Ω-type Busbar Trolley Technical Parameters
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Mobile equipment, due to movement, needs to constantly change positions. At each different position, the mobile equipment must be able to obtain power supply at any time, otherwise it cannot continue moving. This is where the busbar trolley comes into play. Several conductors are laid parallel along the running track of the mobile equipment and connected to the power supply. On the moving equipment, a current collector is installed that can draw power from the conductors. Thus, when the equipment moves, the current collector moves synchronously with the equipment, continuously drawing power from the conductors to supply the equipment, allowing it to continue moving. The device composed of these conductors and the current collector is called a busbar trolley.
The power supply busbar trolley device consists of three main components: the sheath, the conductor, and the current collector, along with some auxiliary components.
1. Sheath: It is a semi-enclosed tubular component and the main part of the busbar trolley. Inside, 3-16 bare guide rails can be embedded as power supply conductors as needed. The guide rails are insulated from each other to ensure the safety of power supply and effectively prevent electric shock accidents for maintenance personnel during live maintenance. The length of each duct produced by the manufacturer varies, and they can be connected to any required length. Ordinary ducts are made in a straight line, but can also be made into arc shapes or other special shapes according to specific requirements.
2. Conductor: The main material is copper. According to its cross-sectional area, common sizes are 10 square millimeters, 16 square millimeters, and 25 square millimeters.
3. Current collector: It is a set of brush holders that run inside the duct, driven by a fork (or traction chain, etc.) installed on the electrical mechanism (such as a crane, trolley, electric hoist, etc.), causing it to move synchronously with the electrical mechanism. It transmits the electrical energy from the guide rails and brushes to the motor or other control components. The number of poles of the current collector brushes ranges from 3 to 16, corresponding to the number of poles of the guide rails in the duct.
(II) Product Features
1. Safety: The housing of the power supply busbar trolley is made of engineering plastic with high insulation performance. The protection level of the housing can reach IP13 or IP55 as needed, providing protection against rain, snow, ice, and contact with hanging objects. The product withstands various environmental conditions. It has good insulation performance and poses no harm to maintenance personnel who touch the outside of the power transmission duct.
2. Reliability: The power transmission guide rails have excellent electrical conductivity, fast heat dissipation, high current density, low impedance, and low line loss. The brushes are made of metal graphite material with high electrical conductivity and high wear resistance. The current collector moves flexibly, has good directional performance, and effectively controls contact arcs and series arcs.
3. Economy: The power supply busbar trolley device has a simple structure, using copper bars with high current density, low resistivity, and low voltage loss as the main conductive body. It can save about 6% of electricity. It adopts the design of replacing steel with plastic and copper with plastic, which is novel. It requires no additional insulation structure, no compensation wires, and is installed on the same side as the crane control room, saving installation materials and costs. Its overall cost is roughly the same as that of bare steel sliding lines.
4. Convenience: The power supply busbar trolley device integrates multiple busbars into one duct, making assembly simple. Its fixed brackets, connecting clamps, and suspension devices are supplied as universal parts, making installation, disassembly, adjustment, and maintenance very convenient.
Note: The above information and technical parameters are compiled and released by Yangzhou DARUI Electric Co., Ltd.
