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 mechanismsInfo
- 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
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)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Control And Safety Of Cranes (AREA)
- Control Of Ac Motors In General (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (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.
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)
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)
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)
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 |
-
1967
- 1967-02-20 FR FR48314A patent/FR1520606A/en not_active Expired
-
1968
- 1968-02-12 US US704602A patent/US3477695A/en not_active Expired - Lifetime
- 1968-02-13 GB GB7077/68A patent/GB1211437A/en not_active Expired
- 1968-02-16 DE DE19681556371 patent/DE1556371A1/en active Pending
Cited By (4)
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 |