JPH0251561B2 - - Google Patents
Info
- Publication number
- JPH0251561B2 JPH0251561B2 JP57029445A JP2944582A JPH0251561B2 JP H0251561 B2 JPH0251561 B2 JP H0251561B2 JP 57029445 A JP57029445 A JP 57029445A JP 2944582 A JP2944582 A JP 2944582A JP H0251561 B2 JPH0251561 B2 JP H0251561B2
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- traveling
- rotating shaft
- seedling planting
- case
- 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 - Lifetime
Links
Landscapes
- Transplanting Machines (AREA)
Description
【発明の詳細な説明】
本発明は、左右一対の前車輪を差動機構により
駆動自在に有する走行機体の後部に、苗植付部を
昇降操作自在に連設し、前記走行機体において、
前部に走行用ミツシヨンを配置すると共に、この
走行用ミツシヨンに回転軸により連動させた後輪
用ミツシヨンを後部に配置し、前記苗植付部への
動力取出軸を、前記走行用ミツシヨンから後方に
延出させると共に前記回転軸及び後輪用ミツシヨ
ンの上方に配置した乗用田植機の伝動構造に関
し、前輪に対する伝動構成をコンパクトでかつ安
価に構成できるようにすると共に、そのための構
成を有効利用することにより、苗植付部に対する
伝動構成を伝動がスムーズに行われると共に耐久
性に富むものにすることが前記回転軸を構造簡単
なものにしながら行えるようにすることを目的と
する。DETAILED DESCRIPTION OF THE INVENTION The present invention has a seedling planting section connected to the rear of a traveling machine which has a pair of left and right front wheels that can be freely driven by a differential mechanism, and in the traveling machine,
A traveling transmission is arranged at the front, and a rear wheel transmission linked to this traveling transmission by a rotating shaft is arranged at the rear, and the power extraction shaft for the seedling planting section is connected to the rear from the traveling transmission. Regarding the transmission structure of a riding rice transplanter, which is arranged above the rotary shaft and rear wheel transmission, the transmission structure for the front wheels can be configured compactly and inexpensively, and the structure can be effectively utilized. Therefore, it is an object of the present invention to make the transmission structure for the seedling planting part smooth and durable while simplifying the structure of the rotating shaft.
次に、本発明の実施例を図面に基いて説明す
る。 Next, embodiments of the present invention will be described based on the drawings.
第１図に示すように、左右一対の操向用駆動前
車輪１ａ，１ｂ及び駆動後車輪２ａ，２ｂを有す
る走行機体の後部に、苗植付部３を流体圧シリン
ダ４による上下揺動操作が可能なリンク機構５に
より昇降操作自在に連設すると共に、走行機体か
ら苗植付部３に回転動力を伝達するように構成
し、もつて、４条植え可能な乗用田植機を構成し
てある。 As shown in FIG. 1, a seedling planting section 3 is vertically swung by a hydraulic cylinder 4 at the rear of a traveling vehicle having a pair of left and right steering front driving wheels 1a, 1b and driving rear wheels 2a, 2b. The rice transplanters are connected to each other so that they can be raised and lowered by a link mechanism 5 that can be moved up and down, and are configured to transmit rotational power from the traveling body to the seedling planting section 3, thereby configuring a riding rice transplanter capable of planting four rows. be.
前後輪１ａ，１ｂ，２ａ，２ｂに対する伝動構
造を、第２図及び第３図に示すように構成してあ
る。 The transmission structure for the front and rear wheels 1a, 1b, 2a, 2b is constructed as shown in FIGS. 2 and 3.
すなわち、エンジン６、及び、前進２段、後進
１段に切換え可能な走行用ギアミツシヨンM1を、
前後に並列させた状態で機体の前部に配置すると
共に、エンジン６の出力を、高低速２段に切換え
可能な副変速装置を構成させてあると共に主クラ
ツチに兼用してあるダブルテンシヨンベルトクラ
ツチ７を介して前記走行用ミツシヨンM1に伝達
するように構成し、そして、左右前輪１ａ，１ｂ
を駆動する差動機構８を、そのケースとして前記
走行用ミツシヨンM1のケース９を兼用させるよ
うにこのケース９に走行用ギアミツシヨンM1の
後方に位置させて内装すると共に、前記差動機構
８の機体横方向の軸芯周りで回転する入力ギヤ８
ａを、走行用ギアミツシヨンM1の出力ギア１０
に咬合させてある。そして、前記左右後輪２ａ，
２ｂを各別に駆動停止させて機体操向させるため
の左右一対の操向クラツチ１１ａ，１１ｂを備え
させた後輪用ミツシヨンM2を機体後部に配置し、
この後輪用ミツシヨンM2と前記走行用ギアミツ
シヨンM1とを連動させるための回転軸１２を、
後輪用ミツシヨンM2が極力低レベルに位置する
よう後端側ほど低レベルに位置する傾斜状態で後
輪用ミツシヨンケース１３から前方に延出させる
と共に、前記回転軸１２の前端部に取付けたベベ
ルギア１４を、前記差動機構入力ギヤ８ａに咬合
させてある。後輪用ミツシヨンケース１３には、
第２図及び第３図に示すように、前記回転軸１２
を有すると共に操向クラツチ１１ａ，１１ｂを内
装する入力ケース部分１３ａ、この入力ケース部
分１３ａの左右端部から各別に機体後方に向か
い、機体後方側ほど低レベルに位置する後下り傾
斜で延出すると共に左右の後車輪２ａ，２ｂを各
別に支持する左右一対の出力ケース部分１３ｂ，
１３ｂを備えてある。すなわち、後輪用ミツシヨ
ンケース１３が機体前後方向視で門型形状にな
り、左右の出力ケース部分１３ｂ，１３ｂが機体
側面視で後下りケースになるようにしてある。 In other words, the engine 6 and the driving gear M 1 that can be switched to two forward speeds and one reverse speed,
A double tension belt is arranged in parallel at the front of the aircraft and constitutes an auxiliary transmission that can switch the output of the engine 6 between high and low speeds, and also serves as the main clutch. The transmission is transmitted to the traveling transmission M1 via the clutch 7, and the left and right front wheels 1a, 1b
The differential mechanism 8 for driving the gear mechanism 8 is located behind the traveling gear transmission M 1 and installed inside the case 9 so that the case 9 of the traveling transmission M 1 also serves as its case. The input gear 8 rotates around the horizontal axis of the aircraft.
a, the output gear 10 of the traveling gear transmission M1
It is interlocked with. And the left and right rear wheels 2a,
A rear wheel transmission M2 equipped with a pair of left and right steering clutches 11a and 11b for individually driving and stopping the wheels 2b and directing the aircraft is disposed at the rear of the aircraft.
A rotating shaft 12 for interlocking this rear wheel transmission M2 and the traveling gear transmission M1 ,
The rear wheel transmission M 2 is extended forward from the rear wheel transmission case 13 in an inclined state that is positioned at a lower level toward the rear end so that the rear wheel transmission M 2 is located at as low a level as possible, and is attached to the front end of the rotating shaft 12. A bevel gear 14 is engaged with the differential mechanism input gear 8a. In the rear wheel transmission case 13,
As shown in FIGS. 2 and 3, the rotating shaft 12
and an input case portion 13a which houses the steering clutches 11a and 11b, which extend downwardly from the left and right ends of the input case portion 13a toward the rear of the fuselage and are located at a lower level toward the rear of the fuselage. and a pair of left and right output case portions 13b that separately support the left and right rear wheels 2a, 2b.
13b is provided. That is, the rear wheel transmission case 13 has a gate-like shape when viewed from the front and back directions of the vehicle, and the left and right output case portions 13b, 13b are configured to form rearward downward cases when viewed from the side of the vehicle.
苗植付部３に対する伝動構造を構成するに、第
２図及び第３図に示すように、機体進行方向にお
ける苗植付間隔を変更するための苗植付部変速ミ
ツシヨンM3、苗植付部３の駆動負荷が設定値に
なると伝動が断たれる安全クラツチ１９、及び、
苗植付部クラツチ２０夫々を介して前記走行用ギ
アミツシヨンM1から動力取出しするように構成
した動力取出軸１５を、前記回転軸１２及び後輪
用ミツシヨンM2の上方に位置させた状態で前記
走行用ギアミツシヨンケース９から後方に延出さ
せ、前記動力取出軸１５の延出端部と、苗植付部
３の入力軸１６とを、苗植付部昇降を可能にする
ための自在継手１７を前後両端部に備えさせてあ
る回転軸１８により連動連結してある。 The transmission structure for the seedling planting section 3 includes, as shown in FIGS. 2 and 3, a seedling planting section transmission mechanism M 3 for changing the seedling planting interval in the direction of movement of the aircraft; a safety clutch 19 that disconnects the transmission when the drive load of the section 3 reaches a set value;
The power extraction shaft 15 configured to extract power from the traveling gear transmission M 1 through the seedling planting portion clutch 20 is positioned above the rotation shaft 12 and the rear wheel transmission M 2 . A shaft is made to extend rearward from the traveling gear transmission case 9, and connects the extending end of the power take-off shaft 15 and the input shaft 16 of the seedling planting section 3 to a movable shaft that allows the seedling planting section to be raised and lowered. Joints 17 are interlocked and connected by rotating shafts 18 provided at both front and rear ends.
以上要するに、本発明による乗用田植機の伝動
構造にあつては、目的達成のために、冒頭に記し
たものにおいて、前記差動機構８を前記走行用ミ
ツシヨンM1のケース９に内装し、
前記回転軸１２を後端側ほど低レベルに位置す
る傾斜状態で配置すると共に、前記後輪用ミツシ
ヨンM2のミツシヨンケース１３に、前記回転軸
１２を有する入力ケース部分１３ａ、及び、この
入力ケース部分１３ａの左右端部から各別に機体
後方に向かい、機体後方側ほど低レベルに位置す
る後下り傾斜で延出すると共に左右後車輪２ａ，
２ｂを各別に支持する左右一対の出力ケース部分
１３ｂ，１３ｂを備えさせ、
前記回転軸１２の前端部に取付けたベベルギア
１４を、前記差動機構８における機体横方向の回
転軸芯を有する入力ギア８ａに咬合させてある事
を特徴とする。そして、その作用及び効果は次の
とおりである。 In summary, in the transmission structure of the riding rice transplanter according to the present invention, in order to achieve the purpose described at the beginning, the differential mechanism 8 is installed inside the case 9 of the traveling transmission M1 , and the The rotary shaft 12 is arranged in an inclined state such that it is located at a lower level toward the rear end, and the transmission case 13 of the rear wheel transmission M2 includes an input case portion 13a having the rotary shaft 12, and this input case. The left and right rear wheels 2a extend from the left and right ends of the portion 13a toward the rear of the fuselage, and are located at a lower level toward the rear of the fuselage.
2b, and a bevel gear 14 attached to the front end of the rotating shaft 12 is used as an input gear in the differential mechanism 8 having a rotational axis in the transverse direction of the machine body. It is characterized by being interlocked with 8a. The functions and effects thereof are as follows.
つまり、差動機構８を、走行用ミツシヨンM1
のケース９に内装することにより、このケース９
を差動機構用ケースに兼用できると共に、差動機
構８及び走行用ミツシヨンM1を各別のケースに
内装するに比して狭いスペース内にまとめて配設
できるので、前輪用伝動構成を、ケース９の製作
面から安価に製作できると共に、コンパクトに構
成できるようになり、機体全体をコンパクトで取
扱いが行い易いものに構成できると共に、安価に
製作することを可能にできた。 In other words, the differential mechanism 8 is replaced by the traveling transmission M 1
By installing the case 9 inside, this case 9
can also be used as a case for the differential mechanism, and the differential mechanism 8 and driving transmission M1 can be placed together in a narrower space than if they were housed in separate cases. In terms of manufacturing, the case 9 can be manufactured at low cost and can be configured compactly, and the entire body can be configured to be compact and easy to handle, and can be manufactured at low cost.
又、前記動力取出軸１５と苗植付部３の入力軸
１６との間に、苗植付部３の昇降を可能にするた
めの自在継手１７が介装される関係上、この自在
継手１７の伝動性能や耐久性を考慮すると、か
つ、苗植付部３を作業用レベルで高さ調節できる
範囲を大にしようとすると、苗植付部３を作業用
レベルに下降された際の自在継手１７の屈曲度合
を小さく済ませられるよう動力取出軸１５の後端
側をできるだけ低レベルに配置しなければならな
い。そのためには、後輪用ミツシヨンM2が低レ
ベルに配置できるよう回転軸１２を後端側ほど低
レベルに位置する傾斜状態にする必要があるが、
差動機構８の入力ギア８ａに、回転軸１２の前端
部に取付けたベベルギア１４を咬合させることに
より、回転軸１２を後下り傾斜にするため構成に
するための構成に差動機構８を有効利用でき、回
転軸１２を自在継手を備えさせた従来のものに比
して構造簡単なものに済ませることが可能にな
る。そのうえ、後輪用ミツシヨンケース１３に入
力ケース部分１３ａと左右一対の出力ケース部分
１３ｂ，１３ｂとを備えさせると、後輪用ミツシ
ヨンケース１３が機体前後方向視で門形状になる
と共に出力ケース部分１３ｂが側面視で後下りケ
ースになり、後輪用ミツシヨンM2の大きさを所
要減速比等で決まる所望のものにしても、かつ、
走行機体のホイールベースを所望値にしても、そ
の割りには入力ケース部分１３ａが低レベルに、
かつ、機体前方側に位置し、回転軸１２の後下り
度合いを極力大にでき、かつ、苗植付部３の走行
機体への寄せ度合いを大にできる。したがつて、
動力取出軸１５を後輪用ミツシヨンM2の上方に
配置することにより、苗植付部３を非作業用高レ
ベルに上昇させた場合でも、動力取出し軸１５か
ら苗植付部３への伝動に支障が生じなくて苗植付
部３を駆動できるように配慮したものでありなが
ら、苗植付部３を作業用レベルにした状態での上
下調節を比較的大きくして作業が有利にできるよ
うになり、その割には、田植機全長を極力短かく
して操縦等が有利にできるようになつた。しか
も、苗植付部３への伝動がスムーズに行われるよ
うに、かつ、その伝動構成の使用寿命を永くする
