JPS58165711A - Combine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combine harvester mainly used for harvesting rice and wheat, and particularly to a combine harvester in which the sorting section of the threshing 1 sorting mechanism is improved.

There is a conventionally well-known reaping mechanism that is equipped on a traveling vehicle body and that harvests the crops that are planted in the field (1-), and a mechanism that inherits and threshes the crops that have been harvested by the reaping mechanism. In a combine harvester having a transport mechanism for transporting and supplying grains, and a threshing 2 sorting mechanism for threshing and sorting the crops fed to the transport mechanism, the sorting section of the threshing 9 sorting mechanism usually has a
It has a swinging sorting shelf, which complicates its drive FIJ mechanism, and the entire machine is affected by the vibrations caused by the swing, which can cause it to loosen or break, resulting in poor performance and durability. There were problems such as not only poor performance, but also increased pilot fatigue.

Therefore, in place of the conventional swing type sorting section, the present invention has a screw auger installed below the threshing section along the same axial direction as the threshing section, and a sorting receiving net provided in the receiving gutter of this auger. , by providing a dust removal device that is longer than the threshing section and above the auger that protrudes from the end of the threshing section, reduces machine vibration, improves sorting performance, improves durability, and simplifies the mechanism. It is an object of the present invention to provide a combine harvester which can reduce the fatigue of the cargo being operated and which solves the above-mentioned conventional problems.

The invention will now be described below with reference to the illustrated embodiments.

In FIG. 1 and FIG. 2, reference numeral 1 denotes a vehicle chassis having crawler-type running wheels 2. At the front of the chassis 1,
A reaping mechanism 6 is installed, which includes a weeding body 3 for weeding the crops planted in the field, a raising body 4 for raising the crops, a cutting blade 5 for reaping the roots of the crops, and the like. At the rear of the reaping mechanism 6, there is a conveying mechanism 7 that clamps and conveys the crops harvested by the reaping mechanism to the threshing and sorting mechanism 8.
is being pulled.

The threshing zero sorting mechanism 8 is provided with a handling chamber 9 in the upper part, in which a handling cylinder 10 is mounted almost horizontally with its axis in the traveling direction of the chassis 1, and the handling chamber 9 is A receiving net 11 is installed at the bottom of the handling room 9. On the side of the handling room 9, the conveyor #IS7
A foot chain 12 inherits the crops transported by the feed chain 12 and supplies the head side thereof to the handling chamber 9 and transfers it in the axial direction of the handling cylinder 10.
is provided. A sorting room 13 is provided below and behind the handling room 9, and in this sorting room 13, the receiving net 11 is
Directly below the sea urchin screw auger 14 as shown in Figure 2.
．． 1! 'i is arranged longer than the terminal end of the handling chamber 9 so as to extend to the terminal end of the sorting chamber 13. This auger 14.1
Sorted product receiving nets 16 and 17 are disposed in the lower receiving gutter portion of 5, and the terminal ends of these receiving nets 1B and 17 are open. A belt conveyor 18 for conveying from left to right in FIG. A first auger 19 is provided below the conveyance end, and a second auger 20 is provided below the rear half of the sorted product receiving net 16,17. 2
A No. 2 reduction thrower 21 is installed at the conveyance end of the auger 20 at the opening, and communicates with the rear end of the handling chamber 9.

Also, in the sorting room 13, there is a fan 22 located below the conveyor 18, and a screw auger 14 located at the rear of the handling room 9.
．． A suction fan 23 and an upper part 1 are installed above the terminal end of 15.
Dust port 24. There is a lower υ1 dust port 2 behind the auger 20 at the second port.
5 are provided respectively.

In the combine harvester configured in this way, as the machine moves forward, the grain culms of the crops planted in the field are divided by the weed cutting unit 3 and combed by the pulling unit 4. , cut with the cutting blade 5. Then, the harvested grain culm is held by the conveyor mechanism 7 and threshed.

The material is transported to the sorting mechanism 8 and transferred to the foot chain 12. The foot chain 12 clamps the stock part of the culm and moves the culm tip side toward the handling chamber 9, and during this movement, the grain culm machine part is IBM-grained by the handling cylinder 10. Most of the threshed grain in the handling room 9 leaks through the receiving net 11 and falls onto the front half of the screw auger 16, 17, and
The chaff remaining in the handling chamber 9 is discharged from between the terminal ends of the receiving net 11, and those with heavy specific gravity such as grains with ears fall onto the screw auger 16, 17, and during the transfer and sorting process, short culms with light specific gravity are , dust, etc. are selected by the pressure air of the fan 22 and the suction force of the suction fan 23 and are discharged from the upper dust outlet 24 to the outside of the machine.

