High-bearing-capacity steel wire rope

Abstract

The utility model discloses a high-bearing-capacity steel wire rope and relates to the technical field of steel wire ropes. The steel wire rope comprises a composite center strand, the composite center strand comprises a carbon fiber core, the outer surface of the carbon fiber core is sleeved with a polypropylene fiber sleeve, the outer surface of the polypropylene fiber sleeve is provided with a plurality of annularly-distributed caulking grooves, and center steel wires are embedded in the caulking grooves. The outer surfaces of the multiple center steel wires are sleeved with first rubber sleeves. The inner strand ropes are spirally wound on the outer surface of the composite central strand; the strength of the carbon fiber core is improved, and the polypropylene fiber sleeve is filled separately, so that the whole composite central strand is tightly filled, the tensile strength is higher, the relative displacement among the central steel wires is reduced, the structural stability is facilitated, the inner strand rope and the outer strand rope are formed by twisting a plurality of steel wires, and the inner strand rope and the outer strand rope are spirally wound in an inner layer and an outer layer and then coated with the protective sleeve; the overall strength of the steel wire rope is improved, and the bearing capacity, the comprehensive performance and the service life of the steel wire rope are improved.

Description

Technical Field

[0001] The present application relates to the technical field of steel wire ropes, and in particular to a high-load bearing steel wire rope. Background Art

[0002] A steel wire rope is a spiral bundle of steel wires twisted together according to certain rules with steel wires that meet the requirements of mechanical properties and geometric dimensions. The steel wire rope is first twisted into strands by multiple layers of steel wires, and then a certain number of strands are twisted into a spiral rope with the rope core as the center. In material handling machinery, it is used for lifting, pulling, tensioning and carrying. The existing steel wire ropes need to be improved in terms of bearing capacity, comprehensive performance and service life. Therefore, this application proposes a high-load-bearing steel wire rope. Summary of the Invention

[0003] The purpose of this application is to solve the problems in the above-mentioned background technology and provide a high-load-bearing steel wire rope.

[0004] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0005] A high-load-bearing steel wire rope, comprising:

[0006] A composite central strand, the composite central strand comprising a carbon fiber core, the outer surface of the carbon fiber core being sheathed with a polypropylene fiber sheath, the outer surface of the polypropylene fiber sheath being provided with a plurality of annularly distributed embedding grooves, a plurality of the embedding grooves being embedded with a central steel wire, and the outer surfaces of a plurality of the central steel wires being sheathed with a first rubber sheath;

[0007] A plurality of inner strands are spirally wound around the outer surface of the composite center strand, wherein the inner strands are formed by twisting a plurality of inner strand steel wires into strands;

[0008] A plurality of outer strands are spirally wound around the outer surfaces of the plurality of inner strands, wherein the outer strands are formed by twisting a plurality of outer strand steel wires into strands;

[0009] The protective cover is arranged on the outer surfaces of the plurality of outer strands.

[0010] Furthermore, the inner strand rope also includes a first nylon rope core, and a plurality of inner strand steel wires are twisted on the outer surface of the first nylon rope core.

[0011] Furthermore, the outer strand rope also includes a second nylon rope core, and a plurality of outer strand steel wires are twisted on the outer surface of the second nylon rope core.

[0012] Furthermore, the inner strand is spirally wound around the outer surface of the composite center strand in a clockwise manner, and the outer strand is spirally wound around the outer surface of the inner strand in a counterclockwise manner.

[0013] Furthermore, the outer surfaces of the inner strand and the outer strand are both covered with a second rubber sleeve.

[0014] Furthermore, the protective sleeve includes an inner protective layer and an outer protective layer coaxially arranged, an annular cavity is left between the inner protective layer and the outer protective layer, and a buffer layer is arranged in the annular cavity.

[0015] Furthermore, the buffer layer includes several first arc-shaped ridges, which are all arranged on the outer wall of the inner protective layer and distributed in a ring shape. The inner wall of the outer protective layer is provided with several second arc-shaped ridges, and the several first arc-shaped ridges and the several second arc-shaped ridges are staggered.

[0016] Furthermore, through holes are formed on both the first arc-shaped convex strip and the second arc-shaped convex strip.

[0017] The beneficial effects of the present application are as follows: In the present application, the carbon fiber core improves the strength, and the polypropylene fiber sleeve separates and fills, so that the composite center strand is tightly filled as a whole, the tensile strength is higher, and the relative displacement between each center steel wire is reduced, which is beneficial to structural stability. The inner and outer strands are both made of multiple steel wires twisted into strands, and the two are spirally wound with two layers inside and outside, and finally covered with a protective sleeve, which not only improves the overall strength of the wire rope, but also improves its bearing capacity, comprehensive performance and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural diagram of the steel wire rope of this application;

[0019] Figure 2 It is a schematic diagram of the steel wire rope structure of this application;

[0020] Figure 3 This is a three-dimensional structural diagram of the composite center unit of this application;

[0021] Figure 4 This is a three-dimensional structural diagram of the strand rope in this application;

[0022] Figure 5 This is a three-dimensional structural diagram of the outer strand rope of this application;

[0023] Figure numerals: 1, composite center strand; 2, inner strand rope; 3, outer strand rope; 4, protective sleeve; 5, second rubber sleeve; 101, carbon fiber core; 102, polypropylene fiber sleeve; 103, embedded groove; 104, center steel wire; 105, first rubber sleeve; 201, inner strand steel wire; 202, first nylon rope core; 301, outer strand steel wire; 302, second nylon rope core; 401, inner protective layer; 402, outer protective layer; 403, buffer layer; 4031, first arc-shaped ridge; 4032, second arc-shaped ridge. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0025] like Figure 1-Figure 5 As shown, a high-load-bearing steel wire rope proposed in one embodiment of the present application includes:

[0026] Composite center strand 1, composite center strand 1 includes carbon fiber core 101, carbon fiber core 101 is woven from carbon fiber filaments, carbon fiber is a fibrous material composed of carbon atoms, with extremely high strength and light weight, carbon fiber core 101 made of carbon fiber can carry 7 to 9 times more tension than ordinary steel core, and weighs only one-fourth of the same steel wire, while reducing weight and improving strength, the outer surface of carbon fiber core 101 is sheathed with polypropylene fiber sheath 102, polypropylene fiber sheath 102 is made of polypropylene as raw material through a special process, and has the characteristics of high strength and good toughness, the outer surface of polypropylene fiber sheath 102 is provided with a plurality of Annularly distributed embedding grooves 103, several embedding grooves 103 are embedded with central steel wires 104, the outer surfaces of several central steel wires 104 are covered with first rubber sleeves 105, a polypropylene fiber sleeve 102 is sleeved on the carbon fiber core 101, and embedding grooves 103 are opened to embed the central steel wires 104 in the embedding grooves 103, and finally the first rubber sleeve 105 is used to cover and bundle them. The carbon fiber core 101 is used to improve the overall strength of the composite central strand 1. The polypropylene fiber sleeve 102 not only makes the composite central strand 1 tightly packed and has higher tensile strength, but also reduces the relative displacement between the central steel wires 104, which is conducive to structural stability, thereby improving the overall strength and load-bearing capacity of the wire rope;

[0027] A plurality of inner strands 2 are spirally wound around the outer surface of the composite center strand 1. The inner strands 2 are formed by twisting a plurality of inner strand steel wires 201 into strands. The twisting of the plurality of inner strand steel wires 201 into strands not only increases the strength of the individual strands of the inner strand 2, but also increases its toughness, thereby increasing the overall strength of the wire rope.

[0028] A plurality of outer strands 3 are spirally wound around the outer surfaces of the plurality of inner strands 2. The outer strands 3 are formed by twisting a plurality of outer steel wires 301 into strands. The twisting of the plurality of outer steel wires 301 into strands not only increases the strength of a single strand of the outer strand 3, but also increases its toughness, thereby increasing the overall strength of the wire rope.

[0029] The protective cover 4 is provided on the outer surface of the plurality of outer strands 3. The protective cover 4 is provided not only for bundling and fixing the steel wire ropes as a whole and improving their stability, but also for preventing the steel wire ropes from direct contact with external substances and friction, thereby playing a role in protecting the steel wire ropes and thus increasing their service life;

[0030] In this solution, the carbon fiber core 101, the polypropylene fiber sleeve 102, the central steel wire 104 and the first rubber sleeve 105 constitute a composite central strand 1, so that the composite central strand 1 is tightly filled as a whole, has higher tensile strength, and reduces the relative displacement between each central steel wire 104, which is beneficial to structural stability. The inner strand 2 and the outer strand 3 are spirally wound in two layers inside and outside, and finally covered with a protective sleeve 4, which not only improves the overall strength of the wire rope, but also improves its bearing capacity, comprehensive performance and service life.

[0031] like Figure 4 As shown, in some embodiments, the inner rope 2 also includes a first nylon rope core 202, which is woven from nylon fibers. It not only has high strength but also good toughness. Several inner steel wires 201 are twisted on the outer surface of the first nylon rope core 202. Since the inner rope 2 is made of multiple inner steel wires 201 twisted into strands, when the steel wire rope is subjected to bearing stress, the multiple inner steel wires 201 will shrink and squeeze each other under the action of stress. By arranging the first nylon rope core 202 inside it, not only the strength and bearing capacity of the single strand of the inner rope 2 are improved, but also the shrinkage caused by the bearing stress can be effectively slowed down, thereby avoiding excessive extrusion and friction between the inner steel wires 201 and causing breakage.

[0032] like Figure 5 As shown, in some embodiments, the outer strand rope 3 also includes a second nylon rope core 302, which is woven from nylon fibers. It not only has high strength but also good toughness. Several outer strand steel wires 301 are twisted on the outer surface of the second nylon rope core 302. Since the outer strand rope 3 is made of multiple outer strand steel wires 301 twisted into strands, when the steel wire rope is subjected to bearing stress, the multiple outer strand steel wires 301 will shrink and squeeze each other under the action of stress. By arranging the second nylon rope core 302 inside it, not only the strength and bearing capacity of the single strand of the outer strand rope 3 are improved, but also the shrinkage caused by the bearing stress can be effectively slowed down, thereby avoiding excessive extrusion and friction between the outer strand steel wires 301 and causing breakage.

[0033] like Figure 1 As shown, in some embodiments, the inner strand 2 is spirally wound clockwise on the outer surface of the composite center strand 1, and the outer strand 3 is spirally wound counterclockwise on the outer surface of the inner strand 2. Since the inner strand 2 and the outer strand 3 are both spirally wound, the spiral winding directions of the two are opposite, so that the inner strand 2 and the outer strand 3 form a double-layer spiral structure, and the spiral rotation directions of the double-layer spiral structure are opposite, so that when the wire rope as a whole is subjected to force and load, the stress will be transmitted to the spiral structure, thereby forming spiral stress. The two spiral structures with opposite spirals offset each other's spiral stress, making the spiral structure not easy to loosen, thereby enhancing the breaking tension of the wire rope as a whole, improving its strength and its load-bearing performance, and thus improving practicality.

[0034] like Figure 4 and Figure 5 As shown, in some embodiments, the outer surfaces of the inner strand 2 and the outer strand 3 are both covered with a second rubber sleeve 5. Since the inner strand 2 and the outer strand 3 have opposite spiral directions, by covering the inner strand 2 and the outer strand 3 with the second rubber sleeve 5, the deformable material of the second rubber sleeve 5 is utilized to make the inner and outer layers of the structure closer. At the same time, it can also avoid direct contact between the inner strand 2 and the outer strand 3, avoid metal fatigue caused by direct contact, reduce wear when the two are subjected to force, and thus improve practicality.

[0035] like Figure 2 As shown, in some embodiments, the protective sleeve 4 includes an inner protective layer 401 and an outer protective layer 402 coaxially arranged, an annular cavity is left between the inner protective layer 401 and the outer protective layer 402, and a buffer layer 403 is arranged in the annular cavity. Preferably, the inner protective layer 401 and the outer protective layer 402 are both made of rubber material, and the two can effectively protect the wire rope. By arranging the buffer layer 403 between the two, when the outer surface of the wire rope is under pressure, the pressure can be buffered and protected, thereby reducing the stress on the internal steel wire.

[0036] like Figure 2 As shown, in some embodiments, the buffer layer 403 includes a plurality of first arc-shaped ridges 4031, and the plurality of first arc-shaped ridges 4031 are all arranged on the outer wall of the inner protective layer 401 and are distributed in a ring shape. The inner wall of the outer protective layer 402 is provided with a plurality of second arc-shaped ridges 4032, and the plurality of first arc-shaped ridges 4031 and the plurality of second arc-shaped ridges 4032 are staggered. Preferably, the first arc-shaped ridges 4031 and the second arc-shaped ridges 4032 are both made of butadiene rubber, which has good elasticity, good wear resistance, and good bending resistance. The first arc-shaped ridges 4031 and the second arc-shaped ridges 4032 are constructed with arc-shaped protrusions and the protrusions are relative, so that when the external pressure is applied, the two undergo elastic deformation, thereby buffering the pressure and reducing the stress on the internal steel wire.

[0037] like Figure 2 As shown, in some embodiments, through holes are provided on the first arc-shaped ridge 4031 and the second arc-shaped ridge 4032. The through holes are used to increase the deformation space of the first arc-shaped ridge 4031 and the second arc-shaped ridge 4032, thereby further improving their buffering and protection performance.

[0038] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-load bearing steel wire rope, characterized in that: include: A composite central strand (1), the composite central strand (1) comprising a carbon fiber core (101), the outer surface of the carbon fiber core (101) being sheathed with a polypropylene fiber sheath (102), the outer surface of the polypropylene fiber sheath (102) being provided with a plurality of annularly distributed embedded grooves (103), a plurality of the embedded grooves (103) being embedded with central steel wires (104), and the outer surfaces of the plurality of the central steel wires (104) being sheathed with a first rubber sheath (105); A plurality of inner strands (2) are spirally wound around the outer surface of the composite center strand (1), wherein the inner strands (2) are formed by twisting a plurality of inner strand steel wires (201) into strands; A plurality of outer strands (3) are spirally wound around the outer surfaces of the plurality of inner strands (2), wherein the outer strands (3) are formed by twisting a plurality of outer strand steel wires (301) into strands; The protective sleeve (4) is sleeved on the outer surfaces of the plurality of outer strands (3).

2. The high load-bearing steel wire rope according to claim 1, characterized in that: The inner strand rope (2) further comprises a first nylon rope core (202), and a plurality of inner strand steel wires (201) are twisted on the outer surface of the first nylon rope core (202).

3. The high load-bearing steel wire rope according to claim 1, characterized in that: The outer strand rope (3) further comprises a second nylon rope core (302), and a plurality of outer strand steel wires (301) are twisted on the outer surface of the second nylon rope core (302).

4. The high load-bearing steel wire rope according to claim 1, characterized in that: The inner strand (2) is spirally wound around the outer surface of the composite center strand (1) in a clockwise manner, and the outer strand (3) is spirally wound around the outer surface of the inner strand (2) in a counterclockwise manner.

5. The high load-bearing steel wire rope according to claim 1, characterized in that: The outer surfaces of the inner strand (2) and the outer strand (3) are both covered with a second rubber sleeve (5).

6. The high load-bearing steel wire rope according to claim 1, characterized in that: The protective sleeve (4) comprises an inner protective layer (401) and an outer protective layer (402) coaxially arranged, an annular cavity is left between the inner protective layer (401) and the outer protective layer (402), and a buffer layer (403) is arranged in the annular cavity.

7. The high load-bearing steel wire rope according to claim 6, characterized in that: The buffer layer (403) comprises a plurality of first arc-shaped convex strips (4031), which are all arranged on the outer wall of the inner protective layer (401) and are distributed in an annular shape. The inner wall of the outer protective layer (402) is provided with a plurality of second arc-shaped convex strips (4032), and the plurality of first arc-shaped convex strips (4031) and the plurality of second arc-shaped convex strips (4032) are distributed in an alternating manner.

8. The high load-bearing steel wire rope according to claim 7, characterized in that: Through holes are provided on both the first arc-shaped convex strip (4031) and the second arc-shaped convex strip (4032).

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