Composite rope core with light weight and good stability

Abstract

The utility model discloses a composite rope core with light weight and good stability, which comprises a central wire and outer layer wires, and the outer layer wires spirally wrap and entwist the central wire. The central yarn comprises a sisal hemp filament and a plurality of aramid fiber filaments, and the aramid fiber filaments spirally wrap and twist the sisal hemp filament; the outer-layer filaments comprise a plurality of second sisal filaments and a plurality of steel wire filaments; a protective layer is arranged on the periphery of the outer-layer wire, an arc-shaped groove is formed in the periphery of the protective layer, the arc-shaped groove is spirally wound around the periphery of the protective layer, a plurality of oil outlet holes are formed in the arc-shaped groove, one end of each oil outlet hole is communicated with the outer-layer wire, and the other end of each oil outlet hole is communicated with the outside. The sisal hemp filaments and the aramid fiber filaments are combined to serve as the center filaments, and the steel filaments and the sisal hemp filaments are combined to serve as the outer layer filaments, so that the rope core is light in weight, and the supporting performance of the rope core is improved. The protection layer is additionally arranged, the stability of the internal structure of the rope core can be enhanced, and the supporting stability of the rope core is further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of steel wire rope core, concretely relates to a composite rope core with good light weight and stability. BACKGROUND

[0002] Steel wire rope is spiral steel wire bundle twisted together according to certain rules by steel wire, rope core and lubricating grease. Steel wire rope has high strength, light weight, stable operation, is not easy to break suddenly, and is reliable in operation, and has wide application in daily life. Due to the unique performance of steel wire rope, so far, steel wire rope is an indispensable material or component in the fields of metallurgy, mine, oil and gas drilling, machinery, chemical industry, aerospace, etc., therefore, the quality of steel wire rope is also concerned by multiple industries, wherein, the steel wire rope core is a key link to ensure the quality of steel wire rope.

[0003] The steel wire rope core includes a fiber core and a metal material core (i.e., a steel core). The fiber core steel wire rope is more flexible than the steel core steel wire rope with the same diameter and structure. The steel core steel wire rope has greater rigidity and poor flexibility than the fiber core steel wire rope, but can bear larger load. With the increasingly wide application range of steel wire rope, the application conditions are also increasingly harsh, and the requirements for the rope core are also increasingly high. Because the rope core plays a supporting role in the radial direction to maintain the physical structure of the steel wire rope, the supporting stability of the rope core is very important. The steel wire rope may be related to lifting and traction tasks, and may also be related to binding tasks, and the rope core needs to have good flexibility and be more portable and flexible. However, there is a certain contradiction. If the quality and flexibility are pursued blindly, the supporting property of the rope core will not be enough, and the subsequent supporting stability of the steel wire rope strands will not be good, and the rope core may escape or the strands may be loose during the use of the steel wire rope. If the supporting property of the rope core is pursued blindly, the strength of the rope core can be improved, but the flexibility will be reduced, and the application range of the steel wire rope will be reduced. Therefore, a composite rope core with good light weight and stability is proposed, which has good supporting stability and portability, and lays a foundation for improving the overall performance of the subsequent steel wire rope. SUMMARY

[0004] In view of the above problems, the utility model provides a composite rope core with good light weight and stability, and the steel wire rope core has high strength, is light, and has good supporting stability.

[0005] The utility model discloses a kind of composite rope cores with good light stability, including center wire and outer layer wire, the outer layer wire spiral wraps and twists the center wire.Said center wire includes a sisal filament and several aramid fiber filaments, and the aramid fiber filaments spiral wraps and twist the sisal filament.Said outer layer wire includes several second sisal filaments and several steel filament, and m steel filaments are arranged between the two adjacent second sisal filaments, and m is 1 or 2 or 3.Said steel filament includes 6 outer galvanized steel wires and 1 center galvanized steel wire, and the outer galvanized steel wire spiral wraps and twists the center galvanized steel wire.Said outer layer wire is peripherally provided with a protective layer, and the protective layer is peripherally provided with an arc-shaped groove, the arc-shaped groove is spirally arranged on the periphery of the protective layer, a plurality of oil outlets are arranged in the arc-shaped groove, one end of the oil outlet is communicated with the outer layer wire, and the other end of the oil outlet is communicated with the outside.

[0006] Preferably, the oil outlet includes an oval pit and a small round hole arranged at the center point of the oval pit, and the two ends of the small round hole are respectively communicated with the inside and outside of the protective layer.

[0007] Preferably, a steel filament is arranged outside the composite rope core, and the radial interval distance between adjacent oil outlets is n steel filament lay length, and n is an integer greater than or equal to 1.

[0008] Preferably, the width of the arc-shaped groove is consistent with the diameter of the steel filament.

[0009] Preferably, the protective layer is an elastic rubber protective layer.

[0010] Preferably, the protective layer is filled with lubricating grease.

[0011] Preferably, the center galvanized steel wire has a hexagonal structure.

[0012] Preferably, the outer galvanized steel wire and the center galvanized steel wire have consistent diameters.

[0013] Preferably, the diameter of the second sisal filament is 0.8-1.2 times the diameter of the steel filament.

[0014] Preferably, the center wire includes one sisal filament and six aramid fiber filaments, and the diameters of the sisal filament and the aramid fiber filament are consistent.

[0015] The utility model discloses a beneficial effect is: the utility model discloses a light good stability composite rope core adopts the combination of fine sword -palm filament and aramid fiber filament as the center silk, and the center silk is endowed with good flexibility, and the center silk is more portable, and the outer layer silk adopts the combination of steel filament and sword -palm filament, and the combination of steel filament and sword -palm filament can not make the center silk too rigid and improve the support of the center silk, and the protective layer is additionally arranged on the outer periphery of the outer layer silk, which can enhance the stability of the internal structure of the center silk and further improve the support stability of the center silk. Meanwhile, the protective layer is provided with an arc-shaped groove, and when the steel wire rope strand is twisted on the outer periphery of the center silk, part of the strands can be clamped in the arc-shaped groove, thereby increasing the bonding force between the center silk and the strands. The protective layer is also provided with an oil outlet hole, which does not affect the lubricating effect of the center silk on the steel wire strands, and the oil outlet hole is arranged as an oval recess and a small hole at the center point of the oval recess. The long axis direction of the oval recess is consistent with the direction of the strand twisting, and a small cavity can be formed between the strand and the small hole. When the steel wire rope works, the air in the small cavity is squeezed out, and the lubricating oil in the center silk flows into the entire small cavity through the small hole, thereby forming a suction force between the strands and the center silk and making the structure more stable. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a cross-sectional structure schematic view of the light good stability composite rope core of the utility model.

[0017] Figure 2 It is a protective layer outer periphery structure schematic view of the utility model.

[0018] In the figure: 1 - fine sword -palm filament, 2 - aramid fiber filament, 3 - steel filament, 4 - second fine sword -palm filament, 5 - protective layer, 501 - arc-shaped groove, 502 - oval recess, 503 - small hole. DETAILED DESCRIPTION

[0019] In order to make the personnel in the technical field better understand the utility model scheme, the utility model is further explained in detail below in combination with the drawings. The described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0020] As Figure 1 And Figure 2As shown, a composite rope core with light weight and good stability includes a center wire and an outer wire, the outer wire spirally wraps the center wire. The center wire includes a sisal filament 1 and a plurality of aramid fiber filaments 2, the aramid fiber filaments 2 spirally wrap the sisal filament 1. The outer wire includes a plurality of second sisal filaments 4 and a plurality of steel filament 3, m steel filaments 3 are arranged between two adjacent second sisal filaments 4, m is 1 or 2 or 3. That is, one steel filament 3 is arranged between two adjacent second sisal filaments 4, or two steel filaments 3 are arranged between two adjacent second sisal filaments 4, or three steel filaments 3 are arranged between two adjacent second sisal filaments 4. The number of steel filaments 3 arranged between two adjacent second sisal filaments 4 can be selected according to actual needs. The more the number of steel filaments 3 arranged between two adjacent second sisal filaments 4, the better the supportability of the rope core, and the flexibility and lightness of the rope core also decrease accordingly. The steel filament 3 includes six outer galvanized steel filaments and one center galvanized steel filament, the outer galvanized steel filaments spirally wrap the center galvanized steel filament, and the wrapped center galvanized steel filament is formed into a compact shape by forging. The center galvanized steel filament has a hexagonal structure.

[0021] The outer periphery of the outer wire is provided with a protective layer 5, the outer periphery of the protective layer 5 is provided with an arc-shaped groove 501, the arc-shaped groove 501 is spirally arranged on the outer periphery of the protective layer 5, a plurality of oil outlet holes are arranged in the arc-shaped groove 501, one end of the oil outlet hole is in communication with the outer wire, and the other end of the oil outlet hole is in communication with the outside.

[0022] The oil outlet hole includes an elliptical pit 502 and a small circular hole 503 arranged at the center point of the elliptical pit 502, and the small circular hole 503 is in communication with the inside and outside of the protective layer 5 at both ends. The long axis direction of the elliptical pit 502 is parallel to the center line of the arc-shaped groove 501, that is, the long axis direction of the elliptical pit 502 is consistent with the direction of the steel strand.

[0023] The composite rope core is provided with a steel strand outside, the radial interval distance between adjacent oil outlet holes is n steel strand lay lengths, and n is an integer greater than or equal to 1. n includes but is not limited to 1, 2, 3, 4 and 5. Taking one of the oil outlet holes as a reference, there are two oil outlet holes adjacent to the oil outlet hole in opposite directions, which are denoted as A oil outlet hole and B oil outlet hole. The radial interval distance between the A oil outlet hole and the oil outlet hole can be 1 steel strand lay length, and the radial interval distance between the B oil outlet hole and the oil outlet hole can be 1 steel strand lay length. Or the radial interval distance between the A oil outlet hole and the oil outlet hole can be 1 steel strand lay length, and the radial interval distance between the B oil outlet hole and the oil outlet hole can be 2 steel strand lay lengths. Or the radial interval distance between the A oil outlet hole and the oil outlet hole can be 2 steel strand lay lengths, and the radial interval distance between the B oil outlet hole and the oil outlet hole can be 1 steel strand lay length. Or the radial interval distance between the A oil outlet hole and the oil outlet hole can be 2 steel strand lay lengths, and the radial interval distance between the B oil outlet hole and the oil outlet hole can be 2 steel strand lay lengths.

[0024] The width of the arc-shaped groove 501 is consistent with the diameter of the steel wire strand. When the steel wire strand is twisted outside the composite core, the steel wire strand part is just embedded in the arc-shaped groove 501, and the bonding force of the steel wire strand and the composite core can be enhanced. It should be noted that the width of the arc-shaped groove 501 and the spiral track can be adjusted according to the steel wire strand that needs to be limited.

[0025] The protective layer 5 is an elastic rubber protective layer.

[0026] The protective layer 5 is filled with lubricating grease.

[0027] The outer layer galvanized steel wire and the center galvanized steel wire have the same diameter.

[0028] The second sisal fine wire 4 has a diameter of 0.8-1.2 times of the diameter of the steel fine wire 3.

[0029] The center wire includes one sisal fine wire 1 and six aramid fiber fine wires 2, and the diameters of the sisal fine wire 1 and the aramid fiber fine wire 2 are consistent.

[0030] The utility model discloses a composite core with good light weight and stability, which is provided with a protective layer on the outer periphery of the outer layer wire. The protective layer can enhance the stability of the internal structure of the core and further improve the supporting stability of the core. Meanwhile, the protective layer is provided with an arc-shaped groove. When the steel wire strand is twisted on the outer periphery of the core, part of the strand can be clamped in the arc-shaped groove, thereby increasing the bonding force between the core and the strand. The arc-shaped groove is provided with an oil outlet hole, which can ensure that the core fully lubricates the steel wire strand. The oil outlet hole is in the form of an oval pit and a small circular hole arranged at the center point of the oval pit. The strand and the core form a suction force, and the structure is more stable.

[0031] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model, and do not limit the utility model to the specific embodiments described. Obviously, according to the content of the specification, other modifications and changes can be made. The embodiments selected and described in the specification are to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The embodiments are not a limitation of the utility model, and any simple modification of the utility model is within the protection scope of the utility model.

Claims

1. A lightweight, stable composite core rope comprising a central filament and an outer layer of filaments helically twisted around the central filament, characterized in that: The center wire comprises one sisal fiber and several aramid fiber filaments spirally wrapped around the sisal fiber; the outer wire comprises several second sisal filaments and several steel filaments, m steel filaments are arranged between two adjacent second sisal filaments, and m is 1 or 2 or 3; the steel filaments comprise six outer galvanized steel filaments and one center galvanized steel filament, the outer galvanized steel filaments spirally wrap around the center galvanized steel filament; the outer periphery of the outer wire is provided with a protective layer, the outer periphery of the protective layer is provided with an arc-shaped groove, the arc-shaped groove is spirally arranged on the outer periphery of the protective layer, a plurality of oil outlet holes are arranged in the arc-shaped groove, one end of the oil outlet hole is in communication with the outer wire, and the other end of the oil outlet hole is in communication with the outside.

2. The lightweight, stable composite rope core of claim 1, wherein: The oil outlet hole comprises an elliptical pit and a small circular hole arranged at the center point of the elliptical pit, and the two ends of the small circular hole are respectively in communication with the inside and outside of the protective layer.

3. The lightweight, stable composite rope core of claim 1, wherein: The composite rope core is externally provided with a steel strand, and the radial interval distance between adjacent oil outlet holes is n steel strand lay lengths, and n is an integer greater than or equal to 1.

4. The lightweight, stable composite rope core of claim 3, wherein: The width of the arc-shaped groove is consistent with the diameter of the steel strand.

5. The lightweight, stable composite rope core of claim 1, wherein: The protective layer is an elastic rubber protective layer.

6. The lightweight, stable composite rope core of claim 5, wherein: The protective layer is filled with lubricating grease.

7. The lightweight, stable composite rope core of claim 1, wherein: The center galvanized steel filament has a hexagonal structure.

8. The lightweight, stable composite rope core of claim 7, wherein: The outer galvanized steel filaments and the center galvanized steel filament have consistent diameters.

9. The lightweight, stable composite rope core of claim 8, wherein: The diameter of the second sisal filament is 0.8-1.2 times the diameter of the steel filament.

10. The lightweight, stable composite rope core of claim 1, wherein: The center wire comprises one sisal filament and six aramid fiber filaments, and the diameters of the sisal filament and the aramid fiber filaments are consistent. The center wire comprises one sisal filament and six aramid fiber filaments, and the diameters of the sisal filament and the aramid fiber filaments are consistent.

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