Summary of ExoMars Drill Unit
According to an article by the European Space Agency (2019, September 1), the “ExoMars Drill unit” is a robot devised to drill into various types of soils to retrieve soil specimens of maximum 2 metres of depth. After obtaining a core specimen, it will be transported to the inlet port of the Rover Payload Module, where it will be examined by the Analytical Laboratory Drawer. It is supposed to operate through the required lifetime of 7 experiment cycles of the ExoMars mission.
The Drill consists of 5 components. The drill tool is roughly 700mm long, furnished with an acquisition device which contains a shutter, movable piston, position, temperature sensors, and Ma_Miss tip components. A set of three 500 mm extension rods were made to increase the penetration length to two meters. The rotation-translation group helps with the movement of the drill. The drill-box structure contains the clamping system and automatic engage-disengage mechanism for the rods. Lastly, a back-up drill tool for non-nominal situations.
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