JPH0119656Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a threshing device for a combine harvester, which is equipped with, for example, a reaping section and a threshing section, and is configured to continuously reap and thresh grain culms. Conventionally, as shown in Japanese Patent Application Laid-Open No. 54-4744, there has been a technique in which a processing adjustment plate is disposed on an orthogonal processing cylinder.

However, since the above-mentioned conventional technology merely controls the falling grains or adjusts the air flow rate using the processing adjustment plate, there are cases where the grains are returned to the processing cylinder on the discharge side of the processing cylinder and rotated along with the processing cylinder. It is not possible to properly separate what is discharged from the rear, for example, it is easy to discharge straw waste with grains attached, and it is easy to get clogged with straw due to wet material being carried around to the processing cylinder. There was a problem.

However, the present invention provides a threshing device equipped with an orthogonal processing cylinder behind the processing cylinder, in which a processing adjustment plate is provided on the top plate above the processing cylinder so as to be slidable and adjustable.
It is characterized in that a processing adjustment plate is disposed between the processing cylinder and the dust suction fan at the rear.

Therefore, since a processing adjustment plate is provided on the upper side between the processing cylinder and the fan, heavy straw waste with grains attached can be returned to the processing cylinder by the guidance of the adjustment plate, while wet material can be separated from the processing cylinder. On the discharge side of the processing cylinder, what is returned to the processing cylinder and what is discharged to the fan can be properly separated, which improves the reprocessing function of the processing cylinder 2 and prevents straw clogging. This can be done easily.

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
14 is a straw cutter that faces the end of the straw removal chain 15; 16 is a straw collection table; 17 is an engine that drives each part of the combine; 18 2 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 cab equipped with a driver's seat 21 and a driving operation section 22; side clutch levers 23, 23 and a reaping and threshing clutch lever; 2
4 and 25 are provided in front of the driver's seat 21, and a traveling speed change lever 26 is installed inside the driver's cab 20 on the left side of the driver's seat 21, so that grain culms are 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 of the same. In the figure, reference numeral 27 denotes a handling chamber in which an axial-flow type handling barrel 8 is mounted in the longitudinal direction of the machine body; 2
8 is a crimp net stretched below the handling chamber 27;
Reference numeral 29 denotes a swinging sorting board that is swingably supported in the front and rear directions via swing links 30 and the like, and includes a feed pan 31 located below the crimp net 28 and a feed pan 31 located below the crimp net 28 and the dust exhaust port 32. The swinging sorting board 29 is constituted by the chaf sheave 33 located and the sieve wire 34 disposed behind the chaf sheave 33.

Further, in the figure, 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 via the grain lifting tube 19. Conveyor, 38 is the second sorting gutter 39
A second conveyor 41 is installed in the second conveyor and returns the second reduced material to the handling chamber 27 via the second reducing thrower 40, and a second conveyor 41 is connected to the handling cylinder 8 at the rear end of the swinging sorting board 29 above the second sorting gutter 39. 42 is a concave which is a receiving net disposed on the lower peripheral side of the processing cylinder 41, 43 is a straw discharging incisor provided on the concave 42, and 44 is the processing cylinder Torso 4
A dust suction/exhaust fan, which is a cross-flow fan, is installed diagonally above the rear part of the machine; 45 is a third port for discharging dust and straw to the outside of the machine via the fan 44; This is a fourth gutter installed above the processing cylinder 41 and the fan 44 to guide the waste straw to be carried out. In addition to taking out the paddy into the tank 18, the structure is such that waste straw is discharged by the straw removal chain 15 and straw waste etc. are discharged from the machine by the fan 44.

As shown in FIG. 5, a processing adjustment plate 49 having a triangular cross section is attached to the top plate 46a above the processing cylinder 41, which is the middle part of the fourth gutter 46, through a long hole 47 and a screw member 48 in the front-rear direction. A direction guide plate 50 for guiding the straw waste is installed in front of the adjustment plate 49 so as to be slidable and adjustable, and the adjustment plate 49 adjusts the processing amount in the processing cylinder 41. 8, the threshing material concentrated on the right side of the machine body is uniformly dispersed by the guide plate 50. In a threshing device equipped with an orthogonal processing cylinder 41 at the rear of the processing cylinder 8, a processing adjustment plate 49 is provided on a top plate 46 above the processing cylinder 41 so as to be slidable and adjustable. A processing adjustment plate 49 is disposed between them.

The present embodiment is constructed as described above, and when grain culms are continuously harvested and threshed, grains leaking from the crimp net 28 at the bottom of the handling chamber 27 are collected via the feed pan 31 and the chaff sheave 33. It fell into the number sorting gutter 37, the first conveyor 36 and the grain barrel 1.
The paddy is taken out to the tank 18 via the paddy 9. Further, the straw waste falling from the crimp 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 fan 44 and discharged behind the chaff sheave 33 are introduced into the outer periphery of the processing cylinder 41, and are transferred to the lower concave 42 by the processing cylinder 41. The grains are shredded between the concave concave 42 and the second sorting gutter 39, and the grains mixed with small straw waste, which is the second reduction product, fall from the concave 42 onto the upper surface of the second sorting gutter 39, and pass through the second conveyor 38 and the second thrower 40. At the same time, the straw waste in the processing cylinder 41 is fed to the fan 44, and the straw waste is discharged from the machine through the third port 45, while the straw waste is fan 35
The small dust sent to the rear end of the chaff sheave 33 by the
4 and is discharged from the third exit 45 to the outside of the aircraft.

Now, when the adjustment plate 49 is positioned at the position indicated by the solid line in FIG. The grains are returned to the processing cylinder 41 through a relatively wide gap 51 formed between the grains and the cylinder 41, and are subjected to a shedding process in the processing cylinder 41, while the adjustment plate 49 is positioned at the position of the imaginary line in the figure. In this state, the gap 51 is reduced and large or heavy straw waste is brought into contact with the inclined rear side surface 49b of the adjustment plate 49, thereby reducing the throughput of both processing cylinders 41. This can prevent accidents such as culm clogging.

As is clear from the above embodiments, the present invention provides a threshing device equipped with an orthogonal processing cylinder 41 behind the processing cylinder 8, in which a processing adjustment plate 49 is provided on the top plate 46 above the processing cylinder 41 so as to be slidable and adjustable. A processing adjustment plate 49 is disposed between the processing cylinder 41 and the rear dust suction fan 44. Since the processing adjustment plate 49 is provided on the upper side between the processing cylinder 41 and the fan 44, the grains are While the attached heavy straw waste can be returned to the processing cylinder 41 by the guide of the adjustment plate 49,
The wet material can be separated from the processing cylinder 41 and discharged in the direction of the fan 44, and the material to be returned to the processing cylinder 41 and the material to be discharged to the fan 44 can be appropriately separated on the discharge side of the processing cylinder 41. This has practical effects such as improving the reprocessing function of the processing cylinder 41 and easily preventing straw clogging.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is an overall side view of the combine, Fig. 2 is a plan view thereof, Fig. 3 is a sectional side view of the threshing section, and Fig. 4 is a plan view thereof. , FIG. 5 is an enlarged explanatory diagram of the main part. 8... Handling cylinder, 41... Processing cylinder, 46a... Top plate (fourth gutter), 49... Processing adjustment plate.

Claims (1)

[Scope of utility model registration request] In a threshing device equipped with an orthogonal processing cylinder 41 behind the processing cylinder 8, a processing adjustment plate 49 is provided on the top plate 46 above the processing cylinder 41 so as to be slidable and adjustable,
A threshing device characterized in that a processing adjustment plate 49 is disposed between a processing cylinder 41 and a dust suction fan 44 at the rear.