Dali Electric recommends
Single-pole combined sliding contact line HXPnR-H, HXPnR-H8, HXPnR-H thickened series single-pole sliding contact lines, three-phase, four-wire, and five-wire systems, are composed of H-shaped aluminum alloy main guide rail, pressed V-shaped stainless steel sliding strip, PVC insulation shell, external current collector, and suspension, fixing and other components. The single-pole combined sliding contact line products are widely used in occasions with large current, high frequency of use, fast running speed, and poor environment due to their novel design, reasonable structure, convenient maintenance, anti-corrosion and dust-proof performance, and safe use.
Single-pole combined sliding contact line accessories
JDC-H type, single-pole wire type sliding contact line is made of rare earth aluminum alloy, with large current carrying capacity and small voltage drop. At the aluminum conductive surface and brush friction part, wear-resistant stainless steel inserts are used to ensure mobile conductivity and effective service life. It is widely used for mobile power supply of various large-tonnage gantry cranes, bridge cranes, loading and unloading cranes, container cranes and other mechanical equipment.
Single-pole combined sliding contact line product introduction
HXPnR-H type protective safety sliding contact line, its conductive main body is an aluminum profile with an "H" cross-section, hence also called "H" type energy-saving sliding line device. Energy saving is relative to the sliding contact line with angle steel as the main body, and the loss of electrical energy during transmission is greatly reduced. The resistivity of aluminum is much lower than that of steel, and its specific gravity is small. Rolling aluminum into an "H" shape is to improve overall rigidity and strength on the basis of ensuring a certain conductive cross-sectional area. However, the surface hardness of aluminum is low and it is not wear-resistant. In order to make the aluminum base material meet the practicality as a conductive sliding contact line, the "H" shaped middle beam is made into an arched shape, and wear-resistant stainless steel profiles are embedded here according to the specified process. This "H" shaped stainless steel profile serves as the friction and conductive surface for the conductive block in the current collector. Its embedding process ensures the close combination of stainless steel and aluminum profile, so that the current introduced from the aluminum profile passes through the stainless steel body and the conductive block in the current collector in contact with it transmits the current out during friction contact, ensuring the continuity of current during the operation of the crane.
The conductive sliding line is protected as a whole by ABS plastic along the longitudinal direction of the sliding line, except for the lower opening where it contacts the current collector. Therefore, after installation, there is no exposed conductive part of the contact line, which brings great convenience to installation and maintenance. At the same time, the overall plastic shell protection (except for the opening) gives the sliding contact line the function of preventing dust accumulation and resisting rain, dew, ice, and snow. The connection between guide rails is a special rail connector that allows the guide rail and plastic shell to extend into it together, and its connection end is also safe and reliable.
Current collector: It is a spring-supported type, which can be pushed in only at the lower part of the sliding contact line, but it must be synchronized with the tractor, and the tension of the tension spring should be appropriate to avoid increasing brush wear. The tractor and current collector are synchronized and can be fixed on moving equipment such as cranes by bolts or welding, and appropriately ensure that the current collector is not subjected to torque during operation.
Selection instructions
When selecting this sliding line device, users should consider the total capacity of electrical equipment on the same span of sliding contact line and the working system of the equipment. The above current carrying capacity curve diagram is for user reference. When selecting the current collector, the capacity of the electrical equipment should be matched with the current collector. When the single-pole capacity of the current collector is insufficient, a double-pole current collector can be used.
Installation form schematic diagram
Note: This device generally adopts front installation and side installation methods. Multiple rows and curved tracks are allowed (the minimum radius of the curve should not be less than 1.5m). The dimensions in parentheses are suitable for 200-300A guide rails. The spacing a between L1, L2, L3, and PE is 90mm
Note: The above information and technical parameters are compiled and released by Yangzhou Dali Electric Co., Ltd.
