Underwater thruster and underwater robot

Abstract

The invention provides an underwater thruster. The thruster comprises a motor structure, a supporting guiding structure and one or more blades; the motor structure comprises a rotor assembly and a stator assembly; the supporting guiding structure and the blades are installed on the stator assembly and the rotor assembly respectively; the rotor assembly comprises a housing, and the blades are directly and fixedly installed on the housing in the circumferential direction, or the blades are indirectly installed on the housing after the blades are integrally shaped through arranged blade connecting members; the housing is located on the radial direction outer side of the stator assembly; the supporting guiding structure comprises a guiding pipe, and the blades are located on the radial inner side of the guiding pipe. The invention further discloses an underwater robot including the underwater thruster. By means of the underwater thruster, the core problem of waterproofing of a underwater motor is solved, a pressure resistant sealing cabin is no longer necessary to be made for a motor, the structure of the thruster is greatly simplified, and the weight, size and production cost of the thruster are effectively reduced.

Description

technical field [0001] The invention relates to the field of underwater propulsion, in particular to an underwater propeller and an underwater robot. Background technique [0002] The global underwater robot is developing rapidly in the direction of miniaturization and intelligence, and the new underwater propeller with small size, simple structure, high power, safety and reliability is the basis for the miniaturization and intelligence of underwater robots. [0003] The traditional underwater propeller usually adopts the form of axial arrangement of the propeller blade and the motor, and the motor is arranged in the pressure chamber to resist the effect of underwater high pressure. This kind of underwater propeller is usually long in length and the whole structure is heavy. The thrust-to-weight ratio is generally less than 5:1. In the deep water environment, the strength requirements of the pressure cabin are high, and the deep water environment adaptability and manufacturi...

AI Technical Summary

Problems solved by technology

[0003] Traditional underwater propellers usually adopt the form of axial arrangement of propeller blades and motor, and the motor is arranged in a pressure chamber to resist the effect of underwater high pressure. This kind of underwater propeller is usually long in length, and the whole structure is heavy. Thrust-to-weight ratio is generally less than 5:1. In deep water environment, the strength requirements of pressure cabin are high, and the deep water environment adaptability and manufacturing cost are high.

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