Steel wire rope fatigue monitoring device

Abstract

The invention belongs to the technical field of detection instruments, and particularly relates to a steel wire rope fatigue monitoring device which comprises a detector body and a supporting suspension used for clamping and placing the detector body. The detector machine body comprises two groups of machine body units which are symmetrically arranged; the supporting suspension comprises a base, a rotating and swinging supporting plate rotationally connected to the base, and a regulating and controlling supporting plate, a clamping plate and an inner supporting plate which are sequentially and horizontally stacked on the rotating and swinging supporting plate. Wherein the machine body unit is detachably connected to the clamping plate in a clamped mode through a limiting mechanism, a rotating support is integrally formed in the center of the inner supporting plate, the clamping plate is fixedly connected to the rotating support in a sleeving mode, and a center ball head rotationally connected to the rotating support is integrally formed in the center of the adjusting and controlling supporting plate. The distance between the detection surface and the steel wire rope can be automatically adjusted in the detection process, the detection surface and the steel wire rope are always kept parallel, the steel wire rope is prevented from making contact with the detection surface, meanwhile, too thick oil sludge can be cleaned under the condition that the steel wire rope is not damaged, and the detection precision is improved.

Description

Technical Field

[0001] This invention belongs to the field of testing instrument technology, specifically relating to a wire rope fatigue monitoring device. Background Technology

[0002] Fatigue monitoring of wire ropes is generally achieved using elevator wire rope flaw detectors, which are devices used to detect damage to elevator wire ropes. Taking the TCK.W elevator wire rope flaw detector as an example, it consists of a travel encoder, a magnetic field change sensor, a guide wheel, a rechargeable lithium battery, and a microcomputer. It can display quantitative values ​​of broken wires, corrosion, wear, and changes in metal cross-sectional area inside and outside the wire rope in real time, and provide diagnostic reports and solutions according to current standards and regulations.

[0003] Elevator wire rope flaw detectors generally employ electromagnetic detection technology. They indirectly infer damage by identifying changes in the magnetic field state of the wire rope, and quantify the degree of damage based on the extent of the magnetic field change. Specifically, under natural conditions, the spin magnetic moments of the magnetic domains in the wire rope are disordered, making it impossible to distinguish between normal and defective states using electromagnetic methods. Applying an external magnetic field to the wire rope alters the number of magnetic domains in a specific direction within the ferromagnetic material, giving all load materials a moderately low-order magnetic energy product, thus forming a memory magnetic field. This memory magnetic field does not disappear when the external magnetic field is removed and will remain stable for a long time unless there is severe mechanical vibration or high temperature. When the wire rope material undergoes degradation such as broken wires, wear, corrosion, or fatigue, stress concentration occurs. Magnetic lines of force in the degraded volume elements can only be arranged along irregular paths, resulting in changes in magnetic flux density and uneven distribution of magnetic energy, leading to differences in magnetic potential distribution across volume elements. By calibrating the magnetic potential characteristic information of the normal volume element memory of the wire rope and comparing it with other extracted volume element information, the difference in magnetic potential caused by the degradation of the wire rope can be effectively identified. By analyzing the quantitative relationship between the physical field variable information and the corresponding mechanical bearing capacity, the technical goal of quantitative detection of wire rope can be achieved.

[0004] However, the aforementioned elevator wire rope flaw detector needs to be placed inside the elevator shaft to test the wire rope. Since the space inside the elevator shaft is generally quite cramped, the elevator wire rope flaw detector cannot be properly adjusted during placement, resulting in the detection surface not achieving a good parallel distance with the wire rope. This could lead to the wire rope touching the detection surface during the wire rope lifting and lowering test, which could not only damage the instrument but also cause errors in the test results.

[0005] Secondly, elevator wire ropes have a lot of lubricating oil adhering to their surface for lubrication. If this lubricating oil adheres to the wire rope for a long time and becomes too thick, it will also affect the accuracy of instrument detection. Summary of the Invention

[0006] The purpose of this invention is to provide a wire rope fatigue monitoring device that can autonomously adjust the distance between the detection surface and the wire rope during the detection process to keep them parallel at all times, thus avoiding contact between the wire rope and the detection surface. At the same time, it can clean excessively thick sludge without damaging the wire rope, thereby improving the detection accuracy.

[0007] The specific technical solution adopted by this invention is as follows: A wire rope fatigue monitoring device includes a testing instrument body and a support suspension for clamping and placing the testing instrument body; The detector body comprises two sets of body units arranged symmetrically. The support suspension includes a base, a swivel support plate rotatably connected to the base, and an adjustment support plate, a clamping plate, and an inner support plate that are horizontally stacked sequentially on the swivel support plate. The machine body unit is detachably snapped onto the clamping plate by means of a limiting mechanism. A rotating support is integrally formed at the center of the inner support plate. The clamping plate is fixedly sleeved on the rotating support. A central ball head is integrally formed at the center of the regulating support plate and rotatably connected to the rotating support. A first drive mechanism for primary adjustment of the detector body is provided between the base and the swing support plate. A second drive mechanism for secondary adjustment of the detector body is provided between the regulating support plate, the clamping plate, and the inner support plate.

[0008] As a preferred embodiment, the limiting mechanism includes connecting grooves formed on the top and bottom surfaces of the body unit and a knob rod threaded to the clamping plate. The end of the knob rod is fixedly connected to an abutment embedded in the connecting groove. The abutment is frustoconical in shape, and the diameter of its bottom opening is smaller than the diameter of the connecting groove.

[0009] As a preferred embodiment, the first driving mechanism includes a bottom support integrally formed on the base, a servo motor mounted on the base, and a pendulum support integrally formed on the bottom of the pendulum support plate. The pendulum support is rotatably connected to the bottom support, and the power output end of the servo motor is connected to the pendulum support via a coupling to drive the pendulum support plate to perform primary adjustment of the detector body.

[0010] As a preferred embodiment, the first drive mechanism further includes a linear motor vertically mounted on the inner wall of the gyratory support plate, and the adjustment support plate is fixedly mounted on the slide of the linear motor to drive the adjustment support plate to vertically raise and lower to adjust the height of the detector body.

[0011] As a preferred embodiment, the second drive mechanism includes a miniature cylinder fixedly mounted on the control plate, a ball bushing slidably mounted on the clamping plate, and a positioning groove formed on the inner support plate. The power output end of the miniature cylinder is fixedly mounted with a ball head that is rotatably embedded inside the ball bushing, and the end of the ball bushing is fixedly mounted with a positioning head that is embedded in the positioning groove for limiting the position.

[0012] As a preferred embodiment, at least three sets of the miniature cylinder, the ball bushing, and the positioning groove are arranged in a circumferential array around the rotating support.

[0013] As a preferred embodiment, the inner support plate has a first wing support plate integrally formed on both sides, the adjustment support plate has a second wing support plate integrally formed on both sides, the second wing support plate and the first wing support plate are rotatably connected by a universal ball joint, the swing support plate has a slider vertically slidably connected, and the miniature cylinder is vertically mounted on the slider.

[0014] As a preferred embodiment, the top and bottom surfaces of the clamping plate are respectively provided with a laser radar ranging sensor for positioning and ranging, and a scraper for cleaning the oil and mud on the surface of the wire rope. The laser radar ranging sensor is fixedly installed on the clamping plate, and the scraper is installed on the clamping plate by means of a telescopic mechanism. The telescopic mechanism includes a support box fixedly installed on the clamping plate, a micro motor installed in the support box, and a gear directly connected to the power output end of the micro motor. The handle of the scraper is slidably connected to the support box. The scraper has a toothed groove that meshes with the gear to drive the scraper to telescopically move and change the distance from the wire rope.

[0015] As a preferred embodiment, the clamping plate, the lidar ranging sensor, and the scraper are provided in two sets on the two sets of the body units, and the two sets of lidar ranging sensors and the scraper are arranged alternately in an upside-down manner.

[0016] As a preferred embodiment, the body unit is fixedly equipped with interlocking rods and insertion holes that interlock with the rods. The rods and insertion holes are fixedly connected by positioning pins. The two sets of body units are also respectively equipped with a first positioning guide wheel and a second positioning guide wheel that cooperate to limit the movement of the wire rope.

[0017] The technical effects achieved by this invention are as follows: This invention constructs a space-saving support suspension by stacking and combining a clamping plate, a base, a swing support plate, an inner support plate, and an adjustment support plate. This allows for application in confined environments such as elevator shafts. Simultaneously, a servo motor and a linear motor work together to significantly adjust the initial angle of the machine unit relative to the wire rope. Subsequent fine-tuning using a micro-cylinder ensures that the detection surface of the machine unit is parallel to the wire rope. Furthermore, a laser radar ranging sensor continuously monitors and autonomously adjusts the sensor during the wire rope's movement, ensuring that the detection surface of the machine unit remains parallel to the wire rope throughout the detection process, preventing contact and guaranteeing detection accuracy. This also prevents the wire rope from touching the machine unit, making the device safer to use during detection.

[0018] This invention utilizes a laser radar ranging sensor and a scraper blade, along with a micro motor and gears, to adjust the distance between the scraper blade and the wire rope in real time during the detection process. This ensures that the scraper blade contacts areas on the wire rope where the sludge exceeds a certain thickness, effectively removing excess sludge and preventing it from affecting the detection of the machine unit, thus improving detection accuracy. Furthermore, the scraper blade only contacts the excess sludge, maintaining a distance from the wire rope surface, preventing damage to the wire rope during sludge removal and ensuring the safety of the detection process. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 This is a three-dimensional structural schematic diagram from another perspective of an embodiment of the present invention; Figure 3 This is an exploded view of an embodiment of the present invention; Figure 4 This is an exploded view from another perspective of an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure supporting the suspension in an embodiment of the present invention; Figure 6 This is a schematic diagram of the combined structure of the base and the pendulum support plate in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the regulating support plate in an embodiment of the present invention; Figure 8 This is a schematic diagram of the clamping plate in an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the scraper blade in an embodiment of the present invention; Figure 10 This is a schematic diagram of the inner support plate in an embodiment of the present invention; Figure 11 This is a top sectional view of an embodiment of the present invention; Figure 12This is another top sectional view of an embodiment of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: 1. The testing instrument body; 11. Body unit; 12. Connecting slot; 13. Insert rod; 14. Positioning pin; 15. First positioning guide wheel; 16. Second positioning guide wheel; 2. Support suspension; 21. Clamping plate; 211. Knob lever; 212. Abutment bolt; 213. Ball bearing sleeve; 214. Positioning head; 22. Base; 221. Base support; 222. Servo motor; 23. Swing support plate; 231. Gyratory support; 232. Linear motor; 233. Slider; 24. Inner support plate; 241. Positioning groove; 242. Rotary support; 243. First wing support plate; 25. Adjust the support plate; 251. Miniature cylinder; 252. Ball joint; 253. Center ball joint; 254. Second wing support plate; 26. LiDAR ranging sensor; 27. Scraper; 271. Support box; 272. Miniature motor; 273. Gear; 274. Gear groove. Detailed Implementation

[0021] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0022] like Figures 1-12 As shown, a wire rope fatigue monitoring device includes a testing instrument body 1 and a support suspension 2 for holding and placing the testing instrument body 1. The support suspension 2 adjusts the testing instrument body 1 so that its testing surface remains parallel to the wire rope during the testing process. This prevents the wire rope from coming into contact with the testing instrument body 1 during movement, thus avoiding damage to the testing instrument body 1 and ensuring testing accuracy.

[0023] See attached document Figures 1-3The detector body 1 includes two symmetrically arranged body units 11, and each body unit 11 is fixedly equipped with a plug-in rod 13 and a socket for plugging into the plug-in rod 13, so that the two body units 11 can be interlocked into one, thereby wrapping the steel wire rope from both sides and allowing the steel wire rope to pass through between them for testing; at the same time, the plug-in rod 13 and the socket are fixed by a positioning pin 14, so that they will not separate during the testing process.

[0024] Furthermore, each of the two machine body units 11 is equipped with a first positioning guide wheel 15 and a second positioning guide wheel 16 that cooperate to limit the movement of the wire rope. An encoder is connected to the second positioning guide wheel 16, which calculates the detected length by rotating in contact with the wire rope in order to control the detection process. Meanwhile, the first positioning guide wheel 15 is mounted on a torsion spring base, so that it can use the elasticity of the torsion spring to fit against the second positioning guide wheel 16. Thus, the two work together to clamp the wire rope in the middle for limiting and monitoring the detected length.

[0025] See attached document Figures 3-5 The support suspension 2 includes a base 22, a swing plate 23 rotatably connected to the base 22, and an adjustment plate 25, a clamping plate 21, and an inner support plate 24 stacked horizontally on the swing plate 23 in sequence. Together, they form an adjustable device that occupies a small space and can be used in cramped environments such as elevator shafts to adjust the detector body 1.

[0026] See attached document Figures 4-6 A base 22 is integrally formed with a bottom support 221, and a servo motor 222 is installed on the base 22. Correspondingly, a swing support plate 23 is integrally formed with a swing support 231 at its bottom. By rotatably connecting the swing support 231 to the bottom support 221, and by connecting the power output end of the servo motor 222 to the swing support 231 through a coupling, the servo motor 222 can drive the swing support plate 23 to rotate relative to the base 22, thereby making a preliminary adjustment to the tilt angle of the detector body 1. When the detector body 1 is assembled with the wire rope for testing, the parallel angle can be adjusted significantly to keep the two in an initial parallel state.

[0027] Furthermore, a linear motor 232 is vertically installed on the inner wall of the swing support plate 23, and the adjustment support plate 25 is fixedly installed on the slide of the linear motor 232. The linear motor 232 drives the adjustment support plate 25 to vertically raise and lower, thereby adjusting the height of the detector body 1, increasing its rotation space, and enabling it to swing at a larger angle, thus maintaining sufficient parallelism with the wire rope for the purpose of detection.

[0028] See attached document Figures 5-10The inner support plate 24 has a rotating support 242 integrally formed at its center, and the clamping plate 21 is fixedly sleeved on the rotating support 242. At the same time, the control plate 25 has a central ball head 253 integrally formed at its center and rotatably connected to the rotating support 242, so that the clamping plate 21 and the inner support plate 24 can rotate synchronously relative to the control plate 25 at multiple angles, thereby realizing multi-angle adjustment of the detector body 1 and making it more accurately parallel to the wire rope.

[0029] In order to detachably clamp the instrument body 1 onto the clamping plate 21, the top and bottom surfaces of the body unit 11 are provided with connecting grooves 12. At the same time, a knob rod 211 is threadedly connected to the clamping plate 21, and an abutment 212 is fixedly connected to the end of the knob rod 211. The abutment 212 is truncated cone-shaped, and the diameter of the bottom opening is smaller than the diameter of the connecting groove 12. By rotating the knob rod 211 by thread, the abutment 212 is embedded into the connecting groove 12, which can realize the detachable connection between the clamping plate 21 and the body unit 11. At the same time, the truncated cone-shaped mechanism of the abutment 212 also makes the connection between the two more stable and will not easily separate during the detection process.

[0030] It should be noted that at least one set of knob rod 211, contact bolt 212 and corresponding connecting groove 12 are provided on one side surface of body unit 11. In this embodiment, two sets are provided on one side surface of body unit 11, for a total of four sets. By utilizing the interaction force of the frustum structure, the stability of the connection can be guaranteed, and separation will not occur during use.

[0031] See attached document Figures 11-12 In order to perform secondary adjustment of the detector body 1, a miniature cylinder 251 is fixedly installed on the control plate 25, and a ball bushing 213 is slidably installed on the clamping plate 21. Correspondingly, a positioning groove 241 is provided on the inner support plate 24, and a ball head 252 is fixedly installed on the power output end of the miniature cylinder 251. The ball head 252 is inserted into the ball bushing 213, and a positioning head 214 is fixedly installed at the end of the ball bushing 213. By inserting it into the positioning groove 241, it can abut against the positioning groove 241 to limit the position of the combination of the clamping plate 21 and the inner support plate 24, thereby limiting the position of the detector body 1. After adjusting the position of the combination of the clamping plate 21 and the inner support plate 24 by extending and retracting the miniature cylinder 251, the positioning head 214 can be used in conjunction with the positioning groove 241 to fix the position, thereby maintaining a stable state.

[0032] It should be noted that at least three sets of miniature cylinders 251, ball bushings 213, and positioning grooves 241 are provided and arranged in a circular array around the rotating support 242; in this way, the three sets of miniature cylinders 251 can extend and retract synchronously to adjust the combination of clamping plate 21 and inner support plate 24 in three-dimensional space at a micro-angle, thereby achieving relative angle adjustment and adjusting the detection surface of the machine body unit 11 to be parallel to the wire rope.

[0033] In this embodiment, four sets of miniature cylinders 251, ball bushings 213, and positioning grooves 241 are arranged in a circumferential array around the rotating support 242. This allows the four sets of miniature cylinders 251 to work together, extending or contracting relative to each other. This causes the ball bushings 213 to slide along the mounting holes on the clamping plate 21, pulling the positioning head 214 away from or against the positioning groove 241. This, in turn, pushes the assembly of the clamping plate 21 and the inner support plate 24 to rotate around the central ball head 253, allowing for micro-angle adjustment of the assembly in three-dimensional space. This coordinated adjustment of the relative angle adjusts the detection surface of the machine unit 11 to be parallel to the wire rope. Furthermore, all four positioning heads 214 are frustum-length and made of rubber, allowing them to be stably embedded in the positioning grooves 241. This ensures the stability of the assembly of the clamping plate 21 and the inner support plate 24 after position adjustment, thereby guaranteeing the detection stability of the detector body 1.

[0034] Specific reference Figure 5 To improve the connection stability between the inner support plate 24 and the regulating support plate 25, the inner support plate 24 has a first wing support plate 243 integrally formed on both sides. Correspondingly, the regulating support plate 25 has a second wing support plate 254 integrally formed on both sides. The second wing support plate 254 and the first wing support plate 243 are rotatably connected by a universal ball joint. In this way, the two are stably connected without affecting the relative angle adjustment between the inner support plate 24 and the regulating support plate 25, thus making the device more stable in use.

[0035] Further, refer to the appendix. Figures 6-7 A slider 233 is vertically slidably connected to the swing support plate 23. The miniature cylinder 251 is vertically installed on the slider 233, so that the miniature cylinder 251 is stably supported while the height adjustment of the control support plate 25 is not affected, so that the components can coordinate with each other to meet the adjustment requirements.

[0036] See attached document Figure 5 as well as Figure 8To continuously monitor the distance between the detection surface and the wire rope during adjustment, two sets of clamping plates 21 are symmetrically arranged on the two sets of machine body units 11, thus symmetrically clamping the two sets of machine body units 11 used in combination and fixing them relative to the clamping plates 21. A laser radar ranging sensor 26 is installed on the clamping plates 21, and the two sets of laser radar ranging sensors 26 are arranged in reverse on the two sets of clamping plates 21 (i.e., one is fixedly installed on the top surface of the clamping plate 21, and the other is fixedly installed on the bottom surface of the other set of clamping plates 21). Utilizing this staggered structure, the distance between the detection surface and the wire rope is constantly monitored during adjustment. When the body unit 11 is positioned opposite each other on both sides of the wire rope, the distance between the detection surface and the wire rope can be measured from the bottom and top of the device. If the detection results of the two sets of lidar ranging sensors 26 are the same, it means that the detection surface is parallel to the wire rope. If the detection results are different, it means that the detection surface is not parallel to the wire rope. In this case, the control system needs to use the servo motor 222, the linear motor 232 and the micro cylinder 251 to start synchronously to adjust the relative position and angle of the body unit 11 so that they are relatively parallel, thereby ensuring the stability and accuracy of the device during the detection process.

[0037] Secondly, during the continuous movement and detection of the wire rope, the two sets of lidar ranging sensors 26 constantly monitor the distance between themselves and the wire rope. When the relative distance changes, the detection data is fed back to the control system. The control system then uses the servo motor 222, linear motor 232, and miniature cylinder 251 to fine-tune the machine body unit 11, ensuring that it remains relatively parallel to the wire rope. This prevents the wire rope from contacting the detection surface of the machine body unit 11, thus ensuring the accuracy of the detection and making the device safer to use during detection.

[0038] See attached document Figure 5 as well as Figure 9To remove excess sludge from the wire rope surface during inspection, a support box 271 is fixedly mounted on the clamping plate 21 on the opposite side of the laser radar ranging sensor 26. A micro motor 272 is installed inside the support box 271, and its power output is directly connected to a gear 273. A scraper 27 is slidably connected inside the support box 271. The handle of the scraper 27 is slidably connected to the support box 271, and its surface has a toothed groove 274 that meshes with the gear 273. The micro motor 272, through the engagement of the gear 273 and the toothed groove 274, drives the scraper 27 to extend and retract, thereby changing the relative position of the scraper to the wire rope. The distance between the laser radar ranging sensor 26 and the wire rope is measured and fed back to the control system. This causes the scraper 27 on the opposite side to extend and retract relative to the wire rope under the control of the control system via the micro motor 272, changing its distance from the wire rope and maintaining a specified distance between them. When the sludge on the surface of the wire rope exceeds this limit, it will contact the scraper 27 to remove the excessive sludge, thus avoiding affecting the detection accuracy. At the same time, the scraper 27 only contacts the excess sludge and maintains a distance from the surface of the wire rope, so that the wire rope will not be damaged during the sludge removal process, ensuring the safety of the detection.

[0039] It should be noted that in this embodiment, the micro motor 272 is a dual-axis DC motor in the same direction, so that the two drive ends can be directly connected to a gear 273 respectively. At the same time, the handle surface of the scraper 27 has two sets of meshing tooth grooves 274, so that the scraper 27 is driven synchronously on both sides, making it more stable when moving relative to each other and more stable during use.

[0040] Of course, in some other embodiments, the scraper 27 may not be provided, depending on the specific detection scenario and the model of the detector body 1. When the surface cleanliness of the wire rope is high and does not affect the detection, the scraper 27 is not required, so as to reduce the detection load of the device and improve the convenience of detection.

[0041] The working principle of this invention is as follows: When in use, firstly, the device is placed in a suitable position manually, and the two sets of machine body units 11 are placed opposite each other on both sides of the wire rope. At the same time, the insertion rod 13 and the positioning pin 14 are used to fix them together. Then, the placement position of the device is swung so that the detection surface of the machine body unit 11 is as parallel as possible to the wire rope.

[0042] Secondly, the control system controls two sets of lidar ranging sensors 26 to simultaneously detect the distance between the detection surface and the steel wire rope: If the detection results of the two sets of lidar ranging sensors 26 are the same, it means that the detection surface is parallel to the wire rope, and the elevator can be started to move the wire rope for detection. If the detection results are different, it means that the detection surface is not parallel to the wire rope. In this case, the control system needs to use the servo motor 222, the linear motor 232 and the micro cylinder 251 to synchronously start and adjust the relative position and angle of the machine body unit 11 to make them relatively parallel before detection. Finally, during the detection process, the two sets of lidar ranging sensors 26 continuously monitor the distance between themselves and the wire rope. When the relative distance changes, the detection data is fed back to the control system. The control system then uses the servo motor 222, linear motor 232, and miniature cylinder 251 to fine-tune the machine body unit 11, ensuring that it remains relatively parallel to the wire rope. This prevents the wire rope from contacting the detection surface of the machine body unit 11, thus ensuring the accuracy of the detection and making the device safer to use during detection.

[0043] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A wire rope fatigue monitoring device, characterized in that, It includes a detector body (1) and a support suspension (2) for holding and placing the detector body (1). The detector body (1) includes two sets of body units (11) arranged symmetrically. The support suspension (2) includes a base (22), a swing plate (23) rotatably connected to the base (22), and an adjustment plate (25), a clamping plate (21), and an inner plate (24) stacked horizontally on the swing plate (23). The body unit (11) is detachably snapped onto the clamping plate (21) by setting a limiting mechanism. The inner support plate (24) has a rotating support (242) integrally formed at its center. The clamping plate (21) is fixedly sleeved onto the rotating support (242). The control support plate (25) has a central ball head (253) integrally formed at its center and rotatably connected to the rotating support (242). A first drive mechanism for primary adjustment of the detector body (1) is provided between the base (22) and the swing support plate (23). A second drive mechanism for secondary adjustment of the detector body (1) is provided between the control support plate (25), the clamping plate (21), and the inner support plate (24).

2. The wire rope fatigue monitoring device according to claim 1, characterized in that: The limiting mechanism includes a connecting groove (12) formed on the top and bottom surfaces of the body unit (11) and a knob rod (211) threaded onto the clamping plate (21). The end of the knob rod (211) is fixedly connected to an abutment (212) embedded in the connecting groove (12). The abutment (212) is frustoconical and its bottom diameter is smaller than the diameter of the connecting groove (12).

3. The wire rope fatigue monitoring device according to claim 1, characterized in that: The first driving mechanism includes a bottom support (221) integrally formed on the base (22), a servo motor (222) mounted on the base (22), and a pendulum support (231) integrally formed on the bottom of the pendulum support plate (23). The pendulum support (231) is rotatably connected to the bottom support (221). The power output end of the servo motor (222) is connected to the pendulum support (231) through a coupling to drive the pendulum support plate (23) to perform primary adjustment of the detector body (1).

4. The wire rope fatigue monitoring device according to claim 1, characterized in that: The first driving mechanism also includes a linear motor (232) vertically mounted on the inner wall of the swing support plate (23), and the adjustment support plate (25) is fixedly mounted on the slide of the linear motor (232) to drive the adjustment support plate (25) to vertically lift and lower to adjust the height of the detector body (1).

5. The wire rope fatigue monitoring device according to claim 1, characterized in that: The second drive mechanism includes a miniature cylinder (251) fixedly mounted on the control plate (25), a ball bushing (213) slidably mounted on the clamping plate (21), and a positioning groove (241) opened on the inner support plate (24). The power output end of the miniature cylinder (251) is fixedly mounted with a ball head (252) that is rotatably embedded inside the ball bushing (213). The end of the ball bushing (213) is fixedly mounted with a positioning head (214) that is embedded in the positioning groove (241) for limiting.

6. The wire rope fatigue monitoring device according to claim 5, characterized in that: At least three sets of the micro cylinder (251), the ball bushing (213), and the positioning groove (241) are provided and arranged in a circumferential array around the rotating support (242).

7. The wire rope fatigue monitoring device according to claim 5, characterized in that: The inner support plate (24) has a first wing support plate (243) integrally formed on both sides, and the adjustment support plate (25) has a second wing support plate (254) integrally formed on both sides. The second wing support plate (254) and the first wing support plate (243) are rotatably connected by a universal ball joint. A slider (233) is vertically slidably connected on the swing support plate (23), and the micro cylinder (251) is vertically installed on the slider (233).

8. The wire rope fatigue monitoring device according to claim 1, characterized in that: The clamping plate (21) is provided with a laser radar ranging sensor (26) for positioning and ranging and a scraper (27) for cleaning the oil and mud on the surface of the wire rope on its top and bottom surfaces, respectively. The laser radar ranging sensor (26) is fixedly installed on the clamping plate (21), and the scraper (27) is installed on the clamping plate (21) by means of a telescopic mechanism. The telescopic mechanism includes a support box (271) fixedly installed on the clamping plate (21), a micro motor (272) installed in the support box (271), and a gear (273) directly connected to the power output end of the micro motor (272). The handle of the scraper (27) is slidably connected in the support box (271). The scraper (27) has a toothed groove (274) that meshes with the gear (273) to drive the scraper (27) to telescopically move and change the distance from the wire rope.

9. The wire rope fatigue monitoring device according to claim 8, characterized in that: The clamping plate (21), the lidar ranging sensor (26), and the mud scraper (27) are provided in two sets on the two sets of the body units (11), and the two sets of lidar ranging sensors (26) and mud scrapers (27) are arranged alternately upside down.

10. The wire rope fatigue monitoring device according to claim 1, characterized in that: The body unit (11) is fixedly installed with plug rods (13) that are plugged into each other and with sockets that are plugged into the plug rods (13). The plug rods (13) and the sockets are fixedly connected by positioning pins (14). The two sets of body units (11) are also respectively provided with a first positioning guide wheel (15) and a second positioning guide wheel (16) that cooperate to limit the movement of the wire rope.

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