JPH0626631Y2 - Stroke meter of copy cutter - Google Patents

Stroke meter of copy cutter

Info

Publication number
JPH0626631Y2
JPH0626631Y2 JP1988122138U JP12213888U JPH0626631Y2 JP H0626631 Y2 JPH0626631 Y2 JP H0626631Y2 JP 1988122138 U JP1988122138 U JP 1988122138U JP 12213888 U JP12213888 U JP 12213888U JP H0626631 Y2 JPH0626631 Y2 JP H0626631Y2
Authority
JP
Japan
Prior art keywords
stroke
copy cutter
cutter
push
copy
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
JP1988122138U
Other languages
Japanese (ja)
Other versions
JPH0247290U (en
Inventor
隆 甲斐
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.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP1988122138U priority Critical patent/JPH0626631Y2/en
Publication of JPH0247290U publication Critical patent/JPH0247290U/ja
Application granted granted Critical
Publication of JPH0626631Y2 publication Critical patent/JPH0626631Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)

Description

【考案の詳細な説明】 (産業上の利用分野) この考案はシールドのカッタヘッド外周部に設けられた
コピーカッタのストローク検知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 stroke detecting device for a copy cutter, which is provided on an outer peripheral portion of a cutter head of a shield.

(従来の技術) シールドによりトンネルを掘削する場合の方向制御はシ
ールドジャッキの片押し操作,及びコピーカッタによる
オーバーカット量,位置をコントロールし乍ら掘進する
ためコピーカッタのオーバーカット量,即ちコピーカッ
タのシールド外周よりの実際の突出し量の検知は方向変
換操作の重要な要素となる。
(Prior Art) Direction control when excavating a tunnel with a shield is one-sided pushing operation of the shield jack, and the amount of overcut by the copy cutter, and the overcut amount of the copy cutter for controlling the position, that is, the copy cutter. The detection of the actual amount of protrusion from the outer circumference of the shield is an important factor in the direction changing operation.

もし,突出し量が不足であった場合は計画通りの旋回半
径で曲掘進することが不可能となり,また突出し量が多
過ぎた場合には土砂の取り込みが過大となり地盤の崩
落,裏込め材の増加等安全性,経済性に悪影響を及ぼ
す。従ってこの不具合を解消するため従来は,コピーカ
ッタをストロークさせる油圧ジャッキへの送油量をオー
バル流量計等によって間接的に測定しコピーカッタの突
出し量を検出するようにしている。
If the amount of overhang is insufficient, it will be impossible to make a curved excavation with the turning radius as planned, and if the amount of overhang is too large, the uptake of earth and sand will be excessive and the ground will collapse and the backfill material Such as increase adversely affect safety and economy. Therefore, in order to solve this problem, conventionally, the amount of oil sent to the hydraulic jack that strokes the copy cutter is indirectly measured by an oval flow meter or the like to detect the protrusion amount of the copy cutter.

(考案が解決しようとする課題) しかし上記従来の方法では,オーバル流量計等,流量計
の精度は一般的に所要の精度より精度が粗く実作業に際
して信頼性が欠ける不具合がある。特に急曲線施工時に
は,余掘量の正確な把握が不可欠である。
(Problems to be solved by the invention) However, in the above-mentioned conventional method, the accuracy of the flowmeter such as an oval flowmeter is generally lower than the required accuracy and there is a problem that reliability is lacked in actual work. Especially when constructing a sharp curve, it is essential to accurately grasp the amount of overburden.

この考案は上述の不具合を改善する目的でなされたもの
で,カッタヘッド外周部に設けたコピーカッタ支持体に
プッシュプルワイヤの片端を結合し,シールド本体内に
設けたゲージと直結させることによりコピーカッタのス
トロークを直接的にゲージに表示するようにして精度の
高いコピーカッタのストローク計を提供しようとするも
のである。
This invention was made in order to improve the above-mentioned inconvenience. Copying is performed by connecting one end of a push-pull wire to a copy cutter supporter provided on the outer periphery of the cutter head and directly connecting it to a gauge provided in the shield body. It is intended to provide a highly accurate stroke meter of a copy cutter by displaying the stroke of the cutter directly on the gauge.

(課題を解決するための手段及び作用) この考案は上記目的を達成するために,シールドのカッ
タヘッド外周部に設けたコピーカッタを支持する支持体
をにプッシュプルワイヤの一端を結合し,コピーカッタ
をコピーカッタ支持体を介して外周又は内周方向に摺動
させるように設置したコピーカッタジャッキに溶接固定
した止水装置付きブラケット内を通し,更にセンタシャ
フト及びロータリジョイントの中を通過させて,シール
ド本体内のコピーカッタストローク表示部において目視
できるようにすることによって,コピーカッタの動きを
直接目視,確認しつつシールドの方向制御を安全,確実
に実施可能なコピーカッタのストローク計を提供するも
のである。
(Means and Actions for Solving the Problems) In order to achieve the above-mentioned object, the present invention connects one end of a push-pull wire to a support for supporting a copy cutter, which is provided on the outer peripheral portion of a cutter head of a shield, and Pass the cutter through a bracket with a waterproof device welded and fixed to a copy cutter jack installed so that it slides in the outer or inner circumferential direction through a copy cutter support, and then pass through the center shaft and rotary joint. Providing a stroke meter for a copy cutter that enables safe and reliable shield direction control while directly checking the movement of the copy cutter by making it visible on the copy cutter stroke display section inside the shield body It is a thing.

(実施例) つぎにこの考案の実施例を第1図(a),(b)及び第2図を
参照して説明する。
(Embodiment) Next, an embodiment of the present invention will be described with reference to FIGS. 1 (a), (b) and FIG.

第2図に示すようにコピーカッタ2はカッタヘッド1の
外周部に設けられたコピーカッタ支持体3に支持されて
コピーカッタジャッキ4により,ガイド5に沿って図に
おいて上下方向に摺動ストロークするように構成されて
いる。支持体3にはブラケット6が溶接されており,こ
のブラケット6にプッシュプルワイヤ7の一方のワイヤ
端がボルト,ナットにより結合されている。止水用ブラ
ケット8は円筒状の筐体でありコピーカッタジャッキ4
に溶接固定され,プッシュプルワイヤ7は止水用ブラケ
ット8を貫通してセンタシャフト9に導かれる。止水用
ブラケット8の上部は第1図(b)に示すようにOリング1
0を設けたプラグ11によりワイヤと貫通孔をシール止水
し,下部の密閉フランジ12にはOリング13を設けて止水
用ブラケット8を気密に密閉するようにし,中央部を貫
通させたプッシュプルワイヤ7の貫通部は水中硬化型接
着充填剤で固定,止水する。
As shown in FIG. 2, the copy cutter 2 is supported by a copy cutter supporting member 3 provided on the outer peripheral portion of the cutter head 1 and slides vertically along a guide 5 by a copy cutter jack 4 in the drawing. Is configured. A bracket 6 is welded to the support body 3, and one wire end of a push-pull wire 7 is joined to the bracket 6 by a bolt and a nut. The water-stop bracket 8 is a cylindrical housing, and the copy cutter jack 4
The push-pull wire 7 is fixed to the center shaft 9 by passing through the water blocking bracket 8. As shown in FIG. 1 (b), the upper part of the water blocking bracket 8 is an O-ring 1
The plug 11 provided with 0 seals the wire and the through-hole to prevent water from leaking, and the lower sealing flange 12 is provided with an O-ring 13 to hermetically seal the water-stopping bracket 8 and push through the central portion. The penetrating portion of the pull wire 7 is fixed with an underwater curing type adhesive filler to stop water.

更にアウタケーシングにて保護されているプッシュプル
ワイヤ7は,カッタヘッド1と共回りするセンタシャフ
ト9およびロータリジョイント14内を貫通してコピーカ
ッタストローク表示部15に導かれ,コピーカッタの移動
量を表示ブラケット15の目盛板上に表示する。またプッ
シュプルワイヤ7のセンタシャフト9への入口部には水
中硬化型接着充填剤を充填して止水する。
Further, the push-pull wire 7 protected by the outer casing penetrates the center shaft 9 and the rotary joint 14 which rotate together with the cutter head 1 and is guided to the copy cutter stroke display portion 15 to check the movement amount of the copy cutter. It is displayed on the scale plate of the display bracket 15. In addition, the entrance portion of the push-pull wire 7 to the center shaft 9 is filled with an underwater curing type adhesive filler to stop water.

上部実施例のようにコピーカッタとストローク表示部と
をプッシュプルワイヤで直結することにより正確なコピ
ーカッタのストローク量の把握が可能となり,安全且
つ,経済的にトンネル掘削を行うことができる。
By directly connecting the copy cutter and the stroke display unit with a push-pull wire as in the above embodiment, it is possible to accurately grasp the stroke amount of the copy cutter, and it is possible to excavate the tunnel safely and economically.

(考案の効果) この考案は以上詳述したように,シールドのカッタヘッ
ドに設けられたコピーカッタのストローク量を正確に検
知する手段として,コピーカッタとストローク表示部を
プッシュプルワイヤで直結するようにしたことで構造が
極めて簡易化され,またカッタヘッド部の泥水,泥土等
のシールド内への流入も簡単な構造で防止できることと
なり,さらに従来油圧流量計等によって間接的に測定し
ていたために生じた誤作を皆無に等しくすることによっ
て,曲線トンネル掘削時の精度の高き曲線施工,オーバ
カットによる工事上の事故発生を確実に防止するコピー
カッタのストローク計を提供することができる。
(Effect of the Invention) As described in detail above, the present invention uses a push-pull wire to directly connect the copy cutter and the stroke display unit as means for accurately detecting the stroke amount of the copy cutter provided on the cutter head of the shield. By adopting this method, the structure is extremely simplified, and the inflow of muddy water and mud from the cutter head into the shield can be prevented with a simple structure. In addition, since it was indirectly measured by a conventional hydraulic flow meter, etc. It is possible to provide a stroke meter of a copy cutter that can prevent accidents in construction due to over-cutting with high accuracy when performing curved tunnel excavation by making all the mistakes that have occurred equal to none.

【図面の簡単な説明】[Brief description of drawings]

第1図(a)はこの考案の一実施例の要部の側面図,第1
図(b)はP部詳細図,第2図はこの考案に係るシールド
の全体の側面図,第3図は従来方式の概要図である。 1…カッタヘッド,2…コピーカッタ, 3…支持体, 4…コピーカッタジャッキ, 5…ガイド,6…ブラケット, 7…プッシュプルワイヤ, 8…止水用ブラケット,9…センタシャフト, 10…Oリング,11…プラグ, 12…フランジ,13…Oリング, 14…ロータリジョイント, 15…ストローク表示部。
FIG. 1 (a) is a side view of an essential part of an embodiment of the present invention,
FIG. 2 (b) is a detailed view of part P, FIG. 2 is a side view of the entire shield according to the present invention, and FIG. 3 is a schematic view of a conventional system. 1 ... Cutter head, 2 ... Copy cutter, 3 ... Support, 4 ... Copy cutter jack, 5 ... Guide, 6 ... Bracket, 7 ... Push-pull wire, 8 ... Water stop bracket, 9 ... Center shaft, 10 ... O Ring, 11 ... Plug, 12 ... Flange, 13 ... O-ring, 14 ... Rotary joint, 15 ... Stroke indicator.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】シールドのカッタヘッド外周部に設けられ
たコピーカッタのストローク検知装置において,コピー
カッタ支持体にプッシュプルワイヤの一端を結合し,他
端をストローク表示部に直結してコピーカッタのストロ
ークを表示部の目盛板上に表示するようにしたことを特
徴とする,コピーカッタのストローク計。
1. A stroke detecting device for a copy cutter provided on an outer peripheral portion of a cutter head of a shield, wherein one end of a push-pull wire is connected to a copy cutter support and the other end is directly connected to a stroke display portion. A stroke meter for a copy cutter, characterized in that the stroke is displayed on the scale plate of the display unit.
【請求項2】上記コピーカッタのストローク計のプッシ
ュプルワイヤのシールド機内への導入部に,プッシュプ
ルワイヤの貫通部をOリングで止水,摺動可能とした止
水用密閉ブラケットを設けたことを特徴とする,コピー
カッタのストローク計。
2. A sealing bracket for stopping water, which allows the push-pull wire to penetrate through a push-pull wire with an O-ring at the portion where the push-pull wire of the stroke gauge of the copy cutter is introduced into the shield machine. This is a stroke meter for copy cutters.
JP1988122138U 1988-09-20 1988-09-20 Stroke meter of copy cutter Expired - Lifetime JPH0626631Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988122138U JPH0626631Y2 (en) 1988-09-20 1988-09-20 Stroke meter of copy cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988122138U JPH0626631Y2 (en) 1988-09-20 1988-09-20 Stroke meter of copy cutter

Publications (2)

Publication Number Publication Date
JPH0247290U JPH0247290U (en) 1990-03-30
JPH0626631Y2 true JPH0626631Y2 (en) 1994-07-20

Family

ID=31369784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988122138U Expired - Lifetime JPH0626631Y2 (en) 1988-09-20 1988-09-20 Stroke meter of copy cutter

Country Status (1)

Country Link
JP (1) JPH0626631Y2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62200797U (en) * 1986-06-11 1987-12-21

Also Published As

Publication number Publication date
JPH0247290U (en) 1990-03-30

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