JPH034064A - Belt type continuously variable transmission - Google Patents
Belt type continuously variable transmissionInfo
- Publication number
- JPH034064A JPH034064A JP1139472A JP13947289A JPH034064A JP H034064 A JPH034064 A JP H034064A JP 1139472 A JP1139472 A JP 1139472A JP 13947289 A JP13947289 A JP 13947289A JP H034064 A JPH034064 A JP H034064A
- Authority
- JP
- Japan
- Prior art keywords
- pulley
- belt
- shaft
- variable
- rotating shaft
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Transmission Devices (AREA)
- Structure Of Transmissions (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、出力取出軸（以下ＰＴＯ軸という）を有する
ベルト式無段変速装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a belt type continuously variable transmission having an output output shaft (hereinafter referred to as a PTO shaft).
（従来の技術）
従来より、例えば実開昭６３−１７１７５２号公報に記
載されるように、ティラーや管理機などの農業機械にお
いて、ベルト式変速機が用いられている。(Prior Art) Belt type transmissions have conventionally been used in agricultural machinery such as tillers and management machines, as described in, for example, Japanese Utility Model Application Publication No. 63-171752.
また、そのようなベルト式変速機において、出力を取出
し、外部機器を駆動するためのＰＴＯ軸を設けたものも
知られている。Furthermore, among such belt-type transmissions, one is known that is provided with a PTO shaft for extracting output and driving external equipment.
（発明が解決しようとする課題）
ところが、そのような変速装置では、駆動軸とＰＴＯ軸
とが同じ変速機構によって駆動されているため、車速を
変えると、ＰＴＯ軸の回転速度も変わってしまい、各種
多様な作業に対応できない。(Problem to be Solved by the Invention) However, in such a transmission, the drive shaft and the PTO shaft are driven by the same transmission mechanism, so when the vehicle speed is changed, the rotational speed of the PTO shaft also changes. Unable to handle a wide variety of tasks.
そこで、変速機構を二重に設けることが考えられるが、
そのようにすると、２つの変速機構を並列に配置するこ
とになるため、変速機自体が大型化する。Therefore, it may be possible to provide a dual transmission mechanism, but
In this case, two transmission mechanisms are arranged in parallel, which increases the size of the transmission itself.
本発明はかかる点に鑑みてなされたもので、大型化する
ことなく、ＰＴＯ軸を各種態様で回転させることができ
るベルト式無段変速装置を提供することを目的とする。The present invention has been made in view of these points, and an object of the present invention is to provide a belt-type continuously variable transmission that can rotate a PTO shaft in various ways without increasing the size.
（課題を解決するための手段）
本発明は、車輪などを駆動する第１回転軸とＰＴｏ軸を
駆動する第２回転軸とを二重軸構造を利用して構成し、
該両回転軸の間にクラッチ手段を介設したものである。(Means for Solving the Problems) The present invention utilizes a dual shaft structure to configure a first rotating shaft that drives a wheel or the like and a second rotating shaft that drives a PTo shaft,
A clutch means is interposed between the two rotating shafts.
具体的には、可動シーブと固定シーブとからなる駆動側
の可変プーリと従動側のプーリとの間にベルト・が巻回
されて可変プーリ機構が構成される一方、上記可変プー
リ機構の可変プーリに取付けられた駆動側のプーリと別
の従動側のプーリとの間にベルトが巻回されて伝動機構
が構成され、上記変速ベルト及び一般ベルトにそれぞれ
ベルトテンショナが適用され、第１回転軸の外側に円筒
状の第２回転軸が回転可能に外嵌されて二重軸構造が形
成され、上記第１及び第２回転軸の間にクラッチ手段が
介設され、上記第１または第２回転軸の一方に可変プー
リ機構の従動側のプーリが、他方に伝動機構の従動側の
プーリがそれぞれ取付けられ、さらに、上記第１または
第２回転軸の他方が出力取出軸に連係されていることを
特徴とするものである。Specifically, a variable pulley mechanism is constructed by winding a belt between a variable pulley on the driving side and a pulley on the driven side, which are made up of a movable sheave and a fixed sheave. A transmission mechanism is constructed by winding a belt between a drive-side pulley and another driven-side pulley attached to the transmission belt, and a belt tensioner is applied to each of the speed change belt and the general belt. A cylindrical second rotating shaft is rotatably fitted on the outside to form a double shaft structure, and a clutch means is interposed between the first and second rotating shafts, and the first or second rotating shaft A driven pulley of the variable pulley mechanism is attached to one of the shafts, a driven pulley of the transmission mechanism is attached to the other, and the other of the first or second rotating shaft is linked to the output output shaft. It is characterized by:
（作用）
第１回転軸の外側に円筒状の第２回転軸が位置し、スペ
ースを取らず、クラッチ手段の連結解除状態で、第１回
転軸でＰＴＯ軸又は駆動軸の駆動力のうちの一方が、第
２回転軸でＰＴＯ軸又は駆動軸の駆動力のうちの他方が
伝達される。(Function) A cylindrical second rotating shaft is located outside the first rotating shaft, so that it does not take up space, and when the clutch means is in a disconnected state, the first rotating shaft receives the driving force of the PTO shaft or the drive shaft. One is a second rotating shaft, and the other of the driving force of the PTO shaft or the drive shaft is transmitted.
クラッチ手段によって第１回転軸と第２回転軸とを連結
すると、一般ベルトのベルトテンショナによる抑圧解除
により、変速ベルトによる可変プーリ機構を介して、第
１及び第２回転軸が変速可能に回転される。また、変速
ベルトのベルトテンショナによる押圧解除により、一般
ベルトによる伝動機構を介して、第１及び第２回転軸が
一定速度で回転される。When the first rotating shaft and the second rotating shaft are connected by the clutch means, the first and second rotating shafts are rotated in a variable speed manner via a variable pulley mechanism using a variable speed belt by releasing the suppression by the belt tensioner of the general belt. Ru. Further, by releasing the pressure on the speed change belt by the belt tensioner, the first and second rotating shafts are rotated at a constant speed via a transmission mechanism using a general belt.
（実施例）
以下本発明の実施例を図面に沿って詳細に説明する。本
発明に係るベルト式変速装置１０１は、第９図に示すよ
うに、作業機としてのティラー１０２に適用される。(Example) Examples of the present invention will be described in detail below with reference to the drawings. A belt type transmission 101 according to the present invention is applied to a tiller 102 as a working machine, as shown in FIG.
全体構成を示す第１図において、１はエンジン、２はエ
ンジン１の出力軸で、該出力軸２に、変速ベルトＡ用の
駆動側の可変プーリ３が取付けられている。上記可変プ
ーリ３は、固定シーブ４と可動シーブ５とからなり、両
シーブ４，５の間に空転用ベアリング６が配設されてい
る。しかして、固定シーブ４の上端部に、一般ベルトＢ
用のプーリ部７が形成されている。In FIG. 1 showing the overall configuration, 1 is an engine, 2 is an output shaft of the engine 1, and a drive-side variable pulley 3 for a speed change belt A is attached to the output shaft 2. The variable pulley 3 is composed of a fixed sheave 4 and a movable sheave 5, and an idling bearing 6 is disposed between the sheaves 4 and 5. Therefore, the general belt B is attached to the upper end of the fixed sheave 4.
A pulley portion 7 for use is formed.
１１は変速ユニットで、ユニットケースｌｌａの内部に
車輪１．２，１．２を駆動する変速機構１３と、ＰＴＯ
軸１軸合４転する回転機構１５とが配設されている。Reference numeral 11 denotes a transmission unit, which includes a transmission mechanism 13 for driving wheels 1.2, 1.2 and a PTO inside a unit case lla.
A rotation mechanism 15 that rotates one axis four times is provided.
上記可変プーリ３の従動側のプーリ１６は第１回転軸１
７に取付けられ、該第１回転軸１７に変速機構１３に連
係されるギヤ１４が取付けられている。また、該第１回
転軸１７の外側に軸受８゜８を介して回転可能に第２回
転軸１８が支承され、該第２回転軸１８の一端に上記プ
ーリ部７の従動側のプーリ１９が取付けられ、他端に回
転機構１５に連係されるギヤ２０が取付けられている。The driven pulley 16 of the variable pulley 3 is connected to the first rotating shaft 1
7, and a gear 14 linked to the transmission mechanism 13 is attached to the first rotating shaft 17. Further, a second rotating shaft 18 is rotatably supported on the outside of the first rotating shaft 17 via a bearing 8°8, and a pulley 19 on the driven side of the pulley portion 7 is mounted at one end of the second rotating shaft 18. A gear 20 connected to the rotation mechanism 15 is attached to the other end.
また、上記ベルトＡ、Ｂに対しては、ベルトテンショナ
２１．２２が配設されている。しかして、変速ベルトＡ
側のベルトテンショナ２】は、可変プーリ３ののプーリ
ピッチ径の変化に追従して、ベルトＡの張力を変化させ
るようになっている。Furthermore, belt tensioners 21 and 22 are provided for the belts A and B. However, the speed change belt A
The belt tensioner 2 on the side changes the tension of the belt A in accordance with changes in the pulley pitch diameter of the variable pulley 3.
また、一般ベルトＢ側のベルトテンショナ２２は、図示
しない操作系に連係され、一般ベルトＢに強く押し付け
られるＰＴＯ軸１軸合４動位置と、般ベルトＢを強く押
し付けないＰＴＯ軸１軸合４駆動位置とを取るようにな
っている。The belt tensioner 22 on the general belt B side is linked to an operation system (not shown), and has two positions: one in which the PTO shaft is pressed strongly against the general belt B, and the other in four positions, in which the PTO shaft is not pressed strongly against the general belt B. It is designed to take the drive position.
２３．２４．２５．２６はそれぞれ軸受で、ユニットケ
ースｌｌａに取付けられ、第２回転軸１８、第１回転軸
１７、ＰＴＯ軸１軸合４変速機構１３の軸１３ａを回転
可能に支承している。23, 24, 25, and 26 are bearings, respectively, which are attached to the unit case lla, and rotatably support the second rotating shaft 18, the first rotating shaft 17, and the shaft 13a of the 4-speed transmission mechanism 13 including one PTO shaft. There is.
２９はクラッチ手段で、第１回転軸１７と第２回転軸１
８との連結、連結解除を行うものである。29 is a clutch means that connects the first rotating shaft 17 and the second rotating shaft 1;
This is to connect and disconnect with 8.
上記のように構成すれば、クラッチ手段２９の連結解除
状態では、エンジン１から、可変プーリ３、ベルトＡ、
プーリ１６、第１回転軸１７及び変速機構１３を通じて
車輪１２．１２の駆動力が伝達される。一方、エンジン
１から、可変プーリ３、プーリ部７、ベルトＢ、プーリ
１９、第２回転軸１８及び伝動機構１５を通じて、上記
車輪１２．１２の駆動力の伝達系とは別の伝達系統で、
外部機器を駆動するための駆動力がＰＴＯ軸１４に伝達
される。With the above configuration, when the clutch means 29 is in the disconnected state, the engine 1, the variable pulley 3, the belt A,
The driving force of the wheels 12.12 is transmitted through the pulley 16, the first rotating shaft 17, and the transmission mechanism 13. On the other hand, from the engine 1 through the variable pulley 3, pulley part 7, belt B, pulley 19, second rotating shaft 18 and transmission mechanism 15, a transmission system different from the transmission system of the driving force of the wheels 12.12,
A driving force for driving external equipment is transmitted to the PTO shaft 14.
これによって、プーリ部７は、一定のピッチ径を有する
ので、可変プーリ３のピッチ径の変化により車輪１２．
１２の車速が変化しても、ＰＴＯ軸１４は一定回転速度
で回転する。As a result, since the pulley portion 7 has a constant pitch diameter, a change in the pitch diameter of the variable pulley 3 causes the wheel 12 to change.
Even if the vehicle speed 12 changes, the PTO shaft 14 rotates at a constant rotation speed.
また、第１回転軸１７及び第２回転軸１８が連結された
状態では、ベルトテンショナ２１を押し付はベルトテン
ショナ２２の押し付けを解除すると、両回転軸１７．１
８は可変ブー９３、ベルトＡ及びプーリ１６からなる可
変プーリ機構を介してエンジン１によって回転せしめら
れ、可変プーリ３によって設定されるプーリ比によって
変速駆動される。また、ベルトテンショナ２２を押し付
はベルトテンショナ２１の押し付けを解除すると、両回
転軸１７．１８は可変プーリ３、プーリ部７、ベルトＢ
及びプーリ１９からなる伝動機構を介してエンジン１に
よって回転せしめられ、一定の回転速度でもって駆動さ
れる。In addition, when the first rotation shaft 17 and the second rotation shaft 18 are connected, when the belt tensioner 21 is pressed and the belt tensioner 22 is released from the belt tensioner 22, both rotation shafts 17.1
8 is rotated by the engine 1 via a variable pulley mechanism consisting of a variable boolean 93, a belt A, and a pulley 16, and is driven at variable speeds according to a pulley ratio set by the variable pulley 3. Also, when the belt tensioner 22 is pressed and the belt tensioner 21 is released from the belt tensioner 21, both rotating shafts 17 and 18 are connected to the variable pulley 3, the pulley part 7, and the belt B.
It is rotated by the engine 1 via a transmission mechanism consisting of a pulley 19 and a pulley 19, and is driven at a constant rotational speed.
このように、クラッチ手段２９とベルトテンショナ２１
．２２によって、■第１回転軸１７は変速駆動され、第
２回転軸１８が定速駆動されるモード、■両回転軸１７
．１８ともに定速駆動されるモード、■両回転軸１７．
１８とも変速駆動されるモードとを取り得ることになる
。In this way, the clutch means 29 and the belt tensioner 21
．． 22, ■ a mode in which the first rotating shaft 17 is driven at a variable speed and a second rotating shaft 18 is driven at a constant speed, and ■ both rotating shafts 17.
．． Mode in which both 18 are driven at a constant speed, ■Both rotating shafts 17.
18 can also be in a variable speed drive mode.
上記実施例では、固定シーブ４の一部にプーリ部７を構
成するようにしているが、第２図に示すように、可変プ
ーリ３０の固定シーブ３１が取付けられる出力軸２ Ｅ
Ｐ Ｔ Ｏ軸回転用のプーリ３２を取付けるようにし
、一部がＰＴＯ軸３３となる第１回転軸１７に従動側の
プーリ３４、第２回転軸１８に車輪１２．１２駆動側の
従動側のプーリ３５をそれぞれ取付けるようにしてもよ
い。In the above embodiment, the pulley part 7 is formed in a part of the fixed sheave 4, but as shown in FIG.
A pulley 32 for rotating the PTO axis is attached, a pulley 34 on the driven side of the first rotating shaft 17, a part of which becomes the PTO axis 33, and a pulley 34 on the driven side of the second rotating shaft 18 are attached to the wheels 12 and 12 on the driven side of the driving side. The pulleys 35 may be attached respectively.
第２図に示す機構を具体的に第３図乃至第５図に示す。The mechanism shown in FIG. 2 is specifically shown in FIGS. 3 to 5.
上記駆動側の可変プーリ３０は、第６図及び第７図に示
すように、固定シーブ３１及び可動シーブ３６は、共に
、プーリ面となるシーブ面３７ａ。In the drive-side variable pulley 30, as shown in FIGS. 6 and 7, both the fixed sheave 31 and the movable sheave 36 have a sheave surface 37a that serves as a pulley surface.
３８ａを有するシーブ部３７．３８と、プーリ軸３９に
外嵌される筒状部４０．４１とからなり、固定シーブ３
１の筒状部４０がプーリ軸３９に嵌合固定される一方、
可動シーブ３６の筒状部４１が、プーリ軸３９に固定さ
れた筒状部材４２より半径方向外方に突出する案内ピン
４３に係合する係合溝４４を有し、該案内ビン４３と係
合溝４４との係合関係でプーリ′軸３の軸方向のみに移
動可能となっている。上記筒状部材４２と可動シーブ３
６の筒状部４１との間にはシール材４５．４５が介装さ
れている。The fixed sheave 3 consists of a sheave part 37.38 having a diameter of
While the cylindrical part 40 of 1 is fitted and fixed to the pulley shaft 39,
A cylindrical portion 41 of the movable sheave 36 has an engagement groove 44 that engages with a guide pin 43 that protrudes radially outward from a cylindrical member 42 fixed to the pulley shaft 39, and is engaged with the guide pin 43. The engagement relationship with the matching groove 44 allows the pulley to move only in the axial direction of the shaft 3. The cylindrical member 42 and the movable sheave 3
A sealing material 45, 45 is interposed between the cylindrical portion 41 of No. 6 and the cylindrical portion 41 of No. 6.
上記筒状部材４２の端部には、取付部材４６が嵌合固定
され、該取付部材４６の外周に、筒状部材４２の端面と
取付部材４６のフランジ部４６ａとの間に軸受４７（ベ
アリング）が配設されている。該軸受４７にはローラ台
４８が取付けられ、該ローラ台４８にローラ４９が回転
可能に軸支されている。A mounting member 46 is fitted and fixed to the end of the cylindrical member 42, and a bearing 47 (bearing ) are provided. A roller stand 48 is attached to the bearing 47, and a roller 49 is rotatably supported on the roller stand 48.
一方、可動シーブ３６の筒状部４１には軸受５０が取付
けられ、該軸受５０の外側にカム部材５１が取付けられ
ている。しかして、該カム部材５】に操作系と連係され
る突出部５２が設けられ、カム部材５１を回動すること
によりカム部材５１のカム面が上記ローラ４９に係合し
て軸方向に移動せしめられ、プーリピッチ径を変化させ
るようになっている。このプーリピッチ径の変化に追従
して、ベルトテンショナ５２によるベルトＡの張力も変
化するように、ベルトテンショナ５２がスプリング５４
のスプリング力に抗して回動するようになっている。On the other hand, a bearing 50 is attached to the cylindrical portion 41 of the movable sheave 36, and a cam member 51 is attached to the outside of the bearing 50. The cam member 5 is provided with a protrusion 52 that is linked to the operating system, and by rotating the cam member 51, the cam surface of the cam member 51 engages with the roller 49 and moves in the axial direction. It is designed to change the pulley pitch diameter. The belt tensioner 52 uses the spring 54 so that the tension on the belt A by the belt tensioner 52 changes in accordance with the change in the pulley pitch diameter.
It is designed to rotate against the spring force of.
また、一般ベルトＢ側のベルトテンショナ５３は、スプ
リング５５、デープル５６を介して操作レバー５７に連
係され、該操作レバー５７の操作によって一般ベルトＢ
に強く押し付けられたＰＴＯ軸３３の駆動位置Ｐ１と、
一般ベルトＢを強く押し付けないＰＴＯ軸３３の非駆動
位置Ｐ２とを取るようになっている。Further, the belt tensioner 53 on the general belt B side is linked to an operating lever 57 via a spring 55 and a lap 56, and when the operating lever 57 is operated, the belt tensioner 53 on the general belt B side is
The driving position P1 of the PTO shaft 33 is strongly pressed against the
The non-driving position P2 of the PTO shaft 33 is set so that the general belt B is not strongly pressed.
従動側プーリ３５は、複数の中空孔３５ａが介設された
円板状の板状部３５ｂと、その外側に取付けられたプー
リ部３５ｃと、上記板状部３５ｂの内側に取付けられた
筒状部３５ｄとからなり、該筒状部３５ｄが第２回転軸
１８に外嵌されている。The driven pulley 35 includes a disc-shaped plate part 35b with a plurality of hollow holes 35a interposed therein, a pulley part 35c attached to the outside of the disc-shaped plate part 35b, and a cylindrical part attached to the inside of the plate part 35b. The cylindrical portion 35d is fitted onto the second rotating shaft 18.
また、両回転軸１７．１８の間にクラッチ手段４１が介
設されている。クラッチ手段４１は、具体的には、第８
図に示すように、第１回転軸１７に第２回転軸１８の外
形に略等しい外径を有する大径部１７ａが形成され、該
大径部１７ａにスプライン１７ｂが形成され、一方、第
２回転軸１８の大径部１７ａ側端部にスプライン１８ａ
が形成され、該両スプライン１７ｂ、１８ａに係脱可能
に係合するクラッチ部材４２とが設けられてなる。Furthermore, a clutch means 41 is interposed between both rotating shafts 17 and 18. Specifically, the clutch means 41
As shown in the figure, a large diameter portion 17a having an outer diameter approximately equal to the outer diameter of the second rotation shaft 18 is formed on the first rotation shaft 17, and a spline 17b is formed on the large diameter portion 17a. A spline 18a is provided at the end of the large diameter portion 17a of the rotating shaft 18.
, and a clutch member 42 that removably engages with both splines 17b and 18a is provided.
クラッチ部材４２は、操作部材４３によって回転軸方向
に移動可能となっている。The clutch member 42 is movable in the direction of the rotation axis by an operating member 43.
したがって、車輪１２．１２の駆動力は、エンジン１か
ら、可変プーリ３１、ベルトＡ３プーリ３５、第２回転
軸１８及び変速機構（図示せず）を通じて伝達される。Therefore, the driving force for the wheels 12.12 is transmitted from the engine 1 through the variable pulley 31, the belt A3 pulley 35, the second rotating shaft 18, and the transmission mechanism (not shown).
一方、ＰＴＯ軸３３の駆動力は、エンジン１から、プー
リ３３、ベルトＢ１プーリ３４及び第１回転軸１７を通
じて、上記車輪１２．１２の駆動力の伝達系とは別の伝
達系統で、４部機器を駆動するための駆動力が、第１回
転軸１７の一部であるＰＴＯ軸に伝達される。これによ
って、プーリ３３は、一定のピッチ径を有するので、可
変プーリ３１のピッチ径の変化により車輪１２，１２の
車速が変化しても、ＰＴＯ軸（第１回転軸１７）は一定
回転速度で回転することになる。On the other hand, the driving force of the PTO shaft 33 is transmitted from the engine 1 through the pulley 33, the belt B1 pulley 34, and the first rotating shaft 17 to a transmission system different from the transmission system for the driving force of the wheels 12.12. A driving force for driving the equipment is transmitted to a PTO shaft that is a part of the first rotating shaft 17. As a result, the pulley 33 has a constant pitch diameter, so even if the vehicle speed of the wheels 12, 12 changes due to a change in the pitch diameter of the variable pulley 31, the PTO shaft (first rotating shaft 17) remains at a constant rotation speed. It will rotate.
また、第１回転軸１７及び第２回転軸１８１．８が連結
された状態では、ベルトテンショナ５２を押し付はベル
トテンショナ５３の押し付けを解除すると、両回転軸１
．７．１８は可変プーリ３１、ベルトＡ及びプーリ３５
からなる可変プーリ機構を介してエンジン１によって回
転せしめられ、可変プーリ３１によって設定されるプー
リ比によって変速駆動される。また、ベルトテンショナ
５２を押し付はベルトテンショナ５３の押し付けを解除
すると、両回転軸１７．１８はプーリ３３、ベルトＢ及
びプーリ３４からなる伝動機構を介してエンジン１によ
って回転せしめられ、一定の回転速度でも−）で駆動さ
れる。In addition, when the first rotating shaft 17 and the second rotating shaft 181.8 are connected, when the belt tensioner 52 is pressed and the belt tensioner 53 is released, both the rotating shafts 181.8
．． 7.18 is variable pulley 31, belt A and pulley 35
It is rotated by the engine 1 through a variable pulley mechanism consisting of a variable pulley 31, and is driven at variable speeds according to a pulley ratio set by a variable pulley 31. Further, when the belt tensioner 52 is pressed and the belt tensioner 53 is released, both rotating shafts 17 and 18 are rotated by the engine 1 through a transmission mechanism consisting of the pulley 33, belt B, and pulley 34, and are rotated at a constant rotation speed. It is also driven at a speed of −).
このように、クラッチ手段４１とベルトテンショナ５２
．５３によって、■第１回転軸１７は変速駆動され、第
２回転軸１８が定速駆動されるモード、■両回転軸１．
７．１８ともに定速駆動されるモード、■両回転軸１７
．１８とも変速駆動されるモードとを取り得ることにな
る。In this way, the clutch means 41 and the belt tensioner 52
．． 53, (1) a mode in which the first rotating shaft 17 is driven at variable speed and a mode in which the second rotating shaft 18 is driven at a constant speed; (2) both rotating shafts 1.
7.18 Mode where both are driven at constant speed, ■Both rotating shafts 17
．． 18 can also be in a variable speed drive mode.
（発明の効果）
本発明は上記のように構成したから、第１回転軸の外側
に第２回転軸が位置し、スペースを取らず、第１回転軸
で、ＰＴＯ軸又は駆動軸の駆動力のうちの一方を、第２
回転軸で他方を伝達することができ、Ｐ Ｔ Ｏｌｄ＋
を駆動軸とは独立に回転させることができる。それに加
えて、クラッチ手段とベルトテンショナによって、必要
に応じて、選択的に、■第１または第２回転軸の一方が
変速駆動され、他方が定速駆動されるモー ド、■両回
転軸ともに定速駆動されるモード、■両回転軸変速駆動
される３つのモードとを取り得る。(Effects of the Invention) Since the present invention is configured as described above, the second rotating shaft is located outside the first rotating shaft, and the driving force of the PTO shaft or the drive shaft is transmitted from the first rotating shaft without taking up space. one of them, the second
The other can be transmitted by the rotating shaft, P T Old+
can be rotated independently of the drive shaft. In addition, the clutch means and the belt tensioner can selectively operate, as necessary, ■a mode in which one of the first or second rotating shafts is driven at a variable speed and the other is driven at a constant speed, ■a mode in which both rotating shafts are driven at a constant speed; It can take three modes: constant speed drive mode, and (2) both rotating shaft variable speed drive modes.
第１図乃至第８図は本発明の実施例を示１７、第１図は
ベルト式無段変速装置のスケルトン図である。第２図は
他の実施例のベルト式無段変速装置のスケルトン図、第
３図乃至第８図は第２図に示す実施例の具体的構成を示
し、第３図はベルト式無段変速装置の要部断面図、第４
図は変速駆動系の側面図、第５図はＰＴＯ軸駆動系の側
面図、第６図及び第７図は可変プーリの一部断面図及び
側面図、第８図は上半分に連結状態、下半分に連結解除
状態を示すクラッチ手段の説明図である。
第９図は一般のティラー（歩行型移動９機）の側面図で
ある。
１・・・・・・エンジン
２・・・・・・出力軸
３．３０・・・・・・可変プーリ
１４・・・・・・ＰＴＯ軸（出力取出軸）１６．３４・
・・・・・プーリ
１７・・・・・・第１回転軸
１８・・・・・・第２回転軸
２１．２２・・・・・・ベルトテンショナ２９・・・・
・・クラッチ手段
５２、 ５３・・・・・・ベルトテンショナＡ、 Ｂ・
・・・・・ベルト
はρ１ｚ″６
第２図
第３０
第５図
第４０
る６図
晃７図
５２1 to 8 show an embodiment of the present invention, and FIG. 1 is a skeleton diagram of a belt type continuously variable transmission. FIG. 2 is a skeleton diagram of a belt-type continuously variable transmission according to another embodiment, FIGS. 3 to 8 show the specific configuration of the embodiment shown in FIG. 2, and FIG. Cross-sectional view of main parts of the device, No. 4
Figure 5 is a side view of the variable speed drive system, Figure 5 is a side view of the PTO shaft drive system, Figures 6 and 7 are a partial sectional view and side view of the variable pulley, Figure 8 is the top half connected, It is an explanatory view of the clutch means showing a disengaged state in the lower half. FIG. 9 is a side view of a general tiller (nine walking-type mobile units). 1... Engine 2... Output shaft 3.30... Variable pulley 14... PTO shaft (output extraction shaft) 16.34.
...Pulley 17...First rotating shaft 18...Second rotating shaft 21.22...Belt tensioner 29...
...Clutch means 52, 53...Belt tensioners A, B.
...Belt is ρ1z''6 Fig. 2 Fig. 30 Fig. 5 Fig. 40 Fig. 6 Fig. 7 Fig. 52
Claims (1)
速ベルトが巻回されて可変プーリ機構が構成される一方
、上記可変プーリ機構の可変プーリに取付けられた駆動
側のプーリと別の従動側のプーリとの間に一般ベルトが
巻回されて伝動機構が構成され、上記変速ベルト及び一
般ベルトにそれぞれベルトテンショナが適用され、第１
回転軸の外側に円筒状の第２回転軸が回転可能に外嵌さ
れて二重軸構造が形成され、上記第１及び第２回転軸の
間にクラッチ手段が介設され、上記第１または第２回転
軸の一方に可変プーリ機構の従動側のプーリが、他方に
伝動機構の従動側のプーリがそれぞれ取付けられ、さら
に、上記第１または第２回転軸の他方が出力取出軸に連
係されていることを特徴とするベルト式無段変速装置。(1) A variable speed belt is wound between the variable pulley on the drive side and the pulley on the driven side to form a variable pulley mechanism, but it is separate from the pulley on the drive side attached to the variable pulley of the variable pulley mechanism. A general belt is wound between the transmission belt and the driven pulley to constitute a transmission mechanism, and a belt tensioner is applied to each of the speed change belt and the general belt.
A cylindrical second rotating shaft is rotatably fitted outside the rotating shaft to form a double shaft structure, a clutch means is interposed between the first and second rotating shafts, and a clutch means is interposed between the first and second rotating shafts. A driven pulley of a variable pulley mechanism is attached to one of the second rotating shafts, a driven pulley of a transmission mechanism is attached to the other, and the other of the first or second rotating shafts is linked to an output output shaft. A belt-type continuously variable transmission device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1139472A JPH0730823B2 (en) | 1989-05-31 | 1989-05-31 | Belt type continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1139472A JPH0730823B2 (en) | 1989-05-31 | 1989-05-31 | Belt type continuously variable transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH034064A true JPH034064A (en) | 1991-01-10 |
| JPH0730823B2 JPH0730823B2 (en) | 1995-04-10 |
Family
ID=15246041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1139472A Expired - Fee Related JPH0730823B2 (en) | 1989-05-31 | 1989-05-31 | Belt type continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0730823B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4963574A (en) * | 1987-02-24 | 1990-10-16 | Ciba-Geigy Corporation | N-cyanoisothiourea compounds useful in pest control |
| US6715379B2 (en) * | 2001-04-18 | 2004-04-06 | Kawasaki Jukogyo Kabushiki Kaisha | Power transmission device of all terrain vehicle and all terrain vehicle |
| US6902502B2 (en) * | 2001-09-06 | 2005-06-07 | Daihatsu Motor Co., Ltd. | Continuously variable transmission |
| CN105757192A (en) * | 2015-05-27 | 2016-07-13 | 合肥智光应用技术研究所 | Epicyclic gear train speed adjusting device having synchronous belt structure |
| RU200450U1 (en) * | 2020-07-27 | 2020-10-26 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Национальный исследовательский Мордовский государственный университет им. Н.П. Огарёва» | Motoblock with a controlled power take-off shaft |
-
1989
- 1989-05-31 JP JP1139472A patent/JPH0730823B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4963574A (en) * | 1987-02-24 | 1990-10-16 | Ciba-Geigy Corporation | N-cyanoisothiourea compounds useful in pest control |
| US6715379B2 (en) * | 2001-04-18 | 2004-04-06 | Kawasaki Jukogyo Kabushiki Kaisha | Power transmission device of all terrain vehicle and all terrain vehicle |
| US6902502B2 (en) * | 2001-09-06 | 2005-06-07 | Daihatsu Motor Co., Ltd. | Continuously variable transmission |
| CN100394072C (en) * | 2001-09-06 | 2008-06-11 | 大发工业株式会社 | Continuously variable transmission |
| CN105757192A (en) * | 2015-05-27 | 2016-07-13 | 合肥智光应用技术研究所 | Epicyclic gear train speed adjusting device having synchronous belt structure |
| RU200450U1 (en) * | 2020-07-27 | 2020-10-26 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Национальный исследовательский Мордовский государственный университет им. Н.П. Огарёва» | Motoblock with a controlled power take-off shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0730823B2 (en) | 1995-04-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |