CN114623778B - Vacuum circuit breaker joins in marriage cabinet detection mechanism - Google Patents
Vacuum circuit breaker joins in marriage cabinet detection mechanism Download PDFInfo
- Publication number
- CN114623778B CN114623778B CN202210242058.1A CN202210242058A CN114623778B CN 114623778 B CN114623778 B CN 114623778B CN 202210242058 A CN202210242058 A CN 202210242058A CN 114623778 B CN114623778 B CN 114623778B
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- China
- Prior art keywords
- contact
- detection probe
- target
- color
- circuit breaker
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- 238000001514 detection method Methods 0.000 title claims abstract description 75
- 239000000523 sample Substances 0.000 claims abstract description 66
- 230000003068 static effect Effects 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000003780 insertion Methods 0.000 claims abstract description 11
- 230000037431 insertion Effects 0.000 claims abstract description 11
- 230000001680 brushing effect Effects 0.000 claims abstract description 8
- 238000009500 colour coating Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 10
- 230000004323 axial length Effects 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 241000722921 Tulipa gesneriana Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/22—Measuring arrangements characterised by the use of optical techniques for measuring depth
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a detection mechanism for a vacuum circuit breaker cabinet, wherein a detection probe is arranged in a contact arm of the circuit breaker, a color brushing area is arranged on the front end surface of the detection probe, a target is arranged in a fixed contact, and the end surface of the target opposite to the detection probe is used for contacting with the color brushing area and forming a color impression on the end surface. According to the invention, whether the center of the plum blossom contact and the center of the static contact deviate or not is judged by utilizing the color area left on the target by the outer end face of the detection probe, the structure judges the insertion depth between the center of the plum blossom contact and the center of the static contact by utilizing the change of the color area on the outer circumferential surface of the detection probe, and meanwhile, the invisible circuit breaker cabinet matching process can be converted into a visible and measurable process through simple operation, so that the analysis of cabinet matching results by detection personnel and technicians is facilitated, the size problem of the switch cabinet can be found quickly, and the adjustment is convenient.
Description
Technical Field
The invention belongs to the technical field of detection of vacuum circuit breaker cabinet matching, and particularly relates to a detection mechanism of a vacuum circuit breaker cabinet matching.
Background
In the process of shaking the vacuum circuit breaker into the switch cabinet, after the vacuum circuit breaker opens a valve of the cabinet, people cannot continuously see the matching process of the vacuum circuit breaker and the switch cabinet due to the design of the product protection level, and the matching condition of the plum blossom contact on the contact arm side of the circuit breaker and the static contact of the switch cabinet cannot be confirmed. The problem that whether the matching is not in place and the contact surface is uneven can only be judged through the fuzzy moment in the shaking process, and even if the vacuum circuit breaker is successfully matched with a cabinet, the problems that the axis of the plum blossom contact on the contact arm side of the circuit breaker is excessively deviated from the axis of the static contact and the insertion depth is uncertain exist: if the offset is too large, the contact surface is poor in contact, the loop resistance is increased, so that the temperature rise of a conductive loop is too high due to long-term electrified operation, and the resistance and the electrical performance of the circuit are affected; if the insertion depth is too large, the contact arm of the circuit breaker and the static contact are completely attached, but the vacuum circuit breaker is not yet swung into place; if the insertion depth is too small, the vacuum circuit breaker is already rocked into place, but the plum blossom contact on the contact arm side of the circuit breaker is not effectively meshed with the static contact, and the virtual connection of the conductive loop is generated.
Once the problems occur, the size of the circuit breaker and the size of the switch cabinet are required to be measured respectively, and the appearance size of the circuit breaker can be calculated through a measuring tool; the switch cabinet is mostly a sheet metal part, the error is large, the internal structure is complex, a plurality of sizes cannot be measured, the installation position can be detached and adjusted repeatedly, the matching with the circuit breaker can be successful for many times, and a large amount of manpower and material resources are needed in the process.
Therefore, the problems are required to be solved before the cabinet is assembled, the offset of the axis of the circuit breaker conducting piece and the axis of the switch cabinet conducting piece is ensured to be in an allowable range, and the product can be ensured to run safely.
Disclosure of Invention
The invention aims to provide a detection mechanism structure of a vacuum circuit breaker cabinet, which aims at solving the problem that the existing relay structure cannot meet the high-voltage requirement. The structure judges whether the axis of the plum blossom contact and the axis of the static contact deviate or not by utilizing a color area left on a target by the outer end face of the detection probe, and judges the insertion depth between the axis of the plum blossom contact and the axis of the static contact by utilizing the change of the color area on the outer circumferential surface of the detection probe.
The technical scheme adopted by the invention is as follows:
The utility model provides a vacuum circuit breaker joins in marriage cabinet detection mechanism, includes circuit breaker contact arm and stationary contact, and circuit breaker contact arm front side is provided with the plum blossom contact, and stationary contact and plum blossom contact insert fit, its characterized in that: the circuit breaker touch arm is internally provided with a detection probe, the front end face of the detection probe is provided with a color brushing area, the static contact is internally provided with a target, and the end face of the target opposite to the detection probe is used for contacting with the color brushing area and forming a color impression on the end face.
Further: the circuit breaker is characterized in that a contact arm central position shaft is arranged in the contact arm of the circuit breaker, and the detection probe is arranged in the contact arm central position shaft.
Further: the outer edge of the detection probe is provided with a color coating area, and the rear side edge of the color coating area is flush with the front side end surface of the shaft at the center of the contact arm;
When the quincuncial contact and the fixed contact are inserted, the target can push the detection probe to slide into the central position shaft of the contact arm, and the area of the color coating area left outside the central position shaft of the contact arm is changed.
Further: the outer edge of the detection probe is provided with a straight section with equal outer diameter, and the surface of the straight section is provided with the color smearing area.
Further: at least one annular groove is arranged on the outer edge of the detection probe at the rear side of the straight section, and a probe sealing ring is arranged in the annular groove and used for increasing friction force between the detection probe and the contact arm when the detection probe is inserted into the shaft at the central position of the contact arm.
Further: and a target seat is arranged in the fixed contact, and the target seat is embedded towards the end face of the detection probe.
Further: the outer edge of the target seat is provided with at least one annular groove, a target sealing ring is arranged in the annular groove, and the target sealing ring is used for increasing friction force between the target seat and the fixed contact when the target seat is inserted into the fixed contact.
Further: the end of the target seat facing the detection probe is provided with a limiting edge or a limiting block, and the limiting edge or the limiting block limits the depth of the target seat inserted into the fixed contact when the detection probe contacts with the target.
Further: the end face of the target seat, which faces the detection probe, is provided with a groove, the target is embedded in the groove, the inner wall of the groove is provided with a convex rib or a convex block, and the convex rib or the convex block is used for clamping the side face of the target.
The invention has the following beneficial technical effects:
In the invention, whether the axis of the plum blossom contact and the axis of the static contact deviate or not is judged by utilizing the color area left on the target by the outer end face of the detection probe, the insertion depth between the axis of the plum blossom contact and the axis of the static contact is judged by utilizing the change of the color area on the outer circumferential surface of the detection probe, the required parts have simple structure and convenient processing, and the operations can be immediately perceived and implemented only through simple training, so that the structure is simple and easy to understand, and the work enthusiasm of workers is greatly improved; meanwhile, the invisible circuit breaker cabinet matching process can be changed into a visible and measurable process through simple operation, so that detection personnel and technicians can analyze cabinet matching results, the size problem of the switch cabinet can be found rapidly, and adjustment is facilitated.
Drawings
Fig. 1 is a schematic view of the positions of a circuit breaker contact arm and stationary contact of the present invention:
Fig. 2 is a cross-sectional view of the circuit breaker contact arm and stationary contact positions of fig. 1;
FIG. 3 is a schematic view of the stationary contact of FIG. 2 fully inserted into a contact arm of a circuit breaker;
FIG. 4 is a schematic structural view of a detection probe;
Fig. 5 is an axial projection view of the target and the target holder.
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 evident that the embodiments described are only some embodiments of the present invention, but not all embodiments.
The invention discloses a vacuum circuit breaker cabinet detection mechanism, as shown in figures 1-5, which comprises a circuit breaker contact arm 2 and a fixed contact 3, wherein the circuit breaker contact arm is arranged on a handcart 1, a quincuncial contact 21 is arranged on the front side of the circuit breaker contact arm, and the fixed contact and the quincuncial contact are in plug-in fit, and the innovation of the invention is that: a detection probe 10 is arranged in the contact arm of the circuit breaker, a color brushing area is arranged on the front end surface 24 of the detection probe, a target 19 is arranged in the fixed contact, and the end surface 25 of the target opposite to the detection probe is used for contacting with the color brushing area and forming a color impression 26 on the end surface.
The circuit breaker is provided with a contact arm central position shaft 7 in the contact arm inner part 5, a plurality of sealing rings 6 are arranged on the outer edge of the contact arm central position shaft, and the detection probe is arranged in the contact arm central position shaft inner part 8.
The outer edge of the detection probe is provided with a color coating area (on the outer edge of the detection probe marked by a two-dot chain line in fig. 4), and the rear side edge of the color coating area is flush with the front side end surface of the shaft at the center position of the contact arm; when the quincuncial contact and the fixed contact are inserted, the target can push the detection probe to slide into the central position shaft of the contact arm, and the area of the color coating area left outside the central position shaft of the contact arm is changed.
The outer edge of the detection probe is provided with a straight section 23 with equal outer diameter, and the surface of the straight section is provided with the color coating area. At least one annular groove 22 is arranged on the outer edge of the detection probe at the rear side of the straight section, and a probe sealing ring 9 is arranged in the annular groove and used for increasing the friction force between the detection probe and the contact arm when the detection probe is inserted into the shaft at the center position of the contact arm.
The fixed contact is internally provided with a target seat 14, and the end face of the target seat facing the detection probe is embedded with the target. The outer fringe of target seat is provided with at least one annular groove, is provided with the target sealing washer 16 in the annular groove, and this target sealing washer is used for increasing the frictional force between the two when the target seat inserts inside the stationary contact.
The tip that the target seat was towards detecting probe is provided with spacing limit or stopper 20, and this spacing limit or stopper limit the depth that the target seat inserted the static contact when detecting probe and target contact. The end face of the target seat facing the detection probe is provided with a groove 18, the target is embedded in the groove, the inner wall of the groove is provided with a convex edge or a convex block 13, and the convex edge or the convex block is used for clamping the side face of the target.
The detection process of the invention is as follows:
Starting from fig. 2, the tulip contact and the stationary contact are in a mutually separated state. The detection probe is inserted in the center position shaft of the touch arm, the rear edge of the color coating area and the front end surface of the center position shaft of the touch arm are flush with each other in the vertical direction as shown in fig. 2 (or the rear edge of the straight section and the front end surface of the center position shaft of the touch arm are flush with each other in the vertical direction as shown in fig. 2), and the axial length of the color coating area (straight section) is L.
When the fixed contact is inserted from the plum blossom contact opening 12, the front end face of the detection probe contacts with the end face of the target alignment to form a color impression as shown in fig. 5.
The handcart continues to travel, and the target pushes the detection probe to slide towards the inside of the central position shaft of the contact arm along the arrow direction in FIG. 3;
When the static contact is fully inserted, the axial length of the part of the color coating area (straight section) of the detection probe, which is left outside the shaft at the center position of the contact arm, is L1.
The handcart is reversed out, the color impression is checked, and the difference between L and L1 is calculated, wherein the color impression 26 is obviously not overlapped with a central store of the end face 25, and the error is large, so that structures such as the handcart and the like need to be adjusted to enable the color impression to be adjusted to the right lower side of the end face of the graph 5;
After the difference between L and L1 is calculated, the insertion depth of the static contact can be known, and whether the static contact is in a normal insertion state or not is judged.
In the invention, whether the axis of the plum blossom contact and the axis of the static contact deviate or not is judged by utilizing the color area left on the target by the outer end face of the detection probe, the insertion depth between the axis of the plum blossom contact and the axis of the static contact is judged by utilizing the change of the color area on the outer circumferential surface of the detection probe, the required parts have simple structure and convenient processing, and the operations can be immediately perceived and implemented only through simple training, so that the structure is simple and easy to understand, and the work enthusiasm of workers is greatly improved; meanwhile, the invisible circuit breaker cabinet matching process can be changed into a visible and measurable process through simple operation, so that detection personnel and technicians can analyze cabinet matching results, the size problem of the switch cabinet can be found rapidly, and adjustment is facilitated.
Claims (1)
1. The utility model provides a vacuum circuit breaker joins in marriage cabinet detection mechanism, includes circuit breaker contact arm and stationary contact, and circuit breaker contact arm front side is provided with the plum blossom contact, and stationary contact and plum blossom contact insert fit, its characterized in that: a detection probe is arranged in the circuit breaker contact arm, a color brushing area is arranged on the front end face of the detection probe, a target is arranged in the fixed contact, and the end face of the target opposite to the detection probe is used for contacting with the color brushing area and forming a color impression on the end face;
a contact arm central position shaft is arranged in the contact arm of the circuit breaker, and the detection probe is arranged in the contact arm central position shaft;
the outer edge of the detection probe is provided with a color coating area, and the rear side edge of the color coating area is flush with the front side end surface of the shaft at the center of the contact arm;
When the quincuncial contact is inserted with the fixed contact, the target can push the detection probe to slide into the central position shaft of the contact arm and change the area of the color coating area left outside the central position shaft of the contact arm;
The outer edge of the detection probe is provided with a straight section with equal outer diameter, and the surface of the straight section is provided with the color smearing area;
at least one annular groove is formed in the outer edge of the detection probe at the rear side of the straight section, and a probe sealing ring is arranged in the annular groove and used for increasing friction force between the detection probe and the contact arm when the detection probe is inserted into the shaft at the central position of the contact arm;
a target seat is arranged in the fixed contact, and the end face of the target seat facing the detection probe is embedded with the target;
the outer edge of the target seat is provided with at least one annular groove, a target sealing ring is arranged in the annular groove, and the target sealing ring is used for increasing the friction force between the target seat and the fixed contact when the target seat is inserted into the fixed contact;
The end part of the target seat, which faces the detection probe, is provided with a limiting edge or a limiting block, and the limiting edge or the limiting block limits the depth of the target seat inserted into the fixed contact when the detection probe contacts with the target;
The end face of the target seat, which faces the detection probe, is provided with a groove, the target is embedded in the groove, the inner wall of the groove is provided with a convex rib or a convex block, and the convex rib or the convex block is used for clamping the side face of the target;
the use process of the detection mechanism is as follows:
the quincuncial contact and the fixed contact are in a mutually separated state, the detection probe is inserted into the central position shaft of the contact arm, the rear side edge of the color coating area is flush with the front side end surface of the central position shaft of the contact arm in the vertical direction, and the axial length of the color coating area is L;
The handcart is made to advance, the quincuncial contact gradually approaches to the fixed contact, and when the fixed contact is inserted from the opening of the quincuncial contact, the front end face of the detection probe contacts with the aligned end face of the target to form a color impression;
the handcart continues to travel, and the target pushes the detection probe to slide towards the inside of the central position shaft of the contact arm;
when the static contact is fully inserted, the axial length of the part of the color smearing area of the detection probe, which is left outside the central position shaft of the contact arm, is L1;
Reversing the handcart out, checking the color impression, calculating the difference between L and L1, and adjusting the structure of the handcart to adjust the color impression;
After the difference between L and L1 is calculated, the insertion depth of the static contact can be known, and whether the static contact is in a normal insertion state or not is judged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210242058.1A CN114623778B (en) | 2022-03-11 | 2022-03-11 | Vacuum circuit breaker joins in marriage cabinet detection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210242058.1A CN114623778B (en) | 2022-03-11 | 2022-03-11 | Vacuum circuit breaker joins in marriage cabinet detection mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114623778A CN114623778A (en) | 2022-06-14 |
| CN114623778B true CN114623778B (en) | 2024-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210242058.1A Active CN114623778B (en) | 2022-03-11 | 2022-03-11 | Vacuum circuit breaker joins in marriage cabinet detection mechanism |
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| Country | Link |
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| CN (1) | CN114623778B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202333521U (en) * | 2011-10-17 | 2012-07-11 | 甘肃省电力公司白银供电公司 | Measurement device of inserting size of movable and fixed contacts of 6-35 kV sealed-type switching cabinet breaker |
| CN204228040U (en) * | 2014-11-14 | 2015-03-25 | 中黔电气集团股份有限公司 | A kind of check-out console checking moving contact of breaker position deviation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010064719B3 (en) * | 2009-03-18 | 2022-06-30 | Helmut Fischer GmbH Institut für Elektronik und Messtechnik | Procedure for the electrical control of a measuring stand |
| CN204228041U (en) * | 2014-11-14 | 2015-03-25 | 中黔电气集团股份有限公司 | A kind of mark cone of check valve equipment dynamic/static contact centering |
| CN204228164U (en) * | 2014-11-14 | 2015-03-25 | 中黔电气集团股份有限公司 | A kind of target checking static contact centre deviation |
| CN106067659B (en) * | 2016-07-29 | 2018-08-10 | 国网浙江省电力公司绍兴供电公司 | Circuit breaker cart dynamic/static contact contacts depth measurement device and method |
| CN211855170U (en) * | 2020-05-20 | 2020-11-03 | 烟台海珐电气科技有限公司 | Switch cabinet dynamic and static contact depth measurer |
| CN214479022U (en) * | 2021-03-31 | 2021-10-22 | 国电投周口燃气热电有限公司 | Limiting device for circuit breaker handcart of switch cabinet |
-
2022
- 2022-03-11 CN CN202210242058.1A patent/CN114623778B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202333521U (en) * | 2011-10-17 | 2012-07-11 | 甘肃省电力公司白银供电公司 | Measurement device of inserting size of movable and fixed contacts of 6-35 kV sealed-type switching cabinet breaker |
| CN204228040U (en) * | 2014-11-14 | 2015-03-25 | 中黔电气集团股份有限公司 | A kind of check-out console checking moving contact of breaker position deviation |
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| Publication number | Publication date |
|---|---|
| CN114623778A (en) | 2022-06-14 |
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