Ultra-silence diesel generating set

Abstract

The invention discloses an ultra-silence diesel generating set, and relates to the technical field of diesel generating sets, the ultra-silence diesel generating set comprises a support, a diesel generating set body is arranged on the top surface of the support, the diesel generating set body comprises a diesel engine, a generator body and a control module, and the diesel engine is arranged on the top surface of the support and used for converting chemical energy of diesel into mechanical energy; a diesel engine set body, a generator body, a connecting roller, a gear, a driving motor, a first positioning block, a second connecting rod, a third connecting rod, a second positioning block, a damper, a connecting ring, a second spring, a clamping plate, an electric push rod and a fixing strip which are arranged are matched with one another, so that the stroke of the damper and the second spring can be shortened and locked; when the diesel engine set body vibrates at low frequency, the stroke of the damper and the stroke of the second spring are long, damping of the diesel engine set body is better achieved, noise generated when the diesel engine set body is used is reduced, the noise reduction effect on the diesel engine set body is achieved, and ultra-silence of the diesel engine set body is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of diesel generator sets, in particular to an ultra-quiet diesel generator set. Background Art

[0002] A diesel generator set consists of a diesel engine, a generator, a control system, and various auxiliary systems, such as a cooling system, a fuel system, a starting system, and protective devices. A diesel generator set generates power by burning diesel in a diesel engine to drive the generator, thereby converting mechanical energy into electrical energy. It is widely used in industry, commerce, construction, mining, field operations, backup power supply, emergency power supply, independent power supply, and other fields. The power range of a diesel generator set is very wide, ranging from a few kilowatts to several megawatts. You can choose a suitable unit according to different power requirements. Modern diesel generator sets take environmental factors into consideration during design, and reduce exhaust emissions by installing emission control equipment to meet increasingly stringent environmental protection standards. A diesel generator set can be used as a backup power source to provide electricity when the main power source fails, or as a main power source to supply electricity in areas without grid power.

[0003] After searching, it was found that there were problems in the use of diesel generator sets in the prior art. When the diesel generator set is in use, the internal combustion process and mechanical movement of the engine in the diesel generator set will generate vibrations. The vibrations are transmitted to the bracket through the diesel generator set, which may cause the bracket to vibrate. When the vibration of the bracket reaches a certain frequency, it may resonate with other components of the generator set and the surrounding environment, which will amplify the vibration and cause greater noise. At the same time, the vibration of the generator is related to its speed. The two are linearly related. The higher the speed, the higher the vibration frequency. When the speed of the diesel generator set is low, it will produce low-frequency vibrations. The low-frequency vibrations cause the bracket to vibrate at a low frequency and emit low-frequency noise. When the speed of the diesel generator set is high, it will produce high-frequency vibrations. The high-frequency vibrations cause the bracket to vibrate at a high frequency and emit high-frequency noise. The high-frequency noise is relatively sharp. The existing technology is relatively general in its treatment of the two types of noise, and the noise suppression effect is poor, which affects the staff's use of the diesel generator set to generate electricity. Therefore, based on the above search and combined with the existing technology, an ultra-quiet diesel generator set is proposed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an ultra-quiet diesel generator set with the advantages of strong targeting, good shock absorption effect and low noise, so as to solve the problem proposed in the above background technology that the vibration is transmitted to the bracket through the diesel generator set, which may cause the bracket to vibrate. When the vibration of the bracket reaches a certain frequency, it may resonate with other components of the generator set or the surrounding environment, which will amplify the vibration and cause greater noise.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An ultra-quiet diesel generator set, comprising a bracket, a diesel generator set body is arranged on the top surface of the bracket, the diesel generator set body includes a diesel engine, a generator body and a control module, the diesel engine is arranged on the top surface of the bracket, and is used to convert the chemical energy of diesel into mechanical energy, the generator body is installed on one side of the diesel engine, and is used to generate electricity using mechanical energy, the control module is installed on the top surface of the generator body, and is used to control the diesel engine and the generator body; a noise reduction mechanism, the noise reduction mechanism is arranged inside the bracket, and is used to reduce the noise of the diesel generator set body; a hoisting mechanism, the hoisting mechanism is arranged on the The two sides of the bracket are used to hoist the diesel engine body; the noise reduction mechanism includes two cross beams, both of which are fixedly installed inside the bracket, and a damper for shock absorption is fixedly installed on the top surface of the cross beam, and a top block is fixedly installed on the top surface of the damper movable shaft, and a connecting ring is slidably connected to the outer circular wall of the damper, and a spring 2 is slidably connected to the outer circular wall of the damper. Two supporting grooves are provided on the top surface of the cross beam, and a supporting column is fixedly installed inside the support groove, and a slider 2 is slidably connected to the outside of the support column, and the outer circular wall of the top block is rotatably connected to two connecting rods 1, and one end of the connecting rod 1 is rotatably connected to the top surface of the slider 2.

[0007] The cam is fixedly mounted on two supporting plates, and the cam is fixedly mounted on two supporting plates at the top and bottom of the supporting plates, and the cam is fixedly mounted on two supporting plates at the top and bottom of the supporting plates, and the cam is fixedly mounted on two supporting plates at the top and bottom of the supporting plates, The top of the gear train is meshed with two opposite ends of the gear train, and the two gear trains are connected along the length of the gear train to form a round shank, and the two gear trains are connected along the length of the gear train to form a round shank.

[0008] Furthermore, a connecting bar is fixedly mounted on the top surface of the positioning frame, a supporting ring is fixedly mounted on the top surface of the connecting bar, and an inner circular wall surface of the supporting ring is rotatably connected to an outer circular wall surface of the connecting roller.

[0009] Furthermore, a plurality of porous silencer plates are rotatably connected to the top surface of the bracket, and two support plates are rotatably connected to one side of the porous silencer plate on the right side, and a spring for resetting the support plates is fixedly installed between the two support plates. A fixing frame is fixedly installed on one side of the porous silencer plate on the left side, and a clamping block is fixedly installed on the top surface of the support plate, and the clamping block is movably clamped to the fixing frame.

[0010] The cam is fixedly mounted on two opposite sides of the frame, and the cam is mounted on two opposite sides of the frame, wherein the cam is mounted on two opposite sides of the frame, and the cam is mounted on two opposite sides of the frame.

[0011] Furthermore, a limiting rod is fixedly installed on one side of the interior of the fixing frame, one side of the limiting rod is fixedly connected to one side of the second supporting block, and the second supporting block is slidably connected to the limiting rod.

[0012] Furthermore, baffles are fixedly installed on the bottom surface of the diesel engine and the bottom surface of the generator body, two support blocks 1 are fixedly installed on the top surface of the bracket, a slide groove 1 is provided on the top surface of the support block 1, and two sliders 1 are fixedly installed on the bottom surface of the baffle, and the slider 1 is slidably connected to the slide groove 1.

[0013] Furthermore, a slide groove 2 is opened on one side of the interior of the slide groove 1, and a mounting bracket is fixedly installed on one side of the slider 1. The mounting bracket is slidingly connected to the slide groove 2, and a roller for improving the movement stability of the slider 1 is rotatably connected to the interior of the mounting bracket through a rotating shaft.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The diesel engine body, top block, damper, spring 2, support block 3, connecting rod 1, slider 2, support column, buffer head, movable rod, support cylinder, piston, overflow hole, airbag and spring 3 cooperate with each other to reduce vibration of the diesel engine body; the stroke of the damper and spring 2 can be shortened and locked by cooperating with each other, when the diesel engine body vibrates at a low frequency, the stroke of the damper and spring 2 is longer, which better reduces vibration of the diesel engine body and reduces noise when the diesel engine body is in use, thereby achieving noise reduction effect of the diesel engine body and realizing ultra-quiet effect of the diesel engine body, making it convenient for staff to use the diesel engine body to generate electricity.

[0016] 2. By cooperating with the diesel engine body and the porous silencer, the porous silencer can be used to reduce noise. By cooperating with the support plate, the porous silencer, the spring 1, the clamping block and the fixing frame, the porous silencer can be rotated outward and the diesel engine body can be inspected. Under normal conditions, the two sets of support plates and the clamping block can lock the two porous silencers, and then the porous silencer can be used to reduce the noise of the diesel engine body, thereby reducing noise during the noise transmission process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 This is a structural schematic diagram of a support block according to the present invention;

[0019] Figure 3 for Figure 2 Schematic diagram of the local structure of A;

[0020] Figure 4 It is a schematic diagram of the crossbeam structure of the present invention;

[0021] Figure 5 It is a bottom view schematic diagram of the hoisting mechanism of the present invention;

[0022] Figure 6 This is a structural diagram of a slider according to the present invention;

[0023] Figure 7 This is a schematic diagram of the support groove structure of the present invention;

[0024] Figure 8 for Figure 7 Schematic diagram of the local structure of B;

[0025] Figure 9 It is a schematic diagram of the top block structure of the present invention;

[0026] Figure 10 for Figure 9 Schematic diagram of the local structure of C;

[0027] Figure 11 This is a schematic diagram of the support column structure of the present invention;

[0028] Figure 12 Schematic diagram of the piston structure of the present invention;

[0029] Figure 13 It is a schematic cross-sectional view of the support tube structure of the present invention.

[0030] In the figure: 1. bracket; 2. diesel generator set body; 3. diesel engine; 4. generator body; 5. control module; 6. noise reduction mechanism; 7. lifting mechanism; 8. connecting hole; 9. porous silencer; 10. baffle; 11. support block 1; 12. support plate; 13. spring 1; 14. fixing frame; 15. clamping block; 16. crossbeam; 17. airbag; 18. fixing frame; 19. connecting rod; 20. umbrella-shaped gear 1; 21. knob; 22. screw rod; 23. bearing seat; 24. limit rod; 25. support block 2; 26. umbrella-shaped gear 2; 27. support rod; 28. clamping plate; 29. support hole; 30. support hoop; 31. slide 1; 32. slide block 1; 33. slide 2; 34. installation Frame; 35. Roller; 36. Support groove; 37. Top block; 38. Damper; 39. Spring 2; 40. Support block 3; 41. Connecting rod 1; 42. Support column; 43. Mounting rod; 44. Spring 3; 45. Slider 2; 46. Positioning frame; 47. Tooth plate; 48. Connecting rod 3; 49. Positioning block 1; 50. Connecting rod 2; 51. Connecting ring; 52. Positioning block 2; 53. Drive motor; 54. Gear; 55. Connecting roller; 56. Support ring; 57. Connecting strip; 58. Card; 59. Support roller; 60. Fixed strip; 61. Electric push rod; 62. Support cylinder; 63. Sealing ring; 64. Movable rod; 65. Piston; 66. Overflow hole; 67. Buffer head; 68. Support tube. DETAILED DESCRIPTION

[0031] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] In a typical implementation of this application, please refer to Figures 1 to 13 An ultra-quiet diesel generator set includes a bracket 1, a diesel generator set body 2 is provided on the top surface of the bracket 1, and the diesel generator set body 2 includes a diesel engine 3, a generator body 4 and a control module 5. The diesel engine 3 is provided on the top surface of the bracket 1 and is used to convert the chemical energy of diesel into mechanical energy. The generator body 4 is installed on one side of the diesel engine 3 and is used to generate electricity using mechanical energy. The control module 5 is installed on the top surface of the generator body 4 and is used to control the diesel engine 3 and the generator body 4.

[0033] The diesel generator set body 2 also includes a heat dissipation system, a fuel system and a starting system. The heat dissipation tin bar includes a heat dissipation water tank, a fan, etc., which are used to cool the generator set to prevent overheating. The fuel system includes a fuel tank, an oil pump, a filter, an injector, etc., which is responsible for storing and delivering fuel to the engine. The starting system usually includes a starter motor and a battery.

[0034] The noise reduction mechanism 6 is arranged inside the bracket 1 to reduce the noise of the diesel generator set body 2. The hoisting mechanism 7 is arranged on both sides of the bracket 1 to hoist the diesel generator set body 2.

[0035] The noise reduction mechanism 6 includes two cross beams 16, both cross beams 16 are fixedly mounted inside the bracket 1, a damper 38 for shock absorption is fixedly mounted on the top surface of the cross beam 16, a top block 37 is fixedly mounted on the top surface of the movable shaft of the damper 38, the top surfaces of the two top blocks 37 are fixedly connected to the bottom surfaces of the diesel engine 3 and the generator body 4 respectively, the outer circular wall surface of the damper 38 is slidably connected to a connecting ring 51, the outer circular wall surface of the damper 38 is slidably connected to a spring 2 39, one end of the spring 2 39 is fixedly connected to the top surface of the connecting ring 51, and the spring 2 39 is fixedly connected to the top surface of the connecting ring 51. The other end of 9 is fixedly connected to the bottom surface of the top block 37, and the top surface of the crossbeam 16 is provided with two support grooves 36. The support grooves 36 are fixedly installed with support columns 42. The outside of the support columns 42 is slidably connected with a slider 2 45. The outer circular wall surface of the top block 37 is rotatably connected to two connecting rods 1 41. One end of the connecting rod 1 41 is rotatably connected to the top surface of the slider 2 45. The outer circular wall surface of the top block 37 and the top surface of the connecting rod 1 41 are fixedly installed with two support blocks 3 40. Both ends of the connecting rod 1 41 are rotatably connected to the two support blocks 3 40 through a rotating shaft.

[0036] In the process of generating electricity, the diesel generator set body 2 will vibrate. The vibration of the diesel generator set body 2 causes the movable shaft of the damper 38 to move downward. The downward movement of the movable shaft of the damper 38 compresses the second spring 39. The compression of the second spring 39 absorbs the vibration of the diesel generator set body 2. The downward movement of the movable shaft of the damper 38 also causes the top block 37 to drive the connecting rod 1 41 to rotate downward. The downward rotation of the connecting rod 1 41 drives the second slider 45 to move outward along the support column 42. The damper 38 consumes the kinetic energy accumulated in the second spring 39 through damping, reducing the rebound amplitude of the second spring 39, thereby reducing the vibration of the diesel generator set body 2 and preventing the bracket 1 from vibrating due to the vibration of the diesel generator set body 2.

[0037] The noise reduction mechanism 6 also includes two positioning frames 46, which are respectively fixedly mounted on the bottom surfaces of the two beams 16. Two mounting rods 43 for limiting the movement of the second slider 45 are fixedly mounted inside the support groove 36. The second slider 45 is slidably connected to the mounting rod 43. The outer circular wall surface of the mounting rod 43 is provided with a spring 3 44 for absorbing vibration. One end of the spring 3 44 is fixedly connected to one side of the second slider 45, and the other end of the spring 3 44 is fixedly connected to one side of the inner side of the support groove 36.

[0038] When the slider 2 45 moves outward along the support column 42 , it moves along the two mounting rods 43 and compresses the spring 3 44 . The compression of the spring 3 44 further absorbs the vibration of the diesel engine body 2 and better filters the vibration of the bracket 1 .

[0039] The top surface of the support column 42 is provided with a plurality of support cylinders 62, the interior of the support cylinder 62 is perfused with oil for consuming kinetic energy, the inner top surface of the support cylinder 62 is fixedly provided with a support tube 68, the outer circular wall surface of the support tube 68 is provided with a plurality of connecting holes 8, the oil inside the support cylinder 62 is higher than the connecting hole 8, and the connecting hole 8 is used to allow the oil to flow back, the top surface of the support cylinder 62 is fixedly provided with a sealing ring 63, the inner circular wall surface of the sealing ring 63 is slidably connected with a movable rod 64, the sealing ring 63 can seal the support cylinder 62 to prevent the oil therein from leaking, the top surface of the movable rod 64 is fixedly provided with a buffer head 67, the buffer head 67 is higher than the top surface of the support column 42, the bottom surface of the movable rod 64 is fixedly provided with a piston 65, the outer circular wall surface of the piston 65 is slidably connected with the inner circular wall surface of the support tube 68, the top surface of the piston 65 is provided with a plurality of overflow holes 66 for passing the oil, and the inner bottom surface of the support cylinder 62 is fixedly provided with an air bag 17;

[0040] In the process of the slider 2 45 moving outward along the support column 42 due to vibration, the multiple buffer heads 67 will be squeezed in sequence. The buffer heads 67 will move downward due to the squeezing. The downward movement of the buffer heads 67 drives the movable rod 64 and the piston 65 to move downward to squeeze the oil so that it flows upward through the overflow hole 66. The squeezing of the piston 65 also causes part of the oil to flow upward in the gap between the support cylinder 62 and the support tube 68. The upward flowing oil squeezes the air and returns to the inside of the support tube 68 through the connecting hole 8. The oil flowing back to the inside of the support tube 68 will fall on the piston 65, further consuming the kinetic energy of the buffer head 67 from the slider 2 45.

[0041] At the same time, when the slider 2 45 is reset due to the rebound of the spring 3 44 , it will also squeeze the multiple buffer heads 67 in sequence, thereby consuming the kinetic energy of the spring 3 44 , reducing the rebound of the spring 3 44 , and better reducing the shock of the diesel unit body 2 ;

[0042] The interior of the positioning frame 46 is rotatably connected to two gears 54 through a connecting roller 55, and the inner circumferential wall surfaces of the two gears 54 are fixedly sleeved with a connecting roller 55, one end of the connecting roller 55 is rotatably connected to one side of the inner side of the positioning frame 46 through a bearing, and the connecting roller 55 supports the two gears 54. A driving motor 53 for driving the gear 54 to rotate is installed on one side of the positioning frame 46, and one end of the driving shaft of the driving motor 53 passes through the positioning frame 46 and is fixedly connected to one end of the connecting roller 55. The outer circumferential wall surface of the gear 54 is meshed and connected with a toothed plate 47, and the top of the toothed plate 47 passes through the crossbeam 16 and is fixedly connected to the bottom surface of the connecting ring 51. Two positioning blocks 49 are fixedly installed on one side of the toothed plate 47, and the two positioning blocks 49 are rotatably connected with a connecting rod 2 50 through a rotating shaft. One end of the connecting rod 2 50 is rotatably connected to a connecting rod 3 48 through a rotating shaft. Two positioning blocks 2 52 are fixedly installed on the inner bottom surface of the positioning frame 46, and one end of the connecting rod 3 48 is rotatably connected to the two positioning blocks 2 52 through a rotating shaft;

[0043] A support roller 59 is fixedly installed inside the positioning frame 46. The outer cylindrical wall of the support roller 59 is rotatably connected to two clamping plates 58 via bearings. One end of the clamping plate 58 is clamped into a groove on the gear plate 47. A fixing bar 60 is fixedly installed between the two clamping plates 58. An electric push rod 61 for driving the fixing bar 60 to move is fixedly installed on the bottom surface of the positioning frame 46. The telescopic shaft of the electric push rod 61 is rotatably connected to the bottom surface of the fixing bar 60 via a rotating seat.

[0044] Among them, when the rotation speed of the bracket 1 is low, the vibration frequency of the bracket 1 is low and the noise generated is low-frequency noise. At this time, the damper 38 and the spring 2 39 are in place and have a longer stroke, which can better handle the low-frequency vibration of the diesel unit body 2, prevent the bracket 1 from vibrating at a low frequency, and thus handle the low-frequency noise;

[0045] When the speed of the diesel engine body 2 is high, the vibration frequency of the diesel engine body 2 is high, causing the bracket 1 to vibrate at a high frequency. The noise generated by the high-frequency vibration of the bracket 1 is a high-frequency noise. The staff starts the drive motor 53, and the drive shaft of the drive motor 53 rotates to drive the two gears 54 to rotate. The rotation of the gear 54 drives the gear plate 47 to move upward. The upward movement of the gear plate 47 drives the connecting ring 51 to move upward along the damper 38, and at the same time, the spring 2 39 is compressed. At this time, the staff starts the telescopic shaft of the electric push rod 61 to move outward, causing the card plate 58 to rotate inward around the support roller 59, and at the same time, one end of the card plate 58 is clamped inside the gear plate 47, so that the card plate 58 is used to lock the position of the gear plate 47, preventing the spring 2 39 and the connecting ring 51 from moving downward along the damper 38, locking the stroke of the damper 38 and the spring 2 39;

[0046] The compression of the second spring 39 shortens the stroke of the second spring 39 and the damper 38. The shortened stroke of the damper 38 and the second spring 39 enables them to respond to the vibration of the bracket 1 more quickly, thereby avoiding resonance between the high-frequency vibration of the bracket 1 and the vibration of the diesel engine body 2, and reducing the noise of the diesel engine body 2.

[0047] With the above technical features, the diesel unit body 2 is provided. During the use of the diesel unit body 2, the internal combustion process and mechanical movement of the diesel engine 3 will cause the diesel unit body 2 to vibrate, and the diesel unit body 2 drives the bracket 1 to vibrate. The vibration of the bracket 1 resonates with the diesel unit body 2, which will increase the noise during the operation of the diesel unit body 2.

[0048] The vibration frequency of the bracket 1 is linearly related to the rotational speed of the generator body 4 on the diesel engine body 2. Taking a four-pole generator as an example, when the rotational speed is 1500 rpm, the output frequency is 50 Hz, which is a low frequency, and when the rotational speed is 1800 rpm, the output frequency is 60 Hz, which is a high frequency.

[0049] When the diesel engine body 2 generates low-frequency vibration, the vibration of the diesel engine body 2 drives the top block 37 to vibrate, and the vibration of the top block 37 causes the movable shaft of the damper 38 to move downward. The downward movement of the movable shaft of the damper 38 compresses the second spring 39. The compression of the second spring 39 initially absorbs the vibration of the diesel engine body 2. After moving downward, the movable shaft of the damper 38 rebounds to consume the kinetic energy accumulated in the second spring 39, reducing the rebound amplitude of the second spring 39, and initially cushioning the diesel engine body 2, thereby preventing the vibration of the diesel engine body 2 from being transmitted to the bracket 1;

[0050] On the other hand, the downward movement of the top block 37 also causes the support block 3 40 to drive the connecting rod 1 41 to rotate outward. The outward rotation of the connecting rod 1 41 causes the slider 2 45 to move outward along the support column 42 and the two mounting rods 43, while compressing the spring 3 44. The mounting rod 43 can limit the movement of the slider 2 45. The compressed spring 3 44 again absorbs the vibration of the diesel unit body 2.

[0051] When the slider 2 45 moves outward along the support column 42, the buffer head 67 will be squeezed. The buffer head 67 will move downward under the squeezing. The downward movement of the buffer head 67 drives the movable rod 64 to move downward inside the support cylinder 62 to squeeze the oil therein. The oil will flow upward through the overflow hole 66 on the piston 65 under the squeezing. The oil will consume the kinetic energy of the buffer head 67 from the slider 2 45. The oil squeezed by the piston 65 will flow upward in the gap between the support cylinder 62 and the support tube 68. The upward-flowing oil will return to the interior of the support tube 68 through multiple connecting holes 8. The refluxed oil falls on the piston 65 and consumes the kinetic energy of the buffer head 67 again. The buffer head 67 continues to move downward to squeeze the airbag 17. The airbag 17 will be deformed under the squeezing and will further absorb the kinetic energy of the buffer head 67.

[0052] The second slider 45 moves outward along the support column 42 and sequentially squeezes the plurality of buffer heads 67 . The buffer heads 67 consume the kinetic energy of the second slider 45 , shortening the movement path of the second slider 45 on the support column 42 and also shortening the compression range of the third spring 44 .

[0053] When the second slider 45 moves inward and resets due to the rebound of the third spring 44, it will squeeze the multiple buffer heads 67 again. The buffer heads 67 squeeze the oil through the movable rod 64 and the piston 65 to reduce the amplitude of the movement of the second slider 45 due to the rebound of the third spring 44, thereby further reducing the vibration of the diesel unit body 2. At this time, the stroke of the damper 38 and the second spring 39 is long, which is suitable for damping low-frequency vibrations and reducing the generation of low-frequency noise.

[0054] When the speed of the diesel engine body 2 is increased to 1800 rpm, the diesel engine body 2 will vibrate at a high frequency. After reaching the speed, the control module 5 starts the drive motor 53 according to the speed of the generator body 4. The drive shaft of the drive motor 53 rotates to drive the connecting roller 55 to rotate. The rotation of the connecting roller 55 drives the two gears 54 to rotate. The rotation of the gear 54 causes the tooth plate 47 to move upward. The upward movement of the tooth plate 47 causes the positioning block 1 49 to drive the connecting rod 2 50 to move upward. The upward rotation of the connecting rod 2 50 drives the connecting rod 3 48 to rotate upward inside the positioning block 2 52. The connecting rod 2 50 and the connecting rod 3 48 can support the movement of the tooth plate 47. The upward movement of the tooth plate 47 drives the connecting ring 51 to move upward along the damper 38 while compressing the spring 2 39. At this time, the stroke of the damper 38 and the spring 2 39 is shortened.

[0055] Then, the staff activates the electric push rod 61. The telescopic shaft of the electric push rod 61 moves upward, driving the fixing bar 60 to rotate upward. The upward rotation of the fixing bar 60 causes the clamping plate 58 to rotate inward around the support roller 59. The support roller 59 rotates inward so that its front end engages with the groove on the tooth plate 47, thereby locking the position of the tooth plate 47 and further locking the travel of the damper 38 and the spring 2 39.

[0056] After the stroke of the damper 38 and the second spring 39 is shortened, it can respond more quickly to the high-frequency vibration of the diesel engine body 2. At this time, the vibration of the diesel engine body 2 causes the movable shaft of the damper 38 to move downward and the second spring 39 to be compressed. The downward movement of the movable shaft of the damper 38 drives the top block 37 to move downward. The downward movement of the top block 37 causes the connecting rod 1 41 to drive the second slider 45 to move outward along the support column 42. The outward movement of the second slider 45 also moves outward along the mounting rod 43 and compresses the third spring 44. The second slider 45 moves outward along the support column 42 to squeeze multiple buffer heads 67 in sequence. The buffer heads 67 squeeze the oil and airbag 17 inside the support cylinder 62 through the movable rod 64 and the piston 65, consume the kinetic energy of the second slider 45, and shorten its movement path on the support column 42.

[0057] When the slider 2 45 moves outward due to the rebound of the spring 3 44 , it will squeeze the multiple buffer heads 67 again. At this time, the buffer heads 67 will reduce the rebound of the slider 2 45, reduce the vibration of the diesel unit body 2, and prevent the high-frequency vibration of the diesel unit body 2 from being transmitted to the bracket 1, thereby preventing the high-frequency vibration of the bracket 1 from aggravating the noise of the diesel unit body 2 during use and avoiding the generation of high-frequency noise;

[0058] In this process, by understanding the relationship between the rotational speed and frequency of the generator body 4 in the diesel unit body 2, the vibration of the diesel unit body 2 can be divided into low-frequency vibration and high-frequency vibration. When the diesel unit body 2 vibrates at a low frequency, the stroke of the damper 38 and the second spring 39 is longer, which better reduces the vibration of the diesel unit body 2 and prevents the low-frequency vibration from amplifying the noise of the diesel unit body 2; on the other hand, when facing high-frequency vibration, the stroke of the damper 38 and the second spring 39 is shortened by moving the second spring 39 and the third connecting rod 48 upward, and then the stroke is locked by the clamping plate 58. The shortening of the stroke can respond to the high-frequency vibration more quickly, prevent the high-frequency vibration from being transmitted to the bracket 1, and avoid the high-frequency vibration from resonating with the air. Different processing methods are adopted for different noises to reduce the noise of the diesel unit body 2 when in use, achieve the noise reduction effect of the diesel unit body 2, realize the ultra-quiet effect of the diesel unit body 2, and facilitate the staff to use the diesel unit body 2 to generate electricity;

[0059] A connecting bar 57 is fixedly installed on the top surface of the positioning frame 46, and a support ring 56 is fixedly installed on the top surface of the connecting bar 57. The inner circular wall surface of the support ring 56 is rotatably connected to the outer circular wall surface of the connecting roller 55. The support ring 56 and the connecting bar 57 can support the connecting roller 55 to prevent the gear 54 from shaking during rotation, thereby improving the stability of the rotation of the gear 54.

[0060] Specifically, the support ring 56 and the connecting bar 57 are provided to limit the rotation of the connecting roller 55, thereby reducing the shaking of the connecting roller 55 and thus reducing the shaking of the gear 54, thereby improving the stability of the rotation of the gear 54;

[0061] The top surface of the bracket 1 is connected to a plurality of porous silencer plates 9 by rotating the shaft. When the noise of the diesel engine body 2 passes through the holes on the porous silencer plate 9, the noise will be reflected in the holes on the porous silencer plate 9 to reduce the noise. One side of the porous silencer plate 9 on the right side is connected to two support plates 12 by rotating the shaft. A spring 13 for returning the support plate 12 is fixedly installed between the two support plates 12. A fixing frame 14 is fixedly installed on one side of the porous silencer plate 9 on the left side. A clamping block 15 is fixedly installed on the top surface of the support plate 12. The clamping block 15 is fixedly installed with the fixing frame 1 4. The movable clamping block 15 is arc-shaped to prevent the support plate 12 and the clamping block 15 from interfering with the fixed frame 14 in movement. The diesel engine body 2 on the bracket 1 will generate noise during use. The noise will be transmitted outward through the multiple porous silencer plates 9. The porous silencer plates 9 can weaken the noise. When the staff is repairing the diesel engine body 2, the staff squeezes the two support plates 12 to separate the clamping block 15 on the support plate 12 from the fixed frame 14, and then the staff rotates the two porous silencer plates 9 outward to facilitate the repair of the diesel engine body 2.

[0062] Specifically, through the arrangement of the diesel engine body 2, the diesel engine body 2 will generate noise during use. During the process of the noise propagating outward, the noise will enter the holes on the porous silencer plate 9. The noise will be reflected in the holes on the porous silencer plate 9 to weaken the noise. When the diesel engine body 2 needs to be repaired, the staff squeezes the two support plates 12. The two support plates 12 will rotate inward under the squeezing, and at the same time, the spring 13 will be compressed. The inward rotation of the support plate 12 will drive the clamping block 15 to move inward. The staff moves the clamping block 15 to the outside of the fixed frame 14 by squeezing the two support plates 12, and then the staff rotates the porous silencer plate 9 outward and repairs the diesel engine body 2. Under normal conditions, the two groups of support plates 12 and the clamping block 15 can lock the two porous silencer plates 9, and then use the porous silencer plate 9 to reduce the noise of the diesel engine body 2, thereby reducing the noise during the noise propagation process and achieving ultra-quietness.

[0063] As a preferred implementation in this embodiment, please refer to Figures 1 to 9The lifting mechanism 7 includes several fixing frames 18, which are fixedly mounted on both sides of the bracket 1 respectively. A support hoop 30 is fixedly mounted on the bottom surface of the fixing frame 18. Two support holes 29 are provided on the outer wall surface of the support hoop 30. A clamping plate 28 for abutting the hook is slidably connected between the two support holes 29. A bearing seat 23 is fixedly mounted on the inner top surface of the fixing frame 18. The inner part of the bearing seat 23 is rotatably connected to a screw rod 22. One end of the screw rod 22 is rotatably connected to the inner side of the fixing frame 18 through a bearing. The screw rod 22 The outer circumferential wall surface of the support block 25 is threadedly connected, and a support rod 27 is fixedly installed on one side of the support block 25. One end of the support rod 27 passes through the support hoop 30 and is fixedly connected to the outer circumferential wall surface of the splint 28. One end of the screw rod 22 is fixedly installed with an umbrella tooth 26. The outer circumferential wall surface of the umbrella tooth 26 is meshed with the umbrella tooth 1 20. The top surface of the fixed frame 18 is rotatably connected to the connecting rod 19 through a bearing. The bottom surface of the connecting rod 19 is fixedly connected to the top surface of the umbrella tooth 1 20. The other end of the connecting rod 19 is fixedly mounted with a knob 21.

[0064] During the process of lifting the bracket 1 and the diesel generator set body 2, the worker hangs the hook on the support hoop 30 and turns the knob 21. The rotation of the knob 21 drives the umbrella tooth 1 20 to rotate through the connecting rod 19. The rotation of the umbrella tooth 1 20 drives the umbrella tooth 2 26 to rotate. The rotation of the umbrella tooth 26 drives the screw rod 22 to rotate. The rotation of the screw rod 22 causes the support block 25 to drive the support rod 27 to move inward. The inward movement of the support rod 27 drives the clamping plate 28 to move forward inside the support hole 29 until it abuts against the hook, thereby restricting the hook and preventing it from shaking when lifting the bracket 1 and the diesel generator set body 2.

[0065] Specifically, through the provided bracket 1 and the diesel unit body 2, the staff hangs the hook inside the support hoop 30 during the process of hoisting the bracket 1 and the diesel unit body 2, and the staff turns the knob 21. The rotation of the knob 21 drives the connecting rod 19 to rotate, and the rotation of the connecting rod 19 drives the umbrella gear 1 20 to rotate. The rotation of the umbrella gear 1 20 drives the umbrella gear 2 26 to rotate. The rotation of the umbrella gear 26 drives the screw rod 22 to rotate. The rotation of the screw rod 22 causes the support block 25 to move inward along the screw rod 22. The inward movement of the support block 25 drives the support rod 27 to move inward. The inward movement of the support rod 27 drives the splint 28 to move inward inside the support hole 29 on the support hoop 30 until it abuts against the hook. At this time, the splint 28 can limit the hook to prevent the hook from sliding on the support hoop 30, thereby preventing the bracket 1 and the diesel unit body 2 from shaking due to the sliding of the hook during the installation process;

[0066] A limit rod 24 is fixedly installed on one side of the interior of the fixing frame 18. One side of the limit rod 24 is fixedly connected to one side of the second support block 25. The second support block 25 is slidably connected to the limit rod 24.

[0067] Specifically, by setting the support block 25, the support block 25 will move along the limit rod 24 during the movement along the screw rod 22. The limit rod 24 can limit the movement of the support block 25, thereby achieving a limiting effect on the support block 25.

[0068] The bottom surface of the diesel engine 3 and the bottom surface of the generator body 4 are both fixedly mounted with a baffle 10, the top surface of the bracket 1 is fixedly mounted with two support blocks 11, the top surface of the support block 11 is provided with a slide groove 31, and the bottom surface of the baffle 10 is fixedly mounted with two sliders 32, which are slidably connected to the slide groove 31. The vibration of the diesel unit body 2 causes the slider 32 to move inside the slide groove 31 on the support block 11. The slide groove 31 and the slider 32 cooperate to limit the movement of the diesel unit body 2. The slide groove 31 and the slider 32 are both T-shaped structures, and the two cooperate with each other to improve the stability of the diesel unit body 2 when it moves up and down due to vibration;

[0069] Specifically, by setting the diesel unit body 2, the diesel unit body 2 vibrates, so that the baffle 10 drives the slider 1 32 to move inside the slide groove 1 31 on the support block 11. The slide groove 1 31 and the slider 1 32 cooperate to limit the movement of the diesel unit body 2, thereby preventing the diesel unit body 2 from shaking laterally and improving the stability of the diesel unit body 2 when it moves up and down due to vibration.

[0070] A second slide groove 33 is formed on one side of the interior of the first slide groove 31. A mounting bracket 34 is fixedly mounted on one side of the first slider 32. The mounting bracket 34 is slidably connected to the second slide groove 33. A roller 35 for improving the movement stability of the first slider 32 is rotatably connected to the interior of the mounting bracket 34 via a rotating shaft. The movement of the first slider 32 in the first slide groove 31 causes the roller 35 to roll along the inner side of the second slide groove 33. The mounting bracket 34 and the roller 35 cooperate to reduce the friction between the first slider 32 and the support block 11.

[0071] Specifically, by setting the diesel engine body 2, the diesel engine body 2 vibrates so that the slider 32 moves inside the slide groove 31 on the support block 11. The movement of the slider 32 causes the mounting frame 34 to drive the internal movement of the slide groove 2 33 and at the same time causes the roller 35 to roll along the inner side of the slide groove 2 33. The mounting frame 34 and the roller 35 cooperate to improve the smoothness of the movement of the slider 32 inside the slide groove 31 and reduce the friction between the slider 32 and the support block 11.

[0072] Working principle: Through the provided bracket 1, in the process of lifting the bracket 1 and the diesel unit body 2, the staff hangs the hook on the support hoop 30, and the staff turns the knob 21. The rotation of the knob 21 drives the umbrella tooth 1 20 to rotate through the connecting rod 19. The rotation of the umbrella tooth 1 20 drives the umbrella tooth 2 26 to rotate. The rotation of the umbrella tooth 26 drives the screw rod 22 to rotate. The rotation of the screw rod 22 causes the support block 25 to drive the support rod 27 to move inward. The inward movement of the support rod 27 drives the splint 28 to move forward inside the support hole 29 until it abuts against the hook, thereby restricting the hook to prevent the hook from shaking when lifting the bracket 1 and the diesel unit body 2, making it convenient for the staff to install the lifting bracket 1 and the diesel unit body 2

[0073] Secondly, the diesel engine body 2 on the bracket 1 will vibrate during use due to mechanical rotation and diesel combustion. The vibration of the diesel engine body 2 causes the slider 1 32 to move inside the slide groove 1 31 on the support block 11. The slide groove 1 31 and the slider 1 32 cooperate to limit the movement of the diesel engine body 2. The movement of the slider 1 32 inside the slide groove 1 31 causes the roller 35 to roll along the inner side of the slide groove 2 33. The mounting bracket 34 and the roller 35 cooperate to reduce the friction between the slider 1 32 and the support block 11.

[0074] At the same time, the vibration of the diesel engine body 2 is divided into low-frequency vibration and high-frequency vibration according to the rotation speed of the generator body 4. During low-frequency vibration, the vibration of the diesel engine body 2 causes the movable shaft of the damper 38 to move downward. The downward movement of the movable shaft of the damper 38 causes the second spring 39 to be compressed. The compression of the second spring 39 absorbs the vibration of the diesel engine body 2. The downward movement of the movable shaft of the damper 38 also causes the top block 37 to drive the connecting rod 1 41 to rotate downward. The downward rotation of the connecting rod 1 41 drives the second slider 45 to move outward along the support column 42. The damper 38 consumes the kinetic energy accumulated in the second spring 39 through damping, reducing the rebound amplitude of the second spring 39, thereby reducing the vibration of the diesel engine body 2 and preventing the bracket 1 from vibrating due to the vibration of the diesel engine body 2.

[0075] When the slider 2 45 moves outward along the support column 42 due to vibration, it will squeeze multiple buffer heads 67 in sequence. The buffer heads 67 will move downward due to the squeezing. The downward movement of the buffer heads 67 drives the movable rod 64 and the piston 65 to move downward to squeeze the oil and the air bag 17 to consume the kinetic energy of the spring 3 44, reduce the rebound of the spring 3 44, and better absorb the shock of the diesel unit body 2. At this time, the damper 38 and the spring 2 39 are in place, with a longer stroke, which can better handle the low-frequency vibration of the diesel unit body 2, prevent the low-frequency vibration of the bracket 1, and reduce the generation of low-frequency noise;

[0076] On the other hand, when the speed of the diesel engine body 2 is high, the vibration frequency of the diesel engine body 2 is high, causing the bracket 1 to vibrate at a high frequency. The noise generated by the high-frequency vibration of the bracket 1 is high-frequency noise. The staff starts the drive motor 53. The drive shaft of the drive motor 53 rotates, driving the two gears 54 to rotate. The rotation of the gears 54 drives the gear plate 47 to move upward. The upward movement of the gear plate 47 drives the connecting ring 51 to move upward along the damper 38, and at the same time, the spring 2 39 is compressed.

[0077] Then, the telescopic shaft of the electric push rod 61 moves outward, causing the clamping plate 58 to rotate inward around the support roller 59, and at the same time causing one end of the clamping plate 58 to be clamped inside the gear plate 47, thereby locking the stroke of the damper 38 and the second spring 39. The second spring 39 is compressed, causing the stroke of the second spring 39 and the damper 38 to be shortened. The shortened stroke of the damper 38 and the second spring 39 enables them to respond to the vibration of the bracket 1 more quickly, avoiding the resonance of the high-frequency vibration of the bracket 1 with the vibration of the diesel unit body 2, and reducing the noise of the diesel unit body 2.

[0078] Finally, the diesel engine body 2 on the bracket 1 will generate noise during use. In the process of the noise propagating outward through multiple porous silencer plates 9, the porous silencer plates 9 can weaken the noise. When the staff is repairing the diesel engine body 2, the staff squeezes the two support plates 12 so that the clamping block 15 on the support plate 12 is disengaged from the fixed frame 14, and then the staff rotates the two porous silencer plates 9 outward to facilitate the repair of the diesel engine body 2.

[0079] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An ultra-quiet diesel generator set, characterized in that: include: A bracket (1), wherein a diesel engine body (2) is provided on the top surface of the bracket (1), wherein the diesel engine body (2) comprises a diesel engine (3), a generator body (4) and a control module (5), wherein the diesel engine (3) is provided on the top surface of the bracket (1) and is used to convert the chemical energy of diesel into mechanical energy, wherein the generator body (4) is installed on one side of the diesel engine (3) and is used to generate electricity using the mechanical energy, and wherein the control module (5) is installed on the top surface of the generator body (4) and is used to control the diesel engine (3) and the generator body (4); A noise reduction mechanism (6), the noise reduction mechanism (6) being arranged inside the bracket (1) and being used to reduce the noise of the diesel engine unit body (2); A hoisting mechanism (7), the hoisting mechanism (7) being arranged on both sides of the bracket (1) and being used for hoisting the diesel engine unit body (2); The noise reduction mechanism (6) comprises two cross beams (16), both of which are fixedly mounted inside the bracket (1); a damper (38) for shock absorption is fixedly mounted on the top surface of the cross beam (16); a top block (37) is fixedly mounted on the top surface of the movable shaft of the damper (38); a connecting ring (51) is slidably connected to the outer circular wall surface of the damper (38); a spring 2 (39) is slidably connected to the outer circular wall surface of the damper (38); two supporting grooves (36) are provided on the top surface of the cross beam (16); a supporting column (42) is fixedly mounted inside the supporting groove (36); a slider 2 (45) is slidably connected to the outside of the supporting column (42); the outer circular wall surface of the top block (37) is rotatably connected to two connecting rods 1 (41); one end of the connecting rod 1 (41) is rotatably connected to the top surface of the slider 2 (45).

2. The ultra-quiet diesel generator set according to claim 1, characterized in that: The noise reduction mechanism (6) further comprises two positioning frames (46), the two positioning frames (46) being fixedly mounted on the bottom surfaces of the two cross beams (16) respectively, two mounting rods (43) for limiting the movement of the slider 2 (45) being fixedly mounted inside the support groove (36), the slider 2 (45) being slidably connected to the mounting rod (43), the outer circular wall surface of the mounting rod (43) being sleeved with a spring 3 (44) for absorbing vibration, the slider 2 (45) moving outward along the support column (42) will move along the two mounting rods (43) and at the same time cause the spring 3 (44) to be compressed, the spring 3 (44) being compressed further absorbs the vibration of the diesel engine body (2), and better supports the bracket (1) The vibration is filtered, a plurality of support cylinders (62) are installed on the top surface of the support column (42), the interior of the support cylinder (62) is perfused with oil for consuming kinetic energy, a support tube (68) is fixedly installed on the inner top surface of the support cylinder (62), a plurality of connecting holes (8) are opened on the outer circular wall surface of the support tube (68), a sealing ring (63) is fixedly installed on the top surface of the support cylinder (62), the inner circular wall surface of the sealing ring (63) is slidably connected to a movable rod (64), a buffer head (67) is fixedly installed on the top surface of the movable rod (64), a piston (65) is fixedly installed on the bottom surface of the movable rod (64), and the outer circular wall surface of the piston (65) is slidably connected to the inner circular wall surface of the support tube (68). The top surface of the piston (65) is provided with a plurality of overflow holes (66) for passing oil, the inner bottom surface of the support cylinder (62) is fixedly installed with an air bag (17), the interior of the positioning frame (46) is rotatably connected to two gears (54) through a connecting roller (55), a driving motor (53) for driving the gear (54) to rotate is installed on one side of the positioning frame (46), the outer circumferential wall surface of the gear (54) is meshed with a tooth plate (47), the top end of the tooth plate (47) passes through the cross beam (16) and is fixedly connected to the bottom surface of the connecting ring (51), and two positioning blocks (49) are fixedly installed on one side of the tooth plate (47), and the two positioning blocks (49) are rotatably connected to each other. There is a connecting rod 2 (50), one end of which is rotatably connected to a connecting rod 3 (48), two positioning blocks 2 (52) are fixedly installed on the inner bottom surface of the positioning frame (46), one end of which is rotatably connected to the two positioning blocks 2 (52), a supporting roller (59) is fixedly installed inside the positioning frame (46), the outer circular wall surface of the supporting roller (59) is rotatably connected to two clamping plates (58), one end of the clamping plate (58) is clamped with a groove on the tooth plate (47), a fixing bar (60) is fixedly installed between the two clamping plates (58), and an electric push rod (61) for driving the fixing bar (60) to move is fixedly installed on the inner bottom surface of the positioning frame (46).

3. The ultra-quiet diesel generator set according to claim 2, characterized in that: A connecting strip (57) is fixedly mounted on the top surface of the positioning frame (46), a supporting ring (56) is fixedly mounted on the top surface of the connecting strip (57), and the inner circular wall surface of the supporting ring (56) is rotatably connected to the outer circular wall surface of the connecting roller (55).

4. The ultra-quiet diesel generator set according to claim 1, characterized in that: The top surface of the bracket (1) is rotatably connected to a plurality of porous silencer plates (9); one side of the porous silencer plate (9) on the right side is rotatably connected to two support plates (12); a spring (13) for resetting the support plate (12) is fixedly installed between the two support plates (12); a fixing frame (14) is fixedly installed on one side of the porous silencer plate (9) on the left side; a clamping block (15) is fixedly installed on the top surface of the support plate (12); and the clamping block (15) is movably clamped to the fixing frame (14).

5. The ultra-quiet diesel generator set according to claim 1, characterized in that: The hoisting mechanism (7) includes a plurality of fixing frames (18), and the plurality of fixing frames (18) are fixedly mounted on both sides of the bracket (1). A support hoop (30) is fixedly mounted on the bottom surface of the fixing frame (18), and two support holes (29) are provided on the outer wall surface of the support hoop (30). A clamping plate (28) for contacting the hook is slidably connected between the two support holes (29). A bearing seat (23) is fixedly mounted on the inner top surface of the fixing frame (18), and a screw rod (22) is rotatably connected to the inner side of the bearing seat (23). The outer wall surface of the screw rod (22) is threadedly connected to the support block. (25), a support rod (27) is fixedly installed on one side of the support block 2 (25), one end of the support rod (27) passes through the support hoop (30) and is fixedly connected to the outer circular wall surface of the clamping plate (28), one end of the screw rod (22) is fixedly installed with an umbrella tooth 2 (26), the outer circular wall surface of the umbrella tooth 2 (26) is meshedly connected with the umbrella tooth 1 (20), the top surface of the fixed frame (18) is rotatably connected with a connecting rod (19), the bottom surface of the connecting rod (19) is fixedly connected to the top surface of the umbrella tooth 1 (20), and the other end of the connecting rod (19) is fixedly installed with a knob (21).

6. The ultra-quiet diesel generator set according to claim 5, characterized in that: A limiting rod (24) is fixedly installed on one side of the interior of the fixing frame (18), one side of the limiting rod (24) is fixedly connected to one side of the second support block (25), and the second support block (25) is slidably connected to the limiting rod (24).

7. The ultra-quiet diesel generator set according to claim 1, characterized in that: The bottom surface of the diesel engine (3) and the bottom surface of the generator body (4) are both fixedly mounted with a baffle (10); the top surface of the bracket (1) is fixedly mounted with two support blocks (11); the top surface of the support block (11) is provided with a slide groove (31); the bottom surface of the baffle (10) is fixedly mounted with two sliders (32); the sliders (32) are slidably connected to the slide groove (31).

8. The ultra-quiet diesel generator set according to claim 7, characterized in that: A second slide groove (33) is provided on one side of the interior of the first slide groove (31), and a mounting bracket (34) is fixedly installed on one side of the first slider (32). The mounting bracket (34) is slidably connected to the second slide groove (33), and a roller (35) for improving the moving stability of the first slider (32) is rotatably connected to the interior of the mounting bracket (34) via a rotating shaft.

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