JP2006174733A - Threshing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a threshing device having improved reaping performance and threshing selection performance by solving the problems of a conventional type by carrying out a guiding treatment of a treated product of waste dust discharged from a terminal end part of a swinging selection shelf to a reaped ground. <P>SOLUTION: The threshing device has a waste dust-guiding plate 33 for carrying out the guiding treatment of the treated product of the waste dust such as waste straw from the unreaped ground side of one side to the reaped ground side of the other side, and attached to the terminal end part of the swinging selection shelf for carrying out sieving selection while swinging and moving the threshing treatment product in the front to rear direction by receiving the threshing treatment product. As a result, the treated product of the waste dust including a large amount of the waste straw can also be discharged from the terminal end part of the swinging selection device for the sieving selection while receiving the threshing treatment product and swinging and moving the threshing treatment product, to solve the problems of causing trouble in the following reaping operation by the large amount of the treated product of the waste dust dropped even on the unreaped ground to cover the unreaped culms. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a threshing apparatus provided with an oscillating sorting device that sorts a threshing processed product while oscillating and transporting it, and belongs to the technical field of agricultural machinery.

Conventionally, in the cross-flow fan technology, a guide plate that guides the wind exhausted from the cross-flow fan to the cut ground side is provided at the straw waste outlet on the discharge side of the cross-flow fan. The thing of the structure which prevented discharge | emission to the mowing side is known (for example, refer patent document 1).
JP-A-5-308840

  Dust processing products containing a large amount of straw debris are also discharged from the terminal part of the swing sorting device that accepts the threshing processed product and screens it while swinging from front to back. There is a problem that a large amount of dust disposal products fall to the uncut area and are sprinkled on the uncut chopsticks, thereby hindering the subsequent cutting action.

  It is an object of the present invention to solve the above-mentioned problems by guiding the waste disposal product discharged from the end portion of the swing sorting shelf to the already-cut ground side, and to improve the cutting performance and the threshing sorting performance. .

  The present invention has taken the following technical means in order to solve the above-described problems. That is, according to the present invention described in claim 1, a dust-removed treatment product such as straw waste is placed at the end portion of the swing sorting shelf that receives the threshing product and screens it while swinging from the front to the rear. A dust discharge guide plate for performing a guidance process from the uncut area on the side toward the already cut area on the other side is provided.

  The threshing processed product from the handling room is received on the swing sorting shelf and screened while being swung back and forth by the swing sorting shelf. Dust processing material containing a large amount of straw waste to be discharged is discharged backward from the end of the swing sorting shelf, but at this time, it is already cut from the uncut area under the action of the dust guide plate. Guided and dropped to the ground side. Therefore, the straw scrap does not fall to the unmilled land side and does not sprinkle on the cereal, and does not interfere with the subsequent harvesting operation. It will no longer adversely affect

  The present invention according to claim 2 is the cutting according to claim 1, wherein the cutting straw is guided and processed from the uncut area side toward the already-cut area side below one side of the waste wall cutter disposed in the rear part of the threshing device. A straw guide plate is provided, and the cutting straw guide plate is disposed so as to overlap with the dust discharge guide plate.

  Of the cutting straws that fall downward from the waste straw cutter, the cutting straw from the uncut ground side receives the guiding action of the lower cutting straw guide plate and is being drawn from the uncut ground side toward the already cut ground side. The guide is dropped.

  Even if there is a thing that dust removal processed product from the swing sorting shelf exceeds the dust guide plate and deviates to the rear, the cutting straw guide plate provided to overlap with the dust guide plate It will be affected and will be surely guided and dropped to the already cut ground side.

  In short, according to the first aspect of the present invention, the dust disposal product discharged from the end portion of the swing sorting shelf is guided and dropped to the already-cut area by receiving the action of the dust guide plate. Therefore, it is possible to prevent the straw scraps from being discharged and dropped onto the uncut mushrooms, and without hindering the subsequent harvesting and threshing action, it is possible to improve the cutting performance and the threshing selection performance.

  According to the second aspect of the present invention, the cutting straw from the waste straw cutter is guided and dropped to the already cut ground side by the action of the cutting straw guide plate while having the operational effect of the first aspect of the invention. In addition, it is possible to receive the dust discharged from the dust guide operating area from the swing sorting shelf together with the dust and reliably drop it to the already-cut area.

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, the structure of the combine shown in FIG. 1 will be described.
On the vehicle body 2 having the traveling crawler 1, a reaping portion 3 that can be raised and lowered is mounted on the front, and a threshing device (threshing machine) 4 is mounted on the rear. A driving unit 5 is installed on the lateral side of the mowing unit 3 and a Glen tank G is equipped behind it. In addition, a waste straw cutter 6 that cuts the waste straw after threshing is provided at the rear of the threshing device 4.

  Next, the configuration of the threshing device 4 will be described. A receiving net 9 is stretched along the lower half of the handling chamber 8 in which the handling cylinder 7 is pivotally mounted. Reference numeral 10 denotes a handling cylinder cover that covers the upper part of the handling chamber 8, and is configured to be swingable around an axis parallel to the handling cylinder axis direction.

  A feed chain 11 for sandwiching and transporting cereal grains and a sandwiching rail 11a provided on the upper side of the handling chamber 8 are disposed on the mouth side. The sandwiching rail 11a is mounted on the barrel cover 10 side and swings and opens together with the cover. A dust exhaust port 12 is provided at the terminal end side of the handling chamber 8 for dropping a waste treated product including a large amount of straw waste and untreated material downward. The dust supply passage 13 corresponding to the dust discharge port 12 communicates with the indoor start end side of the dust discharge treatment cylinder 14.

  A swing sorting device 16 installed so as to be swingable is provided on the lower side of the handling chamber 8, and further below that, in order from the upper side in the sorting direction, the red pepper 17, the first transfer spiral 18, and the second transfer A sorting chamber 21 is configured by providing a spiral 19 and a transverse flow fan 20 for suction and dust removal above the spiral 19. The first cerealing device 18A lifts the grains recovered by the first transfer spiral 18 and stores them in the Glen tank G. The second cerealing device 19 </ b> A is configured to return the second item collected by the second transfer spiral 19 into the second processing cylinder 15.

  The swing sorting device 16 is configured to receive the processed product after the threshing process from the handling room and sort the sieve while swinging and transferring, and from the upper side in the sorting direction, the transfer shelf 22, the chaff sheave 24, the strobe. Arranged in the order of the racks 25 and provided with a grain sheave 27 disposed below the chaff sheave 24 and leaked from the handling chamber 8 by the combined action of the sorter 17 and the crossflow fan 20 with the sorting air and the swinging. The screened material is received and swung and transported to screen and sort. The chaff sheave 24 has a plurality of strip-shaped sheave plates 24a arranged at equal intervals and pivoted at the upper portion 24b, and the lower portion swings and opens along a circular hole 24c. Thus, it is set as the structure which can adjust the opening degree of a mutual selection space | interval.

  At the end portion of the straw rack 25, there is provided a straw waste discharge flow-down plate 31 which is inclined downward and rearward from the upper end of a return pan 30 obliquely provided below the Strollac. A dust discharge guide plate 33 is provided to guide the straw waste during discharge from the swing frame side plate 32 side of one side of the falling plate 31 (the uncut ground side) toward the already cut ground side. An elastic seal plate is provided between the side plate 34 on the uncut ground side (left side) of the sorting chamber and the cutter frame side plate 36 provided substantially flush with the sorting chamber side plate 34 and the swing frame side plate 32. 35 is provided. In particular, since the gap between the swing frame side plate and the cutter frame side plate is closed by the elastic seal plate, it is possible to prevent dust from falling from the gap.

  The waste straw after threshing is transported by the waste straw transporter 29 and is cut short by the waste straw cutter 6. Further, a cutting straw guide plate 37 that is inclined toward the already-cut ground side from the cutter frame side plate 36 toward the lower-cut side is provided below the uncut-ground side (left side) of the waste straw cutter 6, and The cutting straw guide plate 37 is provided so as to overlap the dust discharge guide plate 33.

  It is a flow dividing plate 38 provided between the end of the chaff sheave 24 and the start end of the straw rack 25, and its lower end portion extends from the tip end portion of the granule 24 to a lower position to form a downward extension portion 38d. The upper end portion extends higher than the upper end edges of the chaff sheave 24 and the straw rack 25 to form an upper extension portion 38u, and the suction of the transverse flow fan 20 located above the upper portion 38u is provided. By providing the suction guide plate 39 so as to extend from the mouth toward the lower flow dividing plate 38, the sorting wind from the tang 17 blows upward along the flow dividing plate 38 toward the upper side of the sorting shelf, and the transverse flow fan 20 Then, it is guided into the fan through the suction guide plate 39. Thereby, vertical sorting becomes possible, separation of straw scraps and grains can be performed reliably, and reduction of No. 3 scattering and improvement of No. 1 sorting can be achieved. Note that the extending portion of the flow dividing plate 38 and the suction guide plate 39 may be formed of an appropriate elastic body such as rubber.

  As shown in FIGS. 6 and 7, the handle frame 40 connecting the front plate and the rear plate of the handle chamber 8 has a comb-shaped tooth 41 at a position excluding the dust discharge port 12 at the end of the handle chamber. Is provided so that all the teeth 42 except for the corresponding portion of the dust outlet 12 at the end of the barrel 7 pass between the teeth of the comb-shaped tooth 41. The collection effect is improved.

  Further, as shown in FIG. 8, the comb-shaped receiving teeth 41 are made of an elastic body such as urethane rubber having appropriate elasticity, and the inside and outside thereof are sandwiched and held in a sandwich shape by metal holding plates 43a and 43b. You can also. According to this, since the elastic comb-shaped receiving teeth 41 can be provided as close as possible to the tooth-handling, it is possible to further enhance the effect of removing the small grains, and since it is an elastic body, the tooth-handling Even if it deforms and interferes with the receiving teeth, the locked state of the handle cylinder can be avoided. In addition, by making the outer metallic holding plate 43b longer than that on the inner side, the overlapped comb-shaped receiving teeth can be easily moved to the side of the handle cylinder, and the effect of preventing the casual action is further enhanced.

  A reduction gear box 47 that is driven by an HST (hydraulic continuously variable transmission) 46 is provided below the inlet funnel at the front of the threshing device 4 so that the cutting unit 3 can be driven and the feed chain 11 can be driven by the front part. In addition, a drive motor 48 that can change the angle of the HST trunnion shaft is provided, and the cutting conveyance speed and the feed chain speed are synchronized and configured at the same speed. It is possible to eliminate the disturbance of the posture of the cereals at the takeover part from the harvesting conveyance part to the threshing feed chain, and to carry out the orderly transfer.

  As shown in FIG. 10, in this control, a speed sensor 51 for detecting the rotational speed of the cutting and conveying unit and the feed chain is provided on the input side of the control unit 50, and the HST trunnion drive motor 48 is provided on the output side. As described above, the cutting and feeding speeds are controlled to be the same speed, the feeding speed is slightly higher than the cutting speed, and conversely, the feeding speed and the feeding speed are slightly higher than the cutting speed. -It is possible to control the dothene speed slightly lower.

  The control to make the feed chain speed faster than the cutting and conveying speed can prevent the clogging of the cereal by reducing the layer of cereals at the takeover part, and the control to make the feed chain speed slower than the cutting and conveying speed at the takeover part. The layer of cereals can be increased to eliminate the cereals.

  The embodiment shown in FIG. 11 and FIG. 12 is provided with a cutting tension clutch 52 for intermittently rotating power to the driving unit to the cutting unit in the combine that drives the cutting conveying unit and the threshing feed chain with HST as described above. The mowing unit can be stopped, and pillow handling switches 54a and 54b are provided near the operation seat of the driving unit 5 and near the starting end side of the threshing feed chain 11, and the mowing tension motor 53 is turned on and off by the pillow handling switches 54a and 54b. It is the structure which enabled the cutting part to stop and operate | move via. According to this, at the time of pillow handling, cutting can be stopped easily, and pillow handling work can be performed safely.

  Further, a reduction gear box 47 driven by an HST (hydraulic continuously variable transmission) 46 is provided below the inlet funnel at the front of the threshing device 4, and the cutting unit 3 and the feed chain 11 are driven at the front. In the configuration which is made possible, a rear reduction gear box 49 capable of decelerating at the rear end of the feed chain 11 may be provided so that the feed chain can be driven from the rear. According to this, it is possible to synchronize the feed chain with the cutting, and it is possible to drive the feed chain at a constant speed by switching.

  Further, in this embodiment, the feed chain 11 can be driven from the start end side or from the end end side. In the embodiment, the feed chain 11 is provided around the support shaft 56 inclined in the front-rear direction in the vertical direction. The front and rear drive sprockets 57 and 58 are connected by a coupling 59 so that they can be freely engaged and disengaged, and the front and rear drive sprockets 57 and 58 can be opened together with the feed chain frame 60. Therefore, the feed chain can be easily opened, and maintenance of the front and rear feed chain drive units and the cutting drive unit can be easily performed.

  As shown in FIGS. 3 and 11, by providing a roller 61 for increasing the chain winding angle to the sprocket 57 near the front drive sprocket 57 of the feed chain 11, the driving force of the sprocket is increased. In addition, by allowing both the sprocket and the roller to open the feed chain, maintenance inside the feed chain can be easily performed. The roller 61 is attached to the attachment member 62 of the drive sprocket 57 attached to the feed chain frame 60 so that both the drive sprocket and the roller can be removed.

