Novel underwater propeller

Abstract

The invention provides a novel underwater propeller. The novel underwater propeller comprises a propelling assembly and a heat dissipation sealing assembly; a heat dissipation sealing assembly is arranged in the propelling assembly; the heat dissipation sealing assembly comprises a small propeller, a sealing ring, a watertight pipe connector, a motor hollow shaft, a motor rotor, a motor stator, a shell, a cover body, a cavity and a macromolecule sealing hose; and the motor stator is bonded to the inner side wall of the shell, the motor rotor is arranged in the motor stator, the motor hollow shaft is fixedly connected to the interior of the motor rotor, and the small propeller is fixedly connected to the bottom of the motor hollow shaft. According to the novel underwater propeller, internal circulation is achieved by designing the motor hollow shaft and the small propeller, the thermal environment in the motor is improved, and heat dissipation with higher efficiency is achieved; pressure compensation is achieved through the macromolecule sealing hose, a compensator is replaced, and the mechanism of the novel underwater propeller is simplified; a large propeller and a fairing are made of high polymer materials, are high in strength and resistant to corrosion, and are ingeniously matched with each other to achieve higher efficiency.

Description

technical field [0001] The invention relates to the technical field of underwater propellers, in particular to a novel underwater propeller. Background technique [0002] Most electric underwater propellers use motors to rotate to drive propellers to generate thrust. Propellers for operational-grade underwater robots need to withstand high water pressure. The greater the operating depth, the greater the water pressure. However, the existing underwater propulsion There are also certain defects in the use of the device. [0003] 1. Most of the motors used in existing underwater thrusters are high-power-density motors, which generate a lot of heat and form a temperature gradient inside the propeller, causing the temperature inside the propeller to rise sharply. If the temperature is too high, it will affect the performance of the motor. Work efficiency affects the normal work process. [0004] 2. Traditional underwater propellers are sealed by oil filling, and compensators ar...

AI Technical Summary

Problems solved by technology

[0003] 1. Most of the motors used in existing underwater thrusters are high-power-density motors, which generate a lot of heat and form a temperature gradient inside the propeller, causing the temperature inside the propeller to rise sharply. If the temperature is too high, it will affect the performance of the motor. Work efficiency, affecting the normal work process

[0004] 2. Traditional underwater propellers are sealed by filling oil, and compensators are used to adapt to the pressure brought by the water depth. The structure of underwater propellers using compensators is too complicated, and the cost is high and expensive

[0005] Thereby there is not yet an underwater thruster with excellent thermal performance, low cost and simple structure.

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