3results about How to "Reduce the windward area" patented technology

The application relates to a force couple balance and longitudinal array push-pull vertical take-off and landing high-speed aircraft, belonging to the technical field of aircrafts, which comprises a fuselage, a rotor, a fixed wing, a steering controller and a propeller. The rotor is installed at the top of the middle part of the fuselage through a rotor shaft, and a clutch is arranged between the rotor and a power system and / or a transmission system matched with the fuselage, so as to be controlled to be disconnected or to transmit power to the rotor. The steering controller comprises a fixed base and a rotating base, and each of the nose and the tail has a set of the rotating base. The propeller is provided with two propellers which are respectively installed on the rotating bases of the nose and the tail, and are controlled to rotate with the rotating bases relative to the fixed base. The force couple formed by the front and rear thrust vectors is used to balance the reverse torque brought by the rotor. When the propeller is coaxial with the middle axis of the fuselage, the wind area of the single propeller obtains double thrust. The application can improve the energy utilization rate, improve the carrying capacity, improve the flight safety performance and obtain a longer hovering time.

This invention discloses an underactuated robot leg and a flying robot with adaptive landing and grasping capabilities. The underactuated robot leg includes a frame assembly, symmetrically arranged first and second leg units, a first actuator, a second actuator, and a corresponding transmission mechanism. The frame assembly includes a frame plate and two support components. Each leg unit has a first leg structure and a second leg structure arranged side by side. Connected by the support components, the mounting plane of the first leg structure is lower than that of the second leg structure, forming a staggered layout. This invention reliably switches the underactuated robot leg between a passive adaptive stable support configuration, an active grasping configuration, and a folding and storage configuration simply by controlling the extension and retraction of the first and second actuators, solving the contradictory problem of balancing passive adaptive landing on undulating terrain and active grasping of objects within the same mechanism.

The utility model discloses an insulator's wind -resistant protection structure, including first hanging board, insulator string and second hanging board, and insulator string left and right sides symmetry set up rotating mechanism and pendulum mechanism, the outer wall of insulator string is fixedly installed with the installation carrier plate, and the outer wall of installation carrier plate is fixedly connected with fixed plate, and the middle part of fixed plate is connected with first axle sleeve through first fixed rod and fixed nut, and first axle sleeve is equipped with first graphite self -lubricating bearing and connects second fixed rod, and second fixed rod end is connected with pendulum mechanism through second axle sleeve and second graphite self -lubricating bearing, and pendulum mechanism includes hanging rod, tungsten alloy pendulum, guide vane and limiting nut, and the top of hanging rod is provided with limiting nut, and hanging rod is fixed in second graphite self -lubricating bearing through limiting nut, and the wind -resistant protection structure of this insulator passes through the inertia damping effect of rotating mechanism's multiple degree of freedom moment transmission and pendulum mechanism, forms " dynamic capture, energy conversion, airflow interference's " three -fold protection mechanism.