JP2016208911A - Threshing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a threshing device capable of simply and inexpensively configuring switching of presence/absence of air flow of sorting air sent to an upper face side of a grain pan and switching of strength of the sorting air in the threshing device improving sorting performance by sending the sorting air to the upper face of the grain pan.SOLUTION: The threshing device includes: an oscillation sorting body 31; and a blower fan 34 generating sorting air. The oscillation sorting body 31 includes: a grain pan 38; a chaff sieve 39; and a grain sieve 42. A conveyance face 38a conveying processing objects rearward is formed on an upper face of the grain pan 38 and the sorting air is made to flow to the conveyance face 38a side. Attachable/detachable adjustment members 52, 54, 56 are arranged in the middle of a flow passage from the blower fan 34 to the conveyance face 38a side. By attachment/detachment of the adjustment members 52, 54, 56, air flow of the sorting air flowing to the conveyance face 38a side is adjusted or presence/absence of the sorting air is switched.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a threshing apparatus that causes a sorting wind to flow on the upper surface side of a grain pan.

  The rocking sorter which sorts the processed material thawed by rocking sorting, and the blower fan which raises the sorting wind which sorts the processed material, The rocking sorter is a Glen pan arranged on the front side And a chaff sheave arranged behind the Glen pan for sorting and leaking the processed product, and a grain sheave arranged below the chaff sheave, and on the upper surface of the Glen pan, a conveying surface for conveying the processed product rearward A threshing device described in Patent Document 1 having a structure in which the sorting air is made to flow on the conveying surface side is conventionally known.

JP 2008-289383 A

  In the threshing apparatus of the above-mentioned document, the sorting ability can be improved by sending the sorting air to the upper surface side of the Glen pan, but in order to adjust the strength of the sorting wind on the Glen pan, Separate wind power adjustment means that adjusts the air volume of the selected air by configuring the outlet for discharging the selected air so that it can be opened and closed according to the amount of exhaust, or by changing the number of driving fans. Therefore, there is a problem that the cost becomes high.

  In the present invention, in the threshing device that blows the sorting wind on the upper surface side of the grain pan to improve the sorting capability, switching the presence / absence of the amount of the sorting wind blown to the upper surface side of the grain pan and switching the strength of the sorting wind. It is an object to provide a threshing device that can be configured simply and inexpensively.

  In order to solve the above-mentioned problem, firstly, it is provided with a rocking sorter 31 that performs sorting of the processed product that has been threshed by rocking sorting, and a blower fan 34 that generates a sorting wind for sorting the processed material. The swing sorter 31 includes a grain pan 38 disposed on the front side, a chaff sheave 39 disposed behind the grain pan 38 to sort and leak a processed material, and a grain sheave 42 disposed below the chaff sheave 39. In the threshing apparatus having a structure in which a conveying surface 38a for conveying the processed material rearward is formed on the upper surface of the grain pan 38 and the sorting air flows on the conveying surface 38a side, the threshing device is conveyed from the blower fan 34. Detachable adjustment members 52, 54, and 56 are provided in the middle of the flow path toward the surface 38a, and the amount of the selection air that flows toward the conveying surface 38a when the adjustment members 52, 54, and 56 are attached and detached. Either adjust, or are characterized in that the structure for switching the presence or absence of selection style.

  Secondly, a red fan arranged in the sorting chamber 22 in which the oscillating sorter 31 is arranged, on the lower front side of the oscillating sorter 31 and blows the sorting wind from the lower side toward the grain sheave 42 and the chaff sheave 39 side. 32, the blower fan 34 is an auxiliary fan that is arranged in front of the Glen pan 38 and blows the sorting air toward the transport surface 38 a, separately from the hot fan 32.

  Thirdly, by adjusting the sorting air blown from the auxiliary fan 34 to the Glen pan 38 side to the Glen sheave 42 side by the adjusting members 52, 54, 56, the amount of the sorting air flowing to the Glen pan 38 side is adjusted. Or a structure for switching the presence or absence of the sorting wind.

  According to the above configuration, the adjustment member can be attached / detached to adjust the flow rate of the sorting air blown to the upper surface side of the Glen pan, or to switch the presence / absence of the sorting air. The sorting wind to the grain pan side is strengthened, so that the sorting of the rocks can be performed efficiently by blowing off chips at an early stage of rocking sorting. The wind can be weakened or eliminated, and the grain can be prevented from splashing outside the machine. In addition, the configuration is simplified compared to a configuration in which a sorting air adjusting means for operating the rotational speed of the blower fan or automatically opening and closing the sorting air discharge port according to the amount of waste is provided. At the same time, the cost can be kept low.

  Further, the sorting chamber in which the swing sorter is disposed is provided with a tang fan arranged at the front lower side of the swing sorter 31 for blowing the sort wind from the lower side toward the glenshave 42 and the chaff sheave 39 side, According to the blower fan, which is an auxiliary fan that is arranged in front of the grain pan and blows the sorter wind toward the transport surface side, separately from the tang fan, the sorter air is placed on the upper side of the grain pan by the auxiliary fan. Can be sent stably, so the sorting ability is more stable and improved.

  Whether the selection air blown from the auxiliary fan 34 to the Glen pan 38 side is diverted to the Glen sheave 42 side by the adjusting members 52, 54, 56 to adjust the amount of the selection air flowing to the Glen pan 38 side. Or, if it is structured to switch the presence or absence of the sorting wind, the sorting wind that is diverted to weaken the sorting wind to the Glen Pan side can be used to improve the sorting ability on the Glen Sheave side that does not affect the splash outside the machine. An efficient sorting operation can be performed according to the object.

It is a left view of the general purpose combine which applied the threshing apparatus of this invention. It is the sectional side view which showed the threshing apparatus. It is the principal part side view which showed the structure of the selection part. (A) is a front perspective view of the swing sorting body showing a state where the ventilation plate is installed on the upper switching plate, and (B) is a swing sorting showing the state where the ventilation plate is installed on the lower switching plate. It is a front perspective view of a body. (A) thru | or (C) is the figure which showed the wind guide state of the selection wind from the auxiliary fan switched by the switching mechanism.

  FIG. 1 is a left side view of a general-purpose combine to which the threshing apparatus of the present invention is applied, FIG. 2 is a side sectional view showing the threshing apparatus, and FIG. 3 is a side view of the main part showing the configuration of the sorting unit. FIG. From the figure, this general-purpose combiner is connected to a traveling machine body 2 supported by a pair of left and right crawler type traveling devices 1 and 1 that are traveling parts, and is movably connected to the front of the traveling machine body 2 so as to harvest cereal grains in the field. A cutting unit 3 for performing work is provided.

  The traveling machine body 2 is provided with a control unit 4 on which an operator gets into the steering unit 4 at a right-side position in the vicinity of the rear side of the cutting unit 3, and is cut by the cutting unit 3 obliquely to the left rear of the control unit 4. A threshing device 6 for performing the threshing operation of the cereal cereal, and a grain tank 7 for storing the grain, which is the processed product threshed by the threshing device 6, behind the control unit 4 and on the right side of the threshing device 6, A discharge part 8 for discharging sawdust and the like after threshing is provided behind the threshing device 6.

  The mowing unit 3 is provided on a feeder 9 that conveys the harvested cereal to the threshing device side, a mowing frame 11 that is connected to the front end side of the feeder 9 and extends to the front side, and a front end side of the mowing frame 11. A pair of left and right dividers 12, a pair of left and right support arms 13 extending forward from the upper side of the rear end portion serving as a base of the cutting frame 11, and extending ends of the left and right support arms 13 And a scraping reel 14 that is rotatably supported.

  A reel cylinder 16 is installed between the support arm 13 on the left and right sides (left side in the illustrated example) and the cutting frame 11 to raise and lower the scraping reel 14 relative to the main body of the cutting unit 3 by expansion and contraction. The support arm 13 on the other side is provided with a transmission case 17 that transmits power to the take-up reel 14. That is, the take-up reel 14 is moved up and down with respect to the main body side of the cutting unit 3 and is driven to rotate about its own axis by the power transmitted from the transmission case 17.

  According to the cutting unit 3 having this configuration, the cereals in the field are divided into a cutting side that is between the left and right dividers 12 and a non-cutting side that is both the left and right sides of the cutting side, and the cutting side The planted culm is cut from the root side of the culm by a reciprocating cutting blade (not shown) provided at the rear of the divider 12 while being raked by the scraping reel 14 toward the reaping part. The harvested corn straw is fed to the front end side of the feeder 9 by a conveyance auger (not shown) on the harvesting frame 11 side, and the corn straw conveyed to the feeder 9 is provided in the feeder 9. 18 is conveyed to the rear side. The harvested cereals conveyed to the rear end side of the feeder 9 are sent to the upper front end side of the threshing device 6.

  The threshing device 6 is an upper side of the threshing device 6 and performs a threshing part 21 for threshing the harvested cereal mash that is conveyed from the feeder 9, and the lower side of the threshing device 6 and the threshing unit 21 performs threshing. It is comprised from the selection part 22 which sorts the processed material into grains and dusts, such as sawdust.

  The threshing portion 21 includes a handling chamber 23 into which all of the harvested cereal meal is introduced from the rear end side of the feeder 9, and a front and rear handling cylinder rotation shaft 24 formed over the entire front and rear direction of the handling chamber 23. A cylindrical handling cylinder 26 provided so as to be rotatable around the front end and having a funnel shape on the front end side, and a circle below the handling cylinder 26 and having a recessed center in the rear view along the shape of the handling cylinder 26 And an arcuate receiving net 27.

  With this configuration, the harvested cereal mash that has been put into the handling chamber by the feeder 9 is handled and crushed (threshing processing) by the handling cylinder 26 that is rotationally driven, and the slag is disposed behind the handling chamber 23. Is discharged out of the machine. On the other hand, the processed material handled by the handling cylinder 26 includes grains such as straw and waste cake etc., and is received by the receiving net 27 and leaked downward, thereby selecting the sorting unit. 22 is introduced.

  The sorting unit 22 swings and sorts the processed material leaked from the receiving net 27, and is arranged on the lower front side of the swinging sorter 31 and sends the sorting wind toward the upper rear side. A blower fan 32 that blows air, a second sorter fan 33 that discharges dust after sorting to the outside of the machine, an auxiliary fan (blower fan) 34 disposed on the front side of the swing sorter 31, and the hot fan The first spiral 36 for collecting the grain, which is the first selected by 32 etc., and the second spiral 37 for collecting the second thing are provided.

  The rocking sorter 31 is disposed behind the Glen pan 38 with a Glen pan 38 formed with a conveying surface 38a for receiving the processed material falling from the receiving net 27 side and transferring it to the rear side. 38, a chaff sheave 39 composed of a plurality of fins 39a for sorting and dropping the processed material transferred by 38, and a long spear contained in the processed material arranged at the rear of the chaff sheave 39, and included in the processed material. A stroller 41 for dropping the short rice cakes and grains as the above-mentioned second product is provided between the pair of plate frames 43 and 43.

  The swing sorter 31 is provided below the chaff sheave 39 on the lower side of the chaff sheave 39, receiving a processed material leaking from the chaff sheave 39 and sorting and dropping it, and on the rear side of the sheave sheave 42. An arranged chaff sheave 30 and a stroller pack 35 arranged behind the chaff sheave 30 are provided. An upper gren pan 44 having a short front and rear length is provided above the gren pan 38. As a result, the swing sorting body 31 is configured to swing and sort the workpiece in three stages in the vertical direction.

  The transfer surface 38a of the grain pan 38 has a crest surface that gently inclines upward toward the rear, which is the downstream side of the transfer (transfer side, downstream side), and a flat flat surface on the transfer side. It is configured by arranging alternately and facing, forming a wave shape as a whole. When the Glen pan 38 is moved back and forth, the processed material remaining on the front or flat surface moves over the mountain surface and moves to the flat surface on the downstream side due to the reaction. That is, by moving the swing sorter 31 back and forth, the processed products are sequentially conveyed backward.

  A conveying surface 38a having the same configuration is also formed on the front side of the upper grain pan 44 and the grain sieve 42 (conveying surfaces 44a and 42a). In addition, the conveyance surface 38a formed in the upper surface side of the Glen pan 38 is not restricted to the said structure, You may comprise by the flat plate (only a flat surface is provided, without providing a mountain surface) which inclines downward toward the back.

  The auxiliary fan 34 is disposed on the front side of the swing sorter 31 and includes a front side of the swing sorter 31 that is formed in a step shape toward the lower rear side, and a Kara case 32A that houses the Kara fan 32. The sorting wind generated by the auxiliary fan 34 is sent into the swing sorting body 31 through a flow path formed between the channel plate 40 and the channel plate 40 inclined downward toward the rear. Yes.

  An upper flow path through which the sorting air is blown from the upper opening 51 provided on the front surface side of the swing sorter 31 is formed between the upper grain pan 44 and the grain pan 38, and the grain pan 44 and the grain sieve 42 A lower flow path through which the sorting air is blown from a lower opening 53 provided on the front side of the swinging sorter 31 is formed between them, and the switching configured on the front side of the swinging sorter 31 is formed. By the mechanism, the sorting air sent by the auxiliary fan 34 can be sent to the upper and lower flow paths. At this time, the upper glen pan 44 is disposed so as to overhang the upper opening 51, and the gren pan 38 is disposed over the lower opening 53 so that the processing object is It can prevent efficiently falling from the upper opening part 51 (lower opening part 53) downward.

  Specifically, the switching mechanism includes a shunting state in which the sorting air of the auxiliary fan 34 is blown to both the upper surface side (upper flow path) of the Glen pan 38 and the upper surface side (lower flow path) of the Glen sheave 42, and the auxiliary fan. A lower air blowing state in which the sorting air of 34 is blown only to the upper surface side (lower flow path) of the grain sheave 42; and an upper air blowing state in which the sorting air of the auxiliary fan 34 is blown only to the upper surface side (upper flow path) of the Glen pan 38; It is comprised so that it can switch to. The detailed configuration of the switching mechanism will be described later.

  With the above-described configuration, the processed product introduced to the sorting unit 22 side is subjected to rocking and sorting by the rocking and sorting body 31, and grains and sawdust and the like by the sorting wind generated by the tang fan 32 and the auxiliary fan 34. Sorted out. Specifically, the processed material leaked from the swinging sorter 31 is not affected by the sorting wind blown by the Kara fan 32 toward the side of the grain sheave 42 and the chaff sheave 39, and the center of the sorting unit 22 in the front-rear direction (1 No. 3 of the first spiral 36), the first thing recovered by the first spiral 36 and the second spiral 37 of the first spiral 36 after being slightly affected by the sorting wind. The wind is selected as the second item collected by the above, and the sawdust etc. are blown to the discharge unit 8 side by the above-described sorting wind.

  The first item is conveyed by the first spiral 36 and the cerealing device 46, and is stored in the Glen tank 7 as a grain. The second product is reduced again to the upper side of the swinging sorter 31 in the sorting unit 22 by the second spiral 37 and the reduction device 47, and wind selection is performed.

Next, the switching mechanism will be described with reference to FIGS.
FIG. 4A is a front perspective view of the swing sorter showing a state where the ventilation plate is installed on the upper switching plate, and FIG. 4B shows a state where the ventilation plate is installed on the lower switching plate. FIG. 5A to FIG. 5C are views showing a state in which the sorting air is guided from the auxiliary fan that is switched by the switching mechanism.

  The switching mechanism is configured on the front side of the rocking sorter 31 formed in a step shape above and below the grain pan 38. Specifically, an upper switching plate (adjusting member) 52 that switches opening and closing of the upper opening 51, a lower switching plate (adjusting member) 54 that switches opening and closing of the lower opening 53, and the sorting air from the auxiliary fan 34 Is provided with a shielding plate (adjusting member) 56 that shields the flow path leading to the lower switching plate 54 side, and each switching member is attached to and detached from the front side of the swinging sorter 31 so that the auxiliary fan 34 removes the grain pan. The sorting wind blown to the 38 side is guided, and the blowing destination of the sorting wind can be switched.

  The upper switching plate 52 is a plate-like member that is bolted in a detachable configuration to the front side of the Glen pan 38. The upper switching plate 52 is formed in a frame shape and covers the inner side of the frame with a net-like portion 52a. One of the upper ventilation plate 52A (see FIG. 4 (A)) that passes the selected air and the upper shielding plate 52B (see FIG. 4 (B)) that shields the selected air from the auxiliary fan 34 is selected. The swing sorter 31 is attached to the upper opening 51. Thereby, it is possible to switch whether or not the sorting air flows on the upper surface side of the grain pan 38. Note that the net-like portion 52a may be configured to allow the sorting air to pass therethrough.

  Further, the upper switching plate 52 is inclined from the front end side of the grain pan 38 toward the front upper side, and the upper end side thereof is bolted to the pair of left and right upper bolt fixing portions 57, 57 provided on the front side of the upper grain pan 44. In addition to being fixed, the lower end side is bent in the horizontal direction along the front end side of the Glen pan 38 and is bolted with a pair of left and right middle bolt fixing portions 58, 58 provided on the front side of the Glen pan, thereby allowing the upper opening 51 is configured to be detachable.

  The lower switching plate 54 is a plate-like member that is bolted in a detachable configuration to the front side of the grain sheave 42. The lower switching plate 54 is formed in a plate shape and covers the inner side of the frame with a net-like portion 54a from the auxiliary fan 34. One of a lower ventilation plate 54A (see FIG. 4B) that allows the selected air to pass through and a lower shielding plate 54B (see FIG. 5A) that shields the sorted air from the auxiliary fan 34 is selected. The swing sorter 31 is attached to the lower opening 53.

  Further, the lower switching plate 54 is inclined from the front end side of the grain sheave 42 toward the front upper side, and a pair of left and right lower bolt fixing portions provided on the front side of the grain sheave 42 and the middle lower side of the grain pan 38. It is configured to be detachable from the lower opening 53 by being fixed to 59, 59, 59, 59 by bolts (total of 4 positions).

  The shielding plate 56 is a plate-like member that is bolted in a detachable configuration to the front side of the Glen pan 38, and blocks the middle part of the flow path through which the sorting air from the auxiliary fan 34 flows. By being attached so as to protrude toward the front side of the Glen pan 38 (the swing sorting body 31), the sorting wind from the auxiliary fan 34 can be guided to the upper flow path. Further, by removing the shielding plate 56, the sorting air from the auxiliary fan 34 can be blown to the lower flow path.

  The shielding plate 56 is a plate-like member extending in the front-rear direction, and its rear end side is fastened together with the upper switching plate 52 to the middle bolt fixing portions 58, 58, and its left and right end sides are bent upward. The bolts are fixed to the frame side bolt fixing portions 61, 61 provided on the front end side of the plate frames 43, 43 (a total of four locations), thereby being detachable.

  The switching mechanism configured as described above is configured such that the upper ventilation plate 52A is bolted to the upper opening 51, the lower ventilation plate 54A is bolted to the lower opening 53, and the shielding plate 56 is removed to remove the shielding plate 56 from the auxiliary fan 34. Can be switched to a diversion state in which the selected air is sent to both the upper surface side of the Glen pan 38 and the upper surface side of the Glen sheave 42 (see FIG. 5A).

  According to the shunting state of the above configuration, the processed material on the chaff sheave 39 in the upper flow path of the swinging sorter 31 and the processed material on the glenshave 42 in the lower flow path are selected by the selection air from the auxiliary fan 34. Since the processed material leaked from the swing sorter 31 (Glenshive 42) side is selected by the stronger sorting wind from the Kara fan 32, it can be sorted evenly in the vertical steps, so that the sorting performance is high. improves.

  In addition, the switching mechanism is configured such that the upper shielding plate 52B is bolted to the upper opening 51, the lower ventilation plate 53A is bolted to the lower opening 53, and the shielding plate 56 is removed. Can be switched to a lower blowing state in which only the sorting air is blown to the side of the grain sieve 42 (see FIG. 5B).

  According to the lower air blowing state of this configuration, particularly in the case of a product that reduces the amount of processed material to be filtered, the sorting air is prevented from being blown onto the chaff sheave 39 of the swinging sorter 31, and the chaff sheave 39 is processed. Since the object is swayed and sorted to some extent, and the one that has fallen on the Glen Sheave 42 can be selected by the sorting air, it is possible to efficiently prevent the processed material remaining on the chaff sheave 39 from being scattered outside the machine more than necessary. . In other words, in the lower air blowing state and the diversion state, when the selected air from the auxiliary fan 32 blown to the Glen pan 38 side is cut off (weakened), the selected air is not affected by the switching mechanism. The air can be guided to the lower flow path (Glensieve 42) side, and the sorting ability can be utilized for improvement.

  Further, the switching mechanism is configured such that the upper ventilation plate 52A is bolted to the upper opening 51, the lower shielding plate 53B is bolted to the lower opening 53, and the shielding plate 56 is bolted to the auxiliary fan. It is possible to switch to the upper air blowing state in which the sorting air from 34 is blown only to the Glen pan 38 side (see FIG. 5C).

  According to the upper air blowing state of this configuration, the sorting air blown to the Glen pan 38 and the chaff sheave 39 side can be strengthened by guiding the sorting air from the auxiliary fan 34 to the upper flow path by the shielding plate 56. it can. For this reason, in particular, when selecting a variety having a large amount of filtration from the chaff sheave 39, the processed product that has undergone the threshing process can be quickly selected with the selection air from the auxiliary fan 34 at an early stage, so that the selection efficiency is improved.

  According to the configuration of the switching mechanism described above, the upper side of the oscillating sorter 31 according to the type of corn that is to be cut (threshing / sorting) by a general-purpose combiner that can perform reaping of various varieties. By switching the presence / absence and strength of the sorting air blown into the flow path and the lower flow path, the sorting ability can be changed as appropriate. Further, since the presence / absence or strength of the sorting wind is switched by attaching / detaching the upper switching plate 52, the lower switching plate 54, and the shielding plate 56, the cost can be reduced.

22 Sorting section (sorting room)
31 Oscillating sorter 32 Kara fan 34 Auxiliary fan (fan)
38 Glen pan 38a Conveying surface 39 Chaff sheave 42 Glen sheave 52 Upper switching plate (adjustment member)
54 Lower switching plate (adjustment member)
56 Shield plate (adjustment member)

Claims (3)

  The rocking sorter (31) that sorts the processed product that has been threshed by rocking sorting, and the blower fan (34) that raises the sorting wind that sorts the treated product, are provided. ) Is arranged on the front side of the gren pan (38), the chaff sheave (39) arranged behind the gren pan (38) to sort and leak the processed material, and the chaff sheave (39) below. And a structure in which a conveying surface (38a) for conveying the processed material rearward is formed on the upper surface of the grain pan (38), and the sorting air flows on the conveying surface (38a) side. In the threshing apparatus, a removable adjustment member (52, 54, 56) is provided in the middle of the flow path from the blower fan (34) to the conveying surface (38a), and the adjustment member (52, 54, 56). ) 8a) Adjust the flow rate of the sorting air flowing toward, or sorting wind structure and the threshing apparatus for switching the presence or absence of.   In the sorting chamber (22) in which the swing sorter (31) is placed, it is placed on the lower front side of the swing sorter (31) and sorted from below toward the grain sheave (42) and the chaff sheave (39). A tang fan (32) for blowing wind is provided, and the blast fan (34) is arranged in front of the glen pan (38) separately from the tang fan (32), and is located on the transport surface (38a) side. The threshing apparatus according to claim 1, wherein the threshing apparatus is an auxiliary fan that blows the sorting air.   The sorting air blown from the auxiliary fan (34) to the Glen pan (38) side is diverted to the Glen sheave (42) side by the adjusting member (52, 54, 56), thereby flowing to the Glen pan (38) side. The threshing apparatus according to claim 2, wherein the threshing apparatus is configured to adjust the air volume of the sorting air or to switch the presence or absence of the sorting air.

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