JP2008048620A - Threshing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a threshing apparatus capable of improving the efficiency of separating grains and straw wastes at a swing separator by furnishing an upper dust exhaust port on the upper part of an exhaust dust treatment chamber. <P>SOLUTION: The threshing apparatus 1 is provided, being equipped with the exhaust dust treatment chamber D at the downstream side of conveying treated matter from a threshing chamber A and also equipped with a rotary fan 14 for sending separatory blow against treated matter transferring from a grain pan 6 to a chaff sieve 7. In third threshing apparatus 1, the upper part of the exhaust dust treatment chamber D is furnished with the upper dust exhaust port 4 opened out of the apparatus 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a threshing apparatus provided with a rotary fan that supplies a selection wind toward a processed product moving from a grain pan to a chaff sheave.

  As a conventional technique, for example, as disclosed in Patent Document 1, a rotary fan that supplies a selection wind toward a processed product that moves from a grain pan to a chaff sheave includes grains and sawdust contained in the processed product. Threshing devices configured to be screened are known.

JP-A-11-225561

As disclosed in Patent Document 1, if a rotating fan is provided on the lower side of the upper transfer side of the handling chamber and the sorting wind is supplied toward the processed material moving from the grain pan to the chaff sheave, the sorting wind is transferred to the handling chamber. It passes under the lower end and heads to the upper part of the dust disposal chamber on the lower transfer side of the handling chamber. If it does so, the sawdust contained in a processed material will be conveyed toward the upper part of a dust removal processing chamber by this sorting wind.
However, in the conventional threshing apparatus, the upper part of the dust removal processing chamber is not open to the outside of the machine, so that the sawdust conveyed to the upper part of the dust removal treatment chamber by the sorting air supplied from the rotary fan is removed from the dust removal treatment chamber. In some cases, the location of the upper part of the device is lost and accumulated on the upper part of the equipment provided in the dust processing chamber (for example, the upper part of the upper fan guide provided above the dust exhaust fan). In particular, when the air volume of the rotary fan is increased, a large amount of soot may be transported to the upper part of the dust removal processing chamber and accumulated in the upper part of the equipment provided in the dust removal processing chamber. It was.

If the swarf accumulated at the top of the equipment provided in the dust disposal chamber falls on the rocking sorter, it will adversely affect the sorting of grain and swarf, and hinder efficient grain and swarf sorting. It was. For this reason, if it is configured so that the sorting air containing soot can be guided to the outside of the machine without losing its place at the top of the dust processing chamber, the soot transported to the top of the dust processing chamber can be removed. It can be discharged to the outside of the machine, and it is possible to prevent the soot from accumulating on the upper part of the equipment provided in the dust processing chamber. As a result, the swarf accumulated on the upper part of the device provided in the dust disposal chamber is less likely to fall on the swing sorting device, and the grain and saw dust sorting efficiency in the swing sorting device can be improved. it is conceivable that.
An object of this invention is to implement | achieve the threshing apparatus which can improve the sorting efficiency of the grain and sawdust in a rocking | swiveling sorter by providing an upper dust removal port in the upper part of a dust removal process chamber.

[I]
(Constitution)
A first feature of the present invention is that a dust removal processing chamber is provided on the lower conveyance side of the processed material in the handling chamber, a swing sorting device is provided below the handling chamber, and the swing sorting device is connected to the handling chamber from the handling chamber. A grain pan that receives and processes the fall-supplied processed material and performs a sorting process, and a chaff sheave that performs a sorting process while inheriting the processed material from the grain pan, and below the upper handling side of the handling chamber, In the threshing apparatus provided with the rotation fan which supplies a selection wind toward the processed material which moves to the said chaff sheave, there exists in having comprised as follows.
An upper dust exhaust opening that is open to the outside of the apparatus is provided in the upper part of the dust removal treatment chamber.

(Function)
According to the first feature of the present invention, when the sorting air is supplied from the rotating fan provided on the lower side of the handling chamber to the chaff sheave, the sorting air is included in the processing object. It passes along the lower end of the lower handling side of the handling chamber along with the waste generated, toward the upper part of the dust disposal chamber on the lower handling side of the handling chamber. The sorting air supplied to the upper part of the dust processing chamber is discharged out of the apparatus together with the soot from the upper dust outlet provided in the upper part of the dust processing chamber. In other words, the sorting air containing soot can be guided to the outside of the machine without difficulty from the upper dust outlet provided in the upper part of the dust treatment chamber without losing the place in the upper part of the dust treatment chamber. The sawdust conveyed to the upper part of the processing chamber can be discharged out of the machine.

(The invention's effect)
According to the first feature of the present invention, since the soot transported to the upper part of the dust processing chamber can be discharged out of the machine, the soot accumulates on the upper part of the equipment provided in the dust processing chamber. Can be prevented. Therefore, the accumulated swarf is less likely to fall on the swing sorting device, and the grain and swarf sorting efficiency in the swing sorting device can be improved.

[II]
(Constitution)
The second feature of the present invention is that the threshing apparatus of the first feature of the present invention is configured as follows.
An openable / closable member is provided at the upper dust outlet.

(Function)
According to the second feature of the present invention, the “action” described in the preceding item [I] is provided in the same manner as the first feature of the present invention, and in addition to this, the following “action” is provided.
According to the second feature of the present invention, the upper dust exhaust port can be opened and closed by providing the upper dust exhaust port with an openable / closable member. Therefore, for example, the upper dust outlet can be opened and closed according to the air volume of the rotary fan and the amount of processed material. Specifically, if the air flow of the rotary fan or the amount of processed material is large and the amount of soot supplied to the upper part of the dust processing chamber is large, open the upper dust outlet to the outside of the machine. When the air volume of the rotary fan or the processing amount of the processed material is small and the amount of soot supplied to the upper portion of the dust processing chamber is small, the upper dust outlet can be closed.

(The invention's effect)
According to the second feature of the present invention, the “effect of the invention” described in the preceding item [I] is provided in the same manner as the first feature of the present invention. In addition, the following “effect of the invention” is provided. ing.
According to the second feature of the present invention, the upper dust exhaust port can be opened and closed in accordance with the air flow rate of the rotary fan and the amount of processed material, so that the waste dust transported to the upper part of the dust removal treatment chamber can be efficiently removed. Can be discharged out of the machine.

  FIG. 1 shows a threshing apparatus 1 mounted on a combine. In the best mode for carrying out the present invention, in order to show an example in which the threshing apparatus 1 is mounted on a combine, the left side in FIG. 1 corresponds to the upper conveyance side of the processed material, and the right side in FIG. (The same applies to FIGS. 2 to 6.) In the following description, the upper side of the processed product is indicated as the front side, and the lower side of the processed product is indicated as the rear side.

  As shown in FIGS. 1 to 3, the threshing apparatus 1 has a handling chamber A at the upper front side, a swing sorting device B at the middle side, a recovery device C at the lower side, and dust exhausted behind the handling room A. A processing chamber D is provided. In the threshing device 1, a handling cylinder 3 for handling the harvested cereal while being held and conveyed by the feed chain 2 is pivoted on the handling chamber A, and the receiving net 5 for leaking the treated product. Is disposed below the barrel 3.

  The swing sorting device B includes a grain pan 6 for receiving the processed material leaked from the receiving net 5, a chaff sheave 7 and a stroller rack 8 sequentially positioned behind the grain pan 6, and a grain sheave 9 positioned below the chaff sheave 7. And a second glen pan 15 positioned below the chaff sheave 7 below the rear end portion of the handling cylinder 3 and is installed on a sheave case 16 that is driven to swing back and forth.

  The recovery device C has a tang 10 located on the lower side of the grain pan 6 and a first thing that is located below the grain sieve 9 and collects the leaked material (first thing) from the grain sieve 9 and laterally feeds it to one side. A transport screw 11, a second transport screw 12 that is positioned below the stroller rack 8 and collects the leaked material (second product) from the grain sheave 9, the chaff sheave 7, etc. A sorting fan 13 is disposed between the carrying screw 11 and the second article carrying screw 12 and supplies a sorting wind toward the upper side of the second article carrying screw 12.

  A rotating fan 14 is provided at the front lower side of the swing sorting device B in front of the swing sorter B, and is guided by the upper fan case 18 and the lower fan case 19 so as to supply the sorting wind toward the terminal end of the Glen pan 6. It is configured.

  The dust removal processing chamber D includes a rotating drum 17 located behind the handling cylinder 3, and the processed material supplied from the dust feed port 24 below the rear end of the handling cylinder 3 is disassembled and processed by the rotating drum 17. And it is comprised so that a grain may be taken out from dust. A dust exhaust fan 20 is disposed at the rear of the rotary drum 17, and the air containing the dust sucked from the front of the dust exhaust fan 20 is guided to the upper fan guide 21 and the lower fan guide 22, It is configured to discharge outside the machine.

  A dust exhaust port 23 is provided below the dust exhaust fan 20, and processing is performed by supplying a Chinese wind toward the dust exhaust port 23 from the Kara 10 located below the front part of the swing sorting device B. It is comprised so that the grain and sawdust contained in a thing can be sorted out.

  An exhaust cutter 30 is provided behind the dust exhaust fan 20, and soot that has been transported rearward by the exhaust chain 31 is shredded by the exhaust cutter 30 and discharged outside the apparatus.

  As shown in FIGS. 4 and 5, the upper portion of the handling chamber A is covered with a handling chamber cover 25, and the upper portion of the dust disposal chamber D is covered with a dust disposal chamber cover 26. A front side plate 27 and a rear side plate 28 are provided before and after the handling chamber A, and the handling chamber A and the dust treatment chamber D are partitioned by the rear side plate 28. Furthermore, the upper part of the handling chamber cover 25 and the dust removal processing chamber cover 26 is covered with an exterior cover 29.

  The upper dust exhaust port 4 is formed by processing the opening L in the dust exhaust treatment chamber cover 26 positioned above the dust exhaust treatment chamber D, and the rear end portions of the dust exhaust treatment chamber cover 26 and the exterior cover 29 are formed. The upper dust discharge port 4 is configured to be opened to the outside of the machine through a dust discharge duct 32 extending toward the rear of the discharge cutter 30.

  The upper dust outlet 4 is provided with a plate-like opening / closing member 33 that can open and close the upper dust outlet 4, and is supported so as to swing up and down with the front end of the opening / closing member 33 as a fulcrum. A stay 34 is attached across the opening / closing member 33 and the dust removal chamber cover 26, and the opening / closing degree of the opening / closing member 33 is adjusted by loosening and adjusting the fastening member 35 provided on the opening / closing member 33 side. It is configured to be able to. In this way, by configuring the opening / closing degree of the opening / closing member 33 so as to be adjustable, the opening / closing member 33 can be adjusted to an appropriate degree of opening / closing according to the air volume of the rotary fan 14 and the amount of processed material.

  An upper maintenance port 36 is formed in the exterior cover 29 located above the upper dust exhaust port 4, and a maintenance cover 37 is attached so as to cover the upper maintenance port 36 from above. The maintenance cover 37 is supported so as to be able to swing up and down with the front end portion of the maintenance cover 37 as a fulcrum. A lock device 38 for fixing the maintenance cover 37 in a closed state is attached to the rear portion of the maintenance cover 37. It has been. It is possible to adjust the opening / closing degree of the opening / closing member 33 from above the upper maintenance port 36 by releasing the lock 38 of the maintenance cover 37 and opening the maintenance cover 37 upward to open the upper maintenance port 36. It can be done.

  As shown in FIG. 3, when the sorting air is supplied by the rotary fan 14 toward the processing object that moves from the grain pan 6 to the chaff sheave 7, the sorting air together with the sawdust contained in the processing object, It goes to the upper part of the dust treatment chamber D through the vicinity of the dust feed port 24 located at the lower rear. The sorting air supplied to the upper portion of the dust processing chamber D is discharged from the upper dust outlet 4 provided at the upper portion of the dust processing chamber D to the outside of the machine through the dust duct 32 and the soot. Therefore, it is possible to prevent the soot from accumulating on the upper part of the upper fan guide 21 provided in the dust processing chamber D, and the accumulated soot is less likely to fall on the swing sorting device B. It is considered that the grain and sawdust sorting efficiency in the swing sorting device B can be improved.

  In the threshing apparatus 1, a rotating drum 17 is provided behind the handling drum 3, and a dust exhaust fan 20 is disposed behind the rotating drum 17. That is, since the rotary drum 17 is arranged at a position where the dust exhaust fan 20 sucks the dust in the dust processing chamber D, the rotary drum 17 becomes an obstacle when sucking dust with the dust fan 20. It becomes difficult for the sawdust conveyed above the rotating drum 17 to be discharged outside the machine. Therefore, when the rotary drum 17 is disposed in front of the dust exhaust fan 20 as in the threshing device 1, it is advantageous to employ a configuration in which the waste dust is discharged from the upper dust discharge port 4 described above. Is considered large.

  In FIG. 6, the outline of the drive structure of the rocking | swiveling sorter B in this threshing apparatus 1 is shown. As shown in FIG. 6, the sheave case 16 is rotatably supported at the center portion of the drive shaft 40 whose both ends are eccentric, and a split pulley 42 is connected to one end portion of the drive shaft 40 via a transmission mechanism 41. Are connected. In this way, the belt winding diameter of the transmission belt 43 wound around the split pulley 42 can be changed by an actuator (not shown) such as an electric motor, so that the swing speed of the swing sorting device B is continuously variable. You can change gears.

  In the conventional oscillating sorter B, the oscillating speed of the oscillating sorter B is constant, and the speed is set relatively high. Therefore, for example, when the processing amount of the processed material is small, the rocking speed of the rocking sorter B is too fast, and the grain jumps on the sheave case 16 and the grain is discharged out of the machine 3. There was a problem that there was a lot of loss. Therefore, by using the split pulley 42 as in the threshing device 1 to change the swing speed of the swing sorting device B, for example, when there is a large amount of processed material, the swing sorting device. On the contrary, when the processing amount of the processed material is small, the swing sorting device B can be swung slowly. That is, the rocking speed of the rocking sorter B can be changed according to the amount of processed material. Therefore, for example, it is considered that the third loss can be reduced when the amount of the processed material described above is small.

[First Alternative Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention], the upper dust discharge port 4 is formed by processing the opening L in the dust removal treatment chamber cover 26 located above the dust removal treatment chamber D. However, the size and shape of the opening L may be different sizes and shapes.

[Second Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention] and [First Alternative Embodiment], an example in which the opening / closing member 33 is configured in a plate shape is shown, but the shape and the like of the opening / closing member 33 are different. It may be a shape.

  Further, as an opening / closing structure of the opening / closing member 33, an example is shown in which the front end portion of the opening / closing member 33 is supported so as to be swingable up and down. For example, the upper dust outlet 4 may be opened and closed by sliding the opening and closing member 33.

[Third Another Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention], [First Alternative Embodiment of the Invention] and [Second Alternative Embodiment of the Invention], the threshing apparatus 1 mounted on the combine is shown as an example. However, the present invention is not limited to the threshing device 1 mounted on the combine, but can be similarly applied to, for example, the threshing device 1 mounted on a harvester (not shown) that does not include a cutting part (not shown).

Combine left side view Overall plan view of combine Longitudinal side view of threshing device Vertical side view of the dust disposal chamber Cross-sectional plan view showing the structure of the open / close member The top view which shows the outline of the drive structure of a rocking sorter

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Threshing device 4 Upper dust outlet 6 Glen pan 7 Chaff sheave 14 Rotating fan 33 Opening and closing member A Handling chamber B Swing sorter D Dust removal processing chamber

Claims (2)

A dust removal processing chamber is provided on the lower conveyance side of the processed material in the handling chamber, and a swing sorting device is provided below the handling chamber, and the swinging sorting device receives the processed material dropped from the handling chamber. A pan for sorting while transporting and a chaff sheave for sorting while inheriting the processed material from the pan, and facing the processed material moving from the pan to the chaff sheave on the upper side of the transport chamber. A threshing device provided with a rotating fan for supplying the sorting air,
A threshing apparatus provided with an upper dust outlet opened to the outside of the machine at the upper part of the dust disposal chamber.   The threshing apparatus according to claim 1, further comprising an opening / closing member that can be opened and closed at the upper dust outlet.

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