JP2006067837A - Threshing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the recovery ratio of free grain over rack existing in waste straws transported by a feed chain. <P>SOLUTION: In a threshing apparatus 9 with which a threshing cylinder 31 is pivotally mounted in a threshing chamber 33, a shaking separation rack 38 is arranged below the threshing chamber 33, a winnower 43, a first spiral 46 and a second spiral 47 are arranged from an upper side in a separation air sending direction below the shaking separation rack 38, grain straws are threshed while being transported by a feed chain 15, a cylinder 51 for dropping free grain over rack is installed behind the threshing cylinder 31 and a plurality of blades 51b for dropping free grain over rack, which are attached to the cylinder 51, are inclined by a fixed angle G in the rotation direction of the threshing cylinder 31. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a threshing device mounted on a combine or a harvester.

A handling cylinder is installed in the handling chamber, a swing sorting shelf is provided below the handling chamber, and Kara, No. 1 and No. 2 spirals are arranged below the swing sorting shelf from the upper side in the sorting air feed direction. In the threshing apparatus provided and configured, a scorpion drop body configured by providing a protrusion on the endless rotating body behind the barrel is provided, and is present in the waste that is conveyed by the feed chain by rotating the endless rotating body There is a technology of a threshing device configured to collect scorpion grains. (For example, refer to Patent Document 1).
JP-A-9-191758

  In the technique as described above, the feed chain is arranged in an oblique state (from the front lower side to the rear upper side) with respect to the endless rotating body, so that the waste is stably not brought into contact with the endless rotating body. For this reason, the malfunction that the scorpion grain which exists in the excretion cannot be recovered efficiently has occurred.

  The subject of this invention is providing the threshing apparatus which eliminates the malfunctions mentioned above and performs the collection | recovery of a scorpion grain efficiently.

The above object of the present invention is achieved by the following configuration.
That is, according to the first aspect of the present invention, the handling cylinder 31 is provided in an axial manner in the handling chamber 33, the swing sorting shelf 38 is provided below the handling chamber 33, and the swing sorting shelf 38 is disposed below the swing sorting shelf 38. In the threshing device 9 provided with the Karatsu 43, the first spiral 46, and the second spiral 47 from the upper side in the sorting wind feed direction, and threshing while conveying the cereal with the feed chain 15, the sash drop barrel 51 is placed behind the handling barrel 31. The threshing apparatus is characterized in that the plurality of sag dropping teeth 51b provided on the sag dropping cylinder 51 are provided at a predetermined angle G with respect to the rotation direction of the handling cylinder 31.

  According to the first aspect of the present invention, the cereal mash that has been conveyed by the feed chain 15 is threshed by the handling drum 31 in the handling chamber 33, and the threshed workpiece falls on the swing sorting shelf 38. The object to be processed that has not dropped onto the swing sorting shelf 38 is transported to the end of the handling chamber 33 and falls onto the swing sorting shelf 38.

  The grains selected by the swinging action of the swing sorting shelf 38 and the sorting wind from the red pepper 43 are recovered from the first spiral 46. The second item collected in the second helix 47 behind the first helix 46 is reduced and reprocessed in the handling chamber 33 or on the swing sorting shelf 38.

  The waste after threshing by the handling drum 31 is subjected to the action of the tooth dropping teeth 51b of the drum 51 while being fed backward by the feed chain 15. Since the scorpion grains are present in the waste, the scorpion grains are recovered by the action of the scorpion dropping cylinder 51. Further, since the sag drop teeth 51b are attached at a predetermined angle G with respect to the rotation direction of the handling cylinder 31, the contact area of the sag drop teeth 51b with respect to the waste is increased.

  The invention according to claim 2 is the threshing apparatus according to claim 1, characterized in that the diameter E of the drum 51 is reduced with respect to the diameter D of the handling drum 31. .

  The action of the second aspect is the same as that of the first aspect, and the diameter E of the scorpion dropping cylinder 51 is smaller than the diameter D of the handling cylinder 31, so that the distance between the feed chain 15 and the scorpion dropping cylinder 51 becomes longer. The space becomes wider. And the vibration of the waste with which the sag-dropping teeth 51b contact is increased, and the sag-dropping action is increased.

  According to a third aspect of the present invention, the rotational diameter F of the tip portions of the plurality of sag dropping teeth 51b provided on the sag dropping drum 51 is configured not to change. This is a threshing device.

  The action of the third aspect is the same as that of the first or second aspect. In addition, the rotation diameter F of the tip part of the sag drop tooth 51b when the sag drop drum 51 rotates does not change. It abuts on the waste.

  Since the present invention is configured as described above, the effect of claim 1 is that the contact area of the sag-dropping teeth 51b with respect to the waste is increased, so that the action of sag-dropping is improved and the fourth loss is reduced. As a result, the grain recovery rate is improved.

  In the second aspect of the invention, in addition to the effect of the first aspect, the distance between the feed chain 15 and the scorpion dropping cylinder 51 becomes longer and the space becomes wider. As the vibration increases, the action of dropping the scorpion increases, and the recovery rate of scorpion grains is further improved.

  In the third aspect of the invention, in addition to the effect of the first or second aspect, the scorpion dropping teeth 51b efficiently come into contact with the waste, so that there is less recovery of scorpion grains.

1 and 2 show a combine that is an agricultural machine that embodies the present invention.
A cutting device 3 is provided in front of the chassis 2 having the traveling device 1. The cutting device 3 includes a plurality of weeding tools 4 for weeding the planted cereal, a plurality of pulling devices 5 for causing the planted cereal, a cutting blade 6 for harvesting the planted cereal, and the cutting blade A conveying device 7 is provided which sandwiches the grain culm cut at 6 and conveys it to the rear. The conveying device 7 includes a stock transport device 8 behind the cutting blade 6 and a supply transport device 10 that takes over the cereal straw transported from the stock transport device 8 and supplies it to the threshing device 9.

  The reaping device 3 is supported by a reaping device support frame 12 that moves up and down about a rotating shaft 11a provided above a suspension base 11 standing on the front portion of the chassis 2 at its substantially left and right intermediate portions. . The reaping device 3 is configured to move up and down together with the reaping device support frame 12 by tilting a steering lever 14 provided in the operation unit 13 in the front-rear direction.

  Above the chassis 2, the threshing device 9 having a feed chain 15 that takes over and transports the cereals conveyed from the supply conveying device 10, and the right side of the threshing device 9, A grain tank 16 that temporarily stores the grain that has been threshed and an operation unit 13 that is positioned in front of the grain tank 16 and that performs various operations of the combine are mounted. A traveling transmission device 17 that drives the traveling device 1 is provided at the front of the chassis 2.

  Behind the threshing device 9 is a waste chain 18 that takes over and transports the waste that has been transported from the feed chain 15, and a cutter device 19 that cuts the waste after the end of the waste chain 18. Is provided. Moreover, you may mount | wear with other working machines, such as a knotter which binds a waste, behind the cutter apparatus 19 of this Example.

  When the grain amount in the Glen tank 16 is full, the grain is discharged from the milled cylinder 20 and the grain discharge auger 21 to the outside of the machine. The whipping cylinder 20 is configured to be turnable by an electric motor (not shown), and the grain discharge auger 21 is configured to be moved up and down by a hydraulic cylinder 22. And the grain discharge auger 21 is connected with the upper part of the whipping cylinder 20, and is comprised integrally, and when the whipping cylinder 20 turns, the grain discharge auger 21 also turns together.

  Further, the combine determines the position of the sub-shift in the travel transmission device 17 by operating the sub-transmission lever 23 provided in the operation unit 13, and then operates the travel shift lever 24 to drive power from the engine (not shown). Is transmitted to the left and right crawlers 26 and 26 of the traveling device 1 via the hydraulic continuously variable transmission and the traveling transmission device 17 to travel at an arbitrary speed. As described above, the speed is changed by the operation amount of the traveling speed change lever 24, and the combine is moved forward and backward by the forward and backward operations of the traveling speed change lever 24.

  The combine is configured to turn left and right by tilting the steering lever 14 provided in the operation unit 13 in the left-right direction, and further, the turning radius depends on the amount of tilting operation of the steering lever 14 in the left-right direction. It is a configuration to be determined.

  When the harvesting operation is performed by advancing such a combine, the cereals planted in the field scene are weeded by the weeding tool 4, and then caused by the pulling device 5 and by the cutting blade 6. It is a structure that is reaped. Thereafter, the harvested cereals are transported rearward by the stock transporter 8 and are handed over to the supply transporter 10. The cereal that has been handed over to the supply and transport device 10 is further transported rearward and is handed over to the feed chain 15 of the threshing device 9, and the cereal is transported rearward by the feed chain 15 to the threshing device 9. And threshing and sorting.

  The grain thus threshed and sorted is transported from the first lifting cylinder 27 into the Glen tank 16 and temporarily stored, and when the amount of grain stored in the Glen tank 16 is full, the operation unit In this configuration, 13 notification means (buzzer or display device) notify the operator. Thereafter, the cutting operation is interrupted, and the operation for discharging the grains in the Glen tank 16 to the outside of the machine is started. The combine is moved to an arbitrary position (position near the truck), the grain discharge auger 21 is detached from the auger receiver 28, and the grain discharge port 21a is moved to a position such as a truck bed. Then, the grain discharge lever 29 provided in the operation unit 13 is turned on, the grain in the Glen tank 16 is discharged to the outside of the machine, and when the grain discharge in the Glen tank 16 is finished, the grain discharge auger Reference numeral 21 denotes a configuration in which the auger receiver 28 is housed again.

The said threshing apparatus 9 is demonstrated based on FIGS.
3 is a side view of the threshing device 9, FIG. 4 is a plan view of the threshing device 9, and FIG. 5 is a cross-sectional view taken along line AA shown in FIG.

  In the threshing device 9, a handling chamber 33 in which a handling cylinder 31 having a handling net 30 is mounted on a handling cylinder shaft 32, and a processed material from the rear of the handling chamber 33 is received on one side of the handling chamber 33. A dust removal treatment chamber 37 is provided in which a dust removal treatment cylinder 35 having a dust removal treatment net 34 to be processed is mounted on a dust removal treatment cylinder shaft 36. A swing sorting shelf 38 is provided below the handling chamber 33 and the dust removal processing chamber 37.

  A second processing chamber 41 including a second processing drum 39 and a second processing drum receiving rod 40 (which may be a net or a lattice) may be formed in front of the dust removal processing drum 35. In the present embodiment, the second processing cylinder 39 is one side (the Glen tank 16 side) of the handling cylinder 31 and is integrally formed with the dust processing cylinder 35 in front of the dust processing cylinder 35. The second processing cylinder 39 basically processes a second product. Since the second processing cylinder 39 is supported by the second processing cylinder shaft 42, the dust processing cylinder 35 and the second processing cylinder 39 are integrated with the dust processing cylinder shaft 36 and the second processing cylinder 39. The structure is supported by the processing cylinder shaft 42.

  Furthermore, as shown in the cross-sectional view of FIG. 5, the object to be processed that has leaked from the handling net 30 is configured to be taken into the second processing chamber 41, so that the second processing cylinder 39 includes the second object, An object to be processed entering from the inside of the handling chamber 33 is also processed together. The handling net 30, the second treatment cylinder receiving rod 40 (which may be a net or a lattice), and the dust treatment net 34 are provided below the treatment cylinder 31, the second treatment cylinder 39, and the dust treatment cylinder 35, respectively. Yes.

  Below the handling chamber 33, the second processing chamber 41, and the dust removal processing chamber 37, an oscillating sorting shelf 38 that receives and sorts the falling objects to be sorted is installed. Is provided with a tang 43 on the start side of the sorting air feed direction, and an air passage 44 and an air passage 45 are provided on the lower side of the sorting air sent from the tang 43 in the feeding direction. The first spiral 46 is provided on the lower side of 44 and the air passage 45, and the second spiral 47 is provided on the lower side of the first spiral 46 in the sorting wind feed direction. A second lifting cylinder 48 is provided for lifting the second thing collected in the second helix 47 to the second processing chamber 41.

  The configuration of the swing sorting shelf 38 will be described. The swing sorting shelf 38 is a transfer shelf 49 for transporting fallen cereals backward, a grain sheave 38a (crimp net in this embodiment) for sorting cereals, and a second thing in order from the starting end side in the sorting feed direction. A chaff sheave 38b for sorting, and a stroll rack 38c for loosening the dust and collecting the scorpion particles and transferring the dust to the outside and releasing it. Below the Strollac 38c is constituted by a second shelf tip 47a for guiding the second item into the second spiral 47, and the dust removal processing cylinder 35 extends to the vicinity of the terminal end of the second shelf tip 47a. It is the composition which has taken out. The suction fan 50 a is for discharging light dust in the sorting chamber 50 to the outside of the machine, and is configured to be provided on the opposite side of the dust removal processing cylinder 35 with respect to the handling cylinder 31. The grain sheave 38 a is positioned substantially above the first spiral 46, and the chaff sheave 38 b is positioned approximately above the second spiral 47.

  The culm that has been conveyed from the reaping device 3 is handed over to the start end of the feed chain 15 of the threshing device 9, and the cereal that has been handed over to the feed chain 15 is transported rearward and the handling cylinder 31. It is threshed by the handling net 30. A part of the threshed threshing falls on the swing sorting shelf 38 and is sorted by the swinging action of the swing sorting shelf 38 and the wind sorting action from the Kara 43 and is taken into the spiral 46 first. Accordingly, the grain taken into the first spiral 46 is configured to be temporarily stored in the glen tank 16. After the threshing, the waste is handed over from the terminal end of the feed chain 15 to the start end of the waste chain 18 and then sent to the cutter 19 where it is cut and released onto the lower field. It has become.

  The remaining threshing in the handling chamber 31 is conveyed rearward, and a part of the threshing is taken into the second processing chamber 41 along the way. The threshing taken into the second processing chamber 41 is threshed by the interaction between the second processing cylinder 39 and the second processing cylinder receiving rod 40 (particularly, branch branch) The particles are processed) and fall onto the lower swing sorting shelf 38. The handling cylinder 31, the second processing cylinder 39, and the dust removal processing cylinder 35 are configured to rotate clockwise in a situation (a front view of the threshing device 9) when the lower side is viewed from the upper side in the sorting wind feed direction. Accordingly, the direction of the processing teeth 39a of the second processing cylinder 39 is fixed in such a direction as to send the cereals in the upper direction of the sorting wind feed direction.

  That is, the processing teeth 39a have an action of conveying the workpiece to the upper side in the sorting air feed direction, and further have an action of processing the workpiece. That is, the processing tooth 39a is a part of a spiral, and is configured to process the object to be processed by the interaction between the circumferential tip portion thereof and the second processing cylinder receiving rod 40. The blades 39b provided at the conveying terminal end of the second processing cylinder 39 forcibly send the workpiece to the swing sorting shelf 38.

  The dust removal processing teeth 35a at the start end of the dust removal processing cylinder 35 need to be fixed in such a direction as to send the cereals from the rear part of the handling chamber 33 in the lower direction of the sorting wind feed direction. In the present embodiment, the dust removal treatment teeth 35 a have a spiral shape that is wound around the outer peripheral surface of the dust removal treatment cylinder 35.

  In this embodiment, since the mesh of the dust disposal network 34 is rough (lattice), some short sawdust falls on the swing sorting shelf 38, and long sawdust that has not fallen falls into the dust disposal chamber. 37 is transported to the end portion 37 and forcibly discharged onto the stroller 38c by the blade 35b at the end portion of the dust removal processing cylinder 35. While the object to be processed is thus transported in the dust processing chamber 37, the dust processing cylinder 35, the processing teeth 35 c provided with the dust processing cylinder 35 and the dust processing net 34 are provided. Through the interaction, the threshing is further loosened, the threshing is loosened, and the grains (so-called scorpion grains) mixed in are taken out and fall on the lower swing sorting shelf 38, and the second spiral It is configured to be collected into 47.

  As described above, the remaining threshing that does not fall on the swing sorting shelf 38 and is not taken into the second processing chamber 41 due to the cerealing in the handling chamber 33 reaches the end of the handling chamber 33. Be transported. The threshing that has been transported to the end of the handling chamber 33 is taken into the dust removal processing chamber 37, and the taken-in threshing is transported to the lower side in the sorting wind feed direction.

Further, of the cereals that have been transported to the end of the handling chamber 33, the cereals that have not been taken into the dust disposal chamber 37 fall on a swinging sorting shelf 38 below.
In order to prevent clogging of the cereal when the cereal is sent from the end portion in the handling chamber 33 into the dust evacuation processing chamber 37, the dust evacuation treatment cylinder 35 is provided at the hand-over portion from the handling chamber 33 to the dust evacuation treatment chamber 37. Since the spiral-shaped dust exhausting tooth 35a is provided on the outer periphery of the slab, it is configured so that the grain removal is not clogged in the takeover portion by the feeding action of the dust exhausting processing tooth 35a.

  In spite of the swinging action of the swinging sorting shelf 38 and the action of the sorting wind from the red pepper 43, the remaining grains that are not taken into the spiral 46 are further collected together with other dusts. It is sent to the rear and taken into the second spiral 47. The second product taken into the second spiral 47 is reduced to the lower side in the sorting air feed direction of the second processing chamber 41 by the second lifting cylinder 48 and merged with the cereal from the handling chamber 33. Then, while being transported to the upper side of the sorting wind feed direction, it is transported while being threshed by the interaction with the second processing barrel receiving rod 40, and is placed on the lower swing sorting shelf 38 by the blade 39b at the end portion. It is the composition that falls forcibly.

  On the other hand, a sag dropping cylinder 51 having the same diameter as the handling cylinder 31 is provided behind the handling cylinder 31. The scorpion dropping body 51 is provided with a scorpion dropping tooth 51b having the same shape as the tooth handling 31a. The feed chain 15 is configured to be in a state of being substantially parallel to the shaft core 51 a of the barrel 51 by dropping the feed chain 15 at the portion of the cage barrel 51. As a result, the sag drop teeth 51b act efficiently on the wastes conveyed by the feed chain 15, so that the recovery rate of the scorpion grains is improved.

  Further, since the shaft core 51a of the scorpion dropping cylinder 51 is configured coaxially with the handling cylinder shaft 32, the transmission system is simplified. Further, the feed chain 15 is arranged so that the vertical position of the feed chain 15 is substantially the same height as the shaft core 51 a of the scorpion dropping cylinder 51. As a result, the scorpion dropping teeth 51b come into contact with the waste efficiently, so that the recovery efficiency of the scorpion grains is improved.

  The threshing apparatus 9 shown in FIG. 6 has a configuration in which the second processing cylinder 39 and the dust removal processing cylinder 35 are not provided in the above-described threshing apparatus. For this reason, the second product collected by the second helix 47 is configured to be returned to the transfer shelf 49 of the handling chamber 33 and the swing sorting shelf 38 by the second lifting cylinder 48 for processing. And also in the threshing apparatus of the structure of FIG.

  7 and 8 show a BB cross section and a CC cross section shown in FIG. 6, respectively. The teeth 31a of the handle 31 are not inclined with respect to the rotation direction of the handle 31; It is configured so as to be inclined at an angle G. Thereby, the effect | action of a scorpion drop improves, 4th loss decreases, and the recovery rate of a grain comes to improve. The predetermined angle G is preferably about 45 degrees. About the structure of the several sag dropping teeth 51b provided in such a sag dropping cylinder 51, and another Example regarding the sag dropping mentioned later, it is comprised in the threshing apparatus which has provided the 2nd process cylinder 39 and the dust removal process cylinder 35. Produces the same effect.

The configuration in FIG. 9 is another configuration of the BB cross-sectional view shown in FIG. 6, but the number of the sag dropping teeth 51 b may be increased. In the embodiment, it is configured so as to be arranged in four equal parts.
The configuration of FIG. 10 is another configuration of the BB cross-sectional view shown in FIG. 6, but the height H1 of the scorpion dropping teeth 51b may be configured to be higher than the handle teeth 31a. As a result, the action of removing the clam is further improved.

Next, the configuration of FIG. 11 will be described.
The diameter of the scorpion dropping cylinder 51 is configured to be smaller than the diameter of the handling cylinder 31. Specifically, it is configured to taper off from the diameter D of the handling cylinder 31 toward the diameter E of the terminal portion of the barrel 51. Accordingly, the distance between the feed chain 15 and the sash dropping cylinder 51 is increased and the space is widened, so that the vibration of the waste that the sag dropping teeth 51b contact is increased, and the sag dropping action is increased. . Further, by configuring the tip F of the sag drop teeth 51b provided on the sag drop drum 51 to have the same diameter, the action of sag removal is improved.

Next, FIG. 12 will be described.
The feed chain 15 of the handling cylinder 31 part and the feed chain 15a of the scorpion dropping cylinder 51 part are provided independently. And the drive speed of the said feed chain 15 is comprised so that it may change in synchronization with the vehicle speed of a combine. On the other hand, the drive speed of the feed chain 15a is configured to shift in synchronization with the drive speed of the waste transporting device 18 located on the lower side of the feed chain 15a. When the driving speed of the waste transporting device 18 is constant, the driving speed of the feed chain 15a is also constant. As a result, the waste is smoothly conveyed. In this case, the feed chain 15 is configured so as to rotate laterally about a shaft 55 (see FIG. 14) in the front-rear direction below the feed chain 15 as an axis. Inspection of the barrel 31, the handling net 30, etc. becomes easy.

  As for the transmission of the waste transporting device 18, it is driven from the clam drop barrel 51 as shown in the figure. Of course, in the threshing apparatus having the configuration in which the scorpion dropping cylinder 51 is not provided, the threshing apparatus is driven from the handling cylinder 31.

  About the input to the waste conveying apparatus 18, while inputting into the front-end | tip part of the tip lug 18b, it is made to input into the intermediate part of the stock origin chain 18a simultaneously with the input. And it is comprised about the front-end | tip part of the stock former chain 18a so that it may lower below the said input part. Thereby, the waste from the feed chain 15a is smoothly conveyed.

  FIG. 13 is a transmission diagram of the feed chain 15a. The feed chain 15a is driven so as to be driven via a counter belt 54 from one belt 52 that drives the first spiral 46, the second spiral 47, and the tang 43. This simplifies transmission and reduces costs. In addition, since the suction fan 50a is also driven from the belt 52, transmission is simplified.

  The transmission of the feed chain 15a may be configured to be driven via a belt 56 from a terminal sprocket 57 of the feed chain 15 as shown in FIG. In addition, by increasing the drive speed of the feed chain 15a rather than the drive speed of the feed chain 15, generation of dust can be suppressed. Of course, it is necessary to set the speed so as not to affect the scorpion removal.

  Moreover, as shown in FIG. 15, you may comprise so that the feed chain 15 and the feed chain 15a may overlap. As a result, it is possible to prevent spillage when handing over cereal meal (removal) from the feed chain 15 to the feed chain 15a. In this case, as shown in FIG. 16, the feed chain 15 and the feed chain 15a are connected by a frame 58, and the shaft 55 is used as an axial center so as to be integrally rotated to the side. Thereby, the inspection work around the scorpion dropping drum 51 is also facilitated.

Combine left side view Combine front view Side cross section of threshing device Top view of threshing device Cross section of part of threshing device Top view of threshing device Cross section Cross section Cross section Cross section Top view of threshing device Top view of threshing device and partial side view of threshing device Transmission diagram Side view Side view and partial plan view Side view and partial plan view

Explanation of symbols

D Diameter E Diameter F Rotating Diameter G Predetermined Angle 9 Threshing Device 15 Feed Chain 31 Handling Cylinder 33 Handling Chamber 38 Oscillating Sorting Shelf 43 Kara 46 First Spiral 47 Second Spiral 51 Crust Dropping Cylinder 51b Crushing Dropping Teeth

Claims (3)

  A handling cylinder 31 is provided in the handling chamber 33 so as to be pivoted, and a swing sorting shelf 38 is provided below the handling chamber 33. In the threshing device 9 provided with the first helix 46 and the second helix 47 and threshing while conveying the cereal with the feed chain 15, a sash dropping cylinder 51 is provided behind the handling cylinder 31, and the sag dropping cylinder 51 is provided. The threshing apparatus characterized in that the plurality of sag dropping teeth 51b are attached at a predetermined angle G with respect to the rotation direction of the barrel 31.   The threshing apparatus according to claim 1, wherein the threshing apparatus is configured such that the diameter E of the drum 51 is smaller than the diameter D of the handling drum 31.   The threshing apparatus according to claim 1 or 2, wherein a rotation diameter F of a tip end portion of the plurality of sag dropping teeth 51b provided on the sag dropping drum 51 is not changed.

Images