Cable detection device and detection method

Abstract

The invention discloses a cable detection device and a detection method, and relates to the technical field of cable production detection, a plurality of supporting columns are installed at the edge of the top end of a base in the circumferential direction at equal angles, a top seat is installed at the top ends of the supporting columns, a limiting seat is installed in the middle of the outer curved surface of each supporting column, and a threaded rod is rotatably installed on the inner side of each limiting seat; according to the invention, a cable drawing test and a torsion test can be combined in series, a fatigue test is equivalently realized, external pressure borne in a cable detection process is comprehensively converted, a single impact force is converted into multiple comprehensive acting forces, and the fatigue test efficiency is improved. And the impact point of the external force applied to the cable in the cable detection process is changed in a reciprocating manner, so that the complex stress state of the cable in the use process can be simulated more truly, the detection result is more practical, and the real effectiveness of the cable detection work is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable production detection, and in particular to a cable detection device and a detection method. Background Art

[0002] The sustained and rapid growth of China's economy has provided a huge market space for cable products. The strong appeal of the Chinese market has made the world focus on the Chinese market. The wire and cable industry is China's second largest industry after the automobile industry. The product variety satisfaction rate and domestic market share are both over 90%. Globally, China's total output value of wires and cables has exceeded that of the United States, making it the world's largest wire and cable producer. However, the expansion of market space has also led to uneven performance and quality of cables. In order to ensure the quality and safety of cables, relevant tests on cable performance are required; However, in the current cable testing process, a single impact force is usually applied to a fixed position of the cable, while the external force applied to the cable during actual use is usually the combined effect of multiple external forces, and the force points are not fixed. The existing testing devices are not only unable to simulate the complex stress conditions during cable use, but the cable pull-out test, torsion test and fatigue test are mostly separated and cannot be performed at the same time. The cable is easy to fall off during the testing process, resulting in low testing efficiency, and the test results deviate from reality and have no practical use. Summary of the invention

[0003] The present invention provides a cable detection device, which can effectively solve the problem raised in the above background technology that, during the current cable detection process, a single impact force is usually applied to a fixed position of the cable, while the external force applied to the cable during actual use is usually the combined effect of multiple external forces, and the force points are not fixed. Not only can the existing detection devices fail to simulate the complex stress conditions during the use of the cable, but the pull-out test, torsion test and fatigue test of the cable are mostly in a separated state and cannot be performed at the same time. The cable is easy to fall off during the detection process, resulting in low detection efficiency, and the detection results deviate from reality and have no practical utility.

[0004] To achieve the above object, the present invention provides the following technical solution: a cable detection device, comprising a base, a plurality of pillars are installed at equal angles along the circumferential direction on the top edge of the base, a top seat is installed on the top of the pillar, and a dynamic simulation structure is installed on the bottom of the top seat; The dynamic simulation structure includes a limit seat; A limit seat is installed in the middle of the outer curved surface of the pillar, a threaded rod is rotatably installed on the inner side of the limit seat, a mounting box is slidably installed on the outer side of the threaded rod, a threaded sleeve is installed on the inner curved surface of the mounting box, a plurality of hollow rods are rotatably installed on the outer curved surface of the mounting box at equal angles along the circumferential direction, a hollow rotating shaft is embedded and rotatably installed on the edge of the side end surface of the hollow rod, a piston is slidably installed inside the hollow rod, a support rod is installed in the middle of the side end surface of the piston, a connecting head is installed on the end of the support rod, a guide wheel is rotatably installed inside the connecting head, and an alignment scale is embedded and installed at the position of the guide wheel corresponding to the side end surface of the limit seat; A support rod is installed in the middle of the bottom end of the threaded rod, a tail stock is installed at the bottom end of the support rod, a connecting rod is installed in the middle of the top end of the threaded rod, a head seat is embedded and installed at the position of the connecting rod on the inner side of the top seat, a connecting box is embedded and installed in the middle of the top end of the head seat, and the connecting box is rotatably connected to the connecting rod, a number of slides are installed inside the head seat and the tail seat for sliding at equal angles in the circumferential direction, a sliding rod is installed in the middle of the side end surface of the sliding rod, a sliding seat is installed at the end of the sliding rod, a moving roller is rotatably installed inside the sliding seat, and a fixed roller is rotatably installed at the side end surfaces of the head seat and the tail seat at the position outside the moving roller; The connecting rod and the outer curved surface of the connecting box are both provided with openings at positions corresponding to the inner cavity of the first seat, through holes are provided inside the connecting rod, threaded rod and support rod, telescopic tubes are symmetrically installed on one side edge of the top of the installation box, and a guide groove is provided inside the first seat at the position corresponding to the telescopic tube.

[0005] Preferably, a wire inlet is provided on the side end surface of the top seat at the position corresponding to the fixed roller, the head seat and the tail seat are exactly the same in shape and size, the movable roller and the fixed roller are exactly the same in size, and the force area of ​​the slide plate is larger than the force area of ​​the piston.

[0006] Preferably, rolling wheels are rotatably installed in the middle of the end surfaces on both sides of the connecting head, and guide grooves are opened at the side end surfaces of the limit seat corresponding to the positions of the rolling wheels. The length of the guide groove is greater than the sum of the lengths of the hollow rod and the support rod, and the hollow rotating shaft is rotatably connected to the installation box.

[0007] Preferably, connecting grooves are provided at positions corresponding to the through holes inside the first seat and the tail seat, and limiting grooves are provided at positions corresponding to the slide plates inside the first seat and the tail seat, and the connecting groove inside the first seat is connected to the connecting groove inside the tail seat through the strip opening and the through hole, and the guide groove is connected to the connecting groove inside the first seat.

[0008] Preferably, a wind pressure driving mechanism is installed outside the dynamic simulation structure, and the wind pressure driving mechanism includes a rolling box; A rolling box is installed on the top of the connecting box, a center dividing plate is embedded in the middle of the rolling box, turbines are symmetrically installed at the two sides of the center dividing plate inside the rolling box, and the turbines are fixedly connected to the connecting rod, an air supply nozzle is installed at the position of the turbine on one side of the outer curved surface of the rolling box, a steering box is installed at the end of the air supply nozzle, a slider is slidably installed inside the steering box, a connecting port is opened at the side end surface of the slider corresponding to the position of the air supply nozzle, an air guide box is installed in the middle of the side end surface of the steering box, and an air pump is installed at the position of the air guide box on the top of the top seat; An air outlet pipe is installed at the position of the turbine corresponding to the other side of the outer curved surface of the rolling box, and the end of the air outlet pipe is connected with the inner cavity of the connecting box. The two ends of the outer curved surface of the threaded rod are rotatably installed with a receiving box, and a sliding plate is slidably installed inside the receiving box. A plurality of guide rods are installed at equal angles along the circumferential direction on the end surface of the sliding plate. A collar is installed on the end of the guide rod outside the threaded rod, and a connecting pipe is installed in the middle of the end surfaces on both sides of the steering box; A plurality of storage cavities are provided inside the base at equal angles along the circumferential direction, an adjusting plate is slidably installed inside the storage cavity, a screw is embedded and rotatably installed on the side end face of the storage cavity, and the screw is connected to the adjusting plate through a thread, a connecting pipe is installed in the middle of the top end of the storage cavity, a limit box is installed on the top end of the connecting pipe, a movable block is slidably installed inside the limit box, a rotating tube is rotatably installed in the middle of the top end of the limit box, an exhaust valve is installed on the top of the outer curved surface of the limit box, a pressure gauge is embedded and installed at the position of the exhaust valve at the top of the storage cavity, and a filter box is installed at the air inlet end of the air pump.

[0009] Preferably, the horizontal spacing between the connecting ports is equal to the width of the air supply nozzle, and the two connecting ports are centrally symmetrical about the center of the slider, the sliding distance of the slider is equal to the horizontal spacing between the two connecting ports, the air outlet end of the air pump is connected to the air guide box, and the air pump input end is electrically connected to the external power supply output end.

[0010] Preferably, the inner diameter of the collar is larger than the outer diameter of the threaded rod, the sum of the volume of the containing box and the volume of the slider is equal to the volume of the steering box, the containing box is filled with air, the collar is a permanent magnetic material, and the containing box is a ferromagnetic material.

[0011] Preferably, the storage cavity is filled with air, the thickness of the movable block is greater than the inner diameter of the exhaust valve, the inner cavity of the limit box is connected to the inner cavity of the tail seat through a rotating tube, and the force area of ​​the movable block is equal to the force area of ​​the piston.

[0012] Preferably, the accommodating box consists of an upper guide box and a lower guide box, and the upper guide box is located on the top of the lower guide box, the connecting pipe consists of a forward pipe and a reverse pipe, the turning box is connected to the upper guide box through the forward pipe, and the turning box is connected to the lower guide box through the reverse pipe, and the two turbines have opposite deflection directions.

[0013] Preferably, a cable detection method, according to a detection method of a cable detection device, comprises the following steps: S1. Installation and connection: connect the air pump outlet to the air guide box of the first device, connect the exhaust valve of the previous device to the air guide box of the next device through the external connecting pipe, and connect the selected devices in series in sequence; S2. Parameter adjustment: Turn the screw rod to adjust the air pressure at the bottom of the movable block according to the pressure indication number to limit the pressure at the bottom of the movable block. This pressure is the maximum impact pressure that the cable withstands during the detection process. S3, pressure correction: start the air pump, and after each movable roller contacts the corresponding fixed roller, control the air pump to sleep, correct the position of each movable roller, and give it an initial elastic support force; S4, position correction: rotate the threaded rod, wait for the threaded sleeve to abut against the collar, stop rotating the threaded rod, and correct the position of the guide wheel. At this time, the distance between the guide wheel and the threaded rod is the minimum distance; S5. Install the cable: pass the cable through the cable inlet, between the driven roller and the fixed roller, into the limit seat, around the outside of the guide wheel, and through the gap between the moving roller and the fixed roller on the tailstock; S6, Cable testing: Start the air pump to drive the guide wheel to move back and forth, and make the tailstock deflect back and forth, and perform synchronous torsion test, tension and compression test and fatigue test on the cable. During this process, the direct force point of the cable keeps moving back and forth; S7. Result verification: By aligning the scale indications on the ruler and comparing the relative scale positions of the connectors corresponding to the test cable and the standard cable, the test results can be accurately quantified and the performance of the cable can be quantitatively displayed.

[0014] Compared with the prior art, the invention has the following beneficial effects: the invention has a scientific and reasonable structure and is safe and convenient to use; 1. A dynamic simulation structure is set up. By matching the installation box, threaded sleeve, hollow rod, hollow shaft, piston, support rod and connector, an elastic pulling structure can be constructed. With the limiting and guiding function of the limit seat, rolling wheel and guide groove, the guide wheel can be driven to reciprocate and impact the cable to be tested, and the cable can be quickly tested for compressive strength, which effectively improves the convenience and stability of cable compressive strength testing. With the display function of the alignment scale, the cable can be tested for more intuitive comparative testing, and the test results of the cable compressive strength can be equivalently quantified, making the detection work simpler, clearer, more vivid and vivid, and greatly improving the accuracy and reliability of the detection work.

[0015] 2. The end support structure can be constructed by cooperating with the support rod, tailstock, connecting rod, connecting box and headstock. The sliding properties of the slide plate, slide rod and slide seat can give elastic support to the movable roller and the fixed roller. On the one hand, it can be equipped with the limiting effect of the guide wheel to perform synchronous torsion test on the cable, which not only improves the convenience of the torsion test, but also greatly improves the efficiency of cable detection, makes the cable detection work more stable and efficient, and improves the cable detection effect. On the other hand, the cable end can be dynamically limited and clamped, so that the clamping force changes synchronously with the impact force on the cable, which greatly improves the stability and reliability of the cable end limit work, improves the compatibility and stability of the end fixing work during the cable detection process, and equivalently reduces the failure rate of the cable detection process.

[0016] 3. Through the coordination of strips, through holes, telescopic tubes, guide grooves, connecting grooves and limit grooves, a medium diversion structure can be constructed, which can limit the flow of the driving medium and guide it. With the transmission conversion effect of the threaded rod, the cable pulling test and the torsion test can be combined in series to achieve fatigue test equivalently, so that the external pressure borne by the cable during the detection process can be comprehensively converted, and the single impact force can be transformed into multiple comprehensive forces. The external force impact point of the cable during the cable detection process can be reciprocated, which can more realistically simulate the complex stress state of the cable during use, make the detection result more in line with reality, and greatly improve the authenticity and effectiveness of cable detection work.

[0017] 4. A wind pressure drive mechanism is provided, which can provide stable airflow pressure through the air pump, and with the conversion effect of the rolling box, the center dividing plate, the turbine, the air supply nozzle, the steering box, the slider, the air outlet pipe, the connecting port and the air guide box, a driving force conversion structure can be constructed to convert the airflow pressure into the driving force. In addition, the limiting conversion effect of the containing box, the sliding plate, the guide rod, the sleeve and the connecting pipe can provide a stable reciprocating driving force for the dynamic simulation structure. On the one hand, it greatly improves the convenience and reliability of the driving force conversion supply, and can make the pulling test, the torsion test and the fatigue resistance test more stable and efficient. It converts the direct mechanical drive into the airflow drive, making the driving force more flexible and reliable, and improving the conversion efficiency of the driving force, so that the detection work can be carried out more continuously and stably. On the other hand, it can greatly improve the connection stability and compatibility between the driving force supply and the detection work, making the detection work smoother.

[0018] 5. Through the coordination of the limit box, movable block, rotating tube and exhaust valve, a current limiting and voltage stabilizing structure can be constructed, which can automatically perform negative feedback adjustment on the driving pressure and the detection pressure. With the adjustment function of the storage chamber, adjustment plate, screw and connecting tube, the pressure gauge can be used to accurately limit the detection pressure, which greatly improves the controllability of the detection work. The cable can be graded and multiple synchronously detected according to actual needs, which not only makes the detection process more accurate and reliable, but also makes the device suitable for cable detection work with more performance and quality, improves the flexibility and compatibility of the detection work, and expands the effective application range of the device. The driving medium can be filtered and purified through the filter box, which effectively improves the fluency of the detection work and reduces the failure rate.

[0019] To sum up, this cable detection device integrates pull-out detection, torsion detection and fatigue monitoring, and can perform triple comprehensive detection simultaneously, truly simulating the complex stress conditions of the cable during actual use, making the detection results more practical, more real and effective, and can quantify the test results equivalently, accurately limit the test pressure and driving pressure, and perform comparative and graded detection, which effectively improves the flexibility and efficiency of the detection work and equivalently improves the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0021] In the attached picture: Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the connecting rod installation structure of the present invention; Figure 3 It is a schematic diagram of the dynamic simulation structure of the present invention; Figure 4 It is a schematic diagram of the movable roller installation structure of the present invention; Figure 5 It is a schematic diagram of the guide wheel installation structure of the present invention; Figure 6 It is a schematic diagram of the structure of the wind pressure driving mechanism of the present invention; Figure 7 It is a schematic diagram of the installation structure of the limit box of the present invention; Figure 8 is a partial exploded view of the present invention; Fig. 9 is a flow chart of the steps of the cable detection method of the present invention; Numbers in the figure: 100, base; 101, support; 102, top seat; 103, cable inlet; 200, dynamic simulation structure; 201, limit seat; 202, threaded rod; 203, installation box; 204, threaded sleeve; 205, hollow rod; 206, hollow shaft; 207, piston; 208, support rod; 209, connector; 210, guide wheel; 211, alignment scale; 212, support rod; 213, tailstock; 214, connecting rod; 215, connecting box; 216, headstock; 217, slide plate; 218, slide rod; 219, slide seat; 220, moving roller; 221, fixed roller; 222, strip mouth; 223, through hole; 224, telescopic tube; 225, guide groove; 2091, rolling wheel; 2092, guide groove; 2161, connecting groove; 2162, limiting groove; 300, wind pressure drive mechanism; 301, rolling box; 302, center dividing plate; 303, turbine; 304, air supply nozzle; 305, steering box; 306, slider; 307, connecting port; 308, air guide box; 309, air pump; 310, air outlet pipe; 311, containing box; 312, sliding plate; 313, guide rod; 314, collar; 315, connecting pipe; 316, storage chamber; 317, adjusting plate; 318, screw rod; 319, connecting pipe; 320, limit box; 321, movable block; 322, rotating pipe; 323, exhaust valve; 324, pressure gauge; 325, filter box; 3111, upper guide box; 3112, lower guide box; 3151, forward pipe; 3152, reverse pipe. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] Example: Figure 1-8 As shown, the present invention provides a technical solution, a cable detection device, including a base 100, a plurality of pillars 101 are installed at equal angles along the circumferential direction on the top edge of the base 100, a top seat 102 is installed on the top of the pillar 101, and a dynamic simulation structure 200 is installed at the bottom of the top seat 102; The dynamic simulation structure 200 includes a limit seat 201, a threaded rod 202, a mounting box 203, a threaded sleeve 204, a hollow rod 205, a hollow rotating shaft 206, a piston 207, a support rod 208, a connector 209, a guide wheel 210, an alignment scale 211, a support rod 212, a tail seat 213, a connecting rod 214, a connecting box 215, a head seat 216, a slide plate 217, a slide bar 218, a slide seat 219, a movable roller 220, a fixed roller 221, a strip opening 222, a through hole 223, a telescopic tube 224 and a guide groove 225; A limit seat 201 is installed in the middle of the outer curved surface of the pillar 101, a threaded rod 202 is rotatably installed inside the limit seat 201, a mounting box 203 is slidably installed outside the threaded rod 202, a threaded sleeve 204 is installed on the inner curved surface of the mounting box 203, a plurality of hollow rods 205 are rotatably installed on the outer curved surface of the mounting box 203 at equal angles along the circumferential direction, a hollow shaft 206 is rotatably installed on the side end face edge of the hollow rod 205, a piston 207 is slidably installed inside the hollow rod 205, a support rod 208 is installed in the middle of the side end face of the piston 207, and the support rod 208 A connector 209 is installed at the end, and rolling wheels 2091 are rotatably installed in the middle of the end surfaces on both sides of the connector 209. A guide groove 2092 is opened at the position of the rolling wheel 2091 on the side end surface of the limit seat 201. The length of the guide groove 2092 is greater than the sum of the lengths of the hollow rod 205 and the support rod 208. The hollow shaft 206 is rotatably connected to the installation box 203 to improve the detection stability and accuracy. A guide wheel 210 is rotatably installed inside the connector 209, and a positioning scale 211 is embedded and installed at the position of the guide wheel 210 on the side end surface of the limit seat 201; A support rod 212 is installed in the middle of the bottom end of the threaded rod 202, a tail seat 213 is installed at the bottom end of the support rod 212, a connecting rod 214 is installed in the middle of the top end of the threaded rod 202, a head seat 216 is embedded and installed at the position corresponding to the connecting rod 214 on the inner side of the top seat 102, a connecting box 215 is embedded and installed in the middle of the top end of the head seat 216, and the connecting box 215 is rotatably connected to the connecting rod 214, a plurality of slide plates 217 are installed in the inside of the head seat 216 and the tail seat 213 along the circumferential direction at equal angles, a slide bar 218 is installed in the middle of the side end surface of the slide bar 217, and a slide seat 219 is installed at the end of the slide bar 218; A movable roller 220 is rotatably installed inside the slide 219, and a fixed roller 221 is rotatably installed at the side end surfaces of the head seat 216 and the tail seat 213 located outside the movable roller 220. A wire inlet 103 is provided at the side end surface of the top seat 102 corresponding to the fixed roller 221. The head seat 216 and the tail seat 213 have the same shape and size, and the movable roller 220 and the fixed roller 221 have the same size. The force-bearing area of ​​the slide plate 217 is larger than the force-bearing area of ​​the piston 207, so as to improve the convenience and stability of cable installation; A strip opening 222 is provided on the outer curved surface of the connecting rod 214 and the connecting box 215 at the position of the inner cavity of the first seat 216, a through hole 223 is provided inside the connecting rod 214, the threaded rod 202 and the support rod 212, a telescopic tube 224 is symmetrically installed on one side edge of the top of the installation box 203, a guide groove 225 is provided inside the first seat 216 at the position corresponding to the telescopic tube 224, a connecting groove 2161 is provided at the position corresponding to the through hole 223 of the first seat 216 and the tail seat 213, a limiting groove 2162 is provided inside the first seat 216 and the tail seat 213 at the position corresponding to the slide plate 217, and the connecting groove 2161 inside the first seat 216 is connected to the connecting groove 2161 inside the tail seat 213 through the strip opening 222 and the through hole 223, and the guide groove 225 is connected to the connecting groove 2161 inside the first seat 216, so as to improve the fluency of the detection work.

[0024] A wind pressure driving mechanism 300 is installed outside the dynamic simulation structure 200, and the wind pressure driving mechanism 300 includes a rolling box 301, a center dividing plate 302, a turbine 303, an air supply nozzle 304, a steering box 305, a slider 306, a connecting port 307, an air guide box 308, an air pump 309, an air outlet pipe 310, a containing box 311, a sliding plate 312, a guide rod 313, a collar 314, a connecting pipe 315, a storage chamber 316, an adjusting plate 317, a screw 318, a connecting pipe 319, a limit box 320, a movable block 321, a rotating pipe 322, an exhaust valve 323, a pressure gauge 324 and a filter box 325; A rolling box 301 is installed on the top of the connecting box 215, a center dividing plate 302 is embedded in the middle of the rolling box 301, turbines 303 are symmetrically installed at the positions on both sides of the center dividing plate 302 inside the rolling box 301, and the turbines 303 are fixedly connected to the connecting rod 214, an air supply nozzle 304 is installed at the position of the turbine 303 on one side of the outer curved surface of the rolling box 301, a steering box 305 is installed at the end of the air supply nozzle 304, a slider 306 is slidably installed inside the steering box 305, and a connecting port 307 is opened at the side end surface of the slider 306 at the position corresponding to the air supply nozzle 304; An air guide box 308 is installed in the middle of the side end surface of the steering box 305, and an air pump 309 is installed at the top of the top seat 102 corresponding to the position of the air guide box 308. The horizontal spacing between the connecting ports 307 is equal to the width of the air supply nozzle 304, and the two connecting ports 307 are centrally symmetrical about the center of the slider 306. The sliding distance of the slider 306 is equal to the horizontal spacing between the two connecting ports 307. The air outlet end of the air pump 309 is connected to the air guide box 308, and the input end of the air pump 309 is electrically connected to the output end of the external power supply to improve the stability of the driving force; An air outlet pipe 310 is installed at the position corresponding to the turbine 303 on the other side of the outer curved surface of the rolling box 301, and the end of the air outlet pipe 310 is connected to the inner cavity of the connecting box 215. The two ends of the outer curved surface of the threaded rod 202 are rotatably installed with a containing box 311. A sliding plate 312 is slidably installed inside the containing box 311. A plurality of guide rods 313 are installed at equal angles on the end surface of the sliding plate 312 along the circumferential direction. A collar 314 is installed at the end of the guide rod 313 on the outside of the threaded rod 202. The inner diameter of the collar 314 is larger than the outer diameter of the threaded rod 202. The sum of the volume of the containing box 311 and the volume of the slider 306 is equal to the volume of the steering box 305. The inside of the containing box 311 is filled with air. The collar 314 is a permanent magnetic material, and the containing box 311 is a ferromagnetic material, so as to limit and steer the driving force. A connecting pipe 315 is installed in the middle of both side end surfaces of the steering box 305. The accommodating box 311 is composed of an upper guide box 3111 and a lower guide box 3112, and the upper guide box 3111 is located on the top of the lower guide box 3112. The connecting pipe 315 is composed of a forward pipe 3151 and a reverse pipe 3152. The steering box 305 is connected to the upper guide box 3111 through the forward pipe 3151, and the steering box 305 is connected to the lower guide box 3112 through the reverse pipe 3152. The two turbines 303 are deflected in opposite directions to improve the smoothness of driving force conversion. A plurality of storage chambers 316 are provided at equal angles along the circumferential direction inside the base 100, an adjusting plate 317 is slidably installed inside the storage chamber 316, a screw 318 is rotatably installed embedded in the side end surface of the storage chamber 316, and the screw 318 is connected to the adjusting plate 317 through a thread, a connecting pipe 319 is installed in the middle of the top of the storage chamber 316, a limit box 320 is installed at the top of the connecting pipe 319, a movable block 321 is slidably installed inside the limit box 320, and a rotating pipe 322 is rotatably installed in the middle of the top of the limit box 320; An exhaust valve 323 is installed on the top of the outer curved surface of the limit box 320, and the storage chamber 316 is filled with air. The thickness of the movable block 321 is greater than the inner diameter of the exhaust valve 323. The inner cavity of the limit box 320 is connected to the inner cavity of the tail seat 213 through a rotating tube 322. The force area of ​​the movable block 321 is equal to the force area of ​​the piston 207 to limit the detection pressure. A pressure gauge 324 is embedded and installed at the position of the exhaust valve 323 at the top of the storage chamber 316, and a filter box 325 is installed at the air inlet end of the air pump 309.

[0025] like Fig. 9 As shown, a cable detection method comprises the following steps: S1. Installation and connection: connect the air outlet of the air pump 309 to the air guide box 308 of the first device, connect the exhaust valve 323 of the previous device to the air guide box 308 of the next device through an external connecting pipe, and connect the selected devices in series in sequence; S2. Parameter adjustment: Rotate the screw 318 to limit and adjust the air pressure at the bottom of the movable block 321 according to the indication of the pressure gauge 324, so as to limit the pressure at the bottom of the movable block 321, which is the maximum impact pressure borne during the cable detection process; S3, pressure correction: start the air pump 309, and after each movable roller 220 abuts against the corresponding fixed roller 221, control the air pump 309 to sleep, correct the position of each movable roller 220, and give it an initial elastic supporting force; S4, position correction: rotate the threaded rod 202, wait for the threaded sleeve 204 to abut against the collar 314, stop rotating the threaded rod 202, and correct the position of the guide wheel 210. At this time, the distance between the guide wheel 210 and the threaded rod 202 is the minimum distance; S5. Install the cable: pass the cable through the cable inlet 103, between the driven roller 220 and the fixed roller 221, into the limit seat 201, around the outside of the guide wheel 210, and through the gap between the moving roller 220 and the fixed roller 221 on the tail seat 213; S6, cable testing: start the air pump 309, drive the guide wheel 210 to move back and forth, and make the tailstock 213 reciprocate and deflect, and perform synchronous torsion test, tension and compression test and fatigue test on the cable. In this process, the direct force point of the cable changes back and forth continuously; S7. Result determination: By aligning the scale indications on the scale ruler 211 and comparing the relative scale positions of the connector 209 corresponding to the test cable and the standard cable, the test result can be accurately quantified and the performance of the cable can be quantitatively displayed.

[0026] The working principle and use process of the present invention: in actual use, firstly, according to actual needs, select a corresponding number of the cable detection devices, and stably place the base 100 on the ground or workbench in the working area, connect the air outlet of the air pump 309 to the air guide box 308 of the first device, and connect the exhaust valve 323 of the previous device to the air guide box 308 of the next device through an external connecting pipe, connect the selected devices in series in sequence, and drive several devices to run synchronously through one air pump 309; Then, the screw rod 318 is rotated to drive the adjustment plate 317 to move, and the air inside the storage chamber 316 is pressed into the limit box 320 through the connecting pipe 319 or the air inside the limit box 320 is extracted through the connecting pipe 319. The air pressure at the bottom of the movable block 321 is limited and adjusted according to the reading of the pressure gauge 324 to accurately limit the pressure on the bottom of the movable block 321. The pressure is the maximum impact pressure during the cable detection process. The air pressure on each device can be limited in turn according to actual needs, and the pressure on the bottom of the movable block 321 of each device can be made the same or different according to the detection requirements, so as to realize graded detection or synchronous detection of cables of the same specification, and synchronous detection of cables of different specifications can also be realized, thereby improving the flexibility and efficiency of the device. Then the air pump 309 is started, and the external air is sent into the air guide box 308 after being filtered by the filter box 325, and passes through the connecting port 307 and the air supply nozzle 304 to enter the rolling box 301, and then enters the connecting box 215 through the air outlet pipe 310, and then synchronously enters the through hole 223 and the connecting groove 2161 inside the first seat 216 through the strip mouth 222. The airflow entering the through hole 223 will then enter the connecting groove 2161 inside the tail seat 213, and then the airflow entering the connecting groove 2161 inside the first seat 216 and the tail seat 213 will press the slide plate 217 to make it slide along the limiting groove 2162 and drag the slide seat 219 to slide synchronously through the slide bar 218. After each movable roller 220 abuts against the corresponding fixed roller 221, the air pump 309 is controlled to sleep, the position of each movable roller 220 is corrected, and an initial elastic supporting force is given to it. Then, the threaded rod 202 is rotated in sequence to drive the threaded sleeve 204 to move, so that the installation box 203 drags the steering box 305 to move. Under the limiting action of the rolling wheel 2091 and the guide groove 2092, the support rod 208 will slide relative to the steering box 305, and the connector 209 will deflect synchronously while sliding along the limiting seat 201. After the threaded sleeve 204 abuts against the collar 314 and the collar 314 is pressed and adsorbed against the upper guide box 3111, the threaded rod 202 is stopped and the position of the guide wheel 210 is corrected. At this time, the distance between the guide wheel 210 and the threaded rod 202 is the minimum distance. Then, a standard cable is passed through the cable inlet 103, and the corresponding movable roller 220 is pressed to make the standard cable pass through the gap between the corresponding movable roller 220 and the fixed roller 221, and then the standard cable is passed through the limit seat 201, bypassed from the outside of the corresponding guide wheel 210, and then the standard cable is passed through the gap between the movable roller 220 and the fixed roller 221 on the corresponding tail seat 213. In this way, the traction connection work of the standard cable and the cable to be detected is carried out, and one standard cable and three cables to be detected are installed on each device. The number of cables to be detected can be flexibly adjusted according to actual needs, but the upper limit of the number of cables to be installed on each device is three; After the cable traction installation work is completed, the cable inspection work can be carried out, and the air pump 309 is started. The filtered air is sent into the steering box 305. At this time, the air inside the upper guide box 3111 is pressed into the steering box 305 by the sliding plate 312 through the forward pipe 3151, forcing the slider 306 to slide to the side of the reverse pipe 3152. At this time, the connection port 307 on the bottom side is in a conducting state, and the air flow enters the air supply nozzle 304 on the bottom side through this connection port 307, and then enters the rolling box 301, so that the air pressure in the space between the turbine 303 at the bottom of the middle dividing plate 302 and the rolling box 301 increases, forcing the turbine 303 at the bottom of the middle dividing plate 302 to drive the threaded rod 202 to rotate counterclockwise through the connecting rod 214; Then the airflow will enter the connection box 215 through the air outlet pipe 310, and simultaneously enter the through hole 223 and the connecting groove 2161 inside the first seat 216 through the strip mouth 222. The airflow entering the connecting groove 2161 inside the first seat 216 will then enter the telescopic tube 224 through the guide groove 225, and then enter the installation box 203, enter the inner cavity of the hollow rod 205 through the hollow rotating shaft 206, and the airflow entering the through hole 223 will enter the connecting groove 2161 inside the tail seat 213, and then enter the limit box 320 through the rotating tube 322. When its air pressure is sufficient to overcome the air pressure on the bottom of the movable block 321, it will push the movable block 321 down, and finally be discharged through the exhaust valve 323. When there is a rear-mounted series device, it will enter the air guide box 308 of the latter device and circulate according to the aforementioned path. When there is no rear-mounted device, it will be directly discharged into the atmosphere, thereby forming a complete airflow flow path. In the above process, as the threaded rod 202 rotates, the threaded sleeve 204 will drive the installation box 203 to descend synchronously, and the hollow rod 205 and the support rod 208 will deflect synchronously. At the same time, the piston 207 will push the connector 209 through the support rod 208 under the action of the airflow pressure inside the hollow rod 205, so that the guide wheel 210 presses against the corresponding cable. Under the linkage action of the support rod 212, the tailstock 213 will drive each corresponding movable roller 220 and fixed roller 221 to deflect synchronously with the threaded rod 202, and then it will force each cable to twist synchronously in this process. With the displacement of the guide wheel 210, the pressure point of the guide wheel 210 on each cable can be changed synchronously. As the installation box 203 descends, when it descends to the bottom, the threaded sleeve 204 presses the collar 314 on the lower guide box 3112, forcing the guide rod 313 to push the corresponding sliding plate 312 to slide inside the lower guide box 3112, and presses the air inside the lower guide box 3112 into the steering box 305 through the reverse pipe 3152, forcing the slider 306 to slide to the side of the forward pipe 3151, and the air inside the steering box 305 is pressed into the upper guide box 3111 by the slider 306 through the forward pipe 3151, so that the collar 314 on the upper guide box 3111 is reset; At this time, the connection port 307 on the top side is connected, and the airflow enters the air supply nozzle 304 on the top side through the connection port 307, and then enters the rolling box 301, so that the air pressure in the space between the turbine 303 on the top of the middle dividing plate 302 and the rolling box 301 rises, forcing the turbine 303 at the bottom of the middle dividing plate 302 to drive the threaded rod 202 to rotate clockwise through the connecting rod 214, and then under the driving action of the air pump 309, the guide wheel 210 is driven to move back and forth, and the tailstock 213 is reciprocated to deflect, so that the cable is subjected to synchronous torsion test, tension and compression test and fatigue test. In this process, the direct stress point of the cable changes back and forth continuously, which can effectively restore the dynamic stress process of the cable during use and improve the detection effect; It should be added here that in the above process, the force area of ​​the piston 207 is the same as the force area of ​​the movable block 321, so it can be seen that the pressure on the top of the movable block 321 is the same as that of the piston 207. When the pressure on the top of the movable block 321 is greater than the pressure on the bottom, the movable block 321 will drop under the pressure. At this time, the airflow will be discharged through the exhaust valve 323, so that the pressure on the piston 207 is maintained at the set value, and further the impact pressure on the cable during the detection process is maintained at the set value. Since the force area of ​​the piston 207 is smaller than the slide plate 217, it can be seen that the extrusion force given to the cable by the movable roller 220 and the fixed roller 221 is greater than the extrusion force given to the cable by the guide wheel 210, which can ensure the stability of the cable during the detection process and prevent its dislocation and displacement; As the testing process proceeds, the test results can be accurately quantified by comparing the relative scale positions of the connectors 209 corresponding to the test cable and the standard cable through the scale indications on the alignment scale 211. That is, during the testing process, if the test cable does not meet the standards, it will deform and elongate due to the pressure shock and fatigue effects during the testing process. At this time, under the same pressure, the relative scale position corresponding to the corresponding connector 209 will change accordingly. That is, by observing the relative scale position, the test result, that is, the performance of the cable, can be quantified.

