A detection device for the tensile strength and flexural resistance of a high tensile and flexural resistance insulated cable

Abstract

The present invention relates to the technical field of cable manufacturing, and discloses a high-tensile-resistance and flexural-resistance insulated cable, comprising a base, the detection device comprising a first circular ring block, a first coil block, a second circular ring block and a moving component, the axial inner side of the cylinder is fixedly connected with a uniformly distributed first circular ring block, the axial inner side of the first circular ring block is fixedly connected with a uniformly distributed first coil block, the first coil block is fixedly connected with a second circular ring block about the axial inner side of the first circular ring block, and the axial inner side of the second circular ring block is provided with a moving component. The high-tensile-resistance and flexural-resistance insulated cable achieves the purpose of driving the inner cable to bend through the cooperation between the first coil block, the first magnetic block, the second circular ring block and the rotating ring, thereby achieving the effect of testing the flexural-resistance, and at the same time, by performing multiple-stage flexural windings on the cable, the limit data of the cable flexural-resistance can be efficiently obtained.

Description

Technical Field

[0001] The invention relates to the technical field of cable manufacturing, and in particular to a device for detecting the tensile strength and flexural resistance of a high-tensile-resistant and flexural-resistant insulated cable. Background Art

[0002] In the manufacturing process of insulated cables, the process starts with conductor processing, and insulation, shielding, cabling, sheathing, etc. are added layer by layer on the outer surface of the conductor to make wire and cable products. The more complex the product structure, the more superimposed layers there are, and the selection of materials for each component of the cable is directly related to the physical properties of the cable. Therefore, for the research and development of cables, test equipment is usually used to test the performance of the cable.

[0003] The existing cable testing devices mainly have the following technical defects: First, the traditional testing devices are mainly used to test the heat resistance and wear resistance of the cable, but cannot test the tensile strength and flexural resistance of the insulated cable, which makes it impossible to obtain the limit data of the tensile strength and flexural resistance of the cable, thereby hindering the research and development of high tensile and flexural resistance insulated cables; Second, if equipment is used to clamp the insulated cable for tensile resistance and flexural resistance testing, the traditional clamping device applies pressure on both sides of the cable, which will flatten the cable while clamping, making it impossible to simulate the natural bending of the cable, resulting in poor test results. Summary of the invention

[0004] The object of the present invention is to provide a device for detecting the tensile strength and flexural resistance of a high tensile and flexural resistance insulated cable, so as to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a detection device for the tensile resistance and flexural resistance of a high tensile and flexural resistance insulated cable, comprising a base, a cylinder is fixedly mounted on the upper side of the base, detection devices are evenly distributed on the axial inner side of the cylinder, the detection device is fixedly connected to the axial inner side wall of the cylinder, a fixing device and a placing device are fixedly connected to the axial inner side of the detection device, and a stretching device is fixedly connected between adjacent detection devices;

[0006] The detection device includes a first circular ring block, a first coil block, a second circular ring block and a motion component. The axial inner side of the cylinder is fixedly connected with a first circular ring block with uniform distribution, the axial inner side of the first circular ring block is fixedly connected with a first coil block with uniform distribution, the first coil block is fixedly connected with a second circular ring block on the axial inner side of the first circular ring block, and a motion component is arranged on the axial inner side of the second circular ring block.

[0007] Furthermore, the structure of the motion component includes a first magnetic block and a rotating ring. The first magnetic block is arranged on the axial inner side of the second circular ring block. The first magnetic block rotates along the axial inner side of the second circular ring block. The first magnetic block is fixedly connected to the rotating ring with respect to the axial inner side of the second circular ring block. The first magnetic block corresponds to the first coil block.

[0008] After the cable is clamped and fixed, a current with a continuously changing direction is passed through the interior of the first coil block, so that the current passing through the first coil block generates a magnetic field force that drives the first magnetic block to rotate clockwise around the second circular ring block. On the adjacent rotating ring, a current with a continuously changing direction is passed through the corresponding first coil block, so that the current passing through the first coil block generates a magnetic field force that drives the first magnetic block to rotate counterclockwise around the second circular ring block, thereby achieving the purpose of driving the inner cable to bend, thereby achieving the effect of testing the bending resistance.

[0009] Furthermore, the fixing device includes an electric telescopic rod, a fixed block, a second magnetic block, a conical block and a control device, the electric telescopic rod is fixedly connected to the axial inner side of the rotating ring, the lower side of the electric telescopic rod is fixedly connected to the fixed block, the left and right sides of the fixed block are fixedly connected to the second magnetic blocks, the lower side of the fixed block is fixedly connected to evenly distributed conical blocks, and the control device is fixedly installed on the upper side of the fixed block and on the left and right sides of the electric telescopic rod.

[0010] Furthermore, the structure of the control device includes a cylinder, a first contact, a second contact, a partition, a first spring and a pushing block, the cylinder is fixedly connected to the upper side of the fixed block and on the left and right sides of the electric telescopic rod, the first contact is fixedly connected to the inner upper side wall of the cylinder, the second contact is provided on the lower side of the first contact, the pushing block is fixedly connected to the lower side of the second contact, the partition is fixedly connected to the inner side of the cylinder, and the first spring is sleeved on the axial outer side of the pushing block.

[0011] Furthermore, the stretching device includes a second coil block and a magnetic rod, the second coil block is fixedly connected to the outer side of the first annular block, the magnetic rod is fixedly connected to the cylinder, and a slide groove corresponding to the second coil block is opened on the cylinder.

[0012] When it is necessary to test the tensile resistance, current is passed through the second coil block, so that the second coil block generates a magnetic force that repels the magnetic rod after the current is passed through, thereby pushing the magnetic rod away from the second coil block along the slide groove opened on the cylinder, and then the magnetic rod drives the first circular ring block fixedly connected to it to move synchronously, thereby achieving the stretching of the inner cable, thereby achieving the effect of testing the tensile resistance of the cable, and at the same time achieving multi-segment stretching of the cable, thereby improving the test effect.

[0013] Furthermore, the placement device includes a fixed rod and a third coil block. The fixed rod is fixedly connected to the axial inner side of the rotating ring and on the lower side of the fixed block. The third coil blocks are fixedly connected to the left and right sides of the fixed rod. The third coil block corresponds to the second magnetic block.

[0014] The insulated cable to be tested is placed on the concave arc surface on the upper side of the fixed rod. At this time, the electric telescopic rod is started to drive the fixed block to move downward. When the fixed block contacts the cable on the lower side, the electric telescopic rod continues to move downward, and the cable squeezes the fixed block in the opposite direction. Since the interior of the fixed block is filled with electrorheological solution, after the fixed block is squeezed, the electrorheological solution is pressed by the pressure to push the push block to compress the first spring, so that the second contact slides upward inside the cylinder. When the second contact slides to contact the first contact, since the first contact, the second contact, the electric telescopic rod and the third coil block are electrically connected, the electric telescopic rod stops moving at this time, and at the same time, current is passed into the interior of the third coil block. After the current is passed into the third coil block, a magnetic force that attracts the second magnetic block is generated, and then the second magnetic block drives the fixed block to bend to wrap the cable in a circle. After the circular wrapping, a strong current is passed into the electrorheological solution inside the fixed block. The electrorheological solution will become solid after the strong current is passed, so that the fixed block is solidified, thereby achieving the purpose of circular wrapping and fixing the cable.

[0015] Since the lower side of the fixing block is fixedly connected with the evenly distributed conical blocks, the conical blocks and the cables are clamped in a circular contact, thereby further improving the clamping effect on the cables.

[0016] Furthermore, the fixing block is made of rubber material, and the inner side of the fixing block is filled with electrorheological solution.

[0017] Furthermore, the second contact slides on the inner side of the cylinder, the second contact penetrates the partition, and the cylinder is in a communicating state with the fixed block.

[0018] Compared with the prior art, the present invention provides a detection device for the tensile strength and flexural resistance of a high tensile and flexural resistance insulated cable, which has the following beneficial effects:

[0019] 1. The high tensile and flexural resistance insulated cable achieves the purpose of circular wrapping and fixing the cable through the cooperation between the fixing rod, the electric telescopic rod, the fixing block, the pushing block, the first spring, the second contact, the first contact, the third coil block, the second magnetic block and the conical block, so that the conical block and the cable are in circular contact and clamped, thereby further improving the clamping effect of the cable, thereby solving the problem that if equipment is used to test the tensile resistance and flexural resistance of the insulated cable clamping, the traditional clamping device adopts a method of applying pressure on both sides of the cable, which will flatten the cable while clamping, and thus cannot simulate the natural bending of the cable, resulting in poor test results.

[0020] 2. The high tensile and flexural resistance insulated cable achieves the purpose of driving the inner cable to bend through the cooperation between the first coil block, the first magnetic block, the second circular ring block and the rotating ring, thereby achieving the effect of testing the bending resistance. At the same time, by bending the cable in multiple sections, the limit data of the cable's bending resistance can be efficiently obtained.

[0021] 3. The high tensile and flexural resistance insulated cable realizes the stretching of the inner cable through the cooperation between the second coil block and the magnetic rod, thereby achieving the effect of testing the tensile resistance of the cable, and at the same time realizes multi-segment stretching of the cable, thereby improving the test effect.

[0022] 4. The high tensile and flexural resistance insulated cable solves the problem that the traditional testing equipment mainly tests the heat resistance and wear resistance of the cable, but cannot test the tensile resistance and flexural resistance of the insulated cable, which makes it impossible to obtain the limit data of the tensile resistance and flexural resistance of the cable, thus hindering the research and development of high tensile and flexural resistance insulated cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the cutaway three-dimensional structure of the cylinder of the present invention;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the detection device of the present invention;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the placement device of the present invention;

[0027] Figure 5 It is a schematic diagram of the cutaway three-dimensional structure of the fixing block of the present invention;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the conical block of the present invention;

[0029] Figure 7 For the present invention Figure 2 The enlarged schematic diagram of point A in the middle;

[0030] Figure 8 For the present invention Figure 5 A magnified schematic diagram of point B in the middle.

[0031] In the figure: 1. base; 2. cylinder; 3. detection device; 31. first circular ring block; 32. first coil block; 33. second circular ring block; 34. moving component; 341. first magnetic block; 342. rotating ring; 4. fixing device; 41. electric telescopic rod; 42. fixing block; 43. second magnetic block; 44. conical block; 45. control device; 451. cylinder; 452. first contact; 453. second contact; 454. partition; 455. first spring; 456. pushing block; 5. stretching device; 51. second coil block; 52. magnetic rod; 6. placing device; 61. fixing rod; 62. third coil block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0033] See also Figure 1-Figure 8 , a detection device for the tensile resistance and flexural resistance of a high tensile and flexural resistance insulated cable, comprising a base 1, a cylinder 2 is fixedly mounted on the upper side of the base 1, detection devices 3 are evenly distributed on the axial inner side of the cylinder 2, the detection devices 3 are fixedly connected to the axial inner side wall of the cylinder 2, a fixing device 4 and a placing device 6 are fixedly connected to the axial inner side of the detection device 3, and a stretching device 5 is fixedly connected between adjacent detection devices 3;

[0034] The detection device 3 includes a first circular ring block 31, a first coil block 32, a second circular ring block 33 and a motion component 34. The axial inner side of the cylinder 2 is fixedly connected with a first circular ring block 31 that is evenly distributed, the axial inner side of the first circular ring block 31 is fixedly connected with a first coil block 32 that is evenly distributed, the first coil block 32 is fixedly connected with a second circular ring block 33 on the axial inner side of the first circular ring block 31, and the motion component 34 is arranged on the axial inner side of the second circular ring block 33.

[0035] Furthermore, the structure of the moving component 34 includes a first magnetic block 341 and a rotating ring 342. The first magnetic block 341 is arranged on the axial inner side of the second circular ring block 33. The first magnetic block 341 rotates along the axial inner side of the second circular ring block 33. The first magnetic block 341 is fixedly connected with the rotating ring 342 on the axial inner side of the second circular ring block 33. The first magnetic block 341 corresponds to the first coil block 32.

[0036] After the cable is clamped and fixed, a current with a continuously changing direction is passed through the interior of the first coil block 32, so that the first coil block 32 is passed with current to generate a magnetic field force that drives the first magnetic block 341 to rotate clockwise around the second circular ring block 33, while on the adjacent rotating ring 342, a current with a continuously changing direction is passed through the corresponding first coil block 32, so that the first coil block 32 is passed with current to generate a magnetic field force that drives the first magnetic block 341 to rotate counterclockwise around the second circular ring block 33, thereby achieving the purpose of driving the inner cable to bend, thereby achieving the effect of testing the bending resistance.

[0037] Furthermore, the fixing device 4 includes an electric telescopic rod 41, a fixing block 42, a second magnetic block 43, a conical block 44 and a control device 45. The electric telescopic rod 41 is fixedly connected to the axial inner side of the rotating ring 342, the fixing block 42 is fixedly connected to the lower side of the electric telescopic rod 41, the second magnetic block 43 is fixedly connected to the left and right sides of the fixing block 42, the lower side of the fixing block 42 is fixedly connected to the evenly distributed conical blocks 44, and the control device 45 is fixedly installed on the upper side of the fixing block 42 and on the left and right sides of the electric telescopic rod 41.

[0038] Furthermore, the structure of the control device 45 includes a cylinder 451, a first contact 452, a second contact 453, a partition 454, a first spring 455 and a pushing block 456. The cylinder 451 is fixedly connected to the upper side of the fixed block 42 and on the left and right sides of the electric telescopic rod 41. The first contact 452 is fixedly connected to the inner upper side wall of the cylinder 451, the second contact 453 is provided on the lower side of the first contact 452, the pushing block 456 is fixedly connected to the lower side of the second contact 453, the partition 454 is fixedly connected to the inner side of the cylinder 451, and the first spring 455 is sleeved on the axial outer side of the pushing block 456.

[0039] Furthermore, the stretching device 5 includes a second coil block 51 and a magnetic rod 52 . The second coil block 51 is fixedly connected to the outer side of the first annular block 31 . The magnetic rod 52 is fixedly connected to the cylinder 2 . A slide groove corresponding to the second coil block 51 is provided on the cylinder 2 .

[0040] When it is necessary to test the tensile resistance, current is passed through the second coil block 51, so that after the current is passed through the second coil block 51, a magnetic force that repels the magnetic rod 52 is generated, thereby pushing the magnetic rod 52 away from the second coil block 51 along the slide groove opened on the cylinder 2, and then the magnetic rod 52 drives the first circular block 31 fixedly connected to it to move synchronously, thereby achieving the stretching of the inner cable, thereby achieving the effect of testing the tensile resistance of the cable, and at the same time achieving multi-segment stretching of the cable, thereby improving the test effect.

[0041] Furthermore, the placement device 6 includes a fixed rod 61 and a third coil block 62. The fixed rod 61 is fixedly connected to the axial inner side of the rotating ring 342 and on the lower side of the fixed block 42. The third coil block 62 is fixedly connected to both the left and right sides of the fixed rod 61. The third coil block 62 corresponds to the second magnetic block 43.

[0042] The insulated cable to be tested is placed on the concave arc surface on the upper side of the fixing rod 61. At this time, the electric telescopic rod 41 is started to drive the fixing block 42 to move downward. When the fixing block 42 contacts the cable on the lower side, the electric telescopic rod 41 continues to move downward, and the cable reversely squeezes the fixing block 42. Since the interior of the fixing block 42 is filled with electrorheological solution, after the fixing block 42 is squeezed, the electrorheological solution is pressed by the pressure to push the pushing block 456 to compress the first spring 455, so that the second contact 453 slides upward inside the cylinder 451. When the second contact 453 slides to contact the first contact 452, due to the first The contact 452 and the second contact 453 are electrically connected to the electric telescopic rod 41 and the third coil block 62. At this time, the electric telescopic rod 41 stops moving, and current is passed into the third coil block 62. After the current is passed into the third coil block 62, a magnetic force is generated that attracts the second magnetic block 43. Then the second magnetic block 43 drives the fixed block 42 to bend and roundly wrap the cable. After the round wrapping, a strong current is passed into the electrorheological solution inside the fixed block 42. The electrorheological solution will become solid after the strong current is passed, so that the fixed block 42 is solidified, thereby achieving the purpose of round wrapping and fixing the cable.

[0043] Since the evenly distributed conical blocks 44 are fixedly connected to the lower side of the fixing block 42, the conical blocks 44 and the cables are clamped in a circular contact, thereby further improving the clamping effect on the cables.

[0044] Furthermore, the fixing block 42 is made of rubber material, and the inner side of the fixing block 42 is filled with electrorheological solution.

[0045] Furthermore, the second contact 453 slides on the inner side of the cylinder 451 , and the second contact 453 penetrates the partition 454 , so that the cylinder 451 and the fixing block 42 are in a communicating state.

[0046] The specific usage and function of this embodiment are as follows:

[0047] When in use, first place the insulated cable to be tested on the concave arc surface on the upper side of the fixing rod 61, then start the electric telescopic rod 41 to drive the fixing block 42 to move downward, and when the fixing block 42 contacts the cable on the lower side, the electric telescopic rod 41 continues to move downward, and the cable reversely squeezes the fixing block 42. Since the interior of the fixing block 42 is filled with electrorheological solution, after the fixing block 42 is squeezed, the electrorheological solution is pressed by the pressure to push the pushing block 456 to compress the first spring 455, so that the second contact 453 slides upward inside the cylinder 451. When the second contact 453 slides to contact the first contact 452, the fixing block 42 is pressed by the electrorheological solution. The first contact 452, the second contact 453, the electric telescopic rod 41 and the third coil block 62 are electrically connected. At this time, the electric telescopic rod 41 stops moving, and current is passed into the third coil block 62. After the current is passed into the third coil block 62, a magnetic force is generated to attract the second magnetic block 43. Then the second magnetic block 43 drives the fixed block 42 to bend and roundly wrap the cable. After the round wrapping, a strong current is passed into the electrorheological solution inside the fixed block 42. The electrorheological solution will become solid after the strong current is passed, so that the fixed block 42 is solidified, thereby achieving the purpose of round wrapping and fixing the cable.

[0048] Furthermore, since the evenly distributed conical blocks 44 are fixedly connected to the lower side of the fixing block 42, the conical blocks 44 and the cables are clamped in a circular contact manner, thereby further improving the clamping effect on the cables.

[0049] Furthermore, after the cable is clamped and fixed, a current with a continuously changing direction is passed through the interior of the first coil block 32, so that the current passing through the first coil block 32 generates a magnetic field force that drives the first magnetic block 341 to rotate clockwise around the second circular ring block 33, while on the adjacent rotating ring 342, a current with a continuously changing direction is passed through the corresponding first coil block 32, so that the current passing through the first coil block 32 generates a magnetic field force that drives the first magnetic block 341 to rotate counterclockwise around the second circular ring block 33, thereby achieving the purpose of driving the inner cable to bend, thereby achieving the effect of testing the bending resistance.

[0050] Furthermore, when it is necessary to test the tensile resistance, current is passed through the second coil block 51, so that after the current is passed through the second coil block 51, a magnetic force that repels the magnetic rod 52 is generated, thereby pushing the magnetic rod 52 away from the second coil block 51 along the slide groove opened on the cylinder 2, and then the magnetic rod 52 drives the first circular ring block 31 fixedly connected to it to move synchronously, thereby achieving the stretching of the inner cable, thereby achieving the effect of testing the tensile resistance of the cable, and at the same time achieving multi-segment stretching of the cable, thereby improving the test effect.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the tensile strength and flexural resistance of a high tensile and flexural resistance insulated cable, comprising a base (1), characterized in that: A cylinder (2) is fixedly mounted on the upper side of the base (1); detection devices (3) are evenly distributed on the axial inner side of the cylinder (2); the detection devices (3) are fixedly connected to the axial inner side wall of the cylinder (2); a fixing device (4) and a placing device (6) are fixedly connected to the axial inner side of the detection device (3); and a stretching device (5) is fixedly connected between adjacent detection devices (3); The detection device (3) comprises a first circular ring block (31), a first coil block (32), a second circular ring block (33) and a motion component (34); the cylinder (2) is fixedly connected to the axial inner side of the cylinder (2) with a uniform distribution of the first circular ring block (31); the axial inner side of the first circular ring block (31) is fixedly connected to the axial inner side of the first coil block (32); the first coil block (32) is fixedly connected to the axial inner side of the first circular ring block (31) with a second circular ring block (33); and the motion component (34) is arranged on the axial inner side of the second circular ring block (33); The stretching device (5) comprises a second coil block (51) and a magnetic rod (52); the second coil block (51) is fixedly connected to the outer side of the first annular block (31); the magnetic rod (52) is fixedly connected to the cylinder (2); and a slide groove corresponding to the second coil block (51) is provided on the cylinder (2).

2. The device for detecting the tensile strength and flexural resistance of a high tensile and flexural resistance insulated cable according to claim 1, characterized in that: The structure of the motion component (34) comprises a first magnetic block (341) and a rotating ring (342); the first magnetic block (341) is arranged on the axial inner side of the second circular ring block (33); the first magnetic block (341) rotates along the axial inner side of the second circular ring block (33); the first magnetic block (341) is fixedly connected with the rotating ring (342) on the axial inner side of the second circular ring block (33); the first magnetic block (341) corresponds to the first coil block (32).

3. The device for detecting the tensile strength and flexural resistance of a high tensile strength and flexural resistance insulated cable according to claim 2, characterized in that: The fixing device (4) comprises an electric telescopic rod (41), a fixing block (42), a second magnetic block (43), a conical block (44) and a control device (45); the electric telescopic rod (41) is fixedly connected to the axial inner side of the rotating ring (342); the fixing block (42) is fixedly connected to the lower side of the electric telescopic rod (41); the second magnetic block (43) is fixedly connected to the left and right sides of the fixing block (42); the conical blocks (44) are evenly distributed and fixedly connected to the lower side of the fixing block (42); and the control device (45) is fixedly installed on the upper side of the fixing block (42) and on the left and right sides of the electric telescopic rod (41).

4. The device for detecting the tensile strength and flexural resistance of a high tensile strength and flexural resistance insulated cable according to claim 3, characterized in that: The structure of the control device (45) comprises a cylinder (451), a first contact (452), a second contact (453), a partition (454), a first spring (455) and a pushing block (456); the cylinder (451) is fixedly connected to the upper side of the fixed block (42) and to both the left and right sides of the electric telescopic rod (41); the first contact (452) is fixedly connected to the inner upper side wall of the cylinder (451); the second contact (453) is arranged on the lower side of the first contact (452); the pushing block (456) is fixedly connected to the lower side of the second contact (453); the partition (454) is fixedly connected to the inner side of the cylinder (451); and the first spring (455) is sleeved on the axial outer side of the pushing block (456).

5. The device for detecting the tensile strength and flexural resistance of a high tensile strength and flexural resistance insulated cable according to claim 3, characterized in that: The placement device (6) comprises a fixed rod (61) and a third coil block (62); the fixed rod (61) is fixedly connected to the axial inner side of the rotating ring (342) and on the lower side of the fixed block (42); the third coil block (62) is fixedly connected to both the left and right sides of the fixed rod (61); and the third coil block (62) corresponds to the second magnetic block (43).

6. The device for detecting the tensile strength and flexural resistance of a high tensile strength and flexural resistance insulated cable according to claim 3, characterized in that: The fixing block (42) is made of rubber material, and the inner side of the fixing block (42) is filled with electrorheological solution.

7. The device for detecting the tensile strength and flexural resistance of a high tensile strength and flexural resistance insulated cable according to claim 4, characterized in that: The second contact (453) slides inside the cylinder (451), the second contact (453) penetrates the partition (454), and the cylinder (451) and the fixed block (42) are in a communicating state.

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