ANCHORING MECHANISM FOR DRILLING-AND-ANCHORING DEVICE OF HEADING MACHINE Russian patent published in 2006 - IPC E21C35/00 

FIELD: coal industry, particularly miscellaneous items relating to machines for slitting or completely freeing mineral from seam.

SUBSTANCE: drilling-and-anchoring device comprises drill-rod with conical collar, anchoring hydraulic cylinder acting in single direction and provided with annular piston, as well as anchoring shoes. Each anchoring shoe is pivotally connected directly with annular piston by the first end thereof. Another anchoring shoe end is brought into contact with conical collar surface facing anchoring hydraulic cylinder.

EFFECT: simplified anchoring mechanism structure.

3 dwg