| 摘要 |
FIELD: mining.SUBSTANCE: impact-action device for formation of wells in soil includes housing, a hydraulic hammer with an anvil, a hollow tip in the form of a cylindrical housing with a flattened cone, the front end face of which is provided with an annular knife, and four radially cutting knives arranged inside the hollow tip at an angle to each other. A rotating activator consisting of a high-torque hydraulic motor and a cylinder, on the inner surface of which a screw with a variable pitch of spiral is located, is installed in the rear part of the tip. Atomisers are located on the front part of the screw. Emulsion supply communications are located inside the screw spiral.EFFECT: improving efficiency of routing and reducing power consumption for development of wells in soil.3 dwg |
