A wind power tower cylinder crack detection device

Abstract

The utility model belongs to detection device technical field, specifically is a kind of wind power tower cylinder crack detection device, including roof, the top of roof is fixedly connected with first motor, the output of first motor is through roof and is fixedly connected with adjusting plate. The utility model is equipped with adjusting mechanism, cooperate support plate and ultrasonic detector, gradually hoist and rise in wind power tower cylinder, start second motor, support plate drives its top broken blade and bottom ultrasonic detector to move and gradually close to the inner wall of wind power tower cylinder, start first motor to drive adjusting plate and broken blade high-speed rotation, the ice block attached to the inner wall of wind power tower body is pulverized, start heating block to abutment block heating, the residual ice chip in the inner wall of wind power tower cylinder is melted, reach detection position, probe aims at detection position, stop first motor, start electric telescopic rod to drive this probe to abut against the inner wall of wind power tower cylinder and carry out ultrasonic detection.

Description

Technical Field

[0001] This utility model belongs to the field of detection device technology, specifically a wind turbine tower crack detection device. Background Technology

[0002] As a critical supporting structure for wind turbine generators, wind turbine towers are highly susceptible to developing cracks on their surface and internal structure over time. If these cracks are not detected and addressed promptly, they will continue to expand under stress concentration, affecting not only the structural stability and load-bearing capacity of the tower but also potentially leading to tower collapse and other major safety accidents, resulting in significant economic losses and safety hazards. Therefore, regular, efficient, and accurate crack detection of wind turbine towers is a crucial step in ensuring the safe and stable operation of wind turbine generators.

[0003] In cold regions or high-humidity environments, the inner wall of wind turbine towers is prone to icing due to sudden temperature changes. Repeated freeze-thaw cycles of ice not only accelerate the aging of tower materials but may also cover existing cracks, creating additional obstacles for inspection work. Ice can interfere with detection signals, leading to distorted test results or even making the inspection impossible. If the ice is to be broken before inspection, additional equipment is required for step-by-step operation, which is not only cumbersome and lacks coordination but also significantly reduces inspection efficiency. Therefore, a wind turbine tower crack detection device is proposed to address the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, a wind turbine tower crack detection device is proposed.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A wind turbine tower crack detection device includes a top plate, a first motor fixedly connected to the top of the top plate, an adjustment plate fixedly connected to the output end of the first motor through the top plate, a positioning groove inside the adjustment plate, a communicating groove connected to the positioning groove on one side of the outer wall of the adjustment plate, a support plate slidably connected inside the positioning groove, one end of the support plate extending out of the communicating groove, and an ultrasonic detector installed at the bottom of the support plate.

[0006] The adjusting plate is equipped with an adjusting mechanism, which includes a rack fixedly connected to the bottom of the support plate. The inner top wall of the positioning groove is rotatably connected to a first gear via a transmission rod. The first gear meshes with the rack. The bottom of the adjusting plate has a through hole communicating with the positioning groove. A second motor is fixedly connected to the bottom of the adjusting plate. The output end of the second motor passes through the through hole and is fixedly connected to a second gear. The second gear meshes with the first gear. A crushing blade is fixedly connected to the top of the support plate via a support block. By setting up the adjusting mechanism, in conjunction with the support plate and the ultrasonic detector, the ice-breaking equipment and the ultrasonic detector can be easily integrated together, ensuring detection efficiency.

[0007] Preferably, the top plate has an annular groove, and the bottom of the top has a support groove that communicates with the annular groove. A support ring is rotatably connected in the annular groove, and a connecting ring is fixedly connected to the bottom of the support ring. The bottom of the connecting ring extends out of the support groove and is fixedly connected to the top of the adjusting plate. The support groove, support ring, connecting ring and support groove are provided to facilitate the connection between the top and the adjusting plate, reduce the pressure on the first motor and improve the overall stability of the device.

[0008] Preferably, the inner wall of the annular groove is provided with an auxiliary groove, and a ball is provided in the auxiliary groove. By providing the auxiliary groove and the ball, the resistance when the support ring rotates can be reduced and the service life of the support ring can be improved.

[0009] Preferably, a protective plate is fixedly connected to the bottom of the support plate, and a protective groove is provided on the side of the protective plate away from the rack. The installation of the ultrasonic detector and the protective groove facilitate the installation of the ultrasonic detector and protect the ultrasonic detector.

[0010] Preferably, the support plate is fixedly connected to an abutment block at one end located on the outside. A heating block is installed at the bottom of the abutment block. The abutment block can be easily fitted to the inner wall of the wind turbine tower. In conjunction with the heating block, after the ice is broken, the heating block heats the abutment block, which further melts the residual ice at the point to be tested, facilitating the testing.

[0011] Preferably, a lifting ring is fixedly connected to the top of the top plate by a connecting rod. The inner wall of the lifting ring is provided with a wear-resistant layer. The lifting ring and the connecting rod facilitate the connection of the wire rope on the external lifting equipment to the lifting ring, so as to lift the device into the wind turbine tower.

[0012] Preferably, a placement ring is fixedly connected to the bottom of the adjustment plate, and the bottom of the placement ring is provided with anti-slip protrusions. The placement ring facilitates the placement of the device when it is not in use, and avoids instability of the bottom center of gravity of the device due to the presence of the second motor during placement.

[0013] The beneficial effects of this utility model are: This utility model provides a wind turbine tower crack detection device. Through the adjustment mechanism, in conjunction with a support plate and an ultrasonic detector, the ice-breaking equipment and ultrasonic detector can be easily integrated, ensuring detection efficiency. The steel wire rope on the hoisting equipment is connected to the hoisting ring, and the device is gradually lifted and raised inside the wind turbine tower. The second motor is started, and the support plate moves the top breaking blade and the bottom ultrasonic detector closer to the inner wall of the wind turbine tower. The first motor is started, driving the adjustment plate and breaking blade to rotate at high speed, crushing the ice adhering to the inner wall of the wind turbine tower. The heating block is activated to heat the contact block, melting the remaining ice fragments on the inner wall of the wind turbine tower. Upon reaching the detection position, the hoisting equipment is stopped, the probe is aligned with the detection position, the first motor is stopped, and the electric telescopic rod is started to move the probe to the inner wall of the wind turbine tower for ultrasonic detection. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with their description, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings...

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 The adjusting plate and the top plate are the components of this utility model.

[0017] Figure 3 This is a partial cross-sectional view of the adjusting plate in this utility model.

[0018] Figure 4 This is a partial structural diagram of the adjustment mechanism in this utility model.

[0019] Legend: 1. Top plate; 2. First motor; 3. Adjusting plate; 4. Positioning groove; 5. Connecting groove; 6. Support plate; 7. Ultrasonic detector; 8. Adjusting mechanism; 81. Rack; 82. Transmission rod; 83. First gear; 84. Second motor; 85. Second gear; 86. Crushing blade; 9. Annular groove; 10. Support ring; 11. Connecting ring; 12. Auxiliary groove; 13. Protective plate; 14. Abutment block; 15. Lifting ring; 16. Placement ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Specific implementation examples are given below.

[0022] Please see Figures 1-4 This utility model provides a wind turbine tower crack detection device, including a circular top plate 1; a first motor 2 is fixedly connected to the top of the top plate 1, and the output end of the first motor 2 passes through the top plate 1 and is fixedly connected to a circular adjustment plate 3.

[0023] The top of the top plate 1 is fixedly connected to three annularly distributed lifting rings 15 by connecting rods. The inner wall of the lifting rings 15 is provided with a wear-resistant layer. Through the setting of the lifting rings 15 and connecting rods, it is easy to connect the wire rope on the external lifting equipment to the lifting rings 15 so as to lift the device into the wind turbine tower.

[0024] An annular groove 9 is provided in the top plate 1, and a support groove communicating with the annular groove 9 is provided at the bottom of the top. A support ring 10 is rotatably connected in the annular groove 9, and a connecting ring 11 is fixedly connected to the bottom of the support ring 10. The bottom of the connecting ring 11 extends out of the support groove and is fixedly connected to the top of the adjusting plate 3.

[0025] The support groove, support ring 10, connecting ring 11 and support groove are designed to provide support for the connection between the top and the adjustment plate 3, reduce the pressure on the first motor 2 and improve the overall stability of the device.

[0026] An auxiliary groove 12 is provided on the inner side wall of the annular groove 9. A ball is provided in the auxiliary groove 12. The auxiliary groove 12 and the ball can reduce the resistance when the support ring 10 rotates and improve the service life of the support ring 10.

[0027] A circular positioning groove 4 is provided inside the adjusting plate 3. Six annularly distributed rectangular connecting grooves 5 are provided on one side of the outer wall of the adjusting plate 3, which are connected to the positioning groove 4. Six annularly distributed rectangular support plates 6 are slidably connected inside the positioning groove 4. One end of the support plate 6 extends out of the connecting groove 5. An ultrasonic detector 7 is installed at the bottom of the support plate 6.

[0028] A protective plate 13 is fixedly connected to the bottom of the support plate 6. A protective groove is provided on the side of the protective plate 13 away from the rack 81. The installation of the ultrasonic detector 7 and the protection of the ultrasonic detector 7 can be facilitated by the protective plate 13 and the protective groove.

[0029] An electric telescopic rod is fixedly installed on the inner wall of the protective groove. The probe of the ultrasonic detector 7 can be fixed to the output end of the electric telescopic rod by binding or bolting. Other supporting instruments of the ultrasonic detector 7 can be limited and fixed inside the protective plate 13. The specific installation method can be changed according to the actual situation. It is only necessary to ensure that the probe of the detector faces the inner wall of the wind turbine tower. The probe can be connected to the ultrasonic detector 7 body fixed on the adjustment plate 3 or placed on the ground by a cable.

[0030] The ultrasonic detector 7 can be the HS 811 TOFD detector. The specific installation method and the selection of the ultrasonic detector model are both existing mature technologies, so they will not be elaborated on further.

[0031] An adjustment mechanism 8 is provided on the adjustment plate 3. The adjustment mechanism 8 includes a rack 81 fixedly connected to the bottom of the support plate 6. The inner top wall of the positioning groove 4 is rotatably connected to a first gear 83 via a transmission rod 82. The first gear 83 meshes with the rack 81. An auxiliary rod is fixedly connected to the bottom of the first gear 83. The bottom end of the auxiliary rod is rotatably connected to the inner bottom wall of the positioning groove 4. The rotation of the gear drives the rack 81 to move, thereby controlling the movement of the support plate 6.

[0032] The bottom of the adjusting plate 3 has a through hole that communicates with the positioning groove 4. The bottom of the adjusting plate 3 is fixedly connected to the second motor 84. The output end of the second motor 84 passes through the through hole and is fixedly connected to the second gear 85. The second gear 85 meshes with the first gear 83. The top of the support plate 6 is fixedly connected to the crushing blade 86 through the support block.

[0033] The support plate 6 is fixedly connected to an abutment block 14 at one end. A circular heating block is installed at the bottom of the abutment block 14. The abutment block 14 can easily fit against the inner wall of the wind turbine tower. With the help of the heating block, after the ice is broken, the heating block heats the abutment block 14, which further melts the residual ice at the point to be tested, facilitating the testing.

[0034] The bottom of the adjusting plate 3 is fixedly connected to a placement ring 16. The bottom of the placement ring 16 is provided with anti-slip protrusions. The placement ring 16 facilitates the placement of the device when it is not in use, and avoids the instability of the bottom center of gravity of the device due to the presence of the second motor 84 during placement.

[0035] Based on the above structure, the present invention includes the following implementation process: The power supply for the first motor 2, the second motor 84, the heating block, and the electric telescopic rod can be provided by installing batteries on the top plate 1 and the adjusting plate 3, or by using an external long cable, depending on the situation.

[0036] Connect the wire rope on the hoisting equipment to the hoisting ring 15 to ensure that the hoisting center is aligned with the center of the top plate 1 to avoid instability. Then, gradually lift the device up inside the wind turbine tower using the hoisting ring.

[0037] The second motor 84 is started, which drives the second gear 85 to rotate. The rotation of the second gear 85 simultaneously drives the six first gears 83 to rotate. The six first gears 83 drive the six first racks 81 to move the support plate 6. The support plate 6 moves the broken blade at its top and the ultrasonic detector 7 at its bottom and gradually approaches the inner wall of the wind turbine tower until the abutment block 14 on the support plate 6 abuts against the inner wall of the wind turbine tower, but does not apply pressure to the inner wall of the wind turbine tower. Then the second motor 84 is stopped.

[0038] The function of the six support plates 6 and the abutment blocks 14 on them is to send the breaker blade 86 and the ultrasonic detector 7 to a position close to the inner wall of the wind turbine tower. It should be noted that the blade head of the breaker blade 86 does not contact the inner wall of the wind turbine tower.

[0039] The first motor 2 is started to drive the adjusting plate 3 to rotate. The adjusting plate 3 drives the crushing blade 86 to rotate at high speed through the support plate 6, crushing the ice attached to the inner wall of the wind turbine tower. Then, the hoisting equipment pulls the device to gradually and slowly rise in sections. During the rise, the crushing blade 86 continues to break the ice.

[0040] Before reaching the weld position that needs to be inspected, the heating block is activated to heat the abutment block 14. After the abutment block 14 is heated, it melts the broken but remaining ice fragments on the wind turbine tower. It should be noted that the support plate 6 is made of heat insulation material, or a heat insulation coating is sprayed on the outer wall of the support plate 6.

[0041] After reaching the testing position, turn off the heating block and stop the hoisting equipment. It should be noted that the stopping position should be such that the ultrasonic detector 7 is aligned with the testing position. Control the first motor 2 to rotate at low speed so that one or two of the probes of the six ultrasonic detectors 7 are aligned with the testing position. Stop the first motor 2 and start the electric telescopic rod to drive the probe to abut against the inner wall of the wind turbine tower for ultrasonic testing.

[0042] After one test is completed, the electric telescopic rod is activated to reset the probe, which then disengages from the wind turbine tower. The hoisting equipment is then activated to continue lifting the device, and the first motor 2 is activated to rotate the adjusting plate 3. The above steps are repeated continuously through the ultrasonic detector 7.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A wind turbine tower crack detection device, characterized in that: Includes a top plate (1); a first motor (2) is fixedly connected to the top of the top plate (1), the output end of the first motor (2) passes through the top plate (1) and is fixedly connected to an adjusting plate (3), a positioning groove (4) is provided in the adjusting plate (3), a communicating groove (5) is provided on one side of the outer wall of the adjusting plate (3) and communicates with the positioning groove (4), a support plate (6) is slidably connected in the positioning groove (4), one end of the support plate (6) extends out of the communicating groove (5), and an ultrasonic detector (7) is installed at the bottom of the support plate (6); an adjusting mechanism (8) is provided on the adjusting plate (3), the adjusting mechanism (8) includes a fixed A rack (81) is fixedly connected to the bottom of the support plate (6). The inner top wall of the positioning groove (4) is rotatably connected to a first gear (83) via a transmission rod (82). The first gear (83) meshes with the rack (81). The bottom of the adjusting plate (3) has a through hole that communicates with the positioning groove (4). The bottom of the adjusting plate (3) is fixedly connected to a second motor (84). The output end of the second motor (84) passes through the through hole and is fixedly connected to a second gear (85). The second gear (85) meshes with the first gear (83). The top of the support plate (6) is fixedly connected to a crushing blade (86) via a support block.

2. The wind turbine tower crack detection device according to claim 1, characterized in that: The top plate (1) has an annular groove (9) inside, and the bottom of the top has a support groove that communicates with the annular groove (9). A support ring (10) is rotatably connected inside the annular groove (9). A connecting ring (11) is fixedly connected to the bottom of the support ring (10). The bottom of the connecting ring (11) extends out of the support groove and is fixedly connected to the top of the adjusting plate (3).

3. The wind turbine tower crack detection device according to claim 2, characterized in that: An auxiliary groove (12) is provided on the inner side wall of the annular groove (9), and a rolling ball is provided in the auxiliary groove (12).

4. The wind turbine tower crack detection device according to claim 1, characterized in that: A protective plate (13) is fixedly connected to the bottom of the support plate (6), and a protective groove is provided on the side of the protective plate (13) away from the rack (81).

5. The wind turbine tower crack detection device according to claim 4, characterized in that: The support plate (6) is fixedly connected to an abutment block (14) at one end located on the outside, and a heating block is installed at the bottom of the abutment block (14).

6. The wind turbine tower crack detection device according to claim 1, characterized in that: The top of the top plate (1) is fixedly connected to a lifting ring (15) by a connecting rod, and the inner wall of the lifting ring (15) is provided with a wear-resistant layer.

7. The wind turbine tower crack detection device according to claim 1, characterized in that: The bottom of the adjustment plate (3) is fixedly connected to a placement ring (16), and the bottom of the placement ring (16) is provided with anti-slip protrusions.

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