[0027] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cable detection device, comprising a base (100), characterized in that: A plurality of pillars (101) are installed at equal angles along the circumferential direction on the top edge of the base (100); a top seat (102) is installed on the top of the pillar (101); and a dynamic simulation structure (200) is installed on the bottom of the top seat (102); The dynamic simulation structure (200) comprises a limiting seat (201); A limit seat (201) is installed in the middle of the outer curved surface of the pillar (101), a threaded rod (202) is rotatably installed on the inner side of the limit seat (201), a mounting box (203) is slidably installed on the outer side of the threaded rod (202), a threaded sleeve (204) is installed on the inner curved surface of the mounting box (203), and a plurality of hollow rods (205) are rotatably installed on the outer curved surface of the mounting box (203) at equal angles along the circumferential direction, and the side end surfaces of the hollow rods (205) are embedded with A hollow rotating shaft (206) is rotatably mounted in the hollow rod (205), a piston (207) is slidably mounted inside the hollow rod (205), a support rod (208) is mounted in the middle of the side end surface of the piston (207), a connector (209) is mounted at the end of the support rod (208), a guide wheel (210) is rotatably mounted inside the connector (209), and an alignment scale (211) is embedded and mounted at a position of the side end surface of the limit seat (201) corresponding to the guide wheel (210); A support rod (212) is installed at the middle of the bottom end of the threaded rod (202), a tail seat (213) is installed at the bottom end of the support rod (212), a connecting rod (214) is installed at the middle of the top end of the threaded rod (202), a head seat (216) is embedded and installed at a position corresponding to the connecting rod (214) on the inner side of the top seat (102), a connecting box (215) is embedded and installed at the middle of the top end of the head seat (216), and the connecting box (215) is rotatably connected to the connecting rod (214). A plurality of slide plates (217) are slidably mounted at equal angles along the circumferential direction inside the head seat (216) and the tail seat (213); a slide bar (218) is mounted in the middle of the side end surface of the slide plate (217); a slide seat (219) is mounted at the end of the slide bar (218); a movable roller (220) is rotatably mounted inside the slide seat (219); and a fixed roller (221) is rotatably mounted at the outer side of the movable roller (220) on the side end surfaces of the head seat (216) and the tail seat (213); The outer curved surfaces of the connecting rod (214) and the connecting box (215) are provided with openings (222) at positions corresponding to the inner cavity of the first seat (216); through holes (223) are provided inside the connecting rod (214), the threaded rod (202) and the support rod (212); telescopic tubes (224) are symmetrically installed on one side of the top end of the installation box (203); and a guide groove (225) is provided inside the first seat (216) at a position corresponding to the telescopic tube (224).

2. A cable detection device according to claim 1, characterized in that: A wire inlet (103) is provided on the side end surface of the top seat (102) at a position corresponding to the fixed roller (221); the head seat (216) and the tail seat (213) are completely identical in shape and size; the movable roller (220) and the fixed roller (221) are completely identical in size; and the force bearing area of ​​the slide plate (217) is larger than the force bearing area of ​​the piston (207).

3. A cable detection device according to claim 1, characterized in that: Rolling wheels (2091) are rotatably mounted in the middle of both side end surfaces of the connecting head (209), and guide grooves (2092) are provided on the side end surfaces of the limiting seat (201) at positions corresponding to the rolling wheels (2091), the length of the guide grooves (2092) being greater than the sum of the lengths of the hollow rod (205) and the support rod (208), and the hollow rotating shaft (206) is rotatably connected to the installation box (203).

4. A cable detection device according to claim 1, characterized in that: A connecting groove (2161) is provided at a position corresponding to the through hole (223) inside the head seat (216) and the tail seat (213); a limiting groove (2162) is provided at a position corresponding to the slide plate (217) inside the head seat (216) and the tail seat (213); the connecting groove (2161) inside the head seat (216) is connected to the connecting groove (2161) inside the tail seat (213) through the strip opening (222) and the through hole (223); and the guide groove (225) is connected to the connecting groove (2161) inside the head seat (216).

5. A cable detection device according to claim 1, characterized in that: A wind pressure driving mechanism (300) is installed outside the dynamic simulation structure (200), and the wind pressure driving mechanism (300) comprises a rolling box (301); A rolling box (301) is installed at the top of the connection box (215), a center dividing plate (302) is embedded in the middle of the rolling box (301), turbines (303) are symmetrically rotatably installed at positions on both sides of the center dividing plate (302) inside the rolling box (301), and the turbines (303) are fixedly connected to the connecting rod (214), an air supply nozzle (304) is installed at a position corresponding to the turbine (303) on one side of the outer curved surface of the rolling box (301), a steering box (305) is installed at the end of the air supply nozzle (304), a slider (306) is slidably installed inside the steering box (305), a connection port (307) is provided on the side end surface of the slider (306) at a position corresponding to the air supply nozzle (304), an air guide box (308) is installed in the middle of the side end surface of the steering box (305), and an air pump (309) is installed at a position corresponding to the air guide box (308) on the top of the top seat (102); An air outlet pipe (310) is installed at the position corresponding to the turbine (303) on the other side of the outer curved surface of the rolling box (301), and the end of the air outlet pipe (310) is connected to the inner cavity of the connecting box (215). Both ends of the outer curved surface of the threaded rod (202) are rotatably installed with a receiving box (311), a sliding plate (312) is slidably installed inside the receiving box (311), and a plurality of guide rods (313) are installed at equal angles on the end surface of the sliding plate (312) along the circumferential direction. The ends of the guide rods (313) are located outside the threaded rod (202) and are installed with a collar (314). The middle of the end surfaces on both sides of the steering box (305) are installed with a connecting pipe (315); A plurality of storage chambers (316) are provided at equal angles along the circumferential direction inside the base (100); an adjustment plate (317) is slidably mounted inside the storage chamber (316); a screw rod (318) is embedded and rotatably mounted on the side end surface of the storage chamber (316); the screw rod (318) is connected to the adjustment plate (317) via a thread; a connecting pipe (319) is mounted in the middle of the top end of the storage chamber (316); a limit box (320) is mounted on the top end of the connecting pipe (319); a movable block (321) is slidably mounted inside the limit box (320); a rotating tube (322) is rotatably mounted in the middle of the top end of the limit box (320); an exhaust valve (323) is mounted on the top of the outer curved surface of the limit box (320); a pressure gauge (324) is embedded and mounted at the position of the exhaust valve (323) at the top end of the storage chamber (316); and a filter box (325) is mounted on the air inlet end of the air pump (309).

6. A cable detection device according to claim 5, characterized in that: The horizontal spacing between the connection ports (307) is equal to the width of the air supply nozzle (304), and the two connection ports (307) are centrally symmetrical about the center of the slider (306). The sliding distance of the slider (306) is equal to the horizontal spacing between the two connection ports (307). The air outlet end of the air pump (309) is connected to the air guide box (308), and the input end of the air pump (309) is electrically connected to the output end of an external power supply.

7. A cable detection device according to claim 5, characterized in that: The inner diameter of the collar (314) is greater than the outer diameter of the threaded rod (202); the sum of the volume of the containing box (311) and the volume of the slider (306) is equal to the volume of the steering box (305); the inside of the containing box (311) is filled with air; the collar (314) is made of permanent magnetic material; and the containing box (311) is made of ferromagnetic material.

8. A cable detection device according to claim 5, characterized in that: The storage cavity (316) is filled with air, the thickness of the movable block (321) is greater than the inner diameter of the exhaust valve (323), the inner cavity of the limit box (320) is connected to the inner cavity of the tail seat (213) via the rotating tube (322), and the force bearing area of ​​the movable block (321) is equal to the force bearing area of ​​the piston (207).

9. A cable detection device according to claim 5, characterized in that: The accommodating box (311) is composed of an upper guide box (3111) and a lower guide box (3112), and the upper guide box (3111) is located on the top of the lower guide box (3112). The connecting pipe (315) is composed of a forward pipe (3151) and a reverse pipe (3152). The steering box (305) is connected to the upper guide box (3111) via the forward pipe (3151), and the steering box (305) is connected to the lower guide box (3112) via the reverse pipe (3152). The two turbines (303) have opposite deflection directions.

10. A cable detection method, according to claim 9, characterized in that: The steps include: S1. Installation and connection: connect the air outlet of the air pump (309) to the air guide box (308) of the first device, connect the exhaust valve (323) of the previous device to the air guide box (308) of the next device through an external connecting pipe, and connect the selected devices in series in sequence; S2, parameter adjustment: rotating the screw rod (318), and adjusting the air pressure at the bottom of the movable block (321) according to the indication of the pressure gauge (324), so as to limit the pressure at the bottom of the movable block (321), which is the maximum impact pressure borne during the cable detection process; S3, pressure correction: start the air pump (309), and after each movable roller (220) abuts against the corresponding fixed roller (221), control the air pump (309) to sleep, correct the position of each movable roller (220), and give it an initial elastic supporting force; S4, position correction: rotating the threaded rod (202), waiting for the threaded sleeve (204) to abut against the collar (314), stopping the rotation of the threaded rod (202), and correcting the position of the guide wheel (210), at which time the distance between the guide wheel (210) and the threaded rod (202) is the minimum distance; S5. Install the cable: pass the cable through the cable inlet (103), between the driven roller (220) and the fixed roller (221), into the limit seat (201), around the outside of the guide wheel (210), and through the gap between the driven roller (220) and the fixed roller (221) on the tail seat (213); S6, cable testing: start the air pump (309), drive the guide wheel (210) to move back and forth, and make the tailstock (213) reciprocate and deflect, and perform synchronous torsion test, tension and compression test and fatigue test on the cable. During this process, the direct force point of the cable changes back and forth continuously; S7. Result determination: By comparing the scale indications on the alignment ruler (211) with the relative scale positions of the connectors (209) corresponding to the test cable and the standard cable, the test result can be accurately quantified and the performance of the cable can be quantitatively displayed.

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