Semi-direct-drive gearbox and generator tower separation tool system and separation method

Abstract

The invention relates to the technical field of high-altitude operation equipment of wind generating sets, in particular to a tool system and method for separating a semi-direct-drive gearbox from a generator tower. The tool system for separating the semi-direct-drive gearbox from the generator tower comprises a tool support fixed in a cabin, and the tool support is movably connected with a movable platform; the mobile platform carries at least two lifting mechanisms which operate independently, each lifting mechanism comprises a lifting machine main body fixed on the mobile platform, a chain driven by the lifting machine main body, a first chain wheel group fixed on the mobile platform and a second chain wheel group for suspending and fixing a component to be separated, one end of the chain is connected with the lifting machine main body, and the other end of the chain is connected with the lifting machine main body; a main body part of the elevator sequentially winds around the first chain wheel set and the second chain wheel set, the other end of the elevator is fixed to the first chain wheel set, and the elevator main body drives the second chain wheel set to move by winding and unwinding a chain so as to lift or lower a to-be-separated component. Therefore, the separation requirement of the obliquely-arranged to-be-separated part is met.

Description

Technical Field

[0001] This invention relates to the field of high-altitude work equipment for wind turbine generator sets, and in particular to a separation tooling system and separation method for a semi-direct drive gearbox and a generator tower. Background Technology

[0002] As the megawattage of wind turbines increases, semi-direct drive gearboxes are gradually becoming the mainstream. Most semi-direct drive gearboxes adopt an integrated mounting structure with the generator, where the generator is directly mounted at the rear end of the gearbox without independent support. Currently, semi-direct drive units face problems such as output bearing electrolytic corrosion and output oil leakage. When maintenance of the gearbox is required, the traditional method is to use a large crane to lift the entire drivetrain down the tower for return to the factory for repair. This method is costly, time-consuming, and severely constrained by external conditions such as road conditions and weather.

[0003] Existing technologies disclose methods for constructing gantry cranes inside the nacelle for gearbox internal maintenance. However, these methods present irreconcilable contradictions on the construction site. The gantry crane hoisting equipment relies on the direct vertical lifting of large hooks. Furthermore, due to considerations of aerodynamic performance, structural safety, and engineering feasibility, wind turbine generators are mostly installed at an angle. Therefore, attention must be paid to the generator's lifting posture when separating it. In existing solutions, when the lifting point is already close to the top of the nacelle, the height of the hook will consume the vertical space inside the nacelle, resulting in a lifting stroke close to zero, making the operation difficult. Summary of the Invention

[0004] The purpose of this invention is to provide a separation tooling system and method for separating a semi-direct drive gearbox from a generator tower, which enables the separation of the semi-direct drive gearbox from the generator in the space of a wind turbine tower with an inclined installation and extremely limited space, without disassembling the entire transmission chain.

[0005] To achieve the above objectives, the present invention provides a semi-direct drive gearbox separation fixture system for a wind turbine tower, which is installed inside the nacelle of a wind turbine. The system includes a fixture support fixed inside the nacelle, a movable platform movably connected to the fixture support, and at least two independently operating lifting mechanisms mounted on the movable platform. Each lifting mechanism includes a hoist body fixed to the movable platform, a chain driven by the hoist body, a first sprocket assembly fixed to the movable platform, and a second sprocket assembly suspending and fixing the component to be separated. One end of the chain is connected to the hoist body, and its main body passes sequentially around the first sprocket assembly and the second sprocket assembly. The other end is fixed to the first sprocket assembly. The hoist body drives the second sprocket assembly to move by retracting or extending the chain, thereby lifting or lowering the component to be separated.

[0006] The core of the technical solution disclosed in this invention lies in abandoning the traditional method of directly using hooks to suspend the parts to be separated, thus saving vertical space. Instead, it utilizes the chain, the first sprocket group, and the second sprocket group to construct a pulley system. During operation, the chain is raised and lowered by the hoist body, which drives the second sprocket group and the connected parts to be separated to produce vertical displacement, converting a portion of the vertical stroke required for separating the parts into the displacement of the chain between the pulley groups. Furthermore, because the chain can fully utilize the horizontal and vertical space within the cabin, it avoids the need for a large stroke above the hoisting point for vertical lifting.

[0007] The mobile platform includes side connecting beams, a moving main beam, and fixed beams. The side connecting beams are distributed on both sides of the moving main beam and are movably connected to the tooling bracket. The fixed beams are orthogonally arranged on the upper surface of the moving main beam and are fixedly connected to the first sprocket assembly.

[0008] The side connecting beams are distributed on both sides of the moving main beam, rest on the tooling bracket, and move in conjunction with the tooling bracket to restrict the movement path of the moving platform. The fixed beam is fixed to the moving main beam and is used to house the first sprocket assembly.

[0009] The side connecting beam is fixed with a hoist lug and a platform roller. The hoist lug is located on the inner side of the side connecting beam facing the other side and is hooked to the main body of the hoist. The platform roller is placed at the bottom of the side connecting beam and slides with the tooling bracket.

[0010] The hoist lug is used to house the main body of the hoist, so that the main body of the hoist can be hooked into the hoist lug after the chain passes through the first sprocket set. The platform roller is used to meet the movement requirements of the moving main beam. The platform roller is installed behind the tooling bracket, which on the one hand restricts the movement of the moving main beam, and on the other hand prevents the moving main beam from displacing along the length extension direction.

[0011] The platform roller includes a roller bracket, a roller body, and a roller fixing shaft. The roller bracket is fixed to the lower side of the side connecting beam and forms a receiving groove. The roller fixing shaft passes through the receiving groove laterally. The roller body is rotatably sleeved on the roller fixing shaft and located in the receiving groove.

[0012] The roller bracket is connected to the lower side of the side connecting beam, and the receiving groove formed inside it is mainly used to accommodate the roller body. The roller fixing shaft is used to accommodate the roller body.

[0013] The tooling bracket includes a support frame and a front column extending forward from one side therefrom. The front column is connected to a gearbox. Along the opposite direction of the extension of the front column, the support frame is provided with two guide rails to restrict the movement of the mobile platform.

[0014] The support frame is used to house the mobile platform and is fixed inside the cabin to cooperate with the mobile platform and the lifting mechanism to separate the parts to be separated. The front column is attached to the support of the gearbox.

[0015] The support frame includes multiple load-bearing columns, cross braces, translation restriction plates, and reinforcing supports. The load-bearing columns are symmetrically distributed under the two guide rails. The cross braces connect the two guide rails. The translation restriction plates are fixed to the outside of the load-bearing columns and connected to the cabin. The reinforcing supports are arranged between the load-bearing columns.

[0016] Multiple load-bearing columns serve as main load-bearing beams and are placed on the platform inside the cabin. The reinforcing supports enhance the relative stability between the load-bearing columns. The cross braces cooperate with the load-bearing columns to fix the two guide rails. The translation restriction plate is used to enhance the placement stability of the load-bearing columns within the cabin.

[0017] The first sprocket assembly includes a sprocket bracket, a connecting pin, a first sprocket, a spacer ring, and a bearing. The sprocket bracket is fixedly connected to the mobile platform. The connecting pin passes through the sprocket bracket. The first sprocket is rotatably mounted on the connecting pin via the bearing and engages with the chain. The spacer ring is disposed within the axial gap between the first sprocket and the sprocket bracket.

[0018] The sprocket bracket is used to fix the sprocket on the mobile platform, and the connecting pin passes through the sprocket bracket to house the first sprocket. The spacer ring is used to limit the distance between the first sprocket and the sprocket bracket, so that the first sprocket assembly reduces the swaying along the connecting pin when separating the parts to be separated.

[0019] The second sprocket assembly includes a sprocket connecting plate, a second sprocket, and a lifting lug connecting pin. The second sprocket is disposed within the sprocket connecting plate, and the lifting lug connecting pin passes through the sprocket connecting plate to fix the component to be separated. The sprocket connecting plate is engaged with the chain through the built-in second sprocket.

[0020] The sprocket connecting plate is used to house the lifting lug connecting pin. After the second sprocket is sleeved on the lifting lug connecting pin, it cooperates with the chain to drive the vertical displacement of the part to be separated. The lifting lug connecting pin is used to cooperate with the sprocket connecting plate and insert into the lifting lug of the part to be separated, so that the second sprocket assembly is connected and fixed to the part to be separated.

[0021] The first sprocket and the second sprocket have the same structure, both including a disc-shaped wheel body. A through hole is opened in the middle of the disc-shaped wheel body, and several tooth-shaped protrusions are provided on the outer edge of the disc-shaped wheel body. The tooth-shaped protrusions also form a meshing track that meshes with the chain in the width direction.

[0022] The first sprocket and the second sprocket are provided with through holes for accommodating connecting pins, and the toothed protrusions on the outer edges are used to engage with the chain. The meshing track restricts the position of the chain in the disc-shaped wheel body, and the toothed protrusions engage with the chain to achieve lifting.

[0023] This invention also discloses a method for separating a semi-direct drive gearbox from a generator tower, applied to the aforementioned tooling system for separating a semi-direct drive gearbox from a generator tower, comprising the following steps: S1: Install tooling brackets and a moving platform at the rear of the cabin, and fix the tooling brackets inside the cabin by means of translation restriction plates; S2: Erect a lifting mechanism, with the chain passing sequentially around the first sprocket group and the second sprocket group, wherein the second sprocket group is suspended by the chain; S3: Connect the second sprocket group to the part to be separated through the lifting lug connecting pin, and retract or extend the chain until the chains of each lifting mechanism are taut; S4: Release the lock of the component to be separated, complete the separation of the component to be separated by the mobile platform, tighten the chain, and adjust the angle of the component to be separated to create a working space.

[0024] During the separation operation, after the tooling bracket is installed and fixed inside the machine compartment, a lifting system is built using chains, the first sprocket group, and the second sprocket group. The chains are used in conjunction with the second sprocket group for lifting to save vertical space. Then, multiple lifting mechanisms are used to fix the tilted parts to be separated, so that after the fixation is released, the parts to be separated remain in a stable state. After the separation is completely released, the lifting chains can reserve vertical space within the limit space as a working space for the operators.

[0025] This invention discloses a semi-direct drive gearbox separation fixture system and method for separating a gearbox from a generator tower. Addressing the challenge of limited space within the wind turbine nacelle without disassembling the entire drivetrain, the system utilizes a chain in conjunction with a first and second sprocket assembly to form a lifting system. This significantly reduces unnecessary vertical space occupation within the nacelle. The corresponding separation method, applied to this fixture system, involves sequentially installing a fixture support, setting up a lifting mechanism, and establishing a chain routing path. This allows the component to be separated to be lifted via the chain, further minimizing unnecessary space occupation within the nacelle. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram showing the connection between the gearbox and the generator inside the engine room.

[0028] Figure 2 This is an isometric structural diagram of a semi-direct drive gearbox and generator tower separation tooling system according to the present invention.

[0029] Figure 3 This is an isometric structural diagram of the uninstalled chain of a semi-direct drive gearbox and generator tower separation tooling system according to the present invention.

[0030] Figure 4 This is a schematic diagram of the structure of the platform roller of the semi-direct drive gearbox and the generator tower separation tooling system of the present invention.

[0031] Figure 5 This is a cross-sectional view of the platform rollers of a semi-direct drive gearbox and generator tower separation tooling system according to the present invention.

[0032] Figure 6 This is a schematic diagram illustrating the cooperation principle between the chain, the first sprocket set, and the second sprocket set of a semi-direct drive gearbox and generator tower separation tooling system according to the present invention.

[0033] Figure 7 This is a cross-sectional view of the first sprocket assembly of a semi-direct drive gearbox and generator tower separation tooling system according to the present invention.

[0034] Figure 8 This is a cross-sectional view of the second sprocket assembly of a semi-direct drive gearbox and generator tower separation tooling system according to the present invention.

[0035] Figure 9 This is an isometric structural diagram of the disc-shaped wheel body of a semi-direct drive gearbox and generator tower separation tooling system according to the present invention.

[0036] 1. Tooling support frame; 2. Mobile platform; 3. Lifting mechanism; 4. Gearbox; 5. Generator; 11. Support frame; 12. Front column; 13. Guide rail; 111. Load-bearing column; 112. Cross brace; 113. Translation limit plate; 114. Reinforcing support; 21. Side connecting beam; 22. Mobile main beam; 23. Fixed beam; 211. Hoist lifting lug; 212. Platform rollers; 213. Roller bracket; 214. Roller body; 215. 216. Roller fixed shaft; 31. Receiving groove; 32. Hoist body; 33. Chain; 34. First sprocket assembly; 35. Second sprocket assembly; 36. Disc wheel body; 37. Sprocket bracket; 38. Connecting pin; 39. First sprocket; 30. Spacing ring; 31. Bearing; 32. Sprocket connecting plate; 33. Second sprocket; 34. Lifting lug connecting pin; 34. Toothed protrusion; 345. Meshing track; 346. Through hole. Detailed Implementation

[0037] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0038] Please see Figures 1 to 9 A semi-direct drive gearbox 4 and generator 5 tower separation tooling system is installed in the nacelle of a wind turbine generator set. It includes a tooling bracket 1 fixed in the nacelle, a mobile platform 2 movably connected to the tooling bracket 1, and at least two independently operating lifting mechanisms 3 on the mobile platform 2. Each lifting mechanism 3 includes a lifting body 31 fixed on the mobile platform 2, a chain 32 driven by the lifting body 31, a first sprocket set 33 fixed on the mobile platform 2, and a second sprocket set 34 suspending and fixing the part to be separated. One end of the chain 32 is connected to the lifting body 31, and its main body passes sequentially around the first sprocket set 33 and the second sprocket set 34. The other end is fixed to the first sprocket set 33. The lifting body 31 drives the second sprocket set 34 to move by retracting and extending the chain 32, thereby lifting or lowering the part to be separated.

[0039] Please see Figure 1 and Figure 2In this embodiment, after the tooling bracket 1 is fixed inside the cabin, the mobile platform 2 is built on the tooling bracket 1 and raised and lowered in conjunction with the lifting mechanism 3. The component to be separated can be displaced along the extension direction of the guide rail 13 on the tooling bracket 1 with the lifting mechanism 3. A hook is provided on the outside of the hoist body 31 to fix it to the mobile platform 2. The chain 32, the first sprocket group 33, and the second sprocket group 34 form a pulley system. During operation, the chain 32 is raised and lowered by the hoist body 31, which drives the second sprocket group 34 and the component to be separated connected to it to produce vertical displacement, converting part of the vertical stroke required by the component to be separated into the displacement of the chain 32 between the pulley groups. There are multiple lifting mechanisms 3, which can be connected to the outer periphery of the object to be separated as needed. Without affecting the posture of the object to be separated, the pressure of the object to be separated is evenly distributed, and the posture of the object can be adjusted after separation. The component to be separated is the generator 5.

[0040] Furthermore, the mobile platform 2 includes a side connecting beam 21, a mobile main beam 22, and a fixed beam 23. The side connecting beam 21 is distributed on both sides of the mobile main beam 22 and is movably connected to the tooling bracket 1. The fixed beam 23 is orthogonally arranged on the upper surface of the mobile main beam 22 and is fixedly connected to the first sprocket assembly 33.

[0041] Please see Figure 2 The side connecting beam 21 is fixed on both sides of the movable main beam 22. The movable main beam 22 carries the fixed beam 23. The fixed beam 23 fixes the first sprocket group 33. The first sprocket group 33 and the second sprocket group 34 are connected by the chain 32. When the chain 32 is tightened, the first sprocket group 33 acts as a fulcrum to support the movement of the second sprocket group 34.

[0042] Furthermore, a hoist lug 211 and a platform roller 212 are fixed on the side connecting beam 21. The hoist lug 211 is located on its inner side facing the other side connecting beam 21 and is hooked to the hoist body 31. The platform roller 212 is placed at the bottom of the side connecting beam 21 and slides in cooperation with the tooling bracket 1.

[0043] Please see Figures 4 to 6 The hoist lug 211 is mainly used to fix the hoist body 31. The platform roller 212 cooperates with the guide rail 13. After the platform roller 212 is placed on the guide rail 13, it makes line contact with the guide rail 13 so as to move on the guide rail 13, thereby meeting the translation requirements of the mobile platform 2.

[0044] Furthermore, the platform roller 212 includes a roller bracket 213, a roller body 214, and a roller fixing shaft 215. The roller bracket 213 is fixed to the lower side of the side connecting beam 21 and forms a receiving groove 216. The roller fixing shaft 215 passes through the receiving groove 216 laterally. The roller body 214 is rotatably sleeved on the roller fixing shaft 215 and located in the receiving groove 216.

[0045] Please see Figure 4 and Figure 5 The receiving groove 216 formed inside the roller bracket 213 is used to house the roller body 214. The roller body 214 rolls in the receiving groove 216 through the roller fixing shaft 215. The roller bracket 213 is fixed to the lower side of the side connecting beam 21 to cooperate with the rotation of the roller body 214.

[0046] Furthermore, the tooling bracket 1 includes a support frame 11 and a front column 12 extending forward from one side therefrom. The front column 12 is connected to the gearbox. Along the direction opposite to the extension of the front column 12, the support frame 11 is provided with two guide rails 13 to restrict the movement of the mobile platform 2.

[0047] In this embodiment, the support frame 11 mainly works in conjunction with the front column 12. The guide rail 13 provided on the support frame 11 allows the roller body 214 to be stably placed therein, while the front column 12 overlaps with the gearbox 4 to assist in the stability of the support frame 11.

[0048] Furthermore, the support frame 11 includes multiple load-bearing columns 111, cross braces 112, translation restriction plates 113, and reinforcing supports 114. The load-bearing columns 111 are symmetrically distributed under the two guide rails 13. The cross braces 112 connect the two guide rails 13. The translation restriction plates 113 are fixed to the outside of the load-bearing columns 111 and connected to the cabin. The reinforcing supports 114 are arranged between the load-bearing columns 111.

[0049] Multiple load-bearing columns 111 are used to support the guide rail 13. The cross brace 112 works in conjunction with the reinforcing support 114 to improve the structural stability of the entire support frame 11. The translation restriction plate 113 is set outside the load-bearing columns 111 to fix it to the cabin.

[0050] Furthermore, the first sprocket assembly 33 includes a sprocket bracket 331, a connecting pin 332, a first sprocket 333, a spacer ring 334, and a bearing 335. The sprocket bracket 331 is fixedly connected to the moving platform 2. The connecting pin 332 passes through the sprocket bracket 331. The first sprocket 333 is rotatably mounted on the connecting pin 332 through the bearing 335 and engages with the chain 32. The spacer ring 334 is disposed within the axial gap between the first sprocket 333 and the sprocket bracket 331.

[0051] The first sprocket assembly 33 serves as the fulcrum of the lifting system and works in conjunction with the second sprocket assembly 34 for lifting. The connecting pin 332 is used to mount the first sprocket 333, so that the first sprocket 333 can rotate in conjunction with the chain 32.

[0052] Furthermore, the second sprocket assembly 34 includes a sprocket connecting plate 341, a second sprocket 342, and a lifting lug connecting pin 343. The second sprocket 342 is disposed within the sprocket connecting plate 341, and the lifting lug connecting pin 343 penetrates the sprocket connecting plate 341 to fix the component to be separated. The sprocket connecting plate 341 is engaged with the chain 32 through the built-in second sprocket 342.

[0053] Please see Figure 8 In this embodiment, the second sprocket assembly 34 significantly reduces the vertical space occupied inside the engine compartment. After the second sprocket 342 is installed in the sprocket connecting plate 341, the component to be separated is fixed to the sprocket connecting plate 341 by the lifting lug connecting pin 343. The second sprocket 342 also has the spacer ring 334 and bearing 335. Since they have the same function as the first sprocket 333, they are not described in detail in this embodiment. For details, please refer to [link to relevant documentation]. Figure 8 .

[0054] Furthermore, the first sprocket 333 and the second sprocket 342 have the same structure, both including a disc-shaped wheel body 35. A through hole 346 is opened in the middle of the disc-shaped wheel body 35, and a plurality of toothed protrusions 344 are provided on the outer edge of the disc-shaped wheel body 35. In the width direction of the toothed protrusions 344, a meshing track 345 that meshes with the chain 32 is also formed.

[0055] Please see Figure 9 The disc-shaped wheel 35 is provided to enhance the strength of the chain 32 and its matching strength, so that the chain 32 can change the direction of movement, and at the same time, the chain 32 can be used to lift the part to be separated that is fixed by the lifting lug connecting pin 343.

[0056] This invention also discloses a method for separating the semi-direct drive gearbox 4 from the generator 5 on the tower, applied to the aforementioned tooling system for separating the semi-direct drive gearbox 4 from the generator 5 on the tower, comprising the following steps: S1: Install tooling bracket 1 and mobile platform 2 at the rear of the cabin, and fix tooling bracket 1 inside the cabin by means of translation restriction plate 113; S2: Erect the lifting mechanism 3, and the chain 32 passes around the first sprocket group 33 and the second sprocket group 34 in sequence, wherein the second sprocket group 34 is suspended by the chain 32; S3: Connect the second sprocket group 34 to the part to be separated via the lifting lug connecting pin 343, and retract or extend the chain 32 until the chain 32 of each lifting mechanism 3 is in a taut state; S4: Release the lock of the component to be separated, complete the separation of the component to be separated through the mobile platform 2, tighten the chain 32, and adjust the angle of the component to be separated to form a working space.

[0057] In this embodiment, the tooling bracket 1 is first securely installed inside the engine compartment, and a lifting system consisting of the chain 32, the first sprocket group 33, and the second sprocket group 34 is built on it. By raising and lowering the chain 32, the second sprocket group 34 connected to the component to be separated is driven to rise and fall. Utilizing the pulley system transmission principle, the component is raised and lowered while significantly reducing the vertical space occupied directly above the lifting point. Secondly, through the coordinated action of the multiple independently controlled lifting mechanisms 3, the component to be separated, which is in an inclined installation state, is subjected to multi-point attitude constraints and fixation before separation, ensuring that it can maintain its attitude stability after being released from the original connection structure, avoiding instability or off-center loading. Finally, after the component to be separated is completely disconnected, by synchronously controlling the raising and lowering of the chains 32 of each lifting mechanism 3, the final position of the component can be further adjusted and fixed in the extremely limited vertical space inside the engine compartment, thereby reserving operable working space for subsequent maintenance operations.

[0058] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A semi-direct drive gearbox and generator tower separation tooling system, installed inside the nacelle of a wind turbine generator set, characterized in that, The system includes a tooling bracket (1) fixed inside the cabin, on which a mobile platform (2) is movably connected. The mobile platform (2) is equipped with at least two independently operating lifting mechanisms (3). Each lifting mechanism (3) includes a hoist body (31) fixed on the mobile platform (2), a chain (32) driven by the hoist body (31), a first sprocket set (33) fixed on the mobile platform (2), and a second sprocket set (34) suspending and fixing the component to be separated. One end of the chain (32) is connected to the hoist body (31), and its main body passes sequentially around the first sprocket set (33) and the second sprocket set (34). The other end is fixed on the first sprocket set (33). The hoist body (31) drives the second sprocket set (34) to move by retracting and extending the chain (32), thereby lifting or lowering the component to be separated.

2. The semi-direct drive gearbox and generator tower separation tooling system as described in claim 1, characterized in that, The mobile platform (2) includes a side connecting beam (21), a mobile main beam (22), and a fixed beam (23). The side connecting beam (21) is distributed on both sides of the mobile main beam (22) and is movably connected to the tooling bracket (1). The fixed beam (23) is orthogonally arranged on the upper surface of the mobile main beam (22) and is fixedly connected to the first sprocket assembly (33).

3. The semi-direct drive gearbox and generator tower separation tooling system as described in claim 2, characterized in that, The side connecting beam (21) is fixed with a hoist lug (211) and a platform roller (212). The hoist lug (211) is located on its inner side facing the other side connecting beam (21) and is hooked to the hoist body (31). The platform roller (212) is placed at the bottom of the side connecting beam (21) and slides with the tooling bracket (1).

4. A semi-direct drive gearbox and generator tower separation tooling system as described in any one of claims 2 or 3, characterized in that, The platform roller (212) includes a roller bracket (213), a roller body (214), and a roller fixing shaft (215). The roller bracket (213) is fixed to the lower side of the side connecting beam (21) and forms a receiving groove (216). The roller fixing shaft (215) passes through the receiving groove (216) laterally. The roller body (214) is rotatably sleeved on the roller fixing shaft (215) and located in the receiving groove (216).

5. The semi-direct drive gearbox and generator tower separation tooling system as described in claim 1, characterized in that, The tooling bracket (1) includes a support frame (11) and a front column (12) extending forward from one side therefrom. The front column (12) is connected to the gearbox. In the opposite direction to the extension of the front column (12), the support frame (11) is provided with two guide rails (13) to restrict the movement of the mobile platform (2).

6. The semi-direct drive gearbox and generator tower separation tooling system as described in claim 5, characterized in that, The support frame (11) includes multiple load-bearing columns (111), cross braces (112), translation restriction plates (113), and reinforcing supports (114). The load-bearing columns (111) are symmetrically distributed under the two guide rails (13). The cross braces (112) connect the two guide rails (13). The translation restriction plates (113) are fixed outside the load-bearing columns (111) and connected to the cabin. The reinforcing supports (114) are arranged between the load-bearing columns (111).

7. The semi-direct drive gearbox and generator tower separation tooling system as described in claim 1, characterized in that, The first sprocket assembly (33) includes a sprocket bracket (331), a connecting pin (332), a first sprocket (333), a spacer ring (334), and a bearing (335). The sprocket bracket (331) is fixedly connected to the moving platform (2). The connecting pin (332) passes through the sprocket bracket (331). The first sprocket (333) is rotatably mounted on the connecting pin (332) through the bearing (335) and engages with the chain (32). The spacer ring (334) is disposed in the axial gap between the first sprocket (333) and the sprocket bracket (331).

8. The semi-direct drive gearbox and generator tower separation tooling system as described in claim 1, characterized in that, The second sprocket assembly (34) includes a sprocket connecting plate (341), a second sprocket (342), and a lifting lug connecting pin (343). The second sprocket (342) is disposed inside the sprocket connecting plate (341), and the lifting lug connecting pin (343) passes through the sprocket connecting plate (341) to fix the part to be separated. The sprocket connecting plate (341) is engaged with the chain (32) through the built-in second sprocket (342).

9. The semi-direct drive gearbox and generator tower separation tooling system as described in claim 8, characterized in that, The first sprocket (333) and the second sprocket (342) have the same structure, both including a disc-shaped wheel body (35). A through hole (346) is opened in the middle of the disc-shaped wheel body (35), and a plurality of toothed protrusions (344) are provided on the outer edge of the disc-shaped wheel body (35). The toothed protrusions (344) also form a meshing track (345) that meshes with the chain (32) in the width direction.

10. A method for separating a semi-direct drive gearbox from a generator tower, applied to the semi-direct drive gearbox and generator tower separation tooling system as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1: Install tooling bracket (1) and mobile platform (2) at the rear of the cabin, and fix tooling bracket (1) in the cabin by means of translation restriction plate (113); S2: Erect the lifting mechanism (3), and the chain (32) passes around the first sprocket group (33) and the second sprocket group (34) in sequence, wherein the second sprocket group (34) is suspended by the chain (32); S3: Connect the second sprocket group (34) to the part to be separated through the lifting lug connecting pin (343), and retract the chain (32) until the chain (32) of each lifting mechanism (3) is taut; S4: Release the lock of the part to be separated, complete the separation of the part to be separated by the moving platform (2), tighten the chain (32), and adjust the angle of the part to be separated to form a working space.

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