Combined forge piece gear structure of wind generating set and manufacturing method

Abstract

The invention relates to the field of wind generating set gear structures, in particular to a combined forged piece gear structure of a wind generating set, which comprises an input shaft, a rotating speed sensor is embedded in the outer wall of the input shaft, the right end of the input shaft is fixedly connected with a turntable, and the right end of the turntable is rotatably connected with three planet gears. A gear ring is jointly connected outside the three planet wheels in a meshed mode, a middle wheel is jointly connected among the three planet wheels in a meshed mode, a transmission shaft is coaxially and fixedly connected to the middle wheel, a first gear is coaxially and fixedly connected to the right end of the transmission shaft, and a second gear is connected outside the first gear in a meshed mode. The second gear is coaxially and fixedly connected with a rotating shaft, and the right end of the rotating shaft is coaxially and fixedly connected with a third gear. Compared with the prior art, energy can be temporarily stored, the load of the gear is reduced, and the service life of the gear is prolonged.

Description

Technical Field

[0001] The present invention relates to the field of gear structures of wind turbines, and particularly to a combined forging gear structure and manufacturing method for wind turbines. Background Art

[0002] A wind turbine is a power device that converts wind energy into mechanical work. The mechanical work drives the rotor to rotate, and finally outputs alternating current. A wind turbine generally consists of components such as a wind wheel, a generator (including devices), a yaw regulator (tail fin), a tower, a speed limit safety mechanism, and an energy storage device. The working principle of a wind turbine is relatively simple. The wind wheel rotates under the action of wind, converting the kinetic energy of the wind into the mechanical energy of the wind wheel shaft. The generator rotates to generate electricity driven by the wind wheel shaft. Broadly speaking, wind energy is also solar energy. Therefore, it can also be said that a wind turbine is a thermal energy utilization generator with the sun as the heat source and the atmosphere as the working medium.

[0003] During the operation of a wind power gearbox, due to the continuous change of wind speed and the uncertainty of wind direction, a large rotational force will be input to the input shaft of the wind power gearbox, and the gears inside it may bear loads exceeding their design limits. Such overload stress may cause plastic deformation or microcracks in the gears, forming white edge cracks, and shortening the service life of the gears in the gearbox.

[0004] Therefore, based on the above problems, we have invented a combined forging gear structure and manufacturing method for wind turbines. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a combined forging gear structure and manufacturing method for wind turbines to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A combined forging gear structure for a wind turbine, including,

[0007] An input shaft, on the outer wall of which a rotational speed sensor is embedded. The right end of the input shaft is fixedly connected to a turntable. The right end of the turntable is rotatably connected to three planet gears. A ring gear is commonly meshed with the three planet gears. An intermediate gear is commonly meshed between the three planet gears. The intermediate gear is coaxially fixedly connected to a transmission shaft. The right end of the transmission shaft is coaxially fixedly connected to a first gear. The first gear is externally meshed with a second gear. The second gear is coaxially fixedly connected to a rotating shaft. The right end of the rotating shaft is coaxially fixedly connected to a third gear. The third gear is externally meshed with a fourth gear. The right end of the fourth gear is coaxially fixedly connected to an output shaft;

[0008] An energy storage mechanism is used for temporarily storing excess energy transmitted from an input shaft, the energy storage mechanism comprising a fixed disk coaxially fixedly connected to the transmission shaft, the fixed disk fixedly connected to the first gear, an energy storage shaft is provided on the right side of the fixed disk, a rotating ring and a connecting disk are provided on the outer sleeve of the energy storage shaft, the connecting disk is rotatably connected to the rotating ring, an energy storage coil spring is fixedly installed outside the energy storage shaft, the outer side of the energy storage coil spring is fixedly connected to the rotating ring, a driving mechanism for driving the rotating ring is provided on the fixed disk, a first limiting mechanism is provided outside the rotating ring, a moving gear is provided on the sliding sleeve outside the energy storage shaft, the moving gear matches the third gear, a moving mechanism for moving the moving gear is provided on the energy storage shaft, and a second limiting mechanism is provided outside the energy storage shaft.

[0009] Furthermore, the outer diameters of the first gear and the third gear are much larger than the outer diameters of the second gear and the fourth gear.

[0010] Furthermore, the driving mechanism includes a groove arranged on a fixed plate, a slide plate is slidably connected in the groove, the lower end of the slide plate is fixedly connected to the bottom of the groove by a spring, the side wall of the slide plate is provided with a slide groove, a connecting shaft is actively connected in the slide groove, a driving gear is coaxially fixed outside the connecting shaft, a tooth groove meshing with the driving gear is provided on the inner side wall of the groove, a gear box is fixedly connected to the outside of the slide plate, one end of the connecting shaft rotates through the slide plate and the gear box and is coaxially fixedly connected with a transmission gear, a rack is slidably connected in the gear box, one end of the rack slides out of the gear box, and an annular tooth groove matching the rack is provided on the inner side wall of the swivel.

[0011] Furthermore, the first limiting mechanism includes a plurality of first teeth fixedly connected to the outside of the rotating ring, and the plurality of first teeth are distributed in a ring array on the rotating ring. A first telescopic rod is provided outside the rotating ring, and one end of the first telescopic rod is fixedly connected to a first limiting plate, and the first limiting plate matches the plurality of first teeth. The first telescopic rod is electrically connected to a speed sensor.

[0012] Furthermore, the moving mechanism includes a moving disk fixedly sleeved outside the energy storage shaft, and two transmission shafts are rotatably connected outside the moving disk. The two transmission shafts are connected through a transmission mechanism, and the ends of the two transmission shafts away from the moving disk are threaded with sleeves, and the ends of the sleeves away from the transmission shafts are fixedly connected to the same fixing ring, and the fixing ring is fixedly connected to the moving gear, and the side wall of the moving disk is fixedly connected to a motor, and the driving shaft of the motor rotates through the moving disk and is coaxially fixedly connected to the transmission shaft.

[0013] Further, the transmission mechanism includes two connecting gears, the two connecting gears are respectively fixedly connected to two transmission shafts coaxially, a transmission ring is rotatably connected to the outside of the moving disk, and an annular tooth groove meshing with both connecting gears is arranged inside the transmission ring.

[0014] Further, the second limiting mechanism includes a plurality of second teeth fixedly connected to the outside of the energy storage shaft, the plurality of second teeth are arranged in an annular array on the energy storage shaft, a second telescopic rod is arranged outside the energy storage shaft, one end of the second telescopic rod is fixedly connected to a second limiting plate, the second limiting plate matches the plurality of second teeth, and the second telescopic rod is electrically connected to a rotational speed sensor.

[0015] Further, the thickness of the third gear is greater than the sum of the widths of the fourth gear and the moving gear.

[0016] A manufacturing method of a combined forging gear structure of a wind power generation unit is as follows:

[0017] S1: Inject mold the gears of various sizes through a gear mold.

[0018] S2: Select each component.

[0019] S3: Form a planetary gear by combining a planetary gear, an intermediate gear and a ring gear, install the turntable with three planetary gears, install the transmission shaft with the intermediate gear and the first gear, install the rotating shaft with the second gear and the third gear, install the output shaft with the fourth gear, and then install the above-installed components into the gearbox.

[0020] S4: Install the fixed disk on the transmission shaft, install all the components on the energy storage shaft, and then install the above-installed components into the gearbox described in S3.

[0021] Compared with the prior art, the present invention provides a combined forging gear structure and a manufacturing method of a wind power generation unit, having the following beneficial effects:

[0022] The combined forging gear structure and manufacturing method of a wind turbine are provided with an energy storage mechanism. When the energy input by the input shaft is large, the rotational speed of the input shaft is fast at this time. The rotational speed sensor monitors its rotational speed and conducts an electrical signal to the first telescopic rod. At this time, the first telescopic rod retracts and drives the first limiting plate to move, so that the first limiting plate does not limit the rotating ring. At the same time, the input shaft drives the transmission shaft to rotate under the action of the planet gear and the intermediate gear. The transmission shaft drives the first gear to rotate, and the first gear drives the fixed disk to rotate. When the fixed disk rotates, the sliding plate will move under the action of centrifugal force. At this time, the driving gear rotates under the action of the tooth groove. The driving gear drives the transmission gear to rotate through the connecting shaft, and the transmission gear drives the rack to move up and down until the rack is inserted into the internal annular tooth groove. At this time, under the action of the rack, the fixed disk drives the rotating ring to rotate, and the rotating ring drives the energy storage spring to wind and store energy, so as to disperse and store the energy input by the input shaft, reduce the acting force of the input shaft on each gear inside the gearbox, avoid excessive loads on each gear, reduce the probability of white edge cracks generated by the gear due to overload stress, increase the service life of the gears in the gearbox. When the energy input by the input shaft is small, the rotational speed of the input shaft is slow at this time. The rotational speed sensor monitors its rotational speed and conducts an electrical signal to the motor and the second telescopic rod. The motor drives two transmission shafts to rotate, and the two transmission shafts drive two sleeves to move. The two sleeves drive the moving gear to move through the fixed ring, so that the moving gear meshes with the third gear. At the same time, the second telescopic rod retracts and drives the second limiting plate to move, so that the second limiting plate does not limit the energy storage shaft. At this time, the energy stored in the energy storage spring is released, the energy storage spring relaxes, the energy storage spring drives the energy storage shaft to rotate, and the energy storage shaft drives the third gear to rotate, so as to release the stored energy. On the one hand, it temporarily stores the energy, and on the other hand, it prolongs the service life of the gears.

[0023] In the present invention, the energy can be temporarily stored, the load on the gears is reduced, and the service life of the gears is prolonged. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 is a front structural explosion diagram of the energy storage mechanism in the feeding component of the present invention;

[0026] Figure 3 is a structural perspective view of the energy storage mechanism in the feeding component of the present invention;

[0027] Figure 4 is Figure 3 an enlarged view of part A in

[0028] Figure 5 is a back structural explosion diagram of the energy storage mechanism in the feeding component of the present invention;

[0029] Figure 6 is Figure 5 an enlarged view of part B in

[0030] Figure 7 a structural perspective view of the moving mechanism in the present invention.

[0031] In the figure: 1, input shaft; 2, turntable; 3, planetary gear; 4, toothed ring; 5, intermediate gear; 6, transmission shaft; 7, first gear; 8, second gear; 9, rotating shaft; 10, third gear; 11, fourth gear; 12, output shaft; 13, energy storage mechanism; 14, fixed disk; 15, energy storage shaft; 16, rotating ring; 17, connecting disk; 18, energy storage coil spring; 19, driving mechanism; 20, first limiting mechanism; 21, moving gear; 22, moving mechanism; 23, second limiting mechanism; 24, groove; 25, sliding plate; 26, spring; 27, sliding groove; 28, connecting shaft; 29, driving gear; 30, gear box; 31, transmission gear; 32, rack; 33, annular tooth groove; 34, first tooth; 35, first telescopic rod; 36, first limiting plate; 37, moving disk; 38, transmission shaft; 39, transmission mechanism; 40, sleeve; 41, fixed ring; 42, second tooth; 43, second telescopic rod; 44, second limiting plate; 45, connecting gear; 46, transmission ring; 47, motor. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a combined forging gear structure and manufacturing method for a wind turbine generator set.

[0034] As Figure 1-7 shown, a combined forging gear structure and manufacturing method for a wind turbine generator set includes

[0035] Input shaft 1 has a rotational speed sensor embedded in its outer wall. The right end of input shaft 1 is fixedly connected to a turntable 2. The right end of turntable 2 is rotatably connected to three planet gears 3. A toothed ring 4 is commonly meshed and connected outside the three planet gears 3. An idler gear 5 is commonly meshed and connected between the three planet gears 3. The idler gear 5 is coaxially and fixedly connected to a transmission shaft 6. The right end of transmission shaft 6 is coaxially and fixedly connected to a first gear 7. A second gear 8 is meshed outside the first gear 7. The second gear 8 is coaxially and fixedly connected to a rotating shaft 9. The right end of rotating shaft 9 is coaxially and fixedly connected to a third gear 10. A fourth gear 11 is meshed outside the third gear 10. The right end of the fourth gear 11 is coaxially and fixedly connected to an output shaft 12. It should be noted that the outer diameters of the first gear 7 and the third gear 10 are much larger than the outer diameters of the second gear 8 and the fourth gear 11;

[0036] Through the above technical features, the wind turbine blade rotates under the action of wind force, and then drives the input shaft 1 to rotate. The input shaft 1 inputs energy to drive the turntable 2 to rotate. The turntable 2 drives the three planet gears 3 to revolve. The planet gears 3 rotate on their own under the meshing action of the toothed ring 4 and the idler gear 5 and drive the idler gear 5 to rotate. The idler gear 5 drives the transmission shaft 6 to rotate. The transmission shaft 6 drives the rotating shaft 9 to rotate through the first gear 7 and the second gear 8. The rotating shaft 9 drives the output shaft 12 to rotate through the third gear 10 and the fourth gear 11. The output shaft 12 is connected to an external generator, and the wind energy can be converted into electric energy.

[0037] In order to prevent excessive energy input from the input shaft 1 from causing white edge cracks in each gear inside the gearbox, an energy storage mechanism 13 is provided to temporarily store the excess energy transmitted from the input shaft 1. The energy storage mechanism 13 includes a fixed disk 14 coaxially and fixedly connected to the transmission shaft 6. The fixed disk 14 is fixedly connected to the first gear 7. A storage shaft 15 is provided on the right side of the fixed disk 14. A rotating ring 16 and a connecting disk 17 are sleeved outside the storage shaft 15. The connecting disk 17 is rotatably connected to the rotating ring 16. A storage coil spring 18 is fixedly installed outside the storage shaft 15. The outer side of the storage coil spring 18 is fixedly connected to the rotating ring 16. A driving mechanism 19 for driving the rotating ring 16 is provided on the fixed disk 14. It should be noted that the driving mechanism 19 includes a groove 24 provided on the fixed disk 14. A sliding plate 25 is slidably connected in the groove 24. The lower end of the sliding plate 25 is fixedly connected to the inner bottom of the groove 24 through a spring 26. A sliding groove 27 is provided on the side wall of the sliding plate 25.

[0038] In the present invention, a connecting shaft 28 is actively connected in the slide groove 27, a driving gear 29 is coaxially fixed outside the connecting shaft 28, a tooth groove meshing with the driving gear 29 is provided on the inner side wall of the groove 24, a gear box 30 is fixedly connected outside the slide plate 25, one end of the connecting shaft 28 rotates through the slide plate 25 and the gear box 30 and is coaxially fixedly connected with a transmission gear 31, a rack 32 is slidably connected inside the gear box 30, one end of the rack 32 slides out of the gear box 30, an annular tooth groove 33 matching the rack 32 is provided on the inner side wall of the rotating ring 16, and a first limiting mechanism is provided outside the rotating ring 16 20. Further, the first limiting mechanism 20 includes a plurality of first teeth 34 fixedly connected to the outside of the rotating ring 16, and the plurality of first teeth 34 are distributed in a ring array on the rotating ring 16. A first telescopic rod 35 is provided outside the rotating ring 16, and a first limiting plate 36 is fixedly connected to one end of the first telescopic rod 35. The first limiting plate 36 matches the plurality of first teeth 34. The first telescopic rod 35 is electrically connected to the speed sensor. A moving gear 21 is provided on the outer sliding sleeve of the energy storage shaft 15. It should be noted that the thickness of the third gear 10 is greater than the sum of the widths of the fourth gear 11 and the moving gear 21.

[0039] In the present invention, the moving gear 21 matches the third gear 10, and the energy storage shaft 15 is provided with a moving mechanism 22 for moving the moving gear 21. It should be noted that the moving mechanism 22 includes a moving disk 37 fixedly sleeved on the outside of the energy storage shaft 15, and the moving disk 37 is rotatably connected to two transmission shafts 38, and the two transmission shafts 38 are connected through a transmission mechanism 39. It should be noted that the transmission mechanism 39 includes two connecting gears 45, and the two connecting gears 45 are coaxially fixedly connected to the two transmission shafts 38, respectively. The moving disk 37 is rotatably connected to a transmission ring 46, and the transmission ring 46 is provided with an annular tooth groove that meshes with the two connecting gears 45. The ends of the two transmission shafts 38 away from the moving disk 37 are threadedly sleeved with sleeves 40, and the sleeves One end of the cylinder 40 away from the transmission shaft 38 is fixedly connected to the same fixing ring 41, the fixing ring 41 is fixedly connected to the moving gear 21, the side wall of the moving disk 37 is fixedly connected to the motor 47, the driving shaft of the motor 47 rotates through the moving disk 37 and is coaxially fixedly connected to the transmission shaft 38, and a second limiting mechanism 23 is provided outside the energy storage shaft 15. Furthermore, the second limiting mechanism 23 includes a plurality of second teeth 42 fixedly connected to the outside of the energy storage shaft 15, and the plurality of second teeth 42 are distributed in a ring array on the energy storage shaft 15. A second telescopic rod 43 is provided outside the energy storage shaft 15, and one end of the second telescopic rod 43 is fixedly connected to a second limiting plate 44, the second limiting plate 44 matches the plurality of second teeth 42, and the second telescopic rod 43 is electrically connected to the speed sensor.

