JPH0118918Y2 - - Google Patents
Info
- Publication number
- JPH0118918Y2 JPH0118918Y2 JP1984018220U JP1822084U JPH0118918Y2 JP H0118918 Y2 JPH0118918 Y2 JP H0118918Y2 JP 1984018220 U JP1984018220 U JP 1984018220U JP 1822084 U JP1822084 U JP 1822084U JP H0118918 Y2 JPH0118918 Y2 JP H0118918Y2
- Authority
- JP
- Japan
- Prior art keywords
- shifter
- transmission shaft
- shaft
- bevel
- bevel gears
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 51
- 210000000078 claw Anatomy 0.000 description 5
- 238000000605 extraction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Soil Working Implements (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Gear-Shifting Mechanisms (AREA)
Description
【考案の詳細な説明】
本考案は、ロータリ装置の正逆転切換装置に関
し、一対のベベルギヤーの傾きを防止すると共
に、伝動軸軸心方向の全体の寸法を小さくするこ
とを目的とする。[Detailed Description of the Invention] The present invention relates to a forward/reverse switching device for a rotary device, and aims to prevent a pair of bevel gears from tilting and to reduce the overall dimension in the axial direction of a transmission shaft.
サイドドライブ式、センタードライブ式等のロ
ータリ装置において、ダウンカツトからアツプカ
ツトに変更する場合、爪軸の回転方向を切換える
必要がある。そこで、例えば、サイドドライブ式
では、ロータリ機枠の上部中央の入力用伝動ケー
ス内に、入力軸のベベルピニオンと、該ベベルピ
ニオンに対して両側から咬合しかつ伝動軸上に遊
転自在に套嵌された一対のベベルギヤーと、該一
対のベベルギヤーを伝動軸に選択結合するシフタ
とを組込み、該シフタの選択操作により、伝動軸
を介して爪軸を正逆転するようにしたものがあ
る。しかし、これは一対のベベルギヤーを伝動軸
により回転自在に支持し、この一対のベベルギヤ
ーの対向端面側に係合部を形成すると共に、伝動
軸上に軸心方向に摺動自在に套嵌したシフターの
両端部に係合部を形成し、これら端部の係合部同
士を係脱させるようにしていたので、一対のベベ
ルギヤー間の間隔が大になり、伝動ケースが大型
化する欠点がある。またシフタとベベルギヤーと
の端部同士を係合させるため、動力伝達時にベベ
ルギヤーが傾きやすくなる問題もある。 In side drive type, center drive type, etc. rotary devices, when changing from down cut to up cut, it is necessary to switch the rotation direction of the pawl shaft. Therefore, for example, in the side drive type, the bevel pinion of the input shaft is placed in the input transmission case at the center of the upper part of the rotary machine frame, and the bevel pinion is engaged with the bevel pinion from both sides and is freely rotatable on the transmission shaft. There is a device that incorporates a pair of fitted bevel gears and a shifter that selectively connects the pair of bevel gears to a transmission shaft, and by selectively operating the shifter, the pawl shaft can be rotated forward or backward through the transmission shaft. However, in this method, a pair of bevel gears are rotatably supported by a transmission shaft, an engaging part is formed on the opposing end surfaces of the pair of bevel gears, and a shifter is fitted onto the transmission shaft so as to be slidable in the axial direction. Since engaging portions are formed at both ends of the gear and the engaging portions at these ends are engaged with and disengaged from each other, the gap between the pair of bevel gears increases, resulting in an increase in the size of the transmission case. Furthermore, since the end portions of the shifter and the bevel gear are engaged with each other, there is also the problem that the bevel gear tends to tilt during power transmission.
