MECHANIZED PNEUMATIC SUPPORT Russian patent published in 2005 - IPC

FIELD: mining industry.

SUBSTANCE: support has two rows of pneumatic tank sections, in each of which even-numbered tanks are connected to dump base beam, and odd-numbered - to face base beam. beams are connected to holding device and displacement gear, made of two longitudinal guiding beams, connected by bars between each other through shoes with face and dump base beams with possible displacement along the latter via closed chain with drive. Base beams of the same name are interconnected via tractions jointly fixed thereto. Longitudinal guides of a beam are placed above inner face and dump base beams and are additionally interconnected via coupling screw and nuts, made at same end with right-hand thread, and at the other end - with left-hand thread. Coupling screw is connected to rectangular bars via additional beam rigidly connected to it. Shoes are made with bearings, in which ends of rectangular bars are placed. All face and dump beams by their upper ends are connected to holding device through carriages, on one of which a drive is fixed, with sprocket of closed chain, connected to one end of console traction, other end of which is jointly fixed at upper end of additional beam.

EFFECT: higher efficiency.

9 dwg