CN203406579U - Aluminum alloy core aluminum type wire lining pipe large steel anchor type strain clamp - Google Patents
Aluminum alloy core aluminum type wire lining pipe large steel anchor type strain clamp Download PDFInfo
- Publication number
- CN203406579U CN203406579U CN201320531404.4U CN201320531404U CN203406579U CN 203406579 U CN203406579 U CN 203406579U CN 201320531404 U CN201320531404 U CN 201320531404U CN 203406579 U CN203406579 U CN 203406579U
- Authority
- CN
- China
- Prior art keywords
- alloy core
- aluminum
- steel anchor
- large steel
- aluminium
- 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 - Lifetime
Links
Images
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model provides an aluminum alloy core aluminum type wire lining pipe large steel anchor type strain clamp. The strain clamp is arranged at the terminal of an overhead power transmission line, and is used for anchoring an aluminum alloy core aluminum type wire and keeping electrical, mechanical properties of the aluminum alloy core aluminum type wire. The strain clamp comprises a large steel anchor and an aluminum pipe which are arranged in the same axis direction, and the aluminum alloy core aluminum type wire is disposed inside the aluminum pipe. The improvement of the strain clamp is that one end of the large steel anchor is a circular ring with an elliptical shape, the other end of the large steel anchor is provided with a hole in the axis direction, the outer side of the middle of the large steel anchor is provided with a thread, aluminum alloy cores of the aluminum alloy core aluminum type wire are arranged in the hole, an aluminum lining pipe is arranged between the aluminum alloy cores and the hole, and an aluminum sleeve is arranged between the aluminum alloy core aluminum type wire and the aluminum pipe. Compare with the prior art, the aluminum alloy cores of the wire of the strain clamp are disposed inside the large steel anchor and are connected in a hydraulic compression joint mode, so that the wire is more effectively and stably hold by the large steel anchor, the technology is mature, the quality of the strain clamp achieved by the compression joint mode is easily ensured, and a compression joint problem for the aluminum alloy core aluminum type wire is solved.
Description
Technical field
The utility model relates to a kind of strain clamp, specifically relates to a kind of large steel anchor of aluminium alloy core, aluminium molded line wire internal lining pipe type strain clamp for overhead transmission line.
Background technology
The electric energy that generator sends, after transformer boosts, then is realized transmission of electricity through the control appliance such as circuit breaker access transmission line.By version, transmission line is divided into overhead transmission line and cable line.Overhead transmission line is erected at and groundly overhead line structures, wire, insulator, line hardware, bracing wire, pole and tower foundation, earthing device etc., consists of.According to the character of carrying electric current, transmission of electricity is divided into ac transmission and direct current transportation.First successfully realized direct current transportation the eighties in 19th century.But because the voltage of direct current transportation had been difficult to continue to improve under technical conditions at that time, so that ability to transmit electricity and benefit are restricted.In 19 end of the centurys, direct current transportation is progressively replaced by ac transmission.The success of ac transmission, has welcome the electrified social New Times in 20th century.Since the sixties in 20th century, direct current transportation has again new development, matches with ac transmission, forms the electric power system that alternating current-direct current mixes.
The process of transmission of electricity is exactly that electromagnetic energy transmits along the direction of transmission line, and circuit ability to transmit electricity is subject to the domination of the various rules of electromagnetic field and circuit.With ground potential (zero potential) as a reference point, line conductor all need the high voltage in being applied by power supply under, be called transmission voltage.Transmission line is determined maximum delivery power after considering technology, the every factor of economic dispatch, is called the transmission capacity of this circuit.Transmission capacity substantially to square being directly proportional of transmission voltage.Therefore, improving transmission voltage is the technical way of realizing large capacity or long distance power transmission, and the level of raising is the outstanding feature of technology of transmission of electricity development level.
From evolution, transmission voltage grade approximately increases with the relation of twice.When energy output increases to 4 times of left and right, there is a new higher electric pressure.Conventionally the transmission line of 35～220KV is called to high-tension line (HV), the transmission line of 330～750KV is called supertension line (EHV), and transmission line more than 750KV is called extra high voltage line (UHV).In general, transmission of electric energy capacity is larger, and the electric pressure that circuit adopts is just higher.Adopt EHV transmission, can effectively reduce line loss, reduce circuit unit price, account for less arable land, be fully used in circuit corridor.
The strain clamp of using in transmission line is that wire or lightning conducter are fixed on to a kind of folder on the strain insulator string of non-rectilinear shaft tower, plays anchorage effect, is also used for fixing the bracing wire of bracing wire shaft tower, is the important gold utensil in transmission line.
Along with the development of technology, the application of extra high voltage line transmission of electricity has promoted the conveying capacity of China's electrical network greatly.The data that provide according to State Grid Corporation of China show, a loop extra-high voltage direct-current electrical network can send 6,000,000 kilowatts of electric weight, is equivalent to 5 to 6 times of existing 500 Kilovolt Direct Current nets, and power transmission distance is also 2 to 3 times of the latter, so efficiency improves greatly.In addition ，Ju State Grid Corporation of China measuring and calculating, carries the electric weight of same power, can be than the land resource that adopts 500 kilovolts of supertension lines savings 60% if adopt extra high voltage line to transmit electricity.It is target that UHV Transmission Engineering be take construction " environmentally friendly " engineering, optimizes the design of engineering comprehensively, and strict guarantee electric field, magnetic field, audible noise and radio interference level meet standard-required.For this reason, if design adopts plain conductor, certainly will to strengthen conductor cross-section and increase the division radical of wire, certainly will increase like this use amount of wire and bus, the physical dimension of steel tower and circuit width of corridor etc., thereby strengthen construction investment.Meeting under the prerequisite of transmission line capability and line project requirement, design adopts a kind of new structure wire that guarantees power transmission conductor current capacity, guarantee sectional area of wire, reduce the diameter of wire, can greatly save conductor material, and make the external diameter and surperficial transmission of electricity and the corona requirement that can meet circuit of wire, greatly reduce total weight and the wire division radical of wire, reduce steel tower load and construction weight, thereby significantly reduced track investment.For this reason, design adopts aluminium alloy core, aluminium molded line wire, to optimize steel tower and line design, reduces construction investment.
Aluminium alloy core, aluminium molded line wire, as a kind of wire of new structure, needs a kind of strain clamp of special construction to coordinate with it, effectively aluminium alloy core, aluminium molded line wire is stablized to gripping, transmits power and electric loading simultaneously.
Utility model content
For meeting the needs of aluminium alloy core, aluminium molded line wire transmission line, the purpose of this utility model is to provide the large steel anchor of a kind of aluminium alloy core, aluminium molded line wire internal lining pipe type strain clamp, can aluminium alloy core, aluminium molded line wire be stablized effectively and be gripped, can also transmit power and electric loading simultaneously.
The purpose of this utility model is to adopt following technical proposals to realize:
The large steel anchor of a kind of aluminium alloy core, aluminium molded line wire internal lining pipe type strain clamp that the utility model provides, described strain clamp is arranged on overhead transmission line terminal, for aluminium alloy core, aluminium molded line wire described in anchoring, and keep its electric, mechanical performance, comprise the large steel anchor and the aluminum pipe that along same axis direction, arrange, described aluminium alloy core, aluminium molded line is arranged in described aluminum pipe, its improvements are, one end of described large steel anchor is oval annulus, the other end is provided with hole along its axis direction, and middle outside is provided with screw thread; The aluminium alloy core of described aluminium alloy core, aluminium molded line is arranged in described hole, between described aluminium alloy core and described hole, is provided with aluminium bushing pipe, between described aluminium alloy core, aluminium molded line and described aluminum pipe, is provided with aluminum casing.
Wherein, described aluminium alloy core, aluminium bushing pipe and large steel anchor are that fluid pressure type crimping is integrated.
Wherein, inner side, one end of described aluminum pipe is provided with the screw thread matching with described large steel anchor, and other end outside is provided with chamfering.
Wherein, the aluminum steel of described aluminum pipe, aluminum casing and aluminium alloy core, aluminium molded line is that fluid pressure type crimping is integrated.
Compared with prior art, the beneficial effect that the utility model reaches is:
1, the large steel anchor of the aluminium alloy core, aluminium molded line wire internal lining pipe type strain clamp that the utility model provides, adopts fluid pressure type crimping, technical maturity, and crimp quality is easily protected, and has overcome the crimping problem of aluminium alloy core, aluminium molded line.
2, the large steel anchor of the aluminium alloy core, aluminium molded line wire internal lining pipe type strain clamp that the utility model provides, is arranged on large steel anchor by the aluminium alloy core of wire inner also by fluid pressure type crimping, greatly improves effective, stable that large steel anchor grips wire.
3, the large steel anchor of the aluminium alloy core, aluminium molded line wire internal lining pipe type strain clamp that the utility model provides, the large steel anchor that adopts specific composition proportion to manufacture, its grip value can reach aluminium alloy core accumulation the more than 90% of pull-off force of wire, greatly improves effective, stable that large steel anchor grips aluminium alloy core, aluminium molded line wire.
4, the large steel anchor of the aluminium alloy core, aluminium molded line wire internal lining pipe type strain clamp that the utility model provides, rational in infrastructure, install conveniently, greatly improved operating efficiency.
5, the large steel anchor of the aluminium alloy core, aluminium molded line wire internal lining pipe type strain clamp of utility model of the present invention, the aluminum pipe of employing, also can be as the good conduction current of electric conductor except effectively bearing the pulling force of aluminum stranded wire of aluminum alloy core wire.
6, the large steel anchor of the aluminium alloy core, aluminium molded line wire internal lining pipe type strain clamp that the utility model provides arranges aluminum casing between aluminum pipe and wire, greatly improves effective, stable that aluminum pipe grips aluminium alloy core, aluminium molded line wire.
7, the large steel anchor of the aluminium alloy core, aluminium molded line wire internal lining pipe type strain clamp that the utility model provides arranges aluminium bushing pipe between large steel anchor and aluminium alloy core, greatly improves effective, stable that aluminum pipe grips aluminium alloy core, aluminium molded line wire
Accompanying drawing explanation
Fig. 1 is: the aluminium alloy core, aluminium molded line conductor cross-section structural representation that the utility model provides;
Fig. 2 is: assembling schematic diagram before the large steel anchor of the aluminium alloy core, aluminium molded line wire internal lining pipe type strain clamp crimping that the utility model provides;
Fig. 3 is: the structural representation of the aluminum pipe that the utility model provides;
Fig. 4 is: the structural representation of the large steel anchor that the utility model provides;
Fig. 5 is: the structural representation of the aluminium bushing pipe that the utility model provides;
Fig. 6 is: the structural representation of the aluminum casing that the utility model provides;
Fig. 7 is: after the large steel anchor of the aluminium alloy core, aluminium molded line wire internal lining pipe type strain clamp crimping that the utility model provides, assemble schematic diagram;
Wherein: 1, large steel anchor; 2, aluminum pipe; 3, aluminium bushing pipe; 4, aluminum casing; 5, aluminium alloy core, aluminium molded line wire; 6, aluminum steel; 7, aluminium alloy core.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
It is example that the present embodiment be take aluminium alloy core, aluminium molded line conductor strain clamp, as shown in Figures 1 to 7, the aluminium alloy core, aluminium molded line conductor strain clamp that the utility model embodiment provides comprises: large steel anchor 1, aluminum pipe 2, aluminium bushing pipe 3, aluminum casing 4, aluminium alloy core, aluminium molded line wire 5, aluminum steel 6, aluminium alloy core 7.
As shown in Figure 3, inner side, one end of aluminum pipe 2 is provided with screw thread, and other end outside is provided with chamfering.
As shown in Figure 4, one end of large steel anchor 1 is oval annulus, and the other end is provided with hole along its axis direction, and middle outside is provided with the screw thread matching with aluminum pipe 2.
As shown in Figure 7, large steel anchor 1 is arranged on the end of thread of aluminum pipe 2; Aluminium alloy core, aluminium molded line wire 5 is arranged in aluminum pipe 2, its aluminium alloy core 7 is arranged in the hole of large steel anchor 1, between large steel anchor 1 and aluminium alloy core 7, be provided with aluminium bushing pipe 3, and by the crimping mode of hydraulic pressure, large steel anchor 1, aluminium bushing pipe 3 and aluminium alloy core 7 crimping be integrated; Meanwhile, between aluminum pipe 2 and aluminium alloy core, aluminium molded line wire 5, be provided with aluminum casing 4, aluminum pipe 2, aluminum casing 4 and aluminum steel 6 are integrated by the crimping mode of hydraulic pressure.
Wherein, the composition of large steel anchor 1 is by weight percentage: carbon 0.11%, and silicon 0.25%, manganese 0.54%, sulphur 0.022%, phosphorus≤0.018%, chromium≤0.09%, nickel≤0.15%, copper≤0.11%, iron is surplus; Tensile strength >=33Mpa, hardness HB133.
Wherein, the composition of aluminum pipe 2, aluminium bushing pipe 3 and aluminum casing 4 is by weight percentage: silicon 0.18%, and copper 0.03%, magnesium 0.02%, zinc 0.06%, manganese 0.04%, titanium 0.05%, iron 0.20%, aluminium is surplus.
The hardness HB60 of aluminium alloy core 7, by to aluminium alloy core 7, independent repeated comparative test can obtain, the grip value of ordinary steel anchor reaches 85.4%～89.3% of aluminium alloy core 7 accumulation pull-off forces, and the grip value of large steel anchor 1 provided by the invention can reach aluminium alloy core 7 accumulation the more than 90% of pull-off force.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement embodiment of the present utility model, and do not depart from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. the large steel anchor of an aluminium alloy core, aluminium molded line wire internal lining pipe type strain clamp, described strain clamp is arranged on overhead transmission line terminal, for aluminium alloy core, aluminium molded line wire described in anchoring, and keep its electric, mechanical performance, comprise the large steel anchor and the aluminum pipe that along same axis direction, arrange, described aluminium alloy core, aluminium molded line is arranged in described aluminum pipe, it is characterized in that, one end of described large steel anchor is oval annulus, and the other end is provided with hole along its axis direction, and middle outside is provided with screw thread; The aluminium alloy core of described aluminium alloy core, aluminium molded line is arranged in described hole, between described aluminium alloy core and described hole, is provided with aluminium bushing pipe, between described aluminium alloy core, aluminium molded line and described aluminum pipe, is provided with aluminum casing.
2. the large steel anchor of aluminium alloy core, aluminium molded line wire internal lining pipe as claimed in claim 1 type strain clamp, is characterized in that, described aluminium alloy core, aluminium bushing pipe and large steel anchor are that fluid pressure type crimping is integrated.
3. the large steel anchor of aluminium alloy core, aluminium molded line wire internal lining pipe as claimed in claim 1 type strain clamp, is characterized in that, the inner side, one end of described aluminum pipe is provided with the screw thread matching with described large steel anchor, and other end outside is provided with chamfering.
4. the large steel anchor of aluminium alloy core, aluminium molded line wire internal lining pipe as claimed in claim 1 type strain clamp, is characterized in that, the aluminum steel of described aluminum pipe, aluminum casing and aluminium alloy core, aluminium molded line is that fluid pressure type crimping is integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531404.4U CN203406579U (en) | 2013-08-29 | 2013-08-29 | Aluminum alloy core aluminum type wire lining pipe large steel anchor type strain clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531404.4U CN203406579U (en) | 2013-08-29 | 2013-08-29 | Aluminum alloy core aluminum type wire lining pipe large steel anchor type strain clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203406579U true CN203406579U (en) | 2014-01-22 |
Family
ID=49942499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320531404.4U Expired - Lifetime CN203406579U (en) | 2013-08-29 | 2013-08-29 | Aluminum alloy core aluminum type wire lining pipe large steel anchor type strain clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203406579U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457216A (en) * | 2013-08-29 | 2013-12-18 | 国家电网公司 | Large steel anchor type strain clamp of aluminum-alloy-cored aluminum formed wire conductor liner tube |
| CN106785520A (en) * | 2017-02-15 | 2017-05-31 | 国网山东省电力公司临沂供电公司 | Integral type compresses T binding clips |
| CN106848968A (en) * | 2017-01-13 | 2017-06-13 | 国网福建省电力有限公司 | Strain insulator pressure connecting pipe for lead wire protector |
-
2013
- 2013-08-29 CN CN201320531404.4U patent/CN203406579U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457216A (en) * | 2013-08-29 | 2013-12-18 | 国家电网公司 | Large steel anchor type strain clamp of aluminum-alloy-cored aluminum formed wire conductor liner tube |
| CN106848968A (en) * | 2017-01-13 | 2017-06-13 | 国网福建省电力有限公司 | Strain insulator pressure connecting pipe for lead wire protector |
| CN106785520A (en) * | 2017-02-15 | 2017-05-31 | 国网山东省电力公司临沂供电公司 | Integral type compresses T binding clips |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202013446U (en) | OPGW (optical fiber composite overhead ground wire) optical cable insulation residual cable rack used in 500kV lines | |
| CN203406579U (en) | Aluminum alloy core aluminum type wire lining pipe large steel anchor type strain clamp | |
| CN103457216A (en) | Large steel anchor type strain clamp of aluminum-alloy-cored aluminum formed wire conductor liner tube | |
| CN203398712U (en) | Large-steel-anchor type strain clamp for aluminum alloy core aluminum stranded wire | |
| CN201635465U (en) | Extra-high voltage electric transmission line terminal high tower | |
| CN203481752U (en) | Aluminum alloy core aluminum wire lead large steel anchor type tension wire clamp | |
| CN203398711U (en) | Lining-pipe large-steel-anchor type strain clamp for aluminum alloy core aluminum stranded wire | |
| CN102966257B (en) | 750kV composite material cross arm | |
| CN103457215A (en) | Large steel anchor type strain clamp of aluminum-alloy-cored aluminum strand liner tube | |
| CN202887848U (en) | Extra-high voltage extra-high intensity large-section aluminum conductor steel reinforced | |
| CN203690018U (en) | Minus or plus 800 kV extra-high voltage DC line sectional type composite insulator conducting wire suspension string | |
| CN203386908U (en) | Splicing sleeve | |
| CN203553741U (en) | A conical sleeve combined type extra high voltage direct current power-transmission-line-used hard insulation pull rod | |
| CN103457218B (en) | A kind of aluminium alloy core, aluminium molded line wire big steel anchor type strain clamp | |
| CN203352097U (en) | Splicing sleeve | |
| CN103457217A (en) | Large steel anchor type strain clamp of aluminum-alloy-cored aluminum strand | |
| CN103326137B (en) | A kind of splicing sleeve | |
| CN201503708U (en) | 900/75 high-strength conductor for plus or minus 800 kV UHV DC transmission lines | |
| CN203481751U (en) | Strain clamp for aluminum-alloy core aluminum stranded wire | |
| CN208226518U (en) | A kind of anti-corona strain clamp | |
| CN205487579U (en) | Strain insulator | |
| Zhou et al. | Technical and economic analysis of ACCC applied in UHV-DC power transmission lines | |
| CN103326308A (en) | Splicing sleeve | |
| CN105375432A (en) | High voltage cable laying support used for tunnel construction | |
| CN206585398U (en) | A kind of distribution line anchor support high pressure phase lead loop energy taking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |
|
| CX01 | Expiry of patent term |