JPH0768868B2 - Underground excavator - Google Patents
Underground excavatorInfo
- Publication number
- JPH0768868B2 JPH0768868B2 JP1261381A JP26138189A JPH0768868B2 JP H0768868 B2 JPH0768868 B2 JP H0768868B2 JP 1261381 A JP1261381 A JP 1261381A JP 26138189 A JP26138189 A JP 26138189A JP H0768868 B2 JPH0768868 B2 JP H0768868B2
- Authority
- JP
- Japan
- Prior art keywords
- excavator
- underground
- rotating body
- support shaft
- link mechanism
- 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 - Lifetime
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
【発明の詳細な説明】 (産業上の利用分野) 本発明は、地下鉄,道路用トンネルや上下水道等に適用
できる断面の横坑や、橋梁や建物の基礎、立坑を地中に
深く鉛直に沈下させて築造する場合のケーソンや、地下
鉄道の出入口等のための斜坑を構築するのに適した地中
掘削機に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention makes a horizontal shaft with a cross section applicable to subways, road tunnels, water and sewage systems, bridges, building foundations, and vertical shafts deep underground in the ground. The present invention relates to an underground excavator suitable for constructing a caisson for sinking and building, and an inclined shaft for an entrance and exit of a subway.
なお、本発明における地中とは地表面を含む地盤を意味
するもので、従って運河や開水路の築造に用いられる地
中掘削機も本発明に含まれる。In addition, the underground in the present invention means the ground including the ground surface, and therefore, the underground excavator used for the construction of a canal or an open channel is also included in the present invention.
(従来の技術) 従来、変形断面の横坑,立坑,斜坑を構築する場合の地
中掘削機の先行例としては、特開昭63-134787号公報が
ある。(Prior Art) Japanese Patent Laid-Open No. 63-134787 is a conventional example of an underground excavator in the case of constructing a horizontal shaft, a vertical shaft, and an inclined shaft having a modified cross section.
第4図(a),(b)は係る先行例を示すもので、この
地中掘削機は長円形のシールド筒100内の切羽室Bの両
側にそれぞれ回転掘削具101,102が設けられ、かつ上下
部分には平行リンク機構を有する掘削具103,104が設け
られ、また、それらの間の略中央部には小径の回転掘削
具105が設けられた構成とし、種々の形状の掘削断面に
対応できるようにしている。FIGS. 4 (a) and 4 (b) show such a prior art example. In this underground excavator, rotary excavators 101 and 102 are provided on both sides of a face chamber B in an oval shield cylinder 100, respectively, and upper and lower parts are provided. The parts are provided with excavators 103 and 104 having a parallel link mechanism, and a rotary excavator 105 having a small diameter is provided in a substantially central portion between them so that excavation cross sections of various shapes can be dealt with. ing.
(発明が解決しようとする課題) しかしながら、上記構成の地中掘削機においては、掘削
具103,104を駆動させる駆動機構の主要部であるアーム1
06が隔壁107の前方の切羽室B内を運動することにな
り、多大な抵抗がアーム106に作用し駆動力が大きくな
る。(Problems to be Solved by the Invention) However, in the underground excavator having the above-described configuration, the arm 1 that is the main part of the drive mechanism that drives the excavating tools 103, 104.
Since 06 moves in the face chamber B in front of the partition wall 107, a great resistance acts on the arm 106, and the driving force becomes large.
また、掘削具103,104と支持軸108との連結部分が切羽室
B内の土砂中で回転自在に取り付けてあるため、トラブ
ルが発生しやすく、発生した場合には補修が難しいとい
う課題がある。Further, since the connecting portion between the excavators 103, 104 and the support shaft 108 is rotatably attached in the earth and sand in the face chamber B, there is a problem that a trouble is likely to occur and repair is difficult when the trouble occurs.
本発明は上記の点に鑑み提案されたもので、その目的と
するところは、変形断面の横坑,立坑,斜坑を構築する
ために平行リンク機構を用いた掘削機を備えた地中掘削
機において、掘削具の運動抵抗を減少させ、かつ掘削具
の支持軸の破損の可能性を軽減させ、また、トラブル発
生時に補修を容易とした地中掘削機を提供するにある。The present invention has been proposed in view of the above points, and an object of the present invention is to provide an underground excavator equipped with an excavator using a parallel link mechanism for constructing a horizontal shaft, a vertical shaft, and a slant shaft having a modified cross section. In order to reduce the movement resistance of the excavator, reduce the possibility of damage to the support shaft of the excavator, and to provide an underground excavator that facilitates repair when trouble occurs.
(課題を解決するための手段) 地中を掘削する任意形状の掘削機のシールド筒の前部に
隔壁を設け、 この隔壁に複数の円板筒形状の回転体を回転自在に支持
し、 この回転体の回転中心より偏った位置にこの回転中心と
平行に回転自在な支持軸を設け、 この支持軸の前端に掘削具を配設し、 多数の掘削刃を有する前記掘削具は前記回転体の回転に
より前記支持軸を介して平行リンク機構的に回動し、 所要掘削断面の一部ないしは略全体を掘削するように
し、かつ前記平行リンク機構を有する掘削具の後部、回
転体の前面および隔壁に適数の撹拌機構を設け、 前記撹拌機構は前記掘削具の回動において互いに衝突し
ないように配設されたことに特徴を有している。(Means for Solving the Problem) A partition wall is provided in the front part of a shield cylinder of an excavator having an arbitrary shape for excavating underground, and a plurality of disk cylinder-shaped rotating bodies are rotatably supported on the partition wall. A rotatable support shaft is provided in a position deviated from the rotation center of the rotating body in parallel with the rotation center, and an excavating tool is arranged at the front end of this supporting shaft. Of the excavation tool is rotated in a parallel link mechanism through the support shaft to excavate a part or substantially the entire required excavation cross section, and the rear part of the excavator having the parallel link mechanism, the front face of the rotating body, and The partition wall is provided with an appropriate number of stirring mechanisms, and the stirring mechanisms are arranged so as not to collide with each other when the excavator is rotated.
(作用) 本発明では、上記のように構成し、要するに、平行リン
ク機構を有する掘削具の駆動機構の主要部である回転体
を隔壁内に収めることにより、切羽室内での運動抵抗を
減少させている。(Operation) In the present invention, the rotation resistance which is the main part of the drive mechanism of the excavating tool having the parallel link mechanism is housed in the partition wall in the above-described configuration, thereby reducing the motion resistance in the face chamber. ing.
また、掘削具の支持軸を隔壁に支持された回転体で支持
しているため、破損の可能性を少なくし、トラブルが発
生した場合にも補修を容易とし、その結果、作業性を向
上させ、経済面においても有利としている。In addition, since the support shaft of the excavator is supported by the rotating body supported by the partition wall, the possibility of damage is reduced, and even when trouble occurs, repair is facilitated, resulting in improved workability. It is also advantageous in terms of economy.
(実施例1) 第1図(a)〜(d)は本発明の第1実施例で、掘削断
面が略長方形をなす泥土圧シールドに適用した場合の例
を示す。(Embodiment 1) FIGS. 1 (a) to 1 (d) show a first embodiment of the present invention, which is applied to a mud pressure shield having a substantially rectangular excavation cross section.
図において、1は地中掘削機、2は地中掘削機1の構成
要素であり、かつ断面形状が略長方形のシールド筒で、
その前方にはフード3が形成され、また、前方内は切羽
室を形成するために隔壁4で仕切られている。In the figure, 1 is an underground excavator, 2 is a component of the underground excavator 1, and is a shield cylinder having a substantially rectangular cross-section.
A hood 3 is formed in front of the hood 3, and the inside of the hood is partitioned by a partition wall 4 to form a face chamber.
