JPH0357724B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a threshing device for a combine harvester, which is equipped with a reaping section and a threshing section, for example, and continuously reaps and threshes grain culms, in which a swinging sorting board is installed horizontally below the handling barrel, and In the structure in which a processing cylinder is provided near the rear end of the oscillating sorting machine, the processing cylinder or the processing receiving net below this is supported by a processing cylinder side plate, and the processing cylinder side plate is inserted into the machine side so as to be freely pulled out. A fixing guide pin is provided in the machine to facilitate cleaning and parts replacement by opening the rear side of the swing sorting board, and also to facilitate replacement and maintenance of the processing cylinder or processing receiving net. It is designed to simplify the work and allow for easy switching of rice, wheat, etc.
Moreover, in this case, the guide pin can be used to smoothly and easily attach and detach the processing cylinder and processing receiving net to the machine side, improving work efficiency, and reinforcing the guide pin when attaching it. It can be firmly attached as a member and its durability can be improved.

Embodiments of the present invention will be described in detail below based on the drawings.

Fig. 1 is a side view of the combine harvester, and Fig. 2 is a plan view of the same. In the figure, 1 is a truck frame to which a running drive transmission 2 is attached, and 3 is a drive sprocket installed on both sides of the truck frame 1 via a running drive sprocket 4. 5 is a machine base supported by the track frame 1; 6 is a threshing section with a feed chain 7 stretched on the left side and a handling cylinder 8 built therein; Machine stand 5
A reaping section supported at the front and equipped with a cutting blade 12 and a grain culm conveying mechanism 13, 14 a straw cutter facing the end of a straw removal chain 15, 16 a straw collection table, and 17 a movable member that drives each part of the combine harvester. An engine, 18 is a paddy tank that faces the grain lifting cylinder 19 and stores the grains taken out from the threshing section 6, 20 is a driver's seat 21
The driver's cab 20 is provided with side clutch levers 23, 23 and reaping and threshing clutch levers 24, 25 in front of the driver's seat 21, and the driver's cab 20 is on the left side of the driver's seat 21.
A traveling speed change lever 26 is installed on the inner side (a position opposite to the side where the operator gets on and off), and the grain culm is continuously harvested and threshed.

FIG. 3 is a cross-sectional side view of the threshing section 6, and FIG. 4 is a cross-sectional plan view thereof. In the figure, 27 denotes a handling chamber in which an axial flow type handling trunk 8 is mounted in the longitudinal direction of the fuselage;
8 is a handling room receiving net stretched below the handling room 27, 2
Reference numeral 9 denotes a swinging sorting board that is swingably supported in the front-back direction via swing links 30 and the like, and includes a feed pan 31 located below the receiving net 28 and a feed pan 31 located below the receiving net 28.
8, a chaff sheave 33 located below the dust exhaust port 32, and a sorting net 34 located below the chaff sheave 33.

Further, in the figure, numeral 35 is a fan that sends sorting air in the direction of the sorting net 34, and 36 is a fan that is installed inside the first sorting gutter 37 and takes out the grains into the paddy tank 18 through the grain lifting tube 19. Number conveyor, 38 is second sorting gutter 3
9 is an internally installed second conveyor which returns the second reduced material to the handling chamber 27 via the second reducing thrower 40; 8, a processing cylinder axially mounted on the left and right sides of the machine, 42 a processing receiving net 44 stretched below the processing cylinder 41 via guide plates 43, 43;
46 is a processing chamber cover that covers the upper part of the processing cylinder 41;
Reference numeral 47 denotes a dust separation plate having an arcuate end face horizontally suspended above the rear side of the processing cylinder 41, and 47 a third port formed at the rear of the processing cylinder 42 to discharge dust and straw waste from the processing cylinder 42 to the outside of the machine. , 48 is a fourth gutter installed above the processing chamber cover 44 so as to guide the waste straw carried out by the straw removal chain 15;
2 is equipped with a hollow cross-flow fan 41a and processing teeth 41b protruding from the outer periphery, and has receiving teeth 42a planted in the processing receiving net 42, and the suction side of the processing cylinder 41 is connected to a swing sorting board. At the rear end of 29, there is also a processing cylinder 41
The discharge side thereof is communicated with the third port 47.

Furthermore, processing cylinder side plates 49 and 50 allow the processing cylinder 41 and the receiving net 42 to be replaced, and only the processing receiving net 42 below the processing cylinder 41 is formed separately.
At the same time, a guide pin 51 is horizontally suspended approximately parallel to the axis of the processing cylinder 41, and the right machine side plate 5
2, and the other end of the guide pin 51 is made to face the mounting hole 54 of the left machine side plate 53 for inserting the processing receiving net 42. Then, the guide pins 51 are inserted into the respective side plates 49 and 50 so as to be freely extracted, and the side plates 49 and 50 with the processing receiving net 42 attached thereto are extracted from the attachment hole 54 to the left side of the machine body, and the receiving net 42 is removed. This involves cleaning the rice and replacing it with rice or wheat.

The present invention is constructed as described above, and when grain culms are continuously harvested and threshed, grains leaking from the receiving net 28 at the lower part of the handling chamber 27 are collected in the feed pan 31.
The paddy grains fall through the chaff sieve 33 and sorting net 34 to the first sorting gutter 37, and are taken out to the first paddy tank 18 via the first conveyor 36 and the lifting cylinder 19. Further, the straw debris falling from the receiving net 28 and the dust outlet 32 is sent to the rear of the upper surface of the chaff sheave 33,
The straw waste and grains with stems that are sucked and discharged by the cross-flow fan 41a of the processing cylinder 41 and discharged behind the chaff sheave 33 are introduced to the outer periphery of the processing cylinder 41, and are removed from the processing cylinder 41. The grains that are threshed between the teeth 41b and the lower processing receiving net 42 and are mixed with small straw waste, which is the second reduction product, are transferred from the receiving net 42 to the upper surface of the second sorting gutter 39. It is returned to the processing chamber 27 via the second conveyor 38 and the second thrower 40, and the processing cylinder 41
This cross-flow fan 41a discharges the straw waste from the third exit 47 to the outside of the machine.
The small dust and straw sent to the rear end of the chaff sheave 33 by the cross-flow fan 41 of the processing cylinder 41
It passes through the inside of a and is discharged from the third port 47 to the outside of the machine.

In addition, the oscillating sorting board 29 and each sorting gutter 37, 3
When cleaning 9 etc. and changing rice and wheat,
Remove the bolts fixing the machine side plate 53 and the processing barrel side plate 49, separate the processing barrel side plate 49 supporting the processing receiving net 42, and place the receiving net 42 on the left side of the machine outside the machine side plate 53. It is pulled out from the attachment hole 54, and is used to clean each sorting gutter 37, 39, etc., and to replace the processing cylinder 41 or receiving net 42 with a specification suitable for rice or wheat.

In the above-mentioned embodiment, the processing cylinder 41 and the receiving net 42 are separated and configured so that they can be taken out separately. It is also possible to have a structure in which these parts are removed from the machine as a whole.

As is clear from the above embodiments, the present invention provides a structure in which a swinging sorting board 29 is horizontally suspended below the handling cylinder 8, and a processing cylinder 41 is provided near the rear end of the swinging sorting board 29. A guide pin 51 is provided in the machine for supporting the processing cylinder side plates 49, 50 to support the processing cylinder 41 or the processing receiving net 42 below this, and for inserting and fixing the processing cylinder side plates 49, 50 into the main machine side so that they can be pulled out freely. By opening the rear side of the oscillating sorting board 29, cleaning and parts replacement can be easily performed, as well as replacement and maintenance work of the processing cylinder 41 and processing receiving net 42. In this case, the guide pin 51 allows the processing cylinder 41 and the processing receiving net 42 to be smoothly and easily attached to the main machine side. It is possible to improve the work efficiency by removing the processing cylinder 41 and the receiving net 42, and when installing the processing cylinder 41 and the receiving net 42, it is possible to attach and detach the processing cylinder 41 and the receiving net 42 by using a guide pin as a reinforcing member for strong installation. It also has remarkable effects in terms of structure, such as significantly improving durability.

[Brief explanation of drawings]

FIG. 1 is a side view of a combine harvester showing an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a sectional side view of the main part, and FIG. 4 is a sectional plan view thereof. 8... Handling cylinder, 29... Oscillating sorting board, 41... Processing cylinder, 42... Processing receiving net, 49, 50... Processing cylinder side plate, 51... Guide pin.

Claims (1)

[Claims] 1 In a structure in which an oscillating sorting board 29 is horizontally suspended below the handling cylinder 8 and a processing cylinder 41 is provided near the rear end of the oscillating sorting board 29, the processing cylinder 41 or the processing receiving net 42 below this Processing body side plate 49,5
0, and the processing cylinder side plates 49, 5
A threshing device characterized in that a guide pin 51 is provided in the machine for inserting and fixing a grain 0 into the machine so that it can be freely pulled out.