JPH0311062Y2 - - Google Patents
Info
- Publication number
- JPH0311062Y2 JPH0311062Y2 JP3009685U JP3009685U JPH0311062Y2 JP H0311062 Y2 JPH0311062 Y2 JP H0311062Y2 JP 3009685 U JP3009685 U JP 3009685U JP 3009685 U JP3009685 U JP 3009685U JP H0311062 Y2 JPH0311062 Y2 JP H0311062Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- clutch
- transmission
- gear
- pto
- 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
- 230000005540 biological transmission Effects 0.000 claims description 62
- 239000002184 metal Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000009977 dual effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Landscapes
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、走行系クラツチとPTO系クラツ
チとを一連のクラツチ切り操作によつて順次操作
するよう構成したダブルクラツチを備え、該ダブ
ルクラツチから内外二重軸状に延出した走行系伝
動軸とPTO系伝動軸の出力を、ギヤトランスミ
ツシヨンケースの走行系ギヤ伝動部とPTO系ギ
ヤ伝動部に伝達するよう構成してある農用トラク
タの伝動構造に関する。[Detailed description of the invention] [Industrial application field] This invention includes a double clutch configured to sequentially operate a travel system clutch and a PTO system clutch by a series of clutch disengagement operations, and An agricultural tractor configured to transmit the output of a traveling system transmission shaft and a PTO system transmission shaft extending in the form of a dual shaft inside and outside to a traveling system gear transmission section and a PTO system gear transmission section of a gear transmission case. Regarding transmission structure.
この種伝動構造としては、例えば実開昭56−
42429号公報で開示されているように、エンジン
と鋳造製のギヤトランスミツシヨンケースが連結
されて車体ボデーが構成され、このギヤトランス
ケースの内部に前記ダブルクラツチ及び内外二重
軸状の伝動軸が内装されている。
This type of transmission structure is, for example,
As disclosed in Publication No. 42429, the engine and the cast gear transmission case are connected to form a vehicle body, and the double clutch and the double-internal/internal dual-shaft transmission shaft are housed inside the gear transmission case. It's decorated.
上記従来構造では、ギヤトランスミツシヨンケ
ースに二重軸状に内装した走行系伝動軸及び
PTO系伝動軸が機体重量によるギヤトランスミ
ツシヨンケースの歪みの影響を受けないように、
ギヤミツシヨンケースの強度を相当高いものにし
ておく必要があり、エンジンとギヤトランスミツ
シヨンケースが直結される比較的大型機種にの
み、ダブルクラツチが組込まれている。
In the above conventional structure, the drive system transmission shaft and
To prevent the PTO system transmission shaft from being affected by distortion of the gear transmission case due to the weight of the machine,
The gear transmission case must be extremely strong, and only relatively large models in which the engine and gear transmission case are directly connected are equipped with a double clutch.
ところが、近年においては車体ボデーに板金製
ハウジングを多用した小型軽量の機種にもダブル
クラツチの導入が要望されつつあるが、この種小
型機では、板金製ハウジングを含んだ車体ボデー
が車体重量や負荷によつて歪むことは不可避であ
り、この車体ボデーの歪みに対する走行系及び
PTO系の伝動保護が確実になされない限り、ダ
ブルクラツチの導入は実際上不可能となる。 However, in recent years, there has been a demand for the introduction of double clutches in small and lightweight models that often use sheet metal housings in the car body. It is inevitable that the vehicle body will be distorted due to
Unless the transmission protection of the PTO system is ensured, it will be practically impossible to introduce a double clutch.
この考案は、板金製にハウジングを含んだ車体
ボデー構造の小型の農用トラクタへのダブルクラ
ツチ導入を可能にするためになされたものであ
る。 This invention was made in order to enable the introduction of a double clutch into a small agricultural tractor whose body structure includes a housing made of sheet metal.
そこで、本考案においては、実施例に示す如
く、前記ダブルクラツチ8をエンジン1に直結し
たクラツチハウジング2に内装し、このクラツチ
ハウジング2と前記ギヤトランスミツシヨンケー
ス4とを板金製の伝動ハウジング3で連結し、前
記クラツチハウジング2から伝動ハウジング3内
に延出した内外二重軸状の走行系伝動軸9と
PTO系伝動軸10とを、ギヤトランスミツシヨ
ンケース4に内外二重軸状に支承した走行軸13
とPTO系入力軸14に夫々可撓軸継手15,1
6を介して連結するとともに、内軸用の軸継手1
5をボール継手に、又、外軸用の軸継手16を前
記内軸用軸継手15を囲繞するフランジ型弾性軸
継手に構成とした。
Therefore, in the present invention, as shown in the embodiment, the double clutch 8 is housed in a clutch housing 2 directly connected to the engine 1, and the clutch housing 2 and the gear transmission case 4 are connected to a transmission housing 3 made of sheet metal. and a running system transmission shaft 9 in the form of a double shaft, an inner and outer shaft, which extends from the clutch housing 2 into the transmission housing 3.
A traveling shaft 13 that supports the PTO system transmission shaft 10 in a double shaft shape inside and outside the gear transmission case 4.
and PTO system input shaft 14 with flexible shaft joints 15 and 1, respectively.
6, and a shaft coupling 1 for the inner shaft.
5 is a ball joint, and the outer shaft joint 16 is a flange type elastic shaft joint surrounding the inner shaft joint 15.
上記構成によれば、車体重量や負荷によつて板
金製の伝動ハウジング3が多少歪んで、内外伝動
軸9,10と入力軸13,14との芯ズレが生じ
ても、各伝動系に介在した可撓軸継手15,16
がこれを吸収する。
According to the above configuration, even if the transmission housing 3 made of sheet metal is slightly distorted due to the vehicle weight or load and misalignment occurs between the inner and outer transmission shafts 9, 10 and the input shafts 13, 14, there is no interference in each transmission system. flexible shaft joints 15, 16
absorbs this.
従つて、本考案によれば、板金製伝動ハウジン
グ3を車体ボデーの一部に組入れた小型の農用ト
ラクタにもダブルクラツチの導入が可能となつ
た。
Therefore, according to the present invention, it has become possible to introduce a double clutch into a small agricultural tractor in which the sheet metal transmission housing 3 is incorporated into a part of the vehicle body.
しかも、内外二重軸の伝動系に介装する可撓軸
継手15,16として、内軸側ボール継手と、こ
れを囲繞する外軸側のフランジ型弾性軸継手を利
用した内外二重の可撓軸継手構造を構成したの
で、継手全体がコンパクトに集約でき、小型機に
組込む上で有利である。 In addition, the flexible shaft joints 15 and 16 installed in the transmission system with dual internal and external shafts utilize a ball joint on the inner shaft side and a flange-type elastic shaft joint on the outer shaft side that surrounds this. Since the flexible shaft joint structure is constructed, the entire joint can be assembled compactly, which is advantageous when incorporating it into a small machine.
第1図及び第2図に本考案に係る農用トラクタ
の伝動構造が示される。
1 and 2 show a power transmission structure for an agricultural tractor according to the present invention.
エンジン1、板金製クラツチハウジング2、板
金製伝動ハウジング3及び鋳造製ギヤトランスミ
ツシヨンケース4が順次直列に連結されて車体ボ
デーが構成され、この車体ボデーで前後に取付け
た車輪荷重を受ける構造となつている。 An engine 1, a sheet metal clutch housing 2, a sheet metal transmission housing 3, and a cast gear transmission case 4 are connected in series to form a vehicle body, and this vehicle body has a structure that supports the loads of wheels attached to the front and rear. It's summery.
前記クラツチハウジング2の内部にはエンジン
フライホイール5と、走行系クラツチ6及び
PTO系クラツチ7を前後並設したダブルクラツ
チ8が内装され、前記走行系クラツチ6によつて
動力断続される内軸式の伝動軸9と、前記PTO
系クラツチ7によつて動力断続される外軸式の伝
動軸10が後方に向けて突出支承されている。 Inside the clutch housing 2, an engine flywheel 5, a traveling system clutch 6, and
A double clutch 8 in which PTO system clutches 7 are arranged in parallel at the front and rear is installed, and an internal power transmission shaft 9 whose power is connected and disconnected by the traveling system clutch 6 and the PTO system clutch 7 are arranged in parallel.
An external transmission shaft 10 whose power is switched on and off by a system clutch 7 is supported and projects rearward.
クラツチハウジング2の後端中央には、図外ク
ラツチペダルに連係された操作アーム11によつ
て前後スライド操作されるレリーズ12が設けら
れ、ペダルの踏込みに伴うレリーズ12の前方移
動によつて先ず走行系クラツチ6が切られ、引続
く操作でPTO系クラツチ7が切られるようにな
つている。 A release 12 is provided at the center of the rear end of the clutch housing 2 and is slid back and forth by an operating arm 11 linked to a clutch pedal (not shown). The system clutch 6 is disengaged, and a subsequent operation causes the PTO system clutch 7 to be disengaged.
ギヤミツシヨンケース4の前面には走行系入力
軸13とPTO系入力軸14とが内外二重軸状に
突設されて、前記内外伝動軸9,10に対向さ
れ、各軸端同志が可撓軸継手15,16で連結さ
れている。 A travel system input shaft 13 and a PTO system input shaft 14 are protruded from the front of the gear transmission case 4 in the form of an inner and outer double shaft, and are opposed to the inner and outer transmission shafts 9 and 10, so that the ends of each shaft can be aligned with each other. They are connected by flexible joints 15 and 16.
走行系の軸継手15は、小角度で傾動自在な内
ボス15aと外ボス15bとをボール15cを介
して連結したボール継手が採用され、又、PTO
系の軸継手16は、伝動軸10側フランジ16a
と、入力軸14側のフランジ16bとをリング状
の板バネ部材16cで連結した弾性軸継手が採用
され、かつ、この弾性軸継手16は球継手15を
囲繞するように配備されている。 The shaft joint 15 of the traveling system is a ball joint in which an inner boss 15a and an outer boss 15b, which can be tilted at a small angle, are connected via a ball 15c.
The shaft coupling 16 of the system has a flange 16a on the transmission shaft 10 side.
An elastic shaft joint is employed in which the input shaft 14 and the flange 16b on the input shaft 14 side are connected by a ring-shaped leaf spring member 16c, and the elastic shaft joint 16 is arranged so as to surround the ball joint 15.
ギヤミツシヨンケース4に組込まれるギヤ変速
装置を以下に説明する。 The gear transmission device incorporated into the gear transmission case 4 will be described below.
走行系ギヤ変速装置としては、前進3段後進1
段の変速を行う主変速機構17、高低2段の変速
を行う超減速機構18、及び副変速機構19が直
列に組込まれている。 The driving gear transmission has 3 forward speeds and 1 reverse speed.
A main transmission mechanism 17 that changes gears, a super reduction mechanism 18 that changes gears between high and low gears, and a sub-transmission mechanism 19 are incorporated in series.
前記主変速機構17は、入力軸13に固定され
た第1ギヤG1第2ギヤG2、第3ギヤG3、バツク
軸20に遊嵌した2段のバツクギヤG4,G5、及
び第2軸21にスプライン嵌着した第1シフトギ
ヤG6、第2シフトギヤG7及び前記第3ギヤG3に
常時咬合する遊転ギヤG8からなり、第1シフト
ギヤG6を第1ギヤG1に咬合させて前進1速を得、
第1シフトギヤG6をバツクギヤG4に咬合させて
後進を得、又、第2シフトギヤG7を第2ギヤG2
に咬合させて前進2速を得、第2シフトギヤG7
を遊転ギヤG8に一体化することで前進3速が得
られる。 The main transmission mechanism 17 includes a first gear G 1 fixed to the input shaft 13 , a second gear G 2 , a third gear G 3 , two-stage back gears G 4 and G 5 loosely fitted to the back shaft 20 , Consisting of a first shift gear G 6 spline-fitted to two shafts 21, a second shift gear G 7 , and an idling gear G 8 constantly meshing with the third gear G 3 , the first shift gear G 6 is connected to the first gear G 1. occlusion and obtain 1st forward speed,
The first shift gear G6 is engaged with the back gear G4 to obtain reverse movement, and the second shift gear G7 is engaged with the second gear G2.
to obtain two forward speeds, and the second shift gear G 7
By integrating this into the idling gear G8 , three forward speeds can be obtained.
