JPH0511189B2 - - Google Patents

Info

Publication number
JPH0511189B2
JPH0511189B2 JP62088444A JP8844487A JPH0511189B2 JP H0511189 B2 JPH0511189 B2 JP H0511189B2 JP 62088444 A JP62088444 A JP 62088444A JP 8844487 A JP8844487 A JP 8844487A JP H0511189 B2 JPH0511189 B2 JP H0511189B2
Authority
JP
Japan
Prior art keywords
shield
ring
brackets
packing material
end surface
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
Application number
JP62088444A
Other languages
Japanese (ja)
Other versions
JPS63255494A (en
Inventor
Tsunesuke Kubo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP8844487A priority Critical patent/JPS63255494A/en
Publication of JPS63255494A publication Critical patent/JPS63255494A/en
Publication of JPH0511189B2 publication Critical patent/JPH0511189B2/ja
Granted legal-status Critical Current

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  • 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、トンネル工事用掘進機に関してのも
のである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an excavator for tunnel construction.

〔従来の技術〕[Conventional technology]

従来は、前面側にロータリカツターを有する前
部シールドの後部に後部シールドの前部を屈折自
在に連結して構成するトンネル工事用掘進機にお
いて、前部部シールドの両側寄り間に中折れ用ジ
ヤツキをそれぞれ介装したり、また、中心の支軸
を中心にして相互に回動できるようにするととも
に両側寄り間に中折れ用ジヤツキをそれぞれ介装
して屈折自在に連結する構造になつていた。
Conventionally, in tunneling machines that are configured by bendably connecting the front part of the rear shield to the rear part of the front shield that has a rotary cutter on the front side, a center-bending cutter is used between both sides of the front shield. It has a structure in which a jack is inserted in each case, or a jack is inserted between each side so that they can be bent freely, so that they can mutually rotate around a central support shaft, and a jack for bending is inserted between both sides. Ta.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

そのような構造であると、前シールドの旋回中
心が水平方向に折れることになつて側面の抵抗が
大きくなつたり両シールドが干渉したりして不具
合が生じ、前部シールドが左右方向のみの屈折し
かできずに掘進性能が制限されてしまい、また、
屈折時には土砂や水がその間より侵入しやすくて
内部の作業者や器械器具に支障が生じるといつた
問題点を有していた。
With such a structure, the center of rotation of the front shield will bend horizontally, causing problems such as increased resistance on the sides or interference between the two shields, and the front shield bending only in the left and right direction. This limits excavation performance, and
The problem was that during bending, it was easier for dirt and water to enter than between the bends, causing problems for workers and equipment inside.

〔問題点を解決するための手段〕[Means for solving problems]

本発明は、その問題点を解決し、前部シールド
が上下左右方向に良好に屈折できて運行屈進性を
向上させることができるとともに内部に土砂や水
が侵入しないようにしたものであり、そのため、
両シールド間内方のリングには、前部シールド内
に連結した両前方ブラケツトの後部と、後部シー
ルド内に連結した両後方ブラケツトの前部とを、
相互に直交する方向の軸心を中心にして回動でき
るようそれぞれ枢着し、衝合する両シールドの連
接面は曲面を有したリング状に形成するととも
に、両シールドの外周端面間には伸縮自在のパツ
キン材を回想して構成したものである。
The present invention solves this problem, and allows the front shield to be bent well in the vertical and horizontal directions, improving maneuverability and preventing dirt and water from entering the interior. Therefore,
The inner ring between both shields has the rear parts of both front brackets connected inside the front shield and the front parts of both rear brackets connected inside the rear shield.
The two shields are pivoted so that they can rotate about axes in directions perpendicular to each other, and the connecting surfaces of the abutting shields are formed into a ring shape with a curved surface. It was constructed by reminiscing about the freely available packing material.

〔作用) したがつて、前部シールドは連接面が常に衝合
して旋回中心が変らない状態で、リングに対し上
下方向に回転して屈折できるとともに、リングを
回動させて左右方向に屈折できることになり、ま
た、そのように屈折しても、パツキン材の介装に
より土砂や水が侵入することを防止できることに
なる。
[Function] Therefore, the front shield can be rotated vertically relative to the ring and refracted while the connecting surfaces are always in contact with each other and the center of rotation remains unchanged, and it can also be refracted horizontally by rotating the ring. Even if it is bent in this way, it is possible to prevent dirt and water from entering by interposing the packing material.

〔実施例〕〔Example〕

次に、図面に示す実施例について説明する。A
は前部シールドで、その前端部aには矢印イで示
すように土砂が流れこむ複数の孔7を形成し、矢
印ロ,ハで示すようにオイルが流動する油圧モー
タ8かから延出する回転軸9を前端面aの中心部
に嵌挿して前方へ突設し、多数のカツター1を固
設した十字状のカツター台枠10の中心部に前記
回転軸9を嵌挿して固設し、前記シールドAの内
方には、前記孔7より流れこむ土砂を搬出するた
めのスクリユーコンベア11を配備し、前部シー
ルドAの後部には後部シールドBの前部を連結す
るようにして、従来形同様にトンネル工事用掘進
機を構成する。
Next, the embodiment shown in the drawings will be described. A
is a front shield, and its front end a has a plurality of holes 7 through which earth and sand flows as shown by arrows A, and extends from a hydraulic motor 8 through which oil flows as shown by arrows B and C. A rotating shaft 9 is fitted into the center of the front end surface a and protrudes forward, and the rotating shaft 9 is fitted into the center of a cross-shaped cutter frame 10 on which a number of cutters 1 are fixed. , A screw conveyor 11 for carrying out the earth and sand flowing in from the hole 7 is provided inside the shield A, and the front part of the rear shield B is connected to the rear part of the front shield A. , constitutes a tunnel excavating machine similar to the conventional type.

前記前部シールドAの後端面側には、該後端面
より小径となつて曲面を有する截頭円錐状のリン
グ状雄形連接面5を一体に突出形成し、前記後部
シールドBの前端面側には、該前端面より小径と
なつて曲面を有する截頭円錐状のリング状雌形連
接面6を、前記連接面5に嵌接できるように突出
形成し、両連接面5,6が嵌接する状態でその外
周に被覆できるゴム製パツキン材Cの中央外周に
は膨出部12を形成するとともに、該パツキン材
Cの両側には両シールドA,Bの端面に接合でき
る鍔部13,14をそれぞれ形成し、両鍔部1
3,14の内側面には鋼製リング15,15をそ
れぞれ当接するとともに、両リング15にはコ状
の多数のブラケツト16を嵌合し、各ブラケツト
16の孔17に嵌挿する各ボルト18を鍔部1
3,14から両シールドA,Bの端面にそれぞれ
挿着して固定し構成する。
On the rear end surface side of the front shield A, a truncated conical ring-shaped male connecting surface 5 having a curved surface and a smaller diameter than the rear end surface is integrally formed to protrude. , a truncated conical ring-shaped female connecting surface 6 having a curved surface and a smaller diameter than the front end surface is formed to protrude so that it can be fitted into the connecting surface 5, and both connecting surfaces 5 and 6 are fitted. A bulging part 12 is formed on the central outer periphery of a rubber packing material C that can cover the outer periphery of the rubber packing material C in a state of contact, and flanges 13 and 14 that can be joined to the end faces of both shields A and B are formed on both sides of the packing material C. are formed respectively, and both flange parts 1
Steel rings 15 and 15 are abutted on the inner surfaces of 3 and 14, respectively, and a number of U-shaped brackets 16 are fitted into both rings 15, and each bolt 18 is fitted into a hole 17 of each bracket 16. Tsuba 1
3 and 14, are inserted and fixed to the end faces of both shields A and B, respectively.

2は一定の幅を有するリングで、両シールド
A,B間の内方中央に位置するようにして、該リ
ング2の直径方向両側の外面には屈折した両前方
ブラケツト3,3の後端部を、同一軸心となる両
ボルトナツト19,19によりそれぞれ枢着する
とともに、両前方ブラケツト3,3の前端部を前
部シールドAの内周面に2本のボルト20を介し
てそれぞれ固設し、また、両ボルトナツト19,
19の軸心に直交する方向となるリング2の直径
方向両側の外面には屈折した両後方ブラケツト
4,4の前端部を、同一軸心となる両ボルトナツ
ト21,21にそれぞれ枢着するとともに、両後
方ブラケツト4,4の後端部を後部シールドBの
内周面に2本のボルト22を介してそれぞれ固設
し構成する。
Reference numeral 2 denotes a ring having a constant width, which is positioned in the center between the shields A and B, and has bent front brackets 3, 3 on the outer surface of the ring 2 on both sides in the diametrical direction. are pivotally connected by both bolts and nuts 19, 19 having the same axis, and the front ends of both front brackets 3, 3 are respectively fixed to the inner peripheral surface of the front shield A via two bolts 20. , and both bolts and nuts 19,
On the outer surface of both diametrical sides of the ring 2 in the direction perpendicular to the axis of the ring 2, the front ends of both bent rear brackets 4, 4 are pivotally connected to both bolts and nuts 21, 21 having the same axis, respectively. The rear end portions of both rear brackets 4, 4 are fixed to the inner peripheral surface of rear shield B via two bolts 22, respectively.

したがつて、前部シールドAは両ボルトナツト
19,19を中心に回動しながら後部シールドB
に対し上下方向に屈折できることになり、また、
両ボルトナツト21,21を中心に回転しながら
後部シールドBに対し左右方向に屈折できること
になつて、従来形が10度までの回動角度であつた
のに比し、12〜13度と大きく回動できることにな
り、しかも上下左右に屈折できることになる。
Therefore, the front shield A rotates around both bolts and nuts 19, and the rear shield B
This means that it can be refracted in the vertical direction, and
While rotating around both bolt nuts 21, 21, it can be bent left and right against the rear shield B. Compared to the conventional type, which had a rotation angle of up to 10 degrees, the rotation angle can be increased to 12 to 13 degrees. This means that it will be able to move, and it will also be able to bend up, down, left and right.

そのように回動する状態で、両連接面5,6は
常に嵌接状態を保持して連結姿勢を正常に維持で
きることになり、また、パツキン材Cは変形しな
がらも両シールドA,Bの連結部を被覆すること
ができて、土砂や水が侵入するのを防止できるこ
とになる。
In such a rotating state, both connecting surfaces 5 and 6 can always maintain a fitted state and maintain a normal connecting posture, and even though the packing material C is deformed, both shields A and B can be The connecting portion can be covered to prevent dirt and water from entering.

〔発明の効果〕〔Effect of the invention〕

このように本発明は、前部シールドを後部シー
ルドに対し上下左右方向にスムーズに屈折させる
ことができることになつて、掘進性能を一段と向
上させることができることになり、しかも、屈折
角度を従来形に比し大きくとれることになり、ま
た、両連接面の接合により連結姿勢を正常に保持
させることができ、パツキン材の被着により土砂
や水が侵入するのを防止でき、掘進作業を有効に
行なうことができて好適に実施できる特長を有す
る。
In this way, the present invention enables the front shield to be smoothly bent in the vertical and horizontal directions with respect to the rear shield, further improving excavation performance. In addition, by joining both connecting surfaces, the connecting posture can be maintained normally, and the attachment of the packing material prevents earth, sand and water from entering, making digging work more effective. It has the feature that it can be carried out suitably.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の実施例である要部の断面図、
第2図は第1図の右側面図を示し、第3図は後部
シールドの断面図、第4図は前部シールドの断面
図、第5図は第4図の右側面図を示し、第6図は
第1図の一部の外側面図、第7図aはパツキン材
の側面図、第7図bはその一部の横断面図、第8
図はパツキン材の正面図、第9図はリングを示
し、第10図aはブラケツトの平面図、第10図
bはその断面図、第11図は第1図の一部の外側
面図、第12図は第11図の右側面図を示す。 1……カツター、A……前部シールド、B……
後部シールド、2……リング、3……前方ブラケ
ツト、4……後方ブラケツト、5,6……連接
面、C……パツキン材。
FIG. 1 is a sectional view of the main part of an embodiment of the present invention.
FIG. 2 shows a right side view of FIG. 1, FIG. 3 is a sectional view of the rear shield, FIG. 4 is a sectional view of the front shield, FIG. 5 is a right side view of FIG. Fig. 6 is an external side view of a part of Fig. 1, Fig. 7a is a side view of the packing material, Fig. 7b is a cross-sectional view of the part, Fig. 8
9 shows a ring, FIG. 10a is a plan view of the bracket, FIG. 10b is a sectional view thereof, and FIG. 11 is an external side view of a part of FIG. 1. FIG. 12 shows a right side view of FIG. 11. 1... cutter, A... front shield, B...
Rear shield, 2...ring, 3...front bracket, 4...rear bracket, 5, 6...connecting surface, C...packing material.

Claims (1)

【特許請求の範囲】[Claims] 1 前部シールドAは、その前端面aには複数の
孔7を形成すると共に中心部には、後方の油圧モ
ーター8で作動され前面に多数のカツター1を固
設した十字状カツター台枠10の回転軸9を嵌挿
させるものとし、更に内部にスクリユーコンベア
11を設けて孔7より流入せる土砂を搬出する様
構成し且つ後端面には小径となつて曲面を有する
截頭円錐状のリング状雄形連接面5を突出形成す
る、一方これに連なる後部シールドBの前端面に
は上記前端面より小径で曲面を有する截頭円錐状
のリング状雌形連接面6を形成して前記前部シー
ルドA後端部の連接面5と嵌装させる。そしてこ
の連接面5,6に嵌装し外周を被覆するゴム製パ
ツキン材Cの中央外周には膨出部12を形成する
とともに、該パツキン材Cの両側には鍔部13,
14を形成してその内側に鋼製リング15,15
を当接させる。一方上記パツキン材Cを介在させ
た前部シールドAの後端面と、後部シールドBと
が接触する個所の内面には幅をもたせたリング2
を介在させ、該リング2の直径方向両外側面に屈
折形成したブラケツト3,3の後端部をボルト1
9,19を以つて回動可能に枢着し且つ、該ブラ
ケツト3,3の前端部を前部シールドAの内周面
に2本のボルト20を介して軸着させ、更にリン
グ2の前記ボルト19,19の軸心の直交する方
向となるリング2の直径方向両側の外面には屈折
した両後方ブラケツト4,4の前端部をボルトナ
ツト21,21を以つて枢着し且つ又、ブラケツ
ト4,4の後端部を後部シールドBの内周面に2
本のボルト22を介して軸着してなるトンネル工
事用掘進機の前後シールド連結装置。
1 The front shield A has a plurality of holes 7 formed in its front end surface a, and a cross-shaped cutter frame 10 in the center that is operated by a rear hydraulic motor 8 and has a number of cutters 1 fixed to the front surface. A rotating shaft 9 is fitted therein, and a screw conveyor 11 is provided inside to carry out the earth and sand flowing in from the hole 7, and a truncated conical shape with a small diameter and a curved surface is provided on the rear end surface. A ring-shaped male connecting surface 5 is formed in a protruding manner, while a truncated-conical ring-shaped female connecting surface 6 having a smaller diameter and a curved surface than the front end surface is formed on the front end surface of the rear shield B that is continuous with the ring-shaped male connecting surface 5. It is fitted to the connecting surface 5 at the rear end of the front shield A. A bulging part 12 is formed on the central outer periphery of a rubber packing material C that is fitted onto the connecting surfaces 5 and 6 and covers the outer periphery, and flanges 13 are formed on both sides of the packing material C.
14 with steel rings 15, 15 inside.
bring it into contact. On the other hand, a ring 2 with a width is provided on the inner surface of the area where the rear end surface of the front shield A with the packing material C interposed therebetween and the rear shield B contact.
The rear end portions of the brackets 3, 3, which are bent on both diametrically outer surfaces of the ring 2, are connected to the bolts 1 with
9 and 19, and the front ends of the brackets 3 and 3 are pivotally attached to the inner circumferential surface of the front shield A via two bolts 20. The front ends of both bent rear brackets 4, 4 are pivotally attached to the outer surfaces of both diametrical sides of the ring 2 in the direction perpendicular to the axes of the bolts 19, 19, using bolt nuts 21, 21, and the brackets 4 are , 4 to the inner peripheral surface of the rear shield B.
This is a front and rear shield connection device for a tunnel construction machine, which is connected via a bolt 22.
JP8844487A 1987-04-10 1987-04-10 Front-rear shield connector for excavator for tunnel construction Granted JPS63255494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8844487A JPS63255494A (en) 1987-04-10 1987-04-10 Front-rear shield connector for excavator for tunnel construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8844487A JPS63255494A (en) 1987-04-10 1987-04-10 Front-rear shield connector for excavator for tunnel construction

Publications (2)

Publication Number Publication Date
JPS63255494A JPS63255494A (en) 1988-10-21
JPH0511189B2 true JPH0511189B2 (en) 1993-02-12

Family

ID=13942974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8844487A Granted JPS63255494A (en) 1987-04-10 1987-04-10 Front-rear shield connector for excavator for tunnel construction

Country Status (1)

Country Link
JP (1) JPS63255494A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0532489U (en) * 1991-10-02 1993-04-27 株式会社小松製作所 Shield excavator articulation device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756886B2 (en) * 1974-04-12 1982-12-02 Research Corp
JPS5825840A (en) * 1982-07-01 1983-02-16 Oriental Chain Kogyo Kk Production of coiled bushing for chain
JPS5916639A (en) * 1983-03-14 1984-01-27 Hitachi Ltd Metallic die for manufacturing cross fin tube type heat exchanger fin

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5576295U (en) * 1978-11-15 1980-05-26
JPS5756886U (en) * 1980-09-18 1982-04-03

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756886B2 (en) * 1974-04-12 1982-12-02 Research Corp
JPS5825840A (en) * 1982-07-01 1983-02-16 Oriental Chain Kogyo Kk Production of coiled bushing for chain
JPS5916639A (en) * 1983-03-14 1984-01-27 Hitachi Ltd Metallic die for manufacturing cross fin tube type heat exchanger fin

Also Published As

Publication number Publication date
JPS63255494A (en) 1988-10-21

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