FR2237504A5 - Control system for drill column drive - uses two hydraulic motors and pumps with common valve - Google Patents

Control system for drill column drive - uses two hydraulic motors and pumps with common valve

Info

Publication number
FR2237504A5
FR2237504A5 FR7324128A FR7324128A FR2237504A5 FR 2237504 A5 FR2237504 A5 FR 2237504A5 FR 7324128 A FR7324128 A FR 7324128A FR 7324128 A FR7324128 A FR 7324128A FR 2237504 A5 FR2237504 A5 FR 2237504A5
Authority
FR
France
Prior art keywords
pump
pumps
drill column
control system
hydraulic motors
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
Application number
FR7324128A
Other languages
French (fr)
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Priority to FR7324128A priority Critical patent/FR2237504A5/en
Application granted granted Critical
Publication of FR2237504A5 publication Critical patent/FR2237504A5/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/44—Control of exclusively fluid gearing hydrostatic with more than one pump or motor in operation
    • F16H61/452—Selectively controlling multiple pumps or motors, e.g. switching between series or parallel

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

The hydraulic motor (6) drives the lifting device for the drill column (3) and is supplied from the main pump (12) through the pipes (18) and (11) and through the pipe (16), the control valve (14) and the pipe (10), the direction of flow determining the direction of motor rotation. A second pump (13) also supplies oil to the circuit through the pipes (17) and (19). The speed and direction of the pump (12) is controlled by the device (20). The control valve (14) has three operating positions. For slow speed the pump (13) works by itself, or for normal operation the pump (12) works by itself and for maximum speed both pumps operate together. The speed of the pump (13) is controlled by the sensing device (25).
FR7324128A 1973-06-29 1973-06-29 Control system for drill column drive - uses two hydraulic motors and pumps with common valve Expired FR2237504A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7324128A FR2237504A5 (en) 1973-06-29 1973-06-29 Control system for drill column drive - uses two hydraulic motors and pumps with common valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7324128A FR2237504A5 (en) 1973-06-29 1973-06-29 Control system for drill column drive - uses two hydraulic motors and pumps with common valve

Publications (1)

Publication Number Publication Date
FR2237504A5 true FR2237504A5 (en) 1975-02-07

Family

ID=9121867

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7324128A Expired FR2237504A5 (en) 1973-06-29 1973-06-29 Control system for drill column drive - uses two hydraulic motors and pumps with common valve

Country Status (1)

Country Link
FR (1) FR2237504A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102815633A (en) * 2012-09-03 2012-12-12 上海中联重科桩工机械有限公司 Control device for hydraulic winch and engineering machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102815633A (en) * 2012-09-03 2012-12-12 上海中联重科桩工机械有限公司 Control device for hydraulic winch and engineering machine
CN102815633B (en) * 2012-09-03 2015-04-22 上海中联重科桩工机械有限公司 Control device for hydraulic winch and engineering machine

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Legal Events

Date Code Title Description
ST Notification of lapse