5は、第1図(b),(d)から明らかなように上方に
2個、下方に2個づつ配置され、かつ隔壁4に回転自在
に支持された中空短円柱状の回転体で、この回転体5は
第1図(a)に示すように、切羽室側に面する前部6
と、円筒部7と、坑内側に位置する後部8とを有してい
る。そして、回転体5全体は円筒部7の外周側と隔壁4
の対向する内周側との間に設けられたシール9によりシ
ールされ、かつ後部8側に設けられた大口径ベアリング
10によって軸支されている。As shown in FIGS. 1 (b) and 1 (d), reference numeral 5 denotes a hollow short cylindrical rotating body which is arranged two above and two below and is rotatably supported by the partition wall 4. As shown in FIG. 1 (a), this rotating body 5 has a front portion 6 facing the face of the face of the face.
And a cylindrical portion 7 and a rear portion 8 located inside the mine. The rotating body 5 as a whole is divided into the outer peripheral side of the cylindrical portion 7 and the partition wall 4.
Large-diameter bearing provided on the rear portion 8 side and sealed by a seal 9 provided between the inner peripheral side and the opposite inner peripheral side
It is pivoted by 10.
また、各回転体5はその中心から偏位した位置において
支持軸11が貫通されており、回転体5内であってその外
周側に設けられ、かつ軸受ケース14によって固定された
ラジアルベアリング12-1,12-2やスラストベアリング12-
3等によって支持され、かつ回転体5の前部6の部分に
シール13が設けられている。この支持軸11は後述の掘削
具25に回転体5の運動を伝達するためのもので、掘削断
面の大きさや形状によって取付位置が選定される。Further, each of the rotating bodies 5 has a support shaft 11 penetrating at a position deviated from the center thereof, is provided inside the rotating body 5 on the outer peripheral side thereof, and is fixed by a bearing case 14 to a radial bearing 12-. 1,12-2 and thrust bearing 12-
A seal 13 is provided on the front portion 6 of the rotating body 5 while being supported by 3 and the like. The support shaft 11 is for transmitting the motion of the rotating body 5 to the excavator 25, which will be described later, and the mounting position is selected according to the size and shape of the excavated cross section.
この支持軸11の内部には添加材注入穴15があけられ、こ
の添加材注入穴15の後方は支持軸11の後端に設けられた
スイベルジョイント16を介し添加材注入管17の一端と接
続されている。また、この添加材注入管17の他端は回転
体5に設けてあるスイベルジョイント18に接続されてい
る。このスイベルジョイント18は回転体5の後部8の略
中央部に支持され、かつ前後には添加材注入管19が設け
られ、この添加材注入管19の前方には回転体5の前部の
略中央に突設され、かつ切羽室内に位置するとともに、
内部に添加材注入穴があけられた添加材吐出孔兼撹拌棒
20と連結されている。An additive material injection hole 15 is formed inside the support shaft 11, and the rear of the additive material injection hole 15 is connected to one end of an additive material injection pipe 17 via a swivel joint 16 provided at the rear end of the support shaft 11. Has been done. The other end of the additive injection pipe 17 is connected to a swivel joint 18 provided on the rotating body 5. The swivel joint 18 is supported at a substantially central portion of the rear portion 8 of the rotating body 5, and an additive material injection pipe 19 is provided in the front and rear thereof, and in front of the additive material injection pipe 19, the front portion of the rotating body 5 is substantially formed. It is projected in the center and located in the face chamber,
Additive material discharge hole and stirring rod with additive material injection hole inside
It is connected with 20.
なお、回転体5の後部8の外周には回転体5を回転させ
るためのギヤ21が設けられ、このギヤ21は駆動モータ22
の駆動軸に設けられたピニオン23と噛合され、これらの
機構を介し回転するように構成されている。A gear 21 for rotating the rotating body 5 is provided on the outer periphery of the rear portion 8 of the rotating body 5. The gear 21 is a drive motor 22.
It is configured to mesh with a pinion 23 provided on the drive shaft of and to rotate via these mechanisms.
また、上記において支持軸11内の添加材注入穴15は支持
軸11の前端に設けられた桁材24の内部を通り、ベントナ
イト溶液等の如き添加材を切羽に噴出できるようになっ
ている。Further, in the above, the additive material injection hole 15 in the support shaft 11 passes through the inside of the girder material 24 provided at the front end of the support shaft 11, and the additive material such as bentonite solution can be jetted to the face.
この桁材24はいわゆる平行リンクを形成すべく各支持軸
11と連結され、また、掘削具25を構成している。すなわ
ち、桁材24の前面等には掘削刃26が設けられ、また、切
羽側には添加材吐出孔27が臨み、切羽に添加材を噴出可
能となっている。一方、掘削具25を構成する桁材24の後
面には撹拌羽根28が設けられている。なお、この掘削具
25の形状は掘削断面の形状により決定され、1回転で掘
削断面全体を掘削できるように構成される。This girder member 24 is used for supporting shafts so as to form so-called parallel links.
It is connected to 11 and also constitutes a drilling tool 25. That is, the excavating blade 26 is provided on the front surface of the girder material 24, and the additive material discharge hole 27 faces the cutting face so that the additive material can be jetted to the cutting face. On the other hand, a stirring blade 28 is provided on the rear surface of the girder material 24 that constitutes the excavator 25. In addition, this drilling tool
The shape of 25 is determined by the shape of the excavation section, and is configured so that the entire excavation section can be excavated in one rotation.
その他、29は回転体5の前面に設けられた撹拌棒、30は
隔壁4の切羽側A表面に設けられた圧力計、31は隔壁4
の下方に前端が連結されたスクリューコンベア等の排土
装置、32は推進用ジャッキであり、隔壁4の後方であっ
てシールド筒2内側に適数配置されている。In addition, 29 is a stirring rod provided on the front surface of the rotating body 5, 30 is a pressure gauge provided on the surface of the partition 4 on the face side A, and 31 is the partition 4
An earth discharging device such as a screw conveyor whose front end is connected to the lower part of the above, and 32 is a jack for propulsion, which is arranged in a proper number behind the partition wall 4 and inside the shield tube 2.
次に上記構成の地中掘削機1の動作について説明する。Next, the operation of the underground excavator 1 having the above configuration will be described.
駆動装置により平行リンク機構を有する掘削具25の駆動
機構の主要部である回転体5を回転させるが、複数の回
転体5は同期制御されていて、同時に同速で同方向に回
転し、この運動を支持軸11を介し掘削具25に伝え運動さ
せる。そして、掘削具25の前面に取付けられている掘削
刃26によって切羽を切削する。The rotating body 5 which is the main part of the drive mechanism of the excavator 25 having the parallel link mechanism is rotated by the drive device, but the plurality of rotating bodies 5 are synchronously controlled and simultaneously rotate in the same direction at the same speed. The motion is transmitted to the excavator 25 via the support shaft 11 and moved. Then, the cutting face is cut by the excavating blade 26 attached to the front surface of the excavator 25.
切削された土砂は、切羽室Aに取込まれ、充満し、推進
用ジャッキ32により切羽室A内を加圧し、撹拌羽根28お
よび撹拌棒29により、必要により注入された添加材と十
分に練り混ぜられ、土砂に不透水性と塑性流動性をもた
せ、この混合体の圧力で切羽を安定させ、圧力計30によ
り一定の圧力を維持しつつ、排土装置31により、適量の
排土をしながら掘進する。The cut earth and sand are taken into the face chamber A and filled with it, and the inside of the face chamber A is pressurized by the jack 32 for propelling, and the stirring blade 28 and the stirring rod 29 sufficiently knead with the injected additive material. After being mixed, the soil is made impermeable and has a plastic fluidity, the pressure of this mixture stabilizes the face, and while maintaining a constant pressure with the pressure gauge 30, the soil discharging device 31 discharges an appropriate amount of soil. While digging.
