Improved structure of propeller

Abstract

The invention discloses an improved structure of a propeller. The improved structure of the propeller comprises a ship bottom, a propeller and a stern rudder, wherein the propeller and the stern rudder are both positioned at the ship bottom; the stern rudder is positioned at the rear part of the propeller; a foreign matter preventing structure is connected below the propeller; the foreign matter preventing structure comprises a foreign matter preventing stopping rod and a connection reinforcing plate; one end of the foreign matter preventing stopping rod is connected with a ship body at the bottom of a main shaft of the propeller; the other end of the foreign matter preventing stopping rod is rotatably connected with the bottom of the stern rudder; one section of diagonal rod is molded at the middle part of the foreign matter preventing stopping rod; and the foreign matter preventing stopping rod is also connected with the main shaft of the propeller through the connection reinforcing plate. Through the improvement on the structure, the foreign matter preventing structure is simplified; as foreign matters mainly enter the propeller from the lower part of the ship, the foreign matter preventing structure is mainly arranged at the lower part of the ship body so that the water resistance ratio is reduced; and as blades of the propeller can be in full contact with the water, the thrust force of the propeller is increased and the influence of the foreign matter preventing structure on water flow is reduced.

Description

technical field [0001] The invention relates to an improved drive structure of a ship, in particular to an improved screw propeller structure. Background technique [0002] The driving parts of the propeller boat at the bottom of the ship have been submerged in the water to drive the boat forward, because there are many debris in the water, and aquatic plants and other objects in the water will be entangled on the propeller, causing damage to the propeller. The common debris prevention device is on the propeller. The surrounding area is covered with a cage-like structure, but the structure has a high water resistance rate, which affects the normal flow of water, so the propeller cannot provide enough power. Contents of the invention [0003] To address the deficiencies in the prior art, a device for reducing water resistance is needed. [0004] In order to realize above-mentioned technical scheme, the present invention needs a kind of propeller improved structure, com...

AI Technical Summary

Problems solved by technology

[0002] The driving parts of the propeller boat at the bottom of the boat have been submerged in the water to drive the boat forward. Because there are many debris in the water, aquatic plants and other objects in the water will be entangled on the propeller, causing damage to the propeller. The common anti-clutter device is on the propeller. The surrounding area is covered with a cage-like structure, but the structure has a high water resistance rate, which affects the normal flow of water, so the propeller cannot provide enough power.

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