Flexible torsion-resistant drag chain cable

Abstract

The utility model relates to a flexible torsion-resistant tow chain cable, which comprises a central rope, a plurality of first cable cores are uniformly distributed on the circumference of the outer side of the central rope, a first flexible wrapping tape wraps the outer side of each first cable core, and a first flame-retardant filler is filled in a gap among the first flexible wrapping tape, the first cable cores and the central rope. The outer side of the first flexible wrapping tape is coated with a first shielding layer, a plurality of second cable cores and steel wire ropes are evenly distributed on the circumference of the outer wall of the first shielding layer, the second cable cores and the steel wire ropes are alternately arranged, and the outer sides of the second cable cores are coated with a second flexible wrapping tape. Gaps among the second flexible wrapping tape, the second cable core, the steel wire rope and the first shielding layer are filled with a second flame-retardant filler, the second flexible wrapping tape is coated with a second shielding layer, the second shielding layer is coated with a foaming sheath, the foaming sheath is coated with a wear-resistant braid layer, and the wear-resistant braid layer is coated with an outer sheath. The flexible cable is good in flexibility, torsion resistance and flame retardant property, and long in service life.

Description

Technical Field

[0001] The utility model relates to the field of cables, in particular to a flexible torsion-resistant drag chain cable. Background Art

[0002] Drag chain cables are highly flexible special cables that can move back and forth with the drag chain without being easily worn. Compared with fixed cables, drag chain cables require frequent bending and stretching movements, so they have greater mechanical wear and may have a relatively short lifespan. However, current drag chain cables have problems such as poor flex, bending and torsion resistance, lack of flexibility, poor mechanical properties, and are not suitable for harsh environmental conditions. Summary of the invention

[0003] The utility model aims to solve the deficiencies of the prior art and provides a flexible torsion-resistant drag chain cable.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a flexible torsion-resistant drag chain cable, comprising a center rope, a plurality of first cable cores are evenly distributed on the outer circumference of the center rope, the outer side of the first cable core is coated with a first flexible wrapping tape, the gap between the first flexible wrapping tape and the first cable core and the center rope is filled with a first flame-retardant filler, the outer side of the first flexible wrapping tape is coated with a first shielding layer, a plurality of second cable cores and steel wire ropes are evenly distributed on the outer circumference of the outer wall of the first shielding layer, and the second cable cores and the steel wire ropes are alternately arranged, the outer side of the second cable core is coated with a second flexible wrapping tape, the gap between the second flexible wrapping tape and the second cable core, the steel wire rope and the first shielding layer is filled with a second flame-retardant filler, the outer side of the second flexible wrapping tape is coated with a second shielding layer, the outer side of the second shielding layer is coated with a foam sheath, the outer side of the foam sheath is coated with a wear-resistant braided layer, and the outer side of the wear-resistant braided layer is coated with an outer sheath.

[0005] Particularly, the first flame retardant filler is a flame retardant polypropylene tape.

[0006] Particularly, the second flame retardant filler is an organic silicon filler.

[0007] Particularly, the wear-resistant braided layer is an aramid fiber braided layer.

[0008] Particularly, the outer sheath is a polyurethane outer sheath.

[0009] The beneficial effects of the utility model are as follows: the utility model arranges the first cable core and the second cable core in layers to reduce the extrusion between each other, and the cable cores are wrapped with corresponding flame retardant fillers to improve the flame retardant performance and flexibility of the cable. At the same time, the foam sheath is used to reduce the weight of the cable and increase the softness and bending performance; the wear-resistant braided layer enhances the tensile strength and abrasion resistance of the cable while maintaining good flexibility. The cable has high overall softness, good mechanical properties, good flexure resistance, bending resistance and torsion resistance, is suitable for use in harsh environmental conditions, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] In the figure: 1-center rope; 2-first cable core; 3-first flame retardant filler; 4-first flexible wrapping tape; 5-first shielding layer; 6-second cable core; 7-steel wire rope; 8-second flame retardant filler; 9-second flexible wrapping tape; 10-second shielding layer; 11-foaming sheath; 12-wear-resistant braided layer; 13-outer sheath;

[0012] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0014] like Figure 1 As shown, a flexible torsion-resistant drag chain cable comprises a central rope 1, a plurality of first cable cores 2 are evenly distributed on the outer circumference of the central rope 1, the outer side of the first cable core 2 is coated with a first flexible wrapping tape 4, the gap between the first flexible wrapping tape 4 and the first cable core 2 and the central rope 1 is filled with a first flame-retardant filler 3, the outer side of the first flexible wrapping tape 4 is coated with a first shielding layer 5, a plurality of second cable cores 6 and steel wire ropes 7 are evenly distributed on the outer wall of the first shielding layer 5, and the second cable cores 6 and the steel wire ropes 7 are alternately arranged, the outer side of the second cable core 6 is coated with a second flexible wrapping tape 9, the gap between the second flexible wrapping tape 9 and the second cable core 6, the steel wire rope 7 and the first shielding layer 5 is filled with a second flame-retardant filler 8, the outer side of the second flexible wrapping tape 9 is coated with a second shielding layer 10, the outer side of the second shielding layer 10 is coated with a foaming sheath 11, the outer side of the foaming sheath 11 is coated with a wear-resistant braided layer 12, and the outer side of the wear-resistant braided layer 12 is coated with an outer sheath 13.

[0015] The first cable core 2 and the second cable core 6 are both thin cable cores, replacing the traditional thick cable core with multiple thin cable cores, and are layered to enhance the flexibility of the cable, so that they can better adapt to bending and are not easy to break; the conductor in the cable core can also use high-purity soft copper as the conductor material to improve the ductility and flexibility of the conductor.

[0016] The first flame retardant filler 3 is a flame retardant polypropylene tape, which has a good flame retardant effect while maintaining certain mechanical properties; the second flame retardant filler 8 is a silicone filler, which not only has good high temperature resistance and flame retardant properties, but also can maintain the softness and elasticity of the cable.

[0017] The wear-resistant braided layer 12 is an aramid fiber braided layer, which significantly enhances the tensile strength and abrasion resistance of the cable while maintaining good flexibility; the foamed sheath 11 can reduce the weight of the cable and increase softness and bending performance; the outer sheath 13 is a polyurethane outer sheath, which has good wear and tear resistance, and also has a certain flexibility, which can adapt to high-speed movement and friction in the drag chain.

[0018] The utility model arranges the first cable core 2 and the second cable core 3 in layers to reduce the extrusion between each other, and the cable cores are wrapped by corresponding flame retardant fillers to improve the flame retardant performance and flexibility of the cable. At the same time, the foam sheath 11 is adopted to reduce the weight of the cable and increase the softness and bending performance; the wear-resistant braided layer 12 enhances the tensile strength and abrasion resistance of the cable while maintaining good flexibility. The cable has high overall softness, good mechanical properties, good flexure resistance, bending resistance and torsion resistance, is suitable for use in harsh environmental conditions, and has a long service life.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or it is directly applied to other occasions without improvement, it is within the protection scope of the utility model.

Claims

1. A flexible torsion-resistant drag chain cable, characterized in that: The invention comprises a central rope (1), a plurality of first cable cores (2) are evenly distributed on the outer circumference of the central rope (1), the outer side of the first cable core (2) is coated with a first flexible wrapping tape (4), the gap between the first flexible wrapping tape (4) and the first cable core (2) and the central rope (1) is filled with a first flame retardant filler (3), the outer side of the first flexible wrapping tape (4) is coated with a first shielding layer (5), the outer wall of the first shielding layer (5) is evenly distributed with a plurality of second cable cores (6) and steel wire ropes (7), and the second cable cores (6) and steel wire ropes (7) are cross-connected. The second cable core (6) is alternatively arranged, the outer side of the second cable core (6) is coated with a second flexible wrapping tape (9), the gap between the second flexible wrapping tape (9) and the second cable core (6), the steel wire rope (7) and the first shielding layer (5) is filled with a second flame retardant filler (8), the outer side of the second flexible wrapping tape (9) is coated with a second shielding layer (10), the outer side of the second shielding layer (10) is coated with a foaming sheath (11), the outer side of the foaming sheath (11) is coated with a wear-resistant braided layer (12), and the outer side of the wear-resistant braided layer (12) is coated with an outer sheath (13).

2. A flexible torsion-resistant drag chain cable according to claim 1, characterized in that: The first flame retardant filler (3) is a flame retardant polypropylene tape.

3. A flexible torsion-resistant drag chain cable according to claim 1, characterized in that: The second flame retardant filler (8) is an organic silicon filler.

4. A flexible torsion-resistant drag chain cable according to claim 1, characterized in that: The wear-resistant braided layer (12) is an aramid fiber braided layer.

5. A flexible torsion-resistant drag chain cable according to claim 1, characterized in that: The outer sheath (13) is a polyurethane outer sheath.

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