CN211524927U

CN211524927U - Diesel engine silencing device

Info

Publication number: CN211524927U
Application number: CN201921007308.3U
Authority: CN
Inventors: 全民刚; 李立军; 姚秋
Original assignee: Hubei Langtong Power Technology Co ltd
Current assignee: Hubei Langtong Power Technology Co ltd
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-09-18
Anticipated expiration: 2029-07-01

Abstract

The utility model discloses a diesel engine silencing device, including the whistle box, the air intake duct has been run through in the left side of whistle box, the inner chamber intercommunication of whistle box has the amortization pipeline, the inner chamber packing of whistle box has the buffering cotton, the utility model relates to an engine amortization technical field. This diesel engine silencing device, the admission line is connected with the engine exhaust end, a large amount of tail gases that have violent noise let in the amortization pipeline along the admission line, vibrations are cushioned through the cotton first layer of buffering in the amortization pipeline, offset the noise that partly vibrations produced, and remaining vibrations drive the amortization case vibrations, the transmission through the fixed block turns into violent vibrations the shrink of making a round trip of reset spring, the violent noise that produces when can effectively offset engine exhaust tail gas, diesel engine in use exhaust pipe exhaust waste gas also can produce a large amount of noises, there is not the problem of good means of making an uproar of falling to exhaust waste gas.

Description

Diesel engine silencing device

Technical Field

The utility model relates to an engine amortization technical field specifically is a diesel engine silencing device.

Background

The diesel engine has the advantages of high power and good economic performance, the working process of the diesel engine has many same places as that of the gasoline engine, each working cycle also goes through four strokes of air intake, compression, work application and exhaust, but because the fuel for the diesel engine is diesel oil, the viscosity of the diesel oil is larger than that of the gasoline, the diesel oil is not easy to evaporate, and the self-ignition temperature of the diesel oil is lower than that of the gasoline, the formation and ignition modes of combustible mixed gas are different from those of the gasoline engine, the difference is mainly that the mixed gas in a cylinder of the diesel engine is compression-ignited rather than ignited, the air entering the cylinder when the diesel engine works is air, when the air in the cylinder is compressed to the end point, the temperature can reach 500 ℃ and 700 ℃, the pressure can reach 40-50 atmospheric pressures, when a piston approaches to the top dead point, a high-pressure pump on the engine injects high pressure into the cylinder, the diesel oil forms fine oil, the diesel oil mixture gas is combusted automatically and expands violently to generate explosive force to push the piston to do work downwards, the temperature can reach 1900-2000 ℃, the pressure can reach 60-100 atmospheric pressures, and the generated power is very high, so that the diesel engine is widely applied to large diesel automobiles.

Diesel engine can produce violent noise in use, and the majority of making an uproar falls to diesel engine in prior art often just adopts amortization cover to separate diesel engine and gives sound insulation, though can play the effect that gives sound insulation, but the heat that diesel engine produced gives off and does not go out, can lead to diesel engine's life-span sharp reduction, and diesel engine in use blast pipe exhaust waste gas also can produce a large amount of noises moreover, and exhaust waste gas does not have the good means of making an uproar of falling.

SUMMERY OF THE UTILITY MODEL

The utility model provides a diesel engine silencing device has solved and has adopted the amortization cover to separate diesel engine and give sound insulation, though can play syllable-dividing effect, but the heat that diesel engine produced gives off and does not go out, can lead to diesel engine's life-span sharp reduction, and diesel engine in use blast pipe exhaust waste gas also can produce a large amount of noises moreover, and exhaust waste gas does not have the problem of the means of making an uproar of well falling.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a silencing device of a diesel engine comprises a silencing box, wherein an air inlet pipeline penetrates through the left side of the silencing box, the inner cavity of the sound-deadening box is communicated with a sound-deadening pipeline, the inner cavity of the sound-deadening box is filled with buffer cotton, the right end of the air inlet pipeline is communicated with the left end of the silencing pipeline, the bottom of the silencing box is fixedly connected with a buffer box, the inner chamber fixedly connected with connecting block of baffle-box, the equal sliding connection in both sides of connecting block inner chamber has first slider, two the equal fixedly connected with reset spring in one side that first slider is relative, two the surface of first slider all rotates and is connected with the connecting rod, two the inner chamber of connecting block is all run through to the one end that the connecting rod was carried on the back mutually and extends to the top of connecting block, two the surface of connecting rod all with the inner chamber sliding connection of connecting block, the bottom fixedly connected with connecting block of whistle box.

Preferably, the inner cavity of the connecting block is provided with a sliding groove, the inner surface of the sliding groove is connected with a second sliding block in a sliding mode, and the bottom of the second sliding block is rotatably connected with one end, far away from the connecting block, of the connecting rod.

Preferably, an air outlet pipeline penetrates through the right side of the sound attenuation box, and the left end of the air outlet pipeline is communicated with the right end of the sound attenuation pipeline.

Preferably, the bottom end of the gas outlet pipeline is in threaded connection with a waste residue collecting cylinder, and the gas outlet pipeline is arranged to be spiral.

Preferably, the surface of the air outlet pipeline is communicated with an air outlet pipeline, one end, far away from the air outlet pipeline, of the air outlet pipeline is communicated with an air exhaust barrel, and a filter screen is fixedly connected to the inner cavity of the air outlet pipeline.

Preferably, the surface of the exhaust cylinder is provided with a plurality of exhaust holes which are uniformly distributed on the surface of the exhaust cylinder.

Advantageous effects

The utility model provides a diesel engine silencing device. Compared with the prior art, the method has the following advantages

Has the advantages that:

(1) the diesel engine silencing device is characterized in that an air inlet pipeline penetrates through the left side of a silencing box, an inner cavity of the silencing box is communicated with a silencing pipeline, buffering cotton is filled in the inner cavity of the silencing box, the right end of the air inlet pipeline is communicated with the left end of the silencing pipeline, the bottom of the silencing box is fixedly connected with a buffering box, the inner cavity of the buffering box is fixedly connected with a connecting block, two sides of the inner cavity of the connecting block are respectively and slidably connected with a first sliding block, one opposite side of the two first sliding blocks is respectively and fixedly connected with a reset spring, the surfaces of the two first sliding blocks are respectively and rotatably connected with a connecting rod, the opposite ends of the two connecting rods respectively penetrate through the inner cavity of the connecting block and extend to the upper part of the connecting block, the surfaces of the two connecting rods are respectively and slidably connected with the inner cavity of the connecting block, the bottom of the silencing, vibrations in the amortization pipeline are cushioned through the cotton first layer of buffering, offset the noise that partly vibrations produced to remaining vibrations drive the amortization box vibrations, the transmission through the fixed block turns into violent vibrations and contracts back and forth of reset spring, can effectively offset the violent noise that produces when engine exhaust tail gas, solved diesel engine in use exhaust pipe exhaust waste gas also can produce a large amount of noises, do not have the problem of the good means of making an uproar of falling to exhaust waste gas.

(2) This diesel engine silencing device, there is the waste residue surge drum through the bottom threaded connection at the pipeline of giving vent to anger, and the pipeline of giving vent to anger sets up to the spiral, the surface intercommunication of the pipeline of giving vent to anger has exhaust duct, and exhaust duct keeps away from the one end intercommunication of the pipeline of giving vent to anger there is the aiutage, exhaust duct's inner chamber fixedly connected with filter screen, through the waste gas of making an uproar of falling the transport of the pipeline of giving vent to anger, through spiral rotatory, waste residue striking in the waste gas gives vent to anger the pipeline inner chamber, lose power under the blockking of filter screen through the transport of waste gas, in the pipeline landing of giving vent to anger advances the waste residue surge drum, can prevent effectively.

Drawings

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

FIG. 2 is a front view of the structure of the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: 1-a sound-muffling box, 2-an air inlet pipeline, 3-a sound-muffling pipeline, 4-buffer cotton, 5-a buffer box, 6-a connecting block, 7-a first slide block, 8-a return spring, 9-a connecting rod, 10-a chute, 11-a second slide block, 12-an air outlet pipeline, 13-a waste residue collecting cylinder, 14-an air outlet pipeline, 15-an air outlet cylinder, 16-an air outlet hole, 17-a filter screen and 18-a fixed block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a diesel engine silencing device comprises a silencing box 1, an air outlet pipeline 12 penetrates through the right side of the silencing box 1, an exhaust pipeline 14 is communicated with the surface of the air outlet pipeline 12, an exhaust barrel 15 is communicated with one end, far away from the air outlet pipeline 12, of the exhaust pipeline 14, a plurality of exhaust holes 16 are formed in the surface of the exhaust barrel 15, the exhaust holes 16 are uniformly distributed in the surface of the exhaust barrel 15, generated waste gas is discharged through the exhaust holes 16 to enable the waste gas to disperse, a filter screen 17 is fixedly connected to the inner cavity of the exhaust pipeline 14, incompletely combusted residues are blocked by the filter screen 17 to prevent the incompletely combusted residues from being discharged into the air, a waste residue collecting barrel 13 is connected to the bottom end of the air outlet pipeline 12 in a threaded mode, the air outlet pipeline 12 is arranged in a spiral mode, the left end of the air outlet pipeline 12 is communicated with the right end of a silencing pipeline 3, the noise, waste residues in waste gas collide with an inner cavity of an air outlet pipeline 12, the waste gas is conveyed under the blocking of a filter screen 17 after losing power, and the waste gas slides into a waste residue collecting cylinder 13 along the air outlet pipeline 12, so that impurities completely unburnt in tail gas can be effectively prevented from being directly discharged into the air, the environmental protection of an engine silencer is improved, an air inlet pipeline 2 penetrates through the left side of a silencer box 1, the inner cavity of the silencer box 1 is communicated with a silencer pipeline 3, buffer cotton 4 is filled in the inner cavity of the silencer box 1, the buffer cotton 4 can effectively absorb the vibration of the silencer pipeline 3, the right end of the air inlet pipeline 2 is communicated with the left end of the silencer pipeline 3, the bottom of the silencer box 1 is fixedly connected with a buffer box 5, the inner cavity of the buffer box 5 is fixedly connected with a connecting block 6, two sides of the inner cavity of the connecting block 6 are both slidably connected with first sliding blocks, the surfaces of the two first sliding blocks 7 are rotatably connected with connecting rods 9, the back-to-back ends of the two connecting rods 9 extend through the inner cavity of the connecting block 6 and extend to the upper part of the connecting block 6, the surfaces of the two connecting rods 9 are slidably connected with the inner cavity of the connecting block 6, the bottom of the sound attenuation box 1 is fixedly connected with a fixed block 18, the inner cavity of the fixed block 18 is provided with a chute 10, the inner surface of the chute 10 is slidably connected with a second sliding block 11, the bottom of the second sliding block 11 is rotatably connected with one end, far away from the connecting block 6, of the connecting rod 9, the air inlet pipeline 2 is connected with the exhaust end of an engine, a large amount of tail gas with severe noise is introduced into the sound attenuation pipeline 3 along the air inlet pipeline 2, the vibration in the sound attenuation pipeline 3 is buffered by 4 first layers of buffer cotton, the noise generated by part of the vibration is counteracted, the, can effectively offset the violent noise generated when the engine discharges the tail gas, solves the problems that the exhaust gas discharged by the exhaust pipe can generate a large amount of noise when the diesel engine is in use, and the discharged exhaust gas has no good noise reduction means.

