CN112412576A - Silencer for vehicle noise, vibration and sound vibration roughness test - Google Patents
Silencer for vehicle noise, vibration and sound vibration roughness test Download PDFInfo
- Publication number
- CN112412576A CN112412576A CN202011204424.1A CN202011204424A CN112412576A CN 112412576 A CN112412576 A CN 112412576A CN 202011204424 A CN202011204424 A CN 202011204424A CN 112412576 A CN112412576 A CN 112412576A
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- Prior art keywords
- sleeved
- sleeve
- plate
- silencer
- welded
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a silencer for vehicle noise, vibration and sound vibration roughness tests, which comprises a silencer shell, a first silencing pipe, a first fixing hole, a first sound-insulating disc, a second sound-insulating disc, a clamping component, a connecting component, a second silencing pipe and a second fixing hole, wherein the first fixing hole is formed in one end of the silencer shell, the first silencing pipe is sleeved in the first fixing hole, the first sound-insulating disc is welded on one side of the inner wall of the silencer shell, which is positioned at the center, the first sound-insulating disc is sleeved on the outer side of the other end of the first silencing pipe, the second fixing hole is formed in the other end of the silencer shell, the second silencing pipe is sleeved in the second fixing hole, the second sound-insulating disc is welded on the other side of the inner wall of the silencer shell, which is positioned at the center, the silencer for the vehicle noise, vibration and sound vibration roughness tests is simple in structure and is more tightly connected, the installation is dismantled conveniently, makes things convenient for silencer shell maintenance and change, is favorable to the user to use.
Description
Technical Field
The invention relates to the technical field of silencers, in particular to a silencer for a vehicle noise, vibration and sound vibration roughness test.
Background
The automobile silencer is mainly used for reducing the noise generated when the engine of a motor vehicle works, and the principle is that an automobile exhaust pipe is composed of two pipelines with different lengths, the two pipelines are separated and then converged, and the length difference of the two pipelines is equal to half of the wavelength of sound waves emitted by an automobile, so that two rows of sound waves are interfered with each other when being superposed to weaken the sound intensity, the transmitted sound is reduced, and the silencing effect is achieved; the traditional automobile silencer is connected with an automobile exhaust pipe and is connected with the automobile exhaust pipe through bolts when being installed, the bolts are connected for a long time and easily generate a thread slipping phenomenon, so that the fixation is not firm, the bolts are troublesome to connect, install and disassemble, the maintenance and the replacement of the automobile silencer are not facilitated for users, and the traditional automobile silencer is easy to shake and impact due to airflow during testing, so that the damage phenomenon is easy to occur, and the service life of the automobile silencer is shortened; in view of these drawbacks, it is necessary to design a muffler for vehicle noise, vibration, and harshness tests.
Disclosure of Invention
The invention aims to provide a silencer for testing noise, vibration and harshness of vehicle vibration, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a silencer for vehicle noise, vibration and sound vibration roughness tests comprises a silencer shell, an exhaust end, a first silencing pipe, a first fixing hole, a first sound-insulating disc, sound scattering holes, a second sound-insulating disc, a clamping assembly, a connecting assembly, a second silencing pipe and a second fixing hole, wherein the first fixing hole is formed in one end of the silencer shell, the first silencing pipe is sleeved in the first fixing hole, the first sound-insulating disc is welded on one side of the inner wall of the silencer shell, located at the center, of the silencer shell, the first sound-insulating disc is sleeved on the outer side of the other end of the first silencing pipe, the second fixing hole is formed in the other end of the silencer shell, the second silencing pipe is sleeved in the second fixing hole, the second sound-insulating disc is welded on the other side of the inner wall of the silencer shell, located at the center, of the inner wall of the silencer shell, and sleeved on the outer side of the second sound-insulating disc, the sound scattering holes are formed in the surfaces of the first silencing, the sound scattering holes are positioned in the silencer shell, the clamping components are arranged on two sides of the top of the silencer shell, which are positioned at the center, and each clamping component consists of a bearing plate, a second baffle disc, a second threaded rod, a second nut sleeve, a threaded hole, a semicircular clamping plate, a connecting plate, a top plate, a supporting plate, a first spring sleeve, a second spring sleeve and a compression spring, the bearing plates are welded on two sides of the top of the silencer shell, the supporting plate is fixed at one end of each bearing plate through screws, the supporting plate is positioned at the top of the silencer shell, the second threaded rod is welded on one side of the top of the supporting plate, the connecting plate is sleeved at the top of the second threaded rod, the threaded hole is formed in one end of the connecting plate, the threaded hole is sleeved outside the second threaded rod, the second nut sleeve is sleeved at the top of the second threaded rod, the, the semicircular clamping plate is internally and fixedly provided with a plurality of second spring sleeves through screws, the second spring sleeves are internally and sleeved with compression springs, the bottoms of the compression springs are sleeved with first spring sleeves, the bottoms of the first spring sleeves are fixedly provided with top plates through screws, the top plates are positioned at the bottoms of the semicircular clamping plates, one ends of the second silencing pipes are provided with connecting assemblies, each connecting assembly consists of an inner sleeve, a semicircular clamping plate, a first baffle disc, a first threaded rod, an L-shaped clamping plate, a first nut sleeve, a fixing plate, a central hole, a rubber pad, a sponge pad and an anti-slip sleeve, one end of each second silencing pipe is welded with an inner sleeve, the two sides of one end of each second silencing pipe are welded with fixing plates, one end of each fixing plate is provided with a central hole, the inside of the central hole is sleeved with a first threaded rod, the bottoms of the first threaded, the anti-skidding cover has been cup jointed to semicircle cardboard bottom, first nut cover has been cup jointed at first threaded rod top, and first nut cover is located the fixed plate top, the welding of fixed plate top has L shape cardboard, and L shape cardboard cup joints in the first nut cover outside.
Furthermore, protective sleeves are sleeved on two sides of the silencer shell, and dustproof thin films are laid on the outer side of the silencer shell.
Furthermore, an exhaust end is welded at one end of the first silencing pipe, and a plurality of exhaust holes are formed in one side of the exhaust end.
Furthermore, the bottom of the semicircular clamping plate is sleeved with a spongy cushion, and the spongy cushion is sleeved inside the antiskid sleeve.
Furthermore, a spring groove is formed in the center of the first spring sleeve and the center of the second spring sleeve, and the spring groove is sleeved on the outer side of the compression spring.
Furthermore, a second stop plate is welded to the top of the second threaded rod and is located at the top of the second nut sleeve.
Furthermore, the welding of first threaded rod top has first fender dish, and first fender dish is located L-shaped cardboard top.
Furthermore, one side of the second silencing pipe is sleeved with a rubber pad, and the rubber pad is positioned on the outer side of the inner sleeve.
Compared with the prior art, the invention has the following beneficial effects: the silencer for the vehicle noise, vibration and sound vibration roughness test has simple structure and convenient operation, abandons the traditional mode of connecting the silencer shell by adopting a bolt sleeve joint mode, adopts the mode of screwing the first nut sleeve to enable the semicircular clamping plate and the inner sleeve pipe to be tightly connected, simultaneously adopts the mode of screwing the second nut sleeve to enable the semicircular clamping plate and the supporting plate to be tightly clamped with the automobile chassis to fix the silencer shell at the bottom of the vehicle, has convenient installation and disassembly, is convenient for the maintenance and the replacement of the silencer shell, is favorable for users to use, simultaneously, when the silencer for the vehicle noise, vibration and sound vibration roughness test uses the airflow vibration to cause the silencer shell to shake, the compression spring has elasticity by contraction, counteracts the shaking of the silencer shell, avoids the silencer shell from shaking, impacting and damaging, is favorable for protecting the silencer shell, prolongs the service life of the silencer, is beneficial to reducing noise.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the present invention;
FIG. 3 is a schematic view of the inner casing structure of the present invention;
FIG. 4 is a side view of the inner sleeve construction of the present invention;
FIG. 5 is a schematic view of the clamp assembly of the present invention;
FIG. 6 is an enlarged detail view of the compression spring of the present invention;
in the figure: 1. a muffler housing; 2. an exhaust end; 3. a first silencer duct; 4. a first fixing hole; 5. a first acoustic panel; 6. a sound dispersion hole; 7. a second sound-insulating disc; 8. a clamping assembly; 9. a connecting assembly; 10. a second muffler pipe; 11. a second fixing hole; 12. an inner sleeve; 13. a semicircular clamping plate; 14. a first catch tray; 15. a first threaded rod; 16. an L-shaped clamping plate; 17. a first nut sleeve; 18. a fixing plate; 19. a central bore; 20. a rubber pad; 21. a sponge cushion; 22. an anti-slip sleeve; 23. a bearing plate; 24. a second catch tray; 25. a second threaded rod; 26. a second nut sleeve; 27. a threaded hole; 28. a semicircular clamping plate; 29. a connecting plate; 30. a top plate; 31. a support plate; 32. a first spring housing; 33. a second spring housing; 34. compressing the spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a silencer for testing the noise, vibration and sound vibration roughness of a vehicle comprises a silencer shell 1, an exhaust end 2, a first silencing pipe 3, a first fixing hole 4, a first sound-insulating disc 5, a sound diffusing hole 6, a second sound-insulating disc 7, a clamping assembly 8, a connecting assembly 9, a second silencing pipe 10 and a second fixing hole 11, wherein two sides of the silencer shell 1 are respectively sleeved with a protective sleeve, a dustproof film is paved on the outer side of the silencer shell 1 to protect the silencer shell 1, one end of the silencer shell 1 is provided with the first fixing hole 4, the first silencing pipe 3 is sleeved in the first fixing hole 4, one end of the first silencing pipe 3 is welded with the exhaust end 2, one side of the exhaust end 2 is provided with a plurality of exhaust holes to facilitate exhaust, one side of the inner wall of the silencer shell 1, which is positioned at the center, is welded with the first sound-insulating disc 5, and the first sound-insulating disc 5 is sleeved on the outer side of the other end, the other end of the silencer shell 1 is provided with a second fixing hole 11, a second silencing pipe 10 is sleeved inside the second fixing hole 11, the other side of the inner wall of the silencer shell 1, which is positioned at the center, is welded with a second sound-insulating disc 7, the second sound-insulating disc 7 is sleeved outside the second silencing pipe 10, the surfaces of the first silencing pipe 3 and the second silencing pipe 10 are provided with a plurality of sound scattering holes 6, the sound scattering holes 6 are positioned inside the silencer shell 1, the two sides of the top of the silencer shell 1, which are positioned at the center, are provided with clamping components 8, each clamping component 8 comprises a bearing plate 23, a second blocking disc 24, a second threaded rod 25, a second nut sleeve 26, a threaded hole 27, a semicircular clamping plate 28, a connecting plate 29, a top plate 30, a supporting plate 31, a first spring sleeve 32, a second spring sleeve 33 and a compression spring 34, the two sides of the top of the silencer shell 1, which is positioned at the center, are both welded with bearing, the supporting plate 31 is positioned at the top of the silencer shell 1, one side of the top of the supporting plate 31 is welded with a second threaded rod 25, the top of the second threaded rod 25 is sleeved with a connecting plate 29, one end of the connecting plate 29 is provided with a threaded hole 27, the threaded hole 27 is sleeved outside the second threaded rod 25, the top of the second threaded rod 25 is sleeved with a second nut sleeve 26, the second nut sleeve 26 is positioned at the top of the connecting plate 29, the top of the second threaded rod 25 is welded with a second baffle disc 24, the second baffle disc 24 is positioned at the top of the second nut sleeve 26 to facilitate the fixation of the second threaded rod 25, one end of the connecting plate 29 is welded with a semicircular clamping plate 28, the semicircular clamping plate 28 is internally fixed with a plurality of second spring sleeves 33 through screws, the second spring sleeves 33 are internally sleeved with compression springs 34, the bottoms of the compression springs 34 are sleeved with first spring sleeves 32, and the, and the spring groove is sleeved outside the compression spring 34, which is beneficial to fixing the compression spring 34, the bottom of the first spring sleeve 32 is fixed with a top plate 30 through screws, the top plate 30 is positioned at the bottom of the semicircular clamping plate 28, one end of the second silencing tube 10 is provided with a connecting assembly 9, the connecting assembly 9 is composed of an inner sleeve 12, a semicircular clamping plate 13, a first baffle disc 14, a first threaded rod 15, an L-shaped clamping plate 16, a first nut sleeve 17, a fixing plate 18, a central hole 19, a rubber pad 20, a spongy cushion 21 and an anti-slip sleeve 22, one end of the second silencing tube 10 is welded with the inner sleeve 12, one side of the second silencing tube 10 is sleeved with the rubber pad 20, the rubber pad 20 is positioned outside the inner sleeve 12, which is beneficial to connecting the second silencing tube 10, both sides of one end of the second silencing tube 10 are welded with the fixing plates 18, one end of the fixing plate 18 is provided with the central hole, the semicircular clamping plate 13 is positioned on the outer side of the inner sleeve 12, the bottom of the semicircular clamping plate 13 is sleeved with the anti-skidding sleeve 22, the bottom of the semicircular clamping plate 13 is sleeved with the spongy cushion 21, the spongy cushion 21 is sleeved inside the anti-skidding sleeve 22, fixing of the semicircular clamping plate 13 is facilitated, the top of the first threaded rod 15 is sleeved with the first nut sleeve 17, the first nut sleeve 17 is positioned on the top of the fixing plate 18, the top of the fixing plate 18 is welded with the L-shaped clamping plate 16, the L-shaped clamping plate 16 is sleeved on the outer side of the first nut sleeve 17, the top of the first threaded rod 15 is welded with the first baffle disc 14, and the first baffle disc 14 is positioned on the top of the L-; when the silencer for testing the noise, vibration and sound vibration roughness of the vehicle is used, an automobile exhaust pipe for testing is manually sleeved on the outer side of an inner sleeve 12, a first nut sleeve 17 is rotated clockwise, the first nut sleeve 17 is rotated to drive a first threaded rod 15 to descend, the first threaded rod 15 extrudes a semicircular clamping plate 13 until the semicircular clamping plate 13 and the inner sleeve 12 clamp the automobile exhaust pipe for testing, then a silencer shell 1 is arranged at the bottom of the vehicle, a semicircular clamping plate 28 and a supporting plate 31 are clamped on a cross beam of a chassis of the vehicle, a second nut sleeve 26 is rotated clockwise, a second nut sleeve 26 is rotated to extrude a connecting plate 29, the connecting plate 29 descends to drive the semicircular clamping plate 28 to descend until the semicircular clamping plate 28 and the supporting plate 31 clamp the chassis of the vehicle, fixing is completed, the automobile exhaust enters the silencer shell 1 from a second silencing pipe 10, and is silenced through a sound scattering hole 6, a first sound, the silencer is discharged from the first silencing pipe 3, the test can be started after the assembly is completed, when the silencer for the vehicle noise, vibration and sound vibration roughness test uses airflow vibration to cause the silencer shell 1 to shake, the silencer shell 1 drives the bearing plate 23 to shake, the bearing plate 23 drives the semicircular clamping plate 28 to extrude the compression spring 34, and the compression spring 34 contracts to have elasticity to offset the shake.
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.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a vehicle noise, vibration and roughness test of harmony shakes and uses silencer, includes silencer shell (1), exhaust end (2), first hush pipe (3), first fixed orifices (4), first syllable-dividing dish (5), scattered sound hole (6), second hush pipe (10) and second fixed orifices (11), its characterized in that: one end of the silencer shell (1) is provided with a first fixing hole (4), a first silencing pipe (3) is sleeved in the first fixing hole (4), one side of the inner wall of the silencer shell (1) at the center is welded with a first sound insulation disc (5), the first sound insulation disc (5) is sleeved outside the other end of the first silencing pipe (3), the other end of the silencer shell (1) is provided with a second fixing hole (11), a second silencing pipe (10) is sleeved in the second fixing hole (11), the other side of the inner wall of the silencer shell (1) at the center is welded with a second sound insulation disc (7), the second sound insulation disc (7) is sleeved outside the second silencing pipe (10), a plurality of sound scattering holes (6) are formed in the surfaces of the first silencing pipe (3) and the second silencing pipe (10), and the sound scattering holes (6) are located in the silencer shell (1), the silencer is characterized in that clamping components (8) are mounted on two sides of the top of the silencer shell (1) located at the center, each clamping component (8) is composed of a bearing plate (23), a second baffle disc (24), a second threaded rod (25), a second nut sleeve (26), a threaded hole (27), a semicircular clamping plate (28), a connecting plate (29), a top plate (30), a supporting plate (31), a first spring sleeve (32), a second spring sleeve (33) and a compression spring (34), the bearing plates (23) are welded on two sides of the top of the silencer shell (1) located at the center, one end of each bearing plate (23) is fixed with the corresponding supporting plate (31) through screws, the corresponding supporting plate (31) is located at the top of the silencer shell (1), the second threaded rod (25) is welded on one side of the top of the corresponding supporting plate (31), the connecting plate (29) is sleeved at the top of the second threaded rod (25), and screw hole (27) cup joint in second threaded rod (25) outside, second nut cover (26) has been cup jointed at second threaded rod (25) top, and second nut cover (26) is located connecting plate (29) top, connecting plate (29) one end welding has semicircle splint (28), semicircle splint (28) are inside to be had a plurality of second spring housing (33) through the screw fixation, compression spring (34) have been cup jointed to second spring housing (33) inside, first spring housing (32) have been cup jointed to compression spring (34) bottom, first spring housing (32) bottom has roof (30) through the screw fixation, and roof (30) are located semicircle splint (28) bottom, coupling assembling (9) are installed to second hush pipe (10) one end, coupling assembling (9) are by interior sleeve (12), semicircle cardboard (13), first fender dish (14), The damping device comprises a first threaded rod (15), an L-shaped clamping plate (16), a first nut sleeve (17), a fixing plate (18), a center hole (19), a rubber pad (20), a spongy cushion (21) and an anti-skidding sleeve (22), wherein an inner sleeve (12) is welded at one end of a second silencing pipe (10), the fixing plate (18) is welded on both sides of one end of the second silencing pipe (10), the center hole (19) is formed in one end of the fixing plate (18), the first threaded rod (15) is sleeved in the center hole (19), a semicircular clamping plate (13) is welded at the bottom of the first threaded rod (15), the semicircular clamping plate (13) is positioned outside the inner sleeve (12), the anti-skidding sleeve (22) is sleeved at the bottom of the semicircular clamping plate (13), the first nut sleeve (17) is sleeved at the top of the first threaded rod (15), and the first nut sleeve (17) is positioned at the top, the top of the fixed plate (18) is welded with an L-shaped clamping plate (16), and the L-shaped clamping plate (16) is sleeved outside the first nut sleeve (17).
2. The muffler for vehicle noise, vibration and harshness testing as claimed in claim 1, wherein: the silencer shell (1) both sides have all been cup jointed the protective sheath, and the silencer shell (1) outside has laid dustproof film.
3. The muffler for vehicle noise, vibration and harshness testing as claimed in claim 1, wherein: an exhaust end (2) is welded at one end of the first silencing pipe (3), and a plurality of exhaust holes are formed in one side of the exhaust end (2).
4. The muffler for vehicle noise, vibration and harshness testing as claimed in claim 1, wherein: the bottom of the semicircular clamping plate (13) is sleeved with a spongy cushion (21), and the spongy cushion (21) is sleeved inside the antiskid sleeve (22).
5. The muffler for vehicle noise, vibration and harshness testing as claimed in claim 1, wherein: spring grooves are formed in the centers of the first spring sleeve (32) and the second spring sleeve (33), and the spring grooves are sleeved on the outer side of the compression spring (34).
6. The muffler for vehicle noise, vibration and harshness testing as claimed in claim 1, wherein: and a second baffle disc (24) is welded at the top of the second threaded rod (25), and the second baffle disc (24) is positioned at the top of the second nut sleeve (26).
7. The muffler for vehicle noise, vibration and harshness testing as claimed in claim 1, wherein: a first blocking disc (14) is welded to the top of the first threaded rod (15), and the first blocking disc (14) is located on the top of the L-shaped clamping plate (16).
8. The muffler for vehicle noise, vibration and harshness testing as claimed in claim 1, wherein: one side of the second silencing pipe (10) is sleeved with a rubber pad (20), and the rubber pad (20) is positioned on the outer side of the inner sleeve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011204424.1A CN112412576A (en) | 2020-11-02 | 2020-11-02 | Silencer for vehicle noise, vibration and sound vibration roughness test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011204424.1A CN112412576A (en) | 2020-11-02 | 2020-11-02 | Silencer for vehicle noise, vibration and sound vibration roughness test |
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| Publication Number | Publication Date |
|---|---|
| CN112412576A true CN112412576A (en) | 2021-02-26 |
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| CN202011204424.1A Pending CN112412576A (en) | 2020-11-02 | 2020-11-02 | Silencer for vehicle noise, vibration and sound vibration roughness test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117189312A (en) * | 2023-08-30 | 2023-12-08 | 泰州长力树脂管有限公司 | Anti-interference heating urea pipe |
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| US20050082113A1 (en) * | 2003-09-09 | 2005-04-21 | Honda Motor Co., Ltd. | Exhaust device |
| CN201377347Y (en) * | 2009-01-24 | 2010-01-06 | 哈尔滨艾瑞汽车排气系统有限公司 | Multi-cavity labyrinth dissipation type silencer |
| CN202431336U (en) * | 2012-01-11 | 2012-09-12 | 比亚迪股份有限公司 | Automotive exhaust silencer |
| US8636103B1 (en) * | 2012-08-10 | 2014-01-28 | Hyundai Motor Company | Muffler for vehicle |
| CN202811011U (en) * | 2012-10-16 | 2013-03-20 | 海口通达排气系统有限公司 | Main muffler with no sound-absorbing cotton |
| CN103644013A (en) * | 2013-11-21 | 2014-03-19 | 桂林福冈新材料有限公司 | Automobile muffler |
| CN205135753U (en) * | 2015-10-28 | 2016-04-06 | 湛江市华夏消声器有限公司 | Novel vehicle energy saving exhaust muffler device |
| CN206267916U (en) * | 2016-10-25 | 2017-06-20 | 力帆实业(集团)股份有限公司 | Automobile main muffler |
| CN208219460U (en) * | 2018-04-16 | 2018-12-11 | 河北莎诺环保科技有限公司 | A kind of noise shielding environmental protection equipment |
| CN209560422U (en) * | 2019-03-12 | 2019-10-29 | 威海职业学院 | A kind of built-in hard disk bracing means of computer |
| CN210320677U (en) * | 2019-04-17 | 2020-04-14 | 温州日进汽车部件有限公司 | Water heater business turn over water pipe end cap |
| CN110307352A (en) * | 2019-06-03 | 2019-10-08 | 浙江创安液压科技有限公司 | A kind of supplying valve |
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| CN117189312A (en) * | 2023-08-30 | 2023-12-08 | 泰州长力树脂管有限公司 | Anti-interference heating urea pipe |
| CN117189312B (en) * | 2023-08-30 | 2024-02-20 | 泰州长力树脂管有限公司 | Anti-interference heating urea pipe |
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Application publication date: 20210226 |