SU1232173A1 - Thrashing device for grain combine harvester - Google Patents

Description

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FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to the design of combine harvesters.

Known threshing device combine harvester, containing two successively installed threshing drum with decks, as well as intermediate and demolition beater 1.

The disadvantage of this threshing device is that threshing tools significantly damage the grain.

Known threshing device containing two successively installed threshing drum with decks, feed rollers, intermediate and breaker beater 2.

A disadvantage of the known threshing device is that it does not provide a full threshing, good separation of the grain and allows its significant crushing.

The purpose of the invention is a more complete threshing and improvement of grain separation, as well as a reduction in its injury in the increased humidity of the mass through the intensification of the action of working bodies.

This goal is achieved by the fact that each threshing drum is made in the form of a set of alternating discs with pin threshing elements mounted on a shaft and discs with air-conducting openings.

In addition, the feed rollers have a rubberized surface with longitudinal ribs, between which air-conducting holes are placed, and the distances between the rotational axes of the tines are less than the sum of the distances from the rotational axis of each tamper to the ends of its ribs.

At the same time, the working surface of the deck is made of rods that have a nylon coating, and the blades of the intermediate beater are made of mesh.

FIG. 1 is a diagram of a threshing device of a combine harvester; on

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FIG. 2 - threshing drum; in fig. 3 - discs with spline threshering elements; in fig. 4 — disks with air holes; in fig. 5 - feed roller; in fig. 6 - intermediate beater.

The threshing device comprises drums 1 with decks 2, feed rollers 3, as well as an intermediate beater 4 and a breakaway beater (not shown).

The drums 1 consist of a set of alternating discs 5 with studs 6 and discs 7 with holes 8, which are mounted on shaft 9.

The working part of deck 2 is made of rods that are covered with nylon.

The feed rollers 3 are mounted one above the other and have a rubberized surface with longitudinal ribs 10, and there are air-conducting holes 11 between them.

20 The intermediate beater 4 consists of blades 12, which are made of mesh. A combine harvester with the proposed threshing device contains a header (not shown), and a slitter (not shown) is provided for separating the new pile 2.

Threshing device operates as follows.

The flattened mass of the header is fed to a receiving bit (not shown), which

30 directs it to the feed rollers 3, where compression and partial threshing of the mass are performed. From the feed rollers 3, the mass enters the threshing drums 1, where a full threshing of grain occurs and its separation through deck 2 into the cracks. The removal of co35 crowns from drums 1 is carried out by an intermediate beater 4 and a fender beater.

During the operation of the device, compressed air is supplied to the feed rollers 3 and threshing drums 1, which cleans the working bodies from clogging and improves the grain separation process.

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Compiled by I. Belov

Editor N. TupitsaTehred I. VeresKorrektor A. Ferenc

Order 2490/2 Circulation 679 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

FIG. 6

Claims (4)

1. THRESHING DEVICE OF THE GRAIN HARVESTER 'COMBINE, containing two successively mounted threshing drums with decks, feed rollers, an intermediate and chipping beater, characterized in that, with the aim of more complete threshing and improvement of grain separation, as well as reducing its injury with increased mass moisture by intensification of the impact of working bodies, each threshing drum is made in the form of a set of alternating disks with pin threshing elements and disks with air ducts mounted on the shaft holes. 2. The device according to π. 1, characterized in that the feed rollers have a rubberized surface with longitudinal ribs, between which air duct holes are located, and the distance between the axes of rotation of the beaters is less than the sum of the distances from the axis of rotation of each beater to the ends of its ribs. 3. The device according to π. 1, characterized in that the working surface of the deck is made of rods that have a nylon coating. <e 4. The device according to π. 1, characterized in that the blades of the intermediate beater are mesh.