Torsion-resistant and tear-resistant performance experimental device for power cable production
By designing a cable testing device that includes a first clamping component, a second clamping component, and an arc-shaped stop, the problem that existing devices cannot detect the mechanical properties of cables under torsion is solved, and accurate mechanical property testing of cables under torsion is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 宏胜科技有限公司
- Filing Date
- 2024-12-30
- Publication Date
- 2026-04-28
AI Technical Summary
Existing tensile strength testing devices can only detect the mechanical properties of cables in a straight state, but cannot detect the mechanical properties of cables in a torsional state, resulting in an insufficient understanding of the mechanical properties of cables in a torsional state in applications.
An experimental device was designed, comprising a first clamping assembly, a second clamping assembly, an arc-shaped stop, and an impact assembly. The device records the changes in the mechanical properties of the cable under torsion by twisting the cable and applying pressure until it tears.
It enables accurate recording and analysis of the mechanical properties of cables under torsion, thus improving the accuracy of testing the mechanical properties of cables under torsion.
Smart Images
Figure CN224176298U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a power cable performance testing device, and in particular to a power cable production anti-torsion and anti-tear performance testing device, belonging to the technical field of power cable performance testing devices. Background Technology
[0002] Cables are typically used to connect various electrical devices. Due to the complex and diverse application scenarios of cables, various performance tests need to be conducted on cables after they leave the factory. In addition to electrical performance, mechanical performance tests are also required. The most commonly used cable mechanical performance testing equipment is the tensile strength testing device, which is used to test the tensile properties, tensile strength, and deformation rate of cables.
[0003] However, existing tensile strength testing devices can usually only test the mechanical properties of cables in a straight state, and cannot test the mechanical properties of cables in a torsional state. The tensile strength and breaking point of cables will change when they are twisted and straight. They can only be estimated by testing data in the straight state, which leads to an insufficient understanding of the mechanical properties of cables in the torsional state in applications.
[0004] Therefore, it is urgent to improve the testing device for the torsion and tear resistance of power cables to solve the above-mentioned problems. Utility Model Content
[0005] The purpose of this invention is to provide a test device for the anti-torsion and anti-tear performance of power cables. The device uses a first clamping component, a second clamping component, and an arc-shaped stop to twist the cable. Then, an impact component applies pressure to the cable until it tears. By recording the changes in the cable's stress during the process, the mechanical properties of the cable under torsion are recorded.
[0006] To achieve the above objectives, the main technical solution adopted by this utility model includes: a base, two columns, and a mounting plate. The mounting plate is fixedly connected to one side of the base, the two columns are fixedly connected to the base, a first clamping assembly is longitudinally slidably connected between the two columns, a second clamping assembly is laterally slidably connected to the front of the mounting plate, an arc-shaped stop is fixedly connected to the front of the mounting plate, a fixed pulley is fixedly installed on the top of the two columns, a steel cable is slidably connected to the fixed pulley, a drive motor and a winch are fixedly installed on the upper surface of the base, and an impact assembly is connected to the winch through the steel cable.
[0007] Preferably, the first clamping assembly includes a slider, a rotating block, a tension sensor, and a gripper. The rotating block is rotatably connected to the side of the slider. A tension sensor is fixedly connected to one end of the rotating block, and a steel wire rope is connected to the other end of the tension sensor. The other end of the steel wire rope is fixedly connected to the gripper.
[0008] Preferably, the second clamping assembly includes a second slider and a second gripper, wherein the second gripper is located below the second slider and is fixedly connected to the second slider.
[0009] Preferably, the impact assembly includes an electromagnet and a weight, with the upper end of the electromagnet fixedly connected to the steel cable, and the weight located below the electromagnet and attracted by the electromagnet.
[0010] Preferably, reinforcing plates are fixedly connected to both sides of the front of the mounting plate, and the two columns are fixedly connected to the reinforcing plates and the mounting plate respectively. The inner side of the reinforcing plate is fixedly connected to the arc-shaped stop block.
[0011] Preferably, each of the columns is fixedly connected to a first slide rail on its inwardly opposite side, and the two sides of the slider are slidably connected to the first slide rail. The top of the slider is provided with a strike platform for placing a weight.
[0012] Preferably, both the reinforcing plate and the mounting plate are provided with a second slide rail on the side near the second slider. The second slider is slidably connected to the second slide rail. A nut seat is fixedly connected to the top of the second slider. A lead screw is internally threaded into the nut seat. Both ends of the lead screw are fixedly connected to the reinforcing plate and the mounting plate through supports.
[0013] This utility model has at least the following beneficial effects:
[0014] 1. The cable is twisted by clamping component No. 1, clamping component No. 2 and arc-shaped stop, and then pressure is applied to the cable by impact component until the cable tears. The mechanical properties of the cable under torsion state are recorded by recording the changes in cable force during the process. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0016] Figure 1 This is an isometric schematic diagram of part of the structure provided by this utility model;
[0017] Figure 2 This is a schematic diagram of the isometric structure provided by this utility model;
[0018] Figure 3 This is an isometric structural diagram of the No. 1 clamping component provided by this utility model;
[0019] Figure 4 This is an isometric structural diagram of the No. 2 clamping component provided by this utility model.
[0020] In the diagram: 1. Base; 2. Column; 3. Mounting plate; 4. Clamping assembly 1; 5. Clamping assembly 2; 6. Impact assembly; 7. Arc-shaped stop; 8. Fixed pulley; 9. Steel cable; 10. Drive motor; 11. Winch; 12. Steel wire rope; 13. Reinforcing plate; 14. Slide rail 1; 15. Impact platform; 16. Slide rail 2; 17. Nut seat; 18. Lead screw; 401. Slider 1; 402. Rotating block; 403. Tension sensor; 404. Gripper 1; 501. Slider 2; 502. Gripper 2; 601. Electromagnet; 602. Counterweight. Detailed Implementation
[0021] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0022] like Figure 1 - Figure 4As shown, the torsional and tear resistance testing device for power cable production provided in this embodiment includes a base 1, two columns 2, and a mounting plate 3. The mounting plate 3 is fixedly connected to one side of the base 1, and the two columns 2 are fixedly connected to the base 1. A first clamping assembly 4 is longitudinally slidably connected between the two columns 2. A second clamping assembly 5 is laterally slidably connected to the front of the mounting plate 3. An arc-shaped stop 7 is fixedly connected to the front of the mounting plate 3. A fixed pulley 8 is fixedly installed on the top of the two columns 2, and a steel cable 9 is slidably connected to the fixed pulley 8. 1. A drive motor 10 and a winch 11 are fixedly mounted on the upper surface. The winch 11 is connected to an impact assembly 6 via a steel cable 9. The first clamping assembly 4 includes a slider 401, a rotating block 402, a tension sensor 403, and a first gripper 404. The rotating block 402 is rotatably connected to the side of the slider 401. One end of the rotating block 402 is fixedly connected to the tension sensor 403, and the other end of the tension sensor 403 is connected to a steel wire rope 12. The other end of the steel wire rope 12 is fixedly connected to the first gripper 404. The second clamping assembly 5 The assembly includes a second slider 501 and a second gripper 502. The second gripper 502 is located below the second slider 501 and is fixedly connected to the second slider 501. One end of the cable is fixedly connected to the first gripper 404, and the other end of the cable is fixedly connected to the second gripper 502. Moving the first clamping assembly 4 downwards causes the middle section of the cable to bend at the arc-shaped stop 7. The impact assembly 6 includes an electromagnet 601 and a counterweight 602. The upper end of the electromagnet 601 is fixedly connected to the steel cable 9, and the counterweight 602 is located below the electromagnet 601 and is attracted by the electromagnet 601. When the electromagnet 601 is de-energized, the hammer 602 falls and lands on the impact platform 15, impacting the first clamping assembly 4. At the same time, the winch 11 can slowly lower the hammer 602, allowing it to slowly fall onto the impact platform 15. As the slider 401 slides downward, it applies tension to the cable. The tension sensor 403 records the changes in tension during the downward sliding of the slider 401. The wire rope 12 and the rotating block 402 ensure that the direction of the tension sensor 403 is always consistent with the direction of the cable.
[0023] Among them, such as Figure 1 as well as Figure 2 As shown, reinforcing plates 13 are fixedly connected to both sides of the front of the mounting plate 3. The two columns 2 are fixedly connected to the reinforcing plates 13 and the mounting plate 3 respectively. The inner side of the reinforcing plate 13 is fixedly connected to the arc-shaped stop 7. The reinforcing plate 13 further fixes the columns 2 and the arc-shaped stop 7, thereby strengthening the overall structural strength.
[0024] Among them, such as Figure 1 as well as Figure 2As shown, each of the opposing sides of the column 2 is fixedly connected to a slide rail 14. The two sides of the slider 401 are slidably connected to the slide rail 14. The top of the slider 401 is provided with an impact platform 15 for placing the hammer 602. The two sides of the slide rail 14 are slidably connected to the slide rail 14 so that the clamping assembly 4 can slide up and down stably. The impact platform 15 is flat and made of impact-resistant material.
[0025] Among them, such as Figure 1 as well as Figure 2 As shown, the reinforced version and the mounting plate 3 are both equipped with a second slide rail 16 on the side near the second slider 501. The second slider 501 is slidably connected to the second slide rail 16. A nut seat 17 is fixedly connected to the top of the second slider 501. A lead screw 18 is internally threaded onto the nut seat 17. The two ends of the lead screw 18 are fixedly connected to the reinforced plate 13 and the mounting plate 3 through supports. When the second slide rail 16 is slidably connected to both sides of the second slider 501, the second clamping component 5 is more stable when sliding. Rotating the lead screw 18 can adjust the position of the second clamping component 5.
[0026] like Figure 1 - Figure 4 As shown in this embodiment, the principle of the anti-torsion and anti-tear performance test device for power cable production is as follows: One end of the cable is fixedly connected to the first clamp 404, and the other end of the cable is fixedly connected to the second clamp 502. The middle section of the cable rests on the arc-shaped stop 7. The position of the second clamping component 5 is adjusted by rotating the screw 18, and the second clamping component 5 is fixed by the screw 18. Then, the steel cable 9 is released by the winch 11 to move the impact component 6 downward. After the hammer 602 contacts the impact platform 15, the slider 401 moves downward to apply pressure to the cable until the cable tears. The tension sensor 403 records the change in tension during the downward sliding of the slider 401. The steel wire rope 12 and the rotating block 402 ensure that the direction of the tension sensor 403 is always consistent with the direction of the cable, or the hammer 602 is released directly at a certain height. The hammer 602 falls onto the impact platform 15 and impacts the first clamping component 4. The performance of the cable under torsion is analyzed by the change in tension recorded by the tension sensor 403.
[0027] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.
[0028] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.
[0029] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A test device for the torsional and tear resistance properties of power cables, comprising a base (1), two columns (2), and a mounting plate (3), characterized in that: The mounting plate (3) is fixedly connected to one side of the base (1), the two columns (2) are fixedly connected to the base (1), a first clamping assembly (4) is longitudinally slidably connected between the two columns (2), a second clamping assembly (5) is slidably connected to the front of the mounting plate (3), an arc-shaped stop block (7) is fixedly connected to the front of the mounting plate (3), a fixed pulley (8) is fixedly installed on the top of the two columns (2), a steel cable (9) is slidably connected to the fixed pulley (8), a drive motor (10) and a winch (11) are fixedly installed on the upper surface of the base (1), and an impact assembly (6) is connected to the winch (11) through the steel cable (9).
2. The torsional and tear resistance testing device for power cable production according to claim 1, characterized in that: The first clamping assembly (4) includes a slider (401), a rotating block (402), a tension sensor (403), and a first gripper (404). The rotating block (402) is rotatably connected to the side of the slider (401). One end of the rotating block (402) is fixedly connected to the tension sensor (403), and the other end of the tension sensor (403) is connected to a wire rope (12). The other end of the wire rope (12) is fixedly connected to the first gripper (404).
3. The torsional and tear resistance testing device for power cable production according to claim 1, characterized in that: The second clamping assembly (5) includes a second slider (501) and a second gripper (502). The second gripper (502) is located below the second slider (501) and is fixedly connected to the second slider (501).
4. The torsional and tear resistance testing device for power cable production according to claim 2, characterized in that: The impact assembly (6) includes an electromagnet (601) and a weight (602). The upper end of the electromagnet (601) is fixedly connected to the steel cable (9), and the weight (602) is located below the electromagnet (601) and is attracted by the electromagnet (601).
5. The torsional and tear resistance testing device for power cable production according to claim 3, characterized in that: The mounting plate (3) has a reinforcing plate (13) fixedly connected to both sides of the front. The two columns (2) are fixedly connected to the reinforcing plate (13) and the mounting plate (3) respectively. The inner side of the reinforcing plate (13) is fixedly connected to the arc-shaped stop (7).
6. The torsional and tear resistance testing device for power cable production according to claim 4, characterized in that: The column (2) is fixedly connected to a slide rail (14) on its inward opposite side. The two sides of the slider (401) are slidably connected to the slide rail (14). The top of the slider (401) is provided with a strike platform (15) for placing a hammer (602).
7. The torsional and tear resistance testing device for power cable production according to claim 5, characterized in that: The reinforcing plate (13) and the mounting plate (3) are both provided with a second slide rail (16) on the side near the second slider (501). The second slider (501) is slidably connected to the second slide rail (16). A nut seat (17) is fixedly connected to the top of the second slider (501). A screw rod (18) is internally threaded to the nut seat (17). Both ends of the screw rod (18) are fixedly connected to the reinforcing plate (13) and the mounting plate (3) through supports.