JPS602304Y2 - Excavation device for pipe burial - Google Patents
Excavation device for pipe burialInfo
- Publication number
- JPS602304Y2 JPS602304Y2 JP8696879U JP8696879U JPS602304Y2 JP S602304 Y2 JPS602304 Y2 JP S602304Y2 JP 8696879 U JP8696879 U JP 8696879U JP 8696879 U JP8696879 U JP 8696879U JP S602304 Y2 JPS602304 Y2 JP S602304Y2
- Authority
- JP
- Japan
- Prior art keywords
- earth
- pipe
- sand
- intake port
- cutter head
- 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
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
【考案の詳細な説明】
この考案は土砂の取込み量が制御可能な管理設用掘進装
置に関する。[Detailed description of the invention] This invention relates to an excavation device for management construction that can control the amount of soil taken in.
従来先導管を案内として地中を掘進する管体埋設用掘進
装置にあっては、本体前部に設けたカッタにより掘削し
た土砂を土砂取込み口より取込むようになっているが、
本体が掘進する地中の土砂が自立性のない砂などの場合
、掘削しない部分の土砂も崩落して取込み口に自然流下
し、崩落した部分が空洞化する。Conventional pipe burying equipment that uses a lead pipe as a guide to dig underground uses a cutter installed at the front of the main body to take in the excavated earth and sand from the earth intake port.
If the earth and sand in the ground that the main body excavates is non-self-supporting sand, the earth and sand in the part that is not excavated will also collapse and flow naturally into the intake port, creating a hollow in the collapsed area.
このため管体埋設後に地盤沈下や管体の自沈等が生じる
不具合があった。For this reason, there were problems such as ground subsidence and scuttling of the pipe after the pipe was buried.
この考案はかかる不具合を改善する目的でなされたもの
で、土砂取の込み口に、取込み量を制御する制御機構を
設けた管体埋設用掘進装置を提供して、管体埋設後地盤
沈下や管体の自沈が生じるのを未然に防止しようとする
ものである。This idea was made with the aim of improving this problem, and by providing an excavation device for burying pipes that is equipped with a control mechanism to control the amount of intake at the entrance of the earth and sand removal, it prevents ground subsidence after burying the pipe. This is an attempt to prevent the occurrence of scuttling of the pipe body.
以下この考案を図示の一実施例について詳述する。This invention will be described in detail below with reference to an illustrated embodiment.
図において1は管理設用掘装置の本体で、中心部に中空
な固定軸2が設けられている。In the figure, reference numeral 1 denotes the main body of the excavation equipment for management construction, and a hollow fixed shaft 2 is provided in the center.
固定軸2の基端側は、本体1の後部に設けられた支持体
1aに支持されていると共に、固定軸2の先端側外周部
には、軸受け3を介して回転胴4が支承されている。The proximal end of the fixed shaft 2 is supported by a support 1a provided at the rear of the main body 1, and a rotary drum 4 is supported on the outer circumference of the distal end of the fixed shaft 2 via a bearing 3. There is.
上記回転胴4の後端部にはりングギャ4aが形成されて
いて、このリングギヤ4aに減速歯車5の終段側5aが
噛合されていると共に、減速歯車5の始段側5bは、本
体1後部に収容された油圧モータなどの回転駆動源7に
直結する駆動軸8の歯車9に噛合されている。A ring gear 4a is formed at the rear end of the rotating body 4, and a final stage side 5a of a reduction gear 5 is meshed with this ring gear 4a, and a starting stage side 5b of the reduction gear 5 is connected to the rear end of the main body 1. The drive shaft 8 is meshed with a gear 9 of a drive shaft 8 that is directly connected to a rotary drive source 7 such as a hydraulic motor housed in the drive shaft 8 .
また上記回転胴4の前端には本体1の前部に位置するよ
うに設けられたカッタヘッド10が固着されていて、カ
ッタヘッド10と一体に回転するようになっていると共
に、カッタヘッド10のテーパ状前面にはカッタ11と
、これらカッタ11により掘削された土砂をカッタヘッ
ド10内へ導入する長孔状の開口10aが設けられてい
る。Further, a cutter head 10 provided at the front of the main body 1 is fixed to the front end of the rotary barrel 4, and rotates together with the cutter head 10. The tapered front surface is provided with cutters 11 and an elongated opening 10a for introducing earth and sand excavated by these cutters 11 into the cutter head 10.
さらにカッタヘッド10内には一端を上記固定軸2の先
端に固着された接続管12が設けられている。Further, within the cutter head 10, a connecting pipe 12 is provided, one end of which is fixed to the tip of the fixed shaft 2.
この接続管12はカンタヘッド10の先端部より突出し
た端部に図示しない先導管を接続して、本体1掘進の際
の案内をなすもので、内部にスクリュウコンベヤ13が
収容されている。This connecting pipe 12 connects a leading pipe (not shown) to an end protruding from the tip of the canter head 10 to provide guidance when the main body 1 is excavated, and a screw conveyor 13 is housed inside.
スクリュウコンベヤ13の一端は固定軸2内を通ってカ
ッタヘッド10側へ延出された上記駆動軸8の先端に接
続されていて、この駆動軸8を介して回転駆動源7によ
り回転されると共に、スクリュウコンベヤ13の他端側
は接続管12に接続された図示しない先導管内のスクリ
ュウコンベヤに接続されていて、土砂取込み口12aよ
り取込まれた土砂を先導管を介して前方へ搬出するよう
になっている。One end of the screw conveyor 13 is connected to the tip of the drive shaft 8 that passes through the fixed shaft 2 and extends toward the cutter head 10, and is rotated by the rotary drive source 7 via the drive shaft 8. The other end of the screw conveyor 13 is connected to a screw conveyor in a leading pipe (not shown) connected to the connecting pipe 12, so that the earth and sand taken in from the earth and sand intake port 12a are carried forward through the leading pipe. It has become.
一方上記土砂取込み口12aは接続管12の上部外周面
に開口されていると共に、この土砂取込み口12aには
土砂の取込み量を制御する制御機構14が設けられてい
る。On the other hand, the earth and sand intake port 12a is opened on the upper outer circumferential surface of the connecting pipe 12, and a control mechanism 14 for controlling the amount of earth and sand taken in is provided in the earth and sand intake port 12a.
制御機構14は第3図及び第4図に示すように一側部が
ヒンジ15を介して土砂取込み口12aの開口縁に蝶着
された蓋体16と、この蓋体16を開閉する開閉シリン
17とよりなる。As shown in FIGS. 3 and 4, the control mechanism 14 includes a lid 16 whose one side is hinged to the opening edge of the earth and sand intake port 12a via a hinge 15, and an opening/closing cylinder that opens and closes the lid 16. 17 and more.
蓋体16は土砂取込み口12aよりやや小さく形成され
ていて、土砂取込み口12aを閉鎖した実線位置より、
接続管12内側へ開放するようになっていると共に、こ
れを開閉する開閉シリンダ17はブラケット18を介し
て接続管12の外周部に取付けられている。The lid body 16 is formed to be slightly smaller than the earth and sand intake port 12a, and from the solid line position where the earth and sand intake port 12a is closed,
An opening/closing cylinder 17 that opens to the inside of the connecting tube 12 and opens and closes the connecting tube 12 is attached to the outer circumference of the connecting tube 12 via a bracket 18.
上記開閉シリンダ17内には蓋体16の閉方向へピスト
ン17aを付勢する圧縮ばね19が収容されていると共
に、開閉シリンダ17のボトム側には固定軸2内に形成
された通路2aを介して供給された水圧などの圧力が導
入されていて、遠隔操作により蓋体16の開閉が制御さ
れるようになっている。A compression spring 19 that urges a piston 17a in the closing direction of the lid 16 is housed in the opening/closing cylinder 17, and a passage 2a formed in the fixed shaft 2 is connected to the bottom side of the opening/closing cylinder 17. Pressure such as water pressure supplied by the operator is introduced, and the opening and closing of the lid body 16 is controlled by remote control.
なお図中20は接続管12外周部より突設されたスクレ
ーバで、カッタヘッド10の回転に伴いカッタヘッド1
0内の土砂を土砂取込み口12aへ案内する作用をなす
。In the figure, reference numeral 20 denotes a scraper that protrudes from the outer periphery of the connecting pipe 12, and as the cutter head 10 rotates, the cutter head 1
The function is to guide the earth and sand in the earth and sand into the earth and sand intake port 12a.
また上記実施例では蓋体16を蝶着して、接続管12内
方へ開放するようにしたが、第5図及び第6図に示すよ
うに、接続管12の外周面に沿って軸線方向に開閉する
ように蓋体16を設け、この蓋体16を開閉シリンダ1
7により開閉するように構成してもよいものである。Further, in the above embodiment, the lid body 16 is hinged so that it opens inwardly to the connecting tube 12, but as shown in FIGS. 5 and 6, the lid body 16 is A lid body 16 is provided to open and close the lid body 16.
7 may be configured to open and close.
しかして本体1に後続する管体21の埋設に当り、まず
縦抗内より予定理設路に先導管を布設し、次にこの先導
管の一端に本体1前部に突出した接続管12の一端を接
続する。Therefore, when burying the pipe body 21 that follows the main body 1, first a leading pipe is laid in the planned route from within the vertical shaft, and then one end of the connecting pipe 12 protruding from the front part of the main body 1 is attached to one end of the leading pipe. Connect.
この状態で回転駆動源7によりカッタヘッド10及びス
クリュウコンベヤ13を回転させながら本体1を地中へ
圧入し、これに後続する管体21を順次埋設するもので
あるが、本体1の掘進に伴いカッタ11により掘削され
た土砂は開口10aよりカッタヘッド10内へ、さらに
土砂取込み口12aより接続管12内へ取込まれた後、
スクリュウコンベヤ13により先導管内を経て前方へ搬
出される。In this state, the main body 1 is press-fitted into the ground while rotating the cutter head 10 and screw conveyor 13 by the rotary drive source 7, and the subsequent pipe bodies 21 are buried one after another. After the earth and sand excavated by the cutter 11 is taken into the cutter head 10 through the opening 10a and further into the connecting pipe 12 through the earth and sand intake port 12a,
The screw conveyor 13 carries it forward through the guide pipe.
また地盤が砂地のような場合は、土砂取込み口12aの
開度を遠隔操作により開閉自在な制御機構14の蓋体1
6により調整して取込み量を制限してやればよく、これ
により自然崩落した土砂が取込まれることもないので、
埋設された管体21の周囲に地盤沈下や管体21の自沈
を招く空洞が生じることもない。In addition, when the ground is sandy, the lid 1 of the control mechanism 14 can be used to open and close the opening of the earth and sand intake port 12a by remote control.
6 to limit the amount of intake, and this will prevent naturally fallen soil from being taken in.
A cavity that causes ground subsidence or scuttling of the pipe body 21 does not occur around the buried pipe body 21.
この考案は以上詳述したように、カッタヘッド内の土砂
取込み口に土砂の取込み量を制御する制御機構を設けた
ことから、必要以上に土砂が取込まれることがなく、こ
れによって砂層などに管体を埋設した場合でも地盤沈下
や管体の自沈を招く空洞が管体の周囲に生じるのを未然
に防止できるようになる。As explained in detail above, this device is equipped with a control mechanism that controls the amount of soil taken in at the sand intake port in the cutter head, which prevents more sand from being taken in than necessary. Even if the pipe is buried, it is possible to prevent cavities from forming around the pipe, which could lead to ground subsidence or scuttling of the pipe.
また先導管より排出される土砂量に応じて蓋体の開閉を
遠隔制御することができるので、土質に応じた適確な取
込量の制御も容易である。Furthermore, since the opening and closing of the lid can be remotely controlled according to the amount of soil discharged from the lead pipe, it is easy to control the amount of intake appropriately according to the soil quality.
図面はこの考案の一実施例を示し、第1図は全体的な断
面図、第2図は第1図■−■線に沿う断面図、第3図は
制御機構の拡大図、第4図は開閉シリンダの断面図、第
5図は制御機構の他の実施例の説明図、第6図は第5図
VI−VI線に沿う断面図である。
1は本体、10はカッタヘッド、11はカッタ、12a
は土砂取込み口、13はスクリュウコンベヤ、14は制
御機構、16は蓋体、17は開閉シリンダ。The drawings show one embodiment of this invention, with Fig. 1 being an overall sectional view, Fig. 2 being a sectional view taken along the line ■-■ in Fig. 1, Fig. 3 being an enlarged view of the control mechanism, and Fig. 4. 5 is a sectional view of the opening/closing cylinder, FIG. 5 is an explanatory diagram of another embodiment of the control mechanism, and FIG. 6 is a sectional view taken along line VI-VI in FIG. 1 is the main body, 10 is the cutter head, 11 is the cutter, 12a
13 is a screw conveyor, 14 is a control mechanism, 16 is a lid body, and 17 is an opening/closing cylinder.
Claims (2)
12を介して接続された本体1の先端部にカッタヘッド
10を設け、かつこのカッタヘッド10を回転させなが
ら上記先導管を案内にして地中を掘進すると共に、上記
カッタヘッド10に設けたカッタ11により掘削された
土砂を、上記接続管12の外周面に開口された土砂取込
み口12aより先導管内へ取込み、かつ上記先導管内の
スクリュウコンベヤ13により本体1の前方へ搬出する
ものにおいて、上記土砂取込み口12aに土砂の取込み
量を遠隔操作にて制御可能な制御機構14を設けてなる
管理設用掘進装置。(1) A cutter head 10 is provided at the tip of the main body 1 connected via a connecting pipe 12 to the rear end of a lead pipe laid underground in advance, and the lead pipe is cut while rotating the cutter head 10. While digging underground as a guide, the earth and sand excavated by the cutter 11 provided on the cutter head 10 is taken into the leading pipe through the earth and sand intake port 12a opened on the outer peripheral surface of the connecting pipe 12. An excavation device for management construction, which is carried out to the front of the main body 1 by a screw conveyor 13 in a pipe, and is provided with a control mechanism 14 in the earth and sand intake port 12a that can control the amount of earth and sand taken in by remote control.
より、これを開閉する開閉シリンダ17により制御機構
14を構成してなる実用新案登録請求の範囲第1項記載
の管理設用掘進装置。(2) Lid body 16 provided to cover the earth and sand intake port 12a
Accordingly, the control mechanism 14 is constituted by an opening/closing cylinder 17 for opening and closing the control mechanism 14.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8696879U JPS602304Y2 (en) | 1979-06-27 | 1979-06-27 | Excavation device for pipe burial |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8696879U JPS602304Y2 (en) | 1979-06-27 | 1979-06-27 | Excavation device for pipe burial |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS568696U JPS568696U (en) | 1981-01-24 |
JPS602304Y2 true JPS602304Y2 (en) | 1985-01-22 |
Family
ID=29320208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8696879U Expired JPS602304Y2 (en) | 1979-06-27 | 1979-06-27 | Excavation device for pipe burial |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS602304Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5705672B2 (en) * | 2011-07-15 | 2015-04-22 | 三和機材株式会社 | Reconstruction promotion method and equipment for existing pipes |
-
1979
- 1979-06-27 JP JP8696879U patent/JPS602304Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS568696U (en) | 1981-01-24 |
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