EP 3466864 B1 20220518 - CRANE
Title (en)
CRANE
Title (de)
KRAN
Title (fr)
GRUE
Publication
Application
Priority
DE 102017009183 A 20170930
Abstract (en)
[origin: CN109592581A] The invention relates to a crane which comprises a frame. The frame is provided with a rotatable base. A telescopic and pivotable cantilever is received on the base. The cantilever is provided with aplurality of movable pushing-out parts. The pushing-out part can move out and move in by means of a hydraulic driving device. The cantilever is provided with a stroke measuring device which measures amoving-out length and is connected with a control device. At each length, all pushing-out parts can move a part which is configured corresponding to a highest moving-out length, thereby realizing high stability and high bearing capability. Each pushing-out part is provided with a hydraulic cylinder configuration structure which can be controlled irrelevantly with other hydraulic cylinder configuration structure. Furthermore a moving-out program is stored in the control device so that all pushing-out parts can be singly moved out successively. The moving-out program comprises servo control. According to the servo control, extension of the cantilever starts from moving-out of a downmost moving-out part and successively continues upwards.
IPC 8 full level
B66C 23/70 (2006.01)
CPC (source: CN EP)
B66C 23/705 (2013.01 - CN EP); B66C 2700/0392 (2013.01 - CN)
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 3466864 A1 20190410; EP 3466864 B1 20220518; CN 109592581 A 20190409; CN 109592581 B 20210528; DE 102017009183 A1 20190404; DK 3466864 T3 20220801; PL 3466864 T3 20220905; RU 2018129812 A 20200218
DOCDB simple family (application)
EP 18020406 A 20180823; CN 201810931515 A 20180816; DE 102017009183 A 20170930; DK 18020406 T 20180823; PL 18020406 T 20180823; RU 2018129812 A 20180816