JPS5844828Y2 - Combine 2nd processing device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a second processing device of an axial flow sorting section provided below the threshing section in a combine harvester.

Conventionally, in the sorting section of a combine harvester, after threshing, the second reduced product of the mixture of paddy and straw, which is sorted and taken out to the second gutter, is sent to the second thrower again in the handling room of the threshing section or the shaker at the front of the sorting section. Sorting can be repeated by returning to either side of the moving plate.

By the way, if the unprocessed material is returned to the threshing section side, there will be no unprocessed material and the sorting accuracy will be improved, but on the other hand, the throughput will be reduced, and if the unprocessed material is recycled in the sorting section, it will be difficult to completely process the unprocessed material.

In general, the appearance of unprocessed substances in the No. 2 reduced product depends on the condition of the ears of grain, the degree of hulling, etc.
It is desirable that the reduced product can be freely selected and returned to either the threshing section or the sorting section.

The present invention was proposed in order to meet these demands.
The discharge port of the No. 2 reducing cylinder that leads the No. 2 reduced material is located between the leakage chamber above the shaking plate of the sorting section and the threshing section handling chamber, and can be freely selected to either one using a switching valve. The present invention provides a No. 2 processing device for a combine harvester that is capable of reducing No. 2 reduced products.

The present invention will be explained below with reference to the embodiments shown in the drawings. In Fig. 1, the combine harvester has a machine body 2 mounted so as to be able to swing on a traveling device 1 that protects it from rubber crawlers, etc.; A reaping section 3 is provided.

Behind the reaping section 3, a transport device 4 for harvested grains and a driver's cab 5 are provided, and behind these, a feed chain device 6 is installed.
, a threshing section 7, and a paddy storage device 8 are provided, and furthermore, a sorting section 9 is provided below the threshing section 7, and a straw discharge device 10 is provided behind it.

In FIGS. 2 and 3, the threshing section 7 includes a lower-class handling drum 12 rotatably provided inside a handling chamber 11, and
A crimp net 13 is bent in an arc shape and stretched under the wire.

Further, the feed chain device 6 is provided near one side of the threshing section ceiling plate 20 above the handling barrel 12, and the grains inserted into the handling chamber 11 while being held by the feed chain device 6 are The paddy is scraped off from the tip by a rotating handling cylinder 12.

In addition, the sorting section 9 has a leakage chamber 14 provided on the side of the aforementioned handling chamber 11, and a rocking plate 15 is installed between the leakage chamber 14 and the lower part of the crimp net 13 to transport the paddy and grains, and to perform rocking sorting. The No. 1 gutter is installed with the No. 1 conveyor (not shown) immediately below and behind the rocking plate 15, and the No. 2 gutter 17, which has the No. 2 conveyor 16 behind it, is a mixture of paddy and strawberries. It is provided to accommodate the No. 2 reduced product.

A No. 2 thrower 18 is attached to one end of the No. 2 conveyor 16, and a No. 2 reducing cylinder 19 is mounted thereon.
This No. 2 reducing cylinder 19 has a No. 2 reducing product discharge port 19' that opens near the other side of the threshing section ceiling plate 20.

As a result, the No. 2 reduced product in the No. 2 gutter 17 is transported.

Additionally, a switching valve 21 is provided above between the leakage chamber 14 and the handling chamber 11.
is provided to return the No. 2 reduced product discharged from the No. 2 reducing cylinder 19 to the handling chamber 11.

Therefore, according to the present invention, in such a combine harvester, a tapered portion 20' is provided at the corner of the threshing section ceiling plate 20 on the discharge port 19' side.

Furthermore, the switching valve 21 extends along the longitudinal direction of the handling barrel 12 and is openably provided on the side of the handling chamber 11 opposite to the tapered portion 20'.

This switching valve 21 is rotated by a bundle 22,
The handling chamber 11 and the leakage chamber 14 can be switched to communicate with each other or to be disconnected from each other.

As a result, the paddy and straw that have been threshed in the threshing section 7 during the harvesting operation fall from the handling room 11 through the crimp net 13 and are oscillatedly sorted by the oscillating plate 15 in the sorting section 9.

The No. 2 reduced product, which is a mixture of paddy and strawberries after sorting, is taken out to the No. 2 gutter 17, and from there, it is sent to the No. 2 reducing tube 19 by the No. 2 conveyor 16, and then conveyed by the No. 2 thrower 18. will be done.

Therefore, when there is almost no normal unprocessed material, the switching valve 21 is placed in a state where the compartment 11.14 is shut off by the bundle 22, and thereby the paddy and straw in the No. 2 reduction cylinder 19 are separated.
All of the reduced products are discharged into the leakage chamber 14 of the sorting section 9, and from there are led to the rocking plate 15 as shown by arrow A, where they are again subjected to the sorting action.

In this case, the rotation of the lower-class handling cylinder 12 causes a weak upward movement (
The wind blows in the direction opposite to the arrow A in FIG.
Even if the No. 2 reduced product discharged from the filter 9' is blown upward, it is reflected by the tapered part 20', and is further smoothly dropped and returned to the swing plate 15 of the sorting part 9 along the outer surface of the switching valve 21. .

Since the corner of the threshing section ceiling plate 20 on the discharge port 19' side is formed in a tapered shape in this manner, the corner does not become a snowdrift.

On the other hand, if the loss increases due to the generation of unprocessed matter or the generation of grains with twigs, the switching valve 21 is brought into communication between the two chambers 11 and 14.

Then, the No. 2 reduced product acceleratedly discharged from the No. 2 reducing cylinder 19 is direction-changed by the tapered portion 20' of the ceiling plate and guided toward the adjacent treatment chamber 11 as shown by arrow B.
The reduced grains are threshed again in the handling cylinder 12 and then crimped in the crimp net 13.
After that, it is returned to the rocking plate 15 of the sorting section 9 and subjected to the same sorting action as described above.

In this case, as with the above, a weak upward wind (in the opposite direction to arrow A in FIG. 2) blows as the lower-class handling cylinder 12 rotates, so the tapered part 20' and the switching valve 21 continuously form a Due to the action of the above-mentioned wind blowing through the passage, the discharge port 1
The No. 2 reduced product from 9' can be introduced into the treatment chamber 11 in a good manner.

As described above, according to the present invention, the discharge port 19' of the ceiling plate 20
The No. 2 reduced product of paddy and straw is selected for either the threshing section 7 or the sorting section 9 by the action of the switching valve 21 by operating the direction-changing taper part 20' provided at the side corner and the bundle 22. Since grains can be recycled, unprocessed materials can be completely disposed of, always adapting to grain conditions.

Moreover, since the switching valve 21 is provided along the longitudinal direction of the handling barrel 12, the No. 2 reduced product acceleratedly discharged from the No. 2 reducing cylinder 19 is mainly guided to the front part of the handling chamber 11. Therefore, the route through which the grains are sorted after being threshed by the handling cylinder 12 and then passing through the crimp net 13 and the rocking plate 15 becomes longer, and since the grains are thoroughly threshed, it is possible to perform sorting with a large throughput.

Moreover, in both cases when the switching valve 21 is opened and closed, the action of the taper portion 20' and the switching valve 21 makes it possible to smoothly guide the No. 2 reduced product to the handling chamber 11 or the rocking plate 15, respectively. .

Moreover, such an action can be easily performed by operating the bundle 22.

Furthermore, since the tapered part 20' on one side of the ceiling plate 20 functions to change the direction of the No. 2 reduced product that is accelerated and released, the structure is simplified without the need to separately provide components such as a guide plate.

Note that instead of the switching valve 21, it is also possible to provide a reed valve at the tapered portion 20' of the ceiling plate.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of a combine harvester to which the present invention is applied, FIG. 2 is a longitudinal cross-sectional view showing an embodiment of the second processing device according to the present invention, and FIG. 3 is a cross-sectional view thereof. 1... Traveling device, 2... Airframe, 3...
... Reaping section, 4 ... Conveyance device, 5 ...
...Driver's cab, 6...Feed chain device, 7
...Thresking section, 8...Paddy storage device, 9.
... Sorting section, 10 ... Straw discharge device,
11... Handling room, 12... Handling cylinder, 13.
...Crimp net, 14...Leakage chamber, 15
・・・・Swinging plate, 16・・・・No. 2 conveyor,
17...2nd gutter, 18...2nd thrower-119...2nd reduction tube, 19'...
Discharge port, 20...Ceiling plate, 20'...
Tapered portion, 21...Switching valve, 22...
bundle.

Claims (1)

[Scope of utility model registration request] A lower-class handling cylinder 12, a feed chain device 6 provided near one side of the threshing section ceiling plate 20 above it, and a second reduction mechanism having a discharge port 19' near the other side of the threshing section ceiling plate 20. It has a cylinder 19 and a switching valve 21 which is provided above between the leakage chamber 14 and the threshing section handling room 11 and returns the No. 2 reduced material discharged from the No. 2 reducing cylinder 19 to the threshing section handling room 11. In the combine harvester, the discharge port 19' of the threshing section ceiling plate 20
A tapered part 20' is provided at the corner of the side, and the switching valve 21 is extended along the longitudinal direction of the handling barrel 12 and can be opened to the handling chamber 11 side opposite to the tapered part 20'. The second processing device of the combine harvester.