JP2020018198A - Thresher - Google Patents

Abstract

To provide a thresher comprising a reception net for causing thresh processed products to leak, and selecting the thresh processed products, in a state of suppressing dust from being discharged with the grains even when an amount of crops to be supplied to a threshing drum is large.SOLUTION: A thresher comprises a first oscillation selection device 41 which is provided below a reception net 26 in a manner of being capable of oscillating, which has a first chaff sieve 62, and selects thresh processed products which leak from a reception net 26. The thresher further comprises a second oscillation selection device 42 which is provided between the reception net 26 and the first oscillation selection device 41 in a manner of being capable of oscillating, which has a second chaff sieve 48, and selects the thresh processed products which leak from the reception net 26 and then causes the thresh processed products to leak to the first oscillation selection device 41.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a threshing apparatus provided with a handling cylinder and a receiving net through which the threshing processed by the handling cylinder leaks.

  In the above-described threshing apparatus, generally, for example, as shown in Patent Literature 1, a rocking sorting device is provided below a receiving net, and threshing processed material leaking from the receiving net is received by the rocking sorting device and sorted. Configured to be processed. Further, as shown in Patent Literature 2, a guide plate supported by a sheave case of an oscillating sorting device is provided, and threshing products leaking from a rear end side of a receiving net are guided by a guide plate to a front end side of a sorting unit. There is one configured to be guided to.

JP 2016-195609 A JP 2014-14332 A

  In the conventional case, when a large amount of crops are supplied to the handling cylinder, a large amount of threshing products are also supplied to the rocking sorter, and the grains are likely to be mixed with dust and discharged. Even if the technique disclosed in Patent Document 2 is adopted, the threshing processed material that has leaked from the transport end side of the receiving net is guided down to the transport start end side of the sorting unit, and is subjected to the sorting process by the rocking sorting device. However, when a large amount of crop is supplied to the handling cylinder, the grains are likely to be discharged together with dust.

  The present invention provides a threshing apparatus in which grains are hardly discharged together with dust even if a large number of crops are supplied to a handling cylinder.

The threshing device according to the present invention comprises:
Handling cylinder,
A receiving net for allowing the threshing by the handling cylinder to leak,
A first rocking sorting device, which is provided to be swingable below the receiving net and has a first chaff sheave, and sorts threshing products leaking from the receiving net;
It is provided swingably in the space between the receiving net and the first rocking sorting device and has a second chaff sieve, and sorts the threshing processed product leaked from the receiving net to process the processed product. And a second swing sorting device that leaks to the first swing sorting device.

  According to this configuration, the threshing material leaking from the receiving net can be subjected to both the sorting process by the first swing sorting device and the sorting process by the second swing sorting device. Even if it is performed, the number of grains that remain mixed in the dust is smaller than in the past. That is, it is difficult for the grains to be discharged together with the dust.

  In the present invention, it is preferable that the second swing sorting device is provided below a rear portion of the receiving net in the space.

  When the thresh-processed material leaking from the rear part of the receiving net falls directly on the first rocking sorting device, only the sorting process by the transport end side portion of the first rocking sorting device is performed. According to this configuration, even if the threshing material leaks from the rear portion of the receiving net, the threshing material is first received by the second rocking sorting device and subjected to the sorting process by the second chaff sheave. Since it falls from the dynamic sorting device to the first swing sorting device and undergoes the sorting process by the first swing sorting device, it is easier to avoid that the grains are discharged together with the dust.

  In the present invention, there is provided a first guide that is provided in a downwardly inclined state below and behind the receiving net, and guides the threshing processed material leaked from the receiving net to the second swing sorting device. Is preferred.

  According to this configuration, even if the threshing product leaks or falls from the rear or rear end of the receiving net, the threshing product is guided by the first guide to the second swing sorting device and is guided to the second swing sorting device. , It is easy to avoid that the grains are discharged together with the dust.

  In the present invention, it is preferable that a second guide is provided below the second swinging sorting device in a downwardly inclined state below the second swinging sorting device.

  According to this configuration, when dust such as straw waste falls backward from the second swing sorting device, the dust is placed on the second guide and is blown off by the sorting wind flowing along the second guide to be discharged, so that the dust is removed. It is easy to avoid mixing in the grains.

  In the present invention, the handling cylinder and the receiving net are provided in an upwardly inclined state, and the second swing sorting device is provided between the rear portion of the receiving net and the first swing sorting device. It is preferable that the airbag is provided in an upwardly inclined state.

  According to this configuration, the threshing process is performed while the movement of the threshing product to the rear end side of the handling cylinder is suppressed by the upward inclination of the handling cylinder and the receiving net, and threshing is performed firmly. When the threshing is firmly performed, threshing dust contained in the threshing processed material leaking from the rear portion of the receiving net increases, but the leaked threshing processed product is located in the second portion located below the rear portion of the receiving net. It is received by the swing sorting device and is sorted by the second swing sorting device. Since the movement of the threshing product to the rear end side of the second rocking sorting device is suppressed by the rearward inclination of the second rocking sorting device, the sorting process is performed, so that the sorting process is performed firmly. That is, the sorting process is performed in a state where the thresh to be obtained and the dust are accurately separated.

  In the present invention, the first chaff sheave is provided with a front first chaff sheave and a rear first chaff sheave separated in a front-rear direction of the first swing sorting device, and the rear first chaff sheave is provided with the front chaff sheave. It is preferable to be provided below and below one chaff sheave.

  According to this configuration, when the processed material falls from the front first chaff sheave toward the rear first chaff sheave, it receives a sorting wind passing between the front first chaff sheave and the rear first chaff sheave, so that the first chaff sheave The processing of sorting the processed objects is performed more accurately.

  In the present invention, the front first chief sheave and the rear first chief sheave are provided in a rearwardly inclined state, and the inclination angle of the rear first chief sheave is steeper than the inclination angle of the front first chief sheave. It is preferred that

  According to this configuration, since the distance between the rear portion of the front first chiff sheave and the front portion of the rear first chaff sheave is increased, when the processed material falls from the front first chaff sheave to the rear first chaff sheave, The sorting process is more easily performed and the sorting process is performed more accurately.

  In the present invention, the transport end portion of the second swing sorting device is located on the front side of the rear portion of the receiving net, and the transport end portion of the rear first chaff sheave is the transport end portion of the second swing sorting device. It is preferable to be located behind the terminal end.

  According to this configuration, even if the processed material leaked from the rear part of the receiving net is not received by the second swing sorting device, it is received by the rear first chaff sheave, so that the sorting process is performed with high accuracy.

  In the present invention, an input system for inputting power of a drive source to the first swing sorting device, and a branch input system for splitting the power of the drive source from the input system and inputting the power to the second swing sorter Is preferably provided.

  According to this configuration, it is simpler than providing an input system for inputting the power of the drive source to the first swing sorting device and an input system for inputting the power of the drive source to the second swing sorter separately. The power can be transmitted to the first swing sorting device and the second swing sorting device by the power transmission structure of the structure.

  In the present invention, there is provided an opening adjuster provided at a front portion of the second swing sorting device to change a processing material leakage opening of the second chaff sheave. It is preferable that an inspection port is formed in a portion corresponding to the adjustment section.

  According to this configuration, the processing material leakage opening of the second chaff sheave can be changed, so that it is possible to adjust the second chaff sheave so that grains easily leak or the dust is hardly leaked.

  In the present invention, it is preferable that a ventilation port is opened in a front portion of a sorting frame in the second swing sorting device.

  According to this configuration, since the sorting wind easily passes through the second swing sorting device, the sorting of the processed material by the second swing sorting device can be performed accurately and quickly.

It is a left view which shows the whole combine. It is a vertical side view which shows a threshing apparatus. It is a left view which shows a sorting drive mechanism. It is a rear view which shows a sorting drive mechanism. It is a left view which shows the left link mechanism. It is a right side view showing the right link mechanism. It is a perspective view showing the front part of the 2nd swing sorter. It is a longitudinal section showing the 2nd swing sorter. It is a side view which shows an opening degree adjustment part. It is a top view which shows a Karamin drive pulley.

Hereinafter, an embodiment which is an example of the present invention will be described with reference to the drawings.
In the following description, the direction of arrow F shown in FIG. 1 is “forward”, the direction of arrow B is “rearward”, the direction of arrow U is “upward”, and the direction of arrow D is shown in FIG. The direction is referred to as “downside of the aircraft”, the direction on the front side of the paper is “left of the aircraft”, and the direction on the back side of the paper is “rightward of the aircraft”.

[Overall structure of combine]
As shown in FIG. 1, the combine includes a body frame 1, a pair of left and right front wheels 2 drivably mounted on a front portion of the body frame 1, and a pair of left and right wheels steerably mounted on a rear portion of the body frame 1. Is provided with an airframe having rear wheels 3. The body frame 1 is provided with a pair of left and right main frames 1a extending in the front-rear direction of the body. A ride-type operation unit 4 is formed at the front of the fuselage. The driving section 4 is provided with a cabin 5 that covers the boarding space. A harvesting and conveying device 6 is connected to a front portion of the body frame 1. The harvesting / transporting device 6 is provided in front of the machine body, and has a harvesting unit 7 that cuts and harvests a grain culm of a crop such as paddy rice, wheat, or rapeseed positioned in front of the machine body during work traveling, and a rear portion of the harvesting unit 7. The feeder 8 has a front portion connected thereto and transports the harvested grain stems harvested by the harvesting section 7. The feeder 8 is connected to the body frame 1 in a state in which the feeder 8 can swing up and down with the connecting shaft center P1 facing the body left and right as a swing fulcrum. The harvester 7 is moved up and down over a lower working state and a non-working upper state by the feeder 8 being swung up and down by the expansion and contraction operation of a hydraulic lifting cylinder 9 connected to the feeder 8. At the rear of the machine, a threshing device 10 is provided which receives the harvested culm transported by the feeder 8 as an object to be threshed and performs threshing processing, and sorts the processed material after the threshing processing. The threshing device 10 is supported by the body frame 1 in a state where the lower portion 10t of the threshing device 10 is located below the main frame 1a. At the rear of the threshing device 10, a waste straw shredding device 11 for shredding the threshing waste straw is connected. Above the front of the threshing device 10, a threshing tank 12 for collecting and storing single-grained kernels as threshing material transported from the threshing device 10 by a supply transport device (not shown) is provided. . A threshing material discharging device 13 for discharging the stored grains is connected to a lower left side portion of the threshing tank 12. Above the rear part of the threshing device 10, a driving part 15 having an engine 14 is formed.

[About the structure of the harvesting unit]
In the harvesting unit 7, as shown in FIG. 1, at the left and right ends at the front end of the harvesting unit 7, a divider 16 that separates uncut culms into grain culms to be harvested and grain culms not to be harvested is provided. Is provided. Above the front part of the harvesting unit 7, there is provided a rotating reel 17 that scrapes the ears of the grain culm to be harvested rearward. Behind the divider 16, there is provided a clipper-type cutting device 18 for cutting the root of the stalks that have been scraped. An auger 19 is provided behind the cutting device 18 to collect the harvested grain culm at the front side of the feeder 8 and to supply the feeder 8 with the whole of the gathered grain culm from the root to the tip.

[Configuration of threshing equipment]
In the description of the threshing apparatus, the processing start end side of the threshing apparatus [grain culm input side (left side of the paper in FIG. 2)] is "front", and the processing end side of the threshing apparatus [grain culm discharge side (right side of the paper in FIG. 2)]. Is “after”.

  As shown in FIG. 2, the threshing apparatus 10 includes a threshing unit 10 </ b> A that performs threshing processing on the cut thresh as a crop to be fed by the feeder 8 as a threshing product, and a threshing process after the threshing process. And a collecting unit 10C that collects the processed material to be collected after the sorting process. In the threshing device 10, the threshing process direction in the threshing unit 10A and the sorting process direction in the sorting unit 10B coincide with the front-rear direction of the vehicle body, and the upstream side of the threshing process and the upstream side of the sorting process are positioned on the front side of the vehicle body. Is set to

  As shown in FIG. 2, the threshing unit 10 </ b> A includes a handling room 21 formed above the threshing device 10. In the handling room 21, the handling cylinder 22 is supported so as to be rotationally driven with the handling cylinder support shaft 23 in a posture along the front-rear direction of the handling chamber 21 as the rotation center P2. In the lower front part of the handling room 21, a supply port 24 is formed, which enables the threshing processed by the feeder 8 to be fed into the handling room 21. In the lower rear part of the handling chamber 21, a dust outlet 25 is formed, which enables the processing target to be discharged after threshing to be discharged from the handling chamber 21. A receiving net 26 is provided in a region around the handling cylinder 22 below the handling cylinder 22. The handling cylinder 22 and the receiving net 26 are provided in an upwardly inclined state.

  The handling room 21 is defined by a front support wall 27 and a rear support wall 28 that support the handling cylinder 22, a top plate 29 provided above the handling cylinder 22, a receiving net 26, and the like. A plurality of dust feed valves 30 arranged in the front-back direction of the handling room 21 are provided inside the top plate 29. As shown in FIG. 2, the handling cylinder 22 includes a scraping portion 31 provided at a front portion of the handling cylinder 22 and a handling process provided at a portion of the handling cylinder 22 behind the scraping portion 31. And a section 32.

  In the threshing unit 10 </ b> A, the entire area from the root to the tip of the cut cereal culm that has been thrown into the handling room 21 from the supply port 24 by the feeder 8 is scraped into the inside of the handling room 21 by the scraping unit 31 as a threshing product. Threshing is performed by the handling processor 32 and the receiving network 26 in rare cases. The threshing product to be threshed is subjected to a threshing process while being transferred toward the rear of the handling chamber 21 in response to a rotation operation by the handling unit 32 and a feed guide by the dust valve 30. The excessively fast movement of the threshing product to the rear end side of the handling chamber is prevented by the rearward upward inclination of the handling cylinder 22 and the receiving net 26. The grains obtained by the threshing process leak from the receiving net 26 to the sorting unit 10B. Threshing waste culms and broken straw generated by the threshing process are supplied to the waste straw shredding device 11 from the dust outlet 25.

[About the configuration of the handling cylinder]
As shown in FIG. 2, the handle cylinder 22 includes a handle cylinder support shaft 23 supported by the handle chamber 21 so as to be driven to rotate about the handle cylinder axis in the processing direction of the threshing unit 10 </ b> A with the rotation center P <b> 2. A scraping portion 31 provided at a front portion of the handling cylinder 22 and rotationally driven by the handling cylinder support shaft 23; and a scraping portion support shaft provided at a portion of the handling cylinder 22 behind the scraping portion 31. And a handling processing unit 32 driven to rotate by the control unit 23.

  As illustrated in FIG. 2, the handling processing unit 32 includes a handling drum main body 22 </ b> A supported by the handling drum support shaft 23 and driven to rotate by the handle drum support shaft 23. A plurality of teeth 33 are arranged on the outer peripheral surface of the handling cylinder main body 22A as the outer peripheral surface of the handling cylinder 22 at intervals in the direction along the handling cylinder axis, and are spaced in the circumferential direction of the handling cylinder 22. It is provided in a state of being lined up. Each of the teeth 33 protrudes from the outer peripheral surface of the handling cylinder main body 22A outward in the handling cylinder radial direction.

  The handling cylinder main body 22A has six rod-shaped teeth supported by the handling cylinder support shaft 23 in a state along the handling cylinder axis and at intervals in the circumferential direction of the handling cylinder support shaft 23. A support member 34 is provided. Each tooth handling support member 34 is non-rotatably supported by the handling trunk support shaft 23 via a front support member 35, three intermediate support members 36, and a rear support member 37. Each of the tooth handling support members 34 supports a plurality of rod-shaped teeth 33 at intervals in a direction along the axis of the handling cylinder. The teeth 33 of each tooth supporting member 34 protrude from the tooth supporting member 34 toward the radial outside of the handling cylinder 22. Each of the six tooth supporting members 34 is a front divided tooth supporting member 34A located on the front side of the central intermediate supporting member 36 of the three intermediate supporting members 36, and the rear side of the central intermediate supporting member 36. And a rear divided tooth handling support member 34B located on the side. In the circumferential direction of the handling unit, the arrangement pitch of the six front divided tooth supporting members 34A is the same, and the arrangement pitch of the six rear divided tooth supporting members 34B is the same. The arrangement of the member 34A is different from the arrangement of the rear divided tooth support member 34B.

  In the present embodiment, the tooth handling support member 34 is made of a round pipe steel material. Various rod-shaped members such as a round steel material, a square bar steel material, and a square pipe steel material can be used for the tooth handling support member 34 in addition to the round pipe steel material. In addition, an angle material or a channel material can be used for the tooth handling support member 34. In this embodiment, each tooth 33 is made of a round steel material. Various bar-shaped members such as a square steel bar, a round pipe, and each pipe may be used for the tooth handling 33 in addition to the round steel. In the present embodiment, as the intermediate support member 36, a plate-like member having a shape in which the space between the handling barrel support shaft 23 and the tooth handling support member 34 is closed over the entire area is employed. As the intermediate support member 36, a plate-like member having a plurality of through holes arranged in the circumferential direction of the intermediate support member 36 between the handle support shaft 23 and the tooth support member 34 can be employed.

  The handling cylinder 22 is formed in a cage shape in which an internal space that communicates with the handling chamber 21 through between the tooth handling support members 34 is formed in a cage shape, and extends outward from the outer peripheral surface of the handling cylinder 22 in the handling cylinder radial direction. A plurality of handling teeth 33 protruding toward the processing cylinder 22 are arranged so as to be aligned at intervals in the circumferential direction and the processing direction of the handling cylinder 22, and are configured as a so-called bar-shaped handling cylinder.

  Accordingly, the handling cylinder 22 rotates around the handling cylinder support shaft 23 in the processing direction as the rotation center P2, thereby introducing the threshing product from the scraping unit 31 between the handling processor 32 and the receiving net 26. . The handling cylinder 22 performs threshing by hitting the toothing support member 34 and the toothing 33 or combing the toothing 33 on the threshing product located in the handling space between the receiving net 26 and the threshing process. While allowing the processed material obtained in the above to enter the internal space and agitating the processed material in the handled processing space and the processed material in the internal space, the processed material may be hit by the tooth supporting member 34 and the tooth handling 33 or the like. A threshing process is performed by combing the teeth 33.

[About the configuration of the scraping unit]
As shown in FIG. 2, the scraping portion 31 has a base portion 38 having a smaller diameter toward the front end side of the handling cylinder 22, and a state in which the base portion 38 rises outward from the outer peripheral portion of the base portion 38. And a spiral blade 39 provided on the outer peripheral portion of the base portion 38. Two spiral blades 39 are provided.

  In the scraping portion 31, the base portion 38 is driven by the handle support shaft 23 via the front support member 35, and the two spiral blades 39 are rotationally driven about the handle cylinder axis as the rotation center. The harvested cereal stems fed into the handling chamber 21 from the supply port 24 by the feeder 8 are scraped toward the rear of the handling cylinder 22 along the guide bottom plate 40 (see FIG. 2) by the rotating spiral blades 39.

[About the structure of the sorting unit]
As shown in FIG. 2, the sorting unit 10 </ b> B includes a first swing sorting device 41 that is swingably provided below the receiving net 26, and a portion between the first swing sorting device 41 and the receiving net 26. A second swing sorting device 42 provided swingably in the space, a first guide 43 provided below the receiving net 26 and a second guide provided below the second swing sorting device 42. A guide 44 and a Karamin 45 provided below the front of the first swing sorting device 41 and supplying a sorting wind toward the rear of the sorting unit 10B are provided.

  The first swing sorting device 41 is provided below a front portion of the receiving net 26 and below a rear portion of the receiving net 26. The first swing sorting device 41 performs a sorting process while transporting the threshing product to be sorted backward. As shown in FIG. 2, the second swing sorting device 42 has a slope that rises backward below a rear portion of the receiving net 26 in the space between the first swing sorting device 41 and the receiving net 26. It is provided in a state. The second rocking sorting device 42 performs the sorting process while transporting the threshing processed material to be sorted rearward, and preventing the rearward movement of the selected material from becoming too fast by the upward slope. I do. The transport end of the second swing sorting device 42 is located forward of the rear portion of the receiving net 26.

  In the present embodiment, the second swing sorting device 42 is provided below the rear portion of the receiving net 26 in an upwardly inclined state, but is not limited to this. The second swing sorter 42 may be provided below a front portion of the receiving net 26 and below a rear portion of the receiving net 26. The second swing sorting device 42 may be provided so as to be horizontal in the front-rear direction. In the present embodiment, the configuration is adopted in which the transport end of the second swing sorting device 42 is located on the front side of the rear part of the receiving net 26, but the transport end of the second swing sorting device 42 is A configuration located at a position corresponding to the rear part of the 26 may be adopted.

  The first guide 43 is provided in a downwardly inclined state, and guides the thresh-processed material that has leaked from the rear portion of the receiving net 26 down to the second swing sorting device 42. The second guide 44 is provided so as to be inclined forward and downward, and guides the threshing product that has fallen backward from the second swing sorting device 42 to the first swing sorting device 41. In addition, the sorting wind from the Karamin 45 is guided by the second guide 44 so as to go to the rear and upper part of the sorting unit 10B.

  In the sorting unit 10B, the threshing processed material that has leaked from the receiving net 26 is received as a sorted product by the first swing sorting device 41 and the second swing sorting device 42, and is sieved and sorted by the first swing sorting device 41. By the sieving and sorting by the second rocking sorting device 42 and the wind sorting by the sorting wind from Karino 45, the clean grain as the first treated material, the untreated grain as the second treated material, It is sorted into dust. The clean grains and the unprocessed grains are dropped to the collecting section 10C, and the dust is discharged to the outside of the threshing apparatus 10 from the discharge port 46 together with the sorting wind.

[About the second swing sorting device]
As shown in FIGS. 2 and 7, the second swing sorting device 42 is provided with a second sorting frame 47 as a sorting frame of the second swing sorting device 42. The second chaff sheave 48 is supported inside the second sorting frame 47.

  As shown in FIGS. 7 and 8, a ventilation port 49 is formed in a front portion of the second sorting frame 47 to allow the sorting wind from the Karamin 45 to flow into the inside from the front side of the second sorting frame 47. As shown in FIGS. 4 and 8, at a rear portion of the second sorting frame 47, an exhaust port 50 for discharging the sorting wind from the inside of the second sorting frame 47 to the rear side is formed. The ventilation port 49 and the exhaust port 50 are formed side by side in the width direction of the second selection frame 47.

  As shown in FIGS. 2, 5, and 6, a support shaft 51 extending in the width direction of the second sorting frame 47 is provided at a front portion of the second sorting frame 47. Support members 51 a that support both ends of the support shaft 51 so as to be able to roll and slide are provided on the left and right threshing machine walls of the threshing device 10. At the rear of the second sorting frame 47, a second drive shaft 52 as a drive shaft of the second swing sorting device 42 is mounted.

  In the second swing sorting device 42, when power is transmitted to the second drive shaft 52, the rear portion of the second swing sorting device 42 swings up and down with the support shaft 51 as a swing fulcrum. The thresh-processed material leaked from the rear part of the receiving net 26 and the thresh-processed material flowing down from the first guide 43 are received by the second chaff sheave 48 as sorting objects, and are rearward of the second swing sorting device 42. While being conveyed toward, it is separated into grains and dust by sieving and sorting by the second chaff sieve 48 and wind sorting by the sorting wind from Karino 45. The sorting process is performed while preventing the rearward moving speed of the processing object to be sorted by the second chaff sheave 48 from becoming too fast by the rearward upward inclination of the second swing sorting device 42. The sorted kernels leak from the second chaff sheave 48 and are supplied to the first swing sorting device 41. The sorted dust is discharged to the rear of the second swing sorting device 42 together with the sorting wind.

  As shown in FIGS. 7 and 8, the second chaff sheave 48 is configured by a plurality of chaff flip plates 48 a that are arranged at intervals in the front-rear direction of the second selection frame 47. The gap between the chaflip plates 48a becomes a processing object leakage opening.

  As shown in FIGS. 8 and 9, the upper part of each chaflip plate 48a is supported by a support portion 47a of the second sorting frame 47 via a fulcrum shaft 48b. Each chaflip plate 48a is supported by the second sorting frame 47 in a state where it can swing back and forth with the fulcrum shaft 48b as a swing fulcrum. The lower part of each chaflip plate 48a is connected to the link 53. The chaflip plate 48a and the interlocking link 53 are connected to each other via a connecting pin 48c so as to be relatively rotatable. The plurality of chaflip plates 48 a are interlockingly connected to the second sorting frame 47 by the interlocking link 53 while swinging in the same swinging direction.

  As shown in FIG. 7, an opening adjustment unit 54 is provided at a position on the left side outside of the front part of the second swing sorting device 42. The opening degree adjusting section 54 can change the processing object leakage opening degree of the second chaff sheave 48. In the threshing machine wall, an inspection port 55 (see FIG. 9) formed in a portion of the threshing machine wall corresponding to the opening adjustment section 54, and a lid (not shown) for opening and closing the inspection port 55 are provided. Provided.

  Specifically, as shown in FIG. 9, one end of the opening degree adjustment unit 54 is supported via a support shaft 57 by a support member 56 provided outside the second selection frame 47. The opening adjusting section 54 is supported in a state where the pivoting operation can be performed with respect to the second sorting frame 47 using the support shaft 57 as a swing fulcrum. The opening adjuster 54 and the interlocking link 53 are interlockingly connected by an operation pin 58. The operation pin 58 passes through a long hole-shaped through hole 59 formed in the support member 56 and the second sorting frame 47. The opening adjustment section 54 has one pin hole 54b through which a lock pin 54a for positioning the opening adjustment section 54 at the operation position can be attached and detached. The support member 56 is formed with a plurality of pin holes 56a to which the lock pin 54a can be attached and detached.

  In the second rocking sorter 42, by inserting a hand from the left lateral outside of the threshing device 10 into the inside through the inspection port 55 and rocking the opening degree adjuster 54, the processed material leaks from the second chaff sheave 48. The opening can be changed.

  That is, when the opening adjusting section 54 is rocked, the operation pin 58 moves in the front-rear direction inside the through hole 59 with the support shaft 57 as the rocking fulcrum, and the interlocking link 53 moves in the front-rear direction by the operation pin 58. When operated, each chaflip plate 48a swings, and the processing object leakage opening becomes wider or narrower. If the treated material leak opening is widened, the kernels will leak quickly. When the processing object leak opening is narrow, dust hardly leaks. By attaching the lock pin 54a to the pin hole 54b of the opening adjustment section 54 and the pin hole 56a of the support member 56 corresponding to the pin hole 54b, the opening adjustment section 54 is positioned at the operation position by the lock pin 54a. , The processed material leakage opening of the second chaff sheave 48 is maintained in the changed size.

  In the present embodiment, the opening adjustment unit 54 is provided at the left lateral outside position in the front portion of the second swing sorting device 42, but at the right lateral outside position in the front portion of the second swing sorting device 42. It may be provided and implemented. In the present embodiment, the opening adjustment section 54 is configured as a swing type, but may be configured as a slide type or a rotary type.

[About the first swing sorting device]
As shown in FIG. 2, the first swing sorting device 41 includes a first sorting frame 60 as a sorting frame of the first swing sorting device 41. A Glen pan 61, a first chaff sheave 62, and a Glen sheave 63 are supported inside the first sorting frame 60.

  As shown in FIG. 3, a support shaft 64 extending in the width direction of the first sorting frame 60 is provided at a front portion of the first sorting frame 60. A support member 65 that supports both ends of the support shaft 64 so as to be able to roll and slide is provided on the left and right threshing machine walls of the threshing device 10. At the rear of the first sorting frame 60, a first drive shaft 66 as a drive shaft of the first swing sorting device 41 is mounted. The first drive shaft 66 is constituted by a cylindrical shaft.

  In the first swing sorting device 41, the power is transmitted to the first drive shaft 66 so that the rear portion of the first swing sorting device 41 swings up and down with the support shaft 64 as the swing fulcrum. The thresh-processed material that has been operated and leaked from the receiving net 26 and the sorted material that has leaked from the second chaff sheave 48 are received as sorting objects by the Glen pan 61, the first chaff sheave 62, and the Glen sheave 63, and the first shaking is performed. While being conveyed toward the rear of the moving separation device 41, the first separation is performed by sieving and sorting by the Glen pan 61, sieving and sorting by the first chaff sieve 62, sieving and sorting by the Glen sieve 63, and wind sorting by the sorting wind from Karamin 45. The particles are sorted into clean particles as the processed material, unprocessed particles as the second processed material, and dust. The clean grains and the unprocessed grains are supplied to the recovery unit 10C. The dust is discharged to the outside of the threshing apparatus 10 from the discharge port 46 together with the sorting wind.

  Specifically, the Glen pan 61 is provided at the front of the first sorting frame 60. The first chaff sheave 62 is provided between a rear lower part of the grain pan 61 and a rear part of the first sorting frame 60. The first chaff sheave 62 is provided with a front first chaff sheave 62F and a rear first chaff sheave 62R separated in the front-rear direction of the first swing sorting device 41. The rear first chiff sheave 62R is provided below and below the front first chaff sheave 62F. The transfer end of the rear first chaff sheave 62R is located behind the transfer end of the second swing sorting device 42. The front-side first chiff sheave 62F and the rear-side first chaff sheave 62R are provided in a rearwardly inclined state. The inclination angle of the rear first chief sheave 62R is set to be steeper than the inclination angle of the front first chief sheave 62F. The Glen sheave 63 is provided below the front first chaff sheave 62F.

  The thresh-processed material that has leaked from the front of the receiving net 26 is received by the grain pan 61 as an object to be sorted, and is conveyed rearward while being sorted by sieving. The processed material after the sorting process by the Glenpan 61, the threshing processed material leaked from the intermediate portion of the receiving net 26, and the sorted processed material leaked from the front portion of the second chaff sheave 48 are the front-side second sorting objects. While being received and conveyed rearward by the one chaff sieve 62F, the separation processing is performed by sieving and sorting by the front first chief sieve 62F and wind sorting by the sorting wind from Karamin 45. The sorting process is performed while preventing the rearward moving speed of the processing object sorted by the front first chiff sheave 62F from becoming too fast by the rearward upward inclination of the front first chaff sheave 62F.

  A sorted material discharged rearward from the front first chief sheave 62F, a sorted material leaked from the rear portion of the second chief sheave 48, and a sorted material dropped from the second guide member 44 are rear first chief sieves 62R as sorting objects. While being conveyed rearward, the sieving process is performed by sieving and sorting by the rear first chaff sieve 62R and wind sorting by the sorting wind from Karamino 45. The sorting process is performed while preventing the rearward moving speed of the processing object to be sorted by the rear first chaff sheave 62R from becoming too fast by the rearward upward inclination of the rear first chaff sheave 62R. Since the rear rising inclination angle of the rear first chief sheave 62R is steeper than the rear rising inclination angle of the front first chief sheave 62F, the rear part of the front first chief sheave 62F and the rear first chief sheave 62R The distance between the front portion and the front portion is widened, so that the sorting wind easily passes between the front first chaff sheave 62F and the rear first chaff sheave 62R. When the sorting object flows down from the front first chaff sheave 62F to the rear first chaff sheave 62R, it flows down while receiving the sorting wind firmly. The sorting material leaked from the front first chaff sieve 62F is received by the grain sieve 63 as a sorting object and is conveyed to the rear, while being sorted by the sieve sorting by the grain sieve 63 and the wind sorting by the sorting wind from Karamin 45. .

  As shown in FIG. 2, in the Karamin 45, an upper discharge port 45a for supplying the sorting wind toward below the Glen pan 61, a lower discharge port 45b for supplying the sorting wind to the first chaff sheave 62 and the like, Is provided. A first air guide 67, a second air guide 68, and a third air guide 69 are provided behind the lower discharge port 45b. The sorting wind supplied from the lower discharge port 45b is guided by the first wind guide 67 so as to flow toward the front portion of the front first chaff sheave 62F. The sorting wind supplied from the lower discharge port 45b is guided by the first wind guide 67 and the second wind guide 68 so as to flow between the front first chaff sheave 62F and the Glen sheave 63. The sorting wind supplied from the lower discharge port 45b is guided by the second wind guide 68 and the third wind guide 69 so as to flow downward of the grain sheave 63. The sorting wind supplied from the lower discharge port 45b is guided by the third wind guide 69 so as to flow upward of the first screw 73 of the collection unit 10C.

  As shown in FIG. 10, the Karino drive pulley 70 for driving the Karino 45 is provided with a fixed split pulley 70a, a movable split pulley 70b, and a rotating cam 71 that slides the movable split pulley 70b. An endless V-belt 72 for input is wound around the Karino drive pulley 70. The V-shaped angle K of the endless V-belt 72 is set to about 40 degrees. In the Karino drive pulley 70, the rotating cam 71 is rotated by the speed change lever 71a, so that the movable split pulley 70b is slid toward or away from the fixed split pulley 70a, so that the endless end of the Karino drive pulley 70 is provided. As the winding diameter of the V-belt 72 changes, the rotation speed of the Karino drive pulley 70 driven by the endless V-belt 72 changes, and the drive speed of the Karino 45 changes.

[About the collection section]
As shown in FIG. 2, the recovery unit 10 </ b> C receives the fresh grain as the first processed material leaked from the Glen Sheave 63 below the upstream side of the first swinging sorting device 41 in the sorting process direction, and The first screw 73 that is carried out of the threshing device 10 is provided in the left-right direction of the threshing device 10. The fresh grains collected by the first screw 73 are supplied to the threshing tank 12 by a grain-lifting device (not shown) connected to the first screw 73. A second screw 74 for receiving the second processed material such as unprocessed grains flowing down from the rear first chaff sheave 72R below the lower side of the sorting process direction of the first rocking sorting device 41 and carrying out the outside of the threshing device 10. Is provided. The untreated particles collected by the second screw 74 are reduced to the sorting unit 10B by a reducing device (not shown) connected to the second screw 74.

[About the sorting drive mechanism]
As shown in FIGS. 2 and 3, the sorting drive mechanism S includes a first drive shaft 66 as a drive shaft of the first swing sorting device 41 mounted on the rear portion of the first swing sorting device 41, A second drive shaft 52 as a drive shaft of the second swing sorting device 42 mounted at the rear of the two swing sorting device 42 and a position higher than the first swing sorting device 41 are provided. Is input, a first interlocking mechanism X that interlocks and connects the input shaft 75 to the first drive shaft 66, and a second interlocking mechanism Y that interlocks and connects the input shaft 75 to the second drive shaft 52. Provided. The positional relationship between the input shaft 75 and the waste straw shredding device 11 is such that the waste straw shredder 11 is located behind the input shaft 75.

  As shown in FIGS. 3 and 4, the input shaft 75 is provided at a rear portion of the threshing device 10 so as to penetrate the threshing device 10 in the left-right direction. The left end of the input shaft 75 is connected to a transmission case 76 that rotatably supports the input shaft 75, and a mounting member 77 that attaches the transmission case 76 to the left threshing machine wall 10K of the threshing apparatus 10. Supported by the threshing machine wall 10K. The right end of the input shaft 75 is provided with a bearing case 78 for rotatably supporting the input shaft 75 and a right threshing via a mounting member 79 for attaching the bearing case 78 to the right threshing machine wall 10 </ b> K of the threshing apparatus 10. It is supported by the machine wall 10K. In the input shaft 75, the left end portion supported by the transmission case 76 and the right end portion supported by the bearing case 78 are located on the same axis, and the axis of the intermediate portion is the left end portion and the right end side. The crankshaft is displaced with respect to the axis of the part. As shown in FIG. 3, an input transmission mechanism C that inputs the power of the engine 14 to the input shaft 75 is provided across the left end portion of the input shaft 75 and the engine 14.

  As shown in FIGS. 3 and 4, the input transmission mechanism C includes a belt transmission mechanism 81 that inputs the power of the output shaft 14a of the engine 14 to the handle cylinder input shaft 80a of the handle cylinder drive mechanism 80, and a handle cylinder input shaft. A belt transmission mechanism 82 for inputting the power of 80 a to the case input shaft 76 a of the transmission case 76, and a chain transmission mechanism provided inside the transmission case 76 and for inputting the power of the case input shaft 76 a to the left end portion of the input shaft 75. 83 are provided. Since the input shaft 75 is located at a position higher than the first swing sorting device 41 and the engine 14 is located above the threshing device 10, the transmission distance of the input transmission mechanism C can be reduced.

  As shown in FIGS. 3 and 4, the first drive shaft 66 is provided below the rear part of the first sorting frame 60 so as to extend in the left-right direction of the first swing sorting device 41. The first drive shaft 66 is connected to the first sorting frame 60 via a pair of right and left connecting members 84, and swings up and down together with the rear portion of the first swing sorting device 41. It is attached to the rear.

  As shown in FIGS. 4 and 5, the first interlocking mechanism X is provided on the lateral outer side of the threshing machine wall 10 </ b> K on the left side of the threshing device 10, and links the input shaft 75 to the first drive shaft 66. 4 and 6, a link mechanism 85 provided on the outer side of the threshing machine wall 10K on the right side of the threshing apparatus 10 and interlockingly connecting the input shaft 75 to the first drive shaft 66, as shown in FIGS. Have been.

  As shown in FIGS. 4, 5, and 6, each of the left link mechanism 85 and the right link mechanism 85 includes an input link 86 having one end connected to an intermediate portion of the input shaft 75, and a first drive shaft. A sorting device side link 87 having one end connected to 66, and a connecting shaft 88 for connecting the other end of the input side link 86 and the other end of the sorting device side link 87 so as to be relatively rotatable. I have. The input shaft 75 and the input side link 86 are connected so as to be relatively rotatable. The sorting device side link 87 and the first drive shaft 66 are connected to be relatively rotatable. A boss 87a is formed at an intermediate portion between each of the sorting device side link 87 in the left link mechanism 85 and the sorting device side link 87 in the right link mechanism 85. The boss 87a is pivotally supported by a support 10d of the threshing machine wall 10K via a support shaft 89. Each of the sorting device side link 87 in the left link mechanism 85 and the sorting device side link 87 in the right link mechanism 85 swings about the threshing machine wall 10K with the support shaft 89 as a swing fulcrum. I have.

  In each of the sorting device side link 87 in the left link mechanism 85 and the sorting device side link 87 in the right link mechanism 85, the boss portion 87a as an intermediate portion is located on the front side of both end portions in the side view of the body. It is formed in a bent shape. Since the contact between the sorting device side link 87 and the waste straw shredding device 11 can be avoided by the bent shape of the sorting device side link 87, the waste straw shredding device 11 can be brought forward. A connection shaft 88 connecting the input side link 86 and the sorting device side link 87 in the left link mechanism 85, and a connection connecting the input side link 86 and the sorting device side link 87 in the right link mechanism 85. The shaft 88 is constituted by the same connecting shaft. The connection shaft 88 connects the middle part of the left link mechanism 85 and the middle part of the right link mechanism 85, and is a connection shaft connecting the left link mechanism 85 and the right link mechanism 85.

  As shown in FIGS. 3 and 4, the second drive shaft 52 is provided below the rear portion of the second sorting frame 47 so as to extend in the left-right direction of the second swing sorting device 42. The second drive shaft 52 is connected to the second sorting frame 47 via a pair of left and right connecting members 90, so that the second drive shaft 52 swings up and down together with the rear part of the second swing sorting device 42. 42 is attached to the rear part.

  As shown in FIG. 5, the second interlocking mechanism Y extends from the boss portion 87 a of the left sorting device side link 87 toward the second drive shaft 52, and the extended end side of the second drive shaft 52 As shown in FIG. 6, the interlocking arm 91 is connected to the left end portion so as to be relatively rotatable, and extends toward the second drive shaft 52 from the boss portion 87a of the right sorting device side link 87 as shown in FIG. And an interlocking arm 91 whose end is connected to the right end of the second drive shaft 52 so as to be relatively rotatable.

  The second drive shaft 52 and the boss portion 87a of the sorting device side link 87 of the left link mechanism 85 are connected via the left interlocking arm 91, and the sorting device side link of the second drive shaft 52 and the right link mechanism 85. The boss portion 87 a of the LM 87 is connected to the boss portion 87 a via an interlock arm 91 on the right side. The second drive shaft 52 is a connection shaft that connects an intermediate portion of the left link mechanism 85 and an intermediate portion of the right link mechanism 85, and connects the left link mechanism 85 and the right link mechanism 85.

In the selection drive mechanism S, an input system for the first swing selection device that inputs the power of the input shaft 75 as a drive source to the first swing selection device 41 is configured by the first interlocking mechanism X.
More specifically, the power of the engine 14 is input to the left end of the input shaft 75 by the input transmission mechanism C, and the input shaft 75 is rotationally driven. The rotational power of the input shaft 75 is changed by the crank shape of the input shaft 75 to the left link. The transmission is transmitted to the input side link 86 of the mechanism 85, and the left sorting device side link 87 is swung using the support shaft 89 as a swing fulcrum, and the swinging power of the left sorting device side link 87 is applied to the first drive shaft 66. It is transmitted to the left end part. The rotational power of the input shaft 75 is transmitted to the input side link 86 of the right link mechanism 85 by the crank shape of the input shaft 75, and the right sorting device side link 87 is swung with the support shaft 89 as a swing fulcrum, The oscillating power of the right sorting device side link 87 is transmitted to the right end portion of the first drive shaft 66. Since the intermediate portion of the left link mechanism 85 and the intermediate portion of the right link mechanism 85 are connected and connected by the connecting shaft 88 and the second drive shaft 52, the left link mechanism 85 and the right link mechanism 85 can be accurately connected. Works well in tune. As a result, the first drive shaft 66 is operated in a vertically moving state without being twisted by the left sorting device side link 87 and the right sorting device side link 87, and the first swing sorting device 41 is moved by the first drive shaft 66. Swing operation is performed.

  In the sorting drive mechanism S, the power of the input shaft 75 as a driving source is branched from the input system for the first swing sorting device and is input to the second swing sorting device 42 for the second swing sorting device 42. The input system is constituted by the second interlocking mechanism Y. That is, the power of the input shaft 75 is transmitted from the intermediate portion of the link mechanism 85 to the second swing sorting device 42.

  More specifically, the left interlocking arm 91 is swung by the left sorting device side link 87 with the support shaft 89 as a swinging fulcrum, and the swinging power of the left interlocking arm 91 is changed to the left end portion of the second drive shaft 52. Is transmitted to The right interlocking arm 91 is swung by the right sorting device side link 87 with the support shaft 89 as a swinging fulcrum, and the swinging power of the right interlocking arm 91 is transmitted to the right end portion of the second drive shaft 52. . Since the left link mechanism 85 and the right link mechanism 85 operate in synchronization with high accuracy, the left and right interlocking arms 91 and 91 operate in synchronization with high accuracy. As a result, the second drive shaft 52 is operated in a state in which the left and right interlock arms 91 and 91 move up and down without being twisted, and the second rocking sorting device 42 is rocked by the second drive shaft 52. You.

[Another embodiment]
(1) In the above embodiment, the example in which only the second chaff sheave 48 is provided in the second swing sorting device 42 has been described. However, the present invention is not limited to this, and a sorting member such as a Glen sheave or a straw rack may be additionally provided. Good.

(2) In the above-described embodiment, an example is described in which the second swing sorting device 42 is provided below the rear portion of the receiving net 26, but below the front portion of the receiving net 26 and after the receiving net 26. It may be provided over the lower part of the side part.

(3) In the above-described embodiment, the receiving net 26, the handling cylinder 22, and the second swing sorting device 42 are illustrated as being provided in a rearwardly inclined state, but may be provided in a horizontal posture.

(4) In the above-described embodiment, an example in which the first guide 43 and the second guide 44 are provided has been described. However, only one of the first guide 43 and the second guide 44 may be provided. . Further, both the first guide 43 and the second guide 44 may be omitted.

(5) In the above-described embodiment, the example in which the first chief sheave 62 is separated into the front first chief sheave 62F and the rear first chief sheave 62R has been described.

(6) In the above-described embodiment, an example in which the first swing sorting device 41 is configured to be branched from the input system for inputting the power of the input shaft (drive source) 75 and input to the second swing sorting device 42. However, an input system for inputting the power of the drive source 75 to the first swing selection device 41 and an input system for inputting the power of the drive source 75 to the second swing selection device 42 are provided separately. May be.

(7) In the above-described embodiment, an example in which the bar-shaped gripping cylinder 22 and the tooth supporting member 34 divided into the front divided tooth supporting member 34A and the rear divided tooth supporting member 34B is adopted. Although shown, it is not limited to this. For example, a bar-shaped handling cylinder in which the tooth handling support member 34 is not divided into front and rear portions, or a drum-shaped handling cylinder may be employed.

  The present invention can be applied not only to the threshing apparatus of the whole culm type, but also to the threshing apparatus of the self-destroying type.

22 Handling cylinder 26 Receiving net 41 First swing sorting device 42 Second swing sorting device 43 First guide 44 Second guide 47 Sorting frame (second sorting frame)
48 second chief sheave 49 ventilation opening 54 opening adjustment part 55 inspection port 62 first chaff sheave 62F front first chaff sheave 62R rear first chaff sheave 75 drive source (input shaft)
X input system (first interlocking mechanism)
Y branch input system (second interlocking mechanism)

Claims (11)

Handling cylinder,
A receiving net for allowing the threshing by the handling cylinder to leak,
A first rocking sorting device, which is provided to be swingable below the receiving net and has a first chaff sheave, and sorts threshing products leaking from the receiving net;
It is provided swingably in the space between the receiving net and the first rocking sorting device and has a second chaff sieve, and sorts the threshing processed product leaked from the receiving net to process the processed product. A second rocking sorter that is leaked to the first rocking sorter.   The threshing apparatus according to claim 1, wherein the second swing sorting apparatus is provided below a rear portion of the receiving net in the space.   A first guide is provided below the receiving net in a downwardly inclined state, and is provided with a first guide for guiding a threshing product leaked from the receiving net to the second swing sorting device. 3. The threshing apparatus according to 2.   The threshing apparatus according to any one of claims 1 to 3, further comprising a second guide provided in a downwardly inclined state below and behind the second swing sorting apparatus. The handling cylinder and the receiving net are provided in an upwardly inclined state,
The said 2nd rocking sorting device is provided in the back-up inclination state between the rear part of the said receiving net, and the said 1st rocking sorting device, The Claims any one of Claims 1-4. Threshing equipment. The first chaff sheave is provided with a front first chaff sheave and a rear first chaff sheave separated in a front-rear direction of the first swing sorting device,
The threshing device according to any one of claims 1 to 5, wherein the rear first chaff sheave is provided below and below the front first chaff sheave. The front first chiff sheave and the rear first chaff sheave are provided in an upwardly inclined state,
The threshing apparatus according to claim 6, wherein the inclination angle of the rear first chaff sheave is steeper than the inclination angle of the front first chaff sheave. The transport end portion of the second swing sorting device is located on the front side of the rear portion of the receiving net,
The threshing apparatus according to claim 6 or 7, wherein the transport end of the rear first chaff sheave is located behind the transport end of the second swing sorting apparatus.   An input system for inputting power of a driving source to the first swing sorting device; and a branch input system for splitting the power of the drive source from the input system and inputting the power to the second swing sorting device. The threshing apparatus according to any one of claims 1 to 8. An opening adjuster is provided on a front portion of the second swing sorting apparatus, and the opening adjuster changes a process leak opening of the second chaff sheave.
The threshing device according to any one of claims 1 to 9, wherein an inspection port is formed in a portion of the threshing machine wall corresponding to the opening degree adjustment unit.   The threshing device according to any one of claims 1 to 10, wherein a ventilation port is opened in a front portion of a sorting frame in the second swing sorting device.

Images