Rotary traction device of medium voltage cable catenary crosslinking production line

Abstract

The invention provides a rotary traction device of a medium voltage cable catenary crosslinking production line. The device comprises an extruded machine, an upper obturator, a heating pipe, a suspension controller, a cooling pipe and a lower obturator. The rotary traction device also comprises an upper rotation tractor and a lower rotation tractor which have a same structure. The upper rotation tractor is arranged in front of the extruded machine. The lower rotation tractor is arranged behind the lower obturator. Each rotation tractor comprises a frame, a rotator and a rotation motor, wherein the rotator is connected to two ends of the frame through a bearing and the rotation motor is fixedly arranged on the frame. An outgoing line terminal of the rotator is installed with a rotary gear which is rotated concentrically. The rotation motor drives the rotary gear through a synchronization crawler belt. An incoming line terminal of the rotator is fixedly provided with a pair of guiding rollers. A pair of left conveyer and right conveyer which are centrosymmetric is arranged in the rotator. By using the device of the invention, a sagging problem of a cable insulation layer is effectively solved and an eccentricity of the cable insulation layer is reduced.

Description

technical field [0001] The invention relates to a medium-voltage cable catenary cross-linking production line, in particular to a rotary traction device for a medium-voltage cable catenary cross-linking production line. Background technique [0002] With the acceleration of my country's urbanization process and the continuous improvement of urban and rural people's living standards, the proportion of cable applications in power distribution networks in cities, especially large and medium-sized cities, is getting higher and higher. The gradual realization of the gradual realization, medium voltage 10 ~ 35KV cable product demand will also increase significantly, or at a rate of 8-10% compared to the previous month. [0003] At present, the equipment for producing medium-voltage power cables in China generally adopts the semi-catenary cross-linking production line. The production line includes extrusion machine, cross-linked pipe, cooling system, traction and take-up device, et...

AI Technical Summary

Problems solved by technology

However, in the process of producing cables with higher voltage levels in traditional traction equipment, the cable insulation layer will be subjected to the action of gravity after being extruded in a molten state and before cross-linking and solidification, resulting in "pear-shaped sagging", resulting in eccentricity of the cable insulation layer.

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