JPS598897Y2 - Power extraction mechanism of power agricultural machinery - Google Patents

Power extraction mechanism of power agricultural machinery

Info

Publication number
JPS598897Y2
JPS598897Y2 JP12061378U JP12061378U JPS598897Y2 JP S598897 Y2 JPS598897 Y2 JP S598897Y2 JP 12061378 U JP12061378 U JP 12061378U JP 12061378 U JP12061378 U JP 12061378U JP S598897 Y2 JPS598897 Y2 JP S598897Y2
Authority
JP
Japan
Prior art keywords
shaft
gear
power
shaft portion
disc
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
Application number
JP12061378U
Other languages
Japanese (ja)
Other versions
JPS5536078U (en
Inventor
矩生 首藤
望 片上
通 平岡
Original Assignee
井関農機株式会社
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 井関農機株式会社 filed Critical 井関農機株式会社
Priority to JP12061378U priority Critical patent/JPS598897Y2/en
Publication of JPS5536078U publication Critical patent/JPS5536078U/ja
Application granted granted Critical
Publication of JPS598897Y2 publication Critical patent/JPS598897Y2/en
Expired legal-status Critical Current

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Description

【考案の詳細な説明】 この考案はトラクターの如き動力農機の動力取出機構に
関するものである。
[Detailed description of the invention] This invention relates to a power extraction mechanism for power agricultural machinery such as a tractor.

例えばドライブピニオンシャフトの如き後輪駆動用の回
転軸に対して例えば前輪駆動用又は作業機駆動用の動力
をミツションケースの下部から取出す構戒の場合、この
回転軸と上記動力取出軸とを、カウンタシャフトとカウ
ンタギャを備えたギヤ機構によって連動する構造を一般
に使用している。
For example, in the case of a configuration in which power for driving the front wheels or driving a work machine is taken out from the lower part of the transmission case for a rotating shaft for driving the rear wheels such as a drive pinion shaft, this rotating shaft and the above-mentioned power extraction shaft are connected. , generally uses a structure that is interlocked by a gear mechanism with a counter shaft and a counter gear.

そして後輪タイヤ径を変更したとき、或いはミッション
機構の変速比を変更する仕様が必要であるときは、上記
ギヤ機構のギヤを取替えることになるが、ギヤ機構の変
速比を任意に変更せんとしても、カウンタ軸の軸支位置
も、変更しなければならず、ミッションケースの軸支孔
を変更することは面倒であるため、実施が困難であった
When the diameter of the rear tire is changed, or when it is necessary to change the gear ratio of the transmission mechanism, the gears of the gear mechanism mentioned above must be replaced, but the gear ratio of the gear mechanism cannot be changed arbitrarily. However, the pivot position of the counter shaft also has to be changed, and changing the pivot hole of the transmission case is troublesome, so it has been difficult to implement.

そしてこの考案においては、上記回転軸に対する動力取
出軸の回転比の変更を、カウンタシャフト及びこれを嵌
着固定する軸受体等の交換によって容易に行うことがで
きるように工夫したものであって、その構戊は、ミッシ
ョンケース1に互に隣接して軸支した2個の回転軸9,
12の1つの回転軸12の軸受の嵌着孔1aに、その軸
部22 bに対して偏心させて円板22 aを設けたカ
ウンタシャフト22のこの円板22 aを嵌着し、ミッ
ションケース1の開口端部に取外し可能に取付けた軸受
体2にて、軸部22 bを支持し、他の回転軸9に設け
たギャ25を、軸部22 b上を遊転せしめたカウンタ
ギャ23に噛合いできるように設け、カウンタギャ23
に噛合うようにミッションケース1の下部に設けた動力
取出ギャ26と上記他の回転軸9の夫々から、回転動力
を取出すようにした動力農機の動力取出機構である。
In this invention, the rotation ratio of the power take-off shaft to the rotating shaft can be easily changed by replacing the countershaft and the bearing body that fits and fixes the countershaft. Its structure consists of two rotating shafts 9, which are supported adjacent to each other in the mission case 1.
The disc 22a of the countershaft 22, which is provided with a disc 22a eccentrically with respect to the shaft portion 22b, is fitted into the fitting hole 1a of the bearing of one of the rotating shafts 12 of the countershaft 22, and the transmission case is assembled. A counter gear 23 supports a shaft part 22b with a bearing body 2 removably attached to the open end of one rotary shaft 9, and allows a gear 25 provided on another rotating shaft 9 to freely rotate on the shaft part 22b. The counter gear 23 is provided so that it can mesh with the counter gear 23.
This is a power take-off mechanism for a power-powered agricultural machine in which rotational power is taken out from a power take-off gear 26 provided at the lower part of the mission case 1 and the other rotating shaft 9, respectively, so as to mesh with each other.

次にこの考案を図示の1実施例にもとづいて説明すれば
、トラクターのミッションケース1の前端部にはカバー
状の軸受体2を合着して、図示外の取付ボルトを用いて
軸受体2をミッションケース1に固定し、後端に歯部3
aを設けたインプットシャフト3を前後のベアリング4
,5にて軸受体2とミッションケース1に軸支し、この
インプットシャフト3の後端に嵌着したベアリング6と
ミッションケース1の後端に嵌着したベアリング7にて
チェンジシャフト8を軸支し、又、このチェンジシャフ
ト8に隣接して前端を軸受体2内にのぞかせたドライブ
ピニオンシャフトの如き回転軸9をベアリング10,
11, 11にてミッションケース1に軸支し、ミッシ
ョンケース1の最下位にはPTOドライブシャフトの如
き回転軸12をベアリング13, 14にて軸支し、チ
ェンジシャフト8上のチェンジギャ15, 16, 1
7を前後に摺動させて、回転軸9上を遊転し大小径の歯
部を備えたカウンタギャ18又は、この回転軸9に嵌着
した最終段のカウンタギャ19と、夫々、噛合せれば、
この回転軸9は適宜変速されて回転して、後端のドライ
ブピニオン20は差動歯車機構のリングギャ21を回転
して図示外の後輪が駆動されるものである。
Next, this invention will be explained based on the illustrated embodiment. A cover-shaped bearing body 2 is attached to the front end of the transmission case 1 of a tractor, and the bearing body 2 is attached using a mounting bolt (not shown). is fixed to the transmission case 1, and the tooth part 3 is attached to the rear end.
The input shaft 3 equipped with a is connected to the front and rear bearings 4.
, 5 to support the bearing body 2 and the transmission case 1, and the change shaft 8 to be supported by the bearing 6 fitted to the rear end of the input shaft 3 and the bearing 7 fitted to the rear end of the transmission case 1. In addition, a rotating shaft 9 such as a drive pinion shaft with its front end exposed inside the bearing body 2 is connected to a bearing 10 adjacent to the change shaft 8.
A rotary shaft 12 such as a PTO drive shaft is pivotally supported at the lowest part of the mission case 1 by bearings 13 and 14, and change gears 15 and 16 on the change shaft 8. , 1
7 is slid back and forth to mesh with a counter gear 18 that freely rotates on the rotating shaft 9 and has teeth of large and small diameters, or with a final stage counter gear 19 that is fitted onto the rotating shaft 9. Ba,
This rotary shaft 9 rotates while changing its speed as appropriate, and a drive pinion 20 at the rear end rotates a ring gear 21 of a differential gear mechanism to drive a rear wheel (not shown).

そして第3図イ,口に示したよ.うに円板22 aの中
心に対して偏芯量Dだけ偏芯させて円柱状の軸部22
bを直角に貫入し、溶接などの手段を用いて軸部22
bをこの円板22 aに固着してカウンタシャフト22
とする。
And in Figure 3, I showed it in the mouth. The cylindrical shaft portion 22 is eccentric by an eccentric amount D with respect to the center of the disk 22 a.
b at a right angle, and the shaft portion 22 is attached using means such as welding.
b is fixed to this disk 22 a and the counter shaft 22
shall be.

そして、第1図のミッションケース1において、ベアリ
ング13の嵌着孔1aにこの円板22 aを嵌着すれば
、軸部22 bは軸受体2の円筒孔2aに嵌着できるこ
とになるように形或し、このように嵌着された軸部22
bにカウンタギャ23をベアリング24を介して遊転
させる。
In the mission case 1 shown in FIG. 1, if the disc 22a is fitted into the fitting hole 1a of the bearing 13, the shaft portion 22b can be fitted into the cylindrical hole 2a of the bearing body 2. Shape or shaft part 22 fitted in this way
b, the counter gear 23 is freely rotated via the bearing 24.

そして、回転軸9には軸受体2内にのぞいている前端の
スプラインボスにギャ25を軸方向にのみ摺動可能に嵌
大して、このギャ25をカウンタギャ23に噛合又は離
脱自在とする。
A gear 25 is fitted onto a spline boss at the front end of the rotating shaft 9 so as to be slidable only in the axial direction, so that the gear 25 can be freely engaged with or disengaged from the counter gear 23.

そして、軸受体2の下部にはカウンタギャ23に常時噛
合う動力取出ギャ26をベアリング27. 28にて軸
支し、軸受体2の前方へ突出させたこの動力取出ギャ2
6のスフ゜ラインボス26 aには、自在伝動軸29を
連結し、この自在伝動軸29はミッションケース1の前
部に取付けられているクラッチハウジング30の下方を
通ってこのトラクターの図示外の前輪を駆動できるよう
に構或している。
At the bottom of the bearing body 2, a bearing 27. This power take-off gear 2 is pivotally supported at 28 and protrudes forward of the bearing body 2.
A universal transmission shaft 29 is connected to the sphere line boss 26 a of No. 6, and this universal transmission shaft 29 passes under a clutch housing 30 attached to the front part of the transmission case 1 and connects a front wheel (not shown) of this tractor. It is constructed so that it can be driven.

したがってインプットシャフト3の前端に連結した出力
軸31を図示外のエンジンにて回転すれば、回転軸9は
、チェンジギャ15, 16の何れかとカウンタギャ1
8の噛合、チェンジギャ17とカウンタギャ19の噛合
によって適宜な回転速度に変速され、したがってドライ
ブピニオン20は図示外の後輪をこの回転軸9の回転速
度に比例した速度で回転駆動することになる。
Therefore, if the output shaft 31 connected to the front end of the input shaft 3 is rotated by an engine not shown, the rotating shaft 9 will be connected to either the change gear 15 or 16 and the counter gear 1.
8 and the change gear 17 and the counter gear 19, the rotational speed is changed to an appropriate speed, and therefore the drive pinion 20 drives the rear wheel (not shown) to rotate at a speed proportional to the rotational speed of the rotating shaft 9. Become.

そこで、ギャ25を摺動せしめてカウンタギャ23に噛
合せれば、動力取出ギャ26は回転軸9の回転速度を、
動力取出ギャ26とギャ25の歯数比に比例した大きさ
に変速することになり、したがってこの動力取出ギャ2
6に連結された自在伝動軸29は、図示外の前輪を動力
取出ギャ26とギャ25の歯数比に比例した回転速度に
て回転駆動することになる。
Therefore, if the gear 25 is slid and engaged with the counter gear 23, the power take-off gear 26 will control the rotational speed of the rotating shaft 9.
The speed is changed in proportion to the tooth ratio between the power take-off gear 26 and the gear 25, and therefore the power take-off gear 2
The universal transmission shaft 29 connected to the gear 6 rotates a front wheel (not shown) at a rotational speed proportional to the ratio of the number of teeth between the power take-off gear 26 and the gear 25.

したがって、このギャ25と動力取出ギャ26の歯数を
変更することによって、このトラクターの前輪と後輪の
回転速度の割合を変更できるものである。
Therefore, by changing the number of teeth of the gear 25 and the power take-off gear 26, the ratio of the rotational speeds of the front wheels and rear wheels of this tractor can be changed.

この考案に係る動力農機の動力取出機構は上述の構戒を
有するものであって、例えば動力取出ギャ26を前輪駆
動に使用したり、或いは動力農機の走行速度に比例した
作業動力取出に使用する場合において、例えば後輪のタ
イヤ径の異なるものに仕様変更すべき場合、さらにはミ
ッションケース1内のミッション機構の変速ギヤ比の仕
様変更を行う場合には、ギャ25と動力取出ギャ26を
夫々のピッチ径の異なるものに交換し、円板22の軸部
22 bの偏芯量Dが異なる予め準備してあるカウンタ
シャフト22に交換し、円筒孔2aの位置が、上記偏芯
量Dに応じて変更されている軸受体2に交換すれば、回
転軸9に対して所望の回転比の動力を、動力取出ギャ2
6から取出すことができるものであり、ミッションケー
ス1の軸支孔は全く変更する必要が無く、小さい部材で
ある軸受体2、カウンタ軸22等の交換にて足りるので
、部品費及び作業費共に安価となったのである。
The power take-off mechanism of the power agricultural machine according to this invention has the above-mentioned structure, and for example, the power take-off gear 26 is used for front wheel drive, or is used to take out working power proportional to the running speed of the power agricultural machine. In this case, for example, if the specification of the rear wheel is to be changed to one with a different tire diameter, or furthermore, if the specification of the transmission gear ratio of the transmission mechanism in the transmission case 1 is to be changed, the gear 25 and the power take-off gear 26 should be changed respectively. The countershaft 22 is replaced with one having a different pitch diameter, and the counter shaft 22 of the disk 22 is replaced with a previously prepared countershaft 22 having a different eccentricity D of the shaft portion 22b, and the position of the cylindrical hole 2a is adjusted to the eccentricity D. If the bearing body 2 is replaced with a correspondingly modified bearing body 2, the power of the desired rotation ratio to the rotating shaft 9 can be transferred to the power take-off gear 2.
6, there is no need to change the shaft support hole of the transmission case 1 at all, and it is sufficient to replace the small parts such as the bearing body 2 and the counter shaft 22, so both parts and labor costs are reduced. It became cheaper.

なお、回転軸12の軸支位置を変更して加工する場合に
おいても、偏芯シャフト22を使用することによって、
回転軸12のベアリング13の嵌着孔1aに偏芯シャフ
ト22の円板22 aを嵌着できる構造となし得たため
、この嵌着孔1aの加工は単純な通し孔加工で済み、又
、偏芯シャフト22の軸部22 bは、軸受体2の円筒
孔2aと円板22 aが嵌着されるミッションケース1
の嵌着孔1aの双方にて支持されているため、曲げ変形
も殆んど無く、確実に支持できたのである。
Note that even when machining is performed by changing the shaft support position of the rotating shaft 12, by using the eccentric shaft 22,
Since we were able to create a structure in which the disc 22a of the eccentric shaft 22 can be fitted into the fitting hole 1a of the bearing 13 of the rotating shaft 12, the fitting hole 1a can be fabricated by a simple through-hole process, and The shaft portion 22b of the core shaft 22 is connected to the mission case 1 in which the cylindrical hole 2a of the bearing body 2 and the disc 22a are fitted.
Since it was supported by both of the fitting holes 1a, there was almost no bending deformation and it was possible to support it reliably.

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

第1図はこの考案を適用したトラクターのミッションケ
ースの縦断側面図、第2図は第1図におけるA−A線断
面図、第3図イはこの考案に用いる偏芯シャフトの縦断
正面図、同図口は同図イにおける側面図である。 符号説明、1・・・・・・ミッションケース、1a・・
・・・・嵌着孔、2・・・・・・軸受体、2a・・・・
・・円筒孔、3・・・・・・インプットシャフト、3a
・・・・・・歯部、4, 5, 6,7, 10,
11, 13, 14, 24, 27, 28・・
・・・・ベアリング、8・・・・・・チェンジシャフト
、9,12・・・・・・回転軸、26a・・・・・・ス
プラインボス、15, 16, 17・・・・・・チェ
ンジギャ、18, 19, 23・・・・・・カウンタ
ギャ、20・・・・・・ドライフ゛ピニオン、21・・
・・・・リングギャ、22・・・・・・カウンタシャフ
ト、22a・・・・・・円板、22 b・・・・・・軸
部、25・・・・・・ギヤ、26・・・・・・動力取出
ギャ、29・・・・・・自在伝動軸、30・・・・・・
クラッチハウジング、31・・・・・・出力軸。
Fig. 1 is a longitudinal sectional side view of a transmission case of a tractor to which this invention is applied, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 A is a longitudinal sectional front view of an eccentric shaft used in this invention. The opening in the figure is a side view in A of the figure. Code explanation, 1...Mission case, 1a...
...Fitting hole, 2...Bearing body, 2a...
...Cylindrical hole, 3...Input shaft, 3a
・・・・・・Tooth part, 4, 5, 6, 7, 10,
11, 13, 14, 24, 27, 28...
... Bearing, 8 ... Change shaft, 9, 12 ... Rotating shaft, 26a ... Spline boss, 15, 16, 17 ... Change Gear, 18, 19, 23... Counter gear, 20... Dry pinion, 21...
... Ring gear, 22 ... Counter shaft, 22 a ... Disc, 22 b ... Shaft portion, 25 ... Gear, 26 ... ...Power take-off gear, 29...Universal transmission shaft, 30...
Clutch housing, 31...Output shaft.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ミッションケース1に互に隣接して軸支した2個の回転
軸9,12のlつの回転軸12の軸受の嵌着孔1aに、
その軸部22 bに対して偏心させて円板22 aを設
けたカウンタシャフト22のこの円板22 aを嵌着し
、ミッションケース1の開口端部に取外し可能に取付け
た軸受体2にて、軸部22 bを支持し、他の回転軸9
に設けたギャ25を、軸部22b上を遊転せしめたカウ
ンタギャ23に噛合いできるように設け、カウンタギャ
23に噛合うようにミッションケース1の下部に設けた
動力取出ギャ26と、上記他の回転軸9の夫々から、回
転動力を取出すようにしてなる動力農機の動力取出機構
In the fitting hole 1a of the bearing of one rotating shaft 12 of the two rotating shafts 9 and 12 which are supported adjacent to each other in the mission case 1,
The disc 22a of the countershaft 22 is provided with a disc 22a eccentrically relative to the shaft portion 22b, and the disc 22a is fitted onto the bearing body 2, which is removably attached to the open end of the mission case 1. , supports the shaft portion 22 b, and supports the other rotating shaft 9
A gear 25 provided on the shaft portion 22b is provided so as to be able to mesh with the counter gear 23 freely rotating on the shaft portion 22b. A power extraction mechanism for a power agricultural machine configured to extract rotational power from each of the other rotating shafts 9.
JP12061378U 1978-09-01 1978-09-01 Power extraction mechanism of power agricultural machinery Expired JPS598897Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12061378U JPS598897Y2 (en) 1978-09-01 1978-09-01 Power extraction mechanism of power agricultural machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12061378U JPS598897Y2 (en) 1978-09-01 1978-09-01 Power extraction mechanism of power agricultural machinery

Publications (2)

Publication Number Publication Date
JPS5536078U JPS5536078U (en) 1980-03-07
JPS598897Y2 true JPS598897Y2 (en) 1984-03-21

Family

ID=29076996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12061378U Expired JPS598897Y2 (en) 1978-09-01 1978-09-01 Power extraction mechanism of power agricultural machinery

Country Status (1)

Country Link
JP (1) JPS598897Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836302Y2 (en) * 1979-01-27 1983-08-16 竹下産業株式会社 Glue stripping device

Also Published As

Publication number Publication date
JPS5536078U (en) 1980-03-07

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