CN105181443A - Horizontal tension tester's fixture for round wire concentric-lay-stranded overhead conductors - Google Patents
Horizontal tension tester's fixture for round wire concentric-lay-stranded overhead conductors Download PDFInfo
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- CN105181443A CN105181443A CN201510418925.2A CN201510418925A CN105181443A CN 105181443 A CN105181443 A CN 105181443A CN 201510418925 A CN201510418925 A CN 201510418925A CN 105181443 A CN105181443 A CN 105181443A
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- pair
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- slippage slot
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Abstract
The invention relates to a horizontal tension tester's fixture for round wire concentric-lay-stranded overhead conductors. The fixture of the invention comprises a pair of clamping mechanisms with consistent specification. Each clamping mechanism comprises a pair of fixture blocks and a pair of fixture shells. The pair of fixture blocks is formed by cooperation of two clamping blocks with their jaws being corresponding to each other. The two clamping blocks are respectively provided with groove-like jaws used for clamping a round wire concentric-lay-stranded overhead conductor. The jaw end of the pair of fixture blocks is a clamping end, and the other corresponding end is a positioning end. The pair of fixture shells is composed of two correspondingly-matched fixed bodies which are respectively equipped with fixture block grooves. The pair of fixture blocks is correspondingly positioned inside the fixture block grooves of the pair of fixture shells, and the clamping end of the pair of fixture blocks is positioned outside the pair of fixture shells. The pair of fixture shells on the periphery of the fixture block grooves is fixedly connected through threaded connectors. When the fixture is in use, the pair of clamping mechanisms respectively clamps two ends of the overhead conductor and realizes self-locking when stressing. By replacing different sizes of the fixture blocks, the fixture is suitable for overhead conductors with different sectional areas.
Description
Technical field
The invention belongs to the stress-strain detection technique field of round line concentric gallows empty conductor, be specifically related to a kind of fixture being applicable to the round line concentric gallows empty conductor of horizontal tensile testing machine.
By changing the size of jaw, the round line concentric gallows empty conductor that applicable sectional area is different, easy and efficiently.
Background technology
Circle line concentric gallows empty conductor refers to around one or a branch of center core spiral strand last layer or the stranded wire of multilayer single line, and its adjacent layer strand is on the contrary.Circle line concentric gallows empty conductor lays owing to making somebody a mere figurehead, and therefore wire self can bear certain tension force, if the specified stretching resistance of aerial condutor is defective, easily causes line-outage contingency.In addition, aerial condutor has strain to a certain degree under tension, especially when icing, tension force greatly increases, if strain is excessive, the sag of aerial condutor has the possibility exceeding safe range, therefore, the stress-strain testing of aerial condutor is most important.When wire carries out stress-strain curve test, need to clamp sample two ends, the mode of wire clamping comprises casting method, cover platen press, winding method and direct chucking method, direct chucking method has easy-operating characteristic, but traditional chuck general structure is complicated, and weight is comparatively large, when horizontal tensile testing machine uses, self gravity has impact to a certain degree to test findings.
Summary of the invention
The object of the invention is to overcome above shortcomings in prior art, a kind of round line concentric gallows empty conductor fixture for horizontal tensile testing machine little and simple to operate of conducting oneself with dignity is provided.
Concrete technical solution is as follows:
For a round line concentric gallows empty conductor fixture for horizontal tensile testing machine, comprise the clamping device that a pair specification is consistent, often pair of clamping device comprises a pair fixture block and a pair fixture shell; A pair fixture block is coordinated by the grip block that two pieces of jaws are corresponding and forms, and two pieces of grip blocks offers respectively the jaw of the channel-shaped for clamping round line concentric gallows empty conductor; The vice jaw part of a pair fixture block is bare terminal end, and the corresponding other end is positioning end; A pair fixture shell is made up of the fixed body of two pieces of corresponding matching, and two pieces of fixed bodies are respectively equipped with slippage slot; The slippage slot that a pair fixture block is positioned at a pair fixture shell is self-locking state, and the bare terminal end of a pair fixture block is positioned at the outside of a pair fixture shell, is threaded connection part and is fixedly connected with between a pair fixture shell of slippage slot periphery;
During use, a pair clamping device holds the two ends of round line concentric gallows empty conductor respectively.
Described grip block is right-angled trapezium block, and described jaw is positioned on the side right-angle side of grip block, and in through shape; Two pieces of grip blocks coordinate composition isosceles trapezoid block.
The xsect of described jaw is V-arrangement or circular arc.
Described fixed body is rectangular plate-like, the outer end of described slippage slot is positioned at the edge of the length direction side of fixed body, and slippage slot extends in groove-like in the middle part of fixed body, and slippage slot is the large wedge-shaped slot in little the inner, outer end, inside is provided with limited block, and the outer end of slippage slot is positioned at the edge of the side of fixed body; Described a pair fixture block is positioned at the slippage slot of a pair fixture shell, and bare terminal end extends the outside of fixed body, and positioning end contacts with limited block, in self-locking state; The fixed body of the inner of slippage slot offers mounting hole; The dual-side of the Width of fixed body is laid with respectively the connecting hole of more than three.
Advantageous Effects of the present invention embodies in the following areas:
1, fixture of the present invention can realize the clamping of the round line concentric gallows empty conductor to different cross-sectional, and fixture is fastened by bolts, self-locking time afterburning.
2, the present invention is by changing the fixture block of different size jaw, can clamp sectional area 10-1200mm
2round line concentric gallows empty conductor.If use V-type jaw, be applicable to clamp steel strand wires.Circular arc type jaw can increase the contact area of wire and jaw, reduces the probability of wire disconnected stock or broken string in jaw or near jaw, is applicable to the composite conductor of aluminum stranded conductor, steel-cored aluminium strand or other aluminium and steel.
3, by being wound around the thick aluminium foil of 0.1mm or aluminium strip on wire, aluminum stranded conductor can being reduced further, the composite conductor of steel-cored aluminium strand or other aluminium and steel breaks the probability that stock breaks in jaw or near jaw.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is fixture shell mechanism schematic diagram.
Fig. 3 is fixture block structural representation.
Sequence number in upper figure: fixed body 1, grip block 2, circle line concentric gallows empty conductor 3, slippage slot 11, connecting hole (bolt hole) 12, limited block 13, mounting hole (tension tester connects hole) 14, fixed body 15, V-type jaw 21, circular arc type jaw 22.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention is further described.
Embodiment 1
See Fig. 1, a kind of round line concentric gallows empty conductor fixture for horizontal tensile testing machine comprises the consistent clamping device of a pair specification, and often pair of clamping device comprises a pair fixture block and a pair fixture shell.
See Fig. 3, a pair fixture block is coordinated by the grip block 2 that two pieces of jaws are corresponding and forms, the corresponding jaw 21 offering the channel-shaped for clamping round line concentric gallows empty conductor respectively on two pieces of grip blocks, and jaw 21 is V-type jaw; Grip block 2 is right-angled trapezium block, and jaw 21 is positioned on the side right-angle side of grip block 2, and in through shape, two pieces of grip blocks 2 coordinate composition isosceles trapezoid block.The vice jaw part of a pair fixture block is bare terminal end, and the corresponding other end is positioning end.
See Fig. 2, a pair fixture shell is made up of the fixed body 1 of two pieces of corresponding matching, and on the length direction of two pieces of fixed bodies 1, correspondence is provided with slippage slot 11 respectively, and slippage slot 11 is wedge-shaped slot.Fixed body 1 is rectangular plate-like, and the outer end of slippage slot 11 is positioned at the edge of the length direction side of fixed body 1, extends in groove-like in the middle part of fixed body 1, and slippage slot 11 is the large wedge-shaped slot in little the inner, outer end, and inside is provided with limited block 13; A pair fixture block is positioned at the slippage slot 11 of a pair fixture shell, and it is outside that bare terminal end extends fixed body 1, and positioning end contacts with limited block 13, in self-locking state; The fixed body 1 of the inner of slippage slot 11 offers mounting hole 14; On fixed body 1 Width dual-side on uniformly respectively offer five connecting holes 12, be threaded connection part and a pair fixture block be fixed be clamped in a pair fixture shell.
During use, a pair clamping device holds the two ends of round line concentric gallows empty conductor 3 respectively.
For steel gallows empty conductor, first a pair fixture block is put into the slippage slot 11 of a pair fixture shell, in the middle of the V-type jaw two ends of steel gallows empty conductor being put into respectively a pair fixture block, then be threaded connection part a pair fixture shell is fixedly connected with, the two ends of steel gallows empty conductor are clamped.Then, carry out stress-strain test by horizontal tensile testing machine to steel gallows empty conductor, when horizontal tensile testing machine starts reinforcing, fixture realizes self-locking, and steel gallows empty conductor can not slippage from the jaw of fixture block.
When needing the steel strand wires test to different cross-sectional, select according to wire cross-section area the fixture block having dimension V-type jaw.
Embodiment 2
When test aluminium gallows empty conductor, steel-core-aluminium gallows empty conductor or other aluminium and steel composite conductor time, need first to be wound around aluminium foil or aluminium strip at aerial condutor two ends, select the fixture block of the circular arc jaw 22 with dimension, see Fig. 3.Other steps are with embodiment 1.
Claims (4)
1., for a round line concentric gallows empty conductor fixture for horizontal tensile testing machine, it is characterized in that:
Comprise the clamping device that a pair specification is consistent, often pair of clamping device comprises a pair fixture block and a pair fixture shell; A pair fixture block is coordinated by the grip block that two pieces of jaws are corresponding and forms, and two pieces of grip blocks offers respectively the jaw of the channel-shaped for clamping round line concentric gallows empty conductor; The vice jaw part of a pair fixture block is bare terminal end, and the corresponding other end is positioning end; A pair fixture shell is made up of the fixed body of two pieces of corresponding matching, and two pieces of fixed bodies are respectively equipped with slippage slot; The slippage slot that a pair fixture block is positioned at a pair fixture shell is self-locking state, and the bare terminal end of a pair fixture block is positioned at the outside of a pair fixture shell, is threaded connection part and is fixedly connected with between a pair fixture shell of slippage slot periphery;
During use, a pair clamping device holds the two ends of round line concentric gallows empty conductor respectively.
2. a kind of round line concentric gallows empty conductor folder for horizontal tensile testing machine according to claim 1, is characterized in that: described grip block is right-angled trapezium block, and described jaw is positioned on the side right-angle side of grip block, and in through shape; Two pieces of grip blocks coordinate composition isosceles trapezoid block.
3. a kind of round line concentric gallows empty conductor folder for horizontal tensile testing machine according to claim 1 and 2, is characterized in that: the xsect of described jaw is V-arrangement or circular arc.
4. a kind of round line concentric gallows empty conductor folder for horizontal tensile testing machine according to claim 1, it is characterized in that: described fixed body is rectangular plate-like, the outer end of described slippage slot is positioned at the edge of the length direction side of fixed body, slippage slot extends in the middle part of fixed body in groove-like, slippage slot is the large wedge-shaped slot in little the inner, outer end, inside is provided with limited block, and the outer end of slippage slot is positioned at the edge of the side of fixed body; Described a pair fixture block is positioned at the slippage slot of a pair fixture shell, and bare terminal end extends the outside of fixed body, and positioning end contacts with limited block, in self-locking state; The fixed body of the inner of slippage slot offers mounting hole; The dual-side of the Width of fixed body is laid with respectively the connecting hole of more than three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418925.2A CN105181443A (en) | 2015-07-15 | 2015-07-15 | Horizontal tension tester's fixture for round wire concentric-lay-stranded overhead conductors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418925.2A CN105181443A (en) | 2015-07-15 | 2015-07-15 | Horizontal tension tester's fixture for round wire concentric-lay-stranded overhead conductors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105181443A true CN105181443A (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510418925.2A Pending CN105181443A (en) | 2015-07-15 | 2015-07-15 | Horizontal tension tester's fixture for round wire concentric-lay-stranded overhead conductors |
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|---|---|
| CN (1) | CN105181443A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655752A (en) * | 2017-10-19 | 2018-02-02 | 国网新疆电力公司电力科学研究院 | A kind of power transmission tower aluminum stranded conductor tensile test fixture |
| CN108051292A (en) * | 2017-11-30 | 2018-05-18 | 广东省新材料研究所 | A kind of preparation method of small circular plated film sample fixture |
| CN113310790A (en) * | 2020-02-26 | 2021-08-27 | 中国能源建设集团江苏省电力设计院有限公司 | End reinforcing method for bare conductor tensile test |
| CN114505650A (en) * | 2022-03-31 | 2022-05-17 | 公元股份有限公司 | Heat preservation pipe clamp |
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| FR2655423A1 (en) * | 1989-12-06 | 1991-06-07 | Siderurgie Fse Inst Rech | Device for anchoring a wire for a tensile testing machine |
| JPH05332903A (en) * | 1992-05-28 | 1993-12-17 | Toko Tesutakku:Kk | Holding device of test piece in tester |
| CN201497675U (en) * | 2009-08-28 | 2010-06-02 | 江都市金都试验机械厂 | Multifunctional tensile testing fixture |
| CN102323144A (en) * | 2011-05-31 | 2012-01-18 | 河南省煤炭科学研究院有限公司 | Steel wire rope tensile fixture and horizontal steel wire rope tensile testing machine thereof |
| CN103454146A (en) * | 2013-09-03 | 2013-12-18 | 张家港市胜达钢绳有限公司 | Bead wire clamping device and bead wire tension testing system |
| CN203629955U (en) * | 2013-11-28 | 2014-06-04 | 江苏科技大学 | Steel wire rope clamping device |
| CN104089815A (en) * | 2014-06-10 | 2014-10-08 | 吉林大学 | Clamp used for test piece sample in function material microscopic performance in-situ testing |
| CN104568578A (en) * | 2014-12-02 | 2015-04-29 | 江苏武进不锈股份有限公司 | High-temperature tensile fixture for pipes |
| CN204903283U (en) * | 2015-07-15 | 2015-12-23 | 国家电网公司 | A concentric turntable of circle line anchor clamps for hollow wire for horizontal tensile testing machine |
-
2015
- 2015-07-15 CN CN201510418925.2A patent/CN105181443A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2655423A1 (en) * | 1989-12-06 | 1991-06-07 | Siderurgie Fse Inst Rech | Device for anchoring a wire for a tensile testing machine |
| JPH05332903A (en) * | 1992-05-28 | 1993-12-17 | Toko Tesutakku:Kk | Holding device of test piece in tester |
| CN201497675U (en) * | 2009-08-28 | 2010-06-02 | 江都市金都试验机械厂 | Multifunctional tensile testing fixture |
| CN102323144A (en) * | 2011-05-31 | 2012-01-18 | 河南省煤炭科学研究院有限公司 | Steel wire rope tensile fixture and horizontal steel wire rope tensile testing machine thereof |
| CN103454146A (en) * | 2013-09-03 | 2013-12-18 | 张家港市胜达钢绳有限公司 | Bead wire clamping device and bead wire tension testing system |
| CN203629955U (en) * | 2013-11-28 | 2014-06-04 | 江苏科技大学 | Steel wire rope clamping device |
| CN104089815A (en) * | 2014-06-10 | 2014-10-08 | 吉林大学 | Clamp used for test piece sample in function material microscopic performance in-situ testing |
| CN104568578A (en) * | 2014-12-02 | 2015-04-29 | 江苏武进不锈股份有限公司 | High-temperature tensile fixture for pipes |
| CN204903283U (en) * | 2015-07-15 | 2015-12-23 | 国家电网公司 | A concentric turntable of circle line anchor clamps for hollow wire for horizontal tensile testing machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655752A (en) * | 2017-10-19 | 2018-02-02 | 国网新疆电力公司电力科学研究院 | A kind of power transmission tower aluminum stranded conductor tensile test fixture |
| CN108051292A (en) * | 2017-11-30 | 2018-05-18 | 广东省新材料研究所 | A kind of preparation method of small circular plated film sample fixture |
| CN113310790A (en) * | 2020-02-26 | 2021-08-27 | 中国能源建设集团江苏省电力设计院有限公司 | End reinforcing method for bare conductor tensile test |
| CN114505650A (en) * | 2022-03-31 | 2022-05-17 | 公元股份有限公司 | Heat preservation pipe clamp |
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Application publication date: 20151223 |
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