CN104348123A - Forging integrated type oiling strain clamp for aluminum alloy stranded wire - Google Patents
Forging integrated type oiling strain clamp for aluminum alloy stranded wire Download PDFInfo
- Publication number
- CN104348123A CN104348123A CN201410602130.2A CN201410602130A CN104348123A CN 104348123 A CN104348123 A CN 104348123A CN 201410602130 A CN201410602130 A CN 201410602130A CN 104348123 A CN104348123 A CN 104348123A
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- China
- Prior art keywords
- strain clamp
- wire
- aluminium alloy
- alloy stranded
- connecting leg
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/02—Devices for adjusting or maintaining mechanical tension, e.g. take-up device
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention provides a forging integrated type oiling strain clamp for an aluminum alloy stranded wire. A strain clamp is arranged on an overhead transmission line terminal and is used for anchoring a wire and keeping the electric and mechanical properties of the wire; the strain clamp is characterized in that the strain clamp comprises a pull ring, a connecting pipe and a drainage wire clamp; the connecting pipe and the pull ring are integrally formed along an axial direction; a fixing component and a pulling pin are respectively arranged on the inner wall and the outer wall at one end of the connecting pipe; an oiling hole is arranged in the side wall of the connecting pipe at a joint of the connecting pipe and the pull ring. Compared with the prior art, the forging integrated type oiling strain clamp for the aluminum alloy stranded wire provided by the invention has the advantages that the strain clamp is prevented from being damaged by inner frozen accumulated water, the strength of the strain clamp is increased, the holding capability of the strain clamp for the wire is increased, and a mature crimping technique is adopted so that the crimping quality is excellently ensured.
Description
Technical field
The present invention relates to a kind of strain clamp, specifically relate to a kind of forging integral type oiling strain clamp for aluminium alloy stranded conductor wire.
Background technology
Strain clamp is for being fixed on the strain insulator string of non-rectilinear shaft tower by wire or lightning conducter, playing anchorage effect, also for the bracing wire of fixing bracing wire shaft tower, is the important gold utensil in transmission line.
Extra-high voltage project is to build " environmentally friendly " engineering for target, and optimize the design of engineering, strict guarantee electric field, magnetic field, audible noise and radio interference level meet standard-required comprehensively.For this reason, design adopts a kind of Novel all-aluminum alloy twisted wire construction guidelines ensureing power transmission conductor current capacity, while guarantee wire ability to transmit electricity, alleviate wire weight, and make the external diameter of wire can meet transmission of electricity and the corona requirement of circuit with surface, thus greatly reduce the total weight of wire, decrease steel tower load and construction weight, thus significantly reduce track investment.
Because extra-high voltage project wide coverage, the geographical environment related to, weather are more complicated, there is low temperature time length and weather such as rainfall more grade in some areas, and in such a case, if when strain clamp exists certain vertical angle, rainwater can flow into strain clamp along the gap of wire inside inner, cause the phenomenons such as strain clamp corrosion, if run into microthermal climate, the ponding of strain clamp inside then can freeze, when inner ponding is more, then there will be the phenomenons such as tube, be prone to accidents.
For this reason, need the strain clamp designing a kind of special construction, not only can stablize effective gripping, all aluminium alloy twisted wire wire is coupled together transmitting force and electric loading, avoid strain clamp ponding to freeze simultaneously, ensure its structural strength, avoid having an accident.
Summary of the invention
In order to solve the problem, the invention provides a kind of forging integral type oiling strain clamp for aluminium alloy stranded conductor wire, avoid strain clamp impaired because of inner product water freezing, improve the intensity of strain clamp, improve the bonding streng of strain clamp to wire, adopt ripe compression joint technique, crimp quality is well ensured.
The object of the invention is to adopt following technical proposals to realize:
A kind of forging integral type oiling strain clamp for aluminium alloy stranded conductor wire provided by the invention, described strain clamp is arranged on overhead transmission line terminal, for anchoring wire, and keep its electrically, mechanical performance, its improvements are: described strain clamp comprises draw ring 1, connecting leg 2 and conduction wire clamp 7; Described connecting leg 2 is one-body molded vertically with draw ring 1, and described connecting leg 2 one end inner and outer wall arranges fixture 4 respectively and pulls out slightly; Be positioned at described connecting leg 2 and be provided with oil filler point 3 with described connecting leg 2 sidewall of draw ring 1 junction.
Wherein, described draw ring 1 and connecting leg 2 are aluminum alloy forged one-body molded.
Wherein, described fixture 4 is ring-type or monotonous helical shape or staggered form double helix shape, and arranges along described connecting leg 2 axis direction.
Wherein, the cross section of described fixture 4 is arc or taper.
Wherein, the cross section of described fixture 4 is taper, and its drift angle is 15 ° ~ 30 °.
Wherein, described connecting leg 2 outer wall arranges drainage plate 6, and described drainage plate 6 is connected with conduction wire clamp 7.
Wherein, described drainage plate 6 one end is provided with annulus, described annulus welding or bonding or be crimped on the outer wall of described connecting leg 2; The plate face of the other end is arranged with the rectangular channel to its inner recess.
Wherein, described conduction wire clamp 7 one end is provided with the doubly-linked plate matched with groove, and described doubly-linked plate to be inserted respectively in described groove and is fixedly connected with drainage plate 6 by bolt 8; The other end of described conduction wire clamp 7 arranges hollow circular tube, arranges drainage thread in described hollow circular tube.
Wherein, the wire be arranged in described connecting leg 2 is aluminium alloy stranded conductor wire 5, and the gap between described connecting leg 2 and aluminium alloy stranded conductor wire 5 arranges electric power fat by oil filler point 3; Described connecting leg 2 and aluminium alloy stranded conductor wire 5 are crimped by hydraulic pressure and are integrated.
Wherein, described oil filler point 3 is provided with capping, arranges O-ring seal between described capping and oil filler point 3.
Compared with the prior art, the beneficial effect that the present invention reaches is:
1, the forging integral type oiling strain clamp for aluminium alloy stranded conductor wire provided by the invention, by filling electric power fat in strain clamp inside, avoids strain clamp affects transmission line normal operation because inner product water freezing is impaired.
2, the forging integral type oiling strain clamp for aluminium alloy stranded conductor wire provided by the invention, adopt the processing technology of forging integral type, improve metal inside tissue, improve mechanical performance and the physical property of metal, ensure the continuity of metal fibrous tissue, the fibr tissue of forging and forging profile are consistent, and metal streamline is complete, can ensure that part has good mechanical property and long useful life, effectively ensure that the bulk strength of strain clamp.
3, the forging integral type oiling strain clamp for aluminium alloy stranded conductor wire provided by the invention, only once need crimp strain clamp with wire, reduce crimping number of times, overcoming the problem that common resistance to bracing cable produces because repeatedly crimping.
4, the forging integral type oiling strain clamp for aluminium alloy stranded conductor wire provided by the invention, by the fixture arranged at strain clamp mouth of pipe place, improves the bonding streng of strain clamp to wire; The seal of the cavity formed after simultaneously improve strain clamp and conductor compression jointing, avoids the immersion of the excessive and outside rainwater of cavity inside electric power fat.
5, the forging integral type oiling strain clamp for aluminium alloy stranded conductor wire provided by the invention, adopt ripe compression joint technique, crimp quality is well ensured.
6, the forging integral type oiling strain clamp for aluminium alloy stranded conductor wire provided by the invention, conduction wire clamp and drainage plate adopt doubly-linked plate to be connected, ensure that the anti-fatigue performance of strain clamp when drainage and electric property, improve the security reliability that transmission line runs.
7, the forging integral type oiling strain clamp for aluminium alloy stranded conductor wire provided by the invention, structure is simple, and convenient operation, has wide market prospects.
Accompanying drawing explanation
Fig. 1: the structural representation of aluminium alloy stranded conductor wire;
Fig. 2: the structural representation before strain clamp crimping lead wire provided by the invention;
Fig. 3: the structural representation after strain clamp crimping lead wire provided by the invention;
Fig. 4: the side cross-sectional structural representation after strain clamp crimping lead wire provided by the invention;
Fig. 5: after strain clamp crimping lead wire provided by the invention and assemble drainage plate and conduction wire clamp face structural representation;
Fig. 6: drainage plate provided by the invention face structural representation;
Fig. 7: the side-looking structural representation of drainage plate provided by the invention;
Fig. 8: conduction wire clamp provided by the invention face structural representation;
Fig. 9: the side-looking structural representation of conduction wire clamp provided by the invention;
Wherein: 1, draw ring; 2, connecting leg; 3, oil filler point; 4, fixture; 5, aluminium alloy stranded conductor wire; 6, drainage plate; 7, conduction wire clamp; 8, bolt.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The forging integral type oiling strain clamp for aluminium alloy stranded conductor wire that the embodiment of the present invention provides is arranged on overhead transmission line terminal, for anchoring wire, and keep its electrically, mechanical performance, as shown in Fig. 1 to 5, comprise draw ring 1, connecting leg 2, oil filler point 3, fixture 4, aluminium alloy stranded conductor wire 5, drainage plate 6, conduction wire clamp 7, bolt 8.Draw ring 1 and connecting leg 2 are aluminum alloy forged one-body molded, are provided with oil filler point 3 at draw ring 1 and connecting leg 2 sidewall of connecting leg 2 junction.The inner and outer wall at connecting leg 2 mouth of pipe place arranges fixture 4 respectively and pulls out slightly.
Wherein, fixture 4 is the ring-type or helical form that arrange along the axis direction of connecting leg 2, can be single-screw or staggered form double helix; The cross section of fixture 4 is arc or taper, and when the cross section of fixture 4 is taper, its drift angle is 15 ° ~ 30 °.
Wherein, as shown in Fig. 6 to 9, drainage plate 6 one end is provided with annulus, for being enclosed within the outer wall of connecting leg 2 and being fixedly connected with connecting leg 2 by welding or mode that is bonding or crimping; The plate face of the other end is arranged with the rectangular channel caved inward, and the parallel double connecting plate of conduction wire clamp 7 is fastenedly connected by bolt 8 and drainage plate 6 in insertion groove respectively.Conduction wire clamp 7 is also provided with the hollow circular tube for connecting drainage thread.
Concrete operation is as follows:
First, the annulus of drainage plate 6 is enclosed within connecting leg 2, and welding connect or bonding or crimping be integrated;
Secondly, aluminium alloy stranded conductor wire 5 is inserted connecting leg 2, and by oil filler point 3 to the gap-fill electric power fat between connecting leg 2 and aluminium alloy stranded conductor wire 5;
Then, connecting leg 2 and aluminium alloy stranded conductor wire 5 are crimped by hydraulic pressure and is integrated, the fixture 4 at connecting leg 2 mouth of pipe place is closely engaged with aluminium alloy stranded conductor wire 5, not only increase the bonding streng to aluminium alloy stranded conductor wire 5, also improve the seal of the cavity formed between aluminium alloy stranded conductor wire 5 and connecting leg 2 simultaneously, avoid the immersion of the excessive and outside rainwater of electric power fat in cavity and make strain clamp impaired;
Finally, the doubly-linked plate of conduction wire clamp 7 one end of doubly-linked plate structure to be inserted respectively in the groove of drainage plate 6 and fastening by bolt 8, in the hollow circular tube of conduction wire clamp 7 other end, connect drainage thread; Simultaneously by oil filler point 3 capping shutoff; O-ring seal is set between capping and oil filler point 3, improves sealing property.
Embodiment 1
Strain clamp aluminium alloy forging is integrated, oil filler point 3 is provided with at draw ring 1 and connecting leg 2 sidewall of connecting leg 2 junction, the inwall at connecting leg 2 mouth of pipe place is provided with along its axis direction the fixture 4 that monotonous helical shape cross section is taper, and its drift angle is 30 °, pulls out slightly in connecting leg 2 mouth of pipe arranged outside.The annulus of drainage plate 6 to be enclosed within connecting leg 2 and welding is connected as a single entity, aluminium alloy stranded conductor wire 5 is inserted in connecting leg 2, and by oil filler point 3 to the gap-fill electric power fat between connecting leg 2 and aluminium alloy stranded conductor wire 5, then be integrated by hydraulic pressure crimping, the drift angle of fixture 4 is closely engaged with aluminium alloy stranded conductor wire 5, make the cavity after strain clamp and conductor compression jointing fully airtight, finally the doubly-linked plate of the conduction wire clamp 7 after crimping drainage thread is inserted in the groove of drainage plate 6 also fastening with bolt 8.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; those of ordinary skill in the field are to be understood that; can modify to the specific embodiment of the present invention with reference to above-described embodiment or equivalent to replace, these do not depart from any amendment of spirit and scope of the invention or equivalently to replace within the claims that all awaits the reply in application.
Claims (10)
1. the forging integral type oiling strain clamp for aluminium alloy stranded conductor wire, described strain clamp is arranged on overhead transmission line terminal, for anchoring wire, and keep its electrically, mechanical performance, it is characterized in that: described strain clamp comprises draw ring (1), connecting leg (2) and conduction wire clamp (7); Described connecting leg (2) is one-body molded vertically with draw ring (1), and described connecting leg (2) one end inner and outer wall arranges fixture (4) respectively and pulls out slightly; Be positioned at described connecting leg (2) and be provided with oil filler point (3) with described connecting leg (2) sidewall of draw ring (1) junction.
2., as claimed in claim 1 for the forging integral type oiling strain clamp of aluminium alloy stranded conductor wire, it is characterized in that, described draw ring (1) and connecting leg (2) are for aluminum alloy forged one-body molded.
3. as claimed in claim 1 for the forging integral type oiling strain clamp of aluminium alloy stranded conductor wire, it is characterized in that, described fixture (4) is ring-type or monotonous helical shape or staggered form double helix shape, and arranges along described connecting leg (2) axis direction.
4., as claimed in claim 3 for the forging integral type oiling strain clamp of aluminium alloy stranded conductor wire, it is characterized in that, the cross section of described fixture (4) is arc or taper.
5., as claimed in claim 4 for the forging integral type oiling strain clamp of aluminium alloy stranded conductor wire, it is characterized in that, the cross section of described fixture (4) is taper, and its drift angle is 15 ° ~ 30 °.
6. as claimed in claim 1 for the forging integral type oiling strain clamp of aluminium alloy stranded conductor wire, it is characterized in that, described connecting leg (2) outer wall arranges drainage plate (6), and described drainage plate (6) is connected with conduction wire clamp (7).
7. as claimed in claim 6 for the forging integral type oiling strain clamp of aluminium alloy stranded conductor wire, it is characterized in that, described drainage plate (6) one end is provided with annulus, described annulus welding or bonding or be crimped on the outer wall of described connecting leg (2); The plate face of the other end is arranged with the rectangular channel to its inner recess.
8. as claimed in claim 7 for the forging integral type oiling strain clamp of aluminium alloy stranded conductor wire, it is characterized in that, described conduction wire clamp (7) one end is provided with the doubly-linked plate matched with groove, and described doubly-linked plate to be inserted respectively in described groove and is fixedly connected with drainage plate (6) by bolt (8); The other end of described conduction wire clamp (7) arranges hollow circular tube, arranges drainage thread in described hollow circular tube.
9. as claimed in claim 1 for the forging integral type oiling strain clamp of aluminium alloy stranded conductor wire, it is characterized in that, the wire be arranged in described connecting leg (2) is aluminium alloy stranded conductor wire (5), and the gap between described connecting leg (2) and aluminium alloy stranded conductor wire (5) arranges electric power fat by oil filler point (3); Described connecting leg (2) and aluminium alloy stranded conductor wire (5) are crimped by hydraulic pressure and are integrated.
10. the forging integral type oiling strain clamp for aluminium alloy stranded conductor wire as described in claim arbitrary in claim 1 ~ 9, it is characterized in that, described oil filler point (3) is provided with capping, arranges O-ring seal between described capping and oil filler point (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410602130.2A CN104348123A (en) | 2014-10-31 | 2014-10-31 | Forging integrated type oiling strain clamp for aluminum alloy stranded wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410602130.2A CN104348123A (en) | 2014-10-31 | 2014-10-31 | Forging integrated type oiling strain clamp for aluminum alloy stranded wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104348123A true CN104348123A (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410602130.2A Pending CN104348123A (en) | 2014-10-31 | 2014-10-31 | Forging integrated type oiling strain clamp for aluminum alloy stranded wire |
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| Country | Link |
|---|---|
| CN (1) | CN104348123A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470891A (en) * | 2015-12-08 | 2016-04-06 | 中国电力科学研究院 | Horizontal anti-freezing strain clamp with hydraulic combined dual-plate-type drainage plate |
| CN105470890A (en) * | 2015-12-08 | 2016-04-06 | 中国电力科学研究院 | Crimped strain clamp |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3256774B2 (en) * | 1995-12-20 | 2002-02-12 | 日本カタン株式会社 | Tensioning method for overhead power transmission lines, tension insulator device for multiconductor and bolt type tension clamp used in this tensioning method |
| CN201672150U (en) * | 2010-06-12 | 2010-12-15 | 董文春 | Medical pipeline positioner |
| CN102237660A (en) * | 2011-06-28 | 2011-11-09 | 广州鑫源恒业电力线路器材有限公司 | Strain clamp of aluminum alloy core aluminum stranded wire |
| CN203415931U (en) * | 2013-09-11 | 2014-01-29 | 国家电网公司 | Anti-water-accumulation strain clamp |
-
2014
- 2014-10-31 CN CN201410602130.2A patent/CN104348123A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3256774B2 (en) * | 1995-12-20 | 2002-02-12 | 日本カタン株式会社 | Tensioning method for overhead power transmission lines, tension insulator device for multiconductor and bolt type tension clamp used in this tensioning method |
| CN201672150U (en) * | 2010-06-12 | 2010-12-15 | 董文春 | Medical pipeline positioner |
| CN102237660A (en) * | 2011-06-28 | 2011-11-09 | 广州鑫源恒业电力线路器材有限公司 | Strain clamp of aluminum alloy core aluminum stranded wire |
| CN203415931U (en) * | 2013-09-11 | 2014-01-29 | 国家电网公司 | Anti-water-accumulation strain clamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470891A (en) * | 2015-12-08 | 2016-04-06 | 中国电力科学研究院 | Horizontal anti-freezing strain clamp with hydraulic combined dual-plate-type drainage plate |
| CN105470890A (en) * | 2015-12-08 | 2016-04-06 | 中国电力科学研究院 | Crimped strain clamp |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150211 |
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| RJ01 | Rejection of invention patent application after publication |