SU923409A1 - Pnematic sower - Google Patents

Description

(B) PNEUMATIC PLANT

I

The invention relates to agricultural machinery industry and is intended for use in agricultural production for sowing crops and making mineral fertilizers |

A pneumatic seed distributor is known, which includes a special feeder mounted on a splitter and a distributor, the casing of which is designed as a discharge cyclone, and the walls have annular projections. The discharge pipes are connected to the conical bottom of the cyclone I.

A disadvantage of the known seed distributor is that it feeds grain to these wires, and therefore to the coulters unevenly.

The closest in technical essence to the present invention is a pneumatic splitter containing a storage hopper communicated by pipelines with a source of compressed air, a dispenser which is located

In the lower part of the storage bin, and this wires 2.

A disadvantage of this device is that it does not allow the exact dosage of seeds to the openers due to the pulsating nature of the seed supply.

The purpose of the invention is to improve the uniformity of seed supply to these wires.

ten

This goal is achieved by the fact that in a pneumatic splitter the bunker storage device is made in the form of a cylinder with an annular expansion in the lower part, and the dispenser is made in the form of

Claims (2)

IS centrifugal horizontal disc with blades fixed on the periphery at an angle to its radius, above which a conical rectifier is fixed on the bunker lid, while the 20 ruler and centrifugal disk are located in the zone of ring expansion, and in the bottom of the bunker are slotted outlet the holes, in addition, the angle ytTaHOBKM of the blades of the centrifugal disk is no more than 90 °, and the outlet slit holes are located at an angle of no more than 5 to the radius of the cylinder. Such an embodiment of the device will ensure an increase in the uniformity of supply of seeds to these wires due to the fact that the sowing material is evenly distributed across the bottom of the storage hopper and is gradually unloaded through the outlet openings and will reduce the material intensity of the salt. FIG. 1 shows a hopper axonometric view; in fig. Fig. 2 is a section (of a hopper by a vertical plane; in Fig. 3; a rotating disk with vanes in axonometry; in Fig. K is a section A-A in Fig. 1. The pneumatic separator includes a source of compressed air communicated by pipelines 1 (not shown ) storage hopper 2. In the lower part, storage hopper 2 is equipped with a metering device 3. Sem wires L. are installed under the storage hopper 2. This bunker 2 is made cylindrical and has an annular extension 5 in the bottom part. In the fixed bottom 6 there are discharge openings 7 making up the angle to 5 ° with its radial straight lines. The dispenser 3 includes a tapered guide 8 and a centrifugal disk 9 with blades rigidly fixed on it. 10. The blade 10 moves in an annular expansion 5 The blades 10 are set at an angle less than 90 ° to the radius of the disk. drive 2 in the upper part is hermetically sealed with a lid 11 and provided with a discharge pipe 12. The pipelines 1 and 12 are installed tangentially to the generator of the bunker 2. 2. In working condition, the grain-air mixture is all the time pumped into the storage hopper 2 through the inlet, pipeline 1. In the storage hopper 2, the mixture separates into seeds, which are lowered onto the conical surface and sent 8 closer to the rotating blades 10 of the disk 9, and the air 9 4 leaves through the outlet pipe 12. The blades 10 move the load along the annular extension 5 to the outlet slit-like openings 7 of the bottom 6, through which the seeds spill into the seed wires C installed under the outlets 7. The apertures 7 are made at an angle to the radial straight bottom. This makes it possible to achieve a uniform spillage of the seeds through the apertures 7, since the seeds moved by one blade 10 are not completely poured out, and the seeds start to pour out through the same aperture 7, moved by the next blade 10, etc. When the seed hopper 2 is completely filled with seeds, the excess grain-grain mixture is not separated, is transported via branch pipe 12 further, either to the next successively connected similar bunker-drive, or is dumped again into the main bunker. The use of the invention will make it possible to simplify the design of the crop, reduce the metal consumption of the bunker, accumulate higher yields by improving the uniformity of sowing by 20% or more, and reduce the consumption of materials for the oil. Claim 1. Pneumatic crop containing a storage hopper - communicated by pipelines with a source of compressed air, a dispenser which is located in the lower part of the storage hopper, and these wires, which in order to improve the uniformity of supply of seed This wire, the storage hopper is made in the form of a cylinder with an annular expansion in the lower part, and the dispenser is made in the form of a centrifugal horizontal disc with blades fixed on the periphery at an angle to its radius, over which there is a lock on the cover of the hopper The conical guide is heated; the guide and the centrifugal disk are located in the zone of annular expansion, and in the bottom of the bunker there are slotted outlets at an angle to its radius. 2. Se lka pop. 1, I differ from the fact that the installation angle