CN116794355B - Electrical part quality detection workbench - Google Patents
Electrical part quality detection workbench Download PDFInfo
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- CN116794355B CN116794355B CN202310599407.XA CN202310599407A CN116794355B CN 116794355 B CN116794355 B CN 116794355B CN 202310599407 A CN202310599407 A CN 202310599407A CN 116794355 B CN116794355 B CN 116794355B
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- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 130
- 230000001012 protector Effects 0.000 claims abstract description 96
- 238000004804 winding Methods 0.000 claims abstract description 33
- 230000001788 irregular Effects 0.000 claims abstract description 11
- 238000004088 simulation Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 15
- 238000007689 inspection Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 11
- 239000004020 conductor Substances 0.000 abstract description 7
- 230000006698 induction Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- 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
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses an electric component quality detection workbench, which relates to the field of electric component detection and comprises a workbench for installing a leakage protector, a three-phase five-wire system test wire, and a power supply unit connected with the three-phase five-wire system test wire, wherein the power supply unit is used for generating leakage current for power supply simulation of the three-phase five-wire system test wire, and the three-phase five-wire system test wire comprises an R wire, a T wire and an S wire and further comprises: the winding mechanism is used for winding R line, T line and S line in the three-phase five-line system test line on the zero sequence transformer of the leakage protector; by carrying out regular distribution state test and irregular distribution state test of three-phase five-wire system test wires on the zero sequence transformer in the leakage protector, the actual distribution situation of three-wire conductors on the leakage protector after installation can be truly simulated, and the comprehensiveness and the authenticity of quality detection of electric parts are improved, so that the actual leakage action current of the leakage protector can be more accurately detected.
Description
Technical Field
The invention relates to an electric component detection technology, in particular to an electric component quality detection workbench.
Background
The leakage protector of the three-phase five-wire system power supply system comprises induction units of two parts of a zero-sequence current transformer and a residual current transformer, and the wiring modes of the two units are different, so that the three-phase current transformer part of the three-wire conductor winding leakage protector can generate three independent magnetic fields in a branching winding transformer mode during installation, the magnetic fields generated by the mutually adjacent conductor winding parts can influence each other, under the condition that the conductor winding parts are unevenly distributed, the induction current generated by the magnetic field generated by the three-wire conductor energizing to the zero-sequence current transformer is not 0 under the condition that the sum of current vectors of all phases of a distribution line is 0, and therefore, under the condition that electric leakage occurs, the current generated by the zero-sequence current transformer induction can also deviate from the current generated by the induction when the conductors are evenly distributed; in the prior art, the arrangement is generally finished by directly passing a detection lead through the center of a zero sequence current transformer, the leakage action current measured during the test is deviated from the leakage action current of the leakage protector in actual use, the leakage action current of the leakage protector which is qualified during the test is in accordance with a standard value, the detected deviation can lead the leakage action current of the leakage protector in actual use to exceed the standard value, and the standard leakage action current of the leakage protector is generally 30mA, so that the detection deviation is larger for the standard leakage action current of the leakage protector, and the leakage protector with insufficient personal safety protection is misjudged to be qualified.
Disclosure of Invention
The invention aims to provide an electric component quality detection workbench which aims to solve the defects in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides an electrical component quality detects operation panel, is including the workstation that is used for installing earth leakage protector, three-phase five-wire system test line and the power supply unit who connects three-phase five-wire system test line, power supply unit is used for producing leakage current for three-phase five-wire system test line power supply simulation, three-phase five-wire system test line includes R line, T line and S line, still includes:
the winding mechanism is used for winding R line, T line and S line in the three-phase five-line system test line on the zero sequence transformer of the leakage protector;
the adjusting mechanism is used for moving R line, T line and S line wound on the zero sequence transformer to rotate around the axis of the zero sequence transformer on the leakage protector;
firstly, carrying out standard state distribution test, and adjusting R line, S line and T line which are wound on a zero sequence transformer of the leakage protector to positions which are uniformly distributed around the axis of the zero sequence transformer;
the three-phase five-wire system test wire is connected with the standard leakage current of the leakage protector to test whether the leakage protector generates tripping action or not;
after the standard state distribution test is completed, carrying out a regular distribution test, rotating the S line and the T line around the axis of the zero sequence transformer in the direction close to the R line, wherein the rotation angles of the S line and the T line are equal, and rotating the S line and the T line for a plurality of times;
after the S line and the T line are rotated each time, carrying out a regular distribution test, and connecting a three-phase five-line system test line into a standard leakage current test leakage protector for the leakage protector for judging whether tripping action is generated or not;
after the regular distribution test is finished, carrying out irregular distribution test, adjusting R lines, S lines and T lines which are wound on a zero sequence transformer of the leakage protector to positions which are uniformly distributed around an axis of the zero sequence transformer, then moving the R lines to rotate between the S lines and the T lines, wherein each movement enables an included angle between the R lines and the S lines to reach a set first included angle, the number of the first included angles is equal to the number of times of moving the R lines, and the included angle between the R lines and the S lines is defined as: and an included angle between the winding point of the zero-sequence transformer and the axis of the zero-sequence transformer is formed by the R line and the S line.
Further, a test unit for providing a complete test loop for three-phase five-wire system test wire leakage simulation test is arranged on the workbench, the test unit comprises an upper test plate, a lower test plate, a placing frame and a plug-in port arranged on the lower test plate, and a zero sequence transformer of the three-phase five-wire system leakage protector is placed on the placing frame.
Further, the rack is including setting up the first electric telescopic handle on lower test board, the flexible end fixedly connected with bottom plate of first electric telescopic handle, the top of bottom plate is provided with the U type and presss from both sides, the bottom of bottom plate is provided with a plurality of guide bars, the bottom of guide bar and the medial surface sliding connection of lower test board, through the flexible of the flexible end of first electric telescopic handle, can drive the bottom plate and carry out the removal of vertical direction for the U type presss from both sides can carry out the removal of vertical direction, and under the direction effect of guide bar, the stability that makes the bottom plate can be when vertical direction removes is better, makes the U type press from both sides can bear or separate zero-sequence transformer as required.
Further, the winding mechanism comprises three vertical plates arranged on a workbench, the three vertical plates are distributed around the zero sequence transformer at equal angles, an installation block is arranged outside the vertical plates, an annular groove is formed in the installation block, an arc-shaped plate is slidably connected to the inner side face of the annular groove, a connecting column is arranged on the outer side of the end portion of the arc-shaped plate, the connecting column is used for connecting and fixing wiring ends of a three-phase five-wire system test wire, an arc-shaped groove corresponding to the connecting column is formed in the surface of the installation block, and a driving piece is arranged on the installation block.
Further, the driving piece is including seting up the first guide way at riser surface, the medial surface of first guide way rotates and is connected with first ball screw, installation piece and first ball screw threaded connection, just the medial surface sliding connection of installation piece and first guide way, the inside rotation of installation piece is connected with two first gears, two first gear symmetry sets up the upper and lower both sides at the ring channel, and the distance value between two first gears is corresponding with the distance value between two tip of arc opening part for the lower extreme of arc rotates to when will separate with top first gear, and the upper end of arc rotates to the meshing with below first gear, thereby makes the arc can carry out complete circumference rotation, two the outside of first gear all is provided with the band pulley, two be provided with the drive belt between the band pulley, the surface of arc is provided with the tooth, and the tooth distributes along the arc surface of arc for can drive the circumference when first gear rotates, first gear rotates through tooth and two arc, the axis is used for the arc rotates around first gear and drives the axis and rotates around the ring channel.
Further, guiding mechanism is including setting up the extension board on the workstation, the outside of extension board is provided with the annular board, the medial surface of annular board rotates and is connected with annular seat, the annular groove that runs through annular board bottom is seted up to annular seat' S bottom, the inside of annular groove is provided with two U type push pedal, the outside of U type push pedal is provided with the power piece, the power piece is used for driving annular board and two U type push pedal and moves, the inside of annular board is provided with the setting element, when U type push pedal carries out position adjustment to R line, T line and S line, the setting element can fix zero-sequence transformer.
Further, the power member includes a first assembly, a second assembly, and a third assembly;
the first component comprises a second guide groove formed in the surface of the support plate, the inner side surface of the second guide groove is rotationally connected with a second ball screw, the annular plate is in threaded connection with the second ball screw, the annular plate is in sliding connection with the inner side surface of the second guide groove, and the first component is used for driving the annular plate to move in the vertical direction;
the second assembly comprises a movable cavity formed in the annular plate, the inner side surface of the movable cavity is rotationally connected with a second gear, a tooth slot is formed in the side surface of the annular seat, the second gear is meshed with the tooth slot, a first motor is arranged at the top of the annular plate, the second gear is fixedly connected with an output shaft of the first motor, and the second assembly is used for driving the annular seat to rotate around the central axis of the annular plate;
the third subassembly is including seting up at the inside annular chamber of annular seat, two the U type push pedal all with the medial surface sliding connection in annular chamber, two the outside of U type push pedal is fixedly connected with first ring rack and the second ring rack of upper and lower distribution respectively, the inside of annular seat is provided with the second motor, the outside of second motor output shaft is provided with the third gear, first ring rack and second ring rack mesh respectively at the upper and lower both ends of third gear, when the third gear rotated, first ring rack and second ring rack synchronous reverse rotation.
Further, the locating piece is including seting up at the inside straight flute in annular seat, the inside fixedly connected with second electric telescopic handle in straight flute, the flexible end fixedly connected with locating plate of second electric telescopic handle, locating plate and the medial surface sliding connection in straight flute.
Further, guiding mechanism still includes the setting at the outside control piece of first ring rack, the control piece is including seting up the circular arc groove at annular chamber top, the medial surface sliding connection in circular arc groove has the slider, fixedly connected with extension spring between slider and the circular arc inslot wall, the bottom fixedly connected with third electric telescopic handle of slider, third electric telescopic handle flexible end and first ring rack fixed connection.
An electrical component quality inspection method using an electrical component quality inspection station as described above performs the steps of:
s1, inserting a leakage protector to be detected into an embedded groove on a workbench, and taking out a zero sequence transformer on the leakage protector and placing the zero sequence transformer on a placing rack;
s2, winding the R line, the T line and the S line on a zero sequence transformer of the leakage protector at the same time through a winding mechanism, and driving the installation block to move downwards through the driving piece after the winding is completed, so that the connecting column drives the bottom inserting ends of the R line, the T line and the S line to be inserted into the inserting ports on the lower test board, and simultaneously, when the inserting ends of the R line, the T line and the S line move downwards, the R line, the T line and the S line on the surface of the zero sequence transformer can be gradually tightened;
s3, after the arrangement of the R line, the T line and the S line is completed, controlling the placing frame to move downwards to be separated from the zero sequence transformer of the leakage protector;
s4, providing a standard leakage current of the leakage protector through the power supply unit, detecting the leakage protection of the leakage protector under standard state distribution through the test unit, and testing whether the leakage protection generates tripping action under the standard leakage current access state of the leakage protector;
s5, carrying out regular distribution test after the standard state distribution test is finished, synchronously pushing the S line and the T line to rotate at the same angle around the axis of the zero sequence transformer in the direction close to the R line through an adjusting mechanism, wherein the number of the rotating angles is equal to the position adjustment times of the S line and the T line, repeating the detection process in the step S4 after each adjustment is finished, and testing whether the leakage protection generates tripping action in the standard leakage current access state of the leakage protector;
s6, carrying out irregular distribution test after the regular distribution test is finished, adjusting R line, S line and T line wound on a zero sequence transformer of the leakage protector to positions uniformly distributed around the axis of the zero sequence transformer through an adjusting mechanism, then moving the R line to rotate between the S line and the T line through the adjusting mechanism, enabling the included angle between the R line and the S line to reach a set first included angle each time, enabling the number of the first included angles to be equal to the number of times of moving the R line, repeating the detection process in the step S4 after each time of adjustment, and testing whether the leakage protector generates tripping action in a standard leakage current access state of the leakage protector;
s7, after the irregular distribution test is completed, controlling the placing rack to move upwards to bear the zero sequence transformer of the leakage protector, driving the mounting block to move upwards through the driving piece, enabling the plugging ends of the R line, the S line and the T line to be separated from the plugging ports, and driving the plugging ends of the R line, the S line and the T line to rotate reversely through the winding mechanism, so that the R line, the S line and the T line are separated from the zero sequence transformer of the leakage protector;
s8, placing the zero sequence transformer which is not wound by the R line, the S line and the T line after the test is completed into a leakage protector, taking down the leakage protector, replacing the next leakage protector to be tested, and repeating the steps.
Compared with the prior art, the electric part quality detection workbench provided by the invention can truly simulate the actual distribution condition of three-wire conductors on the electric leakage protector after installation by carrying out the regular distribution state test and the irregular distribution state test of the three-phase five-wire system test wire on the zero-sequence transformer in the electric leakage protector in the quality test process of the electric leakage protector in the three-phase five-wire system power supply system, thereby improving the comprehensiveness and the authenticity of the quality detection of the electric part, further accurately detecting the actual electric leakage action current of the electric leakage protector and effectively reducing the misjudgment probability of the electric leakage protector.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of the structure of FIG. 1 according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an adjusting mechanism according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of the structure shown in FIG. 3A according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a riser and mounting block according to an embodiment of the present invention;
FIG. 6 is a schematic view of a partial cross-sectional structure of an annular plate according to an embodiment of the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 6B according to an embodiment of the present invention;
FIG. 8 is a schematic view of the internal structure of an annular plate according to an embodiment of the present invention;
fig. 9 is an enlarged schematic view of the structure at C in fig. 8 according to an embodiment of the present invention.
Reference numerals illustrate:
1. a work table; 2. a three-phase five-wire system test wire; 21. r line; 22. a T line; 23. s line; 3. a test unit; 31. a test board is arranged; 32. a lower test plate; 33. a placing rack; 331. a first electric telescopic rod; 332. a bottom plate; 333. a U-shaped clamp; 334. a guide rod; 34. an interface; 4. a zero sequence transformer; 5. a winding mechanism; 51. a vertical plate; 52. a mounting block; 53. an annular groove; 54. an arc-shaped plate; 55. a connecting column; 56. a driving member; 561. a first ball screw; 562. a first gear; 563. a belt wheel; 564. a transmission belt; 565. teeth; 57. an arc-shaped groove; 6. an adjusting mechanism; 61. a support plate; 62. an annular plate; 63. a ring groove; 64. a U-shaped push plate; 65. a power member; 651. a first component; 6511. a second ball screw; 652. a second component; 6521. a second gear; 6522. tooth slots; 6523. a first motor; 653. a third component; 6531. a first annular rack; 6532. a second ring rack; 6533. a second motor; 6534. a third gear; 66. a positioning piece; 661. a second electric telescopic rod; 662. a positioning plate; 67. an annular seat; 68. a control member; 681. an arc groove; 682. a slide block; 683. a tension spring; 684. and a third electric telescopic rod.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
Embodiment one:
referring to fig. 1-9, an electric component quality detection workbench includes a workbench 1 for installing a leakage protector, a three-phase five-wire test wire 2, and a power supply unit connected to the three-phase five-wire test wire 2, wherein the power supply unit is configured to simulate power supply of the three-phase five-wire test wire 2 to generate leakage current, and the three-phase five-wire test wire 2 includes an R-wire 21, a T-wire 22, and an S-wire 23, and further includes:
a winding mechanism 5 for winding the R line 21, the T line 22 and the S line 23 in the three-phase five-wire system test line 2 on the zero sequence transformer 4 of the leakage protector;
the adjusting mechanism 6 is used for moving the R line 21, the T line 22 and the S line 23 wound on the zero sequence transformer 4 to rotate around the axis of the zero sequence transformer 4 on the leakage protector;
firstly, carrying out standard state distribution test, and adjusting R line 21, S line 23 and T line 22 wound on a zero sequence transformer 4 of a leakage protector to positions uniformly distributed around the axis of the zero sequence transformer 4;
the three-phase five-wire system test wire 2 is connected with the standard leakage current of the leakage protector to test whether the leakage protector generates tripping action or not;
after the standard state distribution test is completed, carrying out a regular distribution test, rotating the S line 23 and the T line 22 around the axis of the zero sequence transformer 4 in the direction approaching to the R line 21, wherein the rotation angles of the S line 23 and the T line 22 are equal, and rotating the S line 23 and the T line 22 for a plurality of times;
after the S line 23 and the T line 22 are rotated each time, carrying out a regular distribution test, and connecting the three-phase five-wire system test line 2 to a standard leakage current test leakage protector of the leakage protector for each regular distribution test to determine whether tripping action is generated;
after the regular distribution test is completed, carrying out irregular distribution test, adjusting R line 21, S line 23 and T line 22 wound on zero sequence transformer 4 of the leakage protector to positions uniformly distributed around the axis of zero sequence transformer 4, then moving R line 21 to rotate between S line 23 and T line 22, wherein each movement enables the included angle between R line 21 and S line 23 to reach a set first included angle, the number of the first included angles is equal to the number of times of moving R line 21, and the included angle between R line 21 and S line 23 is defined as: the R-line 21 and S-line 23 form an angle between the winding point of the zero sequence transformer 4 and the axis of the zero sequence transformer 4.
In this embodiment, a test unit 3 for providing a complete test loop for the leakage simulation test of the three-phase five-wire system test wire 2 is arranged on the workbench 1, the test unit 3 includes an upper test board 31, a lower test board 32, a placement frame 33, and a plug interface 34 arranged on the lower test board 32, and the placement frame 33 is provided with a zero sequence transformer 4 of the three-phase five-wire system leakage protector.
In this embodiment, rack 33 includes the first electric telescopic handle 331 of setting on lower test board 32, the flexible end fixedly connected with bottom plate 332 of first electric telescopic handle 331, the top of bottom plate 332 is provided with U type clamp 333, the bottom of bottom plate 332 is provided with a plurality of guide bars 334, the bottom of guide bar 334 and the medial surface sliding connection of lower test board 32, flexible through the flexible end of first electric telescopic handle 331 can drive bottom plate 332 and carry out the removal of vertical direction, make U type clamp 333 can carry out the removal of vertical direction, and under the direction effect of guide bar 334, make the stability of bottom plate 332 when vertical direction removes better, make U type clamp 333 carry zero-sequence transformer 4 or separate it as required.
In this embodiment, the winding mechanism 5 includes three vertical plates 51 disposed on the workbench 1, the three vertical plates 51 are equiangularly distributed around the zero sequence transformer 4, a mounting block 52 is disposed outside the vertical plates 51, an annular groove 53 is formed in the mounting block 52, an arc plate 54 is slidably connected to an inner side surface of the annular groove 53, a connecting column 55 is disposed outside an end portion of the arc plate 54, the connecting column 55 is used for connecting and fixing terminals of the three-phase five-wire system test wire 2, an arc groove 57 corresponding to the connecting column 55 is formed in a surface of the mounting block 52, and a driving member 56 is disposed on the mounting block 52.
The driving piece 56 comprises a first guide groove formed on the surface of the vertical plate 51, a first ball screw 561 is rotationally connected to the inner side surface of the first guide groove, a driving source is arranged outside the first ball screw 561, the driving source is a motor, the mounting block 52 is in threaded connection with the first ball screw 561, the mounting block 52 is in sliding connection with the inner side surface of the first guide groove, two first gears 562 are rotationally connected to the inner side of the mounting block 52, the first gears 562 are rotationally connected with the inner side of the mounting block 52 through gear shafts, one driving source is arranged outside one of the first gears 562, the driving source is a motor, the two first gears 562 are symmetrically arranged on the upper side and the lower side of the annular groove 53, the distance value between the two first gears 562 corresponds to the distance value between the two ends of the opening of the arc plate 54, when the lower end of the arc plate 54 rotates to be separated from the first gear 562 above, the upper end of the arc plate 54 rotates to be meshed with the first gear 562 below, so that the arc plate 54 can perform complete circumferential rotation, belt pulleys 563 are arranged outside the two first gears 562, a transmission belt 564 is arranged between the two belt pulleys 563, teeth 565 are arranged on the surface of the arc plate 54, the teeth 565 are distributed along the arc surface of the arc plate 54, the arc plate 54 can be driven to perform circumferential rotation when the first gears 562 rotate, the first gears 562 are meshed with the arc plate 54 through the teeth 565, and the two first gears 562 are used for driving the arc plate 54 to rotate around the central axis of the annular groove 53.
In the winding process, the two first gears 562 synchronously rotate, under the transmission action of the teeth 565, the arc plate 54 rotates, the arc plate 54 drives the connecting column 55 arranged outside the arc plate 54 to rotate in the rotating process, the connecting column 55 drives the bottom inserting ends of the R wire 21, the T wire 22 and the S wire 23 connected with the connecting column 55 to rotate, the R wire 21, the T wire 22 and the S wire 23 can be wound on the ring body of the zero-sequence transformer 4, and after the winding is completed, the first ball screw 561 rotates to drive the mounting block 52 to move downwards, so that the bottom inserting ends of the R wire 21, the T wire 22 and the S wire 23 can move downwards to be inserted into the inserting ports 34.
In this embodiment, guiding mechanism 6 is including setting up the extension board 61 on workstation 1, the outside of extension board 61 is provided with annular plate 62, annular plate 62 medial surface rotates and is connected with annular seat 67, annular seat 67 'S bottom has been seted up and has been run through annular plate 62 bottom annular groove 63, annular groove 63' S inside is provided with two U type push pedal 64, U type push pedal 64 'S outside is provided with power piece 65, power piece 65 is used for driving annular plate 62 and two U type push pedal 64 and moves, annular plate 62' S inside is provided with setting element 66, when U type push pedal 64 carries out position adjustment to R line 21, T line 22 and S line 23, setting element 66 can fix zero-sequence transformer 4.
The power member 65 includes a first assembly 651, a second assembly 652, and a third assembly 653;
the first component 651 comprises a second guide groove formed in the surface of the support plate 61, a second ball screw 6511 is rotatably connected to the inner side surface of the second guide groove, the annular plate 62 is in threaded connection with the second ball screw 6511, the annular plate 62 is in sliding connection with the inner side surface of the second guide groove, and the first component 651 is used for driving the annular plate 62 to move in the vertical direction;
the second assembly 652 comprises a movable cavity formed in the annular plate 62, a second gear 6521 is rotatably connected to the inner side surface of the movable cavity, a tooth groove 6522 is formed in the side surface of the annular seat 67, the second gear 6521 is meshed with the tooth groove 6522, a first motor 6523 is arranged at the top of the annular plate 62, the second gear 6521 is fixedly connected with the output shaft of the first motor 6523, and the second assembly 652 is used for driving the annular seat 67 to rotate around the central axis of the annular plate 62;
the third subassembly 653 is including seting up at the inside annular chamber of annular seat 67, two U type push pedal 64 all with the medial surface sliding connection in annular chamber, the outside of two U type push pedal 64 is fixedly connected with first annular rack 6531 and the second annular rack 6532 of upper and lower distribution respectively, the inside of annular seat 67 is provided with second motor 6533, the outside of second motor 6533 output shaft is provided with third gear 6534, first annular rack 6531 and second annular rack 6532 mesh respectively at the upper and lower both ends of third gear 6534, when third gear 6534 rotated, first annular rack 6531 and the synchronous reverse rotation of second annular rack 6532.
In this embodiment, the positioning member 66 includes a straight groove formed in the annular seat 67, a second electric telescopic rod 661 is fixedly connected to the inside of the straight groove, a positioning plate 662 is fixedly connected to the telescopic end of the second electric telescopic rod 661, and the positioning plate 662 is slidably connected to the inner side surface of the straight groove.
In this embodiment, the adjusting mechanism 6 further includes a control member 68 disposed outside the first annular rack 6531, the control member 68 includes an arc groove 681 formed at the top of the annular cavity, the inner side surface of the arc groove 681 is slidably connected with a slide block 682, a tension spring 683 is fixedly connected between the slide block 682 and the inner wall of the arc groove 681, a third electric telescopic rod 684 is fixedly connected to the bottom of the slide block 682, the telescopic end of the third electric telescopic rod 684 is fixedly connected with the first annular rack 6531, and the longitudinal section of the arc groove 681 is in a convex shape, so that the slide block 682 can only slide along the inner wall of the arc groove 681, and cannot perform relative movement with the arc groove 681 in the vertical direction, so that the telescopic end of the third electric telescopic rod 684 can provide a stable supporting force for the same in the moving process.
When the position of the wound part of the R line 21, the T line 22 or the S line 23 is regulated, the second ball screw 6511 rotates to drive the annular plate 62 to move downwards, so that the U-shaped push plate 64 positioned in the annular plate 62 can move downwards to be inserted outside the ring shape of the zero sequence transformer 4, then the telescopic end of the second electric telescopic rod 661 at a proper position stretches out and drives the positioning plate 662 to contact with the surface of the zero sequence transformer 4 and extrude, so that the zero sequence transformer 4 can be limited in position, in the process, the second gear 6521 can be matched with the tooth grooves 6522 as required, the second gear 6521 rotates to drive the annular seat 67 to rotate, and the annular seat 67 rotates to drive the U-shaped push plate 64 to rotate, so that the initial movement position of the action of the U-shaped push plate 64 can be regulated as required; when the position of the wound part of the R line 21, the T line 22 or the S line 23 is adjusted, the third gear 6534 rotates to drive the first annular rack 6531 to rotate with the second annular rack 6532 at the same time, or before the operation, the retraction of the telescopic end of the third electric telescopic rod 684 drives the first annular rack 6531 to move upwards according to the requirement of the actual adjustment mode, so that the first annular rack 6531 is separated from the third gear 6534, the third gear 6534 can only drive the second annular rack 6532 to rotate, when the first annular rack 6531 and the second annular rack 6532 rotate at the same time, or only the second annular rack 6532 rotates alone, the rotation of the first annular rack 6531 and the second annular rack 6532 can respectively drive the two U-shaped push plates 64 to move, and the rotation process of the U-shaped push plates 64 can push the wound part of the R line 21, the T line 22 or the S line 23 to rotate synchronously therewith, and after the one-time adjustment operation is completed, the annular plate 62 is driven to move upwards by the rotation of the second ball 6511, so that the annular plate 62 is separated from the zero sequence adjuster 4.
An electrical component quality inspection method using an electrical component quality inspection station as described above performs the steps of:
s1, inserting a leakage protector to be detected into an embedded groove on a workbench 1, and taking out a zero sequence transformer 4 on the leakage protector and placing the zero sequence transformer on a placing rack 33;
s2, simultaneously winding the R line 21, the T line 22 and the S line 23 on the zero sequence transformer 4 of the leakage protector at equal angles through a winding mechanism 5, and driving the mounting block 52 to move downwards through the driving piece 56 after the winding is completed, so that the connecting column 55 drives the bottom inserting ends of the R line 21, the T line 22 and the S line 23 to be inserted into the inserting ports 34 on the lower test board 32, and simultaneously, when the inserting ends of the R line 21, the T line 22 and the S line 23 move downwards, the R line 21, the T line 22 and the S line 23 on the surface of the wound zero sequence transformer 4 can be gradually tightened;
s3, after the arrangement of the R line 21, the T line 22 and the S line 23 is completed, controlling the placing frame 33 to move downwards to be separated from the zero sequence transformer 4 of the leakage protector;
s4, providing a standard leakage current of the leakage protector through the power supply unit, detecting the leakage protection of the leakage protector under standard state distribution through the test unit 3, and testing whether the leakage protection generates tripping action under the standard leakage current access state of the leakage protector;
s5, carrying out regular distribution test after the standard state distribution test is finished, synchronously pushing the S line 23 and the T line 22 to rotate at the same angle around the axis of the zero sequence transformer 4 in the direction close to the R line 21 through the adjusting mechanism 6, wherein the number of the rotating angles is equal to the position adjustment times of the S line 23 and the T line 22, repeating the detection process in the step S4 after each adjustment is finished, and testing whether the leakage protection generates tripping action in the standard leakage current access state of the leakage protector;
s6, carrying out irregular distribution test after the regular distribution test is finished, regulating the R line 21, the S line 23 and the T line 22 wound on the zero sequence transformer 4 of the leakage protector to positions uniformly distributed around the axis of the zero sequence transformer 4 through the regulating mechanism 6, then moving the R line 21 to rotate between the S line 23 and the T line 22 through the regulating mechanism 6, enabling the included angle between the R line 21 and the S line 23 to reach a set first included angle each time, enabling the number of the first included angles to be equal to the number of times of moving the R line 21, repeating the detection process in the step S4 after each time of regulation, and testing whether the leakage protector generates tripping action in a standard leakage current access state of the leakage protector;
s7, after the irregular distribution test is completed, the placing frame 33 is controlled to move upwards to bear the zero sequence transformer 4 of the leakage protector, then the driving piece 56 drives the mounting block 52 to move upwards, so that the plugging ends of the R line 21, the S line 23 and the T line 22 can be separated from the plugging ports 34, and then the winding mechanism 5 drives the plugging ends of the R line 21, the S line 23 and the T line 22 to rotate reversely, so that the R line 21, the S line 23 and the T line 22 are separated from the zero sequence transformer 4 of the leakage protector;
s8, placing the zero sequence transformer 4 which is not wound by the R line 21, the S line 23 and the T line 22 after the test is completed into a leakage protector, taking down the leakage protector, replacing the next leakage protector to be tested, and repeating the steps.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (10)
1. The utility model provides an electrical component quality detects operation panel, is including workstation (1) that are used for installing earth leakage protector, three-phase five-wire system test line (2) and the power supply unit who connects three-phase five-wire system test line (2), and power supply unit is used for producing leakage current for three-phase five-wire system test line (2) power supply simulation, three-phase five-wire system test line (2) include R line (21), T line (22) and S line (23), its characterized in that still includes:
the winding mechanism (5) is used for winding an R line (21), a T line (22) and an S line (23) in the three-phase five-wire system test line (2) on the zero sequence transformer (4) of the leakage protector;
the adjusting mechanism (6) is used for moving an R line (21), a T line (22) and an S line (23) wound on the zero sequence transformer (4) to rotate around the axis of the zero sequence transformer (4) on the leakage protector;
firstly, carrying out standard state distribution test, and adjusting R line (21), S line (23) and T line (22) wound on a zero sequence transformer (4) of a leakage protector to positions uniformly distributed around the axis of the zero sequence transformer (4);
the three-phase five-wire system test wire (2) is connected with the standard leakage current of the leakage protector to test whether the leakage protector generates tripping action or not;
after the standard state distribution test is finished, carrying out a regular distribution test, rotating the S line (23) and the T line (22) around the axis of the zero sequence transformer (4) in the direction close to the R line (21), wherein the rotation angles of the S line (23) and the T line (22) are equal, and rotating the S line (23) and the T line (22) for a plurality of times;
after the S line (23) and the T line (22) are rotated each time, carrying out a regular distribution test, and connecting the three-phase five-line system test line (2) to a standard leakage current test leakage current protector of the leakage current protector for each time, wherein whether tripping action is generated or not is carried out;
carrying out irregular distribution test after the regular distribution test is finished, adjusting R line (21), S line (23) and T line (22) which are wound on a zero sequence transformer (4) of the leakage protector to positions which are uniformly distributed around the axis of the zero sequence transformer (4), then moving the R line (21) to rotate between the S line (23) and the T line (22), enabling an included angle between the R line (21) and the S line (23) to reach a set first included angle each time, wherein the number of the first included angles is equal to the number of times of moving the R line (21), and the included angle between the R line (21) and the S line (23) is defined as: and an included angle between the winding point of the zero sequence transformer (4) and the axis of the zero sequence transformer (4) is formed by the R line (21) and the S line (23).
2. The electric component quality detection workbench according to claim 1, wherein a test unit (3) for providing a complete test loop for the three-phase five-wire system test line (2) leakage simulation test is arranged on the workbench (1), the test unit (3) comprises an upper test plate (31), a lower test plate (32), a placement frame (33) and a plug-in port (34) arranged on the lower test plate (32), and a zero sequence transformer (4) of the three-phase five-wire system leakage protector is placed on the placement frame (33).
3. The electric component quality detection workbench according to claim 2, wherein the placement frame (33) comprises a first electric telescopic rod (331) arranged on the lower test board (32), a bottom plate (332) is fixedly connected to a telescopic end of the first electric telescopic rod (331), a U-shaped clamp (333) is arranged at the top of the bottom plate (332), a plurality of guide rods (334) are arranged at the bottom of the bottom plate (332), and the bottom of the guide rods (334) is in sliding connection with the inner side surface of the lower test board (32).
4. An electrical component quality inspection workbench according to claim 3, characterized in that the winding mechanism (5) comprises three vertical plates (51) arranged on the workbench (1), the three vertical plates (51) are equiangularly distributed around the zero sequence transformer (4), a mounting block (52) is arranged outside the vertical plates (51), an annular groove (53) is formed in the mounting block (52), an arc plate (54) is slidingly connected to the inner side surface of the annular groove (53), a connecting column (55) is arranged on the outer side of the end part of the arc plate (54), the connecting column (55) is used for connecting and fixing the wiring end of the three-phase five-wire system testing wire (2), an arc groove (57) corresponding to the connecting column (55) is formed in the surface of the mounting block (52), and a driving piece (56) is arranged on the mounting block (52).
5. The electric part quality detection workbench according to claim 4, wherein the driving part (56) comprises a first guide groove formed in the surface of the vertical plate (51), a first ball screw (561) is rotatably connected to the inner side surface of the first guide groove, the mounting block (52) is in threaded connection with the first ball screw (561), the mounting block (52) is slidably connected to the inner side surface of the first guide groove, two first gears (562) are rotatably connected to the inner side of the mounting block (52), the two first gears (562) are symmetrically arranged on the upper side and the lower side of the annular groove (53), pulleys (563) are arranged on the outer side of the two first gears (562), a transmission belt (564) is arranged between the two pulleys (563), teeth (565) are arranged on the surface of the arc plate (54), the first gears (562) are meshed with the arc plate (54) through the teeth (565), and the two first gears (562) are used for driving the arc plate (54) to rotate around the central axis (53).
6. The electric part quality detection workbench according to claim 5, wherein the adjusting mechanism (6) comprises a support plate (61) arranged on the workbench (1), an annular plate (62) is arranged outside the support plate (61), an annular seat (67) is rotatably connected to the inner side surface of the annular plate (62), an annular groove (63) penetrating through the bottom of the annular plate (62) is formed in the bottom of the annular seat (67), two U-shaped push plates (64) are arranged in the annular groove (63), a power part (65) is arranged outside the U-shaped push plates (64), a positioning part (66) is arranged inside the annular plate (62), and when the U-shaped push plates (64) adjust positions of an R line (21), a T line (22) and an S line (23), the positioning part (66) can fix the zero-sequence transformer (4).
7. The electric component quality inspection station according to claim 6, characterized in that the power component (65) comprises a first component (651), a second component (652) and a third component (653);
the first assembly (651) comprises a second guide groove formed in the surface of the support plate (61), a second ball screw (6511) is rotatably connected to the inner side surface of the second guide groove, the annular plate (62) is in threaded connection with the second ball screw (6511), the annular plate (62) is in sliding connection with the inner side surface of the second guide groove, and the first assembly (651) is used for driving the annular plate (62) to move in the vertical direction;
the second assembly (652) comprises a movable cavity which is formed in the annular plate (62), a second gear (6521) is rotatably connected to the inner side surface of the movable cavity, a tooth groove (6522) is formed in the side surface of the annular seat (67), the second gear (6521) is meshed with the tooth groove (6522), a first motor (6523) is arranged at the top of the annular plate (62), the second gear (6521) is fixedly connected with an output shaft of the first motor (6523), and the second assembly (652) is used for driving the annular seat (67) to rotate around the central axis of the annular plate (62);
the third subassembly (653) is including seting up at the inside annular chamber of annular seat (67), two U type push pedal (64) all with the medial surface sliding connection in annular chamber, two the outside of U type push pedal (64) is first annular rack (6531) and second annular rack (6532) of fixedly connected with upper and lower distribution respectively, the inside of annular seat (67) is provided with second motor (6533), the outside of second motor (6533) output shaft is provided with third gear (6534), first annular rack (6531) and second annular rack (6532) are engaged respectively at the upper and lower both ends of third gear (6534), when third gear (6534) rotate, first annular rack (6531) and second annular rack (6532) are synchronous reverse rotation.
8. The electric component quality detection workbench according to claim 7, wherein the positioning component (66) comprises a straight groove formed in the annular seat (67), a second electric telescopic rod (661) is fixedly connected to the inside of the straight groove, a positioning plate (662) is fixedly connected to the telescopic end of the second electric telescopic rod (661), and the positioning plate (662) is slidably connected with the inner side surface of the straight groove.
