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Sliding contact lines are mainly used for various lifting and transport machinery, production lines, and other facilities and places that require mobile power supply, such as cranes, loading bridges, electric hoists, three-dimensional warehouses, amusement equipment, air conditioning testing lines, etc. They are widely applied in many industries including lifting and transport, electric power, shipbuilding,ports, metallurgy, mining, water plants, environmental protection, chemical, household appliances, automobiles, clothing, tobacco and alcohol, amusement, and many other industries.
The safety sliding contact line is a new type of mobile power supply device. With its superior performance such as insulation, safety, temperature resistance, vibration resistance, and energy saving, it has gradually replaced the old exposed angle iron and copper bar sliding contact lines. The safety sliding contact line uses smooth and flat T2 copper bars embedded in engineering plastic tubes or trough plates, or aluminum profiles with wear-resistant conductors embedded, as the current-carrying conductors, combined to form a power transmission conduit. There is an open slot at the bottom of the conduit to facilitate the operation of the current collector, and the high wear-resistant copper-based graphite brush of the current collector conducts the electric power to the working electrical equipment. The use of safety sliding contact lines brings safety to the workshop, but it also has disadvantages. Bridge cranes are prone to power failure during use, sometimes sparks are generated in the power transmission conduit, and in severe cases, the sliding contact line may "explode" at a certain point, causing the current collector to be replaced too frequently, affecting production. To this end, the following improvements have been made: (1) Increase the chamfer of the current collector brush and polish it smooth; (2) Increase the strength and elasticity of the springs between two opposite brushes of the current collector to ensure the springs canrecover freely; (3) Deepen and reinforce the spring seat in the current collector to ensure that the recovery spring of the brush is not easy to "displace" during work; (4) The connecting blocks at the joints of two sections of the safety sliding contact line should have chamfers to ensure smooth transition of the current collector. At the same time, to ensure the normal use of the safety sliding contact line, standardized operation by crane operators, regular maintenance by maintenance workers, and regular inspections are also essential.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
