EP0033239A3 - Crane hydraulic control system - Google Patents

Crane hydraulic control system Download PDF

Info

Publication number
EP0033239A3
EP0033239A3 EP81300320A EP81300320A EP0033239A3 EP 0033239 A3 EP0033239 A3 EP 0033239A3 EP 81300320 A EP81300320 A EP 81300320A EP 81300320 A EP81300320 A EP 81300320A EP 0033239 A3 EP0033239 A3 EP 0033239A3
Authority
EP
European Patent Office
Prior art keywords
control system
hydraulic control
pump
crane hydraulic
crane
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.)
Granted
Application number
EP81300320A
Other versions
EP0033239A2 (en
EP0033239B1 (en
Inventor
Edward H. Favelle
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.)
Aquila Steel Co Ltd
Original Assignee
Aquila Steel Co Ltd
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 Aquila Steel Co Ltd filed Critical Aquila Steel Co Ltd
Priority to AT81300320T priority Critical patent/ATE15875T1/en
Publication of EP0033239A2 publication Critical patent/EP0033239A2/en
Publication of EP0033239A3 publication Critical patent/EP0033239A3/en
Application granted granted Critical
Publication of EP0033239B1 publication Critical patent/EP0033239B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/02—Devices for facilitating retrieval of floating objects, e.g. for recovering crafts from water

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Safety Of Cranes (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Jib Cranes (AREA)

Abstract

A crane hoise drive assembly having a hydraulic motor (20) driven by a variable displacement hydraulic pump (21) and a control circuit (10) for the pump adapted to govern the pump displacement so that the lift generated by said motor is independent of line travel and is adjustably predetermined.
EP81300320A 1980-01-25 1981-01-23 Crane hydraulic control system Expired EP0033239B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81300320T ATE15875T1 (en) 1980-01-25 1981-01-23 HYDRAULIC CONTROL SYSTEM FOR CRANES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2146/80 1980-01-25
AUPE214680 1980-01-25

Publications (3)

Publication Number Publication Date
EP0033239A2 EP0033239A2 (en) 1981-08-05
EP0033239A3 true EP0033239A3 (en) 1981-12-30
EP0033239B1 EP0033239B1 (en) 1985-10-02

Family

ID=3768416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81300320A Expired EP0033239B1 (en) 1980-01-25 1981-01-23 Crane hydraulic control system

Country Status (3)

Country Link
EP (1) EP0033239B1 (en)
AT (1) ATE15875T1 (en)
DE (1) DE3172467D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005034677A1 (en) 2005-07-25 2007-02-01 Liebherr-Werk Nenzing Gmbh, Nenzing crane
DK177006B1 (en) 2010-01-19 2010-11-22 Ah Ind Projects Aps Method for controlling orientation of a load suspended in a carrier wire around the wire as well as a player arrangement
CN114314395B (en) * 2021-12-28 2024-06-07 江苏政田重工股份有限公司 Constant tension control system for hydraulic winch steel wire rope

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096577B (en) * 1957-10-23 1961-01-05 Zentrale Entwicklung Und Konst Hydraulically driven winch for lifting and lowering loads floating on the water, such as boats, buoys, seaplanes and the like. like
US3381939A (en) * 1966-01-24 1968-05-07 Brown Oil Tools Hydraulic draw works with automatic power output control
FR1531600A (en) * 1967-05-16 1968-07-05 Richier Sa Improvement in hydrostatic transmissions for lifting winches
FR2044384A5 (en) * 1969-05-19 1971-02-19 Schwermaschinenbau Noba
US3618897A (en) * 1969-06-25 1971-11-09 John J Swoboda Jr Constant tensioning system
DE2112566A1 (en) * 1971-03-16 1972-09-21 Neuenfelder Maschf Gmbh Device for hydraulic drive, especially mooring winches
FR2246484A1 (en) * 1973-10-09 1975-05-02 Brown Brothers & Co Ltd
FR2314886A1 (en) * 1975-06-16 1977-01-14 Havre Ste Nle Atel Et Chantier Moving load lifting equipment - has rope kept under constant tension and hoisting is by mechanism controlled by rope movement
DE2146586B2 (en) * 1971-09-17 1977-04-28 G.L. Rexroth Gmbh, 8770 Lohr HYDROSTATIC DRIVE PROVIDED WITH A CONSTANT TRAIN CONTROL

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54138265A (en) * 1978-04-19 1979-10-26 Hitachi Ltd Method of and apparatus for controlling operation of constant-output hydraulic hoist

