JPS62204037A - Transmission for running working vehicle - Google Patents
Transmission for running working vehicleInfo
- Publication number
- JPS62204037A JPS62204037A JP61046932A JP4693286A JPS62204037A JP S62204037 A JPS62204037 A JP S62204037A JP 61046932 A JP61046932 A JP 61046932A JP 4693286 A JP4693286 A JP 4693286A JP S62204037 A JPS62204037 A JP S62204037A
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- transmission system
- output
- speed
- wheel
- 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
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 123
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Gear-Shifting Mechanisms (AREA)
- Structure Of Transmissions (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、主変速機構及び副変速機構を経た変速動力を
後輪伝動系及び前輪伝動系に伝達可能に構成した作業車
の走行用伝動装置に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a power transmission for traveling of a work vehicle, which is configured to be able to transmit transmission power through a main transmission mechanism and a sub-transmission mechanism to a rear wheel transmission system and a front wheel transmission system. Regarding equipment.
かかる作業車の走行用伝動装置において、従来では、主
変速機構により変速された動力すべてを副変速機構を介
して後輪伝動系及び前輪伝動系に伝達するようにしてい
た。Conventionally, in such a traveling transmission device for a work vehicle, all of the power shifted by the main transmission mechanism is transmitted to the rear wheel transmission system and the front wheel transmission system via the auxiliary transmission mechanism.
ところで、一つの作業地での作業を終了して、次の作業
地へ作業車を迅速に移動させたい場合等に主変速機構を
高速側に操作して前進最高速度で作業車を走行卒せるこ
とが望まれる。By the way, when you have finished work at one work site and want to quickly move the work vehicle to the next work site, you can operate the main transmission mechanism to the high speed side to allow the work vehicle to stop running at the maximum forward speed. It is hoped that
しかしながら、上記従来構成では、主変速機構を高速側
に操作して前進最高速度に変速操作しているにも拘らず
、例えば副変速機構が低速側に１桑作されていると、前
進最高速度に変速することができないことがあり、その
場合、その副変速装置を高速側へ切換え操作しなければ
ならず、前進最高速度に変速するための操作が煩わしい
ものであった。However, in the conventional configuration described above, although the main transmission mechanism is operated to the high speed side to achieve the maximum forward speed, if the auxiliary transmission mechanism is set to the low speed side, for example, the maximum forward speed is In this case, the sub-transmission device must be switched to the high-speed side, and the operation for shifting to the maximum forward speed is cumbersome.
本発明の目的は、副変速機構が低速側に艮作されている
場合であっても、主変速機構を操作するだけで前、進最
高速度に変速することができるようにし、かつ、主変速
機構と走行装置とを連動連結するための伝動系の簡素化
を図るようにする点にある。An object of the present invention is to enable gear shifting to the maximum forward speed simply by operating the main transmission mechanism even when the auxiliary transmission mechanism is set to the low speed side, and to The object of the present invention is to simplify the transmission system for interlocking and connecting the mechanism and the traveling device.
Ｃ問題点を解決するための手段〕
本発明の特徴構成は、前記主変速機構の出力を前進最高
速度を除く速度時に前記副変速機構に伝達し、前記主変
速機構の出力を前進最高速度時に前１蒲伝動系に伝達す
るように構成した点にある。Means for Solving Problem C] The characteristic configuration of the present invention is that the output of the main transmission mechanism is transmitted to the auxiliary transmission mechanism at speeds other than the maximum forward speed, and the output of the main transmission mechanism is transmitted at the maximum forward speed. The main point is that it is configured so that the transmission is transmitted to the first gear transmission system.
すなわら、主変速機構の出力を前進最高速度を除く速度
時に副変速Ｊａ横を介して後輪伝動系及び前輪伝動系に
伝達し、主変速機構の出力を前進最高速度時に副変速機
構を迂回して前輪伝動系に直接伝達するのである。In other words, the output of the main transmission mechanism is transmitted to the rear wheel transmission system and the front wheel transmission system via the auxiliary transmission Ja at speeds other than the maximum forward speed, and the output of the main transmission mechanism is transmitted to the auxiliary transmission mechanism at the maximum forward speed. The power is then bypassed and transmitted directly to the front wheel transmission system.
したがって、主変速機溝を前進最高速度にするための変
速操作を行うだけで、副変速機構の変速操作状態に拘ら
ず、前進最高速度に変速することができ、操作性の向上
を図ることができ、しかも、本来的に備える前輪伝動系
に主変速機構の前進最高速度の出力部を連動連結するこ
とにより伝動系の簡素化を図ることができた。Therefore, simply by performing a gear shift operation to bring the main transmission groove to the maximum forward speed, the gear can be shifted to the maximum forward speed regardless of the gear shift operation state of the auxiliary transmission mechanism, improving operability. Furthermore, the transmission system can be simplified by interlocking and connecting the maximum forward speed output section of the main transmission mechanism to the front wheel transmission system that is originally provided.
ちなみに、主変速機構の最高速度に変速された出力のみ
を副変ａＷ構を迂回させて、走行装置に直接伝達できる
ように主変速機構の前進最高速度の出力部と走行装置と
を連動連結する伝動系を別に設けることが考えられるが
、構造が複♀１ｔになり、コスト高になる等の実用上に
難点があるが、かかる点においても、本発明は優れてお
り、実用上の効果の高いものである。Incidentally, the maximum forward speed output section of the main transmission mechanism and the traveling device are interlocked and connected so that only the output shifted to the maximum speed of the main transmission mechanism bypasses the auxiliary variable aW structure and is transmitted directly to the traveling device. Although it is conceivable to provide a separate transmission system, there are practical difficulties such as the structure becomes a 1-ton structure and the cost is high.However, the present invention is excellent in this respect as well, and has no practical effect. It's expensive.
［実施例−〕
作業車の一例である農用トラクタの走行用伝動装置につ
いて説明する。[Example] A traveling transmission device for an agricultural tractor, which is an example of a working vehicle, will be described.
第１図に示すように、エンジン（図示せず）からの動力
が伝達される連結作業装置への伝動系の駆動側伝動軸（
１）と従動側伝動軸（２）との間に湿式の摩擦クラッチ
（３）を設けると共に、この従動側伝動軸（２）に伝達
された動力をギヤ減速機構（４）を介して動力取出し軸
としてのｐ ”ｒＯ軸（５）に伝達すべく構成すると共
に、前記従動側伝動軸（２）にライブ・ニュートラル・
グランドＰＴＯ伝動状態を現出する切換ギヤ（６）を設
けてＰＴＯ伝動系を構成してある。As shown in Figure 1, the drive side transmission shaft (
A wet friction clutch (3) is provided between the driven side transmission shaft (2) and the driven side transmission shaft (2), and the power transmitted to the driven side transmission shaft (2) is extracted via a gear reduction mechanism (4). It is configured to transmit p to the p''rO axis (5) as a shaft, and the driven side transmission shaft (2) is provided with a live neutral
A PTO transmission system is constructed by providing a switching gear (6) that exhibits a ground PTO transmission state.
次に、走行伝動系について説明すれば、前記駆動側伝動
軸（１）の伝動上手側に走行用筆、■伝動軸（７）を駆
動側伝動軸（１）に対して相対回転自在に外嵌し、この
走行用第１伝動軸（７）を伝動上手側伝動軸（７Ａ）と
伝動下手側伝動軸（７Ｂ）とから構成すると共に、これ
ら伝動軸（７Ａ） 、 （７Ｂ）同志間に摩擦多板式油
圧クラッチを介した遊星ギヤ式高低速切換装置（８）（
いわゆるデュアル変速機措と呼ばれるもので、高速に対
して２５％程度の速度減速を行うもの）を没けると共に
、前記伝動下手側伝動軸（７Ｂ）と平行に架設された走
行用第２伝動軸（９）との間に前進３段後進１段に変速
可能なシンクロメソシュ式ギヤ変速装置を備えた主変速
機構（１０）を設け°ζある。Next, to explain the traveling transmission system, there is a traveling brush on the transmission upper side of the driving side transmission shaft (1); The first transmission shaft (7) for traveling is composed of an upper transmission shaft (7A) and a lower transmission shaft (7B), and between these transmission shafts (7A) and (7B) Planetary gear type high/low speed switching device (8) via friction multi-plate hydraulic clutch (
This is a so-called dual transmission mechanism, which reduces the speed by about 25% compared to high speeds), and a second driving transmission shaft installed parallel to the lower transmission shaft (7B). (9) is provided with a main transmission mechanism (10) equipped with a synchronized gear transmission capable of shifting into three forward speeds and one reverse speed.
前記主変速機構（１０）の前進最高速度を除く速度の出
力部としての走行用第２伝動軸（９）を副変速機構（１
２）に連動連結すると共に、この伝動軸（９）に対して
相対回転自在な走行用第３伝動軸（１１）を突合わせ対
向配置させである。The second driving transmission shaft (9), which serves as an output section for speeds other than the maximum forward speed of the main transmission mechanism (10), is connected to the auxiliary transmission mechanism (1).
A third power transmission shaft (11) for traveling is interlocked with the power transmission shaft (2) and is rotatable relative to the power transmission shaft (9).
前記副変速機構（■２）について説明すれば、前記第２
伝動軸（９）に固着の出力ギヤ（１３）と前記第３伝動
軸（１１）にクラッチスリーブ（１４）を介して遊嵌さ
れる入力ギヤ（１５）夫々に咬合する中継ギヤ（１６）
、 （１７）を、第２伝動軸（９）及び第３伝動軸（
１１）に対して平行に架設された前輪用伝動軸（１８）
に遊嵌して減速機構（１９）を構成して、クラッチスリ
ーブ（１４）の切換操作によって、第２伝動軸（９）を
第３伝動軸（１１）に直結する高速伝動状態と第２伝動
軸（９）の出力を減速機構（１９）を介して第３伝動軸
（１１）に伝動する低速伝動状態とに切換可能に構成し
てある。To explain the sub-transmission mechanism (■2), the second
A relay gear (16) meshing with an output gear (13) fixed to the transmission shaft (9) and an input gear (15) loosely fitted to the third transmission shaft (11) via a clutch sleeve (14).
, (17), the second transmission shaft (9) and the third transmission shaft (
Front wheel transmission shaft (18) installed parallel to 11)
is loosely fitted to form a speed reduction mechanism (19), and by switching the clutch sleeve (14), a high-speed transmission state in which the second transmission shaft (9) is directly connected to the third transmission shaft (11) and a second transmission state are established. The output of the shaft (9) is configured to be switchable to a low speed transmission state in which the output of the shaft (9) is transmitted to the third transmission shaft (11) via the reduction mechanism (19).
そして、前記走行用第３伝動軸（１１）の後端に、後輪
デフ機構（２０）へ動力を伝達するベベルギヤ（２１）
を外嵌着した走行用出力軸（２２）を配置すると共に、
前記第３伝動軸（１１）と前記出力軸（２２）との間に
高低２段に変速可能な超減速機構（２３）を設けである
。この超減速機構（２３）を構成するに、前記第３伝動
軸（１１）に出力ギヤ（２４）を且つ前記出力軸（２２
）に入力ギヤ（２５）兼用のクラッチスリーブ（２６）
を夫々設けると共に、両ギヤ（２４） 。A bevel gear (21) that transmits power to the rear wheel differential mechanism (20) is attached to the rear end of the third driving transmission shaft (11).
A traveling output shaft (22) is disposed on which is externally fitted, and
A super deceleration mechanism (23) capable of changing speed in two stages, high and low, is provided between the third transmission shaft (11) and the output shaft (22). To configure this super reduction mechanism (23), an output gear (24) is connected to the third transmission shaft (11), and an output gear (24) is connected to the output shaft (22).
) to the clutch sleeve (26) that also serves as the input gear (25)
and both gears (24).
（２５）に咬合する中継ギヤ（２７） 、 （２８）を
ミッションケース（２９）側に支承された軸（３０）に
設け、である。Relay gears (27) and (28) that mesh with (25) are provided on a shaft (30) supported on the transmission case (29) side.
このようにして、主変速機構（１０）で変速された前進
最高速度を除く速度の出力を前記副変速機構（１２）及
び前記超減速機構（２３）を介して後輪伝動系に伝達し
た後、前輪伝動系に伝達されるようにすると共に、前記
主変速機構（１０）で変速された前進最高速度の出力を
前記副変速装置（１２）を迂回させて前記前輪伝動系に
伝達した後、後輪伝動系に伝達されるようにしてある。In this way, after the output of the speed other than the maximum forward speed shifted by the main transmission mechanism (10) is transmitted to the rear wheel transmission system via the auxiliary transmission mechanism (12) and the super reduction mechanism (23). , and after transmitting the output of the maximum forward speed shifted by the main transmission mechanism (10) to the front wheel transmission system by bypassing the auxiliary transmission (12), It is configured to be transmitted to the rear wheel transmission system.
前記前輪伝動系について詳述すれば、前記後輪伝動系と
しての走行用出力軸（２２）からの出力をギヤ機構（３
１）を介して前輪用伝動軸（１８）に伝達し、その伝動
軸（１８）に伝達された出力を前輪デフ機構（図示せず
）に連結された前輪用出力軸（３２）に減速機構（３３
）を介して伝達するようにして、後輪と同期した出力を
前輪に伝達すべく構成してある。To be more specific about the front wheel transmission system, the output from the running output shaft (22) as the rear wheel transmission system is transmitted through a gear mechanism (3).
1) to a front wheel transmission shaft (18), and the output transmitted to the transmission shaft (18) is transmitted to a front wheel output shaft (32) connected to a front wheel differential mechanism (not shown) through a deceleration mechanism. (33
) so that the output is transmitted to the front wheels in synchronization with the rear wheels.
詳述すれば、第２図に夙すように、前記主変速機構（１
０）の前進最高速度の出力部としてのオーバートップギ
ヤ（３４）を前記前輪伝動系を構成する前輪用伝動軸（
１８）に遊嵌すると共に、このギヤ（３４）に伝達され
る出力を後述のシフトギヤ（４４）の移動で前記伝動軸
（１８）に伝達することを断続可能に構成して、主変速
切換レバー（３５）をオーバートップ位置に操作するこ
とにより走行用第１伝動軸（７）からの動力を前記副変
速機構（１２）を迂回して前輪用伝動軸（１日）から前
輪用出力軸（３２）及び走行用出力軸（２２）へ伝達す
るようにしてある。前記主変速切換レバー（３５）の前
後並びに左右方向へ操作することにより前記主変速機構
（１０）は変速操作されるものであり、その切換レバー
（３５）と主変速機構（１０）との連係構造について説
明すれば、第３図乃至第５図に示すように、操作レバー
（３５）の下端部をミ・７シヨンケース（２９）に前後
方向に移動自在に支持されたロッド（３６）の一端に連
結すると共に、このロッド（３６）の他端に保合ビン（
３７）を、前進３段及び後進１段に変速させるためのシ
フトギヤ（３Ｂ） 。To be more specific, as shown in FIG.
The over-top gear (34) serving as the output unit for the maximum forward speed of 0) is connected to the front wheel transmission shaft (
18), and is configured to be capable of intermittent transmission of the output transmitted to this gear (34) to the transmission shaft (18) by movement of a shift gear (44), which will be described later. (35) to the over-top position, the power from the first driving transmission shaft (7) is transferred from the front wheel transmission shaft (1) to the front wheel output shaft (1), bypassing the auxiliary transmission mechanism (12). 32) and the traveling output shaft (22). The main transmission mechanism (10) is operated to change gears by operating the main transmission switching lever (35) in the front-rear and left-right directions, and the linkage between the switching lever (35) and the main transmission mechanism (10) To explain the structure, as shown in Figs. 3 to 5, the lower end of the operating lever (35) is supported by a rod (36) movably in the front and rear direction on the Mi-7 case (29). At the same time as connecting to one end of the rod (36), the other end of the rod (36) is connected to a retaining bottle (
37) to three forward speeds and one reverse speed.
（３９）夫々を操作するシフトフォーク（４０） 、
（４１）のボス部に固着の保合部材（４２） 、 （４
３）及びオーバートップに変速させるためのシフトギヤ
（４４）を操作するシフトフォーク（４５）がリンク機
構（Ａ）を介して連結されるＵ字状の保合部材（４６）
に係入自在に配置した状態で取付け、もって、操作レバ
ー（３５）を前後方向に操作することによりシフトフォ
ーク（４０） 、 （４１） 、 （４５）の選択を行
った後、操作レバー（３５）を左右方向に操作すること
により前進３段、オーバートップ、及び、後進１段に変
速できるように構成してある。(39) Shift forks (40) that operate each of them;
Retention member (42) fixed to the boss part of (41), (4
3) and a U-shaped retaining member (46) to which a shift fork (45) that operates a shift gear (44) for shifting to over-top is connected via a link mechanism (A).
After selecting the shift forks (40), (41), and (45) by operating the operating lever (35) in the front and rear direction, the operating lever (35) ) in the left and right directions, the gears can be changed to three forward speeds, over-top speed, and one reverse speed.
ｉｉｆ記リンク機構（八）を構成するに、保合部材（４
６）に内ＩＭするビン（４７）をミッションケース（２
９）に支持させ、このビン（４７）の外端とシフトフォ
ーク（４５）の操作アーム（４８）の操作軸（４９）と
をロッド（５０）により連結してある。The link mechanism (8) described in iif is composed of a retaining member (4).
6) Insert the IM bottle (47) into the mission case (2).
9), and the outer end of this bin (47) and the operating shaft (49) of the operating arm (48) of the shift fork (45) are connected by a rod (50).
尚、第３図中（５１）は、操作レバー（３５）をオーハ
ートツブ位置に位置保持させるためのボールスプリング
である。又、第１図中（Ｂ）は、２輪（後輪）駆動と４
輪駆動とを切換えるためのクラッチである。In addition, (51) in FIG. 3 is a ball spring for holding the operating lever (35) in the Ohart knob position. In addition, (B) in Figure 1 shows two-wheel (rear wheel) drive and four-wheel drive.
This is a clutch for switching between wheel drive and wheel drive.
前記実施例では、シンクロメソシュ式で構成されたオー
バートップギヤ（３４）をミッションケース（２９）内
に内装したタイプを例示したが、第６図に示すようにオ
ーバートップギヤ（３４）を外装するようにしてもよい
。つまり、前輪用伝動軸（１８）に備える入出力用ギヤ
（５２） 、 （５３）に咬合するシンクロメツシュ式
で構成されたオーバートップギヤ（３４）を前輪用伝動
軸（１８）に並設した軸（５４）に設けである。In the above embodiment, the overtop gear (34) configured with a synchromesh type was installed inside the transmission case (29), but as shown in FIG. You may also do so. In other words, an overtop gear (34) configured with a synchromesh type that meshes with the input/output gears (52) and (53) provided on the front wheel transmission shaft (18) is installed in parallel with the front wheel transmission shaft (18). It is provided on the shaft (54).
図面は本発明に係る作業車の走行用伝動装置の実施例を
示し、第１図はミソシーノンケース内の伝動系統図、第
２図は主変速機１１１キの断面図、第３図は主変速機構
の変速操作構造を示す断面図、第４図は第３図における
Ｉｖ−ＩＶ線断面図、第５図は変速切換表示部の平面図
である。第６図はオーバートップギヤの装着部の別実施
例を示す断面図である。
（１０）・・・・・・主変速機構、（１２）副変速機構
。The drawings show an embodiment of the driving transmission device for a working vehicle according to the present invention, and FIG. 1 is a diagram of the transmission system inside the miso-synchronized case, FIG. 2 is a sectional view of the main transmission 111, and FIG. FIG. 4 is a cross-sectional view showing the speed change operation structure of the main speed change mechanism, FIG. 4 is a cross-sectional view taken along the line Iv-IV in FIG. 3, and FIG. 5 is a plan view of the speed change switching display section. FIG. 6 is a sectional view showing another embodiment of the mounting portion of the over-top gear. (10) Main transmission mechanism, (12) Sub-transmission mechanism.
Claims (1)
動力を後輪伝動系及び前輪伝動系に伝達可能に構成した
作業車の走行用伝動装置であって、前記主変速機構（１
０）の出力を前進最高速度を除く速度時に前記副変速機
構（１２）に伝達し、前記主変速機構（１０）の出力を
前進最高速度時に前輪伝動系に伝達するように構成して
ある作業車の走行用伝動装置。A traveling transmission device for a working vehicle configured to be able to transmit transmission power via a main transmission mechanism (10) and a sub-transmission mechanism (12) to a rear wheel transmission system and a front wheel transmission system,
0) to the auxiliary transmission mechanism (12) at speeds other than the maximum forward speed, and transmit the output of the main transmission mechanism (10) to the front wheel transmission system at the maximum forward speed. A transmission device for driving a car.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61046932A JPS62204037A (en) | 1986-03-04 | 1986-03-04 | Transmission for running working vehicle |
| AU64391/86A AU572741B2 (en) | 1986-03-03 | 1986-10-24 | Transmission for working vehicle with an overtop drive |
| NZ218090A NZ218090A (en) | 1986-03-03 | 1986-10-28 | Vehicle transmission with extra-high top gear and bypass of auxiliary reduction |
| ES8602853A ES2003443A6 (en) | 1986-03-03 | 1986-10-31 | Transmission for working vehicle having overtop drive |
| US06/928,561 US4750580A (en) | 1986-03-03 | 1986-11-10 | Transmission for working vehicle having overtop drive |
| DE19863639097 DE3639097A1 (en) | 1986-03-03 | 1986-11-15 | TRANSMISSION ARRANGEMENT FOR A HIGH SPEED WORK VEHICLE |
| CA000523142A CA1272398A (en) | 1986-03-03 | 1986-11-17 | Transmission for working vehicle having overtop drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61046932A JPS62204037A (en) | 1986-03-04 | 1986-03-04 | Transmission for running working vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62204037A true JPS62204037A (en) | 1987-09-08 |
Family
ID=12761096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61046932A Pending JPS62204037A (en) | 1986-03-03 | 1986-03-04 | Transmission for running working vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62204037A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02138569A (en) * | 1988-11-17 | 1990-05-28 | Yanmar Diesel Engine Co Ltd | Gear shift mechanism of tractor |
| JPH03119648U (en) * | 1990-03-23 | 1991-12-10 | ||
| JP2003512583A (en) * | 1999-10-15 | 2003-04-02 | ツェットエフ、フリードリッヒスハーフェン、アクチエンゲゼルシャフト | Switching transmission |
-
1986
- 1986-03-04 JP JP61046932A patent/JPS62204037A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02138569A (en) * | 1988-11-17 | 1990-05-28 | Yanmar Diesel Engine Co Ltd | Gear shift mechanism of tractor |
| JPH03119648U (en) * | 1990-03-23 | 1991-12-10 | ||
| JP2003512583A (en) * | 1999-10-15 | 2003-04-02 | ツェットエフ、フリードリッヒスハーフェン、アクチエンゲゼルシャフト | Switching transmission |
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