JPS628182Y2 - - Google Patents
Info
- Publication number
- JPS628182Y2 JPS628182Y2 JP1980105791U JP10579180U JPS628182Y2 JP S628182 Y2 JPS628182 Y2 JP S628182Y2 JP 1980105791 U JP1980105791 U JP 1980105791U JP 10579180 U JP10579180 U JP 10579180U JP S628182 Y2 JPS628182 Y2 JP S628182Y2
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- shaft
- transmission case
- 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 164
- 230000007246 mechanism Effects 0.000 claims description 11
- 210000000078 claw Anatomy 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Description
【考案の詳細な説明】
この考案は、農用その他の自走式作業車におけ
る伝動装置、より詳しくは、左右の後輪へ伝動す
るミツシヨンケースを該左右の後輪間に設置して
ある自走式作業車における伝動装置に、関するも
のである。[Detailed explanation of the invention] This invention is a transmission device for agricultural and other self-propelled working vehicles, more specifically, a transmission case that transmits power to the left and right rear wheels, which is installed between the left and right rear wheels. The present invention relates to a transmission device for a mobile work vehicle.
かかる伝動装置を備えた自走式作業車において
機体後部方向に作業機駆動力を取出しうるように
することは、米国特許No.3375737及び実公昭50−
34428号公報から既に公知である。 In a self-propelled working vehicle equipped with such a transmission device, it is possible to extract the working machine driving force toward the rear of the body, as disclosed in U.S. Patent No. 3375737 and Japanese Utility Model Publication No.
It is already known from Publication No. 34428.
上記した両公知例のうち米国特許No.3375737に
開示のものは、ミツシヨンケース内に横架して設
けたミツシヨン入力軸であつてミツシヨンケース
内へと入力伝導するための機体前後方向に沿う伝
動軸とミツシヨンケース内におき傘歯車伝動機構
により連動連結してあるミツシヨン入力軸を、そ
の一端側でミツシヨンケース外へと延出させ、同
延出端部から作業機駆動力を取出すこととしてい
る。したがつて機体後部方向に作業機駆動力を取
出すためには、ミツシヨンケースの一側外方位置
に機体前後方向に沿う伝動軸を配置して、この伝
動軸をその前端部で上記したミツシヨン入力軸の
延出端部に傘歯車伝動機構により連動連結する構
造が採用されることになる。このためミツシヨン
ケースの内外で動力伝導方向転換用の２組の傘歯
車伝動機構を必要とすることになる。 Of the above-mentioned known examples, the one disclosed in U.S. Patent No. 3375737 is a transmission input shaft that is installed horizontally within the transmission case, and is connected in the longitudinal direction of the machine to transmit input into the transmission case. The transmission input shaft, which is interlocked with the transmission shaft along the transmission line and the transmission mechanism of bevel gears placed inside the transmission case, is extended out of the transmission case at one end, and the driving force of the work machine is transmitted from the extended end. I am planning to take it out. Therefore, in order to extract the working machine driving force toward the rear of the machine, a transmission shaft that runs along the longitudinal direction of the machine is arranged outside one side of the transmission case, and this transmission shaft is connected to the above-mentioned transmission shaft at its front end. A structure will be adopted in which the extending end of the input shaft is interlocked and connected by a bevel gear transmission mechanism. Therefore, two sets of bevel gear transmission mechanisms for changing the direction of power transmission are required inside and outside the transmission case.
次に前記の実公昭50−34428号公報に開示のも
のは、ミツシヨンケースの前面に装着して油圧伝
導装置を設け、該油圧伝導装置のモータ軸からミ
ツシヨンケース内へと入力伝導する構造におい
て、油圧伝導装置を、そのポンプ軸がミツシヨン
ケースの上面レベルよりも上方に位置するように
設置して上記ポンプ軸を後方へと延出させ、該ポ
ンプ軸から中間軸を介し入力伝導を受けるクラツ
チ装置をミツシヨンケースの上面上に設置すると
共に、該クラツチ装置から入力伝導を受ける
PTO伝動ケースをミツシヨンケースの背面上
に、PTO伝動ケースの上半部がミツシヨンケー
スの上面レベルよりも上方に位置するように配置
して設置し、PTO伝動ケースに後方へ延出する
PTO軸を装備させている。この構造はしかし油
圧伝導装置を設けない伝動装置では採用できず、
また上記のクラツチ装置はこれを省略したとして
も油圧伝導装置とPTO伝動ケースとを比較的に
高レベルに配置せざるを得ない。 Next, the one disclosed in the above-mentioned Japanese Utility Model Publication No. 50-34428 has a structure in which a hydraulic transmission device is attached to the front of the transmission case, and input is transmitted from the motor shaft of the hydraulic transmission device into the inside of the transmission case. , the hydraulic transmission device is installed so that its pump shaft is located above the upper surface level of the transmission case, the pump shaft extends rearward, and input transmission is conducted from the pump shaft through the intermediate shaft. A receiving clutch device is installed on the upper surface of the transmission case and receives input conduction from the clutch device.
Install the PTO transmission case on the back of the transmission case so that the upper half of the PTO transmission case is located above the level of the top surface of the transmission case, and extends rearward into the PTO transmission case.
Equipped with a PTO axis. However, this structure cannot be used in transmission devices that do not have a hydraulic transmission device.
Furthermore, even if the clutch device described above is omitted, the hydraulic transmission device and the PTO transmission case must be arranged at a relatively high level.
この考案は油圧伝導装置を設けない構造の伝動
装置において、動力伝導方向転換用の傘歯車伝動
機構を１組のみとし、且つ、ミツシヨンケース背
面上に設置するPTO伝動ケースの配置レベルを
ミツシヨンケースの上下幅内に納めうるようにし
つつ、機体後部方向に作業機駆動力を取出しうる
ようにしようとするものであり、またそのための
構造が、重量物であるエンジンを機体横幅方向の
略中央位置に配置するといつた、従来から慣用さ
れているエンジン安定配置方式を阻害しないよう
にしようとするものである。 This idea uses only one set of bevel gear transmission mechanism for changing the direction of power transmission in a transmission system that does not include a hydraulic transmission device, and also reduces the arrangement level of the PTO transmission case installed on the back of the transmission case. It is intended to be able to be stored within the vertical width of the case, while also allowing the drive power of the work equipment to be taken out toward the rear of the machine.The structure for this purpose also allows the heavy engine to be placed approximately in the center of the machine in the width direction. This is intended to avoid interfering with the conventional stable engine arrangement method, which is to place the engine at a certain position.
この考案課題を解決するためにこの考案は添付
図に例示するように、左右の後輪２へ伝動するミ
ツシヨンケース５を該左右の後輪２間に設置して
ある自走式作業車において、次のような技術的手
段を講じた。 In order to solve this problem, this invention was developed in a self-propelled working vehicle in which a transmission case 5 that transmits power to the left and right rear wheels 2 is installed between the left and right rear wheels 2, as illustrated in the attached drawing. , took the following technical measures:
すなわちこの考案は先ず、前記ミツシヨンケー
ス５を前記した左右の後輪２間で左右方向の一側
に片寄せて配置する。このミツシヨンケース５の
配置は第２図に示されていて、ミツシヨンケース
５から左右に延出させた左右のミツシヨン出力軸
１９Ａ，１９Ｂ端に左右の後輪２を取付けるため
の取付フランジ２ａを嵌着して、該フランジ２ａ
を利用し各ミツシヨン出力軸１９Ａ，１９Ｂに後
輪２を取付ける構造を採用しているのに対し、左
右の取付フランジ２ａ間の中心線Ｐ、つまり機体
左右方向の中心に位置する線Ｐがミツシヨンケー
ス５の横幅方向の中心からかなり大きく齟齬する
ように該ミツシヨンケース５が配置されている。 That is, in this invention, first, the transmission case 5 is disposed to one side in the left-right direction between the left and right rear wheels 2 described above. The arrangement of the transmission case 5 is shown in FIG. 2, with mounting flanges 2a for attaching the left and right rear wheels 2 to the left and right transmission output shafts 19A, 19B extending left and right from the transmission case 5. by fitting the flange 2a
However, the center line P between the left and right mounting flanges 2a, that is, the line P located at the center of the machine in the left-right direction, The transmission case 5 is arranged so as to deviate considerably from the center of the transmission case 5 in the width direction.
左右の後輪２間に位置させたミツシヨンケース
５を上記のように配置した上でこの考案は、第１
図に示すエンジン４から図例では中間の伝動軸６
を介し該ミツシヨンケース５内へと入力伝導する
伝動軸７を第２，３図に示すように、前記ミツシ
ヨンケース５の他側外方位置に機体前後方向に沿
わせて設け、該伝動軸７と前記ミツシヨンケース
５の入力軸１２とを傘歯車伝動機構１３，１４に
より連動連結する。 With the transmission case 5 located between the left and right rear wheels arranged as described above, this invention
From the engine 4 shown in the figure to the intermediate transmission shaft 6 in the example shown.
As shown in FIGS. 2 and 3, a transmission shaft 7 that transmits input into the transmission case 5 is provided along the longitudinal direction of the machine at the other outer position of the transmission case 5. The shaft 7 and the input shaft 12 of the transmission case 5 are interlocked and connected by bevel gear transmission mechanisms 13 and 14.
そして第２−４図に例示するように前記ミツシ
ヨンケース５の背面上に、機体後部方向に延出す
るPTO軸２５を装備するPTO伝動ケース２３
を、左右方向でみて上記伝動軸７が位置する側に
はみ出させて設置して、上記伝動軸７を該PTO
伝動ケース２３内へ入力伝導する伝動軸に構成す
るのである。 As illustrated in FIG. 2-4, a PTO transmission case 23 is equipped with a PTO shaft 25 extending toward the rear of the aircraft on the back surface of the transmission case 5.
is installed so as to protrude to the side where the transmission shaft 7 is located when viewed in the left-right direction, and the transmission shaft 7 is connected to the PTO.
It is configured as a transmission shaft that transmits input into the transmission case 23.
実施例について説明すると、左右１対宛の前輪
１及び後輪２を装備する機体の下面側にモア３を
装備させ、駆動源となるエンジン４を機体前部
に、出力軸を前後に延出させて搭載し、左右の後
輪２間にミツシヨンケース５を設置すると共に、
エンジン４からこのミツシヨンケース５方向に伝
動する伝動軸６を、前後両端をフレキシブル・カ
ツプリングによりエンジン４出力軸及び後述伝動
軸７へと接続して、機体前後方向に沿いやや傾斜
させて設け、上記伝動軸６，７からミツシヨンケ
ース５内へ入力伝導し、ミツシヨンケース５内の
トランスミツシヨンにより左右の後輪２を回転駆
動して、機体の走行を行なわせるように構成さ
れ、またエンジン４の前部にPTOプーリー８を
設けると共に、モア３に入力プーリー９を設け
て、該両プーリー８，９間に適宜の中間プーリー
を含むベルト伝動機構を設け、モア３駆動を行な
うように構成され、さらに機体後部上面に設置さ
れた座席１０に座乗する作業者がその前方の操縦
ハンドル１１により、左右の前輪１を振つて機体
操向を行なうように、構成されたモア・トラクタ
において、この考案は、次のように実施されてい
る。 To explain the embodiment, a mower 3 is installed on the underside of a machine that is equipped with a pair of left and right front wheels 1 and rear wheels 2, an engine 4 serving as a driving source is provided at the front of the machine, and an output shaft extends forward and backward. and install the transmission case 5 between the left and right rear wheels.
A transmission shaft 6 that transmits power from the engine 4 in the direction of the transmission case 5 is connected to the engine 4 output shaft and the transmission shaft 7 described later by flexible couplings at both front and rear ends, and is slightly inclined along the longitudinal direction of the aircraft. The input is transmitted from the transmission shafts 6 and 7 into the transmission case 5, and the transmission inside the transmission case 5 rotates the left and right rear wheels 2 to cause the aircraft to travel. A PTO pulley 8 is provided at the front of the engine 4, an input pulley 9 is provided on the mower 3, and a belt transmission mechanism including an appropriate intermediate pulley is provided between the pulleys 8 and 9 to drive the mower 3. In a mower tractor, the mower tractor is configured such that a worker sitting on a seat 10 installed on the upper surface of the rear part of the machine can direct the machine by swinging the left and right front wheels 1 using a control handle 11 in front of the operator. , this idea is implemented as follows.
すなわち、第２図に示すように、前記ミツシヨ
ンケース５内の最上部には、入力軸１２を機体横
断方向に沿わせて設けてあり、機体前後方向に沿
わせて設けてある前記伝動軸７と該入力軸１２と
が、第２，３図に示すように、これらの各軸７，
１２に嵌着された傘歯車１３，１４同士を噛合せ
ることで、連動連結されている。ミツシヨンケー
ス５内にはさらに、上記した入力軸１２に平行さ
せて、前進変速軸１６、後進変速軸１７及び副変
速軸１８を、この順で上下位置を低く配置して、
設けてあり、ミツシヨンケース５内の最下部には
左右のミツシヨン出力軸１９Ａ，１９Ｂを、上記
の各軸１２，１６，１７，１８に平行させ、且
つ、ミツシヨンケース５から左右に延出させて、
設けてあり、左右の後輪２は該左右のミツシヨン
出力軸１９Ａ，１９Ｂ間に直接取付けられてい
る。ミツシヨンケース５内には、互に直列接続さ
れた主変速装置２０と副変速装置２１とを、上下
に配して設けてある。 That is, as shown in FIG. 2, an input shaft 12 is provided at the top of the transmission case 5 along the transverse direction of the machine body, and the transmission shaft 12 is provided along the longitudinal direction of the machine body. 7 and the input shaft 12, as shown in FIGS.
