CN201425079Y - Muffler plate - Google Patents
Muffler plate Download PDFInfo
- Publication number
- CN201425079Y CN201425079Y CN2009200895069U CN200920089506U CN201425079Y CN 201425079 Y CN201425079 Y CN 201425079Y CN 2009200895069 U CN2009200895069 U CN 2009200895069U CN 200920089506 U CN200920089506 U CN 200920089506U CN 201425079 Y CN201425079 Y CN 201425079Y
- Authority
- CN
- China
- Prior art keywords
- plate
- cast iron
- iron plate
- muffler
- slot
- 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 - Fee Related
Links
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000003245 coal Substances 0.000 abstract description 3
- 238000013016 damping Methods 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 229910000975 Carbon steel Inorganic materials 0.000 abstract description 2
- 239000010962 carbon steel Substances 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 9
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 208000014674 injury Diseases 0.000 description 5
- 206010020772 Hypertension Diseases 0.000 description 3
- 230000035807 sensation Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000021479 Cardiovascular injury Diseases 0.000 description 1
- 208000003443 Unconsciousness Diseases 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000001919 adrenal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 208000016354 hearing loss disease Diseases 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 230000001631 hypertensive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000002889 sympathetic effect Effects 0.000 description 1
- 210000003454 tympanic membrane Anatomy 0.000 description 1
Images
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a muffler plate, which is mainly composed of a cast iron plate and a rubber plate arranged at the lower part of the cast iron plate, wherein the thickness of the cast ironplate is from 2 to 5cm, and the thickness of the rubber plate 2 is from 0.5 to 2cm. Further, the surface of the cast iron plate is provided with a shallow slot the depth of which is from 0.5 to 1.5cm, and the shallow slot is a rectangular slot or an oval slot or a circular slot. As the muffler plate adopts the cast iron plate and the rubber plate and the compressive strength and the hardness of the cast iron plate close to carbon steel, the muffler plate has good damping and good corrosion resistance and is more suitable for bearing impact loading. At the same time, in the process of using, the shallow slot and the surface of cast iron can exist a layer of pulverized coal, helping to weaken the impact and greatly reducing the noise generated by friction. With simple structure, the mufflerplate can meet a variety of requirements of work environment on plate strength, reduce the impact of materials on equipment, significantly lower the frequency of replacement of the equipment steel plate, reduce costs, and increase the service life of the equipment.
Description
Technical field
The utility model relates to the device of a kind of reduction and absorption of noise, relates in particular to a kind of muffler plate that is applicable to the sound-deadening and noise-reducing of devices such as screening in the coal course of working, fragmentation, chute, material feeding point.
Background technique
Present employed facility is all simply made by steel plate as picking up equipment such as cash bucket, chute in the colliery, when the carbon piece is in contact with it, because bump and friction can be sent ear-piercing noise.
As everyone knows, noise except that the ear-drum of meeting harm people, to the people psychologically, all can produce negative influence mentally, so the people who under noise, lives for a long time, on its physiology, all be subjected to serious injury psychologically.
Follow development of science and technology, the machinery of all stereo sets, the traffic tool, factory, the construction of building site etc., none does not produce noise, and the noise in many places is already to producing serious injury in wherein people.
Noise generally can produce following harm:
The hearing impairment that noise causes
Noise is that injury ear phonoreceptor official's sensation is sent out cell, comes to harm in case sensation is sent out cell, then restores never.Feel that high-frequency sensation sends out the easiest injury that is subjected to noise of cell, so common people's hearing has been subjected to noise injury, listened force inspecting but often unconscious if do, to can't link up the time, late up to hearing disability with the people.
Noise causes the cardiovascular injury
Acute post noise exposure often causes hypertension, then secretes rising at 100 decibels of ten minutes following adrenal hormones, and sympathetic nerve is by excitement.Though the epidemiology survey result is inconsistent, nearest several broad scale research show the exposure of long duration noise and the relation that hypertension is proportionate.Exposed 70 decibels to 90 decibels of noises 5 years, it obtains hypertensive danger up to 2.47 times.
Under high-frequency noise, common people have lather to noise, passionnate situation to the influence of psychology.Discover the operational site that noise is high more, accidental event is many more, and productivity is low more.
Existing muffler plate is mainly used in sound insulation, sound-absorbing, the main materials such as centrifugally glass-wool, paper perforation gypsum board that adopt, be mainly used in the sqouynd absorption lowering noise in the large spaces such as gymnasium, workshop, that sound absorbent can be made as requested is tabular, column, cone or other shaped bodies.Because the intensity of sheet material is not had specific (special) requirements, existing muffler plate can't be applied to the sound-deadening and noise-reducing of devices such as screening in the coal course of working, fragmentation, chute, material feeding point.
The model utility content
In view of this, the purpose of this utility model provides a kind of muffler plate, and this device can effectively reduce noise, improves working environment, and can satisfy the requirement of various working environments to timber intensity, enlarges using scope, prolongs the working life of equipment.
Technical solutions of the utility model realize with following method:
A kind of muffler plate wherein, mainly is made up of cast iron plate 1 and the rubber plate 2 that is arranged on cast iron plate 1 bottom.
Further, described cast iron plate 1 thickness is 2-5cm, and the thickness of rubber plate 2 is 0.5-2cm.
Further again, described cast iron plate 1 thickness is 3cm, and the thickness of rubber plate 2 is 1cm.
Further again, described cast iron plate 1 surface is provided with shallow slot 3.
Further again, described shallow slot 3 degree of depth are 0.5-1.5cm.
Further again, described shallow slot 3 degree of depth are 1cm.
Further again, described shallow slot 3 is rectangle groove or elliptical slot or circular trough.
The beneficial effects of the utility model are:
Because the utility model has adopted cast iron plate and rubber plate, cast iron plate compressive strength and hardness are near carbon steel, and damping property is good, is more suitable for the load that withstands shocks, good corrosion resistance; Simultaneously, shallow slot and Cast Iron Surface can be detained one deck coal dust in the using process, and this will help to weaken impact, and can cut down the noise that is produced by friction greatly.
Rubber plate has significant elasticity, can stand 100% distortion and unlikely destruction, and can return to original shape again rapidly after external force discharges, it is in light weight, and damping is big, can contact closely with object, reduce vibration frequency, thereby noise frequency decreases also.
Cast iron plate is hit and occurs bending and deformation and sink, compressing rubber plate generation elastic strain.Under continuous percussion, cast iron plate and rubber plate double vibrations are in this process, the internal friction loss of cast iron plate and rubber plate and and air between frictional loss, change mechanical energy into heat energy, effectively reduced noise frequency and power, can reduce noise 5-10dB.This muffler plate is simple in structure, can satisfy the requirement of various working environments to timber intensity, reduces the impact of material to equipment, greatly reduces the replacing frequency of equipment steel plate, has reduced cost, has improved the working life of equipment, has improved working environment simultaneously.
Description of drawings
Fig. 1 is a plan view of the present utility model.
Fig. 2 is the sectional view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is described further.
By Fig. 1 and Fig. 2 as can be seen, this muffler plate mainly is made up of cast iron plate 1 and the rubber plate 2 that is arranged on cast iron plate 1 bottom, four jiaos of cast iron plate 1 and the rubber plate 2 that is positioned at cast iron plate 1 bottom are provided with bolt hole, and cast iron plate 1 is fixedly installed togather by the bolt 4 that is screwed in the bolt hole with rubber plate 2.
It can also be seen that by Fig. 1 described cast iron plate 1 surface becomes the regularly arranged rectangle shallow slot 3 that is provided with of matrix.
During use, true form size according to equipment, design this muffler plate shape, by the bolt 4 on 2 four jiaos of cast iron plate 1 and the rubber plates this muffler plate is fixedly mounted on the equipment needed thereby then, during work, cast iron plate 1 is hit and occurs bending and deformation and sink, and elastic strains take place compressing rubber plate 2, under continuous percussion, cast iron plate 1 and rubber plate 2 double vibrationses, in this process, the frictional loss of cast iron plate 1 and rubber plate 2 and and air between frictional loss, change mechanical energy into heat energy, noise frequency and power have effectively been reduced, can reduce noise 5-10dB, this muffler plate is simple in structure, can satisfy the requirement of strength of various environment to sheet material, reduce the impact of material to equipment, greatly reduce the replacing frequency of equipment sheet material, in the working life of having improved equipment, greatly reduce cost.
Claims (7)
1, a kind of muffler plate is characterized in that: mainly be made up of cast iron plate (1) and the rubber plate (2) that is arranged on cast iron plate (1) bottom.
2, muffler plate according to claim 1 is characterized in that: described cast iron plate (1) thickness is 2-5cm, and the thickness of rubber plate (2) is 0.5-2cm.
3, muffler plate according to claim 1 is characterized in that: described cast iron plate (1) thickness is 3cm, and the thickness of rubber plate (2) is 1cm.
4, muffler plate according to claim 1 is characterized in that: described cast iron plate (1) surface is provided with shallow slot (3).
5, muffler plate according to claim 4 is characterized in that: described shallow slot (3) degree of depth is 0.5-1.5cm.
6, muffler plate according to claim 5 is characterized in that: described shallow slot (3) degree of depth is 1cm.
7, muffler plate according to claim 6 is characterized in that: described shallow slot (3) is rectangle groove or elliptical slot or circular trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200895069U CN201425079Y (en) | 2009-04-10 | 2009-04-10 | Muffler plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200895069U CN201425079Y (en) | 2009-04-10 | 2009-04-10 | Muffler plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425079Y true CN201425079Y (en) | 2010-03-17 |
Family
ID=42024525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200895069U Expired - Fee Related CN201425079Y (en) | 2009-04-10 | 2009-04-10 | Muffler plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425079Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180328A (en) * | 2011-04-15 | 2011-09-14 | 中煤邯郸设计有限责任公司 | Noise reduction and breaking prevention device at lump coal transshipment link |
| WO2014139323A1 (en) * | 2013-03-12 | 2014-09-18 | The Hong Kong University Of Science And Technology | Sound attenuating structures |
| CN107585725A (en) * | 2017-07-28 | 2018-01-16 | 苏州首达机械有限公司 | Silencing device |
-
2009
- 2009-04-10 CN CN2009200895069U patent/CN201425079Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180328A (en) * | 2011-04-15 | 2011-09-14 | 中煤邯郸设计有限责任公司 | Noise reduction and breaking prevention device at lump coal transshipment link |
| WO2014139323A1 (en) * | 2013-03-12 | 2014-09-18 | The Hong Kong University Of Science And Technology | Sound attenuating structures |
| CN105122348A (en) * | 2013-03-12 | 2015-12-02 | 香港科技大学 | Noise-absorbing structure |
| US9466283B2 (en) | 2013-03-12 | 2016-10-11 | The Hong Kong University Of Science And Technology | Sound attenuating structures |
| CN105122348B (en) * | 2013-03-12 | 2019-10-22 | 香港科技大学 | Noise-absorbing structure |
| CN107585725A (en) * | 2017-07-28 | 2018-01-16 | 苏州首达机械有限公司 | Silencing device |
| CN107585725B (en) * | 2017-07-28 | 2019-09-24 | 苏州首达机械有限公司 | silencing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20120410 |