JPH0730823B2 - Belt type continuously variable transmission - Google Patents
Belt type continuously variable transmissionInfo
- Publication number
- JPH0730823B2 JPH0730823B2 JP1139472A JP13947289A JPH0730823B2 JP H0730823 B2 JPH0730823 B2 JP H0730823B2 JP 1139472 A JP1139472 A JP 1139472A JP 13947289 A JP13947289 A JP 13947289A JP H0730823 B2 JPH0730823 B2 JP H0730823B2
- Authority
- JP
- Japan
- Prior art keywords
- belt
- pulley
- shaft
- variable
- 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.)
- Expired - Fee Related
Links
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。Description: TECHNICAL FIELD The present invention relates to a belt type continuously variable transmission having an output take-out 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、テイラーや管理機などの農業機械において、ベ
ルト式変速装置が用いられている。(Prior Art) Conventionally, as described in, for example, Japanese Utility Model Laid-Open No. 63-171752, a belt-type transmission is used in agricultural machines such as Taylor and management machines.
また、そのようなベルト式変速装置において、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。Further, in such a belt type transmission, there is also known one provided with a PTO shaft for taking out an output and driving an external device.
（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。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、変速装置自体が
大型化する。(Problems 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 rotation speed of the PTO shaft also changes, Can not handle various kinds of work. Therefore, it is conceivable to provide a double transmission mechanism, but if this is done, two transmission mechanisms will be arranged in parallel, and the transmission itself will become large.
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 the above circumstances, and an object thereof is to provide a belt type continuously variable transmission that can rotate a PTO shaft in various modes without increasing the size.
（課題を解決するための手段） 本発明は、車輪等を駆動する第１回転軸を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) In the present invention, a first rotary shaft that drives a wheel or the like is configured with a second rotary shaft that drives a PTO shaft by using a double shaft structure, and The clutch means is interposed between them.
具体的には、駆動側の可変プーリと従動側のプーリとの
間に変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第１及び第２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又は第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プーリがそれぞれ取
付けられ、上記第１又は第２回転軸の一方が駆動軸に連
係され、他方が出力取出軸に連係され、さらに、上記第
１ベルトテンショナは、第１操作手段に連係されて変速
ベルトを押し付ける第１位置と変速ベルトを押し付けな
い第２位置とをとるように構成される一方、第２ベルト
テンショナは、第２操作手段に連係されて一般ベルトを
押し付ける第１位置と一般ベルトを押し付けない第２位
置とをとるように構成されている。Specifically, the variable pulley mechanism is configured by winding the speed change belt between the variable pulley on the driving side and the pulley on the driven side, while the pulley on the driving side attached to the variable pulley of the variable pulley mechanism. A general belt is wound between the driven belt and another driven pulley to form a transmission mechanism, and the first and second belt tensioners are applied to the speed change belt and the general belt, respectively, and the first belt and the second belt tensioner are provided outside the first rotation shaft. A cylindrical second rotating shaft is rotatably fitted to form a double shaft structure, and clutch means is interposed between the first and second rotating shafts. The driven pulley of the variable pulley mechanism is mounted on one side, and the driven pulley of the transmission mechanism is mounted on the other side. One of the first and second rotating shafts is linked to the drive shaft, and the other is linked to the output take-out shaft. And the first belt tensioner described above. Is configured to take a first position in which the speed change belt is pressed against the first operation means and a second position in which the speed change belt is not pressed, while the second belt tensioner is connected to the second operation means. It is configured to have a first position where the general belt is pressed and a second position where the general belt is not pressed.
（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。(Operation) The cylindrical second rotary shaft is located outside the first rotary shaft, does not occupy a space, and is in the disengaged state of the clutch means. Among the driving force of the PTO shaft or the drive shaft at the first rotary shaft. One is the second
The other of the driving force of the PTO shaft or the drive shaft is transmitted by the rotating shaft.
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、第２ベルトテンショナによる押圧解除により、
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、第１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 pressure is released by the second belt tensioner,
The first and second rotary shafts are rotated in a variable speed manner via a variable pulley mechanism including a speed change belt. Further, when the pressure is released by the first belt tensioner, the first and second rotating shafts are rotated at a constant speed via the transmission mechanism by the 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、作業機としてテイラー102に適用される。Embodiments Embodiments of the present invention will be described in detail below with reference to the drawings. The belt type transmission 101 according to the present invention is applied to a tailor 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。そして、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 idle bearing 6 is disposed between the sheaves 4 and 5. A pulley portion 7 for the general belt B is formed on the upper end portion of the fixed sheave 4.
11は変速ユニットで、ユニットケース11aの内部に車輪1
2,12を駆動する変速機構13と、PTO軸14を回転する回転
機構15とが配設されている。11 is a speed change unit, and the wheels 1
A transmission mechanism 13 that drives the motors 2 and 12 and a rotation mechanism 15 that rotates the PTO shaft 14 are provided.
上記可変プーリ３の従動側のプーリ16は第１回転軸17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
ギア17A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
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 pulley 16 on the driven side of the variable pulley 3 is attached to a first rotating shaft 17, and a gear 17A linked to the speed change mechanism 13 is attached to the first rotating shaft 17. A second rotary shaft 18 is rotatably supported on the outside of the first rotary shaft 17 via bearings 8 and 8, and a driven pulley 19 of the pulley portion 7 is attached to one end of the second rotary shaft 18. A gear 20 linked to the rotation mechanism 15 is attached to the other end.
また、上記変速ベルトＡ及び一般ベルトＢに対しては、
第１及び第２ベルトテンショナ21,22がそれぞれ配設さ
れている。そして、第１ベルトテンショナ21は、可変プ
ーリ３ののプーリピッチ径の変化に追従して、変速ベル
トＡの張力を変化させるようになっている。また、第２
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TPO軸14の駆動位置
と、一般ベルトＢを強く押し付けないPTO軸14の非駆動
位置とをとるようになっている。Further, for the speed change belt A and the general belt B,
First and second belt tensioners 21, 22 are provided respectively. The first belt tensioner 21 follows the change in the pulley pitch diameter of the variable pulley 3 and changes the tension of the speed change belt A. Also, the second
The belt tensioner 22 is linked to an operation system (not shown),
The driving position of the TPO shaft 14 that is strongly pressed against the general belt B and the non-driving position of the PTO shaft 14 that is not strongly pressed against the general belt B are set.
23,24,25,26はそれぞれ軸受で、ユニットケース11aに取
付けられ、第２回転軸18、第１回転軸17、PTO軸14及び
変速機構13の軸13aを回転可能に支承している。Bearings 23, 24, 25, and 26 are mounted on the unit case 11a, and rotatably support the second rotary shaft 18, the first rotary shaft 17, the PTO shaft 14, and the shaft 13a of the speed change mechanism 13.
29はクラッチ手段で、第１回転軸17と第２回転軸18との
連結、連結解除を行うものである。29 is a clutch means for connecting and disconnecting the first rotating shaft 17 and the second rotating shaft 18.
上記のように構成すれば、ウラッチ手段29の連結解除状
態では、エンジン１から、可変プーリ３、変速ベルト
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、一般ベルト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1
2,12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。According to the above-described structure, in the unlatched state of the latching means 29, the driving force of the wheels 12, 12 is transmitted from the engine 1 through the variable pulley 3, the speed change belt A, the pulley 16, the first rotating shaft 17 and the speed change mechanism 13. Transmitted. On the other hand, from the engine 1, the variable pulley 3, the pulley portion 7, the general belt B, the pulley
The wheel 1 through the second rotary shaft 18 and the transmission mechanism 15
A transmission system different from the transmission system of the driving forces of 2 and 12 transmits the driving force for driving the external device 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, the wheels 12, 12,
Even if the vehicle speed 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、第１ベルトテンショナ21を押し付け第２ベルトテ
ンショナ22の押し付けを解除すると、両回転軸17,18は
可変プーリ３、変速ベルト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によって駆動せしめら
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。Further, when the first belt tensioner 21 is pressed and the second belt tensioner 22 is released while the first rotating shaft 17 and the second rotating shaft 18 are connected, both rotating shafts 17 and 18 are connected to the variable pulley 3 and the speed change gear. It is driven by the engine 1 via a variable pulley mechanism including a belt A and a pulley 16, and is driven at a variable speed according to a pulley ratio set by the variable pulley 3.
また、逆に第２ベルトテンショナ22を押し付け第１ベル
トテンショナ21の押し付けを解除すると、両回転軸17,1
8は、可変プーリ３、プーリ部７、一般ベルト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。On the contrary, when the second belt tensioner 22 is pressed and the first belt tensioner 21 is released, both rotary shafts 17,1
The engine 8 is rotated by the engine 1 via a transmission mechanism including a variable pulley 3, a pulley portion 7, a general belt B 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
れるモードとをとり得ることになる。In this way, the clutch means 29 and the belt tensioners 21, 22
The first rotary shaft 17 is driven in a variable speed by the
There can be a mode in which 18 is driven at a constant speed, a mode in which both rotary shafts 17 and 18 are driven at a constant speed, and a mode in which both rotary shafts 17 and 18 are driven at a variable speed.
上記実施例では、固定シーブ４の一部にプーリ部７を設
け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にPTO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の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 portion 7 is provided on a part of the fixed sheave 4, but as shown in FIG. 2, the output shaft 2 to which the fixed sheave 31 of the variable pulley 30 is attached is for rotating the PTO shaft. The pulley 32 is attached, and the pulley 34 on the driven side of the first rotating shaft 17 which is partly the PTO shaft 33 and the pulley 35 on the driven side of the driving side of the wheels 12, 12 are attached to the second rotating shaft 18, respectively. You may
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,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31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、該案内ピン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36の筒状部41との間
にはシール部材45,45が介装されている。As shown in FIGS. 6 and 7, the variable pulley 30 on the drive side has a sheave portion 37, 38 having fixed sheaves 31 and movable sheaves 36, each having a sheave surface 37a, 38a serving as a pulley surface.
The tubular portion 40 of the fixed sheave 31 is fitted and fixed to the pulley shaft 39, while the tubular portion 41 of the movable sheave 36 is connected to the pulley shaft 39. The pulley shaft 3 is provided with an engaging groove 44 that engages with a guide pin 43 that projects radially outward from a tubular member 42 fixed to 39. It is possible to move only in the axial direction. Sealing members 45, 45 are interposed between the tubular member 42 and the tubular portion 41 of the movable sheave 36.
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 portion of the tubular member 42, and a bearing 47 (bearing is provided between the end surface of the tubular member 42 and the flange portion 46a of the mounting member 46 on the outer periphery of the mounting member 46. ) Is provided. A roller base 48 is attached to the bearing 47, and a roller 49 is rotatably supported on the roller base 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。
そして、カム部材51に操作系と連係される突出部51a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、第１ベルトテン
ショナ52による変速ベルト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 tubular portion 41 of the movable sheave 36, and a cam member 51 is attached to the outside of the bearing 50.
The cam member 51 is provided with a protrusion 51a that is linked to the operation system, and the cam member 51 is rotated to rotate the cam member 51.
The cam surface of is engaged with the roller 49 and moved in the axial direction to change the pulley pitch diameter.
Following the change of the pulley pitch diameter, the tension of the speed change belt A by the first belt tensioner 52 also changes,
The belt tensioner 52 is adapted to rotate against the spring force of the spring 54.
また、一般ベルトＢ側の第２ベルトテンショナ53は、ス
プリング55、ケーブル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。The second belt tensioner 53 on the side of the general belt B is linked to the operation lever 57 via the spring 55 and the cable 56, and the drive position of the PTO shaft 33 that is strongly pressed against the general belt B by the operation of the operation lever 57. P 1 and general belt B
It is designed to take the non-driving position P 2 of the PTO shaft 33 that does not press strongly.
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 disk-shaped plate-shaped portion 35b having a plurality of hollow holes 35a and a pulley portion 35c attached to the outside thereof.
And a tubular portion 35d attached inside the plate-shaped portion 35b, and the tubular portion 35d is externally fitted to the second rotary 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17
b,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。Further, a clutch means 41 is provided between the rotary shafts 17 and 18. Specifically, as shown in FIG. 8, in the clutch means 41, a large diameter portion 17a having an outer diameter substantially equal to the outer shape of the second rotation shaft 18 is formed on the first rotation shaft 17, and the large diameter portion 17a is formed. The spline 17b is formed on 17a, while the large diameter portion 17a of the second rotary shaft 18 is formed.
A spline 18a is formed at the side end, and both splines 17a
A clutch member (42) that is releasably engaged with the b (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 rotation axis direction by the operation member 43.
従って、車輪12,12の駆動力は、エンジン１から、可変
プーリ30、ベルトＡ、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 of the wheels 12, 12 is transmitted from the engine 1 through the variable pulley 30, the belt A, the pulley 35, the second rotating shaft 18, and the speed change mechanism (not shown).
一方、PTO軸33の駆動力は、エンジン１から、プーリ3
2、ベルトＢ、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、外
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33に伝達される。これによって、プーリ32
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
33（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 from the engine 1 to the pulley 3
2. Through the belt B, the pulley 34, and the first rotating shaft 17, the driving force for driving the external device is transmitted through a transmission system different from the driving force transmitting system of the wheels 12, 12 as described above. Is transmitted to the PTO shaft 33 which is a part of. This allows the pulley 32
Has a constant pitch diameter, 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
The 33 (first rotation shaft 17) 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、第１ベルトテンショナ52を押し付け第２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
可変プーリ30、変速ベルト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、第２ベルトテンショナ53を押し
付け第１ベルトテンショナ52の押し付けを解除すると、
両回転軸17,18はプーリ32、一般ベルト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って駆動される。Further, when the first belt tensioner 52 is pressed and the second belt tensioner 53 is released while the first rotary shaft 17 and the second rotary shaft 18 are connected, both rotary shafts 17 and 18 are connected to the variable pulley 30 and the speed change gear. It is rotated by the engine 1 via a variable pulley mechanism including a belt A and a pulley 35, and is driven at a variable speed by a pulley ratio set by a variable pulley 31. When the second belt tensioner 53 is pressed and the first belt tensioner 52 is released,
Both rotary shafts 17 and 18 are pulley 32, general belt B and pulley 34.
It is rotated by the engine 1 via a transmission mechanism consisting of and is driven at a constant rotation speed.
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は定速駆動され、第２回転軸
18が変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 41 and the belt tensioners 52,53
The first rotary shaft 17 is driven at a constant speed by the
It is possible to adopt a mode in which 18 is driven at variable speed, a mode in which both rotary shafts 17 and 18 are driven at constant speed, and a mode in which both rotary shafts 17 and 18 are driven at variable speed.
（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、PTO軸を駆動軸とは
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、ベルトテンショナ及び操作手段によって、必要
に応じて、選択的に、第１又は第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、両回転軸ともに変速駆
動される３つのモードとをとり得る。(Effect of the invention) Since the present invention is configured as described above, the second rotary shaft is located outside the first rotary shaft, does not take up space, and the first rotary shaft can drive the driving force of the PTO shaft or the drive shaft. One of them can be transmitted to the other by the second rotation shaft, and the PTO shaft can be rotated independently of the drive shaft. In addition, a mode in which one of the first and second rotating shafts is selectively driven at a variable speed and the other is driven at a constant speed by both the clutch device, the belt tensioner, and the operating device. There can be a constant speed driving mode and three modes in which both rotary shafts are speed-change driven.
