JP2016010356A - Combine-harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine-harvester capable of preventing the tip of a divider (a grass dividing body) from coming into contact with a ridge when reaping grain culm at the ridge edge, and improving safety.SOLUTION: In a scattering combine-harvester, a reaping part is mounted to a front part of a self-traveling machine body in a freely liftable manner. The combine-harvester is provided with: a divider provided in the reaping part for regulating a reaping range of grain culm planted in a farm field; a liftable and rotatable raking reel comprising a plurality of tines for raking the grain culm; a reaping blade device for reaping the grain culm raked by the raking reel; a raking auger for raking the grain culm reaped by the reaping blade device; and a platform for substantially surrounding the raking auger. The front end side of the raking reel is disposed in front of the divider tip at least when the raking reel is at the lowermost position. The trajectory of the tine tips pass by the divider tip and the upper surface of the reaping blade device in a side view during the rotation of the raking reel.

Description

  The present invention relates to a combine, and more particularly to a combine that is configured to prevent damage to a divider (herbaceous body) that is provided when harvesting a fallen cereal cocoon.

  Conventionally, for example, there is one disclosed in Patent Document 1 as one form of a combine. That is, in Patent Document 1, as the traveling machine body travels, the dividers provided at the front left and right ends separate the harvest target culm from the non-harvest target culm, and the reaping and conveying device behind the divider. A structure is disclosed in which a rotating reel disposed above the front part of the raker scrapes the harvested grain culm separated by the left and right dividers toward the rear. Thus, since the divider is positioned forward of the rotating reel, it is easier for an operator to gaze at the position of the divider when cutting the culm.

JP 2010-227019 A

  However, in the technique described in Patent Document 1 described above, there is a certain effect in that it is easy to define the harvesting range of the cereals by the left and right dividers. If the cedar that has fallen to the top is to be harvested, even if the take-up reel is lowered in order to make the lying cereal to be in an upright posture, the cereal inward of the tip of the divider is only in the upright posture. The work must be carried out with the grain pod located at the tip still lying down. That is, it is difficult for the operator to judge the boundary because the overlaid grain culm covers the boundary between the field and the culm. Therefore, in order to prevent the left divider from coming into contact with the cocoon and damaging it, the left divider must be positioned in an area that is clearly determined not to be rigged and the mowing operation must be performed. This will leave behind the fallen cereal.

  In addition, when the traveling direction of the combine is deviated to the heel side, the tip of the divider comes into contact with the heel first without notice. It is not preferable from the viewpoint of safety that the tip of the divider is in contact with the heel, and there is a possibility that the divider is damaged. The same applies to a case where a cocoon approaches the front, and it is difficult to determine the boundary between the field and the cocoon due to a fallen cereal cocoon, which may damage the divider.

  Therefore, the present invention provides a combine that can prevent the tip of a divider (herbaceous body) from coming into contact with the cocoon when cutting the fallen cereal cocoon on the heel and can improve safety. With the goal.

  The combine which concerns on invention of Claim 1 attaches a cutting part to the front of the self-propelled body main body so that raising / lowering is possible, and a divider which prescribes the cutting range of the grain culm planted in the field in the cutting part, A rotatable and rotatable scraping reel having a plurality of tines, a cutting blade device that cuts off the culm scraped by the scraping reel, and a scraping device that scrapes the culm cut by the cutting blade device. In a combine provided with a loading auger and a platform that substantially surrounds the scratching auger, at least when the scraping reel is in the lowest position, the front end side of the scraping reel is disposed forward of the divider tip, and The trajectory of the tine tip passes through the divider tip and the vicinity of the upper surface of the cutting blade device in a side view when the internal reel rotates.

  In such a combine, at least when the scraping reel is at the lowest position, the front end side of the scraping reel is disposed in front of the tip of the divider so that the straw is on the left side of the combine and In the case of harvesting, the cereal grain in front of the tip of the divider can be in a substantially upright position, and the boundary between the cocoon and the field can be seen, so that the divider can be seen without contact with the cocoon. The cocoon can be easily reaped.

  In addition, even when the traveling direction of the combine is shifted to the heel side, it is possible to correct the traveling direction after noticing the shift of the traveling direction on the front end side of the take-up reel in front of the divider, and the time until the divider touches the heel. Since there is a grace period, damage to the divider can be prevented. This is the same when the heel approaches forward.

  In addition, even when the pestle approaches forward when cutting the fallen pestle, the scraping reel located at a higher position than the heel does not come into contact with the heel, and the cereals ahead of the tip of the divider as described above. Since it can be in a substantially upright posture and the boundary between the straw and the field can be seen, it is possible to easily harvest the grain at the edge without the divider coming into contact with the straw.

  Furthermore, since the trajectory of the tine tip passes through the divider tip and the vicinity of the top surface of the cutting blade device in a side view when the scraping reel is rotated, the fallen culm is surely secured from the tip of the divider that defines the cutting range. Since the culm can be reliably guided to the cutting blade device in the substantially erected posture, the culm can be cut efficiently and the tip side portion can be scraped.

  The combine according to the invention of claim 2 is the combine according to the invention of claim 1, wherein the tine has a concave curved shape in the rotation direction of the take-up reel from the tine main piece of the tine to the tine tip. It is characterized by being formed.

  In such a combine, since the shape of the tine piece is formed in a concave curved shape in the rotation direction of the take-up reel, the tine is not easily resisted in the cereal when the fallen cereal is raked, and the tine is easily removed. Therefore, the rolling of the cereal at the time of stirring is prevented, and the stirring efficiency can be improved.

  The combine which concerns on invention of Claim 3 is a combine which concerns on invention of Claim 1 or Claim 2, Comprising: The angle made by the tine tip | tip which adjoins by rotation of a take-in reel, and the upper surface of a cutting blade apparatus is made. It is characterized by having a substantially right angle.

  In such a combine, since the angle formed by the tine tip and the upper surface of the cutting blade device which are close to each other by the rotation of the take-up reel is configured to be substantially a right angle, the corn straw is guided to the cutting blade device at a substantially right angle. In addition, the scraped rice cake can be efficiently urged to the cutting blade device, and the cutting ability of the cutting blade device can be maximized.

  The combine which concerns on invention of Claim 4 is a combine which concerns on invention of any one of Claim 1 thru | or 3, Comprising: When a grain straw is scraped in by a scraping auger, a grain straw is temporarily The cutting frame that forms the bottom of the platform to be held on the front is characterized in that the front half of the cutting frame is formed at an angle toward the front upper side of the combine.

  In such a combine, since the front half of the harvesting frame is formed at an angle toward the front upper side of the combine, the cereals cut by the cutting blade device and delivered to the harvesting frame are unlikely to fall forward from the harvesting frame. Since it becomes easy to move to the feeder house side behind the take-up auger, the take-up efficiency can be improved.

  According to the present invention, since the leading end of the take-up reel is disposed in front of the leading end of the divider, it is easy to recognize the front position of the culm that is actually trimmed, and even if it is a stubble culm, It is possible to easily cut away by gazing at the internal reel, and to prevent the tip of the divider from coming into contact with the cocoon and improve safety.

It is the left view which showed the whole structure of the combine which concerns on this embodiment. It is the right view which showed the whole structure of the combine which concerns on this embodiment. It is the top view which showed the harvesting part of the combine which concerns on this embodiment. It is the left side fragmentary sectional view showing the harvesting part of the combine concerning this embodiment. It is the side view and perspective view which showed the tine of the combine which concerns on this embodiment. It is the disassembled perspective view which showed the tine attachment structure of the combine which concerns on this embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. A shown in FIGS. 1 and 2 is an ordinary combine (hereinafter simply referred to as “combine”). The combine A has the cutting part 2 attached to the front end part of the traveling machine body 1 capable of self-running so as to be movable up and down. And the cutting part 2 is equipped with the main cutting blade apparatus 3 which cuts the tip side part from the midway part of the napped grain culm. Note that the combine A according to the embodiment of the present invention includes the auxiliary cutting blade device 4 that cuts the residue of the napped hair that has been cut off by the main cutting blade device 3 from the side of the tip.

  As shown in FIGS. 1 and 2, the traveling machine body 1 has a machine body frame 6 installed between a pair of left and right traveling parts 5, 5. And on the left side on the machine body frame 6, a threshing unit 7 for threshing the ear side part of the harvested cereal and a sorting unit 8 for selecting the threshed grain are arranged in the upper and lower stages, and these A dust discharge port portion 9 for discharging sawdust and the like to the field outside the machine is opened rearward. In addition, on the right side of the machine body frame 6, a driving unit 10 that performs a driving operation is disposed in the front part, and a grain storage unit that stores the grain (clean grain) selected by the screening unit 8 behind it. 11 is provided, and the grain unloading part 12 for unloading the grain stored in the grain storing part 11 to the outside is provided at the rearmost part. Below the rear part of the operation unit 10, an engine 13 or the like as a prime mover unit serving as a power source is disposed.

  The mowing unit 2 includes a rectangular cylindrical feeder house 14 having an axis line in the front-rear direction, a platform 15 serving as a horizontally long bucket-shaped grain header connected to the front end of the feeder house 14, and a front lower end edge of the platform 15. , A pair of left and right weed dividers 16 and 16 formed forwardly extending from the front left and right sides of the platform 15, and a front upper upper portion of the platform 15. And a take-up reel 17 provided.

  The rear end portion of the feeder house 14 pivotally supports a drive shaft 60 (feeder house conveyor shaft), which will be described later, with the axis line directed in the left-right direction to the front portion of the threshing portion 7, and the lower surface portion of the feeder house 14 and the body frame 6. An elevating cylinder (not shown) is interposed between the front end portion and the elevating hydraulic cylinder is extended and contracted, so that the cutting portion 2 can be raised and lowered with the drive shaft 60 as an elevating fulcrum.

  Further, the cutting unit 2 includes a sub-cutting blade device 4 that is attached to the front end portion of the machine body frame 6 by being drooped forward and downward. A supply conveyor 18 is disposed in the feeder house 14, and a take-up auger 19 (platform auger) is mounted in the platform 15 so as to be rotatable about a horizontal axis. The take-up reel 17 is mounted so as to be rotatable about an axis in the left-right direction, and is continuously driven to the take-up auger 19 side while rotating to the tip of the napped culm. The operation parts of the above-described parts are configured to be interlocked with the engine 13 via respective interlocking mechanisms to be described later and to operate appropriately.

  In the combine A comprised in this way, in the field, if it is a normal napping culm, the cutting part 2 will be raised until it becomes the desired ground height (the nail-cutting corn cutting position), and in that state The traveling machine body 1 is caused to travel. By doing so, the napped cedar is weeded by the dividers 16, 16, and the head portion of the cerealed cereal is scraped by the scraping reel 17 from the middle part of the cereal by the main cutting blade device 3. Mow the side of the tip.

  Further, in the case of a fallen cedar, the traveling machine body 1 is in a state where the cutting reel 2 is in the lowest position, that is, the cutting reel 17 is in the lowest position while the cutting frame 50 (the bottom of the platform) of the platform 15 is in contact with the ground. To run. By doing so, the fallen cereal is scraped by the scraping reel 17.

  The tip side portion of the corn that has been cut at a desired cutting position is scraped into the platform 15 by the scraping auger 19 and supplied to the threshing portion 7 through the feeder house 14 by the supply conveyor 18. The tip side part of the grain pod supplied to the threshing unit 7 is threshed by the threshing unit 7, and the grain threshed by the threshing unit 7 is subjected to a sorting process by the sorting unit 8. The grain (clear grain) subjected to the sorting process by the sorting unit 8 is stored in the grain storage unit 11. The grain stored in the grain storage unit 11 is appropriately carried out of the machine by the grain carrying-out unit 12.

  And the sawdust etc. which were separated from the grain by the threshing unit 7 are discharged from the dust outlet 9 to the field outside the machine. Further, the residue from which the tip side portion has been cut is cut from the stock base portion by the auxiliary cutting blade device 4 and left in the field.

  In the above configuration, as shown in FIGS. 1, 3, and 4, the power transmission structure of the combine A according to the present embodiment is configured as follows. In other words, the drive shaft 60 of the supply conveyor 18 built in the feeder house 14 is linked to the engine 13 mounted on the traveling machine body 1, and the cutting spindle is connected to the drive shaft 60 of the supply conveyor 18 via a main shaft transmission mechanism (not shown). 61 is linked and linked.

  Further, the cutting main shaft 61 includes a reel transmission mechanism that drives the take-up reel 17 via a sprocket or chain (not shown), an auger transmission mechanism that drives the take-up auger 19, and a cutting blade that drives the main cutting blade device 3. A transmission mechanism is linked and connected, and these are surrounded by an upper right cover 20 and a lower right cover 21.

  The take-up reel 17 and the take-up auger 19 are rotated counterclockwise in the partial cross-sectional view in the left side view in FIG. 4 by the reel transmission mechanism and the auger transmission mechanism, and the main cutting blade device 3 transmits the cutting blade. As shown in FIG. 3, the mechanism causes the plurality of cutting blades 23 disposed between the plurality of receiving blades 22 that are fixed blades disposed in the left-right direction to reciprocate in the left-right direction.

  The take-up auger 19 is formed by attaching helical blades 53, 53 directed to the intake port 31 of the feeder house 14 on the outer periphery of the cylindrical drum 52, and a plurality of rod-like fingers in the drum 52. The finger 65 can be projected and retracted from the outer peripheral portion of the drum by being arranged in conjunction with the rotation of the take-in auger 19.

  Accordingly, the tip side portion of the culm tilted to the side of the auger 19 by the take-up reel 17 is taken into the platform 15 by the finger 65, and the tip side portion of the cereal squeezed into the platform 15 is a blade body. By 53 and 53, it is laterally fed to the intake port 31 and sent into the feeder house 14.

  Thus, the driving force of the engine 13 is configured so that not only the supply conveyor 18 but also the mechanisms of the respective parts of the cutting unit 2 can be driven simultaneously via the drive shaft 60.

  In the combine A configured as described above, the present embodiment is mainly characterized by the positional relationship of the take-up reel 17, and the configuration of the parts related to the cutting unit 2 such as the take-up reel 17 will be described below. This will be described with reference to FIGS.

  The take-up reel 17 of the combine A according to the present embodiment is in the position relationship shown in FIG. 4, that is, the state in which the front end side of the take-up reel 17 is disposed at a distance L ahead of the tip 47 of the divider 16. This is the normal working condition for the cereal.

  The take-up reel 17 is disposed above the pair of left and right dividers 16 and 16 so as to be able to rotate and rotate, and the planted cereal on the cutting side that has been weeded by both dividers 16 and 16 is rotated toward the platform 15 side. I'm trying to scratch it. Further, the distance L between the front end side of the take-in reel 17 and the tip 47 of the divider 16 is configured to be approximately 200 mm.

  The take-up reel 17 lays an arm support shaft 24 with its axis line in the left-right direction on the upper rear end of the platform 15. The left and right ends of the arm support shaft 24 pivotally support the base ends (rear ends) of a pair of left and right support arms 25 and 25 extending in the front-rear direction. A reel elevating cylinder 26 is interposed between the middle part of each support arm 25 and the side wall of the platform 15 so that both the support arms 25 and 25 can be raised and lowered around the arm support shaft 24.

  Between the front end portions (front end portions) of the support arms 25, 25, a reel support shaft 27 extending in the left-right direction is rotatably supported around its axis, and the reel support shaft 27 is paired with a leading end in the front-rear direction. The position is adjustable. A pair of left and right rotating support bodies 45, 45 are attached to the left and right end portions of the reel support shaft 27 so as to be opposed to the left and right. Both rotary supports 45, 45 are formed of a metal plate-like body in a regular pentagon shape, and are pipes extending in the left-right direction via tine bar pivots 28 between the left and right corners (tops). A (circular tube) tine bar 29 is laid horizontally so as to be rotatable about its axis. A plurality of tines 32 are attached to each tine bar 29 in a hanging manner with a certain interval in the left-right direction. Therefore, the front end side of the take-up reel 17 indicates the position of the tine bar 29 when the tine bar 29 protrudes most forward of the traveling machine body 1 when the take-up reel 17 rotates.

  In this way, when the reel support shaft 27 is rotated counterclockwise in the left side view, the pair of left and right rotation supports 45, 45 attached to the reel support shaft 27 are also rotated counterclockwise to rotate both. The tine 32 attached between the supports 45 and 45 via the tine bar 29 moves around the outer periphery of the rotary support 45. At this time, the tine posture holding mechanism 30 holds at least a tine 32 that acts on the planted cereal among the rotating tines 32 in a predetermined hanging posture, and the tine 32 held in the hanging posture is planted. It works to stir into the cereals.

  The cutting unit 2 configured as described above scrapes the harvested planted cereal with the scraping reel 17 and weeds the pair of left and right dividers 16, 16, and the planted cereal that has been scraped. The tip side of the head is cut by the main cutting blade device 3 and scraped into the platform 15. Then, the cereals scraped into the platform 15 are laterally fed into the intake port 31 of the feeder house 14 by the rake auger 19, and the whole cereals are further fed by the supply conveyor 18 in the feeder house 14. It is made to carry in (throw in) the threshing part 7 arrange | positioned in 1 back.

  In the cutting unit 2 configured as described above, when at least the scraping reel 17 is at the lowest position, the front end side of the scraping reel 17 is disposed in front of the divider tip 47 so that the scissors are combined. On the left side, when the cereals lying on the heel side are to be harvested, the cereals in front of the divider tip 47 can be in a substantially upright posture, and the boundary between the cocoon and the field can be visually recognized. The divider 16 can easily mow the cocoon at the edge without contacting the cocoon.

  Even if the traveling direction of the combine A shifts to the heel side, the traveling direction can be corrected after recognizing the shift of the traveling direction on the front end side of the scraping reel 17 in front of the divider 16, and the divider 16 contacts the heel. Since there is a grace period until this is done, damage to the divider 16 can be prevented. This is the same when the heel approaches forward.

  Further, even when the pestle is pushed forward when cutting the fallen grain culm, the scraping reel 17 located at a higher position than the cocoon does not come into contact with the cocoon, and the grain ahead of the divider tip 47 as described above. Since the cocoon can be in a substantially upright posture and the boundary between the cocoon and the field can be seen, the cocoon cocoon can be easily cut without the divider 16 coming into contact with the cocoon.

  Further, the take-up reel 17 of the combine A according to the present embodiment is such that the locus t of the tip of the tine 32 and the main cutting of the divider 16 in the side view when the take-up reel 17 rotates at the lowest position of the take-up reel 17. The blade device 3 is configured to pass near the upper surface. Therefore, the following will specifically describe the positional relationship between the structure of the tine 32 and the main cutting blade device 3 and the like.

  Note that the combine A according to the present embodiment has the positional relationship shown in FIG. 4, that is, the positional relationship between the take-up reel 17 and the platform 15 and the like, which is the locus t of the tip of the tine 32 as described above, with respect to the fallen cereal. This is a normal working state.

  As shown in FIGS. 5 and 6, the tine 32 has a tine main piece 38 that acts on the culm and a base end portion that extends at a position ahead of the base end portion (upper end portion) of the tine main piece 38. A coil body forming piece 39 bent in a string shape, an inverted U-shaped sandwiching piece 41 extending upward from the coil section forming piece 39 through which a bolt 40 can be inserted, and an end of the sandwiching piece 41 are connected to the traveling machine body 1. The positioning piece 42 extending to the rear side is integrally formed by bending one round bar material which is a spring steel material.

  The tine main piece 38 is formed by extending in the vertical direction, and the shape up to the tine tip is formed in a gentle curved shape that is concave in the rotation direction of the take-up reel 17. The tine main piece 38 maintains a posture in which the tine main piece 38 hangs vertically downward from the tine bar 29 so that the tine main piece 38 works to push the planted cereal into the platform 15.

  In this way, by forming the shape up to the tip of the tine into a concave gentle curve in the rotational direction of the take-up reel 17, the tine 32 is less susceptible to resistance in the cereal when the cereal is raked. Is easy to come off, so that the rolling of the cereal at the time of scraping is prevented, and the scraping efficiency can be improved.

  As shown in FIG. 6, the tine bar 29 is provided with a belt-like contact fixing plate 34 extending vertically from the lower portion of the pipe-shaped tube portion 33 and having the axial direction of the tube portion 33 as a longitudinal direction. A tine fixing portion 37 having a pair of bolt insertion holes 35 in the upper portion and a tine positioning hole 36 in the lower portion is disposed at a predetermined interval in the left-right direction.

  The tine 32 is attached to the tine bar 29 by positioning the tine 32 on the front side of the tine fixing portion 37 with the coil portion forming piece 39 in front and communicating the inner space of the clamping piece 41 with the bolt insertion hole 35. The piece 42 is inserted into the tine positioning hole 36. Then, the tine 32 is clamped and fixed by the bolt 40 in a state where the tine 32 is sandwiched between the L-shaped metal fitting 43 and the tine bar 29.

  Specifically, the L-shaped metal fitting 43 is provided with metal-side bolt insertion holes 44 corresponding to the respective bolt insertion holes 35 formed in the contact fixing plate 34. The bolt 40 is inserted in a state where the inner space and the bolt insertion hole 35 communicate with each other, and a tine 32 is fixed by screwing with a nut (not shown) on the back side of the contact fixing plate 34. The nut may be fixed in advance to the back surface of the contact fixing plate 34 by welding or the like in a state of communicating with the bolt insertion hole 35.

  By fixing the tine 32 to the tine bar 29 in this way, the coil portion forming piece 39 is elastically biased so that the tine main piece 38 that is counteracted from the rear to the front by the planted cereal cocoon holds the suspended posture. Further, since the upper portion of the coil portion forming piece 39 is located on the outer bottom surface of the lower piece 46 of the L-shaped metal fitting 43, the upward movement of the coil portion forming piece 39 that reacts with the tine main piece 38 is moved downward. Therefore, it is possible to reliably apply an elastic bias that maintains the hanging posture of the tine piece 38.

  Further, the tine 32 can be easily positioned simply by inserting the positioning piece 42 of the tine main piece 38 into the tine positioning hole 36.

  Next, the positional relationship between the tine 32 and the main cutting blade device 3 will be described.

  As shown in FIG. 3, which is a plan view, the tine 32 is disposed at a position that is aligned in plan view with a virtual line k that indicates a substantially central position between the receiving blades 22 adjacent to the left and right. In addition, a plurality of tines 32 are attached to each tine bar 29 at intervals in the left-right direction, and the tines 32 attached to the adjacent tine bars 29 are attached with a shift of a half pitch. That is, if the interval between the receiving blades 22 adjacent to the left and right is defined as a pitch P, the tines 32 (specifically, the tine main pieces 38) attached to each tine bar 29 have a pitch P of two, The tines 32 (specifically, the tine strips 38) attached to the adjacent tine bars 29 are spaced by one pitch P.

  In this way, since each tine 32 is arranged above the substantially central portion between the receiving blades 22 adjacent to the left and right, the stalks of the planted cereals by each tine 32 are made smooth and steady. Then, the cutting of the planted cereal culm by the subsequent auxiliary cutting blade device 4, and further, each of the scraping and transporting operations by the scraping auger 19 is smoothly performed.

  The tip of the tine main piece 38 configured as described above is configured to rotate along the locus t as shown in FIG. 4 by the rotation of the scraping reel 17 at the lowest position of the scraping reel 17. ing. That is, it passes through the divider tip 47 and the vicinity of the upper surface of the main cutting blade device 3 and also passes through the vicinity of the finger 65 of the take-up auger 19 in a side view. Moreover, it passes so that the angle formed by the adjacent tine tip and the upper surface of the main cutting blade device 3 is substantially a right angle. Note that the gap between the tip of the tine 32 and the upper surface of the main cutting blade device 3 (strictly, the upper surface of the receiving blade 22) is such that the tine 32 is brought into the main cutting blade device 3 by spring back when the tine 32 scrapes the field. It is desirable to make it approximately 30 mm so as not to bite.

  As described above, the trajectory t of the tip of the tine 32 passes through the divider tip 47 and the vicinity of the upper surface of the main cutting blade device 3 in a side view when the take-up reel 17 rotates, so that the divider 16 defines the cutting range. It is possible to ensure that the inverted cedar can be in a substantially upright posture from the tip 47 of the sword, and the culm can be reliably guided to the main cutting blade device 3 in a substantially upright posture, so that the cereal can be cut efficiently. You can scratch the tip side.

  In addition, since the angle formed by the tip of the adjacent tine 32 and the upper surface of the main cutting blade device 3 is configured to pass through at a substantially right angle, the cereal is substantially perpendicular to the receiving blade 22 and the cutting blade 23. Therefore, the scraped rice cake can be efficiently urged between the receiving blades 22 and 22, and the cutting ability of the main cutting blade device 3 can be maximized.

  Further, since the locus t of the tine tip is configured to reach the lower part of the main cutting blade device 3, that is, to reach the ground of the field in a virtual state, the tine 32 is also applied to the lying grain culm lying in the field. Can be rubbed in strongly.

  By forming the tine 32 in this way, even when the tine 32 scratches the field, the load (reaction) on the tine 32 acts in the clamping direction of the clamping piece 41, so that the clamping piece 41 is removed from the tine bar 29. There is no fear of coming off. And since it can fix to the tine bar 29 firmly by the pinching piece 41 made of spring steel, and the same state can be maintained, the posture maintenance of the tine 32 and the scraping efficiency to the cereal by the tine 32 are good. Can be secured.

  Note that the combine A according to the present embodiment is configured such that the distance at which the stirrer auger 19 (strictly, the finger 65) and the tip of the tine 32 are closest to each other is as short as about 50 mm. The part can be scraped efficiently.

  Further, the combine A according to the present embodiment includes a cutting frame 50 that forms the bottom of the platform 15 that temporarily holds the tip side when the tip side of the cereal is scraped by the scraping auger 19. The front half 51 is formed with an inclination α facing the upper front side of the combine A. Hereinafter, the platform 15 will be specifically described.

  The platform 15 is formed in a bucket shape that is substantially the same width as the left and right width of the traveling machine body 1 and has a front opening. The platform 15 is connected to the intake port 31 (front end opening) of the feeder house 14 by opening the left side of the rear wall. In addition, a scraping auger 19 with a pivot axis oriented in the left-right direction is horizontally placed inside. The scraping auger 19 scrapes the tip side of the cereal that has been cut by the main cutting blade device 3 into the platform 15 and feeds it laterally into the intake 31 of the feeder house 14. The cereal is carried into (thrown in) the threshing section 7 disposed behind the traveling machine 1 by the supply conveyor 18 in the feeder house 14.

  Further, the cutting frame 50 of the platform 15 is formed with an inclination α of about 4 ° with the front half 51 facing the front upper side of the combine A. Accordingly, the stalks that have been scraped are temporarily placed on the upper surface of the cutting frame 50, that is, directly below the scraping auger 19.

  Thus, since the front half part 51 of the cutting frame 50 is formed toward the front upper side of the combine A, the tip side part of the cereal that has been cut by the main cutting blade device 3 and delivered to the cutting frame 50 is Since it becomes difficult to fall forward from the cutting frame 50 and it becomes easy to move to the feeder house 14 side behind the picking auger 19, the picking efficiency of the tip immediately can be improved. In addition, the inclination α of the cutting frame 50 is an angle at which the scooped tip side is difficult to drop forward, and is in a range of 3 ° to 6 ° in relation to the installation angle of the main cutting blade device 3 and the like. It is desirable.

  Note that the combine A according to the present embodiment is configured so that the distance W between the axial center of the scraping auger 19 and the rear end portion of the main cutting blade device 3 is approximately 420 mm. Can be smoothly stored in the platform 15.

  Further, as shown in FIG. 4, the combine A according to the present embodiment has dividers 16 and 16 as weed bodies disposed at the front end portions of the left and right side walls of the platform 15 when the cutting unit 2 is at the lowest position. A predetermined height H is provided between the lower end surface of the rice field and the field.

  Specifically, the divider tip 47 is formed so that the distance between the farm field and the lower end surface of the divider 16 is the highest, and the height H is approximately 200 mm.

  Thus, by providing a space having a predetermined height between the lower end surface of the divider 16 and the field, it is possible to avoid crushing or disturbing the fallen cereal by the divider 16, so It is possible to prevent leftovers.

  Further, when the fallen pestle is scraped up to the standing state by the tine 32 of the take-up reel 17, the fallen pestle is not affected by the divider 16 and enables a reliable scraping operation. Note that the height H between the lower end surface of the divider 16 and the field is desirably in the range of 150 mm to 300 mm in view of the strength of the grain straw and the positional relationship of the take-up reel 17.

  The preferred embodiment and the modification of the present invention have been described above. However, the present invention is not limited to the specific embodiment and the modification, and the gist of the present invention described in the claims is described. Various modifications and changes can be made within the range.

A Combine t Trajectory α Angle 1 Traveling machine body 2 Cutting part 3 Cutting blade device 15 Platform 16 Divider (herbicidal body)
17 Take-in reel 19 Take-in auger 32 Tine 38 Tine main piece 47 Divider tip 50 Cutting frame 51 First half

Claims (4)

A cutting part is attached to the front of the self-propelled machine body so that it can be raised and lowered, and the cutting part is equipped with a divider that defines the cutting range of cereals planted in the field and multiple tines that scrape the cereals. And a rotatable scraping reel, a cutting blade device that cuts cereals scraped by the scraping reel, a scraping auger that scrapes the stalks harvested by the cutting blade device, and the surrounding auger In a combine with a platform,
At least when the scraping reel is at the lowest position, the front end side of the scraping reel is disposed in front of the tip of the divider, and the trajectory of the tine tip is viewed from the side when the scraping reel is rotated and the cutting blade device. A combine that is configured to pass through the vicinity of the upper surface of the.   2. The combine according to claim 1, wherein the tine has a shape from a tine main piece of the tine to the tip of the tine formed in a concave curved shape in the rotation direction of the take-up reel.   The combine according to claim 1 or 2, wherein an angle formed by the tine tip and the upper surface of the cutting blade device that are close to each other by rotation of the take-up reel is substantially a right angle.   The cutting frame that forms the bottom of the platform that temporarily holds the culm when the culm is scraped by the auger auger is formed such that the front half of the reaping frame is formed at an angle toward the front upper side of the combine. The combine according to any one of claims 1 to 3, characterized in that:

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