JPS6221483B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sorting device for a threshing machine that sorts out threshed grains and processed materials generated during threshing.

2. Description of the Related Art As a type of automatic threshing machine and self-threshing type combine harvester threshing machine, a double-barrel type threshing machine is known, which is provided with a handling barrel of the threshing machine and a processing barrel parallel to the handling barrel.
In this type of threshing machine, grains threshed by a handling drum rotating in a handling chamber pass through a receiving screen in the handling chamber below the handling drum, fall onto a sorting rack, and are sorted and collected. Processing materials such as straw waste, ear cuts, and kashimata generated during threshing (hereinafter simply referred to as processing materials) are handled together with some of the grains, and while being transported through the processing chamber, they enter the processing chamber and are rotated within the processing chamber. The barrel is used to cut or separate the grains in the processed material. The processed material and some of the grains transferred while being processed become dust and fall from the dust exhaust port at the end of the processing chamber onto the stroke rack in the sorting shelf, where they are sorted.

In this kind of double-barrel type threshing machine, the processing cylinder and the processing chamber generally extend rearward longer than the handling cylinder and the handling chamber, and the dust exhaust port is provided in the extended part of the processing chamber. It is designed to discharge dust in a direction perpendicular to the cylinder axis.
However, since the stroke rack has a rocking direction, that is, a direction in which the dust is transferred, in a direction parallel to the barrel axis, the dust accumulates on one side in the width direction of the stroke rack, and after being discharged, the dust moves at right angles. The sorting performance deteriorated due to the change in direction, and there was also the problem that the sorting path of the strorack could not be made longer in order to downsize the machine.

On the other hand, among small combine harvesters equipped with single-barrel type threshing machines that do not have a processing barrel, there are those in which the axial direction of the processing barrel and the direction of transport of waste material are parallel to each other. In addition, the screening path of the Strollack was not long enough to ensure good screening performance.

The present invention has been made in view of the above points, and provides a multi-barrel type threshing machine with a sorting shelf that has approximately the same width as the entire length of the processing chamber, and a sorting shelf that corresponds to the dust exhaust port of the processing chamber. By arranging them in two stages (upper and lower) so that they can be sorted by swinging in a direction perpendicular to the handling cylinder axis, it is possible to improve the dispersion of waste on the sorting shelf, smooth the transfer, and improve sorting performance. The present invention provides a sorting device for an ivy threshing machine.

Hereinafter, its configuration and the like will be explained in detail with reference to embodiments shown in the drawings.

1 to 3 show a sorting device according to the present invention, FIG. 1 is a side sectional view of a threshing machine implementing this, FIG. 2 is a cross-sectional view, and FIG. 3 is a vertical sectional view. be. In these figures, a threshing machine 1 is mounted on a traveling crawler 2, and its frame 3 includes a processing chamber 4, a processing chamber 6 arranged parallel to the side with a partition plate 5 interposed therebetween, and a It is integrally formed with a sorting chamber 7 provided so as to extend from below both chambers 4 and 6 in the direction in which they are arranged side by side. In the handling chamber 6, there is mounted a handling cylinder 9 which has a large number of processing teeth 8 arranged on its circumferential surface and rotates in the direction shown by arrow A in the figure, and above which a handling cylinder cover is mounted. covered by 10. Further, on the side and below the handling drum 9, a handling chamber receiving screen 11 is stretched, which is formed in an arc shape concentric with the handling drum 9 and leaks the threshed grains. After the grain culm is supplied from the grain culm supply port 12, it is threshed.
It becomes waste straw and is discharged from the discharge culm opening 13.

In addition, although the starting end position of the processing chamber 6 is almost the same, it is extended longer toward the rear culm discharge port 13 side than the handling chamber 4, and inside the processing chamber 6, it is also formed longer than the handling barrel 9 and is formed on the circumferential surface. A large number of processed teeth arranged 1
4 and a processing cylinder 15 which rotates in the same direction as the processing cylinder 9 as shown by arrow B in the figure is mounted on an axis. Further, below the processing barrel 15, a processing chamber receiving net 16 is provided, which is formed in an arc shape concentric with this and leaks the grains separated in the processing chamber 6, and both chambers 4, The partition plate 5 between the two chambers 6 is provided with two dust inlet ports 17 that communicate the two chambers 4 and 6.

Below both the chambers 4 and 6, there is a first sorting shelf 18 having a width that is approximately the same as the entire length of the processing chamber 6 and a total length that approximately corresponds to the entire width of both the chambers 4 and 6.
The base on the processing chamber 6 side is supported by an eccentric cam (not shown), and the central part is supported by a swing arm (not shown). It is designed to swing in a direction perpendicular to the axial direction of the handling cylinder 9. This first sorting shelf 18 is made up of a grain pan 19 and a sorting net 20 attached to its tip, and by its swinging, the two receiving nets 11, 16 are
The grains and straw waste leaked from the shaft are sorted and transferred toward the tip in the direction of the swing.

Further, below the first sorting shelf 18, there is a winch 21 that generates sorting air and blows it into the sorting shelf 18.
and a No. 1 spiral conveyor 22 that laterally transports the grains that have fallen from the sorting net 20 are rotatably mounted in parallel with the handling cylinder 9.

On the other hand, in the extension of the processing chamber 6, a dust outlet 23 is provided which opens toward the handling chamber 4 and discharges the processed material and some of the grains in the processing chamber 6 as waste. ing. On the side of the handling chamber 4 facing the dust exhaust port 23, there is formed a section having approximately the same width as the extended portion of the processing chamber 6 and extending in the same direction as the first sorting shelf 18. Second sorting shelf 24 formed
is supported and mounted on the processing chamber 6 side. The second sorting shelf 24 includes a stroll rack 25 formed in the shape of a corrugated plate, a large number of rod-shaped sieve wires 26 attached to the tip thereof, a grain pan 27 below the stroll rack 25, and a grain pan 27 provided at the tip thereof. The sorting net 28 is mounted on the rear side of the handling chamber 4, that is, above the lower end of the handling chamber 4, and is moved to the first sorting shelf 18 as shown by arrow D in the figure by a swinging mechanism (not shown). By swinging in the same direction,
The dust discharged from the dust exhaust port 23 is sorted and transferred toward the tip according to the swinging direction.

Further, below the sieve line 26, a second spiral conveyor 29 is mounted, which laterally transfers the second material left after the sorting and falls between the lines of the sieve line 26. A second grain lifting machine 30 is provided at the terminal end for lifting and transferring the second grain and returning it to the handling chamber 4. On the other hand, a suction fan 31 is provided diagonally above the sieve line 26 to suck up the grains transferred by both sorting shelves 18 and 24 and light straw debris in the dust and discharge them to the outside of the machine. It is being
Reference numeral 32 designates a lifting cylinder for lifting and transferring the grains transferred by the No. 1 spiral conveyor 22, and 33 represents a hopper for discharging the lifted grains to a bagging device. Also 3
4 is a feed chain which, together with the clamping rod 35, clamps the root part of the grain culm and conveys it in the axial direction of the handling cylinder 9.

In the threshing machine 1 configured as described above, the grain culm conveyed by the feed chain 34 is threshed by the handling cylinder 9, and the threshed grain leaks through the handling chamber receiving net 11. The first sorting shelf 1
Fall on top of 8. Then, the grains are sorted while being transferred by the oscillation, and are further sorted by the sorting wind of the winnowing machine 21, after which they are passed through the No. 1 spiral conveyor 22, the lifting cylinder 32, and the hopper 33, and then collected and packed in bags.

On the other hand, while the processed material generated during threshing, including some grains, is transferred through the handling chamber 4,
After entering the processing chamber 6 and being cut by the processing cylinder 15 or separating the grains present in the processing material, some of the grains fall from the processing chamber receiving net 16 and are transferred to the first processing chamber 6. It merges with the grains on the sorting rack 18 and is sorted and collected. The remaining processed material and grains become dust and are discharged from the dust outlet 23.
The paper falls onto the stroke rack 25 of the sorting shelf 24, and is transported toward the tip while being sorted by its swinging movement. During this transfer and sorting, the grains fall onto the grain pan 27 below, and the sorting net 2 at the tip of the grain pan 27
8 and the sorting wind of the chisel 21, and fall onto the No. 1 spiral conveyor 22 to be collected. In addition, light straw waste etc. in the waste material transferred on the strorack 25 is removed by the air blower of the karachi 21 and the suction fan 31.
is discharged outside the machine by suction. As a result, the remaining waste material becomes so-called second material, which falls between the sieve lines 26 onto the second spiral conveyor 29 and is transferred, and is returned to the handling room by the second grain lifting machine 30. The above selection is repeated.

In the threshing sorting work described above, since the axial direction of the processing cylinder 15 and the direction of dust transfer of the second swinging shelf 24 are perpendicular to each other, the dust discharged from the dust outlet 23 is As the processing cylinder 15 rotates, the dust is dispersed and thrown in the width and length directions of the stroll rack 25, and since the discharge direction and the transport direction are the same, the waste remains on the strol rack 25. Transfer is smooth without any hassle. Furthermore, since the waste sorting path is long and covers almost the entire width of the machine, the dust is sufficiently sorted during this time and the sorting efficiency is improved. In addition, the first sorting shelf 18 and the second
Since the sorting shelves 24 are mounted below and above the lower end of the handling chamber 4, the sorting paths for grains and waste are separated and the two do not mix. .

As is clear from the above description, according to the present invention, the processing chamber is provided with the starting end position being approximately the same and extends rearward from the processing chamber, and the dust exhaust port is opened in the extended portion of the processing chamber. In a multi-barrel type threshing machine that removes dust from the
A sorting shelf with a width corresponding to the dust exhaust port of the processing chamber and a second sorting shelf with a width corresponding to the dust exhaust port of the processing chamber are arranged below the handling chamber and at the upper rear side of the handling chamber, respectively. Since the sorting shelf is structured to swing in the direction perpendicular to the handling cylinder axis, the dispersion of the waste on the sorting shelf is improved, making its transfer smoother, and the sorting path is longer, making it easier to move the waste. Since the sorting is done sufficiently, the sorting performance is significantly improved compared to the conventional method. Furthermore, since the grain sorting path and the waste sorting path are separated, grain collection is improved and grain loss is reduced, and a second sorting shelf for the waste is provided. Since it is installed by making effective use of the space on the machine stand at the rear of the handling room, it is possible to reduce the size of the machine stand very effectively.

[Brief explanation of the drawing]

1 to 3 show a sorting device for a threshing machine according to the present invention, FIG. 1 is a side sectional view of the threshing machine implementing this, FIG. 2 is a cross-sectional view, and FIG. 3 is a vertical sectional view. It is a front view. 1... Threshing machine, 4... Handling room, 6... Processing room,
9... Handling cylinder, 18... First sorting shelf, 23...
Dust exhaust port, 24...second sorting shelf.

Claims (1)

[Claims] 1 Comprising a handling chamber 4 and a treatment chamber 6 which is arranged parallel to the treatment chamber 4 and at almost the same starting end position and extends long from the treatment chamber 4 toward the rear of the culm, and has an opening in the extension part of the treatment chamber 4. In a threshing machine that discharges dust from the dust exhaust port 23 toward the handling chamber side, there is a third section, which is formed to have approximately the same width as the entire length of the processing chamber 6, and which performs sorting by swinging in a direction perpendicular to the handling barrel axis. One sorting shelf 18 is installed below the handling chamber 4, and this first sorting shelf 18 is installed below the handling chamber 4.
A second sorting shelf 18 swings in the same direction as the sorting shelf 18 and sorts the waste discharged from the dust outlet 23 of the processing chamber 6.
The sorting shelf 24 is placed in the handling chamber 4 facing the dust exhaust port 23.
A sorting device for a threshing machine, characterized in that it is installed on the rear side and above the lower end of the handling chamber 4.