CN211810173U - Noise reduction type propeller device - Google Patents

Abstract

The utility model discloses a type of making an uproar screw device falls, include: the propeller comprises a propeller body, a protective cover body, a front cover plate and a rear cover plate; wherein, the protective cover body is the tubbiness, and the screw body sets up in the inner chamber of the protective cover body, and preceding uncovered and the uncovered lid in back of the protective cover body will be covered respectively to front shroud and back shroud, and the inside of the protective cover body still is provided with the board of making an uproar, and it is provided with a plurality of bloops to fall on the board of making an uproar. The noise reduction type propeller device overcomes the problem that when a propeller in the prior art rotates at a high speed, water forms steam due to the fact that the pressure of air on the surface of a blade is too small, and therefore cavitation is generated and is a main noise source of ships, and the experience of drivers is seriously influenced by noise.

Description

Noise reduction type propeller device

Technical Field

The utility model relates to a screw mechanism field specifically, relates to a type of making an uproar screw device falls.

Background

At present, a propeller is generally adopted as a propulsion device of a ship, the propeller is composed of a propeller hub and a propeller blade, the propeller is connected with an output shaft of a main engine through a stern shaft, the stern shaft is connected with a ship body through a bearing, a bearing seat and a sealing device, a ship stern shaft frame is arranged at the joint of the ship body corresponding to the propeller, and the stern shaft drives the propeller to rotate so as to drive the ship to sail.

When a propeller in the prior art rotates at a high speed, water forms steam due to the fact that the pressure of air on the surface of blades is too low, and therefore cavitation is generated, the propeller is a main noise source of ships, and the experience of drivers is seriously influenced by noise.

Therefore, the present invention provides a noise reduction propeller device capable of effectively controlling noise during use, and solves the problems of the present invention.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model aims at overcoming the screw among the prior art when high-speed rotatory, because paddle surface air pressure undersize makes water form the aqueous vapor to produce the vacuole phenomenon, be the main noise source of boats and ships, the noise seriously influences the problem of driver's experience, thereby provides one kind and can control the type of making an uproar screw device of falling of noise effectively in the use.

In order to achieve the above object, the utility model provides a type of making an uproar screw device falls, the type of making an uproar screw device falls includes: the propeller comprises a propeller body, a protective cover body, a front cover plate and a rear cover plate; wherein the content of the first and second substances,

the utility model discloses a propeller protection cover, including the protection cover body, the protection cover body is the tubbiness, the screw body sets up in the inner chamber of the protection cover body, the front shroud with the back shroud will the preceding uncovered of the protection cover body covers respectively with uncovered after with and closes, the inside of the protection cover body still is provided with the board of making an uproar, it is provided with a plurality of bloops to make an uproar on the board to make an uproar.

Preferably, the noise-reducing propeller device further comprises: a defoamer container and a spray head; the rear cover plate is provided with a plurality of spray heads on one side facing the propeller body, the spray heads are communicated with the defoaming agent container through a guide pipe, and a liquid pump is arranged between the defoaming agent container and the defoaming agent container.

Preferably, the front cover plate and the rear cover plate are both arc-shaped, and concave sides of the front cover plate and the rear cover plate face the propeller body respectively.

Preferably, the front cover plate is connected with the protection cover body in a snap-in manner;

the rear cover plate is connected with the protection cover body in a buckling mode.

Preferably, the shower nozzle is arc form, and the concave side of shower nozzle is towards the screw body, just the concave side is provided with a plurality of spray holes uniformly.

Preferably, the propeller body is further provided with a sound wave driver.

According to the technical scheme, the utility model provides a type of making an uproar screw device falls beneficial effect when using does: the protective cover body, the front cover plate and the rear cover plate are combined to form a containing cavity, the propeller body is arranged in the containing cavity, and the propeller body can be protected under the condition that normal work is not influenced, so that on one hand, the propeller body can be prevented from being wound by sundries; on the other hand, the propeller can prevent organisms such as fishes from colliding with the propeller body to cause damage to the propeller body and further influence the ecological balance in the water area. The noise reduction plate in the protective cover body does not influence the normal work of the propeller body, and can effectively absorb part of noise, so that the noise reduction effect is achieved.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of an internal structure of a noise reduction type propeller device according to a preferred embodiment of the present invention;

fig. 2 is a schematic structural view of a protective cover body of a noise reduction type propeller device according to a preferred embodiment of the present invention.

Description of the reference numerals

1 Propeller body 2 front cover plate

3 protective cover body 4 spray head

5 honeycomb duct 6 back shroud

7 inner cavity 8 noise reduction plate

9 defoaming agent container 10 liquid pump

11 sound wave driving device

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise specified, the terms of orientation such as "upper, lower, inner, outer" and the like included in the terms only represent the orientation of the terms in a conventional use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.

As shown in fig. 1 and 2, the utility model provides a type of making an uproar screw device falls, the type of making an uproar screw device falls includes: the propeller comprises a propeller body 1, a protective cover body 3, a front cover plate 2 and a rear cover plate 6; the propeller is characterized in that the protective cover body 3 is barrel-shaped, the propeller body 1 is arranged in an inner cavity 7 of the protective cover body 3, the front cover plate 2 and the rear cover plate 6 cover a front opening and a rear opening of the protective cover body 3 respectively, a noise reduction plate 8 is further arranged inside the protective cover body 3, and a plurality of noise reduction holes are formed in the noise reduction plate 8.

According to the technical scheme, the utility model provides a type of making an uproar screw device falls beneficial effect when using does: the protective cover body 3, the front cover plate 2 and the rear cover plate 6 are combined to form a containing cavity, the propeller body 1 is arranged in the containing cavity, the propeller body 1 can be protected under the condition that normal work is not influenced, and on one hand, sundries can be prevented from being wound on the propeller body 1; on the other hand, the propeller body 1 can be prevented from being damaged due to collision of organisms such as fishes and the like with the propeller body 1, and the ecological balance in the water area is also influenced. The noise reduction plate 8 in the protective cover body 3 does not affect the normal work of the propeller body 1, and can effectively absorb part of noise, thereby achieving the effect of noise reduction.

In a preferred embodiment of the present invention, the noise reduction type propeller device further includes: a defoaming agent container 9 and a spray head 4; the rear cover plate 6 is provided with a plurality of spray heads 4 on one side facing the propeller body 1, the spray heads 4 are communicated with the defoaming agent container 9 filled with defoaming agent through the guide pipe 5, and a liquid pump 10 is arranged between the defoaming agent container 9 and the defoaming agent container.

In the above scheme, the defoaming agent in the defoaming agent container 9 is extracted by the defoaming agent container 9, enters the flow guide pipe 5, and is finally sprayed to the water area around the propeller body 1 through the spray head 4, so as to achieve the defoaming effect, and the cavitation phenomenon is the main noise source of the ship, so that the structure can indirectly reduce the noise generated when the propeller body works.

In a preferred embodiment of the present invention, the front cover plate 2 and the rear cover plate 6 are both arc-shaped, and the concave sides of the front cover plate and the rear cover plate face the propeller body 1 respectively.

In the above scheme, the front cover plate 2 and the rear cover plate 6 of the structure can reduce the resistance with water flow, so that the driving force normally generated by the propeller body cannot be influenced, the protective cover body is barrel-shaped, and the contact area between the moving direction and the water flow is small, so that too much energy loss cannot be caused. The cavity formed by the protective cover body, the front cover plate and the rear cover plate can not cause excessive energy loss under the condition of protecting the propeller body 1.

In a preferred embodiment of the present invention, the front cover plate 2 is connected to the protective cover 3 in a snap-fit manner; the rear cover plate 6 is connected with the protective cover body 3 in a buckling mode.

In the above scheme, the front cover plate 2 and the rear cover plate 6 are conveniently disassembled in a buckle type connection mode.

In a preferred embodiment of the present invention, the nozzle 4 is arc-shaped, and the concave side of the nozzle 4 faces the propeller body 1, and the concave side is uniformly provided with a plurality of spraying holes.

In the above scheme, the structure of the nozzle 4 is beneficial to uniformly spraying the defoaming agent to the water area near the propeller body 1, so as to achieve the purpose of defoaming.

In a preferred embodiment of the present invention, the propeller body 1 is further provided with a sound wave driver 11.

In the above scheme, the sound wave driver 11 can generate sound waves to drive fishes in a nearby water area, so as to prevent the fishes from colliding with the propeller body 1 to cause damage to the propeller body 1 and death of the fishes.

The utility model provides a fall type of making an uproar screw device overcomes screw among the prior art when high-speed rotatory, because paddle surface air pressure undersize makes water form the aqueous vapor to produce the vacuole phenomenon, be the main noise source of boats and ships, the noise seriously influences the problem of driver's experience.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims (6)

1. A noise-reducing propeller device, comprising: the propeller comprises a propeller body (1), a protective cover body (3), a front cover plate (2) and a rear cover plate (6); wherein the content of the first and second substances,

the utility model discloses a propeller protection cover, including the protection cover body (3), screw body (1) sets up in inner chamber (7) of the protection cover body (3), front shroud (2) with back shroud (6) will the preceding uncovered of the protection cover body (3) covers respectively with the uncovered after and closes, the inside of the protection cover body (3) still is provided with and falls board (8) of making an uproar, it is provided with a plurality of bloops to fall on board (8) of making an uproar to fall.

2. The noise reducing propeller device of claim 1, further comprising: a defoaming agent container (9) and a spray head (4); the rear cover plate (6) is provided with a plurality of spray heads (4) on one side facing the propeller body (1), the spray heads (4) are communicated with the defoaming agent container (9) filled with defoaming agent through the guide pipe (5), and a liquid pump (10) is arranged between the defoaming agent container (9) and the defoaming agent container.

3. The noise reducing propeller arrangement according to claim 1, wherein the front cover plate (2) and the rear cover plate (6) are both arc-shaped with their concave sides facing the propeller body (1), respectively.

4. The noise reducing propeller device of claim 3,

the front cover plate (2) is connected with the protective cover body (3) in a buckling manner;

the rear cover plate (6) is connected with the protective cover body (3) in a buckling mode.

5. The noise-reducing propeller device according to claim 2, wherein the nozzle head (4) is arc-shaped, and a concave side of the nozzle head (4) faces the propeller body (1), and the concave side is uniformly provided with a plurality of spray holes.

6. The noise reducing propeller arrangement according to claim 1, wherein a sound wave expeller (11) is further arranged on the propeller body (1).

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