Transversely symmetrical propeller for ship

Abstract

The invention discloses a transversely symmetrical propeller for a ship, and belongs to the field of ship propellers. The propeller comprises a box body which is installed at the tail of a hull, a drain outlet is formed in the tail of the box body, a transmission main shaft in the hull extends into the box body from front to back, circular holes at the corresponding positions are formed in the left side and the right side of the box body, a transverse cross shaft is arranged on a connecting line of the centers of circles of the two circular holes, the cross shaft comprises a driving shaft anda driven shaft which are connected through a clutch, a coaxial bevel gear is arranged on the driving shaft, the bevel gear of the driving shaft and a bevel gear of the transmission main shaft are perpendicularly meshed with each other, and the two propellers with the opposite helical directions are symmetrically installed at the two ends of the cross shaft. Accordingly, the prejudice in the priorart is broken through, another way is found, forwarding, reversing, left steering, right steering, left in-situ turning, right in-situ turning and other operations of the ship are achieved, the powerof the ship and the energy efficiency are effectively improved, and energy conservation and environmental friendliness are achieved.

Description

technical field [0001] The invention belongs to the field of ship propellers, in particular to a transverse symmetrical propeller for ships. Background technique [0002] Nowadays, ships in rivers, lakes and seas are propelled in a straight line by propellers. The propellers are located at the rear of the hull, and the blades of the propellers face backwards. The water at the rear of the ship is drained backwards, which will cause the ship to sink a little, the contact area between the hull and the water will increase, and the resistance of the water will also increase when moving forward; when the propeller reverses, the water at the rear will The forward row generates pulling force to move backward. Since the front of the propeller is the hull, the water in the forward row will impact the hull and cause power loss. [0003] The existing ship is controlled by the linear propeller and the rudder. When turning, the propeller needs to rotate forward or reverse, and then coope...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art, and propose a transversely symmetrical propeller for ships, which solves the problem of the traditional propeller draining backwards causing the depth of the stern to increase and the resistance of the water to increase, and the problem of water flow impact caused by forward draining. The problem of loss of power caused by the hull, and the cancellation of the rudder, realizes turning in situ and turning while traveling, which improves the flexibility and safety of the ship

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