A steel wire rope detection device

Abstract

The utility model discloses a steel wire rope detection device, including detection box, both sides wall of detection box all assemble and hold subassembly, the inside rear side of detection box is assembled with detection board, the front side wall of detection box is passed through and is opened four steel wire rope detection holes, and the inside of each steel wire rope detection hole all has and inserts steel wire, the holding subassembly includes the clamping plate of assembling in the left and right two side walls of detection box, and the upper side wall of left and right two side clamping plate is installed with the axle seat perpendicularly, the setting of this steel wire rope detection device, the structure design is reasonable, through assembling holding subassembly in the both sides wall of detection box, utilizes the cooperation of spiral rod and spiral cylinder, can realize the stable clamping to steel wire rope, effectively avoids the deviation of steel wire rope in the detection process, guarantees the accuracy of detection result.

Description

Technical Field

[0001] This utility model relates to the field of steel wire rope testing technology for extruders, specifically a steel wire rope testing device. Background Technology

[0002] In industrial production and equipment operation, wire ropes, as crucial load-bearing and traction components, are widely used in mining, ports, elevators, and other fields. With increasing usage time, wire ropes suffer from strength reduction due to wear, corrosion, and broken wires, potentially leading to safety accidents. Therefore, accurate inspection of wire ropes is essential. Existing wire rope inspection devices have several shortcomings in structural design and inspection functions. Some devices suffer from poor stability in the fixing structure when securing the wire rope, causing the rope to easily shift during inspection and affecting the accuracy of the results. Furthermore, the sensor layout is often inadequate, making it difficult to comprehensively and accurately detect damage to all parts of the wire rope, resulting in low inspection efficiency and blind spots. In addition, the connection between the fixing structure and the main body of the existing inspection devices is not tight enough, easily loosening over prolonged use and further reducing the reliability of the inspection. Utility Model Content

[0003] The purpose of this invention is to provide a wire rope detection device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a wire rope detection device, comprising a detection box, wherein clamping assemblies are mounted on both side walls of the detection box, and a detection plate is mounted on the rear side of the interior of the detection box; four wire rope detection holes are provided through the front side wall of the detection box, and a wire is inserted into each of the wire rope detection holes; the clamping assemblies include clamping plates mounted on the left and right side walls of the detection box, and shaft seats are vertically mounted on the upper side walls of the left and right side clamping plates; a helical rod is installed in each of the two shaft seats, and a helical cylinder is assembled between the two helical rods, with the helical rod screwed into the helical cylinder; four wire rope detection sensors are mounted on the side wall of the detection plate, and a detection head is mounted at the end of each wire rope detection sensor, the detection head contacting the wire rope.

[0005] In a preferred embodiment of the wire rope testing device of this utility model, the two spiral rods are of the same size and have opposite thread directions, and the external threads of the two spiral rods are fitted with the inner wall of the spiral cylinder.

[0006] In a preferred embodiment of the wire rope detection device of this utility model, a fixing rod is installed at the bottom end of the clamping plate, a stabilizing plate is installed at the bottom end of the fixing rod, and abutment plates are installed on the side walls of the clamping plate and the stabilizing plate.

[0007] As a preferred embodiment of the wire rope detection device of this utility model, a rubber plate is installed on the side wall of the abutment plate, and the rubber plate is fitted to the outer wall of the detection box.

[0008] As a preferred embodiment of the wire rope detection device of this utility model, both the first clamping plate and the second clamping plate are L-shaped.

[0009] As a preferred embodiment of the wire rope detection device of this utility model, the four wire rope detection holes are arranged in a rectangular shape, and the positions of the wire rope detection holes and the rebar detection sensors correspond one-to-one.

[0010] In a preferred embodiment of the wire rope detection device of this utility model, the clamping plate and the stabilizing plate are arranged in parallel vertically.

[0011] As a preferred embodiment of the wire rope testing device of this utility model, the internal thread of the spiral cylinder is divided into left and right parts, which are respectively matched with the external threads of the left and right spiral rods.

