CN107134375B - Circuit breaker maintenance contact - Google Patents
Circuit breaker maintenance contact Download PDFInfo
- Publication number
- CN107134375B CN107134375B CN201710470229.5A CN201710470229A CN107134375B CN 107134375 B CN107134375 B CN 107134375B CN 201710470229 A CN201710470229 A CN 201710470229A CN 107134375 B CN107134375 B CN 107134375B
- Authority
- CN
- China
- Prior art keywords
- contact
- bottom plate
- clamping piece
- adjusting rod
- circuit breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000012423 maintenance Methods 0.000 title abstract description 6
- 238000012360 testing method Methods 0.000 claims abstract description 30
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
Landscapes
- Breakers (AREA)
Abstract
The invention provides a circuit breaker maintenance contact, which comprises a contact body inserted into a moving contact, wherein the contact body comprises a bottom plate, a clamping piece and an adjusting rod; the bottom plate is provided with through holes, the clamping pieces are arranged on the bottom plate along the circumferential direction of the bottom plate, the bottom plate and the clamping pieces form a reducing sleeve, and the clamping pieces are provided with test line connecting positions; the adjusting rod is arranged in the reducing sleeve, one end of the adjusting rod penetrates through the through hole, the adjusting rod can move back and forth along the through hole, the part, located in the reducing sleeve, of the adjusting rod is provided with an annular flange, and the annular flange is used for supporting the clamping piece to achieve contact between the clamping piece and the moving contact. The middle adjusting rod provided by the invention moves back and forth in the reducing sleeve, so that the annular flange supports the clamping piece, and the clamping piece is contacted with the moving contact; the test wire is directly connected with the contact finger spring in the maintenance process, the contact finger spring is prevented from being damaged, and the situations that the moving contact is in poor contact with the static contact in the work process and the like are avoided. The efficiency of the field operation is improved, and work quality is promoted, ensures the standardization and the standardization of operation flow.
Description
Technical Field
The invention relates to the technical field of power equipment detection, in particular to a circuit breaker overhauling contact.
Background
With the development of scientific technology and the progress of the process in the manufacturing industry of electric power equipment, the overall requirements of the electric power equipment are higher and higher. In order to meet the safety requirements, the power equipment needs to be frequently detected.
At present, when a circuit breaker of power equipment is overhauled and tested, test wires are directly clamped on a contact finger spring. However, the contact finger spring cannot be used as a conductive main body, and after long-time use, the contact finger spring is often damaged by test current, so that the contact finger spring loses elasticity, and the problems that a moving contact is not well contacted with a fixed contact in work, even the contact finger cannot be connected and the like are caused.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a circuit breaker maintenance contact, which solves the problem that a contact finger spring loses elasticity due to the fact that a test wire is directly connected with the contact finger spring in the prior art, and avoids the situations that a moving contact is not well contacted with a fixed contact or even can not be connected in work.
(II) technical scheme
In order to solve the technical problem, the invention provides a circuit breaker overhaul contact which is used for connecting a moving contact of the circuit breaker with a test wire and comprises a contact body inserted into the moving contact, wherein the contact body comprises a bottom plate, a clamping piece and an adjusting rod; the bottom plate is provided with a through hole, the clamping pieces are arranged on the bottom plate along the circumferential direction of the bottom plate, the bottom plate and the clamping pieces form a reducing sleeve, and the clamping pieces are provided with test wire connecting positions; the adjusting rod is arranged in the diameter-changing sleeve, one end of the adjusting rod penetrates through the through hole, the adjusting rod can move back and forth along the through hole, an annular flange is arranged on the portion, located in the diameter-changing sleeve, of the adjusting rod, and the annular flange is used for supporting the clamping piece to achieve the purpose that the clamping piece is in contact with the moving contact.
Furthermore, the inner diameter of one end of the reducing sleeve close to the bottom plate is larger than that of one end of the reducing sleeve far away from the bottom plate.
Further, the clamping piece and the bottom plate are of an integral structure.
Furthermore, a boss matched with the moving contact is arranged on the outer side of the bottom plate, and the through hole penetrates through the boss.
Further, the adjusting rod is in threaded connection with the through hole.
Further, the annular flange is of an inverted frustum structure.
Further, the test wire connecting position is a threaded hole formed in the clamping piece, and the test wire is fixedly connected with the clamping piece through a bolt.
Further, the test wire connecting position is a clamp arranged on the clamping piece, and the test wire is fixedly connected with the clamping piece through the clamp.
Further, the clamping piece and the bottom plate are both made of red copper.
Further, the adjusting rod and the annular flange are both made of brass.
(III) advantageous effects
Compared with the prior art, the invention has the following advantages:
the invention provides a breaker overhaul contact which is used for connecting a moving contact of a breaker with a test wire. The clamping piece and the bottom plate form a reducing sleeve, the adjusting rod moves back and forth in the reducing sleeve to enable the annular flange to support the clamping piece, the clamping piece is in contact with the moving contact, and the clamping piece is connected with the test wire; the contact finger spring is prevented from being damaged by the fact that a test wire is directly connected with the contact finger spring in overhauling and testing, and further the situations that a moving contact is not well contacted with a static contact in work, even the contact cannot be conducted and the like are avoided. The field operation efficiency is greatly improved, the working quality is improved, and the standardization of the operation flow are ensured.
Drawings
FIG. 1 is a schematic diagram of a circuit breaker service contact according to the present invention;
FIG. 2 is a schematic structural diagram of an adjusting lever of a circuit breaker inspection contact according to the present invention;
figure 3 is a top view of a circuit breaker service contact of the present invention;
description of the reference numerals
1-a bottom plate; 2-a clamping piece; 3-adjusting the rod; 4-boss; 5-an annular flange; 6-through hole.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the breaker inspection contact provided in this embodiment is used to connect a moving contact of a breaker with a test line.
The service contact comprises a contact body inserted into the movable contact. The contact body comprises a bottom plate 1, a clamping piece 2 and an adjusting rod 3.
The bottom plate 1 is a circular plate structure, and a through hole 6 is arranged at the center thereof. A groove is arranged in the moving contact, a boss 4 matched with the groove is arranged on the outer side of the bottom plate 1, and a through hole 6 penetrates through the boss 4.
As shown in fig. 2, the plurality of clips 2 are disposed on the bottom plate 1 along the circumferential direction of the bottom plate 1, and the bottom plate 1 and the clips 2 form a diameter-variable sleeve, wherein the plurality of clips 2 form a side wall of the diameter-variable sleeve. The clamping piece 2 is provided with a test wire connecting position. In this embodiment, the inner diameter of the end of the reducing sleeve close to the bottom plate 1 is larger than the inner diameter of the end of the reducing sleeve far away from the bottom plate 1. Furthermore, the test wire connecting position is a threaded hole or a clamp arranged on the clamping piece 2, and the test wire is connected with the clamping piece 2 through a bolt or the clamp.
The adjusting rod 3 is arranged in the reducing sleeve formed by the clamping pieces 2, and one end of the adjusting rod 3 penetrates through the through hole 6. The adjusting rod 3 can move back and forth along the through hole 6. The part of the adjusting rod 3 positioned in the reducing sleeve is provided with an annular flange 5. The adjusting rod 3 is controlled to move back and forth along the through hole 6, so that the annular flange 5 moves along the axial direction of the diameter-variable sleeve, the clamping piece 2 is supported, and the clamping piece 2 is contacted with the moving contact. As shown in fig. 3, in the present embodiment, the adjusting rod 3 is in threaded connection with the through hole 6, the adjusting rod 3 is provided with an external thread, the through hole 6 is provided with an internal thread which is matched with the adjusting rod 3, and the adjusting rod 3 is rotated to move along the axial direction of the reducing sleeve.
Further, the annular flange 5 is of an inverted truncated structure.
Furthermore, the clamping piece 2 and the bottom plate 1 are integrated into a whole
Further, the clamping piece 2 and the bottom plate 1 are both made of red copper, and the adjusting rod 3 and the annular flange 5 are both made of brass.
This is described in further detail below with specific service procedures.
Firstly, screwing the adjusting rod 3 into the reducing sleeve and reaching the bottom to complete assembly;
secondly, disassembling a static contact of the circuit breaker, and inserting a contact body into the moving contact;
and thirdly, the adjusting rod 3 is rotated to adjust the annular flange 5 to a corresponding position, and the annular flange 5 supports the clamping piece 2 to realize the contact of the clamping piece 2 and the moving contact.
And fourthly, connecting the test wire with the clamping piece 2 and completing the test.
The embodiment provides a breaker overhaul contact for connecting a moving contact of a breaker and a test wire. The contact main body is arranged in the moving contact, wherein the plurality of clamping pieces and the bottom plate form a reducing sleeve, the adjusting rod moves back and forth in the reducing sleeve to enable the annular flange to support the clamping pieces, so that the clamping pieces are contacted with the moving contact, and the clamping pieces are connected with the test line; the test wire is prevented from being directly connected with the contact finger spring to damage the contact finger spring in the maintenance process, and further the situations that the moving contact is not well contacted with the static contact in work, even the moving contact cannot be connected and the like are avoided; the field operation efficiency is greatly improved, the working quality is improved, and the standardization of the operation flow are ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A breaker overhaul contact is used for connecting a moving contact of a breaker with a test wire and is characterized by comprising a contact body inserted into the moving contact, wherein the contact body comprises a bottom plate, a clamping piece and an adjusting rod; the bottom plate is provided with a through hole, the clamping pieces are arranged on the bottom plate along the circumferential direction of the bottom plate, the bottom plate and the clamping pieces form a reducing sleeve, and the clamping pieces are provided with test wire connecting positions; the adjusting rod is arranged in the diameter-variable sleeve, one end of the adjusting rod penetrates through the through hole, the adjusting rod can move back and forth along the through hole, an annular flange is arranged on the part of the adjusting rod, which is located in the diameter-variable sleeve, and the annular flange is used for supporting the clamping piece to realize the contact between the clamping piece and the moving contact;
the inner diameter of one end, close to the bottom plate, of the reducing sleeve is larger than that of one end, far away from the bottom plate, of the reducing sleeve.
2. The circuit breaker service contact of claim 1, wherein the clip is a unitary structure with the bottom plate.
3. The circuit breaker service contact of claim 1, wherein a boss is disposed on an outer side of the base plate for engaging the movable contact, and the through hole extends through the boss.
4. The circuit breaker service contact of claim 1, wherein the adjustment stem is threadably connected to the through hole.
5. The circuit breaker service contact of claim 1, wherein the annular flange is an inverted frustum structure.
6. The circuit breaker service contact of claim 1, wherein the test wire connection location is a threaded hole disposed on the clamping piece, and the test wire is fixedly connected to the clamping piece by a bolt.
7. The circuit breaker service contact of claim 1, wherein the test wire connection location is a clamp disposed on the clamping piece, the test wire being fixedly connected to the clamping piece through the clamp.
8. The circuit breaker service contact of any one of claims 1-7, wherein the clip and the bottom plate are each made of copper.
9. The circuit breaker service contact of claim 8, wherein the adjustment stem and the annular flange are each made of brass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710470229.5A CN107134375B (en) | 2017-06-20 | 2017-06-20 | Circuit breaker maintenance contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710470229.5A CN107134375B (en) | 2017-06-20 | 2017-06-20 | Circuit breaker maintenance contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107134375A CN107134375A (en) | 2017-09-05 |
| CN107134375B true CN107134375B (en) | 2020-02-04 |
Family
ID=59735714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710470229.5A Active CN107134375B (en) | 2017-06-20 | 2017-06-20 | Circuit breaker maintenance contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107134375B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812037A (en) * | 2012-11-11 | 2014-05-21 | 国家电网公司 | Isolation switch moving contact maintenance tool |
| CN204205095U (en) * | 2014-07-31 | 2015-03-11 | 国网河南省电力公司济源供电公司 | KYN28 type switch cabinet bus fixed contact earthing device |
| CN206976184U (en) * | 2017-06-20 | 2018-02-06 | 国家电网公司 | A kind of overhaul of line breaker contact |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203014247U (en) * | 2012-11-28 | 2013-06-19 | 荥阳市电业局 | Tong-type ground-wire-connecting device |
| JP6360023B2 (en) * | 2015-10-19 | 2018-07-18 | 東芝三菱電機産業システム株式会社 | Auxiliary tool for mounting plate |
-
2017
- 2017-06-20 CN CN201710470229.5A patent/CN107134375B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812037A (en) * | 2012-11-11 | 2014-05-21 | 国家电网公司 | Isolation switch moving contact maintenance tool |
| CN204205095U (en) * | 2014-07-31 | 2015-03-11 | 国网河南省电力公司济源供电公司 | KYN28 type switch cabinet bus fixed contact earthing device |
| CN206976184U (en) * | 2017-06-20 | 2018-02-06 | 国家电网公司 | A kind of overhaul of line breaker contact |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107134375A (en) | 2017-09-05 |
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