CN102545121A - Method for connecting hydraulic tension resistant wire clip with lead - Google Patents
Method for connecting hydraulic tension resistant wire clip with lead Download PDFInfo
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- CN102545121A CN102545121A CN2012100018190A CN201210001819A CN102545121A CN 102545121 A CN102545121 A CN 102545121A CN 2012100018190 A CN2012100018190 A CN 2012100018190A CN 201210001819 A CN201210001819 A CN 201210001819A CN 102545121 A CN102545121 A CN 102545121A
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- strain clamp
- lead
- steel anchor
- aluminum pipe
- crimping
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Abstract
The invention provides a method for connecting a hydraulic tension resistant wire clip with a lead; the tension resistant wire clip comprises tension resistant wire clip aluminum tubes and a tension resistant wire clip steel anchor; the method is characterized by comprising the following steps that: (1) a section of outer side strand of the connecting end of the lead is stripped, and an inner core is exposed; (2) the tension resistant wire clip steel anchor is arranged on the outer side of the inner core after the strand on the outer side of the connecting end of the lead is stripped; (3) the tension resistant wire clip steel anchor is in compression joint with the inner core after the strand on the outer side of the lead is stripped; (4) the tension resistant wire clip aluminum tubes are arranged on the outer sides of the lead and the tension resistant wire clip steel anchor; and (5) the tension resistant wire clip aluminum tubes are sequentially compression jointed from the non-connecting end side of the lead to the middle part, skip a non-pressure area and are pressed to the connecting end side of the lead. The invention provides the method for connecting the hydraulic tension resistant wire clip with the lead, so that bulk strands which are produced by the lead when in tension resistant wire clip compression jointing can be reduced, and the hydraulic construction quality is improved.
Description
Technical field
The present invention relates to transmission line interconnection technique field, specifically relate to the method that a kind of hydraulic strain clamp connects lead.
Background technology
Conductor strain clamp is that lead is connected the gold utensil on the strain insulator string, and strain clamp directly cooperates with lead to be installed and transmission mechanical loading and electric load, is important gold utensil in the overhead transmission line.Strain clamp is according to the difference that connects pattern, and bolt type, pincers-pressed type, fluid pressure type, detonation pressure formula, wedge-type, several types such as preformed are arranged usually.
Most popular lead is a steel reinforced aluminium conductor in the overhead transmission line; Steel reinforced aluminium conductor is that the single or multiple lift aluminum steel is stranded in the outer lead of galvanized steel heart yearn; More conductor strain clamp adopts the technology of hydraulic pressure to be connected with lead and transmits mechanics and mechanical load, and steel reinforced aluminium conductor is made up of aluminium crimping aluminum pipe and steel anchor two parts with the hydraulic strain clamp, and aluminum pipe is used for partly being connected with the aluminium stranded conductor of steel reinforced aluminium conductor; The steel anchor is used for partly being connected with the steel core of steel reinforced aluminium conductor; The both is through under pressure, producing plastic deformation, thus respectively with twisted wire and steel core be combined into as a whole, simultaneously; Aluminum pipe is connected the root of steel anchor through pressure, makes whole strain clamp and steel reinforced aluminium conductor link together.Traditional strain clamp hydraulic pressure technology crimping direction when the crimping aluminum pipe is from strain clamp middle part and connects to the side pressure of the aluminum pipe mouth of pipe, and the concrete strain clamp aluminum pipe precedence diagram of exerting pressure is as shown in Figure 1, in hydraulic construction; The aluminum steel modular ratio steel core of lead 1 is little yielding; And aluminum steel is positioned at the steel core skin, and aluminum steel ratio of elongation steel core is much bigger, forms as press the situation that forms twin drum shape behind the plastic metal object pressurized that grows tall; Forming very big relative displacement after strain clamp steel anchor 2 and 3 pairs of lead 1 crimping of strain clamp aluminum pipe between steel core and the aluminium thigh; Owing to the relation of relative position, outer aluminum steel and internal layer aluminum steel also can form bigger relative displacement simultaneously, and relative shift is accumulated at the strain clamp mouth of pipe; Produce the phenomenon of lead pine thigh easily in strain clamp aluminum pipe exit, had influence on construction quality.
Summary of the invention
To the above-mentioned defective that prior art exists, the purpose of this invention is to provide the method that a kind of hydraulic strain clamp connects lead, the broken lot that lead produces when reducing the strain clamp crimping improves the hydraulic construction quality.A kind of hydraulic strain clamp provided by the invention connects the method for lead, and said strain clamp comprises strain clamp aluminum pipe and strain clamp steel anchor, and the step that said hydraulic strain clamp connects the method for lead is:
(1) divests one section of wire connecting ends outside twisted wire, expose inner core;
(2) strain clamp steel anchor is arranged on the inner core outside after wire connecting ends divests outside twisted wire;
(3) inner core outside strain clamp steel anchor crimping lead divests behind the twisted wire;
(4) the strain clamp aluminum pipe is arranged on the outside of lead and strain clamp steel anchor;
(5) the strain clamp aluminum pipe is from the middle part crimping successively of lead front of motor side direction, and skipping not, nip is depressed into the wire connecting ends side always.
In first optimal technical scheme provided by the invention: the relative shift and the pore volume sum of inner core and the outside twisted wire when steel pipe elongation, crimping when the length that divests the said outside twisted wire of said wire connecting ends in the above-mentioned steps (1) is the pressure contact portion bit length of strain clamp steel anchor, crimping, said pore volume is the 8-12 millimeter.
In second optimal technical scheme provided by the invention: above-mentioned steps (2) also comprises: the strain clamp aluminum pipe is arranged on the outside of lead front of motor, and the part of lead inner core is exposed the mouth of pipe of strain clamp steel anchor.
In the 3rd optimal technical scheme provided by the invention: the order of exerting pressure of the said inner core of strain clamp steel anchor crimping described in the above-mentioned steps (3) is: from the draw ring side direction mouth of pipe side crimping successively of strain clamp steel anchor.
In the 4th optimal technical scheme provided by the invention: the outside that strain clamp aluminum pipe described in the above-mentioned steps (4) is arranged on lead and strain clamp steel anchor is specially: the strain clamp aluminum pipe is arranged on the draw ring place of strain clamp steel anchor, the strain clamp aluminum pipe is moved a segment length to the direction of leaving said draw ring.
In the 5th optimal technical scheme provided by the invention: said strain insulator aluminum pipe moves the crimping elongation that a segment length is said strain clamp aluminum pipe to the direction of leaving said draw ring.
Description of drawings
Fig. 1 is: the precedence diagram of exerting pressure of traditional strain clamp aluminum pipe;
Fig. 2 is: the structural representation of crimp;
Fig. 3 is: the method flow diagram of the embodiment one of the method for a kind of hydraulic strain clamp connection lead provided by the invention;
Fig. 4 is: steel reinforced aluminium conductor provided by the invention divests the sketch map of outside aluminium stranded conductor;
Fig. 5 is: the sketch map that strain clamp steel anchor provided by the invention penetrates;
Fig. 6 is: the precedence diagram of exerting pressure of strain clamp steel anchor provided by the invention;
Fig. 7 is: the sketch map that strain clamp aluminum pipe provided by the invention penetrates;
Fig. 8 is: the precedence diagram of exerting pressure of strain clamp aluminum pipe provided by the invention.
Among the figure: 1, lead 2, strain clamp steel anchor 3, strain clamp aluminum pipe 4, crimp 5, strain insulator aluminum pipe or steel anchor 6, lead or steel core 7, wiring
, the sequence number of exerting pressure.
Embodiment
The method of a kind of hydraulic strain clamp provided by the invention; The hydraulic test that uses comprises hydraulic power unit, crimping binding clip, crimp; Crimp is the two halves up and down of the structure that to form a cross section be positive six squares; Its concrete structure is as shown in Figure 2, and crimp 4 is orthohexagonal structure with the cross section for circular strain insulator aluminum pipe or steel anchor 5 crimping becoming cross section.A kind of hydraulic strain clamp provided by the invention connects in the method for lead; Strain clamp comprises strain clamp aluminum pipe and strain clamp steel anchor; The strain clamp aluminum pipe is used for partly being connected with the outside twisted wire of lead; Strain clamp steel anchor is used for partly being connected with the inner core of lead, and concrete method step is:
S101 divests one section of wire connecting ends outside twisted wire, exposes inner core;
S102 is arranged on the inner core outside after wire connecting ends divests outside twisted wire with strain clamp steel anchor;
S103, strain clamp steel anchor crimping lead divest the inner core behind the twisted wire of the outside;
S104 is arranged on the strain clamp aluminum pipe in the outside of lead and strain clamp steel anchor;
S105, the strain clamp aluminum pipe is from the middle part crimping successively of lead front of motor side direction, and skipping not, nip is depressed into the wire connecting ends side always.
The method that a kind of hydraulic strain clamp provided by the invention connects lead can be used the strain clamp crimping of multiple overhead stranded conductor lines such as transmission line steel reinforced aluminium conductor, aluminium bag core aluminum stranded wire, aluminium bag invar core aluminium alloy stranded conductor, steel core aluminium alloy stranded conductor, aluminium bag core aluminium alloy stranded conductor, carbon fiber composite core wire, also be applicable to aluminium stranded conductor, aluminium alloy stranded conductor, steel strand wire, aluminum-cladding stranded wire material of the same race built on stiltsly lead, the strain clamp crimping of ground wire.
Embodiment one:
The embodiment one of the method for a kind of hydraulic strain clamp connection lead provided by the invention connects the method for steel reinforced aluminium conductor for the hydraulic strain clamp; The lead that splicing sleeve continues is a steel reinforced aluminium conductor; Steel reinforced aluminium conductor outside twisted wire is an aluminium stranded conductor; Inner core is a steel core, and the connecting method flow process is as shown in Figure 3, and concrete steps are following:
Step S301 divests one section aluminium stranded conductor of steel reinforced aluminium conductor link, exposes steel core.
It is as shown in Figure 4 that lead divests the sketch map of aluminum steel, inwardly measures certain-length L from the link of lead 1, fastens lead 1 with wiring 7, cuts off aluminium stranded conductor measuring the length L place, and exposing lead 1 inner length is the steel core of measuring length L.Measuring length L is specially:
Relative shift+the pore volume of steel core and aluminum steel during steel pipe elongation when measuring the pressure contact portion bit length of length L=strain clamp steel anchor+crimping+compression joint technique crimping aluminum pipe, wherein pore volume is generally 10 millimeters.
Step S302 is arranged on the steel core outside after wire connecting ends divests aluminium stranded conductor with strain clamp steel anchor.
The sketch map that strain clamp steel anchor penetrates is as shown in Figure 5; Can know by Fig. 5; Strain clamp steel anchor 2 penetrates the steel core outside that is arranged on after lead 1 link divests aluminium stranded conductor; Strain clamp aluminum pipe 3 penetrates the outside of lead 1 front of motor, and the part of lead 1 steel core is exposed the mouth of pipe of strain clamp steel anchor 2.
Step S303, strain clamp steel anchor crimping lead divests the steel core behind the aluminium stranded conductor.
The precedence diagram of exerting pressure of strain clamp steel anchor is as shown in Figure 6, can be known by Fig. 6, and the steel core of strain clamp steel anchor 2 crimping leads 1 is the draw ring side direction mouth of pipe side crimping successively from strain clamp steel anchor 2.
Step S304 is arranged on the strain clamp aluminum pipe in the outside of lead and strain clamp steel anchor.
The sketch map that the strain clamp aluminum pipe penetrates is as shown in Figure 7; Can know by Fig. 7; After 2 crimping of strain clamp steel anchor are accomplished; Strain clamp aluminum pipe 3 penetrated be arranged on extreme position (being the draw ring place of strain clamp steel anchor 2) and shown in Fig. 7 (a), again strain clamp aluminum pipe 3 moved a segment length L1 to the direction of leaving said draw ring, shown in Fig. 7 (b).The crimping elongation of aluminum pipe when wherein L1 is the crimping aluminum pipe of reserving.
Step S305, the strain clamp aluminum pipe is from the middle part crimping successively of lead front of motor side direction, and skipping not, nip is depressed into the wire connecting ends side always.
The order of exerting pressure of strain clamp aluminum pipe is as shown in Figure 8; First is embossed in the aluminum pipe exit of strain clamp aluminum pipe taper end; Connect from the side pressure of lead front of motor side direction link; After the groove crimping of strain clamp steel anchor is accomplished, must whether all be pushed down with the groove position of other method check strain clamp steel anchor by aluminum pipe.
Above embodiment is only in order to technical scheme of the present invention to be described but not to its restriction; Although the present invention has been carried out detailed explanation with reference to the foregoing description; The those of ordinary skill in said field is to be understood that: still can specific embodiments of the invention make amendment or replacement on an equal basis; And do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. a hydraulic strain clamp connects the method for lead, and said strain clamp comprises strain clamp aluminum pipe and strain clamp steel anchor, it is characterized in that, the method for said hydraulic strain clamp connection lead comprises the steps:
(1) divests one section of wire connecting ends outside twisted wire, expose inner core;
(2) strain clamp steel anchor is arranged on the inner core outside after wire connecting ends divests outside twisted wire;
(3) inner core outside strain clamp steel anchor crimping lead divests behind the twisted wire;
(4) the strain clamp aluminum pipe is arranged on the outside of lead and strain clamp steel anchor;
(5) the strain clamp aluminum pipe is from the middle part crimping successively of lead front of motor side direction, and skipping not, nip is depressed into the wire connecting ends side always.
2. the method that connects lead according to a kind of hydraulic strain clamp of claim 1; The relative shift and the pore volume sum of inner core and the outside twisted wire when steel pipe elongation, crimping when the length that it is characterized in that divesting in the above-mentioned steps (1) the said outside twisted wire of said wire connecting ends is the pressure contact portion bit length of strain clamp steel anchor, crimping, said pore volume is the 8-12 millimeter.
3. connect the method for lead according to a kind of hydraulic strain clamp of claim 1, it is characterized in that above-mentioned steps (2) also comprises: the strain clamp aluminum pipe is arranged on the outside of lead front of motor, and the part of lead inner core is exposed the mouth of pipe of strain clamp steel anchor.
4. the method that connects lead according to a kind of hydraulic strain clamp of claim 1 is characterized in that the order of exerting pressure of the said inner core of strain clamp steel anchor crimping described in the above-mentioned steps (3) is: from the draw ring side direction mouth of pipe side crimping successively of strain clamp steel anchor.
5. the method that connects lead according to a kind of hydraulic strain clamp of claim 1; It is characterized in that the outside that strain clamp aluminum pipe described in the above-mentioned steps (4) is arranged on lead and strain clamp steel anchor is specially: the strain clamp aluminum pipe is arranged on the draw ring place of strain clamp steel anchor, the strain clamp aluminum pipe is moved a segment length to the direction of leaving said draw ring.
6. the method that connects according to a kind of hydraulic strain clamp of claim 5 is characterized in that said strain insulator aluminum pipe moves the crimping elongation that a segment length is said strain clamp aluminum pipe to the direction of leaving said draw ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100018190A CN102545121A (en) | 2012-01-05 | 2012-01-05 | Method for connecting hydraulic tension resistant wire clip with lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100018190A CN102545121A (en) | 2012-01-05 | 2012-01-05 | Method for connecting hydraulic tension resistant wire clip with lead |
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| Publication Number | Publication Date |
|---|---|
| CN102545121A true CN102545121A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100018190A Pending CN102545121A (en) | 2012-01-05 | 2012-01-05 | Method for connecting hydraulic tension resistant wire clip with lead |
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| Country | Link |
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| CN (1) | CN102545121A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221904A (en) * | 2017-05-28 | 2017-09-29 | 国网山东省电力公司寿光市供电公司 | A kind of method of shaped conductor anti-dropout connection |
| CN111337344A (en) * | 2019-11-07 | 2020-06-26 | 国家电网有限公司 | Transmission conductor strain clamp tensile strength analysis method based on X-ray detection |
| CN112864996A (en) * | 2020-12-31 | 2021-05-28 | 河南四达电力设备股份有限公司 | Take temperature monitoring function's intelligent wedge strain clamp |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201336537Y (en) * | 2008-12-09 | 2009-10-28 | 中国电力科学研究院 | Strain clamp for composite lead |
| CN101719647A (en) * | 2009-12-21 | 2010-06-02 | 中国电力科学研究院 | Strain clamp for large-section lead |
| CN101752816A (en) * | 2009-12-21 | 2010-06-23 | 中国电力科学研究院 | Dead-end clamp for supporting expanded diameter conductors |
-
2012
- 2012-01-05 CN CN2012100018190A patent/CN102545121A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201336537Y (en) * | 2008-12-09 | 2009-10-28 | 中国电力科学研究院 | Strain clamp for composite lead |
| CN101719647A (en) * | 2009-12-21 | 2010-06-02 | 中国电力科学研究院 | Strain clamp for large-section lead |
| CN101752816A (en) * | 2009-12-21 | 2010-06-23 | 中国电力科学研究院 | Dead-end clamp for supporting expanded diameter conductors |
Non-Patent Citations (1)
| Title |
|---|
| 朱艳君 等: "大截面导线压接产生散股原因分析及消除措施", 《电力建设》, vol. 31, no. 4, 30 April 2010 (2010-04-30) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221904A (en) * | 2017-05-28 | 2017-09-29 | 国网山东省电力公司寿光市供电公司 | A kind of method of shaped conductor anti-dropout connection |
| CN111337344A (en) * | 2019-11-07 | 2020-06-26 | 国家电网有限公司 | Transmission conductor strain clamp tensile strength analysis method based on X-ray detection |
| CN112864996A (en) * | 2020-12-31 | 2021-05-28 | 河南四达电力设备股份有限公司 | Take temperature monitoring function's intelligent wedge strain clamp |
| CN112864996B (en) * | 2020-12-31 | 2022-03-29 | 河南四达电力设备股份有限公司 | Take temperature monitoring function's intelligent wedge strain clamp |
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| PB01 | Publication | ||
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| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20130627 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20130627 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant after: China Electric Power Research Institute Applicant after: State Grid Corporation of China Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant before: China Electric Power Research Institute |
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Application publication date: 20120704 |