An unmanned vehicle capable of tunneling into soft materials, such as sand, comprises a hollow, bullet-shaped forward outer body with a first drive screw thread integrated into its exterior, a hollow cylindrical rear outer body with a second drive screw thread integrated into its exterior but threaded in the opposed direction of the first drive screw thread, and an inner body that is rotatably coupled to the inside of the forward and rear outer bodies via mechanical gears, and including directional control fins mounted on a housing at the rear end of the inner body.

An unmanned vehicle capable of tunneling into soft materials, such as sand, comprises a hollow, bullet-shaped forward outer body with a first drive screw thread integrated into its exterior, a hollow cylindrical rear outer body with a second drive screw thread integrated into its exterior but threaded in the opposed direction of the first drive screw thread, and an inner body that is rotatably coupled to the inside of the forward and rear outer bodies via mechanical gears, and including directional control fins mounted on a housing at the rear end of the inner body.

An all-terrain rover is provided in which the arrangement of flanges of one or more cylinders of first and second cylinder systems allow for forward and backwards motion, as well as turning and sideways motion of the roller. An all-terrain rover is further provided in which the flanges of the first cylinder system are oriented opposite to an orientation of the flanges of the second cylinder system such that, in counter-rotation, a forward or reverse motion results from contact between the flanges and a surface of travel. An all-terrain rover is further still provided in which the flanges of a first cylinder of the first cylinder system is oriented in an opposite orientation to the flanges of a second cylinder of the first cylinder system and the orientation of a first cylinder of the second cylinder system is oriented in an opposite orientation to the flanges of a second cylinder of the second cylinder system such that each cylinder can be rotated in an individual direction and individual speed to create forward and backwards motion along the axis of the cylinders as well as steerable motion.

A piled grain surface management robot comprises an auger-based drive system, a memory, and a processor coupled with the memory. The processor is configured to control movement of the robot via the auger-based drive system. The processor is also configured to direct a traversal of a surface of piled grain in a bulk store, wherein a crust layer of the surface is broken up by auger rotation of the auger-based drive system during the traversal.

A robot having four screw propeller barrels and able to walk on all types of terrains is provided and includes: a housing, wherein each of four corners of the housing is arranged with a driving shaft, four driving shafts are arranged for the four corners and form a rectangle and are connected to a motor, a rotation surface of the driving shaft is parallel to a same vertical surface. An end of the driving shaft is arranged with a connection base, the connection base is arranged with a shaftless motor, an output end of the shaftless motor has a rotation surface perpendicular to the rotation surface of the driving shaft. The output end of the shaftless motor is arranged with a connection bracket, a bottom surface of the connection bracket is arranged with a plurality of connection rings arranged successively along a straight line.

A self propelling vehicle capable of propagating through a solid medium, comprising two or more rotors, arranged in tandem, and means for rotating the rotors, each rotor being formed as a hollow rotational body with an external helicoidal flighting, configured to engage surrounding solid medium, wherein the flightings of any pair of adjacent rotors follow helicoids of mutually opposite senses and the means for rotating are operative to rotate the adjacent rotors in mutually opposite senses.

Spiral drive mechanism, particularly for mechanical vehicles, land and water machines, comprises of deformable spiral (1) of spindle shape, on one side resting on a rocker arm (2) with bearing, attached to the vehicle through a moving joint, through an axle (3) that moves the front part of the spiral in vertical, longitudinal and transverse axis. On the other side, it rests on a pendulum-moving driving axle of the vehicle (4), propelling rotating motion of the spiral and thus causing movement of the vehicle.

Spiral drive mechanism, particularly for mechanical vehicles, land and water machines, comprises of deformable spiral (1) of spindle shape, on one side resting on a rocker arm (2) with bearing, attached to the vehicle through a moving joint, through an axle (3) that moves the front part of the spiral in vertical, longitudinal and transverse axis. On the other side, it rests on a pendulum-moving driving axle of the vehicle (4), propelling rotating motion of the spiral and thus causing movement of the vehicle.

A grain management system includes a robot and a computer system located remotely from one another and configured to wirelessly communicate. The robot comprises an auger-based drive system, a memory, and a processor which controls movement of the robot, via the drive system, relative to grain in a bulk store. During a load-in the robot traverses a landing zone portion, where the grain lands during load-in, of a surface of a pile of the grain to disperse broken grain and foreign material away from the landing zone portion. The dispersal is effected in part by rotation of augers of the drive system. The robot additionally traverses a sloped portion of the pile of grain to incite sediment gravity flow by rotation of the augers. The sediment gravity flow reduces a slope of the sloped portion and further disperses the broken grain and foreign material away from the landing zone portion.

A robot comprises an auger-based drive system, a memory, and a processor coupled with the memory and configured to control movement of the robot, via the auger-based drive system, relative to grain in a grain bin. The processor is further configured to direct performance of a maintenance traversal, by the robot, of a surface of a pile of the grain during a storage period of the grain. The maintenance traversal disperses a layer of the grain on and near the surface and thus hinders crust formation on the surface during the storage period. The dispersal is effected by rotation of augers of the auger-based drive system during the maintenance traversal.