Line vibration fatigue damage detection device

Abstract

The invention relates to the technical field of cable strength testing, in particular to a line vibration fatigue damage detection device which is characterized in that a supporting frame is arranged on the upper end face of a workbench, positioning cylinders are rotationally connected to the two sides of the supporting frame, clamping rods are arranged on the side walls of the positioning cylinders, threads are formed in the outer sides of the clamping rods, and the positioning cylinders are rotationally connected with the supporting frame. The clamping rod is in threaded connection with the positioning cylinder, a clamping protrusion is arranged at the top of the clamping rod, a positioning plate is arranged above the workbench, a tensile machine is arranged on the upper end face of the positioning plate, a drag hook is arranged at the output end of the tensile machine, and a conveying mechanism for driving the positioning plate to move is arranged on the workbench. And a driving part for driving the positioning cylinder to rotate is arranged on the supporting frame. Compared with the prior art, the tensile strength and the torsional strength of the cable can be detected respectively, the torsional strength can be detected while the tensile strength of the cable is detected, equipment does not need to be replaced, and the detection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cable strength testing, and in particular to a line vibration fatigue damage detection device. Background Art

[0002] Wires and cables are wire products used to transmit electrical energy, information and realize electromagnetic energy conversion. Wires and cables in a broad sense are also referred to as cables. Cables in a narrow sense refer to insulated cables, which can be defined as: a collection of the following parts; one or more insulated cores, and their respective coatings, total protective layers and outer sheaths. Cables may also have additional uninsulated conductors.

[0003] Wires and cables need to be tested for their physical properties before leaving the factory, including tensile strength and anti-twisting ability. During the testing, the above two properties need to be tested on two different devices. The equipment needs to be frequently replaced, which is inefficient and has low practicality. Summary of the invention

[0004] The purpose of the present invention is to propose a line vibration fatigue damage detection device in order to solve the above-mentioned problem.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A line vibration fatigue damage detection device comprises a workbench, wherein a support frame is provided on the upper end surface of the workbench, positioning cylinders are rotatably connected on both sides of the support frame, a clamping rod is provided on the side wall of the positioning cylinder, a thread is provided on the outer side of the clamping rod, the clamping rod and the positioning cylinder are threadedly connected, a clamping protrusion is provided on the top of the clamping rod, a positioning plate is provided above the workbench, a tensile machine is provided on the upper end surface of the positioning plate, a hook is provided on the output end of the tensile machine, a transport mechanism for driving the positioning plate to move is provided on the workbench, and a driving part for driving the two positioning cylinders to rotate in opposite directions is provided on the support frame.

[0007] Preferably, the driving part is arranged in a limit frame at the bottom of the support frame, and the first transmission rods are rotatably connected to both sides of the limit frame, a driving gear is arranged at one end of the first transmission rod, a driven gear is arranged on the positioning cylinder, the driving gear and the driven gear are meshingly connected, and a driving mechanism is arranged in the limit frame to drive the two first transmission rods to rotate in opposite directions at the same time.

[0008] Preferably, the driving mechanism includes a second transmission rod rotatably connected to the top of the support frame, the bottom end of the second transmission rod extends into the limit frame, a driving bevel gear is provided at the bottom end of the second transmission rod, one end of the first transmission rod extends into the limit frame and is fixedly connected to a driven bevel gear, and the driving bevel gear and the driven bevel gear are meshingly connected.

[0009] Preferably, a worm gear is provided on the top of the second transmission rod, and a limit seat is provided on the upper end surface of the support frame. The third transmission rod is rotatably connected to the limit seat, a worm is provided at one end of the third transmission rod, and a first rotating wheel is provided at the other end of the third transmission rod, and the worm is meshingly connected with the worm gear.

[0010] Preferably, the transport mechanism comprises a fourth transmission rod rotatably connected to the support frame, a thread is provided on the outer side of the fourth transmission rod, the fourth transmission rod passes through the positioning plate, the fourth transmission rod and the positioning plate are threadedly connected, and a second rotating wheel is provided at one end of the fourth transmission rod.

[0011] Preferably, a limiting rod is provided on the side of the support frame, the limiting rod passes through the positioning plate, and the limiting rod and the positioning plate are slidably connected.

[0012] Preferably, a mounting hole is provided on a side surface of the support frame.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0014] Compared with the existing technology, the present application can detect the tensile strength and torsional strength of the cable separately, and can also detect the torsional strength while detecting the tensile strength of the wire and cable, without replacing the equipment, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A front view structural schematic diagram of a detection device provided according to an embodiment of the present invention is shown.

[0016] Figure 2 A side structural schematic diagram of a detection device provided according to an embodiment of the present invention is shown.

[0017] Figure 3 A bottom-up structural schematic diagram of a detection device provided according to an embodiment of the present invention is shown.

[0018] Figure 4 The embodiment provided according to the present invention shows Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0019] Figure 5 The embodiment provided according to the present invention shows Figure 2Schematic diagram of the enlarged structure at B in the [original context, not specified in the question].

[0020] Legend description:

[0021] 1. Workbench; 2. Support frame; 3. Positioning cylinder; 4. Clamping rod; 5. Clamping protrusion; 6. First transmission rod; 7. Driven gear; 8. Driving gear; 9. Limiting frame; 10. Driving bevel gear; 11. Driven bevel gear; 12. Second transmission rod; 13. Worm gear; 14. Limiting seat; 15. Third transmission rod; 16. Worm; 17. First runner; 18. Positioning plate; 19. Tensile testing machine; 20. Hook; 21. Fourth transmission rod; 22. Limiting rod; 23. Second runner; 24. Mounting hole. Specific implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0023] Please refer to Figure 1-5 , the present invention provides a technical solution:

[0024] A device for detecting line vibration fatigue damage includes a workbench 1. A support frame 2 is provided on the upper end surface of the workbench 1. Positioning cylinders 3 are rotatably connected to both sides of the support frame 2. A clamping rod 4 is provided on the side wall of the positioning cylinder 3. Threads are provided on the outer side of the clamping rod 4. The clamping rod 4 is threadedly connected to the positioning cylinder 3. A clamping protrusion 5 is provided at the top of the clamping rod 4. A positioning plate 18 is provided above the workbench 1. A tensile testing machine 19 is provided on the upper end surface of the positioning plate 18. A hook 20 is provided at the output end of the tensile testing machine 19. A transport mechanism for driving the positioning plate 18 to move is provided on the workbench 1. A driving part for driving the two positioning cylinders 3 to rotate in opposite directions is provided on the support frame 2; the support frame 2 is preferably set in a U shape. The bottom of the clamping rod 4 can be rotatably connected to an arc-shaped clamping block, so as to improve the fixing effect of the cable. When a cable to be detected is placed in the positioning cylinder 3, rotate the clamping rod 4. As the clamping rod 4 rotates, the bottom of the clamping rod 4 can press the cable, thus completing the fixing before the cable test. During the test, the two positioning cylinders 3 rotate in different directions, thus driving the cable to twist. As the twisting angle of the cable increases, the cable shell may crack. Twist repeatedly until the cable cracks, and at this time, the anti-twisting strength of the cable is measured.

[0025] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the driving part is arranged at a limit frame 9 at the bottom of the support frame 2, and the two sides of the limit frame 9 are respectively rotatably connected with the first transmission rod 6, one end of the first transmission rod 6 is provided with a driving gear 8, and a driven gear 7 is provided on the positioning cylinder 3. The driving gear 8 and the driven gear 7 are meshed and connected. A driving mechanism for driving the two first transmission rods 6 to rotate in opposite directions at the same time is arranged in the limit frame 9, and the driving mechanism includes a second transmission rod 12 rotatably connected to the top of the support frame 2, and the bottom end of the second transmission rod 12 extends into the limit frame 9, and the bottom end of the second transmission rod 12 is provided with a driving bevel gear 10, and one end of the first transmission rod 6 extends into the limit frame 9 and is fixed A driven bevel gear 11 is fixedly connected, and the driving bevel gear 10 is meshingly connected to the driven bevel gear 11; one end of the first transmission rod 6 can be rotatably connected to the inner wall of the support frame 2, so that the stability of the first transmission rod 6 can be improved, and the driving bevel gear 10 can drive the two driven bevel gears 11 to rotate at the same time. Because the two driven bevel gears 11 are symmetrically arranged on both sides of the driving bevel gear 10, the two driven bevel gears 11 can drive the two first transmission rods 6 to rotate in opposite directions, and then the two driving gears 8 drive the two positioning cylinders 3 to rotate in opposite directions through the driven gears 7, thereby completing the test of the cable torsional strength.

[0026] A worm gear 13 is provided on the top of the second transmission rod 12, and a limiting seat 14 is provided on the upper end surface of the support frame 2. The third transmission rod 15 is rotatably connected to the limiting seat 14, and a worm 16 is provided at one end of the third transmission rod 15, and a first rotating wheel 17 is provided at the other end of the third transmission rod 15. The worm 16 and the worm wheel 13 are meshingly connected; the first rotating wheel 17 is rotated, and the first rotating wheel 17 drives the third transmission rod 15 to rotate, the third transmission rod 15 drives the worm 16 to rotate, the worm 16 drives the worm wheel 13 to rotate, and the worm wheel 13 drives the second transmission rod 12 to rotate. The cooperation between the worm 16 and the worm wheel 13 has a self-locking function, which can ensure that the torsion degree of the cable will not change during the cable testing process.

[0027] Specifically, Figure 2 As shown, the transport mechanism includes a fourth transmission rod 21 rotatably connected to the support frame 2, a thread is provided on the outer side of the fourth transmission rod 21, the fourth transmission rod 21 passes through the positioning plate 18, the fourth transmission rod 21 and the positioning plate 18 are threadedly connected, a second rotating wheel 23 is provided at one end of the fourth transmission rod 21, a limiting rod 22 is provided on the side of the support frame 2, the limiting rod 22 passes through the positioning plate 18, and the limiting rod 22 and the positioning plate 18 are slidably connected; the second rotating wheel 23 is rotated, the second rotating wheel 23 drives the fourth transmission rod 21 to rotate, and then the positioning plate 18 slides along the limiting rod 22, and then the position of the tensile testing machine 19 is adjusted, so as to facilitate the tensile strength test of different positions of the cable.

[0028] Specifically, Figure 2As shown, a mounting hole 24 is provided on the side of the support frame 2; the mounting hole 24 corresponds to the positioning tube 3 in order to facilitate the installation of the cable.

[0029] In summary, the line vibration fatigue damage detection device provided by the present embodiment, when it is necessary to perform strength test on the cable, first install the cable on the detection equipment, when it is necessary to measure the torsional strength, rotate the first rotating wheel 17, the first rotating wheel 17 drives the third transmission rod 15 to rotate, the third transmission rod 15 drives the worm 16 to rotate, the worm 16 drives the worm wheel 13 to rotate, the worm wheel 13 drives the second transmission rod 12 to rotate, and then drives the bevel gear 10 to drive the two driven bevel gears 11 to rotate at the same time, the two driven bevel gears 11 drive the two first transmission rods 6 to rotate in opposite directions, and then the two driving gears 8 drive the two positioning cylinders 3 to rotate in opposite directions through the driven gear 7, so as to complete the test of the torsional strength of the cable, when it is necessary to measure the tensile strength of the cable, rotate the second rotating wheel 23, the second rotating wheel 23 drives the fourth transmission rod 21 to rotate, and then the positioning plate 18 slides along the limit rod 22, and then adjusts the position of the tensile machine 19, so as to facilitate the tensile strength test of different positions of the cable; of course, the cable can also be twisted by a certain angle first, and then the tensile strength of the cable in the twisted state can be measured again.

[0030] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A line vibration fatigue damage detection device, characterized in that: include: A workbench, a support frame, a positioning cylinder, a clamping rod, a driven gear, a limit frame, a first transmission rod, a driving gear, a second transmission rod, a driving bevel gear, a driven bevel gear, a positioning plate, a tensile machine, a draw hook and a transport mechanism; A support frame is arranged on the upper end surface of the workbench, and a positioning cylinder is rotatably connected to each of the two sides of the support frame, and a clamping rod is threadedly connected to the side walls of the two positioning cylinders, and driven gears are arranged on the two positioning cylinders; A limit frame is arranged at the bottom of the support frame, and two sides of the limit frame are rotatably connected to a first transmission rod respectively, and one end of the two first transmission rods is provided with a driving gear; The driving gear and the driven gear are meshingly connected; A second transmission rod rotatably connected to the top of the support frame, a rotation mechanism is arranged at the top end of the second transmission rod, and a driving bevel gear is arranged at the bottom end of the second transmission rod; A driven bevel gear is disposed at the other end of the first transmission rod; The driving bevel gear and the driven bevel gear are meshingly connected; A positioning plate is arranged above the workbench, a tensile machine is arranged on the upper end surface of the positioning plate, and a draw hook is arranged at the output end of the tensile machine; The workbench is provided with a transport mechanism for driving the positioning plate to move.

2. A line vibration fatigue damage detection device according to claim 1, characterized in that: The rotating mechanism comprises: a worm gear arranged at the top of the second transmission rod, and a worm gear arranged at one end of the third transmission rod; A limit seat is arranged on the upper end surface of the support frame, and the third transmission rod is rotatably connected to the limit seat. A worm is arranged at one end of the third transmission rod, and a first rotating wheel is arranged at the other end. The worm is meshingly connected with the worm wheel.

3. A line vibration fatigue damage detection device according to claim 1, characterized in that: The transport mechanism includes a fourth transmission rod rotatably connected to the support frame, a thread is provided on the outer side of the fourth transmission rod, the fourth transmission rod passes through the positioning plate, the fourth transmission rod and the positioning plate are threadedly connected, and a second rotating wheel is provided at one end of the fourth transmission rod.

4. A line vibration fatigue damage detection device according to claim 3, characterized in that: A limiting rod is arranged on the side of the support frame, the limiting rod passes through the positioning plate, and the limiting rod is slidably connected to the positioning plate.

5. A line vibration fatigue damage detection device according to claim 1, characterized in that: The side surface of the support frame is provided with a mounting hole.

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