Abstract
The article presents the factors affecting the performance of excavators and dump trucks. The main dependences of the technical readiness coefficient of hydraulic excavators (Hitachi, Volvo, Komatsu PC, Liebherr) with a bucket capacity of 1...3.5 m3, in combination with articulated dump trucks Volvo, Bell, BelAZ (with a load capacity of 10-20 tons), quarry dump trucks BelAZ, Terex, Caterpillar, Komatsu (40.100 tons) are given. To increase the efficiency of the process of transporting rock mass at coal mines, the regularities of changes in the performance of quarry dump trucks have been studied. The obtained research results allow us to make a forecast assessment of the annual operational productivity of mining and transport equipment when planning the work of coal mining enterprises in the short term.
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