Vertical measuring device for wind turbines

Abstract

A vertical measuring device for wind turbines, removable on a climbing ladder (2) inside the tower (1) of the wind turbine, with sliding adjustment along the climbing ladder (2), characterized by the mounting plate (5), on which the first plate (6) and the second plate (7) are mounted, the first plate (6) is fixed on the said mounting plate (5), the second plate (7) is actively mounted on the mounting plate (5), the first plate (6) and the second plate (7) are set straight, the ladder frame of the climbing ladder (2) is arranged between the first plate (6) and the second plate (7), the sliding adjustment on the mounting plate (5) with a mounting bracket (14), the mounting bracket (14) to the inner wall of the tower (1), the mounting bracket (14) with two linear displacement sensors (20), two linear displacement sensors (20) upward and downward distribution adjustment,the measuring end of the linear displacement sensor (20) towards the inner wall of the tower (1), a linear displacement sensor (20) Along the radial adjustment of the mounting bracket (14) an electronic inclinometer (21) is also arranged on the mounting bracket (14), which is located between the two aforementioned linear displacement sensors (20).

Description

TECHNICAL FIELD

[0001] This utility model belongs to the field of inspection equipment for wind turbines and relates in particular to a vertical measuring device for wind turbines. BACKGROUND OF THE INVENTION

[0002] To extend the service life of wind turbines and ensure their safe operation, regular inspection of the tower's verticality can detect potential problems in a timely manner and avoid major repairs or component replacements caused by minor problems. In existing technology, regular maintenance of wind turbines is performed on the outside of the tower. Devices such as theodolites and laser rangefinders are used based on the detection points marked on the tower. This detection method cannot work well in extreme weather conditions such as strong wind, rain, snow, and haze, nor can it detect the tower's verticality in real time. Furthermore, detection personnel must perform high-altitude operations, which increases the safety risks of operation. SUMMARY OF THE INVENTION

[0003] The purpose of this utility model is to propose a device for measuring the verticality of wind turbines to solve the problems of the inability to measure the verticality of wind turbines well under adverse weather conditions and the difficulties in measuring the local deformation of tower tubes in the existing technology.

[0004] In order to achieve the above-mentioned objectives, the present utility model adopts the following technical solution: a vertical measuring device for wind turbines, which can be removably installed on a climbing ladder inside the tower of the wind turbine, and can be slid along the ladder, comprising an installation plate, the installation plate being provided with a first card plate and a second card plate, the first card plate being fixedly installed on the installation plate, and the second card plate being movable on the installation plate, the first card plate and the second card plate being directly arranged, and the ladder of the climbing frame is located between the first and second mounting plates arranged on the mounting plate.The linear displacement sensor is arranged radially along the installation arc rod, and an electronic inclinometer is also installed on the installation arc rod, which is located between the two linear displacement sensors.

[0005] To further describe the above-mentioned technical solution: The mounting plate is provided with a fixed plate and a sliding groove, and the second card plate is provided with an adjustment bolt that rotates away from the face of the first card plate. The adjustment bolt is threaded onto the fixed plate, and a sliding block is fixedly provided on the second card plate, which slides into the sliding groove.

[0006] As a further description of the above-mentioned technical solution, rollers are provided on the opposite sides of the first and second card plates.

[0007] As a further description of the above technical solution: the mounting plate is also provided with a limited position switch, the mounting plate is opened on the side of the climbing stairs with a mounting slot, the rotation of the limited position switch is adjusted in the mounting slot, the limited position switch corresponds to the step of the climbing stairs and the rotation axis of the limited position switch is provided with a spring.

[0008] As a further description of the above technical solution: the mounting plate is provided with a guide seat far from the stair side, the mounting arch rod is provided with a curved hole, the curved holes are matched with the guide seat, the mounting arch rod is fixedly provided with a rotary block, the electronic inclinometer is provided on the rotary block, the mounting rod is provided on the rotary block, the two mounting rods are adjusted symmetrically via the rotary block, the linear displacement sensor is provided at the end of the mounting rod far from the rotary block.

[0009] As a further description of the above-mentioned technical embodiment: On the steering seat, drive elements are also provided which serve to move the mounting bow rod along the steering seat, wherein the drive elements comprise a drive motor, a drive gear and a curved tooth, wherein the curved tooth is fastened to the inner wall of the mounting bow rod, wherein the drive gears are in connection with the curved tooth, wherein the drive motor is fastened to the steering seat and the drive gears are coaxially fastened to the output axis of the drive motor.

[0010] As a further description of the above-mentioned technical solution, the end of the measuring rod of the linear position sensor is provided with a contact switch.

[0011] In summary, the positive effects of the present utility model due to the adoption of the above-mentioned technical solution are: (1) The wind turbine verticality meter in this application is used to measure the verticality of wind turbines within the tower, so it is not affected by weather conditions. This application can also measure the local deformation status and situation of the tower. (2) By using a ladder to move along the inner wall of the tower, it is not limited to fixed measurement points and can measure more positions as needed. At the same time, it can measure the tower's status in real time under adverse weather conditions. The installed arc rod can move along the perimeter of the tower and can measure multiple different positions on the same section of the tower. (3) The rollers installed on the opposite sides of the first and second pallets reduce sliding friction and facilitate the movement of the installation board. The limit plate installed on the installation board can prevent the installation board and its components from sliding down the ladder frame. LIST OF FIGURES Fig. 1 is a schematic diagram of the three-dimensional structure in use state; Fig. 2 is an enlarged view of point A in Fig. 1; Fig. 3 is a schematic diagram of the three-dimensional structure of the present utility model; Fig. 4 is a schematic diagram of the three-dimensional structure of the present utility model without showing the climbing ladder; Fig. Figure 5 is a schematic diagram of the three-dimensional structure of the present utility model from a different angle.

[0012] Reference symbols: 1. Tower; 2. Staircase; 3. Cascades; 4. Ladder frame; 5. Installation board; 6. The first card board; 7. Second card board; 8. Sliding roller; 9. Fixed plate; 10. Adjust the bolt; 11. Sliding block; 12. Sliding groove; 13. Limit plate; 14. Arc bar assembly; 15. Guide seat; 16. Arc-shaped hole; 17. Pivot block; 18. Rotating seat; 19. Assembly mast; 20. Linear displacement sensor; 21. Electronic inclinometer; 22. Drive motor; 23. Drive gear; 24. Bent gear; 25. Contact switch. DETAILED DESCRIPTION OF THE FIGURES

[0013] In the following, a clear and complete description of the technical solution in the embodiments of the present utility model is given on the basis of the attached Fig.1-5. Obviously, the described embodiments are only a portion of the embodiments of the present utility model, not all of them. Based on the embodiments in this utility model, all other embodiments that ordinary skilled persons in this field obtain without creative effort fall within the scope of this utility model.

[0014] The present utility model provides a technical solution for measuring the verticality of a wind turbine.

[0015] A verticality meter for wind turbines that can be removably installed on the ladder 2 inside the wind turbine tower 1. The ladder 2 inside the wind turbine is arranged vertically along the axis of the tower 1. When the tower 1 remains vertical, the ladder 2 remains vertical, and the wind turbine verticality meter slides along the ladder 2.

[0016] The verticality measuring device for wind turbines includes an installation plate 5 located between the ladder 2 and the inner wall of the tower 1. The installation plate 5 is arranged vertically, and the installation plate 5 is equipped with a first card plate 6 and a second card plate 7. The first card plate 6 is fixedly arranged on the installation plate 5, and the second card plate 7 is movable on the installation plate 5. Specifically, the installation plate 5 is equipped with a fixed plate 9 and a sliding groove 12. The end face of the second card plate 7, which rotates away from the first card, is equipped with a set screw provided with a fixed thread. The second card plate 7 is equipped with a sliding plate 7, which is equipped with a sliding plate 6.The first card board 6 and the second card board 7 are arranged opposite each other, and the ladder frame 4 of the climbing ladder 2 is located between the first card board 6 and the second card board 7. Roller casters are arranged on the opposite sides of the first card board 6 and the second card board 7. When the installation plate 5 is installed on the climbing ladder 2, the rolling casters are in contact with the ladder frame 4 of the climbing ladder 2.

[0017] The specific process of installing the installation plate 5 is to first turn the adjusting screw 10 to move the second card plate 7 away from the first card plate 6, then place the installation plate 5 on the lead frame 4 between the first card plate 6 and the second card plate 7, and finally turn the adjusting screw 10 to clamp the lead frame 4 between the first card plate 6 and the second card plate 7, but it can ensure that the installation plate 5 slides freely.

[0018] In order to prevent the mounting plate 5 from sliding down along the climbing step 2, a limiting plate 13 is also arranged on the mounting plate 5, which is open on the side of the climbing step 2 and has a mounting slot that rotates in the mounting slot, the limiting plate 13 corresponds to the step 3 of the climbing step 2 and the rotation axis of the limiting plate 13 is provided with a spring.Under the action of the torsion springs, the limit plate 13 remains vertical with the mounting plate 5. The limit plate 13 can rotate downward. When the mounting plate 5 moves upward, the limit plate 13 rotates downward under the action of the upper step 3. When it is completely moved beyond the step 3, the limit plate 13 returns to the vertical state with the mounting plate 5 under the action of the torsion springs. At this time, the mounting plate 5 will not fall downward under the action of the limit plate 13. In this embodiment, two limit plates 13 are set, and the two limit plates 13 are distributed upward and downward.

[0019] On the mounting plate 5, a sliding adjustment with a mounting bracket 14, a mounting bracket 14 to the inner wall of the tower cylinder 1, a mounting bracket 14 with two road displacement sensors 20, a distribution of two road displacement sensors 20 up and down, a measuring end of the road displacement sensor 20 to the inner wall of the tower cylinder 1, a road displacement sensor 20 along the radial adjustment of the mounting bracket 14 and an electron mirror meter 21 located between two road displacement sensors 20 is provided.

[0020] In particular, the mounting plate 5 is provided with a guide seat 15 far from the stair side 2, the mounting arch rod 14 is provided with a curved hole 16, the curved holes 16 are adapted to the guide seat 15, the axis of the mounting arch rod 14 coincides with the axis of the tower cylinder 1, which is held normally vertically, the mounting arch rod 14 is fixedly provided with a rotating block 17, the electronic inclinometer 21 is provided with a rotating seat 18, the electronic inclinometer 21 is provided with a rotating seat 18, the rotating block 17 is provided with a mounting rod 19, the two mounting rods 19 are provided symmetrically above and below with respect to the rotating block 17, the road displacement sensor 20 is provided with a contact switch at the end of the mounting rod 19 far from the rotating block 17, the measuring rod of the road displacement sensor 20 is provided with a contact switch 25,when the measuring rod moves to the side wall of the tower cylinder 1 after the start of the road displacement sensor 20, the switch 25 touches the inner wall of the cylinder 1 and records the measured values.

[0021] Also provided on the guide seat 15 is a drive element for moving the assembly bow rod 14 along the guide seat 15, consisting of a drive motor 22, a drive wheel 23 and a curved tooth 24 fixed to the inner wall of the assembly bow rod 14, a drive wheel 23 connected to a curved tooth 24, a drive motor 22 is fixed to the guide seat 15 and a drive wheel 23 coaxially to the output axis of the drive motor 22.

[0022] During the measurement, when the mounting plate 5 moves along the climbing stage 2 in the turret cylinder 1, the vertical state of the climbing stage 2 can be detected according to the numerical parameters of the electronic inclinometer 21, then two rectilinear displacement sensors 20 are turned on, the distance from the side wall of the turret cylinder 1 is measured, the distance of the two known rectilinear displacement sensors 20, the measured data are combined to calculate the parameters of the turret cylinder 1 in this area, and then compared with the design parameters of the turret cylinder 1, specifically with the cone comparison of the turret cylinder 1, thus obtaining the transformation and inclination state of the local position.It should be noted that the electronic tilt meter 21 is used to measure the vertical state of the climbing stage 2, in combination with the parameters obtained from the road displacement sensor 20, to perform a holistic analysis, wherein multiple measuring points in combination with the analysis finally obtain the specific vertical state of the tower cylinder 1 for each section.

[0023] The above is only the better concrete implementation of this utility model, but the protection scope of this utility model is not limited to this, any technician who is familiar with this technology field should, within the scope of the technology that this utility model reveals, be replaced or modified in accordance with the technical program of this utility model and its utility model concept, fall within the protection scope of this utility model.

Claims

[1] A vertical measuring device for wind turbines, removable on a climbing staircase (2) inside the tower (1) of the wind turbine, with sliding adjustment along the climbing staircase (2), characterized bythe mounting plate (5), which is set on the mounting plate (5), the first plate (6) and the second plate (7), the first plate (6) is fixedly set on said mounting plate (5), the second plate (7) is actively set on the mounting plate (5), the first plate (6) and the second plate (7) are set straight, the ladder frame of the climbing ladder (2) is arranged between the first plate (6) and the second plate (7), the sliding adjustment on the mounting plate (5) with a mounting bracket (14), the mounting bracket (14) to the inner wall of the tower (1), the mounting bracket (14) with two linear displacement sensors (20), two linear displacement sensors (20) up and down distribution adjustment, the measuring end of the linear displacement sensor (20) to the inner wall of the tower (1),a linear displacement sensor (20) Along the radial adjustment of the mounting bow rod (14), an electronic inclinometer (21) is also arranged on the mounting bow rod (14), which is located between the two said linear displacement sensors (20). [2] A vertical measuring device for wind turbines according to claim 1, characterized by that: a fixed plate (9) and a sliding groove (12) are provided on the mounting plate (5), and an adjusting screw (10) is provided on the end face of the second card plate (7), which rotates away from the first card plate (6). The adjusting screw (10) is threaded to the fixed plate (9), and a sliding block (11) is fixedly provided on the second card plate (7), which slides into the sliding groove (12). [3] A vertical measuring device for wind turbines according to claim 1, characterized bythat roller rollers are provided on the opposite sides of the first card plate (6) and the second card plate (7). [4] A vertical measuring device for wind turbines according to claim 1, characterized by : on the said mounting plate (5) there is also mounted a limiting disc (13) which is open on the side of the climbing stairs (2) with a mounting slot, the limiting disc (13) is rotatably adjusted in the mounting slot, the limiting disc (13) corresponds to the step (3) of the climbing stairs (2) and a spring is mounted on the rotation axis of the limiting disc (13). [5] A vertical measuring device for wind turbines according to claim 1, characterized byin that: a guide seat (15) is provided on the side of the mounting plate (5) away from the ladder (2), an arcuate hole (16) is opened on the mounting arc rod (14), the arcuate hole (16) is adapted to the guide seat (15), a pivot block (17) is fixedly provided on the installation arc rod (14), an electronic inclinometer (21) is provided on the pivot block (17), an installation rod (19) is provided on the pivot block (17), two mounting rods (17) are symmetrically arranged (19) at one end of the installation block (17) and a pivot block (17) are symmetrically arranged. [6] A vertical measuring device for wind turbines according to claim 5, characterized bythe fastening of a drive element on the steering seat (15), which serves to move the mounting arch rod (14) along the steering seat (15), the drive element comprises a drive motor (22), a drive gear (23) and a curved tooth (24), the curved tooth (24) is fastened to the inner wall of the mounting arch rod (14), the drive gear (23) is connected to the curved tooth (24), the drive motor (22) is fastened to the steering seat (15) and the drive gear (23) is fastened coaxially to the output axis of the drive motor (22). [7] A vertical measuring device for wind turbines according to claim 1, characterized by that the end of the measuring rod of the linear displacement sensor (20) is provided with a contact switch (25).

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