JPH09109711A - Pto transmission - Google Patents

Pto transmission

Info

Publication number
JPH09109711A
JPH09109711A JP29337595A JP29337595A JPH09109711A JP H09109711 A JPH09109711 A JP H09109711A JP 29337595 A JP29337595 A JP 29337595A JP 29337595 A JP29337595 A JP 29337595A JP H09109711 A JPH09109711 A JP H09109711A
Authority
JP
Japan
Prior art keywords
gear
meshing
driven
spline
selective
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.)
Granted
Application number
JP29337595A
Other languages
Japanese (ja)
Other versions
JP3257937B2 (en
Inventor
Yasuhide Yamazaki
康秀 山崎
Hiroyuki Kanayama
浩之 金山
Masanori Ishikawa
昌範 石川
Shigero Tanaka
茂郎 田中
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 JP29337595A priority Critical patent/JP3257937B2/en
Publication of JPH09109711A publication Critical patent/JPH09109711A/en
Application granted granted Critical
Publication of JP3257937B2 publication Critical patent/JP3257937B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To aim at improvement in operativeness of PTO transmission by no more requiring setting the strength of respective driven gears individually or security of a long meshing margin on one side meshing part, resultantly by approximately unformalizing a transmission control stroke as well as planning simplification of a manufacturing process. SOLUTION: When meshing parts 11a, 12a with which selective meshing gears 16 selectively mesh are formed on the first and second driven gears 11, 12 having mutually different transmission toques, the meshing part 11a of a large diametrical internal gear shape is formed in the first driven gear 11 with a large transmission torque, while on the second driven gear 12 of a small transmission torque, a meshing part 12a of a small diametrical external gear spline shape is formed.

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、トラクタに設けら
れるPTO変速装置の技術分野に属するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of PTO transmissions provided on tractors.

【0002】[0002]

【従来の技術】一般に、この種トラクタに設けられるP
TO変速装置のなかには、従動側変速軸に遊転自在に設
けられる第一および第二従動ギヤを、駆動側変速軸に一
体的に設けられる第一および第二駆動ギヤにそれぞれ常
時噛合させると共に、前記第一、第二従動ギヤ間に、従
動側変速軸と一体的に回転するスプラインカラーを配置
し、さらにスプラインカラーには、第一および第二従動
ギヤにそれぞれ形成される噛合部と、駆動側変速軸に一
体的に設けられる第三駆動ギヤとに選択的に噛合可能な
選択噛合ギヤをスプライン嵌合して構成されるものがあ
り、そして、このものは、一つの選択噛合ギヤの操作に
基づいて三段の変速を行うことができる許りでなく、変
速機構をコンパクトに構成できるという利点を有してい
る。
2. Description of the Related Art Generally, a P provided in this type of tractor
In the TO transmission, the first and second driven gears that are freely rotatably provided on the driven-side speed change shaft are always meshed with the first and second drive gears that are integrally provided on the drive-side speed change shaft, respectively, and A spline collar that rotates integrally with the driven speed change shaft is disposed between the first and second driven gears, and the spline collar further includes a meshing portion formed in each of the first and second driven gears and a drive unit. There is a structure in which a selective meshing gear that can selectively mesh with a third drive gear that is integrally provided on the side speed change shaft is configured by spline fitting, and this is the operation of one selective meshing gear. It is not permissible to perform a three-speed shift based on the above, and has the advantage that the speed change mechanism can be made compact.

【0003】[0003]

【発明が解決しようとする課題】ところで、前記第一お
よび第二従動ギヤの噛合部を同一径とした場合には、各
従動ギヤの伝達トルクが相違することに起因し、各噛合
部に作用する噛合負荷にバラツキが生じるため、各従動
ギヤの強度をそれぞれ個別に設定したり、一方の噛合部
の噛合代を長く確保したりする必要があり、その結果、
製造工程の複雑化を招く許りでなく、変速操作ストロー
クにバラツキが生じる不都合があった。
By the way, when the meshing portions of the first and second driven gears have the same diameter, the transmission torques of the respective driven gears are different from each other, so that they act on the meshing portions. Since there is variation in the meshing load that occurs, it is necessary to individually set the strength of each driven gear and to secure a long meshing allowance for one meshing part.
This is not acceptable as it complicates the manufacturing process, and there is a problem that the shift operation stroke varies.

【0004】[0004]

【課題を解決するための手段】本発明は、上記の如き実
情に鑑みこれらの課題を解決することができるPTO変
速装置を提供することを目的として創作されたものであ
って、従動側変速軸に遊転自在に設けられる第一および
第二従動ギヤを、駆動側変速軸に一体的に設けられる第
一および第二駆動ギヤにそれぞれ常時噛合させると共
に、前記第一、第二従動ギヤ間に、従動側変速軸と一体
的に回転するスプラインカラーを配置し、さらにスプラ
インカラーには、第一および第二従動ギヤにそれぞれ形
成される噛合部と、駆動側変速軸に一体的に設けられる
第三駆動ギヤとに選択的に噛合可能な選択噛合ギヤをス
プライン嵌合してなるPTO変速装置において、前記従
動ギヤのうち、伝達トルクが大きい側の従動ギヤには、
スプラインカラーよりも大径な内歯ギヤ形状の噛合部を
形成し、選択噛合ギヤに形成される外歯ギヤ形状の選択
噛合部を選択的に噛合させる一方、伝達トルクが小さい
側の従動ギヤには、スプラインカラーに連続する外歯ス
プライン形状の噛合部を形成し、選択噛合ギヤの内歯ス
プラインを選択的に噛合させるものである。つまり、伝
達トルクが相違する第一および第二従動ギヤに、それぞ
れ選択噛合ギヤが選択的に噛合する噛合部を形成するに
あたり、伝達トルクが大きい側の従動ギヤには大径の噛
合部を形成する一方、伝達トルクが小さい側の従動ギヤ
には小径の噛合部を形成したため、各噛合部に作用する
噛合負荷を可及的に均一化することができる。従って、
各従動ギヤの強度をそれぞれ個別に設定したり、一方の
噛合部の噛合代を長く確保したりすることが不要とな
り、その結果、製造工程の複雑化を回避できる許りでな
く、変速操作ストロークを略同一にして操作性の向上も
計ることができる。
SUMMARY OF THE INVENTION The present invention has been made with the object of providing a PTO transmission capable of solving these problems in view of the above-mentioned actual circumstances. The first and second driven gears that are freely rotatably attached to the first and second drive gears that are integrally provided on the drive-side speed change shaft, respectively, and between the first and second driven gears. A spline collar that rotates integrally with the driven side shift shaft, and the spline collar further includes a meshing portion formed on each of the first and second driven gears, and a spline collar provided integrally with the drive side shift shaft. In a PTO transmission in which a selective meshing gear capable of selectively meshing with the three drive gears is spline-fitted, a driven gear on the side having a large transmission torque among the driven gears is
An internal gear-shaped meshing part with a larger diameter than the spline collar is formed, and the external gear-shaped selective meshing part formed on the selective meshing gear is selectively meshed, while the driven gear on the smaller transmission torque side Is to form an externally toothed spline-shaped meshing portion continuous to the spline collar and selectively mesh the internally toothed splines of the selectively meshing gear. That is, when forming the meshing portion where the selective meshing gear selectively meshes with the first and second driven gears having different transmission torques, a large-diameter meshing portion is formed in the driven gear on the side where the transmission torque is large. On the other hand, since the small gear meshing portion is formed in the driven gear on the side where the transmission torque is small, the meshing load acting on each meshing portion can be made as uniform as possible. Therefore,
It is no longer necessary to individually set the strength of each driven gear or to secure a long meshing allowance for one meshing part.As a result, it is not possible to avoid complication of the manufacturing process, and It is possible to improve the operability by making them substantially the same.

【0005】また、上記の選択噛合ギヤを、第三駆動ギ
ヤに選択的に噛合する外歯ギヤ部を中心として前後対称
形状に形成したものである。つまり、選択噛合ギヤの前
後バランスを均一化して選択噛合ギヤの倒れを防止する
ことができる許りでなく、選択噛合ギヤの組付け方向を
間違えるような不都合も解消することができ、しかも、
一方の噛合部に摩耗、欠損等が生じた場合に、組付け方
向を反転させるだけで応急的な修理ができるという利点
がある。
Further, the above-mentioned selective meshing gear is formed in a front-rear symmetrical shape around an external gear part which selectively meshes with the third drive gear. That is, it is not possible to prevent the selective meshing gear from collapsing by equalizing the front-rear balance of the selective meshing gear, and it is possible to eliminate the inconvenience that the mounting direction of the selective meshing gear is wrong.
If wear or loss occurs in one of the meshing parts, there is an advantage that emergency repair can be performed simply by reversing the assembling direction.

【0006】[0006]

【発明の実施の形態】次に、本発明の実施の形態の一つ
を図面に基づいて説明する。図面において、1はトラク
タのトランスミッションケースであって、該トランスミ
ッションケース1の後部には、互いに平行な駆動側変速
軸2およびPTO軸(従動側変速軸)3がそれぞれ軸受
4〜7を介して回転自在に支持されており、そして、P
TO軸3の後端側はトランスミッションケース1から突
出する一方、駆動側変速軸2の前端側はクラッチ機構等
を介してエンジン出力軸に連動連結されている。
Next, one embodiment of the present invention will be described with reference to the drawings. In the drawings, 1 is a transmission case of a tractor, and a drive side transmission shaft 2 and a PTO shaft (driven side transmission shaft) 3 which are parallel to each other rotate at the rear of the transmission case 1 via bearings 4 to 7, respectively. Freely supported and P
The rear end side of the TO shaft 3 projects from the transmission case 1, while the front end side of the drive side transmission shaft 2 is interlocked with the engine output shaft via a clutch mechanism or the like.

【0007】8〜10は前記駆動側変速軸2に所定間隔
を存して一体的に設けられる第一〜第三の駆動ギヤであ
って、該駆動ギヤ8〜10のうち、前側に位置する第一
駆動ギヤ8の歯数をT1、後側に位置する第二駆動ギヤ
9の歯数をT2、中間に位置する第三駆動ギヤ10の歯
数をT3とした場合、不等式「T2>T3>T1」が成
立するように歯数が設定されている。
Reference numerals 8 to 10 denote first to third drive gears integrally provided on the drive side speed change shaft 2 with a predetermined space therebetween, and are located on the front side of the drive gears 8 to 10. When the number of teeth of the first drive gear 8 is T1, the number of teeth of the second drive gear 9 located on the rear side is T2, and the number of teeth of the third drive gear 10 located in the middle is T3, the inequality "T2>T3" The number of teeth is set so that “T1” is satisfied.

【0008】一方、11および12はPTO軸3に所定
間隔を存して設けられる第一および第二従動ギヤであっ
て、該第一および第二従動ギヤ11、12は、それぞれ
軸受13、14を介してPTO軸3に遊転自在に支持さ
れるが、前側の第一従動ギヤ11は前記第一駆動ギヤ8
に常時噛合する一方、後側の第二従動ギヤ12は前記第
二駆動ギヤ9に常時噛合している。つまり、第一従動ギ
ヤ11は減速比の大きい変速経路(低速)を構成する一
方、第二従動ギヤ12は減速比の小さい変速経路(高
速)を構成しているため、第一従動ギヤ11は第二従動
ギヤ12に比して大きなトルクを伝達するようになって
いる。
On the other hand, 11 and 12 are first and second driven gears provided on the PTO shaft 3 at a predetermined interval, and the first and second driven gears 11 and 12 are bearings 13 and 14, respectively. The first driven gear 11 on the front side is supported by the PTO shaft 3 in a freely rotatable manner via the
The second driven gear 12 on the rear side always meshes with the second drive gear 9. That is, the first driven gear 11 constitutes a speed change path (low speed) having a large reduction ratio, while the second driven gear 12 constitutes a speed change path (high speed) having a small reduction ratio. Larger torque is transmitted than that of the second driven gear 12.

【0009】15はPTO軸3にスプライン嵌合される
スプラインカラーであって、該スプラインカラー15
は、前記第一、第二従動ギヤ11、12間に配置され、
その外周部に形成される外歯スプラインには、選択噛合
ギヤ16が軸方向摺動自在にスプライン嵌合されてい
る。そして、選択噛合ギヤ16の前後中間部には、第三
駆動ギヤ10に直接的に選択噛合する外歯ギヤ部16a
が形成されるが、さらに選択噛合ギヤ16は、第一従動
ギヤ11の後面部および第二従動ギヤ12の前面部に形
成される噛合部11a、12aに選択的に噛合すること
ができるようになっている。
Reference numeral 15 is a spline collar fitted to the PTO shaft 3 by a spline.
Is disposed between the first and second driven gears 11 and 12,
The selective meshing gear 16 is axially slidably spline-fitted to the external tooth spline formed on the outer peripheral portion thereof. The external gear portion 16a that directly and selectively meshes with the third drive gear 10 is provided at the front and rear intermediate portion of the selective mesh gear 16.
However, the selective meshing gear 16 is configured to be selectively meshed with meshing portions 11a and 12a formed on the rear surface of the first driven gear 11 and the front surface of the second driven gear 12. Has become.

【0010】前記噛合部11a、12bのうち、第一従
動ギヤ11に形成される噛合部11aは、スプラインカ
ラー15よりも大径な内歯ギヤ形状に形成されており、
選択噛合ギヤ16の前端部に形成される外歯ギヤ形状の
選択噛合部16bを選択的に噛合させることができるよ
うになっている。つまり、伝達トルクが大きい第一従動
ギヤ11においては、噛合部11aの径寸法を大きく確
保し、噛合部11aに作用する噛合負荷を軽減するよう
になっている。
Of the meshing portions 11a and 12b, the meshing portion 11a formed on the first driven gear 11 is formed in the shape of an internal gear having a diameter larger than that of the spline collar 15.
An external gear-shaped selective meshing portion 16b formed at the front end of the selective meshing gear 16 can be selectively meshed. That is, in the first driven gear 11 having a large transmission torque, a large diameter dimension of the meshing portion 11a is ensured and the meshing load acting on the meshing portion 11a is reduced.

【0011】一方、第二従動ギヤ12に形成される噛合
部12aは、スプラインカラー15の外歯スプラインに
連続すべく、略同一断面の外歯スプライン形状に形成さ
れており、選択噛合ギヤ16の内歯スプライン後端部を
選択的に噛合させることができるようになっている。即
ち、伝達トルクが小さい第二従動ギヤ12においては、
噛合部12aの径寸法を小さくし、第一および第二従動
ギヤ11、12に形成される噛合部11a、12aの噛
合負荷を可及的に均一化するようになっている。尚、1
6cは選択噛合ギヤ16に形成されるフォーク嵌合溝で
ある。
On the other hand, the meshing portion 12a formed on the second driven gear 12 is formed in an external tooth spline shape having substantially the same cross section so as to be continuous with the external tooth spline of the spline collar 15, and the meshing portion 12a of the selective meshing gear 16 is formed. The rear end of the internal spline can be selectively meshed. That is, in the second driven gear 12 having a small transmission torque,
The diameter of the meshing portion 12a is reduced so that the meshing loads of the meshing portions 11a and 12a formed on the first and second driven gears 11 and 12 are made as uniform as possible. In addition, 1
6c is a fork fitting groove formed in the selective meshing gear 16.

【0012】叙述の如く構成されたものにおいて、選択
噛合ギヤ16を図1に示すAの位置に操作すると、選択
噛合ギヤ16の選択噛合部16bが第一従動ギヤ11の
噛合部11aに噛合し、この状態では、第一駆動ギヤ
8、第一従動ギヤ11、選択噛合ギヤ16およびスプラ
インカラー15を経由した低速回転がPTO軸3に伝動
されることになる。また、選択噛合ギヤ16をBの位置
に操作すると、選択噛合ギヤ16は何れのギヤにも噛合
せず、この状態ではPTO軸3への動力伝動が断たれる
ことになる。また、選択噛合ギヤ16をCの位置に操作
すると、選択噛合ギヤ16の外歯ギヤ部16aが第三駆
動ギヤ10に直接噛合し、この状態では、第三駆動ギヤ
10、選択噛合ギヤ16およびスプラインカラー15を
経由した中速回転がPTO軸3に伝動されることにな
る。また、選択噛合ギヤ16をDの位置に操作すると、
選択噛合ギヤ16は何れのギヤにも噛合せず、この状態
ではPTO軸3への動力伝動が断たれることになる。ま
た、選択噛合ギヤ16をEの位置に操作すると、選択噛
合ギヤ16の内歯スプライン後端部が第二従動ギヤ12
の噛合部12aに噛合し、この状態では、第二駆動ギヤ
9、第二従動ギヤ12、選択噛合ギヤ16およびスプラ
インカラー15を経由した高速回転がPTO軸3に伝動
されることになる。
In the structure configured as described above, when the selective mesh gear 16 is operated to the position A shown in FIG. 1, the selective mesh portion 16b of the selective mesh gear 16 meshes with the mesh portion 11a of the first driven gear 11. In this state, the low speed rotation is transmitted to the PTO shaft 3 via the first drive gear 8, the first driven gear 11, the selective meshing gear 16 and the spline collar 15. When the selective meshing gear 16 is operated to the position B, the selective meshing gear 16 does not mesh with any gear, and in this state, the power transmission to the PTO shaft 3 is cut off. When the selective meshing gear 16 is operated to the position C, the external tooth gear portion 16a of the selective meshing gear 16 directly meshes with the third drive gear 10, and in this state, the third drive gear 10, the selective meshing gear 16 and Medium-speed rotation via the spline collar 15 is transmitted to the PTO shaft 3. When the selective meshing gear 16 is operated to the D position,
The selective mesh gear 16 does not mesh with any gear, and in this state, the power transmission to the PTO shaft 3 is cut off. When the selective meshing gear 16 is operated to the position E, the rear end portion of the internal gear spline of the selective meshing gear 16 is moved to the second driven gear 12
In this state, the high speed rotation is transmitted to the PTO shaft 3 via the second drive gear 9, the second driven gear 12, the selective mesh gear 16 and the spline collar 15.

【0013】この様に、上記のものでは、伝達トルクが
相違する第一および第二従動ギヤ11、12に、それぞ
れ選択噛合ギヤ16が選択的に噛合する噛合部11a、
12aを形成しているが、伝達トルクが大きい第一従動
ギヤ11においては、大径な内歯ギヤ形状の噛合部11
aを形成する一方、伝達トルクが小さい第二従動ギヤ1
2においては、小径な外歯スプライン形状の噛合部12
aを形成したため、各噛合部11a、12aに作用する
噛合負荷が可及的に均一化されることになる。つまり、
各従動ギヤ11、12の強度を同様に設定することが可
能になるため、製造工程の簡略化を計ることができる。
As described above, in the above, the meshing portions 11a, in which the selective meshing gear 16 selectively meshes with the first and second driven gears 11, 12 having different transmission torques, respectively.
12a is formed, but in the first driven gear 11 having a large transmission torque, the meshing portion 11 having a large diameter internal gear is formed.
The second driven gear 1 that forms a and has a small transmission torque
2, the outer diameter spline-shaped meshing portion 12 having a small diameter is used.
Since a is formed, the meshing loads acting on the meshing portions 11a and 12a are made as uniform as possible. That is,
Since the strengths of the driven gears 11 and 12 can be similarly set, the manufacturing process can be simplified.

【0014】しかも、噛合負荷に応じて各噛合部11
a、12aの噛合代を相違させる必要がないため、変速
操作ストロークを略同一にして変速時の操作性も向上さ
せることができる。
In addition, each meshing portion 11 depends on the meshing load.
Since it is not necessary to make the meshing allowances of a and 12a different, it is possible to improve the operability during the shift by making the shift operation strokes substantially the same.

【0015】尚、本発明は、前記実施の形態に限定され
るものではなく、図2に示すように構成することもでき
る。即ち、第二の実施の形態においては、選択噛合ギヤ
16を、外歯ギヤ部16aを中心として前後対称形状に
形成しており、このため、選択噛合ギヤ16の後端部に
は余分な選択噛合部16aが存在することになるが、こ
のものでは、選択噛合ギヤ16の前後バランスが均一化
されるため、選択噛合ギヤ16の倒れを防止することが
できる許りでなく、選択噛合ギヤ16の組付け方向を間
違えるような不都合も解消することができ、また、選択
噛合部16b(もしくは内歯スプラインの後端部)に摩
耗、欠損等が生じた場合に、組付け方向を反転させるだ
けで応急的な修理ができるという利点がある。
The present invention is not limited to the above-mentioned embodiment, but may be constructed as shown in FIG. That is, in the second embodiment, the selective meshing gear 16 is formed in a symmetrical shape in the front-rear direction about the external gear section 16a. Although the meshing portion 16a is present, in this case, since the front-rear balance of the selective meshing gear 16 is made uniform, it is not possible to prevent the selective meshing gear 16 from falling, and the selective meshing gear 16 is prevented. It is possible to eliminate the inconvenience that the assembly direction is mistaken, and when the selective meshing portion 16b (or the rear end portion of the internal tooth spline) is worn or defective, the assembly direction is simply reversed. There is an advantage that you can repair it temporarily.

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

【図1】トランスミッションケースの後部断面図であ
る。
FIG. 1 is a rear cross-sectional view of a transmission case.

【図2】他例を示す同上断面図である。FIG. 2 is a sectional view of the same as another example.

【符号の説明】[Explanation of symbols]

1 トランスミッションケース 2 駆動側変速軸 3 PTO軸 8 第一駆動ギヤ 9 第二駆動ギヤ 10 第三駆動ギヤ 11 第一従動ギヤ 11a 噛合部 12 第二従動ギヤ 12a 噛合部 15 スプラインカラー 16 選択噛合ギヤ 16a 外歯ギヤ部 16b 選択噛合部 DESCRIPTION OF SYMBOLS 1 Transmission case 2 Drive side speed-change shaft 3 PTO shaft 8 1st drive gear 9 2nd drive gear 10 3rd drive gear 11 1st driven gear 11a meshing part 12 2nd driven gear 12a meshing part 15 spline collar 16 selective meshing gear 16a External gear 16b Selective meshing part

───────────────────────────────────────────────────── フロントページの続き (72)発明者 石川 昌範 島根県八束郡東出雲町大字揖屋町667番地 1 三菱農機株式会社内 (72)発明者 田中 茂郎 島根県八束郡東出雲町大字揖屋町667番地 1 三菱農機株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masanori Ishikawa 667 Izaiyacho, Higashi Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. Address 1 Within Mitsubishi Agricultural Machinery Co., Ltd.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 従動側変速軸に遊転自在に設けられる第
一および第二従動ギヤを、駆動側変速軸に一体的に設け
られる第一および第二駆動ギヤにそれぞれ常時噛合させ
ると共に、前記第一、第二従動ギヤ間に、従動側変速軸
と一体的に回転するスプラインカラーを配置し、さらに
スプラインカラーには、第一および第二従動ギヤにそれ
ぞれ形成される噛合部と、駆動側変速軸に一体的に設け
られる第三駆動ギヤとに選択的に噛合可能な選択噛合ギ
ヤをスプライン嵌合してなるPTO変速装置において、
前記従動ギヤのうち、伝達トルクが大きい側の従動ギヤ
には、スプラインカラーよりも大径な内歯ギヤ形状の噛
合部を形成し、選択噛合ギヤに形成される外歯ギヤ形状
の選択噛合部を選択的に噛合させる一方、伝達トルクが
小さい側の従動ギヤには、スプラインカラーに連続する
外歯スプライン形状の噛合部を形成し、選択噛合ギヤの
内歯スプラインを選択的に噛合させるPTO変速装置。
1. A first and a second driven gears, which are rotatably provided on a driven-side speed change shaft, are always meshed with first and second drive gears, which are integrally provided on the driven-side speed change shaft, respectively. A spline collar that rotates integrally with the driven speed change shaft is disposed between the first and second driven gears, and the spline collar further includes a meshing portion formed on each of the first and second driven gears and a drive side. In a PTO transmission in which a selective meshing gear that can selectively mesh with a third drive gear that is integrally provided on a speed change shaft is spline-fitted,
Among the driven gears, a driven gear on the side having a larger transmission torque is formed with an internal gear-shaped meshing portion having a larger diameter than the spline collar, and an external gear-shaped selective meshing portion formed in the selective meshing gear. While the driven gear on the side where the transmission torque is small is formed with an externally toothed spline-shaped meshing portion that is continuous with the spline collar, the PTO gear shift that selectively meshes the internally toothed spline of the selectively meshed gear. apparatus.
【請求項2】 請求項1の選択噛合ギヤを、第三駆動ギ
ヤに選択的に噛合する外歯ギヤ部を中心として前後対称
形状に形成したPTO変速装置。
2. A PTO transmission in which the selective meshing gear according to claim 1 is formed in a front-rear symmetrical shape around an external gear part that selectively meshes with a third drive gear.
JP29337595A 1995-10-17 1995-10-17 PTO transmission Expired - Fee Related JP3257937B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29337595A JP3257937B2 (en) 1995-10-17 1995-10-17 PTO transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29337595A JP3257937B2 (en) 1995-10-17 1995-10-17 PTO transmission

Publications (2)

Publication Number Publication Date
JPH09109711A true JPH09109711A (en) 1997-04-28
JP3257937B2 JP3257937B2 (en) 2002-02-18

Family

ID=17793969

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29337595A Expired - Fee Related JP3257937B2 (en) 1995-10-17 1995-10-17 PTO transmission

Country Status (1)

Country Link
JP (1) JP3257937B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101936809B (en) * 2010-09-30 2012-01-25 无锡英特帕普威孚液压有限责任公司 Power takeoff testing device

Also Published As

Publication number Publication date
JP3257937B2 (en) 2002-02-18

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