JPH0658390A - Lubrication system for non-stage transmission - Google Patents
Lubrication system for non-stage transmissionInfo
- Publication number
- JPH0658390A JPH0658390A JP4211390A JP21139092A JPH0658390A JP H0658390 A JPH0658390 A JP H0658390A JP 4211390 A JP4211390 A JP 4211390A JP 21139092 A JP21139092 A JP 21139092A JP H0658390 A JPH0658390 A JP H0658390A
- Authority
- JP
- Japan
- Prior art keywords
- pulley
- belt
- lubricating oil
- oil
- driven
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 17
- 238000005461 lubrication Methods 0.000 title claims abstract description 7
- 239000010687 lubricating oil Substances 0.000 claims abstract description 63
- 239000003921 oil Substances 0.000 claims abstract description 55
- 230000003247 decreasing effect Effects 0.000 claims abstract description 9
- 230000001050 lubricating effect Effects 0.000 claims description 9
- 230000007423 decrease Effects 0.000 abstract description 7
- 230000002093 peripheral effect Effects 0.000 description 11
- 239000002184 metal Substances 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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
- F16H57/048—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
-
- 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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
-
- 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
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ベルトを用いた無段変
速機の潤滑装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating device for a continuously variable transmission using a belt.
【０００２】[0002]
【従来の技術】従来の無段変速機の潤滑装置としては、
例えば特開平２−１５０５４９号公報に開示されたもの
があり、図７に示す。2. Description of the Related Art As a conventional lubricating device for a continuously variable transmission,
For example, there is one disclosed in JP-A-2-150549, which is shown in FIG.
【０００３】無段変速機１０１の駆動軸１０３は、図示
しないエンジンによって回転駆動され、従動軸１０５
は、図示しないクラッチや車軸等に連動連結されてい
る。駆動軸１０３には駆動側プーリ１０７が設けられ、
従動軸１０５には従動側プーリ１０９が設けられてい
る。駆動側プーリ１０７及び従動側プーリ１０９は、駆
動軸１０３又は従動軸１０５に固定された固定プーリ片
１１１，１１３と、駆動軸１０３又は従動軸１０５に軸
方向に移動可能に装着された可動プーリ片１１５，１１
７とを備えている。駆動側可動プーリ片１１５の背面側
及び従動側可動プーリ１１７の背面側には、駆動側油室
１１９及び従動側油室１２１が形成され、両油室１１
９，１２１には、駆動側可動プーリ片１１５及び従動側
駆動プーリ片１１７を移動させるための作動油が、図示
しないオイルポンプから供給される。The drive shaft 103 of the continuously variable transmission 101 is rotationally driven by an engine (not shown), and a driven shaft 105 is provided.
Are interlockingly connected to a clutch, an axle, etc. not shown. A drive side pulley 107 is provided on the drive shaft 103,
A driven pulley 109 is provided on the driven shaft 105. The drive side pulley 107 and the driven side pulley 109 are fixed pulley pieces 111 and 113 fixed to the drive shaft 103 or the driven shaft 105, and a movable pulley piece mounted on the drive shaft 103 or the driven shaft 105 so as to be movable in the axial direction. 115, 11
7 and 7. A drive side oil chamber 119 and a driven side oil chamber 121 are formed on the back side of the drive side movable pulley piece 115 and the back side of the driven side movable pulley 117.
Operating oil for moving the drive-side movable pulley piece 115 and the driven-side drive pulley piece 117 is supplied to 9, 121 from an oil pump (not shown).
【０００４】駆動側プーリ１０７及び従動側プーリ１０
９には金属製のベルト１２３が巻きかけられ、駆動側プ
ーリ１０７と従動側プーリ１０９の間でベルト１２３に
よって包囲される空間部１２５には、ベルト１２３に潤
滑油を供給する潤滑油用パイプ１２７が設けられてい
る。潤滑油用パイプ１２７には、潤滑油をベルト１２３
に向けて吐出するノズル１２９が開口形成されている。Drive side pulley 107 and driven side pulley 10
A belt 123 made of metal is wound around 9, and a space 125 surrounded by the belt 123 between the driving pulley 107 and the driven pulley 109 supplies a lubricating oil pipe 127 for supplying lubricating oil to the belt 123. Is provided. The lubricating oil pipe 127 is filled with the lubricating oil by the belt 123.
A nozzle 129 that discharges toward is formed in the opening.
【０００５】このような潤滑装置によれば、潤滑油用パ
イプ１２７のノズル１２９からベルト１２３に潤滑油を
直接供給できるので、ベルト１２３と両プーリ１０７，
１０９との間の摩擦係数を適正に維持し、ベルトスリッ
プの発生や金属磨耗の増加を未然に防止して、エンジン
の動力を従動軸１０５側へ良好に伝達することができ
る。According to such a lubricating device, since the lubricating oil can be directly supplied from the nozzle 129 of the lubricating oil pipe 127 to the belt 123, the belt 123, both pulleys 107,
It is possible to properly maintain the friction coefficient between the engine 109 and 109, prevent the occurrence of belt slip and the increase of metal wear, and satisfactorily transmit the power of the engine to the driven shaft 105 side.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、このよ
うな無段変速機の潤滑装置にあっては、潤滑油用パイプ
に潤滑油を供給するオイルポンプが必要となるので、装
置が大型化するおそれがある。また、潤滑油を供給する
オイルポンプを他のポンプと共用としても、潤滑油用の
配管や潤滑油用パイプについては専用のものが必要とな
り、装置が複雑となる。However, in such a continuously variable transmission lubricating device, an oil pump for supplying the lubricating oil to the lubricating oil pipe is required, which may result in an increase in size of the device. There is. Further, even if the oil pump for supplying the lubricating oil is shared with other pumps, dedicated pipes for the lubricating oil and lubricating oil pipes are required, which complicates the apparatus.
【０００７】また、密封構造であるケーシングには，ケ
ーシング内の内圧変化を防ぐためのエアブリーザを取り
付ける必要があり、エアブリーザの取り付け位置として
は、強度上の理由からケーシングの肉厚が厚く形成され
ている肉厚部が適する。しかし、この肉厚部には駆動軸
及び従動軸が設けられているので、肉厚部に囲まれた部
分ではプーリやベルトから潤滑油が飛散し、飛散した潤
滑油がエアブリーザから吹き出すおそれがあり、肉厚部
にエアブリーザを設けることは難しい。このため、エア
ブリーザを肉厚部から外れた薄肉部に設けなければなら
ず、強度上必要とされない部分のケーシングの肉厚を厚
く形成することになり、重量が増大してしまうおそれが
ある。Further, it is necessary to attach an air breather for preventing a change in internal pressure in the casing, which is a hermetically sealed structure, and the attachment position of the air breather is made thick because of its strength. Suitable for thick parts. However, since the drive shaft and the driven shaft are provided in this thick portion, the lubricating oil may be scattered from the pulley and the belt in the portion surrounded by the thick portion, and the scattered lubricating oil may be blown out from the air breather. , It is difficult to provide an air breather in the thick part. For this reason, the air breather must be provided in a thin portion deviated from the thick portion, and the thickness of the casing in a portion that is not required in terms of strength is increased, which may increase the weight.
【０００８】本発明は、このような従来の課題を解決す
るためになされたもので、その目的とするところは、簡
単な構造でベルトに適正な潤滑を行うことができ、か
つ、駆動軸及び従動軸が設けられている付近へエアブリ
ーザを取り付けることができる無段変速機の潤滑装置を
提供することにある。The present invention has been made in order to solve such a conventional problem, and an object of the present invention is to allow a belt to be appropriately lubricated with a simple structure and to provide a drive shaft and a drive shaft. An object of the present invention is to provide a lubrication device for a continuously variable transmission in which an air breather can be attached in the vicinity of a driven shaft.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に、この発明は、潤滑油を封入したケーシング内に収容
され、駆動軸に設けられプーリ溝の溝幅の増減が可能な
駆動側プーリと、従動軸に設けられプーリ溝の溝幅の増
減が可能な従動側プーリと、前記駆動側プーリと従動側
プーリとに巻きかけられたベルトとを備え、前記両プー
リのプーリ溝の幅を増減し前記ベルトの回転半径を増減
させて変速比を変化させる無段変速機の潤滑装置であっ
て、前記ベルトの回転部分の外側に形成され前記ケーシ
ングのエアブリーザ側へ飛散する潤滑油を受ける油受け
部と、この油受け部で受けた潤滑油を流通し前記ベルト
の非屈曲部分に供給する油供給部とを備えた潤滑油供給
手段を、前記ケーシング内に設けたことを特徴とするも
のである。To achieve the above object, the present invention is directed to a drive side pulley which is housed in a casing in which lubricating oil is sealed and which is provided on a drive shaft and in which the groove width of a pulley groove can be increased or decreased. And a driven pulley that is provided on the driven shaft and is capable of increasing or decreasing the groove width of the pulley groove, and a belt wound around the drive pulley and the driven pulley, and A lubricating device for a continuously variable transmission that increases or decreases to change the gear ratio by increasing or decreasing the radius of gyration of the belt, the oil receiving lubricating oil formed outside the rotating portion of the belt and scattered to the air breather side of the casing. Lubricating oil supply means provided with a receiving part and an oil supplying part which circulates the lubricating oil received by the oil receiving part and supplies it to the non-bent portion of the belt is provided in the casing. Is.
【００１０】[0010]
【作用】潤滑油は、駆動側プーリ、従動側プーリ、及び
ベルトの回転部分等から、ベルトの進行方向外周側に向
かって飛散する。飛散した潤滑油は、潤滑油供給手段の
油受け部で受けられ、油供給部によって流通してベルト
に供給される。また、ベルトに必要な潤滑油の量はベル
トの周速に対応して増減するが、このベルトの周速に対
応して飛散する潤滑油の量も増減し、油受け部で受ける
潤滑油の量も増減する。従って、ベルトの周速が速いと
きには潤滑油の供給量が増加し、ベルトの周速が遅いと
きには潤滑油の供給量が減少するので、ベルトが適当か
つ充分に潤滑される。The lubricating oil is scattered from the driving pulley, the driven pulley, the rotating portion of the belt, and the like toward the outer peripheral side in the traveling direction of the belt. The scattered lubricating oil is received by the oil receiving portion of the lubricating oil supply means, is circulated by the oil supplying portion, and is supplied to the belt. Also, the amount of lubricating oil required for the belt increases / decreases in accordance with the peripheral speed of the belt, but the amount of lubricating oil scattered in accordance with the peripheral speed of the belt also increases / decreases, and The amount also increases and decreases. Therefore, when the peripheral speed of the belt is high, the supply amount of the lubricating oil increases, and when the peripheral speed of the belt is low, the supply amount of the lubricating oil decreases, so that the belt is appropriately and sufficiently lubricated.
【００１１】また、油受け部がケーシングのエアブリー
ザ側へ飛散する潤滑油を受けるので、エアブリーザから
潤滑油が吹き出すおそれがない。Further, since the oil receiving portion receives the lubricating oil scattered to the air breather side of the casing, there is no possibility that the lubricating oil will blow out from the air breather.
【００１２】[0012]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【００１３】図１は、この発明による無段変速機の潤滑
装置の平面断面図であり、図２は、図１の側面断面図で
ある。FIG. 1 is a plan sectional view of a lubricating device for a continuously variable transmission according to the present invention, and FIG. 2 is a side sectional view of FIG.
【００１４】無段変速機１は、増速ギヤ組３、駆動側プ
ーリ５、従動側プーリ７などから構成され、潤滑油の封
入されたケーシング１７内に収容されている。ケーシン
グ１７は、図２の左側が鉛直方向上側、右側が鉛直方向
下側となるように、車両に搭載されている。The continuously variable transmission 1 is composed of a speed increasing gear set 3, a driving side pulley 5, a driven side pulley 7, etc., and is housed in a casing 17 in which lubricating oil is sealed. The casing 17 is mounted on the vehicle so that the left side in FIG. 2 is the vertically upper side and the right side is the vertically lower side.
【００１５】増速ギヤ組３は、互いに噛合った大小の歯
車１３，１５からなり、大歯車１３は、ケーシング１７
に支持された軸１９にベアリング２１を介して支承さ
れ、大歯車１３の一部は、ケーシング１７から突出して
図示しないエンジン側の出力歯車と噛合っている。小歯
車１５は、駆動軸２３に固定され、駆動軸２３は、ベア
リング２５，２７を介してケーシング１７に支承されて
いる。The speed increasing gear set 3 is composed of large and small gears 13 and 15 meshing with each other, and the large gear 13 is a casing 17.
The large gear 13 is supported by a shaft 19 supported by a bearing 21 via a bearing 21, and a part of the large gear 13 projects from the casing 17 and meshes with an output gear on the engine side (not shown). The small gear 15 is fixed to the drive shaft 23, and the drive shaft 23 is supported by the casing 17 via bearings 25 and 27.
【００１６】駆動側プーリ５は、駆動軸２３と一体の固
定プーリ片２９と、可動プーリ片３１とを備え、可動プ
ーリ片３１は、駆動軸２３の外周に固定されたハブ３３
との間に形成されたトルクカム３５により相対回転しな
がら軸方向移動可能に連結されている。The drive pulley 5 includes a fixed pulley piece 29 integral with the drive shaft 23 and a movable pulley piece 31, and the movable pulley piece 31 is fixed to the outer periphery of the drive shaft 23.
A torque cam 35 formed between and is connected so as to be movable in the axial direction while relatively rotating.
【００１７】従動側プーリ７は、従動軸３７と一体の固
定プーリ片３９と、可動プーリ片４１とを備え、可動プ
ーリ片４１は、従動軸３７の外周に固定されたハブ４３
との間に形成されたトルクカム４５により相対回転しな
がら軸方向移動自在に連結されている。従動軸３７はベ
アリング４７，４９を介してケーシング１７に支承さ
れ、ケーシング１７を貫通した先端にはプーリ５１が固
定されている。プーリ５１は、各溝部５３，５５に装着
された図示しないベルトによりオイルポンプ側とオルタ
ネータ側のベルト車に連結されている。The driven pulley 7 includes a fixed pulley piece 39 integrated with the driven shaft 37 and a movable pulley piece 41. The movable pulley piece 41 is fixed to the outer periphery of the driven shaft 37.
A torque cam 45 formed between and is connected so as to be movable in the axial direction while relatively rotating. The driven shaft 37 is supported by the casing 17 via bearings 47 and 49, and a pulley 51 is fixed to the tip end that penetrates the casing 17. The pulley 51 is connected to the belt wheels on the oil pump side and the alternator side by belts (not shown) mounted in the groove portions 53, 55.
【００１８】駆動側プーリ５と従動側プーリ７には、湿
式タイプの金属製のベルト６１が巻きかけられ、ベルト
６１は、各プーリ片２９，３１，３９，４１の間に形成
されたベルト溝５７，５９に装着されている。従動側プ
ーリ７の可動プーリ片４１とハブ４３との間には皿ばね
６３が配置され、可動プーリ片４１は皿バネ６３によっ
て固定プーリ片３９側に押圧される。これによりベルト
６１に張力が付与され、滑りが抑制される。A wet type metal belt 61 is wound around the drive side pulley 5 and the driven side pulley 7, and the belt 61 has a belt groove formed between the pulley pieces 29, 31, 39 and 41. It is attached to 57 and 59. A disc spring 63 is arranged between the movable pulley piece 41 of the driven pulley 7 and the hub 43, and the movable pulley piece 41 is pressed by the disc spring 63 toward the fixed pulley piece 39 side. As a result, tension is applied to the belt 61 and slippage is suppressed.
【００１９】各トルクカム３５，４５は、トルク変動に
よりベルト６１の張力が急増したときに、各可動プーリ
片３１，４１をそれぞれ固定プーリ片２９，３９側に押
圧して摩擦力を大きくし、ベルト６１の滑りを防止する
ように働く。The torque cams 35 and 45 press the movable pulley pieces 31 and 41 toward the fixed pulley pieces 29 and 39, respectively, to increase the frictional force when the tension of the belt 61 sharply increases due to the torque fluctuation, and the belts 61 and 41 increase the frictional force. 61 works to prevent slipping.
【００２０】駆動側プーリ５のハブ３３には、可動プー
リ片３１との間に０リング６５を配置した隔壁部材６７
が固定され、隔壁部材６７と可動プーリ片３１との間に
は圧力室６９が形成されている。圧力室６９には、ケー
シング１７と駆動軸２３を通して形成された油路７１と
油プラグ７３とを介して、図示しないオイルポンプから
油圧が供給され、可動プーリ片３１を固定プーリ片２９
側に押圧する。On the hub 33 of the driving pulley 5, a partition wall member 67 is provided with an O-ring 65 arranged between the hub 33 and the movable pulley piece 31.
Is fixed, and a pressure chamber 69 is formed between the partition member 67 and the movable pulley piece 31. Hydraulic pressure is supplied to the pressure chamber 69 from an oil pump (not shown) through an oil passage 71 formed through the casing 17 and the drive shaft 23 and an oil plug 73, and the movable pulley piece 31 is fixed to the fixed pulley piece 29.
Press to the side.
【００２１】油圧室６９に油圧を供給しない状態では、
従動側プーリ７の皿ばね６３の付勢力によって可動プー
リ片４１が押圧されて、従動側プーリ７のベルト溝５９
の溝幅は最小となり、駆動側プーリ５のベルト溝５７の
溝幅は最大となっている。このとき、図２において実線
で示すように、駆動側プーリ５側のベルト６１の回転半
径は最小となり、従動側プーリ７側のベルト６１の回転
半径は最大となるので、増速比は最小（最減速）とな
る。When the hydraulic pressure is not supplied to the hydraulic chamber 69,
The movable pulley piece 41 is pressed by the biasing force of the disc spring 63 of the driven pulley 7, and the belt groove 59 of the driven pulley 7 is pressed.
Has the smallest groove width, and the belt groove 57 of the drive pulley 5 has the largest groove width. At this time, as indicated by the solid line in FIG. 2, the radius of gyration of the belt 61 on the drive side pulley 5 side becomes the minimum and the radius of gyration of the belt 61 on the driven side pulley 7 side becomes the maximum, so the speed increase ratio is the minimum ( Maximum deceleration).
【００２２】一方、従動軸３７には油路７２が設けら
れ、油プラグ７４を介して図示しないオイルポンプから
油が供給され、可動プーリ片４１、トルクカム４５、皿
バネ６３等の摺動部を潤滑する。On the other hand, an oil passage 72 is provided in the driven shaft 37, and oil is supplied from an oil pump (not shown) via an oil plug 74 to drive the sliding portions of the movable pulley piece 41, the torque cam 45, the disc spring 63, and the like. Lubricate.
【００２３】油圧室６９に油圧を供給すると可動プーリ
片３１が押圧されて、駆動側プーリ５のベルト溝５７の
溝幅は減少し、従動側プーリ７のベルト溝５９の溝幅は
増大する。これに伴って、駆動側プーリ５側のベルト６
１の回転半径は増大し、従動側プーリ７側のベルト６１
の回転半径は減少するので、増速比は増加する。When the hydraulic pressure is supplied to the hydraulic chamber 69, the movable pulley piece 31 is pressed to decrease the groove width of the belt groove 57 of the driving pulley 5 and increase the groove width of the belt groove 59 of the driven pulley 7. Along with this, the belt 6 on the drive pulley 5 side
The turning radius of No. 1 increases, and the belt 61 on the driven pulley 7 side
Since the radius of gyration of is decreased, the speed increasing ratio is increased.
【００２４】さらに油圧を供給すると、駆動側プーリ５
のベルト幅が最大となり、従動側プーリ７のベルト幅が
最小となる。このとき、図２において破線で示すよう
に、駆動側プーリ５側のベルト６１の回転半径は最大と
なり、従動側プーリ７側のベルト６１の回転半径は最小
となるので、増速比は最大（最増速）となる。When the hydraulic pressure is further supplied, the driving pulley 5
The belt width of the driven pulley 7 becomes the minimum, and the belt width of the driven pulley 7 becomes the minimum. At this time, as indicated by a broken line in FIG. 2, the radius of gyration of the belt 61 on the drive side pulley 5 side becomes the maximum and the radius of gyration of the belt 61 on the driven side pulley 7 side becomes the minimum, so that the speed increasing ratio is the maximum ( Maximum speed).
【００２５】エンジンの駆動力は増速ギヤ組３で増速さ
れ、駆動側プーリ５から従動側プーリ７に適宜変速され
てプーリ５１を回転し、図示しないオイルポンプとオル
タネータとを回転駆動する。駆動側プーリ５及び従動側
プーリ７の回転方向は、図２において反時計回り（図２
中矢印Ｂ方向）となっている。The driving force of the engine is increased by the speed increasing gear set 3, and is appropriately changed from the driving side pulley 5 to the driven side pulley 7 to rotate the pulley 51, thereby rotationally driving an oil pump and an alternator (not shown). The drive pulley 5 and the driven pulley 7 rotate in the counterclockwise direction (see FIG. 2).
The direction of the middle arrow B).
【００２６】図２に示すように、従動側プーリ７の外周
の外側には、鉛直上方から駆動側プーリ５側の下方へ向
かって沿うように形成された潤滑油供給手段としての潤
滑油供給部材７５が設けられている。As shown in FIG. 2, a lubricating oil supply member serving as a lubricating oil supply means is formed on the outside of the outer periphery of the driven pulley 7 so as to extend from the vertically upper part to the lower part on the driving pulley 5 side. 75 are provided.
【００２７】図３（ａ）（ｂ）に示すように、潤滑油供
給部材７５には、側壁７７に囲まれた油受け面７９を有
する油受け部８１と、油受け部８１から二股に分岐して
延設され、断面コ字状の油溝８３を有する油供給部８５
が設けられている。両油供給部８５の油溝８３を形成す
る側壁８７のうち、外側は油受け部８１の側壁７７から
延設され、内側は両油供給部８５の分岐部分で連結して
いる。油受け部８１には４つの取付孔８９が形成され、
潤滑油供給部材７５は、取付孔８９にて従動側プーリ７
上方のケーシング１７内壁にネジ止めされている。油受
け面７９と油溝８３とは、潤滑油供給部材７５をケーシ
ング１７内に取り付けたときに、従動側プーリ７と対向
する側に位置するように形成されている。As shown in FIGS. 3A and 3B, the lubricating oil supply member 75 has an oil receiving portion 81 having an oil receiving surface 79 surrounded by a side wall 77, and the oil receiving portion 81 is bifurcated. Oil supply section 85 that has an oil groove 83 having a U-shaped cross section
Is provided. Out of the side walls 87 forming the oil grooves 83 of both oil supply parts 85, the outer side is extended from the side wall 77 of the oil receiving part 81, and the inner side is connected by the branched parts of both oil supply parts 85. Four mounting holes 89 are formed in the oil receiving portion 81,
The lubricating oil supply member 75 is attached to the driven pulley 7 through the mounting hole 89.
It is screwed to the inner wall of the upper casing 17. The oil receiving surface 79 and the oil groove 83 are formed so as to be located on the side facing the driven pulley 7 when the lubricating oil supply member 75 is mounted in the casing 17.
【００２８】図４及び図５（ａ）に示すように、油供給
部８５は、側面形状が略円弧状で、先端に向かうほど幅
細となり、かつ、油供給部８５間に生じる隙間９１が先
端では狭く中央では広くなるように形成されている。ケ
ーシング１７内への取り付け時において、油供給部間８
５に生じる隙間９１には、従動側プーリ７から駆動側プ
ーリ５に向かって（図２中矢印Ｃ方向に）進行するベル
ト６１が増速比によらず常に非接触で挿通されている。
また、油供給部８５の先端部分は、駆動側プーリ５から
従動側プーリ７に向かって（図２中矢印Ｄ方向に）進行
するベルト６１の上方に常に位置し、かつ鉛直下方より
もやや従動側プーリ７に向かって湾曲している。As shown in FIGS. 4 and 5 (a), the oil supply portion 85 has a substantially arcuate side surface, becomes narrower toward the tip, and has a gap 91 formed between the oil supply portions 85. It is formed so that it is narrow at the tip and wide at the center. At the time of installation in the casing 17, between the oil supply parts 8
A belt 61 that travels from the driven-side pulley 7 toward the drive-side pulley 5 (in the direction of arrow C in FIG. 2) is always inserted in the gap 91 formed in 5 without contact regardless of the speed increasing ratio.
Further, the tip end portion of the oil supply portion 85 is always located above the belt 61 traveling from the drive side pulley 5 toward the driven side pulley 7 (in the direction of arrow D in FIG. 2) and is slightly driven below the vertical direction. It is curved toward the side pulley 7.
【００２９】また、図２に示すように、潤滑油供給部材
７５の外側で、ケーシング１７の鉛直上方の略中央付近
には、ケーシング内の内圧変化を防ぐためのエアブリー
ザ９３が取り付けられている。このエアブリーザ９３の
取り付け部分は、駆動軸２３及び従動軸３７の設けられ
ている付近であり、強度上の理由からケーシング１７の
厚さが肉厚に形成してあるので、特にエアブリーザ１７
のためにケーシング１７を厚肉に形成しているものでは
ない。Further, as shown in FIG. 2, an air breather 93 for preventing a change in the internal pressure inside the casing is attached outside the lubricating oil supply member 75 and in the vicinity of substantially the center vertically above the casing 17. The mounting portion of the air breather 93 is in the vicinity of the drive shaft 23 and the driven shaft 37, and the thickness of the casing 17 is made thick for the reason of strength.
Therefore, the casing 17 is not formed thick.
【００３０】このように構成された無段変速機１を作動
すると、ベルト６１の回転部分及び従動側プーリ７の表
面についた潤滑油に遠心力が作用して、潤滑油が飛散す
る。潤滑油の飛散方向は、放射方向よりもベルト６１の
進行側に傾いた方向に、例えば、図２に示すように、最
減速時には矢印Ｅ方向に、また、最増速時には矢印Ｆ方
向に飛散する。When the continuously variable transmission 1 thus constructed is operated, centrifugal force acts on the lubricating oil on the rotating portion of the belt 61 and the surface of the driven pulley 7, and the lubricating oil is scattered. The lubricating oil is scattered in a direction inclined to the traveling side of the belt 61 with respect to the radial direction, for example, in the arrow E direction at the maximum deceleration and in the arrow F direction at the maximum acceleration, as shown in FIG. To do.
【００３１】飛散した潤滑油は、油受け部８１の油受け
面７９にあたり、油溝８３を鉛直下方に向かって流通し
て、油供給部８５の先端から落下する。落下した潤滑油
は、駆動側プーリ５から従動側プーリ７に向かって（図
２中矢印Ｄ方向に）進行するベルト６１の非屈曲部分に
供給される。これにより、ベルト６１から離脱した潤滑
油を再度ベルト６１に直接供給することができ、かつ、
供給場所をベルト６１の非屈曲部分としたので、潤滑油
の供給をより確実に行うことができる。The scattered lubricating oil hits the oil receiving surface 79 of the oil receiving portion 81, flows through the oil groove 83 vertically downward, and drops from the tip of the oil supply portion 85. The dropped lubricating oil is supplied to the non-bent portion of the belt 61 that travels from the drive pulley 5 toward the driven pulley 7 (in the direction of arrow D in FIG. 2). Thereby, the lubricating oil separated from the belt 61 can be directly supplied to the belt 61 again, and
Since the supply place is the non-bent portion of the belt 61, the lubricating oil can be supplied more reliably.
【００３２】また、図６に示すように、ベルト６１の周
速Ｖとベルト６１に必要な潤滑油量Ｑとの関係は、周速
Ｖが増加すると潤滑油量Ｑも増加するという関係にある
が、周速Ｖの増加時には飛散する潤滑油量も増加するの
で、ベルト６１の周速Ｖに応じて、すなわち増速比に応
じて的確な量の潤滑油を供給することができる。Further, as shown in FIG. 6, the relationship between the peripheral speed V of the belt 61 and the lubricating oil amount Q required for the belt 61 is that the lubricating oil amount Q also increases as the peripheral speed V increases. However, when the peripheral speed V increases, the amount of lubricating oil that scatters also increases. Therefore, an appropriate amount of lubricating oil can be supplied according to the peripheral speed V of the belt 61, that is, according to the speed increasing ratio.
【００３３】また、エアブリーザ９は潤滑油供給部材７
５の外側に設けられ、エアブリーザ９側へ飛散する潤滑
油は油受け部８１によって受けられるので、エアブリー
ザ９に潤滑油がかかる恐れがない。また、エアブリーザ
９を設けるために特にケーシング１７を肉厚に形成する
必要がないので、ケーシング９の重量が増大することも
ない。Further, the air breather 9 is a lubricating oil supply member 7.
Lubricant oil provided outside the air breather 5 and scattered to the air breather 9 side is received by the oil receiving portion 81, so there is no risk of the lubricant oil being applied to the air breather 9. Further, since it is not necessary to form the casing 17 to be thick in order to provide the air breather 9, the weight of the casing 9 does not increase.
【００３４】なお、この発明は上記実施例に限るもので
はなく、また、潤滑油供給部材７５の形状や取り付け場
所もこれに限定されるものではない。The present invention is not limited to the above-mentioned embodiment, and the shape and mounting place of the lubricating oil supply member 75 are not limited to this.
【００３５】[0035]
【発明の効果】以上説明してきたように、この発明によ
れば、簡単な構成によって、飛散した潤滑油をベルトの
非屈曲部分に供給し、かつ、ベルトの周速に応じた適当
な量の潤滑油を供給することができるので、適当かつ充
分にベルトの潤滑を行うことができる。As described above, according to the present invention, the scattered lubricating oil is supplied to the non-bent portion of the belt with a simple structure, and an appropriate amount of the lubricating oil is supplied according to the peripheral speed of the belt. Since the lubricating oil can be supplied, the belt can be appropriately and sufficiently lubricated.
【００３６】また、駆動軸及び従動軸が設けられている
付近にエアブリーザを取り付けても、油受け部が飛散す
る潤滑油を受けるのでエアブリーザから潤滑油が吹き出
す恐れがなく、また、エアブリーザの取り付けのために
ケーシングの肉厚を厚く形成する必要がないので重量が
増大しない。Even if an air breather is installed near the drive shaft and the driven shaft, the oil receiving portion receives the lubricating oil that scatters, so there is no risk of the lubricating oil blowing out from the air breather. Therefore, it is not necessary to increase the thickness of the casing, so that the weight does not increase.
【図１】この発明による無段変速機の潤滑装置の平面断
面図である。FIG. 1 is a plan sectional view of a lubricating device for a continuously variable transmission according to the present invention.
【図２】図１の側面断面図である。FIG. 2 is a side sectional view of FIG.
【図３】潤滑油供給部材の斜視図であり、（ａ）は外側
の図を示し、（ｂ）は内側の図を示す。FIG. 3 is a perspective view of a lubricating oil supply member, (a) showing an outside view and (b) showing an inside view.
【図４】潤滑油供給部材の側面図である。FIG. 4 is a side view of a lubricating oil supply member.
【図５】（ａ）は、図４のＡ−Ａ断面図であり、（ｂ）
は、図４の正面図である。5A is a cross-sectional view taken along the line AA of FIG. 4, and FIG.
FIG. 5 is a front view of FIG. 4.
【図６】ベルトの周速とベルトの潤滑に必要な潤滑油量
との関係を示す図である。FIG. 6 is a diagram showing the relationship between the peripheral speed of the belt and the amount of lubricating oil required to lubricate the belt.
【図７】従来の無段変速機の潤滑装置の平面断面図であ
る。FIG. 7 is a plan sectional view of a conventional lubricating device for a continuously variable transmission.
１ 無段変速機 ５ 駆動側プーリ ７ 従動側プーリ １７ ケーシング ２３ 駆動軸 ３７ 従動軸 ５７ ベルト溝 ５９ ベルト溝 ６１ ベルト ７５ 潤滑油供給部材（潤滑油供給手段） ８１ 油受け部 ８５ 油供給部 ９３ エアブリーザ 1 continuously variable transmission 5 drive side pulley 7 driven side pulley 17 casing 23 drive shaft 37 driven shaft 57 belt groove 59 belt groove 61 belt 75 lubricating oil supply member (lubricating oil supply means) 81 oil receiving part 85 oil supplying part 93 air breather
Claims (1)
れ、駆動軸に設けられプーリ溝の溝幅の増減が可能な駆
動側プーリと、従動軸に設けられプーリ溝の溝幅の増減
が可能な従動側プーリと、前記駆動側プーリと従動側プ
ーリとに巻きかけられたベルトとを備え、前記両プーリ
の溝幅を増減し前記ベルトの回転半径を増減させて変速
比を変化させる無段変速機の潤滑装置であって、 前記ベルトの回転部分の外側に形成され前記ケーシング
のエアブリーザ側へ飛散する潤滑油を受ける油受け部
と、この油受け部で受けた潤滑油を流通し前記ベルトの
非屈曲部分に供給する油供給部とを備えた潤滑油供給手
段を、前記ケーシング内に設けたことを特徴とする無段
変速機の潤滑装置。1. A drive-side pulley, which is housed in a casing in which lubricating oil is sealed, is provided on a drive shaft and is capable of increasing or decreasing the groove width of a pulley groove, and a groove provided on a driven shaft is capable of increasing or decreasing the groove width of a pulley groove. A continuously variable pulley, and a belt wound around the driving pulley and the driven pulley, for continuously changing the gear ratio by increasing or decreasing the groove width of both pulleys and increasing or decreasing the radius of gyration of the belt. A lubrication device for a transmission, wherein an oil receiving portion is formed outside a rotating portion of the belt and receives lubricating oil scattered to the air breather side of the casing; and the lubricating oil received by the oil receiving portion is circulated to the belt. A lubricating device for a continuously variable transmission, comprising: a lubricating oil supply means provided with an oil supply part for supplying the non-bent portion of the lubrication device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4211390A JPH0658390A (en) | 1992-08-07 | 1992-08-07 | Lubrication system for non-stage transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4211390A JPH0658390A (en) | 1992-08-07 | 1992-08-07 | Lubrication system for non-stage transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0658390A true JPH0658390A (en) | 1994-03-01 |
Family
ID=16605174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4211390A Pending JPH0658390A (en) | 1992-08-07 | 1992-08-07 | Lubrication system for non-stage transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0658390A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0984206A3 (en) * | 1998-09-02 | 2002-09-11 | Honda Giken Kogyo Kabushiki Kaisha | Vehicular transmission |
| JP2021001667A (en) * | 2019-06-21 | 2021-01-07 | ジヤトコ株式会社 | Power transmission device |
-
1992
- 1992-08-07 JP JP4211390A patent/JPH0658390A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0984206A3 (en) * | 1998-09-02 | 2002-09-11 | Honda Giken Kogyo Kabushiki Kaisha | Vehicular transmission |
| JP2021001667A (en) * | 2019-06-21 | 2021-01-07 | ジヤトコ株式会社 | Power transmission device |
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