Separable marine ducted propeller
A ducted propeller and propeller technology, which is applied in ship propulsion, ship parts, ship construction, etc., can solve the problems of winding propeller blades, increasing the turning radius of ships, and poor propeller performance, so as to increase propeller thrust, improve propeller efficiency, and improve The effect of maneuverability
Inactive Publication Date: 2019-09-27
HARBIN ENG UNIV
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Problems solved by technology
However, ducted propellers also have their disadvantages, such as increasing the radius of gyration of the ship, deteriorating maneuverability, and poor performance of the propeller when the ship is sailing backwards. The gap is stuck, or the blade is entangled, which affects the work and sometimes has to be stopped for processing
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[0012] The present invention is described in more detail below in conjunction with accompanying drawing example:
[0013] to combine Figure 1-2 , The separable marine ducted propeller proposed by the present invention is composed of a propeller 1, a duct 2, a duct rod 3, an adjustment mechanism 4, a propeller shaft 5, and the like. The propeller 1 and the duct 2 can be combined or separated by moving the propeller duct 2 horizontally. When the propeller 1 and the duct 2 are in a combined state, such as figure 1 As shown, the propeller at this time is the same as the ducted and ordinary fixed ducted propeller. When the propeller 1 is separated from the duct 2, as figure 2 As shown, the duct 2 moves horizontally to the back side of the propeller 1 (close to the hull side) at a certain distance, and the propeller at this time is the same as the common propeller without duct. The separation and combination of propeller 1 and duct 2 are regulated by regulating mechanism 4 . ...
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The invention provides a separable marine ducted propeller and aims to overcome defects in the prior art. The separable marine ducted propeller comprises a propeller, a propeller shaft, a duct, a duct rod and a regulating mechanism, wherein the propeller is connected with the propeller shaft; the duct is connected with the duct rod; the regulating mechanism is fixed in a ship body, connected with the duct rod, and capable of pushing the duct rod and then pushing the duct to horizontally move; and the position of the propeller is matched with the duct. The separable marine ducted propeller provided by the invention can be combined or separated according to the working conditions; when the load of the propeller is relatively heavy, the duct and the propeller can be in the combined state, the thrust of the propeller can be increased, and the efficiency of the propeller can be improved; when a ship moves back or turns, the duct can be separated, thereby improving the maneuverability of the ship and the performance of the propeller during the moving-back process; and when the normal operation of the propeller is influenced because water plants, debris and the like are caught in the duct, stuck between the tip of a blade of the propeller and the duct, or wound around the blade, the propeller and the duct can be separated, thereby ensuring that the debris can automatically fall of or can be conveniently cleared.
Description
technical field [0001] The present invention relates to a propeller, specifically a ducted propeller. Background technique [0002] The ducted propeller is formed by adding an annular duct to the periphery of the propeller, and the section of the duct is airfoil or chamfered. Ducts can improve the efficiency of heavy-duty propellers, so they are widely used on ships with heavy propeller loads. With the development of large-scale and high-power ships, the load on propellers is increasing. Ducted propellers can not only improve propulsion efficiency, but also help reduce vibration. However, the ducted propeller also has its disadvantages, such as increasing the radius of gyration of the ship, deteriorating maneuverability, and poor performance of the propeller when the ship is sailing backwards. The gap is stuck, or the blades are entangled, which affects the work and sometimes has to be stopped for processing. Contents of the invention [0003] The object of the present ...
Claims
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IPC IPC(8): B63H5/14B63H5/16
CPCB63H5/14B63H5/165
Inventor 丁宇随从标徐家润卢贤续任慧琳刘国政
Owner HARBIN ENG UNIV