Electric duct pipe water-jet propeller

Abstract

The invention discloses an electric duct pipe water-jet propeller. The water-jet propeller is smaller than the conventional size, has the characteristics of light weight, simple structure and easy control, and can meet the installation and control requirements of small robot platforms. The electric duct pipe water-jet propeller includes: a shell fixation unit and a motor driving unit; the shell fixation unit includes: a water inlet cover, a shell, a guide guard and a water jet cover that are coaxially connected in order; the motor driving unit includes: a motor and screw propellers; the motoris fixed inside the guide guard, and the power output shaft of the motor serves as a rotating shaft and is toward the direction of the water inlet cover, the screw propellers are connected to the rotating shaft, and rotate under the driving of the rotating shaft. The water-jet propeller with the structure provided by the invention can realize rapid underwater motion of an underwater robot and floating and submergence of a robot because of large thrust.

Description

technical field [0001] The invention relates to a propeller, in particular to a water jet propeller. Background technique [0002] Along with the process of human understanding of the ocean, development of the ocean, utilization of marine resources and protection of marine resources, underwater robots, as a kind of underwater mobile, with vision and perception systems, through remote control or autonomous remote control, use machinery or other tools to replace or Devices that assist people to complete underwater tasks play an important role in the development and utilization of the ocean. [0003] Underwater robot is a typical military-civilian dual-use technology. It can not only be used for the exploration and development of sea resources, but also play an irreplaceable role in naval warfare. In order to compete for sea dominance, various countries are developing underwater robots for various purposes. As the power provider of underwater robots, underwater propulsion has...

AI Technical Summary

Problems solved by technology

One is that the power loss at the water inlet is relatively high, and no good method has been found to further reduce this loss

Second, when the pump jet propeller is navigating in shallow water, especially in waters with a lot of gravel, there is a danger of sucking gravel and gravel into the system.

[0015] However, the existing underwater propellers have the following problems: At present, most underwater robots use torpedo-shaped design and propeller propulsion.

In addition, the propeller propeller has air pockets, is noisy, and has a large cavitation loss, which reduces the concealment performance and biocompatibility

When the weight of the robot is large, the thrust of the existing water jet propulsion is insufficient to meet the speed requirements of underwater movement, and the up and down in the water cannot be realized due to insufficient thrust

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