JP2002166846A - Running drive mechanism of vehicle - Google Patents

Running drive mechanism of vehicle

Info

Publication number
JP2002166846A
JP2002166846A JP2000364266A JP2000364266A JP2002166846A JP 2002166846 A JP2002166846 A JP 2002166846A JP 2000364266 A JP2000364266 A JP 2000364266A JP 2000364266 A JP2000364266 A JP 2000364266A JP 2002166846 A JP2002166846 A JP 2002166846A
Authority
JP
Japan
Prior art keywords
turning
traveling
driving force
drive
running
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.)
Pending
Application number
JP2000364266A
Other languages
Japanese (ja)
Other versions
JP2002166846A5 (en
Inventor
Masashi Kamoto
政司 嘉本
Kenichi Adachi
憲一 足立
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.)
Mitsubishi Agricultural Machinery Co Ltd
Original Assignee
Mitsubishi Agricultural Machinery 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 Mitsubishi Agricultural Machinery Co Ltd filed Critical Mitsubishi Agricultural Machinery Co Ltd
Priority to JP2000364266A priority Critical patent/JP2002166846A/en
Publication of JP2002166846A publication Critical patent/JP2002166846A/en
Publication of JP2002166846A5 publication Critical patent/JP2002166846A5/ja
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a running drive mechanism for a vehicle allowing smooth turning of the running machine body without imposing a too large burden on that side with the running device located outside in turning. SOLUTION: A drive device to run and steer the running machine body by operating a left and a right running device supporting the running machine body is equipped with a running drive part which gives a driving force for straight run to the two running devices, a turning drive part to give a driving force for turning to the running devices, and turning clutch mechanisms 59L and 59R installed between the turning drive part and two running devices, wherein the drive device puts in engagement the turning clutch mechanism located on the side with the running device positioned inside at turning, while a driving force in the rotating direction in which the rotating speed of the running device lowers is fed as the turning drive force to that running device positioned inside at turning.

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】この発明はコンバイン等の左
右一対のクローラ式等の走行装置を備えた走行車両の走
行駆動機構に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling drive mechanism for a traveling vehicle provided with a pair of left and right traveling devices such as a crawler such as a combine.

【0002】[0002]

【従来の技術と発明が解決しようとする課題】従来コン
バイン等のような左右一対のクローラ式の走行装置を備
えた作業車両は、旋回時に内側となる走行装置の駆動力
(回転数)を、旋回時に外側となる走行装置の駆動力
(回転数)に対して小さくする、又は旋回時に内側とな
る走行装置の駆動方向(回転方向)を、旋回時に外側と
なる走行装置の駆動方向(回転方向)に対して逆転させ
ることによって、旋回させるように構成されている。
2. Description of the Related Art Conventionally, a work vehicle equipped with a pair of left and right crawler type traveling devices such as a combine or the like has a driving force (rotational speed) of a traveling device which is located inside when turning. The driving force (rotation direction) of the traveling device, which is on the inside during turning, is reduced with respect to the driving force (rotation speed) of the traveling device, which is on the outside during turning, and the driving direction (the rotating direction) of the traveling device, which is on the outside during turning. ), So that it is turned.

【0003】このため通常上記作業車両は、旋回時に左
右の走行装置に対して左右逆方向の旋回用の駆動力を与
え、左右の走行装置に加える駆動力を、直進用の駆動力
(同方向且つ同回転数の駆動力)と上記旋回用の駆動力
との合成駆動力とし、左右の走行装置の回転数又は回転
方向に差を与え、走行機体を旋回せしめていた。
For this reason, the work vehicle normally applies a driving force for turning to the left and right traveling devices to the left and right traveling devices at the time of turning, and converts the driving force applied to the left and right traveling devices to the driving force for traveling straight (in the same direction). In addition, a driving force of the same rotation speed) and the driving force for turning are used as a combined driving force, and a difference is given to the rotation speed or the rotation direction of the left and right traveling devices to turn the traveling body.

【0004】しかし上記構造の場合、旋回方向に応じて
旋回駆動力の回転方向を左右逆転させる必要がある他、
左右の走行装置にそれぞれ逆回転を入力させるためトラ
ンスミッション内に逆回転用のギヤを設ける必要があ
り、トランスミッションの構造が複雑になるという欠点
があった。
[0004] However, in the case of the above structure, it is necessary to reverse the rotation direction of the turning drive force left and right according to the turning direction.
In order to input the reverse rotation to the left and right traveling devices, respectively, it is necessary to provide a reverse rotation gear in the transmission, which has a disadvantage that the structure of the transmission is complicated.

【0005】また旋回時に外側となる走行装置の回転数
は、旋回直前の直進状態での回転数より増加することと
なり、外側の走行装置側への負担が大きくなるほか、旋
回半径が必要以上に小さくなり、緩旋回させることが困
難であった。これに対して直進用の駆動力を旋回時のみ
低下させる方法も考えられているが、この場合はトラン
スミッションの構造及び制御がさらに複雑となる欠点が
あった。
In addition, the rotation speed of the traveling device which is located outside when turning is greater than the rotation speed in the straight traveling state immediately before the turning, so that the burden on the outside traveling device is increased, and the turning radius is increased more than necessary. It was small and it was difficult to make a gentle turn. On the other hand, a method of reducing the driving force for straight traveling only at the time of turning is considered, but in this case, there is a disadvantage that the structure and control of the transmission are further complicated.

【0006】[0006]

【課題を解決するための手段】上記課題を解決するため
の本発明の走行車両の走行駆動機構は、走行機体を支持
せしめる左右の走行装置と、該走行装置を駆動せしめ走
行機体を走行及び操向せしめる駆動装置を設け、該駆動
装置が直進用の駆動力を両走行装置に対して出力せしめ
る走行駆動部と、旋回用の駆動力を走行装置に対して出
力せしめる旋回駆動部と、該旋回駆動部と各走行装置と
の間に設けられる旋回クラッチ機構59L,59Rとを
備え、左右いずれかの走行装置に直進駆動力に対して旋
回駆動力を入力せしめて走行機体を旋回させる走行車両
において、上記駆動装置が旋回時に内側となる走行装置
側の旋回クラッチ機構を入り作動させ、旋回時内側とな
る走行装置に、該走行装置の回転数が低下する回転方向
の駆動力を旋回駆動力として入力せしめることを第1の
特徴としている。
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a traveling drive mechanism of a traveling vehicle according to the present invention comprises left and right traveling devices for supporting the traveling vehicle, and driving and operating the traveling device by driving the traveling devices. A driving device for directing the driving device to output driving force for straight traveling to both traveling devices; a turning driving portion for outputting a driving force for turning to the traveling device; A traveling vehicle that includes turning clutch mechanisms 59L and 59R provided between a driving unit and each traveling device and turns the traveling body by inputting a turning driving force to a straight driving force to one of the left and right traveling devices. The driving device turns on and operates the turning clutch mechanism on the traveling device side which is on the inside when turning, and applies a driving force in the rotation direction in which the rotation speed of the traveling device decreases to the traveling device on the inside when turning. That allowed to enter as the force is the first feature.

【0007】また旋回駆動部が、エンジン側からの駆動
力により作動せしめられるHST4であることを第2の
特徴としている。
A second feature is that the turning drive unit is an HST4 which is operated by a driving force from the engine.

【0008】さらに旋回駆動部が、走行駆動部からの駆
動力を変速して出力せしめるギヤボックス66からなる
ことを第3の特徴としている。
A third feature is that the turning drive section comprises a gear box 66 for shifting and outputting the driving force from the traveling drive section.

【0009】[0009]

【発明の実施の形態】図1は本発明を応用したコンバイ
ンの駆動系の伝動線図であり、すなわちこのコンバイン
は左右にクローラ式の走行装置を備え、直進(直線上に
前進及び後進)する場合は、左右の走行装置を等速(同
回転数)で駆動し、旋回時には旋回の内側となる走行装
置の駆動速度(回転数)を外側となる走行装置の駆動速
度(回転数)に比較して低下(低回転)させる構造とな
っている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a power transmission diagram of a drive system of a combine to which the present invention is applied. In other words, the combine has a crawler-type traveling device on the left and right and travels straight (forward and backward on a straight line). In this case, the left and right traveling devices are driven at the same speed (same speed), and when turning, the driving speed (rotation speed) of the traveling device inside the turn is compared with the driving speed (rotation speed) of the outside traveling device. And lower (low rotation).

【0010】次に上記コンバインのトランスミッション
の構造と駆動力の伝動構造について詳細に説明する。ト
ランスミッション1のケース(ミッションケース)2に
は2つのHST3,4が取り付けられており、一方のH
ST3の入力軸3aにエンジン6からメインクラッチ7
を介して駆動力が入力され、該HST3の出力が出力軸
3bから副変速ギヤ機構8と駆動ギヤ9を介して駆動軸
11に入力されている。
Next, the structure of the transmission of the combine and the transmission structure of the driving force will be described in detail. Two HSTs 3, 4 are attached to a case (mission case) 2 of the transmission 1,
The main clutch 7 from the engine 6 to the input shaft 3a of ST3.
, And the output of the HST 3 is input from the output shaft 3 b to the drive shaft 11 via the auxiliary transmission gear mechanism 8 and the drive gear 9.

【0011】そして駆動軸11から左右の走行装置用の
左右の遊星ギヤ機構12L,12Rを介して両走行装置
の駆動輪13L,13Rに駆動力が入力され、これによ
り左右の走行装置が回転駆動されて走行機体を直線上に
前後進(直進)せしめ、HST3は走行機体を直進せし
める走行駆動装置(走行HST)となっている。
Driving force is input from the drive shaft 11 to the drive wheels 13L, 13R of both traveling devices via the left and right planetary gear mechanisms 12L, 12R for the left and right traveling devices, thereby rotating the left and right traveling devices. HST3 is a traveling drive device (traveling HST) for traveling forward and backward (straight) on a straight line and moving the traveling aircraft straight.

【0012】すなわち駆動軸11の両端に左右の遊星ギ
ヤ機構12L,12Rの太陽歯車14が取り付けられて
いると共に、太陽歯車14に噛み合う遊星歯車16を軸
支するアーム17に駆動軸11と同心に車軸18が取り
付けられており、これにより太陽歯車14に駆動力が入
力され、太陽歯車14が回転駆動され、これにより遊星
歯車16が回転せしめられ車軸18が駆動され、走行装
置(駆動輪13L,13R)が駆動される。
That is, the sun gears 14 of the left and right planetary gear mechanisms 12L and 12R are attached to both ends of the drive shaft 11, and an arm 17 which supports a planetary gear 16 meshing with the sun gear 14 is coaxial with the drive shaft 11. An axle 18 is attached, whereby a driving force is input to the sun gear 14 and the sun gear 14 is driven to rotate, whereby the planetary gear 16 is rotated and the axle 18 is driven, and the traveling device (drive wheels 13L, 13L, 13R) is driven.

【0013】一方上記走行HST3における入力軸3a
は、走行HST3の本体を貫通して突出しており、エン
ジン6からの駆動力を入力する入力プーリ19が取り付
けられている端部の反対側の端部に他方のHST4側に
駆動力を出力せしめる出力プーリ21が各取り付けられ
ている。そして出力プーリ21は他方のHST4の入力
軸4aに設けられた入力プーリ51とベルト52及びテ
ンションクラッチ53を介して接続されており、すなわ
ち該テンションクラッチ53を入り作動せしめること
で、エンジン6からの駆動力が走行HST3及び他方の
HST4に入力される。
On the other hand, the input shaft 3a in the traveling HST3
Protrudes through the main body of the traveling HST 3 and outputs the driving force to the other HST 4 side at the end opposite to the end where the input pulley 19 for inputting the driving force from the engine 6 is attached. Each output pulley 21 is attached. The output pulley 21 is connected to an input pulley 51 provided on the input shaft 4a of the other HST 4 via a belt 52 and a tension clutch 53. That is, the tension pulley 53 is engaged and activated, so that the output from the engine 6 is reduced. The driving force is input to the traveling HST 3 and the other HST 4.

【0014】なお上記HST4は以下に説明するように
左右いずれか一方の走行装置に旋回用の駆動力を入力せ
しめ、走行機体を旋回せしめる旋回駆動部(旋回HST
4)となっている。すなわち旋回HST4の出力軸4b
は旋回副変速機構54を介して旋回駆動軸56に一体的
に軸支された駆動ギヤ57に伝動せしめられている。
As described below, the HST 4 is a turning drive unit (turning HST) that inputs a driving force for turning to one of the right and left traveling devices and turns the traveling body.
4). That is, the output shaft 4b of the turning HST4
Is transmitted to a drive gear 57 which is integrally supported by a turning drive shaft 56 via a turning auxiliary transmission mechanism 54.

【0015】そして旋回駆動軸56の左右両端には摩擦
ブレーキ機構58が一体的に形成された摩擦クラッチ5
9L,59Rが設けられており、旋回駆動軸56の駆動
力が左摩擦クラッチ59L側を介して左側の遊星伝動ギ
ヤ機構12Lにおける各遊星歯車16に内歯が噛み合う
リングギヤ61に、右摩擦クラッチ59R側を介して右
側の遊星伝動ギヤ機構12Rにおけるリングギヤ61に
各伝動されている。
A friction clutch 5 integrally formed with a friction brake mechanism 58 at both left and right ends of the turning drive shaft 56
9L and 59R are provided, and the driving force of the turning drive shaft 56 is applied to the ring gear 61 whose internal teeth mesh with each planetary gear 16 of the left planetary transmission gear mechanism 12L via the left friction clutch 59L, and the right friction clutch 59R. Each is transmitted to the ring gear 61 of the right planetary transmission gear mechanism 12R via the side.

【0016】このとき旋回HST4はリングギヤ61の
回転(駆動)によって車軸18の回転が減少する方向の
駆動力を、リングギヤ61に与えるように回転駆動され
るように設定されており、走行機体の運転席に設けられ
た操向用の操作部(操向レバー)を左右に揺動させて旋
回操作せしめることによって、上記テンションクラッチ
53が入り作動せしめられ、旋回HST4が駆動される
ように構成されている。
At this time, the turning HST 4 is set to be rotationally driven so as to give the ring gear 61 a driving force in the direction in which the rotation of the axle 18 is reduced by the rotation (driving) of the ring gear 61. The steering operation unit (steering lever) provided in the seat is swung left and right to perform a turning operation, whereby the tension clutch 53 is engaged and operated, and the turning HST4 is driven. I have.

【0017】また上記操向レバーは摩擦クラッチ59
L,59R及び旋回HST4とも連係せしめられてお
り、操向レバーを左側に揺動(左旋回操作)又は右側に
揺動(右旋回操作)させることにより、左摩擦クラッチ
59L又は右摩擦クラッチ59Rを入り作動させ、揺動
角度に比例して旋回HST4の回転数を増加させるよう
に構成されている。
The steering lever is provided with a friction clutch 59.
L, 59R and the turning HST4, and the left friction clutch 59L or the right friction clutch 59R is caused by swinging the steering lever to the left (left turning operation) or to the right (right turning operation). And the number of rotations of the turning HST4 is increased in proportion to the swing angle.

【0018】これにより操向レバーを左又は右旋回操作
することにより、走行HST3と旋回HST4との間に
介設されたテンションクラッチ53が入り状態となり、
走行機体の旋回時に旋回の内側となる左又は右の摩擦ク
ラッチ59L又は59Rが入り作動することにより、旋
回時内側となる走行装置(駆動輪13L又は13R)の
回転数が、旋回時外側となる走行装置(駆動輪13R又
は13L)の回転数に比較して低下し、走行機体が旋回
する。
By turning the steering lever left or right, the tension clutch 53 interposed between the traveling HST3 and the turning HST4 is brought into the engaged state.
When the left or right friction clutch 59L or 59R, which is on the inside of turning when the traveling body is turning, is engaged, the rotation speed of the traveling device (drive wheel 13L or 13R) on the inside becomes turning outside when turning. The number of revolutions of the traveling device (drive wheel 13R or 13L) is reduced, and the traveling body turns.

【0019】このとき旋回時に外側となる左又は右の摩
擦クラッチ59L又は59Rは切り状態のままであるた
め、旋回時外側となる走行装置(駆動輪)には、旋回H
ST4から駆動力が入力されることはなく、このため旋
回時外側となる走行装置は旋回時であっても直進時と同
回転を維持する。これにより旋回時に外側の走行装置が
必要以上の高速回転(駆動)されることがなく、走行装
置やエンジン6側に必要以上の負荷がかからないだけで
なく、必要以上の急旋回を防止することもできる。
At this time, since the left or right friction clutch 59L or 59R, which is on the outside during turning, remains in the disengaged state, the traveling device (drive wheel), which is on the outside during turning, has a turning H.
No driving force is input from ST4, so that the traveling device that is on the outside during turning maintains the same rotation as when traveling straight even during turning. As a result, the outer traveling device is not rotated (driven) at an excessively high speed during turning, so that not only an unnecessary load is applied to the traveling device and the engine 6 but also an unnecessary sudden turning is prevented. it can.

【0020】なお操向レバーの揺動角度を大きくして、
旋回HST4の回転数を高く(早く)するに従って車軸
18の回転数は低下し、旋回HST4の回転数が所定値
以上となると、車軸18は逆回転する。これにより操向
レバーの揺動角度により走行機体の旋回半径を設定する
ことができ、走行機体を急旋回させることもできるが、
前述のように旋回外側の走行装置の回転数が、直進時に
比較して増加しないため、必要以上の急旋回とはならな
い。
In addition, by increasing the swing angle of the steering lever,
As the rotation speed of the turning HST4 is increased (earlier), the rotation speed of the axle 18 decreases. When the rotation speed of the turning HST4 becomes equal to or more than a predetermined value, the axle 18 rotates in the reverse direction. Thereby, the turning radius of the traveling body can be set according to the swing angle of the steering lever, and the traveling body can be rapidly turned.
As described above, since the rotation speed of the traveling device on the outside of the turn does not increase as compared with the straight traveling, the turn does not become sharper than necessary.

【0021】そして上記構造により走行機体の旋回方向
に無関係に旋回HST4の回転方向を常に1方向とする
ことができるため、旋回時に旋回HST4の回転方向を
変更する必要が無く、また旋回HST4と旋回駆動軸5
6側との間に逆転ギヤ等を介在させる必要も無く、旋回
機構をシンプルに構成することができる。
With the above structure, the turning direction of the turning HST4 can be always set to one direction regardless of the turning direction of the traveling body, so that it is not necessary to change the turning direction of the turning HST4 during turning and the turning HST4 and the turning Drive shaft 5
There is no need to interpose a reversing gear or the like between the turning mechanism 6 and the turning mechanism, so that the turning mechanism can be simply configured.

【0022】一方上記実施形態においては、旋回用のH
ST4を直進用のHST3に対して独立して設けている
が、図2に示されるように旋回用のギヤボックス66を
設けるとともに、該ギヤボックス66に走行用のHST
3から駆動力を入力する構造とすることによって、1つ
のHSTにより上記旋回構造を構築することも可能であ
る。
On the other hand, in the above embodiment, the turning H
The ST4 is provided independently of the HST 3 for traveling straight, but a gear box 66 for turning is provided as shown in FIG.
By adopting a structure for inputting the driving force from 3, it is possible to construct the turning structure with one HST.

【0023】すなわち旋回用のギヤボックス66内に、
副変速機構8の出力軸8Oからギヤ67を介して駆動力
を入力せしめ、ギヤボックス66内に、ギヤボックス6
6の出力軸に駆動力を減速して伝動せしめる多段ギヤ機
構とクラッチとを設け、上記副変速機構8からの駆動力
を多段階に変速してギヤボックス66の出力軸側から、
駆動ギヤ57を介して旋回駆動軸56に駆動力を伝動す
るように構成してもよい。
That is, in the gear box 66 for turning,
The driving force is input from the output shaft 80 of the subtransmission mechanism 8 via the gear 67, and the gearbox 66 is inserted into the gearbox 66.
A multi-stage gear mechanism and a clutch for reducing and transmitting the driving force are provided on the output shaft of No. 6 and the driving force from the sub-transmission mechanism 8 is shifted in multiple stages to output gear shaft 66 from the output shaft side.
The driving force may be transmitted to the turning drive shaft 56 via the driving gear 57.

【0024】これにより左右いずれかの摩擦クラッチ5
9L又は59Rを入り作動させることによりギヤボック
ス66からの出力駆動力により走行機体を旋回させるこ
とができる。なおこの場合操向レバーと多段ギヤ機構と
を連係し、操向レバーの揺動角度に比例してギヤボック
ス66からの出力が高回転となるように設定する必要が
ある。
Thus, either the left or right friction clutch 5
By turning on and operating 9L or 59R, the traveling body can be turned by the output driving force from the gear box 66. In this case, it is necessary to link the steering lever and the multi-stage gear mechanism so that the output from the gear box 66 is increased in proportion to the swing angle of the steering lever.

