CN117110970A - Voltage and current transformer testing device and method - Google Patents
Voltage and current transformer testing device and method Download PDFInfo
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- CN117110970A CN117110970A CN202311327877.7A CN202311327877A CN117110970A CN 117110970 A CN117110970 A CN 117110970A CN 202311327877 A CN202311327877 A CN 202311327877A CN 117110970 A CN117110970 A CN 117110970A
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- 238000012360 testing method Methods 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 60
- 230000008569 process Effects 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims description 20
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 16
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 16
- 241001330002 Bambuseae Species 0.000 claims description 16
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 16
- 239000011425 bamboo Substances 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 7
- 210000003437 trachea Anatomy 0.000 description 7
- 238000005259 measurement Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000013021 overheating Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
- B65G15/58—Belts or like endless load-carriers with means for holding or retaining the loads in fixed position, e.g. magnetic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/24—Gearing between driving motor and belt- or chain-engaging elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
-
- 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
-
- 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
- G01R1/0416—Connectors, terminals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a voltage and current transformer testing device and method, and belongs to the technical field of voltage and current transformer testing. The utility model provides a voltage-current transformer testing arrangement, includes the mount pad, still includes: the transmission part is arranged on the mounting seat and used for transmitting the voltage and current transformer; the left and right positioning parts are arranged on the mounting seat and used for positioning left and right positions of the voltage and current transformer; front and rear positioning parts arranged on the mounting seat; the device has the advantages that the parts which are not involved in the device are the same as or can be realized by adopting the prior art, the power receiving contact and the test needle are automatically contacted with and separated from the terminals of the voltage-current transformer, and a power supply is not required to be plugged and pulled manually, so that electric shock of workers is avoided, and a plurality of groups of the power receiving contact and the test needle are used for testing the voltage-current transformer in the rotating process, so that a large number of voltage-current transformers are tested in a staggered manner, the testing efficiency is improved, and meanwhile, the labor cost is reduced.
Description
Technical Field
The invention relates to the technical field of voltage and current transformer testing, in particular to a device and a method for testing a voltage and current transformer.
Background
A voltage-current transformer is a device for measuring voltage and current. The high voltage and the high current are converted into low voltage and low current suitable for measurement, so that the normal operation of the measurement and protection equipment is facilitated, and the voltage-current transformer is required to be tested after being produced and assembled.
In the prior art, when the voltage and current transformers are tested, most of the voltage and current transformers are tested manually by adopting a universal meter or other testing tools, the number of the voltage and current transformers is large in production line production, a plurality of people are required to test, the labor cost is high, one wire is required to be plugged and unplugged once in each time of manual test, the testing efficiency is reduced, and the risk that workers are shocked by current exists in manually-reciprocated plugging and unplugged wires.
Disclosure of Invention
The invention aims to solve the problems of high risk and low efficiency of manual detection in the prior art, and provides a voltage and current transformer testing device and a voltage and current transformer testing method.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a voltage-current transformer testing arrangement, includes the mount pad, still includes: the transmission part is arranged on the mounting seat and used for transmitting the voltage and current transformer; the left and right positioning parts are arranged on the mounting seat and used for positioning left and right positions of the voltage and current transformer; the front and rear positioning parts are arranged on the mounting seat and used for positioning the voltage and current transformer front and rear; the adjusting part is arranged on the mounting seat, a first mounting cylinder is rotatably arranged on the adjusting part, a telescopic part is arranged on the first mounting cylinder, and the output end of the telescopic part is fixedly connected with a test needle and an electric contact; the telescopic parts are provided with a plurality of groups and are uniformly distributed on the wall of the first mounting cylinder in a circumference manner; and in the process of transmitting the voltage-current transformer by the transmission part, the power connection contact and the test needle on the telescopic part are contacted with the anode and the cathode of the voltage-current transformer to test the voltage-current transformer.
In order to be convenient for carry out the transmission to voltage current transformer, preferably, the transmission portion is including rotating respectively two transmission rollers of connecting on the mount pad both ends, two rotate on the transmission roller and be connected with two sets of symmetry and set up the conveyer belt at transmission roller both ends, two sets of rotate on the conveyer belt and be connected with many roller, many roller evenly distributed is on the lateral wall of conveyer belt, fixedly connected with first motor on the lateral wall of mount pad, the output shaft of first motor links to each other with the transmission roller is fixed.
In order to facilitate adjustment of different types of voltage-current transformers, preferably, the adjustment section includes: two guide rails fixedly connected to two sides of the mounting seat, and sliding blocks are connected to the two guide rails in a sliding manner; the device comprises a first mounting plate, wherein a second mounting plate is fixedly connected to the side wall of the first mounting plate, a third motor is fixedly connected to the bottom of the second mounting plate, a threaded cylinder is fixedly connected to the output end of the third motor, the threaded cylinder is rotationally connected with the first mounting plate, a second screw rod is connected to the threaded cylinder in an internal thread manner, and the second screw rod is fixedly connected with a sliding block; the second motor is fixedly connected to the end head of the guide rail, the output end of the second motor is fixedly connected with a first screw rod, and the first screw rod is in threaded connection with the sliding block; and the output shaft of the fourth motor is fixedly connected with the first mounting cylinder.
