SELF-PROPELLED MACHINE FOR OPERATIONS IN MINES Russian patent published in 2007 - IPC E21F13/00 E21F17/00 

FIELD: mining industry, possible use for mechanization of operations in underground mines, in particular for evening out underground routes and crushing baked rock.

SUBSTANCE: self-propelled machine for operations in mines contains carrying frame with front and back engines, frame-mounted rotary boom with drum-type working organ and working organ of molded type with mechanisms for controlling its position height-wise and its rotation in horizontal plane. Carrying frame is made in form of two parts, interconnected by vertical joint, positioned between front and back engines. Rotary boom is mounted on front part of bearing frame in zone of front engines and is additionally equipped with mechanism for rotation in horizontal plane and with a handle held on the end of boom. Working organ of molded type is mounted on frame in front of front engines and is equipped with mechanism for reciprocal movement in transverse plane. Drum type working organ is mounted in front of molded type working organ, made in form of toothed milling cutter, consisting of immobile central support and two side drums in contact with it and mounted on a shaft with possible rotation, each one of which drums is provided with spiral coiling in central zone as well as with supports for teeth, located on surface of side drums along bifilar helix with varying step, and both spiral coiling and bifilar helixes of supports are made on each side drum directed oppositely, and there is a also a barrel mounted on each support for mounting a tooth, and each tooth of milling cutter is made conical, turned towards the front along direction of rotation of side drums of milling cutter and mounted in the barrel with possible rotation around its axis, while axes of barrels are turned in fan-like fashion relatively to spiral coiling in such a way that axes of barrels of internal zone of side drums are directed in opposite direction from central support of milling cutter, while some supports of teeth of peripheral zone of side drums of milling cutter are located on their end surface, and rotation speed of teeth is selected to exceed rotation speed of side drums of milling cutter.

EFFECT: increased universality of machine and reliability of technological process, improved quality of processing of roads in mines and removal of baked rock, increased maneuverability of machine and its working organs under limited conditions of mine, improved strength characteristics of machine structure.

4 cl, 5 dwg