CN110589635B - Electric power overhaul device and overhaul method - Google Patents
Electric power overhaul device and overhaul method Download PDFInfo
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- CN110589635B CN110589635B CN201910848368.6A CN201910848368A CN110589635B CN 110589635 B CN110589635 B CN 110589635B CN 201910848368 A CN201910848368 A CN 201910848368A CN 110589635 B CN110589635 B CN 110589635B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4473—Constructional details without arrangements or adaptations for rotating the core or former
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/48—Automatic re-storing devices
- B65H75/486—Arrangements or adaptations of the spring motor
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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
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses an electric power overhaul device and an overhaul method, and relates to the technical field of electric power overhaul. The technical key points are as follows: an electric power overhaul device comprises a box body, a box cover and an insulation tester, wherein a placing groove is formed in the box body, a fixed shaft is fixedly connected to the inner wall of the placing groove, the axis of the fixed shaft is parallel to the bottom wall of the box body, a plurality of coil springs are fixedly connected to the periphery of the fixed shaft, winding drums rotatably connected with the fixed shaft are arranged on the periphery of the coil springs, one ends of the coil springs, far away from the fixed shaft, are fixedly connected with the inner wall of the winding drums, test lines are wound on the periphery of the winding drums, plugs and chucks are respectively arranged at two ends of the test lines, the plugs are arranged at one ends, close to the insulation tester, of the test lines, protective housings are arranged on the periphery; the inner wall of the protective shell is provided with a speed reduction assembly for reducing the winding speed of the test wire. The invention has the advantages of rapid retraction of the test wire and high test efficiency.
Description
Technical Field
The invention relates to the technical field of electric power overhaul, in particular to an electric power overhaul device and an overhaul method.
Background
At present, with the rapid development of the existing power industry, the application of power is more and more extensive, and many cities and rural areas are all covered, and certainly, circuit faults can be caused due to the influence of some natural factors or other factors in the power transmission process, so that many maintenance personnel can troubleshoot and maintain the faults, in the power maintenance process, manual operation is needed in many places, particularly, some maintenance personnel are needed to maintain circuits or power equipment, and the power maintenance personnel are generally required to climb to a high place to detect and install the equipment.
The invention discloses an intelligent cable insulation resistance tester in Chinese patent with publication number CN208752139U, which comprises a box body and a box cover, wherein the box cover can be covered on one side of a control panel of the box body, and the control panel of the box body is provided with an LCD display screen, an operating keyboard, a test connection column cap and an alarm buzzer; the side surface of the box body is also provided with a power supply interface, a network cable interface and a video cable interface; a control circuit board is arranged in the box body, a central controller is integrated on the control circuit board, and the central controller is respectively connected with the LCD display screen, the operation keyboard and the alarm buzzer through leads; the signal output end of the central controller is also connected with a wireless communication module, and the wireless communication module is connected with a monitoring center computer through a wireless network. In the prior art, in order to conveniently place the wires, a placing groove is reserved in the box body, and the wires are placed in the placing groove after being wound.
The prior art scheme has the following defects: foretell insulation resistance tester is in the use, generally all need take out the test wire of coiling earlier, the wiring after the expansion test wire, carry out insulation resistance's test again, the back is accomplished in the test, need to coil the test wire into a group again and put into the box, on the one hand, easily knoing when the test wire is convoluteed, waste time and energy when expanding the test wire, reduce efficiency of software testing, on the other hand, the test wire is knoed many times, the expansion causes the test wire fracture easily, influences the test result.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the electric power overhaul device which has the advantages of being capable of quickly winding and unwinding the test wire and high in test efficiency.
The above object of the present invention is achieved by the following technical solutions:
an electric power overhaul device comprises a box body, a box cover and an insulation tester positioned in the box body, wherein a placing groove is formed in the box body, a fixed shaft is fixedly connected to the inner wall of the placing groove, the axis of the fixed shaft is parallel to the bottom wall of the box body, a plurality of coil springs are fixedly connected to the periphery of the fixed shaft, winding drums rotatably connected with the fixed shaft are arranged on the periphery of the coil springs, one ends, away from the fixed shaft, of the coil springs are fixedly connected with the inner wall of the winding drums, test lines are wound on the periphery of the winding drums, plugs and chucks are respectively arranged at two ends of the test lines, the plugs are arranged at one ends, close to the insulation tester, of the test lines, protective housings are arranged on the periphery of the winding drums, and jacks and clamping holes; the inner wall of the protective shell is provided with a speed reduction assembly used for abutting against the test wire and reducing the winding speed of the test wire.
By adopting the technical scheme, when equipment or a sample needs to be tested, the box cover is opened, the chuck is pulled outwards, the chuck drives the test wire to extend out of the clamping hole, the test wire drives the winding cylinder to rotate and compress the coil spring, when the length of the chuck is enough to connect the equipment or the sample, the plug is taken out, the plug is connected with the corresponding socket of the insulation tester, the chuck of the test wire is connected with the tested equipment, after all the test wires are connected as required, the insulation performance of the equipment or the sample is tested, after the test is finished, the plug and the chuck of the test wire are pulled out, the plug is fixed on the winding cylinder, after the chuck is loosened, the coil spring restores the natural state and simultaneously drives the test wire at the end of the chuck to be wound around the winding cylinder, the speed reducing component can reduce the winding speed of the test wire, and avoid the damage to a tester or the box body caused by, the invention has the advantages of rapid retraction of the test wire and high test efficiency.
The invention is further configured to: the speed reduction subassembly includes speed reduction spring, guide bar, slider, pivot, deceleration wheel, speed reduction spring is in compression state along the radial setting of a winding reel and its one end and protective housing inner wall fixed connection, slider and speed reduction spring's other end fixed connection, the guide bar is located inside and the setting of following speed reduction spring axis direction of speed reduction spring, the one end and the protective housing fixed connection of guide bar, its other end and slider sliding connection, the pivot is parallel with the axis of a winding reel with slider fixed connection and, the deceleration wheel rotate with the pivot be connected and with the test wire contact.
Through adopting above-mentioned technical scheme, when the test wire was moving, speed reduction spring exerted pressure to the slider to make the epaxial gear reducer of pivot sticis the test wire all the time, rely on the velocity of motion that frictional force slowed down the test wire, the chuck velocity of motion is too fast when avoiding receiving the line and causes the injury to tester or box.
The invention is further configured to: the protective housing is internally and fixedly connected with a vertically arranged locking spring, the lower end of the locking spring is provided with a locking block, the locking block is provided with an arc-shaped groove matched with the test line towards one end of the clamping hole, and the inner wall of the arc-shaped groove is abutted to the test line.
A sliding hole is formed in the position, corresponding to the locking block, of the protective shell, and a shifting block penetrating through the sliding hole is arranged on one side, facing the sliding hole, of the locking block.
By adopting the technical scheme, after the wire is paid off, the coil spring still applies tension to the test wire at the end of the chuck, and at the moment, the locking spring applies downward pressure to the locking block, so that the arc-shaped groove of the locking block abuts against the test wire, the chuck is prevented from loosening due to automatic retraction of the test wire, and the stability during testing is improved; after the test is finished, the shifting block is pushed upwards by hands, and the shifting block drives the locking block to move upwards, so that the compression of the test wire is relieved, and the wire is convenient to take up.
The invention is further configured to: the rubber block is fixedly connected to the inner wall of the protective shell below the locking block, and a plurality of convex strips are arranged on one surface, facing the locking block, of the rubber block.
Through adopting above-mentioned technical scheme, the test wire top is compressed tightly by the locking piece, and the below is in contact with the sand grip of block rubber, and the sand grip has increased the area of contact of test wire with the block rubber, increases the frictional resistance of test wire to further improve the stability of test.
The invention is further configured to: the protective housing is located one side level of locking piece and is provided with chucking spring, chucking spring's axis is parallel with the axis of a winding drum, the one end fixedly connected with chucking piece of chucking spring orientation locking piece, the protective housing outer wall set up with chucking piece sliding connection's spout, the slot of pegging graft with the chucking piece is seted up towards one side of chucking piece to the locking piece, the chucking piece is provided with the inclined plane towards the one end of locking piece, the inclined plane upwards sets up from chucking piece bottom surface towards the locking piece slope.
Through adopting above-mentioned technical scheme, if only adopt the locking block to compress tightly the test wire, still there is the defect: when the wire is taken up, a tester always pushes the shifting block upwards by hands, which is laborious and inconvenient; the test line has upward thrust to the locking block, and the mode that the locking spring drives the locking block to compress has instability; therefore, when the arc-shaped groove of the locking block abuts against the test wire, the clamping spring drives the clamping block to extend into the slot, so that the position of the locking block is fixed, the abutting state of the locking block on the test wire is kept, and the test stability is further improved; in addition, when the wire is taken up, the shifting block is pushed upwards by a hand, the shifting block drives the locking block to move upwards, the component force of the slot to the inclined plane enables the clamping block to compress the clamping spring, when the locking block moves to the upper side of the clamping block, the clamping spring drives the clamping block to move to the lower side of the locking block, and the locking block is contacted with the clamping block after the hand is loosened, so that the compression on the test wire is relieved, a tester does not need to push the shifting block upwards by the hand all the time, and the wire taking-up device is labor-saving and convenient.
The invention is further configured to: and two ends of the winding drum extend outwards to form baffle rings for preventing the test wire from falling off.
Through adopting above-mentioned technical scheme, keep off the ring and play limiting displacement to the test wire, avoid the test wire to break away from the winding bobbin.
The invention is further configured to: the winding drum is provided with a wire clamping groove along the circumferential direction, the part of the test wire close to the plug and the plug are clamped with the wire clamping grooves, and the opening of each wire clamping groove is clamped with a fixing plate for fixing the test wire.
By adopting the technical scheme, when the wire is taken, the chuck is pulled outwards to drive the test wire to extend out of the clamping hole, and when the test wire drives the winding drum to rotate, the plug is fixed in the wire clamping groove and cannot swing around, so that the plug or the protective shell is prevented from being damaged.
The invention is further configured to: and two sides of the wire clamping groove close to one end of the plug are provided with taking grooves communicated with the wire clamping groove.
By adopting the technical scheme, the plug is conveniently taken out through the taking groove after the chuck is taken out.
The invention also aims to provide an electric power overhauling method which has the advantages of being capable of quickly taking up and taking down the test wire and high in testing efficiency.
The second purpose of the invention is realized by the following technical scheme:
an electric power overhaul method comprising the steps of:
paying off: opening the box cover, taking out the plug and the chuck, pulling the chuck outwards, driving the test wire to extend out of the clamping hole by the chuck, and driving the winding drum to rotate by the test wire and compress the coil spring;
wiring: connecting a plug of a test wire with a corresponding socket of the insulation tester, and connecting a chuck of the test wire with tested equipment;
and (3) overhauling: testing the insulation performance of the tested equipment, and maintaining or replacing the tested equipment with the insulation performance not up to the standard;
taking up: and after the chuck is loosened, the coil spring restores to a natural state and simultaneously drives the test wire at the chuck end to be wound around the periphery of the winding drum, and the speed reduction assembly reduces the winding speed of the test wire.
Through adopting above-mentioned technical scheme, because the test wire can not knot, the unwrapping wire is fast, after the test finishes, extract the plug and the chuck of test wire, fix the plug on the winding cylinder, loosen the chuck after, the spring resumes the test wire of drive chuck end in the time of natural state and convolutes in all sides of winding cylinder, the speed reduction subassembly can reduce the winding speed of test wire, avoid the chuck velocity of motion to cause the injury to tester or box at the excessive speed, it is efficient to receive the line automatically, and avoid many test wires to twine mutually, and the efficiency of software testing is improved.
In conclusion, the beneficial technical effects of the invention are as follows:
(1) the test wire is wound on the winding drum by arranging the fixed shaft, the coil spring and the winding drum, the test wire cannot be knotted, the paying-off is fast, after the test is finished, the plug and the chuck of the test wire are pulled out, the plug is fixed on the winding drum, and after the chuck is loosened, the coil spring restores the natural state and simultaneously drives the test wire at the chuck end to be wound on the periphery of the winding drum, so that the automatic winding efficiency is high, a plurality of test wires are prevented from being wound mutually, and the test efficiency is improved;
(2) by arranging the speed reducing assembly, when the test wire moves, the speed reducing spring applies pressure to the sliding block, so that the speed reducing wheel on the rotating shaft always presses the test wire, the moving speed of the test wire is reduced by depending on the friction force, and the damage to a tester or a box body caused by the excessively high moving speed of the chuck during wire rewinding is avoided;
(3) by arranging the locking spring, the locking block and the shifting block, the locking spring applies downward pressure to the locking block, so that the arc-shaped groove of the locking block abuts against the test wire, the chuck is prevented from loosening due to automatic retraction of the test wire, and the stability during testing is improved; after the test is finished, the shifting block is pushed upwards by hands, and the shifting block drives the locking block to move upwards, so that the compression on the test wire is relieved, and the wire can be conveniently taken up;
(4) by arranging the clamping spring, the clamping block and the slot, when the arc-shaped groove of the locking block abuts against the test wire, the clamping spring drives the clamping block to extend into the slot, so that the position of the locking block is fixed, the abutting state of the locking block on the test wire is kept, and the test stability is further improved; in addition, when the wire is taken up, the shifting block is pushed upwards by a hand, the shifting block drives the locking block to move upwards until the clamping spring drives the clamping block to move to the position below the locking block, and the locking block is in contact with the clamping block after the hand is loosened, so that the compression of a test wire is relieved, a tester does not need to push the shifting block upwards by the hand all the time, and the wire taking-up device is labor-saving and convenient.
Drawings
FIG. 1 is a schematic view of a power overhaul apparatus with the cover of the apparatus open;
FIG. 2 is a schematic structural diagram of the electric power overhaul device after hiding a box body, a box cover and an insulation tester;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a schematic view of the hidden protective case of FIG. 2;
FIG. 5 is a schematic view of a portion of the structure of FIG. 4;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 7 is an enlarged view of portion D of FIG. 6;
FIG. 8 is a cross-sectional view taken along line B-B of FIG. 3;
fig. 9 is an enlarged view of a portion C in fig. 3.
Reference numerals: 1. a box body; 2. a box cover; 3. an insulation tester; 4. a placement groove; 5. a fixed shaft; 6. a coil spring; 7. a winding drum; 8. a test line; 9. a plug; 10. a chuck; 11. a protective shell; 12. a jack; 13. a clamping hole; 14. a deceleration spring; 15. a guide bar; 16. a slider; 17. a rotating shaft; 18. a speed reducing wheel; 19. a locking spring; 20. a locking block; 21. an arc-shaped slot; 22. a slide hole; 23. shifting blocks; 24. a rubber block; 25. a convex strip; 26. a chucking spring; 27. a clamping block; 28. a chute; 29. dialing a strip; 30. a slot; 31. a bevel; 32. a baffle ring; 33. a wire clamping groove; 34. a fixing plate; 35. and taking the groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows: referring to fig. 1, an electric power overhauls device, includes box 1, the case lid 2 of cuboid form, installs insulation tester 3 in the box 1, has seted up standing groove 4 in the box 1. Referring to fig. 2 and 3, a fixed shaft 5 is fixedly connected to the inner wall of the placement groove 4, the axis of the fixed shaft 5 is parallel to the bottom wall of the box body 1, and coil springs 6 are fixedly connected to the circumferential side of the fixed shaft 5, in this embodiment, four coil springs 6 are provided, a winding drum 7 rotatably connected to the fixed shaft 5 is provided on the circumferential sides of the four coil springs 6, one end of each coil spring 6, which is far away from the fixed shaft 5, is fixedly connected to the inner wall of the winding drum 7, and a test line 8 is wound around the circumferential side of the.
Referring to fig. 3 and 4, a plug 9 and a collet 10 are respectively connected to both ends of the test wire 8, and the plug 9 is disposed at one end of the test wire 8 close to the insulation tester 3. A protective shell 11 is arranged on the periphery of the winding drum 7, an insertion hole 12 and a clamping hole 13 are formed in the protective shell 11, the insertion hole 12 and the clamping hole 13 are respectively used for the plug 9 and the clamping head 10 to penetrate through, the clamping head 10 is circular, the clamping hole 13 is rectangular, and the outer diameter of the clamping head 10 is larger than the length of the clamping hole 13.
Referring to fig. 4 and 5, a wire clamping groove 33 is formed in the winding drum 7 along the circumferential direction of the winding drum, the portion, close to the plug 9, of the testing wire 8 and the portion, close to the plug 9, of the plug 9 are clamped with the wire clamping grooves 33, a fixing plate 34 for fixing the testing wire 8 is clamped at an opening of the wire clamping groove 33, one end of the fixing plate 34 is hinged to one side of the wire clamping groove 33, the other end of the fixing plate is elastically clamped to the other side of the wire clamping groove 33, two sides, close to one end of the plug 9, of the wire clamping groove 33 are provided with taking grooves 35. The both ends of winding cylinder 7 outwards extend and are provided with the fender ring 32 that prevents that test wire 8 from droing, keep off ring 32 and play limiting displacement to test wire 8, avoid test wire 8 to break away from winding cylinder 7.
When equipment or a sample needs to be tested, the box cover 2 is opened, the chuck 10 is pulled outwards, the chuck 10 drives the testing wire 8 to extend out of the clamping hole 13, the testing wire 8 drives the winding drum 7 to rotate and compress the coil spring 6, when the length of the chuck 10 is enough to connect the equipment or the sample, the plug 9 is taken out, and the plug 9 is fixed in the wire clamping groove 33 and cannot swing around, so that the plug 9 or the protective shell 11 is prevented from being damaged. The plug 9 is connected with a socket corresponding to the insulation tester 3, the chuck 10 of the test wire 8 is connected with the tested equipment, after all the test wires 8 are connected according to requirements, the insulation performance of the equipment or a sample is tested, after the test is finished, the plug 9 and the chuck 10 of the test wire 8 are pulled out, the plug 9 is fixed on the winding drum 7, and after the chuck 10 is loosened, the coil spring 6 is restored to a natural state and simultaneously drives the test wire 8 at the end of the chuck 10 to be wound on the periphery of the winding drum 7, so the invention has the advantages of rapid winding and unwinding of the test wire 8 and high test efficiency.
Referring to fig. 6 and 7, in order to reduce the winding speed of the test wire 8, the inner wall of the protective case 11 is provided with a deceleration assembly for abutting against the test wire 8 and reducing the winding speed of the test wire 8. The speed reduction assembly comprises a speed reduction spring 14, a guide rod 15, sliders 16, a rotating shaft 17 and a speed reduction wheel 18, the speed reduction spring 14 is arranged along the radial direction of the winding drum 7, one end of the speed reduction spring is fixedly connected with the inner wall of the protective shell 11, the speed reduction spring 14 is in a compression state and is arranged into two, the sliders 16 are fixedly connected with the other end of the speed reduction spring 14, the guide rod 15 is arranged inside the speed reduction spring 14 and is arranged along the axial direction of the speed reduction spring 14, one end of the guide rod 15 is fixedly connected with the protective shell 11, the other end of the guide rod is inserted into the sliders 16 and is in sliding connection with the sliders 16, the rotating shaft 17 is fixedly connected with the two sliders 16, the rotating shaft 17 is parallel to the axial line of the winding drum 7, the speed reduction wheel 18 is arranged around the rotating shaft 17 and is in. When the test wire 8 moves, the speed reducing spring 14 applies pressure to the sliding block 16, so that the speed reducing wheel 18 on the rotating shaft 17 is always pressed on the test wire 8, the moving speed of the test wire 8 is reduced by means of friction, and damage to a tester or the box body 1 caused by the fact that the chuck 10 moves too fast when the wire is taken up is avoided. When the wire is wound, the speed reducing wheel 18 can enable the test wire 8 to be wound around the periphery of the winding drum 7 in order, and the limiting effect is achieved.
Referring to fig. 8 and 9, after the wire is paid off, the coil spring 6 still applies a pulling force to the test wire 8 at the end of the chuck 10, for the stability during the test, a vertically arranged locking spring 19 is fixedly connected in the protective housing 11, a rectangular locking block 20 is fixedly connected to the lower end of the locking spring 19, an arc-shaped groove 21 matched with the test wire 8 is formed in one end, facing the clamping hole 13, of the locking block 20, and the inner wall of the arc-shaped groove 21 is abutted to the test wire 8; a sliding hole 22 is formed in the protective shell 11 at a position corresponding to the locking block 20, and a shifting block 23 penetrating through the sliding hole 22 is arranged on one side of the locking block 20 facing the sliding hole 22. The locking spring 19 applies downward pressure to the locking block 20, so that the arc-shaped groove 21 of the locking block 20 abuts against the test wire 8, the chuck 10 is prevented from loosening due to automatic retraction of the test wire 8, and the stability during testing is improved; after the test is finished, the shifting block 23 is pushed upwards by hand, and the shifting block 23 drives the locking block 20 to move upwards, so that the compression of the test wire 8 is released, and the wire can be conveniently taken up.
