JPH0343436B2 - - Google Patents
Info
- Publication number
- JPH0343436B2 JPH0343436B2 JP60275882A JP27588285A JPH0343436B2 JP H0343436 B2 JPH0343436 B2 JP H0343436B2 JP 60275882 A JP60275882 A JP 60275882A JP 27588285 A JP27588285 A JP 27588285A JP H0343436 B2 JPH0343436 B2 JP H0343436B2
- Authority
- JP
- Japan
- Prior art keywords
- jack
- propulsion jack
- propulsion
- segment
- cylinder
- 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
- 238000005452 bending Methods 0.000 description 6
- 230000005641 tunneling Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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、曲線状の掘削ができるシールド掘進
機の推進装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a propulsion device for a shield excavator that can perform curved excavation.
第２図は従来のシールド掘進機の縦断側面図で
ある。図において、１及び２はシールド掘進機の
外殻を長手方向に分割して形成された前胴と後胴
であり、両者はシール部材３を装着した屈曲連結
部４により屈曲自在に連結されている。５は前胴
１を後胴２に対して屈曲させる屈曲用ジヤツキで
あり、そのピストンロツド６の先端及びシリンダ
７の基端はそれぞれ前胴１及び後胴２の内周上の
ブラケツト８，９にピン１０，１１により枢着さ
れている。１２は前胴１の内周に前胴１の軸線と
平行に配設された推進ジヤツキで、そのシリンダ
１３をジヤツキガイド１５に挿通したうえで基端
を受圧板１６に固着している。またピストンロツ
ド１４の先端には球面継手１７を介して押圧体１
８が連設され、押圧体１８によつてセグメント２
０の先端面を押し前胴１を推進するようになつて
いる。なお図中、２１は掘削機、２２はセグメン
ト２０の組立旋工用のエレクタ装置である。
FIG. 2 is a longitudinal sectional side view of a conventional shield tunneling machine. In the figure, 1 and 2 are a front body and a rear body formed by dividing the outer shell of the shield tunneling machine in the longitudinal direction, and both are connected in a flexible manner by a bending connection part 4 equipped with a seal member 3. There is. 5 is a bending jack for bending the front body 1 with respect to the rear body 2, and the tip of the piston rod 6 and the base end of the cylinder 7 are attached to brackets 8 and 9 on the inner circumferences of the front body 1 and the rear body 2, respectively. It is pivotally connected by pins 10 and 11. Reference numeral 12 denotes a propulsion jack disposed on the inner periphery of the front shell 1 in parallel with the axis of the front shell 1. Its cylinder 13 is inserted through a jack guide 15 and its base end is fixed to a pressure receiving plate 16. In addition, a pressing body 1 is connected to the tip of the piston rod 14 via a spherical joint 17.
8 are connected in series, and the segment 2 is pressed by the pressing body 18.
The front barrel 1 is propelled by pushing the front end surface of the front barrel 1. In the figure, 21 is an excavator, and 22 is an erector device for assembling and turning the segments 20.
上記の推進ジヤツキ１２により前胴１を推進さ
せるには、油圧操作により推進ジヤツキ１２のピ
ストンロツド１３を伸長させ押圧体１８でもつて
セグメント２０の先端面を押圧するのである。そ
うすれば推進ジヤツキ１２の推進力は受圧板１６
を介して前胴１に伝達され、後胴２を伴いながら
前胴１が前進する。 In order to propel the front body 1 by the above-mentioned propulsion jack 12, the piston rod 13 of the propulsion jack 12 is extended by hydraulic operation, and the pushing body 18 presses the tip end surface of the segment 20. Then, the propulsive force of the propulsion jack 12 will be transferred to the pressure receiving plate 16.
is transmitted to the front body 1 through the front body 1, and the front body 1 moves forward accompanied by the rear body 2.
従来のシールド掘進機の推進装置は、上記のよ
うに推進ジヤツキを前胴側に固定していたので、
第３図ａに示すように推進ジヤツキ１２を伸長す
ると、屈曲の外側では押圧体１８が後胴２の内壁
と干渉してしまう。そこで、この干渉を回避する
ために、前胴１のジヤツキガイド１５に弾性体１
９を設けている。また、第３図ｂに示すように屈
曲の内側では押圧体１８は後胴２の内壁から離
れ、セグメント２０の中心を押せなくなる。いず
れにしても推進ジヤツキ１２の軸線はセグメント
２０に対し偏心し傾く。
In conventional shield tunneling machine propulsion devices, the propulsion jack was fixed to the front fuselage as described above.
When the propulsion jack 12 is extended as shown in FIG. 3a, the pressing body 18 interferes with the inner wall of the rear body 2 on the outside of the bend. Therefore, in order to avoid this interference, an elastic body is attached to the jack guide 15 of the front body 1.
There are 9. Moreover, as shown in FIG. 3b, the pressing body 18 separates from the inner wall of the rear body 2 on the inside of the bend, and cannot press the center of the segment 20. In any case, the axis of the propulsion jack 12 is eccentric and inclined relative to the segment 20.
したがつて、折り曲げ角度をある程度以上大き
くするとセグメントが破損することがあつた。こ
のために、推進ジヤツキを後胴側に固定したもの
が提案されているが、推進ジヤツキとセグメント
との傾きはなくなるものの、推進ジヤツキの推進
力をまず後胴で受けなければならないため後胴の
構造が強度上不利となる。また、前胴からの力を
屈曲用ジヤツキを介して後胴に伝達するため屈曲
用ジヤツキの容量を大きくとらなければならない
という問題点があつた。 Therefore, if the bending angle is increased beyond a certain level, the segments may be damaged. For this reason, a system in which the propulsion jack is fixed to the rear fuselage side has been proposed, but although the inclination between the propulsion jack and the segment is eliminated, the propulsion force of the propulsion jack must first be received by the rear fuselage, so the rear fuselage is fixed. The structure is disadvantageous in terms of strength. Another problem was that the bending jack had to have a large capacity in order to transmit the force from the front body to the rear body through the bending jack.
本発明に係るシールド掘進機の推進装置は、前
後に分割された前胴と後胴をシール部材を介して
屈曲自在に連結してなるシールド掘進機におい
て、後胴の内周に後胴の軸線と平行に推進ジヤツ
キを配設すると共に、推進ジヤツキをジヤツキガ
イドに摺動自在に挿通し、推進ジヤツキのピスト
ンロツド先端にセグメント先端面と当接する押圧
体を球面継手を介して連設し、推進ジヤツキのシ
リンダ基端を前胴内に設けた受圧板に摺動可能に
当接してなるものである。
A propulsion device for a shield tunneling machine according to the present invention is a shield tunneling machine in which a front trunk and a rear trunk, which are divided into front and rear parts, are connected in a flexible manner via a sealing member. At the same time, the propulsion jack is slidably inserted into the jack guide, and a pressing body that contacts the segment tip surface is connected to the tip of the piston rod of the propulsion jack via a spherical joint. The base end of the cylinder is slidably abutted against a pressure receiving plate provided in the front body.
本発明においては、後胴の軸線と平行に推進ジ
ヤツキを設けたため、その推進ジヤツキのピスト
ンロツド先端に連設した押圧体によつてセグメン
トを同心的に押しこの押圧点を推進ジヤツキの反
力点とすることができる。しかも、推進ジヤツキ
は摺動自在なジヤツキガイドによつて後胴内周に
支持され推進ジヤツキのシリンダ基端が前胴側の
受圧板に当接するよう設けられているので、大き
な推進力を後胴に伝達することがない。
In the present invention, since the propulsion jack is provided parallel to the axis of the rear fuselage, the segment is concentrically pressed by the pressing body connected to the tip of the piston rod of the propulsion jack, and this pressing point is used as the reaction force point of the propulsion jack. be able to. Furthermore, the propulsion jack is supported on the inner periphery of the rear shell by a slidable jack guide, and the base end of the cylinder of the propulsion jack is placed in contact with the pressure receiving plate on the front shell side, so a large propulsive force is applied to the rear shell. There is nothing to communicate.
以下、本発明の一実施例を図により説明する。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図ａ，ｂはこの実施例の屈曲の外側及び屈
曲の内側の推進ジヤツキを示す縦断側面図であ
る。なお、第２図に示したものと同一のものは同
一符号を付して説明は省略する。図において、２
５は後胴２の内周に配設されたジヤツキガイドで
あり、推進ジヤツキ２６の軸線が後胴２の軸線と
平行になるようにシリンダ２７を摺動自在に挿通
して支持している。推進ジヤツキ２６のピストン
ロツド２８の先端には第２図と同様に球面継手１
７を介して押圧体１８が連設され押圧体１８によ
つてセグメント２０の先端面を同心的に押圧す
る。推進ジヤツキ２６の基端は前胴１の内周に配
設された受圧板１６に摺動可能に当接している。
すなわち、この推進ジヤツキ２６はシリンダ２７
胴部を後胴２内のジヤツキガイド２５に摺動自在
に支持されたうえでセグメント２０と前胴１側の
受圧板１６の間でピストンロツド２８先端の押圧
体１８及びシリンダ２７基端をそれぞれ当接させ
後胴２の軸線と平行に伸縮させるものである。 Figures 1a and 1b are longitudinal sectional side views showing the propulsion jacks on the outside of the bend and on the inside of the bend in this embodiment. Components that are the same as those shown in FIG. 2 are denoted by the same reference numerals, and the description thereof will be omitted. In the figure, 2
Reference numeral 5 denotes a jack guide disposed on the inner periphery of the rear body 2, through which the cylinder 27 is slidably inserted and supported so that the axis of the propulsion jack 26 is parallel to the axis of the rear body 2. At the tip of the piston rod 28 of the propulsion jack 26, there is a spherical joint 1 as shown in FIG.
A pressing body 18 is connected to the segment 20 via 7, and the pressing body 18 concentrically presses the distal end surface of the segment 20. The proximal end of the propulsion jack 26 is slidably in contact with a pressure receiving plate 16 disposed on the inner periphery of the front body 1.
That is, this propulsion jack 26 is connected to the cylinder 27.
The body is slidably supported by the jack guide 25 in the rear body 2, and the pressing body 18 at the tip of the piston rod 28 and the base end of the cylinder 27 are brought into contact between the segment 20 and the pressure receiving plate 16 on the front body 1 side, respectively. The rear body 2 is expanded and contracted in parallel with the axis of the rear body 2.
したがつて、第１図ａ，ｂに示すように、屈曲
の外側、屈曲の内側のいずれにおいても推進ジヤ
ツキ２６の軸線は後胴２の軸線と平行を保つため
押圧体１８は常にセグメント２０の中心を押す。
すなわち、この推進ジヤツキ２６の押圧点はセグ
メント２０に対して同心的な反力点となる。そし
て、推進ジヤツキ２６のシリンダ２７の基端は前
胴１内の受圧板１６を押し前胴１を推進せしめ
る。そのため、前胴１側からの力が後胴２にかか
ることがなく、推進ジヤツキ２６の容量を大きく
する必要もない。 Therefore, as shown in FIGS. 1a and 1b, the axis of the propulsion jack 26 remains parallel to the axis of the rear body 2 both on the outside of the bend and on the inside of the bend, so that the pressing body 18 is always aligned with the segment 20. Press the center.
That is, the pressing point of the propulsion jack 26 becomes a reaction force point concentric with the segment 20. The base end of the cylinder 27 of the propulsion jack 26 presses the pressure receiving plate 16 in the front shell 1 to propel the front shell 1. Therefore, no force from the front body 1 side is applied to the rear body 2, and there is no need to increase the capacity of the propulsion jack 26.
以上のように本発明によれば、ジヤツキガイド
によつて推進ジヤツキを後胴の軸線と平行に摺動
自在に支持したので、セグメントと同心的な反力
点を有する推進ジヤツキによつて前胴を推進させ
ることができる。そのため、前胴側からの大きな
力が後胴にかかることがないので、推進ジヤツキ
の容量を大きくすることなく、セグメントの破損
を防ぐ効果を奏する。
As described above, according to the present invention, since the propulsion jack is slidably supported by the jack guide in parallel with the axis of the rear fuselage, the front fuselage is propelled by the propulsion jack having a reaction force point concentric with the segment. can be done. Therefore, since a large force from the front fuselage side is not applied to the rear fuselage, it is possible to prevent damage to the segments without increasing the capacity of the propulsion jack.
第１図ａ，ｂは本発明の実施例の屈曲の外側及
び屈曲の内側の推進ジヤツキを示す縦断側面図、
第２図は従来のシールド掘進機全体の縦断側面
図、第３図ａ，ｂは従来の屈曲の外側及び屈曲の
内側の推進ジヤツキを示す縦断側面図である。
１：前胴、２：後胴、３：シール部材、１６：
受圧板、１７：球面継手、１８：押圧体、２０：
セグメント、２５：ジヤツキガイド、２６：推進
ジヤツキ、２７：シリンダ、２８：ピストンロツ
ド。
1a and 1b are longitudinal sectional side views showing the propulsion jack on the outside of the bend and the inside of the bend in an embodiment of the present invention;
FIG. 2 is a longitudinal side view of the entire conventional shield tunneling machine, and FIGS. 3a and 3b are longitudinal side views showing the conventional propulsion jack on the outside of the bend and on the inside of the bend. 1: Front body, 2: Rear body, 3: Seal member, 16:
Pressure receiving plate, 17: Spherical joint, 18: Pressing body, 20:
Segment, 25: Jack guide, 26: Propulsion jack, 27: Cylinder, 28: Piston rod.
Claims (1)
結してなるシールド掘進機において、前記後胴の
内周に該後胴の軸線と平行に配設された推進ジヤ
ツキと、該推進ジヤツキのシリンダを摺動自在に
挿通して支持するジヤツキガイドと、前記推進ジ
ヤツキのピストンロツド先端に連設された押圧体
とからなり、前記押圧体はセグメントの先端面に
当接し、前記シリンダの基端は前胴内に設けられ
た受圧板に摺動可能に当接してなることを特徴と
するシールド掘進機の推進装置。1. A shield excavator comprising a front body and a rear body which are divided into front and rear halves and which are connected in a flexible manner. It consists of a jack guide that slidably inserts and supports the cylinder, and a pressing body connected to the tip of the piston rod of the propulsion jack, the pressing body abuts the distal end surface of the segment, and the proximal end of the cylinder A propulsion device for a shield excavator, characterized in that it is slidably abutted on a pressure receiving plate provided in a front shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27588285A JPS62137394A (en) | 1985-12-10 | 1985-12-10 | Propulsion device for shield excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27588285A JPS62137394A (en) | 1985-12-10 | 1985-12-10 | Propulsion device for shield excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62137394A JPS62137394A (en) | 1987-06-20 |
| JPH0343436B2 true JPH0343436B2 (en) | 1991-07-02 |
Family
ID=17561748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27588285A Granted JPS62137394A (en) | 1985-12-10 | 1985-12-10 | Propulsion device for shield excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62137394A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60391Y2 (en) * | 1979-03-23 | 1985-01-08 | 日立造船株式会社 | Propulsion device for shield tunneling machine |
-
1985
- 1985-12-10 JP JP27588285A patent/JPS62137394A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62137394A (en) | 1987-06-20 |
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