A wind turbine blade pre-embedded bolt installation and replacement integrated machine

Abstract

This utility model relates to the technical field of clean energy equipment, and in particular to an integrated machine for installing and replacing pre-embedded bolts on wind turbine blades. It uses a pushing device to connect the main body of the equipment to the root of the blade body, and an installation device to push the pre-embedded bolts one by one into the pre-embedded positions on the blade body, improving the automation level of the device. An auxiliary device guides the bolt pushing process, reducing collision damage between the bolt ends and the blade body, thus improving the practicality of the device. The machine includes a pushing device, an installation device, and an auxiliary device, with the installation device mounted on the pushing device and the auxiliary device mounted on the pushing device.

Description

Technical Field

[0001] This utility model relates to the technical field of clean energy equipment, and in particular to an integrated machine for installing and replacing pre-embedded bolts on wind turbine blades. Background Technology

[0002] With the rapid development of the wind power industry in recent years, my country has entered the era of grid parity wind power. The wind turbine blade industry must achieve the goal of improving quality and efficiency as soon as possible, reduce production costs, and improve production efficiency and quality. In the process of manufacturing wind turbine blades, high-strength bolts are precisely pre-embedded at the designated position at the root of the blade to ensure that the bolts are tightly connected to the blade structure and meet the requirements for subsequent connection with the hub.

[0003] The prior art Chinese utility model patent with application number CN202210140039.8 relates to a method for removing pre-embedded bolts from wind turbine blades and its automatic removal machine, including a frame, a hydraulic lifting device, a fixing device, a drive motor, a rotating device and a rotating boom, etc. It can achieve a fixed angle for each rotation through a stroke magnetic strip and a sensor, accurately corresponding to the position of each bolt hole.

[0004] However, in actual use, the above-mentioned device does not have the ability to push and install the pre-embedded bolts one by one. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a wind turbine blade pre-embedded bolt installation and replacement integrated machine that completes the docking of the main body of the equipment with the root of the blade body through a pushing device, pushes the pre-embedded bolts one by one to the pre-embedded position of the blade body through an installation device, thereby improving the automation level of the device, and uses an auxiliary device to guide the pushing process of the bolts to reduce the collision damage between the bolt ends and the blade body, thereby improving the practicality of the device.

[0006] This utility model discloses an integrated machine for installing and replacing pre-embedded bolts on wind turbine blades. It includes a pushing device, an installation device, and an auxiliary device. The installation device is mounted on the pushing device, and the auxiliary device is also mounted on the pushing device. The pushing device completes the connection between the main body of the equipment and the root of the blade body. The installation device pushes the pre-embedded bolts one by one into the pre-embedded positions on the blade body, which improves the automation level of the device. The auxiliary device provides guidance during the bolt pushing process, reducing collision damage between the bolt ends and the blade body, and improving the practicality of the device.

[0007] Preferably, the pushing device includes a main support frame, a docking frame, guide support rods, a lead screw, a nut, and a geared motor. A set of guide support rods is mounted on the lower left and right sides of the main support frame via brackets. The two sets of guide support rods pass through the lower left and lower right parts of the docking frame, respectively. A lead screw is horizontally mounted in the middle of the main support frame and connected to the lower part of the docking frame via a nut. A geared motor is mounted on the side of the main support frame, and its output end is connected to the lead screw. Turning on the geared motor transmits power to the lead screw, causing it to rotate. The rotating lead screw, in conjunction with the nut, moves the docking frame back and forth laterally on the main support frame, completing the docking and separation with the root of the fan blade body. This facilitates bolt installation with the mounting device and improves the practicality of the device.

[0008] Preferably, the installation device includes a circular guide rail, an electric slider, bolt placement slots, and a first electric cylinder. A circular guide rail is provided on the rear end face of the docking frame, and an electric slider is mounted on the circular guide rail. A first electric cylinder is mounted on the rear end face of the electric slider via a bracket. Multiple sets of bolt placement slots are evenly distributed on the front end face of the docking frame, and circular holes are provided at the rear of the bolt placement slots, communicating with the front end face of the docking frame. Pre-embedded bolts are placed one by one into the multiple sets of bolt placement slots. During the installation of the pre-embedded bolts, the electric slider is controlled to move on the circular guide rail to the positions of different circular holes. By controlling the extension of the first electric cylinder, the bolts in the bolt placement slots are pushed to the pre-embedded positions at the root of the fan blade body. This improves the continuous operation capability and operating efficiency of the device, and enhances its practicality.

[0009] Preferably, the auxiliary device includes a first rotating shaft seat, a second electric cylinder, a support shaft, a rotating arm, a second rotating shaft seat, and a support head. The first rotating shaft seat is installed at the rear of the bracket at the rear end face of the electric slider, and the support shaft is installed at the lower part of the bracket at the rear end face of the electric slider. The rotating arm is mounted on the support shaft via bearings. The second rotating shaft seat is located at the rear of the rotating arm. The fixed end of the second electric cylinder is installed on the rotating side of the first rotating shaft seat, and the moving end of the second electric cylinder is installed on the rotating side of the second rotating shaft seat. A rectangular groove is provided on the lower end face of the bolt placement groove, and a support head is provided at the front of the rotating arm. The support head is located in a rectangular groove below the bolt placement slot. By controlling the extension of the second electric cylinder, the main body of the rotating arm is rotated, thereby controlling the lifting or lowering of the support head. When pushing the bolt, the support head is raised to provide auxiliary support to the bolt thread, thus maintaining the horizontality of the bolt body and reducing collision losses between the bolt and the fan blade caused by the tilting of the bolt body, improving the stability of the device. When the installation device moves to change the working position, the support head is lowered to disengage from the rectangular groove below the bolt placement slot, avoiding movement interference and improving the practicality of the device.

[0010] Preferably, it also includes a magnet and an arc-shaped groove. A magnet is installed on the upper end face of the support head, and an arc-shaped groove is provided on the upper end face of the magnet. The magnet assists in adsorbing the threaded part of the bolt, thereby adapting to the bolt placement groove in different positions to maintain the bolt level. The arc-shaped groove allows the threaded part of the bolt to better contact the magnet body, reducing adsorption offset and improving the practicality of the device.

[0011] Preferably, it also includes a pressure switch, which is installed on the moving end of the second electric cylinder. The pressure switch monitors the pressure on the moving end of the second electric cylinder. When the bolt head contacts the support head, the rotating arm vibrates. When the pressure switch senses that the pressure is greater than the preset value, it controls the second electric cylinder to contract and drive the support head to fall, thereby reducing the wear between the support head and the bolt head and improving the practicality of the device.

[0012] Preferably, it also includes an electromagnet, which is installed on the moving end of the first electric cylinder; by activating the electromagnet in conjunction with the extension and retraction of the first electric cylinder, the installed bolt is attracted and brought out of the pre-embedded hole, making it convenient for the operator to replace the problematic bolt and improving the practicality of the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the connection between the main body of the equipment and the root of the fan blade body is completed by the pushing device, and the pre-embedded bolts are pushed one by one into the pre-embedded position of the fan blade body by the installation device, which improves the automation level of the device. The auxiliary device provides auxiliary guidance for the pushing process of the bolts, reducing the collision damage between the bolt ends and the fan blade body, and improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first isometric structure of this utility model; Figure 2 This is a schematic diagram of the second isometric structure of this utility model; Figure 3 This is a first cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the second cross-sectional structure of this utility model; The following are labels in the attached diagram: 1. Main support frame; 2. Connecting frame; 3. Guide support rod; 4. Lead screw; 5. Nut; 6. Gear motor; 7. Circular guide rail; 8. Electric slider; 9. Bolt placement slot; 10. First electric cylinder; 11. First rotating shaft seat; 12. Second electric cylinder; 13. Support shaft; 14. Rotating arm; 15. Second rotating shaft seat; 16. Support head; 17. Magnet; 18. Arc-shaped groove; 19. Pressure switch; 20. Electromagnet. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0016] Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the installation device is mounted on the pushing device, and the auxiliary device is mounted on the pushing device; First, the pre-embedded bolts are placed one by one into the multiple sets of bolt placement slots 9. Then, the reduction motor 6 is turned on to transmit power to the lead screw 4, which drives the lead screw 4 to rotate. The rotating lead screw 4, in conjunction with the nut 5, drives the docking frame 2 to move back and forth laterally on the main support frame 1 to complete the docking with the root of the fan blade body. Then, the electric slider 8 is controlled to move on the circular guide rail 7 to the positions of different circular holes. By controlling the extension of the first electric cylinder 10, the bolts in the bolt placement slots 9 are pushed to the pre-embedded positions at the root of the fan blade body. During the pushing process, the extension of the second electric cylinder 12 is controlled to drive the rotating arm 14 to rotate, thereby controlling the support head 16 to rise or fall. When pushing the bolts, the support head 16 is controlled to rise to provide auxiliary support for the bolt thread part, thereby maintaining the horizontality of the bolt body. The pushing device includes a main support frame 1, a docking frame 2, guide support rods 3, a lead screw 4, a nut 5, and a geared motor 6. A set of guide support rods 3 are installed on the lower left and right sides of the main support frame 1 through brackets. The two sets of guide support rods 3 pass through the lower left and lower right parts of the docking frame 2, respectively. A lead screw 4 is horizontally installed in the middle of the main support frame 1. The lead screw 4 is connected to the lower part of the docking frame 2 through the nut 5. A geared motor 6 is installed on the side of the main support frame 1. The output end of the geared motor 6 is connected to the lead screw 4. The installation device includes a circular guide rail 7, an electric slider 8, a bolt placement groove 9, and a first electric cylinder 10. The circular guide rail 7 is provided on the rear end face of the docking frame 2. The electric slider 8 is installed on the circular guide rail 7. The first electric cylinder 10 is installed on the rear end face of the electric slider 8 through a bracket. Multiple sets of bolt placement grooves 9 are evenly provided on the front end face of the docking frame 2. The rear part of the bolt placement groove 9 is provided with a circular hole that communicates with the front end face of the docking frame 2. The auxiliary device includes a first rotating shaft seat 11, a second electric cylinder 12, a support shaft 13, a rotating arm 14, a second rotating shaft seat 15, and a support head 16. The first rotating shaft seat 11 is installed at the rear of the bracket at the rear end face of the electric slider 8, and the support shaft 13 is installed at the lower part of the bracket at the rear end face of the electric slider. The rotating arm 14 is mounted on the support shaft 13 through a bearing. The second rotating shaft seat 15 is provided at the rear of the rotating arm 14. The fixed end of the second electric cylinder 12 is installed on the rotating side of the first rotating shaft seat 11, and the moving end of the second electric cylinder 12 is installed on the rotating side of the second rotating shaft seat 15. A rectangular groove is provided on the lower end face of the bolt placement groove 9, and a support head 16 is provided at the front of the rotating arm 14. The support head 16 is located in the rectangular groove at the lower part of the bolt placement groove 9. It also includes a magnet 17 and an arc-shaped groove 18. A magnet 17 is installed on the upper end surface of the support head 16, and an arc-shaped groove 18 is provided on the upper end surface of the magnet 17. It also includes a pressure switch 19, which is installed on the moving end of the second electric cylinder 12; It also includes an electromagnet 20. An electromagnet 20 is installed on the moving end of the first electric cylinder 10. The device completes the docking of the main body of the equipment with the root of the fan blade body through the pushing device. The installation device pushes the pre-embedded bolts one by one into the pre-embedded position of the fan blade body, which improves the automation level of the device. The auxiliary device guides the bolt pushing process, reduces the collision damage between the bolt end and the fan blade body, and improves the practicality of the device.

[0017] like Figures 1 to 4 As shown, this utility model discloses an integrated machine for installing and replacing pre-embedded bolts on wind turbine blades. During operation, the pre-embedded bolts are first placed one by one into multiple bolt placement slots 9. Then, the reduction motor 6 is activated to transmit power to the lead screw 4, causing it to rotate. The rotating lead screw 4, in conjunction with the nut 5, drives the docking frame 2 to move laterally back and forth on the main support frame 1, completing the docking with the root of the blade body. Afterward, the electric slider 8 is controlled to move on the circular guide rail 7 to different circular hole positions. By controlling the extension of the first electric cylinder 10, the bolts in the bolt placement slots 9 are pushed to the pre-embedded positions at the root of the blade body. During the pushing process, the extension of the second electric cylinder 12 drives the rotating arm 14 to rotate, thereby controlling the support head 16 to rise or fall. When pushing the bolts, the support head 16 is raised to provide auxiliary support to the bolt thread, thus maintaining the horizontality of the bolt body.

[0018] The first electric cylinder 10, electric slider 8, geared motor 6, electromagnet 20, and second electric cylinder 12 of this utility model wind turbine blade pre-embedded bolt installation and replacement integrated machine are commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0019] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A machine for installing and replacing pre-embedded bolts on wind turbine blades; characterized in that, It includes a pushing device, an installation device, and an auxiliary device. The installation device is installed on the pushing device, and the auxiliary device is installed on the pushing device. The pushing device includes a main support frame (1), a docking frame (2), a guide support rod (3), a lead screw (4), a nut (5), and a geared motor (6). A set of guide support rods (3) are installed on the lower left and right sides of the main support frame (1) through brackets. The two sets of guide support rods (3) pass through the lower left and lower right parts of the docking frame (2) respectively. A lead screw (4) is installed horizontally in the middle of the main support frame (1). The lead screw (4) is connected to the lower part of the docking frame (2) through a nut (5). A geared motor (6) is installed on the side of the main support frame (1). The output end of the geared motor (6) is connected to the lead screw (4). The installation device includes a circular guide rail (7), an electric slider (8), a bolt placement groove (9), and a first electric cylinder (10). A circular guide rail (7) is provided on the rear end face of the docking frame (2). An electric slider (8) is installed on the circular guide rail (7). A first electric cylinder (10) is installed on the rear end face of the electric slider (8) through a bracket. Multiple sets of bolt placement grooves (9) are evenly provided on the front end face of the docking frame (2). A circular hole is provided at the rear of the bolt placement groove (9) and communicates with the front end face of the docking frame (2). The auxiliary device includes a first rotating shaft seat (11), a second electric cylinder (12), a support shaft (13), a rotating arm (14), a second rotating shaft seat (15), and a support head (16). The first rotating shaft seat (11) is installed at the rear of the bracket at the rear end of the electric slider (8). The support shaft (13) is installed at the lower part of the bracket at the rear end of the electric slider (8). The rotating arm (14) is mounted on the support shaft (13) through a bearing. The second rotating shaft seat (15) is provided at the rear of the rotating arm (14). The fixed end of the second electric cylinder (12) is installed on the rotating side of the first rotating shaft seat (11). The moving end of the second electric cylinder (12) is installed on the rotating side of the second rotating shaft seat (15). A rectangular groove is provided on the lower end face of the bolt placement groove (9). The support head (16) is provided at the front of the rotating arm (14). The support head (16) is located in the rectangular groove at the lower part of the bolt placement groove (9).

2. The integrated machine for installing and replacing pre-embedded bolts on wind turbine blades as described in claim 1, characterized in that, It also includes a magnet (17) and an arc-shaped groove (18). The magnet (17) is installed on the upper end surface of the support head (16), and the arc-shaped groove (18) is provided on the upper end surface of the magnet (17).

3. The integrated machine for installing and replacing pre-embedded bolts on wind turbine blades as described in claim 2, characterized in that, It also includes a pressure switch (19), which is installed on the moving end of the second electric cylinder (12).

4. The integrated machine for installing and replacing pre-embedded bolts on wind turbine blades as described in claim 3, characterized in that, It also includes an electromagnet (20), which is installed on the moving end of the first electric cylinder (10).

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