JP2007312733A - Threshing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a threshing apparatus designed to recover free grains over a rack which stick into waste straws because there are many free grains over the rack which stick into the waste straws, consequently causing frequent occurrence of grain loss when grain culms are threshed in a threshing chamber in the threshing apparatus and the threshed waste straws are unloaded to the outside of a machine body. <P>SOLUTION: The threshing apparatus is composed and characterized as follows. A chamber 25 for recovering the free grains over the rack which stick into the waste straws is installed on the rear side of the threshing chamber 6 formed between a front side plate 5a and a post-middle plate 6b and between the post-middle plate 6b and a rear side plate 5b. A threshing cylinder 7 is extended even to the rear end in the chamber 25 for recovering the free grains over the rack which stick into the waste straws, axially supported and installed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  This is a threshing device of a technology in which a threshing chamber in which a handling cylinder for threshing cereals is pivotally installed, and a grain recovery chamber provided behind the threshing chamber.

  As shown in Japanese Patent Application Laid-Open No. 5-184230, a threshing chamber is provided between a front plate and a rear plate to support a handling cylinder for threshing cereals, and is provided at a transfer terminal in the threshing chamber. A discharge port is provided between the plate and the rear plate, and the unthreshed material that has not been threshed in the threshing chamber is supplied to the dust chamber from the discharge port. The threshing process is performed again by the dust collector.

Further, the threshing processed product threshed in the threshing chamber and the threshing processed product re-threshed in the dusting chamber are subjected to rocking sorting and wind sorting while falling to the lower part. Further, the rear side of the threshing chamber does not have a small grain collection chamber for collecting small grains.
JP-A-5-184230

  The grains that have been threshed and that do not have a grain recovery device that collects the grains that have been drained to the outside of the machine, and that are discharged to the No. 4 outlet that discharges the grains to the outside of the machine. Is a large amount, there is a lot of grain loss, and as the amount of threshing treatment (threshing efficiency) increases, the grain loss tends to increase rapidly, and it is intended to solve these problems. is there.

In order to solve the above problems, the present invention takes the following technical means.
For this reason, in the invention described in claim 1, the front plate (5 a) and the rear plate (6 b) in which the handle cylinder (7) in which a plurality of types of handle teeth (7 a) are implanted are pivotally supported. A threshing chamber (6) is provided between the threshing chamber (6), and on the right side of the threshing chamber (6), a dust exhaust cylinder (9a), a dust exhaust cylinder (9b) and the like mounted with a dust exhaust spiral plate (9b) 9) is provided with a dust removal chamber (8) that is pivotally installed, and the unthreshed product that has not been threshed in the threshing chamber (7) is disposed in front of the middle plate (6a) in the threshing chamber (6) In the threshing apparatus for supplying and processing the threshing supply chamber (6c) formed between the middle plate and the rear plate (6b) into the dust discharge chamber (8), the front plate (5a) and the rear plate (6b) ) And a rear side of the threshing chamber (6) formed between the rear plate (6b) and the rear side plate (5b), a small grain recovery chamber (25) is provided, Room ( 5) to the rear end portion of the is obtained by a threshing device, characterized in that provided to extend axially supported the threshing drum (7).

  When the harvested cereal meal is fed into the threshing chamber (6) of the threshing machine, the threshing chamber (6) provided between the front plate (5a) and the rear plate (6b) of the threshing chamber (6). The threshing process is carried out by the rotational drive of the handling cylinder (7) in which a large number of tooth handling teeth (7a) are installed. The threshing processed product that has been threshed is subjected to swing sorting and wind sorting while falling from the threshing chamber (6) to the lower part.

  The unthreshed product that has not been threshed in the threshing chamber (6) is a threshing supply formed between the front of the middle plate (6a) and the rear of the middle plate (6b). From the inside of the chamber (6c), the dust-removing spiral plate (9a) that is transported and supplied to the dust-removing chamber (8) provided on the right side of the threshing chamber (6) and pivotally supported in the dust-removing chamber (8) ) And rotation of the dust removal cylinder (9) equipped with a plurality of dust removal processing claws (9b) and the like, the threshing process is performed during the transfer toward the transfer end portion. The threshing processed product that has been rethreshed falls from the inside of the dust removal chamber (8) to the lower portion, and is subjected to rocking sorting and wind sorting at the same time as the threshing processed product falling from the inside of the threshing chamber (6) to the lower portion.

  Further, the threshing grains are threshed in the threshing chamber (6), and the threshing excretion discharged from the machine is formed between the front side plate (5a) and the rear side plate (6b), In the rear side of the threshing chamber (6), the inside of the small grain recovery chamber (25) formed between the rear plate (6b) and the rear plate (5b) is transferred to the outside of the machine. The grains etc. which are extended in the culling by the rotational drive of each handle (7a) of the handle cylinder (7) which is extended to the transfer end portion in the small grain recovery chamber (25) and supported by the shaft It is dropped directly from the small grain collection chamber (25), or is transferred from the small grain collection chamber (25) to the dust discharge chamber (8) to be removed, and the inside of the dust discharge chamber (8). While being transferred to the lower end of the transfer, the threshing processing product falling to the lower portion from the inside of the threshing chamber (6) and the wind selection are simultaneously performed.

  In invention of Claim 2, the inner diameter part (D1) of the middle board front (6a) provided in the said threshing chamber (6) and the outer diameter part (D2) of the said handling cylinder (7) are right upper ends. Is formed with a large gap (M1) substantially uniformly from the lower end to the left end, and the inner diameter (D3) behind the middle plate (6b) and the outer diameter part (D2) of the handling cylinder (7) are In addition, the space between the center (A) of the handling cylinder (7) at the time of supplying the right lower cereal husk and the tip (L1) position is provided at substantially equal intervals (M2), The threshing apparatus according to claim 1, characterized in that the space between the tip position (L1) at the time of supplying the right cereal cocoon and the upper left end portion is provided with a substantially uniform intermediate interval (M3). It is a thing.

  Of the handling cylinder (7) in which a large number of teeth (7a) are implanted in the threshing chamber (6) while being held and transferred into the threshing chamber (6). By rotational driving, it is pivotally supported in the threshing chamber (6) to be threshed, and a transfer resistance is applied to the cereal basket. The inner diameter (D1) in front of the middle plate (6a) and the outer diameter part (D2) of the handling cylinder (7) are formed with a substantially uniform large distance (M1) from the upper right side to the lower left side. Reduced resistance is provided.

  Further, the inner diameter (D3) after the middle plate (6b) and the outer diameter part (D2) of the handling cylinder (7) are the center of the handling cylinder (7) when supplying the cereal from the upper right side to the lower right side. Between (a) and the tip portion position (L1), the gaps are formed almost uniformly at small intervals (M2) to increase the transfer resistance.

  Furthermore, the space between the tip position (L1) and the upper left end when supplying the right side cereal is formed at a substantially uniform middle interval (M3), and the transfer resistance is set as an intermediate resistance.

  In the invention described in claim 1, the waste that has been threshed in the threshing chamber (6) and discharged to the outside of the machine is formed between the front side plate (5 a) and the rear side plate (6 b). In the rear side of the threshing chamber (6), the inside of the small grain recovery chamber (25) formed between the rear plate (6b) and the rear plate (5b) is being transferred to the outside of the machine. , Etc., which extend to the vicinity of the transfer end in the small grain recovery chamber (25) and are held in the waste by the teeth (7a) of the handling cylinder (7) provided to be pivotally supported. Is removed and dropped directly from the inside of the grain recovery chamber (25) or transferred into the dust discharge chamber (8), and the lower part of the dust discharge chamber (8) is being transferred to the transfer terminal. At the same time as the threshing processed product falling from the inside of the threshing chamber (6) to the lower part while falling to the bottom, the rocking selection and the wind selection are performed. By being recovered in Kokushitsu (6) of the rear sticks particle collection chamber provided to the (downstream side) (25), it can be reliably recovered sticks grains. Further, the collection efficiency is further improved by extending the handling cylinder (7) and collecting it by the tooth handling (7a) of the handling cylinder (7) in the small grain collection chamber (25).

  In the invention described in claim 2, a large number of teeth handling teeth (7 a) that are pivotally installed in the threshing chamber (6) are planted while being held and transferred into the threshing chamber (6). Threshing is carried out by the rotational drive of the treated barrel (7). The threshing chamber (6) is pivotally supported, and a transfer resistance is applied to the cereal basket. The inner diameter part (D1) in front of the middle plate (6a) and the outer diameter (D2) of the handling cylinder (7) are formed with a substantially uniform large distance (M1) between the upper right side and the lower left side. It is provided with reduced resistance.

  Further, the inner diameter (D3) after the middle plate (6b) and the outer diameter (D2) of the handling cylinder (7) are the center of the handling cylinder (7) at the time of supplying the cereal from the upper right side to the lower right side ( From the point a) to the tip position (L1), the gaps are formed almost uniformly at small intervals (M2) to increase the transfer resistance.

Further, the distance from the tip position (L1) at the time of supply of the right cereal to the upper end on the left side is formed at a substantially uniform middle interval (M3), and the transfer resistance is set to an intermediate resistance.
By these, the grain removal performance in the grain recovery chamber (25) part between the middle plate rear (6b) and the rear side plate (5b) is improved. In addition, by changing the transfer resistance depending on the position to be collected, the left side portion of the threshing machine (grain squeezing portion) is intended to reduce the amount of grits and unhandled grains and improve the threshing performance. be able to.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
On the upper side of the traveling chassis 3 provided on the upper side of the traveling device 2 of the combine 1, the harvested cereal is supplied from the harvesting device 4 provided on the front side of the traveling chassis 3, and the harvested cereal is threshed and selected. A threshing device 5 which is a threshing processing device is placed and provided. The threshing device 5 is provided with a threshing chamber 6 that supports the handling cylinder 7 and a dust squeezing cylinder 9 that receives the threshing processing product that could not be threshed in the threshing chamber 6 and performs threshing again. It is the structure which provided the dust-exhaust chamber 8 etc. which were supported and built, and each figure structure of this threshing apparatus 5 is mainly illustrated and demonstrated.

  As shown in FIG. 8, a traveling device 2 in which a pair of left and right traveling crawlers 2 a traveling on the soil surface is stretched is disposed below the traveling chassis 3 of the combine 1. It is the structure which mounted the threshing apparatus 5. FIG. The napped grain culm is harvested by the reaping device 4 at the front part of the traveling chassis 3 and transferred to the rear upper part, and threshing is carried out while being nipped and transferred by the feed chain 10a of the threshing device 5 and the clamping rod 10b. The grain that has been threshed and sorted is supplied into the grain storage tank 11 disposed on the right side of the threshing device 5 and temporarily stored. Details of the threshing device 5 will be described later.

  As shown in FIG. 8, a narrow guide 12a and a weed body 12b for separating the napped cereals, a pulling device 13 for raising the napped cereals, and the erected cereals are provided at the front portion of the traveling chassis 3. Each scraping device 14a of the culm scraping and transporting device 14 to be scraped, a cutting blade device 15 for cutting the scraped culm, and a feed chain 10a of the threshing device 5 by sandwiching and transporting the trimmed culm And a cutting device 4 including a root and tip transfer device 16a, 16b, etc., of the cereal scraping transfer device 14 to be delivered to the clamping rod 10b. The mowing device 4 is raised and lowered with respect to the soil surface by a telescopic cylinder 17 that is hydraulically driven.

  A support pipe rod 18b provided at an upper end portion of the support rod 18a inclined from the lower front portion to the upper rear portion of the reaping device 4 is rotatably supported by a support device 18c provided on the upper side surface of the traveling chassis 3. When the telescopic cylinder 17 is operated, the reaping device 4 is rotated up and down together with the support rod 18a.

  In the culm transfer path formed by the culm scraping transfer device 14 of the reaping device 4, the threshing device 5 is checked for the presence or absence of supply of the culm by contacting the culm that is harvested and transferred. A cereal sensor 4a for detection is provided.

  As shown in FIG. 8, an operation device 19a for starting and stopping the combine 1, and adjusting each part, and a cockpit 19b are provided at the front portion on the grain storage tank 11 side. The engine 20 is placed below the seat 19b.

  A potentiometer type vehicle speed sensor 21b for detecting the traveling vehicle speed is provided in the transmission path of the transmission mechanism 21a in the traveling mission case 21 mounted on the front end portion of the traveling chassis 3. ing.

  On the rear side of the grain storage tank 11 that discharges the grains stored in the grain storage tank 11 to the outside of the machine, as shown in FIG. Discharge with a vertical helix 22 mounted so as to be swivelable, and a discharge spiral 23a for discharging the grain out of the machine whose entire length extends over the longitudinal length of the combine 1 at the upper end of the vertical transfer cylinder 22 The auger 23 is disposed in the front-rear direction so as to be telescopic, pivotable up and down, and pivotable left and right.

  As shown in FIGS. 1 to 7, the threshing device 5 is formed in a substantially box shape with front and rear plates 5a and 5b and left and right plates 5c and 5d. 5e is provided, an upper cover 5f is provided at the rear of the upper end, and a rear outer plate 5h is provided to the rear side of the rear plate 5b by a predetermined distance.

  On the upper and lower sides of the upper part of the threshing supply port of the threshing device 5, a holding basket 10 b and a feed chain 10 a are provided, and the cereals are held and transferred in the threshing chamber 6. In this threshing chamber 6, a handling cylinder 7 in which a large number of types of handling teeth 7a are planted on the outer diameter portion is rotatably supported between the front and rear side plates 5a and 5b by a handling cylinder shaft 7b. Provided. A treatment room net 7c is stretched between the front side plate 5a and the middle plate front 6a on the lower side of the rotation outer periphery of the tooth handling 7a of the handling barrel 7 to let the threshing processed material leak. Further, the threshing chamber 6 is provided with an intermediate plate front 6a and an intermediate plate rear 6b, and the supply of supplying unthreshing processed material to the dust discharge chamber 8 between the intermediate plate front 6a and the intermediate plate rear 6b. A threshing supply chamber 6c formed by the guide 6d is provided.

  As shown in FIGS. 1 and 2, a supply guide 6d is provided between the front 6a of the middle plate and the rear 6b of the middle plate on the lower side of the rotating outer periphery of the tooth 7a of the barrel 7. The guide 6d is provided with an opening hole 6e for filtering grains and the like, and the L-shaped horizontal plate 6f is inclined at a predetermined angle toward the transfer end side on the lower surface of the supply guide 6d at the opening hole 6e. In addition, the horizontal plate 6f is provided with a resistance plate 6h having a mountain-shaped groove at the upper end so that each tooth 7a passes through the groove.

  In the grain recovery chamber 25 formed between the rear plate 6b and the rear plate 5b, the grain is inclined at a predetermined angle toward the plan view transfer side and at a predetermined angle toward the side transfer end portion. The heel support guide 6j is provided in a reverse C shape at two locations in the circumferential direction to the rear 6b of the middle plate, and provided so that each tooth 7a abuts evenly on the cereal cocoon. , And the improvement of degranulation property.

  On the right side of the threshing chamber 6, an unthreshed product, which has not been threshed in the threshing chamber 6, is supplied from a threshing supply chamber 6 c on the rear side of the threshing chamber 6. Thus, a dust discharge chamber 8 for rethreshing is provided. In the dust removal chamber 8, a dust removal spiral plate 9a and a dust removal cylinder 9 provided with a large number of dust removal treatment claws 9b on the outer diameter portion are freely rotated by a dust removal shaft 9c. It is pivotally supported between the rear chamber plate 8a. On the lower side of the outer periphery of the dust removal claw 9b of the dust removal cylinder 9, a dust collection net 8b is stretched to leak the threshing processed product. A dust discharge port 8c is provided at the transfer terminal end of the dust chamber 8 to discharge the threshing waste that has been rethreshed, the trough cut, and the like.

  A front side of the dust chamber 8 is provided with a second processing chamber 24 for receiving a second product and performing a threshing process. In the second processing chamber 24, a number of second processing claws 24b are provided. A second cylinder 24a provided in the diameter portion is rotatably supported on the same axis by a dust removal shaft 9c. On the lower side of the outer periphery of the second processing claw 24b of the second cylinder 24a, a second net 24c is stretched to leak the second thing that has been threshed again. At the transfer end of the second processing chamber 24, there is provided a second discharge port 24d that discharges the threshing waste that has been rethreshed, the chopping and the like.

  Between the rear plate 5b forming the rear side of the threshing chamber 6 and the rear plate 5b forming the rear side of the threshing device 5, as shown in FIGS. A grain recovery chamber 25 is provided to remove the grains that are fed into the waste discharged into the waste or the grains that are transported on the upper side of the waste.

  The handling cylinder 7 is extended to a position close to the rear plate 5b in the small grain collection chamber 25 and is supported by a handling cylinder shaft 7b, and the handling cylinder 7 is located in the small grain collection chamber 25. In the same manner as other parts, each toothed portion has a toothed handle 7a in a plurality of rows, and nothing is provided below the rotating outer periphery of each toothed tooth 7a. The small grains fall to the lower part and are supplied onto a swing sorting device 26a described later. Alternatively, some small amount of small grains are supplied into the dust chamber 8 and leaked from the dust net 8b of the dust chamber 8 while being transferred to the transfer terminal. , And supplied to the swing sorting device 26a.

  The threshing processed product that has been threshed in the threshing chamber 6 and leaked from the handling chamber network 8b and supplied onto the oscillating sorting device 26a and the above-mentioned small grains are simultaneously processed by the oscillating sorting device 6a. And rocking and sorting.

  The threshing waste that has been threshed in the threshing chamber 6 and discharged to the outside of the machine is a rear side of the threshing chamber 6 formed between the front side plate 5a and the rear side plate 6b. In addition, during the transfer of the grain recovery chamber 25 formed between the rear plate 5b and the rear plate 5b toward the outside of the machine, it is extended to the vicinity of the transfer end in the grain recovery chamber 25 and provided to be supported by a shaft. By the teeth 7a of the barrel 7, the grains that are being fed into the waste and the grains that are transported on the waste are removed and dropped from the small grain collection chamber 25. It is supplied onto the swing sorting device 26a. Further, a small amount of some of the small grains is supplied into the dust chamber 8 and leaks from the dust screen 8b while being transferred to the transfer terminal in the dust chamber 8, and onto the swing sorting device 26a. Supplied. Recovering the small grains by swinging and sorting at the swing sorting device 26a at the same time as the threshing processing product that has fallen from the handling room network 7c of the threshing chamber 6 and supplied onto the swing sorting device 26a. Can be recovered reliably by being recovered in the small grain recovery chamber 25 provided on the rear side (lower side) of the threshing chamber 6. Further, the handling cylinder 7 is extended and collected in the small grain collection chamber 25, and the collected small grains are transferred into the dust discharge chamber 8 or from the small grain collection chamber 25 to the lower part. By falling and being collected, the small grains can be reliably collected. Further, by providing the handling cylinder 7 so as to extend into the small grain collection chamber 25, it is possible to improve the efficiency of collecting the small grains.

  As shown in FIGS. 1 and 5, the inner diameter portion (D1) of the middle plate front 6a provided in the threshing chamber 6 and the outer diameter portion (D2) of the handling cylinder 7 are from the right upper end to the left lower end. And the inner diameter (D3) of the rear plate 6b and the outer diameter portion (D2) of the handling cylinder 7 are the upper right upper end portion. From the center (b) of the handling cylinder 7 to the tip position (L1) at the time of supply of the lower right cereal bowl, it is provided with a substantially uniform small interval (M2). Between the tip position (L1) at the time of supply and the upper left end, the inner diameter (D4) of the rear plate 6b and the outer diameter part (D2) of the handling cylinder 7 are substantially evenly spaced ( M3) is provided.

  While being fed into the threshing chamber 6 and being nipped and transferred, the threshing is carried out by the rotational drive of a handling cylinder 7 in which a large number of tooth handling teeth 7 a are planted and supported in the threshing chamber 6. The threshing chamber 6 is pivotally supported and a transfer resistance is applied to the cereal basket. The inner diameter portion (D1) of the middle plate front 6a and the outer diameter (D2) of the handling cylinder 7 are formed substantially uniformly at a large interval (M1) from the upper right side to the lower left side to reduce the transfer resistance. It is provided as much as possible.

  Further, the inner diameter (D3) of the rear plate 6b and the outer diameter (D2) of the handling cylinder 7 are the positions of the tip from the center (b) of the handling cylinder 7 when the cereal is fed from the upper right side to the lower right side. In the period up to (L1), the gaps are formed almost uniformly at small intervals (M2) to increase the transfer resistance.

  Further, the distance from the tip position (L1) at the time of supply of the right side of the cereal to the upper left part is formed at a substantially uniform intermediate interval (M3), and the transfer resistance is provided to be an intermediate resistance. By these, the grain removal performance in the grain recovery chamber 25 part between the middle plate rear 6b and the rear side plate 5b is improved. In addition, by changing the transfer resistance depending on the position to be collected, the left side of the threshing device 5 (grain squeezing part) aims to reduce the mixing of small grains and unhandled grains and improve the threshing performance. Can be planned. Further, the structure for applying these resistors is simple.

  As shown in FIG. 1, a sorting chamber 26 is provided below the threshing chamber 6, and a swing sorting device 26 a is provided in the sorting chamber 26. A cam device 26b is provided at the front portion of the swing sorting device 26a, and a roller device 26c is provided at the rear portion thereof. Oscillating and sorting into grains, swarf, slasher, dust, etc.

At the lower front part of the swing sorting device 26, a blower device 27 for generating wind is provided, and the swing sorted product falling from the swing sorting device 26a and the like is converted into grains, sawdust, etc. Select the wind.
The first sorting device 28 is provided on the rear side of the blower 27, and the first sorting device 28 is provided with a first receiving rod 28b connected to the first sorting shelf 28a. Is provided with the first transfer helix 28c pivotally supported, and the first mouthpiece grain is transferred and fed into the cerealing device 28d provided on the right outer side, and this cerealing device 28d stores the grains outside the machine. Supply into the tank 11.

  A second sorting device 29 is provided on the rear side of the first sorting device 28. The second sorting device 29 has a second sorting shelf 29a and a second receptacle 29b connected to the first sorting shelf 28a on the front side. In the second receiving rod 29b, a second transfer spiral 29c is rotatably supported, and the second item is transferred and supplied into a second reduction device 29d provided on the right outer side. It is reduced into the second processing chamber 24 by the number reducing device 29d.

In the rear part of the threshing chamber 6, a suction device 30 is provided on one side of the swing sorting device 26 a to discharge swarf, slasher, dust, and the like generated during the threshing process. .
As shown in FIG. 5, the left end position of the inner diameter (D1) of the middle plate front 6a provided in the threshing chamber 6 of the threshing device 5, the upper side of the left end position, and the location where the upper side is located. The inner diameter (D4) of the rear intermediate plate 6b is formed at a predetermined interval (M4), and the inner diameter (D4) of the rear intermediate plate 6b is located above the inner diameter (D1) of the front intermediate plate 6a. Yes.

Thereby, it is possible to reliably remove the small grains between the middle plate rear 6b and the rear side plate 5b.
As shown in FIG. 5, the middle plate rear 6b provided in the threshing chamber 6 is provided so as to protrude largely to the left side (feed chain 10a side) from the middle plate front 6a and also protrude to the upper side. ing. Moreover, while projecting to the inner side of the rope holding plate 6m, projecting to the outer side.

  As a result, the improvement of the removal of small grains that are applied to the cereals at the 6b portion after the middle plate, and when the cereal passes through the 6b portion after the middle plate, the grains are lifted upward, thereby Reduction can be achieved.

  As shown in FIG. 10 to FIG. 13, a plurality of grain support guides 6j are provided at a substantially central portion between the rear plate 6b and the rear plate 5b, and a shielding plate 31a is provided on the right side. Is provided with a stock support guide 31b. The lower end portion of the shielding plate 31a is provided at a lower position (L6) from the lower end of the dust exhaust port 8d of the dust exhaust chamber 8.

Thereby, the reduction | decrease of the small grain discharged | emitted by the 4th port can be aimed at. Further, it is possible to prevent grains, swarf and the like from accumulating on the processing cylinder frame of the dust discharging cylinder 9.
As shown in FIG. 11, the grain support guides 6j and 6j provided by being mounted on the rear plate 6b are provided with a predetermined angle to the left and right sides with the handling cylinder shaft 7b pivotally supporting the handling cylinder 7 as an axis (A). (Θ1) and (θ1) are fixed at substantially the same angular position, and the distance (tangent) from the shaft center of the barrel 7b is set to the mounting position (R1) of the shielding plate 31a, and the grain support guide The mounting positions (R2) and (R2) of 6j, 6j and the mounting position (R3) of the stock support guide 31b are provided by mounting these three members at substantially the same position. Further, the shield plate 31a and the stock support guide 31b are provided on both the left and right sides in a substantially V shape with the handling shaft 7b as the axis (A).

  Thereby, even if it is a time when the handling depth of the cereals becomes deep, it can prevent that the tip part of cereals enters the lower side of the shielding board 31a. In addition, it is possible to prevent the leakage from the dust net 8b of the dust chamber 8 from falling into the grains. Furthermore, the tip part can be brought into contact with the tooth 7a evenly. It is possible to improve the removal performance of the small grains.

  An opening 6e provided between the front 6a of the middle plate and the rear 6b of the middle plate is provided below the rotation outer periphery of the tooth 7a of the handle 7 and through which a part of the threshing product of the supply guide 6d leaks. 5 and FIG. 10, the end of the opening 6e and the outer diameter portion of the handling cylinder 7 are provided close to each other (L2), and the rear end of the handling cylinder 7 and the rear The inner surface of the side plate 5b is provided as a small gap (L3) with the handling cylinder 7 being pivotally supported.

  Thereby, the threshing supply port 6c connected from the said threshing chamber 6 to the dust removal chamber 8 is provided, the end of the opening hole 6e provided in the supply guide 6d which forms this threshing supply port 6c, and the outer diameter of the handling cylinder 7 The portion is provided close to (L2), and the transfer terminal portion of the handling cylinder 7 and the inner surface of the rear plate 5b are provided as a small gap (L3), thereby increasing the processing amount. Even at times, clogging can be prevented by increasing the leakage area. In addition, the removal of small grains can be expanded.

  In the threshing chamber 6, as shown in FIGS. 13 to 15, a threshing net 7 c is stretched on the lower net frame 7 e, and a lower front partition plate 32 a and a lower net are arranged on the inner side surface of the threshing net 7 c. The rear partition plate 32b is provided, and the space between the lower front and lower rear partition plates 32a and 32b (L4) is provided, and the space between the lower rear partition plate 32b and the middle plate front 6a is provided (L5). The gap (L5) is formed wider than the gap (L4).

  An upper threshing net 7d is stretched over the upper mesh frame 7f, and an upper front partition plate 32c and an upper rear partition plate 32d are provided on the inner surface of the upper threshing net 7d. The interval (L4) is the same as the lower interval, and is provided as the interval (L5) between the upper rear partition plate 32d and the middle plate front 6a, and the same as the lower interval.

  The mesh of the threshing net 7c is provided with a predetermined dimension smaller than the mesh of the upper threshing net 7d. The angle (θ2) is formed from the center (b) of the barrel 7b to form the lower mesh frame 7e, and the angle (θ3) is formed from the center of the barrel 7b to form the upper frame 7f. The angle (θ2) of the net frame 7e is made wider than the angle (θ3) of the upper net frame, and the area of the threshing net 7c is widened.

  The location where the tooth handling center 33 is not provided in the tooth handling 7a of the treatment barrel 7 is located in the first row of the transfer start end of the treatment barrel 7a, the location located in the threshing supply chamber 6c, and the small grain collection chamber 25. Nothing is provided except for the first row of the locations to be performed.

  Thereby, although the mesh of the said upper threshing net 7d is made larger than the mesh of the lower threshing net 7c, by optimizing the entire area, the upper and lower leakage states of the threshing product are optimized. Yes. In addition, the threshing chamber 6 is provided by making the interval (L5) between the lower rear partition plate 32b and the middle plate front 6a wider than the interval (L4) between the lower front / lower rear partition plates 32a and 32b. The threshing balance of the threshing processed product in the inside is good, and further, the threshing processed product in the threshing chamber 6 is prevented from clumping, and the generation of abnormal noise in the threshing chamber 6 can be prevented. In the tooth handle 7a of the handle barrel 7 in the small grain collection chamber 25, a tooth handle 7h is provided, so that the tooth handle 7a can be prevented from being entangled with debris and the like. Recovery performance is improved.

  As shown in FIGS. 16 and 17, the handle teeth 34 a to be implanted in the handle cylinder 7 positioned between the front side plate 5 a forming the threshing chamber 6 and the middle plate front 6 a include a wide handle teeth 7 a. The tooth-handling 34a formed with the wide tooth-handling 7h is implanted. In addition, the teeth 34b to be implanted in the handle cylinder 7 located in the bristle grain collection chamber 25 between the rear plate 5b and the rear plate 5b are a narrow handle 7j and a narrow handle 7m. The teeth 34b formed by the above are implanted.

  Further, as shown in FIGS. 16 to 19, the tooth handling to be implanted in the treatment barrel 7 is a tooth handling 34 a composed of a wide tooth handling 7 a, a middle tooth handling 7 h, and a narrow tooth handling tooth. There are four types: a tooth handling b consisting of 7j, 7m of narrow tooth handling, a wide tooth handling 35a, and a narrow tooth handling 35b. The intervals between the attachment portions of the wide teeth 34a and the teeth 35a are substantially the same, and the intervals between the narrow teeth 34b and the teeth 35b are approximately the same. . As shown in FIG. 20, these mounting positions are mounted at optimum positions. Further, the tooth handling 7a and the tooth handling 35a can be used together, and the tooth handling 7j and the tooth handling 35b can be used together.

As a result, it is possible to improve the removal performance of the small grains and improve the performance of the unhandled grains.
As shown in FIGS. 21 and 22, a shielding plate 31a is provided in the grain recovery chamber 25 provided between the rear plate 6b and the rear plate 5b, and an upper part of the inner side surface of the shielding plate 31a. The partition plate 36 having a substantially square shape is provided to be inclined downward at a predetermined angle toward the inner lower part, and the lower part of the partition plate 36 is provided with teeth 34b provided in a row on the handle cylinder 7 and two rows. Each notch groove 36a through which the tooth-handling 35b passes is provided, and is provided by being wrapped with the tooth-handling 34b and the tooth-handling 35b.

  Further, the planting pitch (L10) of the tooth handling 34a planted on the handling barrel 7 and the planting pitch (L7) of the tooth handling 35a of the threshing supply chamber 6c are set to be substantially the same pitch, and the grain recovery chamber. The planting pitch (L8) of 25 parts is substantially the same as the gap (L9) between the left and right sides, and (L8) and (L9) are formed narrower than (L10) and (L7). The removal performance of the small grains is improved.

Thereby, while improving the unhandled grain performance and the improvement of the grain removal performance, it is possible to prevent accumulation of sawdust at the transfer terminal portion of the threshing chamber 6.
As shown in FIG. 23, the handling cylinder 7 is formed in the outer diameter part (D2), and the inner diameter part 6a inner diameter part is moved to the left of the predetermined dimension (N) from the center of the handling cylinder shaft 7b. The center is formed with a predetermined inner diameter (D5) with the axis (b) as the position, and the inner diameter portion of the rear plate 6b is formed with the predetermined inner diameter (D4) from the shaft center (b) of the barrel shaft 7b. ing. As a result, the inner diameter (D5) of the front plate 6a and the inner diameter (D5) are treated between the lateral position of the shaft center (b) of the handle cylinder shaft 7b, the predetermined angle (θ4) and the lower position to the predetermined angle (θ5). The gap (S2) with the outer diameter (D2) of the cylinder 7, the inner diameter (D4) of the rear plate 6b, and the gap (S3) with the outer diameter (D2) of the handling cylinder 7 are substantially the same gap. It is provided to be.

  Further, the non-polymerized state portion (S1) in which the polymerization is not performed upward from the lower position of a predetermined angle (θ4) of the polymerization state position of the middle plate front 6a and the middle plate rear 6b is sequentially increased. It is formed and provided.

  Further, a partition plate 37 is provided at a position where the middle plate rear 6b is located on the inner side surface of the handling cylinder cover 5e, and the inner diameter of the partition plate 37 is set to a predetermined inner diameter from the axis (A) of the handling cylinder shaft 7. The inner diameter (D6) and the outer diameter portion (D2) of the handling cylinder 7 are provided with a predetermined gap (S4). The inner diameter (D6) portion at the lower right side of the partition plate 37 is provided in an R shape with a predetermined size.

  Thereby, it becomes easy for swarf etc. to cross 6b part after the above-mentioned middle board, and for this reason, clogging of swarf etc. can be prevented also in the kind which is easy to generate high yield and sawdust. Further, the provision of the partition plate 37 on the upper portion can prevent the occurrence of small grains.

  The clearance (S3) between the inner diameter part (D4) of the rear plate 6b provided in the threshing chamber 6 and the outer diameter part (D2) of the handling cylinder 7, the inner diameter part (D6) of the partition plate 37, and this handling The gap (S4) with the outer diameter portion (D2) of the barrel 7 is provided to be substantially the same and the same.

  Thereby, the partition plate 37 and the rear plate 6b provided on the upper and lower sides in the threshing chamber 6 have substantially the same gaps (S4) and (S3) between the outer diameter part (D2) of the handling cylinder 7 and As a result of the provision of the threshing supply chamber 6c in the threshing supply chamber 6c, it is possible to significantly reduce the number of grains discharged out of the machine as the fourth grain (crust grains). it can.

  As shown in FIGS. 25 to 29, on the transfer terminal end side of the threshing chamber 6, there is a first series of chambers 38a between the middle plate front 6a communicating with the dust removal chamber 8 and the middle plate rear 6b. In addition, a second communication chamber 38b is provided between the middle plate rear 6b and the rear side plate 5b.

  A first conveyance guide plate 39a is provided at a lower rotational outer periphery of the tooth handling 35a of the handling cylinder 7 and a first intake port 38c is provided, and a threshing processed product is discharged from the first intake port 38c into a dust chamber. 8 is supplied. The first transport guide plate 39a is provided with a plurality of opening holes 6e through which a part of the threshing processed product leaks, and a resistance plate is individually provided on the transfer start end side in the rotation direction of each opening hole 6e. 6h is provided. In addition, the second communication chamber 38b is provided with a plurality of grain support guides 6j that mainly allow the grains to flow down, and the second conveyance guide plate 39b is provided on the dust removal chamber 8 side to provide the second intake. A port 38d is provided, and a part of the small grains that have not leaked is supplied to the dust discharge chamber 8 from the second intake port 38d.

  Thus, the coarse grains are collected in the second communication chamber 38b, and the remaining coarse grains are supplied into the dust discharge chamber 8, thereby preventing the coarse grains from being taken out of the apparatus. In addition, it is easy to make a single grain of a key or a small grain.

Left overall cross-sectional view of threshing device Overall plan view of threshing device Overall front view of threshing device AA sectional view of FIG. BB sectional view of FIG. CC sectional view of FIG. DD sectional view of FIG. Combine left overall side view Left overall cross-sectional view of threshing device Whole flat section of threshing device DD sectional view of FIG. Front perspective view of frame of threshing device Partial enlarged side sectional view of the threshing device AA sectional view of FIG. DD sectional view of FIG. Expanded front view of wide teeth Enlarged front view of narrow teeth Expanded front view of wide teeth Enlarged front view of narrow teeth Partial enlarged side sectional view of the threshing device DD sectional view of FIG. Enlarged plan view of the threshing supply chamber and the small grain recovery chamber BB sectional view of FIG. CC sectional view of FIG. Left overall cross section of threshing device Whole flat section of threshing device Front perspective view of frame of threshing device CC sectional view of FIG. DD sectional view of FIG.

Explanation of symbols

(5a) Front plate (5b) Rear plate (6) Threshing chamber (6a) Middle plate front (6b) Middle plate rear (6c) Threshing supply chamber (7) Handling cylinder (7a) Teeth handling (8) Dust removal chamber (9) ) Dust removal cylinder (9a) Dust removal spiral plate (9b) Dust removal claw (25) Crush grain recovery chamber (D1) Inner diameter part (D2) Outer diameter part (D3) Inner diameter part (M1) Large distance (M2) Small distance (M3) Medium interval (L1) Tip position (I) Center

Claims (2)

  A threshing chamber (6) is provided between a front plate (5a) and a rear plate (6b) that pivotally supports a handle barrel (7) in which a plurality of types of handle teeth (7a) are implanted. On the right side of the chamber (6), there is a dust chamber (8) with a dust exhaust cylinder (9) fitted with a dust exhaust spiral plate (9a) and a plurality of dust disposal claws (9b). The threshing supply which the unthreshing processed material which was provided and was not threshing-processed in this threshing chamber (7) formed between the middle plate front (6a) in this threshing chamber (6) and this intermediate plate (6b) is formed. In the threshing apparatus which is supplied from the chamber (6c) into the dust chamber (8) for processing, the rear of the threshing chamber (6) formed between the front plate (5a) and the middle plate (6b) A small grain recovery chamber (25) is provided between the rear side plate (6b) and the rear side plate (5b), and the handling cylinder (25) is provided up to the rear end in the small grain recovery chamber (25). 7) Extension shaft support Threshing apparatus characterized by comprising Te.   The inner diameter part (D1) of the middle plate front (6a) provided in the threshing chamber (6) and the outer diameter part (D2) of the handling cylinder (7) are approximately between the right upper end and the left lower end. The inner diameter (D3) of the rear middle plate (6b) and the outer diameter portion (D2) of the handle cylinder (7) are arranged from the upper right end to the lower right cereal. Between the center (A) of the handling cylinder (7) at the time of supply and the tip position (L1), it is provided with a substantially equal small interval (M2), and the position of the tip at the time of supplying the right cereal The threshing apparatus according to claim 1, wherein a portion between (L1) and the upper left end portion is provided with a substantially uniform middle interval (M3).

Images