JPH0259682B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an automatic threshing machine used in a combine harvester or the like, and specifically relates to the structure of a threshing machine having a processing barrel.

(B) Prior art In general, a threshing machine is equipped with a processing barrel to further diffuse the straw waste generated in the handling chamber and separate the mixed grains. was installed parallel to the handling cylinder, and all the straw waste sent to the processing chamber was configured to fall once onto the oscillating sorter.

(c) Problems to be solved by the invention Therefore, based on the rotation of the processing cylinder, the dust such as straw waste that is aligned in the direction of rotation can be treated in the processing chamber by rotating the processing cylinder in the same direction. As a result, it is not possible to sufficiently disperse and loosen the dust particles, and the dust particles that have fallen from the processing chamber are transported and sorted by a sorter while being transported to the suction port or the third port of the suction fan. Therefore, if there is a large amount of dust, the transfer of the waste, especially in the upper layer, may become difficult, resulting in clogging, or the amount of dust returned from the second port may increase, and the third port may become clogged. There was a drawback that particles flying from the mouth increased.

(d) Means for solving the problem The present invention aims to eliminate the above-mentioned drawbacks, and as shown in FIG. A sink 27 is provided below the handling chamber, and a dust inlet 6 provided at the rear of the handling chamber communicates with the processing chamber 9 via a conveyor 7, and the processing cylinder 10 is arranged perpendicularly to the handling cylinder axis 2a. Further, the upper part of the processing barrel receiving net 11 is opened to form a dust exhaust port 12, and a suction fan 13 is disposed at the rear upper part of the processing chamber 9. A flow plate 1 is provided above the suction fan 13 and above the suction fan 13, respectively.
9a and 19b are installed, and these flow plates form a funnel-shaped No. 4 port 20 that flows down toward the dust exhaust port 12 portion, and the suction port 1 of the suction fan
3a and the dust exhaust port 12 are adjacent to each other and communicate with each other via a sorting space 15 having a lattice 21 below.

(E) Effect Based on the above-mentioned structure, the dust such as straw waste mixed with some grains from the threshed grains in the handling room 5 is sent to the processing room 9 via the conveyor 7, where it is processed. Rotation processing is performed in the cylinder 10. At this time, since the processing cylinder 10 has a rotation plane different from that of the processing cylinder 2, the dust is rotated transversely in its longitudinal direction, and the dust is dispersed and thoroughly loosened. Then, in the processing chamber 10, the receiving net 11
The long straw that does not leak from the net and the straw waste from the fourth port 20 are removed from the dust exhaust port 12 above the receiving net into the sorting space 15.
When passing through the air, the air is blown by the wind turbine 27 and is directly sucked into the suction port 13a, and is discharged to the outside of the machine by the suction fan 13.

(f) Examples Examples of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the automatic thresher 1 has a handling cylinder 2.
A receiving net 3 is arranged below and on the side of the handling cylinder 2 to form a handling room (see Fig. 2). Further, the lower rear end of the handling chamber 5 is opened to form a dust inlet 6, and a belt conveyor 7 is disposed at the part where the dust inlet 6 falls. On the other hand, a processing chamber 9 is disposed adjacent to the rear portion of the handling chamber 5, and the conveyor 7 extends to the processing chamber 9. In addition, a processing cylinder 10 is disposed in the processing chamber 9, supported by a shaft 10a extending perpendicularly to the axis 2a of the processing cylinder 2, and the processing cylinder 10 is arranged below and on one side thereof. A processing barrel receiving screen 11 is provided to cover the processing chamber 9 up to a predetermined height, so that the upper part of the processing chamber 9 is opened and serves as a dust exhaust port 12. A suction fan 13 is installed at the upper rear end of the threshing machine 1, that is, at the rear upper part of the processing chamber 9. It is arranged close to and in communication with the dust exhaust port 12. Further, as shown in FIGS. 2 to 4, a rail 16 and a feed chain 17 are disposed above one side of the threshing machine 1, and the feed chain 17 is configured to pass the grain culm to an input port at one end. That is, it can be transported from the tip of the handling cylinder 2 toward the empty canister at the other end. Further, a flow plate 19 is provided so as to be received below the conveyance culm in the processing chamber 9 and the upper part of the suction fan 13.
a, 19b are installed, and these flow plates 19
No. 4 port 2 configured in a funnel shape by a and 19b
0 is placed facing above the dust exhaust port 12 at the top of the processing chamber 9 (see FIG. 5). In addition, a grid 21 is fixedly installed below the sorting space 15 between the processing chamber dust exhaust port 12 and the suction fan suction port 13a.
Large pieces of dust such as ear scraps are prevented from falling by the grid 21, are sucked by the suction fan 13, are blown by the trough 27, and are directly sucked into the suction fan 13 from the dust outlet 12 through the space 15. will be included. In addition, an oscillating flow grain plate 2 is provided below the handling trunk receiving net 3.
2 is disposed, and furthermore, a swinging crimp net 23 is disposed at the lower end portion of the grain flow plate 22. A first opening 25 is provided below the crimp net 23, and grains are taken out from the first opening 25 via a helix 26 (see FIG. 3). Also,
A sludge 27 is provided below the grain board 22, and the main sorting air sent by the sludge 27 is the first
As shown by arrow A in the figure, it passes through the crimp net 23 and exits along the lower part of the receiving net 11 to the suction port 13a of the suction fan 13 in a substantially straight line. In addition, the crimp net 23 and the third port 2 at the rear lower part of the threshing machine 1
A chaff sheave 30 is arranged over 9,
A second port 31 and an auxiliary trough 32 are provided below the chaff sheave 30. The second port 31 is returned to the handling chamber 5 via the spiral and thrower 33, and the auxiliary sump 32 discharges waste on the chaff sheave 30 to the third port 29.

Since the present embodiment has the above-described configuration, the grain culms that are held and conveyed by the rails 16 and the feed chain 17 are threshed by the handling cylinder 2.
At this time, ear cuts, twig culms, straw debris, etc. accumulate in the handling chamber 5 along with the grains, but the grains and small debris accumulate in the receiving net 3.
leaks from the mesh and falls onto the oscillating flow grain plate 22,
Furthermore, it is sent to the oscillating crimp net 23. Then, the main sorting air A generated by the wind turbine 27 separates grains and small straw waste, and the grains fall into the first port 25, and the small straw waste is blown away and sucked into the suction fan 13. It is discharged through the slot 29.

On the other hand, ear cuts, twig culms, and large straw waste that are not leaked from the receiving net 3 of the handling room 5 fall from the dust inlet 6 along with a small amount of grains, and are transferred to the processing room 9 by the belt conveyor 7. At this time, the transfer speed of the conveyor 7 is set to be relatively fast, and once the dust transfer port 6
The dust discharged from the dust collector is not brought into the handling chamber 5 again, nor is it deposited on the conveyor 7, and is promptly sent to the processing chamber 9. and,
These dust particles are processed by the rotation of the processing cylinder 10, but since the processing cylinder 10 rotates in a direction perpendicular to the rotation of the processing cylinder 2, the straw waste etc. that are aligned in a predetermined direction by the processing cylinder 2 are removed from the processing cylinder 10. Since the grains are rotated in the transverse direction at 10, the straw waste is dispersed and thoroughly loosened, and the grains are further made into single grains. and,
Single grains, small ears of ears, straw waste, etc. leak from the processing trunk receiving net 11 and fall onto the crimp net 23, where they are sorted by the main sorting air A and the grains are transferred to the first opening 32. The straw waste etc. are blown away to the suction fan 13. On the other hand, large debris such as grains and long straws that do not leak out from the receiving net 11 are discharged from the dust outlet 12 at the top of the receiving net 11 into the sorting space 15, and even larger debris passes through the sorting space 15 and is collected in the rainwater. 27, it is sucked into the suction fan 13 from the suction port 13a and discharged from the third port 29, and items with heavy specific gravity such as grains fall from the selection space 15 through the grid 21 onto the chaff sieve 30. do. Then, the chaff sieve 30 shakes and separates the branch culms, etc., which are discharged from the third port by the auxiliary wind from the auxiliary sump 32, and a small amount of grain is handled from the second port 31 through the thrower 33. Returned to room 5. In addition, debris such as long straw and grains are collected from the flow plate 19 from the culm that has been conveyed by the feed chain 17 and passed through the handling chamber 5.
a, 19b, it falls from the fourth port 20 to the upper part of the dust exhaust port 12 of the processing chamber 9, and the straw waste is sucked into the sorting space 15 by the suction air of the suction fan 13, and is removed from the dust exhaust port. The grains are discharged from the third port 29 by the suction fan 13 along with the dust from the belt conveyor 12, and the grains fall into the processing chamber 9, where they are processed by the processing cylinder 10 together with the dust sent from the belt conveyor 7. .

(G) Effects of the Invention As explained above, according to the present invention, since the processing cylinder 10 is mounted on the shaft 10a perpendicular to the processing cylinder axis 2a, the dust from the handling chamber 5 is transferred to the processing cylinder 10. By processing in a transverse manner, the dust particles can be sufficiently dispersed and loosened, and the grains can be made into single grains. Furthermore, the upper part of the processing body receiving net 11 is opened and the dust exhaust port 1 is opened.
2, together with the arrangement of the suction fan 13, straw debris and the like can be effectively discharged from the dust outlet 12, and the circulation of straw debris and the like within the processing chamber 9 can be reduced. Further, flow plates 19a and 19 are provided above the processing chamber 9 and above the suction fan 13, respectively.
b was installed, and these flow plates formed a funnel-shaped fourth port 20 that flows down toward the dust exhaust port 12, so straw waste etc. from the fourth port 20 are sorted together with waste from the dust exhaust port 12. The dust is sent to the space 15, and the suction port 13a of the suction fan 13 and the dust exhaust port 12 are brought into close proximity and communicate with each other via the sorting space 15 in which a grid 21 is arranged below, and the air is further blown by the conduit 27. Since the flow was also made to flow into the sorting space 15, the dust exhaust port 1
The straw waste etc. discharged from the 2nd and 4th ports 20 are directly sucked into the suction fan 13 and discharged outside the machine, which greatly reduces the amount of straw waste that falls into the sorting body such as the chaff sieve 30, and prevents clogging. The amount of reduction from the second port 31 and the third port 2 can be prevented.
9 can be reduced. As a result of the above effects, the processing capacity of the processing chamber 9 can be increased, and the performance of the threshing machine 1 can be improved.

[Brief explanation of the drawing]

FIG. 1 is an overall side sectional view showing a threshing machine according to the present invention, FIG. 2 is a sectional view taken along the line of FIG. 1, and FIG.
The figure is a sectional view taken along the line in Figure 1, and Figure 4 is a cross-sectional view taken along the line in Figure 1.
FIG. 5 is a cross-sectional view taken along the line of FIG. 5, and a perspective view showing the dust exhaust port portion of the processing chamber. 1... Threshing machine, 2... Handling cylinder, 2a... Handling cylinder shaft,
5...handling room, 6...dust inlet, 7...carrier, 9...
...Processing chamber, 10... Processing cylinder, 10a... Processing cylinder shaft, 11... Processing cylinder receiving net, 12... Dust exhaust port, 13
... Suction fan, 13a... Suction port, 15... Sorting space, 19a, 19b... Flow plate, 20...
Exit 4, 21... Lattice, 25... Exit 1, 27...
...Tomi, 29...3rd exit, 31...2nd exit.

Claims (1)

[Claims] 1. A processing chamber is provided at the rear of the processing room containing the processing cylinder, a spool is provided below the processing chamber, and the processing cylinder is mounted in the processing chamber on an axis perpendicular to the processing cylinder axis. At the same time, a receiving net is arranged to cover the processing cylinder, an upper part of the receiving net is opened to form a dust exhaust port, and a suction fan is arranged at the rear upper part of the processing chamber. , Furthermore, flow plates are installed above the processing chamber and above the suction fan, and the funnel-shaped 4 flow plates flow down toward the dust exhaust port through these flow plates.
forming a screen port, and disposing a sorting space extending substantially horizontally between the suction port of the suction fan and the dust exhaust port, and disposing a grid below the sorting space, The processing chamber and the sorting space are arranged so that the wind from the stream flows directly to the dust outlet and also flows along the lower part of the receiving net to the sorting space. A threshing machine characterized in that straw waste etc. from the mouth are directly discharged by a suction fan.