JPH08242603A - Coaxially reciprocal rotation working machine - Google Patents
Coaxially reciprocal rotation working machineInfo
- Publication number
- JPH08242603A JPH08242603A JP5015895A JP5015895A JPH08242603A JP H08242603 A JPH08242603 A JP H08242603A JP 5015895 A JP5015895 A JP 5015895A JP 5015895 A JP5015895 A JP 5015895A JP H08242603 A JPH08242603 A JP H08242603A
- Authority
- JP
- Japan
- Prior art keywords
- reverse
- work
- working
- tilling
- claws
- 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
Links
Landscapes
- Soil Working Implements (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、正転作業部材を有して
正転駆動される正転作業軸と、逆転作業部材を有して逆
転駆動される逆転作業軸とを、これら作業軸を駆動する
ための駆動装置を内蔵したケーシングに同軸に支持して
なる同軸正逆転作業機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a normal rotation work shaft having a normal rotation work member and driven in the forward direction, and a reverse rotation work shaft having a reverse rotation work member and driven in the reverse direction. The present invention relates to a coaxial forward / reverse working machine that is coaxially supported in a casing that incorporates a drive device for driving the.
【0002】[0002]
【従来の技術】一般に逆転爪は土を前方に押し出す傾向
があるため、前方に押し出された土が再び同じ逆転爪に
接触して細かく砕かれるのに対し、正転爪は土を後方に
押し出す傾向があり、一度後方に押し出された土は再び
同じ正転爪に接触することはない。その結果、逆転爪に
より耕耘された土が比較的に細かくなるのに対し、正転
爪により耕耘された土は比較的に粗くなり、その差によ
って耕耘の仕上がり状態が不均一になる問題がある。2. Description of the Related Art Generally, since a reverse claw tends to push soil forward, soil pushed forward contacts the same reverse claw again and is finely crushed, whereas a forward claw pushes soil backward. There is a tendency that once pushed back, the soil does not come into contact with the same forward claw again. As a result, the soil cultivated by the reverse claw becomes comparatively fine, whereas the soil cultivated by the forward claw becomes comparatively coarse, and there is a problem that the finished state of the tillage becomes uneven due to the difference. .
【0003】そこで、実開平5−76203号公報に記
載された同軸正逆転耕耘機は、中央伝動ケースから離れ
て位置する正転爪の回転数よりも、中央伝動ケースに隣
接して位置する逆転爪の回転数を小さく設定することに
より、両作業爪により耕耘された土塊の大きさの均一化
を図っている。Therefore, the coaxial forward-reverse cultivator disclosed in Japanese Utility Model Laid-Open No. 5-76203 discloses a reverse rotation located adjacent to the central transmission case rather than a rotational speed of a forward rotation pawl located away from the central transmission case. By setting the rotation speed of the claws small, the size of the soil mass cultivated by both work claws is made uniform.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の同軸正逆転耕耘機は、ケーシングの左右両側に隣接
して左右の逆転爪を配置し、それら左右の逆転爪の外側
に左右の正転爪を配置しているので、逆転爪が前方に押
し出した土がケーシングの下面に堆積して機体がスタッ
クし易くなる問題がある。しかも、地表面に近い土中に
存在する石等の固い異物を耕耘爪が直撃した場合に正転
爪の反力は逆転爪の反力よりも大きくなるため、正転爪
を支持する耕耘軸の曲げモーメントが大きくなって強度
・剛性上不利になるばかりか、耕耘機に与えるローリン
グモーメントやヨーイングモーメントも大きくなって機
体振動が増加し、更に耕耘土壌表面の中央部に溝ができ
て仕上がり性が悪くなる等の問題がある。However, in the conventional coaxial forward / reverse cultivator described above, the left and right reversing claws are arranged adjacent to the left and right sides of the casing, and the left and right forward claws are disposed outside the left and right reversing claws. However, there is a problem that the soil pushed out by the reversing claw forward is deposited on the lower surface of the casing and the airframe is easily stacked. Moreover, the reaction force of the forward rotation claw becomes larger than the reaction force of the reverse rotation claw when the plowing claw directly hits a hard foreign matter such as a stone existing in the soil close to the ground surface. The bending moment is increased, which is disadvantageous in terms of strength and rigidity, and the rolling and yawing moments given to the cultivator are also increased to increase machine vibration. There is a problem such as worsening.
【0005】本発明は前述の事情に鑑みてなされたもの
で、土塊の大きさが揃った均一な耕耘を可能にしながら
機体のスタックを確実に防止するとともに、作業軸の強
度・剛性を向上させて機体の振動を低減し、且つ土壌の
仕上がり性を向上させることを目的とする。The present invention has been made in view of the above circumstances, and it is possible to reliably prevent stacking of an airframe while improving the strength and rigidity of a work shaft while enabling uniform plowing of soil clods of uniform size. The purpose is to reduce the vibration of the machine body and improve the finishability of soil.
【0006】[0006]
【課題を解決するための手段】前記目的を達成するため
に、請求項1に記載された発明は、正転作業部材を有し
て正転駆動される正転作業軸と、逆転作業部材を有して
逆転駆動される逆転作業軸とを、これら作業軸を駆動す
るための駆動装置を内蔵したケーシングに同軸に支持し
てなる正逆転作業機において、前記ケーシングの左右両
側に左右の正転作業部材を隣接して配設するとともに、
それら左右の正転作業部材の左右両側に左右の逆転作業
部材を隣接して配設し、更に逆転作業部材の回転数を正
転作業部材の回転数よりも小さく設定したことを特徴と
する。In order to achieve the above-mentioned object, the invention described in claim 1 includes a forward rotation work shaft which is forwardly driven and has a forward rotation work member, and a reverse rotation work member. A forward / reverse working machine having a reverse working shaft that is driven in reverse and is coaxially supported in a casing that incorporates a drive device for driving these working shafts. While arranging the work members adjacently,
The left and right reversing work members are arranged adjacent to each other on the left and right sides of the left and right forward revolving work members, and the rotation speed of the reversing work member is set to be smaller than that of the forward rotation work member.
【0007】また請求項2に記載された発明は、請求項
1の構成に加えて、逆転作業軸は正転作業軸の内部を貫
通して該正転作業軸の左右方向外端よりも更に外側に延
出していることを特徴とする。According to a second aspect of the present invention, in addition to the structure of the first aspect, the reverse rotation work shaft penetrates through the inside of the normal rotation work shaft and is further further than the outer end in the left-right direction of the normal rotation work shaft. It is characterized by extending to the outside.
【0008】また請求項3に記載された発明は、請求項
1の構成に加えて、正転作業部材の耕幅を逆転作業部材
の耕幅よりも大きく設定したことを特徴とする。載の正
逆転作業機。The invention described in claim 3 is characterized in that, in addition to the constitution of claim 1, the plowing width of the forward rotation working member is set larger than the plowing width of the reverse rotation working member. Forward and reverse working machine listed.
【0009】また請求項4に記載された発明は、請求項
1〜3の何れかの構成に加えて、正転作業部材及び逆転
作業部材が耕耘爪であることを特徴とする。In addition to the structure of any one of claims 1 to 3, the invention described in claim 4 is characterized in that the forward rotation working member and the reverse rotation working member are tilling claws.
【0010】[0010]
【作用】請求項1の構成によれば、土を前方に押し出す
逆転作業部材がケーシングから離れて配置されるので、
逆転作業部材が前方に押し出した土がケーシングの下面
に堆積して機体がスタックすることがない。また土塊が
小さくなり易い逆転作業部材の回転数が、土塊が大きく
なり易い正転作業部材の回転数よりも小さいので、両作
業部材による土塊の大きさが均一化される。更に、作業
軸の強度・剛性が向上して機体振動を低減するととも
に、耕耘土壌表面中央の溝がなくなって仕上がり性が向
上する。According to the structure of claim 1, since the reverse working member for pushing the soil forward is arranged apart from the casing,
The soil pushed out by the reversing work member to the front does not accumulate on the lower surface of the casing and the fuselage does not stack. Further, since the rotation speed of the reversing work member where the soil mass tends to become smaller is smaller than the rotation speed of the normal rotation work member where the soil mass tends to become large, the sizes of the soil mass due to both working members are made uniform. Furthermore, the strength and rigidity of the work shaft are improved to reduce machine vibration, and the groove at the center of the cultivated soil surface is eliminated to improve the finishability.
【0011】請求項2の構成によれば、耕耘負荷が大き
い正転作業部材を支持する正転作業軸は、耕耘負荷が小
さい逆転作業部材を支持する逆転作業軸よりも直径が大
きく且つ長さが短いため、両作業軸の支持部に作用する
応力が均一化される。According to the second aspect of the present invention, the forward rotation work shaft supporting the forward rotation work member having a large plowing load has a larger diameter and a longer length than the reverse rotation work shaft supporting the reverse rotation work member having a small plowing load. Since the length is short, the stress acting on the support portions of both working shafts is made uniform.
【0012】請求項3の構成によれば、正転作業部材の
推進力と逆転作業部材の制動力とが相殺した後に正転作
業部材の推進力が残るため、機体のダッシングを防止し
ながら機体に適度の推進力が与えられる。According to the third aspect of the present invention, since the propulsion force of the forward rotation work member and the braking force of the reverse rotation work member cancel each other out, the propulsion force of the forward rotation work member remains, so that dashing of the fuselage is prevented and the machine body is Is given a moderate propulsion force.
【0013】請求項4の構成によれば、正転作業部材及
び逆転作業部材が耕耘爪であるので、上記効果が一層発
揮される。According to the structure of claim 4, since the forward rotation working member and the reverse rotation working member are tilling claws, the above effect is further exerted.
【0014】[0014]
【実施例】以下、図面に基づいて本発明の実施例を説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【0015】図1〜図4は本発明の一実施例を示すもの
で、図1は歩行型耕耘作業機の全体側面図、図2は図1
の要部拡大図、図3は図2の3−3線拡大断面図、図4
は図2の4方向拡大矢視図である。1 to 4 show an embodiment of the present invention. FIG. 1 is an overall side view of a walk-type tiller, and FIG. 2 is FIG.
4 is an enlarged view of an essential part of FIG. 3, FIG. 3 is an enlarged sectional view taken along line 3-3 of FIG.
FIG. 4 is an enlarged view in the four directions of FIG.
【0016】図1に示すように、歩行型耕耘作業機T
は、左右一対の車輪W,Wを支持する走行用ミッション
ケース1から前方に延びるエンジンベッド2を備えてお
り、このエンジンベッド2の上部にクランクシャフトを
機体左右方向に配設したエンジンEが搭載される。エン
ジンEの上部には燃料タンク3及びマフラ4が支持され
るとともに、エンジンEの左側面は内部にベルトテンシ
ョンクラッチを収納するクラッチカバー5によって覆わ
れる。エンジンベッド2の前端には、エンジンEの前方
に突出するようにフロントウエイト6が装着される。As shown in FIG. 1, a walking type tiller T
Includes an engine bed 2 that extends forward from a traveling mission case 1 that supports a pair of left and right wheels W, W, and an engine E having a crankshaft arranged in the lateral direction of the machine body is mounted on the upper part of the engine bed 2. To be done. The fuel tank 3 and the muffler 4 are supported on the upper portion of the engine E, and the left side surface of the engine E is covered with a clutch cover 5 which accommodates a belt tension clutch therein. A front weight 6 is attached to the front end of the engine bed 2 so as to project to the front of the engine E.
【0017】走行用ミッションケース1の後部にはシフ
トレバーガイドプレート7が設けられており、このシフ
トレバーガイドプレート7を貫通してシフトレバー8が
機体後方に向けて延出する。また走行用ミッションケー
ス1の後部には、ハンドル9と一体のハンドルコラム1
0が角度調節可能に支持される。ハンドル9には、クラ
ッチレバー11、スロットルレバー12及びデフロック
レバー13が設けられる。A shift lever guide plate 7 is provided at the rear part of the traveling mission case 1, and a shift lever 8 extends rearward of the machine body through the shift lever guide plate 7. In addition, a steering wheel column 1 integrated with a steering wheel 9 is provided at the rear of the traveling mission case 1.
0 is supported so that the angle can be adjusted. The handlebar 9 is provided with a clutch lever 11, a throttle lever 12, and a diff lock lever 13.
【0018】図2を併せて参照すると明らかなように、
走行用ミッションケース1の後部に連設された耕耘作業
用ミッションケース14の後端にロータリ作業機15が
設けられる。ロータリ作業機15の上面はロータリカバ
ー16によって覆われており、そのロータリカバー16
の後部に上下位置調節自在な抵抗棒17と上下揺動自在
な均平板18とが設けられる。尚、抵抗棒17の代わり
に尾輪(不図示)を装着して耕耘作業を行う場合もあ
る。As can be seen by referring also to FIG.
A rotary working machine 15 is provided at a rear end of the tilling work mission case 14 which is continuously provided at the rear part of the traveling mission case 1. The upper surface of the rotary working machine 15 is covered with a rotary cover 16, and the rotary cover 16
A resistance rod 17 whose vertical position can be adjusted and a leveling plate 18 which can be vertically swung are provided at the rear portion. In addition, instead of the resistance rod 17, a tail wheel (not shown) may be attached to perform cultivating work.
【0019】図2及び図3に示すように、耕耘作業用ト
ランスミッションMを収納する耕耘作業用ミッションケ
ース14は、左ケース半体21及び右ケース半体22を
複数のボルト23…で結合してなり、その後部は保護用
のパンツ24,25によって覆われる。耕耘作業用ミッ
ションケース14の後部には、一対のボールベアリング
26,26で同軸に支持された筒状部材よりなる左右の
正転耕耘作業軸27L,27Rと、左右の正転耕耘作業
軸27L,27Rの内周に4個のニードルベアリング2
8…で相対回転自在に支持されて左右に延出する1本の
逆転耕耘作業軸29とが配置される。As shown in FIGS. 2 and 3, the tillage work case 14 for accommodating the tiller work transmission M is formed by connecting the left case half body 21 and the right case half body 22 with a plurality of bolts 23. And its rear part is covered with protective pants 24, 25. At the rear part of the tillage work case 14, left and right forward rotation tillage work shafts 27L and 27R, which are cylindrical members coaxially supported by a pair of ball bearings 26 and 26, and left and right forward rotation tillage work shafts 27L, 4 needle bearings 2 on the inner circumference of 27R
One reverse cultivating work shaft 29 which is rotatably supported by 8 and extends left and right is arranged.
【0020】正転耕耘作業軸27L,27R及び逆転耕
耘作業軸29の前方には、中間軸30が一対のボールベ
アリング31,,31を介して支持される。中間軸30
に固着した耕耘作業用ドリブンスプロケット32に、無
端チェーン33を介してエンジンEの駆動力が伝達され
る。中間軸30に固着した第1スプロケット34と逆転
耕耘作業軸29に固着した第2スプロケ35とが無端チ
ェーン36で接続されており、これにより逆転耕耘作業
軸29は中間軸30と同方向に逆転(機体の走行方向と
逆方向)駆動される。An intermediate shaft 30 is supported in front of the normal tilling work shafts 27L and 27R and the reverse tilling work shaft 29 through a pair of ball bearings 31 and 31. Intermediate shaft 30
The driving force of the engine E is transmitted to the driven sprocket 32 for tillage work that is fixedly attached to the above through the endless chain 33. The first sprocket 34 fixed to the intermediate shaft 30 and the second sprocket 35 fixed to the reverse cultivating work shaft 29 are connected by an endless chain 36, whereby the reverse cultivating work shaft 29 is reversed in the same direction as the intermediate shaft 30. It is driven (in the direction opposite to the traveling direction of the machine body).
【0021】一方、中間軸30の両端に固着した一対の
第1ギヤ37L,37Rは、左右の正転耕耘作業軸27
L,27Rに設けた一対の第2ギヤ38L,38Rにそ
れぞれ噛合する。従って、両正転耕耘作業軸27L,2
7Rは中間軸30及び逆転耕耘作業軸29と逆方向に正
転(機体の走行方向と同方向)駆動される。On the other hand, the pair of first gears 37L and 37R fixed to both ends of the intermediate shaft 30 are the left and right forward-rotating tillage work shafts 27.
The gears mesh with a pair of second gears 38L and 38R provided on the L and 27R, respectively. Therefore, both forward rotation work shafts 27L, 2
The 7R is driven in the normal direction (the same direction as the traveling direction of the machine body) in the direction opposite to the direction of the intermediate shaft 30 and the reverse rotation tilling work shaft 29.
【0022】例えば、小型の歩行型耕耘作業機Tでは、
第1スプロケット34及び第2スプロケット35の歯数
はそれぞれ9及び13であり、従って第1スプロケット
34から第2スプロケット35への減速比は、13/9
=1.444…である。一方、一対の第1ギヤ37L,
37Rの歯数は共に18であり、一対の第2ギヤ38
L,38Rの歯数は共に22であるため、第1ギヤ37
L,37Rから第2ギヤ38L,38Rへの減速比は、
22/18=1.222…である。即ち、減速比の大き
い逆転耕耘作業軸29は減速比の小さい左右の正転耕耘
作業軸27L,27Rに比べて僅かに少ない回転数で回
転する。For example, in a small walking type tiller T,
The number of teeth of the first sprocket 34 and the second sprocket 35 is 9 and 13, respectively, so that the reduction ratio from the first sprocket 34 to the second sprocket 35 is 13/9.
= 1.444 ... On the other hand, the pair of first gears 37L,
The number of teeth of 37R is 18, and the pair of second gears 38
Since the number of teeth of both L and 38R is 22, the first gear 37
The reduction ratio from the L, 37R to the second gears 38L, 38R is
22/18 = 1.222 ... That is, the reverse cultivating work shaft 29 having a large reduction ratio rotates at a slightly lower rotational speed than the left and right forward cultivating work shafts 27L and 27R having a small reduction ratio.
【0023】正転耕耘作業軸27L,27Rの外周と耕
耘作業用ミッションケース14との間はシール部材3
9,39によりシールされ、また正転耕耘作業軸27
L,27Rの内周と逆転耕耘作業軸29の外周との間は
シール部材40…によりシールされる。A seal member 3 is provided between the outer circumferences of the forward rotation plowing work shafts 27L and 27R and the plowing work mission case 14.
Sealed by 9,39, and also forward rotation plowing work shaft 27
A sealing member 40 seals between the inner circumference of the L and 27R and the outer circumference of the reverse tillage work shaft 29.
【0024】図3及び図4に示すように、左右の正転耕
耘作業軸27L,27Rに設けた板状の糸切り器41,
41に、耕耘作業用ミッションケース14側に突出する
糸切り爪411 ,411 が切り起こしにより形成され
る。糸切り爪411 ,411 は正転耕耘作業軸27L,
27Rに絡み付いた藁や糸等を切断する機能を有する。As shown in FIGS. 3 and 4, the plate-shaped thread trimmer 41, provided on the left and right forward-rotating tillage work shafts 27L and 27R,
Thread cutting claws 41 1 and 41 1 projecting toward the cultivating mission case 14 side are formed on 41 by cutting and raising. The thread trimming claws 41 1 and 41 1 are the normal rotation tilling work shaft 27L,
It has a function of cutting straw, thread, etc. entwined with 27R.
【0025】左右の正転耕耘作業軸27L,27Rの外
周に、それぞれ筒状ホルダー42,42が嵌合してキー
43,43により着脱自在に固定される。筒状ホルダー
42,42の内端面に固着したフランジ44,44と前
記糸切り器41,41とがボルト45,45により結合
される。また正転耕耘作業軸27L,27Rから左右両
側に突出する逆転耕耘作業軸29には、左右の筒状ホル
ダー46,46が嵌合してピン47,47により着脱自
在に固定される。逆転耕耘作業軸29の筒状ホルダー4
6,46の内端には、正転耕耘作業軸27L,27Rの
外端開口部からの泥の侵入を防止するための皿状のカバ
ー48,48が設けられる。Cylindrical holders 42, 42 are fitted on the outer peripheries of the left and right forward rotation plowing work shafts 27L, 27R, respectively, and detachably fixed by keys 43, 43. The thread holders 41, 41 are connected to the flanges 44, 44 fixed to the inner end surfaces of the cylindrical holders 42, 42 by bolts 45, 45. Further, the left and right cylindrical holders 46, 46 are fitted to the reverse cultivating work shafts 29 protruding from the normal rotating cultivating work shafts 27L, 27R to the left and right sides, and detachably fixed by the pins 47, 47. Cylindrical holder 4 for reverse cultivating work shaft 29
Dish-shaped covers 48, 48 are provided at the inner ends of 6, 46 for preventing the intrusion of mud from the outer end openings of the normal rotation plowing work shafts 27L, 27R.
【0026】左側の正転耕耘作業軸27Lに設けた筒状
ホルダー42には5個のブラケット49…が放射状に設
けられており、それぞれのブラケット49…に正転爪5
01〜505 がボルト51…で固定される。5枚の正転
爪501 〜505 は、先端が回転方向遅れ側に湾曲する
とともに左右方向にも湾曲する、所謂ナタ爪とされる。
右側の正転耕耘作業軸27Rにも、前記左側の正転耕耘
作業軸27Lと面対称に5枚の正転爪501 〜505 が
設けられる。Five brackets 49 are radially provided on the cylindrical holder 42 provided on the left normal rotation tillage work shaft 27L, and the forward rotation claws 5 are provided on the respective brackets 49.
0 1 to 50 5 are fixed by bolts 51 ... The five forward-rotating claws 50 1 to 50 5 are so-called loose claws whose tips are curved in the rotation direction delay side and are also curved in the left-right direction.
To the right of the forward tilling shaft 27R, it is five Seitentsume 50 1-50 5 provided in the forward tilling shaft 27L and plane symmetry of the left.
【0027】逆転耕耘作業軸29の左端に設けた筒状ホ
ルダー44には3個のブラケット52…が放射状に設け
られており、それぞれのブラケット52…に逆転爪53
1 〜533 がボルト54…で固定される。3枚の逆転爪
531 〜533 は、先端が回転方向遅れ側に湾曲すると
ともに左右方向にも湾曲する、所謂ナタ爪とされる。逆
転耕耘作業軸29の右端にも、前記左端側と面対称に3
枚の逆転爪531 〜533 が設けられる。A cylindrical holder 44 provided at the left end of the reverse cultivating work shaft 29 is provided with three brackets 52 ... Radially, and each of the brackets 52 ...
1-53 3 is bolted 54 .... The three reversing claws 53 1 to 53 3 are so-called loose claws whose tips are curved in the rotation direction delay side and are also curved in the left-right direction. The right end of the reverse cultivating work shaft 29 is also plane-symmetrical with the left end side.
Reversing claws 53 1 to 53 3 are provided.
【0028】而して、耕耘作業用ミッションケース14
の左右両側面に隣接して左右各5枚の正転爪501 〜5
05 が配置され、その左右外側に各3枚の逆転爪531
〜533 が配設される。Thus, the tillage work mission case 14
Adjacent to the left and right side surfaces of each of the five forward rotation claws 50 1 to 5
0 5 are arranged, and three reversing claws 53 1 are provided on the left and right outer sides thereof.
~ 53 3 are provided.
【0029】尚、前記ナタ爪に代えて、すくい爪や花び
ら爪を使用することができる。すくい爪は逆転爪に用い
られ、深く耕耘した土塊をより多く後方に飛散させるも
のである。花びら爪は、正転爪及び逆転爪に共用するこ
とができる。また、正転爪501 〜505 及び逆転爪5
31 〜533 の直径は略等しく設定される。これによ
り、土中の未耕土面が平坦になって水田の水だめがなく
なるとともに、耕耘土壌表面も均一化される。It should be noted that a scooping nail or a petal nail may be used in place of the nata nail. The scooping claw is used for the reversing claw, and scatters more deeply tilled soil mass to the rear. The petal nail can be commonly used for the forward rotation nail and the reverse rotation nail. In addition, the forward rotation claws 50 1 to 50 5 and the reverse rotation claw 5
The diameters of 3 1 to 53 3 are set to be substantially equal. As a result, the surface of the uncultivated soil in the soil becomes flat and the water in the paddy field disappears, and the surface of the cultivated soil becomes uniform.
【0030】次に、前述の構成を備えた本発明の実施例
の作用について説明する。Next, the operation of the embodiment of the present invention having the above construction will be described.
【0031】エンジンEのクランクシャフトの回転は無
端チェーン33及び耕耘作業用ドリブンスプロケット3
2を介して中間軸30に伝達される。中間軸30の回転
は第1スプロケット34、無端チェーン36及び第2ス
プロケット35を介して逆転耕耘作業軸29に伝達さ
れ、この逆転耕耘作業軸29を左右の逆転爪531 〜5
33 と共に逆転駆動する。また中間軸30の回転は一対
の第1ギヤ37L,37R及び一対の第2ギヤ28L,
38Rを介して左右の正転耕耘作業軸27L,27Rに
伝達され、左右の正転耕耘作業軸27L,27Rと共に
左右の正転爪50 1 〜505 を正転駆動する。このと
き、前述したように、逆転爪531 〜533の回転数は
正転爪501 〜505 の回転数よりも僅かに小さくな
る。There is no rotation of the crankshaft of the engine E.
End chain 33 and driven sprocket 3 for tilling work
It is transmitted to the intermediate shaft 30 via 2. Rotation of intermediate shaft 30
Is the first sprocket 34, the endless chain 36 and the second sprocket.
It is transmitted to the reverse tillage work shaft 29 via the sprocket 35.
Then, the reversing tillage work shaft 29 is attached to the left and right reversing claws 53.1~ 5
Three3Drives in reverse with. The rotation of the intermediate shaft 30 is a pair.
First gears 37L, 37R and a pair of second gears 28L,
38R to the left and right forward rotation plowing work shafts 27L and 27R
It is transmitted, and with the left and right forward rotation plowing work shafts 27L and 27R.
Left and right forward claws 50 1~ 50FiveDrive forward. This and
As described above, the reversing claw 531~ 533The rotation speed of
Forward claw 501~ 50FiveSlightly smaller than the rotation speed of
It
【0032】これにより、土塊が小さくなり易い逆転爪
531 〜533 の作用を弱めるとともに土塊が大きくな
り易い正転爪501 〜505 の作用を強め、ロータリ作
業機15の耕幅の全域に亘って土塊の大きさを均一化す
ることができる。As a result, the action of the reversing claws 53 1 to 53 3 that tend to reduce the soil mass is weakened and the action of the normal rotating pawls 50 1 to 50 5 that tends to increase the soil mass is strengthened, and the entire working width of the rotary working machine 15 is increased. The size of the soil mass can be made uniform over the entire length.
