SU917746A1 - Universal pneumatic sower - Google Patents

Description

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The invention relates to the field of agricultural engineering, in particular, to sowing machines.

Pneumatic seed drills are known, including a bunker with a distribution system connected to an air supply source, and a regulator.

A disadvantage of the known pneumatic forks is the complexity of the design.

A well-known / also universal pneumatic splitter comprising a hopper with a seed distribution system; - communicated with an air supply source and a receiver, a coulter unit connected by means of spring-loaded rods with a shaft of lift, and XBDO, out wheels 2.

The disadvantages of the well-known pneumatic seeds are the poor quality of seeding, as well as the complexity of the design.

The disadvantages are due to the fact that during the turns of the mud at the end of the rut, when raising the coulter group, due to. the inertia of the fan and the air environment occurs over the seed, which has a significant impact on the quality of sowing, i.e. the uniform distribution of seeds is in order.

The complexity of the design due to the presence of a source of excess

10: the pressure associated with the tractor's VON or its hydraulic system, air ducts of various lengths.

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i The aim of the invention is to improve the quality of seeding and simplify the design. f

Claims (2)

The goal is achieved by the fact that in the proposed plant the air injection source is made in the form of a vane pump, which is kinematically connected to the spring water wheel, while in the receiver there is a valve and damper, which is connected by a lever system to the lifting shaft of the coulter group. H FIG. 1 shows the proposed universal pneumatic seed; FIG. 2 is a section A-A in FIG. The universal pneumatic seedbed includes a seed bin 1 with a seed distribution system through seven wires, which; made in the form of a concave curvilinear bottom 2 bunkers tv equipped with a series of profiled mutually parallel grooves 3- The latter in the central part are partially covered by the sidewall lying (the bunker t, while over their open part is covered with an overlapping e covered part 5, designed to set a given seeding rate. The grooves are 3 “4” with the end of 6 co & prices with the wires of 7 sem wires 8 and the other end 9 with the receiver Q, which is connected with the air duct 11 12, executed In the form of a lamellar coca, kinematically connected with a 13-way sprocket wheel. To eliminate overseeding during rotation of the receiver 10, a valve was installed in the receiver 10, which connected it to the atmosphere, and the valve 15, made with the possibility of blocking its cross section, wherein the flap 15 is connected by a lever system 16 to the lifting shaft 17 of the synchronic group 18. The universal pneumatic separator operates by the following cut. When the seed moves, rotation from the impeller 13 is transmitted to the rotor of the vane pump 12, which, through the duct 11, forces air into the receiver TO. From receiver 10, air flows into the distribution system through the grooves 3, seizing the seeds in their open part and transporting them to the receiving ports 7 and 8 wires and then under the force of gravity to the coulter group 18. When the mud turns at the end of the heading or transporting it, the b / coulter group 18 rises, turning the lift shaft 17, which, by means of the lever system 16, rotates the shutter 15, shutting off the cross section of the receiver 10. The air entering the receiver 10 from the air injection source 12 opens under pressure valve 14 and goes to the atmosphere. Thus, the invention provides a simplified construction of the crop by providing an air injection source in the form of a vane pump connected to the seed wheel. In addition, an increase in the quality of sowing is achieved by making the seed distributor sem wires in the form of a shaped bunker bottom and by blocking the air in the off position of the seedling. The invention of the Universal Pneumatic Seal, comprising a bunker with a seed distribution system, communicated with an air supply source and a receiver, a coulter group connected by means of spring-loaded rods with a lifting shaft, and running gear that is In order to improve the quality of sowing and simplify the design, the air injection source is designed as a vane pump, which is kinematically connected to the crawling sprocket wheel / while in the receiver there is a valve and valve that is connected by rymazhnoy ball lifting system coulter group. Sources of information taken into account in the examination 1. USSR author's certificate no3afleKetf2829824 / 30-15, Kn.A01 € 7/0, 2. The patent of Germany tf, cl. And 01 i 7/08, 197 (prototype).