JP2015029502A - Harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harvester in which only the main harvest part of crops is steadily separated, even when a standing crop adopts a falling position, and the efficiency of harvest work can be improved by suppressing the occurrence of dust.SOLUTION: A post-processing unit comprises a separation unit for separating a main harvest part of crops pre-processed by a pre-processing unit. Also, the separation unit comprises: a cylindrical rotating body rotatably operated around an axis line extending in the lateral direction; a large number of separately acting pieces projectingly provided in a circumferential section of the rotating body outwardly, and separately acting on the main harvest part of crops while integrally rotating with the rotating body; and a guide cover body for covering the rotating body from just before the rotating body to the direct upper part and guiding the separated main harvest part in the conveyance direction. Multiple taking-in openings for taking the main harvest part of crops in the rotary body side are formed on a portion facing the pre-processing unit of the guide cover body at intervals in the lateral direction.

Description

  The present invention relates to a harvesting machine, and more particularly, to a harvesting machine that raises a napped crop and separates and harvests a portion to be harvested of the crop.

  Conventionally, there exists what was disclosed by patent document 1 as one form of a harvesting machine. That is, Patent Document 1 discloses a harvesting machine that includes a harvesting unit in front of a self-propelled main body that is capable of self-propelling, and in which a separating unit, a screw conveyor, and a chain conveyor are sequentially arranged in the front-rear direction. Yes. The separation unit is a rotating body formed in a cylindrical shape with the rotation axis directed in the left-right direction, and a portion requiring harvest of napped crops while projecting outwardly on the peripheral surface of the rotating body and rotating integrally with the rotating body And a number of separation action pieces that act to separate each other. And the harvesting required part of the crop separated by the separating part is conveyed to the self-running main body via a screw conveyor and a chain conveyor.

JP2012-82

  However, napped crops do not necessarily take a posture in which the separating action piece of the separating portion is easily separated. In other words, napped crops often take a lying posture under external effects such as wind and rain, and in that case, the separating action piece of the separating part often does not act on the falling crop, There was a problem that unthreshing increased. In addition, when the separation part is placed close to the field scene, it corresponds to napped crops in a lying position, and the separation action piece acts on the stems and leaves other than the harvesting part of the crop to generate a lot of dust. , Dust is also transported to the self-propelled body. For this reason, there is a problem in that the sorting processing burden in the sorting unit of the self-running main body increases and the harvesting operation becomes inefficient.

  Accordingly, the present invention provides a harvesting method that can improve the harvesting work efficiency by firmly separating only the essential harvesting parts of the crops and suppressing the generation of dust even when the napped crops are in a lying posture. The purpose is to provide a machine.

  The harvesting machine according to the first aspect of the present invention is a harvesting machine having a harvesting unit in front of a self-propelled main body capable of self-propelling, and the harvesting unit includes a nap crop in advance and a subsequent post-processing unit. A pre-processing unit that performs pre-processing such as changing to a posture that facilitates post-processing, and a post-processing unit that performs post-processing such as separating the harvested portion of the crop that has been pre-processed by the pre-processing unit are provided. Is provided with a separation unit that separates the harvested portion of the crop that has been pretreated by the pretreatment unit, and the separation unit includes a cylindrical rotating body that rotates about an axis extending in the left-right direction, and a rotating body of the rotating body. A large number of separation action pieces that project outwardly on the peripheral surface portion and rotate integrally with the rotator while separating the crops to be harvested, covering the rotator from immediately before and immediately above the rotator; and A guide cover body for guiding the separated harvesting section in the transfer direction, and a pre-processing section of the guide cover body; The portion facing, characterized in that a plurality formed at intervals the inlet for taking in main crop of the crop to the rotation side in the lateral direction.

  In the harvesting machine configured as described above, the pre-treatment unit can perform the pre-treatment such as changing the posture of the napped crops in advance so that the subsequent post-treatment unit can easily perform the post-treatment. Can be post-processed. Therefore, the post-processing efficiency, for example, the threshing efficiency for threshing grains and the like can be improved. At this time, in the portion facing the pretreatment part of the guide cover body covering the rotator from immediately before the rotator, an intake port for taking in the crop required harvesting part on the rotator side is provided in the left-right direction. A plurality of crops are formed at intervals, and the crop harvesting parts are taken in through the intakes in all the left and right sub-sides of the guide cover body. The parts are uniformly separated by the separating part at a high position above the lower end edge of the guide cover body, and are transferred rearward along the inner surface of the guide cover body. That is, post-processing is performed. As a result, it is possible to reduce so-called loss (scattered grains) in which the harvested portion of the crop is not post-processed and becomes unharvested. Here, the separating portion is formed by a large number of separating action pieces projecting outwardly on the peripheral surface portion of a cylindrical rotating body that rotates around an axis extending in the left-right direction. While acting in the direction of the upper cut from the bottom to the top, it acts to separate the crops that need to be harvested.

  The harvesting machine according to the invention described in claim 2 is the harvesting machine according to the invention described in claim 1, wherein the plurality of intakes are important points of the crop that has been pre-processed by being distributed to a plurality of strips by the pre-processing unit. It is characterized in that it is formed at the position of the corresponding guide cover body in the traveling direction of the harvesting section and the self-running main body.

  In the harvesting machine configured as described above, there are a plurality of intakes at the position of the guide cover body corresponding to the required harvesting part of the crop distributed and preprocessed by the preprocessing part and the traveling direction of the self-propelled main body. Since it is formed, the necessary harvesting part of the pretreated crop is smoothly and steadily taken in from the intake. In this way, the harvested portion of the crop that has been distributed and pre-processed in a plurality of strips is taken in through a plurality of intakes formed at the position of the corresponding guide cover body in the traveling direction of the self-propelled main body. Therefore, the degranulation layer formed between the guide cover body and the peripheral surface portion of the rotating body (the degranulation layer of the required harvesting portion separated by the separation portion) is thinly layered almost uniformly over all the sub-lateral parts of the guide cover body. Can be Therefore, the degranulation layer can be transferred quickly and consistently as a post-treatment. As a result, it is possible to improve the harvesting efficiency of the crop-required portion.

  The harvesting machine according to the invention described in claim 3 is the harvesting machine according to the invention described in claim 2, wherein each intake is closed by a thin plate-like closing body made of an elastic material, and the center of the closing body A slit extending in the up-down direction is formed in the part so that a portion requiring crop harvesting can be taken in through the slit.

  In the harvesting machine configured as described above, the slit formed by extending vertically in the central part of the thin plate-shaped block made of an elastic material is pushed open by the required harvesting part of the preprocessed crop. Then, the crop required harvesting part is taken into the post-processing part side. Then, the pushed slit is elastically restored to the closed state after the crop-required harvesting part is taken into the post-processing part side. Therefore, the harvested portion of the crop that has been once taken into the post-processing unit side is firmly moved rearward along the inner surface of the guide cover body without being scattered to the pre-processing unit side by the closed body elastically restored to the closed state. It is transferred to. As a result, loss (scattered particles) can be further reduced.

  The harvesting machine according to the invention described in claim 4 is the harvesting machine according to the invention described in claim 3, wherein a harvesting required portion of the pretreated crop is provided between a plurality of intakes adjacent in the left-right direction. A guide body that distributes and guides to each intake port is provided.

  In the harvesting machine configured as described above, a guide body that distributes and guides the harvested portions of the pre-processed crops to the respective intakes in a bundle is arranged between a plurality of intakes adjacent in the left-right direction. Therefore, in all the left and right sides of the guide cover body, the harvested portions of the pre-processed crops are distributed to the guide body in a bundle and are guided and guided smoothly and firmly to each intake. It is taken into the separation part through the intake port. Therefore, it is possible to improve the harvesting efficiency in which the necessary harvested product taken from the intake port is post-processed and harvested.

  According to the present invention, even when a napped crop takes a lying posture or the like, the pretreatment unit performs preprocessing such as changing the napped crop in advance to a posture in which a subsequent postprocessing unit can easily perform postprocessing. Therefore, it is possible to steadily separate only the crop harvesting portion and suppress the generation of dust. Then, the rotating body is covered from a position immediately before the rotating body to a position directly above by a guide cover body that is formed with a plurality of intake openings in the left-right direction for taking in the crop required harvesting part on the rotating body side. Therefore, it is possible to suppress the harvested part separated by the separation part from being scattered to the pretreatment part side through the intake and becoming an unharvested product. As a result, in the present invention, the harvesting work efficiency of the harvester can be improved.

The side view of the combine which concerns on this embodiment. The front view of the combine which concerns on this embodiment. The top view of a harvesting part. Side explanatory drawing of a harvesting part. The top view (a), front view (b), side view (c), and perspective view (d) of a guide cover body. The control block diagram of a harvesting part. Explanatory drawing of raising / lowering control of a harvesting part. The power transmission diagram of the combine which concerns on this embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. That is, the normal type applied to the present embodiment as a harvesting machine that causes a napped crop C grown in the field G with reference to FIGS. 1 to 3 and separates and harvests the harvesting portion Cm of the crop C. The structure of combine (hereinafter referred to as “combine”) A will be described.

  The combine A arranges the airframe 2 directly above the pair of left and right crawler type traveling portions 1, 1 to constitute the self-propelled main body 3, and the harvesting portion 4 is attached in front of the airframe 2 of the self-propelled main body 3. . In the airframe 2, the threshing unit 5 and the sorting unit 6 are arranged in the upper and lower stages on the left side, and the waste disposal unit 7 is arranged immediately after these, while the driving unit 8 is arranged on the right side, and then the engine 9 ( A prime mover part such as FIG. 8) is arranged, and a grain storage part (Glen tank) 10 is arranged behind them. An unloading auger (not shown) for unloading the grains stored therein to a truck bed, a container or the like is connected to the grain storage unit 10 in a continuous manner. Reference numeral 11 denotes an airframe frame that supports the airframe 2.

  In the combine A configured as described above, the harvesting unit 4 needs to harvest the napped crop C while the self-propelled main body 3 with the harvesting unit 4 attached in front of the field G where the napped crop C is grown. Part Cm is harvested, the harvested required harvesting part Cm is transported to the threshing part 5, the harvesting part Cm is threshed by the threshing part 5, and the grain threshed by the threshing part 5 is sorted by the sorting part 6, The refined grain (first grain) sorted by the sorting unit 6 is conveyed to the grain storage unit 10 and stored. The refined grain (first grain) stored in the grain storage unit 10 is appropriately transported to a truck bed, a container, or the like via a transporting auger. Further, the waste sorted out by the sorting unit 6 is transported to the waste disposal unit 7 and is subjected to a waste disposal process (it is discharged out of the machine or is cut out and then discharged out of the machine).

  Next, the configuration of the harvesting unit 4 will be described with reference to FIGS. That is, the harvesting unit 4 is pre-processed by the pre-processing unit 20 and the pre-processing unit 20 that perform pre-processing such as changing the posture of the napped crop C in advance so that the subsequent post-processing unit 21 can easily perform post-processing. A post-processing unit 21 that performs post-processing such as separating the crop C required harvesting part Cm is provided. The pre- and post-processing units 20 and 21 are provided with a harvesting transmission unit 12 to transmit power from the engine 9 to the harvesting transmission unit 12 as will be described later. A processing operation is appropriately performed. Here, the crop C is, for example, rice, wheat, soybean, corn and the like.

  The pre-processing unit 20 is attached to the post-processing unit 21 and is freely movable up and down between a lowered position that can be pre-processed close to the field G surface and a raised position that is separated from the farm scene and cannot be pre-processed. ing.

  The post-processing unit 21 includes a separation unit 22 that separates the required harvesting part Cm of the napped crop C, a collection unit 23 that collects the required harvesting part Cm separated by the separation unit 22, and a key collected by the collection unit 23. A transport unit 24 that transports the harvesting part Cm to the self-propelled main body 3 and a cutting part 25 that cuts the crop from which the harvesting part Cm is separated by the separating unit 22 (stalk-and-knot part Ck) are provided. And the post-processing part 21 arrange | positions the collection part 23 just behind the separation part 22, and arrange | positions the cutting | disconnection part 25 below the collection part 23, and the cutting | disconnection part 25 is the descent | fall position and collection which are close to the agricultural field G surface. It can be moved up and down between the raised position close to the portion 23.

  In the harvesting machine configured as described above, the pre-processing unit 20 can perform pre-processing such as changing the posture of the napped crop C in advance to a posture that the subsequent post-processing unit 21 can easily perform post-processing. By the part 21, the napped crop C can be steadily post-treated. Therefore, the post-processing efficiency, for example, the threshing efficiency for threshing grains and the like can be improved. Moreover, the pre-processing unit 20 is attached to the post-processing unit 21 and moves up and down between a lowered position that can be pre-processed close to the field G plane and a raised position that is separated from the field G plane and cannot be pre-processed. Since it is free, the pre-processing unit 20 can be moved up and down as appropriate while the post-processing unit 21 arranged at a predetermined ground level is held at the same level as the ground level. Therefore, as shown in FIG. 4, at the time of heel B, the pre-processing unit 20 is raised to a position higher than the heel B, and the pre-processing unit 20 is disposed close to the heel B, thereby pre-processing unit 20. Thus, the post-processing section 21 can directly post-process the napped crop C at the time of cocoon B without pre-processing. Thus, since the post-processing work by the post-processing unit 21 at the time of cocoon B can be performed, there is no need to manually cut the harvested portion Cm of the napped crop C at the time of cocoon B.

  Subsequently, the required harvesting part Cm separated by the separation part 22 can be collected by the collecting part 23, and the necessary harvesting part Cm collected by the collecting part 23 is transported to the self-propelled main body 3 by the transporting part 24. Can do.

  Under the present circumstances, the cutting part 25 which became free to raise / lower between the descent | fall position close | similar to the agricultural field G surface and the raising | positioning position close | similar to the collection part 23 is arrange | positioned under the collection part 23 arrange | positioned just behind the separation part 22 Therefore, the harvested portion Cm of the napped crop C separated by the separating unit 22 is collected by the collecting unit 23, while the stem portion Ck of the napped crop C from which the necessary harvested portion Cm is separated is the cutting unit. 25, it is possible to cut at a desired ground height position (desired cutting height).

  Next, the configuration of the harvesting unit 4 will be described more specifically. That is, the harvesting unit 4 includes a post-processing unit 21 whose base end is pivotally supported by the body 2 so as to be swingable about a horizontal axis, and a base end of the post-processing unit 21 that swings about a horizontal axis. It comprises a pre-processing section 20 that is mounted so as to be movable up and down via a pair of left and right support arms 26 and 26 that are pivotally supported and extend in the front-rear direction. A harvesting unit lifting cylinder 37 is interposed between the post-processing unit 21 and the front end of the machine body frame 11 (see FIG. 7), and the harvesting unit 4 can be lifted and lowered in conjunction with the expansion and contraction operation of the harvesting unit lifting cylinder 37. There is no.

  First, the post-processing unit 21 of the harvesting unit 4 will be described. That is, the post-processing unit 21 includes the transport unit 24, the collection unit 23, the separation unit 22, and the cutting unit 25 as described above. The transport unit 24 includes a rectangular cylindrical feeder house 30 extending in the front-rear direction, and a supply conveyor 31 disposed in the feeder house 30. The feeder house 30 is arranged on the lower left side of the operation unit 8 and pivotally supports a base end portion (rear end portion) at the front portion of the machine body 2 so as to be swingable about a horizontal axis. The supply conveyor 31 spans a driven shaft 32 and a drive shaft 33 with the axis line in the left-right direction at the front and rear in the feeder house 30 and is attached to the left and right side portions of the shafts 32 and 33. A chain conveyor 36 is wound between them. Then, the harvested portion separated and collected between the lower conveyance side of the chain conveyor 36 and the lower surface portion of the feeder house 30 is conveyed to the threshing portion 5. The feeder house 30 is pivotally supported on the base end coaxially with the drive shaft 33, and a harvesting part lifting cylinder 37 is interposed between the lower halfway part and the front end part of the machine body frame 11 to raise and lower the harvesting part. By operating the cylinder 37 to extend and contract, the ground clearance of the harvesting section 4 can be set as appropriate.

  The collection unit 23 is formed in a casing shape that is substantially the same width as the left and right width of the machine body 2 and has a front opening, and includes a platform 40 and a scraping auger 41 that is horizontally mounted in the platform 40. The platform 40 includes left and right side surfaces 42, 42, a back surface portion 43, and a bottom surface portion 44, and the left side portion of the back surface portion 43 is connected to the front end opening (loading port portion) of the feeder house 30. A striking auger 41 with the rotation axis oriented in the left-right direction is horizontally placed between the right side surfaces 42, 42. The scraping auger 41 scrapes the required harvested portion separated by the separating portion 22 into the platform 40 and horizontally feeds it into the front end opening portion (loading inlet portion) of the feeder house 30. The front end portion of the harvesting part lifting cylinder 37 is connected to the lower center portion of the back surface portion 43 of the platform 40 via a cylinder connection bracket 38.

  The separation part 22 is disposed in the front part in the platform 40, and a rotating body 50 that is rotatably supported between the left and right side parts 42, 42 of the platform 40 and a number of separations attached to the rotating body 50. An action piece 51 and a guide cover body 52 provided between the left and right side surfaces 42 and 42 of the platform 40 so as to cover the rotating body 50 and the separation action piece 51 are provided. The rotator 50 is formed in a cylindrical shape, and a rotator shaft 114 extending in the left-right direction is mounted between the left and right side surface portions 42, 42 of the platform 40 so as to be rotatable about its axis. A large number of separating action pieces 51 project outwardly (in the radial direction) on the peripheral surface portion of the rotating body 50, and separate and act on the harvesting required part Cm of the crop C while rotating integrally with the rotating body 50. The guide cover body 52 is formed in an arc shape when viewed from the side, covers the rotator 50 from immediately before the rotator 50 and directly above the rotator 50, and guides the separated harvesting portion Cm in the transfer direction (rearward).

  As shown in FIG. 5, in the portion of the guide cover body 52 that faces the pretreatment unit 20, an intake port 53 for taking in the harvesting portion Cm of the crop C to the rotating body 50 side is spaced in the left-right direction. Are formed. The plurality of intakes 53 are formed at the position of the guide cover body 52 corresponding to the harvesting portion Cm of the crop C that is distributed and preprocessed by the preprocessing unit 20 in the traveling direction of the self-propelled main body 3. Each intake 53 is a notch that extends in the vertical direction and opens in the front-rear direction and downward so that the harvested portion Cm of the crop C is taken in the raised position. Each intake port 53 is closed by a thin plate-like closing body 54 made of an elastic material, and a slit 55 extending in the vertical direction is formed in the central portion of the closing body 54 so as to produce a crop through each slit 55. It is assumed that the harvesting portion Cm of C can be taken. Between the plurality of intake ports 53 adjacent to each other in the left-right direction, a guide body 56 that distributes and guides the harvested portion Cm of the preprocessed crop C to each intake port 53 in a bundle shape is disposed. ing.

  In the separation unit 22 configured as described above, a portion Cm that needs to be harvested for the crop C is provided in a portion facing the pretreatment unit 20 of the guide cover body 52 that covers the rotator 50 from immediately before and immediately above the rotator 50. Since the intake port 53 for taking in to the rotating body 50 side is formed by extending in the up-down direction, and a plurality is formed at intervals in the left-right direction, the crop C in all the left-right directions of the guide cover body 52 The required harvesting portion Cm is smoothly taken in through each intake port 53. The required harvesting portion Cm of the crop C taken through each intake port 53 is uniformly separated from the stalk portion Ck by the separating portion 22 over all the left and right sides of the guide cover body 52 and the inner surface of the guide cover body 52. Along the back. That is, post-processing is performed. Here, the separating portion 22 includes a large number of separating action pieces 51 projecting outward from a peripheral surface portion of a cylindrical rotating body 50 that rotates around an axis extending in the left-right direction. Rotation, for example, acts to separate the harvesting portion Cm of the crop C from the stalk portion Ck while rotating in the upper cut direction from the bottom to the top.

  And in the position of the guide cover body 52 corresponding in the advancing direction of the self-propelled main body 3 and the harvesting required portion Cm of the crop C that is distributed and preprocessed by the preprocessing unit 20, a plurality of intake ports 53 are provided. Is formed, the harvested portion Cm of the preprocessed crop C is smoothly and steadily taken in from the intake port 53. In this way, the harvested portion Cm of the crop C that has been distributed and pre-processed in a plurality of strips is taken in through the plurality of intake ports 53 that are formed at the position of the corresponding guide cover body 52 in the traveling direction of the self-propelled main body 3. Therefore, the degranulation layer (the degranulation layer of the required harvesting part Cm separated by the separation unit 22) formed between the guide cover body 52 and the peripheral surface portion of the rotating body 50 is used as the guide cover body 52. It is possible to make a thin layer almost uniformly over all the subs in the left-right direction. Therefore, the degranulation layer can be transferred quickly and consistently as a post-treatment. As a result, the loss of the crop required portion Cm of the crop C can be reduced and the harvest efficiency can be improved.

  In addition, the slit 55 formed by cutting vertically in the center of the thin plate-like obturator 54 made of an elastic material is pushed open by the required harvesting part Cm of the pre-processed crop C to be post-processed. The portion Cm requiring harvest of the crop C is taken into the portion 21 side. And the slit 55 of the obstruct | occluded body 54 pushed open is elastically restored to the obstruction | occlusion state, after the harvesting required part Cm of the crop C is taken in into the post-processing part 21 side. Therefore, the harvesting required portion Cm of the crop C once taken into the post-processing unit 21 side is elastically restored to the closed state, and scattering to the pre-processing unit 20 side is suppressed by the closing body 54, so that the inner surface of the guide cover body 52 is Along the back.

  At this time, a guide body 56 is provided between the plurality of intake ports 53 adjacent in the left-right direction to distribute and guide the harvested portion Cm of the pre-processed crop C to each intake port 53 in a bundle. Therefore, in all the left and right sub-directions of the guide cover body 52, the harvested portion Cm of the preprocessed crop C is distributed to the guide body 56 in a bundle shape and smoothly and firmly guided to each intake port 53. Then, the gas is taken into the separation unit 22 through the guided intake port 53. Therefore, it is possible to further improve the harvesting efficiency in which the required crop Cm taken from the take-in port 53 is post-processed and harvested.

  Next, the preprocessing unit 20 of the harvesting unit 4 will be described. That is, as shown in FIG. 4, the pretreatment unit 20 is configured by attaching the pulling device 60 to the platform 40 via a pair of left and right support arms 26, 26 so as to be movable up and down. That is, the base end portions (rear end portions) of the pair of left and right support arms 26 and 26 extending in the front-rear direction are disposed at the rear upper portions of the left and right side surface portions of the platform 40, and the pivots 61 and 61 with the axis lines directed in the left and right directions. The upper end portion of the pulling device 60 is attached in a erected manner between the front end portions (front end portions) of the support arms 26, 26, and the middle portions of the support arms 26, 26 and the left and right side surface portions 42, The pre-processing unit lifting cylinders 62, 62 are interposed between the outer surface and the middle part of the outer surface 42, and the pre-processing unit lifting cylinders 62, 62 are expanded and contracted to appropriately set the pre-processing unit 20 to a desired ground height. It is possible.

  As shown in FIGS. 2 and 3, the pulling device 60 has three sets of upper ends including a pair of left and right pulling bodies 71 and 72 in the support and transmission case 70 extending in the left-right direction in this embodiment. The part is attached to the left and right sides in a hanging shape, so that the nap crops of 6 strips can be raised upward. That is, the pair of left and right pulling bodies 71 and 72 cause the tine to protrude horizontally in the left-right direction and move both tines from below to above, thereby moving the adjacent raised nap crops C upward and backward. The harvesting portion Cm is arranged while being raised. Reference numeral 73 denotes a herbaceous body that splits the napped crop C in the left-right direction.

