CN203481752U - Aluminum alloy core aluminum wire lead large steel anchor type tension wire clamp - Google Patents
Aluminum alloy core aluminum wire lead large steel anchor type tension wire clamp Download PDFInfo
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- CN203481752U CN203481752U CN201320531599.2U CN201320531599U CN203481752U CN 203481752 U CN203481752 U CN 203481752U CN 201320531599 U CN201320531599 U CN 201320531599U CN 203481752 U CN203481752 U CN 203481752U
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- alloy core
- steel anchor
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Abstract
The utility model provides an aluminum alloy core aluminum wire lead large steel anchor type tension wire clamp. The tension wire clamp is disposed at the terminal of an overhead transmission line for anchoring an aluminum alloy core aluminum wire lead and maintaining electrical and mechanical performance of the aluminum alloy core aluminum wire lead. The tension wire clamp comprises a large steel anchor and an aluminum pipe which are arranged along the same axial direction. The aluminum alloy core aluminum wire is arranged in the aluminum pipe. The improvements are as follows: one end of the large steel anchor is provided with an oval ring , the other end of the large steel anchor is provided with a hole along the axial direction of the large steel anchor, and the outer side in the middle of the large steel anchor is provided with a thread; the aluminum alloy core of the aluminum alloy core aluminum wire is arranged in the hole; and an aluminum sleeve is arranged between the aluminum alloy core aluminum wire and the aluminum pipe. Compared to the prior art, the aluminum alloy core aluminum wire lead large steel anchor type tension wire clamp has the following advantages: the aluminum alloy core of the lead is arranged inside the large steel anchor and is crimped in a fluid pressure mode so that the effectiveness and stability of holding the lead by the large steel anchor are greatly improved; and the fluid pressure mode is adopted, the technology is mature, the crimping quality is easily ensured, and the crimping problem of the aluminum alloy core aluminum wire is overcome.
Description
Technical field
The utility model relates to a kind of strain clamp, is specifically related to a kind of large steel anchor of aluminium alloy core, aluminium molded line wire 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 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 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, aluminium molded line and described aluminum pipe, is provided with aluminum casing.
Wherein, described aluminium alloy core 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 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 type strain clamp that the utility model provides,, the aluminium alloy core of wire is arranged on to large steel anchor inner also by fluid pressure type crimping, greatly improve effective, stable that large steel anchor grips wire.
3, the large steel anchor of the aluminium alloy core, aluminium molded line wire 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 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 type strain clamp that the utility model provides, 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 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.
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 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 aluminum casing that the utility model provides;
Fig. 6 is: after the large steel anchor of the aluminium alloy core, aluminium molded line wire type strain clamp crimping that the utility model provides, assemble schematic diagram;
Wherein: 1, large steel anchor; 2, aluminum pipe; 3, aluminum casing; 4, aluminium alloy core, aluminium molded line wire; 5, aluminium molded line; 6, 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 the large steel anchor of aluminium alloy core, aluminium molded line wire type strain clamp, as shown in Figures 1 to 6, the large steel anchor of the aluminium alloy core, aluminium molded line wire type strain clamp that the utility model embodiment provides comprises: large steel anchor 1, aluminum pipe 2, aluminum casing 3, aluminium alloy core, aluminium molded line wire 4, aluminium molded line 5, aluminium alloy core 6.
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 6, large steel anchor 1 is arranged on the end of thread of aluminum pipe 2; Aluminium alloy core, aluminium molded line wire 4 is arranged in aluminum pipe 2, and its aluminium alloy core 6 is arranged in the hole of large steel anchor 1, and by the crimping mode of hydraulic pressure, large steel anchor 1 and aluminium alloy core 6 crimping is integrated; Meanwhile, between aluminum pipe 2 and aluminium alloy core, aluminium molded line wire 4, be provided with aluminum casing 3, aluminum pipe 2, aluminum casing 3 and aluminum steel 5 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 and aluminum casing 3 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 6, by to aluminium alloy core 6, independent repeated comparative test can obtain, the grip value of ordinary steel anchor reaches 85.4%～89.3% of aluminium alloy core 6 accumulation pull-off forces, and the grip value of large steel anchor 1 provided by the invention can reach aluminium alloy core 6 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 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, 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 as claimed in claim 1 type strain clamp, is characterized in that, described aluminium alloy core 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 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 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 |
|---|---|---|---|
| CN201320531599.2U CN203481752U (en) | 2013-08-29 | 2013-08-29 | Aluminum alloy core aluminum wire lead large steel anchor type tension wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531599.2U CN203481752U (en) | 2013-08-29 | 2013-08-29 | Aluminum alloy core aluminum wire lead large steel anchor type tension wire clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203481752U true CN203481752U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320531599.2U Expired - Lifetime CN203481752U (en) | 2013-08-29 | 2013-08-29 | Aluminum alloy core aluminum wire lead large steel anchor type tension wire clamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN203481752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457218A (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 |
-
2013
- 2013-08-29 CN CN201320531599.2U patent/CN203481752U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457218A (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 |
| CN103457218B (en) * | 2013-08-29 | 2016-08-31 | 国家电网公司 | A kind of aluminium alloy core, aluminium molded line wire big steel anchor type strain clamp |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20140312 |