CN110293511B - Moving arc contact loading and unloading tool - Google Patents
Moving arc contact loading and unloading tool Download PDFInfo
- Publication number
- CN110293511B CN110293511B CN201910517354.6A CN201910517354A CN110293511B CN 110293511 B CN110293511 B CN 110293511B CN 201910517354 A CN201910517354 A CN 201910517354A CN 110293511 B CN110293511 B CN 110293511B
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- sheath
- section
- shaft
- arc contact
- moving arc
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- 238000003780 insertion Methods 0.000 claims abstract description 46
- 230000037431 insertion Effects 0.000 claims abstract description 46
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 241000446313 Lamella Species 0.000 abstract description 3
- 239000007779 soft material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention relates to a moving arc contact assembling and disassembling tool. The moving arc contact assembling and disassembling tool comprises an inserting shaft, an elastic sleeve and a protective sleeve, wherein the inserting shaft is provided with an inserting section and an inserting shaft thread section, and a stop structure is arranged at the position of the inserting section, which is far away from the inserting shaft thread section; the elastic sleeve is sleeved outside the insertion section and is blocked at one side close to the threaded section; one end of the sheath is open, the other end of the sheath is provided with a bottom wall, the insertion shaft is threaded on the bottom wall, and the insertion section is positioned in the sheath; the opening of the sheath faces to one end where the stop structure is located, and an accommodating cavity for inserting the petal-shaped contact finger is formed between the sheath and the elastic sleeve; through making sheath and inserted shaft take place relative rotation, the elastic sleeve radially expands and cooperates with the sheath inner wall and presss from both sides tight lamella shape touching finger. In the process of assembling and disassembling the movable arc contact, only a screwing tool is needed to rotate the sheath or the inserting shaft, the operation is simple and convenient, and the elastic sleeve is made of soft material and the shape of the petal-shaped contact finger is fixed, so that great deformation cannot occur.
Description
Technical Field
The invention relates to a moving arc contact assembling and disassembling tool.
Background
The arc contact is a common part in a high-voltage switch, is made of arc-resistant materials, is mostly matched with a main contact for use, and bears the electrical abrasion of switching-on when the switch equipment is switched on; when the switch equipment is opened, the arc contact bears the strong arc when the circuit is disconnected, and the main contact is protected. The movable arc contact is integrally cylindrical, one end of the movable arc contact is provided with a connecting thread and is fixedly connected with the movable contact base through the connecting thread, and the other end of the movable arc contact is circumferentially provided with a plurality of axially extending split grooves which are divided into a plurality of petal-shaped contact fingers. Adopt traditional wrench or other instruments of twisting soon, because the structure of moving arc contact is comparatively special, the mounted position is comparatively special, and it is very inconvenient to operate, moreover because the lamella form feeler material is softer, improper operation still leads to lamella form feeler to warp even damage easily.
Disclosure of Invention
The invention aims to provide a moving arc contact assembling and disassembling tool, which solves the problems that in the prior art, when a common fastening tool is adopted to assemble and disassemble a moving arc contact, the assembling and disassembling are inconvenient, and the petal-shaped contact fingers of the moving arc contact are easy to deform.
In order to achieve the purpose, the technical scheme of the moving arc contact assembling and disassembling tool is as follows:
the moving arc contact assembling and disassembling tool comprises an inserting shaft, an elastic sleeve and a sheath, wherein the inserting shaft is provided with an inserting section and an inserting shaft thread section, the inserting section is provided with a stop structure at the position far away from the inserting shaft thread section, one end of the inserting shaft thread section far away from the inserting section is provided with an inserting shaft screwing structure, and the inserting shaft screwing structure is used for being matched with a corresponding tool to rotate the inserting shaft; the elastic sleeve is sleeved outside the insertion section, and the blocked structure is axially blocked at one side close to the threaded section along the insertion shaft; one end of the sheath is provided with an opening, the other end of the sheath is provided with a bottom wall, the insertion shaft is arranged on the bottom wall in a penetrating mode through threads, the insertion section is located in the sheath, and the sheath is provided with a sheath screwing structure which is used for being matched with a corresponding tool to rotate the sheath; the opening of the sheath faces to one end where the stop structure is located, and an accommodating cavity for inserting the petal-shaped contact finger is formed between the sheath and the elastic sleeve; when the petal-shaped contact fingers of the moving arc contact are inserted into the accommodating cavity, the blocking structure can extrude the elastic sleeve to expand radially and clamp the petal-shaped contact fingers in a matching manner with the inner wall of the sheath by enabling the sheath and the inserting shaft to rotate relatively.
The moving arc contact assembling and disassembling tool has the beneficial effects that: after the protective sleeve or the insertion shaft is rotated, the protective sleeve and the insertion shaft perform relative motion in the axial direction of the insertion shaft, when the stop structure on the insertion shaft is gradually close to the bottom wall of the protective sleeve, the elastic sleeve is stressed to expand and deform outwards, and finally the elastic sleeve and the inner wall surface of the protective sleeve clamp the petal-shaped contact finger together, so that the fixing of the loading and unloading tool and the moving arc contact is realized; when the stop structure is gradually far away from the thread section on the sheath, the elastic sleeve is restored, and the separation of the loading and unloading tool and the moving arc contact is realized. After the assembling and disassembling tool is fixed with the moving arc contact, the protective sleeve or the inserting shaft is rotated to enable the moving arc contact to rotate along with the whole assembling and disassembling tool, so that the assembling and disassembling of the moving arc contact are realized. In the process of assembling and disassembling the movable arc contact by using the assembling and disassembling tool, only a screwing tool is needed to rotate the sheath or the inserting shaft, the operation is simple and convenient, the petal-shaped contact fingers of the movable arc contact are driven to rotate by the friction force between the surfaces of the petal-shaped contact fingers after being clamped by the sheath and the elastic sleeve together, the elastic sleeve is soft in material, and the shape of the petal-shaped contact fingers is fixed, so that large deformation cannot occur.
Furthermore, a screwing section extends backwards from an opening, back to the sheath, in the bottom wall, the outer peripheral surface of the screwing section is a non-cylindrical outer peripheral surface to form the sheath screwing structure, and the insertion shaft is screwed in the screwing section. The screwing section is arranged in a protruding mode relative to the bottom and is far away from the moving arc contact, so that the screwing tool can be matched conveniently, the area of the outer peripheral surface of the extending section is large, and large torque can be borne after the extending section is matched with the screwing tool.
Furthermore, the peripheral surface of the screwing section is a hexagonal prism surface. The hexagonal prism surface can be screwed by a common internal hexagon or a spanner, other special tools do not need to be prepared, and the preparation work before assembly is simplified.
Furthermore, the stopping structure is a disc structure fixedly arranged at the end part of the insertion section far away from the threaded section of the insertion shaft. The disc structure is matched with the end face of the elastic sleeve, so that the elastic sleeve is stressed more uniformly and is not easy to damage, and the service life of the loading and unloading tool is prolonged.
Furthermore, the stop structure is a circular truncated cone structure fixedly arranged at the end part of the insertion section far away from the threaded section of the insertion shaft. The round platform structure is provided with a conical surface, so that the insertion shaft can be guided to be inserted into the moving arc contact, and the moving arc contact is prevented from being damaged due to collision when being forcibly inserted into the moving arc contact.
Further, the outer diameter of the disc structure is equal to that of the elastic sleeve. On the premise of ensuring that the outer diameter of the elastic sleeve is close to the inner diameter of the moving arc contact, the blocking area of the disc structure to the elastic sleeve is increased.
Furthermore, a cushion ring is sleeved on one end of the elastic sleeve, which is far away from the blocking structure, of the insertion shaft. The cushion ring is arranged to enable the expansion degree of the elastic sleeve to be closer to the stopping structure to the maximum extent, so that when the elastic sleeve presses the moving arc contact, the elastic sleeve can press the central position of the inner cavity of the moving arc contact, and the assembling and disassembling process is more stable.
Further, the outer diameter of the backing ring is equal to that of the elastic sleeve. Under the premise of stopping the elastic sleeve, the movable arc contact cannot be interfered to extend into the movable arc contact.
Further, the plug shaft screwing structure is a quadrangular prism structure arranged at the end part of the plug shaft. The quadrangular structure can be disassembled by a common inner square or a spanner without preparing other special tools, thereby simplifying the preparation work before assembly.
Furthermore, when the petal-shaped contact fingers are inserted into the accommodating cavity, the inner wall surface of the sheath is attached to the outer side surface of the petal-shaped contact fingers so as to radially stop the petal-shaped contact fingers. The inner wall surface of the sheath is attached to the outer side surface of the petal-shaped contact finger, so that the deformation of the petal-shaped contact finger can be reduced.
Drawings
FIG. 1 is a schematic view of the assembly of a moving arc contact handling tool and a moving arc contact in an embodiment of the moving arc contact handling tool of the present invention;
FIG. 2 is a schematic structural view of an insert shaft in an embodiment of the movable arc contact mounting and dismounting tool of the present invention;
FIG. 3 is a schematic cross-sectional view of an embodiment of a moving arc contact handling tool of the present invention;
description of reference numerals: 1-inserting a shaft; 11-disc structure; 12-an insertion section; 13-a threaded segment; 14-tetragonal structure; 2-a sheath; 21-a containing cavity; 22-a bottom wall; 23-screwing section; 3-moving arc contact; 31-petal shaped contact fingers; 4-an elastic sleeve; 5-backing ring.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In the specific embodiment of the moving arc contact assembling and disassembling tool, as shown in fig. 1-3, the moving arc contact assembling and disassembling tool comprises an insertion shaft 1, a protective sleeve 2 and an elastic sleeve 4, wherein the elastic sleeve 4 is sleeved on the insertion shaft 1, and the protective sleeve 2 is screwed on the insertion shaft 1 and sleeved on the outer side of the elastic sleeve 4. The elastic sleeve is a rubber sleeve in the embodiment, and in other embodiments, other elastic materials capable of deforming can be adopted.
As shown in fig. 2, the spindle 1 includes an insertion section 12 and a spindle thread section 13, and the major diameter of the thread at the spindle thread section 13 is equal to the diameter of the insertion section 12. The end, far away from the threaded section 13 of the insertion shaft, of the insertion section 12 is provided with a disc structure 11, the diameter of the disc structure 11 is equal to that of the elastic sleeve 4 in a relaxed state, and the end face, facing the elastic sleeve 4, of the disc structure 11 can block the elastic sleeve 4 along the axial direction of the insertion shaft, so that a blocking structure is formed. The end of the shaft thread section 13 remote from the insertion section 12 is provided with a tetragonal structure 14, i.e. a quadrangular prism structure, and the tetragonal structure 14 constitutes a shaft screwing structure for screwing the shaft 1. The projection of the square structure 14 in the axial direction of the plug shaft 1 is positioned in the projection of the plug shaft threaded section 13, so that the jacket 2 can be sleeved on the plug shaft 1 from the end where the square structure 14 is positioned. As another embodiment, one end of the insertion section, which is far away from the threaded section, may also be provided with a circular truncated cone structure, the circular truncated cone structure has a conical surface, and can guide the insertion shaft to be inserted into the moving arc contact, and an end surface of the circular truncated cone structure, which faces one side of the elastic sleeve, still blocks the elastic sleeve in the axial direction of the insertion shaft.
As shown in fig. 3, the sheath 2 is a cylindrical structure, one end of the sheath is an opening, the other end of the sheath has a bottom wall 22, a screwing section 23 extends backwards from the opening of the sheath 2 at the center of the bottom wall 22, the outer peripheral surface of the screwing section 23 is a hexagonal prism surface, the sheath 2 can be screwed by a common internal hexagonal tool or wrench, and the screwing section 23 constitutes a sheath screwing structure for screwing the sheath. The screwing section 23 is also provided with a threaded hole, the inserting shaft 1 is screwed together with the screwing section 23 of the sheath 2 through the inserting shaft threaded section 13, the opening of the sheath 2 faces one side of the disc structure 11, an accommodating cavity 21 for inserting the petal-shaped contact finger 31 is formed between the sheath 2 and the elastic sleeve 4, the inner diameter of the sheath 2 is close to the outer diameter of the movable arc contact 3, and the inner wall surface of the sheath 2 is attached to the outer side surface of the petal-shaped contact finger 31 when the petal-shaped contact finger 31 is inserted into the accommodating cavity 21 so as to reduce the deformation of the movable arc contact 3. In a preferred embodiment, the insert shaft 1 is further sleeved with a backing ring 5 at a position of the elastic sleeve 4 far away from the end of the disc structure 11, and the outer diameter of the backing ring 5 is equal to the outer diameter of the elastic sleeve 4. Of course, in other embodiments, the outer diameter of the backing ring may be larger than the outer diameter of the elastomeric sleeve.
When the flap-shaped contact fingers 31 of the movable arcing contact 3 are inserted into the accommodating cavity 21, the inserting shaft 1 or the sheath 2 is rotated, the disc structure 11 of the inserting shaft 1 gradually approaches to the bottom wall 22 of the sheath 2, the bottom wall 22 presses against the backing ring 5, so that the backing ring 5 and the disc structure 11 clamp the elastic sleeve 4 together, the elastic sleeve 4 gradually expands and deforms outwards in the radial direction, and the flap-shaped contact fingers 31 are clamped by matching with the inner wall of the sheath 2, so that the fixing of the assembling and disassembling tool and the movable arcing contact 3 is realized; after the inserting shaft 1 or the sheath 2 rotates reversely, the disc structure 11 is far away from the bottom wall 22 of the sheath 2, the elastic sleeve 4 gradually returns to a relaxed state, pressure is not applied to the petal-shaped contact finger 31, and the separation of the loading and unloading tool from the moving arc contact 3 is realized.
After the assembling and disassembling tool is fixed with the moving arc contact 3, the sheath 2 or the inserting shaft 1 is rotated to enable the moving arc contact 3 to rotate along with the whole assembling and disassembling tool, so that the assembling and disassembling of the moving arc contact 3 are realized. It should be noted, however, that the sheath 2 or the spindle 1 is now rotated in such a direction that the sheath 2 and the spindle 1 are now gripping the elastic sleeve 4. For example, in fig. 3, the mounting and dismounting tool is seen from top to bottom, the sheath 2 is fixed, after the insertion shaft 1 is rotated clockwise, the disc structure 11 and the bottom wall 22 can clamp the elastic sleeve 4 to expand the elastic sleeve 4, at this time, the insertion shaft 1 should be rotated clockwise to realize one of the mounting and dismounting processes of the mounting and dismounting tool on the moving arcing contact 3, at this time, the sheath 2 is rotated counterclockwise to realize the other one of the mounting and dismounting processes, and since the disc structure 11 and the bottom wall 22 clamp the elastic sleeve 4 by rotating the insertion shaft 1 clockwise and the sheath 2 counterclockwise, the clamping on the moving arcing contact 3 can be maintained constantly in the mounting and dismounting processes.
The movable arcing contact assembling and disassembling tool in the embodiment clamps the movable arcing contact 3 through the protective sleeve 2 and the elastic sleeve 4 together to fix the movable arcing contact 3, the petal-shaped contact fingers 31 have no deformation space, and the elastic sleeve 4 is made of softer material, so that the movable arcing contact 3 is assembled and disassembled through the assembling and disassembling tool to be less damaged and deformed to the movable arcing contact 3, and the service life of the movable arcing contact 3 is ensured. And only need to twist through common interior hexagonal or interior four directions or spanner and to realize whole operations at loading and unloading in-process, easy operation and preparation work less in earlier stage, it is very convenient to use.
In other embodiments, the screwing structure may be a slot formed in the bottom wall of the sheath, and the slot wall of the slot into which the screwing tool is inserted can be in stop fit with the screwing tool along the circumferential direction, so that the sheath can be rotated by rotating the screwing structure.
In other embodiments, the outer circumference of the screw segment may also be a quadrangular or elliptical surface, which, in cooperation with a corresponding screw tool, enables the sheath to be rotated.
In other embodiments, the stopping structure may also be a stopping protrusion disposed at an end of the insertion section away from the threaded section of the insertion shaft, and the stopping protrusion is disposed in a plurality of circumferential directions to stop the elastic sleeve.
In other embodiments, the plug shaft screw structure may also be a hexagonal prism structure disposed at the end of the plug shaft, or a radially extending through hole may be directly disposed at the end of the plug shaft, and the plug shaft may be rotated by inserting the plug rod.
Claims (10)
1. The utility model provides a moving arc contact loading and unloading frock, characterized by includes:
the inserting shaft is provided with an inserting section and an inserting shaft thread section, the inserting section is provided with a blocking structure at the position far away from the inserting shaft thread section, one end of the inserting shaft thread section far away from the inserting section is provided with an inserting shaft screwing structure, and the inserting shaft screwing structure is used for being matched with a corresponding tool to rotate the inserting shaft;
the elastic sleeve is sleeved outside the insertion section, and the blocked structure is axially blocked at one side close to the thread section along the insertion shaft;
the sheath is provided with an opening at one end and a bottom wall at the other end, the insertion shaft is arranged on the bottom wall in a penetrating mode through threads, the insertion section is located in the sheath, and the sheath is provided with a sheath screwing structure which is used for being matched with a corresponding tool to rotate the sheath;
the opening of the sheath faces to one end where the stop structure is located, and an accommodating cavity for inserting the petal-shaped contact finger is formed between the sheath and the elastic sleeve;
when the petal-shaped contact fingers of the moving arc contact are inserted into the accommodating cavity, the blocking structure can extrude the elastic sleeve to expand radially and clamp the petal-shaped contact fingers in a matching manner with the inner wall of the sheath by enabling the sheath and the inserting shaft to rotate relatively.
2. The moving arc contact mounting and dismounting tool according to claim 1, wherein a screw section extends backward from the opening of the bottom wall facing away from the sheath, the outer peripheral surface of the screw section is a non-cylindrical outer peripheral surface to form the sheath screw structure, and the insertion shaft is screwed in the screw section.
3. The moving arc contact mounting and dismounting tool set forth in claim 2, wherein the peripheral surface of the screw segment is a hexagonal prism surface.
4. The moving arc contact handling tool of claim 1, 2 or 3, wherein the stop structure is a disk structure fixed to the end of the insertion section remote from the threaded section of the insertion shaft.
5. The moving arc contact handling tool of claim 4 wherein the outer diameter of the disk structure is equal to the outer diameter of the elastomeric sleeve.
6. The moving arc contact handling tool of claim 1, 2 or 3, wherein the stop structure is a truncated cone structure fixedly disposed at an end of the insertion section remote from the threaded section of the insertion shaft.
7. The moving arc contact mounting and dismounting tool as claimed in claim 1, 2 or 3, wherein a backing ring is sleeved on the insertion shaft at one end of the elastic sleeve away from the stop structure.
8. The moving arc contact handling tool of claim 7 wherein the outside diameter of the backing ring is equal to the outside diameter of the elastomeric sleeve.
9. The moving arc contact assembling and disassembling tool according to claim 1, 2 or 3, wherein the plug shaft screwing structure is a quadrangular prism structure arranged at the end of the plug shaft.
10. The moving arc contact assembling and disassembling tool according to claim 1, 2 or 3, wherein when the petal-shaped contact fingers are inserted into the accommodating cavities, the inner wall surfaces of the sheaths are attached to the outer side surfaces of the petal-shaped contact fingers to radially stop the petal-shaped contact fingers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910517354.6A CN110293511B (en) | 2019-06-14 | 2019-06-14 | Moving arc contact loading and unloading tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910517354.6A CN110293511B (en) | 2019-06-14 | 2019-06-14 | Moving arc contact loading and unloading tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110293511A CN110293511A (en) | 2019-10-01 |
| CN110293511B true CN110293511B (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910517354.6A Active CN110293511B (en) | 2019-06-14 | 2019-06-14 | Moving arc contact loading and unloading tool |
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| CN (1) | CN110293511B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111141433B (en) * | 2019-12-19 | 2021-10-08 | 平高集团有限公司 | Clamping device for tension test of petal-shaped contact |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1325822C (en) * | 1989-04-06 | 1994-01-04 | Commander Electrical Equipment Inc. | Fuse ejector |
| FR2679375A1 (en) * | 1991-07-19 | 1993-01-22 | Alsthom Gec | CONTACTOR FOR CIRCUIT BREAKER. |
| JPH05225857A (en) * | 1992-02-12 | 1993-09-03 | Shinoo Service:Kk | Key remover tool |
| CN101752153B (en) * | 2009-11-30 | 2011-11-23 | 河南平高电气股份有限公司 | Dynamic arc contact, and installing method and special tool thereof |
| CN102306559B (en) * | 2011-09-02 | 2013-10-09 | 平高集团有限公司 | Movable and static contact connection assembly and high-voltage isolation grounding switch |
| CN203760883U (en) * | 2014-03-31 | 2014-08-06 | 国家电网公司 | Isolating switch moving contact disassembly tool |
| CN204303655U (en) * | 2014-12-22 | 2015-04-29 | 苏州施源特电气有限公司 | A kind of controlling organization of contact of breaker stroke |
| CN107791193A (en) * | 2017-10-22 | 2018-03-13 | 国网福建省电力有限公司 | A kind of breaker dynamic main contac construct for handling and its method of work |
| CN108422382B (en) * | 2018-05-08 | 2023-11-21 | 河南森源电气股份有限公司 | Breaker small nozzle fastening device |
| CN208614689U (en) * | 2018-05-08 | 2019-03-19 | 河南森源电气股份有限公司 | The small spout clamp device of breaker |
| CN208368380U (en) * | 2018-06-21 | 2019-01-11 | 乔淑霞 | A kind of Special spring for tulip contact replacement tool |
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