Dismounting device for yaw clamp of fan

Abstract

The utility model belongs to the technical field of fan maintenance equipment, particularly relates to a fan yaw clamp dismounting device, and provides the following scheme aiming at the problems of low operation efficiency, high safety risk and non-adjustable pulling direction of the existing dismounting device: the fan yaw clamp dismounting device comprises an arc-shaped dismounting frame, a fixing assembly, a tightening and stretching assembly and a protection assembly. The fixing assembly is used for fixing the whole device on an external positioning fulcrum such as a cable bridge; the tightening and stretching assembly is meshed with a driving gear on a U-shaped pulling plate through an arc-shaped rack on an arc-shaped dismounting frame, arc-shaped movement of the U-shaped pulling plate and a chain block on the U-shaped pulling plate can be achieved, and therefore stepless adjustment of the pulling angle of a clamp is achieved. The U-shaped pulling plate is further provided with an angle self-locking adjusting assembly, and the position of the U-shaped pulling plate is reliably locked through worm and gear transmission. The guard assembly provides a safety barrier. By means of the yaw clamp disassembling tool, multi-angle, safe and efficient disassembling of the yaw clamp is achieved, and operation safety and efficiency are remarkably improved.

Description

Technical Field

[0001] This utility model relates to a disassembly device, specifically a wind turbine yaw clamp disassembly device, belonging to the technical field of wind turbine maintenance equipment. Background Technology

[0002] Wind power, as a clean and renewable energy source, has been widely used globally. The yaw system is a key component of wind turbines, its function being to adjust the nacelle angle according to wind direction, ensuring the rotor is always aligned with the wind to maximize wind energy capture. The yaw braking system, especially the yaw brake caliper, is a crucial actuator within the yaw system. Its main function is to reliably lock the nacelle in a designated position by applying braking torque after yaw action or in extreme wind conditions, preventing the nacelle from rotating arbitrarily, ensuring stable turbine operation, and protecting the yaw drive components from damage. The yaw brake caliper is typically fastened to a flange or similar structure on the top of the wind turbine tower with high-strength bolts, enduring enormous alternating loads and vibrations over long periods in harsh working environments. During regular maintenance, troubleshooting, or technical upgrades of wind turbines, it is often necessary to disassemble and replace worn, leaking, or malfunctioning yaw brake calipers. However, because the caliper is exposed to the elements for extended periods, its connecting bolts are prone to corrosion and seizing, and the installation space is usually very limited, posing significant challenges to disassembly. Traditional dismantling methods mainly rely on manual labor using sledgehammers, crowbars, or simple pullers. These methods are not only inefficient, consuming significant manpower and time, leading to prolonged wind turbine downtime and substantial power generation losses, but more importantly, they pose serious safety hazards. On one hand, rusted and tightly secured clamps may suddenly release enormous elastic potential energy and fly out like cannonballs, posing a fatal threat to the personal safety of on-site operators. On the other hand, high-intensity hammering operations in confined spaces can easily result in mechanical clamping and impact injuries.

[0003] In existing technologies, such as the wind turbine yaw clamp replacement device disclosed in CN218518609U, the device adopts a platform structure, with the main frame consisting of a first platform, a second platform, and a sliding rod. The clamp is fixed by the T-shaped threaded rod engaging with the bolt holes on the clamp, and the clamp is moved by a motor-driven lifting mechanism. However, this device focuses on the support and lifting of the overall replacement operation, and its pulling or pushing force is fixed in one direction, which cannot achieve multi-angle, adjustable pulling. In addition, it lacks a special protective component to prevent the clamp from splashing during the pulling process. Another example is the device for facilitating the maintenance and disassembly of wind turbine yaw clamps disclosed in CN222162836U. The core of this device is a push-out unit, which includes a clamp tray and a hydraulic lifting part. The caliper tray is connected and fixed to the yaw caliper tooling. The caliper is removed by the lifting action of the hydraulic lifting unit. It aims to solve the problem of uneven caliper position. It mainly applies force from below by hydraulic lifting. The direction of force is basically vertical upward. It also cannot achieve flexible and stepless adjustment of the pulling angle. Utility Model Content

[0004] This utility model provides a wind turbine yaw clamp disassembly device to solve the problems of low operating efficiency, high safety risks and non-adjustable pulling direction of the above-mentioned disassembly devices.

[0005] The present invention achieves the above objectives through the following technical solution: a wind turbine yaw clamp disassembly device, comprising an arc-shaped disassembly frame, a tightening and stretching component movably disposed on the side of the arc-shaped disassembly frame near the clamp, and the tightening and stretching component fixed on the clamp, and a fixing component disposed on the side of the arc-shaped disassembly frame away from the clamp, the fixing component being fixedly connected to an external positioning fulcrum.

[0006] The tightening and stretching assembly includes a U-shaped pull plate, a hand chain hoist, and a strap. The U-shaped pull plate is movably connected to the frame of the arc-shaped dismantling frame. The strap is tied to the clamp. The hand chain hoist is connected between the U-shaped pull plate and the strap. An arc-shaped rack is fixedly connected to the arc-shaped dismantling frame. A drive gear is rotatably connected to the U-shaped pull plate. The arc-shaped rack meshes with the drive gear.

[0007] An angle self-locking adjustment assembly is connected to the U-shaped pull plate. The angle self-locking adjustment assembly includes a transmission worm gear, a drive gear and a transmission worm wheel fixedly connected to the same axis, and the transmission worm gear and the transmission worm wheel are meshed together.

[0008] The upper part of the arc-shaped dismantling frame is also connected to a protective component, which includes a protective net.

[0009] The fixing assembly includes a fixing back plate and multiple U-shaped fasteners, which are fixedly connected to the docking part between the fixing back plate and the external positioning fulcrum.

[0010] As a further embodiment of this utility model: the cross-section of the arc-shaped disassembly frame is U-shaped, and arc-shaped limiting grooves are provided on both sides of the arc-shaped disassembly frame. The arc-shaped rack is fixedly connected to the groove wall of the arc-shaped limiting groove. The two sides of the U-shaped pull plate are placed on the outside of the arc-shaped disassembly frame. A drive rod is rotatably connected between the two sides of the U-shaped pull plate. The rod of the drive rod passes through the arc-shaped limiting groove, and the drive gear is fixedly sleeved on the rod part of the drive rod located in the arc-shaped limiting groove.

[0011] As a further improvement of this utility model: both ends of the upper surface of the arc-shaped disassembly frame are provided with insertion holes, and the protective components are detachably connected in the insertion holes.

[0012] As a further improvement of this utility model, the protective component also includes two protective support rods, the rod bodies of which are fixedly connected to both sides of the protective net, and the bottom ends of the protective support rods are movably inserted into the insertion holes.

[0013] As a further improvement of this utility model: both ends of the U-shaped pull plate are connected to connecting steel ropes, and the straps are connected to tightening steel ropes. The connecting ends of the two connecting steel ropes are fixedly connected to the shell of the hand chain hoist, and the other end of the tightening steel rope is connected to the hook on the extension chain of the hand chain hoist.

[0014] As a further improvement of this utility model: a guide rod is rotatably connected between the two sides of the U-shaped pull plate, and two guide wheels are fixedly sleeved on the rod body of the guide rod. The two guide wheels are respectively in close contact with the frame body of the arc-shaped disassembly frame on the side near the clamp.

[0015] As a further embodiment of this utility model: the angle self-locking adjustment assembly also includes an adjustment housing and an adjustment rod. The adjustment housing is fixedly connected to the U-shaped pull plate. One end of the drive rod is movably disposed inside the adjustment housing. The transmission worm and the transmission worm wheel are both disposed inside the adjustment housing. The transmission worm wheel is fixedly sleeved on the drive rod. A rotating wheel is fixedly connected to one end of the adjustment rod located outside the adjustment housing. The other end of the adjustment rod located inside the adjustment housing is fixedly connected to the transmission worm along the same axis.

[0016] As a further improvement of this utility model, the fixing component also includes several connecting struts, which are fixedly connected between the fixing back plate and the arc-shaped disassembly frame.

[0017] As a further embodiment of this utility model: the U-shaped fastener includes a U-shaped fixing rod and a clamping plate. The two ends of the U-shaped fixing rod are provided with threaded rings, and the two ends of the U-shaped fixing rod can move through the clamping plate. The two ends of the U-shaped fixing rod with threaded rings are threadedly connected with locking nuts.

[0018] The beneficial effects of this utility model are:

[0019] 1. The wind turbine yaw clamp disassembly device provided by this utility model achieves rapid and reliable installation in the wind turbine nacelle through the combination of an arc-shaped disassembly frame and a fixing component. It utilizes a tightening and stretching component consisting of a U-shaped pull plate, a hand-operated hoist, and straps, combined with the meshing transmission of an arc-shaped rack and a drive gear, to achieve stepless continuous adjustment of the pulling angle. This allows the operator to apply the release force from the optimal direction according to the actual jamming situation of the clamp, significantly improving disassembly efficiency. At the same time, the angle self-locking adjustment component consisting of a transmission worm and a transmission worm wheel reliably locks the U-shaped pull plate in any adjustment position by utilizing the self-locking characteristics of the worm wheel and worm, effectively preventing the accidental back movement of the traction component during the application of force, and greatly enhancing the safety of operation.

[0020] 2. The protective component consisting of a protective net and protective support rods installed above the arc-shaped disassembly frame provides an effective physical barrier against the clamps that may suddenly fly out, eliminating the safety threat to personnel and equipment caused by the clamps flying out.

[0021] 3. The U-shaped fixing component in the fixing assembly of this utility model, which includes a U-shaped fixing rod, a clamping plate, and a locking nut, can adapt to external positioning fulcrums of different sizes and shapes and generate huge clamping force through the threaded pair, ensuring the absolute stability of the entire device when subjected to huge pulling force. At the same time, the clamping structure formed by the guide wheel and the drive gear further enhances the smoothness of the movement of the U-shaped pull plate and the overall rigidity. The connecting strut effectively solves the problem of reliable connection and stress distribution between the arc-shaped frame and the flat fixed back plate. Finally, the device as a whole realizes the safe, efficient, labor-saving and reliable disassembly of the wind turbine yaw clamp, significantly shortening the wind turbine downtime and reducing the labor intensity and safety risks of maintenance personnel. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the combined structure of the arc-shaped disassembly frame and the strap of this utility model;

[0024] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A in the middle;

[0025] Figure 4 This is a schematic diagram of the arc-shaped disassembly frame structure of this utility model;

[0026] Figure 5 This utility model Figure 4 Schematic diagram of the structure at point B;

[0027] Figure 6 This is a schematic diagram of the U-shaped fastener structure of this utility model;

[0028] Figure 7 This is a schematic diagram showing the disassembled structure of the U-shaped pull plate, drive rod, and angle self-locking adjustment assembly of this utility model;

[0029] Figure 8 This is a schematic diagram of the drive state structure of the transmission worm gear and transmission worm of this utility model;

[0030] Figure 9 This is a schematic cross-sectional view of the connection between the U-shaped pull plate and the guide rod of this utility model.

[0031] Figure 10 This is a schematic diagram of the connection between the arc-shaped disassembly frame and the U-shaped pull plate of this utility model.

[0032] In the diagram: 1. Arc-shaped disassembly frame; 11. Arc-shaped limiting groove; 12. Arc-shaped rack; 13. Insertion hole; 2. Fixing assembly; 21. Fixing back plate; 22. Connecting support rod; 23. U-shaped fixing rod; 24. Clamping plate; 25. Threaded ring; 26. Locking nut; 3. Protective assembly; 31. Protective support rod; 32. Protective net; 4. U-shaped pull plate; 41. Connecting steel rope; 42. Drive rotating rod; 43. Drive gear; 44. Transmission worm gear; 45. Guide rotating rod; 46. Guide wheel; 5. Angle self-locking adjustment assembly; 51. Adjusting shell; 52. Adjusting rotating rod; 53. Transmission worm gear; 54. Rotating wheel; 6. Hand chain hoist; 7. Tightening steel rope; 8. Binding strap. Detailed Implementation

[0033] 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 protection scope of the present utility model.

[0034] Example 1

[0035] like Figures 1 to 10 As shown, a wind turbine yaw clamp removal device includes an arc-shaped removal frame 1. A tightening and stretching component is movably mounted on the side of the arc-shaped removal frame 1 closest to the clamp and is fixed to the clamp. A fixing component 2 is mounted on the side of the arc-shaped removal frame 1 furthest from the clamp. The fixing component 2 is fixedly connected to an external positioning fulcrum, which provides a fixing point for the removal device. The tightening and stretching component tightens to remove the clamp, greatly improving the removal efficiency of the clamp. Furthermore, this removal device is reusable, simple to operate, and can meet the needs of most yaw clamp removal and replacement work for wind turbines, shortening clamp replacement time and reducing manpower and workload. It also ensures equipment availability and personal safety.

[0036] The tightening and stretching assembly includes a U-shaped pull plate 4, a hand-operated hoist 6, and a strap 8. The U-shaped pull plate 4 is movably connected to the frame of the arc-shaped dismantling frame 1. The strap 8 is tied to the clamp. The hand-operated hoist 6 is connected between the U-shaped pull plate 4 and the strap 8. An arc-shaped rack 12 is fixedly connected to the arc-shaped dismantling frame 1. A drive gear 43 is rotatably connected to the U-shaped pull plate 4. The arc-shaped rack 12 meshes with the drive gear 43, allowing the operator to drive the drive gear 43 to roll along the arc-shaped rack 12. This causes the entire U-shaped pull plate 4 and the hand-operated hoist 6 to continuously and steplessly adjust their position along the arc-shaped path, achieving multi-angle control of the clamp's pulling direction. It can apply a release force to the clamp from multiple angles to facilitate loosening and release. To ensure that the U-shaped pull plate 4 does not shift back due to external force after being adjusted and during the application of force;

[0037] An angle self-locking adjustment component 5 is connected to the U-shaped pull plate 4. The angle self-locking adjustment component 5 includes a transmission worm 53 and a transmission worm wheel 44 coaxially fixedly connected to the drive gear 43. The transmission worm 53 and the transmission worm wheel 44 are meshed and connected. By utilizing the self-locking characteristics of the worm gear transmission, the position of the drive gear 43 is reliably locked. This ensures that the U-shaped pull plate 4 will not shift its position after being moved to different angles. This ensures that a stable disassembly pulling force can be provided at that angle position, while also ensuring construction safety.

[0038] A protective component 3 is also connected above the frame of the arc-shaped dismantling frame 1. The protective component 3 includes a protective net 32, which provides a physical barrier for the clamps that may suddenly fly out, preventing personal injury and equipment damage.

[0039] The fixing assembly 2 includes a fixing back plate 21 and multiple U-shaped fasteners. The multiple U-shaped fasteners are fixedly connected to the docking part of the fixing back plate 21 and the external positioning support. Through the fixing back plate 21 and multiple U-shaped fasteners in the fixing assembly 2, the entire device can be firmly installed on the external positioning support inside the wind turbine nacelle, such as on the cable tray, providing a stable reaction force foundation for the strong pulling force.

[0040] Example 2

[0041] Improvements based on Example 1:

[0042] like Figure 1 , Figure 4 and Figure 5As shown, the cross-section of the arc-shaped dismantling frame 1 is U-shaped. Arc-shaped limiting grooves 11 are provided on both sides of the frame. Arc-shaped rack 12 is fixedly connected to the groove wall of the arc-shaped limiting groove 11. The two sides of the U-shaped pull plate 4 are placed on the outside of the arc-shaped dismantling frame 1. A drive rod 42 is rotatably connected between the two sides of the U-shaped pull plate 4. The rod of the drive rod 42 passes through the arc-shaped limiting groove 11. The drive gear 43 is fixedly sleeved on the rod part of the drive rod 42 located in the arc-shaped limiting groove 11. The arc-shaped rack 12 is fixedly connected to the groove wall of the arc-shaped limiting groove 11, so that the arc-shaped rack 12 becomes U-shaped. The guide rail for the movement of the pull plate 4, the U-shaped pull plate 4 is locked on the outside of the arc-shaped dismantling frame 1 to provide good lateral stability, the drive rod 42 is rotatably connected to the U-shaped pull plate 4, and its rod body passes through the arc-shaped limiting groove 11, while the drive gear 43 is fixedly sleeved on the rod body of the drive rod 42 located in the arc-shaped limiting groove 11, so that the drive gear 43 is constrained in the arc-shaped limiting groove 11 and maintains a meshing relationship with the arc-shaped rack 12. When the drive rod 42 is rotated, the drive gear 43 rolls along the arc-shaped rack 12, thereby driving the entire U-shaped pull plate 4 to move smoothly along the contour of the arc-shaped dismantling frame 1.

[0043] Furthermore, the upper surface of the arc-shaped disassembly frame 1 is provided with insertion holes 13 at both ends. The protective component 3 is detachably connected to the insertion holes 13. The insertion holes 13 ensure that the protective component 3 can be quickly installed and removed. During transportation or storage, the entire protective part can be removed, which significantly reduces the size of the device, making it easy to carry and store, and improving the practicality and portability of the device.

[0044] like Figure 1 As shown, the protective component 3 also includes two protective support rods 31. The rods of the two protective support rods 31 are fixedly connected to both sides of the protective net 32. The bottom ends of the protective support rods 31 are movably inserted into the insertion holes 13. When needed, the protective area can be quickly established by simply aligning the bottom ends of the two protective support rods 31 with the insertion holes 13. The operation is extremely simple. Furthermore, the protective net 32 ​​supported by the protective support rods 31 can effectively cover the potential escape path of the clamp, forming a reliable safety barrier to intercept the clamp that suddenly flies out due to an accident, thus ensuring the safety of the operator.

[0045] like Figure 1 Figure 2 , Figure 3 , Figures 7 to 10As shown, both ends of the U-shaped pull plate 4 are connected to connecting steel ropes 41, and the strap 8 is connected to a tightening steel rope 7. The connecting ends of the two connecting steel ropes 41 are fixedly connected to the shell of the hand chain hoist 6, and the other end of the tightening steel rope 7 is connected to the hook on the extension chain of the hand chain hoist 6. When disassembling the clamp, the pulling force is generated from the extension chain of the hand chain hoist 6 and transmitted to the strap 8 and the clamp through the tightening steel rope 7. The reaction force borne by the shell of the hand chain hoist 6 is evenly transmitted to the U-shaped pull plate 4 through the two connecting steel ropes 41, and finally dissipated at the external fulcrum through the arc-shaped disassembly frame 1 and the fixing component 2. In addition, the use of steel ropes as connectors can withstand the strong tension generated when disassembling the clamp.

[0046] Furthermore, a guide rod 45 is rotatably connected between the two sides of the U-shaped pull plate 4. Two guide wheels 46 are fixedly fitted on the rod of the guide rod 45. The two guide wheels 46 are respectively in close contact with the frame of the arc-shaped disassembly frame 1 near the clamp, so that the guide wheels 46 and the drive gear 43 located in the arc-shaped limiting groove 11 form an inner and outer clamping state on the frame of the arc-shaped disassembly frame 1. The drive gear 43 meshes with the arc-shaped rack 12 from the inside to provide driving force, while the guide wheels 46 tightly abut against the frame of the arc-shaped disassembly frame 1 from the outside, which enhances the overall rigidity and stability of the combination of the U-shaped pull plate 4 and the arc-shaped disassembly frame 1, so that it will not tilt or swing even when subjected to eccentric load or huge pulling force. At the same time, the guide wheels 46 convert the sliding friction with the arc-shaped disassembly frame 1 into rolling friction, making it easier for the operator to adjust the position of the U-shaped pull plate 4, improving the comfort and efficiency of use.

[0047] like Figure 2 , Figure 3 , Figure 7 and Figure 8As shown, the angle self-locking adjustment assembly 5 also includes an adjustment housing 51 and an adjustment rod 52. The adjustment housing 51 is fixedly connected to the U-shaped pull plate 4. One end of the drive rod 42 is movably disposed inside the adjustment housing 51. The transmission worm 53 and the transmission worm wheel 44 are both disposed inside the adjustment housing 51. The transmission worm wheel 44 is fixedly sleeved on the drive rod 42. One end of the adjustment rod 52 located outside the adjustment housing 51 is fixedly connected to a rotating wheel 54. The other end of the adjustment rod 52 located inside the adjustment housing 51 is fixedly connected to the transmission worm 53 along the same axis. The transmission worm 53 and the transmission worm wheel 44 are encapsulated inside the adjustment housing 51, protecting the worm gear pair from external dust and impacts. One end of the drive rod 42 is movably disposed inside the adjustment housing 51, while the transmission worm wheel 44 is fixedly sleeved on the drive rod 42. One end of the adjusting rod 52 located outside the adjusting housing 51 is fixedly connected to a rotating wheel 54 for manual operation, while the other end located inside the adjusting housing 51 is fixedly connected coaxially to the transmission worm gear 53. Rotating the rotating wheel 54 will drive the transmission worm gear 53 to rotate, which in turn drives the intermittently rotating transmission worm wheel 44. The transmission worm wheel 44 drives the driving rod 42 and the driving gear 43 thereon to finally achieve the position adjustment of the U-shaped pull plate 4. That is, by utilizing the self-locking characteristic of the worm gear transmission, after the rotating wheel 54 stops rotating, the transmission worm wheel 44 cannot drive the transmission worm gear 53 in the reverse direction, thereby locking the driving gear 43 firmly in the current position and preventing it from moving due to external pulling force, thus ensuring safe disassembly.

[0048] like Figure 1 and Figure 6 As shown, the fixing component 2 also includes several connecting struts 22, which are fixedly connected between the fixing back plate 21 and the arc-shaped disassembly frame 1. Since the arc-shaped disassembly frame 1 is arc-shaped and the fixing back plate 21 is long and straight, the two need to be connected by connecting struts 22. The connecting struts 22 can be welded together according to the curvature of the arc-shaped disassembly frame 1 and the position of the fixing back plate 21, thereby establishing multiple force transmission paths between the two, dispersing the concentrated load from the arc-shaped disassembly frame 1 to the larger area of ​​the fixing back plate 21, and preventing deformation or damage caused by excessive local stress.

[0049] Furthermore, the U-shaped fastener includes a U-shaped fixing rod 23 and a clamping plate 24. The U-shaped fixing rod 23 has threaded rings 25 at both ends, and both ends of the U-shaped fixing rod 23 movably pass through the clamping plate 24. Locking nuts 26 are threadedly connected to both ends of the U-shaped fixing rod 23 with threaded rings 25. The U-shaped fixing rod 23 is straddled on a cable tray or similar structure serving as an external positioning fulcrum, with the clamping plate 24 positioned on both sides of the fulcrum. Then, the locking nuts 26 at both ends are tightened. As the locking nuts 26 are tightened, the U-shaped fixing rod 23... The clamping plate 24 can be pressed against the surface of the positioning fulcrum, generating a huge mechanical clamping force through the threaded pair, thereby firmly fixing the entire disassembly device to the fulcrum. It can adapt to positioning fulcrums of different thicknesses and shapes. Secondly, the preload provided by the threaded connection is sufficient to resist the huge reaction force generated when disassembling the clamp, preventing the device from slipping or falling off. Moreover, the fixing can be completed simply by tightening the nut with a wrench, without the need for destructive operations such as welding or drilling on site, which improves work efficiency and meets the needs of rapid maintenance on wind power sites.

[0050] Working principle: First, the operator transports the device to the work station in the wind turbine nacelle where the yaw clamp needs to be replaced. A stable external positioning support point, such as a cable tray, is selected as the installation base. If the cable tray is too low, channel steel or square timber can be installed on the cable tray as a support point to ensure that the installation position of the device is at the same height as the clamp to be disassembled. The fixing back plate 21 is attached to the surface of the support point. Then, multiple U-shaped fasteners are used to straddle the support point like riding a horse. By tightening the locking nut 26, a huge mechanical clamping force is generated, thereby firmly fixing the entire disassembly device.

[0051] After the device is fixed, the operator tightly binds the strap 8 to the clamp to be removed and adjusts the traction direction of the tightening and tensioning component according to the position of the clamp. This allows for multi-directional and multi-angle traction, making the clamp easier to loosen. During adjustment, the operator rotates the rotating wheel 54 of the angle self-locking adjustment component 5, which drives the adjusting rod 52 and the transmission worm gear 53 fixed on the same axis to rotate. The transmission worm gear 53 drives the transmission worm wheel 44, which meshes with it, to rotate. Since the transmission worm wheel 44 is fixedly connected to the drive gear 43 on the same axis and drives... Gear 43 meshes with arc rack 12 fixedly installed on the wall of arc limit groove 11 of arc disassembly frame 1. Therefore, drive gear 43 will roll along arc rack 12, thereby driving the entire U-shaped pull plate 4 to move smoothly along the preset arc trajectory of arc disassembly frame 1. In order to further improve the smoothness of movement and overall rigidity of U-shaped pull plate 4, guide wheel 46 sleeved on guide rod 45 rotatably connected between its two sides is always in close contact with the frame body of arc disassembly frame 1 near the clamp, forming an inner and outer clamping state with drive gear 43.

[0052] After the angle adjustment is completed, the operator begins to operate the chain hoist 6. When the chain of the chain hoist 6 is pulled, the strong pulling force acts on the clamp through the tightening steel rope 7 and the binding strap 8, forcing it to disengage from the installation position. The reaction force generated by this pulling force is transmitted to the external positioning fulcrum through the housing of the chain hoist 6, the connecting steel rope 41, the U-shaped pull plate 4, the meshing pair of the drive gear 43 and the arc rack 12, the arc-shaped dismantling frame 1, the connecting support rod 22, and the fixed back plate 21. Throughout the pulling process, the protective component 3 provides safety assurance. It is located in front of the potential disengagement path of the clamp. Once the clamp suddenly loosens and flies out under the huge pulling force, the protective net 32 ​​can effectively intercept and block it, preventing it from hitting personnel or equipment and ensuring operational safety.

[0053] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wind turbine yaw clamp disassembly device, comprising an arc-shaped disassembly frame (1), characterized in that: The arc-shaped disassembly frame (1) has a tightening and stretching component movably arranged on the side near the clamp, and the tightening and stretching component is fixed on the clamp. The arc-shaped disassembly frame (1) has a fixing component (2) arranged on the side away from the clamp, and the fixing component (2) is fixedly connected to an external positioning fulcrum. The tightening and stretching assembly includes a U-shaped pull plate (4), a hand chain hoist (6), and a strap (8). The U-shaped pull plate (4) is movably connected to the frame of the arc-shaped dismantling frame (1). The strap (8) is tied to the clamp. The hand chain hoist (6) is connected between the U-shaped pull plate (4) and the strap (8). An arc-shaped rack (12) is fixedly connected to the arc-shaped dismantling frame (1). A drive gear (43) is rotatably connected to the U-shaped pull plate (4). The arc-shaped rack (12) meshes with the drive gear (43). An angle self-locking adjustment assembly (5) is connected to the U-shaped pull plate (4). The angle self-locking adjustment assembly (5) includes a transmission worm (53). The drive gear (43) is coaxially fixedly connected to a transmission worm wheel (44). The transmission worm (53) and the transmission worm wheel (44) are meshed together. The arc-shaped disassembly frame (1) is also connected to a protective component (3) above the frame body, the protective component (3) including a protective net (32). The fixing component (2) includes a fixing back plate (21) and a plurality of U-shaped fasteners, which are fixedly connected to the docking part between the fixing back plate (21) and the external positioning fulcrum.

2. The wind turbine yaw clamp disassembly device according to claim 1, characterized in that: The arc-shaped disassembly frame (1) has a U-shaped cross-section. Arc-shaped limiting grooves (11) are provided on both sides of the arc-shaped disassembly frame (1). The arc-shaped rack (12) is fixedly connected to the groove wall of the arc-shaped limiting groove (11). The two sides of the U-shaped pull plate (4) are placed on the outside of the arc-shaped disassembly frame (1). A drive rod (42) is rotatably connected between the two sides of the U-shaped pull plate (4). The rod of the drive rod (42) passes through the arc-shaped limiting groove (11). The drive gear (43) is fixedly sleeved on the rod part of the drive rod (42) located in the arc-shaped limiting groove (11).

3. The wind turbine yaw clamp disassembly device according to claim 1, characterized in that: The arc-shaped disassembly frame (1) has insertion holes (13) at both ends on the upper surface of the frame, and the protective component (3) is detachably connected in the insertion holes (13).

4. The wind turbine yaw clamp disassembly device according to claim 3, characterized in that: The protective component (3) also includes two protective support rods (31), the rods of which are fixedly connected to both sides of the protective net (32), and the bottom end of the protective support rod (31) is movably inserted into the insertion hole (13).

5. The wind turbine yaw clamp disassembly device according to claim 1, characterized in that: Both ends of the U-shaped pull plate (4) are connected to the connecting steel rope (41), and the strap (8) is connected to the tightening steel rope (7). The connecting ends of the two connecting steel ropes (41) are fixedly connected to the shell of the hand chain hoist (6), and the other end of the tightening steel rope (7) is connected to the hook on the stretching chain of the hand chain hoist (6).

6. The wind turbine yaw clamp disassembly device according to claim 1, characterized in that: A guide rod (45) is rotatably connected between the two sides of the U-shaped pull plate (4). Two guide wheels (46) are fixedly sleeved on the rod of the guide rod (45). The two guide wheels (46) are respectively close to the frame of the arc-shaped disassembly frame (1) on the side near the clamp.

7. The wind turbine yaw clamp disassembly device according to claim 2, characterized in that: The angle self-locking adjustment assembly (5) also includes an adjustment housing (51) and an adjustment rod (52). The adjustment housing (51) is fixedly connected to the U-shaped pull plate (4). One end of the drive rod (42) is movably disposed inside the adjustment housing (51). The transmission worm (53) and the transmission worm wheel (44) are both disposed inside the adjustment housing (51). The transmission worm wheel (44) is fixedly sleeved on the drive rod (42). One end of the adjustment rod (52) located outside the adjustment housing (51) is fixedly connected to a rotating wheel (54). One end of the adjustment rod (52) located inside the adjustment housing (51) is fixedly connected to the transmission worm (53) along the same axis.

8. The wind turbine yaw clamp disassembly device according to claim 1, characterized in that: The fixing component (2) also includes several connecting struts (22), which are fixedly connected between the fixing back plate (21) and the arc-shaped disassembly frame (1).

9. The wind turbine yaw clamp disassembly device according to claim 1, characterized in that: The U-shaped fastener includes a U-shaped fixing rod (23) and a clamping plate (24). The two ends of the U-shaped fixing rod (23) are provided with threaded rings (25), and the two ends of the U-shaped fixing rod (23) can move through the clamping plate (24). The two ends of the threaded rings (25) of the U-shaped fixing rod (23) are threadedly connected with locking nuts (26).

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