JPH10273999A - Pipe jacking device for small bore pipe burrying machine - Google Patents
Pipe jacking device for small bore pipe burrying machineInfo
- Publication number
- JPH10273999A JPH10273999A JP8048297A JP8048297A JPH10273999A JP H10273999 A JPH10273999 A JP H10273999A JP 8048297 A JP8048297 A JP 8048297A JP 8048297 A JP8048297 A JP 8048297A JP H10273999 A JPH10273999 A JP H10273999A
- Authority
- JP
- Japan
- Prior art keywords
- propulsion
- cylinder
- thrust
- transmitting member
- thrust transmitting
- 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
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は小口径管を連続的に
地中へ埋設する小口径管埋設機に適用される推進装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a propulsion device applied to a small diameter pipe burying machine for continuously burying small diameter pipes in the ground.
【０００２】[0002]
【従来の技術】複数本の小口径管を連続的に地中へ埋設
する小口径管埋設機は、狭小な発進立坑内に推進装置が
設置され、先導管を駆動するとともに、推進シリンダを
伸長させて先導管により小口径管埋設路を掘進し、前記
先導管に複数の小口径管を直列的に順次装着しながら地
中に埋設する。このときの小口径管の推進は、前記推進
シリンダを推進装置のフレームに沿って伸長させ、その
推力を押板に伝達し、同押板を介して前記小口径管の後
端面を押圧することによりなされる。2. Description of the Related Art A small-diameter pipe burying machine for continuously burying a plurality of small-diameter pipes in the ground has a propulsion device installed in a narrow starting shaft, which drives a leading pipe and extends a propulsion cylinder. Then, the small-diameter pipe burying path is dug by the leading pipe, and a plurality of small-diameter pipes are buried in the ground while being sequentially mounted in series on the leading pipe. At this time, the small-diameter pipe is propelled by extending the propulsion cylinder along the frame of the propulsion device, transmitting the thrust to a push plate, and pressing the rear end face of the small-diameter pipe via the push plate. Made by
【０００３】ところで、従来の小口径管推進装置にあっ
ては、例えば実開平５−１０５９８号公報にも開示され
ているように、前記推進シリンダのピストンロッド端が
反力受け部に枢着されるとともに、同シリンダのシリン
ダチューブ端がフレームに沿って往復動するように構成
されるのが一般的である。この場合、同じく同公報にも
記載されているようにスクリュコンベヤやカッタヘッド
などの駆動装置は前記推進シリンダのシリンダチューブ
に随伴して往復動するようになっている。これは、同駆
動装置の駆動軸部が小口径管の推進とともに推進する前
記スクリュコンベヤの軸端に連結されているため、常に
小口径管の推進速度と一致して移動させる必要があるた
めである。In a conventional small-diameter pipe propulsion apparatus, for example, as disclosed in Japanese Utility Model Laid-Open No. 5-10598, the piston rod end of the propulsion cylinder is pivotally mounted on a reaction force receiving portion. In addition, the cylinder tube end of the cylinder is generally configured to reciprocate along the frame. In this case, as described in the same publication, a driving device such as a screw conveyor or a cutter head reciprocates along with a cylinder tube of the propulsion cylinder. This is because the drive shaft portion of the drive device is connected to the shaft end of the screw conveyor for propulsion along with the propulsion of the small-diameter pipe, so that it is necessary to always move the screw in accordance with the propulsion speed of the small-diameter pipe. is there.
【０００４】また、特開平４−７３３９７号公報には、
推進シリンダの前述の一般的な配置と異なり、シリンダ
チューブを反力受け部に枢着するとともに、ピストンロ
ッド端を往復動させる推進機構が開示されている。同公
報に開示された推進装置の特徴とする機構は、上下一対
の推進シリンダの推進力を小口径管の後端を押圧する押
輪に伝達するため、ピストンロッドの先端に固着された
ロッドプレートの中央部から後方に向けて延設された心
棒の自由端及び中間部にそれぞれ前記押輪に当接する第
１及び第２の推力伝達部材を取り付け、第１回目の推進
シリンダの伸長時には前記心棒の後部自由端に固設され
た第１の推進伝達部材を前記押輪に当接して推進し、そ
の推進が終了すると前記心棒の中間部に第２の推進伝達
部材を取り付け、第２回目の推進をなし、推進シリンダ
の２回の伸縮動作により一本の小口径管を埋設するもの
であり、推進装置の小型化を実現することと、続く新た
な小口径管を埋設するにあたって、ワイヤと滑車による
押輪復帰機構により推進シリンダの収縮動作に連動して
前記押輪を自動的に元位置へと復帰させるものである。Japanese Patent Laid-Open No. 4-73397 discloses that
Unlike the above-described general arrangement of the propulsion cylinder, a propulsion mechanism that pivotally connects a cylinder tube to a reaction force receiving portion and reciprocates a piston rod end is disclosed. The mechanism of the propulsion device disclosed in the publication discloses a mechanism for transmitting the propulsive force of a pair of upper and lower propulsion cylinders to a pressing wheel that presses the rear end of a small-diameter pipe. First and second thrust transmitting members abutting on the pressing wheel are attached to a free end and an intermediate portion of a mandrel extending rearward from a central portion, and the rear portion of the mandrel at the time of the first extension of the propulsion cylinder. A first propulsion transmission member fixed at a free end is abutted against the pressing wheel and propelled. When the propulsion is completed, a second propulsion transmission member is attached to an intermediate portion of the mandrel to perform a second propulsion. A single small-diameter pipe is buried by two expansion / contraction operations of the propulsion cylinder. This realizes downsizing of the propulsion device. Return mechanism It is intended to return to the automatic original position the junk ring in conjunction with shrinkage operation more propulsion cylinder.
【０００５】従って、この特開平４−７３３９７号公報
にはシリンダチューブを反力受け部に枢着するととも
に、ピストンロッド端を往復動させる推進機構の効果的
な記載は全くなされておらず、その結果、推進シリンダ
への油圧回路はおろか、その油圧管等の配置、或いはス
クリュコンベヤ等を駆動するための駆動装置の配置に関
しても全く考慮の対象とはされておらず、同公報には全
く開示がなされていない。なお、前記推進伝達構造を除
くと、埋設管の埋設にあたって推進シリンダの２ストロ
ークによる埋設操作は既に知られた技術である。Therefore, Japanese Patent Application Laid-Open No. 4-73397 does not disclose an effective description of a propulsion mechanism for pivotally connecting a cylinder tube to a reaction force receiving portion and reciprocating a piston rod end. As a result, let alone the hydraulic circuit to the propulsion cylinder, the arrangement of the hydraulic pipes and the like, and the arrangement of the drive device for driving the screw conveyor and the like are not considered at all, and are not disclosed in the publication. Has not been made. Except for the propulsion transmission structure, the embedding operation by two strokes of the propulsion cylinder when embedding a buried pipe is a known technique.
【０００６】[0006]
【発明が解決しようとする課題】しかして、推進シリン
ダへの油圧の給排は立坑外に設置される油圧ユニットか
ら油圧ホースを介してなされるのが一般的であるが、上
述の理由から推進シリンダの往復動に連動して往復動す
る駆動モータ等の往復動機材への油圧の給排は、駆動装
置の上部に設けられるコントロールユニットに配管がな
され、その油圧入出口に前記立坑外の油圧ユニットと接
続された油圧ホースを接続すると共に、前記駆動モータ
等の往復動機材に接続している。そして、これらの接続
には可撓性の油圧ホースが使われ、ある程度の屈曲動を
許容するため長さに余裕をもたせて機外に露出した状態
でそれぞれ接続している。In general, the supply and discharge of hydraulic pressure to and from the propulsion cylinder are performed from a hydraulic unit installed outside the shaft via a hydraulic hose. The supply and discharge of hydraulic pressure to and from reciprocating equipment such as a drive motor that reciprocates in conjunction with the reciprocation of the cylinder is performed by piping to a control unit provided at the top of the drive unit. A hydraulic hose connected to the unit is connected, and also connected to a reciprocating device such as the drive motor. Flexible hydraulic hoses are used for these connections, and are connected to each other in a state where they are exposed outside the machine with a sufficient length to allow a certain amount of bending movement.
【０００７】しかるに、上記実開平５−１０５９８号公
報に開示されているような、推進シリンダのピストンロ
ッド端が反力受け部に枢着されるとともに、同シリンダ
のシリンダチューブ端がフレームに沿って往復動するよ
うに構成された推進装置にあっては、推進シリンダのシ
リンダチューブの油圧ポートが往復動することになるた
め前記駆動装置とともに前記コントロールユニットに油
圧ホースを接続することになり、他数本の油圧ホースが
露呈した状態で所定のストロークを往復動することにな
る。これは、狭小な作業空間内にあっては作業の障害に
なるばかりでなく、作業の安全性の面からも好ましいこ
とではない。更には掘進時には土石や礫が前記ホース類
に飛来して損傷を与えかねない。However, as disclosed in Japanese Utility Model Laid-Open No. 5-10598, the piston rod end of the propulsion cylinder is pivotally attached to the reaction force receiving portion, and the cylinder tube end of the cylinder is moved along the frame. In the propulsion device configured to reciprocate, the hydraulic port of the cylinder tube of the propulsion cylinder reciprocates, so that a hydraulic hose is connected to the control unit together with the driving device. The predetermined stroke is reciprocated in a state where the hydraulic hoses are exposed. This is not only a hindrance to work in a small work space, but also is not preferable from the viewpoint of work safety. Further, when excavating, debris and gravel may fly to the hoses and cause damage.
【０００８】一方、上記特開平４−７３３９７号公報に
開示された推進装置は、その推力伝達部材が心棒に取り
付けられる以上は、一基のフレームに対して上下に少な
くとも二基の推進シリンダが配される型式の機種でなけ
ればならず、汎用性に乏しいばかりでなく、特に２回目
の推進時に押輪に推力を伝達する第２の推力伝達部材
は、２個の構成材からなり、前記心棒に対して脱着自在
に構成されているが、その脱着にあたっては互いの歯部
を噛合させてから、両構成材をボルトなどで緊締しなけ
ればならず、脱着作業が煩雑であるばかりでなく、その
構成が複雑であり、またその構成に由来して脱着作業は
推進シリンダの側方からせざるを得ず、極めて狭小な立
坑内ではその脱着作業が困難であり、前記作業の煩雑さ
も加わって脱着時に同推力伝達部材を落下させやすく、
安全性の面からも多くの問題が残っている。On the other hand, in the propulsion device disclosed in Japanese Patent Application Laid-Open No. 4-73397, at least two propulsion cylinders are arranged above and below one frame as long as the thrust transmitting member is attached to the mandrel. The second thrust transmitting member for transmitting thrust to the pressing wheel at the time of the second propulsion is formed of two components, and the second thrust transmitting member is not only of low versatility but also of Although it is configured to be detachable, it is necessary to fasten both components with bolts etc. after engaging the teeth of each other when attaching and detaching, and not only is the attaching and detaching work complicated, but also The configuration is complicated, and the desorption work must be performed from the side of the propulsion cylinder due to the configuration, and the desorption work is difficult in an extremely narrow shaft, and the desorption is performed due to the complexity of the work. Sometimes Easy to drop the thrust transmission member,
Many problems remain from the aspect of safety.
【０００９】本発明は上述の課題を解決すべくなされた
ものであり、具体的には構成が簡単で推力伝達部材の取
り付け位置の切り替え作業が容易であり、しかも機外に
露出する油圧ホース類の本数を最小限度に抑えることが
可能で新規な小口径管埋設機の推進装置を提供すること
を目的としている。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and more specifically, hydraulic hoses which have a simple structure, facilitate the work of switching the mounting position of the thrust transmitting member, and are exposed outside the machine. It is an object of the present invention to provide a new small-diameter pipe burying machine propulsion device capable of minimizing the number of tubing.
【００１０】[0010]
【課題を解決するための手段及び作用効果】上記目的
は、本発明の主要な構成である立坑内に設置され、小口
径管を地中へ埋設する小口径管埋設機の推進装置であっ
て、左右一対の各フレームの上方にそれぞれ配設される
少なくとも一基の推進シリンダと、前記小口径管の後端
面に当接して前記推進シリンダ推進力により前記小口径
管を推進させる押板と、前記推進シリンダの推進力を前
記押板に伝達する推力伝達部材とを有し、前記推進シリ
ンダのシリンダチューブが前記フレームの後端部に設置
された反力受けに固設され、前記推力伝達部材が前記推
進シリンダのピストンロッド端に固着されてなり、前記
推力伝達部材が、前記各推力シリンダの長手方向に沿っ
て、左右の各シリンダチューブと上下方向に離間して配
された少なくとも上下一対の第１推力伝達部材と、同第
１推力伝達部材に係脱するとともに前記押板に当接可能
な形態を有する第２推力伝達部材とからなり、前記シリ
ンダチューブと上下に配された前記第１推力伝達部材と
の間に形成される空間部に推進シリンダの作動用油圧配
管が配されてなることを特徴とする小口径管埋設機の推
進装置により達成される。SUMMARY OF THE INVENTION The object of the present invention is to provide a propulsion device for a small-diameter pipe burying machine which is installed in a vertical shaft and buries a small-diameter pipe in the ground, which is a main structure of the present invention. At least one propulsion cylinder disposed above each of a pair of left and right frames, and a push plate that abuts on a rear end surface of the small-diameter pipe to propel the small-diameter pipe by the propulsion cylinder thrust, A thrust transmitting member for transmitting the thrust of the propulsion cylinder to the push plate, wherein a cylinder tube of the propulsion cylinder is fixed to a reaction force receiver installed at a rear end of the frame, and the thrust transmitting member is provided. Is fixed to the piston rod end of the propulsion cylinder, and the thrust transmission member is disposed at least above and below each left and right cylinder tube along the longitudinal direction of each thrust cylinder. A pair of first thrust transmitting members, and a second thrust transmitting member having a form capable of engaging and disengaging from the first thrust transmitting member and abutting on the pressing plate, and being disposed above and below the cylinder tube. This is achieved by a propulsion device for a small-diameter pipe burying machine, wherein a hydraulic pipe for operating a propulsion cylinder is disposed in a space formed between the first thrust transmitting member and the first thrust transmitting member.
【００１１】前記推進シリンダのシリンダチューブが前
記フレームの後端部に設置された反力受けに固設され、
前記推力伝達部材が前記推進シリンダのピストンロッド
端に固着されているため、推進操作中にも推進シリンダ
の設置位置は固定されており不動であることと、上下一
対の第１推力伝達部材をシリンダチューブと上下方向に
離間して配していることとが相まって、油圧ホース類と
して可撓性のない油圧チューブが多く使用することが可
能となり、従来の機外に露出していた油圧ホース類のう
ち推進作業に随伴して往復動する駆動装置の油圧ホース
類を除いて殆ど全てを装置内及び他の機材との干渉を回
避できる部位に固設できるようになる。A cylinder tube of the propulsion cylinder is fixed to a reaction force receiver installed at a rear end of the frame,
Since the thrust transmitting member is fixed to the piston rod end of the propulsion cylinder, the installation position of the propulsion cylinder is fixed and immovable even during the propulsion operation. The fact that the tubes are arranged vertically apart from each other makes it possible to use many inflexible hydraulic tubes as hydraulic hoses. Except for hydraulic hoses of a driving device that reciprocates along with the propulsion work, almost all of them can be fixed to the inside of the device and to a portion where interference with other equipment can be avoided.
【００１２】そのため、特に立坑内の狭小な作業空間を
有効に活用することができるばかりでなく、作業の安全
性及び掘削中の土石や礫などの飛来による油圧ホース類
の損傷を少なくすることができるようになる。Therefore, not only can the narrow working space in the shaft be effectively utilized, but also the safety of the work and the damage of the hydraulic hoses due to the flying of debris and debris during excavation can be reduced. become able to.
【００１３】特に、油圧ホース類の上記損傷を防止する
には、前記第１推力伝達部材が推力シリンダと略等しい
長さを有する板材からなり、その板幅が前記推進シリン
ダの外径にほぼ等しく設定されてなることが望ましい。Particularly, in order to prevent the above-mentioned damage to the hydraulic hoses, the first thrust transmitting member is made of a plate having a length substantially equal to that of the thrust cylinder, and the width of the plate is substantially equal to the outer diameter of the propulsion cylinder. It is desirable to be set.
【００１４】そして、本発明の推進装置としては、左右
の前記フレームの上方にそれぞれ一基の推進シリンダが
配される場合と、左右の前記フレームの上方に少なくと
もそれぞれ二基の推進シリンダが上下に配されてなる場
合とがある。前者の場合には、例えばビニル管などの合
成樹脂管や極く小径の埋設管類などのような小型で大き
な推力を必要としない推進に適し、後者の場合には比較
的大径の鋼管類などのような大きな推力を必要とすると
きの推進に好適である。The propulsion device according to the present invention includes a case in which one propulsion cylinder is disposed above the left and right frames, and a case in which at least two propulsion cylinders are vertically disposed above the left and right frames. There are times when it is arranged. In the former case, it is suitable for propulsion that does not require large thrust, such as synthetic resin pipes such as vinyl pipes or buried pipes with extremely small diameters, and in the latter case, steel pipes with relatively large diameters It is suitable for propulsion when a large thrust is required as in the case of, for example.
【００１５】また、前記第１推力伝達部材の長手方向の
前端部に前記フレーム上を転動する転動子を取り付けれ
ば、推進シリンダの伸縮動作が円滑になされると共に、
前記片持ち式で且つシリンダロッド端に取り付けられた
長尺の第１推力伝達部材の動作姿勢を安定化することが
できる。Further, if a rolling element rolling on the frame is attached to the front end of the first thrust transmitting member in the longitudinal direction, the expansion and contraction operation of the propulsion cylinder can be smoothly performed.
It is possible to stabilize the operation posture of the long first thrust transmitting member that is cantilevered and attached to the end of the cylinder rod.
【００１６】更に、前記第１推力伝達部材の左右側縁
に、前記第２推力伝達部材を係脱するための少なくとも
一対の係合凹部を有し、前記第２推力伝達部材が前記係
合凹部に係合する脚部を有する略門型の枠体からなる場
合には、第１推力伝達部材に対する第２推力伝達部材の
係脱操作が容易となり、しかもその操作が第１推力伝達
部材の上方からの上下方向の単純な操作であるため、狭
い立坑内でも係脱操作が容易であり、前記第２推力伝達
部材を推進装置の設置面に落下させるようなことがなく
なり、作業員の安全性と周辺機材の損傷が防止できる。Further, at least one pair of engaging recesses for engaging and disengaging the second thrust transmitting member is provided on left and right side edges of the first thrust transmitting member, and the second thrust transmitting member is provided with the engaging recess. In this case, the second thrust transmitting member can be easily disengaged from the first thrust transmitting member, and the operation can be performed above the first thrust transmitting member. Is simple operation in the vertical direction from the bottom, so that the disengagement operation is easy even in a narrow shaft, and the second thrust transmitting member is not dropped on the installation surface of the propulsion device, and the safety of the worker is eliminated. And damage to peripheral equipment.
【００１７】特に、前記係合凹部が前記第１推力伝達部
材の長手方向の少なくとも両端部に形成されてなる場合
には、短尺の推進シリンダによっても、前記第２推力伝
達部材の前記第１推力伝達部材に対する係合位置を、前
記推進シリンダの作動状態に応じて切り換えることによ
り、長尺の小口径管の埋設操作をも可能にする。In particular, when the engagement recess is formed at least at both ends in the longitudinal direction of the first thrust transmitting member, the first thrust of the second thrust transmitting member can be formed by a short propulsion cylinder. By switching the engagement position with respect to the transmission member according to the operation state of the propulsion cylinder, it is possible to embed a long small-diameter pipe.
【００１８】[0018]
【発明の実施の形態】以下、本発明の好適な実施の形態
を図面を参照しながら具体的に説明する。図１は本発明
の第１実施例に係る小口管径推進装置の全体構成を一部
を切開して示す側面図であり、図２は同正面図である。
なお、本実施例は左右に一対の推進シリンダが１段に配
されている型式の推進装置である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a side view showing the entire configuration of a small-bore-diameter thruster according to a first embodiment of the present invention, with a part thereof cut away, and FIG. 2 is a front view of the same.
This embodiment is a propulsion device of a type in which a pair of propulsion cylinders are arranged on the left and right in one stage.
【００１９】これら図において１は発進立坑Ａ内に設置
された推進装置を示し、正面から見て左右に一対のフレ
ーム２を有している。このフレーム２は小口径管３の推
進方向に平行な一対のＨ字鋼からなり、その長さ方向の
中間部において一対のフレーム２が前後２箇所をそれぞ
れ連結杆２ａで連結固定されている。また、各フレーム
２の前後端にはねじ式の反力受け４が螺裝されている。In these figures, reference numeral 1 denotes a propulsion device installed in a starting shaft A, which has a pair of frames 2 on the left and right as viewed from the front. The frame 2 is made of a pair of H-shaped steels parallel to the direction of propulsion of the small-diameter pipe 3, and a pair of frames 2 are connected and fixed at two front and rear portions by connecting rods 2 a at an intermediate portion in the longitudinal direction. A screw-type reaction force receiver 4 is screwed at the front and rear ends of each frame 2.
【００２０】符号５は推進シリンダを示し、この推進シ
リンダ５はそれぞれ各フレーム２の長手方向に平行に配
され、各フレーム２と所定の距離離間した上方に配され
ている。各推進シリンダ５のシリンダチューブ５ａのボ
トム部が、前記フレーム２の後端に立設されたブラケッ
ト６にピン７を介して枢支されている。本実施例による
前記推進シリンダ５は複動式油圧シリンダである。Reference numeral 5 denotes a propulsion cylinder. The propulsion cylinders 5 are arranged in parallel with the longitudinal direction of each frame 2 and are arranged above each frame 2 at a predetermined distance. The bottom portion of the cylinder tube 5a of each propulsion cylinder 5 is pivotally supported via a pin 7 to a bracket 6 erected at the rear end of the frame 2. The propulsion cylinder 5 according to the present embodiment is a double-acting hydraulic cylinder.
【００２１】また、図１及び図２において符号８ａ及び
８ｂは、前記推進シリンダ５と上下に所要の間隙空間を
もって配設される一対の第１の推力伝達部材であり、前
記推進シリンダ５と略同長で且つ推進シリンダ５のシリ
ンダチューブ５ａ外径に略等しい幅をもつ金属板材から
なる。この第１推力伝達部材８ａ，８ｂは左右一対の各
推進シリンダ５にそれぞれ配される。図示例によれば、
前記第１推進伝達部材８ａ，８ｂには、図 に示すごと
く長手方向の前端部、前端から略２／３の部位及び後端
部に、それぞれ長手方向に直交して相対する側縁に凹欠
部９が形成されている。この凹欠部９には後述する第２
推力伝達部材１３が係脱される。In FIGS. 1 and 2, reference numerals 8a and 8b denote a pair of first thrust transmitting members provided with a required gap space above and below the propulsion cylinder 5, and are substantially similar to the propulsion cylinder 5. It is made of a metal plate having the same length and a width substantially equal to the outer diameter of the cylinder tube 5a of the propulsion cylinder 5. The first thrust transmitting members 8a and 8b are disposed on a pair of right and left propulsion cylinders 5, respectively. According to the illustrated example,
As shown in the figure, the first propulsion transmission members 8a and 8b are respectively provided with recesses at the front ends, approximately two-thirds of the front ends, and at the rear ends in the longitudinal direction. A part 9 is formed. This recess 9 has a second
The thrust transmitting member 13 is disengaged.
【００２２】前記第１推力伝達部材８ａ，８ｂの後端は
図２に示すように矩形筒体８ｃに嵌着されて、その上下
位置を固定しており、しかも上部第１推力伝達部材８ａ
の後端部には窓部８ａ′が開口しており、その窓部８
ａ′に同第１推力伝達部材８ａの幅方向に架設された軸
部８ｄに鼓状ローラ１０が回転自在に取り付けられてい
る。この鼓状ローラ１０は前記シリンダチューブ５ａの
上部周面に当接して回転案内するため、上下の前記第１
推力伝達部材８ａ，８ｂと前記推進シリンダ５の後端部
との間の間隙空間を一定に維持する。As shown in FIG. 2, the rear ends of the first thrust transmitting members 8a and 8b are fitted to a rectangular cylindrical body 8c to fix the upper and lower positions thereof.
A window 8a 'is opened at the rear end of the window 8a.
A drum-shaped roller 10 is rotatably mounted on a shaft portion 8d provided in the width direction of the first thrust transmitting member 8a at a '. The drum-shaped roller 10 comes into contact with the upper peripheral surface of the cylinder tube 5a and guides the rotation thereof.
The gap space between the thrust transmitting members 8a, 8b and the rear end of the propulsion cylinder 5 is kept constant.
【００２３】前記第１推力伝達部材８ａ，８ｂの前端に
は、直方体のブロック８ｅが上下の第１推力伝達部材８
ａ，８ｂの間に挿入固着されており、同ブロック８ｅに
前記推進シリンダ５のシリンダロッド５ｂの先端がピン
１１を介して枢支されている。従って、推進シリンダ５
が作動によりシリンダロッド５ｂが伸縮すると、前記第
１推力伝達部材８ａ，８ｂは一体となって往復動するこ
とになる。At the front ends of the first thrust transmitting members 8a and 8b, a rectangular parallelepiped block 8e has upper and lower first thrust transmitting members 8a and 8b.
The distal end of a cylinder rod 5b of the propulsion cylinder 5 is pivotally supported via a pin 11 in the block 8e. Therefore, the propulsion cylinder 5
When the cylinder rod 5b expands and contracts due to the operation of the actuator, the first thrust transmitting members 8a and 8b reciprocate integrally.
【００２４】そして、前述のごとく矩形筒体８ｃ及びブ
ロック８ｅによって形態が保持された前記第１推力伝達
部材８ａ，８ｂの前端には、下方に垂設されたブラケッ
ト１２を介して転動ローラ１２ａ，１２ｂが取り付けら
れている。各転動ローラ１２ａ，１２ｂは上記フレーム
２の上面及び側面に当接して転動する。The rolling rollers 12a are connected to the front ends of the first thrust transmitting members 8a and 8b, the shape of which is maintained by the rectangular cylindrical body 8c and the block 8e, as described above, via the bracket 12 vertically provided downward. , 12b. Each of the rolling rollers 12a and 12b abuts on the top and side surfaces of the frame 2 to roll.
【００２５】図３は、本発明の構成部材である上記第１
推力伝達部材８ａ，８ｂと、同第１推力伝達部材８ａ，
８ｂに係脱する第２推力伝達部材１３との係合状態を示
している。同図によれば、本実施例による前記第２推力
伝達部材１３は全体が門型の形態をもつ金属製枠材から
なり、その左右の脚部１３ａが上下の前記第１推力伝達
部材８ａ，８ｂに形成された上記凹欠部９に係着する。
また、同第２推力伝達部材１３の水平枠部１３ｂの上面
には同じく門型に屈曲形成された金属棒材からなる把手
１３ｃが取り付けられている。同第２推力伝達部材１３
を上下の第１推力伝達部材８ａ，８ｂに係脱するには、
前記把手１３ｃを持って左右脚部１３ａを下方に向けた
状態で単に上下に昇降させるだけで達成される。FIG. 3 shows the first member, which is a component of the present invention.
Thrust transmitting members 8a, 8b, and first thrust transmitting members 8a, 8b,
8b shows an engagement state with the second thrust transmission member 13 engaged and disengaged with 8b. According to the figure, the second thrust transmitting member 13 according to the present embodiment is entirely made of a metal frame material having a gate-like form, and its left and right legs 13a are vertically arranged with the first thrust transmitting members 8a, 8a. 8b is engaged with the concave portion 9 formed above.
Further, a handle 13c made of a metal bar similarly bent and formed in a gate shape is attached to the upper surface of the horizontal frame portion 13b of the second thrust transmitting member 13. Second thrust transmitting member 13
To engage and disengage with the upper and lower first thrust transmitting members 8a and 8b,
This is achieved simply by vertically moving up and down with the left and right legs 13a facing downward while holding the handle 13c.
【００２６】前記第２推力伝達部材１３の推進方向の後
方に位置させて、前記第１推進伝達部材８ａ，８ｂと共
に左右の推進シリンダ５を跨ぐように、小口径管押板１
４が配される。図示例の推進装置１では、スクリュケー
シング用押板１５が前記小口径管押板１４とは別個に単
独で作動できるようにして設けられている。これらの構
成は公知であるため、ここでは前記小口径管押板１４の
構成について簡単に説明するに止める。前記小口径管押
板１４の左右両端部には耳部１４ａが突出した形態を有
し、これらの耳部１４ａには左右の各推進シリンダ５が
上記第１推力伝達部材８ａ，８ｂと共に挿通される矩形
状の挿通孔１４ｂが形成されており、前記第１推力伝達
部材８ａ，８ｂに形成された第２推力伝達部材１３の係
着部である凹欠部９に第２推力伝達部材１３を上述の簡
単な操作で係着することによって、各推進シリンダ５の
推進力が第１推力伝達部材８ａ，８ｂ及び第２推力伝達
部材１３を介して前記小口径管押板１４に伝達される。The small-diameter pipe push plate 1 is positioned rearward of the second thrust transmitting member 13 in the direction of propulsion and straddles the left and right propulsion cylinders 5 together with the first thrust transmitting members 8a and 8b.
4 are arranged. In the illustrated propulsion device 1, the screw casing push plate 15 is provided so as to be able to operate independently from the small-diameter pipe push plate 14. Since these configurations are publicly known, only the configuration of the small-diameter pipe pushing plate 14 will be briefly described here. Left and right ends of the small-diameter pipe push plate 14 have ears 14a projecting therefrom, and the left and right propulsion cylinders 5 are inserted into these ears 14a together with the first thrust transmitting members 8a and 8b. The first thrust transmitting members 8a and 8b have a rectangular insertion hole 14b formed therein, and the second thrust transmitting member 13 is inserted into the concave notch 9 which is an engagement portion of the second thrust transmitting member 13 formed in the first thrust transmitting members 8a and 8b. By engaging with the simple operation described above, the propulsion force of each propulsion cylinder 5 is transmitted to the small-diameter pipe push plate 14 via the first thrust transmission members 8a and 8b and the second thrust transmission member 13.
【００２７】前記小口径管押板１３の背面側中央部に
は、公知のごとくスクリュコンベヤ駆動装置１５が、そ
の図示せぬ駆動軸を前方に突出させて一体に固設されて
いる。この駆動装置１６と前記小口径管押板１３とは、
図１に破断面で示す連結部材１８を介して連結固定され
ている。同連結部材１８は前記推進シリンダ５及び第１
推力伝達部材８ａ，８ｂを挿通できる空洞を有する矩形
枠体から構成されており、その上下壁部には前記第１推
力伝達部材８ａ，８ｂに形成された凹欠部９に対応する
部位に第２推力伝達部材１３の脚部１３ａを挿通するた
めの脚部挿通孔１３ａが形成されている。また、前記連
結部材１８の底部にはブラケット１８ｂを介して車輪１
８ｃが取り付けられて、フレーム２上を転動すると共に
前記小口径管押板１３及び駆動装置１６の重量を支持し
ている。前記駆動装置１６の構成も特に規定するもので
はなく、従来の一般的な駆動装置が適用できる。As is well known, a screw conveyor driving device 15 is integrally fixed to the small-diameter tube pressing plate 13 at a central portion on the back side thereof, with a driving shaft (not shown) protruding forward. The driving device 16 and the small-diameter pipe pressing plate 13
It is connected and fixed via a connecting member 18 shown by a broken surface in FIG. The connecting member 18 is connected to the propulsion cylinder 5 and the first
It is formed of a rectangular frame having a cavity through which the thrust transmitting members 8a and 8b can be inserted, and has upper and lower wall portions at positions corresponding to the concave notches 9 formed in the first thrust transmitting members 8a and 8b. 2 A leg insertion hole 13a for inserting the leg 13a of the thrust transmitting member 13 is formed. The bottom of the connecting member 18 is connected to the wheel 1 via a bracket 18b.
8c is mounted to roll on the frame 2 and support the weight of the small-diameter pipe push plate 13 and the driving device 16. The configuration of the driving device 16 is not particularly limited, and a conventional general driving device can be applied.
【００２８】次に、本実施例による特に推進シリンダ５
を中心とする油圧ホース類の配管態様について詳述す
る。図４〜図６は同油圧ホースの配管図を示している。
これらの図によると、推進シリンダ５は複動式であっ
て、その油圧入口は同シリンダチューブ５ａの前後両端
部の２箇所に設けられている。その油圧ホース接続口５
ｃ，５ｄに接続される油圧チューブ１７ａ，１７ｂは金
属管からなり、上記下部の第１推力伝達部材８ｂと前記
推進シリンダ５との間の空隙空間に収容されてシリンダ
チューブ５ａと平行にそれぞれ後端へと延び、同後端に
て図５に示すごとく下方に屈曲されて可撓性を有する油
圧ホース１７ｃ，１７ｄを介して接続されている。この
ように前記油圧チューブ１７ａ，１７ｂが推進シリンダ
５のシリンダチューブ５ａの下方に配されるため、上方
からクレーン等により降りてくる図示を省略した先導管
や小口径管３と干渉することがなく、油圧路が挟み込み
などにより破壊することが防止できる。また、同油圧チ
ューブ１７ａ，１７ｂの下方にも下部の第１推力伝達部
材８ｂが配されているため、例えば掘進中において飛来
する土砂や礫による打撃が防がれ、損傷が防止される。Next, the propulsion cylinder 5 according to this embodiment will be described.
The piping mode of hydraulic hoses centered on the above will be described in detail. 4 to 6 show piping diagrams of the hydraulic hose.
According to these figures, the propulsion cylinder 5 is of a double-acting type, and its hydraulic pressure inlets are provided at two locations at the front and rear ends of the cylinder tube 5a. The hydraulic hose connection port 5
The hydraulic tubes 17a and 17b connected to the cylinders c and 5d are made of metal pipes, and are accommodated in the gap space between the lower first thrust transmitting member 8b and the propulsion cylinder 5 so as to be parallel to the cylinder tube 5a. It extends to the end, and is bent downward at the same rear end as shown in FIG. 5 and is connected via flexible hydraulic hoses 17c and 17d. Since the hydraulic tubes 17a and 17b are arranged below the cylinder tube 5a of the propulsion cylinder 5 as described above, they do not interfere with a not-shown leading pipe or a small-diameter pipe 3 which is lowered from above by a crane or the like. Also, it is possible to prevent the hydraulic path from being broken due to pinching or the like. Further, since the lower first thrust transmitting member 8b is also arranged below the hydraulic tubes 17a and 17b, for example, hitting by earth and sand or gravel flying during excavation is prevented, and damage is prevented.
【００２９】前記油圧ホース１７ｃ，１７ｄの下端は、
図６に示すごとく管継手を介して左右のフレーム２の間
を設置面に沿って全てが集約して配設された油圧供給側
及び油圧排出側の複数本の金属製油圧チューブ１７ｅ，
１７ｆと接続され、最後に左右のフレーム２の後端内側
に立設された油圧供給側と油圧排出側との各金属製油圧
チューブ１７ｇ，１７ｈに接続させている。これらの油
圧チューブ１７ｇ，１７ｈの上端は立坑外に設置された
図示せぬ油圧ユニットの接続口に可撓性の油圧ホースを
介して接続される。The lower ends of the hydraulic hoses 17c and 17d are
As shown in FIG. 6, a plurality of metal hydraulic tubes 17e on the hydraulic supply side and the hydraulic discharge side, all of which are collectively arranged along the installation surface between the left and right frames 2 via pipe joints,
17f, and finally connected to the metal hydraulic tubes 17g and 17h on the hydraulic supply side and the hydraulic discharge side which are provided upright inside the rear ends of the left and right frames 2, respectively. The upper ends of the hydraulic tubes 17g and 17h are connected to connection ports of a hydraulic unit (not shown) installed outside the shaft via a flexible hydraulic hose.
【００３０】こうした油圧ホース類の配管形態を採用す
ることができるのは、本発明の特徴部を構成するシリン
ダチューブ５ａがフレーム２の後端部から立設されたブ
ラケット６に枢着されて推進方向には不動であるがため
である。すなわち、前記シリンダチューブ５ａの固設
が、前記油圧ホース類の固設につながり、可能なかぎり
油圧配管類を装置外に露出させることが回避でき、その
結果、上述の効果に加えてシリンダロッド５ｂとともに
往復動するホース類を最小本数とすることを可能にして
いる。このことは、例えば駆動装置の上部に設置される
コントロールユニットの油圧回路数を減少させることに
もつながり、同ユニットの小型化にも貢献できるように
なる。The piping configuration of such hydraulic hoses can be adopted because the cylinder tube 5a constituting the characteristic part of the present invention is pivotally attached to the bracket 6 erected from the rear end of the frame 2 for propulsion. This is because they are immovable in the direction. That is, the fixed installation of the cylinder tube 5a leads to the fixed installation of the hydraulic hoses, and it is possible to avoid exposing the hydraulic piping outside the apparatus as much as possible. As a result, in addition to the above-described effects, the cylinder rod 5b This makes it possible to minimize the number of hoses that reciprocate together. This leads, for example, to a reduction in the number of hydraulic circuits of the control unit installed on the upper part of the drive device, which can contribute to downsizing of the unit.
【００３１】即ち、前述までの記載から理解できるよう
に、推進シリンダ５のシリンダチューブ５ａが推進方向
に不動であって、同方向の往復動はシリンダロッド５ｂ
に固設された上記第１及び第２の推力伝達部材８ａ，８
ｂ；１３であるため、油圧の供給管路も不動となること
から、油圧ホース類のうち接続口管を連結する僅かな部
分に可撓性の油圧ホースを用いるのみで、他の配管には
剛性のある金属製の油圧チューブが使用できるようにな
り、それらの油圧チューブは簡単に装置内の他機材と干
渉しない空間部に配設することを可能にしている。That is, as can be understood from the above description, the cylinder tube 5a of the propulsion cylinder 5 is immovable in the propulsion direction, and the reciprocation in the same direction is performed by the cylinder rod 5b.
The first and second thrust transmitting members 8a, 8
b; 13, since the hydraulic supply line is also immovable, only a flexible hydraulic hose is used for a small portion of the hydraulic hoses that connects the connection port pipes, and the other piping is used for other piping. Rigid metal hydraulic tubes can be used, and these hydraulic tubes can be easily arranged in a space that does not interfere with other equipment in the apparatus.
【００３２】さて、以上のごとく構成された本発明の上
記推進装置による小口径管の埋設操作を簡単に説明する
と、発進立坑Ａの内部に小口径推進装置１が据え付けら
れると、先ず図示せぬ先導管をフレーム２上の図示せぬ
載置台に載置するとともに、同先導管２の後端から突出
するスクリュコンベヤの接続軸端を駆動装置１６の駆動
軸に連結させる。このとき、第１推力伝達部材８ａ，８
ｂに係着する第２推力伝達部材１３の位置は、前記第１
推力伝達部材８ａ，８ｂの後端側に形成された凹欠部９
であり、前記軸端同士の心合わせをするため慎重に位置
決めなどの調整がなされる。The operation of burying a small-diameter pipe by the above-described propulsion device of the present invention will be briefly described. When the small-diameter propulsion device 1 is installed inside the starting shaft A, it is not shown first. The leading conduit is placed on a mounting table (not shown) on the frame 2, and the connecting shaft end of the screw conveyor projecting from the rear end of the leading conduit 2 is connected to the driving shaft of the driving device 16. At this time, the first thrust transmitting members 8a, 8
b, the position of the second thrust transmitting member 13 is
Recessed notch 9 formed on the rear end side of thrust transmitting members 8a, 8b
In order to align the shaft ends with each other, adjustment such as positioning is carefully performed.
【００３３】次いで、推進シリンダ５を伸長させると同
時に駆動装置１６の駆動を開始して、前記先導管の先端
に設けられたカッタヘッドを回転させ一回目の掘進を開
始する。推進シリンダ５が完全に伸長したら、その位置
で駆動装置１６を一旦停止させ、上記第２推力伝達部材
１３を前記凹欠部９から離脱させ、第１推力伝達部材８
ａ，８ｂの前端部に形成された凹欠部９に係着させる。
ここで、再び駆動装置１５を駆動させ第２回目の掘進を
開始する。推進シリンダ５が完全に伸長して、先導管の
後端部を発進立坑Ａ内に残した位置まで掘進が進むと、
前記先導管を地中に残した状態で駆動装置１６の駆動を
停止し、先導管から推進装置１を切り離したのちに、同
推進シリンダ５のシリンダロッド５ｂを収縮させて元位
置まで高速で後退させる。Next, at the same time as the propulsion cylinder 5 is extended, the driving of the driving device 16 is started, and the cutter head provided at the end of the front pipe is rotated to start the first excavation. When the propulsion cylinder 5 is completely extended, the driving device 16 is temporarily stopped at that position, the second thrust transmitting member 13 is detached from the concave notch 9, and the first thrust transmitting member 8 is moved.
a, 8b is engaged with the concave notch 9 formed at the front end.
Here, the driving device 15 is driven again to start the second excavation. When the propulsion cylinder 5 is completely extended and the excavation proceeds to a position where the rear end of the front conduit is left in the starting shaft A,
The driving of the driving device 16 is stopped in a state where the front conduit is left in the ground, and after the propulsion device 1 is separated from the front conduit, the cylinder rod 5b of the propulsion cylinder 5 is contracted to retreat to the original position at a high speed. Let it.
【００３４】この後退が完了すると、図示せぬスクリュ
ケーシングを挿入した小口径管３を発進立坑Ａ内に投入
して、スクリュケーシング内の図示せぬスクリュコンベ
ヤの先端軸部と前記先導管に内蔵されたスクリュコンベ
ヤの後端軸部とを連結させたのち、前記埋設管３と前記
先導管とを連結固定する。このときの小口径管３の位置
調整に先立って、本実施例装置がビニル管用の推進装置
であるため、先ず上記スクリュケーシング用押板１５を
単独に押し引きしてスクリュケーシングの位置決めを行
ったのち小口径管用押板１４をビニル管の後端に当接さ
せる。When the retreat is completed, the small-diameter pipe 3 into which the screw casing (not shown) is inserted is put into the starting shaft A, and is built into the tip shaft portion of the screw conveyor (not shown) in the screw casing and the front pipe. After connecting the rear end shaft portion of the screw conveyor, the buried pipe 3 and the front pipe are connected and fixed. Prior to the position adjustment of the small-diameter pipe 3 at this time, since the present embodiment is a propulsion device for a vinyl pipe, the screw casing push plate 15 was pushed and pulled independently to position the screw casing. Thereafter, the small-diameter pipe push plate 14 is brought into contact with the rear end of the vinyl pipe.
【００３５】こうしてスクリュ軸端同士の連結固定が終
わると、上記第２推力伝達部材１３を第１推力伝達部材
８ａ，８ｂの後端部に形成された凹欠部９に係着させ、
駆動装置１６を駆動すると共に推進シリンダ５を伸長さ
せて、第１回目の掘進と小口径管３の埋設を行う。この
とき、第１推力伝達部材８ａ，８ｂに係着する第２推力
伝達部材１３の位置は、上述の先導管の場合と同様に前
記第１推力伝達部材８ａ，８ｂの後端側に形成された凹
欠部９である。After the screw shaft ends have been connected and fixed in this way, the second thrust transmitting member 13 is engaged with the concave notch 9 formed at the rear end of the first thrust transmitting members 8a and 8b.
By driving the driving device 16 and extending the propulsion cylinder 5, the first excavation and the embedding of the small diameter pipe 3 are performed. At this time, the position of the second thrust transmitting member 13 engaged with the first thrust transmitting members 8a, 8b is formed on the rear end side of the first thrust transmitting members 8a, 8b as in the case of the above-mentioned front conduit. Recess 9.
【００３６】この連結作業が終了すると、推進シリンダ
５を伸長させると同時に駆動装置１６の駆動を開始し
て、掘進と同時に小口径管３の略１／２を地中に埋設す
る。この埋設が終了した時点で、前記駆動装置１６の駆
動を一旦停止させ、上記第２推力伝達部材１３を前記凹
欠部９から離脱させ、第１推力伝達部材８ａ，８ｂの前
端部に形成された凹欠部９に係着させる。ここで、再び
駆動装置１５を駆動させると同時に推進シリンダ５を作
動して第２回目の掘進と埋設とを開始する。推進シリン
ダ５が完全に伸長して、小口径管３の後端部が発進立坑
Ａ内の掘削開始位置に達すると、駆動装置１６の駆動を
停止し、推進装置１の駆動軸を小口径管３に挿入された
図示せぬスクリュコンベヤの後端軸部から切り離すとと
もに、推進シリンダ５を高速で収縮させて元位置へと復
帰させる。When this connection operation is completed, the driving of the drive unit 16 is started at the same time as the propulsion cylinder 5 is extended, and approximately half of the small-diameter pipe 3 is buried in the ground at the same time as excavation. When the embedding is completed, the driving of the driving device 16 is temporarily stopped, and the second thrust transmitting member 13 is separated from the concave notch 9, and formed at the front end of the first thrust transmitting members 8a and 8b. The recess 9 is engaged. Here, the driving device 15 is driven again, and at the same time, the propulsion cylinder 5 is operated to start the second excavation and burial. When the propulsion cylinder 5 is completely extended and the rear end of the small diameter pipe 3 reaches the excavation start position in the starting shaft A, the driving of the driving device 16 is stopped, and the drive shaft of the propulsion device 1 is connected to the small diameter pipe. The screw is cut off from the rear end shaft portion of the screw conveyor (not shown) inserted in 3, and the propulsion cylinder 5 is contracted at high speed to return to the original position.
【００３７】以上の操作を繰り返すことにより、必要本
数の埋設管５を順次埋設する。全ての埋設管５の埋設が
完了して図示せぬ到達立坑に達した前記先導管は図示せ
ぬクレーン等により到達立坑から地上へと運び出され
る。また、推進中に発生する排土は上記スクリュコンベ
ヤにより発進立坑Ａへと送られ、同立坑Ａから地上へと
搬出される。By repeating the above operation, the necessary number of buried pipes 5 are buried sequentially. The leading pipe, which has reached the reaching shaft (not shown) after all the buried pipes 5 have been buried, is carried out of the reaching shaft to the ground by a crane (not shown) or the like. In addition, the soil discharged during propulsion is sent to the starting shaft A by the screw conveyor, and is carried out from the shaft A to the ground.
【００３８】図７及び図８は本発明の第２実施例を示し
ており、この実施例では左右のフレーム２の上方に配さ
れる推進シリンダ５が上下に二基一対であり、そのため
図８に示すごとく上記第１推力伝達部材８ａ，８ｂを前
記上下に配された二基の推進シリンダ５の上方及び下方
に配すると共に、４個の油圧ホース接続口６ｃ，６ｄに
接続される４本の油圧チューブ１７ａ，１７ｂを全て上
下の推進シリンダ５の間に配設している。なお、推進装
置の操作手順と他の構成は上記第１実施例と実質的に変
わるところはなく、本実施例によっても既述したとおり
上記推進操作中に推進シリンダ５の設置位置は不動であ
るため、従来の機外に露出していた油圧ホース類のうち
駆動装置１６の油圧ホース類を除いて殆ど全てが装置内
及び他の機材との干渉が回避できる部位に固設されるこ
とになり、特に狭小な作業空間の有効利用がなされるば
かりでなく、作業の安全性及び油圧ホース類の損傷が少
なくなる。FIGS. 7 and 8 show a second embodiment of the present invention. In this embodiment, the propulsion cylinders 5 disposed above the left and right frames 2 are paired up and down. As shown in the figure, the first thrust transmitting members 8a, 8b are arranged above and below the two vertically arranged propulsion cylinders 5, and are connected to four hydraulic hose connection ports 6c, 6d. Are all disposed between the upper and lower propulsion cylinders 5. The operation procedure and other configuration of the propulsion device are not substantially different from those of the first embodiment, and the installation position of the propulsion cylinder 5 is fixed during the propulsion operation as described above in this embodiment. For this reason, almost all of the hydraulic hoses exposed outside the conventional machine except the hydraulic hoses of the drive device 16 are fixedly installed in the device and at a portion where interference with other equipment can be avoided. In particular, not only is the effective use of the small work space, but also the work safety and the damage to the hydraulic hoses are reduced.
【図１】本発明の第１実施例である小口径管推進装置の
全体構成を一部切開して示す側面図である。FIG. 1 is a side view showing the entire configuration of a small-diameter pipe propulsion apparatus according to a first embodiment of the present invention, partially cut away.
【図２】図１のＩ−Ｉ線に沿う矢視図である。FIG. 2 is a view as viewed in the direction of arrows along the line II in FIG. 1;
【図３】第１及び第２の推力伝達部材の係着状態を説明
するための正面図である。FIG. 3 is a front view for explaining an engaged state of first and second thrust transmitting members.
【図４】本発明に適用される油圧配管の配置形態を示す
推進装置の側面図である。FIG. 4 is a side view of a propulsion device showing an arrangement of hydraulic pipes applied to the present invention.
【図５】同平面図である。FIG. 5 is a plan view of the same.
【図６】図５のII-II 線に沿う矢視図である。FIG. 6 is a view taken along the line II-II in FIG. 5;
【図７】本発明の第１実施例である小口径管推進装置の
全体構成を概略で示す側面図である。FIG. 7 is a side view schematically showing the entire configuration of the small-diameter pipe propulsion apparatus according to the first embodiment of the present invention.
【図８】第１及び第２の推力伝達部材の係着状態及び油
圧配管を説明するための正面図である。FIG. 8 is a front view for explaining an engaged state of first and second thrust transmitting members and hydraulic piping.
１ 推進装置 ２ フレーム ２ａ 連結部材 ３ 小口径管 ４ 反力受け ５ 推進シリンダ ５ａ シリンダチューブ ５ｂ シリンダロッド ６ ブラケット ７ ピン ８ａ，８ｂ 上下の第１推力伝達部材 ８ａ′ 窓部 ８ｃ 矩形筒体 ８ｄ 軸部 ８ｅ ブロック ９ 凹欠部 １０ 鼓状ローラ １１ ピン １２ ブラケット １２ａ，１２ｂ 転動ローラ（転動子） １３ 第２推力伝達部材 １３ａ 脚部 １３ｂ 水平枠部 １３ｃ 把手 １４ 小口径管用押板 １４ａ 耳部 １４ｂ 挿通孔 １５ スクリュケーシング用押板 １６ 駆動装置 １７ａ，１７ｂ 油圧チューブ １７ｃ，１７ｄ 油圧ホース １７ｅ〜１７ｈ 油圧チューブ １８ 連結部材 １８ａ 脚部挿通孔 １８ｂ ブラケット １８ｃ 車輪 DESCRIPTION OF SYMBOLS 1 Propulsion device 2 Frame 2a Connecting member 3 Small diameter pipe 4 Reaction force receiver 5 Propulsion cylinder 5a Cylinder tube 5b Cylinder rod 6 Bracket 7 Pin 8a, 8b Upper and lower first thrust transmission members 8a 'Window 8c Rectangular cylinder 8d Shaft 8e Block 9 Concave Notch 10 Hourglass Roller 11 Pin 12 Bracket 12a, 12b Rolling Roller (Roller) 13 Second Thrust Transmission Member 13a Leg 13b Horizontal Frame 13c Handle 14 Push Plate for Small Diameter Pipe 14a Ear 14b Insertion hole 15 Screw casing push plate 16 Drive device 17a, 17b Hydraulic tube 17c, 17d Hydraulic hose 17e-17h Hydraulic tube 18 Connecting member 18a Leg insertion hole 18b Bracket 18c Wheel
Claims (7)
へ埋設する小口径管埋設機の推進装置であって、 左右一対の各フレームの上方にそれぞれ配設される少な
くとも一基の推進シリンダと、 前記小口径管の後端面に当接して前記推進シリンダ推進
力により前記小口径管を推進させる押板と、 前記推進シリンダの推進力を前記押板に伝達する推力伝
達部材とを有し、 前記推進シリンダのシリンダチューブが前記フレームの
後端部に設置された反力部材に固設され、前記推力伝達
部材が前記推進シリンダのピストンロッド端に固着され
てなり、 前記推力伝達部材が、前記各推力シリンダの長手方向に
沿って、左右の各シリンダチューブと上下方向に離間し
て配された少なくとも上下一対の第１推力伝達部材と、
同第１推力伝達部材に係脱するとともに前記押板に当接
可能な形態を有する第２推力伝達部材とからなり、 前記シリンダチューブと上下に配された前記第１推力伝
達部材との間に形成される空間部に推進シリンダの作動
用油圧配管が配されてなる、ことを特徴とする小口径管
埋設機の推進装置。A propulsion device for a small-diameter pipe burying machine installed in a starting shaft and burying a small-diameter pipe in the ground, comprising at least one of a pair of left and right frames disposed above each of the frames. A propulsion cylinder, a push plate that abuts on a rear end surface of the small-diameter pipe to propel the small-diameter pipe by the propulsion cylinder thrust, and a thrust transmission member that transmits the propulsion force of the propulsion cylinder to the push plate. A cylinder tube of the propulsion cylinder is fixed to a reaction member provided at a rear end of the frame, and the thrust transmission member is fixed to a piston rod end of the propulsion cylinder; Along the longitudinal direction of each of the thrust cylinders, at least a pair of first thrust transmission members disposed vertically and spaced apart from each other left and right cylinder tubes,
A second thrust transmitting member having a form capable of engaging and disengaging from the first thrust transmitting member and abutting on the push plate, between the cylinder tube and the first thrust transmitting member disposed vertically. A propulsion device for a small-diameter pipe burying machine, wherein a hydraulic pipe for operating a propulsion cylinder is disposed in a space formed.
略等しい長さを有する板材からなり、その板幅が前記シ
リンダチューブの外径にほぼ等しく設定されてなる請求
項１記載の推進装置。2. The propulsion device according to claim 1, wherein the first thrust transmitting member is formed of a plate having a length substantially equal to that of the thrust cylinder, and a width of the plate is set substantially equal to an outer diameter of the cylinder tube.
基の推進シリンダが配されてなる請求項１又は２記載の
推進装置。3. The propulsion device according to claim 1, wherein one propulsion cylinder is disposed above each of the left and right frames.
それぞれ二基の推進シリンダが配されてなる請求項１又
は２記載の推進装置。4. The propulsion device according to claim 1, wherein at least two propulsion cylinders are disposed above the left and right frames.
部が前記フレーム上を転動する転動子を有してなる請求
項１〜４のいずれかに記載の推進装置。5. The propulsion device according to claim 1, wherein a front end portion of said first thrust transmitting member in a longitudinal direction has a rolling element rolling on said frame.
記第２推力伝達部材が係脱する少なくとも一対の係合凹
部を有し、前記第２推力伝達部材が前記係合凹部に係合
する脚部を有する略門型の枠体からなる請求項１〜５の
いずれかに記載の推進装置。6. A left and right side edge of the first thrust transmitting member has at least a pair of engagement recesses to which the second thrust transmission member engages and disengages, and the second thrust transmission member engages with the engagement recess. The propulsion device according to any one of claims 1 to 5, wherein the propulsion device comprises a substantially gate-shaped frame having legs that fit together.
長手方向の少なくとも両端部に形成されてなる請求項６
記載の推進装置。7. The first thrust transmitting member is formed at least at both ends in a longitudinal direction of the first thrust transmitting member.
Propulsion device as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08048297A JP3781145B2 (en) | 1997-03-31 | 1997-03-31 | Propulsion device for small diameter pipe burying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08048297A JP3781145B2 (en) | 1997-03-31 | 1997-03-31 | Propulsion device for small diameter pipe burying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10273999A true JPH10273999A (en) | 1998-10-13 |
| JP3781145B2 JP3781145B2 (en) | 2006-05-31 |
Family
ID=13719507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08048297A Expired - Fee Related JP3781145B2 (en) | 1997-03-31 | 1997-03-31 | Propulsion device for small diameter pipe burying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3781145B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116875788A (en) * | 2023-07-17 | 2023-10-13 | 南通华东油压科技有限公司 | Aging treatment device for multi-loop hydraulic cylinder casting |
-
1997
- 1997-03-31 JP JP08048297A patent/JP3781145B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116875788A (en) * | 2023-07-17 | 2023-10-13 | 南通华东油压科技有限公司 | Aging treatment device for multi-loop hydraulic cylinder casting |
| CN116875788B (en) * | 2023-07-17 | 2024-04-02 | 南通华东油压科技有限公司 | Aging treatment device for multi-loop hydraulic cylinder casting |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3781145B2 (en) | 2006-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5289887A (en) | Method of operating an earth boring machine | |
| US20090220305A1 (en) | Method and device for reconstructing old underground pipes | |
| US4306626A (en) | Hydraulic earth boring machine | |
| US4519570A (en) | Inside corner concrete form unit | |
| KR100832270B1 (en) | Semi-shield type boring machine | |
| JPH10273999A (en) | Pipe jacking device for small bore pipe burrying machine | |
| WO1991011563A1 (en) | Method of and apparatus for laying pipes | |
| JP2510302Y2 (en) | Propulsion device for small diameter tube propulsion machine | |
| US3988003A (en) | Pipe guide means for a rod and pipe pusher | |
| JP2837394B2 (en) | Pipe propulsion machine | |
| US3612194A (en) | Earth-boring machine | |
| EP1028226A2 (en) | Method and device for constructing an underground tunnel | |
| JP3736843B2 (en) | Universal propulsion machine | |
| JP2948198B1 (en) | Manual hydraulic plumbing machine | |
| EP1027529B1 (en) | Apparatus for bending and cutting cable in rock bolting equipment | |
| JP4239142B2 (en) | Drilling rig | |
| US3610345A (en) | Earth boring machine carriage with detachable pusher ring and power frames | |
| JP2618354B2 (en) | Excavator | |
| JP3179643B2 (en) | Piping equipment for small diameter pipe propulsion machines | |
| JPH07166538A (en) | Cutter for forming partition-wall joining section | |
| EP1488900A2 (en) | Forward driving system for use in drilling masonry structures | |
| JP2006045773A (en) | Underground jacking device | |
| JPH042237Y2 (en) | ||
| JPH09158675A (en) | Propelling mechanism of excavation propelling device of steel pipe or the like | |
| JP4160931B2 (en) | Pipe thruster pusher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20050803 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050823 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20051012 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20060228 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20060301 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100317 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100317 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110317 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120317 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130317 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140317 Year of fee payment: 8 |
|
| LAPS | Cancellation because of no payment of annual fees |