During operation, communicate admission line 2 and engine exhaust end, exhaust waste gas carries in the amortization pipeline 3 because the amortization pipeline 3 bore is great, waste gas is clashed to 3 inner walls of amortization pipeline in the inside, cancel vibrations through buffering cotton 5, 1 vibrations of amortization box drive fixed block 18 and push down this moment, fixed block 18 drives second slider 11 and slides in spout 10, it slides to drive connecting rod 9 and drive first slider 7 in connecting block 6, offset through reset spring 8 and reduce vibrations, the air after making an uproar falls into exhaust duct 14 through outlet duct 12, waste residue in the waste gas falls into waste residue surge drum 13 through blockking of filter screen 17, waste gas is discharged through exhaust hole 16 of aiutage 15.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a diesel engine silencing device, includes whistle box (1), inlet duct (2), its characterized in that have been run through in the left side of whistle box (1): the inner cavity of the sound-deadening box (1) is communicated with a sound-deadening pipeline (3), the inner cavity of the sound-deadening box (1) is filled with buffer cotton (4), the right end of the air inlet pipeline (2) is communicated with the left end of the sound-deadening pipeline (3), the bottom of the sound-deadening box (1) is fixedly connected with a buffer box (5), the inner cavity of the buffer box (5) is fixedly connected with a connecting block (6), two sides of the inner cavity of the connecting block (6) are respectively and slidably connected with a first sliding block (7), one opposite side of the two first sliding blocks (7) is respectively and fixedly connected with a reset spring (8), the surfaces of the two first sliding blocks (7) are respectively and rotatably connected with a connecting rod (9), one end of the two connecting rods (9) back to each other penetrates through the inner cavity of the connecting block (6) and extends to the upper part of the connecting block (6), the bottom of the sound muffling box (1) is fixedly connected with a fixed block (18).

2. The diesel engine muffler device as set forth in claim 1, wherein: the inner cavity of the fixing block (18) is provided with a sliding groove (10), the inner surface of the sliding groove (10) is connected with a second sliding block (11) in a sliding mode, and the bottom of the second sliding block (11) is rotatably connected with one end, far away from the connecting block (6), of the connecting rod (9).

3. The diesel engine muffler device as set forth in claim 1, wherein: an air outlet pipeline (12) penetrates through the right side of the sound attenuation box (1), and the left end of the air outlet pipeline (12) is communicated with the right end of the sound attenuation pipeline (3).

4. A diesel engine muffler assembly as set forth in claim 3, wherein: the bottom end of the gas outlet pipeline (12) is in threaded connection with a waste residue collecting cylinder (13), and the gas outlet pipeline (12) is spiral.

5. A diesel engine muffler assembly as set forth in claim 3, wherein: the surface of the air outlet pipeline (12) is communicated with an air outlet pipeline (14), one end, far away from the air outlet pipeline (12), of the air outlet pipeline (14) is communicated with an air exhaust barrel (15), and a filter screen (17) is fixedly connected to the inner cavity of the air outlet pipeline (14).

6. The silencing apparatus for a diesel engine as recited in claim 5, wherein: exhaust holes (16) are formed in the surface of the exhaust cylinder (15), and the exhaust holes (16) are arranged in a plurality and are uniformly distributed on the surface of the exhaust cylinder (15).