GB1357197A - Crane control devices - Google Patents

Crane control devices

Info

Publication number
GB1357197A
GB1357197A GB3529071A GB3529071A GB1357197A GB 1357197 A GB1357197 A GB 1357197A GB 3529071 A GB3529071 A GB 3529071A GB 3529071 A GB3529071 A GB 3529071A GB 1357197 A GB1357197 A GB 1357197A
Authority
GB
United Kingdom
Prior art keywords
luffing
slewing
lever
range
load
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
GB3529071A
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 GB1357197A publication Critical patent/GB1357197A/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

1357197 Electric correspondence control SIEMENS AG 27 July 1971 [28 July 1970] 35290/71 Heading G1N A control device 6 for controlling the slewing and luffing of a crane 1, comprises desired angle setting members 9, 10 and 11, 12 for luffing and slewing respectively which members are selectively connectable through switch contacts W2, W1 to respective first inputs 14a, 13a of comparison units 14, 13 of which the second inputs 14b, 13b are connected to respective angle detecting means 16, 15 which provide signals indicative of the actual slewing and luffing angles, the differences betweenthe inputs forming signal voltages which are applied to amplifiers 18, 17 controlling through relays 25, 24, switching contactors 21 or 22 and 19 or 20 to energize luffing motor 3a and slewing motor 2a. The operating levers 9a-12a of the members are disposed on a common control board so that the range of rotation of levers 9a, 10a corresponds approximately to the slewing range of the crane jib 3c and the range of rotation of levers 11a, 12a corresponds approximately to the luffing range of the jib. Thus a load pick-up point may be set by lever 9a and load-depositing point by lever 10a for slewing, whilst the load pick-up point for luffing is set by pre-setting a first desire value for the radius of action of the crane by lever 11a, and the load-depositing point at a second radius of action by lever 12a. The speed of slewing and luffing is determined by the voltages from units 13, 14.
GB3529071A 1970-07-28 1971-07-27 Crane control devices Expired GB1357197A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702037301 DE2037301A1 (en) 1970-07-28 1970-07-28 Crane in which the luffing and slewing gear is provided with a program control device

Publications (1)

Publication Number Publication Date
GB1357197A true GB1357197A (en) 1974-06-19

Family

ID=5778079

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3529071A Expired GB1357197A (en) 1970-07-28 1971-07-27 Crane control devices

Country Status (3)

Country Link
DE (1) DE2037301A1 (en)
GB (1) GB1357197A (en)
NO (1) NO129341B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2252295A (en) * 1991-01-31 1992-08-05 James Daniel Davidson Offshore crane control system
WO2023207152A1 (en) * 2022-04-29 2023-11-02 中联重科股份有限公司 Control method and apparatus for crane boom, and controller and crane

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2252295A (en) * 1991-01-31 1992-08-05 James Daniel Davidson Offshore crane control system
GB2252295B (en) * 1991-01-31 1994-08-03 James Daniel Davidson Offshore crane control system
WO2023207152A1 (en) * 2022-04-29 2023-11-02 中联重科股份有限公司 Control method and apparatus for crane boom, and controller and crane

Also Published As

Publication number Publication date
DE2037301A1 (en) 1972-02-03
NO129341B (en) 1974-04-01

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed