Abstract
The pantograph catenary system plays an important role in the power performance of electric mining vehicles. A pantograph catenary system combining both a pantograph and a catenary is one of the most promising solutions. As a case study, this paper discusses the dynamic performance and the stable current collection of a pantograph catenary system for a 14 ton underground overhead wire electrical actuated load, haul, dump machine (LHD). First, based on the optimized finite element simulation process, finite element models of the pantograph system and the catenary system are established. Second, the motion equation of the catenary is improved, and the finite element model of the pantograph catenary system is established. Finally, a dynamic simulation experiment is performed to determine the dynamic performance of the pantograph catenary system. The results show that when the radius of the contact wire is set to 0.00564 m and the tension of contact wire is set to 30 KN, the current collection indexes of the pantograph catenary system meet the requirements of stable current collection and are superior to the simulation results of related references. Therefore, the validity of the finite element model is verified; thus, the pantograph catenary system can stably charge and supply energy for the trolley wire overhead electrically actuated LHD and ensure sufficient power.
Highlights
With the rapid development of society and the economy, the demand for mineral resources has increased sharply
Trolley wire overhead electrically actuated LHDs obtain their current through direct contact between the pantograph head slide plate and the contact wire in the pantograph catenary system, which provides the power
Changing the contact wire section radius has a key influence on what is needed for sufficient power with the stable current collection of the pantograph catenary system
Summary
With the rapid development of society and the economy, the demand for mineral resources has increased sharply. The finite element model of the pantograph system of the trolley wire overhead electrically actuated LHD is established through contact. Catenary system of the trolley wire overhead electrically actuated LHD is established through contact. Element model of the pantograph catenary system of the trolley wire overhead electrically actuated. In this study, according to the actual design parameters, the finite element models of the pantograph and the catenary were established using advanced.
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