CN103674700A - Pretension testing machine for kilometers long steel wire rope - Google Patents
Pretension testing machine for kilometers long steel wire rope Download PDFInfo
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- CN103674700A CN103674700A CN201310639517.0A CN201310639517A CN103674700A CN 103674700 A CN103674700 A CN 103674700A CN 201310639517 A CN201310639517 A CN 201310639517A CN 103674700 A CN103674700 A CN 103674700A
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- wire rope
- stretching clamp
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Abstract
The invention discloses a pretension testing machine for a kilometers long steel wire rope. The pretension testing machine comprises a pedestal, tensile fixtures and a power device. A fixed tensile fixture is disposed at the left side of the pedestal and a movable tensile fixture is disposed at the right side of the pedestal. A supporting seat is fixed, at the right side of the movable tensile fixture, at the pedestal. The power device is fixed at the right side of the pedestal through evenly arranged jack catches. An output terminal of the right side of the power device is connected to a pressure sensor. The pressure sensor is fixed to a bearing top plate vertically disposed at the right end of the pressure sensor. The two sides of the bearing top plate are connected to the two sides of the movable tensile fixture through symmetrical pull rods. A support is disposed at the bottom of the bearing top plate. The support is provided with sliding grooves and roller chains disposed in the sliding grooves. A plurality of supporting rollers are evenly disposed between the fixed tensile fixture and the movable tensile fixture. 50% of the breaking force of the steel wire rope is applied on the steel wire rope by the pretension testing machine to perform pretension so as to eliminate twisting stress. A phenomenon of not straight tensile caused by sinking due to the self weight is avoided by arranging the supporting rollers.
Description
Technical field
The present invention relates to a kind of wire rope stretcher, be specifically related to the pre-pulling test machine of the long wire rope of a kind of km.
Background technology
If wire rope loose refer to that head of steel wire rope need not seal and prick that steel wire binds and while being free state, strand or steel wire will freely loose off by the reverse direction of twisting.Loose reason is that thigh and the steel wire inside in steel wire exists elastic torsion stress and unrelieved stress.Screw twisted distortion when distorting stress derives from twisting rope strand and steel wire; Unrelieved stress comes from the cold-drawn processing of steel wire.The torsional deflection stress of steel wire can reduce its plasticity and intensity.As the steel wire in triangular strand wire rope (seeing flat-strand rope) is average before strength ratio distortion after screw twisted distortion, reduce by 2.7%, torsion value reduces by 8.3%, and bending value reduces by 18.4%.
The existing elimination of carrying out twist stress by anamorphoser, elimination for the twist stress of the long wire rope of km is and complicated thing, while applying anamorphoser to steel wire or rope strand predeformation, due to repeatedly crooked, may produce the quality that micro-crack affects wire rope, its distortion operation is comparatively complicated.
Summary of the invention
The object of the invention is the problem and shortage for above-mentioned existence, provide the long wire rope of a kind of km pre-pulling test machine.
For achieving the above object, the technical scheme of taking is:
The pre-pulling test machine of the long wire rope of a kind of km, comprise pedestal, stretching clamp and propulsion system, the fixedly stretching clamp that is positioned at left side and the movable stretching clamp that is positioned at right side are installed on pedestal, on the right side pedestal of described movable stretching clamp, be fixed with bearing, bearing right side is installed with propulsion system by uniform claw, the output terminal on the right side of propulsion system is connected with pressure transducer, pressure transducer is fixedly connected with the vertically disposed load top board of its right-hand member, the both sides of load top board are connected with the both sides of movable stretching clamp by symmetrical pull bar, the bottom of load top board is provided with support, support is provided with chute and is placed on the roller chain in chute, fixedly between stretching clamp and movable stretching clamp, be evenly equipped with several carrying rollers.
Described fixedly stretching clamp and movable stretching clamp include base plate, two riser, wedge shape slide plate and grip blocks that are vertically fixed on base plate, the inside surface angle of two described risers is α, and 9 °≤α≤18 °, two symmetrical wedge shape slide plates mate respectively and are fitted on two riser inside surfaces, and the inside surface of this two wedge shapes slide plate is parallel to each other, dovetail groove and coattail strip fit structure by vertical setting between the inside surface of each wedge shape slide plate and grip block link together, and described grip block inner side is provided with the groove of clamping steel wire rope.
Two described vertical riser tops are fixed with web joint, and riser two sides are fixed with stiffening plate.
On the stiffening plate of described movable stretching clamp both sides and load top board, all offer mounting hole, symmetrical two ends, pull bar left and right are equipped with thread segment, and two symmetrical pull bars insert in mounting hole and fixedly mount by being arranged on the unloading nut of mounting hole both sides.
The pedestal of described movable stretching clamp downside is provided with chute, is placed with roller chain in chute.
Described propulsion system are lifting jack or hydraulic cylinder or cylinder.
Described adjacent two idlers pitches are from being 1 ~ 3m.
Described bearing both sides offer the through hole mating with pull bar, to facilitate, support and guiding.
Adopt technique scheme, obtained beneficial effect is:
The present invention is directed to harm and the elimination of the twist stress of wire rope, and the weight situation of the long wire rope of km is carried out, design and innovation to the fixture of pre-pulling test machine and stretching transmission, 50% the power that wire rope is applied to the Fracture Force of wire rope is carried out pre-stretch-draw, to eliminate twist stress, by movable stretching clamp with carrying roller is fixedly set between stretching clamp, to avoid wire rope long, because its deadweight sinks to causing the not straight phenomenon of stretching, reasonable in design of the present invention, work efficiency is high, can carry out in enormous quantities continuity stretching, greatly reduce labour intensity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 be in Fig. 1 A-A to structural representation.
Fig. 3 be in Fig. 2 B-B to structural representation.
Fig. 4 be in Fig. 2 C-C to structural representation.
Sequence number in figure: 1 is that pedestal, 2 is that fixedly stretching clamp, 21 is that base plate, 22 is that riser, 23 is that wedge shape slide plate, 24 is that grip block, 25 is that dovetail groove, 26 is that coattail strip, 27 is that groove, 3 is that movable stretching clamp, 4 is that bearing, 5 is that claw, 6 is that lifting jack, 7 is that pressure transducer, 8 is that load top board, 9 is that pull bar, 10 is that support, 11 is that chute, 12 is that roller chain, 13 is that carrying roller, 14 is that stiffening plate, 15 is that mounting hole, 16 is to unload nut.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
Embodiment mono-: referring to Fig. 1, the pre-pulling test machine of the long wire rope of a kind of km, comprise pedestal 1, the fixedly stretching clamp 2 that is positioned at left side and the movable stretching clamp 3 that is positioned at right side are installed on pedestal 1, the pedestal of described movable stretching clamp 3 downsides is provided with chute 11, in chute 11, be placed with roller chain 12, on the right side pedestal 1 of described movable stretching clamp 3, be fixed with bearing 4, bearing 4 right sides are installed with propulsion system by uniform claw 5, described propulsion system are lifting jack 6, or hydraulic cylinder or cylinder, the output terminal on the right side of propulsion system is connected with pressure transducer 7, pressure transducer 7 is fixedly connected with the vertically disposed load top board 8 of its right-hand member, the both sides of load top board 8 are connected with the both sides of movable stretching clamp 3 by symmetrical pull bar 9, described bearing 4 both sides offer the through hole mating with pull bar 9, to facilitate, support and guiding, the bottom of load top board 8 is provided with support 10, support 10 is provided with chute 11 and is placed on the roller chain 12 in chute 11, fixedly between stretching clamp 2 and movable stretching clamp 3, be evenly equipped with several carrying rollers 13, adjacent two idlers pitches are from being 1 ~ 3m.
Described fixedly stretching clamp 2 and movable stretching clamp 3 have included base plate 21, two risers 22 that are vertically fixed on base plate 21, wedge shape slide plate 23 and grip block 24, the inside surface angle of two described risers 22 is α, and 9 °≤α≤18 °, two symmetrical wedge shape slide plates 23 mate respectively and are fitted on two riser 22 inside surfaces, and the inside surface of this two wedge shapes slide plate 23 is parallel to each other, dovetail groove 25 and coattail strip 26 fit structures by vertical setting between the inside surface of each wedge shape slide plate 23 and grip block 24 link together, described grip block 24 inner sides are provided with the groove 27 of clamping steel wire rope, two described vertical riser 22 tops are fixed with web joint, riser 22 two sides are fixed with stiffening plate 14, on the stiffening plate 14 of described movable stretching clamp 3 both sides and load top board 8, all offer mounting hole 15, symmetrical pull bar 9 two ends, left and right are equipped with thread segment, two symmetrical pull bars 9 insert in mounting hole 15 and by being arranged on unloading nut 16 fixed installations of mounting hole 15 both sides.
Claims (8)
1. the pre-pulling test machine of the long wire rope of km, comprise pedestal, stretching clamp and propulsion system, the fixedly stretching clamp that is positioned at left side and the movable stretching clamp that is positioned at right side are installed on pedestal, it is characterized in that, on the right side pedestal of described movable stretching clamp, be fixed with bearing, bearing right side is installed with propulsion system by uniform claw, the output terminal on the right side of propulsion system is connected with pressure transducer, pressure transducer is fixedly connected with the vertically disposed load top board of its right-hand member, the both sides of load top board are connected with the both sides of movable stretching clamp by symmetrical pull bar, the bottom of load top board is provided with support, support is provided with chute and is placed on the roller chain in chute, fixedly between stretching clamp and movable stretching clamp, be evenly equipped with several carrying rollers.
2. the pre-pulling test machine of the long wire rope of km according to claim 1, it is characterized in that, described fixedly stretching clamp and movable stretching clamp have included base plate, two risers that are vertically fixed on base plate, wedge shape slide plate and grip block, the inside surface angle of two described risers is α, and 9 °≤α≤18 °, two symmetrical wedge shape slide plates mate respectively and are fitted on two riser inside surfaces, and the inside surface of this two wedge shapes slide plate is parallel to each other, dovetail groove and coattail strip fit structure by vertical setting between the inside surface of each wedge shape slide plate and grip block link together, described grip block inner side is provided with the groove of clamping steel wire rope.
3. the pre-pulling test machine of the long wire rope of km according to claim 2, is characterized in that, two described vertical riser tops are fixed with web joint, and riser two sides are fixed with stiffening plate.
4. the pre-pulling test machine of the long wire rope of km according to claim 3, it is characterized in that, on the stiffening plate of described movable stretching clamp both sides and load top board, all offer mounting hole, symmetrical two ends, pull bar left and right are equipped with thread segment, and two symmetrical pull bars insert in mounting hole and fixedly mount by being arranged on the unloading nut of mounting hole both sides.
5. the pre-pulling test machine of the long wire rope of km according to claim 1, is characterized in that, the pedestal of described movable stretching clamp downside is provided with chute, is placed with roller chain in chute.
6. the pre-pulling test machine of the long wire rope of km according to claim 1, is characterized in that, described propulsion system are lifting jack or hydraulic cylinder or cylinder.
7. the pre-pulling test machine of the long wire rope of km according to claim 1, is characterized in that, described adjacent two idlers pitches are from being 1 ~ 3m.
8. the pre-pulling test machine of the long wire rope of km according to claim 1, is characterized in that, described bearing both sides offer the through hole mating with pull bar, to facilitate, supports and guiding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310639517.0A CN103674700B (en) | 2013-12-04 | 2013-12-04 | The pre-pulling test machine of the long wire rope of km |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310639517.0A CN103674700B (en) | 2013-12-04 | 2013-12-04 | The pre-pulling test machine of the long wire rope of km |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103674700A true CN103674700A (en) | 2014-03-26 |
| CN103674700B CN103674700B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310639517.0A Expired - Fee Related CN103674700B (en) | 2013-12-04 | 2013-12-04 | The pre-pulling test machine of the long wire rope of km |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034591A (en) * | 2014-06-11 | 2014-09-10 | 北京国网富达科技发展有限责任公司 | Claw test instrument and claw test system |
| CN104634659A (en) * | 2014-12-11 | 2015-05-20 | 中国航天空气动力技术研究院 | Stay wire tension controller |
| CN105004614A (en) * | 2015-08-03 | 2015-10-28 | 江苏捷帝机器人股份有限公司 | Anti-tensile testing device of reset spring for robot joints |
| CN105129612A (en) * | 2014-10-11 | 2015-12-09 | 华电重工股份有限公司 | Double-trolley drive mechanism used for traversing type double-trolley quay crane |
| CN109916709A (en) * | 2019-03-27 | 2019-06-21 | 江苏神马电力股份有限公司 | A kind of test joint and test tool |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034591A (en) * | 2014-06-11 | 2014-09-10 | 北京国网富达科技发展有限责任公司 | Claw test instrument and claw test system |
| CN105129612A (en) * | 2014-10-11 | 2015-12-09 | 华电重工股份有限公司 | Double-trolley drive mechanism used for traversing type double-trolley quay crane |
| CN104634659A (en) * | 2014-12-11 | 2015-05-20 | 中国航天空气动力技术研究院 | Stay wire tension controller |
| CN104634659B (en) * | 2014-12-11 | 2017-05-03 | 中国航天空气动力技术研究院 | Stay wire tension controller |
| CN105004614A (en) * | 2015-08-03 | 2015-10-28 | 江苏捷帝机器人股份有限公司 | Anti-tensile testing device of reset spring for robot joints |
| CN105004614B (en) * | 2015-08-03 | 2017-10-20 | 江苏捷帝机器人股份有限公司 | A kind of mechanical person joint is with back-moving spring stretch-proof detection means |
| CN109916709A (en) * | 2019-03-27 | 2019-06-21 | 江苏神马电力股份有限公司 | A kind of test joint and test tool |
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|---|---|
| CN103674700B (en) | 2016-04-06 |
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Granted publication date: 20160406 Termination date: 20181204 |