CN215672398U - Noise reduction device for mounting automobile engine - Google Patents

Abstract

The utility model discloses a noise reduction device for mounting an automobile engine, and relates to the technical field of engine noise reduction. Comprises a shell, a first fixing sleeve is screwed on the left side of the shell, a second fixing sleeve is connected on the right side of the shell, the first fixing sleeve and the second fixing sleeve are both connected with a gas collecting cylinder, the gas collecting cylinder is positioned in the shell, a gas inlet pipe is inserted in the first fixing sleeve and is connected with the gas collecting cylinder close to the gas inlet pipe, a gas outlet pipe is inserted in the second fixing sleeve in a penetrating way, the gas outlet pipe is in threaded connection with the gas collecting cylinder close to the gas outlet pipe, at least three silencing cylinders are arranged between the two gas collecting cylinders, two ends of each silencing cylinder are inserted in the gas collecting cylinders through flow dividing gas pipes, a plurality of vent holes are formed in the side walls of the silencing cylinders, a first noise reduction layer is connected on the inner side wall of the shell, a second noise reduction layer is fixedly connected on the outer side walls of the silencing cylinders, a third noise reduction layer is fixedly connected on the inner side walls of the gas collecting cylinders, therefore, the device can reduce the noise of the entering gas in four different stages, greatly enhance the noise reduction effect and effectively meet the environmental protection requirement.

Description

Noise reduction device for mounting automobile engine

Technical Field

The utility model relates to the technical field of engine noise reduction, in particular to a noise reduction device for mounting an automobile engine.

Background

The quantity of automobiles in China is getting larger and larger, people do not only need vehicles any more, but also need energy conservation, environmental protection, attractiveness and comfort of the automobiles. Traffic noise of motor vehicles is a major source of urban road noise, and noise regulations for automobiles will be increasingly stringent.

The prior art has the following defects: the existing noise reduction device has poor noise reduction effect and can not meet the requirement of environmental protection.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model aims to provide a noise reduction device for mounting an automobile engine, wherein a first noise reduction layer, a second noise reduction layer and a silencing cylinder can be protected and supported by arranging a shell, the first fixing sleeve and the second fixing sleeve are used for supporting and connecting gas cylinders on two sides, the gas cylinder at one end of a gas inlet pipe can be used for shunting the gas from the gas inlet pipe to each silencing cylinder, the gas cylinder at one end of a gas outlet pipe can be used for centralizing the gas in each silencing cylinder and the gas in the shell so as to be conveniently discharged from the gas outlet pipe, the third noise reduction layer on one side of the gas inlet pipe can be used for primarily reducing the noise of the gas which just enters the gas cylinders, the second noise reduction layer can be used for secondarily reducing the noise of the gas which enters the silencing cylinders, and the gas cylinders are shunted in the silencing cylinders so as to greatly improve the noise reduction effect of the second noise reduction layer on the gas, set up the air vent through the silencing barrel lateral wall and can flow into the casing inside through first noise reduction layer and carry out the third time noise reduction treatment, finally the gas that passes through the three times noise reduction treatment can be concentrated in the gas collecting barrel of outlet duct one side again through the third noise reduction layer and carry out noise reduction treatment, and then discharge through the outlet duct to this device falls the noise through the gas of quartic different stages to the entering, has strengthened noise reduction greatly, can effectually reach the environmental protection requirement.

The above object of the present invention is achieved by the following technical solutions:

a noise reduction device for mounting an automobile engine comprises a shell, wherein a first fixing sleeve is in threaded connection with the left side of the shell, a second fixing sleeve is in threaded connection with the right side of the shell, a gas collecting cylinder is fixedly connected with one side, close to each other, of the first fixing sleeve and the second fixing sleeve, the gas collecting cylinder is positioned in the shell, a gas inlet pipe is inserted into the first fixing sleeve in a penetrating manner, the gas inlet pipe extends into the gas collecting cylinder close to the gas inlet pipe and is in threaded connection with the gas collecting cylinder, a gas outlet pipe is inserted into the second fixing sleeve in a penetrating manner, the gas outlet pipe extends into the gas collecting cylinder close to the gas outlet pipe and is in threaded connection with the gas collecting cylinder, at least three silencing cylinders are arranged between the two gas collecting cylinders, two ends of each silencing cylinder are inserted into the gas collecting cylinder through flow distribution pipes, a plurality of air holes are formed in the side wall of each silencing cylinder, and a first noise reduction layer is fixedly connected to the inner side wall of the shell, the outer side wall of the silencing barrel is fixedly connected with a second noise reduction layer, and the inner side wall of the gas collecting barrel is fixedly connected with a third noise reduction layer.

Through adopting above-mentioned technical scheme, can be to the first layer of making an uproar that falls through setting up the casing, the layer and the noise reduction section of thick bamboo of making an uproar are protected to the second and are supported, the gas cylinder through first fixed cover and the fixed cover of second provides the support connection for the gas cylinder of both sides, the gas cylinder through intake pipe one end can be shunted the gas that comes from the intake pipe for each noise reduction section of thick bamboo, the gas cylinder through outlet duct one end can concentrate the gas in each noise reduction section of thick bamboo and the inside gas of casing thereby be convenient for discharge from the outlet duct, the layer of making an uproar can tentatively fall the noise to the gas that just gets into in the gas cylinder through the third layer of making an uproar that falls of intake pipe one side, and then fall the layer of making an uproar through the second and can fall the second to the inside gas that gets into the noise reduction section of thick bamboo, can improve the second greatly through the gas reposition of thick bamboo in a plurality of making an uproar in a plurality of noise reduction section of thick bamboo simultaneously and fall the effect of making an uproar the layer to gas, set up the air vent through the noise reduction section of a side wall of noise reduction section of a noise reduction section of thick bamboo can be flowed into the casing inside through the first layer of making an uproar and fall the third and fall the first noise reduction department of making an uproar and fall and make an uproar and fall the part of a noise The gas that finally falls the noise processing through the cubic can be concentrated in the gas collecting cylinder of outlet duct one side again and fall the noise processing through the third and fall the noise layer, and then discharge through the outlet duct to this device falls the noise through the gas of quartic different stages to the entering, has strengthened noise reduction greatly, can effectually reach the environmental protection requirement.

The present invention in a preferred example may be further configured to: the first noise reduction layer comprises a noise reduction layer, a sound absorption layer and a temperature-resistant layer, and the second noise reduction layer and the third noise reduction layer are the same as the first noise reduction layer in structure.

Through adopting above-mentioned technical scheme, can effectual improvement to the effect of making an uproar falls in automobile exhaust through noise damping layer, sound absorbing layer and temperature resistant layer, can effectively reduce the damage of gaseous high temperature to casing, noise damping section of thick bamboo volume gas collecting barrel simultaneously through the temperature resistant layer, improve its life.

The present invention in a preferred example may be further configured to: the lateral wall cover of first fixed cover is equipped with first buffer washer, first buffer washer is located first fixed cover with set up between the lateral wall of casing, the lateral wall cover of the fixed cover of second is equipped with second buffer washer, second buffer washer is located the fixed cover of second with set up between the lateral wall of casing.

Through adopting above-mentioned technical scheme, can avoid the rigid collision between first fixed cover or the fixed cover of second and the casing through first cushion washer and second cushion washer in normal use, protect first fixed cover, the fixed cover of second and safety that can to improve the life of each component, reduce the loss of cost.

The present invention in a preferred example may be further configured to: the first fixed cover inside wall fixedly connected with first sound-absorbing foam cylinder, first sound-absorbing foam cylinder cover is located the lateral wall of intake pipe, the sound-absorbing foam cylinder of the inside wall fixedly connected with second of the fixed cover of second, sound-absorbing foam cylinder cover is located the lateral wall of outlet duct.

Through adopting above-mentioned technical scheme, can fall the noise that advances tub vibration production through first sound foam section of thick bamboo of inhaling and fall the noise, inhale a sound foam section of thick bamboo through the second and can fall the noise that the outlet duct vibration produced and fall, inhale a sound foam section of thick bamboo through first sound foam section of thick bamboo and second simultaneously and can protect intake pipe and outlet duct.

The present invention in a preferred example may be further configured to: the noise reduction layer is made of noise reduction cotton, and the sound absorption layer is made of a mineral wool sound absorption plate.

By adopting the technical scheme, the silencing cotton and the mineral wool are convenient to purchase in actual use, the cost is lower, and the using effect is better.

In summary, the utility model includes at least one of the following beneficial technical effects:

1. the first noise reduction layer, the second noise reduction layer and the silencing cylinders can be protected and supported by the shell, the first fixing sleeve and the second fixing sleeve are used for supporting and connecting the gas collecting cylinders at two sides, the gas collecting cylinder at one end of the gas inlet pipe can shunt gas from the gas inlet pipe to each silencing cylinder, the gas collecting cylinder at one end of the gas outlet pipe can centralize gas in each silencing cylinder and gas in the shell so as to be conveniently discharged from the gas outlet pipe, the gas which just enters the gas collecting cylinder can be subjected to primary noise reduction by the third noise reduction layer at one side of the gas inlet pipe, further, the gas which enters the silencing cylinders can be subjected to secondary noise reduction by the second noise reduction layer, meanwhile, the gas is shunted in the plurality of silencing cylinders by the gas collecting cylinder, the noise reduction effect of the second noise reduction layer on the gas can be greatly improved, and part of the gas can flow into the shell by the vent holes arranged on the side walls of the silencing cylinders and is subjected to third noise reduction treatment by the first noise reduction layer, finally, the gas subjected to the three-time noise reduction treatment is concentrated in the gas collecting cylinder on one side of the gas outlet pipe, and is subjected to noise reduction treatment again through the third noise reduction layer, and then is discharged through the gas outlet pipe, so that the device is used for reducing noise of the entering gas in four different stages, the noise reduction effect is greatly enhanced, and the environmental protection requirement can be effectively met;

2. the first buffer washer and the second buffer washer can avoid rigid collision between the first fixing sleeve or the second fixing sleeve and the shell in the normal use process, and protect the first fixing sleeve, the second fixing sleeve and the shell, so that the service life of each component is prolonged, and the loss of cost is reduced;

3. noise that can go out into tub vibration production through the first sound foam section of thick bamboo of inhaling falls the noise, inhales a sound foam section of thick bamboo through the second and can fall the noise that the outlet duct vibration produced and make an uproar, inhales a sound foam section of thick bamboo through the first sound foam section of thick bamboo of inhaling and the second simultaneously and can protect intake pipe and outlet duct.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a first noise reduction layer of the present invention;

FIG. 3 is a schematic cross-sectional view of a second noise reduction layer of the present invention.

Reference numerals: 1. a housing; 2. a first fixing sleeve; 3. a second fixing sleeve; 4. a gas collecting cylinder; 5. an air inlet pipe; 6. an air outlet pipe; 7. a silencing barrel; 8. a gas distributing pipe; 9. a vent hole; 10. a first noise reduction layer; 11. a sound-deadening layer; 12. a sound absorbing layer; 13. a temperature resistant layer; 14. a second noise reduction layer; 15. a third noise reduction layer; 16. a first cushion washer; 17. a second cushion washer; 18. a first sound absorbing foam cylinder; 19. a second sound absorbing foam cylinder.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figure 1, the utility model provides a noise reduction device for mounting an automobile engine, which comprises a shell 1, wherein the shell 1 can effectively protect internal elements as a protection component, the left side of the shell 1 is in threaded connection with a first fixing sleeve 2, the right side of the shell 1 is in threaded connection with a second fixing sleeve 3, the shell 1 provides support for the first fixing sleeve 2 and the second fixing sleeve 3, the first fixing sleeve 2 and the second fixing sleeve 3 are both in threaded connection with the shell 1 for convenient disassembly, so that maintenance and repair of each component are facilitated, a gas collecting cylinder 4 is fixedly connected to one side, close to each other, of the first fixing sleeve 2 and the second fixing sleeve 3, preferably, the fixed connection mode of the gas collecting cylinder 4 and the first fixing sleeve 2 or the second fixing sleeve 3 can be realized through bolt connection, the gas collecting cylinder 4 is positioned in the shell 1 and provides support for the left gas collecting cylinder 4 through the first fixing sleeve 2, the right gas collecting cylinder 4 is supported by the second fixing sleeve 3, the first fixing sleeve 2 is inserted with a gas inlet pipe 5 in a penetrating way, the gas inlet pipe 5 extends into the gas collecting cylinder 4 close to the gas inlet pipe and is in threaded connection with the gas collecting cylinder 4, the gas inlet pipe 5 is convenient to mount and dismount through the threaded connection structure of the gas inlet pipe 5 and the gas collecting cylinder 4, the gas outlet pipe 6 is convenient to maintain the gas inlet pipe 5, the gas outlet pipe 6 extends into the gas collecting cylinder 4 close to the gas outlet pipe 6 and is in threaded connection with the gas collecting cylinder 4, the gas outlet pipe 6 is convenient to mount and dismount through the threaded connection structure of the gas outlet pipe 6 and the gas collecting cylinder 4, at least three silencing cylinders 7 are arranged between the two gas collecting cylinders 4, preferably, the three silencing cylinders 7 are selected as hinges in practical use, the two ends of the silencing cylinders 7 are inserted with the gas collecting cylinders 4 through the diversion pipes 8 on the two sides, the gas collecting cylinders 4 and the silencing cylinders 7 can be effectively connected through the diversion pipes 8 on the two sides, the mode of pegging graft is convenient for also dismantle noise tube 7 simultaneously, a plurality of air vents 9 have been seted up to noise tube 7 lateral wall, the first layer of making an uproar 10 of falling of 1 inside wall fixedly connected with of casing, the layer of making an uproar 14 is fallen to the 7 lateral wall fixedly connected with second of noise tube, the layer of making an uproar 15 is fallen to the inside wall fixedly connected with third of gas collecting vessel 4, through the first layer of making an uproar 10 of falling, the layer of making an uproar 14 and the third fall the layer of making an uproar 15 and can carry out the noise reduction treatment in four stages to gas in proper order, the noise reduction effect has been improved greatly.

As shown in fig. 2 and 3, the first noise reduction layer 10 includes a noise reduction layer 11, a sound absorption layer 12 and a temperature-resistant layer 13, the second noise reduction layer 14 and the third noise reduction layer 15 are all the same as the first noise reduction layer 10 in structure, the noise reduction effect on the automobile exhaust can be effectively improved through the noise reduction layer 11, the sound absorption layer 12 and the temperature-resistant layer 13, meanwhile, the damage of the high temperature of the gas to the casing 1 and the volume gas collecting cylinder 4 of the noise reduction cylinder 7 can be effectively reduced through the temperature-resistant layer 13, and the service life of the gas collecting cylinder is prolonged.

As shown in fig. 1, the outer sidewall of the first fixing sleeve 2 is sleeved with a first buffer washer 16, the first buffer washer 16 is disposed between the first fixing sleeve 2 and the outer sidewall of the housing 1, the outer sidewall of the second fixing sleeve 3 is sleeved with a second buffer washer 17, the second buffer washer 17 is disposed between the second fixing sleeve 3 and the outer sidewall of the housing 1, and the first buffer washer 16 and the second buffer washer 17 can avoid rigid collision between the first fixing sleeve 2 or the second fixing sleeve 3 and the housing 1 during normal use, so as to protect the first fixing sleeve 2, the second fixing sleeve 3 and safety, thereby improving the service life of each component and reducing the cost loss. The first sound foam section of thick bamboo 18 of inhaling of 2 inside wall fixedly connected with of first fixed cover, the lateral wall of intake pipe 5 is located to 18 covers of first sound foam section of thick bamboo, it can fall the noise that advances tub vibration production to go out through the first sound foam section of thick bamboo 18 of inhaling, sound foam section of thick bamboo 19 is inhaled to the inside wall fixedly connected with second of the fixed cover 3, the second is inhaled sound foam section of thick bamboo 19 covers and is located the lateral wall of outlet duct 6, inhale sound foam section of thick bamboo 19 through the second and can fall the noise that 6 vibrations of outlet duct produced and make an uproar, inhale sound foam section of thick bamboo 19 through first sound foam section of thick bamboo 18 and second simultaneously and can protect intake pipe 5 and outlet duct 6. The sound absorption layer 12 is made of a mineral wool sound absorption plate, and the sound absorption layer 11 is convenient to purchase in actual use through the sound absorption cotton and the mineral wool, low in cost and good in use effect.

The implementation principle of the embodiment is as follows: when in use, tail gas exhausted by an engine firstly enters the gas collecting barrel 4 at the left side from the gas inlet pipe 5, the entering gas is subjected to primary integral noise reduction through the third noise reduction layer 15, the tail gas is simultaneously divided into the plurality of noise reduction barrels 7 through the gas collecting barrel 4, the gas is subjected to secondary noise reduction through the second noise reduction layer 14 on the outer side wall of the noise reduction barrel 7, meanwhile, the gas entering the noise reduction barrel 7 is subjected to noise reduction through the vent holes 9 through the second noise reduction layer 14, then a part of the noise reduced gas is released to the outer side of the noise reduction barrel 7, further, the gas outside the noise reduction barrel 7 is subjected to secondary noise reduction through the first noise reduction layer 10, finally, the gas subjected to the previous noise reduction treatment enters the gas collecting barrel 4 at the right side through the noise reduction barrel 7, so that the fourth noise reduction of the gas is realized, the treated gas is exhausted through the gas outlet barrel connected with the gas collecting barrel 4 at the right side, so that the noise reduction of the tail gas at different stages is realized, greatly enhancing the noise reduction effect and effectively meeting the environmental protection requirement.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Claims (5)

1. A noise reduction device for automobile engine installation, includes casing (1), its characterized in that: the gas collecting device is characterized in that a first fixing sleeve (2) is in threaded connection with the left side of the shell (1), a second fixing sleeve (3) is in threaded connection with the right side of the shell (1), a gas collecting cylinder (4) is fixedly connected with one side, close to each other, of the first fixing sleeve (2) and the second fixing sleeve (3), the gas collecting cylinder (4) is located inside the shell (1), an air inlet pipe (5) is inserted in the first fixing sleeve (2) in a penetrating manner, the air inlet pipe (5) extends into the gas collecting cylinder (4) close to the air inlet pipe and is in threaded connection with the gas collecting cylinder (4), an air outlet pipe (6) is inserted in the second fixing sleeve (3) in a penetrating manner, the air outlet pipe (6) extends into the gas collecting cylinder (4) close to the air inlet pipe and is in threaded connection with the gas collecting cylinder (4), at least three silencing cylinders (7) are arranged between the two gas collecting cylinders (4), and two ends of the silencing cylinders (7) are in inserted connection with the gas collecting cylinder (4) through a flow distribution pipe (8), a plurality of air vents (9) are formed in the side wall of the silencing barrel (7), a first noise reduction layer (10) is fixedly connected to the inner side wall of the shell (1), a second noise reduction layer (14) is fixedly connected to the outer side wall of the silencing barrel (7), and a third noise reduction layer (15) is fixedly connected to the inner side wall of the gas collecting barrel (4).

2. A noise reducing device for an automobile engine mount according to claim 1, wherein: the first noise reduction layer (10) comprises a noise reduction layer (11), a sound absorption layer (12) and a temperature-resistant layer (13), and the second noise reduction layer (14) and the third noise reduction layer (15) are the same as the first noise reduction layer (10) in structure.

3. A noise reducing device for an automobile engine mount according to claim 1, wherein: the lateral wall cover of first fixed cover (2) is equipped with first buffer washer (16), first buffer washer (16) are located first fixed cover (2) with set up between the lateral wall of casing (1), the lateral wall cover of the fixed cover of second (3) is equipped with second buffer washer (17), second buffer washer (17) are located the fixed cover of second (3) with set up between the lateral wall of casing (1).

4. A noise reducing device for an automobile engine mount according to claim 1, wherein: first fixed cover (2) inside wall fixedly connected with first sound-absorbing foam section of thick bamboo (18), first sound-absorbing foam section of thick bamboo (18) cover is located the lateral wall of intake pipe (5), sound foam section of thick bamboo (19) are inhaled to the inside wall fixedly connected with second of the fixed cover of second (3), sound foam section of thick bamboo (19) cover is located to the second sound foam section of thick bamboo (19) the lateral wall of outlet duct (6).

5. A noise reducing device for an automobile engine mount according to claim 2, wherein: the sound absorption layer (12) is made of a mineral wool sound absorption plate.

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