High-strength steel wire rope for mining machine

Abstract

The utility model provides a high-strength steel wire rope for a mining machine. The high-strength steel wire rope comprises a tensile steel core, a hemp core, an inner-layer strand, an outer-layer strand, an injection molding layer, a galvanized reinforced steel wire, an anti-extrusion layer and a wear-resistant layer. Firstly, the hemp core is arranged at the spiral groove formed in the outer surface of the tensile steel core, so that the hemp core can be tightly combined on the tensile steel core, the inner layer strand can be more tightly wrapped and twisted on the outer sides of the tensile steel core and the hemp core due to the arrangement of the hemp core, and the strength of the steel wire rope is improved; meanwhile, the flexibility and the anti-fatigue performance of the steel wire rope are improved through the toughness of the hemp core; and secondly, the compact wrapping and twisting of the inner-layer strands and the outer-layer strands and the filling of the injection molding layers between the inner-layer strands and the outer-layer strands ensure the compact structure in the steel wire rope and reduce the gaps between the strands, so that the overall stability and bearing capacity are improved, and the rotation resistance of the steel wire rope is correspondingly improved. Therefore, the high-strength steel wire rope for the mining machine is comprehensively improved in the aspects of stability, extrusion resistance, wear resistance, safety and the like.

Description

Technical Field

[0001] The utility model relates to the technical field related to steel wire ropes, and in particular to a high-strength steel wire rope for mining machines. Background Art

[0002] Mining wire ropes play an irreplaceable role in the arduous and complex world of mining. They not only connect various mining equipment to the ore, but are also core components that carry out critical tasks such as lifting, traction, and suspension. With the continuous advancement of modern mining technology, mining depths and difficulty levels continue to rise, and the performance requirements for wire ropes are becoming increasingly stringent.

[0003] While traditional wire rope structures meet basic operational requirements to a certain extent, their limitations are becoming increasingly apparent when faced with the complex working conditions of high strength, high wear, and high extrusion in mining operations. During deep mining operations, wire ropes must withstand immense tensile forces. Traditional steel core and strand structures can break due to insufficient material strength or inappropriate structural design, seriously threatening the safety and continuity of mining operations. Therefore, to meet the urgent need for high-strength, highly wear-resistant, and highly extrusion-resistant wire ropes in modern mining operations, we offer a high-strength wire rope for mining machinery. Utility Model Content

[0004] The purpose of the utility model is to provide a high-strength steel wire rope for mining machines, which solves the problems existing in traditional steel wire ropes for mining machines and has higher strength.

[0005] A high-strength steel wire rope for mining machinery, comprising a tensile steel core, multiple hemp cores, multiple inner strands, multiple outer strands, an injection molding layer, multiple galvanized reinforcing steel wires, an anti-extrusion layer and a wear-resistant layer, wherein a plurality of spiral grooves are provided on the outer surface of the tensile steel core, the hemp core is filled in the spiral grooves, the inner strands are compacted and twisted on the outside of the hemp core, the outer strands are compacted and twisted on the outside of the inner strands, the injection molding layer is filled between the inner strands and the outer strands, the galvanized reinforcing steel wires are annularly twisted on the outside of the outer strands, the anti-extrusion layer and the wear-resistant layer are sequentially provided on the outside of the galvanized reinforcing steel wires from the inside to the outside, the anti-extrusion layer comprises an anti-extrusion outer layer, an anti-extrusion inner layer and a plurality of interwoven elastic struts arranged between the anti-extrusion outer layer and the anti-extrusion inner layer, and the elastic struts are filled with elastic particles.

[0006] Preferably, the inner layer strands and the outer layer strands each comprise an inner layer fine steel wire, multiple inner layer medium steel wires, multiple inner layer thick steel wires and multiple outer layer fan ring steel wires. The outer side of the inner layer fine steel wires is spirally twisted with the inner layer medium steel wires, the outer side of the inner layer medium steel wires is staggeredly twisted with the inner layer medium steel wires and the inner layer thick steel wires, and the outer layer fan ring steel wires are wrapped and compacted and arranged on the outside.

[0007] Preferably, the inner strands and the outer strands are compacted strands with a compaction rate of 15-18%, which provides the inner strands and the outer strands with higher strength and stability, improves the load-bearing capacity of the wire rope, reduces maintenance costs, and enhances the reliability and safety of the project.

[0008] Preferably, the gaps between the outer strands are filled with galvanized reinforcing steel wires.

[0009] Preferably, the elastic strut is a carbon fiber strut.

[0010] Preferably, the hemp core is impregnated with grease.

[0011] Preferably, the wear-resistant layer is an aluminum oxide wear-resistant layer with a thickness of 1 to 3 mm, so that the steel wire rope has excellent wear resistance.

[0012] Preferably, the outer sides of the inner strands and the outer strands are coated with a zinc layer. The zinc layer can provide excellent anti-oxidation and wear resistance for the steel wire rope, thereby increasing the life of the strands and reducing damage caused by friction between the strands, thereby increasing the service life of the steel wire rope.

[0013] Preferably, the inner strands and the outer strands have opposite twist directions, which reduces the contact stress of the wire rope and provides the wire rope with excellent anti-rotation performance, thereby reducing the loosening of the wire rope.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model provides a high-strength steel wire rope for mining machinery, which comprises a tensile steel core, multiple hemp cores, multiple inner strands, multiple outer strands, an injection molding layer, multiple galvanized reinforcing steel wires, an anti-extrusion layer and a wear-resistant layer. First, the hemp core is arranged at the spiral groove provided on the outer surface of the tensile steel core, so that the hemp core can be tightly combined with the tensile steel core. The setting of the hemp core allows the inner strands to be more tightly wrapped around the tensile steel core and the outside of the hemp core, thereby improving the strength of the wire rope. At the same time, the hemp core also increases the flexibility and fatigue resistance of the wire rope through its toughness; secondly, the compacted twisting of the inner and outer strands and the filling of the injection molded layer between them ensure the tight structure inside the wire rope, reduce the gaps between the strands, thereby improving the overall stability and bearing capacity, and correspondingly improving the rotation resistance of the wire rope; thirdly, the annular twisting of the galvanized reinforcing steel wire provides an additional protective layer for the wire rope, enhancing its anti-extrusion and tensile properties; at the same time, the elastic struts and filled elastic particles contained in the anti-extrusion layer can effectively disperse the pressure when subjected to external extrusion, protect the internal strand structure from damage, and correspondingly improve the silent performance of the wire rope; and the setting of the wear-resistant layer reduces the replacement frequency of the wire rope due to wear. Therefore, the high-strength steel wire rope used in this mining machine has achieved comprehensive improvements in stability, anti-extrusion ability, wear resistance and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the cross-sectional structure of the high-strength steel wire rope for mining machinery according to the present invention;

[0017] Figure 2 This is a schematic structural diagram of the tensile steel core and the hemp core described in the present invention.

[0018] in:

[0019] 10-tensile steel core, 20-hemp core, 30-inner strands, 40-outer strands, 50-injection molding layer, 60-galvanized reinforcing steel wire, 70-anti-extrusion layer, 80-wear-resistant layer, 11-spiral groove, 71-anti-extrusion outer layer, 72-anti-extrusion inner layer, 73-elastic support. DETAILED DESCRIPTION

[0020] The embodiments described below are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] See Figure 1 as well as Figure 2This embodiment provides a high-strength steel wire rope for mining machinery, which includes a tensile steel core 10, multiple hemp cores 20, multiple inner layer strands 30, multiple outer layer strands 40, an injection molding layer 50, multiple galvanized reinforcing steel wires 60, an anti-extrusion layer 70, and a wear-resistant layer 80. The outer surface of the tensile steel core 10 is provided with a plurality of spiral grooves 11, and the hemp core 20 is filled in the spiral grooves 11. The inner layer strands 30 are compacted and twisted on the outside of the hemp core 20, and the outer layer strands 40 are compacted and twisted on the outside of the inner layer strands 30. The injection molding layer 50 is filled between the inner layer strand 30 and the outer layer strand 40, the galvanized reinforcing steel wire 60 is annularly twisted on the outside of the outer layer strand 40, and the anti-extrusion layer 70 and the wear-resistant layer 80 are sequentially arranged on the outside of the galvanized reinforcing steel wire 60 from the inside to the outside. The anti-extrusion layer 70 includes an anti-extrusion outer layer 71, an anti-extrusion inner layer 72 and a plurality of interwoven elastic struts 73 arranged between the anti-extrusion outer layer 71 and the anti-extrusion inner layer 72, and the elastic struts 73 are filled with elastic particles.

[0022] Preferably, the inner layer strands 30 and the outer layer strands 40 each include an inner layer fine steel wire, multiple inner layer medium steel wires, multiple inner layer thick steel wires, and multiple outer layer fan ring steel wires. The outer side of the inner layer fine steel wires is spirally twisted with the inner layer medium steel wires, the outer side of the inner layer medium steel wires is staggeredly twisted with the inner layer medium steel wires and the inner layer thick steel wires, and the outer layer fan ring steel wires are wrapped and compacted and arranged on the outside. The above structure not only significantly enhances the strength and stability of the inner layer strands 30 and the outer layer strands 40, improves their load-bearing capacity, and optimizes fatigue resistance, but also, the provision of the outer layer fan ring steel wires also allows the inner layer strands 30 and the outer layer strands 40 to be twisted more tightly, thereby making the wire rope more durable, safe, and reliable during use.

[0023] Preferably, the diameter of the inner strand 30 is slightly smaller than the diameter of the outer strand 40. This ensures the compactness and stability of the internal structure of the wire rope and effectively improves the overall load-bearing capacity and wear resistance of the wire rope.

[0024] Preferably, the gaps between the outer strands 40 are filled with galvanized reinforcing wires 60. The presence of the galvanized reinforcing wires 60 allows the wire rope to more evenly distribute pressure when subjected to external compression, reducing localized stress concentration. This helps prevent deformation or damage to the wire rope due to compression, thereby enhancing its compressive resistance. Furthermore, the presence of the galvanized reinforcing wires 60 improves the wire rope's rotational resistance. By adding additional support structures between the outer strands 40, deformation and relaxation of the wire rope during torsion can be reduced, thereby maintaining its stable geometry and performance.

[0025] Preferably, the inner strands 30 and the outer strands 40 are compacted strands with a compaction rate of 15-18%, which provides the inner strands 30 and the outer strands 40 with higher strength and stability, improves the load-bearing capacity of the wire rope, reduces maintenance costs, and enhances the reliability and safety of the project.

[0026] Preferably, the elastic struts 73 are carbon fiber struts. Carbon fiber struts can withstand significant pressure, effectively dissipating the impact of external compression on the internal structure of the wire rope, thereby protecting the internal strand structure from damage. This in turn improves the wire rope's compression resistance. Alternatively, the elastic struts 73 may be rubber.

[0027] Preferably, the hemp core 20 is impregnated with grease. The grease provides lubrication for the hemp core 20 within the steel wire rope. When the steel wire rope is stretched or twisted, the grease in the hemp core 20 reduces friction between the steel wires, lowering wear and tear, thereby extending the service life of the steel wire rope.

[0028] Preferably, the wear-resistant layer 80 is an aluminum oxide wear-resistant layer 80 with a thickness of 1 to 3 mm, so that the steel wire rope has excellent wear resistance. It is also possible that the wear-resistant layer 80 is a ceramic coating.

[0029] Preferably, the outer sides of the inner strands 30 and the outer strands 40 are both coated with a zinc layer. The zinc layer can provide excellent anti-oxidation and wear resistance for the steel wire rope, thereby increasing the life of the strands and reducing damage caused by friction between the strands, thereby increasing the service life of the steel wire rope.

[0030] Preferably, the inner strands 30 and the outer strands 40 have opposite twist directions. The opposite twist directions reduce the contact stress of the wire rope, while giving the wire rope excellent anti-rotation performance and reducing the loosening of the wire rope.

[0031] Preferably, the hemp core 20 is a sisal rope core, which has strong tensile strength and flexibility.

[0032] The present invention provides a high-strength steel wire rope for mining machinery, which comprises a tensile steel core 10, a plurality of hemp cores 20, a plurality of inner strands 30, a plurality of outer strands 40, an injection molding layer 50, a plurality of galvanized reinforcing steel wires 60, an anti-extrusion layer 70 and a wear-resistant layer 80. First, the hemp core 20 is arranged at a spiral groove 11 provided on the outer surface of the tensile steel core 10, so that the hemp core 20 can be tightly combined with the tensile steel core 10. The arrangement of the hemp core 20 allows the inner strands 30 to be more tightly wrapped around the tensile steel core 10 and the outer side of the hemp core 20, thereby improving the strength of the steel wire rope. At the same time, the hemp core 20 also increases the flexibility and fatigue resistance of the steel wire rope through its toughness. Secondly, the compacted wrapping of the inner strands 30 and the outer strands 40 and the filling of the injection molding layer 50 between them ensure the tight structure inside the steel wire rope. The gaps between strands are reduced, thereby improving the overall stability and load-bearing capacity, and correspondingly enhancing the anti-rotation performance of the wire rope. Furthermore, the annular twist of the galvanized reinforcing steel wire 60 provides an additional protective layer for the wire rope, enhancing its anti-extrusion and anti-tension properties. At the same time, the elastic struts 73 and elastic particles filled in the anti-extrusion layer 70 can effectively disperse pressure when subjected to external extrusion, protecting the internal strand structure from damage, and correspondingly improving the quiet performance of the wire rope. The provision of the wear-resistant layer 80 reduces the frequency of replacement of the wire rope due to wear. Therefore, this high-strength wire rope for mining machines achieves comprehensive improvements in stability, anti-extrusion capacity, wear resistance, and safety, and is a high-strength wire rope.

[0033] The above disclosures are merely some preferred embodiments of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A high-strength steel wire rope for mining machinery, characterized by: It comprises a tensile steel core, multiple hemp cores, multiple inner strands, multiple outer strands, an injection molding layer, multiple galvanized reinforcing steel wires, an anti-extrusion layer and a wear-resistant layer. A plurality of spiral grooves are provided on the outer surface of the tensile steel core, and the spiral grooves are filled with the hemp core. The inner strands are compacted and twisted on the outside of the hemp core, and the outer strands are compacted and twisted on the outside of the inner strands. The injection molding layer is filled between the inner strands and the outer strands. The galvanized reinforcing steel wires are annularly twisted on the outside of the outer strands. The anti-extrusion layer and the wear-resistant layer are sequentially provided on the outside of the galvanized reinforcing steel wires from the inside to the outside. The anti-extrusion layer comprises an anti-extrusion outer layer, an anti-extrusion inner layer and a plurality of interwoven elastic struts arranged between the anti-extrusion outer layer and the anti-extrusion inner layer, and the elastic struts are filled with elastic particles.

2. The high-strength steel wire rope for mining machinery according to claim 1, characterized in that: The inner layer strands and the outer layer strands each comprise an inner layer fine steel wire, multiple inner layer medium steel wires, multiple inner layer thick steel wires and multiple outer layer fan ring steel wires. The outer side of the inner layer fine steel wires is spirally twisted with the inner layer medium steel wires, the outer side of the inner layer medium steel wires is staggeredly twisted with the inner layer medium steel wires and the inner layer thick steel wires, and the outer layer fan ring steel wires are wrapped and compacted and arranged on the outside.

3. The high-strength steel wire rope for mining machinery according to claim 1, characterized in that: The inner layer strands and the outer layer strands are both compacted strands, and the compaction rate is 15-18%.

4. The high-strength steel wire rope for mining machinery according to claim 1, characterized in that: The gaps between the outer strands are filled with galvanized reinforcing steel wires.

5. The high-strength steel wire rope for mining machinery according to claim 1, characterized in that: The elastic strut is a carbon fiber strut.

6. The high-strength steel wire rope for mining machinery according to claim 1, characterized in that: The hemp core is impregnated with grease.

7. The high-strength steel wire rope for mining machinery according to claim 1, characterized in that: The wear-resistant layer is an aluminum oxide wear-resistant layer.

8. The high-strength steel wire rope for mining machinery according to claim 1, characterized in that: The outer sides of the inner layer strands and the outer layer strands are both coated with zinc layers.

9. The high-strength steel wire rope for mining machinery according to claim 1, characterized in that: The inner layer strands and the outer layer strands are twisted in opposite directions.

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