Abstract
The article considers and reasons the ways and possibilities to create the highly efficient constructions of trenching excavators that dig trenches of the defined profile by means of using bucketless rotors as soil excavating implements together with design of the discharge assembly improved construction. Study objective: to create a bucketless highly efficient rotary implement of the trenching excavator with two-stage discharge. Study object: continuously operation earthmoving machines. Research technique – analytical-experimental. One of the most important problems for the machine-building industry of Ukraine is the efficiency improvement of machines created in the country. Solving of this problem is required due to necessity to perform the increasing amount of earthworks in building and construction works. The cheapest way to perform lengthy soil excavations is to excavate them with trenching excavators. Increasing of their productivity is the one of the main directions to improve the efficiency of the earthworks mechanization. Increasing the efficiency of trenching excavators is possible by means bucketless rotary implement usage and by improving of the rotary discharge process. The study justifies and proves the scientific hypothesis about the possibility to use the force of the soil flow header pressure create by the soil that is being transported from the excavation for the bucketless rotary implements discharge. This allows by means of two-stage discharge of the implement to ensure the full clean-up and to improve the productivity of the soil excavation. The study analytically justifies the requirements for the main construction parameters of the bucketless rotor. Based on the obtained results the technical proposal is created for highly efficient construction of the bucketless rotary implement of the trenching excavator with two-stage discharge. KEYWORDS: BUCKETLESS ROTOR, SOIL, TWO-STAGE, DISCHARGE, DISCHARGE ASSEMBLY, TRENCH DIGGER
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