An environmentally friendly and low-noise diesel generator set

Abstract

The present invention is directed to the technical field of diesel generators, and more specifically, to an environmentally friendly, low-noise diesel generator set. It comprises a set, the set is provided with a generator, the set is equipped with a heat sink, the set is fixedly connected to a fixed shell, a cooling shell is slidably connected in the fixed shell, an electronically controlled motor is fixed in the fixed shell, a gearbox is installed in the fixed shell, a first gear with a gear shaft is rotatably connected in the fixed shell, the gear shaft of the first gear passes through the adjacent fixed shell and is equipped with a fan. The present invention covers the adjacent heat sinks by means of a fixed shell, and uses a fan to perform multi-stage heat dissipation on the set, so as to prevent the noise generated when the power of the set generator increases from increasing and being discharged through the heat sink, thereby performing real-time automatic balance on the heat dissipation and noise reduction of the set generator, maintaining the most energy-saving heat dissipation while providing the maximum degree of noise reduction for the set generator.

Description

Technical Field

[0001] The present invention relates to the technical field of diesel generators, and more specifically, to an environmentally friendly and low-noise diesel generator set. Background Art

[0002] Diesel generators are widely used in situations where a stable power supply is required. Diesel generators drive pistons to work through diesel combustion, thereby converting thermal energy into mechanical energy, and then converting mechanical energy into electrical energy through a generator. In the process of the diesel engine piston working, diesel explosion, combustion gas discharge, generator vibration and other phenomena will occur. The above phenomena will cause the diesel generator to generate noise. Existing diesel generators use sound-absorbing cotton, mufflers, shock-absorbing pads and other mechanisms to reduce noise. Although the above forms can effectively reduce the noise of diesel generators, since diesel generators generate a lot of heat during operation, it is necessary to set heat dissipation holes on the diesel generator for cooling. This causes part of the noise to be directly discharged to the external environment through the heat dissipation holes, and directly installing sound-absorbing cotton on the heat dissipation holes will cause the heat dissipation efficiency of the diesel generator to decrease. Therefore, existing diesel generators cannot maintain a dynamic balance between the degree of heat dissipation and the degree of noise reduction. Summary of the invention

[0003] In order to overcome the shortcoming that diesel generators cannot maintain a dynamic balance between the degree of heat dissipation and the degree of noise reduction, the present invention provides an environmentally friendly and low-noise diesel generator set.

[0004] The technical solution is: an environmentally friendly and low-noise diesel generator set, including a set, the set is provided with a generator, the set generator is equipped with a centrally symmetrically distributed heat sink, the set generator is fixedly connected with a centrally symmetrically distributed fixed shell near the centrally symmetrically distributed heat sink, a cooling shell connected to it is slidably connected in the fixed shell, the cooling shell is made of sound insulation material, a side of the cooling shell close to the set generator is provided with a plurality of groups of arc-shaped cooling holes, an electronically controlled motor is fixed in the fixed shell, a gearbox is installed in the fixed shell, the gearbox is provided with two output gears, the output shaft of the electronically controlled motor is fixedly connected to the input shaft of the adjacent gearbox, the fixed shell is rotatably connected with a first gear with a gear shaft, the first gear is meshed with an adjacent output gear on the adjacent gearbox, the gear shaft of the first gear passes through the adjacent fixed shell and is equipped with a fan, and a limit assembly for adjusting the position of the centrally symmetrically distributed cooling shell is provided on the set generator.

[0005] It is further explained that the diameters of the arc-shaped cooling holes increase from being away from the adjacent gearbox to being close to it.

[0006] Further description, the limit assembly includes a second gear with a central symmetrical distribution, the second gears with a central symmetrical distribution are respectively rotatably connected to the adjacent fixed housing through a gear shaft, the gear shaft of the second gear is splined with a rotating disk, the rotating disk is located on the outside of the adjacent fixed housing, the rotating disk is rotatably connected with a limit block evenly distributed in the circumferential direction, an elastic member is fixed between the limit block and the adjacent rotating disk, the gear shaft of the second gear is rotatably connected with a third gear, the third gear is provided with all the gears evenly distributed in the circumferential direction and are evenly distributed in the circumferential direction with the adjacent circumferential direction. The limit block is squeezed and fitted with a limit part, the rotating disk is fixedly connected with a sliding sleeve that is evenly distributed in the circumference, a thermistor is arranged in the sliding sleeve, the telescopic end of the sliding sleeve is fixedly connected with a flexible block that is squeezed and fitted with the adjacent limit block, the generator of the unit is fixed with symmetrically distributed resistance bars that are all made of elastic material, the fixed shell is fixed with a first rack that is squeezed and fitted with the adjacent resistance bar, the third gear is meshed with the adjacent first rack, and a cleaning plate is detachably connected to the side of the cooling shell close to the adjacent heat sink, and the cleaning plate is fitted with the adjacent heat sink.

[0007] It is further described that the thickness of the resistance bar gradually increases from a side close to the third gear to a side away from the third gear.

[0008] It is further explained that the expansion amount of the thermal block is always linearly related to the resistance generated by the resistance bar on the adjacent first rack.

[0009] Further explanation: a heat conductive block penetrating the adjacent fixed housing and affixed to the generator of the unit is rotatably connected to the gear shaft of the second gear; the gear shaft of the second gear, the rotating disk and the sliding sleeve are all made of heat conductive materials.

[0010] Further explanation: the lower side of the generator of the unit is fixedly connected with symmetrically distributed supporting feet, the supporting feet are equipped with shock-absorbing pads, the shock-absorbing pads are fixedly connected to the unit, the unit is fixedly connected with an electrically controlled telescopic rod located between the symmetrically distributed shock-absorbing pads, the telescopic end of the electrically controlled telescopic rod is fixedly connected with a limit plate slidably connected to the unit, and the supporting feet are limitedly matched with the limit plate.

[0011] Further description, it also includes a rotating frame, which is fixedly connected to the crankshaft of the generator of the unit, and is provided with a slide groove evenly distributed in the circumferential direction, a sliding block is slidably connected in the slide groove, and a flexible rope is fixed to the sliding block, and the flexible ropes evenly distributed in the circumferential direction are commonly fixed to a rotating block, and the rotating block is rotatably connected to the sliding frame, and a sliding rheostat is installed at a position of the unit near the sliding frame, the sliding vane of the sliding rheostat is fixedly connected to the sliding frame, and the electronic control motor is electrically connected to the sliding rheostat.

[0012] Further description, the generator of the unit is provided with an exhaust duct, the unit is rotatably connected to a rotating tube connected to the exhaust duct of its generator, the upper side of the rotating tube is sealed and rotatably connected to a muffler fixed to the unit, the unit is fixed with a first hydraulic telescopic rod at a position close to the sliding frame, the telescopic end of the first hydraulic telescopic rod is fixed to the sliding frame, the unit is fixed with a second hydraulic telescopic rod at a position close to the muffler, the second hydraulic telescopic rod is connected to the first hydraulic telescopic rod through a conduit, the telescopic end of the second hydraulic telescopic rod is fixed with a second rack, the rotating tube is fixed with a fourth gear meshing with the second rack, a first through hole is provided in the rotating tube, the muffler is provided with a connecting pipe, and the connecting pipe is provided with a second through hole connected and matched with the first through hole.

[0013] Further description: The sliding distance of the slider on the sliding rheostat is the same as the telescopic amount of the telescopic end of the first hydraulic telescopic rod, and the volume in the fixed part of the first hydraulic telescopic rod is the same as the volume in the fixed part of the second hydraulic telescopic rod, and the telescopic length of the telescopic end of the second hydraulic telescopic rod is equal to the arc length of the trajectory of the fourth gear rotating 180°.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: 1. The present invention covers adjacent heat sinks by fixing the housing, and uses a fan to perform multi-stage heat dissipation on the unit, thereby preventing the noise generated when the power of the unit generator increases from increasing and being discharged through the heat sink, thereby achieving a real-time automatic balance between the heat dissipation and noise reduction of the unit generator, maintaining the most energy-saving heat dissipation while providing the maximum degree of noise reduction for the unit generator;

[0015] 2. On this basis, the present invention also provides movement resistance for the adjacent first racks through the resistance strip, so that when the limit block drives the adjacent third gear to rotate through the adjacent limit portion, the resistance provided by the flexible block to the adjacent limit block also needs to be changed, thereby automatically adjusting the covering amount of the fixed housing to the adjacent heat dissipation plate, and performing real-time automatic balance on the heat dissipation and noise reduction of the generator of the unit;

[0016] 3. On this basis, the present invention also supports the two supporting feet through a limit plate to prevent the shock-absorbing pad from being still affected by the gravity of the upper generator after the unit stops using, causing fatigue of the shock-absorbing pad material or even permanent plastic deformation, thereby affecting the shock-absorbing effect of the shock-absorbing pad;

[0017] 4. On this basis, the present invention also prevents smoke from entering the muffler when the unit is running at low power by staggered sealing of the first through hole and the second through hole, thereby reducing the probability of muffler clogging due to carbon smoke accumulation exhausted by the unit's engine, thereby extending the service life of the muffler. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the fixed shell of the present invention;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the heat dissipation plate of the present invention;

[0021] Figure 4 It is a three-dimensional structural cross-sectional view of the fixed housing of the present invention;

[0022] Figure 5 It is a three-dimensional structural cross-sectional view of the cooling shell of the present invention;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotating disk of the present invention;

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the limiting block and the limiting part of the present invention;

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the flexible block of the present invention;

[0026] Fig. 9 It is a schematic diagram of the three-dimensional structure of the limiting plate of the present invention;

[0027] Fig.10 It is a schematic diagram of the three-dimensional structure of the rotating pipe and the muffler of the present invention;

[0028] Fig.11 It is a three-dimensional structural cross-sectional view of the muffler of the present invention;

[0029] Fig.12 It is a three-dimensional structural cross-sectional view of the rotating frame of the present invention;

[0030] Fig.13 It is a three-dimensional structural cross-sectional view of the rotating tube of the present invention.

