EP 4053065 B1 20230628 - DEVICE AND METHOD FOR CONTROLLING A CRANE ROTATIONAL GEAR AND CRANE
Title (en)
DEVICE AND METHOD FOR CONTROLLING A CRANE ROTATIONAL GEAR AND CRANE
Title (de)
VORRICHTUNG UND VERFAHREN ZUR STEUERUNG EINES KRANDREHWERKS SOWIE KRAN
Title (fr)
DISPOSITIF ET PROCÉDÉ DE COMMANDE D'UN MÉCANISME ROTATIF DE GRUE, AINSI QUE GRUE
Publication
Application
Priority
DE 102021103488 A 20210215
Abstract (en)
[origin: US2022340396A1] The present disclosure relates to an apparatus and to a method for controlling a crane slewing gear. The apparatus comprises a hydraulic motor for driving the slewing gear and for braking the slewing gear from a rotational movement. The slewing gear is kept stationary via a holding brake. A hydraulic brake circuit for controlling the holding brake, a load sensing device for measuring a load instantaneously taken up by the crane, and an orientation sensing device for measuring an instantaneous orientation of the crane and/or of at least one crane component are furthermore provided. In accordance with the disclosure, a hydraulic limitation circuit is provided by means of which a hydraulic pressure applied to the motor can be limited to a specific limit value. A control unit is furthermore provided that determines a maximum permitted torque and/or a parameter derived therefrom for a current slewing gear movement.
IPC 8 full level
B66C 13/30 (2006.01); B66C 23/86 (2006.01); B66C 23/94 (2006.01)
CPC (source: EP US)
B66C 13/30 (2013.01 - US); B66C 23/84 (2013.01 - US); B66C 23/86 (2013.01 - EP); B66C 23/94 (2013.01 - EP); B66C 2700/082 (2013.01 - US); B66C 2700/084 (2013.01 - US)
Citation (opposition)
Opponent : Manitowoc Crane Group Germany GmbH
- DE 102011122225 A1 20130620 - TEREX CRANES GERMANY GMBH [DE]
- DE 69111181 T2 19951130 - KOBE STEEL LTD [JP]
- DE 69025471 T2 19960822 - KOBE STEEL LTD [JP]
- "Das grosse Buch der Fahrzeugkrane", 1 January 2001, KM VERLAGS GMBH, ISBN: 978-3-934518-00-1, article BECKER RUDOLF: "3.11. Berechnungsgrundsätze/Qualitätssicherung", pages: 60 - 61, XP093180270
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 4053065 A1 20220907; EP 4053065 B1 20230628; DE 102021103488 A1 20220818; US 11866304 B2 20240109; US 2022340396 A1 20221027
DOCDB simple family (application)
EP 22155581 A 20220208; DE 102021103488 A 20210215; US 202217651007 A 20220214