CRANE SUPER-LIFT APPARATUS AND TELESCOPIC CRANE

摘要

Disclosed is a crane super-lift apparatus for a telescopic crane. The apparatus comprises a set of super-lift support rods (150) consisting of N super-lift support rods (151, 152, 153, 154), with N being a natural number greater than or equal to 3, each super-lift support rod having a movable end and a connection end pivoted to a basic boom (141) of the telescopic crane; a first tensioning device connected between the movable end of each super-lift support rod and a lifting boom located above the telescopic boom; and a second tensioning device connected between the movable end of each super-lift support rod and a rotary platform (120) or the tail portion of the basic boom (141). Furthermore, the crane super-lift apparatus comprises a super-far load lifting mode and a super-high load lifting mode. The present invention further comprises a telescopic crane with the crane super-lift apparatus. By varying the arrangement manner of the pull cord and the pull point, the present invention is capable of not only achieving the super-far load lifting mode of the traditional crane but also achieving the super-high load lifting mode that the traditional crane does not have, while the lift performance of the telescopic crane is expanded to a considerable degree by means of adopting the super-high load lifting mode.