JP2007319033A - Threshing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a threshing device capable of improving the recovering efficiency of cereal grains (single grain ratio) in the front directional part of a threshing chamber by improving the treatment of secondary cereal grains. <P>SOLUTION: This threshing device is provided by constituting a threshing drum 69 equipped at a threshing chamber 66 of the threshing device 15 with a first threshing drum 69a positioned at the beginning end in the conveying direction of the material to be treated and a second threshing drum 69b positioned at the final end side in conveying direction of the material to be treated and treating the secondary materials conveyed from a cereal grains-elevating tube 87 and also removing stuck grains happened in the first threshing drum 69a, and preventing the secondary cereal grains from hitting to a board material 81 and flowing out to the beginning end side of conveying direction by installing the board material 81 in between the first threshing drum 69a and second threshing drum 69b. Also, by making the number of rotations of the second threshing drum 69b larger than that of the first threshing drum 69a, it is possible to thresh-treat the most part of the cereal culms directly after the introduction into the threshing device 15 by the first threshing drum 69a having a small number of rotations and then perform the treatment of cut off ears and stuck grains mingling with straw culms and removal of branches from the branches and grains by releasing them by a second threshing drum 69b having a large number of rotation, so as to reduce third and fourth grains. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a threshing device mounted on a combine or the like.

The combine is composed of a cereal reaping device, a threshing device, a Glen tank that temporarily stores the grain after threshing, and an auger that discharges the grain stored in the Glen tank.
In the handling room, which is the main threshing part of the threshing device, the culm harvested by the reaping device is inserted. Threshed by action. The material to be processed (grains and wastes) separated from the cereals passes through the handling net and is received by the swing shelf in the sorting room to separate the second cereals and swarf, etc. Transport to tank.

  The second kernel is sent to the second processing chamber provided on the side of the handling room, and is separated into grains, branch rachis, etc. by the second processing cylinder, and falls again on the swing shelf, and the grains and sawdust And so on. Short items such as sawdust generated in the handling chamber are transported to the dust disposal chamber and processed by the dust disposal cylinder.

In the handling room in which the cereals are first inserted in the threshing device, most of the cereals are threshed by rotating the handling cylinder while the workpiece is being conveyed. Threshing efficiency is improved by sufficient threshing processing in the main threshing section. Therefore, in order to perform the threshing process with high efficiency in the handling room, according to Patent Document 1 below, the handling cylinder in which the tooth handling is implanted is divided into front and rear parts, and the front part is divided into the first handling cylinder and the rear part. In the threshing machine in which the second barrel is rotated at a higher speed than the first barrel, the planting density of the teeth of the second barrel is set to be equal to that of the teeth of the first barrel. A device that is larger than the planting density has been made (Patent Document 1).
JP 2000-354417 A

  According to the configuration described in the above-mentioned Patent Document 1, the long slices that have been cut off or pulled in are crushed or shredded by high-density teeth that rotate at high speed, and the scorpion grains intervening in the cocoon are scraped off to form the crushed grains. Can be removed.

However, according to the configuration described in the above-mentioned Patent Document 1, the second thing (grain (regulated size), branch infarct grain, fine sawdust) among the objects processed in the first handling cylinder and the second handling cylinder. Etc.) is transported by a second lifting cylinder having a second spiral at the bottom, and is not returned to the second processing cylinder, but is returned to the swing shelf, so that the threshing process is not possible. It is sufficient, and the processing efficiency of the second grain such as the treatment of branch infarct grains is not improved. Moreover, even when the second grain is reduced to the second processing cylinder, in the conventional configuration in which the second processing cylinder is provided on the side of the handling chamber, the second grain conveyed to the second processing chamber is There is a case where the second processing cylinder flows out to the front (conveying direction start end side) lower part of the handling cylinder. The grain shed in the early stage of threshing that leaks in the area in front of the handling room is a single grain and does not contain impurities, but in this case, the second grain is mixed in the front part of the handling room, Of the processed products (grains and wastes) separated from the koji, the required improvement in the single grain rate cannot be expected.
An object of the present invention is to solve the above problems, and provide a threshing device that improves the processing of the second kernel and improves the recovery efficiency of the kernel (single grain ratio) in the front part of the handling room It is.

