JPS6314226B2 - - Google Patents
Info
- Publication number
- JPS6314226B2 JPS6314226B2 JP60076059A JP7605985A JPS6314226B2 JP S6314226 B2 JPS6314226 B2 JP S6314226B2 JP 60076059 A JP60076059 A JP 60076059A JP 7605985 A JP7605985 A JP 7605985A JP S6314226 B2 JPS6314226 B2 JP S6314226B2
- Authority
- JP
- Japan
- Prior art keywords
- pulley
- transmission
- drive
- shaft
- belt
- 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
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
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
- F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
- F16H15/08—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B is a disc with a flat or approximately flat friction surface
- F16H15/10—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B is a disc with a flat or approximately flat friction surface in which the axes of the two members cross or intersect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D51/00—Motor vehicles characterised by the driver not being seated
- B62D51/004—Motor vehicles characterised by the driver not being seated characterised by the transmission
-
- 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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes or chains
- F16H2007/0889—Path of movement of the finally actuated member
- F16H2007/0893—Circular path
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Transmission Devices (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、原動軸の出力を２系統に分岐伝動
する動力伝達装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power transmission device that divides and transmits the output of a driving shaft into two systems.
上記動力伝達装置としては、一般に第４図に示
すように、原動軸４０自体を第１の分岐伝動軸に
するとともに、原動軸４０と第２の伝動軸４１と
を、伝動ベルト４２を介して連動連結するととも
に、これら両伝動系に対する主クラツチ４３を伝
動分岐部の上手に設けるのが一般的である。
As shown in FIG. 4, the above power transmission device generally uses the driving shaft 40 itself as a first branch transmission shaft, and connects the driving shaft 40 and the second transmission shaft 41 via a transmission belt 42. In addition to interlocking the two transmission systems, it is common to provide a main clutch 43 for both transmission systems at the upper end of the transmission branch.
この場合、動力分岐用のベルト伝動手段とは別
箇所に主クラツチを配設する関係上、伝動装置全
体が大型化する欠点があつた。
In this case, since the main clutch is disposed at a separate location from the belt transmission means for power branching, there is a drawback that the entire transmission device becomes larger.
本発明は、ベルト伝動手段を有効に利用するこ
とで、この種動力伝達装置の小型化を図ることを
目的とする。 An object of the present invention is to reduce the size of this type of power transmission device by effectively utilizing a belt transmission means.
上記目的を達成するために、本発明において
は、原動側プーリーを、原動軸と一体回転する割
プーリーと、これに対して遊転自在な割プーリー
とから構成し、その遊転側の割プーリーの一側に
分岐動力取出し用の駆動側回転伝動体を一体連設
するとともに、この駆動側回転伝動体の摩擦伝動
面に対向位置させて、回転周面を前記摩擦伝動面
７ａに接当させて摩擦により駆動される受動用の
回転伝動体を配設し、さらに、前記原動側プーリ
ーと、これとは別軸上の従動側プーリーとにわた
つてベルトを巻回して、前記原動軸の出力を、前
記駆動側回転伝動体に圧接する受動側の回転伝動
体と、従動側プーリーの出力軸とに分岐伝動すべ
く構成し、さらに、前記ベルトに作用するテンシ
ヨンクラツチ用のテンシヨンプーリーを設けて、
このテンシヨンプーリーにより、前記ベルトをあ
る程度以上弛めた状態で、このベルトによる伝動
並びに駆動側回転伝動体を介する伝動が断たれる
ような構成とした。
In order to achieve the above object, in the present invention, the driving side pulley is composed of a split pulley that rotates integrally with the driving shaft, and a split pulley that can rotate freely relative to the split pulley, and the split pulley on the idle side A drive-side rotary transmission body for taking out the branched power is integrally connected to one side, and is positioned opposite to the friction transmission surface of the drive-side rotation transmission body, so that the rotation peripheral surface is brought into contact with the friction transmission surface 7a. A passive rotary transmission body driven by friction is provided, and a belt is wound around the driving pulley and a driven pulley on a separate shaft to control the output of the driving shaft. is configured to be transmitted in a branched manner to a passive rotational transmission body that is in pressure contact with the drive side rotational transmission body and an output shaft of a driven side pulley, and further includes a tension pulley for a tension clutch that acts on the belt. Provided,
The tension pulley is configured such that when the belt is loosened to a certain extent, the transmission by the belt and the transmission via the drive-side rotating transmission body are cut off.
