FIELD: devices for making holes in ground. SUBSTANCE: device has motor, hollow drive shaft, eccentric bushings, rollers, appliance for changing direction of rolling, control system of appliance for changing direction of rolling and feed mechanism. Motor is kinematically connected with drive shaft. Appliance for changing direction of rolling has shaft, ball joint, main roller and main roller turning mechanism. Feed mechanism is made in form of shell with blades to interact with walls of formed hole and planetary reducing gear. Main roller turning mechanism presents hydraulic cylinders, ball support and hydraulic control valves. Ball support is articulated with its one end to shaft of ball joint, and with its other end, to rods of hydraulic cylinders. EFFECT: higher efficiency. 4 cl, 9 dwg
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RU2024684C1 |
