High load wire rope

Abstract

The present application discloses a high-load-bearing steel wire rope, and relates to the technical field of steel wire ropes; the present application comprises a composite central strand, which is in a straight line; a plurality of inner strand steel ropes, which are spirally wound on the outer surface of the composite central strand; a plurality of outer strand steel ropes, which are spirally wound on the outer surface of the inner strand steel rope, and the outer strand steel rope has an opposite winding direction to the inner strand steel rope; the composite central strand of the present application serves as a wire core, and the inner strand steel rope and the outer strand steel rope form a double-layer spiral structure, and the spiral rotation directions of the double-layer spiral structure are opposite, so that when the steel wire rope as a whole is subjected to force and load, stress will be transmitted to the spiral structure, thereby forming spiral stress, and its two spiral structures with opposite spirals mutually offset the spiral stress, so that the spiral structure is not easy to loosen, thereby enhancing the breaking tension of the steel wire rope as a whole, improving its strength, and thus improving practicality.

Description

Technical Field

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

[0002] 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. It is used for lifting, traction, tensioning and carrying in material handling machinery.

[0003] The existing steel wire rope is composed of steel wire, a rope core and grease. The steel wire rope is first twisted into strands by multiple steel wires, and then a certain number of strands are twisted into a spiral rope with the rope core as the center. The steel wire strands surrounding the rope core are generally single-layer structure and in a spiral direction. During the stress process, the spiral single-layer steel wire strands make its breaking tension small, resulting in a decrease in its strength, so that the overall bearing capacity, comprehensive performance and service life of the steel wire rope need to be improved. Therefore, the present application proposes a high-load-bearing steel wire rope. Utility Model Content

[0004] The purpose of the present application is to solve the above-mentioned background problems and provide a high-load bearing steel wire rope.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0006] High load wire rope, including:

[0007] The composite central strand is straight;

[0008] A plurality of inner strands of steel ropes are spirally wound around the outer surface of the composite center strand;

[0009] A plurality of outer strands of steel ropes are spirally wound on the outer surface of the inner strand of steel rope, and the winding directions of the outer strands of steel ropes and the inner strand of steel ropes are opposite.

[0010] Furthermore, the composite central strand comprises an inner rubber tube sleeve, a plurality of central steel wires are arranged inside the inner rubber tube sleeve, and the inner strand steel rope is spirally wound on the inner rubber tube sleeve.

[0011] Furthermore, a plurality of the inner steel ropes are sleeved with outer rubber tube sleeves, and the outer steel ropes are spirally wound on the outer rubber tube sleeves.

[0012] Furthermore, the inner rubber tube sleeve and the outer rubber tube sleeve are both made of nitrile rubber.

[0013] Furthermore, the inner strand steel rope is formed by twisting a plurality of inner strand steel wires together to form strands.

[0014] Furthermore, the outer strand steel rope is formed by twisting a plurality of outer strand steel wires together to form strands.

[0015] Furthermore, each of the inner strand steel rope and the outer strand steel rope is wrapped with a carbon fiber core wire.

[0016] Furthermore, the outer surface of the outer steel wire is plated with a metal zinc layer.

[0017] The beneficial effects of the present application are as follows: In the present application, the composite central strand serves as the wire core, and the inner strand steel rope and the outer strand steel rope form a double-layer spiral structure, and the spiral rotation directions of the double-layer spiral structure are opposite, so that when the steel 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 the spiral stress, making the spiral structure not easy to loosen, thereby enhancing the overall breaking tension of the steel wire rope, improving its strength, and thus improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of this application;

[0019] Figure 2 It is a three-dimensional structural diagram of the composite center stock of this application;

[0020] Figure 3 This is a three-dimensional structural diagram of the steel rope in this application;

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

[0022] Figure numerals: 1, composite center strand; 2, inner strand steel rope; 3, outer strand steel rope; 4, outer rubber tube sleeve; 5, carbon fiber core wire; 101, inner rubber tube sleeve; 102, center steel wire; 201, inner strand steel wire; 301, outer strand steel wire. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figure 1-Figure 4As shown, a high-load-bearing steel wire rope proposed in an embodiment of the present application includes: a composite central strand 1, which is in a straight line; the composite central strand 1 is used as a wire core, and a plurality of inner strand steel ropes 2 are spirally wound on the outer surface of the composite central strand 1; a plurality of inner strand steel ropes 2 are spirally wound on the outer surface of the composite central strand 1 to form an inner strand layer structure, a plurality of outer strand steel ropes 3 are spirally wound on the outer surface of the inner strand steel rope 2, and the outer strand steel ropes 3 are wound in opposite directions to the inner strand steel rope 2, and a plurality of outer strand steel ropes 3 are spirally wound on the outer surface of the inner strand layer structure to form an outer strand layer structure, and the overall structure of the steel wire rope, the composite central strand 1 is used as a wire core, the inner strand steel ropes 2 and the outer strand steel ropes 3 form a double-layer spiral structure, and the spiral rotation directions of the double-layer spiral structure are opposite, so that when the steel wire rope is subjected to force and load, the stress will be transmitted to the spiral structure, thereby forming spiral stress, and its two spiral structures with opposite spirals offset each other to cancel out the spiral stress, so that the spiral structure is not easy to loosen, thereby enhancing the breaking tension of the steel wire rope as a whole, improving its strength, and thus improving its practicality.

[0025] like Figure 2 As shown, in some embodiments, the composite center strand 1 includes an inner rubber tube sleeve 101, and a plurality of center steel wires 102 are arranged in the inner rubber tube sleeve 101. The inner strand steel rope 2 is spirally wound on the inner rubber tube sleeve 101. The inner rubber tube sleeve 101 is provided, and a plurality of center steel wires 102 are arranged in the inner rubber tube sleeve 101 to form a wire core. The inner rubber tube sleeve 101 is not only used to constrain the center steel wire 102, so that it is not easy to loosen, but also facilitates the spiral winding of the inner strand steel rope 2. At the same time, its rubber material increases the friction between the center steel wire 102 and the inner strand steel rope 2, improves the connection strength between the two, and is also used to avoid direct contact between the center steel wire 102 and the inner strand steel rope 2 to cause metal fatigue, thereby reducing the wear of the two when subjected to force. Preferably, the longitudinal section of the center steel wire 102 is constructed as a regular hexagon, so that the metal density coefficient between the center steel wires 102 is high, and its strength is higher, thereby improving practicality.

[0026] like Figure 1 As shown, in some embodiments, several inner steel ropes 2 are provided with outer rubber tube sleeves 4, and the outer steel ropes 3 are spirally wound on the outer rubber tube sleeves 4. The outer rubber tube sleeves 4 are provided on the inner steel ropes 2 to constrain the inner steel ropes 2, making it more convenient to wind the outer steel ropes 3. At the same time, the friction between the inner steel ropes 2 and the outer steel ropes 3 is increased, the connection strength between the two is improved, and the direct contact between the inner steel ropes 2 and the outer steel ropes 3 to cause metal fatigue is avoided, and the wear of the two when subjected to force is reduced, thereby improving practicality.

[0027] like Figure 1 and Figure 2As shown, in some embodiments, the inner rubber tube sleeve 101 and the outer rubber tube sleeve 4 are both made of nitrile rubber. Nitrile rubber is made from butadiene and acrylonitrile by emulsion polymerization. Nitrile rubber is mainly produced by low-temperature emulsion polymerization. It has excellent oil resistance, high wear resistance, good heat resistance, and strong adhesion. It further ensures the connectivity between the center steel wire 102 and the inner steel rope 2, as well as the connectivity between the inner steel rope 2 and the outer steel rope 3, thereby improving the overall strength of the steel wire rope.

[0028] like Figure 3 As shown, in some embodiments, the inner strand steel rope 2 is formed by twisting a plurality of inner strand steel wires 201 together to form strands. The plurality of inner strand steel wires 201 not only improves the strength of a single strand of the inner strand steel rope 2, but also improves its toughness, thereby improving the overall strength of the steel wire rope.

[0029] like Figure 4 As shown, in some embodiments, the outer strand steel rope 3 is formed by twisting a plurality of outer strand steel wires 301 together to form strands. The plurality of outer strand steel wires 301 not only improves the strength of a single strand of the outer strand steel rope 3, but also improves the strength of the steel wire rope as a whole.

[0030] like Figure 3 and Figure 4 As shown, in some embodiments, the inner steel rope 2 and the outer steel rope 3 are each wrapped with a carbon fiber core wire 5. Compared with the ordinary steel core, the carbon fiber core wire 5 can carry 7 to 9 times the tension, while its weight is only one-fourth of the same steel wire. This not only increases the carrying capacity of the inner steel rope 2 or the outer steel rope 3, but also improves the overall strength of the steel wire rope.

[0031] like Figure 1 As shown, in some embodiments, the outer surface of the outer steel wire 301 is coated with a metal zinc layer. Preferably, the galvanized layer is not shown in the figure. The outer steel wire 301 is in the form of a strand of outer steel rope 3 located on the outer surface of the entire steel wire rope. When the entire steel wire rope is used in an outdoor environment, it will be exposed to rainwater, etc. By being coated with a metal zinc layer, the corrosion resistance of the outer surface of the steel wire rope is improved, thereby ensuring the overall strength of the steel wire rope.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those 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 will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. High load-bearing wire rope, characterized in that: include: The composite central strand (1) is straight; A plurality of inner strand steel ropes (2) are spirally wound around the outer surface of the composite central strand (1); A plurality of outer steel ropes (3) are spirally wound on the outer surface of the inner steel rope (2), and the outer steel ropes (3) and the inner steel ropes (2) are wound in opposite directions.

2. The high load-bearing steel wire rope according to claim 1, characterized in that: The composite central strand (1) comprises an inner rubber tube sleeve (101), a plurality of central steel wires (102) are arranged inside the inner rubber tube sleeve (101), and the inner strand steel rope (2) is spirally wound around the inner rubber tube sleeve (101).

3. The high load-bearing steel wire rope according to claim 2, characterized in that: An outer rubber tube sleeve (4) is sleeved on a plurality of the inner steel ropes (2), and the outer steel ropes (3) are spirally wound on the outer rubber tube sleeve (4).

4. The high load-bearing steel wire rope according to claim 3, characterized in that: The inner rubber tube sleeve (101) and the outer rubber tube sleeve (4) are both made of nitrile rubber.

5. The high load-bearing steel wire rope according to claim 1, characterized in that: The inner strand steel rope (2) is composed of a plurality of inner strand steel wires (201) twisted together to form strands.

6. The high load-bearing steel wire rope according to claim 1, characterized in that: The outer strand steel rope (3) is composed of a plurality of outer strand steel wires (301) twisted together to form strands.

7. The high load-bearing steel wire rope according to claim 1, characterized in that: The inner steel rope (2) and the outer steel rope (3) are both wrapped with a carbon fiber core wire (5).

8. The high load-bearing steel wire rope according to claim 6, characterized in that: The outer surface of the outer steel wire (301) is plated with a metal zinc layer.

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