Manufacturing method of axle counting cable for urban rail transit

Abstract

An axle-counting cable for urban rail transit and a manufacturing method for the axle-counting cable. The axle-counting cable for urban rail transit comprises insulated single wires (1), a cabling cable core (4), a polyester strip (5), a heat insulation layer (6), an aluminium sheath (7), an inner sheath (8), a double steel strip armour layer (9) and an outer sheath (10). Two insulated single wires (1) having different colours are twisted to form a paired set, at least two paired sets are stranded to make up the cabling cable core (4), the polyester strip (5) is wrapped around the outside of the cabling cable core, and the heat insulation layer (6) is extruded on the outside of the polyester strip. An aluminium strip is wrapped longitudinally on the outside of the heat insulation layer and the aluminium sheath (7) is formed via argon arc welding, the inner sheath (8) is extruded on the outside of the aluminium sheath, two layers of a highly magnetically conductive steel strip are wrapped with a gap around the outside of the inner sheath, forming the double steel strip armour layer (9), and the outer sheath (10) is extruded on the outside of the double steel strip armour layer. The axle-counting cable for urban rail transit acts as an important cable product in a rail transit axle-counting system, and has the features of low attenuation, strong anti-interference capabilities and excellent shielding performance.

Description

technical field

[0001] The invention relates to a manufacturing method of an axle counting cable for urban rail transit, which is an important cable product in the axle counting system of urban rail transit, and has small attenuation, strong anti-interference ability, and shielding performance. Excellent features. Provide guarantee for the safe transmission of axle counting information. Whether the axle counting information can be safely and correctly transmitted to the computer is crucial to determine the occupation and vacancy of the track section. The quality of cable products in the axle counting system not only ensures the stable and normal operation of the axle counting system but also ensures the safety of trains in rail transit. Background technique

[0002] Nowadays, all countries in the world generally believe that urban rail transit is the fundamental solution to traffic travel problems. Urban rail transit has the advantages of safety, high efficiency and saving...

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