CN2035683U - Noise controlling device for pneumatic grinding wheel - Google Patents
Noise controlling device for pneumatic grinding wheel Download PDFInfo
- Publication number
- CN2035683U CN2035683U CN 88216770 CN88216770U CN2035683U CN 2035683 U CN2035683 U CN 2035683U CN 88216770 CN88216770 CN 88216770 CN 88216770 U CN88216770 U CN 88216770U CN 2035683 U CN2035683 U CN 2035683U
- Authority
- CN
- China
- Prior art keywords
- noise
- sleeve
- grinding wheel
- controlling device
- pneumatic grinding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a noise controlling device for a pneumatic grinding wheel used in the industry of mechanical process. The whole device is composed of a sleeve, a sealing ring and sound absorbing material. The utility model is characterized in that the noise controlling device for the pneumatic grinding wheel has a noise reduction function. The noise can be decreased from 114dB (A) to 85dB (A) by utilizing the principle of sonic energy attenuation. The utility model has the advantages of simple structure, light weight, low cost, convenient maintenance and outstanding noise reduction effect. The noise controlling device for the pneumatic grinding wheel is an ideal controlling device for the pneumatic grinding wheel.
Description
The utility model is a kind of isolated plant that is used for the pneumatic emery wheel noise of mechanical processing industry control.
The noise of normally used pneumatic emery wheel mainly is an exhaust noise at present, and the noise control aspect of pneumatic emery wheel does not have desirable solution so far in the mechanical processing industry both at home and abroad.As the moving milling drum of Russian Patent 2710440 trumpeters, structural shape and using method and the utility model have very big difference, its complex structure, and investment cost is big, operating maintenance inconvenience, noise reduction is also poor, has seriously influenced operator's physical and mental health.West Germany, Japan, the U.S.'s more employed pneumatic emery wheels effect aspect noise reduction are also very undesirable for another example, and its noise all reaches 90dB(A) more than.Therefore develop pneumatic emery wheel oise damping means is new problem anxious to be solved both at home and abroad always.
The purpose of this utility model be exactly for provide a kind of have simple in structure, reduced investment, in light weight, operating maintenance convenient, the significant pneumatic emery wheel oise damping means of noise reduction.
The utility model is achieved in that whole device is made up of sleeve, sound-absorbing material and sealing ring.The outer surface of sleeve is the annular knurl face, bored many apertures on 1/2 surface of sleeve, and disposed with former machine exhaust outlet off normal direction, the gross area of being holed on the sleeve is 1.5 times of former exhaust port area, with sound-absorbing material, sleeve combines the end with former machine and encrypts seal in the sleeve.
The principle of noise reduction of pneumatic emery wheel oise damping means is to guarantee under the enough big prerequisite of exhaust passage area, utilizes the noise-cancelling theory of the distinctive shift frequency effect of aperture and changes the purpose that air flow stream always reaches noise reduction.Set up certain thickness sound-absorbing material in the sleeve, when the sound wave that is given off by exhaust outlet is injected into the sound-absorbing material surface, part sound wave is from the reflection of sound-absorbing material surface, part acoustic wave transmission is gone into the air vibration that causes behind the sound-absorbing material the inside in pore or the slit, part acoustic energy because of changing into heat energy, friction and viscosity resistance is attenuated, acoustic wave segment enters the space after decaying by sound-absorbing material, but intensity of sound reduces greatly, thereby make the pneumatic emery wheel noise machine other by 114dB(A) reduce to 85dB(A), apart from one meter of machine by 104dB(A) reduce to 77dB(A).
Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof:
Fig. 1 is a structure chart of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
With reference to accompanying drawing: whole device is made up of sleeve 1, sealing ring 2, sealing ring 3 and sound-absorbing material 4.Sleeve 1 is a cylinder, is drilled with many apertures on 1/2 surface, and sound-absorbing material 4 is equipped with in inside, and sealing ring 2 and sealing ring 3 are placed on the two ends of sleeve 1 respectively.
Noise controlling device for pneumatic grinding wheel compared with prior art has simple in structure, and cost is low, and weight is light, and operating maintenance is convenient, and noise reduction is remarkable, has protected operator's physical and mental health. This device improves forward a step with pneumatic grinding wheel noise control technique in the mechanical processing industry, will be widely used in the mechanical processing industry.
Claims (3)
1, a kind of pneumatic emery wheel oise damping means that is used for mechanical processing industry, it is made up of sleeve, sealing ring and sound-absorbing material, it is characterized in that: set up one deck sound-absorbing material in the sleeve, sealing ring is placed at the sleeve two ends, be drilled with many apertures on 1/2 surface of sleeve, and dispose with former machine exhaust outlet off normal direction.
2, pneumatic emery wheel oise damping means according to claim 1, it is characterized in that: said sound-absorbing material is the inner surface that is placed on sleeve.
3, pneumatic emery wheel oise damping means according to claim 1 is characterized in that: said sealing ring is to be placed on sleeve two ends and former machine contact site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88216770 CN2035683U (en) | 1988-08-13 | 1988-08-13 | Noise controlling device for pneumatic grinding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88216770 CN2035683U (en) | 1988-08-13 | 1988-08-13 | Noise controlling device for pneumatic grinding wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2035683U true CN2035683U (en) | 1989-04-12 |
Family
ID=4849361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88216770 Expired - Lifetime CN2035683U (en) | 1988-08-13 | 1988-08-13 | Noise controlling device for pneumatic grinding wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2035683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608049A (en) * | 2015-01-07 | 2015-05-13 | 黄文辉 | Low-noise type cylindrical grinding head structure and noise reducing method used for same |
-
1988
- 1988-08-13 CN CN 88216770 patent/CN2035683U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608049A (en) * | 2015-01-07 | 2015-05-13 | 黄文辉 | Low-noise type cylindrical grinding head structure and noise reducing method used for same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |