JPS62113965A - Cooling device of belted continuously variable transmission - Google Patents
Cooling device of belted continuously variable transmissionInfo
- Publication number
- JPS62113965A JPS62113965A JP25180685A JP25180685A JPS62113965A JP S62113965 A JPS62113965 A JP S62113965A JP 25180685 A JP25180685 A JP 25180685A JP 25180685 A JP25180685 A JP 25180685A JP S62113965 A JPS62113965 A JP S62113965A
- Authority
- JP
- Japan
- Prior art keywords
- belt
- sheave
- pulleys
- continuously variable
- variable transmission
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0487—Friction gearings
- F16H57/0489—Friction gearings with endless flexible members, e.g. belt CVTs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、自動車のエンジンから車輪側に動力を伝達
するために使用するベルト式無段変速機の冷却装置に関
する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a cooling device for a belt-type continuously variable transmission used to transmit power from an automobile engine to wheels.
（従来の技術）
従来この種ベルト式無段変速機は、例えば特開昭５８−
４２８６２号公報に開示されているごとく、エンジンに
連動連結された駆動軸上に、固定シーブと可動シーブと
から成る駆動プーリを設けると共に、前記駆動軸と平行
に軸架される従動軸上に、固定シーブと可動シーブとか
ら成る従動プーリを設ける一方、これら両プーリ間にゴ
ム又は合成樹脂などから成る無端ベルトを掛回して、前
記駆動プーリの可動シーブを固定シーブに対し移動操作
することにより、前記ベルトを介して前記従動プーリ側
に伝達される回転動力を無段階にわたって変速するごと
くしている。(Prior art) Conventionally, this type of belt type continuously variable transmission is disclosed in, for example, Japanese Patent Application Laid-open No. 1983-
As disclosed in Japanese Patent No. 42862, a drive pulley consisting of a fixed sheave and a movable sheave is provided on a drive shaft interlockingly connected to the engine, and a driven shaft is mounted parallel to the drive shaft, A driven pulley consisting of a fixed sheave and a movable sheave is provided, and an endless belt made of rubber or synthetic resin is wound between these two pulleys, and the movable sheave of the drive pulley is moved relative to the fixed sheave. The speed of the rotational power transmitted to the driven pulley via the belt is changed steplessly.
（発明が解決しようとする問題点）
ところで前記のごとき無段変速機にあっては、前記ベル
トによる動力伝達時に、該ベルトと前記両プーリとの接
触部位で摩擦熱が発生するが、前記ベルトを例えば熱に
弱い合成樹脂やゴムから形成した場合、前記摩擦熱が前
記ベルトに悪影響を与え、該ベルトの早期劣化を招く不
具合がある。(Problems to be Solved by the Invention) In the continuously variable transmission as described above, when power is transmitted by the belt, frictional heat is generated at the contact area between the belt and the pulleys. For example, if the belt is made of synthetic resin or rubber that is sensitive to heat, the frictional heat may have an adverse effect on the belt, causing early deterioration of the belt.
本発明は以上のごとき実情に鑑みて成したもので、その
目的は、前記駆動及び従動プーリの回転を利用して、該
各プーリの少なくとも一方側に撹拌空気流を発生させる
ことにより、簡単な構成でもって、前記ベルトを確実に
冷却することができるベルト式無段変速機の冷却装置を
提供することにある。The present invention has been made in view of the above-mentioned circumstances, and its purpose is to generate an agitated air flow on at least one side of each pulley by utilizing the rotation of the driving and driven pulleys. It is an object of the present invention to provide a cooling device for a belt-type continuously variable transmission that can reliably cool the belt.
（問題点を解決するための手段）
本発明の冷却装置は、第１図乃至第４図に示すごとく構
成したもので、ハウジング（１）内にエンジン（Ｅ）に
連動連結された駆動軸（２）を軸架し、該駆動軸（２）
上に固定シーブ（３１）と可動シーブ（３２）とから成
る駆動プーリ（３）を設けると共に、前記ハウジング（
１）内に車輪側に連動する従動軸（４）を軸架して、該
従動軸（４）上に固定シーブ（５１）と可動シーブ（５
２）とから成る従動プーリ（５）を設ける一方、これら
両プーリ（３）（５）間にベルト（６）を無端状に掛回
して成るベルト式無段変速機において、前記駆動プーリ
（３）と従動プーリ（５）との内、少なくとも一方の前
記ベルト（６）との接触面側に、前記両ブーＵ（３）（
５）の回転時、該両プーリ（３）（５）における各シー
ブ（３１）（３２）（５１）（５２）間の空気を撹拌す
ルティンプルなどの撹拌手段（７）を設けたのである。(Means for solving the problems) The cooling device of the present invention is constructed as shown in FIGS. 1 to 4, and has a drive shaft ( 2) is mounted on a shaft, and the drive shaft (2)
A driving pulley (3) consisting of a fixed sheave (31) and a movable sheave (32) is provided on the housing (
1) A driven shaft (4) that interlocks with the wheel side is mounted inside, and a fixed sheave (51) and a movable sheave (5) are mounted on the driven shaft (4).
In a belt-type continuously variable transmission, a driven pulley (5) consisting of a driven pulley (2) is provided, and a belt (6) is endlessly wound between these pulleys (3) and (5). ) and the driven pulley (5), on the contact surface side with at least one of the belts (6), both the boos U (3) (
A stirring means (7) such as a rutin pull is provided to stir the air between the sheaves (31), (32), (51), and (52) in both pulleys (3) and (5) during rotation of step 5).
（作用）
しかして前記駆動プーリ（３）と従動プーリ（５）の回
転時に、これら両プーリ（３）（５）の内部なくとも一
方側において、前記撹拌手段（７）により撹拌空気流が
形成され、この撹拌空気流で前記ベルト（６）が直接冷
却されて、該ベルト（６）の熱による悪影響が排除され
るのである。(Function) When the driving pulley (3) and the driven pulley (5) rotate, a stirred air flow is formed by the stirring means (7) inside at least one side of both pulleys (3) and (5). The belt (6) is directly cooled by this agitated air flow, and the adverse effects of heat on the belt (6) are eliminated.
（実施例）
以下本発明にかかるベルト式無段変速機の冷却装置を図
面の実施例によって説明する。(Example) Hereinafter, a cooling device for a belt type continuously variable transmission according to the present invention will be explained by referring to an example shown in the drawings.
第１図はエンジン（Ｅ）の車幅方向側部に一体状に並設
したベルト式無段変速機（Ｍ）を示しており、ハウジン
グ（１）内に前記エンジン（Ｅ）に連動連結する駆動軸
（２）を軸架し、該駆動軸（２）上に駆動プーリ（３）
を設けると共に、前記ハウジング（１）内に車輪側に連
動する従動軸（４）を前記駆動軸（２）と平行に軸架し
、この従動軸（４）上に従動プーリ（５）を設ける一方
、これら両プーリ（３）（５）間にベルト（６）を無端
状に掛回している。Figure 1 shows a belt-type continuously variable transmission (M) that is integrally installed in parallel with the engine (E) in the vehicle width direction, and is interlocked and connected to the engine (E) within the housing (1). A drive shaft (2) is mounted on a shaft, and a drive pulley (3) is mounted on the drive shaft (2).
At the same time, a driven shaft (4) that interlocks with the wheel side is mounted in the housing (1) parallel to the drive shaft (2), and a driven pulley (5) is provided on the driven shaft (4). On the other hand, a belt (6) is wound endlessly between these pulleys (3) and (5).
前記駆動プーリ（３）は、前記駆動軸（２）の軸方向−
側で前記エンジン（Ｅ）（１１に固定した固定シーブ（
３１）と、前記駆動軸（２）の軸方向外端部側に移動可
能に設けた可動シーブ（３２）とから成り、また前記従
動プーリ（５）は、前記従動軸（４）の軸方向外端部側
で前記駆動プーリ（３）の可動シーブ（３２）との対向
位置に固定した固定シーブ（５１）と、前記従動軸（４
）の前記エフ’）ン（Ｅ）側で前記駆動プーリ（３）の
固定シーブ（３１）との対向位置に移動可能に設けた可
動シーブ（５２）とから構成される。The drive pulley (3) is arranged in the axial direction of the drive shaft (2).
The fixed sheave fixed to the engine (E) (11) on the side
31) and a movable sheave (32) movably provided on the axially outer end side of the drive shaft (2), and the driven pulley (5) is movable on the axially outer end side of the driven shaft (4). A fixed sheave (51) fixed at a position facing the movable sheave (32) of the driving pulley (3) on the outer end side, and the driven shaft (4)
) and a movable sheave (52) movably provided on the F') side (E) of the drive pulley (3) to a position opposite to the fixed sheave (31).
しかして前記のごとき無段変速機（Ｍ）において、前記
駆動プーリ（３）と従動プーリ（５）との間に掛回され
るベルト（６）を、次のようにして冷却するのである。In the continuously variable transmission (M) as described above, the belt (6) wound between the driving pulley (3) and the driven pulley (5) is cooled in the following manner.
即ち、前記各プーリ（３）（５）の固定シーブ（３１）
（５１）で前記ベルト（６）との接触面側に、第２図で
明らかなごとく、空気の撹拌手段（７）として多数のデ
ィンプル（７）を形成するのであり、斯くして前記各シ
ーブ（３１）（５１）の回転に伴い、前記ディンプル（
７）により前記固定シーブ（３１）（５１）と可動／−
ブ（３２）（５２）との間に撹拌空気流を発生させ、こ
の撹拌空気流により、前記ベルト（６）を積極的に冷却
するごとくなすのである。That is, the fixed sheave (31) of each of the pulleys (3) and (5)
At (51), a large number of dimples (7) are formed on the contact surface side with the belt (6) as an air stirring means (7), as shown in FIG. (31) With the rotation of (51), the dimple (
7) allows the fixed sheave (31) (51) and the movable/-
A stirring air flow is generated between the belts (32) and (52), and the belt (6) is actively cooled by this stirring air flow.
前記撹拌手段（７）としては、前記ディンプル以外に多
数の突起を形成し、この突起により前記固定シーブ（３
１）（５１）と可動シーブ（３２）（５２）との間に撹
拌空気流を発生させるごとくしてもよいのである。As the stirring means (7), a large number of protrusions are formed in addition to the dimples, and these protrusions cause the fixed sieve (3
1) A stirring air flow may be generated between (51) and the movable sheave (32) (52).
前記のとと（固定シーブ（３１）（５１）に多数の突起
又はディンプル（７）を形成するときには、前記各シー
ブ（３１）（６１）の表面積が増大され、つまり空気と
の接触面積が大となって、前記各シーブ（３１）（５１
）の冷却効果が高められ、前記ディンプル（７）などに
よる撹拌空気流と相俟って、前記ベルト（６）の冷却が
効率良く行われるのである。When forming a large number of protrusions or dimples (7) on the fixed sheaves (31) (51), the surface area of each sheave (31) (61) is increased, that is, the contact area with air is increased. Therefore, each sheave (31) (51
), and in combination with the stirring air flow caused by the dimples (7), the belt (6) is efficiently cooled.
前記実施例では、前記駆動プーリ（３）と従動プーリ（
５）の各固定シーブ（３１） （５１）側に前記撹拌
手段（７）を設けたが、この撹拌手段（７）は、前記各
プーリ（３）（５）の可動シーブ（３２）（５２）側に
形成してもよく、また前記各固定シーブ（３１）（５１
）と可動シーブ（３２）（５２）との両者にそれぞれ形
成してもよいのであり、更に前記撹拌手段（７）は前記
各プーリ（３）（５）の白河れか一方のみに形成しても
よいのである。In the embodiment, the driving pulley (3) and the driven pulley (
The stirring means (7) is provided on each of the fixed sheaves (31) (51) of the pulleys (3) (5). ) side, and each fixed sheave (31) (51
) and the movable sheave (32) (52), respectively.Furthermore, the stirring means (7) may be formed only on one of the Shirakawa pulleys (3) and (5). It is also good.
尚、第１図の実施例では、前記駆動プーリ（３）の可動
シーブ（３２）側にトルクカム機構（８）を設け、該ト
ルク機構（８）の操作により前記可動シーブ（３２）を
前記固定シーブ（３１）に対し移動可能として、該駆動
プーリ（３）のプーリ比を変更するごとく成しており、
さらに前記従動軸（５）の軸芯部に油圧操作機構（図示
せず）に連通ずる油通路（４ａ）を形成し、該通路（４
ａ）を、前記従動プーリ（５）における可動シーブ（５
２）の背面側に設けた油圧制御室（４ｂ）に開口させ、
前記トルクカム機構（８）に連動して前記通路（４ａ）
から前記可動シーブ（５２）に圧力油を給排することに
より、該可動シーブ（５２）を前記固定シーブ（５１）
に対し移動可能として、該従動プーリ（５）のプーリ比
を変更するごと（成している。In the embodiment shown in FIG. 1, a torque cam mechanism (8) is provided on the movable sheave (32) side of the drive pulley (3), and the movable sheave (32) is fixed in place by operating the torque mechanism (8). The drive pulley (3) is movable relative to the sheave (31) to change the pulley ratio of the drive pulley (3).
Furthermore, an oil passage (4a) communicating with a hydraulic operating mechanism (not shown) is formed in the shaft center of the driven shaft (5).
a) in the movable sheave (5) of the driven pulley (5).
2) is opened to the hydraulic control chamber (4b) provided on the back side of the
The passageway (4a) is linked to the torque cam mechanism (8).
By supplying and discharging pressure oil to and from the movable sheave (52), the movable sheave (52) is connected to the fixed sheave (51).
The driven pulley (5) is movable each time the pulley ratio of the driven pulley (5) is changed.
（発明の効果）
以上説明したごとく本発明にかかるベルト式無段変速機
の冷却装置では、前記駆動プーリ（３）と従動プーリ（
５）との内、少なくとも一方の前記ベルト（６）との接
触面側に、前記両プーリ（３）（５）の回転時に、該両
プーリ（３）（５）における各シーブ（３１）（３２）
（５１）（５２）間の空気を撹拌する撹拌手段（７）を
設けたから、前記各ブーＩＪ（３）（５）の回転時に、
これら両プーリ（３）（５）の内部なくとも一方側にお
いて、前記撹拌手段（７）により各プーリを構成するシ
ーブ間に撹拌空気流を発生させることができ、この撹拌
空気流により前記ベルト（６）を確実且つ積極的に冷却
することができて、該ベルト（６）の過熱による早期劣
化を未然に防止できるに至ったのである。(Effects of the Invention) As explained above, in the cooling device for a belt type continuously variable transmission according to the present invention, the drive pulley (3) and the driven pulley (
When the pulleys (3) and (5) rotate, each sheave (31) ( 32)
Since the stirring means (7) for stirring the air between (51) and (52) is provided, when the respective boolean IJs (3) and (5) are rotated,
Inside at least one side of both pulleys (3) and (5), the stirring means (7) can generate a stirring air flow between the sheaves constituting each pulley, and this stirring air flow causes the belt ( 6) can be reliably and actively cooled, making it possible to prevent premature deterioration of the belt (6) due to overheating.
【図面の簡単な説明】
第１図は本発明の冷却装置を設けたベルト式無段変速機
の一部切欠平面図、第２図は同要部の一部省略正面図で
ある。
（２）・・・・・駆動軸
（３）・・・・・駆動プーリ
（３１）・番・・固定シーブ
（３２）・・・・可動シーブ
（４）・・・・・従動軸
（５）・・・・・従動プーリ
（５１）・・・拳固定シーブ
（５２）・・・・可動シーブ
（６）・・−・・ベルト
第１図
第２図BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway plan view of a belt-type continuously variable transmission equipped with a cooling device of the present invention, and FIG. 2 is a partially cutaway front view of the same essential parts. (2)... Drive shaft (3)... Drive pulley (31)... Fixed sheave (32)... Movable sheave (4)... Driven shaft (5 )...Followed pulley (51)...Fisted sheave (52)...Movable sheave (6)...Belt Figure 1 Figure 2
Claims (1)
２）に対し軸方向移動可能に設けた可動シーブ（３２）
とから成る駆動プーリ（３）と、従動軸（４）に固定し
た固定シーブ（５１）と従動軸（４）に対し軸方向移動
可能に設けた可動シーブ（５２）とから成る従動プーリ
（５）と、これら両プーリ（３）（５）間に架け渡した
ベルト（６）とを備えたベルト式無段変速機における冷
却装置であって、前記駆動プーリ（３）と従動プーリ（
５）との内、少なくとも一方の前記ベルト（６）との接
触面側に、前記各プーリ（３）（５）の回転時、該各プ
ーリ（３）（５）における両シーブ（３１）（３２）（
５１）（５２）間の空気を撹拌する撹拌手段（７）を設
けたことを特徴とするベルト式無段変速機の冷却装置。The fixed sheave (31) fixed to the drive shaft (2) and the drive shaft (
2) A movable sheave (32) that is movable in the axial direction
A driven pulley (5) consisting of a fixed sheave (51) fixed to the driven shaft (4) and a movable sheave (52) movable in the axial direction with respect to the driven shaft (4). ), and a belt (6) spanning between both pulleys (3) and (5), the cooling device for a belt type continuously variable transmission, comprising:
When the pulleys (3) and (5) rotate, both sheaves (31) ( 32)(
51) A cooling device for a belt type continuously variable transmission, characterized in that it is provided with stirring means (7) for stirring the air between (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25180685A JPS62113965A (en) | 1985-11-09 | 1985-11-09 | Cooling device of belted continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25180685A JPS62113965A (en) | 1985-11-09 | 1985-11-09 | Cooling device of belted continuously variable transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62113965A true JPS62113965A (en) | 1987-05-25 |
Family
ID=17228200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25180685A Pending JPS62113965A (en) | 1985-11-09 | 1985-11-09 | Cooling device of belted continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62113965A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6221171B1 (en) | 1996-06-04 | 2001-04-24 | Ebara Corporation | Method and apparatus for conveying a workpiece |
-
1985
- 1985-11-09 JP JP25180685A patent/JPS62113965A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6221171B1 (en) | 1996-06-04 | 2001-04-24 | Ebara Corporation | Method and apparatus for conveying a workpiece |
| US6595220B2 (en) | 1996-06-04 | 2003-07-22 | Ebara Corporation | Apparatus for conveying a workpiece |
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