Research of Direction of Rope-Hydraulic Quarry Excavator Creation

The relevance of the paper is due to the need to improve the efficiency of mining excavators. The traditional scheme of a hydraulic excavator straight shovel is considered. Studies have shown that it is possible to increase the performance of an excavator by reducing the weight of working equipment and increasing the bucket capacity while retaining all the advantages of hydraulic excavators and without changing the initial weight of the entire machine, to reduce the weight of the developed scheme of working equipment with a cable-hydraulic drive. The transfer of hydraulic cylinders to the rotary platform of the excavator and the transfer from them of efforts through the cable system provided an exception to the bending moments on the boom and stick, which allows reducing the cross section of these elements and, accordingly, their mass. To expand the scope of hydraulic excavators, studies have been conducted on the creation of a control algorithm for the main mechanisms. Objective: To study the possibility of using a combined cable-hydraulic drive for mining excavators. Research methodology: mathematical modeling of the workflow. Results: A mathematical model, algorithm and program in algorithmic language have been developed for a career shovel with working equipment “direct shovel,” which allows determining the required graphs of the control law of the main drives for shaping the displacement speeds of the hydraulic cylinders ensuring the movement of the bucket along the desired trajectory.