JP2017051165A - Harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To deliver reaped crops to a feeder by laterally conveying the reaped crops by an auger favorably regardless of a kind and processing amount of the crops.SOLUTION: The harvester includes: a reaping processing part reaping crops and thereafter conveying laterally the crops toward a center part in a machine body lateral width direction to be joined; and a feeder conveying the crops conveyed laterally in the reaping processing part toward a machine body rear part. The reaping processing part includes: a reaping blade 15 reaping crops; an auger 16 with a spiral blade conveying laterally the reaped crops; a reaping frame 12 having a bottom plate 18 positioned in a lower part of the auger 16 and a back face plate 19 in a vertically facing posture positioned on a machine body rear side of the auger 16; and a conveyance guide 77 positioned on an inner face of the reaping frame 12 and transferring/guiding crops positioned between the auger 16 and reaping frame 12 to the feeder side.SELECTED DRAWING: Figure 8

Description

  The present invention includes, for example, a harvesting processing unit that harvests crops such as rice, wheat, soybeans, and corn, and then laterally feeds and merges the crops toward an intermediate portion in the width direction of the aircraft, and the crop that is laterally fed by the harvesting processing unit The present invention relates to a harvesting machine provided with a feeder that conveys the vehicle toward the rear of the machine.

  In the ordinary combine as the harvesting machine, the harvesting processing section is provided with an auger with spiral blades, and after the planted crop is harvested by the cutting blade, the bottom plate located below the auger and the longitudinal plate located on the rear side of the auger body. With the back plate in the orientation posture, while receiving the harvested crop, it is laterally fed by the feed action of the auger and conveyed backward by the feeder (for example, see Patent Document 1).

JP 2012-244924 A

  In the above conventional configuration, for example, if the harvested crop is not long and the amount of harvested crop is not so large, it is possible to feed the entire amount backward by the feeder with the auger properly fed by the auger It is.

  However, for example, if the crop to be harvested is long and the amount of crop to be harvested is large, the auger does not work well and the crop stays in the middle of the auger transport. Then, there is a possibility that the transport clogging may occur. That is, when a large amount of a long crop is laterally fed by an auger, it may stay in a gap between the auger and the bottom plate or the back plate. Such crops are not transferred in the axial direction of the auger due to friction between the bottom plate and the back plate without being subjected to the lateral feeding action by the spiral blades of the auger. If such a staying crop is a long bean, the long bean crop may wrap around the outer periphery of the auger as the auger rotates. If it does so, the crops which are harvested sequentially after that will accumulate in a winding location, and there is a possibility that it may become a lump and may cause conveyance clogging.

  Therefore, it has been desired that the harvested crop can be satisfactorily traversed by the auger and delivered to the feeder regardless of the type and amount of the crop.

The characteristic configuration of the harvester according to the present invention is:
After cutting the crop, it is provided with a cutting processing unit that feeds and merges toward the intermediate part in the width direction of the aircraft, and a feeder that conveys the crop that is laterally fed by the cutting processing unit toward the rear of the aircraft,
The cutting processing unit includes a cutting blade for cutting a crop, an auger with spiral blades for laterally feeding the harvested crop, a bottom plate positioned below the auger, and a back in a vertical posture positioned on the rear side of the auger body. There is a cutting frame having a face plate, and a conveyance guide that is located on the inner surface of the cutting frame and that guides a crop positioned between the auger and the cutting frame to the feeder side.

  According to the present invention, the crops cut by the cutting blade are received by the cutting frame, are subjected to the lateral feeding action by the spiral blades of the auger, are laterally fed toward the intermediate portion in the lateral direction of the machine body, and are merged. Thereafter, the crops that have been cross-fed are delivered to the feeder and conveyed toward the rear of the machine by the feeder. At this time, the crop to be harvested is long, and when the amount of harvest is large and a large amount of harvested crop is carried in, it is located in the gap between the auger and the harvesting frame when traversed by the auger. The crops tend to stay without being subjected to the lateral feed effect of the auger spiral blades.

  In this way, the crops present in the gap between the auger and the cutting frame are not subjected to the lateral feed action by the spiral blade, but the rotational force along the rotational direction of the auger by the sliding action by the radial outer peripheral end of the spiral blade. Rotates while the crop rotates with the auger.

  And since the conveyance guide which acts on the crop located between an auger and a cutting frame is provided, a conveyance guide acts with respect to the crop which rotates together with an auger as mentioned above, and a crop is fed. Guide the transfer to the side. As a result, the crop can be prevented from staying in the gap between the auger and the cutting frame, and the cutting crop can be fed laterally.

  Therefore, regardless of the type and amount of the crop, the harvested crop can be satisfactorily fed by the auger and delivered to the feeder.

  In the present invention, it is preferable that the conveyance guide is constituted by a plate member provided over the bottom plate and the back plate, and a plurality of conveyance guides are provided at intervals in the lateral width direction of the machine body.

