JPS64448Y2 - - Google Patents
Info
- Publication number
- JPS64448Y2 JPS64448Y2 JP1663288U JP1663288U JPS64448Y2 JP S64448 Y2 JPS64448 Y2 JP S64448Y2 JP 1663288 U JP1663288 U JP 1663288U JP 1663288 U JP1663288 U JP 1663288U JP S64448 Y2 JPS64448 Y2 JP S64448Y2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- soil
- excavation
- horizontal
- excavated
- 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
- 239000002689 soil Substances 0.000 claims description 43
- 238000009412 basement excavation Methods 0.000 claims description 21
- 238000005452 bending Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 8
- 210000000078 claw Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Landscapes
- Soil Working Implements (AREA)
- Earth Drilling (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、主として農耕地、土木、建設用の所
定幅、所定深さの溝を掘る作業に用いられるロー
タリトレンチヤに関し、特に、掘削土を掘削刃か
ら掻落す反転板に関するものである。[Detailed description of the invention] [Field of industrial application] The present invention relates to a rotary trencher used for digging trenches of a predetermined width and a predetermined depth mainly for agricultural land, civil engineering, and construction. This relates to a reversing plate that scrapes off the excavation blade from the excavation blade.
［従来の技術］
伝動ケースの下端部に垂直方向に向け軸支され
た大径のデイスクの周縁から放射方向に多数の掘
削刃を取付け、デイスクを所定方向に回転するこ
とにより狭い幅で深さの深い溝を掘削するように
したロータリトレンチヤが知られている。[Prior art] A large number of cutting blades are attached radially from the periphery of a large diameter disk that is vertically supported at the lower end of the transmission case, and by rotating the disk in a predetermined direction, it is possible to cut depth with a narrow width. A rotary trencher designed to excavate deep trenches is known.
［考案が解決しようとする課題］
この従来周知のロータリトレンチヤの掘削刃
は、土壌を掘削して回転後方に向け放出するのみ
で、掘削刃自体に、掘削した土壌を溝から揚上し
て溝の外側に放てきする機能は備えておらず、こ
のため、掘削された土壌を別の排出機構を用いて
溝外に排出する必要があつた。また、横刃に付着
して揚上する土壌を掻落す装置を有していないの
で、作業能率が低下する問題点があつた。[Problem to be solved by the invention] The excavating blade of this conventionally known rotary trencher only excavates soil and discharges it toward the rear of the rotation. It does not have a function to release soil to the outside of the trench, so it was necessary to use a separate drainage mechanism to discharge the excavated soil outside the trench. Furthermore, since the machine does not have a device for scraping off the soil that adheres to the side blades and lifts up, there is a problem in that the work efficiency is reduced.
［課題を解決するための手段］
そこで本考案は、上記の課題を解決するため
に、伝動ケースの下端部に垂直方向に向け軸支さ
れた大径のデイスクの周縁から放射方向に多数の
掘削刃を取付け、所定幅、所定深さの溝を掘削す
るようにしたロータリトレンチヤにおいて、前記
掘削刃を、取付基部から垂直方向に延びる縦刃
と、縦刃から一側横方向に屈曲し、その屈曲角度
を、掘削した土壌が縦刃の側面に沿つて揚上さ
れ、かつ側方に放出するように縦刃の側面に連続
する側面となるよう設定した横刃とにより構成す
ると共に、掘削刃が土壌表面から抜出す第１象限
位置に、横刃に付着して揚上する土壌を掻落す反
転板を配設したことを特徴とするものである。[Means for Solving the Problems] Therefore, in order to solve the above problems, the present invention creates a large number of holes radially from the periphery of a large-diameter disk that is vertically supported at the lower end of the transmission case. A rotary trencher is provided with a blade attached thereto to excavate a groove of a predetermined width and a predetermined depth, and the excavation blade includes a vertical blade extending vertically from a mounting base and one side bent laterally from the vertical blade, The bending angle is configured by a horizontal blade that is set so that the excavated soil is lifted up along the side of the vertical blade and is discharged to the side, and the horizontal blade is set to be continuous with the side of the vertical blade. It is characterized in that a reversing plate is disposed in the first quadrant position where the blade is extracted from the soil surface to scrape off the soil that is attached to the horizontal blade and lifted up.