9. The electric component quality detection workbench according to claim 8, wherein the adjusting mechanism (6) further comprises a control member (68) arranged outside the first annular rack (6531), the control member (68) comprises an arc groove (681) formed in the top of the annular cavity, the inner side surface of the arc groove (681) is slidably connected with a sliding block (682), a tension spring (683) is fixedly connected between the sliding block (682) and the inner wall of the arc groove (681), a third electric telescopic rod (684) is fixedly connected to the bottom of the sliding block (682), and the telescopic end of the third electric telescopic rod (684) is fixedly connected with the first annular rack (6531).
10. An electrical component quality inspection method, characterized in that the following steps are performed using an electrical component quality inspection station according to claim 9:
s1, inserting a leakage protector to be detected into an embedded groove on a workbench (1), and taking out a zero sequence transformer (4) on the leakage protector and placing the zero sequence transformer on a placing frame (33);
s2, winding the R line (21), the T line (22) and the S line (23) on the zero sequence transformer (4) of the leakage protector at the same time through a winding mechanism (5), and driving the mounting block (52) to move downwards through the driving piece (56) after the winding is completed, so that the connecting column (55) drives the bottom inserting ends of the R line (21), the T line (22) and the S line (23) to be inserted into the inserting ports (34) on the lower test board (32), and simultaneously, when the inserting ends of the R line (21), the T line (22) and the S line (23) move downwards, the R line (21), the T line (22) and the S line (23) on the surface of the wound zero sequence transformer (4) can be gradually tightened;
s3, after the R line (21), the T line (22) and the S line (23) are arranged, controlling the placing frame (33) to move downwards to be separated from the zero sequence transformer (4) of the leakage protector;
s4, providing a standard leakage current of the leakage protector through a power supply unit, detecting the leakage protection of the leakage protector under standard state distribution through a test unit (3), and testing whether the leakage protection generates tripping action under the standard leakage current access state of the leakage protector;
s5, carrying out regular distribution test after the standard state distribution test is finished, synchronously pushing the S line (23) and the T line (22) to rotate at the same angle around the axis of the zero sequence transformer (4) in the direction close to the R line (21) through an adjusting mechanism (6), wherein the number of the rotation angles is equal to the position adjustment times of the S line (23) and the T line (22), repeating the detection process in the step S4 after each adjustment is finished, and testing whether the leakage protection generates tripping action in the standard leakage current access state of the leakage protector;
s6, carrying out irregular distribution test after the regular distribution test is finished, regulating an R line (21), an S line (23) and a T line (22) wound on a zero sequence transformer (4) of the leakage protector to positions uniformly distributed around the axis of the zero sequence transformer (4) through an adjusting mechanism (6), then moving the R line (21) between the S line (23) and the T line (22) through the adjusting mechanism (6), enabling an included angle between the R line (21) and the S line (23) to reach a set first included angle each time, enabling the number of the first included angles to be equal to the number of times of moving the R line (21), and repeating the detection process in the step S4 after each time of regulation, and testing whether the leakage protector generates tripping action in a standard leakage current access state of the leakage protector;
s7, after the irregular distribution test is completed, the placing frame (33) is controlled to move upwards to bear the zero sequence transformer (4) of the leakage protector, then the driving piece (56) is used for driving the mounting block (52) to move upwards, so that the plugging ends of the R line (21), the S line (23) and the T line (22) can be separated from the plugging port (34), and then the plugging ends of the R line (21), the S line (23) and the T line (22) are driven to reversely rotate through the winding mechanism (5), so that the R line (21), the S line (23) and the T line (22) are separated from the zero sequence transformer (4) of the leakage protector;
s8, placing the zero sequence transformer (4) which is not wound by the R line (21), the S line (23) and the T line (22) after the test is completed into a leakage protector, taking down the leakage protector, replacing the next leakage protector to be tested, and repeating the steps.
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|---|---|---|---|---|
| JPH0696658A (en) * | 1992-09-14 | 1994-04-08 | Fuji Electric Co Ltd | Operation test circuit for earth leakage breaker |
| CN104597353A (en) * | 2015-01-23 | 2015-05-06 | 深圳供电局有限公司 | Three-remote-point zero sequence protection state detecting apparatus and method |
| CN105954701A (en) * | 2016-05-31 | 2016-09-21 | 东莞市晶磁科技有限公司 | Detection device for electric leakage protection mutual inductor, and method for improving precision of mutual inductor |
| CN110726953A (en) * | 2019-11-30 | 2020-01-24 | 苏州司巴克自动化设备股份有限公司 | Conduction testing device of leakage protector |
| CN111640605A (en) * | 2020-06-16 | 2020-09-08 | 南京亚电电力自动化有限公司 | Intelligent miniature circuit breaker capable of automatically executing leakage test and implementation method |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0696658A (en) * | 1992-09-14 | 1994-04-08 | Fuji Electric Co Ltd | Operation test circuit for earth leakage breaker |
| CN104597353A (en) * | 2015-01-23 | 2015-05-06 | 深圳供电局有限公司 | Three-remote-point zero sequence protection state detecting apparatus and method |
| CN105954701A (en) * | 2016-05-31 | 2016-09-21 | 东莞市晶磁科技有限公司 | Detection device for electric leakage protection mutual inductor, and method for improving precision of mutual inductor |
| CN110726953A (en) * | 2019-11-30 | 2020-01-24 | 苏州司巴克自动化设备股份有限公司 | Conduction testing device of leakage protector |
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