi-disc clutch is disposed.

このクラ・ツチ潤滑油は、多板クラッチを連続差動させ
るとクラッチの摩擦熱により温度が上昇する。この温度
上昇によりクラッチ潤滑油が体積膨張し、この体積膨張
によって作動ピストンを押し返し、その結果、作動ピス
トンによる多板クラッチの押圧力が減殺され、伝達トル
クが低下する問題がある。
When the multi-disc clutch is continuously operated differentially, the temperature of this Kura-Tsuchi lubricating oil increases due to the frictional heat of the clutch. This temperature rise causes the clutch lubricating oil to expand in volume, and this volumetric expansion pushes back the actuating piston.As a result, the pressing force of the multi-disc clutch by the actuating piston is reduced and there is a problem in that the transmitted torque decreases.

く課組を解決するための手段〉 本発明は、上記の問題点に鑑みなされたもので、その特
徴とする構成は、ハウジング内に相対回転可能な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、前記クラ・yチの潤滑油が封入された駆動
力伝達装置において、前記作動ピストンを収納するハウ
ジングと作動ピストンの一側方との間に空間部を設け、
この空間部にロータを収納し、このロータを前記2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
グを連結し、前記ロータの円周上にブレードを設け、ま
た、前記空間部に高粘度流動体を封入し、前記空間部と
は反対側の作動ピストンの他側方に前記クラッチの潤滑
油と区画し、かつ大気と連通した大気室を設けて成るも
のである。
Means for Solving Problems> The present invention has been made in view of the above-mentioned problems, and its characteristic configuration is that the present invention is arranged between two relatively rotatable shafts in a housing, A driving force transmission device comprising a clutch means for transmitting torque at the clutch means and an actuating piston for controlling the transmitted torque of the clutch means, and a housing for housing the actuating piston and an actuating piston for controlling the transmission torque of the clutch means. A space is provided between one side of the piston,
A rotor is housed in this space, the rotor is connected to one of the two shafts, the cylinder housing is connected to the other, blades are provided on the circumference of the rotor, and blades are provided on the circumference of the rotor. An atmospheric chamber is provided on the other side of the actuating piston opposite to the space, which encloses a high-viscosity fluid and is separated from the lubricating oil of the clutch and communicates with the atmosphere.

く作 用〉 上記の構成により、クラッチの潤滑油が温度上昇して体
積膨張しても大気室によって作動ピストンへの波及を阻
止し、作動ピストンの押し返し力を極度に減少する。
Effect> With the above configuration, even if the lubricating oil of the clutch increases in temperature and expands in volume, the atmospheric chamber prevents this from spreading to the actuating piston, and the pushing back force of the actuating piston is extremely reduced.

〈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はハウジ
ングであり入力軸15の一端が結合される。31はハウ
ジングキャップを示し、これによりハウジング32内は
密閉される。このハウジング32とハウジングキャップ
31に回転軸33がハウジング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16の一端
がスプライン53で結合される。
<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 housing to which one end of the input shaft 15 is coupled. Reference numeral 31 denotes a housing cap, which seals the inside of the housing 32. A rotary shaft 33 is rotatably supported on the housing 32 and the housing cap 31 concentrically with the housing 32. One end of the output shaft 16 is connected to the rotating shaft 33 through a spline 53 .

前記ハウジング32内においては、クラ・ツチ潤滑油2
7が封入されており、またハウジング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。
Inside the housing 32, Kura Tsuchi lubricating oil 2
7 is enclosed, and a plurality of outer plates 37 are arranged in parallel on the inner periphery of the housing 32 and are engaged in the rotational direction by splines and are movable in the axial direction.

一方、回転軸33の外周にはハブ39がスプライン係合
され、このハブ39に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。前記ハウジング3
2内には、多板クラッチ40とハウジング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4oに伝えられる
On the other hand, a hub 39 is engaged with the outer periphery of the rotating shaft 33 by splines, and a plurality of inner plates 38 are engaged with the hub 39 in the rotational direction by splines, and are arranged side by side so as to be movable in the axial direction. , the outer plates 37 and the inner plates 38 are arranged alternately and constitute a multi-plate clutch 40 as a clutch means.
2, an operating piston 36 is slidably fitted between the multi-disc clutch 40 and the housing 32, and the operating force of the operating piston 36 is transmitted to the multi-disc clutch 4o.

前記作動ピストン36の一側方には、ハウジング32と
の間に軸方向隙間からなる空間部44が設けられ、この
軸方向隙間からなる空間部44に空間部44と路間−の
肉厚をもつロータ41が摺動可能に収納されている。こ
のロータ41には第2図で示すように直径方向にブレー
ド42が形成されている。
A space 44 consisting of an axial gap is provided between the actuating piston 36 and the housing 32 on one side, and a wall thickness between the space 44 and the passageway is set in the space 44 consisting of the axial gap. A rotor 41 is slidably housed therein. As shown in FIG. 2, blades 42 are formed in the rotor 41 in the diametrical direction.

このロータ41は、中心部を回転軸33の外周にスプラ
イン係合され、ハウジング32と相対回転可能としてい
る。これらによって軸方向隙間からなる空間部44は前
記複数のブレード42によって円周方向に区画され、こ
れらの空間部44にシリコンオイル等の高粘度流動体4
3が封入されている。
The rotor 41 has a center portion engaged with the outer periphery of the rotating shaft 33 by a spline, so that the rotor 41 can rotate relative to the housing 32. A space 44 consisting of an axial gap is partitioned in the circumferential direction by the plurality of blades 42, and a high viscosity fluid 4 such as silicone oil is filled in these spaces 44.
3 is included.

さらに、前記空間部44とは反対側の作動ピストン36
の他側方には前記クラッチ潤滑油27と区画された常時
大気圧の大気室50が設けられている。この大気室50
をクラッチ潤滑油27と区画する手段は、前記ハブ39
と作動ピストン36との摺接部にシールリング51を設
けて密閉する。また、大気室50を常時大気圧とする手
段は、前記回転軸33に連通路52を設ける。この連通
路52は一端が前記大気室50に開口し、他端は出力軸
16と回転軸33とを係合するスプライン53に開口し
ている。このスプライン53は回転軸33と出力軸16
との間隙54と連通していて、間隙54は大気に通じて
いる。
Furthermore, the working piston 36 on the opposite side to the space 44
On the other side, an atmospheric chamber 50 which is separated from the clutch lubricating oil 27 and which is always at atmospheric pressure is provided. This atmospheric chamber 50
The means for separating the clutch lubricating oil 27 from the hub 39
A seal ring 51 is provided at the sliding contact portion between the actuating piston 36 and the actuating piston 36 for sealing. Further, as a means for keeping the atmospheric pressure in the atmospheric chamber 50 at all times, a communication passage 52 is provided in the rotating shaft 33. One end of the communication passage 52 opens into the atmospheric chamber 50, and the other end opens into a spline 53 that engages the output shaft 16 and the rotating shaft 33. This spline 53 connects the rotating shaft 33 and the output shaft 16.
The gap 54 communicates with the atmosphere.

上記した構成により、ハウジング32と回転軸33とが
差動回転すると、空間部44に封入された高粘度流動体
43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、ハウジング32及び
作動ピストン36の両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図においてハウジング3
2に対し、ロータ41が時計回りに回転した場合、ブレ
ード42のA1、A2面が高圧、B1.82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3
6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 housing 32 and the rotating shaft 33 differentially rotate, the high viscosity fluid 43 sealed in the space 44 is forced by the blade 42 between the two closely spaced surfaces at a flow rate corresponding to the rotational speed difference. When the piston is moved, internal pressure is generated due to viscous friction between the housing 32 and both end surfaces of the actuating piston 36. That is, for example, in FIG.
2, when the rotor 41 rotates clockwise, internal pressure is generated with high pressure distribution on the A1 and A2 surfaces of the blade 42 and low pressure distribution on the B1.82 surface. This internal pressure causes the actuating piston 3
6 is pressed in a direction that presses against the multi-disc clutch 40 and performs a torque transmission action.

また、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44には高粘度流動体43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 housing 32 and the rotating shaft 33 are not differentially rotated, no internal pressure is generated by the high viscosity fluid 43 in the space 44 consisting of the axial gap in which the blade 42 is housed, and the multi-plate Clutch 40 does not perform any torque transmission action.

一方、ハブ39により大気室50と区画され、クラッチ
潤滑油27が封入されているチャンバ内では、多板クラ
ッチ40の摩擦熱によりクラッチ潤滑油27の温度が上
昇し体V1膨脹するが、この体積膨張はクラッチ潤滑油
27が封入されているチャンバ内に止められ、作動ピス
トン36の前進方向の前面は大気室50により常に大気
圧の状態となっている。従って、クラッチ潤滑油27の
体積DBにより作動ピストン36を押し返す力は殆どゼ
ロとなり、その結果伝達トルクの低下は極度に小さくな
る。
On the other hand, in the chamber that is separated from the atmospheric chamber 50 by the hub 39 and contains the clutch lubricating oil 27, the temperature of the clutch lubricating oil 27 rises due to the frictional heat of the multi-disc clutch 40, and the body V1 expands. The expansion is stopped in a chamber containing clutch lubricating oil 27, and the front surface of the actuating piston 36 in the forward direction is always at atmospheric pressure due to the atmospheric chamber 50. Therefore, the force pushing back the actuating piston 36 due to the volume DB of the clutch lubricating oil 27 becomes almost zero, and as a result, the decrease in the transmitted torque becomes extremely small.

〈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を備え
た駆動力伝達装置において、前記クラッチ手段を圧接す
る作動ピストンの移動方向の前面とクラッチ潤滑油とを
区画して常時大気圧の大気室を設けた構成であるから、
クラッチ潤滑油の温度上昇による体積膨張やガス圧発生
による作動ピストンの押し返しを防止し、伝達トルク低
下を減少する。また、作動ピストンの進退作動も円滑と
なり、差動回転が発生したときにはクラッチ手段は速や
かに圧接し、伝達トルクの立ち上りの応答性を向上する
利点がある。
<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. A driving force transmission device comprising an enclosed space, and a hydraulic pressure generating means for causing an operating piston to press against a clutch means by internal pressure caused by a high viscosity fluid generated in the space by rotation of a blade housed in the space. In this embodiment, the clutch lubricating oil is separated from the front surface in the moving direction of the actuating piston that presses the clutch means, and an atmospheric chamber is provided at a constant atmospheric pressure.
This prevents the operating piston from being pushed back due to the volume expansion due to the temperature rise of the clutch lubricating oil and the generation of gas pressure, reducing the drop in transmitted torque. Furthermore, the movement of the actuating piston back and forth becomes smoother, and when differential rotation occurs, the clutch means is quickly brought into pressure contact, which has the advantage of improving the responsiveness of the rise of the transmitted torque.

【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ff−II線断面図
である。 27・・・クラッチ潤滑油、31・・・キャップ、32
・・・ハウジング′、33・・・回転軸、36・・・作
動ピストン、40.・、多板クラッチ、41・・・ロー
タ、42・・・ブレード、43・・・高粘度流動体、4
4・・・空間部、50・・・大気室。 特 許 出 顧 人 豊田工機株式会社 代 理 人 平 井 部 第1図 −■
The drawings show an embodiment of the present invention, and FIG. 1 is a sectional view of a driving force transmission device, and FIG. 2 is a sectional view taken along line ff-II in FIG. 1. 27...Clutch lubricating oil, 31...Cap, 32
... Housing', 33 ... Rotating shaft, 36 ... Operating piston, 40.・Multi-disc clutch, 41...Rotor, 42...Blade, 43...High viscosity fluid, 4
4... Space section, 50... Atmospheric chamber. Patent sponsor Toyota Machinery Co., Ltd. agent Hiraibe Figure 1-■

Claims (1)

【特許請求の範囲】[Claims] ハウジング内に相対回転可能な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、前記
クラッチの潤滑油が封入された駆動力伝達装置において
、前記作動ピストンを収納するハウジングと作動ピスト
ンの一側方との間に空間部を設け、この空間部にロータ
を収納し、このロータを前記2軸の何れか一方に連結し
、かつ他方に前記ハウジングを連結し、前記ロータの円
周上にブレードを設け、また、前記空間部に高粘度流動
体を封入し、前記空間部とは反対側の作動ピストンの他
側方に前記クラッチの潤滑油と区画し、かつ大気と連通
した大気室を設けて成る駆動力伝達装置。
A clutch means disposed between two relatively rotatable shafts in a housing and transmitting torque between the two shafts, and an actuating piston controlling the transmission torque of the clutch means, and lubricating oil for the clutch is sealed. In the driving force transmission device, a space is provided between a housing that accommodates the operating piston and one side of the operating piston, a rotor is accommodated in the space, and the rotor is connected to either one of the two shafts. and the housing is connected to the other side, blades are provided on the circumference of the rotor, and a high viscosity fluid is sealed in the space, and the other side of the working piston is connected to the other side of the working piston on the opposite side from the space. A driving force transmission device comprising an atmospheric chamber separated from the lubricating oil of the clutch and communicated with the atmosphere.
JP18552488A 1988-07-27 1988-07-27 Driving force transmission gear Pending JPH0238725A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18552488A JPH0238725A (en) 1988-07-27 1988-07-27 Driving force transmission gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18552488A JPH0238725A (en) 1988-07-27 1988-07-27 Driving force transmission gear

Publications (1)

Publication Number Publication Date
JPH0238725A true JPH0238725A (en) 1990-02-08

Family

ID=16172306

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18552488A Pending JPH0238725A (en) 1988-07-27 1988-07-27 Driving force transmission gear

Country Status (1)

Country Link
JP (1) JPH0238725A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7365291B2 (en) 2003-12-30 2008-04-29 Lg Electronics Inc. High voltage input apparatus for magnetron

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7365291B2 (en) 2003-12-30 2008-04-29 Lg Electronics Inc. High voltage input apparatus for magnetron

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