CN214221492U

CN214221492U - Sound-insulation noise-reduction mechanism of Roots blower

Info

Publication number: CN214221492U
Application number: CN202023347606.2U
Authority: CN
Inventors: 陈伟超
Original assignee: Zhengzhou Tianrui Cement Co ltd
Current assignee: Zhengzhou Tianrui Cement Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-17
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a mechanism of making an uproar falls in roots's fan sound insulation relates to and falls the technical field of making an uproar, for solving current roots's fan, because the noise can not effectively be fallen by making an uproar, causes the obvious problem of fan noise. The lower extreme of the casing of making an uproar is provided with carries the thing acoustic celotex board, the lower extreme that carries the thing acoustic celotex board is provided with the bottom soundproof cotton, and the bottom soundproof cotton is connected with year thing acoustic celotex board gluing, the lower extreme of bottom soundproof cotton is provided with the shell and inhales the cotton layer of sound, the lower extreme that the cotton layer was inhaled to the shell is provided with the fan limiting plate, the lower extreme of fan limiting plate is provided with the support holder, the both sides of support holder all are provided with spacing bolt, and spacing bolt is provided with fourteen, the upper end of carrying the thing acoustic celotex board is provided with the fan, the upper end of fan is provided with the guide duct, and the structure installation of should making an uproar should fall, and sound insulation effect is good, and multilayer composite structure has greatly reduced the influence of noise to the external world.

Description

Sound-insulation noise-reduction mechanism of Roots blower

Technical Field

The utility model relates to a technical field of making an uproar specifically is mechanism of making an uproar falls in roots's fan sound insulation.

Background

Noise reduction, as the name implies, is the reduction of the impact of noise on humans. Acoustic noise reduction is a method of controlling the intensity of noise on a propagation path. The sound absorption of objects is ubiquitous, and the effect of sound absorption is not only related to the sound absorbing material, but also to the sound absorbing structure selected. This technology is mainly used for indoor spaces. A muffler is a device that can pass an air flow and effectively reduce noise. Mufflers are commonly used to reduce noise transmitted through the inlet and outlet or along the ducts of various aerodynamic devices. Mufflers are widely used, for example, in internal combustion engines, ventilators, blowers, compressors, gas turbines, and various noise controls for high pressure, high airflow emissions. The noise reduction principle is different for different mufflers. Common silencing techniques include resistive silencing, impedance composite silencing, resonant silencing, loss silencing, diffusion silencing, etc. The noise-generating machine equipment is enclosed in a small space, which is separated from the surroundings, in order to reduce the environmental impact of the noise, which is called sound insulation.

However, the existing Roots blower has the problem of obvious working noise of the blower because the noise cannot be effectively reduced; therefore, the existing requirements are not met, and the sound insulation and noise reduction mechanism of the Roots blower is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a roots's fan gives sound insulation and falls mechanism of making an uproar to solve the current roots's fan that proposes among the above-mentioned background art, because the noise can not effectively be fallen by making an uproar, cause the obvious problem of fan noise.

In order to achieve the above object, the utility model provides a following technical scheme: the sound insulation and noise reduction mechanism of the Roots blower comprises a noise reduction shell, wherein a loading sound insulation plate is arranged at the lower end of the noise reduction shell, bottom sound insulation cotton is arranged at the lower end of the loading sound insulation plate and is adhesively connected with the loading sound insulation plate, a shell sound absorption cotton layer is arranged at the lower end of the bottom sound insulation cotton and is adhesively connected with the bottom sound insulation cotton, a blower limiting plate is arranged at the lower end of the shell sound absorption cotton layer, the blower limiting plate is adhesively connected with the shell sound absorption cotton layer, a supporting bracket is arranged at the lower end of the blower limiting plate, limiting bolts are arranged on two sides of the supporting bracket, fourteen limiting bolts are arranged, the blower limiting plate is in threaded connection with the supporting bracket through the limiting bolts, a blower is arranged at the upper end of the loading sound insulation plate, a wind guide pipe is arranged at the upper end of the blower, and the wind guide pipe is connected with a blower flange, the upper end of guide duct is provided with keeps off the dirt case, and keeps off dirt case and guide duct welded connection, one side of fan is provided with the motor, and the motor is connected with the fan transmission, the lower extreme of motor is provided with the motor support, and motor support and motor welded connection, it is provided with the interface sealing layer to fall the inside interface sealing layer that is provided with in casing both sides of making an uproar, the front and back end of the casing of making an uproar is provided with first partial shipment respectively and falls the casing of making an uproar and the second partial shipment casing of making an uproar, the lower extreme of the casing of making an uproar falls in first partial shipment is provided with down the partial shipment and falls the casing of making an uproar, the.

Preferably, the inside of the noise reduction shell is provided with a sound absorption interlayer, and the sound absorption interlayer is connected with the inner wall of the noise reduction shell in an adhesive manner.

Preferably, all be provided with on the inner wall of the casing of making an uproar, just inhale the sound sponge and fall casing gluing of making an uproar and be connected.

Preferably, the one end that the casing of making an uproar falls in first partial shipment is close to the second and divides the dress and fall the casing of making an uproar is provided with casing side joint picture peg, and casing side joint picture peg and the first casing welded connection that falls in the dress of making an uproar, and the first partial shipment falls the casing of making an uproar and the second partial shipment falls the casing and is connected through casing side joint picture peg joint, be provided with partial shipment casing slot on the upper end inner wall of the casing of making an uproar falls in the partial shipment down, and partial shipment casing picture peg and partial shipment casing slot joint are connected.

Preferably, the upper end and the lower end of the interface sealing layer are both provided with a dentate sealing interface, and the upper dentate sealing interface and the lower dentate sealing interface are connected by a clamping groove.

Preferably, the inside of year thing acoustic celotex board is provided with ventilative sound cotton hole of inhaling, and ventilative sound cotton hole of inhaling is provided with nine.

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

1. the utility model discloses a casing of making an uproar falls in first partial shipment, the casing of making an uproar falls in the second partial shipment falls the casing and falls the setting of making an uproar casing component down of making an uproar, it divide into first half and the latter half to fall the casing of making an uproar and the casing joint of making an uproar falls in the second partial shipment, the latter half falls the casing of making an uproar by the lower partial shipment and constitutes by connecting, such setting, first half can follow therefrom unpack apart, and then can accessible installation and pass the guide duct, can compact concatenation when making the installation convenient, effective noise reduction propagates, noise reduction is to external influence, current roots's fan has been solved, because the noise can not effectively be fallen by making an uproar, cause the obvious problem of fan noise.

2. Through the setting of interface sealing layer and the sealed interface of cusp, the sealed nature of kneck can effectively be improved to the multilayer dentate structure plywood, and the propagation of noise also can effectively be reduced to the multilayer plywood, reaches the syllable-dividing effect of making an uproar of falling.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a partial enlarged view of the point A of the present invention;

in the figure: 1. a noise reduction housing; 2. carrying sound insulation board; 3. ventilating sound-absorbing cotton holes; 4. bottom soundproof cotton; 5. a sound absorbing cotton layer on the outer shell; 6. a fan limiting plate; 7. a support bracket; 8. a limit bolt; 9. a fan; 10. an electric motor; 11. a motor bracket; 12. sound-absorbing sponge; 13. a dust blocking box; 14. an air guide pipe; 15. a sound absorbing interlayer; 16. an interface sealing layer; 17. a tooth-shaped sealing interface; 18. a first split noise reduction housing; 19. a second split noise reduction shell; 20. the side of the shell is connected with an inserting plate; 21. split charging shell plugboards; 22. sub-packaging the shell slots; 23. and (5) arranging the noise reduction shell below.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: the sound insulation and noise reduction mechanism of the Roots blower comprises a noise reduction shell 1, wherein a loading sound insulation plate 2 is arranged at the lower end of the noise reduction shell 1, bottom sound insulation cotton 4 is arranged at the lower end of the loading sound insulation plate 2, the bottom sound insulation cotton 4 is in adhesive connection with the loading sound insulation plate 2, a shell sound absorption cotton layer 5 is arranged at the lower end of the bottom sound insulation cotton 4, the shell sound absorption cotton layer 5 is in adhesive connection with the bottom sound insulation cotton 4, a blower limiting plate 6 is arranged at the lower end of the shell sound absorption cotton layer 5, the blower limiting plate 6 is in adhesive connection with the shell sound absorption cotton layer 5, a support bracket 7 is arranged at the lower end of the blower limiting plate 6, limiting bolts 8 are arranged on two sides of the support bracket 7, the limiting bolts 8 are fourteen, the blower limiting plate 6 is in threaded connection with the support bracket 7 through the limiting bolts 8, a blower 9 is arranged at the upper end of the loading sound insulation plate 2, and an air guide pipe 14 is arranged at the upper end of the blower 9, the air guide pipe 14 is in flange connection with the fan 9, the dust blocking box 13 is arranged at the upper end of the air guide pipe 14, the dust blocking box 13 is in welded connection with the air guide pipe 14, the motor 10 is arranged on one side of the fan 9, the motor 10 is in transmission connection with the fan 9, the motor support 11 is arranged at the lower end of the motor 10, the motor support 11 is in welded connection with the motor 10, the interface sealing layers 16 are arranged inside two sides of the noise reduction shell 1, the front end and the rear end of the noise reduction shell 1 are respectively provided with a first sub-assembly noise reduction shell 18 and a second sub-assembly noise reduction shell 19, the lower ends of the first sub-assembly noise reduction shell 18 and the second sub-assembly noise reduction shell 19 are provided with a sub-assembly noise reduction shell 23, the lower end of the interface sealing layer 16 is provided with a sub-assembly shell inserting plate 21, and the sub-assembly shell inserting plate 21 is in welded connection with the interface sealing layer 16.

