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The structural forms of slide wire are diverse, but the general principle is as follows: mobile equipment needs to constantly change positions due to movement, and at each different position, the mobile equipment must be able to obtain power supply at any time, otherwise it cannot continue moving. At this point, the slide wire comes into being. We lay several conductors parallel along the running track of the mobile equipment and connect them to the power supply. On the mobile equipment, we also install current collectors that can draw power from the conductors. In this way, when the equipment moves, the current collector moves synchronously with the equipment and continuously obtains power from the conductors to supply the equipment, allowing it to continue moving. The device composed of these conductors and current collectors is called a slide wire.synchronously, and continuously obtains power from the conductors to supply the equipment, so that the equipment can continue moving. The device composed of these conductors and current collectors is called a slide wire.
Depending on the electrical equipment, slide wires come in various forms. For example, in subways, the steel rails on the side of the passage are used as slide wires, and in industrial and mining enterprises, bridge cranes use three angle steels as three-phase slide wires.
Slide wires 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 industry, home appliances, automobiles, clothing, tobacco and alcohol, amusement, and many other industries.
Safety slide wire is a new type of mobile power supply device. With its superior performance of insulation, safety, temperature resistance, vibration resistance, and energy saving, it has gradually replaced the old bare angle iron and copper bar slide wires. Safety slide wire consists of smooth flat T2 copper bars or aluminum profiles embedded with wear-resistant conductors, which are filled in engineering plastic tubes or trough plates, forming a power transmission conduit. There is an open slot at the bottom of the conduit to allow the current collector to run, and the high wear-resistant copper-based graphite brush of the current collector directs the power to the working electrical equipment. The use of safety slide wire brings safety to the workshop, but it also has disadvantages. Bridge cranes are prone to power failure during use, and sometimes sparks are generated inside the power transmission conduit. In severe cases, the slide wire may "explode" at a certain point, causing the current collector to be replaced too frequently and 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 springsrecover freely; (3) Deepen and reinforce the spring seat of 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 safety slide wire should have chamfers to ensure smooth transition of the current collector. At the same time, to ensure the normal use of safety slide wire, standardized operation by crane operators, regular maintenance by maintenance workers, and regular inspections are also essential.
2: Main Technical Parameters
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