Among the materials to be sorted that have leaked through the receiving net 11, the single grains leak through the front half of the sorting receiving net 16 and 17 and fall onto the conveyor 18 to the bell 1. The fine grains are sequentially dropped from the end of the conveyance and are sorted by the sorting air of the round fan 22, and only the fine grains are brought to the first mouth, where they are stored in a container or the like by the auger 19. The materials to be sorted that did not leak through the first half of the sorting receiving net 17 were mainly grains attached to the branches and stalks, cut ears, grains on the cob, etc.; Grain removal and sorting processing are performed by the transfer, and the sorting receiving net 16
．． What leaked from the second half of 17 was brought to the 2N port,
The grain is returned to the handling room 9 via the auger 20 and No. 2 return thrower 21, where it is threshed again.

In addition, among the materials to be sorted that have fallen from the rear half of the sorting receiving net 16 and 17, stem culms, dust, etc. with light specific gravity are removed by the round fan 22.
The dust is discharged out of the machine from the lower dust exhaust port 25 by the sorting wind.

In the above embodiment, the second reducing unit 21 is placed in the handling room 9.
This is connected to Scrico J-ga 14.
．． 15 may be communicated with the intermediate position in the longitudinal direction for reprocessing with screw augers 14 and 15.

In addition, the screw auger 14.15 is provided with a diffuser 26 or a diffuser 27 between the pitches of the screw teeth as shown in Figure 3 and Figure 1. In this case, clogging of the sorting receiving nets 16 and 17 is prevented, and the spiral movement of the objects to be sorted becomes smooth, improving its own sorting ability and reducing dust generated during this process. Suction fan 23 releases 1 blow! I! Bamboo ability increases.

4r) The location, number and combination of diffusers and other diffusers should of course be changed as appropriate depending on the content of the material to be sorted leaking from the threshing room, the type of crops, etc. It's also good.

Further, the number of screw augers is not limited to two as in the above embodiment, but may be one or more. Furthermore, the sorting nets 16 and 17 are shown in FIG.
- By making the mesh size of the part corresponding to the second opening A-ga 20 in the rear half larger than the mesh size of the front half, like 16a (17a),
If there are a lot of grains attached to the branches and spikes in the handling room 9,
Leakage to the auger 20 at the second port is improved, and processing is performed efficiently without clogging. Note that the mesh size of the receiving net 11 is slightly thicker than the mesh size of the sorting receiving nets 16 and 17.

As explained above, according to the combine harvester of the present invention, the threshing 1 sorting mechanism is provided with an axial type self-type threshing section and a lower side of this threshing section, and is arranged in the same axial direction as the threshing section. A screw auger arranged longer than the threshing section, a sorting section made of a net provided in the receiving gutter section of this screw auger, and a dust removal amount ( Since it is configured with a suction fan 23), when threshing the ears of rice, wheat, etc., the mechanism is simplified and the vibration of the machine is reduced, unlike the conventional combine harvester, which does not have an oscillating sorting device. becomes less,
The life of the machine is extended, the operator's fatigue is reduced, and fine particles such as dust generated in the sorting section are removed by the dust suction device, improving sorting performance. be.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of the entire J combine harvester showing an embodiment of the present invention, FIG. 2 is a longitudinal sectional front view of the main parts, FIGS. 3 and 4 are side views showing modified examples of the screw auger, and FIG. The figure is a side view showing a modified example of the sorted product receiving net. 1... Vehicle chassis, 2... Running wheels, 3... Reaping mechanism,
7... Conveyance mechanism, 8... Threshing 1 sorting mechanism, 9...
Handling room, 10... Handling cylinder, 11... Reception net, 13... Sorting room, 14.15... Screw A--ga, 16.
17... Sorted product receiving net, 18... Belt conveyor, 1
9...Auger at the 1st opening, 20...Auger 2 at the 2nd opening
1...2nd reduction thrower, 22...Karami fan, 23
...Suction fan, 24.25...Dust exhaust port, 26...
- Diffuser, 27... Diffuser. Patent applicant: Patent attorney representing Agricultural Mechanization Research Institute
Makoto Kobashi, Patent Attorney Susumu Murai 9-

Claims (1)

[Claims] A reaping mechanism that is installed on the traveling vehicle body and harvests the crops planted in the field, a transport mechanism that inherits and transports the harvested crops, and a threshing system 1 that performs threshing 9 sorting processing on the crops supplied from the transport mechanism. In the combine harvester equipped with a sorting mechanism, the threshing three sorting mechanism is provided with a threshing section consisting of an axial flow threshing type handling drum and a handling chamber, and below this threshing section, and is configured to thresh in the same axial direction as the threshing section. A screw auger arranged longer than the part, a sorting part consisting of a net provided in the receiving gutter part of this screw auger, and a dust evacuation device provided above the part of the screw auger that protrudes from the end of the threshing part. A combine harvester characterized by: