All-electric mine car transport system

Abstract

Provided is an all-electric mine car transport system. Utility poles are buried on a special lane; a medium-voltage direct-current contact line system is set up on the utility poles; an electric minecar controller is wirelessly connected with a monitor center; a driver of the monitor center sends out a control command to control contact or separation between a carbon brush slider on a pantographof a dual-power-mode power supply portion and the medium-voltage direct-current contact line system, so that the medium-voltage direct-current contact line system can directly power an electric mine car or powers the electric mine car through a vehicle-mounted battery. The dual power modes of medium-voltage direct-current contact line system and the battery are employed herein to power the electric mine car; flexibility of a traditional mine car is maintained, and long-range endurance and nonstop charging can also be achieved; electric energy generated by regenerative braking of a brake of theelectric mine car generated during downhill braking can be fed back to a power grid for other vehicles to use; high voltage of contact line system is employed, so that each pair of contact lines canbear more electric mine cars, and longer lines can be erected.

Description

technical field [0001] The invention belongs to the technical field of electric transmission mine vehicles, and in particular relates to a pure electric mine vehicle transportation system. Background technique [0002] Current mining vehicles mainly include "diesel engine + transmission" as the power dump type mining vehicle and "diesel engine + generator + frequency converter + electric wheel" as the power of the electric transmission electric wheel mining vehicle two kinds. Since heavy-duty mining vehicles are mainly used for the transportation of stripped earthwork and ore in large-scale open-pit mines, the roads they run not only have many curves and steep slopes, but also have poor road surfaces, which results in very high fuel consumption for heavy-duty mining vehicles. One 100t The annual oil cost of the mine trucks is as high as more than one million yuan; in addition, as the depth and diameter of the mine pit increase, the exhaust of the engine will cause serious ai...

AI Technical Summary

Problems solved by technology

Although the vehicle-mounted cable winch can be used to introduce power from the external power plug, this method is feasible for relatively fixed working positions, but it is not suitable for open-pit mines with high mobility requirements, and frequent plugging and unplugging of the power supply The plug is not only troublesome, but also has potential safety hazards; because the transportation of the mine adopts a shift system, people stop and stop the car, so when working, there are not only more mine cars, but also more mine car drivers. A large number of mine car drivers and maintenance personnel live and work all year round. Working in a mining area where air lunch is serious, there is great economic and moral pressure on the mine owner and the government. In view of the above problems, it is necessary to make improvements

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