ULTRASONIC DRAG HEAD Russian patent published in 2014 - IPC E21C51/00 B64G4/00 E21B25/10 G01N1/00 

FIELD: mining.

SUBSTANCE: ultrasonic drag head is designed for drilling of ground to the depth of up to 2 metres at the speed of up to 20 mm/min per passto take samples without changing the composition. Drag head consists of an ultrasonic oscillating system with a working tool, an ultrasonic generator and a control system. Ultrasonic generator and control system are fixed on a space lander. On a waveguide of ultrasonic oscillating system there installed is a frame on which heat-insulated containers to take ground samples with a turning opening/closing mechanism, heat accumulators and a passive temperature stabilisation system are fixed. Ultrasonic oscillating system is equipped with a temperature sensor of drag head containers, which is connected to the control system of drag head. Sizes of each next element of the ultrasonic oscillating system are chosen based on compliance with resonant frequency of piezoelectric converter.

EFFECT: invention is able to take ground samples without thermal destruction and evaporation of volatile components.

6 dwg