Light-compaction anti-rotation steel wire rope for crane

Abstract

The utility model provides a lightly-compacted anti-rotation steel wire rope for a crane. Firstly, due to the arrangement of the inner-layer elastic filling protection layer, the inner-layer elastic filling protection layer can be extruded and deform in the process of wrapping and twisting the inner-layer strand on the outer side of the central strand, and therefore wrapping and twisting of the inner-layer strand and the central strand are tighter; secondly, the lubricating rope strands between the inner-layer strands and the outer-layer strands and the ultra-high molecular weight polyethylene filling strands between the outer-layer strands and the outer-layer elastic filling protection layer not only optimize friction between the strands and reduce abrasion, but also improve the overall rotation resistance of the steel wire rope; and thirdly, the annularly-wound galvanized reinforcing steel wires in the reinforcing steel wire layer enable the internal center strand, the internal layer strands and the external layer strands to be wrapped and twisted tightly, and the tensile strength and the wear resistance of the steel wire rope are further remarkably enhanced. Therefore, the light-compaction anti-rotation steel wire rope for the crane is compact in design structure, and has the advantages of excellent anti-rotation performance, high-strength tensile capacity, excellent wear resistance and the like.

Description

Technical Field

[0001] The utility model relates to the technical field related to steel wire ropes, in particular to a lightly compacted anti-rotation steel wire rope for cranes. Background Art

[0002] Wire rope, a helical structure made of steel wires with standardized mechanical properties and geometric dimensions, tightly twisted according to specific rules, primarily consists of three main components: steel wire, a core, and lubricating grease. Due to its high strength, lightweight, smooth operation, and resistance to sudden breakage, wire rope plays a vital role in material handling machinery, widely used in lifting, traction, tensioning, and load-bearing operations.

[0003] However, in practical applications, wire rope rotation has become a critical factor affecting the performance of crane wire ropes. To ensure operational efficiency and the safety of personnel and property, wire ropes must remain in a non-rotating state during use. Once a wire rope rotates, it not only directly reduces operational efficiency but can also pose a serious threat to life and property. Furthermore, this rotational motion can significantly reduce the fatigue resistance of the wire rope, significantly shortening its service life.

[0004] Therefore, improving the anti-rotation ability of wire ropes is of great significance for ensuring operational safety, improving work efficiency, and extending service life. To this end, we provide a lightly compacted anti-rotation wire rope for cranes. Utility Model Content

[0005] The utility model aims to provide a lightly compacted anti-rotation steel wire rope for a crane, thereby improving the anti-rotation capability of the steel wire rope.

[0006] A lightly compacted, anti-rotation steel wire rope for a crane, comprising a central strand, an inner elastic filling protective layer, multiple inner strands, multiple outer strands, multiple lubricated strands, multiple ultra-high molecular weight polyethylene (UHMWPE) filled strands, an outer elastic filling protective layer, a reinforcing steel wire layer, and a wear-resistant layer. The outer side of the central strand is coated with the inner elastic filling protective layer, the inner strand is spirally twisted around the outer side of the inner elastic filling protective layer, the outer strand is spirally twisted around the outer side of the inner strand, the lubricated strand is filled between the inner strand and the outer strand, the outer elastic filling protective layer is provided on the outer side of the outer strand, the UHMWPE filled strand is filled between the outer strand and the outer elastic filling protective layer, the reinforcing steel wire layer is provided on the outer side of the outer elastic filling protective layer, and the wear-resistant layer is provided on the outer side of the reinforcing steel wire layer, wherein the reinforcing steel wire layer comprises multiple galvanized reinforcing steel wires annularly wound and twisted around the outer side of the outer elastic filling protective layer.

[0007] Preferably, the center strand comprises a center thick steel wire and multiple center thin steel wires, and the multiple center thin steel wires are twisted into multiple center thin steel wire bundles. A plurality of spiral grooves are provided on the outer surface of the center thick steel wire, and the center thin steel wire bundles are uniformly spirally twisted at the spiral grooves of the center thick steel wire.

[0008] 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.

[0009] Preferably, the diameter of the inner strand is smaller than the diameter of the outer strand.

[0010] Preferably, the lubricating strands are fiber core lubricating strands fully soaked in grease.

[0011] Preferably, the inner elastic filling protective layer is a polyester fiber elastic filling protective layer or an elastic rubber filling protective layer.

[0012] Preferably, the outer elastic filling protective layer is an elastic rubber filling protective layer.

[0013] Preferably, the wear-resistant layer is an aluminum oxide wear-resistant layer with a thickness of 1 to 3 mm.

[0014] Preferably, the inner layer strands and the outer layer strands are both compacted strands.

[0015] Preferably, the twist directions of the inner layer strands and the outer layer strands are opposite.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The utility model provides a lightly compacted anti-rotation steel wire rope for cranes, which comprises a central strand, an inner elastic filling protective layer, multiple inner strands, multiple outer strands, multiple lubricating strands, multiple ultra-high molecular polyethylene filling strands, an outer elastic filling protective layer, a reinforcing steel wire layer and a wear-resistant layer. First, the setting of the inner elastic filling protective layer enables the inner elastic filling protective layer to be squeezed and deformed during the process of twisting the inner layer strands around the outside of the center strands, thereby making the inner layer strands and the center strands twisted more tightly, and at the same time, the gap between the inner layer strands and the center strands can also be filled to a certain extent, greatly enhancing the tightness of the twisting between the two; secondly, the lubricating rope strands between the inner layer strands and the outer layer strands and the ultra-high molecular polyethylene filling strands between the outer layer strands and the outer elastic filling protective layer not only optimize the friction between the strands and reduce wear, but also improve the overall anti-rotation ability of the wire rope; thirdly, the annularly wound galvanized reinforcing steel wire in the reinforcing steel wire layer makes the internal center strand, inner layer strand and outer layer strand twisted tightly, and also significantly enhances the tensile strength and wear resistance of the wire rope, extending its service life. At the same time, the matching outer elastic filling protective layer cooperates with the reinforcing steel wire layer to make the internal center strand, inner layer strand and outer layer strand more tightly combined; in addition, the outermost wear-resistant layer provides additional protection to ensure that the wire rope can maintain excellent performance even in harsh environments. Therefore, the lightly compacted anti-rotation steel wire rope used in this crane is designed with a compact structure, excellent anti-rotation performance, high-strength tensile strength and excellent wear resistance, etc., and has better performance and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a structural schematic diagram of the lightly compacted anti-rotation steel wire rope for cranes.

[0019] in:

[0020] 10-center strand, 20-inner elastic filling protective layer, 30-inner strand, 40-outer strand, 50-lubricated rope strand, 60-ultra-high molecular weight polyethylene filling strand, 70-outer elastic filling protective layer, 80-reinforced steel wire layer, 90-wear-resistant layer. DETAILED DESCRIPTION

[0021] 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.

[0022] See Figure 1The present embodiment provides a lightly compacted anti-rotation steel wire rope for cranes, which comprises a central strand 10, an inner elastic filling protective layer 20, multiple inner strands 30, multiple outer strands 40, multiple lubricating strands 50, multiple ultra-high molecular weight polyethylene filling strands 60, an outer elastic filling protective layer 70, a reinforcing steel wire layer 80, and a wear-resistant layer 90. The outer side of the central strand 10 is coated with the inner elastic filling protective layer 20, the outer side of the inner elastic filling protective layer 20 is spirally twisted with the inner strand 30, and the outer side of the inner strand 30 is spirally twisted with the outer strand 40. The lubricating rope strands 50 are filled between the inner strands 30 and the outer strands 40, the outer side of the outer strands 40 is provided with the outer elastic filling protective layer 70, the ultra-high molecular weight polyethylene filling strands 60 are filled between the outer strands 40 and the outer elastic filling protective layer 70, the outer side of the outer elastic filling protective layer 70 is provided with the reinforcing steel wire layer 80, and the outer side of the reinforcing steel wire layer 80 is provided with the wear-resistant layer 90, wherein the reinforcing steel wire layer 80 includes a plurality of galvanized reinforcing steel wires annularly wound and twisted on the outer side of the outer elastic filling protective layer 70.

[0023] Preferably, the core strand 10 comprises a central thick steel wire and multiple central thin steel wires, which are twisted together into a multi-strand core thin steel wire bundle. The outer surface of the central thick steel wire is provided with a plurality of spiral grooves, and the core thin steel wire bundles are uniformly twisted into the spiral grooves of the central thick steel wire. The provision of the spiral grooves effectively enhances the overall strength of the core strand 10 and improves its anti-rotation performance. This further enhances the central strength of the wire rope, allowing the wire rope to more evenly distribute the load when subjected to tension, thereby preventing breakage caused by local overload.

[0024] 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.

[0025] Preferably, the diameter of the inner strand 30 is 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.

[0026] Preferably, the lubricating strands 50 are fiber-core lubricating strands 50 that are fully impregnated with grease. This not only improves lubricity between the strands within the wire rope, significantly reducing friction and wear, but also enhances the overall anti-rotation performance of the wire rope. The grease impregnation allows the fiber-core lubricating strands 50 to effectively lubricate and cushion the rope, helping to reduce interstrand stress and improve the rope's flexibility and service life. Furthermore, the grease's lubricating effect effectively protects against moisture and corrosive substances in the external environment, providing additional protection for the rope and ensuring its stable performance and long-term use in harsh conditions.

[0027] Preferably, the inner elastic filling protective layer 20 is a polyester fiber elastic filling protective layer or an elastic rubber filling protective layer, which can effectively absorb and disperse external pressure and protect the internal strand structure from damage.

[0028] Preferably, the outer elastic filling protective layer 70 is an elastic rubber filling protective layer.

[0029] Preferably, the wear-resistant layer 90 is an aluminum oxide wear-resistant layer 90 with a thickness of 1 to 3 mm, so that the steel wire rope has excellent wear resistance.

[0030] Preferably, both the inner strands 30 and the outer strands 40 are compacted strands. This provides the inner strands 30 and the outer strands 40 with greater strength and stability, improving the load-bearing capacity of the wire rope and reducing maintenance costs. It should be noted that the inner strands 30 are lightly compacted and twisted around the outside of the core strand 10.

[0031] 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.

[0032] The present invention provides a lightly compacted anti-rotation steel wire rope for cranes, which comprises a central strand 10, an inner elastic filling protective layer 20, a plurality of inner strands 30, a plurality of outer strands 40, a plurality of lubricating strands 50, a plurality of ultra-high molecular weight polyethylene filling strands 60, an outer elastic filling protective layer 70, a reinforcing steel wire layer 80 and a wear-resistant layer 90. Firstly, the provision of the inner elastic filling protective layer 20 enables the inner elastic filling protective layer 20 to be squeezed and deformed during the process of the inner strands 30 being twisted around the outer side of the central strand 10, thereby making the twisting of the inner strands 30 and the central strand 10 tighter, and at the same time, the gap between the inner strands 30 and the central strand 10 can also be filled to a certain extent, thereby greatly enhancing the tightness between the two when twisted together; secondly, the lubricating strands 50 between the inner strands 30 and the outer strands 40 and the ultra-high molecular weight polyethylene filling strands 60 between the outer strands 40 and the outer elastic filling protective layer 70 not only optimize the friction between the strands, but also reduce the wear resistance of the strands. The galvanized steel wires in the reinforced steel wire layer 80 are tightly twisted, which significantly enhances the tensile strength and wear resistance of the wire rope and prolongs its service life. Furthermore, the outer elastic filling protective layer 70, in conjunction with the reinforced steel wire layer 80, further tightens the inner center strand 10, inner strand 30, and outer strand 40. Furthermore, the outermost wear-resistant layer 90 provides additional protection, ensuring the wire rope maintains excellent performance even in harsh environments. Therefore, this lightly compacted anti-rotation steel wire rope for cranes has a compact design, excellent anti-rotation performance, high tensile strength, and excellent wear resistance, resulting in improved performance and reliability.

[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 lightly compacted anti-rotation steel wire rope for cranes, characterized by: It includes a central strand, an inner elastic filling protective layer, multiple inner strands, multiple outer strands, multiple lubricated rope strands, multiple ultra-high molecular weight polyethylene filling strands, an outer elastic filling protective layer, a reinforcing steel wire layer and a wear-resistant layer. The outer side of the central strand is coated with the inner elastic filling protective layer, the outer side of the inner elastic filling protective layer is spirally twisted with the inner strand, the outer side of the inner strand is spirally twisted with the outer strand, the lubricated rope strand is filled between the inner strand and the outer strand, the outer side of the outer strand is provided with the outer elastic filling protective layer, the ultra-high molecular weight polyethylene filling strand is filled between the outer strand and the outer elastic filling protective layer, the reinforcing steel wire layer is provided on the outer side of the outer elastic filling protective layer, and the wear-resistant layer is provided on the outer side of the reinforcing steel wire layer, wherein the reinforcing steel wire layer includes multiple galvanized reinforcing steel wires annularly wound and twisted on the outer side of the outer elastic filling protective layer.

2. The lightly compacted anti-rotation steel wire rope for crane according to claim 1, characterized in that: The center strand includes a center thick steel wire and multiple center thin steel wires, and the multiple center thin steel wires are twisted into multiple center thin steel wire bundles. A plurality of spiral grooves are provided on the outer surface of the center thick steel wire, and the center thin steel wire bundles are evenly spirally twisted in the spiral grooves of the center thick steel wire.

3. The lightly compacted anti-rotation steel wire rope for crane 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.

4. The lightly compacted anti-rotation steel wire rope for crane according to claim 3, characterized in that: The inner strand has a diameter smaller than that of the outer strand.

5. The lightly compacted anti-rotation steel wire rope for crane according to claim 1, characterized in that: The lubricating strands are fiber core lubricating strands fully soaked in grease.

6. The lightly compacted anti-rotation steel wire rope for crane according to claim 1, characterized in that: The inner elastic filling protective layer is a polyester fiber elastic filling protective layer or an elastic rubber filling protective layer.

7. The lightly compacted anti-rotation steel wire rope for crane according to claim 1, characterized in that: The outer elastic filling protective layer is an elastic rubber filling protective layer.

8. The lightly compacted anti-rotation steel wire rope for crane according to claim 1, characterized in that: The wear-resistant layer is an aluminum oxide wear-resistant layer.

9. The lightly compacted anti-rotation steel wire rope for crane according to claim 1, characterized in that: The inner layer strands and the outer layer strands are both compacted strands.

10. The lightly compacted anti-rotation steel wire rope for crane 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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