Wind power blade root end bolt fixing tool

Abstract

This utility model relates to the field of wind turbine blade installation technology, and in particular to a tooling for fixing root bolts on wind turbine blades. It includes a connecting base, a connecting bracket connected to the end face of the connecting base, a wind turbine blade connected to the connecting bracket, a movable structure connected to the end face of the connecting base, and an adjustable fixing structure corresponding to the wind turbine blade on the movable structure. A controller is connected to the side wall of the connecting base. This utility model, by incorporating an adjustable fixing structure in the wind turbine blade root bolt fixing tooling, utilizes an adjusting motor within the adjustable fixing structure to adjust the distance between multiple sets of fixing guide posts via a transmission structure. This ensures that the distance between the multiple sets of fixing guide posts is consistent with the hole spacing of the bolt holes on the wind turbine blade, allowing the device to be used for different wind turbine blades and improving its application range.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine blade installation technology, specifically to a tooling for fixing root bolts of wind turbine blades. Background Technology

[0002] Currently, blade root bolt installation is divided into two types: post-drilling and pre-embedded bolt sleeves. For blades with pre-embedded bolt sleeves, the fiberglass is easily affected by temperature after demolding, causing shrinkage and deformation at the blade root end. This leads to changes in the position of the root bolts, poor pitch circle roundness, and ultimately, inability to match the hub in the wind farm, resulting in a large number of scrapped blades and a batch quality accident. Fixtures can be fitted onto the root bolts of the wind turbine blades to fix their position and prevent relative displacement due to shrinkage deformation after demolding. However, the shrinkage deformation after demolding can squeeze the fixture, making it difficult to detach from the root bolt holes. Removal requires manual tools, which is time-consuming and labor-intensive. Furthermore, most existing fixtures are customized for specific wind turbine blade models, making them unsuitable for different blade types, which is inconvenient during equipment use. To address these issues, a new type of wind turbine blade root bolt fixing fixture is needed. Utility Model Content

[0003] The purpose of this utility model is to provide a tooling for fixing root bolts of wind turbine blades to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A wind turbine blade root bolt fixing fixture includes a connecting base, a connecting bracket connected to the end face of the connecting base, a wind turbine blade connected to the connecting bracket, a movable structure connected to the end face of the connecting base, an adjustable fixing structure corresponding to the wind turbine blade on the movable structure, and a controller connected to the side wall of the connecting base. The movable structure includes a connecting housing connected to the end face of a connecting base. A drive motor is connected to the inner cavity of the connecting housing via a connecting seat. The drive end of the drive motor is connected to a drive rod via a coupling. The other end of the drive rod is meshed with a driven bevel gear via a drive bevel gear. A rotating lead screw is connected to the center of the driven bevel gear. A connecting slider is connected to the side wall of the rotating lead screw. A connecting slide rod is connected to the connecting slider. Both ends of the connecting slide rod are connected to the side wall of the inner cavity of the connecting housing via connecting plates. A connecting pull rod is connected to the side wall of the connecting slider. The other end of the connecting pull rod is connected to a connecting plate. A limit slide rail is connected to the side wall of the connecting housing via the connecting plate. A limit slider is connected to the limit slide rail.

[0005] As a preferred embodiment of this utility model, the adjustable fixing structure includes a connecting housing, which is connected to a connecting plate and a limiting slider. An adjusting motor is connected to the inner cavity of the connecting housing via a connecting seat. The driving end of the adjusting motor is connected to a driving rod via a coupling. One end of the driving rod is meshed with a connecting bevel gear, and an adjusting screw is connected to the center of the connecting bevel gear. A movable slider is connected to the side wall of the adjusting screw, and a fixed slider is connected to the other end of the adjusting screw. A limiting rod is connected to the movable slider, and both ends of the limiting rod are connected to the fixed slider and its side wall. Multiple sets of fixed connecting blocks are connected to the side walls of the movable and fixed sliders. A scissor-type support frame is connected to the side wall of the fixed connecting block, and a movable connecting plate is connected to the other end of the scissor-type support frame. A fixed slider is connected to one end of the movable connecting plate, and the fixed slider is connected to the side wall of the connecting housing via a connecting plate. A fixed guide post is connected to the other end of the movable connecting plate.

[0006] In a preferred embodiment of this utility model, the drive motor is connected to the controller via a wire in an electrical connection manner, and the drive rod is connected to the side wall of the inner cavity of the connecting housing via a bearing seat, wherein the drive rod and the bearing seat are connected in a rotatable manner.

