JP3930523B2 - Combine - Google Patents
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- JP3930523B2 JP3930523B2 JP2005315222A JP2005315222A JP3930523B2 JP 3930523 B2 JP3930523 B2 JP 3930523B2 JP 2005315222 A JP2005315222 A JP 2005315222A JP 2005315222 A JP2005315222 A JP 2005315222A JP 3930523 B2 JP3930523 B2 JP 3930523B2
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本発明は、コンバインに関する。 The present invention relates to a combine.
従来、左右走行クローラを装設し、操向操作具を備えると共に、走行クローラにエンジンの駆動力を伝えるミッションケースを設け、また遊星ギヤ機構を備える差動機構をミッションケースに設ける技術がある（例えば、特許文献１参照）。
前記従来技術は、左右の遊星ギヤ機構を差動させるから、直進と旋回の出力変化をスムーズに行わせることができるが、エンジンの駆動力を遊星ギヤ機構に伝える無段変速機構の制御によって旋回動作させるから、旋回制御構造の簡略化並びに走行クローラの駆動効率の向上などを容易に図り得ない等の問題がある。 Since the prior art differentials the left and right planetary gear mechanisms, it can smoothly change the output between straight and turning, but it turns by controlling the continuously variable transmission mechanism that transmits the driving force of the engine to the planetary gear mechanism. Since it is operated, there are problems such as simplification of the turning control structure and improvement in driving efficiency of the traveling crawler.
本発明では、左右走行クローラ（２）を装設し、操向ハンドル（１６２）を備えると共に、走行クローラ（２）にエンジン（２１）の駆動力を伝えるミッションケース（２２）を設けたコンバインにおいて、主変速レバー（６８）よりも右側に配設された前記操向ハンドル（１６２）の右側部に、旋回方向微調節用の操作片（１４５）を設け、前記操向ハンドル（１６２）を手で握った状態で指先により操作片（１４５）を左右操作して旋回方向の微調節を行うことができるように構成したことを特徴とするコンバインを提供するものである。 In the present invention, in the combine provided with the left and right traveling crawler (2), the steering handle (162), and the transmission case (22) for transmitting the driving force of the engine (21) to the traveling crawler (2). An operation piece (145) for fine adjustment of the turning direction is provided on the right side of the steering handle (162) disposed on the right side of the main transmission lever (68) , and the steering handle (162) is The combine is characterized in that it can be finely adjusted in the turning direction by operating the operation piece (145) to the left and right with the fingertip in a state where it is gripped.
本発明では、左右走行クローラ（２）を装設し、操向ハンドル（１６２）を備えると共に、走行クローラ（２）にエンジン（２１）の駆動力を伝えるミッションケース（２２）を設けたコンバインにおいて、主変速レバー（６８）よりも右側に配設された前記操向ハンドル（１６２）の右側部に、旋回方向微調節用の操作片（１４５）を設けているので、前記操向ハンドル（１６２）を手で握った状態で指先により操作片（１４５）を左右操作して旋回方向の微調節を行うことができる。 In the present invention, in the combine provided with the left and right traveling crawler (2), the steering handle (162), and the transmission case (22) for transmitting the driving force of the engine (21) to the traveling crawler (2). Since the steering handle (145) for fine adjustment in the turning direction is provided on the right side of the steering handle (162) disposed on the right side of the main speed change lever (68) , the steering handle (162 ) Can be finely adjusted in the turning direction by operating the operation piece (145) to the left and right with the fingertip.
以下、本発明の実施例を図面に基づいて詳述する。図１は旋回レバー部の説明図、図２は全体側面図、図３は同平面図であり、図中（１）は走行部である走行クローラ（２）を装設するトラックフレーム、（３）は前記トラックフレーム（１）に架設する機台、（４）はフィードチェン（５）を左側に張架し扱胴（６）及び処理胴（７）を内蔵している脱穀部、（８）は刈刃（９）及び穀稈搬送機構（１０）などを備える刈取部、（１１）は刈取フレーム（１２）を介して刈取部（８）を昇降させる油圧昇降シリンダ、（１３）は排藁チェン（１４）終端を臨ませる排藁処理部、（１５）は脱穀部（４）からの穀粒を揚穀筒（１６）を介して搬入する穀物タンク、（１７）は前記タンク（１５）の穀粒を機外に搬出する排出オーガ、（１８）は操向レバー（１９）及び運転席（２０）などを備える運転キャビン、（２１）は運転キャビン（１８）下方に設けるエンジンであり、連続的に穀稈を刈取って脱穀するように構成している。 Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory view of a turning lever portion, FIG. 2 is an overall side view, and FIG. 3 is a plan view thereof. In the drawing, (1) is a track frame on which a traveling crawler (2) as a traveling portion is installed. ) Is a machine base installed on the track frame (1), (4) is a threshing section in which a feed chain (5) is stretched on the left side and a handling cylinder (6) and a processing cylinder (7) are built in (8) ) Is a cutting part including a cutting blade (9) and a grain transporting mechanism (10), (11) is a hydraulic lifting cylinder that lifts and lowers the cutting part (8) via a cutting frame (12), and (13) is a discharge cylinder. A waste disposal processing section facing the end of the straw chain (14), (15) a grain tank for carrying the grain from the threshing section (4) through the milled cylinder (16), and (17) the tank (15 ) The discharge auger that carries the grain out of the machine, (18) is equipped with a steering lever (19) and a driver seat (20), etc. That operating cabin, and configured to threshing harvests (21) the driver cabin (18) an engine provided below, continuously culms.
また、図４に示す如く、前記走行クローラ（２）を駆動するミッションケース（２２）は、１対の油圧変速ポンプ（２３）及び油圧変速モータ（２４）からなる主変速機構である走行用の油圧式無段変速機構（２５）と、１対の油圧操向ポンプ（２６）及び油圧操向モータ（２７）からなる操向機構である旋回用の油圧式無段変速機構（２８）とを備え、前記エンジン（２１）の出力軸（２１ａ）の駆動力を変速及び操向ポンプ（２３）（２６）の入力軸（２９）にカウンタケース（３０）を介してベルト伝動させ、各ポンプ（２３）（２６）を駆動するように構成している。 Further, as shown in FIG. 4, the transmission case (22) for driving the traveling crawler (2) is a main transmission mechanism comprising a pair of a hydraulic transmission pump (23) and a hydraulic transmission motor (24). A hydraulic continuously variable transmission mechanism (25) and a turning hydraulic continuously variable transmission mechanism (28) which is a steering mechanism including a pair of hydraulic steering pumps (26) and a hydraulic steering motor (27). And the driving force of the output shaft (21a) of the engine (21) is transmitted to the input shaft (29) of the speed change and steering pumps (23) and (26) via the counter case (30), and the pump ( 23) (26) is driven.
そして、前記変速モータ（２４）の出力軸（３１）に、副変速機構（３２）及び強制差動機構（３３）を介し、左右走行クローラ（２）（２）の駆動輪（３４）（３４）を連動連結させるもので、前記差動機構（３３）は左右対称の１対の遊星ギヤ機構（３５）（３５）を有し、該遊星ギヤ機構（３５）は１つのサンギヤ（３６）と、該サンギヤ（３６）の外周で噛合う３つのプラネタリギヤ（３７）…と、各プラネタリギヤ（３７）…に噛合うリングギヤ（３８）などで形成している。 The drive wheels (34), (34) of the left and right traveling crawlers (2), (2) are connected to the output shaft (31) of the transmission motor (24) via the auxiliary transmission mechanism (32) and the forced differential mechanism (33). The differential mechanism (33) has a pair of left and right planetary gear mechanisms (35) and (35), and the planetary gear mechanism (35) is connected to one sun gear (36). The planetary gears (37)... Meshed with the outer periphery of the sun gear (36) and the ring gears (38) meshed with the planetary gears (37).
さらに、前記各プラネタリギヤ（３７）…は、サンギヤ軸（３９）と同軸線上とのキャリヤ軸（４０）のキャリヤ（４１）にそれぞれ回転自在に軸支させ、左右のサンギヤ（３６）（３６）を挾んで左右のキャリヤ（４１）を対向配置させると共に、前記リングギヤ（３８）は、各プラネタリギヤ（３７）に噛み合う内歯（３８ａ）を有し、サンギヤ軸（３９）と同一軸芯上のキャリヤ軸（４０）に回転自在に支持させている。 Further, each of the planetary gears (37) is rotatably supported by the carrier (41) of the carrier shaft (40) coaxial with the sun gear shaft (39), and the left and right sun gears (36) (36) are supported. The ring gear (38) has internal teeth (38a) that mesh with the planetary gears (37), and the carrier shaft on the same axis as the sun gear shaft (39). (40) is rotatably supported.
またさらに、走行用の油圧式無段変速機構（２５）は、変速ポンプ（２３）の回転斜板（２３ａ）の角度変更調節により変速モータ（２４）の正逆回転と回転数の制御を行うもので、変速モータ（２４）の回転出力を出力軸（３１）の伝達ギヤ（４２）から、各ギヤ（４３）（４４）（４５）及び副変速機構（３２）を介し、サンギヤ軸（３９）に固定したセンタギヤ（４６）に伝達してサンギヤ（３６）を回転するように構成している。 Furthermore, the traveling hydraulic continuously variable transmission mechanism (25) controls the forward / reverse rotation and the rotational speed of the transmission motor (24) by adjusting the angle of the rotary swash plate (23a) of the transmission pump (23). Therefore, the rotational output of the speed change motor (24) is transmitted from the transmission gear (42) of the output shaft (31) via the gears (43) (44) (45) and the auxiliary speed change mechanism (32) to the sun gear shaft (39). The sun gear (36) is rotated by being transmitted to the center gear (46) fixed to the center gear (46).
前記副変速機構（３２）は、前記ギヤ（４５）を有する副変速軸（４７）と、前記センタギヤ（４６）に噛合うギヤ（４８）を有する駐車ブレーキ軸（４９）とを備え、副変速軸（４７）とブレーキ軸（４９）間に、低速用ギヤ（５０）（４８）及び中速用ギヤ（５１）（５２）及び高速用ギヤ（５３）（５４）を設け、中央位置の副変速切換用ギヤ（５１）のスライダ（５１ａ）の摺動操作によって副変速の低速と中速と高速の切換を行うように構成している。なお、低速と中速の間及び中速と高速の間には中立ゾーンを有する。 The auxiliary transmission mechanism (32) includes an auxiliary transmission shaft (47) having the gear (45) and a parking brake shaft (49) having a gear (48) meshing with the center gear (46). A low speed gear (50) (48), a medium speed gear (51) (52), and a high speed gear (53) (54) are provided between the shaft (47) and the brake shaft (49), and the auxiliary gear at the center position is provided. The sub-shift is configured to be switched between a low speed, a medium speed, and a high speed by a sliding operation of the slider (51a) of the speed change gear (51). There is a neutral zone between the low speed and the medium speed and between the medium speed and the high speed.
また前記駐車ブレーキ軸（４９）に車速検出ギヤ（５５）と、該ギヤ（５５）の回転数によって車速を検出する車速センサ（５６）を設けると共に、刈取部（８）に回転力を伝達する刈取ＰＴＯ軸（５７）のＰＴＯ入力ギヤ（５８）に、前記出力軸（３１）の伝達ギヤ（４２）を噛合連結させている。 The parking brake shaft (49) is provided with a vehicle speed detection gear (55) and a vehicle speed sensor (56) for detecting the vehicle speed based on the number of rotations of the gear (55), and the rotational force is transmitted to the cutting part (8). The transmission gear (42) of the output shaft (31) is meshed with the PTO input gear (58) of the cutting PTO shaft (57).
そして、前記センタギヤ（４６）を介しサンギヤ軸（３９）に伝達された変速モータ（２４）からの駆動力を、左右の遊星ギヤ機構（３５）（３５）を介して左右キャリヤ軸（４０）（４０）に伝達させると共に、各キャリヤ軸（４０）（４０）に伝達された回転出力を左右１対２組の減速ギヤ（６０）（６１）・（６０）（６１）を介して左右の駆動輪（３４）（３４）の車軸（３４ａ）（３４ａ）にそれぞれ伝えるように構成している。 Then, the driving force from the transmission motor (24) transmitted to the sun gear shaft (39) through the center gear (46) is transmitted to the left and right carrier shafts (40) (40) through the left and right planetary gear mechanisms (35) (35). 40), and the rotational output transmitted to each carrier shaft (40) (40) is driven left and right via a pair of left and right reduction gears (60), (61), (60), and (61). The wheels (34) and (34) are configured to transmit to the axles (34a) and (34a), respectively.
また、旋回用の油圧式無段変速機構（２８）は、操向ポンプ（２６）の回転斜板（２６ａ）の角度変更調節により操向モータ（２７）の正逆回転切換と回転数の制御を行うもので、操向モータ（２７）の出力軸（６２）の出力ギヤからギヤ伝達機構（６３）を介し最終出力軸である旋回軸（６４）の旋回ギヤ（６５ａ）（６５ｂ）に回転出力を伝達し、右側のリングギヤ（３８）の外歯（３８ｂ）に対して右旋回ギヤ（６５ａ）を噛合させ、また左側のリングギヤ（３８）の外歯（３８ｂ）に逆転軸（６６）の逆転ギヤ（６７）を介して左旋回ギヤ（６５ｂ）を連結させ、操向モータ（２７）の正転時に左右のリングギヤ（３８）（３８）を左右同一回転数で回転させ、かつ左リングギヤ（３８）を正転させ、右リングギヤ（３８）を逆転させるように構成している。 In addition, the hydraulic continuously variable transmission mechanism (28) for turning is controlled by switching the forward / reverse rotation of the steering motor (27) and controlling the rotational speed by adjusting the angle of the rotary swash plate (26a) of the steering pump (26). Rotating from the output gear of the output shaft (62) of the steering motor (27) to the turning gears (65a) (65b) of the turning shaft (64) as the final output shaft through the gear transmission mechanism (63). The output is transmitted, the right turning gear (65a) is engaged with the external teeth (38b) of the right ring gear (38), and the reverse rotation shaft (66) is engaged with the external teeth (38b) of the left ring gear (38). The left turning gear (65b) is connected via the reverse rotation gear (67) of the left and right, the left and right ring gears (38) and (38) are rotated at the same left and right rotational speed when the steering motor (27) is rotated forward, and the left ring gear (38) is rotated forward and the right ring gear (38) is rotated backward. It is configured to so that.
而して、旋回用の操向モータ（２７）の駆動を停止させ、かつ左右リングギヤ（３８）を静止固定させた状態で、走行用の変速モータ（２４）を駆動させると、変速モータ（２４）からの回転出力はセンタギヤ（４６）から左右のサンギヤ（３６）に同一回転数で伝達され、左右遊星ギヤ機構（３５）のプラネタリギヤ（３７）及びキャリヤ（４１）及び減速ギヤ（６０）（６１）を介して左右の車軸（３４ａ）（３４ａ）に左右同一回転方向でかつ同一回転数で伝達され、機体の前後直進走行が行われる。一方、走行用の変速モータ（２４）を停止させ、かつ左右のサンギヤ（３６）（３６）を静止固定させた状態で、旋回用の操向モータ（２７）を正逆回転駆動すると、左側の遊星ギヤ機構（３５）が正或いは逆回転し、また右側の遊星ギヤ機構（３５）が逆或いは正回転し、左右走行クローラ（２）（２）の一方を前進回転させかつもう一方を後進回転させ、機体を左或いは右にその場でスピンターン（心地旋回）させ、圃場枕地での方向転換などを行うように構成している。 Thus, when the driving of the traveling motor (24) is stopped in a state where the driving of the steering motor (27) for turning is stopped and the left and right ring gears (38) are fixed stationary, the transmission motor (24 ) Is transmitted from the center gear (46) to the left and right sun gears (36) at the same rotational speed, and the planetary gear (37), the carrier (41) and the reduction gears (60) (61) of the left and right planetary gear mechanism (35). ) Is transmitted to the left and right axles (34a) and (34a) in the same rotational direction in the left and right and at the same rotational speed, and the aircraft is driven straight forward and backward. On the other hand, when the turning steering motor (27) is driven to rotate in the forward and reverse directions while the traveling speed changing motor (24) is stopped and the left and right sun gears (36) and (36) are stationary and fixed, The planetary gear mechanism (35) rotates forward or backward, and the right planetary gear mechanism (35) rotates backward or forward, causing one of the left and right traveling crawlers (2) and (2) to rotate forward and the other to rotate backward. The aircraft is configured to spin or turn on the spot to the left or right to change the direction at the field headland.
また、走行用の変速モータ（２４）を駆動させながら、旋回用の操向モータ（２７）を駆動すると、左右走行クローラ（２）（２）の駆動速度に差が生じて機体を左右に旋回させ、旋回半径の大きい旋回によって走行方向が修正され、また前記旋回半径は左右走行クローラ（２）（２）の速度差に応じて決定されるように構成している。 In addition, when the steering motor (27) for driving is driven while driving the transmission motor (24) for driving, a difference occurs in the driving speed of the left and right driving crawlers (2) and (2), and the aircraft is turned left and right. The traveling direction is corrected by turning with a large turning radius, and the turning radius is determined according to the speed difference between the left and right traveling crawlers (2) and (2).
図５乃至図１３に示す如く、前記走行用の油圧式無段変速機構（２５）に連結する主変速レバー（６８）と、旋回用の油圧式無段変速機構（２８）に連結する操向レバー（１９）とを、変速及び旋回連動機構（６９）に連動連結させると共に、該連動機構（６９）を走行変速及び操向リンク系であるリンク機構（７０）（７１）介し走行及び操向用の無段変速機構（２５）（２８）のコントロールレバー（７２）（７３）に連動連結させている。 As shown in FIGS. 5 to 13, the main transmission lever (68) connected to the traveling hydraulic continuously variable transmission mechanism (25) and the steering connected to the turning hydraulic continuously variable transmission mechanism (28). The lever (19) is linked to the shift and turn interlocking mechanism (69), and the interlocking mechanism (69) is traveled and steered via the link mechanisms (70) and (71) which are travel shifting and steering link systems. Are connected to the control levers (72) and (73) of the continuously variable transmission mechanism (25) and (28).
前記連動機構（６９）は、主変速レバー（６８）の基端折曲部（６８ａ）を筒軸（７４）に左右揺動自在に支持する回動板（７５）と、機体側の本機フレーム（７６）に固設して前記回動板（７５）を左右方向の第１枢軸（７７）を介し前後回動自在に支持する固定取付板（７８）と、前記枢軸（７７）と直交する前後方向の第２枢軸（７９）を介して回動板（７５）に連結させて該軸（７９）回りに回動自在に設ける変速操作部材（８０）と、前記第２枢軸（７９）の軸回りに回動自在に連結させる操向操作部材（８１）とを備え、変速及び操向操作部材（８０）（８１）の第２枢軸（７９）とは偏心位置の各操作出力部（８０ａ）（８１ａ）を変速及び操向リンク機構（７０）（７１）に連動連結させている。 The interlocking mechanism (69) includes a rotating plate (75) for supporting the base end bent portion (68a) of the main transmission lever (68) on the cylindrical shaft (74) so as to be swingable in the left-right direction, and the main body side machine. A fixed mounting plate (78) fixed to a frame (76) and supporting the rotating plate (75) through a first pivot (77) in the left-right direction so as to be able to pivot back and forth, and orthogonal to the pivot (77). A speed change operation member (80) which is connected to a rotary plate (75) via a second pivot (79) in the front-rear direction and is provided to be rotatable around the axis (79); and the second pivot (79) And a steering operation member (81) that is pivotably connected around the axis of the second pivot (79) of the speed change and steering operation members (80) (81). 80a) (81a) are interlockingly connected to the shifting and steering link mechanisms (70) (71).
前記変速及び操向リンク機構（７０）（７１）は、連動機構（６９）後方位置で本機フレーム（７６）側に揺動軸（８２）外側の揺動筒軸（８３）を介し支持する変速アーム（８４）と、前記揺動軸（８２）に基端を固設する操向アーム（８５）と、前記出力部（８０ａ）（８１ａ）の各操作出力軸（８６）（８７）と各アーム（８４）（８５）間を連結する自在継手軸（８８）（８９）と、前記揺動軸（８２）の右端に固設する操向出力アーム（９０）と、前記運転キャビン（１８）の回動支点軸（９２）の支点軸受（９３）に取付ける中間軸（９４）に回転自在に設ける変速及び操向用第１揺動アーム（９５）（９６）と、前記アーム（８４）（９０）と第１揺動アーム（９５）（９６）の各先端間をそれぞれ連結する変速及び操向用自在継手形第１ロッド（９７）（９８）と、前記中間軸（９４）に設けて第１揺動アーム（９５）（９６）に一体連結する変速及び操向用第２揺動アーム（９９）（１００）と、前記ミッションケース（２２）上部の軸受板（１０１）に取付ける支軸（１０２）に回動自在に支持させる変速及び操向用筒軸（１０３）（１０４）と、該筒軸（１０３）（１０４）に基端を固設する第１揺動アーム（１０５）（１０６）と前記第２揺動アーム（９９）（１００）の各先端間を連結する変速及び操向用自在継手形第２ロッド（１０７）（１０８）と、前記筒軸（１０３）（１０４）に基端を固設する第２揺動アーム（１０９）（１１０）と前記コントロールレバー（７２）（７３）の各先端間を連結させる変速及び操向用自在継手形第３ロッド（１１１）（１１２）とを備え、前記第１枢軸（７７）を中心とした変速操作部材（８０）の回動によって走行用のコントロールレバー（７２）を、また走行中の第２枢軸（７９）を中心とした操向操作部材（８１）の回動によって操向用のコントロールレバー（７３）を操作して変速及び操向制御を行うように構成している。 The shift and steering link mechanisms (70) (71) are supported on the frame (76) side of the machine mechanism (69) via the swinging cylinder shaft (83) outside the swinging shaft (82) at the rear position of the interlocking mechanism (69). A transmission arm (84), a steering arm (85) having a base end fixed to the swing shaft (82), and each operation output shaft (86) (87) of the output sections (80a) (81a) Universal joint shafts (88) and (89) for connecting the arms (84) and (85), a steering output arm (90) fixed to the right end of the swing shaft (82), and the operating cabin (18) ) And the first swing arm (95) (96) for shifting and steering provided on the intermediate shaft (94) attached to the fulcrum bearing (93) of the rotation fulcrum shaft (92), and the arm (84) (90) and the first swing arm (95) (96) and the respective ends of the first swing arm (95) (96) are connected to each other. Joint-type first rods (97) (98) and a second swing arm (99) for shifting and steering that is provided on the intermediate shaft (94) and is integrally connected to the first swing arm (95) (96). (100), a shift and steering cylinder shaft (103) (104) rotatably supported by a support shaft (102) attached to the bearing plate (101) on the transmission case (22), and the cylinder shaft (103) (104) The first swing arm (105) (106) having a base end fixed to the distal end of the second swing arm (99) (100) and the second swing arm (99) (100) are connected to each other for free shifting and steering. Joint-type second rods (107) (108), second swinging arms (109) (110) having base ends fixed to the cylindrical shafts (103) (104), and the control levers (72) (73) Universal joint-type third rod for shifting and steering (1 1) (112), and a traveling control lever (72) is rotated by rotation of the speed change operation member (80) about the first pivot (77), and the second pivot (79) during traveling. The steering control lever (73) is operated by rotating the steering operation member (81) around the center to perform speed change and steering control.
一方、前記操向レバー（１９）下端の旋回操作軸（１１３）にギヤ（１１４）を設け、この後方の回転軸（１１５）に取付けるセクタギヤ（１１６）に前記ギヤ（１１４）を噛合せると共に、前記主変速レバー（６８）位置下方に配設する操向軸（１１７）の第１揺動アーム（１１８）と、前記回転軸（１１５）に基端を固設する出力アーム（１１９）との各先端間を自在継手形操向第１ロッド（１２０）を介して連結させ、操向軸（１１７）の第１揺動アーム（１１８）と一体の第２揺動アーム（１２１）を、前記自在継手軸（８９）の前端に自在継手形操向第２ロッド（１２２）を介して連結させ、前記レバー（１９）の左右傾動操作によって前記第２枢軸（７９）を中心として操向操作部材（８１）を回動するように構成している。 On the other hand, a gear (114) is provided on the turning operation shaft (113) at the lower end of the steering lever (19), and the gear (114) is engaged with a sector gear (116) attached to the rear rotation shaft (115). A first swing arm (118) of a steering shaft (117) disposed below the position of the main transmission lever (68), and an output arm (119) having a base end fixed to the rotating shaft (115). Each tip is connected via a universal joint type steering first rod (120), and the second swing arm (121) integrated with the first swing arm (118) of the steering shaft (117) A steering operation member is connected to the front end of the universal joint shaft (89) via a universal joint-type steering second rod (122), and the lever (19) is tilted left and right about the second pivot (79). (81) is configured to rotate.
また、前記旋回操作軸（１１３）のギヤ（１１４）下方に中立位置決め板（１２３）を設け、該位置決め板（１２３）下面の突出軸（１２４）に操向検出リンク（１２５）の一端を連結させ、前記回転軸（１１５）の右側に配設する減速アーム軸（１２６）の第１揺動アーム（１２７）と前記検出リンク（１２５）他端の長孔（１２５ａ）とを軸（１２８）を介し連結させると共に、前記操向軸（１１７）の減速アーム（１２９）と減速アーム軸（１２６）の第２揺動アーム（１３０）の各先端間を自在継手形第１減速ロッド（１３１）で連結させ、前記変速操作部材（８０）の最右端の減速伝達軸（１３２）と第２揺動アーム（１３０）の他端間を自在継手形第２減速ロッド（１３３）で連結させ、走行状態で前記レバー（１９）の左右操向操作量を大きくする程左右旋回の何れにおいても第１揺動アーム（１２７）を同一方向に角度（θ）の範囲で回動させて、第２減速ロッド（１３３）を下方に引張り、操向操作量に比例させて走行速度を減速させるように構成している。 A neutral positioning plate (123) is provided below the gear (114) of the turning operation shaft (113), and one end of the steering detection link (125) is connected to the protruding shaft (124) on the lower surface of the positioning plate (123). The first swing arm (127) of the reduction arm shaft (126) disposed on the right side of the rotation shaft (115) and the long hole (125a) at the other end of the detection link (125) are connected to the shaft (128). And a universal joint type first reduction rod (131) between the tips of the reduction arm (129) of the steering shaft (117) and the second swing arm (130) of the reduction arm shaft (126). And the rightmost speed reduction transmission shaft (132) of the speed change operation member (80) and the other end of the second swing arm (130) are connected by a universal joint type second speed reduction rod (133) to travel. Left and right operation of the lever (19) in the state As the operation amount is increased, the first swing arm (127) is rotated in the same direction in the range of the angle (θ) in both the left and right turns, and the second deceleration rod (133) is pulled downward to steer. The traveling speed is reduced in proportion to the operation amount.
而して、図１３に示す如く、前記変速及び操向操作部材（８０）（８１）を軸回りに回動支持させる第２枢軸（７９）と、操向アーム（８５）に連結させる継手軸（８９）の自在継手部（８９ａ）とを前後方向の水平ライン（Ｌ１）上に位置させ、また前記操作出力軸（８６）（８７）に連結させる自在継手軸（８８）（８９）の自在継手部（８８ｂ）（８９ｂ）と、第１枢軸（７７）とを前記ライン（Ｌ１）に直交させる左右水平ライン（Ｌ２）上に位置させ、さらに前記変速アーム（８４）に連結させる継手軸（８８）との自在継手部（８８ａ）と前記継手部（８９ａ）を前記ライン（Ｌ２）と平行な左右水平ライン（Ｌ３）上に位置させ、且つ継手部（８９ａ）に継手部（８８ａ）を可及的に接近（最大限近い位置）させて配置させ、主変速レバー（６８）及び操向レバー（１９）を中立位置に支持しているとき、前記レバー（６８）または（１９）の何れか一方が操作されても、各操作部材（８０）（８１）を第１及び第２枢軸（７７）（７９）回りに回動させるだけで、継手軸（８８）（８９）にまで前記レバー（６８）または（１９）の操作力が及ばないように構成している。 Thus, as shown in FIG. 13, the second pivot (79) for pivotally supporting the shift and steering operation members (80) (81) around the axis and the joint shaft connected to the steering arm (85). The universal joint shaft (88) (89) is connected to the operation output shaft (86) (87) by positioning the universal joint portion (89a) of (89) on the horizontal line (L1) in the front-rear direction. The joint shaft (88b) (89b) and the first pivot (77) are positioned on the left and right horizontal line (L2) perpendicular to the line (L1), and are further coupled to the speed change arm (84) ( 88) and the universal joint portion (88a) and the joint portion (89a) are positioned on the horizontal horizontal line (L3) parallel to the line (L2), and the joint portion (89a) is provided with the joint portion (88a). Place as close as possible (closest position), When the transmission lever (68) and the steering lever (19) are supported at the neutral position, each of the operation members (80) (81) can be operated even if either the lever (68) or (19) is operated. The lever (68) or (19) is not applied to the joint shafts (88) and (89) only by rotating the first and second pivots (77) and (79). ing.
そして、図９及び図１３に示す如く、主変速レバー（６８）を前後進操作し、第１枢軸（７７）を中心として操作部材（８０）を前後に角度（α１）（α２）傾けるとき、前記継手軸（８８）を引張り或いは押して変速アーム（８４）を動作させ、走行速度の前後進切換を行うと共に、図１０に示す如く主変速レバー（６８）が中立以外の位置に操作されている状態で、操向レバー（１９）を傾動操作し、第２枢軸（７９）を中心として操作部材（８１）を上下に角度（β１）（β２）傾けるとき、継手軸（８９）を引張り或いは押して操向アーム（８５）を動作させ、機体を左及び右旋回させる操向動作を行わせるもので、主変速レバー（６８）の中立時に旋回操作を行っても、継手部（８９ａ）を支点として継手軸（８９）はライン（Ｌ１）を中心とした円錐面上で回転移動し、ライン（Ｌ１）と軸（７７）の交点を中心とする同一円周上を継手部（８９ｂ）が移動し、継手部（８９ｂ）とライン（Ｌ３）の距離が略一定に保たれ、したがって操向アーム（８５）は動作しない。 9 and 13, when the main transmission lever (68) is operated to move forward and backward, and the operating member (80) is tilted back and forth by an angle (α1) (α2) about the first pivot (77), The transmission shaft (84) is operated by pulling or pushing the joint shaft (88) to switch the traveling speed forward and backward, and the main transmission lever (68) is operated to a position other than neutral as shown in FIG. In this state, when the steering lever (19) is tilted and the operating member (81) is tilted up and down by an angle (β1) (β2) about the second pivot (79), the joint shaft (89) is pulled or pushed. The steering arm (85) is operated to perform a steering operation to turn the aircraft to the left and right. Even if the turning operation is performed when the main transmission lever (68) is neutral, the joint (89a) is supported as a fulcrum. The joint shaft (89) is line (L1 The joint part (89b) moves on the same circumference centered at the intersection of the line (L1) and the shaft (77), and the joint part (89b) and the line (L3 ) Is kept substantially constant, so the steering arm (85) does not operate.
しかも、主変速レバー（６８）が中立位置以外のときにレバー（１９）の旋回操作が行われると、操向アーム（８５）は動作するもので、前後進に切換わるとき操向アーム（８５）は前後逆方向に動作し、操向モータ（２７）を前進時と後進時では逆方向に回転させるように構成したものである。 In addition, when the lever (19) is turned when the main transmission lever (68) is not in the neutral position, the steering arm (85) operates, and when switching to the forward / reverse movement, the steering arm (85 ) Operates in the reverse direction, and the steering motor (27) is configured to rotate in the reverse direction during forward and reverse travel.
例えば、走行用の変速モータ（２４）の正回転時を前進時とすると、逆回転時の後進時には旋回用の操向モータ（２７）による遊星ギヤ機構（３５）の作用は前進時と後進時では逆となるもので、前進時と後進時のレバー（１９）操作による機体の旋回方向を一致させるため、変速モータ（２４）の逆回転（後進）時には操向ポンプ（２６）の斜板角度を逆方向に切換え、操向モータ（２７）を前進時と後進時では逆方向に回転させるように構成している。 For example, assuming that the forward speed of the traveling speed change motor (24) is forward, the planetary gear mechanism (35) is operated by the turning steering motor (27) when moving backward and reverse. In order to match the turning direction of the airframe by operating the lever (19) during forward movement and reverse movement, the swash plate angle of the steering pump (26) is reversed during reverse rotation (reverse movement) of the transmission motor (24). The steering motor (27) is configured to rotate in the reverse direction during forward and reverse travel.
また、前進操作時の操作部材（８０）が中立より前方の角度（α１）側に傾き、レバー（１９）の右傾動操作によって第２ロッド（１２２）を引張り操作部材（８１）を下方向の角度（β２）側に傾けることにより、操作部材（８１）の出力部（８１ａ）を操向アーム（８５）側に近づけ、揺動軸（８２）を中心として操向アーム（８５）を操作部材（８１）より遠ざける方向（図６中反時計方向）に回転させ、前記第１及び第２ロッド（９８）（１０８）などを介しコントロールレバー（７３）を下方向に回転させ、旋回用の操向モータ（２７）を正回転させる。即ち、機体を前進で右旋回（走行クローラ（２）の速度を左側が大、右側が小）させるように構成している。 Further, the operation member (80) at the time of forward operation is tilted to the forward angle (α1) side from the neutral position, and the second rod (122) is pulled by the right tilt operation of the lever (19), and the operation member (81) is moved downward. By tilting toward the angle (β2) side, the output portion (81a) of the operating member (81) is brought closer to the steering arm (85) side, and the steering arm (85) is moved around the swing shaft (82). Rotate in a direction away from (81) (counterclockwise in FIG. 6), rotate the control lever (73) downward via the first and second rods (98), (108), etc. The direction motor (27) is rotated forward. That is, the aircraft is configured to turn right (travel crawler (2) speed is large on the left side and small on the right side).
さらに、主変速レバー（６８）を前方に倒す前進操作時、レバー（１９）の左傾動操作によって第２ロッド（１２２）を押し上げ、操作部材（８１）を上方向の角度（β１）側に傾けることにより、操作部材（８１）の出力部（８１ａ）を操作アーム（８５）側より遠ざけ、揺動軸（８２）を中心として操向アーム（８５）を操作部材（８１）側に近づける方向（図６中時計方向）に回転させ、前記コントロールレバー（７３）を上方向に回転させ、前記操向モータ（２７）を逆回転させる。即ち、機体を前進で左旋回（走行クローラ（２）の速度を右側が大、左側が小）させるように構成している。 Further, at the time of forward operation in which the main transmission lever (68) is moved forward, the second rod (122) is pushed up by the left tilt operation of the lever (19), and the operation member (81) is tilted to the upward angle (β1) side. Accordingly, the output portion (81a) of the operating member (81) is moved away from the operating arm (85) side, and the steering arm (85) is moved closer to the operating member (81) side around the swing shaft (82) ( The control lever (73) is rotated upward and the steering motor (27) is rotated in the reverse direction. That is, it is configured to turn the aircraft forward (turn the speed of the traveling crawler (2) large on the right side and small on the left side).
さらに、主変速レバー（６８）を後方に倒す後進操作によって操作部材（８０）が中立より後方の角度（α２）側に傾き、レバー（１９）の右傾動操作によって第２ロッド（１２２）を引張り操作部材（８１）を下方向の角度（β２）側に傾けることにより、操作部材（８１）の出力部（８１ａ）を操向アーム（８５）側より遠ざけ、揺動軸（８２）を中心として操向アーム（８５）を操作部材（８１）側に近づける方向（図６中時計方向）に回転させ、前記コントロールレバー（７３）を上方向に回転させ、前記操向モータ（２７）を逆回転させる。即ち、機体を後進で右旋回（走行クローラ（２）の速度を左側が大、右側が小）させるように構成している。 Further, the operation member (80) is tilted to the rear angle (α2) side from the neutral position by the backward operation of tilting the main transmission lever (68) backward, and the second rod (122) is pulled by the right tilt operation of the lever (19). By tilting the operating member (81) to the downward angle (β2) side, the output part (81a) of the operating member (81) is moved away from the steering arm (85) side, and the swing shaft (82) is the center. The steering arm (85) is rotated in the direction approaching the operation member (81) (clockwise in FIG. 6), the control lever (73) is rotated upward, and the steering motor (27) is reversely rotated. Let In other words, the aircraft is configured to turn backward (turn the crawler (2) at a higher speed on the left side and lower on the right side).
また、主変速レバー（６８）後進操作時で、レバー（１９）の左傾動操作によって、操作部材（８１）を上方向の角度（β１）側に傾けることにより、操作部材（８１）の出力部（８１ａ）を操作部材（８１）側に近づけ、揺動軸（８２）を中心として操向アーム（８５）を操作部材（８１）より遠ざける方向（図６中反時計方向）に回転させ、前記コントロールレバー（７３）を下方向に回転させ、前記操向モータ（２７）を正回転させる。即ち、機体を後進で左旋回（走行クローラ（２）の速度を右側が大、左側が小）させるように構成している。 In addition, when the main transmission lever (68) is operated backward, the operation member (81) is tilted to the upward angle (β1) side by the left tilting operation of the lever (19), whereby the output portion of the operation member (81). (81a) is moved closer to the operating member (81) side, and the steering arm (85) is rotated in the direction away from the operating member (81) (counterclockwise in FIG. 6) about the swing shaft (82). The control lever (73) is rotated downward, and the steering motor (27) is rotated forward. That is, the aircraft is configured to turn backward (turn the speed of the traveling crawler (2) large on the right side and small on the left side).
このように、前進及び後進時の旋回操作において、操向アーム（８５）を逆方向に回転させ、前後進の何れにおいても操向レバー（１９）の傾動操作方向と機体の旋回方向とを一致させるように構成している。 In this way, the steering arm (85) is rotated in the reverse direction during the forward and backward turning operations, and the tilting operation direction of the steering lever (19) and the turning direction of the aircraft coincide with each other in the forward and backward movements. It is configured to make it.
図１４にも示す如く、前記操向レバー（１９）は左右方向の傾動操作によって機体の左右旋回を行う一方、前後方向の傾動操作によって刈取部（８）の昇降を行うもので、前記操作軸（１１３）に一対のベベルギヤ（１３４）（１３５）を介し左右揺動軸（１３６）を、また該揺動軸（１３６）にスイッチ台（１３７）・前後揺動軸（１３８）・レバー台（１３９）を介して操向レバー（１９）を前後及び左右揺動自在に連結させている。 As shown also in FIG. 14, the steering lever (19) turns the machine body in the left-right direction by a tilting operation in the left-right direction, and lifts and lowers the cutting part (8) by a tilting operation in the front-rear direction. (113) via a pair of bevel gears (134) and (135), the left and right swing shaft (136) is connected to the swing shaft (136), switch base (137), front and rear swing shaft (138), lever base ( 139), the steering lever (19) is connected to be swingable back and forth and left and right.
前記左右揺動軸（１３６）は操作軸（１１３）を内挿する操向コラム（１４０）上端の側面Ｌ形状の取付板（１４１）に回転自在に枢支させ、略半円形の大径ベベルギヤ（１３５）と平面視Ｌ形状のスイッチ台（１３７）を揺動軸（１３６）に固定すると共に、スイッチ台（１３７）に回転自在に取付ける前後揺動軸（１３８）にレバー台（１３９）を固定させている。そして前記昇降シリンダ（１１）の昇降用バルブを操作する下降及び上昇用スイッチ（１４２）（１４３）を前記スイッチ台（１３７）の外側面に固設すると共に、前記スイッチ（１４２）（１４３）をオン・オフ動作するスイッチ操作板（１４４）を前後揺動軸（１３８）に固定させて、操向レバー（１９）の前或いは後傾動によってスイッチ（１４２）（１４３）をオン・オフして刈取部（８）を上げ或いは下げ動作させ、またレバー（１９）の左或いは右傾動によって操作軸（１１３）を正逆回動して機体を左或いは右旋回させるように構成している。また前記レバー（１９）のノブ部（１９ａ）には旋回方向微調節用の操作片（１４５）を設けて、指先による左右傾動操作で条合せ時などの旋回方向の微調節を行うように構成している。 The left / right swing shaft (136) is pivotally supported by a side plate L-shaped mounting plate (141) at the upper end of a steering column (140) for inserting the operation shaft (113), and has a substantially semicircular large-diameter bevel gear. (135) and a L-shaped switch base (137) in plan view are fixed to the swing shaft (136), and a lever base (139) is mounted on the front and rear swing shaft (138) that is rotatably attached to the switch base (137). It is fixed. And, the lowering and raising switches (142) and (143) for operating the raising and lowering valves of the raising and lowering cylinder (11) are fixed to the outer surface of the switch base (137), and the switches (142) and (143) are provided. The switch operation plate (144) that is turned on / off is fixed to the front / rear swing shaft (138), and the switch (142) (143) is turned on / off by the forward or rearward tilting of the steering lever (19) for cutting. The part (8) is moved up or down, and the lever (19) is tilted to the left or right to rotate the operation shaft (113) forward and backward to turn the body left or right. Further, the knob (19a) of the lever (19) is provided with an operation piece (145) for fine adjustment of the turning direction so that the turning direction can be finely adjusted at the time of alignment by tilting right and left with the fingertip. is doing.
ところで、図１に示す如く、前記油圧操向モータ（２７）の出力軸（６２）の操向出力を１対の減速ギヤ（１４６）（１４７）を介し操向減速軸（１４８）に、また該減速軸（１４８）の回転出力を１対の減速ギヤ（１４９）（１５０）を介し前記旋回軸（６４）にそれぞれ伝えると共に、前記左右旋回ギヤ（６５ｂ）（６５ａ）と旋回軸（６４）との間に多板式の左右クラッチ（１５１）（１５２）とブレーキ（１５３）（１５４）とを介設している。 By the way, as shown in FIG. 1, the steering output of the output shaft (62) of the hydraulic steering motor (27) is sent to the steering reduction shaft (148) via a pair of reduction gears (146) (147), and The rotational output of the reduction shaft (148) is transmitted to the turning shaft (64) through a pair of reduction gears (149) and (150), respectively, and the left and right turning gears (65b) (65a) and the turning shaft (64). A multi-plate type left and right clutch (151) (152) and a brake (153) (154) are interposed between them.
前記左右クラッチ（１５１）（１５２）は例えば電磁式油圧操作弁など左右クラッチ作動機構（１５５）（１５６）のオン動作で各旋回ギヤ（６５ｂ）（６５ａ）と旋回軸（６４）とを一体連結させると共に、前記左右ブレーキ（１５３）（１５４）は例えば電磁式油圧操作弁など左右ブレーキ作動機構（１５７）（１５８）のオン動作で左右旋回ギヤ（６５ｂ）（６５ａ）をミッションケース（２２）側に静止固定させるように構成している。 The left and right clutches (151) and (152) are integrally connected to the respective turning gears (65b) (65a) and the turning shaft (64) by turning on the left and right clutch operating mechanisms (155) and (156) such as electromagnetic hydraulically operated valves. At the same time, the left and right brakes (153) and (154) are turned on by the left and right brake operating mechanisms (157) and (158) such as electromagnetic hydraulically operated valves, and the left and right turning gears (65b) and (65a) are moved to the mission case (22) side. It is configured to be fixed stationary.
そして、図１５に示す如く、前記操作片（１４５）の微小左右旋回検出スイッチ（１４５ａ）（１４５ｂ）と、操向レバー（１９）の中立（直進）を検出直進センサ（１５９）と、操向レバー（１９）の左右旋回操作を検出する旋回センサ（１６０）とを操向コントローラ（１６１）に接続すると共に、前記クラッチ及びブレーキ作動機構（１５５）（１５６）・（１５７）（１５８）にコントローラ（１６１）を接続させて、操向レバー（１９）及び操作片（１４５）操作でもって前記クラッチ（１５１）（１５２）及びブレーキ（１５３）（１５４）の作動制御を行うように構成している。 Then, as shown in FIG. 15, a minute left / right turning detection switch (145a) (145b) of the operation piece (145), a neutrality (straight forward) of the steering lever (19), a straight sensor (159) and a steering A turning sensor (160) for detecting a left and right turning operation of the lever (19) is connected to the steering controller (161), and the clutch and brake operating mechanisms (155) (156), (157) (158) are connected to the controller. (161) is connected, and the operation control of the clutch (151) (152) and the brake (153) (154) is performed by operating the steering lever (19) and the operation piece (145). .
上記から明らかなように、左右走行クローラ（２）を装設し、操向操作具である操向レバー（１９）を備えると共に、走行クローラ（２）にエンジン（２１）の駆動力を伝えるミッションケース（２２）を設け、また遊星ギヤ機構（３５）を備える差動機構（３３）をミッションケース（２２）に設けるコンバインにおいて、左右の遊星ギヤ機構（３５）に駆動力を伝える左右クラッチ（１５１）（１５２）を設け、直進駆動力を維持し乍ら旋回内側のクラッチ（１５１）（１５２）制御によって旋回動作させ、旋回制御構造の簡略化並びに走行クローラ（２）の駆動効率の向上などを図ると共に、左右の遊星ギヤ機構（３５）を制動する左右ブレーキ（１５３）（１５４）を設け、直進駆動力を維持し乍ら例えば旋回内側のクラッチ（１５１）（１５２）制御と旋回外側のブレーキ（１５３）（１５４）制御によって旋回動作させ、旋回制御構造の簡略化を行いかつ旋回機能の向上を図る。 As is apparent from the above, the left and right traveling crawler (2) is installed, the steering lever (19) as a steering operation tool is provided, and the driving force of the engine (21) is transmitted to the traveling crawler (2). In a combine provided with a case (22) and a differential mechanism (33) provided with a planetary gear mechanism (35) in the transmission case (22), a left and right clutch (151) for transmitting driving force to the left and right planetary gear mechanisms (35) ) (152) is provided, and while the straight drive force is maintained, the turning operation is performed by controlling the clutches (151) and (152) inside the turning, thereby simplifying the turning control structure and improving the driving efficiency of the traveling crawler (2). At the same time, left and right brakes (153) and (154) for braking the left and right planetary gear mechanisms (35) are provided to maintain, for example, a clutch (15 ) (152) controls the turning outer brake (153) (154) controlled by the pivoted operation performs simplification of the turning control structure and to improve the turning function.
また、左右の遊星ギヤ機構（３５）のサンギヤ（３６）に駆動力を伝えるセンタギヤ（４６）と、左右の遊星ギヤ機構（３５）の各リングギヤ（３８）に駆動力を伝える左右クラッチ（１５１）（１５２）と、各リングギヤ（３８）を制動する左右ブレーキ（１５３）（１５４）とを、ミッションンケース（２２）に設け、従来のような複雑な油圧制御を不要にし、前記クラッチ（１５１）（１５２）とブレーキ（１５３）（１５４）の簡単な操作によってスムーズに旋回させ、旋回制御構造の簡略化並びに走行クローラ（２）の駆動効率の向上などを図る。 Also, a center gear (46) that transmits driving force to the sun gear (36) of the left and right planetary gear mechanisms (35), and a left and right clutch (151) that transmits driving force to the ring gears (38) of the left and right planetary gear mechanisms (35). (152) and left and right brakes (153) and (154) for braking each ring gear (38) are provided in the mission case (22) so that the complicated hydraulic control as in the prior art is unnecessary, and the clutch (151) (152) and the brakes (153) and (154) are smoothly turned by a simple operation to simplify the turning control structure and improve the driving efficiency of the traveling crawler (2).
また、図１８に示す如く、前記操向レバー（１９）は丸形操向ハンドル（１６２）と交換自在に形成するもので、丸形操向ハンドル（１６２）の右側部に旋回方向微調節用の操作片（１４５）を設けて、丸形操向ハンドル（１６２）を手で握った状態で指先による操作片（１４５）の左右傾動操作で条合せ時などの旋回方向の微調節を行うことができるように構成している。 Further, as shown in FIG. 18, the steering lever (19) is formed to be exchangeable with a round steering handle (162), and is used for fine adjustment of the turning direction on the right side of the round steering handle (162). The operation piece (145) is provided, and the turning direction is finely adjusted at the time of alignment by the left and right tilting operation of the operation piece (145) with the fingertip while holding the round steering handle (162) with the hand. It is configured to be able to.
本実施例は上記の如く構成するものにして、図１６及び図１７に示す如く、操向レバー（１９）を中立に保持しての直進走行時には、左右クラッチ（１５１）（１５２）及びブレーキ（１５３）（１５４）を共にオンとさせて、左右リングギヤ（３８）を静止固定させて変速モータ（２４）からの回転出力のみで走行クローラ（２）を直進走行させる。 In this embodiment, as described above, as shown in FIGS. 16 and 17, the left and right clutches (151) (152) and brake ( 153) (154) are both turned on, the left and right ring gears (38) are stationary and fixed, and the traveling crawler (2) travels straight only by the rotational output from the transmission motor (24).
また、操向レバー（１９）を左右に傾動させての機体旋回時には、左右クラッチ（１５１）（１５２）をオン・左右ブレーキ（１５３）（１５４）をオフとさせて、操向モータ（２７）の旋回出力を左右リングギヤ（３８）に伝えて、左右走行クローラ（２）（２）の駆動速度に相対差を生じさせて、左右に機体を旋回させる。 Further, when turning the aircraft with the steering lever (19) tilted left and right, the left and right clutches (151) and (152) are turned on and the left and right brakes (153) and (154) are turned off, and the steering motor (27) Is transmitted to the left and right ring gears (38) to cause a relative difference in the driving speeds of the left and right traveling crawlers (2) and (2), thereby turning the aircraft to the left and right.
さらに、操向レバー（１９）の中立位置で、操作片（１４５）の左傾動によって左旋回検出スイッチ（１４５ａ）がオンとなるフィット左旋回操作時には、左クラッチ（１５１）及びブレーキ（１５３）をオフとさせて左リングギヤ（３８）を自由回転状態とさせる一方、右クラッチ（１５２）をオン或いはオフ、右ブレーキ（１５４）をオンとさせて右リングギヤ（３８）を静止固定させ、右クローラ（２）のみを直進走行同様の回転力で駆動して機体を左方向に微小旋回させる。 Further, at the neutral position of the steering lever (19), when the left turn detection switch (145a) is turned on by the left tilt of the operation piece (145), the left clutch (151) and the brake (153) are turned on during the fitting left turn operation. The left ring gear (38) is freely rotated by turning it off, while the right clutch (152) is turned on or off, the right brake (154) is turned on, the right ring gear (38) is fixedly stationary, and the right crawler ( Only the 2) is driven with the same rotational force as the straight traveling, and the aircraft is slightly turned leftward.
またさらに、操向レバー（１９）の中立位置で操作片（１４５）右傾動によって右旋回検出スイッチ（１４５ｂ）がオンとなるフィット右旋回操作時には、右クラッチ（１５２）及び右ブレーキ（１５４）をオフとさせて右リングギヤ（３８）を自由回転状態とさせる一方、右クラッチ（１５１）をオン或いはオフ、左ブレーキ（１５３）をオンとさせて左リングギヤ（３８）を静止固定させ、左クローラ（２）のみを直進走行同様の回転力で駆動して機体を右方向に微小旋回させる。 Further, during the fitting right turning operation in which the right turning detection switch (145b) is turned on by the right tilting of the operation piece (145) at the neutral position of the steering lever (19), the right clutch (152) and the right brake (154) are turned on. ) To turn off the right ring gear (38), while turning the right clutch (151) on or off, and turning on the left brake (153) to fix the left ring gear (38) to the left. Only the crawler (2) is driven with the same rotational force as that of the straight traveling, and the aircraft is slightly turned rightward.
このように、操作片（１４５）による左右旋回操作時には、操向モータ（２７）の旋回出力に関係なく左右クラッチ（１５１）（１５２）及びブレーキ（１５３）（１５４）によって左右のリングギヤ（３８）の回転を制御して、旋回側の走行クローラ（２）を自由回転状態とし、他側の走行クローラ（２）を直進走行同様の回転力で駆動して機体の進路を左右に修正するものである。 Thus, when the left and right turning operation is performed by the operation piece (145), the left and right ring gears (38) are operated by the left and right clutches (151) (152) and the brakes (153) (154) regardless of the turning output of the steering motor (27). Is controlled so that the traveling crawler (2) on the turning side is in a freely rotating state, and the traveling crawler (2) on the other side is driven with the same rotational force as the straight traveling to correct the course of the aircraft to the left and right. is there.
また、直進走行時や操作片（１４５）の左右旋回で右及び左ブレーキ（１５４）（１５３）のオン時に右及び左クラッチ（１５２）（１５１）をオンとするときには、操向モータ（２７）の出力軸（６２）には、ブレーキ（１５３）（１５４）力が作用して、別途軸ブレーキの設置も必要なく、操向モータ（２７）の出力軸（６２）を停止維持させることができる。 Further, when the right and left clutches (152) and (151) are turned on during straight traveling or when the right and left brakes (154) and (153) are turned on by turning the operation piece (145) left and right, the steering motor (27) A brake (153) (154) force acts on the output shaft (62) of the motor, and no separate shaft brake is required, and the output shaft (62) of the steering motor (27) can be stopped and maintained. .
（２） 走行クローラ
（１９） 操向レバー（操向操作具）
（２１） エンジン
（２２） ミッションンケース
（３３） 差動機構
（３５） 遊星ギヤ機構
（３６） サンギヤ
（３８） リングギヤ
（４６） センタギヤ
（１５１）（１５２） クラッチ
（１５３）（１５４） ブレーキ
(2) Traveling crawler (19) Steering lever (steering tool)
(21) Engine (22) Mission case (33) Differential mechanism (35) Planetary gear mechanism (36) Sun gear (38) Ring gear (46) Center gear (151) (152) Clutch (153) (154) Brake
Claims (1)
主変速レバー（６８）よりも右側に配設された前記操向ハンドル（１６２）の右側部に、旋回方向微調節用の操作片（１４５）を設け、前記操向ハンドル（１６２）を手で握った状態で指先により操作片（１４５）を左右操作して旋回方向の微調節を行うことができるように構成したことを特徴とするコンバイン。 In a combine equipped with a left and right traveling crawler (2), a steering handle (162), and a transmission case (22) for transmitting the driving force of the engine (21) to the traveling crawler (2).
An operation piece (145) for fine adjustment in the turning direction is provided on the right side of the steering handle (162) disposed on the right side of the main transmission lever (68) , and the steering handle (162) is manually operated. The combine configured to be able to finely adjust the turning direction by operating the operation piece (145) left and right with a fingertip in a gripped state.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2005315222A JP3930523B2 (en) | 2005-10-28 | 2005-10-28 | Combine |
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| JP2005315222A JP3930523B2 (en) | 2005-10-28 | 2005-10-28 | Combine |
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| JP2003174264A Division JP3766402B2 (en) | 2003-06-19 | 2003-06-19 | Combine |
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| JP2006096344A JP2006096344A (en) | 2006-04-13 |
| JP3930523B2 true JP3930523B2 (en) | 2007-06-13 |
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| JP2005315222A Expired - Lifetime JP3930523B2 (en) | 2005-10-28 | 2005-10-28 | Combine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5340682B2 (en) * | 2008-09-16 | 2013-11-13 | ヤンマー株式会社 | Combine |
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