第１図乃至第８図は本発明の実施例を示し、第１図はベ
ルト式無段変速装置のスケルトン図、第２図は他の実施
例のベルト式無段変速位置のスケルトン図である。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図は一般のテイラー（歩行型移動農機）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1 to 8 show an embodiment of the present invention, FIG. 1 is a skeleton diagram of a belt type continuously variable transmission, and FIG. 2 is a skeleton diagram of a belt type continuously variable transmission position of another embodiment. . Third
FIG. 8 to FIG. 8 show a concrete structure of the embodiment shown in FIG. 2, and FIG. 3 is a sectional view of a main part of a belt type continuously variable transmission, and FIG.
The figure is a side view of the variable speed drive system, Fig. 5 is a side view of the PTO shaft drive system, Figs. 6 and 7 are partial sectional views and side views of the variable pulley, and Fig. 8 is a state in which the upper half is connected, It is explanatory drawing of a clutch means which shows a connection releasing state in a lower half. FIG. 9 is a side view of a general Taylor (walking type mobile agricultural machine). 1 …… Engine 2 …… Output shaft 3,30 …… Variable pulley 14 …… PTO shaft (output take-out shaft) 16,34 …… Pulley 17 …… First rotary shaft 18 …… Second rotary shaft 21,22… … Belt tensioner 29 …… Clutch means 52,53 …… Belt tensioner A, B …… Belt
Claims (1)
間に変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第１及び第２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又は第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プーリがそれぞれ取
付けられ、上記第１又は第２回転軸の一方が駆動軸に連
係され、他方が出力取出軸に連係され、さらに、上記第
１ベルトテンショナは、第１操作手段に連係されて変速
ベルトを押し付ける第１位置と変速ベルトを押し付けな
い第２位置とをとるように構成される一方、第２ベルト
テンショナは、第２操作手段に連係されて一般ベルトを
押し付ける第１位置と一般ベルトを押し付けない第２位
置とをとるように構成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 pulley mechanism is constructed by winding a speed change belt between a variable pulley on a driving side and a pulley on a driven side, and a pulley on a driving side attached to a variable pulley of the variable pulley mechanism. A general belt is wound between the driven belt and another driven pulley to form a transmission mechanism, and the first and second belt tensioners are applied to the speed change belt and the general belt, respectively, and the first belt and the second belt tensioner are provided outside the first rotation shaft. A cylindrical second rotating shaft is rotatably fitted to form a double shaft structure, and clutch means is interposed between the first and second rotating shafts. The driven pulley of the variable pulley mechanism is mounted on one side, and the driven pulley of the transmission mechanism is mounted on the other side. One of the first and second rotating shafts is linked to the drive shaft, and the other is linked to the output take-out shaft. And the first belt tensioner described above. Is configured to take a first position in which the speed change belt is pressed against the first operation means and a second position in which the speed change belt is not pressed, while the second belt tensioner is connected to the second operation means. A belt type continuously variable transmission characterized in that it is configured to have a first position where a general belt is pressed and a second position where a general belt is not pressed.
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 JPH034064A (en) | 1991-01-10 |
| JPH0730823B2 true 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) |
Families Citing this family (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 |
| JP3482400B2 (en) * | 2001-04-18 | 2003-12-22 | 川崎重工業株式会社 | Power transmission device for off-road vehicles |
| US6902502B2 (en) * | 2001-09-06 | 2005-06-07 | Daihatsu Motor Co., Ltd. | Continuously variable transmission |
| CN105757192B (en) * | 2015-05-27 | 2017-12-12 | 合肥智光应用技术研究所 | The cyclic train arrangements for speed regulation of synchronous band 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
Also Published As
| Publication number | Publication date |
|---|---|
| JPH034064A (en) | 1991-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |