Noise reduction device for train supercharger

Abstract

The utility model discloses a noise reduction device for a train supercharger, and belongs to the technical field of noise reduction of superchargers, the noise reduction device for the train supercharger comprises a supercharger body, a connecting disc is fixed at the outer end of the supercharger body, and a protective sleeve is sleeved outside the supercharger body. The connecting disc drives the inserting rod to move into the mounting disc, a piston in the mounting disc can be pushed to move, so that gas in the gas cylinder is pushed into the gas bag to expand the gas bag, the gas bag can be inflated while the protecting sleeve is mounted outside the supercharger body, and the gas bag wraps the supercharger body. According to the supercharger, the shaking amplitude of the supercharger body in the working process is reduced, noise generated by the supercharger body is reduced fundamentally, the noise reduction effect on the supercharger body is improved, meanwhile, noise reduction is further conducted through the noise reduction plate and the annular noise reduction plate, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction of superchargers, and more specifically to a noise reduction device for a train supercharger. Background Art

[0002] Supercharger, namely engine intake supercharger, compresses the air before entering the engine cylinder to increase the density of the air, so that more air can be filled into the cylinder, thereby increasing the engine power. Supercharger is installed on the train engine to increase the output power of the engine. During the operation of the existing turbocharger body, the internal air passes through the blades to rotate at high speed, which will cause the entire turbocharger body to vibrate, which will not only generate noise, but also affect the people in the car. At this time, a noise reduction device for a train supercharger is needed to reduce the noise generated during the operation of the supercharger.

[0003] The current noise reduction device for train superchargers, such as the "Noise Reduction Device for Turbochargers" proposed in patent number 202321230817.9, includes a shell and a noise reduction device, and the noise reduction device includes an airbag plate, a cover plate and sound-absorbing cotton. The utility model provides a noise reduction device for a turbocharger. When the device needs to be used for noise reduction, the airbag plate inside the shell is first passed. During use, the surface of the airbag plate vibrates with the noise generated, and then the noise vibration can be buffered under the action of the elastic force of the airbag plate. Then, the noise can be reduced by setting the sound-absorbing cotton. The airbag plate can better absorb noise by using rubber material. Vibration can be reduced by setting a damper, and the device can be more stable by setting a support seat. Finally, the outer wall of the airbag plate is connected to a water pipe, and then the water pipe is connected to a cold water tank. A refrigeration sheet is set in the cold water tank to cool it. Make work more convenient and improve work efficiency. Increase the service life of the turbocharger.

[0004] The existing noise reduction device for train superchargers is achieved by sleeve-mounting a shell on the outside of the supercharger, and using airbag plates and silencer cotton for cushioning, shock absorption and sound absorption. Although the purpose of noise reduction can be achieved, in actual use, the supercharger is prone to generate noise when in use, and it also vibrates. The shell is cushioned and shock-absorbed by damping springs and airbag plates, but the supercharger body cannot be limited. The supercharger is prone to shake in the shell, and the noise reduction effect of the supercharger cannot be further improved. Therefore, there is an urgent need to improve the technology of the structure of the noise reduction device for train superchargers to improve this equipment. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a noise reduction device for a train supercharger, which can be realized when the noise reduction device for a train supercharger is used, the supercharger body is moved into the protective cover, and the connecting plate drives the insertion rod to move into the mounting plate, which can push the piston in the mounting plate to move, thereby pushing the gas in the cylinder into the airbag to expand it, and the airbag can be inflated while the protective cover is installed on the outside of the supercharger body, so that the airbag is wrapped around the outside of the supercharger body, reducing the shaking amplitude of the supercharger body during operation, reducing the noise emitted by the supercharger body at the root, and improving the noise reduction effect of the supercharger body. At the same time, the sound absorbing plate and the annular noise reduction plate are used to further reduce the noise, which is convenient to use.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A noise reduction device for a train supercharger comprises a supercharger body, a connecting plate being fixed to the outer end of the supercharger body, a protective sleeve being provided on the outer side of the supercharger body, a mounting plate being connected to the end of the protective sleeve close to the connecting plate, an air bag being embedded at the inner wall of the protective sleeve, the air bag being inflated in the protective sleeve by an inflation mechanism, a silencer being connected to the inner wall of the protective sleeve close to the air outlet of the supercharger body, an annular noise reduction plate being connected to the end of the silencer plate close to the supercharger body, an exhaust pipe being provided at the right wall of the protective sleeve, a threaded rod being connected to the inner thread of the mounting plate, the connecting plate and the mounting plate being limit-mounted by the threaded rod, an anti-loosening mechanism being provided on the outside of the threaded rod, and the threaded rod being prevented from rotating randomly in the mounting plate by anti-loosening.

[0010] Furthermore, an insertion rod is fixedly connected to one end of the connecting disk close to the mounting disk, an insertion rod groove is provided at one end of the mounting disk corresponding to the insertion rod, an air cylinder is embedded in the interior of the mounting disk, the air cylinder is connected to the insertion rod groove, a piston is slidably connected to the interior of the air cylinder, a damping spring is fixedly connected between the piston and the inner wall of the air cylinder, a connecting pipe is connected to the side end of the airbag, and the other end of the connecting pipe is connected to the air cylinder.

[0011] Furthermore, the cross-sections of the insertion rod and the insertion rod groove are circular, and the centers of the cross-sections of the insertion rod and the insertion rod groove coincide with each other.

[0012] Furthermore, the silencer plate is made of stainless steel metal, and a plurality of silencer holes are provided on the surface of the silencer plate.

[0013] Furthermore, a nut is sleeved on the outer end of the threaded rod, a spring washer is provided between the nut and the mounting plate, the spring washer is sleeved on the outside of the threaded rod, a first notch is provided at the side end of the nut, a second notch is provided at one end of the threaded rod corresponding to the first notch, and a plug is connected inside the first notch and the second notch.

[0014] Furthermore, the plug block and the first notch and the second notch form a locking structure through interference fit, and a frosted layer is provided at the mutual contact points between the plug block and the first notch and the second notch.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] (1) According to the utility model, the supercharger body is moved into the protective cover, and the connecting plate drives the insertion rod to move into the mounting plate, which can push the piston in the mounting plate to move, thereby pushing the gas in the cylinder into the airbag to expand it. When the protective cover is installed on the outside of the supercharger body, the airbag can be inflated, so that the airbag is wrapped around the outside of the supercharger body, reducing the shaking amplitude of the supercharger body during operation, reducing the noise emitted by the supercharger body at the source, and improving the noise reduction effect of the supercharger body. At the same time, the silencer plate and the annular noise reduction plate are used to further reduce the noise, which is convenient for use.

[0018] (2) According to the utility model, when the supercharger body moves into the protective sleeve and the connecting plate moves to one side of the mounting plate, the connecting plate and the mounting plate can be limited and fixed by the threaded rod, and then the nut and the spring washer are sleeved on the outside of the threaded rod, the nut is rotated, and the spring washer is squeezed until the first notch is aligned with the second notch, and then the plug can be inserted into the first notch and the second notch, thereby limiting the rotation direction of the threaded rod, preventing the threaded rod from loosening and falling off due to the vibration of the supercharger body, and improving the installation effect of the threaded rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0021] Figure 3 For this utility model Figure 1 Schematic diagram of the local enlarged structure at point B in the middle.

[0022] Description of the numbers in the figure:

[0023] 1. Supercharger body; 2. Connecting plate; 3. Protective cover; 4. Mounting plate; 5. Rod; 6. Rod slot; 7. Air cylinder; 8. Piston; 9. Damping spring; 10. Air bag; 11. Connecting pipe; 12. Silencer; 13. Annular noise reduction plate; 14. Exhaust pipe; 15. Threaded rod; 16. Nut; 17. Spring washer; 18. First notch; 19. Second notch; 20. Block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0025] Example:

[0026] See also Figure 1-3 A noise reduction device for a train supercharger comprises a supercharger body 1, a connecting plate 2 is fixed to the outer end of the supercharger body 1, a protective sleeve 3 is provided on the outer sleeve of the supercharger body 1, an end of the protective sleeve 3 close to the connecting plate 2 is connected to a mounting plate 4, an airbag 10 is embedded at the inner wall of the protective sleeve 3, the airbag 10 is inflated in the protective sleeve 3 by an inflation mechanism, a silencer 12 is connected to the inner wall of the protective sleeve 3 close to the air outlet of the supercharger body 1, an annular noise reduction plate 13 is connected to the end of the silencer 12 close to the supercharger body 1, an exhaust pipe 14 is provided at the right wall of the protective sleeve 3, a threaded rod 15 is connected to the inner thread of the mounting plate 4, the connecting plate 2 and the mounting plate 4 are limitedly installed by the threaded rod 15, an anti-loosening mechanism is provided on the outside of the threaded rod 15, and the threaded rod 15 is prevented from rotating freely in the mounting plate 4 by anti-loosening.

[0027] The supercharger body 1 is moved into the protective cover 3, and the connecting plate 2 drives the insertion rod 5 to move into the mounting plate 4, which can push the piston 8 in the mounting plate 4 to move, thereby pushing the gas in the cylinder 7 into the airbag 10 to expand it. When the protective cover 3 is installed on the outside of the supercharger body 1, the airbag 10 can be inflated, so that the airbag 10 is wrapped around the outside of the supercharger body 1, reducing the shaking amplitude of the supercharger body 1 during operation, reducing the noise emitted by the supercharger body 1 at the source, and improving the noise reduction effect of the supercharger body 1. At the same time, the silencer plate 12 and the annular noise reduction plate 13 are used to further reduce noise, which is convenient for use.

[0028] See also Figure 1 and Figure 3, an end of the connecting disk 2 close to the mounting disk 4 is fixedly connected with an insertion rod 5, an end of the mounting disk 4 corresponding to the insertion rod 5 is provided with an insertion rod groove 6, an air cylinder 7 is embedded in the interior of the mounting disk 4, the air cylinder 7 is connected with the insertion rod groove 6, a piston 8 is slidably connected inside the air cylinder 7, a damping spring 9 is fixedly connected between the piston 8 and the inner wall of the air cylinder 7, a connecting pipe 11 is connected to the side end of the airbag 10, the other end of the connecting pipe 11 is connected to the air cylinder 7, the cross-section of the insertion rod 5 and the insertion rod groove 6 is circular, the center of the cross-section of the insertion rod 5 and the insertion rod groove 6 coincides, the silencer 12 is made of stainless steel metal, and a plurality of silencer holes are provided on the surface of the silencer 12, through which the continuous reflection of noise can be absorbed, thereby reducing noise.

[0029] See also Figure 1-2 A nut 16 is sleeved on the outer end of the threaded rod 15, and a spring washer 17 is provided between the nut 16 and the mounting plate 4. The spring washer 17 is sleeved on the outside of the threaded rod 15, and a first notch 18 is provided at the side end of the nut 16. A second notch 19 is provided at one end of the threaded rod 15 corresponding to the first notch 18. A plug 20 is plugged into the inside of the first notch 18 and the second notch 19. The plug 20 and the first notch 18 and the second notch 19 form a snap-fit ​​structure through interference fit. A frosted layer is provided at the contact between the plug 20 and the first notch 18 and the second notch 19. By providing a frosted layer at the contact between the plug 20 and the first notch 18 and the second notch 19, the friction between the plug 20 and the first notch 18 and the second notch 19 is increased, so as to prevent the plug 20 from being moved out of the first notch 18 and the second notch 19 at will.

[0030] In the present utility model, when using the device, the technicians in the related field move the supercharger body 1 into the protective sleeve 3, so that the connecting plate 2 moves to one side of the mounting plate 4, and the connecting plate 2 and the mounting plate 4 are limited and fixed by the threaded rod 15, and then the nut 16 and the spring washer 17 are sleeved on the outside of the threaded rod 15, and the nut 16 is rotated to squeeze the spring washer 17 until the first notch 18 is aligned with the second notch 19, and then the plug 20 can be inserted into the first notch 18 and the second notch 19, so as to limit the rotation direction of the threaded rod 15, and prevent the threaded rod 15 from loosening and falling off due to the vibration of the supercharger body 1.

[0031] At the same time, the movement of the connecting disk 2 can drive the insertion rod 5 to move into the mounting disk 4, and can push the piston 8 in the mounting disk 4 to move, thereby pushing the gas in the cylinder 7 into the airbag 10 to expand it. When the protective sleeve 3 is installed on the outside of the supercharger body 1, the airbag 10 can be inflated, so that the airbag 10 is wrapped around the outside of the supercharger body 1, reducing the shaking amplitude of the supercharger body 1 during operation, reducing the noise emitted by the supercharger body 1 at the source, and improving the noise reduction effect of the supercharger body 1. At the same time, the silencer plate 12 and the annular noise reduction plate 13 are used to further reduce noise, which is convenient for use.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise reduction device for a train supercharger, comprising a supercharger body (1), characterized in that: A connection plate (2) is fixed to the outer end of the supercharger body (1), a protective sleeve (3) is provided on the outer side of the supercharger body (1), one end of the protective sleeve (3) close to the connection plate (2) is connected to a mounting plate (4), an air bag (10) is embedded in the inner wall of the protective sleeve (3), the air bag (10) is inflated by an inflation mechanism in the protective sleeve (3), a muffler plate (12) is connected to the inner wall of the protective sleeve (3) close to the air outlet of the supercharger body (1), The end of the silencer plate (12) close to the supercharger body (1) is connected to an annular noise reduction plate (13); an exhaust pipe (14) is provided on the right wall of the protective sleeve (3); a threaded rod (15) is connected to the inner thread of the mounting plate (4); the connection plate (2) and the mounting plate (4) are limitedly mounted by the threaded rod (15); an anti-loosening mechanism is provided on the outside of the threaded rod (15); and the threaded rod (15) is prevented from rotating freely in the mounting plate (4) by anti-loosening.

2. A noise reduction device for a train supercharger according to claim 1, characterized in that: The inflation mechanism comprises an insertion rod (5), an insertion rod groove (6), an air cylinder (7), a piston (8), a damping spring (9) and a connecting pipe (11); the end of the connecting plate (2) close to the mounting plate (4) is fixedly connected with the insertion rod (5); the mounting plate (4) is provided with an insertion rod groove (6) at one end corresponding to the insertion rod (5); the mounting plate (4) is embedded with an air cylinder (7) inside; the air cylinder (7) is connected with the insertion rod groove (6); the interior of the air cylinder (7) is slidably connected with a piston (8); a damping spring (9) is fixedly connected between the piston (8) and the inner wall of the air cylinder (7); the side end of the air bag (10) is connected with a connecting pipe (11); the other end of the connecting pipe (11) is connected with the air cylinder (7).

3. A noise reduction device for a train supercharger according to claim 2, characterized in that: The cross-sections of the insertion rod (5) and the insertion rod groove (6) are circular, and the centers of the cross-sections of the insertion rod (5) and the insertion rod groove (6) coincide with each other.

4. The noise reduction device for a train supercharger according to claim 1, characterized in that: The silencer plate (12) is made of stainless steel metal, and a plurality of silencer holes are provided on the surface of the silencer plate (12).

5. The noise reduction device for a train supercharger according to claim 1, characterized in that: The anti-loosening mechanism comprises a nut (16), a spring washer (17), a first notch (18), a second notch (19) and a plug (20); the outer end of the threaded rod (15) is sleeved with the nut (16); a spring washer (17) is arranged between the nut (16) and the mounting plate (4); the spring washer (17) is sleeved on the outside of the threaded rod (15); a first notch (18) is provided at the side end of the nut (16); a second notch (19) is provided at one end of the threaded rod (15) corresponding to the first notch (18); and the plugs (20) are plugged inside the first notch (18) and the second notch (19).

6. A noise reduction device for a train supercharger according to claim 5, characterized in that: The plug (20) and the first notch (18) and the second notch (19) form a snap-fit ​​structure through interference fit, and a frosted layer is provided at the mutual contact points between the plug (20) and the first notch (18) and the second notch (19).

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