Portal crane current collector

Abstract

The invention provides a portal crane current collector, which is characterized by comprising an insulated base, a telescopic bar, a nylon insulated rod, a traveling pulley and a pulley base, wherein the insulated base is connected with the lower end of the telescopic bar; the lower end of the nylon insulated rod is connected with the upper end of the telescopic bar, and the upper end of the nylon insulated rod is connected with the pulley base; the pulley base is U-shaped, and the travelling pulley is connected in the pulley base via a bearing and is wound with slide wires; the end socket of the bearing is connected with a cable via a copper pig tail; the telescopic bar is used for adjusting the telescopic range of the current collector by means of a pressure spring and a round steel; the travelling pulley replaces a common current collector which depends on a carbon brush to travel; the bearing connecting the travelling pulley with the pulley base is connected with the cable via the copper pig tail so as to directly feedback electricity to the main motor of the portal crane, thus integrating the entire portal crane with the current collector into a whole; and the nylon insulated rod and the insulated base form two insulated barriers, thus preventing circuits from shorted faults and improving safety performance.

Description

technical field [0001] The invention relates to the technical field of electrical appliances, in particular to an electrical device suitable for traveling by a gantry crane. Background technique [0002] The current collector, also known as the receiver, is an electrical device suitable for the traveling of the gantry crane (the main electrical device connecting the gantry crane and the slideway). As the project enters the peak period of construction, the gantry crane is used too frequently, and the frequency of collector damage is high. The reasons are: 1. The connection between the collector and the sliding wire is through the carbon brush as a bridge, and the carbon brush wears quickly (replace once a month. ); 2. The range of expansion and contraction of the collector is small and cannot effectively alleviate the wear of the carbon brush; 3. The collector has only one insulation barrier, which is likely to cause a short circuit fault. For this reason, it is necessary to...

AI Technical Summary

Problems solved by technology

As the project enters the peak period of construction, the gantry crane is used too frequently, and the frequency of collector damage is high. The reasons are: 1. The connection between the collector and the sliding wire is through the carbon brush as a bridge, and the carbon brush wears quickly (replace once a month. ); 2. The collector has a small telescopic range and cannot effectively alleviate the wear of the carbon brush; 3. The collector has only one insulation barrier, which is likely to cause a short circuit fault

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