The disclosure relates to a crane comprising an undercarriage, a uppercarriage mounted rotatably on the undercarriage, a boom connected to the uppercarriage, a derrick boom connected to the uppercarriage, via which the boom is braced, a guide connected to the uppercarriage, and a derrick ballast comprising at least two ballast elements that can be stacked on top of one another and a cross member, which is connected to the derrick boom via a ballast bracing and to the uppercarriage via the guide. The cross member can be connected to a stack of ballast elements via a retaining element comprising first connecting means for releasably connecting the retaining element to second connecting means of the ballast elements of the stack. The retaining element can be connected to a partial stack of ballast elements of the stack by moving the retaining element and/or the cross member relative to the uncoupled stack.
CRANE WITH DERRICK BALLAST
2025-01-09
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |