7results about "Retractable wheels" patented technology

The invention discloses a driving, rotating and flying integrated unit based on differential bevel gears and a control method of the driving, rotating and flying integrated unit, and belongs to the technical field of land-air integrated traffic tools. The integrated unit is highly integrated with a wheel assembly, a driving, rotating and flying integrated actuator, a suspension system and a disconnectable connecting unit. According to the rotation and flight driving integrated actuator, based on a differential bevel gear mechanism, through rotation speed coupling output of two sets of isomorphic execution motors, self-rotation driving of wheel half shafts and decoupling control over revolution deflection around the axis of a main pin are accurately achieved. In combination with cooperation of the brake-by-wire system and the electromagnetic clutch, the unit can realize two modes and switching thereof: in a land running mode, efficient drive braking and steering are completed; in the flight mode, direct torque and active vector flight control is realized by utilizing a wheel-wing integrated structure; and under configuration transformation, the wheel edge mechanism is integrally overturned to realize attitude reconstruction. According to the method, the hardware redundancy is extremely simplified, and meanwhile, the cross-domain maneuvering capability and the control flexibility of the system are remarkably improved.

The invention relates to the technical field of tunnel engineering detection. An industrial tunnel disease detecting and positioning vehicle comprises a vehicle body composed of a base and a push handle, and guide wheels are arranged at the bottom of the vehicle body; a front image acquisition system and a side image acquisition system are arranged on the vehicle body; an adjusting device and a lifting device are further arranged on the vehicle body; an industrial personal computer and a display are arranged on the vehicle body and are used for controlling the operation of the whole system; and a disease marking device is also arranged on the vehicle body. The invention provides an industrial tunnel disease detection positioning vehicle which can effectively improve the detection and marking of tunnel diseases, greatly facilitates the subsequent maintenance, optimizes the operation experience and the detection efficiency, and can meet higher detection requirements. The technical problems that in the prior art, current tunnel detection generally depends on manual inspection, the detection efficiency is low, the risk is high, the subjectivity is high, the detection efficiency of a common image acquisition system is not ideal enough, maintenance personnel need to find disease positions for the second time, and higher detection requirements cannot be met are solved.

The invention provides a powered retraction system for a wheel. The retraction system includes an actuation system to raise the wheel to a stowed position and to lower the wheel to a steer position. The actuation system includes: a motor that is operably connected to a rotatable torsion controller to rotationally drive the torsion controller about a torsion controller axis; a torsion element comprising opposing first and second ends; and a swing arm operably connected to the wheel axle and rotatable by the torsion controller about a swing arm axis to raise and lower the wheel. The first end of the torsion element engages with the rotatable torsion controller and the second end of the torsion element engages with the swing arm. When in the steer position, the torsion element is tensioned to urge the spring arm, and in turn the wheel, downwards.

An amphibious vehicle with liftable suspensions includes a vehicle body. A driving assembly, a front axle transmission assembly, and a rear axle transmission assembly are disposed in the vehicle body. The front axle transmission assembly and the rear axle transmission assembly are respectively arranged on two ends of the drive assembly, and the drive assembly is in transmission connection with the front axle transmission assembly and the rear axle transmission assembly. The drive assembly enables the front axle transmission assembly and the rear axle transmission assembly to drive the front axle transmission shaft components and the first rear axle transmission shafts, thereby to achieve four-wheel travelling on land. Additionally, the amphibious vehicle can adjust heights of the vehicle body according to different road conditions using air springs and worm wheels, thereby adjusting a ground clearance to adjust various road surfaces and speeds.

Described is a hybrid transportation system with hybrid vehicles (H-vehicles) that can travel on pavement (or off-road), then transition to railroad track travel, and then later transition back onto pavement without stopping or requiring an operator to exit the vehicle. At static rail junctions (with no moving switch parts) the H-vehicle selects its outgoing track. Turns at passive junctions are made by applying lateral force which may be applied using multiple methods including side roller diverters, dual flange rail wheels, and steering. Separate road wheels and rail wheels may be employed on an H-vehicle, or a combination wheel can be used with concentric road and rail wheel components. Combination wheels may be locked together or unlocked with relative rotational angular velocities. Transition between road and rail travel is facilitated using transition spans which connect roads to rails. Improved rail-only vehicles (R-) vehicles and junctions are also described.

The invention discloses a four-rotor flying vehicle with flying and crawling functions and a control method thereof, and belongs to the technical field of four-rotor flying vehicles, the four-rotor flying vehicle comprises a rack, the rack is provided with an auxiliary control unit, a core control unit, a power unit and an image acquisition and transmission unit, the auxiliary control unit is used for receiving signals sent by a remote controller, and the core control unit is used for controlling the power unit and the image acquisition and transmission unit; the core control unit is in signal connection with the auxiliary control unit, the core control unit is used for receiving PPM signals generated by the auxiliary control unit and obtaining position data, the power unit is in signal connection with the auxiliary control unit and the core control unit, and the power unit comprises a wall climbing power module and a flight power module. And the image acquisition and transmission unit is in signal connection with the auxiliary control unit and is used for acquiring an environment image and transmitting the environment image to the auxiliary control unit. The quadrotor flying vehicle has the flying and crawling effects.