JPH0455171A - Agricultural working vehicle - Google Patents
Agricultural working vehicleInfo
- Publication number
- JPH0455171A JPH0455171A JP16227490A JP16227490A JPH0455171A JP H0455171 A JPH0455171 A JP H0455171A JP 16227490 A JP16227490 A JP 16227490A JP 16227490 A JP16227490 A JP 16227490A JP H0455171 A JPH0455171 A JP H0455171A
- Authority
- JP
- Japan
- Prior art keywords
- turning
- clutch
- control
- friction clutch
- state
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 16
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Transplanting Machines (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、エンジンからの動力を夫々摩擦クラッチを介
して左右車輪に動力を供給して走行する走行機体に、作
業装置を連結してある農作業車に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a working device connected to a traveling body that travels by supplying power from an engine to left and right wheels through friction clutches, respectively. Regarding agricultural vehicles.
上記農作業車において、従来では、例えば特開昭５９−
２１９５２９号公報に開示されているように、ハンドル
の切れ角に応じて左右駆動輪に対する駆動系に介装した
油圧クラッチをオンオフ制御する構成のものがあった。In the above-mentioned agricultural vehicle, conventionally, for example,
As disclosed in Japanese Patent No. 219529, there is a configuration in which a hydraulic clutch installed in a drive system for left and right drive wheels is controlled to be turned on or off depending on the turning angle of the steering wheel.
上記従来構造においては、走行ｒ１月よ常に上述したよ
うな制御が実行されるものであるが、般に農作業車では
機体の後部に例えばロータリ耕耘装置や苗植付装置等の
作業装置を連結して、機体の走行に伴って耕耘作業や田
植作業を行うものであるが、このような作業走行中にお
いて、上記制御が実行されると、条合わせや姿勢修正操
作時にも機体か振らっくことがあり、操縦が不安定にな
るおそれがあった。In the above-mentioned conventional structure, the above-mentioned control is always executed every time the vehicle travels, but agricultural vehicles generally have a working device such as a rotary plowing device or a seedling planting device connected to the rear of the vehicle. Plowing work and rice planting work are performed as the aircraft moves, but if the above control is executed during such work movement, the aircraft will not be shaken during row alignment or posture correction operations. There was a risk that the operation would become unstable.
本発明は、合理的構造改良により、上記不具合を解消す
る点に目的を有する。An object of the present invention is to solve the above-mentioned problems through rational structural improvements.
本発明の特徴構成は、冒頭に記載した農作業車において
、前記作業装置に対する動力断続用作業クラッチが切状
態であることを検出する作業状態検出手段と、操向用前
輪の操向切れ角を検出する角度検出手段と、前記作業状
態検出手段か検出状態になると、前記角度検出手段によ
り検出される切れ角に対応して、旋回内側の前記摩擦ク
ラッチを減速伝動状態に制御するクラッチ制御手段とを
備えてある点にある。The characteristic configuration of the present invention is that, in the agricultural vehicle described at the beginning, a working state detecting means detects that a power intermittent work clutch for the working device is in a disengaged state, and detects a steering turning angle of a front wheel for steering. and a clutch control means for controlling the friction clutch on the inner side of the turn to a deceleration transmission state in response to the turning angle detected by the angle detection means when the working state detection means enters the detection state. There is a point in being prepared.
作業装置を駆動しながら走行する場合には、上記クラッ
チ制御手段か作動せず、左右車輪か常に同一回転数で回
転駆動されるので、湿地等で片側の車輪かスリップした
場合等においても、片側のみに動力か集中されるといっ
たことかなく、直進走行性が確保される。When traveling while driving the work equipment, the clutch control means described above does not operate and the left and right wheels are always rotated at the same speed, so even if one wheel slips in wetlands etc. Straight running performance is ensured without the power being concentrated solely on the vehicle.
又、枕地等において作業クラッチか切状態となると、前
輪の操向切れ角に応じて旋回内側の摩擦クラッチが減速
制御されるので、内側車輪が旋回半径に応じて減速駆動
されることになる。Furthermore, when the working clutch is disengaged on a headland, etc., the friction clutch on the inside of the turn is controlled to decelerate according to the steering angle of the front wheels, so the inside wheel is decelerated and driven according to the turning radius. .
その結果、作業走行時には、振らつきのない安定した直
進走行を行うことかでき、しかも、枕地旋回時には泥押
しが少なく、枕地を荒らすことのない円滑な旋回走行を
行えるものとなった。 又、その切換え作動は自動で行
われるので操作」−の煩わしさかなく、作業上の操縦操
作性か向上するものどなった。As a result, it is possible to drive in a stable straight line without swaying while working, and when turning on a headland, there is less mud pushing and smooth turns can be made without disturbing the headland. Moreover, since the switching operation is performed automatically, there is no need for troublesome operation, and the operability during work is improved.
以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
第２図に示すように、乗用型走行機体の後部に作業装置
の一例としての苗植付装置（１）を連結して農作業車の
一例としての乗用型田植機を構成してある。As shown in FIG. 2, a seedling planting device (1), which is an example of a working device, is connected to the rear of a riding vehicle to form a riding rice transplanter, which is an example of an agricultural vehicle.
前記苗植付措置（１）は、後下り傾斜姿勢に設けられ、
一定ストロークで左右往復動する苗のせ台（２）、苗の
せ台（２）の下端から苗を一株づつ切り出して圃場に植
付ける植付爪（３）等を備えて成り、リフトシリンダ（
４）により、駆動昇降自在に機体に連結してある。 又
、前記苗のせ台（２）、植付爪（３）等は、機体面部に
搭載したエンジン（５）の動力を伝動軸（６）を介して
供給して駆動するように伝動系を構成し、この伝動系に
は、機体操縦部（７）に設けであるクラッチレバ−（８
）の操作により大切自在な植付クラッチ（９）〔作業ク
ラッチの一例〕を介装し、動力伝達を断続できるよう構
成してある。The seedling planting measure (1) is provided in a backward downward tilting position,
It consists of a seedling stand (2) that reciprocates from side to side with a constant stroke, a planting claw (3) that cuts out seedlings one by one from the lower end of the seedling stand (2) and plants them in the field, and a lift cylinder (
4), it is connected to the fuselage so that it can be driven up and down. Further, the seedling stand (2), the planting claw (3), etc. are configured with a transmission system so as to be driven by supplying power from an engine (5) mounted on the body surface via a transmission shaft (6). However, this transmission system includes a clutch lever (8) provided in the aircraft control section (7).
) A planting clutch (9) [an example of a working clutch] is installed, which can be used to connect or disconnect power transmission.
走行機体は、エンジン（５）の動力を走行ミッション（
１０）を介して左右前輪（１１）、 （１１）に供給す
るとともに、第１図にも示すように、伝動軸（１２）及
び夫々湿式多板摩擦クラッチ（１３Ｌ）、 （１３Ｒ）
を介して左右後輪（１４）、 （１４）に供給して駆動
走行するよう構成し、前記摩擦クラッチ（＋３Ｌ）。The traveling aircraft uses the power of the engine (5) to carry out the traveling mission (
10) to the left and right front wheels (11), (11), and as shown in FIG.
The friction clutch (+3L) is configured to be supplied to the left and right rear wheels (14), (14) for driving driving through the friction clutch (+3L).
（＋３Ｒ）は各々油圧ピストン（１５Ｌ）、 （１５Ｒ
）により押圧して入切するよう構成してある。 又、左
右前輪（１１）、 （１１）はステアリンクハンドル（
１Ｇ）の回動操作により操向揺動じて旋回走行するよう
構成してある。(+3R) are hydraulic pistons (15L), (15R
) is configured to be pressed to turn on and off. In addition, the left and right front wheels (11), (11) are connected to the steering link handle (
The vehicle is constructed so that it can turn and travel by turning the vehicle by turning the vehicle at a speed of 1G).
そして、前記植付クラッチ（９）が切状態であることを
検出する作業状態検出手段としての検知スイッチ（１７
）をクラッチレバ−（８）の近傍に設けるとともに、前
輪（１１）の操向切れ角を検出する角度検出手段として
のロータリエンコーダ（１８）を操向操作系に配設し、
前記検出スイッチ（１７）が検知状態になるとロータリ
エンコーダ（１８）により検出される切れ角に対応して
旋回内側の摩擦クラッチ（１３Ｌ）、 （１３Ｒ）を減
速伝動状態に制御するクラッチ制御手段としての制御装
置（１９）を備えてある。 詳述すると、第１図に示す
ように、各油圧ピストン（１５Ｌ）、 （１５Ｒ）に対
応する圧油路に夫々電磁制御弁（２ＯＬ）、 （２ＯＲ
）を介装するとともに、制御装置（１９）が夫々の電磁
制御弁（２ＯＬ）、 （２ＯＲ）に対してパルス電流を
供給して励磁駆動し摩擦クラッチ（１３１、）、 （１
３Ｒ）を制御するよう構成してある。 そして、制御装
置（Ｉ９）は、検知スイッチ（１７）の出力か非検知状
態であるときは、ロータリエンコーダ（１８）からの出
力に無関係に、所定時間大デユーティ比（例えは１００
％）の駆動電流を両電磁制御弁（２ＯＬ）。A detection switch (17) serves as a working state detection means for detecting that the planting clutch (9) is in a disengaged state.
) is provided near the clutch lever (8), and a rotary encoder (18) as an angle detection means for detecting the steering angle of the front wheels (11) is provided in the steering operation system,
Clutch control means for controlling the friction clutches (13L) and (13R) on the inner side of the turn to a deceleration transmission state in response to the turning angle detected by the rotary encoder (18) when the detection switch (17) is in the detection state. A control device (19) is provided. Specifically, as shown in Fig. 1, electromagnetic control valves (2OL) and (2OR) are installed in the pressure oil passages corresponding to the respective hydraulic pistons (15L) and (15R), respectively.
), and the control device (19) supplies pulse current to the respective electromagnetic control valves (2OL), (2OR) to excite and drive the friction clutches (131,), (1
3R). Then, when the output of the detection switch (17) is in a non-detected state, the control device (I9) operates at a high duty ratio (for example, 100
%) drive current for both solenoid control valves (2OL).
（２ＯＲ）に供給する。 又、検知スイッチ（１７）か
検知状態であると、ロータリエンコーダ（１８）により
検出さ第１たハシ１〜ル切れ各に対応してデ。(2OR). Further, when the detection switch (17) is in the detection state, the rotary encoder (18) detects the corresponding output corresponding to each of the first bar breaks.
−ティ比を歩測に変更させてパルス電流を旋回内側の電
磁制御弁（２ＯＬ）、 （２ＯＲ）に供給し、単位時間
当りのクラッヂ人時間か短くなって、結果的に旋回内側
の後輪（１４）の回転速度か小さくなるよう制ｉ卸する
。- The tee ratio is changed to pedometer and pulse current is supplied to the solenoid control valves (2OL) and (2OR) on the inside of the turn, and the clutch time per unit time is shortened, resulting in the rear wheels on the inside of the turn ( 14) Control the rotation speed so that it becomes smaller.
このようにして、枕地旋回の際には、ステアリングハン
ドル（１６）の操向切れ各に対応した左右車輪の相対回
転周速度差か生し、泥押しのない円滑な旋回走行を行え
ることになり、枕地を乱すことがなく、しかも、作業走
行中には左右車輪の相対周速度差か生じないのて直進性
が勝れ、条の位置合わせ等のハンドル操作によっても機
体か振らつくことかなく、植付条の直線性か向トする。In this way, when turning on a headland, the difference in relative rotational circumferential speed between the left and right wheels corresponding to each turn of the steering handle (16) is generated, allowing smooth turning without mud pushing. The machine does not disturb the headland, and there is no difference in the relative circumferential speed between the left and right wheels during work operation, which improves straight-line performance, and the machine does not sway when operating the handle such as adjusting the row position. The straightness of the planting rows will be affected.
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
図面は本発明に係る農作業車の実施例を示し、第１図は
制御系統図、第２図は田植機の全体側面図である。
（１）・・・・・・作業装置、（５）・・・・・・エン
ジン、（９）・・・・・・作業クラッチ、（１３Ｌ）、
（＋３Ｒ）・・・・・・摩擦クラッチ、（１１）、
（＋４）・・・・・・車輪、（１７）・・・・・検出手
段、（＋８）・・・・・・角度状態検出手段、（＋９）
・・・・・・制御手段。The drawings show an embodiment of the agricultural vehicle according to the present invention, with FIG. 1 being a control system diagram and FIG. 2 being an overall side view of the rice transplanter. (1)...Work device, (5)...Engine, (9)...Work clutch, (13L),
(+3R)...Friction clutch, (11),
(+4)...Wheel, (17)...Detection means, (+8)...Angle state detection means, (+9)
...control means.
Claims (1)
）、（１３Ｒ）を介して左右車輪（１４）、（１４）に
動力を供給して走行する走行機体に、作業装置（１）を
連結してある農作業車であって、前記作業装置（１）に
対する動力断続用作業クラッチ（９）が切状態であるこ
とを検出する作業状態検出手段（１７）と、操向用前輪
（１１）の操向切れ角を検出する角度検出手段（１８）
と、前記作業状態検出手段（１７）が検出状態になると
、前記角度検出手段（１８）により検出される切れ角に
対応して、旋回内側の前記摩擦クラッチ（１３Ｌ）、（
１３Ｒ）を減速伝動状態に制御するクラッチ制御手段（
１９）とを備えてある農作業車。The power from the engine (5) is transferred to each friction clutch (13L).
), (13R), the working device (1) is connected to a running body that runs by supplying power to the left and right wheels (14), (14), and the working device (1) ) for detecting that the power intermittent working clutch (9) is in the disengaged state, and an angle detecting means (18) for detecting the steering turning angle of the steering front wheels (11).
When the working state detecting means (17) enters the detecting state, the friction clutch (13L) on the inner side of the turn, (
13R) to a deceleration transmission state.
19) A farm vehicle equipped with:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2162274A JP2548825B2 (en) | 1990-06-20 | 1990-06-20 | Farm vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2162274A JP2548825B2 (en) | 1990-06-20 | 1990-06-20 | Farm vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0455171A true JPH0455171A (en) | 1992-02-21 |
| JP2548825B2 JP2548825B2 (en) | 1996-10-30 |
Family
ID=15751353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2162274A Expired - Lifetime JP2548825B2 (en) | 1990-06-20 | 1990-06-20 | Farm vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2548825B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4605647B2 (en) * | 2005-03-08 | 2011-01-05 | 株式会社クボタ | Mower |
| JP4605649B2 (en) * | 2005-03-22 | 2011-01-05 | 株式会社クボタ | Mower |
-
1990
- 1990-06-20 JP JP2162274A patent/JP2548825B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2548825B2 (en) | 1996-10-30 |
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