Propeller and amphibious landing craft using the propeller

Abstract

The invention discloses a propeller and an amphibious landing craft using the propeller, and relates to the technical field of ship equipment. It has an impeller cover, and a rotating shaft is arranged in the impeller cover along the length direction. The opening of the impeller protrudes out; there are multiple blades in the section where the rotating shaft is inside the impeller cover; the outer sides of the two ends of the blades are respectively fixed with circular cover plates, and the diameter of the circular cover plates is equal to the circular motion track formed when the blades rotate. Diameter, the two ends of the rotating shaft are closely attached to the circular cover plate and the compressed air distribution chamber box is installed. The inner end surface of the compressed air distribution chamber box is in contact with the blade end surface, and the inner end surface of the compressed air distribution chamber box is a circular sealing plate. There is an air distribution hole on the circular sealing plate, and the box of the compressed air distribution chamber communicates with the compressed air input pipe; compared with the prior art, the thrust of the propeller of the present invention is large, and the boat is suitable for low, medium and high speeds; The amphibious landing craft of invention can be used in water and places such as tidal flats, swamps, sandbars.

Description

technical field [0001] The invention relates to the technical field of ship power equipment and amphibious landing craft, in particular to a propeller and an amphibious landing craft using the propeller. Background technique [0002] A propeller is a tool that provides thrust on a ship. Its function is to convert the power generated by the motor into thrust to push the ship forward. Marine propellers are widely used on yachts, rubber boats and assault boats; good propellers can improve The speed and efficiency of the boat, reducing additional resistance, adapting to the draft of the navigation area, matching the power characteristics of the main engine, etc., thus people invented paddle wheel propellers, fully immersed propellers, surface slurry, flat inlet water jet propellers, air propellers, Jet propulsion, etc., they all have their own advantages and disadvantages, such as the paddle wheel propeller device is large, low efficiency, this type of propeller is currently les...

AI Technical Summary

Problems solved by technology

[0002] A propeller is a tool that provides thrust on a ship. Its function is to convert the power generated by the motor into thrust to push the ship forward. Marine propellers are widely used on yachts, rubber boats and assault boats; good propellers can improve The speed and efficiency of the boat, reducing additional resistance, adapting to the draft of the navigation area, matching the power characteristics of the main engine, etc., thus people invented paddle wheel propellers, fully immersed propellers, surface slurry, flat inlet water jet propellers, air propellers, Jet propulsion, etc., they all have their own advantages and disadvantages, such as the paddle wheel propeller device is large, low efficiency, this type of propeller is currently less used, and is in a state of elimination; the fully submerged propeller uses the entire disk to push water, and the output power is large , but the efficiency is low due to air bubbles at high speed, and the draft is deep, and the attachment resistance is large; the surface slurry has no attachment resistance, and the high-speed performance is good, and only half of the disk is used to push water, but at low speed, it is difficult to achieve large tonnage thrust; Imported water jet propulsion has small draft and high speed has advantages, but its thrust is limited due to the influence of diameter and cavitation, and sand is sucked in in shallow water, causing serious wear and tear; air propeller and jet propulsion solve the draft problem of the ship, but at low speed low efficiency

Images