Мачнев Алексей Валентинович (RU),Ларюшин Николай Петрович (RU),Мачнев Валентин Андреевич (RU),Хорев Павел Николаевич (RU),Шумаев Василий Викторович (RU),Хорев Александр Николаевич (RU)
申请号：
RU2014105988/13
公开号：
RU00144094U1
申请日:
2014.02.18
申请国别(地区):
RU
年份:
2014
代理人:
摘要：
The invention relates to the agricultural industry, in particular to the coil sowing unit sowing machines and systems. Seed sowing apparatus comprises a box with a socket mounted on the spool shaft with grooved guide seeds into the bottom of the seed box, a box with a rib and the valve. The coil is designed as a worm ravnohodovogo whose coil surface is pravozahodnoy helical surface formed by moving the curvilinear generatrix on two rails - helix and the main cylinder axis. Angle lifting loop line on a pitch cylinder is within 40 ... γ = 50 deg., And a worm unit is m = 4,2 mm. The worm is made multistart, and includes a working and non-working side coil surface depression forming a coil groove and the top of the coil, the coil thickness is equal to the width of the depression at the pitch circle. Axial section of the worm winding has a concave curved profile and top coil scan line on the cylindrical surface is a second order curve . Allen coil groove profile has an asymmetrical profile formed by curvilinear trapezium, whose area is limited to the graph of lines 1 and y = 0, x = 1,aF, x 2 = b F where Fa - initial coordinate of the groove, b F - the width of the groove. In the cavity of each groove coil located protrusion formed equidistantly line coil vertices pravozahodnaya helical surface which in cross section has the form of a hypocycloid (Here, R - the radius of the fixed circle, r - the radius of the rolling circle, φ - turning angle) included between the pitch circle and the notch cavity coil. Angular spacing protrusion vertex is relatively coil τ TSA - 15 deg. Bleed valve is formed symmetrically about the longitudinal axis of the coil and the inner surface of the outer profile of equidistant sockets coil. Planting unit can improve the uniformity of distribution of seeds for screening area, reduce the trauma the seeds to increase germination of seeds, crop yields, and reduce production costs.Полезная модель относится к сельскохозяйственному машиностроению, в ча
