CN112665968A - Tension detection device for power cable - Google Patents
Tension detection device for power cable Download PDFInfo
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- CN112665968A CN112665968A CN202011624941.4A CN202011624941A CN112665968A CN 112665968 A CN112665968 A CN 112665968A CN 202011624941 A CN202011624941 A CN 202011624941A CN 112665968 A CN112665968 A CN 112665968A
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- 238000009434 installation Methods 0.000 claims abstract description 5
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- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 description 4
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Abstract
The invention belongs to the technical field of electric power cable detection equipment, and particularly relates to a tension detection device for an electric power cable, which comprises a first bracket, a first motor, a first mounting seat, a second mounting seat, a first fixing assembly, a second fixing assembly and a third fixing assembly; the second mounting seat is movably mounted on the first support and is positioned above the first mounting seat; one end of an output shaft of the first motor is in transmission connection with the second mounting seat; the first mounting seat and the second mounting seat are identical in structure and are symmetrically arranged; the first fixing component is movably clamped in the first mounting seat, and the second fixing component is rotatably mounted in the first mounting seat and is positioned in the first fixing component; the third fixing component is elastically installed in the first installation seat and located below the first fixing component, and therefore the experiment result is prevented from being influenced by damage of the sample caused by clamping.
Description
Technical Field
The invention belongs to the technical field of electric power cable detection equipment, and particularly relates to a tension detection device for an electric power cable.
Background
The tensile load borne by the power cable is an important index related to the safety of the electric line. When a power transmission line is disturbed by strong wind or tensile load is increased due to the influence of ice and snow attached to the line, the tensile load may exceed the maximum value of the tensile force borne by the cable, the cable may be broken, the rod may be damaged or collapsed due to unbalanced tensile force borne by the two ends of the power rod, and the installation distance between the two power rods needs to be determined by calculating the tensile force of the cable in the installation process.
When the conventional tension detection device for the power cable detects a sample, two ends of the sample are fixed by using clamps, and then the two groups of clamps are far away until the sample is broken, so that the tension is measured; however, this method has a drawback that the portion pressed by the clamps is broken under the pressure of the clamps, so that when the two sets of clamps are far apart, the sample is broken from the broken portion, which affects the experimental result.
Disclosure of Invention
In order to solve the above problems, the present invention provides a tension detection device for an electric power cable, including a first bracket, a first motor, a first mounting seat, a second mounting seat, a first fixing component, a second fixing component and a third fixing component;
the first mounting seat is fixedly mounted at the lower end of the first support, and the second mounting seat is movably mounted on the first support and positioned above the first mounting seat;
one end of the body of the first motor is fixedly arranged at the top of the first support, and one end of the output shaft of the first motor is in transmission connection with the second mounting seat;
the first mounting seat and the second mounting seat are identical in structure and are symmetrically arranged; the first fixing component is movably clamped in the first mounting seat, and the second fixing component is rotatably mounted in the first mounting seat and is positioned in the first fixing component;
the third fixing component is elastically installed in the first installation seat and is positioned below the first fixing component.
Further, the first bracket comprises a first connecting plate, a second connecting plate, a third connecting plate and a first mounting plate;
two ends of the second connecting plate are respectively and fixedly connected with the first connecting plate and the third connecting plate; the first connecting plate and the third connecting plate are positioned on the same side of the second connecting plate, and the first connecting plate is positioned below the third connecting plate;
a first screw rod is further arranged between the first connecting plate and the third connecting plate, and the first motor is in transmission connection with the first screw rod; a second mounting plate is fixedly mounted on the first connecting plate and is fixedly connected with the first mounting seat; one end of the first screw rod is rotatably connected with the second mounting plate, and the other end of the first screw rod is rotatably connected with the third connecting plate;
the first screw rod is also movably clamped with a first mounting plate, and the first mounting plate is fixedly connected with the second mounting seat; the first mounting plate is internally in threaded connection with the first screw rod through internal threads.
Further, the first mounting seat comprises a fourth connecting plate, a fifth connecting plate and a sixth connecting plate;
one end of each of the two groups of fourth connecting plates is fixedly connected with two ends of the corresponding fifth connecting plate, a first rail, a second rail and a third rail are arranged at the upper end of each fourth connecting plate, the first rail and the second rail are located on the same side of the third rail, and the first rail and the second rail are located on the same straight line and are parallel to the third rail;
the first fixing component is movably clamped on the first rail, the second rail and the third rail; the lower end of the first track, the upper end of the second track and the two ends of the third track are provided with baffle plates;
the second fixing component is arranged in a gap arranged between the first rail and the second rail;
the sixth connecting plate covers the lower ends of the fourth connecting plate and the fifth connecting plate and is fixedly connected with the first connecting plate; the third fixing component is elastically connected with the sixth connecting plate.
Further, the first fixing assembly comprises a first fixing plate, a second screw rod and a second fixing plate;
the second fixing plate and the first fixing plate are the same in structure and equal in size; two groups of first sliding grooves are respectively formed in two ends of the first fixing plate, and the first sliding grooves of the two groups of first fixing plates are movably clamped on the second rail and the third rail respectively; two ends of the second fixing plate are also respectively provided with two groups of first sliding grooves, and the two groups of first sliding grooves of the second fixing plate are respectively movably clamped on the first rail and the third rail.
Furthermore, the center positions of the first fixing plate and the second fixing plate are respectively provided with a through hole, and the through holes penetrate through the first fixing plate and the second fixing plate;
two groups of first threaded holes are respectively formed in the first fixing plate and the second fixing plate, and the second screw rod movably penetrates through the first threaded holes and is in threaded connection with the first threaded holes;
a second motor is further arranged on one side, far away from the first fixing plate, of the second fixing plate, and one end of a body of the second motor is fixedly connected with the second fixing plate; one end of an output shaft of the second motor is in transmission connection with the second screw rod.
Furthermore, the second fixing assembly comprises a third motor, a first connecting rod, a third fixing plate, a second connecting rod, a fourth fixing plate, a fourth motor and a third screw rod;
one end of the body of the third motor is fixedly arranged in a gap between the first rail and the second rail; one end of an output shaft of the third motor is in transmission connection with one end of the first connecting rod;
the other end of the first connecting rod is fixedly connected with one end of the third fixing plate, and the other end of the third fixing plate is fixedly connected with one end of the second connecting rod; the other end of the second connecting rod is in transmission connection with the fourth connecting plate;
two groups of second threaded holes are formed in the fourth fixing plate and the third fixing plate; the third screw rod movably penetrates through the second threaded hole and is in threaded connection with the second threaded hole; one end of the body of the fourth motor is fixedly arranged on one side, far away from the fourth fixing plate, of the third fixing plate, and one end of the output shaft of the fourth motor is in transmission connection with the third screw rod.
Further, the third fixing component comprises a first fixing ring, a connecting ring, a first spring and a first clamping component;
one end of the first spring is elastically connected with the sixth connecting plate, and the other end of the first spring is elastically connected with one end of the connecting ring;
the other end of the connecting ring is fixedly connected with the first fixing ring; a plurality of groups of first clamping holes are formed in the first fixing ring at equal intervals, and the first clamping assembly is movably clamped in the first clamping holes; and a second clamping assembly is also arranged in the first clamping assembly.
Furthermore, the first clamping assembly comprises a first connecting body, four groups of third connecting rods and a plurality of groups of second clamping blocks;
the four groups of one ends of the third connecting rods are respectively and fixedly arranged at the lower end of the first connecting body, a plurality of groups of second clamping blocks are further arranged on the third connecting rods, the cross sections of the second clamping blocks are right-angled triangles, and the inclined sides of the right-angled triangles and the included angles formed by the third connecting rods are acute angles.
Furthermore, the second clamping assembly comprises a second connector, a fourth connecting rod and a third clamping block;
one end of each of the four groups of fourth connecting rods is elastically connected to the lower end of the second connecting body, the second connecting body and the four groups of fourth connecting rods form an elastic sheet, a third clamping block is further arranged on each fourth connecting rod, and the third clamping block penetrates through the third connecting rods.
Furthermore, two side walls of the first clamping hole are also provided with first clamping grooves;
a first clamping block and a second spring are further arranged in the first clamping groove, and one end of the first clamping block is elastically connected with the groove bottom of the first clamping groove through the second spring; the other end of the first fixture block is clamped between the upper and lower groups of second fixture blocks; the other end of the first clamping block is an inclined plane and is parallel to the inclined plane of the second clamping block.