[0031] Markings in the drawings: 1: unit, 101: heat sink, 102: fixed housing, 103: cooling housing, 1031: cooling hole, 104: electronically controlled motor, 105: gearbox, 106: first gear, 107: fan, 3: limit assembly, 301: second gear, 302: rotating disk, 303: limit block, 304: third gear, 3041: limit part, 305: sliding sleeve, 306: thermal block, 307: flexible block, 308: resistance bar, 309: first rack, 31 0: cleaning plate, 6: heat conducting block, 7: supporting foot, 701: shock absorbing pad, 702: electric telescopic rod, 703: limiting plate, 8: rotating frame, 801: sliding block, 8011: slide groove, 802: flexible rope, 803: rotating block, 804: sliding frame, 805: sliding rheostat, 9: rotating tube, 901: muffler, 902: first hydraulic telescopic rod, 903: second hydraulic telescopic rod, 904: second rack, 905: fourth gear, 906: first through hole, 907: second through hole. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0033] Existing diesel generators generate a lot of heat during operation, and heat dissipation holes need to be set on the diesel generators for cooling. This causes some noise to be directly discharged into the external environment through the heat dissipation holes. However, directly installing sound-absorbing cotton on the heat dissipation holes will cause the heat dissipation efficiency of the diesel generator to decrease. Therefore, existing diesel generators cannot maintain a dynamic balance between the degree of heat dissipation and the degree of noise reduction.

[0034] Example 1: An environmentally friendly low-noise diesel generator set, compared with Figure 1-Figure 5As shown, it includes a unit 1, which is equipped with a control panel. The unit 1 is provided with a generator electrically connected to the control panel. The generator of the unit 1 is equipped with two symmetrically distributed heat sinks 101. A symmetrically distributed fixed shell 102 is fixedly connected to the generator of the unit 1 near the symmetrically distributed heat sink 101. A cooling shell 103 connected to the fixed shell 102 is slidably connected. The cooling shell 103 is made of sound insulation material. The cooling shell 103 is used to cover adjacent heat sinks 101 and guide the hot air discharged from adjacent heat sinks 101 so that the hot air discharged from the heat sink 101 is discharged to the external environment through the adjacent cooling shell 103 and the adjacent fixed shell 102 in sequence. A cooling pipe connected to an external cold source is embedded in the cooling shell 103 for cooling the generator of the unit 1. A plurality of arc-shaped cooling holes 1031 are provided near the position of the cooling shell 103 near the generator of the unit 1. An electric control motor 104 electrically connected to the control panel is fixedly connected to the fixed shell 102. The housing 102 is provided with a gearbox 105, and the gearbox 105 is provided with two output gears. The output shaft of the electronically controlled motor 104 is fixedly connected to the input shaft of the adjacent gearbox 105. The fixed housing 102 is rotatably connected with a first gear 106 with a gear shaft, and the first gear 106 is meshed with the adjacent output gear on the adjacent gearbox 105. The gear shaft of the first gear 106 passes through the adjacent fixed housing 102 and is provided with a fan 107. Taking the cooling hole 1031 of the upper cooling housing 103 as an example, the airflow at the cooling hole 1031 of the upper cooling housing 103 located on the lower side is greatly affected by the fan 107, while the airflow at the upper cooling hole 1031 is less affected by the fan 107. The aperture of the arc-shaped cooling hole 1031 increases successively from away from the adjacent gearbox 105 to close to it, so as to keep the airflow at each cooling hole 1031 uniform, thereby preventing uneven heat distribution of the generator of the unit 1. The generator of the unit 1 is provided with a limit assembly 3 for adjusting the position of the centrally symmetrically distributed cooling housing 103.

[0035] Comparison Figure 1 , Figure 3 , Figure 4 and Figure 6-Figure 8As shown, the limiting assembly 3 includes a second gear 301 with a central symmetrical distribution, and the second gear 301 with a central symmetrical distribution is respectively rotatably connected to the adjacent fixed housing 102 through a gear shaft. The output gear on the left side of the gearbox 105 is an acceleration gear, and the output gear on the right side is a reduction gear, which is used to make the fan 107 rotate quickly while the second gear 301 rotates slowly. The gear shaft of the second gear 301 is splined with a rotating disk 302, and the rotating disk 302 is located on the outside of the adjacent fixed housing 102. The rotating disk 302 is rotatably connected with a plurality of circumferentially uniformly distributed limiting blocks 303, and an elastic member is fixedly connected between the limiting blocks 303 and the adjacent rotating disk 302, wherein the elastic member is an arc-shaped spring. The gear shaft of the second gear 301 is rotatably connected with a third gear 304, and the third gear 304 is provided with limiting portions 3041 that are circumferentially uniformly distributed and are squeezed and matched with adjacent circumferentially uniformly distributed limiting blocks 303, so as to Figure 7 Taking the rotation direction of the main view as a reference, when the rotating disk 302 drives the adjacent circumferentially uniformly distributed limit blocks 303 to rotate counterclockwise, the limit portion 3041 squeezes the adjacent limit block 303, compresses the elastic member of the limit block 303 and drives it to flip, and the limit block 303 cannot drive the adjacent third gear 304 to rotate. When the rotating disk 302 drives the adjacent circumferentially uniformly distributed limit blocks 303 to rotate clockwise, the limit block 303 drives the adjacent third gear 304 to rotate and reset through the adjacent limit portion 3041. The rotating disk 302 is fixedly connected with a circumferentially uniformly distributed sliding sleeve 305, and a thermistor 306 is arranged in the sliding sleeve 305. The expansion amount of the thermistor 306 is always linearly related to the resistance generated by the resistance bar 308 on the adjacent first rack 309. The gear shaft of the gear 301 is rotatably connected with a heat-conducting block 6 that penetrates the adjacent fixed shell 102 and fits with the generator of the unit 1. The gear shaft of the second gear 301, the rotating disk 302 and the sliding sleeve 305 are all made of heat-conducting materials, which are used to transfer the temperature of the generator of the unit 1 to the thermistor block 306. The telescopic end of the sliding sleeve 305 is fixedly connected with a flexible block 307 that is squeezed and matched with the adjacent limit block 303. The generator of the unit 1 is fixedly connected with resistance bars 308 that are symmetrically distributed up and down and are all made of elastic materials. The thickness of the resistance bar 308 gradually increases from the position close to the adjacent third gear 304 to the position away from the adjacent third gear 304. The fixed shell 102 is fixedly connected with a first rack 309 that is squeezed and matched with the adjacent resistance bar 308. The shape of the first rack 309 is arc-shaped. Figure 1The right view is the rotation reference. The resistance bar 308 is used to gradually increase the resistance of the adjacent first rack 309 when the first rack 309 rotates clockwise. The third gear 304 is meshed with the adjacent first rack 309. The cooling shell 103 is detachably and slidably connected with a cleaning plate 310 near the adjacent heat sink 101. The cleaning plate 310 is fitted with the adjacent heat sink 101 and is used to scrape off the smoke oil on the heat sink 101. When too much smoke oil accumulates near the axis of the cleaning plate 310, the operator pulls the cleaning plate 310 to the right and removes it. The cleaning plate 310 can be disassembled and cleaned and then installed again.

[0036] Comparison Figure 2 and Fig. 9 As shown, the lower side of the generator of unit 1 is fixedly connected with supporting feet 7 which are symmetrically distributed front and back, and the supporting feet 7 are installed with shock-absorbing pads 701, wherein the shock-absorbing pads 701 are bowl-shaped shock-absorbing pads, and the shock-absorbing pads 701 are fixedly connected to the unit 1, and the unit 1 is fixedly connected with an electrically controlled telescopic rod 702 located between the symmetrically distributed shock-absorbing pads 701, and the electrically controlled telescopic rod 702 is electrically connected to the control panel, and the telescopic end of the electrically controlled telescopic rod 702 is fixedly connected with a limiting plate 703 which is slidably connected to the unit 1, and the front and rear parts of the left side of the limiting plate 703 are both provided with guiding inclined surfaces, so that the left end of the limiting plate 703 can be inserted into the lower sides of the two supporting feet 7, and the supporting foot 7 cooperates with the limiting plate 703 to provide impact support for the supporting foot 7.

[0037] Before using the device, install the device at a location where power supply is required, and then control the telescopic end of the electric telescopic rod 702 to extend through the control panel. The telescopic end of the electric telescopic rod 702 drives the limit plate 703 to move to the right, so that the limit plate 703 loses contact with the two supporting feet 7.

[0038] When the operator needs to use the device to generate electricity, the operator continuously adds diesel to the generator of unit 1, and then starts the generator of unit 1. During the operation of the generator of unit 1 (the shock-absorbing pad 701 buffers the vibration generated during the operation of the generator of unit 1), the operator starts the two electronically controlled motors 104 through the control panel, and the output shafts of the two electronically controlled motors 104 respectively drive the input shafts of the adjacent gearboxes 105 to rotate, so that the two output gears of the gearbox 105 rotate synchronously. Taking the upper gearbox 105 as an example, the upper electronically controlled motor 104 drives the gear shaft of the adjacent first gear 106 to accelerate the rotation through the output gear on the left side of the adjacent gearbox 105, and the upper first gear 106 drives the adjacent The adjacent fan 107 rotates rapidly, and the fan 107 draws the airflow in the adjacent cooling shell 103 through the adjacent fixed shell 102. The hot air flow near the cooling hole 1031 is drawn into the adjacent cooling shell 103, so that the hot air flow generated by the operation of the unit 1 is drawn away through the plurality of cooling holes 1031. When the operator needs to increase the power of the generator of the unit 1, the operator increases the power of the generator of the unit 1 through the control panel and increases the speed of the output shafts of the two electronically controlled motors 104. When the power of the generator of the unit 1 is increased, the speed of the output shaft on the electronically controlled motor 104 is correspondingly accelerated, thereby improving the efficiency of the fan 107 in extracting the airflow, and synchronously adjusting the heat dissipation efficiency of the generator of the unit 1 according to the working efficiency of the generator.

[0039] During the synchronous rotation of the two output gears of the gearbox 105, the output gear on the right side of the gearbox 105 drives the adjacent second gear 301 to rotate counterclockwise (at this time, the second gear 301 rotates counterclockwise). Figure 1 The right view is taken as the rotation reference), the second gear 301 drives the adjacent rotating disk 302 to rotate through its gear shaft, and the rotating disk 302 drives the adjacent circumferentially uniformly distributed limit blocks 303 to rotate. During the rotation of the limit block 303, the limit block 303 continuously squeezes the adjacent limit portion 3041, and the limit block 303 is blocked by the adjacent limit portion 3041 and flipped over. The limit block 303 squeezes the adjacent flexible block 307, and the flexible block 307 is deformed and the elastic part of the limit block 303 contracts. At this time, the resistance of the resistance bar 308 to the adjacent first rack 309 is greater than the resistance of the limit portion 3041 to the adjacent limit block 303, and the third gear 304 cannot rotate temporarily.

[0040] When the power of the generator of unit 1 increases, the temperature of the generator of unit 1 will also increase synchronously. The temperature of the generator of unit 1 is successively transmitted to the adjacent sliding sleeves 305 uniformly distributed in the circumferential direction through the heat-conducting block 6, the gear shaft of the adjacent second gear 301 and the adjacent rotating disk 302, so that the adjacent thermistor block 306 in the sliding sleeve 305 expands due to the heat. The thermistor block 306 expands and squeezes the telescopic end of the adjacent sliding sleeve 305 to extend. The telescopic end of the sliding sleeve 305 drives the adjacent flexible block 307 to move, and the flexible block 307 squeezes the adjacent The limit block 303 flips over, and the elastic member of the limit block 303 stretches. At this time, the limit block 303 is blocked by the adjacent flexible block 307, so that the resistance of the limit portion 3041 to the adjacent limit block 303 increases. During the rotation process, the limit block 303 drives the adjacent third gear 304 to rotate through the adjacent limit portion 3041. The third gear 304 rotates and drives the adjacent first rack 309 to move. The first rack 309 moves along the adjacent resistance bar 308. During the movement of the first rack 309 along the adjacent resistance bar 308, The resistance of the first rack 309 will gradually increase, so that the rotation resistance of the third gear 304 will gradually increase, and the force required for the limit block 303 to drive the adjacent third gear 304 to rotate through the adjacent limit portion 3041 will also gradually increase. The extrusion force of the limit block 303 on the adjacent flexible block 307 will also increase, and the flexible block 307 will be further squeezed and deformed. When the resistance of the resistance bar 308 to the adjacent first rack 309 exceeds the resistance of the limit portion 3041 to the adjacent limit block 303 again, the first rack 309 will be Stop moving until the power of the generator of unit 1 increases and its temperature rises again. After the thermistor block 306 continues to expand, the limit block 303 is blocked by the adjacent flexible block 307. The resistance generated by the limit portion 3041 to the adjacent limit block 303 increases again. The limit block 303 will drive the adjacent third gear 304 to rotate through the adjacent limit portion 3041 again, so that the first rack 309 can continue to move. Repeat the above steps and adaptively adjust the movement of the first rack 309 according to the operating temperature of the generator of unit 1.

[0041] In the process of increasing the power of the generator of unit 1 and causing its temperature to increase synchronously, the noise generated by the operation of the generator of unit 1 will also increase, and the moving distance of the first rack 309 will gradually increase. The first rack 309 drives the adjacent fixed shell 102 to gradually move, gradually covering the adjacent heat sink 101, to prevent the noise generated when the power of the generator of unit 1 increases from increasing and being discharged through the heat sink 101, thereby causing noise in the external environment and affecting the hearing and attention of the operator. In the process of moving the fixed shell 102, the fixed shell 102 drives the adjacent cleaning plate 310 to move, and the cleaning plate 310 clears the oil smoke attached to the adjacent heat sink 101 to prevent the heat sink 101 from being blocked by the oil smoke, thereby affecting the heat dissipation efficiency of the heat sink 101.

[0042] When the operator needs to stop using the generator of unit 1, the operator turns off the generator of unit 1 through the control panel, and controls the output shaft of the electronically controlled motor 104 to reverse and reset through the control panel. The output shaft of the electronically controlled motor 104 drives the parts on it to reset, so that the output gear on the right side of the gearbox 105 drives the adjacent rotating disk 302 to rotate clockwise and reset through the gear shaft of the adjacent second gear 301, thereby driving the adjacent circumferentially uniformly distributed limit blocks 303 to rotate clockwise and reset, the limit blocks 303 drive the adjacent third gear 304 to rotate and reset through the adjacent limit parts 3041, and the third gear 304 drives the adjacent first rack 309 to move and reset, and then the operator The electric control motor 104 is turned off through the control panel, and the telescopic end of the electric control telescopic rod 702 is controlled to retract through the control panel. The telescopic end of the electric control telescopic rod 702 drives the limit plate 703 to move to the left, and the limit plate 703 moves to the lower side of the two supporting feet 7 to support the two supporting feet 7 to prevent the shock-absorbing pad 701 from being still affected by the gravity of the generator of the upper unit 1 after the unit 1 stops being used, resulting in material fatigue or even permanent plastic deformation of the shock-absorbing pad 701, thereby affecting the shock-absorbing effect of the shock-absorbing pad 701. Finally, the telescopic end of the electric control telescopic rod 702 is controlled to retract and reset through the control panel, and the device is cleaned and maintained for the next use.

[0043] During the operation of an existing diesel generator, if the diesel generator is running at low power, the noise of the diesel generator is relatively small. At this time, if the noise does not affect the external environment, there is no need to process the noise through a muffler. However, the existing muffler is connected to the exhaust system of the diesel generator. Even if the muffler is not needed, the smoke generated by the generator will enter the muffler, thereby increasing the risk of the muffler being blocked by the smoke.

[0044] Example 2: Based on Example 1, Figure 2 and Figure 10-12As shown, it also includes a rotating frame 8, which is fixed to the crankshaft of the generator of the unit 1, and is provided with a plurality of chute 8011 evenly distributed in the circumferential direction, in which a sliding block 801 is slidably connected, and a flexible rope 802 is fixed to the sliding block 801, and the flexible rope 802 evenly distributed in the circumferential direction is jointly fixed to a rotating block 803, and the rotating block 803 is rotatably connected to a sliding frame 804, and a sliding rheostat 805 electrically connected to the control panel is installed near the sliding frame 804 of the unit 1, and the sliding piece of the sliding rheostat 805 is fixed to the sliding frame 804, and when the sliding piece of the sliding rheostat 805 moves to the right, the sliding rheostat 805 moves to the right, and the sliding rheostat 805 moves to the right. 05 gradually decreases, thereby increasing the current of the electronically controlled motor 104, and then increasing the output shaft speed of the electronically controlled motor 104. Conversely, when the slider of the sliding rheostat 805 moves to the left, the resistance of the sliding rheostat 805 gradually increases, thereby reducing the current of the electronically controlled motor 104, and then slowing down the output shaft of the electronically controlled motor 104. The electronically controlled motor 104 is electrically connected to the sliding rheostat 805, and the upper part of the left side of the sliding rheostat 805 is electrically connected to the two electronically controlled motors 104 through two positive lines, and the lower part of the right side of the sliding rheostat 805 is electrically connected to the two electronically controlled motors 104 through two negative lines.

[0045] Comparison Figure 1 , Fig.10 , Fig.11 and Fig.13As shown, the generator of the unit 1 is provided with an exhaust duct, the unit 1 is rotatably connected with a rotating tube 9 which is communicated with the exhaust duct of its generator, the upper side of the rotating tube 9 is sealed and rotatably connected with a muffler 901 fixed to the unit 1, a first hydraulic telescopic rod 902 is fixedly connected to the position of the unit 1 near the sliding frame 804, the telescopic end of the first hydraulic telescopic rod 902 is fixedly connected to the sliding frame 804, a second hydraulic telescopic rod 903 is fixedly connected to the position of the unit 1 near the muffler 901, the second hydraulic telescopic rod 903 is communicated with the first hydraulic telescopic rod 902 through a conduit, the telescopic end of the second hydraulic telescopic rod 903 is fixedly connected to a second rack 904, the rotating tube 9 is fixedly connected with a fourth gear 905 meshing with the second rack 904, a first through hole 906 is provided in the rotating tube 9, and the muffler 901 is provided with a connecting pipe, and the connecting pipe is provided with a second through hole 907 which is communicated and matched with the first through hole 906 The interior of the muffler 901 is an existing structure, which will not be described here in detail, and only a brief description is given. There are three pipes on the left, middle and right and two sound-absorbing layers in the muffler 901. Sound enters from the middle connecting pipe, and is transmitted to the lower side of the muffler 901 through the pipe on the left, and then transmitted to the external environment through the pipe on the right. The sliding distance of the sliding rheostat 805 is the same as the extension amount of the telescopic end of the first hydraulic telescopic rod 902, and the volume in the fixed part of the first hydraulic telescopic rod 902 is the same as the volume in the fixed part of the second hydraulic telescopic rod 903. The telescopic length of the telescopic end of the second hydraulic telescopic rod 903 is equal to the arc length of the trajectory of the fourth gear 905 rotating 180°, which is used to make the communication area between the first through hole 906 and the second through hole 907 reach the maximum value when the sliding piece on the sliding rheostat 805 simultaneously controls the two electronically controlled motors 104 to reach the maximum output power.

[0046] In the initial state, when the generator of the unit 1 is not running, the first through hole 906 and the second through hole 907 are in a dislocated and blocked state.

[0047] When the operator needs to adjust the power of the generator of unit 1, the operator changes the amount of diesel injected into the generator, causing the crankshaft speed of the generator to change. Taking the increase in the power of the generator of unit 1 as an example, the crankshaft speed of the generator is accelerated, causing the speed of the rotating frame 8 to increase. The rotating frame 8 drives the circumferentially evenly distributed slide grooves 8011 thereon to rotate, and the circumferentially evenly distributed sliding blocks 801 are affected by the centrifugal force of the rotation of the rotating frame 8 to spread around. The sliding blocks 801 drive the adjacent flexible ropes 802 to move right, and the circumferentially evenly distributed sliding blocks 801 are driven by the adjacent flexible ropes 802 to move right. The flexible rope 802 of the cloth drives the rotating block 803 to move, the rotating block 803 drives the sliding frame 804 to move rightward, and the sliding frame 804 drives the sliding piece of the sliding rheostat 805 to move rightward, so that the resistance of the sliding rheostat 805 gradually decreases, thereby increasing the current of the electronically controlled motor 104, and the speed of the output shaft of the electronically controlled motor 104 increases, thereby realizing automatic adjustment of the speed of the output shaft of the electronically controlled motor 104, and then through the change of the speed of the output shaft of the electronically controlled motor 104 in the above embodiment, the speed of the fan 107 is automatically adjusted.

[0048] During the process of the sliding frame 804 moving to the right, the sliding frame 804 drives the telescopic end of the first hydraulic telescopic rod 902 to move to the right, the first hydraulic telescopic rod 902 injects hydraulic oil into the second hydraulic telescopic rod 903 through the conduit, and the telescopic end of the second hydraulic telescopic rod 903 drives the second rack 904 to move to the right, the second rack 904 drives the fourth gear 905 to rotate, the fourth gear 905 drives the rotating tube 9 to rotate, and the rotating tube 9 drives the first through hole 906 thereon to rotate, so that the first through hole 906 gradually aligns with the second through hole 907 on the muffler 901 connecting pipe, and the noise generated by the unit 1 is transmitted to the muffler 901 through the rotating tube 9, the first through hole 906 and the second through hole 907 in turn, so as to reduce the noise of the unit 1.

[0049] When the generator power of unit 1 is low, the noise generated by unit 1 is less. At this time, the first through hole 906 and the second through hole 907 are misaligned to prevent the flue gas from entering the muffler 901 when unit 1 is running at low power, thereby reducing the probability of the muffler 901 being blocked due to the accumulation of soot discharged from the engine of unit 1 (here, the accumulation of soot and the blockage of the muffler 901 means that the soot, diesel residue or other particles generated by incomplete combustion of the engine enter the muffler 901 with the exhaust gas, gradually accumulate and cause blockage).

[0050] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. An environmentally friendly low-noise diesel generator set, comprising a generator set (1), wherein the generator set (1) is provided with a generator, wherein the generator set (1) is provided with heat dissipation plates (101) distributed symmetrically in the center, wherein: The invention also comprises a centrally symmetrically distributed fixed housing (102), the centrally symmetrically distributed fixed housing (102) being fixedly connected to the generator of the unit (1) near the centrally symmetrically distributed heat sink (101), a cooling housing (103) being slidably connected in the fixed housing (102) and communicating therewith, the cooling housing (103) being made of a sound-insulating material, a side of the cooling housing (103) close to the generator of the unit (1) being provided with a plurality of groups of arc-shaped cooling holes (1031), an electronically controlled motor (104) being fixedly connected in the fixed housing (102), and a gearbox (101) being installed in the fixed housing (102). 05), the gearbox (105) is provided with two output gears, the output shaft of the electronically controlled motor (104) is fixedly connected to the input shaft of the adjacent gearbox (105), the fixed housing (102) is rotatably connected to a first gear (106) with a gear shaft, the first gear (106) is meshed with an adjacent output gear on the adjacent gearbox (105), the gear shaft of the first gear (106) passes through the adjacent fixed housing (102) and is equipped with a fan (107), and the generator of the unit (1) is provided with a limit assembly (3) for adjusting the position of the centrally symmetrically distributed cooling housing (103); The diameters of the arc-shaped cooling holes (1031) increase in sequence from being away from the adjacent gearbox (105) to being closer; The machine also comprises a rotating frame (8), the rotating frame (8) being fixedly connected to the crankshaft of the generator of the unit (1), the rotating frame (8) being provided with circumferentially evenly distributed sliding grooves (8011), a sliding block (801) being slidably connected in the sliding grooves (8011), a flexible rope (802) being fixedly connected to the sliding block (801), the flexible ropes (802) being evenly distributed in the circumferential direction being jointly fixedly connected to a rotating block (803), the rotating block (803) being rotatably connected to a sliding frame (804), a sliding rheostat (805) being installed at a position of the unit (1) close to the sliding frame (804), a sliding plate of the sliding rheostat (805) being fixedly connected to the sliding frame (804), and the electric control motor (104) being electrically connected to the sliding rheostat (805); The generator of the unit (1) is provided with an exhaust duct, the unit (1) is rotatably connected to a rotating tube (9) which is in communication with the exhaust duct of the generator, the upper side of the rotating tube (9) is sealed and rotatably connected to a muffler (901) fixedly connected to the unit (1), a first hydraulic telescopic rod (902) is fixedly connected to a position of the unit (1) close to the sliding frame (804), the telescopic end of the first hydraulic telescopic rod (902) is fixedly connected to the sliding frame (804), and a second hydraulic telescopic rod (902) is fixedly connected to a position of the unit (1) close to the muffler (901). A telescopic rod (903), the second hydraulic telescopic rod (903) is connected to the first hydraulic telescopic rod (902) through a conduit, the telescopic end of the second hydraulic telescopic rod (903) is fixedly connected to a second rack (904), the rotating tube (9) is fixedly connected to a fourth gear (905) meshing with the second rack (904), a first through hole (906) is provided in the rotating tube (9), and the muffler (901) is provided with a connecting pipe, and the connecting pipe is provided with a second through hole (907) connected and matched with the first through hole (906).

2. The environmentally friendly and low-noise diesel generator set according to claim 1 is characterized by: The limiting assembly (3) comprises a second gear (301) which is centrally symmetrically distributed. The second gears (301) which are centrally symmetrically distributed are respectively rotatably connected to the adjacent fixed housing (102) via gear shafts. The gear shaft of the second gear (301) is spline-connected to a rotating disk (302). The rotating disk (302) is located outside the adjacent fixed housing (102). The rotating disk (302) is rotatably connected to a limiting block (303) which is uniformly distributed in the circumferential direction. An elastic member is fixedly connected between the limiting block (303) and the adjacent rotating disk (302). The gear shaft of the second gear (301) is rotatably connected to a third gear (304). The third gear (304) is provided with limiting portions (304) which are uniformly distributed in the circumferential direction and are pressed and matched with the adjacent limiting blocks (303) which are uniformly distributed in the circumferential direction. 3041), the rotating disk (302) is fixedly connected with a sliding sleeve (305) uniformly distributed in the circumferential direction, a thermal block (306) is arranged in the sliding sleeve (305), the telescopic end of the sliding sleeve (305) is fixedly connected with a flexible block (307) which is squeezed and matched with the adjacent limit block (303), the generator of the unit (1) is fixedly connected with resistance bars (308) which are symmetrically distributed and made of elastic material, the fixed shell (102) is fixedly connected with a first rack (309) which is squeezed and matched with the adjacent resistance bar (308), the third gear (304) is meshed with the adjacent first rack (309), and a cleaning plate (310) is detachably connected to a side of the cooling shell (103) close to the adjacent heat sink (101), and the cleaning plate (310) is fitted with the adjacent heat sink (101).

3. The environmentally friendly and low-noise diesel generator set according to claim 2 is characterized by: The thickness of the resistance bar (308) gradually increases from a side close to the third gear (304) to a side away from the third gear (304).

4. The environmentally friendly and low-noise diesel generator set according to claim 3 is characterized by: The expansion amount of the thermal block (306) is always linearly related to the resistance generated by the resistance bar (308) on the adjacent first rack (309).

5. The environmentally friendly and low-noise diesel generator set according to claim 2 is characterized by: A heat conducting block (6) is rotatably connected to the gear shaft of the second gear (301), which passes through the adjacent fixed housing (102) and is fitted to the generator of the unit (1); the gear shaft of the second gear (301), the rotating disk (302) and the sliding sleeve (305) are all made of heat conducting materials.

6. The environmentally friendly and low-noise diesel generator set according to claim 5 is characterized by: The lower side of the generator of the unit (1) is fixedly connected with symmetrically distributed support feet (7), the support feet (7) are equipped with shock-absorbing pads (701), the shock-absorbing pads (701) are fixedly connected to the unit (1), the unit (1) is fixedly connected with an electrically controlled telescopic rod (702) located between the symmetrically distributed shock-absorbing pads (701), the telescopic end of the electrically controlled telescopic rod (702) is fixedly connected with a limit plate (703) slidably connected to the unit (1), and the support feet (7) and the limit plate (703) are limitedly matched.

7. The environmentally friendly and low-noise diesel generator set according to claim 1 is characterized by: The sliding distance of the sliding plate on the sliding rheostat (805) is the same as the telescopic amount of the telescopic end of the first hydraulic telescopic rod (902), and the volume inside the fixed part of the first hydraulic telescopic rod (902) is the same as the volume inside the fixed part of the second hydraulic telescopic rod (903), and the telescopic length of the telescopic end of the second hydraulic telescopic rod (903) is equal to the arc length of the trajectory of the fourth gear (905) rotating 180 degrees.

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