| 摘要 |
FIELD: agriculture. ^ SUBSTANCE: direct-acting sowing machine is produced in two versions. In the first version sowing machine comprises main frame (10), sowing unit (20), having back part (22), connected to main frame (10) with the possibility of rolling and swinging. On lower surface of back part there are multiple protrusions (24) arranged for formation of furrows for seeds in field; receiver (26) for seeds, supported by receiver (32) for soil, device (28) for seeds unloading, installed on outlet end of receiver (26), and pipes (29) for unloading of seeds into furrows for seeds. Sowing machine also has covering unit (30), having receiver (32) for soil supported by main frame (10) and receiving soil for coverage of seeds sown into furrows, and pipes (34) for unloading of soil, which are connected to outlet of receiver (32) for soil and guiding soil unloaded from receiver (32) for soil, for coverage of sown seeds. Besides sowing machine has fertilising unit (40), which has front unit (42), supported by main frame (10) and arranged in front of back part (22). Besides on lower surface of back part (22) there are multiple protrusions (44) arranged for formation of furrows for the purpose of fertilisation in the field; receiver (46) for fertilisers, supported by main frame (10) by means of auxiliary frame (11), which is arranged below receiver (26) for seeds, device (48) for unloading of fertilisers, installed in outlet end of receiver (46) and pipe (49) for unloading of fertilisers. Sowing machine also has helical conveyor (50), which is installed in front of front unit (42). Besides helical conveyor (50) comprises two pairs of helical knives (54), which are formed accordingly on left part and right part of transverse shaft (52), when looking in longitudinal direction in the middle of transverse shaft (52) so that earth dug outside of wheel tracks (1c and 1d) is collected inside wheel tracks (1c and 1d). According pairs of helical knives (54a and 54b) are symmetrical to each other versus axes (L1 and L2) of symmetry and diverge down at the angle (). At the same time distance (dl), measured from axis (L1) of symmetry in left pair of helical knives (54a and 54b) to axis of (L2) symmetry of the right pair of helical knives (54a and 54b), is substantially equal to or more than distance (P) between the left and right wheels (1a and 1b) of tractor 1. The second version differs from the first one only by the fact that front unit (42) is replaced with front crossbeam (42a). Sowing machine helps to reduce loss of seeds and fertilisers in process of their loading into receivers. ^ EFFECT: sowing machine helps to more precisely execute operations of sowing, fertilising and coverage of seeds with soil. ^ 4 cl, 7 dwg |
