Name
Serga Georgy Vasilievich
Scholastic degree
•
Academic rank
professor
Honorary rank
—
Organization, job position
Kuban State Agrarian University
Web site url
—
—
Articles count: 18
The article presents the results of the research on modeling of working bodies of agricultural equipment by methods of engineering geometry and computer graphics. The design and the principle of operation of the equipment on the basis of working bodies in the form of screw drums is shown on the example of a device for the preparation of concentrated feed
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
Results of engineering and scientific search of
improvement of resource-saving machine technologies
of finishing and cleanup processing of cars details,
development of new camps and technologies are
presented. The possibility of low-frequency
fluctuations with big amplitude can be implemented
due to assembling flat or curvilinear elements on
external surfaces of the relative screw reel. The use of
computer modeling enabled us to obtain a relative
screw drum that provides not only giving movement to
loading masses with a big fluctuations amplitude, but
also compression of loading masses in the process of
their motion from loading to unloading. In such
machines increase in processing efficiency is reached
not only due to achievement of great movement
amplitudes values of the loading masses, but also at
the cost of compression of loading masses in
processing and intensity increase of their mixing. The
scheme of the machine for continuous processing with
mechanization of separation of details from working
environments particles is provided. Results of
researches of quality and surfaces micro hardness
change processed in the offered machines designs
show that details processing time makes 3-6 min
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
Analytical research results of contact forces of interaction of concentrated forages components’ particles in their movement in relative screw drums are presented. It is shown that contact forces – the most difficult forces by their nature; result from stochastic (probable) collision of bulks particles and in particular of concentrated forages components’ particles. Therefore the main objective of this modeling – to describe the stochastic phenomena of the so-called conditional contacts of particles for which some assumptions are accepted, for example, in forcing of mass of concentrated forages components’ particles by the walls of the rotating relative screw drum in the radial direction there will simultaneously arise contacts caused by geometry of a screw drum, i.e. the property of its walls is pressure transfer in relation to the mass of particles in the direction of the modeled movement. Schemes of engagement of concentrated forages components’ particles contacting in the relative screw drum, the probable schedule of sliding speeds values change in their consecutive contacting, their density distribution are demonstrated
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 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 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 presents results of research of rotary-screw
systems in relation to the creation of rotary kilns for
the annealing of-cuttings in the preparation of cement
clinker. Using the proposed design, in comparison
with known designs of similar purpose, it significantly
improves performance, reduces size and power consumption
through the use of rotary screw systems in
the form of screw rotors and drums made hollow with
sidewalls assembled from separate strips or plates of
different geometrical shapes with form inside the
screw breaks or smooth edges, screw surfaces and
screw grooves. It is shown that the housing of the rotary
kiln is expedient to produce helical surfaces whose
centers of curvature are located within the housing.
Using the proposed constructions rotary kiln during
the firing when preparing cement wedge can increase
the speed of rotation of the housing, furnaces 5-10
times due to changes in the rotary-screw systems increase
efficiency and reduce the size of furnaces
Original screw designs of buildings and columns are
offered. Frameworks of these buildings and columns
are the bearing elements and means of external and
internal decoration of buildings and constructions.
Originality of such buildings and columns frameworks
is ensured by the fact that their design is decorated on
the outer surface with broken or smooth screw edges
and screw surfaces. Versatility of the offered screw
columns trunks designs, as well as the possibility of
performance of their left or right screwing allows
reaching certain symmetry or their repeatability in the
form of harmonious alternation of the bearing trunks
of screw columns and spaces between them. Giving to
numerous sides of trunks of screw columns of a certain
invoice, or their coloring in different colors, will contribute
even more to their expressiveness and beauty.
Durability and vibration resistance (including seismic)
of such trunks of screw columns at the same volumes
of construction materials, in comparison with round
and rectangular trunks is higher