DETERMINATION OF POWER APPROXIMATION APPROXIMATE TO THE COMBINED HIGH-PERFORMANCE ELEMENT WITH RELATED DIAGNOSIS

The article is timed to the investigation of a disk type pneumatic apparatus with centralized seed sowing. The design feature of this apparatus is that the seed cells are placed concentrically on the bottom of the disc, which has a tilted axis of rotation. As a result, the value of the force of suction of the seed to the cell at the extreme points lying on the horizontal diameter of the disk during its movement from the upper position to the bottom and vice versa, has different meanings. The article presents a fragment of a disk with a cell and placed in it by a seed at the moment of its movement from the upper position to the lower one.In this case, the center of the cell and the seed coincide and lie on a straight line which extends along the bottom surface of the disk. Through the joint center of the seed and the cell, the XYZ coordinate system was performed and the direction of the forces was shown. The analysis of the forces acting on the seed indicates that during the rotation of the seed element the load on the rear pushing wall of the cell increases dramatically, and the seed is pressed against the wall of the cell, while the front end of the seed may be unloaded. As a result, there is not a stable position and it can escape from the closet. To prevent this, the seed is kept in the cells due to the suction force. In order to determine the value of the force of suction of the seed to the cell, moving from the upper position to the bottom, in the article the scheme of forces acting on the seed at that moment is considered and the condition of equilibrium of these forces is drawn up. On the basis of this condition, an analytical dependence of the seed suction force on a seed cell with a tilted axis of rotation is obtained, as from the structural and technological parameters (γ, α, R, ω, h) of the seed element, and the physical and mechanical properties (m, r, l, f, ε, ρ) of the seed itself. The obtained dependence makes it possible to determine the values of the force of suction of seeds to the cells intended for servicing the left-hand group of seeders of the seeders