JPH02116590U - - Google Patents
Info
- Publication number
- JPH02116590U JPH02116590U JP2522189U JP2522189U JPH02116590U JP H02116590 U JPH02116590 U JP H02116590U JP 2522189 U JP2522189 U JP 2522189U JP 2522189 U JP2522189 U JP 2522189U JP H02116590 U JPH02116590 U JP H02116590U
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- valve
- shield
- pressure
- hydraulic pressure
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
第１図Ａは本考案の一実施例を示す全体の縦断
面図、第１図Ｂは第１図ＡのＩＢ−ＩＢ部分の断
面図、第１図Ｃは油圧回路図、第２図Ａは従来例
を示す第１図ＡのＩＢ−ＩＢ相当部の断面図、第
２図Ｂは従来例の油圧回路図である。
１：シールド機体、２ａ，２ｂ…２ｒ：シール
ドジヤツキ群（シールドジヤツキ）、１１Ａ，１
１Ｂ…１１Ｆ：ジヤツキグループ、１２Ａ，１２
Ｂ…１２Ｆ：分岐油圧回路、１３Ａ，１３Ｂ…１
３Ｆ：選択弁、１４Ａ，１４Ｂ…１４Ｆ：圧力調
整制御弁、１５：元弁、１６：油圧供給源。
Fig. 1A is an overall vertical sectional view showing an embodiment of the present invention, Fig. 1B is a sectional view of the IB-IB portion of Fig. 1A, Fig. 1C is a hydraulic circuit diagram, and Fig. 2A 2 is a sectional view of a portion corresponding to IB-IB in FIG. 1A showing a conventional example, and FIG. 2B is a hydraulic circuit diagram of the conventional example. 1: Shield aircraft, 2a, 2b...2r: Shield jack group (shield jack), 11A, 1
1B...11F: Jyatsuki Group, 12A, 12
B...12F: Branch hydraulic circuit, 13A, 13B...1
3F: Selection valve, 14A, 14B...14F: Pressure adjustment control valve, 15: Main valve, 16: Hydraulic pressure supply source.
Claims (1)
されたシールドジヤツキ群を周方向に区分けされ
た複数のジヤツキグループとし、該各ジヤツキグ
ループごとに選択弁および圧力調整制御弁付き分
岐油圧回路を連設して、該各分岐油圧回路を元弁
を介して油圧供給源に連設したことを特徴とする
圧力制御推進式シールド掘削機。 The shield jacks arranged at circumferential intervals in the rear part of the shield machine are divided into multiple jack groups in the circumferential direction, and each jack group has a branch hydraulic pressure control valve with a selection valve and a pressure adjustment control valve. A pressure-controlled propulsion type shield excavator characterized in that circuits are connected in series, and each branch hydraulic circuit is connected to a hydraulic pressure supply source via a main valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2522189U JPH02116590U (en) | 1989-03-07 | 1989-03-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2522189U JPH02116590U (en) | 1989-03-07 | 1989-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02116590U true JPH02116590U (en) | 1990-09-18 |
Family
ID=31245767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2522189U Pending JPH02116590U (en) | 1989-03-07 | 1989-03-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02116590U (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5085128A (en) * | 1973-11-29 | 1975-07-09 | ||
| JPS5833695A (en) * | 1981-08-25 | 1983-02-26 | 鹿島建設株式会社 | Automatic drilling method of tunnel by shield machine |
| JPS60119897A (en) * | 1983-11-29 | 1985-06-27 | 日立建機株式会社 | Oil pressure apparatus of gripper jack in tunnel drilling machine |
| JPH0328492A (en) * | 1989-01-31 | 1991-02-06 | Tobishima Corp | Method and device for controlling excavating direction for shield excavator |
-
1989
- 1989-03-07 JP JP2522189U patent/JPH02116590U/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5085128A (en) * | 1973-11-29 | 1975-07-09 | ||
| JPS5833695A (en) * | 1981-08-25 | 1983-02-26 | 鹿島建設株式会社 | Automatic drilling method of tunnel by shield machine |
| JPS60119897A (en) * | 1983-11-29 | 1985-06-27 | 日立建機株式会社 | Oil pressure apparatus of gripper jack in tunnel drilling machine |
| JPH0328492A (en) * | 1989-01-31 | 1991-02-06 | Tobishima Corp | Method and device for controlling excavating direction for shield excavator |
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