Quick and safe bolt replacement device

Abstract

The utility model relates to a kind of bolt quick safe replacement device, including fixture body, clamping assembly, adjusting assembly and force application part, one end of fixture body is provided with clamping assembly, clamping assembly is slidably connected with fixture body, the other end of fixture body is fixedly provided with force application part, adjusting assembly is drivingly connected with clamping assembly. Clamping assembly is slidably connected with fixture body, and the transmission effect of cooperation adjusting assembly, can flexibly adjust clamping range according to bolt actual size. By adjusting adjusting assembly, clamping assembly is clamped or loosened bolt, it is convenient to operate in the process of replacing bolt. When replacing bolt, after clamping assembly is clamped and fixed to bolt, independently arranged force application part provides stable carrier for external force input, can be matched with large torque electric wrench and other tools to borrow force, compared with pipe wrench, it is purely dependent on human force holding and exerting force, substantially reduce physical consumption, relieve personnel arm sore and swollen problem, shorten single bolt dismounting time, reduce unit downtime, reduce power loss.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine equipment maintenance technology, specifically to a fast and safe bolt replacement device. Background Technology

[0002] During wind turbine maintenance, it is necessary to replace the turbine blade bolts. Because the bolts are not designed with internal hexagonal sockets for bolt removal, operators use pipe wrenches to remove them. The clamping force is entirely provided by hand gripping. Furthermore, some bolts have deteriorated due to long-term blade operation, resulting in aging of the internal sealant and deformation of the bolt, making removal with pipe wrenches extremely difficult. Removing a single bolt takes about ten minutes and is very physically demanding; removing just 3-4 bolts often leads to arm fatigue, and there is a risk of heatstroke during summer operations. Additionally, maintenance requires shutting down the turbine and replacing dozens or even hundreds of bolts, resulting in significant power loss from prolonged downtime. Therefore, a device for quickly replacing bolts is urgently needed. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a device that can save time and effort and quickly replace bolts.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A fast and safe bolt replacement device includes a clamp body, a clamping component, an adjusting component and a force-applying part. One end of the clamp body is provided with a clamping component, which is slidably connected to the clamp body. The other end of the clamp body is fixedly provided with a force-applying part. The adjusting component is kinetically connected to the clamping component.

[0005] The beneficial effects of this invention are as follows: the clamping assembly is slidably connected to the clamp body, and in conjunction with the transmission action of the adjusting assembly, the clamping range can be flexibly adjusted according to the actual size of the bolt, effectively avoiding the problems of poor flexibility and excessive effort when using pipe wrenches. By adjusting the adjusting assembly, the clamping assembly can clamp or loosen the bolt, making the operation convenient during bolt replacement. When replacing bolts, after the clamping assembly clamps and fixes the bolt, the independently set force application part provides a stable carrier for external force input. It can be used with tools such as high-torque electric wrenches for leverage. Compared with pipe wrenches that rely solely on manual gripping and force application, this device does not require manual clamping of the bolt. It only requires applying torque to rotate the screw, significantly reducing physical exertion and alleviating arm fatigue. At the same time, it shortens the disassembly time of a single bolt, reduces unit downtime, and reduces power loss.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the clamping assembly includes at least two jaws, which are spaced apart at one end of the clamping body along the circumference of the clamping body and are slidably connected to the clamping body.

[0008] The advantages of adopting the above-mentioned further solution are: at least two spaced jaws form a "multi-point clamping" structure, which can apply clamping force from multiple angles around the bolt. Especially for situations where the sealant has aged, it can effectively avoid the problem of laborious bolt removal using pipe wrenches, improving the safety and reliability of the disassembly process. The jaws are slidably connected to the clamp body, and the clamping diameter can be adjusted by synchronous sliding, which can cover bolts of different specifications for wind turbine blades, improving the convenience and versatility of operation.

[0009] Furthermore, the clamp body includes a disc and an end cap, which are fixedly connected; the disc has a sliding groove along its radial direction that is adapted to the jaws.

[0010] The beneficial effects of adopting the above-mentioned further solution are as follows: The fixed connection between the disc and the end cover forms a "closed cavity," providing built-in installation space for the adjustment components. This prevents dust, oil, and sealant residue from the wind turbine blade operation site from entering the adjustment structure, preventing component jamming, ensuring the stability of the device during long-term outdoor use, and reducing operational interruptions due to component failure. The sliding grooves on the disc are compatible with the claws, providing a fixed trajectory for the claws to slide. This ensures that multiple claws move towards or away from the bolts simultaneously, avoiding "clamping eccentricity" caused by claw slippage (eccentricity can easily cause bolt deformation or claw damage), improving the reliability of the clamping components, and reducing the operational error rate.

[0011] Furthermore, the adjustment assembly includes an adjustment bevel gear and an adjustment disk, both of which are rotatably mounted in the disk body. The axes of the adjustment bevel gear and the adjustment disk are perpendicular, and the adjustment bevel gear meshes with one end of the adjustment disk.

[0012] The beneficial effects of adopting the above-mentioned further solution are: the transmission structure of the adjustment bevel gear meshing with the adjustment disc allows the clamping or loosening of the chuck to be adjusted by rotating the adjustment bevel gear. Personnel do not need to directly move the chuck to adjust; they only need to rotate the adjustment bevel gear to drive the adjustment disc through meshing transmission, thereby driving the chuck to clamp or loosen. The operation is more labor-saving and precise.

[0013] Furthermore, the other end face of the adjusting disc is provided with a planar thread, and the chuck is provided with a thread for screwing the planar thread.

[0014] The beneficial effects of adopting the above-mentioned further solution are as follows: the planar thread of the adjusting disc is screwed into the thread of the chuck, forming a "helical transmission" structure. By rotating the adjusting bevel gear, the adjusting disc is driven to move through meshing transmission. The rotation of the adjusting disc drives the chuck, which is screwed into it, to clamp or loosen. Simultaneously, the helix angle design of the planar thread enables a "self-locking function," meaning that after the bolt is clamped, the chuck will not loosen due to the reaction force during disassembly if the adjusting disc is not actively rotated, thus improving the stability and reliability of the device operation.

[0015] Furthermore, one end of the adjusting bevel gear is provided with a gear, and the other end of the adjusting bevel gear is provided with an adjusting locking part.

[0016] The beneficial effects of adopting the above-mentioned further solution are: the gear at one end of the adjusting bevel tooth is used to mesh with the adjusting plate for transmission, and the adjusting snap-fit ​​part at the other end can be adapted to conventional tools such as screwdrivers and Allen wrenches, thereby facilitating the operator to adjust, clamp or loosen the bolts.

[0017] Furthermore, the side wall of the disc is provided with an adjustment hole, the gear meshes with the adjustment disc inside the disc, and the adjustment latching part is disposed in the adjustment hole and rotatably connected to the adjustment hole.

[0018] The advantages of adopting the above-mentioned further solution are as follows: the gear is built into the disc body and meshes with the adjusting disc, avoiding exposure of the transmission components, preventing accidental hand contact and entanglement during operation, and protecting the gear teeth from external impact damage, thus extending the service life of the device; the adjusting latch is limited to rotation within the adjusting hole, ensuring that the adjusting bevel gear rotates only around its own axis, avoiding transmission failure due to component misalignment. The adjusting latch is located in the adjusting hole on the side wall of the disc body, thus facilitating adjustment by the operator from the side of the device, improving operational flexibility.

[0019] Furthermore, the end of the claw facing the center of the clamp body is provided with anti-slip texture.

[0020] The beneficial effects of adopting the above-mentioned further solution are: the anti-slip texture on the contact surface between the chuck and the bolt can increase the friction between the two, effectively prevent relative sliding between the chuck and the bolt, increase the stability of the device in clamping the bolt, ensure that the disassembly force is effectively transmitted to the bolt, and improve disassembly efficiency.

[0021] Furthermore, the force-applying part is a hexagonal prism.

[0022] The beneficial effects of adopting the above-mentioned further solution are: by designing the force-applying part as a hexagonal prism, operators can directly adapt to tools such as high-torque electric wrenches, open-end wrenches, and ratchet wrenches, and use the force-applying part as the force-applying point to ensure that the external force is stably transmitted to the clamp body, thereby replacing the bolt and improving the safety of the bolt replacement process.

[0023] Furthermore, the force-applying part is provided with a hexagonal hole.

[0024] The advantages of adopting the above-mentioned further solution are: the hexagonal hole in the force application part can be adapted to tools such as hex wrenches and hex sockets, allowing tools to be inserted and applied force through the hexagonal hole in the force application part, providing more operating space, especially in narrow spaces. Operators can choose the "internal insertion" or "external clamping" force application method according to the site space, improving the adaptability of the device to complex working scenarios and further reducing the difficulty of operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the bolt replacement device of this utility model; Figure 2 This is a schematic diagram of the adjustment component and the locking claw of this utility model.

[0026] The attached diagram lists the components represented by each number as follows: 100. Fixture body; 110. Disc; 111. Slide groove; 120. End cap; 200. Clamping assembly; 210. Claw; 300. Adjustment assembly; 310. Adjustment bevel gear; 311. Gear; 312. Adjustment locking part; 320. Adjustment disc; 400. Force application part; 1. Bolt. Detailed Implementation

[0027] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0028] like Figures 1-2 As shown, this embodiment provides a fast and safe bolt replacement device, including a clamp body 100, a clamping assembly 200, an adjusting assembly 300, and a force-applying part 400. The clamping assembly 200 is provided at one end of the clamp body 100 and is slidably connected to the clamp body 100. The force-applying part 400 is fixedly provided at the other end of the clamp body 100. The adjusting assembly 300 is kinetically connected to the clamping assembly 200.

[0029] The beneficial effects of this utility model are as follows: The clamping component 200 is slidably connected to the clamp body 100, and in conjunction with the transmission action of the adjusting component 300, the clamping range can be flexibly adjusted according to the actual size of the bolt 1, effectively avoiding the problems of poor flexibility and laborious operation when using pipe wrenches. By adjusting the adjusting component 300, the clamping component 200 can clamp or loosen the bolt 1, making the operation convenient during the replacement of the bolt 1. When replacing the bolt 1, after the clamping component 200 clamps and fixes the bolt 1, the independently set force application part 400 provides a stable carrier for the input of external force. It can be used with tools such as high-torque electric wrenches for assistance. Compared with pipe wrenches that rely solely on manual gripping and force application, this device does not require manual clamping of the bolt. It only requires applying torque to rotate the screw, which greatly reduces physical exertion, alleviates the problem of arm soreness, and shortens the disassembly time of a single bolt, reduces the downtime of the unit, and reduces power loss.

[0030] Based on the above technical solution, the clamping assembly 200 includes at least two jaws 210, which are circumferentially spaced at one end of the clamping body 100 and slidably connected to the clamping body 100.

[0031] At least two spaced-apart jaws 210 form a "multi-point clamping" structure, which can apply clamping force from multiple angles around the outer periphery of the bolt 1. Especially for bolts with aging sealant, this effectively avoids the problem of laborious bolt removal using pipe wrenches, improving the safety and reliability of the disassembly process. The jaws 210 are slidably connected to the clamp body 100, and the clamping diameter can be adjusted by synchronous sliding, which can cover bolts of different specifications for wind turbine blades, improving the convenience and versatility of operation.

[0032] Based on the above technical solution, the clamp body 100 includes a disc body 110 and an end cap 120, which are fixedly connected; the disc body 110 is provided with a sliding groove 111 along its radial direction that is adapted to the claw 210.

[0033] The disc body 110 and the end cover 120 are fixedly connected to form a "closed cavity," providing built-in installation space for the adjustment assembly 300. This prevents dust, oil, and sealant residue from the wind turbine blade operation site from entering the adjustment structure, preventing component jamming, ensuring the stability of the device during long-term outdoor use, and reducing operation interruptions due to component failure. The sliding groove 111 on the disc body 110 is adapted to the claw 210, providing a fixed trajectory for the sliding of the claw 210. This ensures that multiple claws 210 move towards or away from the bolt 1 synchronously, avoiding "clamping eccentricity" caused by the sliding offset of the claw 210 (eccentricity can easily cause further deformation of the bolt 1 or damage to the claw 210), improving the reliability of the clamping assembly 200 and reducing the rate of operational errors.

[0034] Specifically, the groove 111 is T-shaped or dovetail-shaped.

[0035] Based on the above technical solution, the adjustment component 300 includes an adjustment bevel gear 310 and an adjustment disk 320. The adjustment bevel gear 310 and the adjustment disk 320 are rotatably mounted in the disk body 110. The axes of the adjustment bevel gear 310 and the adjustment disk 320 are perpendicular, and the adjustment bevel gear 310 meshes with one end of the adjustment disk 320.

[0036] The transmission structure that engages the bevel gear 310 with the adjusting disc 320 allows the clamping or loosening of the chuck 210 to be adjusted by rotating the bevel gear 310. Personnel do not need to directly move the chuck 210 for adjustment; they only need to rotate the bevel gear 310 to drive the adjusting disc 320 through the meshing transmission, thereby driving the chuck 210 to clamp or loosen. This makes the operation more labor-saving and precise.

[0037] Specifically, one end of the adjusting disc 320 is provided with bevel teeth, which mesh with the adjusting bevel teeth 310.

[0038] Based on the above technical solution, the other end face of the adjusting disc 320 is provided with a planar thread, and the chuck 210 is provided with the thread for screwing the planar thread.

[0039] The planar thread of the adjusting disc 320 is screwed into the thread of the chuck 210, forming a "helical transmission" structure. Rotating the adjusting bevel gear 310 drives the adjusting disc 320 through meshing transmission. The rotation of the adjusting disc 320 drives the chuck 210, which is screwed into it, to move radially along the adjusting disc 320, thereby clamping or loosening the bolt 1. Simultaneously, the helix angle design of the planar thread enables a "self-locking function," meaning that after the bolt 1 is clamped, the chuck 210 will not loosen due to the reaction force during disassembly unless the adjusting disc 320 is actively rotated, thus improving the stability and reliability of the device operation.

[0040] Based on the above technical solution, one end of the adjusting bevel tooth 310 is provided with a gear 311, and the other end of the adjusting bevel tooth 310 is provided with an adjusting locking part 312.

[0041] The gear 311 at one end of the adjusting bevel gear 310 is used to mesh with the adjusting disc 320 for transmission, and the adjusting snap-fit ​​part 312 at the other end can be adapted to conventional tools such as screwdrivers and Allen wrenches, so as to facilitate the operator to adjust, clamp or loosen the bolt 1.

[0042] Specifically, the adjusting latch 312 is provided with polygonal holes. With the help of an auxiliary tool, the polygonal holes are adapted to facilitate the rotation of the adjusting bevel gear 310, which in turn drives the adjusting disc 320 to rotate, thereby driving the pawl 210 to move closer or further away, so as to adjust the clamping or loosening of the bolt 1.

[0043] Optionally, the adjusting latch 312 can also be provided with a straight, cross-shaped or other irregular hole, which can be adjusted with the help of a matching auxiliary tool.

[0044] In a specific example, there are three chucks 210, which are evenly spaced at one end of the clamp body 100, and an adjusting bevel tooth 310 is provided between every two chucks 210.

[0045] Based on the above technical solution, the side wall of the disc body 110 is provided with an adjustment hole, the gear 311 meshes with the adjustment disc 320 inside the disc body 110, and the adjustment latching part 312 is disposed inside the adjustment hole and rotatably connected to the adjustment hole.

[0046] Gear 311 is built into the disc body 110 and meshes with the adjusting disc 320, preventing the transmission components from being exposed and preventing accidental hand contact and entanglement during operation. It also protects the gear teeth from external impact damage, extending the device's service life. The adjusting latch 312 is confined to rotation within the adjusting hole, ensuring that the adjusting bevel gear 310 rotates only around its own axis, preventing transmission failure due to component misalignment. The adjusting latch 312 is located within the adjusting hole on the side wall of the disc body 110, allowing operators to easily adjust the device from the side, improving operational flexibility.

[0047] Specifically, the adjustment hole is located on the outer side wall of the disc body 110, and the inner side wall of the disc body 110 is also provided with a connection hole. A bearing is fixedly installed at the connection hole, and one end of the adjustment bevel gear 310 passes through the adjustment hole and is connected to the bearing.

[0048] Based on the above technical solution, the end of the claw 210 facing the center of the clamp body 100 is provided with anti-slip texture.

[0049] The anti-slip texture on the contact surface between the claw 210 and the bolt 1 can increase the friction between them, effectively prevent relative sliding between the claw 210 and the bolt 1, increase the stability of the device clamping the bolt 1, ensure that the disassembly force is effectively transmitted to the bolt 1, and improve disassembly efficiency.

[0050] Based on the above technical solution, the force-applying part 400 is a hexagonal prism.

[0051] By designing the force-applying part 400 as a hexagonal prism, operators can directly adapt to tools such as high-torque electric wrenches, open-end wrenches, and ratchet wrenches, using the force-applying part 400 as the force-applying point to ensure that external force is stably transmitted to the clamp body 100, thereby replacing the bolt 1 and improving the safety of the bolt 1 replacement process.

[0052] Based on the above technical solution, a hexagonal hole is provided on the force-applying part 400.

[0053] The hexagonal hole of the force application section 400 is compatible with tools such as hex wrenches and hex sockets, allowing tools to be inserted and applied force through the hexagonal hole of the force application section 400, providing more operating space, especially in confined spaces. Operators can choose between "internal insertion" or "external clamping" force application methods depending on the available space, improving the device's adaptability to complex work scenarios and further reducing the difficulty of operation.

[0054] This utility model's bolt replacement device enables quick and convenient disassembly of bolts with internal hexagonal sockets that do not have removable bolts. The clamping assembly 200 is slidably connected to the clamp body 100, and in conjunction with the transmission action of the adjusting assembly 300, the clamping range can be flexibly adjusted according to the actual size of the bolt 1, effectively avoiding the problems of poor flexibility and excessive force when using pipe wrenches. By adjusting the adjusting assembly 300, the clamping assembly 200 can clamp or loosen the bolt 1, making the operation convenient during bolt replacement. When replacing bolt 1, after the clamping assembly 200 clamps and fixes the bolt 1, the independently set force application part 400 provides a stable carrier for external force input. It can be used with conventional tools such as wrenches and sockets for leverage. Compared to pipe wrenches, which rely solely on manual gripping and force application, this significantly reduces physical exertion, alleviates arm fatigue, shortens the disassembly time of a single bolt, reduces unit downtime, and reduces power loss.

[0055] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0056] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0058] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A fast and safe bolt replacement device, characterized in that, The fixture includes a clamp body (100), a clamping assembly (200), an adjusting assembly (300), and a force-applying part (400). The clamping assembly (200) is provided at one end of the clamp body (100) and is slidably connected to the clamp body (100). The force-applying part (400) is fixedly provided at the other end of the clamp body (100). The adjusting assembly (300) is drively connected to the clamping assembly (200).

2. The bolt quick and safe replacement device according to claim 1, characterized in that, The clamping assembly (200) includes at least two jaws (210), which are circumferentially spaced at one end of the clamp body (100) and are slidably connected to the clamp body (100).

3. The bolt quick and safe replacement device according to claim 2, characterized in that, The clamp body (100) includes a disc (110) and an end cap (120), which are fixedly connected; the disc (110) has a groove (111) that is adapted to the claw (210) along its radial direction.

4. The bolt quick and safe replacement device according to claim 3, characterized in that, The adjustment assembly (300) includes an adjustment bevel (310) and an adjustment disk (320). The adjustment bevel (310) and the adjustment disk (320) are rotatably mounted inside the disk body (110). The axes of the adjustment bevel (310) and the adjustment disk (320) are perpendicular, and the adjustment bevel (310) meshes with one end of the adjustment disk (320).

5. The bolt quick and safe replacement device according to claim 4, characterized in that, The other end face of the adjusting disc (320) is provided with a planar thread, and the chuck (210) is provided with a thread for screwing the planar thread.

6. The bolt quick and safe replacement device according to claim 4, characterized in that, One end of the adjusting bevel tooth (310) is provided with a gear (311), and the other end of the adjusting bevel tooth (310) is provided with an adjusting snap-fit ​​part (312).

7. The bolt quick and safe replacement device according to claim 6, characterized in that, The side wall of the disc body (110) is provided with an adjustment hole, the gear (311) meshes with the adjustment disc (320) inside the disc body (110), and the adjustment latch (312) is provided inside the adjustment hole and is rotatably connected to the adjustment hole.

8. A bolt quick and safe replacement device according to any one of claims 2-7, characterized in that, The claw (210) has anti-slip texture at one end facing the center of the clamp body (100).

9. The bolt quick and safe replacement device according to claim 1, characterized in that, The force-applying part (400) is a hexagonal prism.

10. The bolt quick and safe replacement device according to claim 1, characterized in that, The force-applying part (400) is provided with a hexagonal hole.

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