Wind power gear box

By introducing automatic lubrication and recycling components into wind turbine gearboxes, the problems of low efficiency and lubricant waste caused by manual lubrication in traditional wind turbine gearboxes have been solved, achieving efficient lubrication and resource recycling, and reducing environmental pollution.

CN223814336UActive Publication Date: 2026-01-20菅玉敏 +2
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520562650.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-01-20
Estimated Expiration
2035-03-28

AI Technical Summary

Technical Problem

Traditional wind turbine gearboxes require manual disassembly for lubrication, which is inefficient and lacks effective lubricant recovery and filtration functions, resulting in resource waste and environmental pollution.

Method used

A wind turbine gearbox was designed, comprising an oil supply component and a recovery component. It utilizes a motor-driven forward and reverse rotating plate and a pressing block to achieve automatic oil supply and recovery, and combines a filter screen for preliminary filtration and reuse of the lubricating oil.

Benefits of technology

It achieves the convenience of automatic lubrication, reduces manual operation, improves lubrication maintenance efficiency, and effectively treats waste oil through recycling components, thereby improving resource recycling performance and reducing environmental pollution risks.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223814336U_ABST
    Figure CN223814336U_ABST
Patent Text Reader

Abstract

The utility model provides a wind power gear box, which belongs to the technical field of gear boxes and comprises a gear box body, a plurality of groups of oil inlet holes are arranged on the gear box body, a plurality of groups of fixing strips are arranged on the gear box body, arc groove plates are arranged on the plurality of groups of fixing strips, a bearing frame is clamped on the plurality of groups of arc groove plates, and a plurality of groups of mounting plates are arranged on the bearing frame. Multiple sets of fixing springs are arranged on the bearing frame, the multiple sets of mounting plates are located among the multiple sets of fixing springs, oil supply assemblies are arranged on the multiple sets of mounting plates, a recovery assembly is arranged on one side of the gearbox body, an oil tank is arranged on one side of the gearbox body, and one ends of the multiple sets of oil supply assemblies are clamped in the oil inlet holes correspondingly. According to the device, due to the arrangement of the oil feeding assembly, a user can automatically feed oil to parts in the gearbox, after the oil tank is connected through an oil pipe, the user can control an extrusion block to extract and release the oil tank by starting a motor to rotate forwards, and when the motor rotates forwards and backwards, an arranged rotary oil scraping column can be driven to clean oil left on an inner arm of an oil barrel.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model belongs to gear box technical field, more specifically, especially relate to a wind power gear box. BACKGROUND

[0002] In the wind power generation process, wind power gear box as a kind of commonly used transmission equipment, is widely used in the power transmission link of wind turbine generator unit, to facilitate user to convert the low-speed rotation of wind wheel into the high-speed rotation required by generator, to realize efficient electric energy conversion. However, the traditional device needs artificial auxiliary disassembly device to give oil, in the oiling process, artificial operation efficiency is low, and professional personnel needs to spend a lot of time and energy to disassemble relevant components each time to give oil, which not only increases the labor cost, but also causes the wind turbine generator unit downtime to be extended, affects the power generation efficiency;In addition, the traditional device lacks effective lubricating oil recycling and filtering reuse function, if not recycling and processing the used lubricating oil, it is easy to cause a large amount of waste of lubricating oil, and the limited resources are greatly consumed, and the economy of the traditional device in resource utilization is reduced. Moreover, the random discharge of waste lubricating oil can also pollute the surrounding soil, water and other environment, and increase the environmental protection treatment cost. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a wind power gear box to solve the technical problems that the traditional device needs artificial auxiliary disassembly device to give oil in the prior art, and the traditional device lacks effective lubricating oil recycling and filtering reuse function.

[0004] The purpose and effect of the wind power gear box of the utility model are achieved by the following specific technical means:

[0005] A kind of wind power gear box, including gear box body, multiple groups of oil inlet holes are set on the gear box body, multiple groups of fixed strips are arranged on the gear box body, multiple groups of the fixed strips are all equipped with arc groove plate, multiple groups of the arc groove plate are equipped with bearing frame, multiple groups of mounting plate are arranged on the bearing frame, multiple groups of fixed spring are arranged on the bearing frame, multiple groups of the mounting plate are located between multiple groups of the fixed spring, multiple groups of the mounting plate are all equipped with oiling assembly, recovery assembly is arranged on one side of the gear box body, oil tank is arranged on one side of the gear box body, and one end of multiple groups of the oiling assembly is respectively clamped on the oil inlet hole.

