CN201477953U - Tensile flexible cable for driving operation buttons - Google Patents

Abstract

The utility model discloses a tension-resistant flexible cable for driving operation buttons, which comprises a cable core, a filling layer is arranged in the gap between the cable cores to maintain the roundness of the cable, and a wrapping layer is arranged to cover the cable core and the filling layer. Covered in it, the outermost layer of the cable is an outer sheath extruded on the tape layer, and the cable core is composed of a steel wire rope in the center of the cable core and an insulated wire core arranged around the periphery of the steel wire rope , each insulated wire core is composed of a conductor and an insulating layer extruded on the conductor. The cable of the utility model has high flexibility and strong tensile performance, and the conductor is not broken when bent many times, and the insulation and the sheath are not chapped.

Description

Tensile flexible cable for driving operation buttons

Technical field:

The utility model relates to a tensile flexible cable for driving operation buttons, which belongs to the technical field of electric wires and cables.

Background technique:

In special industries such as driving and cranes, cables provide power and signal control operations for equipment. This type of cable has high performance requirements and a relatively complex structure. Its cross-section can generally be round or flat. At present, the power cables used in such equipment There are the following defects: since the cable not only bears its own gravity during use, but also bears the pulling force generated by the back and forth movement of the equipment, it is easy to cause the core of the cable to break and cause scrapping; in addition, the cable is in use, Frequent movement is required, slippage occurs between the core and the sheath of the cable, the insulated core protrudes out of the sheath, the insulation is stretched, and the cable is easily broken down when a strong current passes through it. However, the current cables of this type are not soft enough, have small bending degree, small tensile force, and the conductors are easy to break. If the cable breaks down during use, it often leads to production accidents.

Invention content:

In order to overcome the defects of the prior art, the purpose of this utility model is to provide a tensile flexible cable for driving operation buttons, which has high flexibility and strong tensile performance, and the conductor does not break after being bent many times, and is insulated and The sheath is not chapped.

The utility model solves the technical problem and adopts the following technical solutions:

A tension-resistant flexible cable for driving operation buttons, including a cable core, a filling layer is arranged in the gap between the cable cores to maintain the roundness of the cable, and a wrapping layer is provided to cover the cable core and the filling layer. The outermost layer of the cable is an outer sheath extruded on the tape layer. The cable core is composed of a steel wire rope in the center of the cable core and an insulated wire core arranged around the periphery of the steel wire rope. Each insulated wire core It consists of a conductor and an insulating layer extruded on the conductor.

The conductor adopts category 6 extra-soft tinned copper stranded conductive wire core.

The outer sheath is made of heat-resistant, flame-resistant and oil-resistant nitrile rubber.

Compared with the prior art, the beneficial effects of the utility model are reflected in:

The cable conductor is relatively compact and flexible, and is not easy to break, that is, the cable has high flexibility, which is about 15 times that of ordinary cables; the insulation layer and outer sheath have excellent weather resistance, heat aging resistance, flame retardancy, Oil resistance, high tensile strength, good toughness, resilience, excellent compression set and excellent electrical insulation performance, while the insulating layer and outer sheath are not chapped; The steel wire rope (single diameter not greater than 1.0mm) makes it have tensile properties, and its tensile strength can reach 800Mpa, so as to ensure that the outer sheath and conductor will not break or deform, and run safely. The cable of the utility model is soft, tensile and flame retardant, which solves the problems that the control cable of the driving control system is not soft enough, has small bending degree, small tensile force, and the conductor is easy to break, so that it can be widely used in various bridges and beams. The control line between the operation button of type and ground rail type and the driving control system.

Description of drawings:

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

Labels in the figure: 1 Conductor, 2 Insulation layer, 3 Steel wire rope, 4 Filling layer, 5 Tape layer, 6 Outer sheath.

The utility model will be further described below through specific embodiments in conjunction with the accompanying drawings.

The specific implementation, non-limiting examples are as follows:

Embodiment: As shown in Figure 1, the conductor 1 adopts the 6th type of extra soft tinned copper stranded conductive wire core, and the conductor is produced through four stages of wire drawing-annealing and tinning-bundling-(re-twisting), and the conductor adopts bundle twisting Form, conductors with a cross-section below 4mm ² are in bundled form, conductors with a cross-section of 4mm ² and above, due to the large cross-section, the number of conductor single wires is too large, and re-twisting is required after the bundle, and conductors below 4mm ² The maximum diameter of the medium single wire is 0.16mm, and at the same time, the small-pitch bundle wire is used below ^2.5mm2 , and the small-pitch bundle wire thickness is ^2.5mm2 and above. Extrusion, the temperature is controlled between 135±10°C; the tensile steel wire rope 3 adopts a thinner (single diameter not greater than 1.0mm) soft tensile steel wire rope, and the filling layer 4 is filled with hemp rope to keep the shape of the cable Roundness; the wrapping layer 5 is wrapped with non-woven fabric and covered with a covering rate of 20%; after being cabled, it forms an integral structure with the outer sheath 6 of the cable itself. The outer sheath 6 made of flame-retardant and oil-resistant nitrile rubber material is also extruded by an extrusion die, and the temperature is controlled between 140-170°C. The die can be adjusted according to the actual conditions of equipment and materials.

Claims (3)

1. moving operation button tension flexible cable, comprise cable conductor, be provided with packed layer (4) in the cable core gap to keep the roundness of cable, belting layer (5) is set to be coated on described cable core and packed layer wherein, the outermost layer of cable is the oversheath (6) that extrudes on described belting layer, it is characterized in that, described cable core constitutes by the hawser that is in cable core central authorities (3) with around the insulated wire cores that is arranged at described hawser periphery, and each insulated wire cores is by conductor (1) and extrude insulating barrier (2) formation on conductor.

2. a kind of moving operation button tension flexible cable according to claim 1 is characterized in that, described conductor (1) adopts the stranded conductor wire core of the special soft tin-coated copper of the 6th class.

3. a kind of moving operation button tension flexible cable according to claim 1 is characterized in that, described oversheath (6) adopts thermal resistance combustion oil resistant butadiene-acrylonitrile rubber to make.

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