CN204175400U - The special exhaust silencer of engineering machine vehicle - Google Patents
The special exhaust silencer of engineering machine vehicle Download PDFInfo
- Publication number
- CN204175400U CN204175400U CN201420585134.XU CN201420585134U CN204175400U CN 204175400 U CN204175400 U CN 204175400U CN 201420585134 U CN201420585134 U CN 201420585134U CN 204175400 U CN204175400 U CN 204175400U
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- Prior art keywords
- end cap
- housing
- dividing plate
- diffusing tube
- plate
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Abstract
The utility model discloses the special exhaust silencer of a kind of engineering machine vehicle, it is characterized in that, upper end cap and lower end cap is welded respectively at the two ends of housing, enclosure interior is divided into two-part by dividing plate, near the parallel installation air inlet in lower end cap side diffusing tube between lower end cap with dividing plate, its import is through housing and extraneous contact, the other end closes, flange plate is arranged on the entrance point of air inlet diffusing tube, inside upper end cap, install web plate, between web plate and dividing plate, at right angle setting is given vent to anger diffusing tube, and its one end closes, the other end is that ox horn shape passes housing, with extraneous contact.By above setting, the utility model maintains the effective advantage of common resistance exhaust silencer centering, low frequency silencing noise, and air-flow by repeatedly to turn to and repeatedly vent to the elimination of high-frequency noise, the noise that motor is produced well is eliminated, and has better practical effect.
Description
Technical field
The utility model relates to engineering machine vehicle engine exhaust muffler, is the special exhaust silencer of a kind of engineering machine vehicle specifically.
Background technique
At present, existing engine exhaust muffler mainly adopts the resistance exhaust silencer structure of pipeline section expansion and cross-sectional constriction, utilize sound wave in the change of abrupt change of cross-section place due to acoustic reactance, some sound wave goes back to sound source reflects, and not by the outlet of silencing apparatus, thus reach the object of noise elimination.This resistance exhaust silencer centering, low-frequency silencing noise effect are better.And for high frequency noise, due to the perforation pipeline section good to high frequency noise soundproof effect of employing and the negligible amounts of perforated plate, and the inner resistive sound-absorbing material that layout is not good to high frequency noise acoustically effective, therefore undesirable to the soundproof effect of high frequency noise.
Summary of the invention
The purpose of this utility model be to provide a kind of to full rate noise especially high band silencing noise the effective and special exhaust silencer of the engineering machine vehicle of good practical effect.
For reaching above object, the utility model welds upper end cap and lower end cap respectively at the two ends of housing, enclosure interior is divided into two-part by dividing plate, near the parallel installation air inlet in lower end cap side diffusing tube between lower end cap with dividing plate, its import is through housing and extraneous contact, the other end closes, flange plate is arranged on the entrance point of air inlet diffusing tube, inside upper end cap, web plate is installed, between web plate and upper end cap, fill up glass fibre, between web plate and dividing plate, at right angle setting is given vent to anger diffusing tube, and its one end closes, the other end is that ox horn shape passes housing, with extraneous contact.
By above setting, the utility model maintains the effective advantage of common resistance exhaust silencer centering, low frequency silencing noise, and air-flow by repeatedly to turn to and repeatedly vent to the elimination of high-frequency noise, the noise that motor is produced well is eliminated, and has better practical effect.
Accompanying drawing explanation
Now by reference to the accompanying drawings the utility model is described further.
Fig. 1 is structural representation of the present utility model.
In figure: 1, housing, 2, upper end cap, 3, lower end cap, 4, dividing plate, 5, air inlet diffusing tube, 6, flange plate, 7, web plate, 8, glass fibre, 9, diffusing tube of giving vent to anger.
Embodiment
As shown in Figure 1, the utility model welds upper end cap 2 and lower end cap 3 respectively at the two ends of housing 1, housing 1 inside is divided into two-part by dividing plate 4, near the parallel installation air inlet in lower end cap 3 side diffusing tube 5 between lower end cap 3 with dividing plate 4, its import is through housing 1 and extraneous contact, the other end closes, flange plate 6 is arranged on the entrance point of air inlet diffusing tube 5, web plate 7 is installed inside upper end cap 2, glass fibre 8 is filled up between web plate 7 and upper end cap 2, between web plate 7 and dividing plate 4, at right angle setting is given vent to anger diffusing tube 9, its one end closes, the other end is that ox horn shape is through housing 1, with extraneous contact.
By above setting, noise of the present utility model is entered through air inlet diffusing tube 5 from engine exhaust pipe, by the vent on air inlet diffusing tube 5, enter between lower end cap 3 and dividing plate 4, eliminate the basic, normal, high audio-frequency noise of part, the transformation in noise direction simultaneously and the vibration friction at little vent, eliminate part high-frequency noise.Noise enters between web plate 7 and dividing plate 4 by the Process on dividing plate 4 again, due to the vibration rubbing action by breeder tube on dividing plate 4, eliminate part high-frequency noise, simultaneously by glass fibre 8, eliminate part high-frequency noise, again through to give vent to anger diffusing tube 9, due to turning to and friction near little vent of noise, eliminate part high-frequency noise again.
Claims (1)
1. the special exhaust silencer of engineering machine vehicle, it is characterized in that: weld upper end cap and lower end cap respectively at the two ends of housing, enclosure interior is divided into two-part by dividing plate, near the parallel installation air inlet in lower end cap side diffusing tube between lower end cap with dividing plate, its import is through housing and extraneous contact, the other end closes, flange plate is arranged on the entrance point of air inlet diffusing tube, inside upper end cap, web plate is installed, glass fibre is filled up between web plate and upper end cap, between web plate and dividing plate, at right angle setting is given vent to anger diffusing tube, its one end closes, the other end is that ox horn shape is through housing, with extraneous contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585134.XU CN204175400U (en) | 2014-10-11 | 2014-10-11 | The special exhaust silencer of engineering machine vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585134.XU CN204175400U (en) | 2014-10-11 | 2014-10-11 | The special exhaust silencer of engineering machine vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175400U true CN204175400U (en) | 2015-02-25 |
Family
ID=52564216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420585134.XU Active CN204175400U (en) | 2014-10-11 | 2014-10-11 | The special exhaust silencer of engineering machine vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175400U (en) |
-
2014
- 2014-10-11 CN CN201420585134.XU patent/CN204175400U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170331 Address after: 262200 Shandong City, Weifang Province Zhucheng Lishan Road, No. 11 Patentee after: Shandong aytek environmental Polytron Technologies Inc Address before: 262200 Shandong city of Weifang Province Zhucheng Longdu City Industrial Park Patentee before: Zhucheng Haidewei Machine Co., Ltd. |
|
| TR01 | Transfer of patent right |