JPS5794603A - Method and device for detecting proceeding length of shielding machine - Google Patents

Method and device for detecting proceeding length of shielding machine

Info

Publication number
JPS5794603A
JPS5794603A JP55171155A JP17115580A JPS5794603A JP S5794603 A JPS5794603 A JP S5794603A JP 55171155 A JP55171155 A JP 55171155A JP 17115580 A JP17115580 A JP 17115580A JP S5794603 A JPS5794603 A JP S5794603A
Authority
JP
Japan
Prior art keywords
shielding
hydraulic fluid
cylinder
machine
proceeding
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
Application number
JP55171155A
Other languages
Japanese (ja)
Inventor
Norio Otsubo
Torakichi Gunbe
Sachikuni Matsuda
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.)
MEISHIYOU KK
MEISHO KK
Original Assignee
MEISHIYOU KK
MEISHO KK
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 MEISHIYOU KK, MEISHO KK filed Critical MEISHIYOU KK
Priority to JP55171155A priority Critical patent/JPS5794603A/en
Publication of JPS5794603A publication Critical patent/JPS5794603A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B13/00—Measuring arrangements characterised by the use of fluids
    • G01B13/02—Measuring arrangements characterised by the use of fluids for measuring length, width or thickness

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Measuring Arrangements Characterized By The Use Of Fluids (AREA)

Abstract

PURPOSE:To detect the proceeding length of a machine exactly and rationally, by detecting the quantity of hydraulic fluid is moved following the operation of a shielding jack by expressing in terms of the proceeding length of the shielding machine. CONSTITUTION:When hydraulic fluid is pressed into piston rod 28 of a cylinder 25 and a cylinder chamber of the opposite side through a pipe 26 and a cylinder port A from port P in order to advance a shielding machine, a piston 29 is pressed and moved by the hydraulic fluid, and the hydraulic fluid in the cylinder chamber of the piston rod side is discharged through a cylinder port B, a pipe 26a, a hydraulic motor M and a check valve 27. In this case, the rotary shaft of the hydraulic motor M is rotated by the number proportional to the quantity of oil, a pulse generator PG is rotated by said rotation, and pulses are generated by the number proportional to its rotational frequency, therefore, the movement of the piston of the shielding jack, that is to say, the proceeding length of the shielding machine is derived by counting the number of said pulses.
JP55171155A 1980-12-04 1980-12-04 Method and device for detecting proceeding length of shielding machine Pending JPS5794603A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55171155A JPS5794603A (en) 1980-12-04 1980-12-04 Method and device for detecting proceeding length of shielding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55171155A JPS5794603A (en) 1980-12-04 1980-12-04 Method and device for detecting proceeding length of shielding machine

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2305486A Division JPS61246628A (en) 1986-02-06 1986-02-06 Detector for stroke of cylinder

Publications (1)

Publication Number Publication Date
JPS5794603A true JPS5794603A (en) 1982-06-12

Family

ID=15918004

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55171155A Pending JPS5794603A (en) 1980-12-04 1980-12-04 Method and device for detecting proceeding length of shielding machine

Country Status (1)

Country Link
JP (1) JPS5794603A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61246628A (en) * 1986-02-06 1986-11-01 Meisho Kk Detector for stroke of cylinder
JPS62103894U (en) * 1985-12-17 1987-07-02

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50141829A (en) * 1974-05-01 1975-11-14
JPS5568997A (en) * 1978-11-17 1980-05-24 Toyo Kogyo Co System for controlling injection of back material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50141829A (en) * 1974-05-01 1975-11-14
JPS5568997A (en) * 1978-11-17 1980-05-24 Toyo Kogyo Co System for controlling injection of back material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62103894U (en) * 1985-12-17 1987-07-02
JPS61246628A (en) * 1986-02-06 1986-11-01 Meisho Kk Detector for stroke of cylinder

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