ENERGY INTENSITY STUDY FOR SOIL TRANSPORTATION BY INERTIALROTOR
In recent years, the Republic of Kazakhstan has seen a significant development of scientific research and design developments in the field of earth-moving equipment. This rise is based on extensive and deep research of Kazakh scientists. The scientific results of their research gave a strong impetus to the emergence and creation of new promising directions in the development of excavation equipment.One of these new types of machines is excavation transport machines with an inertial rotor of lower unloading.Research, creation and testing of excavation-transport machines with inertial rotor of lower unloading showed their high productivity, low energy intensity and low dynamic loads on soils of different hardness.Due to the novelty of the design of these machines, many issues have not yet been sufficientlystudied. One of the important advantages of the inertial discharge rotor is the absence of buckets replaced with two rows of cutting elements in the form of knives, and the lower unloading of the soil, which eliminates lifting it to the upper position, ashappens in existing gravitational and other rotors. Such a structure and a soil unloading process allow a significant increase in productivity and a decrease in energy consumption for soil transportation due to an increase in the height of the knives.In the present work, the authors present the results of studies of high-speed digging and propose a method for determining the average energy consumption for the process of transporting soil with an inertial rotor of lower unloading.The work shows a graph ofthe dependence of specific energy consumption and productivity on the rotor rotation speed at constant chip sizes (H = 1150 mm, ao= 200 mm, b = 31 mm).The analysis conducted by the authors also makes it possible to recommend the proposed excavation and transportation equipment with an inertial rotor as a machine that performs a significant amount of excavation and soil displacement work, as the most promising and economically profitable for introduction into production and use in road construction.