A lightweight high-strength ultra-high molecular weight rope core

Abstract

The utility model provides a kind of lightweight high-strength ultrahigh molecular rope core, belong to steel wire rope core technical field.The lightweight high-strength ultrahigh molecular rope core includes a ultrahigh molecular weight polyethylene inner core, multiple ultrahigh molecular weight polyethylene skeleton, multiple inner layer steel wire, multiple outer layer steel wire, multiple oil-containing triangular natural fiber filling core, multiple arc synthetic fiber core, multiple oil-containing triangular natural fiber core, a flexible layer and a wear-resistant layer, the flexible layer and wear-resistant layer are provided with multiple through holes.The above-mentioned structure is combined to realize the effective balance of lightweight and high strength, so that the rope core maintains structural integrity during stretching, bending and twisting process, is lightweight and high-strength, has high bearing stability, wear resistance, fatigue resistance and self-lubricating properties, thereby significantly improving the performance and service life of the manufactured steel wire rope.

Description

Technical Field

[0001] This utility model relates to the field of wire rope core technology, specifically to a lightweight and high-strength ultra-high molecular weight polymer rope core. Background Technology

[0002] Steel wire rope is a helical bundle of steel wires twisted together according to certain rules, meeting specific mechanical properties and geometric dimensions. It consists of steel wires, a core, and lubricant. Steel wire rope possesses advantages such as high strength, light weight, stable operation, resistance to sudden breakage, and reliable use, making it widely used in metallurgy, mining, oil and gas drilling, machinery, chemical industry, aerospace, and other fields. The quality of the steel wire rope directly affects its performance, and the core, as the core component, is a crucial element in ensuring the overall quality and reliability of the steel wire rope.

[0003] In existing technologies, the core structure of wire ropes is mostly composed of a single material, such as a fiber core or a metal core. While these materials can provide some support and cushioning, they still suffer from insufficient flexibility, limited load-bearing capacity, and poor structural stability, making it difficult to meet the demands for lightweight, high-strength, wear-resistant, fatigue-resistant, and long-life wire ropes in complex operating environments. Therefore, improving the structural design of the core and enhancing its overall performance is an effective way to improve the overall performance of wire ropes. In this regard, it is necessary to provide a lightweight, high-strength ultra-high molecular weight polymer (UHMWPE) core that balances lightweight and high-strength performance with flexibility and stability, ensuring load-bearing capacity while also possessing better wear resistance and fatigue resistance. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, this utility model provides a lightweight and high-strength ultra-high molecular weight polymer rope core, which effectively improves some of the problems of insufficient strength of traditional steel wire rope cores.

[0005] A lightweight, high-strength ultra-high molecular weight polyethylene (UHMWPE) rope core comprises an UHMWPE inner core, multiple UHMWPE skeletons, multiple inner steel wires, multiple outer steel wires, multiple oil-containing triangular natural fiber filling cores, multiple fan-shaped synthetic fiber cores, multiple oil-containing triangular natural fiber cores, a flexible layer, and a wear-resistant layer. The multiple UHMWPE skeletons are uniformly connected and arranged on the outside of the UHMWPE inner core. The inner steel wires are arranged in a ring around the outside of the UHMWPE inner core and between the UHMWPE skeletons. The outer steel wires are arranged in a ring around the outside of the inner steel wires, with two outer steel wires grouped together within the UHMWPE skeletons. The flexible layer is wrapped around the outer steel wire and the outer side of the ultra-high molecular weight polyethylene skeleton. The flexible layer includes multiple arc-shaped flexible parts connected end to end. The wear-resistant layer is wrapped around the outer side of the flexible layer. The triangular natural fiber filling core fills the gap between the outer steel wire and the inner steel wire between the two ultra-high molecular weight polyethylene skeletons. The fan-shaped synthetic fiber core is disposed in the gap between the two outer steel wires near the flexible layer between the two ultra-high molecular weight polyethylene skeletons. The triangular natural fiber core is disposed in the gap between the ultra-high molecular weight polyethylene skeleton and the outer steel wire near the flexible layer. The flexible layer and the wear-resistant layer are provided with multiple through holes.

[0006] Preferably, a ring of fine steel wire is arranged inside the ultra-high molecular weight polyethylene core.

[0007] Preferably, the fan-shaped synthetic fiber core is a polyamide fiber core, a polyester fiber core, or a polypropylene fiber core.

[0008] Preferably, the triangular natural fiber filling core is an oil-containing sisal fiber core, jute fiber core, or cotton fiber core.

[0009] Preferably, the flexible layer is a natural rubber flexible layer, a nitrile rubber flexible layer, or a thermoplastic polyurethane elastomer flexible layer.

[0010] Preferably, the wear-resistant layer is a polyurethane wear-resistant layer, an ultra-high molecular weight polyethylene wear-resistant coating, or a polyamide wear-resistant coating.

[0011] Preferably, the through holes are evenly distributed along the longitudinal direction of the rope core and are connected to the triangular natural fiber core.

[0012] Preferably, the number of inner steel wires is 6 and the number of outer steel wires is 12.

[0013] Preferably, the diameter of the through hole is 0.1 mm.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This utility model provides a lightweight and high-strength ultra-high molecular weight polyethylene rope core, which includes an ultra-high molecular weight polyethylene inner core, multiple ultra-high molecular weight polyethylene skeletons, multiple inner steel wires, multiple outer steel wires, multiple oil-containing triangular natural fiber filling cores, multiple fan-shaped synthetic fiber cores, multiple oil-containing triangular natural fiber cores, a flexible layer, and a wear-resistant layer. Utilizing the lightweight and high-strength properties of an ultra-high molecular weight polyethylene (UHMWPE) core and multiple UHMWPE skeletons, it not only effectively reduces the overall weight, but also provides stable support between the inner and outer steel wires, preventing stress concentration and improving load-bearing stability. It also enhances the strength, flexibility, and fatigue resistance of the rope core, allowing it to maintain structural integrity and resist breakage or deformation during repeated bending, stretching, and torsion. The multiple outer and inner steel wires are arranged in a ring, with multiple fan-shaped synthetic fiber cores filling the gaps between the outer steel wires. This not only buffers and reduces friction but also restricts and positions the outer steel wires, making their arrangement more compact and orderly. Multiple oil-impregnated triangular natural fiber filling cores fill the gaps between the inner and outer steel wires. The fiber core fills the gaps between multiple outer steel wires and multiple ultra-high molecular weight polyethylene skeletons. Both provide lubrication and cushioning while filling, reducing friction between steel wires and improving wear resistance and fatigue resistance. The flexible layer is composed of multiple arc-shaped flexible parts connected end to end. During the production of the wire rope, this flexible layer allows the core to form a tighter fit with the outer strands, making the connection between the core and the outer strands more stable and less prone to loosening when the core is woven into the wire rope. The wear-resistant layer covers the outside of the flexible layer, significantly improving the overall wear resistance and corrosion resistance of the core. At the same time, the through holes in the flexible and wear-resistant layers allow the grease in the oil-containing triangular natural fiber core to gradually seep out to the outside, thus lubricating the strands of the wire rope after it is made from the core, improving overall lubricity and extending the service life of the wire rope. Therefore, this rope core not only achieves lightweight and high strength performance, but also has the advantages of high load-bearing stability, high flexibility, wear resistance, fatigue resistance, corrosion resistance and self-lubrication, which greatly improves the performance and service life of the steel wire rope. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the lightweight and high-strength ultra-high molecular weight rope core described in this utility model. Figure 2 A schematic diagram of the transverse cross-sectional structure of the lightweight and high-strength ultra-high molecular weight rope core of this utility model with a through hole. in: 10-Ultra-high molecular weight polyethylene inner core, 20-Ultra-high molecular weight polyethylene skeleton, 30-Inner steel wire, 40-Outer steel wire, 50-Triangular natural fiber filling core, 60-Fan-shaped synthetic fiber core, 70-Triangular natural fiber core, 80-Flexible layer, 90-Wear-resistant layer, 11-Through hole, 12-Fine steel wire. Detailed Implementation

[0016] The embodiments described below are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0017] See Figure 1 as well as Figure 2 This embodiment provides a lightweight, high-strength ultra-high molecular weight polyethylene (UHMWPE) rope core, comprising an UHMWPE inner core 10, multiple UHMWPE skeletons 20, multiple inner steel wires 30, multiple outer steel wires 40, multiple oil-containing triangular natural fiber filling cores 50, multiple fan-shaped synthetic fiber cores 60, multiple oil-containing triangular natural fiber cores 70, a flexible layer 80, and a wear-resistant layer 90. The multiple UHMWPE skeletons 20 are uniformly connected and arranged outside the UHMWPE inner core 10. The inner steel wires 30 are arranged in a ring around the outside of the UHMWPE inner core 10 and between the UHMWPE skeletons 20. The outer steel wires 40 are arranged in a ring around the outside of the inner steel wires 30, with two outer steel wires 40 grouped together between the UHMWPE skeletons 20. The flexible layer 80 is wrapped around the outer steel wire 40 and the outer side of the ultra-high molecular weight polyethylene skeleton 20. The flexible layer 80 includes a plurality of arc-shaped flexible parts connected end to end. The wear-resistant layer 90 is wrapped around the outer side of the flexible layer 80. The triangular natural fiber filling core 50 fills the gap between the two outer steel wires 40 and the inner steel wire 30 between the two ultra-high molecular weight polyethylene skeletons 20. The fan-shaped synthetic fiber core 60 is disposed in the gap between the two outer steel wires 40 near the flexible layer 80 between the two ultra-high molecular weight polyethylene skeletons 20. The triangular natural fiber core 70 is disposed in the gap between the ultra-high molecular weight polyethylene skeleton 20 and the outer steel wire 40 near the flexible layer 80. The flexible layer 80 and the wear-resistant layer 90 are provided with a plurality of through holes 11.

[0018] Preferably, a ring of fine steel wires 12 is arranged within the inner circumference of the ultra-high molecular weight polyethylene (UHMWPE) core 10. These fine steel wires 12 enhance the tensile strength and structural stability of the UHMWPE core 10, making it less prone to deformation or localized compression when subjected to large tensile forces, thus ensuring uniform stress distribution throughout the rope core. Simultaneously, the fine steel wires 12 within the UHMWPE core 10 work synergistically with the surrounding UHMWPE skeleton 20 to effectively disperse the stress on the inner steel wires 30 and outer steel wires 40, further improving the load-bearing capacity and service life of the rope core.

[0019] Preferably, the fan-shaped synthetic fiber core 60 is a polyamide fiber core, a polyester fiber core, or a polypropylene fiber core. The fan-shaped synthetic fiber core 60, positioned in the gap between the outer steel wire 40 and the ultra-high molecular weight polyethylene skeleton 20, not only effectively fills the space and reduces friction between the outer steel wires 40 during use, but also transfers local stress to the fan-shaped synthetic fiber core 60 when the outer steel wires 40 are under stress, reducing the peak stress borne by a single steel wire and thus lowering the risk of local overload. Furthermore, it ensures that the outer steel wires 40 remain tightly packed during tension and torsion, preventing displacement or bending, thereby improving the overall load-bearing capacity of the rope core.

[0020] Preferably, the triangular natural fiber filling core 50 and the triangular natural fiber core 70 are sisal fiber cores, jute fiber cores, or cotton fiber cores that are fully impregnated with grease. The triangular natural fiber filling core 50 and the triangular natural fiber core 70 can not only effectively fill the space and prevent friction between steel wires, but also provide cushioning, vibration reduction, and lubrication, thereby improving the wear resistance and fatigue resistance of the rope core.