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096577B (en) * 1957-10-23 1961-01-05 Zentrale Entwicklung Und Konst Hydraulically driven winch for lifting and lowering loads floating on the water, such as boats, buoys, seaplanes and the like. like
US3381939A (en) * 1966-01-24 1968-05-07 Brown Oil Tools Hydraulic draw works with automatic power output control
FR1531600A (en) * 1967-05-16 1968-07-05 Richier Sa Improvement in hydrostatic transmissions for lifting winches
FR2044384A5 (en) * 1969-05-19 1971-02-19 Schwermaschinenbau Noba
US3618897A (en) * 1969-06-25 1971-11-09 John J Swoboda Jr Constant tensioning system
DE2112566A1 (en) * 1971-03-16 1972-09-21 Neuenfelder Maschf Gmbh Device for hydraulic drive, especially mooring winches
DE2146586B2 (en) * 1971-09-17 1977-04-28 G.L. Rexroth Gmbh, 8770 Lohr HYDROSTATIC DRIVE PROVIDED WITH A CONSTANT TRAIN CONTROL
FR2246484A1 (en) * 1973-10-09 1975-05-02 Brown Brothers & Co Ltd
FR2314886A1 (en) * 1975-06-16 1977-01-14 Havre Ste Nle Atel Et Chantier Moving load lifting equipment - has rope kept under constant tension and hoisting is by mechanism controlled by rope movement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, Vol. 4, No. 3, 11 January 1980, page 49M87; & JP-A-54 138 265 *

Also Published As

Publication number Publication date
EP0033239A2 (en) 1981-08-05
EP0033239B1 (en) 1985-10-02
ATE15875T1 (en) 1985-10-15
DE3172467D1 (en) 1985-11-07

Similar Documents

Publication Publication Date Title
GB2068512B (en) Speed control of engine driving hydrostatic transmission
EP0232722A3 (en) Control system for controlling input power to hydraulic pumps of hydraulic driving system
DE3168475D1 (en) Vehicle hydraulic power steering system with means for controlling the operation of a power steering pump
AU540030B2 (en) Feedback motor speed control circuit
IT1144711B (en) HYDROSTATIC ACTUATOR PARTICULARLY FOR THE CONTROL OF A SERVO MOTOR WITH DIFFERENTIAL PISTON
HK28588A (en) A feedback system for controlling the speed of a motor
DE3864266D1 (en) HYDROSTATIC-MECHANICAL DRIVE SYSTEM.
DE3172467D1 (en) Crane hydraulic control system
GR3001607T3 (en) Vehicle, especially a maintenance vehicle, with a hydraulic operating device and a hydraulic servo steering device
ES479856A1 (en) Servomechanism rate control system with compensation for motor-tachometer resonance
DE3279342D1 (en) A system for controlling the speed of an hydraulic motor
ES8304010A1 (en) Refuse vehicle.
GB8527123D0 (en) Control for hydrostatic piston motor
EP0120436A3 (en) Method and device for controlling the driving motor of a bell ringing machine
IT8119213A0 (en) SPEED CONTROL SYSTEM PARTICULARLY FOR CONTROLLING THE SPEED OF A VEHICLE.
EP0022104A3 (en) A device for limiting the power output of a hydraulic assembly
JPS57116968A (en) Controller for hydrostatic driving system
GB2210678B (en) Control system for a hydraulic lift driven by a variable displacement pump
EP0233292A4 (en) Control system for injection molding machine driven by servo motors.
ES8200491A1 (en) Nominal value pick up for drive controls
AU4636779A (en) Control system for a reciprocating carriage drive system
DE3264876D1 (en) Apparatus for preventing overcurrent draw in a hydraulic turbine drive centrifuge
GB2079404B (en) Coupling assembly for mechanically coupling a driving motor and a hydraulic pump
FR2250389A5 (en) Variable displacement pump hydraulic drive system - has automatic hydraulic control device to adjust pump displacement as function of motor speed
GB2235792B (en) Control system for a hydraulic power lift driven by a variable displacement pump

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

17P Request for examination filed

Effective date: 19811015

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: AQUILA STEEL COMPANY LIMITED

ITF It: translation for a ep patent filed

Owner name: ING. ZINI MARANESI & C. S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: AQUILA STEEL COMPANY LIMITED

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 15875

Country of ref document: AT

Date of ref document: 19851015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3172467

Country of ref document: DE

Date of ref document: 19851107

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19860123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19860124

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19860131

Ref country code: LI

Effective date: 19860131

Ref country code: CH

Effective date: 19860131

Ref country code: BE

Effective date: 19860131

BERE Be: lapsed

Owner name: AQUILA STEEL CY LTD

Effective date: 19860131

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19860801

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19860930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19861001

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881118

EUG Se: european patent has lapsed

Ref document number: 81300320.9

Effective date: 19861028