CN105513845B - A kind of earthing switch and its moving contact, moving conductive rod - Google Patents
A kind of earthing switch and its moving contact, moving conductive rod Download PDFInfo
- Publication number
- CN105513845B CN105513845B CN201510825748.XA CN201510825748A CN105513845B CN 105513845 B CN105513845 B CN 105513845B CN 201510825748 A CN201510825748 A CN 201510825748A CN 105513845 B CN105513845 B CN 105513845B
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- moving
- moving contact
- conductive rod
- hole
- tube
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- 230000007704 transition Effects 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000004323 axial length Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
Abstract
The present invention relates to a kind of earthing switch and its moving contacts, moving conductive rod, earthing switch includes moving conductive rod and the moving contact in tube-in-tube structure, the front end of moving conductive rod is equipped with stopping surface facing forward, the stopping surface is equipped with positioning convex platform, positioning convex platform is equipped with the axial screw mounting hole extended along the longitudinal direction, moving contact is equipped with the top pressure face coordinated with the stopping surface top pressure, tube-in-tube structure is internally provided with the location hole for the inserting that coincide with positioning convex platform, be coated with axial bolt moving contact being securely fitted on moving conductive rod in screw mounting hole, the front end aperture end face of location hole is the bolt-connection pressure-bearing surface that top pressure cooperation is supported with the axial bolt.The radial positioning to moving contact is realized by positioning convex platform and location hole cooperation, simultaneously, the axially position to moving contact is realized by stopping surface top pressure cooperation corresponding with top pressure face, and moving contact is securely fitted on moving conductive rod by axial bolt, moving conductive rod is simple with contact connection structure, and assembly is quick and convenient.
Description
Technical field
The present invention relates to a kind of earthing switch and its moving contact, moving conductive rods.
Background technology
In earthing switch, operating mechanism drives moving contact component action to realize itself and static contact component by being grounded knife bar
Break-make cooperation.Ground connection knife bar generally includes conducting rod and lower conducting rod, and moving contact component is generally fixed at conduction
At the respective end position of bar, convenient for static contact component is corresponding contacts conducting.
Existing earthing switch is as shown in Figure 1 to Figure 3, including moving conductive rod 10 and moving contact 20, moving conductive rod 10 include
Conductive bar body 11 and transition sleeve 12, endoporus of the corresponding identical inserting of transition sleeve 12 on the top of corresponding conductive bar body 11
In, and by way of being welded to connect together with 11 fixing assembling of conductive bar body.The corresponding identical grafting dress of moving contact 20
It fits in transition sleeve 12, and is corresponded on conductive bar body 11, transition sleeve 12 and moving contact 20 and open up 4 corresponding screws installations
Hole, screw mounting hole is the radially extending screw of radial direction along transition sleeve 12, to realize moving conductive rod 10 and moving contact
20 fixing assembling.
In existing earthing switch, conductive bar body, the fixing assembling of transition sleeve and moving contact are realized by radial screw,
Again due to conductive bar body and transition sleeve assemble welding, so needing to carry out drilling processing again after welding, machining difficulty is big,
And moving conductive rod and contact connection structure are complex, assembly is relatively complicated.
Invention content
The present invention provides a kind of earthing switch simple in structure, assembly is relatively simple, to solve moving contact in the prior art
It needs to be set in the transition sleeve of moving conductive rod and realizes that moving conductive rod causes with moving contact fixing assembling using radial screw
The complex technical problem of connection structure；Meanwhile the present invention also provides the moving contacts of earthing switch and the dynamic of earthing switch to lead
Electric pole.
The technical solution of earthing switch provided by the present invention is：A kind of earthing switch, including moving conductive rod and be in sleeve
The front end of the moving contact of structure, the moving conductive rod is equipped with stopping surface facing forward, which is equipped with positioning convex platform, positioning
Boss is equipped with the axial screw mounting hole extended along the longitudinal direction, and moving contact is equipped with the top coordinated with the stopping surface top pressure
Pressure surface, tube-in-tube structure are internally provided with the location hole for the inserting that coincide with positioning convex platform, are coated in screw mounting hole and consolidate moving contact
Surely the axial bolt being assemblied on moving conductive rod, the front end aperture end face of location hole are to support top pressure cooperation with the axial bolt
Bolt-connection pressure-bearing surface.
The endoporus of the moving contact in tube-in-tube structure is the stepped hole of ladder forward-facing, and the path section of stepped hole is described
Location hole, the cascaded surface of the stepped hole is the connection pressure-bearing surface, and the positioning convex platform is correspondingly arranged at described dynamic
The center position of the stopping surface of conducting rod.
The screw mounting hole is blind hole structure.
The moving conductive rod includes conductive bar body and the transit joint for being securely fitted in the conductive bar body front end,
The stopping surface is arranged in the front end of the transit joint.
There is the transit joint extension extended forward, the stopping surface to be arranged in the front end of the extension,
The peripheral surface alignment of the peripheral surface of the extension and the moving contact.
The conductive bar body is tubular structure, and the endoporus of the rear portion of transit joint and the tubular structure forms identical
The shaft hole matching structure of inserting, transit joint is by being arranged in the welding structure at conductive bar body front position and the conduction
Bar body fixing assembling is together.
The technical solution of the moving contact of earthing switch provided by the present invention is：A kind of moving contact of earthing switch is moved and is touched
Head is in the axial tube-in-tube structure extended along the longitudinal direction, and the moving contact in axial bolt equipped with backwards for dynamic will touch
Corresponding top pressure cooperation corresponding with the stopping surface that the moving conductive rod is equipped with when being fixedly connected on corresponding moving conductive rod
Top pressure face, tube-in-tube structure be internally provided with the positioning convex platform for being equipped with the moving conductive rod it is corresponding coincide inserting positioning
Hole, the front end aperture end face of location hole are the bolt-connection pressure-bearing surface for supporting top pressure cooperation with the axial bolt.
The endoporus of the moving contact in tube-in-tube structure is the stepped hole of ladder forward-facing, and the path section of stepped hole is described
Location hole, the cascaded surface of the stepped hole is the connection pressure-bearing surface.
Originally the technical solution of the moving conductive rod of earthing switch provided by the present invention is：A kind of moving conductive of earthing switch
The axial direction of bar, moving conductive rod extends along the longitudinal direction, and the front end of the moving conductive rod is equipped with facing forward be used in axial bolt
By moving contact is corresponding be fixedly connected on corresponding moving conductive rod when corresponding with the top pressure face that the moving contact is equipped with top pressure match
The stopping surface of conjunction, which is equipped with the positioning convex platform of the identical inserting of the location hole for being equipped with corresponding moving contact, fixed
Position boss is equipped with the axial screw mounting hole for installing the axial bolt extended along the longitudinal direction.
The moving conductive rod includes conductive bar body and the transit joint for being securely fitted in the conductive bar body front end,
The stopping surface is arranged in the front end of the transit joint.
The beneficial effects of the invention are as follows：In earthing switch provided by the present invention, pass through the positioning convex platform on moving conductive rod
Realized to the radial positioning of moving contact with the location hole positioning inserting on moving contact, meanwhile, by the stopping surface of moving conductive rod with
The axially position to moving contact is realized in the top pressure face top pressure cooperation of moving contact, and fixes moving contact by the way that axial bolt is corresponding
It is assemblied on moving conductive rod, moving conductive rod is relatively simple with contact connection structure, and assembly is quick and convenient.Also, location hole is set
It sets inside tube-in-tube structure, so, axial bolt is arranged in inside tube-in-tube structure, avoids axial bolt exposed and to outside
Electric field impacts.
Further, the endoporus of moving contact is the stepped hole of ladder forward-facing, and the path section of stepped hole is corresponding and positioning
The location hole of the identical inserting of boss, positioning convex platform are correspondingly arranged at the center position of the stopping surface of moving conductive rod, stepped hole
Cascaded surface carries out top pressure support as connection pressure-bearing surface to axial bolt so need not be in the endoporus of moving contact again
In addition location hole is processed, it is only necessary to utilize the endoporus of tube-in-tube structure itself.Also, it is touched to dynamic in the way of centralized positioning
Head carries out radial positioning, and location structure is relatively easy, and positioning accuracy is also relatively high.
Further, the screw mounting hole on moving conductive rod is blind hole structure, corresponding mounted on screw in axial bolt
When in mounting hole, axial bolt will not be exposed, avoids causing to interfere to external electrical field.
Further, moving conductive rod includes conductive bar body and transit joint, and stopping surface and positioning convex platform are arranged in transition
The front end of connector, so, it is only necessary to fabricate transit joint, you can be transformed on existing moving conductive rod, no
It can cause to waste.
Further, transit joint has extension, the peripheral surface of the extension and the peripheral surface alignment of moving contact,
Tip can be formed to avoid in the two transition position in this way.Also, the presence of extension can extend the length of moving conductive rod, this
Sample opposite can reduce the axial length of moving contact, and then substantially reduce the cost of moving contact.
Description of the drawings
Fig. 1 is the moving conductive rod and contact connection structure schematic diagram of existing earthing switch；
Fig. 2 is the structural schematic diagram of Fig. 1 moving conductive rods；
Fig. 3 is the structural schematic diagram of moving contact in Fig. 1；
Fig. 4 is a kind of partial structural diagram of embodiment of earthing switch provided by the present invention；
Fig. 5 is the structural schematic diagram of moving contact in Fig. 4；
Fig. 6 is the structural schematic diagram of transition structure in Fig. 4.
Specific implementation mode
As shown in Figures 4 to 6, a kind of embodiment of earthing switch, earthing switch in the embodiment in the prior art
The difference of earthing switch essentially consist in the connection structure of moving conductive rod and moving contact, remaining part structure with existing skill
The modular construction on earthing switch in art is identical, and details are not described herein.
The connection structure of moving conductive rod and moving contact in the present embodiment includes moving conductive rod and is touched in the dynamic of tube-in-tube structure
First 4, moving conductive rod includes conductive bar body 1 and is securely fitted in the transit joint 2 of 1 front end of conductive bar body, conductive plate ontology 1
For tubular structure, rear portion 24 and the 1 front end endoporus of conductive plate ontology of transit joint 2 form the shaft hole matching structure of identical inserting,
And transit joint 2 is securely fitted in one by being arranged in the welding structure at 1 front position of conductive bar body with conductive bar body 1
It rises.
There is transit joint 2 extension 20 extended forward, the front end of extension 20 to be equipped with stopping surface 21 facing forward, the gear
Only the center position in face 21 is equipped with positioning convex platform 22, and the axial spiral shell extended along the longitudinal direction is equipped on positioning convex platform 22
Follow closely mounting hole 23.
In the present embodiment, moving contact 4 by with 2 fixing assembling of transit joint to be mounted on moving conductive rod, specifically,
Moving contact 4 is equipped with the top pressure face 40 coordinated with 21 top pressure of stopping surface of 2 front end of transit joint, and the rear end face of moving contact is herein
For the top pressure face 40.Endoporus in the moving contact 4 of tube-in-tube structure is the stepped hole of ladder forward-facing, and stepped hole is small herein
Diameter section is corresponded to as location hole 41 coincide inserting with the positioning convex platform 22 on transit joint 2, in this way in location hole 41 and convex
When platform 22 corresponds to positioning inserting, the radial positioning to moving contact may be implemented.
Moving contact is securely fitted in transit joint 2 using the axial bolt 3 being installed in screw mounting hole 23 is corresponding
On.It is fixed to the axial direction of moving contact that 40 corresponding top pressure of top pressure face on moving contact 4 is realized on the stopping surface 21 of transit joint 2
Position, meanwhile, the front end aperture end face of location hole 41 is the bolt-connection pressure-bearing surface 42 that top pressure cooperation is supported with axial bolt 3.It is real
On border.In the present embodiment, the cascaded surface of the stepped hole of tube-in-tube structure is above-mentioned bolt-connection pressure-bearing surface.In assembly,
It is set with washer 5 in axial bolt 3, and penetrates axial bolt 3 is corresponding in screw mounting hole 23,5 top pressure of washer is in bolt
Couple on pressure-bearing surface 42, and then moving contact is securely fitted on transit joint 2.
In the present embodiment, the center position in the moving contact of tube-in-tube structure is arranged in location hole, and positioning convex platform is also corresponding
Center position in the stopping surface of transit joint is set.
In the present embodiment, location hole is located inside tube-in-tube structure, and axial bolt also is located at the interior of the moving contact of tube-in-tube structure
Portion avoids axial bolt is exposed from being interfered to external electrical field.Meanwhile in order to further avoid interfering external electrical field,
Screw mounting hole 23 on transit joint 2 is blind hole structure, in this way can be exposed to avoid axial bolt 3.Also, transit joint 2
On extension 20 peripheral surface and moving contact 4 peripheral surface alignment.
In the present embodiment, internal thread segment is equipped at the front end aperture of moving contact 4, spiral is equipped with abrasionproof in the internal thread segment
There is top pressure to be arranged in the abrasionproof baffle ring on the front end face of moving contact 4 for end 6, abrasionproof end 6, the outer side edges of abrasionproof baffle ring along with
The outer side edges of moving contact are along alignment, and the peripheral edge of the front end face of abrasionproof baffle ring is along equipped with rounded structure.
Moving conductive rod in the earthing switch that the present embodiment is provided, can be in advance in transit joint when being assembled with moving contact
Corresponding screw mounting hole is processed on 2, then the corresponding conductive bar body of transit joint 2 is installed and is welded as a whole, and then will
It is sleeved on transit joint 2 in the moving contact of tube-in-tube structure is corresponding, the top pressure face on moving contact 4 and the gear on transit joint 2
Only face top pressure coordinates, meanwhile, the positioning convex platform positioning inserting corresponding with the location hole on moving contact 4 on transit joint 2, to real
It is then that axial bolt 3 is corresponding inside tube-in-tube structure to penetrate screw peace now to the radial positioning of moving contact and axially position
It fills in hole, blend compounds are bonded bolt, ensure that fastening is reliable, easy for installation, and then moving contact is securely fitted on moving conductive rod.
Since axial bolt is arranged in inside tube-in-tube structure, external electrical field is not both interfered with, meanwhile, shape is also more beautiful, installation
It is more convenient.
In the present embodiment, the positioning convex platform of transit joint is located at center position, meanwhile, the path of the stepped hole of moving contact
Section is location hole, convenient for design processing and installation.In other embodiments, can also be arranged in annular in the rear end of moving contact
Flange, circular inner ledge are arranged in inside tube-in-tube structure, are evenly distributed at least at this point it is possible to be arranged on circular inner ledge
Two location holes equally may be implemented pair correspondingly, the positioning convex platform on transit joint will also be distributed along the circumference with two or more
Screw mounting hole is respectively set in the radial positioning of moving contact on each positioning convex platform, equally can conveniently realize dynamic touch
The fixing assembling of head and transit joint.
In the present embodiment, moving conductive rod includes conductive bar body and transit joint can also save in other embodiments
Transit joint, at this point, conductive bar body is equivalent to moving conductive rod, can in the corresponding setting stopping surface in conductive bar body front end and
The fixing assembling with moving contact equally may be implemented in positioning convex platform.
In the present embodiment, it is provided with extension on transit joint, the axial length of moving contact, section can be reduced relatively in this way
Material saving reduces cost.In other embodiments, if conducting rod body length is enough, transit joint can also be saved
On extension.
In the present embodiment, the screw mounting hole on transit joint is blind hole structure, in this way can be exposed to avoid axial bolt.
In other embodiments, if transit joint is axially shorter, because transit joint is set in the endoporus of conductive bar body,
Screw mounting hole may be through-hole structure, at this point, the tip of screw exposed extends into the endoporus of conductive bar body.
The present invention also provides a kind of embodiment of the moving contact of earthing switch, the structure of the moving contact in the embodiment with it is upper
The structure for stating the moving contact in earthing switch embodiment is identical, and details are not described herein.
The present invention also provides a kind of embodiment of the moving conductive rod of earthing switch, the structure of the moving conductive rod in the embodiment
Identical as the structure of moving conductive rod in above-mentioned earthing switch embodiment, details are not described herein.
Claims (6)
1. a kind of earthing switch, including moving conductive rod and the moving contact in tube-in-tube structure, it is characterised in that：The moving conductive rod
Front end be equipped with stopping surface facing forward, which is equipped with positioning convex platform, and positioning convex platform is equipped with axial to be prolonged along the longitudinal direction
The screw mounting hole stretched, moving contact are equipped with the top pressure face coordinated with the stopping surface top pressure, and tube-in-tube structure is internally provided with and determines
Position boss coincide the location hole of inserting, is coated with the axial screw being securely fitted in moving contact on moving conductive rod in screw mounting hole
The front end aperture end face of nail, location hole is the bolt-connection pressure-bearing surface that top pressure cooperation is supported with the axial bolt, described in set
The endoporus of the moving contact of barrel structure is the stepped hole of ladder forward-facing, and the path section of stepped hole is the location hole, the rank
The as described connection pressure-bearing surface of the cascaded surface in terraced hole, the positioning convex platform are correspondingly arranged at the stopping surface of the moving conductive rod
Center position；The head of the axial bolt is in the major diameter section of stepped hole.
2. earthing switch according to claim 1, it is characterised in that：The screw mounting hole is blind hole structure.
3. earthing switch according to claim 1 or 2, it is characterised in that：The moving conductive rod includes conductive bar body
With the transit joint for being securely fitted in the conductive bar body front end, the stopping surface is arranged in the front end of the transit joint.
4. earthing switch according to claim 3, it is characterised in that：The transit joint has the extension extended forward
Section, the stopping surface are arranged in the front end of the extension, the peripheral surface pair of the peripheral surface of the extension and the moving contact
Neat arrangement.
5. earthing switch according to claim 3, it is characterised in that：The conductive bar body is tubular structure, transition
The endoporus of the rear portion of connector and the tubular structure forms the shaft hole matching structure of identical inserting, and transit joint is led by being arranged in
Welding structure at electric pole ontology front position is securely fitted in together with the conductive bar body.
6. a kind of moving contact of earthing switch, moving contact is in the axial tube-in-tube structure extended along the longitudinal direction, it is characterised in that：Institute
The moving contact stated be equipped with backwards for axial bolt by moving contact it is corresponding be fixedly connected on corresponding moving conductive rod when
The top pressure face of top pressure cooperation corresponding with the stopping surface that the moving conductive rod is equipped with, tube-in-tube structure are internally provided with for being moved with described
Positioning convex platform that conducting rod is equipped with corresponds to the location hole for the inserting that coincide, the front end aperture end face of location hole be for the axis
The bolt-connection pressure-bearing surface coordinated to screw support top pressure, the endoporus in the moving contact of tube-in-tube structure are the ladder of ladder forward-facing
Hole, the path section of stepped hole are the location hole, and the cascaded surface of the stepped hole is the connection pressure-bearing surface；The rank
The major diameter section in terraced hole is used to accommodate the head of axial bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510825748.XA CN105513845B (en) | 2015-11-25 | 2015-11-25 | A kind of earthing switch and its moving contact, moving conductive rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510825748.XA CN105513845B (en) | 2015-11-25 | 2015-11-25 | A kind of earthing switch and its moving contact, moving conductive rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105513845A CN105513845A (en) | 2016-04-20 |
| CN105513845B true CN105513845B (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510825748.XA Active CN105513845B (en) | 2015-11-25 | 2015-11-25 | A kind of earthing switch and its moving contact, moving conductive rod |
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| Country | Link |
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| CN (1) | CN105513845B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783370B (en) * | 2016-12-16 | 2019-03-29 | 平高集团有限公司 | Arc extinguishing chamber contact, vacuum interrupter and pole |
| CN109637911A (en) * | 2019-01-18 | 2019-04-16 | 宁波鹿鼎电子科技有限公司 | A kind of attachment device and method of one or two fusions moving contact of breaker and conducting rod |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202120773U (en) * | 2011-05-26 | 2012-01-18 | 平高集团有限公司 | Insulation pull bar and connection structure employing the insulation pull bar |
| CN203673978U (en) * | 2014-01-17 | 2014-06-25 | 河南平高东芝高压开关有限公司 | GIS heavy-current contact structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19632574A1 (en) * | 1996-08-13 | 1998-02-19 | Abb Patent Gmbh | Disconnect earth switch for a metal-enclosed, gas-insulated high-voltage switchgear |
| CN202721035U (en) * | 2012-07-23 | 2013-02-06 | 江苏省如高高压电器有限公司 | Grounding switch conductor structure |
| CN203631405U (en) * | 2013-12-13 | 2014-06-04 | 中国西电集团公司 | Solid insulation direct acting earthing switch |
| CN204596649U (en) * | 2014-11-17 | 2015-08-26 | 平高集团有限公司 | A kind of movable contact of high-voltage switch mechanism and use the high-voltage switch gear of this mechanism |
-
2015
- 2015-11-25 CN CN201510825748.XA patent/CN105513845B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202120773U (en) * | 2011-05-26 | 2012-01-18 | 平高集团有限公司 | Insulation pull bar and connection structure employing the insulation pull bar |
| CN203673978U (en) * | 2014-01-17 | 2014-06-25 | 河南平高东芝高压开关有限公司 | GIS heavy-current contact structure |
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| Publication number | Publication date |
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| CN105513845A (en) | 2016-04-20 |
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