JP5005624B2 - Threshing device - Google Patents

Description

  The present invention relates to a threshing device mounted on a combine or the like.

  In general, this type of threshing device uses a swinging sorter provided in the sorting room to sort the processed material that has fallen into the sorting room from the handling room via the receiving net, Is stored in the grain tank, and the second sorted product is reduced on the swinging sorter from the second reduction port provided in the side wall portion of the sorting chamber.

The swing sorter usually has a feed pan that receives the processed material dropped from the handling chamber via the receiving net and sends it to the rear, a chaff sheave for screening the processed material behind the feed pan, and a processed material behind the chaff sheave. In addition, the second collection unit is configured to receive the processed material dropped from the rear part of the handling chamber to the sorting chamber and receive it at the top of the chaff sheave and drop it onto the stroking rack. There is also known one having a feed pan (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 4-41231

  When the second product is reduced on the rocking sorter, the position of the second reduction port is usually set to one side of the first feed pan or chaff sheave, and the second product is on the first feed pan or chaff sheave. Reduced to However, in the case of an oscillating sorter equipped with a second feed pan, if the second reducing port is positioned on one side of the chaff sheave, the second reduced product will get on the second feed pan and There is a risk that the items and flying outside the aircraft will increase. That is, when the second reduced product gets on the second feed pan, a closed loop second circulation of “second reducing port-second feed pan-straw rack-second collecting unit-second reducing port” occurs. As a result, the sorting efficiency of the second reduced product is reduced, which increases the second product. In addition, the second reduced product on the second feed pan is likely to be mixed with the processed material with a high ratio of debris dropped from the rear part of the handling chamber. End up.

The present invention was created in order to solve these problems in view of the above circumstances, and a processing object dropped from a handling chamber to a sorting chamber via a receiving net can be provided in the sorting chamber. In the threshing apparatus for sorting by the rocking sorter and reducing the sorted second product onto the rocking sorter from the second reducing port provided in the side wall of the sorting chamber, the rocking sorter receives the The first feed pan that receives the processed material that has fallen from the chamber through the net and sends it to the rear, the chaff sheave that sifts and sorts the processed material behind the first feed pan, and the second collection unit for the processed material behind the chaff sheave And a second feed pan that receives the processed material dropped from the rear of the handling chamber into the sorting chamber above the chaff sheave and sends it to the rear, and drops it onto the straw rack. Chaffsey In addition, the second reducing port is arranged on one side of the second feed pan, and the second reduced product reduced from the second reducing port is placed on the chaff sheave on one side of the second feed pan. It is characterized in that a space is formed for direct dropping onto the wall. In this way, even if the arrangement is such that the second reduction port is located on one side of the chaff sheave and the second feed pan, the second feed pan has been reduced from the second reduction port on one side. Since a space for dropping the second reduced product directly onto the chaff sheave is formed, it is possible to prevent the second reduced product from getting on the second feed pan, and to avoid an increase in the second reduced product and airborne scattering.
In addition, an opening for allowing the second reduced product that has directly dropped onto the chaff sheave to flow into the lower region of the second feed pan is formed in one side surface portion of the second feed pan. In this way, since the processing capacity of the second reduced product in the chaff sheave is improved, the second reduced product is prevented from overflowing on the chaff sheave, and an increase in the second product and out-of-flight scattering due to overflow can be avoided. .
Further, a shielding member for shielding between the second reducing port and the upper surface of the second feed pan is suspended in the sorting chamber. In this way, the space between the second reducing port and the upper surface of the second feed pan is shielded, so that the second reduced product can be reliably prevented from getting on the second feed pan.

  Next, embodiments of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a threshing device provided in a combine or the like. The threshing device 1 includes a threshing feed chain 3 for holding and transporting stalks along the handling port of the handling chamber 2, and a handling chamber via the handling port. A handling cylinder 4 for threshing grains (processed products including swarf and the like) from the stems introduced in 2, a receiving net 6 for leaking the threshed processed products to the sorting chamber 5, and a receiving net 6 A swing sorting body 7 that swings and sorts the processed material that has fallen from the handling chamber 2 through the pressure chamber, a compressed air fan 8 that generates a sorting wind, a first spiral 9 that collects the sorted first thing, and a sorting process. A second helix (second collection section) 10 for collecting the second product collected, a second reduction path 11 for reducing the collected second product onto the rocking sorter 7, and a threshing feed for the threshed waste It is configured to include a waste transporting body 12 that is inherited at the end of the chain 3 and transports to the rear of the apparatus.

