Mobile crane and method for bending a main boom extension relative to a main boom of a mobile crane

摘要

The invention relates to a mobile crane with a rocker mounted thereon and via a luffing cylinder (7) erectile main boom (2) and with a releasably on a main boom head (2a) of the main boom (2) via upper and lower bolts (4c) connected to main boom extension (1). in that the main boom extension (1) can be bent starting from a basic position after a release of the upper or lower bolts (4c) by means of an angular drive (6j) about a rocking axis (w) relative to the main boom (1); 1c) of the main boom extension (1), a maximum angle of deflection (b) is limited by an adjustable Abwinkellasche (5) and the Abwinkellasche (5) on the foot (1c) of the main boom extension (1) and the main boom head (2a) engages. To a mobile crane, with which the bending of the main boom extension is simplified, it is proposed that the Abwinkelantrieb (6j) is part of a Abwinkellasche (5) in the form of a combination Abwinkellasche (6). The invention also relates to a method for bending this main boom extension.