JP2525975Y2 - Extension claw shaft drive structure of center drive tilling device - Google Patents
Extension claw shaft drive structure of center drive tilling deviceInfo
- Publication number
- JP2525975Y2 JP2525975Y2 JP5493990U JP5493990U JP2525975Y2 JP 2525975 Y2 JP2525975 Y2 JP 2525975Y2 JP 5493990 U JP5493990 U JP 5493990U JP 5493990 U JP5493990 U JP 5493990U JP 2525975 Y2 JP2525975 Y2 JP 2525975Y2
- Authority
- JP
- Japan
- Prior art keywords
- claw shaft
- shaft
- drive
- extension
- main
- 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 - Lifetime
Links
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- Soil Working Implements (AREA)
Description
【考案の詳細な説明】 (イ)産業上の利用分野 本考案は、センタードライブ型のロータリ耕耘装置に
おける延長爪軸駆動構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Use The present invention relates to an extended claw shaft drive structure in a center drive type rotary tilling apparatus.
(ロ)従来の技術 従来のセンタードライブ耕耘装置における延長爪軸の
取付及び駆動構造は、第5図と第6図に示しているよう
になっていた。(B) Conventional technology The mounting and driving structure of the extension claw shaft in the conventional center drive tilling apparatus is as shown in FIGS. 5 and 6.
つまり、伝動ケース(101)から左右に延出する主爪
軸(103)の外端部と延長爪軸(104)の内端部とに相対
応するフランジ(107)(108)を設け、それらのフラン
ジ(107)(108)を合接し、両者に穿設されたボルト孔
(109)に挿通するボルト・ナット(110)でもって締結
固定して延長爪軸(104)を主爪軸(103)に取付ける構
造になっていた。That is, flanges (107) and (108) corresponding to the outer end of the main claw shaft (103) and the inner end of the extension claw shaft (104) extending right and left from the transmission case (101) are provided. The flanges (107) and (108) are joined together, and are fastened and fixed with bolts and nuts (110) inserted into bolt holes (109) formed in both of them, and the extension claw shaft (104) is connected to the main claw shaft (103). ).
(ハ)考案が解決しようとする課題 従来構造においては、延長爪軸を取り付けない場合
に、主爪軸(103)に固着されているフランジ(107)が
主爪軸の周外方に突出して回転することになるので、そ
のフランジ(107)に草藁等が巻絡し易く、また、フラ
ンジ(107)が回転しながら未耕起部分を移動するので
早期に摩損されるといった問題があった。(C) Problems to be solved by the invention In the conventional structure, when the extension claw shaft is not attached, the flange (107) fixed to the main claw shaft (103) protrudes outward from the circumference of the main claw shaft and rotates. Therefore, there is a problem that grass straws and the like are easily wrapped around the flange (107), and the flange (107) moves on an untilled portion while rotating, so that the flange (107) is worn out early.
本考案は、従来構造における上記の問題に着目し、そ
の問題を解消することを目的として実施したものであっ
て、延長爪軸を取り付けないで作業する際の草藁等の巻
絡や部材の摩損が少なくなるように改良工夫した延長爪
軸駆動構造を簡潔構造にして提供するものである。The present invention focuses on the above problem in the conventional structure and has been carried out with the object of solving the problem. An extended claw shaft drive structure improved so as to reduce wear is provided in a simple structure.
(ニ)課題を解決するための手段 上記の目的を達成するために、本考案における延長爪
軸駆動構造は、伝動ケースの下端部に支承する伝動軸に
左右一対の主爪軸を嵌着固定し、各々の主爪軸の外端部
に延長爪軸を同芯状に装着可能にしてあるセンタードラ
イブ耕耘装置において、前記主爪軸の外端部外周に、主
爪軸と同じ向きの駆動ピンをその外端面が主爪軸の側端
面から外方に出っ張らないようにして固設するととも
に、その駆動ピンに平行する被動ピンを延長爪軸(4)
の内端部外周に固設して主爪軸の方に突出させて設け、
延長爪軸装着時に被動ピンが爪軸回転方向の前面側に位
置して駆動ピンに重合当接し、その当接部を介して駆動
ピンから被動ピン側に伝達される動力でもって延長爪軸
を主爪軸と共に一体的に回転駆動されるように構成して
いる。(D) Means for Solving the Problems In order to achieve the above object, the extended claw shaft drive structure according to the present invention is configured such that a pair of left and right main claw shafts are fitted and fixed to a transmission shaft supported on a lower end portion of a transmission case. In the center drive tilling device, wherein an extended claw shaft can be attached concentrically to the outer end of each main claw shaft, a drive in the same direction as the main claw shaft is provided around the outer end of the main claw shaft. The pin is fixedly mounted so that the outer end surface does not protrude outward from the side end surface of the main claw shaft, and the driven pin parallel to the drive pin is extended with the extension claw shaft (4).
Is fixed to the outer periphery of the inner end of the
When the extension claw shaft is mounted, the driven pin is located on the front side in the rotation direction of the claw shaft and overlaps and contacts the drive pin, and the extension claw shaft is driven by the power transmitted from the drive pin to the driven pin through the contact portion. It is configured to be driven to rotate integrally with the main claw shaft.
(ホ)考案の作用及び効果 本考案による延長爪軸駆動構造が適用されたセンター
ドライブ耕耘装置にあっては、主爪軸の外端部に延長爪
軸を装着すると、延長爪軸側に設けられている被動ピン
が、主爪軸側の駆動ピンの回転方向前面部に位置して駆
動ピンに重合当接し、その当接部を介して駆動ピンから
被動ピン側に伝達される動力でもって延長爪軸が主爪軸
と共に一体的に回転駆動される。(E) Functions and effects of the invention In the center drive tilling apparatus to which the extension claw shaft drive structure according to the invention is applied, when the extension claw shaft is attached to the outer end of the main claw shaft, it is provided on the extension claw shaft side. The driven pin is positioned at the front side in the rotational direction of the drive pin on the main claw shaft side and overlaps and contacts the drive pin, and with the power transmitted from the drive pin to the driven pin side via the contact portion. The extension claw shaft is driven to rotate integrally with the main claw shaft.
したがって、延長爪軸の継装にスプライン結合部或い
はフランジ結合部を要しないから構造簡潔で着脱が容易
である。また、延長爪軸を取り外して主爪軸のみによる
耕耘作業を行う際には、主爪軸側に駆動ピンが残るけれ
ども、該駆動ピンは主爪軸の外端部外周に主爪軸と同じ
向きで固設され、駆動ピンの外端面が主爪軸の側端面か
ら軸方向外方に出っ張らないようにして設けられている
ため、従来のフランジ構造のものい比すと、主爪軸外周
方向への駆動部材の突出が、小さくなり、駆動ピンが未
耕起部分に突出することもないので、駆動ピンへの草藁
の巻絡や、駆動ピンの摩損が少なくなって好適な作業が
できる。Therefore, since a spline connection portion or a flange connection portion is not required for connecting the extension claw shaft, the structure is simple and easy to attach and detach. Also, when performing the tilling work using only the main claw shaft by removing the extension claw shaft, the drive pin remains on the main claw shaft side, but the drive pin is the same as the main claw shaft on the outer periphery of the outer end of the main claw shaft. It is fixed so that the outer end face of the drive pin does not protrude outward in the axial direction from the side end face of the main claw shaft. Since the protrusion of the drive member in the direction becomes small and the drive pin does not protrude into the uncultivated portion, the winding of the grass around the drive pin and the wear of the drive pin are reduced, and suitable work is performed. it can.
(ヘ)実施例 次に、本考案の実施例について図面を参照して説明す
るが、第1図は本考案によるセンタードライブ耕耘装置
の要部断面図、第2図は延長爪軸の断面図、第3図は第
2図に示した延長爪軸の左側面図、第4図は延長爪軸を
取り付けない状態での主爪軸の止着態様を示す説明図で
ある。(F) Embodiment Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a main part of a center drive tilling device according to the present invention, and FIG. FIG. 3 is a left side view of the extension claw shaft shown in FIG. 2, and FIG. 4 is an explanatory diagram showing a fastening state of the main claw shaft in a state where the extension claw shaft is not attached.
第1図において、伝動ケース(1)の下端部の左右脇
部に軸受体(7)(7)が固着され、それらの軸受体
(7)(7)の水平軸心孔部に軸受(8)を介して伝動
軸(2)が回転自在に支承されるとともに、前記軸受
(8)の外側部における傾斜支持部(9)に軸受(10)
を介して傾斜爪軸筒(11)(11)が左右一対それぞれ回
転自在に支承されている。In FIG. 1, bearings (7) and (7) are fixed to left and right side portions of a lower end portion of a transmission case (1), and bearings (8) are provided in horizontal shaft holes of the bearings (7) and (7). ), The transmission shaft (2) is rotatably supported, and the bearing (10) is mounted on the inclined support portion (9) on the outer side of the bearing (8).
A pair of left and right inclined claw shaft cylinders (11) are rotatably supported via the shaft.
そして、伝動軸(2)と各傾斜爪軸筒(11)との間を
ボール伝動構造の屈折伝動部(12)によって連動連結
し、傾斜爪軸筒(11)が伝動軸(2)の軸心に対して傾
斜する軸心の回りを回転して傾斜爪軸(11)に取付けら
れた耕耘爪(13)・・が伝動ケース(1)下方の土壌を
耕起するように構成されている。Then, the transmission shaft (2) and each inclined claw shaft cylinder (11) are linked and connected by a refracting transmission portion (12) of a ball transmission structure, and the inclined claw shaft cylinder (11) is connected to the axis of the transmission shaft (2). The tilling claw (13) attached to the inclined claw shaft (11) rotates around an axis inclined with respect to the heart, and is configured to plow the soil below the transmission case (1). .
前記伝動軸(2)は、傾斜爪軸筒(11)を装備する部
分よりも更に外方に突出しており、その突出部分にはス
プラインが形設され、該スプライン部に係合するスプラ
イン孔を内端部に備えた主爪軸(3)を嵌合楔着できる
ようになっている。The transmission shaft (2) protrudes further outward than the portion provided with the inclined claw shaft cylinder (11), and a spline is formed in the protruding portion, and a spline hole engaged with the spline portion is formed. The main claw shaft (3) provided at the inner end can be fitted and wedge-fitted.
前記のように伝動軸(2)に楔着される主爪軸(3)
は、その外方端から内挿して先端の螺子部を伝動軸
(2)の軸心部に螺設されたネジ孔に螺着する固定ボル
ト(14)で抜け止め固定して取付けられる(第4図参
照)。Main pawl shaft (3) wedge-mounted on transmission shaft (2) as described above
Is inserted and inserted from the outer end of the transmission shaft (2), and is fixed with a fixing bolt (14) that is screwed into a screw hole screwed into a shaft center portion of the transmission shaft (2). 4).
また、主爪軸(3)の外周には、軸心方向と回転方向
において適宜に間配り配置される複数個の爪ブラケット
(15)・・が設けられ、それぞれの爪ブラケット(15)
に耕耘なた爪(16)・・が取付けられ、さらに、主爪軸
(3)の外端部外周には、主爪軸(3)と同じ向きの駆
動ピン(5)をその外端面(5a)が主爪軸の側端面から
外方に出っ張らないようにして固設している。Further, a plurality of claw brackets (15) are provided on the outer periphery of the main claw shaft (3) as appropriate in the axial direction and the rotation direction, and each claw bracket (15) is provided.
The main claw shaft (3) is provided with a drive pin (5) in the same direction as the main claw shaft (3). 5a) is fixed so that it does not protrude outward from the side end surface of the main claw shaft.
一方、必要に応じて、主爪軸(3)の外端部に同芯状
に継装する延長爪軸(4)は、第2図及び第3図に単品
状態を示し、第1図に取付け状態を示しているように構
成されている。つまり、延長爪軸(4)は、外周部に爪
ブラケット(17)が固設されている筒体(18)の内端側
に、前記主爪軸(3)に内嵌する挿入部(19)を一体的
に連設して構成され、前記固定ボルト(14)を抜き外し
た後の主爪軸(3)に挿入部(19)を嵌装し、しかる
後、前記固定ボルト(14)を共通に用いて主爪軸(3)
と共に伝動軸(2)へ止着されるようになっている(第
1図参照)。On the other hand, if necessary, the extension claw shaft (4) concentrically connected to the outer end of the main claw shaft (3) shows a single-piece state in FIGS. 2 and 3, and FIG. It is configured to show an attached state. In other words, the extension claw shaft (4) is provided at the inner end side of the cylindrical body (18) having the claw bracket (17) fixedly mounted on the outer peripheral portion, with the insertion portion (19) fitted inside the main claw shaft (3). ) Are integrally connected, and the insertion portion (19) is fitted to the main claw shaft (3) after the fixing bolt (14) has been pulled out and removed, and then the fixing bolt (14) Main claw shaft (3) using the same
At the same time, it is fixed to the transmission shaft (2) (see FIG. 1).
そして、延長爪軸(4)の筒体(18)の内端部外周に
は、前記駆動ピン(5)に平行する被動ピン(6)が先
端部を主爪軸(3)の方に突出させて固設され、この被
動ピン(6)が爪軸回転方向の前面側に位置して前記駆
動ピン(5)に重合当接し、その当接部を介して駆動ピ
ン(5)から被動ピン(6)側に伝達される動力でもっ
て延長爪軸(4)が主爪軸(3)と共に一体的に回転駆
動されるように構成されている。A driven pin (6) parallel to the drive pin (5) projects from the outer end of the cylindrical body (18) of the extension claw shaft (4) toward the main claw shaft (3). The driven pin (6) is positioned on the front side in the claw shaft rotation direction and abuts on the drive pin (5), and the driven pin (5) is moved from the drive pin (5) through the contact portion. The extension pawl shaft (4) is configured to rotate integrally with the main pawl shaft (3) by the power transmitted to the (6) side.
なお、実施例の図面においては、駆動ピン及び被動ピ
ンを一組のみとしているが、これらは爪軸回転方向にお
いて複数組が設けられるものであってもよい。In the drawings of the embodiment, only one set of the drive pin and the driven pin is provided, but a plurality of sets may be provided in the claw shaft rotation direction.
図中の(20)は延長爪軸のブラケットに取付けられる
耕耘なた爪である。Reference numeral (20) in the figure denotes a plowed claw attached to the bracket of the extension claw shaft.
【図面の簡単な説明】 第1図は本考案によるセンタードライブ耕耘装置の要部
断面図、第2図は延長爪軸の断面図、第3図は第2図に
示した延長爪軸の左側面図、第4図は延長爪軸を取付け
ない状態での主爪軸の止着態様を示す説明図、第5図は
従来構造を示す一部破断正面図、第6図は第5図のA−
A断面矢視図である。 (1)……伝動ケース、(2)……伝動軸、(3)……
主爪軸 (4)……延長爪軸、(5)……駆動ピン、(5a)……
外端面BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a main part of a center drive tilling device according to the present invention, FIG. 2 is a sectional view of an extension claw shaft, and FIG. 3 is a left side of the extension claw shaft shown in FIG. FIG. 4 is an explanatory view showing a fixed state of the main claw shaft in a state where the extension claw shaft is not attached, FIG. 5 is a partially cutaway front view showing a conventional structure, and FIG. A-
It is an A sectional arrow view. (1) Transmission case, (2) Transmission shaft, (3)
Main claw shaft (4) ... extension claw shaft, (5) ... drive pin, (5a) ...
Outer end face
Claims (1)
軸(2)に左右一対の主爪軸(3)を嵌着固定し、各々
の主爪軸(3)の外端部に延長爪軸(4)を同芯状に装
着可能にしてあるセンタードライブ耕耘装置において、
前記主爪軸(3)の外端部外周に、主爪軸(3)と同じ
向きの駆動ピン(5)をその外端面(5a)が主爪軸
(3)の側端面から外方に出っ張らないようにして固設
するとともに、その駆動ピン(5)に平行する被動ピン
(6)を延長爪軸(4)の内端部外周に固設して主爪軸
(3)の方に突出させて設け、延長爪軸装着時に被動ピ
ン(6)が爪軸回転方向の前面側に位置して駆動ピン
(5)に重合当接し、その当接部を介して駆動ピン
(5)から被動ピン(6)側に伝達される動力でもって
延長爪軸(4)が主爪軸(3)と共に一体的に回転駆動
されるようにしてあることを特徴とするセンタードライ
ブ耕耘装置の延長爪軸駆動構造。1. A pair of left and right main claw shafts (3) are fitted and fixed to a transmission shaft (2) supported on a lower end portion of a transmission case (1), and are attached to outer ends of the respective main claw shafts (3). In a center drive tilling device that allows the extension claw shaft (4) to be mounted concentrically,
On the outer periphery of the outer end of the main claw shaft (3), a drive pin (5) oriented in the same direction as the main claw shaft (3) has its outer end surface (5a) outward from the side end surface of the main claw shaft (3). It is fixed so that it does not protrude, and a driven pin (6) parallel to the drive pin (5) is fixed to the outer periphery of the inner end of the extension claw shaft (4) so as to face the main claw shaft (3). When the extension claw shaft is mounted, the driven pin (6) is positioned on the front side in the rotation direction of the claw shaft and abuts on the drive pin (5), and the driven pin (6) is protruded from the drive pin (5) via the contact portion. The extension claw of the center drive tilling device, wherein the extension claw shaft (4) is driven to rotate integrally with the main claw shaft (3) by power transmitted to the driven pin (6) side. Shaft drive structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5493990U JP2525975Y2 (en) | 1990-05-25 | 1990-05-25 | Extension claw shaft drive structure of center drive tilling device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5493990U JP2525975Y2 (en) | 1990-05-25 | 1990-05-25 | Extension claw shaft drive structure of center drive tilling device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0412802U JPH0412802U (en) | 1992-01-31 |
JP2525975Y2 true JP2525975Y2 (en) | 1997-02-12 |
Family
ID=31577449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5493990U Expired - Lifetime JP2525975Y2 (en) | 1990-05-25 | 1990-05-25 | Extension claw shaft drive structure of center drive tilling device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2525975Y2 (en) |
-
1990
- 1990-05-25 JP JP5493990U patent/JP2525975Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0412802U (en) | 1992-01-31 |
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