A device and method for applying a UT through method to the trailing edge of a wind turbine blade

Abstract

The application provides a device applied to a wind power blade trailing edge bonding UT penetration method and a use method, which comprises a handle, a first working arm, a second working arm, a tension spring, a first adjusting frame, a second adjusting frame, a first sleeve and a second sleeve, the first end of the first working arm is connected to the first side of the handle, the second end of the first working arm is connected to the first sleeve through the first adjusting frame, the first end of the second working arm is connected to the second side of the handle, the second end of the second working arm is connected to the second sleeve through the second adjusting frame, and the first working arm and the second working arm are connected through the tension spring. The device is used for clamping the transmitting probe and the receiving probe through a mechanical structure, realizes the purpose of stable detection, and is provided with a water collecting cavity, so that the problem of water medium coupling required in the detection process is solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of wind power blades, and particularly relates to a device for wind power blade rear edge bonding UT penetration method and a use method. BACKGROUND

[0002] In the structure of a wind power blade, blade bonding is crucial to blade operation, and the effect of bonding is checked by mainly using an ultrasonic wave UT emission detection technology in the industry. The rear edge of the blade needs to be detected by an ultrasonic wave penetration method due to its particularity. The penetration method needs two probes to work simultaneously, and currently two probes need to be held respectively at the PS and SS sides of the rear edge. However, due to the need of the upper and lower probes to be at the same position, the actual operation is very difficult, time-consuming and the test data is inaccurate. In order to solve this problem, a rear edge penetration method ultrasonic detection tool is designed and developed. SUMMARY

[0003] Therefore, the application aims to provide a device for wind power blade rear edge bonding UT penetration method and a use method to solve the problem of inaccurate test data.

[0004] To achieve the above-mentioned purpose, the technical scheme of the application is as follows:

[0005] A device for wind power blade rear edge bonding UT penetration method, comprising a handle, a first working arm, a second working arm, a tension spring, a first adjusting frame, a second adjusting frame, a first sleeve and a second sleeve, the first end of the first working arm is connected to the first side of the handle, the second end of the first working arm is connected to the first sleeve through the first adjusting frame; the first end of the second working arm is connected to the second side of the handle, the second end of the second working arm is connected to the second sleeve through the second adjusting frame; the first working arm and the second working arm are connected through the tension spring.

[0006] Further, the handle is in a rectangular frame structure, a grip groove for palm gripping is formed in the middle of the handle, and an ergonomic structure is arranged in the grip groove; one first connecting hole is arranged at one end of the handle, and one second connecting hole and one first adjusting hole are arranged at the second end of the handle; the first connecting hole is used for connecting with the first working arm, and the second connecting hole and the first adjusting hole are used for connecting with the second working arm.

[0007] Further, the first end of the first working arm is connected to the first connecting hole through a first bolt, and the fixing between the first working arm and the handle is realized through a nut; the first end of the second working arm is connected to the second connecting hole and the first adjusting hole through a second bolt respectively, and the fixing between the second working arm and the handle is realized through the bolt, and the second working arm can rotate within the length range of the first adjusting hole with the second connecting hole as the origin.

[0008] Further, the first adjusting hole is an arc-shaped long circular hole structure, and the angle range of the first adjusting hole is 30°-40°.

[0009] Further, the first adjusting frame and the second adjusting frame are the same in structure, the first adjusting frame is in the form of a Y-shaped mechanism as a whole, and comprises a first adjusting clamp and a first connecting rod, the first connecting rod is installed to the middle part of the first adjusting clamp, the second end of the first working arm is provided with a third connecting hole and a third adjusting hole, the first connecting rod is connected to the third connecting hole and the third adjusting hole through bolts, the third adjusting hole is also in the form of an arc-shaped long circular hole structure, and the first connecting rod can rotate in the length range of the third adjusting hole with the third connecting hole as the origin; the second end of the second working arm is provided with a fourth connecting hole and a fourth adjusting hole, the second connecting rod of the second adjusting frame is connected to the fourth connecting hole and the fourth adjusting hole through bolts, the fourth adjusting hole is also in the form of an arc-shaped long circular hole structure, and the second connecting rod can rotate in the length range of the fourth adjusting hole with the fourth connecting hole as the origin.

[0010] Further, the first sleeve and the second sleeve are the same in structure, and the connection modes of the first sleeve and the second sleeve with the first adjusting frame and the second adjusting frame are also the same; the middle part of the first sleeve is provided with a first rotating shaft, and the two ends of the first rotating shaft are connected with the first adjusting clamp of the first adjusting frame respectively, so that the rotation of the first sleeve relative to the first adjusting clamp is realized.

[0011] Further, the first sleeve is in the form of a barrel structure as a whole, the middle part of the first sleeve is provided with a first partition plate, and the first partition plate divides the first sleeve into a water collecting area and an assembly area, the water collecting area is used for accommodating water, and the assembly area is used for clamping and fixing a transmitting probe.

[0012] Further, the side wall of the water collecting area is provided with a water inlet, the water inlet is connected with a water pump through a pipeline, the first partition plate is provided with a plurality of water passing holes, and the water passing holes communicate the water collecting area and the assembly area.

[0013] Further, the assembly area of the second sleeve is used for clamping and fixing a receiving probe, the first sleeve installed to the first adjusting frame and the second sleeve installed to the second adjusting frame are arranged oppositely, i.e., the transmitting probe clamped by the first sleeve and the receiving probe clamped by the second sleeve are arranged oppositely, and are used for cooperating with the upper and lower surfaces of the rear edge of the blade.

[0014] Further, the connecting point of the tension spring with the first working arm is taken as a, the end of the first working arm close to the handle is taken as b, the end of the first working arm away from the handle is taken as c, and the ratio range of ac to ab is 5:1-7:1.

[0015] A use method of a device applied to a wind power blade rear edge bonding UT penetration method, comprising the following steps:

[0016] S1, adjust the device according to the trailing edge thickness of the blade to be detected;

[0017] S2, move the adjusted device to the blade position; open the second working arm with hand, move to the trailing edge of the blade; loosen the second working arm, and the first working arm and the second working arm are tightened under the action of the tension spring;

[0018] S3, open the water pump, the water pump pumps water into the water collecting area of the first sleeve and the water collecting area of the second sleeve, and the water body continues to drain to the assembly area through the water hole under the action of the water pump, and the transmitting probe and the receiving probe realize detection work under the coupling of the water medium;

[0019] S4, during the detection process, the worker holds the handle, and the detection route of the device is zigzag by manual operation, so that the whole scanning area is covered.

[0020] Compared with the prior art, the device applied to the UT penetration method of the trailing edge bonding of the wind power blade has the following advantages:

[0021] (1) The device applied to the UT penetration method of the trailing edge bonding of the wind power blade and the use method, the transmitting probe and the receiving probe are clamped by the mechanical structure device, the purpose of stable detection is realized, and the water collecting cavity is arranged, so that the problem of water medium coupling required in the detection process is solved.

[0022] (2) The device applied to the UT penetration method of the trailing edge bonding of the wind power blade and the use method, the adjusting hole is arranged to adapt to wind blades of different thicknesses and ensure that the two ultrasonic probes can better oppose each other, so that better detection effect is achieved. DETAILED DESCRIPTION

[0023] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the present application, and their description, are used to explain the application and do not constitute any undue limitations on the scope of the application. In the drawings:

[0024] Figure 1 The front view angle schematic view of the device applied to the UT penetration method of the trailing edge bonding of the wind power blade is described in the embodiments of the present application;

[0025] Figure 2 The rear view angle schematic view of the device applied to the UT penetration method of the trailing edge bonding of the wind power blade is described in the embodiments of the present application;

[0026] Figure 3 The schematic view of the hidden sealing plate of the first sleeve in the top view angle is described in the embodiments of the present application;

[0027] Figure 4This is a schematic diagram of the first sleeve from a bottom angle according to an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Handle; 11. Grip groove; 12. Connection hole 1; 13. Connection hole 2; 14. Adjustment hole 1; 2. Working arm 1; 21. Connection hole 3; 22. Adjustment hole 3; 3. Working arm 2; 31. Connection hole 4; 32. Adjustment hole 4; 4. Tension spring; 5. Adjustment frame 1; 51. Adjustment clamp 1; 52. Connecting rod 1; 6. Adjustment frame 2; 7. Sleeve 1; 71. Rotating shaft 1; 72. Partition 1; 73. Water collection area; 74. Assembly area; 75. Water inlet; 76. Water passage hole; 8. Sleeve 2; 9. Transmitting probe; 10. Receiving probe; Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] An apparatus and method for use in the UT penetration method for bonding the trailing edge of wind turbine blades, such as...Figures 1-4 As shown, the assembly includes a handle 1, a first working arm 2, a second working arm 3, a tension spring 4, a first adjusting bracket 5, a second adjusting bracket 6, a first sleeve 7, and a second sleeve 8. The first end of the first working arm 2 is connected to the first side of the handle 1, and the second end of the first working arm 2 is connected to the first sleeve 7 through the first adjusting bracket 5. The first end of the second working arm 3 is connected to the second side of the handle 1, and the second end of the second working arm 3 is connected to the second sleeve 8 through the second adjusting bracket 6. The first working arms 2 and the second working arms 3 are connected to each other by tension springs 4.

[0035] Preferably, the handle 1 has a rectangular frame structure, with a gripping groove 11 formed in the middle of the handle 1 for palm gripping, and the gripping groove 11 is provided with an ergonomic structure; one end of the handle 1 is provided with a first connecting hole 12, and the second end of the handle 1 is provided with a second connecting hole 13 and a first adjusting hole 14; the first connecting hole 12 is used to connect with the first working arm 2, and the second connecting hole 13 and the first adjusting hole 14 are used to connect with the second working arm 3.

[0036] Preferably, the first end of the first working arm 2 is connected to the first connecting hole 12 by a first bolt, and the first working arm 2 and the handle 1 are fixed by a nut; the first end of the second working arm 3 is connected to the second connecting hole 13 and the first adjusting hole 14 by a second bolt, and the second working arm 3 and the handle 1 are fixed by bolts. The second working arm 3 can rotate within the length range of the first adjusting hole 14 with the second connecting hole 13 as the origin.

[0037] Preferably, the first adjustment hole 14 is an arc-shaped elongated hole structure, and the angle range of the first adjustment hole 14 is 30°-40°, which can meet the adjustment angle of the second working arm 3. Usually, during adjustment, the first working arm 2 is fixed first to prevent the first working arm 2 from rotating; the second working arm 3 is rotated and opened, and after the detection position and detection thickness are accurately located, the second working arm 3 is fixed.

[0038] Preferably, the first adjustment frame 5 and the second adjustment frame 6 have the same structure. The first adjustment frame 5 is a Y-shaped mechanism, including a first adjustment clamp 51 and a first connecting rod 52. The first connecting rod 52 is installed in the middle of the first adjustment clamp 51. The second end of the first working arm 2 is provided with a third connecting hole 21 and a third adjustment hole 22. The first connecting rod 52 is connected to the third connecting hole 21 and the third adjustment hole 22 by bolts. The third adjustment hole 22 is also an arc-shaped elongated oval hole structure. The first connecting rod 52 can rotate within the length range of the third adjusting hole 22 with the third connecting hole 21 as the origin; the second end of the second working arm 3 is provided with the fourth connecting hole 31 and the fourth adjusting hole 32, and the second connecting rod of the second adjusting frame 6 is connected to the fourth connecting hole 31 and the fourth adjusting hole 32 by bolts. The fourth adjusting hole 32 is also an arc-shaped elongated hole structure, and the second connecting rod can rotate within the length range of the fourth adjusting hole 32 with the fourth connecting hole 31 as the origin.

[0039] Preferably, the first sleeve 7 and the second sleeve 8 have the same structure, and the connection methods between the first sleeve 7 and the second sleeve 8 and the first adjustment frame 5 and the second adjustment frame 6 are also the same; the first sleeve 7 has a first rotating shaft 71 in the middle, and the two ends of the first rotating shaft 71 are respectively connected to the first adjustment clamp 51 of the first adjustment frame 5, so as to realize the rotation of the first sleeve 7 relative to the first adjustment clamp 51. The first sleeve 7 and the second sleeve 8 are both movable, which makes it easy for the transmitting probe 9 and the receiving probe 10 on them to accurately locate the detection position.

[0040] Preferably, the first sleeve 7 has an overall barrel-shaped structure, and a first partition 72 is provided in the middle of the first sleeve 7. The first partition 72 divides the first sleeve 7 into a water collection area 73 and an assembly area 74. The water collection area 73 is used to collect water; the assembly area 74 is used to clamp the transmitting probe 9. The integrated design allows the device to save operating space as much as possible without reducing the number of processes, thus reducing the overall size of the device and achieving smooth operation. The water collection area 73 is provided with a sealing plate to form a cavity that can collect water.

[0041] Preferably, the side wall of the water collection area 73 is provided with a water inlet 75, which is connected to a water pump through a pipeline. The first partition 72 is provided with several water passage holes 76, which connect the water collection area 73 and the assembly area 74. The passage connecting the water collection area 73 and the assembly area 74 is a water passage channel. Through the water passage channel, water is continuously supplied to the transmitting probe 9 and the receiving probe 10 during the detection process. Because the coupling effect between the water medium and the probe is an indispensable part of the detection process, the previous detection method required manual watering. With this device, water can be supplied in a timed and quantitative manner, which is convenient to operate and saves manpower.

[0042] Preferably, the assembly area 74 of the second sleeve 8 is used to clamp the receiving probe 10. The first sleeve 7 installed on the first adjustment frame 5 and the second sleeve 8 installed on the second adjustment frame 6 are arranged opposite to each other, that is, the transmitting probe 9 clamped by the first sleeve 7 and the receiving probe 10 clamped by the second sleeve 8 are arranged opposite to each other, for mating with the upper and lower surfaces of the trailing edge of the blade. It is a common method to detect the trailing edge of the blade by using the transmitting probe 9 and the receiving probe 10. By clamping the transmitting probe 9 and the receiving probe 10 by this device, the accurate detection data can be obtained.

[0043] Preferably, the connection point between the tension spring 4 and the first working arm 2 is designated as a, the end of the first working arm 2 closer to the handle 1 is designated as b, and the end farther from the handle 1 is designated as c. The ratio of ac to ab is in the range of 5:1 to 7:1. Setting the connection point between the tension spring 4 and the first working arm 2 and the second working arm 3 within this length range makes it easy for the operator to separate the first working arm 2 and the second working arm 3 with one hand. At the same time, it can also provide a stable clamping force during the clamping process of the trailing edge of the blade, avoiding the situation where the device is easy to fall off during the detection.

[0044] A method for using an apparatus for bonding the trailing edge of wind turbine blades using the UT penetration method includes the following steps;

[0045] S1. Adjust the device according to the trailing edge thickness of the blade to be tested;

[0046] S2. Move the adjusted device to the blade position; use your hand to pry open the second working arm 3 and move it to the trailing edge of the blade; release the second working arm 3, and under the action of the tension spring 4, the first working arm 2 and the second working arm 3 will tighten.

[0047] S3. Turn on the water pump. The water pump draws water into the water collection area 73 of sleeve 7 and sleeve 8. Under the action of the water pump, the water continues to drain into the assembly area 74 through the water passage 76. The transmitting probe 9 and the receiving probe 10 perform detection work under the coupling of the water medium.

[0048] S4. During the testing process, the staff holds handle 1 and manually makes the testing route of the device zigzag to achieve full coverage of the scanning area.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device applied to the UT penetration method for bonding the trailing edge of a wind turbine blade, characterized by: The utility model provides a kind of portable water quality testing device, including handle (1), first working arm (2), second working arm (3), tension spring (4), first adjusting frame (5), second adjusting frame (6), first sleeve (7) and second sleeve (8), the first end of the first working arm (2) is connected to handle (1) first side, and the second end of the first working is connected first sleeve (7) by first adjusting frame (5);The first end of the second working arm (3) is connected to the second side of handle (1), and the second end of the second working arm (3) is connected second sleeve (8) by second adjusting frame (6);The first working arm (2) between and the second working arm (3) are connected by tension spring (4); The handle (1) is rectangular frame structure, and the middle of handle (1) is formed with a gripping groove (11) for palm gripping, and the gripping groove (11) is provided with an ergonomic structure;One first connecting hole (12) is arranged at one end of the handle (1), and a second connecting hole (13) and a first adjusting hole (14) are arranged at the second end of the handle (1);The first connecting hole (12) is used for being connected with the first working arm (2), and the second connecting hole (13) and the first adjusting hole (14) are used for being connected with the second working arm (3); The first adjusting hole (14) is an arc-shaped long circular hole structure, and the angle range of the first adjusting hole (14) is 30°-40°; The first adjusting frame (5) and the second adjusting frame (6) are the same structure, the first adjusting frame (5) is Y-shaped mechanism as a whole, including a first adjusting clamp (51) and a first connecting rod (52), the first connecting rod (52) is installed to the middle of the first adjusting clamp (51), the second end of the first working arm (2) is provided with a third connecting hole (21) and a third adjusting hole (22), the first connecting rod (52) is connected to the third connecting hole (21) and the third adjusting hole (22) by bolt, the third adjusting hole (22) is also arc-shaped long circular hole structure, the first connecting rod (52) can rotate in the length range of third adjusting hole (22) with third connecting hole (21) as origin;The second end of the second working arm (3) is provided with a fourth connecting hole (31) and a fourth adjusting hole (32), the second connecting rod of the second adjusting frame (6) is connected to the fourth connecting hole (31) and the fourth adjusting hole (32) by bolt, the fourth adjusting hole (32) is also arc-shaped long circular hole structure, and the second connecting rod can rotate in the length range of fourth adjusting hole (32) with fourth connecting hole (31) as origin; The first sleeve (7) is barrel-shaped structure as a whole, and a first partition (72) is arranged in the middle of the first sleeve (7), and the first sleeve (7) is divided into a water collecting area (73) and an assembly area (74) by the first partition (72), the water collecting area (73) is used for receiving water;The assembly area (74) is used for clamping and fixing the emission probe (9). The side wall of the water collecting area (73) is provided with a water inlet (75) connected with a water pump through a pipeline, and the first baffle (72) is provided with a plurality of water passing holes (76) communicating the water collecting area (73) and the assembling area (74).

2. The device for use in the ultrasonic through-transmission method applied to the bonding of the trailing edge of a wind turbine blade according to claim 1, characterized in that: The first end of the first working arm (2) is connected to the first connecting hole (12) through a first bolt, and the fixing between the first working arm (2) and the handle (1) is realized through a nut; the first end of the second working arm (3) is connected to the second connecting hole (13) and the first adjusting hole (14) through a second bolt respectively, and the fixing between the second working arm (3) and the handle (1) is realized through a bolt, and the second working arm (3) can rotate within the length range of the first adjusting hole (14) with the second connecting hole (13) as the origin.

3. The device for use in the ultrasonic through-transmission method applied to the bonding of the trailing edge of a wind turbine blade according to claim 1, characterized in that: The first sleeve (7) and the second sleeve (8) are the same in structure, and the connection between the first sleeve (7) and the second sleeve (8) and the first adjusting frame (5) and the second adjusting frame (6) is also the same; the middle part of the first sleeve (7) is provided with a first rotating shaft (71), and the two ends of the first rotating shaft (71) are connected with a first adjusting clamp (51) of the first adjusting frame (5) respectively, so that the first sleeve (7) can rotate relative to the first adjusting clamp (51).

4. The device for use in the ultrasonic through-transmission method applied to the bonding of the trailing edge of a wind turbine blade according to claim 1, characterized in that: The assembling area (74) of the second sleeve (8) is used for clamping and fixing the receiving probe (10), and the first sleeve (7) installed on the first adjusting frame (5) and the second sleeve (8) installed on the second adjusting frame (6) are arranged oppositely, that is, the transmitting probe (9) clamped by the first sleeve (7) and the receiving probe (10) clamped by the second sleeve (8) are arranged oppositely, and are used for cooperating with the upper and lower surfaces of the blade trailing edge.

5. The use method of the device for the UT penetration method for bonding the trailing edge of the wind power blade according to any one of claims 1-4, comprising the following steps: S1. Adjusting the device according to the thickness of the trailing edge of the blade to be detected; S2. Moving the adjusted device to the position of the blade; S3. Opening the second working arm (3) by hand, moving to the trailing edge of the blade, and releasing the second working arm (3), so that the first working arm (2) and the second working arm (3) are tightened under the action of the tension spring (4); S3. Turning on the water pump, and the water pump pumps water into the water collecting area (73) of the first sleeve (7) and the water collecting area (73) of the second sleeve (8), and the water body continues to drain to the assembling area (74) through the water passing hole (76) under the action of the water pump, and the transmitting probe (9) and the receiving probe (10) realize detection work under the coupling of the water medium; S4. During the detection process, the worker holds the handle (1) by hand, and the detection route of the device is zigzag-shaped by manual operation, so that the detection area is increased, and full coverage of the scanning area is realized.

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