Wind turbine generator tower wall and weld joint nondestructive inspection device

Abstract

The utility model relates to the technical field of non-destructive inspection, and discloses a wind turbine generator tower wall and weld joint non-destructive inspection device which comprises a tower body, a first moving box and a second moving box are respectively and movably mounted in the tower body, and the first moving box is fixedly connected with the second moving box. The first moving plate and the second moving plate are mutually staggered and are connected with the inner cavity wall of the tower body, the first moving box is located above the second moving box, a mounting plate is fixedly mounted at the top end of the first moving box, and a detector is movably mounted at the top end of the mounting plate. A first moving box and a second moving box can be matched with each other to move in an inner cavity of a tower body, a detector is conveniently driven to conduct nondestructive inspection on the inner cavity wall of the tower body, a motor works to drive a rotating plate to rotate, and the rotating plate can drive the detector to rotate together when rotating; and the detector is driven to carry out 360-degree dead-angle-free monitoring on the inner cavity wall of the tower body and a welding seam.

Description

Technical Field

[0001] The utility model relates to the technical field of nondestructive flaw detection, in particular to a nondestructive flaw detection device for a tower wall and a weld of a wind turbine generator set. Background Art

[0002] The regular flaw detection test of the welds of wind turbine towers has always been a difficult problem that has plagued the technical supervision work of wind power companies. The reason is that the towers are relatively high, generally around 80 meters, with a small internal space and a straight-up and straight-down circular structure. The tower body has only 2 or 3 platforms along its entire length, and there are dozens of welds distributed on the tower body. This creates difficulties for flaw detection operations, and it is difficult for personnel to move around and set up flaw detection instruments. This has also led to the fact that many wind power companies can only conduct metal flaw detection tests by random sampling or greatly reduce the flaw detection area, so that the metal flaw detection work of wind farms has not been truly implemented, which has laid hidden dangers for the safe and stable operation of the company. Utility Model Content

[0003] The utility model aims to provide a nondestructive flaw detection device for tower wall and weld of wind turbine generator set, so as to solve the problems raised in the above-mentioned background technology.

[0004] Technical Solution

[0005] The utility model provides the following technical solution: a nondestructive flaw detection device for tower walls and welds of a wind turbine generator set, comprising a tower body, wherein a first movable box and a second movable box are movably installed inside the tower body, respectively, the first movable box and the second movable box are fixedly connected, and the first movable box is located above the second movable box, a mounting plate is fixedly installed on the top of the first movable box, a detector is movably installed on the top of the mounting plate, a second connecting block is movably installed inside the second movable box, one end of the second connecting block passes through the inner wall of the second movable box and is movably installed with the second movable plate, the first movable box and the second movable box have the same shape, structure and size, and the first movable plate is also movably installed on the outer side of the first movable box.

[0006] Preferably, cameras are fixedly mounted on adjacent sides of the first movable plate and the second movable plate, the outer ring sides of the first movable plate and the second movable plate are in contact with the inner cavity wall of the tower body, and the outer ring side surfaces of the first movable plate and the second movable plate are provided with anti-slip patterns.

[0007] Preferably, a first electric telescopic cylinder is fixedly installed inside the second movable box, a telescopic column is fixedly installed on the output shaft end of the first electric telescopic cylinder, a first connecting block is fixedly installed on the other end of the telescopic column, and a second electric telescopic cylinder is evenly fixedly installed on the outside of the first connecting block at equal distances and angles.

[0008] Preferably, the output shaft end of the second electric telescopic cylinder is fixedly connected to the second connecting block. The other end of the second connecting block is fixedly installed with a connecting column, and the other end of the connecting column is fixedly connected to the second moving plate. A sliding through hole matching the connecting column is penetrated through the inner wall of the second moving box.

[0009] Preferably, a motor is fixedly installed at the top end of the mounting plate. The output shaft end of the motor is fixedly installed with a rotating plate, and the detector is fixedly installed at the top end of the rotating plate. The detector is located at the center of the rotating plate.

[0010] Preferably, sliding plates are fixedly installed at equal distances and equal angles around the bottom end of the rotating plate. The sliding plates are slidably connected to the top end of the mounting plate. A sliding groove matching the sliding plates is opened at the top end of the mounting plate. A stabilizing plate is fixedly installed on the outer side of the sliding plates. The stabilizing plate is located above the sliding groove.

[0011] Beneficial effects

[0012] Compared with the prior art, the utility model provides a non-destructive flaw detection device for the tower barrel wall and weld of a wind turbine, which has the following beneficial effects:

[0013] 1. When the non-destructive flaw detection device for the tower barrel wall and weld of the wind turbine needs to detect the tower barrel wall and weld inside the tower body, the first moving box and the second moving box need to be used in cooperation. First, the first moving plate on the outside of the first moving box does not move. In the second moving box, the second connecting block is driven to move into the second moving box by the work of the second electric telescopic cylinder. When the second connecting block moves, it will drive the second moving plate to move through the connecting column. The second moving plate is separated from the inner cavity wall of the tower body. The telescopic column is driven to rotate by the work of the first motor telescopic cylinder. The telescopic column will drive the second electric telescopic cylinder to adjust the height in the second moving box through the first connecting block. Through the connection between the mutual staggering of the first moving plate and the second moving plate and the inner cavity wall of the tower body, the first moving box and the second moving box can be cooperated to move in the inner cavity of the tower body, which is convenient for driving the detector to perform non-destructive flaw detection on the inner cavity wall of the tower body.

[0014] 2. For the non-destructive flaw detection device for the tower barrel wall and weld of the wind turbine, the motor drives the rotating plate to rotate. When the rotating plate rotates, it will drive the detector to rotate together, driving the detector to perform 360° dead-angle-free monitoring on the inner cavity wall and weld of the tower body.

[0015] 3. For the non-destructive flaw detection device for the tower barrel wall and weld of the wind turbine, when the rotating plate rotates, the stability of the rotating plate during rotation can be ensured through the sliding plates, the sliding groove and the stabilizing plate. Description of the drawings

[0016] The accompanying drawings are used to provide a further understanding of the present utility model and form a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model.

[0017] Figure 1 It is the front view of the overall structure of the present utility model;

[0018] Figure 2 It is the connection diagram of the first moving box and the second moving box of the present utility model;

[0019] Figure 3 It is the internal working diagram of the first moving box of the present utility model;

[0020] Figure 4 It is the connection diagram of the mounting plate and the detector of the present utility model;

[0021] Figure 5 It is the working diagram of the detector of the present utility model.

[0022] In the figure: 1, tower body main body; 2, first moving box; 3, second moving box; 4, mounting plate; 5, detector; 6, first moving plate; 7, second moving plate; 8, camera; 9, first electric telescopic cylinder; 10, first connecting block; 11, second electric telescopic cylinder; 12, second connecting block; 13, connecting column; 14, sliding through hole; 15, motor; 16, rotating plate; 17, sliding plate; 18, sliding groove; 19, stabilizing plate; 20, telescopic column. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1:

[0025] Please refer to Figures 1-3, a non-destructive testing device for the tower barrel wall and welds of a wind turbine, comprising a tower body 1. Inside the tower body 1, a first moving box 2 and a second moving box 3 are respectively movably installed. The first moving box 2 and the second moving box 3 are fixedly connected to each other, and the first moving box 2 is located above the second moving box 3. At the top end of the first moving box 2, a mounting plate 4 is fixedly installed. At the top end of the mounting plate 4, a detector 5 is movably installed. Inside the second moving box 3, a second connecting block 12 is movably installed. One end of the second connecting block 12 penetrates through the inner wall of the second moving box 3 and a second moving plate 7 is movably installed. The first moving box 2 and the second moving box 3 have the same shape, structure and size. On the outside of the first moving box 2, a first moving plate 6 is also movably installed.

[0026] In this embodiment, cameras 8 are fixedly installed on the adjacent sides of the first moving plate 6 and the second moving plate 7. The outer ring sides of the first moving plate 6 and the second moving plate 7 are in contact with the inner cavity wall of the tower body 1, and anti-slip patterns are provided on the outer ring side surfaces of the first moving plate 6 and the second moving plate 7.

[0027] In this embodiment, a first electric telescopic cylinder 9 is fixedly installed inside the second moving box 3. At the output shaft end of the first electric telescopic cylinder 9, a telescopic column 20 is fixedly installed. At the other end of the telescopic column 20, a first connecting block 10 is fixedly installed. On the outside of the first connecting block 10, second electric telescopic cylinders 11 are fixedly installed at equal distances and equally angled.

[0028] In this embodiment, the output shaft end of the second electric telescopic cylinder 11 is fixedly connected to the second connecting block 12. At the other end of the second connecting block 12, a connecting column 13 is fixedly installed. At the other end of the connecting column 13, it is fixedly connected to the second moving plate 7, and a sliding through hole 14 matching the connecting column 13 is penetrated through the inner wall of the second moving box 3.

[0029] Working principle of this embodiment: When in use, when it is necessary to detect the tower barrel wall and welds inside the tower body 1, the first moving box 2 and the second moving box 3 need to be used in cooperation. First, the first moving plate 6 outside the first moving box 2 does not move. In the second moving box 3, the second connecting block 12 is driven to move into the second moving box 3 by the work of the second electric telescopic cylinder 11. When the second connecting block 12 moves, it will drive the second moving plate 7 to move through the connecting column 13. The second moving plate 7 is separated from the inner cavity wall of the tower body 1. The telescopic column 20 is driven to rotate by the work of the first motor telescopic cylinder 9. The telescopic column 20 will drive the second electric telescopic cylinder 11 to adjust the height in the second moving box 3 through the first connecting block 10. Through the connection between the first moving plate 6 and the second moving plate 7 being staggered from each other and the inner cavity wall of the tower body 1, the first moving box 2 and the second moving box 3 can be made to cooperate with each other to move in the inner cavity of the tower body 1, facilitating driving the detector 5 to perform non-destructive testing on the inner cavity wall of the tower body 1.

[0030] Example Two:

[0031] Please refer to Figure 1 、 Figure 4 、 Figure 5 , a non-destructive testing device for the tower wall and welds of a wind turbine, including a tower body 1. Inside the tower body 1, a first moving box 2 and a second moving box 3 are respectively movably installed. The first moving box 2 and the second moving box 3 are fixedly connected to each other, and the first moving box 2 is located above the second moving box 3. At the top of the first moving box 2, a mounting plate 4 is fixedly installed. At the top of the mounting plate 4, a detector 5 is movably installed. Inside the second moving box 3, a second connecting block 12 is movably installed. One end of the second connecting block 12 penetrates through the inner wall of the second moving box 3 and a second moving plate 7 is movably installed. The first moving box 2 and the second moving box 3 have the same shape, structure and size. A first moving plate 6 is also movably installed on the outside of the first moving box 2.

[0032] In this embodiment, a motor 15 is fixedly installed at the top of the mounting plate 4. At the output shaft end of the motor 15, a rotating plate 16 is fixedly installed. The detector 5 is fixedly installed at the top of the rotating plate 16. The detector 5 is located at the center of the rotating plate 16.

[0033] In this embodiment, sliding plates 17 are fixedly installed at equal distances and equal angles around the bottom end of the rotating plate 16. The sliding plates 17 are slidably connected to the top of the mounting plate 4. And sliding grooves 18 matching the sliding plates 17 are opened at the top of the mounting plate 4. A stabilizing plate 19 is fixedly installed on the outside of the sliding plate 17. The stabilizing plate 19 is located above the sliding groove 18.

[0034] Working principle of this embodiment: When the detector 5 works inside the tower body 1, the motor 15 drives the rotating plate 16 to rotate. When the rotating plate 16 rotates, it will drive the detector 15 to rotate together, driving the detector 15 to monitor the inner cavity wall and welds of the tower body 1 without dead angles of 360°. Moreover, when the rotating plate 16 rotates, the stability of the rotating plate 16 during rotation is ensured through the sliding plates 17, sliding grooves 18 and stabilizing plates 19.

Claims

1. A non-destructive flaw detection device for tower wall and weld of a wind turbine generator set, comprising a tower body (1), characterized in that: A first movable box (2) and a second movable box (3) are movably mounted inside the tower body (1), the first movable box (2) and the second movable box (3) are fixedly connected, and the first movable box (2) is located above the second movable box (3); a mounting plate (4) is fixedly mounted on the top of the first movable box (2), and a detector (5) is movably mounted on the top of the mounting plate (4); a second connecting block (12) is movably mounted inside the second movable box (3), one end of the second connecting block (12) passes through the inner wall of the second movable box (3) and is movably mounted with a second movable plate (7); the first movable box (2) and the second movable box (3) have the same shape, structure and size, and a first movable plate (6) is also movably mounted on the outer side of the first movable box (2).

2. A wind turbine tower wall and weld nondestructive testing device according to claim 1, characterized in that: Cameras (8) are fixedly mounted on adjacent sides of the first movable plate (6) and the second movable plate (7); the outer ring sides of the first movable plate (6) and the second movable plate (7) are in contact with the inner cavity wall of the tower body (1); and the outer ring side surfaces of the first movable plate (6) and the second movable plate (7) are provided with anti-slip patterns.

3. A wind turbine tower wall and weld nondestructive testing device according to claim 1, characterized in that: A first electric telescopic cylinder (9) is fixedly mounted inside the second moving box (3); a telescopic column (20) is fixedly mounted on the output shaft end of the first electric telescopic cylinder (9); a first connecting block (10) is fixedly mounted on the other end of the telescopic column (20); and a second electric telescopic cylinder (11) is fixedly mounted on the outside of the first connecting block (10) at equal distances and angles.

4. A wind turbine tower wall and weld nondestructive testing device according to claim 3, characterized in that: The output shaft end of the second electric telescopic cylinder (11) is fixedly connected to the second connecting block (12); the other end of the second connecting block (12) is fixedly mounted with a connecting column (13); the other end of the connecting column (13) is fixedly connected to the second movable plate (7); and a sliding through hole (14) matching the connecting column (13) is formed through the inner wall of the second movable box (3).

5. The nondestructive flaw detection device for tower wall and weld of wind turbine generator set according to claim 1, characterized in that: A motor (15) is fixedly mounted on the top of the mounting plate (4), a rotating plate (16) is fixedly mounted on the output shaft end of the motor (15), the detector (5) is fixedly mounted on the top of the rotating plate (16), and the detector (5) is located at the center of the rotating plate (16).

6. A wind turbine tower wall and weld nondestructive testing device according to claim 5, characterized in that: A sliding plate (17) is evenly fixedly mounted at equal distances and angles around the bottom of the rotating plate (16); the sliding plate (17) is slidably connected to the top of the mounting plate (4); and a sliding groove (18) matching the sliding plate (17) is provided at the top of the mounting plate (4); a stabilizing plate (19) is fixedly mounted on the outer side of the sliding plate (17); and the stabilizing plate (19) is located above the sliding groove (18).

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