CN113533789B - Three-phase high-voltage line current optical measuring device based on magnetostrictive effect - Google Patents
Three-phase high-voltage line current optical measuring device based on magnetostrictive effect Download PDFInfo
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- CN113533789B CN113533789B CN202111091427.3A CN202111091427A CN113533789B CN 113533789 B CN113533789 B CN 113533789B CN 202111091427 A CN202111091427 A CN 202111091427A CN 113533789 B CN113533789 B CN 113533789B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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Abstract
The invention belongs to the technical field of current measurement of high-voltage lines, in particular to a three-phase high-voltage line current optical measurement device based on a magnetostrictive effect. According to the invention, the self-rotating cylinder, the conical head, the limiting groove and the rotating blade are arranged, the self-rotating shaft is impacted by wind power in the measuring process of the measuring box in the high air, so that the conical head performs self-rotation in the conical groove in the self-rotating cylinder, the self-rotating shaft rotates along with the self-rotating shaft, the rotating blade is driven to rotate, the resistance in the process that the unmanned aerial vehicle drives the measuring box to move is reduced, meanwhile, the wind power generated by the rotating blade strengthens the wind power impact on the lifting rope, the contact frequency of the metal impact ball and the auxiliary metal impact ball is improved, and the bird repelling effect is further improved.
Description
Technical Field
The invention relates to the technical field of high-voltage line current measurement, in particular to a three-phase high-voltage line current optical measurement device based on a magnetostrictive effect.
Background
High voltage lines are generally power transmission lines which transmit voltages above 10KV (including 10 KV). High pressures are generally free of 1000V, as specified in GB/T2900.50-2008, definition 2.1; the voltage grades of the high-voltage transmission lines in China are generally divided into 35KV, 110KV, 220KV, 330KV, 500KV, 750KV and the like; when the high-voltage line is used, current measurement needs to be carried out on the high-voltage line regularly, and high-altitude measurement needs to be carried out on the high-voltage line through a current measuring device during measurement.
The current three-phase high-voltage line current optical measurement device based on the magnetostrictive effect is when carrying out high-voltage line current measurement, the influence that wind-force in the high air caused measuring equipment is great, optical measurement device appears the skew easily under the impact of wind-force, lead to measuring result great error to appear, simultaneously, in the measurement process, birds in the high air descend easily on measuring device, make measuring device appear the slope, the excrement and urine of birds covers on the electric wire of measurement department, lead to measuring result fatal mistake to appear easily, make high-voltage line current measurement compel the pause, reduce this measuring device's use value.
Disclosure of Invention
When the current optical measuring device for the current of the high-voltage line based on the existing three-phase high-voltage line based on the magnetostrictive effect measures the current of the high-voltage line, the wind power in the high air has a large influence on measuring equipment, the optical measuring device is easy to deviate under the impact of the wind power, so that a measuring result has a large error, meanwhile, birds in the high air are easy to fall on the measuring device in the measuring process, so that the measuring device is inclined, the excrement of the birds covers the wires at the measuring position, the measuring result is easy to cause fatal errors, the current measurement of the high-voltage line is forced to be suspended, and the use value of the measuring device is reduced.
The invention provides a three-phase high-voltage line current optical measuring device based on a magnetostrictive effect, which comprises a measuring box and guide plates, wherein the outer walls of two sides of the measuring box are fixedly connected with air pumping plates, the outer walls of the two air pumping plates are provided with air pumping holes at equal distances, the outer walls of the two air pumping plates are fixedly connected with two connecting pipes, the two connecting pipes are communicated with the air pumping plates, the outer wall of one opposite side of each of the two guide plates is fixedly connected with a pump frame, the outer walls of the two pump frames are fixedly connected with air pumps, the outer wall of the top of the pump frame is fixedly connected with a stepped air blowing plate, the outer wall of the stepped air blowing plate is provided with air blowing holes at equal distances, the air inlet end of each air pump is fixedly connected to the inside of the corresponding connecting pipe, and the air delivery end of each air pump is connected to the inside of the corresponding stepped air blowing plate through a pipeline.
Preferably, the outer wall of one side of the measuring box is provided with three connecting holes, the inner walls of the three connecting holes are fixedly connected with hollow transmission pipes, and the other ends of the hollow transmission pipes are fixedly connected with fixing rings.
Preferably, the outer wall of the fixing ring is fixedly connected with two fixing frames, the outer wall of the fixing frames on one side is fixedly connected with the same supporting rod, and the supporting rod is fixedly connected to the outer wall of the bottom of the guide plate.
Preferably, the outer wall of the fixing ring is connected with two sleeving rings through hinges, the outer walls of the two sleeving rings are connected with hydraulic cylinders through hinges, and the other ends of the hydraulic cylinders are fixedly connected to the outer wall of the fixing frame.
Preferably, two the equal fixedly connected with measuring component of outer wall of overlap joint ring, and the equal fixedly connected with carriage of outer wall of two overlap joint rings, the equal distance fixedly connected with magnet of inner wall of two carriages, the magnet staggered arrangement that is located different carriages.
Preferably, the top outer wall of the measuring box is fixedly connected with a hanging bracket, the top outer walls of the measuring box at the two ends of the hanging bracket are fixedly connected with sliding rails, and the inner walls of the two sliding rails are connected with sliding blocks at equal distances in a sliding mode.
Preferably, the top outer wall fixedly connected with pole setting of slider, and the top outer wall equidistance fixedly connected with branch pole of every pole setting, the bottom outer wall equidistance fixedly connected with lifting rope of every branch pole, the other end of every lifting rope all is equipped with the metal impact ball.
Preferably, the outer wall of the vertical rod is fixedly connected with extrusion springs at equal intervals, the outer wall of each extrusion spring is fixedly connected with an auxiliary metal impact ball, and the auxiliary metal impact balls are close to the metal impact balls.
Preferably, the equal fixedly connected with curb plate of both sides outer wall of measuring box, and the equal distance fixedly connected with of the top outer wall of two curb plates from a section of thick bamboo soon, the top outer wall of every section of thick bamboo soon all opens there is the bell jar.
Preferably, every the inner wall of bell jar all is pegged graft there is the conical head, and the outer wall of conical head opens there is the spacing groove, the outer wall equidistance fixedly connected with connecting rod of spinning cylinder, the equal fixed connection of outer wall of every connecting rod has the spacing head, and spacing head is located the inside of spacing groove, and the top outer wall fixedly connected with of conical head is from the rotating shaft, from the rotating shaft's outer wall fixedly connected with swivel leaf.
The beneficial effects of the invention are as follows:
1. by arranging the wind power offset assembly, when the high-voltage line current is measured by the measuring device and the measuring assembly in the measuring box, the air pump is started, the air inlet end of the air pump is connected with the connecting pipe, so that the gas at the periphery of the measuring box is guided into the stepped air blowing plate through the air exhaust hole on the air exhaust plate, the influence of the wind power on the periphery of the measuring box is reduced, the integral stability of the measuring device is ensured, meanwhile, the air blowing end of the air pump is connected with the stepped air blowing plate, the gas at the periphery is blown to the upper end and the lower end of the measuring assembly through the air blowing hole on the stepped air blowing plate, the guide plates at the upper part and the lower part prevent the gas from influencing the measuring assembly, the air blowing holes on the stepped air blowing plate are distributed in a divergent mode, all positions outside the measuring assembly are covered, an air curtain is formed, the impact is formed by the air curtain and the external wind power cannot influence the measuring assembly, the divergent wind power can also disperse surrounding birds, so that bird droppings are prevented from falling on a measured high-voltage line, the accuracy of the measurement result of the measuring device is improved, and the use value of the measuring device is improved.
2. Through being provided with the sliding rail, the slider, the lifting rope, metal impact ball, extrusion spring and supplementary metal impact ball, measuring device and measuring component in the measuring box are carrying out the in-process of measuring, wind-force strikes the lifting rope, make the lifting rope take place to rock, the lifting rope that rocks drives metal impact ball and supplementary metal impact ball and takes place the striking, send the sound of dazzling, thereby play the effect of driving away to near birds, supplementary metal impact ball is at the in-process by the striking, the extrusion spring is extrudeed, metal impact ball resilience back, the extrusion spring drives supplementary metal impact ball and resets, thereby produce the secondary striking, further improve and drive bird effect, ensure that birds can't cause any influence to measuring device, further improve and measure accuracy nature.
3. Through being provided with the spinning cylinder, the conical head, the spacing head, spacing groove and swivel leaf, measurement case in the air of height is in the measurement process, wind-force strikes the autogyration axle, make the conical head take place autogyration in the conical groove in the spinning cylinder, the autogyration axle takes place rotatory thereupon, it rotates to drive the swivel leaf, reduce unmanned aerial vehicle and drive the resistance that the measurement case removed the in-process, and simultaneously, the wind-force that the lifting rope received is strengthened to the wind-force that the swivel leaf produced strikes, improve the frequency that metal striking ball and supplementary metal striking ball contacted, further improve and drive the bird effect.
4. Through being provided with the mount, the pneumatic cylinder, the cup joint ring, carriage and magnet, when carrying out high-voltage line current measurement through the inside measuring component of cup joint ring, it removes to adjust the pneumatic cylinder drive cup joint ring for two cup joint ring cup joints in high-voltage line's the outside, magnet staggered arrangement in the carriage, improve two cup joint ring's after the closure connection stability, ensure measuring component steady operation, and simultaneously, whole in-process remote control gets rid of the potential safety hazard, ensure staff's security.
Drawings
Fig. 1 is a schematic overall structure diagram of a three-phase high-voltage line current optical measurement device based on the magnetostrictive effect according to the present invention;
FIG. 2 is a front view of the overall structure of the three-phase high-voltage line current optical measuring device based on the magnetostrictive effect;
FIG. 3 is a schematic view of a wind force counteracting assembly of the magnetostrictive effect based three-phase high-voltage line current optical measuring device;
FIG. 4 is a schematic structural diagram of a spin tube of the three-phase high-voltage line current optical measurement device based on the magnetostrictive effect according to the present invention;
FIG. 5 is a schematic structural diagram of a metal impact ball of the three-phase high-voltage line current optical measurement device based on the magnetostrictive effect according to the present invention;
fig. 6 is a schematic diagram of a socket ring structure of a three-phase high-voltage line current optical measurement device based on the magnetostrictive effect.
In the figure: 1. a measuring box; 2. a side plate; 3. a spin axis; 4. a hanger; 5. rotating the leaf; 6. a guide plate; 7. a sleeving connection ring; 8. a connecting frame; 9. a fixed mount; 10. a hollow transfer tube; 11. an air extraction plate; 12. erecting a rod; 13. a spinning cylinder; 14. a connecting pipe; 15. a support bar; 16. a stepped blast plate; 17. a blast hole; 18. an air pump; 19. a pump frame; 20. an air exhaust hole; 21. a connecting rod; 22. a limiting head; 23. a limiting groove; 24. a conical head; 25. a sliding rail; 26. a slider; 27. a metal impact ball; 28. separating rods; 29. an auxiliary metal impact ball; 30. a compression spring; 31. a hydraulic cylinder; 32. a magnet; 33. a measurement assembly; 34. and (4) fixing the ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, the three-phase high-voltage line current optical measuring device based on the magnetostrictive effect comprises a measuring box 1 and guide plates 6, wherein the outer walls of two sides of the measuring box 1 are fixedly connected with air pumping plates 11, air pumping holes 20 are arranged on the outer walls of the two air pumping plates 11 at equal distances, two connecting pipes 14 are fixedly connected with the outer walls of the two air pumping plates 11, the two connecting pipes 14 are communicated with the air pumping plates 11, the outer wall of one side, opposite to the two guide plates 6, is fixedly connected with a pump frame 19, the outer walls of the two pump frames 19 are fixedly connected with air pumps 18, the outer wall of the top of the pump frame 19 is fixedly connected with a stepped air blowing plate 16, the outer wall of the stepped air blowing plate 16 is provided with air blowing holes 17 at equal distances, the air inlet end of the air pump 18 is fixedly connected to the inside of the connecting pipe 14, the air delivery end of the air pump 18 is connected to the inside of the stepped air blowing plate 16 through a pipeline, and a wind force counteracting assembly is arranged, when high-voltage line current is measured through a measuring device and a measuring component 33 in a measuring box 1, an air pump 18 is started, the air inlet end of the air pump 18 is connected with a connecting pipe 14, so that air around the measuring box 1 is guided into a stepped air blowing plate 16 through an air suction hole 20 on an air suction plate 11, the influence of wind on the periphery of the measuring box 1 is reduced, the overall stability of the measuring device is ensured, meanwhile, the air blowing end of the air pump 18 is connected with the stepped air blowing plate 16, the peripheral air is blown to the upper end and the lower end of the measuring component 33 through air blowing holes 17 on the stepped air blowing plate 16, guide plates 6 above and below prevent the influence of the air on the measuring component 33, the air blowing holes 17 on the stepped air blowing plate 16 are distributed in a divergent mode, all positions outside the measuring component 33 are covered, an air curtain is formed, impact is formed by the external wind, and the external wind cannot influence the measuring component 33, the divergent wind power can also disperse surrounding birds, so that bird droppings are prevented from falling on a measured high-voltage line, the accuracy of the measurement result of the measuring device is improved, and the use value of the measuring device is improved.
