GB1391245A - Control arrangement for maintaining a required relationship between two parameters - Google Patents

Control arrangement for maintaining a required relationship between two parameters

Info

Publication number
GB1391245A
GB1391245A GB3124073A GB3124073A GB1391245A GB 1391245 A GB1391245 A GB 1391245A GB 3124073 A GB3124073 A GB 3124073A GB 3124073 A GB3124073 A GB 3124073A GB 1391245 A GB1391245 A GB 1391245A
Authority
GB
United Kingdom
Prior art keywords
rope
sensors
stores
jib
values
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
GB3124073A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1391245A publication Critical patent/GB1391245A/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
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • B66C13/30—Circuits for braking, traversing, or slewing 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
    • B66C2700/082—Control of the secondary movements, e.g. travelling, slewing, luffing of the jib, changing of the range

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

1391245 Automatic electric control SIEMENS AG 29 June 1973 [29 June 1972] 31240/73 Heading G3N A control arrangement for a crane for maintaining a constant hook 4 height comprises two sensors 13, 12 respectively sensing angular travel of the crane jib 1 and length of rope 2 paid out by hoist driving motor 5, two stores 16, 17 storing respectively actual values of pay-out of the rope and of the movement of the jib; switching means 15 operable to connect the two sensors to the stores or to disconnect the sensors from the stores to maintain predetermined values therein; and a controller 14 which combines the actual and stored values of the two sensed parameters and acts in response to a non-zero input to release the brake of the hoist unit whereby for an increase in angle of the jib the rope is paid out to maintain the desired hook height as determined by the difference between the stored and actual values. Amplifier 18 matches the angle-indicative output signals of sensor 13 and store 17 to length-indicative signals as provided by sensor 12 and store 16.
GB3124073A 1972-06-29 1973-06-29 Control arrangement for maintaining a required relationship between two parameters Expired GB1391245A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722231997 DE2231997C3 (en) 1972-06-29 1972-06-29 Device for maintaining a relationship between two linked crane movements

Publications (1)

Publication Number Publication Date
GB1391245A true GB1391245A (en) 1975-04-16

Family

ID=5849224

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3124073A Expired GB1391245A (en) 1972-06-29 1973-06-29 Control arrangement for maintaining a required relationship between two parameters

Country Status (9)

Country Link
AR (1) AR199402A1 (en)
AT (1) AT323370B (en)
BE (1) BE801509A (en)
CH (1) CH559699A5 (en)
DE (1) DE2231997C3 (en)
ES (1) ES416428A1 (en)
FR (1) FR2190712B1 (en)
GB (1) GB1391245A (en)
SE (1) SE381024B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992018416A1 (en) * 1991-04-11 1992-10-29 Hytoenen Kimmo A crane control method
US5529193A (en) * 1991-04-11 1996-06-25 Hytoenen; Kimmo Crane control method

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2621017A1 (en) * 1976-05-12 1977-12-01 Hans Tax Level luffing crane control - has hoist rope speed varied dependent on derricking rope speed and jib angle
JP2003155192A (en) * 2001-11-16 2003-05-27 Mitsubishi Heavy Ind Ltd Method for operating crane, control system, and crane provided with the same
DE102017001238A1 (en) 2017-02-09 2018-08-09 Liebherr-Components Biberach Gmbh Hoist and method for starting the hoist of such a hoist
CN106915675A (en) * 2017-03-10 2017-07-04 河南省特种设备安全检测研究院新乡分院 Elevator safety clamp brake dynamic synchronization tester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992018416A1 (en) * 1991-04-11 1992-10-29 Hytoenen Kimmo A crane control method
US5529193A (en) * 1991-04-11 1996-06-25 Hytoenen; Kimmo Crane control method

Also Published As

Publication number Publication date
DE2231997C3 (en) 1980-12-18
AT323370B (en) 1975-07-10
BE801509A (en) 1973-10-15
FR2190712B1 (en) 1977-02-18
DE2231997A1 (en) 1974-01-10
CH559699A5 (en) 1975-03-14
DE2231997B2 (en) 1980-04-30
SE381024B (en) 1975-11-24
FR2190712A1 (en) 1974-02-01
ES416428A1 (en) 1976-05-01
AR199402A1 (en) 1974-08-30

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees