JP2018068199A - Leek harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly discharge soil produced by ridge breaking in a configuration with a ridge breaking device for breaking a shoulder part of the ridge when digging up the leek, and thereby prevent stagnation/deposition of the soil in the ridge breaking device.SOLUTION: A leek harvester 1 has a self-propelled traveling machine body 4 and digs up and harvests the leek 2 from a ridge 3 while advancing the machine body. The leek harvester includes: a digging-up unit 25 for digging up the leek 2 from the ridge 3; a conveyance unit 26 for conveying the leek being dug up by the digging-up unit 25 to the rear; a ridge breaking device 80 provided at both the left and right sides in front of the digging-up unit 25, and having a ridge breaking rotor 81 for acting to the ridge 3 while digging up the leek 2 by the digging-up unit 25 to break the shoulder part on both sides of the ridge 3; and a discharging soil guide unit 160 provided in the left and right outside of the machine body to the ridge breaking rotor 81, and guiding the soil produced by the ridge breaking of the ridge breaking rotor 81 discharged from the ridge breaking device 80 to the left and right outside of the machine body.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a leek harvester that digs up and harvests a green onion cultivated in a field, and more particularly, to a leek harvester equipped with a crushing device that breaks down the shoulder of a leek when digging up a leek.

  Traditionally, as a leek harvester that digs and harvests green onions (white leek, deep green onion, etc.) cultivated in the field, it is a self-propelled traveling machine body with a digging part that digs green onions from a cocoon, and a digging part There exists a thing of the structure provided with the conveyance part which pinches and conveys the digging up leek back. The leek harvesting machine having such a configuration digs up and digs up the leek by advancing the machine body and entering the blade part provided at the tip of the digging part below the rhizome part of the leek planted in the reed. Digging and transporting the onion leaves.

  When the blade at the tip of the digging part enters the soil and digs the green onion, depending on the soil quality and soil condition of the field, the cutting edge may not sufficiently enter the root of the green onion due to the resistance of the soil. It may become. In such a case, the onion may be damaged or damaged due to excessive digging of the onion.

  Therefore, some leek harvesting machines are provided with a crushing device on both the left and right sides in front of the digging portion to break down the shoulder portion (side portion) of the ridge when digging the leek (see, for example, Patent Document 1). According to the crushing device, the left and right shoulders of the crust are collapsed in advance when excavating the green onion by the excavating part, so the resistance of the earth to the blade part at the tip of the excavating part entering the soil is reduced. The blade portion can be sufficiently advanced with respect to the rhizome portion of the leek, and a good excavation work can be performed.

  In Patent Document 1, as a crushing device, a crushing rotor that has a plurality of claws and is driven to rotate about the left-right direction as a rotation axis direction, and a non-operating side (left-right outside), rear side, and upper side of the crushing rotor The thing of the structure provided with the rotor cover which covers is disclosed. The collapsing rotor rotates so as to move the lower side forward, that is, up-cut. Moreover, according to the rotor cover, the scattering of the soil caused by the collapse by the collapsed rotor is prevented.

JP 2014-195409 A

  The soil generated by the crushing by the crushing rotor that rotates so as to cut up is discharged, for example, from the front of the rotor cover, which is a non-covered portion by the rotor cover, and from the lower side of the rotor cover at the left and right outer sides. In such a soil discharge mode, for example, the soil discharged to the front of the rotor cover flows relatively rearward as the machine body of the leek harvester advances, and the soil is discharged to the outside of the rotor cover. In some cases, soil removal from the rotor cover may not be performed satisfactorily. In addition, if the height of the dredging is low, the height of the crushing device will be lowered accordingly, so the amount of soil discharged from below the rotor cover is reduced, which also reduces the soil removal from the rotor cover. Cause it.

  If the soil removal from the rotor cover is not performed well, the soil stagnates and accumulates inside and outside the rotor cover, that is, around the collapsed rotor. The stagnation and accumulation of soil in this crushing device causes the soil to adhere to the green onions. When the amount of soil adhering to the leeks increases, the soil is excessively brought into the transport section, which may cause malfunction such as poor transport of leeks. Moreover, when soil enters the branch part of the leaf part of the green onion, post-treatment such as preparation after harvesting the green onion becomes difficult.

  The present invention has been made in view of the above problems, and in a configuration including a crushing device that crushes the shoulder portion of the cocoon when digging up the green onion, the soil generated by the crushing is smoothly discharged. An object of the present invention is to provide a leek harvesting machine that can prevent soil stagnation and accumulation in a crushing apparatus.

  A leek harvesting machine according to the present invention has a self-propelled traveling machine body, a leek harvesting machine that digs and harvests green onions from a hoe while advancing the machine body, the digging part that digs up green onions from the firewood, A conveying part that conveys the leek digged up by the digging part to the rear, and a shoulder part on both sides of the ridge that is provided on both the left and right sides in front of the digging part and acts on the ridge when digging the leek by the digging part A crushing device having a crushing rotor and crushing rotor, and a soil which is provided on a laterally outer side of the airframe with respect to the crumbling rotor and which is generated by the crushing by the crushing rotor and discharged from the crushing device A discharge soil guide for guiding outward.

  Further, in the leek harvester according to another aspect of the present invention, in the leek harvester, the discharged soil guide section has a guide surface for guiding the soil discharged from the crushing device to the left and right outer sides of the machine body. And the flow of the soil accompanying the advance of the aircraft is rectified.

  In the leek harvester according to another aspect of the present invention, in the leek harvester, a drive mechanism for transmitting a driving force to the crushing rotor is housed on the left and right outer sides of the machine body with respect to the crushing rotor. The discharge soil guide portion is provided in front of the drive case.

  Further, the leek harvesting machine according to another aspect of the present invention is the leek harvesting machine, wherein the crushing device includes at least a part on each of the non-acting side, the rear side, and the upper side of the crushing rotor with respect to the ridge. It has a rotor cover to cover.

  In the leek harvester according to another aspect of the present invention, in the leek harvester, the rotor cover includes a base cover element that forms a base of the rotor cover and a circuit that is rotatably connected to the base cover element. A moving cover element, and the rotation of the rotating cover element relative to the base cover element changes the size of the soil discharge path from the crushing device.

  In the leek harvesting machine according to another aspect of the present invention, in the leek harvesting machine, the traveling machine body includes a pair of left and right crawler portions, and each crawler portion is positioned in a groove next to the left and right sides. The crawler is positioned between the crawlers and travels, and is provided in front of the crawlers, and is inclined in a direction substantially perpendicular to the horizontal plane and in the front-rear and rear-out directions in the left-right direction of the fuselage. Exhaust soil that has an inclined soil removal surface and eliminates excess soil in front of the other crawler part according to the depth of the groove where the one crawler part is located as the aircraft advances. The section is further provided.

  Moreover, the leek harvesting machine which concerns on the other aspect of this invention is the said leek harvesting machine, The said soil removal part is comprised so that adjustment of the relative height position with respect to the said crawler part is possible.

  Moreover, in the leek harvester according to another aspect of the present invention, in the leek harvester, the soil removal unit is configured such that an inclination angle of the soil removal surface with respect to the front-rear direction of the body in a plan view can be adjusted. Is.

  According to the present invention, in a configuration provided with a crushing device that crushes the shoulder portion of a potato when digging up a green onion, the soil generated by the crushing can be smoothly discharged, and the stagnation and accumulation of soil in the crushing device Can be prevented.

It is a front perspective view of the leek harvesting machine concerning one embodiment of the present invention. It is a left view of the leek harvester which concerns on one Embodiment of this invention. It is a right view of the leek harvester which concerns on one Embodiment of this invention. It is a top view of the leek harvesting machine concerning one embodiment of the present invention. It is a left side sectional view of a leek harvester according to an embodiment of the present invention. It is a disassembled side view of the leek harvester which concerns on one Embodiment of this invention. It is a perspective view which shows the crushing apparatus which concerns on one Embodiment of this invention. It is a front view which shows the crushing apparatus which concerns on one Embodiment of this invention. It is a side view which shows the crushing apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the structure of the crushing apparatus which concerns on one Embodiment of this invention, and its vicinity. It is a top view which shows the structure of the crushing apparatus which concerns on one Embodiment of this invention, and its vicinity. It is a figure which shows the power transmission structure in the leek harvester which concerns on one Embodiment of this invention. It is a back perspective view showing the crushing device concerning one embodiment of the present invention, and the composition of the neighborhood. It is a perspective view which shows the structure of the rotor cover which concerns on one Embodiment of this invention. It is an inner side view which shows the structure of the rotor cover which concerns on one Embodiment of this invention. It is an outer side view which shows the structure of the rotor cover which concerns on one Embodiment of this invention. It is explanatory drawing about an example of the procedure of the conventional general leek harvesting operation | work by a leek harvesting machine. It is a top view which shows the structure of the earth removal part which concerns on one Embodiment of this invention. It is a side view which shows the structure of the earth removal part which concerns on one Embodiment of this invention. It is a perspective view which shows the structure of the earth removal part which concerns on one Embodiment of this invention. It is explanatory drawing of the effect by the discharge soil guide part which concerns on one Embodiment of this invention. It is explanatory drawing of the effect by the soil discharging part which concerns on one Embodiment of this invention.

  The present invention relates to a leek harvesting machine equipped with a crushing device that breaks the shoulders of a leek when digging up a leek, and the soil discharged from the crushing device to the left and right outer sides of the fuselage with respect to the crushing rotor of the crushing device. By providing a discharge soil guide section as a soil guide structure that guides the aircraft to the left and right outside of the aircraft, it is possible to smoothly discharge the soil caused by the collapse, and to prevent stagnation and accumulation of soil in the collapse device Is. Embodiments of the present invention will be described below.

  As shown in FIG. 1 to FIG. 5, the leek harvesting machine 1 according to the present embodiment harvests the leek 2 cultivated in the field from the ridge 3. The leek harvesting machine 1 has a self-propelled traveling machine body 4 and digs up the leek 2 from the ridge 3 and harvests it while moving the machine body forward. The leek harvesting machine 1 includes a harvesting unit 5 for harvesting the leek 2 on the traveling machine body 4. In the present embodiment, the leek 2 to be harvested by the leek harvesting machine 1 is a long leek such as a white leek or a deep root leek, and has a rhizome portion 2a and a leaf portion 2b.

  The traveling machine body 4 includes a traveling unit 6 configured as a crawler traveling device having a pair of left and right crawler units 7 and 7. The crawler unit 7 includes a driving wheel 7a, a driven wheel 7b, a rolling wheel 7c, and a crawler belt 7d wound around these wheels. The crawler unit 7 is driven by an engine 9 provided in the leek harvesting machine 1. The traveling machine body 4 includes a machine body frame body 8 that is configured as a three-dimensional frame between the left and right crawler portions 7 and 7. The machine body frame 8 is constructed between the left and right crawler portions 7 and 7.

  The engine 9 is mounted on the right rear portion of the machine body frame 8 and at a position above the right crawler portion 7. A transmission 10 that receives input from the engine 9 is provided at a position between the left and right crawler portions 7 below the machine body frame 8 (see FIG. 5).

  On the upper right side of the machine body frame 8, there is provided an operation unit 11 for performing the steering / transmission operation of the left and right crawler units 7, 7 and the operation of each working unit of the harvesting unit 5. The operation unit 11 includes a main transmission lever 12, an auxiliary transmission lever 13, a working unit up / down lever 14, a main clutch lever 15 for operating a traveling clutch / working clutch, an engine stop switch 16, a left side clutch lever 17, a right side clutch lever. 18 and various operating tools such as an accelerator lever 19 are provided. Further, on the rear side of the operation unit 11, a handle 20 having a substantially “U” shape in a plan view is provided with the front side attached. The accelerator lever 19 is provided on the handle 20.

  A substantially horizontal plate-like boarding step 22 is provided at the rear end of the machine body frame 8 as a boarding section on which the operator A1 boardes. The boarding step 22 is provided at a position rearward of each working unit of the harvesting unit 5 in a manner projecting rearward. The height position of the boarding step 22 is set to a height position that does not interfere with the rod 3 in the state where the leek 2 adheres soil after the leek 2 is dug up.

  The boarding step 22 includes a fixed-side step portion 22 a that constitutes the front half of the boarding step 22 and a movable-side step portion 22 b that constitutes the latter half of the boarding step 22. The fixed-side step portion 22a is fixed to the airframe frame frame 8 via a stay 22c provided at the lower rear end of the airframe frame body 8 so as to protrude horizontally toward the rear. Is provided. The movable side step portion 22b is connected to the fixed side step portion 22a so as to be rotatable about the left-right direction as a rotation axis direction by a pivot connecting portion 22d provided at the rear end portion of the fixed side step portion 22a. . The movable side step portion 22b has a rotation position that is substantially horizontal so as to be continuous with the fixed side step portion 22a as a rotation position when using the step 22 for boarding, and stands up from the rotation position. It is provided so that it can be rotated between the rotation positions. The rotation position where the movable side step portion 22b is standing is a rotation position when the leek harvester 1 is not used, such as when the leek harvester 1 is moving.

  The leek harvesting machine 1 includes a digging unit 25, a conveying unit 26, a scraping unit 27, a posture changing / aligning unit 28, and a collecting unit 29 in the harvesting unit 5.

  The digging portion 25 is a working portion for digging the green onion 2 from the ridge 3. The digging part 25 is provided in the left and right center part of the front lower part of the airframe. The digging portion 25 includes a rectangular frame-shaped support frame 31, a digging conveyor 32 supported by the support frame 31, and a digging blade 33 that constitutes a blade portion at the tip of the digging portion 25.

  The support frame 31 is provided so as to have a rectangular shape with the front-rear direction being the longitudinal direction in plan view. The support frame body 31 has a base end portion (rear end portion) supported by the pivot shaft 34 with respect to the body frame frame body 8. The pivot 34 supports the support frame 31 so as to be rotatable with respect to the body frame 8 with the left-right direction as the axial direction. Both ends of the pivot 34 are supported by pivot bearings 34 a provided on the body frame frame 8. That is, the support frame 31 is supported by the body frame frame 8 through the pivot bearing 34 a that receives the end of the pivot 34 by the pivot 34 provided at the base end thereof.

  The excavating conveyor 32 is a so-called bar conveyor in which a plurality of bars are laid in the left-right direction, and is provided in a slanted shape that is rearwardly raised (front low, high rear) while being supported by the front portion of the support frame 31. ing. The digging blade 33 is attached to the digging conveyor 32 on the starting end side (front end side) of the digging conveyor 32 and is provided so as to protrude forward.

  The digging portion 25 is provided so as to be capable of moving up and down with respect to the machine body frame 8 with the support portion by the pivot 34 as a rotation center. That is, the digging portion 25 moves up and down the front side by rotating around the pivot 34 that supports the rear end portion thereof with respect to the body frame frame 8. The turning operation of the digging portion 25 is performed by an expansion / contraction operation of an elevating cylinder 35 (see FIG. 5) provided with the approximately front-rear direction as an expansion / contraction direction.

  The base end side (cylinder side) of the elevating cylinder 35 is supported by a cylinder stay 36 provided in the body frame frame 8. The tip end side (rod side) of the lifting cylinder 35 is connected to a lifting arm 37 provided on the support frame 31. The elevating arm 37 is provided in a state of being supported on a pivot 34 and a support shaft 38 provided in parallel to the pivot 34 in front of the pivot 34. The support shaft 38 is installed between the left and right frame portions 31 a constituting the support frame 31. The raising / lowering operation of the digging portion 25 is performed by operating the working portion up / down lever 14.

  The transport unit 26 is a working unit for transporting the leek 2 digged up by the digging unit 25 backward. The conveyance unit 26 is provided in an upwardly inclined shape along the inclination of the digging conveyor 32 of the digging unit 25 immediately above the digging unit 25. The transport unit 26 is configured to transport the leek 2 in the standing posture dug up by the digging unit 25 toward the rear upper side in a state where the midway part is sandwiched from the left and right sides.

  The transport unit 26 includes a pair of left and right belt transport mechanism units 41 and 41 provided along a rear-upward inclined plane with the transport direction as a rear-upward tilt direction. Each belt transport mechanism 41 includes a drive pulley 42 provided at the rear end thereof, a driven pulley 43 provided at the front end of the belt transport mechanism 41, and an endless transport belt wound around these pulleys. 44. The driving pulley 42 and the driven pulley 43 have a direction of rotation axis that is perpendicular to the inclination of the conveyor belt 44 in a side view of the body of the leek harvesting machine 1.

  The left and right belt conveyance mechanisms 41 and 41 make the respective conveyance belts 44 face each other, and rotate the conveyance belt 44 in a direction in which the opposed sides move backward. In the left and right transport belts 44, the side facing the counterpart transport belt 44 is the forward path portion that moves to the rear side, and the forward path portions are in surface contact with each other in a face-to-face state. The left and right transport belts 44 transport the green onion 2 rearward and upward in a state where the leaf portion 2b of the green onion 2 is sandwiched between the contact portions. A plurality of tension rollers are provided on the inner peripheral side of the conveyor belt 44.

  The scraping unit 27 is a working unit for scraping off a lump attached to the rhizome portion 2a of the green onion 2 transported by the transport unit 26. The scraping portion 27 has a soil removal rotating body 45 that acts on the rhizome portion 2 a of the green onion 2. The earth dropping rotator 45 is a substantially cylindrical rotator whose left-right direction is the rotation axis direction, and is located above the support frame 31 of the digging portion 25 and below the rear end portion of the transport portion 26. Is provided.

  The rotation shaft 46 of the earth dropping rotator 45 protrudes rightward from the earth dropping rotator 45 and passes through a shaft case (not shown) and protrudes into a chain case 48 provided on the right side of the shaft case. Yes. The chain case 48 houses the chain transmission mechanism 48a (see FIG. 12), and extends rearward and upward from a connecting portion of the shaft case of the rotating shaft 46.

  On the outer peripheral surface portion of the earth dropping rotator 45, a large number of protrusions 45a are radially spaced in the axial direction and circumferential direction of the earth dropping rotator 45 so that they protrude radially in the axial direction of the earth dropping rotator 45. Are provided apart from each other. The protruding portion 45 a is provided in such a manner that both end portions of a linear member bent into a substantially “V” shape are embedded in the outer peripheral surface portion of the earth dropping rotary body 45. The protrusions 45a are provided in two sizes, large and small, depending on the position of the rhizome 2a of the leek 2 conveyed by the conveyance unit 26, and the like.

  The direction of causing the protrusion 45a to collide with the soil lump attached to the rhizome portion 2a of the green onion 2 is the direction following the direction of conveyance of the green onion 2 by the conveyance unit 26. That is, the earth removal rotary body 45 that is provided below the transport unit 26 and that acts on the rhizome portion 2 a at the lower end of the green onion 2 that is transported rearward by the transport unit 26 is a clock when viewed from the left side of the leek harvester 1. It is configured to rotate in the direction. In addition, the rotation speed of the earth dropping rotator 45 is set sufficiently higher than the conveyance speed of the conveyance unit 26. For example, the rotation speed (circumferential speed) of the earth dropping rotator 45 is 1 [m / s], and the transport speed (circumferential speed) of the transport unit 26 is 0.05 [m / s].

  According to the scraping unit 27 having such a configuration, most of the soil mass adhering to the rhizome portion 2a of the green onion 2 that the digging conveyor 32 and the transport unit 26 have transported in cooperation with each other is a soil removal rotating body. It is scraped off by a large number of protrusions 45a protruding from the peripheral wall 45. Here, the earth dropping rotator 45 rotates so that a large number of protrusions 45a continuously collide with the earth lump adhering to the rhizome 2a, and the earth lump adhering to the rhizome 2a is allowed. Make it as small as possible.

  The posture changing / aligning unit 28 is provided at a position immediately after the conveying unit 26. The posture changing / aligning unit 28 inherits the green onions 2 conveyed in the standing posture by the conveying unit 26 from the terminal end of the conveying unit 26, and conveys the intermediate part of the inherited green onions 2 while sandwiching the intermediate green. The posture change / alignment unit 28 changes the posture of the sandwiched green onion 2 from a standing posture to a tilted posture inclined forward and outward, and aligns the green onion 2 whose posture has been changed along the transport direction while aligning the right and left sides. It is conveyed toward the rear upper side (in the present embodiment, the rear left upper side).

  The posture changing / aligning unit 28 includes a pair of left and right belt transfer mechanism units 51, 51 extending obliquely left rearward and upward from the rear end portion of the conveyance unit 26 with the conveyance direction inclined leftward and rearward. Each belt transfer mechanism 51 includes a drive pulley 52 provided at a front end thereof, a driven pulley 53 provided at a rear end of the belt transfer mechanism 51, and an endless conveyance wound around these pulleys. Belt 54.

  The belt transfer mechanism 51 is formed in a twisted shape so as to gradually face the left outer side from the front end portion to the rear end portion. Specifically, the front drive pulley 52 has a rotational axis direction that is substantially perpendicular to the inclination of the conveyor belt 54 in the side view of the body of the leek harvester 1, and the rear driven pulley 53 has the rotational axis direction thereof. The direction in which the drive pulley 52 is tilted forward and to the left with respect to the rotational axis direction of the drive pulley 52. The tilt angle of the driven pulley 53 in the front view of the leek harvester 1 is, for example, about 45 °.

  The left and right belt transfer mechanism portions 51 and 51 make the respective conveyance belts 54 face each other, and rotate the conveyance belt 54 in a direction in which the opposite sides move backward. In the left and right transport belts 54, the side facing the counterpart transport belt 54 is the forward path portion that moves to the rear side, and the forward path portions are in surface contact with each other in a face-to-face state. Due to the twisted configuration of the belt transfer mechanism 51, the contact portion between the forward path portions of the transport belt 54 extends in a twisted shape so that the clamping surface is gradually tilted in the clockwise direction from the front side to the rear side. ing. The left and right conveying belts 54 convey the slant 2 leftward and obliquely upward while tilting the leek 2 to the left by the twisted configuration of the belt transfer mechanism 51 with the leaf portion 2b of the leek 2 sandwiched between the contact portions. . A plurality of tension rollers are provided on the inner peripheral side of the conveyor belt 54.

  In the posture change / alignment unit 28, the belt transfer mechanism 51 is extended to correspond to the leaf 2b side and the rhizome 2a side of the green onion 2 sandwiched by the left and right belt transfer mechanisms 51, 51, respectively. A leaf portion side guide body 56 and a rhizome portion side guide body 57 are provided along the direction. By these guide bodies, the green onion 2 is slidably guided while the leaf 2b side and the rhizome 2a side of the green onion 2 are supported from below.

  The leaf portion side guide body 56 and the rhizome portion side guide body 57 are each composed of a bar-like member that is bent or curved so as to form a predetermined shape. The leaf portion side guide body 56 and the rhizome portion side guide body 57 are respectively extended from the position near the start end of the belt transfer mechanism 51 to the position behind the end portion. The rear end portions of the leaf portion side guide body 56 and the rhizome portion side guide body 57 respectively extend so as to face the rear lower side, and the collection unit 29 is disposed below the rear end portion of each guide body. . As a result, the green onion 2 conveyed by the left and right belt transfer mechanism portions 51, 51 is guided by the leaf portion side guide body 56 and the rhizome portion side guide body 57, and is dropped onto the collecting portion 29 without being bent. Collected.

  The leaf portion side guide body 56 is provided in a state of being supported by the upper support stay 58. The upper support stay 58 protrudes upward from the middle part of the support frame 59 of the left belt transfer mechanism 51. The support frame 59 extends along the longitudinal direction of the left belt transfer mechanism 51 and supports the driven pulley 53. Further, the rhizome part guide body 57 is provided in a state of being supported by the lower support stay 60.

  By changing the posture from the standing posture to the leaning posture (forward leaning posture) by the posture changing / aligning unit 28 as described above, the green onions 2 aligned in the carrying direction and conveyed to the left diagonally rear upward are sequentially Collected and stored in the collecting unit 29.

  The collection unit 29 is provided at a position below the posture change / alignment unit 28. The collection unit 29 includes a collection base 61 having a substantially rectangular outer shape for sequentially collecting the leek 2 conveyed by the posture change / alignment unit 28. The collecting unit 29 positions the front end edge of the collecting table 61 below the terminal end of the posture changing / aligning unit 28, receives the leek 2 that has fallen from the terminal end of the posture changing / aligning unit 28, and collects the green onion 2.・ Store.

  The collection stand 61 is attached to the rear side of the body frame frame 8 by a support arm 62. The support arm 62 is configured by a pipe-like member bent into a predetermined shape, and includes a vertical support portion 62a extending in the vertical direction and a horizontal support portion 62b extending rearward in the substantially horizontal direction. Have. On the lateral support part 62 b of the support arm 62, the collection base 61 that constitutes the mounting base part of the leek 2 is supported by the collection part 29.

  The vertical support part 62 a of the support arm 62 is inserted from above into a cylindrical support cylinder part 63 provided at the rear end part of the body frame frame 8. The support cylinder part 63 makes the vertical direction the cylinder axis direction, and supports the vertical support part 62a in a rotatable manner. With such a configuration, the collection platform 61 is provided so as to be rotatable about the cylinder axis direction of the support cylinder portion 63 along the vertical direction.

  Moreover, the horizontal support part 62b of the support arm 62 supports the collection stand 61 so that rotation is possible. That is, the collection base 61 is rotatably supported by the lateral support portion 62b with the central axis of the lateral support portion 62b, which is a pipe-shaped portion extending substantially in the front-rear direction, as a rotation axis. The lateral support part 62 b is located below the right edge part of the collection table 61. That is, the collection base 61 is supported in such a manner that most of the collection base 61 protrudes leftward from the lateral support portion 62b.

  The collection unit 29 is located on the left rear side of the machine body frame frame 8 as shown in each drawing and is not used by rotation of the support arm 62 around the axis of the vertical support unit 62a. In some cases, the storage state is located immediately after the machine body frame 8. In addition, the collection unit 29 causes the collection table 61 to be in a recumbent state as shown in each figure by rotation of the collection table 61 around the axis of the horizontal support unit 62b of the support arm 62, and when not in use. In FIG. 3, the collection stand 61 is in a suspended state. Accordingly, the litter harvester 1 can be made compact by rotating the movable side step portion 22b of the boarding step 22 to the upright state while keeping the collection stand 61 in the suspended state while keeping the collecting portion 29 in the retracted state. Can be stored.

  The collection unit 29 is provided on the left side of the boarding step 22, while the operation unit 11 is provided on the right side of the boarding step 22. With such a configuration, the harvested green onions 2 are piled up and collected on the collecting unit 29 in a lying posture on the left side of the worker A1 who is riding on the boarding step 22 and operating the operation unit 11. The operability of the operation unit 11 and the collection workability of the leek 2 are both compatible.

  In the leek harvesting machine 1, a pair of left and right gauge wheels 71, 71 are provided in front of the harvesting unit 5. The left and right gauge wheels 71, 71 are grounding wheels that determine the height of the front end of the harvesting unit 5 with respect to the ground, and cause the traveling machine body 4 to travel along the kite 3 while in contact with the left and right sides of the kite 3.

  The gauge wheels 71, 71 are supported by a gauge wheel support machine frame 73 that is provided in front of the machine body frame frame 8 and is attached to a conveyance unit support frame 72 that supports the conveyance unit 26. The gauge wheel support machine frame 73 includes a front guide-portion rear guide frame portion 74, left and right support arm portions 75, 75, a front view portal-like front guide frame portion 76, and front end portions of the support arm portions 75. And a gauge wheel support arm 77 extending from the center.

  The rear guide frame portion 74 is constituted by a pipe-like member, and both end portions thereof are supported and fixed to a mounting plate 72b provided at the front end portion of the transport portion support frame portion 72, and the front end portion of the transport portion 26 is left and right. It is provided so as to straddle. The support arm portion 75 is a strip-like portion that extends horizontally from the upper and lower middle portions of the left and right frame portions of the rear guide frame portion 74 toward the front. The front guide frame portion 76 is constituted by a pipe-like member, and both end portions thereof are supported and fixed to the front and rear middle portions of the left and right support arm portions 75 so as to substantially overlap the rear guide frame portion 74 in a front view. It is constructed between the supporting arm portions 75.

  The gauge wheel support arm portion 77 is a substantially bar-like portion provided in an inclined shape from the front end portion of each support arm portion 75 toward the front lower side. A gauge ring 71 is rotatably supported on the lower end of each gauge ring support arm 77 via a gauge ring support member 77a. The left and right gauge wheels 71, 71 are supported in an inclined manner so that the distance between them decreases toward the lower side, that is, in an inverted “C” shape when viewed from the front of the machine body. The left and right gauge rings 71, 71 are provided such that the distance between them can be adjusted according to the width of the flange 3 by the left / right position adjustment structure of the gauge ring support member 77 a of the gauge ring support arm 77. ing. Further, the left and right gauge wheels 71, 71 are provided such that their heights can be adjusted by operating a rotary handle 77 b provided on the upper side of the gauge wheel support arm 77.

  The leek harvester 1 having the above-described configuration includes a pair of left and right crushing devices 80 in the harvesting unit 5 in front of the digging unit 25 and behind the gauge wheel 71. The crushing device 80 is provided on both the left and right sides in front of the digging portion 25. The crushing device 80 has a crushing rotor 81 that acts on the heel 3 to break the shoulders on both sides of the heel 3 when digging the green onion 2 by the digging portion 25.

  The crushing device 80 reduces the entry resistance of the digging portion 25 to the ridge 3 by crushing both shoulder portions of the ridge 3 with the crushing rotor 81, and performs the digging work by the digging portion 25. Make it smooth. For this reason, the left and right crushing devices 80 are provided symmetrically so that the crushing rotor 81 is positioned on both shoulders of the heel 3.

  As shown in FIGS. 7 to 9, the crushing rotor 81 includes a disc-shaped claw mounting plate 82 and a plurality (six in this embodiment) of claws 83 attached to the claw mounting plate 82. The crushing rotor 81 has a direction perpendicular to the plate surface of the claw attachment plate 82 as a rotation axis direction, and the rotation axis is positioned at the center of the disc-like claw attachment plate 82.

  The claw 83 is an elongated plate-like member having a predetermined curved shape, and includes a linear attachment portion 83a and a curved claw body portion 83b. The claw 83 is attached to the claw mounting plate 82 with its mounting portion 83a along the inner plate surface of the claw mounting plate 82 and the claw body portion 83b protruding outward from the claw mounting plate 82. . The attachment portion 83a is fixed to the claw attachment plate 82 by a fixture 84 such as a bolt. The claw body 83b is curved in the direction opposite to the rotation direction of the claw mounting plate 82 when viewed from the rotation axis direction of the claw mounting plate 82, and left and right outside (as viewed from the fixed side of the mounting portion 83a). It has a curved shape on the opposite side. Each claw 83 is attached in a state in which the longitudinal direction of the attachment portion 83a is along the radial direction of the claw attachment plate 82, and the six claws 83 are arranged so as to radiate from the center position of the claw attachment plate 82. Are attached at equal intervals in the circumferential direction of the claw mounting plate 82.

  The left and right collapsing rotors 81 are provided in an inclined manner so that the distance between them decreases toward the lower side, that is, in an inverted “C” shape when viewed from the front of the machine body. The crumbling rotor 81 rotates so as to move the lower side forward, that is, up-cut (see arrow B1 in FIG. 9). The left and right collapsing rotors 81 cut the shoulders on both sides of the collar 3. Note that the number, shape, and mounting structure of the claws 83 are appropriately changed according to the shape and size of the ridge 3, the situation of the field, and the like, and are not particularly limited to the present embodiment.

  The crushing device 80 has a rotor rotation shaft 85 that rotates the crushing rotor 81. The rotor rotation shaft 85 extends from the center of the claw mounting plate 82 to the left and right outer sides (the outer side in the left and right direction of the fuselage, the same applies hereinafter). The rotor rotation shaft 85 is housed in a substantially cylindrical drive case 86. A cylindrical boss 87 is coaxially attached to the drive case 86 on the left and right inner sides of the drive case 86 (the inner side in the left-right direction of the machine body, the same applies hereinafter), that is, on the side where the collapsed rotor 81 is disposed. The rotor rotating shaft 85 protrudes from the drive case 86 to the left and right inner sides via the bosses 87, collapses at the tip thereof, and supports the claw mounting plate 82 of the rotor 81.

  The rotor rotating shaft 85 rotates in response to the rotational driving force of the rotor driving shaft 88 (see FIG. 12) housed in the pipe-shaped case 89. The pipe-shaped case 89 is arranged in a slanting shape on the left and right outer sides of the lower part of the machine body, and the front end portion is connected to the rear side of the drive case 86. The drive case 86 accommodates the gear connecting portions of the rotor drive shaft 88 and the rotor rotation shaft 85.

  The left and right rotor drive shafts 88 rotate in response to the rotational drive force of the working unit input shaft 90 housed in a horizontal shaft case 91 that is horizontally mounted on the front side of the machine body frame 8. The working unit input shaft 90 has the left-right direction of the machine body as the axial direction. A gear case 92 is provided at both left and right ends of the horizontal shaft case 91 to accommodate the gear connecting portions of the rotor drive shaft 88 and the working unit input shaft 90. A pipe-like shape is provided on the front side of the gear case 92. The rear end portion of the case 89 is connected.

  Thus, in the leek harvesting machine 1 according to the present embodiment, the drive case 86 that houses the drive mechanism for transmitting the driving force to the crushing rotor 81 is provided on the left and right outer sides of the machine body with respect to the crushing rotor 81. It has been. That is, on the left side of the crushing rotor 81L of the crushing device 80 on the left side, a drive case 86L that houses the rotor rotation shaft 85 connected to the claw mounting plate 82 of the crushing rotor 81L is disposed. On the right side of the crushing rotor 81R of the crushing device 80, a drive case 86R that houses the rotor rotation shaft 85 connected to the claw mounting plate 82 of the crushing rotor 81R is arranged. The driving mechanism housed in the driving case 86 for transmitting the driving force to the crumbling rotor 81 includes a rotor rotating shaft 85, a bevel gear 85a fixed to the rotor rotating shaft 85, and a rotor driving shaft 88. A bevel gear 88a fixed to the front end portion is included (see FIG. 12).

  The crushing device 80 has a rotor cover 100 that covers at least a part of each side of the crushing rotor 81 on the non-acting side, the rear side, and the upper side with respect to the heel 3. The rotor cover 100 is a cover for preventing soil scattering for preventing soil scattering caused by the collapse by the collapsed rotor 81.

  The rotor cover 100 is provided above the collapsed rotor 81, and includes an upper cover portion 100 a that covers the upper side of the collapsed rotor 81, the front oblique upper side, and the rear oblique upper side, and the left and right outer sides of the collapsed rotor 81, that is, And a side cover portion 100b covering the non-acting side with respect to the flange 3. The upper cover part 100 a and the side cover part 100 b are plate-like parts that are continuous in a bent shape, and have a convex curved surface structure along the upper part of the rotating outer shape of the collapsed rotor 81.

  The rotor cover 100 is attached in a state where the side cover portion 100b is supported by the plate-like cover stay 101. The cover stay 101 is fastened together with a bolt together with a boss 87 to a flange portion provided on the boss 87 side of the drive case 86 and is fixed to the upper side from a connecting portion of the drive case 86 and the boss 87. Has been. Most of the cover stay 101 is provided so as to overlap the upper half of the claw mounting plate 82 in a side view of the body. The rotor cover 100 is fixed to the cover stay 101 with a fixing tool 102 such as a bolt in a state where the side cover portion 100b is overlapped on the outside with respect to the cover stay 101. The fixing parts by the fixing tool 102 are provided at two front and rear positions in the front and rear intermediate part of the side cover part 100b.

  As described above, the rotor cover 100 collapses the side cover portion 100b in a state where the side cover portion 100b is overlapped with the cover stay 101 located on the left and right outer sides of the claw mounting plate 82, and positions the side cover portion on the left and right outer sides of the rotor 81. By collapsing the upper cover part 100a continuous with the upper part of 100b and causing it to rise above the rotor 81, the upper side and the left and right outer sides of the crumbling rotor 81 are covered.

  Further, a guide member 105 that guides the dead leaves of the green onions 2 and the like so that the dead leaves of the green onions 2 spreading to the left and right does not collapse and interfere with the rotor 81 is provided inside the left and right sides of each folding device 80. The guide member 105 is attached to the rotor cover 100 and provided above the crushing rotor 81. The guide member 105 includes a substantially straight rod-shaped main guide rod body 106, a bent rod-shaped sub guide rod body 107 provided in a branched manner with respect to the main guide rod body 106, the main guide rod body 106, and the sub guide rod body. And a bent plate-like mounting plate 108 that supports the rotor cover 100 with respect to the rotor cover 100.

  The main guide rod body 106 is provided in a forward and downward inclination so as to follow the forward downward inclination of the front portion of the upper cover portion 100 a of the rotor cover 100. As shown in FIG. 9, the main guide rod body 106 is linear in a side view, and the front end serving as the lower end in the vertical direction is positioned below the upper end position of the eaves 3 cut by the crushing device 80. The rear end that is the upper end is positioned above the front end of the belt conveyance mechanism 41 of the conveyance unit 26.

  Further, the main guide rod body 106 has a lower end serving as a front end in the front-rear direction, the front end being positioned forward of the rotor 81, and an upper end serving as the rear end being a belt transport position behind the collapsed rotor 81. It is located behind the front end of the mechanism unit 41. That is, the main guide rod body 106 is extended over a range that protrudes to the front and rear sides with respect to the collapsed rotor 81 having the rotation diameter D1 in the front-rear direction. Further, the main guide rod body 106 has a bent portion 106a at a position near its front end, a portion slightly inclined toward the left and right inner sides from the rear end to the bent portion 106a, and a left and right outer side from the bent portion 106a to the front end. And a slightly inclined portion.

  The sub guide rod body 107 extends the front end portion of the front portion 107a to the front side of the front end of the main guide rod body 106 in a state where the front portion 107a is abutted against the front end portion of the main guide rod body 106, and the main guide rod It is provided so as to branch upward from the body 106. The sub guide rod body 107 includes a front portion 107a along the front end portion of the main guide rod body 106, an intermediate portion 107b that is a bent portion with respect to the front portion 107a and has a substantially "V" shape together with the main guide rod body 106, A bent portion with respect to the intermediate portion 107b, and has a rear end portion 107c substantially parallel to the main guide rod body 106. That is, the intermediate portion 107b of the sub guide rod body 107 is a portion where the inclination angle with respect to the horizontal direction is larger than the forward downward inclination of the main guide rod body 106.

  The mounting plate 108 is a member in which a rectangular plate is bent, and includes an upper surface support portion 108a along the upper cover portion 100a of the rotor cover 100, and a side surface extending so as to hang from the upper surface support portion 108a to the left and right inside. And a support portion 108b. The mounting plate 108 is fixed at two positions on the front and rear sides by fasteners 109 such as bolts in a state where the upper surface support portion 108a is overlapped with the upper cover portion 100a from above. The mounting plate 108 is provided so as to partially cover the side support portion 108 b on the open side of the left and right inner sides of the rotor cover 100. The attachment plate 108 is attached to the rear portion of the inclined portion of the upper cover portion 100a that is lowered forward.

  A main guide bar body 106 and a sub guide bar body 107 are fixedly supported on the mounting plate 108. The main guide rod body 106 is fixed to the mounting plate 108 by welding or the like in such a manner that a portion closer to the front side of the intermediate portion in the extending direction is along the lower end edge of the side surface support portion 108b of the mounting plate 108. . The sub guide rod body 107 has a rear end portion 107c fixed to the front upper end portion of the side surface support portion 108b of the mounting plate 108 by welding or the like. Further, the sub guide rod body 107 is fixed to the front end portion of the main guide rod body 106 by welding or the like in the latter half portion of the front portion 107a.

  As described above, the main guide bar body 106 and the sub guide bar body 107 are fixedly supported on the mounting plate 108 and are mounted on the rotor cover 100 via the mounting plate 108. Further, in the guide member 105, according to the sub guide rod body 107 provided in a state of being laid between the front portion of the main guide rod body 106 and the mounting plate 108, the front portion of the main guide rod body 106 is reinforced. In addition, it is possible to reliably prevent the leek 2 from being caught on the mounting plate 108.

  Further, the fixing hole 108c through which the fastener 109 for fixing to the rotor cover 100 in the mounting plate 108 passes is a long hole whose longitudinal direction is the left-right direction. As a result, the fixing position of the mounting plate 108 with respect to the rotor cover 100, that is, the arrangement position of the main guide bar body 106 and the sub guide bar body 107 can be adjusted within the range of the length of the fixing hole 108c in the left-right direction. It has become. As described above, the guide member 105 is provided in an integral configuration so that the position of the guide member 105 can be adjusted in the left-right direction with respect to the rotor cover 100.

  Then, the support structure etc. of each working part with which the leek harvesting machine 1 which concerns on this embodiment is provided are demonstrated. As described above, the digging portion 25 has its rear end portion supported by the body frame frame 8 so as to be rotatable, and is provided so as to be movable up and down by the expansion and contraction operation of the lifting cylinder 35. Similarly, the conveyance unit 26 and the left and right crushing devices 80 and 80 are provided so as to be capable of moving up and down with respect to the traveling machine body 4.

  As shown in FIG. 6, the transport unit 26 and the left and right crushing devices 80 and 80 are configured to pivotally support the rear end portion on the traveling machine body 4 and raise and lower the front end portion side. The transport unit 26 and the left and right crushing devices 80 and 80 are respectively mounted on a horizontal shaft case 91 horizontally mounted on the front side of the body frame frame 8 by the shaft support portions 26a and 80a provided at the rear end portions. Is supported coaxially.

  The conveyance unit 26 includes a conveyance unit transmission case 111 that houses a transmission shaft and the like for transmitting power to the belt conveyance mechanism units 41 and 41 below the rear end. A horizontal shaft case 91 is provided behind the transfer unit transmission case 111. The horizontal shaft case 91 is supported by the support stays 112 provided on the left and right sides of the front side of the machine body frame 8 so as to be rotatable about the axis. The horizontal support shaft case 91 supports the shaft support 26 a of the transport unit 26. The crushing device 80 is connected to the rear end portion of the pipe-shaped case 89 and the vicinity of the connection portion of the gear case 92 connected to the left and right end portions of the horizontal shaft case 91 to the horizontal shaft case 91. Becomes the shaft support 80a.

  As described above, the transport unit 26 and the left and right crushing devices 80 and 80 are supported so as to be rotatable with respect to the traveling machine body 4 with the axial center position of the horizontal shaft case 91 as a common rotation center position. ing. Therefore, the conveyance unit 26 and the collapsing device 80 are provided such that the relative vertical positional relationship between the front end portions is adjusted by adjusting the rotation position with respect to the traveling machine body 4. Further, relative to the conveying unit 26 and the crushing device 80, the digging unit 25 is adjusted in the relative vertical position between the front end portions by adjusting the rotation position with respect to the traveling machine body 4.

  Further, as shown in FIG. 6, the rear end portion of the conveyance unit 26 is linked to the start end portion of the posture change / alignment unit 28. The transport unit 26 and the posture change / alignment unit 28 are supported by a transport unit support frame unit 72 and a transport unit transmission case 111 provided below these units. The transport unit 26 and the posture changing / aligning unit 28 are pivotally supported integrally with the support stay 112 via the horizontal shaft case 91. A support portion by the support stay 112 is located at a substantially front-rear central portion of an integral forward inclined configuration including the transport unit 26 and the posture change / alignment unit 28. Accordingly, when the integrated configuration including the transport unit 26 and the posture changing / aligning unit 28 is rotated so that the front side of the transport unit 26 is raised around the horizontal shaft case 91, the rear of the posture changing / aligning unit 28 is The side will descend.

  In addition, a pair of left and right vertical spacing adjustment mechanism portions 120 are provided between the digging conveyor 32 constituting the digging portion 25 and the front and rear intermediate portions of the transport portion 26. The vertical spacing adjustment mechanism 120 is directed upward from the arm-shaped upper support 121 extending downward from the stay 72a of the transporting support frame 72 and from the left and right lateral sides of the digging conveyor 32. And an arm-shaped lower support body 122 extended in a slidable manner. The upper support 121 is supported to be rotatable with respect to the stay 72a. The lower support body 122 is supported by the support portion 32 a so as to be rotatable with respect to the left and right side portions of the digging conveyor 32.

  The upper support body 121 and the lower support body 122 are fixed to each other by a fixing tool 123 such as a bolt that penetrates a fixing hole provided in each of the upper support body 121 and the lower support body 122. A plurality of fixing holes through which the fixing tool 123 penetrates are provided at intervals in the longitudinal direction (sliding direction) in each of the upper support 121 and the lower support 122. The fixing holes used for fixing by the fixing device 123 adjust the relative fixing positions of the upper support 121 and the lower support 122 in the longitudinal direction, that is, the length of the vertical distance adjustment mechanism 120 in a stepwise manner. . By adjusting the length of the vertical interval adjustment mechanism 120, the relative position in the vertical direction between the transport unit 26 and the digging conveyor 32 is adjusted.

  Then, due to the connecting structure of the digging portion 25 and the conveying portion 26 by the vertical interval adjusting mechanism portion 120, the conveying portion 26 is lifted and lowered together with the digging portion 25 in conjunction with the expansion and contraction operation of the lifting cylinder 35. It is configured as follows. The scraping portion 27 provided on the rear side of the digging portion 25 also moves up and down together with the digging portion 25.

  Further, in the leek harvester 1 according to the present embodiment, the digging portion 25, the conveyance portion 26, and the scraping portion 27 are along the front-rear direction in the left and right center portion of the traveling machine body 4, in detail. Are arranged in a line along the right and left center line. A boarding step 22 is provided behind these working units.

  In addition, a vertical distance adjustment member 125 is provided between the pipe-shaped case 89 extending rearward from the crushing device 80 and the front end portion of the transport unit 26. The vertical interval adjusting member 125 is fixed to the outer peripheral surface of the pipe-shaped case 89 by welding or the like so as to protrude upward at the front portion of the pipe-shaped case 89. The vertical spacing adjustment member 125 has a plate-like support surface portion 125a whose plate thickness direction is substantially the left-right direction.

  The vertical distance adjusting member 125 is fixed to the support body 126 provided on the left and right outer side surfaces of the mounting plate 72b provided at the front end of the transport unit support frame 72 by two fixtures 127 such as bolts. Yes. The vertical interval adjusting member 125 allows each fixing tool 127 to pass through the fixing long hole 125b. The fixing long hole 125b is a long hole whose longitudinal direction is substantially vertical.

  With such a configuration, the vertical distance adjusting member 125 is provided to the support 126 so that the vertical fixing position along the longitudinal direction of the fixing long hole 125b can be adjusted. By adjusting the fixed position in the vertical direction of the vertical interval adjusting member 125, the relative position in the vertical direction between the transport unit 26 and the collapsing device 80 is adjusted.

  Next, the power transmission configuration in the leek harvester 1 according to the present embodiment will be described with reference to FIG. The leek harvester 1 has a traveling machine transmission mechanism 131 provided in the traveling machine 4 and a harvesting part transmission mechanism 132 provided in the harvesting unit 5 as its power transmission configuration.

  In the traveling machine body transmission mechanism 131, the first between the output shaft 9a of the engine 9 mounted on the body frame frame 8 and the input shaft 133a of the hydraulic pump 133 mounted in front of the engine 9 as described above. A chain transmission mechanism 134 is provided. By the first chain transmission mechanism 134, the rotational driving force of the output shaft 9 a of the engine 9 is input to the input shaft 133 a of the hydraulic pump 133.

  A second chain transmission mechanism 136 is provided between the output shaft 9 a of the engine 9 and the input shaft 135 a of the speed change case 135 provided in the machine body frame 8. The second chain transmission mechanism 136 inputs the rotational driving force of the output shaft 9 a of the engine 9 to the input shaft 135 a of the transmission case 135. The power of the engine 9 is divided into two through a speed change case 135: a traveling drive system that drives the crawler unit 7; and a work drive system that drives each working unit.

  A first belt transmission mechanism 137 is provided between the left end portion of the output shaft 135 b of the transmission case 135 and the input shaft 10 a of the transmission 10 provided in the body frame frame 8. The first belt transmission mechanism 137 transmits the rotational driving force of the output shaft 135 b of the transmission case 135 to the input shaft 10 a of the transmission 10. The rotational driving force input to the input shaft 10 a of the transmission 10 is transmitted to the output shaft 10 b of the transmission 10 by a transmission mechanism that the transmission 10 has. Drive wheels 7a of the crawler unit 7 are attached to both ends of the output shaft 10b.

  The harvesting unit transmission mechanism unit 132 receives the rotational driving force of the output shaft 135 b of the transmission case 135 on the working unit input shaft 90 housed in the horizontal shaft case 91. Therefore, a second belt transmission mechanism 138 is provided between the right end portion of the output shaft 135 b of the transmission case 135 and the right end portion of the working unit input shaft 90. The second belt transmission mechanism 138 transmits the rotational driving force of the output shaft 135 b of the transmission case 135 to the working unit input shaft 90.

  A worm gear case 141 that houses a worm provided on the working unit input shaft 90 and a worm gear 141a made of a worm wheel meshing with the worm is provided on the left side of the working unit input shaft 90. From the worm gear case 141, a transmission shaft 142 that rotates integrally with the worm wheel of the worm gear 141a extends forward. A digging gear case 143 housing a bevel gear or the like is interlocked and connected to the front end portion of the transmission shaft 142. The gear case 143 is linked and connected to the left end portion of the drive shaft 144 provided in the rear portion of the digging conveyor 32 with the left-right direction as the axial direction. That is, the rotational driving force of the transmission shaft 142 is transmitted to the drive shaft 144 of the digging conveyor 32 via the bevel gear in the digging gear case 143, thereby driving the digging conveyor 32.

  In addition, the left end portion of the conveyance unit transmission horizontal shaft 145 arranged substantially parallel to the front of the working unit input shaft 90 is linked to the rear portion of the transmission shaft 142 via the output gear 142a and the input gear 145a. Has been. The lower end portion of the left pulley drive shaft 146 is interlocked and connected to the middle portion of the conveying portion transmission horizontal shaft 145 via the first output gear 145b and the input gear 146a. A drive pulley 42 of the left belt transport mechanism 41 is attached to an upper end portion of the left pulley drive shaft 146, and a drive pulley 52 of the left belt transfer mechanism 51 is provided in the middle of the left pulley drive shaft 146. Is attached.

  In addition, the lower end portion of the right pulley drive shaft 147 is linked and connected to the right end portion of the conveying portion transmission horizontal shaft 145 via the second output gear 145c and the input gear 147a. The upper pulley of the right pulley drive shaft 147 is linked to the drive pulley 42 of the right belt transport mechanism 41 via a chain transmission mechanism 148, and the right belt drive shaft 147 is connected to the right belt. A drive pulley 52 of the transfer mechanism 51 is attached. The rotational drive force of the right pulley drive shaft 147 is located above the drive pulley 52 of the right belt transfer mechanism 51 via a chain transmission mechanism 148 extending from the upper end of the right pulley drive shaft 147 toward the rear of the machine body. This is transmitted to the rotation shaft 42a of the drive pulley 42 of the right belt transport mechanism 41.

  The right side portion of the working unit input shaft 90 is linked and connected to a belt transmission mechanism 149 that transmits the rotational power of the working unit input shaft 90 to the earth removing shaft 150. The belt transmission mechanism 149 includes a pulley 90 a fixed to the right end of the working unit input shaft 90, a pulley 150 a fixed to the right end of the soil dropping shaft 150, and a belt wound around these pulleys. The earth dropping shaft 150 protrudes rightward from the rear end of the chain case 48. Further, from the front end portion of the chain case 48, the rotation shaft 46 of the soil dropping rotary body 45 projects leftward. The chain transmission mechanism 48a in the chain case 48 includes a sprocket 150b fixed to the left end of the earth dropping shaft 150, a sprocket 46a fixed to the right end of the rotating shaft 46, and a chain wound around these sprockets. Have. In this way, the rotational power of the working unit input shaft 90 is transmitted to the rotational shaft 46 by the belt transmission mechanism 149 and the chain transmission mechanism 48a, and thereby the earth dropping rotator 45 is rotationally driven.

  Further, the left and right sides of the working unit input shaft 90 are respectively connected to a rotor via a bevel gear 90b fixed to the working unit input shaft 90 and a bevel gear 88b fixed to the rear end of the rotor drive shaft 88. The rear end portion of the drive shaft 88 is interlocked and connected. That is, the rotational driving force of the working unit input shaft 90 is transmitted to the rotor driving shaft 88 by the bevel gears 90b and 88b. The rotational driving force of the rotor driving shaft 88 is transmitted to the rotor rotating shaft 85 by a bevel gear 88a fixed to the front end portion of the rotor driving shaft 88 and a bevel gear 85a fixed to the end portion of the rotor rotating shaft 85. .

  In the leek harvesting machine 1 having the above-described configuration, the blade portion provided at the tip of the digging portion 25 is moved below the rhizome portion 2a of the leek 2 planted in the cocoon 3 while the machine body is advanced. By making it approach, the leek 2 is dug up, and it is dug up and conveyed while pinching the leaf part 2b of the leek 2 dug up. Specifically, the green onion 2 is harvested as follows.

  The leek harvesting machine 1 travels the traveling machine body 4 along the extending direction of the basket 3 while following the skirt of the basket 3 by the left and right gauge wheels 71, 71. Further, the traveling machine body 4 has the left and right crawler portions 7 and 7 positioned in a horizontal groove (hereinafter referred to as “畝 horizontal groove”) 3 a of the heel 3, and the heel 3 is positioned between the left and right crawler portions 7 and 7. And run. The operator A <b> 1 performs the traveling operation of the traveling machine body 4 while performing the harvesting operation by the harvesting unit 5 by operating the operation unit 11.

  In the digging of the green onion 2 by the digging portion 25, first, the digging blade 33 is caused to enter below the rhizome portion 2 a of the green onion 2 of the ridge 3. Here, when the leek 2 is dug, the shoulders on both sides of the heel 3 are cut by the crushed rotor 81 of the left and right crushing devices 80, 80.

  Thereafter, the leek 2 is conveyed in a vertical posture by the digging conveyor 32, is taken over by the conveying unit 26, and is conveyed rearward while being sandwiched between the left and right belt conveying mechanism units 41 and 41. During the conveyance of the conveyance unit 26, the soil removal of the rhizome part 2 a of the green onion 2 is performed by the soil removal rotating body 45 of the scraping unit 27. This soil removal makes it easy to clean the leek 2 after harvesting.

  After that, the green onion 2 is taken over from the conveying unit 26 to the posture changing / aligning unit 28 and transferred by the left and right belt transfer mechanism units 51. As a result, the green onions 2 are conveyed along the conveyance direction while changing the posture from the standing posture to the leaning posture (forward leaning posture), and are conveyed obliquely left rearward and upward, and sequentially collected and stored in the collecting unit 29.

  In particular, according to the configuration provided with the pair of left and right crushing devices 80, 80 as in the leek harvesting machine 1 according to the present embodiment, the left and right crushing is performed before the digging of the leek 2 by the digging unit 25. By the rotor 81, the left and right shoulder portions of the flange 3 are cut so as to have a precipice shape, and the flange 3 has a narrow and protruding shape. By breaking the ridge 3, the resistance that the digging portion 25 enters into the soil, that is, the entry resistance of the digging blade 33 to the ridge 3 is reduced, and the digging work by the digging portion 25 becomes easy. Moreover, since the digging resistance of the leek 2 by the digging conveyor 32 is also reduced, the transfer work of the leeks 2 by the digging conveyor 32 is facilitated.

  Moreover, the soil generated by the breaking of the dredging 3 is crushed by the crushing rotor 81 or the like, and falls into the inter-groove groove 3a on the left and right sides of the dredging 3 as it is. The soil that has fallen into the inter-groove groove 3a accumulates evenly on the left and right sides of the trough 3 and does not hinder the stability of the running posture by the left and right crawler portions 7 and 7.

  Moreover, according to the structure provided with the rotor cover 100 which covers the crushing rotor 81 in the crushing device 80, it is prevented that the crushing rotor 81 which rotates so that it cuts up may be scraped up and scattered. . As a result, it is possible to prevent soil from being applied to the body of the leek harvesting machine 1 and the leek 2 before harvesting by the worker A1 and the straw 3.

  That is, by crushing with the rotor cover 100 and covering the upper side of the rotor 81, it is possible to prevent the soil from being scraped upward and falling down on the machine body. Moreover, by crushing with the rotor cover 100 and covering the left and right outer sides of the rotor 81, it is possible to prevent the soil from falling on the undigged green onions 2 of the adjacent cage 3. Moreover, by collapsing with the rotor cover 100 and covering the rear side of the rotor 81, it is possible to prevent the soil from falling on the worker A1 and the like.

[Configuration of the discharge soil guide]
In the leek harvesting machine 1 according to the present embodiment having the above-described configuration, the soil generated by the crushing by the crushing rotor 81 that rotates so as to cut up becomes, for example, a non-covered portion by the rotor cover 100. The paper is discharged from the front of the rotor cover 100 and from the lower side of the rotor cover 100 on the left and right outer sides. In such a soil discharge mode, for example, the soil discharged to the front of the rotor cover 100 flows relatively rearward as the machine body of the leek harvesting machine 1 advances, and moves outward of the rotor cover 100. In some cases, the soil removal from the rotor cover 100 may not be performed satisfactorily due to hindering the discharge of the soil. Further, when the height of the cage 3 is low, the height of the crushing device 80 is also lowered accordingly, so that the amount of soil discharged from the lower side of the rotor cover 100 is reduced, and this also means that the soil from the rotor cover 100 is reduced. It causes a decrease in baldness.

  Therefore, the leek harvesting machine 1 according to the present embodiment includes a discharged soil guide unit 160 on the left and right outer sides of the left and right crushing devices 80. The discharge soil guide unit 160 is provided on the left and right outer sides of the aircraft with respect to the collapse rotor 81, and guides the soil generated by the collapse by the collapse rotor 81 and discharged from the collapse device 80 to the left and right outer sides of the aircraft. It is the structure for. The left and right discharge soil guide portions 160 and 160 are configured symmetrically including the support structure and the like.

  In the present embodiment, the discharged soil guide unit 160 includes a discharged soil guide plate 161 having a plate surface as the guide surface 160a. That is, in the present embodiment, the discharged soil guide unit 160 has a guide surface 160a that guides the soil discharged from the crushing device 80 to the left and right outer sides of the aircraft, and rectifies the flow of the soil as the aircraft advances. .

  The earth removal guide plate 161 is a rectangular plate-like member as a whole. The soil discharge guide plate 161 is provided so that the front plate surface portion is a guide surface 160a and the guide surface 160a is directed obliquely downward on the left and right sides. Therefore, the soil discharge guide plate 161 is provided so as to be inclined forward in a side view. In addition, the soil discharge guide plate 161 is in a state in which the vertical side portion in the rectangular outer shape is inclined so as to be located on the left and right inward as viewed from the front side, that is, the horizontal side portion in the rectangular outer shape is The left and right outer sides are inclined so as to be positioned on the lower side. Therefore, when viewed from the front, the pair of left and right soil discharge guide plates 161 are provided so that the vertical sides are substantially V-shaped when attention is paid to the vertical sides in the rectangular outer shape. When attention is paid to the horizontal side portion of the outer shape of the shape, the horizontal side portion is provided so as to follow a substantially “C” shape (substantially inverted “V” shape) (see FIG. 8).

  The earth removal guide plate 161 is provided at the left and right outer positions of the crushing rotor 81. That is, the left soil discharge guide plate 161 is provided on the left side of the left collapse rotor 81L, and the right soil discharge guide plate 161 is provided on the right side of the right collapse rotor 81R. The earth removal guide plate 161 is provided so as to correspond to the lower half portion of the collapsed rotor 81 in the vertical direction. Further, in the left-right direction, the earth discharge guide plate 161 has the left and right inner ends positioned inside the front portion of the rotor cover 100, and most of the left and right outer sides project from the rotor cover 100 to the left and right outer sides. Is provided.

  The soil discharge guide plate 161 collapses its lower end edge portion and is positioned at a height position substantially the same as the height position of the lower end of the rotor 81. That is, the lower end edge portion of the soil discharge guide plate 161 is located at substantially the same height as the bottom surface portion of the intercostal groove 3a. Therefore, the soil discharge guide plate 161 may have its lower end edge positioned slightly above the bottom surface of the intercostal groove 3a, and provided so that the lower end edge interferes with the bottom surface of the intercostal groove 3a. May be. A bent portion 161 a that is bent forward along the edge portion is provided at the lower end portion of the soil discharge guide plate 161. The bent portion 161 a is a portion bent so as to form an obtuse angle with respect to the main body portion of the soil discharge guide plate 161.

  Further, the discharged soil guide portion 160 is provided in front of the drive case 86 that houses the rotor rotation shaft 85. The drive case 86 is provided on the left and right outer sides of the cover stay 101 that supports the front and rear intermediate portions of the side cover portion 100 b of the rotor cover 100. Further, the drive case 86 has a substantially cylindrical outer shape, and is provided in an inclined shape so that the cylinder axis direction is along the axial direction of the rotor rotation shaft 85 and descends to the left and right outer sides. That is, the drive case 86 protrudes from the rotor cover 100 to the left and right outer sides as an inclined cylindrical portion that goes down to the left and right outer sides. Then, a soil discharge guide plate 161 is provided so as to cover the drive case 86 that is a protruding portion from the rotor cover 100 to the left and right outer sides from the front side.

  The earth removal guide plate 161 is provided so as to cover the entire drive case 86 in a front view, that is, the entire drive case 86 is hidden behind the earth discharge guide plate 161 in a front view. Therefore, the soil discharge guide plate 161 is extended to the left and right outer sides of the left and right outer ends of the drive case 86 with respect to the left and right outer sides. Further, with respect to the vertical direction, the earth discharge guide plate 161 has its upper end edge positioned above the drive case 86 and its lower end edge positioned below the drive case 86 at the bottom surface of the intercostal groove 3a. It is located near the part. Note that the size and arrangement position of the soil discharge guide plate 161 are not limited to the present embodiment, and are appropriately set in relation to the size and arrangement position of the collapsed rotor 81.

  Here, an example of the support structure of the soil discharge guide plate 161 will be described. As shown in FIGS. 10, 11, and 13, support arms 162 protrude from the back side of the upper end of the soil discharge guide plate 161 at two left and right ends. The support arm 162 is composed of an angle member having an L-shaped cross section that is fixed to the back side of the soil discharge guide plate 161 by welding or the like, and has a support surface portion 162a whose substantially vertical direction is the plate thickness direction.

  Of the two support arms 162, the left and right outer support arms 162X are fixedly supported by an outer mounting plate 164 supported by a rib member 163 standing upright on the rear side of the drive case 86. Of the two support arms 162, the left and right inner support arms 162 </ b> Y are fixedly supported by an inner mounting plate 166 provided at the lower part of the front edge of the cover stay 101. 10, FIG. 11 and FIG. 13 show the configuration in the vicinity of the right crushing device 80, so that the left and right outer support arms 162X become the right support arms 162 and the left and right inner support arms 162Y. Becomes the left support arm 162.

  The rib member 163 is provided along the outer surface portion of the intermediate portion before and after the rotor cover 100. The rib member 163 includes a plate-like base plate portion 163a having a substantially triangular shape when viewed from the front, and a side plate portion 163b bent substantially at a right angle rearward from the left and right outer sides of the base plate portion 163a with respect to the base plate portion 163a. Have The rib member 163 is fixed to each of the rotor cover 100 and a circular plate-like interposed plate 167 provided in a flange shape at the front end of the drive case 86 by welding or the like. A drive case 86 is attached to the front side of the interposed plate 167.

  For the rotor cover 100, the rib member 163 is a support stay that is fastened together at a fixing portion by the fixing tool 102A on the rear side of the two fixing tools 102 for fixing the rotor cover 100 to the cover stay 101. It is fixed to 168. That is, the rib member 163 is fixedly supported on the rotor cover 100 via the support stay 168. The support stay 168 includes a support plate portion 168 a that protrudes outward from the outer side surface of the rotor cover 100. The rib member 163 is fixed to the support plate portion 168a of the support stay 168 by welding or the like in such a manner that the upper end portion of the base plate portion 163a is overlapped on the front side.

  Further, the rib member 163 has a concave curved shape along the outer peripheral surface of the pipe-shaped case 89 at the lower end thereof, and is driven together with the interposition plate 167 so as to straddle the pipe-shaped case 89 above the rib-shaped member 163. The case 86 is fastened and fixed by fixing bolts 169. The rib member 163 is a mode in which the lower end portion of the base plate portion 163a is overlapped on the rear side with respect to the interposed plate 167, and the left and right end portions are fixed to the drive case 86 via the interposed plate 167 with fixing bolts 169, respectively. I am letting. An outer mounting plate 164 is fixed to the left and right outer sides of the side plate portion 163b at the lower portion of the rib member 163.

  The outer mounting plate 164 is configured by an angle member having an L-shaped cross section, and one plate surface portion of the plate surface portions that are perpendicular to each other is a fixed surface portion 164a with respect to the side surface plate portion 163b of the rib member 163, and the other The plate surface portion is a support surface portion 164b that supports the support arm 162X. The outer mounting plate 164 is fixed to the rib member 163 by mounting bolts 170 in such a manner that the fixing surface portion 164a is overlapped on the left and right outer sides on the side surface plate portion 163b of the rib member 163. The outer mounting plate 164 supports the support arm 162X at the front end portion of the support surface portion 164b. The support arm 162X is fixed on the support surface portion 164b of the outer mounting plate 164 by a fixing bolt 171. As described above, the earth discharge guide plate 161 supports the left and right outer support arms 162 </ b> X on the rib member 163 via the outer mounting plate 164.

  The inner mounting plate 166 is configured by an angle member having a cross-sectional “L” shape, and one of the plate surface portions perpendicular to each other serves as a fixing surface portion 166a for the cover stay 101, and the other plate surface portion is A support surface portion 166b that supports the support arm 162Y is used. The inner mounting plate 166 is fixed to the drive case 86 together with the cover stay 101 by a fastener such as a bolt (not shown) in a form in which the fixed surface portion 166a is overlapped on the inner side surface of the cover stay 101. The inner mounting plate 166 supports the support arm 162Y at the front end portion of the support surface portion 166b. The support arm 162 </ b> Y is fixed on the support surface portion 166 b of the inner mounting plate 166 by a fixing bolt 172.

  As described above, in the support structure of the soil discharge guide plate 161 in which the two support arms 162 are fixedly supported by the outer mounting plate 164 and the inner mounting plate 166, the soil discharge guide plate 161 has a direction substantially along the vertical direction. As the rotation axis direction, the angle can be adjusted. The specific structure is as follows.

  The fixing bolt 171 that fixes the left and right outer support arms 162X and the fixing bolt 172 that fixes the left and right inner support arms 162Y both have the central axis direction substantially along the vertical direction. The two support arms 162 are supported so as to be relatively rotatable with respect to each mounting plate, with the central axis of the fixing bolt as the rotation axis. In addition, in the outer mounting plate 164 that supports the support surface portion 162a of the support arm 162, the bolt holes 164c through which the mounting bolts 170 penetrate the rib member 163 have a predetermined interval in the longitudinal direction of the outer mounting plate 164 substantially along the front-rear direction. It is provided at three places in a row.

  In such a structure, the angle of the soil discharge guide plate 161 is adjusted by the bolt hole 164c used when the outer mounting plate 164 is fixed to the rib member 163 by the mounting bolt 170. That is, the forward protrusion amount of the outer mounting plate 164 from the rib member 163 varies depending on the position of the bolt hole 164c (bolt hole 164c through which the mounting bolt 170 passes) used for fixing the outer mounting plate 164. This change in the amount of protrusion is accompanied by the relative rotation of the two support arms 162 with respect to the respective mounting plates, and the rotation position of the soil discharge guide plate 161 around the support portion by the fixing bolt 172 of the inner mounting plate 166, that is, the discharge. The angle of the earth guide plate 161 is changed. Therefore, when the rear bolt hole 164c is used, the soil discharge guide plate 161 approaches a direction parallel to the left-right direction, and when the front bolt hole 164c is used, the soil discharge guide plate 161 is inclined with respect to the left-right direction.

  Next, the structure of the soil discharge guide plate 161 will be described. The earth discharge guide plate 161 includes a rectangular plate-shaped base plate member 176 and a rectangular plate-shaped adjustment plate member 177 that overlaps with the front side of the base plate member 176, and has a two-layer structure of these plate members. It has become.

  The base plate member 176 is a plate member that forms the base portion of the soil discharge guide plate 161, and is a portion that is supported by the outer mounting plate 164 and the inner mounting plate 166 via the two support arms 162. Therefore, the two support arms 162 are projected from the back side of the soil discharge guide plate 161.

  The adjustment plate member 177 has substantially the same vertical and horizontal dimensions as the base plate member 176. A bent portion 161 a of the earth discharge guide plate 161 is provided along the lower edge portion of the adjustment plate member 177. In addition, bent portions 176a that are bent at a substantially right angle toward the rear side are provided on the left and right edges of the base plate member 176.

  The adjustment plate member 177 is fixed to the base plate member 176 at a plurality of locations by fixing bolts 178. The fixing bolt 178 passes through bolt holes 176b and 177b formed in the base plate member 176 and the adjustment plate member 177, respectively.

  A plurality of bolt holes 176b and 177b for fixing with fixing bolts 178 are provided in each of the base plate member 176 and the adjustment plate member 177 so that the fixing position of the adjustment plate member 177 with respect to the base plate member 176 can be adjusted. ing. Specifically, in the base plate member 176, 16 bolt holes 176b of 4 rows × 4 columns are provided on the entire surface of the base plate member 176 at a predetermined interval. Further, in the adjustment plate member 177, eight bolt holes 177b of 2 rows × 4 columns are provided at predetermined intervals in the upper half portion thereof. A total of four bolt holes 176b and 177b are used on both the left and right sides, and the adjustment plate member 177 is fixed to the base plate member 176 by four fixing bolts 178.

  In such a structure, the adjustment plate member 177 is fixed relative to the base plate member 176 in the vertical and horizontal directions by the bolt holes 176b and 177b used when the adjustment plate member 177 is fixed to the base plate member 176 by the fixing bolt 178. Fixed position is adjusted. With this fixing position, the size of the overlapping portion of the adjustment plate member 177 with respect to the base plate member 176 changes, and the external dimensions of the soil discharge guide plate 161 change. That is, the smaller the size of the overlapping portion of the adjustment plate member 177 with respect to the base plate member 176, the larger the outer dimension of the soil discharge guide plate 161, and the larger the size of the overlapping portion, the larger the size of the soil discharge guide plate 161. Outer dimensions are reduced. And according to the arrangement space | interval of several bolt hole 176b, 177b, the external dimension of the earth removal guide plate 161 is adjusted in steps.

  As described above, the soil discharge guide plate 161 is configured such that the vertical and horizontal dimensions can be adjusted. In the present embodiment, the vertical and horizontal dimensions of the soil discharge guide plate 161 can be adjusted stepwise by adjusting the fixing position with the fixing bolt 178. For example, the adjusting plate member 177 with respect to the base plate member 176 is configured. A configuration in which the vertical and horizontal dimensions of the soil discharge guide plate 161 are adjusted steplessly by the slide structure or the like may be employed.

[Details of rotor cover structure]
Details of the structure of the rotor cover 100 will be described with reference to FIGS. 11 and 13 to 16. As described above, the rotor cover 100 includes the upper cover portion 100a that covers the upper side of the collapsed rotor 81 and the side cover portion 100b that covers the left and right outer sides (non-operating side) of the collapsed rotor 81. The rotor cover 100 includes a base cover element 180 that forms the base of the rotor cover 100, and rotating cover elements (181, 182) that are rotatably connected to the base cover element 180. The size of the soil discharge path from the crushing device 80 is changed by the rotation of the rotation cover element.

  The rotor cover 100 according to this embodiment includes a front rotation cover element 181 provided on the front side of the base cover element 180 and a rear rotation cover element 182 provided on the rear side of the base cover element 180 as rotation cover elements. And have. In the rotor cover 100, the base cover element 180 is supported by the cover stay 101 in a fixed state by the fixture 102, and the front rotation cover element 181 and the rear rotation cover element 182 can be rotated before and after the base cover element 180. To support.

  The rotor cover 100 is divided into three parts in the front-rear direction by a base cover element 180, a front rotation cover element 181, and a rear rotation cover element 182. Each of these cover elements has a cover part that covers the upper side as a part that constitutes the upper cover part 100a, and a cover part that covers the left and right outsides as a part that constitutes the side cover part 100b.

  The front rotation cover element 181 is supported by the front hinge portion 183 so as to be vertically rotatable with respect to the base cover element 180. The front hinge part 183 connects the upper surface part of the base cover element 180 and the upper surface part of the front rotation cover element 181 to each other. The front hinge portion 183 includes a configuration in which a rotation support arm 185 is rotatably supported by a cylindrical rotation support portion 184 provided along the front end edge on the front side of the upper surface portion of the base cover element 180. .

  The rotation support arm 185 is a bent rod-like member in which portions on both ends are bent at a substantially right angle so as to form a substantially “U” shape, and a linear intermediate portion is passed through the rotation support portion 184. In this state, it is supported by the rotation support portion 184. The two arm portions of the rotation support arm 185 protruding forward from both ends of the rotation support portion 184 are fixed by welding or the like with the rear end portion of the upper surface portion of the front rotation cover element 181 covered from above. Has been.

  With such a configuration, the front rotation cover element 181 is connected to the base cover element 180 so that the upper surface portions can be rotated by the front hinge portion 183. Therefore, when the front rotation cover element 181 is rotated upward (see FIGS. 14 and 15, arrow C1), the side cover portions of the front rotation cover element 181 and the base cover element 180 are opened. An open part is formed in the front part of 100b.

  Further, an opening preventing portion 181 a is provided at the rear end portion of the upper surface portion that is a connecting portion by the front hinge portion 183 of the front rotation cover element 181. The opening preventing portion 181a is a bent surface portion that is bent so that the rear end edge portion of the upper surface portion of the front rotation cover element 181 rises. The anti-opening portion 181a abuts the front end edge of the upper surface portion of the base cover element 180 from above, thereby restricting the upward rotation of the front rotation cover element 181 at a predetermined rotation position.

  The rear rotation cover element 182 is supported by the rear cover 186 so as to be vertically rotatable with respect to the base cover element 180. The rear hinge portion 186 connects the upper surface portion of the base cover element 180 and the upper surface portion of the rear rotation cover element 182 to each other, and has substantially the same configuration as the front hinge portion 183.

  That is, the rear hinge portion 186 has a substantially U-shaped rotation support arm on a cylindrical rotation support portion 187 provided along the rear end edge on the rear side of the upper surface portion of the base cover element 180. The structure which supported 188 so that rotation was possible is provided. Then, the two arm portions of the rotation support arm 188 protruding rearward from both ends of the rotation support portion 187 are welded or the like with the front end portion of the upper surface portion of the rear rotation cover element 182 covered from above. It is fixed.

  With such a configuration, the rear rotation cover element 182 connects the upper surface portions to the base cover element 180 so as to be rotatable by the rear hinge portion 186. Therefore, when the rear rotation cover element 182 is rotated upward (see FIGS. 14 and 15 and arrow C2), the side surfaces of the rear rotation cover element 182 and the base cover element 180 are opened to the side. An open part is formed in the rear part of the cover part 100b.

  As described above, the rotor cover 100 is in a closed state in which the integral convex curved surface structure is formed, and the front rotation cover element 181 and the rear rotation cover element 182 are respectively rotated upward with respect to the base cover element 180. It has an open / close structure that can be opened. With such an open / close structure, the size of the soil discharge path from the crushing device 80, that is, the size of the open portion from the inside to the outside of the rotor cover 100 changes. The upward rotation state of each of the front rotation cover element 181 and the rear rotation cover element 182 is, for example, the inner peripheral surfaces of the cylindrical rotation support portions 184 and 187 in the front and rear hinge portions 183 and 186, respectively. It is held by a frictional force between the rotation support arms 185 and 188 inserted through the rotation support portions 184 and 187 and the outer peripheral surface of the intermediate support portion.

  In the rotor cover 100 according to the present embodiment, the front rotation cover element 181 and the rear rotation cover element 182 are each configured to be partially deformable. Specifically, it is as follows.

  The front rotation cover element 181 includes a base cover surface portion 191 and a movable cover surface portion 192 that is a surface portion connected to the base cover surface portion 191 and is configured to be deformable.

  The base cover surface portion 191 is a surface portion constituting the upper surface portion of the front rotation cover element 181. The base cover surface portion 191 is a metal plate-like portion, and is a portion connected to the base cover element 180 by the front hinge portion 183. An anti-opening portion 181a is provided along the rear end edge of the base cover surface portion 191. The base cover surface portion 191 has a substantially trapezoidal shape with the front side as the upper bottom side in plan view. A movable cover surface portion 192 is provided so as to hang down from the left and right sides of the base cover surface portion 191.

  The movable cover surface portion 192 is fastened to the base cover surface portion 191 by a fastener 193 such as a bolt on a hook-shaped attachment piece portion 191a provided in a bent shape on the left and right outer sides of the base cover surface portion 191. Yes. The movable cover surface portion 192 is continuously bent downward from the left and right outer sides of the inclined surface portion 192a in accordance with the bent shape of the base cover element 180 in the left-right direction, forming a portion bent in an inclined manner with respect to the base cover surface portion 191. Side surface portion 192b.

  The movable cover surface portion 192 is configured with a rubber plate as a base, and has a form holding member 194 for holding the form of the rubber base. The shape holding member 194 is provided in such a manner that it is stuck along the back surface of the base body of the movable cover surface portion 192. The shape holding member 194 is an elongated rectangular (band-shaped) metal plate-like member, and has a bent shape corresponding to the bent shape of the movable cover surface portion 192 in the longitudinal direction, and the inclined surface portion 192a and the side surface portion. It has a part corresponding to each surface part of 192b. The shape holding member 194 is a member having plasticity. Therefore, the shape holding member 194 can be deformed by changing the bending angle, for example, and the deformed shape is held.

  The shape holding member 194 has its upper end fixed to the mounting piece 191a together with the base of the movable cover surface 192 by the stopper 193, and the center and lower end in the longitudinal direction are fixed to the side surface 192b such as a bolt. The stopper 195 is fixed to the base body of the movable cover surface portion 192. Two shape holding members 194 are provided at the front and rear portions of the movable cover surface portion 192.

  According to the front rotation cover element 181 having such a configuration, the shape of the portion of the movable cover surface portion 192 can be arbitrarily deformed, and the deformed shape can be maintained. Therefore, for example, by deforming the movable cover surface portion 192 so as to open to the left and right sides, the front turning cover element 181 is opened with respect to the left and right outside sides independently of the opening operation by the upper turning by the front hinge portion 183. It becomes possible to make it.

  The rear rotation cover element 182 includes a base cover surface portion 196, an outer movable cover surface portion 197 provided on the left and right outer sides with respect to the base cover surface portion 196, and an inner movable cover provided on the left and right inner sides with respect to the base cover surface portion 196. And a surface portion 198.

  The base cover surface portion 196 is a surface portion that constitutes a main portion of the upper surface portion of the rear rotation cover element 182. The base cover surface part 196 is a metal plate-like part, and is a part connected to the base cover element 180 by the rear hinge part 186. The base cover surface portion 196 has a substantially right triangle shape with the left and right inner sides and the rear side as the hypotenuse side in plan view.

  An outer movable cover surface portion 197 is provided so as to hang down from the left and right outer side portions of the base cover surface portion 196. Further, an inner movable cover surface portion 198 is provided so as to form the same rectangular surface portion as the base cover surface portion 196 from the oblique side of the base cover surface portion 196. Therefore, the inner movable cover surface part 198 has a substantially right triangle shape so as to form a rectangular shape together with the base cover surface part 196.

  The outer movable cover surface portion 197 and the inner movable cover surface portion 198 are portions formed by using a rubber plate as a base, like the movable cover surface portion 192 in the front rotation cover element 181. The outer movable cover surface portion 197 and the inner movable cover surface portion 198 are constituted by an integral rubber plate provided inside the base cover surface portion 196. That is, the integral rubber plate constituting the outer movable cover surface portion 197 and the inner movable cover surface portion 198 has an outer shape that conforms to the entire shape of the rear rotation cover element 182 and overlaps the back surface side of the base cover surface portion 196. Is provided. The rubber plate is fixed to the base cover surface portion 196 by a plurality of stoppers 199. In addition, as a part of the arrangement part of the stopper 199, the attachment side part 196a similar to the attachment piece part 191a of the base cover surface part 191 is provided on the left and right outer side parts of the base cover surface part 196. The outer movable cover surface portion 197 and the inner movable cover surface portion 198 are configured by rubber plate portions that protrude from the base cover surface portion 196 to the left and right outer sides and the left and right inner sides, respectively.

  The outer movable cover surface portion 197 has the same form as the movable cover surface portion 192 of the front rotation cover element 181. That is, the outer movable cover surface portion 197 has an inclined surface portion 197a and a side surface portion 197b following the bent shape of the base cover element 180 in the left-right direction.

  In the rear rotation cover element 182, the shape holding member 200 is provided on the back surface side of the rubber plate constituting the outer movable cover surface portion 197 and the inner movable cover surface portion 198 similarly to the shape holding member 194 of the front rotation cover element 181. ing. The shape holding member 200 has a bent shape corresponding to the bent shape of the rear rotation cover element 182 in the longitudinal direction, and includes the upper surface portion of the rear rotation cover element 182 including the inner movable cover surface portion 198 and the outer movable cover. It has portions corresponding to the respective surface portions of the inclined surface portion 197a and the side surface portion 197b of the surface portion 197.

  The shape holding member 200 is fixed to the base cover surface portion 196 together with the rubber base by a stopper 199 and is fixed to the rubber base by a stopper 201 such as a bolt. Three shape holding members 200 are provided at the front, center, and rear of the rear rotation cover element 182.

  According to the rear rotation cover element 182 having such a configuration, the shapes of the outer movable cover surface portion 197 and the inner movable cover surface portion 198 can be arbitrarily deformed, and the deformed shape can be maintained. Therefore, for example, by deforming the outer movable cover surface portion 197 so as to open to the left and right outer sides, the rear turning cover element 182 is separated from the left and right outer sides independently of the opening operation by the upper turning by the rear hinge portion 186. Can be opened. Further, for example, by folding the inner movable cover surface portion 198 upward or downward with respect to the base cover surface portion 196 (FIG. 14, arrow E1), the left and right inner portions of the rear end portion of the rotor cover 100 can be opened and closed. it can.

  Further, the rotor cover 100 is provided so as to be able to rotate back and forth as a whole. The rotor cover 100 is fixedly supported on the cover stay 101 at two front and rear positions by a fixture 102 on the left and right side surfaces of the base cover element 180. In such a support configuration, the rotor cover 100 is provided so as to be rotatable with a support portion formed by the front fixture 102B as a starting point (see FIG. 16, arrow F1). For this reason, the hole 180a through which the rear fixing tool 102A penetrates in the base cover element 180 is an arc-shaped long hole that follows a rotation trajectory centering on the fixing tool 102B so as to allow the rotor cover 100 to rotate. It has become.

  According to such a rotation configuration of the rotor cover 100, the main guide bar body 106 and the sub guide bar body 107 of the guide member 105 attached to the rotor cover 100 as described above are moved along with the rotation of the rotor cover 100. And can be tilted integrally with the rotor cover 100. In other words, the inclination angle of the main guide bar body 106 and the sub guide bar body 107 can be adjusted by adjusting the rotation position of the rotor cover 100.

[Configuration of soil removal part]
Next, the structure of the earth removal part 210 with which the leek harvesting machine 1 which concerns on this embodiment is provided is demonstrated. The earth removal part 210 is a structure for aiming at the improvement of the working efficiency in the harvesting operation | work which harvests the leek 2 cultivated by the some ridge 3 in the agricultural field for every ridge 3. Therefore, an example of the procedure of a conventional general leek harvesting operation by the leek harvesting machine 1 will be described in explaining the soil discharging unit 210.

  According to the harvesting operation for harvesting the green onion 2 while cutting both shoulders of the ridge 3 with the left and right crushed devices 80, for example, in the case of the field end, the first ridge 3A shown in FIG. In addition, the intercostal groove 3a on one side (right side in the figure) may be shallower than the intercostal groove 3a on the other side (left side in the figure), and the depths of the intercostal grooves 3a on the left and right sides may be different from each other. When the depth of the left and right intercostal grooves 3a is different from each other, in the leek harvesting machine 1 that harvests the green onion 2 with the crawler portion 7 positioned in the left and right intercostal grooves 3a, the body tilts and normal harvesting work cannot be performed There is.

  For this reason, the harvesting operation of the second rod 3B in which the depths of the left and right ribs 3a are aligned is performed before the harvesting operation of the first rod 3A. By performing the harvesting operation of the second row of ridges 3B, as shown in FIG. 17 (b), the intercostal grooves 3a are filled with the soil broken by the left and right crushing devices 80, and so on. The depth of the intercostal groove 3a (the left side in FIG. 17 (a)) becomes shallower. Thereby, the depth of the intercostal groove | channel 3a of the both sides of 3 A of 1st ribs can be match | combined. After the second row 3B, the first row 3A is harvested.

  In the state after the harvesting operation of the first ridge 3A is performed, as shown in FIG. 17C, the soil on the second ridge 3B side (right side in the drawing) of the third ridge 3C. The height is high, and the soil heights on both sides of the third ridge 3C are different from each other. For this reason, before the harvesting operation of the third row of ridges 3C, the harvesting operation of the fourth row of ridges 3D in which the depths of the left and right intercostal grooves 3a are aligned is performed. As shown in FIG. 17D, the soil height on both sides of the third row ridge 3C is adjusted by performing the harvesting operation of the fourth row ridge 3D, as shown in FIG. 17 (d). be able to. After the fourth ridge 3D, the third ridge 3C is harvested.

  However, according to the harvesting operation performed in the above-described procedure, for example, as shown in FIG. 17 (b), when the leek 2 harvested by the harvesting operation of the second row of straw 3B is carried out from the field, It is necessary to transport the green onion 2 over the harvested cocoon 3 (for example, the first ridge 3A) (see arrow G1). The unharvested cocoon 3 is difficult to get over because the leek 2 on the cocoon 3 is obstructed, so that it takes excessive labor and labor to carry out the leek 2 after harvesting. Moreover, crossing the unharvested ridges 3 may cause damage to the green onions 2 before harvesting.

  Therefore, the leek harvesting machine 1 according to the present embodiment is configured to discharge the soil in front of the crawler unit 7 in advance and align the soil height on both sides of the basket 3 in order to solve the above problems. A soil removal unit 210 is provided. Hereinafter, the earth removal part 210 which concerns on this embodiment is demonstrated concretely.

  As shown in FIG. 18 to FIG. 20, the earth discharging part 210 is provided in front of the crawler part 7. That is, the earth removal part 210 is provided in front of each of the left and right crawler parts 7 and 7. Therefore, the leek harvesting machine 1 according to the present embodiment includes the soil removal sections 210 on both the left and right sides. The left and right earth removing portions 210 and 210 are configured symmetrically. Moreover, the soil removal part 210 is provided behind the soil discharge guide part 160 mentioned above. That is, the soil discharge unit 210 is provided between the crawler unit 7 and the soil discharge guide unit 160 in the front-rear direction.

  The earth removal part 210 has an inclined earth removal surface 210a that is substantially perpendicular to the horizontal plane and is inclined in the front-rear and rear-out directions in the left-right direction of the machine body. Then, as the machine body of the leek harvesting machine 1 advances, the soil removal part 210 removes excess soil in front of the other crawler part 7 according to the depth of the intercostal groove 3a where one crawler part 7 is located. Exclude. The earth removal part 210 has the earth removal board 211 as a member which makes the earth removal surface 210a.

  The earth removal plate 211 is a substantially rectangular plate-like member having the longitudinal direction as a longitudinal direction as a whole. The soil discharge plate 211 is provided so that the front plate surface portion is a soil discharge surface 210a and the soil discharge surface 210a faces the left and right outer sides. That is, the soil discharge surface 210a is inclined so as to go from the left and right outer sides to the left and right inner sides from the rear side to the front side in a plan view. Moreover, the earth removal board 211 is provided so that the earth removal surface 210a may be along a substantially vertical direction.

  The earth discharging plate 211 is located in front of the crawler unit 7 and is provided so as to cover the crawler unit 7 from the front side. That is, the earth removal plate 211 has a dimension in a range that covers substantially the entire width of the crawler unit 7 in a front view with respect to the longitudinal direction (lateral direction) dimension. Therefore, in the left-right direction, the front end edge of the soil discharge plate 211 is located at substantially the same position as the inner end portion of the crawler portion 7, and the rear end edge of the soil discharge plate 211 is substantially the same as the outer end portion of the crawler portion 7. Located in position. However, the horizontal dimension of the earth discharging plate 211 may be larger than the width of the crawler unit 7 and is set according to the soil quality of the farm field.

  The earth discharging plate 211 has its lower end edge positioned at a height position substantially the same as or slightly above the height position of the lower end of the crawler unit 7. A bent portion 211 a that is bent forward along the edge portion is provided at the lower end portion of the earth discharging plate 211. The bent portion 211 a is a portion bent so as to form an obtuse angle with respect to the main body portion of the earth discharging plate 211. Further, the earth discharging plate 211 is provided so as to be positioned below the pipe-shaped case 89 in a side view. The front end of the earth removing plate 211 is positioned below the pipe-shaped case 89. In order to avoid interference with the pipe-shaped case 89, the earth discharging plate 211 has a front-lowering oblique side part.

  The earth discharge plate 211 is supported by the earth discharge plate support unit 230 with respect to the transfer unit support frame unit 72 erected at the front portion of the transfer unit 26 and to which the lower end portion of the rear guide frame unit 74 is fixed. Yes. The earth removal plate support part 230 is extended from the front end part of the transport part support frame part 72 over the upper side of the pipe-like case 89 to the left and right outer sides.

  The soil removal unit 210 is configured such that the relative height position with respect to the crawler unit 7 can be adjusted by the support structure of the soil discharge plate 211 by the soil discharge plate support unit 230. Moreover, the earth removal part 210 is comprised by the support structure of the earth removal board 211 by the earth removal board support part 230 so that inclination | tilt angle (alpha) 1 with respect to the front-back direction of the body of the earth removal surface 210a in planar view can be adjusted. Hereinafter, the configuration of the earth discharge plate support 230 will be described.

  The earth discharge plate support part 230 is supported by the support base arm 231, the elevating support body 232 that supports the earth removal plate 211 while being supported by the support base arm 231, and the elevating support body 232. And a rotation support bar 233 fixed to the earth discharging plate 211. Further, the earth discharge plate support part 230 has an inclination adjustment mechanism part 240 for adjusting the inclination of the earth discharge plate 211 via the rotation support bar 233.

  The support base arm 231 protrudes horizontally from the front end of the transport unit support frame 72 to the left and right outer sides. The base portion of the support base arm 231 is fixed together with the lower end portion of the rear guide frame portion 74 together with the outer side surface portion of the front end portion of the transport portion support frame portion 72. Specifically, the support base arm 231 is fixed to a substantially rectangular plate-shaped mounting plate 72 b provided at the front end of the transport unit support frame 72. The support base arm 231 is provided with a support cylinder portion 231a that is a cylindrical portion having both ends opened with the vertical direction as the cylinder axis direction. The supporting cylinder portion 231 a is provided at a position above the pipe-shaped case 89 and at a position on the left and right outside of the pipe-shaped case 89.

  The elevating support 232 includes a support bar portion 236 that is slidably supported by the support cylinder portion 231a in a state of being inserted into the support cylinder portion 231a, and a lower support arm provided at a lower end portion of the support rod portion 236. Part 237 and a rotation support cylinder part 238 provided at one end of the lower support arm part 237.

  The support bar portion 236 is a straight bar-shaped portion, and extends vertically from the support tube portion 231a, that is, with the upper and lower portions extending vertically from the support tube portion 231a, the support tube portion 231a It is supported so as to be movable in the axial direction. The support rod part 236 is fixed to the support cylinder part 231a by being pressed by a set bolt 239 screwed into the support cylinder part 231a from the left and right outside along the radial direction. That is, when the set bolt 239 is screwed and the support rod portion 236 is pressed, the support rod portion 236 cannot be moved in the vertical direction and relatively rotated with respect to the support cylinder portion 231a. In the support bar portion 236, a flat portion 236a for receiving the pressing force of the set bolt 239 is provided on a part of the outer peripheral surface thereof over the entire longitudinal direction.

  The lower support arm portion 237 is a substantially rectangular plate-like portion whose longitudinal direction is the left-right direction when viewed from the side, and is provided so that the longitudinal direction is substantially along the front-rear direction. The lower support arm portion 237 has a configuration in which two plate members that are overlapped with each other are fixed to each other at two locations in the longitudinal direction by bolts and nuts. The lower support arm portion 237 is provided on the left and right outer sides of the lower end portion of the support bar portion 236. The lower support arm portion 237 is fixed to the support rod portion 236 by welding or the like with the back surface of the central portion in the longitudinal direction in contact with the flat portion 236a of the support rod portion 236. That is, the lower support arm portion 237 is fixed to the lower end portion of the support rod portion 236 so as to form a substantially inverted “T” shape together with the support rod portion 236. A rotation support cylinder 238 is provided at the rear end of the lower support arm 237.

  The rotation support cylinder portion 238 is a cylindrical portion having both ends opened with the vertical direction as the cylinder axis direction. The rotation support cylinder portion 238 supports the rotation support rod 233 so that the rotation support rod 233 can be rotated.

  The rotation support bar 233 is a straight bar-like portion, and is supported so as to be relatively rotatable with respect to the rotation support cylinder 238 in a state of vertically passing through the rotation support cylinder 238. Further, the rotation support rod 233 is supported with respect to the rotation support cylinder portion 238 in a state in which relative movement is restricted in the vertical direction (axial direction), that is, in a positioned state. The vertical movement of the rotation support bar 233 relative to the rotation support cylinder 238 is restricted by a lower locking ring 233 a and an upper locking cylinder 233 b that are integrally provided on the rotation support bar 233.

  The lower locking ring portion 233a is an annular protrusion that forms an enlarged portion of substantially the same diameter as the rotation support cylinder portion 238 in the middle portion in the longitudinal direction of the rotation support rod 233, and the rotation support cylinder portion 238. It becomes the latching | locking part (contact part) with respect to the lower end surface. The lower locking ring portion 233a is provided by, for example, fitting an annular member to the rotation support rod 233 and fixing it to the outer peripheral surface of the rotation support rod 233.

  The upper locking cylinder portion 233b is a cylindrical protrusion that forms an enlarged portion having the same diameter as the rotation support cylinder portion 238 at the upper end portion of the rotation support rod 233 protruding upward from the rotation support cylinder portion 238. It becomes a latching part (contact part) with respect to the upper end surface of the rotation support cylinder part 238. The upper locking cylinder portion 233b is provided by fitting a cylindrical member to the rotation support rod 233 and fixing it with a fixture 233c.

  As described above, the rotation support rod 233 is axially disposed with respect to the rotation support cylinder 238 in such a manner that the rotation support cylinder 238 is sandwiched from above and below by the lower engagement ring portion 233a and the upper engagement cylinder 233b. Is positioned about.

  The lower part of the rotation support bar 233 extends downward from the rotation support cylinder part 238, and the earth discharging plate 211 is fixed to the lower extension part of the rotation support bar 233. The rotation support bar 233 is fixed by welding or the like to the rear side of the earth discharging plate 211 and at a position behind the middle part of the earth discharging plate 211 in the longitudinal direction. As the pivot support bar 233 rotates, the earth removal plate 211 rotates integrally with the pivot support bar 233. In other words, the earth discharging plate 211 is rotatably provided with the central axis of the rotation support bar 233 along the vertical direction as the rotation center line. The rotation of the earth removing plate 211 changes the inclination of the earth removing plate 211 (inclination angle with respect to the front-rear direction).

  The inclination adjustment mechanism 240 is a configuration for adjusting the inclination of the earth discharging plate 211 via a rotation support bar 233 provided integrally with the earth discharging plate 211. In other words, the inclination adjusting mechanism 240 adjusts the rotation angle of the rotation support bar 233 supported by the rotation support cylinder 238, so that the earth discharging plate 211 fixed to the lower part of the rotation support bar 233. Adjust the tilt.

  The tilt adjusting mechanism 240 is provided with an engaged plate 241 provided on the rotation support cylinder 238, an engagement piece support arm 242 that rotates integrally with the rotation support rod 233, and the engagement piece support arm 242. It has an engagement piece 243 supported and engaged with the engaged plate 241, and an operation bar 244 for operating the engagement piece 243.

  The engaged plate 241 is a substantially fan-shaped plate member, and the side corresponding to the arc is the rear side in a state where the upper end portion of the rotation support cylinder portion 238 is vertically penetrated through the central angle portion of the sector shape. It is provided horizontally toward The engaged plate 241 is fixed to the rotation support cylinder 238. The engaged plate 241 is provided in a state where the central angle of the substantially fan-shaped outer shape is an acute angle (for example, about 50 °), and one side (the left and right inner sides) corresponding to the radius is substantially along the front-rear direction in plan view. It has been. Accordingly, the engaged plate 241 extends in a fan shape on the left and right outer sides with reference to the left and right inner sides substantially along the front-rear direction, and the other side (the left and right outer sides) corresponding to the radius is the rear side (right side in FIG. 18). ) To the front side (the same left side) and is inclined in the direction from the outer side (the lower side) to the inner side (the same upper side).

  A plurality of notches 241a are provided at predetermined intervals in the circumferential direction of the arc at the rear edge of the engaged plate 241, that is, the side corresponding to the sectoral arc. The plurality of notches 241a are engaged portions that selectively receive the engagement pieces 243. In the present embodiment, the notches 241a are provided at five locations at an angular interval of about 13 °.

  The engagement piece support arm 242 extends horizontally from the outer peripheral surface of the upper locking cylinder portion 233 b at the upper end portion of the rotation support rod 233. That is, the engagement piece support arm 242 is extended above the engaged plate 241 so as to be along the upper surface of the engaged plate 241. The engagement piece support arm 242 rotates integrally with the rotation support bar 233. Further, the engagement piece support arm 242 has a substantially elongated rectangular outer shape with the extending direction as a longitudinal direction in a side view, and is along the radial direction of the substantially fan-shaped engaged plate 241 in a plan view. It is extended. The engagement piece 243 is supported at the tip of the engagement piece support arm 242.

  The engagement piece 243 is a plate member having a predetermined polygonal shape, and a rotation axis is set in a direction orthogonal to the extending direction of the engagement piece support arm 242 in a plan view at the distal end portion of the engagement piece support arm 242. The direction is supported so as to be rotatable with respect to the engagement piece support arm 242. The engagement piece 243 is rotatably supported by a shaft support member 245 made of a bolt, a nut, or the like that penetrates the engagement piece support arm 242.

  In the present embodiment, the engagement piece support arm 242 is constituted by a pair of rectangular plate members 242a having a side view outer shape. The engagement piece 243 is rotatably supported with the plate thickness direction of each plate member as a rotation axis direction in a state of being sandwiched between a pair of plate members 242a constituting the engagement piece support arm 242.

  The engaging piece 243 is engaged with the engaged plate 241 by fitting a downward projecting portion from the lower edge of the engaging piece support arm 242 into any notch 241 a of the engaged plate 241. . For this reason, the notch part 241a is a recessed part along a substantially rectangular shape having substantially the same width as the plate thickness of the engaging piece 243. When the engagement piece 243 is engaged with the engaged plate 241, horizontal rotation of the engagement piece support arm 242 using the rotation support rod 233 as a rotation axis is restricted. As a result, the rotation of the earth removal plate 211 is restricted via the rotation support bar 233, that is, the angle of the earth removal plate 211 is fixed.

  The engagement piece 243 is in contact with the engaged plate 241 in a state of being engaged with the engaged plate 241, and the rotation in the direction of moving the rear end side downward (see arrow H1 in FIG. 19) is restricted. It becomes a state. Therefore, the engaging piece 243 is moved from the notch 241a by rotating in the direction in which the rear end side is moved upward from the state in which the engaging piece 243 is engaged with the engaged plate 241 (see arrow H2 in FIG. 19). The engagement piece 243 is disengaged from the engaged plate 241 by disengagement. When the engagement of the engagement piece 243 with the engaged plate 241 is released, the state in which the engagement piece support arm 242 can be rotated horizontally, that is, the inclination angle of the earth removal plate 211 via the rotation support bar 233 is increased. It becomes a changeable state.

  The operation bar 244 is an operation unit for rotating the engagement piece 243. The operation bar 244 is a straight bar-like member, and is fixed to the upper side of the engagement piece 243 by welding or the like. The operation rod 244 is provided to extend rearward in the engagement piece 243 engaged with the engaged plate 241. That is, the operation rod 244 is a rearward extending portion provided integrally with the engagement piece 243, and is a portion that receives an operation force for rotating the engagement piece 243 around the shaft support member 245.

  Further, regarding the rotation operation of the engagement piece 243 supported by the shaft support member 245, the shaft support member 245 moves the engagement piece 243 in a state where the operation force for rotating the engagement piece 243 is released. It is comprised so that a rotation position can be hold | maintained. Specifically, the shaft support member 245 has a double nut structure including a bolt member 245a passing through the engagement piece support arm 242 and the engagement piece 243, and two nuts 245b screwed into the bolt member 245a. As a result, the support portion of the engagement piece 243 is sandwiched so that the rotation position of the engagement piece 243 can be held in the sandwiching support configuration of the engagement piece 243 by the pair of plate members constituting the engagement piece support arm 242. It is configured to obtain a force (frictional force).

  According to the earth discharge plate support section 230 having the above-described configuration, the vertical support position of the lift support body 232 extended from the machine body is adjusted to the rotation support cylinder section 238 of the lift support body 232. The vertical position of the earth discharging plate 211 supported through the support bar 233 is adjusted (see FIG. 19, arrow L1). That is, by adjusting the vertical position of the lifting support body 232, the height position of the earth discharging plate 211 that moves up and down integrally with the lifting support body 232 is adjusted.

  When adjusting the vertical position of the elevating support 232, loosening the set bolt 239 allows the support bar 236 to move up and down with respect to the support cylinder 231a. In such a state, the vertical position of the support bar 236, that is, the vertical position of the lifting support 232 is adjusted to a desired position, and the support bolt 239 is tightened so that the support bar 236 is relative to the rotating support cylinder 238. It becomes a fixed state. In this way, the relative height position of the earth discharging plate 211 with respect to the crawler unit 7 having a constant height position with respect to the machine body is adjusted.

  Further, according to the earthing plate support portion 230, the rotation support bar 233 integrated with the engagement piece support arm 242 that supports the engagement piece 243 is selected by selecting the engagement position of the engagement piece 243 with the engaged plate 241. The inclination angle of the earth discharging plate 211 supported by the is adjusted. That is, the rotation position of the engagement piece support arm 242 and the rotation support bar 233 is changed by the cutout portion 241a into which the engagement piece 243 is fitted among the plurality of cutout portions 241a, and rotates integrally therewith. The angle of the earth removing plate 211 is adjusted.

  When adjusting the rotation position of the engagement piece support arm 242, the operation piece 243 is rotated in the disengagement direction (see arrow H2 in FIG. 19) by operating the operation rod 244, and the engagement piece 243 is covered. By disengaging the engagement plate 241, the engagement piece support arm 242 can be rotated. In this state, the rotation position of the engagement piece support arm 242, that is, the rotation position of the rotation support rod 233 is adjusted, and the engagement piece 243 is fitted into any one of the notches 241 a, thereby 243 is engaged with the engaged plate 241, and the engagement piece support arm 242 is fixed to the engaged plate 241. In this way, the inclination angle α1 of the soil removal surface 210a of the soil removal unit 210 in the plan view with respect to the front-rear direction of the machine body is adjusted.

  Regarding the angle adjustment of the earth removing plate 211, in the present embodiment, the notched portions 241a are provided at five positions at an angle interval of about 13 ° in the engaged plate 241 as described above. Adjustment is possible. That is, by fitting the engagement piece 243 to the innermost notch 241a among the five notches 241a, the inclination angle α1 becomes the smallest, and the engagement piece 243 is fitted to the outermost notch 241a. By combining, the inclination angle α1 becomes the largest. The maximum value of the inclination angle α1 is about 52 °. In the state where the engagement piece 243 is engaged with the innermost notch 241a, the inclination angle α1 is about 0 °, and the earth removal plate 211 is in a state substantially along the front-rear direction (two-dot chain line in FIG. 18). The earth discharge plate 211 shown in FIG. Such a state is used as a state where the earth discharging plate 211 is not operated, that is, an unused state of the earth discharging plate 211.

  Next, the structure of the earth discharging plate 211 will be described. The earth discharging plate 211 has a substantially rectangular plate-like base plate member 251 and a substantially rectangular plate-like adjustment plate member 252 that overlaps the front side of the base plate member 251, and a two-layer structure of these plate members It has become.

  The base plate member 251 is a plate member that constitutes a base portion of the earth discharging plate 211 and is a portion that receives the fixing of the rotation support bar 233. That is, the rotation support bar 233 is fixed to the back side of the base plate member 251.

  The adjustment plate member 252 has a vertical dimension substantially the same as that of the base plate member 251. Each of the base plate member 251 and the adjustment plate member 252 is provided with a bent portion constituting a bent portion 211a of the earth discharging plate 211 along the lower edge portion of each member.

  The adjustment plate member 252 is fixed to the base plate member 251 at a plurality of locations (three locations in the present embodiment) by fixing bolts 253. The fixing bolt 253 passes through a bolt hole formed in each of the base plate member 251 and the adjustment plate member 252.

  The adjustment plate member 252 is provided with a plurality of bolt holes 252a for fixing with the fixing bolts 253 so that the fixing position of the adjustment plate member 252 with respect to the base plate member 251 can be adjusted. Specifically, in the adjustment plate member 252, three bolt holes 252 a are provided along the longitudinal direction of the earth discharging plate 211 at predetermined intervals with respect to the fixing positions by the fixing bolts 253. At each of the three fixing positions, one of the three bolt holes 252a is used, and the adjustment plate member 252 is fixed to the base plate member 251 by the three fixing bolts 253. .

  In such a structure, the fixing position of the adjustment plate member 252 in the lateral direction relative to the base plate member 251 is determined by the bolt hole 252a used when the adjustment plate member 252 is fixed to the base plate member 251 by the fixing bolt 253. Adjusted. The size of the overlapping portion of the adjustment plate member 252 with respect to the base plate member 251 changes depending on the fixing position, and the longitudinal dimension of the earth discharging plate 211 changes. That is, the smaller the size of the overlapping portion of the adjustment plate member 252 with respect to the base plate member 251, the larger the horizontal dimension of the soil discharging plate 211, and the larger the size of the overlapping portion, The lateral dimension is smaller. And according to the arrangement interval of the several bolt hole 252a, the dimension of the horizontal direction of the earth discharging board 211 is adjusted in steps.

  In this manner, the earth discharging plate 211 is configured such that the lateral dimension can be adjusted. In this embodiment, the lateral dimension of the earth discharging plate 211 can be adjusted stepwise by adjusting the fixing position with the fixing bolt 253. For example, the adjusting plate member 252 with respect to the base plate member 251 is configured. A configuration in which the horizontal dimension of the earth discharging plate 211 is adjusted steplessly by the slide structure or the like may be adopted.

  According to the leek harvesting machine 1 according to the present embodiment having the above-described configuration, the following operational effects can be obtained.

  That is, the leek harvesting machine 1 according to this embodiment is configured so that the soil discharged from the crushing device 80 generated by the crushing by the crushing rotor 81 is discharged from the crushing device 80 to the left and right outside of the machine. A discharge soil guide 160 is provided for guiding the user. According to such a configuration, in the configuration including the crushing device 30 that crushes the shoulder portion of the ridge 3 when the leek 2 is dug up, the soil generated by the crushing can be smoothly discharged, and the crushing device 80 Stagnation and accumulation of soil can be prevented.

  This eliminates excess soil in the crushing device 80 and prevents the soil from adhering to the leek 2, so that the soil adhering to the leek 2 is excessively brought into the transport unit 26. Thus, it is possible to prevent malfunctions such as a conveyance failure of the leek 2 that occurs. Moreover, soil can be prevented from entering the branch portion of the leaf part 2b of the green onion 2, and the burden on post-treatment such as preparation after harvesting the green onion 2 can be reduced.

  Specifically, according to the discharged soil guide unit 160 according to the present embodiment, as shown in FIG. 21, the soil S generated by the collapse by the collapse rotor 81 that rotates so as to cut up is, for example, a rotor. The paper is discharged from the front of the rotor cover which is a non-covered portion by the cover 100 and from the lower side of the rotor cover 100 on the left and right outer sides. In FIG. 21, the traveling direction of the body of the leek harvester 1 is the direction of the arrow J1. In such a discharge mode of the soil S, for example, the soil discharged to the front of the rotor cover 100 flows relatively rearward as the airframe advances. Thus, the soil S flowing backward prevents the soil S from being discharged to the outer side of the rotor cover 100, and causes the soil to peel off from the rotor cover 100 to deteriorate.

  Therefore, according to the configuration including the discharged soil guide unit 160 as in the leek harvester 1 according to the present embodiment, the flow of the soil S discharged from the front and rear of the crushing rotor 81 can be divided, and the soil The flow of S can be made smooth. Specifically, as shown in FIG. 21, the soil S discharged at the front portion of the crushing rotor 81 is guided outward along the guide surface 160 a of the soil discharge guide plate 161. Therefore, the flow of the soil S discharged from the crushing device 80 is a flow from the front side of the crushing rotor 81 from the front side of the soil discharge guide plate 161, that is, from the front side of the crushing rotor 81 (arrow K1). 161 is divided into a flow (arrow K2) associated with the forward movement of the airframe behind 161.

  As described above, according to the discharged soil guide unit 160, the flow of the soil can be divided into the front and the back, so that the rotor is discharged by the soil that is discharged to the front of the rotor cover 100 and flows relatively rearward as the fuselage advances. It is prevented that the discharge of the soil to the outer side of the cover 100 is hindered, and the removal of the soil (soil removal) can be improved. Thereby, the accumulation of the soil on the crushing rotor 81 can be improved, and the soil discharged from the crushing device 80 can be smoothly discharged to the outside of the crust 3.

  Moreover, the discharge soil guide part 160 which concerns on this embodiment is comprised by the soil discharge guide plate 161 which makes the front plate | board surface the guide surface 160a. According to such a configuration, the discharged soil guide portion 160 can be easily configured by the plate-like member, and therefore the discharged soil guide portion 160 can be realized easily and inexpensively.

  Further, in the discharge soil guide section 160 according to the present embodiment, the front side of the drive case 86 is provided on the left and right outer sides of the crushing rotor 81 and houses a driving mechanism for transmitting a driving force to the crushing rotor 81. A discharge soil guide 160 is provided. According to such a configuration, the soil discharged from the front side of the collapsing rotor 81 can be guided outward in front of the drive case 86 by the discharged soil guide portion 160.

  Thereby, a lump of soil or the like is prevented from directly hitting the drive case 86, and wear of the drive case 86 due to soil interference can be prevented. That is, the drive case 86 can be guarded from the soil contact with the advance of the machine body by the discharged soil guide section 160. In particular, according to the configuration in which the earth discharge guide plate 161 constituting the earth discharge guide portion 160 is disposed immediately in front of the drive case 86 and the entire drive case 86 is covered by the earth discharge guide plate 161 from the front side, the drive case 86. The guard action can be effectively obtained. Further, according to the configuration in which the discharge soil guide part 160 is provided in front of the drive case 86, the resistance of the soil received by the drive case 86 when the machine body travels can be offset, so the machine body by providing the discharge soil guide part 160 Increase in soil resistance when traveling can be suppressed as much as possible.

  Further, the soil discharge guide plate 161 according to the present embodiment is configured such that the vertical and horizontal dimensions can be adjusted by the two-layer structure of the base plate member 176 and the adjustment plate member 177. According to such a configuration, the size of the soil removal guide plate 161 can be changed according to the size of the drive case 86, the width of the intercostal groove 3a, the soil quality of the field, and the like, so the field where the green onions 2 are grown. Depending on the situation or the like, it is possible to reliably obtain the guide action of the discharged soil guide section 160 to the outside of the discharged soil and the guard action of the drive case 86.

  Further, the soil discharge guide plate 161 according to the present embodiment is provided so as to be capable of adjusting the angle with the direction along the substantially vertical direction as the rotation axis direction by the support structure by the two support arms 162. According to such a configuration, the inclination angle of the soil discharge guide plate 161 can be changed according to the width of the intercostal groove 3a, the soil quality of the field, etc., so according to the state of the field where the green onions 2 are cultivated. Thus, while taking into account the resistance of the soil when the aircraft is moving, the guide action of the discharged soil guide unit 160 to the outside of the discharged soil can be reliably obtained.

  In addition, the crushing device 80 according to the present embodiment includes a rotor cover 100 for preventing soil scattering that covers the crushing rotor 81. According to such a configuration, the soil discharge caused by the collapse by the collapsed rotor 81 can be prevented by providing the discharged soil guide portion 160 corresponding to the flow of the soil discharge due to the shape of the rotor cover 100. In addition, the soil removability can be efficiently improved according to the shape of the rotor cover 100. In the present embodiment, the earth discharge guide plate 161 is provided in such a manner that the left and right inner end portions are positioned in the front portion of the rotor cover 100 and most of the earth discharge guide plate 161 projects from the rotor cover 100 to the left and right outer sides. Such an arrangement makes it possible to efficiently guide the soil generated at the front portion of the crumbling rotor 81 outward.

  Further, the rotor cover 100 according to the present embodiment includes a base cover element 180, and a front rotation cover element 181 and a rear rotation cover element 182 that are provided to be rotatable in the front and rear directions. According to such a configuration, the soil discharge path from the rotor cover 100 according to the amount and soil quality of the soil caused by the collapse by adjusting the rotation angle of the front rotation cover element 181 and the rear rotation cover element 182. Can be adjusted. For example, when a large amount of soil is generated due to the collapse, the front rotation cover element 181 or the rear rotation cover element 182 is rotated in the opening direction to secure a large soil discharge path from the rotor cover 100. The soil can be discharged smoothly. With such a structure for adjusting the size of the soil discharge path, the soil can be smoothly discharged from the rotor cover 100, and the soil guiding action by the discharged soil guide unit 160 can be obtained effectively.

  Further, in the rotor cover 100 according to the present embodiment, each cover element of the front rotation cover element 181 and the rear rotation cover element 182 is configured to be partially opened and closed by a rubber plate structure (FIG. 14, FIG. 15). According to such a configuration, in addition to the adjustment of the size of the soil discharge path by the rotation of the front rotation cover element 181 and the rear rotation cover element 182 with respect to the base cover element 180, the portion of each cover element of the rotor cover 100 That is, it is possible to adjust the size of the opening of the soil discharge path in each part around the rotor cover 100. This makes it possible to finely control the soil discharge path from the rotor cover 100 according to the amount of soil generated by the collapse, the soil quality, the width of the inter-groove groove 3a, and the like, and the soil discharged from within the rotor cover 100. Can be made smooth, and the soil guiding action by the discharged soil guiding section 160 can be effectively obtained. For example, when the width of the inter-groove groove 3a is relatively narrow, the outer side surface portions of the front rotation cover element 181 and the rear rotation cover element 182 are closed, and the adjacent green 2 of the unharvested ridge 3 It is possible to prevent soil that has been scattered due to collapse.

  Furthermore, the rotor cover 100 according to the present embodiment is provided so as to be pivotable back and forth as a whole (see FIG. 16). According to such a configuration, the size of the soil discharge path is adjusted by the rotation of the front rotation cover element 181 and the rear rotation cover element 182, and the size of the soil discharge path by partial opening and closing of each cover element. In addition to the adjustment of the height, it is possible to adjust the size of the open portions on the rear side and the front side of the rotor cover 100. Accordingly, it is possible to more finely control the soil discharge path from the rotor cover 100 according to the amount of soil generated by crushing, the soil quality, the width of the inter-groove groove 3a, and the like. In addition, by adjusting the size of the open portion of the front side of the rotor cover 100, the soil generated by the crushing by the crushing rotor 81 that rotates so as to be up-cut is applied to the uncut leek 2 in front of the crushing device 80. It can prevent falling down.

  Further, according to the overall rotation configuration of the rotor cover 100, the inclination angle of the main guide bar body 106 and the sub guide bar body 107 attached to the rotor cover 100 can be adjusted. Thereby, the inclination angle of the main guide rod body 106 and the sub-guide rod body 107 can be adjusted according to the state of dead leaves of the leek 2 cultivated on the straw 3, and the guide action by these guide rod bodies can be adjusted. It is possible to reliably obtain, and it is possible to reliably prevent dead leaves of the leek 2 spreading to the left and right from collapsing and interfering with the rotor 81.

  Moreover, the leek harvesting machine 1 according to the present embodiment includes a soil removal unit 210 that removes excess soil in front of the crawler unit 7 in front of the crawler unit 7 as the machine body advances. According to such a configuration, since the excess soil in front of the crawler unit 7 can be scraped and eliminated by the soil removal unit 210, regardless of the difference in the depth of the inter-groove grooves 3a on both sides of the cage 3, It is possible to stably carry out the harvesting work of the green onions 2 cultivated on the straw 3 in a state where the machine body is stabilized.

  Thus, for example, as shown in FIG. 17 (a), even in a situation where the depths of the intercostal grooves 3a on the left and right sides of the first ridge 3A are different from each other, harvesting operations are performed in an order that is not in the order of the ridges described above. There is no need to carry out, and the leek 2 can be harvested in the order of the lines, that is, in the order of the first, second, third and fourth. Therefore, when carrying out the harvested green onion 2 from the field, it is no longer necessary to transport the green onion 2 beyond the unharvested straw 3, and the burden of carrying out the green onion 2 after harvesting can be reduced. Can be improved. Moreover, since it is not necessary to go over the unharvested pods 3 when carrying out the onions 2 from the field, it is possible to prevent the leeks 2 before harvesting from being damaged by crossing the unharvested pods 3.

  For example, as shown in FIG. 22 (a), the intercostal groove 3a on one side (left side in the figure) of the brim 3 is shallower than the intercostal groove 3a on the other side (right side in the figure), and the depth of the intercostal groove 3a on both left and right sides May be different from each other. In such a case, with the configuration provided with the soil removal portion 210, the soil in the shallower intercostal groove 3a is removed by the soil removal portion 210. That is, the soil removal part 210 causes an extra front part of the crawler part 7 corresponding to the shallower crevice groove 3a according to the depth of the crevice groove 3a where the crawler part 7 corresponding to the deeper crevice groove 3a is located. Soil is removed by moving to the left and right outside of the aircraft.

  Specifically, as shown in FIG. 22 (b), in the leek harvesting machine 1 that harvests the leek 2 by positioning the crawler portion 7 in the left and right intercostal grooves 3 a, the shallowness of the left and right soil discharging portions 210 is shallow. The earth removal part 210A provided in front of the crawler part 7 corresponding to the inter-groove groove 3a is operated. That is, the earth removing plate 211 constituting the earth removing unit 210A is inclined with respect to the front-rear direction, and the earth in front of the crawler unit 7 is shaved by the earth removing surface 210a of the earth removing plate 211 as the aircraft advances. However, the soil in front of the crawler unit 7 is removed. On the other hand, among the left and right earth removal parts 210, the earth removal part 210B provided in front of the crawler part 7 corresponding to the deeper intercostal groove 3a is in an unused state along the front-rear direction. In addition, FIG.22 (b) is the figure seen from the front side of the leek harvester 1. FIG. Moreover, in FIG.22 (b), the position of the bottom of the gap | interval groove | channel 3a of the state before the earth discharging board 211 acts is shown with the dashed-two dotted line.

  Here, the height of the earth removing plate 211 of the earth removing portion 210A to be applied to the soil is such that the height position of the lower edge portion of the earth removing plate 211 is the height position of the bottom portion of the deep intercostal groove 3a. The lower edge of the earth discharging plate 211 is set to a position that is, for example, about 20 mm higher than the bottom of the deep intercostal groove 3a. Thereby, the earth removal board 211 acts, and the depth of the shallower intercostal groove 3a becomes substantially the same as the depth of the deeper intercostal groove 3a.

  By using the soil removal part 210 in this way, the soil on the bottom side of the shallower intercostal groove 3a can be removed by scraping with the soil removal plate 211 toward the outer side of the reed, so The depth of the groove 3a can be adjusted. Thereby, since the left and right crawler parts 7 pass the ground of the same height, the horizontal state of the body can be obtained. Thereby, irrespective of the difference in the depth of the intercostal groove 3a on both sides of the ridge 3, the harvesting operation of the green onion 2 can be performed stably while maintaining the horizontal state of the machine body. In addition to enabling the stable harvesting operation of the green onion 2, the present embodiment provides an effect of preventing soil stagnation and accumulation in the crushing device 80 by the discharged soil guide unit 160 as described above. According to the leek harvesting machine 1, it is possible to perform a good harvesting operation for the leek 2.

  Moreover, in a relatively large harvesting machine, there is a configuration equipped with a horizontal control device for keeping the machine body horizontal, but in a relatively small harvesting machine like the leek harvesting machine 1 according to this embodiment, Providing a horizontal control device is not practical in terms of structure and cost. Then, according to the structure provided with the earth removal part 210 like the leek harvester 1 which concerns on this embodiment, a machine body can be maintained at a horizontal state irrespective of a horizontal control apparatus, and stable leek 2 Can be harvested.

  Moreover, the earth removal part 210 which concerns on this embodiment is comprised so that adjustment of an up-down position is possible. According to such a configuration, by adjusting the height of the earth discharging plate 211, it is possible to delicately control the horizontal state of the machine body according to the depth of the intercostal groove 3a, the soil quality, and the like.

  Moreover, the earth removal part 210 which concerns on this embodiment is comprised so that adjustment of the inclination angle with respect to the front-back direction is possible. According to such a configuration, by adjusting the inclination angle of the earth discharging plate 211, it is possible to adjust the resistance when the aircraft moves forward in the left and right earth discharging plates 211 according to the width and soil quality of the intercostal groove 3a. The straightness of the aircraft can be improved. Note that, in the usage example of the soil removal portion 210 shown in FIG. 22B, only the left and right soil removal portions 210 are operated, but both the left and right soil discharge portions 210 may be operated.

  Further, the earth discharging plate 211 according to the present embodiment is configured such that the lateral dimension can be adjusted by the two-layer structure of the base plate member 251 and the adjustment plate member 252. According to such a structure, since the horizontal dimension of the soil removal board 211 can be changed according to the width of the intercostal groove 3a, the soil quality of the field, etc., the situation of the field where the green onions 2 are cultivated Accordingly, the soil discharging action by the soil discharging unit 210 can be reliably obtained.

  As described above, the leek harvesting machine according to the present invention described using the embodiments is not limited to the above-described embodiments, and various modes can be adopted within the scope of the gist of the present invention.

  In the embodiment described above, the discharged soil guide unit 160 is configured by the discharged soil guide plate 161 having one plate surface as the guide surface 160a, but the configuration of the discharged soil guide unit 160 is not limited to this embodiment. The structure of the discharged soil guide unit according to the present invention is not particularly limited as long as it guides the soil generated by the collapse by the collapse rotor 81 and discharged from the collapse device 80 to the left and right outer sides of the machine body. As the discharge soil guide unit according to the present invention, in addition to the soil discharge guide plate 161, for example, a rotary type that guides the soil discharged from the crushing device 80 to the outside of the machine body by the rotational action of the rotor that rotationally drives. It may be configured.

  Moreover, in the embodiment mentioned above, although the earth removal part 210 is comprised by the earth removal board 211 which uses one board surface as the earth removal surface 210a, the structure of the earth removal part 210 is not limited to this embodiment. As the soil removal unit according to the present invention, provided in front of the crawler unit, has an inclined soil discharge surface, and eliminates excess soil in front of the crawler unit as the aircraft advances. The configuration is not particularly limited.

  In the above-described embodiment, the earth removal unit 210 is provided in front of the left and right crawler units 7, 7, but depending on the work mode in the field, the right or left crawler unit 7 may be provided as necessary. It may be provided only forward.

DESCRIPTION OF SYMBOLS 1 Green onion harvester 2 Green onion 3 畝 3a Gutter groove 4 Traveling machine body 7 Crawler part 25 Digging part 26 Conveying part 80 Crushing device 81 Crushing rotor 85 Rotor rotating shaft 86 Drive case 100 Rotor cover 160 Discharge soil guide part 160a Guide surface 180 Base cover element 181 Front rotation cover element 182 Rear rotation cover element 210 Earth removal portion 210a Earth removal surface 211 Earth removal plate 230 Earth removal plate support portion 240 Inclination adjustment mechanism portion

Claims (8)

A leek harvesting machine that has a self-propelled traveling machine, digs up the leek from the straw while harvesting it, and harvests it.
A digging part that digs green onions from the firewood,
A transport unit for transporting the leek digged up by the digging unit to the rear; and
A crushing device having a crushing rotor provided on the left and right sides in front of the digging portion, and acting on a heel when the leeks are dug up by the digging portion to break the shoulders on both sides of the heel;
A discharge soil guide portion provided on the left and right outer sides of the fuselage with respect to the collapse rotor, and guiding the soil generated by the collapse by the collapse rotor and discharged from the collapse device to the left and right outer sides of the aircraft. A leek harvesting machine characterized by having. The discharge soil guide section has a guide surface for guiding the soil discharged from the crushing device to the left and right outer sides of the aircraft, and rectifies the flow of the soil as the aircraft advances. The leek harvesting machine according to 1. On the left and right outer sides of the fuselage against the collapsed rotor, there is provided a drive case that houses a drive mechanism for transmitting driving force to the collapsed rotor,
The leek harvesting machine according to claim 1 or 2, wherein the discharge soil guide part is provided in front of the drive case. The said crushing apparatus has a rotor cover which covers at least one part in each of the non-action side with respect to the wrinkle of the said crushing rotor, a rear side, and an upper side. The onion harvester described. The rotor cover includes a base cover element that forms a base portion thereof, and a rotary cover element that is rotatably connected to the base cover element, and the rotor cover is rotated by the rotation of the rotary cover element with respect to the base cover element. The leek harvesting machine according to claim 4, wherein a size of the soil discharge path from the crushing device is changed. The traveling machine body has a pair of left and right crawler parts, each crawler part is positioned in a groove on the side of the heel, and the heel is positioned between the left and right crawler parts.
Provided in front of the crawler part, and having an inclined earth discharge surface that is substantially perpendicular to the horizontal plane and inclined in the front-rear and rear-out directions in the left-right direction of the aircraft, The soil removal part which excludes the excess soil ahead of the other said crawler part according to the depth of the said groove | channel where the said crawler part is located is further provided. The leek harvesting machine according to item 1. The leek harvesting machine according to claim 6, wherein the soil removal part is configured such that a relative height position with respect to the crawler part is adjustable. The leek harvesting machine according to claim 6 or 7, wherein the earth removing part is configured such that an inclination angle of the earth removing surface with respect to a front-rear direction of the machine body in a plan view can be adjusted.