CN213928747U

CN213928747U - Roots blower silencer

Info

Publication number: CN213928747U
Application number: CN202022999002.XU
Authority: CN
Inventors: 华贤渊
Original assignee: Wuxi Ainuo Electromechanical Technology Co ltd
Current assignee: Wuxi Ainuo Electromechanical Technology Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-08-10
Anticipated expiration: 2030-12-14

Abstract

The application discloses roots's fan muffler, including amortization casing, amortization structure and weakening structure, the first flange of amortization casing one side rigid coupling, the amortization structure includes the cotton board of first amortization, the amortization chamber has been seted up to the amortization casing, be equipped with the cotton board of first amortization in the amortization chamber, the cotton board of amortization shells inner wall rigid coupling second amortization, the mounting opening has been seted up to the cotton board of second amortization. This application simple structure can carry out the amortization through the cotton board of first amortization and the cotton board isotructure of second amortization, makes the effect of amortization better, can cut down the vibrations that the air flow produced through buffer spring and buffering damping ring, reducing wear, the life of the silencer of being convenient for strengthen can filter the air current through filter screen isotructure, prevent the cotton board of second amortization adhesion dust, prevent that more dust from influencing the result of use of the cotton board of second amortization.

Description

Roots blower silencer

Technical Field

The application relates to a muffler, specifically roots's fan muffler.

Background

The Roots blower belongs to a positive displacement blower, and the end faces of an impeller and front and rear end covers of the blower. The principle is a rotary compressor which compresses and conveys gas by utilizing the relative motion of two blade-shaped rotors in a cylinder. The blower has simple structure and convenient manufacture, is widely applied to aquaculture oxygenation, sewage treatment aeration and cement conveying, is more suitable for a gas conveying and pressurizing system in a low-pressure occasion, can also be used as a vacuum pump and the like, is a device which enables airflow to smoothly pass through the device and effectively reduces noise, and can be divided into four types of resistance, composite type and exhaust emptying type according to the blockage of the form.

The muffler noise cancelling effect that present roots's fan used is relatively poor, and life is lower, needs the frequent maintenance to change, and the easy adhesion dust of amortization cotton that current roots's fan muffler used, and the influence is the cotton amortization function of amortization, the use of the muffler of not being convenient for. Accordingly, roots blower mufflers have been proposed to address the above problems.

Disclosure of Invention

The Roots blower silencer comprises a silencing shell, a silencing structure and a weakening structure, wherein one side of the silencing shell is fixedly connected with a first connecting flange;

the silencing structure comprises a first silencing cotton plate, the silencing shell is provided with a silencing cavity, the silencing cavity is internally provided with the first silencing cotton plate, the inner wall of the silencing shell is fixedly connected with a second silencing cotton plate, the second silencing cotton plate is provided with a mounting opening, the mounting opening is fixedly connected with a buffer spring, one end of the buffer spring is fixedly connected with a buffer damping ring, and the inner wall of the buffer damping ring is fixedly connected with a flow dividing pipe;

the weakening structure comprises a second connecting flange, the second connecting flange is arranged on one side of the first connecting flange and is connected with the first connecting flange through a connecting bolt, one side of the second connecting flange is fixedly connected with the weakening shell, the two ends of the weakening shell are fixedly connected with the second connecting flange, the inner wall of the weakening shell is fixedly connected with a filter screen, one side of the filter screen is provided with a fixed column, the fixed column is fixedly connected with the inner wall of the weakening shell, the surface of the fixed column is rotatably connected with a rotating plate, the surface of the rotating plate is fixedly connected with a mounting plate, the mounting plate is far away from the second connecting flange on one side of the first connecting flange, the second connecting flange is connected with a third connecting flange through a connecting bolt, and a honeycomb duct is fixedly connected with one side of the third connecting flange.

Furthermore, a plurality of installing ports which are uniformly distributed are formed in the second silencing cotton plate, and a plurality of buffer springs which are distributed in an annular array are fixedly connected to the outer surface of the buffer damping ring.

Furthermore, the inner wall of the silencing shell is fixedly connected with a plurality of second silencing cotton plates distributed at equal intervals, one end of the flow dividing pipe is fixedly connected with the circular truncated cone pipe, and the smaller end of the circular truncated cone pipe is fixedly connected with the flow dividing pipe.

Further, the amortization casing has all seted up the installation cavity with weakening the casing, just all be equipped with the cotton board of first amortization in the installation cavity, the equal rigid coupling in honeycomb duct both ends has third flange, the honeycomb duct is round platform shape structure just the one end that the honeycomb duct opening is big is located and is weakened casing one side.

Further, the rotating opening has been seted up to the rotor plate, fixed column one end runs through the rotating opening and extends to rotor plate one side, just the equal rigid coupling in weakening shells inner wall in fixed column both ends.

Further, the fixed column surface with rotate and be connected with a plurality of rotor plate, just rotor plate surface rigid coupling has a plurality of to be the mounting panel that the annular array distributes, just the equal rigid coupling in mounting panel both sides has the cotton board of third noise elimination.

The beneficial effect of this application is: the application provides roots's fan muffler.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic diagram of the overall internal structure of an embodiment of the present application;

FIG. 2 is a schematic overall side view of an embodiment of the present application;

FIG. 3 is a schematic top view of a weakened shell according to an embodiment of the present application;

fig. 4 is a schematic view of a portion a of fig. 1 according to an embodiment of the present disclosure.

In the figure: 1. the damping shell, 2, first connecting flange, 3, first silencing cotton board, 4, second silencing cotton board, 5, buffer spring, 6, buffer damping ring, 7, shunt tubes, 8, second connecting flange, 9, connecting bolts, 10, weakening shell, 11, filter screen, 12, fixed column, 13, rotating plate, 14, mounting plate, 15, third silencing cotton board, 16, third connecting flange, 17, honeycomb duct.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-4, the silencer of the roots blower comprises a silencing shell 1, a silencing structure and a weakening structure, wherein a first connecting flange 2 is fixedly connected to one side of the silencing shell 1;

the silencing structure comprises a first silencing cotton plate 3, a silencing cavity is formed in the silencing shell 1, the first silencing cotton plate 3 is arranged in the silencing cavity, the inner wall of the silencing shell 1 is fixedly connected with a second silencing cotton plate 4, an installation opening is formed in the second silencing cotton plate 4, a buffer spring 5 is fixedly connected at the installation opening, one end of the buffer spring 5 is fixedly connected with a buffer damping ring 6, and the inner wall of the buffer damping ring 6 is fixedly connected with a flow dividing pipe 7;

the weakening structure comprises a second connecting flange 8, the second connecting flange 8 is arranged on one side of a first connecting flange 2, the second connecting flange 8 and the first connecting flange 2 are connected through a connecting bolt 9, one side of the second connecting flange 8 is fixedly connected with a weakening shell 10, the two ends of the weakening shell 10 are fixedly connected with the second connecting flange 8, the inner wall of the weakening shell 10 is fixedly connected with a filter screen 11, one side of the filter screen 11 is provided with a fixed column 12, the fixed column 12 is fixedly connected with the inner wall of the weakening shell 10, the fixed column 12 is rotatably connected with a rotating plate 13 on the surface, the rotating plate 13 is fixedly connected with a mounting plate 14 on the surface, the second connecting flange 8 on one side of the first connecting flange 2 is connected with a third connecting flange 16 through a connecting bolt 9, and a guide pipe 17 is fixedly connected with one side of the third connecting flange 16.

The second silencing cotton plate 4 is provided with a plurality of uniformly distributed mounting ports, and the outer surface of the buffering damping ring 6 is fixedly connected with a plurality of buffering springs 5 distributed in an annular array; a plurality of second silencing cotton plates 4 which are distributed at equal intervals are fixedly connected to the inner wall of the silencing shell 1, one end of the flow dividing pipe 7 is fixedly connected with a circular truncated cone pipe, and the end with a smaller opening of the circular truncated cone pipe is fixedly connected with the flow dividing pipe 7; the silencing shell 1 and the weakening shell 10 are both provided with mounting cavities, first silencing cotton plates 3 are arranged in the mounting cavities, both ends of the flow guide pipe 17 are fixedly connected with third connecting flanges 16, the flow guide pipe 17 is of a circular truncated cone-shaped structure, and one end of the flow guide pipe 17 with a large opening is arranged on one side of the weakening shell 10; the rotating plate 13 is provided with a rotating opening, one end of the fixed column 12 penetrates through the rotating opening and extends to one side of the rotating plate 13, and two ends of the fixed column 12 are fixedly connected to the inner wall of the weakening shell 10; the fixed column 12 surface with rotate and be connected with a plurality of rotor plate 13, just rotor plate 13 surface rigid coupling has a plurality of to be the mounting panel 14 that the annular array distributes, just the equal rigid coupling in mounting panel 14 both sides has third cotton board 15 that disappears.

When the silencer is used, firstly, the silencing shell 1 and the guide pipe 17 are respectively arranged at two ends of the weakening shell 10 through the connecting bolt 9 and the fixing nut, the guide pipe 17 can increase the flowing diameter of the air flow, so that the air flow is dispersed to a certain degree, then the air flow pushes the mounting plate 14 to rotate, so that the rotating plate 13 is driven to rotate, so that part of the dispersed force of the air flow pushes the rotating plate 13, the mounting plate 14 and the third silencing cotton plate 15, so that the air flow is reduced to a certain degree, the air flow is conveniently silenced, the impact of the air flow on the filter screen 11 can be reduced, the abrasion of structures such as the filter screen 11 is reduced, the service life of the silencer is prolonged, then the air flow passes through the filter screen 11, the filter screen 11 can be used for filtering the air flow, the phenomenon that more dust adheres to structures such as the second silencing cotton plate 4 is avoided, and the use effect of the second silencing cotton plate 4 is prevented from being influenced by the dust, then can weaken casing 10 with the dismantlement through

second flange

8 and 9 isotructures of connecting bolt, thereby be convenient for change filter screen 11, then the air current shunts through shunt tubes 7, then utilize the cotton board of second amortization 4 and the cotton board 3 of first amortization to carry out the amortization, be convenient for carry out the amortization to the air current, simultaneously can cut down the vibration that the air current produced through shunt tubes 7 through buffering damping ring 6 and buffer spring 5, increase the life of muffler, strengthen roots's muffler's noise cancelling effect.

The application has the advantages that:

1. the silencer is simple in structure, air flow and the like can be divided through the structures such as the dividing pipe, silencing can be achieved through the structures such as the first silencing cotton plate and the second silencing cotton plate, the silencing effect is better, vibration generated by air flowing can be reduced through the buffer spring and the buffer damping ring, abrasion is reduced, and the service life of the silencer is prolonged conveniently;

2. this application is rational in infrastructure, can filter the air current through filter screen isotructure, prevents the adhesion dust on the cotton board of second amortization, prevents that more dust from influencing the result of use of the cotton board of second amortization, can cut down the air current through rotor plate and mounting panel isotructure, reduces the wearing and tearing of filter screen, increases the noise cancelling effect of muffler.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. Roots blower muffler, its characterized in that: the silencer comprises a silencing shell (1), a silencing structure and a weakening structure, wherein one side of the silencing shell (1) is fixedly connected with a first connecting flange (2);

the noise reduction structure comprises a first noise reduction cotton plate (3), a noise reduction cavity is formed in the noise reduction shell (1), the first noise reduction cotton plate (3) is arranged in the noise reduction cavity, a second noise reduction cotton plate (4) is fixedly connected to the inner wall of the noise reduction shell (1), a mounting opening is formed in the second noise reduction cotton plate (4), a buffer spring (5) is fixedly connected to the mounting opening, one end of the buffer spring (5) is fixedly connected with a buffer damping ring (6), and the inner wall of the buffer damping ring (6) is fixedly connected with a flow distribution pipe (7);

the weakening structure comprises a second connecting flange (8), the second connecting flange (8) is arranged on one side of a first connecting flange (2), the second connecting flange (8) is connected with the first connecting flange (2) through a connecting bolt (9), one side of the second connecting flange (8) is fixedly connected with a weakening shell (10), the two ends of the weakening shell (10) are fixedly connected with the second connecting flange (8), the inner wall of the weakening shell (10) is fixedly connected with a filter screen (11), one side of the filter screen (11) is provided with a fixed column (12), the fixed column (12) is fixedly connected with the inner wall of the weakening shell (10), the surface of the fixed column (12) is rotatably connected with a rotating plate (13), the surface of the rotating plate (13) is fixedly connected with a mounting plate (14), and the second connecting flange (8) far away from one side of the first connecting flange (2) is connected with a third connecting flange (16) through a connecting bolt (9), one side of the third connecting flange (16) is fixedly connected with a draft tube (17).

2. The roots blower muffler according to claim 1, wherein: the cotton board of second amortization (4) is seted up a plurality of evenly distributed's installing port, buffer damping ring (6) surface rigid coupling has buffer spring (5) that a plurality of is the annular array and distributes.

3. The roots blower muffler according to claim 1, wherein: the utility model discloses a silencer, including amortization casing (1), the cotton board of second amortization (4) that the inner wall rigid coupling of a plurality of equidistance distributes, shunt tubes (7) one end rigid coupling round platform pipe, just the less one end rigid coupling shunt tubes (7) of round platform pipe opening.

4. The roots blower muffler according to claim 1, wherein: amortization casing (1) and weakening casing (10) have all seted up the installation cavity, just all be equipped with the cotton board of first amortization (3) in the installation cavity, the equal rigid coupling in honeycomb duct (17) both ends has third flange (16), honeycomb duct (17) are round platform shape structure just honeycomb duct (17) the one end that the opening is big is located and is weakened casing (10) one side.

5. The roots blower muffler according to claim 1, wherein: the rotating opening is formed in the rotating plate (13), one end of the fixing column (12) penetrates through the rotating opening and extends to one side of the rotating plate (13), and two ends of the fixing column (12) are fixedly connected to the inner wall of the weakening shell (10).

6. The roots blower muffler according to claim 1, wherein: fixed column (12) surface and rotation are connected with a plurality of rotor plate (13), just rotor plate (13) surface rigid coupling has a plurality of to be mounting panel (14) that the annular array distributes, just mounting panel (14) both sides all rigid coupling has third cotton board (15) of eliminating the sound.