A high strength, stretch resistant, puffed glass fiber cord

Abstract

The utility model discloses a kind of tensile high-strength bulking glass fiber ropes, it is related to glass fiber rope technical field, including central core, multiple second strands, each second strand is arranged in circumferential array with central core as center, two third strands are arranged radially between any two adjacent second strands, the radius of each third strand is less than the radius of any one second strand.The third strand of the tensile high-strength bulking glass fiber rope small radius perfectly fills all interstices between multiple large radius second strands, improves extrusion resistance, and reduces internal fretting wear, greatly prolongs fatigue life, and when stressed, huge tensile load is mainly borne by second strand, and third strand filled therein plays key stress transfer and buffering effect, avoid stress concentration between second strand, when subjected to dynamic impact load, third strand absorbs energy, buffer impact on second strand, prevent instantaneous breakage of glass fiber rope.

Description

Technical Field

[0001] This utility model relates to the field of fiberglass rope technology, specifically to a high-strength expanded fiberglass rope with tensile strength. Background Technology

[0002] Fiberglass rope is a type of rope woven from glass fibers. It possesses high strength and abrasion resistance, and is widely used in hoisting, traction, load-bearing, and tensile applications. Fiberglass ropes come in three forms: monofilament, multifilament, and braided, with different strengths and thicknesses selected according to application requirements. Furthermore, fiberglass ropes offer advantages such as corrosion resistance, oxidation resistance, and UV resistance, making them widely applicable in chemical, aerospace, and other fields.

[0003] For example, Chinese patent CN221626665U, entitled "A High Tensile Strength Fiberglass Rope," includes a protective tube and a fiberglass rope body. To prevent the fiberglass rope body from directly contacting the outside, the protective tube is sleeved on the outside of the fiberglass rope body, and then both ends of the protective tube are sealed or heat-sealed to provide sealed protection for the fiberglass rope body. The protective tube is flexibly designed and made of materials including rubber, effectively protecting the fiberglass rope body, reducing the strength reduction caused by aging, and maintaining high tensile strength. The protective tube of this utility model includes a first inner tube, a first longitudinal partition, and an outer tube. The fiberglass rope body is located in the first inner tube for initial protection. Multiple first longitudinal partitions are provided, and the multiple first longitudinal partitions are circumferentially and evenly fixed to the outside of the first inner tube. The side of the multiple first longitudinal partitions away from the first inner tube is respectively fixedly connected to the outer tube. A cavity is formed between the first inner tube and the second outer tube, and the cavity is formed with an air chamber for buffer protection, which can increase the flexibility of this utility model.

[0004] While the high tensile strength fiberglass rope mentioned in the above patent is practical and convenient, it also has shortcomings. Fiberglass itself is a brittle material with poor resistance to compression. When the rope is compressed, the inside of the rope is easily deformed, and repeated friction between the internal rope sections leads to performance degradation and reduces the lifespan of the rope. Utility Model Content

[0005] The purpose of this invention is to provide a high-strength expanded glass fiber rope with tensile strength to overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: the tensile-resistant high-strength expanded glass fiber rope includes a central core and a plurality of second strands. Each second strand is arranged in a circular array around the central core. Two third strands are radially arranged between any two adjacent second strands, and the radius of each third strand is smaller than the radius of any one of the second strands.

[0007] Furthermore, each of the second strands is twisted in a first twist direction, and each of the third strands is twisted in a second twist direction opposite to the first twist direction.

[0008] Furthermore, the central core includes an inner tube and a plurality of first rope strands, each of the first rope strands being twisted together inside the inner tube, and each of the second rope strands and each of the third rope strands being disposed on the circumferential side of the inner tube.

[0009] Furthermore, a filling layer is provided between each of the first rope strands, and the filling layer is made of polyester fiber.

[0010] Furthermore, each of the second strands is provided with a flame-retardant layer on its periphery, and the flame-retardant layer is provided with a high-temperature resistant layer, an insulating layer and a sheath from the inside to the outside on its periphery.

[0011] Furthermore, a plurality of support strips are arranged in a circumferential array between the sheath and the insulating layer.

[0012] Compared with the prior art, the beneficial effects provided by this utility model are as follows: The small-radius third strand of the high-strength expanded fiberglass rope perfectly fills all the gaps between multiple large-radius second strands, forming an exceptionally dense and solid cylinder, which improves the resistance to compression, reduces internal fretting wear, and significantly extends fatigue life. When subjected to force, the huge tensile load is mainly borne by the second strands, while the third strand filling them plays a key role in stress transmission and buffering. They distribute the force more evenly across the entire cross section, avoiding stress concentration between the second strands. When subjected to dynamic impact loads, the third strand absorbs energy, buffers the impact on the second strands, and prevents the fiberglass rope from breaking instantly. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Fig. 1 A schematic diagram of the overall structure provided for an embodiment of this utility model; Fig. 2 A side sectional view of the present utility model embodiment; Fig. 3 This is a partial structural diagram provided for an embodiment of the present utility model.

[0015] Explanation of reference numerals in the attached diagram: 1. Sheath; 2. Support bar; 3. Insulation layer; 4. High temperature resistant layer; 5. Flame retardant layer; 6. Second strand; 7. Third strand; 8. Inner tube; 9. Filling layer; 10. First strand. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] Please see Figs. 1-3 The present invention provides a technical solution as follows: the high-strength expanded fiberglass rope with tensile strength includes a central core and multiple second strands 6. Each second strand 6 is arranged in a circular array around the central core. Two third strands 7 are radially arranged between any two adjacent second strands 6. The radius of each third strand 7 is smaller than the radius of any one of the second strands 6. Specifically, a flame-retardant layer 5 is provided on the circumferential side of each second strand 6. From the inside to the outside, the circumferential side of the flame-retardant layer 5 is provided with a high-temperature resistant layer 4, an insulating layer 3, and a sheath 1. Multiple support strips 2 are arranged in a circular array between the sheath 1 and the insulating layer 3. The third strand 7 of the radius perfectly fills all the gaps between the multiple large-radius second strands 6, forming an exceptionally tight and solid cylinder. This improves the resistance to compression, reduces internal fretting wear, and significantly extends fatigue life. Under stress, the huge tensile load is mainly borne by the second strands 6, while the third strand 7, which fills the space, plays a crucial role in stress transfer and buffering. They distribute the force more evenly across the entire cross section, preventing stress concentration between the second strands 6. When subjected to dynamic impact loads, the third strand 7 absorbs energy, buffers the impact on the second strands 6, and prevents the fiberglass rope from breaking instantly.

[0018] In this embodiment, each of the second strands 6 is twisted in the first twist direction, and each of the third strands 7 is twisted in the second twist direction opposite to the first twist direction. Specifically, the number and arrangement of the third strands 7 are sufficient to generate a torque that is equivalent in magnitude but opposite in direction to the torque of the second strands 6, thereby achieving perfect torque balance. The resulting rope body hardly rotates at all when bearing a load, which improves the torsional balance of the fiberglass rope. This is a crucial safety feature for applications with extremely high stability requirements, such as hoisting, lifting, and transmission.

[0019] In this embodiment, the central core includes an inner tube 8 and a plurality of first rope strands 10. Each first rope strand 10 is twisted and disposed inside the inner tube 8. Each second rope strand 6 and each third rope strand 7 are disposed on the circumferential side of the inner tube 8. Specifically, each first rope strand 10, second rope strand 6 and third rope strand 7 is woven from aramid fiber or polyaramid fiber and has high strength and flame retardant properties.

[0020] In this embodiment, a filling layer 9 is provided between each first strand 10. The material of the filling layer 9 is polyester fiber. Specifically, polyester fiber provides good filling volume, softness and certain vibration absorption, making the originally stiff fiberglass rope easier to bend, wrap or fill gaps.

[0021] Working principle: The small-radius third strand 7 of this high-strength tensile expanded fiberglass rope perfectly fills all the gaps between multiple large-radius second strands 6, forming an exceptionally dense and solid cylinder. This improves its resistance to compression, reduces internal fretting wear, and significantly extends its fatigue life. Under stress, the huge tensile load is mainly borne by the second strands 6, while the third strand 7 plays a crucial role in stress transfer and buffering. They distribute the force more evenly across the entire cross-section, preventing stress concentration between the second strands 6. When subjected to dynamic impact loads, the third strand 7 absorbs energy, buffers the impact on the second strands 6, and prevents the fiberglass rope from breaking instantly.

[0022] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-strength expanded glass fiber rope with tensile strength, comprising a central core, characterized in that, Also includes: Multiple second rope strands (6), each second rope strand (6) is arranged in a circular array with the central core as the center; Two third strands (7) are radially arranged between any two adjacent second strands (6); The radius of each of the third strands (7) is smaller than the radius of any of the second strands (6).

2. The tensile-resistant high-strength expanded glass fiber rope according to claim 1, characterized in that, Each of the second strands (6) is twisted in a first twist direction, and each of the third strands (7) is twisted in a second twist direction opposite to the first twist direction.

3. The tensile-resistant high-strength expanded glass fiber rope according to claim 1, characterized in that, The central core includes an inner tube (8) and a plurality of first rope strands (10), each of the first rope strands (10) being twisted together inside the inner tube (8), and each of the second rope strands (6) and each of the third rope strands (7) being disposed on the circumferential side of the inner tube (8).

4. The tensile-resistant high-strength expanded glass fiber rope according to claim 3, characterized in that, A filling layer (9) is provided between each of the first rope strands (10), and the material of the filling layer (9) is polyester fiber.

5. The tensile-resistant high-strength expanded glass fiber rope according to claim 1, characterized in that, Each of the second strands (6) has a flame-retardant layer (5) on its periphery. The flame-retardant layer (5) has a high-temperature resistant layer (4), an insulating layer (3), and a sheath (1) on its periphery from the inside to the outside.

6. The tensile-resistant high-strength expanded glass fiber rope according to claim 5, characterized in that, Multiple support bars (2) are arranged in a circumferential array between the sheath (1) and the insulating layer (3).

Images