  The required harvesting part Cm gathered while being raised rearward and upward between the pair of left and right pulling bodies 71 and 72 is divided into a plurality of strips (three strips in the present embodiment) in the lateral width direction by the guide body 56 disposed in a rearward facing state. ). In other words, in the pulling device 60, the harvesting portions Cm of the six napped crops C are gathered while being pulled up rearward and upward in three strips, and thereafter, the harvesting portions Cm for three strips are gathered in the guide cover body 52. The three guide bodies 56 disposed at the three positions of the left right side and the center are distributed substantially equally in nine lines in the left-right width direction. A large number of separating action pieces 51 projecting from the peripheral surface portion of the rotating body 50 are steadily acted on the harvesting portion distributed in nine strips over the entire left and right width of the guide cover body 52, so that the harvesting portion is required. Cm can be separated efficiently.

  In the present embodiment, the guide cover body 52 is a semi-cylindrical shape extending in the left-right direction so as to cover the rotating body 50 from immediately before the rotating body 50 to a directly upper side, and in a circular arc shape with the side end convex upward. And formed between the left and right side surfaces 42 and 42 of the platform 40. Three sets of intake ports 53 are formed at three positions on the left and right side portions and the central portion of the guide cover body 52, that is, between the respective pulling bodies 71 and 72 of the pulling device 60 and at positions facing the front and rear. . The intake port 53 extends in the vertical direction from the front end edge portion of the guide cover body 52 to the front surface portion, and is formed so as to widen from the upper end toward the lower end. On the inner surface of the guide cover body 52, three thin rectangular plate-like closing bodies 54 made of an elastic rubber material are attached in a surface contact state, and a set of three intakes 53 is closed from behind by the closing body 54. ing. A slit 55 extending in the vertical direction is formed in the portion of each closing body 54 that is located at the center in the width direction of each intake port 53 so as to extend up and down the full width of each intake port 53. The guide body 56 is formed on the front surface of the guide cover body 52 by bending a strip-shaped guide book piece 57 along the side edge of a set of three intake ports 53 in a meandering manner when viewed from the front, and forward. Projecting toward. The front lower end portion of the guide body 56 is a projecting end 59 that is directed forward and downward, and the projecting end 59 is formed in a sharp shape. Dust or the like accumulates on the front surface of the guide cover body 52 via the bent portion of the guide book piece 57 between the front end edges of the guide book piece 57 positioned between the intake ports 53 adjacent to the left and right. A cover 58 for preventing deposition is stretched to prevent this. Therefore, dust or the like does not slide and accumulate on the front surface of the guide cover body 52 or the upper surface of the deposition preventing cover piece 58.

  The rotating body 50 covered immediately before and immediately above by the guide cover body 52 is formed in a substantially octagonal cylindrical shape, and a large number of separating action pieces are arranged on each surface in the axial direction of the rotating body 50. A group of a large number of separating action pieces 51 is formed in a comb shape by aligning and projecting 51 outward (radial direction). That is, a group of comb-like separation action pieces 51 is provided on the eight sides of the rotating body 50 in a protruding manner. Then, the rotating body 50 is rotated so that the separation action piece 51 separates and acts on the required separation part of the crop in the upper cut direction from the lower side to the upper side.

  In the separation part 22 configured as described above, the harvesting parts gathered into one line by the pulling device 60 are distributed to the three inlets 53 at the center part and the left and right side parts by the sharp projecting ends 59. And is taken inward of the guide cover body 52 through a slit 55 formed in a closing body 54 that closes each intake port 53. And in the separation part of the 9 crops taken inward of the guide cover body 52, the separation action piece 51 protruding from the rotating body 50 acts to separate the upper cut direction from the lower side to the upper side. , Separating the necessary separation part steadily. The separated required separation parts are collected by the collecting part 23 and conveyed to the self-running main body 3 by the conveying part 24.

  Next, the cutting unit 25 will be described. In other words, the cutting portion 25 includes arm support shafts 81 having base ends (rear ends) of cutting blade support arms 80, 80 extending in the front-rear direction on the left and right sides of the front end of the body frame 11 with their axes directed in the left-right direction. A clipper-type cutting blade 82 formed by extending in the left-right direction between the distal end portions of the cutting blade support arms 80 and 80 is horizontally mounted. 83 is a cutting transmission part for transmitting a cutting driving force from the engine 9 to the cutting blade 82, and 84 is a cutting blade lifting cylinder which is interposed between the platform 40 and the cutting blade support arm 80 and moves the cutting blade 82 up and down. is there. The cutting blade 82 is disposed below the collecting unit 23 and is movable up and down between a lowered position close to the field G plane and an elevated position close to the collecting unit 23. The stalk part Ck of the crop C from which the part has been separated can be cut at a desired ground height (desired cutting height).

  In the harvesting section 4 configured as described above, the harvesting section lifting cylinder 37 that lifts and lowers the entire harvesting section 4 and the preprocessing section lifting cylinder 62 that lifts and lowers only the preprocessing section 20 are individually lifted and lowered. Or can be moved up and down in opposite directions in conjunction with each other.

  In other words, the operating unit 8 includes a first operation unit 90 for extending / lowering the harvesting unit lifting / lowering cylinder 37 (harvesting unit 4), and a harvesting unit lifting / lowering cylinder 37 (post-processing unit 21). (Descent) A fine adjustment operation is performed, and the pre-processing unit elevating cylinder 62 (pre-processing unit 20) is shortened (down), extended (ascended), and a second operation unit 91 for fine adjustment operation, and the pre-processing unit elevating cylinder 62 ( A third operation unit 92 for extending / retracting (elevating / lowering) the pretreatment unit 20) alone is disposed so as to be seated.

  As shown in FIG. 6, these operation units 90 to 92 are electrically connected to the input side of a control unit 93 including a CPU (Central Processing Unit), a ROM ((Read Only Memory), a RAM (Random Access Memory), and the like. The first and second electromagnetic valves 94 and 95 are electrically connected to the output side of the control unit 93. The control unit 93 is disposed at a desired location such as the operation unit 8. The electromagnetic valve 94 is provided in a hydraulic circuit for extending and retracting the harvesting unit lifting cylinder 37, and the expanding and contracting operation of the harvesting unit lifting cylinder 37 is interlocked with the opening and closing operation of the first electromagnetic valve 94. , Provided in a hydraulic circuit for extending and retracting the pre-processing unit lifting / lowering cylinder 62, the expansion / contraction operation of the pre-processing unit lifting / lowering cylinder 62 is interlocked with the opening / closing operation of the second electromagnetic valve 95. At the pivotal part, feeder house 30 and then harvesting part 4 Is provided with a first posture detector 96 (for example, a potentiometer) that detects the vertical posture (in this embodiment, the vertical angle). 20 is provided with a second attitude detector 97 (for example, a potentiometer) that detects the up / down attitude (in this embodiment, the elevation angle), and these attitude detectors 96 and 97 are provided on the input side of the controller 93. Electrically connected, detection information detected by these posture detection units 96 and 97 is input to the control unit 93.

  In the combine A configured as described above, when the second operation unit 91 is operated, the detection result of the first posture detection unit 96 and the detection result of the second posture detection unit 97 hold a preset relative relationship. As described above, the control program programmed to operate the post-processing unit 21 and the pre-processing unit 20 in the opposite directions in conjunction with each other is stored in the ROM of the control unit 93. That is, when the second operation unit 91 is operated so as to finely adjust the harvesting unit lifting cylinder 37 (post-processing unit 21) to extend (rise) / shorten (down), the operation signal is input to the control unit 93, A control program stored in the ROM is read into the RAM, and posture control of the harvesting unit 4 is executed according to the control program. At this time, the detection information of the first and second posture detection units 96 and 97 is also input to the RAM of the control unit 93, and based on the detection information, the pre-adjustment operation of the harvesting unit elevating cylinder 37 is performed at the same time. The processing unit elevating cylinder 62 (preprocessing unit 20) is finely adjusted to be shortened (down) and extended (ascended) to quickly bring the preprocessing unit 20 into an initial setting posture (a posture in which the lower end is close to the field G plane). The control program described above is executed. That is, the reciprocal elevation control of the pre / post-processing units 20 and 21 in the harvesting unit 4 is performed at the same time.

  For example, as shown in FIG. 7 (a), the first operating unit 90 is operated to shorten the harvesting unit elevating cylinder 37, thereby arranging the harvesting unit 4 at the harvesting work position close to the field G plane. To do. Then, as shown in FIG. 7 (b), by operating the second operating portion 91 to extend the harvesting portion lifting cylinder 37 and finely adjust the post-processing portion 21 to the ascending side U, it is linked to it. Then, the pre-processing unit lifting cylinder 62 is shortened and the pre-processing unit 20 is finely adjusted to the lowering side D. That is, although the post-processing unit 21 is finely adjusted, the pre-processing unit 20 is restored and arranged at the initial harvesting work position at the same time, and as a result is held at the initial harvesting work position. Further, when the post-processing unit 21 is finely adjusted by operating the second operation unit 91, the pre-processing unit 20 is similarly held at the initial harvesting work position.

  In addition, as shown in FIG. 4, when the post-processing unit 21 performs the post-processing directly without pre-processing the napped crops C on the side of the cocoon B by the pre-processing unit 20, the third operation is performed. The unit 92 is operated. When this third operation unit 92 is operated, the pre-processing unit lifting cylinder 62 (pre-processing unit 20) can be independently expanded and contracted (lifted). Therefore, while raising the pre-processing part 20 to the ascending side U to the position higher than the cocoon B, the post-processing part 21 can be disposed close to the cocoon B, and the post-processing part 21 appropriately crops the cocoon B. C required harvesting part Cm can be post-processed.

  Next, the power transmission structure of the combine A will be described with reference to FIG. That is, the power transmission structure of the combine A has a first transmission mechanism 103 between the first output shaft 101 and the first counter shaft 102 of the engine 9 forming a part of the prime mover unit 9 as shown in FIG. It is installed. A second transmission mechanism 104 is interposed between the first counter shaft 102 and the second counter shaft 100. A third transmission mechanism 106 is interposed between the second counter shaft 100 and the first PTO shaft 105. A transmission gear case 108 is interposed between the first PTO shaft 105 and the second PTO shaft 107. A fourth transmission mechanism 109 is interposed between the second PTO shaft 107 and the drive shaft 33 of the supply conveyor 31. A fifth transmission mechanism 111 is interposed between the driven shaft 32 of the supply conveyor 31 and the third counter shaft 110. A sixth transmission mechanism 113 is interposed between the third counter shaft 110 and a take-up auger shaft 112 that is a rotation support shaft of the take-up auger 41. A seventh transmission mechanism 115 is interposed between the take-in auger shaft 112 and the rotating body shaft 114 that is a rotating support shaft of the rotating body 50. An eighth transmission mechanism 117 is interposed between the rotating body shaft 114 and the first pulling shaft 116 pivoted in the support and transmission case 70 of the pulling device 60. A ninth transmission mechanism 119 is interposed between the first pulling shaft 116 and the transmission shaft 118 to each pulling body. A tenth transmission mechanism 121 is interposed between the third counter shaft 110 and the fourth counter shaft 120. An eleventh transmission mechanism 123 is interposed between the fourth counter shaft 120 and the cutting blade drive shaft 122 that drives the cutting blade 82.

  A twelfth transmission mechanism 131 is interposed between the first counter shaft 102 and the first rotor drive shaft 130. A thirteenth transmission mechanism 133 is interposed between the first rotor drive shaft 130 and the second rotor drive shaft 132. A fourteenth transmission mechanism 136 is interposed between the second rotor drive shaft 132 and the rotor shaft 135 which is a support shaft of the rotor 134 pivoted on the threshing unit 5.

  A fifteenth transmission mechanism 142 is interposed between the second PTO shaft 107 and a prefan shaft 141 that is a support shaft of the prefan 140 disposed in the sorting unit 6. A sixteenth transmission mechanism 145 is interposed between the second PTO shaft 107 and the Karatsu shaft 144 that is a support shaft of the Karatsu 143 disposed in the sorting unit 6. A second conveyor shaft 147 which is a support shaft of the first conveyor 146 disposed on the second PTO shaft 107 and the sorting unit 6; a second fan shaft 149 of the second fan 148; and a swing sorting shaft 151 of the swing sorter 150; A seventeenth transmission mechanism 152 is interposed therebetween. An eighteenth transmission mechanism 155 is interposed between the swing sorting shaft 151 and the second conveyor shaft 154 that is a support shaft of the second conveyor 153.

A Combine 1 Traveling part 2 Airframe 3 Self-propelled body 4 Harvest part 20 Pre-processing part 2
21 Post-processing section 22 Separating section 23 Collection section 24 Transport section 25 Cutting section 26 Support arm

Claims (4)

A harvester equipped with a harvesting part in front of the self-propelled main body capable of self-propelling,
In the harvesting section, a pre-processing section that performs pre-processing such as changing the napped crops in advance to a posture that can be easily post-processed by the subsequent post-processing section, and a section that requires crops pre-processed by the pre-processing section A post-processing section for post-processing such as
The post-processing unit includes a separation unit that separates the harvested portion of the crop pre-processed by the pre-processing unit, and
The separation part is a cylindrical rotating body that rotates around an axis extending in the left-right direction, and protrudes from the peripheral surface of the rotating body so as to separate and act on the crop-required part while rotating integrally with the rotating body. A large number of separating action pieces, and a guide cover body that covers the rotating body from immediately before the rotating body and directly above the rotating body and guides the separated harvested portion in the transfer direction,
A harvesting machine characterized in that a plurality of intakes for taking in a required harvesting part of a crop on the rotating body side are formed at a part facing the pretreatment part of the guide cover body at intervals in the left-right direction. The plurality of intakes are formed at the position of the guide cover body corresponding to the required harvesting part of the crop distributed and preprocessed by the preprocessing unit and the traveling direction of the self-propelled main body. Item 1. Harvesting machine. Each intake is closed by a thin plate-shaped block made of an elastic material, and a slit extending in the vertical direction is formed in the central portion of the block to take in the harvested portion of the crop through the slit. The harvesting machine according to claim 2, wherein the harvesting machine is made possible. A guide body is provided between a plurality of intakes adjacent to each other in the left-right direction, and guides for distributing and guiding the harvested portions of the pre-processed crops to the respective intakes in a bundle. 3. The harvester according to 3.

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