ことが経済面を有利しながら可能になつた。 Furthermore, since a universal joint 17 is interposed between the power output shaft 15 and the input shaft 16 of the seedling planting section 3 to enable the raising and lowering of the seedling planting section 3, this universal joint 17 Considering the transmission performance and durability of the seedling planting section 3, and when trying to increase the range in which the height of the seedling planting section 3 can be adjusted at the working level, it is necessary to increase the height adjustment range when the seedling planting section 3 is lowered to the working level. In order to reduce the degree of bending of the joint 17, the rear end side of the power take-off shaft 15 must be placed at the lowest possible level. To do this, it is necessary to tilt the rotating shaft 12 so that it is located at a lower level toward the rear end so that the rear wheel transmission M2 can be placed at a lower level.
By engaging the input gear 8a of the differential mechanism 8 with the bevel gear 14 attached to the front end of the rotating shaft 12, the differential mechanism 8 is effective in a configuration for tilting the rotating shaft 12 backward downward. This makes it possible to simplify the structure of the rotary shaft 12 compared to the conventional rotary shaft 12 equipped with a universal joint. Furthermore, when the rear wheel transmission case 13 is provided with an input case portion 13a and a pair of left and right output case portions 13b, 13b, the rear wheel transmission case 13 becomes gate-shaped when viewed in the longitudinal direction of the aircraft, and the output case portion Even if the portion 13b becomes a rear descending case in side view, and the size of the rear wheel transmission M2 is set to a desired size determined by the required reduction ratio, etc., and
Even if the wheelbase of the traveling aircraft is set to the desired value, the input case portion 13a is at a relatively low level.
In addition, it is located on the front side of the machine body, so that the degree of backward descent of the rotating shaft 12 can be maximized, and the degree to which the seedling planting section 3 is brought closer to the traveling machine body can be increased. Therefore,
By arranging the power take-off shaft 15 above the rear wheel transmission M 2 , even when the seedling planting part 3 is raised to a high level for non-work, the power is transmitted from the power take-off shaft 15 to the seedling planting part 3. Although the seedling planting section 3 is designed to be able to be driven without causing any hindrance to the operation, the vertical adjustment is relatively large when the seedling planting section 3 is at the working level, making the work advantageous. In comparison, the overall length of the rice transplanter was made as short as possible, making it easier to maneuver. In addition, it has become possible to smoothly transmit power to the seedling planting section 3 and to prolong the service life of the power transmission structure, while being economically advantageous.
図面は本発明に係る乗用田植機の伝動構造の実
施例を示し、第１図は乗用田植機の側面図、第２
図は伝動系統図、第３図は伝動構造の側面図であ
る。
１ａ，１ｂ……前車輪、３……苗植付部、８…
…差動機構、８ａ……入力ギア、９……ケース、
１２……回転軸、１３……ミツシヨンケース、１
３ａ……入力ケース部分、１３ｂ……出力ケース
部分、１４……ベベルギア、１５……動力取出
軸、M1……走行用ミツシヨン、M2……後輪用ミ
ツシヨン。
The drawings show an embodiment of the transmission structure of the riding rice transplanter according to the present invention, and FIG. 1 is a side view of the riding rice transplanter, and FIG. 2 is a side view of the riding rice transplanter.
The figure is a transmission system diagram, and FIG. 3 is a side view of the transmission structure. 1a, 1b...Front wheel, 3...Seedling planting part, 8...
...Differential mechanism, 8a...Input gear, 9...Case,
12... Rotating shaft, 13... Mission case, 1
3a...Input case part, 13b...Output case part, 14...Bevel gear, 15...Power take-off shaft, M1 ...Driving transmission, M2 ...Rear wheel transmission.
Claims (1)
より駆動自在に有する走行機体の後部に、苗植付
部３を昇降操作自在に連設し、前記走行機体にお
いて、前部に走行用ミツシヨンM1を配置すると
共に、この走行用ミツシヨンM1に回転軸１２に
より連動させた後輪用ミツシヨンM2を後部に配
置し、前記苗植付部３への動力取出軸１５を、前
記走行用ミツシヨンM1から後方に延出させると
共に前記回転軸１２及び後輪用ミツシヨンM2の
上方に配置した乗用田植機の伝動構造であつて、 前記差動機構８を前記走行用ミツシヨンM1の
ケース９に内装し、 前記回転軸１２を後端側ほど低レベルに位置す
る傾斜状態で配置すると共に、前記後輪用ミツシ
ヨンM2のミツシヨンケース１３に、前記回転軸
１２を有する入力ケース部分１３ａ、及び、この
入力ケース部分１３ａの左右端部から各別に機体
後方に向かい、機体後方側ほど低レベルに位置す
る後下り傾斜で延出すると共に左右後車輪２ａ，
２ｂを各別に支持する左右一対の出力ケース部分
１３ｂ，１３ｂを備えさせ、 前記回転軸１２の前端部に取付けたベベルギア
１４を、前記差動機構８における機体横方向の回
転軸芯を有する入力ギヤ８ａに咬合させてある事
を特徴とする乗用田植機の伝動構造。[Scope of Claims] 1. A seedling planting section 3 is connected to the rear of a traveling machine which has a pair of left and right front wheels 1a, 1b which can be freely driven by a differential mechanism 8, and in the said traveling machine, A traveling transmission M 1 is disposed at the front, and a rear wheel transmission M 2 linked to the traveling transmission M 1 by a rotating shaft 12 is disposed at the rear, and a power extraction shaft for the seedling planting section 3 is provided. 15 extends rearward from the traveling transmission M 1 and is arranged above the rotating shaft 12 and the rear wheel transmission M 2 , the differential mechanism 8 is connected to the traveling transmission structure of the riding rice transplanter. The rotary shaft 12 is installed in the case 9 of the rear wheel transmission M1 , and the rotary shaft 12 is arranged in an inclined state such that it is located at a lower level toward the rear end. an input case portion 13a having a left and right end portion of the input case portion 13a toward the rear of the aircraft body, and extending with a downward slope at a lower level toward the rear of the aircraft body, and left and right rear wheels 2a,
A bevel gear 14 attached to the front end of the rotating shaft 12 is provided with a pair of left and right output case parts 13b, 13b that separately support the rotating shaft 2b, and the bevel gear 14 is connected to the input gear of the differential mechanism 8 having a rotation axis in the transverse direction of the machine body. A transmission structure of a riding rice transplanter characterized by being engaged with 8a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2944582A JPS58121711A (en) | 1982-02-24 | 1982-02-24 | Transmission structure of riding type rice planter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2944582A JPS58121711A (en) | 1982-02-24 | 1982-02-24 | Transmission structure of riding type rice planter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58121711A JPS58121711A (en) | 1983-07-20 |
| JPH0251561B2 true JPH0251561B2 (en) | 1990-11-07 |
Family
ID=12276316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2944582A Granted JPS58121711A (en) | 1982-02-24 | 1982-02-24 | Transmission structure of riding type rice planter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58121711A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0767335B2 (en) * | 1988-03-15 | 1995-07-26 | ヤンマー農機株式会社 | Rear wheel drive shaft structure for passenger rice transplanter |
| JP2536164B2 (en) * | 1989-07-17 | 1996-09-18 | 井関農機株式会社 | Rice transplanter |
| JP2517355Y2 (en) * | 1989-10-17 | 1996-11-20 | ヤンマー農機株式会社 | Arrangement structure of planted transmission shaft of passenger rice transplanter |
| JP2520531B2 (en) * | 1991-12-12 | 1996-07-31 | ヤンマー農機株式会社 | Power transmission structure in passenger rice transplanter |
| JPH0742642U (en) * | 1993-12-30 | 1995-08-11 | 株式会社アダチ | Medicine holder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5834974Y2 (en) * | 1977-07-08 | 1983-08-06 | 株式会社神崎高級工機製作所 | Power transmission device in rice transplanter |
-
1982
- 1982-02-24 JP JP2944582A patent/JPS58121711A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58121711A (en) | 1983-07-20 |
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