［作用］
上記の構成を有することによつて本考案は、排
出機構を設けることなく横刃から放出される土
壌、あるいは横刃に付着して揚上する土壌等を落
下させ、掘削刃による掘削土の持回りを防止し
て、粘質土壌でも連続した掘削作業を支障なく行
なえ、所望の幅および深さの溝を掘削することが
できる。[Function] By having the above structure, the present invention allows soil discharged from the side blade or soil that is lifted up by adhering to the side blade to fall, without providing a discharge mechanism, and excavation by the excavation blade. By preventing the soil from turning around, continuous excavation work can be performed without any problem even in clayey soil, and trenches of desired width and depth can be excavated.
［実施例］
以下、図示の実施例を参照して本考案を説明す
る。[Embodiments] The present invention will be described below with reference to illustrated embodiments.
第１図において、符号１はロータリトレンチヤ
の本体フレームで、このフレーム１には、図示し
ないトラクタに装着される左右一対のロアリンク
連結杆２とトツプマスト３が取付けられてあつて
トラクタに装着されると共に、フレーム１に固着
されたギヤボツクス４から前方に突出した入力軸
５に、トラクタのPTO軸からユニバーサルジヨ
イントおよびプロペラシヤフトを介して回転動力
が伝達されるようにしてある。ギヤボツクス４の
側部に連結されたフレーム１は中空となつていて
この中空部にギヤボツクス４から突出した回転軸
が軸装され、フレーム１から下方の機体前方に向
け傾斜した伝動ケース６に動力が伝達されるよう
になつている。伝動ケース６は上部ケース６ａと
下部ケース６ｂの２段に形成され、下部ケース６
ｂの下端部には大径のデイスク７が軸支されてい
る。このデイスク７の周縁には、第２図および第
３図に示すような掘削刃８が多数個、放射方向に
ボルトナツト９によつて所定間隔に固着され、幅
が17.5cm、深さが65cm程度の溝を掘削できるよう
になつている。 In FIG. 1, reference numeral 1 denotes a main body frame of a rotary trencher, and a pair of left and right lower link connecting rods 2 and a top mast 3 are attached to this frame 1, which are attached to a tractor (not shown). At the same time, rotational power is transmitted from a PTO shaft of the tractor to an input shaft 5 protruding forward from a gear box 4 fixed to the frame 1 via a universal joint and a propeller shaft. The frame 1 connected to the side of the gearbox 4 is hollow, and a rotating shaft protruding from the gearbox 4 is mounted in the hollow part, and power is transmitted from the frame 1 to a transmission case 6 tilted downward toward the front of the aircraft. It is beginning to be transmitted. The transmission case 6 is formed into two stages, an upper case 6a and a lower case 6b.
A large-diameter disk 7 is pivotally supported at the lower end of b. On the periphery of this disk 7, a large number of digging blades 8 as shown in FIGS. 2 and 3 are fixed at predetermined intervals in the radial direction by bolts and nuts 9, and have a width of about 17.5 cm and a depth of about 65 cm. It is now possible to excavate trenches.
掘削刃８は、その取付基部から垂直方向に延び
る縦刃８ａと、この縦刃８ａから一側横方向に屈
曲し、その屈曲角α、即ちデイスク７の回転中心
とのなす角が35度以上になるように設定された横
刃８ｂと、縦刃８ａから横刃８ｂの前縁に連続し
て形成され、横刃８ｂが回転することによつて描
く仮想円筒の曲率Ｒとほぼ等しい曲率で弯曲する
刃縁１０とを有している。また、掘削刃８は、縦
刃８ａからの横刃８ｂの張出し長さ、即ち掘削幅
Ｗを15cm以上（この実施例では17.5cm）とし（第
２図参照）、さらに、横刃８ｂは、第３図に示す
ように縦刃８ａ側の基端部の断面ａ−ｂと先端側
の断面a′−b′が、それぞれの回転円弧と交差する
接線とのなす角B1，Bnを、Bn＞B1の関係になる
ように捩曲している。そして、この捩曲、即ち、
横刃８ｂが先端側に順次立上がるように次第に弯
曲しているのと、前記屈曲角αによつて横刃８ｂ
は回転による土壌の掘削と共に、掘削した土壌を
揚上し側方に移動させ、土壌面GLから上方では
側方に放出するように縦刃８ａと横刃８ｂの側面
を連続させている。 The excavating blade 8 has a vertical blade 8a that extends vertically from its mounting base, and is bent horizontally on one side from the vertical blade 8a, and the bending angle α, that is, the angle formed with the center of rotation of the disk 7, is 35 degrees or more. The horizontal blade 8b is set to It has a curved blade edge 10. Further, the digging blade 8 has a protruding length of the horizontal blade 8b from the vertical blade 8a, that is, a digging width W of 15 cm or more (17.5 cm in this embodiment) (see Fig. 2). As shown in FIG. 3, the angles B 1 and Bn between the cross section a-b of the proximal end of the vertical blade 8a side and the cross-section a'-b' of the distal end side and the tangent line that intersects the respective rotational arcs are, It is twisted so that the relationship Bn > B 1 . And this twist, namely,
Due to the fact that the horizontal blade 8b is gradually curved so as to rise toward the tip side and the bending angle α, the horizontal blade 8b
As the soil is excavated by rotation, the excavated soil is lifted up and moved laterally, and the side surfaces of the vertical blade 8a and the horizontal blade 8b are continuous so that the excavated soil is discharged laterally above the soil surface GL.
掘削刃８の上方はカバー１１で覆われ、また、
掘削刃８の横刃屈曲側の上部側面には、横刃８ｂ
によつて掘削、揚上され、側方に放出される土壌
の持回りを防止し圃場面に落下させる反転板１２
が設けられている。この反転板１２は、回転する
掘削刃８が土壌面GLから抜出す第１象限位置に
斜め下向きに取付けられ、横刃８ｂから放出され
る土壌、あるいは横刃８ｂに付着して持回る土壌
を下方に掻落すもので、その下方に、反転板１２
から落下する土壌を掘削溝の外側へ案内する排土
板１３が設けられている。１４は、ロアリンク連
結杆２，２に取付けられたゲージホイールで、耕
深調節を行うためのものである。 The upper part of the excavating blade 8 is covered with a cover 11, and
A horizontal blade 8b is provided on the upper side surface of the horizontal blade bending side of the excavating blade 8.
A reversing plate 12 that prevents the soil excavated and lifted by the soil from being carried around and released to the side, and allows it to fall onto the field.
is provided. This reversing plate 12 is attached diagonally downward in the first quadrant position where the rotating excavation blade 8 is extracted from the soil surface GL, and is used to collect soil discharged from the horizontal blade 8b or soil attached to the horizontal blade 8b and carried around. There is a reversing plate 12 below.
A soil removal plate 13 is provided to guide soil falling from the trench to the outside of the excavation trench. 14 is a gauge wheel attached to the lower link connecting rods 2, 2 for adjusting the plowing depth.
また、デイスク７に取付けられた掘削刃８群の
中には、所定の間隔で第４図に示す偏心爪１５
が、ボルトナツト９により取付けられている。こ
の偏心爪１５は、掘削刃８の回転軌跡で土壌を掘
削し、ボルトナツト９の損傷を少くするようにし
たものである。 Also, in the group of 8 excavating blades attached to the disk 7, eccentric claws 15 shown in FIG.
is attached with bolts and nuts 9. This eccentric claw 15 excavates the soil along the rotation locus of the excavating blade 8 to reduce damage to the bolt/nut 9.
このような構成のロータリトレンチヤにおいて
は、トラクタに装着されたトレンチヤを掘削しよ
うとする溝に沿わせて位置させ、ゲージホイール
１４，１４を予め掘削深さにセツトし、入力軸
５、ギヤボツクス４、伝動ケース６を介してデイ
スク７掘削刃８を矢印方向に回転し、この回転と
共にトラクタを走行させることにより所定の掘削
幅Ｗ（17.5cm）の狭い幅で所定深さ（65cm程度）
の深い溝が掘削される。 In the rotary trencher having such a configuration, the trencher attached to the tractor is positioned along the trench to be excavated, the gauge wheels 14 are set in advance to the excavation depth, and the input shaft 5 and gear box 4 are By rotating the disc 7 excavation blade 8 in the direction of the arrow through the transmission case 6, and running the tractor along with this rotation, a predetermined depth (approximately 65 cm) is excavated within a narrow predetermined excavation width W (17.5 cm).
A deep trench is excavated.
掘削刃８は、まず縦刃８ａにより土壌を縦方向
に切削し、次いで横刃８ｂが横方向に打込まれて
幅方向に切削するが、特に、横刃８ｂにおいて
は、土壌の切削と共に、屈曲角α，Bn＞B1の関
係での捩曲、曲率Ｒでの刃縁１０などによつて、
切削した土壌を縦刃８ａから連続する側面に沿つ
て揚上しつつ斜め上方に押上げ、掘削刃８が土壌
面GLから上方に抜出すときに土壌を側方に放出
する。従つて、掘削溝内には切削された残存土が
少なくきれいな溝となり、しかも所要動力は小さ
くてすむ。 The excavation blade 8 first cuts the soil in the vertical direction with the vertical blade 8a, and then the horizontal blade 8b is driven in the horizontal direction to cut the soil in the width direction. By bending with the bending angle α, Bn > B 1 , the blade edge 10 with the curvature R, etc.
The cut soil is lifted up from the vertical blade 8a along a continuous side surface and pushed diagonally upward, and when the excavation blade 8 is extracted upward from the soil surface GL, the soil is released laterally. Therefore, there is little remaining soil in the excavated trench, resulting in a clean trench, and less power is required.
また、横刃８ｂから放出される切削土は、反転
板１２に案内されて落下し、排土板１３により掘
削溝の側方に推積される。掘削される土壌が粘性
の強い場合には、横刃８ｂに付着した土壌が反転
板１２にすくい取られるように落下するので、土
塊の持回りが防止され、掘削刃８はもとより、デ
イスク７、伝動ケース６の抵抗も小さくなつて、
負荷の少ない掘削作業が行える。 Further, the cut soil discharged from the horizontal blade 8b is guided by the reversing plate 12 and falls, and is piled up on the sides of the excavated groove by the soil discharge plate 13. If the soil to be excavated is highly viscous, the soil adhering to the horizontal blade 8b will fall and be scooped up by the reversing plate 12, which will prevent the soil clods from turning around and damage not only the excavating blade 8 but also the disc 7 and the transmission. The resistance of case 6 also decreases,
Can perform excavation work with less load.
さらに、掘削刃８，８…間に偏心爪１５が配設
されてあると、掘削溝の幅が広げられ、ボルトナ
ツト９への抵抗が少くなつて耐久性を増大させ
る。 Further, if the eccentric claws 15 are disposed between the excavating blades 8, 8..., the width of the excavated groove is widened, the resistance to the bolt/nut 9 is reduced, and the durability is increased.
［考案の効果］
以上説明したように本考案のトレンチヤによれ
ば、横刃８ｂを、縦刃８ａから連続して掘削土壌
を揚上させ側方に放出するよう屈曲させたので、
掘削土を溝から排出するための排出機構を設ける
ことなく掘削土の排出が行える。また、反転板１
２によつて、掘削刃８の横刃８ｂから放てきさ
れ、あるいは、横刃８ｂに付着して共回りしよう
とする掘削土が掻落されて掘削溝の側方に落下す
るので、粘土質土壌や湿つた土壌の掘削作業でも
連続して負荷を少くして能率的に行うことができ
る。[Effects of the invention] As explained above, according to the trencher of the invention, the horizontal blade 8b is bent so as to continuously lift excavated soil from the vertical blade 8a and release it laterally.
The excavated soil can be discharged without providing a discharge mechanism for discharging the excavated soil from the trench. In addition, the reversal plate 1
2, the excavated soil that is released from the side blade 8b of the excavation blade 8, or that is attached to the side blade 8b and tries to rotate together, is scraped off and falls to the side of the excavation trench, so that clayey soil Even excavation work in wet soil can be carried out efficiently by continuously reducing the load.
第１図は本考案の実施例を示すトレンチヤ全体
の斜視図、第２図は掘削刃の正面図、第３図は同
側面図、第４図は偏心爪の正面図である。
１……ロータリトレンチヤの本体フレーム、２
……ロアリング連結杆、３……トツプマスト、４
……ギヤボツクス、５……入力軸、６……伝動ケ
ース、７……デイスク、８……掘削刃、８ａ……
縦刃、８ｂ……横刃、α……屈曲角、Ｒ……曲
率、１０……掘削幅、９……ボルトナツト、１０
……刃縁、１２……反転板、１３……排土板。
FIG. 1 is a perspective view of the entire trencher showing an embodiment of the present invention, FIG. 2 is a front view of the excavating blade, FIG. 3 is a side view of the same, and FIG. 4 is a front view of the eccentric claw. 1... Body frame of rotary trencher, 2
...Roaring connecting rod, 3...Top mast, 4
...Gearbox, 5...Input shaft, 6...Transmission case, 7...Disc, 8...Drilling blade, 8a...
Vertical blade, 8b... Horizontal blade, α... Bending angle, R... Curvature, 10... Excavation width, 9... Bolt nut, 10
...Blade edge, 12...Reversal plate, 13... Earth removal plate.
Claims (1)
た大径のデイスクの周縁から放射方向に多数の掘
削刃を取付け、所定幅、所定深さの溝を掘削する
ようにしたロータリトレンチヤにおいて、 前記掘削刃を、取付基部から垂直方向に延びる
縦刃と、縦刃から一側横方向に屈曲し、その屈曲
角度を、掘削した土壌が縦刃の側面に沿つて揚上
され、かつ側方に放出するように縦刃の側面に連
続する側面となるよう設定した横刃とにより構成
すると共に、 掘削刃が土壌表面から抜出す第１象限位置に、
横刃に付着して揚上する土壌を掻落す反転板を配
設したことを特徴とするロータリトレンチヤ。[Scope of Claim for Utility Model Registration] A large number of cutting blades are installed radially from the periphery of a large-diameter disk vertically supported at the lower end of the transmission case to excavate a groove of a predetermined width and depth. In the rotary trencher, the excavation blade has a vertical blade extending vertically from the mounting base, and one side of the vertical blade is bent in the horizontal direction, and the bending angle is set so that the excavated soil is along the side surface of the vertical blade. It consists of a horizontal blade whose side surface is continuous with the side surface of the vertical blade so that the excavation blade is lifted up and released laterally, and the excavation blade is located in the first quadrant position where it is extracted from the soil surface.
A rotary trencher characterized by being equipped with an inversion plate that scrapes off soil that is attached to a horizontal blade and lifted up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1663288U JPS64448Y2 (en) | 1988-02-09 | 1988-02-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1663288U JPS64448Y2 (en) | 1988-02-09 | 1988-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63136045U JPS63136045U (en) | 1988-09-07 |
| JPS64448Y2 true JPS64448Y2 (en) | 1989-01-06 |
Family
ID=30808668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1663288U Expired JPS64448Y2 (en) | 1988-02-09 | 1988-02-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS64448Y2 (en) |
-
1988
- 1988-02-09 JP JP1663288U patent/JPS64448Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63136045U (en) | 1988-09-07 |
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