By meshing the bevel gears 13 and 14 fitted to the bevel gear 12, they are interlocked and connected. Further, inside the transmission case 5, a forward speed change shaft 16, a reverse speed change shaft 17, and an auxiliary speed change shaft 18 are arranged in this order in parallel with the input shaft 12, with their vertical positions lower.
Left and right transmission output shafts 19A and 19B are provided at the lowest part of the transmission case 5, parallel to the above-mentioned shafts 12, 16, 17, and 18, and extending left and right from the transmission case 5. Let me,
The left and right rear wheels 2 are directly attached between the left and right transmission output shafts 19A and 19B. Inside the transmission case 5, a main transmission 20 and a sub-transmission 21 which are connected in series are arranged vertically.
ミツシヨンケース５内へ入力伝導する前記伝動
軸７は、第２−４図に示すように、ミツシヨンケ
ース５の一側壁外面上に装着したケーシング２２
に、前端部と後端部とを該ケーシング２２外へ突
出させて、回転自在に支持させてあつて、ミツシ
ヨンケース５の一側外方位置に、前後方向に沿わ
せて設けられている。そして、ミツシヨンケース
５の背面上には、ミツシヨンケース５一側方向に
若干、一側端部をはみ出させてあるPTO伝動ケ
ース２３を、装着してある。このPTO伝動ケー
ス２３内には、伝動軸７と同心的に配され前端部
を該伝動軸７方向へと延出させてある入力軸２４
と、該入力軸２４に平行させて機体巾方向のほぼ
中央位置に配され後端部を機体後方向きに延出さ
せてあるPTO軸２５とを、設けてある。そし
て、伝動軸７と入力軸２４間をカツプリング２６
によつて連結し、もつて伝動軸７を、PTO伝動
ケース２３内へ入力伝導する伝動軸に構成してあ
る。上記した入力軸２４とPTO軸２５とは図示
の場合、入力軸２４上の小径歯車２７とPTO軸
２５上の大径歯車２８とを噛合せることで常時、
減速連動連結されている。なおPTO伝動ケース
２３内に、PTOクラツチとかPTO変速装置とか
を設けることも、任意に行なえる。ケーシング２
２の後端部には、カバー装着部２２ａを形成して
あり、上記のようなPTO機構を設けない仕様の
モア・トラクタとするときは、該カバー装着部２
２ａを利用して第３図に想像線図示のカバーＣを
装着して伝動軸７後端部を覆えるように、してあ
る。 The transmission shaft 7 that transmits input into the mission case 5 is connected to a casing 22 mounted on the outer surface of one side wall of the mission case 5, as shown in FIG. 2-4.
The front end and the rear end are made to project outside the casing 22 and are rotatably supported, and is provided at an outer position on one side of the transmission case 5 along the front-rear direction. . A PTO transmission case 23 is mounted on the back surface of the transmission case 5, with one end slightly protruding toward one side of the transmission case 5. Inside this PTO transmission case 23, an input shaft 24 is disposed concentrically with the transmission shaft 7 and has a front end extending in the direction of the transmission shaft 7.
A PTO shaft 25 is provided, which is parallel to the input shaft 24 and is arranged approximately at the center in the width direction of the machine body, with its rear end extending toward the rear of the machine body. A coupling 26 is connected between the transmission shaft 7 and the input shaft 24.
The transmission shaft 7 is configured as a transmission shaft that transmits input into the PTO transmission case 23. In the illustrated case, the input shaft 24 and the PTO shaft 25 described above are always connected by meshing the small diameter gear 27 on the input shaft 24 and the large diameter gear 28 on the PTO shaft 25.
It is linked to deceleration. Note that it is also possible to optionally provide a PTO clutch or a PTO transmission within the PTO transmission case 23. Casing 2
A cover mounting part 22a is formed at the rear end of the cover mounting part 2. When the mower tractor is designed without a PTO mechanism as described above, the cover mounting part 2 is formed at the rear end of the cover mounting part 2.
2a is used to attach a cover C shown in phantom lines in FIG. 3 so as to cover the rear end of the transmission shaft 7.
前記した主変速装置２０は、第２図に示すよう
に、入力軸１２と前進変速軸１６及び後進変速軸
１７との間に、配設されており、図示の場合に
は、次のような油圧クラツチ式の変速装置に構成
されている。すなわち、入力軸１２上には互に歯
数を異にする２個の変速歯車３０，３１を嵌着し
てあり、また前進変速軸１６上には該変速歯車３
０，３１にそれぞれ噛合されたF1遊転歯車３３
及びF2遊転歯車３４を、後進変速軸１７上には
ミツシヨンケース５に支持させた支軸３５上に設
けられ変速歯車３０へと噛合せてあるＲ中間歯車
３６に噛合されたＲ遊転歯車３７を、それぞれ遊
嵌設置してある。前進変速軸１６上には、該変速
軸１６上に固定設置したクラツチハウジングと各
遊転歯車３３，３４とに複数枚宛の摩擦エレメン
トを摺動のみ自在に支持させてなる多板式のF1
油圧クラツチ３８及びF2油圧クラツチ３９を、
設けてあり、また後進変速軸１７上には、該変速
軸１７上に固定設置したクラツチハウジングとＲ
遊転歯車３７とに複数枚宛の摩擦エレメントを摺
動のみ自在に支持させてなる多板式のＲ油圧クラ
ツチ４０を、設けてある。前進変速軸１６及び後
進変速軸１７には、第２図でみてミツシヨンケー
ス５内の右端部におき小径の出力歯車４１及び４
２を、それぞれ一体形成してあり、これらの出力
歯車４１，４２を、第２図でみて副変速軸１８の
右半部上に遊嵌設置された中空軸４３の右端部に
一体形成せる大径の減速歯車４４へと、噛合せて
ある。以上により主変速装置２０は中空軸４３
を、F1油圧クラツチ３８の作動によりF1遊転歯
車３３を前進変速軸１６に結合すると前進１速
F1の回転数で、またF2油圧クラツチ３９の作動
によりF2遊転歯車３４を前進変速軸１６に結合
すると前進２速F2の回転数で、さらにＲ油圧ク
ラツチ４０の作動によりＲ遊転歯車３７を後進変
速軸１７に結合すると後進１速Ｒの回転数で、そ
れぞれ選択的に回転させるものと、されている。 As shown in FIG. 2, the main transmission 20 described above is disposed between the input shaft 12, the forward speed change shaft 16, and the reverse speed change shaft 17, and in the case shown in the figure, the following It is configured with a hydraulic clutch type transmission. That is, two speed change gears 30 and 31 having different numbers of teeth are fitted on the input shaft 12, and the speed change gear 3 is fitted on the forward speed change shaft 16.
F1 idler gear 33 meshed with 0 and 31 respectively
The F2 idler gear 34 is connected to the R idler gear 36 which is provided on the support shaft 35 supported by the transmission case 5 on the reverse gear shaft 17 and is meshed with the R intermediate gear 36 which is meshed with the gearshift gear 30. Rotating gears 37 are loosely fitted to each other. On the forward speed change shaft 16, there is a multi-plate type F1 in which a clutch housing fixedly installed on the forward speed change shaft 16 and each free rotating gear 33, 34 support a plurality of friction elements so as to be slidable only.
Hydraulic clutch 38 and F2 hydraulic clutch 39,
A clutch housing fixedly installed on the reverse gear shaft 17 and an R
A multi-disc type R hydraulic clutch 40 is provided in which a plurality of friction elements are slidably supported by an idling gear 37. The forward speed change shaft 16 and the reverse speed change shaft 17 have small diameter output gears 41 and 4 located at the right end inside the transmission case 5 as seen in FIG.
2, and these output gears 41 and 42 are formed integrally with the right end of a hollow shaft 43 which is loosely fitted onto the right half of the sub-transmission shaft 18 as seen in FIG. It is meshed with a reduction gear 44 of the diameter. As described above, the main transmission 20 has a hollow shaft 43
When the F1 idler gear 33 is connected to the forward speed change shaft 16 by the operation of the F1 hydraulic clutch 38, the first forward speed is set.
When the F 2 idler gear 34 is connected to the forward speed change shaft 16 by the operation of the F 2 hydraulic clutch 39, the R idler is activated at the rotation speed of the second forward speed F 2 and further by the operation of the R hydraulic clutch 40. When the rotary gears 37 are connected to the reverse speed change shaft 17, they are selectively rotated at the rotation speed of the first reverse speed R.
また、前記した副変速装置２１は、第２図でみ
て後進変速軸１７の左半部上に遊嵌設置された中
空軸４５であつて右端部に一体形成した大径の減
速歯車４６を前記中空軸４３の左端部に一体形成
した小径歯車４７に噛合せることで中空軸４３に
減速連動連結されている中空軸４５上に、該中空
軸４５と一体の、互に歯数を異にする２個の変速
歯車４８，４９を設けると共に、副変速軸１８上
に、変速歯車４８に噛合された遊転歯車５０と変
速歯車４９に噛合い可能なシフト歯車５１とを、
設けてあるものに構成されている。遊転歯車５０
には、シフト歯車５１を噛合せ得る内歯５０ａを
形成してあり、また小径歯車４７端とシフト歯車
５１端とに互に噛合せ得る爪５２ａ，５２ｂを形
成して、該爪５２ａ，５２ｂの噛合により係合せ
しめられる噛合クラツチ５２が構成されている。
以上により副変速装置２１は、副変速軸１８上で
シフト歯車５１を選択的にシフト操作して、該シ
フト歯車５１を内歯５０ａに噛合せ遊転歯車５０
を副変速軸１８に結合することで１速の変速比
を、またシフト歯車５１を変速歯車４９に噛合せ
ることで２速の変速比を、さらに爪５２ｂを爪５
２ａに噛合せ噛合クラツチ５２を係合させ中空軸
４３と副変速軸１８とを結合することで３速の変
速比を、それぞれ選択的に得さしめるものとされ
ている。 The above-described sub-transmission device 21 also includes a hollow shaft 45 that is loosely fitted onto the left half of the reverse shift shaft 17 as seen in FIG. On the hollow shaft 45, which is connected to the hollow shaft 43 in a deceleration manner by meshing with a small diameter gear 47 formed integrally with the left end of the hollow shaft 43, there are provided gears having different numbers of teeth, which are integral with the hollow shaft 45. Two speed change gears 48 and 49 are provided, and an idling gear 50 that meshes with the speed change gear 48 and a shift gear 51 that can mesh with the speed change gear 49 are provided on the auxiliary speed change shaft 18.
It is configured according to what is provided. Idle gear 50
is formed with internal teeth 50a that can be engaged with the shift gear 51, and pawls 52a and 52b that can be engaged with each other are formed at the end of the small diameter gear 47 and the end of the shift gear 51. A dog clutch 52 is constructed which is engaged by the meshing of the two.
As described above, the sub-transmission device 21 selectively shifts the shift gear 51 on the sub-transmission shaft 18, meshes the shift gear 51 with the internal teeth 50a, and causes the idle gear 50 to mesh with the internal teeth 50a.
is connected to the auxiliary transmission shaft 18 to set the 1st speed gear ratio, and by meshing the shift gear 51 with the transmission gear 49, the 2nd gear gear ratio is set.
By engaging the meshing clutch 52 to connect the hollow shaft 43 and the auxiliary transmission shaft 18, three speed change ratios can be selectively obtained.
以上よりして、主変速装置２０及び副変速装置
２１より成る変速部は、その終段に位置し変速部
出力軸を構成している副変速軸１８に、前進方向
で６段、後進方向で３段の合計９段に変速可能な
出力回転を付与するものとなつている。 As described above, the transmission section consisting of the main transmission 20 and the auxiliary transmission 21 has six speeds in the forward direction and six speeds in the reverse direction on the sub-transmission shaft 18, which is located at the final stage and constitutes the transmission part output shaft. It is designed to provide variable speed output rotation to three stages, a total of nine stages.
前記した左右のミツシヨン出力軸１９Ａ，１９
Ｂ間には、ミツシヨンケース５内の一側において
左右後輪２用の差動装置５３を設けてあり、副変
速軸１８は、該軸１８端に一体形成した変速部出
力歯車５４を差動装置５３の大径入力歯車５５と
噛合せることで、差動装置５３へと連動連結され
ている。差動装置５３には、一側のミツシヨン出
力軸１９Ｂに摺動自在にスプライン嵌合されたク
ラツチ金物５６であつて差動装置５３のデフハウ
ジングと一体回転する上記入力歯車５５のボス部
内周面に形成された爪５５ａに噛合せ得る爪５６
ａを外周面に形成されたクラツチ金物５６を備え
たデフロツク装置が、附設されている。 The left and right transmission output shafts 19A, 19 mentioned above
A differential gear 53 for the left and right rear wheels 2 is provided on one side of the transmission case 5 between B, and the auxiliary transmission shaft 18 has a transmission section output gear 54 integrally formed at the end of the shaft 18. By meshing with the large-diameter input gear 55 of the transmission device 53, it is operatively connected to the differential device 53. The differential gear 53 includes a clutch metal fitting 56 that is slidably spline-fitted to the transmission output shaft 19B on one side, and has a boss inner peripheral surface of the input gear 55 that rotates integrally with the differential housing of the differential gear 53. A claw 56 that can be engaged with a claw 55a formed in
A deflock device is provided with a clutch metal fitting 56 formed on the outer circumferential surface of the vehicle.
第２図において、５７は、主変速装置２０にお
ける前記油圧クラツチ３８，３９，４０に作動油
を供給するための油圧ポンプで前記入力軸１２を
ポンプ軸としてミツシヨンケース５外面上に設置
されたもの、５８は、差動装置５３反対側で副変
速軸１８を制動する内拡式のブレーキで車輌の走
行を停止させるためのものである。 In FIG. 2, 57 is a hydraulic pump for supplying hydraulic oil to the hydraulic clutches 38, 39, and 40 in the main transmission 20, and is installed on the outer surface of the transmission case 5 with the input shaft 12 as the pump shaft. Reference numeral 58 is an inwardly expanding brake that brakes the auxiliary transmission shaft 18 on the opposite side of the differential gear 53 to stop the vehicle from running.
この考案が奏する効果は次の通りである。 The effects of this idea are as follows.
左右の後輪２間で左右方向の一側に片寄せて
配置したミツシヨンケース５の他側外方位置に
エンジン４からミツシヨンケース５内へ入力伝
導する伝動軸７を機体前後方向に沿わせて設け
て、この伝動軸７からミツシヨンケース５の入
力軸１２に傘歯車伝動機構１３，１４を介し入
力伝導を行なわせると共に、機体前後方向に沿
う該伝動軸７をミツシヨンケース５背面上の
PTO伝動ケース２３内へ入力伝導する伝動軸
に構成したから、ミツシヨンケース５の側外方
に位置させた上記伝動軸７が傘歯車伝動機構１
３，１４を介しミツシヨンケース５内へと入力
伝導するための軸及びそのまま後方へと作業機
駆動力を伝達する軸として機能して、動力伝導
方向転換用の傘歯車伝動機構を１組のみ設けた
簡単な構造で機体後部方向へ作業機駆動力を取
出すことができ、また上記伝動軸７がミツシヨ
ンケース５の上方ではなく側外方に位置するこ
とからミツシヨンケース５背面上に設定する
PTO伝動ケース２３をミツシヨンケース５の
上下幅内で設置でき、ミツシヨンケース５と
PTO伝動ケース２３とを含めたケース部の重
心位置が低く該ケース部を車輌機枠に安定に支
持させうる。 A power transmission shaft 7 for transmitting input from the engine 4 into the transmission case 5 is installed at an outer position on the other side of the transmission case 5, which is arranged to one side in the left and right direction between the left and right rear wheels 2. Input is transmitted from the transmission shaft 7 to the input shaft 12 of the transmission case 5 via the bevel gear transmission mechanisms 13 and 14, and the transmission shaft 7 along the longitudinal direction of the machine is connected to the rear side of the transmission case 5. upper
Since the transmission shaft is configured to transmit input into the PTO transmission case 23, the transmission shaft 7 located outside the transmission case 5 is connected to the bevel gear transmission mechanism 1.
Only one set of bevel gear transmission mechanism is used to change the direction of power transmission, functioning as a shaft for transmitting the input into the transmission case 5 through the transmission case 3 and 14, and as a shaft for transmitting the driving force of the working machine to the rear. With this simple structure, the driving force of the working machine can be extracted toward the rear of the machine, and since the transmission shaft 7 is located outside the transmission case 5 rather than above, it is installed on the back of the transmission case 5. do
The PTO transmission case 23 can be installed within the vertical width of the transmission case 5, and the transmission case 23 can be installed within the vertical width of the transmission case 5.
The center of gravity of the case portion including the PTO transmission case 23 is low, allowing the case portion to be stably supported on the vehicle machine frame.
左右の後輪２間に位置するミツシヨンケース
５を左右方向の一側に片寄せて配置した上で、
エンジン４から走行系及びPTO系の動力を伝
える前記伝動軸７をミツシヨンケース５の他側
外方位置に機体前後方向に沿わせて配置したか
ら、該伝動軸７がミツシヨンケース５の側外方
に位置するものでありながら極力、機体横幅方
向の中央に近く配置されるものとなり、このた
め該伝動軸７へと動力を伝えるエンジン４を従
前通り機体横幅方向の略中央位置に配置でき、
重量物であるエンジン４についての安定した配
置が阻害されない。 After arranging the transmission case 5 located between the left and right rear wheels 2 to one side in the left and right direction,
The transmission shaft 7, which transmits power from the engine 4 to the traveling system and the PTO system, is disposed outside the other side of the transmission case 5 along the longitudinal direction of the aircraft. Although it is located outward, it is placed as close to the center in the width direction of the fuselage as possible, so that the engine 4 that transmits power to the transmission shaft 7 can be placed approximately at the center in the width direction of the fuselage as before. ,
Stable placement of the heavy engine 4 is not hindered.
第１図はこの考案の一実施例を装備した自走式
作業車の概略側面図、第２図は同作業車要部の一
部展開縦断正面図、第３図は同作業車要部の一部
縦断側面図、第４図は同作業車要部の模式的平面
図である。
２……後輪、４……エンジン、５……ミツシヨ
ンケース、６……伝動軸、７……伝動軸、１２…
…入力軸、１３，１４……傘歯車、１９Ａ，１９
Ｂ……ミツシヨン出力軸、２２……ケーシング、
２２ａ……カバー装着部、２３……PTO伝動ケ
ース、２４……入力軸、２５……PTO軸、２６
……カツプリング。
Fig. 1 is a schematic side view of a self-propelled working vehicle equipped with an embodiment of this invention, Fig. 2 is a partially exploded longitudinal sectional front view of the main parts of the working vehicle, and Fig. 3 is a schematic side view of the main parts of the working vehicle. A partially longitudinal side view and FIG. 4 are schematic plan views of the main parts of the working vehicle. 2... Rear wheel, 4... Engine, 5... Mission case, 6... Transmission shaft, 7... Transmission shaft, 12...
...Input shaft, 13, 14...Bevel gear, 19A, 19
B...Mission output shaft, 22...Casing,
22a...Cover attachment part, 23...PTO transmission case, 24...Input shaft, 25...PTO shaft, 26
...Katsupring.
Claims (1)
を、該左右の後輪２間に設置してある自走式作業
車において、前記ミツシヨンケース５を前記した
左右の後輪２間で左右方向の一側に片寄せて配置
して、エンジン４から該ミツシヨンケース５内へ
と入力伝導する伝動軸７を、前記ミツシヨンケー
ス５の他側外方位置に機体前後方向に沿わせて設
け、該伝動軸７と前記ミツシヨンケース５の入力
軸１２とを傘歯車伝動機構１３，１４により連動
連結すると共に、前記ミツシヨンケース５の背面
上に、機体後部方向に延出するPTO軸２５を装
備するPTO伝動ケース２３を、左右方向でみて
上記伝動軸７が位置する側にはみ出させて設置し
て、上記伝動軸７を該PTO伝動ケース２３内へ
入力伝導する伝動軸に構成したことを、特徴とし
てなる伝動装置。 Transmission case 5 that transmits power to the left and right rear wheels 2
In the self-propelled working vehicle installed between the left and right rear wheels 2, the transmission case 5 is placed to one side in the left and right direction between the left and right rear wheels 2, and the engine A transmission shaft 7 that transmits input from the transmission shaft 4 into the transmission case 5 is provided along the longitudinal direction of the machine at the other outer position of the transmission case 5. A PTO transmission case 23 is interlocked with the input shaft 12 by bevel gear transmission mechanisms 13 and 14, and is equipped with a PTO shaft 25 extending toward the rear of the aircraft body on the back surface of the transmission case 5. The transmission device is characterized in that the transmission shaft 7 is installed so as to protrude from the side where the transmission shaft 7 is located, and is configured as a transmission shaft that transmits input into the PTO transmission case 23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980105791U JPS628182Y2 (en) | 1980-07-25 | 1980-07-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980105791U JPS628182Y2 (en) | 1980-07-25 | 1980-07-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5729424U JPS5729424U (en) | 1982-02-16 |
| JPS628182Y2 true JPS628182Y2 (en) | 1987-02-25 |
Family
ID=29467149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980105791U Expired JPS628182Y2 (en) | 1980-07-25 | 1980-07-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS628182Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5031128U (en) * | 1973-07-18 | 1975-04-07 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5561019U (en) * | 1978-10-20 | 1980-04-25 |
-
1980
- 1980-07-25 JP JP1980105791U patent/JPS628182Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5031128U (en) * | 1973-07-18 | 1975-04-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5729424U (en) | 1982-02-16 |
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