MODULAR COUNTERWEIGHT CARRIAGE FOR CRANES, IN PARTICULAR FOR LARGE CRANES

摘要

Crane, in particular large mobile crane, having a revolving superstructure (3), having at least one jib (1) and at least one counter-jib (2) and having a counterweight (5) arranged separately from the revolving superstructure (3) and connected to the tip of the counter-jib (2). A modular counterweight system, which has the maximum superlift counterweight envisaged for the crane without a correspondingly large carriage being required, further ensures the mobility of the crane. The revolving superstructure (3) has at least one degree of freedom of movement in relation to the ground or its base, and the separately arranged counterweight is divided up into a displaceable counterweight (5, 9, 10) and a non-displaceable counterweight (13, 16), these being connected to one another and to the counter-jib (2) such that the non-displaceable counterweight (13, 16) can be activated before the displaceable counterweight (5, 9, 10).