Generator set device with noise reduction structure and noise reduction method

Abstract

The invention discloses a generator set device with a noise reduction structure and a noise reduction method, and relates to the technical field of generator sets, the generator set device comprises a case, a cover plate is fixedly connected to the top of the case, a supporting plate and a diesel generator are arranged in the case, and an oil discharge pipe is fixedly connected to the top of the diesel generator; a fixing disc is fixedly connected into the annular groove of the cover plate, a plurality of rotating rods are fixedly connected to the top of the fixing disc in an annular array mode, supporting blades are fixedly connected to the outer sides of the rotating rods, sealing grooves are integrally formed in one sides of the supporting blades, and sealing pieces are fixedly connected to the other sides of the supporting blades. According to the generator set device with the noise reduction structure and the noise reduction method, noise generated during operation of a diesel generator is effectively isolated, the overall noise reduction effect is improved, the generator set device can adapt to oil discharge pipes with different diameters, and the universality and installation convenience of the device are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of generator set, in particular to a generator set device with noise reduction structure and a noise reduction method. BACKGROUND

[0002] The communication power supply is a key device for providing DC or AC power for communication equipment, and its stability directly affects the operation quality of the communication system. In the communication base station and other occasions, diesel generators are often used as backup power, but the noise generated during operation is large, especially in residential areas or densely populated areas, which can easily cause the problem of disturbing the public, so the noise reduction device becomes a necessary equipment for the generator.

[0003] The existing noise reduction device adopts the structure of a shell cooperating with a damping mechanism to reduce noise by reducing vibration. However, in actual use, the existing device still has the following deficiencies: For example, the comparative file CN116220906A, a sound insulation and noise reduction device for a generator equipment and a noise reduction method, includes a cart, the top of the cart is fixedly connected with an inner shell, the outer surface of the inner shell is fixedly connected with an outer shell, a water collecting cavity is formed between the inner shell and the outer shell, a top cover is embedded and installed on the top of the inner shell, and a pipe opening is formed in the inner top cover; The above scheme realizes sealing and noise reduction of the oil discharge pipe through the combination of the rubber sound insulation film and the support blade. Although the rubber ring or rubber film has a certain sealing effect, the radial support force of the rubber ring or rubber film on the pipe is insufficient, especially when facing different pipe diameters or exhaust pipes with large vibration amplitudes, the pipe is prone to shaking, which affects the sealing effect and even aggravates the noise leakage. SUMMARY

[0004] The purpose of the present application is to provide a generator set device with noise reduction structure and a noise reduction method to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a generator set device with noise reduction structure and a noise reduction method, including a machine case, the top of the machine case is fixedly connected with a cover plate, the inside of the machine case is provided with a support plate and a diesel generator, the diesel generator is fixedly installed on the top of the support plate through bolts, the top of the diesel generator is fixedly connected with an oil discharge pipe, the inside of the cover plate is provided with an annular groove, the inside of the annular groove of the cover plate is fixedly connected with a fixed disc, the top of the fixed disc is fixedly connected with a plurality of rotating rods in an annular array, the outside of each rotating rod is fixedly connected with a support blade, the plurality of support blades are arranged in an upper and lower interval, each support blade is integrally formed with a sealing groove on one side, and each support blade is fixedly connected with a sealing piece on the other side, and each sealing groove is adapted to each sealing piece.

[0006] Preferably, a plurality of said rotating rods are fixedly connected with guide gears outside, each adjacent guide gear is arranged on the upper end and the lower end of the rotating rod respectively, a guide gear ring is rotatably connected inside the cover plate annular groove, and the guide gear ring is meshingly connected with the plurality of guide gears, so that the guide gear ring drives the plurality of guide gears to rotate when rotating, thereby driving the plurality of rotating rods to rotate.

[0007] Preferably, a transmission gear slot is formed on the outside of the guide gear ring, a first motor is fixedly connected to one side inside the cover plate, a transmission gear is fixedly connected to the output end of the first motor, the transmission gear is rotatably connected to the inside of the cover plate, the transmission gear is meshingly connected with the transmission gear slot, and the transmission gear is driven to rotate by the first motor, thereby driving the transmission gear slot and the guide gear ring to rotate.

[0008] Preferably, slide rails are fixedly connected to the front and rear sides inside the case, slide blocks are slidably connected to both ends inside the two slide rails, fixed blocks are fixedly connected to the top of the four slide blocks, support arms are hingedly connected to one side of the four fixed blocks, and the four support arms are hingedly connected with the four corners of the bottom of the support plate, respectively.

[0009] Preferably, two moving plates are arranged on the bottom side inside the case, the two moving plates are hingedly connected with the bottom ends of the four support arms at both ends, respectively, a threaded rod is rotatably connected to the bottom end inside the case, a second motor is fixedly connected to one side of the case, the output end of the second motor penetrates through the side wall of the case and is rotatably connected with the case, the output end of the second motor is fixedly connected with the threaded rod, and the threaded rod is driven to rotate by the second motor, so that the two moving plates are reversely moved when the threaded rod rotates.

[0010] Preferably, piston sleeves are fixedly connected to the top of the two slide rails, piston plates are slidably connected to both sides inside the piston sleeves, piston rods are fixedly connected to the reverse side of the four piston plates, respectively, the four piston rods penetrate through the end walls of the two piston sleeves and are slidably connected with the two piston sleeves, a plurality of through holes are annularly arranged inside the piston plate, a buffer solution is filled in the piston sleeve, the four piston rods penetrate through the four fixed blocks and are fixedly connected with the four fixed blocks, respectively, first springs are sleeved on the outside of the four piston rods, respectively, and the two ends of the plurality of first springs are fixedly connected with the fixed blocks and the piston sleeves, respectively, so that the buffer solution flows through the plurality of through holes when the piston plate moves, forming a damping effect, and the first springs cooperate to buffer the fixed blocks.

[0011] Preferably, a fixed seat is fixedly connected inside the case, a first sliding sleeve is fixedly connected to the top of the fixed seat, a sliding seat is slidably connected inside the first sliding sleeve, a second sliding sleeve is fixedly connected to the top of the sliding seat, a support shaft is slidably connected inside the second sliding sleeve, a top plate is fixedly connected to the top of the support shaft, and the top plate is fixedly connected with the bottom of the support plate, thereby supporting the support plate.

[0012] Preferably, the second sliding sleeve top end outside is fixedly connected with a side plate, a third spring is sleeved outside the second sliding sleeve, the both ends of the third spring are fixedly connected with the side plate and the first sliding sleeve, a second spring is fixedly connected to the bottom of the top plate, and the bottom end of the second spring is fixedly connected with the top of the fixed base to support the top plate and the side plate.

[0013] Preferably, the inside of the case is provided with a sealing plug, the sealing plug is sleeved outside the oil discharge pipe, a rubber sound insulation film is fixedly connected inside the sealing plug, the rubber sound insulation film is tightly attached to the outside of the oil discharge pipe, a plurality of side frames are fixedly connected outside the sealing plug, the bottom of each side frame is fixedly connected with a top seat, the top seat is arranged on the top of the diesel generator, the one end of each of the four side frames is fixedly connected with a baffle, the top end of the inside of the case is fixedly connected with four sliding rods, the four sliding rods are respectively penetrated through the four baffles and are in sliding connection with the four baffles, the bottom end of each of the four baffles is fixedly connected with a bottom plate, the outside of each of the four sliding rods is sleeved with a fourth spring, the both ends of each of the four fourth springs are fixedly connected with the bottom plate and the baffle to support the side frame and the sealing plug, so that the sealing plug is tightly fitted in the annular groove of the cover plate when the sealing plug rises, one side of the supporting plate is fixedly connected with a supporting plate, the top of the supporting plate is fixedly connected with a liquid cooling tank, two flow guide pipes are arranged on the top of the liquid cooling tank, the two flow guide pipes are penetrated through the cover plate and are in sliding connection with the cover plate, so that the inside of the case can be cooled and radiated.

[0014] A noise reduction method of a generator set with a noise reduction structure, comprising: Step one: the second motor drives the threaded rod to rotate, the moving plate drives the support arm to lift the support plate and the diesel generator upwards, the oil discharge pipe rises through the rubber sound insulation film in the sealing plug, forms a tight wrapping, realizes sound insulation and sealing of the oil discharge pipe part, the sealing plug is lifted after contacting the top seat and the diesel generator, is inserted into the annular groove of the cover plate, and the sealing and sound insulation effects are further enhanced; Step two: the first motor is started, the transmission gear and the transmission gear slot are engaged, the guide gear ring is driven to rotate, the guide gear ring drives the plurality of guide gears and the rotating rod to rotate, the support blades are closed to the center, the support blades are inserted and matched with the sealing grooves through the sealing pieces, tightly wrap the outer wall of the oil discharge pipe, form a multi-layer staggered sealing structure, and effectively isolate the noise leakage; Step three: in the lifting process of the support plate, the top plate, the support shaft, the second sliding sleeve and the sliding seat are cooperatively slid, the elastic support of the second spring and the third spring is matched, vibration is absorbed, the fixed block slides in the sliding rail, the piston plate moves in the piston sleeve, the damping of the buffer liquid is formed through the through hole, the first spring is combined to further buffer the vibration, the liquid cooling tank radiates the inside of the case through the flow guide pipe, and stable operation of the noise reduction structure in a low temperature environment is ensured.

[0015] Compared with the prior art, the present application has the following advantages: 1. When the support plate of this application is lifted upwards, it drives the diesel generator to move upwards, thereby causing the diesel generator to drive the oil drain pipe to move upwards. As the oil drain pipe passes through the center of the sealing plug and the rubber sound insulation membrane, the elasticity of the rubber sound insulation membrane itself makes the rubber sound insulation membrane tightly adhere to the outside of the oil drain pipe and tightly wrap it. At the same time, during the upward movement of the support plate, the top plate will rise with the support plate, causing the top plate and the support shaft to move upwards inside the second sliding sleeve. Simultaneously, the second sliding sleeve and the sliding seat move upwards inside the first sliding sleeve. The second spring and the third spring lift the side plate and the top plate upwards, supporting the bottom of the support plate, thereby improving the stability of the support plate during the upward movement.

[0016] 2. This application employs a lifting mechanism consisting of a support arm, a movable plate, a threaded rod, and a second motor, which enables smooth lifting and lowering of the support plate and diesel generator. Simultaneously, a buffer system composed of a piston sleeve, piston plate, and a first spring effectively absorbs vibration and improves equipment operational stability. By setting up a multi-stage spring buffer system including a first sliding sleeve, a second sliding sleeve, a second spring, and a third spring, multi-directional elastic support is achieved for the support plate, further reducing vibration transmission and structural noise.

[0017] 3. This application uses a sealing plug and a rubber sound-insulating membrane to tightly wrap the oil drain pipe, and combines the sealing grooves and sealing plates on the support blades to form a multi-layer sealing structure, effectively isolating the noise generated by the diesel generator during operation and improving the overall noise reduction effect. The support blades are linked by a rotating rod, a guide gear, and a guide gear ring, and are driven by a first motor to achieve opening and closing adjustment, which can adapt to oil drain pipes of different diameters, improving the versatility and ease of installation of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front sectional view of the chassis of the present invention; Figure 3 This is a cross-sectional perspective view of the three-dimensional structure of the present invention; Figure 4 This is a schematic diagram of the liquid cooling box of the present invention; Figure 5 This is a schematic diagram of the support plate of the present invention; Figure 6 This is a schematic diagram of the structure of the fixing base of the present invention; Figure 7 This is a schematic diagram of the top plate of the present invention; Figure 8 This is a schematic diagram of the structure of the movable plate of the present invention; Figure 9 This is a schematic diagram of the piston sleeve of the present invention; Figure 10 This is a schematic diagram of the cover plate of the present invention; Figure 11 This is a schematic diagram of the side frame structure of the present invention; Figure 12 This is a schematic diagram of the structure of the guide gear ring of the present invention; Figure 13 This is a schematic diagram of the structure of the fixing disk of the present invention; Figure 14 This is a schematic diagram of the rotating rod of the present invention; Figure 15 This is a schematic diagram of the structure supporting the blade of the present invention; Figure 16 This is a schematic diagram of the structure of the sealing sheet of the present invention; Figure 17 This is a schematic diagram of the sealing groove of the present invention; Figure 18 This is a schematic diagram of the structure of the rubber sound insulation film of the present invention.

[0019] Labels in the diagram: 1. Chassis; 2. Cover plate; 3. Support plate; 4. Diesel generator; 5. Oil drain pipe; 6. Fixed plate; 7. Rotating rod; 8. Support blade; 9. Sealing groove; 10. Sealing plate; 11. Guide gear; 12. Guide gear ring; 13. Transmission gear groove; 14. First motor; 15. Transmission gear; 16. Slide rail; 17. Slider; 18. Fixed block; 19. Support arm; 20. Moving plate; 21. Threaded rod; 22. Second motor; 23. Piston sleeve ; 24. Piston rod; 25. Piston plate; 26. First spring; 27. Fixed seat; 28. First sliding sleeve; 29. ​​Sliding seat; 30. Second sliding sleeve; 31. Support shaft; 32. Top plate; 33. Side plate; 34. Second spring; 35. Third spring; 36. Side frame; 37. Top seat; 38. Baffle; 39. Sliding rod; 40. Bottom plate; 41. Fourth spring; 42. Sealing plug; 43. Rubber sound insulation membrane; 44. Support plate; 45. Liquid cooling box; 46. Guide pipe. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example: Figures 1-18As shown, this invention provides a technical solution for a generator set device and noise reduction method with a noise reduction structure, including a chassis 1. A cover plate 2 is fixedly connected to the top of the chassis 1. A support plate 3 and a diesel generator 4 are arranged inside the chassis 1. The diesel generator 4 is fixedly installed on the top of the support plate 3 by bolts. A support plate 44 is fixedly connected to one side of the support plate 3. A liquid cooling box 45 is fixedly connected to the top of the support plate 44. Two guide pipes 46 are installed on the top of the liquid cooling box 45. Both guide pipes 46 pass through the cover plate 2 and are slidably connected to the cover plate 2 to facilitate cooling and heat dissipation inside the chassis 1. An oil drain pipe 5 is fixedly connected to the top of the diesel generator 4. An annular groove is opened inside the cover plate 2. A fixed plate 6 is fixedly connected inside the annular groove of the cover plate 2. Multiple rotating rods 7 are fixedly connected to the top of the fixed plate 6 in an annular array. Support blades 8 are fixedly connected to the outer sides of the multiple rotating rods 7. The multiple support blades 8 are arranged at intervals on the upper and lower sides. A sealing element is integrally formed on one side of each of the multiple support blades 8. On the other side of the groove 9, multiple supporting blades 8 are fixedly connected to sealing plates 10. Multiple sealing grooves 9 are respectively inserted and matched with multiple sealing plates 10. Multiple rotating rods 7 are fixedly connected to the outer side of the rods 7. Each adjacent distribution of guide gears 11 is respectively set at the upper and lower ends of the rotating rods 7. A guide gear ring 12 is rotatably connected inside the annular groove of the cover plate 2. The guide gear ring 12 is meshed with multiple guide gears 11. When the guide gear ring 12 rotates, it drives multiple guide gears 11 to rotate, thereby driving multiple rotating rods 7 to rotate. A transmission gear groove 13 is opened on the outer side of the guide gear ring 12. A first motor 14 is fixedly connected to one side of the inside of the cover plate 2. A transmission gear 15 is fixedly connected to the output end of the first motor 14. The transmission gear 15 is rotatably connected inside the cover plate 2. The transmission gear 15 is meshed with the transmission gear groove 13. The first motor 14 starts and drives the transmission gear 15 to rotate, thereby driving the transmission gear groove 13 and the guide gear ring 12 to rotate.

[0022] Inside the chassis 1, slide rails 16 are fixedly connected to both the front and rear sides. Slider blocks 17 are slidably connected to both ends of each slide rail 16. Fixed blocks 18 are fixedly connected to the tops of each of the four sliders 17. Support arms 19 are hinged to one side of each of the four fixed blocks 18. The four support arms 19 are hinged to the four corners of the bottom of the support plate 3. Two movable plates 20 are provided on the bottom side inside the chassis 1. The two movable plates 20 are hinged to the bottom ends of the four support arms 19. A threaded rod 21 is rotatably connected to the bottom of the chassis 1. A second motor 22 is fixedly connected to one side of the chassis 1. The output end of the second motor 22 passes through the side wall of the chassis 1 and is rotatably connected to the chassis 1. The output end of the second motor 22 is fixedly connected to the threaded rod 21. Starting the second motor 22 drives the threaded rod 21 to rotate, causing the threaded rod 21 to rotate and drive the two movable plates 20. In reverse movement, piston sleeves 23 are fixedly connected to the top of both slide rails 16. Piston plates 25 are slidably connected to both sides inside the piston sleeves 23. Piston rods 24 are fixedly connected to the opposite side of the four piston plates 25. The four piston rods 24 pass through the end walls of the two piston sleeves 23 and are slidably connected to the two piston sleeves 23. Multiple through holes are opened in a ring array inside the piston plates 25. Buffer solution is poured into the piston sleeves 23. The four piston rods 24 pass through the four fixing blocks 18 and are fixedly connected to the four fixing blocks 18. First springs 26 are sleeved on the outside of the four piston rods 24. The two ends of the multiple first springs 26 are fixedly connected to the fixing blocks 18 and piston sleeves 23 respectively, so that the buffer solution flows through the multiple through holes when the piston plates 25 move, forming a damping effect, which, together with the first springs 26, buffers the fixing blocks 18.

[0023] Inside the casing 1, there is a sealing plug 42, which is fitted onto the outside of the oil drain pipe 5. A rubber sound insulation membrane 43 is fixedly connected inside the sealing plug 42, and the rubber sound insulation membrane 43 is tightly attached to the outside of the oil drain pipe 5. Multiple side brackets 36 are fixedly connected to the outside of the sealing plug 42. Top seats 37 are fixedly connected to both sides of the bottom of the side brackets 36. The top seats 37 are set on the top of the diesel generator 4. A baffle 38 is fixedly connected to one end of each of the four side brackets 36. Four sliding rods 39 are fixedly connected to the top of the inside of the casing 1. The four sliding rods 39 pass through the four baffles 38 and are slidably connected to the four baffles 38. A base plate 40 is fixedly connected to the bottom of each of the four baffles 38. A fourth spring 41 is fitted onto the outside of each of the four sliding rods 39. The two ends of the four fourth springs 41 are fixedly connected to the base plate 40 and the baffles 38, respectively, to support the side brackets 36 and the sealing plug 42, so that the sealing plug 42 fits tightly into the annular groove of the cover plate 2 when it rises.

[0024] A mounting base 27 is fixedly connected inside the chassis 1. A first sliding sleeve 28 is fixedly connected to the top of the mounting base 27. A sliding seat 29 is slidably connected inside the first sliding sleeve 28. A second sliding sleeve 30 is fixedly connected to the top of the sliding seat 29. A support shaft 31 is slidably connected inside the second sliding sleeve 30. A top plate 32 is fixedly connected to the top of the support shaft 31. The top plate 32 is fixedly connected to the bottom of the support plate 3 to support the support plate 3. A side plate 33 is fixedly connected to the outer side of the top of the second sliding sleeve 30. A third spring 35 is sleeved on the outer side of the second sliding sleeve 30. The two ends of the third spring 35 are fixedly connected to the side plate 33 and the first sliding sleeve 28, respectively. A second spring 34 is fixedly connected to the bottom of the top plate 32. The bottom end of the second spring 34 is fixedly connected to the top of the mounting base 27 to support the top plate 32 and the side plate 33.

[0025] When in use, the liquid cooling box 45 is connected to the outside through the guide pipe 46 to achieve effective heat dissipation of the inside of the chassis 1. At the same time, the overall structure is compact and the functional modules work together to achieve multiple functions such as noise reduction, heat dissipation and stable support in a limited space.

[0026] The diesel generator 4 is installed on top of the support plate 3. After the bolt holes are aligned, the oil drain pipe 5 on top of the diesel generator 4 aligns with the annular groove in the center of the cover plate 2. The second motor 22 is then started to rotate the threaded rod 21. When the threaded rod 21 rotates, it drives the two moving plates 20 to move relative to each other. As the two moving plates 20 move, they drive the bottom ends of the two support arms 19 to move. This causes the two support arms 19 to push the support plate 3 upward. When the support plate 3 is pushed upward, it drives the diesel generator 4 to move upward, thereby causing the diesel generator 4 to move the oil drain pipe 5 upward. As the oil drain pipe 5 passes through the center of the sealing plug 42 and the rubber sound insulation membrane 43, the elasticity of the rubber sound insulation membrane 43 makes it tightly fit the outside of the oil drain pipe 5. At the same time, as the support plate 3 rises, the top plate 32 will rise along with the support plate 3, causing the top plate 32 and the support shaft 31 to move upward inside the second sliding sleeve 30. Meanwhile, the second sliding sleeve 30 and the sliding seat 29 move upward inside the first sliding sleeve 28. The second spring 34 and the third spring 35 push the side plate 33 and the top plate 32 upward to support the bottom of the support plate 3, thereby improving the stability of the support plate 3 during the rise.

[0027] When the two movable plates 20 move relative to each other, they drive the fixed block 18 to move relative to each other. This causes the fixed block 18 to move the slider 17 within the slide rail 16, guiding the slide rail 16 and improving the stability of the slider 17. When the fixed block 18 moves, it drives the piston rod 24 and piston plate 25 to move, causing the piston plate 25 to slide within the piston sleeve 23. This allows the buffer solution inside the piston sleeve 23 to flow through multiple through holes inside the piston plate 25, creating a damping effect. Combined with the support of the first spring 26, this buffers and supports the fixed block 18, thereby improving its stability during movement. The lifting mechanism, composed of the support arm 19, movable plate 20, threaded rod 21, and second motor 22, enables smooth lifting of the support plate 3 and diesel generator 4. Simultaneously, the buffer system composed of the piston sleeve 23, piston plate 25, and first spring 26 effectively absorbs vibrations and improves the operational stability of the equipment. By setting up a multi-stage spring buffer system including the first sliding sleeve 28, the second sliding sleeve 30, the second spring 34, and the third spring 35, multi-directional elastic support is achieved for the support plate 3, further reducing vibration transmission and structural noise.

[0028] When the oil drain pipe 5 rises, the first motor 14 starts, driving the transmission gear 15 to rotate. As the transmission gear 15 rotates, it drives the transmission tooth groove 13 to rotate, which in turn drives the guide gear ring 12 to rotate. When the guide gear ring 12 rotates, it drives multiple guide gears 11 to rotate, which in turn drives multiple rotating rods 7 to rotate. This causes multiple support blades 8 to deflect, causing them to synchronously retract towards the center of the annular groove. All support blades 8 contact the outer wall of the oil drain pipe 5, thus... Multiple support blades 8 deform at their ends to fit into the oil drain pipe 5. Simultaneously, as the support blades 8 move, they drive multiple sealing plates 10 to move as well. These sealing plates 10 move within multiple sealing grooves 9, coordinating with the deflection angle of the support blades 8 to maintain a tight seal. The staggered arrangement of the upper and lower layers of support blades 8 enhances the sealing effect, thereby improving the support for the oil drain pipe 5, ensuring its stability, and simultaneously improving noise reduction. This design adapts to oil drain pipes 5 of different sizes, broadening its applicability and allowing for convenient and quick adjustment. By tightly wrapping the oil drain pipe 5 with sealing plugs 42 and rubber sound-insulating membranes 43, and by interlocking the sealing grooves 9 and sealing plates 10 on the support blades 8, a multi-layered sealing structure is formed, effectively isolating noise generated during diesel generator operation and improving overall noise reduction. The support blades 8 are linked by a rotating rod 7, guide gear 11, and guide gear ring 12, and driven by a first motor 14 to achieve opening and closing adjustment. This adapts to oil drain pipes 5 of different diameters, enhancing the versatility and ease of installation of the device.

[0029] During the upward movement of the diesel generator 4, the brackets installed on both sides of the diesel generator 4 come into contact with the bottom of the top seat 37, thereby lifting the two top seats 37 upward, driving the side frame 36 and the sealing plug 42 to rise, so that the sealing plug 42 comes into contact with the annular groove and is pressed tightly, and the sealing plug 42 is inserted into the annular groove to seal. Together with the rubber sound insulation membrane 43 and the oil drain pipe 5, the sealing and noise reduction effect is improved. When the side frame 36 moves, it drives the baffle 38 to move, so that the baffle 38 slides outside the slide rod 39. The slide rod 39 supports and guides the baffle 38, improving the stability of the side frame 36 when it moves.

[0030] A method for noise reduction of a generator set with a noise reduction structure includes: Step 1: Drive the threaded rod 21 to rotate via the second motor 22, causing the moving plate 20 to drive the support arm 19 to lift the support plate 3 and the diesel generator 4 upwards. The oil drain pipe 5 rises accordingly, passing through the rubber sound insulation membrane 43 inside the sealing plug 42 to form a tight wrap, achieving sound insulation and sealing of the oil drain pipe. After the sealing plug 42 contacts the diesel generator 4 at the top seat 37, it is lifted and inserted into the annular groove of the cover plate 2, further enhancing the sealing and sound insulation effect. Step 2: Start the first motor 14, drive the transmission gear 15 to mesh with the transmission gear groove 13, drive the guide gear ring 12 to rotate, the guide gear ring 12 drives multiple guide gears 11 and rotating rod 7 to rotate, so that the support blade 8 closes towards the center. The support blade 8 tightly wraps the outer wall of the oil drain pipe 5 through the insertion and cooperation of the sealing plate 10 and the sealing groove 9, forming a multi-layer staggered sealing structure, effectively isolating noise leakage. Step 3: During the upward movement of the support plate 3, the vibration is absorbed by the coordinated sliding of the top plate 32, support shaft 31, second sliding sleeve 30 and sliding block 29, combined with the elastic support of the second spring 34 and the third spring 35. When the fixed block 18 slides in the slide rail 16, the piston plate 25 moves in the piston sleeve 23. The buffer solution forms damping through the through hole, and the vibration is further buffered by the first spring 26. The liquid cooling box 45 dissipates heat to the inside of the chassis 1 through the guide pipe 46, ensuring that the noise reduction structure operates stably in a low-temperature environment.

[0031] This noise reduction method achieves efficient noise reduction through the synergistic effect of multiple structures: In step one, the sealing plug 42 and the rubber sound insulation membrane 43 tightly wrap the oil drain pipe 5, effectively isolating oil drain noise; in step two, the support blade 8 forms a multi-layered staggered sealing structure through the insertion and cooperation of the sealing plate 10 and the sealing groove 9, further blocking noise transmission; in step three, the damping and buffering effect of the second spring 34, the third spring 35, the piston sleeve 23, and the buffer solution significantly absorbs the vibration of the diesel generator 4 during operation, reducing structural sound transmission. Simultaneously, the liquid cooling box 45 and the guide pipe 46 ensure heat dissipation inside the chassis, maintaining the long-term stable operation of the noise reduction structure. This method achieves comprehensive noise reduction from the noise source to the propagation path, significantly improving the quietness performance of the generator set.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A generator set device with a noise reduction structure, comprising a chassis (1), a cover plate (2) fixedly connected to the top of the chassis (1), a support plate (3) and a diesel generator (4) disposed inside the chassis (1), the diesel generator (4) being fixedly installed on the top of the support plate (3) by bolts, characterized in that: The diesel generator (4) is fixedly connected to the top of the oil drain pipe (5). The cover plate (2) has an annular groove inside. The cover plate (2) is fixedly connected to the annular groove. The top of the fixed plate (6) is fixedly connected to multiple rotating rods (7) in an annular array. Support blades (8) are fixedly connected to the outside of the multiple rotating rods (7). The multiple support blades (8) are arranged at intervals on the upper and lower sides. A sealing groove (9) is integrally formed on one side of the multiple support blades (8). A sealing plate (10) is fixedly connected to the other side of the multiple support blades (8). The multiple sealing grooves (9) are respectively inserted and adapted to the multiple sealing plates (10).

2. The generator set device with noise reduction structure according to claim 1, characterized in that: Multiple rotating rods (7) are fixedly connected to the outer side of each of the rotating rods (7). Each adjacent distributed guide gear (11) is respectively set at the upper and lower ends of the rotating rod (7). A guide gear ring (12) is rotatably connected inside the annular groove of the cover plate (2). The guide gear ring (12) is meshed with multiple guide gears (11).

3. A generator set device with a noise reduction structure according to claim 2, characterized in that: The guide gear ring (12) has a transmission tooth groove (13) on its outer side. A first motor (14) is fixedly connected to one side of the inside of the cover plate (2). A transmission gear (15) is fixedly connected to the output end of the first motor (14). The transmission gear (15) is rotatably connected to the inside of the cover plate (2). The transmission gear (15) meshes with the transmission tooth groove (13).

4. A generator set device with a noise reduction structure according to claim 1, characterized in that: The front and rear sides of the chassis (1) are fixedly connected with slide rails (16), and the two slide rails (16) are slidably connected to the two ends of the slide rails (17). The top of the four slide rails (17) is fixedly connected with a fixing block (18), and a support arm (19) is hinged to one side of each of the four fixing blocks (18). The four support arms (19) are respectively hinged to the four corners of the bottom of the support plate (3).

5. A generator set device with a noise reduction structure according to claim 1, characterized in that: The bottom of the chassis (1) is provided with two movable plates (20). The two movable plates (20) are respectively hinged to the bottom of four support arms (19). The bottom of the chassis (1) is rotatably connected with a threaded rod (21). A second motor (22) is fixedly connected to one side of the chassis (1). The output end of the second motor (22) passes through the side wall of the chassis (1) and is rotatably connected to the chassis (1). The output end of the second motor (22) is fixedly connected to the threaded rod (21).

6. A generator set device with a noise reduction structure according to claim 4, characterized in that: Piston sleeves (23) are fixedly connected to the top of each of the two slide rails (16). Piston plates (25) are slidably connected to both sides inside the piston sleeves (23). Piston rods (24) are fixedly connected to the opposite side of each of the four piston plates (25). The four piston rods (24) pass through the end walls of the two piston sleeves (23) and are slidably connected to the two piston sleeves (23). Multiple through holes are opened in a ring array inside the piston plates (25). Buffer solution is filled inside the piston sleeves (23). The four piston rods (24) pass through the four fixing blocks (18) and are fixedly connected to the four fixing blocks (18). First springs (26) are sleeved on the outside of each of the four piston rods (24). The two ends of the multiple first springs (26) are fixedly connected to the fixing blocks (18) and the piston sleeves (23) respectively.

7. A generator set device with a noise reduction structure according to claim 1, characterized in that: The chassis (1) is fixedly connected to a fixed seat (27). The top of the fixed seat (27) is fixedly connected to a first sliding sleeve (28). The first sliding sleeve (28) is slidably connected to a sliding block (29). The top of the sliding block (29) is fixedly connected to a second sliding sleeve (30). The second sliding sleeve (30) is slidably connected to a support shaft (31). The top of the support shaft (31) is fixedly connected to a top plate (32). The top plate (32) is fixedly connected to the bottom of the support plate (3).

8. A generator set device with a noise reduction structure according to claim 7, characterized in that: A side plate (33) is fixedly connected to the outer side of the top of the second sliding sleeve (30). A third spring (35) is sleeved on the outer side of the second sliding sleeve (30). The two ends of the third spring (35) are fixedly connected to the side plate (33) and the first sliding sleeve (28) respectively. A second spring (34) is fixedly connected to the bottom of the top plate (32). The bottom end of the second spring (34) is fixedly connected to the top of the fixed seat (27).

9. A generator set device with a noise reduction structure according to claim 1, characterized in that: The casing (1) is equipped with a sealing plug (42), which is fitted over the outside of the oil drain pipe (5). A rubber sound insulation membrane (43) is fixedly connected inside the sealing plug (42), and the rubber sound insulation membrane (43) is in close contact with the outside of the oil drain pipe (5). Multiple side brackets (36) are fixedly connected to the outside of the sealing plug (42). Top seats (37) are fixedly connected to both sides of the bottom of each side bracket (36). The top seats (37) are located on the top of the diesel generator (4). A baffle (38) is fixedly connected to one end of each of the four side brackets (36). Four sliding rods (39) are fixedly connected to the top of the inside of the casing (1). The rod (39) passes through the four baffles (38) and is slidably connected to the four baffles (38). The bottom of each of the four baffles (38) is fixedly connected to a base plate (40). The four sliding rods (39) are each fitted with a fourth spring (41). The two ends of the four fourth springs (41) are fixedly connected to the base plate (40) and the baffles (38) respectively. The support plate (3) is fixedly connected to a support plate (44) on one side. The top of the support plate (44) is fixedly connected to a liquid cooling box (45). The top of the liquid cooling box (45) is equipped with two guide pipes (46). Both guide pipes (46) pass through the cover plate (2) and are slidably connected to the cover plate (2).

10. A method for noise reduction in a generator set with a noise reduction structure, applicable to a generator set device with a noise reduction structure as described in any one of claims 1-9, characterized in that, include: Step 1: Drive the threaded rod (21) to rotate through the second motor (22), so that the moving plate (20) drives the support arm (19) to lift the support plate (3) and the diesel generator (4) upward. The oil drain pipe (5) rises accordingly, passes through the rubber sound insulation membrane (43) inside the sealing plug (42), and forms a tight wrap to achieve sound insulation and sealing of the oil drain pipe. After the sealing plug (42) contacts the top seat (37) and the diesel generator (4), it is lifted and inserted into the annular groove of the cover plate (2) to further enhance the sealing and sound insulation effect. Step 2: Start the first motor (14), drive the transmission gear (15) to mesh with the transmission tooth groove (13), drive the guide gear ring (12) to rotate, the guide gear ring (12) drives multiple guide gears (11) and rotating rod (7) to rotate, so that the support blade (8) closes towards the center. The support blade (8) tightly wraps the outer wall of the oil drain pipe (5) through the insertion and cooperation of the sealing plate (10) and the sealing groove (9), forming a multi-layer staggered sealing structure, effectively isolating noise leakage; Step 3: During the upward movement of the support plate (3), the vibration is absorbed by the coordinated sliding of the top plate (32), support shaft (31), second sliding sleeve (30) and sliding seat (29) and the elastic support of the second spring (34) and the third spring (35). When the fixed block (18) slides in the slide rail (16), the piston plate (25) moves in the piston sleeve (23). The buffer solution forms damping through the through hole and further buffers the vibration by combining with the first spring (26). The liquid cooling box (45) dissipates heat to the inside of the chassis (1) through the guide pipe (46) to ensure that the noise reduction structure operates stably in the low temperature environment.

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