JP2001197824A - Dust-discharging unit for threshing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inhibit the increasing tendency of dusting loss in the dust treatment because the dust treatment chamber of the conventional style has only the working chamber and the treatment capacity is limited in the threshing machine. SOLUTION: In order to overcome the weak point, the following countermeasure has been taken. The second treatment chamber 4 bearing the second treatment drum 3 and the first dusting chamber 6 bearing the first dusting drum 5 are mounted on the outside of the threshing chamber 2 from which the sorting net 1 is extended on the outer periphery. The second dusting chamber 8 bearing the second dusting drum 7 is arranged above the first dusting chamber 6 and the second treatment chamber 4, further on the outside of the sorting net 1 that constitutes the threshing chamber 2. In the second dusting chamber 8, the dusting mixture is fed from the middle part of the threshing camber 2. In the first dusting chamber, the dusting mixture is fed from the rear end of the threshing chamber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust processing apparatus for a threshing machine, and belongs to the technical field of agricultural machinery.

[0002]

2. Description of the Related Art Conventionally, for example, a threshing machine mounted on a combine has a dust processing chamber having a dust processing cylinder along a handling chamber having an interior shaft mounted thereon in order to increase the dust processing capacity. Are provided in communication with each other, and the dust that has not been processed in the handling room is taken over and the dust is discharged.

[0003]

In the above-described conventional dust processing chamber, when the unprocessed dust in the handling chamber is supplied through a transfer port, the rotating dust processing chamber is rotated. Although the configuration is such that the processing is performed by the drum, this type of conventional configuration has a single dust processing chamber, and thus has a limitation in the processing capacity of the dust. For this reason, the handling room supplies the unprocessed dust to the dust treatment chamber and may also discharge the dust to the sorting chamber, and there is a problem that the dust loss such as the third scattering increases. . Further, when a large amount of unprocessed dust is supplied from the handling chamber, the dust processing chamber has a problem that the processing capacity cannot keep up and the dust is discharged with insufficient processing.

[0004] In addition, an object to be processed sent from the handling chamber to the dust treatment chamber sometimes becomes clogged near the transfer portion.

[0005]

SUMMARY OF THE INVENTION The present invention takes the following technical means in order to solve the above-mentioned problems. That is, in the first aspect of the present invention, the second processing chamber 4 having the second processing cylinder 3 and the first dust processing cylinder 5 are provided outside the handling chamber 2 in which the sorting net 1 is provided on the outer periphery. A first dust treatment chamber 6 is provided, and at a position above the first dust treatment chamber 6 and the second treatment chamber 4 and outside the sorting net 1 constituting the handling chamber 2, A second dust treatment chamber 8 having a second dust treatment cylinder 7 is disposed and provided, and the second dust treatment chamber 8 is configured to be supplied with dust from an intermediate portion of the handling chamber 2. The first dust treatment chamber 6 is a dust treatment device of a threshing machine in which dust is supplied from the end of the handling chamber 2.

According to the second aspect of the present invention, the rotation peripheral speed of the handling cylinder 11 in the handling chamber 2 is limited to the first
2. The dust processing apparatus for a threshing machine according to claim 1, wherein the rotating peripheral speed of the second dust processing cylinder 7 is lower than the rotating peripheral speed of the second dust processing cylinder 7.

[0007]

The present invention is constructed as described above.
According to the first aspect of the present invention, as for the dust discharged from the handling room, the one containing a large amount of grains is supplied to the second dust treatment chamber for processing, and the waste having a large amount of straw waste is processed. Is supplied to the first dust treatment chamber to be subjected to dust treatment. Therefore, the dust generated in the handling room is properly processed while being shared in the two dust processing chambers, and has a feature that the dust loss to the outside of the machine can be extremely reduced.

According to the second aspect of the present invention, clogging can be prevented when an object to be processed is sent from the handling chamber to the dust processing chamber.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. First, as shown in FIGS. 1 to 5, the threshing machine 10 forms a handling room 2 by extending a sorting net 1 along a periphery of a handling cylinder 11 around the handling cylinder 11 and a lower portion thereof. A sorting room 12 is provided. The feed chain 13 is, as shown in FIG. 3 and FIG.
The spikes of the cereal stalks holding the stock are inserted into the handling chamber 2 from the handling port 14 and transported.

As shown in FIG. 1, the sorting chamber 12 is provided with a swing sorting shelf 15 on the upper side so as to be swingable.
Below that, in order from the best side in the sorting direction,
, And the first transfer spiral 17 and the second transfer spiral 18 are arranged respectively. The threshing machine 10 is provided with a second processing chamber 4 and a first dust processing chamber 6 behind the handling chamber 2 as shown in FIGS. 1, 2 and 4. And
The second processing chamber 4 feeds and collects the second product collected by the second transfer spiral 18 by the second fryer 19, and the second processing is performed by the second processing cylinder 3 which is shafted inside. It is configured to perform the function. In the case of the embodiment shown in the drawing, the second processing chamber 4 reprocesses the supplied second product while transporting the supplied second product to the front side in the direction opposite to the threshing transport direction of the handling drum 11 to reprocess the processed product. It is configured to sequentially leak into the sorting chamber 12.

Next, the first dust processing chamber 6 is shown in FIGS.
And a transfer port 20 opened at the start end as shown in FIG.
Is communicated with the terminal end of the handling chamber 2, and a leakage frame 21 for the processed material is provided in the middle part in a stretched manner. The body 5 is constructed by mounting an interior shaft. The first dust treatment cylinder 5 is provided with a treatment blade on the outer peripheral surface to treat dust with rotation.

Therefore, the first exhaust processing chamber 6 includes the handling cylinder 1
In this configuration, the unprocessed material that has been carried around while being threshing by 1 and reaches the terminal portion of the handling chamber 2 and has not fallen from the exhaust port of the handling chamber 2 to the sorting chamber 12 below is inherited and subjected to threshing again. ing. Therefore, the first dust treatment chamber 6 treats dust containing a relatively large amount of straw waste.

[0013] Then, the first dust processing cylinder 5 and the second processing cylinder 3
In the case of the embodiment shown in the drawings, the components are integrally formed so as to be simultaneously driven to rotate. Next, the second dust treatment chamber 8
As shown in FIG. 1, FIG. 2, FIG. 4 and FIG.
Outside the second processing chamber 4 and the first exhaust processing chamber 8
Are arranged in a state of straddling the upper position.
Thus, as shown in FIG. 1 and FIG. 2, the second dust processing chamber 8 includes the second half of the second processing chamber 4 and the first dust processing chamber 6.
And the second half of the dust treatment cylinder 7 is mounted on an interior shaft. And the second dust treatment cylinder 7 is
In the case of the embodiment, the spiral processing blade is provided on the outer peripheral surface. However, the present invention is not limited to this, and a normal processing blade (equivalent to the processing blade of the first dust processing cylinder 5) may be provided. Be free.

The second end of the second dust treatment chamber 8 communicates with the start end of the second dust treatment chamber 8 to the intermediate portion of the handling chamber 2 through the transfer port 23, receives the dust containing a large amount of grains, and has the separation chamber at the end. The dust is exhausted from a dust outlet 24 opened to the air outlet 12. Then, in the second dust treatment chamber 8, the treated matter that has been processed in the room leaks downward from the sorting net and falls into the lower second treatment chamber 4 or the first dust treatment chamber 6. Then, the mixture is brought into a mixed state and finally dropped into the sorting chamber 12. And
The dust outlet 24 of the second dust processing chamber 8 is, as shown in FIG.
It is configured to open laterally so as to bypass the first dust processing chamber 6 located on the lower side, and to discharge dust to the sorting chamber 12 from the straw conveying passage side. Then, as shown in FIG. 5, the shielding plate 25 is attached to the outside of the dust outlet 24 and is provided in a hanging state. The shield plate 25 is separated downward so that the dust is not mixed into the straw. It is configured to be able to fall.

With such a configuration, the shielding plate 25 can shield the waste and the dust without mixing, so that the sorting is good and the waste is eliminated (mixing the waste with the straw). The fourth loss that is discharged can be eliminated). Next, the transmission mechanism 26 of the threshing machine 10 will be described.

First, as shown in FIGS. 2 and 3, the transmission mechanism 26 is driven by an engine 27 to a belt 28 and a pulley 29.
, The rotational power taken out is sequentially distributed to the handling cylinder 11, the second processing cylinder 3 (the first dust processing cylinder 5), and the second dust processing cylinder 7, and transmitted. That is, as shown in FIG. 3, the handling cylinder shaft 30, the second processing cylinder shaft 31 (first dust processing cylinder shaft), and the second dust processing cylinder shaft 32 have three axes in the case of the embodiment. Rotate in the same direction (clockwise) as shown by the arrow in FIG.

Therefore, the threshing machine 10 is characterized in that the vibration generated by the rotation is relatively small. Further, in the first dust treatment chamber 6 and the second dust treatment chamber 8, the dust discharged from the respective dust outlets 22 and 24 is moved to the left side of the lower swing sorting shelf 15. It is possible to improve the selection while maintaining a state where it is dropped to the position and separated from the leakage from the handling chamber 2.

The handling cylinder 11, the first dust treatment cylinder 5, and the second dust treatment cylinder 7 determine the respective peripheral speeds of the handling cylinder 11 <
The transmission mechanism is configured to rotate while maintaining the speed relationship of the second dust processing cylinder 7 <the first dust processing cylinder 5. In other words, the first dust treatment cylinder 5 has a higher peripheral speed because it is necessary to properly treat dust containing relatively a lot of straw waste, and the second dust treatment cylinder 7 has Since a large amount of grains are contained in the dust, the peripheral speed is configured to be low in order to treat them without damaging them.

The first dust processing cylinder 5 and the second dust processing cylinder 7 have a longer length when compared with the overall length, and have a longer diameter when compared with the diameter. Is made longer. Next, the operation will be described.

First, the threshing machine 10 supplies the harvested grain culm to the starting end of the feed chain 13 and starts conveying the grain culm. The grain culm is moved from the spout 14 to the handling chamber 2 through the spout 14. The threshing action is started while being inserted and transported. In this way, the culm is fed to the handling chamber 2 from the handle 14 while the stock is clamped and fed by the feed chain 13, and is subjected to threshing by the rotating handling cylinder 11. The threshed material is carried around by the rotating handling drum 11 and further leaks from the sorting net 1 while undergoing the threshing process to reach the swinging sorting shelf 15 of the sorting room 12 to perform the swinging sorting operation. receive.

In the middle part of the handling chamber 2, dust containing a large amount of grains is supplied to the second dust processing chamber 8 via the transfer port 23 and is rotating. 7 undergoes processing action. In the second dust processing chamber 8, of the processed materials, those that can leak from the sorting network around the lower side fall into the lower second processing chamber 4 and the first dust processing chamber 6. It is mixed with the processed material in each of the processing chambers 4 and 6 and processed together, and falls into the lower sorting chamber 12.

In this case, the processed material leaking from the first half to the lower second processing chamber 4 contains a large amount of kernels, and the second dust processing chamber 8 contains a large amount of kernels. One dust treatment chamber 6
The processed material that leaks into the area has a large amount of straw waste and the like. In this way, the dust is leaked to the outside while being treated by the second dust treatment cylinder 7 in the second dust treatment chamber 8, but the remaining dust is carried around until the end. The dust is discharged from the port 24 into the sorting chamber 12.

At this time, the dust is guided by the inner surface of the shielding plate 25 and falls downward, so that there is no danger of the dust being stuck in the straw being conveyed outside. And the sorting object is
It reaches the swing sorting shelf 15 and is sequentially transported in the direction of the shelf to reach the chaff sieve, where the grains leak and are separated and separated from long straw etc. by the wind sorting action of the sorting wind. Then, the exhausted dust is separated into a dust reaching the suction dusting device and a dust reaching the shelf top rack of the swing sorting shelf 15, and is discharged outside the machine.

