| CPC B64U 30/297 (2023.01) [B64U 20/80 (2023.01); G05D 1/857 (2024.01); B64U 2101/40 (2023.01); B64U 2201/104 (2023.01); G05D 2107/21 (2024.01); G05D 2109/254 (2024.01)] | 5 Claims |
|
1. A tilt rotor-based linear multi-rotor unmanned aerial vehicle structure for a crop protection, comprising main lift power structures, tilt power structures, and a main frame structure, wherein the main frame structure is located in a middle; the main lift power structures are distributed at left and right ends of the main frame structure; and the tilt power structures are symmetrically distributed between the main frame structure and the main lift power structures;
the main lift power structures each comprise a main lift blade, a main lift motor, a main lift motor fixing plate, a main lift electronic speed controller, first tube clamps, a centrifugal nozzle, two slave-control fixing plates, a main lift slave-control circuit board, and a main rod; the main lift blade is screwed to the main lift motor; the main lift motor is screwed to the main lift motor fixing plate, is clamped through the first tube clamps, and is fixed to the main rod together with the centrifugal nozzle below; the main lift electronic speed controller and the main lift slave-control circuit board are respectively fixed to the two slave-control fixing plates, and are fixed to the main rod through the first tube clamps; the main lift slave-control circuit board is configured to receive a command from a control board and provide a signal to the main lift electronic speed controller to drive the main lift motor to rotate; and the centrifugal nozzle is internally integrated with a motor speed controller, and directly drives a speed control through a pulse width modulation (PWM) signal received from the main lift slave-control circuit board;
the tilt power structures each comprise two tilt carbon plates, a tilt slave-control circuit board, a servo fixing aluminum part, a servo, a tilt electronic speed controller, two clamping aluminum parts, second tube clamps, a tilt motor fixing plate, a bearing fixing aluminum part, a tilt carbon tube, two bearings, a tilt motor, and a tilt blade; the tilt slave-control circuit board and the tilt electronic speed controller are respectively screwed to upper parts of the two tilt carbon plates; the upper parts of the two tilt carbon plates are fixed to the main rod through the first tube clamps; the tilt carbon tube is provided at a middle part between lower ends of the two tilt carbon plates; two ends of the tilt carbon tube are fixed by the two bearings and two of the second tube clamps; the bearing fixing aluminum part is configured to fix the two bearings; the two clamping aluminum parts jointly clamp the tilt carbon tube; the tilt carbon tube is provided with a perforation such that fixing positions of the clamping aluminum parts are relatively consistent; the servo fixing aluminum part is located at a position close to an end of the tilt carbon tube; the servo fixing aluminum part is configured to fix the servo; an output shaft of the servo is nested in a groove of the clamping aluminum parts to drive the tilt carbon tube to rotate; the tilt blade is fixed to the tilt motor through a nut; and the tilt motor fixing plate is provided with a tilt motor mounting hole to connect and fix two of the second tube clamps to the tilt carbon tube; and
the main frame structure comprises a level gauge, an inertial navigation module, a shock pad, the control board, a global positioning system (GPS) antenna, a program downloader, a remote control receiver, tees, a small battery, a small battery fixing plate, a water pump fixing plate, a water pump, an onboard battery, a battery fixing plate, a crossbar, a latch plate, a water tank fixing plate, two undercarriage carbon tubes, a water tank, a water level gauge, landing carbon tubes, and two fixed carbon plates; the inertial navigation module, the program downloader, the remote control receiver, and the water level gauge are connected to the control board through an interface on the control board to transmit data to the control board; the small battery is configured to supply power to the control board and a sensor through a battery interface on the control board; the level gauge, the shock pad, the control board, the GPS antenna, the program downloader, and the remote control receiver are screwed and hard-wired to the two fixed carbon plates; the two undercarriage carbon tubes are fixedly connected to the main rod through the tees; the two fixed carbon plates are fixed to the main rod through four of the first tube clamps, screws, and nuts; the water pump fixing plate is fixed to one of the undercarriage carbon tubes through two of the first tube clamps, and is provided with a water pump positioning and mounting hole for convenience of fixing the water pump; the small battery is bound to the small battery fixing plate through a battery strap for convenience of a quick replacement; the small battery fixing plate is fixed to the main rod through two of the first tube clamps; the latch plate and the water tank fixing plate are provided with same tube clamp positioning holes, and are fixed to the crossbar through four of the first tube clamps; the crossbar is connected to the undercarriage carbon tubes through the tees; the onboard battery serves as a main power supply module of an unmanned aerial vehicle, and is fixed to the battery fixing plate through a battery tie; the battery fixing plate is connected to the latch plate through a sliding groove; the water tank fixing plate is provided with a water tank positioning and mounting hole for convenience of fixing the water tank; the water level gauge is located at a bottom of the water tank, and is configured to measure a water level of the water tank based on an ultrasonic principle; and the two undercarriage carbon tubes are respectively fixedly connected to the landing carbon tubes through two of the tees for landing cushioning of the unmanned aerial vehicle.
|