Pneumatic grain seeders with a central dosing system have high productivity due to the presence of a large centralized hopper, as well as a large width of capture. However, they cannot always ensure an even distribution of seeds between coulters. The article performs an analysis of designs of sowing machines. The influence of the angle of rotation of the air mixture in the tap on the drop in seed speed is studied. We also obtained the equation of seed velocity at turns of pneumatic lines of pneumatic seeders. Branches were analytically studied, the outer walls of which were described by various equations in a rectangular coordinate system. Optimal are bends, the contour of the outer wall of which is outlined by the curves of the power function. Analysis of such curves indicates that the optimal curve that provides the smallest meeting angles is a cubic parabola. Based on the considered analytical materials, we found that when developing a pneumatic scheme for transporting seeds of grain crops to the distributor, it is necessary to avoid using taps with horizontal to vertical and from vertical to horizontal
The article is devoted to the residual on-tolerances in the coating, which are formed with the gradual application of the specific working load and temperature to some of the final values
The article describes the modeling process of the
heating system operation of a livestock-breeding
complex. It presents graphs reflecting the influence of
technological parameters of heat supply system of
cattle-breeding complex with a catalytic combustion
device on the parameters of energy efficiency of the
system and the parameters characterizing the stability
of the temperature conditions in the livestock sector
The issue of resource saving in the process of preparation of feed mixtures of multifunctional mobile units on livestock operations shows the need for further qualitative research in the preparation of feed for feeding with the goal of full realization of the genetic potential of animals. Modern cars often do not meet the above requirements that require new solutions. The theoretical study of grinding process feed stem proposed biplane segments allow you to define conditions and to identify the main factors affecting the studied process, and subsequently reduce their impact on the operation of the machine as a whole
The mathematical model presented in this article allows you to choose rational values and ranges of design and technological parameters of body separation, as well as their further optimization
A simulation model of road train movement has been developed. The model includes a tractor of a "KrAZ" class and a trailer for timber transport. The effect of the control algorithm on the suspension stability of the train at the corners has been studied
The article presents a constructive-technological
scheme of leaf separating apparatus for harvesting tobacco
leaves. We have performed a theoretical analysis
of the process of separating tobacco leaves from the
stalk. The dependences characterizing the trajectory,
speed and acceleration of an arbitrary point of the cutting
edge of the drum were obtained
The peculiarities of tomato cultivation and processing grown in Dagestan are considered. The layout of multistory electric dryer allowing drying prepared and sliced tomatoes in an inert gas is described
In the article, questions of a substantiation and calculation of the basic constructive-regime parameters of the combined arable unit as a part of a plough and rotational working body of active action with a horizontal axis of rotation are considered
This article presents a theoretical basis for the interaction
of the foot with a stem as it moves in line with of
corncob separating apparatus