JP2001086848A - Exhaust dust treatment apparatus for thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject apparatus designed to resolve such a problem that in a conventional exhaust dust treatment cylinder, long straw is entangled on the feed side of a rake-in screw, the extent of the entanglement gets greater, resulting in long straw's coiling around the initial end portion of the cylinder and hampering exhaust dust treatment action. SOLUTION: This exhaust dust treatment apparatus has such a scheme that, a thresher 6 is so designed that the initial end portion of an exhaust dust treatment chamber 4 with an exhaust dust treatment cylinder 3 axially set up inside is made to communicate, via an exhaust dust relay port 5, with the terminal end portion of a threshing chamber 2 with a threshing cylinder 1 axially set up inside; wherein at the initial end portion of the cylinder 3, the site faced on the relay port 5 is equipped with a screw 7 intended for the rake-in transfer of exhaust dust into the chamber 4, the screw 7 being designed to cut the tip of its feed side.

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, in a threshing machine mounted on a combine, in order to enhance the dust treatment capacity, a dust treatment chamber provided with a dust treatment cylinder is communicated with a treatment chamber in which a treatment cylinder is internally mounted. It is configured to take over the unprocessed dust in the handling room and perform the dust discharging process. Further, the dust processing cylinder is provided with a spiral at its start end to scrape the dust, and has a function of scraping the dust supplied from the handling chamber into the dust processing chamber and further sending the dust backward. Configuration.

[0003]

In the above-described conventional type, when the untreated dust in the handling chamber is supplied through the transfer port, the dust-treating cylinder is swept. The structure is such that the paper is conveyed backward while being swept into the dust treatment chamber by a spiral. The scraping spiral in this conventional type is
In order to focus on the scraping function and the feeding function, the leading end (edge) on the feeding side is formed in the radiation direction of the dust discharge processing cylinder, and has a shape with a large winding action.

[0004] In many cases, relatively long straw is mixed in the cut waste, and the long straw is entangled in a spiral and hardly separated. As described above, the conventional configuration has a problem that the long straw is entangled in the spiral and the amount thereof gradually increases and wraps around the dust processing cylinder, thereby hindering the dust processing action.

[0005]

SUMMARY OF THE INVENTION The present invention takes the following technical means in order to solve the above-mentioned problems. That is, the starting end of the dust processing chamber 4 having the dust processing cylinder 3 mounted on the inner shaft thereof is communicated with the end of the handling chamber 2 having the processing cylinder 1 mounted on the inner shaft through the transfer port 5 for the dust. In the threshing machine 6 described above, the dust treatment cylinder 3 is provided with a spiral body 7 for scraping and transferring dust to the dust treatment chamber 4 at a position facing the transfer port 5 at the start end thereof. The spiral body 7 is a dust treatment device configured by cutting the front end portion a on the feed side.

[0006]

The present invention is constructed as described above.
The long straw supplied from the handling chamber to the dust treatment chamber does not become entangled with the wiping spiral of the dust treatment cylinder, becomes easy to separate from the spiral on the feed side, and does not wrap around the spiral or the dust treatment cylinder. In addition, it is possible to efficiently perform the dust treatment.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. First, the configuration will be described.

As shown in FIGS. 1 and 4, the threshing machine 6 has a handling chamber 2 in which a handling cylinder 1 is mounted on an inner shaft and is located on an upper side thereof. 8 is further provided, and a sorting chamber 12 is provided below the sorting chamber 12 in which a pressurized air kara 9, a first transfer spiral 10, and a second transfer spiral 11 are arranged in order from the upper side in the sorting direction. I have. The feed chain 13 is provided along the handle of the handling room 2 as shown by the phantom line in FIG. 1, and the ears of the grain stalks holding the stock are inserted into the handling room 2 from the handling mouth. And transport it.

Then, the threshing machine 6, as shown in FIG.
A second processing chamber 14 and a dust processing chamber 4 are provided behind the handling chamber 2. Then, the second processing chamber 14 flies and supplies the second product collected by the second transfer spiral 11 by the second frying device 15, and the second product is processed by the second processing cylinder 16 shafted inside. The second processing operation is performed. In the case of the embodiment shown in the drawing, the second processing chamber 14 reprocesses the supplied second product while transporting it forward in the direction opposite to the threshing transport direction of the handling drum 1, and sequentially sorts the processed material. 12.

