JPH0646665A - Second return device in thresher - Google Patents

Abstract

PURPOSE:To enable to perform a good grading work by accurately lifting and returning the second graded material toward the upstream side of the first grading section of an oscillation grading member. CONSTITUTION:The second grade material-returning device of the thresher in which an oscillation-grading member is installed in a grading air passage from the lower part of a threshing chamber to a rear dust-removing and grading chamber and in which a transfer spiral is placed below the second grading section placed on the transfer downstream side of the first grading section is constituted by tilting the second graded lifting spiral cylinder continuously arranged on the transfer end of the second receiving chute toward the transfer upstream side of the graded material, tilting a throwing blade 47c and an extrusion port placed at the upper end of the lift spiral of the second lifting spiral cylinder 47, and opening the extrusion port toward the upstream side of the first grading section of the oscillating grading member 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thresher for threshing and selecting grain culms.

[0002]

2. Description of the Related Art Conventionally, a lifting / sorting body is installed in a sorting air passage extending from a lower part of a handling chamber to a dust sorting chamber, a second lifting spiral cylinder is vertically raised, and a throwing casing mounted on the upper end thereof is generally omitted. A second reducing device of a threshing device which is horizontal and opened toward the above-mentioned swing selecting body is already known from Japanese Patent Publication No. 57-8583.

[0003]

In the second reducing device in the known threshing machine, the second lifting spiral cylinder was erected vertically, so when the second one was running out, When the grain moves to the outer circumference due to the centrifugal force generated by the rotation of the lifting spiral, it drops along the inner circumference of the lifting cylinder, so it cannot be lifted, and the dropped kernel rotates the lifting spiral. Was over-processed and damaged significantly. Further, since the throwing casing and the throwing port thereof are substantially horizontal, the thrown second object is widely dispersed and thrown before and after the swing sorting body, and the straw is moving in a layered manner at the most sorting portion. Those scattered on the scraps moved to the No. 2 sorting section without leaking and were returned to No. 2 again, the sorting performance deteriorated and the grains were further damaged.

[0004]

SUMMARY OF THE INVENTION According to the present invention, an oscillating sorting body is installed in a sorting air passage extending from a lower side of a handling chamber to a rear dust sorting chamber, and the oscillating sorting body is located below the most sorting portion. In the thresher equipped with the first receiving trough with the first transfer spiral installed, and the second receiving trough with the transfer spiral installed below the second sorting section on the lower side in the transfer direction, A second lifting spiral cylinder connected to the transfer end of the gutter is installed obliquely toward the upper side in the selection transfer direction, and the discharge port at the upper end of the second lifting spiral cylinder and the upper end of the installed lifting spiral By tilting the throwing blades attached to the above-mentioned part facing the discharge port so that the front part becomes lower, and opening the discharge port toward the uppermost side of the sorting part of the swing sorting body, During the pumping to reduce the number, the mixed grain is collected under the slanted second lifting spiral cylinder and reliably pumped, and also to the swing sorting body. Has solved the above problems so as to be able to longitudinal width to the upstream side from the most sorting section is discharged obliquely vertically to reliably reduced to a narrow range at the time of throwing.

[0005]

[Function] Grains and small straw debris generated in the handling room leaks from the net to the start end side of the rocking sorter, and is gravity-sorted while it is transferred by rocking to lower the grain. As the straw dust floats up, it moves to the first sorting section, the first grain leaks in the first sorting section, is wind-selected and drops into the first trough, and the first transfer spiral is When it is transferred, the fried cylinder is lifted and put into an appropriate container such as a hopper or a grain tank. The straw waste containing the second residue remaining on the first sorting section moves to the second sorting section and undergoes further sieve sorting and wind sorting, and the second article drops into the second trough and is transported to the second trough. It moves to the side of the fuselage by a spiral, and the lifting spiral in the second lifting cylinder lifts it diagonally forward and upward, and the throwing blade has an inclined rotation trajectory from the discharge port to the top of the swing sorting body. Throw from the sorting section to the better side.

[0006] Since the second lifting spiral cylinder is inclined obliquely forward, the grains in the second material are lifted in a state of gathering under the second lifting spiral cylinder, At the time of throwing, since the discharge port and the throwing blade are inclined, they are discharged diagonally up and down, which allows the throwing width before and after to be narrowed and surely returns to the upper side of the sorting section. A good re-sorting process can be performed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. 1 is a thresher mounted on one side of a machine base 3 having a traveling unit 2, and on the other side is a control panel 4 in order from the front. ,
An engine 5, a driver's seat 6, a grain tank 7 and the like are provided, a pretreatment device including a mowing device 8, a vertical feeding device 9 and a lifting device 9a is provided at a front portion, and a cutter 10 (or a binding device) is provided at a rear portion. ) Etc. are equipped with a straw treatment device.

Further, in the threshing device 1, the handling cylinder 11 is axially mounted in the handling chamber 12 so that the front portion thereof is lowered, and the rear end of the dust sorting chamber 13 is extended from the rear half of the handling chamber 12 on the right side in the traveling direction. A processing unit 14 is provided that extends over the entire area and the front portion is lower than the rear portion and the handling chamber 12, and the processing portion 14 is configured by a front transfer chamber 14a and a rear processing chamber 14b, and a transfer spiral 15 and a processing cylinder. 16 in one, the processing chamber
14b, the processing shaft 17 has a front end supported by an inlet plate 18 and a rear end supported by a rear wall 19a of the processing chamber 14b through bearings 17a. mouth
It is connected by 20.

Further, a swing sorting body 25, which is provided with a feed chain 22 and a sandwiching rail 23 along the handling port 21 on the left side in the traveling direction, and is installed from below the receiving net 24 to the dust sorting chamber 13, ,
The corrugated transfer plate 26 that faces the lower surface of the receiving net 24 in a side view over the entire machine width, the downwardly inclined flow plate 27a that faces the lower surface of the transfer chamber 14a, and the wave that faces the most trough 28. It comprises a mold transfer plate 27b and a sorting net 29, and a straw rack 31 facing the second gutter 30. Airflow direction plates 32 and 32 are provided below the sorting net 29 and the straw rack 31, respectively. The blower windmill 33 provided at the lower part of the mold transfer plate 26 and the suction windmill 34 installed at the upper part of the dust sorting chamber 13 (on the side of the grain tank 7) and facing the rear end of the processing chamber 14b are A sorting wind is formed, and the sorting wind of a cross-flow fan 35 provided in the front part of the second gutter 30 blows through the straw rack 31 and is blown to a dust outlet 36.

Further, the desk type cutter 10 is rotatably supported by a ladder type frame body 37 standing upright from the rear side machine base 3, and the front side is on the machine wall of the threshing apparatus 1. It is detachably locked with a locking tool, and is set in a state in which it closely contacts the rear surface of the dust sorting chamber 13 as shown in FIG. When removing 25, remove the locking tool and rotate it 90 degrees around the shaft support to clamp it.
It can be locked to the frame body 37 by 39, and the ladder type frame body 37 supports the rear part of the grain tank 7 by the connecting rod 38. Next, the configuration of each part will be described.

[Threshing part] The conical part at the front of the drum 11 has solid teeth 40 at the front end and low linear teeth 40a at the rear.
, Solid teeth 40b ··· near the front of the cylinder, normal linear handle teeth 40c ··· at the subsequent part, and linear teeth at the end with narrow spacing. The teeth 40d ... And the solid teeth 40e ... Are alternately planted at intervals in the circumferential direction, and the plate 24a to which the front part of the receiving net 24 is attached is a steep slope part at the front end and a gentle slope that follows it. The part 24b and the gently sloped part 24
A large number of leak holes 24c are formed in b. Further, the grains scattered from the handling port 21 to the feed chain 22 side during the threshing process pass through between the side wall and the transfer chamber 14a and fall onto the swinging / sorting body 25 as indicated by an arrow in FIG.

[Processing part] The processing cylinder 16 has a large number of solid type processing teeth 16a having a lead angle for rearwardly transferring the processed material on the outer peripheral surface, and a plate surface is provided at a portion corresponding to the discharge port 42. , Tooth 16b, which is orthogonal to the processing axis 17, is implanted,
The discharge port 42 directly faces the suction port of the suction wind turbine 34, and the suction wind turbine 34 is positioned above the swing sorting body 25 and sucks the dust sorting chamber 13 upward to be the first object. Also, since the wind selection performance of the second product is improved and the position is lower than the discharge port 42, it is possible to reliably suck and discharge the straw dust even if it is wet, and the treatment drum receiving net 41 is used as the treatment drum. As shown in FIG. 6, it is stretched from the outer middle portion to the inner upper portion at a portion facing 16.

Further, as shown in FIG. 4, a front guide plate 43, which is widened toward the suction wind turbine 34 in a plan view, is continuously provided on the front side of the discharge port 42 and the suction wind turbine 34. 42 to 16 treated teeth
The dust discharged by a is sucked and discharged by the suction windmill 34, and during that time, it is wind-selected and the remaining grains fall and are collected. At that time, as shown in FIG. 8, the bracket 43a hanging from the rear wall 19 near the lower portion of the discharge port 42 and the front guide plate 43.
A large number of parallel spokes 49 ...
When the supporting shafts 49a are driven by the processing shaft 17 via the crank arms 49b, 49b and the rod 49c while arranging them in a comb shape, when the wet grain culms are threshed, the straw chips having a large specific gravity are the spokes. 49 .. Straws are screened without dropping by 49 .. Straws are surely discharged to the outside of the machine by the suction windmill 34.

Further, the rear wall 19a of the processing chamber 14b is bolted.
It can be attached to and detached from 45 and 45. The cutter 10 is swung 90 degrees toward the grain tank 7 side to open the rear surface of the dust chamber 13, and the bolts 45 and 45 are pulled out to pull out the processing cylinder 16 rearward. When,
The front end of the processing shaft 17 comes out of the sprocket 17b, and the processing cylinder 16, the transfer spiral 15 and the processing shaft 17 can be taken out integrally. Furthermore, the lower side of the transfer spiral 15 is covered with an iron plate 15b having a large number of leakage holes 15a .. The processing cylinder receiving net 41 is divided into two parts at the inner lower part as shown in FIG. The divided portion is fixed to the through frame 44 to which the pipe is welded, and the through frame 44 also supports the iron plate 15b as shown in FIG. 5, the front end is screwed to the inlet plate 18, and the intermediate part is It is supported by penetrating the outlet plate of the handling chamber, and its rear end is screwed to the rear wall 19a.

[Grain discharging device and No. 2 reducing device] At the end of the transfer of the first gutter 28, a frying cylinder 46 is erected substantially vertically,
The discharge portion at the upper end of the fried grain cylinder 46 is opened and communicated with the upper part of the grain tank 7, and a second lifting spiral barrel 47 that goes diagonally forward and upward is provided at the transfer end of the second trough 30. Has been erected,
The throwing casing attached to the upper end of the second lifting spiral cylinder 47.
Since 47a is inclined obliquely to the front orthogonal to the second lifting spiral cylinder 47, its discharge port is in the above-described inclined posture and the swinging sorting body is
It opens toward the top of the flow plate 27a of 25, and the second transfer spiral 30
The second products transferred to the grain tank 7 side in a are gathered on the lower surface side of the second lifting spiral cylinder 47, and the lifting spiral in the second lifting spiral cylinder 47 is collected.
It is lifted by 47e and is thrown toward the flow plate 27a by the blade 47c which is fixed to its spiral shaft at the upper end and rotates counterclockwise when viewed from above, and the thrown second object is fed by the corrugated transfer plate 26. Gravity sorting is carried out while swinging and transferring, and the grains become the lower layer, and light things such as straw scraps become the upper layer and collide with the objects to be sorted flowing down on the flat plate-shaped flow plate 27a. Although the front-back width is narrow, it is widely dispersed over the entire lateral width.

Further, as shown in FIG. 19, the intersecting portion of the fried grain cylinder 46 and the second lifting spiral cylinder 47 is detachably coupled by a connecting metal 48 and a screw so that both form a frame through the machine wall. In addition, outlets 46a and 47d are provided at the portions facing the bases of the fried grain cylinder 46 and the second lifting spiral cylinder 47, and the outlets 46a and 47d are covered with lids as shown in FIG. 50, 50 can be detachably screwed, or as shown in FIG. 18, the upper part can be screwed and the outer periphery has an edge 50a for making a grain, and the lower part is provided with a hinged lid 50, 50. It can be cleaned, and at that time, the grains picked up from both can be received by one dish 51, and further, the outer peripheral plate 47b of the throwing casing 47a has one end hinged, and the other. The ends are screwed and can be opened and closed as shown in FIG.

[Processing chamber and No. 4] The processing chamber 14b is shown in FIGS.
As shown in Fig. 7, the front part is located closer to the lower part of the handling room 12 and the rear part is biased toward the ear side in plan view behind the culm 52. Position, horizontal in side view, and provided with a straw discharging device 53 composed of a pair of parallel transport chains, and a fourth port 55 for collecting the grains falling from the culm transported by the straw discharging device 53. As shown in FIGS. 6 and 14, the inner flow plate a slanted from the inside of the feed chain 22 toward the middle part of the machine width, the rear flow plate b slanted from the rear to the front lower diagonal, and the straw conveying The processing body receiving net 41 is configured by connecting a portion outwardly protruding along the ear side of the device 53 and an outer flow plate c hanging toward the inside of the machine wall in a funnel shape.
The material to be sorted that has leaked from the inside is blocked by the inner flow plate a and falls into the feed chain 22 side of the rocking sorting body 25, and the stab drops that have fallen into the fourth port 55 fall into the side opposite to the feed chain 22. Enter and be selected. In addition, the distance L ₁ between the lower end of the inner flow plate a and the side plate near the processing cylinder 16 is larger than the distance L ₂ with the other side plate, and the separation wind from the blower wind turbine 33 is separated from the suction wind turbine 34. I try to blow up a lot.

[Machine Frame] The machine frame of the threshing apparatus 1 is shown in FIGS.
As shown in FIG. 5, the left and right side plates 56, 56, the entrance plate 18 and the rear wall 19
Is divided into upper and lower parts by an oblique dividing line 57 that makes the rear part higher than the front part, and this dividing line part is detachably fastened with a plurality of screws 58 ... The rocking sorter 25 is supported by the lower machine frame, and the handling cylinder 11 and the processing cylinder are
By pivotally supporting 16 on the upper machine casing such that the front part of the upper machine casing is lowered, the upper machine casing can be disassembled and the swing selection unit and the like can be easily maintained.

[Operation] In the threshing device 1 for combine harvester described above, the root portion of the supplied grain culm is nipped and conveyed by the feed chain 22 and the pinching rail 23, and the ear side is inserted into the handling chamber 12 from the supply port. And threshing is performed by the handling cylinder 11.
At that time, the inserted grain culms are solid teeth 40 at the start end of the handling cylinder 11.
・ By rapidly moving to the rear part by means of the linear teeth 40a near the base of the cone and the solid teeth 40b following it, it is possible to suppress the shedding of a large amount of grains at the initial stage of threshing, Grain stalks that are transferred to the handling teeth 40c ··· and undergo an approximately average shredding treatment, and at the terminal end the movement is suppressed by the linear teeth 40d ··· while being combed by the linear teeth 40d ··· arranged in a row. The solid tooth 40e having a lead angle promotes the discharge to remove the sting particles, and the straw is discharged from the culm outlet 52 and remains while the straw conveying device 53 conveys the slant backward. Grains fall into No. 4 55 as described above.

On the other hand, the grains and small straw scraps that have leaked from the receiving net 24 and the leak holes 24c fall onto the corrugated transfer plate 26 and the flow plate 27a of the rocking sorter 25, and are transferred and sorted. The second product from the lifting spiral cylinder 47 collides and disperses and merges with the entire width of the flow plate 27a, and the grains are wind-selected by the selection wind of the blower windmill 33, while being sorted from the sorting net 29 to the first trough 28. Straws containing the second material that fell and remained on the sorting net 29 migrated to the straw rack 31 and sieved, and were also wind-selected by the sorting wind from the cross-flow fan 35 and the second trough 30. And is transferred to the second lifting spiral cylinder 47 as described above.

On the other hand, of the grain removed in the handling chamber 12, long straws, cuttings and the like are transferred from the dust inlet 20 to the transfer chamber 14 of the processing unit 14.
a, and is sent to the processing chamber 14b after being processed to some extent while being centrifugally separated by the transfer spiral 15 and transferred.
At the same time, the grain leaks from the leak hole 15a, and the processing cylinder 16 moves the object to be treated backward by the treatment tooth 16a .. After cutting, the single-grained grains and the finely divided straw waste, etc. leak from the processing drum receiving net 41 and merge with the other side of the swing sorting body 25 to swing-sort. .

Meanwhile, the sorting wind from the blower wind turbine 33 blows through the sorting net 29 to sort out the most grain, and FIG.
As shown in FIG. 3, the inner flow plate a is slanted down toward the middle part of the machine width, and is collected, which is passed through the processing cylinder receiving net 41 into the processing chamber 14b to promote the dispersion of the object to be processed, and then the discharge port.
42 (partly blown out from the processing cylinder receiving net 41),
The treated straw scraps that have moved to the rear end of the processing chamber 14b have suction teeth from the outlet 42 by the processing teeth 16b having no lead angle.
The suction windmill 34 is wind-sorted by the cyclone sorting wind composed of the front guide plate 43 and the rear wall 19, and the grains fall and are collected on the lower straw rack 31 and float on the straw. The dust and the like are mainly sucked and discharged to the outside of the machine by the suction windmill 34, and the remaining straw and dust and the like are wind-selected by the sorting wind from the cross flow fan 35 and discharged backward from the dust discharge port 36 by the straw rack 31.

When the No. 2 product is lifted up diagonally forward and upward by the No. 2 lifting spiral cylinder 47 of the No. 2 reduction device, the blade 47c at the upper end of the No. 2 lift-up screw 47c has the flat plate-shaped flow from the obliquely downward discharge port. Board 27
When viewed from above toward the center of the board surface of a, it rotates in a counterclockwise diagonally upward and downward rotation trajectory and is thrown up and thrown, so that it is narrow in the front-back direction but dispersed in a wide range in the lateral direction. The grain in the object collides with the lower layer and the straw etc. on the upper side while colliding with the object to be sorted which has been gravity-sorted from the upper side, and the flow plate 27
Dispersed well along the plate surface of a, averaged in the width direction of the swing sorting body 25, and then transferred to the sorting net 29, and eventually the object to be sorted rises in a part of the swing sorting body 25. , Wet objects to be sorted do not clump or clog.

[0024]

According to the present invention, the swinging sorting body 25 is installed in the sorting air passage extending from the lower side of the handling chamber 12 to the dust collecting sorting chamber 13 at the rear side, and the swinging sorting body 25 is located below the most sorting portion. In the thresher equipped with the first gutter 28 with the most transfer spiral installed inside, and the second gutter 30 with the transfer spiral installed below the second sorting section on the lower side in the transfer direction, The second lifting spiral cylinder 47 connected to the transfer end of the number receiving trough 30 is obliquely installed toward the upper side in the sorting material transfer direction, and the discharge port at the upper end of the second lifting spiral cylinder 47 and the interior are installed. The throwing blade 47c, which is attached to the upper end of the lifting spiral 47e and faces the discharge port, is tilted so that the front part becomes lower, and the discharge port is located on the uppermost side of the sorting part of the swing sorting body 25. Since the second lifting spiral tube 47 is used to lift and return the second object, the second object is collected under the second lifting spiral tube 47 and secured by the lifting spiral 47d. It can be pumped in. In addition, the second object that was pumped was blown from the inclined outlet.
By 47c, they are narrowly distributed in the front-back direction of the sorted matter and widely dispersed in the lateral direction and are thrown into the uppermost side of the sorting unit 25 of the swing sorting body 25, and while being swung thereafter, they are sufficiently sorted by gravity. It is possible to perform sieve screening and wind screening in the No. sorting section, so that the grain that has been reduced to the second number can be collected in the most gutter, and the grain in the second number is repeatedly reduced to the second number. Can be prevented from being damaged.

[Brief description of drawings]

FIG. 1 Side view of combine

FIG. 2 Same as above

[Fig. 3] Vertical side view of the threshing device

[FIG. 4] Same as above, vertical plan view

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

FIG. 6 is a sectional view taken along line BB of FIG.

FIG. 7 is a sectional view taken along line CC of FIG.

FIG. 8 is a sectional view of another example of the same as above.

[Figure 9] Rear view

FIG. 10 is a front view of the supply section of the handling room.

FIG. 11 is a side view with the processing cylinder removed.

FIG. 12 is a cross-sectional view of a processing shaft mounting device.

FIG. 13 is a horizontal cross-sectional view of a processing unit

FIG. 14 is a plan view showing a straw conveying device and a fourth mouth, etc.

FIG. 15 is a side view of the side of the frying cylinder and the second lifting spiral cylinder.

FIG. 16 is a partial side view of the same as above.

FIG. 17 is a plan view of the upper part of the fried cylinder.

FIG. 18 is an exploded perspective view of the lower portion of the fried food cylinder.

FIG. 19 is a view on arrow E of FIG.

FIG. 20 is a perspective view showing a state in which the cutter is retracted and rotated rearward.

FIG. 21: Rear view

[Fig. 22] Plan view showing the discharge state of the second material 11 Handling cylinder 13 Dust sorting chamber 24 Receiving net 25 Swing sorting body 27a Flow plate 29 Sorting net 33 Blower wind turbine 34 Suction wind turbine 41 Processing drum receiving net 47 Second lifting Spiral tube

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kakuriki, 667 Izaya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. (72) Misao Kitasaka 667, Izuya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture Address 1 Mitsubishi Agricultural Machinery Co., Ltd. (72) Inventor Takanori Otani 667 Izamocho, Higashi Izumo-cho, Yatsuka-gun, Shimane Prefecture Address 1 Mitsubishi Agricultural Machinery Co., Ltd. (72) Noboru Ito 667, Ojiya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture Address 1 Within Mitsubishi Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A swinging sorting body 25 is installed in a sorting air passage extending from below the handling chamber 12 to a rear dust collecting sorting chamber 13, and the swinging sorting body 25 is installed.
The first gutter 28 with the most transfer spiral inside is installed below the first sorting part, and the second gutter 30 with the transfer spiral inside is located below the second sorting part on the lower side in the transfer direction. In the threshing machine provided, the second lifting spiral cylinder 47 connected to the transfer end of the second trough 30 is obliquely installed toward the upper side in the sorting material transfer direction, and the upper end of the second lifting spiral cylinder 47 is provided. Discharge port and internal lifting spiral 47
The throwing blade 47c, which is attached to the upper end of e and faces the discharge port, is tilted so that the front part is lowered, and the discharge port is opened toward the uppermost side of the sorting part of the swing sorting body 25. The second reduction device in the thresher, which is characterized by