GB1335373A - Tower cranes - Google Patents

Tower cranes

Info

Publication number
GB1335373A
GB1335373A GB5232770A GB5232770A GB1335373A GB 1335373 A GB1335373 A GB 1335373A GB 5232770 A GB5232770 A GB 5232770A GB 5232770 A GB5232770 A GB 5232770A GB 1335373 A GB1335373 A GB 1335373A
Authority
GB
United Kingdom
Prior art keywords
characteristic
motor
brake
excitation
notching
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
GB5232770A
Other languages
English (en)
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.)
Richier SA
Original Assignee
Richier SA
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 Richier SA filed Critical Richier SA
Publication of GB1335373A publication Critical patent/GB1335373A/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
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/84—Slewing gear
    • 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)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Control And Safety Of Cranes (AREA)
  • Stopping Of Electric Motors (AREA)
GB5232770A 1969-11-03 1970-11-03 Tower cranes Expired GB1335373A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6937787A FR2067426A5 (enrdf_load_stackoverflow) 1969-11-03 1969-11-03

Publications (1)

Publication Number Publication Date
GB1335373A true GB1335373A (en) 1973-10-24

Family

ID=9042529

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5232770A Expired GB1335373A (en) 1969-11-03 1970-11-03 Tower cranes

Country Status (2)

Country Link
FR (1) FR2067426A5 (enrdf_load_stackoverflow)
GB (1) GB1335373A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112811330A (zh) * 2019-11-15 2021-05-18 湖南沃森电气科技有限公司 一种塔式起重机回转机构控制方法及系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520133A1 (fr) * 1982-01-19 1983-07-22 Potain Sa Equipement pour la reduction des effets dynamiques dans la commande en rotation d'un element horizontal de grande inertie

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112811330A (zh) * 2019-11-15 2021-05-18 湖南沃森电气科技有限公司 一种塔式起重机回转机构控制方法及系统
CN112811330B (zh) * 2019-11-15 2023-06-23 湖南沃森电气科技有限公司 一种塔式起重机回转机构控制方法及系统

Also Published As

Publication number Publication date
FR2067426A5 (enrdf_load_stackoverflow) 1971-08-20

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Legal Events

Date Code Title Description
PS Patent sealed