CN201742058U - Large-section wire tension-resisting wire clamp - Google Patents
Large-section wire tension-resisting wire clamp Download PDFInfo
- Publication number
- CN201742058U CN201742058U CN2010202724787U CN201020272478U CN201742058U CN 201742058 U CN201742058 U CN 201742058U CN 2010202724787 U CN2010202724787 U CN 2010202724787U CN 201020272478 U CN201020272478 U CN 201020272478U CN 201742058 U CN201742058 U CN 201742058U
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- connecting pipe
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- tension
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Abstract
The utility model discloses a large-section wire tension-resisting wire clamp in an ultrahigh voltage transmission line of a power system. The tension-resisting wire clamp is provided with a daughter pressing and connecting pipe and a mother pressing and connecting pipe, as well as steel anchors at a front-end ring-turn groove and a rear-end ring-turn groove correspondingly on a step part, and double pressing and connection is carried out on a steel anchor with a wire steel core and a wire inner layer as well as the steel anchor with a wire outer layer and the daughter pressing and connecting pipe respectively at the front-end ring-turn groove and the rear-end ring-turn groove of the steel anchor through the daughter pressing and connecting pipe and the mother pressing and connecting pipe.. The large-section wire tension-resisting wire clamp utilizes the ring-turn grooves at the two parts of the anchor steel and adopts the double pressing and connection on the daughter pressing and connecting pipe and the mother pressing and connecting pipe, leads the daughter pressing and connecting pipe and the mother pressing and connecting pipe to respectively bear the tension of the aluminium wire, and leads the stressing to be more reasonable, one set of tension-resisting wire clamp plays a role in a large set of tension-resisting wire clamp and a small set of tension-resisting wire clamp, thus guaranteeing the whole mechanical performance of the pressing connection of the tension-resisting wire clamp and the wire, and guaranteeing the safety and reliability of running. The large-section wire tension-resisting wire clamp has the advantages of simple structure, reasonable design, reliable performance, and is economical and practical and suitable for promotion.
Description
Technical field: the utility model relates to a kind of used for transmission line strain clamp, is the strain clamp of using in electric power system ultra high voltage large-section lead transmission line specifically.
Background technology: along with greatly developing of China's electric utility, a collection of UHV transmission line engineering begins to build, because electric pressure height, fail safe, reliability and economy to the circuit operation are all had higher requirement, and large-section lead is widely used in UHV transmission line because of its characteristic.At present, the general method of falling to press that adopts of the compression bonding method of large-section lead strain clamp mainly is to have influence on bonding strength in order to prevent in the malleation process that lead pine strand (playing cage) is excessive.But, in the process of falling the pressure, because the extension of aluminum pipe and lead, need stay certain clearance between the ring and between the aluminum conductor of stripping layer and steel anchor front end (behind the crimping steel core) mouth of pipe behind the steel anchor at aluminum pipe, if the distance control bad (too short) in gap in the crimping process, causes " pressing surplus " stress with steel anchor steel core extrusion fracture owing to the elongation of aluminum steel is excessive relatively, thereby reduce the bonding strength of strain clamp and lead, make the fail safe of transmission line and reliability can not get guaranteeing.
Summary of the invention: the purpose of this utility model provides the large-section lead strain clamp that a kind of ultra high voltage large-section lead transmission line uses, mainly be to have hidden danger of quality, thereby improve the problem of the security reliability of ultra high voltage large-section lead transmission line operation in order to overcome existing ultra high voltage large-section lead transmission line wire and strain clamp crimping.
Scheme of the present utility model is as described below: this utility model comprises steel anchor, primary and secondary aluminium hydraulic pressed connecting pipe, lead steel core, lead and drainage plate, mainly be by the corresponding steel anchor that is provided with forward and backward end ring circle groove is set on son, female two aluminium hydraulic pressed connecting pipes and the step portion, and respectively steel anchor and lead steel core and lead internal layer, steel anchor and wire external layer and sub-aluminium hydraulic pressed connecting pipe carried out through son, female two aluminium hydraulic pressed connecting pipes respectively at the forward and backward end ring circle of steel anchor groove that dual crimping realizes.
Main feature of the present utility model is:
1) method of employing normal bonding has guaranteed crimp quality;
2) adopt son, female aluminium hydraulic pressed connecting pipe to carry out dual crimping, make son, female aluminium hydraulic pressed connecting pipe bear the pulling force of lead aluminum steel respectively, make stressed rationally, performance is better;
3) strain insulator steel anchor has two places ring circle groove, links to each other with son, female aluminium hydraulic pressed connecting pipe crimping respectively, and a cover strain clamp has played the effect of size two cover strain clamps, has guaranteed the overall mechanical properties that strain clamp links to each other with conductor compression jointing.
4) can prevent effectively in the malleation process that lead pine strand (playing cage) is excessive and have influence on bonding strength, can avoid again in the process of falling the pressure that the improper elongation that causes is excessive relatively to cause " pressing surplus " stress that the situation of steel anchor steel core extrusion fracture is taken place because of controlling, significantly improve the security reliability of ultra high voltage large-section lead transmission line operation.
5) this strain clamp have simple in structure, reasonable in design, dependable performance, economical and practical, be fit to advantage such as popularization.
Description of drawings:
Fig. 1 is a steel anchor structure schematic diagram of the present utility model;
Fig. 2 is the stripping layer structural representation of the utility model crimping lead;
Fig. 3 is the crimping schematic diagram of steel anchor of the present utility model and lead steel core;
Fig. 4 is sub-aluminium hydraulic pressed connecting pipe of the present utility model and steel anchor and conductor compression jointing schematic diagram;
Fig. 5 is an overall structure schematic diagram of the present utility model;
Fig. 6 is the utility model user mode schematic diagram.
Embodiment: by Fig. 1-large-section lead strain clamp shown in Figure 6 is a kind of novel strain clamp of large-section lead that designs for the electric power system UHV transmission line specially.It mainly is by the corresponding steel anchor 5 that is provided with forward and backward end ring circle groove 3,4 is set on son, female two aluminium hydraulic pressed connecting pipes 1,2 and the step portion, and through sub-aluminium hydraulic pressed connecting pipe 1 steel anchor 5 and lead steel core 6 and lead internal layer 7 is carried out crimping at preceding end ring circle groove 3 places of steel anchor 5.And through female aluminium hydraulic pressed connecting pipe 2 steel anchor and wire external layer 8 and sub-aluminium hydraulic pressed connecting pipe 1 are carried out crimping again at back end ring circle groove 4 places of steel anchor 5.At the also fixedly connected drainage plate 9 in the outside of female aluminium hydraulic pressed connecting pipe 2.Undertaken by following method of operation during installation:
(1) to lead stripping layer;
The large-section lead aluminum steel divides four layers, in steel core 6 is arranged, earlier peel off wire external layer 8 and face skin by certain distance, the guiding line end is moved predetermined distance and is peelled off and face internal layer and lead internal layer 7 again, exposes steel core 6, makes lead internal layer 7 and wire external layer 8 form step-like.
(2) put on female aluminium hydraulic pressed connecting pipe 2, sub-aluminium hydraulic pressed connecting pipe 1, steel anchor 5, carry out the crimping of steel anchor 5;
Put on female aluminium hydraulic pressed connecting pipe 2, surpass the outermost layer of strip off lead, put on sub-aluminium hydraulic pressed connecting pipe 1, be enclosed within above the lead internal layer 7 of being peelled off wire external layer 8, put on steel anchor 5, pursue mold pressing to end ring circle groove 3 10mm places before steel anchor 5 with the steel pressing mold.
(3) crimping of sub-aluminium hydraulic pressed connecting pipe;
Retract sub-aluminium hydraulic pressed connecting pipe 1, make sub-aluminium hydraulic pressed connecting pipe 1 surpass steel anchor 5 preceding end ring circle grooves 3, pursue mold pressing to sub-aluminium hydraulic pressed connecting pipe 1 end with little aluminium pressing mold.
(4) crimping of female aluminium hydraulic pressed connecting pipe;
Retract female aluminium hydraulic pressed connecting pipe 2, the mouth of pipe is encircled about the 10mm of end apart from steel anchor 5 backs, female aluminium hydraulic pressed connecting pipe 2 is crimped on the steel anchor 5 back end ring circle grooves 4, then, cross drainage plate 9, can finish by mold pressing to female aluminium hydraulic pressed connecting pipe 2 ends with big aluminium pressing mold from female aluminium hydraulic pressed connecting pipe 2 line pressure guiding line sides.
Claims (1)
1. large-section lead strain clamp, comprise steel anchor (5), primary and secondary aluminium hydraulic pressed connecting pipe (1,2), lead steel core (6), lead internal layer (7), wire external layer (8) and drainage plate (8), it is characterized in that: this strain clamp is provided with son, female two aluminium hydraulic pressed connecting pipes (1,2) and before correspondence is provided with on the step portion, back end ring circle groove (3,4) steel anchor (5), and preceding at steel anchor (5), back end ring circle groove (3,4) locate respectively through son, female two aluminium hydraulic pressed connecting pipes (1,2) with steel anchor (5) and lead steel core (6) and lead internal layer (7), steel anchor (5) carries out dual crimping with wire external layer (8) and sub-aluminium hydraulic pressed connecting pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202724787U CN201742058U (en) | 2010-07-20 | 2010-07-20 | Large-section wire tension-resisting wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202724787U CN201742058U (en) | 2010-07-20 | 2010-07-20 | Large-section wire tension-resisting wire clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201742058U true CN201742058U (en) | 2011-02-09 |
Family
ID=43557335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202724787U Expired - Fee Related CN201742058U (en) | 2010-07-20 | 2010-07-20 | Large-section wire tension-resisting wire clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201742058U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326308A (en) * | 2013-07-16 | 2013-09-25 | 国家电网公司 | Splicing sleeve |
| CN105305350A (en) * | 2015-11-18 | 2016-02-03 | 江东金具设备有限公司 | Long-span and large-section tension clamp for lead |
| CN106451287A (en) * | 2016-09-09 | 2017-02-22 | 江东金具设备有限公司 | Novel strain clamp for large-section wire |
| CN110541910A (en) * | 2019-08-15 | 2019-12-06 | 江苏双汇电力发展股份有限公司 | adjustable crimping type stay wire hardware fitting and crimping method of stay wire hardware fitting and stay wire |
-
2010
- 2010-07-20 CN CN2010202724787U patent/CN201742058U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326308A (en) * | 2013-07-16 | 2013-09-25 | 国家电网公司 | Splicing sleeve |
| CN105305350A (en) * | 2015-11-18 | 2016-02-03 | 江东金具设备有限公司 | Long-span and large-section tension clamp for lead |
| CN105305350B (en) * | 2015-11-18 | 2018-03-09 | 江东金具设备有限公司 | A kind of Great span and large-section lead strain insulator fixture |
| CN106451287A (en) * | 2016-09-09 | 2017-02-22 | 江东金具设备有限公司 | Novel strain clamp for large-section wire |
| CN110541910A (en) * | 2019-08-15 | 2019-12-06 | 江苏双汇电力发展股份有限公司 | adjustable crimping type stay wire hardware fitting and crimping method of stay wire hardware fitting and stay wire |
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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: 20110209 Termination date: 20180720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |