A wind power gear box for new energy generating set

Abstract

The present application relates to the field of wind power generation technology, specifically to a wind power gear box for new energy generating set, comprising a fan blade connected to one end of an output shaft close to a folding pipe, the other end of the output shaft extending to the outside of a rear shell, an air suction cover is arranged on the rear shell, an arc-shaped heat sink is arranged at the lower end of the air suction cover, the arc-shaped heat sink is connected to a filter box through a curved communication pipe, a functional pipe extending to the bottom is arranged at the lower end of the filter box, the beneficial effects are that: through the cooperation of the filter box and the arc-shaped heat sink, the circulation of the airflow in the gear box is realized, the influence of the surrounding environment air on the gear box is reduced, the high-speed flow of the internal airflow is realized by the fan blade, thereby ensuring the heat dissipation of the gear box; through the cooperation of the separable rotating shaft assembly and the folding pipe, the internal pressure change in the gear box is adapted, at the same time, the maintenance and repair of the internal structure of the gear box are facilitated, and the convenience and safety of the maintenance are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wind power generation technology, in particular to a wind power gear box for new energy generating set. BACKGROUND

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

[0003] The internal structure of the common wind power gear box is mainly the driving shaft connected to the wind fan, which realizes initial acceleration through the planetary wheel assembly, and converts low-speed rotation 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 line, thereby generating current.

[0004] However, in the actual operation process, since the gear box is installed in the high altitude, the air flow speed is large, and the gear box is greatly affected by the environment, especially in the sea or desert, the seawater or dust in the air entering the gear box will reduce the service life of the gear, and the gear box cannot be designed to be sealed due to the need for heat dissipation. The cost of air treatment of a single multi-gear box is high, and once damaged, the existing gear box is large in size and heavy in weight, and its disassembly and maintenance in high altitude are difficult. SUMMARY

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

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] A wind power gear box for new energy generating set, the wind power gear box comprises a front shell and a rear shell, the front shell and the rear shell are communicated through an extensible folding pipe, a driving shaft, a planetary wheel assembly, a first accelerating wheel set, a second accelerating wheel set and an output shaft are sequentially arranged in the wind power gear box, the driving shaft is connected to a wind power fan blade, the output shaft is connected to a generator, the first accelerating wheel set and the second accelerating wheel set are connected through a separable rotating shaft assembly, and the separable rotating shaft assembly is located in the folding pipe, a shunt air pipe is arranged at the lower end of the front shell, a plurality of air outlets communicating with the inner cavity of the front shell are arranged at one end of the shunt air pipe, a filter box is connected to the other end of the shunt air pipe, a fan blade is connected to one end of the output shaft close to the folding pipe, the other end of the output shaft extends to the outside of the rear shell, an air inlet cover is arranged on the rear shell, an arc-shaped heat dissipation plate is arranged at the lower end of the air inlet cover, the arc-shaped heat dissipation plate is connected to the filter box through a curved communication pipe, and a functional pipe extending to the bottom is arranged at the lower end of the filter box.

[0008] Preferably, the two ends of the folded pipe are provided with a circumferential array of fixing holes, the two ends of the folded pipe are fixed to the front shell and the rear shell by bolts inserted into the fixing holes, the side of the folded pipe close to the front shell is provided with mounting holes staggered with the fixing holes, the other side of the folded pipe is provided with threaded rods opposite the mounting holes, the mounting holes are sleeved on the threaded rods after the folded pipe is compressed, and the mounting holes are fixed by rotating the nuts at the ends of the threaded rods.

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

[0010] Preferably, the side end of the rear shell close to the generator is connected with a protective cover, the end of the protective cover is provided with a concave limiting groove, the output shaft is provided with a rotating stop ring located in the limiting groove, and the lower end of the protective cover is opposite the air inlet cover.

[0011] Preferably, the lower end of the air inlet cover is communicated with an air inlet pipe, the air inlet pipe is fixed to the arc-shaped heat sink, the inner cavity of the arc-shaped heat sink is arranged 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 circumferential array of the inner wall of the arc-shaped heat sink, and the upper end of the heat dissipation inner cavity is provided with a communication pipe laterally communicated with the lower end inner cavity of the filter box.

[0012] Preferably, the inner cavity of the filter box is provided with a filter screen at the upper end, the inner cavity of the filter box is communicated with a functional pipe at the lower end, 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 comprises a first rotating rod and a second rotating rod, the first rotating rod is connected with a first accelerating wheel group, one end of the second rotating rod is connected with a second accelerating wheel group, and the first rotating rod and the second rotating rod are relatively inserted and arranged.

