JPH02213583A - Fluid spray type horizontal hole drilling device - Google Patents
Fluid spray type horizontal hole drilling deviceInfo
- Publication number
- JPH02213583A JPH02213583A JP3110689A JP3110689A JPH02213583A JP H02213583 A JPH02213583 A JP H02213583A JP 3110689 A JP3110689 A JP 3110689A JP 3110689 A JP3110689 A JP 3110689A JP H02213583 A JPH02213583 A JP H02213583A
- Authority
- JP
- Japan
- Prior art keywords
- auger
- chuck
- sliding block
- rotary
- hole
- 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
- 239000012530 fluid Substances 0.000 title claims abstract description 24
- 238000005553 drilling Methods 0.000 title claims description 26
- 239000007921 spray Substances 0.000 title 1
- 210000000078 claw Anatomy 0.000 claims abstract description 19
- 230000006866 deterioration Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 55
- 238000009412 basement excavation Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- QGTYWWGEWOBMAK-UHFFFAOYSA-N chlormephos Chemical compound CCOP(=S)(OCC)SCCl QGTYWWGEWOBMAK-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、地下に埋設されるガス管や水道管等の流体用
管、または電力線、光や電気の信号線。Detailed Description of the Invention (Industrial Application Field) The present invention relates to fluid pipes such as gas pipes and water pipes buried underground, power lines, and optical and electric signal lines.
電力線等を収容する管を施工する横穴、あるいは水を排
出する横穴のように、比較的小径の横穴を掘進する横穴
掘削装置において、オーガの先端から水等の流体を噴出
させながら掘削を行なう流体噴出式横穴掘削装置に関す
る。In horizontal hole drilling equipment that excavates relatively small diameter horizontal holes, such as horizontal holes for constructing pipes to accommodate power lines, etc., or horizontal holes for discharging water, fluid that performs excavation while spouting fluid such as water from the tip of the auger. Regarding a blowout type horizontal hole drilling device.
（従来の技術）
本発明者等は、前記した地下埋設管用横穴を、道路等に
溝を掘削することなく掘削しうる横穴掘削装置を開発し
ている。この横穴掘削装置は、オーガを把持する回転チ
ャック装置を有する回転駆動装置をガイド枠上にて往復
させ、かつ往復動に伴なってスクリュー羽根を有するオ
ーガをねじ式に継足しながら掘削を行なうものである。(Prior Art) The present inventors have developed a horizontal hole drilling device capable of excavating the above-mentioned horizontal hole for underground pipes without excavating a trench in a road or the like. This horizontal hole drilling device reciprocates a rotary drive device having a rotary chuck device for gripping an auger on a guide frame, and excavates while screwing an auger having screw blades along with the reciprocating movement. It is.
このような横穴掘削装置による掘削の際に、掘削対象と
なる地質か粘着性の大きい粘土質や硬土質の土丹層等の
場合には掘削抵抗か大となり、穴の方向か曲がったり、
掘削不能になるｓ態か発生することかある。このような
事態を打開するため、本発明者は、既に、オーガの先端
より水を噴出して掘削土壌を軟弱にしながら掘削する注
水式の横穴掘削装置を開発している。この給水装置は、
オーガの中心に通水孔を貫設し、オーガの継足し部と、
オーガと前記回転チャック装置の取付は筒との間にシー
ルリングを介在させ、先端のオーガの掘削ビットに水の
噴出口を設け、かつ、給水源からの水を前記オーガ内に
供給する通路を、前記回転駆動装置および回転チャック
装置に設けたものである。When drilling with such a horizontal hole drilling device, if the geology to be drilled is clayey or hard soil with a high degree of cohesiveness, such as the Dotan layer, the drilling resistance will be large and the direction of the hole may curve or bend.
A situation may occur in which excavation becomes impossible. In order to overcome this situation, the present inventor has already developed a water-injection type horizontal hole excavation device that ejects water from the tip of an auger to soften excavated soil while excavating. This water supply device is
A water hole is installed in the center of the auger, and the joint part of the auger and
The auger and the rotary chuck device are installed by interposing a seal ring between the cylinder and providing a water spout at the cutting bit of the auger at the tip, and a passage for supplying water from a water supply source into the auger. , which is provided in the rotary drive device and the rotary chuck device.
（発明か解決しようとする課題）
しかしこの先に開発したものは、オーガ継足しの際に、
先行オーガを回転チャック装置から外すと、給水ポンプ
を停止させても、地上から回転駆動装置に到る給水ホー
ス等に残っている水が回転チャック装置に設けたオーガ
との接続口（給水口）から漏出し、横穴掘削装置を設置
する縦穴あるいは溝の底部か水びたしになり、作業環境
を悪化させるという問題点かあった。(Invention or problem to be solved) However, what was developed later was that when adding an auger,
When the leading auger is removed from the rotary chuck device, even if the water supply pump is stopped, the water remaining in the water supply hose, etc. that runs from the ground to the rotary drive device will drain into the connection port (water supply port) with the auger provided on the rotary chuck device. There was a problem in that the water leaked out and flooded the bottom of the vertical hole or trench where the horizontal hole drilling equipment was installed, worsening the working environment.
本発明は、−ヒ記の問題点に鑑み、オーガ継足しの際に
流体ホース等に残留している流体か縦穴あるいは溝の底
部に漏出することかなく、また噴出流体によって横穴が
乱されることのない流体噴出式横穴掘削装置を提供する
ことを目的とするものである。In view of the problem described in (a), the present invention prevents the fluid remaining in the fluid hose etc. from leaking to the bottom of the vertical hole or groove when the auger is added, and the horizontal hole is not disturbed by the ejected fluid. The object of the present invention is to provide a fluid jetting type horizontal hole drilling device that will never cause problems.
（課題を解決するための手段）
この目的を達成するため、本発明は、オーガの回転駆動
装置に設けた回転チャック装置により継足し弐オーガを
把持し、前記回転駆動装置なガイド枠上にて往復させる
と共に、オーガを継足しながら横穴を掘削する。装置で
あって、前記回転チャック装置か、前記回転駆動装置内
にアクチュエータにより前進、後退されるように収容さ
れた摺動ブロックと、モータにより回転される回転ツロ
ツクと、該回転ブロックに放射状に摺動自在に装着され
ると共に、前記摺動ブロックの前進、後退に伴なって開
閉される複数個のチャック爪とからなるものにおいて、
前記回転ブロックに、オーガ内を通過させてオーガ先端
より噴出させる流体を通過させる孔を設け、鎖孔の一部
に開閉弁を設け、該開閉弁を前記摺動ブロックに連動さ
せ。(Means for Solving the Problem) In order to achieve this object, the present invention grips the second auger by a rotary chuck device provided on the rotary drive device of the auger, and holds the second auger on the guide frame of the rotary drive device. While reciprocating, a horizontal hole is excavated while adding an auger. The device includes a sliding block housed in the rotary chuck device or the rotary drive device so as to be moved forward and backward by an actuator, a rotary block rotated by a motor, and a sliding block radially slidable on the rotary block. A plurality of chuck claws are movably mounted and are opened and closed as the sliding block advances and retreats,
The rotary block is provided with a hole through which fluid passes through the auger and is ejected from the auger tip, an on-off valve is provided in a part of the chain hole, and the on-off valve is interlocked with the sliding block.
チャック爪開、閉時に開閉弁がそれぞれ閉、開となるよ
うに構成したことを特徴とする。It is characterized in that the opening/closing valve is configured to close and open when the chuck jaw opens and closes, respectively.
（実施例） 以下本発明の一実施例を図面により説明する。(Example) An embodiment of the present invention will be described below with reference to the drawings.
第２図３よび第３図は本発明による横穴掘削システムの
一実施例の全体構成を示し、第４図は横穴掘削装置の平
面断面図である。第２図ないし第４図において、ｌは地
下配管、２は地下配管ｌに到る深さに掘削した縦穴、３
は該縦穴２に嵌め込んたケーシング、４は該ケーシング
３内に昇降自在に装着する横穴掘削装置、５はケーシン
グ３上に設置した操作装置、６は地面上に設置した給水
装置である。ケーシング３および操作装置５のフレーム
８には、対向するように２木のガイドレール７が設けて
あり、横穴掘削装Ｍ４を構成する円形フレーム９の左右
の柱部の上下には、前記ガイドレール７に沿って転動さ
せるガイトローラ１０か取付けである。また、門形フレ
ーム９の下部にはガイド枠１１が取付けられている。FIGS. 2, 3, and 3 show the overall configuration of an embodiment of the horizontal hole drilling system according to the present invention, and FIG. 4 is a plan sectional view of the horizontal hole drilling apparatus. In Figures 2 to 4, l is an underground pipe, 2 is a vertical hole excavated to a depth that reaches the underground pipe l, and 3
4 is a casing fitted into the vertical hole 2, 4 is a horizontal hole drilling device installed in the casing 3 so as to be able to move up and down, 5 is an operating device installed on the casing 3, and 6 is a water supply device installed on the ground. Two guide rails 7 are provided on the casing 3 and the frame 8 of the operating device 5 so as to face each other, and the guide rails 7 are provided above and below the left and right columns of the circular frame 9 that constitutes the horizontal hole drilling equipment M4. A guide roller 10 is installed to roll along the line 7. Further, a guide frame 11 is attached to the lower part of the portal frame 9.
前記ガイド枠１１には、ケーシング３に設けた開口部１
２に向かうように、平行をなすガイドレール１３が固設
され、オーガ１４の回転駆動装置１５は、その左右に２
個ずつ取付けられたガイドローラ１６が前記ガイドレー
ル１３に沿って転勤自在に係合されることにより、ガイ
ド枠１１上に移動自在に設置される。前記回転駆動装δ
１５は、前部にオーガ１４の尾端１４ａを把持する回転
チャック装置１７を有し、かつオーガ１４を回転させる
回転用油圧モータ１８を有する。The guide frame 11 has an opening 1 provided in the casing 3.
A parallel guide rail 13 is fixedly installed so as to face the auger 14, and the rotary drive device 15 of the auger 14 has two parallel guide rails 13 on the left and right.
The individually attached guide rollers 16 are movably installed on the guide frame 11 by being engaged along the guide rail 13 so as to be movable. The rotational drive device δ
15 has a rotary chuck device 17 at the front portion that grips the tail end 14a of the auger 14, and a rotation hydraulic motor 18 that rotates the auger 14.
第１図は回転駆動装置ｉ１５の内部構成を示す断面図で
あり、オーガ回転用油圧モータ１８の出力軸に取付けた
駆動歯車３０は、ケース３１に回転自在に取付けた受歯
車３２と噛合させ、該受歯車３２は、ケース３１に鍔３
５ａをボルト７４によい固定した筒体３５に軸受７５を
介して回転自在に外嵌している。３３は前記鍔３５ａに
ボルト７６により取付けたチャック爪開閉用油圧シリン
ダてあり、該油圧シリンダ３３のピストンロッド３４は
前記筒体３５に摺動自在に貫通し、該ピストンロッド３
４の先端には軸受３６を介して摺動ブロック４０が回転
自在に取付けである。前記受歯車３２には、ボルト３７
によりチャック爪３９を保持する後回転ブロック３８お
よび前回転プロ・ンク５４（これら前後の回転ブロック
５４．３８は一体のブロックとして構成してもよい。）
が結合され、該これら前後の回転ブロック５４．３８に
は、第５図に示すように、３個のチャック爪３９か放射
状に摺動自在に装着されている。前記後回転ブロック３
８内には、前記ピストンロッド３４の軸心方向に摺動自
在に前記摺動ブロック４０か収容されており、第１図、
第６図に示すように、該摺動ブロック４０の周囲に設け
た傾斜％＠ ４０ ａを前記各チャック爪３９の逆Ｔ字
形傾斜摺動脚３９ａに摺動自在に係合させてなり、前記
油圧モータ１８の回転によって前記歯車３０．３１と、
後回転ブロック３８、チャック爪３９および摺動ブロッ
ク４０等からなる回転チャック装置１７が回転し、また
、油圧シリンダ３３の伸縮によって摺動ブロック４０が
動き、チャック爪３９が開閉するように構成されている
。なお、本例においては、ピストンロッド３４の前進に
よりチャック爪３９が開くように構成されているが、こ
の反対に、摺動ブロック４０の傾斜面の向きを反対にす
ることにより、ピストンロッド３４の前進によりチャッ
ク爪３９が閉じる構成とすることも可能である。FIG. 1 is a cross-sectional view showing the internal structure of the rotary drive device i15, in which a drive gear 30 attached to the output shaft of the auger rotation hydraulic motor 18 meshes with a receiving gear 32 rotatably attached to the case 31. The receiving gear 32 has a flange 3 on the case 31.
5a is rotatably fitted onto the cylindrical body 35 fixed to a bolt 74 via a bearing 75. Reference numeral 33 denotes a hydraulic cylinder for opening and closing the chuck claw attached to the collar 35a with bolts 76. A piston rod 34 of the hydraulic cylinder 33 slidably penetrates the cylinder 35, and the piston rod 3
A sliding block 40 is rotatably attached to the tip of 4 via a bearing 36. A bolt 37 is attached to the receiving gear 32.
A rear rotation block 38 and a front rotation block 54 that hold the chuck jaws 39 (these front and rear rotation blocks 54 and 38 may be constructed as an integrated block).
As shown in FIG. 5, three chuck claws 39 are attached to the front and rear rotating blocks 54, 38 so as to be slidable radially. Said rear rotation block 3
8, the sliding block 40 is housed so as to be slidable in the axial direction of the piston rod 34, and as shown in FIG.
As shown in FIG. 6, the slope %@40a provided around the sliding block 40 is slidably engaged with the inverted T-shaped sloped sliding leg 39a of each of the chuck claws 39. Rotation of the hydraulic motor 18 causes the gears 30, 31 to
The rotary chuck device 17 consisting of a rear rotation block 38, a chuck claw 39, a sliding block 40, etc. rotates, and the sliding block 40 moves due to the expansion and contraction of the hydraulic cylinder 33, so that the chuck claw 39 opens and closes. There is. In this example, the chuck claws 39 are configured to open as the piston rod 34 moves forward; however, by reversing the direction of the inclined surface of the sliding block 40, the piston rod 34 opens. It is also possible to have a configuration in which the chuck claws 39 are closed by forward movement.
また、第３図、第４図に示すように、前記回転駆動装置
１５の側部には、該回転駆動装置１５を往復動させる横
行用油圧モータ１９を有し、該横行用油圧モータ１９の
出力軸に取付けたビニオン２０を前記ガイドレール１３
に平行に設けたラック２１に噛合させ、該油圧モータ１
９の正逆回転により回転駆動装置１５か往復動するよう
に構成されている。Further, as shown in FIGS. 3 and 4, a traverse hydraulic motor 19 for reciprocating the rotary drive device 15 is provided on the side of the rotary drive device 15. The binion 20 attached to the output shaft is connected to the guide rail 13.
The hydraulic motor 1 is engaged with a rack 21 provided parallel to the
The rotary drive device 15 is configured to reciprocate by the forward and reverse rotation of the rotary shaft 9.
第４図において、２２はガイド枠１１の前部に取付けら
れた固定チャック装置であり、これはオーガＪ４を抜取
る際、さらに必要であればオーガ継足しの際に一部か地
中に埋没している先行オーガ１４の尾端１４ａを把持し
ておくものである。該固定チャック装置２２は、オーガ
１４の尾端１４ａを把持、解放可能となるように開閉自
在に取付けられた一対の爪２３．２４と、左右の開閉用
油圧シリンダ２５．２６と、その各ビスロンロッドの動
きを前記爪２３．２４にそれぞれ伝達するリンク機構２
７．２８とからなる。In Fig. 4, 22 is a fixed chuck device attached to the front part of the guide frame 11, and this is partially buried in the ground when the auger J4 is removed and, if necessary, when the auger is added. This is to hold the tail end 14a of the leading auger 14 that is being held. The fixed chuck device 22 includes a pair of claws 23 and 24 that are attached to open and close the tail end 14a of the auger 14 so as to be able to grip and release it, left and right hydraulic cylinders 25 and 26 for opening and closing, and their respective Vislon rods. a link mechanism 2 that transmits the movement of
7.28.
第２図、第３図に示すように、操作装置５は、前記オー
ガ回転用油圧モータ１８、チャック爪開閉用油圧シリン
ダ３３および固定チャック装置２２の油圧シリンダ２５
．２６を操作するスイッチ類からなる操作盤４２と、横
行用油圧モータ１９を操作する操作レバー４３と、横穴
掘削装置４を昇降させるウィンチ４４と、横穴掘削装置
４の各アクチュエータにつながる油圧ホース４５や照明
灯やリミットスイッチ等につながるケーブル類をそれぞ
れ巻取るリール４６．４７と、作業車等（図示せず）に
搭載した電源や油圧源と横穴掘削装置４のアクチュエー
タとの間に挿入された切換弁等を収容した制御装置４８
とを有する。As shown in FIGS. 2 and 3, the operating device 5 includes the auger rotation hydraulic motor 18, the chuck claw opening/closing hydraulic cylinder 33, and the hydraulic cylinder 25 of the fixed chuck device 22.
．． 26, an operating lever 43 for operating the traverse hydraulic motor 19, a winch 44 for raising and lowering the horizontal hole drilling device 4, and a hydraulic hose 45 connected to each actuator of the horizontal hole drilling device 4. A switch inserted between reels 46 and 47 for winding cables connected to lighting lights, limit switches, etc., the power source or hydraulic power source mounted on a work vehicle, etc. (not shown), and the actuator of the horizontal hole drilling device 4. Control device 48 containing valves etc.
and has.
次にオーガ１４の先端より水を噴出させる給水系統につ
いて説明する。第１図、第２図に示すように、各オーガ
１４はその尾端１４ａが雌ねじに形成され、先端１４ｂ
はその雌ねじに螺合する雄ねじに形成されたもので、各
オーガ１４の中心には通水孔５０を貫設している。また
、オーガ１４の継足し部にゴム等からなるシールリング
５１を嵌め、オーガを継足した状態においては、先行オ
ーガ１４Ａ（図示例は先端の掘削ビット１４Ａか示され
ているが、中継オーガ１４間についても同様）と後行オ
ーガ１４との間でシールリング５１か挟持されてシール
作用が発揮される。Next, a water supply system for spouting water from the tip of the auger 14 will be described. As shown in FIGS. 1 and 2, each auger 14 has a tail end 14a formed with a female thread, and a tip 14b.
is formed on a male thread that is screwed into the female thread, and a water passage hole 50 is provided in the center of each auger 14. In addition, a seal ring 51 made of rubber or the like is fitted to the connecting part of the auger 14, and when the auger is connected, the leading auger 14A (the illustrated example shows the cutting bit 14A at the tip, but the relay auger 14A is shown). The seal ring 51 is held between the rear auger 14 and the rear auger 14, and the sealing action is exerted.
第１図、第５図に示すように、前回転ブロック５４の中
央には、オーガ１４の尾端の雌ねじ孔を嵌合する円筒状
の取付は筒５５を一体に有し、該電材は筒５５の根本部
周囲には、ゴム等からなるシールリング５６か嵌合して
あり、回転チャック装ａｌｔ１７に把持されるオーガ１
４の尾端と該取付け筒５５との間で該シールリング５６
か挟持されてシール作用が発揮される。As shown in FIGS. 1 and 5, the center of the front rotation block 54 has a cylindrical mounting tube 55 that fits into the female screw hole at the tail end of the auger 14, and the electric material is connected to the tube. A seal ring 56 made of rubber or the like is fitted around the root portion of the auger 1 held by the rotary chuck device alt17.
4 and the mounting tube 55.
The sealing effect is exerted by being pinched.
回転駆動装置１１５のケース３１と、その中の回転体に
は、オーガ１４に対して水を供給する通路が設けられて
いる。その通路は、ケース３１に設けられ、給水ホース
５７に接続金具５８を介して接続される通水孔５９と、
該通水孔５９に連通し、ケース３１の内面の受歯車３２
との摺動面に周方向に設けた溝６０と、該溝６０に連通
ずるように受歯車３２に半径方向に設けた通水孔６１と
、該通水孔６１に連通ずるように受歯車３２゜後回転ブ
ロック３８および前回転ブロック５４に軸方向に設けた
通水孔６２と、該通水孔６２と前記取付は筒５５の中心
の通水孔５０Ｃとの間を連通させるように前回転ブロッ
ク５４に半径方向に設けた通水孔６３とからなる。A passage for supplying water to the auger 14 is provided in the case 31 of the rotary drive device 115 and the rotating body therein. The passage includes a water hole 59 provided in the case 31 and connected to the water supply hose 57 via a connecting fitting 58;
The receiving gear 32 on the inner surface of the case 31 communicates with the water passage hole 59.
A groove 60 provided in the circumferential direction on the sliding surface of the receiving gear 32, a water passage hole 61 provided in the radial direction in the receiving gear 32 so as to communicate with the groove 60, and a water passage hole 61 provided in the receiving gear 32 in the radial direction so as to communicate with the water passage hole 61. 32° A water passage hole 62 provided in the axial direction in the rear rotation block 38 and the front rotation block 54, and a water passage hole 62 provided in the front rotation block 54 in the front so as to communicate between the water passage hole 62 and the water passage hole 50C in the center of the cylinder 55. It consists of water holes 63 provided in the rotation block 54 in the radial direction.
７７は前記取付は筒５５と前記ピストンロット３４の先
端に螺合等により固定されたロフト状の弁体７８とによ
り構成される開閉弁であり、実線で示すように、ピスト
ンロッド３４と共に摺動ブロック４０か後退してチャッ
ク爪３９か閉じている時、すなわちオーガ１４の尾端１
４ａがチャック爪３９により把持される際には取付は筒
５５の通水孔５０Ｃは開き、ピストン口・ンド３４を前
進させてチャック爪３９を開いている状態においては、
弁体７８が２点鎖線で示すように取付は筒５５の通水孔
５０ｃを閉塞する構成、すなわち、摺動ブロック４０に
連動して開閉弁７７が開閉される構成となている。Reference numeral 77 designates an on-off valve that is constructed of the cylinder 55 and a loft-shaped valve body 78 that is fixed to the tip of the piston rod 34 by screwing or the like, and as shown by the solid line, it slides together with the piston rod 34. When the block 40 is retracted and the chuck claw 39 is closed, that is, the tail end 1 of the auger 14
4a is gripped by the chuck claw 39, the water passage hole 50C of the cylinder 55 is opened, and when the piston port 34 is moved forward and the chuck claw 39 is opened,
As shown by the two-dot chain line, the valve body 78 is mounted so as to close the water passage hole 50c of the cylinder 55, that is, the on-off valve 77 is opened and closed in conjunction with the sliding block 40.
５３はオーガ１４の尾端１４ａの雌ねじ孔の奥部に取付
けられたゴム製逆止弁である。53 is a rubber check valve attached to the inner part of the female screw hole of the tail end 14a of the auger 14.
第２図に示すように、給水装置６は、台６５上に設置さ
れた電動式または油圧式モータ６６と、これにより駆動
されるねしポンプ等の給水ポンプ６７と、掘削土砂の質
により水の粘度等を変えるベントナイト等の安定液溶解
装置６Ｂ （６９は攪拌翼、７０は攪拌用モータである
。）とを有し、給水ポンプ６７の吐出側に接続された給
水ホース７１には止め弁７２を有し、該給水ホース７１
は、前記操作装置５のフレーム８上に設置されたリール
７３の静止軸側に接続され、前記給水ホース５７は該リ
ール７３に巻かれており、該リール７３にはぜんまいば
ね等の張力付与装置（図示せず）か設けである。As shown in FIG. 2, the water supply device 6 includes an electric or hydraulic motor 66 installed on a table 65, a water supply pump 67 such as a screw pump driven by the electric or hydraulic motor 66, and water supply depending on the quality of the excavated soil. The water supply hose 71 connected to the discharge side of the water supply pump 67 has a stop valve. 72, the water supply hose 71
is connected to the stationary shaft side of a reel 73 installed on the frame 8 of the operating device 5, the water supply hose 57 is wound around the reel 73, and the reel 73 is equipped with a tensioning device such as a spring spring. (not shown).
この装置において、オーガ継足しの際には横穴掘削装置
４をウィンチ４４により引上げ、回転駆動装置１５を後
退させた状態において１次のオーガ１４の尾端１４ａの
ねし孔を前記取付は筒５５に嵌合し、回転チャック装置
１７を閉じることにより、オーガ１４を把持し、横穴掘
削装置４をケーシング３内のストッパ（図示せず）によ
り係止させるまで降下させ、地中に一部埋設されている
先行オーガ１４に対し、横行用油圧モータ１９を作動さ
せて回転駆動装置１５を前進させると共に、オーガ回転
用油圧モータ１８を作動させてオーガ１４を正転させる
ことにより、後行オーガ１４の先端１４ｂの雄ねじを先
行オーガ１４の尾端１４ａの雌ねじに螺合する。続いて
、止め弁７２を開け、給水ポンプ６７を作動させること
により、オーガ１４の先端の掘削ビット１４Ａの噴出口
５０Ｂから、給水圧力により、逆止弁５３の弾性に抗し
て水を流出させ、オーガ１４の先端に対向する土砂を軟
弱化しながら掘削を行なう。従って、粘土質の掘削を行
なう場合においても、オーガ１４を直進させて掘削を行
なうことが可能となる。なお、このとき、安定液溶解装
置６８における安定液の混合量を調整することにより、
土砂に応じた粘度の水（安定液）か供給され、安定掘削
か回走となる。In this device, when adding an auger, the horizontal hole drilling device 4 is pulled up by the winch 44, and with the rotary drive device 15 retracted, the screw hole in the tail end 14a of the primary auger 14 is inserted into the tube 55. , and by closing the rotary chuck device 17, the auger 14 is gripped and the horizontal hole drilling device 4 is lowered until it is stopped by a stopper (not shown) in the casing 3. With respect to the leading auger 14, the traverse hydraulic motor 19 is operated to advance the rotary drive device 15, and the auger rotation hydraulic motor 18 is operated to rotate the auger 14 in the forward direction. The male thread at the tip 14b is screwed into the female thread at the tail end 14a of the leading auger 14. Next, by opening the stop valve 72 and operating the water supply pump 67, the water supply pressure causes water to flow out from the spout 50B of the drilling bit 14A at the tip of the auger 14 against the elasticity of the check valve 53. , excavation is performed while softening the earth and sand facing the tip of the auger 14. Therefore, even when excavating clay, it is possible to excavate by moving the auger 14 straight forward. At this time, by adjusting the mixing amount of the stabilizing liquid in the stabilizing liquid dissolving device 68,
Water (stabilizing liquid) with a viscosity depending on the soil and sand is supplied, allowing stable excavation or turning.
前記のようにオーガ１４の継足しを行なう際には、回転
チャック装置１７による先行オーガ１４の尾端１４ａの
把持を解き、取付は筒５５から尾端１４ａを外すが、チ
ャック爪２９を開く時には、ピストンロッド３４および
摺動ブロック４０を前進させるから、これに連動して、
弁体７８か取付は筒５５を閉塞するため、給水ホース５
７等に残っている木が通水孔５０ｃから縦穴２の底部に
漏出することがなく、縦穴底部が水びたしになることか
防がれる６
また、本実施例においては、逆止弁５３をオーガ尾端に
設けているので、給水休止時にオーガ１４内の水か逆流
して縦穴２の底部に漏出するおそれがない。また、各オ
ーガ１４の継足し部にシールリング５１を設けたので、
オーガ１４間の継足し部からの給水の漏洩がなく、また
、回転チャック装置１７の取付は筒５５の根本部にもシ
ールリング５６を設けたので、回転チャック装置１７の
部分からの漏洩も防止され、掘削ビット１４Ａから有効
に給水できる。When adding the auger 14 as described above, the grip of the tail end 14a of the leading auger 14 by the rotary chuck device 17 is released, and the tail end 14a is removed from the cylinder 55 for installation, but when opening the chuck claw 29, , since the piston rod 34 and the sliding block 40 are moved forward, in conjunction with this,
The valve body 78 is installed to close the cylinder 55, so the water supply hose 5
The wood remaining in the vertical hole 2 will not leak from the water hole 50c to the bottom of the vertical hole 2, and the bottom of the vertical hole will be prevented from becoming soaked with water.6 In addition, in this embodiment, the check valve 53 is Since it is provided at the tail end, there is no risk that the water in the auger 14 will flow backwards and leak into the bottom of the vertical hole 2 when the water supply is stopped. In addition, since a seal ring 51 is provided at the joint part of each auger 14,
There is no leakage of water supply from the joint between the augers 14, and since a seal ring 56 is also provided at the base of the tube 55 for mounting the rotary chuck device 17, leakage from the rotary chuck device 17 is also prevented. Therefore, water can be effectively supplied from the drilling bit 14A.
以上本発明を実施例により説明したが、本発明は既設の
マンホール等の縦穴や溝内に据置き式あるいは昇降式に
設置するものや、オーガを自動的に継足して掘削を行な
う場合にも適用できる。また、摺動ブロック４０に連動
して開閉弁７７を開閉する機構は、摺動ブロック４０あ
るいはピストンロッド３４等に弁体７８を直着けするの
ではなく、摺動ブロック４０の傾斜面を利用してばねで
付勢された弁体をばねの力に抗して移動させる等、摺動
ブロック４０等と別体に設けられた弁体な移動させる構
成としてもよい。また、オーガ１４の先端から水を噴出
するのではなく、圧搾空気と共に水を噴出させる構成も
採用される。また、本発明は、噴出流体として水以外に
空気等の気体を用いても良く、この場合には、掘削中断
中における流体噴出による横穴の乱れを防止することか
でき、また、前記開閉弁と連動させて流体供給用駆動装
置の作動、停止を行なわせることにより、動力の損失が
低減される。また、各構成部材の構造、組合わせ等につ
いて、上記実施例以外に本発明の要旨を逸脱しない範囲
で種々の変更、付加が可使である。Although the present invention has been described above with reference to embodiments, the present invention can also be applied to equipment that is installed in a vertical hole or trench such as an existing manhole in a stationary or elevating manner, or when excavation is performed by automatically adding an auger. Applicable. Furthermore, the mechanism for opening and closing the on-off valve 77 in conjunction with the sliding block 40 utilizes the inclined surface of the sliding block 40, rather than attaching the valve body 78 directly to the sliding block 40 or the piston rod 34, etc. It is also possible to use a configuration in which a valve body provided separately from the sliding block 40 or the like is moved, such as by moving a valve body urged by a spring against the force of the spring. Furthermore, instead of ejecting water from the tip of the auger 14, a configuration is also adopted in which water is ejected together with compressed air. Furthermore, in the present invention, a gas such as air may be used in addition to water as the jetting fluid, and in this case, it is possible to prevent disturbances in the side hole due to fluid jetting during interruption of excavation, and the on-off valve and the By interlocking the operation and stopping of the fluid supply drive device, loss of power is reduced. In addition, various changes and additions can be made to the structure, combination, etc. of each component other than the above-described embodiments without departing from the gist of the present invention.
（発明の効果）
以上述べたように１本発明に８いては５回転ブロックに
、オーガ内を通過させてオーガ先端より噴出させる流体
を供給する孔を設け、鎖孔の一部に開閉弁を設け、該開
閉弁を前記摺動ブロックに連動させ、チャック爪開、閉
に連動して開閉弁かそれぞれ閉、開される構成としたの
で、オーガからの噴出流体として水等の液体を用いた場
合、横穴掘削用の縦穴あるいは溝の底部に、オーガ継足
しの際に流体供給ホース等からの液漏れによって液かた
まることがなく、作業環境の悪化が避けられる。また、
噴出流体として空気等の気体を用いた場合には、掘削中
断中における流体噴出による横穴の乱れを防止すること
ができ、また、前記開閉弁と連動させて流体供給用駆動
装置の作動、停止を行なわせることにより、動力の損失
が低減される。また、チャック爪の開閉に伴なって開閉
弁の開閉が自動的に行なわれるので、作業員が開閉弁の
操作を行なう必要がなく１作業上の手間を増やすことが
なく、実用上非常に有益である。(Effects of the Invention) As described above, in one aspect of the present invention, a hole is provided in the five-rotation block for supplying fluid to be passed through the auger and ejected from the tip of the auger, and an on-off valve is provided in a part of the chain hole. The opening/closing valve is linked to the sliding block, and the opening/closing valve is closed and opened in conjunction with the opening and closing of the chuck jaw, respectively, so that a liquid such as water can be used as the fluid ejected from the auger. In this case, liquid does not accumulate at the bottom of a vertical hole or groove for horizontal hole drilling due to liquid leakage from a fluid supply hose or the like when replenishing the auger, and deterioration of the working environment can be avoided. Also,
When a gas such as air is used as the ejected fluid, it is possible to prevent disturbances in the side hole due to the ejected fluid during excavation interruptions, and it is also possible to operate and stop the fluid supply drive device in conjunction with the on-off valve. By doing so, power loss is reduced. In addition, since the on-off valve opens and closes automatically as the chuck jaw opens and closes, there is no need for the worker to operate the on-off valve, which does not increase the labor involved in the work, which is extremely useful in practice. It is.
第１図は本発明による流体噴出式横穴掘削装置の要部で
ある回転駆動装置の一実施例を示す側面断面図、第２図
は該実施例の回転駆動装置を具備した横穴掘削システム
を示す側面断面図、第３図は該システムの要部の正面断
面図、第４図は該実施例の回転駆動装置の平面断面図、
第５図は該実施例の回転チャック装置の正面図、第６図
は該実施例の摺動ブロックとチャック爪との保合構造を
示す断面図である。
特許出願人 日本電信電話株式会社外２名代理人 弁理
士 秋本正実外１名
第３図
：通水孔
４：横穴掘削装置
１１ニガイド枠
１７：回転チャック装置
９ｍ
４０：摺動ブロックFIG. 1 is a side sectional view showing an embodiment of a rotary drive device which is a main part of a fluid jet type horizontal hole drilling device according to the present invention, and FIG. 2 shows a side hole drilling system equipped with the rotary drive device of the embodiment. 3 is a front sectional view of the main parts of the system; FIG. 4 is a plan sectional view of the rotary drive device of the embodiment;
FIG. 5 is a front view of the rotary chuck device of this embodiment, and FIG. 6 is a sectional view showing the engagement structure of the sliding block and chuck claw of this embodiment. Patent applicant: Nippon Telegraph and Telephone Corporation and two other agents Patent attorney: Masami Akimoto and one other person Figure 3: Water hole 4: Lateral hole drilling device 11 Guide frame 17: Rotary chuck device 9m 40: Sliding block
Claims (1)
継足し式オーガを把持し、前記回転駆動装置をガイド枠
上にて往復させると共に、オーガを継足しながら横穴を
掘削する装置であって、前記回転チャック装置が、前記
回転駆動装置内にアクチュエータにより前進、後退され
るように収容された摺動ブロックと、モータにより回転
される回転ブロックと、該回転ブロックに放射状に摺動
自在に装着されると共に、前記摺動ブロックの前進、後
退に伴なって開閉される複数個のチャック爪とからなる
ものにおいて、前記回転ブロックに、オーガ内を通過さ
せてオーガ先端より噴出させる流体を通過させる孔を設
け、該孔の一部に開閉弁を設け、該開閉弁を前記摺動ブ
ロックに連動させ、チャック爪開、閉時に開閉弁がそれ
ぞれ閉、開となるように構成したことを特徴とする流体
噴出式横穴掘削装置。An apparatus for excavating a horizontal hole while reciprocating the auger by gripping a replenishing auger by a rotary chuck device provided on a rotary drive device of the auger, reciprocating the rotary drive device on a guide frame, and excavating a horizontal hole while replenishing the auger. A chuck device includes a sliding block housed in the rotary drive device so as to be moved forward and backward by an actuator, a rotating block rotated by a motor, and a chuck device mounted on the rotating block so as to be slidable radially. , consisting of a plurality of chuck claws that are opened and closed as the sliding block advances and retreats, wherein the rotary block is provided with a hole through which fluid passes through the auger and is ejected from the auger tip. , a fluid jetting device characterized in that an on-off valve is provided in a part of the hole, and the on-off valve is interlocked with the sliding block so that the on-off valve closes and opens when the chuck jaw opens and closes, respectively. Type horizontal hole drilling equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1031106A JP2761231B2 (en) | 1989-02-13 | 1989-02-13 | Fluid ejection side hole drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1031106A JP2761231B2 (en) | 1989-02-13 | 1989-02-13 | Fluid ejection side hole drilling rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02213583A true JPH02213583A (en) | 1990-08-24 |
| JP2761231B2 JP2761231B2 (en) | 1998-06-04 |
Family
ID=12322150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1031106A Expired - Lifetime JP2761231B2 (en) | 1989-02-13 | 1989-02-13 | Fluid ejection side hole drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2761231B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661122A (en) * | 2012-03-20 | 2012-09-12 | 陈月辉 | Coaxial and automatic water feeder for water drill |
| US9243453B2 (en) | 2010-03-31 | 2016-01-26 | Tracto-Technik Gmbh & Co. Kg | Method for operating a horizontal drilling device and horizontal drilling device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882096B (en) * | 2019-01-16 | 2021-04-20 | 中煤科工集团西安研究院有限公司 | Jaw type water feeder and construction method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6439490A (en) * | 1987-08-06 | 1989-02-09 | Hitachi Construction Machinery | Feedwater type cave excavator |
-
1989
- 1989-02-13 JP JP1031106A patent/JP2761231B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6439490A (en) * | 1987-08-06 | 1989-02-09 | Hitachi Construction Machinery | Feedwater type cave excavator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9243453B2 (en) | 2010-03-31 | 2016-01-26 | Tracto-Technik Gmbh & Co. Kg | Method for operating a horizontal drilling device and horizontal drilling device |
| CN102661122A (en) * | 2012-03-20 | 2012-09-12 | 陈月辉 | Coaxial and automatic water feeder for water drill |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2761231B2 (en) | 1998-06-04 |
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