JP2005013106A - Second crop-returning structure for threshing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a second crop-returning structure for a threshing apparatus ensuring improving separation efficiency or separation accuracy at a separatory section. <P>SOLUTION: This second crop-returning structure for the threshing apparatus comprises the separatory section 3 for subjecting a treated product after threshed to separatory treatment and a second crop-returning mechanism 19 functioning to release and return a second crop after separated by the section 3 from the separation terminal end side of the section 3 to the separation initial end side, and also includes a dust-discharging mechanism 31 functioning to suck dust contained in the second crop released from the second crop-returning mechanism 19 and discharge the dust out of the thresher. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a sorting unit that performs a sorting process on the processed product after the threshing process, and a second reduction that releases and reduces the second product after sorting by the sorting unit from the sorting end side of the sorting unit to the sorting start end side. It is related with the 2nd reduction | restoration structure of a threshing apparatus provided with the mechanism.
[0002]
[Prior art]
Conventionally, after sorting by the sorting unit, the second item having a high content rate of dust such as branches and straw scraps is reduced to the sorting start end side of the sorting unit and re-sorted while maintaining the high content rate. It was like that.
[0003]
[Patent Document 1]
JP 2001-95362 A (paragraph number 0016, FIG. 1)
[0004]
[Problems to be solved by the invention]
Since the processed product having a higher grain content is supplied toward the sorting start end side, the sorting unit selects the grain selected on the sorting start end side as the first item from the sorting start end side to the first recovery unit below it. It is configured to leak from the sorting end side to the second collection part below it as a second thing, such as a mixture of grain and dust with branch branches that did not leak from the sorting start end side. Yes.
[0005]
However, conventionally, since the second product having a high dust content rate is directly reduced to the sorting start end side of the sorting section, the grain content rate of the processed product at the sorting start end side is reduced, and thus the sorting is performed. It becomes difficult to sort the grain on the starting end side and let it fall to the first recovery part below, and as a result, the sorting efficiency and the sorting accuracy are lowered.
[0006]
An object of the present invention is to improve the sorting efficiency and sorting accuracy in the sorting unit.
[0007]
[Means for Solving the Problems]
As means for solving the above-mentioned problems, in the present invention, a sorting unit that performs a sorting process on a processed product after the threshing process, and a second product after sorting by the sorting unit is a sorting terminal side of the sorting unit. In the second reduction structure of the threshing device provided with the second reduction mechanism that releases and reduces to the sorting start end side, the dust contained in the second thing released from the second reduction mechanism is sucked and discharged outside the apparatus. Equipped with a dust removal mechanism.
[0008]
In this way, when the second product after sorting by the sorting unit is released and reduced by the second reduction mechanism to the sorting start end side of the sorting unit, the specific gravity of the second product released from the second reduction mechanism is light. Dust such as branches and straw scraps can be sucked out by the dust removal mechanism and discharged to the outside of the machine. As a result, the second item with reduced dust content is returned to the sorting start end of the sorting unit. it can.
[0009]
As a result, the sorting start point resulting from the reduction of the second product having a high dust content rate to the sorting start end side of the sorting unit to which the processed product having a high grain content rate of the processed product after the threshing process is supplied The grain content on the side can be prevented from decreasing, and this can promote the leakage of the grain from the sorting start end side to the first recovery unit located below the sorting section. The sorting efficiency and sorting accuracy can be improved.
[0010]
In one of the means for making the present invention more suitable, the suction part of the dust removal mechanism is positioned higher than the discharge reduction path through which the second thing discharged from the second reduction mechanism passes. It is arranged.
[0011]
If it does in this way, among the 2nd thing discharge | released from a 2nd reduction | restoration mechanism, dust with light specific gravity will rise from a discharge | release reduction path | route, when it discharge | releases from a 2nd reduction | restoration mechanism, and is attracted | sucked by the suction part of a dust removal mechanism. The On the other hand, a grain having a high specific gravity does not soar from the release reduction path and gradually descends, so that it is not sucked by the suction part of the dust removal mechanism.
[0012]
In other words, the dust removal mechanism can effectively remove dust from the second thing, and the dust removal mechanism can avoid the occurrence of a grain loss in which the grain in the second thing is discharged out of the machine. In addition to further improving the sorting efficiency and sorting accuracy in the sorting section, it is possible to improve the grain recovery efficiency.
[0013]
In one of the means for making the present invention more suitable, the suction portion of the dust removal mechanism is disposed at a position facing a receiving net laid along the handling cylinder, and the suction portion And a shielding body for preventing inflow of grains leaked from the receiving net.
[0014]
If it does in this way, only the dust of light specific gravity of the processing thing leaking out from a receiving net will be sucked by the dust removal mechanism, and will be discharged outside the machine, and the grain which leaks out from the receiving net will be caused by the dust removal mechanism by the shield. Suction discharge is prevented.
[0015]
In other words, it is possible to remove dust from the processed material leaking from the receiving net by the dust removal mechanism, while avoiding the occurrence of grain loss in which the grains in the processed material are discharged out of the machine by the dust removal mechanism. As a result, it is possible to further improve the sorting efficiency and sorting accuracy in the sorting unit and improve the grain recovery efficiency.
[0016]
In one of the means for making the present invention more suitable, the dust removal mechanism is interlocked with the tang that generates the sorting wind.
[0017]
In this way, the transmission structure can be simplified as compared with the case where a dedicated transmission system extending from the engine to the dust removal mechanism is provided.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a longitudinal side view of a threshing device mounted on a combine, and FIG. 2 shows a partial longitudinal front view thereof. This threshing device is placed in a lateral posture by a feed chain 1 arranged on the left side thereof. In the threshing unit 2 that performs the threshing process on the tip side of the harvested cereal meal that is carried and held, the sorting unit 3 that performs the sorting process on the processed product after the threshing process from the threshing unit 2, and the sorting unit 3 It is comprised by the collection | recovery part 4 etc. which collect | recover the 1st thing and the 2nd thing among the sorted processed materials.
[0019]
The threshing unit 2 includes a handling cylinder 5 that is driven to rotate around a longitudinal axis, a receiving net 6 that is laid along a lower portion of the handling cylinder 5, and a dust feeding port 7 that is formed behind the receiving net 6. , Etc., and the grains are separated into single grains from the harvested grains that are held and conveyed by the feed chain 1 between the handling cylinder 5 and the receiving net 6, and with the cereal grains, the branch is attached. Cereal grains and dust are leaked from the receiving net 6 toward the sorting unit 3, and grains or dust with branch branches that have not leaked from the receiving net 6 are passed from the dust feed port 7 to the sorting unit 3. discharge.
[0020]
The sorting unit 3 is disposed between the swing sorting mechanism 8 provided below the receiving net 6, the tang 9 disposed in front of and below the swing sorting mechanism 8, and the swing sorting mechanism 8 and the Karatsu 9. An eccentric drive mechanism that includes the first sub-carp 10 and the second sub-carp 11 disposed in the middle of the front and rear of the swing sorting mechanism 8, and the swing sorting mechanism 8 is disposed at the rear thereof. The processed product from the threshing unit 2 is subjected to sieving by being driven to oscillate by the operation of No. 12, and the Kara 9 and the auxiliary Kara 10 and 11 supply the sorting air toward the oscillating sorting mechanism 8. Thus, wind sorting is added to the processed material that is sieve-sorted by the swing sorting mechanism 8. And by these selection operation | movement, the processed material from the threshing part 2 is made into the grain as the 1st thing, the mixture of the grain with a branch raft and dust as the 2nd thing, and the branch as the 3rd thing. Sort into dust such as infarction and straw scraps.
[0021]
In addition, the code | symbol 13 shown in FIG. 1 is a spreading | diffusion cylinder which provides a loosening effect | action to the grain with a branch raft etc. which were discharged | emitted from the dust delivery port 7 to the selection part 3, and the code | symbol 14 attracts | sucks dust and is outside the machine. It is a dust exhaust fan that exhausts the air.
[0022]
The collection unit 4 is disposed below the first collection unit 15 disposed below the front side which is the sorting start end side of the swing sorting mechanism 8 and below the rear side which is the sorting end side of the swing sorting mechanism 8. No. 2 recovery unit 16, etc., and No. 1 recovery unit 15 recovers the grain (No. 1) of the processed materials sorted by the sorting unit 3, The first screw 17 arranged in the left-right direction at the bottom is conveyed toward a lifting conveyor (not shown) connected to the right end. The second collection unit 16 collects the mixture (second product) among the processed products sorted by the sorting unit 3, and the collected collection product No. 2 is arranged in the left and right direction at the bottom. The screw 18 is conveyed toward the second reduction mechanism 19 connected to the right end thereof.
[0023]
By the way, the lifting conveyor lifts the grain (No. 1) conveyed by the No. 1 screw 17 and supplies it to the grain tank outside the figure arranged in parallel on the right side of the threshing device. The reduction mechanism 19 lifts the mixture (second thing) conveyed by the second screw 14 and reduces it from the sorting end side of the swing sorting mechanism 8 to the sorting start end side.
[0024]
The swing sorting mechanism 8 receives the processed material leaked from the front half of the receiving net 6 and transfers it to the rear while sorting the specific gravity difference, and the processed product received by the first Glen pan 20 and the receiving material. Processes discharged from the chaff sheave 21 and the dust feed port 7 for coarsely sorting and removing grains from the processed material leaked from the latter half of the net 6 and transferring the remaining processed material backward. Auxiliary gren pan 22 that receives the product and transfers it backward while sorting the specific gravity, and sifts the grain with branches and branches from the processed product transferred by auxiliary glen pan 22 and leaks the remaining processed product Sieving the grain with branches and branches from among the plurality of sieve wires 23 that are transferred rearward and the processed products transferred by the chaff sheave 21 and let them fall into the second recovery unit 16 and the remaining processed products Facing backwards The Strollac 25 that is transported and discharged to the outside of the machine from the dust outlet 24 formed at the rear of the swing sorting mechanism 8 and the processed material leaked from the front side of the chaff sheave 21 are received and directed toward the rear while sorting the specific gravity difference. The second grain pan 26 to be transferred and the processed product transferred by the second grain pan 26 and the processed product leaked from the rear side of the chaff sheave 21 are finely selected and allowed to leak and the remaining processed product is dropped. It is comprised by the Glen sheave 27 etc. which move toward back.
[0025]
As shown in FIGS. 1, 3, and 4, the second reduction mechanism 19 removes the branch stem from the grain with branch branch for the second item conveyed by the second screw 14. The first grain pan of the swinging sorting mechanism 8 which feeds the second grain after the single graining processing by the single graining processing unit 28 and the first graining processing unit 28 which performs the sorting start side of the sorting unit 3 A transport discharge unit 29 that discharges toward 20 is formed.
[0026]
As shown in FIGS. 1 to 5, the right side wall 30 of the threshing device is equipped with a dust discharge mechanism 31 that sucks dust contained in the second object discharged from the second reduction mechanism 19 and discharges it outside the apparatus. The dust discharge mechanism 31 is located at a position higher than the release reduction path 32 through which the second thing released from the second reduction mechanism 19 passes, and at a position facing the receiving net 6, A dust exhaust duct 34 that guides the dust sucked by the suction portion 33 to flow down to the rear lower part of the machine body.
[0027]
The suction part 33 is equipped with a suction fan 36 for sucking dust from the opening 35 formed in the right side wall 30 and a shield 37 for preventing the inflow of grains leaked from the receiving net 6. The shield 37 is formed in a bowl shape having a diameter larger than that of the opening 35 through a belt-type transmission mechanism 38, and a suction gap 39 is formed between the peripheral end of the shield 37 and the right side wall 30. Is attached to the right side wall 30.
[0028]
From the above configuration, the dust removal mechanism 31 is also driven during the threshing and sorting operation in which the Kara 9 and the like are driven, and thereby the specific gravity that soars from the discharge reduction path 32 of the second thing discharged from the second reduction mechanism 19. Light dust is sucked out by the dust removal mechanism 31 and discharged in a state where scattering from the rear lower part of the fuselage to the upper side is suppressed, and the second thing whose dust content is reduced is the first grain pan of the swing sorting mechanism 8. Reduced to 20.
[0029]
As a result, the second product having a high dust content is reduced to the first grain pan 20 of the rocking and sorting mechanism 8 to which the processed product having a high grain content of the processed products after the threshing process is supplied. The fall of the grain content rate in the processed material by which specific gravity difference selection is carried out by the 1st grain bread 20 which originated can be avoided.
[0030]
In addition, by arranging the dust removal mechanism 31 as described above, the dust removal mechanism 31 is not limited to the dust in the second object reduced by the second reduction mechanism 19, but also the red pepper 9, the first auxiliary red pepper 10, and the like. The dust that soars due to the sorting air from the air and the dust in the processed material that leaks from the receiving net 6 are also sucked and discharged from the lower rear part of the machine body, whereby the dust is sucked and discharged only by the dust fan 14. Compared to the case, dust can be effectively removed.
[0031]
Furthermore, by the arrangement setting of the dust removal mechanism 31 and the equipment of the shield 37, suction by the dust removal mechanism 31 of the grains contained in the second thing reduced by the second reduction mechanism 19 and the processed material leaked from the receiving net 6. Since the inflow to the dust removal mechanism 31 is prevented, the occurrence of a grain loss in which the grain is discharged out of the machine by the dust removal mechanism 31 can be avoided.
[0032]
That is, it is possible to improve the sorting efficiency, sorting accuracy, and grain recovery efficiency in the sorting unit 3.
[0033]
As shown in FIG. 6, the discharge end of the transport discharge unit 29 in the second reduction mechanism 19 is lifted by the lifting screw 41 of the transport discharge unit 29 instead of the discharge plate 40 shown in FIGS. 3 and 4. The sent second product is subjected to a single grain process such as removing the branch plant from the grain with branch plant, and the second product after the process is directed to the first grain pan 20 of the swing sorting mechanism 8 If the single-grain discharge part 42 configured to be discharged is equipped, the second granule to be reduced on the first grain pan 20 of the swing sorting mechanism 8 is further promoted, and the dust discharging mechanism 31 is further promoted. As a result, it becomes possible to more effectively remove dust from the second product released from the second reduction mechanism 19, thereby further improving the sorting efficiency, sorting accuracy, and grain recovery efficiency in the sorting unit 3. be able to.
[0034]
In addition, as shown in FIG. 7, if the driving speed of the red pepper 9 is changed according to the amount of processed material, the selected wind from the red pepper 9 can be adjusted to a suitable wind force according to the amount of processed material. In addition to being able to perform suitable wind selection according to the amount of material, the driving speed of the dust removal mechanism 31 linked to the Karatsu 9 can also be changed to a speed according to the amount of treatment, and the suction and discharge of dust by the dust removal mechanism 31 can be used as the amount of treatment. As a result, it is possible to improve the sorting efficiency, sorting accuracy, and grain recovery efficiency in the sorting unit 3.
[0035]
Reference numeral 43 shown in FIG. 7 is a split pulley that enables the gear 9 to change speed, reference numeral 44 is a cam mechanism that changes the interval between the split pulleys 43, and reference numeral 45 operates the cam mechanism. An electric motor 46 is a sensor for detecting the amount of processed material deposited on the chaff sheave 21 of the swing sorting mechanism 8. Reference numeral 47 controls the operation of the electric motor 45 based on the detection from the sensor 46. Reference numeral 48 denotes an engine mounted on a traveling machine body (not shown), and reference numeral 49 denotes a threshing transmission system that transmits the power from the engine 48 to the handling cylinder 5, the red pepper 9, and the like.
[Brief description of the drawings]
[Fig. 1] Vertical side view of threshing device [Fig. 2] Partial vertical front view of threshing device [Fig. 3] Vertical side view of the main part showing the configuration of No. 2 reduction structure [Fig. 4] Configuration of No. 2 reduction structure FIG. 5 is a longitudinal front view of the main part showing the structure of the dust removal mechanism. FIG. 6 is a threshing apparatus showing a structure in which the single particle discharge part is provided in the transport discharge part of the second reduction mechanism. [Fig.7] Schematic diagram showing the configuration of the gearbox and dust removal mechanism capable of shifting gears [Description of symbols]
3 Sorting part 5 Handling cylinder 6 Receiving net 9 Kara 19 No. 2 reduction mechanism 31 Dust removal mechanism 32 Release reduction path 33 Suction part 37 Shield

Claims (4)

A sorting unit that performs a sorting process on the processed product after the threshing process, and a second reduction mechanism that releases and reduces the second product sorted by the sorting unit from the sorting end side to the sorting start end side of the sorting unit. No. 2 reduction structure of the threshing device,
A second reduction structure of a threshing apparatus equipped with a dust removal mechanism that sucks and discharges dust contained in the second thing released from the second reduction mechanism to the outside of the machine. The 2nd reduction structure of the threshing apparatus of Claim 1 which has arrange | positioned the suction part of the said dust removal mechanism in the position higher than the discharge | release reduction path | route through which the 2nd thing discharge | released from the said 2nd reduction | restoration mechanism passes. The suction part of the dust removal mechanism is arranged at a position facing the receiving net laid along the handling cylinder, and the suction part is equipped with a shield that prevents the inflow of grain leaked from the receiving net. The 2nd reduction | restoration structure of the threshing apparatus of Claim 1 or 2. The 2nd reduction structure of the threshing apparatus as described in any one of Claims 1-3 which has made the said dust removal mechanism interlock | cooperate with the red pepper which raises a selection wind.

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