JPH06253668A - Combine harvester - Google Patents

Abstract

PURPOSE:To improve the selection performance by opening a discharge opening of the rear end part of a threshing chamber at a position behind the end part of a shaking grader so as to prevent waste culms discharged from the discharge opening from dropping on the shaking grader. CONSTITUTION:This combine is designed so as to discharge threshed waste culms already subjected to threshing treatment in a threshing chamber through a discharge opening 17 made on the rear end side of the threshing chamber 13 and equipped with a shaking grader 21 for receiving crops allowed to drop through a concave screen 14 and grading the crops while shaking and conveying them backward under the threshing chamber 13. The discharge opening 17 of the threshing chamber is opened at a position behind the end part of the shaking grader 21 and the rear end part of a second recovery flight 25 of a second receiving gutter 24 existing at the end part position and a position some behind the end part of the shaking grader is extended almost to the rear end part of the concave screen. The end part of a threshing cylinder 3 is extended backward from the rear end part 14a of the concave screen to a position corresponding to the discharge opening 17 and a threshing tooth 3a for treating waste culms is attached to the end of the extended part also.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention supplies threshing treatment while supplying the entire amount of harvested grain culms into a handling room equipped with a handling barrel that rotates around the longitudinal axis of the machine body and transferring it to the rear side in the axial direction of the handling barrel. This is a combine harvester-type culm-feeding combine harvester.

[0002]

2. Description of the Related Art Generally, in this type of combine, the grain culm, which is entirely supplied into the handling chamber, is transferred from the supply port side of the handling chamber to the discharge port side by the handling barrel while being transferred to the receiving net. Threshing is performed between the grains, and the grains, etc. that have been threshed are allowed to leak from the net to the lower swing sorting device, but the threshing culms such as shavings are at the rear end side of the handling room ) Is discharged to the outside from the outlet. However, conventionally, the discharge port of the handling chamber has faced above the terminal side of the swing sorting device. (See, for example, Japanese Utility Model Laid-Open No. 57-115857).

[0003]

According to such a conventional technique, the culms discharged from the discharge port of the handling chamber fall directly onto the rocking sorting device, and therefore the culms on the rocking sorting device. Was stagnation and deteriorated the sorting performance. The present invention has the following technical means for the purpose of solving the above problems.

[0004]

That is, according to the present invention, the supply port 16 is provided on the front end side of the handling chamber 13 in which the handling barrel 3 is internally mounted, and the whole amount of the grains to be removed supplied is rotated by the rotation of the handling barrel 3. Threshing while transferring it toward the rear in the axial direction of the handling cylinder, letting threshed grains leak downward from the receiving net 14, and discharging threshing culm from the discharge port 17 provided at the rear end side of the handling chamber. In the lower part of the handling chamber 13, there is provided an oscillating sorting device 21 for receiving grain which has leaked from the receiving net 14 and sieving it while oscillating and transferring it rearward, and an outlet 17 of the handling chamber. Is an opening at a position rearward of the end of the rocking / sorting device 21 and is located at a rear end of the rocking / sorting device and a position slightly rearward of the end of the rocking / sorting device. Extend the rear end of the plate 25 to near the rear end of the receiving net,
The handling barrel 3 extends rearwardly from the rear end portion 14a of the receiving net to a position corresponding to the discharge port 17, and at the extended end portion, the treatment tooth 3a for treating culm.
Is provided.

[0005]

When all of the cut grain culm is put into the handling chamber 13 from the pre-reaping processing section and fed into the handling chamber 13, the grain culm is transferred from the supply port 16 side to the discharge port 17 side by the handling barrel 3. While being subjected to threshing, it undergoes a threshing action with the receiving net 14 to be shredded. The threshed grains and the like are leaked from the receiving net 14 onto the swing sorting device 21 below, and the threshing culms such as shavings are swing-sorted from the discharge port 17 on the terminal side of the handling chamber 13. From the end of the device 21, it is quickly discharged rearward and dropped.

[0006]

As described above, according to the present invention, since the culms discharged from the discharge port of the handling chamber do not fall directly onto the rocking sorting device, stagnation of straw debris on the rocking sorting device and There is no clogging, and it is possible to prevent clogging due to the intrusion of long straw into the No. 2 gutter, and to improve the sorting performance.

Since the treating teeth for treating the culm are also provided at the end of the handle barrel corresponding to the discharge port, the culm sent rearward from the rear end of the receiving net is directed downward from the discharge port. It can be ejected and dropped vigorously and threshing can be performed efficiently.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. On a machine body 2 equipped with a crawler-type traveling device 1, a threshing device 4 equipped with a handling cylinder 3 that rotates around a longitudinal axis of the machine body is mounted, and in front of it a standing culm culm of a field is sown. Divider-5. Reel 6 for scraping back the weeded grain culm backward ・ Mowing device 7 for mowing the scraped grain culm ・ Auger 8 for collecting the harvested grain culm to the center side and sending it backward
A reaping pretreatment unit equipped with a carrier device 9 that takes up the grain culms sent to the rear and scrapes and conveys the grain culm to the threshing device 4 is provided.

The transfer device 9 includes the auger 8 and a beater.
A net 11 that can leak grain is stretched between the bottom and
A rotor 12 having a plurality of protrusions 12a that rotate around the axis of the horizontal axis is arranged thereon and is arranged so that grain culms can be scraped up and conveyed between the rotor 12 and the leak net 11. The threshing device 4 is mainly composed of a handling cylinder 3 having treated teeth 3a and a handling chamber 13 for internally mounting the handling barrel 3. The handling chamber 13 is composed of a lower receiving net 14 and an upper cover 15. At the same time, the harvested grain culms that are entirely put into this handling chamber are transferred from the side of the supply port 16 opened on the front side toward the side of the discharge port 17 opened on the rear side in the axial direction of the handling barrel and the net 14. It is configured to thresh between.

The sorting device 18 is provided with an oscillating sorting device 21 in the sorting air passage 20 through which the sorting air from the compressed air Karamoto 19 passes, and mainly receives the grain that has leaked from the receiving net 14 of the handling chamber 13 and moves backward. It is configured to perform sieving and selection while swinging and transferring to. The sorting wind by the above-mentioned compressed draft Kara 19 is blown out rearward from the terminal end of the swing sorting device 21. The oscillating sorting device 21 has its end portion extending rearward to near the lower end of the rear end portion 14a of the receiving net 14.

The outlet 17 of the handling chamber is constructed so as to open at a position rearward of the end of the rocking / sorting device 21. The handling cylinder 3 has the end portion at the receiving net 1
4 extends rearward from the rear end portion 14a to a position corresponding to the discharge port 17, and a treatment tooth 3a for treating the culm is provided in the extension portion of the handling cylinder.

Reference numeral 22 denotes a fried helix, which is the leakage net 11
The grain that has leaked out of the container is configured so that it can be conveyed to the sorting device 11 by fried grain. In the figure, 23 is the first gutter and 24 is the second gutter. The rear end 25a of the No. 2 recovery receiving plate 25 of the No. 2 gutter 24 is located slightly rearward of the end of the rocking sorting device 24, and is rearward to a position near the lower position of the net rear end 14a. Has been extended to.

[Brief description of drawings]

FIG. 1 is a cut side view of a combine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Traveling device 2 ... Airframe 3 ... Handling body 4 ... Threshing device 5 ... Divider 6 ... Reel 7 ... Mowing device 8 ... Auger 9 ... Conveying device 10 ... Beater 11 ... Leakage net 12 ... Rotor 13 ... Handling room 14 ... Receiving net 15 ... Cover 16 ... Supply port 17 ... Discharge port 18 ... Sorting device 19 ... Pressurized Kara Minou 20 ... Sorting air passage 21 ... Oscillating sorting device 22 ... Fried grain spiral 23 ... No. 1 gutter 24 ... No. 2 gutter 25 ... No. 2 collecting support plate

Claims (1)

[Claims] 1. A supply port 16 is provided on the front end side of a handling chamber 13 in which the handling barrel 3 is internally mounted, and the whole amount of grain to be fed supplied by the rotation of the handling barrel 3 is directed rearward in the direction of the handling barrel axis. Threshing while transferring, let the threshed grain leak downward from the receiving net 14, and the threshing culm is the discharge port 1 provided at the rear end side of the handling chamber.
7, a swinging and sorting device 21 is provided below the handling chamber 13 for receiving grain that has leaked from the receiving net 14 and swinging and transferring it backward while sorting the grain. The discharge port 17 is opened at a position rearward of the end of the rocking sorting device 21, and is located at the end of the rocking sorting device and the second gutter 24 of the second gutter 24 located slightly behind the end of the rocking sorting device. The rear end of the recovery receiving plate 25 is extended to the vicinity of the rear end of the receiving net, and the handling cylinder 3 extends its end from the rear end 14a of the receiving net to a position corresponding to the discharge port 17. A combine, which extends rearward and is provided with processing teeth 3a for processing culms at the extended end as well.