CN216102723U

CN216102723U - Novel high efficiency rim formula propeller

Info

Publication number: CN216102723U
Application number: CN202122155569.3U
Authority: CN
Inventors: 贾俊国; 宋锦海; 肖超云; 聂道汶; 何林
Original assignee: State Grid Commercial Electric Vehicle Investment Co ltd; State Grid Smart Energy Traffic Technology Innovation Center Suzhou Co ltd
Current assignee: State Grid Commercial Electric Vehicle Investment Co ltd; State Grid Smart Energy Traffic Technology Innovation Center Suzhou Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-03-22
Anticipated expiration: 2031-09-07

Abstract

The utility model discloses a novel high-efficiency rim type propeller which comprises a hub and a plurality of blade blades, wherein one end of each blade is uniformly arranged on the inner surface of the hub, the other end of each blade is uniformly arranged on the hub, the blade root area of each blade is smaller than the blade tip area, a variable-pitch screw is adopted, the hub is arranged on the outer ring of a propeller shaft through a water lubrication bearing, the inner wall of the hub is also provided with a wear-resistant material layer, a plurality of water grooves are uniformly formed in the wear-resistant material layer, and the two ends of the hub are respectively provided with a convex part and a concave part.

Description

Novel high efficiency rim formula propeller

Technical Field

The utility model relates to the field of marine hydrodynamic force, in particular to a novel high-efficiency rim type propeller.

Background

The ship needs power when operating on water, at present, the power that the ship operation needs is provided by the screw, and the screw refers to leans on the paddle to rotate in aqueous, turns into the device of propulsive force with rim formula propeller motor rotation power. The existing propeller has the following disadvantages:

1. the traditional propeller shaft transmits power through a ball bearing, and the ball bearing has short service life, is easy to rust when water enters, causes the bearing to be unsmooth, ensures that the propeller shaft is easy to block, is not silent in the using process and is inconvenient to maintain and replace;

2. the blade thrust of the traditional propeller is small, so that the propulsion efficiency is low;

3. the bearings of the conventional propeller are seized due to high temperature generated by friction.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide the novel high-efficiency rim type propeller of the novel high-efficiency rim type propeller, which has the advantages of simple structure, long service life, silence, no rust and the like, and can effectively improve the propelling efficiency and the use safety.

In order to achieve the above purposes, the utility model adopts the technical scheme that: the utility model provides a novel high efficiency rim formula propeller, includes wheel hub and a plurality of paddle blade, a plurality of paddle blade one end evenly sets up on wheel hub's internal surface, and the other end evenly sets up on the propeller hub, the blade root area of paddle blade is less than the blade tip area, and adopts the spiral of variable pitch formula, the outer lane at the propeller shaft is installed through the water lubricated bearing to the propeller hub, the propeller hub inner wall still is equipped with the wearing layer, a plurality of basins have evenly been seted up on the wearing layer, the wheel hub both ends are provided with bellying and depressed part respectively.

Further, the number of the paddle blades is four.

Further, the back surface of the blade is a helicoid.

Furthermore, a circle of screw holes are uniformly formed in the hub.

Further, the hub and the blade are of an integrally formed structure.

Furthermore, the hub and the blade are made of stainless steel.

Compared with the prior art, the utility model has the beneficial effects that:

1. by adopting the water-lubricated bearing and arranging the wear-resistant material, the effects of long service life, silence and no rust are achieved;

2. the blade is a variable-pitch screw, the efficiency is effectively improved through the structure that the middle of the blade is thick and the edges of the blade are thin, and meanwhile, the area of the blade tip of the blade is increased, so that the area of the blade root of the blade is smaller than that of the blade tip, and the effects of high linear speed and larger thrust generated by a unit area unit are achieved, and higher propelling efficiency is obtained;

3. through setting up wheel hub both ends respectively to protruding structure and sunk structure, play and block that little object gets into, protect internals's effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a blade;

FIG. 3 is a schematic structural view of a blade;

FIG. 4 is a schematic structural view of the hub;

fig. 5 is a schematic structural view of the hub.

In the figure:

1-a blade; 2-a hub; 3-a hub; 4-a layer of wear resistant material; 5-a water tank; 6-screw holes; 7-a boss; 8-a recess.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.

Referring to the attached drawing 1, the novel high-efficiency rim type propeller comprises a hub 2 and four paddle blades 1, wherein the hub 2 and the paddle blades 1 are of an integrally formed structure and are made of stainless steel, the integrally formed structure is adopted for casting, and the strength and the stress analysis as well as the service life of the paddle are better than those of a welded type propeller;

one ends of the four blade blades 1 are uniformly arranged on the inner surface of the hub 2, and the other ends of the four blade blades are uniformly arranged on the hub 3, so that the overall strength can be increased due to uniform distribution;

referring to the attached

drawings

2 and 3, the blade root area of the blade 1 is smaller than the blade tip area, and as the blade tip area is large, the linear velocity is high, and the thrust generated by a unit area unit is larger, the propulsion efficiency higher than that of the traditional propeller can be obtained by adopting the design;

the paddle blades 1 adopt variable-pitch screws, the variable-pitch screws are thick in the middle and thin at the edges of two ends, the efficiency can be improved, the back surfaces of the paddle blades 1 are spiral surfaces, and the diameters of the screws are 1700 mm;

referring to the attached drawing 4, a propeller hub 3 is arranged on the outer ring of a propeller shaft through a water lubrication bearing, a wear-resistant material layer 4 is further arranged on the inner wall of the propeller hub 3, a plurality of water grooves 5 are uniformly formed in the wear-resistant material layer 4, so that the water lubrication effect is enhanced, the mute effect can be achieved during use, the wear-resistant material is not rusted and has long service life, and the bearing temperature is basically equal to the water temperature due to the adoption of the water lubrication bearing, so that the shaft cannot be clamped due to high temperature generated by friction;

referring to fig. 5, the two ends of the hub 2 are respectively provided with the convex part 7 and the concave part 8, which is beneficial to smooth flow of water and can block small objects from entering, thereby protecting other parts and improving the overall safety;

referring to the attached drawing 1, a circle of screw holes 6 are uniformly formed in the hub 2 and used for being assembled with other parts, and the hub can be used for hoisting before being assembled, so that the mounting convenience is improved.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a novel high efficiency rim formula propeller, includes wheel hub (2) and a plurality of paddle blade (1), a plurality of paddle blade (1) one end evenly sets up on wheel hub's (2) internal surface, and the other end evenly sets up on propeller hub (3), its characterized in that: the blade comprises a blade hub (3), a wear-resistant material layer (4) is further arranged on the inner wall of the blade hub (3), a plurality of water grooves (5) are uniformly formed in the wear-resistant material layer (4), and a protruding portion (7) and a recessed portion (8) are respectively arranged at two ends of the blade hub (2).

2. A novel high efficiency rim propeller as defined in claim 1, wherein: the number of the blade blades (1) is four.

3. A novel high efficiency rim propeller as defined in claim 2, wherein: the back surface of the blade (1) is a helicoid.

4. A novel high efficiency rim propeller as defined in claim 1, wherein: a circle of screw holes (6) are uniformly formed in the hub (2).

5. A novel high efficiency rim propeller as defined in claim 1, wherein: the hub (2) and the blade (1) are of an integrally formed structure.

6. The new and improved rim propeller as defined in claim 5, wherein: the hub (2) and the blade (1) are made of stainless steel.