JPS61256052A - Driven type continuously variable transmission - Google Patents
Driven type continuously variable transmissionInfo
- Publication number
- JPS61256052A JPS61256052A JP10009785A JP10009785A JPS61256052A JP S61256052 A JPS61256052 A JP S61256052A JP 10009785 A JP10009785 A JP 10009785A JP 10009785 A JP10009785 A JP 10009785A JP S61256052 A JPS61256052 A JP S61256052A
- Authority
- JP
- Japan
- Prior art keywords
- gear
- pulley
- shaft
- pulley piece
- movable pulley
- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
Description
【発明の詳細な説明】
上の
本発明は、駆動側の割プーリと従動側の割プーリとの間
にＶベルトを巻き掛け、駆動側割プーリと従動側割プー
リのＶ溝幅を変えて従動側割プーリの回転速度を変更す
るようにしたベルト式無段変速装置に関する。[Detailed Description of the Invention] The present invention described above wraps a V belt between a split pulley on the driving side and a split pulley on the driven side, and changes the V groove width of the split pulley on the driving side and the split pulley on the driven side. The present invention relates to a belt type continuously variable transmission that changes the rotational speed of a driven side split pulley.
亙工立且五
前記のベルト式無段変速装置は、駆動側割プーリと従動
側割ブーりとの内、一方の割プーリの可動プーリ片を固
定プーリ片側へ向けてバネで押圧し、他方の割プーリの
可動プーリ片を固定プーリ片に対して任意に接近離間移
動して変速操作を行うようにしている。The belt type continuously variable transmission device described above has a driving side split pulley and a driven side split pulley, and the movable pulley piece of one of the split pulleys is pressed by a spring toward one side of the fixed pulley, and the movable pulley piece of one of the split pulleys is The movable pulley piece of the split pulley is arbitrarily moved towards and away from the fixed pulley piece to perform a speed change operation.
この任意に動かす可動プーリ片の移動機構は、例えば、
実公昭５８−１００３８号公報に記載された固定カムと
回動カムとを利用するカム方式や、特公昭５７−３７７
８７号公報に記載された油圧力を利用した油圧方式が有
る。The movement mechanism of the movable pulley piece that can be moved arbitrarily is, for example,
A cam system using a fixed cam and a rotary cam described in Japanese Utility Model Publication No. 58-10038, and Japanese Patent Publication No. 57-377
There is a hydraulic system using hydraulic pressure described in Publication No. 87.
が ° しようとする。 占
前記のカム方式は、高馬力の駆動力を伝達するために固
定ブーり片に対して可動ブーり片を強いバネ圧で押圧し
ている場合には、回動カムを回動させる操作力を強くし
なければならな（、回動力ムの回動角度も大きくなり、
操作性が悪い欠点が有る。But ° try. In the above-mentioned cam system, when the movable boob piece is pressed against the fixed boob piece with strong spring pressure in order to transmit high horsepower driving force, the operating force to rotate the rotary cam is (The rotation angle of the rotation arm also increases,
It has the disadvantage of poor operability.
また・前記の油圧方式は、油圧ポンプ等の油圧発生装置
が必要で、可動プーリ片を移動させる油圧ピストンや油
圧シリンダー等を精密に製作しなければならなく、製作
コストが高くなる欠点が有る。In addition, the above-mentioned hydraulic system requires a hydraulic pressure generating device such as a hydraulic pump, and the hydraulic piston, hydraulic cylinder, etc. for moving the movable pulley piece must be precisely manufactured, which has the disadvantage of increasing manufacturing costs.
占を ° るための
そこで、本発明では、前記従来技術が持つ欠点をコンパ
クトな構造で解消すべく次の如（構成した。Therefore, the present invention is constructed as follows in order to solve the drawbacks of the above-mentioned conventional technology with a compact structure.
すなわち、駆動軸（１）に設けた駆動側割プーリ （２
）と従動軸（３）に設けた従動、側割プーリ（４）との
間に、Ｖベルト（５）を巻き掛け、駆動側割プーリ（２
）の可動プーリ片（６）を軸方向に強制摺動操作して従
動軸（３）の回転速度を変更するベルト式無段変速装置
において、前記駆動側割プーリ（２）の可動プーリ片（
６）を駆動軸（１）の回転力を利用したネジ機構（７）
で強制摺動すると共に、該ネジ機構（７）を駆動軸（１
）上に設けた。In other words, the drive side split pulley (2) provided on the drive shaft (1)
) and the driven side split pulley (4) provided on the driven shaft (3), wrap the V-belt (5) between the driven side split pulley (2) and drive side split pulley (2).
In a belt type continuously variable transmission device that changes the rotational speed of the driven shaft (3) by forcibly sliding the movable pulley piece (6) of the drive side split pulley (2) in the axial direction, the movable pulley piece (6) of the driving side split pulley (2)
6) is a screw mechanism (7) that uses the rotational force of the drive shaft (1).
At the same time, the screw mechanism (7) is forced to slide on the drive shaft (1).
) provided above.
生−一見
駆動側割プーリ（２）の可動プーリ片（６）は、駆動軸
（１）の回転力を利用したネジ機構（７）で、固定プー
リ片に対して接近離間し、それに伴って従動側割プーリ
（４）のＶ溝幅が変わり従動軸（３）の回転速度が変化
するのである。At first glance, the movable pulley piece (6) of the drive-side split pulley (2) moves toward and away from the fixed pulley piece using a screw mechanism (7) that utilizes the rotational force of the drive shaft (1), and accordingly The V-groove width of the driven side split pulley (4) changes, and the rotational speed of the driven shaft (3) changes.
盈−一見
前記の如く、駆動側割プーリ（２）の可動プーリ片（６
）の移動が駆動軸（１）の回転力を利用して行われるの
で、高馬力を伝達する場合においても変速操作力が非常
に軽くなり、また、油圧方式と比較して製作コストが安
くなる。- At first glance, as mentioned above, the movable pulley piece (6) of the drive side split pulley (2)
) is moved using the rotational force of the drive shaft (1), so the shifting operation force is extremely light even when transmitting high horsepower, and manufacturing costs are lower compared to hydraulic systems. .
さらに、前記ネジ機構（７）を駆動軸（１）上に設けて
いるので、変速装置全体の構成がコンパクトで狭いスペ
ース内へ設置することが可能となる。Furthermore, since the screw mechanism (7) is provided on the drive shaft (1), the overall structure of the transmission is compact and can be installed in a narrow space.
ス」Ｌ鮭
次に、本発明の一実施例を図面を参照しながら説明する
。Next, one embodiment of the present invention will be described with reference to the drawings.
実施例では、運搬車の動力伝達経路に、本発明ノヘルト
式無断変速装置を組み込んだもので・第２図に示す如く
、エンジン（８）の出力軸（９）に固着したプーリ（１
０）と、駆動側の割プーリ（２）を装着した駆動軸（１
）の軸端に固着したプーリ （１１） との間にベル）
（１２）を巻き掛けて動力伝達を行い、この駆動側割
プーリ（２）から、後輪のデフケース（図示省略）へ動
力を伝達する従動軸であるプロペラ軸（３）に装着した
従動側割プーリ（４）との間にＶベルト（５）を巻き掛
けて動力伝達を行うようにしている。なお、図示を省略
したが、プーリ（１０）とプーリ（１１）との間に巻き
掛けたベルト（１２）には、テンシランプーリの操作に
よって動力の断続を行うテンシランクラッチを設けてい
る。In this embodiment, the Nohert type continuously variable transmission device of the present invention is incorporated in the power transmission path of a transport vehicle.As shown in FIG.
0) and the drive shaft (1) with the drive-side split pulley (2) attached.
) is fixed to the shaft end of the pulley (11) and the bell)
The driven side split pulley (2) is attached to the propeller shaft (3), which is a driven shaft that transmits power from the drive side split pulley (2) to the rear wheel differential case (not shown). A V-belt (5) is wound around the pulley (4) to transmit power. Although not shown, the belt (12) wound between the pulley (10) and the pulley (11) is provided with a tensile run clutch that connects and disconnects power by operating the tensile pulley.
駆動軸（１）上に設けたギヤボックス（１３）内には、
後で詳しく説明する如く、駆動側割プーリ（２）の固定
プーリ（１４）に対して可動プーリ片（６）を軸方向へ
移動させる機構を組み込んでいる。Inside the gear box (13) provided on the drive shaft (1),
As will be explained in detail later, a mechanism for moving the movable pulley piece (6) in the axial direction with respect to the fixed pulley (14) of the drive side split pulley (2) is incorporated.
このギヤボックス（１３）から突出したクラッチ軸（１
５）は、クラッチアーム（１６）やロッド（１７）を介
して車体前部に設けた変速レバー（１８）と連結してい
る。The clutch shaft (1) protruding from this gear box (13)
5) is connected to a gear shift lever (18) provided at the front of the vehicle body via a clutch arm (16) and a rod (17).
従動軸であるプロペラ軸（３）に装着した割プーリ （
４）は１．固定プーリ片（１９）を軸上に固定し、可動
プーリ片（２０）を軸方向へ摺動可能に軸承し、この可
動プーリ片（２０）と軸上に固定したバネ受具（２１）
との間に圧縮バネ（２２）を介装し、可動プーリ片（２
０）を固定プーリ片（１９）側へ押圧している。The split pulley attached to the propeller shaft (3), which is the driven shaft (
4) is 1. A fixed pulley piece (19) is fixed on the shaft, a movable pulley piece (20) is supported so as to be slidable in the axial direction, and a spring receiver (21) is fixed on the movable pulley piece (20) and the shaft.
A compression spring (22) is interposed between the movable pulley piece (2
0) is pressed toward the fixed pulley piece (19).
（６０）は、ギヤボックス（１３）の回転を止めるため
の回り止めビンで、ギヤボックス（１３）が駆動軸（１
）の軸方向に沿って移動可能にしている。(60) is a rotation stopper for stopping the rotation of the gear box (13), and the gear box (13) is connected to the drive shaft (1).
) is movable along the axial direction.
次に、前記の駆動軸（１）上に設けたギャボツクス（１
３）内の構造を第１図で説明する。Next, the gabox (1) provided on the drive shaft (1)
The structure of 3) will be explained with reference to FIG.
駆動軸（１）は、両輪端側をラジアル軸受（２３）。The drive shaft (1) has radial bearings (23) at both wheel ends.
（２４）でフレーム（２５）に支持している。(24) is supported on the frame (25).
この駆動軸（１）は、全長の略半分の部分をスプライン
加工し、このスプライン加工部分（２６）にギヤ（２７
） 、可動プーリ片（６）、固定プーリ片（１４）を嵌
合し、スプライン加工部分（２６）以外の部分に、一部
に雄ネジ部（２日）を形成した雄ネジ部付ギヤ（２９）
を回動及び摺動可能に嵌合している。This drive shaft (1) is splined at approximately half of its entire length, and a gear (27) is attached to this splined portion (26).
), the movable pulley piece (6) and the fixed pulley piece (14) are fitted together, and a male threaded part (2) is formed in a part of the part other than the splined part (26). 29)
are fitted together so that they can rotate and slide.
また、該雄ネジ付ギヤ（２９）の雄ネジ部（２８）と螺
合する雌ネジ部（３０）を形成したボス（３１）を駆動
軸（１）に嵌合すると共に、該ボス（３１）はフレーム
（２５）に固定している。Further, a boss (31) formed with a female threaded portion (30) that screws with the male threaded portion (28) of the male threaded gear (29) is fitted onto the drive shaft (1), and the boss (31) is fitted onto the drive shaft (1). ) is fixed to the frame (25).
ギヤボックス（１３）内には、前記駆動軸（１）以外に
中間軸（３２）とクラッチ軸（３３）とをラジアル軸受
（３４） 、 （３５） 、 （３６） 、 （３７）
で支架している。Inside the gear box (13), in addition to the drive shaft (1), an intermediate shaft (32) and a clutch shaft (33) are provided with radial bearings (34), (35), (36), (37).
It is supported by
中間軸（３２）には、前記駆動軸（１）のギヤ（２７）
と噛み合うギヤ（３日）とクラッチ軸（３３）の正転ギ
ヤ（３９）と噛み合うギヤ（４０）とを固着している。The gear (27) of the drive shaft (1) is attached to the intermediate shaft (32).
The gear (3rd) that meshes with the forward rotation gear (39) of the clutch shaft (33) and the gear (40) that meshes with the normal rotation gear (39) are fixed.
また、クラッチ軸（３３）には、ブツシュ（４１） 、
（４２）で回動自在にした正転ギヤ（３９）と反転ギ
ヤ（４３） 、及び駆動軸（１）の雄ネジ部付ギヤ（２
９）と噛み合うギヤ（４４）をキー（５７）でクラッチ
軸（３３）と共に回転するように設けている。正転ギヤ
（３９） と反転ギヤ（４３）との対向部にはクラッチ
爪（４５） 、 （４６）を設け、これらの間でクラ
ッチ軸（３３）の六角軸部（４７）に嵌合したクラッチ
（４８）に適宜噛み合うようにしている。In addition, the clutch shaft (33) has a bush (41),
(42), the forward rotation gear (39) and the reverse rotation gear (43), which are freely rotatable, and the male threaded gear (2) of the drive shaft (1).
A gear (44) that meshes with the clutch shaft (33) is provided to rotate together with the clutch shaft (33) by means of a key (57). Clutch pawls (45) and (46) are provided at the opposing portions of the forward rotation gear (39) and the reverse gear (43), and clutch pawls (45) and (46) are provided between these pawls to fit into the hexagonal shaft portion (47) of the clutch shaft (33). It is designed to engage the clutch (48) appropriately.
なお、クラッチ（４日）は、ギヤボックス（工３）から
突出したクラッチ軸（１５）で軸方向へ摺動するように
している。The clutch (4th) is configured to slide in the axial direction with a clutch shaft (15) protruding from the gearbox (3).
次に、駆動軸（１）に装着した可動ブーり片（６）を作
動する状態を説明する。Next, the state in which the movable boom piece (6) attached to the drive shaft (1) is operated will be explained.
駆動軸（１）は一定方向に回転するのであるが、この駆
動軸（１）にスプライン嵌合した固定プーリ片（１４）
と可動プーリ片（６）、及びギヤ（２７）は共に回転し
ている。The drive shaft (1) rotates in a fixed direction, and a fixed pulley piece (14) is spline-fitted to the drive shaft (1).
, the movable pulley piece (6), and the gear (27) are rotating together.
ギヤ（２７）の一方のギヤ部（４４）と中間＃ （３２
）のギヤ（３Ｂ） 、 （４０）を介して噛み合った
正転ギヤ（３９）は、駆動軸（１）と同方向へ大きく減
速して回転し、他方のギヤ部（５ｏ）と噛み合った反転
ギヤ（４３）は、駆動軸（１）と反対方向へ小さく減速
して回転する。One gear part (44) of gear (27) and intermediate # (32
)'s gears (3B) and (40), the forward rotation gear (39) rotates in the same direction as the drive shaft (1) with a large deceleration, and the reverse rotation gear (39) that engages with the other gear part (5o) The gear (43) rotates in the opposite direction to the drive shaft (1) with a small speed reduction.
クラッチ（４日）を正転ギヤ（３９）あるいは反転ギヤ
（４３）と噛み合わせることによって、クラッチ軸（３
３）が回転してギヤ（４４）が回転し、このギヤ（４４
）と噛み合った雄ネジ付ギヤ（２９）が回転する。By engaging the clutch (4th) with the forward gear (39) or the reverse gear (43), the clutch shaft (3
3) rotates, the gear (44) rotates, and this gear (44) rotates.
) rotates.
雄ネジ付ギヤ（２９）が回転すると、この雄ネジ付ギヤ
（２９）の雄ネジ部（２８）がフレーム（２５）に固定
したボス（３１）の雌ネジ部（３ｏ）と螺合しているの
で、回転方向によって雄ネジ付ギヤ（２９）が軸方向へ
摺動する。すると、この雄ネジ付ギヤ（２９）とスラス
ト軸受（５１） 、ギヤ（２７）を介して軸方向への移
動が規制された可動プーリ片（６）が軸方向へ摺動する
ことになる。When the male threaded gear (29) rotates, the male threaded part (28) of this male threaded gear (29) is screwed into the female threaded part (3o) of the boss (31) fixed to the frame (25). Therefore, the male threaded gear (29) slides in the axial direction depending on the direction of rotation. Then, the movable pulley piece (6), whose movement in the axial direction is restricted, slides in the axial direction via the male threaded gear (29), the thrust bearing (51), and the gear (27).
駆動側割プーリ（２）と従動側割プーリ（４）との間に
巻き掛けた■ベルト（５）の駆動側割プーリ（２）へ働
く側圧は、固定プーリ片（６）側に働く分力が、ラジア
ル軸受（２４） 、座金（５２）を介して駆動軸（１）
の一方軸端に螺合したボルト（５３）に働き、可動ブー
り片（６）側に働く分力が、ギヤ（２７） 、スラスト
軸受（５１）、雄ネジ付ギヤ（２９） 、ボス（３１）
、フレーム（２５） 、ラジアル軸受（２３） 、プ
ーリ （７）、座金（５４）を介して駆動軸（１）の他
方軸端に螺合したボルト（５５）に働くので、駆動軸（
１）で、■ベルトの側圧全てを受けることになり、フレ
ーム（２５）やラジアル軸受（２４）をフレーム（２５
）に支持したブラケット（５６）に力が働くことが無い
。The side pressure acting on the driving side split pulley (2) of the belt (5) wrapped between the driving side split pulley (2) and the driven side split pulley (4) is equal to the side pressure acting on the fixed pulley piece (6). The force is transferred to the drive shaft (1) via the radial bearing (24) and washer (52).
The component force acting on the bolt (53) screwed onto one shaft end of the movable boom piece (6) is applied to the gear (27), the thrust bearing (51), the male threaded gear (29), and the boss ( 31)
, frame (25), radial bearing (23), pulley (7), and washer (54) on the bolt (55) screwed onto the other shaft end of the drive shaft (1).
1) receives all of the lateral pressure of the belt, and the frame (25) and radial bearing (24) are
) No force is applied to the bracket (56) supported by the bracket (56).
前述の如（、ギヤ（２７）のギヤ部（４９）と正転ギヤ
（３９）との間では大きく減速し、ギヤ部（５ｏ）と反
転ギヤ（４３） との間では小さく減速しているので、
可動ブーり片（６）が固定プーリ片（１４）へ近づく動
き、つまり増速時には早く、可動ブーリ片（６）が固定
プーリ片（１４）から離れる動き、つまり減速時には遅
く応答することになる。As mentioned above, there is a large deceleration between the gear part (49) of the gear (27) and the forward gear (39), and a small deceleration between the gear part (5o) and the reverse gear (43). So,
The movement of the movable pulley piece (6) approaching the fixed pulley piece (14), that is, the response is fast when speeding up, and the movement of the movable pulley piece (6) away from the fixed pulley piece (14), that is, the response is slow when decelerating. .
