POWERED SUPPORT FOR SLOPING BEDS Russian patent published in 2014 - IPC E21D23/00 

FIELD: mining.

SUBSTANCE: invention proposes a powered support that includes the sections, each of which includes a cap piece, air bags, a shifting element, a capsule of an apparatus compartment, a shoe, and a downhole and goaf enclosure. As a shifting element, two manipulators are used, which are located on both sides of the apparatus compartment and which are strutted with their grips against bed soil. In the shoe centre there is a retractable cylinder with a semispherical support on the end and an air bag inside it, which give a possibility of performing jumping movements with transfer of the section under a newly exposed roof after the face advance. Besides, between the goaf enclosure and a capsule of the apparatus compartment there are air bags that serve for shock absorption of the rocks fallen onto the support.

EFFECT: increasing serviceability of a support at oblique incidence owing to simplifying the structure, improving stability and reducing energy consumption at shifting of the support.

2 cl, 2 dwg