JPH0747495Y2 - Tail clearance measuring device for shield machine - Google Patents
Tail clearance measuring device for shield machineInfo
- Publication number
- JPH0747495Y2 JPH0747495Y2 JP12481690U JP12481690U JPH0747495Y2 JP H0747495 Y2 JPH0747495 Y2 JP H0747495Y2 JP 12481690 U JP12481690 U JP 12481690U JP 12481690 U JP12481690 U JP 12481690U JP H0747495 Y2 JPH0747495 Y2 JP H0747495Y2
- Authority
- JP
- Japan
- Prior art keywords
- probe
- shield
- skin plate
- segment
- shield body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 本考案はシールド掘進機において、シールド本体のテー
ル部スキンプレートとシールド本体内で組み立てられる
セグメントとの隙間を測定するテールクリアランス測定
装置に関する。TECHNICAL FIELD The present invention relates to a tail clearance measuring device for measuring a clearance between a tail skin plate of a shield body and a segment assembled in the shield body in a shield machine.
従来の技術 従来、シールド掘進機において、シールド本体のテール
部スキンプレートとシールド本体内で組み立てられるセ
グメントとの隙間の測定は、適宜作業員が鋼尺を当てて
目視で読み取ったり、また自動化されたものでは渦電流
式などのセンサーを利用して行われていた。Conventional technology Conventionally, in a shield machine, the measurement of the gap between the tail skin plate of the shield main body and the segment assembled in the shield main body was appropriately read visually by an operator by applying a steel scale, or was automated. In the thing, it was done using the sensor of the eddy current type.
考案が解決しようとする課題 しかし、人手によるものでは、連続的に効率よく測定で
きないという問題があった。また、渦電流式のセンサー
では、セグメントが鋼製に限られてコンクリート製セグ
メントでは測定が不可能であり、さらに測定範囲が０〜
15mm程度で、通常20〜40mmのテールクリアランスの測定
には無理があった。Problems to be Solved by the Invention However, there is a problem that manual measurement cannot be performed continuously and efficiently. Further, in the eddy current type sensor, since the segment is limited to steel, it is impossible to measure with the concrete segment, and the measurement range is 0 to
It was not possible to measure the tail clearance of about 15 mm, usually 20 to 40 mm.
本考案は上記問題点を解決して、どのような材質のセグ
メントであっても連続的にかつ容易に測定でき、シール
ド本体の姿勢制御のデーターとして使用できる測定値を
得ることができるシールド掘進機のテールクリアランス
測定装置を提供することを目的とする。The present invention solves the above problems and enables continuous and easy measurement of any material segment, and obtains a measured value that can be used as data for attitude control of the shield body. An object of the present invention is to provide a tail clearance measuring device.
課題を解決するための手段 本考案は上記問題点を解決するために、シールド本体の
テール部スキンプレート所定位置に開口部を形成し、こ
の開口部にシールド本体軸心に向かって出退自在な測定
子を設け、前記測定子の突出量を検出する計測手段を設
けたものである。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention forms an opening at a predetermined position of a skin plate of a tail portion of a shield body, and the opening portion is movable toward and away from the axis of the shield body. A measuring element is provided, and a measuring means for detecting the protrusion amount of the measuring element is provided.
作用 上記構成によれば、シールド本体前進停止時に測定子を
開口部から突出させて先端をセグメント外周面に当接さ
せ、検出手段により各測定子の突出量を検出する。した
がって、シールド本体のテール部スキンプレートとシー
ルド本体内で組み立てられたセグメントとのクリアラン
スを連続的にかつ容易に測定でき、しかもどのような材
質のセグメントであっても測定が可能で、シールド本体
の姿勢制御のデーターとしても使用できる測定値を容易
に得ることができる。Operation According to the above configuration, the probe is projected from the opening and the tip is brought into contact with the outer peripheral surface of the segment when the advance of the shield body is stopped, and the protrusion amount of each probe is detected by the detection means. Therefore, the clearance between the tail skin plate of the shield body and the segment assembled in the shield body can be continuously and easily measured, and the segment of any material can be measured. It is possible to easily obtain a measured value that can also be used as attitude control data.
実施例 以下本考案の第１実施例を第１図〜第４図に基づいて説
明する。Embodiment A first embodiment of the present invention will be described below with reference to FIGS.
２はスキンプレート１のテール部で周方向一定間隔毎４
箇所に貫通形成された開口部で、スキンプレート１外面
に取り付けられた固定ブロック３に油圧−ばね式ねじシ
リンダー４が開口部２に収納して配設され、その測定子
（ピストンロッド）５がスキンプレート１の内面と面一
上に設定されるとともに、シールド軸心側に向かって半
径方向に出退自在に設けられている。前記固定ブロック
３にはねじシリンダー４に油圧を供給する油圧管６が接
続され、この油圧管６はスキンプレート１外面に沿って
配管されてシールド本体７の中間部からスキンプレート
１を貫通しシールド本体７内に配設された油圧装置８に
接続されている。また、スキンプレート１には油圧管６
と固定ブロック３を覆う保護カバー９が取り付けられ
る。前記油圧装置８は、第４図に示すように、オイルタ
ンク10のオイルを所定圧力で送り出す油圧ポンプ11と、
油圧ポンプ11からの吐出側油圧管６に介装された計測手
段である流量計（オーバル流量計）12と、流量計12の下
流側で分岐された油圧管６の分岐部分下流側に介装され
た三方切換弁13と、前記切換弁13からオイルタンク10に
オイルを戻す油圧戻し管14とを備えている。2 is a tail portion of the skin plate 1 4 at regular intervals in the circumferential direction
A hydraulic-spring type screw cylinder 4 is housed in the opening 2 in a fixed block 3 attached to the outer surface of the skin plate 1 with an opening formed therethrough, and a stylus (piston rod) 5 thereof is provided. The skin plate 1 is set so as to be flush with the inner surface of the skin plate 1, and is provided so as to be capable of moving in and out in the radial direction toward the shield shaft center side. A hydraulic pipe 6 for supplying hydraulic pressure to the screw cylinder 4 is connected to the fixed block 3, and the hydraulic pipe 6 is piped along the outer surface of the skin plate 1 and penetrates the skin plate 1 from the middle portion of the shield body 7 to shield the shield plate 1. It is connected to a hydraulic device 8 arranged in the main body 7. Also, a hydraulic pipe 6 is provided on the skin plate 1.
And a protective cover 9 covering the fixed block 3 is attached. As shown in FIG. 4, the hydraulic device 8 includes a hydraulic pump 11 for sending out oil in an oil tank 10 at a predetermined pressure,
A flow meter (oval flow meter) 12 that is a measuring means installed in the discharge side hydraulic pipe 6 from the hydraulic pump 11, and a branch portion downstream of the hydraulic pipe 6 that is branched downstream of the flow meter 12 The three-way switching valve 13 and the hydraulic return pipe 14 for returning the oil from the switching valve 13 to the oil tank 10 are provided.
上記構成において、シールド本体７が前進を停止した時
に、任意の１個の切換弁13をねじシリンダー４側に切り
換えて油圧ポンプ11からねじシリンダー４に油圧を供給
し、測定子５を開口部２から突出させて先端5aをセグメ
ント15に当接させる。そして流量計12により供給したオ
イル量を計測して測定子５の突出量すなわちスキンプレ
ート１とセグメント15のクリアランスＣを測定する。測
定後、この切換弁13を元に戻すと、ねじシリンダー４に
内蔵されたばね4aにより測定子５は元の位置に後退さ
れ、ねじシリンダー４内のオイルは油圧管６および油圧
戻し管14を介してオイルタンク10に戻される。このよう
に順次切換弁13を操作して各ねじシリンダー４位置のク
リアランスＣを測定する。In the above configuration, when the shield main body 7 stops advancing, any one switching valve 13 is switched to the screw cylinder 4 side to supply hydraulic pressure from the hydraulic pump 11 to the screw cylinder 4, and the probe 5 is opened. And the tip 5a is brought into contact with the segment 15. Then, the amount of oil supplied is measured by the flow meter 12 to measure the amount of protrusion of the probe 5, that is, the clearance C between the skin plate 1 and the segment 15. After measurement, when the switching valve 13 is returned to its original position, the probe 5 is retracted to its original position by the spring 4a built in the screw cylinder 4, and the oil in the screw cylinder 4 passes through the hydraulic pipe 6 and the hydraulic return pipe 14. Returned to the oil tank 10. In this way, the switching valve 13 is sequentially operated to measure the clearance C at each screw cylinder 4 position.
なお、油圧管６の分岐部下流側にそれぞれ流量計を介装
して同時に各クリアランスＣを測定できるようにしても
よい。A flowmeter may be provided on the downstream side of the branched portion of the hydraulic pipe 6 so that each clearance C can be measured at the same time.
次に第２実施例を第５図に基づいて説明する。Next, a second embodiment will be described with reference to FIG.
これは測定子の駆動源を油圧からケーブル（プッシュブ
ルケーブル）に変えてケーブルを利用した手動式にした
ものである。This is a manual type that uses a cable by changing the drive source of the contact point from hydraulic pressure to a cable (pushbull cable).
すなわち、開口部２には、内蔵されたばねにより後退側
に付勢された測定子21が取付部材22を介して取り付けら
れ、先端が測定子21に連結されて測定子21を突出側に押
し出すケーブル23が、スキンプレート１に形成された貫
通孔24を介してシールド本体７内に導入される。そし
て、ケーブル23の基端側シールド本体７内には、押し出
し用ノブ25が取り付けられるとともに、電気式直線変位
計26に接続され、計測時に手動によりノブ25を先端側に
押し出して測定子21をセグメント15に当接させ、ケーブ
ル23の変位量を直線変位計26により計測することによ
り、測定子21の突出量すなわちスキンプレート１とセグ
メント15のクリアランスＣを測定することができる。That is, a probe 21 urged to the retreat side by a built-in spring is attached to the opening 2 via a mounting member 22, and a tip end is connected to the probe 21 to push the probe 21 to a protruding side. 23 is introduced into the shield body 7 through the through hole 24 formed in the skin plate 1. Then, the push-out knob 25 is attached to the inside of the shield body 7 on the proximal end side of the cable 23, and is connected to the electric linear displacement meter 26, and the knob 25 is manually pushed out to the tip end side at the time of measurement to move the probe 21. By contacting the segment 15 and measuring the displacement amount of the cable 23 by the linear displacement meter 26, the protrusion amount of the probe 21, that is, the clearance C between the skin plate 1 and the segment 15 can be measured.
なお、ノブ25取り付け位置に目盛板27を設けて目視によ
りケーブル25の移動量を測定してもよい。また、ノブ25
に換えて液圧式シリンダを設け、測定を自動化すること
もできる。It is also possible to provide a scale plate 27 at the position where the knob 25 is attached and visually measure the movement amount of the cable 25. Also, knob 25
Alternatively, a hydraulic cylinder may be provided to automate the measurement.
考案の効果 以上に述べたごとく本考案によれば、シールド本体前進
停止時に測定子を開口部から突出させて先端をセグメン
ト外周面に当接させ、検出手段により各測定子の突出量
を検出する。したがって、シールド本体のテール部スキ
ンプレートとシールド本体内で組み立てられたセグメン
トとのクリアランスを連続的にかつ容易に測定でき、し
かもどのような材質のセグメントであっても測定が可能
で、シールド本体の姿勢制御のデーターとしても使用で
きる測定値を容易に得ることができる。As described above, according to the present invention, when the shield body advances and stops, the probe is projected from the opening and the tip is brought into contact with the outer peripheral surface of the segment, and the detection means detects the protrusion amount of each probe. . Therefore, the clearance between the tail skin plate of the shield body and the segment assembled in the shield body can be continuously and easily measured, and the segment of any material can be measured. It is possible to easily obtain a measured value that can also be used as attitude control data.
第１図〜第４図は本考案の第１実施例を示し、第１図は
テール部の縦断面図、第２図は同横断面図、第３図はシ
ールド本体の縦断面図、第４図は測定装置の概略構成
図、第５図は第２実施例を示す構成図である。 １…スキンプレート、２…開口部、３…固定ブロック、
４…ねじシリンダー、５…測定子、６…油圧管、８…油
圧装置、11…油圧ポンプ、12…流量計、13…切換弁、15
…セグメント、21…測定子、22…取付部材、23…ケーブ
ル、25…ノブ、26…直線変位計、27…目盛り板、Ｃ…ク
リアランス。1 to 4 show a first embodiment of the present invention. FIG. 1 is a vertical sectional view of a tail portion, FIG. 2 is a horizontal sectional view of the same, and FIG. 3 is a vertical sectional view of a shield body. FIG. 4 is a schematic configuration diagram of the measuring device, and FIG. 5 is a configuration diagram showing a second embodiment. 1 ... Skin plate, 2 ... Opening part, 3 ... Fixed block,
4 ... Screw cylinder, 5 ... Measuring element, 6 ... Hydraulic pipe, 8 ... Hydraulic device, 11 ... Hydraulic pump, 12 ... Flow meter, 13 ... Switching valve, 15
… Segment, 21… Sensor, 22… Mounting member, 23… Cable, 25… Knob, 26… Linear displacement meter, 27… Scale plate, C… Clearance.
Claims (1)
定位置に開口部を形成し、この開口部にシールド本体軸
心に向かって出退自在な測定子を設け、前記測定子の突
出量を検出する計測手段を設けたことを特徴とするシー
ルド掘進機のテールクリアランス測定装置。1. A shield body has an opening formed at a predetermined position of a skin plate of a tail portion thereof, and a probe which can be retracted and retracted toward the axis of the shield body is provided in the opening to detect a protruding amount of the probe. A tail clearance measuring device for a shield machine, which is provided with a measuring means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12481690U JPH0747495Y2 (en) | 1990-11-26 | 1990-11-26 | Tail clearance measuring device for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12481690U JPH0747495Y2 (en) | 1990-11-26 | 1990-11-26 | Tail clearance measuring device for shield machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0482098U JPH0482098U (en) | 1992-07-16 |
| JPH0747495Y2 true JPH0747495Y2 (en) | 1995-11-01 |
Family
ID=31872446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12481690U Expired - Lifetime JPH0747495Y2 (en) | 1990-11-26 | 1990-11-26 | Tail clearance measuring device for shield machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0747495Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5156860B2 (en) * | 2011-12-22 | 2013-03-06 | 鹿島建設株式会社 | Shield machine |
-
1990
- 1990-11-26 JP JP12481690U patent/JPH0747495Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0482098U (en) | 1992-07-16 |
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