なお、ギヤ（２７）のギヤ部（５１）と正転ギヤ（３９
）とは、ギヤ（３８）とギヤ（４０）とを介して連動し
ているが、ギヤ部（５１）と反転ギヤ（３９）とをスプ
ロケットにしてチェ７を巻き掛ける構成にしてもよい。In addition, the gear part (51) of the gear (27) and the normal rotation gear (39)
) are interlocked via the gear (38) and the gear (40), but the gear part (51) and the reversing gear (39) may be used as sprockets to wrap around the chain 7.
図は、本発明の一実施例を示すもので、第１図は要部の
拡大展開図、第２図は平面図である。
（１）・・・駆動軸（２） ・・・駆動側割プーリ（３
） ・・・従動軸（４）・・・従動側割プーリ（５）・
・・Ｖベルト（６）・・・可動プーリ片（７）・・・ネ
ジ機構The drawings show an embodiment of the present invention; FIG. 1 is an enlarged developed view of the main parts, and FIG. 2 is a plan view. (1) ... Drive shaft (2) ... Drive side split pulley (3
) ... Driven shaft (4) ... Driven side split pulley (5)
・・V belt (6)・・Movable pulley piece (7)・・Screw mechanism
Claims (1)
３）に設けた駆動側割プーリ（４）との間に、Ｖベルト
（５）を巻き掛け、駆動側割プーリ（２）の可動プーリ
片（６）を軸方向に強制摺動操作して従動軸（３）の回
転速度を変更するベルト式無段変速装置において、前記
駆動側割プーリ（２）の可動プーリ片（６）を駆動軸（
１）の回転力を利用したネジ機構（７）で強制摺動する
と共に、該ネジ機構（７）を駆動軸（１）上に設けたこ
とを特長とするベルト式無段変速装置。The drive side split pulley (2) provided on the drive shaft (1) and the driven shaft (
A V-belt (5) is wound around the drive-side split pulley (4) provided in 3), and the movable pulley piece (6) of the drive-side split pulley (2) is forcibly slid in the axial direction. In a belt-type continuously variable transmission that changes the rotational speed of a driven shaft (3), the movable pulley piece (6) of the drive side split pulley (2) is connected to the drive shaft (
A belt-type continuously variable transmission device characterized in that forced sliding is performed by a screw mechanism (7) that utilizes the rotational force of 1), and that the screw mechanism (7) is provided on a drive shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10009785A JPS61256052A (en) | 1985-05-10 | 1985-05-10 | Driven type continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10009785A JPS61256052A (en) | 1985-05-10 | 1985-05-10 | Driven type continuously variable transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61256052A true JPS61256052A (en) | 1986-11-13 |
Family
ID=14264895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10009785A Pending JPS61256052A (en) | 1985-05-10 | 1985-05-10 | Driven type continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61256052A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016059371A (en) * | 2014-09-22 | 2016-04-25 | 井関農機株式会社 | Crop harvester |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51120362A (en) * | 1975-04-15 | 1976-10-21 | Sumikin Kozai Kogyo Kk | Transmittal winding device providing different speed ratio in clockwis e and anti-clockwise rotation |
| JPS6140544B2 (en) * | 1978-04-10 | 1986-09-10 | Kota Shimamoto |
-
1985
- 1985-05-10 JP JP10009785A patent/JPS61256052A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51120362A (en) * | 1975-04-15 | 1976-10-21 | Sumikin Kozai Kogyo Kk | Transmittal winding device providing different speed ratio in clockwis e and anti-clockwise rotation |
| JPS6140544B2 (en) * | 1978-04-10 | 1986-09-10 | Kota Shimamoto |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016059371A (en) * | 2014-09-22 | 2016-04-25 | 井関農機株式会社 | Crop harvester |
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