上記構成によると、テンシヨンクラツチを切る
ことで、ベルト伝動手段による伝動が解除され
て、出力軸への伝動が断たれるとともに、原動側
プーリーの遊転割プーリーへの伝動も解除されて
駆動側回転伝動体の動力伝達も断たれる。
According to the above configuration, by disengaging the tension clutch, the power transmission by the belt transmission means is released, the power transmission to the output shaft is cut off, and the power transmission to the free rotation split pulley of the drive side pulley is also released, thereby driving the drive side pulley. Power transmission from the side rotating transmission body is also cut off.
従つて、ベルト伝動手段のテンシヨンクラツチ
は出力軸の動力断続のみならず、それより伝動上
手に位置する駆動側回転伝動体への動力断続を行
う主クラツチとしても働くことになり、専用の主
クラツチを別途設ける必要なく、ベルト伝動手段
に本来備えられるテンシヨン構造を有効に利用し
てコンパクトに所望の動力分岐伝達を行えるよう
になつた。
Therefore, the tension clutch of the belt transmission means not only functions to connect and disconnect power to the output shaft, but also functions as a main clutch that connects and disconnects power to the drive-side rotating transmission body located upstream of the transmission. It is now possible to compactly perform desired power branch transmission by effectively utilizing the tension structure originally provided in the belt transmission means without the need to separately provide a clutch.
第３図は、本発明の動力伝達装置を備えた農用
管理機を示し、機体１の前部にエンジン２が搭載
され、中央部には走行車輪３を駆動するミツシヨ
ンケース４が設けられ、且つ後部にはロータリ耕
耘装置１０が装備されている。
FIG. 3 shows an agricultural management machine equipped with the power transmission device of the present invention, in which an engine 2 is mounted on the front part of the machine body 1, a transmission case 4 for driving running wheels 3 is provided in the center part, A rotary tiller 10 is also installed at the rear.
第２図及び第３図に示すように、前記エンジン
２の動力を出力する原動軸５には、動力分岐伝動
用のプーリー６が設けられている。このプーリー
６は、前記原動軸５に固定された割プーリー６ａ
と、この割プーリー６ａのボス部に遊嵌された遊
転自在な割プーリー６ｂとから構成されている。
前記遊転割プーリー６ｂには、走行系に動力を伝
達する回転伝動体として、デイスク式無段変速用
の駆動デイスク７が一体的に設けられている。そ
して、このデイスク７の後向面７ａに対向して横
軸芯をもつスプライン軸８がベアリング９，９を
介して支架されている。 As shown in FIGS. 2 and 3, the driving shaft 5 that outputs the power of the engine 2 is provided with a pulley 6 for power branch transmission. This pulley 6 is a split pulley 6a fixed to the driving shaft 5.
and a freely rotatable split pulley 6b that is loosely fitted into the boss portion of the split pulley 6a.
A drive disc 7 for disc-type continuously variable transmission is integrally provided on the free rotation split pulley 6b as a rotation transmission body for transmitting power to the traveling system. A spline shaft 8 having a horizontal axis is supported via bearings 9, 9, facing the rear surface 7a of the disk 7.
前記ベアリング９，９は、機体１の中央に設け
たミツシヨンケース４から延設されたステー１
２，１２によつて、夫々保持されている。 The bearings 9, 9 are attached to a stay 1 extending from a transmission case 4 provided in the center of the fuselage 1.
2 and 12, respectively.
前記スプライン軸８上には、受動側回転伝動体
としての受動デイスク１３が摺動自在に設けられ
ており、その外周には弾性リング１３ａが固着さ
れていて、前記駆動デイスク７の摩擦伝動面７ａ
に接当するよう構成されている。前記受動デイス
ク１３には、シフター操作用溝１４が設けられて
いて、ここにシフター１５が係合されている。 On the spline shaft 8, a passive disk 13 as a passive rotation transmission body is slidably provided, and an elastic ring 13a is fixed to the outer circumference of the passive disk 13, and the friction transmission surface 7a of the drive disk 7
It is configured to come into contact with the The passive disk 13 is provided with a shifter operation groove 14, into which a shifter 15 is engaged.
前記シフター１５は、縦軸芯周りに揺動可能に
ミツシヨンケース４に枢着され、レバー１７を介
してレリーズワイヤー１８によつてハンドル１９
の手元から変速操作できるように構成され、以つ
てデイスク式の無段変速操作機構Ａが構成されて
いる。前記スプライン軸８の一端には、変速可能
な割プーリー２０が設けられ、前記ミツシヨンケ
ース４の入力軸２１の一端に設けられたプーリー
２２との間にベルト２３が巻回されている。 The shifter 15 is pivotally connected to the transmission case 4 so as to be swingable around a vertical axis, and is connected to the handle 19 by a release wire 18 via a lever 17.
A disc-type continuously variable speed control mechanism A is configured so that the speed can be changed from the hand. A variable-speed split pulley 20 is provided at one end of the spline shaft 8, and a belt 23 is wound between the split pulley 20 and a pulley 22 provided at one end of the input shaft 21 of the transmission case 4.
２４は、テンシヨンプーリーであつて、ハンド
ル手元の操作により、前記ベルト２３を緊張弛緩
させ、クラツチ機能と変速機能を行う。前記入力
軸２１の他方端は、反対側に軸架されたPTO軸
２５に突合せ嵌合されていて、且つ下方の車軸２
６に動力伝達する減速歯車群の一つである歯車２
７が設けられている。又、前記PTO軸２５には
ベベルギヤ２８が設けられ、このギヤに咬合する
ギヤ２９が、ミツシヨンケース４から前方に突設
軸架された伝動軸３０に設けられ、かつ、伝動軸
３０は、前記割プーリー６の上方まで延設され
て、軸受３３に支架されている。 Reference numeral 24 is a tension pulley which tensions and relaxes the belt 23 by operating the handle at hand, thereby performing a clutch function and a gear shifting function. The other end of the input shaft 21 is butt-fitted to a PTO shaft 25 mounted on the opposite side, and is connected to the lower axle 2.
Gear 2, which is one of the reduction gear groups that transmits power to Gear 6
7 is provided. Further, a bevel gear 28 is provided on the PTO shaft 25, and a gear 29 that meshes with this gear is provided on a transmission shaft 30 that is mounted on a shaft projecting forward from the transmission case 4, and the transmission shaft 30 is It extends above the split pulley 6 and is supported by a bearing 33.
この伝動軸３０は、原動側プーリー６に対する
従動側プーリー３１の出力軸として構成されてい
るものであつて、軸芯方向で２分割に構成され、
且つ、第１軸部分３０ａと、間隔をもつて同軸芯
上に位置された第２軸部分３０ｂと、両軸部分３
０ａ，３０ｂに亘つてスプライン嵌合された筒軸
部分３０ｃと、この筒軸部分３０ｃを、前記両軸
部分３０ａ，３０ｂが常時一体連結状態になるよ
うに付勢するバネ３０ｄとから構成されている。
前記第１軸部分３０ａには、受動プーリー３１が
設けられ、このプーリー３１と前記割プーリー６
とに亘つてベルト３２が巻回されている。 The transmission shaft 30 is configured as an output shaft of the driven pulley 31 with respect to the driving pulley 6, and is divided into two parts in the axial direction.
In addition, the first shaft portion 30a, the second shaft portion 30b located on the same axis with an interval, and the both shaft portions 3.
The cylinder shaft portion 30c is spline-fitted across the shaft portions 0a and 30b, and a spring 30d biases the cylinder shaft portion 30c so that the shaft portions 30a and 30b are always connected integrally. There is.
A passive pulley 31 is provided on the first shaft portion 30a, and this pulley 31 and the split pulley 6
A belt 32 is wound around the belt 32.
前記受動プーリー３１の取換及びベルト３２の
掛け換えは、前記筒軸部分３０ｃを、バネ３０ｄ
に抗して移動させ、第１軸部分３０ａをフリーに
して、第２軸部分３０ｂとの間の隙間からベルト
３２を掛け換えたり、或いは第１軸部分３０ａを
支柱の軸受３３から取外して受動プーリー３１を
取換えたりする。 When replacing the passive pulley 31 and replacing the belt 32, the cylinder shaft portion 30c is replaced by the spring 30d.
The first shaft portion 30a is freed and the belt 32 is replaced through the gap between it and the second shaft portion 30b, or the first shaft portion 30a is removed from the bearing 33 of the column and the belt is moved. Replace pulley 31.
３４は、前記ベルト３２を緊張弛緩するテンシ
ヨンクラツチ用のテンシヨンプーリーであつて、
前記伝動軸３０へのクラツチ機能のみならず、前
記スプライン軸８に対するクラツチ機能をも兼ね
る主クラツチ機能を果たすように構成され、ワイ
ヤー連結でもつてハンドル１９の手元で操作され
る。 34 is a tension pulley for a tension clutch that tensions and releases the belt 32;
It is constructed to perform a main clutch function that not only functions as a clutch for the transmission shaft 30 but also functions as a clutch for the spline shaft 8, and is operated by the handle 19 through a wire connection.
尚、前記遊転割プーリー６ｂからの動力取出し
は、軸伝動、ギヤ伝動、ベルト伝動、チエーン伝
動等を任意に選択することができ、伝動手段の選
択に応じて前記回転伝動体７が、伝動軸、ギヤ、
プーリー、スプロケツト、等に適宜変形される。 Incidentally, the power output from the idle rotating split pulley 6b can be arbitrarily selected from shaft transmission, gear transmission, belt transmission, chain transmission, etc., and depending on the selection of the transmission means, the rotary transmission body 7 can be used for transmission. shaft, gear,
It can be modified into a pulley, sprocket, etc. as appropriate.
図面は本発明に係る動力伝動装置の実施例を示
し、第１図は動力伝達部の一部縦断側面図、第２
図は動力伝達部の一部横断平面図、第３図は全体
の側面図、第４図は従来伝動系の概略図である。
５……原動軸、６……原動側プーリー、６ａ…
…割プーリー、６ｂ……遊転割プーリー、７……
駆動側回転伝動体、１３……受動側回転伝動体、
３０……出力軸、３１……従動側プーリー、３２
……ベルト。
The drawings show an embodiment of the power transmission device according to the present invention, and FIG. 1 is a partially vertical side view of the power transmission section, and FIG.
The figure is a partial cross-sectional plan view of the power transmission section, FIG. 3 is an overall side view, and FIG. 4 is a schematic diagram of a conventional power transmission system. 5... Driving shaft, 6... Driving side pulley, 6a...
...split pulley, 6b... free rotating split pulley, 7...
Drive side rotation transmission body, 13... Passive side rotation transmission body,
30... Output shaft, 31... Driven side pulley, 32
……belt.
Claims (1)
伝達装置であつて、原動側プーリー６を、原動軸
５と一体回転する割プーリー６ａと、これに対し
て遊転自在な割プーリー６ｂとから構成し、その
遊転側の割プーリー６ｂの一側に分岐動力取出し
用の駆動側回転伝動体７を一体連設するととも
に、この駆動側回転伝動体７の摩擦伝動面７ａに
対向位置させて、回転周面を前記摩擦伝動面７ａ
に接当させて摩擦により駆動される受動用の回転
伝動体１３を配設し、さらに、前記原動側プーリ
ー６と、これとは別軸上の従動側プーリー３１と
にわたつてベルト３２を巻回して、前記原動軸５
の出力を、前記駆動側回転伝動体７に圧接する受
動側の回転伝動体１３と、従動側プーリー３１の
出力軸３０とに分岐伝動すべく構成し、さらに、
前記ベルト３２に作用するテンシヨンクラツチ用
のテンシヨンプーリー３４を設けて、このテンシ
ヨンプーリー３４により、前記ベルト３２をある
程度以上弛めた状態で、このベルト３２による伝
動並びに駆動側回転伝動体７を介する伝動が断た
れるように構成してある動力伝達装置。 ２ 前記遊転割プーリー６ｂに設けられる駆動側
回転伝動体７がデイスク無段変速用の駆動デイス
クである特許請求の範囲第１項に記載の動力伝達
装置。[Scope of Claims] 1. A power transmission device that branches and transmits the output of a driving shaft 5 into two systems, in which a driving side pulley 6 is divided into a split pulley 6a that rotates integrally with the driving shaft 5, and a split pulley 6a that rotates freely with respect to the split pulley 6a that rotates integrally with the driving shaft 5. A drive-side rotary transmission body 7 for taking out branched power is integrally connected to one side of the free rotation side split pulley 6b, and a friction transmission of this drive-side rotation transmission body 7 is provided. The rotating peripheral surface is positioned opposite to the surface 7a, and the rotating peripheral surface is aligned with the friction transmission surface 7a.
A passive rotation transmission body 13 is disposed in contact with and driven by friction, and a belt 32 is wound around the driving pulley 6 and a driven pulley 31 on a separate shaft. Turn the drive shaft 5
The output of the drive-side rotation transmission body 13 is in pressure contact with the drive-side rotation transmission body 7, and the output shaft 30 of the driven-side pulley 31 is configured to transmit the output in a branched manner, and further,
A tension pulley 34 for a tension clutch that acts on the belt 32 is provided, and when the belt 32 is loosened to a certain extent, the belt 32 transmits power and the drive side rotation transmission body 7 A power transmission device configured so that power transmission via the . 2. The power transmission device according to claim 1, wherein the drive-side rotary transmission body 7 provided on the free rotation split pulley 6b is a drive disk for continuously variable disk transmission.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7605985A JPS61236959A (en) | 1985-04-10 | 1985-04-10 | Power transmitting device |
| US06/839,295 US4739850A (en) | 1985-04-10 | 1986-03-13 | Walking operator type agricultural machine having transmission system with disk type frictional stepless change speed apparatus |
| FR868605122A FR2580360B1 (en) | 1985-04-10 | 1986-04-10 | AGRICULTURAL MACHINE WITH WALKING OPERATOR TYPE, PROVIDED WITH A TRANSMISSION SYSTEM PROVIDED WITH A DISC TYPE FRICTION PROGRESSIVE GEAR CHANGE APPARATUS |
| IT8620031A IT1190096B (en) | 1985-04-10 | 1986-04-10 | AGRICULTURAL MACHINE OF THE COMMIN OPERATOR TYPE HAVING A TRANSMISSION SYSTEM WITH CONTINUOUS SPEED CHANGE SPEED EQUIPMENT OF THE DISC TYPE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7605985A JPS61236959A (en) | 1985-04-10 | 1985-04-10 | Power transmitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61236959A JPS61236959A (en) | 1986-10-22 |
| JPS6314226B2 true JPS6314226B2 (en) | 1988-03-30 |
Family
ID=13594197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7605985A Granted JPS61236959A (en) | 1985-04-10 | 1985-04-10 | Power transmitting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61236959A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5737147A (en) * | 1980-08-12 | 1982-03-01 | Kubota Ltd | Operational speed change gear for operating machine |
-
1985
- 1985-04-10 JP JP7605985A patent/JPS61236959A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61236959A (en) | 1986-10-22 |
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