JP5443848B2 - Self-threatening threshing device - Google Patents

Description

  The present invention is a flexible guide member for preventing stabbed wrinkles that receives grains guided from the upper side to the lower side in accordance with the rotation of the handling cylinder in the longitudinal direction above the handling opening in the handling chamber and guides it to the handling cylinder side. The present invention relates to a self-removing type threshing apparatus.

  Conventionally, as disclosed in Patent Document 1, a handling cylinder 8 that rotates around an axial core in a lateral orientation is provided inside the handling chamber 9, and the side wall of the cereal supply port that feeds the handling cylinder 8 and a feed Grain that enters the lower part from the upper side with the rotation of the handling cylinder 8 above the handling opening between the side wall of the dust mouth (the grain is removed from the cereal by receiving the handling action by the tooth handling and rotated together with the handling cylinder) Self-removing type in which a flexible guide member (thin plate member 30) is provided in the longitudinal direction of the handling cylinder for receiving the grains and guiding the grain to the handling cylinder 8 side. Threshing devices are known.

In the thing of the said patent document 1, when the guide member for a stabbed wrinkle prevention is provided over the whole range of a handling cylinder, a stabbed candy will be in the cereals which pass through the handling room termination | terminus part which does not receive a handling effect by a tooth-handling. It is useful in that it can be prevented from occurring, but if all the tooth handling teeth 8a are evenly arranged at a predetermined interval in the longitudinal direction, they will not be handled by the tooth handling action and will not be shattered and discharged together with the discharge straw. Grain may be generated (unhandled).
On the other hand, if teeth are closely arranged in the entire barrel, the shape of the guide member for inserting the teeth becomes complicated, and the cereals are excessively handled by the teeth, resulting in a large amount of straw scraps. May occur.

JP 2000-270667 A

  The present invention is a self-propelled type that can prevent the occurrence of stabbed spears on the waste straw of the cereal squeezing part while preventing unhandling in the handling room and improving productivity and maintainability. An object is to provide a type of threshing device.

[Configuration of the first invention]
The first aspect of the present invention includes a handling cylinder that rotates around an axial core in a lateral orientation inside the handling chamber, and is located above the handling opening between the side wall of the grain supply port and the side wall of the dust feeding port that pivots the handling cylinder. In addition, a flexible guide member that receives the grains that enter from the upper side to the lower side in accordance with the rotation of the handling cylinder in the longitudinal direction and guides the grains to the handling cylinder side, and a threshing processed product carried around by the tooth handling A cutting edge for cutting, the guide member is cantilevered so that at least the free end portion is positioned below the axis, and the cutting edge is positioned above the shaft. The guide member is disposed above the shaft core on the side and on the shaft core side of the outer peripheral surface of the handle cylinder on the shaft core side , and the guide member is present in the longitudinal direction. Out of the range, it is arranged at least in the middle in the longitudinal direction except for the vicinity of the side wall of the dust delivery port. The handle teeth are provided in a state closer to the upper side of the handle barrel than the lower end portion of the guide member on the lower side of the handle barrel. It is provided between the teeth that are adjacent to each other only in the range where the guide member exists in the direction.

[Operation of the first invention]
According to the first aspect of the present invention, a guide member for preventing biting wrinkles is provided at least in the longitudinal intermediate portion of the handle cylinder, and the handle teeth are provided relatively coarsely in the longitudinal intermediate portion of the handle cylinder. Become. A guide member for preventing bites is not provided in the vicinity of the dust feeding side wall of the handling cylinder, and the teeth are provided relatively densely in the vicinity of the dust feeding side wall of the handling cylinder. .

  Thereby, in the middle part of the longitudinal direction of a handling cylinder, generation | occurrence | production of a stab bite is prevented by a guide member, while a grain masher receives the handling effect | action by a tooth handling and is threshed. In this case, the tooth handling is relatively coarsely provided in the middle part of the longitudinal direction of the handling cylinder, so that the cereals are not excessively handled by the tooth handling, thereby generating straw scraps. Less is.

Next, when the cedar passes through the middle part of the handle cylinder in the longitudinal direction and reaches the portion near the dust feeding side wall of the handle cylinder, it receives a lot of handling action due to the relatively dense teeth handling teeth. The grain left at the end of the koji is threshed without remaining (less leftover). In this case, since the guide member is not provided for the portion near the side wall of the dust feeding port of the handling cylinder, there is a concern about the occurrence of stabbed wrinkles. Since many handling actions are received by the teeth, even if a stabbed candy is generated, the stabbed candy is dropped from the grain candy by the above-mentioned handling action.
If the tooth handling is provided relatively densely, there is a concern that lots of cracks will be generated, but the tooth handling is provided relatively densely in the vicinity of the dust feeding side wall of the handling cylinder. Therefore, there is little time for the cereal to receive a large amount of handling action by the tooth teeth provided relatively densely, and this does not increase the generation of straw scraps.

[Effect of the first invention]
Therefore, according to 1st invention, the collection | recovery loss of the grain by non-handling and a stab bite can be reduced, suppressing generation | occurrence | production of straw scraps. In addition, since the guide member is not provided at the place where the teeth are densely provided, the guide member having a complicated shape is unnecessary, and the guide member at this place is not damaged. improves.

[Configuration of the second invention]
According to a second aspect of the present invention, in the configuration of the first aspect of the invention, in the longitudinal direction, the lower end portion of the straw cutting blade is positioned on the upper side of the lower end portion of the guide member.

[Configuration of the third invention]
According to a third invention, in the configuration of the first invention or the second invention, a supporting member that supports the lower surface of the guide member is attached along the longitudinal direction so that the guide member does not hang down.

[Operation and effect of the third invention]
According to the third invention, the guide member is corrected so as to face the handling cylinder side by the support member, so that it is possible to prevent the occurrence of a good bite even if the guide member has a short depth, and the guide member is conveyed on the lower side. Since it can also reduce interference with the cereal grains, it is possible to satisfactorily prevent the flexible guide member from being damaged.

It is a vertical left view of the threshing apparatus in a combine. It is a partial longitudinal cross-sectional side view which shows the guide member for biting prevention attached to the upper lip board of the chamber outer wall. It is a partially longitudinal rear view of the vicinity of the handle showing the attachment structure of the guide member for preventing stabbed wrinkles. It is a disassembled perspective view which shows the attachment structure which attaches the guide member for a bite prevention to an upper lip board. It is a right view of the threshing apparatus for showing the opening / closing structure of the cover body of a waste wall cutter apparatus. It is a side view which shows the principal part of the opening-closing structure of the cover body of a waste wall cutter apparatus.

  FIG. 1 shows a longitudinal side view of a threshing device mounted on a self-removing combine. This threshing device receives a harvested cereal rice cake in a lying-down posture conveyed from a left mowing unit (not shown) with a feed chain 1 and inserts its head into the handling chamber 2 in the left direction in the figure. The threshing process is performed by the handling cylinder 3 that rotates around the axial core P in a horizontal orientation that is pivotally supported horizontally in the front and rear in the handling chamber 2.

  In the handling chamber 2, the processed material separated from the cereal grains is selected by the receiving net 4 stretched along the lower part of the handling chamber 2, and the processed material that has leaked the receiving net 4 is disposed below the handling chamber 2. While being dropped and supplied to the first half of the sorting unit 5, the processed material that has not leaked through the receiving net 4 is unloaded from the dust feed port 6 at the end of the handling chamber and dropped and supplied to the front and rear intermediate parts of the sorting unit 5. The processed product dropped and supplied to the sorting unit 5 is received by a rocking sorting case 7 that is long in the front and rear directions, and the processed material is sorted by the specific gravity difference by the Glen pan 8 while being swung and conveyed toward the rear (right side in FIG. 1). At the same time, the sieving and sorting are performed by a chaff sheave 9 for rough sorting, a grain sheave 10 for fine sorting, a sorting rack 11 for loosening, a Strollac 12 and the like. In addition, the sorting wind that flows toward the rear upper side from the Kara 13 provided at the front end of the sorting unit is supplied to the processed product that has been screened and dropped, and light straw scraps and dust contained in the processed product are It is supposed to be scattered and discharged.

  The swing sorting case 7 is resin-molded, and guide rollers 14 provided on the left and right outer surfaces at the front part are engaged with guide rails 16 provided on the inner sides of the left and right side plates 15 of the threshing device from the rear. In addition to being supported, the rear lower side of the swing sorting case 7 is connected to an eccentric crank mechanism 17, and the rotational operation of the eccentric crank mechanism 17 causes the front portion of the swing sorting case 7 to move back and forth in a straight line that is inclined upward. At the same time, the rear portion of the swing sorting case 7 is rotationally displaced back and forth and up and down, and the front and rear intermediate portion of the swing sorting case 7 is configured to circulate and rotate along a flat elliptical trajectory up and down.

  The grain that has leaked from the Glen Sheave 10 is sorted and collected by the No. 1 recovery unit 18, and the second item that has leaked from the Strollac 12 is sorted and collected by the No. 2 recovery unit 19. Waste is discharged from the dust outlet 20 at the rear end of the sorting unit. Further, the first product (grain) collected by the first collection unit 18 is laterally fed to the outside by the lateral feed screw 21 and then is fed by the screw type cerealing device 22 and is not shown. The second product collected in the tank and collected in the second collection unit 19 is fed laterally by the lateral feed screw 23 and then reduced and supplied to the front part of the swing sorting case 7 by the screw type reduction device 24. A re-sorting process has been received.

  As shown in FIG. 5, the cerealing device 22 is configured such that a vertical feed screw 26 is housed in a conveying cylinder 25 connected and fixed in a standing posture on the lateral outer side on the right side of the machine body, and the lower end of the vertical feed screw 26. And the end portion of the transverse feed screw 21 are interlocked and connected via a transmission mechanism (not shown). A rotary blade 27 is provided at the upper end of the vertical feed screw 26, and the grain sent by the lateral feed screw 21 is transferred to the vertical feed screw 26 and is fed, and the fed grain is rotated. The blades 27 are discharged and stored in a grain tank (not shown).

  The reduction device 24 is configured such that a vertical feed screw 29 is housed in a conveying cylinder 28 that is connected and fixed in an upright posture, and the grains that have been cerealed at the upper end of the conveying cylinder 28 are placed in front of the sorting unit 5. A discharge case 31 having a built-in rotary blade 30 is continuously provided. The discharge case 31 is located outside the side wall 15 located on the right side of the handling chamber 3 of the threshing apparatus, and the discharge port of the discharge case 31 opens forward. The front side wall 15 corresponding to the discharge port is formed as a reduction guide plate 32 that protrudes obliquely outward and largely toward the discharge case 31, and the discharge port of the discharge case 31 is the reduction guide plate 32. Is connected to the rear opening end. As a result, the second product conveyed upward by the vertical feed screw 29 is discharged forward from the discharge case 31 by the rotary blade 30 at the upper end of the vertical feed screw 29, and along the reducing guide plate 32, the sorting unit 5. It is designed to be scattered and fed to the front part.

  A dust exhaust fan 33 composed of a cross-flow fan is placed in the rear of the handling chamber 2 and above the rear portion of the sorting unit 5 so as to be located on the lower side of the waste transporter conveyance path. Dust and straw scraps blown out from the dust mouth 6 and dust dust and straw scraps blown up rearward of the sorting unit 5 by the sorting wind are sucked into the dust exhaust fan 33 and forcibly discharged to the rear of the machine body. ing. In addition, a waste blower transport device 34 is disposed above the dust exhaust fan 33, and the waste straw transported from the handling chamber 2 is inherited from the feed chain 1 to the waste warmer transport device 34 and rearward. It is conveyed obliquely toward the tip side, and is supplied to a waste straw cutter device 35 that is connected to the upper rear end of the threshing device and is shredded.

  A lid 36 is provided on the upper portion of the waste wall cutter device 35 so as to be opened and closed. When the lid 36 is opened, the waste straw that has been nipped and transported by the waste straw transport device 34 is dropped and released at the rear end portion of the waste straw transport device 34, and the waste straw cutter 38 is opened through the opening 37 of the waste straw cutter device 35. Supplied and shredded. When the lid body 36 is closed, the waste wall falling and released from the rear end portion of the waste wall transporting device 34 falls to the upper surface of the lid body 36 and is dropped and released rearward along the slope of the lid body 36. The A retractable drain wall dropper (not shown) is provided behind the drain wall cutter device 35, and when the drain wall is discharged to the field in the state of a long straw, the lid body is set when the drain wall dropper is set to the action posture. The waste straw falling from 36 is temporarily collected on the waste straw dropper, and when the discharged waste straw reaches a predetermined weight, the waste straw dropper is tilted by its own weight, and the waste straw is discharged to the field.

  The lid body 36 is linked to a motor driving device 40 shown in FIG. 5 attached to the front portion of the right side wall 15 of the threshing device close to the operation unit. The lid 36 swings around the fulcrum Q of the rear shaft 41, and the inner wire 45 of the release wire 44 is connected to an arm 42 attached downward to the rear shaft 41 via a spring 43. The other end of the inner wire 45 is fixed to the pulley 50 of the motor driving device 40.

  The motor driving device 40 includes a motor 47 that is driven forward or reversely by an operation of a cutter switching lever 46, a pinion 48 that is driven by the motor 47, a sector gear 49 that meshes with the pinion 48, and a swing of the sector gear 49. And the pulley 50 that rotates forward or reversely by the inner wire 45, and the inner wire 45 is wound around the pulley 50. Reference numeral 51 denotes a volume sensor that detects the open / closed state of the lid 36, and detects the open / closed state of the lid 36 by detecting the rotational position of the sector gear 49 based on the rotational amount of the sensor shaft 52.

  An arm 53 is fixed to the sensor shaft 52, and a pin 54 fixed to the free end of the arm 53 is inserted into an arc-shaped long hole 72 formed in the support member 71. The arm 53 is urged clockwise in FIG. 6, and the pin 54 is always in contact with the side end surface 55 of the sector gear 49. The solid line in FIG. 6 shows a state in which the lid body 36 is closed. When the cutter switching lever 46 is operated in the direction to open the lid body 36, the sector gear 49 rotates clockwise and the inner wire 45 is wound around the pulley 50. The arm 42 rotates counterclockwise about the fulcrum Q, and the lid 36 is opened. When the volume sensor 51 detects that the lid body 36 has been opened to a predetermined angle, the motor 47 is stopped and the opening operation of the lid body 36 is stopped. When a threshing operation is performed with the lid 36 opened, the waste straw discharged from the waste straw transporting device 34 is shredded by the waste straw cutter device 35 through the opening 37.

  The detection signal of the volume sensor 51 is sent to the control unit 73, and the signal of the opening state of the lid body 36 based on the detection signal is sent to a monitor (not shown) provided in the operation unit, and the open / close state of the lid body 36 is changed. It is configured to display so as to be understood by the driver.

The upper lip plate 59 above the handling port 58 between the grain supply side wall 56 and the dust feeding side wall 57 that pivots the handling cylinder 3 is moved downward from above with the rotation of the handling cylinder 3 in its longitudinal direction. A flexible guide member 60 is provided for receiving the grain that enters and guiding it to the side of the barrel 3.
The tooth handling 39 provided on the outer periphery of the handling cylinder 3 is provided with a lower side portion (see range W2) of the handling cylinder 3 in a denser state than a portion on the upper side of the handling cylinder 3 (see range W1) ( In the longitudinal direction of the barrel 3, the arrangement pitch of the teeth 39 on the lower side portion (see range W2) of the barrel 3 is larger than the arrangement pitch of the teeth 39 on the upper side portion (see range W1) of the barrel 3. Small state). This is because of the large number of teeth 39 for all the grains that pass through here, in order to prevent leftover of the ears attached to the grains, and immediately before the grains (draining straw) leave the handling chamber 2. By applying a dense handling action, it gives continuous squeezing action and squeezing action to the cereal, prevents unhandling, and shakes off the grain attached to the waste straw after threshing, thereby improving the efficiency of grain recovery. It is for making it improve.

The guide member 60 is disposed in the middle portion in the longitudinal direction of the handling cylinder 3 in the range W1, the portion of the dust feeding side wall 57 of the handling cylinder 3 (range W2), and the cereal supply port side wall 56 of the handling cylinder 3. It is not provided in this part. A support member 61 that supports the guide member 60 is attached to the outer surface of the guide member 60 attached to the upper lip plate 59 and the lower surface below the bent portion along the longitudinal direction so that the guide member 60 does not hang down.
As shown in FIG. 4, a plurality of bolt insertion holes 62 and 63 are formed in the guide member 60 and the support member 61, and the bolts 64 fixed to the upper lip plate 59 are supported by the bolt insertion holes 62 of the guide member 60. The guide member 60 and the support member 61 are fixed with a nut 65 through the bolt insertion hole 63 of the member 61.

  The guide member 60 has a depth width that exceeds the range intersecting the tooth-handling 39 from the position where it is attached to the upper lip plate 59 in order to prevent the candy from being stabbed to the extent that the tooth-handling 39 acts. is there. A slit 66 is provided at the free end portion of the guide member 60 on the side of the handle cylinder 3 so as not to interfere with the handle teeth 39.

  1 is a straw cutting blade attached to the inner surface of the top plate 68 of the handling chamber 2, and 69 is attached to the inner surface of the top plate 68 of the handling chamber 2. It is a dust feed valve that adjusts the feed amount to the end side.

  With the above configuration, the culm harvested by a reaping part (not shown) is transported by the transport device, inherited by the feed chain 1, and sandwiched and transported by the feed chain 1 from the threshing device supply port 70 of the threshing device to the handling chamber 2. Upon entering, the barrel 3 is threshed. The threshed product that has been threshed moves in the space between the outer peripheral surface of the handling cylinder 3 and the inner peripheral surface of the handling chamber 2 as the handling cylinder 3 rotates. The threshing processed product carried by the tooth handling 39 is divided by the straw cutting blade 67, and the threshing processed product is transferred toward the terminal side of the handling chamber 2 by the dust feed valve 69. The threshing product that has passed through the dust feed valve 69 and moved to the handle 58 side moves to the handle cylinder 2 side from the inclined upper surface of the guide member 60. By providing the guide member 60, it is possible to prevent threshing cocoons (grains) in the threshing processed material from being mixed into the root part of the cereals held and conveyed by the feed chain 1 and causing stabbed candy. Is done. Since the tooth handling 39 is provided in a relatively rough state on the lower side portion (refer to the range W2) of the handling drum 3, the cereals are not excessively handled by the tooth handling 39, and thus the waste dust There is little occurrence of.

  In the vicinity of the end portion of the handle cylinder located near the dust feeding side wall 57, the handle teeth 39 are more densely implanted than the front portion, and the guide member 60 has the handle teeth 39 implanted more densely. It ends in front (good). The cereals that have been nipped and conveyed by the feed chain 1 have a handling action on the cereals so that no unhandled residue is left in the densely-treated toothings 39, and the toothed teeth 39 that are densely planted. As a result of being handled, the grains adhering to the root portion of the cereal are also separated and conveyed outside the handling chamber 2. Even if a stabbed spear is generated due to the absence of the guide member 60, the spear stab is dropped from the cereal mash while the generation of straw scraps is suppressed by the handling action of the relatively dense teeth 39.

[Another embodiment]
In the above embodiment, the guide member 60 is provided in the middle portion in the longitudinal direction of the handling cylinder 3, but the entire range excluding the lower end, that is, the guide member 60 is handled excluding the lower end. You may arrange | position in the range which extends to the front-end part of the chamber 2. FIG.
In short, the guide member 60 is disposed at least in the middle in the longitudinal direction except for the vicinity of the dust feeding port side wall 57 in the presence range of the tooth handling 39 in the longitudinal direction of the handling cylinder 3, and more than the lower end portion of the guide member 60. The handle teeth 39 may be provided in the lower handle portion 3 in a denser state than the upper handle portion of the handle 3.
As a configuration of the teeth 39 that are densely provided, in the circumferential direction of the barrel 3, the arrangement pitch of the teeth 39 of the lower side portion (see range W <b> 2) of the barrel 3 is set to the upper side portion (range W <b> 1) of the barrel 3. It may be set to be smaller than the arrangement pitch of the tooth handling teeth 39 of (see). Further, in both the longitudinal direction and the circumferential direction of the barrel 3, the arrangement pitch of the teeth 39 on the lower side portion (see the range W <b> 2) of the barrel 3 is set to the tooth handling on the upper side portion (see the range W <b> 1). It may be set smaller than the arrangement pitch of 39.

  The present invention can also be applied to a mobile harvester that does not include a stationary threshing device or a reaping device.

2 Handling chamber 3 Handling cylinder 39 Teeth 56 Grain supply side wall 57 Dust feeding side wall 58 Handling port 60 Guide member 61 Support member 66 Slit 67 Warp cutting blade P shaft core

Claims (3)

A handling cylinder that rotates around an axial core in a lateral orientation is provided inside the handling chamber, and in the longitudinal direction above the handling mouth between the side wall of the grain supply port and the side wall of the dust feeding port that pivots the handling cylinder. A flexible guide member that receives and guides the grains that enter from the upper side to the lower side in accordance with the rotation of the handling cylinder, and a straw cutting blade that divides the threshing processed product carried around by the tooth handling The guide member is cantilevered so that at least the free end portion is positioned below the shaft core, and the warp cutting blade is positioned closer to the handling port than the shaft core. Moreover, and arranged on the shaft core side from the end on the handling port side of the outer peripheral surface of the handling cylinder ,
The guide member is disposed at least in the middle in the longitudinal direction excluding the vicinity of the side wall of the dust feeding port in the range of presence of the teeth in the longitudinal direction, and the lower side of the guide member on the lower side. The teeth are provided in the handle cylinder portion in a denser state than the upper-hand side of the handle cylinder, and the brace cutting blades are adjacent to each other only in the presence range of the guide member in the longitudinal direction. A self-removing threshing device provided between the teeth.   The self-removal type threshing device according to claim 1, wherein a lower end portion of the straw cutting blade is positioned on an upper side of the lower end portion of the guide member in the longitudinal direction.   The self-removing type threshing apparatus according to claim 1 or 2, wherein a supporting member that supports a lower surface of the guide member is attached along the longitudinal direction so that the guide member does not hang down.

Images