The inner wall of the protective shell 11 below the locking block 20 is fixedly connected with a rubber block 24, and one surface of the rubber block 24 facing the locking block 20 is provided with a plurality of convex strips 25. The raised strips 25 increase the contact area of the test line 8 and the rubber block 24, increase the frictional resistance of the test line 8, and further improve the test stability.
If only the locking block 20 is used to compress the test wire 8, two drawbacks remain: on one hand, when the wire is taken up, a tester needs to push the shifting block 23 upwards by hands all the time, which is laborious and inconvenient; on the other hand, the test wire 8 has an upward pushing force on the locking block 20, and the locking spring 19 has instability in the way of pressing the locking block 20. Therefore, the protective housing 11 is horizontally and fixedly connected with the chucking spring 26 at one side of the locking block 20, the axis of the chucking spring 26 is parallel to the axis of the winding drum 7, the chucking block 27 is fixedly connected with the chucking spring 26 at one end facing the locking block 20, the outer wall of the protective housing 11 is provided with a sliding groove 28 connected with the chucking block 27 in a sliding manner, the chucking block 27 is provided with a shifting bar 29 protruding out of the sliding groove 28, the locking block 20 is provided with a slot 30 inserted into the chucking block 27 at one side facing the chucking block 27, the chucking block 27 is provided with an inclined surface 31 at one end facing the locking block 20, and the inclined surface 31 is arranged obliquely upwards from the bottom surface of the chucking block 27 towards the locking block 20.
When the arc-shaped groove 21 of the locking block 20 abuts against the test wire 8, the chucking spring 26 drives the chucking block 27 to extend into the slot 30, so that the position of the locking block 20 is fixed, the abutting state of the test wire 8 is kept, and the test stability is further improved; in addition, when the wire is taken up, the shifting block 23 is pushed upwards by a hand, the shifting block 23 drives the locking block 20 to move upwards, the component force of the slot 30 to the inclined plane 31 enables the clamping block 27 to compress the clamping spring 26, when the locking block 20 moves to the upper side of the clamping block 27, the clamping spring 26 drives the clamping block 27 to move to the lower side of the locking block 20, the locking block 20 is in contact with the clamping block 27 after the hand is loosened, the compression on the test wire 8 is released, the testing personnel do not need to push the shifting block 23 upwards by the hand all the time, and the wire taking-up device is labor-saving and convenient.
The implementation principle of the first embodiment is as follows: when equipment or a sample needs to be tested, the box cover 2 is opened, the chuck 10 is pulled outwards, the chuck 10 drives the test wire 8 to extend out of the clamping hole 13, the test wire 8 drives the winding drum 7 to rotate and compress the coil spring 6, when the chuck 10 is long enough to connect the equipment or the sample, the plug 9 is taken out from the clamping groove 33 through the taking groove 35, the plug 9 is connected with the corresponding socket of the insulation tester 3, the chuck 10 of the test wire 8 is connected with the tested equipment, after all the test wires 8 are connected as required, the shifting strip 29 is shifted to enable the clamping block 27 to compress the clamping spring 26, the locking spring 19 extends to drive the locking block 20 to move downwards, the arc-shaped groove 21 abuts against the test wire 8, the clamping spring 26 drives the clamping block 27 to extend into the slot 30, the position of the locking block 20 is fixed, the abutting state of the test wire 8 is kept, and the test stability is improved.
The insulation performance of the device or the sample is tested, after the test is finished, the plug 9 and the chuck 10 of the test wire 8 are pulled out, the plug 9 is fixed in a clamping groove 33 on the winding drum 7, the shifting block 23 is pushed upwards by hand, the shifting block 23 drives the locking block 20 to move upwards, the component force of the slot 30 to the inclined plane 31 enables the clamping block 27 to compress the clamping spring 26, when the locking block 20 moves to the upper side of the clamping block 27, the clamping spring 26 drives the clamping block 27 to move to the lower side of the locking block 20, and after the hand is loosened, the locking block 20 is in contact with the clamping block 27, so that the compression on the test wire 8 is released, a tester does not need to push the shifting block 23 upwards by hand all the time, and the test wire is labor.
After the chuck 10 is loosened, the coil spring 6 restores to a natural state and simultaneously drives the test wire 8 at the end of the chuck 10 to be wound around the winding drum 7, and the speed-reducing wheel 18 can reduce the winding speed of the test wire 8, so that the situation that the tester or the box body 1 is injured due to the fact that the chuck 10 moves too fast is avoided. Therefore, the invention has the advantages of rapid retraction of the test wire 8 and high test efficiency.
Example two: an electric power overhaul method comprising the steps of:
paying off: opening the box cover 2, taking out the plug 9 and the chuck 10, pulling the chuck 10 outwards, enabling the chuck 10 to drive the test wire 8 to extend out of the clamping hole 13, and enabling the test wire 8 to drive the winding drum 7 to rotate and compress the coil spring 6;
wiring: connecting a plug 9 of the test wire 8 with a corresponding socket of the insulation tester 3, and connecting a chuck 10 of the test wire 8 with tested equipment;
and (3) overhauling: testing the insulation performance of the tested equipment, and maintaining or replacing the tested equipment with the insulation performance not up to the standard;
taking up: and pulling out the plug 9 and the chuck 10 of the test wire 8, loosening the chuck 10, enabling the coil spring 6 to recover the natural state and simultaneously driving the test wire 8 at the end of the chuck 10 to be wound on the peripheral side of the winding drum 7, and reducing the winding speed of the test wire 8 by the speed reducing assembly.
The implementation principle of the second embodiment is the same as that of the first embodiment, and the description thereof is omitted.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. The utility model provides an electric power overhauls device, includes box (1), case lid (2) and is located insulating tester (3) of box (1), seted up standing groove (4) in box (1), its characterized in that, fixedly connected with fixed axle (5) on the inner wall of standing groove (4), the axis of fixed axle (5) is on a parallel with box (1) diapire, week side fixedly connected with a plurality of wind springs (6) of fixed axle (5), week side of wind spring (6) is provided with winding reel (7) of being connected with fixed axle (5) rotation, the one end that fixed axle (5) were kept away from to wind spring (6) is connected with the inner wall fixed of winding reel (7), week side winding of winding reel (7) is equipped with test wire (8), the both ends of test wire (8) are provided with plug (9) and chuck (10) respectively, plug (9) set up in the one end that test wire (8) are close to insulating tester (3), a protective shell (11) is arranged on the peripheral side of the winding drum (7), and an insertion hole (12) and a clamping hole (13) through which a plug (9) and a clamping head (10) respectively penetrate are formed in the protective shell (11);
the inner wall of the protective shell (11) is provided with a speed reduction assembly which is used for abutting against the test wire (8) and reducing the winding speed of the test wire (8);
a vertically arranged locking spring (19) is fixedly connected in the protective shell (11), a locking block (20) is arranged at the lower end of the locking spring (19), an arc-shaped groove (21) matched with the test wire (8) is formed in one end, facing the clamp hole (13), of the locking block (20), and the inner wall of the arc-shaped groove (21) is abutted to the test wire (8);
a sliding hole (22) is formed in the position, corresponding to the locking block (20), of the protective shell (11), and a shifting block (23) penetrating through the sliding hole (22) is arranged on one side, facing the sliding hole (22), of the locking block (20);
one side level that protective housing (11) is located locking piece (20) is provided with chucking spring (26), the axis of chucking spring (26) is parallel with the axis of a winding reel (7), one end fixedly connected with chucking piece (27) of chucking spring (26) orientation locking piece (20), spout (28) with chucking piece (27) sliding connection are seted up to protective housing (11) outer wall, slot (30) of pegging graft with chucking piece (27) are seted up towards one side of chucking piece (27) in locking piece (20), chucking piece (27) are provided with inclined plane (31) towards the one end of locking piece (20), inclined plane (31) are upwards set up from chucking piece (27) bottom surface towards locking piece (20) slope.
2. An electric service device according to claim 1, characterized in that the speed reduction assembly comprises a speed reduction spring (14), a guide rod (15), a slide block (16), a rotating shaft (17) and a speed reduction wheel (18), the speed reducing spring (14) is arranged along the radial direction of the winding drum (7) and one end of the speed reducing spring is fixedly connected with the inner wall of the protective shell (11), the speed reducing spring (14) is in a compressed state, the sliding block (16) is fixedly connected with the other end of the speed reducing spring (14), the guide rod (15) is positioned in the decelerating spring (14) and arranged along the axial direction of the decelerating spring (14), one end of the guide rod (15) is fixedly connected with the protective shell (11), the other end of the rotating shaft is connected with a sliding block (16) in a sliding way, the rotating shaft (17) is fixedly connected with the sliding block (16) and is parallel to the axis of the winding drum (7), the speed reducing wheel (18) is rotationally connected with the rotating shaft (17) and is in contact with the test line (8).
3. The electric power overhaul device according to claim 1, wherein a rubber block (24) is fixedly connected to the inner wall of the protective shell (11) below the locking block (20), and a plurality of convex strips (25) are arranged on one surface, facing the locking block (20), of the rubber block (24).
4. An electric power overhaul device according to claim 1, wherein both ends of the winding drum (7) are provided with a stop ring (32) extending outwards to prevent the test wire (8) from falling off.
5. The electric power overhaul device of claim 1, characterized in that a clamping groove (33) is opened along its circumference in the winding drum (7), the part of the test wire (8) close to the plug (9) and the plug (9) are clamped with the uniform clamping groove (33), and a fixing plate (34) for fixing the test wire (8) is clamped at the opening of the clamping groove (33).
6. The electric power overhaul device according to claim 5, wherein two sides of the wire clamping groove (33) close to one end of the plug (9) are provided with taking grooves (35) communicated with the wire clamping groove.
7. A method of servicing an electrical service apparatus as claimed in any one of claims 1 to 6, comprising the steps of:
paying off: opening the box cover (2), taking out the plug (9) and the chuck (10), pulling the chuck (10) outwards, driving the test wire (8) to extend out of the clamping hole (13) by the chuck (10), and driving the winding cylinder (7) to rotate and compress the coil spring (6) by the test wire (8);
wiring: connecting a plug (9) of the test wire (8) with a corresponding socket of the insulation tester (3), and connecting a chuck (10) of the test wire (8) with tested equipment;
and (3) overhauling: testing the insulation performance of the tested equipment, and maintaining or replacing the tested equipment with the insulation performance not up to the standard;
taking up: the plug (9) and the chuck (10) of the test wire (8) are pulled out, when the test wire is taken up, the shifting block (23) is pushed upwards by hand, the shifting block (23) drives the locking block (20) to move upwards, the clamping block (27) compresses the clamping spring (26) by the component force of the slot (30) to the inclined plane (31), when the locking block (20) moves to the upper side of the clamping block (27), the clamping spring (26) drives the clamping block (27) to move to the lower side of the locking block (20), the locking block (20) is in contact with the clamping block (27) after the hand is loosened, so that the compression on the test wire (8) is released, the coil spring (6) restores to a natural state and simultaneously drives the test wire (8) at the end of the chuck (10) to be wound on the peripheral side of the winding drum (7), and the speed reducing assembly reduces the winding speed of the test wire (.
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| CN201910848368.6A CN110589635B (en) | 2019-09-09 | 2019-09-09 | Electric power overhaul device and overhaul method |
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| CN201910848368.6A CN110589635B (en) | 2019-09-09 | 2019-09-09 | Electric power overhaul device and overhaul method |
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| CN110589635B true CN110589635B (en) | 2020-11-06 |
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| CN113671328B (en) * | 2021-09-15 | 2023-02-07 | 山东金科电气股份有限公司 | Signal acquisition device for transformer partial discharge online monitoring device |
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| CN116973608B (en) * | 2023-09-21 | 2024-01-09 | 国网江苏省电力有限公司泰州供电分公司 | Portable electric power measuring equipment |
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Address after: 710000, No. 10501, Unit 1, Building 1, Smart International Center Project, north of Fengcheng 10th Road and east of Wenjing Road, Economic Development Zone, Xi'an City, Shaanxi Province Patentee after: Jiuyi Power Engineering Co.,Ltd. Address before: No. 10501, unit 1, building 1, wisdom International Center project, east of Wenjing Road, north of Fengcheng 10th Road, economic development zone, Xi'an City, Shaanxi Province, 710018 Patentee before: Shaanxi joy Power Engineering Co.,Ltd. |