Large-ship-used propeller with pitch adjustable
A propeller technology for ships, which is applied in the field of adjustable pitch propellers for large ships, can solve the problems of low propulsion efficiency, fixed-pitch propellers cannot adjust the blade working angle, and cannot meet the propulsion needs of large ships, etc., to achieve high propulsion efficiency, The effect of simple structure and low cost
Inactive Publication Date: 2015-11-11
SUZHOU JINYE MARINE MACHINERY PLANT
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- Description
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Problems solved by technology
At present, the commonly used type of ship propeller is the fixed-pitch propeller. The fixed-pitch propeller cannot adjust the working angle of the blade according to the different working conditions of the ship. Its propulsion efficiency is not high and cannot meet the propulsion needs of large ships.
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[0010] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so that the protection scope of the present invention can be more clearly defined.
[0011] See figure 1 , The embodiment of the present invention includes:
[0012] A controllable pitch propeller for large ships, comprising: a propeller hub 1, a propeller blade 2, a connecting nut, the circumference of the propeller hub is provided with 1-4 mounting holes, and the propeller blades have 1-4 , The blade 2 is movably installed in the mounting hole groove on the hub 1 through the connecting nut, the inner cavity of the hub 1 is installed with a power mechanism that can drive the blade to rotate, and the blade The lower end of the blade 2 extends into the inner cavity of the hub 1 to contact the output shaft of the power mechanism...
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The invention discloses a large-ship-used propeller with the pitch adjustable. The propeller comprises a propeller hub, 1-4 propeller blades and connecting nuts, 1-4 mounting holes are formed in the circumferential edge of the propeller hub, the propeller blades are movably installed in the mounting holes in the propeller hub through the connecting nuts, a power mechanism capable of driving the propeller blades to rotate is installed in a cavity of the propeller hub, and the lower end of each propeller blade extends into the cavity of the propeller hub and is in contact with an output shaft of the power mechanism. Through the mode, the large-ship-used propeller is simple in structure, capable of adjusting the operating angles of the propeller blades according to different working conditions of a ship, high in propelling efficiency and capable of satisfying propelling requirements of the large ship.
Description
Technical field [0001] The invention relates to the field of propellers, in particular to a controllable pitch propeller for large ships. Background technique [0002] The marine propeller is a mechanism that pushes the ship forward. The propeller is installed below the waterline of the stern and rotates by the main engine of the ship. After pushing the water to the ship, it uses the reaction force of the water to push the ship forward. At present, the commonly used type of ship propeller is fixed pitch propeller. The fixed pitch propeller cannot adjust the working angle of the blades according to the different working conditions of the ship. Its propulsion efficiency is not high and cannot meet the propulsion requirements of large ships. Summary of the invention [0003] The main technical problem solved by the present invention is: in view of the shortcomings of the prior art, a variable pitch propeller for large ships is provided, which has a simple structure, can adjust the wo...
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IPC IPC(8): B63H3/00
Inventor 汤建明
Owner SUZHOU JINYE MARINE MACHINERY PLANT