The above problem can be solved by the following solution means.
The invention described in claim 1 includes a handling chamber (66) in which a handling cylinder (69a, 69b) provided with a tooth handling (69c, 69d) for separating and processing the grain from the cereal is provided, and the handling cylinder. (69a, 69b) in the workpiece obtained by processing the cereals that have passed through the feed chain (14) that feeds the cereals from the conveyance start end part to the conveyance end part and the handling chamber (66). Grain cylinder (87) which conveys the second thing which is the mixture containing the scorpion grain which the normal grain has stuck in the normal grain and the cocoon to the conveyance direction termination | terminus part side of a handling cylinder (69a, 69b) again. ) In the threshing apparatus provided with the first handling cylinder (69a) positioned on the start end side in the conveyance direction of the object to be processed and the end part in the conveyance direction of the object to be processed. The feed chain is positioned and processes the second thing conveyed from the cereal cylinder (87) 14) After threshing in the first barrel (69a) while being conveyed by 14), the cereals that have not been threshed in the cereals that are subsequently conveyed by the feed chain (14) are threshed, and at the same time, the grains are stabbed. The first handling cylinder (69a) is divided into a first handling cylinder (69a) and a second handling cylinder (69b), and the first handling cylinder (69a) is partitioned between the first handling cylinder (69a) and the second handling cylinder (69b). ) And a second threshing device provided with a plate member (81) having a flat surface in a direction perpendicular to the axis of the second barrel (69b).

  The invention according to claim 2 is the threshing apparatus according to claim 1, wherein the number of rotations of the second handling cylinder (69b) is set to be larger than the number of rotations of the first handling cylinder (69a).

  According to invention of Claim 1, in order to process the 2nd thing in the to-be-processed object obtained by processing a grain straw in a 1st handling cylinder (69a) further in a 2nd handling cylinder (69b), The processing efficiency of the second grain is improved. Moreover, the 2nd grain processed by a 2nd handling cylinder (69b) is provided by providing the board | plate material (81) which partitions off a handling chamber (66) between a 1st handling cylinder (69a) and a 2nd handling cylinder (69b). In order to prevent the grains from hitting the plate material (81) and outflowing toward the first handling cylinder (69a) located on the conveyance direction start end side, the single grain ratio in the front part of the handling chamber (66) can be improved. it can.

  In addition, after threshing in the first handling cylinder (69a) while being conveyed by the feed chain (14), the cereal grains that are not threshed and conveyed by the feed chain (14) continue to be the second handling cylinder (69b). Thresh when it reaches. In addition, the normal grain processed in the 1st handling cylinder (69a) is stabbed into the cocoon with the cocoon, and the scorpion grain is generated. 69b), and it is beaten and processed by the second handling cylinder (69b), so that the scorpion grains present in the waste can be collected during that time.

  According to the second aspect of the present invention, the rotation speed of the second handling cylinder (69b) is further set to be higher than the rotation speed of the first handling cylinder (69a), so that the low-speed rotation positioned forward is performed. After threshing most of the cereals just after being introduced into the threshing device (15) by the first handling cylinder (69a), processing of cutting of the ears is performed by the second handling cylinder (69b) of high-speed rotation located at the rear. It is possible to remove and remove the branch of the scorpion grains and the branch infarct that intervened in the cocoon and culm, and the third and fourth grains are reduced.

  FIG. 1 shows a left side view of a combine that performs a grain harvesting operation according to an embodiment of the present invention, FIG. 2 shows a plan view of the combine of FIG. 1, and FIG. 3 shows a combine threshing apparatus of FIG. A partially cutaway side cross-sectional view is shown. In the present embodiment, the front side and the rear side in the forward direction of the combine are referred to as front and rear, respectively, and the left side and right side are referred to as left and right, respectively.

  At the lower part of the traveling frame 2 of the combine 1 shown in FIGS. 1 and 2, there is a pair of left and right crawlers 4 made of a flexible material such as rubber and formed into an endless belt shape. The crawler 4 is provided with a traveling device 3 configured to be able to travel freely with a slight sink, a cutting device 6 is mounted on the front portion of the traveling frame 2, and an engine and a threshing device 15 (not shown) are installed on the upper portion of the traveling frame 2, The cockpit 20 and the Glen tank 30 are mounted.

  The reaping device 6 is configured such that the entire reaping device 6 can be lifted and lowered by a telescopic action of a reaping lifting cylinder (not shown), and cereals vegetated on the farm can be harvested at a predetermined height. The weeding tool 7 is disposed at the lower part of the front end of the reaping device 6, the cereal raising device 8 having an inclined shape behind it, and a cutting blade (not shown) at the rear bottom thereof. Between the cutting blade and the starting end of the feed chain 14 of the threshing device 15, the front conveying device, the handling depth adjusting device, the supply conveying device, etc. (not shown) can be successively transferred and adjusted for the cereals. Are arranged as follows.

  The operation of the harvesting device 6 of the combine 1 is performed as follows. First, the engine is started and the operation levers for shifting, steering, etc. are operated so that the combine 1 moves forward, and the cutting and threshing clutch (not shown) is inserted and operated to transmit the rotating parts of the aircraft. When the traveling frame 2 is caused to travel forward, cutting and threshing operations are started. The cereals to be planted in the field are subjected to weeding action by the weeding tool 7 at the lower front end of the reaping device 6, and then the culm raising device 8 causes the standing device to stand upright if it is in the lying state. The cereal stock reaches the cutting blade and is cut, and is scraped into the front transport device and transported backwards. Be transported.

  The cereal is inherited from the supply and transport device to the start end of the feed chain 14 and supplied to the threshing device 15. The threshing device 15 has a handling chamber 66 with a handling cylinder 69 pivoted on the upper side, and a sorting unit 50 is provided integrally on the lower side of the handling chamber 66 to thresh and sort the supplied harvested cereal meal.

  As will be described in detail later, the cereal mash supplied to the threshing device 15 is inserted into a handling chamber 66 that is a main threshing unit, and a plurality of teeth 69c of a handling drum 69 that is pivoted on the handling chamber 66 and rotated. 69d, threshing is performed by the interaction with the feed chain 14 and the handling net 74, and the object to be processed (grains and sawdust) is received by the swing shelf 51 of the sorting unit 50 in the threshing device 15, While moving on the rocking shelf 51 that rocks in the front-rear direction, the wind is selected by receiving air from the tang 79, and the grains with heavy specific gravity pass through the sheave 53 and the selection net 63, and from the first spiral 65a, It is transported to the Glen tank 30 through the first cereal cylinder 65 containing a transport spiral (not shown) and temporarily stored in the Glen tank 30. On the shaft center in the longitudinal direction of the first cereal cylinder 65, the straw outlet of the Glen tank 30 is provided.

  The remaining threshed cereals that have reached the end of the handling chamber 66 of the threshing device 15 and remain long are sandwiched between the sewage chain 80 (FIG. 4) and the scouring head lug 80a, conveyed, and threshed. It is thrown into a straw cutter at the rear of the device 15, cut and released to the field.

  A grain tank helix (not shown) for transferring grains is provided at the bottom of the glen tank 30, and a discharge auger comprising a vertical auger 18 and a horizontal auger 19 is provided on a helical drive shaft (not shown) for driving the glen tank helix. The grains that are connected and stored in the Glen tank 30 are discharged to the outside of the combine 1 from the discharge port of the discharge auger. The Glen tank spiral, vertical auger spiral (not shown), and horizontal auger spiral (not shown) are rotationally driven in response to the power of the engine and convey the stored grains by the screw conveyor action of the respective spiral blades. .

  4 shows a plan view of the vicinity of the handling drum 69 inside the threshing device 15 of FIG. 3, and FIG. 5 shows a perspective view showing the relationship between the first handling drum 69a and the second handling drum 69b. Shows a simplified front view of the vicinity of the handling drum 69 of FIG. Further, FIG. 7A shows a simplified view of the vicinity of the handling drum 69 taken along line AA in FIG. 4 and FIG. 7B shows a view taken along line BB in FIG. Further, FIG. 8 shows a transmission mechanism near the handling drum 69.

  The grain husks harvested by the reaping device 6 are adjusted in the handling depth by the cereal conveyance and adjusting device attached to the reaping device 6 and inserted into the handling chamber 66 which is the main threshing portion of the threshing device 15. As shown in FIGS. 3 to 8, the handling cylinder 69 pivoted in the handling chamber 66 includes a first handling cylinder 69 a on the start end side in the conveyance direction of the processed material and a second handling cylinder 69 b on the end side in the conveyance direction. It is divided and a large number of teeth 69c and 69d are provided on the surface of each handle (69a and 69b). Then, the power from the engine is transmitted to rotate in the direction of arrow B in FIGS. 6 and 8 by the drive mechanism. The transmission mechanism will be described in detail later.

  The cereal with a grain inserted into the handling chamber 66 is transferred in the direction of arrow A in FIG. 3 by the moving feed chain 14 and is rotated in the direction of arrow B while being rotated in the direction of arrow B. Is threshed by the interaction between the tooth handle 69 c and the handle net 74. As shown in FIG. 3, most of the cereals transported from the feed chain 14 are transported to the first handling cylinder 69a on the transport direction start end side, but are not transported to the first handling cylinder 69a. The grains are transported to the second handling cylinder 69b on the end side in the transport direction, and threshed by the interaction between the tooth handling 69d of the second handling cylinder 69b and the handling net 74. And the to-be-processed object (a grain and a sawdust) isolate | separated from the grain straw passes the handling net | network 74 in the arrow C1 direction (FIG. 6), and is received by the swing shelf 51. FIG.

  The swing shelf 51 is composed of a transfer shelf arranged below the handling net 74 of the handling chamber 66, an upper sheave 53 arranged behind it, a sorting net 63 below it, and a Strollac 62 arranged at the rearmost end. Yes. The swing shelf 51 is provided with a plurality of triangular sorting plates 51 a, and the swing shelf 51 is disposed in front of the sheave 53. The swing shelf 51 is arranged below the handling cylinder 69 so that the second processed material can be received.

  The grain that has been threshed in the early stage of threshing that leaks in the area in front of the handling net 74 (FIG. 3) is a single grain and does not contain impurities, so there is no need to roughly sort on the sieve 53, and the direct sorting net 63 Wind selection can be performed by blowing air from the tang 79 described later, the load on the sheave 53 is lightened, and efficient threshing becomes possible.

  Further, since the swing shelf 51 swings in the up / down and front / rear direction by the operation of the swing shelf drive mechanism (not shown), the object to be processed leaks onto the swing shelf 51 while moving in the arrow D direction (FIG. 3). The grain having a high specific gravity passes through the sorting net 63 in the direction of arrow E, is accumulated on the first shelf 64, and is transported from the first spiral 65a to the grain tank 30 via the first lifting cylinder 65. The grains stored in the Glen tank 30 are conveyed to the outside of the combine 1 via the augers 18 and 19.

  Among the objects to be processed on the swing shelf 51, the lighter ones are blown off by the swing action of the swing shelf 51 and the air blown by the fan 79 a of the Karatsu 79 and are directed in the direction of arrow D from the swing shelf 51 toward the sheave 53. The second small grain on the Strollac 62 is leaked in the direction of the arrow G, collected on the second shelf 85, and conveyed to the second lifting cylinder 87 by the second spiral 86. (FIG. 3).

The second kernel (sometimes called the second product) is a mixture of normal kernels, branch boughs, sawdust and scorpion grains with normal kernels in the waste. The inside of the whipping cylinder 87 is lifted by the second whipping cylinder helix 86, conveyed in the direction of the arrow X in FIG. 4 (or FIG. 6), and discharged above the second handling cylinder 69b. The second handling drum 69b is rotated in the direction of arrow B by the driving device (FIG. 8). The second kernel is separated from the second kernel and the branch infarct while branching in the direction of arrow I (FIG. 3) while colliding with a number of teeth 69d planted in the second handle drum 69b. Part of the object to be processed passes through the handling net 74 provided below the second handling cylinder 69 b and leaks to the sorting chamber 50, and most of the object to be processed is sieved from the swing shelf 51. The cereal grains are fed in the direction 53, and the grain passes through the sheave 53 and the sorting net 63 and is collected in the first spiral 65a.
In this way, the second product is collected on the swing shelf 51 and reprocessed by the sheave 53, so that the separation between the grain and the sawdust is improved.
On the other hand, the threshed cereals in the object to be processed that have reached the end of the handling chamber 66 are put into the slaughter processing chamber 95.

  As shown in FIGS. 3 and 4, between the first handling cylinder 69 a on the start end side in the conveyance direction of the processed material and the second handling cylinder 69 b on the end side in the conveyance direction, that is, in the divided portion of the handling cylinder 69. A plate member 81 having a flat surface portion is provided in a direction orthogonal to the conveying direction of the processed material that divides the handling chamber 66 into two parts in the front-rear direction. In FIG. 6 showing a simplified front view of the vicinity of the handling cylinder 69, the illustration of the plate material 81 is omitted for easy understanding of the relationship between the first handling cylinder 69a and the second handling cylinder 69b, but FIG. In b), the plate 81 is shown as a speckled portion.

  Normally, a second processing chamber is provided on the side of the processing chamber 66 and a second processing cylinder is pivoted. When sag particles are generated in the second object, the sag particles are moved to the front side of the processing cylinder 69. May leak. The grain threshed in the early stage of threshing that leaks in the area in front of the handling drum 69 is a single grain and does not contain impurities, but when the second thing flows out to the front side of the handling drum 69 in this way, a single grain The rate does not improve.

  However, according to this configuration, the second handling cylinder 69b corresponding to the conventional second processing cylinder is arranged behind the first handling cylinder 69a, and further, the first handling cylinder 69a and the second handling cylinder 69b are arranged. In order to prevent the second grain processed in the second handling drum 69b from hitting the plate material 81 by providing the plate material 81 in between, it flows out toward the first handling drum 69a located on the conveyance direction start end side, The single grain ratio in the front portion of the handling chamber 66 can be improved. And it becomes possible to eliminate the second thing that has fallen on the swing shelf 51 of the sorting unit 50 from the lower front part of the handling chamber 66. In addition, by adopting this configuration, the second thing in the processing object processed in the first handling cylinder 69a is further processed in the second handling cylinder 69b, so that the processing efficiency of the second grain is improved. . Moreover, compared with the structure which has the conventional 2nd processing cylinder, the width direction of the threshing apparatus 15 becomes a compact structure because there is no 2nd processing cylinder.

Further, the rotational speed of the second handling cylinder 69b may be made larger than the rotational speed of the first handling cylinder 69a.
For example, as shown in FIG. 8, when the driving force is input to the pulley 93 from the engine, the driving shaft 97 is driven by the power transmitted to the pulley 93, and the second handling drum 69b rotates in the arrow B direction. To do. Gears 82, 83, and 84 are provided between the drive shaft 96 and the drive shaft 97, and the power from the engine is transmitted by meshing the respective gears. In these gears, the gear diameter increases in the order of the gear 83, the gear 82, and the gear 84, and the number of gear teeth increases, so the rotational speeds of the drive shaft 97 and the drive shaft 96 are reduced according to the gear ratio. . That is, the drive shaft 96 connected to the gear 84 rotates at a lower speed than the drive shaft 97 connected to the gear 83, and the drive shaft 97 connected to the gear 83 is connected to the gear 84. It rotates at a higher speed than the shaft 96. Therefore, the rotation speed of the second handling cylinder 69b is larger than that of the first handling cylinder 69a. As shown in FIG. 8E, driving force may be input to the pulley 92 from the engine.

  By adopting this configuration, after most of the cereal grains just after being introduced into the handling chamber 66 are threshed by the first handling cylinder 69a, the processing of cutting the ears is performed by the high-speed rotating second handling cylinder 69b located at the rear. It is possible to perform branching treatment to remove branching stems of scorpion grains and branching seeds that have intervened in acupuncture, and the third and fourth grains are reduced.

  Further, as shown in FIGS. 3 to 6, the diameter of the second handling cylinder 69b may be larger than the diameter of the first handling cylinder 69a. The second handling drum 69b performs processing of the second grain conveyed from the second cereal cylinder 87, but also strikes the scorpion grain in the second grain and removes the scorpion grain. That is, the culm that has been threshed by the first handling cylinder 69a while being transported to the feed chain 14 is continuously transported by the feed chain 14 toward the second handling cylinder 69b on the conveyance terminal end side and has not been threshed. Thresh

  In addition, the scorpion grains in a state where normal grains produced by the rotation of the cocoons and normal grains while the first handling cylinders 69a rotate are inserted from the second lifting cylinder 87 into the second handling cylinder 69b. Since the scorpion grains are beaten and processed in the second handling cylinder 69b, the scorpion grains present in the waste can be recovered. Further, the scorpion grains generated in the second handling cylinder 69b are also struck and collected in the second handling cylinder 69b.

  In this case, the length of the waste to be conveyed varies, but a long one may wind around the second handling drum 69b. If the diameter of the second handling cylinder 69b is relatively small, the waste that has come off the feed chain 14 is likely to be wound around the second handling cylinder 69b. However, by adopting this configuration, the diameter of the second handling cylinder 69b is increased. Therefore, the waste is less likely to be wound, and the waste is prevented from being wound around the second handling drum 69b. Moreover, since the diameter of the 2nd handling cylinder 69b is large, the peripheral speed by the side of a conveyance rear end part can be increased, and the threshing processing capability of a grain can be increased. Further, by reducing the diameter of the first handling drum 69a, a space for the cockpit seat 20 adjacent to the first handling drum 69a on the transport direction start end side can be secured.

  Further, as shown in FIG. 6, in the configuration in which the diameter of the second handling cylinder 69b is larger than the diameter of the first handling cylinder 69a, the positions below the first handling cylinder 69a and the second handling cylinder 69b are set in the horizontal direction. It may be set on the same tangent (P). That is, it is the structure which has arrange | positioned the lower end part (lowermost position) of the 2nd handling cylinder 69b and the 1st handling cylinder 69a at the same height.

  By adopting this configuration, the lower position of the second handling cylinder 69b having a diameter larger than that of the first handling cylinder 69a is set on the tangent line (P), that is, the lower end portion of the second handling cylinder 69b is tangent. Since it is not located above (P), it is possible to eliminate the upper limit change of the handling chamber 66 including the second handling cylinder 69b and the first handling cylinder 69a.

  Further, since the outer peripheral portion (line S) on the feed chain 14 side of the second handling cylinder 69b is located above the outer peripheral portion (line T) on the feed chain 14 side of the first handling cylinder 69a, the feed chain 14 It is difficult to be pulled into the second handling drum 69b when the cereal straw is introduced from the top. The cereals thrown in from the feed chain 14 are first threshed in the first handling cylinder 69a and are in the rejected state when they are transported to the second handling cylinder 69b. Therefore, if the cereals are drawn when being conveyed to the second handling drum 69b, swarf is generated. On the other hand, even if cereal grains are drawn into the first handling cylinder 69a, the first handling cylinder 69a is located in front of the swinging shelf 51 of the sorting unit 50, so that there is a margin in the sorting process and the grains can be collected. .

  According to this configuration, the distance between the cereal bowl conveyed from the feed chain 14 and the handling drum 69 is longer in the second handling drum 69b (distance Lb) than in the first handling drum 69a (distance La) (Lb). > La), the waste is not easily drawn into the second barrel 69b. Therefore, it is possible to prevent the bag from being drawn.

  Furthermore, the positions of the left and right ends of the first handling cylinder 69a and the second handling cylinder 69b on the feed chain 14 side may be arranged on the same tangent line in the vertical direction. FIG. 6 shows the case where the feed chain 14 is located at the right end as viewed from the front of the combine 1, so that the positions of the right end are aligned and the tangent line (Q) is matched.

If the positions of the right end part or the left end part of the two handling cylinders 69 of the first handling cylinder 69 a and the second handling cylinder 69 b are shifted, the cereals that enter the handling chamber 66 from the feed chain 14 are transferred to the handling cylinder 69. It will bend a lot at the carry-in entrance, and the so-called depth of grain will change. For example, when the second handling cylinder 69b is located at the U position indicated by the alternate long and short dash line in FIG. 6, an unhandled portion of the V portion surrounded by a circle occurs.
However, by adopting this configuration, the cereals conveyed from the feed chain 14 are carried into the same position on the sides of the first handling cylinder 69a and the second handling cylinder 69b, so that the first handling cylinder 69a and the first handling cylinder 69 2 The handling depth in the handling cylinder 69b can be kept constant, and no handling residue occurs. Moreover, since it carries in to the same position in this way, even if it does not make the shape of the feed chain 14 complicated, since it can be comprised by a linear simple shape, the structure of the threshing apparatus 15 can be simplified and it is economical. .

Further, as shown in FIG. 4 to FIG. 7, a flat portion is provided in the direction perpendicular to the rotation direction of the second handling cylinder 69b near the outlet of the handling chamber 66 at the end of the processing direction of the second handling cylinder 69b. A guide plate 88 may be provided.
As shown in FIG. 6, the workpiece to be conveyed upward hits the guide plate 88 as the second handling cylinder 69b rotates in the direction of arrow B, falls from the direction of arrow C2 to the direction of arrow C1, and moves on the swing shelf 51. To leak. When there is no guide plate 88, the processed material rotates as it is around the second handling cylinder 69b and accumulates on the second handling cylinder 69b, and the grains in the processed material are mixed into the straw and the saglet grains are formed. It may occur and the third grain and the fourth grain may be generated.
However, by adopting this configuration, the efficiency of the threshing process is improved, and it is possible to prevent the generation of third and fourth grains.

  Moreover, as shown in FIG. 4, it is good also as a structure which accommodated the drive transmission part of the 1st handling cylinder 69a and the 2nd handling cylinder 69b in the inside of the board | plate material 81. FIG. If the transmission mechanisms such as the gears 82, 83, and 84 shown in FIG. 8 described above are provided inside the plate member 81, the structure around the handling drum 69 is made compact, and the structure of the entire threshing device 15 is also made compact. Further, by adopting this configuration, the gears 82, 83, 84, etc., which are components of the drive transmission unit, function as columns and beams of the plate material 81, that is, bones, so that the strength of the plate material 81 is also ensured. The

9 is a partially cutaway side sectional view of a combine threshing apparatus according to another embodiment of the present invention, and FIG. 10 is a plan view of the vicinity of a handling cylinder 69 inside the combine threshing apparatus 15 of FIG. 11 is an elevational sectional view of the vicinity of the processing cylinder 70 as viewed in the direction of arrows A1-A1 in FIG. 10, and FIG. 12 is an elevational sectional view of the vicinity of the dust exhausting process cylinder 71 as viewed in the direction of arrows B1-B1. Indicates. In addition, illustration of the board | plate material 81 is abbreviate | omitted in FIG. 11, FIG.
This embodiment is shown in FIGS. 3 to 6 and the like in that a processing chamber 67 having a processing cylinder 70 and a dust processing chamber 68 having a dust processing cylinder 71 are provided below the handling cylinder 69. Although different from the combine, the other configurations are the same, and thus description of common parts is omitted.

  According to this embodiment, the processing cylinder 70 is provided below the first processing cylinder 69 a and the second processing cylinder 69 b via the processing net 74, and further, the processing cylinder receiving net is provided below the processing cylinder 70. 75 is provided. Then, the grains processed by the first handling cylinder 69a and the second handling cylinder 69b flow into the processing cylinder 70 through the handling net 74 and are planted in the processing cylinder 70 rotated in the direction of arrow J. While colliding with the tooth-handling 70 a, it is conveyed in the direction of arrow I in FIG. 9, passes through the processing drum receiving net 75, falls in the direction of arrow R (FIG. 11), and leaks into the sorting chamber 50.

  In addition, the second thing conveyed to the second lifting cylinder 87 by the second spiral 86 is conveyed in the arrow Y direction (FIG. 11) by the second lifting cylinder spiral 87a and enters the processing chamber 67, and the processing cylinder 70. 11, passes through a processing cylinder receiving net 75 (FIG. 11) provided below the processing cylinder 70, falls in the direction of arrow R, leaks into the sorting chamber 50, and most of the object to be processed is a swing shelf. 51 is sent in the direction of the sheave 53, and the grain passes through the sheave 53 and the sorting net 63 and is first collected in the spiral 65a.

On the other hand, the second thing conveyed to the second lifting cylinder 87 by the second spiral 86 is also conveyed in the direction of the arrow Z, and the second kernel 69b separates the second grain and the branch of the branch stem. Removal is performed. And if the blade | wing 87b is provided above the 2nd cereal cylinder spiral 87a, since the blade | wing 87b will rotate, a to-be-processed object will flow easily in the arrow Z direction, ie, a to-be-processed object is 2nd rather than the process cylinder 70 side. A large amount flows toward the side of the handling drum 69b. Then, as described above, the object to be processed hits the plate member 81 and falls onto the swing shelf 51 without flowing out toward the first handling cylinder 69a on the transport direction start end side. Further, the remaining part of the grain processed by the second handling cylinder 69 b is processed in the processing cylinder 70 through the handling net 74 from the second handling cylinder 69 b, and the processing cylinder provided below the processing cylinder 70. It passes through the receiving net 75 and falls in the direction of the arrow R, leaks into the sorting chamber 50, and most of the material to be processed is sent from the swing shelf 51 toward the sheave 53, and the grain passes through the sheave 53 and the sorting net 63. Street is collected in the first spiral 65a.
In this way, the second product is collected on the swing shelf 51 and reprocessed by the sheave 53, so that the separation between the grain and the sawdust is improved.

  Among the objects to be processed that have reached the end of the object to be processed in the processing chamber 66, short objects such as scraps are thrown in the direction of arrow A2 (FIG. 10) from the dust processing chamber inlet 68a, and the processing chamber 66 enters the dust removal processing chamber 68 by the action of the spiral 71b that makes the intake from 66 favorable, and the dust removal processing chamber 68 is being conveyed in the direction of arrow K (FIG. 10) by the processing teeth 71a of the rotating dust removal processing cylinder 71. It is processed. A spiral 71 b is provided on the upper side of the dust removal processing cylinder 71, and a processing tooth 71 a is provided on the lower side of the dust removal processing cylinder 71.

Leakage (grains) in the processing object mainly composed of sawdust including a small amount of grains that entered the dust disposal chamber 68 leaks onto the swing shelf 51 from the receiving net 76 (FIG. 9). Then, it is guided to the Strollac 62 provided on the swing shelf 51 and is sent from the second shelf 85 to the second handling drum 69b via the second lifting cylinder 87.
According to this embodiment, as shown in FIGS. 11 and 12, the processing cylinder 70 is provided on the lower front side of the handling cylinder 69, and the dust removal processing cylinder 71 is provided on the rear side. As shown in FIGS. 9 and 10, the processing cylinder 70 and the dust removal processing cylinder 71 are positioned on the same axis, and the driving of the processing cylinder 70 and the dust processing cylinder 71 is not shown, but the driving force is supplied from the engine to the pulley. Is done through.

And as shown in FIG. 9, the crossflow fan 91 is provided in the rear part of the threshing apparatus 15, and among the dust discharged | emitted in the threshing apparatus 15 containing the dust removal processing chamber 68, a low specific gravity wood waste, a branch planter, and Air containing dust is sucked by blowing air by rotation of the cross flow fan 91, blown out in the direction of arrow L from the outlet of the cross flow fan, and discharged to the outside of the combine 1.
Of the dust that has fallen from the dust removal processing chamber 68 to the end of the swing shelf 51 as indicated by an arrow M (FIG. 9), those having a small diameter and heavy specific gravity, such as second and third grains, 51 passes through the Strollac 62 or the sheave 53 at the terminal end in the direction of arrow G, leaks to the second shelf 85, and is processed again in the second handling cylinder 69b.

  When the lid 87b shown by the dotted line in FIG. 11 is provided at the entrance of the second lifting cylinder 87 on the second handling cylinder 69b side, the object to be processed does not flow to the second handling cylinder 69b side and is processed in the processing cylinder 70. .

The threshing apparatus of the present invention can be used in a harvested grain processing apparatus such as a combine.

It is a left view of the combine which performs the harvesting operation | work of the grain of embodiment of this invention. It is a top view of the combine of FIG. It is a partially cutaway side sectional view of the combine threshing apparatus of FIG. FIG. 4 is a plan view of the vicinity of a handling cylinder inside the threshing apparatus of FIG. 3. It is the perspective view showing the relationship between the 1st handling cylinder and the 2nd handling cylinder of FIG. FIG. 4 is a simplified front view of the vicinity of the handling cylinder of FIG. 3. FIG. 7A is a simplified view of the vicinity of the barrel of FIG. 4 taken along line AA in FIG. 4 and FIG. 7B is a view taken along line B-B in FIG. FIG. 2 is a transmission mechanism diagram in the vicinity of a handling cylinder of the combine of FIG. 1. It is a partially cutaway side sectional view of a combine threshing apparatus according to another embodiment of the present invention. It is a top view of the vicinity of the handling cylinder inside the threshing apparatus of the combine of FIG. FIG. 10 is an elevational cross-sectional view of the vicinity of the processing cylinder as viewed in the direction of arrows A1-A1 in FIG. 9. FIG. 10 is an elevational cross-sectional view of the vicinity of the dust removal cylinder as viewed from the B1-B1 line in FIG. 9.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 2 Traveling frame 3 Traveling device 4 Crawler 6 Mowing device 7 Weeding device 8 Grain raising device 14 Feed chain 15 Threshing device 18 Vertical auger 19 Horizontal auger 20 Pilot seat 30 Glen tank 50 Sorting part 51 Oscillating shelf 51a Sorting plate 53 Sheave 62 Strollac 63 Sorting Net 64 First Shelf 65 First Grain Cylinder 65a First Spiral 66 Handling Room 67 Processing Room 68 Dust Processing Room 68a Dust Processing Room Entrance 69 Handling Cylinder 69a First Handling Cylinder 69b First 2 treatment cylinder 69c tooth 1 of first treatment cylinder 69d tooth treatment of second treatment cylinder 70 treatment cylinder 70a treatment tooth 71 dust removal treatment cylinder 71a treatment tooth 71b spiral 74 treatment net 75 treatment cylinder reception net 76 reception net 79 Fan 80 Waste chain 80a Waste tip lug 81 Plate material 82, 83, 84 Gear 85 Second shelf board 86 Second spiral 87 Second grain 87a a double-dip AgeKoku tube spiral 87b blade 87c lid 88 guide plate 91 cross flow fan 92, 93 pulley 95 straw discharge processing chamber 96, 97 the drive shaft

Claims (2)

A handling chamber (66) around which a handling cylinder (69a, 69b) provided with tooth handling teeth (69c, 69d) for separating and processing the grains from the cereal grains,
A feed chain (14) for supplying cereals from the conveying start end of the cereal barrels (69a, 69b) to the conveying end;
The second thing which is a mixture containing the normal grain in the to-be-processed object obtained by processing the grain cocoon which passed the handling room (66), and the scorpion grain which the normal grain has stuck in the straw is again In the threshing device provided with the cereal cylinder (87) to be conveyed to the conveying direction terminal end side of the handling barrel (69a, 69b),
The handling cylinders (69a, 69b) are located on the first handling cylinder (69a) positioned on the conveyance direction start end side of the workpiece and on the conveyance direction terminal end side of the workpiece, and the milling cylinder (87 In the cereal bowl which is processed by the feed chain (14) after being threshed in the first handling cylinder (69a) while processing the second product conveyed from the feed chain (14) It consists of a second barrel (69b) that threshs cereal grains that have not been threshed and at the same time processes scorpion grains that are pierced with grains
A handling chamber (66) is partitioned between the first handling cylinder (69a) and the second handling cylinder (69b), and in a direction perpendicular to the axes of the first handling cylinder (69a) and the second handling cylinder (69b). A threshing apparatus comprising a plate member (81) having a flat portion.   The threshing apparatus according to claim 1, wherein the rotation speed of the second handling cylinder (69b) is set to be higher than the rotation speed of the first handling cylinder (69a).

Images