JPH0238595Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rotary sorting device for a combine harvester.

Conventionally, in the case of combine harvesters, grains were sorted by applying mechanical vibration motion to the sieve and applying wind power, but as the sorting area became larger, the size of the combine itself naturally increased.
It was inconvenient to turn around easily, which caused problems in reaping work.

In addition, as another conventional example, for example,
As shown in No. 3804, there is a threshing sorting device in which a rotary cylindrical body for centrifugal sorting with many holes bored around the periphery is installed in a rotary handling drum space mounted on an axis in a handling chamber. Since the grain sorting device is installed inside the container and rotates as a unit, the space for the grain sorting device is narrow and grains cannot be sorted smoothly.

In this invention, in order to eliminate the above-mentioned drawbacks, a rotary type paddy sorting section for the sole purpose of sorting paddy is integrally connected to the threshing section, thereby reducing the sorting area.
Furthermore, it is an object of the present invention to provide a rotary sorting device for a combine harvester, which eliminates the need for the conventionally required No. 1 conveyor, grain sieve, feed pan, and even stroke rack.

The embodiment of the present invention will be explained in detail based on the drawings.
A indicates a combine harvester, and the combine A has a reaping section 1 at the front, a threshing and sorting section 2 at the rear, and a running section 3 running on a cover belt at the bottom. While traveling by the traveling part 3, the grain culm is harvested by the reaping part 1, and the harvested grain culm is threshed by the threshing sorting part 2 and sorted by the rotary sorting method, and the fine grains are recovered. It is configured to do the following.

The threshing sorting section 2 is divided into front and rear parts, with a threshing section 4 provided in the front and a rotary paddy sorting section 5 interlocked with the rear of the threshing section 4.

The threshing section 4 is provided with a handling chamber 6 and a handling drum 7 mounted on a shaft in the handling chamber 6, and the handling drum 7 is formed into a cylindrical drum and has a large number of handling teeth 8 protruding from its peripheral wall. While the grain culm is transported by a feed chain 26 provided on the side of the handling chamber 6, the tips of the grains are handled by a handling cylinder 7 and handling teeth 8 in the handling chamber 6 to perform a grain-shredding operation.

The rotary type paddy sorting section 5 consists of a sorting cylinder 9, a screw conveyor 10 built into the center of the sorting cylinder 9, and a receiving gutter 11 that surrounds the lower half of the conveyor 10. It is formed into a cylindrical drum shape having a slightly larger diameter than the chamber 6, and
The peripheral wall surface has a large number of grain engaging recesses 9- in the front-rear direction.
1, the vertical cross-sectional shape is formed into an uneven wavy shape, and the recess 9-1 is formed to such an extent that one vertically long lower half of grain B engages with the recess 9-1.
1 is transported to a predetermined diagonally upper position as the sorting cylinder 9 rotates, and then the grain B
It is configured so that it naturally falls under its own weight and accumulates in the receiving gutter 11.

The front end of the sorting cylinder 9 is overlapped with the rear end of the handling chamber 6 as shown in FIG. 10-1 are interlocked so that the sorting cylinder 9 and the screw conveyor 10 rotate together with the rotation of the handling cylinder 7.

The screw conveyor 10 has a conveyor shaft 10-1 rotatably connected to the center axis of a cylindrical drum-shaped sorting cylinder 9, and a fan 10-2 is arranged in a spiral shape on the peripheral wall of the conveyor shaft 10-1. Installed on the receiving gutter 11
It is configured to transport the grains B accumulated therein to a rear position.

The receiving gutter 11 is formed into a substantially U-shape with a wide angle upward in vertical cross section, and has an opening 12 at the top. The lower end of the guide valve 11-1 is pivoted to surround the lower half of the screw conveyor 10, and the grains B that have been sorted and conveyed by engaging with the grain engaging recess 9-1.
It is configured to ensure that the paddy inside falls and accumulates in the receiving trough 11.

The paddy that has finally been sorted into the receiving trough 11 is transported to the upper paddy tank 13, and the unshipped rice remaining on the inner wall of the lower half of the sorting barrel 9 is transported to the threshing section 4 for re-threshing. It is something that Furthermore, if the paddy tank 13 is provided below the threshing section 4, it can be made more compact.

This other embodiment shows a rotary sorting device for use in an axial flow type combine harvester, in which a threshing section 14 and a sorting section 15 are integrally constructed, and handling teeth 17 are provided on the outer peripheral wall of a drum 16. In addition, a large number of paddy guide fans 18 are protruded from the rear peripheral wall to promote the flow of paddy, and a concave 19 opposite to the handling teeth 17 is provided below the lower half of the drum 16. The drum 16 is surrounded by a concave 19 and a blind plate 20 to form a handling chamber 21, and a sorting cylinder 22 is formed in the shape of a cylindrical drum around the outer periphery of the drum 16 to surround the handling chamber 21. At the same time, the shape of the peripheral wall is formed into a plurality of grain engaging recesses 22- in the front-rear direction.
1, the vertical cross-section is formed into an uneven and wavy shape, and a receiving gutter 23 is installed on the upper wall of the handling chamber 21.
The screw conveyor 25 is installed in the receiving gutter 23, and the screw conveyor shaft 25-1 is coaxial with the screw conveyor shaft 25-1. -1 Consists of a fan 25-2 installed in a spiral shape on the surrounding wall, mounted on an axis, and installed in the handling room 21.
The grains threshed inside are sieved through the concave 19 and fall onto the inner wall of the sorting cylinder 22, and further, as the sorting cylinder 22 rotates, the grains are engaged with the grain engaging recess 22-1. Pipe 2 receives only the paddy in the grain
The structure is such that the paddy that has fallen into the third section and accumulated in the receiving gutter 23 is transported to a rear position by a screw conveyor 25. In addition, 29-1 in the figure is a grain guide valve pivotally installed at the upper right end of the receiving trough 23.

The embodiment of the present invention is configured as described above, and while the combine harvester A is run by the traveling part 3, the grain culm is reaped by the reaping part 1,
The grain culm tip is threshed by a handling drum 7 in a handling chamber 6 while being transported by a feed chain 26. At this time, the grain tip is threshed by a large number of handling teeth 8 protruding from the peripheral wall of the handling drum 7. At the same time, the grain B, which is made up of unshipped grains and paddy, flows into the sorting cylinder 9, which is rotating as the handling cylinder 7 rotates. , the lower half engages with the grain engaging recesses 9-1 provided in multiple rows on the sorting drum 9, and in the same state, as the sorting drum 9 rotates, the grains are transported upward, but unshipped grains are Grains (grains attached to branches and stems, etc.) fall naturally, and only the paddy is transported to a predetermined height, where it falls due to its own weight. The guide valve 11-1 is extended, and the guide valve 1
The opening 12 is formed by the tip of 1-1 and the upper left end of the same receiving gutter 11.
As a result, the paddy is reliably accumulated in the receiving trough 11 through the opening 12, and the accumulated paddy is further conveyed to the paddy tank 13 via the screw conveyor 10, and the paddy remaining in the sorting cylinder 9 is The accumulated unthreshed grains are transported to the threshing section 4 for re-threshing.

According to the present invention, the threshing section and the rotary paddy sorting section are interlocked and connected for the sole purpose of sorting paddy, and the threshing sorting section is integrated, so there is no need for a large number of parts. It is possible to increase the size of the processing section to perform sorting of a large amount of paddy, and conversely, it has the effect of making it possible to reduce the size and weight of the combine harvester itself by reducing the sorting area.

In addition, the present invention is equipped with a rotary type paddy sorting section behind the threshing section, which has a large number of grain engaging recesses on the inner circumferential surface of the sorting barrel and a receiving gutter in the center. This greatly improves accuracy.

[Brief explanation of the drawing]

FIG. 1 is a side view of a combine harvester having a rotary sorting device according to the present invention. FIG. 2 is a partially cutaway side view of the main part. FIG. 3 is a longitudinal cross-sectional view taken along the - line of the same main part. FIG. 4 is a partially cutaway side sectional view showing another embodiment of the same essential part. FIG. 5 is a longitudinal sectional view taken along the - line of the same essential part. A: combine harvester, 1: reaping section, 2: threshing and sorting processing section, 4: threshing section, 5: rotary paddy sorting section,
6: Handling room, 7: Handling cylinder, 8: Handling tooth, 9: Sorting cylinder: 1
0 Screw conveyor, 11: Receiver, B: Grain.

Claims (1)

[Scope of utility model registration request] At the rear of the threshing section 4, a rotary type paddy sorting section 5 is provided in which a large number of grain engaging recesses 9-1 and a receiving gutter 11 are arranged in the center on the inner circumferential surface of the sorting barrel 9, and the rotary type paddy sorting section 5 is arranged in the inner peripheral surface of the sorting barrel 9. A rotary sorting device for a combine harvester, characterized in that a threshing sorting section 2 is integrated with a paddy sorting section 5 in an interlocking manner.