Fractured screw dismounting tool

Abstract

The utility model relates to a fractured screw disassembling tool which is used for taking out a fractured screw of a wind turbine generator blade and comprises a drilling device and a fractured screw taking-out device. The drilling device comprises a fixing mechanism, a guiding mechanism and a drilling mechanism. Wherein the fixing mechanism is used for being fixed near a hole position where the broken screw is located; the guide mechanism comprises a guide shaft connected with the fixing mechanism; the drilling mechanism comprises a sliding frame slidably arranged on the guide shaft in a sleeving mode and a drilling assembly connected with the sliding frame, the drilling assembly is used for installing a drill bit and driving the drill bit to rotate, and the drilling assembly can slide in the axial direction of the guide shaft along with the sliding frame. And the drill bit is used for drilling a threaded hole in the end part of the broken screw rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power blade frock technical field especially, and it is a kind of broken screw rod dismount frock. BACKGROUND

[0002] With the increasing demand for renewable energy worldwide, wind power generation technology has been rapidly developed. Wind turbine as the core equipment of wind power generation, its performance and reliability directly affect the power generation efficiency and safety of the entire wind farm. The blade of wind turbine is connected with variable pitch bearing through high-strength screw rod. These screw rods may be broken due to fatigue, material defects or external factors during long-term operation, especially the fracture on the nut side.

[0003] At present, there is no special tool for taking out the high-strength connecting screw rod of wind turbine blade to variable pitch bearing on the nut side. Although the traditional welding method is simple and practical, there are great safety hazards in welding operation in limited space, such as suffocation, poisoning or fire risk. Therefore, it is urgent to develop a special tool to improve the efficiency of screw rod taking out, reduce the operation risk and ensure the safe operation of wind turbine.

[0004] The above information disclosed in the background of the present application is only for understanding the background of the present application concept, and does not indicate or imply that it contains prior art information. INVENTION CONTENTS

[0005] Therefore, it is necessary to provide a broken screw rod dismount frock for the above problems.

[0006] A broken screw rod dismount frock for taking out the broken screw rod of wind turbine blade, comprising a drilling device, the drilling device comprising:

[0007] A fixing mechanism for fixing near the hole position of the broken screw rod;

[0008] A guide mechanism comprising a guide shaft connected with the fixing mechanism;

[0009] A drilling mechanism comprising a sliding frame slidably sleeved on the guide shaft and a drilling assembly connected with the sliding frame, the drilling assembly is used for installing drill bit and rotating the drill bit, and the drilling assembly can slide along the axial direction of the guide shaft with the sliding frame, so that the drill bit can drill a threaded hole at the end of the broken screw rod.

[0010] The broken screw dismounting tool has at least the following beneficial effects: the tool is stably installed near the hole position of the broken screw by the fixing mechanism, ensuring the stability and safety of the operation process, and avoiding deviation and vibration during drilling. The guide shaft in the guide mechanism provides an accurate path, allowing the drilling mechanism to slide along the predetermined axis, thereby improving the accuracy of drilling and simplifying the operation steps. The drilling mechanism is flexible and can be replaced with different sizes of drill bits according to actual needs, such as φ5, φ8, φ10, φ12 type cobalt-containing drills for step-by-step drilling, allowing precise threaded holes to be drilled at the end of the broken screw, providing the necessary conditions for using broken wire extractors and other tools, and significantly improving the success rate of broken screw removal. After the threaded hole is drilled at the end of the broken screw, the broken wire extractor and other tools can be used to extend into the threaded hole to fix the broken screw, and then the broken screw is removed. In addition, the tool structure is highly adaptable and can adapt to broken screws of different sizes and lengths, has wide applicability, and meets the needs of different wind turbine blade maintenance. By drilling a threaded hole at the end of the broken screw and using the extraction tool for fixation and removal, the destructive operation in the traditional method is reduced, the risk of damage to the blade and surrounding structure is reduced, and the overall maintenance efficiency and safety are improved.

[0011] In some embodiments, the fixing mechanism includes a base plate, a support, and a clamping assembly. One end of the support is connected to the base plate, and the other end of the support is connected to the clamping assembly. The clamping assembly, the support, and the base plate form a clamping opening. The guide shaft is connected to the side of the base plate opposite the clamping opening. The clamping opening is used to clamp the vicinity of the hole position of the broken screw. The clamping assembly is designed to adjust the distance between the clamping assembly and the base plate to adjust the size of the clamping opening. The guide shaft is arranged on the back of the base plate, which does not interfere with the operation of the clamping opening, and provides a stable guide path to ensure the accuracy of drilling. The design of the clamping assembly allows the distance between the clamping assembly and the base plate to be adjusted, which means that the size of the clamping opening can be adjusted according to actual needs, thereby adapting to broken screws of different sizes. This adjustability not only improves the applicability of the device, but also enhances its flexibility and practicality in various maintenance scenarios.

[0012] In some embodiments, the clamping assembly includes an adjusting member and a clamping plate facing the base plate, and the base plate, the support, and the clamping plate form the clamping opening. One end of the adjusting member is connected to the side of the clamping plate away from the base plate, and the other end of the adjusting member is threaded through the support and connected with the support. The adjusting member is arranged to be able to rotate relative to the support under external force, and to drive the clamping plate to move closer to or away from the base plate to adjust the size of the clamping opening. One end of the adjusting member is connected to the side of the clamping plate away from the base plate, and the other end is threaded through the support and connected with the support. This structure allows the adjusting member to rotate relative to the support under external force. By rotating the adjusting member, the position of the clamping plate can be precisely controlled to move closer to or away from the base plate, thereby adjusting the size of the clamping opening. This adjustment mechanism provides flexibility, which can adapt to different sizes of broken screws and hole positions, ensuring the stability and safety of clamping. This design not only improves the applicability of the tooling, but also simplifies the operation steps, making the application in different scenarios more efficient and reliable.

[0013] In some embodiments, the number of clamping assemblies and supports is set to multiple and one-to-one correspondence.

[0014] In some embodiments, the fixing mechanism further includes a handrail connected with the base plate. The main function of the handrail is to provide an additional support point for the operator, making it more stable and convenient when adjusting the clamping assembly or performing other operations. By holding the handrail, the operator can better control the entire device, reducing the risk of deviation or instability due to improper operation. In addition, the handrail can also provide assistance during the movement and installation of the device. The operator can use the handrail to more easily carry and position the device, especially in situations that require frequent movement or operation in limited space. Overall, the addition of the handrail not only improves the operation comfort of the device, but also enhances the safety and efficiency during use.

[0015] In some embodiments, the guiding mechanism further comprises a resilient member sleeved on the outer circumferential surface of the guiding shaft, one end of the resilient member elastically abuts against the base plate, and the other end of the resilient member elastically abuts against the sliding frame. The design of the guiding mechanism adds a resilient member sleeved on the outer circumferential surface of the guiding shaft. One end of the resilient member elastically abuts against the base plate, and the other end elastically abuts against the sliding frame. This design provides additional cushioning and stability. When the sliding frame moves along the guiding shaft, the resilient member can absorb part of the kinetic energy, reducing the impact force, thereby protecting the internal structure of the device from damage. In addition, the resilient member also provides a restoring force, so that the sliding frame automatically returns to the initial position after the external force disappears, which is very useful for operations that need to be frequently reset, and can improve operation efficiency. During the operation of the device, the resilient member can effectively reduce vibration, improve the stability and working precision of the device. At the same time, by applying an elastic abutting force between the base plate and the sliding frame, the stability of the entire structure is improved, and the positioning error caused by looseness or instability is reduced. Such a design fully considers the dynamic characteristics of the mechanical structure and the actual use requirements, enhances the reliability and durability of the device, and also improves the user's operation experience.

[0016] In some embodiments, the guiding shaft is provided with a limiting portion at the end away from the base plate, the sliding frame is provided with a sliding hole, the sliding frame is slidably sleeved on the outer circumferential surface of the guiding shaft through the sliding hole, the size of the limiting portion is greater than the size of the sliding hole, and the limiting portion is located on the side of the sliding frame away from the resilient member and used to abut against the sliding frame to limit the sliding of the sliding frame in the direction away from the base plate. The design of the guiding shaft is provided with a limiting portion at the end away from the base plate. The sliding frame is provided with a sliding hole, and the sliding frame is slidably sleeved on the outer circumferential surface of the guiding shaft through the sliding hole. The size of the limiting portion is greater than the size of the sliding hole, which ensures that the limiting portion can effectively abut against the sliding frame, thereby limiting the sliding of the sliding frame in the direction away from the base plate. The limiting portion is located on the side of the sliding frame away from the resilient member, which makes the sliding frame not exceed the predetermined movement range when subjected to external force or operation, thereby preventing the sliding frame from disengaging from the guiding shaft. This design not only enhances the safety and reliability of the device, but also ensures the stable operation of the sliding frame on the guiding shaft, which helps to maintain the overall performance and precision of the system.

[0017] In some embodiments, the number of guiding shafts and the number of resilient members are both multiple and one-to-one corresponding. This means that each guiding shaft is provided with a corresponding resilient member. This configuration can provide more uniform support and stability, ensuring that the sliding frame is evenly stressed during movement and is not prone to tilting or deviation. The combination of multiple guiding shafts and resilient members can effectively distribute the load, so that the system can still run smoothly when subjected to a large load.

[0018] In some embodiments, the guide shafts and the sliding holes are both provided in multiple and one-to-one correspondence. The combination of multiple guide shafts and sliding holes can effectively disperse the load, so that the system can still run smoothly when bearing a larger load. This design can improve the anti-vibration ability of the device, because multiple contact points can more effectively absorb and alleviate vibrations, reducing the impact on the overall structure. Through this multiple configuration, the durability and reliability of the device are further improved, while the smoothness and precision of operation are also improved. This is particularly important for application scenarios that require high precision and stability, and can meet more complex and demanding use requirements.

[0019] In some embodiments, the drilling assembly includes a driving member and a mounting portion, a rotating hole is provided on the sliding frame, the output shaft of the driving member is rotatably penetrated through the rotating hole, and the end of the output shaft is connected with the mounting portion, which is used for mounting the drill bit and driving the drill bit to rotate. The sliding frame is provided with a rotating hole, and the output shaft of the driving member can rotatably penetrate through the rotating hole. This design allows the output shaft to rotate freely on the sliding frame, thereby transmitting the power of the driving member to the mounting portion. The end of the output shaft is connected with the mounting portion, and the mounting portion is used for mounting the drill bit. Through this connection mode, the driving member can directly drive the drill bit to rotate, thereby realizing the function of drilling. This design ensures the effective transmission of power, so that the drill bit can rotate at a stable speed and force. In addition, this structural design helps to improve the precision and efficiency of the overall system. The driving member directly drives the drill bit through the output shaft, reducing the energy loss of intermediate links and also reducing the possibility of mechanical failure. The rotating hole is provided so that the output shaft can flexibly adapt to different operation angles and positions, improving the adaptability and flexibility of the device.

[0020] In some embodiments, the driving member is an electric wrench.

[0021] In some embodiments, the broken screw dismounting tool further comprises a broken screw extractor, which includes an operating part and an extraction part connected to the operating part, and the operating part is used to drive the extraction part to screw into the threaded hole to extract the broken screw. The operating part is used to control the entire extraction process, and by applying external force or manual operation, the movement of the extraction part can be effectively controlled. The extraction part is connected to the operating part, and the design purpose is to be able to screw into the threaded hole to grab and remove the broken screw. When the operating part applies a rotating force, the extraction part will gradually screw into the threaded hole and form a tight contact or engagement with the broken screw, thereby achieving the grabbing of the screw. The advantage of this design is that it can efficiently remove the broken screw in the threaded hole, especially in cases where conventional methods are difficult to work. Through precise operation, the broken screw extractor can reduce damage to the surrounding threaded holes, ensuring that the threaded holes can still be used normally after the broken screw is removed. In addition, this design improves the versatility and adaptability of the dismounting tool, which can be applied to threaded holes and broken screws of different specifications and sizes, providing convenience for maintenance and repair work. This tool plays an important role in mechanical repair, equipment maintenance and various occasions where broken screws need to be dismounted.

[0022] In some embodiments, the extraction part is conical and the outer peripheral surface is formed with threads. The conical design has a guiding effect, which can automatically center the extraction part when it enters the threaded hole, reducing the difficulty and accuracy requirements of the operation. At the same time, this shape helps to use in threaded holes of different sizes, improving the applicability of the tool. With the rotation of the operating part, the threads of the conical extraction part generate a clamping force with the inner wall of the threaded hole, thereby firmly grabbing the broken screw. This design takes advantage of the self-locking property of the threads to ensure that the extraction part can stably grab the broken screw and gradually rotate it out when a rotating force is applied. Overall, this design provides an efficient and reliable solution for removing broken screws in threaded holes by combining conical structure and outer threads. This is very useful in the field of mechanical repair, equipment maintenance, etc., which helps to improve work efficiency and success rate.

[0023] In some embodiments, the connection between the operating part and the extraction part is integrally formed or welded.

[0024] In some embodiments, the operation part is a nut, and the handle is arranged on the nut to drive the rotation of the operation part and the extraction part connected thereto. The design of the nut makes it convenient to be combined with the handle, and the rotation of the handle drives the rotation of the entire operation part and the extraction part connected thereto. The handle can be arranged on the nut to provide an interface convenient for force application and operation. When the handle rotates, it drives the nut to rotate, and the rotation of the nut further drives the extraction part to be screwed into the threaded hole. This design utilizes the mechanical advantages of the nut and the thread, making the operation more labor-saving and efficient, and the electric wrench mentioned in the application can also be selected to drive the movement of the nut operation part. In this way, the operator can more easily control the movement of the extraction part, ensuring that it can accurately screw into the threaded hole and effectively engage with the broken screw rod, thereby smoothly extracting it. This design not only improves the convenience of operation, but also enhances the stability and safety of the entire disassembly process. In addition, the design of using a nut as the operation part has high universality and can adapt to different sizes and types of handles, with high flexibility. This makes the tooling widely applicable in various maintenance and disassembly tasks, providing a reliable solution for users. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 A structural schematic view of a drilling device of a broken screw disassembly tooling is provided for an embodiment of the present application.

[0027] Figure 2 A partial explosion schematic view of a drilling device of a broken screw disassembly tooling is provided for an embodiment of the present application.

[0028] Figure 3 A side view of a drilling device of a broken screw disassembly tooling in use is provided for an embodiment of the present application.

[0029] Figure 4 A structural schematic view of a broken screw disassembly tooling is provided for an embodiment of the present application. Figure 3 A sectional view of a drilling device of a broken screw disassembly tooling in use is provided for an embodiment of the present application.

[0030] Figure 5 A structural schematic view of a broken screw disassembly tooling is provided for an embodiment of the present application.

[0031] Figure 6 A structure schematic view of the broken wire extractor provided by one embodiment of the utility model.

[0032] Reference signs:

[0033] 10, drilling device; 20, broken wire extractor; 30, drill bit; 40, broken screw; 41, threaded hole;

[0034] 100, fixing mechanism; 110, base plate; 120, support; 130, clamping assembly; 131, adjusting piece; 132, clamping plate; 133, clamping opening; 140, handrail; 200, guiding mechanism; 210, guiding shaft; 211, limiting part; 220, elastic piece; 300, drilling mechanism; 310, sliding frame; 311, sliding hole; 312, rotating hole; 320, drilling assembly; 321, driving piece; 322, output shaft; 323, mounting part; 400, operating part; 500, taking-out part. DETAILED DESCRIPTION

[0035] In order to make the above object, features and advantages of the utility model more apparent, clear and understandable, the specific embodiments of the utility model will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0036] Please refer to Figures 1 to 6 In some embodiments, the application provides a broken screw 40 dismounting tool for taking out the broken screw 40 of a wind turbine blade, which comprises a drilling device 10 and a broken wire extractor 20. The drilling device 10 comprises a fixing mechanism 100, a guiding mechanism 200 and a drilling mechanism 300. The fixing mechanism 100 is used for being fixed near the hole position of the broken screw 40; the guiding mechanism 200 comprises a guiding shaft 210 connected with the fixing mechanism 100; the drilling mechanism 300 comprises a sliding frame 310 slidably sleeved on the guiding shaft 210 and a drilling assembly 320 connected with the sliding frame 310, the drilling assembly 320 is used for mounting a drill bit 30 and driving the drill bit 30 to rotate, and the drilling assembly 320 can slide along the axial direction of the guiding shaft 210 with the sliding frame 310, so that the drill bit 30 punches a threaded hole 41 at the end of the broken screw 40.

[0037] The above-mentioned broken screw 40 dismounting tool can at least achieve the following beneficial effects: the tool is stably installed near the hole position of the broken screw 40 by the fixing mechanism 100, ensuring the stability and safety of the operation process, and avoiding deviation and vibration during drilling. The guide shaft 210 in the guide mechanism 200 provides an accurate path, enabling the drilling mechanism 300 to slide along the predetermined axis, thereby improving the accuracy of drilling and simplifying the operation steps. The drilling mechanism 300 is designed flexibly, allowing different sizes of drill bits 30 to be replaced according to actual needs, such as φ5, φ8, φ10, φ12 type cobalt-containing drills for step-by-step drilling, allowing precise thread holes 41 to be drilled at the end of the broken screw 40, providing the necessary conditions for using tools such as the broken wire extractor 20, and significantly improving the success rate of removing the broken screw 40. After drilling the thread hole 41 at the end of the broken screw 40, tools such as the broken wire extractor 20 can be used to extend into the thread hole 41 to fix the broken screw 40, and then the broken screw 40 can be removed. In addition, the tool structure is highly adaptable and can adapt to the broken screw of different sizes and lengths, has wide applicability, and meets the needs of different wind turbine blade maintenance. By drilling thread holes 41 at the end of the broken screw 40 and using removal tools for fixation and removal, the destructive operation in the traditional method is reduced, the risk of damage to the blade and surrounding structure is reduced, and the overall maintenance efficiency and safety are improved.

[0038] Specifically, as shown in Figure 1 , Figure 3 and Figure 4 , in some embodiments, the fixing mechanism 100 includes a chassis 110, a bracket 120, and a clamping assembly 130, one end of the bracket 120 is connected to the chassis 110, the other end of the bracket 120 is connected to the clamping assembly 130, the clamping assembly 130 and the bracket 120, the chassis 110 form a clamping opening 133, the guide shaft 210 is connected to the side of the chassis 110 away from the clamping opening 133, the clamping opening 133 is used to clamp the vicinity of the hole position of the broken screw 40, and the clamping assembly 130 is arranged to be able to adjust the distance between the clamping assembly 130 and the chassis 110 to adjust the size of the clamping opening 133. The guide shaft 210 is arranged on the back of the chassis 110, so as not to interfere with the operation of the clamping opening 133, while providing a stable guide path to ensure the accuracy of drilling. The design of the clamping assembly 130 allows the distance between the clamping assembly 130 and the chassis 110 to be adjusted, which means that the size of the clamping opening 133 can be adjusted according to actual needs, thereby adapting to the broken screw of different sizes. This adjustability not only improves the applicability of the device, but also enhances its flexibility and practicality in various maintenance scenarios.

[0039] More specifically, as shown in Figure 1As shown, in some embodiments, the clamping assembly 130 includes an adjusting piece 131 and a clamping plate 132 facing the base plate 110. The base plate 110, together with the support 120 and the clamping plate 132, forms the clamping opening 133. One end of the adjusting piece 131 is connected to the side of the clamping plate 132 away from the base plate 110, and the other end of the adjusting piece 131 is threaded through the support 120 and connected with it. The adjusting piece 131 is designed to rotate relative to the support 120 under external force, and to drive the clamping plate 132 to move closer to or away from the base plate 110 to adjust the size of the clamping opening 133. One end of the adjusting piece 131 is connected to the side of the clamping plate 132 away from the base plate 110, and the other end is threaded through the support 120 and connected with it. This structure allows the adjusting piece 131 to rotate relative to the support 120 under external force. By rotating the adjusting piece 131, the position of the clamping plate 132 can be precisely controlled to move closer to or away from the base plate 110, thereby adjusting the size of the clamping opening 133. This adjustment mechanism provides flexibility to adapt to different sizes of broken screw rods 40 and hole positions, ensuring the stability and safety of clamping. This design not only improves the applicability of the tooling, but also simplifies the operation steps, making the application in different scenarios more efficient and reliable.

[0040] More specifically, as shown in some embodiments, the clamping assembly 130 is provided in multiple numbers and corresponds one-to-one with the support 120. Figure 1

[0041] More specifically, as shown in some embodiments, the clamping assembly 130 is provided in multiple numbers and corresponds one-to-one with the support 120. Figure 1

[0042] Please refer to Figure 1 ​​In some embodiments, the guiding mechanism 200 further comprises a resilient member 220 sleeved on the outer circumferential surface of the guiding shaft 210, one end of the resilient member 220 being in resilient abutment with the base plate 110, and the other end of the resilient member 220 being in resilient abutment with the sliding frame 310. The guiding mechanism 200 is designed with a resilient member 220 sleeved on the outer circumferential surface of the guiding shaft 210. One end of the resilient member 220 is in resilient abutment with the base plate 110, and the other end of the resilient member 220 is in resilient abutment with the sliding frame 310. This design provides additional buffering and stabilizing functions. When the sliding frame 310 moves along the guiding shaft 210, the resilient member 220 can absorb part of the kinetic energy and reduce the impact force, thereby protecting the internal structure of the device from damage. In addition, the resilient member 220 also provides a restoring force, so that the sliding frame 310 automatically returns to the initial position after the external force disappears, which is very useful for operations that need to be frequently reset, and can improve the operation efficiency. During the operation of the device, the resilient member 220 can effectively reduce the vibration and improve the stability and working precision of the device. At the same time, by applying a resilient abutment force between the base plate 110 and the sliding frame 310, the stability of the entire structure is improved, and the positioning error caused by looseness or instability is reduced. Such a design fully considers the dynamic characteristics of the mechanical structure and the actual use requirements, enhances the reliability and durability of the device, and also improves the user's operation experience.

[0043] Specifically, as Figure 2As shown, in some embodiments, the guide shaft 210 is provided with a limiting portion 211 at one end away from the chassis 110, and the sliding frame 310 is provided with a sliding hole 311 through which the sliding frame 310 is slidably sleeved on the outer circumferential surface of the guide shaft 210. The limiting portion 211 is larger in size than the sliding hole 311, and is located on the side of the sliding frame 310 away from the elastic member 220 and used to abut against the sliding frame 310 to limit the sliding of the sliding frame 310 in the direction away from the chassis 110. The guide shaft 210 is designed to have a limiting portion 211 at one end away from the chassis 110. The sliding frame 310 is provided with a sliding hole 311 through which the sliding frame 310 is slidably sleeved on the outer circumferential surface of the guide shaft 210. The limiting portion 211 is larger in size than the sliding hole 311, which ensures that the limiting portion 211 can effectively abut against the sliding frame 310, thereby limiting the sliding of the sliding frame 310 in the direction away from the chassis 110. The limiting portion 211 is located on the side of the sliding frame 310 away from the elastic member 220, which arrangement prevents the sliding frame 310 from exceeding the predetermined range of motion when subjected to external forces or operations, thereby preventing the sliding frame 310 from disengaging from the guide shaft 210. This design not only enhances the safety and reliability of the device, but also ensures the stable operation of the sliding frame 310 on the guide shaft 210, which helps to maintain the overall performance and precision of the system.

[0044] Specifically, in some embodiments, the number of guide shafts 210 and elastic members 220 is set to be multiple and one-to-one correspondence. This means that each guide shaft 210 is equipped with a corresponding elastic member 220. This configuration can provide more uniform support and stability, ensuring that the sliding frame 310 is evenly stressed during movement and is not prone to tilting or deviation. The combination of multiple guide shafts 210 and elastic members 220 can effectively distribute the load, allowing the system to remain stable even under heavy loads.

[0045] Specifically, in some embodiments, the number of guide shafts 210 and sliding holes 311 is set to be multiple and one-to-one correspondence. The combination of multiple guide shafts 210 and sliding holes 311 can effectively distribute the load, allowing the system to remain stable even under heavy loads. This design can improve the anti-vibration capability of the device, as multiple contact points can more effectively absorb and alleviate vibrations, reducing the impact on the overall structure. Through this multiple configuration, the durability and reliability of the device are further improved, while the smoothness and precision of the operation are also improved. This is particularly important for application scenarios that require high precision and stability, and can meet more complex and demanding use requirements.

[0046] Please refer to Figure 1 and Figure 2In some embodiments, the drilling assembly 320 includes a driving member 321 and a mounting portion 323. The sliding frame 310 has a rotating hole 312. The output shaft 322 of the driving member 321 is rotatably inserted into the rotating hole 312. The end of the output shaft 322 is connected to the mounting portion 323, which is used to mount and rotate the drill bit 30. The driving member 321 can include, but is not limited to, an electric wrench. The sliding frame 310 has a rotating hole 312, and the output shaft 322 of the driving member 321 can be rotatably inserted into the rotating hole 312. This design allows the output shaft 322 to rotate freely on the sliding frame 310, thereby transmitting power from the driving member 321 to the mounting portion 323. The end of the output shaft 322 is connected to the mounting portion 323, which is used to mount the drill bit 30. Through this connection, the driving member 321 can directly drive the drill bit 30 to rotate, thereby achieving the function of drilling. This design ensures effective power transmission, allowing the drill bit 30 to rotate at a stable speed and force. In addition, this structural design helps to improve the accuracy and efficiency of the overall system. The driving member 321 directly drives the drill bit 30 through the output shaft 322, reducing energy loss in intermediate links and also reducing the possibility of mechanical failure. The rotating hole 312 allows the output shaft 322 to flexibly adapt to different operating angles and positions, improving the adaptability and flexibility of the device.

[0047] Please refer to Figure 5 and Figure 6In some embodiments, the broken screw 40 dismounting tool further comprises a broken screw extractor 20, which includes an operating part 400 and an extraction part 500 connected to the operating part 400, and the operating part 400 is used to drive the extraction part 500 to screw into the threaded hole 41 to extract the broken screw 40. The operating part 400 is used to control the entire extraction process, and by applying external force or manual operation, the movement of the extraction part 500 can be effectively controlled. The extraction part 500 is connected to the operating part 400, and its design purpose is to be screwed into the threaded hole 41 to grab and remove the broken screw. When the operating part 400 applies a rotating force, the extraction part 500 will gradually screw into the threaded hole 41 and form a tight contact or engagement with the broken screw, thereby achieving the grabbing of the screw. The advantage of this design is that it can efficiently remove the broken screw in the threaded hole 41, especially in situations where conventional methods are ineffective. Through precise operation, the broken screw extractor 20 can reduce damage to the surrounding threaded holes 41, ensuring that the threaded holes 41 can still be used normally after removing the broken screw 40. In addition, this design improves the versatility and adaptability of the dismounting tool, which can be applied to threaded holes 41 and broken screws 40 of different specifications and sizes, providing convenience for maintenance and repair work. This tool plays an important role in mechanical repair, equipment maintenance, and various situations where broken screws 40 need to be removed.

[0048] Specifically, as shown in Figure 5 and Figure 6 In some embodiments, the extraction part 500 is conical and has threads on the outer circumferential surface. The conical design has a guiding effect, allowing the extraction part 500 to automatically center when entering the threaded hole 41, reducing the difficulty and precision requirements of the operation. At the same time, this shape helps to be used in threaded holes 41 of different sizes, improving the applicability of the tool. With the rotation of the operating part 400, the threads of the conical extraction part 500 generate a clamping force with the inner wall of the threaded hole 41, thereby firmly grabbing the broken screw. This design takes advantage of the self-locking property of the threads, ensuring that the extraction part 500 can stably grab the broken screw 40 and gradually rotate it out when a rotating force is applied. Overall, this design provides an efficient and reliable solution for removing broken screws in threaded holes 41 by combining conical structure and external threads. This is very practical in the field of mechanical repair, equipment maintenance, etc., and helps to improve work efficiency and success rate.

[0049] Specifically, as shown in Figure 5 and Figure 6 In some embodiments, the connection between the operating part 400 and the extraction part 500 is integrally formed or welded.

[0050] Specifically, asFigure 5 and Figure 6 As shown in FIG. 13, in some embodiments, the operation part 400 is a nut, which is used to cover the handle to drive the rotation of the operation part 400 and the extraction part 500 connected thereto. The design of the nut makes it convenient to be combined with the handle, and the rotation of the handle drives the rotation of the entire operation part 400 and the extraction part 500 connected thereto. The handle can be covered on the nut to provide an interface for easy force application and operation. When the handle rotates, it drives the nut to rotate, and the rotation of the nut further drives the extraction part 500 to screw into the threaded hole 41. This design takes advantage of the mechanical advantages of the nut and the thread, making the operation more labor-saving and efficient, and the electric wrench mentioned in the application can also be selected to drive the movement of the nut operation part 400. In this way, the operator can more easily control the movement of the extraction part 500, ensuring that it can accurately screw into the threaded hole 41 and effectively engage with the broken screw rod, thereby smoothly extracting it. This design not only improves the convenience of operation, but also enhances the stability and safety of the entire disassembly process. In addition, the design of using a nut as the operation part 400 has high universality and can adapt to different sizes and types of handles, with high flexibility. This makes the tooling widely applicable in various maintenance and disassembly tasks, providing a reliable solution for users.

[0051] Any combination of the above-described technical features of the embodiments can be made. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combination of the technical features does not exist, it should be considered as the scope of the description.

[0052] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the patent. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

[0053] In the description of the present invention, it should be understood that the terms "axial", "radial", "circumferential", "length", "width", "thickness", "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0055] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0056] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0057] It is to be understood that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0058] In the description of the present specification, the description of the terms "one embodiment", "other embodiments", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application.

Claims

1. A broken screw dismounting tool for removing a broken screw of a wind turbine blade, characterized in that, The drilling device comprises: a fixing mechanism for fixing near the hole position of the broken screw rod; a guide mechanism comprising a guide shaft connected with the fixing mechanism; a drilling mechanism comprising a sliding frame slidably sleeved on the guide shaft and a drilling assembly connected with the sliding frame, the drilling assembly being used for mounting and rotating the drill bit, and the drilling assembly being capable of sliding with the sliding frame along the axial direction of the guide shaft to make the drill bit drill a threaded hole at the end of the broken screw rod.

2. The broken screw disassembly tool of claim 1, wherein, The fixing mechanism comprises a base plate, a support and a clamping assembly, one end of the support being connected with the base plate, the other end of the support being connected with the clamping assembly, the clamping assembly, the support and the base plate enclosing a clamping opening, the guide shaft being connected with the base plate on the side away from the clamping opening, the clamping opening being used for clamping and fixing near the hole position of the broken screw rod, and the clamping assembly being arranged to adjust the distance between the clamping assembly and the base plate to adjust the size of the clamping opening.

3. The broken screw disassembly tool of claim 2, wherein, The clamping assembly comprises an adjusting piece and a clamping plate, the clamping plate facing the base plate, the base plate, the support and the clamping plate enclosing the clamping opening, one end of the adjusting piece being connected with the clamping plate on the side away from the base plate, the other end of the adjusting piece being threaded through the support and being threadedly connected with the support, the adjusting piece being arranged to rotate relative to the support under the action of external force and to drive the clamping plate to move closer to or away from the base plate to adjust the size of the clamping opening. The number of the clamping assemblies and the support is arranged to be multiple and one-to-one. The fixing mechanism further comprises a handrail connected with the base plate.

4. The broken screw disassembly tool of claim 2, wherein, The guide mechanism further comprises a resilient piece sleeved on the outer circumferential surface of the guide shaft, one end of the resilient piece being in elastic abutment with the base plate, and the other end of the resilient piece being in elastic abutment with the sliding frame.

5. The broken screw disassembly tool of claim 4, wherein, The end of the guide shaft away from the base plate is provided with a limiting part, the sliding frame is provided with a sliding hole, the sliding frame is slidably sleeved on the outer circumferential surface of the guide shaft through the sliding hole, the size of the limiting part is greater than the size of the sliding hole, and the limiting part is located on the side of the sliding frame away from the resilient piece and is used for abutting against the sliding frame to limit the sliding of the sliding frame in the direction away from the base plate.

6. The broken screw rod dismounting tool according to claim 5, wherein The number of the guide shafts and the resilient pieces is arranged to be multiple and one-to-one. The number of the guide shafts and the sliding holes is arranged to be multiple and one-to-one.

7. The broken screw rod dismounting tool according to claim 1, wherein The drilling assembly comprises a driving piece and a mounting part, the sliding frame is provided with a rotating hole, the output shaft of the driving piece is rotatably threaded through the rotating hole, and the end of the output shaft is connected with the mounting part, the mounting part being used for mounting and rotating the drill bit.

8. The broken screw disassembly tool of claim 7, wherein, The driving piece is an electric wrench.

9. The broken screw disassembly tool of any one of claims 1 to 8, wherein, The broken screw dismounting tool further comprises a broken wire extractor, the broken wire extractor comprises an operation part and an extraction part connected with the operation part, the operation part is used for driving the extraction part to screw into the threaded hole to extract the broken screw.

10. The broken screw dismounting tool according to claim 9, characterized in that, the connection between the operation part and the extraction part is integrally formed or welded fixed; and / or, the operation part is a nut, the operation part is used for providing a handle sleeve to drive the operation part and the extraction part connected with the operation part to rotate.

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