Self-lubricating compacted strand steel wire rope

Abstract

The utility model discloses a self-lubricating type compacted strand steel wire rope, and particularly relates to the technical field of steel wire ropes, the self-lubricating type compacted strand steel wire rope comprises an oil carrying layer, an inner supporting layer, an outer coating layer and an inner winding layer, the inner supporting layer and the inner winding layer are connected to form a cylindrical structure, the inner supporting layer is filled with the oil carrying layer, the outer coating layer is formed by spirally surrounding four compacted strands, and each layer adopts a compacted strand structure. Wherein the inner supporting layer is formed by annularly arranging six compacted strands, the inner winding layer is formed by wrapping and connecting a single compacted strand to fill gaps, and the interior of each compacted strand is formed by tightly wrapping and twisting a center steel wire, nine internally-pressed steel wires and nine outer-layer steel wires. Through oil storage of the oil carrying layer and the multi-layer compacted strand structure, the self-lubricating function is achieved, frictional wear of steel wires is reduced, meanwhile, strength, abrasion resistance and durability are improved, and the self-lubricating steel wire rope is suitable for high-load industrial scenes needing long-term lubrication.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel wire rope technical field more specifically, the utility model relates to self -lubricating type compaction strand steel wire rope. BACKGROUND

[0002] In the field of hoisting machinery, mining equipment, etc., as the core bearing component, the lubricating performance and service life of steel wire rope are very important. The traditional steel wire rope usually adopts the way of external smearing of lubricating grease to reduce friction, but there are problems of easy loss of lubricating grease and frequent maintenance, especially under complex working conditions (such as high load, humid environment), the lubricating effect is difficult to last, and the steel wire is easy to fail due to wear and corrosion.

[0003] In the prior art, part of the self-lubricating steel wire rope adopts natural fiber rope core (such as sisal, jute) to store oil, but the natural fiber has the defects of limited oil absorption rate and easy mold due to damp, which leads to insufficient lubrication persistence and poor durability of the steel wire rope. In addition, the traditional steel wire rope structure is mostly simple strand rope winding, the internal gap is large, the oil carrying layer is unevenly distributed, and the lubrication dead angle is easy to appear, and the overall strength and fatigue resistance are difficult to meet the demand of high load scene.

[0004] Therefore, the self-lubricating type compaction strand steel wire rope is proposed. UTILITY MODEL CONTENT

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a self-lubricating type compaction strand steel wire rope to solve the problems raised in the above background art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a self-lubricating type compaction strand steel wire rope, comprising an oil carrying layer, an inner support layer, an outer cover layer and an inner winding layer, the inner support layer and the inner winding layer are connected to form a cylindrical structure, the cylindrical structure is filled with the oil carrying layer, and the cylindrical structure is provided with the outer cover layer outside.

[0007] Preferably, the oil carrying layer is a rope core made of synthetic fiber, and the synthetic fiber can be polypropylene fiber.

[0008] Preferably, the inner support layer, the outer cover layer and the inner winding layer are all composed of multiple compaction strands with the same structure.

[0009] Preferably, the inner support layer is composed of six compaction strands arranged in a ring shape, and the inner winding layer is a single compaction strand, and the single compaction strand of the inner winding layer is connected with the six compaction strands in the inner support layer to form a cylindrical structure.

[0010] Preferably, the outer cover layer is formed by spirally winding four compaction strands outside the inner support layer.

[0011] Preferably, the compact strand comprises a center steel wire, nine inner pressure steel wires uniformly distributed outside the center steel wire, and nine outer layer steel wires uniformly arranged outside the nine inner pressure steel wires.

[0012] Technical effects and advantages of the present utility model:

[0013] 1. The oil-carrying layer adopts a polypropylene fiber rope core, stores lubricating oil through a "V"-shaped oil storage groove structure, can slowly release to the steel wire contact surface, reduces internal steel wire friction and wear, does not need frequent manual lubrication, and reduces maintenance cost.

[0014] 2. The inner support layer, the inner winding layer and the outer cover layer are all composed of compact strands, the multi-layer close arrangement structure improves the tensile and torsional resistance of the steel wire rope, is suitable for high load scenes, the inner support layer adopts six compact strands arranged in a ring shape, the inner winding layer fills the gap by winding a single compact strand, forms a stable cylindrical structure, ensures uniform distribution of the oil-carrying layer, and avoids eccentricity or leakage.

[0015] 3. The internal steel wire of the compact strand is tightly twisted and smooth on the surface, reduces friction loss with the pulley and the winding drum, the outer cover layer is spirally wrapped by four compact strands, enhances the wear resistance and impact resistance, at the same time, the flexible spiral structure is suitable for bending working conditions, reduces stress concentration, the synthetic fiber rope core is less prone to damp and mildew than natural fiber, and has a longer service life. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a whole structure schematic view of the present utility model.

[0017] Fig. 2 It is a cross-sectional structure schematic view of the present utility model.

[0018] Fig. 3 It is a structure schematic view of the compact strand of the present utility model.

[0019] The figure mark is: 1, the oil-carrying layer;2, the inner support layer;3, the outer cover layer;4, the inner winding layer;201, the center steel wire;202, the inner pressure steel wire;203, the outer layer steel wire. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the present utility model will be clearly and completely described below in combination with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0021] As shown in the accompanying drawings of the embodiments of the present utility model, Figs. 1-3The self-lubricating compact strand steel wire rope shown comprises an oil carrying layer 1, an inner supporting layer 2, an outer covering layer 3 and an inner winding layer 4, the inner supporting layer 2 is connected with the inner winding layer 4 to form a cylindrical structure, the cylindrical structure is filled with the oil carrying layer 1, and the outer covering layer 3 is arranged outside the cylindrical structure.

[0022] In specific implementation, through the multi-layer structure design, the oil carrying layer 1 stores lubricating oil, the inner supporting layer 2 and the inner winding layer 4 form a cylindrical structure to fix the oil carrying layer 1, and the outer covering layer 3 wraps and protects the overall structure, so as to realize the self-lubricating function of the steel wire rope, the cylindrical structure is stable, the oil carrying layer 1 can store lubricating oil and slowly release it, the internal self-lubrication of the steel wire rope is realized, friction and wear are reduced, and the overall strength and sealing performance of the steel wire rope are improved through the multi-layer structure.

[0023] The oil carrying layer 1 is a rope core made of synthetic fibers, and the synthetic fibers can be polypropylene fibers.

[0024] In specific implementation, the synthetic fibers are used as the oil carrying layer 1 to absorb and store lubricating oil, and the lubricating oil is released through the contact between the fibers and the steel wires, the oil carrying layer 1 can be a rope core made of polypropylene fibers, and the lubricating oil can be stored in the "V"-shaped oil storage groove formed through the hot extrusion process, the polypropylene fibers are light in weight and low in cost, the oil storage groove design enhances the oil absorption and storage capacity, the lubricating oil can be uniformly released to the contact surface of the steel wires, the disadvantages of natural fibers, such as easy damp and mildew, are avoided, and the durability is improved.

[0025] The inner supporting layer 2, the outer covering layer 3 and the inner winding layer 4 are all composed of multiple compact strands with the same structure.

[0026] In specific implementation, the inner supporting layer 2, the outer covering layer 3 and the inner winding layer 4 all adopt the compact strand structure, the overall strength and stability are improved through the close arrangement of multiple steel wires, meanwhile, the compact strand structure can reduce the internal gap and prevent the oil carrying layer 1 from moving, each layer is composed of multiple compact strands with the same structure, the steel wires in the compact strand are closely attached to each other, so that the surface of the steel wire rope is smooth and wear-resistant, the friction with pulleys and other components is reduced, the multi-layer compact strand combination enhances the tensile and torsional resistance of the steel wire rope, and the service life is prolonged.

[0027] The inner supporting layer 2 is composed of six compact strands arranged in a ring shape, the inner winding layer 4 is a single compact strand, and the single compact strand of the inner winding layer 4 is wound with the six compact strands in the inner supporting layer 2 to form a cylindrical structure.

[0028] In specific implementation, the inner support layer 2 adopts six compacted strands arranged in a ring shape to form a support framework, and the inner winding layer 4 is a single compacted strand which is wound and connected to fill the gaps, thereby forming a stable cylindrical structure to ensure the uniform distribution of the oil carrying layer 1.

[0029] The outer cover layer 3 is formed by spirally winding four compacted strands outside the inner support layer 2.

[0030] In specific implementation, the outer cover layer 3 is formed by spirally winding four compacted strands outside the inner support layer 2 to form a tightly wrapped structure, which protects the internal oil carrying layer 1 and the support structure, and at the same time improves the flexibility of the steel wire rope through spiral arrangement. The four compacted strands are spirally wound outside the inner support layer 2 to form a multi-layer composite structure together with the inner support layer 2 and the inner winding layer 4. The spirally wound outer cover layer 3 enhances the wear resistance and impact resistance of the steel wire rope, prevents the intrusion of external impurities, and the flexible spiral structure makes the steel wire rope suitable for curved working conditions and reduces stress concentration.

[0031] The compacted strand includes a center steel wire 201, inner pressure steel wires 202 and outer layer steel wires 203. The center steel wire 201 is wrapped outside by nine inner pressure steel wires 202 which are uniformly distributed, and the nine inner pressure steel wires 202 are in surface contact with nine outer layer steel wires 203 which are uniformly arranged.

[0032] In specific implementation, the compacted strand adopts a three-layer structure of the center steel wire 201, the inner pressure steel wire 202 and the outer layer steel wire 203. Through the twisting arrangement of different layers of steel wires, a tightly compacted strand core is formed to improve the single strand strength and surface smoothness. The multi-layer steel wire structure has high strength and good fatigue resistance, which is suitable for high load scenes. The smooth outer layer steel wire 203 reduces friction with the pulley and the drum, thereby reducing energy loss.

[0033] The above only describes preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A self-lubricating compacted strand steel wire rope, characterized in that, It comprises an oil carrying layer (1), an inner supporting layer (2), an outer covering layer (3) and an inner winding layer (4), the inner supporting layer (2) and the inner winding layer (4) are connected to form a cylindrical structure, the cylindrical structure is filled with the oil carrying layer (1), and the outer part of the cylindrical structure is provided with the outer covering layer (3).

2. The self-lubricating compact strand steel wire rope according to claim 1, characterized in that, The oil carrying layer (1) is a rope core made of synthetic fibers, and the synthetic fibers can be polypropylene fibers.

3. The self-lubricating compact strand steel wire rope according to claim 2, characterized in that, The inner supporting layer (2), the outer covering layer (3) and the inner winding layer (4) are all composed of multiple compacted strands with the same structure.

4. The self-lubricating compact strand steel wire rope according to claim 3, characterized in that, The inner supporting layer (2) is composed of six compacted strands arranged in a ring shape, and the inner winding layer (4) is a single compacted strand, which is wound with the six compacted strands in the inner supporting layer (2) to form a cylindrical structure.

5. The self-lubricating compact strand steel wire rope according to claim 4, characterized in that, The outer covering layer (3) is formed by spirally winding four compacted strands outside the inner supporting layer (2).

6. The self-lubricating compact strand steel wire rope according to claim 5, characterized in that, The compacted strand comprises a center steel wire (201), an inner pressure steel wire (202) and an outer layer steel wire (203), the outer side of the center steel wire (201) is twisted with nine inner pressure steel wires (202) uniformly distributed, and the outer side of the nine inner pressure steel wires (202) is in contact with nine outer layer steel wires (203) uniformly arranged.

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