Auxiliary propulsion system of underwater vehicle

Abstract

The invention relates to an auxiliary propulsion system of an underwater vehicle, comprising a shell the bottom of which is provided with an opening, wherein the shell is connected with the underwater vehicle; the lower part of the shell is provided with a hollow rotating shaft penetrating from front to back; two ends of the hollow rotating shaft are borne by a bearing arranged outside the shell, one end of the hollow rotating shaft is connected with a rotary retractable device, the middle of the hollow rotating shaft is provided with a base; and an integrated propulsion device is arranged through the base and rotates to enter into or leave out of the inner cavity of the shell along a plane vertical to the hollow rotating shaft under the action of the rotary retractable device. In the invention, the auxiliary propulsion system can be flexibly retracted in or out of the shell of the underwater vehicle through the rotary retractable device, and the propulsion direction is changed through a rotary mechanism. The rotary retractable device consisting of a reducer and a hydraulic motor and the rotary mechanism are adopted to realize low-speed high torque performance, and hydraulic driving can be used to realize no-energy self-locking, no-energy vibration absorption and other functions. The system has the characteristics of high efficiency and flexibility, low vibration and low noise, thus being applicable to the auxiliary propulsion of the underwater vehicle.

Description

technical field [0001] The invention belongs to the field of underwater propulsion devices, in particular to a shaftless propulsion device that can be retracted and rotated, and can be used for propulsion of underwater vehicles. Background technique [0002] The propulsion device is one of the essential key components of the underwater vehicle, which is used to realize the forward and backward movements of the underwater vehicle. [0003] The propulsion device can be divided into a shaft propulsion device and a shaftless propulsion device. The shaft propulsion device is usually powered by a motor arranged in the shell of the underwater vehicle, and the propeller located outside the shell is driven by the transmission shaft to rotate, thereby promoting underwater navigation. The drive train of this propulsion method is too long, which is easy to cause vibration and noise, and the propulsion efficiency is not high; the shaftless propulsion uses an integrated propeller integrat...

AI Technical Summary

Problems solved by technology

[0004] In the shaftless propulsion device, the integrated propeller generally adopts an arrangement that is fixed outside the hull of the underwater vehicle or placed inside the hull. These two arrangements are simple in structure but not flexible enough, so there is an urgent need for a The integrated thruster retracts or releases, a thruster with great flexibility

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