CN103266514A - Device and method for untwisting steel wire rope - Google Patents
Device and method for untwisting steel wire rope Download PDFInfo
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- CN103266514A CN103266514A CN201310225090XA CN201310225090A CN103266514A CN 103266514 A CN103266514 A CN 103266514A CN 201310225090X A CN201310225090X A CN 201310225090XA CN 201310225090 A CN201310225090 A CN 201310225090A CN 103266514 A CN103266514 A CN 103266514A
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Abstract
The invention discloses a device and a method for untwisting a steel wire rope. The device comprises a winding frame, an unwinding frame and an operating frame, wherein the winding frame comprises a base and a rotary winding plate which is arranged on the base; the unwinding frame comprises a rotary plate base and a rotary unwinding plate; the rotary plate base is rotationally arranged on the ground; the rotary unwinding plate is arranged on the rotary plate base; the operating frame comprises a moving clamp and a rotating clamp, which are vertical to the ground; the rotating clamp comprises a handle, and is driven by the handle to rotate; and the operating frame, the rotary winding plate and the rotary unwinding plate are arranged in the same plane. By adopting the technical scheme of the invention, if stress exists in the steel wire rope used in a flat cable can be detected, and the stress is eliminated by the device and the method disclosed by the invention.
Description
Technical field
The present invention relates to a kind of cable detecting device and method, more particularly, relate to a kind of steel wire rope back twist device and method.
Background technology
Making flat its final purpose of type cable in the cable industry is in order thoroughly to eliminate the stress that the unit produces in the stranding process core.Move back the mode stranding though the secondary stranding has adopted to turn round, but may exist residual stress to discharge.For this reason, adjacent cells adopts antipodal direction of lay that residual stress is offset one by one to core from conductor synnema-time stranding-secondary stranding.Evidence: harmony and the stability of flat type cable when the vertical hanging high-speed mobile is further enhanced, and vertically freely hangs deflection angle and also is very helpful reducing flat type cable simultaneously.
At present, building height surpasses total core number of the flat type cable of retinue of the above civilian or elevator that commercial building uses of 150m all more than 90 cores.And because hoisting depth 150m is above, elevator speed reaches the above superelevation layer super high speed elevator of 6M/S and all adopts big car usually, require with it for this reason the U-shaped bending diameter of the supporting flat type elevator trailing cable of super multicore must reach 650mm and more than.If do not adopt special cable construction and special cable jacket material can't satisfy this requirement.Difficulty just so, domestic still do not have manufacturer and can be manufactured on a flat type cable inner control core number and reach the above flat type cable of super multicore elevator trailing of 90 cores.
And the building developer is for pursuing the high building coverage of building, and it is all less than normal generally to design elevator installation hoistway.In narrow and small hoistway space, vertically freely hang and want and constantly just must guarantee to have the dynamic equilibrium performance of height with the flat type elevator trailing cable of high-speed mobile about the lift car, to prevent that cable from producing the swing of the super scope in all around in running, grazing well enclosure or lift car make cable bad.The deflection angle of its cable can not be above 200 when requiring vertical hanging in the big height hoistway of the flat type elevator trailing cable of super multicore more than 150m for this reason.And flat type cable vertical hanging deflection angle and the lifting height of lift relation that just is inversely proportional to.Hoisting depth is more high, requires flat type cable vertical hanging deflection angle more little.This is very big problem of difficulty of flat type cables manufacturing, and at present domestic still do not have manufacturer yet and have preferably that method is solved.
In the manufacturing of flat type cable, each then must be opposite fully to core group stranded (secondary stranding) direction, adopts Z-direction.The lining core is filled out to also filling a PVC in the middle of the core group in every unit.Laying up pitch control in the unit to the 10-12 of core external diameter doubly.Must select the equipment stranding of back twist fully for use, the laying tension of each core group wants strict control to be consistent.
Summary of the invention
Purpose of the present invention aims to provide a kind of steel wire rope back twist device and method, solves the problem that load original paper (or steel wire rope) stress in the flat cable is difficult to eliminate in the prior art.
According to the present invention, a kind of steel wire rope back twist device is provided, comprise take-up stand, pay off rack, crosshead.Take-up stand comprises base and take-up rotating disk, the take-up rotating disk is arranged on the base, pay off rack comprises rotary base and unwrapping wire rotating disk, rotary base is arranged on the ground rotationally, the unwrapping wire rotating disk is arranged on the rotary base, comprises mobile folder and rotating clip perpendicular to the ground on the crosshead, and rotating clip comprises a handle, handle drives rotating clip and rotates, and crosshead, take-up rotating disk and unwrapping wire rotating disk are arranged in the same plane.
According to one embodiment of the invention, base comprises first a vertical fixed bar, bag first fixed axis on first fixed bar, and the take-up rotating disk is arranged on the fixed axis.
According to one embodiment of the invention, rotary base comprises second a vertical fixed bar, comprises second fixed axis on second fixed bar, and the unwrapping wire rotating disk is arranged on second fixed axis.
According to one embodiment of the invention, also comprise alignment surface, alignment surface is arranged at the crosshead below, the position graticule of sign take-up stand, pay off rack, crosshead and steel wire.
According to one embodiment of the invention, crosshead comprises horizon bar, and mobile folder and rotating clip are arranged on the horizon bar, can be along horizon bar adjusting position in the horizontal direction.
According to a further aspect in the invention, disclose a kind of steel wire rope back twist method, may further comprise the steps: step 1 makes marks to steel wire rope; Step 2 is pulled out the steel wire rope of certain-length; Step 3 forms ring-type with the mid portion of the steel wire rope of pulling out, and both sides still keep linearity, and annulus and linearity part are all perpendicular to ground; Step 4 concerns to judge whether needs back twist of steel wire rope according to the position of annulus and linearity part; Step 5 is carried out the back twist operation to the steel wire rope that needs back twist.
According to one embodiment of the invention, the determination methods of step 4 is: if annulus and linearity part can be in the same plane, judge that then the annulus steel wire rope does not twist, otherwise the steel wire rope existence of annulus is reversed.
According to one embodiment of the invention, the concrete operations of step 5 are: with the opposite direction adjustment along the annulus torsional direction of the rotary base of pay off rack.
According to one embodiment of the invention, before step 1, steel wire rope is placed on the pay off rack, the interval is 30 meters between pay off rack and the take-up stand.
According to one embodiment of the invention, annulus is positioned on the alignment surface, and the linearity partial fixing is on crosshead.
Adopted technical scheme of the present invention, can detect the steel wire rope that is applied in the flat type cable and whether have stress, and eliminate this stress by apparatus and method of the present invention.
Description of drawings
In the present invention, identical Reference numeral is represented identical feature all the time, wherein:
Fig. 1 is the structural representation of steel wire rope back twist device of the present invention;
Fig. 2 is the schematic diagram of steel wire rope when detecting;
Fig. 3 is the flow chart of steel wire rope back twist method of the present invention.
The specific embodiment
Further specify technical scheme of the present invention below in conjunction with drawings and Examples.
Steel wire rope back twist apparatus and method of the present invention at be elevator with the steel wire rope in the flat type cable of super multicore, because the flat type cable of super multicore big length (surpassing 150M) in elevator hoistways vertically freely hangs, the weight of its carrying cable and the acceleration gravity that flat type cable produces when high-speed mobile thereof bear a heavy burden by 2 steel wire ropes are fixing entirely, must select the super flexible steel wire rope of back twist fully of high strength for use for this reason.
The structure of the super flexible wire ropes of high strength is A7 * 19(Φ 5.6mm:7/19/0.37mm), be to adopt the manufacturing of 133 steel wires process twice stranding to form.Because steel wire itself has the feature of extremely strong toughness and superpower rigidity, no matter use the back twist steel wire rope how sophisticated equipment is made, the stress that is difficult to guarantee producing in the stranded many steel wire strand processes all eliminates.
The residual stress that may retain in the steel wire rope is the deflection angle of the flat type cable of influence under vertical free suspension status directly.Evidence: influence the size of flat type cable vertical hanging deflection angle, its former reason steel wire rope more than 80% determines.
The present invention verifies whether leave residual stress in the back twist steel wire rope by disclosing a kind of apparatus and method, and handles, eliminates residual stress.The way that the present invention eliminates stress also can be referred to as back twist.
With reference to Fig. 1, the present invention surpasses more than the 30M in length that (terrace preferably passes through the epoxy resin application) arranges take-up stand 1, pay off rack 2, crosshead 3 and alignment surface 4 in the shipshape workshop.
As shown in Figure 1, take-up stand 1 comprises base 11 and take-up rotating disk 12, and base 11 comprises a vertical fixed bar, wraps fixed axis on the fixed bar, and take-up rotating disk 12 is arranged on the base 11, namely is arranged on the fixed axis, and can rotates along fixed axis.
The structure of pay off rack 2 and take-up stand 1 are similar.Pay off rack 2 comprises rotary base 21 and unwrapping wire rotating disk 22, and rotary base 21 comprises a vertical fixed bar, comprises fixed axis on the fixed bar, and unwrapping wire rotating disk 22 is arranged on the rotary base, namely is arranged on the fixed axis, and can rotates along fixed axis.
Different with take-up stand 1 is that rotary base 21 is arranged on the ground rotationally, 360 degree rotations about energy, the about 30M of air line distance in the middle of take-up stand 1, the pay off rack 2.
Crosshead 3 comprises horizon bar, mobile folder 31 perpendicular to the ground and rotating clip 32, and mobile folder 31 and rotating clip 32 are arranged on the horizon bar, can be along horizon bar adjusting position in the horizontal direction.Rotating clip 32 comprises a handle 33, and handle 33 drives rotating clip 32 and rotates, and crosshead 3, take-up rotating disk 12 and unwrapping wire rotating disk 22 are arranged in the same plane.
As shown in Figure 2, in use, steel wire to be detected passes mobile folder 31 and rotating clip 32 successively, and its below forms a ring-type, and two sections steel wire ropes that mobile folder 31 and rotating clip 32 are drawn are linearly.Annulus is positioned on the alignment surface 4, and the linearity partial fixing is on crosshead.
The present invention also discloses a kind of back twist method of utilizing above-mentioned steel wire rope back twist device to carry out, comprises following key step, as shown in Figure 3:
S1: at first, steel wire rope is placed on the pay off rack 2, the interval is 30 meters between pay off rack 2 and the take-up stand 1.
Subsequently, the steel wire rope on the pay off rack 2 is made marks, coat the conspicuous color mark with powerful coloured pencil on steel wire rope ground floor surface.
S2: pulling out the about 30M(of the steel wire rope of coating mark then under complete nature almost is ground floor).
S3: the mid portion of the steel wire rope of pulling out is formed ring-type, and both sides still keep linearity, and annulus and linearity part are all perpendicular to ground.
S4: concern to judge whether needs back twist of steel wire rope according to the position of annulus and linearity part.If annulus and linearity part can be in the same plane, judge that then the annulus steel wire rope does not twist, otherwise the steel wire rope existence of annulus is reversed.
Specifically, with two side straight line steel wire rope surface markings after looping to holding together to make it to be in fully on the same straight line, this moment as shown in Figure 2, if become the steel wire rope of round part not twist, should be in same plane with the straight line steel wire rope, can distinguish that then this segment length steel wire rope back twist is complete, residual stress can be ignored.Occur reversing as the round steel wire rope, then there is obvious residual stress in explanation.
S5: the steel wire rope that needs back twist is carried out back twist operation, with the opposite direction adjustment along the annulus torsional direction of the rotary base of pay off rack.
Specifically, open the round steel wire rope this moment, is positioned on the ground, rotates pay off rack 2 and carry out back twist.The number of turns of rotating pay off rack 2 should decide according to round steel wire rope deflection angle, places direction that steel wire rope using artificial on the ground press pay off rack 2 rotations whipping together.If the round steel wire rope reverses and takes back, pay off rack 2 turns right; If the round steel wire rope reverses and takes over, pay off rack 2 turns left.
After above-mentioned steps was finished, step S3 was namely got back in checking as stated above again, no longer occurred reversing until the back round steel wire rope of looping, and steel wire rope that can the complete back twist of this section is good is received and gone up take-up reel 1.With draw drum 2 second layer steel wire ropes surfaces marking, do above-mentioned checking and processing after pulling out again, the carrying out of going round and beginning again like this, until with about verify to 2 required steel wire ropes with length and to handle.The general 150M length cables of making, need checking to handle about to each 180M(cable length of steel wire rope 120%).
Only the steel wire rope of the above-mentioned special treatment of compound process can guarantee that as load-bearing component flat type cable deflection angle under the big vertical free suspension status of length meets the requirements in the flat type cable of super multicore.
Those of ordinary skill in the art will be appreciated that above specification only is one or more embodiments among the numerous embodiment of the present invention, and is not to use limitation of the invention.Any for the above embodiment equalization variation, modification and be equal to technical schemes such as alternative, as long as connotation scope according to the invention, all will drop in the scope that claims of the present invention protect.
Claims (10)
1. a steel wire rope back twist device comprises take-up stand, pay off rack, crosshead, it is characterized in that:
Described take-up stand comprises base and take-up rotating disk, and described take-up rotating disk is arranged on the described base;
Described pay off rack comprises rotary base and unwrapping wire rotating disk, and described rotary base is arranged on the ground rotationally, and described unwrapping wire rotating disk is arranged on the described rotary base;
Comprise mobile folder and rotating clip perpendicular to the ground on the described crosshead, described rotating clip comprises a handle, and described handle rotates described rotating clip and rotates;
Described crosshead, take-up rotating disk and described unwrapping wire rotating disk are arranged in the same plane.
2. steel wire rope back twist device as claimed in claim 1 is characterized in that, described base comprises first a vertical fixed bar, bag first fixed axis on first fixed bar, and the take-up rotating disk is arranged on the fixed axis.
3. steel wire rope back twist device as claimed in claim 1 is characterized in that, described rotary base comprises second a vertical fixed bar, comprises second fixed axis on second fixed bar, and the unwrapping wire rotating disk is arranged on second fixed axis.
4. steel wire rope back twist device as claimed in claim 1 is characterized in that, also comprises alignment surface, and described alignment surface is arranged at described crosshead below, the position graticule of sign take-up stand, pay off rack, crosshead and steel wire.
5. steel wire rope back twist device as claimed in claim 1 is characterized in that described crosshead comprises horizon bar, and described mobile folder and rotating clip are arranged on the described horizon bar, can be along described horizon bar adjusting position in the horizontal direction.
6. a steel wire rope back twist method of utilizing any described steel wire rope back twist device in the claim 1～5 is characterized in that, may further comprise the steps:
Step 1 makes marks to steel wire rope;
Step 2 is pulled out the steel wire rope of certain-length;
Step 3 forms ring-type with the mid portion of the steel wire rope of pulling out, and both sides still keep linearity, and annulus and linearity part are all perpendicular to ground;
Step 4 concerns to judge whether needs back twist of steel wire rope according to the position of annulus and linearity part;
Step 5 is carried out the back twist operation to the steel wire rope that needs back twist.
7. steel wire rope back twist method as claimed in claim 6, it is characterized in that, the determination methods of described step 4 is: if described annulus and described linearity part can be in the same plane, judge that then described annulus steel wire rope does not twist, otherwise the steel wire rope existence of described annulus is reversed.
8. steel wire rope back twist method as claimed in claim 6 is characterized in that the concrete operations of described step 5 are: with the opposite direction adjustment along the annulus torsional direction of the rotary base of pay off rack.
9. steel wire rope back twist method as claimed in claim 6 is characterized in that, before step 1, steel wire rope is placed on the pay off rack, and the interval is 30 meters between described pay off rack and the described take-up stand.
10. steel wire rope back twist method as claimed in claim 6 is characterized in that described annulus is positioned on the alignment surface, and described linearity partial fixing is on crosshead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310225090.XA CN103266514B (en) | 2013-06-06 | 2013-06-06 | Steel wire rope untwisting device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310225090.XA CN103266514B (en) | 2013-06-06 | 2013-06-06 | Steel wire rope untwisting device and method |
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| CN103266514A true CN103266514A (en) | 2013-08-28 |
| CN103266514B CN103266514B (en) | 2015-09-16 |
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| CN201310225090.XA Active CN103266514B (en) | 2013-06-06 | 2013-06-06 | Steel wire rope untwisting device and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358172A (en) * | 2014-10-30 | 2015-02-18 | 江苏兴达钢帘线股份有限公司 | Steel cord twisting and untwisting device |
| CN104944209A (en) * | 2015-06-29 | 2015-09-30 | 国网辽宁省电力有限公司葫芦岛供电公司 | Paying off device rotating stiffness breaking device |
| CN107476100A (en) * | 2017-08-21 | 2017-12-15 | 长治高测新材料科技有限公司 | The manufacture device of annular wire rope |
| CN116206819A (en) * | 2023-03-29 | 2023-06-02 | 广州市广惠通线缆有限公司 | Active untwisting and paying-off method and device for cable |
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| CN2054767U (en) * | 1989-05-13 | 1990-03-21 | 甘肃送变电工程公司 | Steel cable backing-off machine |
| WO2001038630A1 (en) * | 1999-11-24 | 2001-05-31 | Nordx/Cdt, Inc. | Double twist twisting machine |
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| CN202039235U (en) * | 2010-12-31 | 2011-11-16 | 江阴鼎天科技有限公司 | Automatic detection-modification integral device for steel wire rope residual torsion |
| CN102446592A (en) * | 2010-10-15 | 2012-05-09 | 苏州朝隆机械有限公司 | Back-twisting wire stranding machine |
| CN102708994A (en) * | 2012-06-26 | 2012-10-03 | 苏州古河电力光缆有限公司 | Stranded wire untwisting device |
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Patent Citations (9)
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| US1448543A (en) * | 1918-10-09 | 1923-03-13 | Jagger Peter Burd | Rope-untwisting apparatus |
| CN2054767U (en) * | 1989-05-13 | 1990-03-21 | 甘肃送变电工程公司 | Steel cable backing-off machine |
| WO2001038630A1 (en) * | 1999-11-24 | 2001-05-31 | Nordx/Cdt, Inc. | Double twist twisting machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358172A (en) * | 2014-10-30 | 2015-02-18 | 江苏兴达钢帘线股份有限公司 | Steel cord twisting and untwisting device |
| CN104944209A (en) * | 2015-06-29 | 2015-09-30 | 国网辽宁省电力有限公司葫芦岛供电公司 | Paying off device rotating stiffness breaking device |
| CN107476100A (en) * | 2017-08-21 | 2017-12-15 | 长治高测新材料科技有限公司 | The manufacture device of annular wire rope |
| CN107476100B (en) * | 2017-08-21 | 2023-12-05 | 长治高测新材料科技有限公司 | Manufacturing device for annular steel wire rope |
| CN116206819A (en) * | 2023-03-29 | 2023-06-02 | 广州市广惠通线缆有限公司 | Active untwisting and paying-off method and device for cable |
| CN116206819B (en) * | 2023-03-29 | 2023-12-08 | 广州市广惠通线缆有限公司 | Active untwisting and paying-off method and device for cable |
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|---|---|
| CN103266514B (en) | 2015-09-16 |
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