【0033】ところで、機体の走行方向と同方向に回転
する正転爪501 〜505 は耕耘した土を後方にね上げ
るが、機体の走行方向と逆方向に回転する逆転爪531
〜533 は土を前方にはね上げることになる。従って、
もしも逆転爪531 〜533を機体の左右方向内側に配
設すると、逆転爪531 〜533 が前方にはね上げた土
が耕耘作業用ミッションケース14の前面に抱きかかえ
られて機体がスタックする可能性がある。しかしなが
ら、機体の左右方向内側に正転爪501 〜505を配置
し、その外側に逆転爪531 〜533 を配置したことに
より、逆転爪53 1 〜533 と耕耘作業用ミッションケ
ース14との距離が充分に確保されるため、逆転爪53
1 〜533 が前方にはね上げた土が耕耘作業用ミッショ
ンケース14の下面に堆積し難くなって機体のスタック
が未然に防止される。By the way, rotation in the same direction as the traveling direction of the machine body
Forward claw 501~ 50FiveLifts the tilled soil backwards
However, the reverse rotation claw 53 that rotates in the direction opposite to the traveling direction of the machine body1
~ 533Will splash the soil forward. Therefore,
If reverse claw 531~ 533On the inside of the machine in the left-right direction.
When installed, reverse claw 531~ 533Soil splashed forward
Hold in front of the tillage mission case 14
The aircraft may get stuck and get stuck. But Naga
Forward claw 50 on the left and right sides of the machine1~ 50FivePlace
And the reverse claw 53 on the outside1~ 533To have placed
Than the reverse claw 53 1~ 533And field work for tillage work
Since the sufficient distance from the base 14 is secured, the reverse rotation claw 53
1~ 533The soil that has been splashed forward is for the cultivation work.
It becomes difficult to accumulate on the bottom surface of the case 14
Is prevented in advance.
【0034】また、図4から明らかなように、正転爪5
01 〜505 の耕幅L1 は逆転爪531 〜533 の耕幅
L2 よりも広く設定されているため、正転爪501 〜5
05の耕耘反力(機体の推進力)は逆転爪531 〜53
3 の耕耘反力(機体の制動力)よりも大きくなる。従っ
て、正転爪501 〜505 による機体の推進力と逆転爪
531 〜533 による機体の制動力とが相殺した後に所
定の推進力が残存するため、機体のダッシングを防止し
ながら機体に適度な推進力を与えて作業能率を高めるこ
とができる。Further, as is apparent from FIG. 4, the forward rotation claw 5
Since the plowing width L 1 of 0 1 to 50 5 is set wider than the plowing width L 2 of the reverse rotation claws 53 1 to 53 3 , the forward rotation claws 50 1 to 5 5
The tilling reaction force of 0 5 (the propulsion force of the airframe) is the reverse claws 53 1 to 53.
It is larger than the plowing reaction force of 3 (braking force of the aircraft). Therefore, a predetermined propulsive force remains after the propulsion force of the machine body by the forward rotation claws 50 1 to 50 5 and the braking force of the machine body by the reverse rotation claws 53 1 to 53 3 cancel each other, so that the machine body is prevented from dashing and the machine body is prevented. The work efficiency can be improved by giving an appropriate propulsion force to the.
【0035】また、機体の走行方向に沿って凹状の溝と
凸状の畝とが平行に存在する場合、機体が前記畝に乗り
上げてスタックするのを防止するために、機体が溝の上
方に沿うように走行するのが一般的であるが、このとき
正転爪501 〜505 は溝によって空転し、逆転爪53
1 〜533 が畝に当接するため、機体がダッシングを起
こすことがない。When the concave groove and the convex ridge are parallel to each other along the traveling direction of the machine body, the machine body is placed above the groove in order to prevent the machine body from riding on the ridge and stacking. Although for traveling along is common, Seitentsume 50 1-50 5 this time is idle by the grooves, the reverse rotation pawl 53
For 1-53 3 abuts the ridge, aircraft never cause Dasshingu.
【0036】しかも、機体の中心線に対して左右の正転
爪501 〜505 及び左右の逆転爪531 〜533 を左
右対称に配置したので、左右の耕耘負荷がバランスして
機体の直進性が向上する。更に、正転爪501 〜505
と逆転爪531 〜533 とを同軸に配置したので、それ
らを前後に配置する場合に比べて、機体の旋回性能が向
上する。[0036] Moreover, since the arranged Seitentsume 50 1-50 5 and the left and right reversing pawl 53 1-53 3 right and left symmetrically with respect to the center line of the fuselage, the fuselage left and right tilling load is balanced Straightness is improved. Further, the forward rotation claws 50 1 to 50 5
Since the reversing claws 53 1 to 53 3 are arranged coaxially with each other, the turning performance of the machine body is improved as compared with the case where they are arranged front and rear.
【0037】ところで、地表面に近い土中に小石等の異
物が存在する場合、ダウンカット爪である正転爪が前記
異物に当たると、その異物が土中に押し込まれるために
正転爪の耕耘反力は比較的に大きなものとなる。一方、
アップカット爪である逆転爪が前記異物に当たると、そ
の異物は容易に地表面に押し出されるために逆転爪の耕
耘反力は比較的に小さなものとなる。従って、耕耘反力
が大きい正転爪を機体から離れた位置に配置すると、正
転耕耘作業軸の基端部に大きな曲げモーメントが作用し
て強度上不利になる。しかしながら、本発明では耕耘反
力が小さい逆転爪531 〜533 を機体から離れた位置
に配置し、耕耘反力が大きい正転爪50 1 〜505 を機
体に近い位置に配置しているので、正転耕耘作業軸27
L,27R及び逆転耕耘作業軸29に作用する曲げモー
メントを均一化することができる。By the way, pebbles, etc. are found in the soil near the ground surface.
If an object is present, the forward cut nail, which is a down-cut nail, is
If you hit a foreign substance, it will be pushed into the soil.
The plowing reaction force of the forward claw becomes relatively large. on the other hand,
If the reverse claw, which is an up-cut claw, hits the foreign matter,
Foreign matter is easily pushed to the ground surface
The reaction force is relatively small. Therefore, the plowing reaction force
If the forward claw with a large
A large bending moment is applied to the base end of the rotary tillage work shaft.
Will be disadvantageous in terms of strength. However, according to the present invention,
Reversing claw 53 with small force1~ 533Position away from the aircraft
The forward rotation claw 50, which has a large plowing reaction force. 1~ 50FiveThe machine
Since it is located close to the body, it is a normal rotation plowing work shaft 27
Bending mode that acts on L, 27R and reverse tillage work axis 29
Can be made uniform.
【0038】しかも、耕耘反力が大きい正転爪501 〜
505 を支持する正転耕耘作業軸27L,27Rは、逆
転耕耘作業軸29を内部に収納する直径が大きい筒状の
部材であるため、前述した正転耕耘作業軸27L,27
Rの長さが逆転耕耘作業軸29の長さよりも短いことと
相俟って、正転耕耘作業軸27L,27Rの基端に大き
な曲げ応力が発生することが効果的に防止される。In addition, the forward rotation claws 50 1 -having a large plowing reaction force
The normal tilling work shafts 27L and 27R supporting the 50 5 are cylindrical members having a large diameter for accommodating the reverse tilling work shaft 29 therein.
Coupled with the fact that the length of R is shorter than the length of the reverse cultivating work shaft 29, it is possible to effectively prevent a large bending stress from being generated at the base ends of the normal cultivating work shafts 27L and 27R.
【0039】以上、本発明の実施例を詳述したが、本発
明はその要旨を逸脱しない範囲で種々の設計変更を行う
ことが可能である。Although the embodiments of the present invention have been described in detail above, the present invention can be modified in various ways without departing from the scope of the invention.
【0040】例えば、正転耕耘作業軸27L,27Rの
回転数と逆転耕耘作業軸29の回転数との比は、実施例
のものに限定されず適宜設定可能である。For example, the ratio between the rotational speeds of the forward rotation tilling work shafts 27L and 27R and the rotating speed of the reverse tillage work shaft 29 is not limited to that of the embodiment, and can be set appropriately.
【0041】[0041]
【発明の効果】以上のように、請求項1に記載された発
明によれば、ケーシングの左右両側に左右の正転作業部
材を隣接して配設するとともに、それら左右の正転作業
部材の左右両側に左右の逆転作業部材を隣接して配設
し、更に逆転作業部材の回転数を正転作業部材の回転数
よりも小さく設定したので、逆転作業部材が前方に押し
出した土がケーシングの下面に堆積して機体がスタック
することが防止されるだけでなく、逆転作業部材による
土塊の大きさ及び正転作業部材のよる土塊の大きさを均
一化することができる。しかも、作業軸の強度・剛性を
高め、機体の振動を低減し、耕耘土壌表面の中央部に溝
ができるのを防止して土壌の仕上がり性を向上させるこ
とができる。As described above, according to the invention described in claim 1, the left and right forward rotation working members are arranged adjacent to each other on both the left and right sides of the casing, and the left and right forward rotation working members are disposed. Since the left and right reversing work members are arranged adjacent to each other on the left and right sides, and the rotation speed of the reversing work member is set to be smaller than the rotation speed of the forward rotation work member, the soil pushed out by the reversing work member to the front is Not only is it possible to prevent the airframes from accumulating on the lower surface to be stacked, but also it is possible to make the size of the clod by the reversing working member and the size of the clod by the normal working member uniform. Moreover, the strength and rigidity of the work shaft can be increased, the vibration of the machine body can be reduced, a groove can be prevented from being formed in the central portion of the surface of the cultivated soil, and the finishability of the soil can be improved.
【0042】また請求項2に記載された発明によれば、
逆転作業軸は正転作業軸の内部を貫通して該正転作業軸
の左右方向外端よりも更に外側に延出しているので、耕
耘負荷が大きい正転作業部材を支持する正転作業軸は、
耕耘負荷が小さい逆転作業部材を支持する逆転作業軸よ
りも直径が大きく且つ長さが短くなり、両作業軸の支持
部に作用する応力を均一化することができる。According to the invention described in claim 2,
Since the reverse rotation work shaft penetrates the inside of the forward rotation work shaft and extends further outward than the outer end of the forward rotation work shaft in the left-right direction, the forward rotation work shaft supporting the forward rotation work member having a large plowing load. Is
The diameter and length of the reversing work shaft supporting the reversing work member having a small tilling load are larger and the length is shorter, so that the stress acting on the supporting portions of both work shafts can be made uniform.
【0043】また請求項3に記載された発明によれば、
正転作業部材の耕幅を逆転作業部材の耕幅よりも大きく
設定したので、機体のダッシングを防止しながら機体に
適度の推進力を与えることができる。According to the invention described in claim 3,
Since the plowing width of the forward rotation working member is set to be larger than the plowing width of the reverse rotation working member, it is possible to apply an appropriate propulsive force to the machine body while preventing dashing of the machine body.
【0044】また請求項4に記載された発明によれば、
正転作業部材及び逆転作業部材が耕耘爪であるので、上
記効果が一層発揮される。According to the invention described in claim 4,
Since the forward rotation working member and the reverse rotation working member are tilling claws, the above effect is further exhibited.
【図1】歩行型耕耘作業機の全体側面図[Figure 1] Overall side view of a walk-behind tiller
【図2】図1の要部拡大図FIG. 2 is an enlarged view of a main part of FIG.
【図3】図2の3−3線拡大断面図3 is an enlarged sectional view taken along line 3-3 of FIG.
【図4】図2の4方向拡大矢視図FIG. 4 is an enlarged view in the four directions of FIG.
14 耕耘作業用ミッションケース(ケーシン
グ) 27L,27R 正転耕耘作業軸(正転作業軸) 29 逆転耕耘作業軸(逆転作業軸) 501 〜505 正転爪(正転作業部材) 531 〜533 逆転爪(逆転作業部材) L1 耕幅 L2 耕幅 M 耕耘作業用トランスミッション(駆動装
置)14 tilling for transmission case (casing) 27L, 27R forward tilling shaft (forward working axis) 29 reverse tilling shaft (reverse working axis) 50 1-50 5 Seitentsume (forward working member) 53 1 - 53 3 Reversing claw (reversing work member) L 1 tilling width L 2 tilling width M Tillage work transmission (drive device)
Claims (4)
て正転駆動される正転作業軸(27L,27R)と、逆
転作業部材(531 〜533 )を有して逆転駆動される
逆転作業軸(29)とを、これら作業軸(27L,27
R,29)を駆動するための駆動装置(M)を内蔵した
ケーシング(14)に同軸に支持してなる同軸正逆転作
業機において、 前記ケーシング(14)の左右両側に左右の正転作業部
材(501 〜505 )を隣接して配設するとともに、そ
れら左右の正転作業部材(501 〜505 )の左右両側
に左右の逆転作業部材(531 〜533 )を隣接して配
設し、更に逆転作業部材(531 〜533 )の回転数を
正転作業部材(501 〜505 )の回転数よりも小さく
設定したことを特徴とする同軸正逆転作業機。1. A forward working member (50 1 to 50 5) forward driven forward working axis a (27L, 27R) has a reversal working member (53 1 to 53 3) The reverse working shaft (29) driven in the reverse direction is connected to these working shafts (27L, 27L).
A coaxial forward / reverse working machine which is coaxially supported by a casing (14) containing a drive unit (M) for driving R, 29), wherein left and right forward working members are provided on both left and right sides of the casing (14). while disposed adjacent the (50 1 to 50 5), left and right sides to the right and left reverse working member (53 1 to 53 3) thereof right and left forward working member (50 1 to 50 5) adjacent the disposed, and further reverses the work member (53 1 to 53 3) coaxial forward and reverse working machine, characterized in that set smaller than the rotational speed of the forward working member the rotational speed (50 1 to 50 5).
L,27R)の内部を貫通して該正転作業軸(27L,
27R)の左右方向外端よりも更に外側に延出している
ことを特徴とする、請求項1記載の同軸正逆転作業機。2. The reverse rotation work shaft (29) is a forward rotation work shaft (27).
L, 27R) to penetrate the forward rotation work shaft (27L,
27R) is extended further outside than the outer end in the left-right direction, and the coaxial forward / reverse working machine according to claim 1.
(L1 )を逆転作業部材(531 〜533 )の耕幅(L
2 )よりも大きく設定したことを特徴とする、請求項1
記載の同軸正逆転作業機。3. A forward working member (50 1 to 50 5) of tillage width tillage width (L 1) a reverse working member (53 1 to 53 3) (L
2. It is set to be larger than 2 ).
Coaxial forward / reverse working machine described.
転作業部材(531〜533 )が耕耘爪であることを特
徴とする、請求項1〜3の何れかに記載の同軸正逆転作
業機。4. A forward working member (50 1 to 50 5) and reverse working member (53 1 to 53 3) is characterized in that it is a tilling claws, coaxial according to any one of claims 1 to 3 Forward / reverse working machine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7050158A JP3062795B2 (en) | 1995-03-09 | 1995-03-09 | Coaxial forward / reverse working machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7050158A JP3062795B2 (en) | 1995-03-09 | 1995-03-09 | Coaxial forward / reverse working machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08242603A true JPH08242603A (en) | 1996-09-24 |
JP3062795B2 JP3062795B2 (en) | 2000-07-12 |
Family
ID=12851396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7050158A Expired - Lifetime JP3062795B2 (en) | 1995-03-09 | 1995-03-09 | Coaxial forward / reverse working machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3062795B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100655323B1 (en) * | 2002-01-16 | 2006-12-08 | 혼다 기켄 고교 가부시키가이샤 | Walk-behind cultivator |
CN1303861C (en) * | 2004-11-19 | 2007-03-14 | 浙江工业大学 | Reconstructable modular small multifunctional working machine |
JP2015031066A (en) * | 2013-08-02 | 2015-02-16 | 本田技研工業株式会社 | Auger type snow remover |
-
1995
- 1995-03-09 JP JP7050158A patent/JP3062795B2/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100655323B1 (en) * | 2002-01-16 | 2006-12-08 | 혼다 기켄 고교 가부시키가이샤 | Walk-behind cultivator |
CN1303861C (en) * | 2004-11-19 | 2007-03-14 | 浙江工业大学 | Reconstructable modular small multifunctional working machine |
JP2015031066A (en) * | 2013-08-02 | 2015-02-16 | 本田技研工業株式会社 | Auger type snow remover |
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