CN203020418U - Noise-reduction carriage of engineering rescue vehicle - Google Patents
Noise-reduction carriage of engineering rescue vehicle Download PDFInfo
- Publication number
- CN203020418U CN203020418U CN 201220662555 CN201220662555U CN203020418U CN 203020418 U CN203020418 U CN 203020418U CN 201220662555 CN201220662555 CN 201220662555 CN 201220662555 U CN201220662555 U CN 201220662555U CN 203020418 U CN203020418 U CN 203020418U
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- carriage
- reduction
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Abstract
The utility model relates to a noise-reduction system, in particular to a noise-reduction carriage of an engineering rescue vehicle. The noise-reduction carriage of the engineering rescue vehicle comprises a carriage, a generator set is arranged on the middle portion of the carriage, an air inlet box is arranged at the front end of the carriage, an air exhaust box is arranged at the tail end of the carriage, and noise-reduction layers are arranged on the side walls around the carriage and on the ceiling. The noise-reduction carriage of the engineering rescue vehicle is simple in structure and obvious in noise-reduction effects, the problems of heat dissipation and noise reduction are solved simultaneously, and the requirement that the engineering rescue vehicle is environment-friendly is met.
Description
Technical field
The utility model relates to a kind of sound-deadening and noise-reducing system, relates in particular to a kind of breakdown lorry sound-deadening and noise-reducing system.
Background technology
Can produce huge noise during diesel-engine generator operation in breakdown lorry or power supply vehicle of meet an emergency compartment, the Main Noise Sources of diesel powerplant has fan noise, exhaust roar, roughness noise, mechanical noise and electromagnetic noise etc.Fan noise is periodically to be impacted the noise of air particle generation by the blade of rotation, and generally take mid-frequency noise as main, when bavin Shan machine was equipped with noise silencer, fan noise was important noise source.Exhaust roar is the noise that bavin Shan machine freeing pipe produces when discharging the high temperature and high speed pulse pneumatic, and the frequency of exhaust roar is take low frequency as main, and relevant with load, rotating speed.Roughness noise is that the structural vibration that causes in the gas in the jar that produces of mixer burning is passed to Internal Combustion Engine by outside and internal delivery approach, and by the Internal Combustion Engine radiation formation.Mechanical noise is the effect of inertia due to gaseous tension and parts, make between the relative motion part to produce and clash into and vibration alternately changes and causes some mechanical part or spatial volume vibration and produce, generally the noise of generator set is 105 decibels under without the noise reduction disposition, and the healthy of people worked the mischief.The engineering truck sound-deadening and noise-reducing compartment noise reduction of prior art is not good enough, and not only noise is large due to the diesel-engine generator in the compartment, and cal val is large, and therefore, result of ventilating heat dissipation also will be considered in the sound-deadening and noise-reducing compartment of breakdown lorry when considering sound-deadening and noise-reducing.
It is a kind of by ventilation inlet noise elimination road, diesel powerplant radiator that publication number is that the Chinese patent of CN2471620 discloses, the noise reducing box for diesel power generator on board that the air exhausting soundproofing road forms, it is characterized in that at the bottom of the compartment that there is ventilation inlet at the bottom of car at place, air intake noise elimination road, radiator and air exhausting soundproofing road have additional the air exhausting soundproofing bend pipe, the one end is connected with the unit radiator, and the other end puts in the air exhausting soundproofing road.Its weak point is: compartment wall and ceiling are not taked soundproof measures, and noise reduction is poor.
The utility model content
In order to overcome the defective of prior art, it is a kind of simple in structure that the utility model provides, the breakdown lorry sound-deadening and noise-reducing compartment that noise reduction and heat dispersion are good.
In order to realize the foregoing invention purpose, the technical solution of the utility model is: a kind of breakdown lorry sound-deadening and noise-reducing compartment, comprise: the compartment, middle part, described compartment is provided with generator set, the compartment front end is provided with inlet box, the compartment tail end is provided with air exhaust box, and described compartment surrounding sidewall and ceiling are provided with the noise reduction layer.
Preferably, also be provided with the heat insulation noise reduction layer of generator set in described compartment, described heat insulation noise reduction layer is between generator set and air exhaust box.
Preferably, described noise reduction layer comprises noise-reducing sponge, is provided with the punching web plate above noise-reducing sponge, is provided with cold-rolling steel below noise-reducing sponge.
Preferably, described noise-reducing sponge thickness is 55-65mm, and the punching net plate thickness is 0.6-1.0mm, and cold-rolling steel thickness is 1.0-1.5mm.
Breakdown lorry sound-deadening and noise-reducing carriage body construction of the present utility model is simple, noise reduction is obvious, has solved simultaneously heat radiation and the noise reduction problem of generator set, makes vehicle reach the requirement of environmental protection.
Description of drawings
Fig. 1 is the structural representation after the utility model carriage ceiling is opened;
Fig. 2 is the utility model noise reduction layer structural representation.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, breakdown lorry sound-deadening and noise-reducing of the present utility model compartment is done and illustrated.
Breakdown lorry sound-deadening and noise-reducing of the present utility model compartment comprises: compartment 1, and middle part, described compartment is provided with generator set 4, and the compartment front end is provided with inlet box 2, and the ventilation inlet of described inlet box 2 is located at car bottom, and the compartment tail end is provided with air exhaust box 5.Described compartment surrounding sidewall and ceiling are provided with noise reduction layer 6.Also be provided with the heat insulation noise reduction layer 3 of generator set in described compartment 1, described heat insulation noise reduction layer 3 can play the effect of sound insulation between generator set 4 and air exhaust box 5, can move again radiating airflow and pass through.Described noise reduction layer 6 is combined by 3 layers of material, comprising: noise-reducing sponge 7; Be positioned at the punching web plate 9 of noise-reducing sponge top; Be positioned at the cold-rolling steel 8 of noise-reducing sponge below, noise-reducing sponge 7 thickness are 60mm, and punching web plate 9 thickness are 0.8mm, and cold-rolling steel 8 thickness are 1.2mm.
Breakdown lorry sound-deadening and noise-reducing of the present utility model compartment adopts omnibearing noise reduction strategies, and the noise reduction layer is set on railroad car lateral wall and ceiling, and heat insulation noise reduction layer is set between air exhaust box and generator set, takes into account simultaneously generator heat-radiation and noise reduction.In the situation that without noise reduction measure, the noise of generator set reaches 105 decibels of left and right, after having adopted noise reduction of the present utility model compartment, the noise that can experience outside the compartment is only 72 decibels of left and right.
Claims (4)
1. breakdown lorry sound-deadening and noise-reducing compartment comprises: the compartment, and middle part, described compartment is provided with generator set, and the compartment front end is provided with inlet box, and the compartment tail end is provided with air exhaust box, it is characterized in that, and described compartment surrounding sidewall and ceiling are provided with the noise reduction layer.
2. breakdown lorry sound-deadening and noise-reducing according to claim 1 compartment, is characterized in that, also be provided with the heat insulation noise reduction layer of generator set in described compartment, described heat insulation noise reduction layer is between generator set and air exhaust box.
3. breakdown lorry sound-deadening and noise-reducing according to claim 1 compartment, is characterized in that, described noise reduction layer comprises noise-reducing sponge, and the noise-reducing sponge top is provided with the punching web plate, and the noise-reducing sponge below is provided with cold-rolling steel.
4. breakdown lorry sound-deadening and noise-reducing according to claim 3 compartment, is characterized in that, described noise-reducing sponge thickness is 55-65mm, and the punching net plate thickness is 0.6-1.0mm, and cold-rolling steel thickness is 1.0-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220662555 CN203020418U (en) | 2012-12-05 | 2012-12-05 | Noise-reduction carriage of engineering rescue vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220662555 CN203020418U (en) | 2012-12-05 | 2012-12-05 | Noise-reduction carriage of engineering rescue vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203020418U true CN203020418U (en) | 2013-06-26 |
Family
ID=48644419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220662555 Expired - Fee Related CN203020418U (en) | 2012-12-05 | 2012-12-05 | Noise-reduction carriage of engineering rescue vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203020418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106088702A (en) * | 2016-07-26 | 2016-11-09 | 张玉国 | Disappear sound insulation booth structure |
-
2012
- 2012-12-05 CN CN 201220662555 patent/CN203020418U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106088702A (en) * | 2016-07-26 | 2016-11-09 | 张玉国 | Disappear sound insulation booth structure |
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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: 20130626 Termination date: 20131205 |