MECHANISED TIMBER FOR ABRUPT LAYERS Russian patent published in 2014 - IPC E21D23/00 

FIELD: mining.

SUBSTANCE: mechanised timber comprises base sections made in the form of a pneumatic sliding blade with a number of pneumatic bags as an element of the thrust, linear sections with roof bar, and a shifting mechanism. And the linear section has as an element of the thrust the pneumatic rack which is a polymer film sleeve reinforced with polymer hoops, which rests on the capsule of the apparatus cabinet, and the roof bar of the linear section is covered with an elastic polymer layer. The shifting mechanism consists of two external discs, one of which belongs to goaf fence, and another - the linear sections between which the pneumatic bags are located, and two internal discs with the pneumatic bags between them. And the disc located closer to the goaf fence, is connected by the rods to the capsule of the apparatus cabinet of the linear section and the disc located closer to the linear section, is connected by the rods to the goaf fence.

EFFECT: creation of sustainable workable timber for excavating powerful and average power abrupt layers under conditions of rapid manifestation of rock pressure.

5 dwg