本考案は、このような従来の問題点を解消する
ようにしたものであつて、その特徴とするところ
は、中央上部に位置する伝動ケース内に、入力軸
のベベルピニオンと、該ベベルピニオンに対して
両側から咬合しかつ伝動軸上に遊転自在に套嵌さ
れた一対のベベルギヤーと、該一対のベベルギヤ
ーを伝動軸に選択結合するシフタとを備え、伝動
軸を介して爪軸を正逆転駆動するようにしたロー
タリ装置の正逆転切換装置において、一対のベベ
ルギヤー11,12を伝動軸14に対してシフタ
摺動空間をあけて套嵌すると共に、該一対のベベ
ルギヤー11,12に軸心方向外側方に突出する
ボス部21,22を設け、このボス部21,22
の内周面のシフタ摺動空間側に咬合部23,24
を設け、このボス部21,22の外周に、該ベベ
ルギヤー11,12を回転自在に保持する軸受2
5,26を設け、外周の咬合部31,32がシフ
タ摺動空間内で一対のベベルギヤー11,12の
咬合部23,24に対して内周側から選択的に嵌
脱しかつ嵌合時に軸受25,26と軸心方向にラ
ツプするように伝動軸14上にシフタ15を軸心
方向に摺動自在にスプライン嵌合した点にある。 The present invention is designed to solve these conventional problems, and its characteristics are that the bevel pinion of the input shaft and the bevel pinion are located in the transmission case located at the upper center. A pair of bevel gears that engage from both sides and are fitted on the transmission shaft so as to freely rotate, and a shifter that selectively connects the pair of bevel gears to the transmission shaft, and the pawl shaft is rotated in the forward and reverse directions via the transmission shaft. In a forward/reverse switching device for a rotary device, a pair of bevel gears 11 and 12 are fitted onto a transmission shaft 14 with a shifter sliding space, and the pair of bevel gears 11 and 12 are fitted in an axial direction. Boss parts 21 and 22 that protrude outward are provided, and the boss parts 21 and 22
Engagement parts 23, 24 are provided on the shifter sliding space side of the inner peripheral surface of the
A bearing 2 is provided on the outer periphery of the boss portions 21 and 22 to rotatably hold the bevel gears 11 and 12.
5 and 26 are provided, and the outer circumferential engagement parts 31 and 32 selectively engage and disengage the engagement parts 23 and 24 of the pair of bevel gears 11 and 12 from the inner circumferential side within the shifter sliding space, and the bearing 25 when engaged. , 26 in the axial direction, the shifter 15 is spline-fitted onto the transmission shaft 14 so as to be slidable in the axial direction.
以下、図示の実施例について本考案を詳述する
と、第1図はサイドドライブ式ロータリ装置の概
略構造を示し、同図において、1はロータリ機枠
で、入力用ギヤーケース2、左右一対のサポート
アーム3、チエーンケース4、サイドフレーム5
等から成る。6は爪軸で、多数の耕耘爪7を有
し、チエーンケース4とサイドフレーム5との下
端部間に回転自在に支持されている。8はロータ
リカバーである。 Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. Fig. 1 shows a schematic structure of a side drive type rotary device. In the figure, 1 is a rotary machine frame, an input gear case 2, and a pair of left and right supports. Arm 3, chain case 4, side frame 5
Consists of etc. A claw shaft 6 has a large number of tilling claws 7, and is rotatably supported between the lower ends of the chain case 4 and the side frame 5. 8 is a rotary cover.
ギヤーケース2はロータリ機枠1の上部中央に
配置されており、このギヤーケース2内には第2
図及び第3図に示すように正逆転切換用のベベル
ギヤー機構9が組込まれている。即ち、ベベルギ
ヤー機構9は駆動ベベルピニオン10と、該駆動
ベベルピニオン10に対して左右両側から咬合す
る第1及び第2ベベルギヤー11,12と、駆動
ベベルピニオン10と反対側で両者をベベルギヤ
ー11,12に咬合する中継ベベルピニオン13
と、ベベルギヤー11,12を伝動軸14に択一
的に選択結合するシフタ15とを備えて成る。伝
動軸14はロータリ機枠1のチエーンケース4側
のサポートアーム3内に、ギヤーケース2とチエ
ーンケース4とに跨つて軸架されており、チエー
ンケース4内のチエーン伝動機構を介して爪軸6
に連動連結されている。駆動ベベルピニオン10
は入力軸16の内端部に一体に形成され、また入
力軸16は軸受17,18及び軸受ケース19に
より前後方向に支持されると共に、軸受ケース1
9より前方に突出せしめられており、その前端部
にトラクタのPTO軸に連動する自在接手軸が連
結可能である。ベベルギヤー11,12は軸心方
向外側方に突出するボス部21,22の内周面に
雌形スプライン状の咬合部23,24を夫々有
し、このベベルギヤー111,12はボス部2
1,22の外周に套嵌された軸受25,26を介
して、支持体27に一体形成された左右一対の軸
受保持部28,29により回転自在に支持され、
また伝動軸14に対してはシフタ摺動空間をおい
て相対回転自在に套嵌されている。シフタ15は
軸心方向の中央部に周溝30を有すると共に、そ
の両側に雄型スプライン状の咬合部31,32を
有し、この各咬合部31,32がベベルギヤー1
1,12の咬合部23,24に対してシフタ摺動
空間内で内周から選択的に嵌脱しかつ嵌合時に軸
受25,26と軸心方向にラツプするように伝動
軸14に摺動自在にスプライン嵌合されている。
支持体27は一対の軸受保持部28,29の他に
取付フランジ部33を一体に有し、その取付フラ
ンジ部33を介してギヤーケース2の前面開口部
を塞ぐようにボルト34によつて取付けられ、ま
たこの取付フランジ部33の前面に軸受ケース1
9がボルト35によつて取付けられている。中継
ベベルピニオン13はベベルピニオン軸36に一
体に形成されている。ベベルピニオン軸36はギ
ヤーケース2の後部側に装着された軸受ケース3
7に軸受38を介して回転自在に保持されてお
り、またこのベベルピニオン軸36は軸受ケース
37及び軸受蓋39より後方に突出する動力取出
軸40が螺合締結されている。中継ベベルピニオ
ン36と伝動軸14との間には操作軸41が上下
方向に配置され、この操作軸41はギヤーケース
2の上下に装着された軸受部42,43により軸
心廻りに回動自在に支持されると共に、上側の軸
受部42より上方に突出せしめられている。操作
軸41にはギヤーケース2内部で一対の係合体4
4.45が夫々別個に取付けられると共に、ギヤ
ーケース2外の上端に操作板46が固定されてい
る。係合体44,45は丸棒材をL字状に折曲げ
たものであつて、その折曲げ端部がシフタ15の
周溝30に対して上下から係合するように、ボス
部47,48及びロールピン49,50により操
作軸41に固定されている。ボス47,48は中
継ベベルピニオン13及びシフタ15と干渉しな
いように上下方向に離間して位置せしめられてお
り、中継ベベルピニオン13とシフタ15との間
は小径の操作軸41を通し得るだけの必要最小限
の間隔である。操作板46には第4図に示すよう
に2個の通孔51,52が形成され、この通孔5
1,52の何れか一方にボルト53を挿通してギ
ヤーケース2側の雌ネジ体54に螺合することに
より、シフタ15側をベベルギヤー11,12の
一方に咬合させた状態で固定可能である。 The gear case 2 is arranged in the upper center of the rotary machine frame 1, and inside this gear case 2 there is a second
As shown in the drawings and FIG. 3, a bevel gear mechanism 9 for forward/reverse switching is incorporated. That is, the bevel gear mechanism 9 includes a drive bevel pinion 10, first and second bevel gears 11 and 12 that engage with the drive bevel pinion 10 from both left and right sides, and bevel gears 11 and 12 that engage both on the opposite side of the drive bevel pinion 10. Relay bevel pinion 13 that engages with
and a shifter 15 for selectively coupling the bevel gears 11 and 12 to the transmission shaft 14. The transmission shaft 14 is mounted in the support arm 3 on the chain case 4 side of the rotary machine frame 1, spanning the gear case 2 and the chain case 4, and is connected to the pawl shaft via the chain transmission mechanism in the chain case 4. 6
is linked to. Drive bevel pinion 10
is integrally formed at the inner end of the input shaft 16, and the input shaft 16 is supported in the front-rear direction by bearings 17, 18 and a bearing case 19, and the bearing case 1
9, and a universal joint shaft that interlocks with the PTO shaft of the tractor can be connected to its front end. The bevel gears 11, 12 have boss portions 21, 22 that protrude outward in the axial direction, and have female spline-shaped engaging portions 23, 24, respectively, on the inner peripheral surfaces of the boss portions 21, 22.
It is rotatably supported by a pair of left and right bearing holding parts 28 and 29 integrally formed on the support body 27 via bearings 25 and 26 fitted around the outer peripheries of the parts 1 and 22,
Further, it is fitted around the transmission shaft 14 so as to be rotatable relative to the shifter sliding space. The shifter 15 has a circumferential groove 30 in the central part in the axial direction, and has male spline-shaped engagement parts 31 and 32 on both sides of the circumferential groove 30.
1 and 12 from the inner periphery within the shifter sliding space, and is slidable on the transmission shaft 14 so as to wrap in the axial direction with the bearings 25 and 26 when mated. is fitted with a spline.
The support body 27 integrally has a mounting flange part 33 in addition to the pair of bearing holding parts 28 and 29, and is mounted by bolts 34 so as to close the front opening of the gear case 2 via the mounting flange part 33. The bearing case 1 is mounted on the front surface of this mounting flange portion 33.
9 is attached by bolts 35. The relay bevel pinion 13 is integrally formed with the bevel pinion shaft 36. The bevel pinion shaft 36 is a bearing case 3 mounted on the rear side of the gear case 2.
7 via a bearing 38, and a power take-off shaft 40 protruding rearward from a bearing case 37 and a bearing cover 39 is screwed to this bevel pinion shaft 36. An operating shaft 41 is disposed vertically between the relay bevel pinion 36 and the transmission shaft 14, and the operating shaft 41 is rotatable around its axis by bearings 42 and 43 mounted on the upper and lower sides of the gear case 2. The upper bearing part 42 is supported by the upper bearing part 42 and is projected upward from the upper bearing part 42 . A pair of engaging bodies 4 are attached to the operating shaft 41 inside the gear case 2.
4.45 are attached separately, and an operation plate 46 is fixed to the upper end of the outside of the gear case 2. The engaging bodies 44 and 45 are round bars bent into an L shape, and the boss parts 47 and 48 are arranged so that the bent ends engage the circumferential groove 30 of the shifter 15 from above and below. and is fixed to the operating shaft 41 by roll pins 49 and 50. The bosses 47 and 48 are spaced apart in the vertical direction so as not to interfere with the relay bevel pinion 13 and shifter 15, and the space between the relay bevel pinion 13 and shifter 15 is large enough to allow the small diameter operating shaft 41 to pass through. This is the minimum necessary interval. As shown in FIG. 4, two through holes 51 and 52 are formed in the operation plate 46.
By inserting the bolt 53 into either one of the bevel gears 11 and 52 and screwing it into the female screw body 54 on the gear case 2 side, the shifter 15 side can be fixed in a state where it is engaged with one of the bevel gears 11 and 12. .
上記構成において、通常のダウンカツト耕耘時
には、第2図に示すようにシフタ15を第2ベベ
ルギヤー12側に内嵌し咬合させ、入力軸16か
らの動力を第2ベベルギヤー12及びシフタ15
を介して伝動軸14に伝達し、伝動軸14を正転
方向(a矢示)に回転させる。この場合、入力軸
16からの動力は、その駆動ベベルピニオン10
から第2ベベルギヤー12、シフタ15を経由す
る伝達経路と、駆動ベベルピニオン10から第1
ベベルギヤー11、中継ベベルピニオン13、第
2ベベルギヤー12、シフタ15を経由する伝達
経路との2経路を経て伝動軸14へと伝達される
ので、1経路のみを経て動力を伝達する場合に比
較して伝達トルクが大きくなり、大馬力の動力伝
達が可能である。また各ベベルギヤー11,12
が互いに逆方向に回転するので、動力伝達上のバ
ランスが良く、振動の低減を図ることができる。
なお伝動軸14が正転方向に回転すれば、爪軸6
が第1図のb矢示方向に回転し、耕耘爪7によつ
て圃場をダウンカツトすることになる。 In the above configuration, during normal downcut cultivation, the shifter 15 is fitted inside and engaged with the second bevel gear 12 as shown in FIG.
is transmitted to the power transmission shaft 14 through the transmission shaft 14, and the power transmission shaft 14 is rotated in the normal rotation direction (arrow a). In this case, the power from the input shaft 16 is transferred to its drive bevel pinion 10.
A transmission path passes from the drive bevel pinion 10 to the second bevel gear 12 and the shifter 15, and from the drive bevel pinion 10 to the first
The power is transmitted to the power transmission shaft 14 through two paths, the transmission path passing through the bevel gear 11, the relay bevel pinion 13, the second bevel gear 12, and the shifter 15, compared to the case where power is transmitted through only one path. Transmission torque is increased, and power transmission of large horsepower is possible. Also, each bevel gear 11, 12
Since they rotate in opposite directions, the power transmission is well balanced and vibrations can be reduced.
Note that if the transmission shaft 14 rotates in the forward rotation direction, the pawl shaft 6
rotates in the direction indicated by arrow b in FIG. 1, and the tilling claws 7 downcut the field.
硬い圃場をアツプカツト耕耘する場合には、耕
耘爪7を反対方向に向けて装着すると共に、シフ
タ15を第1ベベルギヤー11側に内嵌し咬合さ
せ、この第1ベベルギヤー11を伝動軸14に結
合する。この場合、操作板46をc矢示方向に回
動させると、操作軸41、係合体44,45を介
してシフタ15が第1ベベルギヤー10側に摺動
し、この第1ベベルギヤー10を伝動軸14に結
合するので、そこでボルト53を通孔51に挿入
し雌ネジ体54に螺合して操作板46を固定す
る。すると入力軸16からの動力は、駆動ベベル
ピニオン10、第1ベベルギヤー11、シフタ1
5を経て伝動軸14へと伝達されると共に、駆動
ベベルピニオン10、第2ベベルギヤー12、中
継ベベルピニオン13、第1ベベルギヤー11、
シフタ15を経て伝動軸14へと伝達されるの
で、伝動軸14、爪軸6が前述のダウンカツト時
とは逆方向に回転し、アツプカツト法で耕耘する
ことができる。 When cultivating a hard field, the tiller claws 7 are attached facing in the opposite direction, the shifter 15 is fitted inside the first bevel gear 11 and engaged, and the first bevel gear 11 is coupled to the transmission shaft 14. . In this case, when the operation plate 46 is rotated in the direction of the arrow c, the shifter 15 slides toward the first bevel gear 10 via the operation shaft 41 and the engaging bodies 44 and 45, and the first bevel gear 10 is connected to the transmission shaft. 14, the bolt 53 is inserted into the through hole 51 and screwed into the female screw body 54 to fix the operation plate 46. Then, the power from the input shaft 16 is transmitted to the drive bevel pinion 10, the first bevel gear 11, and the shifter 1.
5 to the transmission shaft 14, and the drive bevel pinion 10, second bevel gear 12, relay bevel pinion 13, first bevel gear 11,
Since the power is transmitted to the power transmission shaft 14 via the shifter 15, the power transmission shaft 14 and the pawl shaft 6 rotate in the opposite direction to that during downcutting, allowing for upcutting.
ダウンカツト、アツプカツトの何れの時にも、
シフタ15はベベルギヤー11,12のボス部2
1,22内に内嵌して内周側に咬合しており、ま
た、そのボス部21,22の外周を軸受25,2
6で保持しかつシフタ15の咬合部31,32と
軸受25,26とが軸心方向にラツプしているの
で、動力伝達時におけるベベルギヤー11,12
の傾きを防止でき、耐久性が向上する。しかもシ
フタ15がベベルギヤー11,12の内側に嵌脱
すべく内嵌するようにしているので、軸心方向の
端面側で係脱させるものに比較してベベルギヤー
11,12間の間隔を小さくでき、従つて、入力
軸16のベベルピニオン10とベベルギヤー1
1,12とのギヤー比を大きくして減速比を大に
できると共に、装置全体の軸心方向の寸法をコン
パクトにできる。 In both down cut and up cut,
The shifter 15 is the boss portion 2 of the bevel gears 11 and 12.
The outer periphery of the boss portions 21, 22 is fitted inside the bearings 25, 22 and engages with the inner circumferential side.
6 and the engagement parts 31, 32 of the shifter 15 and the bearings 25, 26 overlap in the axial direction, so that the bevel gears 11, 12 are held at the time of power transmission.
This prevents tilting and improves durability. Moreover, since the shifter 15 is fitted inside the bevel gears 11 and 12 to be fitted and removed, the gap between the bevel gears 11 and 12 can be made smaller compared to a case where the shifter 15 is fitted and removed from the end face side in the axial direction. Therefore, the bevel pinion 10 of the input shaft 16 and the bevel gear 1
The reduction ratio can be increased by increasing the gear ratio between 1 and 12, and the size of the entire device in the axial direction can be made compact.
ダウンカツト、アツプカツトの何れの際にも、
中継ベベルピニオン13は常に同一方向に回転し
ており、耕耘法の如何に拘らず動力取出軸40よ
り動力を取出して、耕耘作業と同時に他の作業機
を駆動することもできる。 In both down cut and up cut,
The relay bevel pinion 13 always rotates in the same direction, and regardless of the tilling method, power can be extracted from the power output shaft 40 to drive other working machines at the same time as the tilling work.
なお上記実施例では、中継ベベルピニオン13
とシフタ15との間に操作軸41を配置したが、
駆動ベベルピニオン10とシフタ15との間に設
けても同様に実施でき、また動力の取出しを必要
としない場合には、動力取出軸40を取外して軸
受蓋39にキヤツプを装着しても良いし、軸受蓋
39自体を盲蓋状に構成し、ベベルピニオン軸3
6の外端を完全に閉鎖しても良い。また中継ベベ
ルピニオン13は固定の軸に遊転自在に套嵌する
ことも可能である。センタードライブ式のロータ
リ装置においても採用可能である。 Note that in the above embodiment, the relay bevel pinion 13
Although the operating shaft 41 is arranged between the shifter 15 and the shifter 15,
The same effect can be achieved by providing it between the drive bevel pinion 10 and the shifter 15, or if the power extraction shaft 40 is not required, the power extraction shaft 40 may be removed and a cap may be attached to the bearing cover 39. , the bearing cover 39 itself is configured in a blind cover shape, and the bevel pinion shaft 3
The outer end of 6 may be completely closed. Further, the relay bevel pinion 13 can be fitted around a fixed shaft so as to be freely rotatable. It can also be adopted in a center drive type rotary device.
本考案では、一対のベベルギヤー11,12を
伝動軸14に対してシフタ摺動空間をあけて套嵌
すると共に、該一対のベベルギヤー11,12に
軸心方向外側方に突出するボス部21,22を設
け、このボス部21,22の内周面のシフタ摺動
空間側に咬合部23,24を設け、このボス部2
1,22の外周に、該ベベルギヤー11,12を
回転自在に保持する軸受25,26を設け、外周
の咬合部31,32がシフタ摺動空間内で一対の
ベベルギヤー11,12の咬合部23,24に対
して内周側から選択的に嵌脱しかつ嵌合時に軸受
25,26と軸心方向にラツプするように伝動軸
14上にシフタ15を軸心方向に摺動自在にスプ
ライン嵌合しているので、動力伝達時におけるベ
ベルギヤー11,12の傾きを防止でき、耐久性
が向上する。またベベルギヤー11,12と伝動
軸14との間にシフタ摺動空間があり、そのシフ
タ摺動空間内でシフタ15の外周の咬合部31,
32が各ベベルギヤー11,12の咬合部23,
24に対して内周から嵌脱自在であるため、軸心
方向の端面側でシフタの係合部が各ベベルギヤー
に選択的に係脱するものに比較して、一対のベベ
ルギヤー11,12間の軸心方向の間隔を小さく
でき、従つて、ベベルピニオン10がそれだけ小
さくなるので、ベベルピニオン10とベベルギヤ
ー11,12とのギヤー比を大きくして減速比を
大きくできると共に、装置全体の小型化が可能で
ある。 In the present invention, a pair of bevel gears 11, 12 are fitted onto the transmission shaft 14 with a shifter sliding space, and boss portions 21, 22 are provided on the pair of bevel gears 11, 12 that protrude outward in the axial direction. The boss portions 21 and 22 have interlocking portions 23 and 24 on the inner circumferential surface of the shifter sliding space.
Bearings 25, 26 for rotatably holding the bevel gears 11, 12 are provided on the outer peripheries of the pair of bevel gears 11, 12, and the engaging portions 31, 32 on the outer peripheries are connected to the engaging portions 23, 23 of the pair of bevel gears 11, 12 within the shifter sliding space. The shifter 15 is spline-fitted onto the transmission shaft 14 so as to be slidable in the axial direction so that the shifter 15 can be selectively fitted into and removed from the inner circumferential side of the transmission shaft 14, and when fitted, it can wrap around the bearings 25 and 26 in the axial direction. Therefore, it is possible to prevent the bevel gears 11 and 12 from tilting during power transmission, and durability is improved. Further, there is a shifter sliding space between the bevel gears 11, 12 and the transmission shaft 14, and within the shifter sliding space, the engagement portion 31 on the outer periphery of the shifter 15,
32 is the engagement part 23 of each bevel gear 11, 12,
24 from the inner periphery, the engagement portion of the shifter selectively engages and disengages from each bevel gear on the end face side in the axial direction. Since the distance in the axial direction can be reduced and the bevel pinion 10 can be made smaller accordingly, the gear ratio between the bevel pinion 10 and the bevel gears 11 and 12 can be increased to increase the reduction ratio, and the entire device can be made smaller. It is possible.
図面は本考案の一実施例を例示するものであつ
て、第1図は全体構成を示す概略背面図、第2図
は要部の断面平面図、第3図は第2図の−矢
視断面図、第4図は切換操作部の平面図である。
1……ロータリ機枠、2……ギヤーケース(伝
動ケース)、6……爪軸、9……ベベルギヤー機
構、10……駆動ベベルピニオン、11,12…
…ベベルギヤー、13……中継ベベルピニオン、
14……伝動軸、15……シフタ、16……入力
軸、27……支持体、41……操作軸、44,4
5……係合体。
The drawings illustrate one embodiment of the present invention, in which Fig. 1 is a schematic rear view showing the overall configuration, Fig. 2 is a cross-sectional plan view of the main part, and Fig. 3 is a view taken in the direction of - arrow in Fig. 2. The sectional view and FIG. 4 are plan views of the switching operation section. DESCRIPTION OF SYMBOLS 1...Rotary machine frame, 2...Gear case (transmission case), 6...Claw shaft, 9...Bevel gear mechanism, 10...Drive bevel pinion, 11, 12...
...Bevel gear, 13...Relay bevel pinion,
14... Transmission shaft, 15... Shifter, 16... Input shaft, 27... Support body, 41... Operation shaft, 44, 4
5... Engagement body.
Claims (1)
ン10と、該ベベルピニオン10に対して両側か
ら咬合しかつ伝動軸14上に遊転自在に套嵌され
た一対のベベルギヤー11,12と、該一対のベ
ベルギヤー11,12を伝動軸14に選択結合す
るシフタ15とを備え、伝動軸14を介して爪軸
6を正逆転駆動するようにしたロータリ装置の正
逆転切換装置において、一対のベベルギヤー1
1,12を伝動軸14に対してシフタ摺動空間を
あけて套嵌すると共に、該一対のベベルギヤー1
1,12に軸心方向外側方に突出するボス部2
1,22を設け、このボス部21,22の内周面
のシフタ摺動空間側に咬合部23,24を設け、
このボス部21,22の外周に、該ベベルギヤー
11,12を回転自在に保持する軸受25,26
を設け、外周の咬合部31,32がシフタ摺動空
間内で一対のベベルギヤー11,12の咬合部2
3,24に対して内周側から選択的に嵌脱しかつ
嵌合時に軸受25,26と軸心方向にラツプする
ように伝動軸14上にシフタ15を軸心方向に摺
動自在にスプライン嵌合したことを特徴とするロ
ータリ装置の正逆転切換装置。 Inside the transmission case 2, there are a bevel pinion 10 of the input shaft 16, a pair of bevel gears 11 and 12 that engage with the bevel pinion 10 from both sides and are fitted on the transmission shaft 14 so as to freely rotate; A forward/reverse switching device for a rotary device is provided with a shifter 15 that selectively connects bevel gears 11 and 12 to a transmission shaft 14, and drives a pawl shaft 6 in the forward and reverse directions via the transmission shaft 14.
1 and 12 are fitted onto the transmission shaft 14 with a shifter sliding space, and the pair of bevel gears 1
A boss portion 2 protruding outward in the axial direction at 1 and 12
1 and 22 are provided, and engaging portions 23 and 24 are provided on the inner circumferential surface of the boss portions 21 and 22 on the shifter sliding space side,
Bearings 25, 26 that rotatably hold the bevel gears 11, 12 are provided on the outer periphery of the boss portions 21, 22.
are provided, and the engaging parts 31 and 32 on the outer periphery are connected to the engaging parts 2 of the pair of bevel gears 11 and 12 within the shifter sliding space.
The shifter 15 is spline-fitted onto the transmission shaft 14 so as to be slidable in the axial direction so that the shifter 15 can be selectively fitted into and removed from the inner circumferential side of the transmission shaft 14 and 3 and 24 from the inner circumferential side, and can wrap in the axial direction with the bearings 25 and 26 when fitted. A forward/reverse switching device for a rotary device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1822084U JPS59146644U (en) | 1984-02-10 | 1984-02-10 | Forward/reverse switching device for rotary equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1822084U JPS59146644U (en) | 1984-02-10 | 1984-02-10 | Forward/reverse switching device for rotary equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59146644U JPS59146644U (en) | 1984-10-01 |
JPH0118918Y2 true JPH0118918Y2 (en) | 1989-06-01 |
Family
ID=30149428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1822084U Granted JPS59146644U (en) | 1984-02-10 | 1984-02-10 | Forward/reverse switching device for rotary equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59146644U (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4331209Y1 (en) * | 1964-04-27 | 1968-12-18 | ||
JPS5519681A (en) * | 1978-07-31 | 1980-02-12 | Suzuki Motor Co Ltd | Speed reducer for outboard engine |
-
1984
- 1984-02-10 JP JP1822084U patent/JPS59146644U/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4331209Y1 (en) * | 1964-04-27 | 1968-12-18 | ||
JPS5519681A (en) * | 1978-07-31 | 1980-02-12 | Suzuki Motor Co Ltd | Speed reducer for outboard engine |
Also Published As
Publication number | Publication date |
---|---|
JPS59146644U (en) | 1984-10-01 |
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