Silencing variable-frequency gasoline engine generator silencer and production process

Abstract

The invention relates to the technical field of generator silencers, in particular to a mute variable-frequency gasoline engine generator silencer and a production process. Comprising an air inlet assembly, an installation assembly, a front end cover net plate, front end cover cotton, a silencer upper cover, an upper cover net plate, upper cover cotton, a silencer lower cover, a lower cover net plate, lower cover cotton, a front partition plate, a rear partition plate, a front silencing pipe, a plurality of plugs, a rear silencing pipe, a silencer rear end cover, a rear end cover net plate, rear end cover cotton, a silencing bag, silencing bag cotton, a silencing bag net plate and an air outlet pipe. The upper cover cotton is arranged between the silencer upper cover and the upper cover net plate, the lower cover cotton is arranged between the silencer lower cover and the lower cover net plate, the silencer upper cover is fixedly connected with the silencer lower cover, and the front partition plate and the rear partition plate are both connected with the upper cover net plate and the lower cover net plate. In this way, the technical problems that in the prior art, due to the fact that silencing cotton in a silencer is manually added into an interlayer, the number of the added silencing cotton cannot be guaranteed, and the uniformity is poor are solved.

Description

Technical Field

[0001] This invention relates to the field of generator muffler technology, and in particular to a silent variable frequency gasoline generator muffler and its manufacturing process. Background Technology

[0002] In today's society, with the increasing diversification of electricity demand and the continuous improvement of people's requirements for quality of life, gasoline generators, as a flexible and convenient power supply device, have been widely used in many fields, such as outdoor work, emergency rescue, camping activities, and temporary power supply in remote areas. As an important component of gasoline generators, the muffler's main function is to reduce the exhaust noise generated during generator operation, reduce noise pollution to the surrounding environment, and improve the user experience.

[0003] However, the sound-absorbing cotton in existing mufflers is added manually into the interlayer, which makes it impossible to guarantee the amount of sound-absorbing cotton added and results in poor uniformity. Summary of the Invention

[0004] The purpose of this invention is to provide a silent variable frequency gasoline generator muffler and its manufacturing process, aiming to solve the technical problem in the prior art where the sound-absorbing cotton inside the muffler is added manually into the interlayer, resulting in an inability to guarantee the amount of sound-absorbing cotton added and poor uniformity.

[0005] To achieve the above objectives, the present invention employs a silent variable frequency gasoline generator muffler, comprising an intake assembly, a mounting assembly, a front cover mesh plate, a front cover cotton, a muffler upper cover, an upper cover mesh plate, an upper cover cotton, a muffler lower cover, a lower cover mesh plate, a lower cover cotton, a front partition, a rear partition, a front muffler pipe, multiple plugs, a rear muffler pipe, a muffler rear end cover, a rear end cover mesh plate, a rear end cover cotton, a muffler housing, a muffler housing cotton, a muffler housing mesh plate, and an exhaust pipe. The upper cover cotton is disposed on the muffler upper cover and the exhaust pipe. Between the upper cover mesh plate, the lower cover cotton is disposed between the lower cover of the muffler and the lower cover mesh plate. The upper cover of the muffler is fixedly connected to the lower cover of the muffler. The front partition plate and the rear partition plate are both connected to the upper cover mesh plate and the lower cover mesh plate. The front muffler pipe and the rear muffler pipe are respectively disposed on the front partition plate and the rear partition plate. The front cover mesh plate is connected to the upper cover of the muffler and the lower cover of the muffler. The front cover cotton is disposed on the front cover mesh plate. The air intake assembly is disposed on the lower cover of the muffler, and multiple plugs are respectively disposed on the front muffler pipe and the rear muffler pipe. The rear end cover mesh plate is connected to the upper cover and the lower cover of the muffler. The rear end cover cotton is disposed on the rear end cover mesh plate, the muffler bag is disposed on the rear end cover mesh plate, the muffler bag cotton is disposed between the rear end cover mesh plate, the muffler bag and the muffler bag mesh plate, and the air outlet pipe is disposed on the muffler bag.

[0006] The silent variable frequency gasoline generator muffler also includes a spark eliminator base, a spark eliminator cover, multiple bolts and multiple nuts. The spark eliminator base is fixedly connected to the exhaust pipe, and the spark eliminator cover is fixed to the spark eliminator base by the multiple bolts and multiple nuts.

[0007] The silent variable frequency gasoline generator muffler also includes a front muffler sleeve and a front muffler cotton, with the front muffler cotton disposed between the front muffler pipe and the front muffler sleeve.

[0008] The silent variable frequency gasoline generator muffler also includes a rear muffler sleeve and a rear muffler cotton, with the rear muffler cotton disposed between the rear muffler pipe and the rear muffler sleeve.

[0009] The air intake assembly includes a lower cover reinforcing plate, an air intake pipe, and an air intake pipe flange. The lower cover reinforcing plate is fixedly connected to the lower cover of the muffler, and the air intake pipe is connected to both the lower cover reinforcing plate and the air intake pipe flange.

[0010] The mounting assembly includes two front lugs and two rear lugs. The two front lugs are connected to one side of the front cover of the muffler, and the two rear lugs are fixedly connected to one side of the rear cover of the muffler.

[0011] This invention also provides a manufacturing process for a silent variable frequency gasoline generator muffler, used to produce the silent variable frequency gasoline generator muffler as described above. Includes the following steps: First, the upper cover of the muffler, the upper cover mesh plate, and the upper cover cotton are assembled by stamping. Then, the lower cover of the muffler, the lower cover mesh plate, and the lower cover cotton are assembled. Then, the upper cover of the muffler and the lower cover of the muffler are assembled, and then assembled with the remaining parts; The spark extinguisher cover plate is fixed to the spark extinguisher base by a plurality of bolts and a plurality of nuts; Next, check the appearance of the muffler for any defects, use professional tools to measure the accuracy of key dimensions, and test the airtightness by inflating it.

[0012] During assembly, robots weld the components according to preset parameters and paths, with a focus on monitoring critical welds.

[0013] This invention discloses a silent variable frequency gasoline generator muffler and its manufacturing process. In practical use, gas enters between the upper and lower cover mesh plates via the intake assembly. Due to obstruction by the front cover plate, it then enters through the front muffler pipe and is guided to the space between the rear partition plate and the rear end cover mesh plate. At this point, the gas passes through the mesh on the rear partition plate and enters the space between the front and rear partition plates. Subsequently, it is guided through the rear muffler pipe to the muffler housing for further silencing before being discharged through the exhaust pipe. The installation assembly is used to install the entire muffler. Because the upper cover, upper cover mesh plate, and upper cover cotton are assembled by stamping, and the lower cover, lower cover mesh plate, and lower cover cotton are also assembled, the uniformity of the sound-absorbing cotton is not poor. This method solves the technical problem in the prior art where the sound-absorbing cotton is manually added to the interlayer, resulting in inconsistent quantity and poor uniformity of the added sound-absorbing cotton. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the silent variable frequency gasoline generator muffler of the present invention.

[0016] Figure 2 This is a cross-sectional view of the silent variable frequency gasoline generator muffler of the present invention.

[0017] Figure 3 This is a partial structural schematic diagram of the silent variable frequency gasoline generator muffler of the present invention.

[0018] Figure 4 This is a partial structural schematic diagram of the silent variable frequency gasoline generator muffler of the present invention.

[0019] 1-Front end cover, 2-Front end cover, 3-Muffler top cover, 4-Top cover cover, 5-Top cover, 6-Muffler bottom cover, 7-Bottom cover, 8-Bottom cover, 9-Front partition, 10-Rear partition, 11-Front silencer pipe, 12-Plug, 13-Rear silencer pipe, 14-Muffler rear end cover, 15-Rear end cover, 16-Rear end cover, 17-Silencer pack, 18-Silencer pack, 1 9-Silencer mesh plate, 20-Exhaust pipe, 21-Spark extinguisher base, 22-Spark extinguisher cover plate, 23-Bolt, 24-Nut, 25-Front silencer sleeve, 26-Front silencer cotton, 27-Rear silencer sleeve, 28-Rear silencer cotton, 29-Lower cover reinforcing plate, 30-Intake pipe, 31-Intake pipe flange, 32-Front end support, 33-Rear end support, 34-Filter screen. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] Please see Figures 1 to 4 , Figure 1 This is a schematic diagram of the structure of the silent variable frequency gasoline generator muffler of the present invention. Figure 2 This is a cross-sectional view of the silent variable frequency gasoline generator muffler of the present invention. Figure 3 This is a partial structural schematic diagram of the silent variable frequency gasoline generator muffler of the present invention. Figure 4 This is a partial structural schematic diagram of the silent variable frequency gasoline generator muffler of the present invention.

[0022] This invention provides a silent variable frequency gasoline generator muffler, comprising an intake assembly, a mounting assembly, a front cover mesh plate 1, a front cover cotton 2, a muffler upper cover 3, an upper cover mesh plate 4, an upper cover cotton 5, a muffler lower cover 6, a lower cover mesh plate 7, a lower cover cotton 8, a front partition plate 9, a rear partition plate 10, a front muffler pipe 11, multiple plugs 12, a rear muffler pipe 13, a muffler rear end cover 14, a rear end cover mesh plate 15, a rear end cover cotton 16, a muffler cover 17, a muffler cover cotton 18, a muffler cover mesh plate 19, and an exhaust pipe 20. The upper cover cotton 5 is disposed on the muffler upper cover 3 and the... Between the upper cover mesh plate 4, the lower cover cotton 8 is disposed between the lower cover 6 and the lower cover mesh plate 7 of the muffler, the upper cover 3 of the muffler is fixedly connected to the lower cover 6 of the muffler, the front partition plate 9 and the rear partition plate 10 are both connected to the upper cover mesh plate 4 and the lower cover mesh plate 7, the front muffler pipe 11 and the rear muffler pipe 13 are respectively disposed on the front partition plate 9 and the rear partition plate 10, the front cover mesh plate 1 is connected to the upper cover 3 and the lower cover 6 of the muffler, and the front cover cotton 2 is disposed on the front cover mesh plate 1; The air intake assembly is disposed on the lower cover 6 of the muffler. Multiple plugs 12 are respectively disposed on the front muffler pipe 11 and the rear muffler pipe 13. The rear end cover plate 15 is connected to the upper cover 3 and the lower cover 6 of the muffler. The rear end cover cotton 16 is disposed on the rear end cover plate 15. The muffler bag 17 is disposed on the rear end cover plate 15. The muffler bag cotton 18 is disposed between the rear end cover plate 15, the muffler bag 17 and the muffler bag cover plate 19. The air outlet pipe 20 is disposed on the muffler bag 17.

[0023] In this specific embodiment, during actual use, gas enters between the upper cover mesh plate 4 and the lower cover mesh plate 7 through the air intake assembly. Due to the obstruction of the front cover plate, it then enters through the front silencer pipe 11 and is guided to the space between the rear partition plate 10 and the rear cover mesh plate 15. At this time, the gas will again enter between the front partition plate 9 and the rear partition plate 10 through the mesh on the rear partition plate 10, and then be guided through the rear silencer pipe 13 into the silencer bag 17 for further silencing before exiting from the above-mentioned outlet. The air tube 20 can be used to discharge the air. The installation assembly is used to install the entire muffler. Because the muffler upper cover 3, the upper cover mesh plate 4 and the upper cover cotton 5 are assembled by stamping, and the muffler lower cover 6, the lower cover mesh plate 7 and the lower cover cotton 8 are assembled, the uniformity of the sound-absorbing cotton will not be poor. This method solves the technical problem in the prior art where the sound-absorbing cotton in the muffler is manually added to the interlayer, resulting in the inability to guarantee the amount of sound-absorbing cotton added and the poor uniformity.

[0024] The silent variable frequency gasoline generator muffler also includes a spark eliminator base 21, a spark eliminator cover 22, multiple bolts 23 and multiple nuts 24. The spark eliminator base 21 is fixedly connected to the exhaust pipe 20, and the spark eliminator cover 22 is fixed to the spark eliminator base 21 by multiple bolts 23 and multiple nuts 24.

[0025] In this specific embodiment, the spark extinguisher base 21 is disposed on the vent pipe 20 to support the installation of the spark extinguisher cover plate 22, and the spark extinguisher cover plate 22 is fixed to the spark extinguisher base 21 by a plurality of bolts 23 and a plurality of nuts 24.

[0026] Secondly, the silent variable frequency gasoline generator muffler also includes a front muffler sleeve 25 and a front muffler cotton 26, with the front muffler cotton 26 disposed between the front muffler pipe 11 and the front muffler sleeve; The silent variable frequency gasoline generator muffler also includes a rear muffler sleeve 27 and a rear muffler cotton 28, with the rear muffler cotton 28 disposed between the rear muffler pipe 13 and the rear muffler sleeve.

[0027] In this specific embodiment, by setting the front silencer sleeve 25, the front silencer cotton 26, the rear silencer sleeve 27, and the rear silencer cotton 28, the noise reduction effect of the silencer itself can be improved.

[0028] Meanwhile, the air intake assembly includes a lower cover reinforcing plate 29, an air intake pipe 30, and an air intake pipe flange 31. The lower cover reinforcing plate 29 is fixedly connected to the lower cover 6 of the muffler, and the air intake pipe 30 is connected to both the lower cover reinforcing plate 29 and the air intake pipe flange 31.

[0029] In this specific embodiment, the lower cover reinforcing plate 29 is used to enhance the strength of the lower cover 6 of the muffler, making it easier to install the air intake pipe 30, and the air intake pipe flange 31 facilitates the installation of the air intake pipe 30 in a designated position.

[0030] Furthermore, the mounting assembly includes two front support ears 32 and two rear support ears 33. Both front support ears 32 are connected to one side of the front cover of the muffler, and both rear support ears 33 are fixedly connected to one side of the rear cover 14 of the muffler.

[0031] In this specific embodiment, by providing two front support ears 32 and two rear support ears 33, it is convenient to install the entire silent variable frequency gasoline generator muffler in a designated location.

[0032] Furthermore, the silent variable frequency gasoline generator muffler also includes a filter screen 34, which is disposed on the spark extinguisher cover plate 22.

[0033] In this specific embodiment, by setting the filter screen 34, impurities in the gas can be filtered and discharged.

[0034] This invention also provides a manufacturing process for a silent variable frequency gasoline generator muffler, used to produce the silent variable frequency gasoline generator muffler as described above. Includes the following steps: First, the upper cover 3, the upper cover mesh plate 4, and the upper cover cotton 5 of the muffler are assembled by stamping. Then, the lower cover 6, the lower cover mesh plate 7, and the lower cover cotton 8 of the muffler are assembled. Then, the upper cover 3 of the muffler and the lower cover 6 of the muffler are assembled together, and the remaining parts are assembled together. The spark extinguisher cover plate 22 is fixed to the spark extinguisher base 21 by a plurality of bolts 23 and a plurality of nuts 24; Next, check the appearance of the muffler for any defects, use professional tools to measure the accuracy of key dimensions, and test the airtightness by inflating it.

[0035] During the assembly process, the robot uses visual recognition and path planning algorithms to weld the assembled components according to preset parameters and paths, and uses sensors to collect weld data in real time, and uses anomaly detection algorithms to monitor the quality of key welds. Appearance inspection steps: Images of the muffler surface are acquired at 30 frames per second using an industrial camera. The images are then input into a defect detection model trained on YOLOv8s (the training set contains 50,000 augmented images covering 6 types of defects, including scratches and dents). The model outputs the defect type, location, and confidence level in real time and automatically marks defect areas ≥0.05mm in the images. Finally, a JSON report containing defect statistics and sorting instructions is generated.

[0036] In the silent variable frequency gasoline generator muffler and manufacturing process of this invention, during specific use, gas enters between the upper cover mesh plate 4 and the lower cover mesh plate 7 through the intake assembly. Due to the obstruction of the front cover plate, it then enters through the front muffler pipe 11 and is guided to the space between the rear partition plate 10 and the rear end cover mesh plate 15. At this time, the gas will again enter between the front partition plate 9 and the rear partition plate 10 through the mesh on the rear partition plate 10, and then be guided into the muffler housing 17 through the rear muffler pipe 13. After the initial silencing, the sound can be discharged through the aforementioned exhaust pipe 20. The installation assembly is used to install the entire muffler. Because the muffler upper cover 3, the upper cover mesh plate 4, and the upper cover cotton 5 are assembled by stamping, and the muffler lower cover 6, the lower cover mesh plate 7, and the lower cover cotton 8 are assembled, the uniformity of the sound-absorbing cotton will not be poor. This method solves the technical problem in the prior art where the sound-absorbing cotton in the muffler is manually added to the interlayer, resulting in the inability to guarantee the quantity of sound-absorbing cotton added and the poor uniformity.

[0037] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A silent variable frequency gasoline generator muffler, characterized in that, The system includes an intake assembly, mounting assembly, front cover mesh plate, front cover cotton, muffler top cover, top cover mesh plate, top cover cotton, muffler bottom cover, bottom cover mesh plate, bottom cover cotton, front partition, rear partition, front muffler pipe, multiple plugs, rear muffler pipe, muffler rear end cover, rear end cover mesh plate, rear end cover cotton, muffler package, muffler package cotton, muffler package mesh plate, and exhaust pipe. The top cover cotton is disposed between the muffler top cover and the top cover mesh plate, and the bottom cover cotton is disposed between the muffler bottom cover and the bottom cover mesh plate. The muffler top cover and the muffler bottom cover are fixedly connected. The front partition and the rear partition are both connected to the top cover mesh plate and the lower cover mesh plate. The front muffler pipe and the rear muffler pipe are respectively disposed on the front partition and the rear partition. The front cover mesh plate is connected to both the muffler top cover and the muffler bottom cover, and the front cover cotton is disposed on the front cover mesh plate. The air intake assembly is disposed on the lower cover of the muffler, and multiple plugs are respectively disposed on the front muffler pipe and the rear muffler pipe. The rear end cover mesh plate is connected to the upper cover and the lower cover of the muffler. The rear end cover cotton is disposed on the rear end cover mesh plate, the muffler bag is disposed on the rear end cover mesh plate, the muffler bag cotton is disposed between the rear end cover mesh plate, the muffler bag and the muffler bag mesh plate, and the air outlet pipe is disposed on the muffler bag.

2. The silent variable frequency gasoline generator muffler as described in claim 1, characterized in that, The silent variable frequency gasoline generator muffler also includes a spark extinguisher base, a spark extinguisher cover plate, multiple bolts and multiple nuts. The spark extinguisher base is fixedly connected to the exhaust pipe, and the spark extinguisher cover plate is fixed to the spark extinguisher base by the multiple bolts and multiple nuts.

3. The silent variable frequency gasoline generator muffler as described in claim 2, characterized in that, The silent variable frequency gasoline generator muffler also includes a front muffler sleeve and a front muffler cotton, with the front muffler cotton disposed between the front muffler pipe and the front muffler sleeve.

4. The silent variable frequency gasoline generator muffler as described in claim 3, characterized in that, The silent variable frequency gasoline generator muffler also includes a rear muffler sleeve and a rear muffler cotton, with the rear muffler cotton disposed between the rear muffler pipe and the rear muffler sleeve.

5. The silent variable frequency gasoline generator muffler as described in claim 4, characterized in that, The air intake assembly includes a lower cover reinforcing plate, an air intake pipe, and an air intake pipe flange. The lower cover reinforcing plate is fixedly connected to the lower cover of the muffler, and the air intake pipe is connected to both the lower cover reinforcing plate and the air intake pipe flange.

6. The silent variable frequency gasoline generator muffler as described in claim 5, characterized in that, The mounting assembly includes two front lugs and two rear lugs. The two front lugs are connected to one side of the front cover of the muffler, and the two rear lugs are fixedly connected to one side of the rear cover of the muffler.

7. A manufacturing process for a silent variable frequency gasoline generator muffler, used to produce the silent variable frequency gasoline generator muffler as described in claim 6, characterized in that, Includes the following steps: First, the upper cover of the muffler, the upper cover mesh plate, and the upper cover cotton are assembled by stamping. Then, the lower cover of the muffler, the lower cover mesh plate, and the lower cover cotton are assembled. Then, the upper cover of the muffler and the lower cover of the muffler are assembled, and then assembled with the remaining parts; The spark extinguisher cover plate is fixed to the spark extinguisher base by a plurality of bolts and a plurality of nuts; Next, check the appearance of the muffler for any defects, use professional tools to measure the accuracy of key dimensions, and test the airtightness by inflating it.

8. The manufacturing process of the silent variable frequency gasoline generator muffler as described in claim 7, characterized in that, During assembly, robots weld the components according to preset parameters and paths, with a focus on monitoring critical welds.

Images