JP4770555B2 - Threshing device - Google Patents

Description

  The present invention relates to a threshing apparatus used for a combine, a harvester, or the like, and belongs to the technical field of agricultural machinery.

Conventionally, as disclosed in, for example, Patent Document 1, on the terminal side of a handling chamber, dust disposal products generated in the handling chamber are guided and dropped into a sorting chamber below the handling chamber. A dust exhaust passage is provided for reprocessing by sending it into the dust exhaust treatment cylinder chamber provided in the interior.
JP 2003-125635 A

In the configuration of the conventional dust discharge path, a large amount of sawdust is carried around, so that there is a problem that a sufficient recovery processing effect of the small grains cannot be obtained and the fourth loss frequently occurs.
This invention is to eliminate the above-mentioned problems, and effectively performs dust removal processing such as sawdust on the terminal end side of the handling chamber, in particular, enhances the recovery effect of the small grains in the dust removal path, and collects The purpose is to raise the rate.

The present invention has taken the following technical means in order to solve the above-described problems.
That is, the inventions of claim 1, and thresher (2) side plates in the front side plate after the rear end of the threshing chamber (3) which axially rack (8) and rear side plates (8) (6) during, threshing chamber (3) below the sorting chamber (20) and the dust-exhaust processing cylinder front of the first dust-exhaust path you communicated to the starting end of the dust-exhaust treatment chamber (24) and axial rack (25) ( 9) back and forth with said first dust-exhaust path (9) of the longitudinal width substantially equal to or than the rear side of the narrow even second dust-exhaust path (10), sandwiching the partition resistance plate (7) The first dust discharge path (9) is configured to have a continuous first conveyance guide plate (9a) with a filter hole (9b) opened, and the second dust discharge path (10) is a dust discharge treatment chamber. The (25) side second conveyance guide plate (10a) and a plurality of conveyance guide bodies (10b) arranged at predetermined intervals along the rotation direction of the handling cylinder (2), and the conveyance guide body (10b) ) Projecting in a cantilevered manner from the cutting resistance plate (7) to the rear, the upper surface of the conveyance guide body (10b) in the direction of rotation of the cylinder is moved toward the rear end of the conveyance guide body (10b). The threshing apparatus is characterized in that it is inclined so that the distance between the left and right is widened .

A large amount of dust exhausted material generated in the handling chamber (3) reaches the end of the handling chamber (3) and flows downward through the first dust removal path (9) in the rotation direction of the handling cylinder (2). It is divided into the one that is guided and dropped into the chamber (20) and the one that is introduced into the dust chamber (25) on one side of the handling chamber ( 3 ) , and is treated in the first dust passage ( 9 ) . The dust that cannot be removed is introduced into the dust treatment chamber ( 25 ) . In the second dust-exhaust path (10), with sticks grains thus be scraped off in handling the teeth of the rotating threshing drum (2) is guided fall below the sorting chamber (20), untreated generated here Scraps and the like containing objects enter the dust treatment chamber (25) together with a part of the dust treatment material that has passed over the partition resistance plate (7) from the first dust removal path (9) on the front side. It will be sent and reprocessed.

In the second dust-exhaust path (10), because it is guided by a plurality of conveyance guide member arranged at predetermined intervals (10b), filtering action of sticks grains scraped is performed smoothly, the Warakuzu no clogging, will be guided to smoothly by the rotation of the threshing drum (2) to the dust-exhaust processing chamber (25) in the uptake action of dust-exhaust processing cylinder (24) can be performed satisfactorily.

The invention according to claim 2 is characterized in that the left and right widths of the gap (10c) formed between the respective transport guide bodies (10b) are configured so as to become wider toward the stocker side portion of the threshing cereal. The threshing apparatus according to claim 1.

According to a third aspect of the present invention, the lateral width of each of the transport guide bodies (10b) is greater than the lateral width of the horizontal rail portion (9c) provided between the filtration holes (9b) of the first transport guide plate (9a). The threshing apparatus according to claim 1 or 2, wherein the threshing apparatus is widened.

According to a fourth aspect of the present invention, a scattering prevention cover body (31) is provided above the intake port to the dust disposal cylinder (24) side in the second dust removal path (10), and the scattering prevention cover body (31 4 and the second conveyance guide plate (10a), the partition resistance plate (7) and the rear plate (8) are connected to each other. Threshing equipment.

When Ru good to inventions of 請 Motomeko 1 wherein, in the terminal end of the threshing chamber (3), to communicate with the start of the threshing chamber (3) below the sorting chamber (20) and the dust-exhaust processing chamber (25) The first dust discharge path (9) and the second dust discharge path (10) that is substantially equal to or narrower than the front-rear width of the first dust discharge path (9), and the partition resistance plate (7) Since the first dust discharge path (9) is disposed between the front and rear sides, a large amount of dust is generated in the handling chamber (3), and the second dust discharge path (10) It is possible to perform mainly the processing of small grains, and while sharing the processing of the soot waste in both paths, only the soot that is not guided and dropped into the lower sorting chamber (20) is guided into the dust disposal chamber (25) . Can be processed. Therefore, since the dust dust discharge guidance process and the small grain recovery process can be performed effectively, the fourth loss can be reduced and the recovery rate can be improved.

In the second dust-exhaust path (10), because it is guided by a plurality of conveyance guide member (10b), not only filtering action of sticks grains scraped is carried out smoothly, even flow of Warakuzu a smoothly, it will be surely guided to the clean room processing chamber (25) by rotation of the threshing drum (2), it is possible to increase the sticks particle collecting effect as well as clean room guidance processing effect of Warakuzu of It was. That is, the second dust discharge path (10) has a plurality of transfer guides arranged at predetermined intervals along the rotation direction of the second transfer guide plate (10a) on the dust removal processing chamber (25) side and the handling cylinder (2). Since it was formed from the body (10b), the grain is filtered from the gaps between the transport guide bodies (10b), and along the upper surfaces of the transport guide bodies (10b) and the second transport guide plate (10a). It is possible to smoothly feed the dust to the dust disposal chamber (25).

In addition, each conveyance guide body (10b) is arranged such that the upper surface of the conveyance guide body (10b) projecting in a cantilevered manner from the partition resistance plate (7) toward the rear end is closer to the rear end. As the threshing cereals are moved backward in the second dust discharge path (10), the filtration space to the lower sorting chamber (20) is expanded, The 4th thing etc. removed from the cocoon are quickly separated from the cereal cocoon, and the 4th loss can be reduced.

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the lateral width of the gap portion (10c) formed between the transport guide bodies (10b) is such that the tip side ( Since the dust disposal chamber 25 side is narrower and the stock side (feed chain side) is wider, it is possible to promote the leakage of small grains on the stock side.

According to invention of Claim 3, in addition to having the effect of the invention of Claim 1 or Claim 2 above, in the first dust discharge path (9), the horizontal beam portion (between the filter holes (9b)) ( 9c), the left and right width of each guide body (10b) of the second dust discharge path (10) is made larger than that of the horizontal beam portion (9c), while the left and right width of 9c) is narrowed to enlarge the filtration area as much as possible. By increasing the width, when the teeth of the barrel (2) enter the inside of the cereal, it prevents the cereal from escaping downward, causing unhandled collection unevenness and reducing the efficiency of removing the grain. can do.

According to the invention of claim 4, in addition to the effect of the invention of any one of claims 1 to 3, the anti-scattering cover body (31) is provided between the partition resistance plate (7) and the rear side plate (8). ) And the second conveyance guide plate (10a), the rigidity is enhanced, and the strength against the upper and lower torsion is improved even if the lower portion of the rear plate (8) is opened below the handling cylinder (2). It can be secured.

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, the structure of the combine shown in FIG. 1 will be described.
On the vehicle body provided with the traveling crawler W, a reaping device H that can be moved up and down is mounted on the front portion, and a threshing device (threshing portion) D is mounted on the rear portion. An operating part with a cabin C is installed on the lateral side of the cutting part H, and a Glen tank G is equipped behind it.

Next, the configuration of the threshing apparatus D will be described. A receiving net 4 is stretched along a lower half circumference between a front side plate 5 and a middle side plate 6 of a handling chamber 3 in which a handling cylinder 2 with a tooth handling handle 1 can be pivoted. Between the middle plate 6 and the rear plate 8 on the terminal side of the handling chamber 3, a first dust discharge path that communicates with the sorting chamber below the handling chamber and the start end of the dust treatment chamber in which the dust treatment cylinder is mounted as an interior shaft. 9 and a second dust discharge path 10 that is substantially equal to or narrower than the width of the first dust discharge path is provided so as to be arranged on the front and rear sides of the partition resistance plate 7. The first dust removal path 9 on the front side has a configuration in which a filtration hole 9b is opened in a continuous conveyance guide plate (first conveyance guide plate) 9a, and the second dust removal path 10 on the rear side is a dust removal treatment. A chamber-side transport guide plate (second transport guide plate) 10a and a plurality of transport guide bodies 10b arranged at predetermined intervals along the rotation direction of the cylinder, and a gap between the guide bodies 10b. Grains are filtered from the part 10c, and the feed guide action of the sawdust to the dust disposal chamber along the upper surfaces of the guide bodies 10b... And the guide plate 10a can be smoothly performed. Both the first conveyance guide plate 9a and the second conveyance guide plate 10a on the dust removal processing chamber side have the same cross-sectional shape, and the extended line of the end of the communication port on the dust removal treatment chamber side extends from the axis of the dust collection treatment cylinder 24. By setting the lower position, it is possible to easily send dust to the dust disposal cylinder.

  Further, as shown in FIG. 6, each guide body 10b of the second dust discharge path protrudes rearward from the partition resistance plate 7 in a cantilever manner, and the guide body 10b... The gap portion 10c is configured to become wider as the rear surface side (upper side) is inclined toward the rear end side, and as a result, the cereals are moved downward along the second dust discharge path. Since the filtration space on the swing sorting shelf 21 is expanded, the 4th item removed from the cereal can be quickly separated from the cereal and the fourth loss can be reduced. In this embodiment, the tip side (dust removal processing chamber side) is narrow and the stock side (feed chain side) so that the gap width of each gap portion 10c ... becomes L1 <L2 <L3 (see FIG. 8). It is so wide that it promotes the leakage of small grains on the stock market side. Further, in the first dust discharge path 9, the horizontal crosspiece 9 c that forms the filtration hole 9 b is narrowed to enlarge the filtration area as much as possible, whereas each guide body 10 b of the second dust discharge path 10 is expanded. The width of... Is wider than the horizontal crosspiece 9c, so that when the tooth-treating teeth enter the inside of the cereal, the cereal is evacuated downward to cause unhandled collection unevenness, and the efficiency of removing small grains. Prevents the decline.

9 Part 1 dust-exhaust path, while are constituted by continuous conveyance guide plates 9 a, the second dust-exhaust path 10 parts, strain base side of the culms - Place (Fi Dochien side) The stock base guide body 10d is provided, and the stock base guide body 10d, each transport guide body 10b,..., And the transport guide plate 10a form a discontinuous guide body configuration in a virtual arc shape centering on the handling cylinder axis. The arrangement is arranged. In addition, the stock guide body 10d has a bending point Q on the lower end side, the stock side is steeply inclined from the bending point to improve the flow of sawdust, and the tip side enters the sorting chamber from the bending point, It is comprised so that it may go to the guide body 10b side.

  A handling cylinder cover 13 covering the upper part of the handling chamber 3 is configured to be swingable around an axis parallel to the handling cylinder axis direction. Further, on the side of the handling chamber 3, there are provided a feed chain 14 for clamping and transporting the cereal stock side along the handling port, and a clamping rail 14 a facing the upper side. ing. The sandwiching rail 14a is mounted on the barrel cover 13 side and swings and opens together with the cover. There is a cereal supply port 15 on the front side of the handling room, a cereal discharge port 16 is opened on the rear side of the handling room, and the grain scattering prevention body 17 made of an elastic material such as cloth or rubber is provided from the rear side plate 8. Is provided to hang down.

  In the sorting chamber 20 below the handling chamber 3, a swing sorting shelf 21 is erected, and the filtered material from the handling chamber receiving network 4 and the filtered material from the dust passages 9 and 10 are received and screened. It is said.

  On the side opposite to the feed chain 14 side of the handling chamber 3, a second processing chamber 23 in which a second processing cylinder 22 is pivotally mounted is provided side by side. Above, a dust removal treatment chamber 25 in which a dust removal treatment cylinder 24 is pivoted is provided. The dust removal treatment cylinder 24 receives the treatment products from the first and second dust removal passages 9 and 10 of the handling chamber 3 and conveys them to the rear, and the second treatment cylinder 24 is treated with the second reduction device 30. The second processed product from No. 1 is processed while being conveyed forward. An intake spirer 26 is provided at the start end of the dust removal treatment cylinder 24 over the communication port width corresponding to the first and second dust removal passages 9 and 10, and the taken-in treatment object is quickly directed toward the rear of the treatment chamber. It is configured to send dust.

  An anti-scatter cover body 31 is provided above the intake port on the dust removal treatment cylinder 24 side of the second dust removal path 10 so that the dust can be satisfactorily taken in from the handling chamber side. And this scattering prevention cover body 31 is comprised so that it may connect over the partition resistance board 7 and the rear side board 8. FIG. Even if the dust removal path portion 10 between the partition resistance plate 7 and the rear side plate 8 is connected by the scattering prevention cover body 31 and the conveyance guide plate 10a, the rigidity is increased and the rear side plate is opened at the lower part of the handling cylinder. Strength against vertical twisting can be secured.

  As for the take-in angle of the processed material into the dust removal treatment chamber 25, the take-in angle α1 (see FIG. 7) of the first dust discharge path 9 is greater than the take-in angle α2 (see FIG. 8) of the second dust discharge path 10. It is getting bigger. In the first dust discharge passage 9 part, the intake angle is increased so that the processed material guided from the front part of the chamber is guided to the dust chamber without being stagnated and sent to the rear, This prevents an increase in the handling room load. On the contrary, in the second dust discharge passage 10 part, mainly the recovery of the small grains and the recovery of the unhandled grains are performed, and the amount of processing guided to the dust removal processing chamber is small, so the scattering prevention cover body 31 The installation angle is reduced by installation.

  In the dust processing chamber 25, a dust feeding lead plate 28 for guiding the dust processing material introduced from the dust paths 9 and 10 toward the rear of the processing chamber is inclined at a predetermined angle in the feeding direction. . As shown in FIG. 12, the dust feed lead plate 28 has a lead plate 28a corresponding to the take-in spirer 26 on the start end side of the dust removal processing cylinder 24, and a terminal end (rear end) from an intermediate portion of the dust removal treatment cylinder. The lead plate 28b ... corresponding to the treated tooth groups 27 ... planted toward the side, and the dust feed lead when the dust feed angle? 1 of the dust feed lead plate 28a ... It is larger than the dust feeding angle θ2 of the plates 28b. The dust feed angle θ3 of the take-in spiler 26 is substantially the same angle as the dust feed angle θ1 of the dust feed lead plate 28a. Therefore, the processed material taken in by the cooperative action of the taking-in spyler 26 and the dust-feeding lead plate 28a can be sent quickly toward the rear of the processing chamber without stagnation.

  In the embodiment shown in FIGS. 13 and 14, the conveyance guide plate 9a of the first dust discharge path 9, the conveyance guide plate 10a of the second dust discharge path 10, and the respective conveyance guide bodies 9b are integrally formed, and from above. Since the partition resistance plate 7 is provided, it is easier to manufacture and can be implemented at a lower cost as compared with the case where each is formed separately.

  Further, as shown in FIG. 15, the partition resistance plate 7 extends to the communication port to the dust removal treatment chamber 25 and does not extend to the opposite surface side of the dust removal treatment cylinder 24 and to the upper side thereof. It expands and the uptake | capture effect by the uptake | capture spiler 26 becomes favorable. Furthermore, the partition resistance plate 7 provides a lapping allowance with the tooth handle 1 at the cereal passage portion below the handle cylinder 2 so that the processed material guided to the first dust discharge path is on the second dust discharge path side on the rear side. The dust can be efficiently sent into the dust disposal chamber while preventing the dust from being fed into the chamber. In addition, if the lapping margin is set to be the largest in the vicinity of the dust removal processing cylinder from the rotation direction of the handling cylinder, the above effect is further enhanced.

  Further, as shown in FIG. 15, the partition resistance plate 7 is configured not to protrude downward from the lower surface of the transport guide plate 9a within the width of the sorting chamber 20, so that the transport guide plate and the swing sorting shelf 21 Even if the vertical interval is narrow, it becomes difficult to cause a problem that the object to be sorted transferred from the swing sorting shelf or the processed substance to be filtered from the dust path part is caught or stagnated. Further, by providing the partition plate 12 on the inner surface of the handling cylinder cover 13 on the same position extension line as the partition resistance plate 7, the stock raised on the upper side of the handling cylinder is difficult to remove at the end of the handling chamber. It is possible to prevent the fourth loss from entering.

  In addition, in the embodiment shown in FIG. 16, each conveyance guide body 9b is inclined (inclined) toward the rear side in the dust feeding direction (handling cylinder rotation direction) and in the dust feeding axis direction on both the upper and lower dust feeding sides. By configuring so that the corners S1, S2), it is possible to prevent the transported culm from being caught or broken, the culm is stretched, and the tooth handling works well into the culm, And the filtration space between each guide body can be expanded, the grain removed from the cereal can be quickly dropped on the lower swing sorting shelf, and the fourth loss can be reduced.

  The swing sorting shelf 21 is configured to receive the processed product after the threshing process and screen it while swinging and transferring, as shown in FIG. 2, from the upper side in the sorting direction, the transport shelf 21a, the chaff sheave 21b, the straw -It is set as the structure which has arrange | positioned in order of the rack 21c and has arrange | positioned the glenive 21d below the said chaff sheave 21b.

  In addition, the Kara 33, the first transfer spiral 34, the second transfer spiral 35, and the suction dust fan 36 are provided on the upper side below the swing sorting shelf 21 in order from the upper side in the sorting direction. The chamber 20 is configured.

Combine side view Left sectional view of threshing device Right side view of main parts of threshing device Top view of main parts of threshing device Left side view of main part of threshing device Top view of the main part Cutting front view of main part of threshing device Cut front view of the main part Cut back view of the main part Perspective view of main part of threshing device Left cross-sectional view of the main part of the dust removal treatment device Right sectional view of the main part The perspective view which shows another Example of a threshing apparatus. Perspective view of the main part Cutting front view of threshing device Top view of the main part of the threshing part

2 Handling cylinder 3 Handling room
6 Middle side plate 7 Partition resistance plate
8 Rear side plate 9 First dust passage
9a transport guide plate (first transport guide plate)
9b filter hole
9c horizontal crosspiece 10 second dust passage 10a conveyance guide plate (second conveyance guide plate)
10b transport guide body
10c gap 20 sorting room
21 Oscillating sorting shelf 24 Dust collection cylinder 25 Dust collection chamber
31 scattering prevention cover body

Claims (4)

Threshing drum between the side plates (6) in the front side plate after the rear end of the threshing chamber to the (2) and axial rack (3) (8) and rear side plates (8), threshing chamber (3) lower sorting chamber (20) and the dust-exhaust processing cylinder (24) the axial rack was dust-exhaust processing chamber and the front side of the first dust-exhaust path you communicating the starting end (25) (9), said first dust-exhaust path ( longitudinal width substantially equal to or than the rear side of the narrow even second dust-exhaust path 9) and (10), arranged before and after sandwiching the partition resistance plate (7), wherein the first dust-exhaust path ( 9) is configured such that a filtration hole (9b) is opened in a continuous first conveyance guide plate (9a), and the second dust discharge path (10) is a second conveyance guide plate (25) on the dust removal treatment chamber (25) side. 10a) and a plurality of transport guide bodies (10b) arranged at predetermined intervals along the rotation direction of the handling cylinder (2), and the transport guide body (10b) is rearward from the partition resistance plate (7). Towards Is projecting cantilevered, characterized in that the respective conveying guide body surface of the threshing drum rotary direction upstream side of (10b), is inclined so as to spread the right and left distance as the rear end side each of the conveying guide member (10b) Threshing device. The lateral width of each of the conveying guide member (10b) gap portion formed between (10c) is threshing apparatus according to claim 1, characterized in that a configuration consisting wider sites of strain base side of the threshing culms . The lateral width of each of the transport guide bodies (10b) is wider than the lateral width of a horizontal crosspiece (9c) provided between the filtering holes (9b) of the first transport guide plate (9a). The threshing apparatus according to claim 1 or 2. A scattering prevention cover body (31) is provided above the intake port to the dust removal treatment cylinder (24) side in the second dust removal path (10), and the scattering prevention cover body (31) and the second transport guide plate The threshing apparatus according to any one of claims 1 to 3, wherein the partition resistance plate (7) and the rear side plate (8) are connected to each other by (10a).

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