CN112103674A - Special clamp for mechanical characteristic test of circuit breaker - Google Patents
Special clamp for mechanical characteristic test of circuit breaker Download PDFInfo
- Publication number
- CN112103674A CN112103674A CN202011011196.6A CN202011011196A CN112103674A CN 112103674 A CN112103674 A CN 112103674A CN 202011011196 A CN202011011196 A CN 202011011196A CN 112103674 A CN112103674 A CN 112103674A
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- CN
- China
- Prior art keywords
- pressing block
- sleeve
- vertical plate
- plate
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4854—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a wire spring
- H01R4/4863—Coil spring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- 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
- G01R1/0425—Test clips, e.g. for IC's
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a special clamp for a mechanical characteristic test of a circuit breaker, which comprises a first pressing block and a second pressing block, wherein the first pressing block and the second pressing block have the same structure and respectively comprise a first vertical plate, a second vertical plate and a transverse plate, the first vertical plate is arranged above one end of the transverse plate, the second vertical plate is arranged below the other end of the transverse plate, a through groove is formed in the transverse plate on the first pressing block, the second pressing block penetrates through the through groove to be arranged on the first pressing block, a first sleeve is arranged on the first pressing block on the inner side of the second vertical plate, a second sleeve is arranged on the second pressing block on the inner side of the second vertical plate, and the second sleeve is positioned inside the first sleeve. The contact pin testing fixture can be quickly and fixedly connected with the contact pin of the aviation plug through the matching of the first pressing block and the second pressing block, and the contact pin is in surface contact with the testing clamp, so that the stability during testing is improved, the safety and the accuracy of a circuit breaker switch characteristic test are ensured, and the testing cost is reduced.
Description
Technical Field
The invention belongs to the technical field of high-voltage tests of electrical equipment, and particularly relates to a special clamp for a mechanical characteristic test of a circuit breaker.
Background
At present, a high-voltage circuit breaker is main power equipment of a transformer substation, in order to guarantee safe and stable operation of a power system, a maintenance team needs to perform multiple tests on a large number of circuit breakers every year, wherein mechanical characteristic tests of the circuit breakers are the most complicated and the time consumption is the longest, in the test process, the test equipment sends opening and closing signals to be clamped on an aviation plug contact pin or a terminal by using an alligator clamp, the alligator clamp is in a shaft type moving mode, so that the contact mode of the alligator clamp and the aviation plug is point contact, the circuit breakers can generate large mechanical vibration in the test process, the alligator clamp is loosened, the contact pins of the aviation plug are distributed densely, the loosening of the alligator clamp easily causes short circuit, the test equipment is easily burnt out, the cost of the test is increased, and.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the special clamp for the mechanical characteristic test of the circuit breaker.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a experimental special clamp of circuit breaker mechanical characteristic, includes that first press briquetting, second press briquetting, first press briquetting all includes first riser, second riser, diaphragm with the second press briquetting structure the same, the first riser is installed in diaphragm one end top, and the second riser is installed in diaphragm other end below, logical groove has been seted up to the diaphragm on the first press briquetting, the second passes logical groove and installs on first press briquetting according to the briquetting, first press briquetting is gone up second riser inboard and is installed first sleeve, second press briquetting is gone up second riser inboard and is installed the second sleeve, the second sleeve is located first sleeve's inside, the locating lever is installed to second sleeve's tip both sides, the spout has been seted up to both sides on the first sleeve, the locating lever is installed in the spout, first sleeve and second sleeve outside are equipped with first spring, the both ends of first spring are installed respectively at first press briquetting, The second presses down on the second riser on the briquetting, still install clamping device on the second riser on the first briquetting of pressing, fix test cable metal part through clamping device, thereby make whole test clamp electrically conductive, press the briquetting to the inboard through pressing to first, the second presses down, the locating lever moves along the spout on the first sleeve on the second sleeve, first briquetting is pressed to the second, the first riser reverse motion on the briquetting is pressed to the second, make the aviation plug place between two first risers, stop applying external force, first briquetting is pressed to the second, the second presses the effect reverse motion of briquetting at first spring, thereby make two first risers fix the aviation plug, be surface contact between the contact pin test of aviation plug presss from both sides, stability when having improved the experiment, guarantee breaker switch characteristic test's security and accuracy, the cost of experiment has been reduced.
Preferably, clamping device is annular arm, annular arm quantity is two and all installs the second riser inboard on first pressure briquetting, and it is fixed to test cable metal part to make it take place to deform through applying external force to two annular arms, makes test cable metal part and first pressure briquetting contact, realizes electrically conductively, and test cable metal part and test clamp separation when preventing to experimental stability has been guaranteed.
Preferably, first sleeve internally mounted has the arch, second sleeve outside is opened and is equipped with protruding complex recess, when first sleeve and second sleeve take place relative displacement, first sleeve and second sleeve carry out linear motion through arch and recess, prevent to take place relative rotation, influence normal work, have improved the stability when experimental.
Preferably, the first riser on the first pressing block is circular-arc, has further improved the area of contact of first riser and aviation plug contact pin, is favorable to experimental going on smoothly.
Preferably, the insulating layer is wrapped on the outer sides of the first pressing block and the second pressing block, so that the short circuit condition in the test process is prevented, and the stability in the test process is guaranteed.
The invention has the beneficial effects that:
1) through the cooperation that first press the briquetting and the second press the briquetting can be fast with aviation plug's contact pin fixed connection, be face contact between contact pin and the experimental clamp, stability when having improved the experiment guarantees circuit breaker switch characteristic test's security and accuracy, has reduced experimental cost.
2) Clamping device is the annular arm, and annular arm quantity is two and all installs the second riser inboard on first pressure briquetting, and it makes it take place to deform through applying external force to two annular arms and fixes test cable metal part, makes test cable metal part and first pressure briquetting contact, realizes electrically conductively, and test cable metal part and test clamp separation when preventing to test to stability when having guaranteed the experiment.
3) First sleeve internally mounted has the arch, and the second sleeve outside is opened and is equipped with protruding complex recess, and when first sleeve and second sleeve took place relative displacement, first sleeve and second sleeve carried out linear motion through arch and recess, prevented to take place relative rotation, influenced normal work, stability when having improved the experiment.
4) First riser on the pressing block is circular-arc, has further improved the area of contact of first riser and aviation plug contact pin, is favorable to experimental going on smoothly.
5) The first insulating layer that has wrapped up according to the briquetting and the second according to the briquetting outside prevents to take place the short circuit condition among the test process to stability when having guaranteed the experiment.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment 1 of a special clamp for a mechanical characteristic test of a circuit breaker.
Fig. 2 is a schematic structural view of a first sleeve and a second sleeve in embodiment 1 of a special clamp for testing mechanical characteristics of a circuit breaker.
Fig. 3 is a schematic structural view of a clamping device in embodiment 2 of a special clamp for a circuit breaker mechanical characteristic test of the invention.
Fig. 4 is a schematic structural view of a clamping device in embodiment 3 of a special clamp for a circuit breaker mechanical characteristic test according to the present invention.
In the figure: 1. a first pressing block; 11. a through groove; 2. a second pressing block; 3. a first sleeve; 31. a protrusion; 32. a chute; 4. a second sleeve; 41. positioning a rod; 42. a groove; 5. a first spring; 6. a clamping device; 61. an annular arm; 601. a support arm; 602. a first encircling arm; 603. a second encircling arm; 604. a rectangular ring; 605. a handle; 606. a support plate; 607. clamping the handle; 608. a rotating shaft; 609. a pull rod; 610. a baffle plate; 611. a second spring; 612. pull ring, 613, placing groove.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to fig. 1 to 4, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
A special clamp for a mechanical characteristic test of a circuit breaker comprises a first pressing block 1 and a second pressing block 2, wherein the first pressing block 1 and the second pressing block 2 respectively comprise a first vertical plate, a second vertical plate and a transverse plate in the same structure, the first vertical plate is arranged above one end of the transverse plate, the second vertical plate is arranged below the other end of the transverse plate, a through groove 11 is formed in the transverse plate on the first pressing block 1, the second pressing block 2 is arranged on the first pressing block 1 through the through groove 11, a first sleeve 3 is arranged on the first pressing block 1 on the inner side of the second vertical plate, a second sleeve 4 is arranged on the second pressing block 2 on the inner side of the second vertical plate, the second sleeve 4 is positioned inside the first sleeve 3, positioning rods 41 are arranged on two sides of the end part of the second sleeve 4, sliding grooves 32 are formed on two sides of the first sleeve 3, the positioning rods 41 are arranged in the sliding grooves 32, the outer sides of the first sleeve 3 and the second sleeve 4 are provided with a first spring 5, two ends of the first spring 5 are respectively arranged on second vertical plates on the first pressing block 1 and the second pressing block 2, a clamping device 6 is further arranged on the second vertical plate on the first pressing block 1, the metal part of the test cable is fixed through the clamping device 6, so that the whole test clip is conductive, the aviation plug is placed between the two first vertical plates through inwards pressing the first pressing block and the second pressing block, the positioning rod on the second sleeve moves along a sliding groove on the first sleeve, the first vertical plates on the first pressing block 1 and the second pressing block 2 move in reverse directions, the application of external force is stopped, the first pressing block 1 and the second pressing block 2 move in reverse directions under the action of the first spring 5, so that the two first vertical plates fix the aviation plug, and the contact pin test clip of the aviation plug is in surface contact, the stability during the test is improved, the safety and the accuracy of the circuit breaker switch characteristic test are ensured, and the test cost is reduced.
Clamping device 6 is annular arm 61, annular arm 61 quantity is two and all installs the second riser inboard on first pressure briquetting 1, and it is fixed to test cable metal part to make it take place to deform through applying external force to two annular arms 61, makes test cable metal part and first pressure briquetting 1 contact, realizes electrically conducting, prevents that test cable metal part from pressing from both sides the separation with the test during the experiment to stability when having guaranteed the experiment.
First sleeve 3 internally mounted has protruding 31, second sleeve 4 outside seted up with protruding 31 complex recess 42, when first sleeve 3 and second sleeve 4 take place relative displacement, first sleeve 3 and second sleeve 4 carry out linear motion through protruding 31 and recess 42, prevent to take place relative rotation, influence normal work, stability when having improved the experiment.
First riser according to on the briquetting 1 is circular-arc, has further improved the area of contact of riser and aviation plug contact pin, is favorable to experimental going on smoothly, first briquetting 1 is pressed with the second and is pressed the briquetting 2 outside and all wrap up there is the insulating layer, prevents the short circuit condition in the testing process to stability when having guaranteed the experiment.
The clamping device 6 comprises a supporting arm 601, a first encircling arm 602, a second encircling arm 603 and a rectangular ring 604, wherein the supporting arm 602 is mounted on the inner side of a second vertical plate on the first pressing block 1, the first encircling arm 602 and the second encircling arm 603 are respectively rotatably mounted at two ends of the supporting arm 601, one end of the rectangular ring 604 is rotatably mounted at the end part of the first encircling arm 601, the end part of the second encircling arm 603 is rotatably mounted with a handle 605, the other end of the rectangular ring 604 is mounted on the handle 605, the opening and closing sizes of the first encircling arm 602 and the second encircling arm 603 are changed by shifting the handle 605 to drive the second encircling arm 603 to move, the reverse shifting handle 605 is fixed by the first encircling arm 602 and the second encircling arm 603 after being contacted with a metal part of a test cable, so that the metal part of the test cable is contacted with the first encircling arm 1 to realize electric conduction, and the metal parts of test cables with different diameters can be fixed, the application range is expanded.
The clamping device 6 comprises a supporting plate 606, a clamping handle 607, a pull rod 609 and a placing groove 613, wherein the supporting plate 606 and the placing groove 613 are both arranged on the inner side of a second vertical plate on the first pressing block 1, the supporting plate 606 is positioned on one side of the placing groove 613, the clamping handle 607 is rotatably arranged on the supporting plate 606 through a rotating shaft 608, a clamping tooth is arranged on one side of the clamping handle 607 close to the placing groove 613, the pull rod 609 is arranged on the end part of the clamping handle 607 far away from the placing groove 613, the end part of the pull rod 609 penetrates through the supporting plate 606 and is fixedly provided with a baffle 610, a second spring 611 is arranged on the outer side of the pull rod 609 and between the supporting plate 606 and the baffle 610, two ends of the second spring 611 are respectively arranged on the supporting plate 606 and the baffle 610, the pull rod 609 drives the clamping handle 607 to rotate along the supporting plate 606 through the rotating shaft 608 through, stop to exert external force to baffle 610, baffle 610 drives pull rod 609 and chucking handle 607 under the effect of second spring 611 and resets, fixes test cable metal part to standing groove 613 in through the latch on chucking handle 607, makes test cable metal part pass through the standing groove and contact with first pressure piece 1, thereby realizes electrically conductively, can fix test cable metal part fast, has improved the efficiency of work, pull ring 612 is installed to the outside of baffle 610, is convenient for exert external force and control baffle 610 through pull ring 612, is favorable to operating baffle 610, has improved the efficiency of work.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (8)
1. A special clamp for a mechanical characteristic test of a circuit breaker is characterized by comprising a first pressing block and a second pressing block, wherein the first pressing block and the second pressing block respectively comprise a first vertical plate, a second vertical plate and a transverse plate, the first vertical plate is arranged above one end of the transverse plate, the second vertical plate is arranged below the other end of the transverse plate, the transverse plate on the first pressing block is provided with a through groove, the second pressing block passes through the through groove and is arranged on the first pressing block, a first sleeve is arranged on the first pressing block at the inner side of the second vertical plate, a second sleeve is arranged on the second pressing block at the inner side of the second vertical plate, the second sleeve is positioned in the first sleeve, positioning rods are arranged on two sides of the end part of the second sleeve, sliding grooves are arranged on two sides of the first sleeve, the positioning rods are arranged in the sliding grooves, and first springs are arranged on the outer sides of the first sleeve and the second sleeve, two ends of the first spring are respectively installed on a second vertical plate on the first pressing block and the second pressing block, and a clamping device is further installed on the second vertical plate on the first pressing block.
2. The special clamp for testing the mechanical characteristics of the circuit breaker according to claim 1, wherein the clamping device is a ring-shaped arm, and the two ring-shaped arms are both installed inside the second vertical plate on the first pressing block.
3. The special clamp for the mechanical property test of the circuit breaker according to claim 1, wherein a protrusion is installed inside the first sleeve, and a groove matched with the protrusion is formed on the outer side of the second sleeve.
4. The clamp as claimed in claim 1, wherein the first riser of the first pressing block is arc-shaped.
5. The special clamp for the mechanical property test of the circuit breaker according to claim 1, wherein the first pressing block and the second pressing block are wrapped with an insulating layer.
6. The special clamp for the mechanical property test of the circuit breaker according to claim 1, wherein the clamping device comprises a supporting arm, a first encircling arm, a second encircling arm and a rectangular ring, the supporting arm is mounted on the inner side of a second vertical plate on the first pressing block, the first encircling arm and the second encircling arm are respectively rotatably mounted at two ends of the supporting arm, one end of the rectangular ring is rotatably mounted at the end of the first encircling arm, the end of the second encircling arm is rotatably mounted with a handle, and the other end of the rectangular ring is mounted on the handle.
7. The special clamp for the mechanical property test of the circuit breaker according to claim 1, wherein the clamping device comprises a supporting plate, a clamping handle, a pull rod and a placing groove, the supporting plate and the placing groove are both installed on the inner side of a second vertical plate on the first pressing block, the supporting plate is located on one side of the placing groove, the clamping handle is rotatably installed on the supporting plate through a rotating shaft, a clamping tooth is installed on one side, close to the placing groove, of the clamping handle, the pull rod is installed at the end portion of the clamping handle far away from the placing groove, the end portion of the pull rod penetrates through the supporting plate and is fixedly provided with a baffle plate, a second spring is arranged on the outer side of the pull rod, between the supporting plate and the baffle plate, and two ends of the second spring are respectively.
8. The special clamp for testing mechanical characteristics of circuit breakers according to claim 7, wherein a pull ring is installed on the outer side of said blocking plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011011196.6A CN112103674B (en) | 2020-09-23 | 2020-09-23 | Special clamp for mechanical characteristic test of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011011196.6A CN112103674B (en) | 2020-09-23 | 2020-09-23 | Special clamp for mechanical characteristic test of circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112103674A true CN112103674A (en) | 2020-12-18 |
| CN112103674B CN112103674B (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011011196.6A Active CN112103674B (en) | 2020-09-23 | 2020-09-23 | Special clamp for mechanical characteristic test of circuit breaker |
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| Country | Link |
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| CN (1) | CN112103674B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208125819U (en) * | 2018-03-20 | 2018-11-20 | 国网天津市电力公司电力科学研究院 | Handcart type breaker circuit resistance tester electricity consumption stream loop-around test pincers |
| CN208721716U (en) * | 2018-08-30 | 2019-04-09 | 河北道成电子科技有限公司 | Cell fixing device is used in a kind of detection of battery capacity |
| CN210465638U (en) * | 2019-06-10 | 2020-05-05 | 广州普庆电子科技有限公司 | Lithium battery cell self-discharge rate testing device with automatic comparison and inspection functions |
| CN210572670U (en) * | 2019-06-24 | 2020-05-19 | 上海艾能电力工程有限公司 | Distribution line electric leakage detection marking device |
| CN210572395U (en) * | 2019-07-23 | 2020-05-19 | 国网青海省电力公司检修公司 | Wiring clamp for mechanical characteristic test of circuit breaker |
| CN211554072U (en) * | 2019-12-12 | 2020-09-22 | 广东电网有限责任公司 | Special test wire |
-
2020
- 2020-09-23 CN CN202011011196.6A patent/CN112103674B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208125819U (en) * | 2018-03-20 | 2018-11-20 | 国网天津市电力公司电力科学研究院 | Handcart type breaker circuit resistance tester electricity consumption stream loop-around test pincers |
| CN208721716U (en) * | 2018-08-30 | 2019-04-09 | 河北道成电子科技有限公司 | Cell fixing device is used in a kind of detection of battery capacity |
| CN210465638U (en) * | 2019-06-10 | 2020-05-05 | 广州普庆电子科技有限公司 | Lithium battery cell self-discharge rate testing device with automatic comparison and inspection functions |
| CN210572670U (en) * | 2019-06-24 | 2020-05-19 | 上海艾能电力工程有限公司 | Distribution line electric leakage detection marking device |
| CN210572395U (en) * | 2019-07-23 | 2020-05-19 | 国网青海省电力公司检修公司 | Wiring clamp for mechanical characteristic test of circuit breaker |
| CN211554072U (en) * | 2019-12-12 | 2020-09-22 | 广东电网有限责任公司 | Special test wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112103674B (en) | 2022-05-03 |
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