  Further, by providing one-way clutches 63, 63 at the drive sprockets 57, 58 before and after the feed chain, the feed chain speed can be synchronized with the cutting from a constant speed.

  In a configuration in which one-way clutches 63 and 63 are provided in the front and rear drive portions of the feed chain so that the constant speed and the feed chain sync are automatically switched, the constant speed is approximately 1/3 to 1/2 of the maximum speed of the feed chain sync. By setting it within a certain range, it is possible to eliminate the disturbance of the transport posture at extremely low speed, to eliminate the damage of the straw, and to ensure the safety when handling the pillow.

The effect | action is demonstrated about the cutting threshing apparatus comprised as mentioned above.
First, the grain culm is harvested by the harvesting unit 3 at the front position of the aircraft that moves forward, conveyed upward, passed to the feed chain 11, and then supplied to the threshing device 4. Then, the grain portion is fed by the feeder chain 11 while being fed and the tip portion is supplied into the handling chamber 8 and is subjected to the threshing action by the rotating handling cylinder 7. The processed threshing product thus processed is carried around by the rotating barrel 7 and further subjected to a threshing treatment action, leaks from the receiving net 9 and enters the swinging sorting device 16 in the sorting chamber 21. Reached and subjected to rocking sorting action.

  In this case, the processed product that has been threshed on the start side of the handling chamber falls on the transfer shelf 22 and is oscillated and moved backward to reach the chaff sheave 24. In addition, the waste disposal product that has reached the end of the handling chamber falls on the chaff sheave 24 below from the dust outlet 12 and is sent to the interior of the dust disposal cylinder 14 through the dust delivery path 13 for processing. And divided. Then, the dust exhausted product on the chaff sheave 24 is subjected to a wind selection action while leaking a selection interval between the plurality of sheave plates 24a constituting the chaff sheave 24.

  What leaks from the chaff sheave 24 falls on the grain sheave 27 and is subjected to wind selection while being screened. At this time, the tangs 17 are sorted while blowing the raised sorting air into the sorting chamber 21, and are sorted by the suction action by the cross flow fan 20.

  In this way, the processed material is sorted while receiving the cooperative action of the oscillating sorting action and the wind sorting action by the sorting wind, and sorted into the first (fine grain), the second, and the dust. The first product is screened and sorted by the glenive 27, then dropped and collected in the receiving port of the first transfer spiral 18, taken out of the machine, and stored in the glen tank G. The second product is cerealed from the second transfer spiral 19 by the second cerealing device 19A, and is reduced into the room of the second processing cylinder 15 and reprocessed. The dust is sucked by the suction and dust cross flow fan 20 and discharged to the outside of the machine, and the straw waste reaching the straw rack 25 is discharged from the shelf end to the outside of the machine. Straw debris discharged from the Strollac 25 to the outside of the machine is discharged and dropped toward the already cut ground while receiving the action of the dust discharge guide plate 33.

  On the other hand, the waste straw after threshing is conveyed by the waste straw conveying device 29 and cut by the waste straw cutter 6. Of the cutting straws that fall downward, those that fall from the cutting portion on the uncut ground side are guided and dropped while being moved toward the already-cut ground side under the action of the cutting straw guide number 37.

Combine side view Top view of main parts of threshing device Side view of the main part Cut side view of the main part Rear view of main part of threshing device Side view of the barrel Rear view of the main part of the room Rear view of the main part of the room The figure which shows the relationship between the cutting speed and the feed chain speed and the working speed Control block diagram Side view of the main part of the mowing threshing section Control block diagram

Explanation of symbols

4 Threshing device (threshing machine) 6 Waste straw cutter 16 Oscillating sorting device 32 Oscillating frame side plate 33 Dust removal guide plate 34 Sorting chamber side plate 35 Elastic seal plate 36 Cutter frame side plate 37 Cutting wall guide plate

Claims (2)

  At the end of the oscillating sorting shelf that accepts the threshing product and sifts and moves it from the front to the back, the dust-removed product such as straw waste is placed on the other side from the uncut area on the other side. A threshing apparatus comprising a dust guide plate for performing a guidance process toward the cutting area.   At the end of the oscillating sorting shelf that accepts the threshing product and sifts and moves it from the front to the back, the dust-removed product such as straw waste is placed on the other side from the uncut area on the other side. A dust drain guide plate for guidance processing toward the cut yard is attached, and a cutting straw is guided from one side of the uncut yard to the already cultivated side under one side of the wiping cutter arranged at the rear of the threshing device. A threshing apparatus characterized in that a cutting straw guide plate to be processed is provided, and the cutting straw guide plate is disposed so as to overlap with the dust discharge guide plate.

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