CN201336163Y - Anti-torsion environment-resisting reinforced type soft cable used for engineering and machinery - Google Patents

Abstract

The utility model relates to a flexible cable for torsion-resistant and environment-resistant reinforced engineering machinery, which belongs to the technical field of cables. Including insulated wire core and sheath layer, it is characterized in that there is a plastic tube with good flexibility in the center of the cable, multiple insulated wire cores are stranded with the plastic tube as the center to form a cable core, and a high-strength cotton tape is wrapped around the cable core Aromatic fiber braided layer is braided on high-strength cotton tape, and the sheath layer is extruded on the aromatic hydrocarbon fiber braided layer. Two symmetrical and parallel steel strands are arranged in the sheath layer on both sides of the cable, and the steel strands are longitudinally wrapped There is a layer of polyester strapping. The utility model has a novel and scientific structure, is easy to manufacture, improves product quality and performance, avoids cracks in the sheath layer, loose or broken internal structures, enhances the softness and flexibility of the cable, and improves the ability of the cable to withstand frequent torsion and bending. When the strength, extend the service life of the cable, can be used in frequent torsion, bending occasions.

Description

Anti-torsion and environment-resistant reinforced flexible cable for engineering machinery

technical field

The utility model relates to a cable, in particular to the structure of a torsion-resistant flexible cable for engineering machinery, which belongs to the technical field of cables.

Background technique

With the development of the economy and the improvement of people's living standards, the degree of mechanization has been greatly developed, especially the mechanical automation has made great progress. The cables used on mechanical automation equipment have also increased significantly, especially the amount of active robotic arms. At present, most of the cables used for robotic arms are ordinary rubber-sheathed cables, which generally include a cable core and an outer sheath with multiple insulated cores twisted, which have many defects in terms of mechanical strength and environmental resistance. Due to the large amount of activity, the cables used by the robotic arms are often bent, cracks will appear in the sheath layer of the cables, and the internal structure will become loose or broken. After a period of time, new cables must be replaced, resulting in high cost and inconvenient use.

Utility model content

The purpose of this utility model is to provide a flexible cable for engineering machinery with good mechanical strength, anti-twist and environment-resisting, aiming at the above-mentioned deficiencies in the existing cables for engineering mechanical arms.

The purpose of this utility model is achieved through the improvement of the existing cables. The flexible cable for anti-torsion and environment-resistant reinforced engineering machinery includes an insulating core and a sheath layer. Plastic tube, multiple insulated wire cores are stranded with the plastic tube as the center to form a cable core, and a high-strength cotton tape is wrapped around the cable core, and an aromatic fiber braid is woven on the high-strength cotton tape. On the layer, two symmetrical and parallel steel strands are arranged in the sheath layer on both sides of the cable, and the steel strands are longitudinally wrapped with a layer of polyester tape.

The insulated wire core is composed of 19 0.15mm copper single wires twisted and extruded with an insulating layer around the copper conductor.

The utility model has a novel and scientific structure, is easy to manufacture, improves product quality and performance, avoids cracks in the sheath layer, loose or broken internal structures, and prolongs the service life of the cable. A flexible plastic tube is set in the center of the cable to enhance the flexibility of the cable. The copper conductor is made of copper single wire twisted and then extruded with rubber insulation to form an insulated wire core. The thickness of the rubber insulation is consistent and fully vulcanized to ensure the flexibility of the cable, so that the cable will not damage the insulation layer when it is frequently twisted and bent. When stretching, the insulated wire core can slip to a certain extent without causing the insulated wire core to break. The use of high-strength cotton tape wrapping and fiber braiding layer ensures the strength of the cable when it is frequently subjected to torsion and bending, and minimizes the stress on the insulated core. In the sheath layer, two strands of steel strands are symmetrically placed on both sides of the cable in parallel to improve the mechanical strength of the cable. Make the cable withstand high tension and can be used in occasions where frequent torsion and bending.

Description of drawings

Fig. 1 is the structural representation of the utility model;

In the figure: 1 plastic pipe, 2 copper conductor, 3 insulating layer, 4 high-strength cotton cloth tape, 5 aromatic hydrocarbon fiber braiding layer, 6 steel strand, 7 polyester tape, 8 sheath layer.

Detailed ways

As shown in Figure 1, a flexible plastic tube 1 with a diameter of 2.5 mm is placed in the center of the cable. The hardness of the plastic tube is 4.9 N/cm ² , and the deformation rate of the tube is between 10% and 50%. 19 0.15mm copper single wires are twisted into a copper conductor 2, and a rubber insulating layer 3 is extruded on the copper conductor 2 to form an insulated wire core. The insulation adopts extruded extruded insulating layer, so that the thickness of the rubber insulating layer is consistent and fully vulcanized, and the electric field intensity is evenly distributed, which fully guarantees the electrical performance of the cable transmission and the good wear resistance of the insulating layer. 8 insulated wire cores are twisted into a cable core with a plastic tube as the center, and a high-strength cotton tape 4 is wrapped around the cable core, and an aromatic fiber braid layer 5 is braided on the high-strength cotton tape. The weaving density is greater than 30%, and the aromatic fiber is broken The strength is 179.7±10N, and the elongation at break is 19.6±4%. The fiber braid ensures the strength of the cable when it is subjected to frequent torsion and bending, and minimizes the stress on the insulated core. The sheath layer is extruded on the braided layer of aromatic hydrocarbon fiber, and two symmetrical and parallel steel strands 6 are arranged in the sheath layer 8 on both sides of the cable, and a layer of polyester tape 7 is longitudinally wrapped on the steel strand first. Then, the two strands of steel strands with polyester tapes and the cable core provided with high-strength cotton tapes and braided layers of aromatic fibers are extruded into the sheath layer 8 at the same time.

Claims (2)

1. A torsion-resistant and environment-resistant reinforced flexible cable for engineering machinery, including an insulated core and a sheath, characterized in that a plastic tube with good flexibility is arranged in the center of the cable, and a plurality of insulated cores are centered on the plastic tube The cable core is stranded, and the high-strength cotton tape is wrapped around the cable core, and the aromatic fiber braid is woven on the high-strength cotton tape. The sheath is extruded on the aromatic fiber braid, and there are symmetrical Two parallel strands of steel strands are longitudinally wrapped with a layer of polyester tape. 2. The torsion-resistant and environment-resistant reinforced flexible cable for construction machinery according to claim 1, wherein the insulated core is composed of 19 0.15mm copper single wires twisted and composed of a copper conductor with an extruded insulation layer around the periphery .

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