a ship propeller

Abstract

The invention discloses a ship propeller, and relates to the technical field of ship power devices. The ship propeller comprises a driving part, two propulsion assemblies which are symmetrical in structure and a clamping assembly which is used for supporting the propulsion assemblies and connected with the side edge of a ship body. A supporting frame connected with the inner bottom face of the ship body is installed in the middle of the driving part through a bearing. The adjacent end of the driving part and the adjacent ends of the propulsion assemblies are in transmission through a power connection control assembly; the driving part comprises a main shaft rod; two crankshaft parts are arranged on the main shaft rod in a central symmetry manner; first spline connecting holes are symmetrically formed in two ends of the main shaft rod; and the main shaft rod between the two crankshaft parts is rotationally connected with the supporting frame through a bearing. Through the cooperative use of the driving part, the propulsion assemblies, the clamping assembly, the supporting frame and the power connection control assembly, the ship propeller is installed on an unpowered ship, the overall structure is reasonable and simple, and the labor intensity of people is reduced.

Description

technical field [0001] The invention belongs to the technical field of ship power devices, in particular to a ship propeller. Background technique [0002] Existing ship propellers are divided into paddle wheels, propellers, straight wings (horizontal rotation), water jets, half-rotating blades and bionic propellers. [0003] The paddle wheel propeller originated from the early steam-powered ships. It is a propeller installed on both sides or stern of the ship and only the lower half of the water enters the water; it is usually distinguished according to whether the fins mounted on the paddle wheel rotate. It is a fixed fin paddle wheel and a movable fin paddle wheel; the reaction force generated by its stroke pushes the ship forward. Some water entertainment tools, such as water bicycles, also use a simple and effective propulsion method similar to the paddle wheels with fixed fins. Since the paddle wheels of paddle steamers are mostly installed on the side and most of th...

AI Technical Summary

Problems solved by technology

Its disadvantages are: the water inlet pipe loses the effective volume in the ship; and in order to improve the water spray efficiency, most of the impellers (including the impeller of the water pump) have complex geometric shapes

Its disadvantage is that the kinematic mechanism of the blade is more complicated, and the propulsion generated is pulsating and will not be very large.

[0007] Nowadays, ships walking in small rivers are generally not equipped with power devices, and only rely on sculls or struts to move forward. The sculls need to be pulled back and forth manually. Changing sides, both the former and the latter require a lot of physical labor, so this application document provides a ship propeller installed on an unpowered ship to reduce human labor intensity

Images