Referring to fig. 1 and 6, the outer wall of one side of the measuring box 1 is provided with three connecting holes, the inner walls of the three connecting holes are fixedly connected with a hollow transmission pipe 10, the other end of the hollow transmission pipe 10 is fixedly connected with a fixing ring 34, the outer wall of the fixing ring 34 is fixedly connected with two fixing frames 9, the outer walls of the fixing frames 9 positioned on one side are fixedly connected with the same supporting rod 15, the supporting rod 15 is fixedly connected with the outer wall of the bottom of the guide plate 6, the outer wall of the fixing ring 34 is connected with two sleeve rings 7 through hinges, the outer walls of the two sleeve rings 7 are connected with a hydraulic cylinder 31 through hinges, the other end of the hydraulic cylinder 31 is fixedly connected with the outer wall of the fixing frame 9, the outer walls of the two sleeve rings 7 are fixedly connected with a measuring component 33, the outer walls of the two sleeve rings 7 are fixedly connected with connecting frames 8, and magnets 32 are fixedly connected with the equal distances between the inner walls of the two connecting frames 8, the magnets 32 in different coupling frames 8 are arranged in a staggered manner.
Referring to fig. 1 and 5, a hanger 4 is fixedly connected to the outer wall of the top of the measuring box 1, and the outer walls of the top of the measuring box 1 at both ends of the hanger 4 are fixedly connected with sliding rails 25, the inner walls of the two sliding rails 25 are slidably connected with sliders 26 at equal distances, the outer wall of the top of the slider 26 is fixedly connected with vertical rods 12, and the outer wall of the top of each vertical rod 12 is fixedly connected with branch rods 28 at equal distances, the outer wall of the bottom of each branch rod 28 is fixedly connected with a lifting rope at equal distances, the other end of each lifting rope is provided with a metal impact ball 27, the outer wall of each vertical rod 12 is fixedly connected with extrusion springs 30 at equal distances, and the outer wall of each extrusion spring 30 is fixedly connected with an auxiliary metal impact ball 29, the auxiliary metal impact ball 29 is close to the metal impact ball 27, by being provided with the sliding rails 25, the sliders 26, the lifting ropes, the metal impact balls 27, the extrusion springs 30 and the auxiliary metal impact balls 29, measuring device and measuring component 33 in measuring box 1 are carrying out the in-process of measuring, wind-force strikes the lifting rope, make the lifting rope take place to rock, the lifting rope that rocks drives metal impact ball 27 and supplementary metal impact ball 29 and takes place the striking, send the sound of dazzling, thereby play the effect of driving away to nearby birds, supplementary metal impact ball 29 is at the in-process by the striking, extrusion spring 30 is extruded, metal impact ball 27 kick-backs, extrusion spring 30 drives supplementary metal impact ball 29 and resets, thereby produce the secondary striking, further improve and drive the bird effect, ensure that birds can't cause any influence to measuring device, further improve and measure accuracy nature.
Referring to fig. 1 and 4, the outer walls of both sides of the measuring box 1 are fixedly connected with side plates 2, the outer walls of the tops of the two side plates 2 are fixedly connected with spinning cylinders 13 at equal distances, the outer wall of the top of each spinning cylinder 13 is provided with a conical groove, the inner wall of each conical groove is inserted with a conical head 24, the outer wall of each conical head 24 is provided with a limiting groove 23, the outer wall of each spinning cylinder 13 is fixedly connected with connecting rods 21 at equal distances, the outer wall of each connecting rod 21 is fixedly connected with a limiting head 22, the limiting head 22 is positioned inside the limiting groove 23, the outer wall of the top of each conical head 24 is fixedly connected with a spinning shaft 3, the outer wall of each spinning shaft 3 is fixedly connected with a rotating blade 5, and the measuring box 1 in high altitude impacts the spinning shaft 3 by wind power during the measuring process to enable the spinning heads 24 to spin in the conical grooves in the spinning cylinders 13, from the rotation of axle 3 emergence rotation thereupon, drive swivel leaf 5 and rotate, reduce unmanned aerial vehicle and drive the resistance that measuring case 1 removed the in-process, simultaneously, the wind-force that the lifting rope received is strengthened to the wind-force that swivel leaf 5 produced strikes, improves the frequency that metal strikes ball 27 and supplementary metal strikes ball 29 contact, further improves and drives the bird effect.
When the device is used, the measuring device is moved to a high-voltage line through an unmanned aerial vehicle, the adjusting hydraulic cylinder 31 drives the splicing rings 7 to move, so that the two splicing rings 7 are spliced on the outer side of the high-voltage line, the magnets 32 in the connecting frame 8 are arranged in a staggered manner, the connection stability of the two closed splicing rings 7 is improved, then the current measurement of the high-voltage line is carried out through the measuring components 33 in the splicing rings 7, in the measuring process, the air pump 18 is started, the air inlet end of the air pump 18 is connected with the connecting pipe 14, so that the air around the measuring box 1 is guided into the stepped air blowing plate 16 through the air suction holes 20 in the air suction plate 11, the influence on the periphery of the measuring box 1 by wind is reduced, the overall stability of the measuring device is ensured, meanwhile, the air blowing end of the air pump 18 is connected with the stepped air blowing plate 16, the air around the measuring component is blown to the upper end and the lower end of the measuring components 33 through the air blowing holes 17 in the stepped air blowing plate 16, the upper and lower guide plates 6 prevent gas from influencing the measuring component 33, the blast holes 17 on the stepped blast plate 16 are distributed in a divergent manner, so that all positions outside the measuring component 33 are covered to form an air curtain to impact with external wind power, the external wind power cannot influence the measuring component 33, the divergent wind power can also play a dispersing effect on surrounding birds to prevent bird droppings from falling on a measured high-voltage line, meanwhile, the wind power impacts the lifting rope in the measuring device and the measuring component 33 in the measuring box 1 during the measuring process, so that the lifting rope shakes, the swinging lifting rope drives the metal ball 27 to impact the auxiliary metal impact ball 29 to generate harsh sound, the effect of repelling nearby birds is achieved, the auxiliary metal impact ball 29 extrudes the extrusion spring 30 during the impacting process, after the metal impact ball 27 rebounds, the extrusion spring 30 drives the auxiliary metal impact ball 29 to reset, so that secondary impact is generated, bird repelling effect is further improved, and accurate measurement of the measuring device can be realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The three-phase high-voltage line current optical measuring device based on the magnetostrictive effect comprises a measuring box (1) and guide plates (6), and is characterized in that the outer walls of two sides of the measuring box (1) are fixedly connected with air pumping plates (11), air pumping holes (20) are formed in the outer walls of the two air pumping plates (11) at equal distances, two connecting pipes (14) are fixedly connected with the outer walls of the two air pumping plates (11), the two connecting pipes (14) are communicated with the air pumping plates (11), pump frames (19) are fixedly connected with the outer walls of the opposite sides of the two guide plates (6), air pumps (18) are fixedly connected with the outer walls of the two pump frames (19), stepped air blowing plates (16) are fixedly connected with the outer walls of the tops of the pump frames (19), air blowing holes (17) are formed in the outer walls of the stepped air blowing plates (16) at equal distances, and the air inlet ends of the air pumps (18) are fixedly connected to the insides of the connecting pipes (14), and the air delivery end of the air pump (18) is connected to the inside of the stepped blast plate (16) through a pipeline.
2. The magnetostrictive effect based three-phase high-voltage line current optical measuring device according to claim 1, characterized in that the outer wall of one side of the measuring box (1) is provided with three connecting holes, the inner walls of the three connecting holes are fixedly connected with a hollow transmission pipe (10), and the other end of the hollow transmission pipe (10) is fixedly connected with a fixing ring (34).
3. The magnetostrictive effect based optical three-phase high-voltage line current measuring device according to claim 2, characterized in that two fixing frames (9) are fixedly connected to the outer wall of the fixing ring (34), the same support bar (15) is fixedly connected to the outer walls of the fixing frames (9) on one side, and the support bar (15) is fixedly connected to the outer bottom wall of the guide plate (6).
4. The magnetostrictive effect based optical three-phase high-voltage line current measuring device according to claim 3, characterized in that the outer wall of the fixed ring (34) is hinged with two socket rings (7), the outer walls of the two socket rings (7) are hinged with hydraulic cylinders (31), and the other ends of the hydraulic cylinders (31) are fixedly connected with the outer wall of the fixed frame (9).
5. The magnetostrictive-effect-based optical three-phase high-voltage line current measuring device according to claim 4, characterized in that the outer walls of the two sleeving rings (7) are fixedly connected with a measuring component (33), the outer walls of the two sleeving rings (7) are fixedly connected with connecting frames (8), the inner walls of the two connecting frames (8) are fixedly connected with magnets (32) at equal distances, and the magnets (32) in different connecting frames (8) are arranged in a staggered manner.
6. The magnetostrictive effect based optical three-phase high-voltage line current measuring device according to claim 1, characterized in that the outer wall of the top of the measuring box (1) is fixedly connected with the hanging bracket (4), the outer walls of the top of the measuring box (1) at the two ends of the hanging bracket (4) are fixedly connected with sliding rails (25), and the inner walls of the two sliding rails (25) are slidably connected with sliding blocks (26) at equal distances.
7. The magnetostrictive effect based optical three-phase high-voltage line current measuring device according to claim 6, characterized in that vertical rods (12) are fixedly connected to the top outer wall of the sliding block (26), branch rods (28) are fixedly connected to the top outer wall of each vertical rod (12) at equal distances, lifting ropes are fixedly connected to the bottom outer wall of each branch rod (28) at equal distances, and a metal impact ball (27) is arranged at the other end of each lifting rope.
8. The magnetostrictive effect based optical three-phase high-voltage line current measuring device according to claim 7, characterized in that the outer walls of the vertical rods (12) are fixedly connected with squeezing springs (30) at equal intervals, and the outer wall of each squeezing spring (30) is fixedly connected with an auxiliary metal striking ball (29), wherein the auxiliary metal striking balls (29) are close to the metal striking balls (27).
9. The magnetostrictive effect based optical three-phase high-voltage line current measuring device according to claim 1, characterized in that the outer walls of both sides of the measuring box (1) are fixedly connected with side plates (2), the outer walls of the tops of the two side plates (2) are fixedly connected with spinning cylinders (13) at equal distances, and the outer wall of the top of each spinning cylinder (13) is provided with a conical groove.
10. The magnetostrictive effect based optical three-phase high-voltage line current measuring device according to claim 9, characterized in that a conical head (24) is inserted into the inner wall of each conical groove, the outer wall of the conical head (24) is provided with a limiting groove (23), the outer wall of the spinning cylinder (13) is fixedly connected with connecting rods (21) at equal intervals, the outer wall of each connecting rod (21) is fixedly connected with a limiting head (22), the limiting head (22) is located inside the limiting groove (23), the outer wall of the top of the conical head (24) is fixedly connected with a spinning shaft (3), and the outer wall of the spinning shaft (3) is fixedly connected with a rotating blade (5).
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| CN202111091427.3A CN113533789B (en) | 2021-09-17 | 2021-09-17 | Three-phase high-voltage line current optical measuring device based on magnetostrictive effect |
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