Rim type shaftless propulsion hybrid power system for unmanned surface vehicle

Abstract

The invention relates to a rim type shaftless propulsion hybrid power system for an unmanned surface vehicle. The system comprises a power source unit, a high-voltage switch box, a shaftless propellerand a steering device. The power source unit is used for providing two power supply modes. The shaftless propeller comprises bearings, a bearing sleeve, thrust discs and a variable frequency motor. The bearings are arranged at the two ends of the bearing sleeve correspondingly. The thrust discs are arranged on the outer sides of the bearings correspondingly. Permanent magnets are arranged on theouter side faces of the bearings. Permanent magnets are arranged on the inner side faces of the thrust discs. The permanent magnet faces of the thrust discs and the permanent magnet faces of the bearings repel each other. A permanent magnet is arranged in a rotor of the variable frequency motor, after powering, a magnetic field is generated, and therefore a propeller blade connected with the rotoris driven to rotate. The system is provided with power sources of two drive modes, the high speed requirement and the low speed requirement are met, and meanwhile the propeller is super silent.

Description

technical field [0001] The invention belongs to the technical field of unmanned boats, and in particular relates to a hybrid power system for a rim type shaftless propulsion unmanned boat. Background technique [0002] The unmanned boat is a small ship that is unattended and has high requirements for all aspects. The reason why the unmanned boat has developed rapidly is that some places need to use unmanned boats to perform special tasks, such as shallow waters. Surveying and mapping, marine fishery administration duty, and patrol and reconnaissance, these tasks are not suitable for large manned ships, and when unmanned boats perform these tasks, unmanned boats must sail silently, fast, and sometimes at low speeds Sailing to suit a variety of working conditions. At the same time, the traditional power propulsion system design of speedboats often only adopts a single power source provided by a fuel generator set or a battery pack, which is transmitted through a conventional ...

AI Technical Summary

Problems solved by technology

At the same time, the traditional power propulsion system design of speedboats often only adopts a single power source provided by a fuel generator set or a battery pack, which is transmitted through a conventional propeller (with shafting, and most of these shaftings require two bevel gears and shafts). The system transmits torque to propeller propulsion) propulsion

The drive mode is single, which is inconvenient to well adapt to the needs of multi-working conditions; the shafting transmission has a lot of mechanical losses, and there is also the risk of oil leakage that is likely to pollute the environment; the shafting transmission takes up a lot of space and is heavy. will make some noise

The traditional hybrid system is mainly driven by the fuel engine directly through the shafting (gearbox, etc.) to drive the propeller, and at the same time, the power from the additional generator drives the electric motor to drive the shafting to rotate to achieve hybrid drive. It is often used on merchant ships. For speedboats Unable to arrange and implement due to the small space

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