JP2007174997A - Swinging selection structure of threshing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To heighten the selection efficiency and selection accuracy in the following selection process by rapidly selecting and separating a treated product swung and conveyed by a grain pan to grains and waste straw in a swinging selection structure of a threshing device, constituted so that a threshed product dropped and fed from a threshing chamber is selected by sieving by swinging and conveying the threshed product rearward, and selected by wind by a selection wind from a blower. <P>SOLUTION: The swinging selection structure of the threshing device has a front grain pan 14 in a wave shape for receiving, and swinging and moving the treated product leaked from a front part of a receiving net 4, installed in the front part of a swinging selection case 7, a chaff sieve 15 for coarse selection installed from the lower part of the rear terminal of the front grain pan 14 over a rear prescribed range, and a perforated selection body 20 for sieving and selecting the treated product sent by the front grain pan 14, and extended from the rear end of the front grain pan 14 rearward in a cantilever shape. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  According to the present invention, the threshing apparatus swinging and sorting is configured to screen and screen the threshing product dropped and supplied from the handling chamber by using the swinging sorting case to the rear and screen the screen. Concerning structure.

  As the swing sorting structure, the front of the swing sorting case includes a corrugated front Glen pan that receives the processed material leaked from the front of the receiving net and swings and moves it backward. A chaff sheave for rough sorting is provided from below the rear end of the rear span over a predetermined range, and a sieve line for sieving and sorting the processed material transferred by the front gren pan is extended in a cantilever direction from the rear end of the front gren pan. Is known (for example, see Patent Document 1).

JP 2003-9640 A

  In the oscillating sorting structure having the above configuration, the processed material leaked from the front half of the receiving net is received by the front gren pan and oscillated backward, while light straw scraps and heavy grains are moved up and down. Specific gravity difference is sorted into two layers. The lower grains and fine straw scraps that reach the end of the front gren pan immediately pass through the sieve line and fall downward, and the straw grains that do not pass are received by the sieve line and loosened while being transported backwards. Grains that have been sorted are separated and dropped.

  In this way, the sieve line provided at the rear part of the front grain pan allows the lower grain in the processed product that has been oscillated and transferred by the front grain pan to quickly fall forward, and the upper straw scraps to be transported rearward. However, since the screen line is composed of a plurality of straight wire rods arranged side by side in a rear-facing cantilever manner, it is received by the screen line. The processed material is easy to slide back and forth, and when the processed material is lifted and transferred by moving the sieve line upward and backward, the processed material slides relatively backward due to inertia, and a sufficient backward feed function is exhibited. May not be.

  Since long gaps are formed between the parallel sieve lines that are opened rearward and rearward, long straw scraps in a front-and-back orientation are easy to fall, and the grains and straw scraps are sorted and separated forward and backward. The function may not be fully exhibited. And, as the time during which the processed material stays on the sieve line becomes longer, longer straw scraps are likely to fall, and the function of sorting and separating grains and straw scraps will be reduced.

  The present invention has been made paying attention to such a point, and the processed product that has been oscillated and transferred by the front grain pan is quickly separated into grains and straw scraps, and the subsequent sorting is performed. The main purpose is to increase sorting efficiency and sorting accuracy in the process.

According to a first aspect of the present invention, the threshing apparatus is configured such that the threshing processed product dropped and supplied from the handling chamber is oscillated and moved backward by a swaying sorting case to screen and screen by the sorting air from the blower. In the dynamic sorting structure,
The front part of the swing sorting case is provided with a corrugated front gren pan that receives the processed material leaked from the front part of the receiving net and swings and moves rearward. A porous sorter that has a chaff sheave for coarse sorting over a range and sifts and sorts the processed material transferred in the front grain pan is extended from the rear end of the front grain pan to the rear cantilever. It is characterized by.

  According to the above configuration, the processed material leaked from the front half of the receiving net is received by the front gren pan and oscillated backward, and during this time, light straw scraps and heavy grains differ in specific gravity between the upper and lower layers. Selected. The lower grains and fine straw scraps that reach the end of the front grain pan immediately pass through the sorting body and fall downward, and the straw scraps that do not pass are placed on the sorting body and loosened while being swung back and forth. The contained grains are sorted and dropped. Here, since the sorting body is formed in a porous shape, the placed straw scraps are moderately caught on the hole edge of the sorting body and are quickly oscillated and transferred.

  Therefore, according to 1st invention, the processed material rock | fluctuated and transported by the front grain pan is rapidly separated into grains and straw scraps, and the sorting efficiency and sorting accuracy in the subsequent sorting steps are increased. It is particularly effective.

According to a second invention, in the first invention,
The said selection body is comprised with the crimp net | network.

  According to the above configuration, the sorting body is formed by knitting vertical and horizontal wires in a lattice shape to form a large number of leakage holes. The transfer function can be enhanced.

According to a third invention, in the first or second invention,
Blower means for supplying the sorting air from below to the sorting body is provided.

  According to the above configuration, the sorting wind is supplied to the front part of the sorting body from below, so that the dust contained in the grains falling from the front part of the sorting body is blown off and placed on the sorting body and shaken. The workpiece to be moved and moved is lifted by the sorting air from below and easily transferred to the rear.

A fourth invention is the invention according to any one of the first to third inventions,
A guide plate is installed on the upper surface of the front glen pan so as to diffuse and move the processing object placed and transferred rearward in the lateral width direction, and the guide plate is extended above the sorting body. is there.

  According to the above configuration, the unevenness of the processed material that leaks through the receiving net, the reduction of the second material, etc., and the unevenness of the processed material on the front grain pan are diffused and uniformed with the backward rocking transfer. can do. Moreover, the diffusion function continues to be exerted on the sorting body connected to the rear end of the front grain pan, and is effective in improving the sorting efficiency and sorting accuracy in the subsequent sieve sorting process.

A fifth invention is the fourth invention, wherein:
The guide plate is provided so as to extend from the rear end of the sorting body, and the lower end side of the extended guide plate portion is extended to near the upper surface of the chaff sheave.

  According to the said structure, the processed material diffusion function by a guide plate will be exhibited also on a chaff sheave, and the said effect in 4th invention is promoted.

A sixth invention is the invention according to any one of the first to fifth inventions,
Between the chaff sheave and the granular sieve for the fine sorting provided in the swing sorting case below the middle sheave line is disposed in a cantilever direction to receive the processed material that has leaked the chaff sheave. is there.

  According to the above configuration, the processed material leaked from the front part of the chaff sieve is fed into the middle sieve line, and the grains are leaked from the middle sieve line and supplied to the front part of the lower sieve. Straw debris caught on the wire is sent backward and supplied to the rear of the Glen sieve. As a result, grains and straw scraps are separated back and forth in the Glen sieve, resulting in high sorting accuracy.

In a sixth aspect based on the sixth aspect,
Blowing means is provided for supplying a sorting air flowing backward between the chaff sheave and the middle sieve line and between the middle sieve line and the grain sieve.

  According to the above configuration, the dust contained in the grains leaking from the middle sieve line is blown backward, and the backward feeding of the straw scraps dropped and discharged from the rear end of the middle sieve line is promoted, and the sixth invention This promotes the above effect.

  FIG. 1 shows a longitudinal side view of a threshing device mounted on a self-removing combine. This threshing device receives a side-cutting harvested cereal mash that has been transported from a left-side reaping part outside the figure with a feed chain 1 and inserts the head part into the handling chamber 2 from the left side to the right side in the figure. The threshing process is performed by the handling cylinder 3 that is pivotally supported horizontally in the front and rear in the handling chamber 2.

  In the handling chamber 2, the processed material separated from the cereal grains is selected by the receiving net 4 stretched along the lower part of the handling chamber 2, and the processed material that has leaked the receiving net 4 is disposed below the handling chamber 2. While being dropped and supplied to the first half of the sorting unit 5, the processed material that has not leaked through the receiving net 4 is unloaded from the dust feed port 6 at the end of the handling chamber and dropped and supplied to the front and rear intermediate parts of the sorting unit 5. The processed material dropped and received is received by a swinging and sorting case 7 which is long in the front and rear, and is sieved while being swung and conveyed backward (rightward in FIG. 1), and the main hot pot 8 and the front and rear auxiliary hot pots 9 and 10 are selected. The grain (No. 1) is collected in the No. 1 recovery unit 11 installed in front of the lower part of the sorting unit, and the No. 2 item such as the grain with branch is placed in the rear. Each is collected by the installed second collection unit 12.

  The swing sorting case 7 is reciprocated back and forth and up and down by an eccentric drive mechanism 13, and includes a front grain pan 14, a rough sorting chaff sheave 15, a stroller 16, a loosening plate 17, and a middle sieve line 18. And a sorting member such as a fine sieve 19 for fine sorting.

  As shown in FIG. 2, the front gren pan 14 disposed above the foremost part of the swing sorting case 7 is formed of a corrugated plate material having a sawtooth cross-sectional shape, and the processed material leaked from the front half of the receiving net 4. Is received by the front gren pan 14 and is oscillated and moved backward. During this time, light straw scraps and heavy grains are sorted into two layers of specific gravity difference.

  From the rear end of the front gren pan 14, a coarse screening body 20 extends rearward. The lower grains and fine straw scraps that have reached the end of the front grain pan 14 immediately pass through the sorting body 20 and fall downward, and the straw scraps that do not pass are placed on the sorting body 20 and oscillated backward. While being loosened, the contained grains are separated and dropped. The sorting body 20 is formed of a crimp net knitted by crossing steel wires vertically and horizontally, and the placed straw scraps are appropriately hooked on the sorting body 20 and quickly oscillated and transferred.

  A pair of front and rear guide plates 21 are provided on the upper surface of the front glen pan 14 from the vicinity of the right end of the swing sorting case toward the rear. As shown in FIGS. 4 and 6, these guide plates 21 are provided on the right side of the machine body (the side of the grain head), and the left side of the machine body (the side of the grain culm stock) is transferred to the processed product. The guide plate 21 is extended to the upper side of the sorting body 20 so that the diffusion function is exhibited even during the rear conveyance by the sorting body 20. It is like that. In addition, the bias of the processed material in the front gren pan 14 is biased toward the right side of the machine body (the grain tip side) as the handling barrel 3 rotates from the strainer side toward the tip side. This is because there is a tendency to leak through the receiving net 4 and, as will be described later, the second collected and collected product is reduced and supplied from the right side of the machine body to the front of the swing sorting case 7.

  The chaff sheave 15 is constructed in a range extending from the lower part of the rear end of the front glen pan 14 to the rear part of the dust feed port 6, and is configured by arranging a large number of lip plates 15a in parallel at a predetermined interval in the front-rear direction. Yes. Each lip plate 15a is pivotally supported so as to be able to swing back and forth around the upper end fulcrum, and its lower end is pivotally connected to an operation link 15b which is long in the front and rear, so that the position of the operation link 15b is changed back and forth. Thus, the angle of each lip plate 15a is changed, the opening degree of the leakage gap formed between the front and rear lip plates 15a is increased or decreased, and the leakage degree of the processed material is changed and adjusted. .

  The chaff sheave 15 leaks from the processed product (mainly grains) that has passed through the sorting body 20, the processing product that has fallen from the end of the sorting body 20 (mainly grain or bran scraps with branch stems), and the latter half of the receiving net 4. The processed material is received, and sieve screening is performed while swinging and moving backward. In this case, when the amount of the processed material is large, the operation link 15b is moved and adjusted rearward to increase the opening, and the processed material is efficiently leaked by promoting leakage of the processed material. When the amount of the processed material is small, the operation link 15b is moved and adjusted forward to reduce the opening degree, and the leakage accuracy of the waste waste is reduced as much as possible to increase the sorting accuracy.

  The loosening plate 17 is constructed by standing a plurality of vertical plate members with a large left and right spacing below the dust feeding port 6 and having a lower end portion made of a corrugated plate material having a sawtooth cross-sectional shape. 22 and a plurality of sieve lines 23 are extended from the rear end of the feed plate 22 in a cantilevered manner. Further, a processing rotating body 27 that faces the terminal portion of the sieve wire 23 from above is horizontally placed behind the dust feeding port 6.

  The processed material dropped and supplied from the dust delivery port 6 without leaking the receiving net 4 is first received by the loosening plate 17, and the processed material in a lump is loosened by being shaken on the loosening plate 17 group. It is. As the lump of the processed material is loosened, the contained grains and the grains with the branch branch are separated and sent backward by the feed plate 22 and fall from between the sieve lines 23. The lump of the processed material sent on the sieve line 23 without being loosened is forcibly loosened under the rotational stirring action of the treatment rotating body 27.

  The Strollac 16 is configured by arranging a plurality of vertical plate members whose upper sides are formed in a sawtooth shape in parallel on the left and right sides, and extends rearward from the vicinity of the end portion of the chaff sheave 15 in a cantilevered manner. The Strollac 16 swings the straw waste discharged from the end of the chaff sheave 15 and the waste waste discharged from the end of the sieve wire 23 for unwinding toward the dust outlet 24 at the rear end of the sorting unit. While being transported, the second thing such as grain with branch stem contained in straw scraps is separated and dropped.

  The middle sieving line 18 is arranged in a cantilevered manner from the front plate 7 a provided on the front surface of the swing sorting case 7 at the upper and lower intermediate positions of the chaff sheave 15 and the Glen sheave 19. The processed material that has been leaked is fed to the middle sieve line 18 via the feed plates 25 and 26 having a sawtooth cross-sectional shape, and the grains are leaked from the middle sieve line 18 and supplied to the front portion of the grain sieve 19. After the straw scraps caught on the middle sieve line 18 are sent rearward, they are supplied to the rear part of the grain sieve 19. As a result, the grains and straw scraps are separated back and forth in the Glen sieve 19 to provide high sorting accuracy.

  The grain sieve 19 is arranged along the lower end side of the swing sorting case 7, and is composed of a fine-mesh crimp net or a resin-molded net that can leak grain. The grain sieve 19 is arranged from the lower part of the middle sieve line 18 to the vicinity of the lower part of the rear end of the chaff sieve 15, and the grains passing through the middle sieve line 18 and the latter half part of the chaff sieve 15. The processed material that has been leaked is received and sieved, and the grain is leaked to the No. 1 recovery unit 11 and the second thing such as the grain with a branch is fed backward.

  The No. 1 recovery unit 11 is disposed below the front portion of the grain sieve 15, and is configured by disposing a lateral feed screw 31 inside a lateral receiving rod 30. The fine particles collected in the receiving bowl 30 are laterally fed rightward by the transverse feed screw 31 and carried out of the machine, and are lifted by a screw type longitudinal feed device 32 arranged on the right outside of the threshing device, It is input and collected in a grain tank not shown.

  A sink plate 33 that is inclined forward and downward is connected to the rear end portion of the receiving bowl 30 in the first collecting unit 11 and is a resin-made sink sheet that extends forward and downward from the lower portion of the swing sorting case 7. The free end portion 34 is slidably supported on the upper surface of the sink plate 33. As a result, the grains that have leaked from the latter half of the grain sieve 15 are received by the sink sheet 34 that reciprocates back and forth together with the swinging sorting case 7 and quickly flow down while being shaken. It comes to flow.

  The second collection unit 12 is disposed at a lower position of the Strollac 16 and is configured by disposing a lateral feed screw 37 inside a laterally receiving receptacle 36. The second item collected in the receiving tray 36 is laterally fed to the right side of the machine body by the lateral feed screw 37 and once carried out of the machine, and then by a screw-type reducing and conveying device 38 arranged on the right outside of the threshing device. It is conveyed upward and scattered and conveyed forward from its upper end.

  A sink plate 49 inclined forward and downward is connected to the rear end portion of the receiving bowl 6 in the second collecting portion 12 and is made of a resin that extends forward and downward from the rear bottom plate 7b of the swing sorting case 7. The free end portion of the flow sheet 48 is slidably supported on the upper surface of the flow plate 5. As a result, the second item that has leaked from the Strollac 16 and has flowed through the rear bottom plate 7b is received by the flow sheet 48 that reciprocates back and forth together with the swing sorting case 7, and quickly flows down while being shaken. It flows into the receiving bowl 36 through the sink plate 35.

  As shown in FIG. 5, the second item scattered and conveyed forward from the upper end of the reduction conveying device 38 is guided by a duct 39 and is returned from a reducing port 40 formed on the front right side of the sorting unit 5. It is supplied and supplied to the front part of the swing sorting case 7 so as to be subjected to the swing sorting process again.

  As shown in FIG. 2, the main hot pot 8 is housed in a hot pot case 41 disposed in front of the first collecting unit 11, and is rotated counterclockwise in the drawing, Sorting air is supplied to the two layers from the upper and lower air vents 42a, 42b formed at the lower rear side toward the rear. The sorting air supplied from the upper air blowing port 42a is blown from below toward the first half of the grain 15 to blow up and separate the fine dust contained in the processed material on the grain sieve, and the fine dust falling along with the grains Blow away. The sorting air supplied from the lower air blowing port 42b blows away the dust floating near the entrance of the first collecting unit 11 backward.

  The front sub-carp 9 is composed of a cross-flow fan arranged at the front upper part of the main carp 8 and the generated sorting air is a mesh-like shape formed at the upper and lower parts of the front part of the swing sorting case 7. Are passed through the vents 43a, 43b, 43c into the swing sorting case 7.

  The upper vent 43a is opened toward the front part of the sorting body 20, and the processing object that is oscillated and transferred by the sorting air from the vent 43a being supplied to the front part of the sorting body 20 from below. As a result, a part of the dust contained in the container is blown away, and the processing object that is placed on the sorting body 20 and is oscillated and transferred is lifted by the sorting air from below and easily transferred backward.

  The upper and lower middle vents 43b are opened between the chaff sheave 15 and the middle sieve line 18, and the sorting air sent from the vents 43b is contained in the processed material supplied to the middle sieve line 18. As well as helping to blow backwards of straw scraps.

  The lower vent 43c is opened between the middle sieve line 18 and the grain sieve 19, and the sorting air sent from the vent 43c blows off the dust contained in the processed product supplied to the grain sieve 19. Assists backward feeding of straw scraps.

  The rear sub-carp 10 is composed of a cross-flow fan arranged between the first collection unit 11 and the second collection unit 12, and the generated sorting air is supplied obliquely rearward and upward from the blower port 44, Fine straw scraps and dust contained in the processed material dropped and supplied to the second recovery unit 12 are blown out and discharged.

  If the grains contained in the processed product dropped from the rear part of the Strollac 16 collide with the rear bottom plate 7b of the swinging sorting case 7 and jump up, there is a risk that the grain will be discharged out of the machine by the sorting wind blown up rearward. In order to prevent this, a corrugated plate 47 having a triangular cross-sectional shape along the lower direction of the process flow is attached to the inner surface of the rear bottom plate 7b, so that the grain is prevented from being greatly bounced up.

  Behind the handling chamber 2, a waste straw transporting device 45 that transports the cereal husk (waste straw) inherited from the feed chain 1 to the rear is provided, and below the waste straw transporting path. A dust exhaust fan 46 consisting of a cross flow fan is placed horizontally. This dust exhaust fan 46 forcibly sucks the dust and straw scraps blown out from the dust delivery port 6 at the end of the handling chamber and the rear part of the sorting unit 5 by the sorting wind to forcibly rearward the fuselage. To discharge.

  [Another Example]

  (1) As the sorting body 20, a steel plate in which a large number of circular, rectangular or other shapes of leakage holes are punched and formed, or a large number of arbitrary shapes of leakage holes are integrally formed in parallel in the vertical and horizontal directions. It can also be constituted by a resin net. In this case, the first half of the leakage hole group can be made larger than the latter half of the leakage hole group, and the fall of the grains in the first half of the sorting body 20 can be promoted. In addition, when the sorting body 20 is resin-molded, it is possible to transfer the straw scraps more quickly by forming a conveying projection having a sawtooth shape on the side surface on the upper surface thereof.

  (2) As shown in FIGS. 7 and 8, the guide plate 21 is provided extending from the rear end of the sorting body 20, and the lower end side of the extended guide plate portion 21 a is extended to the vicinity of the upper surface of the chaff sheave 15. Also good. According to this, it is possible to achieve uniform diffusion of the processed material even at the front portion of the chaff sheave 15.

Longitudinal side view of threshing device Vertical side view showing the first half of the sorting section Vertical side view showing the second half of the sorting section Top view of swing sorting case Partially cutaway front view of threshing device Perspective view showing the front part of the swing sorting case The top view which shows the front part of the rocking | swiveling selection case in another Example Longitudinal side view showing the front part of the swing sorting case in another embodiment

Explanation of symbols

2 Handling Room 4 Receiving Net 7 Swing Sorting Case 14 Front Glen Pan 15 Chaff Sheave 18 Interrupted Sieve Line 19 Glen Sheave 20 Sorting Body 21 Guide Plate 21a Extension Guide Plate Portion

Claims (7)

In the oscillating sorting structure of the threshing apparatus configured to screen and screen the threshing processed product dropped and supplied from the handling chamber to the rear by the oscillating sorting case and screen the sieving by the sorting air from the blowing means,
The front part of the swing sorting case is provided with a corrugated front gren pan that receives the processed material leaked from the front part of the receiving net and swings and moves rearward. A porous sorter that has a chaff sheave for coarse sorting over a range and sifts and sorts the processed material transferred in the front grain pan is extended from the rear end of the front grain pan to the rear cantilever. Oscillating sorting structure of threshing device characterized by the above.   2. A rocking sorting structure for a threshing apparatus according to claim 1, wherein the sorting body is constituted by a crimp net.   The swing sorting structure of the threshing apparatus according to claim 1, further comprising a blowing unit that supplies a sorting wind to the sorting body from below.   A guide plate is provided on the upper surface of the front glen pan so as to diffuse and move the workpiece placed and transferred rearward in the lateral width direction, and the guide plate is extended above the sorting body. The rocking | fluctuation sorting structure of the threshing apparatus as described in any one of 1-3.   The swing sorting structure for a threshing apparatus according to claim 4, wherein the guide plate is provided so as to extend from the rear end of the sorting body, and the lower end side of the extended guide plate portion is extended to near the upper surface of the chaff sheave.   A middle stage sieve line for receiving a processed material that has leaked the chaff sheave is disposed in a rearward cantilevered manner between the chaff sheave and a fine sieve for sieve that is provided in the swing sorting case below the chaff sheave. The rocking | fluctuation sorting structure of the threshing apparatus in any one of 1-5.   The swing sorting structure of the threshing apparatus according to claim 6, further comprising a blowing unit that supplies a sorting wind that flows backward between the chaff sheave and the middle sieve line and between the middle sieve line and the grain sieve.

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