A cable tensile strength testing device

Abstract

This utility model discloses a cable tensile strength testing device, comprising: a worktable, the worktable being rectangular; a drive assembly, the drive assembly including a guide rail, the guide rail being fixedly mounted on the top of the worktable via support legs, a slide block being slidably connected to the inner wall of the guide rail, and a tensile sensor being installed between two slide blocks; and a clamping assembly, the clamping assembly having two sets, the clamping assembly including hooks and grippers. This relates to the field of cable tensile strength testing devices. By driving a first servo motor with forward and reverse threaded screws, the moving speed and distance of the slide blocks can be precisely controlled, thereby accurately adjusting the magnitude and speed of the tensile force applied to the cable. Simultaneously, the tensile sensor monitors and feeds back the tensile data in real time. Combined with the firm and stable clamping of the cable by the clamping assembly, the accuracy of data acquisition during the test can be ensured, making the test results true and reliable, and efficiently completing the accurate testing of cable tensile strength.

Description

Technical Field

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

[0002] In numerous fields such as power transmission, communication engineering, and industrial automation, cables serve as crucial carriers of electrical energy and signals, and their quality and performance directly impact the stable operation of the system. Tensile strength, a key indicator of cable quality, reflects a cable's ability to resist fracture during tensile testing. Accurately testing cable tensile strength is essential for ensuring the safety and reliability of cables in practical applications. Currently, some common cable tensile strength testing devices on the market have simple structures and insufficient cable clamping, leading to cable slippage and detachment during testing, resulting in inaccurate test data that fails to accurately reflect the actual tensile strength of the cable. Furthermore, some devices have inaccurate drive systems, making it difficult to precisely control the magnitude and speed of tensile force, resulting in significant errors in the test results. Utility Model Content

[0003] The purpose of this invention is to provide a cable tensile strength testing device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A cable tensile strength testing device, comprising:

[0006] A worktable, wherein the worktable is rectangular;

[0007] A drive assembly includes a guide rail, which is fixedly mounted on the top of the workbench via support legs. A slide block is slidably connected to the inner wall of the guide rail, and a tension sensor is installed between two slide blocks.

[0008] A clamping assembly, comprising two sets, including hooks and grippers.

[0009] In a preferred embodiment of this utility model, a sliding groove is provided on the top inner wall of the guide rail, and a positive and negative threaded screw is rotatably connected between the inner walls of both ends of the guide rail through a bearing, and a first servo motor is fixedly installed on the inner wall of the end of the guide rail.

[0010] In a preferred embodiment of this utility model, the output shaft of the first servo motor is connected to the outer wall of the guide rail by gear meshing, and the two slides are respectively threaded to the outer walls of the positive and negative lead screws on both sides, and the two slides are symmetrically distributed on the left and right.

[0011] In a preferred embodiment of this utility model, a support plate is fixedly installed at the bottom of the slide, and the hook is fixedly installed at the bottom of the support plate. The hooks are arranged with opposite opening directions and are used to hang connecting cables. A U-shaped clamping block is provided at the bottom end of the clamp.

[0012] In a preferred embodiment of this utility model, guide grooves are provided on the top and bottom inner walls of the U-shaped clamping block, and a clamping seat is slidably connected to the inner wall of the U-shaped clamping block.

[0013] In a preferred embodiment of this utility model, a push plate is fixedly installed on the outer wall of the rear end of the clamp, and the inner walls of both ends of the guide groove are rotatably connected to the lead screw through bearings. The outer wall of the lead screw is threadedly connected to the inner wall of the clamp, and the two lead screws are connected by a synchronous pulley and a synchronous belt for transmission.

[0014] In a preferred embodiment of this utility model, an end plate is fixedly installed on the outer rear wall of the U-shaped clamping block, and a servo motor is fixedly installed on the outer wall of the end plate.

[0015] In a preferred embodiment of this utility model, the outer wall of the output shaft of the servo motor is connected to the outer wall of the lead screw through gear meshing, and the inner wall of the clamp and the U-shaped clamping block is provided with anti-slip pads. The clamp and the U-shaped clamping block cooperate to lock the cable.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0017] 1. By driving the forward and reverse lead screws with the first servo motor, the moving speed and distance of the slide can be precisely controlled, thereby accurately adjusting the magnitude and speed of the tension applied to the cable. At the same time, the tension sensor monitors the tension data in real time and provides feedback. Combined with the clamping assembly to firmly and stably clamp the cable, the accuracy of data acquisition during the test can be guaranteed, making the test results real and reliable, and efficiently completing the accurate test of the cable tensile strength.

[0018] 2. By controlling the direction and speed of the motor, the tensile test process can be easily controlled. Whether starting, pausing or continuing the test, it can be operated easily, reducing the difficulty of the operator's work and improving the flexibility and controllability of the test operation. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1This is a schematic diagram of the main structure of a cable tensile strength testing device;

[0021] Figure 2 This is a top view schematic diagram of a cable tensile strength testing device;

[0022] Figure 3 A schematic diagram of a clamping component structure in a cable tensile strength testing device;

[0023] Figure 4 A bottom view of the clamping component in a cable tensile strength testing device;

[0024] Figure 5 This is an exploded view of the clamp in a cable tensile strength testing device.

[0025] In the diagram: workbench 100, guide rail 200, slide groove 210, positive and negative threaded screw 220, first servo motor 230, slide block 240, tension sensor 250, support plate 300, hook 310, clamp 320, U-shaped clamping block 321, guide groove 322, end plate 323, screw 324, clamp 325, push plate 326, synchronous pulley 327, synchronous belt 328, servo motor 329. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] Example 1: As Figures 1-5 ,include:

[0028] Workbench 100, workbench 100 is set as a rectangle;

[0029] The drive assembly includes a guide rail 200, which is fixedly mounted on the top of the worktable 100 by a support leg. The inner wall of the guide rail 200 is slidably connected to a slide block 240, and a tension sensor 250 is installed between the two slide blocks 240.

[0030] The clamping assembly has two sets, including a hook 310 and a gripper 320.

[0031] The specific application scenario of this embodiment is as follows: The workbench 100 serves as the basic support platform for the entire test device, providing a stable installation foundation for other components. The guide rail 200 in the drive assembly is installed on the top of the workbench 100 to guide the sliding of the slide 240. When the cable is subjected to a tensile strength test, the two ends of the cable are respectively hooked to the two sets of clamping assemblies through hooks 310. Under the action of external power, the two slides 240 slide relative to each other or in opposite directions along the inner wall of the guide rail 200, thereby applying tension to the cable. During the sliding process of the slides 240, the tension sensor 250 installed between the two slides 240 monitors the magnitude of the tension in real time and feeds back the data so that the operator can obtain the stress situation of the cable under the action of tension, thereby judging the tensile strength of the cable.

[0032] Example 2: Figures 1-3 The top inner wall of the guide rail 200 is provided with a sliding groove 210. The inner walls of both ends of the guide rail 200 are rotatably connected by bearings to the positive and negative threaded screws 220. The inner wall of the end of the guide rail 200 is fixedly installed with a first servo motor 230. The output shaft of the first servo motor 230 is connected to the outer wall of the guide rail 200 through gear meshing. The two slides 240 are respectively threaded to the outer walls on both sides of the positive and negative threaded screws 220. The two slides 240 are symmetrically distributed on the left and right.

[0033] The specific application scenario of this embodiment is as follows: The groove 210 opened on the inner wall of the top of the guide rail 200 cooperates with the slide block 240 to enhance the stability and guidance of the slide block 240 when sliding. The positive and negative threaded screws 220 rotatably connected between the inner walls of the two ends of the guide rail 200 rotate under the drive of the first servo motor 230. The output shaft of the first servo motor 230 is connected to the outer wall of the guide rail 200 through gear meshing transmission, and transmits power to the positive and negative threaded screws 220. Since the threads on both sides of the positive and negative threaded screws 220 rotate in opposite directions, the two slide blocks 240 are respectively threadedly connected to the outer walls on both sides of the positive and negative threaded screws 220. Therefore, when the positive and negative threaded screws 220 rotate, the two slide blocks 240 will move relative to or away from each other along the guide rail 200. By controlling the speed and direction of the first servo motor 230, the moving speed and distance of the slide blocks 240 can be precisely controlled, thereby precisely controlling the magnitude and speed of the tension applied to the cable, providing stable and controllable tension conditions for accurately testing the tensile strength of the cable.

[0034] Example 3: Figures 4-5A support plate 300 is fixedly installed at the bottom of the slide 240. Hooks 310 are fixedly installed at the bottom of the support plate 300. The openings of the hooks 310 are arranged in opposite directions. The hooks 310 are used to hang and connect cables. The bottom end of the clamp 320 is provided with a U-shaped clamping block 321. The top and bottom inner walls of the U-shaped clamping block 321 are provided with guide grooves 322. The inner wall of the U-shaped clamping block 321 is slidably connected to the clamping seat 325. The clamping seat 325 is slidably connected to the inner wall of the U-shaped clamping block 321. A push plate 326 is fixedly installed on the outer wall of the rear end of the clamping seat 325. The guide grooves 322 are located at both ends. The wall is rotatably connected to the lead screw 324 via bearings. The outer wall of the lead screw 324 is threadedly connected to the inner wall of the clamp 325. The two lead screws 324 are connected by a synchronous pulley 327 and a synchronous belt 328. The end plate 323 is fixedly installed on the outer wall of the rear end of the U-shaped clamping block 321. The servo motor 329 is fixedly installed on the outer wall of the end plate 323. The outer wall of the output shaft of the servo motor 329 is connected to the outer wall of the lead screw 324 by gear meshing. The clamp 325 and the inner wall of the U-shaped clamping block 321 are provided with anti-slip pads. The clamp 325 and the U-shaped clamping block 321 lock the cable together.

[0035] The specific application scenario of this embodiment is as follows: The support plate 300 fixedly installed at the bottom of the slide 240 provides an installation base for the hook 310 and the clamp 320. The hooks 310 have opposite opening directions to facilitate the hanging of both ends of the cable. After the cable is hung, the U-shaped clamping block 321 of the clamp 320 drives the lead screw 324 to rotate through the servo motor 329 to clamp the cable. The output shaft of the servo motor 329 drives the lead screw 324 to rotate through gear meshing. Since the lead screw 324 is threadedly connected to the inner wall of the clamp 325, and the two lead screws 324 are connected by the same... The stepper pulley 327 and the synchronous belt 328 are connected for transmission. When the lead screw 324 rotates, the two clamps 325 will move relative to each other along the guide groove 322 on the inner wall of the U-shaped clamping block 321. The anti-slip pads set on the clamps 325 and the inner wall of the U-shaped clamping block 321 increase the friction between them and the cable, ensuring that the cable will not slip out of the clamp 320 during the tensile test. By controlling the rotation angle and number of turns of the servo motor 329, the clamping force of the clamps 325 can be precisely controlled, so that the cable is firmly clamped, thereby accurately testing the tensile strength of the cable in the tensile test.

[0036] The working principle of this utility model is as follows: When used by those skilled in the art, the two ends of the cable are first hung on the two sets of clamping components by hooks 310 respectively. Then, the servo motor 329 in the clamp 320 drives the lead screw 324 to rotate, which drives the clamping seat 325 to move relative to the guide groove 322 on the inner wall of the U-shaped clamping block 321. With the help of the anti-slip pads on the inner wall of the U-shaped clamping block 321, the cable is firmly clamped to prevent the cable from slipping during the test. In the tensile test stage, the first servo motor 230 is started, and its output shaft is connected to the outer wall of the guide rail 200 through gear meshing transmission, driving the positive and negative threaded lead screw 220 to rotate. Since the threads on both sides of the positive and negative threaded lead screw 220 rotate in opposite directions, the two slides 240 respectively connect with the threads on the outer walls of the positive and negative threaded lead screw 220 on both sides. The connection allows the two slides 240 to move relative to or away from each other along the guide rail 200 when the lead screw 220 rotates, thus applying tension to the cable. During the movement of the slides 240, the tension sensor 250 installed between the two slides 240 monitors the tension data in real time and feeds the data back to the operator. Throughout the test, by controlling the speed and direction of the first servo motor 230, the moving speed and distance of the slides 240 can be precisely adjusted, thereby accurately controlling the magnitude and speed of the tension applied to the cable. At the same time, by controlling the rotation of the servo motor 329, the clamping force of the clamp 325 can be flexibly adjusted to adapt to cables of different specifications. Finally, based on the data fed back by the tension sensor 250, the accurate test of the cable tension strength is completed.

[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cable tensile strength testing device, characterized in that, include: A workbench (100) is configured as a rectangle; A drive assembly includes a guide rail (200) which is fixedly mounted on the top of a workbench (100) by means of a support leg. A slide block (240) is slidably connected to the inner wall of the guide rail (200), and a tension sensor (250) is installed between the two slide blocks (240). The clamping assembly has two sets, and the clamping assembly includes a hook (310) and a clamp (320).

2. The cable tensile strength testing device according to claim 1, characterized in that, The top inner wall of the guide rail (200) is provided with a sliding groove (210), and the inner walls of both ends of the guide rail (200) are rotatably connected by a bearing to a positive and negative thread screw (220). The inner wall of the end of the guide rail (200) is fixedly installed with a first servo motor (230).

3. The cable tensile strength testing device according to claim 2, characterized in that, The output shaft of the first servo motor (230) is connected to the outer wall of the guide rail (200) by gear meshing. The two slides (240) are respectively threaded to the outer walls of the positive and negative thread screws (220) on both sides. The two slides (240) are symmetrically distributed on the left and right.

4. The cable tensile strength testing device according to claim 1, characterized in that, The slide (240) is fixedly mounted with a support plate (300) at the bottom. The hook (310) is fixedly mounted on the bottom of the support plate (300). The hook (310) has an opening direction opposite to the other. The hook (310) is used to hang the connecting cable. The bottom end of the clamp (320) is provided with a U-shaped clamping block (321).

5. The cable tensile strength testing device according to claim 4, characterized in that, The top and bottom inner walls of the U-shaped clamping block (321) are provided with guide grooves (322), and the inner wall of the U-shaped clamping block (321) is slidably connected to the clamping seat (325). The clamping seat (325) is slidably connected to the inner wall of the U-shaped clamping block (321).

6. The cable tensile strength testing device according to claim 5, characterized in that, The push plate (326) is fixedly installed on the outer wall of the rear end of the clamp (325). The inner walls of both ends of the guide groove (322) are rotatably connected to the lead screw (324) through bearings. The outer wall of the lead screw (324) is threadedly connected to the inner wall of the clamp (325). The two lead screws (324) are connected by a synchronous pulley (327) and a synchronous belt (328).

7. The cable tensile strength testing device according to claim 6, characterized in that, An end plate (323) is fixedly installed on the outer wall of the rear end of the U-shaped clamping block (321), and a servo motor (329) is fixedly installed on the outer wall of the end plate (323).

8. The cable tensile strength testing device according to claim 7, characterized in that, The outer wall of the output shaft of the servo motor (329) is connected to the outer wall of the lead screw (324) by gear meshing. The inner wall of the clamp (325) and the U-shaped clamping block (321) is provided with anti-slip pads. The clamp (325) and the U-shaped clamping block (321) cooperate to lock the cable.

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