CN215475669U

CN215475669U - Propeller convenient to brake

Info

Publication number: CN215475669U
Application number: CN202121605403.0U
Authority: CN
Inventors: 傅志冬; 王佳泉; 刘跃文; 姜英德
Original assignee: Delisheng Qingdao Intelligent Manufacturing Co ltd
Current assignee: Delisheng Qingdao Intelligent Manufacturing Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-01-11
Anticipated expiration: 2031-07-14

Abstract

The utility model belongs to the technical field of propellers, and particularly relates to a propeller convenient to brake, which comprises a propeller hub and three blades, wherein the three blades are circularly distributed outside the propeller hub, each blade comprises an inner edge and a blade which are fixedly connected together, the inner edge and the propeller hub are fixedly connected together, each blade comprises a low-pressure surface and a high-pressure surface, each high-pressure surface comprises a front edge and a high-pressure surface, a protruding mechanism is fixedly arranged on one side of each low-pressure surface, which is close to the rear edge, and an air cavity is arranged in the propeller hub. According to the utility model, the back structure of the propeller blades is changed, so that the resistance of the propeller on reverse rotation is increased, the reverse thrust of the propeller is increased, a large amount of bubbles are sprayed to the periphery of the propeller during braking, the bubbles form a rotating arc cyclone under the rotation of the propeller, the resistance of water to the propeller blades during the rotation of the propeller blades can be reduced, the propeller rotates reversely, the rotating speed is increased, the braking effect is improved, and the ship is assisted to stop in a shorter time.

Description

Propeller convenient to brake

Technical Field

The utility model relates to the technical field of propellers, in particular to a propeller convenient to brake.

Background

The propeller brake means that the ship needs emergency speed reduction in a normal running state, and when the ship stops or stops, the propeller rotates reversely to produce reverse thrust, so that the ship is decelerated and stopped.

The propeller design in the usual case only focuses on forward thrust, i.e. propelling the ship forward, and does not add to the structure required for reverse thrust of the propeller. The ship stops at the present stage, the speed is reduced mainly through the self gravity of the ship and the weak reverse thrust of the propeller, and therefore the propeller convenient to brake is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a propeller convenient for braking and stopping so as to solve the problems in the background technology.

The embodiment of the application adopts the following technical scheme:

the utility model provides a screw convenient to stop, includes propeller hub and three paddle, and three paddle is the outside of circular distribution at the propeller hub, the paddle includes inner edge and the blade that fixed connection is in the same place, inner edge and propeller hub fixed connection are in the same place, the blade includes low-pressure side and high-pressure side, the high-pressure side contains leading edge and high-pressure side, one side fixed mounting who is close to the trailing edge on the low-pressure side has protruding mechanism, be equipped with the air cavity in the propeller hub, set up three venthole that is circular distribution on the propeller hub, three venthole all is linked together with the air cavity.

Preferably, the protruding mechanism includes the fixture block, there are first arc and second arc respectively fixed mounting in the both sides of fixture block, first arc is located one side that the fixture block is close to the trailing edge, the draw-in groove has been seted up to one side that the low pressure face is close to protruding mechanism, fixture block and draw-in groove interference fit are in the same place.

Preferably, two first seal grooves are formed in one side, close to the protruding mechanism, of the clamping groove, a second seal groove is formed in one side, close to the low-pressure surface, of each of the first arc-shaped plate and the second arc-shaped plate, and the corresponding first seal groove and the corresponding second seal groove are matched with one another through hard welding.

Preferably, a one-way valve is fixedly installed in the air outlet.

Preferably, an air inlet pipe is arranged in the air cavity, air outlet pipes are fixedly arranged in the three air outlet holes, and one ends of the three air outlet pipes, which are close to each other, are connected with the same four-way joint.

Preferably, the clamping block and the clamping groove are in a dove tail shape, and are in interference fit together.

Compared with the prior art, the utility model has the beneficial effects that: when the propeller braking device is used, a propeller is arranged on a ship engine through an air inlet pipe in an air cavity, the air inlet pipe is connected with an air pump, when the propeller is controlled to reversely rotate to enter a brake, air output by the air pump is discharged from three exhaust pipes through the air inlet pipe and then is discharged from three air outlet holes respectively, the air is sprayed into water to form a plurality of bubbles, the bubbles can form rotating arc-shaped cyclone under the rotation of the blades, the arc-shaped cyclone can reduce the resistance of water to the blades, so that the rotating speed of the blades is improved, the rotating speed of the paddle can be adjusted by controlling the air input, the resistance on the reverse rotation of the paddle can be increased by adding the convex mechanism, so that the reverse thrust of the paddle is increased, and then the boats and ships are assisted to stop in shorter time to increase protruding mechanism on the paddle, improved the resistance on the paddle counter-rotation, thereby increase the thrust of paddle, and then the boats and ships are assisted to stop in shorter time.

According to the utility model, the back structure of the propeller blades is changed, so that the resistance of the propeller on reverse rotation is increased, the reverse thrust of the propeller is increased, a large amount of bubbles are sprayed to the periphery of the propeller during braking, the bubbles form a rotating arc cyclone under the rotation of the propeller, the resistance of water to the propeller blades during the rotation of the propeller blades can be reduced, the propeller rotates reversely, the rotating speed is increased, the braking effect is improved, and the ship is assisted to stop in a shorter time.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

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

FIG. 2 is a schematic perspective view of a blade according to the present invention;

FIG. 3 is a partial cross-sectional structural view of portion A of FIG. 2;

FIG. 4 is a schematic view of the structure of the protrusion mechanism and the paddle in the present invention;

FIG. 5 is a schematic perspective view of a hub according to the present invention;

in the figure: 1. a hub; 101. an air cavity; 102. an air outlet; 2. a paddle; 201. an inner edge; 202. a blade; 20201. a card slot; 203. low-pressure noodles; 204. a leading edge; 205. a trailing edge; 206. a protrusion mechanism; 20601, fixture block; 20602. a first arc-shaped plate; 20603. a second arc-shaped plate; 207. high-pressure noodles.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Referring to fig. 1-5, a propeller convenient for stopping includes a hub 1 and three blades 2, the three blades 2 are circularly distributed outside the hub 1, the blades 2 include an inner edge 201 and a blade 202 fixedly connected together, the inner edge 201 and the hub 1 are fixedly connected together, the blade 202 includes a low pressure surface 203 and a high pressure surface 207, the high pressure surface 207 includes a front edge 204 and a high pressure surface 207, a protrusion mechanism 206 is fixedly installed on one side of the low pressure surface 203 near the rear edge 205, an air cavity 101 is arranged in the hub 1, three air outlet holes 102 are formed in the hub 1, and the three air outlet holes 102 are all communicated with the air cavity 101.

The during operation, through increasing protruding mechanism 206, can increase 2 reverse rotation of paddle resistance on, thereby increase 2 reverse thrust of paddle, and then stop in the auxiliary ship shorter time, and increase protruding mechanism 206 on paddle 2, paddle 2 reverse rotation's resistance has been improved, bubble through venthole 102 spun forms rotatory arc cyclone under paddle 2 rotates, the arc cyclone can reduce the resistance of water to paddle 2, make 2 rotational speeds of paddle improve, thereby increase paddle 2's reverse thrust, and then stop in the auxiliary ship shorter time.

The protrusion mechanism 206 comprises a clamping block 20601, a first arc-shaped plate 20602 and a second arc-shaped plate 20603 are respectively and fixedly mounted on two sides of the clamping block 20601, the first arc-shaped plate 20602 is located on one side, close to the rear edge 205, of the clamping block 20601, a clamping groove 20201 is formed in one side, close to the protrusion mechanism 206, of the low-pressure surface 203, and the clamping block 20601 and the clamping groove 20201 are in interference fit.

Two first seal grooves are formed in one side, close to the protrusion mechanism 206, of the clamping groove 20201, a second seal groove is formed in one sides, close to the low-pressure surface 203, of the first arc-shaped plate 20602 and the second arc-shaped plate 20603, and the same sealing strip is arranged in the corresponding first seal groove and the second seal groove in an over-hard matching mode.

A one-way valve is fixedly arranged in the air outlet hole 102.

An air inlet pipe is arranged in the air cavity 101, air outlet pipes are fixedly arranged in the three air outlet holes 102, and one ends of the three air outlet pipes, which are close to each other, are connected with the same four-way joint.

The clamping block 20601 and the clamping groove 20201 are in a dove tail shape, and the clamping block 20601 and the clamping groove 20201 are in interference fit together.

The working principle is as follows: can pass through the air inlet pipe in the air cavity 101, when in use, the propeller is installed on the ship engine, the air inlet pipe is connected with the air pump, when the propeller is controlled to reversely rotate to enter the brake, the air pump outputs air through the air inlet pipe and is discharged from the three exhaust pipes, and then is discharged from the three air outlet holes 102, the air is sprayed into water to form a plurality of bubbles, on one hand, the bubbles can form a rotating arc-shaped cyclone under the rotation of the blade 2, the resistance of the water to the blade 2 can be reduced by the arc-shaped cyclone, so that the rotating speed of the blade 2 is improved, the rotating speed of the blade 2 can be adjusted by controlling the air input, the resistance on the reverse rotation of the blade 2 can be increased by increasing the protrusion mechanism 206, so that the reverse thrust of the blade 2 is increased, and the ship is assisted to stop in a shorter time, and the protrusion mechanism 206 is added on the blade 2, so that the resistance on the reverse rotation of the blade 2 is improved, so that the reverse thrust of the blade 2 is increased, thereby assisting the vessel to stop in a shorter time.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A propeller convenient to brake includes propeller hub (1) and three paddle (2), its characterized in that: the three blades (2) are circularly distributed outside the propeller hub (1), the blades (2) comprise an inner edge (201) and blades (202) which are fixedly connected together, the inner edge (201) and the propeller hub (1) are fixedly connected together, the blades (202) comprise a low-pressure surface (203) and a high-pressure surface (207), the high-pressure surface (207) comprises a front edge (204) and the high-pressure surface (207), a protruding mechanism (206) is fixedly mounted on one side, close to the rear edge (205), of the low-pressure surface (203), an air cavity (101) is arranged in the propeller hub (1), three air outlet holes (102) which are circularly distributed are formed in the propeller hub (1), and the three air outlet holes (102) are communicated with the air cavity (101).

2. A propeller facilitating braking according to claim 1, wherein: the protrusion mechanism (206) comprises a clamping block (20601), a first arc-shaped plate (20602) and a second arc-shaped plate (20603) are fixedly mounted on two sides of the clamping block (20601) respectively, the first arc-shaped plate (20602) is located on one side, close to the rear edge (205), of the clamping block (20601), a clamping groove (20201) is formed in one side, close to the protrusion mechanism (206), of the low-pressure surface (203), and the clamping block (20601) and the clamping groove (20201) are in interference fit.

3. A propeller facilitating braking according to claim 2, wherein: two first seal grooves are formed in one side, close to the protrusion mechanism (206), of the clamping groove (20201), a second seal groove is formed in one side, close to the low-pressure surface (203), of the first arc-shaped plate (20602) and one side, close to the second arc-shaped plate (20603), of the second arc-shaped plate, and the corresponding first seal groove and the corresponding second seal groove are matched with one seal strip in an over-hard mode.

4. A propeller facilitating braking according to claim 1, wherein: a one-way valve is fixedly arranged in the air outlet (102).

5. A propeller facilitating braking according to claim 1, wherein: an air inlet pipe is arranged in the air cavity (101), air outlet pipes are fixedly arranged in the three air outlet holes (102), and one ends of the three air outlet pipes, which are close to each other, are connected with the same four-way joint.

6. A propeller facilitating braking according to claim 2, wherein: the clamping block (20601) and the clamping groove (20201) are in a dove tail shape, and the clamping block (20601) and the clamping groove (20201) are in interference fit together.