Lightweight high-strength polyester fiber rope

Abstract

The utility model relates to the technical field of ropes, in particular to a light-weight high-strength polyester fiber rope which sequentially comprises an axial cavity, a double-layer reverse spiral reinforcing belt, an aramid fiber and polyester mixed fiber net, a titanium alloy microfilament three-dimensional woven anti-shearing layer and a woven layer from inside to outside. A self-repairing polyurethane colloid is injected into the titanium alloy microfilament three-dimensional woven anti-shearing layer, the axial cavity is filled with light elastomer microspheres, nickel-plated aramid composite fibers are embedded into the double-layer reverse spiral reinforcing belt, the outer surface of the woven layer is coated with an anti-corrosion layer, the outer surface of the anti-corrosion layer is coated with a wear-resisting layer, and the outer surface of the wear-resisting layer is coated with a wear-resisting layer. The axial cavity is filled with the light elastomer microspheres, the overall weight is reduced, meanwhile, the balance of high strength and anti-fatigue performance is achieved through the double-layer reverse spiral reinforcing belt and the aramid fiber and polyester mixed fiber net, stress concentration is further dispersed through elastic buffering of the light elastomer microspheres, the anti-corrosion coating and the nano-ceramic anti-corrosion film achieve synergistic protection, and the anti-fatigue performance is improved. A corrosive medium is blocked.

Description

Technical Field

[0001] This utility model relates to the field of rope technology, specifically a lightweight high-strength polyester fiber rope. Background Technology

[0002] As is well known, traditional ropes mostly use solid cores such as steel cores or single fiber bundle structures. Although they have high strength, their high density and weight limit their application in weight-sensitive scenarios such as aerospace and marine operations. Existing lightweight materials such as polyester fiber and aramid can reduce weight, but their tensile strength and fatigue resistance are difficult to meet the requirements of high dynamic loads. The solid core design results in high overall density, making it difficult to balance the requirements of lightweight and high strength. Single fiber materials such as pure polyester fiber are prone to brittle fracture under extreme loads and lack energy absorption capacity. Traditional ropes are prone to performance degradation due to corrosion, wear, fatigue cracks and other problems during long-term use. Metal core ropes are prone to oxidation in humid or chemical environments, while non-metallic fiber ropes such as polyester fiber are degraded by chemical media. Single-layer braided structures or metal wire wound shear layers are prone to local fracture under repeated friction or impact loads. Therefore, it is necessary to propose solutions to this technical problem. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a lightweight, high-strength polyester fiber rope.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lightweight, high-strength polyester fiber rope, comprising, from the inside out, an axial cavity, a double-layer reverse spiral reinforcing belt, an aramid and polyester mixed fiber web, a titanium alloy microfilament three-dimensional braided shear-resistant layer, and a braided layer. The titanium alloy microfilament three-dimensional braided shear-resistant layer is injected with self-healing polyurethane colloid. The axial cavity is filled with lightweight elastomer microspheres. The double-layer reverse spiral reinforcing belt is embedded with nickel-plated aramid composite fibers. The outer surface of the braided layer is coated with an anti-corrosion layer, and the outer surface of the anti-corrosion layer is coated with a wear-resistant layer.

[0007] Furthermore, an improvement of this invention is that the outer surface of the wear-resistant layer is coated with a fluorescent layer.

[0008] Furthermore, an improvement of this utility model is that the anti-corrosion layer is a zinc-aluminum based composite coating.

[0009] Furthermore, an improvement of this utility model is that the anti-corrosion layer is coated using an electrostatic spraying process.

[0010] Furthermore, the present invention is improved in that the zinc-aluminum based composite coating comprises, from the inside out, a zinc-rich layer, a zinc-aluminum composite layer, and an aluminum-based sealing layer.

[0011] Furthermore, the present invention is improved in that the surface of the three-dimensional braided anti-shear layer of the titanium alloy microwire is coated with a nano-ceramic anti-corrosion film.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a lightweight, high-strength polyester fiber rope, which has the following advantages:

[0014] This lightweight, high-strength polyester fiber rope reduces overall weight by filling an axial cavity with lightweight elastomer microspheres. It achieves a balance between high strength and fatigue resistance through a double-layered reverse spiral reinforcement belt and a blend of aramid and polyester fibers. A three-dimensional braided shear layer of titanium alloy microfilaments, combined with a self-healing polyurethane colloid, dynamically repairs microcracks and extends service life. The elastic buffering of the hollow microspheres further disperses stress concentration. A corrosion-resistant coating and a nano-ceramic anti-corrosion film work together to block corrosive media and adapt to harsh environments such as salt spray and acid / alkali corrosion. A fluorescent layer actively emits light in low-light conditions, enhancing rope visibility and reducing operational risks. A wear-resistant layer reduces surface wear and prevents sudden breakage. Modular design allows for adjustments to the functional layer ratios, adapting to diverse needs in aerospace, marine engineering, emergency rescue, and other scenarios. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0017] Figure 3 This is an enlarged front half-sectional view of the structure of this utility model;

[0018] Figure 4 This is a left half-sectional view of the structure of this utility model.

[0019] In the figure: 1. Axial cavity; 2. Double-layer reverse spiral reinforcing belt; 3. Aramid and polyester mixed fiber web; 4. Titanium alloy microfilament three-dimensional braided shear layer; 5. Braided layer; 6. Anti-corrosion layer; 7. Wear-resistant layer; 8. Fluorescent layer; 9. Lightweight elastomer microspheres; 10. Nickel-plated aramid composite fiber. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 This utility model is a lightweight, high-strength polyester fiber rope, which, from the inside out, includes an axial cavity 1, a double-layer reverse spiral reinforcing belt 2, an aramid and polyester mixed fiber web 3, a titanium alloy microfilament three-dimensional braided shear-resistant layer 4, and a braided layer 5. The titanium alloy microfilament three-dimensional braided shear-resistant layer 4 is injected with self-healing polyurethane colloid. The axial cavity 1 is filled with lightweight elastomer microspheres 9. The double-layer reverse spiral reinforcing belt 2 is embedded with nickel-plated aramid composite fibers 10. The outer surface of the braided layer 5 is coated with an anti-corrosion layer 6, and the outer surface of the anti-corrosion layer 6 is coated with a wear-resistant layer 7.

[0022] To further improve safety performance, in this solution, the outer surface of the wear-resistant layer 7 is coated with a fluorescent layer 8. The fluorescent layer 8 emits light actively in low-light environments, significantly improving the visibility of the rope and solving the safety hazards of traditional ropes that are easily overlooked at night or in complex environments.

[0023] To further improve corrosion resistance, in this solution, the anti-corrosion layer 6 is a zinc-aluminum composite coating. The zinc-aluminum composite coating includes, from the inside out, a zinc-rich layer, a zinc-aluminum composite layer, and an aluminum-based sealing layer. The zinc-rich layer provides sacrificial anode protection, the zinc-aluminum composite layer enhances weather resistance, and the aluminum-based sealing layer forms a physical barrier, thus solving the problem of insufficient protection from a single coating.

[0024] To further optimize the adhesion and uniformity of the anti-corrosion layer 6, in this solution, the anti-corrosion layer 6 is coated using an electrostatic spraying process. The electrostatic spraying process achieves uniform coating distribution through the adsorption principle, solving the problem of localized thinness caused by uneven coating in traditional spraying processes.

[0025] To further enhance the corrosion resistance of the three-dimensional braided shear layer 4 of titanium alloy microwires, in this solution, the surface of the three-dimensional braided shear layer 4 of titanium alloy microwires is coated with a nano-ceramic anti-corrosion film. The nano-ceramic film blocks chemical media through its dense structure, solving the problem of easy oxidation of titanium alloy microwires in humid or chemical environments.

[0026] This invention relates to a lightweight, high-strength polyester fiber rope. During operation, the axial cavity 1 serves as the core support structure inside the rope. The axial cavity 1 is filled with lightweight elastomer microspheres 9 to achieve overall weight reduction. The elastic properties of the microspheres can disperse external stress and improve the rope's fatigue resistance. Significantly reducing rope density while maintaining mechanical performance stability, it is suitable for weight-sensitive applications. The double-layer reverse spiral reinforcement band 2 balances the stress on the inner and outer layers through a double-layer reverse spiral winding structure, enhancing tensile strength and torsional performance. The embedded nickel-plated aramid composite fiber 10 improves wear resistance and corrosion resistance. Through structural optimization and material upgrades, the rope's service life is extended, adapting to complex working conditions. The aramid and polyester mixed fiber mesh 3 serves as an intermediate transition layer. The mixed fiber mesh combines the high modulus of aramid with the ductility of polyester fibers, dispersing concentrated stress, preventing localized failure, achieving a balance between energy absorption and flexibility, and improving the overall reliability of the rope. The titanium alloy microfilament three-dimensional braided shear-resistant layer 4 maximizes the high strength characteristics of titanium alloy microfilaments through a three-dimensional braided structure. After injecting self-healing polyurethane colloid, it can dynamically repair micro-cracks, restore structural integrity, and significantly improve shear resistance and service life. Adapted to high-dynamic load scenarios, the high-density braided structure of braided layer 5 provides basic mechanical support and a stable base for subsequent coating adhesion, maintaining rope flexibility and impact resistance, enhancing interlayer bonding, and extending overall structural stability. Anti-corrosion layer 6 is a zinc-aluminum based composite coating that blocks corrosive media and protects the internal structure. Wear-resistant layer 7, a high-hardness material covering anti-corrosion layer 6, reduces frictional loss between the rope and the contact surface, lowering the risk of surface damage. Optimized material formulation reduces the coefficient of friction and extends service life. Fluorescent layer 8, coated on wear-resistant layer 7, enhances the rope's visibility in low-light environments, strengthening safety warning functions. It continues to glow after illumination, significantly improving visibility and making it suitable for high-risk scenarios. A dense nano-ceramic anti-corrosion film covering the surface of titanium alloy microfilaments blocks corrosive media, retains the high strength characteristics of the microfilaments, significantly improves the durability of the shear layer, and extends the overall structural lifespan.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight, high-strength polyester fiber rope, characterized in that, From the inside out, it includes an axial cavity (1), a double-layer reverse spiral reinforcing belt (2), an aramid and polyester mixed fiber web (3), a titanium alloy microfilament three-dimensional braided shear-resistant layer (4), and a braided layer (5). The titanium alloy microfilament three-dimensional braided shear-resistant layer (4) is injected with self-healing polyurethane colloid. The axial cavity (1) is filled with lightweight elastomer microspheres (9). The double-layer reverse spiral reinforcing belt (2) is embedded with nickel-plated aramid composite fibers (10). The outer surface of the braided layer (5) is coated with an anti-corrosion layer (6). The outer surface of the anti-corrosion layer (6) is coated with a wear-resistant layer (7).

2. The lightweight high-strength polyester fiber rope according to claim 1, characterized in that, The outer surface of the wear-resistant layer (7) is coated with a fluorescent layer (8).

3. The lightweight high-strength polyester fiber rope according to claim 1, characterized in that, The anti-corrosion layer (6) is a zinc-aluminum based composite coating.

4. The lightweight high-strength polyester fiber rope according to claim 1, characterized in that, The anti-corrosion layer (6) is applied using an electrostatic spraying process.

5. The lightweight high-strength polyester fiber rope according to claim 3, characterized in that, The zinc-aluminum composite coating consists of, from the inside out, a zinc-rich layer, a zinc-aluminum composite layer, and an aluminum-based sealing layer.

6. The lightweight high-strength polyester fiber rope according to claim 1, characterized in that, The surface of the titanium alloy microwire three-dimensional braided shear layer (4) is covered with a nano-ceramic anti-corrosion film.

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