JP2012170391A - Grain thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a constitution for effectively using a processing device disposed in parallel to a threshing cylinder.SOLUTION: The threshing cylinder 13 threshes grain straws 22 conveyed with a grain straw-conveying mechanism 12. A cut-ears processing device 14 processes processing materials occurring when threshing the grain straws 22 with the threshing cylinder 13. A grading device 15 is disposed below the cut-ears processing device 14, and grades the processing materials processed with the cut-ears processing device 14 into clean grains not needing reprocessing and tailings needing the reprocessing. A return conveyer returns the tailings graded with the grading device 15 to the cut-ears processing device 14. The cut-ears processing device 14 comprises a cut-ears processing cylinder 40 rotated around an axis parallel to the axis of the threshing cylinder 13, and a receiving net 41 disposed below the cut-ears processing cylinder 40. The return conveyer returns the tailings to a place near the downstream side from the center of the cut-ears processing cylinder 40 in the grain straw 22-conveying direction.

Description

  The present invention mainly relates to a threshing apparatus. Specifically, the present invention relates to a configuration of a processing apparatus provided adjacent to a handling cylinder in a threshing apparatus.

  There has been known a threshing apparatus that provides tooth handling around a substantially cylindrical handling cylinder and performs threshing by rotating the handling cylinder. With the handling cylinder, the grain attached to the tip of the cereal can be removed.

  However, threshing with the above-described handling cylinder does not necessarily remove only the grain cleanly from the tip, and many grains with a branch raft are generated. In view of this, a configuration is known in which a processing cylinder for processing grains with branch branches is provided adjacent to the processing cylinder and in parallel with the processing cylinder. Such a processing cylinder is disclosed in Patent Document 1, for example. The processing cylinder (dust feeding port No. 2 processing cylinder) provided in the combine described in Patent Document 1 processes the spiked grains, branch branch attachment, etc. that could not be processed by the handling cylinder, and is disposed below the processing cylinder. It is comprised so that the grain shed by the crimping net may be dropped.

  Moreover, the combine described in Patent Document 1 includes a second processing device that reprocesses the second product sorted by the sorting device and removes branch branches. This second processing apparatus removes the branch rachis by rubbing the second thing with the bellflower processing feathers attached to the processing cylinder and the tooth bar protruding from the inner surface of the case.

  However, like the combine of this Patent Document 1, the configuration including a device for processing an object to be processed generated in a handling cylinder and a device for processing a second object sorted by a sorting device as separate bodies, There is a problem that the apparatus becomes complicated and leads to an increase in cost, and the apparatus itself is increased in size.

  On the other hand, the threshing device disclosed in Patent Document 2 discloses a configuration including a processing chamber in communication with a handling chamber. In this processing chamber, a processing cylinder that rotates with a large number of teeth on the outer periphery is disposed substantially parallel to the cylinder. And the sawdust containing the grain which generate | occur | produced in the chamber is separated by rotation of a processing cylinder. In Patent Document 2, the second item sorted by the sorting mechanism is also sent to the processing chamber and separated by the rotation of the processing cylinder.

  As described above, the processing chamber described in Patent Document 2 processes an object to be processed generated in the handling cylinder and a second object sorted by the sorting device. By comprising in this way, compared with the structure of the patent document 1 which processes the to-be-processed object which generate | occur | produced with the handling cylinder, and the 2nd thing sorted by the sorting apparatus with a separate apparatus, the apparatus which aims at cost reduction The whole can also be made compact.

  Moreover, patent document 2 is disclosing the structure which provided the threshing board in which the V-shaped groove | channel (V-shaped groove | channel) was formed in the handling cylinder. This structure does not thresh so as to knock down like a conventional tooth-handling, but threshing by sandwiching the culm and handling it toward the tip. Patent Document 2 can reliably perform the threshing process by configuring in this way, and can significantly reduce the dust generated during threshing as compared with the conventional threshing device. In addition to being able to reduce, it is said that improvement of sorting accuracy can be achieved.

Japanese Patent No. 3814210 JP 2002-112618 A

  In the conventional threshing apparatus, the tooth handling is formed by bending the wire. Thus, since the tooth handling made of a wire rod has a low collision frequency with the cereal basket, it is difficult to improve the efficiency of threshing. In this regard, the plate-shaped threshing plate provided in the threshing device of Patent Document 2 has a higher collision frequency with the cereal basket than the tooth handling made of wire. Therefore, the threshing device disclosed in Patent Document 2 has high processing efficiency, and can quickly remove the ear portion of the cereal.

  By the way, since the threshing device disclosed in Patent Document 2 can quickly remove the ear part of the cereal, the ear part is almost removed at the first half part (upstream side of the cereal conveyance direction) of the barrel. It is. That is, in the threshing apparatus as in Patent Document 2, a large amount of processed material is generated in the first half of the handling cylinder, and there is little processed material generated in the latter half of the processing cylinder (downstream in the conveying direction of the cereal). Therefore, in patent document 2, the to-be-processed object thrown into a process chamber from a handling cylinder will be unevenly distributed to the conveyance direction upstream of the grain candy. If the workpiece is introduced into the processing chamber in a biased state, the entire length of the processing cylinder cannot be used effectively for processing. As described above, in the configuration of Patent Document 2, there is room for improvement in that the processing capability of the processing cylinder is sufficiently exhibited.

  The present invention has been made in view of the above circumstances, and a main object of the present invention is a processing apparatus that improves processing efficiency by effectively using the entire length of the processing cylinder provided in parallel to the handling cylinder. Is to provide.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to the viewpoint of this invention, the threshing apparatus of the following structures is provided. That is, the threshing device includes a cereal conveying mechanism, a handling cylinder, a processing device, a sorting device, and a reduction mechanism. The corn straw transporting mechanism transports the corn straw. The said handling drum shatters the said corn straw conveyed by the said corn straw conveyance mechanism. The said processing apparatus processes the to-be-processed object which generate | occur | produced the grain cereal with the said handling cylinder. The sorting device is disposed below the processing device, and the object to be processed that has been processed by the processing device is classified as a first item that does not require reprocessing, a second item that requires reprocessing, and an unnecessary item. Sort out to the third item to be discharged outside. The reduction mechanism returns the second product sorted by the sorting device to the processing device. The treatment cylinder has a plurality of teeth that protrude outward on the outer peripheral surface of the treatment cylinder. The tooth treatment is formed flat along a plane parallel to the axial direction of the treatment drum, and a plurality of teeth are arranged along the axial direction. Further, when viewed in the axial direction, the tooth handling is disposed such that the tip of the tooth handling faces the downstream side in the rotation direction of the handling drum. The processing apparatus includes a processing cylinder that rotates around an axis parallel to the axis of the handling cylinder, and a receiving net that is disposed below the processing cylinder. And the said reduction | restoration mechanism returns the said 2nd thing to the position which approached the downstream rather than the center of the said process cylinder in the conveyance direction of the said grain candy.

  That is, the workpiece to be processed that is put into the processing cylinder from the handling cylinder is biased to the upstream side in the conveying direction of the cereal, so that the second product from the sorting device is returned to the downstream side of the processing cylinder, so that the processing cylinder It is possible to make the distribution of the workpieces to be supplied uniform in the axial direction of the processing cylinder. Thereby, the processing capability of the processing apparatus can be sufficiently exhibited.

  The threshing device is preferably configured as follows. That is, the processing apparatus includes a plurality of processing teeth protruding outward from the processing cylinder, and a plurality of cutting teeth provided on the receiving net side so as to pass between the processing teeth. . In the conveying direction of the cereal, at least one of the interval between the processing teeth or the length of the processing teeth is different between the upstream portion and the downstream portion from the center of the processing cylinder. Make it.

  In this configuration, when the processing cylinder rotates, the processed object from the handling cylinder and the second object from the sorting device are made into a single grain by the degreasing action of the processing teeth and the receiving net, and fall downward through the receiving net. Can be made. Further, according to the configuration of the present invention, an object to be processed from the handling cylinder is supplied to the upstream side of the processing cylinder, and a second object is supplied from the sorting apparatus to the downstream side. Different contents are processed on the downstream side. Therefore, by making the specifications of the processing apparatus different between the upstream side and the downstream side, it is possible to perform optimal processing, and it is possible to improve the single-granulation ability without causing problems such as an increase in power consumption.

  The threshing device is preferably configured as follows. That is, the threshing device includes a plate-like feed pan having a cross-sectional contour shape of the upper surface formed in a substantially sawtooth shape between the handling cylinder, the processing device, and the sorting device. And the single grain and to-be-processed object which fell from the said handling cylinder and the said processing apparatus are conveyed with the said feed pan, and are supplied to the said sorting apparatus.

  As described above, by providing the feed pan between the handling cylinder and the sorting device, the wind generated by the flat tooth handling hardly affects the sorting wind, and the sorting performance of the sorting device is improved.

Side surface sectional drawing which shows the structure of the threshing apparatus which concerns on one Embodiment of this invention. Front sectional drawing of the threshing apparatus in the front-end part vicinity of a handling cylinder. FIG. The external appearance perspective view of a spike processing apparatus. The top view which shows the mode in a handling chamber.

  Next, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the threshing apparatus 10 of the present embodiment includes a casing 11, a culm transporting mechanism 12, a handling cylinder 13, a panicle processing apparatus (processing apparatus) 14, and a sorting apparatus 15. , Mainly.

  In the casing 11, a handling chamber 16 that is a space for threshing is formed. Inside the handling chamber 16, a handling cylinder 13 and a spear cutting device 14 are arranged.

  The casing 11 has a handling chamber cover 18. The handling chamber cover 18 covers the upper side of the handling cylinder 13 and the cut-off processing device 14 and constitutes a ceiling portion of the handling chamber 16.

  The handling cylinder 13 is configured by a metal plate as a hollow cylinder having a substantially octagonal columnar shape, and is disposed substantially horizontally so that its axis is along the front-rear direction of the apparatus. A plurality of teeth 17 are provided on the outer circumference of the barrel 13 so as to protrude outward. The handling cylinder 13 is configured to be rotationally driven about its axis by a drive source (not shown).

  As shown in FIG. 3, the teeth 17 are formed in a flat shape, and a plurality of teeth 17 are formed side by side in one direction within an extended surface of the flat surface. The handle 17 is attached to the handle 13 so that its flat surface is parallel to the axis of the handle 13. As a result, the plurality of teeth 17 are arranged in a direction parallel to the axis of the barrel 13. As shown in FIG. 3, the distal end portion of the tooth-handling 17 is configured in a substantially V shape whose width narrows toward the distal end. Accordingly, a V-shaped groove 19 whose width increases toward the tip is formed between the adjacent teeth 17. In addition, a round (or polygonal) punch hole 20 is formed in the back of the V-shaped groove 19 so as to communicate with the V-shaped groove 19.

  As shown in FIG. 1, a cereal inlet 21 is formed at the front end of the handling chamber 16. The cereal is introduced into the handling chamber 16 from the cereal introduction port 21 and threshing is performed.

  As shown in FIG. 2, the cereal meal transport mechanism 12 is provided on the side of the casing 11. The cereal conveying mechanism 12 includes a feed chain 23 formed of an endless chain and a pressing member 24 provided so as to be pressed against the upper surface of the feed chain 23. As shown in FIG. 2, in a state where the wheat straw is sandwiched between the feed chain 23 and the pressing member 24, the feed chain 23 is rotationally driven by an unillustrated drive source, thereby moving the wheat straw 22 toward the rear of the apparatus. It is the structure to convey.

  The grain candy 22 introduced into the handling chamber 16 by being conveyed by the corn flour conveying mechanism 12 is fitted into a portion between the tooth handling 17 and the tooth handling 17 (the V-shaped groove 19 and the punched hole 20). When the handling cylinder 13 rotates in the state, it is handled toward the tip 22a. Thereby, only the part of the ear is taken from the cereal basket 22. In addition, the part of the ear taken from the cereal basket 22 in this way is referred to as a spike.

  Here, as shown in FIG. 2, when viewed in the axial direction of the handle cylinder 13, the handle teeth 17 are arranged so that the tip of the handle teeth 17 faces the downstream side in the rotation direction of the handle cylinder 13. It is arranged obliquely with respect to the normal line. Thereby, since the tip 22a can be handled so as to be drawn toward the handle 13, it is possible to remove the ear from the grain pod 22 more reliably.

  In the handling cylinder 13, grains, swarf, and the like are generated in addition to the cutting of the ears. These mixtures are discharged toward the downstream side in the rotation direction of the handling cylinder 13 and fall. At the drop position such as the end of a spike, a breakage processing device 14 is arranged. A mixture such as a piece of spikes, grains, and sawdust introduced into the piece of spike processing apparatus 14 is referred to as an object to be processed. A to-be-processed object is processed with the ear | edge piece processing apparatus 14, and is single-ized (it removes a grain from a branch raft).

  As shown in FIG. 4, the ear piece processing device 14 includes an ear piece processing cylinder (processing cylinder) 40 and a receiving net 41.

  The panicle processing cylinder 40 is formed in a substantially rectangular tube shape, and is arranged so that its axis is parallel to the axis of the handling cylinder 13. The panicle processing cylinder 40 is arranged such that the position of its axial center is lower than the position of the axial center of the handling cylinder 13. Thereby, the to-be-processed object which falls from the handling cylinder 13 can be received reliably. The panicle processing cylinder 40 is rotationally driven by a drive source (not shown) around its axis. In addition, the earbrush processing cylinder 40 has a plurality of processing teeth 42 protruding outward. As shown in FIG. 4, each processing tooth 42 is formed as a flat bar-like member. Further, the plurality of processing teeth 42 are arranged side by side along the axial direction of the earbrush processing cylinder 40. Further, as shown in FIG. 2, the processing teeth 42 are arranged so as to have a receding angle (that is, the tip of the processing teeth 42 is inclined toward the upstream side in the rotational direction of the earbrush processing barrel 40). Is placed).

  The receiving net 41 is provided so as to cover the lower half of the cut-off processing cylinder 40. As shown in FIG. 2, the receiving net 41 is formed along the trajectory of the tip of the processing tooth 42 that rotates when viewed in the axial direction of the cut-off barrel 40. The receiving net 41 has incisors 43 that pass between the processing teeth 42.

  With this configuration, the cuttings introduced into the cutting unit 14 are subjected to a crushing action between the processing teeth 42 and the receiving net 41, and single grain formation is promoted. The grain that has been shattered passes through the receiving net 41 and falls to the sorting device 15. Further, the remaining branches and shavings that have been shattered are separated by passing between the treated teeth 42 and the incisors 43, and are finely cut and fall from the receiving net 41 to the sorting device 15. As described above, grains, swarf, etc. fall from the receiving net one after another, so that a large amount of swarf, etc. does not stay in the ear cutting processing device 14, and high processing efficiency can be maintained.

  As shown in FIG. 2, a receiving tooth 45 is attached to an end portion of the receiving net 41 on the side of the handling cylinder 13 so that the tip thereof faces the direction of the handling cylinder 13. As shown in FIG. 5, the receiving teeth 45 are plate-like members formed so that the tips thereof are substantially V-shaped, and a plurality of the receiving teeth 45 are formed along the axial direction of the handling cylinder 13. As shown in FIG. 5, the receiving teeth 45 are arranged so as to enter between the teeth 17 (V-shaped groove 19).

  By providing such a tooth receiving 45, the cutting device 15 passes through between the handling cylinder 13 and the cutting device 14 without being processed by the cutting device 14 without being processed by the cutting device 14. It is hard to fall. As a result, most of the spikes generated in the handling cylinder 13 can be processed by the spike processor 14. In addition, although a part of the ears and the like fall through between the barrel 13 and the ear piece processing device 14 without being processed by the ear piece processing device 14, even in this case, When the cut or the like passes between the handle teeth 17 and the receiving teeth 45, the breakage and the like are received, and the formation of single grains is promoted. As described above, it is possible to supply the sorting apparatus 15 after reliably processing the cuts of the spikes generated in the handling cylinder 13, so that the efficiency of single graining is excellent and the load on the sorting apparatus 15 can be reduced. it can.

  Here, as compared with a conventional threshing device provided with tooth handling made of wire rods, the superior point of the threshing device provided with tooth handling formed in a flat shape as in this embodiment will be described as follows. is there.

  That is, since the conventional threshing apparatus provided with the tooth handling made of wire rods is threshed by the impact of the tooth handling colliding with the tip, a large amount of sawdust is generated by the collision. For this reason, it was necessary to carry out single graining in an environment with a lot of sawdust, and power consumption was high.

  Since the handling cylinder 13 of this embodiment is the structure which pinches and handles the grain candy 22 with the tooth handling 17, compared with the conventional handling cylinder which threshes by the impact which made the tooth handling collide, generation | occurrence | production of shavings is little. . And the threshing apparatus 10 of this embodiment separates the apparatus (handling cylinder 13) which takes a piece of ears from the grain pod 22, and the apparatus (ear piece processing apparatus 14) which processes a piece of spikes and makes it a single grain. Therefore, it is possible to carry out single graining in an environment with less waste, which saves power.

  In the present embodiment, since the tooth handling 17 is formed in a flat shape, wind is generated by the rotation of the handling cylinder 13. The wind generated by the tooth handling 17 flows through the inside of the handling chamber 16 toward an unillustrated eaves outlet. Thereby, the dust which falls to the sorting device 15 by discharging fine dust decreases. Furthermore, in the present embodiment, as shown in FIG. 2, an air suction port 50 that opens to the handling chamber 16 is formed in the casing 11 below the feed chain 23. By sucking air from the air suction port 50, the wind generated by the rotation of the tooth handling gear 17 can be strongly flowed in the handling chamber 16, so that the dust in the handling chamber 16 is efficiently discharged from the soot outlet. be able to. Thereby, since the dust falling on the sorting device 15 is further reduced, the sorting efficiency of the sorting device 15 can be improved.

  Next, the feed pan 35 will be described. The feed pan 35 is disposed between the handling cylinder 13 and the ear piece processing device 14 and the sorting device 15. Mixtures (hereinafter referred to as selection objects) of grains, swarf, and ears that have fallen from the handling cylinder 13 and the ear piece processing device 14 once fall on the feed pan 35. The feed pan 35 is a plate-like member arranged substantially horizontally. Further, in a cross-sectional view (FIG. 1) when cut along a plane orthogonal to the left-right direction of the apparatus, the cross-sectional contour of the upper surface of the feed pan 35 is formed in a substantially sawtooth shape. In the serrated upper surface, the inclination of the surface facing the front side is steeper than the inclination of the surface facing the rear side. With this configuration, the sorting object that has fallen above the feed pan 35 is conveyed toward the front side of the apparatus by swinging the feed pan 35 back and forth. Further, while being conveyed by the feed pan 35 in this way, the object to be processed is dispersed in the left-right direction of the apparatus. As a result, the object to be processed can be uniformly supplied to the sorting device 15 in the left-right direction of the device.

  Next, the sorting device 15 will be described. The sorting device 15 includes a swing sorting unit 32 and a wind sorting unit 33. The objects to be sorted that have fallen from the receiving net 41 of the panicle processing apparatus 14 are sorted by the swing sorting unit 32 and the wind sorting unit 33.

  The swing sorting unit 32 will be described. The swing sorting unit 32 sorts an object to be sorted by swinging back and forth. The swing sorting unit 32 has a configuration in which a chaff sheave 36 and a chevron plate 37 are arranged in the vertical direction in order from the top.

  The object to be sorted sent to the front side of the apparatus by the feed pan 35 falls on the chaff sheave 36 from the front end of the feed pan 35. The chaff sheave 36 includes a plurality of chaff fins 46 that are horizontally mounted in the left-right direction of the apparatus, arranged in the front-rear direction of the apparatus. The chaff sheave 36 is used for rough sorting of the sorting object sent from the feed pan 35. That is, by swinging the chaff sheave 36 back and forth, heavy and small items to be sorted such as grains fall down between the chaff fins 46, and light and large items to be sorted such as sawdust are caught by the chaff fins 46. Remain.

  Each chaff fin 46 is arranged so that the upper surface thereof faces obliquely forward. As a result, the entire chaff sheave 36 is swung back and forth so that the object to be sorted is conveyed toward the rear side of the apparatus while being swung and sorted. Most of the grain falls before reaching the rear end of the chaff sheave 36, and only a piece of spikes and shavings remain on the chaff sheave 36.

  However, there are not a few ears and shavings that fall between the chaff fins 46. When a large amount of spikes or sawdust fall from the chaff sheave 36, there is a problem that the sorting ability of the wind sorting section 33 is lowered due to being caught on the grain sheave 39. Therefore, in the threshing apparatus 10 according to the present embodiment, a plurality of angle plates 37 are arranged between the chaff sheave 36 and the grain sheave 39.

  The angle plate 37 is formed in a plate shape and is disposed so as to be orthogonal to the substantially left-right direction of the apparatus. Further, the plurality of angle plates 37 are arranged side by side in a substantially left-right direction of the apparatus. Here, as described above, the chaff fins 46 are arranged substantially in the left-right direction of the apparatus. There are many. Therefore, by providing a plurality of chevron plates 37 arranged so as to be orthogonal to the lateral direction of the apparatus, it is possible to catch cuts, scraps, and the like that have fallen from between the chaff fins 46 by being caught on the chevron plates 37. . As a result, it is possible to prevent a large amount of spikes, scraps, etc. from falling on the grain sieve. In addition, the grain that has been selected and dropped by the chaff sheave 36 can fall between the chevron plates 37 to the grain sheave 39.

  The upper end surface of the angle plate 37 is formed in a substantially sawtooth shape. This sawtooth-shaped upper end surface has a steeper inclination of the surface facing backward than the inclination of the surface facing forward. As a result, by swinging the angle plate 37 back and forth, it is possible to transport the cuts of the ears, sawdust, etc. that are caught on the angle plate 37 toward the rear side of the apparatus.

  Next, the wind sorting unit 33 will be described. The wind sorting unit 33 includes a tang fan 38 and a grain sheave 39.

  Glen sieve 39 is configured as a mesh-like press or crimp net, and is arranged below angle plate 37. A first conveyor 47 configured as a screw conveyor is disposed below the grain sieve 39.

  The Chinese fan 38 is configured to generate a sorting wind that is obliquely rearward and upward, and to apply the sorting wind to the Glen sheave 39 from below.

  With the above configuration, the sorting wind generated by the red pepper fan 38 is applied to the object to be sorted that has fallen on the grain sieve 39. A heavy specific gravity that falls almost vertically regardless of the sorting wind, that is, a grain, is called the first thing. The first object is introduced into the first conveyor 47, and the other lighter specific ones are blown away backward.

  The first thing (grain) introduced into the first conveyor 47 is conveyed by the first conveyor 47 and stored, for example, in a Glen tank (not shown). As described above, the grain can be selected and extracted from the selection object.

  In addition, the threshing apparatus 10 of this embodiment has the cleaning brush 51 in order to prevent the glen sieve 39 from being clogged with a piece of spikes or sawdust. This cleaning brush is a cylindrical brush arranged along the left-right direction of the apparatus, and is configured to be driven to rotate about its axis. The cleaning brush 51 is configured to be able to reciprocate in the front-rear direction of the apparatus over the grain sheave 39 by an appropriate mechanism such as a toothed belt or a rack and pinion. By moving the cleaning brush 51 back and forth and rotating, it is possible to remove the cuttings and shavings caught on the grain sieve 39 and prevent the sorting ability from being lowered. The cleaning brush 51 may be rotated and moved back and forth constantly or intermittently.

  A second conveyor 48 configured as a screw conveyor is disposed below the rear end portions of the chaff sheave 36, the chevron plate 37, and the grain sheave 39.

  Spear cuts, sawdust, etc. remaining on the chaff sheave 36 and the chevron plate 37 are conveyed to the rear side of the apparatus and fall onto the second conveyor 48. Further, among the objects to be processed that have fallen on the grain sieve 39, cuts of ears, scraps, etc. blown off by the sorting wind of the Kara fan 38 also fall on the second conveyor 48. The wind sorting unit 33 has a blower fan 49 that applies a wind upward to the sorting object falling on the second conveyor 48.

  Of the items to be sorted that fall on the second conveyor 48, the ears with grains and the like are relatively heavy, so they fall and are introduced into the second conveyor 48 regardless of the wind of the blower fan 49. On the other hand, unneeded items (third product) such as swarf without grain are blown off by the wind of the blower fan 49 and discharged out of the apparatus from a not-shown culm outlet.

  Ears with grains are worth collecting because they can be taken out again by applying the single grain process again. Such an object to be made into a single grain again is called a second product. The second product sorted by the wind sorting unit 33 and introduced into the second conveyor 48 is conveyed by the second conveyor 48 and supplied to the end of the reduction conveyor (reduction mechanism) 52. The reduction conveyor 52 is configured as a screw conveyor, and is configured to return the second item to the ear burner 14. The second product reduced to the ear-cut processing device 14 is reprocessed in the ear-cut processing device 14 and the grain is taken out.

  In addition, the conventional threshing apparatus was set as the structure separately provided with the apparatus which processes the piece which generate | occur | produced with the handling cylinder, and the apparatus which processes a 2nd thing. In this regard, the ear-break processing device 14 provided in the threshing apparatus 10 of the present embodiment serves both as a role for processing the ear-break that occurs in the handling cylinder 13 and a role for processing the second item. Thus, since one piece is processed with a single apparatus, the cost of the threshing apparatus 10 can be reduced.

  Next, the characteristic configuration of the present invention will be described in detail.

  As the grain basket 22 introduced into the handling chamber 16 is picked up by the grain transport mechanism 12, the portion of the spike is removed, so that the amount of the processing object generated on the upstream side in the transport direction (the front side of the apparatus) is large. The amount of workpieces generated on the downstream side (rear side of the apparatus) is reduced. For this reason, the quantity of the processed material thrown into the ear piece processing apparatus 14 is large on the upstream side in the conveying direction of the grain pod 22 and small on the downstream side. In other words, the workpiece to be introduced from the handling cylinder 13 into the earbrush processing device 14 is biased toward the upstream side (the device front side) of the grain pod 22 in the conveying direction.

  As described above, since the object to be processed from the handling cylinder 13 is biased to the front side, the rear side of the ear-break processing device 14 cannot be effectively used as it is.

  Therefore, in the threshing apparatus 10 according to the present embodiment, the second item is located at a position closer to the downstream side than the center position of the earbrush processing cylinder 40 in the conveying direction of the grain trough 22 (that is, the rear side of the earbrush processing cylinder 40). The reduction conveyor 52 is arranged so as to reduce

  In this way, the ears to be processed by the ear-break processing device 14 are reduced by reducing the second thing to a place where the supply amount of the object to be processed from the handling cylinder 13 is small (that is, the rear side of the ear-cut processing cylinder 40). The distribution of cuts and the like can be made uniform in the axial direction of the panicle processing cylinder 40. Thereby, since the end-of-ear treatment apparatus 14 can be used effectively over the entire length thereof, the performance of the end-of-ear treatment apparatus 14 can be sufficiently exhibited and high processing efficiency can be realized.

  In addition, as mentioned above, in the ear-cut processing apparatus 14 of this embodiment, the to-be-processed object from the handling cylinder 13 is upstream in the conveyance direction of the grain straw 22, and the second thing from the sorting apparatus 15 is downstream. , Will handle mainly. Here, the object to be processed introduced from the handling cylinder 13 and the second object from the sorting device 15 are different in content configuration. For example, since the second product from the sorting device 15 has been processed once by the panicle processing device 14, it is more finely cut than the workpiece to be fed from the handling cylinder 13.

  Therefore, the threshing apparatus 10 according to the present embodiment is configured such that appropriate processing can be performed by changing the specifications of the cutting end processing apparatus 14 between the first half part and the second half part.

  More specifically, as shown in FIG. 4 and FIG. 5, in the conveying direction of the culm 22, a portion downstream of the center of the earbrush processing cylinder 40 (that is, the latter half part of the earbrow processing cylinder 40, reference numeral 40 b). ) Is narrower than the upstream portion (i.e., the first half portion of the cut-off processing cylinder 40, the portion indicated by reference numeral 40a). By comprising in this way, since the to-be-processed object from the handling cylinder 13 and the 2nd thing from the sorting apparatus 15 can be processed appropriately according to the content structure, Processing efficiency can be improved.

  As described above, the threshing apparatus 10 of the present embodiment has the feed pan 35 disposed between the handling cylinder 13 and the sorting apparatus 15. Since the teeth 17 arranged on the outer periphery of the handle 13 are formed in a flat shape, a powerful wind is generated when the handle 13 rotates. Therefore, the wind generated by the tooth handling 17 may adversely affect the sorting wind in the wind sorting unit 33. In this respect, in the threshing apparatus 10 of this embodiment, the feed pan 35 plays a role of avoiding wind by arranging the feed pan 35 under the handling cylinder 13. Thereby, it is possible to prevent the wind generated by the rotation of the handling cylinder 13 from adversely affecting the sorting wind in the wind sorting unit 33.

  As described above, the threshing apparatus 10 according to the present embodiment includes the culm transport mechanism 12, the handling cylinder 13, the ear piece processing apparatus 14, the sorting apparatus 15, and the reduction conveyor 52. The corn straw transporting mechanism 12 transports the corn straw 22. The handling cylinder 13 sheds the culm 22 transported by the culm transport mechanism 12. The ear-cut processing device 14 processes an object to be processed that is generated by threshing the cereal grains 22 with the handling cylinder 13. The sorting device 15 is arranged below the ear-break processing device 14, and the processed object processed by the ear-break processing device 14 is the first thing that does not need reprocessing, and the second thing that needs to be reprocessed, Sort into 3 items that are discharged outside the machine as unnecessary items. The reduction conveyor 52 returns the second item sorted by the sorting device 15 to the cut end processing device 14. The handling cylinder 13 has a plurality of handling teeth 17 projecting outward on the outer peripheral surface of the handling cylinder 13. The handle teeth 17 are formed flat along a plane parallel to the axial direction of the handle cylinder 13, and a plurality of teeth are arranged along the axial direction. Further, when viewed in the axial direction, the tooth handling 17 is arranged so that the tip of the tooth handling 17 faces the downstream side in the rotation direction of the handling cylinder 13. The ear-cut processing device 14 includes a ear-cut processing cylinder 40 that rotates about an axis parallel to the axis of the handling cylinder 13, and a receiving net 41 that is disposed below the ear-cut processing cylinder 40. Then, the reduction conveyor 52 returns the second item to a position closer to the downstream side than the center of the earbrush processing cylinder 40 in the conveying direction of the grain basket 22.

  In other words, since the workpiece to be fed from the handling cylinder 13 to the earbrush processing cylinder 40 is biased to the upstream side in the conveying direction of the grain basket 22, the second item from the sorting device 15 is downstream of the earbrush processing cylinder 40. By reducing to the side, it is possible to make the distribution of the object to be processed supplied to the earbrush processing cylinder 40 uniform in the axial direction of the earbrow processing cylinder 40. Thereby, the processing capability of the ear piece processing apparatus 14 can fully be exhibited.

  Moreover, the threshing apparatus 10 of this embodiment is comprised as follows. That is, the ear cutting device 14 includes a plurality of processing teeth 42 protruding outward from the ear cutting processing cylinder 40 and a plurality of cutting teeth provided on the receiving net 41 side so as to pass between the processing teeth 42. Teeth 43. Then, in the conveying direction of the cereal basket 22, the interval between the processing teeth 42 is different between the upstream portion and the downstream portion of the center of the spike cutting cylinder 40.

  With this configuration, when the cutting piece cylinder 40 is rotated, the object to be processed from the handling cylinder 13 and the second object from the sorting device 15 are made into a single grain by the degreasing action of the processing teeth 42 and the receiving net 41. It can be dropped downward through the receiving net 41. Further, according to the configuration of the present invention, the object to be processed from the handling cylinder 13 is supplied to the upstream side of the cutting piece processing cylinder 40, and the second object is supplied from the sorting device 15 to the downstream side. The cut processing device 14 processes different content configurations on the upstream side and the downstream side. Therefore, by making the specs of the spike processing apparatus 14 different between the upstream side and the downstream side, it is possible to perform an optimal process, and it is possible to improve the single grain capacity without causing problems such as an increase in power consumption.

  Moreover, the threshing apparatus 10 of this embodiment is comprised as follows. That is, the threshing apparatus 10 includes a plate-like feed pan 35 having a cross-sectional contour shape of the upper surface formed in a substantially sawtooth shape between the handling cylinder 13 and the ear-cut processing device 14 and the sorting device 15. . Then, the single grains and the object to be processed that have fallen from the handling cylinder 13 and the cut-off processing device 14 are conveyed by the feed pan 35 and supplied to the sorting device 15.

  Thus, by providing the feed pan 35 between the handling cylinder 13 and the sorting device 15, the wind generated by the flat tooth handling 17 is less likely to affect the sorting wind, and the sorting performance of the sorting device 15 is improved.

  The preferred embodiment of the present invention has been described above, but the above configuration can be modified as follows, for example.

  The threshing apparatus of the present invention can be applied to various threshing apparatuses such as a stationary threshing apparatus, a threshing apparatus with a built-in harvester, and a threshing apparatus with a built-in combine.

  The handling cylinder 13 may be formed in a truncated cone shape in which the diameter continuously changes so that the diameter on the front side of the apparatus is small and the diameter on the rear side of the apparatus is large. In this case, on the front side of the handling cylinder 13, a sufficient space can be secured between the handling cylinder 13 and the handling chamber cover 18, so that it is possible to improve the uptake ability of the cereal.

  In the said embodiment, although it was set as the structure which changes the space | interval of the processing tooth 42 in the upstream and downstream of the conveyance direction of the grain basket 22, it replaces with this, or in addition to this, a processing tooth in the upstream and downstream The length of 42 may be changed.

DESCRIPTION OF SYMBOLS 10 Threshing apparatus 13 Handling cylinder 14 Panicle processing apparatus (processing apparatus)
15 Sorting device 17 Teeth handling 40 Bread cutting cylinder (processing cylinder)
41 Receiving net 42 Processing teeth 43 Cutting teeth 45 Receiving teeth 52 Reduction conveyor (reduction mechanism)

Claims (3)

A cereal conveying mechanism for conveying cereals;
A barrel that sheds the cereals that are conveyed by the cereal conveyance mechanism;
A processing device for processing an object generated by threshing cereal grains with the handling cylinder;
A sorting device that is arranged below the processing device and sorts the object to be processed, which is processed by the processing device, into the first item that does not require reprocessing and the second item that requires reprocessing,
A reduction mechanism for returning the second product sorted by the sorting device to the processing device;
With
The handling cylinder has a plurality of teeth that protrude outward on the outer peripheral surface of the handling cylinder,
The teeth are formed flat along a plane parallel to the axial direction of the barrel, and a plurality of the teeth are aligned along the axial direction.
When viewed in the axial direction, the tooth handling is arranged such that the tip of the tooth handling faces the downstream side in the rotation direction of the handling drum,
The processing apparatus includes a processing cylinder that rotates about an axis parallel to the axis of the handling cylinder, and a receiving net disposed below the processing cylinder,
The threshing apparatus, wherein the reduction mechanism returns the second product to a position closer to the downstream side than the center of the processing cylinder in the conveying direction of the cereal. The threshing device according to claim 1,
The processing device includes a plurality of processing teeth protruding outward from the processing cylinder, and a plurality of cutting teeth provided on the receiving net side so as to pass between the processing teeth.
In the conveying direction of the cereal, at least one of the interval between the processing teeth or the length of the processing teeth is different between the upstream portion and the downstream portion from the center of the processing cylinder. A threshing apparatus characterized by comprising: A threshing apparatus according to claim 1 or 2,
A plate-like feed pan in which the cross-sectional contour shape of the upper surface is formed in a substantially sawtooth shape is provided between the handling cylinder and the processing device, and the sorting device,
A threshing apparatus, wherein single grains and an object to be processed that have fallen from the handling cylinder and the processing apparatus are conveyed by the feed pan and supplied to the sorting apparatus.

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