[0021] Preferably, the flexible layer 80 is a natural rubber flexible layer 80, a nitrile rubber flexible layer 80, or a thermoplastic polyurethane elastomer flexible layer 80. This flexible layer 80 surrounds the outer steel wire 40, providing excellent elastic cushioning when the wire rope is subjected to bending, tensile, and vibration loads. It reduces friction and stress concentration between the strands of the outer steel wire 40 and the core, thereby effectively extending the service life of the wire rope. Simultaneously, the flexible layer 80 enhances the bonding tightness between the core and the strands of the outer steel wire 40, making the wire rope structure more stable and improving overall fatigue resistance and tensile strength.

[0022] Preferably, the wear-resistant layer 90 is a polyurethane wear-resistant layer 90, an ultra-high molecular weight polyethylene wear-resistant coating, or a polyamide wear-resistant coating. The wear-resistant layer 90 provides high-strength surface protection between the core and the outer strands of the wire rope under repeated bending, stretching, and friction conditions, significantly improving the wear resistance and service life of the wire rope.

[0023] Preferably, the through holes 11 are evenly distributed in multiple rows along the longitudinal direction of the rope core, each row containing multiple through holes 11, and communicating with the triangular natural fiber core 70. This allows the lubricating oil in the internal oil-containing fiber core to gradually seep out through the through holes 11 to the surface of the rope core and between it and the steel wire rope strands covering its outer periphery, achieving the self-lubricating function of the steel wire rope, reducing friction and wear between the steel wire ropes, and maintaining the flexibility and operational stability of the steel wire rope during long-term use.

[0024] Preferably, the number of inner steel wires 30 is 6, the number of outer steel wires 40 is 12, and the number of ultra-high molecular weight polyethylene skeletons 20 is 6.

[0025] Preferably, the diameter of the through hole 11 is 0.1 mm. This size ensures that grease can slowly and continuously seep out from the oil-containing triangular natural fiber core 70 to achieve self-lubrication of the rope core, while maintaining the structural integrity of the wear-resistant layer 90 and the flexible layer 80, without affecting the strength and wear resistance of the rope core.

[0026] The lightweight and high-strength ultra-high molecular weight polyethylene (UHMWPE) rope core provided by this utility model utilizes the lightweight and high-strength characteristics of the UHMWPE inner core 10 and multiple UHMWPE skeletons 20. This not only effectively reduces the overall weight, but also provides stable support between the multiple inner steel wires 30 and the multiple outer steel wires 40, preventing stress concentration on the steel wires and improving load-bearing stability. Simultaneously, the UHMWPE inner core 10 and the multiple UHMWPE skeletons 20 enhance the rope core's strength, flexibility, and fatigue resistance, allowing the rope core to maintain structural integrity during repeated bending, stretching, and torsion, making it less prone to breakage or deformation. The multiple outer steel wires 40 and multiple inner steel wires 30 are arranged in a ring, and the multiple fan-shaped synthetic fiber cores 60 fill the gaps between the multiple outer steel wires 40, not only providing a buffering and friction-reducing effect, but also restricting and positioning the multiple outer steel wires 40, making their arrangement more compact and orderly. Multiple oil-containing triangular natural fiber filling cores 50 fill the multiple inner steel wires 30. The gaps between the multiple outer steel wires 40 and the multiple ultra-high molecular weight polyethylene skeletons 20 are filled by multiple oil-impregnated triangular natural fiber cores 70. Both provide lubrication and cushioning while filling, reducing friction between the steel wires and improving wear resistance and fatigue resistance. The flexible layer 80 is composed of multiple arc-shaped flexible parts connected end to end. During the process of making the wire rope from the core, this flexible layer 80 allows for a tighter fit between the core and the outer strands. This design ensures a more stable connection between the core and the surrounding strands when the core is braided into a wire rope, preventing it from loosening. The wear-resistant layer 90 covers the outside of the flexible layer 80, significantly improving the overall wear resistance and corrosion resistance of the core. Simultaneously, the through holes 11 on the flexible layer 80 and the wear-resistant layer 90 allow the grease in the internal oil-containing triangular natural fiber core 70 to gradually seep to the outside, thus lubricating the strands of the wire rope after it is made from the core, improving overall lubrication, and extending the service life of the wire rope. Therefore, this core not only achieves lightweight and high strength but also possesses advantages such as high load-bearing stability, high flexibility, wear resistance, fatigue resistance, corrosion resistance, and self-lubrication, significantly improving the performance and service life of the manufactured wire rope.

[0027] The above-disclosed embodiments are merely some preferred embodiments of the present utility model, and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model patent application shall still fall within the scope of the present utility model.

Claims

1. A lightweight, high-strength ultra-high molecular weight polymer rope core, characterized in that: It comprises an ultra-high molecular weight polyethylene (UHMWPE) inner core, multiple UHMWPE skeletons, multiple inner steel wires, multiple outer steel wires, multiple oil-containing triangular natural fiber filling cores, multiple fan-shaped synthetic fiber cores, multiple oil-containing triangular natural fiber cores, a flexible layer, and a wear-resistant layer. The multiple UHMWPE skeletons are uniformly connected and arranged outside the UHMWPE inner core. The inner steel wires are arranged in a ring around the outside of the UHMWPE inner core and located between the UHMWPE skeletons. The outer steel wires are arranged in a ring around the outside of the inner steel wires, with two outer steel wires grouped together between the UHMWPE skeletons. The flexible layer wraps around... The flexible layer comprises multiple arc-shaped flexible elements connected end to end, disposed on the outside of the outer steel wire and the ultra-high molecular weight polyethylene skeleton. The wear-resistant layer is wrapped around the outside of the flexible layer. The triangular natural fiber filling core fills the gap between the two outer steel wires and the inner steel wires between the two ultra-high molecular weight polyethylene skeletons. The fan-shaped synthetic fiber core is disposed in the gap between the two outer steel wires near the flexible layer between the two ultra-high molecular weight polyethylene skeletons. The triangular natural fiber core is disposed in the gap between the ultra-high molecular weight polyethylene skeleton and the outer steel wire near the flexible layer. The flexible layer and the wear-resistant layer are provided with multiple through holes.

2. The lightweight, high-strength ultra-high molecular weight polymer rope core as described in claim 1, characterized in that, The inner ring of the ultra-high molecular weight polyethylene core is provided with a thin steel wire.

3. The lightweight, high-strength ultra-high molecular weight polymer rope core as described in claim 1, characterized in that, The fan-shaped synthetic fiber core is a polyamide fiber core, a polyester fiber core, or a polypropylene fiber core.

4. The lightweight, high-strength ultra-high molecular weight polymer rope core as described in claim 1, characterized in that, The triangular natural fiber filling core is an oil-containing sisal fiber core, jute fiber core, or cotton fiber core.

5. The lightweight, high-strength ultra-high molecular weight polymer rope core as described in claim 1, characterized in that, The flexible layer is a natural rubber flexible layer, a nitrile rubber flexible layer, or a thermoplastic polyurethane elastomer flexible layer.

6. The lightweight, high-strength ultra-high molecular weight polymer rope core as described in claim 1, characterized in that, The wear-resistant layer is a polyurethane wear-resistant layer, an ultra-high molecular weight polyethylene wear-resistant coating, or a polyamide wear-resistant coating.

7. The lightweight, high-strength ultra-high molecular weight polymer rope core as described in claim 1, characterized in that, The through holes are evenly distributed along the longitudinal direction of the rope core and are connected to the triangular natural fiber core.

8. The lightweight, high-strength ultra-high molecular weight polymer rope core as described in claim 1, characterized in that, The number of inner steel wires is 6, and the number of outer steel wires is 12.

9. The lightweight, high-strength ultra-high molecular weight polymer rope core as described in claim 1, characterized in that, The diameter of the through hole is 0.1 mm.

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