  The swing sorter 7 receives a processed product dropped from the handling chamber 2 via the receiving net 6 and sends it to the rear, and a chaff sheave 14 for sieving and sorting the processed product behind the first feed pan 13. Glen sieve 15 for further sifting the processed material leaked from the chaff sheave 14, strok rack 16 for allowing the processed material to leak into the second spiral 10 behind the chaff sheave 14, and the rear opening and the fourth of the handling chamber 2. An assembly that includes a second feed pan 18 that receives the processed material that has dropped from the port 17 into the sorting chamber 5 above the chaff sheave 14, feeds it backward, and drops it onto the straw rack 16, and swings into the sorting chamber 5. It is supported freely and is forcibly swung by a swing mechanism such as a cam mechanism.

  More specifically, the first feed pan 13 is composed of a corrugated transfer plate, and sequentially feeds the processed material backward based on the rocking transfer action of the transfer plate. The chaff sheave 14 is constituted by a plurality of fins 14a arranged in parallel in the front-rear direction with a predetermined interval, and the glenve sheave 15 is constituted by a wire mesh member having a predetermined mesh. The processed material transferred to the end of the first feed pan 13 is sieved and sorted in two stages by the chaff sieve 14 and the grain sieve 15, and is selected by receiving the sorting wind in the process. And the selected grain falls to the spiral 9 as the first thing. Further, the processed material transferred to the end portion of the chaff sheave 14 falls to the second spiral 10 through the stroking rack 16. The second thing that falls here includes single grains, grains with spikes, short pods, and the like. In addition, the eaves or the like whose drop is restricted by the stroking rack 16 is transferred to the end thereof and discharged from the dust outlet 19 to the outside of the apparatus. The chaff sheave 14 can adjust the degree of opening of the gap between the fins 14a (hereinafter referred to as fin opening), and adjust the fin opening of the chaff sheave 14 according to the type and amount of material to be selected. Thus, good sorting accuracy and sorting efficiency can be obtained.

  Similar to the first feed pan 13, the second feed pan 18 is configured by a corrugated transfer plate, and between the upper end portions of the support side plates 20 and 21 erected on the left and right sides of the chaff sheave 14. It is erected integrally. The second feed pan 18 provided in this way receives the processed material that has fallen into the sorting chamber 5 from the rear opening or the fourth port 17 of the handling chamber 2 and feeds it to the rear of the chaff sheave 14, and sends it to the strok rack 16. Drop it. That is, the processed material falling from the rear opening or the fourth port 17 of the handling chamber 2 contains a large amount of mixture, so that the sorting accuracy can be improved as compared with the case of dropping directly onto the chaff sheave 14. Further, the second feed pan 18 also functions as a wind direction plate that guides the sorting air blowing up from the chaff sheave 14 toward the dust outlet 19.

  The second reduction path 11 is formed along the side wall portion 22 (opposite side of the threshing feed chain 3) of the sorting chamber 5, and the second product inherited at the terminal end of the second helix 10 is formed in the side wall portion 22. To the second reduction port 23 and discharged from here on the rocking sorter 7. The position of the second reducing port 23 is one side of the chaff sheave 14 and the second feed pan 18, but since the second reduced product is discharged obliquely forward from the second reducing port 23, the first feed pan 13 Also reduced to the top.

  In the threshing apparatus 1 according to the embodiment of the present invention, in arranging so that the second reducing port 23 is located on one side of the chaff sheave 14 and the second feed pan 18, on one side of the second feed pan 18, A space 24 for directly dropping the second reduced product reduced from the second reduction port 23 onto the chaff sheave 14 is formed. For example, the right support side plate 21 of the second feed pan 18 is offset to the left side to secure the space 24 described above. With this arrangement, even if the second reducing port 23 is positioned on one side of the chaff sheave 14 and the second feed pan 18, the second reducing port is positioned on one side of the second feed pan 18. Since a space 24 for directly dropping the second reduced product reduced from 23 onto the chaff sheave 14 is formed, the second reduced product is prevented from getting on the second feed pan 18, and the second product and machine Increase in outside scattering can be avoided.

  Moreover, it is preferable to form an opening 21 a for allowing the second reduced product that has directly dropped onto the chaff sheave 14 to flow into the lower region of the second feed pan 18 on one side surface portion of the second feed pan 18. For example, the lower side of the right support side plate 21 is greatly cut out to form the opening 21a. In this way, the processing capacity of the second reduced product in the chaff sheave 14 is improved, so that the second reduced product is prevented from overflowing on the chaff sheave 14, and the increase in the second product and out-of-flight scattering due to overflow is prevented. Can be avoided.

  Further, it is preferable to suspend a shielding member 25 that shields between the second reduction port 23 and the upper surface of the second feed pan 18 in the sorting chamber 5. For example, a hook-like bracket 26 is projected at a position above the second return port 23 in the side wall portion 22, and a shielding member 25 made of an elastic sheet member is suspended from the tip of the bracket 26, The space between the number reducing port 23 and the upper surface of the second feed pan 18 is shielded. In this way, it is possible to reliably prevent the second reduced product from getting on the second feed pan 18.

  Further, the shielding member 25 and the bracket 26 can also function as a wind direction member that guides the sorting air blowing from the chaff sheave 14 toward the dust outlet 19. That is, when the above-described space 24 is formed, the sorting air blows up from the space 24 and may reach the fourth port 17, but the sorting that blows up from the space 24 using the shielding member 25 and the bracket 26. By guiding the wind toward the dust outlet 19, the flow of the sorting wind can be optimized and the sorting performance can be improved.

  The lower end of the shielding member 25 is preferably connected to the right support side plate 21 of the second feed pan 18. In this way, the space between the second reducing port 23 and the upper surface of the second feed pan 18 can be shielded without a gap. In addition, since the shielding member 25 of the present embodiment is an elastic sheet member, there is no possibility that the swing of the swing sorter 7 will be hindered. In the figure, a member denoted by reference numeral 27 is an inclined guide plate for preventing the accumulation of processed materials and debris on the bracket 26.

  In the threshing apparatus 1 according to the embodiment of the present invention, the second reduction port 23 is located on one side of the chaff sheave 14, and the second reduction product reduced from the second reduction port 23 falls directly onto the chaff sheave 14. In this arrangement, an overflow prevention member 28 for preventing overflow of the second reduced product that has fallen on the chaff sheave 14 is provided on the second reduction port side of the rear end portion of the chaff sheave 14. For example, a plate member having a width substantially equal to that of the space 24 is erected at the rear end portion of the space 24 to function as the overflow prevention member 28.

  In this way, an arrangement configuration is adopted in which the second reduced product reduced from the second reduction port 23 falls directly onto the chaff sheave 14, but even if the second reduction amount increases rapidly. , Overflow can be avoided. As a result, it is possible to prevent a reduction in sorting accuracy and sorting efficiency due to overflow, an increase in scattering outside the machine, and the like. Further, since it is not necessary to open the opening of the chaff sheave 14 in preparation for a temporary sudden increase in the second reduction amount, it is possible to maintain a good sorting performance in the chaff sheave 14.

  The overflow prevention member 28 may be provided on the side wall portion 22 side, but is preferably provided on the swinging sorter 7. In this way, since the overflow prevention member 28 swings together with the swing sorter 7, the second reductant collected in the vicinity of the overflow prevention member 28 is positively loosened, and the cuff sheave 14 is clogged with the second reductant. Can be suppressed. Moreover, in the present embodiment, the overflow prevention member 28 is attached using the right support side plate 21 of the second feed pan 18, so that there is an advantage that the structure can be simplified.

  In the threshing apparatus 1 according to the embodiment of the present invention, the second reduction port 23 is located on one side of the chaff sheave 14, and the second reduction product reduced from the second reduction port 23 is the first feed pan 13 and the chaff sheave. 14, the three feed plates 29 to 31 for bringing the processed material closer to the center side of the first feed pan 13 are arranged in parallel on the second reducing port side of the first feed pan 13. is there. If it does in this way, the processed material on the 1st feed pan 13 will be brought near to the center side by the three gathering plates 29-31, and the whole area of the chaff sheave 14 can be used effectively and a good sieve selection can be performed.

  Further, when the three gathering plates 29 to 31 are arranged side by side on the first feed pan 13, the height of the central gathering plate 30 is set higher than the other gathering plates 29 and 31. In this way, while the processed material is brought closer to the center side of the first feed pan 13 by the three gathering plates 29 to 31, the two regions 13 a on the first feed pan 13 are bordered by the central gathering plate 30. In one area (left side area) 13a, since the mixing of the second reduced product is suppressed by the tall centering plate 30, it falls from the handling chamber 2 through the receiving net 6. The processed material can be sent to the chaff sheave 14 alone as much as possible to improve the sorting accuracy. In addition, the other region (right region) 13b mainly sends the second reduced product to the chaff sheave 14, so that the leakage rate of the second reduced product in the chaff sheave 14 can be improved and the sorting efficiency can be increased.

  Moreover, it is preferable that the upper end of the centering plate 30 is equal to or higher than the lower end of the receiving net 6 or the receiving net frame 6a. In this way, the processed product dropped from the handling chamber 2 via the receiving net 6 and the second product reduced from the second reduction port 23 can be separated more favorably, so that the sorting accuracy and sorting efficiency are improved. Can be further improved.

  In addition, it is preferable to provide a close-up plate 32 on the chaff sheave 14 that moves some processed products to the center side of the chaff sheave 14 while allowing some processed products to escape backward. For example, of the three plates 29 to 31 provided on the first feed pan 13, a plate 32 is disposed on an extension line of the plate 31 located on the right side (second return port side), and the plate While the upper end of 32 is fixed using the lower surface of the second feed pan 18, a gap 33 is provided between the lower end of the abutting plate 32 and the chaff sheave 14 for allowing some processed material to escape backward. To do. In this way, the unevenness of the processed material on the chaff sheave 14 can be eliminated, and the sorting accuracy and sorting efficiency can be further improved.

  According to the present embodiment configured as described, the processed material dropped from the handling chamber 2 to the sorting chamber 5 through the receiving network 6 is sorted by the swing sorting body 7 provided in the sorting chamber 5 and sorted. In the threshing device 1 for reducing the second product thus obtained onto the swinging sorter 7 from the second reducing port 23 provided in the side wall portion 22 of the sorting chamber 5, the swinging sorter 7 is connected via the receiving net 6. The first feed pan 13 that receives the processed material that has fallen from the handling chamber 2 and sends it to the rear, the chaff sheave 14 that sifts and selects the processed material behind the first feed pan 13, and the second processed spiral after the chaff sheave 14. And a second feed pan 18 that receives the processed material dropped from the rear part of the handling chamber 2 into the sorting chamber 5 on the top of the chaff sheave 14 and sends it to the rear, and drops it on the stroking rack 16. When configured and shared The second reduction port 23 is arranged on one side of the chaff sheave 14 and the second feed pan 18, and further, the second feed pan 18 is reduced from the second reduction port 23 on one side. Since the space 24 for directly dropping the second reduced product onto the chaff sheave 14 is formed, the arrangement is such that the second reducing port 23 is located on one side of the chaff sheave 14 and the second feed pan 18. Further, it is possible to prevent the second reduced product from getting on the second feed pan 18 and to avoid the increase of the second reduced product and the outside scattering.

  In addition, an opening 21 a for allowing the second reduced product that has fallen directly onto the chaff sheave 14 to flow into the lower region of the second feed pan 18 is formed on one side surface portion of the second feed pan 18. The processing capacity of the second reduced product can be improved. As a result, it is possible to prevent the second reduced product from entering the overflow state on the chaff sheave 14, and to avoid the increase in the second product and the outside scattering due to the overflow.

  In addition, since the shielding member 25 that shields between the second reducing port 23 and the upper surface of the second feed pan 18 is suspended in the sorting chamber 5, the second reduced product gets on the second feed pan 18. Can be surely prevented.

It is an internal side view of a threshing apparatus. It is the perspective view which looked at the threshing apparatus from the back upper right. It is the perspective view which looked at the 4th mouth of the threshing apparatus from back left upper direction. It is the perspective view which looked at the inside of the threshing apparatus from back left upper direction. It is the perspective view which looked at the inside of the threshing apparatus from the front left upper part. It is the perspective view which looked at the inside of the threshing device (a part of the first feed pan and the shielding member are omitted) from the upper left front. It is the perspective view which looked at the rocking sorter from back upper right. It is a top view of a rocking sorter. It is a top view of a rocking sorter (the 2nd feed pan is omitted). It is sectional drawing of an oscillation sorter.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Threshing apparatus 2 Handling room 5 Sorting room 6 Receiving net 6a Receiving net frame 7 Oscillating sorting body 9 First spiral 10 Second spiral 13 First feed pan 14 Chaff sheave 16 Strolac 18 Second feed pan 21 Right support side plate 21a Opening Part 22 Side wall part 23 Second reduction port 24 Space 25 Shielding member

Claims (3)

The processed material dropped from the handling chamber to the sorting chamber via the receiving net is sorted by the swing sorter provided in the sorting chamber, and the second sorted product is second reduced provided on the side wall of the sorting chamber. In the threshing device that reduces from the mouth onto the rocking sorter,
The swing sorter is
A first feed pan that receives the processed material dropped from the handling chamber via the receiving net and sends it to the rear;
A chaff sheave that sifts and sorts the processed material behind the first feed pan;
A straw rack that allows the processed material to leak into the second collection section behind the chaff sheave;
It is provided with a second feed pan that receives the processed material that has fallen from the rear part of the handling chamber into the sorting chamber above the chaff sheave and sends it to the rear, and drops it onto the strok rack,
It is arranged so that the No. 2 return port is located on one side of the chaff sheave and the second feed pan,
In addition, a threshing device is characterized in that a space is formed on one side of the second feed pan to allow the second reduced product reduced from the second reduction port to drop directly onto the chaff sheave.   The threshing according to claim 1, wherein an opening for allowing the second reduced product that has fallen directly onto the chaff sheave to flow into the lower region of the second feed pan is formed on one side surface of the second feed pan. apparatus.   The threshing apparatus according to claim 1 or 2, wherein a shielding member that shields between the second reduction port and the upper surface of the second feed pan is suspended in the sorting chamber.

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