Rack and wind generating set

Abstract

The utility model relates to a rack and a wind generating set, the rack comprises a base and a bearing seat, the base comprises a base body and a supporting body, the supporting body is connected to the base body, the bearing seat is connected to the side, away from the base body, of the supporting body, and the bearing seat comprises a bearing seat body and a mounting flange arranged at one end of the bearing seat body; the mounting flange protrudes out of the bearing seat body in the radial direction, and a plurality of mounting connectors are arranged on the end face of the protruding area of the mounting flange and used for being connected with fan components of the wind generating set. A maintenance opening is formed in the supporting body, and the maintenance opening extends to the end face of the installation flange in the axial direction and is arranged to expose at least part of the installation connector. According to the rack and the wind generating set in the embodiment of the invention, the maintenance channel can be formed on the rack, and meanwhile, the rack can be more conveniently connected with the fan component of the wind generating set.

Description

Technical Field

[0001] The present application relates to the technical field of wind power generation, and in particular to a frame and a wind turbine generator set. Background Art

[0002] A wind turbine converts wind energy into electrical energy. The transmission assembly is the core component of the unit, responsible for the entire energy conversion process. As a key component supporting the transmission assembly, the frame plays a crucial role. The frame structure directly affects the performance and quality of the entire transmission assembly, and thus the lifespan of the entire wind turbine.

[0003] In existing wind turbine generator sets, the bearing seat is installed on the frame, the gearbox housing is installed with the bearing seat, and the main shaft is transmission-connected with the input end of the gearbox, making the installation and maintenance of existing wind turbine generator sets complicated, difficult and costly. Utility Model Content

[0004] The present application provides a rack and a wind turbine generator set, which can form a maintenance channel on the rack and facilitate the connection between the rack and the wind turbine components of the wind turbine generator set.

[0005] On the one hand, according to an embodiment of the present application, a frame is proposed, including: a base, including a base body and a support body, the support body being connected to the base body; a bearing seat, connected to the side of the support body facing away from the base body, the bearing seat including a bearing seat body and a mounting flange arranged at one end of the bearing seat body, the mounting flange protruding radially from the bearing seat body and having a plurality of mounting interfaces arranged on the end face of the protruding area thereof, the mounting interfaces being used to be connected to the wind turbine components of the wind turbine generator set; wherein a maintenance port is provided on the support body, the maintenance port extending axially to the end face of the mounting flange and being arranged to expose at least part of the mounting interface.

[0006] According to one aspect of an embodiment of the present application, the support body is arranged at least partially around the circumference of the base body, the support body, the base body and the bearing seat form an accommodating cavity, and the maintenance port is connected to the accommodating cavity.

[0007] According to one aspect of an embodiment of the present application, the support body includes an intermediate support wall connected to the radial sides of the bearing seat body, and the axial projection of the intermediate support wall on the mounting flange overlaps with the mounting interface; a maintenance port is provided on the intermediate support wall on at least one side, and the maintenance port passes through the intermediate support wall axially toward the end of the mounting flange, and the intermediate support wall exposes the mounting interface through the maintenance port and is connected to the mounting flange.

[0008] According to one aspect of an embodiment of the present application, the upper edge of the maintenance port extends to the junction of the intermediate support wall and the bearing seat body, and / or the lower edge of the maintenance port extends to the outer periphery of the end face of the mounting flange.

[0009] According to one aspect of an embodiment of the present application, the support body also includes a first support wall and a second support wall radially arranged on both sides of the bearing seat along the axial direction, the second support wall is connected to the mounting flange, and the first support wall and the second support wall are connected to the intermediate support wall.

[0010] According to one aspect of an embodiment of the present application, along the axial direction of the bearing seat, the size of the bearing seat is smaller than the size of the base body, wherein the second support wall includes a first wall portion and a second wall portion arranged to intersect; the first wall portion is connected to the mounting flange, the second wall portion extends along the axial direction of the bearing seat and is connected to the base body, and the intermediate support wall extends along the circumferential direction of the base body and is connected to the end faces of the first wall portion and the second wall portion.

[0011] According to one aspect of an embodiment of the present application, the base further includes a support plate, which is protrudingly provided on the support body. The support plate is located on a side of the maintenance port facing the base body and forms a bearing area.

[0012] According to one aspect of an embodiment of the present application, the rack further includes a first support rib, the first support rib is connected to the mounting flange and the support plate, and the first support rib is staggered with the maintenance port.

[0013] According to one aspect of an embodiment of the present application, the base further includes a second support rib, which is disposed on the support body and supported on a side of the support plate facing the base body.

[0014] According to one aspect of the embodiment of the present application, the width of the second supporting rib gradually increases in a direction away from the supporting plate.

[0015] According to one aspect of the embodiment of the present application, the bearing seat and the base are an integrated structure.

[0016] In the frame provided by the embodiment of the present application, the mounting flange of the bearing seat is in contact with the end face of the gear box, and the bearing seat is connected to the gear box by a connecting piece passing through the mounting interface on the bearing seat. Since the bearing seat needs to be connected to the base body through a support body, in order to avoid interference of the support body with the penetration of the connecting piece, a maintenance port is provided on the support body of the embodiment of the present application. The maintenance port extends axially to the end face of the mounting flange and is configured to expose at least part of the mounting interface, thereby forming a maintenance passage for the operator through the maintenance port while exposing the mounting interface through the maintenance port, so that the connecting piece can pass through the mounting interface on the bearing seat through the maintenance port, making it easier to connect the bearing seat and the gear box, and improving the connection strength between the bearing seat and the gear box to be suitable for higher working loads and improve the performance of the wind turbine generator set.

[0017] According to another aspect of the present application, the present application also provides the rack mentioned in any of the above aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0019] Figure 1 is a schematic structural diagram of a wind turbine generator set in some embodiments of the present application;

[0020] Figure 2 is a first structural schematic diagram of a rack in some embodiments of the present application;

[0021] Figure 3 is a second structural schematic diagram of a rack in some embodiments of the present application;

[0022] Figure 4 is a third structural schematic diagram of a rack in some embodiments of the present application;

[0023] Figure 5 It is a bottom view of the rack in some embodiments of the present application.

[0024] In the attached figure:

[0025] 100-wind turbine generator set; 110-tower; 120-nacelle; 130-frame; 140-impeller; 150-main shaft; 160-gearbox; 170-generator;

[0026] 1-base; 11-base body; 12-support body; 121-middle support wall; 122-first support wall; 123-second support wall; 1231-first wall portion; 1232-second wall portion; 13-support plate; 14-first support rib; 15-second support rib; 16-third support rib;

[0027] 2-bearing seat; 21-bearing seat body; 22-mounting flange; 221-mounting interface; 23-first bearing mounting portion; 24-second bearing mounting portion;

[0028] K-Maintenance port.

[0029] In the drawings, like reference numerals are used for like parts, but the drawings are not necessarily drawn to scale. DETAILED DESCRIPTION

[0030] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are set forth in order to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the well-known structures and technologies are not shown in order to avoid unnecessary ambiguity in the present application; and, for clarity, the sizes of some structures may be exaggerated. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0031] The directional words appearing in the following description are all directions shown in the figures, and do not limit the racks and wind turbines of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] See also Figure 1 , Figure 1 Schematic diagram of the structure of a wind turbine generator set 100 in some embodiments of the present application is shown. The embodiment of the present application provides a wind turbine generator set 100, comprising a tower 110, a nacelle 120 and a transmission assembly, wherein the nacelle 120 is disposed on top of the tower 110.

[0033] The transmission assembly includes a frame 130, an impeller 140, a main shaft 150, a gearbox 160, and a generator 170. The frame 130 is located within the nacelle 120 and includes a connected bearing seat and base. The base is connected to the tower 110 via a yaw assembly. The impeller 140 is located at one end of the bearing seat and includes a hub and multiple blades connected to the hub. The main shaft 150 is mounted on the bearing seat. The input end of the main shaft 150 is connected to the impeller 140, and the output end of the main shaft 150 is connected to the rotating shaft of the generator 170 via the gearbox 160. When wind force acts on the blades, the blades drive the entire impeller 140 to rotate. The blades are directly or indirectly connected to the generator 170 via the main shaft, causing the rotating shaft of the generator 170 to rotate, thereby converting wind energy into electrical energy.

[0034] The embodiment of the present application provides a new frame 130, which can be used in the wind turbine generator set 100 of the above embodiments, especially the large-megawatt wind turbine generator set 100 and serve as a component of the wind turbine generator set 100. Of course, it can also be produced or sold separately as an independent component.

[0035] Please also refer to Figures 1 to 3 , Figure 2 1 shows a first structural diagram of the rack 130 in some embodiments of the present application. Figure 3 A second structural schematic diagram of the rack 130 in some embodiments of the present application is shown.

[0036] The frame 130 provided in the embodiment of the present application includes a base 1 and a bearing seat 2. The base 1 includes a base body 11 and a support body 12. The support body 12 is connected to the base body 11, and the bearing seat 2 is connected to the side of the support body 12 facing away from the base body 11. The bearing seat 2 includes a bearing seat body 21 and a mounting flange 22 provided at one end of the bearing seat body 21. The mounting flange 22 protrudes radially from the bearing seat body 21 and has a plurality of mounting interfaces 221 provided on the end surface of the protruding area. The mounting interfaces 221 are used to connect to other wind turbine components (such as a gearbox, generator, etc.) of the wind turbine generator set 100. A maintenance port K is provided on the support body 12. The maintenance port K extends axially to the end surface of the mounting flange 22 and is configured to expose at least a portion of the mounting interfaces 221.

[0037] In the frame 130 of the embodiment of the present application, the mounting flange 22 of the bearing seat 2 can be connected to the end face of the gearbox 160, and the bearing seat 2 is connected to the gearbox 160 by a connecting member passing through a mounting interface 221 on the bearing seat 2. Since the bearing seat 2 needs to be connected to the base body 11 through the support body 12, in order to avoid interference between the support body 12 and the insertion of the connecting member, a maintenance port K is provided on the support body 12 of the embodiment of the present application. The maintenance port K extends axially to the end face of the mounting flange 22 and is configured to expose at least a portion of the mounting interface 221. In other words, the maintenance port K projects along the axial direction to expose at least a portion of the mounting interface. This allows the maintenance port K to form a maintenance passage for operators while also exposing the mounting interface 221 through the maintenance port K, so that the connecting member can be assembled to the mounting interface 221 on the bearing seat 2 through the maintenance port K. This further facilitates the connection between the bearing seat 2 and the gearbox 160 and improves the connection strength between the bearing seat 2 and the gearbox 160, thereby adapting to higher workloads and improving the performance of the wind turbine generator 100. Of course, the gearbox in the embodiment of this article is only used to illustrate the installation connection between the components of the wind turbine generator set and the bearing seat 2. When other components such as the generator are installed on the frame, the above-mentioned maintenance port K is also applicable to leave installation space for the installation interface 221.

[0038] Optionally, the bearing seat body 21 has a cylindrical structure, and a first bearing mounting portion 23 and a second bearing mounting portion 24 are provided in the bearing seat body 21 at intervals along the axial direction. The first bearing mounting portion 23 is used to mount the first bearing, and the second bearing mounting portion 24 is used to mount the second bearing. When the outer diameter of the first bearing is larger than the outer diameter of the second bearing, the bearing seat body 21 can be configured as a tapered cylindrical structure. When the outer diameters of the first bearing and the second bearing are similar, the bearing seat body 21 can be configured as a straight cylindrical structure.

[0039] The mounting flange 22 is positioned corresponding to the second bearing mounting portion 24. Because the second bearing mounting portion 24 of the bearing seat body 21 is positioned away from the impeller 140, the force acting on the bearing seat body 21 at the second bearing mounting portion 24 is less than that acting on the first bearing mounting portion 23. Therefore, by extending the maintenance port K axially to the end surface of the mounting flange 22, not only does it reduce the difficulty of connecting the bearing seat 2 to the gearbox 160, it also allows the center of the maintenance port K to be positioned closer to one side of the second bearing mounting portion 24. In other words, the maintenance port K is positioned on the side of the bearing seat body 21 that is less subject to force. This reduces the impact of the maintenance port K on the bearing seat 2's load-bearing capacity and improves the reliability and service life of the bearing seat 2.

[0040] It is understood that the maintenance opening K exposing at least a portion of the mounting interface 221 means that the maintenance opening K can expose at least a portion of the multiple mounting interfaces 221, or can expose all of the mounting interfaces 221. The specific position of the maintenance opening K can be adjusted based on the location of the mounting interface 221 on the mounting flange 22. In addition, the axial dimension of the maintenance opening K can be adjusted based on the operator's access requirements and the structure of the connector, thereby ensuring that the connector can be installed and removed without interfering with other components while ensuring operator access.

[0041] Optionally, the connecting member may be a bolt, and the mounting interface 221 may be a bolt hole. Alternatively, the connecting member may be a pin, and the mounting interface may be a pin hole.

[0042] Optionally, multiple mounting interfaces 221 may be spaced apart along the circumference of the mounting flange 22. The multiple mounting interfaces 221 may be located on the same pitch circle of the mounting flange 22, or on different pitch circles. By spacing the mounting interfaces 221 along the circumference of the mounting flange 22, the bearing seat 2 and the gearbox 160 can be connected at multiple circumferential joints, thereby improving connection reliability.

[0043] See also Figures 1 to 4 , Figure 4A third schematic structural diagram of the rack 130 provided in some embodiments of the present application is shown. In some optional embodiments, the support body 12 is disposed at least partially around the circumference of the base body 11. The support body 12, the base body 11, and the bearing seat 2 form a receiving cavity, and the maintenance port K is connected to the receiving cavity.

[0044] By disposing the support body 12 at least partially around the circumference of the base body 11 and connecting the bearing seat 2 to the end of the support body 12 facing away from the base body 11, the bearing seat 2 can be reliably supported. The bearing seat body 21 includes a top and a bottom arranged in a radial direction. The support body 12, the base body 11, and the bottom of the bearing seat body 21 enclose a receiving cavity.

[0045] With the support body 12 as the dividing line, some of the multiple mounting interfaces 221 are located outside the accommodating cavity, while others are located inside. The mounting interfaces 221 located outside the accommodating cavity can be directly connected to the gearbox 160 via connectors. By connecting the maintenance port K to the accommodating cavity, operators can enter the mounting cavity between the bottom of the bearing housing body 21 and the base body 11 through the maintenance port K. They can then connect the mounting interfaces 221 located inside the accommodating cavity with connectors to connect to the gearbox 160.

[0046] It can be understood that by adopting the above-mentioned method, it is easier to support the bearing seat 2 through the support member while effectively avoiding the influence of the support body 12 on the connection between the bearing seat 2 and the gear box 160, so that the bearing seat 2 can be connected to the gear box 160 through multiple mounting interfaces 221 arranged along the circumference, the connection points are more evenly distributed, and the connection strength between the bearing seat 2 and the gear box 160 can be improved.

[0047] See also Figures 1 to 5 , Figure 5 A bottom view of a frame 130 provided in some embodiments of the present application is shown, wherein the support body 12 includes an intermediate support wall 121 connected to both radial sides of the bearing seat body 21, wherein the axial projection of the intermediate support wall 121 on the mounting flange 22 overlaps with the mounting interface 221, and a maintenance port K is provided on at least one side of the intermediate support wall 121, wherein the maintenance port K axially penetrates the intermediate support wall 121 toward the end of the mounting flange 22, and the intermediate support wall 121 exposes the mounting interface 221 through the maintenance port K and is connected to the mounting flange 22.

[0048] Since some of the multiple mounting interfaces 221 are located at the boundary position between the inside and outside of the accommodating cavity, that is, the projection position of the intermediate support wall 121 on the mounting flange 22 along the axial direction, the maintenance port K is correspondingly set at the end of the intermediate support wall 121 facing the mounting flange 22. The mounting interface 221 located at the boundary position can be exposed through the maintenance port K, thereby eliminating the obstruction of the support body 12 to the various mounting interfaces 221 arranged along the circumferential direction, so as to facilitate the connection between the bearing seat 2 and the gear box 160.

[0049] As an optional embodiment, maintenance openings K are provided on both sides of the intermediate support walls 121 to facilitate operator access to the accommodating cavity from both sides, reducing installation difficulty and facilitating maintenance. Optionally, the maintenance openings K on the intermediate support walls 121 on both sides are symmetrically arranged relative to the bearing seat 2, thereby ensuring more stable force transmission to the frame 130.

[0050] Optionally, the wall thickness of the edge portion of the maintenance opening K is greater than the wall thickness of the portion of the intermediate support wall 121 adjacent to the maintenance opening K. In other words, the intermediate support wall 121 is provided with a locally thickened wall portion at the edge of the opening corresponding to the maintenance opening K. Since the opening K is provided in the intermediate support wall 121, the edge of the opening K is subject to a certain amount of stress. Therefore, providing a locally thickened portion at the edge of the intermediate support wall 121 corresponding to the opening K can eliminate high stress and alleviate the stress concentration caused by the maintenance opening K. Furthermore, the increased thickness also increases the strength and reliability of the structure, making it safer for operators to pass through and more stable to stand.

[0051] See also Figures 1 to 5 In some optional embodiments, the upper edge of the maintenance port K extends to the junction of the intermediate support wall 121 and the bearing seat body 21, and / or the lower edge of the maintenance port K extends to the outer periphery of the end face of the mounting flange 22.

[0052] The upper edge of the maintenance port K refers to the edge of the side of the maintenance port K away from the base body 11, and the lower edge of the maintenance port K refers to the edge of the side of the maintenance port K toward the base body 11. By extending the upper edge of the maintenance port K to the junction of the intermediate support wall 121 and the bearing seat body 21, and / or extending the lower edge of the maintenance port K to the outer peripheral edge of the end face of the mounting flange 22, the opening area of ​​the maintenance port K can be increased to expose the end face of the mounting flange 22, thereby making it easier to pass the connecting piece through the connecting hole on the mounting flange 22 and improving the connection strength.

[0053] In some optional embodiments, the support body 12 also includes a first support wall 122 and a second support wall 123 radially arranged on both sides of the bearing seat 2 along the axial direction, the second support wall 123 is connected to the mounting flange 22, and the first support wall 122 and the second support wall 123 are connected to the intermediate support wall 121.

[0054] By arranging the first support wall 122 and the second support wall 123, the bearing seat 2 can be supported at both ends of the axial direction by the first support wall 122 and the second support wall 123, and by connecting the first support wall 122 and the second support wall 123 through the intermediate support wall 121, an annular structure can be formed by the first support wall 122, the second support wall 123 and the intermediate support walls 121 on both sides, so as to reliably support the bearing seat 2 in the circumferential direction and guide the force flow from the bearing seat 2 to the base body 11.

[0055] Optionally, along the axial direction of the bearing seat 2, the size of the bearing seat 2 is smaller than the size of the base body 11. The second support wall 123 includes a first wall portion 1231 and a second wall portion 1232 that are intersectingly arranged. The first wall portion 1231 is connected to the mounting flange 22, and the second wall portion 1232 extends along the axial direction of the bearing seat 2 and is connected to the base body 11. The intermediate support wall 121 extends along the circumferential direction of the base body 11 and is connected to the end surfaces of the first wall portion 1231 and the second wall portion 1232.

[0056] By making the bearing seat 2 smaller than the base body 11, the axial length of the bearing seat 2 can be shortened, resulting in a more compact structural design. When the bearing seat 2 is smaller than the base body 11, the second support wall 123 can be configured as a first wall portion 1231 and a second wall portion 1232 that intersect. This can achieve a lightweight design for the frame 130 while maintaining its structural strength and enabling connection between the frame 130 and the gearbox 160.

[0057] See also Figures 1 to 5 In some optional embodiments, the base 1 further includes a support plate 13 , which is protruding from the support body 12 . The support plate 13 is located on a side of the maintenance port K facing the base body 11 and forms a bearing area.

[0058] By providing a support plate 13 on the support body 12, a load-bearing area can be formed by the support plate 13, enabling operators to stand and operate, and place tools and spare parts, so that operators can connect the bearing seat 2 and the gearbox 160 on one side of the bearing seat 2. In addition, the support plate 13 can also make it easier for operators to enter the accommodating cavity and safely and stably step onto the nacelle 120 platform when leaving the accommodating cavity, reducing the complex connection of structural components.

[0059] Optionally, the support plate 13 can be set to a special-shaped structure, and the support plate 13 can be smoothly connected to the support body 12 to avoid stress concentration at the connection position between the support plate 13 and the support body 12, reduce the risk of deformation damage to the frame 130, and improve the reliability of the support plate 13.

[0060] In some optional embodiments, the rack 130 further includes a first supporting rib 14 , the first supporting rib 14 connecting the mounting flange 22 and the supporting plate 13 , and the first supporting rib 14 and the maintenance port K are staggered.

[0061] By providing the first support ribs 14 on the base 1 and connecting the mounting flange 22 and the support plate 13 via the first support ribs 14, the structural strength of the frame 130 at the maintenance port K can be improved. This allows the load of the second bearing mounting portion 24 to be transmitted to the support plate 13 via the first support ribs 14, and then from the support body 12 to the base body 11, achieving reliable power flow transmission. Furthermore, the connection between the ends of the support plate 13 and the first support ribs 14 also improves the load-bearing capacity of the support plate 13, thereby increasing the reliability and service life of the frame 130.

[0062] Optionally, the first supporting rib 14 and the first wall portion 1231 may be provided as an integral structure, thereby simplifying the structure of the frame 130 and making it easier to dispose the first supporting rib 14 .

[0063] Optionally, the thickness of the first supporting rib 14 may be greater than the thickness of the first wall portion 1231 , so as to increase the rigidity of the structure and alleviate the stress concentration problem at the maintenance hole.

[0064] In some optional embodiments, the base 1 further includes a second supporting rib 15 , which is disposed on the supporting body 12 and supported on a side of the supporting plate 13 facing the base body 11 .

[0065] By arranging a second supporting rib 15 on the base 1 and supporting the second supporting rib 15 on the side of the pallet 13 facing the base body 11, the strength of the support body 12 in the area on the side of the pallet 13 facing the base body 11 can be enhanced, so that the load on the pallet 13 can be transferred to the base body 11 through the second supporting rib 15, thereby improving the load-bearing capacity of the pallet 13, reducing the risk of deformation and damage to the frame 130, and improving the reliability of the pallet 13.

[0066] Optionally, the width of the second support rib 15 gradually increases in the direction away from the support plate 13, so as to smoothly transition with a variable cross-section, thereby distributing the load transferred to the second support rib 15 to the base body 11, avoiding stress concentration, and improving the stability of the frame 130.

[0067] See also Figures 1 to 5 In some optional embodiments, the base 1 also includes a third support rib 16, which is arranged on the inner wall surface of the support body 12 facing the accommodating cavity, and the third support rib 16 extends from the first wall portion 1231 to the middle support wall 121 on at least one side.

[0068] By making the base 1 also include a third support rib 16, the position of the first wall portion 1231 can be strengthened to improve the stability and strength of the second support wall 123, and the force applied to the first wall portion 1231 can be transmitted to the middle support wall 121 through the third support rib 16, thereby dispersing the force applied to the first wall portion 1231.

[0069] In some optional embodiments, the portion of the third support rib 16 located on the middle support wall 121 extends toward the base body 11, and the width of the third support rib 16 gradually increases along the direction toward the base body 11, that is, the end of the third support rib 16 extending toward the side where the base body 11 is located can adopt a variable cross-section to smoothly transition, disperse the force, avoid stress concentration, and improve the stability of the frame 130.

[0070] In some optional embodiments, the bearing seat 2 and the base 1 are an integrated structure, that is, the base body 11 and the bearing seat 2 are integrated into one through the support body 12, which reduces the total weight of the frame 130 and reduces the processing cost and assembly cost of the frame 130. Furthermore, the integrated structure eliminates some processing errors and assembly errors, improves the processing accuracy and installation accuracy of the wind turbine set, and enhances the stability of the unit operation.

[0071] The frame 130 in the embodiment of the present application has a maintenance port K on its support body 12, which extends axially to the end face of the mounting flange 22 and is configured to expose at least part of the mounting interface 221. This allows the maintenance port K to form a maintenance passage for the operator while exposing the mounting interface 221 through the maintenance port K, so that the connecting piece can pass through the maintenance port K to pass through the mounting interface 221 on the bearing seat 2, making it easier to connect the bearing seat 2 and the gear box 160, and improving the connection strength between the bearing seat 2 and the gear box 160 to be suitable for higher working loads, thereby improving the performance of the wind turbine generator set 100.

[0072] The wind turbine generator set 100 provided in the embodiment of the present application includes the frame 130 of any of the above embodiments. Therefore, the wind turbine generator set 100 in the embodiment of the present application has advantages such as good load-bearing performance, stable connection, and light structure, and is more convenient for promotion and application.

[0073] The embodiment of the present application also provides a wind farm using the wind turbine generator set described in the above embodiment. Since it includes the above wind turbine generator set, the wind farm of the present application has higher economic efficiency.

[0074] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A frame for a wind turbine generator set, characterized in that: include: A base (1) comprises a base body (11) and a support body (12), wherein the support body (12) is connected to the base body (11); A bearing seat (2) is connected to a side of the support body (12) facing away from the base body (11), the bearing seat (2) comprising a bearing seat body (21) and a mounting flange (22) provided at one end of the bearing seat body (21), the mounting flange (22) protruding radially from the bearing seat body (21) and having a plurality of mounting interfaces (221) provided on an end surface of the protruding region thereof, the mounting interfaces (221) being used to be connected to a fan component of the wind turbine generator set (100); A maintenance port (K) is provided on the support body (12), and the maintenance port (K) extends axially to the end surface of the mounting flange (22) and is configured to expose at least a portion of the mounting interface (221).

2. The rack according to claim 1, wherein: The support body (12) is at least partially arranged around the circumference of the base body (11), and the support body (12), the base body (11) and the bearing seat (2) form an accommodating cavity, and the maintenance port (K) is connected to the accommodating cavity.

3. The rack according to claim 1, wherein: The support body (12) comprises an intermediate support wall (121) connected to both radial sides of the bearing seat body (21), and a projection of the intermediate support wall (121) on the mounting flange (22) along the axial direction overlaps with the mounting interface (221); The intermediate support wall (121) on at least one side is provided with the maintenance port (K), which axially penetrates the intermediate support wall (121) toward the end of the mounting flange (22), and the intermediate support wall (121) exposes the mounting interface (221) through the maintenance port (K) and is connected to the mounting flange (22).

4. The rack according to claim 3, wherein: The upper edge of the maintenance opening (K) extends to the junction of the intermediate support wall (121) and the bearing seat body (21), and / or the lower edge of the maintenance opening (K) extends to the outer periphery of the end face of the mounting flange (22).

5. The rack according to claim 3, wherein: The support body (12) further comprises a first support wall (122) and a second support wall (123) radially arranged on both sides of the bearing seat (2) along the axial direction, the second support wall (123) being connected to the mounting flange (22), and the first support wall (122) and the second support wall (123) being connected to the intermediate support wall (121).

6. The rack according to claim 5, wherein: Along the axial direction of the bearing seat (2), the size of the bearing seat (2) is smaller than the size of the base body (11), wherein the second support wall (123) includes a first wall portion (1231) and a second wall portion (1232) arranged to intersect with each other; The first wall portion (1231) is connected to the mounting flange (22), the second wall portion (1232) extends along the axial direction of the bearing seat (2) and is connected to the base body (11), and the intermediate support wall (121) extends along the circumferential direction of the base body (11) and is connected to the end faces of the first wall portion (1231) and the second wall portion (1232).

7. The rack according to any one of claims 1 to 6, characterized in that: The base (1) further comprises a support plate (13), the support plate (13) being protrudingly arranged on the support body (12), the support plate (13) being located on a side of the maintenance port (K) facing the base body (11) and forming a bearing area.

8. The rack according to claim 7, wherein: The frame (130) further includes a first supporting rib (14), the first supporting rib (14) connecting the mounting flange (22) and the supporting plate (13), and the first supporting rib (14) and the maintenance port (K) are staggered.

9. The rack according to claim 7, wherein: The base (1) further comprises a second supporting rib (15), which is arranged on the supporting body (12) and supported on a side of the supporting plate (13) facing the base body (11).

10. The rack according to claim 9, wherein: The width of the second supporting rib (15) gradually increases in a direction away from the supporting plate (13).

11. The rack according to claim 1, wherein: The bearing seat (2) and the base (1) are an integrated structure.

12. A wind turbine generator set, characterized in that: include: The rack (130) according to any one of claims 1 to 11.

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