CN111834147B - Moving arc contact assembling and disassembling tool for circuit breaker - Google Patents
Moving arc contact assembling and disassembling tool for circuit breaker Download PDFInfo
- Publication number
- CN111834147B CN111834147B CN201910300703.9A CN201910300703A CN111834147B CN 111834147 B CN111834147 B CN 111834147B CN 201910300703 A CN201910300703 A CN 201910300703A CN 111834147 B CN111834147 B CN 111834147B
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- clamping
- arc contact
- circuit breaker
- moving arc
- operating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Abstract
The invention relates to a moving arc contact assembling and disassembling tool for a circuit breaker. Circuit breaker moves arc contact loading and unloading frock includes the operation panel, the carousel of operation panel for having fixed axis of rotation, one side of operation panel is wound the axis of rotation installs more than two card posts, each card post distribute with the axis of rotation is a circle of central line and assembles on the operation panel along this circular radial mobilizable direction through the slider that corresponds, all in deviating from on every card post one side of axis of rotation is equipped with card income structure, and card income structure is used for with the draw-in groove cooperation card on the moving arc contact go into wherein. Compared with the prior art, the movable arc contact assembling and disassembling tool for the circuit breaker can be suitable for assembling and disassembling movable arc contacts of different models, simplifies the operation process and improves the working efficiency.
Description
Technical Field
The invention relates to a moving arc contact assembling and disassembling tool for a circuit breaker.
Background
The moving arc contact of the circuit breaker plays a role of bearing short-circuit current when the circuit breaker breaks fault current, the assembly quality of the moving arc contact directly influences the breaking performance of the circuit breaker, and particularly, the contact finger at the top of the moving arc contact is required to be ensured not to deform. At present, the installation of the moving arc contact adopts a direct installation method, as shown in fig. 1 and fig. 2, the moving arc contact comprises a tubular contact body 1, a contact thread 4 for being fixedly connected with a moving contact is arranged on the outer surface of one end of the contact body 1, a convex stop block 3 is arranged on the contact body 1 at the root of the contact thread 4, a plurality of contact fingers 2 arranged around the axis of the contact body 1 are arranged on one side of the contact body 1, which is deviated from the stop block 3, of the contact thread 4, each contact finger 2 is distributed on a circle which takes the axis of the contact body 1 as the central line, and two adjacent contact fingers 2 are arranged at intervals to form a clamping groove.
Because the specifications of the moving arc contact are more, the existing dismounting tool of the moving arc contact is matched with the moving arc contact with a fixed model, and the universality is poor. When the movable arc contacts of a plurality of different models are disassembled and assembled, different disassembling tools need to be replaced, the operation is complex, and the assembling and disassembling efficiency is low.
Disclosure of Invention
The invention aims to provide a moving arc contact assembling and disassembling tool for a circuit breaker, which has strong universality and can adapt to moving arc contacts of different models, so as to solve the problems of complicated operation procedures and low assembling and disassembling efficiency in the prior art for assembling and disassembling the moving arc contacts of the circuit breaker.
In order to achieve the purpose, the technical scheme of the breaker moving arc contact assembling and disassembling tool is as follows:
circuit breaker moves arc contact loading and unloading frock and includes the operation panel, the carousel of operation panel for having fixed axis of rotation, one side of operation panel winds the axis of rotation installs two above card posts, each card post distribute with the axis of rotation is a circle of central line and assembles on the operation panel along this radial mobilizable direction of circle through the slider that corresponds, all in deviating from on every card post one side of axis of rotation is equipped with card income structure, and card income structure is used for wherein with the draw-in groove cooperation card income on the moving arc contact.
The beneficial effects are that: when the moving arc contact is disassembled and assembled by using the moving arc contact assembling and disassembling tool for the circuit breaker, the position of the clamping column on the operating disc is adjusted to enable the clamping plate or the clamping block to be correspondingly clamped with the clamping groove of the moving arc contact, and the moving arc contact can be disassembled and assembled by rotating the operating disc; for the movable arc contacts of different models, the movable arc contacts of different models can be adapted by adjusting the positions of the clamping columns on the operating panel. Compared with the prior art, the movable arc contact assembling and disassembling tool for the circuit breaker can be suitable for assembling and disassembling movable arc contacts of different models, simplifies the operation process and improves the working efficiency.
Furthermore, a synchronous driving mechanism for driving each clamping column to move towards the direction far away from the circle center of the circle is arranged on the operation panel. The synchronous driving mechanism can drive all the clamping columns to synchronously act, so that all the clamping columns are always positioned on a circle, and the clamping of the moving arc contact is facilitated.
Furthermore, the synchronous driving mechanism comprises a bevel gear and an input gear, the bevel gear is coaxially installed in the operating panel, the input gear is meshed with the bevel gear, planar threads are arranged on the end face of the input gear, slider threads matched with the planar threads on the input gear are arranged on the sliders, the sliders can be driven to be scattered or gathered by rotating the bevel gear in different directions, and operating ports corresponding to the bevel gear are formed in the peripheral surface of the operating panel. The input gear and the sliding block are correspondingly provided with adaptive plane threads, the position of the clamping column which is adjusted in place on the operating disk is kept fixed due to the self-locking function of the threads, and the synchronous driving mechanism is the same as that in the six-jaw chuck in the prior art.
Furthermore, the bevel gears are provided with a plurality of bevel gears, and the bevel gears correspond to the clamping columns one to one. Bevel gear has a plurality ofly and with the card post one-to-one set up help sliding at all direction control card post, be applicable to the narrow and small use occasion in space.
Furthermore, the number of the clamping columns is more than three. The fixing strength of the moving arc contact is enhanced by more than three clamping columns.
Further, the number of the clamping columns is six. On the premise of ensuring the sufficient fixed strength of the moving arc contact, the six clamping columns avoid the problem of high processing cost caused by excessive clamping columns.
Furthermore, the clamping structure is a clamping plate or a clamping block, and the clamping structure is simple to arrange.
Furthermore, a clamping groove is formed in the clamping column, and the clamping plate or the clamping block is assembled in the corresponding clamping groove in an interference mode. Cardboard or fixture block interference fit have strengthened cardboard or fixture block fixed strength on the card post.
Furthermore, one side of the operating panel, which is far away from the clamping column, is provided with a screwing head used for being matched with a screwing tool, and the central line of the screwing head is superposed with the rotating axis. The operation panel is provided with a wrenching head which is helpful for rotating the operation panel by using a tool.
Drawings
FIG. 1 is a schematic structural view of a moving arc contact in the prior art;
FIG. 2 is a right side view of the moving arc contact of FIG. 1;
FIG. 3 is a schematic structural view of a moving arc contact mounting and dismounting tool for a circuit breaker according to the present invention;
FIG. 4 is a cross-sectional view of the moving arc contact mounting and dismounting tool of the circuit breaker in FIG. 3;
FIG. 5 is a schematic view of the assembled structure of the clamping post, clamping plate and sliding block of FIG. 3;
in the figure: 1-a contact body; 2-a contact finger; 3, a stop block; 4-contact threads; 5-operating panel; 51-a chute; 52-an operation port; 6-clamping the column; 7-clamping plate; 8-a slide block; 81-first planar threads; 9-pulling and twisting the head; 10-bevel gears; 11-input gear; 111-second planar thread.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 3, the first specific embodiment of the tooling for assembling and disassembling the moving arc contact of the circuit breaker of the present invention includes an operation panel 5, the operation panel 5 is a columnar turntable with a fixed rotation axis, a sliding slot 51 is formed on the upper surface of the operation panel 5, a strip-shaped hole extending along the width direction of the sliding slot 51 is formed at the bottom of the sliding slot 51, and the two side slot edges of the upper part of the sliding slot 51 are lower than the upper surface of the operation panel 5, so that the cross section of the sliding slot 51 is in an "i" shape. The length direction of the sliding grooves 51 extends along the radial direction of the operating panel 5, the number of the sliding grooves 51 is six corresponding to the number of the clamping grooves on the moving arc contact, and the six sliding grooves 51 are uniformly distributed at intervals in the circumferential direction of the operating panel 5. Of course, in other embodiments, the number of chutes may be three, four, five, etc. The sliding block is arranged in each sliding groove in an I-shaped mode in a guiding mode, the upper side face of each sliding block is fixedly connected with clamping columns extending upwards, and the fixed positions of the six clamping columns on the sliding blocks meet the requirement that the six clamping columns are distributed on a circle with the rotating axis of the operating panel as the center line.
As shown in fig. 5, one side of the clamping column 6 departing from the rotation axis of the operating panel 5 is provided with a clamping plate 7, the distance between two adjacent clamping plates 7 is equal to the distance between the clamping grooves of two adjacent moving arc contacts, and each clamping plate 7 can be correspondingly clamped into the clamping groove of the moving arc contact. The snap-in plate 7 is a snap-in structure. In other embodiments, when the number of the sliding grooves is three, four, five, etc., it is required to ensure that the sliding grooves arranged on the sliding block can also be clamped into the clamping grooves of the moving arc contact. In order to enhance the fixing strength of the clamping plate 7 on the clamping column 6, a clamping groove is formed in the clamping column 6, and the clamping plate 7 is assembled in the clamping groove in an interference fit mode. In other embodiments, the clamping plate can be fixed on the clamping column in other modes such as welding, bonding and the like.
As shown in fig. 4, the operation panel 5 has a cavity therein, and a synchronous driving mechanism for driving each of the clamping columns 6 to move in a direction away from the center of the operation panel 5 is disposed in the cavity. As shown in fig. 4, the synchronous drive mechanism includes an input gear 11 disposed in the accommodating chamber, the input gear 11 has a cylindrical structure, the input gear 11 has a second planar thread 111 on an upper surface thereof, and has a tapered tooth on a lower surface thereof. The peripheral surface of the operation panel 5 is provided with six operation ports 52 communicated with the accommodating cavity, the operation ports 52 correspond to the clamping columns 6 one by one, bevel gears 10 are arranged in the operation ports 52, the bevel gears 10 are positioned on the lower side of the input gear 11, the bevel gears 10 are meshed with the bevel teeth of the input gear 11, and the input gear 11 can be driven to rotate when the bevel gears 10 rotate.
The lower part of each sliding block 8 is provided with a first plane thread 81 matched with a second plane thread 111 of the input gear 11, and the sliding blocks 8 and the input gear 11 perform sliding screw transmission through the corresponding plane threads. When the bevel gear 10 is rotated forward and backward, the bevel gear 10 can drive the input gear 11 to rotate, and the input gear 11 drives each of the clamping columns 6 to slide back and forth along the sliding groove 51, so as to realize the unfolding and folding of each of the clamping columns 6.
Referring to fig. 3, a wrenching head 9 for engaging with a wrenching tool is provided on the lower side of the operating panel 5, and the center line of the wrenching head 9 coincides with the rotation axis of the operating panel 5. In this embodiment, the wrench head 9 is a hexagonal column structure, and can be matched with a hexagonal wrench to drive the operation panel 5 to rotate. In other embodiments, the wrenching head may also be a hexagonal hole provided in the underside of the operating panel.
When the assembling and disassembling tool for the moving arc contact of the circuit breaker is used, the moving arc contact is placed on the operating disc 5 in each clamping column 6, the bevel gear 10 is rotated through a tool to drive the input gear 11 to rotate, the input gear 11 drives the sliding block 8 to slide towards the direction close to the center of the operating disc 5 until the clamping plates 7 on each clamping column 6 are clamped into the clamping grooves of the moving arc contact, and the bevel gear 10 stops rotating; then, the operation panel 5 is rotated by using a wrenching tool adapted to the wrenching head 9, thereby completing the disassembly and assembly of the moving arc contact. When the model of the next movable arc contact to be disassembled is different from the model of the previous movable arc contact, the position of the clamping column 6 on the operating panel 5 can be adjusted, so that the movable arc contact assembling and disassembling tool of the circuit breaker is suitable for the movable arc contact of the model.
