CN210212735U

CN210212735U - Separable marine ducted propeller

Info

Publication number: CN210212735U
Application number: CN201921023161.7U
Authority: CN
Inventors: Yu Ding; 丁宇; Congbiao Sui; 随从标; Jiarun Xu; 徐家润; Xianxu Lu; 卢贤续; Huilin Ren; 任慧琳; Guozheng Liu; 刘国政
Original assignee: Harbin Engineering University
Current assignee: Harbin Engineering University
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-03-31
Anticipated expiration: 2029-07-02

Abstract

An object of the utility model is to provide a marine pipe screw of detachable, including screw, propeller shaft, pipe pole, adjustment mechanism, the propeller shaft is connected to the screw, pipe connection pipe pole, and adjustment mechanism fixes in the hull, and adjustment mechanism connects the pipe pole to promote the pipe pole and then promote the pipe and do horizontal migration, the position and the pipe of screw cooperate. The utility model discloses can fold up or separate according to operating mode needs, when the screw load is heavier, the pipe is in the multiplicable screw thrust of combined state with the screw and improves screw efficiency. The guide pipe can be separated when the ship sails backwards and turns, and the maneuvering performance of the ship and the performance of the propeller during sailing backwards are improved. When waterweeds, sundries and the like are drawn into the guide pipe and clamped between the blade tips of the propeller and the guide pipe or the propeller is wound by the blades to influence the normal work of the propeller, the propeller guide pipe can be separated so that the sundries can fall off automatically or be cleaned conveniently.

Description

Separable marine ducted propeller

Technical Field

The utility model relates to a screw, specifically speaking are ducted screw.

Background

The ducted propeller is formed by adding an annular duct at the periphery of the propeller, and the section of the duct is in a wing shape or a broken-angle line shape. The guide pipe can improve the efficiency of the heavy-load propeller, so the guide pipe is widely applied to ships with heavier propeller loads. With the development of large-scale and high-power ships, the load of the propeller is larger and larger, and the ducted propeller not only can improve the propelling efficiency, but also is beneficial to reducing vibration. However, the ducted propeller has disadvantages such as an increase in the turning radius of the ship, deterioration in the handling performance, poor performance of the propeller when the ship sails backwards, and the like, and particularly, when waterweeds and impurities are drawn into the ducted propeller, the waterweeds and the impurities are easily stuck in the gap between the blade tip and the ducted propeller or wind the blades, which affects the operation, so that the ship sometimes has to be stopped for disposal.

Disclosure of Invention

The utility model aims to provide a detachable marine ducted propeller which can not only keep the advantages of the ducted propeller, but also avoid the main defects.

The purpose of the utility model is realized like this:

the utility model relates to a marine ducted propeller of detachable, characterized by: the ship comprises a propeller, a propeller shaft, a guide pipe rod and an adjusting mechanism, wherein the propeller is connected with the propeller shaft, the guide pipe is connected with the guide pipe rod, the adjusting mechanism is fixed in a ship body, the adjusting mechanism is connected with the guide pipe rod and pushes the guide pipe rod to further push the guide pipe to move horizontally, and the position of the propeller is matched with the guide pipe.

The utility model discloses can also include:

1. when the ship is in a heavy-load sailing working condition, the propeller and the guide pipe are in a combined state under the action of the adjusting mechanism; when the ship is in light-load navigation or sundries wound on the blades are cleaned, the propeller and the guide pipe are in a separated state under the action of the adjusting mechanism, and the guide pipe is horizontally moved to the back side of the propeller under the driving of the adjusting mechanism in the separated state.

2. The adjusting mechanism is a horizontal driving mechanism with a mechanical structure, an electric structure, a hydraulic structure or a combination of the mechanical structure and the electric structure.

The utility model has the advantages that: the utility model discloses can fold up or separate according to operating mode needs, when the screw load is heavier, the pipe is in the multiplicable screw thrust of combined state with the screw and improves screw efficiency. The guide pipe can be separated when the ship sails backwards and turns, and the maneuvering performance of the ship and the performance of the propeller during sailing backwards are improved. When waterweeds, sundries and the like are drawn into the guide pipe and clamped between the blade tips of the propeller and the guide pipe or the propeller is wound by the blades to influence the normal work of the propeller, the propeller guide pipe can be separated so that the sundries can fall off automatically or be cleaned conveniently.

Drawings

FIG. 1 is a schematic view of a combined state of a duct and a propeller;

fig. 2 is a schematic view of the state in which the duct and the propeller are separated.

Detailed Description

The invention will be described in more detail below by way of example with reference to the accompanying drawings:

with reference to fig. 1-2, the detachable marine ducted propeller of the present invention comprises a propeller 1, a duct 2, a duct rod 3, an adjusting mechanism 4, a propeller shaft 5, etc. The propeller 1 and the duct 2 can be combined or separated by moving the propeller duct 2 horizontally. The propeller 1 is shown in fig. 1 in combination with the duct 2, in which case the propeller is identical to the duct and to a conventional fixed ducted propeller. When the propeller 1 is separated from the duct 2 as shown in fig. 2, the duct 2 is horizontally moved to a position at a distance from the back side (the side close to the hull) of the propeller 1, which is the same as a conventional propeller without a duct. The separation and combination of the propeller 1 and the duct 2 is adjusted by an adjusting mechanism 4. The adjusting mechanism 4 may be a mechanical structure, an electrical structure, a hydraulic structure, or a combination thereof. The adjusting mechanism 4 is located in the hull above the propeller. The propeller shaft 2 is fixedly connected to the shaft 3 so that the propeller shaft 2 can move horizontally with the shaft 3. The duct rod 3 can be driven and moved horizontally by the adjusting mechanism 4, mechanically, electrically, hydraulically or a combination thereof, so that the duct 2 is driven to move horizontally as well to achieve the combination and separation of the propeller 1 and the duct 2.

According to different sailing conditions of the ship, the propeller 1 and the guide pipe 2 are combined and separated through the adjusting mechanism 4. When the ship is under heavy-load sailing conditions, such as increased draft or sailing in heavy waves and shallow channels, the propeller 1 and the guide pipe 2 are in a combined state and work normally. The propeller 1 and the duct 2 in a combined state have the same working effect as a common fixed duct propeller, can increase the thrust of the propeller under a heavy-load working condition, and improve the efficiency of the propeller. The duct 2 may be detached from the propeller 1 when the vessel is sailing lightly, such as when the vessel has a reduced draft or is sailing on a calm sea. When the propeller 1 and the duct 2 are changed from the combined state to the separated state, the duct 2 is horizontally moved to a position at a certain distance from the back side (the side close to the hull) of the propeller 1 under the driving of the adjusting mechanism 4. The propeller 1 and the guide pipe 2 in the separated state have the same working effect as the common propeller without the guide pipe, and the propeller efficiency under the light load working condition can be improved. When the ship is sailed backwards, the propeller 1 and the guide pipe 2 are separated, so that the performance of the propeller can be improved when the ship is sailed backwards. In addition, when waterweeds, sundries and the like are drawn into the guide pipe and clamped between the blade tip of the propeller and the guide pipe or wound around the blades to influence the normal work of the propeller, the propeller 1 and the guide pipe 2 can be separated so that the sundries can automatically fall off or be conveniently cleaned.

Claims

1. A detachable marine ducted propeller is characterized in that: the ship comprises a propeller, a propeller shaft, a guide pipe rod and an adjusting mechanism, wherein the propeller is connected with the propeller shaft, the guide pipe is connected with the guide pipe rod, the adjusting mechanism is fixed in a ship body, the adjusting mechanism is connected with the guide pipe rod and pushes the guide pipe rod to further push the guide pipe to move horizontally, and the position of the propeller is matched with the guide pipe.

2. The detachable marine ducted propeller as set forth in claim 1, wherein: when the ship is in a heavy-load sailing working condition, the propeller and the guide pipe are in a combined state under the action of the adjusting mechanism; when the ship is in light-load navigation or sundries wound on the blades are cleaned, the propeller and the guide pipe are in a separated state under the action of the adjusting mechanism, and the guide pipe is horizontally moved to the back side of the propeller under the driving of the adjusting mechanism in the separated state.

3. A detachable marine ducted propeller as claimed in claim 1 or claim 2, wherein: the adjusting mechanism is a horizontal driving mechanism with a mechanical structure, an electric structure, a hydraulic structure or a combination of the mechanical structure and the electric structure.