JPS5957031A - Front power extracting device of front wheel drive tractor - Google Patents
Front power extracting device of front wheel drive tractorInfo
- Publication number
- JPS5957031A JPS5957031A JP16723882A JP16723882A JPS5957031A JP S5957031 A JPS5957031 A JP S5957031A JP 16723882 A JP16723882 A JP 16723882A JP 16723882 A JP16723882 A JP 16723882A JP S5957031 A JPS5957031 A JP S5957031A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- drive
- gear
- power take
- power extracting
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/28—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、前輪駆動トラクタにおける前部動力取出装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a front power take-off device for a front wheel drive tractor.
ミッションケースの下腹部に設けたギヤケースから前方
へ伝動軸を延設して、フロントアクスルハウジングの下
方に前部動力取出軸を配設、軸支している従来の装置で
は、この前部動力取出軸が低い位置が低くなってしまう
為、トラクタの最低地上高が低くなって畦越え等に不利
であり、又、動力取出位置を作業機の入力軸に合致させ
る為には、フロントアクスルハウジングの前方にてギヤ
ケースとそのギヤ機構を設けて出力軸の高さを高くする
ととＫなるので、このように余分１．ｃ部材を必要とす
る不利点がある。又、クランク軸に前部動力取出軸を連
結した装置も知られているが、変速機構の設置に好適な
空間と方法を見出すことがむつかしく、取出馬力も過小
となる不利がある。In conventional devices, the transmission shaft is extended forward from the gear case installed in the lower part of the transmission case, and the front power take-off shaft is arranged and supported under the front axle housing. Since the lower position of the shaft is lower, the minimum ground clearance of the tractor is lowered, which is disadvantageous for crossing over ridges, etc. Also, in order to match the power take-off position with the input shaft of the work equipment, it is necessary to adjust the front axle housing. If the height of the output shaft is increased by installing a gear case and its gear mechanism at the front, the height will be K, so the extra 1. It has the disadvantage of requiring a C member. Also, a device in which a front power extraction shaft is connected to a crankshaft is known, but it is difficult to find a suitable space and method for installing the transmission mechanism, and there are disadvantages in that the extraction horsepower is too small.
そこでこの発明においては、前輪デフ機構のリングギヤ
に噛合って駆動ギヤケースに内装軸支されているドライ
ブピニオン軸を中空筒状に形成して、この駆動ギヤケー
スに内装している前部動力取出ギヤ機構によって駆動さ
れる前部動力取出軸を、上記ドライブピニオン軸の上記
中空孔に遊挿して前部フレームより前方へ突出せしめる
ように構成して、最低地上高を高くできると共忙、伝達
馬力の充分に大きい前部動力取出が可能となるように工
夫したものである。Therefore, in this invention, the drive pinion shaft that meshes with the ring gear of the front wheel differential mechanism and is internally supported in the drive gear case is formed into a hollow cylinder shape, and the front power take-off gear mechanism is internally installed in the drive gear case. The front power take-off shaft, which is driven by This design allows for sufficiently large front power extraction.
そして具体的構造を図に基づいて例示説明すれば、第２
図に縦断側面を、第３図にそのＡ−Ａ線断面を示したよ
うに前輪デフ機構（１）を内装しているフロントアクス
ルハウジング（２）は、その後部ピボット（３）をトラ
クタの前部フレーム（４）に形成している後部ピボット
受ｒ５）に、その前部ピボット（６）と前部フレーム（
４）に取付けている前部ピボット受（力に夫々枢支して
いる。そして前輪デフ機構（１）のリングギヤ（８）に
噛合うドライブピニオン軸（９）を、ベアリング（１０
）ｆｌυにて後部ピボット（３）の内孔へこれと同心に
軸支し、後部ピボット受（５）の内孔に連通させて前部
フレーム（４）に形成した駆動ギヤケース（ｔａにドラ
イブピニオン軸（９）の後部をのぞかせて、この後部に
嵌着したギヤθｊを、駆動ギヤケースα２にベアリング
（＋４）（１５）にて軸支されている前輪駆動入力軸（
１６）に嵌着したギヤ（１７）に噛合せて前輪駆動ギヤ
機構（１８１とし、この前輪駆動入力軸（ＩＱ）は、図
示を省略しているが第２図の右方後方のミッションケー
ス（１９の下腹部に設けられてミッションケース（」９
内の変速機構にて駆動される駆動ギヤ機構（２（ｅによ
って駆動する構成としている。そして、ドライブピニオ
ン軸（９）は中空筒状忙形成して、この中空孔（９ａ）
に挿通した前部動力取出軸Ｇ！υをベアリング（２’２
１（２３Ｉにて軸支してその前部のスプラインボス（２
１ａ）を前部ピボット受（力の前方へ突出形成し、この
前部動力取出軸（２１）の後部に嵌着したギヤ（２４）
を、第２図においては図示を省略しであるが、駆動ギヤ
ケース（１２の下部に軸支されている前部動力取出駆動
軸（梱に嵌着したギヤ（２０と噛合せて前部動力取出ギ
ヤ機構０７）とし、この前部動力取出駆動軸（？ωは、
ミッションケース（１９の下腹部に設けられてミッショ
ンケースａ９内の変速機構にて駆動される駆動ギヤ機構
（２８１によって駆動するように構成している。Then, if the specific structure is illustrated and explained based on the diagram, the second
The front axle housing (2), which houses the front wheel differential mechanism (1), has its rear pivot (3) located at the front of the tractor, as shown in the longitudinal side view in the figure and the cross section taken along line A-A in Figure 3. The front pivot (6) and the front frame (
The drive pinion shaft (9) that meshes with the ring gear (8) of the front wheel differential mechanism (1) is attached to the front pivot holder (10) attached to the front pivot holder (4).
) A drive gear case (ta) that is pivotally supported concentrically with the inner hole of the rear pivot (3) at flυ and communicated with the inner hole of the rear pivot receiver (5) and formed in the front frame (4). The rear part of the shaft (9) is seen, and the gear θj fitted on the rear part is connected to the front wheel drive input shaft (
This front wheel drive input shaft (IQ) meshes with the gear (17) fitted to the gear (16) to form a front wheel drive gear mechanism (181), and this front wheel drive input shaft (IQ) is connected to the transmission case (181) on the right rear side in Fig. A mission case (''9) is installed in the lower abdomen of the
The drive gear mechanism (2 (e) is driven by the transmission mechanism inside the drive gear mechanism (2).The drive pinion shaft (9) is formed into a hollow cylindrical shape,
Front power take-off shaft G inserted into! Bearing υ (2'2
1 (Pivotally supported at 23I and the front spline boss (2
1a) is a front pivot receiver (a gear (24) formed protruding forward of the force and fitted to the rear of this front power take-off shaft (21)).
Although not shown in Fig. 2, the front power take-off drive shaft (front power take-off drive shaft) which is pivotally supported at the bottom of the drive gear case (12) meshes with the front power take-off drive shaft (gear (20) fitted in the bale). Gear mechanism 07), and this front power take-off drive shaft (?ω is
It is configured to be driven by a drive gear mechanism (281) provided in the lower abdomen of the mission case (19) and driven by a transmission mechanism in the mission case a9.
次に第５図に示した他の実施例の装置は、前部動力取出
軸−の後部にスプラインボス（“９ａ）を形成して、前
部動力取出駆動軸（２５１に嵌着しているギヤｅｅに噛
合うべきギヤ（３０）をこのスプラインボス（２９ａ）
へ軸方向にのみ移動自在に嵌合し、ドライブピニオン軸
ｃ３１）の後部に形成したクラッチ歯（３１ａ）にギヤ
（３０）の前端部に形成したクラッチ＠（：ｎａ）が、
ギヤ（：’ＩＩＩ）の軸方向移動によって噛合うように
設け、ギヤ１セ））を前方へ移動してクラッチ歯（３０
ａ）（３１ａ）を噛合せれば、前部動力取出軸翰がドラ
イブピニオン軸Ｃ３１）と一体に結合されて走行速度に
比例した前部動力取出が行われるよう妃、又、このギヤ
（イ）を後方へ移動してクラッチ歯（側ａ）（３１ａ）
の噛合を外してギヤ（イ）に噛合せれば、前部動力取出
軸（２１＆ま、ドライブピニオン軸Ｃ１１０回転とは無
関係に前部動力取出駆動軸にて駆動されるように構成し
ている。そして、このギヤ（７）とドライブピニオン軸
Ｃ３１）の係脱機構としては、上述のクラッチ歯による
ほか、ハブクラッチタイプのものや油圧クラッチ等を用
いることもできる。尚、第４図において符号Ｃ３２１（
ト）は左右の前輪駆動軸である。Next, in the device of another embodiment shown in FIG. 5, a spline boss ("9a") is formed at the rear of the front power take-off shaft, and the spline boss ("9a") is fitted onto the front power take-off drive shaft (251). The gear (30) that should mesh with gear ee is connected to this spline boss (29a).
A clutch @(:na) formed at the front end of the gear (30) is fitted to be movable only in the axial direction, and is formed at the front end of the gear (30) with the clutch teeth (31a) formed at the rear of the drive pinion shaft c31).
The clutch teeth (30
a) When (31a) is engaged, the front power take-off shaft is integrally connected with the drive pinion shaft C31), and the front power take-off is carried out in proportion to the traveling speed. Clutch teeth (side a) (31a)
When the gear (A) is disengaged and engaged with the gear (A), the front power take-off shaft (21 & M) is configured to be driven by the front power take-off drive shaft regardless of the rotation of the drive pinion shaft C110. As a mechanism for engaging and disengaging the gear (7) and the drive pinion shaft C31), in addition to the above-mentioned clutch teeth, a hub clutch type, a hydraulic clutch, or the like may also be used. In addition, in FIG. 4, the symbol C321 (
(g) is the left and right front wheel drive shaft.
この発明に係る前輪駆動トラクタにおける前部動力取出
装置は、上述のようにドライブピニオン 、軸の中空孔
に前部動力取出軸を遊挿してこの前部動力取出軸からト
ラクタの前部フレームの前方へ動力を取出すように構成
しているので、この前部動力取出軸の配設位置は、フロ
ントアクスルハウジングの下方に配設している従来の装
置に比べてその地上高を充分に高くできたものであって
、畦越え等の際にこの前部動力取出軸が衝突する等の危
険は充分に解消されて、又、作業機の入力軸の高さにも
そのまま合致し易い位置となって、特別に多数の変速部
材を必要としないで伝達馬力の大きい前部動力取出を行
５ことができるのである。As described above, the front power take-off device for a front-wheel drive tractor according to the present invention includes a drive pinion, a front power take-off shaft that is loosely inserted into the hollow hole of the shaft, and a front power take-off shaft that extends from the front power take-off shaft to the front of the front frame of the tractor. Since the front power take-off shaft is configured to extract power from the front axle housing, the location of the front power take-off shaft allows for a sufficiently higher ground clearance compared to conventional devices that are located below the front axle housing. The danger of the front power take-off shaft colliding when going over a ridge, etc. has been fully eliminated, and the position is such that it can easily match the height of the input shaft of the work equipment. Therefore, it is possible to extract power from the front section with a large transmission horsepower without requiring a particularly large number of transmission members.
【図面の簡単な説明】
図はこの発明の実施例を示すもので、第１図はトラクタ
の側面図、第２図は前部動力取出装置の縦断側面図、第
３図は第２図のギヤ機構の正面図、第４図は第２図のＡ
−Ａ線断面図、第５図は他の実施例の縦断側面図である
。
符号説明
（１）・・・前輪デフ機構 （２）・・・フロント
アクスルノ・ウジング（３）・・−後部ピボット
（４）・・・前部フレーム（５）・・・後部ピボット受
（６）・・・前部ピボット（７）・・・前部ピボッ
ト受 （８）・・・リングギヤ（９）Ｇｌ）・・・・
・・ドライブピニオン軸（９ａ） ＝中空孔
ｏｏ）Ｃｔ］Ｊｎ、Ｈ５１＋２３（２３＋−・・ベアリ
ング（１２・・・駆動ギヤケース （１３）Ｑ画４１
（２６）（３０）・・・ギヤ（１６）・・・前輪、駆動
入力軸 ＋１８）−・・前輪駆動ギヤ機構（１（ト）
・・・ミッションケース （２ω（２印・・・駆動ギヤ
機構（２１）（２ω・・・前部動力取出軸 （２１ａ）
（２９ａ）・・・スプラインボス（ハ）・・・前部動力
取出駆動軸（３Ｃ１ａＸ３１ａ）・・・クラッチ歯１２
７）・・・・・・前部動力取出ギヤ機構（３２１（３３
・・・前輪駆動軸
特許 出願人 井関農機株式会社
代理人 弁理士 林 孝 吉手続補正４（
方式）
昭和５Ｅｋ３．ｅ４日
特許庁 長官 若杉和夫殿
１ 事件の表示
特願昭ｆｉ？−１６７２８８号
２、発明の名称
前ｍ創動トラクタにおける前部動力取出装置柱 所
４ 代 理 人
〒１０３ 東京都中央区日本橋茅場町１丁目１１番２
号置 （６６Ｂ） ７ ９ ２ １〜３（６０５７
） 弁理士 林 孝 吉１５７−[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show an embodiment of the present invention, in which FIG. 1 is a side view of a tractor, FIG. 2 is a vertical side view of a front power take-off device, and FIG. Front view of the gear mechanism, Figure 4 is A in Figure 2
- A sectional view, and FIG. 5 is a longitudinal sectional side view of another embodiment. Symbol explanation (1)...Front wheel differential mechanism (2)...Front axle nozzle (3)...-Rear pivot
(4)...Front frame (5)...Rear pivot receiver (6)...Front pivot (7)...Front pivot receiver (8)...Ring gear (9) Gl) ...
...Drive pinion shaft (9a) = hollow hole
oo)Ct] Jn, H51+23 (23+-... Bearing (12... Drive gear case (13) Q picture 41
(26) (30)...Gear (16)...Front wheel, drive input shaft +18)-...Front wheel drive gear mechanism (1 (g)
...Mission case (2ω (2 mark)...Drive gear mechanism (21) (2ω...Front power take-off shaft (21a)
(29a)...Spline boss (c)...Front power take-off drive shaft (3C1aX31a)...Clutch tooth 12
7)...Front power take-off gear mechanism (321 (33)
...Front wheel drive shaft patent Applicant: Iseki Agricultural Machinery Co., Ltd. Agent Patent attorney: Takayoshi Hayashi Proceedings Amendment 4 (
Method) Showa 5Ek3. e4th Patent Office Commissioner Kazuo Wakasugi 1 Case indication patent application Shofi? -167288 No. 2, Name of the invention Front power take-off device pillar in front m-motor tractor Location 4 Deputy Director Address: 1-11-2 Kayabacho, Nihonbashi, Chuo-ku, Tokyo 103 Japan
Number (66B) 7 9 2 1-3 (6057
) Patent Attorney Takayoshi Hayashi 157-
Claims (1)
内装軸支されているドライブピニオン軸を中空筒状に形
成して、この駆動ギヤケースに内装している前部動力取
出ギヤ機構によって駆動される前部動力取出軸を、上記
ドライブピニオン軸の上記中空孔に遊挿して前部フレー
ムより前方へ突出せしめてなる前輪駆動トラクタにおけ
る前部動力取出装置。The drive pinion shaft, which meshes with the ring gear of the front wheel differential mechanism and is internally supported in the drive gear case, is formed into a hollow cylindrical shape, and the front section is driven by the front power take-off gear mechanism internally installed in the drive gear case. A front power take-off device for a front wheel drive tractor, wherein a power take-off shaft is loosely inserted into the hollow hole of the drive pinion shaft and projects forward from the front frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16723882A JPS5957031A (en) | 1982-09-25 | 1982-09-25 | Front power extracting device of front wheel drive tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16723882A JPS5957031A (en) | 1982-09-25 | 1982-09-25 | Front power extracting device of front wheel drive tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5957031A true JPS5957031A (en) | 1984-04-02 |
Family
ID=15846015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16723882A Pending JPS5957031A (en) | 1982-09-25 | 1982-09-25 | Front power extracting device of front wheel drive tractor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5957031A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2003903C2 (en) * | 2009-12-03 | 2011-06-06 | Zuidberg Techniek Holding B V | FRONT AXLE ASSEMBLY FOR AN AGRICULTURAL TRACTOR. |
-
1982
- 1982-09-25 JP JP16723882A patent/JPS5957031A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2003903C2 (en) * | 2009-12-03 | 2011-06-06 | Zuidberg Techniek Holding B V | FRONT AXLE ASSEMBLY FOR AN AGRICULTURAL TRACTOR. |
| EP2329968A1 (en) * | 2009-12-03 | 2011-06-08 | Zuidberg Techniek Holding B.V. | Front axle assembly for an agricultural tractor |
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