Cable tensile property detection device

Abstract

The utility model discloses a cable tensile property detection device. The cable tensile property detection device comprises a workbench, a fixing mechanism and a pulling mechanism, a working frame is mounted on the working table; the fixing mechanism is installed on the workbench, the fixing mechanism comprises a pair of supporting plates, fixing blocks are fixed to the supporting plates, extrusion blocks are connected to the fixing blocks in a sliding mode, and non-slip mats are fixed to the fixing blocks and the extrusion blocks; the pulling mechanism is installed on the pair of supporting plates and comprises a pair of installation blocks, baffles are fixed to the installation blocks, rotating shafts are rotationally connected between the pair of installation blocks and the baffles, extrusion wheels are fixed to the rotating shafts, and rotating blocks are fixed to one ends of the rotating shafts. Compared with the prior art, the cable tensile property detection device can pull the two ends of the cable, so that the cable can be in a tensioned state in the fixing process, the deviation of a detection result can be reduced, and the accurate cable tensile property can be obtained.

Description

Technical Field

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

[0002] Cables are essential power and signal transmission devices, consisting of several or groups of conductors and an insulating outer protective layer, forming a rope-like structure. Cables play a crucial role in power transmission lines, transmitting electrical energy generated by power plants, substations, or distribution stations to users at different locations for power consumption. Tensile strength testing of cables is a critical step in the manufacturing and use of wires and cables, directly affecting their safety performance and service life. Tensile strength testing primarily assesses a cable's ability to operate safely under specific conditions by simulating the tensile forces it experiences in actual use.

[0003] In the existing technology, the two ends of the cable to be tested are fixed to the cable tensile performance testing device. The cable tensile performance testing device can pull the two ends of the cable to test the tensile performance of the cable. However, the cable is not easy to tighten during the fixing process, resulting in a long stretch of the cable. It is not easy to control the quantitative process of cable stretching, which leads to errors in the test results and makes it difficult to obtain accurate cable tensile performance.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a cable tensile performance testing device.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a cable tensile performance testing device, which can solve the problem that cables are not easy to tighten during the fixing process.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides a cable tensile performance testing device, comprising: a workbench, a fixing mechanism, and a pulling mechanism;

[0008] A work rack is installed on the workbench;

[0009] The fixing mechanism is installed on the workbench. The fixing mechanism includes a pair of support plates. A fixing block is fixed on the support plates. A pressing block is slidably connected on the fixing block. Anti-slip pads are fixed on both the fixing block and the pressing block.

[0010] The pulling mechanism is mounted on a pair of support plates. The pulling mechanism includes a pair of mounting blocks. A baffle is fixed on the mounting block. A rotating shaft is rotatably connected between the mounting block and the baffle. A pressing wheel is fixed on the rotating shaft. A rotating block is fixed at one end of the rotating shaft.

[0011] In one or more embodiments of this utility model, the workbench includes a pair of lifting frames, which can support the lifting plate, and a lifting mechanism is installed inside the lifting frame. The lifting mechanism can drive the lifting plate to move up and down. A lifting plate is installed between the pair of lifting frames. The lifting plate is fixedly connected to the support plate. The lifting plate is used to support the support plate and can drive the support plate to move.

[0012] In one or more embodiments of this utility model, a fixing plate is fixed on each of the pair of support plates, and the fixing plate is used to support the threaded rod.

[0013] In one or more embodiments of this utility model, a threaded rod is threadedly connected to each of the pair of fixed plates. One end of the threaded rod is rotatably connected to the extrusion block. The threaded rod can rotate on the fixed plate, thereby pushing the extrusion block to move.

[0014] In one or more embodiments of this utility model, a rotating plate is fixed to the end of each pair of threaded rods away from the fixed plate. The rotating plate is used to support the control rod and can drive the threaded rod to rotate. A control rod is fixed on the rotating plate, and moving the control rod can drive the rotating plate to rotate.

[0015] In one or more embodiments of this utility model, a groove is chiseled on each of the pair of support plates. The sidewall of the groove is used to support the slider and to constrain the movement trajectory of the slider. A slider is slidably connected to the sidewall of the groove. The slider is fixedly connected to the extrusion block and is used to support the extrusion block.

[0016] In one or more embodiments of this utility model, a rotating wheel is fixed on each of the pair of rotating shafts. The rotating wheel is used to support the ratchet teeth and can drive the ratchet teeth to rotate. Multiple ratchet teeth are fixed on the rotating wheel and can be supported on the locking block, thereby fixing the rotating wheel.

[0017] In one or more embodiments of this utility model, each pair of mounting blocks is provided with a sliding cavity, the interior of which is used to place a sliding plate and a spring. A sliding plate is slidably connected to the side wall of the sliding cavity, the sliding plate can support the block and drive the block to move.

[0018] In one or more embodiments of this utility model, a locking block is fixed on each of the pair of sliding plates. The locking block can be supported on the ratchet teeth, thereby fixing the ratchet teeth. A spring is installed between the side of the locking block away from the sliding plate and the mounting block. The spring is used to push the sliding plate to move, thereby pushing the locking block to move.

[0019] In one or more embodiments of this utility model, a pressing plate is slidably connected to each pair of mounting blocks. The pressing plate is used to push the sliding plate to move. A limiting block is fixed on the pressing plate and is used to support the pressing plate on the limiting groove, thereby constraining the movement trajectory of the pressing plate. A limiting groove is also chiseled on each pair of mounting blocks. The limiting groove is used to place the limiting block and can constrain the movement trajectory of the limiting block.

[0020] Compared with the prior art, the cable tensile performance testing device of this utility model can pull both ends of the cable, so that the cable can be in a taut state during the fixing process, thereby reducing the deviation of the test results and obtaining accurate cable tensile performance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of a cable tensile performance testing device according to an embodiment of the present invention;

[0023] Figure 2 for Figure 1 The structural diagram shown at point A in the middle;

[0024] Figure 3 This is a cross-sectional view of a cable tensile performance testing device according to an embodiment of the present invention;

[0025] Figure 4 for Figure 3 The structural diagram shown at point B in the middle;

[0026] Figure 5 This is a partial structural cross-sectional view of a cable tensile performance testing device according to an embodiment of the present invention;

[0027] Figure 6 This is a partial cross-sectional view of the pulling structure in one embodiment of the present invention.

[0028] Explanation of key figure labels:

[0029] 1-Workbench, 101-Work Frame, 102-Lifting Frame, 103-Lifting Plate, 2-Fixing Mechanism, 201-Support Plate, 202-Fixing Block, 203-Extrusion Block, 204-Anti-slip Mat, 205-Fixing Plate, 206-Threaded Rod, 207-Rotating Plate, 208-Control Rod, 209-Slide Groove, 3-Pull Mechanism, 301-Mounting Block, 302-Baffle, 303-Rotating Shaft, 304-Extrusion Wheel, 305-Rotating Wheel, 306-Ratchet Tooth, 307-Slide Cavity, 308-Sliding Plate, 309-Clamping Block, 310-Spring, 311-Pressing Plate, 312-Limiting Block, 313-Limiting Groove, 314-Rotating Block. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0031] like Figures 1 to 6 As shown, a cable tensile performance testing device according to one embodiment of the present invention includes: a workbench 1, a fixing mechanism 2, and a pulling mechanism 3.

[0032] like Figure 1 As shown, the workbench 1 is used to support the lifting frame 102 and the support plate 201. The workbench 1 is equipped with a work frame 101, which can support the support plate 201 and drive the support plate 201 to move up and down.

[0033] like Figure 1 As shown, the workbench 1 includes a pair of lifting frames 102, which support the lifting plate 103. A lifting mechanism is installed inside each lifting frame 102, which can move the lifting plate 103 up and down. The lifting plate 103 is installed between the pair of lifting frames 102, and is fixedly connected to the support plate 201. The lifting plate 103 supports the support plate 201 and can move the support plate 201.

[0034] like Figures 1 to 4As shown, the fixing mechanism 2 is installed on the workbench 1. The fixing mechanism 2 includes a pair of support plates 201, which support the fixing block 202 and the fixing plate 205. The fixing block 202 is fixed on the support plate 201, and the fixing block 202 can support the cable. The pressing block 203 is slidably connected to the fixing block 202, and the pressing block 203 can press and fix the cable.

[0035] like Figures 1 to 4 As shown, anti-slip pads 204 are fixed on both the fixing block 202 and the pressing block 203. The anti-slip pads 204 can increase the friction between the fixing block 202, the pressing block 203 and the cable, making the cable less likely to fall off. Fixing plates 205 are fixed on both of the pair of support plates 201. The fixing plates 205 are used to support the threaded rod 206.

[0036] like Figure 2 As shown, a pair of fixed plates 205 are each threadedly connected to a threaded rod 206. One end of the threaded rod 206 is rotatably connected to the extrusion block 203. The threaded rod 206 can rotate on the fixed plate 205, thereby pushing the extrusion block 203 to move.

[0037] like Figure 2 As shown, a pair of threaded rods 206 have a rotating plate 207 fixed to the end away from the fixed plate 205. The rotating plate 207 supports the control rod 208 and can drive the threaded rods 206 to rotate. The control rod 208 is fixed on the rotating plate 207. Moving the control rod 208 can drive the rotating plate 207 to rotate.

[0038] like Figure 4 As shown, each of the pair of support plates 201 has a groove 209. The sidewall of the groove 209 is used to support the slider and constrain the movement trajectory of the slider. A slider is slidably connected to the sidewall of the groove 209, and the slider is fixedly connected to the extrusion block 203. The slider is used to support the extrusion block 203.

[0039] like Figure 5 As shown, the pulling mechanism 3 is mounted on a pair of support plates 201. The pulling mechanism 3 includes a pair of mounting blocks 301, which support the baffle 302 and the rotating shaft 303. The baffle 302 is fixed on the mounting block 301 and supports one end of the rotating shaft 303. The rotating shaft 303 is rotatably connected between the pair of mounting blocks 301 and the baffle 302. The rotating shaft 303 supports the extrusion wheel 304 and the rotating wheel 305 and can drive the extrusion wheel 304 and the rotating wheel 305 to rotate.

[0040] like Figure 5As shown, a pressing wheel 304 is fixed on the rotating shaft 303. The pressing wheel 304 can drive the cable to move during rotation, thereby keeping the cable in a taut state. A rotating block 314 is fixed to one end of the rotating shaft 303. Rotating the rotating block 314 can drive the rotating shaft 303 to rotate.

[0041] like Figure 6 As shown, each of the pair of rotating shafts 303 is also fixed with a rotating wheel 305. The rotating wheel 305 is used to support the ratchet teeth 306 and can drive the ratchet teeth 306 to rotate. Multiple ratchet teeth 306 are fixed on the rotating wheel 305. The ratchet teeth 306 can be supported on the locking block 309, thereby fixing the rotating wheel 305.

[0042] like Figures 5 to 6 As shown, each of the pair of mounting blocks 301 has a sliding cavity 307, which is used to house a sliding plate 308 and a spring 310. The sliding plate 308 is slidably connected to the side wall of the sliding cavity 307. The sliding plate 308 can support the locking block 309 and drive the locking block 309 to move.

[0043] like Figures 5 to 6 As shown, each of the pair of sliding plates 308 is fixed with a locking block 309. The locking block 309 can support the ratchet tooth 306, thereby fixing the ratchet tooth 306. A spring 310 is installed between the side of the locking block 309 away from the sliding plate 308 and the mounting block 301. The spring 310 is used to push the sliding plate 308 to move, thereby pushing the locking block 309 to move.

[0044] like Figures 5 to 6 As shown, each of the pair of mounting blocks 301 is slidably connected to a pressing plate 311, which is used to push the sliding plate 308 to move. A limiting block 312 is fixed to the pressing plate 311, and the limiting block 312 is used to support itself in a limiting groove 313, thereby constraining the movement trajectory of the pressing plate 311. Each of the pair of mounting blocks 301 also has a limiting groove 313, the interior of which is used to place the limiting block 312 and to constrain its movement trajectory.

[0045] In practical use, the two ends of the cable are placed between a pair of fixing blocks 202 and pressing blocks 203, and the pressing roller 304 can support the cable on the mounting block 301. Rotating the rotating block 314 can drive the rotating shaft 303 to rotate, thereby driving the pressing roller 304 and the rotating roller 305 to rotate.

[0046] During rotation, the extrusion roller 304 can push one end of the cable to move, thereby keeping the cable taut under tension. During rotation, the rotating roller 305 can drive the ratchet tooth 306 to rotate, and the ratchet tooth 306 can push the locking block 309, making it difficult for the locking block 309 to block the rotation of the ratchet tooth 306. When the rotating roller 305 drives the ratchet tooth 306 to rotate in the opposite direction, the ratchet tooth 306 can be supported on the locking block 309, thereby making it difficult for the rotating roller 305, extrusion roller 304 and rotating shaft 303 to rotate, so that the extrusion roller 304 can provide initial support for the cable.

[0047] The control lever 208 controls the rotation of the rotating plate 207 and the threaded rod 206. The threaded rod 206 can move on the fixed plate 205 by rotating, thereby pushing the pressing block 203 to move, so that the pressing block 203 and the fixed block 202 can fix one end of the cable.

[0048] Loosen the threaded rod 206 and the pressing block 203 so that the pressing block 203 and the fixing block 202 no longer fix the cable. Press the pressing plate 311, which can push the sliding plate 308 to move, thereby pushing the locking block 309 to move. This makes it difficult for the locking block 309 to support the ratchet tooth 306, causing the rotating shaft 303, the pressing wheel 304 and the rotating wheel 305 to rotate in opposite directions, thereby removing the cable.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for testing the tensile strength of cables, characterized in that, include: A workbench, on which a work rack is mounted; A fixing mechanism is installed on the workbench. The fixing mechanism includes a pair of support plates, a fixing block is fixed on the support plates, a pressing block is slidably connected on the fixing block, and anti-slip pads are fixed on both the fixing block and the pressing block. A pulling mechanism is mounted on a pair of support plates. The pulling mechanism includes a pair of mounting blocks, on which baffles are fixed. A rotating shaft is rotatably connected between the pair of mounting blocks and the baffles. A pressing wheel is fixed on the rotating shaft, and a rotating block is fixed at one end of the rotating shaft.

2. The cable tensile performance testing device according to claim 1, characterized in that, The workbench includes a pair of lifting frames, and a lifting plate is installed between the pair of lifting frames. The lifting plate is fixedly connected to the support plate.

3. The cable tensile performance testing device according to claim 1, characterized in that, Each of the pair of support plates is fixed with a fixing plate.

4. The cable tensile performance testing device according to claim 3, characterized in that, Each of the pair of fixed plates is threaded with a threaded rod, one end of which is rotatably connected to the extrusion block.

5. The cable tensile performance testing device according to claim 4, characterized in that, A rotating plate is fixed to the end of each of the threaded rods away from the fixed plate, and a control rod is fixed to the rotating plate.

6. The cable tensile performance testing device according to claim 1, characterized in that, Each of the pair of support plates has a groove, and a slider is slidably connected to the side wall of the groove. The slider is fixedly connected to the extrusion block.

7. The cable tensile performance testing device according to claim 1, characterized in that, Each of the two rotating shafts is also fixed with a rotating wheel, and the rotating wheel is fixed with multiple ratchet teeth.

8. The cable tensile performance testing device according to claim 1, characterized in that, Each of the mounting blocks has a sliding cavity, and a sliding plate is slidably connected to the side wall of the sliding cavity.

9. A cable tensile performance testing device according to claim 8, characterized in that, Each of the two sliding plates is fixed with a locking block, and a spring is installed between the side of the locking block away from the sliding plate and the mounting block.

10. A cable tensile performance testing device according to claim 1, characterized in that, Each pair of mounting blocks is slidably connected to a pressing plate, and a limit block is fixed on the pressing plate. Each pair of mounting blocks is also chiseled with a limit groove.

Images