JP2003259717A - Threshing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively reduce the loss of grains discharged with dust to the exterior of a machine in a threshing apparatus having an opening and closing chaff sieve regulated according to the change of the total weight of an accumulated treating material so as to be opened and closed, and a fixed chaff sieve acting on the treated material from the opening and closing chaff sieve. <P>SOLUTION: The threshing apparatus has partitions 7a and 7b present at a position just before a dust-sending opening of a receiving net 5 of a threshing chamber 1, and at a position facing to the position just before the dust-sending opening of a ceiling plate 6 of a threshing chamber 1. The threshing apparatus also has a selecting structure 17 for receiving a threshed product dropped from the dust-sending opening 4 of the threshing chamber 1 and selecting the received material, and arranged so that the front end is positioned at the upper part of the opening and closing chaff sieve 30 and the rear end is positioned at the upper part of the fixed chaff sieve 15. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swing sorter for sorting threshing products dropped and supplied from a handling room, an opening / closing chief sheave having an adjustable opening, and The opening / closing chaff sheave is located on the back side of the swinging sorter with respect to the opening / closing chaff, and further includes a fixed chaff sheave with a fixed opening. The opening and closing chaff sheave is automatically performed based on the total weight of the processing material deposited on the opening and closing chaff sheave so that the opening degree of the opening and closing chaff sheave decreases as the total weight of the processing material deposited on the opening and closing chaff sheave decreases. The present invention relates to a threshing apparatus provided with a chaff adjusting means for opening and closing. 2. Description of the Related Art When the amount of processed material supplied to a chaff sheave is increased, the grain is more likely to leak from the chaff sheave and the grain is discharged to the outside together with dust when the degree of opening of the chaff sheave is increased. Loss can be easily avoided. When the amount of the processed material supplied to the chaff sheave is reduced, the smaller the opening degree of the chaff sheave, the more difficult it is for straw chips and the like to leak from the chaff sheave and less likely to be mixed with dust. Then, as the amount of the processed material supplied to the chaff sheave increases, the weight of the processed material deposited on the chaff sheave increases. Thereby, the threshing apparatus makes the chaff sheave openable and the opening degree of the opening and closing chaff sheave is automatically adjusted by the chaff adjusting means when the weight of the processing material deposited on the opening and closing chaff sheave changes, and the processing material supplied to the chaff sheave Even if the amount changes, the threshing operation can be performed while avoiding dust mixing into the grain and loss of the grain. In this type of threshing apparatus, when the whole or most of the threshing products discharged from the dust port of the handling room is supplied to the opening / closing chaff, the threshing products discharged from the dust port are cut off. Due to the large amount of dust, the opening and closing chaff sheaves are adjusted to the side where the opening degree is increased due to the dust, and the dust easily mixes into the grains. For this reason, conventionally, for example,
As shown in JP-A-001-238525, a sorting structure for receiving a threshing product dropped from a dust port of a handling room and performing sorting while transporting it to the rear side of an oscillating sorting device is a front end of the sorting structure. The side is located above the opening and closing chaff sheave, and the rear end is located above the fixed chaff sheave and is provided in a swing sorting device, and the threshing material discharged from the dust outlet is sorted and sorted by the sorting structure. Dust such as broken waste is supplied to the fixed chaff sheave, and it is difficult for dust from the dust outlet to enter the opening and closing chaff sheave, and the processed material from the sorting structure is further sorted by the fixed chaff sheave to collect grains. There was something that could be done while making it easier. [0004] In the conventional threshing apparatus described above, there are many cases where grains are mixed in straw chips discharged from the dust outlet, and the grains are mixed with the straw chips. The loss that was discharged outside could not be sufficiently avoided. An object of the present invention is to provide a threshing apparatus capable of effectively preventing the above-mentioned grain loss. [0006] The structure, operation and effect of the invention according to claim 1 are as follows. [Structure] A swing sorting device for sorting threshing products dropped and supplied from a handling chamber is provided with an opening / closing chief sheave having an adjustable opening degree, and a swing sorting device located rearward of the swing sorting device with respect to the opening / closing chaff sheave. Equipped with a fixed chief sheave with a fixed opening, the total weight of the processing material deposited on the opening and closing chaff sheave decreases so that the opening degree of the opening and closing chaff sheave increases as the total weight of the processing material deposited on the opening and closing chaff sheave increases In a threshing apparatus provided with a chaff adjusting means for automatically opening and closing the opening and closing chaff sheave based on the total weight of the processing material deposited on the opening and closing chaff sheave so that the opening degree of the opening and closing chaff sheave decreases as the opening degree of the opening and closing chaff sheave decreases. A sorting structure that receives the threshing material dropped from the dust outlet of the chamber and sorts it while transporting it to the back of the swinging sorting device,
A front end side of the sorting structure is located above the open / close chaff sheave, and a rear end is provided in the swing sorting device in an arrangement located above the fixed chaff sheave, just before the dust outlet of a receiving net of a handling room. A partition plate is provided at a portion located and a portion of the handling room top plate facing the position immediately before the dust outlet, so as to provide resistance to the flow of the threshing processed material in the backward direction of the handling room. [Operation] As the weight of the processing object accumulated on the opening / closing chief is increased, the opening degree of the opening / closing chief is adjusted to the enlarged side by the automatic operation by the chaff adjusting means. Even if the amount of the processed material is large, the grains easily leak from the open / closed chief sheave with an increased opening degree, and are hardly discharged backward from the openable / closed chief sheave together with dust. Further, the thresh-processed product sent to the rear of the handling room receives the flow resistance of the partition plate on both the receiving net side and the top plate side, and stays in the handling room longer than when the flow resistance is not received. As a result, it becomes easier to be unraveled by the handling cylinder, and the grains are separated from the dust, leak from the receiving net, and are hardly discharged from the dust outlet. The threshing product discharged from the dust outlet is subjected to the sorting process by the sorting structure and the fixed chaff sieve, and the grains are easily collected. [Effect] Therefore, not only is it difficult for the grains to be sent back from the opening and closing chaff sheave together with dust due to the automatic opening adjustment of the opening and closing chaff sheave, but also the threshing material is released and processed immediately before the dust outlet of the handling room. The grain is easily collected, and the threshing material discharged from the dust outlet is sorted by the sorting structure and the fixed chaff sieve, so that the grain is easily collected. Grain collection efficiency was improved so that it was not easily discharged outside the machine. As shown in FIG. 1, a handling room 1 is located at an upper part on the front end side in a threshing machine, and is driven around an axis 2a facing forward and backward in the handling room inside the handling room 1. A threshing unit A having a rotatable handling cylinder 2, a drive swingable swing sorting device 10 having a front end located below the handling chamber 1, and a lower portion on the front end side of the swing sorting device 10. And a collecting section C having a first screw conveyor 25 and a second screw conveyor 26 located at the bottom of the sorting section B and arranged in the front-rear direction of the threshing machine. Thus, a threshing device for the combine is constituted. This threshing device is for threshing a harvested culm of rice, wheat, or the like, which has been mowed by a harvesting unit of a combine, to collect grains, and is configured in detail as follows. In the threshing section A, the threshing feed chain 3 pinches and transports the stem side of the harvested grain culm in the rearward direction of the machine body and supplies the spike side to the handling chamber 1. The threshing waste straw is discharged by the threshing feed chain 3 from the dust sending port 4 located at the rear end of the handling room 1, and the thresh-processed material such as kernels leaks from the receiving net 5 of the handling room 1, and straw scraps, etc. Is discharged from the dust outlet 4. The swing sorting apparatus 10 is supported by a threshing machine body at a front end side via a swing link 11 and a rear end side via an eccentric drive mechanism 12, and reciprocates in the front-rear direction of the threshing machine body. Frame 13 driven as follows,
A length L of the receiving net 5 that is located on the front side of the handling room, and corresponds to about ／ of the total length of the receiving network 5 in the front-back direction of the handling room.
The Glen pan 14 which is disposed below the front part 5a (FIG. 4) having the 1 and is attached to the front end side of the sorting frame 13, and the front end is located near the rear end lower part of the Glen pan 14 And has a length L2 corresponding to about 1/3 of the total length of the receiving net 5 in the front-rear direction of the handling room. The opening / closing chief sheave 3 which is disposed below the rear side portion 5b (FIG. 4) so that the front end side is located and is attached to the sorting frame 13.
0, a fixed chief sheave 15 which is arranged near the rear end of the opening / closing chief sheave 30 and is attached to the sorting frame 13 and a front end is located near the rear end of the fixed chief sheave 15. And a straw rack 16 attached to the sorting frame 13
A sorting structure 17 arranged above the 0 and fixed chaff sheaves 15 and attached to the sorting frame 13 and a grain sheave 18 arranged below the opening and closing chaff sheave 30 and attached to the sorting frame 13. It is composed. The fixed chaff sheave 15 is composed of a plurality of fixed chaff flip plates which are fixed to the sorting frame 13 side by side in the front and rear direction of the swing sorting device 10 behind the swing sorting device 30 with respect to the opening and closing chaff sheave 30. The opening of the fall hole is fixed. As shown in FIG. 2 and the like, the sorting structure 1
Reference numeral 7 denotes a Glen pan 17a whose front end is located below the dust outlet 4 and whose rear end is located above the rear end of the open / close chaff sheave 30, and a swing sorting device on the top side of the Glen pan 17a in the lateral direction. A swing sorting device extends rearward from a plurality of locations, and a straw rack 17b whose extending end is located above the fixed chief sheave 15, and a swing sorting device of the Glen pan 17a from a plurality of locations in the transverse direction of the swing sorting device. It extends toward the rear of the apparatus, and is constituted by a sieve wire 17c whose extension end is located above the fixed chaff sheave 15 and which is located one by one between the straw racks 17b. As shown in FIG. 2 and the like, the open / close chaff sheave 30 is composed of a plurality of movable chaff flip plates arranged in the front-rear direction of the swing sorting device 10 between the left and right side frame portions 13a of the sorting frame 13. 31. As shown in FIGS. 5 and 6, upper ends of both ends of each of the plurality of movable chaff flip plates 31 are connected to the movable chaff flip plate 31 so as to be relatively rotatable.
And a single supporting plate 33 supporting the connecting pin 32 of each movable chaflip plate 31 so that the side plate 13a of the sorting frame 13 rotates around the axis 32a of the connecting pin 32. Installed. Support 33 of each connection pin 32
One connecting member 34 is attached to the ends protruding from the movable chaflip plate 31 on the opposite side. An interlocking pin 35 whose one end is rotatably inserted into a pin connecting portion 31a located at the lower end of each movable chaflip plate 31 at both ends of the movable chaflip plate 31, and the interlocking operation of each movable chaflip plate 31 The lower end side of each movable chaff flip plate 31 is interlocked by one interlocking member 36 fixed to the other end side of the pin 35. As shown in FIGS. 5 and 7, one end of one of the movable chaff flip plates 31 is connected to the side edge 13a of the side frame 13a of the side pin 13a of the interlocking pin 35. A chaff adjusting spring 37 made of a coil spring is attached to an end protruding on the outer surface side of the side frame 13a and a spring supporting portion 41a of the adjusting lever 41 supported on the outer surface side of the side frame portion 13a. This chaff adjustment spring 3
Reference numeral 7 designates a connecting pin 3 by aligning the interlocking pin 35 along the slot 13b.
By moving and biasing the movable chaff flip plate 31 toward the ascending side around the second shaft core 32a, all the movable
Is configured to be urged to swing upward about the shaft core 32a. That is, a pair of movable chafflip plates 31 adjacent to each other of the plurality of movable chafflip plates 31 arranged in the front-rear direction of the swinging sorting device 10 are used for leaking the sorted material of the opening / closing chaff sheave 30. A processed object drop hole is formed. When the interlocking pin 35 is moved around the axis 32a of the connecting pin 32 along the elongated hole 13b, all the movable chaflip plates 31 are interlocked and move around the axis 32a of the connecting pin 32. The workpiece drop hole is enlarged by swinging downward, and the workpiece drop hole is reduced by swinging upward. When the total weight of the thresh-processed material deposited on each movable chaflip plate 31 changes, due to this weight change,
Each movable chaff flip plate 31 is lowered and oscillated by lowering the interlocking pin 35 by changing the chaff adjustment spring 37 to the extension side, and each movable chaff lip plate 31 is changed by moving to the shortened side to raise and rock the interlocking pin 35. The chaff flip plate 31 is raised and rocked. Thereby, the chaff adjusting spring 37 senses the total weight of the threshing processed material accumulated on the opening / closing chief sheave 30 and automatically controls the opening / closing of the opening / closing chief sheave 30 based on the total weight of the processed material. That is, the total weight of the threshing products deposited on the opening / closing chaff sheave 30 decreases such that as the total weight of the threshing products deposited on the opening / closing chaff sheave 30 increases, the degree of opening of the processed product drop hole of the opening / closing chaff sheave 30 increases. The opening and closing of the opening and closing of the processing object drop hole of the opening and closing chaff sheave 30 is reduced. As a result, the rocking sorting device 10 sorts the thresh-processed product as follows. That is, the thresh-processed material dropped and supplied from the front portion 5a of the receiving net 5 is
4, the sorting process is performed while being conveyed to the rear side of the swinging sorting device, and the threshing process dropped and supplied from the dust outlet 4 of the handling chamber 1 is received by the sorting structure 17 and conveyed to the rear side of the swinging sorting device. While sorting. Glen Pan 14
From the ground, threshing from the rear part 5b of the receiving net 5, and grain pan 17a of the sorting structure 17
Each of the sorting products dropped and supplied from the rear end is received by the open / close chief sheave 30 and sorted while being conveyed to the rear side of the swing sorting device. At this time, when the total weight of the processed material deposited on the opening and closing chaff sheave 30 increases, the opening degree of the opening and closing chaff sheave 30 is adjusted to the enlargement side for automatic adjustment based on the weight detection by the chaff adjustment spring 37, and the grain is reduced. Sorting while making it easy to leak,
When the total weight of the processing material deposited on the opening / closing chief sheave 30 decreases, the opening degree of the opening / closing chief sheave 30 is adjusted to the reduction side for automatic adjustment based on weight detection by the chaff adjustment spring 37, and dust such as straw chips is removed. Sorting is performed while preventing leakage. Separation processing products from the rear end of the opening and closing chaff sheave 30 and the separation processing materials dropped and supplied from the rear end of the separation structure 17 are sorted and conveyed to the rear side of the rocking separation device by the fixed chaff sheave 15 and the straw rack 16. To process. The sorted material leaked from the opening and closing chaff sheave 30 is sorted by the grain sieve 18. Therefore, the sorting section B is configured to remove the thresh-processed material such as grain that has leaked from the receiving net 5 of the handling room 1 and the thresh-processed product such as straw waste that has fallen from the dust outlet 4 of the handling room 1. By the specific gravity sorting by the swingable sorting device 10 which can be driven and swung, and the wind sorting by the sorting wind supplied to the rear of the fuselage by the Karino 20, the grains are sorted into dust, such as straw chips, and the like. The particles are dropped from the swing sorting device 10 and the dust is discharged out of the machine together with the sorting wind from the discharge port 21 a of the dust exhaust fan 21 or the dust outlet 22 of the threshing machine located behind the swing sorting device 10. The recovery section C removes the first processed material that has leaked from the Glen Sheave 18 of the rocking sorting device 10
The second processed material dropped out of each of the grain sheave 18, the fixed chaff sheave 15, and the straw rack 16 of the rocking sorter 10 is carried out to the lateral outside of the threshing machine by the first screw conveyor 25 located below the front end of the machine. The second screw conveyor 26 located below the rear end side of the swinging sorting device 10, and the second screw conveyor 2
6 is conveyed into the threshing machine by the lifting device 27 connected to the lateral end of the threshing machine at the transport end of the threshing machine, and is returned to the front end side of the swing sorting device 10 so as to be reprocessed. As shown in FIGS. 2, 3 and 4, etc., a partition plate 7a is provided at a portion of the receiving net 5 located immediately before the dust outlet 4.
A partition plate 7b is provided at a position facing the dust outlet on the inner surface side of the handling room top plate 6, and the partition plates 7a and 7b are aligned on the inner surface side of the lower tongue plate 8 in the circumferential direction of the handling room. A partition plate 7c is provided so as to be arranged in a line, and a partition plate 9a is provided between the front side portion 5a and the rear side portion 5b of the receiving net 5; A partition plate 9b is provided at a portion located in the middle of the above. The partition plate 9b located at the front part 5a of the receiving net 5 and the partition plate 9a located between the front part 5a and the rear part 5b of the receiving net 5 project from the inside of the handling room toward the handling room. The threshing material flowing in the front part 5a of the receiving net 5 in the rearward direction of the handling room is provided with resistance so that the threshing material stays in the handling room 1 to be easily processed by the handling cylinder 2, From the front side portion 5a of the receiving net 5 to the Glen pan 14 easily. Each of the partitioning plates 7a to 7c attached to the rear portion 5b of the receiving net 5, the handling room top plate 6, and the lower tongue plate 8 is formed on the inner surface of the receiving net 5, the handling room top plate 6, and the lower tongue plate 8. Of the threshing material flowing in the rear side 5b of the receiving net 5 in the rearward direction of the handling room, so that the threshing material stays in the handling room 1 and is handled by the handling cylinder 2. This facilitates the treatment and makes it easier for the grains to leak from the rear portion 5b of the receiving net 5. As shown in FIG. 2, FIG. 4, etc., the front side portion 5a of the receiving net 5 has through-holes as processing object drop holes 5c which are opened side by side in the front-rear direction and the circumferential direction of the handling chamber 1. The rear part 5b of the receiving net 5 is made of a synthetic resin plate formed by molding an ultra-high molecular synthetic resin material on a perforated plate.
The through hole as the processed object dropping hole 5d is made of a sheet metal formed by pressing a perforated plate that is opened in a direction along the front-rear direction and the circumferential direction of the handling chamber 1. The size of the workpiece drop hole 5c provided in the front portion 5a of the receiving net 5 is smaller than the size of the workpiece drop hole 5d provided in the rear portion 5b. Thereby, the receiving network front side portion 5 of the handling room 1
In the front part provided with a, even if the cereal stalk is wet, it is difficult to adhere to the receiving net front part 5a because it is made of resin.
The grain is threshed while dropping the grain onto the grain pan 14 with as uniform a distribution as possible for the small processed material drop hole 5c in the front part 5a of the receiving net. In the rear part of the handling room 1 having the above-mentioned net receiving rear part 5b, the large grain drop hole 5d of the net receiving rear part 5b makes it easy for the grains to leak out, while the grain is easy to fall. Threshing is performed while the required strength is exhibited by the sheet metal of the rear portion 5b of the net. The height of the two partition plates 9a and 9b provided in the front part 5a of the receiving net 5 protruding from the inner surface of the receiving net of the one of the two partition plates 9a and 9b toward the handling room. H1 is set higher than the height H2 protruding from the inner surface of the receiving plate of the partition plate 9b located on the front side toward the handling room. As shown in FIG. 5 and FIG.
The base end of the adjustment lever 41 having the through hole 41b into which the end of the fifth 5 is inserted is rotatably connected to the outer surface of the side wall 13a of the sorting frame 13 via a connection pin 42. . The through hole 4 into which the end of the interlocking pin 35 enters.
The base end side of the second adjustment lever 43 having 3a is also rotatably connected to the outer surface of the side wall 13a via the connection pin 42. Both adjusting levers 41 and 43 are connected to a connecting pin 42.
The swinging operation can be individually performed around the axis of. That is, the adjusting lever 41 is moved to the side wall 13a.
The operating portion 41c is elastically deformed to the side away from the side wall portion 13a with the portion connected to the side as a swing fulcrum, thereby pulling out the operating portion 41c from the positioning projection 44 fixed to the outer surface side of the side wall portion 13a. The adjustment lever 41 is swingably adjusted around the axis of the connection pin 42, and the operation portion 41c of the operation lever 41 at the adjustment target position is engaged with one of the plurality of positioning projections 44 by the positioning holes. Then, the operation lever 41 is locked at the adjustment target position, and the second adjustment lever 43 is swing-adjusted around the axis of the connecting pin 42 while being pulled out of the positioning projection 44 similarly to the adjustment lever 41, and adjusted. When the target position is reached, the operation portion 43b is engaged with one positioning protrusion 44 by the positioning hole to lock the second adjustment lever 43 at the adjustment target position. Thus, the stopper action or pushing action of the stopper part located at both ends of the through hole 41b of the adjustment lever 41, the stopper action of the stopper part located at both ends of the through hole 43a of the second adjustment lever 43, or the like is achieved. By setting the swing limit position of the interlocking pin 35 by the pushing action, or by pushing the interlocking pin 35 against the chaff adjusting spring 37, the movable chaff flip plate 3
Adjust the limit position on the ascending and closing side and descending and opening side of 1,
It is possible to adjust the angle range in which the movable chaff flip plate 31 is swingably adjusted by the chaff adjustment spring 37, or to adjust the spring force of the chaff adjustment spring 37. As shown in FIG. 5 and the like, a counter having one end side engaged with the interlocking pin 35 through a through hole, an intermediate part connected to the connection pin 42 so as to be relatively rotatable, and a weight 45 provided at the other end side. The member 46 suppresses the opening and closing of the opening and closing chaff sheave 30 due to the swing of the swing sorting device 10. [Another Embodiment] As in the above-described embodiment, the movable chaff flip plate 31
Actuator for opening and closing the actuator, measuring means for measuring the total weight of the processing object deposited on the opening and closing chaff sheave using a strain gauge, and control for operating the actuator based on the measurement result by the measuring means By adopting the means, the opening degree of the opening and closing chaff sheave may be automatically adjusted based on the total weight of the processed material deposited on the opening and closing chaff sheave. Therefore, these chaff adjusting springs 37 and control means are collectively referred to as chuff adjusting means 37.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional side view of the whole threshing device for a combine. FIG. 2 is a cross-sectional view of a portion where a sorting structure and an opening / closing chief sheave are provided. FIG. FIG. 4 is a perspective view of the entire receiving net. FIG. 5 is a plan view of an opening / closing chief sheave opening adjusting portion. FIG. 6 is a cross-sectional view of a chaff flip plate attaching portion. [Description of Signs] 1 Handling room 4 Dust port 5 Receiving net 6 Handling room top plate 10 Swing sorting device 15 Fixed chaff sheave 17 Sorting structure 30 Opening and closing chaff sheave 37 Chaff adjusting means

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Takafumi Mitsui             64 Ishizukita-cho, Sakai-shi, Osaka Kubo Co., Ltd.             Inside the Ta Sakai Factory (72) Inventor Yoshihiro Inoue             64 Ishizukita-cho, Sakai-shi, Osaka Kubo Co., Ltd.             Inside the Ta Sakai Factory F-term (reference) 2B092 AA01 AB04 BA15 BA16 BB01                       BB03                 2B094 AA07 AA08 AA11 AH01 AJ01                       AJ12 AJ13 EA05 HA04 HA07                       HC01 HC07 HC12 HC14 HD05                       HD09                 2B095 AA01 AA07 AA12 BA03 BA11                       BA21 BA25 BA30 BA35 BB12                       BB27 BB29 BB48 CA02 CA04                       EA02 EB19 GA02

Claims (1)

Claims: 1. A swing sorting device for sorting and processing threshing products dropped and supplied from a handling chamber, an opening / closing chaff sheave having an adjustable opening degree, and a swing sorting device rearward from the opening / closing chaff sheave. The processing object deposited on the opening and closing chaff sheave so that the opening degree of the opening and closing chaff sheave is increased as the total weight of the processing object deposited on the opening and closing chaff sheave is located at the side and has a fixed opening degree. The opening and closing of the opening and closing chaff sheave is reduced so that the opening degree of the opening and closing chaff sheave decreases as the total weight of the opening and closing chief sheave decreases. A threshing device, which is a sorting structure that receives a threshing material dropped from a dust port of a handling room and performs a sorting process while conveying the threshing material to a rear side of a swinging sorting device. The front end side of the separate structure is located above the opening / closing chief sheave, and the rear end is located above the fixed chaff sheave in the swing sorting device, and is located immediately before the dust outlet of the receiving net of the handling room. To do, and
A threshing device comprising a partitioning plate provided at a portion of the handling room top plate opposite to the position just before the dust outlet, to provide resistance to the flow of the threshing processed material backward in the handling room.