High-strength reel cable

Abstract

The utility model discloses a high-strength reel cable, which is characterized in that the high-strength reel cable comprises a cable core, and the periphery of the cable core is sequentially coated with an inner protective layer, a braided reinforcing layer and an outer protective layer from inside to outside. The cable core comprises three identical power insulation wire cores, three identical ground insulation wire cores, six identical reinforcing wire cores and a strand of reinforcing filling rope. The cable provided by the utility model has good tensile property, torsion resistance and wear resistance, thereby having high use reliability and long service life.

Description

Technical Field

[0001] This utility model relates to a cable, specifically a high-strength drum cable with a rated voltage of 0.6 / 1kV. Background Technology

[0002] Drum cables are suitable for power supply systems of various grab buckets, gantry cranes, and hoists with a rated voltage of 0.6 / 1 kV. Due to frequent winding and unwinding operations, the cables need to have good tensile strength, torsional strength, and abrasion resistance. The main problem with conventional drum cables is that there are no reinforcing cores in the cable core. The tensile and torsional stress of the cable mainly relies on the braided reinforcing layer. When the winding stress of the cable exceeds the local stress that the braided reinforcing layer can withstand, the braided reinforcing layer will break locally. Ultimately, the weak points of the drum cable will be damaged and it will become unusable. In addition, after the outer sheath wears down and fails after long-term use, the braided reinforcing layer will also be worn down and damaged, which will accelerate the wear of the inner sheath and ultimately shorten the service life of the drum cable. Summary of the Invention

[0003] In order to solve the above problems, this utility model provides a high-strength reel cable.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A high-strength reel cable includes a cable core, and the cable core is covered from the inside out with an inner sheath, a braided reinforcing layer, and an outer sheath. The cable core includes three identical power insulated wires, three identical ground insulated wires, six identical reinforcing wires, and one reinforcing filler rope.

[0006] In the aforementioned high-strength reel cable, the three power-insulated cores are in contact with each other, and the one strand of reinforcing filler rope is located at the center of the three power-insulated cores.

[0007] In the aforementioned high-strength reel cable, the three ground-insulated cores are symmetrically distributed in the gaps between the power-insulated cores, and the ground-insulated cores respectively form contact and abutment with two adjacent power-insulated cores.

[0008] In the aforementioned high-strength reel cable, the six reinforcing cores are distributed in the gap between the power insulation core and the ground insulation core, and respectively contact and abut against both of them. The reinforcing cores on both sides of the power insulation core and the reinforcing cores on both sides of the ground insulation core are symmetrically arranged.

[0009] In the aforementioned high-strength reel cable, the power insulated core and the ground insulated core include a soft copper conductor and an insulation layer. The soft copper conductor is one of the fifth type or the sixth type of soft conductor, and the insulation layer is an elastomeric insulating material tightly extruded onto the soft copper conductor.

[0010] In the aforementioned high-strength reel cable, the reinforcing core includes a steel wire rope and an insulation layer, wherein the insulation layer is an elastomeric insulating material tightly extruded onto the steel wire rope.

[0011] In the aforementioned high-strength reel cable, the reinforcing filler rope is made of high-strength fiber filaments twisted together.

[0012] In the aforementioned high-strength reel cable, the inner sheath is extruded and wrapped around the cable core by an elastomeric sheath material.

[0013] In the aforementioned high-strength reel cable, the braided reinforcing layer is made of multiple strands of high-strength fiber filaments woven on the inner sheath, with a braiding density of (40-60)%.

[0014] In the aforementioned high-strength reel cable, the outer sheath is formed by semi-extruding an elastomeric sheath material onto a braided reinforcing layer.

[0015] The beneficial effects of this utility model are:

[0016] This invention has good tensile strength, torsional resistance, and wear resistance, thus having high reliability and lifespan. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 Figure 1 shows a schematic diagram of the structure of this utility model. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0020] See Figure 1 The high-strength reel cable provided by this utility model includes a cable core 500. The cable core 500 is surrounded by an inner sheath 600, a braided reinforcing layer 700, and an outer sheath 800 from the inside out. The cable core 500 includes three identical power insulated wire cores 100, three identical ground insulated wire cores 200, six identical reinforcing wire cores 300, and one reinforcing filler rope 400.

[0021] Three power-insulated wire cores 100 are in contact with each other, and one reinforcing filler rope 400 is located at the center of the three power-insulated wire cores 100; three ground-insulated wire cores 200 are symmetrically distributed in the gaps between the power-insulated wire cores 100, and the ground-insulated wire cores 200 respectively contact and abut with two adjacent power-insulated wire cores 100; six reinforcing wire cores 300 are distributed in the gaps between the power-insulated wire cores 100 and the ground-insulated wire cores 200, and respectively contact and abut with both, and the reinforcing wire cores 300 on both sides of the power-insulated wire cores 100 and the reinforcing wire cores 300 on both sides of the ground-insulated wire cores 200 are symmetrically arranged.

[0022] The power insulated conductor 100 includes a soft copper conductor 110 and an insulation layer 120. The soft copper conductor 110 is one of the fifth type or the sixth type of soft conductor, and the insulation layer 120 is an elastic insulating material tightly extruded onto the soft copper conductor 110.

[0023] The ground-insulated core 200 includes a soft copper conductor 210 and an insulation layer 220. The soft copper conductor 210 is one of the fifth type or the sixth type of soft conductor, and the insulation layer 220 is an elastic insulating material tightly extruded onto the soft copper conductor 210.

[0024] Furthermore, the materials of the soft conductor 110 and the soft conductor 210 can be copper, tin-plated copper, or thermoplastic elastomer (TPE), ethylene propylene rubber (EPR), or rigid ethylene propylene rubber (HEPR).

[0025] The reinforcing core 300 includes a steel wire rope 310 and an insulation layer 320. The insulation layer 320 is an elastic insulating material tightly extruded onto the steel wire rope 310.

[0026] Furthermore, the steel wire rope 310 is specifically a galvanized steel wire rope for operation, which is made of multiple galvanized steel wires twisted together in a regular manner. The number of individual wires is 7, 19, or 37, and the nominal diameter of each individual wire is 0.2mm to 0.4mm.

[0027] The reinforced filler rope 400 is made of high-strength fiber filaments twisted together.

[0028] The inner sheath 600 is extruded and wrapped around the cable core 500 by an elastomeric sheath material. This structure makes the cable core 500 structurally stable and not easily deformed.

[0029] The braided reinforcing layer 700 is made of multiple strands of high-strength fiber filaments woven on the inner sheath 600, with a braiding density of (40-60)%. This structure allows the outer sheath 800 to have good adhesion to the inner sheath 600, thus making the inner sheath 600, the braided reinforcing layer 700, and the outer sheath 800 an integral structure.

[0030] The outer sheath 800 is made by semi-extruding an elastomer sheath material onto the braided reinforcing layer 700.

[0031] Furthermore, the inner sheath 600 and the outer sheath 800 use the same elastomer sheath material, specifically polyurethane elastomer sheath material, which has good elasticity and wear resistance.

[0032] The cable's single reinforcing filler rope 400, the steel wire rope 310 with six reinforcing cores 300, and the braided reinforcing layer 700 are all made of high-strength materials and are symmetrically structured and evenly distributed within the cable core. This structure and material ensure that the cable bears stress evenly and effectively protects the power insulation core 100 and the ground insulation core 200 from damage. As a result, the cable has good tensile strength and torsional resistance. The cable core 500 can effectively reduce the excessive stress on the braided reinforcing layer 700 without causing damage, thus giving the cable high reliability and lifespan.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength reel cable, characterized in that: The high-strength reel cable includes a cable core, which is covered from the inside out with an inner sheath, a braided reinforcing layer, and an outer sheath. The cable core includes three identical power insulated wires, three identical ground insulated wires, six identical reinforcing wires, and one reinforcing filler rope.

2. The high-strength reel cable according to claim 1, characterized in that: The three power-insulated wire cores are in contact with each other, and the one strand of reinforcing filler rope is located at the center of the three power-insulated wire cores.

3. A high-strength reel cable according to claim 1, characterized in that: The three ground-insulated cores are symmetrically distributed in the gaps between the power-insulated cores, and the ground-insulated cores respectively make contact with two adjacent power-insulated cores.

4. A high-strength reel cable according to claim 1, characterized in that: The six reinforcing wires are distributed in the gap between the power insulation wire and the ground insulation wire, and respectively contact and abut against both of them. The reinforcing wires on both sides of the power insulation wire and the reinforcing wires on both sides of the ground insulation wire are symmetrically arranged.

5. A high-strength reel cable according to claim 1, characterized in that: The power insulated core and the ground insulated core include a soft copper conductor and an insulation layer. The soft copper conductor is one of the fifth type or the sixth type of soft conductor. The insulation layer is an elastomeric insulating material tightly extruded onto the soft copper conductor.

6. A high-strength reel cable according to claim 1, characterized in that: The reinforcing core includes a steel wire rope and an insulation layer, wherein the insulation layer is an elastomeric insulating material tightly extruded onto the steel wire rope.

7. A high-strength reel cable according to claim 1, characterized in that: The reinforcing filler rope is made of high-strength fiber strands twisted together.

8. A high-strength reel cable according to claim 1, characterized in that: The inner sheath is extruded and wrapped onto the cable core by an elastomeric sheath material.

9. A high-strength reel cable according to claim 1, characterized in that: The woven reinforcement layer is made of multiple strands of high-strength fiber filaments woven on the inner protective layer, with a weaving density of 40-60%.

10. A high-strength reel cable according to claim 1, characterized in that: The outer sheath is formed by semi-extrusion of an elastomeric sheath material onto a woven reinforcing layer.

Images