CN102515038B - Manufacturing method of prestress steel wire rope row - Google Patents
Manufacturing method of prestress steel wire rope row Download PDFInfo
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- CN102515038B CN102515038B CN201210009010.2A CN201210009010A CN102515038B CN 102515038 B CN102515038 B CN 102515038B CN 201210009010 A CN201210009010 A CN 201210009010A CN 102515038 B CN102515038 B CN 102515038B
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Abstract
The invention discloses a method for manufacturing a prestress steel wire rope row, which comprises the the following steps of: (1) installing steel wire ropes on a tensioning mechanism according to the needed length L and number, fixing one ends of the steel wire ropes, applying force on the other ends of the steel wire ropes for tensioning, ensuring the stress of the whole steel wire rope to be equal, and leading the whole steel wire rope to be balanced; (2) fixing the two ends of the steel wire rope row by clips and recovering the steel wire rope row to a natural state; and (3) reserving the lengths needed by the joints at the two ends of the steel wire rope row, cutting off the tips of the two ends of the steel wire rope row, and pouring the steel wire rope row, wherein the prestress steel wire rope row includes rope row joints and at least two steel wire ropes, and each steel wire rope between the rope two joints is suffered to equal stress under a tension state. One end of the tensioning mechanism is provided with a fixed point and a pulley, and the other end of the tensioning mechanism is provided with two pulleys; and the tensioning mechanism is a hydraulic mechanism. Before the steel wire rope row is poured, the treatment of diffusing and cleaning steel wires can be carried out. The tensile strength of the prestress steel wire rope row is improved by 30%, and the breaking force of the rope row reaches 97% of the sum of the minimum breaking force of the steel wire ropes.
Description
Technical field
The present invention relates to Current Collector Sleave and rigging manufacturing equipment field, particularly relate to lifting special train telescopic boom field.
Background technology
In recent years, lifting special train was in China's fast development, and special train telescopic boom is by 2～6 steel ropes casting rigging of making of casting side by side with flexible steel rope, is called for short rope row.As shown in Figure 1, this rope comes while making, the process adopting is mainly measuring steel wire rope length dimension, many rope capacities are consistent as far as possible, and due to the reason such as control device and manufacturing errors, the steel rope carrying while making it carry (or disrumpent feelings) at volume between rope row joint is uneven, cause strap stress maximum, rope row's destruction is depended on the dialysis of strap, and its rope row shortens service life, and load-carrying capacity is not high; In the time that engineer designs rope row, in order to improve rope row's overall tensile strength, often select high-performance steel wire rope, increase manufacturing cost.For this reason, technical personnel improves, and adopts and directly keeps the many stressed uniform methods of steel rope, the pulling force maximum that rigging can be born.
Summary of the invention
The invention reside in the defect that has overcome prior art, the manufacture method that provides a kind of prestress rope simple in structure, that tensile strength is high to arrange.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
Described prestress rope row's manufacture method, comprises the following steps, and (1) steel rope is installed on stretching device by Len req L and radical, steel rope one end is fixed, the tensioning of the steel rope other end application of force, whole steel rope internal stress is equal, and steel rope reaches balance;
(2) two ends that use the fixing steel rope of clamp to arrange, recover steel rope and are discharged to state of nature;
(3) reserve two end junction Len reqs, cut off steel rope row termination, two ends, casting steel rope row; Wherein, prestress rope row, comprises rope row joint, at least two steel ropes, and each steel rope between described rope row joint equates at tension state lower stress.
Further, stretching device is that one end is provided with attachment point and pulley, and the other end is provided with two pulleys.
Further, stretching device is hydraulic gear.
Further, before steel rope row casting, carry out filoselle, clean.
Compared with prior art, the present invention has following beneficial effect:
Prestress rope is arranged overall tensile strength and can be increased substantially, and rope row's rupture pull force reaches 97% of steel rope minimum breaking force summation, and rope row's rupture pull force can reach 100% of steel rope minimum breaking force summation in theory.
The load-carrying capacity of steel rope and service life maximize.
Conserve space, is used compared with the steel rope of small dimension, makes the design of special train telescopic boom compacter.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that existing steel rope is arranged the tensioning of initial tensioned wire rope;
Fig. 2 is tensioning steel rope schematic diagram before prestress rope row of the present invention casting;
Fig. 3 is the fixing schematic diagram that keeps steel rope before prestress rope row of the present invention casting;
Fig. 4 is the schematic diagram of prestress rope row tension of the present invention, steel wire tensioning.
The specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
As shown in Figure 4, prestress rope row, comprises rope row joint 5, at least two steel ropes 2, and each steel rope 2 between described rope row joint 5 equates at tension state lower stress.
As shown in Figure 2, Figure 3, Figure 4, steel rope row's manufacture method, comprise the following steps, (1) steel rope 2 is pressed on Len req L and radical suspension stretching device 1, stretching device 1 has pulley 3, the frame other end to be provided with upper and lower two pulleys 3 in the middle of being provided with upper and lower attachment point and attachment point for frame one end; Steel rope 2 one end are fixed, and steel rope 2 other ends are by required rated load application of force F tensioning, and whole steel rope internal stress is equal, and steel rope reaches balance.Or use each steel rope of the direct tensioning of hydraulic gear.
(2) two ends that use the fixing steel rope of clamp 4 to arrange, slowly release action power, recovers steel rope and is discharged to state of nature, keeps the length dimension of each steel rope constant.
(3) reserve steel rope by Len req and arrange two end junctions, cut off joint, carry out filoselle, clean, casting steel rope row.In the time that the steel rope 2 between rope row's joint 5 is accepted external force and again reached volume and carry state, the tension force that its every rope is exported equates, reaches the maximized object of load-carrying capacity of steel rope.
The steel rope row that the present invention makes, overall tensile strength increases substantially, and rope row's rupture pull force reaches 97% of steel rope minimum breaking force summation, and rope row's rupture pull force can reach 100% of steel rope minimum breaking force summation in theory.
The steel rope row that this method is made is applied to the manufacture of lifting special train telescopic boom, and cost-saving and space makes the design of special train telescopic boom compacter.
The foregoing is only explanation embodiments of the present invention; be not limited to the present invention, for a person skilled in the art, within the spirit and principles in the present invention all; any modification of doing, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Claims (4)
1. prestress rope row's manufacture method, comprises the following steps, and (1) steel rope is installed on stretching device by Len req L and radical, and steel rope one end is fixed, the tensioning of the steel rope other end application of force, and whole steel rope internal stress is equal, and steel rope reaches balance;
(2) two ends that use the fixing steel rope of clamp to arrange, recover steel rope and are discharged to state of nature;
(3) reserve two end junction Len reqs, cut off steel rope row termination, two ends, casting steel rope row;
Wherein, prestress rope row, comprises rope row joint, at least two steel ropes, it is characterized in that, each steel rope between described rope row joint equates at tension state lower stress.
2. prestress rope row's according to claim 1 manufacture method, is characterized in that: stretching device is that one end is provided with attachment point and pulley, and the other end is provided with two pulleys.
3. prestress rope row's according to claim 1 manufacture method, is characterized in that: stretching device is hydraulic gear.
4. prestress rope row's according to claim 1 manufacture method, is characterized in that: before steel rope row casting, carry out filoselle, clean.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009010.2A CN102515038B (en) | 2012-01-12 | 2012-01-12 | Manufacturing method of prestress steel wire rope row |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009010.2A CN102515038B (en) | 2012-01-12 | 2012-01-12 | Manufacturing method of prestress steel wire rope row |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102515038A CN102515038A (en) | 2012-06-27 |
| CN102515038B true CN102515038B (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210009010.2A Active CN102515038B (en) | 2012-01-12 | 2012-01-12 | Manufacturing method of prestress steel wire rope row |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2626770C2 (en) * | 2015-10-14 | 2017-08-01 | Акционерное общество "Московский вертолетный завод им. М.Л. Миля" | Method of mono-rings manufacturing for band ropes and device for its implementation |
| CN106087748B (en) * | 2016-06-17 | 2018-08-31 | 中铁大桥勘测设计院集团有限公司 | A kind of steel strand stay cable Suo Fangfa |
| CN106495065B (en) * | 2016-12-15 | 2019-05-14 | 徐工消防安全装备有限公司 | A kind of self-balancing extension means for duplex type rope |
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| CN201605125U (en) * | 2009-12-16 | 2010-10-13 | 河南省东泰齿轮有限公司 | Novel electric block |
| CN102234944A (en) * | 2011-04-15 | 2011-11-09 | 王宏贵 | Steel wire rope casting rigging |
| CN202080842U (en) * | 2011-04-29 | 2011-12-21 | 三一汽车起重机械有限公司 | Crane and multi-arm telescoping mechanism thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6796854B2 (en) * | 2002-06-06 | 2004-09-28 | Fci Americas Technology, Inc. | Automatic electrical wedge connector |
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2012
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|---|---|---|---|---|
| GB2176567A (en) * | 1985-05-10 | 1986-12-31 | Hepburn John T Ltd | Anchoring system for floating structure |
| CN2065236U (en) * | 1990-02-20 | 1990-11-07 | 青岛石油机械厂 | Roller type oil pump with prolonged service life of flexible piece |
| CN1542309A (en) * | 2003-11-05 | 2004-11-03 | 慧 杨 | Pulling rope for digging machine |
| CN201010428Y (en) * | 2007-03-12 | 2008-01-23 | 巨力索具股份有限公司 | Inverse plugged restoring steel cable tool |
| CN201077711Y (en) * | 2007-06-18 | 2008-06-25 | 巨力索具股份有限公司 | Wide-body applanation hanging belt |
| CN201214601Y (en) * | 2008-05-07 | 2009-04-01 | 长沙中联重工科技发展股份有限公司 | Main arm telescopic mechanism for crane |
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| CN101700858A (en) * | 2008-12-29 | 2010-05-05 | 攀枝花钢城集团瑞钢工业有限公司 | Wound steel rope replacing method |
| CN201598092U (en) * | 2009-07-22 | 2010-10-06 | 张继刚 | Wire rope sling |
| CN201605125U (en) * | 2009-12-16 | 2010-10-13 | 河南省东泰齿轮有限公司 | Novel electric block |
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| CN202080842U (en) * | 2011-04-29 | 2011-12-21 | 三一汽车起重机械有限公司 | Crane and multi-arm telescoping mechanism thereof |
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| CN102515038A (en) | 2012-06-27 |
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