CN218910722U - Blended bending-resistant fatigue cable - Google Patents
Blended bending-resistant fatigue cable Download PDFInfo
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- CN218910722U CN218910722U CN202222609399.6U CN202222609399U CN218910722U CN 218910722 U CN218910722 U CN 218910722U CN 202222609399 U CN202222609399 U CN 202222609399U CN 218910722 U CN218910722 U CN 218910722U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a blended bending fatigue-resistant cable, which comprises a cable body and strands, wherein the cable body is formed by weaving a plurality of strands, the strands comprise ultrahigh molecular weight polyethylene fibers and temperature-resistant fibers, the strands are formed by interweaving and blending the ultrahigh molecular weight polyethylene fibers and the temperature-resistant fibers, the temperature-resistant fibers comprise aramid fibers and polyarylate fibers, and the strands are formed by interweaving and blending the ultrahigh molecular weight polyethylene fibers with one or more of the aramid fibers and the polyarylate fibers, so that the application problem of the high-strength and high-modulus fiber cable under the bending fatigue working condition is solved by combining the respective advantages.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a blended bending-resistant fatigue cable.
Background
Fiber ropes made of high-strength, high-modulus polymeric fiber materials, such as ultra-high molecular weight polyethylene ropes and aramid ropes, are widely used in a variety of special applications. In special application scenarios, the fiber ropes are often subject to damage from bending fatigue conditions, resulting in unexpected, premature failure. Bending fatigue of a fiber rope refers to the process of reciprocating the fiber rope over a relatively smooth arcuate surface to produce losses or even breakage. The bending fatigue phenomenon of the fiber rope mainly occurs in working conditions requiring the rope to bend reciprocally, such as deep sea exploration winch ropes, oil and gas exploitation positioning ropes and the like on scientific investigation ships.
The existing ultra-high molecular weight polyethylene fiber has excellent dynamic fatigue performance, and can resist friction failure among fibers caused by reciprocating bending. However, the ultra-high molecular weight polyethylene material itself has poor temperature resistance, and the heat generated by the reciprocating bending of the cable can rapidly damage the ultra-high molecular weight polyethylene, thereby reducing the strength thereof. Whereas the characteristics of the aramid fiber cable are substantially the same as those of the ultra-high molecular weight polyethylene: the aramid fiber material has poor friction resistance and compression resistance, so that the dynamic performance is poor, and the performance is particularly poor in bending fatigue resistance. However, the aramid fiber material has good temperature resistance, and the influence of heat generated by the reciprocating bending of the cable on the aramid fiber cable is small. The polyarylate fiber and the aramid fiber have similar physical and mechanical properties, and also have the characteristics of high temperature resistance, creep resistance and dynamic fatigue resistance.
At present, a good bending fatigue resistance solution is not provided for a pure ultra-high molecular weight polyethylene rope, and bending fatigue damage is usually relieved by improving the use condition in industrial application, such as external means of cooling a bending part, increasing the bending radius and the like.
Disclosure of Invention
The utility model aims to provide a blended bending fatigue-resistant cable, which solves the application problem of a high-strength and high-modulus fiber cable under the bending fatigue working condition by combining the advantages of ultra-high molecular weight polyethylene, aramid fiber and polyarylate fiber through blending.
The technical aim of the utility model is realized by the following technical scheme:
the utility model provides a bending fatigue cable is able to bear or endure in blending, includes cable body and strand, the cable body is formed through a plurality of the strand is woven, the strand includes ultra high molecular weight polyethylene fiber and temperature resistant fibre, the strand is formed through ultra high molecular weight polyethylene fiber and the crisscross blending of temperature resistant fibre, temperature resistant fibre includes aramid fiber and polyarylate fibre, the strand is formed through one or more of ultra high molecular weight polyethylene fiber and aramid fiber and polyarylate fibre crisscross blending.
Preferably, the ultra-high molecular weight polyethylene fiber in the strand can be blended with the aramid fiber, the polyarylate fiber and both the aramid fiber and the polyarylate fiber
Preferably, the linear density of the ultra-high molecular weight polyethylene fiber is 800D-3200D, the linear density of the aramid fiber is 800D-1500D, and the linear density of the polyarylate fiber is 800D-1500D.
Preferably, the ultra-high molecular weight polyethylene fiber accounts for 25-75% of the volume of the cable body.
Preferably, the braiding distance of the cable body is 7-8 times the diameter.
Preferably, the twist of the strands of a single strand is 18-30 twists/meter.
Preferably, the cable body braid structure comprises 3, 4, 6, 8, 12 and 16 strands.
The beneficial effects are that: the existing ultra-high molecular weight polyethylene, aramid fiber and polyarylester blended bending-resistant fatigue cable is subjected to blending, so that the use working condition and the use environment do not need to be changed, smaller bending radius can be adapted, the volume of working condition equipment is reduced, no extra cooling means is needed, and the ultra-high molecular weight polyethylene blended bending-resistant fatigue cable has better temperature resistance, bending fatigue resistance and creep resistance than the traditional ultra-high molecular weight polyethylene cable.
Drawings
FIG. 1 is a schematic view of the structure of a cable body;
FIG. 2 is a schematic cross-sectional view showing the ultra-high molecular weight polyethylene blended with the aramid fiber and the polyarylate fiber;
FIG. 3 is a schematic cross-sectional view showing the ultra-high molecular weight polyethylene blended with aramid fiber;
fig. 4 is a schematic cross-sectional view for showing the ultra-high molecular weight polyethylene blended with the polyarylate fiber.
Reference numerals: 1. a cable body; 2. strands; 3. ultra-high molecular weight polyethylene fibers; 4. an aramid fiber; 5. polyarylate fibers.
Detailed Description
The following description is only of the preferred embodiments of the present utility model, and the scope of the present utility model should not be limited to the examples, but should be construed as falling within the scope of the present utility model. It should also be noted that modifications and adaptations to those skilled in the art without departing from the principles of the present utility model are intended to be comprehended within the scope of the present utility model.
As shown in fig. 1 to 4, the blended bending fatigue-resistant cable comprises a cable body 1 and a rope strand 2, wherein the cable body 1 is formed by weaving a plurality of rope strands 2, the rope strand comprises ultrahigh molecular weight polyethylene fibers and temperature-resistant fibers, the rope strand 2 is formed by interweaving ultrahigh molecular weight polyethylene fibers 3 and temperature-resistant fibers, the temperature-resistant fibers comprise aramid fibers 4 and polyarylate fibers 5, and the rope strand 2 is formed by interweaving one or more of the ultrahigh molecular weight polyethylene fibers 3, the aramid fibers 4 and the polyarylate fibers 5.
Example 1, ultra high molecular weight polyethylene fiber 3+ aramid fiber 4 and polyarylate fiber 5
Referring to fig. 2, in the twisting process, the ultra-high molecular weight polyethylene fiber 3, the aramid fiber 4 and the polyarylate fiber 5 are mixed according to a certain proportion to form a blended yarn, so that the strand 2 can combine the advantages of the three, and then the multi-strand 2 is woven into the cable body 1, and the strength of the cable body 1 can be improved by utilizing the multi-strand structure of the multi-strand rope 2.
The strand 2 is formed by twisting 10 ultra-high molecular weight polyethylene fibers 3, 8 aramid fibers 4 and 7 polyarylate fibers 5 together, the single strand 2 is divided into two steps during forming, firstly, 10 ultra-high molecular weight polyethylene fibers 3, 8 aramid fibers 4 and 7 polyarylate fibers 5 are selected to be mutually staggered and mounted on a yarn guiding disc in the twisting process of the strand 2, wherein the linear density of the ultra-high molecular weight polyethylene fibers 3 is 1600D, the linear density of the aramid fibers 4 is 1500D, the linear density of the polyarylate fibers is 1500D, and the ultra-high molecular weight polyethylene fibers 3 account for 50% of the volume of the fine strand 2. The twist of the strand 2 in the twisting step is 18 to 30 twists/m.
After the completion of the production of the strands 2, the cable body 1 is produced by the strands 2, 6 strands are produced by the strands 2 in the S-twist direction and the Z-twist direction, and then the 6 strands 2 in the S-twist direction and the Z-twist direction are woven into the 12-strand cable body 1. The diameter of the cable body 1 is 10mm, and the braiding distance of the cable body 1 is 75-80mm.
The ultra-high molecular weight polyethylene fiber 3 is a third generation special fiber in the current world, has the strength of up to 30.8cN/dtex, has the highest specific strength in chemical fiber, and has good performances of wear resistance, impact resistance, corrosion resistance, light resistance and the like. It can be directly made into ropes, cables, fishing nets and various fabrics, such as bulletproof vests, clothes, cutting-proof gloves, etc., wherein the bulletproof effect of the bulletproof vests is better than that of aramid fibers. Compared with other engineering plastics, the ultra-high molecular weight polyethylene (UHMW-PE) has the defects of low surface hardness, low heat distortion temperature, poor bending strength, poor creep property and the like, so that a pure ultra-high molecular weight polyethylene cable is difficult to meet the severe bending fatigue working condition requirement.
Whereas the characteristics of the aramid fiber 4 and the polyarylate fiber 5 are substantially opposite to those of the ultra-high molecular weight polyethylene: the aramid fiber material has poor friction resistance and compression resistance, so that the dynamic performance is poor, and the performance is particularly poor in bending fatigue resistance. However, the aramid fiber material has good temperature resistance, the influence of heat generated by reciprocating bending of the cable on the aramid fiber cable is small, and compared with a cable woven by single ultra-high molecular weight polyethylene fiber 3, aramid fiber 4 and polyarylate fiber 5, the cable formed by blending the ultra-high molecular weight polyethylene fiber 3, the aramid fiber 4 and the polyarylate fiber 5 effectively reduces friction force generated during reciprocating bending among the fibers and strength loss caused by heating.
By spacing the ultra-high molecular weight polyethylene fiber 3, the aramid fiber 4 and the polyarylate fiber 5 from each other, the friction effect of the aramid fiber and the polyarylate is eliminated or reduced, thereby reducing the friction loss of the aramid fiber 4 and the polyarylate fiber 5 and prolonging the service lives of the aramid fiber 4 and the polyarylate fiber 5. When heat is generated by reciprocating bending, the ultra-high molecular weight polyethylene fiber 3 can be subjected to strong loss due to heating, and the aramid fiber 4 and the polyarylate fiber 5 which are not influenced by the heating force can bear more cable tension, so that the load of the ultra-high molecular weight polyethylene fiber 3 is lightened, and the strength of the cable is not reduced.
Example 2 ultra high molecular weight polyethylene+aramid
Referring to fig. 3, in the twisting process, the ultra-high molecular weight polyethylene fiber 3 and the aramid fiber 4 are mixed according to a certain proportion to form a blended yarn, so that the strand 2 can combine the advantages of the ultra-high molecular weight polyethylene fiber and the aramid fiber, and the multi-strand 2 is woven into the cable body 1, so that the strength of the cable body 1 can be improved by utilizing the multi-strand structure of the multi-strand rope 2.
The strand 2 is formed by twisting 10 ultra-high molecular weight polyethylene fibers 3 and 15 aramid fibers 4 together, the single strand 2 is divided into two steps during forming, firstly, in the twisting process of the strand 2, 10 ultra-high molecular weight polyethylene fibers 3 and 15 aramid fibers 4 are firstly selected and are mutually staggered to be arranged on a yarn guiding disc, wherein the linear density of the ultra-high molecular weight polyethylene fibers 3 is 1600D, the linear density of the aramid fibers 4 is 1500D, and the ultra-high molecular weight polyethylene fibers 3 account for 50% of the volume of the fine strand 2. The twist of the strand 2 in the twisting step is 18 to 30 twists/m.
After the completion of the production of the strands 2, the cable body 1 is produced by the strands 2, 6 strands are produced by the strands 2 in the S-twist direction and the Z-twist direction, and then the 6 strands 2 in the S-twist direction and the Z-twist direction are woven into the 12-strand cable body 1. The diameter of the cable body 1 is 10mm, and the braiding distance of the cable body 1 is 75-80mm.
In each single strand 2, the ultra-high molecular weight polyethylene fiber 3 and the aramid fiber 4 are spaced apart from each other, thereby preventing the ultra-high molecular weight polyethylene fiber 3 from being strongly lost by heat when the ultra-high molecular weight polyethylene fiber 3 is bent back and forth to generate heat.
Example 3 ultra high molecular weight polyethylene+polyarylate fiber
In the twisting process, as shown in fig. 4, the ultra-high molecular weight polyethylene fiber 3 and the polyarylate fiber 5 are mixed according to a certain proportion to form a blended yarn, so that the strand 2 can combine the advantages of the ultra-high molecular weight polyethylene fiber 3 and the polyarylate fiber, the multi-strand 2 is woven into the cable body 1, and the strength of the cable body 1 can be improved by utilizing the multi-strand structure of the multi-strand woven rope.
The strand 2 is formed by twisting 10 ultra-high molecular weight polyethylene fibers 3 and 22 polyarylate fibers 5 together, the single strand 2 is divided into two steps during forming, firstly, in the twisting process of the strand 2, 10 ultra-high molecular weight polyethylene fibers 3 and 22 polyarylate fibers 5 are selected and mounted on a yarn guiding disc in a staggered manner, wherein the linear density of the ultra-high molecular weight polyethylene fibers 3 is 1600D, the linear density of the polyarylate fibers 5 is 1000D, and the ultra-high molecular weight polyethylene fibers 3 account for 50% of the volume of the fine strand 2. The twist of the strand 2 in the twisting step is 18 to 30 twists/m.
After the completion of the production of the strands 2, the cable body 1 is produced by the strands 2, 6 strands are produced by the strands 2 in the S-twist direction and the Z-twist direction, and then the 6 strands 2 in the S-twist direction and the Z-twist direction are woven into the 12-strand cable body 1. The diameter of the cable body 1 is 10mm, and the braiding distance of the cable body 1 is 75-80mm.
The ultra-high molecular weight polyethylene fiber 3 and the polyarylate fiber 5 are spaced apart from each other in each single strand 2, thereby preventing the ultra-high molecular weight polyethylene fiber 3 from being strongly lost by heat when the ultra-high molecular weight polyethylene fiber 3 is bent back and forth to generate heat.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. The utility model provides a bending fatigue cable is able to bear or endure in blending, includes cable body (1) and strand (2), its characterized in that, cable body (1) is through a plurality of strand (2) are woven and are formed, strand (2) include ultra high molecular weight polyethylene fiber (3) and temperature resistant fibre, strand (2) are woven through ultra high molecular weight polyethylene fiber (3) and the crisscross blending of temperature resistant fibre and are formed, temperature resistant fibre includes aramid fiber (4) and polyarylate fiber (5), strand (2) are woven through one or more of ultra high molecular weight polyethylene fiber (3) and aramid fiber (4) and polyarylate fiber (5) the crisscross blending.
2. A blended flex fatigue resistant cable according to claim 1, wherein the ultra high molecular weight polyethylene fibers (3) in the strands (2) are blended with the aramid fibers (4), or the polyarylate fibers (5), or both the aramid fibers (4) and the polyarylate fibers (5).
3. A blended bending fatigue resistant cable according to claim 1, wherein the ultra high molecular weight polyethylene fiber (3) has a linear density of 800D-3200D, the aramid fiber (4) has a linear density of 800D-1500D, and the polyarylate fiber (5) has a linear density of 800D-1500D.
4. A blended bending fatigue resistant cable according to claim 1, wherein the ultra high molecular weight polyethylene fibres (3) comprise 25-75% of the volume of the cable body (1).
5. A blended bending fatigue resistant cable according to claim 1, wherein the braiding pitch of the cable body (1) is 7-8 times the diameter.
6. A blended flex fatigue cable according to claim 1, wherein the twist of the individual strands (2) is 18-30 twist/meter.
7. A blended bending fatigue resistant cable according to claim 1, wherein the cable body (1) braided structure comprises 3, 4, 6, 8, 12 and 16 strands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222609399.6U CN218910722U (en) | 2022-09-30 | 2022-09-30 | Blended bending-resistant fatigue cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222609399.6U CN218910722U (en) | 2022-09-30 | 2022-09-30 | Blended bending-resistant fatigue cable |
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| Publication Number | Publication Date |
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| CN218910722U true CN218910722U (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222609399.6U Active CN218910722U (en) | 2022-09-30 | 2022-09-30 | Blended bending-resistant fatigue cable |
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| CN (1) | CN218910722U (en) |
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- 2022-09-30 CN CN202222609399.6U patent/CN218910722U/en active Active
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