[0012] The beneficial effects of this utility model are: the design of this wire rope detection device is reasonable. By assembling clamping components on both side walls of the testing chamber, and utilizing the cooperation of the screw rods and screw cylinders, stable clamping of the wire rope can be achieved, effectively preventing wire rope deviation during testing and ensuring the accuracy of the test results. The four wire rope detection holes on the front side wall of the testing chamber correspond one-to-one with the positions of the wire rope detection sensors on the internal testing plate and are arranged in a rectangular pattern, comprehensively covering the testing area of ​​the wire rope, improving testing efficiency, eliminating blind spots, and accurately detecting damage to various parts of the wire rope. Simultaneously, the fixing rod, stabilizing plate, abutment plate, and rubber plate installed at the bottom of the clamping plate in the clamping components enhance the connection stability between the clamping components and the testing chamber, preventing loosening during prolonged use and improving the overall reliability and service life of the testing device. Furthermore, the two screw rods are of the same size but with opposite thread directions, cooperating with the screw cylinder, making the adjustment of clamping force more convenient and efficient, further enhancing the practicality and testing efficiency of the testing device. Attached Figure Description

[0013] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the clamping component of this utility model; Figure 3 This is a schematic diagram of the detection plate of this utility model.

[0014] In the diagram: 1. Detection box; 2. Wire rope detection hole; 3. Detection plate; 4. Clamping assembly; 5. Wire rope detection sensor; 6. Detection head; 7. Spiral cylinder; 8. Spiral rod; 9. Shaft seat; 10. Clamping plate; 11. Fixing rod; 12. Stabilizing plate; 13. Backing plate; 14. Rubber plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-3 This utility model provides a technical solution: In this technical solution, a wire rope detection device includes a detection box 1. Clamping assemblies 4 are mounted on both side walls of the detection box 1. A detection plate 3 is mounted on the rear side of the interior of the detection box 1. Four wire rope detection holes 2 are opened through the front side wall of the detection box 1, and a wire is inserted into each wire rope detection hole 2. The clamping assemblies 4 include clamping plates 10 mounted on the left and right side walls of the detection box 1. Shaft seats 9 are vertically mounted on the upper side walls of the left and right side clamping plates 10. A spiral rod 8 is installed in each of the two shaft seats 9, and a spiral cylinder 7 is assembled between the two spiral rods 8, with the spiral rod 8 screwed into the spiral cylinder 7. Four wire rope detection sensors 5 are mounted on the side wall of the detection plate 3. Detection heads 6 are mounted at the ends of the wire rope detection sensors 5, and the detection heads 6 are in contact with the wire rope.

[0017] The core component is the testing box 1, which serves as the foundational framework of the entire system. It not only provides an installation platform for internal components but also protects against external environmental interference during the testing process. Made of 304 stainless steel plate with a precisely set thickness of 4mm, this material boasts excellent corrosion resistance and mechanical strength, enabling it to withstand complex industrial environments such as humidity and corrosive gases. The testing box 1's dimensions are optimized to be 650mm long, 400mm wide, and 300mm high. This design meets the installation requirements of internal components while facilitating equipment handling and on-site installation. The box's interior features a reinforcing rib structure, welded from 3mm thick stainless steel plate, arranged in a crisscross pattern to enhance rigidity and reduce interference from vibrations during testing. Four height-adjustable support feet are installed at the bottom of the testing box 1. These feet utilize a combination of screws and bases. The screws are 16mm in diameter and adjustable from 0-50mm. Rotating the screws allows for adaptation to varying ground flatness, ensuring the testing device remains level and providing a stable foundation for accurate testing. The clamping assemblies 4 are symmetrically mounted on both side walls of the testing box 1. These assemblies are key structures ensuring stable testing of the wire rope. The clamping assemblies 4 are connected to the testing box 1 via bolts. M10 threaded holes with a spacing of 80mm are pre-machined on the side walls of the testing box 1, and 8.8 grade M10 bolts are used for fastening, ensuring the connection strength can withstand the maximum tension during wire rope testing. The clamping assemblies 4 adopt a modular design for easy disassembly and maintenance. Each assembly contains an independent power adjustment and clamping structure, allowing for quick replacement of compatible parts according to the wire rope specifications. The detection board 3 is installed on the rear side inside the detection box 1. As the core carrier for sensor installation, it plays a decisive role in detection accuracy. Detection board 3 is made of FR-4 epoxy glass cloth, 10mm thick, with an immersion gold finish to improve the reliability and corrosion resistance of the circuit connections. Detection board 3 is fixed inside the detection box 1 by a custom-made L-shaped bracket. The bracket is made of aluminum alloy with an anodized surface. The bracket is connected to the detection box 1 with M6 bolts and to the detection board 3 with M4 bolts. Rubber gaskets are added at the connection points for shock absorption and insulation. The detection board 3 integrates signal processing circuitry, employing a low-noise operational amplifier and a high-precision A / D converter. It amplifies, filters, and performs analog-to-digital conversion on the sensor signals, converting analog signals into digital signals for transmission to the external control system. The signal conversion accuracy reaches 16 bits. Four wire rope inspection holes 2 are provided on the front side wall of the inspection box 1. Their layout and dimensions are strictly designed according to the internal wire arrangement of the wire rope. The four wire rope inspection holes 2 are arranged in a 2×2 rectangle, with a horizontal hole spacing of 30mm and a vertical hole spacing of 25mm. This spacing is suitable for the wire distribution of most common wire rope specifications. The holes are circular, with a diameter 1.5mm larger than the wire diameter. The hole walls are finely ground, with a surface roughness Ra≤0.8μm, reducing frictional resistance when the wire passes through and preventing damage to the wire surface that could affect the inspection results. A guide sleeve is installed at the entrance of each wire rope inspection hole 2. The guide sleeve is made of polytetrafluoroethylene (PTFE), with an inner diameter identical to that of the wire rope inspection hole 2 and a length of 20mm. This guide sleeve guides the wire accurately into the inspection hole and reduces friction. The clamping plate 10 in the clamping assembly 4 is made of 12mm thick Q235 steel plate, milled and drilled by a CNC machining center to ensure the positional accuracy of the mounting holes is within ±0.1mm. The shaft seat 9 and the clamping plate 10 are connected by welding using argon arc welding, with a weld height of not less than 6mm to ensure a firm and reliable connection. The shaft seat 9 is made of 45# steel, and after quenching and tempering, its hardness reaches HRC28-32. The inner diameter machining accuracy is H7 grade, and the clearance between it and the screw rod 8 is controlled between 0.01-0.03mm to ensure that the screw rod 8 rotates flexibly without significant wobble. Deep groove ball bearings, model 6004, are installed at both ends of the shaft seat 9. The bearings have an inner diameter of 20mm, an outer diameter of 42mm, and a thickness of 12mm, which can effectively reduce the frictional resistance when the screw rod 8 rotates and improve the service life of the clamping assembly 4. The two helical rods 8 have a diameter of 18mm, an effective thread length of 120mm, and a thread accuracy grade of 6g. They adopt a trapezoidal thread design with a tooth angle of 30°, which features high transmission efficiency and strong load-bearing capacity. The internal thread of the helical cylinder 7 is divided into left and right parts, which respectively mate with the two helical rods 8. The internal thread accuracy grade is 6H, and the mating clearance is controlled within 0.02-0.04mm. The outer surface of the helical cylinder 7 is machined with anti-slip texture, with a texture depth of 0.5mm and a spacing of 3mm, which facilitates manual rotation adjustment of the clamping force by the operator. A scale is set at the end of the helical cylinder 7. The scale is evenly divided into 100 divisions, with each division corresponding to a 0.1mm movement of the helical rod 8, which can intuitively display the movement distance of the clamping plate 10 and achieve precise control of the clamping force. To prevent the helical rod 8 from over-screwing, a limit stop is set on the outside of the shaft seat 9. The stop is fixed with bolts and its position can be adjusted according to actual needs to ensure that the helical rod 8 works within the safe stroke range. The four wire rope detection sensors 5 mounted on the side wall of the detection plate 3 are high-precision magnetic flux leakage sensors, model LM-200, with a detection sensitivity of up to 0.05mm², capable of detecting even the smallest broken wires and wear defects on the surface of the wire rope. The detection head 6 is made of high-permeability permalloy material, precision-machined into a hemispherical shape, with the contact area with the wire controlled at 0.5-1mm². The surface is hard chrome plated, achieving a hardness of HV800-1000, improving wear resistance. The detection head 6 is connected to the wire rope detection sensor 5 via a spring-loaded pin. The spring-loaded pin pressure is adjustable, ranging from 0.5-2N, ensuring a stable contact pressure between the detection head 6 and the wire, preventing damage to the wire due to excessive pressure or unstable detection signals due to insufficient pressure. The sensor signal transmission line uses double-shielded cable, with an inner shield of tin-plated copper mesh and an outer shield of aluminum foil, effectively shielding against external electromagnetic interference and ensuring accurate signal transmission.

[0018] In some technical solutions, the two helical rods 8 are the same size and have opposite thread directions, and the external threads of the two helical rods 8 are matched with the inner wall of the helical cylinder 7.

[0019] In some technical solutions, a fixing rod 11 is installed at the bottom end of the clamping plate 10, a stabilizing plate 12 is installed at the bottom end of the fixing rod 11, and an abutment plate 13 is installed on the side wall of the clamping plate 10 and the stabilizing plate 12.

[0020] The fixing rod 11 at the bottom of the clamping plate 10 is made of Q235 round steel with a diameter of 14mm and a length of 100mm. It is welded to both the clamping plate 10 and the stabilizing plate 12 using carbon dioxide gas shielded welding, resulting in a uniform and full weld. The stabilizing plate 12 is made of 10mm thick steel plate with the same dimensions as the clamping plate 10. Rubber shock-absorbing pads with a thickness of 10mm and a Shore hardness of 60A are installed at the four corners of the bottom of the stabilizing plate 12. These pads effectively absorb vibrations generated during the testing process, reducing the impact on the test results. The abutment plate 13 is made of 8mm thick Q235 steel plate and is connected to the clamping plate 10 and the stabilizing plate 12 using M8 bolts. Spring washers are added at the connection points to prevent the bolts from loosening. The surface of the abutment plate 13 is machined into an arc shape, with the curvature matching the outer wall curvature of the testing box 1 to ensure a tight fit.

[0021] In some technical solutions, a rubber plate 14 is installed on the side wall of the abutment plate 13, and the rubber plate 11 is fitted to the outer wall of the test box 1.

[0022] The rubber sheet 14 on the side wall of the abutment plate 13 is made of nitrile rubber, 6mm thick, with a surface roughness Ra≤3.2μm, providing good elasticity and anti-slip properties. The rubber sheet 14 is bonded to the abutment plate 13 with a special adhesive, specifically a high-strength neoprene rubber adhesive with a bonding strength of not less than 5MPa. A cross-shaped groove, 2mm deep and 2mm wide, is formed on the surface of the rubber sheet 14 to further increase friction with the outer wall of the testing chamber 1. Anti-slip particles, made of alumina with a particle size of 0.5-1mm, are also filled within the groove to enhance the anti-slip effect. The edges of the rubber sheet 14 are rounded with a radius of 3mm to prevent sharp edges from scratching the outer wall of the testing chamber 1.

[0023] In some technical solutions, the four wire rope detection holes 2 are arranged in a rectangular shape, and the positions of the wire rope detection holes 2 and the wire rope detection sensors 5 correspond one-to-one.

[0024] In some technical solutions, the clamping plate 10 and the stabilizing plate 11 are arranged parallel to each other vertically.

[0025] In some technical solutions, the internal thread of the spiral cylinder 7 is divided into left and right parts, which are matched with the external threads of the left and right spiral rods 8 respectively.

[0026] A calibration module is installed inside the testing device, containing a standard steel wire rope sample and a calibration sensor. The standard steel wire rope sample, with known specifications and defects, is fixedly installed at the calibration station. The calibration sensor is of the same model as the testing sensor, and its installation position corresponds to that of the testing sensor. Before each test, the standard steel wire rope sample is moved to the testing position via a mechanical transmission mechanism. The system automatically collects data from the calibration sensor and compares it with the standard data to calculate the deviation value. Based on the deviation value, the testing sensor is automatically calibrated. The calibration process requires no manual intervention, effectively improving the long-term testing accuracy and stability of the testing device. The mechanical transmission mechanism uses a stepper motor-driven lead screw and nut pair. The lead screw has a diameter of 12mm and a lead of 5mm. The stepper motor has a step distance of 1.8°, and high-precision positioning is achieved through microstepping drive technology, with a positioning accuracy of ±0.05mm. The top of the testing chamber 1 is equipped with a waterproof and dustproof cover made of transparent polycarbonate, 3mm thick, with a light transmittance of ≥89%, effectively preventing dust and water droplets from entering the chamber. A temperature and humidity sensor is installed inside the testing chamber 1 to monitor the internal environment's temperature and humidity in real time. When the temperature exceeds 40℃ or the humidity exceeds 85%RH, the system automatically activates the ventilation and dehumidification devices. The ventilation device uses an axial flow fan with an airflow of 150m³ / h and a speed of 1450r / min; the dehumidification device uses a semiconductor condensation dehumidification module with a dehumidification capacity of 500ml / 24h. An audible and visual alarm device is installed on the testing unit. When a wire rope defect exceeds a set threshold, the alarm device emits a flashing red light and a buzzer alarm, simultaneously transmitting the alarm signal to a remote monitoring system for timely handling by operators.

[0027] I. Work Process (a) Preparation stage First, place the wire rope testing device on a stable working surface. Adjust the four height-adjustable support feet at the bottom of the testing box 1 to ensure the device is level and accurate. Then, select the appropriate clamping assembly 4 (if a modular design is used) according to the specifications of the wire rope to be tested, and install the clamping assembly 4 onto the pre-machined threaded holes on both sides of the testing box 1 using M10 bolts. Tighten the bolts to ensure a secure connection.

[0028] (II) Installation and fixing of wire rope The steel wire rope to be tested is sequentially passed through the four steel wire rope detection holes 2 on the front side wall of the detection box 1. The PTFE guide sleeve at the entrance of the steel wire rope detection hole 2 guides the steel wire rope accurately into the hole, reducing friction. Next, the screw cylinder 7 is rotated. Since the two screw rods 8 are of the same size, have opposite thread directions, and cooperate with the screw cylinder 7, when the screw cylinder 7 rotates, the two screw rods 8 will move in opposite directions simultaneously, causing the clamping plate 10 to move towards the center, clamping and fixing the steel wire rope. The operator can visually understand the movement distance of the clamping plate 10 through the scale at the end of the screw cylinder 7, accurately control the clamping force, and ensure that the steel wire rope does not shake or shift during the testing process.

[0029] (III) Testing Phase Once the wire rope is secured, the four wire rope detection sensors 5 on the side wall of the detection plate 3 begin to operate. The detection head 6, under the action of a spring-loaded pin, maintains stable contact with the wire rope at an adjustable pressure of 0.5-2N. As the wire rope moves (which can be driven by an external traction device), the condition information of the wire rope surface is sensed by the detection head 6 and converted into an electrical signal, which is then transmitted to the wire rope detection sensors 5. The wire rope detection sensors 5 (such as the LM-200 magnetic leakage sensor) utilize the principle of magnetic leakage to detect defects such as broken wires and wear on the wire surface, transmitting the detected analog signal to the signal processing circuit integrated on the detection plate 3.

[0030] The low-noise operational amplifier in the signal processing circuit amplifies the signal, and the high-precision A / D converter converts the analog signal into a 16-bit digital signal. After filtering, the signal is transmitted to the external control system. During the testing process, if the temperature and humidity sensor inside the testing chamber 1 detects that the temperature exceeds 40°C or the humidity exceeds 85%RH, the system will automatically activate the ventilation and heat dissipation device (axial fan) and the dehumidification device (semiconductor condensation dehumidification module) to maintain a good working environment inside the testing device.

[0031] (iv) Calibration and Data Processing Before each formal test, the system automatically initiates the calibration function. A mechanical transmission mechanism (driven by a stepper motor and a lead screw and nut pair) moves a standard wire rope sample to the testing position. The calibration sensor collects data from the standard wire rope sample and compares it with pre-set standard data to calculate the deviation value. The control system automatically calibrates the detection sensor based on the deviation value to ensure the accuracy of the test data. The external control system receives the digital signals transmitted from the detection sensor, analyzes and processes the data, and determines whether the wire rope has defects, as well as the type, location, and severity of the defects.

[0032] (v) Results Output and Alarms Once the inspection is complete, the external control system outputs the results in a visual format, such as displaying an inspection report on a screen, including basic information about the wire rope, inspection items, and inspection results. If the detected wire rope defect exceeds a set threshold, the audible and visual alarm device on the inspection unit will emit a flashing red light and sound an alarm, while simultaneously transmitting the alarm signal to the remote monitoring system so that operators can take timely measures to address the issue.

[0033] II. Working Principle (I) Clamping Principle In the clamping assembly 4, the two helical rods 8 and the helical cylinder 7 are engaged using a helical drive principle. When the helical cylinder 7 rotates, due to the threaded engagement between the helical rods 8 and the helical cylinder 7, and the opposite rotation of the threads of the two helical rods 8, the helical rods 8 move in opposite directions under the drive of the helical cylinder 7, thereby driving the clamping plate 10 to clamp or release the wire rope. This structural design allows for precise control of the movement distance of the clamping plate 10 by rotating the helical cylinder 7, thus achieving stable clamping of wire ropes of different diameters.

[0034] (II) Detection Principle The wire rope detection sensor 5 employs the principle of magnetic leakage detection. When the wire rope has defects such as broken wires or wear, its internal magnetic lines of force will be distorted, generating a magnetic leakage field at the defect location. The detection head 6 uses a permalloy material with high magnetic permeability, which can sense these magnetic leakage fields and convert them into electrical signals. The strength of the electrical signal is related to the severity of the wire rope defect. By analyzing and processing the electrical signal, it is possible to determine whether the wire rope has defects and the specific nature of the defects. The signal processing circuit on the detection board 3 is responsible for amplifying, filtering, and performing analog-to-digital conversion on the weak electrical signal transmitted from the detection head 6, converting it into a digital signal that is easy for a computer to process.

[0035] (III) Automatic Calibration Principle The automatic calibration function is based on the principle of comparative calibration. By placing a standard wire rope sample (with known specifications and defects) at the detection position, data is collected using a calibration sensor of the same model as the detection sensor. The collected data is compared with pre-stored standard data to calculate the deviation value. The control system adjusts the parameters of the detection sensor according to the deviation value, compensating for any potential sensor errors, thereby achieving automatic calibration of the detection sensor and ensuring the accuracy and reliability of the detection results.

[0036] (iv) Protection and alarm principles In terms of protection, the waterproof and dustproof cover on top of the testing chamber 1 is made of transparent polycarbonate, which can effectively prevent dust and water droplets from entering the interior of the testing chamber 1, protecting the internal electronic components. An internal temperature and humidity sensor monitors the ambient temperature and humidity in real time. When the temperature and humidity exceed the set thresholds, the control system activates the ventilation, heat dissipation, and dehumidification devices to regulate the internal environment. The alarm function is triggered when the external control system analyzes the test data and determines that the wire rope defect exceeds the set threshold. This triggers an audible and visual alarm device, emitting flashing lights and a buzzer alarm signal. Simultaneously, the alarm signal is transmitted via network to a remote monitoring system so that relevant personnel can promptly understand the situation and take appropriate action.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A wire rope testing device, comprising a testing box (1), characterized in that, The two side walls of the detection box (1) are equipped with clamping components (4), and the rear side of the inside of the detection box (1) is equipped with a detection plate (3). The front side wall of the test box (1) is provided with four wire rope test holes (2), and a wire is inserted into the interior of each wire rope test hole (2). The clamping assembly (4) includes clamping plates (10) assembled on the left and right side walls of the detection box (1), and shaft seats (9) are vertically installed on the upper side walls of the left and right side clamping plates (10). Both of the two bearing seats (9) are equipped with a helical rod (8), and a helical cylinder (7) is assembled between the two helical rods (8). The helical rods (8) are screwed into the helical cylinder (7). The side wall of the detection plate (3) is equipped with four wire rope detection sensors (5), and the end of the wire rope detection sensor (5) is equipped with a detection head (6), which is in contact with the wire rope.

2. The wire rope testing device according to claim 1, characterized in that, The two spiral rods (8) are the same size and have opposite thread directions. The external threads of the two spiral rods (8) are matched with the inner wall of the spiral cylinder (7).

3. The wire rope testing device according to claim 1, characterized in that, A fixing rod (11) is installed at the bottom end of the clamping plate (10), a stabilizing plate (12) is installed at the bottom end of the fixing rod (11), and an abutment plate (13) is installed on the side wall of the clamping plate (10) and the stabilizing plate (12).

4. The wire rope testing device according to claim 3, characterized in that, A rubber plate (14) is installed on the side wall of the abutment plate (13), and the rubber plate (11) is fitted to the outer wall of the detection box (1).

5. The wire rope testing device according to claim 1, characterized in that, The four wire rope detection holes (2) are arranged in a rectangular shape, and the positions of the wire rope detection holes (2) and the wire rope detection sensors (5) correspond one-to-one.

6. The wire rope testing device according to claim 1, characterized in that, The clamping plate (10) and the stabilizing plate (11) are arranged parallel to each other vertically.

7. The wire rope testing device according to claim 1, characterized in that, The internal thread of the spiral cylinder (7) is divided into two parts, left and right, which are matched with the external threads of the left and right spiral rods (8) respectively.

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