【0025】また操向レバーを中立(走行機体の直進操
作)とすることにより、ギヤボックス66内の変速がニ
ュートラルとなるように設定することにより、走行機体
の直進時にはギヤボックス66からの出力を停止させる
こともでき、旋回時のみギヤボックス66から駆動力を
出力させることも可能であり、上記実施形態と同様の効
果を得ることができる。
Further, by setting the steering lever to neutral (straight running operation of the traveling body) and setting the gear shift in the gear box 66 to be neutral, the output from the gear box 66 is provided when the traveling body is going straight. It can be stopped, and the driving force can be output from the gear box 66 only at the time of turning, and the same effect as the above embodiment can be obtained.

【0026】なお走行機体の旋回半径は、旋回HST4
を使用する場合は、旋回HST4の出力回転数を任意に
設定することにより、無段階に変更することができる
が、旋回駆動用のギヤボックス66を使用する場合は、
予め旋回半径を設定しておき、各旋回半径に対応する回
転数で旋回駆動軸56が回転するようにギヤボックス6
6内の多段ギヤを設定し、旋回半径に応じてギヤを選択
するように構成する必要がある。
Note that the turning radius of the traveling body is the turning HST4.
Can be changed steplessly by arbitrarily setting the output rotation speed of the swing HST4. However, when the gear box 66 for swing drive is used,
The turning radius is set in advance, and the gear box 6 is rotated so that the turning drive shaft 56 rotates at a rotation speed corresponding to each turning radius.
It is necessary to set the multi-stage gear in 6 and select the gear according to the turning radius.

【0027】ただし旋回用のギヤボックス66内のギヤ
比を適切に設定することにより、旋回HST4を使用す
る場合のように走行HST3の副変速(走行機体の走行
速度)に、旋回駆動軸56の回転数を対応させるための
専用の副変速機構を設ける必要が無く、副変速機構を走
行HST3用のみとすることができ、シンプルに構成す
ることが可能である。
However, by appropriately setting the gear ratio in the turning gear box 66, the turning drive shaft 56 can be used for the sub-shift (traveling speed of the traveling body) of the traveling HST3 as in the case of using the rotating HST4. There is no need to provide a dedicated sub-transmission mechanism for adjusting the number of rotations, and the sub-transmission mechanism can be used only for the traveling HST3, so that the configuration can be simplified.

【0028】特に通常走行機体の直進や旋回は、運転席
に設けられた操向レバー等の操向部により操作され、旋
回HST4を使用する場合、操向部の操作量に応じて旋
回HST4の回転数が変化せしめられるが、操作部の操
作量が比較的小さな構造等の場合は、旋回HST4の回
転数変更を詳細に行うことが困難となり、この場合はギ
ヤボックス66を使用して多段ギヤにより旋回半径を設
定する構造の方が、旋回半径の設定を容易に行うことが
できる。
In particular, the straight running and turning of the normal traveling body is operated by a steering unit such as a steering lever provided in the driver's seat. When the turning HST4 is used, the turning HST4 is controlled according to the operation amount of the steering unit. Although the rotation speed can be changed, it is difficult to change the rotation speed of the turning HST 4 in detail in a structure or the like in which the operation amount of the operation unit is relatively small. Thus, the structure in which the turning radius is set can more easily set the turning radius.

【0029】また旋回半径を設定する(旋回駆動軸56
の回転数を設定する)際に、従来のサイドクラッチを抜
いた状態で旋回時の旋回半径とほぼ同様の、より大きな
旋回半径を選択することができるように、ギヤ比又は旋
回HST4の回転数を設定することにより、より大きな
旋回半径での旋回を行うことができる。
The turning radius is set (the turning drive shaft 56).
When the conventional side clutch is disengaged, the gear ratio or the rotation speed of the turning HST4 can be selected so as to select a larger turning radius that is substantially the same as the turning radius at the time of turning. Is set, the turning with a larger turning radius can be performed.

【0030】これにより左右走行装置の回転数の最小限
の変化量を確保することができ、方向自動制御や走行機
体の水平制御等を容易に、且つ従来と同様のフィーリン
グで行わせることができる。
Thus, it is possible to secure the minimum amount of change in the number of revolutions of the left and right traveling devices, and it is possible to easily perform the automatic direction control, the horizontal control of the traveling vehicle, and the like with the same feeling as before. it can.

【0031】[0031]

【発明の効果】以上のように構成される本発明の構造に
よれば、例えば走行装置に遊星ギヤ機構を介して直進駆
動力と旋回駆動力を合成して入力せしめることによっ
て、旋回駆動力の回転数を常に同回転方向で変更するこ
とにより旋回内側の回転数及び回転方向を可変させるこ
とができる。
According to the structure of the present invention constructed as described above, for example, the straight driving force and the turning drive force are combined and input to the traveling device via the planetary gear mechanism, so that the turning drive force can be reduced. By always changing the rotation speed in the same rotation direction, the rotation speed and the rotation direction inside the turning can be changed.

【0032】これにより旋回時外側となる走行装置用の
旋回クラッチの切り状態を保持したままで、左右の走行
装置の回転数に差を設けることができ、このとき外側の
走行装置の回転数は、旋回時に変速操作をしなければ、
旋回直前と同じとなるため、旋回外側の走行装置側に必
要以上の負担をかけることなく、走行機体を円滑に旋回
せしめることができる。
With this arrangement, it is possible to provide a difference between the rotational speeds of the left and right traveling devices while maintaining the disengaged state of the turning clutch for the traveling device, which is on the outside when turning, and at this time, the rotational speed of the outer traveling device becomes , If you do not change gears when turning,
Since it is the same as immediately before the turn, the traveling body can be turned smoothly without imposing an unnecessary load on the traveling device outside the turn.

【0033】特に旋回駆動部は同回転方向の駆動力を出
力することによって、旋回内側の走行装置の回転数及び
回転方向を変更することができるため、旋回駆動部から
走行装置側への駆動力の出力構造が簡単となり、シンプ
ルな構造で走行機体の旋回半径を調節して走行機体を旋
回させることができる。
In particular, since the turning drive unit can change the rotation speed and the rotation direction of the traveling device inside the turning by outputting the driving force in the same rotation direction, the driving force from the turning drive unit to the traveling device side can be changed. The output structure can be simplified, and the traveling body can be turned by adjusting the turning radius of the traveling body with a simple structure.

【0034】このとき旋回駆動部が、エンジン側からの
駆動力により作動せしめられるHSTである場合は、旋
回半径を無段階に容易に調節できるという利点があり、
また旋回駆動部が、走行駆動部からの駆動力を変速して
出力せしめるギヤボックスからなる場合は、旋回半径の
調節は段階的であるが、構造が比較的簡単となり、また
走行時の副変速に対応する旋回用の副変速機構を旋回駆
動部の外部に設ける必要が無いという効果がある。
At this time, when the turning drive unit is an HST that is operated by the driving force from the engine, there is an advantage that the turning radius can be easily adjusted steplessly.
In the case where the turning drive unit is formed of a gear box that changes and outputs the driving force from the traveling drive unit, the turning radius is adjusted stepwise, but the structure is relatively simple, and the sub-shift during traveling is also performed. There is no need to provide a sub-transmission mechanism for turning corresponding to (1) outside the turning drive unit.

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

【図1】コンバインにおけるトランスミッションの伝動
線図である。
FIG. 1 is a transmission diagram of a transmission in a combine.

【図2】他の実施形態のトランスミッションの伝動線図
である。
FIG. 2 is a transmission diagram of a transmission according to another embodiment.

【符号の説明】[Explanation of symbols]

4 旋回HST(HST) 59L 摩擦クラッチ(旋回クラッチ機構) 59R 摩擦クラッチ(旋回クラッチ機構) 66 ギヤボックス 4 Swivel HST (HST) 59L Friction clutch (slewing clutch mechanism) 59R Friction clutch (slewing clutch mechanism) 66 Gear box

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 2B076 AA03 CC02 DA03 DB04 DB06 DB08 DD01 3D042 AA03 AA06 AB11 BA02 BA13 BA16 BD02 3D052 AA03 AA12 BB10 DD04 EE01 FF02 GG04 JJ10 JJ14  ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 2B076 AA03 CC02 DA03 DB04 DB06 DB08 DD01 3D042 AA03 AA06 AB11 BA02 BA13 BA16 BD02 3D052 AA03 AA12 BB10 DD04 EE01 FF02 GG04 JJ10 JJ14

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 走行機体を支持せしめる左右の走行装置
と、該走行装置を駆動せしめ走行機体を走行及び操向せ
しめる駆動装置を設け、該駆動装置が直進用の駆動力を
両走行装置に対して出力せしめる走行駆動部と、旋回用
の駆動力を走行装置に対して出力せしめる旋回駆動部
と、該旋回駆動部と各走行装置との間に設けられる旋回
クラッチ機構(59L),(59R)とを備え、左右い
ずれかの走行装置に直進駆動力に対して旋回駆動力を入
力せしめて走行機体を旋回させる走行車両において、上
記駆動装置が旋回時に内側となる走行装置側の旋回クラ
ッチ機構を入り作動させ、旋回時内側となる走行装置
に、該走行装置の回転数が低下する回転方向の駆動力を
旋回駆動力として入力せしめる走行車両の走行駆動機
構。
1. A vehicle comprising: a left and right traveling device for supporting a traveling vehicle; and a driving device for driving the traveling device to travel and steer the traveling vehicle. The driving device applies a driving force for straight traveling to both traveling devices. Drive unit for outputting the driving force for turning to the traveling device, and a turning clutch mechanism (59L), (59R) provided between the turning drive unit and each traveling device. In a traveling vehicle in which a turning drive force is input to a right or left traveling device with respect to a straight driving force and the traveling body is turned, a turning clutch mechanism on the traveling device side in which the driving device is on the inside when turning is provided. A traveling drive mechanism of a traveling vehicle that is operated to enter and input, as a turning drive force, a drive force in a rotation direction in which the rotation speed of the travel device decreases to a travel device that is on the inside when turning.
【請求項2】 旋回駆動部が、エンジン側からの駆動力
により作動せしめられるHST(4)である請求項1の
走行車両の走行駆動機構。
2. The traveling drive mechanism for a traveling vehicle according to claim 1, wherein the turning drive section is an HST (4) operated by a driving force from an engine side.
【請求項3】 旋回駆動部が、走行駆動部からの駆動力
を変速して出力せしめるギヤボックス(66)からなる
請求項1の走行車両の走行駆動機構。
3. The traveling drive mechanism for a traveling vehicle according to claim 1, wherein the turning drive section comprises a gear box (66) for shifting and outputting a driving force from the traveling drive section.
JP2000364266A 2000-11-30 2000-11-30 Running drive mechanism of vehicle Pending JP2002166846A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000364266A JP2002166846A (en) 2000-11-30 2000-11-30 Running drive mechanism of vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000364266A JP2002166846A (en) 2000-11-30 2000-11-30 Running drive mechanism of vehicle

Publications (2)

Publication Number Publication Date
JP2002166846A true JP2002166846A (en) 2002-06-11
JP2002166846A5 JP2002166846A5 (en) 2006-04-13

Family

ID=18835246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000364266A Pending JP2002166846A (en) 2000-11-30 2000-11-30 Running drive mechanism of vehicle

Country Status (1)

Country Link
JP (1) JP2002166846A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003002228A (en) * 2001-06-20 2003-01-08 Yanmar Agricult Equip Co Ltd Tractor
JP2006021661A (en) * 2004-07-08 2006-01-26 Mitsubishi Agricult Mach Co Ltd Crawler traveling vehicle
JP2007177981A (en) * 2005-12-28 2007-07-12 Toyota Motor Corp Drive device
JP2007177982A (en) * 2005-12-28 2007-07-12 Toyota Motor Corp Drive device
JP2007177983A (en) * 2005-12-28 2007-07-12 Toyota Motor Corp Drive device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003002228A (en) * 2001-06-20 2003-01-08 Yanmar Agricult Equip Co Ltd Tractor
JP4570285B2 (en) * 2001-06-20 2010-10-27 ヤンマー株式会社 Tractor
JP2006021661A (en) * 2004-07-08 2006-01-26 Mitsubishi Agricult Mach Co Ltd Crawler traveling vehicle
JP4602010B2 (en) * 2004-07-08 2010-12-22 三菱農機株式会社 Crawler car
JP2007177981A (en) * 2005-12-28 2007-07-12 Toyota Motor Corp Drive device
JP2007177982A (en) * 2005-12-28 2007-07-12 Toyota Motor Corp Drive device
JP2007177983A (en) * 2005-12-28 2007-07-12 Toyota Motor Corp Drive device
JP4618124B2 (en) * 2005-12-28 2011-01-26 トヨタ自動車株式会社 Drive device

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