  According to this structure, a conveyance guide is comprised with a board member and it is provided over the bottom board and back board in a cutting frame. The bottom plate is formed by a plate body positioned below the auger and substantially in a posture along the longitudinal direction of the machine body, and the back plate is formed by a plate body positioned vertically on the rear side of the machine body of the auger. A connection portion between the bottom plate and the back plate is bent into an approximately L shape, and a substantially triangular space may be formed between the auger and the auger in a side view. When such a space is formed, there is a high risk that the crop will stay.

  Then, since the conveyance guide which consists of a plate member is provided over a baseplate and a backplate, it can be made to avoid that a crop stays in the space formed in the connection location of a baseplate and a backplate as mentioned above. In addition, since a plurality of conveyance guides are provided at intervals in the horizontal direction of the machine body, the crop feeding action can be exerted in a wide range in the horizontal direction of the machine body, and the horizontal feed transfer of the crop can be performed appropriately.

In the present invention,
The cutting processing unit is connected to the feeder in a state of being biased to one side in the lateral direction of the machine body with respect to the feeder,
It is preferable that the conveyance guide is provided at a location adjacent to the feeder inlet in a cantilever portion that protrudes in a cantilevered manner toward one side of the machine body width direction with respect to the feeder in the cutting processing unit.

  According to this configuration, the harvesting processing unit is biased to one side in the machine body width direction with respect to the feeder, but the crops harvested by the harvesting processing unit exist over the entire area in the machine body width direction of the harvesting processing unit. The harvested crop is then laterally fed by the auger toward the feeder entrance. At this time, in the cantilever portion that projects in a cantilevered manner to one side in the lateral direction of the machine than the feeder in the cutting processing unit, all the crops that are trimmed by the cantilevered portion are laterally fed toward the inlet of the feeder. . And in the place adjacent to the entrance of the feeder, the crop that has been laterally fed by the auger and the crop that has been cut and fed at that location will both exist, and the amount of crop will be greater than other parts. .

  In such a place where the amount of the crop is large, the stagnation of the crop is likely to occur. Therefore, the stagnation of the crop can be efficiently eliminated by providing a conveyance guide at a place adjacent to the entrance of the feeder.

  In the present invention, it is preferable that the conveyance guide is provided in a region extending from a central portion in the machine width direction of the cantilever portion of the cutting processing unit to an inlet of the feeder.

  According to this configuration, the conveyance guide is provided over a wide range of half of the cantilevered portion in the width direction of the machine body at a location where the amount of the crop is likely to increase.

In the present invention,
The auger includes a cylindrical drum and a spiral blade that is formed to rise radially outward from the outer periphery of the drum and spirally provided in the drum axial direction.
It is preferable that an inclined blade portion provided in an inclined posture in which the free end portion is located on the lower side of the crop feeding direction with respect to the base end portion at a location in the spiral blade close to the feeder entrance.

  As the spiral blade provided on the outer periphery of the drum rotates, the crop is pushed and moved laterally by the spiral blade feed surface, but as described above, the location close to the feeder inlet , The amount of crops increases, and a part of the crops is released radially outward by the centrifugal force associated with the rotation of the auger, which is likely to cause retention and winding around the auger. Furthermore, a part of the auger corresponding to the feeder inlet is provided with a scraping body that scrapes the crops that have been cross-fed into the feeder toward the inside of the feeder. In some cases, it is released in the form of lumps on the outer side, and such lumps of crops may cause clogging of conveyance.

  So, according to this structure, the inclination blade | wing part is provided in the location close | similar to the inlet_port | entrance of the feeder in a spiral blade | wing. In this inclined blade portion, the free end portion is located on the lower side in the crop feeding direction than the base end portion, so that the crop that is being laterally transferred by the feed surface of the spiral blade is located near the inlet of the feeder. , It can be suppressed by the inclined blade portion and can be prevented from being released radially outward by centrifugal force.

  As a result, the crop is released radially outward by centrifugal force and stays and winds around the auger, or a large amount of crop is released as a block at the place where the crop is scraped toward the inside of the feeder, causing clogging. Disadvantages such as occurrence can be avoided.

  In the present invention, it is preferable that the inclined blade portion is provided in a range extending from the inlet of the feeder to the front of the inlet from a position deviating from the lateral direction of the fuselage.

  When the inclined blades are provided only at a position deviated from the feeder entrance in the lateral direction of the machine body, the crops transferred to the location corresponding to the feeder entrance are discharged at once in the radial direction. There is a risk of clogging.

  On the other hand, according to this configuration, the inclined blade portion is provided not only at a position deviating from the feeder inlet in the lateral direction of the fuselage but also in a range extending from that position to the front of the inlet. Even after being transported to the location corresponding to, the feeding action by the inclined blades continues, so the crop will be gradually released outward in the radial direction, and there is little risk of clogging etc. Become.

It is a whole side view of a combine. It is a whole top view of a combine. It is a top view of an auger. It is a right view of a cutting process part. It is a right view of a cutting process part when a cutting blade exists in a high position. It is a top view which shows an auger drum. It is a notch top view of an auger. It is a partial vertical side view of a cutting process part. It is sectional drawing of an inclined blade | wing part. It is sectional drawing of a spiral blade. It is a vertical front view of a cutting process part. It is a partially exploded perspective view of a cutting process part. It is a top view of a cutting blade. It is a cross-sectional plan view of the right divider arrangement part. It is a vertical front view of the drive part of a cutting blade. It is a partial top view of a cutting blade. It is the XVII-XVII sectional view taken on the line of FIG. It is a top view which shows the attachment state of an impact-absorbing material. It is a front view which shows the attachment state of an impact-absorbing material.

Hereinafter, an embodiment of a normal combine as an example of a harvester according to the present invention will be described with reference to the drawings.
〔overall structure〕
FIG. 1 and FIG. 2 show a normal combine that harvests crops such as rice and wheat. This combine harvester conveys planted cereals as crops to be harvested to the front of a traveling machine equipped with a pair of left and right crawler type traveling devices 2 at the lower part of the machine frame 1 and conveys them backward. 3 are connected so as to be swingable up and down. Then, the traveling machine body handles the harvested cereal rice cake as a crop conveyed from the harvesting and conveying unit 3 on the machine body frame 1, and converts the threshing processed product obtained by the handling process into a grain and a discharge. The threshing device 4 for sorting, the grain tank 5 for storing the grains obtained by the threshing device 4, the grain discharging device 6 for discharging the grains stored in the grain tank 5 to the outside of the machine, the operator Is equipped with a driving unit 7 and the like for performing a driving operation. This combine is configured as a full-pile-feeding type in which the planted cereal culm is cut and harvested, and all the harvested cereal culm is put into the threshing device 4.

  The operation part 7 is located on the right side of the front part of the machine body, and the grain tank 5 is located behind the operation part 7. Further, the threshing device 4 and the grain tank 5 are arranged in the left-right direction with the threshing device 4 located on the left side and the grain tank 5 located on the right side. A driving engine 8 is provided below the operation unit 7.

  In this embodiment, when defining the front-rear direction of the aircraft, it is defined along the aircraft advancing direction in the working state, and when defining the left-right direction of the aircraft, the left-right direction is defined as viewed in the aircraft advancing direction. . That is, the direction indicated by the reference symbol (F) in FIGS. 1 and 2 is the front side of the aircraft, and the direction indicated by the reference symbol (B) in FIGS. The direction indicated by reference sign (L) in FIG. 2 is the left side of the aircraft, and the direction indicated by reference sign (R) in FIG. Therefore, the left-right direction of the body corresponds to the lateral direction of the body.

  The cutting and conveying unit 3 cuts the planted cereal rice cake to be harvested with the traveling of the vehicle body, and the harvested rice cake harvested by the harvesting processing unit 9 to the threshing device 4 on the rear side of the machine body. The hydraulic cylinder 11 for lifting and lowering the cutting frame is provided so as to be swingable up and down around the horizontal axis P1.

  The harvesting processing unit 9 is supported by a harvesting frame 12 as a frame that supports the entire harvesting processing unit 9, and a pair of left and right that weeds the planted cereal rice to be harvested and the planted rice cake to be non-reached Divider 13, rotary reel 14 for scraping the planted culm to be harvested backward, hair clipper-shaped cutting blade 15 for cutting and harvesting the planted side of the planted culm to be harvested, And an auger 16 which feeds the harvested cereal grains laterally to the middle in the left-right direction, gathers them together, and sends them back.

  As shown in FIG. 2, the left and right width (cutting width) of the cutting processing unit 9 is larger than the distance between the lateral outer ends of the left and right crawler travel devices 2, in other words, the width of the traveling machine body. The step allowance of the left and right crawler travel devices 2 formed on the cut marks of the planted crop by the processing unit 9 is ensured greatly in the left-right direction. This reduces the risk of trampling unharvested crops by the left and right crawler travel devices 2 during harvesting operations.

  As described above, the right and left width of the cutting unit 9 is larger than the lateral width of the traveling aircraft, but the operating unit 7 is located on the right side of the front of the aircraft and the feeder 10 is located on the left side of the front of the aircraft. The part 9 is connected to the feeder 10 in a state of being biased to one side (right side) in the body width direction with respect to the feeder 10.

  As shown in FIG. 8, the cutting frame 12 includes a frame support 17 configured by connecting a square pipe, an angle member having an L-shaped cross section, and the like, and a guide for receiving the cutting cereal rice cake below the auger 16. And a pair of side wall portions 20 and the like positioned at both side ends in the lateral direction of the body. The left and right dividers 13 are provided on the front side of the left and right side walls 20 of the cutting frame 12. As shown in FIG. 11, the portion of the back plate 19 to which the feeder 10 is connected is opened so that the inlet 21 of the feeder 10 communicates, and the harvested crop can be conveyed from the auger 16.

  As shown in FIGS. 2 and 8, a clipper-type cutting blade 15 is provided along the left and right side wall portions 20 along the front end of the bottom plate 18, and rotates around the horizontal axis over the left and right side wall portions 20. An auger 16 is installed freely.

[Rotating reel]
The rotating reel 14 will be described.
As shown in FIGS. 1 and 2, the rotary reel 14 is provided in a state of being supported by a pair of left and right support arms 22 extending forward from an upper part on the rear end side of the cutting frame 12. In other words, a reel frame 24 is provided at the left and right end portions of the drive shaft 23 rotatably supported at the distal end portions of the pair of support arms 22 so as to be integrally rotatable. Each of the pair of left and right reel frames 24 has a substantially hexagonal shape in a side view. A tine support member 25 is provided in a state of being laid over the pair of left and right reel frames 24 and being positioned one by one at the top of the six, and each tine support member 25 is provided along the longitudinal direction thereof. A plurality of tines 26 (scratching claws) are attached in a state where they are arranged side by side.

  The reel frame 24 is provided with a posture holding mechanism for holding the posture so that the tine 26 extends downward from the tine support member 25 regardless of the rotation of the rotary reel 14. . This posture holding mechanism has a well-known structure, and the configuration thereof will not be described in detail. However, when the rotary reel 14 rotates, the tine 26 rotates while holding the downward posture to move the planted cereals backward. It is configured so that it can be scraped.

  A hydraulic cylinder 27 is connected to each of the pair of support arms 22 and the side wall portion 20, and the pair of hydraulic cylinders 27 causes the pair of support arms 22 to move around the axis P <b> 2 on the rear base end side with respect to the cutting frame 12. Thus, the rotary reel 14 is supported to be movable up and down by swinging up and down.

[Mowing blade 15]
The cutting blade 15 will be described.
As shown in FIGS. 8 and 17, the cutting blade 15 includes an angle-shaped base 29 that is mounted and fixed back to back on a connecting frame 28 that extends to the front end of the bottom plate 18 over the width of the machine body, and a base 29, a receiving blade 30 attached to 29, a movable blade 31 supported slidably with respect to the receiving blade 30, a knife bar 32 for driving the movable blade 31, and a knife clip 33 for holding the movable blade 31. ing.

  The power from the engine 8 is transmitted through a drive mechanism as described later, and the long knife bar 32 over the entire cutting width is driven to reciprocate at a predetermined pitch. The knife bar 32 is connected and fixed to the knife bar 32. The movable blade 31 reciprocates and can cut and harvest the stock of the harvested cereal meal by cooperating with the receiving blade 30 in the fixed state.

  As shown in FIG. 13, the movable blade 31 serves as a member for sending the harvested cereal to the intermediate position in the lateral direction of the fuselage (the delivery location to the feeder 10), and the direction in which the movable body 31 moves relative to the delivery location to the feeder 10. A right lateral feed member 34 located on the right side as viewed and a left lateral feed member 35 located on the left side are provided.

  As shown in FIGS. 16 and 17, the lateral feed members 34, 35 on both the left and right sides are long in the lateral width direction of the machine body and have sawtooth-like lateral feed working portions 34 A, 35 A and connecting portions 34 B, 35 B on the upper side. It is composed of one plate-like body. The connecting portions 34B and 35B are connected to the knife bar 32 by bolts 110, and the both lateral feed members 34 and 35 are configured to reciprocate integrally with the knife bar 32 and the movable blade 31. When the connection of the bolt 110 to the knife bar is released, the both lateral feed members 34 and 35 can be removed from the cutting blade 15 as a whole.

  As shown in FIG. 13, the lateral feed operation portion 34 </ b> A in the right lateral feed member 34 has the sawtooth direction set so as to convey the harvested cereals toward the feeder 10, that is, in the left direction, and the left lateral feed member The direction of the saw-tooth is set so that the horizontal feed operation part 35A in 35 is conveyed toward the feeder 10 side, ie, the right direction. Therefore, these transverse feed members 34 and 35 are reciprocated at a predetermined pitch integrally with the movable blade 31 to feed the harvested cereal to the center side in the body width direction, that is, to the delivery point to the feeder 10. Can do.

  The lateral feed members 34, 35 on both the left and right sides are connected in an oblique posture that is located upward as the rear side is increased. The inclination angle with respect to the cutting blade 15 is set to be loose (about 10 degrees) so as not to obstruct the transportation of the harvested cereal. Moreover, it extends longer to the rear of the machine than the rear end position of the base 29, thereby enhancing the function of feeding the harvested cereal.

[Driving mechanism of cutting blade 15]
The drive mechanism of the cutting blade 15 will be described.
As shown in FIGS. 11, 12, 14, and 15, on the rear side of the back plate 19, the cutting transmission shaft 37 that extends along the width direction of the fuselage and the rotational power around the horizontal axis around the longitudinal axis. A power conversion mechanism 38 for converting the power into the power, a relay transmission shaft 39 along the front-rear direction rotated by the converted power, a swing arm 40 provided at the front end of the relay transmission shaft 39, and the swing A link 41 for interlockingly connecting the moving arm 40 and the knife bar 32 is provided.

  The power of the engine 8 is transmitted to the cutting transmission shaft 37 via a transmission mechanism (not shown), and the cutting transmission shaft 37 is rotationally driven around the horizontal axis. Since the power conversion mechanism 38 is a well-known configuration, a detailed configuration is not described, but the cutting transmission shaft 37 is configured to convert the rotational movement in one direction of the cutting transmission shaft 37 into the reciprocating rotational motion of the relay transmission shaft 39. 37 and the relay transmission shaft 39 are connected.

  The swing arm 40 is connected and fixed to the front end portion of the relay transmission shaft 39. The swing arm 40 is rotatably connected to one end of the link 41 via the first bearing member 42. The other end of the link 41 is connected to the movable blade 31 via the second bearing member 43. When the relay transmission shaft 39 reciprocates, the swing arm 40 swings left and right, and the movable blade 31 is driven back and forth in the left-right direction.

  As shown in FIGS. 12 and 14, a support portion 45 that protrudes outward from the right side wall portion 20 is provided, and the relay transmission shaft 39 passes through the insertion hole 46 formed in the support portion 45. The relay transmission shaft 39 is rotatably supported by a bearing 48 housed in a bearing holder 47 attached to the front side of the support portion 45.

  A cutting blade guard 49 for protecting the cutting blade 15 is provided on the outer side of the cutting blade 15 in the lateral direction of the machine body. The cutting blade guard 49 includes a band plate-like plate member 50 and a round bar member 51. The round bar member 51 is fixed to the rear side of the plate member 50 by welding or the like. The round bar member 51 is a laterally U-shaped member having a front side opened in a side view. On the front side of the cutting blade guard 49, the front end portion of the plate member 50 is connected to the side wall portion 20 with a bolt. The rear side of the cutting blade guard 49 is bolted to the side surface of the support 45 via a bracket 52 connected to the round bar member 51.

[Vibration Suppression Structure of Cutting Blade 15]
The cutting blade 15 is provided with an impact absorbing material Q that suppresses vibration by receiving and absorbing the impact at the end of the moving stroke in order to suppress vibration and noise associated with the movement of the movable blade 31. .

  As shown in FIGS. 18 and 19, on both sides in the longitudinal direction of the cutting blade 15, a columnar support base 55 is fixed to a mounting plate 54 fixed to the base 29, and a bolt is applied to the support base 55. The shock-absorbing material Q is fixed in a state where it is tightened. The shock absorbing material Q is made of, for example, shock absorbing gel or low-resilience urethane. The shock absorber Q is provided at a position where the end of the knife bar 32 collides when the knife bar 32 reaches the end of the stroke. The impact absorbing material Q can absorb the impact when the knife bar 32 (movable blade 31) stops moving at the stroke end.

[Changing the position of the cutting blade 15]
The cutting blade 15 can change the attachment position to a position higher than the normal position, for example, when a lodging crop is a cutting target.
When a fall crop is to be harvested, the base 29 of the cutting blade 15 is removed from the connection frame 28 and mounted at a high position. That is, as shown in FIG. 5, the support brackets 56 are attached to the left and right side wall portions 20, respectively, and the base 29 is attached across the left and right support brackets 56. The mounting surface of the support bracket 56 is formed in a posture in which the upper side is slightly inclined to the rear side with respect to the mounting surface 28 a of the connecting frame 28. By forming in this way, even if the height is changed, the grounding posture of the cutting blade 15 becomes substantially the same posture.

  As the cutting blade 15 is changed to a higher position, the driving relay transmission shaft 39, the swing arm 40 and the like need to be changed to a higher position on the upper side as well. As shown in FIG. 12, the rear end portion of the relay transmission shaft 39 is supported by the cutting transmission shaft 37 via the power conversion mechanism 38. The front side of the relay transmission shaft 39 is configured to swing up and down around the axis of the cutting transmission shaft 37 to drive the cutting blade 15 at a high position.

  As shown in FIG. 12, two insertion holes 46 are formed in the support portion 45 that supports the front side of the relay transmission shaft 39, with the positions thereof being different from each other in the vertical direction. When the cutting blade 15 is in the low position (normal position), the relay transmission shaft 39 is inserted through the lower insertion hole 46, and when the cutting blade 15 is in the high position (position for lodging crop), the relay The transmission shaft 39 is inserted through the higher insertion hole 46.

  As shown in FIG. 4, when the relay transmission shaft 39 is inserted through the lower insertion hole 46, a bearing holder 47 is attached to the front side of the support portion 45. The front side of the relay transmission shaft 39 is rotatably supported by a bearing 48 built in the bearing holder 47.

  As shown in FIG. 5, when the relay transmission shaft 39 is inserted through the higher insertion hole 46, the bearing holder 47 is attached to the front surface side of the support portion 45 via the cradle 58. The mounting surface on which the bearing holder 47 is mounted on the cradle 58 is formed in a posture in which the upper side is slightly inclined to the rear side with respect to the front surface of the support portion 45. By forming in this way, the attitude of the bearing 48 matches the attitude of the relay transmission shaft 39, and the front side of the relay transmission shaft 39 is rotatably supported by the bearing 48 built in the bearing holder 47. The

  Corresponding to the position change of the cutting blade 15, the position of the cutting blade guard 49 can be changed. That is, the bracket 52 is bolted to a different position of the support portion 45 by swinging the rear side with the bolt connection to the side wall 20 on the front side of the cutting blade guard 49 loosened. Can be fixed at a high position.

  When the cutting blade 15 is thus changed to a high position, the lower end portion of the rotary reel 14 can be lowered below the cutting blade 15 in a side view. By configuring in this way, for example, even when the planted culm is lying down in a soft field, the scraping function by the rotary reel 14 is effectively exerted on the lying cereal. Thus, the cutting operation can be performed with the cutting blade 15 while being scraped with the rotary reel 14.

[Ogre 16]
The auger 16 will be described.
As shown in FIGS. 2 and 8, the auger 16 has a pair of left and right spiral blades that exert a lateral feed function toward the front end of the feeder 10 as it rotates forward on the outer periphery of a large-diameter cylindrical drum 59. 60 is provided. Seven rod-like scraping bodies 61 are provided in the lateral width region facing the inlet 21 at the front end of the feeder 10 so as to be different from each other in the circumferential direction and the axial direction. In the middle of the right lateral feed area, there is provided one scraper 61 that moves out of the drum 59, and in the middle of the left lateral feed area, two scrapers 61 that retract from the drum 59 are provided. Is provided. A total of ten scrapers 61 are provided.

  As shown in FIG. 7, lid plates 62 and 63 are fixed inside the drum 59 in the vicinity of both left and right ends, and a pair of intermediate support plates 64 and 65 are fixed inside the drum 59 with a space therebetween. Has been. The rotation support shaft 66 is supported by the right cover plate 62 and the right intermediate support plate 64, the rotation support shaft 66 is connected to the right cover plate 62, and the rotation support shaft 66 is integrally connected to the drum 59. ing.

  A fixed support shaft 68 is connected and fixed to the left side wall portion 20 concentrically with the rotation support shaft 66. The fixed support shaft 68 is connected to the left side of the drum 59 via a bearing 69 and a bearing bracket 70. The lid plate 63 is rotatably fitted and supported.

  An eccentric support shaft 71 is provided in a state where the rotation is fixed to the fixed support shaft 68 by key connection. A scraper 61 is attached to the outer peripheral portion of the eccentric support shaft 71 so as to be rotatable around an axis P3 along the fixed support shaft 68. Each of the plurality of scrapers 61 is configured to be slidably guided through the drum 59 so as to be freely withdrawn and retracted. A pair of left and right eccentric support shafts 71 are provided, and the left and right eccentric support shafts 71 are connected to a left intermediate support plate 65 by a relay shaft 73 supported via a bearing bracket 70.

  In the auger 16, when the rotary support shaft 66 is driven to rotate and the drum 59 rotates counterclockwise in FIG. 8, each scraping body 61 follows and rotates around the axis of the eccentric support shaft 71. At this time, the distance between the eccentric support shaft 71 and the drum 59 changes depending on the rotation phase, and each scraping body 61 rotates while moving out of and out of the drum 59, and the bottom plate 18 and the back plate 19. The crop is scraped into the feeder 10 while avoiding the interference.

  As shown in FIG. 6, an opening 76a is formed in the drum 59 for assembling work and maintenance work of the scraper 61, and this opening 76a is closed by a removable cover 76b. The opening 76a includes four circular openings and one long hole-shaped opening. Of the four circular openings 76a, the third on the right side is for assembly and maintenance of a crank-shaped support portion around the relay shaft 72 that supports the pair of left and right eccentric support shafts 71. FIG. 6 shows a model in which one round of the drum 59 is developed so that the structure can be easily understood.

  In a region where the scraping body 61 scrapes into the inlet 21 of the feeder 10, a conveyance plate 74 having a triangular shape as viewed from the side is provided between the left and right spiral blades 60. The transport plate 74 is formed to have a lateral width that is substantially equal to the lateral width of the inlet 21. The transport plate 74 is configured to transport the harvested crop to the inlet 21 side.

  The auger 16 includes an inclined blade portion 75 provided in an inclined posture in which the free end portion is located on the lower side of the crop feeding direction with respect to the base end portion at a location close to the inlet 21 of the feeder 10 in the spiral blade 60. . As shown in FIG. 7, the inclined blade portion 75 is provided in a range from a position deviating from the inlet 21 of the feeder 10 in the right spiral blade 60 to the front side of the inlet 21 from the lateral width direction of the fuselage. Specifically, it is provided in a region wound about 180 degrees along the outer periphery of the drum 59 from the left end portion of the right spiral blade 60 toward the right side.

  In other areas excluding the inclined blade portion 75, as shown in FIG. 10, the spiral blade 60 is in a state having an angle of 90 degrees with respect to the outer peripheral surface of the drum 59, but as shown in FIG. The inclined blade portion 75 is joined to the outer peripheral surface of the drum 59 in an inwardly inclined state from 90 degrees toward the inlet 21 side of the feeder 10 by a predetermined angle α (for example, about 20 degrees).

  In other words, the conveying surface at a portion located near the inlet 21 in the inclined blade portion 75 is inclined so as to approach the inlet 21 as it is positioned on the outer side in the radial direction of the drum 59. As a result, in a region where the amount of the harvested cereal mash is increased, the chopped cereal is prevented from jumping out to the outside in the radial direction of the drum 59. As a result, the harvested crop is less likely to be wrapped around the auger 16, and the occurrence of clogging of the harvested crop in the auger 16 can be suitably suppressed. Of the right spiral blade 60, the inclined blade portion 75 and the spiral blade 60 in other regions are connected using a sheet metal material or the like.

[Transport guide]
The cutting frame 12 is provided with a conveyance guide 77 that is located on the inner surface of the cutting frame 12 and conveys and guides the harvested cereal grains (crop) positioned between the auger 16 and the cutting frame 12 to the feeder 10 side. The conveyance guide 77 is configured by a plate member provided across the bottom plate 18 and the back plate 19, and a plurality of conveyance guides 77 are provided at intervals in the body width direction.

  As shown in FIGS. 2 and 7, the cutting processing unit 9 is connected to the feeder 10 while being biased to the right side of the machine with respect to the feeder 10, and the cutting processing unit 9 is cantilevered on the right side of the machine than the feeder 10. They are connected in a protruding state. The conveyance guide 77 is provided at a position adjacent to the inlet 21 of the feeder 10 in a cantilever portion that protrudes in a cantilevered manner on the right side of the machine body from the feeder 10 in the cutting processing unit 9. Specifically, as shown in FIG. 7, the conveyance guide 77 is provided in a region W <b> 1 that extends from the central portion in the machine width direction of the cantilever portion of the cutting processing unit 9 to the inlet 21 of the feeder 10.

Next, the configuration of the transport guide 77 will be described.
As shown in FIGS. 8 and 12, the conveyance guide 77 includes three types of guide structures 78, 79, and 80 divided into three in the vertical direction in a state where the conveyance guide 77 is divided by the scrapers 81 on both the upper and lower sides. Yes.

  Although not shown in detail, the scrapers 81 on both the upper and lower sides exert a scraping action on the harvested crop that is laterally fed by the auger 16, and are provided on both the left and right sides of the inlet 21. Each scraper 81 is made of an L-shaped angle material, and is formed in a long shape in the lateral width direction.

  As shown in FIG. 8 and FIG. 12, the first guide component 78 located at the lowest stage is located at a corner where the bottom plate 18 and the back plate 19 are connected. In a state of covering a portion of the back plate 19 below the lower scraper 81 and a substantially triangular region formed by the outer edge of the auger 16, and in the front view of the body, the upper side is closer to the right side of the body. It is provided in a tilted attitude.

  The first guide component 78 has a shape obtained by bending a plate body into a substantially L shape, and includes a conveyance guide portion 78A that conveys and guides the harvested cereal meal in the above-described approximately triangular region, the bottom plate 18 and the back plate. 19 and an attachment portion 78B for attachment to the vehicle. The attachment portion 78B is connected to the bottom plate 18 and the back plate 19 by fastening bolts.

  The second guide structure 79 located in the middle in the vertical direction covers the region formed by the portion sandwiched between the upper and lower scrapers 81 and the outer edge of the auger 16 in the rear plate 19 in a side view of the body. In addition, when viewed from the front of the machine body, the upper side of the first guide component 78 is provided in an inclined posture that is positioned on the right side of the machine body in an upward direction.

  The second guide structure 79 has a shape obtained by bending the plate body into a substantially L shape, and includes a conveyance guide portion 79A that conveys and guides the harvested cereal meal in the above-described region, and an attachment portion for attachment to the back plate 19 79B. The attachment portion 79B is connected to the back plate 19 by fastening bolts.

  The third guide structure 80 located in the upper stage in the vertical direction covers the region formed by the location above the scraper 81 above the upper scraper 81 and the outer edge of the auger 16 in the side view of the body. In addition, when viewed from the front of the machine body, the upper side of the second guide structure 79 is provided in an inclined posture that is positioned on the right side of the machine body in the upper side.

  The third guide component 80 has a shape obtained by bending the plate body into a substantially L shape, and includes a conveyance guide portion 80A that conveys and guides the harvested cereal meal in the above-described region, and an attachment portion for attachment to the back plate 19 80B. The attachment portion 80B is connected to the back plate 19 by fastening bolts.

  A set of transport guides 77 is configured by combining the first guide component 78, the second guide component 79, and the third guide component 80. As shown in FIGS. 7 and 12, the three sets of transport guides 77 are spaced in the width direction of the body in the region extending from the center of the body width direction of the cantilever portion of the cutting processing unit 9 to the inlet 21 of the feeder 10. It has been opened.

  By providing such a conveyance guide 77, it is possible to prevent the harvested cereal from being wound around the auger 16 at a location adjacent to the entrance of the feeder 10 where the amount of the harvested cereal is increased, and to feed it well. it can.

〔feeder〕
As shown in FIG. 1, the feeder 10 includes a pair of endless left and right ends within a rectangular tube-shaped feed case 82 that extends across a driving wheel 83 located on the rear upper side and a driven wheel 84 located on the lower front. A rotating chain 85 is wound around and a locking conveyance body (not shown) is installed at predetermined pitches across a pair of left and right endless rotating chains 85. An inlet 21 communicating with the cutting processing unit 9 is formed at the front end of the feed case 82. A rear end portion of the feed case 82 is connected to the threshing device 4 in communication. Then, the endless rotating chain 85 is rotated to convey the harvested crop (cutted culm) delivered from the cutting processing unit 9 toward the threshing device 4.

[Another embodiment]
(1) In the above embodiment, the conveyance guide 77 is provided on the right side of the machine body with respect to the feeder 10 in the cutting processing unit 9. However, the conveyance guide 77 is also provided on the left side of the machine body with respect to the feeder 10 in the cutting processing unit 9. It is good also as a structure which provides.

(2) In the above-described embodiment, the conveyance guide is constituted by a plate member and is provided with three at intervals in the lateral width direction of the machine body. The structure provided or the structure provided with four or more may be sufficient.

(3) In the above embodiment, the conveyance guide is divided into three in the vertical direction. However, only the guide located at the lowermost portion may be formed.

(4) In the above embodiment, the inclined blade portion is provided in the range extending from the feeder inlet to the front of the inlet from the position deviated from the feeder inlet in the horizontal direction of the fuselage. It is good also as a structure provided only in the position which remove | deviated from the entrance of the machine body width direction, and it is good also as a structure provided with an inclined blade | wing part over the full width of not only a part but an auger.

(5) In the above embodiment, what is applied to a general combine harvester that harvests rice, wheat, etc. has been shown, but the present invention can be applied to other types of harvesters such as corn harvesters.

  The present invention can be applied to a harvester such as an ordinary combine harvester or a corn harvester.

DESCRIPTION OF SYMBOLS 9 Cutting processing part 10 Feeder 12 Cutting frame 15 Cutting blade 16 Auger 18 Bottom plate 19 Back plate 21 Entrance 59 Drum 60 Spiral blade 75 Inclined blade portion 77 Conveyance guide

Claims (6)

After cutting the crop, it is provided with a cutting processing unit that feeds and merges toward the intermediate part in the width direction of the aircraft, and a feeder that conveys the crop that is laterally fed by the cutting processing unit toward the rear of the aircraft,
The cutting processing unit includes a cutting blade for cutting a crop, an auger with spiral blades for laterally feeding the harvested crop, a bottom plate positioned below the auger, and a back in a vertical posture positioned on the rear side of the auger body. A harvesting machine comprising: a cutting frame having a face plate; and a conveyance guide that is located on an inner surface of the cutting frame and that guides a crop positioned between the auger and the cutting frame to the feeder side.   The harvesting machine according to claim 1, wherein the transport guide is configured by a plate member provided across the bottom plate and the back plate, and a plurality of the transport guides are provided at intervals in the lateral width direction of the machine body. The cutting processing unit is connected to the feeder in a state of being biased to one side in the lateral direction of the machine body with respect to the feeder,
The said conveyance guide is provided in the location which adjoins the inlet_port | entrance of the said feeder among the cantilever parts which protrude in a cantilever shape to the one body width direction direction rather than the said feeder in the said cutting part. Harvester as described in.   The harvesting machine according to claim 3, wherein the conveyance guide is provided in a region extending from a central part of the cantilever part in the body width direction of the cutting processing unit to an inlet of the feeder. The auger includes a cylindrical drum and a spiral blade that is formed to rise radially outward from the outer periphery of the drum and spirally provided in the drum axial direction.
The inclined blade part provided in the inclination attitude | position in which the free end part is located in the crop feed direction lower side rather than a base end part in the location close | similar to the entrance of the said feeder in the said spiral blade. The harvester according to any one of claims.   The harvesting machine according to claim 5, wherein the inclined blade portion is provided in a range extending from a position deviating from an inlet of the feeder in a lateral direction of the machine body to a front side of the inlet.

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