| 摘要 |
Pneumatic sowing machine with exact seed dropwise which works on Venturies principle. A new design solution in agricultural industry. The machine serves for planting of seeds into wide-row rows. It provides precise planting of seeds under all working conditions, without damage to seeds; reliable and safe operation with easy and simple connection to the tractor unit; inexpensive production and easy maintenance. The construction design of the planting machine consists of the following: on the support beam (1) supports are mounted (3) together with the housing with cardan shaft (8) and the transmission belt (9), a compressor (11), which are then fixed to the drive wheels (4) with shafts (13) (17) and chain belts (14) (16), then the already prepared planting units (5) are mounted on the supports (22) and fixed. The planting machine functions in the manner that the supports (3) are attached to the tractor unit, and the housing with the cardan shaft (8) is attached to the outlet shaft of the tractor unit and the compressed air. With the start-up of the tractor and the planting machine, begins the process of planting in the manner that through the wheels (4) chain (15), (20), (48) and the chain belts (14), (16), (19), (21), (49) the transmission is transmitted up to the synchronized planting (23) and placing (24) units, where the separation and pick up of seeds is performed, with a plough simultaneously entering the ground to the planting depth. In the planting unit (23) the compressed air goes into the assembly of two-position valves (52) through which it is conducted into an assembly of vacuum suction nozzles (56) which pick up the seeds (61) and drop it into the three tact placing unit (24), From the placing unit (24) the seeds (61) are planted in the ground.
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