A cable strength detection device

Abstract

The utility model relates to cable detection technical field, concretely relates to a kind of cable strength detection device, comprising: detection table, pay-off mechanism to cable pay-off, tensile mechanism to cable tensile detection;The tensile mechanism includes: fixed mounting on the mounting bracket of detection table, fixed mounting on the slide bar of mounting bracket, slidingly installed on the slide block of slide bar, slidingly installed on the claw of slide block, the driving assembly of driving slide block along slide bar movement, and the fixed component of driving claw clamping fixation to cable with slide block movement.This kind of cable strength detection device of the utility model realizes the effective detection to the performance of different section of bunched cable by setting tensile mechanism.

Description

Technical Field

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

[0002] As the "blood vessels" of power transmission and information communication, the mechanical strength of cables directly determines the reliability and safety of system operation. In complex laying environments (such as high-altitude installations and underground conduits) and during long-term operation, cables must withstand comprehensive stresses such as tension, bending, and vibration. Insufficient tensile strength or poor insulation toughness can easily lead to conductor breakage, insulation damage, and even fires or power outages. Therefore, quantitatively evaluating the mechanical properties of cables through tensile and bending tests not only ensures their compliance with international standards (such as IEC and GB) strength requirements but also allows for the early identification of material defects or manufacturing problems, providing crucial assurance for the stable operation of power, communication, and rail transportation sectors.

[0003] Patent application CN202420066779.6 discloses a cable strength testing device, which facilitates the installation of cables and connectors and improves testing efficiency. The device includes a base, a tensile tester at the top of the base, a clamp on the tensile tester, an anti-slip block on one side of the clamp, a lead screw on the other side of the clamp, a clamping block at the end of the lead screw near the anti-slip block, and a screwing block at the end of the lead screw away from the anti-slip block. A connecting shaft is located at the bottom of the tensile tester, and an installation cylinder is located at the front of the connecting shaft. The installation cylinder has several slots of different sizes. A cable is installed between the clamping block and the anti-slip block, with a connector at the bottom of the cable. The bottom of the cable is installed inside a matching slot. A screw hole is located on one side of the clamp, and the lead screw is installed inside the screw hole. The lead screw and the clamp are connected by threads. Anti-slip textures are provided on the end faces of the anti-slip block and the clamping block that are close to each other. The connecting shaft and the installation cylinder are rotatably connected.

[0004] However, the testing method described in this patent has certain limitations in practice: before conducting cable testing, a section of cable needs to be manually cut as a test sample. Given current post-production cable storage practices, cables are typically stored in bundles. If the patented method is to cut the cable into sections to obtain test samples, an additional series of procedures are required, including unbundling, positioning, and cutting the bundled cable. This significantly increases the complexity and difficulty of the testing work.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this invention is to provide a cable strength testing device that can effectively solve the above-mentioned technical problems.

[0007] To achieve the purpose of this utility model, the following technical solution is adopted:

[0008] A cable strength testing device includes: a testing table, an unwinding mechanism for unwinding the cable, and a tensile mechanism for tensile testing of the cable.

[0009] The tensioning mechanism includes: a mounting bracket fixedly installed on the testing table, a slide rod fixedly installed on the mounting bracket, a slider slidably installed on the slide rod, a chuck slidably installed on the slider, a driving component for driving the slider to move along the slide rod, and a fixing component for driving the chuck to clamp and fix the cable as the slider moves.

[0010] Furthermore, the drive assembly includes: a support frame fixedly mounted on the testing platform, a cylinder fixedly mounted on the support frame, a mounting plate fixedly mounted on the piston rod of the cylinder, a hinge rod hinged to the mounting plate, and the other end of the hinge rod hinged to the slider.

[0011] Furthermore, the fixing component includes: a guide plate fixedly installed on the testing table; the claw having a clamping end for holding the cable and an abutting end for contacting the guide plate; the abutting end abutting against the guide plate; and a return spring provided between the claw and the slider.

[0012] Furthermore, the guide plate is an inclined plate that gradually increases in height from the stretching direction.

[0013] Furthermore, the testing platform is also equipped with a lifting component;

[0014] The lifting assembly includes: a sleeve fixedly installed on the testing platform, a top rod slidably installed inside the sleeve, and a connecting rod hinged to the top rod; the other end of the connecting rod is hinged to the slider.

[0015] Furthermore, the top rod is equipped with rollers.

[0016] Furthermore, the unwinding mechanism includes: an unwinding table rotatably mounted on the detection table, and a motor that drives the unwinding table to rotate.

[0017] Compared with the prior art, the present invention has the following advantages: The cable strength testing device of the present invention can effectively test the performance of different sections of bundled cables by setting a tensioning mechanism. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0019] Figure 1This is a schematic diagram of the structure of a cable strength testing device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the unwinding mechanism in this utility model;

[0021] Figure 3 This is a schematic diagram of the tensioning mechanism in this utility model;

[0022] Figure 4 This is a schematic diagram of the fixing component in this utility model;

[0023] Figure 5 This is a schematic diagram of the lifting component in this utility model.

[0024] In the diagram: 1. Inspection table; 2. Unwinding mechanism; 3. Tensioning mechanism; 31. Mounting frame; 32. Slide bar; 33. Slider; 34. Claw; 351. Support frame; 352. Cylinder; 353. Mounting plate; 354. Hinge rod; 361. Guide plate; 362. Return spring; 41. Sleeve; 42. Top rod; 43. Connecting rod; 44. Roller; 21. Unwinding table; 22. Motor. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0027] like Figures 1 to 5As shown, this utility model relates to a cable strength testing device, including: a testing table 1, an unwinding mechanism 2 for unwinding the cable, and a tensile mechanism 3 for tensile testing of the cable.

[0028] The unwinding mechanism 2 includes: an unwinding table 21 rotatably mounted on the detection table 1, and a motor 22 that drives the unwinding table 21 to rotate.

[0029] Workers place the bundled cables onto the unwinding table 21, and then the motor 22 drives the unwinding table 21 to rotate, thus unwinding the bundled cables. It should be noted that the unwinding table 21 is also equipped with a fixing mechanism to secure the bundled cables, ensuring that the bundled cables do not move during rotation and guaranteeing stability during placement. The mechanism for securing the bundled cables is existing technology and will not be described in detail here.

[0030] The testing station 1 is also equipped with a winding roller for winding the cable, which winds up the cable unwound from the unwinding station 21, thereby making the entire cable unwinding and winding process more organized and standardized.

[0031] The tensioning mechanism 3 includes: a mounting bracket 31 fixedly mounted on the testing table 1, a slide rod 32 fixedly mounted on the mounting bracket 31, a slider 33 slidably mounted on the slide rod 32, a claw 34 slidably mounted on the slider 33, a driving component for driving the slider 33 to move along the slide rod 32, and a fixing component for driving the claw 34 to clamp and fix the cable as the slider 33 moves.

[0032] A support frame 351 is fixedly installed on the testing table 1, a cylinder 352 is fixedly installed on the support frame 351, a mounting plate 353 is fixedly installed on the piston rod of the cylinder 352, a hinge rod 354 is hinged to the mounting plate 353, and the other end of the hinge rod 354 is hinged to the slider 33.

[0033] The fixing component includes: a guide plate 361 fixedly installed on the testing table 1; a claw 34 having a clamping end for clamping the cable and an abutting end for contacting the guide plate 361; the abutting end abutting against the guide plate 361; and a return spring 362 provided between the claw 34 and the slider 33.

[0034] The fixing component includes: a guide plate 361 fixedly installed on the testing table 1; a claw 34 having a clamping end for clamping the cable and an abutting end for contacting the guide plate 361; the abutting end abutting against the guide plate 361; and a return spring 362 provided between the claw 34 and the slider 33.

[0035] Once the unwinding table 21 begins to rotate and unwinds the cable in an orderly manner, staff can randomly select specific test sections to conduct sampling inspections according to testing requirements. At this time, the control motor 22 stops operating, preventing it from driving the unwinding table 21 to rotate. Simultaneously, the synchronous control cylinder 352 pushes the mounting plate 353 downwards smoothly. As the mounting plate 353 moves downwards, the hinge rod 354 moves downwards synchronously, thereby pushing the slider 33 to move directionally along the slide rod 32.

[0036] It should be noted that the sliders 33 and hinge rods 354 are arranged in two symmetrical sets. When the mounting plate 353 continues to move downward, the two sets of hinge rods 354 open and close in a scissor-like manner, thereby causing the two sliders 33 to separate in opposite directions. Since the cable passes through the sliders 33 beforehand, when the sliders 33 separate in opposite directions, the claws 34 slidably mounted on the sliders 33 gradually move towards the axis of the sliders 33 under the abutment of the guide plate 361, ultimately achieving reliable clamping and fixing of the wire harness.

[0037] After the clamping jaws 34 have secured the cable, the cylinder 352 continues to move downwards. At this point, the pressure sensor mounted on the mounting plate 353 begins to function, detecting tension data in real time. By analyzing this data, precise tension testing of the clamped cable can be performed, thereby enabling effective testing of the performance of different cable segments.

[0038] The guide plate 361 is an inclined plate that gradually increases in height from the stretching direction. By setting the inclined plate, when the slider 33 moves, the gripper inside the slider 33 is squeezed by the inclined plate, causing the gripper to gradually move towards the axis. After the cable is fixed, it can maintain the clamping state and continue to move.

[0039] The testing platform 1 is also equipped with a lifting assembly;

[0040] The lifting assembly includes: a sleeve 41 fixedly installed on the testing platform 1, a top rod 42 slidably installed inside the sleeve 41, and a connecting rod 43 hinged to the top rod 42; another section of the connecting rod 43 is hinged to the slider 33; and a roller 44 is provided on the top rod 42.

[0041] In scenarios where tensile testing of the cable is not required, cylinder 352 activates, causing the connected slider 33 to move towards each other. As the sliders 33 move towards each other, the connecting rod 43 cleverly drives the push rod 42, which is slidably mounted inside the sleeve 41, to slowly rise upwards, thereby lifting the cable that is in the unwinding and rewinding process.

[0042] Specifically, rollers 44 are installed on the top rod 42. When the cable is in the unwinding and rewinding state, the top rod 42, with the help of the rolling action of the rollers 44, can smoothly and effectively push the cable into a convex state. At this time, the staff can take advantage of this interval to manually select a portion of the cable for detailed inspection, focusing on the condition of the cable sheath, and carefully identifying whether there are any quality problems such as scratches, cracks, or perforations that may affect the normal use of the cable.

[0043] Working principle: After the unwinding table 21 rotates to unwind the cable, the operator can randomly select a section for sampling inspection. At this time, the control motor 22 stops rotating and simultaneously controls the cylinder 352 to push the mounting plate 353 downward. When the mounting plate 353 moves downward, the hinge rod 354 opens in a scissor-like manner, causing the two sliders 33 to separate towards each other. When the sliders 33 separate towards each other, the claws 34 slidably mounted on the sliders 33 move towards the axis of the sliders 33 under the abutment of the guide plate 361. It should be noted that the cable passes through the sliders 33, so that when the claws 34 move towards the axis, the cable bundle can be clamped and fixed; thus, different sections of the cable can be inspected. When it is not necessary to perform tensile testing on the cable, the rod can push the cable into a convex state, allowing manual sampling to observe the cable sheath coverage to check for scratches, cracks, perforations, and other problems that may affect its use.

[0044] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0045] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A cable strength testing device, characterized in that, include: Testing table, unwinding mechanism for unwinding cables, and tensile mechanism for tensile testing of cables; The tensioning mechanism includes: a mounting bracket fixedly installed on the testing table, a slide rod fixedly installed on the mounting bracket, a slider slidably installed on the slide rod, a chuck slidably installed on the slider, a driving component for driving the slider to move along the slide rod, and a fixing component for driving the chuck to clamp and fix the cable as the slider moves.

2. The cable strength testing device as described in claim 1, characterized in that, The drive assembly includes: a support frame fixedly mounted on the testing platform, a cylinder fixedly mounted on the support frame, a mounting plate fixedly mounted on the piston rod of the cylinder, a hinge rod hinged to the mounting plate, and the other end of the hinge rod hinged to the slider.

3. The cable strength testing device as described in claim 2, characterized in that, The fixing component includes: a guide plate fixedly installed on the testing table; a claw having a clamping end for holding the cable and an abutting end for contacting the guide plate; the abutting end abutting against the guide plate; and a return spring provided between the claw and the slider.

4. The cable strength testing device as described in claim 3, characterized in that, The guide plate is an inclined plate that gradually increases in height along the stretching direction.

5. The cable strength testing device as described in claim 4, characterized in that, The testing platform is also equipped with a lifting component; The lifting assembly includes: a sleeve fixedly installed on the testing platform, a top rod slidably installed inside the sleeve, and a connecting rod hinged to the top rod; the other end of the connecting rod is hinged to the slider.

6. The cable strength testing device as described in claim 5, characterized in that, The top rod is equipped with rollers.

7. The cable strength testing device as described in claim 1, characterized in that, The unwinding mechanism includes: an unwinding table rotatably mounted on the detection table, and a motor that drives the unwinding table to rotate.

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