Water-air dual-purpose propeller adopting double motors

Abstract

The invention belongs to the technical field of propellers, and particularly relates to a water-air dual-purpose propeller adopting double motors. Comprising an outer rotor motor, a rim motor, a propeller, a stator support, a one-way clutch mechanism and a propeller mounting frame, the outer rotor motor is fixedly connected with the propeller mounting frame through the stator support, and an output shaft of the outer rotor motor is fixedly connected with the propeller; the rim motor sleeves the outer side of the propeller and is connected with the stator bracket; the one-way clutch mechanism is arranged between the rim motor and the propeller and is used for separating or wedging the rim motor and the propeller; when working in the air, the one-way clutch mechanism and the propeller are in a disengaged state, and the outer rotor motor drags the propeller to rotate; when the device works underwater, the one-way clutch mechanism and the propeller are in a wedged state, and the wheel flange motor drags the propeller to rotate. The device is compact in structure and high in reliability, reliable disengagement and engagement of the rotor of the rim motor and the propeller are achieved through the one-way clutch mechanism, and underwater and aerial efficient propulsion is achieved.

Description

technical field [0001] The invention belongs to the technical field of propellers, and in particular relates to a water-air propeller with dual motors. Background technique [0002] The amphibious cross-domain vehicle is a new concept vehicle that can both navigate in the underwater environment and fly in the air, which can greatly expand the scope of operations and application fields. In order to realize the navigation function of the amphibious cross-domain vehicle in the underwater and in the air, the propellers with the functions of underwater and air operations are required. However, due to the different characteristics of water and air, such as density and viscosity, the thruster design methods are also quite different, and the requirements for the output characteristics of the thruster drive motor are very different. For the same propeller, high motor speed and low torque are required in the air, and low motor speed and high output torque are required for underwater ...

AI Technical Summary

Problems solved by technology

However, due to the different characteristics of water and air such as density and viscosity, the propeller design methods are also quite different, and the requirements for the output characteristics of the propeller drive motor are very different

For the same propeller, high motor speed and small torque are required in the air, and low motor speed and large output torque are required for underwater propulsion. The same motor can hardly meet the high-efficiency operation requirements in air and water at the same time.

The water-air propeller with the same propeller needs two kinds of motors with mechanical characteristics to achieve efficient propulsion in the air and underwater. At the same time, it is necessary to avoid dragging the low-speed motor to rotate when the high-speed motor is running, because on the one hand, it will increase the load on the high-speed motor , on the other hand, it will greatly increase the back electromotive force between the low-speed motor lines, which will have a destructive effect on the motor controller

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