Preferably, the telescopic part comprises six piston barrels fixedly connected to the side wall of the first mounting barrel, the six piston barrels are communicated with one another towards one end in the first mounting barrel, the six piston barrels are slidably connected with one another in the piston barrels, the first piston plate is fixedly connected with a mounting rod on the first piston plate, the power receiving contact and the test needle are fixedly connected to one end, far away from the first piston plate, of the mounting rod, a first spring is arranged in the piston barrel, and two ends of the first spring are respectively propped against the inner walls of the first piston plate and the piston barrel.
Preferably, the first mounting frame is fixedly connected with in the first mounting cylinder, fixedly connected with measuring apparatu on the first mounting frame, fixedly connected with transformer on the measuring apparatu, fixedly connected with is connected with the wire that connects the electrical contact to link to each other on the transformer, fixedly connected with is connected with the signal line that links to each other with the test needle on the measuring apparatu, be provided with conductive slip ring on the hollow shaft of the one end that the fourth motor was kept away from to the first mounting cylinder, conductive slip ring is used for carrying the electric energy to transformer and measuring apparatu.
In order to facilitate positioning, preferably, the left and right positioning parts comprise a second mounting frame fixedly connected to the side wall of the mounting seat, a double-head reciprocating screw rod is rotatably connected to the second mounting frame, two ends of the double-head reciprocating screw rod are respectively connected with a second mounting cylinder in a threaded manner, a top plate is slidably connected to the second mounting cylinders, and the output end of the top plate is fixedly connected with a connecting rod; two double-head reciprocating screw rods are arranged on the two reciprocating screw rods and are respectively arranged at the bottoms of the two ends of the mounting seat, and the two double-head reciprocating screw rods synchronously rotate through a first belt pulley group; the first push plates are fixedly connected to the two connecting rods on the same side, the second springs are arranged in the second mounting cylinders, the top plates at the two ends of the second springs are respectively abutted against the second mounting cylinders, the gearbox is fixedly connected to the outer wall of the mounting seat, the input shaft of the gearbox is fixedly connected with the transmission roller, and the output shaft of the gearbox and one of the double-head reciprocating screw rods synchronously rotate through the second pulley group.
In order to facilitate positioning, further, the front-rear positioning portion includes: the plurality of baffles are uniformly fixed on the outer surface of the conveying belt and penetrate through the inner hole of the annular first push plate; the fixed connection is in the portal frame at mount pad top, fixedly connected with arc installation section of thick bamboo on the portal frame, sliding connection has the second piston board on the arc installation section of thick bamboo, fixedly connected with arc pole on the second piston board, fixedly connected with second push pedal on the arc pole, the arc axis of arc pole is coaxial with the arc axis of arc installation section of thick bamboo, be provided with the third spring in the arc installation section of thick bamboo, the both ends of third spring offset with second piston board and arc installation section of thick bamboo respectively.
In order to reduce friction, preferably, the inboard fixedly connected with first reposition of redundant personnel case of mount pad, first reposition of redundant personnel case sets up in the middle of upper and lower two-layer roller, jet slot has been seted up at first reposition of redundant personnel case top, jet hole is towards the centre of two sets of rollers, fixedly connected with extends to the second trachea in the mount pad outside on the first reposition of redundant personnel case, connector on the second trachea, fixedly connected with first trachea on the connector, be provided with the rotary joint on the hollow shaft of first installation section of thick bamboo, the outer ring and the fixed linking to each other of first trachea of rotary joint, the inlet port has been seted up to the one end that the electrical slip ring was kept away from to first installation section of thick bamboo, is provided with the check valve that is used for admitting air to first installation section of thick bamboo in the inlet port on the inlet port, be provided with the check valve that is used for admitting air to the connector in the first trachea.
In order to reduce friction, further, be provided with the second shunt case on the first push pedal, the reposition of redundant personnel hole towards voltage current transformer has been seted up to the lateral wall of second shunt case, the input of second shunt case passes through the third trachea and links to each other with arc installation section of thick bamboo, the bottom of arc installation section of thick bamboo is provided with the inlet port, and the inlet port is provided with the check valve that is used for admitting air to the arc installation section of thick bamboo, be provided with the check valve that is used for admitting air to the second shunt case on the third trachea.
A testing method of a voltage-current transformer comprises the following steps:
step one, placing a voltage and current transformer on a roll shaft at the end of a transmission radical, and enabling positive and negative terminals of the voltage and current transformer to face a first mounting tube;
step two, driving the transmission belt to rotate to transmit the voltage and current transformer;
step three, the first motor drives the double-head reciprocating screw rod to rotate while conveying, the double-head reciprocating screw rod drives two groups of symmetrical first pushing plates to move towards the middle of the roll shaft at the same time, and the voltage current transformer is aligned left and right;
step four, pushing the voltage-current transformer to slide on the roller shaft by the second pushing plate while conveying, so that the voltage-current transformer is propped against the baffle;
step five, in the process of transmitting the voltage and current transformer by the transmission belt, the test needle and the electric contact rotate by taking the first mounting cylinder as an axis and are contacted with a terminal of the voltage and current transformer in the rotating process, the electric contact supplies power for the voltage and current transformer, and the test is carried out on the voltage and current transformer;
step six, in the testing process, the transmission belt and the first mounting cylinder continuously rotate, in the process, the mounting rod drives the first piston plate to slide towards the interior of the piston cylinder, the first spring is driven to shrink, after the voltage-current transformer terminal moves to the position right below the first mounting cylinder, the transmission belt and the first mounting cylinder continuously rotate, the first spring rebounds to enable the mounting rod to slide towards the outside of the piston cylinder, and after the mounting rod slides to the limit position, the terminal of the voltage-current transformer which continuously moves automatically breaks away from the power contact and the test needle.
Compared with the prior art, the invention provides a voltage-current transformer testing device, which has the following beneficial effects:
the device has the advantages that the parts which are not involved in the device are the same as or can be realized by adopting the prior art, the power receiving contact and the test needle are automatically contacted with and separated from the terminals of the voltage-current transformer, and a power supply is not required to be plugged and pulled manually, so that electric shock of workers is avoided, and the voltage-current transformers are tested in the rotating process through a plurality of groups of the power receiving contacts and the test needles, so that a large number of voltage-current transformers are tested in a staggered mode, the testing efficiency is improved, and meanwhile, the labor cost is reduced.
Drawings
Fig. 1 is a schematic diagram of a three-dimensional structure of a voltage-current transformer testing device according to the present invention;
fig. 2 is a schematic diagram of a three-dimensional structure of a voltage-current transformer testing device according to the present invention;
fig. 3 is a perspective sectional view of a voltage-current transformer testing device according to the present invention;
fig. 4 is a schematic structural diagram of a portion a in fig. 1 of a voltage-current transformer testing apparatus according to the present invention;
fig. 5 is a schematic structural diagram of a portion B of fig. 3 of a voltage-current transformer testing apparatus according to the present invention;
fig. 6 is a schematic structural diagram of a portion C in fig. 3 of a voltage-current transformer testing apparatus according to the present invention;
FIG. 7 is a schematic structural diagram of an arc-shaped mounting tube of a voltage-current transformer testing device according to the present invention;
fig. 8 is a schematic diagram of a perspective structure of a double-ended reciprocating screw rod of a voltage and current transformer testing device according to the present invention.
In the figure: 1. a mounting base; 2. a conveying roller; 3. a first motor; 4. a transmission belt; 5. a roll shaft; 6. a guide rail; 7. a slide block; 8. a first screw rod; 9. a second motor; 10. a first mounting plate; 11. a second mounting plate; 12. a third motor; 13. a thread cylinder; 14. a first mounting cylinder; 15. a piston cylinder; 16. a first piston plate; 17. a mounting rod; 18. an electrical contact; 19. a test needle; 20. a first spring; 21. a first mounting frame; 22. a measuring instrument; 221. a transformer; 23. a rotary joint; 231. a first air tube; 24. a conductive slip ring; 25. a connector; 26. a second air pipe; 27. a first split box; 28. a jet slot; 29. a second mounting frame; 30. double-ended reciprocating screw rods; 31. a first pulley set; 32. a second mounting cylinder; 33. a connecting rod; 34. a top plate; 35. a second spring; 36. a first push plate; 37. a baffle; 38. a portal frame; 39. an arc-shaped mounting cylinder; 391. a second piston plate; 40. an arc-shaped rod; 41. a second push plate; 42. a third spring; 43. a third air pipe; 44. a diversion aperture; 45. a gearbox; 46. a second belt pulley set; 47. a fourth motor; 48. and a second separator tank.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Examples:
referring to fig. 1 to 8, a voltage-current transformer testing apparatus includes a mounting base 1, and further includes: the transmission part is arranged on the mounting seat 1 and is used for transmitting a voltage current transformer, the transmission part comprises two transmission rollers 2 which are respectively connected to the two ends of the mounting seat 1 in a rotating mode, two groups of transmission belts 4 which are symmetrically arranged at the two ends of the transmission rollers 2 are connected to the two transmission rollers 2 in a rotating mode, a plurality of roller shafts 5 are connected to the two groups of transmission belts 4 in a rotating mode, the roller shafts 5 are uniformly distributed on the side wall of the transmission belt 4, a first motor 3 is fixedly connected to the side wall of the mounting seat 1, and an output shaft of the first motor 3 is fixedly connected with the transmission rollers 2.
The first motor 3 is started, the first motor 3 drives the transmission roller 2 to rotate, the transmission roller 2 drives the transmission belt 4 to rotate, and accordingly the roller shafts 5 are driven to move, wherein the number of the roller shafts 5 is 80-200, and the number of the roller shafts 5 is set according to the length of the transmission belt 4.
Referring to fig. 1, the device further includes an adjusting portion provided on the mount 1, the adjusting portion including: two guide rails 6 fixedly connected to two sides of the mounting seat 1, and sliding blocks 7 are connected to the two guide rails 6 in a sliding manner; the first mounting plate 10, the second mounting plate 11 is fixedly connected to the side wall of the first mounting plate 10, the third motor 12 is fixedly connected to the bottom of the second mounting plate 11, the threaded cylinder 13 is fixedly connected to the output end of the third motor 12, the threaded cylinder 13 is rotationally connected with the first mounting plate 10, the second screw rod is connected to the inner thread of the threaded cylinder 13 in a threaded manner, and the second screw rod is fixedly connected with the sliding block 7; the second motor 9 is fixedly connected to the end of the guide rail 6, the output end of the second motor 9 is fixedly connected with the first screw rod 8, and the first screw rod 8 is in threaded connection with the sliding block 7; a fourth motor 47 fixedly connected to the first mounting plate 10, an output shaft of the fourth motor 47 being fixedly connected to the first mounting cylinder 14; the adjusting part is rotatably provided with a first mounting cylinder 14, the first mounting cylinder 14 is provided with a telescopic part, and the output end of the telescopic part is fixedly connected with a test needle 19 and an electric contact 18; the telescopic parts are provided with a plurality of groups and are circumferentially and uniformly distributed on the wall of the first mounting cylinder 14; in the process of transmitting the voltage-current transformer by the transmission part, an electrical contact 18 and a test needle 19 on a telescopic part are in contact with the anode and the cathode of the voltage-current transformer to test the voltage-current transformer, wherein the telescopic part comprises six piston cylinders 15 fixedly connected to the side wall of a first mounting cylinder 14, the six piston cylinders 15 are communicated with each other towards one end in the first mounting cylinder 14, the six piston cylinders 15 are all in sliding connection with a first piston plate 16, a mounting rod 17 is fixedly connected to the first piston plate 16, the electrical contact 18 and the test needle 19 are fixedly connected to one end, far away from the first piston plate 16, of the mounting rod 17, a first spring 20 is arranged in the piston cylinder 15, and two ends of the first spring 20 are respectively propped against the inner walls of the first piston plate 16 and the piston cylinder 15; the first mounting frame 21 is fixedly connected in the first mounting cylinder 14, the measuring instrument 22 is fixedly connected on the first mounting frame 21, the transformer 221 is fixedly connected on the measuring instrument 22, the lead wire connected with the electric contact 18 is fixedly connected on the transformer 221, the signal wire connected with the test needle 19 is fixedly connected on the measuring instrument 22, the conductive slip ring 24 is arranged on the hollow shaft of one end of the first mounting cylinder 14 far away from the fourth motor 47, and the conductive slip ring 24 is used for conveying electric energy to the transformer 221 and the measuring instrument 22
Referring to fig. 1, the second motor 9 is started, the second motor 9 drives the first screw rod 8 to rotate, the first screw rod 8 drives the sliding block 7 to slide in the guide rail 6, so that the first installation cylinder 14 is controlled to slide back and forth on the installation seat 1, the third motor 12 is started, the third motor 12 drives the threaded cylinder 13 to rotate, the threaded cylinder 13 is matched with the second screw rod, the first installation cylinder 14 is driven to ascend, and therefore the position of the first installation cylinder 14 is adjusted, and measurement of voltage and current transformers of different types is facilitated.
Referring to fig. 1, the fourth motor 47 is started, and the fourth motor 47 drives the first mounting cylinder 14 to rotate, so that the power receiving contact 18 and the test needle 19 are driven to rotate around the first mounting cylinder 14, and the power receiving contact 18 and the test needle 19 detect the voltage-current transformer.
Referring to fig. 1, 4 and 5, the conductive slip ring 24 is connected with a power supply, transformed by the transformer 221 and then transmitted to the power receiving contact 18, when the power receiving contact 18 is contacted with a terminal of a voltage current transformer, current is poured into the voltage current transformer, then a test is performed through the test needle 19, the tested data measuring instrument 22 is transmitted to an external display computer through a wireless signal, data is recorded in the display computer in a form, abnormal data is automatically marked red through the comparison module and the control module when abnormal data is detected, the observation of workers is facilitated, and the voltage current transformer with a corresponding serial number is taken out for manual retesting.
Referring to fig. 5, in the process of testing, the transmission belt 4 and the first mounting cylinder 14 continuously rotate, in the process, the mounting rod 17 drives the first piston plate 16 to slide towards the interior of the piston cylinder 15, the first spring 20 is driven to shrink, after the voltage-current transformer terminal moves to the position right below the first mounting cylinder 14, the transmission belt 4 and the first mounting cylinder 14 continuously rotate, the first spring 20 rebounds to enable the mounting rod 17 to slide towards the outside of the piston cylinder 15, and after the terminal slides to the limit position, the terminal of the voltage-current transformer continuously moving is automatically separated from the power contact 18 and the test needle 19.
In summary, in the invention, the electrical contact 18 and the test pin 19 are automatically contacted with and separated from the terminals of the voltage-current transformer without manually plugging and unplugging the power supply, so that the electric shock of a worker is avoided, and the voltage-current transformers are tested in the rotating process by a plurality of groups of electrical contact 18 and test pin 19, so that a large number of voltage-current transformers are tested in a staggered manner, thereby improving the testing efficiency and simultaneously reducing the labor cost.
Referring to fig. 1 to 3, 7 and 8, left and right positioning parts provided on the mounting base 1 for left and right positioning of the voltage and current transformer; the front and rear positioning parts are arranged on the mounting seat 1 and are used for positioning the voltage and current transformer front and rear; the left and right positioning parts comprise a second mounting frame 29 fixedly connected to the side wall of the mounting seat 1, a double-head reciprocating screw rod 30 is rotatably connected to the second mounting frame 29, two ends of the double-head reciprocating screw rod 30 are respectively and threadedly connected with a second mounting cylinder 32, a top plate 34 is slidably connected in the second mounting cylinder 32, and the output end of the top plate 34 is fixedly connected with a connecting rod 33; two double-head reciprocating screw rods 30 are arranged at the bottoms of two ends of the mounting seat 1 respectively, and the two double-head reciprocating screw rods 30 synchronously rotate through a first belt pulley group 31; the two connecting rods 33 on the same side are fixedly connected with a first push plate 36, a second spring 35 is arranged in a second mounting cylinder 32, two ends of the second spring 35 are respectively propped against a top plate 34 and the second mounting cylinder 32, the outer wall of the mounting seat 1 is fixedly connected with a gearbox 45, the input shaft of the gearbox 45 is fixedly connected with the transmission roller 2, and the output shaft of the gearbox 45 and one of the double-head reciprocating screw rods 30 synchronously rotate through a second belt pulley group 46; the front-rear positioning portion includes: the plurality of baffles 37, the plurality of baffles 37 are uniformly fixed on the outer surface of the conveyor belt 4 and pass through the inner hole of the annular first push plate 36; the portal frame 38 of fixed connection at mount pad 1 top, fixedly connected with arc mounting tube 39 on the portal frame 38, sliding connection has second piston board 391 on the arc mounting tube 39, fixedly connected with arc pole 40 on the second piston board 391, fixedly connected with second push pedal 41 on the arc pole 40, the arc axis of arc pole 40 is coaxial with the arc axis of arc mounting tube 39, be provided with third spring 42 in the arc mounting tube 39, the both ends of third spring 42 offset with second piston board 391 and arc mounting tube 39 respectively.
Referring to fig. 1-3 and 7 and 8, while the first motor 3 drives the transmission roller 2 to rotate, the speed change box 45 changes speed, the speed change box 45 drives one of the double-headed reciprocating screw rods 30 to rotate through the second belt pulley group 46, the two double-headed reciprocating screw rods 30 synchronously rotate through the first belt pulley group 31, the two first double-headed reciprocating screw rods 30 drive the two second mounting cylinders 32 to simultaneously move towards the middle of the roller shaft 5 and then move towards the two ends of the roller shaft 5, so that the second mounting cylinders 32 drive the first push plate 36 to reciprocate through the connecting rod 33, the first push plate 36 pushes the voltage-current transformer to the middle of the roller shaft 5, the terminal of the voltage-current transformer is aligned with the test needle 19 and the contact electrical contact 18, the end head of the voltage-current transformer is contacted with the second push plate 41 in the transmission process of the voltage-current transformer of the transmission belt 4, the second push plate 41 pushes the voltage-current transformer to be abutted with the baffle 37 under the action of the third spring 42 and the roller shaft 5, the position of the terminal is adjusted, and the voltage-current transformer can be automatically abutted with the test needle 19 and the contact electrical contact 18 through the first mounting cylinders 14, thus the manual positioning of the voltage-current transformer is not needed, and the voltage-transformer is further positioned, and the voltage transformer is tested.
Referring to fig. 1, 5, 6 and 7, a first diversion box 27 is fixedly connected to the inner side of the mounting seat 1, the first diversion box 27 is arranged between the upper layer roller shaft 5 and the lower layer roller shaft 5, an air injection notch 28 is formed in the top of the first diversion box 27, the air injection hole faces the middle of the two groups of roller shafts 5, a second air pipe 26 extending to the outer side of the mounting seat 1 is fixedly connected to the first diversion box 27, a connector 25 is arranged on the second air pipe 26, a first air pipe 231 is fixedly connected to the connector 25, a rotary joint 23 is arranged on a hollow shaft of the first mounting cylinder 14, an outer ring of the rotary joint 23 is fixedly connected with the first air pipe 231, an air inlet hole is formed in one end, far away from the conductive slip ring 24, of the first mounting cylinder 14, a one-way valve for air inlet into the first mounting cylinder 14 is arranged on the air inlet hole, and a one-way valve for air inlet into the connector 25 is arranged on the first air pipe 231; the first push plate 36 is provided with a second shunt box 48, the side wall of the second shunt box 48 is provided with a shunt hole 44 facing the voltage-current transformer, the input end of the second shunt box 48 is connected with the arc-shaped mounting cylinder 39 through a third air pipe 43, the bottom of the arc-shaped mounting cylinder 39 is provided with an air inlet hole, the air inlet hole is provided with a one-way valve for air inlet into the arc-shaped mounting cylinder 39, and the third air pipe 43 is provided with a one-way valve for air inlet into the second shunt box 48.
Referring to fig. 7, a connecting plate is fixedly connected to the gantry 38, the second push plate 41 is hinged to the connecting plate, and the hinge shaft of the second push plate 41 and the connecting plate is coaxial with the arc center axis of the arc-shaped mounting cylinder 39.
In the process of positioning the voltage and current transformer back and forth, when the voltage and current transformer is propped against the baffle plate 37, the baffle plate 37 drives the voltage and current transformer to continuously move, the second push plate 41 is stressed and reversely rotates, the second piston plate 391 is driven to slide towards one end of the arc-shaped mounting cylinder 39 close to the portal frame 38, the third spring 42 is contracted, gas in the arc-shaped mounting cylinder 39 is extruded into the second flow dividing box 48, the gas is ejected from the flow dividing hole 44, a layer of gas mould is formed between the voltage and current transformer and the first push plate 36, friction force between the first push plate 36 and the voltage and current transformer is reduced, friction interference is reduced, alignment precision is improved, and when the voltage and current transformer passes through, the third spring 42 drives the second piston plate 391 to reset, and external air is sucked into the arc-shaped mounting cylinder 39.
Referring to fig. 1, 5 and 6, the transmission belt 4 and the first mounting cylinder 14 continuously rotate, in the process, the mounting rod 17 drives the first piston plate 16 to slide towards the interior of the piston cylinder 15, drives the first spring 20 to shrink, after the voltage-current transformer terminal moves to the position right below the first mounting cylinder 14, the transmission belt 4 and the first mounting cylinder 14 continuously rotate, the first spring 20 rebounds to enable the mounting rod 17 to slide towards the outside of the piston cylinder 15, after the transmission belt slides to the limit position, the terminal of the continuously moving voltage-current transformer automatically breaks away from the power receiving contact 18 and the test needle 19, in the process, the first piston plate 16 slides back and forth in the piston cylinder 15, external air is sucked into the first mounting cylinder 14, blows to the measuring instrument 22 and the transformer 221, dissipates heat of the two, prevents the two from overheating, the gas carrying heat is discharged into the first air pipe 231 through the rotating joint 23, finally enters the first shunt box 27 and is sprayed between the two groups of roller shafts 5 through the air spraying notch 28, and the voltage-current transformer form an air film, friction interference is reduced, and alignment is improved.
A testing method of a voltage-current transformer comprises the following steps:
step one, placing a voltage and current transformer on a roll shaft 5 at the end of a transmission radical, and enabling positive and negative terminals of the voltage and current transformer to face a first mounting tube;
step two, driving the transmission belt 4 to rotate to transmit the voltage and current transformer;
step three, the first motor 3 drives the double-head reciprocating screw rod 30 to rotate while conveying, the double-head reciprocating screw rod 30 drives two groups of symmetrical first push plates 36 to move towards the middle of the roll shaft 5 at the same time, and the voltage current transformer is aligned left and right;
step four, while conveying, the second push plate 41 pushes the voltage-current transformer to slide on the roller shaft 5, so that the voltage-current transformer is propped against the baffle 37;
step five, in the process of transmitting the voltage-current transformer by the transmission belt 4, the test needle 19 and the electric contact 18 rotate by taking the first mounting cylinder 14 as an axis and are contacted with a terminal of the voltage-current transformer in the rotating process, the electric contact 18 supplies power for the voltage-current transformer, and the test needle 19 tests the voltage-current transformer;
step six, in the testing process, the transmission belt 4 and the first mounting cylinder 14 continuously rotate, in the process, the mounting rod 17 drives the first piston plate 16 to slide towards the interior of the piston cylinder 15, the first spring 20 is driven to shrink, after the voltage-current transformer terminal moves to the position right below the first mounting cylinder 14, the transmission belt 4 and the first mounting cylinder 14 continuously rotate, the first spring 20 rebounds to enable the mounting rod 17 to slide towards the outside of the piston cylinder 15, and after the terminal slides to the limit position, the terminal of the voltage-current transformer continuously moving is automatically separated from the electric contact 18 and the test needle 19.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a voltage current transformer testing arrangement, includes mount pad (1), its characterized in that still includes:
the transmission part is arranged on the mounting seat (1) and is used for transmitting the voltage and current transformer;
the left and right positioning parts are arranged on the mounting seat (1) and used for positioning left and right positions of the voltage and current transformer;
the front and rear positioning parts are arranged on the mounting seat (1) and are used for positioning the voltage and current transformer front and rear;
the device comprises an adjusting part arranged on a mounting seat (1), a first mounting cylinder (14) is rotatably arranged on the adjusting part, a telescopic part is arranged on the first mounting cylinder (14), and the output end of the telescopic part is fixedly connected with a test needle (19) and an electric contact (18);
the telescopic parts are provided with a plurality of groups and are uniformly distributed on the wall of the first mounting cylinder (14) in circumference;
and in the process of transmitting the voltage-current transformer by the transmission part, an electric contact (18) and a test needle (19) on the telescopic part are contacted with the positive electrode and the negative electrode of the voltage-current transformer to test the voltage-current transformer.
2. The voltage-current transformer testing device according to claim 1, wherein the transmission part comprises two transmission rollers (2) which are respectively connected to two ends of the mounting seat (1) in a rotating manner, two transmission belts (4) which are symmetrically arranged at two ends of the transmission rollers (2) are connected to the two transmission rollers (2) in a rotating manner, a plurality of roller shafts (5) are connected to the two transmission belts (4) in a rotating manner, the roller shafts (5) are uniformly distributed on the side walls of the transmission belts (4), a first motor (3) is fixedly connected to the side walls of the mounting seat (1), and an output shaft of the first motor (3) is fixedly connected with the transmission rollers (2).
3. The voltage-current transformer testing apparatus according to claim 1, wherein the adjusting section comprises:
two guide rails (6) fixedly connected to two sides of the mounting seat (1), and sliding blocks (7) are connected to the two guide rails (6) in a sliding manner;
the device comprises a first mounting plate (10), wherein a second mounting plate (11) is fixedly connected to the side wall of the first mounting plate (10), a third motor (12) is fixedly connected to the bottom of the second mounting plate (11), a threaded cylinder (13) is fixedly connected to the output end of the third motor (12), the threaded cylinder (13) is rotationally connected with the first mounting plate (10), a second screw rod is connected with the internal threads of the threaded cylinder (13), and the second screw rod is fixedly connected with a sliding block (7);
the second motor (9) is fixedly connected to the end head of the guide rail (6), the output end of the second motor (9) is fixedly connected with a first screw rod (8), and the first screw rod (8) is in threaded connection with the sliding block (7);
and a fourth motor (47) fixedly connected to the first mounting plate (10), wherein an output shaft of the fourth motor (47) is fixedly connected with the first mounting cylinder (14).
4. The voltage-current transformer testing device according to claim 1, wherein the telescopic part comprises six piston cylinders (15) fixedly connected to the side wall of the first mounting cylinder (14), the six piston cylinders (15) are communicated with each other towards one end in the first mounting cylinder (14), the six piston cylinders (15) are slidably connected with a first piston plate (16), a mounting rod (17) is fixedly connected to the first piston plate (16), the electrical contact (18) and the test needle (19) are fixedly connected to one end, far away from the first piston plate (16), of the mounting rod (17), a first spring (20) is arranged in the piston cylinder (15), and two ends of the first spring (20) are respectively propped against the first piston plate (16) and the inner wall of the piston cylinder (15).
5. The voltage-current transformer testing device according to claim 4, wherein the first mounting cylinder (14) is fixedly connected with a first mounting frame (21), a measuring instrument (22) is fixedly connected to the first mounting frame (21), a transformer (221) is fixedly connected to the measuring instrument (22), a wire connected with the electrical contact (18) is fixedly connected to the transformer (221), a signal wire connected with the test needle (19) is fixedly connected to the measuring instrument (22), a conductive slip ring (24) is arranged on a hollow shaft of one end, far away from the fourth motor (47), of the first mounting cylinder (14), and the conductive slip ring (24) is used for conveying electric energy to the transformer (221) and the measuring instrument (22).
6. The voltage and current transformer testing device according to claim 2, wherein the left and right positioning parts comprise a second mounting frame (29) fixedly connected to the side wall of the mounting seat (1), a double-head reciprocating screw rod (30) is rotatably connected to the second mounting frame (29), two ends of the double-head reciprocating screw rod (30) are respectively and threadedly connected to a second mounting cylinder (32), a top plate (34) is slidably connected to the second mounting cylinders (32), and a connecting rod (33) is fixedly connected to the output end of the top plate (34);
two double-head reciprocating screw rods (30) are arranged at the bottoms of two ends of the mounting seat (1) respectively, and the two double-head reciprocating screw rods (30) synchronously rotate through a first belt pulley group (31);
the two connecting rods (33) on the same side are fixedly connected with a first push plate (36), a second spring (35) is arranged in a second mounting cylinder (32), two ends of the second spring (35) are respectively abutted against a top plate (34) and a second mounting cylinder (32), a gearbox (45) is fixedly connected to the outer wall of the mounting seat (1), an input shaft of the gearbox (45) is fixedly connected with the transmission roller (2), and an output shaft of the gearbox (45) and one of the double-head reciprocating screw rods (30) synchronously rotate through a second belt pulley group (46).
7. The voltage-current transformer testing apparatus of claim 6, wherein the front-rear positioning portion comprises:
the baffle plates (37) are uniformly fixed on the outer surface of the conveying belt (4) and penetrate through the inner holes of the annular first push plate (36);
the utility model provides a fixed connection is in portal frame (38) at mount pad (1) top, fixedly connected with arc installation section of thick bamboo (39) on portal frame (38), sliding connection has second piston board (391) on arc installation section of thick bamboo (39), fixedly connected with arc pole (40) on second piston board (391), fixedly connected with second push pedal (41) on arc pole (40), the arc axis of arc pole (40) is coaxial with the arc axis of arc installation section of thick bamboo (39), be provided with third spring (42) in arc installation section of thick bamboo (39), the both ends of third spring (42) offset with second piston board (391) and arc installation section of thick bamboo (39) respectively.
8. The voltage-current transformer testing device according to claim 5, wherein the inner side of the mounting seat (1) is fixedly connected with a first shunt box (27), the first shunt box (27) is arranged in the middle of an upper layer roller shaft (5) and a lower layer roller shaft (5), an air injection notch (28) is formed in the top of the first shunt box (27), the air injection hole faces the middle of two groups roller shafts (5), a second air pipe (26) extending to the outer side of the mounting seat (1) is fixedly connected to the first shunt box (27), a connector (25) is arranged on the second air pipe (26), a first air pipe (231) is fixedly connected to the connector (25), a rotary joint (23) is arranged on a hollow shaft of the first mounting cylinder (14), an outer ring of the rotary joint (23) is fixedly connected with the first air pipe (231), a one-way valve for feeding air into the first mounting cylinder (14) is formed in one end of the first mounting cylinder (14) away from the conductive slip ring (24), and a one-way valve for feeding air into the first air inlet hole is arranged on the first connector (25).
9. The voltage-current transformer testing device according to claim 7, wherein a second shunt box (48) is arranged on the first push plate (36), a shunt hole (44) facing the voltage-current transformer is formed in the side wall of the second shunt box (48), the input end of the second shunt box (48) is connected with the arc-shaped mounting cylinder (39) through a third air pipe (43), an air inlet hole is formed in the bottom of the arc-shaped mounting cylinder (39), a one-way valve for air inlet into the arc-shaped mounting cylinder (39) is arranged on the air inlet hole, and a one-way valve for air inlet into the second shunt box (48) is arranged on the third air pipe (43).
10. A method for testing a voltage-current transformer, using the voltage-current transformer testing apparatus according to any one of claims 1 to 9, comprising the steps of:
step one, placing a voltage and current transformer on a roll shaft (5) at the end of a transmission radical, and enabling positive and negative terminals of the voltage and current transformer to face a first mounting tube;
step two, driving the transmission belt (4) to rotate so as to transmit the voltage current transformer;
step three, the first motor (3) drives the double-head reciprocating screw rod (30) to rotate while conveying, the double-head reciprocating screw rod (30) drives two groups of symmetrical first push plates (36) to move towards the middle of the roll shaft (5) at the same time, and the voltage and current transformers are aligned left and right;
step four, pushing the voltage-current transformer to slide on the roller shaft (5) by the second pushing plate (41) while conveying, so that the voltage-current transformer is propped against the baffle plate (37);
step five, in the process of transmitting the voltage and current transformer by the transmission belt (4), the test needle (19) and the power receiving contact (18) rotate by taking the first mounting cylinder (14) as an axis and are contacted with a terminal of the voltage and current transformer in the rotating process, the power receiving contact (18) supplies power for the voltage and current transformer, and the test needle (19) tests the voltage and current transformer;
step six, in the testing process, the transmission belt (4) and the first mounting cylinder (14) continuously rotate, in the process, the mounting rod (17) drives the first piston plate (16) to slide towards the interior of the piston cylinder (15), the first spring (20) is driven to shrink, after the voltage-current transformer terminal moves to the position right below the first mounting cylinder (14), the transmission belt (4) and the first mounting cylinder (14) continuously rotate, the first spring (20) rebounds to enable the mounting rod (17) to slide towards the exterior of the piston cylinder (15), and after the mounting rod slides to a limit position, the terminal of the voltage-current transformer continuously moving is automatically separated from the power connection contact (18) and the test needle (19).
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| CN202311327877.7A CN117110970A (en) | 2023-10-13 | 2023-10-13 | Voltage and current transformer testing device and method |
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| CN202311327877.7A CN117110970A (en) | 2023-10-13 | 2023-10-13 | Voltage and current transformer testing device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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