超減速機構19は、第2軸21に一体連結した
第3軸22の第1遊転ギヤG9、第2遊転ギヤ
G10、第3軸22にスプライン外嵌したシフトス
リーブ23、第4軸24に固着したギヤG11,
G12からなり、シフトスリーブ23を図示のよう
に第1遊転ギヤG9にスプライン連結させると、
第4軸24が標準速度で駆動され、シフトスリー
ブ23を第2遊転ギヤG10にスプライン連結させ
ると第4軸24が減速駆動される。前記副変速機
構19は、第4軸24に固設したギヤG13,G14
最終変速軸であるベベルピニオン軸25にスプラ
イン嵌着した2段シフトギヤG15,G16とからな
り、シフトギヤG15を前記ギヤG13に咬合させる
と低速が、又、シフトギヤG16をギヤG14に咬合
させると高速が得られる。尚、このベベルピニオ
ン軸25はベベルピニオンギヤG17を介して後車
軸用デラ機構に連動連結される。 The super reduction mechanism 19 includes a first idling gear G 9 and a second idling gear of a third shaft 22 integrally connected to the second shaft 21.
G 10 , shift sleeve 23 externally fitted with a spline on the third shaft 22, gear G 11 fixed to the fourth shaft 24,
G12 , and when the shift sleeve 23 is spline connected to the first free rotating gear G9 as shown in the figure,
The fourth shaft 24 is driven at a standard speed, and when the shift sleeve 23 is spline-connected to the second idling gear G10 , the fourth shaft 24 is driven at a reduced speed. The sub-transmission mechanism 19 includes gears G 13 and G 14 fixed to the fourth shaft 24.
Consisting of two-stage shift gears G 15 and G 16 spline-fitted to a bevel pinion shaft 25, which is the final gear shift shaft, when shift gear G 15 is engaged with gear G 13 , low speed is achieved, and shift gear G 16 is engaged with gear G 14 . High speed can be obtained by interlocking with. The bevel pinion shaft 25 is operatively connected to the rear axle mechanism via a bevel pinion gear G17 .
次に、PTO伝動系について説明する。 Next, the PTO transmission system will be explained.
PTO系入力軸14のケース内挿入部には一対
のギヤG18,G19が一体形成され、入力軸14下
方の第6軸26にスプライン嵌着した2段シフト
ギヤG20,G21をこれらギヤG18,G19に択一咬合
させることで高低2段の変速を行うPTO変速機
構27が構成されている。 A pair of gears G 18 and G 19 are integrally formed in the insertion part of the PTO system input shaft 14 into the case, and two-stage shift gears G 20 and G 21 spline-fitted to the sixth shaft 26 below the input shaft 14 are connected to these gears. A PTO transmission mechanism 27 is configured that performs two-stage gear change, high and low, by selectively engaging G 18 and G 19 .
PTO系の前記第6軸26の動力は、ギヤG22,
G23を介して第7軸28及びこれに直結した第8
軸29に伝えられたのち、トルクリミツタ30を
介して第9軸31に至り、更に減速ギヤG24,
G25を介して後部PTO軸32に伝達される。 The power of the sixth shaft 26 of the PTO system is transmitted through gears G 22 ,
The seventh shaft 28 and the eighth shaft directly connected thereto via G 23
After being transmitted to the shaft 29, the torque is transmitted to the ninth shaft 31 via the torque limiter 30, and further to the reduction gear G24 ,
G 25 to the rear PTO shaft 32.
又、第7軸28のギヤG26を介して取出された
PTO動力がギヤG27,G28を介してケース下部に
取付けた中間PTO軸33にも伝えられる。 In addition, it is taken out via the gear G 26 of the seventh shaft 28.
The PTO power is also transmitted to the intermediate PTO shaft 33 attached to the lower part of the case via gears G 27 and G 28 .
図面は本考案に係る農用トラクタの伝動構造の
実施例を示し、第1図は伝動構造前半部の縦断側
面図、第2図は後半部の縦断側面図である。
2……クラツチハウジング、3……伝動ハウジ
ング、4……ギヤトランスミツシヨンケース、6
……走行系クラツチ、7……PTO系クラツチ、
8……ダブルクラツチ、9……走行系伝動軸、1
0……PTO系伝動軸、13……走行系入力軸、
14……PTO系入力軸、15……可撓継手、1
6……可撓継手。
The drawings show an embodiment of the power transmission structure for an agricultural tractor according to the present invention, in which FIG. 1 is a longitudinal sectional side view of the first half of the transmission structure, and FIG. 2 is a longitudinal sectional side view of the second half. 2...Clutch housing, 3...Transmission housing, 4...Gear transmission case, 6
...Traveling clutch, 7...PTO clutch,
8...Double clutch, 9...Travel system transmission shaft, 1
0...PTO system transmission shaft, 13...Traveling system input shaft,
14...PTO system input shaft, 15...Flexible joint, 1
6...Flexible joint.
Claims (1)
連のクラツチ切り操作によつて順次操作するよう
構成したダブルクラツチ8を備え、該ダブルクラ
ツチ8から内外二重軸状に延出した走行系伝動軸
9とPTO系伝動軸10の出力を、ギヤトランス
ミツシヨンケース4の走行系ギヤ伝動部とPTO
系ギヤ伝動部に伝達するよう構成してある農用ト
ラクタの伝動構造であつて、前記ダブルクラツチ
8をエンジン1に直結したクラツチハウジング2
に内装し、このクラツチハウジング2と前記ギヤ
トランスミツシヨンケース4とを板金製の伝動ハ
ウジング3で連結し、前記クラツチハウジング2
から伝動ハウジング3内に延出した内外二重軸状
の走行系伝動軸9とPTO系伝動軸10とをギヤ
トランスミツシヨンケース4に内外二重軸状に支
承した走行系入力軸13とPTO系入力軸14に
夫々可撓軸継手15,16を介して連結するとと
もに、内軸用の軸継手15をボール継手に、又、
外軸用の軸継手16を前記内軸用軸継手15を囲
繞するフランジ型弾性軸継手に構成してある、農
用トラクタの伝動構造。 A drive system power transmission shaft 9 is provided with a double clutch 8 configured to sequentially operate a drive system clutch 6 and a PTO system clutch 7 by a series of clutch disengagement operations, and extends from the double clutch 8 in the form of a dual inner and outer shaft. The output of the PTO system transmission shaft 10 is transferred to the traveling system gear transmission section of the gear transmission case 4 and the PTO system transmission shaft 10.
A clutch housing 2 in which the double clutch 8 is directly connected to the engine 1, which is a transmission structure for an agricultural tractor configured to transmit power to a system gear transmission section.
This clutch housing 2 and the gear transmission case 4 are connected by a transmission housing 3 made of sheet metal, and the clutch housing 2
A running system power transmission shaft 9 and a PTO system transmission shaft 10 are supported in the gear transmission case 4 in the form of double internal and external shafts, and a PTO system input shaft 13 is supported in the gear transmission case 4 in the form of a double internal and external shaft. It is connected to the system input shaft 14 via flexible shaft joints 15 and 16, respectively, and the shaft joint 15 for the inner shaft is a ball joint, and
A transmission structure for an agricultural tractor, in which an outer shaft coupling 16 is configured as a flange type elastic coupling surrounding the inner shaft coupling 15.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3009685U JPH0311062Y2 (en) | 1985-03-01 | 1985-03-01 | |
FR858514484A FR2578204B1 (en) | 1985-03-01 | 1985-09-30 | TRANSMISSION STRUCTURE FOR AGRICULTURAL TRACTOR |
GB08524361A GB2173158B (en) | 1985-03-01 | 1985-10-02 | Transmission structure for agricultural tractor |
US06/789,767 US4677866A (en) | 1985-03-01 | 1985-10-21 | Coupling system and double shaft transmission structure for an argicultural tractor |
CA000493665A CA1238208A (en) | 1985-03-01 | 1985-10-23 | Transmission structure for agricultural tractor |
DE19863600853 DE3600853A1 (en) | 1985-03-01 | 1986-01-14 | TRANSMISSION TRAINING FOR AN AGRICULTURAL TRACTOR |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3009685U JPH0311062Y2 (en) | 1985-03-01 | 1985-03-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61145036U JPS61145036U (en) | 1986-09-06 |
JPH0311062Y2 true JPH0311062Y2 (en) | 1991-03-18 |
Family
ID=30529484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3009685U Expired JPH0311062Y2 (en) | 1985-03-01 | 1985-03-01 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0311062Y2 (en) |
-
1985
- 1985-03-01 JP JP3009685U patent/JPH0311062Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS61145036U (en) | 1986-09-06 |
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