[0007] As a preferred embodiment of this utility model, the rotating lead screw is connected to the side wall of the inner cavity of the connecting housing through a bearing seat, wherein the connection between the rotating lead screw and the bearing seat is a rotatable connection, and the rotating lead screw is composed of a left-handed lead screw and a right-handed lead screw spliced ​​together.

[0008] As a preferred embodiment of this utility model, the connection between the rotating lead screw and the connecting slider is a threaded connection, and the connecting slider has a connecting hole corresponding to the connecting slide rod. The connection between the connecting slide rod and the connecting hole is a sliding connection, and the connecting slider and the connecting pull rod are rotatably connected by a rotating shaft.

[0009] As a preferred embodiment of this utility model, the connecting rod and the connecting plate are rotatably connected by a rotating shaft, and the limiting slider is provided with a groove corresponding to the limiting slide rail, wherein the limiting slide rail and the groove are connected by a sliding connection, and the adjusting motor is connected to the controller by a wire and the connection method is an electrical connection.

[0010] As a preferred embodiment of this utility model, the drive rod is connected to the side wall of the inner cavity of the connecting housing via a bearing seat, wherein the drive rod and the bearing seat are connected by a rotatable connection; the adjusting screw is connected to the side wall of the inner cavity of the connecting housing via a bearing seat, wherein the adjusting screw and the bearing seat are connected by a rotatable connection; and the adjusting screw and the movable slider are connected by a threaded connection.

[0011] As a preferred embodiment of this utility model, the adjusting screw and the fixed slider are rotatably connected by a bearing, and the movable slider is provided with a connecting hole corresponding to the limiting slider. The connection between the limiting slider and the connecting hole is a sliding connection. The fixed connecting block and the scissor-type support frame are rotatably connected by a rotating shaft, and the movable connecting plate is rotatably connected to one end of the left side of the scissor-type support frame by a rotating shaft.

[0012] As a preferred embodiment of this utility model, a sliding groove is provided on the movable connecting plate corresponding to the rotating shaft at one end of the right side of the scissor-type support frame, wherein the rotating shaft and the sliding groove are connected in a sliding manner. A connecting hole is provided on the movable connecting plate corresponding to the fixed sliding rod, wherein the fixed sliding rod and the connecting hole are connected in a sliding manner.

[0013] Compared with the prior art, the beneficial effects of this utility model are: In this invention, a movable structure is set in the fixing fixture for the root bolts of the wind turbine blade. The drive motor in the movable structure can quickly insert the fixing guide post into the root bolt hole of the wind turbine blade through the transmission structure. After the wind turbine blade is cooled and formed, the fixing guide post can be easily removed from the root bolt hole of the wind turbine blade, making it easier to pull the fixing guide post out of the root bolt hole of the wind turbine blade.

[0014] In this invention, an adjustable fixing structure is set in the bolt fixing fixture at the root end of the wind turbine blade. The adjusting motor in the adjustable fixing structure can adjust the distance between multiple sets of fixing guide columns through the transmission structure, ensuring that the distance between the multiple sets of fixing guide columns is consistent with the hole spacing of the bolt holes on the wind turbine blade. This allows the device to be used for different wind turbine blades, thus improving the device's application range. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the isotropic structure of this utility model; Figure 2 This is a schematic diagram of the movable structure of this utility model; Figure 3 for Figure 2 Partial structural diagram; Figure 4 This is a schematic diagram of the adjustable fixing structure of this utility model; Figure 5 for Figure 4 A partial structural diagram.

[0016] In the diagram: 1. Connecting base; 2. Connecting bracket; 3. Wind turbine blade; 4. Moving structure; 5. Adjustable fixed structure; 6. Controller; 401. Connecting housing; 402. Drive motor; 403. Drive rod; 404. Drive bevel gear; 405. Driven bevel gear; 406. Rotating screw; 407. Connecting slider; 408. Connecting slide rod; 409. Connecting pull rod; 410. Connecting plate; 411. Limiting slide rail; 412. Limiting slider; 501. Connecting housing; 502. Adjusting motor; 503. Drive rotating rod; 504. Connecting bevel gear; 505. Connecting bevel gear; 506. Adjusting screw; 507. Moving slider; 508. Fixed slider; 509. Limiting slide rod; 510. Fixed connecting block; 511. Scissor-type support frame; 512. Moving connecting plate; 513. Fixed slide rod; 514. Fixed guide column. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] For an example, please refer to... Figure 1-5 This utility model provides a technical solution: The wind turbine blade root bolt fixing fixture includes a connecting base 1, a connecting bracket 2 connected to the end face of the connecting base 1, a wind turbine blade 3 connected to the connecting bracket 2, a movable structure 4 connected to the end face of the connecting base 1, an adjustable fixing structure 5 provided on the movable structure 4 and corresponding to the wind turbine blade 3, and a controller 6 connected to the side wall of the connecting base 1. In this embodiment, reference Figure 1 , Figure 2 and Figure 3The movable structure 4 includes a connecting housing 401, which is connected to the end face of the connecting base 1. A drive motor 402 is connected to the inner cavity of the connecting housing 401 via a connecting seat. The drive end of the drive motor 402 is connected to a drive rod 403 via a coupling. The other end of the drive rod 403 is meshed with a driven bevel gear 405 via a drive bevel gear 404. A rotating screw 406 is connected to the center of the driven bevel gear 405. A connecting slider 407 is connected to the side wall of the rotating screw 406. A connecting slide rod 408 is connected to the connecting slider 407. The two ends of the connecting slide rod 408 are connected to the side wall of the inner cavity of the connecting housing 401 via connecting plates. A connecting pull rod 409 is connected to the side wall of the connecting slider 407. The other end of the connecting pull rod 409 is connected to a connecting plate 410. A limiting slide rail 411 is connected to the side wall of the connecting housing 401 via a connecting plate. A limiting slider 412 is connected to the limiting slide rail 411. Based on the above structure and the connection relationship of the above structure, the controller 6 controls the drive motor 402 to run. When the drive end of the drive motor 402 rotates, it sequentially drives the drive rod 403, the drive bevel gear 404, the driven bevel gear 405 and the rotating screw 406 to rotate. When the rotating screw 406 rotates, it can drive the two sets of connecting sliders 407 to move in opposite or contradictory directions on the side wall of the rotating screw 406. When the connecting sliders 407 move, they drive the adjustable fixed structure 5 to move through the connecting rod 409 and the connecting plate 410. Furthermore, the drive motor 402 is connected to the controller 6 via wires in an electrical connection manner, and the operation of the drive motor 402 can be controlled by the controller 6. Furthermore, the drive rod 403 is connected to the side wall of the inner cavity of the connecting housing 401 via a bearing seat. The drive rod 403 is rotatably connected to the bearing seat. The rotating lead screw 406 is connected to the side wall of the inner cavity of the connecting housing 401 via a bearing seat. The rotating lead screw 406 is rotatably connected to the bearing seat. The rotating lead screw 406 is composed of a left-handed lead screw and a right-handed lead screw. The rotating lead screw 406 is threadedly connected to the connecting slider 407. A connecting hole is provided corresponding to the connecting slide rod 408. The connecting slide rod 408 and the connecting hole are connected by a sliding connection. The connecting slider 407 and the connecting pull rod 409 are rotatably connected by a rotating shaft. The connecting pull rod 409 and the connecting plate 410 are rotatably connected by a rotating shaft. A sliding groove is provided on the limiting slider 412 and corresponding to the limiting slide rail 411. The limiting slide rail 411 and the sliding groove are connected by a sliding connection. When the driving rod 403 rotates, it can drive the adjustable fixed structure 5 to move. In this embodiment, reference Figure 1 , Figure 4 and Figure 5The adjustable fixing structure 5 includes a connecting housing 501, which is connected to the connecting plate 410 and the limiting slider 412. An adjusting motor 502 is connected to the inner cavity of the connecting housing 501 via a connecting seat. The drive end of the adjusting motor 502 is connected to a driving rod 503 via a coupling. One end of the driving rod 503 is engaged with a connecting bevel gear 505 via a connecting bevel gear 504. An adjusting screw 506 is connected to the center of the connecting bevel gear 505. A movable slider 507 is connected to the side wall of the adjusting screw 506, and a fixed slider 508 is connected to the other end of the adjusting screw 506. A limiting slide rod 509 is connected to the movable slider 507. The two ends of the limiting slide rod 509 are connected to the fixed slider 508 and the side wall of the fixed slider 508. Multiple sets of fixed connecting blocks 510 are connected to the side wall of the movable slider 507 and the fixed slider 508. A scissor-type support frame 511 is connected to the side wall of the fixed connecting block 510. The other end of the scissor-type support frame 511 is connected to a movable connecting plate 512. One end of the movable connecting plate 512 is connected to a fixed slide rod 513. The fixed slide rod 513 is connected to the side wall of the connecting housing 501 through a connecting plate. The other end of the movable connecting plate 512 is connected to a fixed guide post 514. Based on the above structure and the connection relationship of the above structure, the controller 6 controls the operation of the regulating motor 502. When the driving end of the regulating motor 502 rotates, it sequentially drives the driving rod 503, the connecting bevel gear 504, the connecting bevel gear 505 and the adjusting screw 506 to rotate. When the adjusting screw 506 rotates, it drives the moving slider 507 to move on the side wall of the adjusting screw 506. When the moving slider 507 moves, it drives the moving connecting plate 512 to move on the fixed slide rod 513 through the scissor-type support frame 511. When the moving connecting plate 512 moves, it adjusts the distance between multiple sets of fixed guide columns 514. Furthermore, the regulating motor 502 is connected to the controller 6 via a wire in an electrical connection manner, and the operation of the regulating motor 502 can be controlled by the controller 6. Furthermore, the drive rod 503 is connected to the side wall of the inner cavity of the connecting housing 501 via a bearing seat, wherein the drive rod 503 is rotatably connected to the bearing seat. The adjusting screw 506 is connected to the side wall of the inner cavity of the connecting housing 501 via a bearing seat, wherein the adjusting screw 506 is rotatably connected to the bearing seat. The adjusting screw 506 is threadedly connected to the movable slider 507. The adjusting screw 506 is rotatably connected to the fixed slider 508 via a bearing. The movable slider 507 has a connecting hole corresponding to the limiting slider 509, wherein the limiting slider 509 is connected to the connecting hole. The connection method is a sliding connection. The fixed connecting block 510 and the scissor-type support frame 511 are rotatably connected by a rotating shaft. The movable connecting plate 512 is rotatably connected to one end of the left side of the scissor-type support frame 511 by a rotating shaft. The movable connecting plate 512 is provided with a groove corresponding to the rotating shaft at one end of the right side of the scissor-type support frame 511. The connection between the rotating shaft and the groove is a sliding connection. The movable connecting plate 512 is provided with a connecting hole corresponding to the fixed sliding rod 513. The connection between the fixed sliding rod 513 and the connecting hole is a sliding connection. When the driving rotating rod 503 is rotated, the distance between multiple sets of fixed guide posts 514 can be adjusted.

[0019] The working process of this utility model is as follows: When using the root bolt fixing fixture for wind turbine blades, first connect the power supply to the device to put it into operation. According to the hole spacing of the bolt holes on the wind turbine blade 3, the controller 6 controls the operation of the adjusting motor 502. When the drive end of the adjusting motor 502 rotates, it sequentially drives the drive rod 503, the connecting bevel gear 504, the connecting bevel gear 505, and the adjusting screw 506 to rotate. When the adjusting screw 506 rotates, it drives the moving slider 507 to move on the side wall of the adjusting screw 506. When the moving slider 507 moves, it drives the moving connecting plate 512 to move on the fixed sliding rod 513 through the scissor-type support frame 511. When the moving connecting plate 512 moves, it adjusts the distance between multiple sets of fixed guide columns 514 to ensure that the distance between multiple sets of fixed guide columns 514 is consistent with the hole spacing of the bolt holes on the wind turbine blade 3. The controller 6 controls the operation of the drive motor 402. When the drive end of the drive motor 402 rotates, it sequentially drives the drive rod 403, the drive bevel gear 404, the driven bevel gear 405, and the rotating screw 406 to rotate. When the rotating screw 406 rotates, it can drive the two sets of connecting sliders 407 to move in opposite or contradictory directions on the side wall of the rotating screw 406. When the connecting sliders 407 move, they drive the adjustable fixing structure 5 to move through the connecting rod 409 and the connecting plate 410, so that the fixing guide post 514 can be quickly inserted into the bolt hole on the wind turbine blade 3.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tooling for fixing root bolts of wind turbine blades, including a connecting base (1), characterized in that: A connecting bracket (2) is connected to the end face of the connecting base (1), a wind turbine blade (3) is connected to the connecting bracket (2), a moving structure (4) is connected to the end face of the connecting base (1), an adjustable fixing structure (5) is provided on the moving structure (4) and corresponding to the wind turbine blade (3), and a controller (6) is connected to the side wall of the connecting base (1). The movable structure (4) includes a connecting housing (401), which is connected to the end face of the connecting base (1). A drive motor (402) is connected to the inner cavity of the connecting housing (401) via a connecting seat. The drive end of the drive motor (402) is connected to the drive rod (403) via a coupling. The other end of the drive rod (403) is connected to the driven bevel gear (405) via a drive bevel gear (404). A rotating screw (406) is connected to the center of the driven bevel gear (405). A connecting slider (407) is connected to the side wall of the rotating screw (406). A connecting rod (408) is connected to the connecting slider (407). The two ends of the connecting rod (408) are connected to the side wall of the inner cavity of the connecting housing (401) via connecting plates. A connecting pull rod (409) is connected to the side wall of the connecting slider (407). The other end of the connecting pull rod (409) is connected to a connecting plate (410). A limiting slide rail (411) is connected to the side wall of the connecting housing (401) via a connecting plate. A limiting slider (412) is connected to the limiting slide rail (411).

2. The wind turbine blade root end bolt fixing fixture according to claim 1, characterized in that: The adjustable fixing structure (5) includes a connecting housing (501), which is connected to a connecting plate (410) and a limiting slider (412). An adjusting motor (502) is connected to the inner cavity of the connecting housing (501) via a connecting seat. The driving end of the adjusting motor (502) is connected to a driving rod (503) via a coupling. One end of the driving rod (503) is meshed with a connecting bevel gear (505) via a connecting bevel gear (504). An adjusting screw (506) is connected to the center of the connecting bevel gear (505). A movable slider (507) is connected to the side wall of the adjusting screw (506), and a fixed slider (508) is connected to the other end of the adjusting screw (506). The movable slider (507) is connected to a limiting slide rod (509). The two ends of the limiting slide rod (509) are connected to the side walls of the fixed slider (508) and the fixed slider (508). Multiple sets of fixed connecting blocks (510) are connected to the side walls of the movable slider (507) and the fixed slider (508). A scissor-type support frame (511) is connected to the side wall of the fixed connecting block (510). The other end of the scissor-type support frame (511) is connected to a movable connecting plate (512). One end of the movable connecting plate (512) is connected to a fixed slide rod (513). The fixed slide rod (513) is connected to the side wall of the connecting housing (501) through a connecting plate. The other end of the movable connecting plate (512) is connected to a fixed guide post (514).

3. The wind turbine blade root end bolt fixing fixture according to claim 2, characterized in that: The drive motor (402) is connected to the controller (6) by wires and the connection method is electrical connection. The drive rod (403) is connected to the side wall of the inner cavity of the connecting housing (401) by bearing seat, wherein the connection method between the drive rod (403) and the bearing seat is rotatable connection.

4. The wind turbine blade root end bolt fixing fixture according to claim 2, characterized in that: The rotating lead screw (406) is connected to the side wall of the inner cavity of the connecting housing (401) through a bearing seat. The rotating lead screw (406) and the bearing seat are connected by a rotating connection. The rotating lead screw (406) is composed of a left-handed lead screw and a right-handed lead screw.

5. The wind turbine blade root end bolt fixing fixture according to claim 2, characterized in that: The rotating lead screw (406) and the connecting slider (407) are connected by a threaded connection. The connecting slider (407) and the connecting slide rod (408) are provided with connecting holes. The connecting slide rod (408) and the connecting holes are connected by a sliding connection. The connecting slider (407) and the connecting pull rod (409) are rotatably connected by a rotating shaft.

6. The wind turbine blade root end bolt fixing fixture according to claim 2, characterized in that: The connecting rod (409) and the connecting plate (410) are rotatably connected by a rotating shaft. The limiting slider (412) has a groove corresponding to the limiting slide rail (411). The limiting slide rail (411) and the groove are connected by a sliding connection. The adjusting motor (502) is connected to the controller (6) by a wire and the connection method is an electrical connection.

7. The wind turbine blade root end bolt fixing fixture according to claim 2, characterized in that: The drive rod (503) is connected to the side wall of the inner cavity of the connecting housing (501) through a bearing seat, wherein the drive rod (503) and the bearing seat are connected by rotation. The adjusting screw (506) is connected to the side wall of the inner cavity of the connecting housing (501) through a bearing seat, wherein the adjusting screw (506) and the bearing seat are connected by rotation. The adjusting screw (506) and the movable slider (507) are connected by thread.

8. The wind turbine blade root end bolt fixing fixture according to claim 2, characterized in that: The adjusting screw (506) and the fixed slider (508) are rotatably connected by a bearing. The movable slider (507) has a connecting hole corresponding to the limiting slider (509). The limiting slider (509) and the connecting hole are connected by a sliding connection. The fixed connecting block (510) and the scissor support frame (511) are rotatably connected by a rotating shaft. The movable connecting plate (512) and one end of the left side of the scissor support frame (511) are rotatably connected by a rotating shaft.

9. The wind turbine blade root end bolt fixing fixture according to claim 2, characterized in that: The movable connecting plate (512) is provided with a sliding groove corresponding to the rotating shaft at the right end of the scissor-type support frame (511), wherein the rotating shaft and the sliding groove are connected in a sliding manner. The movable connecting plate (512) is provided with a connecting hole corresponding to the fixed sliding rod (513), wherein the fixed sliding rod (513) and the connecting hole are connected in a sliding manner.

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