CN204205073U - Parallel groove clamp - Google Patents
Parallel groove clamp Download PDFInfo
- Publication number
- CN204205073U CN204205073U CN201420735055.2U CN201420735055U CN204205073U CN 204205073 U CN204205073 U CN 204205073U CN 201420735055 U CN201420735055 U CN 201420735055U CN 204205073 U CN204205073 U CN 204205073U
- Authority
- CN
- China
- Prior art keywords
- wire clamp
- parallel groove
- mounting cylinder
- substrate
- line bank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000758 substrate Substances 0.000 claims abstract description 61
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 238000002788 crimping Methods 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 13
- 230000007547 defect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
Abstract
The utility model provides a kind of parallel groove clamp.This parallel groove clamp is for connecting transmission pressure and line bank, comprise: wire clamp substrate, one lateral edges of wire clamp substrate is provided with the column mounting cylinder that at least one has installing hole, mounting cylinder is used for transmission pressure crimping to be fixed in installing hole, wire clamp substrate comprises connecting surface, and the respective surfaces of connecting surface and line bank is fitted; Securing member, is arranged on wire clamp substrate, links together to make wire clamp substrate and line bank.The technical solution of the utility model is by reducing the contact resistance between wire clamp substrate and line bank, and the contact resistance reduced between transmission pressure and mounting cylinder, thus the caloric value at parallel groove clamp place in minimizing path, to reach the object of the heating problem solving parallel groove clamp place.
Description
Technical field
The utility model relates to transmission line connection area, in particular to a kind of parallel groove clamp.
Background technology
Transformer station is in the running of recent years, and overheated situation often occurs at the parallel groove clamp place of 10kV bus bridge, as: on July 24th, 2010, the wall bushing joint heating of the 10kV bus bridge in somewhere.What operator on duty reported through thermometric this defect is recorded as: A phase 115 DEG C, B phase 73 DEG C, C phase 70 DEG C.In power failure processing procedure, maintainer finds that the mode of connection at this place is the connection type of application parallel groove clamp.After pulling down parallel groove clamp, maintainer finds that each contact-making surface oxidation between parallel groove clamp and line bank is serious, and conductive paste has incrustation phenomenon.Above-mentioned defect is only one of typical defect of the parallel groove clamp place heating of 10kV bus bridge.In recent years, maintainer made discovery from observation, and parallel groove clamp has become the one of the main reasons of the wall bushing joint heating of 10kV bus bridge.
The main cause of the parallel groove clamp place heating in path is the problem that existing parallel groove clamp exists structure and crudy, and existing parallel groove clamp is unstable to the fastening force of wire in path.Parallel groove clamp is too loose to the fastening force of wire, and the contact resistance of parallel groove clamp and wire can be made very large; Parallel groove clamp is too tight to the fastening force of wire, makes wire by parallel groove clamp pinch lead wire, wire is out of shape.At the parallel groove clamp place of path, due to the creep of wire, thus the fastening force of parallel groove clamp to wire declines very soon, makes the contact resistance between parallel groove clamp and wire can progressively become large.In addition, at wire after the cold cycling of expanding with heat and contract with cold, between parallel groove clamp and wire, can space be left, thus cause the contact resistance between parallel groove clamp and wire to rise very soon.Because the contact resistance between parallel groove clamp and wire increases, thus cause the result that the new round at parallel groove clamp place is generated heat, this will produce vicious circle, until joint burns out.
In order to solve the heating problem at existing parallel groove clamp place, prior art is rectified and improved whole 10kV bus bridge, uses copper strips to connect or use novel bus after changing to the hard bus bar of rectangle.Apply the heating defect at the existing parallel groove clamp place of such technological means process, following shortcoming will be produced thereupon:
(1) service work interruption duration is long: generally need to stop No. 2 transformers, and first time carries out mapping operations when stopping transformer, carries out installment work when second time stops transformer, and second time stops transformer, and to carry out time of circuit installment work long.
(2) renewal cost is high: adopting the prior art changing 10kV bus to solve heating defect needs again to order the parts such as hundred meters of bronze medals, gold utensil, porcelain vases, and the construction material produced take, the appropriate litigation fees such as labour cost in the cost of a small-sized improvement project, this is far longer than and adopts mode of replacing parallel groove clamp to process the cost of defect.
Utility model content
The utility model aims to provide a kind of parallel groove clamp, to solve the heating problem of the junction of applying parallel groove clamp in prior art in path, thus ensures the normally of path.
To achieve these goals, according to an aspect of the present utility model, provide a kind of parallel groove clamp, this parallel groove clamp is for connecting transmission pressure and line bank, comprise: wire clamp substrate, a lateral edges of wire clamp substrate is provided with the column mounting cylinder that at least one has installing hole, mounting cylinder is used for transmission pressure crimping to be fixed in installing hole, wire clamp substrate comprises connecting surface, and the respective surfaces of connecting surface and line bank is fitted; Securing member, is arranged on wire clamp substrate, links together to make wire clamp substrate and line bank.
Further, the axis of mounting cylinder is parallel with connecting surface.
Further, wire clamp substrate and mounting cylinder are structure as a whole.
Further, one end of mounting cylinder is welded on a lateral edges of wire clamp substrate.
Further, securing member comprises multiple fastening bolt, and multiple fastening bolt is located in the first bolt hole on wire clamp substrate and the second bolt hole on line bank, and with corresponding multiple nut screw connection with fastening wire clamp substrate and line bank.
Further, wire clamp substrate comprises copper material flitch or aluminium flitch.
Application the technical solution of the utility model, at least one column mounting cylinder is arranged on a lateral edges of wire clamp substrate, and make wire clamp substrate contact with the respective surfaces between line bank and interference can not be caused, and wire clamp substrate and line bank can fit tightly under being fastenedly connected of securing member, thus the contact resistance reduced between wire clamp substrate and line bank, then reduce the caloric value between wire clamp substrate and line bank.Because transmission pressure is fixed on mounting cylinder, because of the situation that the wriggling this eliminated between transmission pressure and mounting cylinder fluffs, then reduce the contact resistance between transmission pressure and mounting cylinder, thus reduce the caloric value between transmission pressure and mounting cylinder.Application the technical solution of the utility model, by reducing the contact resistance between wire clamp substrate and line bank, and the contact resistance reduced between transmission pressure and mounting cylinder, thus reduce the caloric value at parallel groove clamp place in path, to reach the object of the heating problem solving parallel groove clamp place.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the assembly structure schematic diagram of the parallel groove clamp of embodiment of the present utility model.
Description of reference numerals:
100, transmission pressure; 10, wire clamp substrate;
11, mounting cylinder; 20, line bank;
30, securing member.
Embodiment
Hereinafter also describe the utility model in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
As shown in Figure 1, according to embodiment of the present utility model, this parallel groove clamp is for connecting transmission pressure 100 and line bank 20, and it comprises wire clamp substrate 10 and securing member 30.One lateral edges of wire clamp substrate 10 is provided with the column mounting cylinder 11 that at least one has installing hole, transmission pressure 100 is fixed in installing hole, and namely mounting cylinder 11 is for being fixed in installing hole by transmission pressure 100 crimping; Securing member 30 is arranged on described wire clamp substrate 10, and securing member 30 is connected between wire clamp substrate 10 and line bank 20 and wire clamp substrate 10 and line bank 20 is linked together; Wire clamp substrate 10 comprises connecting surface, and the respective surfaces of connecting surface and line bank 20 fits tightly.
At least one column mounting cylinder 11 is arranged on a lateral edges of wire clamp substrate 10, the respective surfaces between wire clamp substrate 10 with line bank 20 is made to contact and interference can not be caused, and the corresponding surface between wire clamp substrate 10 with line bank 20 can fit tightly under being fastenedly connected of securing member 30, thus the contact resistance reduced between wire clamp substrate 10 and line bank 20, then reduce the caloric value between wire clamp substrate 10 and line bank 20.Because transmission pressure 100 is fixed on mounting cylinder 11, because this eliminating the situation that the wriggling between transmission pressure 100 and mounting cylinder 11 fluffs, then reduce the contact resistance between transmission pressure 100 and mounting cylinder 11, thus reduce the caloric value between transmission pressure 100 and mounting cylinder 11.Application the technical solution of the utility model, by reducing the contact resistance between wire clamp substrate 10 and line bank 20, and the contact resistance reduced between transmission pressure 100 and mounting cylinder 11, thus the caloric value at parallel groove clamp place in minimizing path, to reach the object of the heating problem solving parallel groove clamp place.
In the present embodiment, mounting cylinder 11 is columned mounting cylinder, and the installing hole installing transmission pressure 100 is blind round hole (generally, wire uses LGL300 or 400 lines, therefore needs the aperture size coming fabrication and installation hole according to GB).In erecting bed, transmission pressure 100 is placed in blind round hole by staff, then the hydraulic pressure of 100T is adopted to crimp with transmission pressure 100 mounting cylinder 11, transmission pressure 100 is firmly crimped in installing hole, thus the wriggling problem solved between transmission pressure 100 and mounting cylinder 11, then the gap occurred between the wall of the installing hole of mounting cylinder 11 and transmission pressure 100 is eliminated, because this reducing the contact resistance between mounting cylinder 11 and transmission pressure 100, thus reduce caloric value.
The axis of mounting cylinder 11 is parallel with the contact-making surface between wire clamp substrate 10 and line bank 20, and namely the axis of mounting cylinder 11 is parallel with connecting surface.The parallel groove clamp applying this structure, to connect transmission pressure 100 and line bank 20, makes transmission pressure 100 locate after being connected in a parallel direction with line bank 20, can be convenient to like this be combined with wall bushing.In addition, the axis of mounting cylinder 11 can be arranged with wire clamp substrate 10 one-tenth angles, is preferably vertical set-up mode.Parallel groove clamp can be made like this to meet needs between transmission pressure 100 with line bank 20 and to turn to the requirement be connected.In addition, mounting cylinder 11 can also deflect certain angle relative to connecting surface, thus adaptation transmission pressure 100 and the line bank 20 that will be connected exist the situation of certain deflection angle.
Further, wire clamp substrate 10 and mounting cylinder 11 are structure as a whole, such as, apply the method monoblock cast parallel groove clamp of casting, and through a series of Technology for Heating Processing, to strengthen the bonding strength between mounting cylinder 11 and wire clamp substrate 10.In addition, one end of mounting cylinder 11 is welded on a lateral edges of wire clamp substrate 10.
In the present embodiment, securing member 30 comprises multiple fastening bolt, multiple fastening bolt is through the first bolt hole on wire clamp substrate 10 and the second bolt hole on line bank 20, the second bolt hole one_to_one corresponding on the first bolt hole on wire clamp substrate 10 and line bank 20, and the first bolt hole on wire clamp substrate 10 be carry out on-the-spot distribution according to the second bolt hole situation on the line bank 20 of job site or carry out on-the-spot distribution according to the situation of the remaining bolt quantity in job site, multiple fastening bolt and corresponding multiple nut screw connection are with fastening wire clamp substrate 10 and line bank 20.Multiple fastening bolt is uniformly distributed, multiple fastening bolt is evenly exerted a force to wire clamp substrate 10 and line bank 20, thus make the respective surfaces of wire clamp substrate 10 and line bank 20 fit tightly to reduce the contact resistance between wire clamp substrate 10 and line bank 20, thus reduce caloric value.
As shown in Figure 1, apply three parallel groove clamps and be connected between six roots of sensation homopolarity transmission pressure 100 with two homopolarity line banks 20, every two adjacent parallel groove clamp times clamp a line bank.The problem of the size differences of different line bank 20 is there is due to job site, in order to adapt to site operation better, and consider the external diameter size of the mounting cylinder 11 of conducting wire, therefore, the thickness of the wire clamp substrate 10 of parallel groove clamp is equal with the external diameter of mounting cylinder 11; And the external diameter of the wire clamp substrate 10 and mounting cylinder 11 that are positioned at the parallel groove clamp of middle parallel groove clamp both sides can not wait (also can be equal), but the transversal outward flange of mounting cylinder 11 can not exceed the extension plane of the contact surface between wire clamp substrate 10 and line bank 20, interfere to avoid being formed to install with middle parallel groove clamp.
In order to reduce the resistance of parallel groove clamp self, thus parallel groove clamp comprises copper material flitch or aluminium flitch.
As can be seen from the above description, the utility model the above embodiments achieve following technique effect:
Application the technical solution of the utility model, by reducing the contact resistance between wire clamp substrate and line bank, and the contact resistance reduced between transmission pressure and mounting cylinder, thus reduce the caloric value at parallel groove clamp place in path, to reach the object of the heating problem solving parallel groove clamp place.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (6)
1. a parallel groove clamp, for connecting transmission pressure (100) and line bank (20), is characterized in that, comprise:
Wire clamp substrate (10), one lateral edges of described wire clamp substrate (10) is provided with the column mounting cylinder (11) that at least one has installing hole, described mounting cylinder (11) is for being fixed in described installing hole by described transmission pressure (100) crimping, described wire clamp substrate (10) comprises connecting surface, and the respective surfaces of described connecting surface and described line bank (20) is fitted;
Securing member (30), is arranged on described wire clamp substrate (10), links together to make described wire clamp substrate (10) and described line bank (20).
2. parallel groove clamp according to claim 1, is characterized in that, the axis of described mounting cylinder (11) is parallel with described connecting surface.
3. parallel groove clamp according to claim 1 and 2, is characterized in that, described wire clamp substrate (10) and described mounting cylinder (11) are structure as a whole.
4. parallel groove clamp according to claim 1 and 2, is characterized in that, one end of described mounting cylinder (11) is welded on a lateral edges of described wire clamp substrate (10).
5. parallel groove clamp according to claim 1, it is characterized in that, described securing member (30) comprises multiple fastening bolt, described multiple fastening bolt is located in the first bolt hole on described wire clamp substrate (10) and the second bolt hole on described line bank (20), and with corresponding multiple nut screw connection with fastening described wire clamp substrate (10) and described line bank (20).
6. parallel groove clamp according to claim 1, is characterized in that, described wire clamp substrate (10) comprises copper material flitch or aluminium flitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735055.2U CN204205073U (en) | 2014-11-28 | 2014-11-28 | Parallel groove clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735055.2U CN204205073U (en) | 2014-11-28 | 2014-11-28 | Parallel groove clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204205073U true CN204205073U (en) | 2015-03-11 |
Family
ID=52662996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420735055.2U Expired - Fee Related CN204205073U (en) | 2014-11-28 | 2014-11-28 | Parallel groove clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204205073U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409871A (en) * | 2014-11-28 | 2015-03-11 | 国家电网公司 | Parallel groove clamp |
| CN107342465A (en) * | 2016-04-29 | 2017-11-10 | 迪尔公司 | Electric coupler component |
-
2014
- 2014-11-28 CN CN201420735055.2U patent/CN204205073U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409871A (en) * | 2014-11-28 | 2015-03-11 | 国家电网公司 | Parallel groove clamp |
| CN107342465A (en) * | 2016-04-29 | 2017-11-10 | 迪尔公司 | Electric coupler component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20181128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |