JP2003070336A - Separator of threshing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the lowering of a threshing capacity and the deterioration of a separating performance on a harvesting work in high efficiency and on a work for harvesting wet grain straws. SOLUTION: An opening 4b is disposed on the dust-discharging chamber 26 side of a rear closing plate 4a forming a housing 7 constituting a thresher, and a plurality of straw racks 8d on the dust-discharging chamber 26 side among straw racks 8d disposed in an area ranged from the opening 4b to the transfer final end of a shaping separator 5 are protruded. The transfer inclination angles of the straw racks 8d are alternately disposed at a prescribed steep angle and at a prescribed slow angle. The height positions of the transfer end portions of the straw racks 8d are sequentially lowered from the dust-discharging chamber 26 to a suction fan 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear closing plate forming a box forming a thresher, which is provided with an opening on the side of the dust treatment chamber, and from this opening, a transfer terminal end of a rocking and sorting apparatus. This is a technique in which a plurality of Straw racks on the dust treatment chamber side out of the plurality of Straw racks provided in are provided so as to project, and can be used as a swing sorting device of a thresher.

[0002]

2. Description of the Prior Art Harvesting of napped culms with a combine equipped with a thresher is carried out by a reaper provided at the front part of the traveling chassis of the combine to rip the culms, and the harvested culms are
Transferred to the upper rear part by this reaper and taken over by the feed chain of the thresher placed on the upper side of the traveling chassis and the sandwiching rod,
The threshing that has been threshed while being sandwiched and transferred in the threshing chamber 23 of the threshing machine, and the threshing that has leaked from this threshing chamber 23 and the dust that has been supplied from the threshing chamber 23 to the dust processing chamber are this dust treatment. The re-threshing dust that has been threshed in the room and leaked is supplied to the rocking sorting device, is rocking sorted by this rocking sorting device, and is wind-sorted by the air blower of the blower, and has been sorted The grains are pumped and supplied into the grain storage tank and temporarily stored.

Further, the second article leaking from between the stroll racks provided at the front and rear of the transfer end portion of the swing sorting device is
It flows down on the back plate and is supplied into the second gutter, which is then taken up and taken up by the second reduction device, returned to the second treatment chamber, re-threshed, and re-threshed. Is supplied to an oscillating sorting device, and is simultaneously oscillated and sorted by the oscillating sorting device at the same time as the threshing from the threshing chamber 23 and the re-threshing dust from the dust processing chamber, and the air blown by the blower. By wind,
The sorted grains are pumped and fed into the grain storage tank,
It is temporarily stored.

The dusts supplied from the threshing chamber 23 into the dust treatment chamber are re-threshed in the dust treatment chamber, and the re-threshold dusts leak from the dust treatment chamber, It is supplied to a swing sorting device and swing sorted. In addition, some grains that did not leak through re-threshing dust, straw debris, and cuttings,
It is supplied from the dust discharge port of the dust treatment chamber onto each stroll rack provided in the front-rear direction of the transfer end portion of the swing sorting device,
Swing selected. Swing-sorted straws, cuttings, and dust that has been wind-sorted by the blower are sucked by a suction fan provided on the upper side of each Straw rack of the swing sorting device on the side opposite to the dust discharge port. And discharged outside the machine.

[0005]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention Some grains that have been threshed in the dust treatment chamber and have not leaked from the dust treatment chamber of the resharbed dust, and the straw dust and culms that have not leaked Cuts, etc. are supplied from the dust discharge port of the dust processing chamber to the swing sorting device, swing sorted, and the swing sorted straw chips, cuttings, etc. are sucked by a suction fan, and then outside the machine. It is discharged, but during high-efficiency harvesting work, wet grain culm harvesting work, etc., a large amount of straw debris and cuttings, and wet straw debris and cuttings, etc. , When it is not sucked by the suction fan, it leaks from between the Straw racks of the swing sorting device and is treated as a second reduction product, so that straw waste, cuttings, etc.
The threshing machine sequentially increases in number, and the threshing treatment capacity may decrease or the selection performance may decrease. However, the present invention intends to solve these problems.

[0006]

To this end, according to the present invention, the left and right machine wall plates 3 are provided.
a, 3b, front machine wall plate 3c, and detachable rear closing plate 4a, in a box body 7 formed in a box shape, a threshing chamber 23 for threshing a culm, and a side of the threshing chamber 23. A dust processing chamber 26 for processing the dust on the side, and a plurality of stroll racks 8 in the front-rear direction at the transfer end portion for swinging and sorting while receiving and removing grain.
On the opposite side of the swing sorting device 5 provided with d and the dust discharge port 25b that discharges the dust that has been processed in the dust treatment chamber 26, suction that sucks and discharges straw dust and shavings to the outside of the machine In threshing provided with the fan 6 and the like, an opening 4b is provided on the dust removal processing chamber 26 side of the rear closing plate 4a, and the dust removal processing chamber 2 is provided through the opening 4b.
This is a thresher sorter characterized in that a plurality of Straw racks 8d of the swing sorter 5 on the 6 side are provided so as to project.

In the harvesting work of the raised culm culms with the combine equipped with the thresher, the culm culms are mowed by the reaper provided in the front part of the traveling chassis of the combine, and the cultivated grain culms are cut with the reaper. The threshing that was transferred to the upper rear part and taken over by the feed chain of the thresher placed on the upper side of the traveling chassis and the sandwiching rod and threshed during the sandwiching and transporting in the threshing chamber 23 of the thresher, and the threshing leaked from this threshing chamber 23 The removed threshing and the dust discharged from the threshing chamber 23 to the dust treatment chamber 26 are
The re-threshing dust that has been threshed and leaked in 6 is supplied to the swing sorting device 5, swing-sorted by this swing sorting device 5, and is wind-sorted by the air blower of the blower. The selected grains are pumped and supplied into the grain storage tank and temporarily stored.

Further, at the transfer end portion of the swing selecting device 5,
The second object leaked from between the stroll racks 8d provided in the front-rear direction flows down on the rear closing plate 4a, is taken over from the second trough by the second reduction device, and is then transferred into the second processing chamber. After being reduced and re-threshed, the re-threshed grain is supplied to the rocking / sorting device 5, and in this rocking / sorting device 5, the threshing from the threshing chamber 23,
At the same time as the re-threshing dust from the dust treatment chamber 26, the swing sorting is performed, and the air is blown by the blower to sort the wind.
The sorted grains are pumped and fed into the grain storage tank,
It is temporarily stored.

[0009] The dust discharged from the threshing chamber 23 into the dust treatment chamber 26 is re-threshed in the dust treatment chamber 26, and the re-threshed dust is discharged from the dust treatment chamber 26. It leaks and is supplied to the swing sorting device 5, where it is swing sorted.
In addition, a part of the grains that have not leaked out of the re-threshing dust, the straw debris, the culm, etc., are discharged through the dust discharge port 25b of the dust treatment chamber 26
Is supplied from above to a plurality of stroll racks 8d provided in the front-rear direction of the transfer end portion of the rocking / sorting device 5, and is rocked / sorted. A part of the straw scraps that have been subjected to the swing selection and the cut-offs are formed by a plurality of long stroll racks 8d provided so as to project from the opening 4b provided on the dust blocking chamber 26 side of the rear closing plate 4a. Then, it is transferred to the transfer end portion on each of the straw racks 8d, and discharged from the machine through the opening 4b. Further, a part of the dust that has been wind-selected by the blower at a position located in the opening 4b is discharged to the outside of the machine through the opening 4b.

In addition, at a portion other than the opening 4b of the rear closing plate 4a, a part of the other straw chips which have been swing-sorted and are being transferred to the transfer end portion by a plurality of short straw racks 8d, and culm. Off
The dust whose wind has been sorted by the blower is sucked by the suction fan 6 provided at the upper part of each Straw rack 8d of the swing sorting device 5 on the side opposite to the dust discharge outlet 25a of the dust processing chamber 26. , Discharged outside the machine.

According to the second aspect of the present invention, the transfer inclination angles of the plurality of strollers 8d of the swing selecting device 5 are alternately set to a predetermined steep inclination angle α1 and a predetermined gentle inclination angle α2. 2. It is provided by changing it.
It is a sorting device of the thresher described in.

A part of the re-threshing dust discharged from the dust discharge port 25b of the dust treatment chamber 26, which has not leaked, a part of straw, a dust, etc. At the transfer end portion of 5, the transfer inclination angle is alternately changed to a predetermined steep inclination angle α1,
The straw rack 8d is provided on the slanted predetermined angle α2 and is slanted.
Swing and sorting are performed on the d during swing transfer, the grains fall from between the straw racks 8d, and the straw debris and the cuttings are sucked by the suction fan 6 during the transfer to the transfer end portion. Then, it is discharged to the outside of the machine and discharged from the opening from which the rear closing plate 4a is removed.

According to the third aspect of the present invention, the height positions of the transfer start ends a of the plurality of stroll racks 8d of the rocking / sorting device 5 are substantially the same, and the transfer end b is The threshing machine sorting device according to claim 1, wherein the height position is sequentially lowered from the dust treatment chamber 26 side toward the suction fan 6 side.

A part of the re-threshed dust discharged from the dust discharge port 25b of the dust treatment chamber 26, which has not leaked, and straw dust, cuttings, etc., are oscillated and sorted by the swinging / sorting device 5. At the transfer end of
The height positions of the transfer start end portions a of the plurality of stroll racks 8d are substantially the same, and the height position of the transfer end portion b is from the dust processing chamber 26 side to the suction fan 6 side. Are sequentially lowered to be provided on the respective Straw racks 8d and swing-sorted on the respective Straw racks 8d during swing transfer, and the grains fall from between the Straw racks 8d,
During the transfer of straw scraps and cuttings to the transfer end, the suction fan 6
Is sucked in and discharged outside the machine.

[0015]

According to the invention described in claim 1, each stroll rack provided at the transfer end portion of the rocking / sorting device 5 through the opening 4b provided at the dust removal chamber 26 side of the rear closing plate 4a. The plurality of Straw racks 8d located in the opening 4b of 8d are elongated and provided so as to project from the opening 4b, so that straw dust on the dust discharge port 25b side of the dust processing chamber 26, and The cuttings etc. are surely discharged to the outside of the machine promptly, so that there is no increase in straw scraps and cuttings etc. into the threshing machine, the threshing efficiency can be prevented from lowering, and the sorting performance can be reduced. Can be prevented. Further, it is possible to prevent clogging of straw chips and the like due to catching and the like.

According to the second aspect of the present invention, each of the stroll racks 8 provided at the transfer end portion of the rocking / sorting device 5 is arranged.
d is a predetermined inclination angle α1 for a steep inclination and a predetermined inclination angle α2 for a gentle inclination.
By providing the straw racks 8d in both directions, by feeding in the suction direction by the both straw racks 8d, the suction wind and the swinging action improve the separation of the grains and the straw scraps, and The third scattering can be reduced. Also, the straw waste floats up due to the steep slopes of the Straw racks 8d, and
It is reliably discharged out of the machine. Further, the suction fan 6 is surely sucked and discharged to the outside of the machine.

According to the third aspect of the present invention, each stroll rack 8 provided at the transfer end portion of the rocking / sorting device 5 is arranged.
d is the suction fan 6 at the transfer end from the dust treatment chamber 26 side.
Since some grains fed onto the respective straw racks 8 fall well between the respective straw racks 8d due to the downwardly sloping downwardly sloping, the third scattering of the grains is prevented. Can be reduced. Also, suction fan 6
Since each straw rack 8d is inclined downward, the straw waste moves toward the suction fan 6 side,
The suction fan 6 surely sucks and discharges to the outside of the machine.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. The thresher 3 placed on the upper side of the traveling chassis 2 of the combine 1 receives the threshing that has been threshed in the threshing chamber 23 and swings and sorts the grains into straw, straw dust, and cuttings. A dynamic sorting device 5 is provided, and the oscillating sorted straw waste,
In addition, the suction fan 6 for sucking the cutoffs and discharging the cutouts is provided. Further, the rear closing plate 4a forming the box 7 of the threshing machine 3 is provided with an opening 4b, and the opening 4b is provided on the side of the dust processing chamber 26 for re-thresholding the dust, and the opening 4b is provided. A plurality of straw racks 8d out of a plurality of stroll racks 8d provided at the transfer end portion of the swing selecting device 5 are provided so as to project. The swing sorting device 5, the rear closing plate 4a, and the like will be mainly illustrated and described.

A traveling device 10 having a pair of left and right traveling crawlers 10a traveling on a soil surface is provided below the traveling chassis 2 of the combine 1 and above the traveling chassis 2 as shown in FIG. Is a configuration in which the thresher 3 is placed. The mowing machine 11 on the front side of the traveling chassis 2 cuts the napped culms, which are transferred to the upper rear part by the reaper 11, and the feed chain 12a of the threshing machine 3 and the holding rod 12b.
It is handed over and threshed while being nipped and transferred. The grains that have been threshed and have been sorted are temporarily stored in a grain storage tank 13 arranged on the right side of the threshing machine 3.

On the front side of the traveling chassis 2, as shown in FIG. 12, a narrow guide 14 for separating the napped culm from the front end position.
a, a sward body 14b, and a raising device 1 for raising a napped culm
5a, a scraping device 16a of the crop stalk scraping transfer device 16 for scraping the raised crop culm, a cutting blade device 15b for mowing the scraped crop culm, and a sandwiched transfer of the crop grain stalk And the root and tip transfer device 17 of the transfer device 16 for transferring the grain culm to and from the feed chain 12a of the threshing machine 3 and the holding rod 12b.
A reaper 11 including a and 17b is provided. The reaper 11 is configured to move up and down with respect to the soil surface by a telescopic cylinder 18 which is hydraulically driven.

A support pipe rod 19b extending in the left-right direction is provided on the upper end of a support rod 19a inclined from the lower front portion to the upper rear portion of the reaper 11, and the support pipe rod 19b is provided on the upper surface of the traveling chassis 2. The reaper 11 is rotatably supported by a support device 19c, and the reaper 11 is configured to rotate up and down with the support pipe rod 19b as the center of rotation by the operation of the telescopic cylinder 18.

On the front part of the thresher 3 side, as shown in FIG. 12, an operating device 20a for starting and stopping the combine 1 and adjusting each part, and an operator carrying out these operations are boarded. A cockpit 20b is provided, and an engine 21 is mounted on the upper side of the traveling chassis 2 below the cockpit 20b, and a grain storage tank 13 is arranged at the rear part. These traveling device 10, reaper 11, and thresher 3
And a body 1a of the combine 1 is formed by the engine 21 and the like.

In the grain culm transfer path formed by the grain stalk scraping transfer device 16 of the reaper 11, the grain culm transferred by being cut is brought into contact with the grain stalks to be supplied to the thresher 3. This is a configuration provided with a grain culm sensor 11a for detecting the presence or absence of In the transmission path of the transmission mechanism in the traveling mission case 22 mounted on the front end of the traveling chassis 2,
A potentiometer type vehicle speed sensor 22a for detecting the traveling vehicle speed based on the output rotation is provided.

As shown in FIGS. 1 to 11, the threshing machine 3 includes left and right machine wall plates 3a and 3b, a front machine wall plate 3c, and a rear cover plate 4.
With a, various components are internally configured in the box body 7 formed in a box shape. With the feed chain 12a provided on the upper part of the left machine wall plate 3a of the threshing machine 3 and the gripping rod 12b, the slaughtered grain culms inherited from the reaper 11 are sandwiched in the threshing chamber 23 in the upper part of the box body 7. During the transfer, this threshing chamber 23
This is a configuration in which a handling cylinder 24 in which many types of handling teeth 24a are planted for threshing inside is rotatably supported. This handling cylinder 24
On the lower side of the outer circumference of the handle tooth 24a, a threshing chamber net 23a through which threshing leaks is stretched. The transfer end portion of the threshing chamber 23 is provided with a threshing discharge port 25a for supplying the unthreshed dust into the dust treatment chamber 26 described later.

A dust processing chamber 26 is provided at the rear side of the threshing chamber 23 on the side of the side to receive the dust, and the threshing process is performed again. In the dust processing chamber 26, a dust spiral plate is provided. 27
a, a dust removal claw 27b, and a dust discharge claw 27c are rotatably supported by a dust barrel 27 fixed to the outer peripheral portion. On the lower side of the outer circumference of rotation of the dust discharge spiral plate 27a of the dust discharge cylinder 27, a leaking tool 26 through which threshing dust is leaked.
This is a configuration in which a is stretched. At the transfer end of the dust processing chamber 26, a dust discharge port 25b is provided for discharging a part of the grains that did not leak out of the threshing dust, straw dust, and cuttings. Is.

A second processing chamber 34 is provided on the front side of the dust processing chamber 26 for receiving a second product and threshing again. In the second processing chamber 37, a second processing claw 35a and a second processing claw 35a are provided. The second discharge claw 35b is configured such that the second cylinder 35 fixed to the outer peripheral portion is rotatably supported coaxially with the dust cylinder 27. A second processing net 34b through which the second threshing second material leaks is stretched below the outer circumference of the second processing claw 35a of the second barrel 35. The transfer end portion of the second processing chamber 34 is provided with a second discharge port 34a for discharging the second threshing material.

A sorting chamber 28 is provided below the threshing chamber 23. Inside the sorting chamber 28, the threshing chamber net 23a and the threshing grains leaking from the leaking tool 26a and the re-threshing dusts. And some grains discharged from the dust discharge outlet 25b of the re-threshed waste that did not leak, the straw waste, and the cutting, and the second discharge outlet 3
In response to the supply of the second threshing second product discharged from 4a, a swing sorting device 5 for swing sorting is provided in a suspended state for swing sorting on the grain, the straw waste, and the culm. It is a composition.

The rocking / sorting device 5 has a plurality of transfer shelves 8a, a plurality of front chaff sheaves 8b on the front side, and a plurality of front chaff sheaves on the front side. A plurality of rear chaff sheaves 8c, and a plurality of straw racks 8d provided at predetermined intervals in the front-rear direction and the left-right direction,
The swing selection shelf 9a and the net-shaped chaff sheave 9b are provided below the front and rear chaff sheaves 8b and 8c.

Each of the front and rear chaff sheaves 8b and 8c is rotatably supported by a support shaft 29, and each of the front chaf sheaves 8b is opened and closed by a front opening / closing lever 9a, and each of the rear chaff sheaves 8c is a rear opening / closing lever. It is configured to be opened and closed by 29b, and the leakage amount of the supplied grain loss and the like can be adjusted by opening and closing the front and rear chaff sheaves 8b and 8c.

When the suction type thresher 3 is to be used, the rocking / sorting shelf 9a at the rear portion of the rocking / sorting device 5 is removed,
This is a configuration in which each straw rack 8d is mounted and the rear closing plate 3d is mounted. Further, when the open type threshing machine 3 is used, the swing sorting shelves 9a are fixed to the left and right auxiliary side plates 9c and 9d at the rear of the swing sorting device 5 to form a U-shape, and the stroll racks 8d are attached. It is configured such that it is mounted and integrally formed, this integrally formed member is mounted, and the rear closing plate 3d is removed. This is a configuration in which one type of threshing machine 3 can produce both two types of suction type threshing machines 3 and open type threshing machines 3.

In the case of the suction type thresher 3, as shown in FIGS. 1 and 2, an opening 4b of a predetermined size is provided at the dust discharge port 25b side of the dust treatment chamber 26 of the rear closing plate 4a. The plurality of stroll racks 8d on the right side provided from the opening 4b to the rear end of the swing selecting device 5 are provided with a predetermined length longer than the other stroll racks 8d. This elongated Straw rack 8d is attached to the rear closing plate 4.
The structure is provided so as to protrude from the opening 4b of a.

As a result, a large amount of straw dust, dust, etc., discharged from the dust discharge port 25b of the dust treatment chamber 26, the long stroll racks 8d on the dust discharge port 25b side of the swing sorting device 5 are removed. A large amount is supplied upward, but these straw debris, cuttings, etc. are oscillatedly transferred on the long stroll racks 8d, and are reliably discharged from the machine through the opening 4b of the rear closing plate 4a. , Straws, cuttings, etc. are reduced to the second processing chamber 34 of the threshing machine 3 as second products, and the straws, cuttings, etc. increase sequentially into the threshing machine 3. , And for this reason, a reduction in threshing efficiency can be prevented,
Further, it is possible to prevent the deterioration of the sorting performance. Furthermore, the clogging of the straw chips and the like is eliminated, and the clogging of the straw chips and the like can be prevented.

In the case of the open type thresher 3, as shown in FIGS. 3 and 4, a plurality of Straw racks 8d provided at the transfer end of the swing sorting device 5 are alternately inclined at transfer angles. This is a configuration in which a predetermined angle α1 with a steep slope and a predetermined angle α2 with a gentle slope are provided differently.

As a result, each of the two straw racks 8d sends air in the suction direction to generate suction air,
Due to the rocking action, the grains are separated from the straw debris and the cuttings well, and the third scattering of the grains can be reduced. Straws and culms are floated up by the steeply inclined Straw racks 8d, so that the Straw racks 8
It is surely discharged from the tip of d to the outside of the machine, and because it floats up, it is surely sucked also to the suction fan 6,
It is discharged to the outside of the machine.

In the case of the suction type thresher 3, as shown in FIGS. 5 and 6, the height position of the transfer start end portion a of each of the stroll racks 8d provided at the transfer end portion of the swing sorting device 5 is as follows. The suction end of the suction fan 6 from the dust discharge port 25b side of the dust treatment chamber 26 is located at the height position of the transfer end portion B which is at the substantially same height position and is inclined upward to the transfer end portion.
The configuration is such that it is gradually lowered toward the side. In addition, each Straw rack 8d inclined downward to the suction fan 6 side is
The structure is integrally formed of a resin material or the like, and the structure facilitates processing.

As a result, the height of the transfer end portion (front end portion) of each of the stroll racks 8d of the rocking / sorting device 5 is gradually lowered toward the suction fan 6 side. Dust discharge port 25b on the Straw rack 8d
Some of the grains in the re-threshing dust supplied from the above can fall well between the Straw racks 8d, and the third scattering of the grains can be reduced. In addition, since it is inclined downward toward the suction fan 6 side, straw chips, cuttings, etc. are surely sucked by the suction fan 6 by moving to the suction fan 6 side, and are removed from the machine. To prevent clogging. Further, by forming it with a resin material or the like, processing is easy and cost can be reduced.

At the lower front part of the rocking / sorting device 5, there is provided a blower 30 in which a blower blade 30a is rotatably installed, and a blower generated from the blower blade 30a of the blower 30 is blown to produce a grain. It is a configuration in which the wind is sorted into, for example, straw waste, and culm. On the rear side of the blower 30, the innermost first gutter 31 is provided by rotatably supporting the first spiral 31a, and the upper end portion of the front side of the first gutter 31 is connected to the blower 30. It is a configuration. Also, at the rear upper end, the first sorting shelf 31b
Is provided by connecting.

The sorted grains which are subjected to the swing sorting by the swing sorting device 5 and the wind sorting by the blower 30 and which are most flowed down the sorting shelves 31b and fed into the most gutter 31 are this one. It is transferred to the transfer end part on the right side by the first spiral 31a in the guard trough 31, and is continuously taken up and lifted by the first lifting spiral 32c installed inside the first lifting cylinder 32a and the first discharging cylinder 32b. Then, the grains are supplied into the grain storage tank 13 and temporarily stored.

The second spiral 3 is provided on the rear side of the first gutter 31.
The second gutter 33 having the interior 3a is provided, and the second gutter 33 is provided.
The upper end of the front side is overlapped with the lower side of the upper part of the sorting shelf 31b, and the upper end of the rear side is overlapped with the lower side of the lower part of the swing sorting shelf 9a of the swing sorting device 5. Is.
When the suction type threshing machine 3 is used, the rocking / sorting shelves 9a of the rocking / sorting device 5 are removed into the second gutter 33 from between the stroll racks 8d of the rocking / sorting device 5. The falling second object is supplied by flowing down on the rear closing plate 4a. Further, in the case of the open type thresher 3, the second object falling between the stroll racks 8d of the rocking / sorting apparatus 5 flows down on the rocking / sorting shelf 9a of the rocking / sorting apparatus 5 and is supplied. . The second one supplied down into the second gutter 33 is
It is transferred to the transfer end portion on the right side by the second spiral 33a, and is returned to the second processing chamber 34 by the second reduction spiral 36c installed in the second reduction cylinder 36a and the second ejection cylinder 36b. ,
The threshing process is performed in the second process chamber 34.

As shown in FIGS. 1 and 2, the rear cover plate 4a is provided between the upper end portion on the rear side of the second gutter 33 and the rear side portion of the suction casing 6a of the suction fan 6 on the left and right sides. Machine wall plate 3
Between a and 3b, a bolt and a nut are provided so as to be detachable. The rear closing plate 4a is attached when the suction type thresher 3 is used. Further, when the open type threshing machine 3 is used, it is configured to be removed.

Above the respective stroll racks 8d at the transfer end of the rocking / sorting device 5, on the opposite side of the dust discharge port 25b of the dust treatment chamber 26 and on the outer surface of the left machine wall plate 3a, Figure 8
The straw blades 8d of the swing sorting device 5 as shown in FIG. 2 suck the straw dust and the cuttings that have been finally swing sorted, and the suction blades 6b are rotatably inserted into the fan casing 6a that is discharged to the outside of the machine. This is a configuration in which a suction fan 6 that axially supports is provided.

When the suction type thresher 3 is used, the oscillating and sorted straw debris, the cuttings, etc. are sucked by the suction fan 6 and discharged to the outside of the machine, through the opening 4b of the rear closing plate 4a. This is a configuration that is performed both at the time of discharging to the outside of the machine. Further, in the case of the open type thresher 3, the swing-sorted straw debris, cuttings, etc. are discharged to the outside of the machine from the open portion 4c in the open state by removing the rear closing plate 4a. is there.

The grains stored in the grain storage tank 13 are discharged to the outside of the machine. On the rear side of the grain storage tank 13, a discharge support cylinder 37 having a vertical transfer spiral 37a installed therein is provided so as to be rotatable in a substantially vertical posture.
At the upper end of the combiner, a discharge screw 38a that expands and contracts the discharge spiral 38a for discharging the grains to the outside of the combine 1 over the entire length of the combine 1 is expandable and contractible, and the discharge 38 can be rotated vertically and horizontally. It is arranged in the front-back direction.

Second processing net 34b of the second processing chamber 34
Is the second processing chamber 34 as shown in FIGS. 13 and 14.
The second material is returned to the second threshing second material, which is stretched so as to allow the second threshing material to leak, and from the second reduction side of the transfer start end of the second processing net 34b to the substantially intermediate position in the front-rear direction. And tighten it, and from the approximately middle position to the transfer end,
The mesh is enlarged and stretched.

As a result, as the second product, the grains attached with branch stems or the grains having many keys or grains are treated as the second product in the second processing chamber 34.
By being returned to, the second processing net 34 on the second reducing side
By reducing the mesh size of b, reducing leakage, and performing threshing treatment, it is possible to improve the sorting performance and improve the sagging of the second product. In addition, by increasing the mesh size on the transfer terminal end side, the transfer rack of the rocking / sorting device 5 can be processed on the transfer terminal end side having a large mesh size without much processing of the processed substances having many single particles that leak. It can be leaked onto the upper part of 8a, and therefore, it is possible to prevent the generation of deflated granules.

The rear end portions of the left and right auxiliary side plates 9c and 9d on which the swing sorting shelves 9a of the swing sorting device 5 are mounted are shown in FIG.
~ A vertically adjustable U-shaped adjustment plate 9e as shown in FIG.
Is provided. The overall width L2 of the adjusting plate 9e is set to be a predetermined width smaller than the overall width L1 between the left and right machine wall plates 3a and 3b forming the box 7 of the threshing machine 3. left·
A seal 5a is provided on the right machine wall plates 3a and 3b, and the seal 5a is provided so as to hang down above the swing selecting device 5.

As a result, the grains on the left and right auxiliary plates 9c and 9d provided on both sides of the sorting / transferring shelves 9a of the rocking / sorting device 5 are transferred as they are to become third scattered grains. However, by providing the adjusting plate 9e, it is possible to prevent this third scattered grain.

As shown in FIGS. 18 and 19, the rear closing plate 4a has a structure in which an opening / closing cover 39a is provided outside the opening 4b provided in the rear closing plate 4a so as to be opened and closed by a support shaft 39b. is there. At this time, the Straw rack 8d of the swing selecting device 5 is configured not to project from the opening 4b of the rear closing plate 4a.

As a result, when harvesting with the suction type thresher 3, the grain culms to be harvested are, for example, in a wet state, and when the grain culm conditions are bad and the suction fan 6 is clogged. , Open and close the cover 39a,
The largest amount of straw debris, cuttings, and the like were discharged from the dust discharge outlet 25b, and swing-sorted. By discharging these straw debris in the vicinity of the dust discharge port 25b, cuttings, and the like from the opening 4b of the rear closing plate 4a to the outside of the machine, it is possible to prevent clogging of the suction fan 6 and to prevent the third scattered grain. Grains can be prevented. Further, the adaptability to the harvested grain culm can be improved. Further, when the condition of the harvested grain culm is good, the opening / closing cover 39a can be closed to be used as the complete suction type thresher 3.

On the upper part of the transfer rack 8a of the rocking / sorting device 5, as shown in FIGS. 10 and 11, the grain removal sensor 5b for detecting the transfer amount of the grain removal supplied and transferred onto the transfer rack 8a. A front opening / closing lever 29a for rotating and operating each front chaff sheave 8b of the swing sorting device 5 as shown in FIG. 10 when the swing transfer amount detected by the grain removal sensor 5b is detected to be a predetermined amount or more. An oscillating motor (not shown) for rotating is rotated in the forward direction to rotate the front opening / closing lever 29a around the support shaft 29 as a center of rotation, thereby operating and moving the front chaff sheaves 8b. A part of the grain-removed grains that swings on the shelf 8a leaks from between the front chaff sheaves 8b and swings on the grain sheave 9b so that grains fall off from the grain sieve 9b.

Further, when the swing transfer amount detected by the grain removal sensor 5b is detected to be a predetermined amount or less, as shown in FIG. 11, a front opening / closing lever for rotating each front chaff sheave 8b of the swing sorting device 5 is operated. An oscillating motor (not shown) that rotates 29a is driven in the reverse direction to move the front opening / closing lever 29a to the supporting shaft 29a.
The front chaff sheave 8b is operated to be closed by rotating the front chaff sheave 8b, and the thresher that is swingingly moved on the moving shelf 8a is swingably moved to each rear chaff sheave 8c. The structure is such that it leaks from the rear chaff sheave 8c, is further leaked and supplied onto the Glen sieve 9b, and leaks from this Glen sheave 9b.

As a result, the swing movement amount of the threshing grains supplied to the swing sorting device 5 and swing-transported on the transfer rack 8a varies from the front chaff sheaves 8b to the grain sheaves 9b.
By transferring to and from each front chaff sheave 8b to each rear chaff sheave 8c, the sorting performance can be improved and the third grain scattering can be prevented.

A grain removing sensor 5b is provided above the transfer rack 8a of the swing sorting device 5, and each front chaff sheave 8b is opened or closed depending on the amount of grain removed detected by the grain removing sensor 5b. In the operation, the lower transfer rack 40 for transferring the supplied grains and the like is provided at the front side of the Glensieve 9b below each of the front chaff sheaves 8b, as shown in FIGS. 10 and 11. Is.

As a result, the grains removed from between the front chaf sheaves 8b by the opening operation of the front chaf sheaves 8b are transferred to the lower side by the lower transfer rack 40 provided below the front chaf sheaves 8b. Since the specific gravity can be sorted on the shelf 40 during the transfer, the sorting performance can be improved.

As shown in FIG. 12, a grain amount sensor 32d for detecting the flow rate of the grains fed in the first deep-fried food container 32a is provided in the first deep-fried food container 32a. When the grain flow rate detected by the quantity sensor 32d is pumped at a predetermined flow rate or higher for a predetermined time or longer, the front chaff sheaves 8b of the rocking sorting device 5 are automatically closed and controlled.
Further, when the grain flow rate detected by the grain amount sensor 32d is pumped at a predetermined flow rate or less for a predetermined time or more, the front chaff sheaves 8b of the rocking sorting device 5 are automatically closed and controlled. Is.

As a result, the third scattering of the grains is reduced and the sorting performance is improved. Further, when the grain shedding is intermittently flown to the side of the Glensieeve 9b by the pillow handling etc., the straw waste is most in the sorted product. ,
And, many cuts and the like were mixed in, which caused a defective selection, but this can be prevented.

[Brief description of drawings]

FIG. 1 is an enlarged side view of a rear closing plate portion of a suction type thresher.

FIG. 2 is an enlarged rear view of the rear closing plate of the suction type thresher.

FIG. 3 is an enlarged side view of the Straw rack of the open type thresher.

FIG. 4 is an enlarged plan sectional view of the Straw rack of the open type thresher.

FIG. 5 is an enlarged side view of the Straw rack of the suction type thresher.

FIG. 6 is an enlarged rear view of the Straw rack of the suction type thresher.

FIG. 7 is an enlarged side sectional view of the thresher.

[Fig. 8] Enlarged flat sectional view of the thresher

9 is a sectional view taken along line AA of FIG.

FIG. 10 is an enlarged side cross-sectional view of the rocking / sorting device during operation.

FIG. 11 is an enlarged side cross-sectional view of the rocking / sorting device section when it is operating.

[Fig. 12] Overall side view of the combine

FIG. 13 is a view showing another embodiment, which is an enlarged side view of the second processing net portion.

FIG. 14 is a view showing another embodiment, which is an enlarged side view of the second processing net portion.

FIG. 15 is a view showing another embodiment, which is an enlarged rear view of the adjusting plate portion of the swing selecting device.

FIG. 16 is a view showing another embodiment, which is an enlarged side view of the adjusting plate portion of the swing selecting device.

FIG. 17 is a view showing another embodiment, which is an enlarged rear view of the adjusting plate portion of the swing selecting device.

FIG. 18 is a view showing another embodiment, and is an enlarged side view of the opening / closing cover part of the rear closing plate.

FIG. 19 is a view showing another embodiment, which is an enlarged rear view of the opening / closing cover portion of the rear closing plate.

[Explanation of symbols] 3a Left machine wall plate 3b Right machine wall plate 3c Front wall plate 4a posterior plate 4b opening 5 Swing sorter 6 suction fan 7 boxes 8d Straw 23 Threshing room 25b Dust outlet 26 Dust treatment room α1 predetermined angle α2 predetermined angle B transfer start end B Transfer end part

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kei Kugimiya             No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture             Technology Department Co., Ltd. F term (reference) 2B095 AA01 AA02 AA07 AA12 BA03                       BA28 BB01 BB20 BB21 CA02                       EA03 EB02 EB17 EB19

Claims (3)

[Claims] 1. Left / right machine wall plates 3a, 3b and front machine wall plate 3
c and a detachable rear closing plate 4a, in a box-shaped box body 7, a threshing chamber 23 for threshing culms, and the threshing chamber 2
3, a dust treatment chamber 26 for treating dust, and a swing sorting device provided with a plurality of straw racks 8d in the front-rear direction at a transfer end portion for swing sorting while receiving and removing grain. 5, and on the opposite side of the dust discharge outlet 25b for discharging the treated dust in the dust treatment chamber 26, there is provided a suction fan 6 and the like for sucking and discharging straw dust, crushed grains, and the like in threshing. An opening portion 4b is provided on the dust blocking chamber 26 side of the rear closing plate 4a, and a plurality of stroll racks 8d of the swing sorting device 5 on the dust handling chamber 26 side are provided so as to project from the opening portion 4b. A thresher sorting device characterized in that 2. A plurality of stroll racks 8d of the rocking / sorting device 5 are alternately provided with a predetermined inclination angle α1 of a steep inclination and a predetermined inclination angle α2 of a gentle inclination. The thresher sorting device according to claim 1. 3. The transfer start end a of each of the plurality of stroll racks 8d of the rocking / sorting device 5 has substantially the same height position, and the transfer end end b has a height position of dust removal processing. The thresher sorting device according to claim 1, wherein the sorting device is provided so as to be gradually lowered from the chamber 26 side toward the suction fan 6 side.