LOADING SHOVEL-DRAGLINE Russian patent published in 2011 - IPC E02F3/48 

FIELD: construction.

SUBSTANCE: loading shovel-dragline comprises a support base, a rotary platform, a boom with a bucket, suspended to it with the help of lifting ropes with a yoke, passing through deviating blocks installed on the boom, and an opening rear wall of the bucket is equipped with a locking mechanism in the form of an unloading chain, and a bar with a lever. The lower belt of the boom in zone of deviating blocks arrangement is made with a fracture in the internal space of the boom. And the locking mechanism of the bucket rear wall opening is equipped with a traction rod with a stop, which with one end is fixed to a stop mechanism lever, and with the other - via an unloading circuit - to a yoke of lifting ropes. The angle of the lower boom belt fracture α in the vertical plane lies within the range of 120°<α<180°.

EFFECT: higher efficiency of dragline operation when loading into bodies of vehicles, into a loading elevator or crusher hopper, improved design of bucket locking mechanism.

5 dwg