Scientific Journal of KubSAU

Improvement is offered for working bodies’ forms in devices for preparation of forages by methods of engineering geometry and computer graphics. That opens not only great opportunities for intensification, increase in productivity and efficiency of the technological processes, but also opens ways for creation of small-sized devices for their realization. Constructive study of geometry of working bodies surface, allows us to give wavy movement to particles of forage and impart them the movement with bigger power consumption. In such installations forage particles components, meeting walls of working body, change their direction and, meeting other portions of particles of forage components, mix up. From loading to unloading, throughout the installations working body length, flexible and strong waves of forage particles components movement inside the working body are born. The conducted pilot studies have shown that as a result of working bodies’ forms improvement of devices for preparation of forages by methods of descriptive geometry such devices can be implemented in a variety of industries

The article considers manufacturing techniques and assembling screw propellers of transport vehicles for rice and fish farms. The increase in technological capabilities, reliability and carrying capacity of transport vehicles is achieved by making the propeller screw, with the possibility of its rotation. We called such propellers screw propellers, since along their perimeter along the entire length, multiple-curved curved surfaces are formed in the form of helical grooves of various configurations, sizes and shapes. The spatial form of the screw propellers is made with screw surfaces in the form of helical grooves, which ensures that the transport machines for rice and fish farms are conveyed on land, on water, through swampy and difficult terrain at a sufficiently high speed. As a result of the work performed, not only the designs of screw propellers and their classification were proposed, in which there is a general principle that allows the development of still unknown structures of propellers, but also their manufacturing techniques. The design of screw propellers was performed using the KOMPAS-3D software package using descriptive geometry and engineering graphics

The article presents results of design development and calculation methodology for corn harvesters stalks shearing mechanism constructed as a module with a storage device. According to the number of engagement rows, these modules are mounted on the sweep frame of corn harvesters. All modules have the ability to accumulate energy, the rotation of saws in which at each time point does not depend on saws rotation in other modules and they are not connected with each other and with other mechanisms. Constructive execution of corn stalks shearing mechanism with accumulation device allows rapid separation of each module from the frame of the corn harvester in order to eliminate possible problems (change of saw or the entire module assembly). The methods of the energy storage calculation and electric motor power selection for each module are presented

The article demonstrates a possibility of creation of a corn harvester with a sweep frame mounted from individual modules. Such corn harvesters include modules for cutting stalks, snapping modules, conveyor modules for turning, stacking and feeding the stalks in the shredding unit, conveyor modules for supplying corncobs to the cleaning device placed on the sweep frame, leading and managing bridges, power unit, as well as conveyor belt for cobs and auger for discharging the crushed plant matter. The technique for calculating the grinding module drive was shown. The arrangement of the modules on the corn harvester sweep frame was demonstrated. Corn harvesting with the suggested module corn harvester allows not only reducing combine metal consumption and reducing corn ears injuring, but improving maintainability as well

The article presents innovative technologies and developed methods and devices for drying chicken manure. Ways of their optimization on the basis of screw aggregates and a calculation technique for introduction in production are offered. The results of a long-term research into the search for and development of innovative technologies for the construction of a methodology for calculating not only a device for drying chicken manure with subsequent introduction into production, but also a device for drying bulk materials of agricultural purpose are shown. An example of thermal calculation and selection of the parameters of a drying device is shown on the basis of screw aggregates

The article presents research results of a corn harvester device for corn cobs separation from the stalks, constructed as a separate picker. Each picker unit consists of three pairs of flat conveying belts arranged in parallel to vertical planes, namely an upper pair of conveying belts, the lower pair of conveying belts and fixed to corn harvester sweep frame, kinematically is not connected to other mechanisms and is provided with electric power with the possibility of adjusting the width of the aisle and the rapid replacement of the failed module with a spare unit in the field repairs. Picker module provides simultaneous rotation of corn ear on its axis and motion relative to the stem that reduces corn cobs defect and energy consumption for separating cob from stalk. The method of calculation of the basic design parameters of the picker module is developed