Design And Experimental Study Of Tracked Structure System For Tracked Electric Vehicles

As the standard of living is gradually improving, the requirements of people’s material are also increasing. Vechiles as one of the main means of transport, have greatly influenced and changed people’s lives. On one hand, vehicles make them easy to travel for people, on the other hand, emissions generated by car has become one of the major sources of urban air pollution. The smoke pollution in urban has gradually changed from coal smoke into coal smoke and automobile exhaust composite pollution, increased the difficulty of air pollution control. Meanwhile, energy shortages, combined with the financial crisis on the automotive markets, compared with foreign competitors, China’s automobile industry as a weak power. Only through the development of a new generation of cars and industrialization, to promote the development of China’s automobile industry by leaps and bounds. Therefore, the development of electric vehicles is conducive to China’s automobile industrial structure adjustment, improve industrial competition and reducing the gap with other countries. As a new technology, magnetic levitation has great advantages in transportation. In this connection, to combine magnetic levitation and electric cars technology, and develop a new magnetic levitation track electric vehicles would have a good future prospects and development.This paper introduces the implementation principle of tracked electric vehicles, emphasizes selection of linear motor and also design and experimental study of the secondary structure of tracked structure system for track electric vehicles, and designs the overall structure of tracked system. The electric vehicles utilize linear motor as the power source and the thrust features generated through the linear motor primary to the secondary, reasonable choose the type of motor, designed of aluminum and iron composite sub and wound electromagnetic coil such as a total ten experimental program, and analyzed the feasibility of the experiment and made thrust test. The whole tracked structure system was made of vulcanized bonding by power wound electromagnetic coil and six millimeter thick aluminum composite sub, wear rubber, tensile steel wire. Wear rubber is divided into three layers. The most inner layer and the second outer layer use thin rubber layer sealed by the power wound electromagnetic coil and thick aluminum composite sub, the outer rubber section have rule cavity which can reduce vibration when the vehicles are running, their direction was vertical to the track progress or was chevron. Wire bonding vulcanized rubber layer, increasing the strength of tracked.When the electric vehcile needs work, three-phase symmetrical current accesses three-phase windings of the primary, the primary will have a gap of the magnetic field, the secondary cuts line under the wave magnetic field, induces electromotive force and produce the current, the interactions of current and the air gap magnetic field can generate electromagnetic force. As the primary is fixed to the vehicles body, then the primary and secondary run a straight line along the movement direction of the magnetic field. In the experiment the secondary sub was made as a sub-track, it can directly contact to the ground, but also bear the entire body weight, also have a certain positive pressure. As the role of surface friction, tracked continuously forward along the ground , so the design purpose of the experiment what is magnetic suspend electric vehicles moving come true, and using programmable logic controller and inverter vehicles can achieve a series of functions such as forward, steering and reversing.This track-type linear motor-driven electric vehicles almost no inertia, and the forward movement only to overcome the weight of the vehicle itself, so that electric vehicles have a good performance on acceleration , deceleration, speed, environmental, and a low gravity center, stable movement. As using track plate structure, vehicles have low demand to the road, and strong ability through the road, reduce infrastructure investment of the road. The vehicles have a most prominent advantage of safe property, not easy to overthrow, conducive to the safety of drivers and passengers.