Scientific Journal of KubSAU

The article presents results of the study of devices for preparation of feed based on the relative helical drums. In addition, we have created a method of calculation of the drive, including motor power. We have given a calculation sheet for relative helical drums of types of 5.1 and 3.1, as well as typical schemes of devices for preparation of feed (feed-making machines) composed of hollow equilateral triangular of hollow tetrahedrons pyramids and hollow octahedra. The created method of calculation of the drive was tested in the calculation of power consumption of feed-making machines based on spiral reels of 5.1 type mounted using hollow tetrahedrons and spiral reels of 3.1 type, assembled from hollow octahedra. It is shown that in the calculation of the actuator, we should not only take into account the mass loading of feed components, the relative weight of the screw drum assembled with wheels, for a symmetrical load location, but also a lot of download components of feeds, arranged in a spiral relative the drum asymmetrically to the axis of rotation. Thus, summing up the power of the electric motor, required for relative rotation of the screw drum symmetrically loaded and also under asymmetric load we define the motor power for the device for preparation of feed, or feed-making machine

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

It is shown that for preparation of the concentrated forages it is expedient to use the vibration principle of mixing with use of big amplitudes of movements of components of forages from 10 to 500 mm. and more which can be done when using relative screw drums at the expense of the flat or curvilinear elements which are discretely located on perimeter of a relative screw drum placed on perimeter at an angle not only to an axis of rotation of a relative screw drum, but also to each other, the difficult spatial movement with a big amplitude of movements from 10 to 500 mm is reported to particles of components of forages. Possibility of creation of resource-saving technologies and the equipment for mixing of components of forages is shown. Earlier it was limited to low intensity of the proceeding processes and localization in a limited zone, and also small sizes of amplitudes of fluctuations in known designs. In the offered designs of the equipment for mixing of components of forages the movement of particles of components of forages is provided with an original design of working bodies – the relative screw drums making only a rotary motion round own axis. The difficult spatial movement with a big amplitude from 10 to 500 mm and more, is reported to particles of components of forages by walls of a relative screw drum of various standard sizes and configurations which becomes complicated screw lines and screw surfaces directed towards to each other on perimeter of a screw drum therefore process duration ranging from 1,5 min. till 1.75 min. is sufficient for high-quality mixing of particles of components of forages in a relative screw drum

The article has revealed the contradiction between the way of technological impact and the means of implementation of technological transport in existing processes of feed preparation. There has been shown the possibility of eliminating this contradiction by menus of completely new technological equipment on the basis of relative screw drums and the opportunity to improve their productivity. There are no exciters in the offered design of vibrating machines. There is no need for them because the move mend of mass loading particles is provided by the original constructions of relative screw drums committing a rotary motion around its own axis. For implementing of feed preparation process the geometry of the relative screw drum and its dynamism must be individual: the shape, spatial orientation, the impact of forces providing feed components particles simultaneously with rotational-translational and vibrational motion. In the result, the continuously running through the inner cavity of the relative screw drum particles of feed components perform rotational-translational movements with super imposed vibrations inside this drum, due to this process the particles of feed components are mixed intensively