Elliptical trailing cable for overhead vehicle

Abstract

The invention discloses an elliptical trailing cable for an overhead vehicle. The elliptical trailing cable comprises a cable core, an insulating layer, an armored layer and a sheath layer. The cablecore is composed of a main wire core, a ground wire core, a tensile rope and a filler. The ground wire core is composed of a ground wire conductor, a ground wire insulation, a ground wire filling layer, a steel pipe sheet and a ground wire rubber sleeve. The steel pipe sheet has a dumbbell-shaped cross section, and the ground wire conductor is arranged in the two ends of the steel pipe sheet. Themain wire core is composed of a main wire conductor, a main wire insulation, main wire conductive cloth and a main wire rubber sleeve. The two ends of the sheath layer are symmetrically provided witha steel rope core body wrapped with a steel rope insulating skin. The outer surface of the sheath layer is symmetrically provided with wear-resisting grooves. The invention also provides a productionprocess of the main wire conductive cloth which mainly uses ATO nano conductive liquid and fiber cloth as raw materials. The elliptical cable core, the insulating layer, the armored layer and the sheath layer are applied to construct a novel elliptical cable which has good tensile performance, good bending performance and certain anti-interference capability and has great practical value and popularization value.

Description

Technical field [0001] The invention relates to the technical field of towline cables, in particular to an elliptical tow cable for cranes. Background technique [0002] In the actual working conditions of bridge construction, because the crane is constantly moving, the cable needs to be able to tow, bend and rub at will. The cable for the crane must be able to withstand the needs of high tensile and high wear resistance. [0003] When a round cable is used to connect a bridge frame and a crane trolley, it is prone to entanglement, which affects the safety of use. Therefore, in the prior art, a flat cable is generally used as a crane towing cable. However, compared with round cables, flat cables have a smaller number of effective load wires, and flat cables occupy a larger area during construction, which easily affects the erection of the construction support; and the friction surface is large, which is easy to wear after long-term use , Needs to be improved. [0004] In addition, ...

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Problems solved by technology

[0003] When the round cable is used to connect the bridge frame and the lifting trolley, it is easy to be entangled, which affects the safety of use. Therefore, the existing technology generally uses flat cables as the towing cables of the crane.

However, compared with round cables, flat cables have fewer effective load lines, and flat cables occupy a larger area during construction, which is likely to affect the erection of construction supports; and the friction surface is larger, and it is easy to wear after long-term use , need to improve

[0004] In addition, in order to meet the needs of high tensile performance, some crane cables also place high-strength steel wires in the cables to strengthen the tension they bear and prolong the service life of the cables. A large number of steel wires will increase the load of the cables, and the steel wires will also affect the cables. the bend

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