なお、掘削具25に取付けられている掘削刃26の移動範囲
は、ほぼ掘削面全体を切削できる配置となっている。The excavation blade 26 attached to the excavator 25 is moved within a range in which the entire excavation surface can be cut.
また、撹拌羽根28や回転体5に付いており切羽室Aに突
出している撹拌棒29と添加材吐出孔兼撹拌棒20とは互い
に衝突することなく、切羽室A全体を撹拌するように配
置されている。In addition, the stirring blade 29 attached to the stirring blade 28 and the rotating body 5 and protruding into the cutting chamber A and the stirring rod 20 serving also as the additive material discharge hole are arranged so as to stir the entire cutting chamber A without colliding with each other. Has been done.
しかして、この場合、平行リンク機構を有する掘削具25
の駆動機構の主要部である回転体5の本体部分は隔壁4
内に収められ、切羽室A内に位置していないため、掘削
具25の掘削時に、その分運動抵抗が少なくなるものであ
る。Then, in this case, the excavator 25 having a parallel link mechanism is used.
The main body of the rotating body 5, which is the main part of the drive mechanism of the
Since it is housed inside and is not located inside the face chamber A, the motion resistance is reduced accordingly when the excavator 25 is excavated.
また、切羽室A内に掘削土砂が取り込まれるが、その中
に含まれる礫によって破損を受ける可能性も少なくなる
ものである。Further, although the excavated earth and sand are taken into the face chamber A, the possibility of being damaged by the gravel contained therein is reduced.
(実施例2) 第2図(a),(b)は本発明の第2実施例を示すもの
で、この例では掘削断面が馬締形をなすようシールド筒
2′が形成され、かつその略中央部から下方部分に第1
実施例において説明した4個の回転体5が設けられ、か
つ支持軸11の先端に所望形状の桁材によって組まれた掘
削具25′を構成している。(Embodiment 2) FIGS. 2 (a) and 2 (b) show a second embodiment of the present invention. In this embodiment, a shield cylinder 2'is formed so that the excavated cross section has a horseshoe shape, and First from the approximate center to the lower part
The four rotating bodies 5 described in the embodiment are provided, and the excavator 25 'is assembled at the tip of the support shaft 11 by a girder having a desired shape.
また、未掘削部分を掘削するために切羽室Aの略中央部
に回転自在なセンターシャフト33が設けられ、その先端
に回転掘削具35を構成するスポーク36が設けられ、この
スポーク36の前面に掘削刃37,38が設けられ、また、後
面には撹拌羽根39が取付けられ、掘削具25′では掘削不
能な切羽室Aの上方部分を掘削できるように構成されて
いることに特徴を有している。なお、平行リンク機構を
有する掘削具25′と回転掘削具35とは同時に起動するの
で、互いに衝突しないような位置に設けられることは言
うまでもない。Further, in order to excavate the unexcavated portion, a rotatable center shaft 33 is provided at a substantially central portion of the face chamber A, and a spoke 36 constituting a rotary excavator 35 is provided at the tip thereof, and a front surface of the spoke 36 is provided. The digging blades 37, 38 are provided, and the stirring blade 39 is attached to the rear surface, so that the upper part of the face chamber A, which cannot be digged by the digging tool 25 ', can be digged. ing. Needless to say, since the excavator 25 'having the parallel link mechanism and the rotary excavator 35 are simultaneously activated, they are provided at positions where they do not collide with each other.
その他の構成,動作は第1実施例と同様である。Other configurations and operations are similar to those of the first embodiment.
(実施例3) 第3図(a)(b)は本発明の第3実施例を示すもので
ある。(Embodiment 3) FIGS. 3A and 3B show a third embodiment of the present invention.
この実施例では、掘削断面が楕円形をなすようシールド
筒2″が形成され、任意の個所に第1実施例で説明した
適数の回転体5が装備され、支持軸11の前方に、中央部
が円形に開口された楕円形状の堀削具25″を構成してい
る。In this embodiment, a shield cylinder 2 ″ is formed so that the excavated cross section has an elliptical shape, and an appropriate number of rotating bodies 5 described in the first embodiment are mounted at arbitrary places, and in front of the support shaft 11, at the center. It constitutes an elliptical excavator 25 ″ with a circular opening.
また、中央の未掘削部分を掘削するために切羽室Aの中
央に回転自在にセンターシャフト33が設けられ、その先
端に回転掘削具35を構成するスポーク36が設けられ、そ
の前面には掘削刃37,38,また後面には、撹拌羽根39が取
付けられている。そして、この回転掘削具35と同一平面
上に上記平行リンク機構を有する掘削具25″が設けら
れ、これらが互いに衝突せず運動するため、略全断面を
掘削することができる。ここで、平行リンク機構を有す
る掘削具25″の中央部開口円の半径は回転掘削具35の回
転半径と支持軸11の回転半径の和とほぼ等しくなってい
る。Further, a center shaft 33 is rotatably provided in the center of the face chamber A for excavating an unexcavated portion in the center, and a spoke 36 that constitutes a rotary excavator 35 is provided at the tip thereof, and an excavating blade is provided on the front surface thereof. 37, 38, and a stirring blade 39 is attached to the rear surface. The excavator 25 ″ having the parallel link mechanism is provided on the same plane as the rotary excavator 35, and the excavators 25 ″ move without colliding with each other, so that substantially the entire cross section can be excavated. The radius of the central opening circle of the excavator 25 ″ having a link mechanism is substantially equal to the sum of the radius of rotation of the rotary excavator 35 and the radius of rotation of the support shaft 11.
なお、前記回転掘削具35は、中央部に位置しているが必
要により、いろいろな位置に設けることができまた、個
数も適数設けられている。さらに、掘削具25″は、面板
だけでなく、桁材で組まれたスリット状構造でも良い。Although the rotary excavator 35 is located at the central portion, it can be provided at various positions if necessary, and an appropriate number is provided. Further, the excavator 25 ″ may have not only a face plate but also a slit-like structure assembled with girder materials.
また、上記第1実施例では掘削断面が略正方形となる場
合、第2実施例では馬締形となる場合、第3実施例では
楕円形となる場合について示したが、掘削具の形状と配
置、その運動範囲によって、円形,楕円形,台形,小判
形,長方形,まゆ形,三角形などあらゆる掘削断面に本
発明を適用できる。Further, in the above-described first embodiment, the excavation cross section has a substantially square shape, the second embodiment has a horse tightening shape, and the third embodiment has an oval shape. The present invention can be applied to any excavated cross section such as a circular shape, an elliptical shape, a trapezoidal shape, an oval shape, a rectangular shape, an eyebrow shape, and a triangular shape, depending on its range of motion.
また、回転体の数も強度,動力等から適数が選定でき
る。Also, the number of rotating bodies can be selected as appropriate from the viewpoint of strength, power, etc.
さらに、横坑だけでなく、ケーソン等の立坑や斜坑の構
築等、広く活用できる。Moreover, it can be widely used not only for side shafts but also for building vertical shafts such as caisson and inclined shafts.
また、上記実施例は泥土圧シールドで説明したが、泥水
加圧シールド,気泡シールド,開放型機械シールド,土
圧式シールド等あらゆる工法に採用できるものであり、
撹拌翼の設置および添加材の注入は必要に応じて実施さ
れるものである。Further, although the above-mentioned embodiment has been described with respect to the mud pressure shield, it can be applied to any construction method such as a mud pressure shield, a bubble shield, an open type mechanical shield, an earth pressure type shield,
The installation of the stirring blade and the injection of the additive are carried out as needed.
(発明の効果) 以上のように本発明によれば、平行リンク機構を有する
掘削具の駆動機構の主要部である回転体の本体を切羽室
内に位置させることなく隔壁内に収めたため、掘削具を
回動するにあたり、切羽室内での運動抵抗を減少させる
ことができる。(Effect of the Invention) As described above, according to the present invention, the main body of the rotating body, which is the main part of the driving mechanism of the excavator having the parallel link mechanism, is housed in the partition wall without being located in the face chamber. It is possible to reduce the motion resistance in the facet chamber when rotating the.
また、駆動機構の主要部が切羽室内に露出してなく、か
つ掘削具の支持軸を隔壁に回転自在に支持された回転体
によって支持しているため、破損の可能性が少なく、ト
ラブルが発生した場合にも補修が容易であり、よって作
業性と経済性が向上する。Also, since the main part of the drive mechanism is not exposed in the face chamber and the support shaft of the excavator is supported by the rotating body that is rotatably supported by the partition wall, there is little possibility of damage and trouble will occur. Even if it is done, it is easy to repair, thus improving workability and economy.
さらに、掘削具等に撹拌手段を設けておけば、添加材を
注入した場合、チャンバー内での土砂の固結等を防止で
き、種々の土質に対応でき、スムーズな掘進が可能とな
る。Furthermore, if the excavating tool is provided with a stirring means, it is possible to prevent the solidification of the soil and the like in the chamber when the additive material is injected, and it is possible to cope with various soil types and to smoothly excavate.
第1図(a)は本発明の第1実施例のシールド掘削機の
縦断面図、(b)は(a)図中A矢視図、(c)は
(a)図中B断面図、(d)は(a)図中C断面図、第
2図(a)は本発明の第2実施例の正面図であり、
(b)はA-A断面図、第3図(a),(b)は本発明の
第3実施例で、(a)は正面図、(b)は縦断面図、第
4図(a)は従来例の地中掘削装置の正面図であり、同
(b)は縦断面図である。 1……シールド掘削機 2……フード 3……シールド筒 4……隔壁 5……回転体 6……回転体の前面 7……円筒筒体 8……回転体の後面 9……シール 10……大口径ベアリング 11……支持軸 12-1……ラジアルベアリング 12-2……スラストベアリング 12-3……ラジアルベアリング 13……シール 14……軸受ケース 15……添加材注入穴 16……スイベルジョイント 17,19……添加材注入管 18……スイベルジョイント 20……添加材吐出孔兼撹拌棒 21……ギヤ 22……駆動モータ 23……ピニオン 24……桁材 25,25″……掘削具 27……添加材吐出孔 28……撹拌羽根 29……撹拌棒 30……圧力計 31……排土装置 32……推進用ジャッキ1A is a longitudinal sectional view of a shield excavator according to a first embodiment of the present invention, FIG. 1B is a sectional view taken along arrow A in FIG. 1A, and FIG. (D) is a sectional view taken along the line C in FIG. (A), and FIG. 2 (a) is a front view of a second embodiment of the present invention.
(B) is a sectional view taken along AA, FIGS. 3 (a) and 3 (b) are the third embodiment of the present invention, (a) is a front view, (b) is a longitudinal sectional view, and FIG. 4 (a) is It is a front view of the underground excavation device of a prior art example, and the same (b) is a longitudinal cross-sectional view. 1 ... Shield excavator 2 ... Hood 3 ... Shield cylinder 4 ... Partition wall 5 ... Rotating body 6 ... Rotating body front surface 7 ... Cylindrical cylinder body 8 ... Rotating body rear surface 9 ... Seal 10 ... … Large diameter bearing 11 …… Support shaft 12-1 …… Radial bearing 12-2 …… Thrust bearing 12-3 …… Radial bearing 13 …… Seal 14 …… Bearing case 15 …… Additive material injection hole 16 …… Swivel Joint 17,19 …… Additive material injection pipe 18 …… Swivel joint 20 …… Additive material discharge hole and stirring rod 21 …… Gear 22 …… Drive motor 23 …… Pinion 24 …… Girder material 25,25 ″ …… Drilling Tool 27 …… Additive material discharge hole 28 …… Stirring blade 29 …… Stirring rod 30 …… Pressure gauge 31 …… Soil removal device 32 …… Propulsion jack
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−192193(JP,A) 特開 昭63−134786(JP,A) 特開 平1−310091(JP,A) ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-59-192193 (JP, A) JP-A-63-134786 (JP, A) JP-A-1-310091 (JP, A)
Claims (2)
ド筒の前部に隔壁を設け、 この隔壁に複数の円板筒形状の回転体を回転自在に支持
し、 この回転体の回転中心より偏った位置にこの回転中心と
平行に回転自在な支持軸を設け、 この支持軸の前端に掘削具を配設し、 多数の掘削刃を有する前記掘削具は前記回転体の回転に
より前記支持軸を介して平行リンク機構的に回動し、 所要掘削断面の一部ないしは略全体を掘削するように
し、かつ前記平行リンク機構を有する掘削具の後部、回
転体の前面および隔壁に適数の撹拌機構を設け、 前記撹拌機構は前記掘削具の回動において互いに衝突し
ないように配設されたことを特徴とする地中掘削機。1. A partition is provided at a front portion of a shield cylinder of an excavator having an arbitrary shape for excavating underground, and a plurality of disk cylinder-shaped rotating bodies are rotatably supported on the partition, and the rotating body is rotated. A support shaft rotatable in parallel with the center of rotation is provided at a position deviated from the center, and an excavator is arranged at the front end of this support shaft. Rotate like a parallel link mechanism via a support shaft to excavate a part or substantially the entire required excavation cross section, and a suitable number on the rear part of the excavator having the parallel link mechanism, the front face of the rotating body and the partition wall. 2. An underground excavator, wherein the stirring mechanism is provided so that the stirring mechanism does not collide with each other when the excavator is rotated.
具と上記平行リンク機構を有する掘削具を有し、 前記回転掘削具の回転と前記平行リンク機構を有する掘
削具とはその回動において互いに衝突しないように配設
したことを特徴とする特特許請求の範囲1記載の地中掘
削機。2. A rotary excavator having one or a plurality of rotary excavators having a stirring mechanism and an excavator having the parallel link mechanism, wherein rotation of the rotary excavator and excavator having the parallel link mechanism occur in rotation thereof. The underground excavator according to claim 1, wherein the underground excavators are arranged so as not to collide with each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1261381A JPH0768868B2 (en) | 1989-10-06 | 1989-10-06 | Underground excavator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1261381A JPH0768868B2 (en) | 1989-10-06 | 1989-10-06 | Underground excavator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH03125795A JPH03125795A (en) | 1991-05-29 |
JPH0768868B2 true JPH0768868B2 (en) | 1995-07-26 |
Family
ID=17361060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1261381A Expired - Lifetime JPH0768868B2 (en) | 1989-10-06 | 1989-10-06 | Underground excavator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0768868B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4849724B2 (en) * | 2001-02-27 | 2012-01-11 | 株式会社タダノ | Boom type aerial work equipment |
JP4546665B2 (en) * | 2001-05-09 | 2010-09-15 | 大成建設株式会社 | Shaft excavator |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5265938A (en) * | 1975-11-27 | 1977-05-31 | Taiho Kensetsu Kk | Lateral pit excavation device |
JPS59192193A (en) * | 1983-04-14 | 1984-10-31 | 株式会社イセキ開発工機 | Shield propelling method and apparatus |
JPS63134786A (en) * | 1986-11-25 | 1988-06-07 | 大豊建設株式会社 | Shield excavator |
JPH0696948B2 (en) * | 1988-06-03 | 1994-11-30 | 大成建設株式会社 | Shield machine |
-
1989
- 1989-10-06 JP JP1261381A patent/JPH0768868B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH03125795A (en) | 1991-05-29 |
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