Precision pneumatic planter semitrailer

摘要

The invention relates to the field of agricultural engineering, in particular to the universal pneumatic seeders semi-trailer intended for the drill seeding with distance between rows 187,5 mm grains, cruciferous vegetables; grasses and grass mixtures with simultaneous application of the starting dose of fertilizer. The technical result consists in the possibility of sowing seeds, not only in the soil treated by traditional technology, but also in the raw, with crop residues from previous crops planted and harvested, the so-called stubble. The drill comprises a frame, a hopper with two compartments for the two types of materials sown, seeding machines, fan-driven, hydraulic system, copying the working bodies representing unit. The unit is mounted on the frame via a parallelogram sprung suspension consists of a spring-loaded sowing coulters and press wheels. The technical result is achieved in that the seed coulter is the anchor chisel with carbide plate mounted thereon. Spring-loaded packer roller and coulter mounted on a bracket with rectangular grooves, made on the contour, which engages with the spring-loaded part of L-shaped handle, which is connected with the cam. With cam depth adjustment is carried out seeding. Behind the anchor on the bracket, rigidly fixed metal tube vas deferens. Suspension spring-loaded packer roller is made one-sided. Coulters mounted on the main frame and the side in three rows. Pneumatic seeding system is provided with a tee taps which are at 30 °, and ejectors structurally executed rotated by 15 ° relative to the sowing machine.