[0040] Through the above technical features,

[0041] 1) When the energy input by the input shaft 1 is large, the rotational speed of the input shaft 1 is relatively fast at this time. The rotational speed sensor monitors its rotational speed and conducts an electrical signal to the first telescopic rod 35. At this time, the first telescopic rod 35 retracts and drives the first limit plate 36 to move, so that the first limit plate 36 does not limit the rotating ring 16. At the same time, under the action of the planetary gear 3 and the intermediate gear 5, the input shaft 1 drives the transmission shaft 6 to rotate. The transmission shaft 6 drives the first gear 7 to rotate, and the first gear 7 drives the fixed disk 14 to rotate. When the fixed disk 14 rotates, the sliding plate 25 will move under the action of centrifugal force. At this time, the driving gear 29 rotates under the action of the tooth groove. The driving gear 29 drives the transmission gear 31 to rotate through the connecting shaft 28, and the transmission gear 31 drives the rack 32 to move up and down until the rack 32 is inserted into the internal annular tooth groove 33. At this time, under the action of the rack 32, the fixed disk 14 drives the rotating ring 16 to rotate, and the rotating ring 16 drives the energy storage coil spring 18 to wind and store energy, so as to disperse and store the energy input by the input shaft 1, and reduce the acting force of the input shaft 1 on each gear inside the gearbox;

[0042] 2) When the energy input by the input shaft 1 is small, the rotational speed of the input shaft 1 is relatively slow at this time. The rotational speed sensor monitors its rotational speed and conducts an electrical signal to the motor 47 and the second telescopic rod 43. The motor 47 drives the two transmission shafts 38 to rotate, and the two transmission shafts 38 drive the two sleeves 40 to move. The two sleeves 40 drive the moving gear 21 to move through the fixed ring 41, so that the moving gear 21 meshes with the third gear 10. At the same time, the second telescopic rod 43 retracts and drives the second limit plate 44 to move, so that the second limit plate 44 does not limit the energy storage shaft 15. At this time, the energy stored in the energy storage coil spring 18 is released, the energy storage coil spring 18 relaxes, the energy storage coil spring 18 drives the energy storage shaft 15 to rotate, and the energy storage shaft 15 drives the third gear 10 to rotate, so as to release the stored energy.

[0043] A manufacturing method of a combined forging gear structure of a wind turbine generator, the specific steps are as follows:

[0044] S1: Injection mold the gears of each size through a gear mold;

[0045] S2: Select each component;

[0046] S3: Combine the planetary gear 3, the intermediate gear 5 and the gear ring 4 to form a planetary gear. Install the turntable 2 and the three planetary gears 3, install the transmission shaft 6 and the intermediate gear 5 and the first gear 7, install the rotating shaft 9 and the second gear 8 and the third gear 10, install the output shaft 12 and the fourth gear 11, and then install the above-installed components in the gearbox;

[0047] S4: Install the fixed disk 14 on the transmission shaft 6, install all the components on the energy storage shaft 15, and then install the above-installed components in the gearbox of S3.

[0048] Working principle:

[0049] 1) Wind energy is converted into electrical energy: The wind turbine blade rotates under the action of wind force, and then drives the input shaft 1 to rotate. The input shaft 1 inputs energy to drive the turntable 2 to rotate. The turntable 2 drives the three planet gears 3 to revolve. The planet gears 3 rotate around their own axes under the meshing action of the ring gear 4 and the intermediate gear 5 and drive the intermediate gear 5 to rotate. The intermediate gear 5 drives the transmission shaft 6 to rotate. The transmission shaft 6 drives the rotating shaft 9 to rotate through the first gear 7 and the second gear 8. The rotating shaft 9 drives the output shaft 12 to rotate through the third gear 10 and the fourth gear 11. The output shaft 12 is connected to an external generator, and thus the wind energy can be converted into electrical energy;

[0050] 2) Temporarily store the excessive energy input to the input shaft 1: When the energy input to the input shaft 1 is large, at this time the rotation speed of the input shaft 1 is fast. The rotation speed sensor monitors its rotation speed and transmits an electrical signal to the first telescopic rod 35. At this time, the first telescopic rod 35 retracts to drive the first limiting plate 36 to move, so that the first limiting plate 36 does not limit the rotating ring 16. At the same time, the input shaft 1 drives the transmission shaft 6 to rotate under the action of the planet gear 3 and the intermediate gear 5. The transmission shaft 6 drives the first gear 7 to rotate. The first gear 7 drives the fixed disk 14 to rotate. When the fixed disk 14 rotates, the sliding plate 25 will move under the action of centrifugal force. At this time, the driving gear 29 rotates under the action of the tooth groove. The driving gear 29 drives the transmission gear 31 to rotate through the connecting shaft 28. The transmission gear 31 drives the rack 32 to move up and down until the rack 32 is inserted into the internal annular tooth groove 33. At this time, under the action of the rack 32, the fixed disk 14 drives the rotating ring 16 to rotate, and the rotating ring 16 drives the energy storage coil spring 18 to wind and store energy, so as to disperse and temporarily store the energy input to the input shaft 1;

[0051] 3) Release of stored energy: When the energy input by the input shaft 1 is small, the rotation speed of the input shaft 1 is slow at this time. The rotation speed sensor monitors its rotation speed and conducts the electrical signal to the motor 47 and the second telescopic rod 43. The motor 47 drives the two transmission shafts 38 to rotate. The two transmission shafts 38 drive the two sleeves 40 to move. The two sleeves 40 drive the moving gear 21 to move through the fixing ring 41, so that the moving gear 21 meshes with the third gear 10. At the same time, the second telescopic rod 43 retracts to drive the second limiting plate 44 to move, so that the second limiting plate 44 does not limit the energy storage shaft 15. At this time, the energy stored in the energy storage spring 18 is released, the energy storage spring 18 relaxes, the energy storage spring 18 drives the energy storage shaft 15 to rotate, and the energy storage shaft 15 drives the third gear 10 to rotate, so that the stored energy can be released. Since the outer diameters of the first gear 7 and the third gear 10 are much larger than those of the second gear 8 and the fourth gear 11, a speed reduction transmission chain is formed. When the energy storage is released, the high rotation speed of the third gear 10 is converted into a low rotation speed and large torque output through the fourth gear 11. When transmitting in the reverse direction, it is necessary to overcome the torque amplification effect brought by the multi-stage speed reduction ratio, and the actual energy return can be ignored. Moreover, the internal resistance of the generator connected to the output shaft 12 is much larger than the frictional resistance of the gear system. When the energy storage is released, the driving torque of the third gear 10 is mainly used to drive the generator to generate electricity. Therefore, the system energy will preferentially flow to the high-energy-consuming load (generator). At the same time, the rotation speed sensor continuously monitors the rotation speed of the input shaft 1. When it detects that the rotation speed of the input shaft 1 increases (such as when the wind speed recovers), it immediately triggers the second telescopic rod 43 to reset, locks the energy storage shaft 15 through the second limiting plate 44, and forcibly terminates the energy release, avoiding reverse drive.

[0052] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined forging gear structure for a wind turbine generator set, characterized in that: include, An input shaft, a speed sensor is embedded in the outer wall of the input shaft, the right end of the input shaft is fixedly connected to a rotating disk, the right end of the rotating disk is rotatably connected to three planetary gears, the three planetary gears are commonly meshed with a gear ring, the three planetary gears are commonly meshed with an intermediate gear, the intermediate gear is coaxially fixedly connected to a transmission shaft, the right end of the transmission shaft is coaxially fixedly connected to a first gear, the first gear is externally meshed with a second gear, the second gear is coaxially fixedly connected to a rotating shaft, the right end of the rotating shaft is coaxially fixedly connected to a third gear, the third gear is externally meshed with a fourth gear, and the right end of the fourth gear is coaxially fixedly connected to an output shaft; An energy storage mechanism is used for temporarily storing excess energy transmitted from an input shaft, the energy storage mechanism comprising a fixed disk coaxially fixedly connected to the transmission shaft, the fixed disk fixedly connected to the first gear, an energy storage shaft is provided on the right side of the fixed disk, a rotating ring and a connecting disk are provided on the outer sleeve of the energy storage shaft, the connecting disk is rotatably connected to the rotating ring, an energy storage coil spring is fixedly installed outside the energy storage shaft, the outer side of the energy storage coil spring is fixedly connected to the rotating ring, a driving mechanism for driving the rotating ring is provided on the fixed disk, a first limiting mechanism is provided outside the rotating ring, a moving gear is provided on the sliding sleeve outside the energy storage shaft, the moving gear matches the third gear, a moving mechanism for moving the moving gear is provided on the energy storage shaft, and a second limiting mechanism is provided outside the energy storage shaft.

2. The combined forging gear structure of a wind turbine generator set according to claim 1, characterized in that: The outer diameters of the first gear and the third gear are much larger than the outer diameters of the second gear and the fourth gear.

3. The combined forging gear structure of a wind turbine generator set according to claim 1, characterized in that: The driving mechanism includes a groove arranged in a fixed disk, a slide plate is slidably connected in the groove, the lower end of the slide plate is fixedly connected to the bottom of the groove by a spring, the side wall of the slide plate is provided with a slide groove, a connecting shaft is actively connected in the slide groove, a driving gear is coaxially fixed outside the connecting shaft, a tooth groove meshing with the driving gear is provided on the inner side wall of the groove, a gear box is fixedly connected to the outside of the slide plate, one end of the connecting shaft rotates through the slide plate and the gear box and is coaxially fixedly connected with a transmission gear, a rack is slidably connected in the gear box, one end of the rack slides out of the gear box, and an annular tooth groove matching the rack is provided on the inner side wall of the rotating ring.

4. The combined forging gear structure of a wind turbine generator set according to claim 1, characterized in that: The first limiting mechanism includes a plurality of first teeth fixedly connected to the outside of the rotating ring, and the plurality of first teeth are distributed in a ring array on the rotating ring. A first telescopic rod is provided outside the rotating ring, and a first limiting plate is fixedly connected to one end of the first telescopic rod. The first limiting plate matches the plurality of first teeth, and the first telescopic rod is electrically connected to a rotation speed sensor.

5. The combined forging gear structure of a wind turbine generator set according to claim 1, characterized in that: The moving mechanism includes a moving disk fixedly sleeved outside the energy storage shaft, two transmission shafts are rotatably connected outside the moving disk, the two transmission shafts are transmission-connected through a transmission mechanism, and sleeves are threadedly sleeved on the ends of the two transmission shafts away from the moving disk, and the same fixing ring is fixedly connected to the moving gear, and a motor is fixedly connected to the side wall of the moving disk, and the driving shaft of the motor rotates through the moving disk and is coaxially fixedly connected to the transmission shaft.

6. The combined forging gear structure of a wind turbine generator set according to claim 5, characterized in that: The transmission mechanism comprises two connecting gears, which are respectively coaxially fixedly connected to two transmission shafts. The movable plate is externally rotatably connected to a transmission ring, and the transmission ring is provided with an annular tooth groove meshing with the two connecting gears.

7. The combined forging gear structure of a wind turbine generator set according to claim 1, characterized in that: The second limiting mechanism includes a plurality of second teeth fixedly connected to the outside of the energy storage shaft, and the plurality of second teeth are distributed in a ring array on the energy storage shaft. A second telescopic rod is provided outside the energy storage shaft, and a second limiting plate is fixedly connected to one end of the second telescopic rod. The second limiting plate matches the plurality of second teeth, and the second telescopic rod is electrically connected to the speed sensor.

8. The combined forging gear structure of a wind turbine generator set according to claim 1, characterized in that: The thickness of the third gear is greater than the sum of the widths of the fourth gear and the moving gear.

9. A method for manufacturing a combined forged gear structure of a wind turbine generator set, used for a combined forged gear structure of a wind turbine generator set according to any one of claims 1 to 8, characterized in that: The specific steps are as follows: S1: Injection molding of gears of various sizes through gear molds; S2: Select each component; S3: The planetary gears are assembled from the planetary gears, the intermediate gears and the gear ring, the rotating plate is mounted on the three planetary gears, the transmission shaft is mounted on the intermediate gears and the first gear, the rotating shaft is mounted on the second gear and the third gear, the output shaft is mounted on the fourth gear, and then the above-assembled parts are mounted in the gear box; S4: Install the fixed plate on the transmission shaft, install all the components on the energy storage shaft, and then install the above-installed components into the gear box described in S3.

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