GB1211437A - Improvements to winches for the control of lifting apparatus such as cranes, swing bridges and similar mechanisms - Google Patents

Improvements to winches for the control of lifting apparatus such as cranes, swing bridges and similar mechanisms

Info

Publication number
GB1211437A
GB1211437A GB7077/68A GB707768A GB1211437A GB 1211437 A GB1211437 A GB 1211437A GB 7077/68 A GB7077/68 A GB 7077/68A GB 707768 A GB707768 A GB 707768A GB 1211437 A GB1211437 A GB 1211437A
Authority
GB
United Kingdom
Prior art keywords
control
resistance
clutch
current
winches
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
GB7077/68A
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.)
F Potain and Cie
Original Assignee
F Potain and Cie
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 F Potain and Cie filed Critical F Potain and Cie
Publication of GB1211437A publication Critical patent/GB1211437A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/0016—Control of angular speed of one shaft without controlling the prime mover
    • H02P29/0027—Controlling a clutch between the prime mover and the load
    • 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
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • B66C13/23—Circuits for controlling the lowering of the load
    • B66C13/26—Circuits for controlling the lowering of the load by ac motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/12—Driving gear incorporating electric motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
    • B66C2700/081—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists with ac motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/01—Winches, capstans or pivots
    • B66D2700/0125—Motor operated winches
    • B66D2700/0141—Electrically actuated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Control And Safety Of Cranes (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

1,211,437. Clutch control. ETABS F. POTAIN & CIE. 13 Feb., 1968 [20 Feb., 1967], No. 7077/68. Heading F2L. [Also in Division B8] The control of an eddy current clutch 13-14 interposed between the drives from high and low power A.C. motors 16, 24, to a winch drum (see Division B8), in which the two motors drive in opposite directions, is effected by the comparison of D.C. voltages across the terminals of a resistance 31, as established between a value manually set at a potentiometer 37-38-39- 40 and the output voltage from the rotor circuit of the motor 24. The current in the said circuit is rectified at 30 to give the D.C. voltage at the resistance 31 and at a condenser 32 connected in parallel therewith. The mains supply is rectified at 36 prior to being applied to the potentiometer, which comprises a control resistance 37 and a calibration resistance 38. The comparison of the D.C. voltages will allow an impulse to be supplied to a mains powered unit 43 which includes rectifying diodes 48, 49 and thyratrons 44-45-46, from which the current to the inner armature winding 17 of the clutch is controlled.
GB7077/68A 1967-02-20 1968-02-13 Improvements to winches for the control of lifting apparatus such as cranes, swing bridges and similar mechanisms Expired GB1211437A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR48314A FR1520606A (en) 1967-02-20 1967-02-20 Improvements to winches for the control of lifting devices such as cranes, overhead cranes and the like

Publications (1)

Publication Number Publication Date
GB1211437A true GB1211437A (en) 1970-11-04

Family

ID=9694685

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7077/68A Expired GB1211437A (en) 1967-02-20 1968-02-13 Improvements to winches for the control of lifting apparatus such as cranes, swing bridges and similar mechanisms

Country Status (4)

Country Link
US (1) US3477695A (en)
DE (1) DE1556371A1 (en)
FR (1) FR1520606A (en)
GB (1) GB1211437A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009060416A1 (en) * 2007-11-09 2009-05-14 Seldèn Mast Ab Device at a line winch
WO2012007112A1 (en) * 2010-07-13 2012-01-19 Liebherr-Werk Biberach Gmbh Winch
RU2574672C2 (en) * 2010-07-13 2016-02-10 Либхерр-Компонентс Биберах Гмбх Winch

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2036969B1 (en) * 1969-04-23 1976-04-16 Pomagalski Jean
US3836121A (en) * 1972-06-23 1974-09-17 Transfer Systems Motor-driven hoist with protective braking system
US3850411A (en) * 1973-06-01 1974-11-26 F Vavilov Hoisting winch
US3819156A (en) * 1973-07-25 1974-06-25 Manitowoc Co Hoist drum control
DE2460463C2 (en) * 1974-12-20 1985-01-10 Kopat Gesellschaft für Konstruktion, Entwicklung und Patentverwertung mbH & Co. KG, 7323 Boll Winch drive, especially for construction cranes or similar hoists
FR2344492A2 (en) * 1976-03-18 1977-10-14 Potain Sa WINCH IMPROVEMENTS FOR CONTROL OF LIFTING EQUIPMENT OF THE TYPE OF CRANES, CRANES OR SIMILAR
US4132322A (en) * 1977-04-18 1979-01-02 Loesch Leo J Silo unloader winch drive
US4625946A (en) * 1984-03-19 1986-12-02 Ederer Incorporated Hoist having worm safety device
US6352136B1 (en) * 2000-06-19 2002-03-05 Kuei-Tang Shih Auxiliary safety lift device for elevator
CN1948118B (en) * 2005-10-11 2010-07-07 中国石化集团胜利石油管理局钻井工艺研究院 Single shaft external rotor electric driving reel cart for petroleum drilling machine
DE102009007916A1 (en) * 2009-02-06 2010-08-19 Franki Grundbau Gmbh & Co.Kg Ram with eddy current coupling
CN105540470B (en) * 2016-02-17 2017-11-24 宁波新宏液压有限公司 Double clutch Winch Wire Rope Ranging Devices and its application
DE102022204709A1 (en) * 2022-05-13 2023-11-16 Robert Bosch Gesellschaft mit beschränkter Haftung Braking device, electromechanical braking system and method for operating an electromechanical braking system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609181A (en) * 1948-06-01 1952-09-02 Dynamatic Corp Hoist control
US3173041A (en) * 1960-01-15 1965-03-09 Pye Ltd Control circuit for electromagnetic couplings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009060416A1 (en) * 2007-11-09 2009-05-14 Seldèn Mast Ab Device at a line winch
WO2012007112A1 (en) * 2010-07-13 2012-01-19 Liebherr-Werk Biberach Gmbh Winch
RU2574672C2 (en) * 2010-07-13 2016-02-10 Либхерр-Компонентс Биберах Гмбх Winch
US10246311B2 (en) 2010-07-13 2019-04-02 Liebherr-Components Biberach Gmbh Winch

Also Published As

Publication number Publication date
FR1520606A (en) 1968-04-12
US3477695A (en) 1969-11-11
DE1556371A1 (en) 1970-07-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee