CN113757079A

CN113757079A - Air compressor machine exhaust noise reduction structure with sound absorbing material arranged in exhaust cavity

Info

Publication number: CN113757079A
Application number: CN202111150715.1A
Authority: CN
Inventors: 高雯; 覃星念; 沈琼
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2021-12-07

Abstract

The application provides a sound absorbing material's air compressor machine exhaust noise reduction structure is arranged to exhaust chamber belongs to the air compressor machine and falls the technical field of making an uproar. This air compressor machine that sound absorbing material was arranged in exhaust chamber exhausts and falls structure of making an uproar includes air compressor machine disk seat subassembly and falls the subassembly of making an uproar. The noise reduction assembly comprises a sound absorption layer, a sound absorption plate and a sound absorption plate, wherein the sound absorption plate is fixedly connected with the air compressor valve seat plate assembly, the sound absorption plate is located in the exhaust cavity, the sound absorption hole is formed in the sound absorption plate, and the sound absorption layer is fixedly connected with the sound absorption plate close to one side of the exhaust cavity. This application is at the air compressor machine during operation, and the sound layer of inhaling that is located the exhaust chamber is inhaled the sound and is fallen it for the first time, and the cooperation bloop improves the noise cancelling effect, reduces the noise, inhales the sound to it through the acoustic baffle of one side simultaneously and falls the noise, reduces vibrations effect, further improves the noise cancelling effect, improves staff's work efficiency, avoids causing the damage to staff's healthy.

Description

Air compressor machine exhaust noise reduction structure with sound absorbing material arranged in exhaust cavity

Technical Field

The application relates to the field of making an uproar falls in the air compressor machine, particularly, relates to a structure of making an uproar falls in air compressor machine exhaust that sound absorbing material was arranged to exhaust chamber.

Background

The air compressor is used for compressing gas, converts the mechanical energy of original driving into the device of gas pressure ability, and it mainly comprises gas circuit circulation system, water route circulation system, oil circulation system, distribution system, screen protection system, direct current power supply system and DTC control system etc. and the air compressor is similar with the water pump structure, and the air compressor mainly includes piston air compressor and screw air compressor, and piston air compressor is comparatively common in daily life.

At present, the air compressor machine is in the use, because gaseous business turn over between valve seat board and the valve block, slaps between valve block and the valve seat board and produce a large amount of noises, causes serious noise pollution, if long-time the use, causes the damage to staff's hearing, influences staff's work efficiency and healthy from this.

How to invent an air compressor exhaust noise reduction structure with sound absorption materials arranged in an exhaust cavity to improve the problems becomes a problem to be solved urgently by technical personnel in the field.

Disclosure of Invention

In order to compensate above not enough, the application provides an air compressor machine exhaust of acoustic material is fallen structure of making an uproar to exhaust chamber arrangement, aims at improving and slaps between valve block and the valve seat board and produce the noise problem.

The embodiment of the application provides an air compressor machine exhaust of sound absorbing material is arranged in exhaust chamber falls structure of making an uproar includes air compressor machine disk seat subassembly and falls the subassembly of making an uproar.

Air compressor machine disk seat board subassembly upside is equipped with the cylinder cap, the cylinder cap with be equipped with the exhaust chamber between the air compressor machine disk seat board subassembly, the subassembly of making an uproar falls includes noise absorption layer, acoustical panel and acoustic panel, acoustical panel fixed connection in the cylinder cap, the acoustical panel is located the intracavity portion of exhausting, the acoustical panel has been seted up the hole of making an uproar, noise absorption layer fixed connection in the acoustical panel is close to exhaust chamber one side, the acoustic panel is located the acoustical panel opposite side, the acoustic panel sliding connection in the cylinder cap.

In the above-mentioned implementation process, acoustical panel welded fastening in air compressor machine disk seat board subassembly, sound absorbing layer bonds and is fixed in the acoustical panel, the sound attenuation hole increases the resonance, the interference etc. of noise for noise elimination efficiency is higher, at the air compressor machine during operation, is located the exhaust chamber the sound absorbing layer is gone on it to inhale the sound for the first time and is fallen the noise, the cooperation the sound attenuation hole improves the noise cancelling effect, reduces the noise, simultaneously through one side the sound absorbing panel is inhaled the sound to it and is fallen the noise, reduces vibrations effect, further improves the noise cancelling effect, reduces the noise pollution that produces, improves staff's work efficiency, avoids causing the damage to staff's the health.

In a specific embodiment, a limiting plate is arranged in the exhaust cavity, and the limiting plate is designed in an arc shape.

In a specific embodiment, a valve seat plate is arranged at the bottom side in the exhaust cavity, a fixing bolt is arranged between the limiting plate and the valve seat plate, and the limiting plate and the valve seat plate are fixedly connected through the fixing bolt.

In the implementation process, the fixing bolt is fixed on the limiting plate to the valve seat plate in a threaded manner, so that the fixing bolt is convenient to fix and install.

In a specific embodiment, the sound absorption layer is made of a high-temperature glass wool board, and the sound absorption layer is provided with grid holes.

In the implementation process, the sound absorption layer primarily absorbs sound and reduces noise, so that the sound absorption effect is improved.

In a specific embodiment, the silencing holes are located between the grid holes, and the silencing holes are uniformly distributed on the silencing plate.

In the implementation process, the silencing holes are small and dense, the acoustic resistance is large, the acoustic resistance is overcome, and the noise energy is effectively attenuated.

In a specific embodiment, the sound-absorbing plate is of a wave-folded design, and a sound-insulating cavity is arranged between the cylinder cover and the sound-absorbing plate.

In the implementation process, the sound absorption plate has certain sound absorption capacity after the wave folding design, the wave folding can be regarded as a series of protruding interfaces, when the sound waves meet the protruding interfaces in the transmission process, the sound waves can be decomposed into a plurality of weak reflected sound waves, the sound energy is consumed, meanwhile, the sound absorption layer plays a sound absorption role, and the number of the sound absorption holes is effectively increased due to the wave folding design. The noise passes through the sound-absorbing plate to the sound-insulating cavity, and is further attenuated by the sound-absorbing plate.

In a specific embodiment, the sound insulation chamber is communicated with the exhaust chamber through the sound deadening hole and the grid hole.

In a specific embodiment, the sound absorption plate is positioned in the sound insulation cavity, and the sound absorption plate is made of soundproof cotton materials.

In a specific embodiment, a spring is fixedly connected to one side of the sound-absorbing plate, and the other end of the spring is fixedly connected to the cylinder cover.

In the implementation process, the spring is fixed on the sound absorption plate through bolts, the other end of the spring is fixed on the air compressor valve seat plate assembly through bolts, and the spring and the sound absorption plate can play a role in sound insulation and vibration isolation.

In a particular embodiment, the sound-absorbing layer is attached to the sound-absorbing panel.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of an exhaust noise reduction structure of an air compressor with sound absorption materials arranged in exhaust cavities according to an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a noise reduction assembly according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a sound-absorbing panel provided in an embodiment of the present application.

In the figure: 10-an air compressor valve seat plate component; 110-an exhaust chamber; 120-cylinder cover; 130-limiting plate; 131-fixing bolts; 150-a valve seat plate; 20-a noise reduction assembly; 210-a sound absorbing layer; 211-mesh holes; 220-a sound-absorbing panel; 221-silencing holes; 230-an acoustic chamber; 250-a sound absorbing panel; 260-spring.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of 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 some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-4, the present application provides an exhaust noise reduction structure of an air compressor with sound absorption material disposed in an exhaust cavity, which includes an air compressor valve seat plate assembly 10 and a noise reduction assembly 20.

Wherein, fall subassembly 20 fixed connection in air compressor machine disk seat board subassembly 10 of making an uproar, fall subassembly 20 and be used for reducing the noise pollution that the air compressor machine during operation produced, improve staff's work efficiency, avoid causing the damage to staff's the healthy.

Referring to fig. 1 and 2, a cylinder cover 120 is disposed on the upper side of the air compressor valve seat plate assembly 10, and an exhaust cavity 110 is disposed between the cylinder cover 120 and the air compressor valve seat plate assembly 10.

In some specific embodiments, a limiting plate 130 is disposed in the exhaust chamber 110, the limiting plate 130 is designed in an arc shape, a valve seat plate 150 is disposed at a bottom side of the interior of the exhaust chamber 110, a fixing bolt 131 is disposed between the limiting plate 130 and the valve seat plate 150, the limiting plate 130 and the valve seat plate 150 are fixedly connected by the fixing bolt 131, and the fixing bolt 131 is screwed on the limiting plate 130 to the valve seat plate 150, so as to facilitate fixed installation.

Referring to fig. 1, 2, 3 and 4, the noise reduction assembly 20 includes a sound absorption layer 210, a sound absorption plate 220 and a sound absorption plate 250, the sound absorption plate 220 is fixedly connected to the cylinder cover 120, the sound absorption plate 220 is welded and fixed to the cylinder cover 120, the sound absorption plate 220 is located inside the exhaust cavity 110, the sound absorption plate 220 is provided with a sound absorption hole 221, the sound absorption hole 221 increases resonance, interference and the like of noise, so that the sound absorption efficiency is higher, the sound absorption layer 210 is fixedly connected to one side of the sound absorption plate 220 close to the exhaust cavity 110, the sound absorption layer 210 is adhesively fixed to the sound absorption plate 220, the sound absorption plate 250 is located on the other side of the sound absorption plate 220, and the sound absorption plate 250 is slidably connected to the cylinder cover 120.

In some embodiments, the sound absorbing layer 210 is made of a high temperature glass wool board, the sound absorbing layer 210 is provided with mesh holes 211, the sound absorption layer 210 is used for carrying out preliminary sound absorption and noise reduction to improve the sound absorption effect, the sound absorption holes 221 are positioned between the grid holes 211, the sound absorption holes 221 are uniformly distributed on the sound absorption plate 220, the sound absorption holes 221 are small and dense, the sound resistance is large, the sound resistance is overcome, the noise energy is effectively attenuated, the sound absorption plate 220 is in a wave folding design, the sound insulation cavity 230 is arranged between the cylinder cover 120 and the sound absorption plate 220, the sound absorption plate 220 has certain sound absorption capacity after the wave folding design, because the wave folds can be regarded as a series of protruding interfaces, when the sound waves encounter the convex interfaces in the process of propagation, the sound waves are decomposed into a plurality of weak reflected sound waves, the sound energy is consumed, meanwhile, the sound absorption layer 210 plays a sound absorption role, and the number of the sound attenuation holes 221 is effectively increased due to the wave folding design. Noise passes through abatvoix 220 to the sound insulation chamber 230 in, obtain further decay through acoustic baffle 250, sound insulation chamber 230 is linked together through muffling hole 221 and net hole 211 and exhaust chamber 110, acoustic baffle 250 is located sound insulation chamber 230, acoustic baffle 250 is made for the soundproof cotton material, acoustic baffle 250 one side fixedly connected with spring 260, spring 260 other end fixed connection is in air compressor machine valve seat board subassembly 10, spring 260 bolted fixation is in acoustic baffle 250, spring 260 other end bolted fixation is in cylinder cap 120, spring 260 and acoustic baffle 250 can play the effect of sound insulation and vibration isolation, acoustic layer 210 hugs closely abatvoix 220.

This air compressor machine of sound absorbing material is arranged in exhaust chamber exhausts the theory of operation of making an uproar structure of falling: when the air compressor machine is in operation, the sound absorption layer 210 located in the exhaust cavity 110 absorbs sound and reduces noise for the first time, the sound absorption plate 220 has certain sound absorption capacity after folding the wave, because the folding wave can be regarded as a series of protruding interfaces, when the sound wave is in the transmission process, meet the interface of salient, will be decomposed into many weaker reflection sound waves, the sound energy is consumed, simultaneously the sound absorption layer 210 plays the effect of sound absorption, the folding design of wave also makes the sound attenuation hole 221 quantity effectively improve, cooperate the sound attenuation hole 221, improve the noise reduction effect, reduce the noise, simultaneously absorb sound and reduce noise through the sound absorption plate 250 of one side, reduce the vibration effect, further improve the noise reduction effect, reduce the noise pollution that produces, improve staff's work efficiency, avoid causing the damage to staff's health.

It should be noted that the specific model specifications of the muffling plate 220 and the spring 260 need to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.

The above description is only an example of the present application and is not intended to limit the scope of 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. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. Air compressor exhaust noise reduction structure with sound absorption materials arranged in exhaust cavity, which is characterized by comprising

The air compressor valve seat plate assembly (10) is characterized in that a cylinder cover (120) is arranged on the upper side of the air compressor valve seat plate assembly (10), and an exhaust cavity (110) is arranged between the cylinder cover (120) and the air compressor valve seat plate assembly (10);

noise reduction assembly (20), noise reduction assembly (20) are including noise-absorbing layer (210), acoustical panel (220) and acoustic baffle (250), acoustical panel (220) fixed connection in cylinder cap (120), acoustical panel (220) are located inside exhaust chamber (110), acoustical panel (220) have been seted up and have been silenced hole (221), noise-absorbing layer (210) fixed connection in acoustical panel (220) are close to exhaust chamber (110) one side, acoustic baffle (250) are located acoustical panel (220) opposite side, acoustic baffle (250) sliding connection in cylinder cap (120).

2. The air compressor exhausting and noise reducing structure with the sound absorbing material arranged in the exhaust cavity as claimed in claim 1, wherein a limiting plate (130) is disposed in the exhaust cavity (110), and the limiting plate (130) is designed in an arc shape.

3. The air compressor exhausting and noise reducing structure with the sound absorbing material arranged in the exhaust cavity as claimed in claim 2, wherein a valve seat plate (150) is arranged at the bottom side of the interior of the exhaust cavity (110), a fixing bolt (131) is arranged between the limiting plate (130) and the valve seat plate (150), and the limiting plate (130) and the valve seat plate (150) are fixedly connected through the fixing bolt (131).

4. The air compressor exhaust and noise reduction structure with the sound absorption material arranged in the exhaust cavity as claimed in claim 1, wherein the sound absorption layer (210) is made of a high temperature glass wool board, and the sound absorption layer (210) is provided with grid holes (211).

5. The air compressor exhausting and noise reducing structure with sound absorbing material arranged in the exhausting cavity as claimed in claim 4, wherein said muffling holes (221) are located between said grid holes (211), and said muffling holes (221) are uniformly distributed on said muffling plate (220).

6. The air compressor exhausting and noise reducing structure with sound absorbing material arranged in exhaust cavity as claimed in claim 5, wherein said sound absorbing plate (220) is of a wave-folded design, and a sound insulating cavity (230) is arranged between said cylinder cover (120) and said sound absorbing plate (220).

7. The air compressor exhausting and noise reducing structure with sound absorbing material arranged in exhaust cavity as claimed in claim 6, wherein said sound insulating cavity (230) is communicated with said exhaust cavity (110) through said sound absorbing hole (221) and said mesh hole (211).

8. The air compressor exhaust and noise reduction structure with sound absorption material arranged in the exhaust cavity as claimed in claim 7, wherein the sound absorption plate (250) is located in the sound insulation cavity (230), and the sound absorption plate (250) is made of soundproof cotton.

9. The structure of claim 8, wherein said sound absorbing plate (250) is fixedly connected with a spring (260) on one side, and said spring (260) is fixedly connected with said cylinder cover (120) on the other side.

10. The air compressor exhausting and noise reducing structure with the sound absorbing material arranged in the exhausting cavity as set forth in claim 1, wherein the sound absorbing layer (210) is closely attached to the sound absorbing plate (220).