The second specific embodiment of the tooling for assembling and disassembling the moving arcing contact of the circuit breaker of the invention is different from the first specific embodiment of the tooling for assembling and disassembling the moving arcing contact of the circuit breaker in that the operating panel in the embodiment is a rectangular panel with a determined rotation axis, and in other embodiments, the operating panel can also be an operating panel with other shapes such as a triangular panel. Compared with the first embodiment, the rectangular operating panel in the first embodiment is convenient to process, but has the problem of raw material waste.
The third specific embodiment of the moving arc contact assembling and disassembling tool for the circuit breaker is different from the first specific embodiment of the moving arc contact assembling and disassembling tool for the circuit breaker in that the synchronous driving mechanism in the implementation comprises a push shaft with a conical head, the push shaft is in threaded connection with an operating disk, when the push shaft rotates, the conical head pushes a sliding block to enable the sliding block to move in the direction away from the center of the operating disk, and at the moment, a return spring fixedly connected with the sliding block is fixedly connected to the operating disk, so that when the position of a clamping column needs to be adjusted inwards, the return spring pulls the sliding block to slide towards the center of the operating disk.
The fourth specific embodiment of the tooling for assembling and disassembling the moving arc contact of the circuit breaker is different from the first specific embodiment of the tooling for assembling and disassembling the moving arc contact of the circuit breaker in that a handle replacing a wrenching head is arranged on the lower side of the operating panel of the embodiment, and the handle is rotated to drive the operating panel to rotate. In other embodiments, the operation panel may also be circumferentially provided with a force applying rod mounting hole, and the force applying rod is rotated to drive the operation panel to rotate.
The fifth specific embodiment of the tool for assembling and disassembling the moving arc contact of the circuit breaker is different from the first specific embodiment of the tool for assembling and disassembling the moving arc contact of the circuit breaker in that a clamping block is fixedly installed on a clamping column in the fifth specific embodiment, and the clamping block is pressed against a contact finger of the moving arc contact through the clamping block.
Claims (7)
1. The assembling and disassembling tool for the moving arc contact of the circuit breaker is characterized by comprising an operating disc, wherein the operating disc is a turntable with a fixed rotating axis, more than two clamping columns are arranged on one side of the operating disc around the rotating axis, each clamping column is distributed on a circle with the rotating axis as a central line and assembled on the operating disc through a corresponding sliding block in a guide manner of being movable along the circle in the radial direction, a clamping structure is arranged on one side, deviating from the rotating axis, of each clamping column, and the clamping structures are matched with clamping grooves in the moving arc contact and clamped into the clamping grooves;
the operation panel is provided with a synchronous driving mechanism for driving each clamping column to move towards the direction far away from the circle center of the circle;
the synchronous driving mechanism comprises a bevel gear and an input gear, the bevel gear is coaxially installed in the operating panel, the input gear is meshed with the bevel gear, planar threads are arranged on the end face of the input gear, slider threads matched with the planar threads on the input gear are arranged on the sliders, the sliders are driven to be scattered or gathered by rotating the bevel gear in different directions, and operating ports corresponding to the bevel gear are arranged on the peripheral face of the operating panel.
2. The circuit breaker moving arc contact handling frock of claim 1 characterized in that: the bevel gears are provided with a plurality of bevel gears, and the bevel gears correspond to the clamping columns one to one.
3. The circuit breaker moving arc contact handling frock of claim 1 or 2, characterized in that: the number of the clamping columns is more than three.
4. The circuit breaker moving arc contact loading and unloading frock of claim 3, characterized in that: the number of the clamping columns is six.
5. The circuit breaker moving arc contact handling frock of claim 1 or 2, characterized in that: the clamping structure is a clamping plate or a clamping block.
6. The circuit breaker moving arc contact handling frock of claim 5, characterized in that: the clamping columns are provided with clamping grooves, and the clamping plates or the clamping blocks are assembled in the corresponding clamping grooves in an interference fit mode.
7. The circuit breaker moving arc contact handling frock of claim 1 or 2, characterized in that: and a pulling and twisting head matched with a pulling and twisting tool is arranged on one side of the operating disc, which is far away from the clamping column, and the central line of the pulling and twisting head is superposed with the rotating axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910300703.9A CN111834147B (en) | 2019-04-15 | 2019-04-15 | Moving arc contact assembling and disassembling tool for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910300703.9A CN111834147B (en) | 2019-04-15 | 2019-04-15 | Moving arc contact assembling and disassembling tool for circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111834147A CN111834147A (en) | 2020-10-27 |
| CN111834147B true CN111834147B (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910300703.9A Active CN111834147B (en) | 2019-04-15 | 2019-04-15 | Moving arc contact assembling and disassembling tool for circuit breaker |
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| CN (1) | CN111834147B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112735898B (en) * | 2020-12-01 | 2023-09-29 | 平高集团有限公司 | Arc contact and circuit breaker |
| CN114274096A (en) * | 2021-11-29 | 2022-04-05 | 河南平高电气股份有限公司 | Arc contact mounting tool for arc extinguishing chamber |
| CN114400170B (en) * | 2021-12-14 | 2024-03-22 | 河南平高电气股份有限公司 | Arc contact screwing spanner head of circuit breaker |
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| JPS5744920A (en) * | 1980-09-01 | 1982-03-13 | Hitachi Ltd | Method of mounting contact of contactor |
| DE8808706U1 (en) * | 1988-07-07 | 1988-09-15 | Wks Werkzeugfabrik Karl Scharfenberg Gmbh & Co Kg, 3570 Stadtallendorf, De | |
| CN101996792A (en) * | 2009-08-06 | 2011-03-30 | 株式会社牧田 | Switch |
| CN202120831U (en) * | 2011-05-30 | 2012-01-18 | 山东泰开高压开关有限公司 | High voltage breaker contact assembling tool |
| CN205230885U (en) * | 2015-11-19 | 2016-05-11 | 国家电网公司 | Put plum blossom contact dismouting device of formula switch in transformer substation |
| CN106876212A (en) * | 2017-03-08 | 2017-06-20 | 厦门理工学院 | A kind of mounting structure of VD4 vacuum circuit breakers contact arm and contact |
| CN107591265A (en) * | 2017-10-19 | 2018-01-16 | 广东电网有限责任公司佛山供电局 | A kind of handling instrument of Mume flower contact spring |
| CN207459520U (en) * | 2017-09-19 | 2018-06-05 | 广东电网有限责任公司江门供电局 | A kind of tool specially for attaching and detaching of 10kV car switches Mume flower contact spring |
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2019
- 2019-04-15 CN CN201910300703.9A patent/CN111834147B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5744920A (en) * | 1980-09-01 | 1982-03-13 | Hitachi Ltd | Method of mounting contact of contactor |
| DE8808706U1 (en) * | 1988-07-07 | 1988-09-15 | Wks Werkzeugfabrik Karl Scharfenberg Gmbh & Co Kg, 3570 Stadtallendorf, De | |
| CN101996792A (en) * | 2009-08-06 | 2011-03-30 | 株式会社牧田 | Switch |
| CN202120831U (en) * | 2011-05-30 | 2012-01-18 | 山东泰开高压开关有限公司 | High voltage breaker contact assembling tool |
| CN205230885U (en) * | 2015-11-19 | 2016-05-11 | 国家电网公司 | Put plum blossom contact dismouting device of formula switch in transformer substation |
| CN106876212A (en) * | 2017-03-08 | 2017-06-20 | 厦门理工学院 | A kind of mounting structure of VD4 vacuum circuit breakers contact arm and contact |
| CN207459520U (en) * | 2017-09-19 | 2018-06-05 | 广东电网有限责任公司江门供电局 | A kind of tool specially for attaching and detaching of 10kV car switches Mume flower contact spring |
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| CN111834147A (en) | 2020-10-27 |
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