Marine propeller

Abstract

The invention discloses a marine propeller. The marine propeller comprises a propeller, a movable cover ring, a transmission mechanism and a net entangling prevention device. The transmission mechanism is connected with the propeller through a transmission rod, the net entangling prevention device is connected with the movable cover ring through a rod, the propeller comprises paddle blades and endcutting blades, end cutting edges are arranged on the movable cover ring, and the end cutting blades and the end cutting edges combine to form shearing edges. When the propeller on a ship is entangled by weeds or fishing nets, the end cutting blades on the propeller and the end cutting edges on the movable cover ring combine to form the shearing edges to cut the weeds and the fishing nets into pieces; when the end cutting blades on the propeller and the end cutting edges on the movable cover ring are not sharp enough, a user can remove the end cutting blades and the end cutting edges, and theend cutting blades and the end cutting edges can be used again by replacing with new end cutting blades and end cutting edges; when the movable cover ring is not entangled by junks such as the weedsor the fishing nets and the like, the movable cover ring is away from the paddle blades on the propeller, and the paddle blades are not confined by the movable cover ring; and when the movable cover ring is entangled with junks such as the weeds and the fishing nets, the movable cover ring surrounds one side of the propeller to guarantee that the paddle blades are not affected by the junks.

Description

technical field [0001] The invention relates to a propeller, in particular to a marine propeller. Background technique [0002] With the continuous improvement of science and technology, the ship industry has become more and more developed, and people have higher and higher requirements for ships. The propeller, as a propulsion device that converts the rotational power of the engine into propulsion, is an important component, its performance requirements are particularly stringent. At present, the propellers of boats are all exposed to work. When rotating at high speed, they are easily entangled by weeds or fishing nets in the water. Harm to rare fish in the water. When the ship is driving in the shallows, the propeller is likely to collide with hard materials such as stones at the bottom of the water, causing the propeller to be easily damaged. Therefore, the propellers on the existing ships need to be equipped with protective devices, so that the propellers are not easi...

AI Technical Summary

Problems solved by technology

At present, the propellers of boats are all exposed to work. When rotating at high speed, they are easily entangled by weeds or fishing nets in the water, which not only increases the load on the engine, but also makes the propellers unable to rotate. Harm to rare fish in the water

When the ship is driving in the shallows, the propeller is likely to collide with hard materials such as stones on the bottom of the water, causing the propeller to be easily damaged

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