RIG FOR ANCHOR BORE DRILLING Russian patent published in 2009 - IPC E21B3/02 E21B6/00 

FIELD: mining.

SUBSTANCE: invention refers to mining, particularly to drilling equipment and can be employed in rigs for anchor bores drilling in hard rocks The rig incorporates drill rod, its rotator, rest-feeder, air hammer, and bracket with control levers. The air hammer is assembled between the rotator and the rest-feeder coaxially with the drill rod, its rotator and the rest-feeder. The air hammer with its upper end is freely donned on guiding bushing of rotator case coaxial with it, while with its lower end it rests on an elastic shock bumper installed on the rest-feeder and fixed with the bushing put on the case of the air hammer and inserted into circular slot of an upper cover of the rest-feeder.

EFFECT: increased service life of rig and ensuring safe working conditions for mine workers due to eliminating vibrations from case of air hammer to rig structure.

2 dwg