JP3720506B2 - Farm work vehicle - Google Patents

Farm work vehicle Download PDF

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Publication number
JP3720506B2
JP3720506B2 JP02008097A JP2008097A JP3720506B2 JP 3720506 B2 JP3720506 B2 JP 3720506B2 JP 02008097 A JP02008097 A JP 02008097A JP 2008097 A JP2008097 A JP 2008097A JP 3720506 B2 JP3720506 B2 JP 3720506B2
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inclination
agricultural
sensor
horizontal control
angular velocity
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JPH10191729A (en
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田 悟 岡
上 輝 政 井
山 実 小
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Yanma Agricultural Equipment Co Ltd
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Yanma Agricultural Equipment Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は例えば苗載台及び植付爪を備えて連続的に苗植作業を行う田植機、または耕耘作業機を取付けるトラクタなどの農作業車に関する。
【0002】
【発明が解決しようとする課題】
従来、田植機の植付部のローリング動作方向を角速度センサで検出してローリング部材を作動させ、ローリング部材の修正動作遅れを防ぎ乍ら、植付部のローリング動作を傾斜センサによって検出し、ローリング部材を自動制御して植付部の左右傾斜を修正することにより、実際の植付部のローリング動作に対してローリング部材の修正動作を殆んど時間差なく行わせる技術があるが、苗載台の左右側の苗載量の差などによって植付部の左右側の重量がアンバランスになり、ローリング部材の左右傾斜修正速度が異なることにより、植付部が傾いた状態となり、傾斜センサの出力だけで植付部の傾きを修正できなくなる不具合があった。
【0003】
【課題を解決するための手段】
請求項1に係る発明は、走行車に農作業機を左右傾斜自在に装設させると共に、農作業機のローリング動作を検出する角速度センサ及び傾斜センサと、前記各センサの検出結果に基づき農作業機の左右傾斜を修正するためのローリングシリンダとを設け農作業車において、前記農作業機の左側部と右側部の重量が不均衡でローリングシリンダの左傾修正速度と右傾修正速度が異なることを検出し、当該検出結果に基づき前記農作業機が自動水平制御動作中に傾いたときに前記農作業機の傾きが角速度センサの出力により自動的に修正されるように構成したもので、水平制御の目標値に対する農作業機の左右傾斜角度の偏差を小さくし得、水平制御の精度向上並びに安定性向上などを容易に図り得るものである。
【0004】
請求項2に係る発明は、ローリングシリンダの自動水平制御の不感帯よりも、自動水平制御動作中の傾き修正の判断基準値を大きくすると共に、傾斜センサ出力の一定時間内の平均値を求めて、これにより左傾修正速度と右傾修正速度の差異を検出するように構成したもので、走行車のローリングが激しくて加速度により傾斜センサ出力が不安定であっても、前記農作業機の傾きを安定良く検出し得るものである。
【0005】
請求項3に係る発明は、自動水平制御動作中に農作業機が傾いたときに角速度センサの出力反転基準値をオフセットして前記農作業機の傾きを修正するもので、傾斜センサ出力によって行えない農作業機の傾きを、角速度センサの利用により、特別に検出手段を設けることなく、修正し得、水平制御機能の向上並びに水平制御構造の簡略化などを容易に図り得るものである。
【0006】
【発明の実施の形態】
以下、本発明の実施例を図面に基づいて詳述する。図1は植付部のローリング制御回路図、図2は乗用田植機の側面図、図3は同平面図を示し、図中(1)は作業者が搭乗する走行車であり、エンジン(2)を車体フレーム(3)前部上方に搭載させ、ギヤ変速ケース(4)前方にフロントアクスルケース(5)を介して水田走行用前走行輪(6)を支持させると共に、前記ギヤ変速ケース(4)の後部にリヤアクスルケース(7)を連設し、前記リヤアクスルケース(7)に水田走行用後走行輪(8)を支持させる。そして前記エンジン(2)等を覆うボンネット(9)両側に予備苗載台(10)を取付けると共に、ステップ(11)を介して作業者が搭乗する車体カバー(12)によって前記ギヤ変速ケース(4)等を覆い、前記車体カバー(12)上部に運転席(13)を取付け、その運転席(13)の前方で前記ボンネット(9)後部に操向ハンドル(14)を設ける。
【0007】
また、図中(15)は6条植え用の苗載台(16)並びに複数の植付爪(17)などを具備する植付部であり、前高後低の合成樹脂製の前傾式苗載台(16)を下部レール(18)及びガイドレール(19)を介して植付ケース(20)に左右往復摺動自在に支持させると共に、一方向に等速回転させるロータリケース(21)を前記植付ケース(20)に支持させ、該ケース(21)の回転軸芯を中心に対称位置に一対の爪ケース(22)(22)を配設し、その爪ケース(22)(22)先端に植付爪(17)(17)を取付ける。また前記植付ケース(20)の前側にローリング支点軸(23)を介して支持フレーム(24)を設け、トップリンク(25)及びロワーリンク(26)を含むリンク機構(27)のクィックヒッチ(24a)を介して走行車(1)後側に支持フレーム(24)を連結させ、前記リンク機構(27)を介して植付部(15)を昇降させる油圧昇降シリンダ(28)をロワーリンク(26)に連結させ、前記前後走行輪(6)(8)を走行駆動して移動すると同時に、左右に往復摺動させる苗載台(16)から一株分の苗を植付爪(17)によって取出し、連続的に苗植え作業を行うように構成する。
【0008】
また、図中(29)は主変速レバー、(30)は植付昇降兼作業走行変速用副変速レバー、(31)は植付け感度調節レバー、(32)は主クラッチペダル、(33)(33)は左右ブレーキペダル、(34)は2条分均平用センターフロート、(35)は2条分均平用サイドフロート、(36)は6条用の側条施肥機である。
【0009】
さらに、図4、図5に示す如く、左右一対の四角筒形の前記車体フレーム(3)(3)前部にエンジン(2)を搭載し、前車軸(37)(37)を介して左右前走行輪(6)(6)を軸支させるフロントアクスルケース(5)をエンジン(2)後方の車体フレーム(3)(3)下面に取付け、フロントアクスルケース(5)後方の左右車体フレーム(3)(3)間に無段ベルト変速ケース(38)を設け、無段変速ケース(38)後方の左右車体フレーム(3)(3)間にギヤ変速ケース(4)を設けると共に、後車軸(39)(39)を介して左右後走行輪(8)(8)を軸支させるリヤアクスルケース(7)を左右車体フレーム(3)(3)後端下面に固設させ、エンジン(2)出力を各変速ケース(38)(4)を介して各アクスルケース(5)(7)に走行駆動力として伝達させ、前後走行輪(6)(8)を駆動するように構成している。
【0010】
また、左右車体フレーム(3)(3)後端部上面に左右支柱(40)(40)を立設させ、左右支柱(40)(40)上端を水平フレーム(41)によって連結させ、支柱(40)と水平フレーム(41)を一体固定させて正面視門形に形成する。そして、車体フレーム(3)中間のブレーキペダル受軸(42)と、前記水平フレーム(41)中間の間に、前低後高に傾斜させるサブフレーム(43)(43)を架設させると共に、サブフレーム(43)(43)間に昇降シリンダ(28)を取付け、またトップリンク(25)及びロワーリンク(26)で形成するリンク機構(27)を各フレーム(3)(41)に支軸(44)(45)を介して取付け、昇降シリンダ(28)によってリンク機構(27)を揺動させて植付部(15)を昇降させるように構成している。
【0011】
さらに、図6、図7に示す如く、前記支持フレーム(24)にステー(46)を一体固定させ、該ステー(46)に支軸(47)を介して油圧ローリングシリンダ(48)中間を回転自在に取付けると共に、左右の植付ケース(20)(20)に下端を固定させる左右苗台支柱(49)(49)を立設させ、ガイドレール(19)に摺動自在に係入させる摺動子(50)(50)を前記支柱(49)(49)上端に取付け、また左右支柱(49)(49)を連杆(51)によって連結させ、ローリングシリンダ(48)のピストン(52)両側を連杆(51)にブラケット(53)(53)を介して連結させ、図7のように、前記ローリングシリンダ(48)制御によってローリング支点軸(23)を中心に植付部(15)を左右に傾動させるように構成している。
【0012】
さらに、図1に示す如く、前記副変速レバー(30)の植付部(15)下降操作によってオンになる下降ポジションスイッチ(54)と、前記昇降シリンダ(28)を停止維持する油圧ストップレバー(55)の停止操作によってオンになるストップスイッチ(56)と、植付ケース(20)に設けて植付部(15)の左右傾斜を検出する振子型傾斜センサ(57)と、走行車(1)に設けて走行車(1)の左右傾斜速度(傾斜動作の速度)を検出するジャイロ型角速度センサ(58)と、傾斜センサ(57)の制御の目標値(水平出力基準値)を手動調節で設定する左右傾き調整ボリューム(59)と、角速度センサ(58)の感度を設定する加速度設定ボリューム(60)と、油圧ローリングバルブ(61)を切換えてローリングシリンダ(48)を作動させる電磁型左傾及び右傾ソレノイド(62)(63)を、マイクロコンピュータで形成するローリング制御用の傾斜コントローラ(64)に接続させ、前記各センサ(57)(58)の検出結果に基づき、コントローラ(64)からの左上げまたは右上げローリング駆動パルス信号出力により各ソレノイド(62)(63)を作動させ、ローリングシリンダ(48)をパルス駆動によって作動させて植付部(15)の左右傾斜を修正するもので、左右の後走行輪(8)(8)が転動する圃場耕盤の凹凸によって走行車(1)が左右に傾動したとき、植付部(15)の左右傾斜角度を傾斜センサ(57)によって検出させると共に、走行車(1)の左右傾斜加速度を角速度センサ(58)によって検出させ、植付部(15)の水平制御を自動的に行わせるように構成している。
【0013】
そして、図8のフローチャートに示す如く、植付部(15)の自動水平制御が行われるもので、角速度センサ(58)の入力により該センサ(58)の入力値が3ヘルツ以上と判断されたとき、例えば路上走行により後走行輪(8)のラグによる振動を検出したとき、水平制御が一時的に自動停止されると共に、副変速レバー(30)の植付部(15)下げ操作、並びに油圧ストップレバー(55)の油圧ストップ操作が行われたとき、例えば路上走行時、または苗載台(16)を左右端部に移動させる植付け開始時、水平制御が一時的に自動停止されるもので、不必要な水平制御を禁止するように構成している。
【0014】
さらに、前記傾斜センサ(57)の入力により、図10の傾斜センサ(57)出力線図にも示す如く、傾斜センサ(57)出力の一定時間(T1)内の平均値を演算し、その平均値が修正基準値よりも大きいと、図11の角速度センサ(58)出力線図にも示す如く、角速度センサ(58)の出力反転基準値を0点からA点またはB点に修正し、図9のフローチャートに示す水平制御動作を自動的に行わせるもので、苗載台(16)の左右苗量の差などにより、植付部(15)が左右重量アンバランスになり、ローリングシリンダ(48)の左右傾斜修正速度が異なり、植付部(15)を自動水平制御中に植付部(15)が左右に傾いたとき、前記植付部(15)の傾きが角速度センサ(58)の出力により修正される修正制御を開始するように構成している。
【0015】
また、図10に示す如く、傾斜センサ(57)の一定時間(T1)内の平均値が水平制御の不感帯幅内になったとき、図11のようにA点またはB点にオフセットされた角速度センサ(58)の基準値を元の0点に戻し、該センサ(58)による修正制御を終了するもので、図10に示す如く、水平制御の目標値を中心に設定する水平制御の不感帯よりも、角速度センサ(58)の出力反転基準値をオフセットする修正基準値を大きく設定し、その修正基準値と、傾斜センサ(57)の一定時間(T1)内の平均値とを対比し、平均値が大のときに角速度センサ(58)の出力反転基準値をオフセットする傾きの修正を開始し、前記平均値が小になったときにその修正を終了するように構成している。
【0016】
上記から明らかなように、走行車(1)に農作業機である植付部(15)を左右傾斜自在に装設させると共に、植付部(15)のローリング動作を検出する角速度センサ(58)及び傾斜センサ(57)と、前記各センサ(57)(58)の検出結果に基づき植付部(15)の左右傾斜を修正するローリング部材であるローリングシリンダ(48)を設ける農作業車において、前記植付部(15)の左側部と右側部の重量が不均衡でローリングシリンダ(48)の左傾修正速度と右傾修正速度が異なることによって植付部(15)が自動水平制御動作中に傾いたときに自動的に修正するもので、水平制御の目標値に対する植付部(15)の左右傾斜角度の偏差を小さくすることができ、水平制御の精度向上並びに安定性向上などを図れる。また、ローリングシリンダ(48)の自動水平制御の不感帯よりも、自動水平制御動作中の傾き修正の判断基準値を大きくすると共に、傾斜センサ(57)出力の平均値に基づき自動水平制御動作中の植付部(15)の傾きを検出するもので、走行車(1)のローリングが激しくて加速度により傾斜センサ(57)出力が不安定であっても、前記植付部(15)の傾きを安定良く検出できると共に、自動水平制御動作中に植付部(15)が傾いたときに角速度センサ(58)の出力反転基準値をオフセットして前記植付部(15)の傾きを修正するもので、傾斜センサ(57)出力によって行えない植付部(15)の傾きを、角速度センサ(58)の利用により、特別に検出手段を設けることなく、修正でき、水平制御機能の向上並びに水平制御構造の簡略化などを図れるように構成している。
【0017】
また、図9のフローチャートに示す如く、傾斜センサ(57)及び角速度センサ(58)を用いた植付部(15)の水平制御動作が自動的に行われるもので、角速度センサ(58)入力により走行車(1)の左傾または右傾を検出したとき、角速度センサ(58)の検出結果に基づきローリングバルブ(61)を切換えてローリングシリンダ(48)を作動させ、左傾または右傾の修正を開始させると共に、傾斜センサ(57)入力による植付部(15)の左傾または右傾を検出し、傾斜センサ(57)の検出結果に基づきローリングシリンダ(48)を作動させ、植付部(15)の左上げまたは右上げ動作により、植付部(15)の左右傾きを修正するものである。
【0018】
【発明の効果】
以上実施例から明らかなように、請求項1に係る発明は、走行車(1)に農作業機(15)を左右傾斜自在に装設させると共に、農作業機(15)のローリング動作を検出する角速度センサ(58)及び傾斜センサ(57)と、前記各センサ(57)(58)の検出結果に基づき農作業機(15)の左右傾斜を修正するためのローリングシリンダ(48)を設け農作業車において、前記農作業機(15)の左側部と右側部の重量が不均衡でローリングシリンダ(48)の左傾修正速度と右傾修正速度が異なることを検出し、当該検出結果に基づき前記農作業機(15)が自動水平制御動作中に傾いたときに前記農作業機(15)の傾きが角速度センサ(58)の出力により自動的に修正されるように構成したもので、水平制御の目標値に対する農作業機の左右傾斜角度の偏差を小さくすることができ、水平制御の精度向上並びに安定性向上などを容易に図ることができるものである。
【0019】
請求項2に係る発明は、ローリングシリンダ(48)の自動水平制御の不感帯よりも、自動水平制御動作中の傾き修正の判断基準値を大きくすると共に、傾斜センサ(57)出力の一定時間内の平均値を求めて、これにより左傾修正速度と右傾修正速度の差異を検出するように構成したもので、走行車(1)のローリングが激しくて加速度により傾斜センサ(57)出力が不安定であっても、前記農作業機(15)の傾きを安定良く検出できるものである。
【0020】
請求項3に係る発明は、自動水平制御動作中に農作業機(15)が傾いたときに角速度センサ(58)の出力反転基準値をオフセットして前記農作業機(15)の傾きを修正するもので、傾斜センサ(57)出力によって行えない農作業機(15)の傾きを、角速度センサ(58)の利用により、特別に検出手段を設けることなく、修正でき、水平制御機能の向上並びに水平制御構造の簡略化などを容易に図ることができるものである。
【図面の簡単な説明】
【図1】植付部のローリング制御回路図。
【図2】全体の側面図。
【図3】同平面図。
【図4】走行車の側面図。
【図5】同平面図。
【図6】植付部の側面図。
【図7】同正面図。
【図8】水平制御のフローチャート。
【図9】水平制御動作のフローチャート。
【図10】傾斜センサ出力線図。
【図11】角速度センサ出力線図。
【符号の説明】
(1)走行車
(15)植付部(農作業機)
(48)ローリングシリンダ(ローリング部材)
(57)傾斜センサ
(58)角速度センサ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a farm vehicle such as a rice planting machine or a tractor to which a tilling work machine is attached, for example, which includes a seedling stage and a planting claw and performs seedling planting work continuously.
[0002]
[Problems to be solved by the invention]
Conventionally, the rolling operation direction of the planting part of the rice transplanter is detected by the angular velocity sensor to operate the rolling member, and the rolling operation of the planting part is detected by the inclination sensor while preventing the delay in the correction operation of the rolling member. There is a technology that automatically corrects the horizontal inclination of the planting part by automatically controlling the member, so that the rolling member correction operation can be performed with little time difference from the actual rolling part rolling operation. The weight on the left and right sides of the planting part becomes unbalanced due to the difference in the amount of seedlings on the left and right sides of the plant, and the planting part is tilted due to the difference in the right and left tilt correction speed of the rolling member. There was a problem that the inclination of the planting part could not be corrected.
[0003]
[Means for Solving the Problems]
According to the first aspect of the present invention , the agricultural machine is mounted on the traveling vehicle so that the agricultural machine can tilt right and left, the angular velocity sensor and the inclination sensor that detect the rolling operation of the agricultural machine, and the left and right of the agricultural machine based on the detection results of the sensors. in the rolling cylinder and the provided with agricultural vehicles to correct the inclination, detecting a left-leaning corrected speed and right-inclined corrected speed of the left portion and right portion of the weight imbalance in the rolling cylinder of the agricultural machine are different, the detection in which the inclination of the agricultural machine is configured to so that is automatically corrected by the output of the angular velocity sensor when the basis of the result agricultural machine is tilted during the automatic horizontal control operation, the agricultural machine with respect to the target value of the horizontal control The deviation of the left / right inclination angle can be reduced, and the accuracy and stability of the horizontal control can be easily improved.
[0004]
In the invention according to claim 2, the judgment reference value for the inclination correction during the automatic horizontal control operation is made larger than the dead zone of the automatic horizontal control of the rolling cylinder , and the average value of the output of the inclination sensor within a certain time is obtained. Thus, it is configured to detect the difference between the left tilt correction speed and the right tilt correction speed, and even if the traveling vehicle rolling is intense and the tilt sensor output is unstable due to acceleration, the tilt of the farm work machine can be stabilized stably. It can be detected.
[0005]
The invention according to claim 3 corrects the inclination of the agricultural machine by offsetting the output reversal reference value of the angular velocity sensor when the agricultural machine is inclined during the automatic horizontal control operation, and cannot be performed by the inclination sensor output. The inclination of the machine can be corrected by using an angular velocity sensor without providing any special detection means, and the horizontal control function can be improved and the horizontal control structure can be easily simplified.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a rolling control circuit diagram of a planting part, FIG. 2 is a side view of a riding rice transplanter, FIG. 3 is a plan view thereof, (1) is a traveling vehicle on which an operator is boarded, and an engine (2 ) Is mounted above the front part of the vehicle body frame (3), the front traveling wheel (6) for paddy field traveling is supported via the front axle case (5) in front of the gear transmission case (4), and the gear transmission case ( 4) A rear axle case (7) is continuously provided at the rear portion, and the rear axle case (7) supports the rear traveling wheels (8) for paddy field traveling. The spare seedling stage (10) is attached to both sides of the bonnet (9) that covers the engine (2) and the like, and the gear shift case (4) is mounted by a vehicle body cover (12) on which an operator rides through step (11). ) And the like, and a driver's seat (13) is attached to the upper part of the vehicle body cover (12), and a steering handle (14) is provided at the rear of the bonnet (9) in front of the driver's seat (13).
[0007]
Further, in the figure, (15) is a planting part having a seedling mount (16) for six-row planting and a plurality of planting claws (17), etc. A rotary case (21) for supporting the seedling stage (16) on the planting case (20) through the lower rail (18) and the guide rail (19) so as to be slidable to the left and right and rotating at a constant speed in one direction. Is supported by the planting case (20), and a pair of claw cases (22) and (22) are arranged at symmetrical positions around the rotational axis of the case (21). The claw cases (22) and (22) ) Attach the planting claws (17) and (17) to the tip. Further, a support frame (24) is provided on the front side of the planting case (20) via a rolling fulcrum shaft (23), and a quick hitch (27) of a link mechanism (27) including a top link (25) and a lower link (26) ( 24a) connects the support frame (24) to the rear side of the traveling vehicle (1), and lowers the hydraulic lifting cylinder (28) for raising and lowering the planting part (15) via the link mechanism (27). 26), and the front and rear traveling wheels (6) and (8) are driven to move, and at the same time, a seedling for a single plant is planted from a seedling stand (16) that reciprocally slides left and right. And is configured to continuously perform seedling planting work.
[0008]
In the figure, (29) is the main transmission lever, (30) is the planting lifting / working transmission subtransmission lever, (31) is the planting sensitivity adjustment lever, (32) is the main clutch pedal, and (33) (33). ) Is a left and right brake pedal, (34) is a center float for leveling two strips, (35) is a side float for leveling two strips, and (36) is a side fertilizer for six strips.
[0009]
Further, as shown in FIGS. 4 and 5, an engine (2) is mounted on the front part of the pair of left and right square cylindrical body frames (3) and (3), and left and right via the front axles (37) and (37). A front axle case (5) for pivotally supporting the front traveling wheels (6) (6) is attached to the lower surface of the body frame (3) (3) behind the engine (2), and the left and right body frames (5) behind the front axle case (5) 3) A continuously variable belt transmission case (38) is provided between (3), a gear transmission case (4) is provided between the left and right vehicle body frames (3) and (3) behind the continuously variable transmission case (38), and the rear axle. (39) A rear axle case (7) for pivotally supporting the left and right rear traveling wheels (8) and (8) is fixed to the lower surfaces of the rear ends of the left and right body frames (3) and (3) through the engine (2). The output is supplied to each axle case via each shift case (38) (4). Scan (5) (7) is transmitted as driving force, and configured to drive the front and rear running wheel (6) (8).
[0010]
Also, left and right columns (40) and (40) are erected on the upper surfaces of the rear end portions of the left and right body frames (3) and (3), and the upper ends of the left and right columns (40) and (40) are connected by the horizontal frame (41). 40) and the horizontal frame (41) are integrally fixed to form a frontal portal shape. And, a sub-frame (43) (43) inclined to the front low and rear high is installed between the brake pedal bearing shaft (42) in the middle of the vehicle body frame (3) and the middle of the horizontal frame (41). A lifting cylinder (28) is attached between the frames (43) and (43), and a link mechanism (27) formed by a top link (25) and a lower link (26) is attached to each frame (3) and (41) as a support shaft ( 44) and 45), and the planting part (15) is moved up and down by swinging the link mechanism (27) by the lifting cylinder (28).
[0011]
Further, as shown in FIGS. 6 and 7, a stay (46) is integrally fixed to the support frame (24), and the middle of the hydraulic rolling cylinder (48) is rotated to the stay (46) via a support shaft (47). The left and right seedling support columns (49) and (49) that are installed freely and that fix the lower ends of the left and right planting cases (20) and (20) are erected and slidably engaged with the guide rail (19). The moving element (50) (50) is attached to the upper end of the column (49) (49), and the left and right columns (49) (49) are connected by the linkage (51), and the piston (52) of the rolling cylinder (48) is connected. Both sides are connected to the linkage (51) via brackets (53) (53), and as shown in FIG. 7, the planting portion (15) is centered on the rolling fulcrum shaft (23) by the rolling cylinder (48) control. Tilt left or right It is configured so as.
[0012]
Further, as shown in FIG. 1, a lowering position switch (54) that is turned on by a lowering operation of the planting portion (15) of the auxiliary transmission lever (30), and a hydraulic stop lever that stops and maintains the elevating cylinder (28). 55) a stop switch (56) that is turned on by a stop operation, a pendulum type inclination sensor (57) that is provided in the planting case (20) and detects the right / left tilt of the planting part (15), and a traveling vehicle (1 ) To manually adjust the gyro-type angular velocity sensor (58) for detecting the left-right inclination speed (inclination speed) of the traveling vehicle (1) and the control target value (horizontal output reference value) of the inclination sensor (57). The left and right tilt adjustment volume (59) set in step 1, the acceleration setting volume (60) for setting the sensitivity of the angular velocity sensor (58), and the hydraulic rolling valve (61) are switched to change the rolling cylinder. Electromagnetic left-tilt and right-tilt solenoids (62) (63) that actuate (48) are connected to a tilt controller (64) for rolling control formed by a microcomputer, and the detection results of the sensors (57) (58) Based on the above, the solenoid (62) (63) is operated by the left-up or right-up rolling drive pulse signal output from the controller (64), and the rolling cylinder (48) is operated by the pulse drive to plant the planting part (15). When the traveling vehicle (1) tilts left and right due to the unevenness of the field cultivator on which the left and right rear traveling wheels (8) and (8) roll, the right and left of the planting part (15) are corrected. The inclination angle is detected by the inclination sensor (57), and the lateral inclination acceleration of the traveling vehicle (1) is detected by the angular velocity sensor (58). It is configured so as to automatically perform the horizontal control.
[0013]
Then, as shown in the flowchart of FIG. 8, automatic horizontal control of the planting unit (15) is performed, and the input value of the sensor (58) is determined to be 3 Hz or more by the input of the angular velocity sensor (58). When, for example, vibrations due to the lugs of the rear traveling wheels (8) are detected by traveling on the road, the horizontal control is temporarily automatically stopped and the planting portion (15) of the auxiliary transmission lever (30) is lowered, and When the hydraulic stop operation of the hydraulic stop lever (55) is performed, for example, when traveling on the road or when planting is started to move the seedling platform (16) to the left and right ends, horizontal control is temporarily automatically stopped Therefore, unnecessary horizontal control is prohibited.
[0014]
Further, by the input of the tilt sensor (57), as shown in the tilt sensor (57) output diagram of FIG. 10, the average value of the tilt sensor (57) output within a predetermined time (T1) is calculated, and the average is calculated. When the value is larger than the correction reference value, the output reversal reference value of the angular velocity sensor (58) is corrected from the 0 point to the A point or the B point as shown in the output diagram of the angular velocity sensor (58) in FIG. 9. The horizontal control operation shown in the flowchart of FIG. 9 is automatically performed, and the planting part (15) becomes unbalanced in the left and right weight due to the difference in the right and left seedling amount of the seedling stage (16), and the rolling cylinder (48 When the planting part (15) tilts to the left and right during the automatic horizontal control of the planting part (15), the inclination of the planting part (15) is different from that of the angular velocity sensor (58). The correction control corrected by the output is started. It is configured to.
[0015]
Also, as shown in FIG. 10, when the average value of the tilt sensor (57) within a certain time (T1) falls within the dead zone width of the horizontal control, the angular velocity offset to the point A or B as shown in FIG. The reference value of the sensor (58) is returned to the original zero point, and the correction control by the sensor (58) is terminated. As shown in FIG. 10, from the dead zone of the horizontal control that is set around the target value of the horizontal control. Also, the correction reference value for offsetting the output reversal reference value of the angular velocity sensor (58) is set large, and the correction reference value is compared with the average value within a predetermined time (T1) of the tilt sensor (57), and the average When the value is large, correction of the inclination for offsetting the output reversal reference value of the angular velocity sensor (58) is started, and the correction is ended when the average value becomes small.
[0016]
As is apparent from the above, the traveling speed of the planting machine (1) is set so that the planting part (15), which is an agricultural working machine, can be tilted left and right, and the rolling speed of the planting part (15) is detected. And a farm vehicle provided with a tilting sensor (57) and a rolling cylinder (48) which is a rolling member for correcting the right / left tilt of the planting part (15) based on the detection results of the sensors (57) and (58), The planting part (15) is tilted during the automatic horizontal control operation because the weight of the left and right side parts of the planting part (15) is unbalanced and the left tilt correction speed and the right tilt correction speed of the rolling cylinder (48) are different. It is automatically corrected from time to time, and the deviation of the left / right inclination angle of the planting part (15) with respect to the horizontal control target value can be reduced, so that the accuracy and stability of the horizontal control can be improved. Further, the reference value for inclination correction during the automatic horizontal control operation is made larger than the dead zone of the automatic horizontal control of the rolling cylinder (48), and the automatic horizontal control operation is being performed based on the average value of the inclination sensor (57) output. It detects the inclination of the planting part (15). Even if the rolling of the traveling vehicle (1) is intense and the output of the inclination sensor (57) is unstable due to acceleration, the inclination of the planting part (15) is detected. In addition to being able to detect stably, the inclination of the planting part (15) is corrected by offsetting the output reversal reference value of the angular velocity sensor (58) when the planting part (15) is tilted during the automatic horizontal control operation. Thus, the inclination of the planting part (15) which cannot be performed by the output of the inclination sensor (57) can be corrected by using the angular velocity sensor (58) without providing any special detection means, thereby improving the horizontal control function and leveling. It is configured so as attained such as simplification of the control structure.
[0017]
Further, as shown in the flowchart of FIG. 9, the horizontal control operation of the planting part (15) using the inclination sensor (57) and the angular velocity sensor (58) is automatically performed, and by the input of the angular velocity sensor (58). When the left or right inclination of the traveling vehicle (1) is detected, the rolling valve (61) is switched based on the detection result of the angular velocity sensor (58) to operate the rolling cylinder (48), and correction of the left or right inclination is started. , The left or right inclination of the planting part (15) by the input of the inclination sensor (57) is detected, the rolling cylinder (48) is operated based on the detection result of the inclination sensor (57), and the planting part (15) is raised to the left Or the right-and-left inclination of the planting part (15) is corrected by a right-up operation.
[0018]
【The invention's effect】
As is apparent from the above embodiments, the invention according to claim 1 is the angular velocity for detecting the rolling operation of the farm work machine (15) while mounting the farm work machine (15) on the traveling vehicle (1) so as to be tiltable left and right. sensor (58) and an inclination sensor (57), the sensors (57) (58) of the detection result based agricultural machine (15) lateral inclination rolling cylinder for correcting (48) and a provided a farm vehicle The left and right sides of the agricultural machine (15) are unbalanced and the left tilt correction speed and the right tilt correction speed of the rolling cylinder (48) are different from each other. Based on the detection result, the agricultural machine (15 ) is intended to tilt of the agricultural machine (15) is configured to so that is automatically corrected by the output of the angular velocity sensor (58) when tilted during the automatic horizontal control operation, the target value of the horizontal control Deviation of lateral inclination angle of the agricultural machine which can be reduced, in which the like can be achieved accuracy and stability improvement of horizontal control easier.
[0019]
In the invention according to claim 2, the judgment reference value for tilt correction during the automatic horizontal control operation is made larger than the dead zone of the automatic horizontal control of the rolling cylinder (48), and the output of the tilt sensor (57) is within a certain time. The average value of the vehicle is obtained, and thereby the difference between the left tilt correction speed and the right tilt correction speed is detected. The rolling vehicle (1) is so rolling that the output of the tilt sensor (57) is unstable due to acceleration. Even if it exists, the inclination of the said agricultural machine (15) can be detected stably.
[0020]
The invention according to claim 3 corrects the inclination of the agricultural machine (15) by offsetting the output reversal reference value of the angular velocity sensor (58) when the agricultural machine (15) is inclined during the automatic horizontal control operation. Thus, the inclination of the agricultural machine (15), which cannot be performed by the output of the inclination sensor (57), can be corrected by using the angular velocity sensor (58) without any special detection means, and the horizontal control function can be improved and the horizontal control structure can be provided. This simplifies the process.
[Brief description of the drawings]
FIG. 1 is a rolling control circuit diagram of a planting unit.
FIG. 2 is an overall side view.
FIG. 3 is a plan view of the same.
FIG. 4 is a side view of a traveling vehicle.
FIG. 5 is a plan view of the same.
FIG. 6 is a side view of a planting part.
FIG. 7 is a front view of the same.
FIG. 8 is a flowchart of horizontal control.
FIG. 9 is a flowchart of a horizontal control operation.
FIG. 10 is a tilt sensor output diagram.
FIG. 11 is an angular velocity sensor output diagram.
[Explanation of symbols]
(1) Traveling vehicle (15) Planting part (agricultural work machine)
(48) Rolling cylinder (rolling member)
(57) Inclination sensor (58) Angular velocity sensor

Claims (3)

走行車に農作業機を左右傾斜自在に装設させると共に、農作業機のローリング動作を検出する角速度センサ及び傾斜センサと、前記各センサの検出結果に基づき農作業機の左右傾斜を修正するためのローリングシリンダとを設け農作業車において、前記農作業機の左側部と右側部の重量が不均衡でローリングシリンダの左傾修正速度と右傾修正速度が異なることを検出し、当該検出結果に基づき前記農作業機が自動水平制御動作中に傾いたときに前記農作業機の傾きが角速度センサの出力により自動的に修正されるように構成したことを特徴とする農作業車。An agricultural machine is mounted on a traveling vehicle so as to be tiltable to the left and right, an angular velocity sensor and a tilt sensor for detecting a rolling operation of the farm machine, and a rolling cylinder for correcting the horizontal tilt of the farm machine based on the detection results of each sensor. in agricultural vehicles provided with bets, detects a left-leaning corrected speed and right-inclined corrected speed of the left side and the weight of the right side is unbalanced rolling cylinder of the agricultural machine are different, the agricultural machine based on the detection result automatically agricultural vehicle, characterized in that the inclination of the agricultural machine is configured to so that is automatically corrected by the output of the angular velocity sensor when tilted during horizontal control operation. ローリングシリンダの自動水平制御の不感帯よりも、自動水平制御動作中の傾き修正の判断基準値を大きくすると共に、傾斜センサ出力の一定時間内の平均値を求めて、これにより左傾修正速度と右傾修正速度の差異を検出するように構成したことを特徴とする請求項1に記載の農作業車。Than the dead zone of the automatic horizontal control of the rolling cylinder, as well as increase the criterion value of the self leveling operation in inclination correcting, by an average value within a fixed time of the output of the tilt sensor, and thereby the left-inclined corrected speed right-inclined The agricultural work vehicle according to claim 1, wherein the agricultural work vehicle is configured to detect a difference in correction speed . 自動水平制御動作中に農作業機が傾いたときに角速度センサの出力反転基準値をオフセットして前記農作業機の傾きを修正するように構成したことを特徴とする請求項1に記載の農作業車。  2. The agricultural vehicle according to claim 1, wherein when the agricultural machine is tilted during the automatic horizontal control operation, the inclination of the agricultural machine is corrected by offsetting an output reversal reference value of the angular velocity sensor.
JP02008097A 1997-01-16 1997-01-16 Farm work vehicle Expired - Fee Related JP3720506B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP02008097A JP3720506B2 (en) 1997-01-16 1997-01-16 Farm work vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP02008097A JP3720506B2 (en) 1997-01-16 1997-01-16 Farm work vehicle

Publications (2)

Publication Number Publication Date
JPH10191729A JPH10191729A (en) 1998-07-28
JP3720506B2 true JP3720506B2 (en) 2005-11-30

Family

ID=12017130

Family Applications (1)

Application Number Title Priority Date Filing Date
JP02008097A Expired - Fee Related JP3720506B2 (en) 1997-01-16 1997-01-16 Farm work vehicle

Country Status (1)

Country Link
JP (1) JP3720506B2 (en)

Also Published As

Publication number Publication date
JPH10191729A (en) 1998-07-28

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