A wire rope flaw detection device

Abstract

This utility model relates to the field of wire rope flaw detection technology and discloses a wire rope flaw detection device, including: a climbing frame, multiple connecting devices, and multiple flaw detection devices. The climbing frame includes: a sliding frame and a fixed frame. One end of the sliding frame is slidably connected to one end of the fixed frame, and the other end of the sliding frame is adapted to connect to a column on one side of the wind turbine climbing ladder. The other end of the fixed frame is adapted to connect to a column on the other side of the wind turbine climbing ladder. Multiple connecting devices are spaced apart on the sliding frame, and the connecting devices have sliding and fixed states. Each flaw detection device is correspondingly set on one connecting device. The wire rope passes through the detection port of the flaw detection device. This utility model can be installed on wind turbine climbing ladders of different widths and can perform flaw detection on wire ropes with different spacing.

Description

Technical Field

[0001] This utility model relates to the field of wire rope flaw detection technology, specifically to a wire rope flaw detection and testing device. Background Technology

[0002] Wind power generation is a form of energy conversion that uses natural wind energy to drive wind turbines and is widely used in the field of new energy power generation. Wind turbine generator sets are usually composed of components such as towers, nacelles, and blades. The nacelle is usually installed at the top of a tower that is over 100 meters high, and it integrates key equipment such as generators and gearboxes. During daily operation and maintenance, maintenance personnel need to frequently enter and exit the nacelle to perform equipment inspection and maintenance work.

[0003] Traditional maintenance methods require personnel to climb vertical ladders inside the tower to reach the engine room, which is inefficient, labor-intensive, and poses significant safety risks. With the application of "climb-free" technology, maintenance personnel can simply stand on a lifting platform and move up and down using a wire rope drive system, quickly and safely reaching the engine room. As the core component of the climb-free system for load-bearing and traction, the operating condition of the wire rope directly affects the reliability of the system and the safety of the personnel. Therefore, damage detection of the wire rope has become a crucial link in ensuring the safe operation of the climb-free system. Due to the limited space at the location of the wire rope, the varying spacing between wire ropes, and the inconsistent width of the ladders used for installing flaw detection devices, existing wire rope flaw detection devices are mostly general-purpose equipment with poor adaptability, making it difficult to adapt to the installation of ladders of different widths and the flaw detection of wire ropes at different spacings. Utility Model Content

[0004] In view of this, the present invention provides a wire rope flaw detection device to solve the problems of poor installation adaptability of existing flaw detection devices, which make it difficult to adapt to the installation of ladders of different widths and the flaw detection of wire ropes with different spacing.

[0005] Firstly, this utility model provides a wire rope flaw detection device, comprising:

[0006] A ladder frame, comprising: a sliding frame and a fixed frame, one end of the sliding frame being slidably connected to one end of the fixed frame, the other end of the sliding frame being adapted to connect to a column on one side of the fan ladder, and the other end of the fixed frame being adapted to connect to a column on the other side of the fan ladder;

[0007] Multiple connecting devices are spaced apart on the sliding frame (11), and the connecting devices have a sliding state and a fixed state;

[0008] Multiple flaw detection devices are provided, each of which is correspondingly mounted on one of the connecting devices, and a steel wire rope passes through the detection port of the flaw detection device.

[0009] Beneficial effects

[0010] The sliding frame and the fixed frame are slidably connected, allowing for adjustable ladder length. The wire rope flaw detection device can be fixed on ladders of different widths, improving its installation adaptability. By installing multiple connecting devices with sliding and fixed states at intervals on the sliding frame, the flaw detection device can flexibly adjust its detection position according to different wire rope spacings, enhancing its versatility.

[0011] In one optional embodiment, the connecting device includes a connecting plate and a sliding member, wherein the sliding member is disposed at an end of the connecting plate and is connected to the sliding frame.

[0012] Beneficial effects

[0013] By incorporating a sliding component, the connecting device can move flexibly along the length of the sliding frame and be positioned and fixed when needed, facilitating the adjustment of the flaw detection device's position according to the actual spacing between the wire ropes.

[0014] In one alternative implementation, the slider is a sliding latch.

[0015] In one optional embodiment, the flaw detection device is provided with a plurality of bolts, and the connecting plate is provided with a plurality of threaded holes, the bolts being screwed into the threaded holes.

[0016] Beneficial effects

[0017] A secure connection between the flaw detection device and the connecting plate is achieved by bolts. Furthermore, by adjusting the tightness of the threaded connection, the longitudinal installation distance of the flaw detection device relative to the ladder frame can be flexibly adjusted, thereby ensuring that the detection port of the flaw detection device and the wire rope remain coaxial and concentric, thus ensuring detection accuracy and stability.

[0018] In one optional embodiment, the sliding frame includes: a first crossbeam and a first connecting rod, the two first crossbeams being spaced apart along the length of the column, and the two ends of the first connecting rod being connected to the two first crossbeams respectively.

[0019] In one optional embodiment, the fixing frame includes: a second crossbeam and a second connecting rod, the two second crossbeams are spaced apart along the length of the column, the two ends of the second connecting rod are respectively connected to the two second crossbeams, and one end of the second crossbeam is provided with a sliding groove, and one end of the first crossbeam is slidably disposed in the sliding groove.

[0020] In one alternative embodiment, the other end of the first crossbeam and the other end of the second crossbeam are connected to the column by a fixing buckle.

[0021] In one alternative embodiment, the length of the first crossbeam is greater than the length of the second crossbeam, and the two connecting devices are spaced apart on the first crossbeam.

[0022] In one optional embodiment, the flaw detection device includes: a base, an arc-shaped flaw detection cover, and a flaw detection sensor. The base is connected to the connecting device, the arc-shaped flaw detection cover is hinged to the base, and the flaw detection sensor is disposed on the arc-shaped inner wall of the arc-shaped flaw detection cover.

[0023] In one alternative implementation, the flaw detector is a magnetic leakage sensor. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a wire rope flaw detection device according to an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the flaw detection device according to an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 11. Sliding frame; 111. First crossbeam; 112. First connecting rod; 12. Fixed frame; 121. Second crossbeam; 122. Second connecting rod; 13. Fixed buckle;

[0029] 2. Columns;

[0030] 31. Sliding component;

[0031] 4. Flaw detection device; 41. Bolt; 42. Base; 43. Arc-shaped flaw detection cover;

[0032] 5. Steel wire rope. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] The following is combined Figures 1 to 2 The following describes embodiments of the present invention.

[0035] According to an embodiment of the present invention, a wire rope flaw detection device is provided, comprising: a ladder frame, multiple connecting devices, and multiple flaw detection devices 4. The ladder frame includes: a sliding frame 11 and a fixed frame 12. One end of the sliding frame 11 is slidably connected to one end of the fixed frame 12, and the other end of the sliding frame 11 is adapted to connect to a column 2 on one side of the fan ladder. The other end of the fixed frame 12 is adapted to connect to a column 2 on the other side of the fan ladder. Multiple connecting devices are spaced apart on the sliding frame 11, and the connecting devices have a sliding state and a fixed state. Each flaw detection device 4 is correspondingly disposed on one connecting device, and the wire rope 5 passes through the detection port of the flaw detection device 4.

[0036] One end of the sliding frame 11 and one end of the fixed frame 12 form a sliding fit, giving the entire ladder frame a certain degree of lateral telescopic adjustment capability, thus adapting to fan ladders of different widths. Multiple connecting devices are spaced apart along the length of the sliding frame 11. Each connecting device has a sliding state and a fixed state. In the sliding state, the connecting device can move along the length of the ladder frame to the detection position of the wire rope 5; in the fixed state, the connecting device is locked in the detection position to meet the flaw detection requirements under different wire rope 5 spacings. The flaw detection device 4 has a detection port for the wire rope 5 to pass through, allowing real-time detection of the condition of the wire rope 5 during operation.

[0037] The sliding frame 11 and the fixed frame 12, connected by a sliding connection, form an adjustable-length ladder frame. This allows for telescoping and telescoping based on the actual spacing between the ladder columns 2 of different wind turbines, thereby improving the versatility and adaptability of the wire rope flaw detection device on different types of wind turbines. Multiple connecting devices are spaced apart on the sliding frame 11, possessing both sliding and fixed states, enabling the flaw detection device 4 to flexibly adjust its fixed position for precise alignment with wire ropes 5 laid at different intervals. Each flaw detection device 4 is equipped with a detection port for the wire rope 5 to pass through, ensuring precise positioning during the flaw detection process and improving the detection stability and accuracy of the wire rope 5.

[0038] In one embodiment, the sliding frame 11 includes a first crossbeam 111 and a first connecting rod 112. The two first crossbeams 111 are spaced apart along the length of the column 2, and the two ends of the first connecting rod 112 are respectively connected to the two first crossbeams 111.

[0039] Specifically, two first crossbeams 111 are arranged parallel to each other and spaced apart along the length of the wind turbine ladder column 2, and are installed on the same side of the wind turbine ladder column 2. A first connecting rod 112 is disposed between the two first crossbeams 111, with its two ends perpendicularly connected to the two first crossbeams 111 respectively, forming a stable rectangular frame structure. The first connecting rod 112 plays a supporting and stabilizing role, enabling the sliding frame 11 to have good overall rigidity and load-bearing capacity.

[0040] Both the first crossbeam 111 and the first connecting rod 112 are made of rigid metal profiles, possessing good structural strength and corrosion resistance, and are able to adapt to the complex environment of wind power generation sites.

[0041] In one embodiment, the fixing frame 12 includes: a second crossbeam 121 and a second connecting rod 122. The two second crossbeams 121 are spaced apart along the length of the column 2. The two ends of the second connecting rod 122 are respectively connected to the two second crossbeams 121. A groove is provided at one end of the second crossbeam 121, and one end of the first crossbeam 111 is slidably disposed in the groove.

[0042] Specifically, two second crossbeams 121 are arranged parallel to each other and spaced apart along the length of the fan ladder column 2. A second connecting rod 122 is provided between the two second crossbeams 121. The two ends of the second connecting rod 122 are vertically connected to the two second crossbeams 121 respectively, which serves to reinforce the fixing frame 12.

[0043] The second crossbeam 121 has a groove extending in the transverse direction at one end near the first crossbeam 111. A sliding track is provided on the inner surface of the groove. The end of the first crossbeam 111 in the sliding frame 11 near the second crossbeam 121 is inserted into the groove in the second crossbeam 121, realizing a sliding connection between the fixed frame 12 and the sliding frame 11. The sliding frame 11 can slide freely relative to the fixed frame 12 in the width direction of the wind turbine ladder, adapting to wind turbine ladder columns 2 with different spacing based on the overall length of the ladder frame.

[0044] The second crossbeam 121 and the second connecting rod 122 are also made of rigid metal profiles to ensure that the flaw detection device 4 has good support strength and structural stability during operation.

[0045] In one embodiment, the length of the first crossbeam 111 is greater than the length of the second crossbeam 121, and the two connecting devices are spaced apart on the first crossbeam 111.

[0046] Specifically, in order to enhance the sliding adjustment range of the ladder frame and provide more installation space for the wire rope flaw detection device, the extension length of the first crossbeam 111 is greater than the length of the second crossbeam 121, so that the sliding frame 11 has a larger sliding range than the fixed frame 12, and the sliding frame 11 can adapt to a wider spacing of the ladder columns 2.

[0047] In one embodiment, the other end of the first crossbeam 111 and the other end of the second crossbeam 121 are connected to the column 2 via a fixing buckle 13.

[0048] Specifically, the other ends of the first crossbeam 111 and the second crossbeam 121 are provided with mounting holes or slots for installing the fixing buckle 13. The fixing buckle 13 is made of elastic fastener, quick lock or threaded locking structure, which can firmly fix the other end of the crossbeam to the corresponding column 2.

[0049] During installation, workers can attach the other ends of the first crossbeam 111 and the second crossbeam 121 to the surfaces of the columns 2 on the corresponding sides of the fan ladder, and fasten them to the outer wall of the column 2 using the fixing buckle 13.

[0050] In other embodiments, the other end of the first crossbeam 111 and the other end of the second crossbeam 121 can also be connected to the column 2 of the fan ladder via magnetic chucks. High-strength permanent magnets or electromagnetic chucks are provided at the ends of the first crossbeam 111 and the second crossbeam 121. The magnetic chucks are attracted to the surface of the ladder column 2 made of metal material by magnetic force, realizing rapid positioning and fixation between the first crossbeam 111 and the second crossbeam 121 and the column 2.

[0051] In one embodiment, the connecting device includes a connecting plate and a slider 31, wherein the end of the connecting plate is provided with the slider 31, and the slider 31 is connected to the sliding frame 11.

[0052] Specifically, the connecting plate has a rectangular plate structure, and a flaw detection device 4 is installed on the side of the connecting plate near the wire rope 5. A sliding member 31 is fixedly connected to the top of the connecting plate. The sliding member 31 is adapted to the shape of the first crossbeam 111 and can slide along the length of the first crossbeam 111.

[0053] During installation, the sliding component 31 is assembled on the first crossbeam 111. The operator can push the connecting plate and its sliding component 31 to move along the first crossbeam 111, adjust the flaw detection device 4 to the position of the corresponding wire rope 5, and then lock the sliding component 31, thereby realizing the flexible adjustment and stable installation of the flaw detection device 4.

[0054] In one embodiment, the slider 31 is a sliding latch.

[0055] Specifically, the sliding buckle includes a slot body that matches the first crossbeam 111 and an elastic buckle. The slot body has a sliding slot that fits the outer wall of the first crossbeam 111. The slot body is hung on the outer wall of the first crossbeam 111 and can slide smoothly along the length of the first crossbeam 111. The elastic buckle is set on the slot body and usually uses a spring sheet, snap ring, or elastic protrusion structure. It can be inserted into the preset positioning hole on the slot body after the slider 31 slides to the detection position to lock the position of the slider 31.

[0056] In actual operation, the operator slides the sliding buckle along the first crossbeam 111 to the detection position corresponding to the position of the wire rope 5, and then presses the elastic buckle into the positioning hole to complete the quick fixation of the connecting device. If it is necessary to adjust the flaw detection position of the flaw detection device 4, simply open the elastic buckle to disengage it from the positioning hole, and then slide it back to the new flaw detection position.

[0057] In one embodiment, the flaw detection device 4 is provided with a plurality of bolts 41, and a plurality of threaded holes are correspondingly provided on the connecting plate, and the bolts 41 are screwed into the threaded holes.

[0058] Specifically, the flaw detection device 4 has two bolts 41 at its bottom. Correspondingly, threaded holes are pre-drilled on the two connecting plates, with the hole diameter matching the diameter of the bolts 41. During installation, the operator screws the two bolts 41 on the flaw detection device 4 onto the connecting plates in sequence to achieve a firm fixation between the flaw detection device 4 and the connecting plates.

[0059] The threaded connection structure not only ensures the stability of the flaw detection device 4 installation, but also facilitates the adjustment of the relative position between the flaw detection device 4 and the connecting plate as needed. By selecting washers of different thicknesses or adjusting the thread tightness, the longitudinal height position of the flaw detection device 4 relative to the ladder can be finely adjusted, so that the detection port of the flaw detection device 4 and the wire rope 5 are kept coaxially aligned, thereby improving the accuracy and sensitivity of flaw detection.

[0060] In one embodiment, the flaw detection device 4 includes: a base 42, an arc-shaped flaw detection cover 43, and a flaw detection sensor. The base 42 is connected to a connecting device, the arc-shaped flaw detection cover 43 is hinged to the base 42, and the flaw detection sensor is disposed on the arc-shaped inner wall of the arc-shaped flaw detection cover 43.

[0061] Specifically, the base 42 is fixed to the sliding frame 11 via a connecting device. A mounting hinge is provided on the top of the base 42, and one end of the arc-shaped flaw detection cover 43 is hinged to the base 42 via the hinge, which can be rotated to open or close around the hinge axis, thereby facilitating the clamping and release operation of the wire rope 5.

[0062] The inner side of the arc-shaped flaw detection cover 43 is an arc-shaped structure that fits the outer diameter of the wire rope 5. Flaw detection sensors are arranged on its inner wall. The sensors can be arranged in a semi-circular or circular array to ensure that the wire rope 5 can be detected in a surrounding manner when the arc-shaped flaw detection cover 43 is closed. The flaw detection sensors are connected to an external signal processing module through wires, which can realize real-time sensing and data transmission of internal defects of the wire rope 5, such as broken wires, corrosion, and wear.

[0063] In one embodiment, the flaw detector is a magnetic leakage sensor.

[0064] Specifically, the magnetic leakage sensor is installed on the inner arc surface of the arc-shaped flaw detection cover 43, which can cover the circumferential surface of the wire rope 5. The magnetic leakage sensor integrates a magnetization device and a magnetic field change sensing module. When the wire rope 5 passes through the flaw detection device 4, the magnetic leakage sensor applies a magnetic field to the wire rope 5 and senses the magnetic leakage signal generated by the wire rope 5 during operation in real time.

[0065] When the steel wire rope 5 experiences structural damage such as broken wires, corrosion, or cracks, it will generate local magnetic flux anomalies. The magnetic leakage sensor can sensitively capture these changes and convert them into electrical signals, which are then transmitted to the external signal processing module, thereby enabling accurate identification of the location and extent of damage to the steel wire rope 5.

[0066] In another embodiment, an ultrasonic flaw detector can also be used. The ultrasonic flaw detector identifies whether there is damage, inclusions, or voids inside the wire rope 5 by emitting high-frequency ultrasonic signals to the wire rope 5 and receiving the reflected waves.

[0067] Usage procedure: First, adjust the unfolded length of the sliding frame 11 and the fixed frame 12 according to the actual width of the fan ladder, so as to match the spacing of the columns 2 on both sides of the fan ladder. The sliding frame 11 and the fixed frame 12 are connected and fixed to the columns 2 on both sides of the fan ladder by the fixing buckles 13.

[0068] Then, according to the spacing between the wire ropes 5, each connecting device is slid along the length of the sliding frame 11. After the connecting device slides to the position of the corresponding wire rope 5, the sliding member 31 is locked.

[0069] Next, open the arc-shaped flaw detection cover 43 of each flaw detection device 4, place the steel wire rope 5 into the detection port of the flaw detection device 4, and then close and lock the flaw detection cover to ensure that the steel wire rope 5 and the flaw detection device 4 are coaxially aligned.

[0070] After the flaw detection device 4 is started, the flaw detection sensor begins to monitor the passing steel wire rope 5 in real time. The sensing signal is transmitted to the signal processing module through the wire and the defect identification and analysis are performed. When a damage signal is detected in the steel wire rope 5, an alarm will be issued.

[0071] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A wire rope flaw detection device, characterized in that, include: A ladder frame, comprising: a sliding frame (11) and a fixed frame (12), one end of the sliding frame (11) being slidably connected to one end of the fixed frame (12), the other end of the sliding frame (11) being adapted to connect to a column (2) on one side of the fan ladder, and the other end of the fixed frame (12) being adapted to connect to a column (2) on the other side of the fan ladder; Multiple connecting devices are spaced apart on the sliding frame (11), and the connecting devices have a sliding state and a fixed state; Multiple flaw detection devices (4), each flaw detection device (4) is correspondingly set on one of the connecting devices, and (5) a steel wire rope (5) passes through the detection port of the flaw detection device (4).

2. The wire rope flaw detection device according to claim 1, characterized in that, The connecting device includes a connecting plate and a sliding member (31), wherein the sliding member (31) is provided at the end of the connecting plate and the sliding member (31) is connected to the sliding frame (11).

3. The wire rope flaw detection device according to claim 2, characterized in that, The sliding element (31) is a sliding buckle.

4. The wire rope flaw detection device according to claim 2, characterized in that, The flaw detection device (4) is provided with multiple bolts (41), and multiple threaded holes are correspondingly provided on the connecting plate. The bolts (41) are screwed into the threaded holes.

5. The wire rope flaw detection device according to claim 1, characterized in that, The sliding frame (11) includes a first crossbeam (111) and a first connecting rod (112). The two first crossbeams (111) are spaced apart along the length of the column (2), and the two ends of the first connecting rod (112) are respectively connected to the two first crossbeams (111).

6. The wire rope flaw detection device according to claim 5, characterized in that, The fixing frame (12) includes: a second crossbeam (121) and a second connecting rod (122). The two second crossbeams (121) are spaced apart along the length of the column (2). The two ends of the second connecting rod (122) are respectively connected to the two second crossbeams (121), and a sliding groove is provided at one end of the second crossbeam (121). One end of the first crossbeam (111) is slidably disposed in the sliding groove.

7. The wire rope flaw detection device according to claim 6, characterized in that, The other end of the first crossbeam (111) and the other end of the second crossbeam (121) are connected to the column (2) by a fixing buckle (13).

8. The wire rope flaw detection device according to claim 6, characterized in that, The length of the first crossbeam (111) is greater than the length of the second crossbeam (121), and the two connecting devices are spaced apart on the first crossbeam (111).

9. The wire rope flaw detection device according to claim 1, characterized in that, The flaw detection device (4) includes: a base (42), an arc-shaped flaw detection cover (43) and a flaw detection sensor. The base (42) is connected to the connecting device, the arc-shaped flaw detection cover (43) is hinged to the base (42), and the flaw detection sensor is disposed on the arc-shaped inner wall of the arc-shaped flaw detection cover (43).

10. The wire rope flaw detection device according to claim 9, characterized in that, The flaw detector is a magnetic leakage detector.

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