Mine power-driven excavator with plane controllable mechanism

A mine power-driven excavator with a plane controllable mechanism comprises a machine frame, a movable arm lifting mechanism and a bucket unloading mechanism. A motor or a unit is used for providing power, and the movable arm lifting mechanism and the bucket unloading mechanism cooperate to finish mineral excavation and unloading operation. Compared with a traditional electric shovel, a link mechanism is used for lifting a movable arm to finish excavation operation, the angle of supporting rods is adjustable, mechanical efficiency can be greatly improved, and operation flexibility is improved; a drive device of the bucket unloading mechanism is placed at the rear half portion of the movable arm as a bucket balanced weight on the movable arm, and therefore drive moment of the movable arm can be effectively lowered. The link mechanism is used for replacing a transmission type electric shovel saddle type bearing and a part of gear racks and steel cables, maintenance cost is lowered, and reliability is greatly improved.