JPS63848Y2 - - Google Patents

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Publication number
JPS63848Y2
JPS63848Y2 JP1981048093U JP4809381U JPS63848Y2 JP S63848 Y2 JPS63848 Y2 JP S63848Y2 JP 1981048093 U JP1981048093 U JP 1981048093U JP 4809381 U JP4809381 U JP 4809381U JP S63848 Y2 JPS63848 Y2 JP S63848Y2
Authority
JP
Japan
Prior art keywords
spiral
soil
top plate
rotating shaft
guide body
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
Application number
JP1981048093U
Other languages
Japanese (ja)
Other versions
JPS57160357U (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1981048093U priority Critical patent/JPS63848Y2/ja
Publication of JPS57160357U publication Critical patent/JPS57160357U/ja
Application granted granted Critical
Publication of JPS63848Y2 publication Critical patent/JPS63848Y2/ja
Expired legal-status Critical Current

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  • Earth Drilling (AREA)

Description

【考案の詳細な説明】 〔考案の目的〕 (産業上の利用分野) 本考案は溝掘機に係り、たとえば暗渠排水溝や
明渠排水溝を開溝する所謂オーガトレンチヤに関
する。
[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a trench excavator, and for example, to a so-called auger trencher for opening underground drainage ditches and open drainage ditches.

(従来の技術) 従来、この種の溝掘機としては、たとえば、実
開昭54−175101号公報に記載されているように、
回動軸の外周に位置をずらして複数の取付板を配
設固定し、この各取付板に多数の分割螺旋片の両
端部を着脱自在に取付けて全体として上記回動軸
の外周に一連の螺旋刃帯を形成した構造が知られ
ている。
(Prior Art) Conventionally, as a trench digger of this kind, for example, as described in Japanese Utility Model Laid-Open Publication No. 54-175101,
A structure is known in which a number of mounting plates are arranged and fixed at offset positions on the outer periphery of a rotating shaft, and both ends of a number of divided helical pieces are detachably attached to each of the mounting plates, so that as a whole, a series of helical blade bands are formed on the outer periphery of the rotating shaft.

(考案が解決しようとする問題点) 上記公報に記載の構造によると、一連の螺旋刃
帯の部分的な摩耗や損傷に対しては、当該部分の
分割螺旋片を交換することにより補修するように
したものであるが、しかし、分割螺旋片の部分的
な摩耗や損傷は、通常は当該部分の分割螺旋片の
刃の部分に生じることが多く、このような場合に
も刃と一体の分割螺旋片の全体を交換しなければ
ならない不具合がある。
(Problems to be solved by the invention) According to the structure described in the above publication, partial wear or damage to a series of spiral blade bands can be repaired by replacing the divided spiral piece in the relevant part. However, local wear and damage of the split spiral piece usually occurs at the blade part of the split spiral piece in that part, and in such cases, the split spiral piece that is integral with the blade There is a problem that the entire spiral piece must be replaced.

また上記公報に記載の構造では一連の螺旋刃帯
による揚土の放出及びこの揚土中に混在する石な
どの硬い塊体による螺旋刃帯の損傷防止について
の対策は何んら考慮されていないという問題もあ
る。
Furthermore, the structure described in the above publication does not consider any measures to prevent the release of soil by a series of spiral blades and the prevention of damage to the spiral blades by hard lumps such as stones mixed in this lifted soil. There is also the problem.

そこで、本考案はこのような点に鑑みなされた
もので、一連の螺旋帯を構成する複数の分割螺旋
片とは別に分割刃片を形成し、摩耗、損傷した場
合には分割螺旋片を残して摩耗、損傷した分割刃
片のみを着脱交換できるようにし、また一連の螺
旋帯による揚土を容易に放出できるとともに、石
などの硬い塊体によつて螺旋帯が損傷することを
防止できるようにした溝掘機を提供することを目
的としたものである。
Therefore, the present invention was devised in view of these points, and a divided spiral piece is formed separately from the plurality of divided spiral pieces that make up a series of spiral bands, and when worn or damaged, the divided spiral piece is left behind. This makes it possible to attach and detach only the divided blade pieces that are worn out or damaged during operation, and to easily release the soil lifted by a series of spiral bands, while also preventing the spiral bands from being damaged by hard lumps such as stones. The purpose of this invention is to provide a trench excavator with the following features.

〔考案の構成〕[Structure of the idea]

(問題点を解決するための手段) 本考案の溝掘機は、機枠の下部に垂直状に設け
られた回転軸の上下方向周側部に互いに位置をず
らして複数のスポーク片を所定間隔毎に放射状に
突設し、この各スポーク片に分割螺旋片の両端部
をそれぞれ取付けて全体的に上記回動軸の上下方
向外周に一連の螺旋帯を形成し、この螺旋帯の各
分割螺旋片の外周縁に分割刃片を着脱可能に取付
けて全体的に一連の螺旋刃体を形成し、上記回動
軸の上部に上記螺旋帯によつて揚土された土壌を
外方に放出する排土翼片を水平状に取付け、上記
機枠の下部に配設された取付基板上に所定の間隔
をおいて配設した複数のボルトを介して円筒状の
ガイド体の天板を上下動自在に係合し、このガイ
ド体の進行方向の側方部に上記排土翼片によつて
排出される土壌を放出する放出口を開口し、上記
複数のボルトの突出端部に螺合されたナツトと上
記天板との間においてそれぞれのボルトに天板を
上下動自在に弾持したコイルスプリングを捲装し
たものである。
(Means for Solving the Problems) The groove excavator of the present invention has a plurality of spoke pieces arranged at predetermined intervals on the circumferential side in the vertical direction of a rotating shaft provided vertically at the bottom of the machine frame. A series of spiral bands are formed on the outer periphery of the rotating shaft in the vertical direction by attaching both ends of the divided spiral pieces to each spoke piece, respectively, to form a series of spiral bands on the outer periphery of the rotating shaft in the vertical direction. Divided blade pieces are removably attached to the outer periphery of the pieces to form a series of spiral blades as a whole, and the soil lifted up by the spiral band is discharged to the upper part of the rotating shaft. The soil removal wing pieces are installed horizontally, and the top plate of the cylindrical guide body is moved up and down via multiple bolts placed at predetermined intervals on the mounting board placed at the bottom of the machine frame. A discharge port for discharging the soil discharged by the soil removal blades is opened in a side part of the guide body in the traveling direction, and is screwed to the protruding ends of the plurality of bolts. Between the nut and the top plate, each bolt is wrapped with a coil spring that supports the top plate so as to be able to move up and down.

(作 用) 本考案の溝掘機によれば、たとえばトラクタを
走行して溝掘機を牽引進行するとともにトラクタ
から入力した動力によつて回動軸24を駆動進行
する。これにより、回動する螺旋刃体32で土壌
を切削しかつこの切削土壌を螺旋帯29によつて
揚土移送し、したがつて螺旋刃体32および螺旋
帯29によつて、土壌は、順次連続的に揚土移送
されるとともにガイド体36内に導かれ、さらに
排土翼片33によつてガイド体36の放出口41
から進行方向の側方部に放てきされる。このよう
にして所定の巾の排水溝が開設される。
(Function) According to the trench excavator of the present invention, for example, a tractor runs to tow the trench excavator, and the rotation shaft 24 is driven and advances by the power input from the tractor. As a result, the soil is cut by the rotating spiral blade 32 and the cut soil is lifted up and transferred by the spiral band 29. Therefore, the soil is sequentially removed by the spiral blade 32 and the spiral band 29. The soil is continuously lifted up and transferred and guided into the guide body 36, and is further transported to the discharge port 41 of the guide body 36 by the soil removal blades 33.
It is thrown to the side in the direction of travel. In this way, a drainage ditch with a predetermined width is established.

(実施例) 以下、本考案の一実施例の構造を添附図面に基
づいて説明する。
(Embodiment) Hereinafter, the structure of an embodiment of the present invention will be described based on the accompanying drawings.

1は機枠で、この機枠1の中間部に入力軸2を
有するミツシヨン3が取付けられている。また、
この機枠1の両端部に連結フレーム4,5が取付
けられ、この連結フレーム4,5の前方に相対し
て平行に突出された連結片4a,5aの先端部に
ロワピン6,7が突設され、この連結片4a,5
aの中間部にマスト8,9が立設され、このマス
ト8,9の互いに近接した上端部に連結部10が
形成されている。またこのマスト8,9の近接上
部に連結片11の一端部がボルト・ナツト12に
よつて連結され、この連結片11の他端部が上記
ミツシヨン3のケース体に突設された突片13に
ボルト・ナツト14によつて連結されている。ま
た、上記連結フレーム4,5の後方に相対して平
行に突出された連結突片4b,5bの間に強度面
板15の両端部がボルト・ナツト16によつて固
着されている。この強度面板15は、コ字形状一
対の面板15a,15bからなり背面からみて下
方に至るにつれ次第に巾を小さくしたほぼ三角形
状に形成され、中間部の上下方向に介在された補
強用の支柱17の上部がボルト・ナツト17aに
よつて固着されている。
Reference numeral 1 denotes a machine frame, and a transmission 3 having an input shaft 2 is attached to an intermediate portion of the machine frame 1. Also,
Connecting frames 4 and 5 are attached to both ends of the machine frame 1, and lower pins 6 and 7 are protruded from the tips of connecting pieces 4a and 5a that protrude parallel to each other in front of the connecting frames 4 and 5, respectively. and these connecting pieces 4a, 5
Masts 8 and 9 are erected at an intermediate portion of a, and a connecting portion 10 is formed at the upper end portions of the masts 8 and 9 close to each other. Further, one end of a connecting piece 11 is connected to the adjacent upper part of the masts 8 and 9 by a bolt/nut 12, and the other end of this connecting piece 11 is connected to a projecting piece 13 that is provided protruding from the case body of the mission 3. are connected to each other by bolts and nuts 14. Further, both ends of the strength face plate 15 are fixed by bolts and nuts 16 between the connecting protrusions 4b and 5b which protrude in parallel to the rear of the connecting frames 4 and 5. This strength face plate 15 is composed of a pair of U-shaped face plates 15a and 15b, and is formed into a substantially triangular shape whose width gradually decreases as it goes downwards when viewed from the back.Reinforcement columns 17 are interposed in the vertical direction in the middle part. The upper part of is fixed by a bolt/nut 17a.

また、上記強度面板15に設けた支柱17の下
端部に先端が先鋭状に形成された床板18の後端
部がボルト・ナツト19によつて水平状に固着さ
れ、この床板18の中間部上に軸受19が設けら
れている。
Further, the rear end of a floor plate 18 having a sharp tip is fixed horizontally to the lower end of the support column 17 provided on the strength face plate 15 with bolts and nuts 19. A bearing 19 is provided at.

つぎに、上記ミツシヨン3の出力軸21に取付
用のフランジ22が形成され、このフランジ22
にオーガ23の回動軸24の上端部に形成された
フランジ25が複数のボルト・ナツトによつて固
着され、この回動軸24の下端部は上記床板18
の軸受20に回動自在に支持されている。
Next, a mounting flange 22 is formed on the output shaft 21 of the transmission 3, and this flange 22
A flange 25 formed at the upper end of the rotating shaft 24 of the auger 23 is fixed by a plurality of bolts and nuts, and the lower end of this rotating shaft 24 is attached to the floor plate 18.
It is rotatably supported by a bearing 20.

つぎに、上記回動軸24の上下方向外側部に互
いに位置をずらして複数のスポーク片26が所定
の間隔毎に放射状に突設され、この各スポーク片
26に弧状に彎曲形成された複数の円弧状の分割
螺旋片27の両端部がそれぞれボルト・ナツト2
8によつて着脱可能に取付けられ、この各分割螺
旋片27によつて全体的に上記回動軸24の上下
方向外周に一連の螺旋帯29が構成されている。
また、この螺旋帯29の各分割螺旋片27の外周
縁上にこれとほぼ同形状の分割刃片30がビス3
1によつて着脱自在に取付けられ、この各分割刃
片30によつて全体的に一連の螺旋刃体32が螺
旋帯29の外周に突出して構成されている。
Next, a plurality of spoke pieces 26 are provided radially projecting at predetermined intervals on the outer side of the rotation shaft 24 in the vertical direction, with positions shifted from each other, and each spoke piece 26 has a plurality of arcuate curved parts. Both ends of the arc-shaped divided spiral piece 27 are connected to bolts and nuts 2, respectively.
8, and the divided spiral pieces 27 collectively form a series of spiral bands 29 around the vertical outer periphery of the rotation shaft 24.
Further, on the outer peripheral edge of each divided spiral piece 27 of this spiral band 29, a divided blade piece 30 having approximately the same shape as this is provided with a screw 3.
1, and each divided blade piece 30 forms a series of spiral blade bodies 32 that protrude from the outer periphery of the spiral band 29 as a whole.

また、上記螺旋刃体32を備えた螺旋帯29の
上端部には上記回動軸24の両側上部に排土翼片
33が直交状に突設され、かつまたこの螺旋帯2
9の下端部は上記軸受29に近接して配設されて
いる。
Further, at the upper end of the spiral band 29 provided with the spiral blade body 32, soil removal blades 33 are provided perpendicularly on the upper sides of the rotating shaft 24, and the spiral band 29
The lower end of the bearing 9 is disposed close to the bearing 29 .

つぎに、上記ミツシヨン3のケース体の下部に
上記出力軸21を回動自在に挿通した取付基板3
4が固着され、この取付基板34の四隅に形成さ
れた各取付孔にボルト35が下方から挿通して上
方に突出され、この各ボルト35を介して全体と
して円筒状に形成されたガイド体36の天板37
が取付基板34上に係合され、この天板37の上
面上に突出した各ボルト35にコイルスプリング
38を介してナツト39が螺着されている。そし
て、上記ガイド体36の筒状体40によつて上記
螺旋帯29の上部および排土翼片33の外周が被
覆され、排土翼片33によつて排土される揚土は
筒状体40の一側部に水平状に突出された放出口
41から放出されるようになつている。
Next, a mounting board 3 is installed in which the output shaft 21 is rotatably inserted into the lower part of the case body of the transmission 3.
4 is fixed to the mounting board 34, and bolts 35 are inserted from below into mounting holes formed at the four corners of this mounting board 34 and protrude upward. top plate 37
is engaged on the mounting board 34, and a nut 39 is screwed onto each bolt 35 protruding from the top surface of the top plate 37 via a coil spring 38. The cylindrical body 40 of the guide body 36 covers the upper part of the spiral band 29 and the outer periphery of the earth removal blades 33, and the lifted soil discharged by the earth removal blades 33 is covered by the cylindrical body 40. The liquid is discharged from a discharge port 41 which is horizontally projected from one side of the tube 40 .

つぎに、上記構造の作用を説明する。 Next, the operation of the above structure will be explained.

連結フレーム4,5のロワピン6,7およびマ
スト8,9の連結部10にトラクタの3点リンク
機構を連結するとともに、入力軸2にトラクタの
動力取出軸部を動力伝達軸を介して連動連結す
る。そして、トラクタを走行して溝掘機を牽引進
行するとともに、トラクタから入力した動力によ
つてミツシヨン3を駆動し、このミツシヨン3の
出力軸21を介してオーガ23の回動軸24を駆
動進行する。
A three-point link mechanism of the tractor is connected to the lower pins 6, 7 of the connecting frames 4, 5 and the connecting parts 10 of the masts 8, 9, and a power extraction shaft of the tractor is interlocked to the input shaft 2 via a power transmission shaft. do. The trench excavator is towed by a tractor, and the transmission 3 is driven by the power input from the tractor, and the rotating shaft 24 of the auger 23 is driven through the output shaft 21 of the transmission 3. do.

これにより、床板18の先鋭状の先端で下層の
比較的硬い土壌が進行方向にそつてほぼ水平状に
切削されるとともに、回動するオーガ23の螺旋
刃体32で土壌を切削しかつこの切削土壌が螺旋
帯29によつて強度面板15に案内されて、揚土
移送され、したがつて螺旋刃体32および螺旋帯
29によつて土壌は順次連続的に切削して揚土移
送されるとともにガイド体36内に導かれ、さら
に排土翼片33によつてガイド体36の放出口4
1から進行方向の側方部に大きく放てきされる。
このようにして所定の巾の排水溝が開設される
が、この際、螺旋刃体32によつて揚土移送され
る土壌中に石などの塊体が混在しこの塊体が排土
翼片33とガイド体36との間に喰込まれてはさ
まる如き状態が生じると、これに応じてガイド体
36は各コイルスプリング38の緩衝作用によつ
て排土翼片33とガイド体36との間が大きく開
き、したがつて、塊体は排土翼片33とガイド体
36との間に喰込まれてはさまることなく、土壌
とともにガイド体36の放出口41から円滑に放
出される。
As a result, the relatively hard soil in the lower layer is cut almost horizontally along the traveling direction by the sharp tip of the floorboard 18, and the soil is cut by the spiral blade 32 of the rotating auger 23. The soil is guided to the strength face plate 15 by the spiral band 29 and is lifted and transferred, and the soil is sequentially and continuously cut and lifted and transferred by the spiral blade 32 and the spiral band 29. The soil is guided into the guide body 36, and the discharge port 4 of the guide body 36 is further guided by the soil removal blades 33.
1, it is thrown largely to the side in the direction of travel.
In this way, a drainage ditch with a predetermined width is opened, but at this time, lumps such as stones are mixed in the soil lifted and transferred by the spiral blade 32, and these lumps are removed by the soil removal blades. 33 and the guide body 36, the guide body 36 will be moved between the earth removal blades 33 and the guide body 36 by the buffering action of each coil spring 38. The clumps are opened widely, and therefore, the lumps are not bitten and caught between the soil removal blades 33 and the guide body 36, and are smoothly discharged from the discharge port 41 of the guide body 36 together with the soil.

〔考案の効果〕[Effect of idea]

本考案によれば、回動軸の上下方向一連の螺旋
帯およびこの螺旋帯の外周縁に突設した一連の螺
旋刃体によつて土壌を確実に切削し、この切削土
壌を円滑に揚土移送して所定の巾と深さからなる
溝を確実に開溝することができる。そして、螺旋
刃体が摩耗、損傷した場合には、その摩耗、損傷
した分割刃片を着脱交換することによつて土壌の
切削機能の低下を防ぎ常にすぐれた切削揚土機能
によつて開溝作業を高能率的に行うことができ、
しかも分割螺旋片とは独立形成した摩耗、損傷し
た分割刃片だけの部分的交換によつて容易に補修
でき初期の目的が十分達成され無理に分割螺旋片
の全体とともに交換する必要がないので極めて経
済的である。また排土翼片によつて切削された土
壌を放出口から進行方向の側方部に大きく確実に
放出することができ、したがつてその排出土壌が
開溝内に落下することを確実に防止することがで
きる。また天板を取付基板上において複数のボル
ト及びこの各ボルトに捲装したコイルスプリング
によつて上下動自在に弾持したので、このガイド
体に対して上方への過負荷が生じると、ガイド体
は各ボルトをガイドとしてコイルスプリングに抗
して上方に移動して過負荷を自動的に回避するこ
とができ、この際、ガイド体は、所定の間隔をお
いて配設された各ボルトをガイドするもので、ガ
イド体が傾いて排土翼片と干渉するようなことが
なく、したがつて、このガイド体の緩衝作用によ
つて、ガイド体内に揚土された石などの硬い塊体
が排土翼片とガイド体との間にはさまつて排土翼
片の回動が阻害されたり、ガイド体や排土翼片が
損傷されることを確実に防止することができ、か
つまたこれら障害物によつて回動軸の回動がそこ
なわれることがないとともに、この回動軸の駆動
源に過負荷が生じることがない。さらに、各ボル
トのナツトを進退調節することによつて作業状況
に応じてそれぞれのコイルスプリングの附勢力を
簡単に調節設定することができる。したがつて、
連続的に開溝作業を行うことができるとともに揚
土された土壌を定めた方向に確実に排出すること
ができる作業性のすぐれた溝掘機を提供すること
ができる。
According to the present invention, soil is reliably cut by a series of spiral bands in the vertical direction of the rotating shaft and a series of spiral blades protruding from the outer periphery of this spiral band, and the cut soil is smoothly lifted. A groove having a predetermined width and depth can be reliably opened by transporting the groove. If the helical blade becomes worn or damaged, the worn or damaged split blade piece can be attached and replaced to prevent the deterioration of the soil cutting function, and the excellent cutting soil lifting function can be used to open trenches. Work can be done with high efficiency,
Moreover, it can be easily repaired by partially replacing only the worn and damaged divided spiral pieces that are formed independently of the divided spiral pieces, and the initial purpose is fully achieved and there is no need to forcefully replace the entire divided spiral piece. Economical. In addition, the soil cut by the soil removal blades can be reliably discharged from the discharge port to the side in the direction of movement, thereby reliably preventing the discharged soil from falling into the open trench. can do. In addition, since the top plate is elastically supported on the mounting board by a plurality of bolts and a coil spring wrapped around each bolt so as to be able to move up and down, if an upward overload is applied to the guide body, the guide body can automatically avoid overload by moving upward against the coil spring using each bolt as a guide. At this time, the guide body guides each bolt arranged at a predetermined interval. This prevents the guide body from tilting and interfering with the soil removal blades, and the cushioning effect of the guide body prevents hard lumps such as stones lifted into the guide body. It is possible to reliably prevent the rotation of the soil removal blades from being caught between the soil removal blades and the guide body, or damage to the guide body or the soil removal blades, and The rotation of the rotation shaft is not impaired by obstacles, and the drive source of the rotation shaft is not overloaded. Further, by adjusting the nut of each bolt forward or backward, the biasing force of each coil spring can be easily adjusted according to the working situation. Therefore,
It is possible to provide a trench excavator with excellent workability that can continuously perform trench-opening work and reliably discharge lifted soil in a predetermined direction.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本考案の一実施例を示すもので、第1図は
溝掘機の一部を切欠いた側面図、第2図は同上平
面図、第3図は同上オーガの横断平面図、第4図
は同上a〜a線の拡大断面図である。 1……機枠、24……回動軸、26……スポー
ク片、27……分割螺旋片、29……螺旋帯、3
0……分割刃片、32……螺旋刃体、33……排
土翼片、34……取付基板、35……ボルト、3
6……ガイド体、37……天板、38……コイル
スプリング、39……ナツト、41……放出口。
The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway side view of the trench excavator, Fig. 2 is a plan view of the same, Fig. 3 is a cross-sectional plan view of the auger, and Fig. 4 is a cross-sectional view of the auger. The figure is an enlarged sectional view taken along line a-a. 1... Machine frame, 24... Rotating shaft, 26... Spoke piece, 27... Divided spiral piece, 29... Spiral band, 3
0...Divided blade piece, 32...Spiral blade body, 33...Earth removal wing piece, 34...Mounting board, 35...Bolt, 3
6... Guide body, 37... Top plate, 38... Coil spring, 39... Nut, 41... Discharge port.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 機枠の下部に垂直状に設けられた回転軸の上下
方向周側部に互いに位置をずらして複数のスポー
ク片を所定間隔毎に放射状に突設し、この各スポ
ーク片に分割螺旋片の両端部をそれぞれ取付けて
全体的に上記回動軸の上下方向外周に一連の螺旋
帯を形成し、この螺旋帯の各分割螺旋片の外周縁
に分割刃片を着脱可能に取付けて全体的に一連の
螺旋刃体を形成し、上記回動軸の上部に上記螺旋
帯によつて揚土された土壌を外方に放出する排土
翼片を水平状に取付け、上記機枠の下部に配設さ
れた取付基板上に所定の間隔をおいて配設した複
数のボルトを介して円筒状のガイド体の天板を上
下動自在に係合し、このガイド体の進行方向の側
方部に上記排土翼片によつて排出される土壌を放
出する放出口を開口し、上記複数のボルトの突出
端部に螺合されたナツトと上記天板との間におい
てそれぞれのボルトに天板を上下動自在に弾持し
たコイルスプリングを捲装したことを特徴とする
溝掘機。
A plurality of spoke pieces are provided radially on the circumferential side in the vertical direction of a rotating shaft provided vertically at the bottom of the machine frame at predetermined intervals with their positions shifted from each other. A series of helical bands are formed on the outer periphery of the rotating shaft in the vertical direction, and divided blade pieces are removably attached to the outer periphery of each divided helical piece of this spiral band to form a series of spiral bands as a whole on the outer periphery of the rotating shaft in the vertical direction. A spiral blade body is formed, and soil removal blades for discharging soil lifted up by the spiral belt to the outside are attached horizontally to the upper part of the rotary shaft, and are arranged at the lower part of the machine frame. The top plate of the cylindrical guide body is engaged with the top plate of the cylindrical guide body so as to be movable up and down through a plurality of bolts arranged at predetermined intervals on the mounting board. Open the discharge port for discharging the soil discharged by the soil removal blades, and attach the top plate to each bolt between the top plate and the nuts screwed to the protruding ends of the plurality of bolts. A trench excavator characterized by being equipped with a freely movable coil spring.
JP1981048093U 1981-04-03 1981-04-03 Expired JPS63848Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1981048093U JPS63848Y2 (en) 1981-04-03 1981-04-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981048093U JPS63848Y2 (en) 1981-04-03 1981-04-03

Publications (2)

Publication Number Publication Date
JPS57160357U JPS57160357U (en) 1982-10-08
JPS63848Y2 true JPS63848Y2 (en) 1988-01-11

Family

ID=29844843

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981048093U Expired JPS63848Y2 (en) 1981-04-03 1981-04-03

Country Status (1)

Country Link
JP (1) JPS63848Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036801U (en) * 1973-08-03 1975-04-17

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54175101U (en) * 1978-05-31 1979-12-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036801U (en) * 1973-08-03 1975-04-17

Also Published As

Publication number Publication date
JPS57160357U (en) 1982-10-08

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