On the other hand, the unprocessed material in the handling room 2 reaches the terminal end of the handling room 2 except for the one that has leaked into the sorting room 12 while being carried around by the rotating handling cylinder 11 and is discharged as dust. It is sent to the transfer port 20 side. At that time, the first dust treatment cylinder 5
Starts the scraping processing action of the dust whose start end portion has reached the rotary swaging area into the first dust processing chamber 6.

The dust discharged into the first dust processing chamber 6 in this manner is subjected to the processing action of the first dust processing cylinder 5 and sequentially leaks from the opening of the leak frame 21 to the sorting chamber 12. Then, when the dust reaches the final exhaust port 22, all of the dust is exhausted to the sorting chamber 12 and undergoes the sorting operation. As described above, the objects to be sorted are sorted while undergoing the synergistic action of the oscillating sorting action and the wind sorting action by the sorting wind, and sorted into the first thing (fine granules), the second thing, and the dust. Separated, the first thing falls on the first transfer spiral 17 and is collected and harvested outside the machine, and the second thing is fried from the second transfer spiral 18 by the second frying device 19 and the second processing chamber. 4, the dust is discharged by the suction / discharge device, and the straw dust reaching the storage rack is discharged from the shelf to the outside.

During such a series of threshing and dusting treatment operations, the second dusting treatment chamber 8 separates and removes dust containing a large amount of grains from the intermediate portion of the handling chamber 2, Grains (mainly dropped and supplied to the second processing chamber 4) processed by the dust processing cylinder 7 and straw waste (directly dropped into the sorting chamber 12 from the first dust processing chamber 6 and the dust outlet 24), etc. It performs the dust treatment. Therefore, the threshing machine 10 can reduce the burden on the handling room 2 and further promote the threshing process.
The amount of dust sent to the subsequent first dust processing chamber 6 is also smaller than in the conventional case, and has a feature that the load on the first dust processing cylinder 5 can be significantly reduced. Therefore, the configuration of the present invention has an advantage that the accuracy of the dust removal processing can be increased as compared with the related art, and good sorting with less dust loss can be performed.

Another Embodiment 1 Next, another embodiment 1 will be described with reference to FIGS. Another embodiment 1 relates to a dust outlet 41 of a dust processing chamber 40, in which a first configuration example is configured to move toward a Glen tank 42 side and discharge dust from a rear portion, and a second configuration example is configured to discharge dust. The dust is discharged onto the crawler 43, transported forward by the crawler 43, and stepped (embedded) into the field scene.

First, as shown in FIG. 8, a dust processing chamber 44 is provided with a dust processing cylinder 44 and a transfer port 45 formed at the start end thereof.
Is provided to communicate with the terminal end of the handling chamber 46, and the dust discharge port 41 is opened on the Glen tank 42 side of the terminal end. Therefore, the dust processing chamber 40 is, as is well known,
It is configured to perform the dust removal process by inheriting the dust remaining in the handling chamber 46. In addition, in FIG.
48 is a second processing room, and 49 is a straw cutter.

FIGS. 6 and 7 show a first configuration example.
As shown in the figure, a straw guide plate 50 is provided outside the dust outlet 41, and the dust discharged from the dust processing chamber 40 is moved to the Glen tank 42 side immediately after the threshing machine. It is configured to discharge dust to the position where it is located. As shown in FIG. 9, the second configuration example is a cylindrical discharge guide plate 5 continuous with the dust outlet 41.
0 facing the upper part of the crawler 43, and
It is configured to be placed on the rack 43. Reference numeral 51 denotes a swing sorting shelf.

According to the first embodiment, in the first embodiment, the dust discharged from the dust outlet 41 is moved to the Glen tank 42 side of the threshing machine by avoiding the area immediately behind the threshing machine. In the case of the second configuration example, the dust is dropped on the crawler 43 and transported to the front side, and the crawler 43 is used to step (embed) in the field scene. be able to.

As described above, in any of the first and second embodiments, the dust discharged from the dust processing chamber 40 is discharged to a position other than right behind the threshing machine. It has the feature that it does not hinder the dust discharge action (dust discharge action from the sorting chamber) from the dust outlet (behind the swing sorting shelf 51).

Second Embodiment Next, a second embodiment will be described with reference to FIGS. The second embodiment is different from the first embodiment in that the dust cover
61. First, the pre-cutting device 60
As is widely known, a weeding rod 62 at the front lower position, a cereal stem raising device 63 above, a reaper 64 at the lower position, and a cereal stem conveying device 65 extended upward at the rear. In this configuration, the culm in the field is harvested and transported to and supplied to the threshing machine 66 at the rear.

As shown in the drawing, the dust cover 61 covers the upper part of the pre-cutting device 60 so as to cover it, and the front part is attached to the upper part of the grain stem raising device 63, and the rear part is the threshing machine 66. It extends to the side. In addition, the side cover 67 is configured to cover the side surface of the pre-cutting treatment device 60 to enhance the dustproof effect.

As shown in FIGS. 10 to 12, the dustproof cover 61 has a notched tip passage 68 at a position where the tip of the grain stem passes at the upper position of the grain stem raising device 63.
Is formed. Since the second embodiment has the above-described configuration, dust such as straw waste generated by the pre-cutting device 60 during the cutting and threshing operation is compared with the dust-proof cover 61 to prevent the dust from scattering to the outside. A clean working environment can be created. The dustproof cover 61 forms the notch-shaped spike passage 68 at a position where the spike portion of the cereal stem that is caused by the cereal stem raising device 63 and conveyed backward passes therethrough. This has the advantage of preventing head shedding, reducing head loss and eliminating transport delays.

If the carrier 70 is installed on a dust cover 61 as shown in FIG. 13, it is convenient to transport paddy bags and the like.

[Brief description of the drawings]

FIG. 1 is a sectional side view of an embodiment of the present invention.

FIG. 2 is an exploded internal plan view of the embodiment of the present invention.

FIG. 3 is a front view of the embodiment of the present invention.

FIG. 4 is an embodiment of the present invention and is a cross-sectional view taken along line S ₁ -S _{1 of} FIG. 1;

[5] A embodiment of the present invention, a S ₂ -S ₂ line sectional view of FIG.

FIG. 6 is a rear view of the combine showing the inside of another embodiment 1 of the present invention.

FIG. 7 is a sectional side view of another embodiment 1 of the present invention.

FIG. 8 is a plan view of a combine showing the inside of another embodiment 1 of the present invention.

FIG. 9 is a sectional side view of another embodiment 1 of the present invention.

FIG. 10 is a perspective view showing another embodiment 2 of the present invention.

FIG. 11 is a perspective view of another embodiment 2 of the present invention.

FIG. 12 is a cut side view of a second embodiment of the present invention.

FIG. 13 is a second embodiment of the present invention and is a perspective view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sorting net 2 Handling room 3 Second processing cylinder 4 Second processing chamber 5 First dust processing cylinder 6 First dust processing chamber 7 Second dust processing cylinder 8 Second dust processing chamber 11 Threshing machine. 12 Sorting room 25 Shielding plate 26 Transmission mechanism

Claims (2)

[Claims] A second processing chamber having a second processing cylinder and a first dust processing chamber having a first dust processing cylinder outside a handling chamber having a sorting screen stretched around an outer periphery thereof. And a second dust treatment cylinder at a position above the first dust treatment chamber 6 and the second treatment chamber 4 and outside the sorting net 1 forming the handling chamber 2. A second dust treatment chamber 8 having a first dust treatment chamber 8 is disposed and provided, and the second dust treatment chamber 8 is configured to be supplied with dust from an intermediate portion of the handling chamber 2. 6 is the handling room 2
A dust treatment device for a threshing machine configured to supply dust from a terminal end of the threshing machine. 2. The rotation peripheral speed of the handling cylinder 11 in the handling chamber 2 is configured to be lower than the rotation peripheral speed of the first dust treatment cylinder 5 and the rotation peripheral speed of the second dust treatment cylinder 7. 2. The dust processing apparatus for a threshing machine according to claim 1, wherein: