CN201036136Y - Choke transformer traction coil leading device - Google Patents
Choke transformer traction coil leading device Download PDFInfo
- Publication number
- CN201036136Y CN201036136Y CNU2007200317337U CN200720031733U CN201036136Y CN 201036136 Y CN201036136 Y CN 201036136Y CN U2007200317337 U CNU2007200317337 U CN U2007200317337U CN 200720031733 U CN200720031733 U CN 200720031733U CN 201036136 Y CN201036136 Y CN 201036136Y
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- CN
- China
- Prior art keywords
- nut
- transformer
- screw
- screw rod
- conductive casings
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model discloses a lead wire device for drag coils in chocking transformers, and comprises three sets of bolt assemblies; each bolt assembly comprises two screws arranged on the box body of a transformer; the screw arranged outside the box body of the transformer is provided with a bog nut; the screw arranged below the big nut is provided from top to bottom with an insulative sleeve and a small nut; the insulative sleeve is arranged between the screw and the box body of the transformer; a conductive sleeve is arranged the insulative sleeve and the screw; a connecting and fixing sheet is arranged between the upper end surface and the big nut; the lower end surface of the conductive sleeve is connected with the upper end surface of the small surface; the external circumference of the conductive sleeve is provided with threads, and a fixing nut which is arranged by the threads; the fixing nut is touch against the lower end of the insulative sleeve; with reasonable design and simple structure, the utility model can reduce the equipment cost and improve the conductivity, as well as working performance of equipment.
Description
Technical field
The utility model relates to a kind of thread guide devices, the hauling-eye thread guide devices of the used choke transformer of particularly a kind of electric railway signal track circuit.
Background technology
In service in electric railway, the effect of choke transformer in track circuit is in order to the logical locomotive traction electric current of structure, cooperate equipment such as sending end supply transformer, receiving end matching transformer and binary two Bit Track relays simultaneously, constitute 25Hz phase-sensitive track circuits system.At present, become the choke transformer hauling-eye thread guide devices that uses on the device at chokes, be that a terminal with hauling-eye is through on the bolt, a terminal of hauling-eye is guided to the outside of casing by bolt by the inside of choke transformer casing, and link to each other with external connection, finish being connected of hauling-eye terminal and external connection.This jockey and mode have following shortcoming: (1) since bolt not only as electric connecting part but also as secure component, therefore bolt must adopt brass material, just can guarantee its conductivity and enough mechanical strengths, and use more nut and pad, increase contact point, be unfavorable for reducing contact resistance; (2) in order to increase conductive area, every bolt need use 4 copper nuts fastening, has increased equipment cost; (3) because every bolt of choke transformer will be by the electric current (but voltage is very little) of hundreds of even last kiloampere, use through long-term, insulating part wherein will wear out, produce and shrink, the conducting element relative position is changed, contact resistance is strengthened, under the situation of the big electric current that passes through, can make parts such as terminal produce sizable heat, cause equipment fault, influence is driving normally.
The utility model content
The purpose of this utility model is the deficiency that exists at prior art, provide a kind of reasonable in design, simple in structure, cost of manufacture is low, the choke transformer hauling-eye thread guide devices that conducts electricity very well.
The technical solution of the utility model is: a kind of choke transformer hauling-eye thread guide devices, comprise three groups of bolt assemblies, every group of bolt assembly comprises two screw rods 1 that are installed on the transformer-cabinet 12, screw rod 1 upper end that is positioned at transformer-cabinet 12 outsides is equipped with big nut 2, be positioned on the screw rod 1 of big nut 2 belows, by last under be disposed with insulating sleeve 6 and primary nut 9, insulating sleeve 6 is between screw rod 1 and transformer-cabinet 12, it is characterized in that: be provided with conductive casings 14 between described insulating sleeve 6 and the screw rod 1, be provided with between the upper surface of conductive casings 14 and big nut 2 and be connected and anti-rotor 4, be abutted against the upper surface of the lower surface of conductive casings 14 and primary nut 9; The cylindrical of conductive casings 14 is provided with screw thread, and by described screw thread clamp nut 7 is installed, and clamp nut 7 leans the lower end at insulating sleeve 6.
The utility model compared with prior art has the following advantages:
(1) electric connecting part and secure component are rationally separated, can adopt ferrous material, not only increased intensity, and reduced cost as bolt, the nut of securing member;
(2) increased the contact area of electric connecting part, electric conductivity is significantly improved;
(3) because therefore separating of electric connecting part and secure component guaranteed the reliability of electric connecting part work, prolonged useful life;
(4), thereby the generation of stolen incident and the damage of equipment have been reduced because secure component changes ironware into by copper spare.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
A kind of choke transformer hauling-eye thread guide devices as shown in Figure 1, it comprises three groups of bolt assemblies, every group of bolt assembly comprises two screw rods 1 that are installed on the transformer-cabinet 12, screw rod 1 upper end that is positioned at transformer-cabinet 12 outsides is equipped with big nut 2, be positioned on the screw rod 1 of big nut 2 belows, by last under be disposed with insulating sleeve 6 and primary nut 9, insulating sleeve 6 is between screw rod 1 and transformer-cabinet 12, be provided with conductive casings 14 between described insulating sleeve 6 and the screw rod 1, be provided with between the upper surface of conductive casings 14 and big nut 2 and be connected and anti-rotor 4, be abutted against the upper surface of the lower surface of conductive casings 14 and primary nut 9; The cylindrical of conductive casings 14 is provided with screw thread, and by described screw thread clamp nut 7 is installed, and clamp nut 7 leans the lower end at insulating sleeve 6.
Described screw rod 1, big nut 2 and primary nut 9 are made by iron material; Described conductive casings 14 is made by copper product.
During the utility model work, the hauling-eye terminal 8 in transformer-cabinet 12 is installed between conductive casings 14 and the primary nut 9, and by primary nut 9 that it is fastening; External connection terminal 15 is installed in big nut 2 and is connected and prevents between the rotor 4.
Claims (3)
1. choke transformer hauling-eye thread guide devices, comprise three groups of bolt assemblies, every group of bolt assembly comprises two screw rods (1) that are installed on the transformer-cabinet (12), screw rod (1) upper end that is positioned at transformer-cabinet (12) outside is equipped with big nut (2), be positioned on the screw rod (1) of big nut (2) below, by last under be disposed with insulating sleeve (6) and primary nut (9), insulating sleeve (6) is positioned between screw rod (1) and the transformer-cabinet (12), it is characterized in that: be provided with conductive casings (14) between described insulating sleeve (6) and the screw rod (1), be provided with between the upper surface that is positioned at conductive casings (14) and the big nut (2) and be connected and anti-rotor (4), be abutted against the upper surface of the lower surface of conductive casings (14) and primary nut (9); The cylindrical of conductive casings (14) is provided with screw thread, and by described screw thread clamp nut (7) is installed, and clamp nut (7) leans the lower end in insulating sleeve (6).
2. choke transformer hauling-eye thread guide devices according to claim 1 is characterized in that: described screw rod (1), big nut (2) and primary nut (9) are made by iron material.
3. choke transformer hauling-eye thread guide devices according to claim 1 is characterized in that: described conductive casings (14) is made by copper product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200317337U CN201036136Y (en) | 2007-04-30 | 2007-04-30 | Choke transformer traction coil leading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200317337U CN201036136Y (en) | 2007-04-30 | 2007-04-30 | Choke transformer traction coil leading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201036136Y true CN201036136Y (en) | 2008-03-12 |
Family
ID=39197025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200317337U Expired - Lifetime CN201036136Y (en) | 2007-04-30 | 2007-04-30 | Choke transformer traction coil leading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201036136Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546364A (en) * | 2018-12-14 | 2019-03-29 | 北京航天微电科技有限公司 | A kind of anti-turn bolt component for conductive applications |
| CN110415928A (en) * | 2019-08-26 | 2019-11-05 | 山东济宁圣地电业集团有限公司鱼台圣宏电力安装分公司 | A kind of both-end windchill dry-type transformer |
-
2007
- 2007-04-30 CN CNU2007200317337U patent/CN201036136Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546364A (en) * | 2018-12-14 | 2019-03-29 | 北京航天微电科技有限公司 | A kind of anti-turn bolt component for conductive applications |
| CN109546364B (en) * | 2018-12-14 | 2020-09-01 | 北京航天微电科技有限公司 | Anti-rotation bolt assembly for conductive purpose |
| CN110415928A (en) * | 2019-08-26 | 2019-11-05 | 山东济宁圣地电业集团有限公司鱼台圣宏电力安装分公司 | A kind of both-end windchill dry-type transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080312 |