SU1565385A1 - Grain header - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery. The purpose of the invention is to increase reliability and reduce crop losses. The harvester of the combine harvester contains a reel 2 with blades fixed on it, two conveyors 4 placed in a vertical plane on both sides of the beater 5. The conveyors 4 are equipped with combs 9, the tips of which 11 are located on a line equivalent to the movement of the blade of the reel 2. Thanks With this arrangement, the blade of the reel 2 brings the grain mass into contact with the fingers 11 across the entire width of the conveyor 4, thus ensuring the reliability of the mass capture. The grain mass held by the combs 9 on the conveyor 4 moves to the biter 5 and then enters the inclined chamber 6. 3 sludge.

Description

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FIELD OF THE INVENTION The invention relates to agricultural machinery.

The purpose of the invention is to increase reliability and reduce crop losses.

FIG. 1 depicts the proposed header, top view; Fig 2 - the same, side view; in fig. 3 - kinematic diagram of the drive of the working bodies of the header.

The header contains a housing 1 on which a reel 2 is mounted on supports using slides (not shown), as well as a cutting apparatus 3 attached in its front part and successively in parts of the left and right parts of the header along the longitudinal axis of the header 3, in the vertical plane, the comb conveyors 4 are installed. In the central part of the housing 1 behind the conveyors 4 and parallel to them there is a four-lobe feeding beater 5, the length of which is equal to the width of the inclined chamber 6 (according to its internal size).

Each conveyor 4 consists of two shafts 7 rotating in bearings secured in housing 1. On shafts 7 in their lower part there are fixed sprockets 8 on which the branch of conveyor 4, consisting of lower and upper closed chains, is held and rotated. metal legs are attached to the comb 9. Each comb 9 has a common base — a plate 10 to which the fingers 11 are attached. The length of the fingers 11 in rows of the combs 9 is such that the line of their ends is parallel to the path of movement of the blade of the reel 2.

The conveyors 4 are driven by two bevel gears 12 from the sprocket sprocket 13 through the additional sprocket 14 via a roller chain.

The feed beater 5 consists of a metal cylinder 15 and blades 16 welded to it. The beater 5 is installed in the subfra &

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horn on two brackets 17, mounted in the housing 1.

The beater 5 is driven through a sprocket 18 mounted on its shaft from a sprocket 19 mounted on the header counter-drive shaft via a roller chain.

The proposed reaper works as follows.

When the header moves along the field, a portion of the grain mass captured by the blade of the reel 2 is brought to the cutting unit 3. After cutting, the blade of the reel 2 directs and delivers the cut mass to the conveyors 4. Due to the position of the tips of the fingers 11 of the combs 9 parallel to the trajectory of the blade of the reel blade 2, the latter brings the grain mass into contact with the fingers 11 across the entire width of the conveyors 4, thus ensuring the reliability of the mass grip. The mass held by the combs 9 on the conveyors 4 moves to the bitter 5, which in turn feeds it to the conveyor of the inclined chamber 6. The mass descends from the dies 9 to the bitter 5 under the action of inertial mass forces.

The basis for the size of combs 9 according to the height of the taken is the average height of the stems of grain crops 450 mm.

The distance between the combs 9 is established experimentally and corresponds to 250-300 mm, the increase in the number of combs on the conveyors 4 leads to the fact that they become an obstacle to the passage of mass between them and a negative moment is observed - the mass loss in the gap between the conveyor 4 and the blades Scotch 2 and its loading on this site. The distance between the fingers 11 is also established experimentally and according to

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150 mm, an increase in the distance between the fingers 11 causes the stem to deform (break) and the mass on the fingers 11 becomes entangled.

Reducing the distance between the fingers 11 in the rows of combs 9 leads to an increase in the number of fingers 11 and, consequently, to an increase in the mass of the conveyors 4, which increases the metal consumption of the structure.

The use of this design of the header provides a continuous and uniform supply of the grain mass on its way from the cutting unit 3 to the inclined chamber 6, with further further uniform loading of the threshing unit (not shown), which in turn contributes to high-quality threshing of the grain mass and the maximum percentage separation of grain pile.

Claims (1)

Invention Formula A harvester harvester containing a reel with blades attached to it, a cutting apparatus and a device behind it to divert the cut mass to an inclined chamber, and a feed beater is installed between this device and the chamber in order to increase reliability in operation and reducing yield losses, the device for removal of the cut mass is made in the form of two conveyors placed in a vertical plane on both sides of the feed beater, while the conveyors are equipped with combs, the ends of the blade ant which is disposed on a line equidistant movement path of the reel blades. figure 1 I hs FIG. 2