ATE37068T1 - TORQUE-LIMITING HYDRAULIC CIRCUIT. - Google Patents

TORQUE-LIMITING HYDRAULIC CIRCUIT.

Info

Publication number
ATE37068T1
ATE37068T1 AT85103342T AT85103342T ATE37068T1 AT E37068 T1 ATE37068 T1 AT E37068T1 AT 85103342 T AT85103342 T AT 85103342T AT 85103342 T AT85103342 T AT 85103342T AT E37068 T1 ATE37068 T1 AT E37068T1
Authority
AT
Austria
Prior art keywords
connection
power element
electro
torque
controlling
Prior art date
Application number
AT85103342T
Other languages
German (de)
Inventor
Joerg E Schulze-Beckinghausen
Original Assignee
Weatherford Oil Tool
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
Priority claimed from DE19843423757 external-priority patent/DE3423757A1/en
Application filed by Weatherford Oil Tool filed Critical Weatherford Oil Tool
Application granted granted Critical
Publication of ATE37068T1 publication Critical patent/ATE37068T1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • E21B19/165—Control or monitoring arrangements therefor
    • E21B19/166—Arrangements of torque limiters or torque indicators

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Earth Drilling (AREA)

Abstract

1. Switch and control arrangement for working equipment (12) actuatable by flowing working medium, in particular for operation of screw clamps for screwing pump rods, inner- and conveying tubes in the drilling industry, in which a power element (10) with two connections (13, 14) on the downstream side is connected to the supply (11) of the working medium, one connection (13) of the power element (10) on the downstream side being connected to a tank return line (34), the other (14) being connected to a control part for controlling the opening cross-section of the tankside connection, characterised in that the connection (14) of the power element (10) leading to the control part for controlling the opening cross-section of the tank-side connection is connected in addition to a control block, connected with the tank return line (34), said block consisting. of an electro-magnetic valve (31) and a bypass line, for the electro-magnetic valve (31), closable by a hydraulic cut-off valve (32).
AT85103342T 1984-06-28 1985-03-22 TORQUE-LIMITING HYDRAULIC CIRCUIT. ATE37068T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843423757 DE3423757A1 (en) 1983-01-03 1984-06-28 SWITCHING AND CONTROL DEVICE FOR FLOWING WORKING AGENTS
EP85103342A EP0166082B1 (en) 1984-06-28 1985-03-22 Torque limiting hydraulic circuit

Publications (1)

Publication Number Publication Date
ATE37068T1 true ATE37068T1 (en) 1988-09-15

Family

ID=6239319

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85103342T ATE37068T1 (en) 1984-06-28 1985-03-22 TORQUE-LIMITING HYDRAULIC CIRCUIT.

Country Status (2)

Country Link
EP (1) EP0166082B1 (en)
AT (1) ATE37068T1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092881A (en) * 1976-10-29 1978-06-06 Christensen, Inc. Apparatus for making-up and breaking threaded pipe connections
US4280397A (en) * 1978-04-27 1981-07-28 Joy Manufacturing Company Hydraulic fluid control apparatus
US4210017A (en) * 1978-09-12 1980-07-01 Baker International Corporation Method and apparatus for generating an actual torque signal during the make-up of threaded joints
US4402052A (en) * 1981-04-10 1983-08-30 Baker International Corporation Apparatus for making threaded joints incorporating a make-up speed controller
DE3300034C2 (en) * 1983-01-03 1986-09-25 Weatherford Oil Tool Gmbh, 3012 Langenhagen Switching and control device for working devices that can be driven by a working fluid

Also Published As

Publication number Publication date
EP0166082B1 (en) 1988-09-07
EP0166082A1 (en) 1986-01-02

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee