JP3277360B2 - Traveling equipment for mobile farm machines - Google Patents

Traveling equipment for mobile farm machines

Info

Publication number
JP3277360B2
JP3277360B2 JP23776897A JP23776897A JP3277360B2 JP 3277360 B2 JP3277360 B2 JP 3277360B2 JP 23776897 A JP23776897 A JP 23776897A JP 23776897 A JP23776897 A JP 23776897A JP 3277360 B2 JP3277360 B2 JP 3277360B2
Authority
JP
Japan
Prior art keywords
steering
turning
hydraulic
traveling
shaft
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
Application number
JP23776897A
Other languages
Japanese (ja)
Other versions
JPH1095361A (en
Inventor
高 茂 實 日
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanma Agricultural Equipment Co Ltd
Original Assignee
Yanma Agricultural Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yanma Agricultural Equipment Co Ltd filed Critical Yanma Agricultural Equipment Co Ltd
Priority to JP23776897A priority Critical patent/JP3277360B2/en
Publication of JPH1095361A publication Critical patent/JPH1095361A/en
Application granted granted Critical
Publication of JP3277360B2 publication Critical patent/JP3277360B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Landscapes

  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
  • Guiding Agricultural Machines (AREA)
  • Harvester Elements (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は変速レバーで油圧変
速機構を変速操作して走行速度の変速を、また操向ハン
ドルで油圧操向機構を操向操作して機体の旋回をそれぞ
れ行うようにしたコンバインなど移動農機の走行装置に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of shifting the running speed by shifting a hydraulic transmission mechanism with a shift lever and turning the airframe by steering a hydraulic steering mechanism with a steering handle. The present invention relates to a traveling device of a mobile agricultural machine such as a combine.

【0002】[0002]

【発明が解決しようとする課題】エンジンからの駆動力
を、油圧変速機構及びギヤ差動機構を介しクローラなど
走行部に伝達して機体の走行を行うと共に、操向ハンド
ルの操作力を油圧操向機構を介しギヤ差動機構に伝達し
て機体の旋回を行う手段のものにあって、サンギヤ・プ
ラネタリギヤ・リングギヤから成る遊星ギヤで前記ギヤ
差動機構を構成し、例えば変速機構からの変速出力をサ
ンギヤに、操向機構からの旋回出力をリングギヤに入力
して、プラネタリギヤに連結する出力軸からの出力でも
って機体の走行及び旋回を行うようにしたクローラ式の
走行装置にあっては、前進時と後進時とで変速出力を正
逆に逆転させた場合、操向機構の作動方向は逆となっ
て、前進時と後進時では旋回方向が一致せず、したがっ
て旋回方向を一致させるためには操向ハンドルの操作方
向を前進時と後進時では逆とさせる必要があった。
The driving force from the engine is transmitted to a traveling unit such as a crawler via a hydraulic transmission mechanism and a gear differential mechanism to travel the body, and the operating force of a steering handle is hydraulically operated. Means for turning the body by transmitting to a gear differential mechanism via a directional mechanism, wherein the gear differential mechanism is constituted by a planetary gear comprising a sun gear, a planetary gear and a ring gear, for example, a shift output from a transmission mechanism. In a crawler-type traveling device that inputs and outputs the turning output from the steering mechanism to the ring gear and outputs the output from an output shaft connected to the planetary gear to the sun gear, When the gearshift output is reversed between forward and reverse, the operating direction of the steering mechanism is reversed, and the turning direction does not match when moving forward and when moving backward. The order had to be reversed in time backward and during forward operation direction of the steering wheel.

【0003】[0003]

【課題を解決するための手段】然るに本発明は、エンジ
ンからの駆動力を直進走行用油圧変速機構及びギヤ差動
機構を介し走行クローラに伝達して機体を変速自在に直
進走行させると共に、操向ハンドルの旋回操作により制
御する旋回用油圧操向機構及びギヤ差動機構を介してエ
ンジンからの駆動力を走行クローラに伝達して、左右走
行クローラの回転を異ならせて機体の旋回を行うと共
に、前後進の何れにおいても操向ハンドルの回動操作方
向と機体の旋回方向とを一致させる移動農機の走行装置
において、前記の直進走行用油圧変速機構に連結する変
速レバーと、前記の旋回用油圧操向機構に連結する操向
ハンドルとを、変速及び旋回連動機構に連動連結させ、
走行状態で操向ハンドルの旋回操作によって直進走行用
油圧変速機構の直進走行速度を減速させるように構成
し、良好な運転を可能とさせるものである。
In the present invention, the driving force from the engine is transmitted to the traveling crawler via a straight traveling hydraulic speed change mechanism and a gear differential mechanism to cause the vehicle to travel in a freely variable speed and operate. Control by turning the steering wheel
Through the hydraulic steering mechanism for turning and the gear differential mechanism
And transmitting the driving force from the engine to the travel crawler and with different rotation of the right and left traveling crawlers making a turn of the machine body co
The forward-reverse traveling device of the mobile agricultural machine to match the turning direction of the turning operation direction and the body of the steering wheel in any
In the above , a shift lever connected to the straight traveling hydraulic transmission mechanism and a steering handle connected to the turning hydraulic steering mechanism are interlockedly connected to a speed change and turning interlocking mechanism,
For straight running by turning the steering wheel in the running state
The straight traveling speed of the hydraulic transmission mechanism is configured to be reduced to enable good operation.

【0004】また、操向ハンドルと油圧操向機構とを連
動連結する操向リンク系に旋回出力逆転手段を介設させ
ると共に、交叉する2本の軸回りに回動させる操作部材
を設け、操向ハンドルと油圧操向機構並びに変速レバー
と油圧変速機構を前記操作部材によって連結させ、変速
レバーを中立に保持しているときに操向ハンドルの操作
を非作用させるように構成し、アーム及びリンクなどで
簡単に構成する旋回出力逆転手段を操向用リンク系に容
易に組込んで、旋回時のハンドル操作感覚を前後進とも
同一とさせた良好な運転を可能とさせるものである。
In addition, a turning output reversing means is provided in a steering link system for interlocking the steering handle and the hydraulic steering mechanism.
Operating member for rotating around two intersecting axes
The steering handle, hydraulic steering mechanism and shift lever
And the hydraulic transmission mechanism are connected by the operating member,
Operation of the steering handle when the lever is held neutral
And the turning output reversing means, which is simply composed of arms and links, is easily incorporated into the steering link system, so that the handle operation feeling during turning is the same for both forward and backward movements. This allows for a smooth driving.

【0005】また、油圧変速機構と変速レバーの間を連
動連結する変速リンク系に、旋回出力逆転手段を連動連
結させると共に、交叉する2本の軸回りに回動させる操
作部材を設け、操向ハンドルと油圧操向機構並びに変速
レバーと油圧変速機構を前記操作部材によって連結さ
せ、変速レバー操作が操作部材から油圧操向機構に伝わ
るように構成し、変速レバー及び操向ハンドルと各変速
及び操向機構とを各リンク系で容易且つ正確に連結させ
ると共に、旋回出力逆転手段をこれらリンク系に容易に
組込んで、簡単な手段のもので旋回時の操作感覚を前後
進とも同一とさせる良好な運転を可能とさせるものであ
る。
Further, the shift link system interlocked connection between the hydraulic transmission mechanism and shift lever, Rutotomoni is interlockingly connected with the turning output reversing means, Misao to rotate about the axis of the two intersecting
Operating members, steering handle and hydraulic steering mechanism, and shifting
The lever and the hydraulic transmission mechanism are connected by the operating member.
The transmission lever operation is transmitted from the operating member to the hydraulic steering mechanism.
The speed change lever and the steering handle and each speed change and steering mechanism are easily and accurately connected by each link system, and the turning output reversing means is easily incorporated into these link systems to provide a simple structure. By this means, it is possible to perform a good driving operation in which the operation sensation at the time of turning is the same in forward and backward traveling.

【0006】[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は主変速レバー及び操向ハンドル
の操作系の斜視説明図、図2はコンバインの全体側面
図、図3は同平面図であり、図中(1)は走行クローラ
(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機である脱穀部、(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)は丸形操向ハンドル
(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 a perspective explanatory view of an operation system of a main shift lever and a steering handle, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view of the combine, wherein (1) shows a traveling crawler (2). (3) is a machine frame installed on the track frame (1), (4) is a feed chain (5) stretched to the left side, and has a built-in handling cylinder (6) and a processing cylinder (7). A threshing unit, which is a threshing machine, (8) is a cutting unit provided with a cutting blade (9) and a grain culm transport mechanism (10), and (11) is moved up and down the cutting unit (8) via a cutting frame (12). A hydraulic cylinder, (13) a straw processing unit that faces the end of a straw chain (14), (15) a grain tank that carries in the grains from the threshing unit (4) via a fryer cylinder (16). , (17) is a discharge auger for carrying out the grains of the tank (15) outside the machine, and (18) is a round steering. Bundle (19) and the driver's seat (20) operating cabin comprising etc., constitute (21) as is an engine provided with the operating cabin (18) downward, threshing continuously harvests culms.

【0007】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対の第1油
圧ポンプ(23)及び第1油圧モータ(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対の第2油圧ポンプ(26)及び第2油圧モータ
(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)に第1及び第2油圧ポンプ(23)(2
6)の入力軸(29)を伝達ベルト(30)を介し連動
連結させて、これら油圧ポンプ(23)(26)の駆動
を行うように構成している。
As shown in FIG. 4, the traveling crawler (2)
The transmission case (22) for driving the vehicle is a traveling hydraulic continuously variable transmission mechanism (25) which is a main transmission mechanism including a pair of a first hydraulic pump (23) and a first hydraulic motor (24).
And a turning hydraulic continuously variable transmission mechanism (28), which is a steering mechanism including a pair of second hydraulic pumps (26) and a second hydraulic motor (27), and an output of the engine (21). The first and second hydraulic pumps (23) (2) are mounted on the shaft (21a).
The input shaft (29) of 6) is interlockingly connected via a transmission belt (30) to drive these hydraulic pumps (23) and (26).

【0008】そして前記第1油圧モータ(24)の出力
軸(31)に、副変速機構(32)及び差動機構(3
3)を介し走行クローラ(2)の駆動輪(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、各遊星ギ
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(3
7)と、これらプラネタリギヤ(37)に噛合うリング
ギヤ(38)などで形成している。
An auxiliary transmission mechanism (32) and a differential mechanism (3) are connected to an output shaft (31) of the first hydraulic motor (24).
3) The driving wheels (34) of the traveling crawler (2) are interlocked via 3). The differential mechanism (33) has a pair of symmetrical planetary gear mechanisms (35) and (35). The planetary gear mechanism (35) includes one sun gear (36) and three planetary gears (3) meshing on the outer periphery of the sun gear (36).
7) and a ring gear (38) meshing with these planetary gears (37).

【0009】前記プラネタリギヤ(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
てサンギヤ軸(39)とは同一軸芯上に配置させ、キャ
リヤ軸(40)に回転自在に軸支させている。
The planetary gear (37) is rotatably supported on a carrier (41) of a carrier shaft (40) coaxially with a sun gear shaft (39), and sandwiches the left and right sun gears (36) and (36). The left and right carriers (41) are arranged to face each other, and the ring gear (38) has internal teeth (38a) meshing with each planetary gear (37) and is arranged on the same axis as the sun gear shaft (39). The shaft (40) is rotatably supported on the shaft (40).

【0010】また、走行用の油圧式無段変速機構(2
5)は第1油圧ポンプ(23)の回転斜板の角度変更調
節により第1油圧モータ(24)の正逆回転と回転数の
制御を行うもので、第1油圧モータ(24)の回転出力
を出力軸(31)の伝達ギヤ(42)より各ギヤ(4
3)(44)(45)及び副変速機構(32)を介し
て、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。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)間に各
1対の低速用ギヤ(50)(48)・中速用ギヤ(5
1)(52)・高速用ギヤ(53)(54)を設けて、
中央位置のギヤ(51)のスライド操作によってこれら
低速・中速・高速の切換えを可能とさせるように構成し
ている(なお低速・中速間及び中速・高速間には中立を
有するものである)。また前記ブレーキ軸(49)には
車速検出ギヤ(55)を設けると共に、該ギヤ(55)
の回転数より車速を検出する車速センサ(56)を設け
ている。なお、刈取部(8)に回転力を伝達する刈取P
TO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。
A traveling hydraulic continuously variable transmission mechanism (2)
5) Controlling the forward / reverse rotation and rotation speed of the first hydraulic motor (24) by adjusting the angle change of the rotary swash plate of the first hydraulic pump (23), and the rotation output of the first hydraulic motor (24). From the transmission gear (42) of the output shaft (31) to each gear (4
3) A center gear (46) fixed to the sun gear shaft (39) via (44) (45) and the auxiliary transmission mechanism (32).
To rotate the sun gear (36). 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 pair of low-speed gears (50) and (48) and a medium-speed gear (5) are provided between the shaft (47) and the brake shaft (49).
1) (52) ・ Providing high-speed gears (53) and (54)
The low speed, the medium speed, and the high speed can be switched by sliding the gear (51) at the center position (there is a neutral state between the low speed and the medium speed and between the medium speed and the high speed. is there). The brake shaft (49) is provided with a vehicle speed detection gear (55), and the gear (55)
A vehicle speed sensor (56) for detecting the vehicle speed from the number of revolutions is provided. It should be noted that the cutting P transmitting the rotational force to the cutting unit (8).
The transmission gear (42) of the output shaft (31) is meshed with the PTO input gear (58) of the TO shaft (57).

【0011】そして、前記センタギヤ(46)を介しサ
ンギヤ軸(39)に伝達された第1油圧モータ(24)
からの駆動力を、左右の遊星ギヤ機構(35)を介しキ
ャリヤ軸(40)に伝達させると共に、該キャリヤ軸
(40)に伝達された回転を左右各一対の減速ギヤ(6
0)(61)を介し左右の駆動輪(34)の左右輪軸
(34a)にそれぞれ伝えるように構成している。
The first hydraulic motor (24) transmitted to the sun gear shaft (39) via the center gear (46).
Is transmitted to the carrier shaft (40) through the left and right planetary gear mechanisms (35), and the rotation transmitted to the carrier shaft (40) is transmitted to the pair of left and right reduction gears (6).
0) and (61) to the left and right wheel shafts (34a) of the left and right drive wheels (34), respectively.

【0012】さらに、旋回用の油圧式無段変速機構(2
8)は第2油圧ポンプ(26)の回転斜板の角度変更調
節により第2油圧モータ(27)の正逆回転と回転数の
制御を行うもので、第2油圧モータ(27)の出力軸
(62)の出力ギヤからギヤ伝達機構(63)を介し旋
回入力軸(64)の入力ギヤ(65a)(65b)に回
転出力を伝達し、右側のリングギヤ(38)の外歯(3
8b)を対しては直接的に、また左側のリングギヤ(3
8)の外歯(38b)に対しては逆転軸(66)の逆転
ギヤ(67)を介し伝えて、第2油圧モータ(27)の
正転時に左右のリングギヤ(38)を左右同一回転数で
左ギヤ(38)を正転、右ギヤ(38)を逆転とさせる
ように構成している。
Further, a hydraulic stepless speed change mechanism for turning (2)
8) The forward / reverse rotation of the second hydraulic motor (27) and the control of the rotation speed are performed by adjusting the angle change of the rotary swash plate of the second hydraulic pump (26), and the output shaft of the second hydraulic motor (27) is controlled. The rotational output is transmitted from the output gear of (62) to the input gears (65a) and (65b) of the turning input shaft (64) via the gear transmission mechanism (63), and the external teeth (3) of the right ring gear (38) are transmitted.
8b) directly and on the left ring gear (3
The external gear (38b) of (8) is transmitted through the reverse gear (67) of the reverse rotation shaft (66) so that the left and right ring gears (38) rotate at the same rotational speed when the second hydraulic motor (27) rotates forward. , The left gear (38) is rotated forward and the right gear (38) is rotated reversely.

【0013】而して旋回用の第2油圧モータ(27)の
駆動を停止させ左右リングギヤ(38)を静止固定させ
た状態で、走行用の第1油圧モータ(24)の駆動を行
うと、第1油圧モータ(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)・キャリヤ(41)及び減速ギヤ(60)
(61)を介し左右の輪軸(34a)に左右同回転方向
の同一回転数で伝達されて、機体の前後直進走行が行わ
れる。一方、走行用の第1油圧モータ(24)の駆動を
停止させ左右のサンギヤ(36)を静止固定させた状態
で、旋回用の第2油圧モータ(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、
また右側の遊星ギヤ機構(35)が逆或いは正回転し
て、左右走行クローラ(2)の駆動方向を前後逆方向と
させて機体を左或いは右にその場でスピンターンさせる
ものである。
When the driving of the first hydraulic motor (24) for driving is stopped while the driving of the second hydraulic motor (27) for turning is stopped and the left and right ring gears (38) are stationary. The rotation output from the first hydraulic motor (24) is transmitted from the center gear (46) to the left and right sun gears (36) at the same speed, and the planetary gears (37) and the carrier (41) of the left and right planetary gear mechanisms (35) and the reduction gear. Gear (60)
(61) is transmitted to the left and right wheel sets (34a) at the same rotational speed in the same rotational direction in the left and right directions, so that the aircraft travels straight forward and backward. On the other hand, when the driving of the first hydraulic motor (24) for driving is stopped and the left and right sun gears (36) are stationary and fixed, the second hydraulic motor for turning (27) is driven forward and reverse to rotate the left and right sun gears (36). The planetary gear mechanism (35) rotates forward or backward,
In addition, the right planetary gear mechanism (35) rotates reversely or forwardly to make the driving direction of the left and right traveling crawlers (2) forward and backward, thereby causing the body to spin turn right or left on the spot.

【0014】また走行用の第1油圧モータ(24)を駆
動させながら、旋回用の第2油圧モータ(27)を駆動
して機体を左右に旋回させる場合には旋回半径の大きい
旋回を可能にできるもので、その旋回半径は左右走行ク
ローラ(2)の速度に応じ決定される。
When the first hydraulic motor (24) for driving is driven and the second hydraulic motor (27) for turning is driven to turn the body left and right, turning with a large turning radius is enabled. The turning radius is determined according to the speed of the left and right traveling crawlers (2).

【0015】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
結する操向ハンドル(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(6
9)を走行変速及び操向リンク系であるリンク機構(7
0)(71)介し走行及び操向用の無段変速機構(2
5)(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 hydraulic stepless transmission mechanism (25) for traveling and the hydraulic stepless transmission mechanism (28) for turning. And a steering handle (19) to be linked to the speed change and turning interlocking mechanism (69).
9) is a link mechanism (7) which is a traveling speed change and steering link system.
0) and (71) a continuously variable transmission mechanism (2) for traveling and steering.
5) It is linked to the control levers (72) and (73) of (28).

【0016】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)とは直交する前
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 bent portion (68a) of the main transmission lever (68) on the cylinder shaft (74) so as to be able to swing left and right, and a body side. A fixed mounting plate (78) fixedly mounted on the frame (76) of the main body and supporting the rotating plate (75) rotatably back and forth via a first pivot (77) in the left-right direction; and the pivot (77). A) a speed change operation member (80) that is connected to a rotation plate (75) via a second pivot (79) in the front-rear direction orthogonal to the second direction and is provided rotatably around the shaft (79); A steering operation member (81) rotatably connected around an axis of the pivot (79), and a second pivot (79) of the speed change and steering operation members (80) (81).
Means that the operation output sections (80a) (81a) at the eccentric position are linked to the speed change and steering link mechanisms (70) (71).

【0017】前記変速及び操向リンク機構(70)(7
1)は、連動機構(69)後方位置で本機フレーム(7
6)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
基端を固設する旋回出力逆転手段である操向アーム(8
5)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(8
2)の右端に固設する操向出力アーム(91)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)(91)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)(1
00)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(9
9)(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(7
2)(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 speed change and steering link mechanism (70) (7)
1) is the frame (7) at the rear of the interlocking mechanism (69).
6) a speed change arm (84) which is supported on the side via a swing cylinder shaft (83) outside the swing shaft (82), and turning output reversing means for fixing a base end to the swing shaft (82). Steering arm (8
5) a universal joint shaft (88) (89) connecting between each operation output shaft (86) (87) of the output section (80a) (81a) and each arm (84) (85); Dynamic axis (8
2) a gear output rotatably provided on a steering output arm (91) fixed to the right end and an intermediate shaft (94) attached to a fulcrum bearing (93) of a pivot (92) of the driving cabin (18). And a first swing arm (95) (96) for steering, the arms (84) (91), and a first swing arm (95).
(96) A universal joint type first rod (97) (98) for speed change and steering which connects the respective ends of each other, and a first swing arm (95) (96) provided on the intermediate shaft (94). Speed change and steering second swing arm (99) (1
00), a shift and steering cylinder shaft (103) (104) rotatably supported by a support shaft (102) mounted on a bearing plate (101) above the transmission case (22); 103) (104), a first swing arm (105) (106) having a base end fixed thereto, and the second swing arm (9).
9) A speed change and steering universal joint type second rod (107) (108) connecting between the respective distal ends of (100), and a second rocker having a base end fixed to the cylindrical shaft (103) (104). Moving arm (109) (110) and the control lever (7
2) a speed change operation member (80) including a speed change and steering universal joint type third rod (111) (112) for connecting the respective ends of (73) to each other, and centering on the first pivot (77).
Control lever (72) for running by rotation of
And a steering control lever (73) operated by rotation of the steering operation member (81) about the second pivot (79) during traveling to perform gear shifting and steering control. are doing.

【0018】一方前記操向ハンドル(19)下端のハン
ドル操作軸(113)にギヤ(114)を設けて、この
後方の回転軸(115)に取付けるセクタギヤ(11
6)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
操向リンク機構である自在継手形操向第1ロッド(12
0)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、前記ハンドル(1
9)の回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 a handle operation shaft (113) at the lower end of the steering handle (19), and a sector gear (11) attached to the rear rotation shaft (115).
6) The gear (114) meshes with the steering shaft (117) disposed below the position of the main speed change lever (68).
The first swing arm (118) and the rotating shaft (115)
A universal joint type steering first rod (12
0), and a second swing arm (121) integrated with the first swing arm (118) of the steering shaft (117),
The front end of the universal joint shaft (89) is connected to the front end of the universal joint type steering second rod (122) by the handle (1).
The steering operation member (81) is configured to rotate around the second pivot (79) by the rotation operation of (9).

【0019】また、前記ハンドル操作軸(113)のギ
ヤ(114)下方に中立位置決め板(123)を設けて
いて、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(12
6)の第1揺動アーム(127)と前記検出リンク(1
25)の他端長孔(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)との各先端間を減速リンク機構である自在継
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)で連結させて、走行状態で前記ハンドル
(19)の操向量を大とする程第2減速ロッド(13
3)を下方に引張っ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 handle operation shaft (113), and a projecting shaft (124) on the lower surface of the positioning plate (123) is provided.
To one end of a steering detection link (125), and a reduction arm shaft (12) disposed on the right side of the rotation shaft (115).
6) the first swing arm (127) and the detection link (1).
25) is connected to the other long hole (125a) via a shaft (128), and the reduction arm (129) of the steering shaft (117) and the second swing arm (130) of the reduction arm shaft (126) are connected. ) Are connected by a universal joint type first deceleration rod (131) which is a deceleration link mechanism, and the rightmost deceleration transmission shaft (132) of the speed change operation member (80) is connected to the second deceleration transmission shaft (132).
The other end of the swing arm (130) is connected by a universal joint type second deceleration rod (133), and the larger the steering amount of the handle (19) in the running state, the larger the second deceleration rod (13).
3) is pulled downward to reduce the traveling speed.

