Underwater servo propeller

Abstract

The invention discloses an underwater servo propeller which belongs to the technical field of ocean vessels, and the underwater servo propeller comprises a controller, a hanging frame, a hydraulic motor, a propeller, a magnetorheological fluid moment coupler and a force sensor, the controller is connected with the hydraulic motor to transmit control signals, the hydraulic motor is fixed at the bottom end of the hanging frame, the propeller is connected with the hydraulic motor, the hanging frame is internally provided with the force sensor, the force sensor is connected with the controller, the output end of the hydraulic motor is provided with the magnetorheological fluid moment coupler, and the magnetorheological fluid moment coupler is connected with the propeller. By adopting the hydraulic motor, the underwater servo propeller maintains the advantages of high power and small volume of a hydraulic system; and simultaneously, as a hydraulic servo valve is omitted, rotation speed control is realized by adopting the mode that the magnetorheological fluid moment coupler is connected at the output end of the hydraulic motor in series.

Description

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AI Technical Summary

Benefits of technology

This new design allows for better performance without requiring an expensive electric or pneumatic actuator at all times compared to existing designs that use either type of motors alone. It also eliminates any issues associated with traditional methods like oil lubrication systems due to its larger weight and smaller dimensions. Additionally, this technology can be used on both types of machines simultanously by connecting two different hydrauled servosity engines together through magnetic force-based devices called MTG (Magnetic Force Gear) coupling units.

Problems solved by technology

This technical problem addressed by these inventions relates to improving the functionality or usableness of an oceanographic robot called Helion®, where various functions such as navigation, sensory feedback, communication, etc., may be needed without sacrificial equipment like heavy machinery. Current methods involve bulky and costly hydropell systems, requiring highly controlled pumps and strong electricity sources.

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