Box body for wind power gear box, wind power gear box and wind turbine generator

Abstract

The utility model discloses a box body for a wind power gear box, the wind power gear box and a wind turbine generator, and relates to the technical field of gear boxes, the box body for the wind power gear box comprises an outer ring body and an inner ring body, in the radial direction of the box body for the wind power gear box, the inner ring body is located in the outer ring body, the inner ring body and the outer ring body are arranged in a spaced mode, and the outer ring body is located in the inner ring body; the inner ring body is connected with the outer ring body through a rib plate assembly; in the axial direction of the box body for the wind power gear box, the two sides of the outer ring body are used for connecting two gear rings, and in the radial direction of the box body for the wind power gear box, the inner side of the inner ring body is used for connecting a bearing. According to the box body for the wind power gear box, through the interval arrangement of the outer ring bodies and the inner ring bodies and the connection of the rib plate assemblies, the light weight and the structure optimization of the box body for the wind power gear box are achieved, the rigidity and the strength of the box body are effectively improved, and meanwhile the problems that in the prior art, a box body is large in weight, concentrated in stress and high in manufacturing cost are solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of gear boxes, in particular to a box body for a wind power gear box, a wind power gear box and a wind turbine. BACKGROUND

[0002] With the transformation of global energy structure and the rapid development of renewable energy, wind energy as a clean and sustainable energy form is increasingly valued in its development and utilization. Wind turbine as the core equipment of wind power generation, its performance directly affects the efficiency and reliability of wind power generation. The wind power gear box as a key transmission component in the wind turbine, undertakes the task of converting the low-speed rotation of the wind wheel into the high-speed rotation required by the generator. Therefore, the performance and reliability of the wind power gear box are crucial to the stable operation of the entire wind turbine.

[0003] Although the design and manufacturing technology of the wind power gear box has made certain progress, there are still some defects and deficiencies in the prior art. The traditional wind power gear box body often ignores the lightweight design of the box body while pursuing high rigidity and high strength, resulting in an increase in the weight of the entire gear box, which in turn affects the dynamic response and efficiency of the wind turbine. The existing box body structure has uneven stiffness and strength distribution when bearing complex load, which easily causes local stress concentration, affecting the service life and reliability of the gear box. These problems limit the further improvement of the performance of the wind power gear box and the wide application of the wind turbine. CONTENT OF THE INVENTION

[0004] The purpose of the present application is to provide a box body for a wind power gear box, which realizes the lightweight and structural optimization of the box body for the wind power gear box through the interval arrangement of the outer ring body and the inner ring body and the connection of the rib plate assembly, effectively improves the stiffness and strength of the box body, and solves the problems of large weight, stress concentration and high manufacturing cost of the box body in the prior art. Another purpose of the present application is to provide a wind power gear box and a wind turbine.

[0005] To achieve the above-mentioned purpose, the present application provides a box body for a wind power gear box, comprising an outer ring body and an inner ring body, wherein in the radial direction of the box body for the wind power gear box, the inner ring body is located inside the outer ring body, the inner ring body and the outer ring body are arranged at intervals, and the inner ring body and the outer ring body are connected through a rib plate assembly; in the axial direction of the box body for the wind power gear box, both sides of the outer ring body are used to connect two gear rings, and in the radial direction of the box body for the wind power gear box, the inner side of the inner ring body is used to connect a bearing.

[0006] In some embodiments, the rib plate assembly comprises:

[0007] a radial rib plate arranged between the outer ring body and the inner ring body along a radial direction of the wind power gear box body, the radial rib plate being configured to provide radial support to the outer ring body and the inner ring body.

[0008] In some embodiments, the number of radial rib plates is multiple groups, and the multiple groups of radial rib plates are distributed along an axial direction of the wind power gear box body.

[0009] In some embodiments, at least two radial rib plates meet in a direction extending from the outer ring body to the inner ring body.

[0010] In some embodiments, the rib plate assembly further comprises:

[0011] an axial rib plate arranged between any two radial rib plates along an axial direction of the wind power gear box body, the axial rib plate being configured to axially associate the multiple groups of radial rib plates to improve rigidity.

[0012] In some embodiments, the number of axial rib plates is multiple, and the multiple axial rib plates are distributed along a radial direction of the wind power gear box body.

[0013] In some embodiments, at least one group of radial rib plates is provided with multiple circumferential rib plates arranged along a circumferential direction of the wind power gear box body, and the rib plate assembly further comprises:

[0014] a circumferential rib plate arranged between the radial rib plates along a circumferential direction of the wind power gear box body, the circumferential rib plate being configured to circumferentially associate the multiple radial rib plates to improve rigidity.

[0015] In some embodiments, the radial rib plate comprises:

[0016] a first connecting section having a first end connected to the outer ring body;

[0017] a second connecting section having a first end connected to a second end of the first connecting section, the second connecting section and the first connecting section being smoothly connected, and a second end of the second connecting section being connected to the inner ring body.

[0018] The application also provides a wind power gear box comprising the wind power gear box body.

[0019] The application also provides a wind power generator comprising the wind power gear box.

[0020] With respect to the above background art, the box for a wind power gear box provided by the present application mainly comprises an outer ring body and an inner ring body. In the radial direction of the box for a wind power gear box, the inner ring body is located inside the outer ring body, the inner ring body and the outer ring body are spaced apart, and the inner ring body and the outer ring body are connected through a web plate assembly. In the axial direction of the box for a wind power gear box, the two sides of the outer ring body are used to connect two gear rings, and in the radial direction of the box for a wind power gear box, the inner side of the inner ring body is used to connect a bearing.

[0021] For the design of the box for a wind power gear box, the present technical solution realizes the lightweight and structural optimization of the box for a wind power gear box through the spaced apart arrangement of the outer ring body and the inner ring body and the connection of the web plate assembly, effectively improves the stiffness and strength of the box, and at the same time solves the problems of large weight, stress concentration and high manufacturing cost of the box in the prior art.

[0022] Specifically, the design of the box adopts an inner and outer ring body structure, in which the inner ring body is located inside the outer ring body and the two are spaced apart. This design reduces the use of materials, thereby reducing the weight of the box. The lightweight box helps to improve the dynamic response speed and efficiency of the wind turbine, and also reduces the additional manufacturing cost due to the increase in weight.

[0023] The inner ring body and the outer ring body are connected through a web plate assembly. This connection not only improves the structural stability of the box, but also effectively transfers and disperses the load by reasonably distributing the web plates, thereby reducing stress concentration points. Such a structural design improves the stiffness and strength of the box, so that the box can better withstand the torque and load generated by the gear box during operation, thereby prolonging the service life of the gear box.

[0024] In particular, the two sides of the outer ring body are used to connect two gear rings. This design makes the structure of the gear box more compact, reduces the volume and weight of the gear box, and at the same time maintains sufficient strength and stiffness. The inner side of the inner ring body is used to connect a bearing. This design helps to improve the support efficiency of the bearing and reduce additional stress caused by improper installation of the bearing, thereby prolonging the service life of the gear box.

[0025] In combination with the above structure and process description, it can be seen that the box for a wind power gear box at least has the following beneficial effects: the box for a wind power gear box realizes the lightweight and structural optimization of the box for a wind power gear box through the spaced apart arrangement of the outer ring body and the inner ring body and the connection of the web plate assembly, effectively improves the stiffness and strength of the box, and at the same time solves the problems of large weight, stress concentration and high manufacturing cost of the box in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to make the technical scheme of the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only need to be drawn based on the embodiments of the present application, and other drawings can be obtained by those of ordinary skill in the art without any creative effort.

[0027] Figure 1 A schematic view of a box and a gear ring for a wind power gear box is provided for the embodiments of the present application.

[0028] Figure 2 A schematic view of a box for a wind power gear box is provided for the embodiments of the present application.

[0029] Figure 3 A schematic view of a circumferential rib plate is provided for the embodiments of the present application.

[0030] Figure 4 Another schematic view of a circumferential rib plate is provided for the embodiments of the present application.

[0031] Wherein:

[0032] The outer ring body 1, the inner ring body 2, the rib plate assembly 3, the first gear ring 4, the second gear ring 5,

[0033] The radial rib plate 31, the first connecting section 3101, the second connecting section 3102, the first radial rib plate 311, the second radial rib plate 312, the third radial rib plate 313,

[0034] The axial rib plate 32, the first axial rib plate 321, the second axial rib plate 322,

[0035] The circumferential rib plate 33, the first circumferential rib plate 331, the second circumferential rib plate 332, the third circumferential rib plate 333. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the 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 of ordinary skill in the art without any creative effort belong to the scope of protection of the present application.

[0037] In order to make the technical scheme of the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only need to be drawn based on the embodiments of the present application, and other drawings can be obtained by those of ordinary skill in the art without any creative effort.

[0038] Please refer to Figure 1 , Figure 1 A schematic view of a box and a gear ring for a wind power gear box is provided for the embodiments of the present application.

[0039] In a first specific embodiment, the wind turbine gearbox housing provided by the present application mainly comprises an outer ring body 1 and an inner ring body 2. In the radial direction of the wind turbine gearbox housing, the inner ring body 2 is located inside the outer ring body 1, and the inner ring body 2 is spaced apart from the outer ring body 1. The inner ring body 2 is connected to the outer ring body 1 through a rib plate assembly 3. In the axial direction of the wind turbine gearbox housing, both sides of the outer ring body 1 are used to connect two gear rings. In the radial direction of the wind turbine gearbox housing, the inner side of the inner ring body 2 is used to connect a bearing.

[0040] As shown in Figure 1 The gear ring comprises a first gear ring 4 and a second gear ring 5. The wind turbine gearbox housing is mainly used to connect the first gear ring 4 and the second gear ring 5. The gear ring will deform during meshing and stress. Therefore, a high-stiffness, light-weight connecting middle housing is designed.

[0041] For the design of the wind turbine gearbox housing, the present technical solution realizes the lightweight and structural optimization of the housing through the spaced arrangement of the outer ring body 1 and the inner ring body 2 and the connection of the rib plate assembly 3, effectively improves the stiffness and strength of the housing, and solves the problems of large weight, stress concentration and high manufacturing cost of the housing in the prior art.

[0042] Specifically, the design of the housing adopts an inner and outer ring body structure, in which the inner ring body 2 is located inside the outer ring body 1, and the two are spaced apart. This design reduces the use of materials, thereby reducing the weight of the housing. The lightweight housing helps to improve the dynamic response speed and efficiency of the wind turbine generator, and also reduces the additional manufacturing cost caused by the increase in weight.

[0043] The inner ring body 2 is connected to the outer ring body 1 through the rib plate assembly 3. This connection not only improves the structural stability of the housing, but also effectively transfers and disperses the load by reasonably distributing the rib plates, thereby reducing the stress concentration points. Such a structural design improves the stiffness and strength of the housing, so that the housing can better withstand the torque and load generated by the gearbox during operation, thereby prolonging the service life of the gearbox.

[0044] In particular, both sides of the outer ring body 1 are used to connect two gear rings. This design makes the structure of the gearbox more compact, reduces the volume and weight of the gearbox, and maintains sufficient strength and stiffness. The inner side of the inner ring body 2 is used to connect a bearing. This design helps to improve the support efficiency of the bearing and reduce additional stress caused by improper bearing installation, thereby prolonging the service life of the gearbox.

[0045] In combination with the above structure and process description, it can be seen that the wind power gear box body has at least the following beneficial effects: the wind power gear box body is lightweight and structurally optimized through the spacing of the outer ring body 1 and the inner ring body 2 and the connection of the rib plate assembly 3, effectively improving the stiffness and strength of the body, and solving the problems of large weight, stress concentration and high manufacturing cost of the body in the prior art.

[0046] Please refer to Figure 2 , Figure 2 The wind power gear box body provided by the embodiment of the present application is shown in the schematic diagram.

[0047] In some embodiments, the rib plate assembly 3 includes:

[0048] The radial rib plate 31 is arranged between the outer ring body 1 and the inner ring body 2 in the radial direction of the wind power gear box body, and is used to provide radial support to the outer ring body 1 and the inner ring body 2.

[0049] In this embodiment, the rib plate assembly 3 is a key structure in the wind power gear box body, which includes radial rib plates 31. This design is to enhance the structural strength and stiffness of the body. The radial rib plate 31 is particularly arranged in the radial direction of the wind power gear box body, between the outer ring body 1 and the inner ring body 2. Such a layout allows the radial rib plate 31 to directly support the inner and outer ring bodies of the body. Since the wind power gear box will be subjected to various forces during operation, the design of the radial rib plate 31 helps to disperse these forces and reduce possible deformation, thereby protecting the structural integrity of the gear box. In this way, the radial rib plate 31 not only enhances the load-carrying capacity of the body, but also helps to improve the stability and reliability of the entire wind power gear box.

[0050] In some embodiments, the number of radial rib plates 31 is multiple groups, and the multiple groups of radial rib plates 31 are distributed in the axial direction of the wind power gear box body.

[0051] In this embodiment, in order to further enhance the structural stability and load-carrying capacity of the wind power gear box body, multiple groups of radial rib plates 31 are designed. These multiple groups of radial rib plates 31 are distributed along the axial direction of the body, meaning that they are evenly or as needed arranged in the length direction of the body, thereby forming a more balanced and comprehensive support structure. This design significantly improves the stiffness and strength of the body in the axial direction, especially when subjected to axial forces, the multiple groups of radial rib plates 31 can effectively disperse and transmit these forces, reduce local stress concentration, and avoid structural damage caused by uneven stress. In addition, the design of multiple groups of radial rib plates 31 also helps to improve the adaptability of the body to forces in different directions, so that the body can remain stable in a complex stress environment, which is crucial for improving the performance and life of the entire wind power gear box.

[0052] In some embodiments, the at least two radial webs 31 intersect in a direction extending from the outer ring body 1 to the inner ring body 2.

[0053] In the present embodiment, the at least two radial webs 31 are designed such that they intersect in a direction extending from the outer ring body 1 to the inner ring body 2. This structural design is equivalent to transforming the original two independent connection points (the end of each radial web 31) into a common connection point, i.e., the two radial webs 31 are jointly connected to the inner ring body 2 after intersection. Such a design effectively enhances the structural strength and stability of the box. Through this intersection connection method, the force from the outer ring body 1 to the inner ring body 2 can be more effectively transmitted and dispersed, thereby improving the carrying capacity and durability of the entire box. This design also helps to optimize the use of materials, reducing the amount of material needed to reduce the weight of the box while not sacrificing its structural performance, which is very important for the lightweight and high-performance requirements of wind turbine gearboxes.

[0054] Please continue to refer to Figure 2 In some cases, the radial webs 31 include a first radial web 311, a second radial web 312, and a third radial web 313, and the first radial web 311 intersects with the second radial web 312. The outer ring body 1 and the inner ring body 2 are connected by the first radial web 311, the second radial web 312, and the third radial web 313, thereby providing radial support. When the ring gear is loaded, the first radial web 311, the second radial web 312, and the third radial web 313 can provide radial stiffness to limit the overall radial deformation of the box.

[0055] In addition, the radial webs 31 can also be of other numbers and intersection forms, which should belong to the scope of the description of the present embodiment.

[0056] In some embodiments, the web assembly 3 further includes:

[0057] Axial webs 32 are arranged between any two radial webs 31 in the axial direction of the wind turbine gearbox box, and the axial webs 32 are used to achieve the correlation between multiple groups of radial webs 31 in the axial direction to improve the stiffness.

[0058] In the present embodiment, the web assembly 3 further includes axial webs 32, which are arranged between any two radial webs 31 in the axial direction of the wind turbine gearbox box. The main role of the axial webs 32 is to achieve the correlation between multiple groups of radial webs 31 in the axial direction, thereby improving the stiffness of the entire box. In this way, the axial webs 32 can enhance the interaction between the radial webs 31, making the force distribution of the box more uniform in the axial direction and reducing the possibility of local deformation.

[0059] This design is particularly helpful in maintaining the stability and reliability of the gearbox when facing different directions of force and torque during the operation of the wind turbine gearbox. The addition of axial ribs 32 allows the gearbox to disperse the force through multiple paths when subjected to axial force, reducing the load on individual radial ribs 31 and thus reducing the risk of stress concentration and improving the overall load-carrying capacity and durability of the gearbox. This is crucial for improving the performance and extending the service life of the wind turbine gearbox.

[0060] In some embodiments, the number of axial ribs 32 is multiple, and the multiple axial ribs 32 are distributed along the radial direction of the gearbox for wind turbine.

[0061] In this embodiment, the number of axial ribs 32 is designed to be multiple, and these axial ribs 32 are distributed along the radial direction of the gearbox for wind turbine. By increasing the number of axial ribs 32, more support points can be provided at different positions of the gearbox, further enhancing the overall stiffness and stability of the gearbox.

[0062] This radial distribution design allows each axial rib 32 to effectively connect and support adjacent radial ribs 31, forming a more compact and uniform support network. This structure not only improves the anti-deformation ability of the gearbox when subjected to external loads, but also effectively disperses and transmits the force applied to the gearbox, reducing the occurrence of local stress concentration.

[0063] Please continue to refer to Figure 2 In some cases, the axial ribs 32 include a first axial rib 321 and a second axial rib 322. The first axial rib 321 and the second axial rib 322 can associate the stiffness of the first radial rib 311, the second radial rib 312, and the third radial rib 313 to improve the overall stiffness of the gearbox.

[0064] Please refer to Figure 3 and Figure 4 , Figure 3 a schematic view of the circumferential rib provided in the embodiments of the present application, Figure 4 another schematic view of the circumferential rib provided in the embodiments of the present application.

[0065] In some embodiments, at least one group of radial ribs 31 is provided with multiple radial ribs 31 along the circumferential direction of the gearbox for wind turbine; the rib assembly 3 further comprises:

[0066] The circumferential rib 33 is arranged between the radial ribs 31 along the circumferential direction of the gearbox for wind turbine, and the circumferential rib 33 is used to associate multiple radial ribs 31 in the circumferential direction to improve the stiffness.

[0067] In this embodiment, at least one set of radial ribs 31 is arranged along the circumference of the wind turbine gearbox housing, which means that the radial ribs 31 are not only distributed along the axial direction but also arranged along the circumference of the housing, forming a more complex structural network. The rib assembly 3 also includes circumferential ribs 33, which are arranged between the radial ribs 31 along the circumference of the wind turbine gearbox housing. The main function of the circumferential ribs 33 is to realize the association of multiple radial ribs 31 in the circumferential direction, thereby improving the overall stiffness of the housing.

[0068] The design of the circumferential ribs 33 makes the connection of the housing in the circumferential direction more compact, enhancing the interaction and support between the radial ribs 31. This structural design helps to maintain the stability and structural integrity of the housing when the wind turbine gearbox is in operation, facing complex loads and torques. Through the arrangement of circumferential ribs 33, the force applied to the housing can be more effectively dispersed and transmitted, reducing local stress concentration and improving the anti-deformation ability and durability of the housing.

[0069] This combined design of circumferential and radial ribs forms a three-dimensional support structure, making the wind turbine gearbox housing have high stiffness and strength in all directions. This plays an important role in improving the performance and reliability of the wind turbine gearbox and prolonging its service life.

[0070] Please continue to refer to Figure 3 and Figure 4 In some cases, the circumferential ribs 33 include first circumferential ribs 331, second circumferential ribs 332, and third circumferential ribs 333. The first circumferential ribs 331, the second circumferential ribs 332, and the third circumferential ribs 333 enhance the stiffness and strength of the housing in the circumferential direction, i.e., the torsional direction. Specifically, the first circumferential ribs 331 and the second circumferential ribs 332 are arranged between the first radial ribs 311, both of which are annular, and the first circumferential ribs 331 are located outside the second circumferential ribs 332. The third circumferential ribs 333 are arranged between the third radial ribs 313, thereby associating the stiffness between the first radial ribs 311, the second radial ribs 312, and the third radial ribs 313 and improving the torsional stiffness and strength of the entire housing.

[0071] This structure independently distributes the first radial ribs 311, the second radial ribs 312, and the third radial ribs 313 for radial connection, supports the entire axial position of the outer ring body 1 as much as possible, and improves the stiffness of the outer ring body 1. The radial ribs 31, the axial ribs 32, and the circumferential ribs 33 in the housing are connected to each other, ensuring the stiffness of the housing. At the same time, the design of the ribs reduces the weight of the original structure, achieving the purpose of lightweight.

[0072] In some embodiments, the radial ribs 31 include:

[0073] The first connecting section 3101 is connected to the outer ring body 1 at one end.

[0074] The second connecting section 3102 is connected to the first connecting section 3101 at one end, and there is a smooth transition between the first connecting section 3101 and the second connecting section 3102. The other end of the second connecting section 3102 is connected to the inner ring body 2.

[0075] It should be noted that the first connecting section 3101 and the second connecting section 3102 mentioned here are not limited to any one of the radial rib plates 31, including the first radial rib plate 311, the second radial rib plate 312, and the third radial rib plate 313. They can all be designed in this way.

[0076] In this embodiment, the structure of the radial rib plate 31 is subdivided into two main parts: the first connecting section 3101 and the second connecting section 3102. This design allows the radial rib plate 31 to more effectively connect the outer ring body 1 and the inner ring body 2 while maintaining the continuity and strength of the structure.

[0077] One end of the first connecting section 3101 is directly connected to the outer ring body 1, providing a stable starting point for the radial rib plate 31. Then, one end of the second connecting section 3102 is connected to the other end of the first connecting section 3101. This design allows a smooth transition between the two parts, which helps to evenly distribute stress and reduce possible stress concentration points. The other end of the second connecting section 3102 is connected to the inner ring body 2, completing the connection from the outer ring body to the inner ring body.

[0078] This phased connection method not only enhances the structural integrity of the radial rib plate 31, but also allows better force transmission and dispersion, improving the stiffness and strength of the entire box. By designing such a segmented structure in the radial rib plate 31, it can be ensured that when subjected to external loads, forces can be more evenly distributed between the inner and outer ring bodies of the box, thereby improving the stability and durability of the box. This design is crucial for the performance of wind turbine gearboxes under high loads and variable operating conditions, helping to extend their service life and reduce maintenance costs.

[0079] The application also provides a wind turbine gearbox comprising the above-mentioned gearbox body for wind turbine gearboxes.

[0080] The wind turbine gearbox should have all the beneficial technical effects of the above-mentioned gearbox body for wind turbine gearboxes, which will not be repeated here.

[0081] The application also provides a wind turbine comprising the above-mentioned wind turbine gearbox.

[0082] The wind turbine should have all the beneficial technical effects of the above-mentioned wind turbine gearbox and gearbox body for wind turbine gearboxes, which will not be repeated here.

[0083] It should be noted that many components mentioned in the present application are general standard components or components known to those skilled in the art, the structure and principle of which can be known by the skilled person through technical manuals or through conventional experimental methods.

[0084] It should be noted that in the present specification, relational terms such as first and second are used solely to distinguish one entity from another entity, without necessarily requiring or implying any such actual relationship or order between such entities.

[0085] The above provides a detailed introduction to the box for a wind power gear box, the wind power gear box and the wind power generator provided by the present application. The principles and implementation manners of the present application are described by applying specific examples in the present text, and the above example description is only used to help understand the method of the present application and its core idea. It should be pointed out that for those skilled in the art, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A housing for a wind turbine gearbox, characterized in that The wind turbine gearbox housing comprises an outer ring body and an inner ring body, the inner ring body is located inside the outer ring body in the radial direction of the wind turbine gearbox housing, the inner ring body is spaced apart from the outer ring body, and the inner ring body and the outer ring body are connected by a web assembly; in the axial direction of the wind turbine gearbox housing, both sides of the outer ring body are used to connect two gear rings, and in the radial direction of the wind turbine gearbox housing, the inner side of the inner ring body is used to connect a bearing.

2. The wind turbine gearbox housing according to claim 1, characterized in that The web assembly comprises: Radial webs are arranged between the outer ring body and the inner ring body in the radial direction of the wind turbine gearbox housing, and the radial webs are used to provide radial support for the outer ring body and the inner ring body.

3. The wind turbine gearbox housing according to claim 2, characterized in that The number of radial webs is multiple groups, and multiple groups of radial webs are distributed in the axial direction of the wind turbine gearbox housing.

4. The wind turbine gearbox housing according to claim 3, characterized in that At least two radial webs meet in the direction extending from the outer ring body to the inner ring body.

5. The wind turbine gearbox housing of claim 3, wherein, The web assembly further comprises: Axial webs are arranged between any two radial webs in the axial direction of the wind turbine gearbox housing, and the axial webs are used to realize the correlation of multiple groups of radial webs in the axial direction to improve the stiffness.

6. The wind turbine gearbox housing of claim 5, wherein, The number of axial webs is multiple, and multiple axial webs are distributed in the radial direction of the wind turbine gearbox housing.

7. The wind turbine gearbox housing of claim 3, wherein, At least one group of radial webs is provided with multiple axial webs in the circumferential direction of the wind turbine gearbox housing; the web assembly further comprises: Circumferential webs are arranged between the radial webs in the circumferential direction of the wind turbine gearbox housing, and the circumferential webs are used to realize the correlation of multiple radial webs in the circumferential direction to improve the stiffness.

8. The wind turbine gearbox housing of claim 2, wherein, The radial web comprises: A first connecting section, a first end of which is connected to the outer ring body; A second connecting section, a first end of which is connected to a second end of the first connecting section, the second connecting section and the first connecting section are smoothly transitioned, and a second end of the second connecting section is connected to the inner ring body.

9. A wind turbine gearbox, characterized in that The wind turbine gearbox housing comprises any one of claims 1 to 8.

10. A wind turbine generator characterized by, The wind turbine gearbox comprises claim 9.

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