FEEDING MECHANISM OF SCREW DRILL MACHINE

摘要

This invention relates to mining industry, in particular to design of screw drill machines. The feeding mechanism of screw drill machine has frame andmovable trolley with movable with respect to it screw drive. At least one main hydro-cylinder is connected with the body to the movable trolley, and with the rod û to the frame. Symmetrically to the long axis at least two additional hydro-cylinders are installed, those are directed towards the main hydro-cylinder. The bodies of the additional hydro-cylinders are connected to the movable trolley and the rods û to the movable drive of the screws. At that the piston cavities of the additional hydro-cylinders are hydraulically connected to the piston cavities of the main hydro-cylinders, and the rod cavities of the additional hydro-cylinders û to the rod cavities of the main hydro-cylinders. This invention promotes increase of depth of well drilling and decrease of overall dimensions of the feeding mechanism.