A wind turbine tower bolt rapid pre-tightening auxiliary device

Abstract

The present disclosure relates to the technical field of wind power generation equipment, and discloses a kind of wind turbine tower bolt quick pre-tightening auxiliary device, including support base plate, L type support seat, the bottom of the L type support seat is provided with positioning mechanism, the positioning mechanism includes support ring, T type support seat, a plurality of rotating short rods are rotatably connected in the middle inside of the T type support seat, two rotating long rods are rotatably connected in the inside of the two sides of the T type support seat, the proximal side of two rotating long rods is fixedly connected with fastening block, fastening groove is formed in the inside of the fastening block.The utility model discloses that electric telescopic column starts, rotating long rod rotates, fastening groove follows, so that bolt is positioned in the inside of fastening groove, drive motor starts, drives rotation, so that the different bolt quick positioning pre-tightening is positioned, the efficiency of the pre-tightening operation of multiple bolts is improved, can effectively reduce operation step, enhance the convenience and stability of operation.

Description

Technical Field

[0001] This disclosure relates to the field of wind power generation equipment technology, and in particular to an auxiliary device for rapid pre-tightening of tower bolts of wind turbine generator sets. Background Technology

[0002] In the field of wind power generation, the stability of the wind turbine tower is crucial, and the pre-tightening quality of the tower bolts directly affects the structural safety of the entire tower. The wind turbine tower bolt quick pre-tightening auxiliary device is a device used to assist in the pre-tightening of wind turbine tower bolts.

[0003] The wind turbine tower bolt quick pre-tightening auxiliary device mainly consists of a support base plate and a cylinder. The support base plate is firmly attached to the tower surface to provide reliable support for the device. The cylinder, as the core power component, adjusts the height. At the same time, the two work together to install the wind turbine bolts through accurate force control and structural coordination.

[0004] In the existing technology, some wind turbine tower bolt quick pre-tightening auxiliary devices mainly rely on traditional tools and manual operation, which has the problem of not being able to accurately position and pre-tighten bolts of different specifications. Since the bolt sizes and specifications used in different models of wind turbine towers are different, it not only reduces installation efficiency, but also affects installation convenience and stability. In order to address the above problems, a wind turbine tower bolt quick pre-tightening auxiliary device is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a rapid pre-tightening auxiliary device for wind turbine tower bolts, which aims to improve the problem that some existing devices cannot be positioned and pre-tightened simultaneously according to different bolts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A quick pre-tightening auxiliary device for wind turbine tower bolts includes a support base plate and an L-shaped support seat. The bottom of the L-shaped support seat is provided with a positioning mechanism, the top of the support base plate is provided with an adjustment mechanism, and a protective support shell is fixedly connected to the top of the L-shaped support seat. The positioning mechanism includes a supporting ring and a T-shaped support base. The bottom of the supporting ring is rotatably connected to the bottom of the L-shaped support base. A driving component is fixedly connected to the bottom of the supporting ring. Multiple short rotating rods are rotatably connected to the middle of the T-shaped support base. Two long rotating rods are rotatably connected to the two sides of the T-shaped support base. Fastening blocks are fixedly connected to the adjacent sides of the two long rotating rods. Fastening grooves are formed on the inner side of the fastening blocks. As a further description of the above technical solution: The drive assembly includes an electric telescopic column, the top of which is fixedly connected to the bottom of the support ring, and a fixed push plate is fixedly connected to the output end of the electric telescopic column. As a further description of the above technical solution: The adjacent sides of the plurality of rotating short rods rotate outside the fixed push plate, the top of the rotating long rod is rotatably connected to the adjacent sides of the plurality of rotating short rods, and a power assembly is fixedly connected to the top of the supporting ring; As a further description of the above technical solution: The power assembly includes a drive motor, which is externally fixedly connected to the top inner side of the L-shaped support base. The output end of the drive motor is fixedly connected to the inside of the support ring. A protective support shell is fixedly connected to the top of the L-shaped support base. As a further description of the above technical solution: The adjustment mechanism includes a support base, the bottom of which is fixedly connected to the top of the support base plate, and a cylinder is fixedly connected inside the support base. The drive end of the cylinder is fixedly connected to a support top plate. As a further description of the above technical solution: The top of the supporting top plate is fixedly connected to two slide rails b, the bottom of the two slide rails b is fixedly connected to the top of the supporting top plate, the top of the two slide rails b is fixedly connected to slide rail a, and the bottom of the L-shaped support base is fixedly connected to the top of slide rail a. As a further description of the above technical solution: The supporting top plate has two sliding grooves inside, and an isolation fixing plate is fixedly connected inside the two sliding grooves. As a further description of the above technical solution: The L-shaped support base has a detection head fixedly connected inside, and the detection head has a protective cover fixedly connected outside.

[0007] This utility model has the following beneficial effects: 1. In this utility model, the electric telescopic column is activated, driving the fixed push plate to move. While the fixed push plate is extended and retracted, it drives two short rotating rods to rotate. At the same time, the long rotating rod rotates, and the fastening groove moves accordingly, so that the bolt is locked inside the fastening groove for positioning. The drive motor is activated, driving the rotation, which enables the rapid positioning and pre-tightening of different bolts, improving the efficiency of pre-tightening operations for various bolts, effectively reducing operation steps, and enhancing the convenience and stability of the operation.

[0008] 2. In this utility model, the L-shaped support seat can be moved to different positions through the cooperation of slide rail b and slide rail a. The support fixing seat is protected and supported outside the cylinder. At the same time, the protective cover detects the position and suitability of the pre-tightening. The detection head protects the protective cover, thereby realizing multi-directional adjustment and detection during use. This not only realizes multi-directional adjustment during use, but also reduces damage to the equipment. Attached Figure Description

[0009] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0010] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a three-dimensional schematic diagram of an auxiliary device for rapid pre-tightening of tower bolts of a wind turbine generator set proposed in this utility model; Figure 2 This is a detailed structural schematic diagram of an auxiliary device for rapid pre-tightening of tower bolts for wind turbine generators proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0012] The components include: 1. Support base plate; 2. Support fixing seat; 3. Cylinder; 4. Support top plate; 5. L-shaped support seat; 6. Protective support shell; 7. Support ring; 8. T-shaped support seat; 9. Electric telescopic column; 10. Rotating short rod; 11. Rotating long rod; 12. Fastening block; 13. Fastening groove; 14. Fixed push plate; 15. Drive motor; 16. Slide rail a; 17. Slide rail b; 18. Slide groove; 19. Isolation fixing plate; 20. Protective cover; 21. Detection head. Detailed Implementation

[0013] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0014] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0015] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 This is a three-dimensional schematic diagram of an auxiliary device for rapid pre-tightening of tower bolts for wind turbine generators, as proposed in this utility model. Figure 2 This is a detailed structural diagram illustrating an auxiliary device for rapid pre-tightening of tower bolts in a wind turbine generator set, as proposed in this utility model. Figure 3 for Figure 2 Enlarged view of point A in the middle. Figure 4 for Figure 2 The enlarged view at point B shows an embodiment of this utility model: a rapid pre-tightening auxiliary device for wind turbine tower bolts, comprising a support base plate 1 and an L-shaped support seat 5. The support base plate 1 serves as the basic support component of the entire rapid pre-tightening auxiliary device for wind turbine tower bolts. A positioning mechanism is provided at the bottom of the L-shaped support seat 5. The L-shaped support seat 5 is a key component connecting the positioning mechanism, the power component, and the adjustment mechanism. Simultaneously, under the action of the adjustment mechanism, its position can be moved, thereby adjusting the working position of the entire pre-tightening device. The positioning mechanism includes a support ring 7 and a T-shaped support seat 8. The support ring 7 serves as a key rotating component of the positioning mechanism. The L-shaped support base 5 and the drive assembly are connected to realize the rotational movement of the drive assembly, thereby driving the fastening block 12 and other components to rotate and position the bolt. The bottom of the support ring 7 is rotatably connected to the bottom of the L-shaped support base 5. When the drive motor 15 in the power assembly is started, the output end of the drive motor 15 drives the support ring 7 to rotate at the bottom of the L-shaped support base 5. When the support ring 7 rotates, it drives the electric telescopic column 9 and other components fixedly connected to its bottom to rotate together, thereby causing the fastening block 12 to rotate and position around the bolt. The bottom of the support ring 7 is rotatably connected to the bottom of the L-shaped support base 5, and the drive assembly is fixedly connected to the bottom of the support ring 7. The drive assembly includes an electric telescopic column 9, which serves as the power actuator for the positioning mechanism. Through its telescopic movement, the electric telescopic column 9 drives the fixed push plate 14, which in turn drives the rotating short rod 10 and the rotating long rod 11 to rotate, thus achieving the positioning operation of the bolt. The top of the electric telescopic column 9 is fixedly connected to the bottom of the support ring 7, and the output end of the electric telescopic column 9 is fixedly connected to the fixed push plate 14. Multiple rotating short rods 10 are rotatably connected inside the middle of the T-shaped support base 8. The T-shaped support base 8 provides a support structure for the installation and rotation of the rotating short rods 10 and the rotating long rod 11. Through cooperation with these rotating rods, the linear motion of the electric telescopic column 9 is converted into the rotational motion of the fastening block 12, achieving the positioning of the bolt in the fastening groove 13. Two rotating long rods 11 are rotatably connected inside the two sides of the T-shaped support base 8. A fastening block 12 is fixedly connected to one side of the fastener. The bolt is clamped by the fastening groove 13 opened on the inner side, thereby positioning the bolt. At the same time, driven by the drive motor 15, the fastener and the fastening groove 13 together perform a pre-tightening operation on the bolt. The fastening block 12 has a fastening groove 13 opened on the inner side. Multiple rotating short rods 10 are rotated on one side of the fixed push plate 14, serving as a connecting part between the electric telescopic column 9 and the rotating short rods 10. The linear motion of the electric telescopic column 9 is transmitted to the rotating short rods 10, pushing the rotating short rods 10 to rotate, thereby positioning the bolt by the fastening block 12 and the fastening groove 13. The bolt rotates under the push of the electric telescopic column 9, transmitting the linear motion of the electric telescopic column 9 to the rotating long rod 11, driving the rotating long rod 11 to rotate, thereby rotating the fastening block 12 and the fastening groove 13, and positioning the bolt. The top of the rotating long rod 11 is rotatably connected to one side of multiple rotating short rods 10. It rotates under the drive of the rotating short rods 10, which in turn drives the fastening block 12 to rotate. This causes the fastening groove 13 on the inner side of the fastening block 12 to lock the bolt, thereby positioning the bolt and providing a basis for subsequent pre-tightening operations. The top of the supporting ring 7 is fixedly connected to a power component, which includes a drive motor 15. The external part of the drive motor 15 is fixedly connected to the top inner side of the L-shaped support base 5, and the output end is fixedly connected to the inside of the supporting ring 7. When the drive motor 15 receives a start signal, the rotor inside the motor begins to rotate under the action of electromagnetic force. The rotational power is transmitted to the support ring 7 through the output shaft, causing the support ring 7 to rotate around its rotation center. When the support ring 7 rotates, it causes the fastening block 12 and fastening groove 13 connected to it to rotate around the bolt, applying a pre-tightening force to the bolt. The drive motor 15 is externally fixedly connected to the top inner side of the L-shaped support base 5, and the output end of the drive motor 15 is fixedly connected to the inside of the support ring 7. The top of the L-shaped support base 5 is fixedly connected to a protective support shell 6, and the top of the support base 1 is provided with an adjustment mechanism. The top of the L-shaped support base 5 is fixedly connected to a protective support shell 6.

[0016] Reference Figures 1 to 3The adjustment mechanism includes a support base 2, which is used to fix and support the cylinder 3, providing a stable mounting base for the cylinder 3. It also transmits the force of the cylinder 3 to the support base 1, ensuring stable operation of the adjustment mechanism. The bottom of the support base 2 is fixedly connected to the top of the support base 1. The cylinder 3 is fixedly connected inside the support base 2. The cylinder 3 serves as the power actuator of the adjustment mechanism, driving the support top plate 4 to move up and down through telescopic movement, thereby adjusting the vertical position of the L-shaped support 5 to accommodate bolt pre-tightening at different heights. The drive end of the cylinder 3 is fixedly connected to the support top plate 4. The support top plate 4 connects the cylinder 3 to slide rails b17 and a16, transmitting the telescopic movement of the cylinder 3 to slide rails b17 and a16, thereby driving the L-shaped support 5 to move in different directions, achieving position adjustment of the L-shaped support 5. Two slide rails b17 are fixedly connected to the top of the support top plate 4, and the bottoms of the two slide rails b17 are fixedly connected to the top of the support top plate 4.

[0017] Slide rail a16 is fixedly connected to the top of the two slide rails b17. Slide rail a16 cooperates with slide rail b17 to provide a horizontal moving track for the L-shaped support 5, allowing the L-shaped support 5 to be adjusted in the horizontal direction to accommodate bolt pre-tightening work at different positions. The bottom of the L-shaped support 5 is fixedly connected to the top of slide rail a16. Two slide grooves 18 are opened inside the support top plate 4. The slide grooves 18 provide space for the installation and movement of the isolation fixing plate 19, while also separating and protecting the internal structure of the support top plate 4 to ensure the normal operation of the internal components of the adjustment mechanism. Isolation fixing plates 19 are fixedly connected inside the two slide grooves 18 and installed in the slide grooves. Inside the 18, the internal structure of the supporting top plate 4 is separated to prevent mutual interference between different components, while also enhancing the structural strength of the supporting top plate 4 and ensuring the stable operation of the adjustment mechanism. The L-shaped support base 5 has a detection head 21 fixedly connected inside. The detection head 21 is the core of the entire detection device and is mainly used to detect the pre-tightening status of the wind turbine tower bolts in real time. The detection head 21 is fixedly connected to a protective cover 20 on the outside. The protective cover 20 can resist the corrosion and damage of the detection head 21 by external environmental factors, ensuring that the detection head 21 can still operate normally in harsh working environments, extending the service life of the detection head 21, and ensuring the accuracy and reliability of the detection data.

[0018] Working principle: First, when the electric telescopic column 9 starts to retract, the fixed push plate 14 is fixed. Through leverage, the rotating short rod 10 and rotating long rod 11 on the T-shaped support 8 rotate in linkage. The rotating long rod 11 drives the fastening block 12 to rotate, so that the fastening groove 13 on its inner side accurately engages the bolt. During this process, the support ring 7 remains stationary to ensure the stability of the positioning action. Conversely, when the electric telescopic column 9 starts to push, it quickly loosens. The drive motor 15 starts to drive the support ring 7 to rotate. The electric telescopic column 9 transmits torque to the fastening block 12. During the rotation, the fastening groove 13 applies continuous torque to the bolt to complete the pre-tightening operation. This improves the efficiency of pre-tightening operations for various bolts, effectively reduces operation steps, and enhances the convenience and stability of the operation.

[0019] At this time, the adjustment system composed of slide rail a16 and slide rail b17 remains in a locked position to avoid displacement interfering with the pre-tightening accuracy. The operator drives the support top plate 4 to rise and fall vertically through the cylinder 3, which drives slide rail a16 and slide rail b17 to move the L-shaped support seat 5 horizontally to the target bolt area. The isolation fixing plate 19 in the slide groove 18 spatially separates the internal structure of the support top plate 4 to ensure the stable operation of the slide rail system. The protective support shell 6 protects the drive motor 15. At the same time, the detection head 21 collects bolt position parameters in real time under the shield of the protective cover 20. The detection head 21 monitors the bolt pre-tightening torque value in real time through the window of the protective cover 20. This not only realizes multi-directional adjustment during use, but also reduces equipment damage.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quick pre-tightening auxiliary device for wind turbine tower bolts, comprising a support base plate (1) and an L-shaped support seat (5), characterized in that: The bottom of the L-shaped support base (5) is provided with a positioning mechanism, the top of the support base plate (1) is provided with an adjustment mechanism, and the top of the L-shaped support base (5) is fixedly connected with a protective support shell (6). The positioning mechanism includes a support ring (7) and a T-shaped support base (8). The bottom of the support ring (7) is rotatably connected to the bottom of the L-shaped support base (5). A drive assembly is fixedly connected to the bottom of the support ring (7). Multiple short rotating rods (10) are rotatably connected to the middle of the T-shaped support base (8). Two long rotating rods (11) are rotatably connected to the two sides of the T-shaped support base (8). Fastening blocks (12) are fixedly connected to the adjacent side of the two long rotating rods (11). Fastening grooves (13) are opened on the inner side of the fastening blocks (12).

2. The auxiliary device for rapid pre-tightening of wind turbine tower bolts according to claim 1, characterized in that: The drive assembly includes an electric telescopic column (9), the top of which is fixedly connected to the bottom of the support ring (7), and the output end of which is fixedly connected to a fixed push plate (14).

3. The auxiliary device for rapid pre-tightening of wind turbine tower bolts according to claim 2, characterized in that: The adjacent sides of the plurality of rotating short rods (10) rotate outside the fixed push plate (14), the top of the rotating long rod (11) is rotatably connected to the adjacent sides of the plurality of rotating short rods (10), and the top of the supporting ring (7) is fixedly connected to a power assembly.

4. The auxiliary device for rapid pre-tightening of wind turbine tower bolts according to claim 3, characterized in that: The power assembly includes a drive motor (15), which is externally fixedly connected to the top inner side of the L-shaped support base (5). The output end of the drive motor (15) is fixedly connected to the inside of the support ring (7). A protective support shell (6) is fixedly connected to the top of the L-shaped support base (5).

5. The auxiliary device for rapid pre-tightening of wind turbine tower bolts according to claim 1, characterized in that: The adjustment mechanism includes a support base (2), the bottom of which is fixedly connected to the top of the support base plate (1), and a cylinder (3) is fixedly connected inside the support base (2). The drive end of the cylinder (3) is fixedly connected to a support top plate (4).

6. The auxiliary device for rapid pre-tightening of wind turbine tower bolts according to claim 5, characterized in that: The top of the supporting top plate (4) is fixedly connected to two slide rails b (17), the bottom of the two slide rails b (17) is fixedly connected to the top of the supporting top plate (4), the top of the two slide rails b (17) is fixedly connected to slide rail a (16), and the bottom of the L-shaped support seat (5) is fixedly connected to the top of slide rail a (16).

7. The auxiliary device for rapid pre-tightening of wind turbine tower bolts according to claim 5, characterized in that: The supporting top plate (4) has two sliding grooves (18) inside, and the two sliding grooves (18) are fixedly connected to the isolation fixing plate (19).

8. The auxiliary device for rapid pre-tightening of wind turbine tower bolts according to claim 1, characterized in that: The L-shaped support base (5) is internally fixedly connected to a detection head (21), and the detection head (21) is externally fixedly connected to a protective cover (20).

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