Further, the inside of casing 1 of making an uproar that falls is provided with inhales sound intermediate layer 15, and inhales sound intermediate layer 15 and fall 1 inner wall of the casing of making an uproar and glue and be connected, inhales sound intermediate layer 15 and is used for absorbing the noise of falling 1 inner wall of the casing of making an uproar and propagating from, has greatly reduced noise pollution degree.

Further, all be provided with on the inner wall of the casing of making an uproar 1 and inhale sound sponge 12, and inhale sound sponge 12 and fall the casing 1 gluing of making an uproar and be connected, inhale sound sponge 12 and fall the device of the interior main noise absorption of casing 1 of making an uproar, effective noise reduction intensity.

Furthermore, a shell side inserting plate 20 is arranged at one end of the first split noise reduction shell 18 close to the second split noise reduction shell 19, the shell side inserting plate 20 is welded with the first split noise reduction shell 18, the first split noise reduction shell 18 is connected with the second split noise reduction shell 19 through the shell side inserting plate 20 in a clamping manner, a split shell inserting groove 22 is arranged on the inner wall of the upper end of the lower split noise reduction shell 23, the split shell inserting plate 21 is connected with the split shell inserting groove 22 in a clamping manner, the noise reduction shell 1 is divided into an upper half part and a lower half part, the upper half part is formed by connecting the first split noise reduction shell 18 with the second split noise reduction shell 19 in a clamping manner, the lower half part is formed by connecting the lower split noise reduction shell 23, and in such a configuration, the upper half part can be disassembled from the upper half part and further can be installed without obstacles and pass through the air guide pipe 14, so that the installation is convenient and the noise transmission can be effectively reduced through the splicing manner, the noise reduction has solved current roots's fan to external influence, because the noise can not effectively be fallen by making an uproar, causes the obvious problem of fan noise.

Further, the upper and lower both ends of interface sealing layer 16 all are provided with dentate sealed interface 17, and two dentate sealed interface 17 draw-in grooves from top to bottom connect, and the kneck leakproofness can effectively be improved to multilayer dentate structure plywood, and the propagation of multilayer plywood also can effective noise reduction reaches and falls the syllable-dividing effect of making an uproar.

Further, the inside of carrying thing acoustic celotex board 2 is provided with ventilative sound cotton hole 3 of inhaling, and ventilative sound cotton hole 3 of inhaling is provided with nine for noise abatement when ventilating the heat dissipation propagates.

The working principle is as follows: when in use, the noise reduction shell 1 is divided into an upper half part and a lower half part, the upper half part is formed by connecting a first split noise reduction shell 18 and a second split noise reduction shell 19 in a clamping way, the lower half part is formed by connecting a lower split noise reduction shell 23, the upper half part can be disassembled therefrom, and then can be installed without obstacles and pass through the air guide pipe 14, so that the installation is convenient, meanwhile, the noise transmission can be effectively reduced through splicing, the influence of the noise on the outside is reduced, the problem that the working noise of the fan is obvious because the noise cannot be effectively reduced in the existing Roots fan is solved, the sealing performance of a joint can be effectively improved by a multilayer dentate structure laminate, the transmission of the noise can also be effectively reduced by the multilayer laminate, the noise reduction and sound insulation effects are achieved, the sound absorption interlayer 15 is used for absorbing the noise transmitted from the inner wall of the noise reduction shell 1, the noise pollution degree is greatly reduced, the sound absorption sponge 12 is a device for absorbing the main noise in the noise reduction shell 1, effective noise intensity that reduces, the structure installation of should making an uproar should fall, and it is effectual to give sound insulation, and multilayer composite structure has greatly reduced the influence of noise to external world.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Roots's fan gives sound insulation and falls mechanism of making an uproar, including making an uproar casing (1), its characterized in that: the lower end of the noise reduction shell (1) is provided with a loading sound insulation board (2), the lower end of the loading sound insulation board (2) is provided with bottom sound insulation cotton (4), the bottom sound insulation cotton (4) is connected with the loading sound insulation board (2) in an adhesive manner, the lower end of the bottom sound insulation cotton (4) is provided with a shell sound absorption cotton layer (5), the shell sound absorption cotton layer (5) is connected with the bottom sound insulation cotton (4) in an adhesive manner, the lower end of the shell sound absorption cotton layer (5) is provided with a fan limiting plate (6), the fan limiting plate (6) is connected with the shell sound absorption cotton layer (5) in an adhesive manner, the lower end of the fan limiting plate (6) is provided with a supporting bracket (7), two sides of the supporting bracket (7) are respectively provided with limiting bolts (8), the limiting bolts (8) are arranged in fourteen numbers, and the fan limiting plate (6) and the supporting bracket (7, the upper end of the loading sound insulation board (2) is provided with a fan (9), the upper end of the fan (9) is provided with an air guide pipe (14), the air guide pipe (14) is in flange connection with the fan (9), the upper end of the air guide pipe (14) is provided with a dust blocking box (13), the dust blocking box (13) is in welded connection with the air guide pipe (14), one side of the fan (9) is provided with a motor (10), the motor (10) is in transmission connection with the fan (9), the lower end of the motor (10) is provided with a motor support (11), the motor support (11) is in welded connection with the motor (10), interface sealing layers (16) are arranged inside two sides of the noise reduction shell (1), the front end and the rear end of the noise reduction shell (1) are respectively provided with a first sub-packaging noise reduction shell (18) and a second sub-packaging noise reduction shell (19), and the lower ends of the first sub-packaging noise reduction shell (18) and the second sub-packaging noise reduction shell (19) are provided with a lower sub-packaging shell (23) ) The lower end of the interface sealing layer (16) is provided with a split charging shell inserting plate (21), and the split charging shell inserting plate (21) is connected with the interface sealing layer (16) in a welding mode.

2. The sound insulation and noise reduction mechanism of the Roots blower according to claim 1, wherein: the interior of the noise reduction shell (1) is provided with a sound absorption interlayer (15), and the sound absorption interlayer (15) is connected with the inner wall of the noise reduction shell (1) in an adhesive manner.

3. The sound insulation and noise reduction mechanism of the Roots blower according to claim 1, wherein: the noise reduction device is characterized in that sound absorption sponges (12) are arranged on the inner wall of the noise reduction shell (1), and the sound absorption sponges (12) are connected with the noise reduction shell (1) in an adhesive mode.

4. The sound insulation and noise reduction mechanism of the Roots blower according to claim 1, wherein: the one end that casing (18) of making an uproar falls in first partial shipment is close to casing (19) of making an uproar falls in the second partial shipment is provided with casing side joint picture peg (20), and casing side joint picture peg (20) fall casing (18) welded connection of making an uproar with first partial shipment, and first partial shipment fall casing (18) of making an uproar fall casing (19) and second partial shipment and fall through casing side joint picture peg (20) joint and be connected, be provided with partial shipment casing slot (22) on the upper end inner wall of casing (23) of making an uproar falls in the partial shipment down, and partial shipment casing picture peg (21) are connected with partial shipment casing slot (22) joint.

5. The sound insulation and noise reduction mechanism of the Roots blower according to claim 1, wherein: the upper end and the lower end of the interface sealing layer (16) are both provided with tooth-shaped sealing interfaces (17), and the upper tooth-shaped sealing interface (17) and the lower tooth-shaped sealing interface (17) are connected through clamping grooves.

6. The sound insulation and noise reduction mechanism of the Roots blower according to claim 1, wherein: the inside of year thing acoustic celotex board (2) is provided with ventilative sound cotton hole (3) of inhaling, and ventilative sound cotton hole (3) of inhaling is provided with nine.