CN215829137U - High-resistance rotation performance steel wire rope of crawler crane - Google Patents
High-resistance rotation performance steel wire rope of crawler crane Download PDFInfo
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- CN215829137U CN215829137U CN202121945664.7U CN202121945664U CN215829137U CN 215829137 U CN215829137 U CN 215829137U CN 202121945664 U CN202121945664 U CN 202121945664U CN 215829137 U CN215829137 U CN 215829137U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 130
- 239000010959 steel Substances 0.000 title claims abstract description 130
- 210000000689 upper leg Anatomy 0.000 claims abstract 9
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000011295 pitch Substances 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000011162 core material Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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Abstract
The utility model provides a high-rotation-resistance steel wire rope of a crawler crane, and relates to the technical field of steel wire ropes. It contains the center thigh first layer thigh and outer layer thigh syntropy is alternately twisted with fingers, the big thigh of second layer and the mutual direction of twisting with fingers of the little thigh of second layer with the mutual opposite direction of twisting with fingers of center thigh, through the mutual setting of twisting with fingers the direction of above-mentioned thigh, guaranteed that wire rope possesses outstanding anti rotation performance, also reduce the contact stress between the steel wire simultaneously for wire rope's performance is better. Meanwhile, the number of lay lengths of the central strand, the first layer strand, the second layer large strand and the second layer small strand is the same, and the number of lay lengths of the outer layer strands is smaller than that of the central strand. The rotation torque of the outer strand is increased by reducing the lay length multiple of the outer strand, so that the inhibiting effect on the rotation torque of the steel wire rope is increased, and the rotation torque of the steel wire rope is weakened.
Description
Technical Field
The utility model relates to the technical field of steel wire ropes, in particular to a high-rotation-resistance steel wire rope of a crawler crane.
Background
With the development of railway construction, energy production facilities and municipal infrastructure in China, new requirements are made on the volume, the quality and the lifting height of articles hoisted during construction, so that the development of crawler crane equipment used during construction to a larger tonnage is promoted, the requirements of a steel wire rope for the crawler crane to be matched are improved, and in order to reduce the problems of internal corrosion, abrasion and wire breakage, birdcage shape, strand scattering, strand floating, stirring and the like of the steel wire rope in the use process, the steel wire rope is required to be developed towards high quality directions such as higher breaking force, better extrusion impact force resistance, better rotation resistance, higher flexibility, stronger abrasion resistance and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-rotation-resistance steel wire rope of a crawler crane, which has excellent performance and overcomes the defects of the prior art.
A high-rotation-resistance steel wire rope of a crawler crane comprises an inner layer sub rope and an outer layer sub rope; the inner layer sub-rope comprises a central strand, a predetermined number of first layer strands, a predetermined number of second layer large strands and a predetermined number of second layer small strands, the first layer strands are uniformly wrapped and compacted on the peripheral side of the central strand, the second layer large strands are uniformly wrapped and compacted on the peripheral side of the first layer strands, and the second layer small strands are filled between two adjacent second layer large strands; the outer layer sub-rope comprises a preset number of outer layer strands, and the outer layer strands are uniformly wrapped and compacted on the peripheral side of the inner layer sub-rope; the center strand, the first layer strand and the outer layer strand are alternately twisted in the same direction, the direction of the second layer large strand and the second layer small strand are opposite to the direction of the center strand, the number of the twist pitches of the center strand, the first layer strand, the second layer large strand and the second layer small strand is the same, and the number of the twist pitches of the outer layer strand is smaller than that of the center strand.
Preferably, the central strand comprises 1 strand, the first layer strand, the second layer large strand and the second layer small strand each comprise 7 strands, and the outer layer strand comprises 16 strands.
Preferably, the central strand comprises 1 first central steel wire, 18 first thick steel wires and 6 first thin steel wires, wherein 6 first thick steel wires are symmetrically wrapped and twisted on the first central steel wire, 6 first thin steel wires are positioned in the outer gaps of two adjacent first thick steel wires, and 12 first thick steel wires are symmetrically wrapped and twisted on the outermost side of the central strand; the first center steel wire, the first thick steel wires and the first thin steel wires are in surface contact. The number of steel wires in the central strand is large, so that the overall flexibility of the steel wire rope is improved; in addition, the filling density is high, the metal area is increased, and the breaking tension is correspondingly improved, so that the comprehensive performance of the steel wire rope is better.
Preferably, the first layer strands, each second layer large strand and each second layer small strand each include 1 central steel wire, 10 thin steel wires, 5 middle thin steel wires and 10 thick steel wires; 5 thin steel wires wrap and twist the central steel wire, 5 medium thin steel wires and 5 thin steel wires are arranged on the outer layer of the central steel wire in a staggered wrapping and twisting mode, and 10 thick steel wires are symmetrically wrapped and twisted on the outermost side of the inner layer strand; wherein the central steel wire, the thin steel wires, the medium thin steel wires and the thick steel wires are in surface contact.
Preferably, filling layers for wetting lubricating grease are filled between the central strand and each first layer strand, between each first layer strand and each second layer large strand and between each first layer strand and each second layer small strand, and between the outer layer strands and each second layer large strand and between each outer layer strands. The filling layer is preferably a sponge core material layer, so that the wear resistance and the corrosion resistance of the steel wire rope are greatly improved, and the service life of the steel wire rope is long.
Preferably, the outer surface of the outer strand is plated with a zinc layer, which increases the wear resistance of the steel wire rope.
Preferably, the central strand, the first layer strand, the second layer large strand, the second layer small strand and the outer layer strand are in surface contact.
Preferably, the diameter of the central strand is greater than the diameter of the first layer strand, the diameter of the first layer strand is greater than the diameter of the outer layer strand, the diameter of the outer layer strand is greater than the diameter of the second layer large strand, and the diameter of the second layer large strand is greater than the diameter of the second layer small strand. Bonding the outer strands comprised 16 strands. Therefore, the number of strands of the outer layer is large, the diameter of the inner layer rope is large, the smaller the torsion moment M is, and the better the anti-rotation performance of the steel wire rope is.
Preferably, the central strands and the first layer strands are right-hand cross-twisted, the second layer large strands and the second layer small strands are left-hand cross-twisted, and the outer layer strands are right-hand cross-twisted.
Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a high-resistance rotation performance steel wire rope of a crawler crane, which comprises a central strand, a first layer strand and an outer layer strand which are alternately twisted in the same direction, wherein the direction of the alternate twisting of a second layer large strand and a second layer small strand is opposite to the direction of the alternate twisting of the central strand. Meanwhile, the number of lay lengths of the central strand, the first layer strand, the second layer large strand and the second layer small strand is the same, and the number of lay lengths of the outer layer strands is smaller than that of the central strand. The rotation torque of the outer strand is increased by reducing the lay length multiple of the outer strand, so that the inhibiting effect on the rotation torque of the steel wire rope is increased, and the rotation torque of the steel wire rope is weakened. Meanwhile, the strands are wrapped and compacted, so that a surface contact structure is formed, the effective area of metal contact in the steel wire rope is increased, the contact surface of the steel wire rope is large when the steel wire rope is used, the abrasion resistance is greatly improved compared with that of a common round strand steel wire rope with the same diameter, and meanwhile, the impact load resistance and the rotation resistance are also greatly enhanced.
Drawings
FIG. 1 is a schematic structural diagram of a high-resistance rotation performance steel wire rope of a crawler crane according to the utility model;
wherein:
1-central strand, 2-first layer strand, 3-second layer large strand, 4-second layer small strand and 5-outer layer strand.
Detailed Description
The embodiments described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a high-resistance rotation performance steel wire rope of a crawler crane comprises an inner layer sub rope and an outer layer sub rope; the inner layer sub-rope comprises a central strand 1, a predetermined number of first layer strands 2, a predetermined number of second layer large strands 3 and a predetermined number of second layer small strands 4, the first layer strands 2 are uniformly wrapped and compacted on the peripheral side of the central strand 1, the second layer large strands 3 are uniformly wrapped and compacted on the peripheral side of the first layer strands 2, and the second layer small strands 4 are filled between two adjacent second layer large strands 3; the outer layer sub-rope comprises a predetermined number of outer layer strands 5, and the outer layer strands 5 are uniformly wrapped and compacted on the peripheral side of the inner layer sub-rope. Specifically, the center strand 1 includes 1 strand, the first layer strand 2, the second layer large strand 3, and the second layer small strand 4 each include 7 strands, and the outer layer strands 5 include 16 strands.
The central strand 1, the first layer strand 2 and the outer layer strand 5 are alternately twisted in the same direction, and the second layer large strand 3 and the second layer small strand 4 are alternately twisted in the opposite direction to the direction of the central strand 1. Preferably, the central strand 1 and each of the first layer strands 2 are left-hand twisted, each of the second layer large strands 3 and each of the second layer small strands 4 are left-hand twisted, and the outer layer strands 5 are right-hand twisted. Of course, the direction of the alternating twist of the individual strands can be changed simultaneously to another opposite direction. Meanwhile, the number of lay lengths of the central strand 1, the first layer strand 2, the second layer large strand 3 and the second layer small strand 4 is the same, and the number of lay lengths of the outer layer strands 5 is smaller than that of the central strand 1. Preferably, the number of the lay lengths of the central strand 1, the first layer strand 2, the second layer large strand 3 and the second layer small strand 4 is 10, and the number of the lay lengths of the outer layer strands 5 is 8.
Preferably, the central strand 1, the first layer strand 2, the second layer large strand 3, the second layer small strand 4 and the outer layer strand 5 are in surface contact. The effective area of metal contact in the steel wire rope is increased, the contact surface of the steel wire rope is large when the steel wire rope is used, the wear resistance is greatly improved compared with that of a common round strand steel wire rope with the same diameter, and meanwhile, the impact load resistance and the rotation resistance are also greatly enhanced.
Preferably, the central strand 1 comprises 1 first central steel wire, 18 first thick steel wires and 6 first thin steel wires, 6 first thick steel wires are symmetrically twisted on the first central steel wire, 6 first thin steel wires are positioned in the outer gaps of two adjacent first thick steel wires, and 12 first thick steel wires are symmetrically twisted on the outermost side of the central strand 1. The number of steel wires in the central strand 1 is large, so that the overall flexibility of the steel wire rope is improved; in addition, the filling density is high, the metal area is increased, and the breaking tension is correspondingly improved, so that the comprehensive performance of the steel wire rope is better. Meanwhile, the central steel wire, the thick steel wires and the thin steel wires are in surface contact through compaction during manufacturing, and breaking tension performance of the steel wire rope is improved.
Preferably, the first layer strands 2, the second layer large strands 3 and the second layer small strands 4 each comprise 1 central steel wire, 10 thin steel wires, 5 middle thin steel wires and 10 thick steel wires; the 5 thin steel wires wrap and twist the central steel wire, 5 middle thin steel wires and 5 thin steel wires are arranged on the outer layer of the central steel wire in a staggered wrapping and twisting mode, and 10 thick steel wires are symmetrically wrapped and twisted on the outermost side of the inner layer strand. The central steel wire, the thin steel wires, the medium thin steel wires and the thick steel wires are in surface contact, so that the breaking tension performance of the steel wire rope is improved.
Preferably, filling layers impregnated with lubricating grease are filled between the central strand 1 and each of the first layer strands 2, between each of the first layer strands 2 and the second layer large strand 3 and the second layer small strand 4, and between the outer layer strands 5 and the second layer large strand 3 and the second layer small strand 4. The filling layer is preferably a sponge core material layer, the sponge core material layer has adsorbability, the wear resistance and the corrosion resistance of the steel wire rope are greatly improved, and the service life of the steel wire rope is long. Preferably, the outer surface of the outer layer strands 5 is plated with a zinc layer, which increases the wear resistance of the steel cord.
Preferably, the diameter of the central strand 1 is larger than the diameter of the first layer strand 2, the diameter of the first layer strand 2 is larger than the diameter of the outer layer strand 5, the diameter of the outer layer strand 5 is larger than the diameter of the second layer large strand 3, and the diameter of the second layer large strand 3 is larger than the diameter of the second layer small strand 4. Bonding the outer ply 5 comprises 16 plies. Therefore, the outer layer strands 5 are large in number, the inner layer rope is large in diameter, the smaller the torsion moment M is, and the better the anti-rotation performance of the steel wire rope is.
Therefore, the crawler crane high-resistance rotation performance steel wire rope provided by the utility model ensures that the steel wire rope has excellent rotation resistance through planning arrangement of the interactive twisting direction of the steel wire rope, and simultaneously reduces the contact stress between the steel wires, so that the performance of the steel wire rope is better. Meanwhile, the rotation moment of the outer strand 5 is increased by reducing the lay length multiple of the outer strand 5, so that the inhibiting effect on the rotation moment of the steel wire rope is increased, and the rotation moment of the steel wire rope is weakened. Meanwhile, the strands are wrapped and compacted, so that a surface contact structure is formed, the effective area of metal in the steel wire rope is increased, the contact surface of the steel wire rope is large when the steel wire rope is used, the abrasion resistance is greatly improved compared with that of a common round strand steel wire rope with the same diameter, and meanwhile, the impact load resistance and the rotation resistance are also greatly enhanced.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model.
Claims (9)
1. The utility model provides a crawler crane high resistance rotation performance wire rope which characterized in that: it comprises an inner layer of sub-rope and an outer layer of sub-rope;
the inner layer sub-rope comprises a central strand, a predetermined number of first layer strands, a predetermined number of second layer large strands and a predetermined number of second layer small strands, the first layer strands are uniformly wrapped and compacted on the peripheral side of the central strand, the second layer large strands are uniformly wrapped and compacted on the peripheral side of the first layer strands, and the second layer small strands are filled between two adjacent second layer large strands;
the outer layer sub-rope comprises a preset number of outer layer strands, and the outer layer strands are uniformly wrapped and compacted on the peripheral side of the inner layer sub-rope;
the center strand, the first layer strand and the outer layer strand are alternately twisted in the same direction, the direction of the second layer large strand and the second layer small strand are opposite to the direction of the center strand, the number of the twist pitches of the center strand, the first layer strand, the second layer large strand and the second layer small strand is the same, and the number of the twist pitches of the outer layer strand is smaller than that of the center strand.
2. The high rotation resistance steel wire rope of the crawler crane according to claim 1, wherein: the center strand comprises 1 strand, the first layer strand, the second layer large strand, and the second layer small strand each comprise 7 strands, and the outer layer strands comprise 16 strands.
3. The high rotation resistance steel wire rope of the crawler crane according to claim 1, wherein: the center thigh includes 1 first center steel wire, 18 first thick steel wires and 6 first thin steel wires, 6 first thick steel wire package twists with fingers symmetrically first center steel wire, 6 first thin steel wire is located the outer clearance of two adjacent first thick steel wires, 12 first thick steel wire package twists with fingers symmetrically center thigh outside.
4. The high rotation resistance steel wire rope of the crawler crane according to claim 1, wherein: the first layer strands, the second layer large strands and the second layer small strands respectively comprise 1 central steel wire, 10 thin steel wires, 5 middle thin steel wires and 10 thick steel wires; the 5 thin steel wires wrap and twist the central steel wire, 5 middle thin steel wires and 5 thin steel wires are arranged on the outer layer of the central steel wire in a staggered wrapping and twisting mode, and 10 thick steel wires are symmetrically wrapped and twisted on the outermost side of the inner layer strand.
5. The high rotation resistance steel wire rope of the crawler crane according to claim 1, wherein: filling layers soaked by lubricating grease are filled between the central strand and each first layer strand, between each first layer strand and the second layer large strand and the second layer small strand, and between the outer layer strand and the second layer large strand and the second layer small strand.
6. The high rotation resistance steel wire rope of the crawler crane according to claim 1, wherein: and the outer side surface of the outer layer strand is plated with a zinc layer.
7. The high rotation resistance steel wire rope of the crawler crane according to claim 1, wherein: the central strand, the first layer strand, the second layer large strand, the second layer small strand and the outer layer strand are in surface contact.
8. The high rotation resistance steel wire rope of the crawler crane according to claim 1, wherein: the diameter of the central strand is greater than that of the outer strands, the diameter of the outer strands is greater than that of the first layer strands, the diameter of the outer strands is greater than that of the second layer large strands, and the diameter of the second layer large strands is greater than that of the second layer small strands.
9. The high rotation resistance steel wire rope of the crawler crane according to claim 1, wherein: the central strands and the first layer strands are twisted in a right-hand alternating manner, the second layer large strands and the second layer small strands are twisted in a left-hand alternating manner, and the outer layer strands are twisted in a right-hand alternating manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121945664.7U CN215829137U (en) | 2021-08-18 | 2021-08-18 | High-resistance rotation performance steel wire rope of crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121945664.7U CN215829137U (en) | 2021-08-18 | 2021-08-18 | High-resistance rotation performance steel wire rope of crawler crane |
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| Publication Number | Publication Date |
|---|---|
| CN215829137U true CN215829137U (en) | 2022-02-15 |
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|---|---|---|---|
| CN202121945664.7U Active CN215829137U (en) | 2021-08-18 | 2021-08-18 | High-resistance rotation performance steel wire rope of crawler crane |
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| Country | Link |
|---|---|
| CN (1) | CN215829137U (en) |
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2021
- 2021-08-18 CN CN202121945664.7U patent/CN215829137U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 151, Furong Zhongsan Road, Xishan Economic Development Zone, Xishan District, Wuxi City, Jiangsu Province, 214000 Patentee after: Jiangsu Saifutian Group Co.,Ltd. Country or region after: China Address before: No. 151, Furong Zhongsan Road, Xishan Economic Development Zone, Xishan District, Wuxi City, Jiangsu Province, 214000 Patentee before: JIANGSU SAFETY STEEL WIRE ROPE Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |