A cable tensile property detection device

Abstract

The utility model discloses a kind of cable tensile property detection devices, it is related to cable detection technical field, the detection device includes: relatively interval setting on workbench and spacing adjustable for being used to the clamping and fixed winding of cable two ends Fixed mechanism, and fixedly arranged with fixed frame on workbench, the fixed frame is equipped with the detection piece of detecting cable;The fixed mechanism includes: two groups of moving frame relatively interval sliding on workbench, two groups of spacing adjustable fixed ring are equipped on the moving frame, the intersection of two groups of fixed ring forms clamping bayonet, and winding assembly for winding cable end is equipped on the side wall of moving frame.The device when using, overcome the clamping of two ends of cable in prior art, when the pulling force of cable is more and more big, cable may be clamped one end appear to fall off or loosen phenomenon, may cause influence to cable tensile test data, reduce the accuracy of test data problem.

Description

Technical Field

[0001] This utility model relates to the field of cable testing technology, specifically to a cable tensile performance testing device. Background Technology

[0002] Wires and cables are wire products used to transmit electrical energy, information, and realize the conversion of electromagnetic energy. In a broad sense, wires and cables are also simply referred to as cables; in a narrow sense, a cable refers specifically to an insulated cable. It can be defined as one or more insulated cores, and their respective possible sheaths, overall protective layers, and outer protective layers. Cables may also have additional uninsulated conductors. Wires and cables are frequently used outdoors, making performance testing of cables particularly important.

[0003] A search revealed that Chinese patent application CN221976599U discloses a testing device for the tensile strength of building cables. By incorporating a blocking clamp, the testing device can be secondary-clamped on the rear side of the clamping plate when clamping one end. Since the cable on the rear side of the clamping plate experiences almost no deformation, the cable is limited by the blocking clamp when pulled, preventing loosening of the clamping plate on the front side or even cable slippage, thus improving the safety of the testing device during operation.

[0004] However, the following technical problems still exist when implementing the above technical solutions: clamping both ends of the cable may cause the clamped end of the cable to fall off or loosen as the tension on the cable increases, which may affect the data of the cable tensile test and reduce the accuracy of the test data.

[0005] Therefore, the problem that this utility model urgently needs to solve is to provide a cable tensile performance testing device that can combine winding and fixing during use, fixing the cable end from both radial clamping and axial winding dimensions, and effectively preventing the cable from slipping or falling off during the testing process. Utility Model Content

[0006] To address the aforementioned technical problems, the purpose of this utility model is to overcome the issue that in existing technologies, clamping both ends of the cable can lead to the clamped end falling off or loosening as the tension on the cable increases. This can affect the data from cable tensile strength tests and reduce the accuracy of the test data. Therefore, this utility model provides a cable tensile strength testing device that combines winding and fixing during use, securing the cable end from both radial clamping and axial winding dimensions, effectively preventing the cable from slipping or falling off during testing.

[0007] To achieve the above objectives, this utility model provides a cable tensile performance testing device. The testing device includes: a fixing mechanism for clamping and winding the two ends of a cable, which is arranged at adjustable intervals on a worktable; a fixing frame is fixedly mounted on the worktable, and a testing component for testing the cable is mounted on the fixing frame. The fixing mechanism includes two sets of movable frames that are slidably disposed on the worktable at relative intervals. The movable frames are provided with two sets of fixed rings with adjustable spacing. The intersection of the two sets of fixed rings forms a clamping slot. The side wall of the movable frames is provided with a winding assembly for winding up the cable end.

[0008] Preferably, the fixing mechanism further includes: two sets of first sliding grooves opened on the side walls of the movable frame that are far apart from each other, wherein two sets of first sliders are slidably arranged in one set of first sliding grooves, and the movable frame is provided with an adjustment component for driving the first sliders to slide relative to or towards each other in the first sliding grooves.

[0009] Preferably, the adjustment component includes: a bidirectional screw rotatably disposed in another set of first sliding grooves, the bidirectional screw having two sections of threads with opposite directions, each section of thread having a threaded block corresponding to the first slider, the fixing ring being fixedly disposed between the first slider and the threaded block, and the moving frame being fixedly disposed with a servo motor having its output shaft vertically disposed and its top end fixedly connected to the bidirectional screw.

[0010] Preferably, the winding assembly includes: a winding shaft rotatably mounted on the side wall of the movable frame; a rotating plate fixedly mounted at one end of the winding shaft; a vertical guide groove formed in the rotating plate; a telescopic rod with an output shaft vertically mounted fixedly mounted in the guide groove; a mounting block slidably engaging with the inner side wall of the guide groove fixedly mounted at the bottom end of the telescopic rod; a fixing head fixedly mounted on the surface of the mounting block that abuts against the cable end; and a locking element on the movable frame for locking the rotation angle of the winding shaft.

[0011] Preferably, the locking element includes a ratchet fixedly sleeved on the take-up shaft, and the movable frame is provided with a pawl that cooperates with the ratchet.

[0012] Preferably, the circumferential surface of the winding shaft is provided with multiple sets of limiting grooves for restricting the cable, and the shape of the fixing head corresponds to the limiting grooves.

[0013] Preferably, the detection component includes: a hydraulic rod fixedly mounted on a fixed frame, the output end of the hydraulic rod being vertically downward and fixedly provided with a through block for cable to pass through, and a sensor electrically connected to the hydraulic rod being fixedly mounted on the fixed frame.

[0014] Preferably, the workbench is provided with a spacing adjustment mechanism for adjusting the spacing between the two sets of movable frames.

[0015] Preferably, the spacing adjustment mechanism includes: a second slide groove on the worktable, a second slider slidably disposed in the second slide groove, a movable frame fixedly disposed on the second slider, and a rotary motor fixedly disposed in the worktable, the output shaft of the rotary motor being vertically disposed and a rotating rod being fixedly disposed at its top end, and hinge rods being respectively hinged to both ends of the rotating rod, one end of the two sets of hinge rods being hinged to the bottom surface of the second slider.

[0016] According to the above technical solution, the cable tensile performance testing device provided by this utility model has the following advantages in use: the spacing between the two sets of moving frames is adjustable, which can adapt to cables of different lengths; the adjustable spacing of the fixing rings makes the clamping jaw size variable, which can match cables of different diameters, eliminating the need to configure a separate testing device for each specification of cable, thus improving the applicability of the equipment; the clamping jaw formed by the fixing rings is combined with the winding and fixing of the winding assembly, fixing the cable end from both radial clamping and axial winding dimensions, effectively preventing the cable from slipping or falling off during the testing process, and ensuring the stability of the applied tensile force and the accuracy of the test data.

[0017] Other features and advantages of this utility model will be described in detail in the following detailed description section; and all parts not covered in this utility model are the same as or can be implemented using existing technology. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 A three-dimensional structural diagram of a cable tensile performance testing device provided in a preferred embodiment. Figure 1 ; Figure 2 A three-dimensional structural diagram of a cable tensile performance testing device provided in a preferred embodiment. Figure 2 ; Figure 3 This is a three-dimensional structural schematic diagram of the adjustment component of the cable tensile performance testing device provided in a preferred embodiment; Figure 4 This is a partial three-dimensional structural diagram of the winding assembly of a cable tensile performance testing device provided in a preferred embodiment; Figure 5 This is a three-dimensional structural diagram of the winding assembly of a cable tensile performance testing device provided in a preferred embodiment.

[0019] Explanation of reference numerals in the attached figures 100. Workbench; 101. Fixing frame; 102. Hydraulic rod; 103. Through block; 104. Sensor; 200. Fixing mechanism; 201. Moving frame; 202. First slide groove; 203. First slider; 204. Fixing ring; 300. Adjusting assembly; 301. Bidirectional screw; 302. Threaded block; 303. Servo motor; 400. Rewinding assembly; 401. Rewinding shaft; 402. Rotating plate; 403. Telescopic rod; 404. Mounting block; 405. Ratchet; 406. Pawl; 407. Guide groove; 408. Limiting groove; 409. Fixing head; 500. Spacing adjustment mechanism; 501. Second slide groove; 502. Second slider; 503. Rotary motor; 504. Rotating rod; 505. Hinge rod. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0021] In this utility model, unless otherwise stated, directional words such as "upper," "lower," "inner," and "outer" included in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.

[0022] Reference Figures 1-5 As shown, a cable tensile performance testing device includes: a fixing mechanism 200 for clamping and winding the two ends of a cable, which is arranged at an adjustable interval on a workbench 100; a fixing frame 101 is fixedly mounted on the workbench 100, and a testing element for testing the cable is mounted on the fixing frame 101; wherein, The fixing mechanism 200 includes two sets of movable frames 201 that are slidably disposed on the workbench 100 at relative intervals. The movable frames 201 are provided with two sets of adjustable fixing rings 204. The intersection of the two sets of fixing rings 204 forms a clamping slot. The side wall of the movable frames 201 is provided with a winding assembly 400 for winding the cable end.

[0023] During use, the relative spacing of the two sets of moving frames 201 on the workbench 100 is adjusted according to the length of the cable to be tested, so that the spacing matches the cable length; at the same time, the spacing of the two sets of fixing rings 204 on each set of moving frames 201 is adjusted so that the size of the clamping jaw formed at the intersection matches the cable diameter, ensuring a stable clamping. The two ends of the cable are placed at the clamping jaws of the two sets of moving frames 201 respectively, and the cable ends are initially clamped by the fixing rings 204; then the winding assembly 400 is activated to wind up and fix the cable ends, further enhancing the connection strength between the cable and the fixing mechanism 200, and preventing the cable from slipping during the test. The detection element on the fixing frame 101 is activated, and by adjusting the spacing of the two sets of fixing mechanisms 200, axial tension is applied to the cable. The detection element monitors the tension and deformation data of the cable in real time.

[0024] Reference Figure 3 As shown, the fixing mechanism 200 further includes: two sets of first sliding grooves 202 opened on the side walls of the movable frame 201 that are far apart from each other, wherein two sets of first sliders 203 are slidably arranged in one set of first sliding grooves 202, and the movable frame 201 is provided with an adjustment component 300 for driving the first sliders 203 to slide relative to or towards each other in the first sliding grooves 202.

[0025] In the above scheme, when it is necessary to adapt to cables of different diameters, the adjustment component 300 is activated, driving the first slider 203 to slide in the first groove 202 on the side wall of the moving frame 201. The adjustment component 300 drives the two sets of first sliders 203 to slide relative to each other or towards each other in the same set of first grooves 202 through power output. Since the fixing ring 204 is associated with the first slider 203, the sliding of the first slider 203 directly changes the distance between the two sets of fixing rings 204. When the distance between the two sets of fixing rings 204 is adjusted to match the diameter of the cable to be tested, the adjustment component 300 stops working. At this time, the clamping jaw size formed at the intersection of the two sets of fixing rings 204 is stable, and the cable end can be accurately clamped.

[0026] Reference Figure 3 As shown, the adjustment assembly 300 includes: a bidirectional screw 301 rotatably disposed in another set of first slide grooves 202, the bidirectional screw 301 having two sections of threads with opposite directions, each section of thread having a threaded block 302 corresponding to the first slider 203, the fixing ring 204 being fixedly disposed between the first slider 203 and the threaded block 302, and the moving frame 201 being fixedly disposed with a servo motor 303 having its output shaft vertically arranged and its top end fixedly connected to the bidirectional screw 301.

[0027] In the above scheme, according to the diameter of the cable to be tested, the servo motor 303 on the moving frame 201 is started. The output shaft of the servo motor 303 drives the bidirectional screw 301 to rotate in another set of first slide grooves 202. The two sections of threads with opposite directions on the bidirectional screw 301 drive the two sets of threaded blocks 302 to slide relative to or towards each other. Since the fixed ring 204 is fixed between the first slider 203 and the threaded block 302, the sliding of the threaded block 302 drives the fixed ring 204 to move synchronously, thereby pulling the first slider 203 to slide in the corresponding first slide groove 202. Reference Figures 4-5 As shown, the winding assembly 400 includes: a winding shaft 401 rotatably mounted on the side wall of the movable frame 201; a rotating plate 402 fixedly mounted at one end of the winding shaft 401; a vertical guide groove 407 opened in the rotating plate 402; a telescopic rod 403 with an output shaft vertically mounted fixedly mounted in the guide groove 407; a mounting block 404 fixedly mounted at the bottom end of the telescopic rod 403 that slides in cooperation with the inner side wall of the guide groove 407; a fixing head 409 fixedly mounted on the surface of the mounting block 404 that abuts against the cable end; and a locking member on the movable frame 201 for locking the rotation angle of the winding shaft 401.

[0028] In the above scheme, after the two ends of the cable are initially fixed by the clamping slots of the fixing ring 204, the winding shaft 401 is rotated, so that the rotating plate 402 rotates synchronously with the winding shaft 401. The angle of the rotating plate 402 is adjusted so that the fixing head 409 is aligned with the cable end. The telescopic rod 403 is activated, and the output shaft of the telescopic rod 403 pushes the mounting block 404 to slide downward in the guide groove 407, which drives the fixing head 409 to approach and abut against the cable end, forming an initial clamping on the cable end. The winding shaft 401 is manually rotated, and the winding shaft 401 drives the rotating plate 402, the telescopic rod 403 and the fixing head 409 to rotate synchronously, winding the cable end around the winding shaft 401, further enhancing the connection strength between the cable and the fixing mechanism 200. After winding is completed, the rotation angle of the winding shaft 401 is locked by the locking device on the moving frame 201 to prevent the cable from loosening due to the rotation of the winding shaft 401 during the testing process.

[0029] Reference Figures 4-5 As shown, the locking component includes a ratchet 405 fixedly sleeved on the take-up shaft 401, and a pawl 406 on the moving frame 201 that cooperates with the ratchet 405.

[0030] In the above scheme, when the take-up shaft 401 is rotated to take up the cable end, the take-up shaft 401 drives the fixedly sleeved ratchet 405 to rotate synchronously. At this time, the pawl 406 on the moving frame 201 undergoes elastic deformation under the push of the teeth of the ratchet 405, allowing the ratchet 405 to rotate unidirectionally in the winding direction without hindering the winding operation. When the cable end is wound to the preset number of turns and fixed firmly, the take-up shaft 401 is stopped from rotating. The ratchet 405 stops rotating, and the pawl 406 is reset under its own elasticity (or reset mechanism), locking into the tooth groove of the ratchet 405, restricting the ratchet 405 from rotating in the opposite direction, thereby locking the rotation angle of the take-up shaft 401. After the test is completed, the pawl 406 is manually moved to disengage from the tooth groove of the ratchet 405, releasing the lock on the ratchet 405. At this time, the take-up shaft 401 can be rotated in the opposite direction to loosen the wound cable end and complete the cable disassembly.

[0031] Reference Figure 5 As shown, the circumferential surface of the winding shaft 401 is provided with multiple sets of limiting grooves 408 for limiting the cable, and the shape of the fixing head 409 corresponds to the limiting grooves 408.

[0032] In the above scheme, before winding the cable end, the cable end is placed in the limiting groove 408 on the circumferential surface of the winding shaft 401. The groove structure of the limiting groove 408 is used to initially limit the cable and prevent the cable from sliding along the axial direction of the winding shaft 401 during the winding process. The telescopic rod 403 is activated, which pushes the mounting block 404 to drive the fixing head 409 to move downward. Since the shape of the fixing head 409 corresponds to the limiting groove 408, the fixing head 409 is just embedded in the limiting groove 408 and clamps the cable together with the inner wall of the limiting groove 408.

[0033] Reference Figure 1 As shown, the detection component includes: a hydraulic rod 102 fixedly mounted on a mounting frame 101, the output end of the hydraulic rod 102 is vertically downward and fixedly provided with a through block 103 for cable to pass through, and a sensor 104 electrically connected to the hydraulic rod 102 is fixedly mounted on the mounting frame 101.

[0034] In the above scheme, after the two ends of the cable are fixed by the fixing mechanism 200, the cable is passed through the through block 103 at the output end of the hydraulic rod 102 on the fixing frame 101, ensuring that the through block 103 is located in the middle area of ​​the cable, in preparation for subsequent tension application and data detection. The hydraulic rod 102 is started, and the output end of the hydraulic rod 102 pushes the through block 103 vertically downward. The through block 103 applies vertical tension to the cable to simulate the actual stress scenario of the cable. During the operation of the hydraulic rod 102, the sensor 104 on the fixing frame 101 is electrically connected to the hydraulic rod 102 to collect the output tension data of the hydraulic rod 102 in real time.

[0035] Reference Figure 2As shown, the workbench 100 is provided with a spacing adjustment mechanism 500 for adjusting the spacing between two sets of movable frames 201. The spacing adjustment mechanism 500 includes: a second slide groove 501 opened on the workbench 100, a second slider 502 slidably disposed in the second slide groove 501, the movable frame 201 fixedly disposed on the second slider 502, and a rotary motor 503 fixedly disposed in the workbench 100. The output shaft of the rotary motor 503 is vertically disposed and a rotating rod 504 is fixedly disposed at its top end. The two ends of the rotating rod 504 are respectively hinged to hinge rods 505, and one end of the two sets of hinge rods 505 is hinged to the bottom surface of the second slider 502.

[0036] In the above scheme, based on the length of the cable to be tested, the rotary motor 503 inside the workbench 100 is started to prepare for adjusting the distance between the two sets of moving frames 201. At this time, the two sets of moving frames 201 are respectively fixed on the second slider 502. The second slider 502 is slidably disposed in the second slide groove 501 of the workbench 100. The output shaft of the rotary motor 503 drives the rotating rod 504 to rotate. The hinge rods 505, which are hinged at both ends of the rotating rod 504, move synchronously with the rotating rod 504. Since one end of the hinge rod 505 is hinged to the bottom surface of the second slider 502, the hinge rod 505 pushes the second slider 502 to slide relative to or towards each other in the second slide groove 501. The second slider 502 drives the moving frames 201 to slide synchronously. When the distance between the two sets of moving frames 201 is adjusted to match the cable length, the rotary motor 503 is turned off. The second slider 502 is fixed in position in the second slide groove 501, the distance between the moving frames 201 is stable, and the cable fixing operation can be performed.

[0037] In summary, the cable tensile performance testing device provided by this utility model, during use, starts the rotary motor 503 inside the workbench 100 according to the length of the cable to be tested; the output shaft of the rotary motor 503 drives the rotating rod 504 to rotate, and the hinge rods 505 at both ends of the rotating rod 504 synchronously push the second slider 502 to slide relative to or towards each other in the second slide groove 501; the second slider 502 drives the movable frame 201 fixed on it to move synchronously until the distance between the two sets of movable frames 201 matches the cable length, then the rotary motor 503 is turned off, and the test is complete. The spacing is locked, and the servo motor 303 on the moving frame 201 is started according to the cable diameter. The output shaft of the servo motor 303 drives the bidirectional screw 301 to rotate in the first slide groove 202. The threads with opposite directions on the bidirectional screw 301 drive the two sets of threaded blocks 302 to slide relative to or towards each other. The threaded blocks 302 drive the fixing ring 204 to move synchronously. The fixing ring 204 pulls the first slider 203 to slide in another set of first slide grooves 202 until the clamping jaw size formed by the intersection of the two sets of fixing rings 204 matches the cable diameter, and then the servo motor 303 is turned off. Place both ends of the cable into the clamping slots of the two sets of movable frames 201 respectively. The fixing ring 204 forms an initial radial clamp on the cable end to prevent lateral displacement of the cable. Place the cable end into the limiting groove 408 on the circumferential surface of the take-up shaft 401. Start the telescopic rod 403 on the rotating plate 402. The telescopic rod 403 pushes the mounting block 404 to slide downward in the guide groove 407, causing the fixing head 409 to embed into the limiting groove 408, clamping the cable end together with the groove wall. Manually rotate the take-up shaft 401. 401 drives the rotating plate 402, telescopic rod 403 and fixed head 409 to rotate synchronously, winding the cable end around the winding shaft 401 1-2 times; during the winding process, the ratchet 405 on the winding shaft 401 rotates with it, and the pawl 406 on the moving frame 201 elastically deforms, allowing the ratchet 405 to rotate in one direction. After winding is completed, the rotation of the winding shaft 401 stops; the pawl 406 resets under its own elasticity, engages with the tooth groove of the ratchet 405, locks the rotation angle of the winding shaft 401, and prevents the cable from loosening. The hydraulic rod 102 on the fixed frame 101 is activated, and the output end of the hydraulic rod 102 pushes the through block 103 vertically downward. The through block 103 applies axial tension to the cable to simulate the actual stress scenario of the cable. The magnitude of the tension can be precisely adjusted by the hydraulic rod 102. During the application of the tension, the sensor 104 on the fixed frame 101 is electrically connected to the hydraulic rod 102 to collect the output tension data of the hydraulic rod 102 in real time.

[0038] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0039] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0040] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A device for testing the tensile strength of cables, characterized in that, The testing device includes: a fixing mechanism (200) for clamping and winding the two ends of a cable, which is arranged at an adjustable distance on the workbench (100); and a fixing frame (101) is fixedly provided on the workbench (100), and the fixing frame (101) is provided with a testing component for testing the cable; wherein, The fixing mechanism (200) includes two sets of movable frames (201) that are slidably disposed on the workbench (100) at relative intervals. The movable frames (201) are provided with two sets of fixed rings (204) with adjustable spacing. The intersection of the two sets of fixed rings (204) forms a clamping slot. The side wall of the movable frames (201) is provided with a winding assembly (400) for winding the cable end.

2. The cable tensile performance testing device according to claim 1, characterized in that, The fixing mechanism (200) further includes: two sets of first slide grooves (202) opened on the side walls of the movable frame (201) that are far apart from each other, wherein two sets of first sliders (203) are slidably arranged in one set of first slide grooves (202), and the movable frame (201) is provided with an adjustment component (300) for driving the first sliders (203) to slide relative to or towards each other in the first slide grooves (202).

3. The cable tensile performance testing device according to claim 2, characterized in that, The adjustment assembly (300) includes: a bidirectional screw (301) rotatably disposed in another set of first slide grooves (202), the bidirectional screw (301) having two sections of threads with opposite directions, each section of thread having a threaded block (302) corresponding to the first slider (203) respectively, the fixing ring (204) being fixedly disposed between the first slider (203) and the threaded block (302), and the moving frame (201) being fixedly disposed with a servo motor (303) having its output shaft vertically disposed and its top end fixedly connected to the bidirectional screw (301).

4. The cable tensile performance testing device according to claim 1, characterized in that, The winding assembly (400) includes: a winding shaft (401) rotatably mounted on the side wall of the movable frame (201), a rotating plate (402) fixedly mounted at one end of the winding shaft (401), a vertical guide groove (407) opened in the rotating plate (402), a telescopic rod (403) with the output shaft vertically mounted fixedly mounted in the guide groove (407), a mounting block (404) fixedly mounted at the bottom end of the telescopic rod (403) and slidingly engaging with the inner side wall of the guide groove (407), a fixing head (409) fixedly mounted on the surface of the mounting block (404) and abutting against the cable end, and a locking member on the movable frame (201) for locking the rotation angle of the winding shaft (401).

5. The cable tensile performance testing device according to claim 4, characterized in that, The locking component includes a ratchet (405) fixedly sleeved on the take-up shaft (401), and a pawl (406) on the moving frame (201) that cooperates with the ratchet (405).

6. The cable tensile performance testing device according to claim 4, characterized in that, The circumferential surface of the take-up shaft (401) is provided with multiple sets of limiting grooves (408) for limiting the cable, and the shape of the fixing head (409) corresponds to the limiting grooves (408).

7. The cable tensile performance testing device according to claim 1, characterized in that, The detection component includes: a hydraulic rod (102) fixed on a mounting frame (101), the output end of the hydraulic rod (102) is vertically downward and fixedly provided with a through block (103) for cable to pass through, and a sensor (104) electrically connected to the hydraulic rod (102) is fixedly provided on the mounting frame (101).

8. The cable tensile performance testing device according to claim 1, characterized in that, The workbench (100) is provided with a spacing adjustment mechanism (500) for adjusting the spacing between the two sets of moving frames (201).

9. A cable tensile performance testing device according to claim 8, characterized in that, The spacing adjustment mechanism (500) includes: a second slide groove (501) opened on the workbench (100), a second slider (502) slidably disposed in the second slide groove (501), the moving frame (201) fixedly disposed on the second slider (502), and a rotary motor (503) fixedly disposed in the workbench (100). The output shaft of the rotary motor (503) is vertically disposed and a rotating rod (504) is fixedly disposed at the top end. The two ends of the rotating rod (504) are respectively hinged to hinge rods (505), and one end of the two sets of hinge rods (505) is hinged to the bottom surface of the second slider (502).

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