[0014] Preferably, the first rotating rod is provided with a stepped slot, the second rotating rod is provided with an extension inner cavity, a tapered piston rod is slidably inserted into the extension inner cavity, one end of the tapered piston rod is provided with a piston sliding along the extension inner cavity, the other end of the tapered piston rod is provided with a tapered head and is inserted into the stepped slot, a first spring is sleeved on the tapered piston rod and pressed on the piston, and an electric control air valve for controlling the pressure in the extension inner cavity is arranged at the outer end of the second rotating rod.

[0015] Preferably, a plurality of groups of clamping slots are arranged in a circumferential array on the inner wall of the stepped slot, and the end of the second rotating rod is provided with an extension cylinder which is inserted into the stepped slot port large diameter inner wall, and an elevating assembly corresponding to the clamping slots is elastically mounted on the extension cylinder, and the elevating assembly is extended into the clamping slots under the extrusion of the outer wall of the conical piston insertion rod.

[0016] Preferably, the elevating assembly comprises a clamping block and a ball head jib which are threadedly matched, the extension cylinder is provided with an elevating groove, the clamping block is located on the outside of the elevating groove, the ball head jib is located on the inside of the elevating groove, and a second spring is sleeved on the ball head jib, and the second spring is pressed downward on the hemisphere at the end of the ball head jib.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] By cooperating the filtering box and the arc-shaped heat dissipation plate, the present application realizes the circulation of the airflow in a small range in the gear box, reduces the influence of the surrounding environment air on the gear box, and utilizes the fan blade to realize the high-speed flow of the internal airflow, so as to ensure the heat dissipation of the gear box;

[0019] By cooperating the separable rotating shaft assembly and the folding pipe, the present application is adapted to the internal pressure change in the gear box, and is convenient for the maintenance and repair of the internal structure of the gear box, so that the convenience and safety of the maintenance are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

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

[0021] Figure 2 It is Figure 1 It is an enlarged view of structure at A in the middle;

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

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the elevating assembly of the present application;

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

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

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

[0027] Figure 8 It is a three-dimensional structural schematic diagram of the filtering box being installed on the front shell of the present application.

[0028] In the figure: 1, front shell; 2, rear shell; 3, folding pipe; 4, mounting ground rail; 6, fan blade; 7, protective cover; 8, baffle ring; 9, air suction cover; 10, air inlet pipe; 11, partition plate; 12, arc-shaped heat dissipation plate; 13, heat dissipation inner cavity; 14, exhaust port; 15, shunt air pipe; 16, filter box; 17, functional pipe; 18, communication 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, clamping groove; 27, stepped insertion groove; 28, lifting groove; 29, clamping block; 30, second spring; 31, ball head top rod; 32, screw rod; 33, nut; 34, wing plate; 35, fixed hole; 36, mounting hole; 50, driving shaft; 51, planetary gear assembly; 52, first accelerating wheel set; 53, second accelerating wheel set; 54, output shaft. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] Please refer to Figures 1 to 8 The present application provides a technical solution:

[0031] A wind power gear box for a new energy generator set, the wind power gear box comprising a front shell 1 and a rear shell 2, the front shell 1 and the rear shell 2 being communicated through a telescopic folding pipe 3, the wind power gear box being internally provided with a driving shaft 50, a planetary gear assembly 51, a first accelerating wheel set 52, a second accelerating wheel set 53 and an output shaft 54 connected in sequence, the driving shaft 50 being connected with a wind power fan blade, the output shaft 54 being connected with a generator, the folding pipe 3 being provided with a circumferential array of fixed holes 35 at both ends, the folding pipe 3 being fixed on the front shell 1 and the rear shell 2 through bolts inserted in the fixed holes 35 at both ends, the folding pipe 3 being provided with mounting holes 36 distributed in a staggered manner with the fixed holes 35 on one side close to the front shell 1, the folding pipe 3 being provided with screw rods 32 opposite the mounting holes 36 on the other side, the mounting holes 36 being sleeved on the screw rods 32 after the folding pipe 3 is compressed, and being fixed in position through nuts 33 screwed on the end of the screw rods 32.

[0032] By setting the flexible folding pipe 3, the internal pressure change caused by the airflow flowing in the wind power gear box is adapted, and the influence on transmission is avoided, and by setting the screw rods 32, the nuts 33 and the mounting holes 36, the folding pipe 3 is fixed after being disassembled in one direction, so that the wind power gear box can be opened at the middle position, and the maintenance and repair are facilitated.

[0033] The first accelerating wheel set 52 and the second accelerating wheel set 53 are connected through a separable rotating shaft assembly, and the separable rotating shaft assembly is located in the folding pipe 3. By arranging the separable rotating shaft assembly, the transmission is conveniently cut off at this position. With the transmission cut off, the rear shell and the generator gradually stop working, and the equipment is maintained.

[0034] The lower end of the front shell 1 is provided with a shunt air pipe 15, one end of the shunt air pipe 15 is provided with a plurality of groups of 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 with a filter box 16, the output shaft 54 is connected with the fan blade 6 at one end close to the folding pipe 3, the other end of the output shaft 54 extends to the outside of the rear shell 2, the rear shell 2 is provided with an air inlet hood 9, the lower end of the air inlet hood 9 is provided with an arc-shaped heat dissipation plate 12, the arc-shaped heat dissipation plate 12 is connected with the filter box 16 through a curved communication pipe 18, and the lower end of the filter box 16 is provided with a functional pipe 17 extending to the bottom.

[0035] The communication pipe 18, the filter box 16 and the arc-shaped heat dissipation plate 12 are arranged to realize the circulation of the airflow in the wind power gear box, and reduce the influence of the environment airflow on the inside.

[0036] Working principle: During the heat dissipation process, the rotating speed of the output shaft 54 is at least 1200 revolutions per minute due to the requirement of the wind power gear box for power generation, so the fan blade 6 is arranged to drive the internal airflow to flow rapidly, so as to achieve the purpose of internal heat dissipation. The airflow 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 inlet hood 9, and is fully heat-dissipated. The heat-dissipated airflow enters the filter box 16 for airflow filtration, and then enters the inside through the shunt air pipe 15 and the exhaust port 14, and flows rapidly under the action of the fan blade 6, so as to form a circulation.

[0037] During the maintenance process, the flexible deformation of the folding pipe 3 is utilized to adapt to the internal pressure change caused by the airflow flowing in the wind power gear box, so as to avoid affecting the transmission. The folding pipe 3 is folded and stored, so that the wind power gear box can be opened at the middle position, and then the separable rotating shaft assembly is arranged, so as to conveniently cut off the transmission at this position. With the transmission cut off, the rear shell and the generator gradually stop working, and the equipment is maintained.

[0038] In the embodiment 1, the lower ends of the front shell 1 and the rear shell 2 are fixed on the installation ground rail 4, the installation ground rail 4 is arranged on the high-altitude wind blade mounting seat, and 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] The installation ground rail 4 is arranged, so as to facilitate the stable installation of the wind power gear box.

[0040] The rear shell 2 is connected with a protective cover 7 at the side end close to the generator, the end of the protective cover 7 is provided with a concave limiting groove, the output shaft 54 is provided with a stop ring 8 rotating in the limiting groove, the lower end of the protective cover 7 is opposite to an air inlet cover 9, the lower end of the air inlet cover 9 is communicated with an air inlet pipe 10, the air inlet pipe 10 is fixed on an 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 plate 11 is arranged between 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 lower end through groove of the partition plate 11, the inner wall of the arc of the arc-shaped heat dissipation plate 12 is provided with a plurality of groups of wing plates 34 distributed in a circumferential array for heat dissipation, the upper end of the heat dissipation inner cavity 13 is provided with a communication pipe 18 laterally communicated with the lower end inner cavity of a filter box 16.

[0041] The protective cover 7 is arranged to guide the airflow, the arc-shaped heat dissipation plate 12 and the wing plates 34 are arranged to increase the heat dissipation area and improve the heat dissipation efficiency.

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

[0043] The filter screen 19 is arranged to filter the airflow after heat dissipation, so that the impurities adhere to the lower end of the filter screen 19, the functional pipe 17 is arranged to conveniently control the heat dissipation process, and since the functional pipe 17 can extend to the ground, high-altitude operation is not required, when normal heat dissipation, the port can be connected with a sealing plug to realize self-circulation of the airflow, or a pressure gauge can be installed to detect the internal pressure, when the internal pressure decreases due to the action of the fan blade 6, it indicates that the circulation is not smooth, and maintenance is required, an air pump can be arranged to assist the airflow, when there is no wind in the environment, the fan blade 6 does not rotate, so the impurities adhering to the lower end of the filter screen 19 fall downward along the functional pipe 17 to the ground, which is convenient for automatic cleaning.

[0044] In the 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 the first accelerating wheel set 52, one end of the second rotating rod 21 is connected with the second accelerating wheel set 53, the first rotating rod 20 and the second rotating rod 21 are relatively inserted and installed, the first rotating rod 20 is provided with a stepped insertion slot 27, the second rotating rod 21 is provided with an extension inner cavity 23, a tapered piston insertion rod 25 is slidably inserted in the extension inner cavity 23, one end of the tapered piston insertion rod 25 is provided with a piston sliding along the extension inner cavity 23, the other end of the tapered piston insertion rod 25 is provided with a tapered head and is inserted along the stepped insertion slot 27, the tapered piston insertion rod 25 is sleeved with a first spring 24 compressed on the piston, and the outer side end of the second rotating rod 21 is provided with an electric control air valve 22 controlling the pressure in the extension inner cavity 23.

[0045] Through setting the cooperation of the tapered piston insertion rod 25 and the telescopic inner cavity 23, the pneumatic telescopic control is realized.

[0046] The inner wall of the stepped slot 27 is provided with a plurality of groups of clamping grooves 26 distributed in a circumferential array, the end of the second rotating rod 21 is provided with an extension cylinder inserted into the inner wall of the stepped slot 27, an elevating assembly corresponding to the clamping groove 26 is elastically mounted on the extension cylinder, and the elevating assembly is extended into the clamping groove 26 under the extrusion of the outer wall of the tapered piston insertion rod 25; the elevating assembly comprises a clamping block 29 and a ball head jacking rod 31 in threaded cooperation, the extension cylinder is provided with an elevating groove 28, the clamping block 29 is located on the outer side of the elevating groove 28, the ball head jacking rod 31 is located on the inner side of the elevating groove 28, and a second spring 30 is sleeved on the ball head jacking rod 31, and the second spring 30 is pressed downward on the hemisphere at the end of the ball head jacking rod 31.

[0047] When working normally, the telescopic inner cavity 23 is supplied with gas through the electric control gas valve 22, the tapered piston insertion rod 25 is inserted and extended into the stepped slot 27, the ball head jacking rod 31 is driven to compress the second spring 30 upward due to the tapered extrusion at the end of the tapered piston insertion rod 25, and then the clamping block 29 is extended into the clamping groove 26, so that the misaligned clamping of the first rotating rod 20 and the second rotating rod 21 is formed, and the integrated transmission connection is formed.

[0048] When maintenance is needed, the electric control gas valve 22 is exhausted, the tapered piston insertion rod 2 is reset under the action of the first spring 24, the clamping block 29 is separated from the clamping groove 26, the rotating sleeve connection of the first rotating rod 20 and the second rotating rod 21 is formed, and the second rotating rod 21 will gradually stop under the action of friction, so that the linkage output shaft 54 and the generator stop working, and the maintenance is facilitated.

[0049] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A wind power gear box for a new energy power generating set, the wind power gear box comprising a front shell (1) and a rear shell (2), the front shell (1) and the rear shell (2) being communicated through an extensible folding pipe (3), and the wind power gear box being internally provided with a driving shaft (50), a planetary wheel assembly (51), a first accelerating wheel set (52), a second accelerating wheel set (53) and an output shaft (54) connected in sequence, the driving shaft (50) being connected with a wind power fan blade, and the output shaft (54) being connected with a generator, characterized in that: the first accelerating wheel set (52) and the second accelerating wheel set (53) are connected through a separable rotating shaft assembly, and the separable rotating shaft assembly is located in the folding pipe (3); a shunt air pipe (15) is arranged at a lower end of the front shell (1), one end of the shunt air pipe (15) is provided with a plurality of groups of air exhaust ports (14) communicating with an inner cavity of the front shell (1), the other end of the shunt air pipe (15) is connected with a filter box (16) downward, one end of the output shaft (54) close to the folding pipe (3) is connected with a fan blade (6), the other end of the output shaft (54) extends to an outer side of the rear shell (2), an air suction cover (9) is arranged on the rear shell (2), and an arc-shaped heat dissipation plate (12) is arranged at a lower end of the air suction cover (9); the arc-shaped heat dissipation plate (12) is connected with the filter box (16) through a curvedly extended communication pipe (18), and a functional pipe (17) extending to a bottom is arranged at a lower end of the filter box (16). Both ends of the folding pipe (3) are provided with circumferentially arrayed fixing holes (35), both ends of the folding pipe (3) are fixed on the front shell (1) and the rear shell (2) through bolts inserted in the fixing holes (35), a mounting hole (36) is arranged on one side of the folding pipe (3) in a staggered distribution mode with the fixing holes (35), a screw rod (32) is arranged on the other side of the folding pipe (3) opposite to the mounting hole (36), the mounting hole (36) is sleeved on the screw rod (32) after the folding pipe (3) is compressed, and the mounting hole (36) is fixed in position through a nut (33) threadedly rotated and fixed at an end of the screw rod (32).

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

3. The wind power gearbox for use in new energy generating units according to claim 2, characterized in that: A protective cover (7) is connected to one side end of the rear shell (2) close to the generator, an end of the protective cover (7) is provided with an inwardly recessed limiting groove, a stop ring (8) is arranged on the output shaft (54) and rotates in the limiting groove, and a lower end of the protective cover (7) is opposite to the air suction cover (9).

4. The wind power gearbox for use in new energy generating units according to claim 2, characterized in that: ​ 5. The wind power gearbox for use in new energy generating units according to claim 4, characterized in that: The lower end of the air suction cover (9) is communicated with an air inlet pipe (10), the air inlet pipe (10) is fixed on an arc-shaped heat dissipation plate (12), an inner cavity of the arc-shaped heat dissipation plate (12) is arranged as a heat dissipation inner cavity (13), a partition plate (11) is arranged between 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 a lower end through slot of the partition plate (11), a plurality of groups of wing plates (34) for heat dissipation are arranged in a circumferential array on the inner wall of the arc of the arc-shaped heat dissipation plate (12), and the upper end of the heat dissipation inner cavity (13) is provided with a communication pipe (18) which is laterally communicated with the lower end inner cavity of the filter box (16).

6. The wind power gearbox for use in new energy generating units according to claim 5, characterized in that: The inner cavity of the filter box (16) is provided with a filter screen (19) at the upper end, and the inner cavity of the filter box (16) is communicated with a functional pipe (17) at the lower end, and at least one of a sealing plug, an air pump or a pressure gauge can be connected to the port of the lower end of the functional pipe (17).

7. The wind power gearbox for use in new energy generating units according to claim 5, characterized in that: The separable rotating shaft assembly comprises a first rotating rod (20) and a second rotating rod (21), the first rotating rod (20) is connected with a first accelerating wheel group (52), one end of the second rotating rod (21) is connected with a second accelerating wheel group (53), and the first rotating rod (20) and the second rotating rod (21) are relatively inserted and installed.

8. The wind power gearbox for use in new energy generating units 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 an expansion inner cavity (23), a tapered piston plug rod (25) is slidably inserted into the expansion inner cavity (23), one end of the tapered piston plug rod (25) is provided with a piston which slides in the expansion inner cavity (23), the other end of the tapered piston plug rod (25) is provided with a tapered head which is inserted into the stepped slot (27), a first spring (24) is sleeved on the tapered piston plug rod (25) and is pressed on the piston, and an electric control air valve (22) for controlling the pressure in the expansion inner cavity (23) is arranged on the outer side end of the second rotating rod (21).

9. The wind power gearbox for use in new energy generating units according to claim 8, characterized in that: A plurality of groups of clamping grooves (26) are arranged in a circumferential array and are arranged through the inner wall of the stepped slot (27), an extension cylinder is arranged on the end of the second rotating rod (21) and is inserted into the port large-diameter inner wall of the stepped slot (27), an elevating assembly corresponding to the clamping grooves (26) is elastically mounted on the extension cylinder, and the elevating assembly extends into the clamping grooves (26) under the extrusion of the outer wall of the tapered piston plug rod (25).

10. The wind power gearbox for use in new energy generating units according to claim 9, characterized in that: The elevating assembly comprises a clamping block (29) and a ball head top rod (31) which are threadedly matched, the extension cylinder is provided with an elevating groove (28), the clamping block (29) is located on the outer side of the elevating groove (28), the ball head top rod (31) is located on the inner side of the elevating groove (28), and a second spring (30) is sleeved on the ball head top rod (31), and the second spring (30) is pressed downward on the hemisphere at the end of the ball head top rod (31).

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