Device mounting platform for a wind turbine and wind turbine

Abstract

The utility model discloses a kind of equipment mounting platform and wind-driven generator of wind-driven generator, it is related to wind-driven generator technical field, wherein, equipment mounting platform includes base frame structure and platform structure;Base frame structure includes annular support and multiple supporting legs, multiple supporting legs are interval arranged along the circumferential direction of annular support, and annular support is supported at the top of multiple supporting legs, the bottom of each supporting leg is supported at the bottom of tower drum, and annular support encloses a circular accommodating cavity;Platform structure includes circular platform and rotating drive assembly, circular platform is used for the installation of the electric control equipment of wind-driven generator, circular platform is set at accommodating cavity, and can be rotatably installed in annular support, rotating drive assembly is installed at the bottom of tower drum and is connected with the bottom of circular platform, and rotating drive assembly is used to drive circular platform to rotate around its axial relative annular support.The equipment mounting platform provided by the utility model can be easily and accurately installed in tower drum, is simple to install, and has higher efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine technology, and in particular to a wind turbine equipment installation platform and a wind turbine. Background Technology

[0002] During the construction of wind turbines, an equipment installation platform needs to be erected inside the wind turbine tower to house the wind turbine's electrical control equipment. Traditional equipment installation platforms are mostly fixed structures, requiring precise installation inside the tower. The electrical control equipment is then installed on the platform to meet the needs of subsequent equipment use. Furthermore, once installed, the platform's position cannot be adjusted. If an error occurs during installation, the platform must be dismantled and reinstalled, making the process difficult and inefficient. Utility Model Content

[0003] The main purpose of this utility model is to propose a wind turbine equipment installation platform, which aims to solve the technical problem that the equipment installation platform is difficult to install accurately inside the tower, resulting in difficult installation and low efficiency.

[0004] To achieve the above objectives, this utility model proposes a wind turbine installation platform, which is disposed inside the tower of the wind turbine. The installation platform includes:

[0005] The base frame structure includes an annular support and multiple legs. The multiple legs are spaced apart circumferentially along the annular support, and the annular support is supported on the top of the multiple legs. The bottom of each leg is supported on the bottom of the tower. The annular support forms a circular accommodating cavity.

[0006] The platform structure includes a circular platform and a rotation drive assembly. The circular platform is used for the installation of the electrical control equipment of the wind turbine. The circular platform is disposed in the accommodating cavity and rotatably mounted on the annular support. The rotation drive assembly is installed at the bottom of the tower and connected to the bottom of the circular platform. The rotation drive assembly is used to drive the circular platform to rotate relative to the annular support about its axial direction.

[0007] In one embodiment, the annular support has an annular groove extending circumferentially along the inner side of the receiving cavity. The annular groove is recessed outward from the cavity wall of the receiving cavity. The groove opening is a first groove opening, which is disposed inward. The circular platform is disposed in the receiving cavity. A first annular step extending circumferentially and protruding outward is formed on the outer edge of the circular platform. The first annular step extends into the annular groove and slides in cooperation with the annular groove.

[0008] In one embodiment, the first annular step is disposed near the bottom of the circular platform, and the top of the circular platform is formed with a second annular step that extends circumferentially and protrudes outward, the second annular step being supported on the top of the annular bracket and slidingly engaging with the top of the annular bracket.

[0009] In one embodiment, the annular groove includes a top wall, a bottom wall, and a side wall. The side wall is disposed opposite to the first groove opening. The bottom wall is provided with a rolling assembly. The first annular step is supported by the rolling assembly and rolls in cooperation with the rolling assembly.

[0010] In one embodiment, the rolling assembly includes a plurality of rollers, which are spaced apart circumferentially along the annular groove. The bottom wall of the groove is recessed downward to form an upward-facing mounting groove corresponding to the position of each roller. The rollers are rotatably mounted on the groove wall of the mounting groove via a rotating shaft. The top of the rollers extends upward beyond the opening of the mounting groove and rolls in cooperation with the first annular step.

[0011] In one embodiment, the circular platform is further provided with a locking assembly for locking or unlocking the circular platform to the annular support.

[0012] In one embodiment, the locking assembly includes a locking pin, a locking hole is formed on the second annular step, the locking hole extends vertically through the second annular step, and a plurality of locking grooves are formed at intervals along the circumference of the annular bracket at the top, the opening of the locking groove is a second groove, and each second groove is arranged facing upwards. The locking hole can rotate with the circular platform to align with any of the second grooves, so that the locking hole and the aligned locking groove communicate to form a locking channel; the locking pin can be inserted into the locking channel or pulled out from the locking channel to lock or unlock the circular platform to the annular bracket.

[0013] In one embodiment, each of the legs can extend and retract vertically to drive the annular support to rise and fall. The rotation drive assembly includes a lifting drive seat and a rotation drive component. The rotation drive component is mounted on the lifting drive seat, which is mounted on the bottom of the tower. The lifting drive seat can drive the rotation drive component to rise and fall vertically. The output shaft of the rotation drive component is detachably connected to the bottom of the circular platform via a rotating shaft.

[0014] In one embodiment, the bottom of the circular platform is recessed upward to form a mounting cavity, and a platform frame is disposed in the mounting cavity. The platform frame is connected to the circular platform, and the output shaft of the rotary drive is detachably connected to the platform frame through a rotating shaft.

[0015] This utility model also proposes a wind turbine generator, which includes a tower and the aforementioned equipment installation platform, with the equipment installation platform located inside the tower of the wind turbine generator.

[0016] The technical solution of this utility model involves first customizing a ring-shaped bracket of appropriate size according to the inner diameter of the wind turbine tower to ensure a tight fit against the inner wall of the tower. Then, multiple support legs are evenly distributed around the circumference of the ring-shaped bracket and fixedly installed at certain intervals. The bottom ends of the support legs are firmly supported to the bottom of the tower through welding or other reliable fixing methods, allowing the entire base frame structure to be stably built inside the tower, forming a circular cavity that provides basic support space for the subsequent installation of electrical control equipment and platform structure. The circular platform is then rotatably placed within the cavity of the base frame structure. Simultaneously, a rotation drive assembly, such as a motor drive device or other transmission mechanism, is installed at the bottom of the tower, and the output end of the rotation drive assembly is firmly connected to the bottom of the circular platform. When the equipment installation platform needs to be adjusted, the rotation drive assembly is activated, driving the circular platform to rotate within the cavity to the designated position, thereby achieving precise adjustment of the equipment installation platform's position. Compared to traditional fixed equipment installation platforms, the equipment installation platform provided by this utility model features a circular platform that can rotate within the accommodating cavity and be adjusted by a rotation drive assembly. This allows for flexible rotation to the optimal position according to the actual installation needs of the wind turbine's electrical control equipment, effectively solving the problem of traditional platforms being difficult to accurately install inside the tower and significantly improving the accuracy of the equipment installation platform. During the installation of the electrical control equipment inside the wind turbine tower, if a deviation in the platform's position is found, there is no need to completely dismantle and reinstall it as in traditional methods. The position can be quickly corrected simply by adjusting the circular platform's position using the rotation drive assembly, greatly saving installation time, effectively reducing installation costs, and significantly improving the overall efficiency of wind turbine equipment installation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a structural embodiment of the equipment installation platform for the wind turbine provided by this utility model;

[0019] Figure 2A schematic diagram of the base frame structure in one embodiment of the equipment installation platform for the wind turbine provided by this utility model;

[0020] Figure 3 A schematic diagram of the platform structure in one embodiment of the equipment installation platform for the wind turbine provided by this utility model.

[0021] Explanation of icon numbers:

[0022] 100. Equipment installation platform; 10. Base frame structure; 11. Annular support; 111. Annular groove; 1111. Groove bottom wall; 1112. First groove opening; 12. Support leg; 13. Receiving cavity; 14. Rolling assembly; 141. Roller; 15. Mounting groove; 151. Second groove opening; 16. Locking groove; 20. Platform structure; 21. Circular platform; 211. First annular step; 212. Second annular step; 2121. Locking hole; 213. Mounting cavity; 214. Platform frame; 22. Rotation drive assembly; 221. Lifting drive seat; 222. Rotation drive component.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] This utility model proposes a wind turbine generator equipment installation platform 100.

[0028] Please see Figures 1 to 3 In one embodiment of this utility model, the equipment installation platform 100 of the wind turbine is disposed inside the tower of the wind turbine. The equipment installation platform 100 includes a base frame structure 10 and a platform structure 20. The base frame structure 10 includes an annular support 11 and multiple legs 12. The multiple legs 12 are spaced apart along the circumference of the annular support 11, and the annular support 11 is supported on the top of the multiple legs 12. The bottom end of each leg 12 is supported on the bottom of the tower. The annular support 11 forms a circular receiving cavity 13. The platform structure 20 includes a circular platform 21 and a rotation drive assembly 22. The circular platform 21 is used for the installation of the electrical control equipment of the wind turbine. The circular platform 21 is disposed at the receiving cavity 13 and rotatably mounted on the annular support 11. The rotation drive assembly 22 is mounted on the bottom of the tower and connected to the bottom of the circular platform 21. The rotation drive assembly 22 is used to drive the circular platform 21 to rotate relative to the annular support 11 around its axial direction.

[0029] The technical solution of this utility model involves first customizing a ring-shaped bracket 11 of appropriate size according to the inner diameter of the wind turbine tower to ensure a tight fit against the inner wall of the tower. Then, multiple support legs 12 are evenly distributed around the circumference of the ring-shaped bracket 11 and fixedly installed at certain intervals. The bottom ends of the support legs 12 are firmly supported to the bottom of the tower by welding or other reliable fixing methods, allowing the entire base frame structure 10 to be stably built inside the tower, forming a circular accommodating cavity 13, providing basic support space for the subsequent installation of electrical control equipment and platform structure 20. The circular platform 21 is then rotatably placed within the accommodating cavity 13 of the base frame structure 10. Simultaneously, a rotation drive assembly 22, such as a motor drive device or other transmission mechanism, is installed at the bottom of the tower, and the output end of the rotation drive assembly 22 is firmly connected to the bottom of the circular platform 21. When the equipment installation platform 100 needs to be repositioned, the rotation drive assembly 22 is activated to drive the circular platform 21 to rotate within the accommodating cavity 13, thereby rotating the circular platform 21 to the designated position and achieving precise adjustment of the equipment installation platform 100's position. Compared with the traditional fixed equipment installation platform 100, the circular platform 21 of this equipment installation platform 100 can rotate within the accommodating cavity 13 and be adjusted by the rotation drive assembly 22. It can flexibly rotate to the optimal position according to the actual needs of wind turbine electrical control equipment installation, effectively solving the problem of traditional platforms being difficult to accurately install inside the tower, and significantly improving the installation accuracy of the equipment installation platform 100. During the installation of electrical control equipment inside the wind turbine tower, if a deviation in the position of the equipment installation platform 100 is found, it is not necessary to completely dismantle and reinstall it as in the traditional method. The position of the circular platform 21 can be quickly corrected simply by adjusting the position of the rotation drive assembly 22, greatly saving installation time, effectively reducing installation costs, and significantly improving the overall efficiency of wind turbine equipment installation.

[0030] In one embodiment of the present invention, an annular support 11 has an annular groove 111 extending circumferentially along the inner side of the receiving cavity 13. The annular groove 111 is recessed outward from the cavity wall of the receiving cavity 13. The opening of the annular groove 111 is a first groove opening 1112, which is disposed inward. A circular platform 21 is disposed in the receiving cavity 13. A first annular step 211 extending circumferentially and protruding outward is formed on the outer edge of the circular platform 21. The first annular step 211 extends into the annular groove 111 and slides with the annular groove 111.

[0031] Specifically, such as Figure 1 and Figure 2As shown, a first annular step 211 is machined along the outer edge of the circular platform 21. This first annular step 211 extends circumferentially along the circular platform 21 and protrudes outward to a certain height, its shape matching the annular groove 111. When the circular platform 21 is placed in the receiving cavity 13, the first annular step 211 is accurately inserted into the annular groove 111, and the two are connected by a sliding fit. Under the action of the rotation drive assembly 22, the circular platform 21 can rotate smoothly along the annular groove 111, while the annular groove 111 provides a certain limiting and supporting function for the circular platform 21. Through the sliding fit between the annular groove 111 and the first annular step 211, a clear and stable rotation trajectory is provided for the circular platform 21, avoiding any offset or shaking of the circular platform 21 during installation and adjustment. This ensures that the circular platform 21 can be more accurately positioned and installed in the predetermined position within the tower, thereby improving the installation accuracy of the entire equipment installation platform 100 and facilitating the accurate installation of subsequent electrical control equipment. Furthermore, the cooperation between the annular groove 111 and the first annular step 211 not only serves as a guide but also acts as a radial limit for the circular platform 21, preventing excessive radial displacement of the circular platform 21 when it rotates or carries electrical control equipment. This enhances the overall structural stability of the equipment installation platform 100, improves the safety and reliability of the electrical control equipment operation, and extends the service life of the equipment.

[0032] In one embodiment of the present invention, a first annular step 211 is disposed near the bottom of a circular platform 21, and a second annular step 212 is formed on the top of the circular platform 21, extending circumferentially and protruding outward. The second annular step 212 is supported on the top of an annular bracket 11 and slides in cooperation with the top of the annular bracket 11.

[0033] Specifically, such as Figure 3As shown, a second annular step 212 is machined at the top of the circular platform 21, corresponding to its circumferential edge. This second annular step 212 also protrudes outward to a certain height, and its shape is adapted to the top outer edge of the annular support 11. When the circular platform 21 is placed in the receiving cavity 13, and the first annular step 211 is properly engaged with the annular groove 111, the second annular step 212 naturally overlaps the top of the annular support 11, forming a sliding engagement relationship between the two. This allows the second annular step 212 at the top of the circular platform 21 to slide smoothly along the top of the annular support 11 during rotation, further enhancing the stability of the circular platform 21 during rotation. The sliding fit between the second annular step 212 and the top of the annular support 11 ensures that when the circular platform 21 bears the weight of the electrical control equipment and its own rotation, it is supported and limited not only by the first annular step 211 and the annular groove 111 at the bottom, but also by the second annular step 212 and the top of the annular support 11. This double support and limiting fit can more effectively prevent the circular platform 21 from shifting in the axial and radial directions, greatly enhancing the overall structural stability of the equipment installation platform 100, providing a more stable installation foundation for the wind turbine electrical control equipment, and reducing the risk of equipment failure due to platform shaking during operation.

[0034] In one embodiment of the present invention, the annular groove 111 includes a top wall, a bottom wall 1111, and a side wall. The side wall is disposed opposite to the first groove opening 1112. The bottom wall 1111 is provided with a rolling component 14. The first annular step 211 is supported on the rolling component 14 and rolls in cooperation with the rolling component 14.

[0035] Furthermore, such as Figure 2 As shown, the rolling component 14 transforms the sliding friction between the first annular step 211 and the annular groove 111 into rolling friction, greatly reducing frictional resistance. This makes the circular platform 21 rotate more easily and freely, reduces the required driving force, and improves the position adjustment efficiency of the equipment mounting platform 100.

[0036] In one embodiment of the present invention, the rolling assembly 14 includes a plurality of rollers 141, which are spaced apart circumferentially along the annular groove 111. The bottom wall 1111 of the groove is recessed downward to form an upward-facing mounting groove 15 corresponding to the position of each roller 141. The rollers 141 are rotatably mounted on the groove wall of the mounting groove 15 via a rotating shaft. The top of the rollers 141 extends upward out of the opening of the mounting groove 15 and rolls in cooperation with the first annular step 211.

[0037] Furthermore, such as Figure 2As shown, by using multiple rollers 141 spaced apart circumferentially along the annular groove 111, the first annular step 211 can be evenly supported by multiple support points during rotation. The rolling cooperation between the rollers 141 and the first annular step 211 is more stable and reliable, effectively avoiding platform shaking or rolling problems that may be caused by uneven force on a single roller 141, and further improving the stability and reliability of the equipment installation platform 100.

[0038] In one embodiment of the present invention, the circular platform 21 is further provided with a locking component, which is used to lock or unlock the circular platform 21 to the annular bracket 11.

[0039] Specifically, such as Figure 2 and Figure 3 As shown, when installing the electrical control equipment, firstly, the locking assembly is used to lock the circular platform 21 to the annular bracket 11 to prevent accidental rotation of the circular platform 21 and ensure accurate installation of the electrical control equipment. When the platform position needs to be adjusted, the locking assembly is unlocked, and the circular platform 21 is rotated to the appropriate position using the rotation drive assembly 22. Then, the platform is locked again by the locking assembly to ensure stable operation of the electrical control equipment.

[0040] In one embodiment of this utility model, the locking assembly includes a locking pin. A locking hole 2121 is provided on the second annular step 212, and the locking hole 2121 extends vertically through the second annular step 212. A plurality of locking grooves 16 are provided on the top of the annular bracket 11 at intervals along the circumference of the annular bracket 11. The opening of the locking groove 16 is a second groove 151, and each second groove 151 is arranged facing upward. The locking hole 2121 can rotate with the circular platform 21 to align with any second groove 151, so that the locking hole 2121 and the locking groove 16 aligned with it are connected to form a locking channel. The locking pin can be inserted into the locking channel or pulled out from the locking channel to lock or unlock the circular platform 21 to the annular bracket 11.

[0041] Furthermore, such as Figure 2 and Figure 3 As shown, the locking assembly uses a locking pin for locking and unlocking. A locking hole 2121 is vertically drilled through the second annular step 212. Multiple locking slots 16 are spaced circumferentially at the top of the annular bracket 11, with the second opening 151 of each slot facing upwards. When the circular platform 21 rotates to the target position, the locking hole 2121 aligns with any of the locking slots 16, forming a connecting locking channel. Inserting the locking pin into the locking channel locks the circular platform 21. To adjust the position, remove the locking pin, rotate the platform to the appropriate position, and then reinsert the locking pin to complete the locking. The locking pin and the locking slots 16 work together to achieve precise locking and unlocking of the platform. Different positions of the locking slots 16 correspond to different rotational positions of the platform. To fix the platform, insert the locking pin into the corresponding locking slot 16 to ensure stability; to adjust the platform, simply remove the locking pin and rotate the platform. The operation is simple.

[0042] In one embodiment of this utility model, each leg 12 can extend and retract vertically to drive the ring support 11 to rise and fall. The rotation drive assembly 22 includes a lifting drive seat 221 and a rotation drive component 222. The rotation drive component 222 is installed on the lifting drive seat 221, which is installed at the bottom of the tower. The lifting drive seat 221 can drive the rotation drive component 222 to rise and fall vertically. The output shaft of the rotation drive component 222 is detachably connected to the bottom of the circular platform 21 through a rotating shaft.

[0043] Specifically, within the wind turbine tower, multiple outriggers 12 of the equipment mounting platform 100 are arranged vertically and have telescopic functionality. Specifically, each outrigger 12 has an internal telescopic mechanism, such as a threaded lifting mechanism, a hydraulic cylinder, or an electric push rod. Taking the threaded lifting mechanism as an example, the screw is threadedly connected to the outrigger 12 sleeve; rotating the screw allows the outrigger 12 sleeve to rise and fall vertically. The bottom end of the outrigger 12 is fixed to the bottom of the tower, and the top end is connected to the annular support 11. The extension and retraction of the outrigger 12 drives the annular support 11 to rise and fall. The rotation drive assembly 22 includes a lifting drive seat 221 and a rotation drive component 222. The lifting drive seat 221 can be a hollow columnar structure, installed at the bottom of the tower or on a dedicated support platform, and connected to the tower via guide rails or guide keys to ensure smooth lifting. The rotation drive component 222 can be a motor, as used in existing technology, installed on the upper part of the lifting drive seat 221. The output shaft of the rotation drive component 222 is connected to a rotating shaft, which is vertically arranged and detachably connected at its upper end to the bottom of the circular platform 21. The lifting drive base 221 is driven by a separate lifting drive mechanism (such as a screw jack, hydraulic cylinder, etc.) and moves vertically to adjust the height of the rotary drive component 222. When it is necessary to adjust the height of the equipment installation platform 100, the height of the multiple support legs 12 is adjusted first, and then the lifting drive mechanism drives the lifting drive base 221 and the rotary drive component 222 to be raised and lowered as a whole to adjust the height of the rotary drive component 222. Then, the rotating shaft is connected to the bottom of the circular platform 21 to complete the height adjustment of the equipment installation platform 100 provided by this utility model, thereby adapting to equipment installation at different heights and improving the versatility and flexibility of the equipment installation platform 100.

[0044] In one embodiment of the present invention, the bottom of the circular platform 21 is recessed upward to form a mounting cavity 213, and a platform frame 214 is provided in the mounting cavity 213. The platform frame 214 is connected to the circular platform 21, and the output shaft of the rotary drive 222 is detachably connected to the platform frame 214 through a rotating shaft.

[0045] Specifically, the platform frame 214 inside the mounting cavity 213 provides additional support for the circular platform 21, distributing the weight of the upper equipment, reducing local stress, preventing deformation, ensuring that the equipment mounting platform 100 stably supports the electrical control equipment, and ensuring the safe operation of the wind turbine.

[0046] This utility model also proposes a wind turbine generator, which includes a tower and a wind turbine generator equipment installation platform 100. The equipment installation platform 100 is disposed inside the tower of the wind turbine generator. The specific structure of the wind turbine generator equipment installation platform 100 is as described in the above embodiments. Since this wind turbine generator adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0047] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the protection scope of the present utility model.

Claims

1. A wind turbine generator equipment installation platform, characterized in that, The equipment installation platform is disposed inside the tower of the wind turbine, and the equipment installation platform includes: The base frame structure includes an annular support and multiple legs. The multiple legs are spaced apart circumferentially along the annular support, and the annular support is supported on the top of the multiple legs. The bottom of each leg is supported on the bottom of the tower. The annular support forms a circular accommodating cavity. The platform structure includes a circular platform and a rotation drive assembly. The circular platform is used for the installation of the electrical control equipment of the wind turbine. The circular platform is disposed in the accommodating cavity and rotatably mounted on the annular support. The rotation drive assembly is installed at the bottom of the tower and connected to the bottom of the circular platform. The rotation drive assembly is used to drive the circular platform to rotate relative to the annular support about its axial direction.

2. The equipment installation platform for the wind turbine generator as described in claim 1, characterized in that, The annular support has an annular groove extending circumferentially along the inner side of the receiving cavity. The annular groove is recessed outward from the cavity wall of the receiving cavity. The opening of the annular groove is a first opening, which is disposed inward. The circular platform is disposed in the receiving cavity. The outer edge of the circular platform has a first annular step extending circumferentially and protruding outward. The first annular step extends into the annular groove and slides in cooperation with the annular groove.

3. The equipment installation platform for the wind turbine generator as described in claim 2, characterized in that, The first annular step is located near the bottom of the circular platform, and the top of the circular platform has a second annular step that extends circumferentially and protrudes outward. The second annular step is supported on the top of the annular bracket and slides in cooperation with the top of the annular bracket.

4. The equipment installation platform for the wind turbine generator as described in claim 2, characterized in that, The annular groove includes a top wall, a bottom wall, and a side wall. The side wall is disposed opposite to the first groove opening. The bottom wall is provided with a rolling component. The first annular step is supported by the rolling component and rolls in cooperation with the rolling component.

5. The equipment installation platform for the wind turbine generator as described in claim 4, characterized in that, The rolling assembly includes multiple rollers, which are spaced apart circumferentially along the annular groove. The bottom wall of the groove is recessed downwards corresponding to the position of each roller to form an upward-facing mounting groove. The rollers are rotatably mounted on the groove wall via a rotating shaft. The top of the rollers extends upwards out of the opening of the mounting groove and rolls in cooperation with the first annular step.

6. The equipment installation platform for the wind turbine generator as described in claim 3, characterized in that, The circular platform is also provided with a locking component, which is used to lock or unlock the circular platform to the annular bracket.

7. The equipment installation platform for the wind turbine generator as described in claim 6, characterized in that, The locking assembly includes a locking pin, a locking hole is provided on the second annular step, the locking hole penetrates the second annular step vertically, and a plurality of locking grooves are provided on the top of the annular bracket at intervals along the circumference of the annular bracket. The opening of the locking groove is a second groove, and each second groove is facing upward. The locking hole can rotate with the circular platform to align with any of the second grooves, so that the locking hole and the locking groove aligned with it communicate to form a locking channel. The locking pin can be inserted into or pulled out of the locking channel to lock or unlock the circular platform to the annular bracket.

8. The equipment installation platform for the wind turbine generator as described in any one of claims 1 to 7, characterized in that, Each of the legs can extend and retract vertically to drive the annular support to rise and fall. The rotation drive assembly includes a lifting drive seat and a rotation drive component. The rotation drive component is installed on the lifting drive seat, which is installed at the bottom of the tower. The lifting drive seat can drive the rotation drive component to rise and fall vertically. The output shaft of the rotation drive component is detachably connected to the bottom of the circular platform via a rotating shaft.

9. The equipment installation platform for the wind turbine generator as described in claim 8, characterized in that, The bottom of the circular platform is recessed upward to form a mounting cavity, and a platform frame is provided in the mounting cavity. The platform frame is connected to the circular platform, and the output shaft of the rotary drive is detachably connected to the platform frame through the rotating shaft.

10. A wind turbine generator, characterized in that, The wind turbine includes a tower and an equipment installation platform for the wind turbine as described in any one of claims 1 to 9, wherein the equipment installation platform is disposed inside the tower of the wind turbine.

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