[0010] Next, the dust processing chamber 4 is shown in FIGS.
As shown in FIG. 2, the transfer port 5 opened at the start end is connected to the handling chamber 2.
A leakage frame 17 for the processed material is stretched and provided at an intermediate portion, a dust discharge port 18 at the end is opened in the sorting chamber 12, and the dust treatment cylinder 3 is mounted on an inner shaft. It is composed. Therefore, the dust treatment chamber 4 is carried around while being threshed in the handling room 2, reaches the terminal portion, and inherits the unprocessed material that has not dropped from the dust outlet of the handling room 2 to the sorting room 12 below. The structure is such that the grain-dropping process is performed again.

[0011] Then, the dust processing cylinder 3 is provided with a dust processing chamber 4 at a portion facing the transfer port 5 at the start end thereof.
In this case, as shown in FIGS. 2 and 3, the spiral 7 is formed in a spiral shape so as to feed the dust toward the terminal end while scraping the dust. The end portion a of the end portion is cut so as to prevent the entanglement of the long straw and the occurrence of the occurrence of the catch. The dust processing drum 3 has a processing blade 19 extending from an intermediate portion to a terminal portion to perform a dust discharging process, and a dust discharging plate 20 is provided at a position facing the dust outlet 18 at the terminal portion. ing.

In the case of the embodiment shown in FIG. 5, the above-described leaking frame 17 has a structure in which the opening 21 is overlapped with the end portion of the spiral body 7 to promote the discharge of the long straw and prevent winding. And In the case of the embodiment shown in FIG. 6, the opening 21 is provided in the middle part of the dust processing chamber 4 so as to be opened while maintaining the feed angle α with respect to the rotation axis of the dust processing cylinder 3. It is configured so that dust can be easily discharged to the outside even if it is not provided (inside in the conventional configuration).

[0013] Then, as shown in FIG.
It is attached to the inside of the leak frame 17 and is configured to be detachable integrally with the leak frame 17 during maintenance. In the conventional type, the cutting blade B was attached to the fixed machine frame C side as shown by a virtual line in FIG.

Next, the above-mentioned swing sorting shelf 8 is provided with a transfer shelf 23, a chaff sheave 24,
The objects to be sorted which have been arranged in the order of the racks 25 and integrally framed and supported by swinging freely, and which have leaked into the sorting chamber 12 by the synergistic action with the sorting wind generated by the pressurized wind 9. Is configured to perform the sorting operation.

Reference numeral 26 denotes a suction / dust discharging device, and 27 denotes a straw belt. As shown in FIG. 8, the threshing machine 6 configured as described above has a traveling body 2 having a cutting pre-processing device 28 mounted on the front.
9 to form a combine.

Next, the operation will be described. First, the combine starts the engine, engages the threshing clutch, operates the rotating parts of the fuselage, prepares for the operation, moves the traveling vehicle body 29 forward, and starts the harvesting and threshing operation.

Then, the grain culm in the field is cut by the cutting pre-processing device 28 at the front as the combine advances, is transported upward, is taken over by the feed chain 13, and is supplied to the threshing machine 6. In this manner, the culm is fed to the handling chamber 2 from the handling port while the stock is clamped and fed by the feed chain 13, and is subjected to threshing by the rotating handling cylinder 1. Then, the thresh is carried around by the rotating handling drum 1 and further leaks from the sorting net while being subjected to the threshing process to reach the rocking sorting shelf 8 of the sorting chamber 12 to perform the rocking sorting. receive.

The objects to be sorted are transferred on the transfer shelf 23 in the direction of the shelves to reach the chaff sheave 24, where the grains leak and are separated and separated from the long straw etc. by the wind sorting action by the sorting wind. Is to receive. Then, the dust is separated into a dust reaching the suction dust discharging device 26 and a dust reaching the shelf top rack 25 of the swing sorting shelf 8, and is discharged outside the machine.

On the other hand, the untreated 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 1 and is discharged as dust. It is sent to the transfer port 5 side. At this time, the dust treatment cylinder 3 performs the action of scraping the dust into the dust treatment chamber 4 by locking the dust that the spiral body 7 at the start end portion has reached within the rotating and scraping area.

The dust discharged into the dust treatment chamber 4 in this way is subjected to the processing action of the dust treatment cylinder 3 and sequentially leaks from the opening 21 of the leakage frame 17 to the sorting chamber 12 and finally. When the dust reaches the dust discharge port 18, all of the dust is discharged to the sorting chamber 12 and subjected to the sorting action.

As described above, the objects to be sorted are sorted while being subjected to the synergistic action of the swing sorting action and the wind sorting action by the sorting wind, and the first thing (fine grain), the second thing, and the waste matter are sorted out. The first thing falls on the first transfer spiral 10 and is collected and harvested outside the machine. The second thing is fried from the second transfer spiral 11 by the second graining device 15 to be collected. The dust is returned to the second processing chamber 14 and subjected to the second processing operation, and the dust is discharged to the suction / dust discharging device 26.
As a result, dust is discharged, and the straw waste reaching the storage rack 20 is discharged from the shelf to the outside of the apparatus.

During such a series of threshing / dust-discharging operations, the dust-discharging cylinder 3 has the transfer port 5 at its starting end.
Of the spiral body 7 that scrapes and transports the dust into the dust processing chamber 4 at the portion where the dust is conveyed. Even if long straw is mixed in the scraped and scraped material, it can be sent without being caught on the sending side of the spiral 7. In this case, the spiral body 7 can be smoothly fed into the dust discharge processing chamber 4 by cutting the leading end portion a on the feed side, since there is no portion where the long straw is likely to catch.

The spiral 7 is formed as shown in FIG.
If it is configured so as to overlap with the opening 21, the long straw can be easily discharged to the outside of the machine (the sorting room 12), the residence time in the dust processing chamber 4 can be shortened, and winding can be extremely reduced. Furthermore,
In the case of the embodiment shown in FIG. 6, the opening 21 is provided in the middle part of the dust treatment chamber 4 while being opened while maintaining the feed angle α with respect to the rotation axis of the dust treatment cylinder 3. Even if the guide is not provided, there is an advantage that the discharge of the dust can be easily performed and the stay in the room can be reduced.

Another Embodiment 1 Next, another embodiment 1 will be described with reference to FIG. In the first embodiment, the selection interval of each of the sheave fins 40a, 40b, 40c,... Constituting the chaff sheave 40 is interlocked with the vertical movement of the straw holding pin 41 (the vertical movement according to the amount of straw). It is related to a configuration that opens and closes.

Conventionally, when the amount of straw is increased and the straw holding rod 41 is pushed down, the sieve fins 40a, 40b, 40c,... When the amount of straw is reduced and the straw holding rod 41 is moved upward, the sorting interval is narrowed. As described above, the chaff sheave 40 has a configuration in which the straw holding rod 41 is used as a detection sensor to automatically adjust and control the sorting in accordance with the amount of dust (the amount of the sorting object).

First, as shown in FIG. 9, the chive sieves 40 are arranged with the sieve fins 40a, 40b, 40c...
It is configured to be attached to the swinging side frames 42 on both sides. As shown in FIG. 9, each of the sheave fins 40a, 40b, 40c... Is pivotally connected at the upper part on both sides, and the lower part can be adjusted in the range of the elongated hole 43 formed in the swinging side frame 42. It is configured to be attached to a connecting rod 44 that can be formed. And the connecting rod 4
4 has an end connected to a sheer return spring 45 to apply a spring force to the side for narrowing the selection interval of each of the sheave fins 40a, 40b, 40c.

The interlocking wire 46 has one end connected to the connecting rod 44 and the other end connected via a spring 48 to the tip of an operating arm 47 having an intermediate portion pivotally connected. ing. The operating arm 47 is configured such that its base is connected to the straw holding rod 41 via a supporting rod 49 and is interlocked therewith. 50 is a straw chain.

With the above construction, during operation, the chief sheave 40 is moved by the sheer return spring 4.
5 and the straw holding rod 41 side (interlocking wire -46,
The connecting rod 44 is held at a harmony point with the pulling force from the spring 48, the operating arm 47, and the supporting rod 49), and the selection interval of the sheave fins 40a, 40b, 40c,. .

When the amount of straw is increased and the straw holding rod 41 is pushed down with a strong force, the support rod 49 is lowered and the operating arm 47 is rotated about the fulcrum. Pull the interlocking wire 46 through the spring 48, and
The sheave fins 40a, 40b, 40c... Are operated by pulling the connecting rod 44 against the brittle spring 45. Thus, the sheave fins 40a, 40b, 40c ...
When the amount of straw (the amount of the material to be sorted) is increased, the sorting interval is extended in conjunction with the amount of straw, and it is possible to cope with a large number of materials to be sorted. When the amount of straw is reduced, the chief sieve 40 operates in conjunction with each of the sieve fins 40a, 40b, 40c.
The selection interval of ... becomes narrow.

In the first embodiment, during the above operation, the
It is characterized in that the brittle spring 45 applies a tension that pushes up the straw holding rod 41, so that the conventional spring for the straw holding rod is not required. Therefore, the first embodiment has a feature that the configuration is simplified and the cost is reduced as compared with the conventional apparatus.

Second Embodiment Next, a second embodiment will be described with reference to FIGS. In the second embodiment, in the configuration of the first embodiment, the straw holding rod 41 is quickly returned.
The apparatus incorporates a device for slowly operating the sheave fins 40a, 40b, 40c,...

First, as shown in FIG. 10, the operating arm 47 is provided with a holding rod spring 51 on one side (the supporting rod 49 side) of the rotation fulcrum, a long hole 52 on the other side, and a holding spring. A portion connected to the spring 53 and 53 is engaged with the elongated hole 52 to form a damping device 54.

With this configuration, the straw holding pin 41
Is that the amount of straw increases and falls downward,
a, 40b, 40c ... from the state where the selection interval is widened,
When the amount of straw decreases and returns upward, the operation is quickly performed by the tension of the holding rod spring 51. On the other hand,
As shown in FIG. 12, the buffins 40a, 40b, 40c are in a state in which the interlocking wire 46 is in a play state in the range of the elongated hole 52 even when the operating arm 47 is rotated, as shown in FIG. Yes, thereafter, it returns slowly based on the tension of the shear return spring 45 to narrow the selection interval.

The second embodiment is configured as described above, and has an effect of adjusting the transport action of the straw and the time lag of the sorting object reaching the swing sorting shelf.

[Brief description of the drawings]

FIG. 1 is a plan view of an essential part of an embodiment of the present invention.

FIG. 2 is a sectional view of an embodiment of the present invention.

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

FIG. 4 is a cut-away side view of the embodiment of the present invention.

FIG. 5 is a side view of the embodiment of the present invention.

FIG. 6 is a cut-away side view of the embodiment of the present invention.

FIG. 7 is a cut rear view of the embodiment of the present invention.

FIG. 8 is a side view of the embodiment of the present invention.

FIG. 9 is an internal side view of another embodiment 1 of the present invention.

FIG. 10 is a second embodiment of the present invention and is an internal side view.

FIG. 11 is an operational side view of another embodiment 2 of the present invention.

FIG. 12 is a side view of an operation of another embodiment 2 of the present invention.

[Explanation of symbols]

1 Handling cylinder 2 Handling room 3
Dust treatment cylinder 4 Dust treatment chamber 5 Transfer port 6
Threshing since 7 Spiral a tip.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yoshinobu Furukawa 1 Yakura, Tobe-cho, Iyo-gun, Ehime Pref.

Claims (1)

[Claims] A starting end of a dust processing chamber having a dust processing cylinder mounted on an interior thereof is communicated with a terminal end of a handling chamber on which a handling cylinder is internally mounted through a dust transfer port. In the threshing machine 6 configured as described above, the dust processing cylinder 3 has a spiral body 7 that scrapes and transfers the dust into the dust processing chamber 4 to a portion facing the transfer port 5 at the start end thereof. A dust processing apparatus in which the spiral body 7 is formed by cutting a leading end portion a on the feed side.