SELF-MOVING BOTTOM-HOLE PICKUP MECHANISM Russian patent published in 2009 - IPC E21F13/08 

FIELD: mining.

SUBSTANCE: it is intended for simultaneous work with the loading machine, boring plant or with timber-mounting mechanisms having the possibility of being moved along the rigid trough line of drag conveyor by means of chainless supply mechanism when performing mine openings by drill and fire method. Pickup mechanism includes drag conveyor with a rigid line, a wedge nose piece which is mounted on the front part of drag conveyor and which serves for penetrating into the mined rock dump and for protecting the transporting member of conveyor against straight blow when breaking up the work face by explosives, two enclosing shields, support plate located in the front part of drag conveyor, power spacer-feed mechanism and the end spacer mechanism. Support plate is made with the possibility of perpendicular movement and attachment thereof relative to longitudinal axis of drag conveyor by means of two T-shaped guide beams and slots of the rigidly mounted semi-jacket, and longitudinal movements of bottom-hole pickup mechanism are performed by means of power spacer-feed mechanism mounted on the guide semi-jacket enveloping the lower part of the drag conveyor trough line, and consisting of two horizontal equally-spaced, parallel, opposite-directed and telescopic spacer hydraulic jacks and two feed hydraulic jacks located along the sides of drag conveyor and hinged to rigid semi-jacket of support plate and to the guide semi-jacket of power spacer-feed mechanism.

EFFECT: development of structural scheme of self-moving pickup mechanism with a rigid trough line designed for taking considerable loads from the mined rock broken with blasting and for moving along the trough line of the loading machine, boring plant or another excavation equipment.

3 dwg