【0020】而して、前記変速及び操向操作部材(8
0)(81)を軸回りに回動可能とさせる第2枢軸(7
9)と、操向アーム(85)と継手軸(89)との自在
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)と自
在継手軸(88)(89)との自在継手部(88b)
(89b)と、第1枢軸(77)とを前記ライン(L
1)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)と継手軸(88)と
の自在継手部(88a)と前記継手部(89a)とを前
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、主変速レバー
(68)及び操向ハンドル(19)の中立保持時に、こ
れら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)の軸回り
に回動させるのみとさせて、継手軸(88)(89)に
は操作力を作用させないものである。
The speed change and steering operation member (8)
0) (81) can be rotated around the axis.
9) and the universal joint (89a) of the steering arm (85) and the joint shaft (89) are positioned on the horizontal line (L1) in the front-rear direction, and the operation output shafts (86) (87) Joint part (88b) between the universal joint shaft (88) and the universal joint shaft (89)
(89b) and the first pivot (77) are connected to the line (L).
1) is located on a horizontal horizontal line (L2) orthogonal to the line (L2). Further, the universal joint (88a) between the transmission arm (84) and the joint shaft (88) and the joint (89a) are connected to the line (L2). ) And the joint (88a) as close to the joint (89a) as possible (at a position as close as possible) to the joint (89a). When one of these is operated during neutral holding of the direction handle (19), each operating member (80)
(81) is rotated only about the first and second pivots (77) and (79), and no operating force is applied to the joint shafts (88) and (89).

【0021】そして図9にも示す如く、主変速レバー
(68)の前後進操作で、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)を引張って或いは押して変速
アーム(84)を動作させて走行速度の前後進の切換え
を行うと共に、図11に示す如くこの状態中(主変速レ
バー(68)が中立以外のとき)に操向ハンドル(1
9)の回動操作で第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)を引張って或いは押して操向アーム(8
5)を動作させて機体の左及び右旋回を行うものであ
る。即ち主変速の中立時に旋回操作を行っても継手軸
(89)はライン(L1)を中心とした円錐面上で移動
する状態となって継手部(89a)(89b)間の距離
は変化せず、したがって操向アーム(85)は動作しな
い。そして主変速の中立以外で旋回操作が行われるとき
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て、第
2油圧モータ(27)の回転を前進時と後進時では逆方
向とさせるように構成したものである。
As shown in FIG. 9, when the operation member (80) is inclined forward and backward by an angle (α1) (α2) about the first pivot (77) by the forward / reverse operation of the main speed change lever (68). The speed change arm (84) is operated by pulling or pushing the joint shaft (88) to switch the traveling speed between forward and backward, and during this state as shown in FIG. 11 (when the main speed change lever (68) is other than neutral). ) To the steering wheel (1
When the operating member (81) is tilted up and down by an angle (β1) (β2) about the second pivot (79) in the turning operation of 9), the joint shaft (89) is pulled or pushed to pull the steering arm (8).
5) is operated to make a left and right turn of the body. That is, the joint shaft (89) moves on a conical surface centered on the line (L1) even when the turning operation is performed during the neutral time of the main shift, and the distance between the joint portions (89a) and (89b) changes. Therefore, the steering arm (85) does not operate. The steering arm (85) operates when the turning operation is performed at a time other than the neutral position of the main shift, and the steering arm (85) operates in the front and rear reverse direction when switching to the forward / backward movement. The rotation of (27) is configured to be in the opposite direction between forward movement and reverse movement.

【0022】つまり、走行用の第1油圧モータ(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
回用の第2油圧モータ(27)による遊星ギヤ機構(3
5)の作用は前進時と後進時では逆となるもので、前進
時と後進時のハンドル(19)操作による機体の旋回方
向を一致させるため、第1油圧モータ(24)の逆回転
(後進)時には第2油圧ポンプ(26)の斜板角度を逆
方向に切換えて(第1及び第2油圧ポンプ(23)(2
6)の入力軸の回転方向は一定)、第2油圧モータ(2
7)の回転を前進時と後進時では逆方向とさせるもので
ある。
That is, the first hydraulic motor for traveling (24)
Assuming that the forward rotation of the motor is forward, the planetary gear mechanism (3) by the second hydraulic motor for turning (27) at the time of reverse rotation during reverse rotation.
The operation of 5) is reversed between forward and reverse. In order to match the turning direction of the body by operating the handle (19) between forward and reverse, the first hydraulic motor (24) is rotated in reverse (reverse). ), The swash plate angle of the second hydraulic pump (26) is switched to the opposite direction (first and second hydraulic pumps (23), (2)).
6) The rotation direction of the input shaft is constant), and the second hydraulic motor (2
The rotation of 7) is made to be in the opposite direction between the forward movement and the reverse movement.

【0023】つまりこの場合、前進操作時の操作部材
(80)が中立より前方の角度(α1)側に傾いて、ハ
ンドル(19)の右回動操作によって第2ロッド(12
2)を引張り操作部材(81)を下方向の角度(β2)
側に傾けるとき、操作部材(81)の出力部(81a)
を操向アーム(85)側に近づけて、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5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て、旋回用の
第2油圧モータ(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。
That is, in this case, the operating member (80) at the time of the forward operation is inclined toward the angle (α1) forward from the neutral position, and the second rod (12) is turned by the right rotation operation of the handle (19).
2) Pull the operation member (81) downward angle (β2)
Output part (81a) of the operating member (81) when tilted to the side
Is brought closer to the steering arm (85) side, and the steering arm (85) is rotated about the swing shaft (82) in a direction (counterclockwise in FIG. 5) away from the operation member (81). The control lever (73) is rotated downward via the first and second rods (98) (108) and the like, and the second hydraulic motor (27) for rotation is rotated forward. That is, the aircraft is turned right by forward movement (the speed of the traveling crawler (2) is large on the left side,
The right side is small).

【0024】また、上述の前進操作時で、ハンドル(1
9)の左回動操作によって第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
るとき、操作部材(81)の出力部(81a)を操作ア
ーム(85)側より遠ざけて、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5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て、前記第2油圧
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。
In the above-mentioned forward operation, the steering wheel (1
When the second rod (122) is pushed up by the left rotation operation of (9) and the operation member (81) is tilted to the upward angle (β1) side, the output portion (81a) of the operation member (81) is moved to the operation arm (85). ) Side, the steering arm (85) is rotated about the swing shaft (82) in a direction (clockwise in FIG. 5) to approach the operation member (81), and the control lever (73) is raised. And the second hydraulic motor (27) is rotated in the reverse direction. That is, the body is turned leftward by moving forward (the speed of the traveling crawler (2) is large on the right side and small on the left side).

【0025】さらに、後進操作時の操作部材(80)が
中立より後方の角度(α2)側に傾いて、ハンドル(1
9)の右回動操作によって第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
とき、操作部材(81)の出力部(81a)を操向アー
ム(85)側より遠ざけて、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5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て、前記第2油圧モ
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。
Further, the operation member (80) at the time of the reverse operation is inclined toward the angle (α2) rearward from the neutral position, and
When the second rod (122) is pulled by the right rotation operation of 9) and the operation member (81) is inclined to the downward angle (β2) side, the output portion (81a) of the operation member (81) is moved to the steering arm (81). 85), the steering arm (85) is rotated about the swing shaft (82) in a direction (clockwise in FIG. 5) to approach the operation member (81), and the control lever (73) is turned. By rotating upward, the second hydraulic motor (27) is reversely rotated. That is, the aircraft turns to the right in reverse (the speed of the traveling crawler (2) is large on the left and small on the right).
Let it.

【0026】またさらに、上述とは逆に後進操作時で、
ハンドル(19)の左回動操作によって、操作部材(8
1)を上方向の角度(β1)側に傾けるとき、操作部材
(81)の出力部(81a)を操作部材(81)側に近
づけて、揺動軸(82)を中心として操向アーム(8
5)を操作部材(81)より遠ざける方向(図5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て、前記第2油圧モータ(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)とさせる。
Furthermore, contrary to the above, when the vehicle is moving backward,
By turning the handle (19) to the left, the operation member (8
When tilting 1) toward the upward angle (β1), the output portion (81a) of the operating member (81) is brought closer to the operating member (81), and the steering arm (82) is pivoted about the swing shaft (82). 8
5) is rotated in a direction (counterclockwise in FIG. 5) away from the operation member (81), and the control lever (73) is rotated.
Is rotated downward to rotate the second hydraulic motor (27) forward. In other words, the aircraft is caused to make a reverse left turn (the speed of the traveling crawler (2) is high on the right side and low on the left side).

【0027】このように前進及び後進時における旋回操
作にあっては、操向アーム(85)の動きを逆方向とさ
せて、前後進の何れにおいても操向ハンドル(19)の
回動操作方向と機体の旋回方向とを一致させるものであ
る。
As described above, the turning operation of the steering arm (85) is performed in the reverse direction during the turning operation at the time of the forward and backward movements, and the turning operation direction of the steering handle (19) in both the forward and backward movements. And the turning direction of the aircraft.

【0028】なお、図15は機体の左旋回時における操
向ハンドル(19)の切れ角と左右走行クローラ(2)
の速度の関係を示すもので、ハンドル(19)の切れ角
が大となる程左右走行クローラ(2)の速度差は大とな
ると共に、これら左右走行クローラ(2)の平均速度と
なる機体中心速度も走行速度(高速・標準・低速)状態
に応じて減速されるものであって、機体の右旋回時にお
いても左右クローラ(2)が逆の関係となるだけで同様
のものである。
FIG. 15 shows the turning angle of the steering handle (19) and the left-right traveling crawler (2) when the body turns to the left.
The speed difference between the left and right traveling crawlers (2) increases as the steering angle of the steering wheel (19) increases, and the center of the body becomes the average speed of the left and right traveling crawlers (2). The speed is also reduced in accordance with the traveling speed (high speed / standard speed / low speed), and is the same even when the body turns right, except that the left and right crawlers (2) have the opposite relationship.

【0029】また図12にも示す如く、前記操向ハンド
ル(19)に設ける検出リンク(125)は中立位置よ
り右或いは左旋回操作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)を常に引張る状態とさせて、
前進操作時の操作部材(80)が角度(α1)側に傾い
てるときには、継手部(88a)(88b)間の距離を
縮め、また後進操作時の操作部材(80)が角度(α
2)側に傾いているときには、継手部(88a)(88
b)間の距離を大きくして、変速アーム(84)をそれ
ぞれ中立方向の低速側に変位させて、その旋回量に応じ
た減速を行うものである。
As shown in FIG. 12, the detection link (125) provided on the steering handle (19) moves the first swing arm (127) in the same direction in either the right or left turning operation from the neutral position. By rotating in the range of the angle (θ), the second deceleration rod (133) is always pulled,
When the operating member (80) at the time of the forward operation is inclined toward the angle (α1), the distance between the joints (88a) and (88b) is reduced, and the operating member (80) at the time of the reverse operation is moved to the angle (α).
2) When inclined to the side, the joints (88a) (88
b), the distance between them is increased, and the speed change arms (84) are respectively displaced toward the low speed side in the neutral direction to perform deceleration according to the turning amount.

【0030】さらに、変速及び操向の操作力を伝達する
前記第1ロッド(97)(98)と揺動アーム(95)
(96)の自在継手部(97a)(98a)の中心を、
運転キャビン(18)の回動支点軸(92)位置に一致
させて、変速及び操向の中立保持においてはこれらの操
作系を取外すことなく運転キャビン(18)の前方向へ
の回動を可能とさせるように構成している。
Further, the first rods (97) and (98) and the swing arm (95) for transmitting the operating force for shifting and steering.
The center of the universal joint (97a) (98a) of (96)
The driving cabin (18) can be turned forward without removing these operation systems when shifting and steering is kept neutral by matching the position of the rotation fulcrum shaft (92) of the driving cabin (18). It is configured to be.

【0031】ところで、図4及び図14に示す如く、前
記第1及び第2油圧ポンプ(23)(26)と第1及び
第2油圧モータ(24)(27)とをそれぞれループ油
圧回路(134)(135)を介し正逆自在に接続さ
せ、前記第1及び第2油圧モータ(24)(27)の出
力軸(31)(62)には、電磁弁(136)(13
7)の作動によって出力軸(31)(62)を静止保持
する走行停止及び直進固定用の走行及び旋回用ブレーキ
装置(138)(139)を設けると共に、前記駐車ブ
レーキ軸(49)にはブレーキ軸(49)を静止保持す
る駐車ブレーキ装置(140)を設けている。
As shown in FIGS. 4 and 14, the first and second hydraulic pumps (23) and (26) and the first and second hydraulic motors (24) and (27) are respectively connected to a loop hydraulic circuit (134). ) (135) so as to be freely reversible, and the output shafts (31) (62) of the first and second hydraulic motors (24) (27) are provided with solenoid valves (136) (13).
7) The running and turning brake devices (138) and (139) for stopping the running of the output shafts (31) and (62) and for fixing the straight running by the operation of 7) are provided, and the parking brake shaft (49) is provided with a brake. A parking brake device (140) for holding the shaft (49) stationary is provided.

【0032】[0032]

【発明の効果】以上実施例から明らかなように本発明
は、エンジン(21)からの駆動力を直進走行用油圧変
速機構(25)及びギヤ差動機構(33)を介し走行ク
ローラ(2)に伝達して機体を変速自在に直進走行させ
ると共に、操向ハンドル(19)の旋回操作により制御
する旋回用油圧操向機構(28)及びギヤ差動機構(3
3)を介してエンジン(21)からの駆動力を走行クロ
ーラ(2)に伝達して、左右走行クローラ(2)の回転
を異ならせて機体の旋回を行うと共に、前後進の何れに
おいても操向ハンドル(19)の回動操作方向と機体の
旋回方向とを一致させる移動農機の走行装置において、
前記の直進走行用油圧変速機構(25)に連結する変速
レバー(68)と、前記の旋回用油圧操向機構(28)
に連結する操向ハンドル(19)とを、変速及び旋回連
動機構(69)に連動連結させ、走行状態で操向ハンド
ル(19)の旋回操作によって直進走行用油圧変速機構
(25)の直進走行速度を減速させるように構成し、良
好な運転を可能とさせることができるものである。
As is apparent from the above embodiments, the present invention provides a traveling crawler (2) which receives a driving force from an engine (21) via a hydraulic traveling mechanism (25) for straight traveling and a gear differential mechanism (33). It is transmitted to together to freely straight traveling shift the body, controlled by the turning operation of the steering wheel (19)
Turning hydraulic steering mechanism (28) and gear differential mechanism (3)
3) The driving force from the engine (21) is
Is transmitted to the over La (2), together with the varied rotation of the right and left traveling crawlers (2) making a turn of the aircraft, the turning of the turning operation direction and the body of the steering wheel in either forward and backward (19) In the traveling device of the mobile agricultural machine that matches the direction ,
A shift lever (68) connected to the straight traveling hydraulic transmission mechanism (25); and the turning hydraulic steering mechanism (28).
And a steering handle (19) coupled to the gearshift and turning interlocking mechanism (69), and in a traveling state, turning operation of the steering handle (19) causes a hydraulic transmission mechanism for straight running.
(25) The straight running speed is reduced so as to enable good driving.

【0032】また、操向ハンドル(19)と油圧操向機
構(28)とを連動連結する操向リンク系(71)に旋
回出力逆転手段(85)を介設させると共に、交叉する
2本の軸(77)(79)回りに回動させる操作部材
(80)(81)を設け、操向ハンドル(19)と油圧
操向機構(28)並びに変速レバー(68)と油圧変速
機構(25)を前記操作部材(80)(81)によって
連結させ、変速レバー(68)を中立に保持していると
きに操向ハンドル(19)の操作を非作用させるように
構成し、アーム及びリンクなどで簡単に構成する旋回出
力逆転手段(85)を操向用リンク系(71)に容易に
組込んで、旋回時のハンドル操作感覚を前後進とも同一
とさせた良好な運転を可能とさせることができるもので
ある。
Further, Rutotomoni is interposed between the steering wheel (19) Hydraulic steering mechanism (28) and the interlocking connection to the steering link system the turning output reverse rotation means (71) (85), intersecting
Operation member for rotating around two shafts (77) and (79)
(80) (81) provided, steering handle (19) and hydraulic pressure
Steering mechanism (28), shift lever (68) and hydraulic shift
The mechanism (25) is operated by the operating members (80) and (81).
And the gearshift lever (68) is held neutral.
To deactivate the operation of the steering handle (19)
The turning output reversing means (85), which is easily constituted by an arm and a link, is easily incorporated into the steering link system (71), so that the steering wheel operating feeling during turning is the same for both forward and backward movements. It is possible to make the operation possible.

【0033】また、油圧変速機構(25)と変速レバー
(68)の間を連動連結する変速リンク系(70)に、
旋回出力逆転手段(85)を連動連結させると共に、交
叉する2本の軸(77)(79)回りに回動させる操作
部材(80)(81)を設け、操向ハンドル(19)と
油圧操向機構(28)並びに変速レバー(68)と油圧
変速機構(25)を前記操作部材(80)(81)によ
って連結させ、変速レバー(68)操作が操作部材(8
0)(81)から油圧操向機構(28)に伝わるように
構成し、変速レバー(18)及び操向ハンドル(19)
と各変速及び操向機構(25)(28)とを各レバーリ
ンク系(70)(71)で容易に連結させると共に、旋
回出力逆転手段(85)をこれらリンク系(70)(7
1)に容易に組込んで、簡単な手段のもので旋回時の操
作感覚を前後進とも同一とさせる良好な運転を可能とさ
せることができるものである。
A speed change link system (70) for interlockingly connecting the hydraulic speed change mechanism (25) and the speed change lever (68) includes:
Turning output reversing means (85) is operatively connected to Rutotomoni, exchange
Operation to rotate around two shafts (77) and (79)
The members (80) and (81) are provided, and the steering handle (19) and
Hydraulic steering mechanism (28), shift lever (68) and hydraulic pressure
The transmission mechanism (25) is operated by the operation members (80) and (81).
The operation of the shift lever (68) is performed by the operation member (8).
0) As transmitted from (81) to the hydraulic steering mechanism (28)
A shift lever (18) and a steering handle (19)
And the speed change and steering mechanisms (25) and (28) are easily connected by the lever link systems (70) and (71), and the turning output reversing means (85) is connected to these link systems (70) and (7).
It can be easily incorporated into 1), and it is possible to use a simple means so as to enable a good driving operation in which the operation feeling at the time of turning is the same in forward and backward traveling.

【図面の簡単な説明】[Brief description of the drawings]

【図1】主変速レバー及び操向ハンドルの操作系の斜視
説明図である。
FIG. 1 is an explanatory perspective view of an operation system of a main shift lever and a steering handle.

【図2】コンバインの全体側面図である。FIG. 2 is an overall side view of the combine.

【図3】コンバインの全体平面図である。FIG. 3 is an overall plan view of the combine.

【図4】ミッション駆動系の説明図である。FIG. 4 is an explanatory diagram of a mission drive system.

【図5】走行変速及び操向操作部の説明図である。FIG. 5 is an explanatory diagram of a traveling speed change and steering operation unit.

【図6】操作部の正面説明図である。FIG. 6 is an explanatory front view of an operation unit.

【図7】操作部の平面説明図である。FIG. 7 is an explanatory plan view of an operation unit.

【図8】操作部の側面説明図である。FIG. 8 is an explanatory side view of the operation unit.

【図9】操作部材の側面説明図である。FIG. 9 is an explanatory side view of the operation member.

【図10】操作部材の正面説明図である。FIG. 10 is an explanatory front view of an operation member.

【図11】操作部材の平面説明図である。FIG. 11 is an explanatory plan view of an operation member.

【図12】操向ハンドル部の平面説明図である。FIG. 12 is an explanatory plan view of a steering handle portion.

【図13】リンク機構部の平面説明図である。FIG. 13 is an explanatory plan view of a link mechanism.

【図14】油圧回路図である。FIG. 14 is a hydraulic circuit diagram.

【図15】機体旋回時のハンドル切れ角とクローラ速度
との関係を示す線図である。
FIG. 15 is a diagram showing a relationship between a steering wheel turning angle and a crawler speed when the aircraft turns.

【符号の説明】[Explanation of symbols]

(2) 走行クローラ (19) 操向ハンドル (21) エンジン (25) 変速機構 (28) 変速機構(操向機構) (33) 差動機構 (68) 変速レバー (70)(71) リンク機構(リンク系) (77) 第1枢軸 (79) 第2枢軸 (80) 変速操作部材 (81) 操向操作部材 (85) 操向アーム(旋回出力逆転手段) (2) Traveling crawler (19) Steering handle (21) Engine (25) Transmission mechanism (28) Transmission mechanism (steering mechanism) (33) Differential mechanism (68) Transmission lever (70) (71) Link mechanism ( (77) First pivot (79) Second pivot (80) Shift operation member (81) Steering operation member (85) Steering arm (turning output reversing means)

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 エンジン(21)からの駆動力を直進走
行用油圧変速機構(25)及びギヤ差動機構(33)を
介し走行クローラ(2)に伝達して機体を変速自在に直
進走行させると共に、操向ハンドル(19)の旋回操作
により制御する旋回用油圧操向機構(28)及びギヤ差
動機構(33)を介してエンジン(21)からの駆動力
を走行クローラ(2)に伝達して、左右走行クローラ
(2)の回転を異ならせて機体の旋回を行うと共に、
後進の何れにおいても操向ハンドル(19)の回動操作
方向と機体の旋回方向とを一致させる移動農機の走行装
置において、前記の直進走行用油圧変速機構(25)に
連結する変速レバー(68)と、前記の旋回用油圧操向
機構(28)に連結する操向ハンドル(19)とを、変
速及び旋回連動機構(69)に連動連結させ、走行状態
で操向ハンドル(19)の旋回操作によって直進走行用
油圧変速機構(25)の直進走行速度を減速させるよう
に構成したことを特徴とする移動農機の走行装置。
1. Running straight ahead with driving force from an engine (21).
The transmission is transmitted to the traveling crawler (2) through the row hydraulic transmission mechanism (25) and the gear differential mechanism (33) so that the aircraft travels freely in a variable speed and the turning operation of the steering handle (19).
Driving force from the engine (21) via the turning hydraulic steering mechanism (28) and the gear differential mechanism (33) controlled by
The then transmitted to the traveling crawlers (2), by varying the rotation of the left and right traveling crawlers (2) performs a pivoting of the body, the forward-reverse steering handle in either rotational operation direction and the aircraft (19) Travel equipment for mobile agricultural machines that match the turning direction
The shift lever (68) connected to the hydraulic drive mechanism for straight traveling (25) and the steering handle (19) connected to the hydraulic steering mechanism for turning (28) are used for shifting and turning. operatively connected to the interlocking mechanism (69), for straight travel by the turning operation of the steering wheel (19) in a running state
A traveling device for a mobile agricultural machine, wherein the traveling speed of the hydraulic transmission mechanism (25) is reduced.
JP23776897A 1997-08-18 1997-08-18 Traveling equipment for mobile farm machines Expired - Lifetime JP3277360B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23776897A JP3277360B2 (en) 1997-08-18 1997-08-18 Traveling equipment for mobile farm machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23776897A JP3277360B2 (en) 1997-08-18 1997-08-18 Traveling equipment for mobile farm machines

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP08271605 Division 1996-09-20 1996-09-20

Publications (2)

Publication Number Publication Date
JPH1095361A JPH1095361A (en) 1998-04-14
JP3277360B2 true JP3277360B2 (en) 2002-04-22

Family

ID=17020161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23776897A Expired - Lifetime JP3277360B2 (en) 1997-08-18 1997-08-18 Traveling equipment for mobile farm machines

Country Status (1)

Country Link
JP (1) JP3277360B2 (en)

Also Published As

Publication number Publication date
JPH1095361A (en) 1998-04-14

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