CRANE, IN PARTICULAR MOBILE CRANE WITH A NARROW TRACK AND ENLARGED SUPPORTING BASE

摘要

Crane, in particular mobile crane with a narrow track and enlarged supporting base. Cranes with a moving gear with rubber tyres are generally equipped with stays. Loads can generally be lifted only when the crane stands on the stays. The forces are not generally uniformed distributed among the stays in operation, creating a torsional moment in the central part and also in the tracks. The invention addresses the problem of providing a crane, in particular a mobile crane on a narrow tracked moving gear, with stays arranged in such a way that an enlarged supporting base is achieved. The present crane comprises a truck, a superstructure and a jib arranged thereon, the superstructure being joined to the truck by a revolving connection and multiple stays being provided on the crane in order to increase the supporting base. The orientation of the stays is fixed in such a way that they form an angle of 90° with each other, two stays being oriented in the longitudinal direction of the truck and two transversely thereto. This arrangement creates a direct power flow, and no avoidable moments arise.