Wear-resistant waterproof rubber flexible cable of suspender

Abstract

The invention provides a wear-resistant waterproof rubber flexible cable of a suspender. The cable comprises a cable body and projections arranged symmetrically at the upper and lower ends of the cable body, and the cable body is composed of a cable core, an inner sheath, a bearing reinforced layer and an oversheath; the cable core is composed of a water-blocking tape wrapping layer and an internal core; the cable core is internally provided with three power cores and a grounding core; the water-blocking tape wrapping layer is extruded outside the power cores and the grounding core; the inner sheath is extruded outside the cable core; the bearing reinforced layer is extruded outside the inner sheath; the oversheath is extruded outside the bearing reinforced layer; and bearing steel ropes are arranged in the projections respectively. According to the structure of the cable, two high-intensity aviation steel ropes are added symmetrically and serve as bearing carriers when the oversheath is extruded, the cable has a large bearing capability as well as high mechanical, wear-resistant, corrosion-resistant, cold-resistant and waterproof performances, and the cable is especially suitable for suspenders of hoisting equipment.

Description

technical field [0001] The invention belongs to the technical field of special cables, and in particular relates to a flexible cable with a rubber sheath for a wear-resistant and waterproof suspender. Background technique [0002] my country has a vast territory, abundant resources and a long coastline. With the continuous development of my country's economic construction, the use of lifting equipment for cargo transportation is increasing, especially in ports, docks, and other places that require a large number of lifting equipment. [0003] The loading and unloading of goods in the shipping field is an important link. In the past, the efficiency of manual loading and unloading was very low, but now we have generally used lifting equipment for loading and unloading. Because the spreader moves up and down from the top of the boom instead of standing still during the loading and unloading process of the lifting equipment, the spreader needs power when it works, and the cable...

AI Technical Summary

Problems solved by technology

When the spreader rises to the highest point, the cable will be coiled on the top of the spreader, and the cable will automatically straighten when it descends. The cable must bear its own weight and be bent, dragged, squeezed and rubbed. It is also corroded by lubricating oil and seawater, so the cable sheath is easily damaged, resulting in short circuit of the cable and disconnection of the core

This requires that on the one hand, the lifting equipment should have protection functions against cable bending, dragging, extrusion and friction, as well as cold and corrosion resistance. However, it is obviously difficult for the lifting equipment to do so under working conditions. On the one hand, it must be considered that the cable itself has a certain resistance to bending, dragging, extrusion and friction, as well as cold and corrosion resistance, that is, the cable can still maintain normal operation when the cable is subjected to continuous bending, dragging, extrusion and friction at a certain temperature. In the event of short circuit and short circuit, the insulation and sheath materials will not crack, and the cables are required to have high strength, wear resistance, corrosion resistance, cold resistance, waterproof and other properties. So far, there is no special lifting device with the above properties. cable

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