JPS5912029Y2 - Straw cutter discharge device in combine harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a straw cutter discharge device in a combine harvester.

That is, the dust collection and discharge in the sorting dust chamber at the rear of the threshing section and the prevention of dust particles in the No. 4 gutter section are effectively performed, and the straw pieces cut by the straw cutter at the rear are efficiently discharged by the dust collection and discharge air. By combining and discharging the collected dust and straw pieces, the collected dust can be discharged without being scattered, and the cut straw pieces can be discharged in a dispersed manner without clogging the lower part of the straw cutter. It is something to do.

Next, the embodiment shown in the drawings will be described.

FIG. 1 is a partially cutaway schematic side view of the combine harvester. In front of the threshing section A mounted above the crawler 7, there are a grass dividing plate 8, a pulling body 9, a cutting blade 10, and a star wheel 11. , a lower conveying chain 12, a tip conveying tine 13, etc., is installed and maintained.

In the threshing section A, there is a handling chamber 15 in which the handling barrel 14 is housed.
A supply port 16 is provided at the front of the lower part of the threshing section A, and a straw discharge port 17 is provided at the rear of the threshing section. Below the dust chamber 1 is a swing sorting body 2 extending from below the handling chamber 15.
0 rear stroke rack 4 is visible, a discharge port 21 is formed behind the terminal end 4a of the stroke rack 4, and a No. 1 conveyor 22 and a conveyor 2 are provided below the swinging sorting body 20. A number conveyor 23 is installed and guarded.

Further, a cross-flow fan B extending above the straw rack 4 and sucking dust is mounted above the sorting dust removal chamber 1, and above the cross-flow fan B is a No. 4 gutter which communicates with the straw removal port 17. 24, and one end 2 of the cross-flow fan B is extended outward from one side of the sorting and dust removal chamber 1 for a long time.

An engine room 3 is constructed by covering the engine E with a cover 25 on the side of the sorting and dust removal chamber 1, and as mentioned above, the end 2 of the cross-flow fan B extending to one side is connected to the engine room. At the rear of the cross-flow fan B, there are two parallel rotating shafts 26. A straw cutter C having the same conventional structure and having disk blades 27 and 27' installed at regular intervals on each of the straw cutters 26' and 26' is installed with a length that is approximately the same as the axial length of the cross-flow fan B. The straw cutter C is installed in the upper part of the sorting and dust removal chamber 1 so that the rear part 5 of the straw cutter C faces above the terminal end 4a of the straw rack 4.

Further, below the straw cutter C portion above the sorting dust exhaust chamber 1, there is a discharge plate 6 whose tip 6a approaches the discharge port 21.
is obliquely installed, and on the upper end of the discharge plate 6 is the cross-flow fan B.
A discharge port 28 is formed from which the discharge air blows out, and a discharge plate 6' is provided diagonally below the straw cutter C portion in the rear upper part of the engine compartment 3, and a discharge plate 6' is provided on the upper end of the discharge plate 6'. Discharge port 2 from which air discharged by the end 2 of the cross-flow fan B blows out
It takes the form of g.

29 is the feed chain, which is located at the threshing part A on the width center side of the machine.
The starting end 29a of the feed chain 29 is installed so as to approach the terminal end of the lower conveying chain 12, and the terminal end 29b of the feed chain 29 is a straw cutter. It is arranged so that it looks upward toward the middle in the longitudinal direction.

However, when working with a combine harvester, cross-flow fan B
The end 2 portion takes in air from inside the engine compartment 3 and connects it to the discharge port 28.
Since the air is blown out from ', the engine E can be cooled.

The grain culms that are harvested and transported at the front are connected to the feed chain 29.
The straw is threshed by the handling barrel 14 and discharged from the straw discharge port 17, and when the straw is fed from the top of the No. 4 gutter 24 to the straw cutter 〇, the straw rod is cut short by the straw cutter C. and are dropped onto the lower discharge plates 6, 6'.

When the shedding in the handling chamber 15 leaks through the crimp net 18 and straw waste etc. are discharged from the dust inlet 19, the oscillating sorter 2
While the straw waste is conveyed on the straw rack 4, the second one falls onto the second conveyor 23 below, and the dust is sucked into the cross-flow fan B and sent to the discharge port 2.
The straw waste discharged from the straw rack 8 and conveyed to the terminal end 4a of the straw rack 4 is directly sent out of the machine from the discharge port 21 as shown by arrow A.

At the same time, the straw cutter 〇 cuts the discharge plate 6,
The straw pieces falling onto 6' are transferred to the discharge port 2 by the cross-flow fan B.
8. The exhaust air discharged from 28' sends out the dust as shown by the arrow opening and opening', and blows it away from the exhaust port 21 in a dispersed manner. The dust merges with the cut straw pieces and is discharged outside the machine without being dusted.

In this way, the present invention allows the four rear straw racks of the swing sorting body 20 to be seen downward in the sorting dust removal chamber 1 behind the threshing section A from below the handling chamber 15, and the straw rack terminal end A discharge port 21 is formed at the rear of the section, and the suction side of the cross-flow fan B installed at the rear of the No. 4 gutter 24 in the sorting and dust removal chamber 1 is connected to the aforementioned No. 4 gutter 24 and the swinging sorting body. In a combine harvester having an opening so as to allow dust collection with 20 parts, a straw cutter 〇 is installed at a portion adjacent to the rear of the cross-flow fan B, and a straw cutter 〇 is installed below the cut straw discharge side of the straw cutter. A discharge plate 6 tilting rearward and downward toward the discharge port 21 is provided, and a discharge port 28 of the cross-flow fan B is opened at an inclined upper end of the discharge plate so as to discharge air along the slope of the discharge plate 6. Therefore, the cross-flow fan B effectively collects and discharges dust in the sorting dust removal chamber 1 and prevents dust from forming in the gutter 4, and the straw pieces cut by the straw cutter C are removed by a wide cross-flow fan. The dust can be discharged well by the dust collecting and exhausting air from the straw, and the combined discharge of the dust and the straw pieces prevents the dust from becoming dusty and can be discharged without clogging the area below the straw cutter C. It has the characteristic that it can be dispersed and discharged in the field and can be carried out suitably.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway schematic side view of the combine, FIG. 2 is a partially cutaway plan view, and FIG. 3 is a side view of the rear of the fuselage. The sectional view and FIG. 4 are plan views of the upper portion of the rear part of the fuselage. A... Threshing section, 1... Sorting and dust removal chamber, C... Straw cutter B... Cross-flow fan, 6... Discharge plate.

Claims (1)

[Scope of utility model registration request] The rear straw rack 4 of the swinging sorter 20 extending from below the handling chamber 15 is visible to the lower part of the sorting dust exhaust chamber 1 behind the threshing section A, and the discharge port 21 is located behind the end of the straw rack. At the same time, the suction side of the cross-flow fan B installed at the rear of the No. 4 gutter 24 in the sorting dust removal chamber 1 is capable of sucking dust from the No. 4 gutter 24 part and the swinging sorting body 20 part. In a combine harvester having an opening as shown in FIG.
A discharge plate 6 is provided below the cut straw discharge side of the straw cutter and is inclined rearward and downward toward the discharge port 21, and a discharge port 28 of the cross-flow fan B is provided at the inclined upper end of the discharge plate. A straw cutter discharge device characterized in that the discharge plate 6 is opened so as to discharge air along the slope of the discharge plate 6.