CN201478135U - Conductive bearing of high-voltage disconnecting switch - Google Patents
Conductive bearing of high-voltage disconnecting switch Download PDFInfo
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- CN201478135U CN201478135U CN2009201393835U CN200920139383U CN201478135U CN 201478135 U CN201478135 U CN 201478135U CN 2009201393835 U CN2009201393835 U CN 2009201393835U CN 200920139383 U CN200920139383 U CN 200920139383U CN 201478135 U CN201478135 U CN 201478135U
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Abstract
The utility model provides a conductive bearing of a high-voltage disconnecting switch, which comprises a conductive outer ring, a conductive inner ring and a bearing cover, wherein the conductive inner ring is a conductive arm which is coaxially matched with the conductive outer ring, a spring and rolling ball contact fingers are arranged between the conductive arm and a bearing base, the spring and the rolling ball contact fingers are positioned between two annular bosses, the rolling ball contact fingers are distributed on two sides of the spring along the circumference of the conductive arm, the rolling ball contact finger on one side is in contact with a conical surface on a shaft hole of the bearing base, and the rolling ball contact finger on the other side is in contact with the annular boss which is near to the bearing cover. The structure of the conductive bearing of the high-voltage disconnecting switch is characterized by adopting a transmission system which uses a bearing for conduction and movement and using the rolling ball contact fingers for conduction and relative movement, thereby realizing the good stability of actions of a product and having excellent movement transfer function and conductive function; in addition, the contact resistance is small, which can be just within a plurality of micro-ohms, and the conductive bearing can not only be used for a large-current disconnecting switch product, but also be applicable to outdoor environment and applied in a variety of high-voltage disconnecting switch products.
Description
Technical field
The utility model relates to a kind of conductive bearing, relates in particular to a kind of conductive bearing that outdoor superhigh pressure isolating switch is used that is used for.
Background technology
High voltage isolator is to be used for deciliter voltage being arranged and zero load circuit in the electric power system, and the switchgear of insulating power supply can pass through normal load current and short-circuit current for a long time during combined floodgate, tangible cut-off point is arranged during separating brake, easy access and protection.High voltage isolator has isolating switches such as collapsible, horizontal rotation type and vertical opening type according to the characteristics of motion.Wherein folding isolating switch, the jackknife action when moving by conducting rod can reduce this overall dimension when sub-gate position is put, and reaches the little purpose that takes up room.Between isolating switch conducting rod and conducting rod, all can need so a kind of can move simultaneously can also be through-flow structure, and under condition of high voltage, still need in the rotary course to carry out stable power supply.Adopt the form of conductive strips and mechanical transmission structure many traditionally, it has simple in structure, reliable characteristics.But because overall dimension is big, the conductive strips long term exposure also has himself shortcoming in atmospheric environment, such as not attractive in appearance and antiseptic property difference etc., and along with its conductivity of long-term use easily reduces, the influence circulation.
Be used for outdoor superhigh pressure isolating switch, particularly at the superhigh pressure isolating switch of big electric current, consume in order to reduce as far as possible, should make the contact resistance of arrangements of electric connection the smaller the better, it requires the contact resistance value of conductive bearing should be in several micro-ohms, under the swing situation, still can contact simultaneously well, rotate flexibly.
The conductive connecting device of existing a kind of high voltage isolator, its conductive component is fixedlyed connected with axle bed, axle sleeve earlier, between axle bed and axle sleeve, be provided with the ball fingertip of bearing and individual pen, this ball fingertip realizes that with axle bed, axle sleeve conduction is connected, can have the good conductive function, but this device contact resistance value is bigger, can not bear the collapsible high voltage isolator product of super-large current (more than the 3000A), and structure is comparatively complicated.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of have good Motion Transmission function and conducting function, contact resistance is littler, simple in structure, rotate flexibly, the conductive bearing that can adapt to outdoor environment can apply to the high voltage isolator product of various super-large currents (more than the 3000A).
The technical solution adopted in the utility model is: a kind of conductive bearing of high voltage isolator, comprise conduction outer ring, conduction inner ring, bearing cap, described conduction outer ring is a bearing base, one end of its axis hole is connected with conduction inner ring coaxial cooperation, the diameter of axle of this axis hole cooperates with the external diameter of conduction inner ring, the other end and the bearing cap of bearing base axis hole are fixedly linked, and also are provided with all taper seats on the bearing base axis hole, and this taper seat contacts with the ball fingertip and limits moving of ball fingertip; Described conduction inner ring is a conductive arm, the one end stretches in the conduction outer ring and conduction outer ring coaxial cooperation, and be positioned to conduct electricity in the outer ring by an annular boss, also be provided with another annular boss on the conductive arm, between conductive arm and bearing base, be provided with spring and ball fingertip, described spring and ball fingertip are between described two annular boss, the ball fingertip is distributed in the spring both sides along conductive arm week, the ball fingertip of one side contacts with taper seat on the bearing base axis hole, and the ball fingertip of opposite side contacts with annular boss near bearing cap; Bearing cap is fixedly linked with the conduction outer ring, and its inner face contacts with the conduction inner ring.
Further, described conductive arm is loaded in the described bearing base by a copper bush supporting, and conductive arm and bearing base coaxial cooperation place are provided with O-ring seal, and making whole conductive bearing is hermetically-sealed construction, can be used for outdoor disconnector.Further, described conductive arm is a cylindrical conductive output shaft, perhaps, is the conduction output shaft of one " L " shape, and described conductive arm can be provided with annular arc groove with ball fingertip contact position.
Further, be marked with conductive grease around described spring and the ball fingertip, and be equipped with the copper back-up ring between the ball fingertip of spring and both sides.
Further, described bearing cap and bearing base are fixedly linked by threaded engagement, and the bearing cap outer face is provided with the blind hole of two symmetries, use when being convenient to assemble with bearing base.
Further, also be provided with several bolts hole on the described bearing base, be used for being connected to a fixed with external member.
It is the drive system of conduction and motion that the conductive bearing of the disclosed a kind of high voltage isolator of the utility model adopts with the bearing, with the ball fingertip is conduction and the design feature that has relative motion concurrently, make the product action stability good, have good Motion Transmission function and conducting function.The contact resistance value of the conductive bearing of this structure is little, can in several micro-ohms, be used for super-large current (more than the 3000A) isolating switch product, also can adapt to outdoor environment, can be applied to the high voltage isolator that various high voltage isolator products, particularly hundreds of thousands lie prostrate big electric current.
Description of drawings
Fig. 1 is the cross-sectional view of the utility model most preferred embodiment;
Fig. 2 is the right view of the utility model most preferred embodiment.
Embodiment
Existing accompanying drawings and embodiment further specify the utility model.
Most preferred embodiment: as shown in Figure 1, the conductive bearing of the high voltage isolator in the present embodiment comprises conduction outer ring, conduction inner ring, bearing cap 8, wherein,
The conduction outer ring is a bearing base 6, one end of its axis hole is connected with conduction inner ring coaxial cooperation, the diameter of axle of this axis hole cooperates with the external diameter of conduction inner ring, the other end and the bearing cap 8 of bearing base 6 axis holes are fixedly linked, also be provided with all taper seats 601 on bearing base 6 axis holes, this taper seat 601 contacts with ball fingertip 3 and limits moving of ball fingertip 3;
The conduction inner ring is a conductive arm 1, the one end stretches in the bearing base 6 and bearing base 6 coaxial cooperation, and be positioned in the bearing base 6 by an annular boss 101, also be provided with another annular boss 102 on the conductive arm 1, between conductive arm 1 and bearing base 6, be provided with spring 4 and ball fingertip 3, described spring 4 and ball fingertip 3 are positioned at described two annular boss 101, between 102, ball fingertip 3 is made up of 30 silver-plated copper balls, 15 one group is distributed in spring 4 both sides along 1 week of conductive arm, the ball fingertip 3 of one side contacts with taper seat 601 on bearing base 6 axis holes, and the ball fingertip 3 of opposite side contacts with annular boss 102 near bearing cap 8; Described spring 4 is stage clips, is placed in conductive arm 1 outside, and the pressure that its compression back produces can reach 120N, makes ball fingertip one side press the annular boss of close bearing cap 8 on the conductive arm 1, and opposite side presses the taper seat 601 in the bearing base 6;
Bearing cap 8 is fixedly linked with the conduction outer ring, and its inner face contacts with the conduction inner ring.
Further, described conductive arm 1 is a cylindrical conductive output shaft, is loaded in the described bearing base 6 by 7 supportings of a copper bush, and conductive arm 1 is provided with O-ring seal 2 with bearing base 6 coaxial cooperation places, make that whole conductive bearing is the structure of sealing, is suitable for outdoor disconnector.
Further, be marked with conductive grease around described spring 4 and the ball fingertip 3, make between ball fingertip 3 and bearing base 6, the conductive arm 1 to contact well.
Further, be equipped with copper back-up ring 5 between the ball fingertip 3 of described spring 4 and both sides.
Further, described bearing cap 8 and bearing base 6 are fixedly linked by threaded engagement, and constituting the bearing arrangement of the no retainer of sealing again with conductive arm 1, bearing cap 8 outer faces are provided with the blind hole 801 of two symmetries, use when being convenient to bearing base 6 assemblings.
Further, also be provided with several bolts hole 602 on the described bearing base 6, be used for being connected to a fixed with external member.
Such structure can make the resistance value between the conductive arm 1 of bearing base 6 and bearing inner race can reach in several micro-ohms, be applicable to the isolating switch of bigger electric current (more than the 3000A), simultaneously, the pressure that spring 4 produces acts on conductive bearing inside, be the structure of normal pressure, make that conductive bearing also can excellent contact under the operating state of rotating.
In order more clearly to represent structure of the present utility model, Fig. 2 is the right view of the utility model most preferred embodiment.
Further, the taper seat 601 on described bearing base 6 axis holes can be an arc surface.
Further, a kind of expansion structure of the present utility model, described conductive arm 1 are the conduction output shafts of one " L " shape.At this moment, if the load loading end and the bearing base 6 of conductive arm 1 are in non-coaxial state, should match the size of suitable conductive arm 1 according to the torsional moment that should bear mutually.
Another kind of expansion structure of the present utility model can be, and described conductive arm 1 makes ball fingertip 3 be positioned at annular arc groove with ball fingertip 3 contact positions annular arc groove being set, and increases contact area, makes that the contact resistance resistance is littler.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.
Claims (10)
1. the conductive bearing of a high voltage isolator comprises conduction outer ring, conduction inner ring, bearing cap (8), it is characterized in that,
Described conduction outer ring is a bearing base (6), one end of its axis hole is connected with conduction inner ring coaxial cooperation, the diameter of axle of this axis hole cooperates with the external diameter of conduction inner ring, the other end and the bearing cap (8) of bearing base (6) axis hole are fixedly linked, also be provided with all taper seats (601) on bearing base (6) axis hole, this taper seat (601) contacts with ball fingertip (3) and limits moving of ball fingertip (3);
Described conduction inner ring is a conductive arm (1), the one end stretches in the conduction outer ring and conduction outer ring coaxial cooperation, and be positioned to conduct electricity in the outer ring by an annular boss (101), also be provided with another annular boss (102) on the conductive arm (1), between conductive arm (1) and bearing base (6), be provided with spring (4) and ball fingertip (3), described spring (4) and ball fingertip (3) are positioned at described two annular boss (101,102) between, ball fingertip (3) is along being distributed in spring (4) both sides conductive arm (1) week, the ball fingertip (3) of one side contacts with taper seat (601) on bearing base (6) axis hole, and the ball fingertip (3) of opposite side contacts with annular boss (102) near bearing cap (8);
Bearing cap (8) is fixedly linked with the conduction outer ring, and its inner face contacts with the conduction inner ring.
2. the conductive bearing of high voltage isolator according to claim 1 is characterized in that, described conductive arm (1) is loaded in the described bearing base (6) by a copper bush (7) supporting.
3. the conductive bearing of high voltage isolator according to claim 1 is characterized in that, described conductive arm (1) is provided with O-ring seal (2) with bearing base (6) coaxial cooperation place.
4. according to the conductive bearing of claim 1 or 2 or 3 described high voltage isolators, it is characterized in that described conductive arm (1) is a cylindrical conductive output shaft.
5. according to the conductive bearing of claim 1 or 2 or 3 described high voltage isolators, it is characterized in that described conductive arm (1) is the conduction output shaft of one " L " shape.
6. according to the conductive bearing of claim 1 or 2 or 3 described high voltage isolators, it is characterized in that described conductive arm (1) can be provided with annular arc groove with ball fingertip (3) contact position.
7. the conductive bearing of high voltage isolator according to claim 1 is characterized in that, is marked with conductive grease around described spring (4) and the ball fingertip (3).
8. according to the conductive bearing of claim 1 or 7 described high voltage isolators, it is characterized in that, be equipped with copper back-up ring (5) between the ball fingertip (3) of described spring (4) and both sides.
9. the conductive bearing of high voltage isolator according to claim 1 is characterized in that, described bearing cap (8) is fixedly linked by threaded engagement with bearing base (6).
10. the conductive bearing of high voltage isolator according to claim 1 is characterized in that, the taper seat (601) on described bearing base (6) axis hole can be an arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201393835U CN201478135U (en) | 2009-07-08 | 2009-07-08 | Conductive bearing of high-voltage disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201393835U CN201478135U (en) | 2009-07-08 | 2009-07-08 | Conductive bearing of high-voltage disconnecting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201478135U true CN201478135U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201393835U Expired - Fee Related CN201478135U (en) | 2009-07-08 | 2009-07-08 | Conductive bearing of high-voltage disconnecting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201478135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021720A (en) * | 2012-12-28 | 2013-04-03 | 辽宁华隆电力科技有限公司 | Electric connecting mechanism for outdoor alternating-current high-voltage disconnector |
-
2009
- 2009-07-08 CN CN2009201393835U patent/CN201478135U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021720A (en) * | 2012-12-28 | 2013-04-03 | 辽宁华隆电力科技有限公司 | Electric connecting mechanism for outdoor alternating-current high-voltage disconnector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XIAMEN ANDAXING ELECTRIC GROUP CO., LTD. Free format text: FORMER NAME: XIAMEN ANDAXING ELECTRIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 361004 Fujian Province, Xiamen City Industrial Park 58 Siming District Patentee after: Xiamen Andaxing Electrical Group Co., Ltd. Address before: 361004 Fujian Province, Xiamen City Industrial Park 58 Siming District Patentee before: Xiamen Andaxing Electric Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20150708 |
|
| EXPY | Termination of patent right or utility model |