Wind power gear box used in new energy generator set

Abstract

The invention relates to the technical field of wind power generation, in particular to a wind power gear box used in a new energy generator set, which comprises an output shaft, one end close to a folding pipe is connected with fan blades, the other end of the output shaft extends to the outer side of a rear shell, the rear shell is provided with an air suction cover, and the lower end of the air suction cover is provided with an arc-shaped heat dissipation plate; the gear box has the beneficial effects that through the cooperation of the filter box and the arc-shaped heat dissipation plate, small-range circulation of air flow in the gear box is achieved, the influence of ambient air on the gear box is reduced, the service life of the gear box is prolonged, the service life of the gear box is prolonged, the service life of the gear box is prolonged, and the service life of the gear box is prolonged. High-speed flowing of internal airflow is achieved through the fan blades, and therefore heat dissipation in the gearbox is guaranteed; through the cooperation of the separable rotating shaft assembly and the folding pipe, the internal pressure change in the gearbox is adapted, meanwhile, the internal structure of the gearbox is convenient to overhaul and maintain, and the convenience and safety of maintenance are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and specifically to a wind power gearbox for a new energy generating set. Background Art

[0002] Wind power generation belongs to clean energy. Its principle is to convert wind energy into sliding kinetic energy by means of fan blades, and then convert the kinetic energy into electrical energy. In the process of realizing its principle, a gear shaft is a necessary device, which can convert the low-speed and high-torque kinetic energy transmitted by the fan blades into high-speed rotating kinetic energy.

[0003] The internal structure of a common wind power gearbox is mostly that the drive shaft is connected to the wind turbine blades, the initial acceleration is achieved through a planetary gear assembly, and the low-speed rotation is converted into high-speed rotation through the meshing transmission of multiple gears with different transmission ratios, and then acts on the generator to cut the magnetic induction lines, thereby generating current.

[0004] However, in the actual operation process, since the gearbox is installed at a high altitude, the air flow speed is fast, and the gearbox is greatly affected by the environment. Especially when used at sea or in the desert, the seawater or dust in the air entering the gearbox will reduce the gear life. Moreover, the gearbox cannot be designed to be airtight for heat dissipation needs, and the cost of air treatment for a single gearbox is high. Once damaged, the existing gearbox is large in volume and heavy in weight, and its disassembly and maintenance at high altitude are relatively difficult. Summary of the Invention

[0005] The purpose of the present invention is to provide a wind power gearbox for a new energy generating set to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A wind power gearbox for a new energy generating set, the wind power gearbox includes a front shell and a rear shell, and the front shell and the rear shell are connected through a telescopic folding tube. Inside the wind power gearbox, there are a drive shaft, a planetary gear assembly, a first acceleration wheel set, a second acceleration wheel set, and an output shaft connected in sequence. The drive shaft is connected to the wind turbine blades, and the output shaft is connected to the generator. The first acceleration wheel set and the second acceleration wheel set are connected through a separable rotating shaft assembly, and the separable rotating shaft assembly is located in the folding tube. A shunt air pipe is provided at the lower end of the front shell. One end of the shunt air pipe is provided with multiple exhaust ports communicating with the inner cavity of the front shell, and the other end of the shunt air pipe is connected downward to a filter box. One end of the output shaft close to the folding tube is connected with a fan blade, and the other end of the output shaft extends to the outside of the rear shell. An air suction hood is provided on the rear shell, and an arc-shaped heat dissipation plate is provided at the lower end of the air suction hood. The arc-shaped heat dissipation plate is connected to the filter box through a communicating pipe extending in a curved manner. The lower end of the filter box is provided with a functional pipe extending to the bottom.

[0008] Preferably, fixed holes are arranged at both ends of the folding tube in a circumferentially arrayed manner. Both ends of the folding tube are respectively fixed on the front shell and the rear shell through bolts inserted into the fixed holes. An installation hole is arranged on one side of the folding tube close to the front shell and is distributed in a dislocation manner with respect to the fixed hole. A screw rod is arranged on the other side of the folding tube opposite to the installation hole. After the folding tube is compressed, the installation hole is sleeved on the screw rod, and is limited and fixed by a nut rotatably installed at the end of the screw rod through threads.

[0009] Preferably, the lower ends of the front shell and the rear shell are fixed on the installation ground rail, and the installation ground rail is arranged on the blade mounting seat at a high altitude. The filter box and the arc-shaped heat dissipation plate are located at the lower end of the installation ground rail.

[0010] Preferably, a protective cover is connected to one end of the rear shell close to the generator. A concave limiting groove is arranged at the end of the protective cover. A retaining ring that rotates in the limiting groove is arranged on the output shaft. The lower end of the protective cover faces the suction hood.

[0011] Preferably, the lower end of the suction hood is communicated with an air inlet pipe, and the air inlet pipe is fixed on the arc-shaped heat dissipation plate. The inner cavity of the arc-shaped heat dissipation plate is set as a heat dissipation inner cavity. A partition plate is arranged between the heat dissipation inner cavity and the inner cavity of the air inlet pipe. The heat dissipation inner cavity and the inner cavity of the air inlet pipe are communicated through a through groove at the lower end of the partition plate. A plurality of groups of wing plates for heat dissipation are arranged on the arc inner wall of the arc-shaped heat dissipation plate in a circumferentially arrayed manner. A communication pipe that is laterally communicated with the lower end inner cavity of the filter box is arranged at the upper end of the heat dissipation inner cavity.

[0012] Preferably, a filter screen is arranged at the upper end of the inner cavity of the filter box. The lower end of the inner cavity of the filter box is communicated with a functional pipe, and at least one of a sealing plug, an air pump or a pressure gauge can be connected to the lower end port of the functional pipe.

[0013] Preferably, the separable rotating shaft assembly includes a first rotating rod and a second rotating rod. The first rotating rod is connected to a first acceleration wheel set. One end of the second rotating rod is connected to a second acceleration wheel set. The first rotating rod and the second rotating rod are relatively inserted and installed.

[0014] Preferably, a stepped slot is arranged in the first rotating rod, a telescopic inner cavity is arranged in the second rotating rod, a tapered piston insertion rod is slidably inserted in the telescopic inner cavity, a piston that slides along the telescopic inner cavity is arranged at one end of the tapered piston insertion rod, the other end of the tapered piston insertion rod is set as a tapered head and is inserted along the stepped slot, a first spring that is pressed on the piston is sleeved on the tapered piston insertion rod, and an electric control air valve for controlling the internal pressure in the telescopic inner cavity is arranged at the outer end of the second rotating rod.

[0015] Preferably, a plurality of card slots distributed in a circumferential array are penetratingly arranged on the inner wall of the stepped slot. An extension cylinder inserted on the large-diameter inner wall of the stepped slot port is arranged at the end of the second rotating rod. A lifting component corresponding to each card slot is elastically installed on the extension cylinder. The lifting component extends into the card slot under the extrusion of the outer wall of the conical piston rod.

[0016] Preferably, the lifting component includes a block and a spherical head ejector rod that are in threaded cooperation. A lifting groove is arranged on the extension cylinder. The block is located outside the lifting groove, and the spherical head ejector rod is located inside the lifting groove. A second spring is sleeved on the spherical head ejector rod, and the second spring presses downward on the hemispherical body at the end of the spherical head ejector rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] By setting the cooperation of the filter box and the arc-shaped heat dissipation plate, the present invention realizes a small-range circulation of the air flow inside the gearbox, reduces the influence of the surrounding ambient air on the gearbox, and uses the fan blades to realize the high-speed flow of the internal air flow, thereby ensuring the heat dissipation inside the gearbox;

[0019] By using the cooperation of the separable rotating shaft assembly and the folding pipe, it is adapted to the internal pressure change inside the gearbox, and at the same time, it is convenient for the inspection and maintenance of the internal structure of the gearbox, greatly improving the convenience and safety of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present invention;

[0021] Figure 2 is Figure 1 the enlarged structure diagram at A in

[0022] Figure 3 is a three-dimensional structural diagram of the separable rotating shaft assembly of the present invention;

[0023] Figure 4 is a three-dimensional structural diagram of the lifting component of the present invention;

[0024] Figure 5 is a schematic structural diagram of the folding pipe of the present invention stored on the rear shell;

[0025] Figure 6 is a three-dimensional structural diagram of the present invention;

[0026] Figure 7 is a three-dimensional structural diagram of the arc-shaped heat dissipation plate of the present invention installed on the rear shell;

[0027] Figure 8 is a three-dimensional structural diagram of the filter box of the present invention installed on the front shell.

[0028] In the figure: 1. Front shell; 2. Rear shell; 3. Folding tube; 4. Installation ground rail; 6. Fan blade; 7. Protective cover; 8. Retaining ring; 9. Suction hood; 10. Air inlet pipe; 11. Partition board; 12. Arc-shaped heat dissipation plate; 13. Heat dissipation inner cavity; 14. Exhaust port; 15. Shunt air pipe; 16. Filter box; 17. Function pipe; 18. Connecting pipe; 19. Filter screen; 20. First rotating rod; 21. Second rotating rod; 22. Electric control air valve; 23. Telescopic inner cavity; 24. First spring; 25. Conical piston insertion rod; 26. Card slot; 27. Step slot; 28. Lifting slot; 29. Block; 30. Second spring; 31. Ball head push rod; 32. Screw rod; 33. Nut; 34. Wing plate; 35. Fixing hole; 36. Installation hole; 50. Driving shaft; 51. Planetary gear assembly; 52. First acceleration wheel set; 53. Second acceleration wheel set; 54. Output shaft. Specific implementation mode

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 to 8 , the present invention provides a technical solution:

[0031] A wind power gearbox for a new energy generating set, the wind power gearbox includes a front shell 1 and a rear shell 2, and the front shell 1 and the rear shell 2 are connected through a telescopic folding tube 3. Inside the wind power gearbox, there are a driving shaft 50, a planetary gear assembly 51, a first acceleration wheel set 52, a second acceleration wheel set 53 and an output shaft 54 connected in sequence. The driving shaft 50 is connected to the wind turbine fan blade, and the output shaft 54 is connected to the generator. The two ends of the folding tube 3 are provided with fixing holes 35 distributed in a circumferential array. The two ends of the folding tube 3 are respectively fixed on the front shell 1 and the rear shell 2 through bolts inserted into the fixing holes 35. One side of the folding tube 3 close to the front shell 1 is provided with installation holes 36 misaligned with the fixing holes 35. The other side of the folding tube 3 is provided with a screw rod 32 opposite to the installation holes 36. After the folding tube 3 is compressed, the installation holes 36 are sleeved on the screw rod 32 and are limited and fixed by a nut 33 screwed on the end of the screw rod 32.

[0032] By setting the flexible folding tube 3, the internal pressure change caused by the airflow inside the wind power gearbox is adapted, avoiding affecting the transmission. By setting the cooperation of the screw rod 32, the nut 33 and the installation holes 36, the fixing after the one-way disassembly of the folding tube 3 is realized, so that the wind power gearbox can be opened at the middle position, which is convenient for inspection and maintenance.

[0033] The first acceleration wheel set 52 and the second acceleration wheel set 53 are connected by a separable rotating shaft assembly, and the separable rotating shaft assembly is located in the folding tube 3. By setting the separable rotating shaft assembly, it is convenient to cut off the transmission at this position. As the transmission is cut off, the rear shell and the generator gradually stop working, realizing equipment shutdown maintenance.

[0034] A shunt air pipe 15 is arranged at the lower end of the front shell 1. One end of the shunt air pipe 15 is provided with multiple exhaust ports 14 communicating with the inner cavity of the front shell 1. The other end of the shunt air pipe 15 is connected downward to a filter box 16. One end of the output shaft 54 close to the folding tube 3 is connected with a fan blade 6, and the other end of the output shaft 54 extends to the outside of the rear shell 2. An air suction hood 9 is arranged on the rear shell 2. An arc-shaped heat dissipation plate 12 is arranged at the lower end of the air suction hood 9. The arc-shaped heat dissipation plate 12 is connected to the filter box 16 through a communicating pipe 18 extending by bending. A functional pipe 17 extending to the bottom is arranged at the lower end of the filter box 16.

[0035] By setting the communicating pipe 18, the filter box 16 and the arc-shaped heat dissipation plate 12, the internal air flow of the wind power gearbox is circulated, reducing the influence of the ambient air flow on its interior.

[0036] Working principle: During the heat dissipation process, due to the requirements of the wind power gearbox for power generation, the rotational speed of the output shaft 54 is at least 1200 revolutions per minute. Therefore, the fan blade 6 is set to drive the internal air flow to flow rapidly, achieving the purpose of internal heat dissipation. The air flow is discharged along the rear shell and enters the inner cavity of the arc-shaped heat dissipation plate 12 under the action of the air suction hood 9 for sufficient heat dissipation. The heat-dissipated air flow enters the filter box 16 for air flow filtration, and then enters the interior through the shunt air pipe 15 and the exhaust ports 14 and flows rapidly under the action of the fan blade 6, thus forming a cycle.

[0037] During the maintenance process, by utilizing the flexible deformation of the folding tube 3, it adapts to the internal pressure change caused by the internal air flow of the wind power gearbox, avoiding affecting the transmission. Through the folding and storage of the folding tube 3, it is convenient for the wind power gearbox to be opened at the middle position. Then, by setting the separable rotating shaft assembly, it is convenient to cut off the transmission at this position. As the transmission is cut off, the rear shell and the generator gradually stop working, realizing the equipment shutdown maintenance operation.

[0038] Embodiment 2: On the basis of Embodiment 1, the lower ends of the front shell 1 and the rear shell 2 are fixed on the installation ground rail 4, and the installation ground rail 4 is arranged on the wind blade mounting seat at a high altitude. The filter box 16 and the arc-shaped heat dissipation plate 12 are located at the lower end of the installation ground rail 4.

[0039] By setting the installation ground rail 4, it is convenient for the stable installation of the wind power gearbox.

[0040] One end of the rear shell 2 close to the generator is connected with a protective cover 7. The end of the protective cover 7 is provided with an inwardly concave limiting groove. A retaining ring 8 that rotates in the limiting groove is arranged on the output shaft 54. The lower end of the protective cover 7 faces the suction hood 9. The lower end of the suction hood 9 is communicated with an air inlet pipe 10. The air inlet pipe 10 is fixed on the arc-shaped heat dissipation plate 12. The inner cavity of the arc-shaped heat dissipation plate 12 is set as a heat dissipation inner cavity 13. A partition 11 is arranged between the inner cavity of the heat dissipation inner cavity 13 and the inner cavity of the air inlet pipe 10. The heat dissipation inner cavity 13 and the inner cavity of the air inlet pipe 10 are communicated through the through groove at the lower end of the partition 11. A plurality of groups of wing plates 34 for heat dissipation are arranged on the inner wall of the arc of the arc-shaped heat dissipation plate 12 in a circumferential array distribution. The upper end of the heat dissipation inner cavity 13 is provided with a communication pipe 18 that is laterally communicated with the lower end inner cavity of the filter box 16.

[0041] By arranging the protective cover 7, it is convenient to guide the air flow. Through the cooperation of the arc-shaped heat dissipation plate 12 extending in an arc and the wing plates 34, the heat dissipation area is increased and the heat dissipation efficiency is improved.

[0042] A filter screen 19 is arranged at the upper end of the inner cavity of the filter box 16. The lower end of the inner cavity of the filter box 16 is communicated with a functional pipe 17. At least one of a sealing plug, an air pump or a pressure gauge can be connected to the lower end port of the functional pipe 17.

[0043] By arranging the filter screen 19, the air flow after heat dissipation is filtered, so that impurities adhere to the lower end of the filter screen 19. By arranging the functional pipe 17, it is convenient to conveniently control the heat dissipation process. Since the functional pipe 17 can extend to the ground, there is no need for high-altitude operation. During normal heat dissipation, the port can be connected with a sealing plug to realize the self-circulation of the air flow. A pressure gauge can also be installed to detect the internal pressure. Due to the action of the fan blade 6, when the internal pressure decreases, it indicates that the circulation is not smooth and maintenance is required. An air pump can be set to intake air to assist the air flow. When there is no wind in the environment, the fan blade 6 does not rotate. Therefore, the impurities adhering to the lower end of the filter screen 19 lack the action of the air flow and fall downward, and fall to the ground along the functional pipe 17, which is convenient for automatic cleaning.

[0044] Embodiment 3: On the basis of Embodiment 2, the separable rotating shaft assembly includes a first rotating rod 20 and a second rotating rod 21. The first rotating rod 20 is connected with a first acceleration wheel set 52. One end of the second rotating rod 21 is connected with a second acceleration wheel set 53. The first rotating rod 20 and the second rotating rod 21 are relatively inserted and installed. A stepped slot 27 is arranged in the first rotating rod 20. A telescopic inner cavity 23 is arranged in the second rotating rod 21. A tapered piston plug rod 25 is slidably inserted in the telescopic inner cavity 23. One end of the tapered piston plug rod 25 is provided with a piston that slides along the telescopic inner cavity 23. The other end of the tapered piston plug rod 25 is provided with a tapered head and is inserted along the stepped slot 27. A first spring 24 that presses on the piston is sleeved on the tapered piston plug rod 25. An electric control air valve 22 for controlling the internal pressure in the telescopic inner cavity 23 is arranged at the outer end of the second rotating rod 21.

[0045] By setting the cooperation between the conical piston rod 25 and the telescopic inner cavity 23, its pneumatic telescopic control is realized.

[0046] On the inner wall of the stepped slot 27, a plurality of groups of clamping slots 26 distributed in a circumferential array are penetrated. At the end of the second rotating rod 21, an extension cylinder inserted on the inner wall of the large diameter of the port of the stepped slot 27 is provided. On the extension cylinder, a lifting component corresponding to each clamping slot 26 is elastically installed. The lifting component extends into the clamping slot 26 under the extrusion of the outer wall of the conical piston rod 25; the lifting component includes a clamping block 29 and a spherical head push rod 31 in threaded cooperation. On the extension cylinder, a lifting groove 28 is provided. The clamping block 29 is located outside the lifting groove 28, and the spherical head push rod 31 is located inside the lifting groove 28. And a second spring 30 is sleeved on the spherical head push rod 31, and the second spring 30 is pressed downward on the hemispherical body at the end of the spherical head push rod 31.

[0047] When working normally, air is supplied to the telescopic inner cavity 23 through the electric control air valve 22, driving the conical piston rod 25 to be inserted and extended into the stepped slot 27. Due to the conical extrusion at the end of the conical piston rod 25, the spherical head push rod 31 is driven to compress the second spring 30 upward, and then the clamping block 29 extends into the clamping slot 26, forming a misaligned clamping connection between the first rotating rod 20 and the second rotating rod 21, thus forming an integral transmission connection;

[0048] When shutdown maintenance is required, the electric control air valve 22 exhausts air, and the conical piston rod 2 is reset under the action of the first spring 24. The clamping block 29 disengages from the clamping slot 26, forming a rotational socket connection between the first rotating rod 20 and the second rotating rod 21. Under the action of friction, the second rotating rod 21 will gradually stop, and the linkage output shaft 54 and the generator stop working, facilitating shutdown maintenance.

[0049] 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 principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind power gearbox for a new energy generator set, the wind power gearbox comprising a front shell (1) and a rear shell (2), the front shell (1) and the rear shell (2) being connected via a retractable folding tube (3), the wind power gearbox being provided with a driving shaft (50), a planetary gear assembly (51), a first acceleration wheel assembly (52), a second acceleration wheel assembly (53) and an output shaft (54) connected in sequence, the driving shaft (50) being connected to a wind power fan blade, and the output shaft (54) being connected to a generator, characterized in that: The first acceleration wheel group (52) and the second acceleration wheel group (53) are connected via a detachable rotating shaft assembly, and the detachable rotating shaft assembly is located in the folding tube (3). A diversion air pipe (15) is provided at the lower end of the front shell (1), one end of the diversion air pipe (15) is provided with a plurality of exhaust ports (14) connected to the inner cavity of the front shell (1), and the other end of the diversion air pipe (15) is downwardly connected to a filter box (16). One end of the output shaft (54) close to the folding tube (3) is connected to a fan blade (6), and the other end of the output shaft (54) extends to the outside of the rear shell (2). An air suction hood (9) is provided on the rear shell (2), and an arc-shaped heat dissipation plate (12) is provided at the lower end of the air suction hood (9). The arc-shaped heat dissipation plate (12) is connected to the filter box (16) via a curved and extended connecting pipe (18), and a functional pipe (17) extending to the bottom is provided at the lower end of the filter box (16).

2. A wind power gearbox for use in a new energy generator set according to claim 1, characterized in that: The ends of both ends of the folding tube (3) are provided with fixing holes (35) distributed in a circumferential array. The two ends of the folding tube (3) are respectively fixed to the front shell (1) and the rear shell (2) by bolts inserted into the fixing holes (35). A mounting hole (36) staggered with the fixing hole (35) is provided on one side of the folding tube (3) close to the front shell (1). A screw rod (32) facing the mounting hole (36) is provided on the other side of the folding tube (3). After the folding tube (3) is compressed, the mounting hole (36) is sleeved on the screw rod (32) and is fixed by a nut (33) installed at the end of the screw rod (32) through threaded rotation.

3. A wind power gearbox for a new energy generator set according to claim 2, characterized in that: The lower ends of the front shell (1) and the rear shell (2) are fixed to a mounting rail (4), and the mounting rail (4) is arranged on a high-altitude fan blade mounting seat. The filter box (16) and the arc-shaped heat dissipation plate (12) are located at the lower end of the mounting rail (4).

4. A wind power gearbox for use in a new energy generator set according to claim 2, characterized in that: A protective cover (7) is connected to the end of the rear shell (2) close to the generator, an inwardly concave limiting groove is provided at the end of the protective cover (7), a retaining ring (8) is provided on the output shaft (54) and is located and rotated in the limiting groove, and the lower end of the protective cover (7) faces the air intake cover (9).

5. A wind power gearbox for use in a new energy generator set according to claim 4, characterized in that: The lower end of the air intake hood (9) is connected to the air intake pipe (10), and the air intake pipe (10) is fixed on the arc-shaped heat dissipation plate (12). The inner cavity of the arc-shaped heat dissipation plate (12) is set as a heat dissipation inner cavity (13). A partition (11) is arranged between the heat dissipation inner cavity (13) and the inner cavity of the air intake pipe (10). The heat dissipation inner cavity (13) and the inner cavity of the air intake pipe (10) are connected through a through groove at the lower end of the partition (11). A plurality of groups of heat dissipation wing plates (34) distributed in a circumferential array are arranged on the arc inner wall of the arc-shaped heat dissipation plate (12). A connecting pipe (18) is arranged at the upper end of the heat dissipation inner cavity (13) and is laterally connected to the inner cavity at the lower end of the filter box (16).

6. A wind power gearbox for use in a new energy generator set according to claim 5, characterized in that: The filter box (16) has a filter screen (19) at the upper end of the inner cavity, and the filter box (16) has a function tube (17) at the lower end thereof. The lower end of the function tube (17) can be connected to at least one of a sealing plug, an air pump or a pressure gauge.

7. A wind power gearbox for a new energy generator set according to claim 5, characterized in that: The detachable rotating shaft assembly comprises a first rotating rod (20) and a second rotating rod (21); the first rotating rod (20) is connected to a first accelerating wheel set (52); one end of the second rotating rod (21) is connected to a second accelerating wheel set (53); and the first rotating rod (20) and the second rotating rod (21) are relatively plug-connected and installed.

8. The wind power gearbox used in a new energy generator set according to claim 7, characterized in that: The first rotating rod (20) is provided with a stepped slot (27), the second rotating rod (21) is provided with a telescopic inner cavity (23), a conical piston rod (25) is slidably inserted in the telescopic inner cavity (23), one end of the conical piston rod (25) is provided with a piston that slides along the telescopic inner cavity (23), the other end of the conical piston rod (25) is provided with a conical head and is inserted along the stepped slot (27), a first spring (24) pressed on the piston is sleeved on the conical piston rod (25), and an electric control air valve (22) for controlling the internal pressure of the telescopic inner cavity (23) is provided at the outer end of the second rotating rod (21).

9. A wind power gearbox for use in a new energy generator set according to claim 8, characterized in that: The inner wall of the stepped slot (27) is penetrated by a plurality of groups of slots (26) distributed in a circumferential array, and the end of the second rotating rod (21) is provided with an extension tube plugged into the inner wall of the large diameter of the end of the stepped slot (27), and a lifting assembly corresponding to the slots (26) is elastically mounted on the extension tube, and the lifting assembly extends into the slot (26) under the pressure of the outer wall of the conical piston rod (25).

10. A wind power gearbox for use in a new energy generator set according to claim 9, characterized in that: The lifting assembly comprises a threaded block (29) and a ball head push rod (31); a lifting groove (28) is provided on the extension tube; the block (29) is located outside the lifting groove (28); the ball head push rod (31) is located inside the lifting groove (28); a second spring (30) is sleeved on the ball head push rod (31); the second spring (30) is pressed downward onto a hemisphere at the end of the ball head push rod (31).

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