RU2716983C1 - Grain combine harvester - Google Patents

Abstract

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to the agricultural machine building. Combine harvester comprises threshing apparatus 1, a rotary straw screener 2 and cleaning. Cleaning includes a housing, transport board 4 installed in the housing, flap board 5, an upper sieve stack 6, a lower sieve stack 7 and a drive. Drive is made with possibility of movement of transport board 4 and upper sieve 6 in antiphase with lower sieve boot 7 and discharge board 5.

EFFECT: invention improves dynamic characteristics of the combine harvester.

1 cl, 2 dwg

Description

The invention relates to agricultural machinery, namely to self-propelled combine harvesters.

A known combine harvester containing a threshing machine, a rotary straw walker and cleaning, including a housing, a transport board installed in the housing, a shaking board, an upper sieve mill, a lower sieve mill and a drive [Self-propelled combine harvester KZS-1420 "PALESSE GS14" 1420-0000000 IE. Gomselmash OJSC, 2016, p. 22, 24].

In the cleaning of this combine harvester during the process, the upper sieve mill, transport board and shaker board move in antiphase with the lower sieve mill. Elements moving in antiphase sharply differ in load, which does not provide dynamic balancing of oscillating cleaning units.

The closest technical solution to the proposed one is a combine harvester containing a threshing machine, a rotary straw walker and cleaning, including a housing, a transport board, a shaking board, an upper sieve mill, a lower sieve mill and a drive [Combine harvester self-propelled KZS-1624-1 " PALESSE GS16 »Operating Instructions KZK-16-2-0000000E IE. Gomselmash OJSC, 2017, p. 26, 28, 29].

When the technological process is performed by this combine harvester, the upper sieve mill, transport board and shaking board move in antiphase with the lower sieve mill. Elements moving in antiphase sharply differ in load, which does not provide dynamic balancing of oscillating cleaning units. This factor negatively affects the dynamic characteristics of the combine as a whole.

Thus, low dynamic characteristics are the main disadvantage of this combine harvester.

The technical problem solved by the claimed invention is the improvement of the dynamic characteristics of the combine harvester due to the dynamic balancing of the oscillating cleaning units.

The task is achieved in that in a combine harvester containing a threshing apparatus, a rotary straw walker and cleaning, including a housing, a transport board installed in the housing, a shaking board, an upper sieve mill, a lower sieve mill and a drive, the latter is arranged to move the transport board and the upper sieve mill in antiphase with the lower sieve mill and shaking board, while the drive can be made in the form of an oscillator and installed in the housing of the first two-shouldered lever and the second two-shouldered rye yeah, the first shoulder of the first two-shouldered lever is pivotally connected to the upper sieve mill and using a traction with an oscillator, the second shoulder of the first two-shouldered using the first rigid element is pivotally connected to the shaking board and is pivotally connected to the first shoulder of the second two-shoulder lever using the second rigid element, the second whose shoulder is pivotally connected to the transport board.

The combination of distinctive features of the proposed technical solution allows to obtain a previously unknown effect, expressed in that the execution of the drive with the possibility of moving the transport board and the upper sieve mill in antiphase with the lower sieve mill and the shaking board improves the dynamic characteristics of the combine harvester, which is not obvious for a specialist follows from the prior art.

The essence of the invention is illustrated by drawings, on which are presented:

FIG. 1 - combine harvester (fragment);

FIG. 2 - cleaning drive.

The combine harvester contains a threshing apparatus 1, a rotary straw walker 2, and cleaning (conditionally not indicated in FIG.). The cleaning includes a housing 3. In the housing 3, a transport board 4, a treater board 5, an upper sieve mill 6, a lower sieve mill 7 and a drive (not shown in FIG.) Are installed. The drive is made with the possibility of movement of the transport board 4 and the upper sieve mill 6 in antiphase with the lower sieve mill 7 and the shaking board 5. To carry out this movement in this combine harvester, the drive is made in the form of an oscillator (not shown conventionally in Fig.) And installed in the housing 3 of the first two-shoulder lever 8 and the second two-shoulder lever 9. The first shoulder of the first two-shoulder lever 8 is pivotally connected to the upper sieve mill 6 and using the rod 10 with an oscillator. The second shoulder of the first two-shouldered lever 8 is pivotally connected to the shaking board 5 with the first rigid element 11 and is pivotally connected to the first shoulder of the second two-shouldered lever 9, the second shoulder of which is pivotally connected to the transport board 4 using the second hard element 12.

Combine harvester operates as follows.

When the process is performed, the grain heap after threshing in the threshing apparatus 1 enters the cleaning process, the straw heap from the threshing apparatus 1 enters the rotary straw walker 2. In the cleaning, the grain is separated from impurities. Then the cleaned grain enters the accumulator device of the combine, and the crushed straw and all impurities are removed to the field. The separation of grain from impurities in cleaning occurs due to the oscillatory movements of the transport board 4, the shaker board 5, as well as the upper sieve mill 6 and the lower sieve mill 7. Oscillatory movements of the transport board 4, the shaker board 5, the upper sieve mill 6 and the lower sieve mill 7 provided that the drive is made in the form of an oscillator and installed in the housing 3 of the first two-shouldered lever 8 and the second two-shouldered lever 9, the first shoulder of the first two-shouldered lever 8 is pivotally connected to the upper sieve mill 6 and using the rod 10 s to oscillator, the second shoulder of the first two-shouldered lever 8 using the first rigid element 11 is pivotally connected to the shaking board 5 and using the second hard element 12 is pivotally connected to the first shoulder of the second two-shoulder lever 9, the second shoulder of which is pivotally connected to the transport board 4. In addition, in this way, the drive ensures the movement of the transport board 4 and the upper sieve mill 6 in antiphase with the lower sieve mill 7 and the shaking board 5. Since the pairs moving in antiphase are approximately equal in load uzke, provides dynamic balancing of the oscillating transport board 4 stryasnoy board 5, the upper sieve box 6 and the lower sieve box 7.

Thus, the execution of the drive with the possibility of movement of the transport board 4 and the upper sieve mill 6 in antiphase with the lower sieve mill 7 and the shaking board 5, improves the dynamic characteristics of the combine harvester.

The claimed technical solution of the combine harvester is suitable for industrial implementation in an industrial enterprise specializing in the production of agricultural harvesting equipment.

Claims (2)

1. Combine harvester comprising a threshing apparatus, a rotary straw walker and cleaning, including a housing, a transport board installed in the housing, a shaking board, an upper sieve mill, a lower sieve mill and a drive, characterized in that the drive is configured to move the transport board and the upper sieve the mill in antiphase with a lower sieve mill and a shaking board. 2. Combine harvester according to claim 1, characterized in that the drive is made in the form of an oscillator and mounted in the housing of the first two-shouldered lever and the second two-shouldered lever, while the first shoulder of the first two-shouldered lever is pivotally connected to the upper sieve mill and using a traction with the oscillator, the second shoulder of the first two-shouldered lever is pivotally connected to the treble board with the first rigid element and is pivotally connected to the first shoulder of the second two-shoulder lever with the second rigid element, the second shoulder of which is articulated with united with a transport board.

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