JP3784338B2 - Threshing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a threshing device including a handling cylinder that rotates around an axial center of a front and rear of a handling chamber.
[0002]
[Prior art]
The threshing device is configured to provide a dust feeding port at the rear end of the handling chamber and to discharge dust such as straw scraps generated in the handling chamber from the dust feeding port.
[0003]
[Problems to be solved by the invention]
In the said threshing apparatus, conventionally, when the grain flows to the rear part of the handling chamber without falling from the receiving net, it has been easy to flow out from the dust feeding port together with the straw waste. As a result, the grains are easily discharged out of the threshing machine together with dust such as straw scraps.
[0004]
The objective of this invention is providing the threshing apparatus which is easy to avoid a grain loss, while being hard to mix dust into a grain.
[0005]
[Means for Solving the Problems]
The configuration, operation, and effect of the invention according to claim 1 are as follows.
[0006]
〔Constitution〕
A threshing device including a handling cylinder that rotates around an axis about the front and rear of the handling room,
A receiving- net-side partition plate that provides resistance to the flow of threshing processed material toward the rear of the handling chamber is installed at the site located just before the dust-feeding port of the handling chamber's receiving net, and is opposed to the position just before the dust-feeding port of the handling chamber top plate. The top plate side partition plate that gives resistance to the flow of the threshing processed product toward the rear of the treatment room is provided at the site to be processed,
The length of the lower plate portion located thresher below the受網side partition plate projects into thresher turning axis side from受網, threshing at above said lower plate portion of the受網side partition plate The length protruding from the receiving net on the side opposite to the feed chain existing side to the barrel rotating shaft core side, and the length that the top plate side partition plate protrudes from the chamber top plate to the barrel rotating shaft core side Smaller than
Located on the upper plate portion located above the lower plate portion of the receiving net side partition plate and on the opposite side of the threshing feed chain presence side, is located at a placement height lower than the placement height of the barrel rotation shaft core. A portion projecting longer from the location to the treatment barrel rotation axis side than the lower plate portion over a location located at an arrangement height higher than the arrangement height of the treatment barrel rotation axis;
The upper end portion of the upper plate portion of the receiving net side partition plate is formed into a thin shape in which the protrusion from the receiving net is shortened as it reaches the upper end as viewed in the barrel rotation axis direction,
The size of the processed material dropping hole in the portion located on the rear side of the handling chamber of the receiving net is made larger than the size of the processed material dropping hole in the portion located on the front side of the handling chamber.
[0007]
[Action]
Even if the threshing product flows to the rear part of the handling chamber and is positioned immediately before the dust feeding port, it is difficult to immediately flow out of the dust feeding port due to resistance by the partition plate provided on the receiving net and the handling chamber top plate. It stays in front of the dust feed port, and is easily handled and disassembled by the handling cylinder. As a result, the grains that have flowed to the rear of the handling chamber are also unlikely to flow out of the dust feeding port, and are likely to leak from the receiving net. The grains that have entered the lump of straw are also broken up and easily leak from the receiving net. Since the processed material falling hole in the rear side of the receiving chamber is large, the grains easily leak from the receiving net.
[0008]
Since the size of the processed material drop hole at the rear part of the receiving chamber is larger than that of the front part of the receiving chamber, dust may leak from the receiving net and enter the grain. It is possible to make it easier for grains to fall from the receiving net with the trouble of the dust outlet.
[0009]
〔effect〕
Therefore, it is possible to improve the recovery efficiency so that the grains easily leak from the receiving net and are not easily discharged out of the threshing machine together with dust. In addition, on the front side of the handling chamber, it is difficult for dust to be mixed into the grain, and the grain can be collected with little dust.
[0010]
The structure, operation, and effect of the invention according to claim 2 are as follows.
[0011]
〔Constitution〕
In the configuration of the invention according to claim 1, the rear chamber portion of the receiving net is made of sheet metal, and the front chamber portion is made of synthetic resin.
[0012]
[Action]
Because the front part of the receiving net is made of resin and the rear part of the receiving net is made of sheet metal, even if the grain is moist compared to that made entirely of resin or sheet metal It can be made difficult to adhere, and even if the threshing processed material stays and is subjected to a load or friction, it is difficult to wear even if the processed material dropping hole is large, and it can be made difficult to deform due to its strength.
[0013]
〔effect〕
Therefore, what has good grain recovery efficiency can be obtained in a state of being highly threshing and capable of threshing even if the cereal straw is slightly wet.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, a handling chamber 1 located at the upper part of the front end side in the threshing machine body, and a handling cylinder 2 positioned inside the handling chamber 1 so as to be able to be driven and rotated around an axis 2 a facing the front and rear of the handling chamber. Sorting provided with threshing part A provided, a swinging and swinging sorter 10 having a front end located under the handling chamber 1 and a swinging sorter 20 located under the front end of the shaking sorter 10 The threshing device for the combine is configured by the part B and the recovery part C provided with the first screw conveyor 25 and the second screw conveyor 26 that are arranged in the front-rear direction of the threshing machine body at the bottom of the sorting part B. It is.
This threshing device collects grains by threshing the harvested cereals such as rice and wheat harvested by the harvesting unit of the combine, and is configured in detail as follows.
[0015]
The threshing section A sandwiches and conveys the stock side of the harvested cereal rice cake in the rear direction of the machine body by the threshing feed chain 3, supplies the tip side to the handling chamber 1, threshing the tip side by the handling cylinder 2, Straw is discharged from the dust feed port 4 located at the rear end of the handling chamber 1 by the threshing feed chain 3, and threshing products such as grains leak from the receiving net 5 of the handling chamber 1, and threshing processing such as straw scraps is performed. An object is discharged from the dust feed port 4.
[0016]
The swing sorting device 10 is driven so that the front end side is supported by the threshing machine body via the swing link 11 and the rear end side is supported by the threshing machine body via the eccentric drive mechanism 12, and reciprocally swings in the front-rear direction of the threshing machine body. And the front side of the receiving net 5 which is a portion located on the front side of the handling chamber and has a length L1 corresponding to about 2/3 of the total length of the receiving net 5 in the longitudinal direction of the handling chamber It is arranged so that it is positioned below the portion 5a (FIG. 4) and is attached to the front end side of the sorting frame 13, and is arranged so that the front end portion is located near the rear end portion of the grain pan 14 below. Further, the rear portion 5b of the receiving net 5 which is located on the rear side of the handling chamber and has a length L2 corresponding to about 1/3 of the total length of the receiving net 5 in the front-rear direction of the handling chamber. Place the front end side below (Fig. 4) and attach it to the sorting frame 13 The open / close chive sheave 30, the fixed chaff sheave 15 that is arranged so that the front end is positioned near the rear end of the open / close chaff sheave 30 and is attached to the sorting frame 13, and the front end is positioned near the rear end of the fixed chaff sheave 15. The Strollac 16 that is arranged and attached to the sorting frame 13, the sorting structure 17 that is arranged above the opening and closing chaff sheave 30 and the fixed chaff sheave 15 and is attached to the sorting frame 13, and the lower side of the opening and closing chaff sheave 30 Are arranged so as to be positioned on the sorting frame 13 and attached to the sorting frame 13.
[0017]
The fixed chaff sheave 15 is composed of a plurality of fixed chaff flip plates arranged in the front-rear direction of the swing sorting device 10 on the rear side of the swing sorting device 10 with respect to the open / close chaff sheave 30 and fixed to the sorting frame 13. The opening is fixed.
[0018]
As shown in FIG. 2 and the like, the sorting structure 17 includes a Glen pan 17a having a front end side located below the dust feeding port 4 and a rear end located above the rear end portion of the open / close chaff sheave 30, and the Glen pan 17a. The strobac 17b, which extends backward from the plurality of positions in the lateral direction of the rocking sorter on the upper surface side of the jogger and extends backward, and the extending end is located above the fixed chaff sheave 15, and the rocking of the grain pan 17a. A sieve that extends rearwardly from a plurality of locations in the horizontal direction of the sorting device and has an extended end located above the fixed chaff sheave 15 and one at a time between the Strollacs 17b. It is comprised by the line 17c.
[0019]
As shown in FIG. 2 and the like, the open / close chaff sheave 30 is constituted by a plurality of movable chiff flip plates 31 arranged in the front-rear direction of the swing sorting device 10 between the left and right side frame portions 13a of the sorting frame 13. It is.
As shown in FIG. 3, FIG. 6, etc., the upper end side of each end of each of the plurality of movable cha-flip plates 31 has a connecting pin 32 connected to the movable cha-flip plate 31 so as to be relatively rotatable, It is attached to the side plate portion 13a of the sorting frame 13 via a single support plate 33 supporting the connection pin 32 of the movable char flip plate 31 so as to rotate around the axis 32a of the connection pin 32. . One connecting member 34 is attached to the ends of the connecting pins 32 protruding from the support 33 of the connecting pin 32 to the opposite side of the movable cha-flip plate 31. On both ends of the movable char flip plate 31, an interlocking pin 35 whose one end freely enters a pin coupling portion 31 a located on the lower end side of each movable cha flip plate 31, and the interlocking of each movable char flip plate 31. The lower end side of each movable chuck flip plate 31 is interlocked with one interlocking member 36 fixed to the other end side of the pin 35.
[0020]
As shown in FIGS. 5 and 7, the outer surface of the side frame portion 13 a from the arc-shaped elongated hole 13 b of the side frame portion 13 a of the interlocking pin 35 attached to one end side of any one of the movable cha-flip plates 31. A chaff adjusting spring 37 made of a coil spring is attached over the end projecting sideward and the spring support 41a of the adjusting lever 41 supported on the outer surface side of the side frame 13a. This chaff adjusting spring 37 moves and urges the interlocking pin 35 along the elongated hole 13 b to move upward around the shaft core 32 a of the connecting pin 32, so that all the movable chuck flip plates 31 are connected to the connecting pin 32. It is configured to oscillate and oscillate around the shaft core 32a.
[0021]
In other words, a pair of adjacent movable cha-flip plates 31 of the plurality of movable cha-flip plates 31 arranged in the front-rear direction of the oscillating sorting apparatus 10 drop a processed product for leaking the sorted processed product of the open / close chaff sheave 30. A hole is formed. When the interlocking pin 35 is moved and moved along the elongated hole 13b around the axis 32a of the connecting pin 32, all the movable char flip plates 31 are interlocked around the axis 32a of the connecting pin 32. The workpiece drop hole is expanded by swinging downward, and the workpiece drop hole is contracted by swinging upward. When the total weight of the threshing products deposited on each movable chaff plate 31 changes, the chaff adjusting spring 37 changes to the extension side due to this weight change, and the interlocking pin 35 is lowered to move each movable chlip plate. Each movable chuck flip plate 31 is rocked up and down by rocking down 31 or changing to the shortening side and rocking up the interlocking pin 35. As a result, the chaff adjusting spring 37 senses the total weight of the threshing processed material deposited on the open / close chaff sheave 30, and automatically opens / closes the open / close chaff sheave 30 based on the total processed weight. In other words, the total weight of the threshing product deposited on the open / close chaff sheave 30 decreases so that the opening of the treatment drop hole of the open / close chaff sheave 30 increases as the total weight of the threshing product deposited on the open / close chaff sheave 30 increases. The opening / closing adjustment is performed so that the opening degree of the processed material drop hole of the opening / closing chaff sheave 30 is reduced.
[0022]
Thereby, the rocking sorter 10 sorts the threshing processed product as follows.
That is, the threshing processed material dropped and supplied from the front portion 5a of the receiving net 5 is received by the Glen pan 14 and sorted while being conveyed to the rear side of the swing sorting device, and dropped and supplied from the dust feed port 4 of the handling chamber 1. The threshing process is received by the sorting structure 17 and sorted while being conveyed to the rear side of the swing sorting device. Each of the sorting processed product from the grain pan 14, the threshing processed product dropped from the rear portion 5 b of the receiving net 5, and the sorting processed product dropped from the rear end of the grain pan 17 a of the sorting structure 17 is opened and closed by the chaff sheave 30. The sorting process is performed while receiving and transporting it to the rear side of the swing sorter. At this time, when the total weight of the processed material deposited on the open / close chaff sheave 30 increases, the opening degree of the open / close chaff sheave 30 is adjusted to the enlargement side for automatic adjustment based on weight detection by the chaff adjustment spring 37, so that the grains When the total weight of the processed material deposited on the open / close chaff sheave 30 is reduced while making it easy to leak, the opening degree of the open / close chaff sheave 30 is reduced for automatic adjustment based on weight detection by the chaff adjustment spring 37. Adjusting to make it difficult to leak dust, such as straw scraps, and sorting. The sorting processed product from the rear end of the open / close chaff sheave 30 and the sorting processed product dropped and supplied from the rear end of the sorting structure 17 are sorted by the fixed chaff sheave 15 and the Strollac 16 while being conveyed to the rear side of the swing sorting device. To process. The sorting processed material that has leaked from the open / close chaff sheave 30 is sorted by the Glen sheave 18.
[0023]
Therefore, the sorting unit B drives the threshing processed material such as the grains leaked from the receiving net 5 of the handling room 1 and the threshing processed material such as straw scraps dropped from the dust feeding port 4 of the handling room 1. The grain is sorted into grains and dust such as straw by the specific gravity sorting by the movable rocking sorter 10 and the wind sorting by the sorting wind supplied to the rear of the machine by the Kara 20 to shake the grains. The dust is dropped from the dynamic sorting device 10, and the dust is discharged together with the sorting wind from the discharge port 21 a of the dust exhaust fan 21 and the dust outlet 22 of the threshing machine located behind the swing sorting device 10.
[0024]
The collection unit C carries the first processed material leaked from the grain sieve 18 of the swing sorting device 10 to the lateral outer side of the threshing machine body by the No. 1 screw conveyor 25 located below the front end side of the swing sorting device 10. The No. 2 screw conveyor 26 positioned below the rear end side of the oscillating and sorting apparatus 10 for the second processed material dropped from each of the grain sheave 18, the fixed chaff sheave 15 and the Strollack 16 of the oscillating and sorting apparatus 10, It is transported into the threshing machine body by the lifting device 27 connected to the conveying terminal end of the No. 2 screw conveyor 26 on the lateral outside of the threshing machine body and reduced so as to be reprocessed to the front end side of the swing sorting apparatus 10. .
[0025]
As shown in FIGS. 2, 3, 4, etc., a partition plate 7 a is provided at a portion of the receiving net 5 located immediately before the dust feeding port 4, and the position immediately before the dust feeding port on the inner surface side of the handling chamber top plate 6. A partition plate 7b is provided at a portion opposite to the lower lip plate 8, and a partition plate 7c arranged so as to be aligned with the partition plates 7a and 7b in the circumferential direction of the chamber is provided on the inner surface side of the lower lip plate 8. A partition plate 9a is provided between the front side portion 5a and the rear side portion 5b, and a partition plate 9b is provided at a position in the middle of the front side portion 5a of the receiving net 5 in the front and rear direction of the chamber.
The partition plate 9b located on the front side portion 5a of the receiving net 5 and the partition plate 9a located between the front side portion 5a and the rear side portion 5b of the receiving net 5 protrude from the inside of the handling chamber toward the handling chamber. By giving resistance to the threshing processed product that flows in the front part 5a of the receiving net 5 in the rearward direction of the handling chamber, the threshing processed product stays in the handling chamber 1 to be easily treated by the handling cylinder 2, or the grain. Is easily leaked from the front portion 5a of the receiving net 5 to the Glen pan 14.
[0026]
Side portion 5b after受網5, threshing chamber top plate 6, each partition plate 7a~7c attached to the lower lip plate 8,受網5 and threshing chamber ceiling plate 6 and the threshing chamber from the inner surface of the lower lip plate 8 The threshing product stays in the handling chamber 1 and is treated by the handling cylinder 2 by providing resistance to the threshing treatment product that protrudes in the direction and flows through the rear portion 5b of the receiving net 5 toward the rear of the handling chamber. It makes it easy, and makes it easy to leak the grain from the rear part 5 b of the receiving net 5.
[0027]
As shown in FIGS. 2, 4, etc., the front portion 5 a of the receiving net 5 is a hole in which a through hole as a treatment product dropping hole 5 c is opened in a direction along the front-rear direction and the circumferential direction of the handling chamber 1. It is made of a synthetic resin plate formed by molding an ultra high molecular synthetic resin material on an opening plate, and the rear portion 5b of the receiving net 5 has a through hole as a treatment product dropping hole 5d in the front-rear direction and the circumference of the handling chamber 1. It is made of sheet metal that is pressed into a perforated plate that is open side by side in the direction along the direction. The size of the processed product drop hole 5c provided in the front portion 5a of the receiving net 5 is smaller than the size of the processed product drop hole 5d provided in the rear portion 5b.
Thereby, in the front part provided with the said receiving net front side part 5a of the handling chamber 1, even if the cereal is moist, it is difficult to adhere because of the resin made of the receiving net front side part 5a. The threshing process is performed while dropping the grain on the grain pan 14 with a uniform distribution as much as possible because of the small treated product dropping hole 5c of 5a. In the rear portion of the handling chamber 1 provided with the receiving net rear portion 5b, the grains fall easily due to the large processed material dropping hole 5d of the receiving net rear portion 5b. Threshing treatment is performed while exhibiting the required strength by the sheet metal of the net rear portion 5b.
[0028]
The height H1 projecting toward the inside of the handling chamber from the inner surface of the receiving net of the partition plate 9a located on the rear side of the two partition plates 9a, 9b included in the front portion 5a of the receiving net 5, The height is higher than the height H2 projecting from the inner surface of the receiving net of the partition plate 9b located on the front side toward the handling chamber.
[0029]
As shown in FIGS. 5 and 7, the base end side of the adjustment lever 41 having the through hole 41 b into which the end portion of the interlocking pin 35 is inserted is connected to the side wall portion of the sorting frame body 13 via the connecting pin 42. It is rotatably connected to the outer surface side of 13a. The base end side of the second adjustment lever 43 provided with a through hole 43a into which the end portion of the interlocking pin 35 is inserted is also rotatably connected to the outer surface side of the side wall portion 13a via the connecting pin 42. . Both the adjusting levers 41 and 43 can be individually swung around the axis of the connecting pin 42.
[0030]
That is, the operation portion 41c is fixed to the outer surface side of the side wall portion 13a by elastically deforming the operation portion 41c to the side away from the side wall portion 13a with the portion connecting the adjustment lever 41 to the side wall portion 13a as a swing fulcrum. The adjustment lever 41 is swung around the axis of the connecting pin 42 while being removed from the positioning protrusion 44, and the operation portion 41c of the operation lever 41 that has reached the adjustment target position is positioned by a plurality of positioning protrusions. The operating lever 41 is locked at the adjustment target position by engaging with one selected from 44, and the second adjusting lever 43 is also removed from the positioning projection 44 in the same manner as the adjusting lever 41. When the swing adjustment is performed around the core and the adjustment target position is reached, the operation portion 43b is engaged with one positioning projection 44 through the positioning hole, and the first positioning projection 44 is engaged. By locking the adjustment lever 43 at the adjustment target position, the stopper action and pushing action of the stopper portion located on both ends of the through hole 41b of the adjustment lever 41, and both ends of the through hole 43a of the second adjustment lever 43 are provided. The swing limit position of the interlocking pin 35 is set by the stopper action or pushing action of the stopper portion positioned at the position of the movable pin, or the interlocking pin 35 is pushed against the chaff adjusting spring 37 to thereby move the movable chaff plate 31. It is possible to adjust the limit position on the ascending / closing side or descending / opening side, adjust the angle range in which the movable chaff plate 31 is swung by the chaff adjusting spring 37, or adjust the spring force of the chaff adjusting spring 37. it can.
As shown in FIG. 5 and the like, a counter having one end engaged with the interlocking pin 35 through a through hole, an intermediate portion connected to the connecting pin 42 so as to be relatively rotatable, and a weight 45 on the other end. The member 46 prevents the opening / closing chaff sheave 30 from opening and closing due to the swing of the swing sorting device 10.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view of an entire combine threshing apparatus. FIG. 2 is a cross-sectional view of a part where a sorting structure and an open / close chaff sheave are arranged. FIG. 3 is a cross-sectional front view of a threshing section. Overall perspective view [Fig. 5] Plan view of the opening / closing chaff sheave opening adjustment portion [Fig. 6] Cross-sectional view of the chaff plate attachment portion [Fig.
DESCRIPTION OF SYMBOLS 1 Handling chamber 2 Handling cylinder 2a Rotating shaft core 5 of receiving cylinder 5a Receiving net 5a Handling chamber front part 5c of receiving net Processing drop hole 5b of receiving net front part of receiving chamber Handling chamber rear part 5d Receiving net Processed material drop hole 6 in the rear side of the chamber 6 Handling chamber top plate 7a, 7b Partition plate

Claims (2)

A threshing device including a handling cylinder that rotates around an axis about the front and rear of the handling room,
A receiving- net-side partition plate that provides resistance to the flow of threshing processed material toward the rear of the handling chamber is installed at the site located just before the dust-feeding port of the handling chamber's receiving net, and is opposed to the position just before the dust-feeding port of the handling chamber top plate. The top plate side partition plate that gives resistance to the flow of the threshing processed product toward the rear of the treatment room is provided at the site to be processed,
The length of the lower plate portion located thresher below the受網side partition plate projects into thresher turning axis side from受網, threshing at above said lower plate portion of the受網side partition plate The length protruding from the receiving net on the side opposite to the feed chain existing side to the barrel rotating shaft core side, and the length that the top plate side partition plate protrudes from the chamber top plate to the barrel rotating shaft core side Smaller than
Located on the upper plate portion located above the lower plate portion of the receiving net side partition plate and on the opposite side of the threshing feed chain presence side, is located at a placement height lower than the placement height of the barrel rotation shaft core. A portion projecting longer from the location to the treatment barrel rotation axis side than the lower plate portion over a location located at an arrangement height higher than the arrangement height of the treatment barrel rotation axis;
The upper end portion of the upper plate portion of the receiving net side partition plate is formed into a thin shape in which the protrusion from the receiving net is shortened as it reaches the upper end as viewed in the barrel rotation axis direction,
A threshing apparatus in which the size of the processed material dropping hole in the portion located on the rear side of the handling chamber of the receiving net is made larger than the size of the processed material dropping hole in the portion located on the front side of the handling chamber.   The threshing apparatus according to claim 1, wherein the rear portion of the receiving chamber is made of sheet metal, and the front portion of the receiving chamber is made of synthetic resin.

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