Self-weight type anti-wind-shake photoelectric composite sling cable

Abstract

The utility model belongs to the technical field of cables, and provides a self-weight type anti-wind-shake photoelectric composite sling cable, which comprises a central reinforcing unit, a cable unit, an optical cable unit, a belting layer I, a lead bead chain I and a sheath I. The cable unit is arranged on the periphery of the central reinforcing unit. The optical cable unit and the cable unit are annularly distributed on the periphery of the central reinforcing unit; the belting layer I is arranged on the periphery of the cable unit and the optical cable unit; the wrapping tape layer I is filled with the lead bead chain I; the sheath I is arranged outside the belting layer I. Wherein the central reinforcing unit comprises a plurality of lead bead chains II and a braid layer, the lead bead chains II are mutually twisted, and the braid layer is arranged on the outer side of the lead bead chains. According to the utility model, the center reinforcing unit is filled with the stranded lead bead chains II so as to reinforce the counterweight of the cable, and the braided layer is arranged at the outer side of the stranded lead bead chains II after the lead bead chains II are stranded so as to prevent the lead bead chains II from loosening in the movement process; and meanwhile, gaps are filled in the belting layer I through the lead bead chains I, so that the cable is prevented from shaking and shifting during use.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, and particularly relates to a self-weight type anti-wind swing and optical-electric composite sling cable. Background Art

[0002] As a link connecting the cable storage basket and the port crane, the self-weight type anti-wind swing and optical-electric composite sling cable plays a crucial role in the lifting and loading / unloading process of port containers and is indispensable. When applied to a gantry crane, a cable storage basket needs to be installed on the upper frame of the sling, and a corresponding junction box needs to be installed on the trolley frame to achieve the connection of the cable. At the same time, a cable storage basket is installed on the upper frame of the sling, which is usually composed of a cable guiding mechanism in the shape of a funnel, a fence, and a basket body with a conical upward protrusion in the middle. Whether the sling cable is wound or released at the most reasonable speed and torque during the lifting and lowering process to adapt to the change of the sling height will directly affect whether the port crane can work normally.

[0003] Port cranes are generally installed by the sea where the wind force is strong. The sling cable is vulnerable to the influence of wind force. Ordinary cables will either generate large swings due to insufficient self-weight in this environment, causing the cable to fall off the cable storage basket during the retracting and extending process. When the lifting height and speed exceed a certain value or the wind force is too strong, the sling cable is easily blown out of the cable storage basket, directly affecting the normal operation of the port crane. To overcome the influence of wind force, some sling cables alleviate this problem by increasing their own weight. However, due to the large self-weight, the cable itself is difficult to bear the resulting sagging tension, and local cable core breakage is likely to occur, posing a safety hazard to the transmission of control signals. Content of the Utility Model

[0004] Aiming at the defects in the prior art, the utility model provides a self-weight type anti-wind swing and optical-electric composite sling cable to solve the problems that when the self-weight of the cable of the cable storage basket sling is insufficient, it is easily blown out of the cable storage basket by the wind force, or when the self-weight is large, local cable breakage is likely to occur.

[0005] The self-weight type anti-wind swing and optical-electric composite sling cable provided by the utility model includes:

[0006] A central strengthening unit;

[0007] A cable unit, arranged on the outer periphery of the central strengthening unit;

[0008] An optical cable unit, the optical cable unit and the cable unit are distributed around the outer periphery of the central strengthening unit;

[0009] A first wrapping layer, arranged on the outer peripheries of the cable unit and the optical cable unit;

[0010] A first lead bead chain, filled in the first wrapping layer;

[0011] Sheath Ⅰ, which is arranged outside the tape layer Ⅰ;

[0012] Among them, the central strengthening unit includes:

[0013] Several lead bead chains Ⅱ, and the lead bead chains Ⅱ are twisted together;

[0014] A braided layer, which is arranged outside the lead bead chains Ⅱ.

[0015] As can be seen from the above technical solutions, a self-weight type anti-wind-swaying optical and electrical composite sling cable provided by the present utility model is installed by the sea where there is strong wind all year round. If the cable is too light in weight, during the movement process, the position of the cable in the hanging state is likely to be changed by the strong wind, and the cable may be blown out of the basket. First, the central strengthening unit strengthens the weight of the cable. The central strengthening unit is filled after the lead bead chains Ⅱ are twisted, and a braided layer is arranged outside the twisted lead bead chains Ⅱ after twisting to prevent loosening during the movement process; at the same time, in the gaps in the tape layer Ⅰ, the lead bead chains Ⅰ are filled to ensure that the cable does not shake or deviate during use.

[0016] Optionally, the cable unit includes:

[0017] Lead bead chains Ⅲ;

[0018] Cable cores, which are arranged around the periphery of the lead bead chains Ⅲ with the lead bead chains Ⅲ as the center;

[0019] A tape layer Ⅱ, which is arranged outside the cable cores.

[0020] As can be seen from the above technical solutions, based on the lead bead chains Ⅲ, the weight of the cable unit itself is increased, and in cooperation with the lead bead chains Ⅰ and the lead bead chains Ⅱ, it is ensured that the cable does not shake or deviate during use.

[0021] Optionally, the cable core includes a conductor and an insulating layer, the insulating layer is arranged outside the conductor, and the conductor adopts a category six conductor. The self-weight type anti-wind-swaying optical and electrical composite sling cable needs to move up and down reciprocally frequently, and an important factor affecting the bending of the cable is the softness of the conductor. The present utility model selects a category six conductor with a smaller single wire diameter, making the conductor softer and easier to bend, and ensuring that the cable meets the normal operation requirements.

[0022] Optionally, the insulating layer is a cold-resistant elastomer material. The working environment of the self-weight type anti-wind-swaying optical and electrical composite sling cable belongs to outdoor operation, and the weather resistance of the insulation must be considered. Especially in winter, low temperature will have a greater impact on the bending performance of the cable. Ordinary materials will become hard, and forced bending will cause the cable to crack. Therefore, the present utility model selects a cold-resistant elastomer material.

[0023] Optionally, the optical cable unit includes:

[0024] Central strengthening member;

[0025] Optical fiber core, centered on the central strengthening member, is distributed around the outer periphery of the central strengthening member;

[0026] Wrapping layer, arranged outside the optical fiber core;

[0027] Sheath II, arranged outside the wrapping layer.

[0028] Optionally, the central strengthening member includes an aramid core and a coating layer, and the coating layer is arranged outside the aramid core.

[0029] Optionally, the sheath I is made of polyurethane. The self-weight type anti-wind-swaying optical and electrical composite sling cable is in a frequent up-and-down reciprocating state during operation. Especially at the top of the cable storage basket, the cable is constantly rubbing against the basket edge, and there is a particularly high requirement for the wear resistance of the cable sheath I. Polyurethane has good wear resistance. By using polyurethane material for the sheath I, it can ensure that the tensile strength is not less than 20 Mpa and the elongation at break is not less than 520%, ensuring that the cable surface is not damaged.

[0030] Adopting the above technical solution, the present application has the following technical effects:

[0031] A self-weight type anti-wind-swaying optical and electrical composite sling cable provided by the present utility model is installed by the sea where there is strong wind all year round. If the cable is too light in weight, the position of the cable in the vertical state is likely to be changed by the strong wind during the movement, and the cable may be blown out of the basket. First, the weight of the cable is strengthened through the central strengthening unit. The central strengthening unit is filled after being stranded by the lead bead chain II, and a braided layer is arranged outside the stranded lead bead chain II after stranding to prevent loosening during the movement; at the same time, the lead bead chain I is filled in the gaps in the tape layer to ensure that the cable does not sway or shift during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0033] Figure 1 It is a schematic diagram of a self-weight type anti-wind-swaying optical and electrical composite sling cable provided by an embodiment of the present utility model.

[0034] Reference numerals:

[0035] 1 - Central strengthening unit; 11 - Lead bead chain II; 12 - Braided layer; 2 - Cable unit; 21 - Lead bead chain III; 22 - Cable core; 23 - Wrapping layer II; 3 - Optical cable unit; 31 - Central strengthening member; 32 - Optical fiber core; 33 - Wrapping layer; 34 - Sheath II; 4 - Wrapping layer I; 5 - Lead bead chain I; 6 - Sheath I. Specific embodiments

[0036] The embodiments of the technical solution of the present utility model will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, and therefore are only examples and cannot be used to limit the protection scope of the present utility model.

[0037] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present utility model belongs.

[0038] Terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, "a plurality" means more than two unless otherwise clearly and specifically defined.

[0039] As Figure 1 shown, a self-weight type anti-wind-sway optical and electrical composite sling cable provided in this embodiment includes a central strengthening unit 1, a cable unit 2, an optical cable unit 3, a wrapping layer I 4, a lead bead chain I 5, and a sheath I 6. The optical cable unit 3 and the cable unit 2 are distributed around the outer periphery of the central strengthening unit 1; the wrapping layer I 4 is provided on the outer periphery of the cable unit 2 and the optical cable unit 3; the lead bead chain I 5 is filled in the wrapping layer I 4; the sheath I 6 is provided outside the wrapping layer I 4. Among them, the central strengthening unit 1 includes a plurality of lead bead chains II 11 and a braided layer 12. The lead bead chains II 11 are twisted together, and the braided layer 12 is provided on the outside of the twisted lead bead chains II 11.

[0040] Since the self-weight type anti-wind-sway optical and electrical composite sling cable is installed by the sea where there is strong wind all year round. If the cable is too light in weight, during the movement process, the position of the cable in the hanging state is likely to be changed by the strong wind, and the cable may be blown out of the basket. First, the central strengthening unit 1 strengthens the weight of the cable. The central strengthening unit 1 is filled with twisted lead bead chains II 11, and after twisting, the braided layer 12 is provided on the outside of the twisted lead bead chains II 11 to prevent loosening during the movement process; at the same time, in the gaps in the wrapping layer I 4, the lead bead chain I 5 is filled to ensure that the cable does not shake or shift during use.

[0041] See Figure 1, the cable unit 2 includes a lead bead chain III 21, a cable core 22, and a wrapping layer II 23. The cable core 22 is distributed around the periphery of the lead bead chain III 21 with the lead bead chain III 21 as the center; the wrapping layer II 23 is arranged outside the cable core 22. The weight of the cable unit 2 itself is increased based on the lead bead chain III 21, and in cooperation with the lead bead chain I 5 and the lead bead chain II 11, it is ensured that the cable does not shake or shift during use.

[0042] Optionally, the cable core 22 includes a conductor and an insulating layer. The insulating layer is arranged outside the conductor. The conductor is a category six conductor, and fiber filaments are arranged inside the conductor. The self-weight type anti-wind-sway and photoelectric composite sling cable needs to move up and down frequently. An important factor affecting the bending of the cable is the softness of the conductor. The present utility model selects a category six conductor with a smaller single wire diameter, making the conductor softer and easier to bend, ensuring that the cable meets normal operation requirements.

[0043] The product structure of the cable unit 2 is first grouped and stranded, and then assembled and stranded. Both the grouped stranding and the assembled stranding are produced by a back-twist stranding machine to ensure the stress release of the cable itself. Through the above structure and process, the stress generated during the operation of the cable is effectively offset and released.

[0044] Optionally, the insulating layer is a cold-resistant elastomer material. The working environment of the self-weight type anti-wind-sway and photoelectric composite sling cable belongs to outdoor operation, and the weather resistance of the insulation must be considered. Especially in winter, low temperature will have a greater impact on the bending performance of the cable. Ordinary materials will become hard, and forced bending will cause the cable to crack. Therefore, the present utility model selects a cold-resistant elastomer material.

[0045] As Figure 1 shown, the optical cable unit 3 includes a central strengthening member 31, an optical fiber core 32, a wrapping layer 33, and a sheath II 34. The optical fiber core 32 is distributed around the periphery of the central strengthening member 31 with the central strengthening member 31 as the center; the wrapping layer 33 is arranged outside the optical fiber core 32, and the sheath II 34 is arranged outside the wrapping layer 33. The wrapping layer 33 is wrapped with non-woven fabric, and the sheath II 34 is made of silicone rubber material. The optical cable unit 3 can provide necessary signal transmission for the photoelectric sensor of the sling to ensure the normal operation of the sling; when the sling moves up and down reciprocally, the photoelectric sensor will continuously sense the position and state of the sling and transmit this information back to the control system, thereby realizing precise control of the sling. In addition, the optical cable unit 3 can also transmit high-definition images around the sling, and these images can help the operator better monitor the operation state of the sling and ensure the safe operation of the sling.

[0046] The central strengthening member 31 includes an aramid core and a coating layer. The coating layer is arranged outside the aramid core; the coating layer is made of PBT material. The optical fiber core includes at least two OM1 optical fibers, filling paste, and a loose tube. The OM1 optical fibers and the filling paste are arranged inside the loose tube.

[0047] Optionally, the sheath Ⅰ6 is made of polyurethane. The self-weight type anti-wind-sway photoelectric composite lifting cable is in a frequent up-and-down reciprocating state during operation. Especially at the top of the cable storage basket, the cable is constantly rubbing against the basket edge, which requires particularly high wear resistance for the cable sheath Ⅰ. Polyurethane has good wear resistance. By using polyurethane material for the sheath Ⅰ6, the material has a tensile strength of not less than 20 Mpa and an elongation at break of not less than 520%, ensuring that the cable surface is not damaged.

[0048] In the description of the present invention, a large number of specific details are set forth. However, it is understood that the embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and technologies have not been shown in detail so as not to obscure the understanding of this specification.

[0049] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. A self-weight type anti-wind-sway optical and electrical composite hoisting cable for a sling, characterized in that, Comprising: A central strengthening unit; A cable unit, arranged on the outer periphery of the central strengthening unit; An optical cable unit, with the optical cable unit and the cable unit arranged annularly on the outer periphery of the central strengthening unit; A tape layer Ⅰ, arranged on the outer periphery of the cable unit and the optical cable unit; A lead bead chain Ⅰ, filled in the tape layer Ⅰ; A sheath Ⅰ, arranged outside the tape layer Ⅰ; Wherein, the central strengthening unit includes: A lead bead chain Ⅱ, with the lead bead chains Ⅱ twisted with each other; A braided layer, arranged outside the lead bead chain Ⅱ.

2. The self-weight type anti-wind-sway optical and electrical composite sling cable according to claim 1, wherein, The cable unit includes: A lead bead chain Ⅲ; A cable core, arranged annularly on the outer periphery of the lead bead chain Ⅲ with the lead bead chain Ⅲ as the center; A tape layer Ⅱ, arranged outside the cable core.

3. The self-weight type anti-wind-sway optical and electrical composite sling cable according to claim 2, wherein, The cable core includes a conductor and an insulating layer, the insulating layer is arranged outside the conductor, and the conductor is a category six conductor.

4. The self-weight type anti-wind-sway optical and electrical composite sling cable according to claim 3, characterized in that The insulating layer is a cold-resistant elastomer material.

5. The self-weight type anti-wind-sway optoelectronic composite sling cable according to claim 2, wherein The optical cable unit includes: A central strengthening member; An optical fiber core, arranged annularly on the outer periphery of the central strengthening member with the central strengthening member as the center; A wrapping layer, arranged outside the optical fiber core; A sheath Ⅱ, arranged outside the wrapping layer.

6. The self-weight type anti-wind swing optical and electrical composite sling cable according to claim 5, wherein The central strengthening member includes an aramid core and a coating layer, the coating layer is arranged outside the aramid core.

7. The self-weight type anti-wind swing optical and electrical composite sling cable according to claim 1, wherein The sheath Ⅰ is made of polyurethane material.

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