JP2009201474A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate mounting and demounting of a driving member (for example, a reaping blade device) which contacts grain stalks while reciprocating driving or rotary driving in a combine harvester. <P>SOLUTION: The combine harvester is integrally unitized a knife head 121 as a power transmitting section which receives driving power from an engine on laterally a long reaping blade device 52 as a driving member located downward of a reaping frame 51 constituting a frame of a reaping device 3. A guiding rail 106 as a supporting member for detachably supporting a cutting blade receiving plate 107 in a state enchasing the rear part of the plate by sliding from right and left sides, is fixed on the lower plane of the reaping frame 51. Therefore, the reaping blade device 52 can be replaced as a unit including the knife head 121. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a combine that harvests uncut cereal grains in a field with a reaping device and threshs the harvested cereal grains with a threshing device.

Conventionally, a combine harvester harvests a traveling machine body equipped with an engine, a traveling crawler as a left and right traveling unit that supports the traveling machine body, a driving unit having a steering handle and a driving seat, and an uncut grain culm in a field. It is provided with a reaping device and a threshing device for threshing the harvested cereal, and is configured to continuously harvest and thresh uncut cereal on the field (for example, patent) Reference 1 etc.).
Japanese Utility Model Publication No. 62-53621

  By the way, each of the above-described devices is provided with a drive member that contacts the cereal while being reciprocally driven or rotationally driven. For example, the reaping device has a clipper-type cutting blade device, a grain raising device, and the like, and the threshing device has a rotary barrel. These drive members are consumables that are easily worn by contact with the cereal basket and require regular maintenance and replacement.

  However, since such maintenance / replacement work has generally been requested to dealers and manufacturers, the ease of attaching and detaching drive members (maintenability) is often not considered in the combine. The drive member is not a cassette structure and is difficult to attach and detach, and there is a problem that the drive member mounting / removing operation is very troublesome and the workability is poor.

  The main object of the present invention is to improve the current situation and to make it possible to easily replace the drive member by constructing the drive member in a so-called cassette type.

  The invention of claim 1 is a reaping device for reaping uncut cereal cocoons in a field, a threshing device for threshing the reaped cereals supplied from the reaping device, and an evacuation for cutting the culling discharged from the threshing device. A sever cutting device, each of the devices is a combine having a drive member that comes into contact with the culm while reciprocating or rotating, and the drive member receives a driving force from a power source. The power transmission unit for receiving is integrally provided as a unit, and the drive member is detachably attached to the support member that supports the drive member in a drivable manner.

  According to a second aspect of the present invention, in the combine according to the first aspect, the drive member is a laterally long cutting blade device disposed below a cutting frame constituting the framework of the cutting device, On the lower surface, a guide rail is fixed as the support member that is detachably held in a state in which the rear side of the cutting blade device is slid and fitted in the left-right direction.

  According to a third aspect of the present invention, in the combine described in the second aspect, the right and left side portions of the reaping device can be changed to a working posture projecting outward in the left-right direction and a storage posture close to the reaping device. A side divider is provided, and a portion of the lower surface of the cutting frame close to the side divider is interlocked with a posture changing movement of the side divider and surrounds the cutting edge side of the cutting blade device and the cutting edge. A safety cover which can be changed in posture is attached to a retracted posture away from the side.

  According to a fourth aspect of the present invention, there is provided the combine according to the first aspect, wherein the drive member is a pulling case with a pulling tine that raises an uncut cereal crop in the field, and the vertical pulling drive pipe in the reaping device. The back surface of the pulling case is detachably connected via the pulling gear case as the support member, and the pulling drive shaft as a power transmission portion protruding outward from the back surface of the pulling case is provided in the pulling gear case. The gear mechanism is detachably fitted to the gear mechanism.

  According to a fifth aspect of the present invention, in the combine according to the first aspect, the driving member is a handling cylinder rotatably disposed in a handling chamber of the threshing apparatus, and serves as the support member that divides the handling chamber. A handling cylinder shaft for rotating the handling cylinder is mounted in a guide groove having an upward opening formed in the front and rear partition walls so that the handling cylinder can be pulled up, and the tip of the handling cylinder shaft is rotated as the power transmission unit. A pulley is provided.

  A sixth aspect of the present invention is the combine cutter according to the first aspect, wherein the drive member is a waste cutter as a waste cutting device that is rotatably disposed in a waste case at the rear of the threshing device. A cutter shaft for rotating the waste cutter is mounted in an upwardly opening guide groove formed in the left and right side plates as the support member of the waste case so as to be able to be pulled up, and the tip of the cutter shaft The part is provided with a rotation input pulley as the power transmission part.

  According to the present invention, the drive member that contacts the cereal while reciprocating or rotating is provided with a power transmission unit that receives the driving force from the power source as a unit, and the drive member is supported to be driven. The drive member is attached to the support member so as to be replaceable together with the power transmission unit, and the drive member has a so-called cassette type structure. Therefore, the drive member is attached to the support member. Each unit can be easily attached or removed (in a cassette style). Therefore, there is an effect that maintenance and replacement work is easy.

  Any of the inventions of claim 2 and below is a more specific embodiment of the invention of claim 1. According to the invention of claim 2, the drive member is a horizontally long cutting blade device disposed below a cutting frame constituting the framework of the cutting device, and the cutting blade device is disposed on a lower surface of the cutting frame. Since the guide rail as the support member that is detachably held in a state where the rear side is slid from the left and right direction is fixed, the cutting blade device that is a heavy object is used as the support member. It can be taken in and out while sliding along the longitudinal direction of the guide rail. Therefore, such an insertion / removal operation can be executed smoothly, and the burden on the operator can be reduced.

  According to the invention of claim 3, the left and right side portions of the reaping device are provided with side dividers that can be changed in posture between a working posture protruding outward in the left-right direction and a storage posture close to the reaping device, At the part near the side divider of the lower surface of the cutting frame, the posture is changed to a mounting posture surrounding the blade edge side of the cutting blade device and a retracting posture away from the blade edge side in conjunction with the posture changing movement of the side divider. Since the changeable safety cover is attached, when the cutting blade device is attached or detached, the safety cover surrounds the cutting edge side of the cutting blade device in a side view. For this reason, there is an advantage that the risk of injury due to the operator touching the blade edge side of the cutting blade device can be reduced, and safety is high.

  When the inventions according to claims 4 to 6 are employed, the drive member that is easily worn by contact with the cereal basket such as the pulling case, the handling cylinder, and the waste cutter is easily attached and detached in units of units (cassette type) together with the power transmission unit. Therefore, as described above, the maintenance and replacement workability is good. In particular, according to the invention of claim 4, the cassette case (unit) can be easily attached to the pulling case and the pulling gear case in a state where power can be transmitted without impairing the ease of attachment and detachment. It can be highly effective.

  DESCRIPTION OF EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings (FIGS. 1 to 16). 1 is a left side view of the combine, FIG. 2 is a right side view of the combine, FIG. 3 is a plan view of the combine, FIG. 4 is a left side sectional view of the threshing device, FIG. 5 is a right side view of the lower part of the reaping device, FIG. Is a plan view of the lower part of the cutting device, FIG. 7 is an enlarged right side view of the cutting blade device, FIG. 8 is a schematic front view showing the inside of the pulling case, and FIG. 9 is an exploded perspective view showing the connection structure between the pulling case and the pulling drive pipe FIG. 10, FIG. 10 is a sectional side view of the pulling gear case, FIG. 11 is a sectional front view of the threshing device, FIG. 12 is a sectional rear view of the threshing device, and FIG. 13 is an enlarged view of the main part of the threshing device showing a state in which the upper cover body is opened. FIG. 14 is an enlarged left side view of the waste cutting device, FIG. 15 is an enlarged right side view of the waste cutting device, and FIG. 16 is a sectional plan view of the waste cutting device.

(1). First, the overall structure of the combine will be described with reference mainly to FIGS. In the following description, the left side in the forward direction of the traveling machine body 1 is simply referred to as the left side, and the right side in the forward direction is also simply referred to as the right side.

  As shown in FIGS. 1 to 3, the combine according to this embodiment includes a traveling machine body 1 supported by a pair of left and right traveling crawlers 2 (traveling portions). At the front part of the traveling machine body 1, a 6-row mowing device 3 that takes in while harvesting cereals is mounted by a single-acting lifting hydraulic cylinder 4 so as to be movable up and down around the mowing pivot fulcrum shaft 4 a. ing. A threshing device 5 having a feed chain 6 and a grain tank 7 for storing grain after threshing are mounted on the traveling machine body 1 side by side. The threshing device 5 is arranged on the left side in the forward direction of the traveling machine body 1 (see FIG. 3). Moreover, the grain tank 7 is arrange | positioned at the right side toward the advancing direction of the traveling body 1. Underneath the grain tank 7 (upper surface side of the traveling machine body 1), a cradle cradle 8 is provided, and the grains inside the cereal tank 7 are fed from the basin outlet 9 on the lower surface side of the grain tank 7 8 is configured to be discharged into a bag (not shown) on the top. An operation unit 10 is provided on the right side of the reaping device 3 and on the front side of the grain tank 7.

  In the driving unit 10, a step 11 on which an operator gets on and a driver's seat 12 are arranged. Left and right side clutch levers 14 and 15 for steering are disposed on a handle column 13 in front of the driver seat 12. A travel speed change lever 17 and a work clutch lever 18 for operating the threshing clutch and the mowing clutch are arranged on the lever column 16 on the left side of the driver seat 12. An engine 20 as a power source is disposed in the traveling machine body 1 below the driver seat 12.

  As shown in FIGS. 1 and 2, left and right track frames 21 are arranged on the lower surface side of the traveling machine body 1. The track frame 21 holds a driving sprocket 22 for transmitting the power of the engine 20 as a power source to the traveling crawler 2, a tension roller 23 for maintaining the tension of the traveling crawler 2, and a grounding side of the traveling crawler 2 in a grounded state. A plurality of track rollers 24 are provided. The driving sprocket 22 supports the front side of the traveling crawler 2, the tension roller 23 supports the rear side of the traveling crawler 2, and the track roller 24 supports the grounding side of the traveling crawler 2.

  As shown in FIG. 1 to FIG. 3, below the cutting frame 51 connected to the cutting rotation fulcrum shaft 4a of the cutting device 3, a clipper type cutting blade device that cuts the stock of uncut grain culm in the field. 52 is provided. In front of the reaping frame 51, four grain culling pulling devices 53 are arranged to raise uncut corn straw in the field. Between the culm pulling device 53 and the front end (feed start end side) of the feed chain 6, a culm transporting device 54 that transports the chopped culm harvested by the cutting blade device 52 is arranged. In addition, in front of the lower part of the cereal habit raising device 53, a weeding body 55 for 4 ridges for weeding uncut cereal cereals in the field is projected. While driving the traveling crawler 2 with the engine 20 and moving within the field, the reaping device 3 is driven to continuously shave the uncut grain culm on the field.

  The reaping device 3 is configured to be rotatable up and down around a horizontally long reaping rotation fulcrum shaft 4a pivotally supported by a reaping stand 65 positioned in front of the threshing device 5. A longitudinal transmission pipe 66 extending diagonally forward and downward is provided in the middle of the cutting rotation fulcrum shaft 4a. A midway portion of the vertical transmission pipe 66 and a front end portion of the traveling machine body 1 are connected via a lifting hydraulic cylinder 4.

  As shown in FIGS. 1, 2, 5, and 6, a laterally long horizontal transmission pipe 67 is provided at the tip of the vertical transmission pipe 66. A horizontal rail frame 69 extending parallel to the horizontal transmission pipe 67 is attached to the horizontal transmission pipe 67 via a pair of left and right relay frames 68. In the horizontal beam frame 69, five cutting frames 51 protruding forward are arranged in parallel along the longitudinal direction of the horizontal beam frame 69 at appropriate intervals. A clipper-type cutting blade device 52 is provided below the cutting frame 51 group. A weeding body 55 projects from the tip of each cutting frame 52.

  Four pulling drive pipes 70 are erected on the horizontal transmission pipe 67 so as to extend obliquely upward in the forward direction in accordance with the number of cutting lines. The pulling drive pipes 70 are arranged at appropriate intervals along the longitudinal direction of the lateral transmission pipe 67. At the tip of each pulling drive pipe 70, a grain raising device 53 for causing an uncut wheat straw in the field is attached.

  The grain raising apparatus 53 includes an erecting case 72 with an erecting tine 71 that erects an uncut grained rice cake taken in via the weed body 55, a star wheel 73 and a scraping belt disposed at the lower rear of each erecting case 72 74. The star wheel 73 and the scraping belt 74 are for scraping the stock side of the uncut grain culm caused by the pulling tine 71 corresponding to these sets backward. The stocker side of the uncut cereal rice cake scraped by the star wheel 73 and the scraping belt 74 is cut by a clipper type cutting blade device 52.

  The grain feeder 54 includes a lower right conveyor chain (not shown) and an upper right conveyor tine 75 that conveys the right two chopped grains into the left rear and the left two chopped grains in the rear right. The lower left conveying chain (not shown) and the upper left conveying tine 76 joined together in the vicinity of the feed end position of the lower conveying chain and the upper right conveying tine 75, and the stock side of the merged four-line harvested grain culm are inherited and conveyed. And a vertical transfer chain 77.

  Side dividers 81 and 82 are provided on the left and right sides of the reaping device 3. The side dividers 81, 82 move the uncut cereals in the left-right direction so that the traveling machine body 1 that moves forward does not entrain the uncut cereals on the left and right sides or step on the traveling crawler 2 during the cutting operation. This is for pushing outward (in a direction away from the traveling machine body 1 to the left and right).

  The left side divider 81 extends in the front-rear direction from the reaping device 3 to the rear part of the traveling machine body 1 and is a pair of front and rear weeds connected to bendable via a pivoting member 86 having a substantially U-shaped cross section.杆 83 and 84, and an intermediate link 杆 85 that connects the pivot member 44 and the left side of the traveling machine body 1. Both the front and rear weed bushes 83 and 84 have a working posture (see the solid line state in FIG. 3) projecting outward in the left-right direction by horizontally rotating the intermediate link rod 85 around the base end, and the cutting device 3 and The posture can be changed to a storage posture (not shown) close to the traveling machine body 1.

  The front end portion of the front weed rod 83 is pivotally attached to the left end cutting frame 51 closest to the left side portion of the cutting device 3 so as to be horizontally rotatable by a vertical pivot pin. The rear end portion of the front weed rod 83 is pivotally attached to a pivoting member 86 having a substantially U-shaped cross section by a longitudinal pivot pin. Like the rear end portion of the front weed rod 83, the front end portion of the rear weed rod 84 is pivotally attached to the pivoting member 86 by a vertically-oriented pivot pin 48. A ring member 87 fixed to the rear end portion of the rear split grass cage 84 is fitted (freely fitted) on a longitudinal guide bar 88 fixed to the left side portion of the traveling machine body 1. For this reason, the rear end portion of the rear weed rod 84 is supported on the left side portion of the traveling machine body 1 so as to be slidable back and forth.

  The distal end portion of the intermediate link rod 85 is fixed to the pivot attachment member 86. The base end portion of the intermediate link rod 85 is pivotally attached to the left side portion of the traveling machine body 1 by a vertical pivot pin so as to be horizontally rotatable. Although not shown in detail, the base end portion of the intermediate link rod 85 is provided with a locking means for selectively holding the intermediate link rod 85 itself and the left side divider 81 in the working posture and the storage posture. Yes.

  When the intermediate link rod 85 pivots forward around the pivot pin on the proximal end side, the position of the pivot attachment member 86 moves away from the traveling vehicle body 1 in a plan view, and the front weed rod 83 moves around the pivot pin on the front end side. The rear branch weed 84 is moved around the pivot pin on the pivoting member 86 side while horizontally moving the ring member 87 on the rear end toward the front side of the traveling machine body 1. It rotates horizontally. As a result, the working posture is such that the front and rear weed ridges 83 and 84 project outward in the left-right direction in a state of being bent in a generally letter-like shape in plan view.

  On the contrary, when the intermediate link rod 85 rotates backward around the pivot pin on the proximal end side, the position of the pivot attachment member 86 approaches the traveling machine body 1 in a plan view, and the front weed rod 83 moves around the pivot pin on the front end side. The pivot pin 84 on the pivot attachment member 86 side is rotated horizontally in the direction of approaching the traveling machine body 1 and the rear branch blade 84 slides the ring member 87 on the rear end side toward the rear side of the traveling machine body 1. Rotate horizontally around. As a result, the front and rear split weeds 83 and 84 are returned to the storage posture close to the mowing device 3 and the traveling machine body 1 in a state in which they are arranged in a substantially straight line in a plan view. In this case, the front weed rod 83 and the intermediate link rod 85 are positioned side by side (parallel).

  On the other hand, the right side divider 82 is in the form of a long metal bar extending toward the front of the right traveling crawler 2, and the boss portion 89 fixed to the front end is connected to the right end cutting frame 51 closest to the right side of the cutting device 3. By being fitted on the horizontal shaft portion 90a of the upright L-shaped pin 90, it is configured to be rotatable up and down around the horizontal shaft portion 90a.

  A positioning plate 91 having an arc-shaped elongated hole (not shown) is erected in the middle of the right-end cutting frame 51, while the positioning plate 91 is disposed on the rear side of the right side divider 82. A protruding rotation support arm 92 is provided. The positioning plate 91 and the rotation support arm 92 are connected by a lock means 93 for selectively holding the rotation support arm 92 itself and the right side divider 82 in the working posture and the storage posture.

  In this case, when the right side divider 82 is turned downward around the horizontal shaft portion 90a, the right side divider 82 is in a working posture projecting outward in the left-right direction (see the solid line state in FIG. 3). Return to the stored position.

  As shown in FIG. 1, FIG. 2, and FIG. 4, the threshing device 5 includes a shaking cylinder 26 for threshing threshing and a rocking mechanism as a rocking sorting mechanism that sorts the threshing material falling below the handling cylinder 26. A dynamic sorting board 27, a red pepper fan 28 for supplying sorting wind to the swing sorting board 27, a processing drum 29 for reprocessing the threshing discharge taken from the rear part of the handling cylinder 26, and a rear part of the swing sorting board 27. And a dust exhaust fan 30 for discharging the dust exhaust outside the apparatus. A handling shaft 26a that rotates the handling cylinder 26 extends along the conveying direction of the cereal by the feed chain 6 (the traveling direction of the traveling machine body 1). The stocker side of the cereals conveyed from the reaping device 3 by the cereal conveying device 54 is inherited by the feed chain 6 and is nipped and conveyed. Then, the tip side of the cereal basket is carried into the handling chamber 26 b of the threshing device 5 and threshed by the handling cylinder 26.

  As shown in FIG. 4, an exhaust chain 34 is disposed on the rear end side of the feed chain 6. The waste (the grain from which the grain has been threshed) inherited from the rear end side of the feed chain 6 to the waste chain 34 is discharged to the rear of the traveling machine body 1 in the long state, or the rear side of the threshing device 5 After being cut to a suitable length by a waste cutter 35 as a waste cutting device provided in the vehicle, the waste cutter 35 is discharged to the lower rear of the traveling machine body 1.

  As shown in FIG. 4, on the lower side of the rocking sorter 27, a first conveyor 31 and a first basket 31a for taking out the grain (first thing) sorted by the rocking sorter 27, branches A second conveyor 32 and a second basket 32a for taking out second items such as cereal grains are provided. The two conveyors 31 and 32 of the present embodiment are arranged in the order of the first conveyor 31 and the second conveyor 32 from the front in the traveling direction of the traveling machine body 1 to the upper surface side of the traveling machine body 1 above the rear part of the traveling crawler 2 in a side view. It is installed.

  As shown in FIGS. 4, 11, and 12, the rocking sorter 27 is configured so that the cereal that has leaked from the receiving net 26 c stretched below the handling cylinder 26 is removed from the feed pan of the rocking sorter 27. 271 and chaff sheave 272 are configured to perform peristaltic sorting (specific gravity sorting). The grain (first thing) dropped from the grain sieve 273 of the swing sorter 27 is removed by the sorting wind from the Kara fan 28 and dropped onto the conveyor 31 first. A first cereal cylinder 33 extending in the vertical direction is connected to a terminal portion of the first conveyor 31 that protrudes outward from one side wall (in the embodiment, the right side wall) near the grain tank 7 in the threshing device 5. ing. The grain taken out from the first conveyor 31 is carried into the grain tank 7 by the first cereal conveyor (not shown) provided in the first cereal cylinder 33 and collected in the grain tank 7.

  As shown in FIG. 4, a stroller 274 is disposed on the downstream side (rear side) of the chaff sheave 272. Oscillating sorter 27 is a reduced reprocessed product for re-sorting such as grain with branches and branches from chaff sheave 272 or Strollack 274 by peristaltic sorting (specific gravity sorting). ) Fall on the second conveyor 32 and the second basket 32a. The second product taken out by the second conveyor 32 is returned to the upper surface side of the feed pan 271 via the second reduction milling cylinder 61 and re-sorted.

  Note that the relatively light waste on the upper surface side of the chaff sheave 272 and the stroller 274 is sucked into the suction port 30a on the front side of the dust exhaust fan 30 and discharged from the exhaust port 30b on the rear side of the dust exhaust fan 30 to the outside of the machine. Will be. Further, the relatively heavy sawdust that has moved from the downstream side (rear side) of the chaff sheave 272 to the upper surface side of the stroller 274 is discharged from the third port 36 on the rear end side of the swing sorter 27 to the outside. It will be.

  As shown in FIG. 4, the rocking sorter 27 is arranged on the threshing machine housing 60 in which the threshing device 5 is formed via the rocking drive shaft 56, the front guide rail 57, and the rear guide rail 58. It is arranged so as to be movable diagonally downward or diagonally upward. The swing sorter 27 is actuated by the power from the engine 20 via the swing drive shaft 56, and the swing sorter 27 reciprocates diagonally forward or diagonally backward. As a result, the degranulated material leaked from the receiving net 26c stretched below the handling cylinder 26 is configured to be subjected to rocking sorting (specific gravity sorting) by the feed pan 271 and the chaff sheave 272.

  As shown in FIG. 4, the main fan case 28 a of the Chinese fan 28 is supplied with the selection air of the Chinese fan 28 toward the lower surface side of the grain sheave 273 and above the first conveyor 31 and the first fan 31 a. A sorting air passage 41 and a pre-air passage 42 for supplying the sorting air of the tang fan 28 from the lower surface side of the feed pan 271 toward the lower surface side of the chaff sheave 272 are formed. The above-described main sorting air passage 41 is formed so that the sorting air from the Chinese fan 28 moves from the lower front side of the grain sieve 273 toward the upper rear side of the grain sheave 273.

  Further, the above-described main sorting air passage 41 is formed so that the sorting air from the Kara fan 28 moves from the front to the rear above the first conveyor 31 and the first basket 31a. That is, the grain and dust that fall from the grain sieve 273 to the first conveyor 31 and the first basket 31 a are selected by the sorting wind from the tang fan 28. As a result, it is configured such that only the grain after the dust is removed falls to the first conveyor 31 and the first basket 31a and is taken out to the grain tank 7 by the first conveyor 31.

  The pre-air passage 42 described above is formed such that the sorting air from the tang fan 28 moves from the front lower side to the rear upper side of the chaff sheave 272. That is, when the degranulated material that has fallen from the handling cylinder 26 to the upper surface of the feed pan 271 through the receiving net 26 c falls from the rear end side of the feed pan 271 to the front end side of the chaff sheave 272, Selected by wind. As a result, among the degranulated material that has moved from the feed pan 271 to the upper surface of the chaff sheave 272, the lower swarf (lightweight material) of the degranulated material close to the upper surface of the chaff sheave 272 is moved to the upper layer side by the sorting wind, The amount of sawdust falling from 272 is reduced. In addition, due to the specific gravity sorting action of the chaff sheave 272 and the wind selection of the sorting wind from the tang fan 28, the grain on the upper layer side (heavy article) of the shed product is moved to the lower layer side and leaked early from the chaff sheave 272. Will do. The specific gravity sorting action of the chaff sheave 272 is facilitated by the sorting wind from the tang fan 28, and the sorting processing capability (sorting accuracy) is improved.

  Note that the sorting air from the tang fan 28 supplied from the main sorting air passage 41 and the pre-air passage 42 is sucked into the dust exhaust suction port 30a of the dust exhaust fan 30 and discharged from the exhaust port 30b. Since it moves from the third port 36 to the rear of the threshing machine casing 60, the sawdust and dust in the threshing material from the handling cylinder 26 are discharged from the rear part of the threshing machine casing 60 toward the field.

  As shown in FIG. 4, the processing cylinder 29 described above is disposed in a processing cylinder case 45 via a processing cylinder shaft 29 a that rotates the processing cylinder 29. The processing cylinder shaft 29a extends in parallel with the above-described handling cylinder shaft 26a (in other words, the traveling direction of the traveling machine body 1). The front end side of the processing cylinder shaft 29a is extended to the front side of the threshing machine housing 60, and the power of the engine 20 is transmitted to the front end side of the processing cylinder shaft 26a and the front end side of the processing cylinder shaft 29a via the transmission belt 180. Thus, the handling cylinder 26 and the processing cylinder 29 are always rotated in conjunction with each other.

  A processing cylinder case 45 is arranged on the right side of the threshing machine housing 60. The rear end side of the processing chamber 26b is communicated with the front end side of the processing cylinder case 45 through a dust removal dust outlet 47 formed on the right side of the rear end side of the processing chamber 26b. The degranulated dust (mixture of grain and sawdust) generated in the handling chamber 26b due to the degranulating action of the handling cylinder 26 is caused by the discharge action of the tooth handling on the rear end side of the handling cylinder 26, thereby causing the rear end of the handling chamber 26b. From the side, it is configured to move into the processing cylinder case 45 through the dedusting dust outlet 47.

  The degranulated dust that has moved from the rear end side of the handling chamber 26 b to the processing cylinder chamber 29 b is configured to be processed (re-degranulated) by the processing cylinder 29. Grains in the shed trash are dropped from the inside of the processing cylinder case 45 to the upper surface side of the lower chaff sheave 272 and taken out by the first conveyor 31 or the second conveyor 32. Dust such as sawdust in the shed dust is dropped from the dust outlet on the rear end side of the processing cylinder case 45 to the upper surface side of the lower Strollac 274 and then discharged from the third port 36 to the outside of the machine. The

  As shown in FIG. 4, the second reduction milling cylinder 61 connected to the feed end side of the second conveyor 32 and the second reduction front connected to the feed end side (upper end side) of the second reduction milling cylinder 61. It has the 2nd reduction | restoration conveyance cylinder 62 as a transfer cylinder. A second reduced whipping conveyor 63 is provided in the second reduced whipping cylinder 61. A second reduction conveyance conveyor 64 is provided in the second reduction conveyance cylinder 62. The feed of the second reduced cereal conveyor 63 extending in the vertical direction is fed to the feed terminal end projecting outward from one side wall (in the embodiment, the right side wall) of the second conveyor 32 near the grain tank 7. The starting end side (lower end side) is connected in communication. The feed starting end side (rear end side) of the second reduction conveying conveyor 64 extending in the front-rear direction is connected to the feed end portion (upper end side) of the second reduction cereal conveyor 63.

  As shown in FIG. 4, the rear end side of the second reduction conveying cylinder 62 is connected to the upper end side of the second reduction milling cylinder 61. A second reduction conveying cylinder 62 is horizontally arranged along the outer surface of the upper side wall of one side wall (right side wall) of the threshing machine housing 60. A second reduction milling cylinder 61 is extended upward from the second conveyor 32 behind the first milling cylinder 33, and the middle of the second reduction conveying cylinder 62 is crossed in the middle of the first milling cylinder 33 in a side view. It is configured to make it. In other words, the second reduction conveying cylinder 62 is arranged offset in the left and right width of the swing sorting board 27 with respect to the second reduction milling cylinder 61, and second on the feed end side of the second reduction milling cylinder 61. The feeding start end side of the reduction conveyance cylinder 62 is connected.

  As shown in FIG. 4, a discharge case as a second discharger for returning the second item to the swing sorter 27 is provided at the front end side of the second reduction conveyance cylinder 62 extending forward from the first reduction cylinder 33. 80 is arranged. A discharge case 80 is disposed on the upper right side of the upper surface of the feed pan 271, and the discharge case 80 is opened from the right side of the upper surface of the feed pan 271 toward the left side. That is, the discharge case 80 is opened toward the lower surface side of the receiving net 26c arranged on the lower rotation side of the handling cylinder 26 (to the right of the bottom of the handling chamber 26b). The second item in the discharge case 80 is discharged from the discharge case 80 toward the upper surface side of the feed pan 271.

  In addition, while the threshing material degranulated on the lower side of the handling cylinder 26 that rotates clockwise when the threshing device 5 is viewed from the front, the threshing material is scattered from the left side of the upper surface of the feed pan 271 toward the right side. The second object discharged from the discharge case 80 is configured to scatter from the right side of the upper surface of the feed pan 271 toward the left side. Therefore, the scattered direction of the shattered material from the barrel 26 (scattered from the feed chain 6 side toward the grain tank 7 side) and the scattered direction of the second product from the discharge port 80a (from the grain tank 7 side to the feed chain). Scatters toward the 6 side) in the vicinity of the center of the left and right width of the feed pan 271. That is, the degranulated product and the second product collide near the center of the left and right width of the feed pan 271 to prevent the degranulated product from accumulating near the right side of the feed pan 271 (on the lower rotation side of the handling cylinder 26). it can. As a result, the crushed material and the second material moving from the feed pan 271 to the chaff sheave 272 are diffused in the left-right width direction of the chaff sheave 272, and the sorting workability in the chaff sheave 272 can be improved.

  With the above configuration, when the reaped cereals in the field are reaped by the reaping device 3 and the reaped cereals supplied from the reaping device 3 are threshed by the threshing device 5, the cereal fallen from the threshing device 5 is shaken. Sorted by the motion sorter 27. The grain as the first thing sorted by the swing sorter 27 is collected in the grain tank 7 by the first conveyor 31. In addition, when the mixture of the grain and sawdust as the second product selected by the swing sorter 27 falls on the second basket 32a, the second product is transferred from the second conveyor 32 to the second reduced cereal conveyor. 63, the second reduction cereal conveyor 63 is transferred to the second reduction conveyor 64, and is transferred from the second reduction conveyor 64 into the discharge case 80.

  The second product taken into the discharge case 80 from the front end side of the second reduction conveyance cylinder 62 is discharged from the discharge case 80 to the upper surface of the feed pan 271 after processing such as stab particle degreasing and sawdust separation. Then, it is sorted again by the swing sorter 27. Therefore, the grain in the second item is carried into the grain tank 7 from the first conveyor 31. Further, the sawdust in the second item is discharged out of the machine from the dust exhaust fan 30 or the third port 36 through the upper surface of the chaff sheave 272.

  Moreover, although the 2nd conveyor 32, the 2nd reduction | restoration cereal conveyor 63, and the 2nd reduction | restoration conveyance conveyor 64 always rotate in response, each rotation speed differs. The second reduction whipping conveyor 63 rotates at a higher speed than the second conveyor 32, and the second reduction conveying conveyor 64 rotates at a higher speed than the second reduction mashing conveyor 63. The conveyance amount per unit time of the second reduced cereal conveyor 63 is made larger than the conveyance amount per unit time of the second conveyor 32, and the second reduction is carried out than the conveyance amount per unit time of the second reduced cereal conveyor 63. The conveyance amount per unit time of the conveyance conveyor 64 is increased, and the second thing is prevented from being clogged during the conveyance of the second reduction whipping conveyor 63 or the second reduction conveyance conveyor 64.

(2). Next, the attachment / detachment structure of the cutting blade device 52 will be described with reference to FIGS.

  The clipper-type cutting blade device 52 is an example of a driving member, and is disposed below the cutting frame 51 group in a posture extending in parallel with the horizontal rail frame 69. The cutting blade device 52 includes a plurality of upper cutting blades 101 riveted to the left and right horizontally long upper knife bars 103, and a plurality of lower cutting blades 102 riveted to the left and right horizontally long lower knife bars 104 at a fixed pitch. It has.

  On the lower surface of the bracket 105 that connects the horizontal rail frame 69 and the base end portion of each cutting frame 51, a guide rail 106 is fixed as a support member formed in a laterally long and forward U shape. A laterally long cutting blade receiving plate 107 is detachably fastened to the guide rail 106 with a bolt 108 from below in a state where the cutting blade receiving plate 107 is fitted into the guide groove 106a having a forward opening by sliding from the left and right. . The upper cutting blade 101 and the lower cutting blade 102 are stacked vertically symmetrically, and the upper knife bar 103 and the lower knife bar 104 are sandwiched between the upper surface of the cutting blade receiving plate 107 and the knife presser 109 via the adjustment collar 110. Has been.

  In the cutting blade device 52, the upper cutting blade 101 fixed to the upper knife bar 103 is configured to be capable of reciprocating left and right. In the present embodiment, a cutting blade drive case 111 is provided near the right end portion of the lateral transmission pipe 67, and a cutting blade crankshaft (not shown) as a crank fulcrum projecting obliquely forward and upward from the cutting blade drive case 111. A cutting blade crank 113 is attached via a flywheel 112. A base end portion of a cutting blade crank rod 114 is attached to the cutting blade crank 113.

  On the other hand, a cutting blade arm base 116 with a cutting blade arm 117 is detachably fastened to an arm receiving plate 115 fixed to the crosspiece frame 69 by a bolt 118 from above. The intermediate portion of the cutting blade arm 117 is pivotally supported by the cutting blade arm base 116 via a fulcrum shaft 119 which is a cutting blade arm fulcrum so as to be swingable.

  The distal end portion of the first swing arm 117a in the cutting blade arm 117 is connected to the distal end portion of the cutting blade crank rod 114 via a rod shaft. A bearing 120 pivotally supported at the tip of the second swing arm 117b of the cutting blade arm 117 is fitted with a knife head 121 as a power transmission unit integrally riveted to the upper knife bar 103 together with the upper cutting blade 101. The groove is detachably engaged.

  In this embodiment, the upper cutting blade 101 is reciprocated in the left-right direction together with the upper knife bar 103 by swinging and turning about the fulcrum shaft 119 of the cutting blade arm 117 as the cutting blade crank 113 rotates. Harvesting cereals.

  Further, as is apparent from the above configuration, in this embodiment, the upper and lower cutting blades 101 and 102, the upper and lower knife bars 103 and 104, the knife presser 109, the adjustment collar 110, the cutting blade receiving plate 107, and the knife head 121 as a power transmission unit. Are unitized as one cutting blade device 52 (having a cassette structure).

  As shown in FIGS. 5 to 7, a safety cover 125 having a U-shaped cross section is disposed in a front portion of the cutting blade device 52 in the right end cutting frame 51 closest to the right side portion of the cutting device 3. In the present embodiment, the support bracket 126 fixed to the base end portion of the safety cover 125 is pivotally attached to the lower surface of the right-end cutting frame 51 so as to be horizontally rotatable by a vertically-supporting pivot shaft 127, thereby 125 is a mounting posture (see the solid line state in FIGS. 5 and 7 and the two-dot chain line state in FIG. 6) that surrounds the cutting edge side of the upper and lower cutting blades 101 and 102, and the retreating away from the cutting edge side portion of the upper and lower cutting blades 101 and 102. The posture can be changed to the posture (see the solid line state in FIG. 6).

  The safety cover 125 and the right side divider 82 are interlocked and connected by a push-pull wire 128 as an operation force transmission means capable of transmitting an operation force in both directions of pushing and pulling. The push-pull wire 128 includes an inner wire 129 that connects the safety cover 125 and the right side divider 82, and a flexible outer tube 130 that is slidably fitted on the inner wire 129.

  One end of the inner wire 129 is pivotally attached to the upper surface of the safety cover 125 by a pivot pin 131. The other end of the inner wire 129 is pivotally attached to a bracket plate 133 fixed to the middle part of the right side divider 82 via a pivot pin 132. One end portion of the outer pipe 130 is supported by a first outer pipe receiving portion 135 fixed to the upper surface of the right end cutting frame 51, while the other end portion of the outer pipe 130 is a blindfolding protective side plate in the right end raising case 72. It is supported by a second outer pipe receiving portion 136 fixed to the lower surface of 72a.

  The safety cover 125 is configured to change the rotation posture in conjunction with the vertical rotation (posture change movement) of the right side divider 82. In this case, when the operator turns the right side divider 82 downward around the horizontal shaft portion 90 a of the L-shaped pin 90 to the working posture, the safety cover 125 is lifted by the pulling force of the push-pull wire 128. , 102 is horizontally rotated in a direction away from the cutting edge side to be in a retracted posture. When the right side divider 82 is rotated upward around the horizontal shaft portion 90a of the L-shaped pin 90 to the retracted position, the safety cover 125 is moved to the cutting edge side of the upper and lower cutting blades 101 and 102 by the pushing force of the push-pull wire 128. It rotates horizontally in a direction opposite to the mounting posture.

  In the above configuration, when the cutting blade device 52 is removed, first, the right side divider 82 is turned upward to be in the storage position. Then, in conjunction with the upward rotation of the right side divider 82, the safety cover 125 is horizontally rotated by the pushing force of the push-pull wire 128 to change to the mounted posture, and the cutting edges of the upper and lower cutting blades 101, 102 are viewed from the side. It will be in a state that surrounds the side.

  Next, by loosening the bolt 118 of the cutting blade arm base 116 and removing the cutting blade arm base 116 from the arm receiving plate 115, the bearing 120 of the second swing arm 117b in the cutting blade arm 117 and the cutting blade device 52 side. The engagement with the knife head 121 is released and the bolt 108 of the guide rail 106 is loosened to release the connection between the guide rail 106 and the cutting blade receiving plate 107.

  The cutting blade device 52 is combined with one unit (upper and lower cutting blades 101 and 102, upper and lower knife bars 103 and 104, a knife press 109, an adjustment collar 110, a cutting blade receiving plate 107, and a knife head 121 as a power transmission unit), The guide rail 106 and the safety cover 125 may be pulled out while sliding along the longitudinal direction.

  Further, when attaching the cutting blade device 52, the right side divider 82 is turned upward to the storage posture, so that the safety cover 125 is put in the mounting posture, and then the cutting blade device 52 is set unit by unit, guide rail 106 and The safety cover 125 is inserted while being slid along the longitudinal direction.

  Then, after the guide rail 106 and the cutting blade receiving plate 107 are fastened with the bolt 108, the cutting blade arm base 116 is fastened with the bolt 118 to the arm receiving plate 115, and the bearing of the second swing arm 117b in the cutting blade arm 117 is secured. 120 and the knife head 121 on the cutting blade device 52 side may be engaged with each other.

  Therefore, according to the configuration of the present embodiment, the cutting blade device 52 as the driving member can be easily attached to or removed from the guide rail 106 as the support member together with the knife head 121 in units. It is easy to do.

  Moreover, since the cutting blade device 52, which is a heavy object, is taken in and out while being slid along the longitudinal direction of the guide rail 106 and the safety cover 125, such a loading and unloading operation can be performed smoothly, and the burden on the operator can be reduced.

  In addition, the safety cover 125 surrounds the cutting edge sides of the upper and lower cutting blades 101 and 102 in a side view during attachment / detachment work, so that the risk of injury due to the operator touching the cutting edge sides of the upper and lower cutting blades 101 and 102 is reduced. It is possible and safe.

  Since the right side divider 82 is rotated downward to the working posture during the cutting operation, the safety cover 125 at this time is interlocked with the downward rotation of the right side divider 82 to move the upper and lower cutting blades 101 and 102. Retreat posture away from the cutting edge side. Therefore, the presence of the safety cover 125 is less likely to obstruct cutting.

  Note that the safety cover 125 may be provided on the left end trimming frame 51 side closest to the left side of the harvesting device 3. In this case, in conjunction with the posture change movement of the left side divider 81, if the posture can be changed between the mounting posture surrounding the cutting edge side of the cutting blade device 52 and the retracting posture away from the cutting edge side, the above-described embodiment and Similar effects can be obtained. Of course, it is also possible to provide the safety cover 125 on both the left end and right end cutting frames 51.

(3). Next, the attaching / detaching structure of the corn straw pulling device 53 will be described with reference to FIGS. 1 to 3 and 8 to 10.

  The pulling case 72 for four lines in the present embodiment is also an example of a driving member, and at the front portion of the reaping device 3, the posture is inclined obliquely upward and rearward at appropriate intervals along the left-right direction of the traveling machine body 1. Is arranged. Each pulling case 72 is provided with a pulling tine 71 that turns an outer peripheral side portion from the lower portion on the working side to the upper portion on one side in an outward projecting posture to stand the uncut grain culm.

  A rear upper portion of the pulling case 72 is detachably fastened to an upper end portion of each pulling drive pipe 70 erected on the horizontal transmission pipe 67 via a pulling gear case 141 as a support member. The lower part of the rear surface of each pulling case 72 is detachably bolted to an inverted L-shaped branch frame 142 erected on the cutting frame 51 positioned below the pulling case 72.

  The arrangement relationship between the left end raising case 72 and the center left raising case 72 is symmetrical with respect to the direction in which the raising tine 71 protrudes, and the arrangement relationship between the right end raising case 72 and the center right raising case 72 is the protrusion of the raising tine 71. The direction to do is symmetrical. That is, the opposite raising cases 72 are configured to cause two uncut cereals as a pair.

  Each pulling case 72 is made of a synthetic resin plate front cover 143 formed integrally with a surrounding wall 144 around a non-working area of the pulling tine 71, and a metal plate mounted on the back side of the front cover 143. The back plate 145 forms a hollow shape that is long in the vertical direction. A tine slot 146 (only a part of which is shown in FIG. 9) is opened in the working area of the enclosure wall 144 for allowing the pulling tine 71 to protrude outward. Here, the working side (working area) of the pulling case 72 refers to a region of the outer peripheral side portion of the pulling case 72 where the pulling tine 71 rotates in an outward projecting state.

  An endless chain 150 as an endless belt is wound around the pulling drive sprocket 147 and the tension sprocket 148 provided on the upper side in the pulling case 72 and the driven roller 149 provided on the lower side. The pulling drive shaft 151 as a power transmission unit fixed to the pulling drive sprocket 147 is pivotally supported by the back plate 145 so that its midway portion is rotatable. The leading end of the pulling drive shaft 151 protrudes outward from the back plate 145. A plurality of pulling tines 71 are attached to the endless chain 150 so as to swing up and down at appropriate intervals. The plurality of pulling tines 71 attached to the endless chain 150 are rotated clockwise in a front view by a pulling drive sprocket 147 that is rotated by the power transmitted from the pulling transmission shaft 152 to the pulling drive shaft 151 in the pulling drive pipe 70. Will go around.

  A protruding guide member 153 capable of contacting the rotation base end portion of the pulling tine 71 is provided in the pulling case 72 above the driven roller 149. The pivoting base end of the pulling tine 71 that has reached the working area of the pulling case 72 abuts against the protruding guide member 153 so that the pulling tine 71 protrudes outward from the tine groove hole 146 of the enclosure wall 144. Has been. When the rotation base end portion of the pulling tine 71 comes into contact with the outer peripheral edge portion of the driven roller 149, the pulling tine 71 has a posture protruding radially outward as viewed from the rotation center of the driven roller 149.

  A tine guide 154 for holding the pulling tine 71 in an outward projecting state is provided at the working side in the pulling case 72 so as to extend along the longitudinal direction of the endless chain 150. Accordingly, in the working area of the pulling case 72, the pulling tines 71 rotate in the outward projecting state along the tine slots 146.

  Further, at the non-acting portion of the pulling case 72, the leading tine 71 is stored in a tilted position in the pulling case 72 by bringing the tip of the pulling tine 71 into contact with the inner wall of the surrounding wall 144. It is configured. The tension sprocket 148 is provided on the back plate 145 so that the endless chain 150 can move in a direction in which the endless chain 150 is tensioned or relaxed.

  In the present embodiment, the pulling drive sprocket 147 with the pulling drive shaft 151, the tension sprocket 148, the driven roller 149, the endless chain 150 with the pulling tine 71, the front lid 143, the back plate 145, etc. are used as one pulling case 72. Unitized (cassette structure).

  As shown in FIGS. 9 and 10, the pulling gear case 141 is formed in a cylindrical shape having a substantially square shape in side view by casting. A flange body 155 is fixed to one end side of the pulling drive pipe 70 by welding or the like. A first flat mating surface 156a that can be joined to the flange-side mating surface 155a of the flange body 155 is formed on one end side flange portion 156 of the left and right pulling gear cases 141. The first flat mating surface 156a and the flange side mating surface 155a of the pulling gear case 141 are detachably fastened by a plurality of fasteners 157. The screw of the fastener 157 is screwed to the flange portion 156 on the one end side.

  A second planar mating surface 158 a that can be joined to the case mating surface 159 of the pulling case 72 is formed on the flange portion 158 on the other end side of the pulling gear case 141. The second flat mating surface 158a and the case mating surface 159 of the pulling gear case 141 are fastened by a plurality of fasteners 160 in a detachable manner. The screw of the fastener 160 is screwed to the fastened portion 161 on the inner surface side of the back plate 145.

  The pulling gear case 141 has a built-in gear mechanism 164 having a pipe side bevel gear 162 fitted to the pulling transmission shaft 152 in the pulling drive pipe 70 and a pulling side bevel gear 163 fitted to the pulling drive shaft 151 of the pulling case 72. Has been. The pipe side bevel gear 162 and the pulling side bevel gear 163 are always meshed in the pulling gear case 141.

  In the present embodiment, the spline hole 165 formed in the pipe-side bevel gear 162 is inserted so that the spline portion formed at the tip of the pulling transmission shaft 152 can slide and rotate integrally (spline). Mated). The spline hole 166 formed in the pulling side bevel gear 163 is inserted so that the spline part formed at the tip of the pulling drive shaft 151 can slide and rotate integrally. Accordingly, the power transmitted to the pulling transmission shaft 152 causes the pulling drive sprocket 147 to be rotationally driven via the gear mechanism 164 and the pulling drive shaft 151.

  A bearing bearing 168 fitted on the boss portion 167 of the pipe-side bevel gear 162 is fitted. The bearing bearing 168 is detachably locked to the boss portion 167 by a snap ring type retaining ring. The bearing 168 is detachably locked to the bearing receiving portion 169 in the pulling gear case 141 with a snap ring type retaining ring.

  On the other hand, a bearing bearing 171 is fitted on the boss portion 170 of the pulling side bevel gear 163. The bearing bearing 171 is detachably locked to the boss portion 170 by a snap ring type retaining ring. The bearing 171 is detachably locked to the bearing receiving portion 172 in the pulling gear case 141 with a snap ring type retaining ring.

  In the above configuration, when attaching the pulling case 72 to the reaping device 3, the pulling drive shaft 151 on the pulling case 72 side is inserted into the spline hole 166 of the pulling side bevel gear 163 in the pulling gear case 141, and then the upper part of the back surface of the pulling case 72 And the pulling gear case 141 may be fastened by the fastener 160, and the lower portion of the back surface of the pulling case 72 and the branch frame 142 may be fastened.

  Conversely, when removing the pulling case 72, the fastener 160 that fastens the upper surface of the pulling case 72 and the pulling gear case 141 is loosened, and the fastener that fastens the lower surface of the pulling case 72 and the branch frame 142 is loosened. Then, after the connection between the pulling case 72 and the pulling gear case 141 and the branch frame 142 is released, the pulling case 72 is pulled forward together with the unit, and the pulling drive shaft 151 on the pulling case 72 side is pulled to the pulling side bevel gear in the pulling gear case 141. What is necessary is just to pull out from the spline hole 166 of 163.

  That is, according to the configuration of the present embodiment, the pulling case 72 as the driving member can be easily attached to or detached from the pulling gear case 141 as the support member together with the pulling drive shaft 151 in units. Each time, there is no need to align the back plate 145 of the pulling case 72 and the pulling gear case 141, or to readjust the tension of the endless chain 150 of the pulling case 72, and the work of attaching and removing the pulling case 72 is performed. Can be significantly reduced. Therefore, also in this case, maintenance / replacement work is much easier. In addition, since it can be easily mounted in a state where power can be transmitted without impairing the ease of attachment and detachment between the unitized pulling case and the pulling gear case, there is also an advantage that it can exhibit a high effect when dealing with clogging, for example. .

(4). Next, the attachment / detachment structure of the handling cylinder 26 will be described with reference to FIGS. 11 to 13.

  Above the rocking sorter 27 in the threshing device 5, there is provided a handling chamber 26 b that is partitioned by a front partition wall 181 and a rear partition wall 182. The handling cylinder 26 of this embodiment is also an example of a drive member, and is located between the front and rear partition walls 181 and 182 as support members. The front and rear bearing portions 183 and 184 of the handle cylinder shaft 26a are rotatably supported by the partition walls 181 and 182. Note that the handling cylinder 26 of the present embodiment is made of synthetic resin.

  Below the front partition wall 181 is a supply port 185 into which the tip side of the harvested cereal rice cake held and conveyed by the feed chain 6 is carried. Below the rear partition wall 182 is a discharge port 186 from which the tip side of the harvested cereal rice cake (removal) sandwiched and conveyed by the feed chain 6 is carried out. In this case, the cutting tip side of the harvested cereal enters the handling chamber 26 b from the supply port 185 located below the front partition wall 181, passes between the handling cylinder 26 and the receiving net 26 c, and then reaches the rear partition wall 182. Is sent out from the discharge port 186 located below the discharge chain 34.

  A rotation pulley 187 as a power transmission unit is fixed to a portion of the handling cylinder shaft 26a that protrudes forward from the front partition wall 181. A transmission belt 180 that transmits power from the engine 20 to the rotation pulley 187 is fixed to the rotation pulley 187. It is wrapped around. The handling shaft 26a also corresponds to a power transmission unit.

  A large number of synthetic resin teeth 188 projecting outward in the radial direction are formed on the outer circumferential surface of the barrel 26 in the axial direction (front-rear direction) of the barrel 26a at intervals of jumping along the circumferential direction. They are arranged in a row. In addition, if a thin metal piece is wound around the synthetic resin tooth 188, it is effective in preventing wear.

  As is clear from the above configuration, in this embodiment, the handling cylinder shaft 26a, the rotating pulley 187, and the handling teeth 188 are unitized with the handling cylinder 26 (a cassette structure).

  On the front and rear partition walls 181 and 182, guide grooves 189 and 190 opened upward are formed symmetrically. The front and rear bearing portions 183 and 184 of the corresponding handling cylinder shaft 26a are inserted into the guide grooves 189 and 190 from above. Auxiliary plates 191 and 192 for closing the guide grooves 189 and 190 are detachably bolted to the front surface of the front partition wall 181 and the rear surface of the rear partition wall 182. Each auxiliary plate 191, 192 is formed with notched grooves 193, 194 that open outward (downward). With the bottom portions of the guide grooves 189 and 190 in the front and rear partition walls 181 and 182 and the cutout grooves 193 and 194 of the auxiliary plates 191 and 192, the bearing portions 183 and 184 of the corresponding barrel shaft 26a can rotate. It is pinched so that it cannot be displaced back and forth.

  The upper surface and the side surface on the feed chain 6 side of the handling chamber 26 b are covered with an upper cover body 195. The upper cover body 195 is configured to be vertically openable and closable around a hinge 196 provided on the center side of the machine body.

  In the above configuration, when removing the handling cylinder 26, as shown in FIG. 13, the upper cover body 195 is opened, the transmission belt 180 wound around the rotary pulley 187 is removed, and the front and rear auxiliary plates 191 and 192 are removed. After loosening the bolts to be fastened and removing the auxiliary plates 191, 192, for example, with a hoist or a crane, the bearing portions 183, 184 of the barrel shaft 26a are placed along the front and rear guide grooves 189, 190, and the barrel 26 Can be raised with each unit. In addition, since the handling cylinder 26 of this embodiment is a product made from a synthetic resin, it can also be pulled up manually.

  On the contrary, when attaching the handling cylinder 26, with the upper cover body 195 opened, the front and rear bearing portions 183 and 184 of the handling cylinder shaft 26a are moved along the front and rear guide grooves 189 and 190 with a hoist or crane, for example. After the handling cylinder 26 is lowered with the unit, the bearing portions 183 and 184 of the handling cylinder shaft 26a corresponding to the bottoms of the guide grooves 189 and 190 and the notched grooves 193 and 194 of the auxiliary plates 191 and 192, respectively. The auxiliary plates 191 and 192 may be bolted in a state in which is inserted.

  Therefore, according to the configuration of the present embodiment, the handling cylinder 26 as the driving member is easily attached to or removed from the front and rear partition walls 181 and 182 as the support member together with the rotary pulley 187 and the handling cylinder shaft 26a in units. In this case, the maintenance / replacement work is much easier.

(5). Next, the attachment / detachment structure of the waste cutter 35 will be described with reference to FIGS. 14 to 16.

  In the upper and lower opening substantially box-shaped rejection case 200 provided at the rear portion of the threshing device 5, a rejection cutter 35 as a rejection cutting device is provided. The exclusion cutter 35 is also an example of a drive member, and includes a pair of front and rear cutter shafts 201 and 202 and disk-shaped disc blades 203 and 204. On the front cutter shaft 201, a plurality of low-speed disk blades 203 are arranged at equal intervals, and on the rear cutter shaft, a plurality of high-speed disk blades 204 are arranged at equal intervals.

  The cutter shafts 201 and 202 are pivotally supported by the left and right side plates 200a and 200b of the waste case 200 in a rotatable manner. Both cutter shafts 201 and 202 extend in parallel in the left-right direction in a state where the low-speed disk blades 203 and the high-speed disk blades 204 are alternately arranged and the outer peripheral portions are overlapped in a side view. Cover blades 205 are attached to portions of the cutter shafts 201 and 202 near the left and right ends to prevent the wrapping of the waste. The waste conveyed in the waste case 200 by the waste chain 34 is cut to a suitable length by the disc blades 203 and 204, and then the waste formed on the lower surface side of the waste case 200. It is discharged from the outlet (not shown).

  A rotation input pulley 206 serving as a power transmission unit is fixed to a front end portion of the rear cutter shaft 202 that protrudes outward from the left side plate 200 a of the waste case 200. A transmission belt 208 is wound around a drive pulley 207 in front of the waste case 200 driven by power. A base end portion of a tension arm 209 with a tension pulley 210 is pivotally supported on the left side plate 200a of the evacuation case 200 so that the transmission belt 208 can be turned up and down in a direction in which the transmission belt 208 is tensioned or relaxed. A position holding spring 212 for holding the position of the tension pulley 210 is connected to the pivot shaft 211 of the tension arm 209.

  A drive spur gear 213 is fixed to a portion of the rear cutter shaft 202 between the rotary input pulley 206 and the left side plate 200 a of the evacuation case 200. The drive spur gear 213 meshes with a driven spur gear 214 fixed to a front end portion of the front cutter shaft 201 protruding outward from the left side plate 200a of the rejection case 200. The rotational power of the rear cutter shaft 202 is transmitted to the front cutter shaft 201 by the meshing of both the spur gears 213 and 214. The driving spur gear 213 and the driven spur gear 214 also correspond to the power transmission unit.

  As is apparent from the above configuration, in this embodiment, the rotary input pulley 206 and the drive spur gear 213 are integrated into a unit with the rear rejection cutter 35 (the rear cutter shaft 202 and the high-speed disc blade 204). Yes (has a cassette structure). The driven spur gear 214 is unitized integrally with the front rejection cutter 35 (the front cutter shaft 201 and the low-speed disc blade 203) (has a cassette structure).

  The left and right side plates 200a, 200b of the waste case 200 have upward opening front guide grooves 215, 216 for rotatably supporting the front cutter shaft 201 and upward opening shapes for rotatably supporting the rear cutter shaft 202. The rear guide grooves 217 and 218 are respectively formed symmetrically.

  A left cover plate 219 for closing guide grooves 215 and 217 adjacent to each other in the front-rear direction is bolted to the upper portion of the outer surface of the left side plate 200a in the waste case 200 so as to be detachable. The left cover plate 219 is formed with a pair of front and rear cutouts 221 and 223 that open outward (downward). Similarly, the right cover plate 220 for closing the guide grooves 216 and 218 adjacent to the front and rear is also bolted to the upper portion of the outer surface of the right side plate 200a in the evacuation case 200 in a detachable manner. The right cover plate 220 is also formed with a pair of front and rear cutouts 222 and 224 that open outward (downward).

  The left and right plates 200a and 200b are shifted left and right so that the ends of the corresponding cutter shafts 201 and 202 can be rotated by the bottoms of the guide grooves 215 to 218 and the cutout grooves 221 to 224 of the left and right cover plates 219 and 220, respectively. It is pinched impossible. The upper surface opening of the evacuation case 200 is covered with a lid cover body 225. The lid cover body 225 is configured to be vertically openable and closable around a hinge 226 provided on the threshing device 5 side. The rotary input pulley 206, the spur gears 213, 214, etc. on the left side plate 200a side of the waste case 200 are covered with a protective cover 227 for blindfolding.

  In the above configuration, when removing the pair of waste cutters 35, the lid cover body 225 is opened, the protective cover 227 is removed, the transmission belt 208 wound around the rotation input pulley 206 is removed, and the left and right cover plates are removed. After the bolts for fastening 219 and 220 are loosened and the cover plates 219 and 220 are removed, the discharge cutter 35 can be pulled up together with the end of the cutter shafts 201 and 202 along the guide grooves 215 to 218. That's fine.

  On the other hand, when attaching the evacuation cutter 35, with the lid cover body 225 opened, the evacuation cutter 35 is lowered together with the end of each cutter shaft 201, 202 along the guide grooves 215 to 218. After that, the left and right cover plates 219, 215, 218, 218, 224, and the cutout grooves 221-224 of the left and right cover plates 219, 220 sandwich the ends of the corresponding cutter shafts 201, 202, respectively. 220 may be bolted.

  Therefore, according to the configuration of the present embodiment, the left and right side plates 200a and 200b of the rejection case 200 as a support member are connected to the rejection cutter 35 as a drive member together with the rotary input pulley 206 and the spur gears 213 and 214 as a unit. In this case, maintenance and replacement work is much easier.

(6). Others The present invention is not limited to the above-described embodiment, and can be embodied in various forms. For example, the invention of the present application is not limited to the cutting blade device 52, the culm pulling device 53, the handling cylinder 26, and the rejecting cutter 35, but can be applied to any device that contacts the culm while driving back and forth or rotating (drive member). is there. In addition, the configuration of each unit is not limited to the illustrated embodiment, and various modifications can be made without departing from the spirit of the present invention.

It is a left view of a combine. It is a right view of a combine. It is a top view of a combine. It is left side sectional drawing of a threshing apparatus. It is a right view of the lower part of a reaping device. It is a top view of a reaping device lower part. It is an expansion right view of a cutting blade apparatus. It is a schematic front view which shows the inside of a raising case. It is an isolation | separation perspective view which shows the connection structure of a raising case and a raising drive pipe. It is a cross-sectional side view of a pulling gear case. It is a sectional front view of a threshing apparatus. It is a cross-sectional rear view of a threshing apparatus. It is a principal part expanded sectional front view of the threshing apparatus which shows the state which open | released the upper cover body. It is an enlarged left side view of a waste cutting device. It is an expansion right side view of a waste cutting device. It is a cross-sectional top view of a waste cutting device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling machine body 3 Cutting device 5 Threshing device 26 Handling cylinder 26a Handling cylinder shaft 35 Cutting cutter 51 Cutting frame 52 Cutting blade device 53 Flour raising device 81, 82 Side divider 121 Knife head 125 Safety cover 128 Push pull wire 151 Pulling drive Shaft 180 Transmission belt 181 Front partition wall 182 Rear partition wall 187 Rotation pulleys 189 and 190 Guide grooves 191 and 192 Auxiliary plate 200 Exhaust case 206 Rotation input pulleys 213 and 214 Spur gears 215 to 218 Guide grooves 219 and 220 Cover plate

Claims (6)

A reaping device for reaping uncut cereal grains in a field, a threshing apparatus for threshing the harvested corn grains supplied from the reaping apparatus, and a slaughtering device for cutting the sewage discharged from the threshing apparatus. Each of the devices is a combine having a drive member that comes into contact with the cereal while reciprocating or rotating,
The drive member is integrally provided with a power transmission unit that receives a driving force from a power source, and the drive member is replaced with the power transmission unit by a support member that supports the drive member in a drivable manner. Attached as possible,
Combine. The drive member is a horizontally long cutting blade device disposed below a cutting frame that constitutes the framework of the cutting device, and the rear side of the cutting blade device slides from the left and right directions on the lower surface of the cutting frame. The guide rail as the support member that is detachably held in a state of being fitted is fixed.
The combine according to claim 1. On the left and right sides of the reaping device, there are provided side dividers that can change the posture between a working posture projecting outward in the left-right direction and a storage posture close to the reaping device,
At the part near the side divider of the lower surface of the cutting frame, the posture is changed to a mounting posture surrounding the blade edge side of the cutting blade device and a retracting posture away from the blade edge side in conjunction with the posture changing movement of the side divider. A changeable safety cover is installed,
The combine according to claim 2. The drive member is a pulling case with a pulling tine that raises an uncut grain culm in a field, and a pulling gear case as the support member is connected to a vertical pulling drive pipe in the cutting device. The back surface is removably connected, and the pulling drive shaft as a power transmission portion protruding outward from the back surface of the pulling case is detachably fitted to the gear mechanism in the pulling gear case. Yes,
The combine according to claim 1. The drive member is a handling cylinder rotatably arranged in a handling chamber of the threshing device, and in an upward opening-shaped guide groove formed on the front and rear partition walls as the support member that partitions the handling chamber, A handling cylinder shaft that rotates the handling cylinder is mounted so as to be able to be pulled up, and a rotation pulley as the power transmission unit is provided at the tip of the handling cylinder axis.
The combine according to claim 1. The drive member is a waste cutter as a waste cutting device rotatably disposed in a waste case at the rear of the threshing device, and is formed on left and right side plates as the support member in the waste case. A cutter shaft for rotating the waste cutter is mounted in the upward opening-shaped guide groove so as to be able to be pulled up, and a rotation input pulley as the power transmission unit is provided at the tip of the cutter shaft. ,
The combine according to claim 1.

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