JP5741797B2 - Grain sorting device - Google Patents

Description

  The present invention relates to a grain sorting apparatus for sorting grains from a threshed product in a threshing apparatus used for a combine or the like, and more particularly to a member that comes in contact with grains of a rocking sorter such as a fin.

  In general, the grain sorting device sends processed products (grains, straw scraps, chopped rice cakes, etc.) flowing down from the receiving net of the handling room to the swing sorting unit, and wind sorts while swinging at the swing sorting unit. . The swing sorting part is provided with a grain sheave at the front, a chaff sheave at the rear, and a stroller at the rear, and a large number of fins are juxtaposed in the chaff sheave so that their rotational positions can be adjusted.

  Conventionally, a fluorine coating layer is formed on the moving surface (transfer surface) that receives the threshing processed product in the above-mentioned Glen Sheave, Chaff Sheave and Strollac, and even if the processed product is wet with morning dew or night dew by the water repellency of the fluorine coating layer, There has been proposed a grain sorting device that prevents the processed material made of the wet material from adhering to the transfer surface and improves the sorting performance (see Patent Document 1).

JP 2006-271315 A

  When the transfer surface is in operation, it always receives a threshing product, a rubbing force such as grain acts, the fluorine coating layer peels off relatively early, and the water repellent effect is reduced. . For this reason, in order to maintain the water-repellent effect, it is necessary to replace the parts of the swing sorting part having the transfer surface such as the fins at an early stage.

  Therefore, an object of the present invention is to provide a grain sorting device that maintains the water-repellent effect by repeatedly using the parts of the swing sorting unit such as the fins.

The present invention provides a grain sorting device (10) for sorting the threshed processed product into grains and impurities such as straw scraps by rocking sorting and wind sorting.
The fins (26) of the chaff sheave (22), whose both ends are attached to the support member (36) and supported by the swinging frame (16), are in contact with the processed material on one side and transfer the processed material while sorting. With
The fin (26) has a water-repellent layer over both the front and back surfaces, and a flat portion (35a) and an upper protruding portion (35b) protruding in the opposite direction at the upper end portion and the lower end portion of the flat portion (35a). And the lower protrusion (35c), the side surface shape is vertically symmetric,
The support member (36) transfers the fin (26) while sorting the processed material in contact with the processed material on either the front surface or the back surface of the fin (26) by repeatedly changing the fin (26) in the vertical direction. When the mounting direction of the upper projecting portion (35b) or the lower projecting portion (35c) is incorrect, the projecting portions (35b, 35c) projecting in the opposite direction are the support members. (36) interferes with the mounting,
It is in the grain sorter characterized by this.

According to the present invention according to claim 1, Fi down the chaff sieve has a water-repellent layer such as a fluorine coating layer, be processing composed of wet material, prevents the treated from adhering to the fins and, yet as it is possible to perform a grain sorting process with high efficiency, when the water-repellent layer is flake off from the surface of the fin, by replace the swing frame is turned over the fins, repellent The back side from which the water layer does not peel off becomes the function of sorting the processed material, and can double the grain sorting processing time due to the high efficiency, and the fin is used repeatedly, so that compared to the case of replacing the fin , There is no waste and costs can be reduced.

In addition , the chaff sheave fins are selected by wind while the processed material is transferred by the rocking and the grains etc. are leaking from between the fins. Although the layers are easy to peel off, the fins can be easily removed and attached at both ends with a support member, and the fins have a simple structure consisting of a flat part and upper and lower protruding parts and are symmetrical with respect to the upper and lower points. By repeating the vertical movement, the front surface and the back surface can be easily switched as a functional surface that comes into contact with the workpiece.

Also , when the front and back surfaces of the fin are repeatedly replaced, the fin has a simple shape, so there is a possibility of incorrect mounting. In this case, there is no hook receiving portion consisting of a lower protruding portion, and the sorting function is lowered. However, when the projecting direction of the projecting portion is reverse, the support member interferes with the reverse projecting portion and cannot be mounted, so the erroneous mounting can be reliably prevented.

The top view which shows the combine which can apply this invention. The side view which shows the outline of the threshing apparatus. The cross-sectional view of the center part of a traveling body. The perspective view which shows the chaff sheave. Side view of chaff sheave. Front sectional view showing the fin. The disassembled perspective view which shows a fin. (A) is side surface sectional drawing which shows a fin, (b) is the elements on larger scale. The disassembled perspective view which shows the fin by different embodiment. It is side surface sectional drawing which shows the attachment of a fin, (a) is the state attached correctly, (b) shows incorrect attachment. It is side surface sectional drawing which shows the attachment of a fin, (a) is an initial state, (b) is the state turned upside down, (c) shows the state which carried out incorrect attachment. Side surface sectional drawing which shows the fin by other embodiment. Furthermore, side surface sectional drawing which shows the fin by different embodiment. The side view which shows a Glen sieve. The perspective view which shows a treatment room. The perspective view which shows a cutter.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the combine 1 has a traveling machine body 2 supported by a crawler. The traveling machine body 2 is equipped with a threshing device 3 on one (left) side and a driver seat 5 on the other side. Is arranged, and the Glen tank 6 is arranged behind it. A pre-processing unit 7 is disposed in front of the traveling machine body 2 so as to be movable up and down. The traveling machine body 2 is provided with a grain discharge auger 6a that can swing and swing up and down, and can discharge the grain in the glen tank 6 to a predetermined position such as a truck.

  As shown in FIGS. 2 and 3, the threshing apparatus 3 includes a threshing unit 9 and a grain sorting unit (apparatus for sorting the processed products threshed by the threshing unit 9 into grains, straw scraps, dusts, and other contaminants. 10). The threshing unit 9 has a feed chain 8 and a handling cylinder 11 to which the cereal harvested by the preprocessing unit 7 is conveyed, and the threshing part 9 conveyed by the feed chain 8 is threshed by the handling cylinder 11 that rotates. The Furthermore, processed products such as grains and straws separated from the straw by the handling cylinder 11 fall from the receiving net 12 to the grain sorting unit 10. The processed material that does not fall from the receiving net 12 is transferred to the processing chamber 18 having the processing cylinder 14 and further processed. Further, the straw (waste) transported by the feed chain 8 is transported to the cutter 15 by the waste chain 13 and cut.

  The grain sorting device 10 has a swing frame 16 that is driven to swing, a red pepper fan 17, a turbo fan 19, and a dust exhaust fan 70, and a processed material dropped from the receiving net 12 of the threshing unit 9. The first and second ports 20 and 71 and the dust outlet 72 are sorted by swinging and wind sorting. The grains sorted into the first mouth 20 are transferred to the milled cylinder 24 by the first auger 28 and carried into the glen tank 6. Contaminants such as cereal grains, straw scraps, and straws are separated from the second mouth 71, and these processed products are conveyed to the processing chamber 18 and returned to the cereal sorting unit 10 again. From the dust outlet 72, a thing with a low specific gravity, such as straw scraps, is discharged out of the fuselage.

  The swing frame 16 is provided with a grain sheave 21 positioned below the receiving net 12, a chaff sheave 22 on the rear side thereof, and a stroll rack 23 on the rear side thereof. A sorting screen 25 is arranged so as to cover the flow path to 20. Glen sieve 21 is formed of a sawtooth corrugated plate, and by swinging, the processed material is divided into a layer having a heavy specific gravity such as grain and a layer having a light specific gravity such as straw dust as an upper layer. Transport backwards. The chaff sheave 22 has a large number of plate-like fins 26 that are longitudinal in the width direction. The spacing between the fins 26 is adjusted and selected by receiving wind from the tang fan 17, and the processed material is moved backward by swinging. While being transported, grains having a high specific gravity are dropped from the above-mentioned interval, and straw scraps having a low specific gravity are blown together with the intake of the dust exhaust fan 70 and discharged from the dust outlet 72. The Strollac 23 is made up of a large number of cross-shaped plate members that are elongated in the front-rear direction, and the cutting straw or the like is moved backward by the swinging and discharged from the dust outlet 72. In the sorting net 25, the grain or the like dropped from the chaff sheave 22 is passed through a sieve by swinging, and the grain falls to the first port 20, and the other is guided to the second port 71.

Chaff sieve 22, as shown in FIGS. 4 to 6, has a chaff sieve mounting plate 30, 30 constituting the rocking frame 16, the stationary fins ₂₆ 1 over the side plates 30, 30 of the left and right, 26 ₁ Fixed. These stationary fins 26 _1, 26 ₁ is composed of fins of the front and rear ends of the chaff sieve 22, while the number of fins 26 ... consists of an adjustable movable fin pivoting (swinging) position. The movable fins 26 are divided into a plurality of groups, in this embodiment, four groups A, B, C, and D, and each fin 26 can control the rotation angle for each group. Each of the movable fins 26... Is connected to each of the groups A, B, C, and D with its upper end portion rotatably supported on the chaff sheave mounting side plate 30 by a rotation fulcrum shaft 31 (see FIG. 6). The lower ends of the side plates 32 are rotatably connected to the side plates 32, and the fins 26 of the groups A, B, C, and D are rotated according to the amount of processed material supplied from the threshing unit 9 to the grain sorting unit 10. The moving angle is controlled. For example, the amount of processed material supplied to the grain sorting apparatus 10 is detected by a layer thickness sensor that detects the layer thickness of the Glen sieve 21 or an air volume sensor that detects the amount of air passing through the chaff sheave 22, and there are many processed products. When the yield is high, fins 26 of all groups A, B, C, and D are opened, and a large amount of processed material leaks from the chaff sheave 22; → B → C → D) As a closed position, the amount of leakage from the chaff sheave 22 is reduced.

Each group A, B, C, 1 single driving fin 26 ₂ is provided for each D, the driving fin 26 ₂ is in conjunction with the fin closing control motor, successively by the amount of treatment product as described above Open and close operation. By the rotation of the driving fins 26 _2, opening and closing operation so that the same angle as the driven fins 26 3 _... each driven fins 26 ₂ of each group constituting a parallel link between the connecting plate 32 and the mounting plate 30 Is done.

As shown in FIG. 6, each driven fin 26 ₃ (26) is detachably attached to support members 36, 36 at both ends thereof, and the support member 36 is a rotation fulcrum that protrudes outward at its upper end. It has the connection shaft 37 which has the axis | shaft 31 and protrudes toward the outer side in the lower end part. The rotating fulcrum shaft 31 is supported by the chaff sheave mounting side plate 30 fixed integrally with the swing frame 16 so as to be rotatable and secured via a spacer 40, and the connecting shaft 37 is connected to the connecting side plate. 32 is rotatably connected.

As shown in FIGS. 7 and 8A, the fin 26 ₃ (26) has a flat portion 35a and projecting portions 35b and 35c that are bent and protruded in opposite directions at the upper and lower edges of the flat portion. It is formed symmetrically about the center point O. The support member 36 is inside the opposite side of the fulcrum shaft 31 and the connecting shaft 37, the groove 41 of the fin 26 ₃ sides the same shape are formed.

Fins 26 _3, as shown in FIG. 8 (b), consists of an iron plate 44, after the coating 42 on the surface and the entire back surface is performed, water-repellent treatment over the entire surface, for example, fluorine coating is applied A water repellent layer (a fluorine coating layer) 43 is formed. In addition, as shown in FIG. 6, the non-coating part E may be provided in a part of fin 26, and you may make it apply a fluorine coating directly on an iron plate. Thereby, when the fluorine coating is peeled off, the unpainted portion E is rusted and discolored, so that it can be easily and reliably recognized that the fluorine coating has been peeled off. The water repellent layer 43 is not limited to the fluorine coating, but may be other materials such as a water repellent polymer resin, or the entire fin may be formed of a water repellent material and the surface may be a water repellent layer.

The support member 36, both ends of the fin 26 ₃ is mounted integrally with the supporting member 36 by fitting the ends of the fins 26 ₃ in the groove 41.

  As described above, the spacing of the adjacent fins 26 is adjusted by controlling the rotation angle of the chaff sheave 22. The chaff sheave 22 is continuously supplied with processed products such as grain and straw scraps transferred by the grain sheave 21, and the grain or the like flows down between the fins 26 or moves backward by swinging thereof. Transport. At this time, even if the processed product is wet with morning dew or the like, the surface of the fin 26 is composed of the water-repellent layer 43, so that the processed product does not adhere to the fin 26 and is sorted with high efficiency. Further, the fin 26 receives the processed material by the projecting portion 35c at the lower end thereof, and in this state, acts by the wind from the tang fan 17 to separate a thing having a low specific gravity, such as straw dust, and at the upper end thereof. The gap between adjacent fins is narrowed by the protruding portion 35b to restrict the entry of straw dust or the like into the gap, thereby improving the sorting effect.

The fin 26, based on its swing, the upper side (one side) F, ie FIG. 8 (a) left of the flat surface 35a in the (upper) portion out under impact of the upper side and the receiving portion of the Ue突 out section 35b Grains and the like are always scraped on the upper side of 35c, and the fluorine coating (water repellent) layer 43 on the upper side (one side) F peels off relatively early, and the effect of the water repellent layer is reduced. The fin 26 of the present invention has the water repellent layer 43 formed on the entire surface thereof and has the same shape even if the front and back sides are interchanged. Therefore, when the upper water repellent layer 43 is peeled off, the front and back sides of the fin 26 are interchanged. .

In other words, remove the fins 26 ₃ from the support member 36. In this state, the fin 26 ₃ as indicated by arrows in FIG. 8 (a), (mainly central point O) in the vertical direction flipped, as the surface (upper side) F what was the rear surface R to date, fitted to both ends of the fin body into the groove 41 again, attaching the fins 26 ₃ to the supporting member 36. At this time, since the turned over the fins 26 ₃ in the width direction, the projecting direction of the upper projecting portion 35b and the lower end collision detecting section 3 5c is even attempt to install to have opposite, not fit the shape of the groove 41, this Such erroneous installation is prevented.

Incidentally, the above embodiment has described a driven fin 26 ₃ of the movable fins, a water-repellent layer 43 is provided on both sides also driving the fins 26 ₂ and the fixed fins 26 ₁ and be replaced sides of the same shape Of course, it may be configured so that the front and back can be similarly changed.

9 and 10 show an embodiment in which the fin body mounting structure is changed. Fins 26 _3, holes a mounting at its opposite ends, has a, support members 36 and 36 has a screw hole b, b to align the mounting holes a, the a. The fin 26 _3, the both ends back surface in contact with the supporting member 36, tightened into the screw hole b of the bolt 45 or screw through the mounting hole a. Similarly the fins 26 _3, by flipping vertically, it is possible to replace the front side and a back side. At this time, the supporting member 36 has its lower end portion 36e is configured so as to be 26 ₃ and the substantially same length as the fins, as shown in FIG. 9 (b), the projecting portion 35b of the fin, 35c in the opposite In this case, the support member lower end portion 36e interferes with the protruding portion 35b extending in the reverse direction to prevent erroneous attachment.

Figure 11 shows an embodiment, which is a partial modification of the structure of the fins 26 _3. This fin 26 _3, the protruding portions 35b extending in the orthogonal direction opposite to the upper and lower flat portions 35a, has a 35c, further extension 35e which is parallel to the said flat portion 35a at its upper and lower ends, is 35f Is formed. Support member 36, FIG 8, as in FIG. 9, has a mounting hole b ', attached by a bolt 45 and a nut 46 in contact with the back surface of the fin 26 _3. In FIG. 11, (a) shows a state mounted to the surface F of the fin 26 ₃ on the upper side (functional surface), (b) shows a state in which replacement by a rear surface R to the upper (functional surface), ( c) shows the erroneous mounting state of incorrectly flipped how fins 26 _3, the lower end portion 36e of the case supporting member 36 interferes in the projecting portion 35b which is opposite direction, to prevent the erroneous mounting.

Figure 12 shows an embodiment in which further changes the fins 26 ₃ and the supporting member 36. Fins 26 ₃ has a flat portion 35a, the projecting portion extending in the front and back both orthogonal directions in one (lower) end of the flat portion (receiving portion) 35 g, and 35h. The support member 36 has a groove 41 ′ having a shape similar to the shape of the side surface of the fin. This fin 26 _3, as shown by the arrows in FIG. 12, (about the vertical axis X-X passing through the flat portion) in the width direction flipped over, the front and back are replaced. At this time, the upper (front) side of the projecting portions 35g and 35h functions as a processed material receiving portion, and the rear surface side does not function as a receiving portion. Even in this embodiment, even if the fins are reversed and replaced in the vertical direction, they are not fitted with the grooves 41 ′ of the support member 36, so that they are not erroneously attached.

FIG. 13 shows a further modified fin 26. Fins 26 of this embodiment, a flat plate 35 ₁ and a detachable fixing freely receiving portion 35 ₂ which Te disconnecting the lower end of the plate 35 _1. Plate 35 ₁ is water-repellent layer such as a fluorine coating on steel plate has been applied to the entire surface, receiving portion 35 ₂ is formed from a high synthetic resin water repellent.

Even in this embodiment, the plate portion 35 ₁ is used in replacement to the back to front, also during replacement the receive portion 35 ₂ is replaced conversely.

  As shown in FIG. 14, the grain sieve 21 is composed of a single saw-tooth corrugated plate 49 and is attached to the swing frame 16. The grain sieve 21 has a point-symmetric shape with respect to the center Y in the front-rear direction, and a water repellent layer such as a fluorine coating layer is formed over the entire surface (front surface, back surface).

  Therefore, even if the water-repellent layer on the front surface F side is peeled off by repeating in the direction of the arrow in FIG. 14 and changing to the swing frame 16, the back surface R side is used as the transfer surface (functional surface) of the processed material. It can be used and the water repellent state can be continued.

  Similarly, a water repellent layer such as a fluorine coating layer is formed on the spiral of the grain conveying auger 28 of the first mouth 20 shown in FIG. Thereby, the friction of a grain and a helix can be reduced and the damage of the grain under conveyance can be reduced. The grain transport auger is not limited to the one in the above-mentioned first mouth, and the same applies to the spirals of all grain transport augers such as the auger in the grain tank 3, the grain discharge auger 9, and the auger of the milled cylinder 24. A fluorine coating layer can be formed.

  FIG. 15 shows an entrance portion of the handling chamber 50 by the feed chain 8 in the threshing unit 9. Fluorine coating is applied to the threshing inlet plate 52 that leads the cereal to the handling cylinder 11 to form a water repellent layer. Thereby, even if wet straw is supplied to the threshing part 9 by the feed chain 8, the threshing inlet plate 52 having the water-repellent layer on the surface makes it difficult to deposit wet straw and straw scraps and accumulates straw. It is possible to prevent scumming and turbulence at the threshing entrance due to scraps and the like. When the effect of the water repellent layer of the threshing inlet plate 52 is reduced, the threshing inlet plate 52 may be replaced.

  FIG. 16 shows the cutter 15 (see FIG. 2), and has a switching plate 56 that guides the waste conveyed from the waste chain 13 to the cutter blade 55. A guide plate 57 having a fluorine-coated water repellent layer formed on the entire surface (front and back surfaces) is fixed to the switching plate 56. The waste conveyed from the waste chain is guided by the guide plate 57 and dropped onto the cutter blade 55. At this time, since the guide plate 57 has a water repellent layer on the surface, the waste is smoothly guided and guided to the cutter blade 55. When the water-repellent layer on the guide plate 57 is peeled off, the guide plate 57 is pulled back and forth and replaced or replaced.

DESCRIPTION OF SYMBOLS 3 Threshing apparatus 9 Threshing part 10 Kernel selection apparatus 16 Oscillating frame 21 Glen sheave 22 Chaff sheave 26, 26 ₁ , 26 ₂ , 26 ₃ fin, transfer member (fixed fin, drive fin, driven fin)
35a Flat part 35b Upper (end) protruding part 35c Lower (end) protruding part 36 Support member 43 Water repellent layer (fluorine coating layer)
49 Transfer member (corrugated sheet)

Claims (1)

In the grain sorting device that sorts the threshed processed product into grains and other impurities such as straw scraps by rocking sorting and wind sorting,
Both ends thereof are attached to a support member and supported by a swinging frame, provided with fins in a chaff sheave that is in contact with the processed material on one side and that transfers the processed material while sorting,
The fin has a water-repellent layer over both front and back surfaces, and has a flat portion and upper and lower protruding portions that protrude in opposite directions at the upper and lower ends of the flat portion, and the side shape is a vertical point. Is symmetric,
The support member can be transferred while sorting the processed material in contact with the processed material on either the front surface or the back surface of the fin by repeatedly replacing the fin in the vertical direction. In the case of erroneous attachment in which the protruding direction of the protruding portion or the lower protruding portion is reversed, the protruding portion protruding in the reverse direction interferes with the support member and cannot be mounted.
A grain sorting device characterized by that .

Images