[0006] According to one preferred mode, the oil feeding assembly comprises an oil cylinder, one end of the oil cylinder is clamped on the mounting plate, a plurality of limiting bearing plates are arranged on the oil cylinder, a forward and reverse rotating plate is arranged on the oil cylinder, an extrusion block is arranged at the bottom of the forward and reverse rotating plate, an extrusion containing space block is arranged at the bottom of the extrusion block, and the extrusion containing space block is located between the plurality of limiting bearing plates and the extrusion block and the forward and reverse rotating plate.

[0007] According to one preferred mode, the oil feeding assembly further comprises a motor, the motor is located above the oil cylinder, the shaft end of the motor is connected with the forward and reverse rotating plate, and a protective shell is arranged on the mounting plate and connected with the oil cylinder.

[0008] According to one preferred mode, the oil feeding assembly further comprises a plurality of reset springs, the plurality of reset springs are clamped on the extrusion containing space block, one end of the plurality of reset springs is connected with the extrusion block, the extrusion containing space block is connected with one of the limiting bearing plates, and the limiting bearing plate and the extrusion containing space block are both provided with an air inlet hole.

[0009] According to one preferred mode, one of the limiting bearing plates is provided with a rotating column, one end of the rotating column is clamped on the extrusion containing space block, one end of the rotating column is fixedly connected with the extrusion containing space block, one end of the rotating column is sleeved with a rotating column, the rotating column is located below one of the limiting bearing plates, a plurality of supporting columns are arranged on the rotating column, and a rotating oil scraping column is sleeved on the supporting column.

[0010] According to one preferred mode, one end of the oil cylinder is provided with a oil injection head, the oil cylinder is threadedly connected with the oil injection head, a plurality of oil feeding assemblies are connected through oil pipes, one end of the oil pipe is connected with the oil tank, and a plurality of arc convex blocks are arranged on the forward and reverse rotating plate.

[0011] According to one preferred mode, the recycling assembly comprises a plurality of slide rails, the plurality of slide rails are located at the bottom of the gear box body, an oil outlet is arranged at the bottom of the gear box body, a collecting box is slidably connected on the plurality of slide rails, and a filter screen is arranged on the collecting box.

[0012] Compared with the prior art, the oil feeding assembly has the following beneficial effects:

[0013] 1. The device is provided with an oil feeding assembly, so that the user can realize automatic lubrication and oil feeding of the internal parts of the wind power gear box, and the convenience of oil feeding of the device is improved. After the oil feeding assembly is installed on the mounting plate of the bearing frame and connected with the oil tank through the oil pipe, the user can control the extraction and release of the extrusion block to the oil tank by driving the forward and reverse rotation plate to rotate when the motor is forward rotating, and when the motor is reverse rotating, the rotating oil scraping column provided by the extrusion block can clean the residual oil in the oil cylinder. The user does not need to manually add lubricating oil frequently, and the convenience and efficiency of the device in the lubrication and maintenance of the gear box are improved.

[0014] 2. When using the device, the user can conveniently collect the excess or outflow lubricating oil in the gear box running process through the recycling assembly, so that the user can effectively treat the waste oil, keep the working environment clean, and improve the convenience of the device in waste oil treatment. Then, the filter screen on the collection tank can preliminarily filter the recycled lubricating oil and separate the impurities therein, which is beneficial to the recycling and reuse of the lubricating oil, and improves the performance of the device in resource recycling. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the structure schematic diagram of the assembled device of the utility model;

[0016] Figure 2 is the structure schematic diagram of the split device of the utility model;

[0017] Figure 3 is the schematic diagram of the oil feeding assembly;

[0018] Figure 4 is the exploded view of the oil feeding assembly;

[0019] Figure 5 is Figure 4 is the enlarged view of a area in figure

[0020] Figure 6 is the internal structure schematic diagram of the oil feeding assembly.

[0021] In the figure, the correspondence between the component name and the drawing number is:

[0022] 11, gear box body; 12, fixed strip; 13, arc groove plate; 14, bearing frame; 15, mounting plate; 16, oil tank; 17, oil cylinder; 18, limiting bearing plate; 19, forward and reverse rotation plate; 21, extrusion block; 22, extrusion containing space block; 23, motor; 24, protective shell; 25, rotating column; 26, rotating column; 27, supporting column; 28, rotating oil scraping column; 29, oil injection head; 31, sliding rail; 32, collection tank; 33, filter screen. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the technical solutions of the present application, but cannot be used to limit the protection scope of the present application.

[0024] Embodiments

[0025] As Figures 1 to 4 shown, the utility model provides a kind of wind power gear box, including gear box body 11, gear box body 11 as the core component of entire wind power gear box, it can stably withstand the huge torque from wind wheel in the operation process, and power transmission, ensure the stable operation of entire wind power generation system, load gear box body 11 is equipped with multiple groups of oil inlet hole, these oil inlet holes are the key passageway that lubricating oil enters gear box interior, lubricates and protects each transmission component.Gear box body 11 is equipped with multiple groups of fixed strip 12, fixed strip 12 is connected with gear box body 11, provides installation base, multiple groups of fixed strip 12 are all equipped with arc groove plate 13, arc groove plate 13 is installed by cooperation with fixed strip 12.Carrying frame 14 provides the clamping position, multiple groups of arc groove plate 13 are clamped with carrying frame 14, carrying frame 14 is clamped with arc groove plate 13, ensure that there is no loosening displacement in the equipment operation process.Carrying frame 14 it carries multiple groups of mounting plate 15 and oil feeding assembly on mounting plate 15, also by multiple groups of fixed spring and mounting plate 15 mutually cooperate, for oil feeding assembly provide certain fixed.Carrying frame 14 is equipped with multiple groups of mounting plate 15, mounting plate 15 is firmly fixed on carrying frame 14, for oil feeding assembly provides reliable installation platform.Multiple groups of mounting plate 15 are located between multiple groups of fixed spring, fixed spring is connected carrying frame 14 on one hand, and is connected with mounting plate 15 on the other hand, by the elastic deformation of itself, absorb the vibration energy in the equipment operation process, protect oil feeding assembly from excessive vibration damage, ensure that oil feeding assembly can work stably.

[0026] The installation plate 15 is provided with an oil supply assembly, and the oil cylinder 17 in the oil supply assembly is clamped on the installation plate 15, so that the oil cylinder 17 cannot shake during the working process. The oil cylinder 17 serves as a storage and conveying carrier of lubricating oil, and is responsible for conveying the lubricating oil in the oil tank 16 to each part of the gear box body 11. The oil cylinder 17 is provided with a plurality of limiting bearing plates 18, which are fixedly connected with the oil cylinder 17, and provide limiting and bearing functions for the positive and negative rotation plates 19, the extrusion blocks 21 and the extrusion containing space blocks 22, so as to ensure that these components can move according to the predetermined track during the working process. The oil cylinder 17 is provided with the positive and negative rotation plates 19, which are installed by cooperating with the oil cylinder 17 and can rotate in the positive and negative directions in the oil cylinder 17. The bottom of the positive and negative rotation plates 19 is provided with the extrusion blocks 21, which can be driven to move synchronously when the positive and negative rotation plates 19 rotate. The bottom of the extrusion blocks 21 is provided with the extrusion containing space blocks 22, which are slidably connected with the extrusion blocks 21, and the extrusion containing space blocks 22, the extrusion blocks 21 and the positive and negative rotation plates 19 are all located between the plurality of limiting bearing plates 18. During the working process, the positive and negative rotation plates 19 rotate in the positive direction to drive the extrusion blocks 21 to extrude and extract the lubricating oil in the extrusion containing space blocks 22, so as to realize the quantitative extrusion of the lubricating oil and provide lubrication for the gear box body 11.

[0027] The oil supply assembly further includes a motor 23, which is located above the oil cylinder 17, and the shaft end of the motor 23 is connected with the positive and negative rotation plates 19 to provide power source for the rotation of the positive and negative rotation plates 19. The installation plate 15 is provided with a motor protection shell 24, which is connected with the oil cylinder 17. On the one hand, the motor protection shell 24 protects the motor 23 from the influence of external environmental factors such as dust and water vapor, thereby prolonging the service life of the motor 23. On the other hand, the motor protection shell 24 stably connects the motor 23 with the oil cylinder 17, so as to ensure the stability of the motor 23 during the working process.

[0028] The oil supply assembly further comprises a plurality of reset springs, which are clamped on the extrusion accommodating space block 22 and connected with the extrusion block 21 at one end. When the extrusion block 21 is extruded under the driving of the forward and reverse rotation plate 19, the reset spring can provide a reverse elastic force to reset the extrusion block 21 and prepare for the next extrusion action. The extrusion accommodating space block 22 is connected with one of the limiting bearing plates 18, and the limiting bearing plate 18 and the extrusion accommodating space block 22 are both provided with air suction holes. When the extrusion block 21 is reset, the lubricating oil delivered from the oil tank 16 through the oil pipe can be sucked through the air suction holes to realize automatic replenishment of the lubricating oil. The limiting bearing plate 18 is provided with a rotating column 25, one end of which is provided on the extrusion accommodating space block 22 and fixedly connected with the extrusion accommodating space block 22. The rotating column 25 is sleeved with a rotating column 26, which is located below the limiting bearing plate 18. The rotating column 26 is provided with a plurality of supporting columns 27, which are sleeved with a rotating oil scraping column 28. After the oil supply process is completed, the driving motor is reversed, the arc convex block provided on the forward and reverse rotation plate 19 drives the extrusion accommodating space block 22 to move, and then drives the rotating column 26 on the rotating column 25 to rotate, so that the rotating oil scraping column 28 rotates in the inner wall of the oil cylinder 17 to scrape the lubricating oil attached to the inner wall of the oil cylinder 17, thereby improving the utilization rate of the lubricating oil and avoiding waste of the lubricating oil. The oil cylinder 17 is provided with a oil injection head 29 at one end, and the oil cylinder 17 and the oil injection head 29 are connected by threads. This arrangement not only facilitates installation and disassembly, but also ensures the sealing of the connection to prevent leakage of lubricating oil. A plurality of oil supply assemblies are connected by oil pipes, one end of the oil pipe is connected with the oil tank 16, and a complete lubricating oil delivery network is formed. The oil tank 16 stores a large amount of lubricating oil to continuously provide lubricating resources for the entire oil supply system. The forward and reverse rotation plate 19 is provided with a plurality of arc convex blocks, which enable the extrusion block 21 to move according to its own curvature.

[0029] The gear box body 11 is provided with a recovery assembly on one side, and a plurality of slide rails 31 in the recovery assembly are located at the bottom of the gear box body 11 and connected with the gear box body 11, providing a sliding track for the collection box 32. An oil outlet is formed at the bottom of the gear box body 11, which is a channel for the lubricating oil used in the gear box to flow out. The collection box 32 is slidably connected on the plurality of slide rails 31 and can smoothly slide along the slide rails 31, so that the user can easily pull it out for cleaning or replacement when needed. The collection box 32 is provided with a filter screen 33, which is combined with the collection box 32. During the collection of lubricating oil, the filter screen 33 can filter the impurities in the lubricating oil, preliminarily purify the lubricating oil, provide convenience for the recycling of lubricating oil, reduce resource waste, and also reduce the risk of wear and tear of the gear box components caused by impurities.

[0030] As Figures 2 to 6As shown, the user in the use of the device, gear box body 11 on the opening with a plurality of oil hole, for lubricating oil into the internal lubrication of each transmission component provides an entrance, to extend the life of the component, maintain system high efficiency operation is essential. Gear box body 11 on the multiple fixed strip 12, adhere to its surface, for the whole structure to build a stable foundation framework. Fixed strip 12 on the arc groove plate 13, not only for the bearing frame 14 provides the card set position, but also can effectively buffer the equipment running when the vibration, enhance the stability of the connection parts. Bearing frame 14 firmly card in the arc groove plate 13, shoulder bearing multiple mounting plate 15 and oil supply assembly of the heavy task, at the same time with the help of fixed spring and mounting plate 15 cooperation, reduce the influence of vibration on the oil supply assembly. Mounting plate 15 is firmly fixed in bearing frame 14, for oil supply assembly provides reliable support. Oil cylinder 17 in the oil supply assembly, one end firmly card in the mounting plate 15, as the storage and transportation center of lubricating oil, responsible for the oil tank 16 of lubricating oil to the key parts of gear box body 11. Multiple limit bearing plate 18 on the oil cylinder 17, ensure that the positive and negative rotation plate 19, extrusion block 21 and other components move along the predetermined trajectory. Positive and negative rotation plate 19 is installed in the oil cylinder 17, can be positive and negative rotation, its bottom connected with extrusion block 21 synchronous action, extrusion below extrusion containing space block 22 air, realize the quantitative extrusion of oil in the oil tank, provide lubrication for the gear box. Motor 23 is located above the oil cylinder 17, through the shaft end and the positive and negative rotation plate 19 connected, for its rotation power. The protective shell 24 on the mounting plate 15, not only protects the motor 23 from the influence of the external environment, but also stabilizes the connection between the motor and the oil cylinder 17. Multiple reset spring one end connected with extrusion containing space block 22, one end connected with extrusion block 21, after extrusion action makes the extrusion block 21 reset, cooperate with the air inlet hole on the limit bearing plate 18 and extrusion containing space block 22, realize the automatic replenishment of lubricating oil. Rotation column 25 penetrates through the limit bearing plate 18 and extrusion containing space block 22, drives the rotation column 26 and rotation oil scraping column 28, scrapes the oil in the oil cylinder 17 wall, improves the utilization rate. The oil injection head 29 at one end of the oil cylinder 17 is threadedly connected with the oil cylinder 17, which ensures the sealing and prevents leakage. Multiple oil supply assemblies are connected through oil pipes, one end of the oil pipe is connected with the oil tank 16, forming a complete lubricating and conveying network. The arc circle protrusion on the positive and negative rotation plate 19 increases the friction force with the extrusion block 21, improving the extrusion efficiency. The recycling assembly is arranged on one side of the gear box body 11, and multiple slide rails 31 are installed at the bottom to provide sliding tracks for the collection tank 32. The gear box discharges used lubricating oil through the oil outlet at the bottom. The filter screen 33 on the collection tank 32 filters the lubricating oil for recycling, reducing the risk of wear and tear of the components by impurities. The other side of the oil tank 16 supplies lubricating oil to the oil supply assembly through the oil pipe, ensuring the stable operation of the gear box and providing a solid guarantee for the efficient and stable output of wind power generation.

[0031] The specific use and role of the embodiment are as follows: during the operation of the wind power gear box, the gear box body 11 as the core is installed in the power transmission link of the wind turbine generator set to connect the wind wheel and the generator, and converts the low-speed rotation of the wind wheel into the high-speed rotation of the generator, and the oil inlet hole is used to introduce lubricating oil. The fixed strip 12 is installed on the gear box body 11, the arc groove plate 13 is arranged on the fixed strip 12, the arc groove plate 13 is clamped to the bearing frame 14 through a unique arc groove, which not only positions the bearing frame 14, but also buffers the operation vibration, and the fixed strip 12 provides the overall installation basis. The bearing frame 14 is fixedly installed with the mounting plate 15, the fixed spring between the two uses elastic buffering to protect the oil feeding assembly on the mounting plate 15, and the bearing frame 14 is responsible for bearing these components. In the oil feeding assembly, one end of the oil cylinder 17 is clamped to the mounting plate 15, the other end is threadedly connected with the oil injection head 29 for oil injection, the limiting bearing plate 18 in the oil cylinder 17 provides limiting and supporting for other components, and the lubricating oil stored in the oil cylinder 17 is sprayed to the oil inlet hole through the oil injection head 29; the positive and negative rotation plate 19 is in the oil cylinder 17, the extrusion block 21 connected to the bottom of the positive and negative rotation plate 19 extrudes the lubricating oil in the extrusion containing space block 22 below, realizes quantitative oil discharge, and the three are between the limiting bearing plate 18; the motor 23 is located above the oil cylinder 17, the shaft end of the motor 23 is connected with the positive and negative rotation plate 19 to provide rotating power, the motor protection shell 24 is installed on the mounting plate 15 and connected with the oil cylinder 17, protects the motor 23 and stably connects; one end of the reset spring is connected with the extrusion containing space block 22, and the other end is connected with the extrusion block 21, so that the extrusion block 21 is reset after extrusion, the limiting bearing plate 18 and the air inlet hole on the extrusion containing space block 22 cooperate with the reset spring to suck in the lubricating oil to realize automatic replenishment, the rotating column 25 penetrates through the limiting bearing plate 18 and the extrusion containing space block 22 and is fixed, the lower end of the rotating column 25 is sleeved with the rotating column 26, the supporting column 27 on the rotating column 26 is sleeved with the rotating oil scraping column 28, and the lubricating oil on the inner wall of the oil cylinder 17 is scraped off to improve the utilization rate during oil feeding; in the recovery assembly, the sliding rail 31 at the bottom of the gear box body 11 is slidably connected with the collecting box 32, the oil outlet at the bottom of the gear box body 11 discharges used lubricating oil to the collecting box 32, the filter screen 33 on the collecting box 32 filters impurities to facilitate the recycling and reuse of the lubricating oil, and the wear of the components is reduced; the oil tank 16 is connected with multiple oil feeding assemblies through oil pipes, continuously provides lubricating oil for the oil feeding system, and ensures the stable operation of the gear box.

[0032] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A wind turbine gearbox comprising a gearbox body (11), characterised in that: The gear box body (11) is provided with a plurality of oil inlet holes, and a plurality of fixed strips (12) are arranged on the gear box body (11), and an arc groove plate (13) is arranged on each fixed strip (12), a bearing frame (14) is clamped on the arc groove plate (13), a plurality of mounting plates (15) are arranged on the bearing frame (14), a plurality of fixed springs are arranged on the bearing frame (14), a plurality of mounting plates (15) are arranged between the fixed springs, an oil feeding assembly is arranged on each mounting plate (15), a recovery assembly is arranged on one side of the gear box body (11), an oil tank (16) is arranged on one side of the gear box body (11), and one end of each oil feeding assembly is clamped on the oil inlet hole.

2. A wind turbine gearbox according to claim 1, characterised in that: The oil feeding assembly comprises an oil cylinder (17), one end of the oil cylinder (17) is clamped on the mounting plate (15), a plurality of limiting bearing plates (18) are arranged on the oil cylinder (17), a forward and reverse rotating plate (19) is arranged on the oil cylinder (17), an extrusion block (21) is arranged at the bottom of the forward and reverse rotating plate (19), an extrusion containing space block (22) is arranged at the bottom of the extrusion block (21), and the extrusion containing space block (22), the extrusion block (21) and the forward and reverse rotating plate (19) are located between the plurality of limiting bearing plates (18).

3. A wind turbine gearbox according to claim 2, characterised in that: The oil feeding assembly further comprises a motor (23), the motor (23) is located above the oil cylinder (17), the shaft end of the motor (23) is connected with the forward and reverse rotating plate (19), and a protection shell (24) is arranged on the mounting plate (15) and connected with the oil cylinder (17).

4. A wind turbine gearbox according to claim 3, characterised in that: The oil feeding assembly further comprises a plurality of reset springs, each reset spring is clamped on the extrusion containing space block (22), one end of each reset spring is connected with the extrusion block (21), the extrusion containing space block (22) is connected with one of the limiting bearing plates (18), and an air inlet hole is arranged on one of the limiting bearing plates (18) and the extrusion containing space block (22).

5. A wind turbine gearbox according to claim 4, characterised in that: One of the limiting bearing plates (18) is provided with a rotating column (25), one end of the rotating column (25) penetrates the extrusion containing space block (22), one end of the rotating column (25) is fixedly connected with the extrusion containing space block (22), one end of the rotating column (25) is sleeved with a rotating column (26), the rotating column (26) is located below one of the limiting bearing plates (18), a plurality of supporting columns (27) are arranged on the rotating column (26), and a rotating oil scraping column (28) is sleeved on each supporting column (27).

6. A wind turbine gearbox according to claim 5, characterised in that: One end of the oil cylinder (17) is provided with a oil injection head (29), the oil cylinder (17) is threadedly connected with the oil injection head (29), a plurality of oil pipes are connected between the oil feeding assemblies, one end of the oil pipe is connected with the oil tank (16), and a plurality of arc convex blocks are arranged on the forward and reverse rotating plate (19).

7. A wind turbine gearbox according to claim 1, characterised in that: The recycling assembly comprises a plurality of slide rails (31) located at the bottom of the gearbox body (11), the bottom of the gearbox body (11) is provided with an oil outlet, and a plurality of slide rails (31) are slidably connected with a collecting box (32), and the collecting box (32) is provided with a filter screen (33).