The invention has the beneficial effects that:
1. through first orbital lower extreme the orbital upper end of second with the orbital both ends of third all set up the separation blade, work as during the second motor reversal, first fixed plate is kept away from the second fixed plate, until first fixed plate with the separation blade of second track upper end is contradicted under the support of separation blade, the second fixed plate begins to keeping away from the direction motion of first fixed plate, until the second fixed plate with the separation blade of first track lower extreme is contradicted, makes the fixed subassembly reconversion of second.
2. The third motor is positively rotated to wind the power cable sample on the third fixing plate and the fourth fixing plate, and then the second motor is positively rotated to clamp the power cable sample on the outer surfaces of the third fixing plate and the fourth fixing plate by the first fixing plate and the second fixing plate, so that the clamping stress area of the sample is increased, and the experimental result is prevented from being influenced by the damage of the sample caused by clamping.
3. When one end of the power cable sample is inserted into the first fixing ring, the first spring is arranged, so that the power cable sample does not depart from the detection device when being contracted.
4. When the third fixture block is not pressed, the fourth connecting rod is expanded, the first fixture block is clamped between the two groups of second fixture blocks, and the second fixture blocks can only move downwards at the moment; when the third clamping block is pressed, the fourth connecting rod is gathered, and the second clamping block is separated from the clamping range of the first clamping block, so that the third connecting rod can be separated from the first clamping hole.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a detection apparatus according to an embodiment of the present invention;
FIG. 2 shows a schematic structural view of a first bracket of an embodiment of the present invention;
FIG. 3 illustrates a schematic structural view of a first mount of an embodiment of the present invention;
FIG. 4 illustrates a schematic structural view of a first securing assembly of an embodiment of the present invention;
FIG. 5 shows a schematic structural view of a second securing assembly of an embodiment of the invention;
FIG. 6 illustrates a schematic structural view of a third fixing assembly of the embodiment of the present invention;
FIG. 7 is a schematic diagram of a first clamping assembly according to an embodiment of the invention;
FIG. 8 is a schematic diagram of a second clamping assembly according to an embodiment of the invention;
fig. 9 is a schematic sectional view showing a first fixing ring according to an embodiment of the present invention.
In the figure: 1. a first bracket; 11. a first connecting plate; 12. a second connecting plate; 13. a third connecting plate; 14. a first lead screw; 15. a first mounting plate; 16. a second mounting plate; 2. a first motor; 3. a first mounting seat; 31. a fourth connecting plate; 32. a fifth connecting plate; 33. a sixth connecting plate; 34. a first track; 35. a second track; 36. a third track; 37. a baffle plate; 4. a second mounting seat; 5. a first fixed component; 51. a first fixing plate; 52. a first chute; 53. a through hole; 54. a second lead screw; 55. a second motor; 56. a first threaded hole; 57. a second fixing plate; 6. a second fixed component; 61. a third motor; 62. a first connecting rod; 63. a third fixing plate; 64. a second connecting rod; 65. a fourth fixing plate; 66. a fourth motor; 67. a third screw rod; 68. a second threaded hole; 7. a third fixed component; 71. a first retaining ring; 711. a first card slot; 712. a first clamping block; 713. a second spring; 72. a connecting ring; 73. a first spring; 74. a first clamping assembly; 741. a first connecting body; 742. a third connecting rod; 743. a second fixture block; 75. a first clamping hole; 76. a second clamping assembly; 761. a second connector; 762. a fourth connecting rod; 763. and a third clamping block.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The embodiment of the invention provides a tension detection device for a power cable, which comprises a first bracket 1, a first motor 2, a first mounting seat 3, a second mounting seat 4, a first fixing component 5, a second fixing component 6 and a third fixing component 7, and is exemplarily shown in fig. 1.
The first mounting seat 3 is fixedly mounted at the lower end of the first support 1, and the second mounting seat 4 is movably mounted on the first support 1 and is positioned above the first mounting seat 3;
one end of the body of the first motor 2 is fixedly arranged at the top of the first support 1, and one end of the output shaft of the first motor 2 is in transmission connection with the second mounting seat 4.
The first mounting seat 3 and the second mounting seat 4 are identical in structure and are symmetrically arranged. Here, a specific configuration of the first mount 3 and the second mount 4 will be described by taking the first mount 3 as an example. The first fixing component 5 is movably clamped in the first mounting seat 3, and the second fixing component 6 is rotatably mounted in the first mounting seat 3 and is positioned in the first fixing component 5; the first fixing assembly 5 and the second fixing assembly 6 are used for fixing a power cable sample, and the sample is prevented from falling off.
The third fixing component 7 is elastically installed in the first installation seat 3 and located below the first fixing component 5, and the third fixing component 7 is used for fixing one end of a power cable sample.
Exemplarily, two ends of a power cable sample respectively penetrate through two groups of first fixing assemblies 5 and two groups of second fixing assemblies 6, and are respectively fixedly connected with two groups of third fixing assemblies 7, and then the second mounting base 4 is moved on the first support 1 along the vertical direction by starting the first motor 2, so as to perform a tension test on the power cable sample.
The first bracket 1 includes a first connecting plate 11, a second connecting plate 12, a third connecting plate 13, and a first mounting plate 15, as shown in fig. 2 for example.
Two ends of the second connecting plate 12 are respectively fixedly connected with the first connecting plate 11 and the third connecting plate 13. The first connecting plate 11 and the third connecting plate 13 are located on the same side of the second connecting plate 12, and the first connecting plate 11 is located below the third connecting plate 13.
A first screw rod 14 is further arranged between the first connecting plate 11 and the third connecting plate 13, and the first motor 2 is in transmission connection with the first screw rod 14; and a second mounting plate 16 is fixedly mounted on the first connecting plate 11, and the second mounting plate 16 is fixedly connected with the first mounting seat 3. One end of the first screw 14 is rotatably connected to the second mounting plate 16, and the other end of the first screw 14 is rotatably connected to the third connecting plate 13.
A first mounting plate 15 is movably clamped on the first screw rod 14, and the first mounting plate 15 is fixedly connected with the second mounting base 4; the first mounting plate 15 is connected with the first lead screw 14 through internal threads, and moves along the direction of the first lead screw 14 under the rotation of the first lead screw 14.
Illustratively, the first mounting plate 15 is moved in the direction of the first lead screw 14 by activating the first motor 2 to rotate the first lead screw 14.
The first mounting seat 3 and the second mounting seat 4 are identical in structure and are symmetrically arranged. For avoiding redundancy, only the first mounting seat 3 is taken as an example here.
The first mounting seat 3 includes a fourth connecting plate 31, a fifth connecting plate 32 and a sixth connecting plate 33, as shown in fig. 3 for example.
Two sets of the one end of fourth connecting plate 31 respectively with the both ends fixed connection of fifth connecting plate 32, the upper end of fourth connecting plate 31 is provided with first track 34, second track 35 and third track 36, first track 34 with second track 35 is located same one side of third track 36, first track 34 with second track 35 is located same straight line, and with third track 36 is parallel.
The first fixing component 5 is movably clamped on the first rail 34, the second rail 35 and the third rail 36; the lower end of the first rail 34, the upper end of the second rail 35 and the two ends of the third rail 36 are provided with a blocking piece 37, so that the first fixing component 5 is prevented from being separated from the rails, and the movement of the first fixing component 5 is facilitated.
A gap is provided between the first rail 34 and the second rail 35 for mounting the second fixing assembly 6.
The sixth connecting plate 33 covers the lower ends of the fourth connecting plate 31 and the fifth connecting plate 32 and is fixedly connected with the first connecting plate 11; the third fixing component 7 is elastically connected with the sixth connecting plate 33.
The first fixing assembly 5 includes a first fixing plate 51, a second lead screw 54 and a second fixing plate 57, as shown in fig. 4 for example.
The second fixing plate 57 has the same structure and the same size as the first fixing plate 51; two sets of first sliding grooves 52 are respectively formed at two ends of the first fixing plate 51, and the first sliding grooves 52 of the two sets of first fixing plates 51 are movably clamped on the second rail 35 and the third rail 36 respectively. Two groups of first sliding grooves 52 are also respectively formed at two ends of the second fixing plate 57, and the first sliding grooves 52 of the two groups of second fixing plates 57 are movably clamped on the first rail 34 and the third rail 36 respectively.
A through hole 53 is respectively formed in the center positions of the first fixing plate 51 and the second fixing plate 57, the through hole 53 penetrates through the first fixing plate 51 and the second fixing plate 57, and the through hole 53 is used for movably clamping a power cable sample;
two groups of first threaded holes 56 are further respectively formed in the first fixing plate 51 and the second fixing plate 57, and the second screw 54 movably penetrates through the first threaded holes 56 and is in threaded connection with the first threaded holes 56.
A second motor 55 is further arranged on one side of the second fixing plate 57 far away from the first fixing plate 51, and one end of the body of the second motor 55 is fixedly connected with the second fixing plate 57; one end of an output shaft of the second motor 55 is in transmission connection with the second lead screw 54.
Illustratively, when the second motor 55 rotates forward, the first fixing plate 51 approaches the second fixing plate 57 along the direction of the second lead screw 54 until the first fixing plate abuts against the second fixing element 6, and at this time, the second fixing plate 57 gradually approaches the first fixing plate 51 until the second fixing element 6 abuts against. When the second motor 55 rotates reversely, the first fixing plate 51 is far away from the second fixing plate 57 until the first fixing plate 51 abuts against the stop piece 37 at the upper end of the second rail 35, and under the support of the stop piece 37, the second fixing plate 57 starts to move in the direction far away from the first fixing plate 51 until the second fixing plate 57 abuts against the stop piece 37 at the lower end of the first rail 34, so that the second fixing assembly 6 is restored.
The second fixing assembly 6 includes a third motor 61, a first connecting rod 62, a third fixing plate 63, a second connecting rod 64, a fourth fixing plate 65, a fourth motor 66 and a third screw 67, as shown in fig. 5 for example.
One end of the body of the third motor 61 is fixedly installed between the first rail 34 and the second rail 35; one end of the output shaft of the third motor 61 is in transmission connection with one end of the first connecting rod 62. The other end of the first connecting rod 62 is fixedly connected with one end of the third fixing plate 63, and the other end of the third fixing plate 63 is fixedly connected with one end of the second connecting rod 64; the other end of the second connecting rod 64 is in transmission connection with the fourth connecting plate 31.
Two groups of second threaded holes 68 are formed in the fourth fixing plate 65 and the third fixing plate 63; the third screw 67 movably penetrates through the second threaded hole 68 and is in threaded connection with the second threaded hole 68. One end of the body of the fourth motor 66 is fixedly mounted on one side of the third fixing plate 63 far away from the fourth fixing plate 65, and one end of the output shaft of the fourth motor 66 is in transmission connection with the third screw 67.
The first motor 2, the second motor 55 and the third motor 61 are all servo motors.
Illustratively, the power cable sample is passed between the third fixing plate 63 and the fourth fixing plate 65, the fourth motor 66 rotates forward to make the third fixing plate 63 close to the fourth fixing plate 65, so as to clamp the power cable sample; then, the fourth motor 66 is rotated forward to wind the power cable sample around the third fixing plate 63 and the fourth fixing plate 65. At this time, the second motor 55 may be started to rotate forward, so that the first fixing plate 51 and the second fixing plate 57 clamp the power cable sample on the outer surfaces of the third fixing plate 63 and the fourth fixing plate 65, the clamping force-bearing area of the sample is increased, and the test result is prevented from being influenced by the damage of the sample caused by clamping.
The third fixing assembly 7 includes a first fixing ring 71, a connecting ring 72, a first spring 73 and a first snap assembly 74, as shown in fig. 6 for example.
One end of the first spring 73 is elastically connected to the sixth connecting plate 33, and the other end of the first spring 73 is elastically connected to one end of the connecting ring 72.
Illustratively, when one end of the power cable sample is inserted into the first fixing ring 71, the first spring 73 is arranged, so that the power cable sample does not depart from the detection device when being contracted.
The other end of the connection ring 72 is fixedly connected to the first fixing ring 71. A plurality of groups of first clamping holes 75 are formed in the first fixing ring 71 at equal intervals, and the first clamping assembly 74 is movably clamped in the first clamping holes 75; a second snap assembly 76 is also provided within the first snap assembly 74.
The first clamping assembly 74 includes a first connecting body 741, four sets of third connecting rods 742 and several sets of second clamping blocks 743, as shown in fig. 7.
One end of each of the four groups of third connecting rods 742 is fixedly mounted at the lower end of the first connecting body 741, a plurality of groups of second retainers 743 are further disposed on the third connecting rods 742, the cross sections of the second retainers 743 are right triangles, and an included angle formed by the hypotenuse of each of the right triangles and the third connecting rod 742 is an acute angle. The second clamping blocks 743 are used for being clamped in the first clamping holes 75, so that the first clamping assembly 74 is fixed in the first clamping holes 75, and one end of the power cable sample is clamped by the first clamping assembly 74 through a plurality of groups.
The second clamping assembly 76 includes a second connector 761, a fourth connecting rod 762, and a third clamping block 763, as shown in fig. 8 for example.
One end of each of the four groups of the fourth connecting rods 762 is elastically connected to the lower end of the second connecting body 761, the second connecting body 761 and the four groups of the fourth connecting rods 762 form a spring, a third clamping block 763 is further disposed on the fourth connecting rod 762, the third clamping block 763 penetrates through the third connecting rod 742, and the fourth connecting rod 762 is gathered towards the center line by pressing the third clamping block 763.
Illustratively, when the second clamping assembly 76 is clamped in the first clamping assembly 74, the third clamping block 763 penetrates through the third connecting rod 742, and the fourth connecting rod 762 expands the third connecting rod 742 to the outside, so that the third connecting rod 742 is clamped with the first clamping hole 75. When the third latching block 763 is pressed, the fourth connecting rod 762 is gathered, and the third connecting rod 742 is restored to its original state, so that the third connecting rod 742 is separated from the first latching hole 75.
First locking grooves 711 are further disposed on two sidewalls of the first locking hole 75, as shown in fig. 9.
A first latch 712 and a second spring 713 are further disposed in the first latch groove 711, and one end of the first latch 712 is elastically connected to the groove bottom of the first latch groove 711 through the second spring 713. The other end of the first fixture block 712 is clamped between the upper and lower sets of the second fixture blocks 743. The other end of the first latch 712 is an inclined surface, and is parallel to the inclined surface of the second latch 743, so that the downward movement of the second latch 743 is facilitated, and the upward movement of the second latch 743 is prevented.
For example, when the third latch 763 is not pressed, the fourth connecting rod 762 expands, the first latch 712 is latched between the two sets of the second latches 743, and at this time, the second latches 743 only move downward. When the third latch 763 is pressed, the fourth connecting rod 762 is gathered, and the second latch 743 is separated from the clamping range of the first latch 712, so that the third connecting rod 742 can be separated from the first clamping hole 75.
The invention provides a tension detection device of a power cable, which has the following working principle:
the two ends of the power cable sample respectively pass through the through hole 53 and between the third fixing plate 63 and the fourth fixing plate 65, and are inserted into the first fixing ring 71; the first connecting bodies 741 are pressed down to clamp both ends of the power cable sample in the first fixing ring 71.
Starting the third motor 61, enabling the third motor 61 to rotate forward, and enabling the power cable sample to be wound on the surfaces of the third fixing plate 63 and the fourth fixing plate 65; and then starting the second motor 55 to enable the first fixing plate 51 and the second fixing plate 57 to approach each other until the power cable samples on the third fixing plate 63 and the fourth fixing plate 65 are clamped, and finally starting the first motor 2 until the power cable samples are broken, and recording the tension when the power cable samples are broken, so that the situation that the samples are damaged due to the use of a clamp is avoided.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A pulling force detection device for power cable which characterized in that: the device comprises a first bracket (1), a first motor (2), a first mounting seat (3), a second mounting seat (4), a first fixing component (5), a second fixing component (6) and a third fixing component (7);
the first mounting seat (3) is fixedly mounted at the lower end of the first support (1), and the second mounting seat (4) is movably mounted on the first support (1) and is positioned above the first mounting seat (3);
one end of the body of the first motor (2) is fixedly arranged at the top of the first bracket (1), and one end of the output shaft of the first motor (2) is in transmission connection with the second mounting seat (4);
the first mounting seat (3) and the second mounting seat (4) are identical in structure and are symmetrically arranged; the first fixing component (5) is movably clamped in the first mounting seat (3), and the second fixing component (6) is rotatably mounted in the first mounting seat (3) and is positioned in the first fixing component (5);
the third fixing component (7) is elastically installed in the first installation seat (3) and is positioned below the first fixing component (5).
2. A tension detecting device for an electric power cable according to claim 1, characterized in that: the first support (1) comprises a first connecting plate (11), a second connecting plate (12), a third connecting plate (13) and a first mounting plate (15);
two ends of the second connecting plate (12) are respectively and fixedly connected with the first connecting plate (11) and the third connecting plate (13); the first connecting plate (11) and the third connecting plate (13) are positioned on the same side of the second connecting plate (12), and the first connecting plate (11) is positioned below the third connecting plate (13);
a first screw rod (14) is further arranged between the first connecting plate (11) and the third connecting plate (13), and the first motor (2) is in transmission connection with the first screw rod (14); a second mounting plate (16) is fixedly mounted on the first connecting plate (11), and the second mounting plate (16) is fixedly connected with the first mounting seat (3); one end of the first screw rod (14) is rotatably connected with the second mounting plate (16), and the other end of the first screw rod (14) is rotatably connected with the third connecting plate (13);
a first mounting plate (15) is movably clamped on the first screw rod (14), and the first mounting plate (15) is fixedly connected with the second mounting seat (4); the first mounting plate (15) is internally in threaded connection with the first screw rod (14) through internal threads.
3. A tension detecting device for an electric power cable according to claim 2, characterized in that: the first mounting seat (3) comprises a fourth connecting plate (31), a fifth connecting plate (32) and a sixth connecting plate (33);
one end of each of the two groups of fourth connecting plates (31) is fixedly connected with two ends of the corresponding fifth connecting plate (32), a first rail (34), a second rail (35) and a third rail (36) are arranged at the upper end of each fourth connecting plate (31), the first rail (34) and the second rail (35) are located on the same side of the third rail (36), and the first rail (34) and the second rail (35) are located on the same straight line and are parallel to the third rail (36);
the first fixing component (5) is movably clamped on the first rail (34), the second rail (35) and the third rail (36); blocking pieces (37) are arranged at the lower end of the first rail (34), the upper end of the second rail (35) and the two ends of the third rail (36);
the second fixing assembly (6) is mounted in a gap provided between the first rail (34) and the second rail (35);
the sixth connecting plate (33) covers the lower ends of the fourth connecting plate (31) and the fifth connecting plate (32) and is fixedly connected with the first connecting plate (11); the third fixing component (7) is elastically connected with the sixth connecting plate (33).
4. A tension detecting device for an electric power cable according to claim 3, characterized in that: the first fixing assembly (5) comprises a first fixing plate (51), a second screw rod (54) and a second fixing plate (57);
the second fixing plate (57) and the first fixing plate (51) have the same structure and the same size; two ends of the first fixing plate (51) are respectively provided with two groups of first sliding chutes (52), and the first sliding chutes (52) of the two groups of first fixing plates (51) are movably clamped on the second rail (35) and the third rail (36) respectively; two ends of the second fixing plate (57) are also respectively provided with two groups of first sliding grooves (52), and the first sliding grooves (52) of the two groups of second fixing plates (57) are respectively movably clamped on the first track (34) and the third track (36).
5. The tension detecting device for an electric power cable according to claim 4, wherein: a through hole (53) is formed in the center positions of the first fixing plate (51) and the second fixing plate (57), and the through hole (53) penetrates through the first fixing plate (51) and the second fixing plate (57);
two groups of first threaded holes (56) are respectively formed in the first fixing plate (51) and the second fixing plate (57), and the second screw rod (54) movably penetrates through the first threaded holes (56) and is in threaded connection with the first threaded holes (56);
a second motor (55) is further arranged on one side, away from the first fixing plate (51), of the second fixing plate (57), and one end of the body of the second motor (55) is fixedly connected with the second fixing plate (57); one end of an output shaft of the second motor (55) is in transmission connection with the second screw rod (54).
6. A tension detecting device for an electric power cable according to claim 3, characterized in that: the second fixing assembly (6) comprises a third motor (61), a first connecting rod (62), a third fixing plate (63), a second connecting rod (64), a fourth fixing plate (65), a fourth motor (66) and a third screw rod (67);
one end of the body of the third motor (61) is fixedly arranged in a gap between the first rail (34) and the second rail (35); one end of an output shaft of the third motor (61) is in transmission connection with one end of the first connecting rod (62);
the other end of the first connecting rod (62) is fixedly connected with one end of a third fixing plate (63), and the other end of the third fixing plate (63) is fixedly connected with one end of a second connecting rod (64); the other end of the second connecting rod (64) is in transmission connection with the fourth connecting plate (31);
two groups of second threaded holes (68) are formed in the fourth fixing plate (65) and the third fixing plate (63); the third screw rod (67) movably penetrates through the second threaded hole (68) and is in threaded connection with the second threaded hole (68); one end of the body of the fourth motor (66) is fixedly installed on one side, far away from the fourth fixing plate (65), of the third fixing plate (63), and one end of the output shaft of the fourth motor (66) is in transmission connection with the third screw rod (67).
7. A tension detecting device for an electric power cable according to claim 3, characterized in that: the third fixing component (7) comprises a first fixing ring (71), a connecting ring (72), a first spring (73) and a first clamping component (74);
one end of the first spring (73) is elastically connected with the sixth connecting plate (33), and the other end of the first spring (73) is elastically connected with one end of the connecting ring (72);
the other end of the connecting ring (72) is fixedly connected with the first fixing ring (71); a plurality of groups of first clamping holes (75) are formed in the first fixing ring (71) at equal intervals, and the first clamping assembly (74) is movably clamped in the first clamping holes (75); and a second clamping assembly (76) is also arranged in the first clamping assembly (74).
8. The tension detecting device for an electric power cable according to claim 7, wherein: the first clamping assembly (74) comprises a first connecting body (741), four groups of third connecting rods (742) and a plurality of groups of second clamping blocks (743);
one end of each of the four groups of third connecting rods (742) is fixedly mounted at the lower end of the first connecting body (741), a plurality of groups of second clamping blocks (743) are further arranged on the third connecting rods (742), the sections of the second clamping blocks (743) are right-angled triangles, and the included angle formed by the hypotenuse of each right-angled triangle and the third connecting rod (742) is an acute angle.
9. The tension detecting device for an electric power cable according to claim 8, wherein: the second clamping assembly (76) comprises a second connecting body (761), a fourth connecting rod (762) and a third clamping block (763);
one end of each of the four groups of fourth connecting rods (762) is elastically connected to the lower end of the second connecting body (761), the second connecting body (761) and the four groups of fourth connecting rods (762) form a spring, a third clamping block (763) is further arranged on each fourth connecting rod (762), and each third clamping block (763) penetrates through each third connecting rod (742).
10. The tension detecting device for an electric power cable according to claim 8, wherein: two side walls of the first clamping hole (75) are also provided with first clamping grooves (711);
a first clamping block (712) and a second spring (713) are further arranged in the first clamping groove (711), and one end of the first clamping block (712) is elastically connected with the groove bottom of the first clamping groove (711) through the second spring (713); the other end of the first clamping block (712) is clamped between the upper and lower groups of second clamping blocks (743); the other end of the first clamping block (712) is an inclined surface and is parallel to the inclined surface of the second clamping block (743).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011624941.4A CN112665968A (en) | 2020-12-31 | 2020-12-31 | Tension detection device for power cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011624941.4A CN112665968A (en) | 2020-12-31 | 2020-12-31 | Tension detection device for power cable |
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| CN112665968A true CN112665968A (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011624941.4A Pending CN112665968A (en) | 2020-12-31 | 2020-12-31 | Tension detection device for power cable |
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| Country | Link |
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| CN (1) | CN112665968A (en) |
Cited By (1)
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| CN113432960A (en) * | 2021-05-08 | 2021-09-24 | 镇江市玖润光通信技术有限公司 | Multifunctional optical cable tensile testing machine |
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