JP2007159487A - Thresher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce mixing of waste straws in a first receiving gutter for receiving separated grains dropped from the front to the intermediate part of a shaking separation shelf or a tailing receiving gutter for receiving the separated grains mixed with the waste straws and dropped from the rear of the shaking separation shelf and to improve threshing efficiency in a thresher. <P>SOLUTION: The thresher is obtained as follows. A first shelf top 4 rising and tilting from the first receiving gutter 3 having a first transfer screw 2 at the rear of a first winnower 10 toward the rear upper position is extendedly installed to the vicinity in a lower position at the terminal end of a chaff sieve 5 of the shaking separation shelf 1 under the shaking separation shelf 1. A first rear shelf top 6 suitably separated to the rear side of the first shelf top 4 and tilted nearly parallel to the first shelf top 4 is arranged. Furthermore, a second winnower 7 for blowing up a separation wind between the first shelf top 4 and the first rear shelf top 6 is installed and a first rear receiving gutter 8 for receiving the grains is provided under the first rear shelf top 6. A first rear screw 9 is installed in the first rear receiving gutter 8. The transfer destination of the first rear screw 9 is made to communicate on the first shelf top 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a threshing machine mounted on a combine or a harvester.

  Grains are mixed in the processed material such as sawdust generated in the handling chamber when threshing with a threshing machine or a piece of weed mixed during cutting. In order to collect the grains, a dust removal processing chamber is provided in which the processing object coming out of the handling room of the threshing machine or the second processing chamber is further stirred to thresh. Grains taken directly from the handling room and grains taken out from the dust processing chamber are mixed with immature grains and swarf, so they swing to eliminate this immature grain and swarf. A sorting device is provided in the lower part of the handling chamber.

  The oscillating sorter receives the grains and sorts them while oscillating. The swaying sorter blows the sorting wind from the lower side to the upper side of the oscillating sorter so as to float the dust on the oscillating sorter. However, it is made up of Kara which blows out to the dust outlet.

  In addition to the first Chinese potato provided at the front and lower side of the swing sorting device, the Chinese potato is provided with a second hot potato at the lower center of the oscillating sorting shelf as described in Patent Documents 1, 2, and 3 below. There is also a configuration that blows off the dust on the stroller at the rear end of the shelf.

Further, Patent Document 4 describes a configuration in which first, second, and third grain recovery spirals are provided below the rocking sorter so that grains can be quickly recovered.
JP 2001-95359 A JP 2004-16200 A JP 2005-95073 A Japanese Patent Laid-Open No. 62-28843

  The technology for providing the second karakomi described in Patent Documents 1, 2, and 3 described above is to prevent the swarf and the like on the Strollack from falling down and mixing into the grain. It is only for strengthening and assisting the sorting wind, and does not reduce the amount of swarf or the like mixed in the threshing grains falling from the middle part of the swing sorting shelf.

  Moreover, in the structure which provided the 1st, 2nd, 3rd grain collection | recovery spiral below the rocking | pulverization sorting apparatus described in patent document 4, it is mixed in a grain only by increasing the grain collection means. There are not a few scraps.

  Therefore, in the present invention, the first receiving bowl that receives the selected grain falling from the front part to the middle part of the swing sorting shelf and the sorted grain that is mixed with the sawdust falling from the rear part of the swing sorting shelf are received. An object is to improve the threshing efficiency by reducing the mixing of sawdust into the second receiving bowl.

The above object of the present invention is achieved by the following configuration.
That is, in the first aspect of the present invention, below the swing sorting shelf 1, the first tilted upward from the first receiving rod 3 having the first transfer helix 2 behind the first tang 10 toward the upper rear side. The rearmost shelf which extends the shelf tip 4 to the vicinity of the lower end of the chaff sheave 5 of the swing sorting shelf 1 and is appropriately separated to the rear side of the first shelf tip 4 and inclined substantially parallel to the first shelf tip 4. A tip 6 is provided, and further, a second tang 7 that blows the sorting wind between the first shelf tip 4 and the rearmost shelf tip 6 is provided, and the first portion that receives the grain below the rearmost shelf tip 6 is provided. A threshing machine is provided in which a rear receiver 8 is provided, a rearmost spiral 9 is provided in the rearmost receiver 8, and a transfer destination of the rearmost spiral 9 is communicated with the first shelf tip 4. Is.

  The action of claim 1 is that the grain that has been sorted and dropped by the end of the chaff sheave 5 of the swing sorting shelf 1 is received by the first shelf tip 4 and the swarf and the like are blown rearward by the sorting wind of the first tang 10. , It is collected in the first receptacle 3. Grains of mixed swarf falling from the back of the chaff sheave 5 are received by the rearmost shelf tip 6 and collected in the rearmost cradle 8 while the swarf etc. are blown rearward by the sorting wind of the second tang 7 Further, the grain is supplied onto the shelf tip 4 first, receives the sorting wind of the first Chinese koji 10 and blows off the sawdust and the like again, and is sent into the first receiving bowl 3.

The grain mixed with swarf falling from the end of the swing sorting shelf 1 is sent to the second processing path of the second transfer spiral 12 and sent again to the dust removal processing chamber as the second processed product to be subjected to the sorting action.
The invention according to claim 2 is the threshing machine according to claim 1, wherein a sorting plate 11 having a sorting hole formed at the terminal end of the first shelf tip 4 is provided.

  In addition to the action of claim 1, the action of claim 2 is that the sawdust contained in the selected grain falling in the vicinity of the chaff sheave 5 is received by the sorter 11, so that While heavy swarf that is difficult to be immediately blown off by the sorting wind is staying on the sorting body 11, it will eventually be blown backward, preventing it from being mixed into the selected grain.

  Since the present invention is configured as described above, according to the first aspect of the present invention, the selected grain that has fallen up to the chaff sheave 5 of the swing sorting shelf 1 is received by the first shelf tip 4 and the sorting style of the first Chinese potato 10 is selected. As a result, the amount of swarf, etc., which is effectively removed, drops to the first cradle 3 and is immediately recovered as a sorted grain, By removing the swarf with the sorting style of the second Chinese style 7 and supplying it on the first shelf 4, the sorted grains further increase. As a result, the amount reprocessed as the second processed material is relatively reduced, the selection load of the second processed material is reduced, and the selection efficiency is improved.

  Moreover, in invention of Claim 2, in addition to the effect of Claim 1, the heavy sawdust which is hard to be blown off by the selection wind is removed effectively on the selection body 11, and it mixes with the selected grain. I can prevent it.

10 and 12 show a combine equipped with a threshing machine embodying the present invention.
A cutting device 17 is provided in front of the chassis 16 having the traveling device 15. The cutting device 17 includes a plurality of weeding tools 18 for weeding the planted cereals, a plurality of pulling devices 19 for causing the planted cereals, a cutting blade 20 for harvesting the planted cereals, and the cutting blade 20 It is comprised by the stock former conveying apparatus 21 which pinches | interposes and cuts the cereal crops harvested by.

  Above the chassis 16, a threshing machine 23 having a feed chain 22 that takes over and transports the cereal straw conveyed from the stock transportation apparatus 21, and a threshing machine 23 on the right side of the threshing machine 23. A grain tank 24 that temporarily stores the grain that has been threshed and the operation unit 25 that is located in front of the grain tank 24 and that performs various operations such as operation of a combine is provided. Behind the threshing machine 23 is provided a cutter device 26 for cutting the threshed waste.

  When the harvesting operation is performed by advancing such a combine, the cereals planted in the field scene are divided by the weeding tool 18 and cut by the cutting blade 20. Thereafter, the harvested cereals are conveyed rearward by the stock transporter 21 and transferred to the feed chain 22 of the threshing machine 23, while the cereals are conveyed rearward by the feed chain 22 by the threshing machine 23. The threshing-sorted and threshed grains are cut short by the cutter device 26 and sprayed on the field scene.

Next, the threshing machine 23 is demonstrated based on FIGS.
In the threshing machine 23, a handling chamber 29 having a handling cylinder 28 having a handling net 27 is pivoted on one side, and on one side of the handling chamber 29, dust discharged from the processing chamber 29 is received and processed. A dust removal treatment chamber 32 is provided in which a dust removal treatment cylinder 31 having a treatment net 30 is pivoted. A swing sorting shelf 1 is provided below the handling chamber 29 and the dust disposal chamber 32.

  Further, a second processing chamber 35 including a second processing cylinder 33 and a second processing cylinder receiving rod 34 (which may be a net or a lattice) is configured in front of the dust removal processing cylinder 31. In the present embodiment, the second processing cylinder 33 is on the one side of the grain tank 24 on the handling cylinder 28, and is configured integrally with the dust processing cylinder 31 in front of the dust processing cylinder 31. The second processing cylinder 33 basically processes a second product. Since the second treatment cylinder 33 is supported by the second treatment cylinder shaft 37, the dust removal treatment cylinder 31 and the second treatment cylinder 33 are integrally supported.

  Since the workpiece leaked from the handling net 27 is taken into the second treatment chamber 35, the second treatment cylinder 33 is not limited to the second workpiece, and the workpiece that has entered from the treatment chamber 29 is also included. It is configured to process together. The handling net 27, the second treatment cylinder receiving rod 34, and the dust removal treatment net 30 are provided below the treatment cylinder 28, the second treatment cylinder 33, and the dust removal treatment cylinder 31, respectively.

  The dust removal processing teeth 31a of the dust removal processing cylinder 31 need to be fixed in such a direction as to send the cereal from the rear portion of the handling chamber 29 in the lower direction of the sorting wind feed direction. In the present embodiment, the dust removal treatment teeth 31 a are wound around the outer peripheral surface of the dust removal treatment drum 31 and have a spiral shape.

  Below the handling chamber 29, the second processing chamber 35, and the dust removal processing chamber 32, an oscillating sorting shelf 1 that receives and sorts the object to be sorted is installed. 1 is provided with a first tang 10 on the start side of the sorting air feed direction, and a first air passage 40 and a second air passage 41 are provided on the lower side of the sorting air sent from the first tang 10 in the feeding direction. The first transfer spiral 2 is provided on the lower side of the first air passage 40 and the second air passage 41, and the second transfer spiral 12 is provided on the lower side of the first transfer spiral 2 in the sorting air feed direction. Provided.

  The first receiving rod 3 provided at the bottom of the first transfer helix 2 has its front side integrally connected to the casing 42 of the first pot 10 and the rear portion extending to the first shelf tip 4. The first shelf tip 4 is provided to be inclined obliquely upward toward the end of the chaff sheave 5 of the upper swing sorting shelf 1, and a sorting body 11 having a sorting hole is attached to the upper end thereof. The sorting body 11 is composed of a plate or a net provided with sorting holes, and the hole diameter of the sorting holes is larger than the grain diameter, and the sorting wind of the following second tang 7 is allowed to pass through, so that only the grain is at the bottom. It falls on the rear shelf tip 6 so that sawdust and the like are blown away backward. The first transfer spiral 2 is connected to the spiral of the first cereal cylinder 43 so as to feed the grains to the glen tank 24.

  On the lower side of the first shelf tip 4, a second tang 7 made of a cross flow fan is provided horizontally in the middle of the first transfer spiral 2 and the second transfer spiral 12. The upper part of the second tang 7 has a front side at the lower surface of the first shelf tip 4 and a rear side at the rearmost shelf tip 6, and a third air passage 44 toward the dust outlet (third port) 39. The air is formed and sucked from below, and the selected air is blown into the third air passage 44. The rearmost shelf tip 6 is provided substantially parallel to the first shelf tip 4, and its upper end outlet is opened away from the sorting body 11 of the first shelf tip 4. At the rear end of the rearmost shelf tip 6, a plate member 66 is attached with bolts 47 and nuts 48, and the rear end position is adjusted back and forth depending on the grain type and wetness, etc., and the grain intake rate from the second processed product To change.

  Further, an opening 45 is formed in the lower part of the rearmost shelf tip 6, and the rearmost spiral 9 is laid horizontally below the opening 45. The receiving surface toward the opening 45 of the rearmost shelf tip 6 is located below the third air passage 44 so that the grains easily fall onto the receiving rod 8 of the rearmost spiral 9. The receiving bowl 8 is formed integrally with the casing 46 of the second Chinese style bowl 7.

  Since the first shelf tip 4 and the rearmost shelf tip 6 are assembled integrally with the swing sorting shelf 1 so as to swing, seal members 61, 62, 63 made of rubber plates are provided as shown in FIG. It is provided to prevent grains from intermingling and leaking.

The transfer path of the rearmost spiral 9 is connected to a reduction cylinder 52 that pivotally supports the first reduction helix 51 so that the grains are sent to the position on the first shelf 4 where the first tang 10 is subjected to wind sorting. ing. (See Figure 9)
This reduction cylinder 52 is provided on the side of the machine frame provided with the first cereal cylinder 43 and the second cereal cylinder 50 so as to cross the axis position of the second tang 7 and sandwiched between both cylinders 43, 50. So that it does not protrude in the direction. (See Figure 9)
Grains mixed with sawdust (second item) falling from the rear of the swing sorting shelf 1 fall into a second receiving rod 49 equipped with the second transfer spiral 12, and in this case, the second tang In response to the strong sorting wind of No. 7, light soot is blown off to the dust outlet 39 at the rear.

The transfer path of the second transfer spiral 12 is connected to a second cereal cylinder 50 for cerealing the second item to the second processing chamber 35.
The second tang 7 and the rearmost spiral 9 are pivoted side by side between the first transport spiral 2 and the second transport spiral 12 so that the rearmost spiral 9 approaches the second transport spiral 12. The position of the shaft is positioned below the line connecting the shaft positions of the second tang 7 and the second transfer spiral 12.

  The spiral diameters of the first transfer spiral 2, the second transfer spiral 12, and the rearmost spiral 9 are in the relationship of the first transfer spiral 2> the second transfer spiral 12> the rearmost spiral 9. The difference in diameter is determined by the amount of processing.

  The swing sorting shelf 1 includes a transfer shelf 55 for transferring the fallen cereals backward, a grain sheave 53 for sorting the cereals, a chaff sheave 5 for sorting the second thing, and a dust removal process. It is composed of a stroller 56 that loosens the material and collects the scorpion grains and also transfers the discharged waste product to the outside and discharges it.

  As shown in FIG. 8, the swing sorting shelf 1 configured as described above has a lower front end attached to a swing shaft 62 by an eccentric arm 63, and a roller 64 provided at a lower rear end is provided obliquely to the machine frame. It fits into the guide 65 and is swung back and forth diagonally.

The suction fan 57 is for discharging light dust in the sorting chamber 58 to the outside of the machine, and is provided at a position facing the dust removal processing cylinder 31 with respect to the handling cylinder 28.
FIG. 9 is a power transmission system diagram of the threshing machine. The power of the engine mounted on the combine is input to the tang shaft 66 to drive the first tang 10, and the belt 67 is transmitted from the tang shaft 66 to the swing shaft 62. At the same time, power is transmitted by the belt transmission 69 to the first transfer helix 2, the second hot spring 7, the second transfer helix 12 and the counter shaft 68.

  The swing shaft 62 is gear-transmitted 70 to the feed chain 22, the belt is transmitted 71 from the first transfer spiral 2 to the rearmost spiral 9, and the countershaft 68 drives the dust suction fan 57 and the cutter device 26. The rearmost spiral 9 drives the first reduction spiral 51 by the chain transmission 72.

Next, the threshing selection state in the threshing machine configured as described above will be described.
The cereals that have been transported by the stock transporting device 21 are handed over to the start end of the feed chain 22 of the threshing machine 23, and the cereals that have been handed over to the feed chain 15 are being transported rearward, 28 and the handling net 27 are threshed. A part of the threshed threshing falls on the swing sorting shelf 1 and is sorted by the swinging action of the swing sorting shelf 1 and the wind sorting action from the first tang 10, and in the first transfer spiral 2. Grain that is taken into the top and taken into the first transfer spiral 2 is configured to be temporarily stored in the Glen tank 24.

  The remaining threshing in the handling chamber 29 is transferred to the dust removal processing chamber 32, and a part of the threshing is taken into the second processing chamber 35 along the way. The threshing taken into the second processing chamber 35 is threshed by the interaction between the second processing cylinder 33 and the second processing cylinder receiver 34 while being conveyed to the upper side in the sorting wind feed direction (particularly branch infarction grains). Is processed) and falls onto the lower swing sorting shelf 1.

  In the dust disposal chamber 32, the mesh of the dust disposal network 30 is rough, so that some short sawdust falls on the swing sorting shelf 1, and long sawdust that has not fallen falls into the dust disposal chamber. It is conveyed to the terminal end of 32 and is forcibly discharged onto the Strollac 3. While the object to be processed is thus transported in the dust removal treatment chamber 32, the dust removal treatment cylinder 31 and the dust removal treatment cylinder 31 are further threshed, and the threshing is solved. In this configuration, the so-called scorpion grains mixed in are taken out and dropped onto the lower swing sorting shelf 1 and further collected by the second transfer spiral 12.

Of the threshing that has been transported to the terminal end of the handling chamber 29, the threshing that has not been taken into the dust disposal chamber 32 falls on the swing sorting shelf 1 below.
The grains that have fallen on the swing sorting shelf 1 are dropped by the swing action and the sorting wind of the first and second halves 10 and 7, and the swarf and the like are sent back and discharged. Grains that fall from the front of the swing sorting shelf 1 to the end of the chaff sheave 5 are received by the first shelf tip 4 and collected into the receptacle 3 of the first transfer helix 2, through the first cereal cylinder 43. It is stored in the Glentank 24.

  Part of the grain that falls further backward from the end of the chaff sheave 5 is received by the rearmost shelf tip 6, the swarf is removed by the sorting air of the second Karatsu 7, and transferred most from the rearmost spiral 9. It is sent to the spiral 2 side.

  In spite of the swinging action of the swinging sorting shelf 1 and the action of the sorting wind from the first and second tangs 10 and 7, the remaining grains that have not been taken into the first transfer helix 2 are Then, it is sent further rearward together with other dusts and taken into the second transfer spiral 12. The second product taken into the second transfer helix 47 is returned to the lower side in the sorting air feed direction of the second processing chamber 35 by the second lifting cylinder 50, and is removed from the handling chamber 29. Then, while being transported to the upper side of the sorting wind feed direction, it is transported while being threshed by the interaction with the second processing cylinder receiving rod 34, and again forcibly placed on the lower swing sorting shelf 1 It will fall.

  After the threshing, the waste is handed over from the terminal end of the feed chain 22 to the start end of the waste chain 38, and then sent to the cutter 26 to be cut short and released onto the field below. It has a configuration.

Front view of threshing machine Partially enlarged front sectional view of threshing machine Flat section of threshing machine Cross section of thresher back Flat section of threshing machine Left sectional view of threshing machine Left sectional view of threshing machine Front view of threshing machine Power transmission path diagram of threshing machine Combine front view Top view of the combine

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Swing sorting shelf 2 First transfer spiral 3 First receptacle 4 First shelf tip 5 Chaff sheave 6 Rearmost shelf tip 7 Second Karachi 8 Rearmost receiving rod 9 Backmost spiral 10 First Karachi 11 Sorted body

Claims (2)

  Below the swing sorting shelf (1), the first shelf tip that inclines upward from the first receptacle (3) having the first transfer spiral (2) behind the first tang (10) toward the upper rear ( 4) is extended to the vicinity of the lower end of the chaff sheave (5) of the swing sorting shelf (1), and is appropriately separated to the rear side of the first shelf tip (4) to be substantially parallel to the first shelf tip (4). The rearmost shelf tip (6) which is inclined to the rear, and further the second tang (7) which blows the sorting wind between the first shelf tip (4) and the rearmost shelf tip (6), A rearmost receiving bowl (8) for receiving the grain is provided below the rearmost shelf (6), and a rearmost spiral (9) is provided in the rearmost receiving bowl (8). A threshing machine in which the transfer destination of the rear spiral (9) is communicated with the first shelf tip (4).   The threshing machine according to claim 1, wherein a sorting plate (11) having a sorting hole is provided at a terminal portion of the first shelf tip (4).

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