On the principles of operation of loading machine actuators
Abstract
The development of mechanization of coal and rock loading processes in preparatory excavations requires further improvement of loading machines and increasing the efficiency of their work. For this purpose, it is necessary to consider the validity of the principles of machine operation, to establish the expediency of the design of the working element and to outline the direction of their further development. As a criterion for comparing the principles of operation of the working element of loading machines, we take the trajectory of its movement and the direction of movement at the time of penetration into the pile of blasted material. The existing loading machines can therefore be subdivided into three groups: 1) the trajectory of movement of the working element coincides with the vertical plane, the penetration into the heap of material occurs from below; 2) the trajectory of movement is in a plane close to the horizontal plane; the moment of penetration and separation of material from the heap is characterized by lateral (flank) movement; 3) the trajectory of movement coincides with the vertical plane; penetration into the heap of material occurs from above.
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