RU2473203C1 - Pneumatic loading device of harvester-thresher - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to agricultural machinery industry and can be used for transportation of grain into the harvester hopper. The pneumatic loading device comprises a grain auger which feeds the grain into the transport pipe. The air flow is discharged with the fan to the transport pipe end to provide the grain movement through the pipe into the depression chamber. In the lower part of the depression chamber the output window is located which is directed to the bottom of the hopper. The depression chamber is connected to the diffuser of the hydrostatic transmission through the air duct and elbows. The transport pipe with the depression chamber is mounted horizontally in the upper part of the hopper. In the depression chamber the grain mass with the air discharged from the fan is facing the oncoming airflow from the cooling system of the hydrostatic transmission. At the flows meeting in the depression chamber the grain falls by gravity through the outlet window to the hopper bottom.

EFFECT: when moving the grain to the hopper with the air flow is not subject to crushing and damage.

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Description

The invention relates to agricultural machinery and can be used for mechanized harvesting of crops.

A known grain vacuum harvester comprising a platform, a running gear, an electric power generating unit, an air-pressure drive, a transport pipe, a cyclone, an air-pressure drive, an unloading pipe, a telescopic section, an unloading cyclone, a cabin. [one].

The disadvantages of this design are large overall dimensions, high metal consumption, as well as energy consumption, aimed at creating a vacuum.

The closest in technical essence and the achieved positive effect is a pneumatic system for transporting threshing products in a combine harvester, including a hopper, a loading device for grain and a loading device for spikelet residues connected to the fan by means of supply and return air ducts and exhaust material pipelines. [2].

The disadvantage of this design is the clogging of the perforated gasket.

The objective of the invention is to increase the reliability and speed up the process of harvesting and drying grain, simplifying the design, reducing metal consumption and energy costs, with environmental safety.

The problem is solved by the following set of features of the proposed device.

The proposed pneumatic loading device of the combine harvester, as well as the known one, includes a grain auger, a fan, a transport pipe and a loading hopper, in contrast to the prototype, a rarefaction chamber is connected to the output of the transport pipe, which is connected to the GST diffuser (hydrostatic transmission) through an air duct and outlets, moreover in the lower part of the rarefaction chamber, an exit window is made directed to the bottom of the loading hopper, while the transport pipe with the rarefaction chamber is installed horizontally in the upper zagruznogo of the bunker.

In Fig.1 shows a pneumatic loading device mounted on a combine harvester, Fig.2 is a section aa, Fig.3 is a top view of Fig.1.

The pneumatic loading device contains the following nodes:

grain auger 1, fan 2, transport pipe 3, vacuum chamber 4, outlet window 5, air duct 6 connecting the vacuum chamber 4 with a diffuser 7 with a cooling system GTS 8, loading hopper 9.

Works pneumatic boot device as follows.

The grain auger 1 delivers grain to the transport pipe 3, on the approach to the pipe, the fan 2 pumps the grain flow with air, thereby contributing to the rapid movement of grain through the pipe into the rarefaction chamber 4, without subjecting it to crushing and injury, at the outlet of the pipe, the grain enters the rarefaction chamber where the grain mass with forced air from the fan collides with the oncoming air flow from the cooling system 8 GTS (hydrostatic transmission). Moreover, the process of meeting the flows takes place in the rarefaction chamber 4 while the process of drying the grain. Then there is a rarefaction and the grain under its own weight through the output window 5 falls to the bottom of the loading hopper 9.

The simplicity of the design allows to reduce the overall dimensions of the combine. The use of the rarefaction zone helps to preserve the structure of the grain material, accelerate the drying process, which significantly reduces the time of grain ripening in the warehouse.

Information sources

1. Patent RU No. 2307497, IPC A01D 41/00, A01D 41/02, application 2006105537/12, 02.22.2006. Bolshakov M.M., Sidorenko S.A.

2. Patent RU No. 2316933, IPC A01D 41/12, application 2006112392/12, 04/13/2006. Parinov V.F., Savelyeva E.V.

Claims (1)

The pneumatic loading device of the combine harvester contains a grain auger, a fan, a transport pipe, a loading hopper, characterized in that a rarefaction chamber is connected to the outlet of the transport pipe, which is connected to the hydrostatic transmission diffuser through the air duct and outlets, and an exit window is made in the lower part of the rarefaction chamber, directed to the bottom of the loading hopper, while the transport pipe with a vacuum chamber are installed horizontally in the upper part of the loading hopper.

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