JP7354313B2 - green onion harvester - Google Patents

Description

The present invention relates to a green onion harvesting machine, and more particularly, to a green onion harvesting machine that has a self-propelled traveling body and a harvesting section that digs up and harvests green onions from a ridge in which green onions are cultivated.

Patent Document 1 below includes a digging part for digging up green onions, a conveying part for holding and conveying the green onions dug up by the digging part to the rear, and a ridge breaking part having a ridge breaking rotor for breaking the ridges from both sides, A green onion harvester is disclosed in which a digging section, a conveyance section, and a ridge breaking section are each pivoted at their base ends to a traveling body so that their distal ends can be moved up and down integrally.

JP2016-86643A

However, in the green onion harvester of Patent Document 1, rotor drive shafts for transmitting driving force to the ridge breaking rotor are arranged side by side on both sides of the conveyor of the digging section provided below the conveyance section. It was difficult for mud to be discharged from both the left and right sides of the conveyor, causing problems such as mud accumulating on the conveyor and sticking to the harvested products.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide a green onion harvester that prevents mud from accumulating on the conveyor of the digging section and prevents mud from adhering to harvested products.

The green onion harvesting machine of the present invention is a green onion harvesting machine equipped with a self-propelled traveling body and a harvesting section that digs up and harvests green onions from the ridge where green onions are cultivated,
The harvesting section includes a digging section that digs up green onions, a conveying section that pinches and conveys the green onions dug up by the digging section to the rear, and ridges that are provided on both left and right sides in front of the digging section and that break up the ridges from both sides. and a ridge breaking part having a breaking rotor,
The ridge breaking part is configured to be movable up and down integrally with the digging part and the conveying part, using the rear part of the digging part as a pivot point,
The rotor drive mechanism for transmitting driving force to the ridge breaking rotor includes a first rotor drive shaft extending upward from a drive output shaft provided at the pivot portion and having an axial direction in the left-right direction; The second rotor drive shaft extends forward from the upper end of the drive shaft and is connected to the ridge breaking rotor.

In the present invention, the second rotor drive shaft may extend forward along the conveyance section.

Further, in the present invention, the ridge breaking section includes a rotor cover that covers the upper side and the left and right outer sides of the ridge breaking rotor,
The rotor cover may be supported in a suspended state by a support portion that branches upward from a drive case housing the second rotor drive shaft and extends forward.

Further, in the present invention, the rotor cover includes an upper cover part that is suspended by the support part and covers the upper side of the ridge breaking rotor, and a side that is attached to the upper cover part and covers the left and right outer sides of the ridge breaking rotor. and a side cover part,
The side cover portion may have a changeable attachment angle with respect to the upper cover portion.

According to the present invention, the rotor drive mechanism for transmitting driving force to the ridge breaking rotor extends upward from the drive output shaft at the rear of the excavated portion and then extends forward, so that Since they are not placed on both sides, mud is less likely to accumulate on the conveyor in the digging section, and mud does not adhere to the harvested products.

A perspective view of a green onion harvester according to this embodiment Left side view of the green onion harvester of this embodiment Right side view of the green onion harvester of this embodiment A plan view of the green onion harvesting machine of this embodiment Front view of the green onion harvesting machine of this embodiment Rear view of the green onion harvester of this embodiment A vertical cross-sectional view of a green onion harvester according to this embodiment Perspective view of scraping section Perspective view of rotor cover Top view of rotor cover

Embodiments of the present invention will be described below with reference to the drawings. A shown in FIGS. 1 to 7 is a green onion harvesting machine according to the present embodiment, FIG. 1 is a perspective view of the green onion harvesting machine A, FIG. 2 is a left side view of the green onion harvesting machine A, and FIG. 3 is a green onion harvesting machine. A right side view, FIG. 4 is a top view of green onion harvester A, FIG. 5 is a front view of green onion harvester A, FIG. 6 is a rear view of green onion harvester A, and FIG. 7 is a longitudinal sectional view of green onion harvester A. It is. The green onion harvesting machine A includes a self-propelled traveling body 1 and a harvesting part 2 that digs up and harvests green onions N from a ridge U in which green onions N are cultivated. In this embodiment, the green onion N is a long green onion having a rhizome part Na and a leaf part Nb. In addition, in the following description, the left side when facing the forward direction of the traveling body 1 is simply called the left side, and similarly, the right side when facing the forward direction is simply called the right side.

[Composition of traveling aircraft]
The traveling body 1 includes a body frame 11 formed in the shape of a three-dimensional frame, and a pair of crawler-type traveling parts 10, 10 disposed on both sides of the body frame 11. An engine 12 is mounted on the rear right side of the fuselage frame 11, located behind and above the right running section 10, and a transmission is installed at the bottom of the fuselage frame 11 to transmit the driving force of the engine 12 to the running sections 10, 10. A case 13 is placed between a pair of left and right running parts 10, 10. The mission case 13 is disposed on the rear right side of the body frame 11, that is, on the right running section 10 side. At the upper right side of the body frame 11, an operating section 14 is provided for steering and changing speeds of the traveling sections 10, 10 and harvesting operations of the harvesting section 2. At the rear end of the body frame 11, a horizontal plate-shaped boarding step section 24 on which a worker rides is provided so as to protrude rearward.

[Composition of Harvesting Department]
The harvesting section 2 includes a pair of left and right ridge breaking sections 60, 60, a digging section 20, a conveying section 21, a scraping section 22, and an attitude changing/aligning section 23 as working sections. The pair of left and right ridge breaking parts 60, 60 break both shoulders of the ridge U to reduce the resistance of the digging part 20 to enter the ridge U. Green onions N are grown in the ridges U whose entry resistance has been reduced in this manner, and the green onions N are dug up by the digging section 20. The conveying section 21 holds the middle part of the green onion leaf Nb dug up by the digging section 20 and conveys the held green onion N toward the rear and upper side in an upright position. The scraping unit 22 scrapes off the clod of soil adhering to the rhizome Na of the green onion N transported by the transport unit 21. The posture change/alignment section 23 inherits the green onions N conveyed in a standing posture from the terminal end of the conveying section 21, and also pinches the middle part of the inherited green onions N, and moves the pinched green onions N outward from the standing posture. While changing the posture and arranging the robot in a forward-leaning position, transport it toward the rear and upper side on the left side. The digging section 20, the conveying section 21, and the scraping section 22, which are each working section, are arranged on the same virtual straight line L extending in the front-rear direction at the front of the traveling machine body 1, and at the rear of these working sections. In addition, the boarding step portion 24 is arranged on the same virtual straight line L.

The digging part 20 pivots the base end of a rectangular frame-shaped support frame 30 formed by extending in the front-back direction on the fuselage frame 11 via a pivot 31 whose axis is oriented in the left-right direction. A digging conveyor 32, which is a so-called bar conveyor, is mounted on the body 30, and a digging blade 33 is attached to the starting end (front end) of the digging conveyor 32 so as to project forward. As shown in FIG. 7, a lifting cylinder 37 that extends and contracts in the front and back direction is installed between a cylinder stay 35 provided on the fuselage frame 11 and an lifting arm 36 that is erected upward from the midpoint of the pivot shaft 31. A continuous piece 39 is interposed between the base end of the lifting arm 36 and the left and right extending pieces 30a of the support frame 30. The digging section 20 can be moved up and down by a lifting cylinder 37, and the conveying section 21 and the scraping section 22 are also configured to be raised and lowered integrally with the digging section 20.

In the digging section 20 configured in this way, when harvesting green onions N, the digging section 20 is appropriately lowered by the lifting cylinder 37, and the digging conveyor 32 is arranged in an inclined posture with a low front and rear height. At the same time, the tip half of the digging blade 33 is arranged close to the field G surface substantially horizontally. In such a state, as the traveling body 1 moves forward, the tip half of the digging blade 33 enters the ridge U in which the green onion N is grown approximately horizontally toward the front, and The green onion N is dug up from directly below the rhizome part Na of the green onion N, and the proximal half of the digging blade 33 transports the green onion N rearward and upward together with the soil clod. Then, the dug up green onion N is transferred rearward and upward while sliding on the upper surface of the proximal half of the digging blade 33, and the leaf part Nb of the green onion N is held by the conveying section 21, which will be described later, and is moved backward and upward. While being transported, the rhizome part Na of the green onion N with the soil clod attached is transferred from the proximal half of the digging blade 33 onto the digging conveyor 32, and is further conveyed rearward and upward by the digging conveyor 32. At this time, the green onions N are transported rearward and upward while maintaining the upright posture cultivated in the ridges U.

The conveyance section 21 is arranged directly above the digging section 20 in parallel with the digging conveyor 32 of the digging section 20 in an inclined manner with a low front and a high rear. The device is conveyed rearward and upward while being held between the two sides. That is, the conveying section 21 is disposed directly above the digging conveyor 32 and facing in parallel via a pair of left and right front and rear support frames 40 and 41. The conveying section 21 is configured by disposing a pair of left and right conveying bodies 42, 42 extending in the front-rear direction. The conveyor 42 is formed by winding a conveyor belt 45 around a driven pulley 43 and a drive pulley 44 that are spaced apart from each other in the front-rear direction. The forward path side portions 45a, 45a of the conveyor belts that are conveyed from the starting end (front end) to the terminal end (rear end) of both the left and right conveying bodies 42, 42 facing each other are in face-to-face contact with each other, The forward path side portions 45a, 45a of the belts sandwich the leaf portion Nb of the green onion N, and the green onion N is conveyed rearward and upward in the sandwiched state.

The left front support frame 40 extends in the vertical direction and is interposed between the left side of the digging conveyor 32 and the front part of the left conveyor 42. Similarly, the right front support frame 40 extends in the vertical direction and is interposed between the right side of the digging conveyor 32 and the front part of the right conveyor 42. As shown in FIG. 7, a pair of left and right drive shaft cases 48, 48 that pivotally support a pair of left and right pulley drive shafts 85, 85 are provided on the left and right sides of the horizontal transmission shaft case that pivotally supports the horizontal transmission shaft 170 of the conveying unit. has been established. The left rear support frame 41 is interposed in a diagonal manner between the rear part of the left carrier 42 and the left front part of the fuselage frame 11. Similarly, the right rear support frame 41 is interposed in a diagonal manner between the rear part of the right carrier 42 and the right front part of the fuselage frame 11. Reference numeral 49 denotes a tension roller that elastically biases the forward path side portion 45a of the conveyor belt.

In the conveyance unit 21 configured in this way, the forward path side portions 45a, 45a of the conveyor belts of the pair of left and right conveyors 42, 42 sandwich the leaf portion Nb of the green onion N, and in the pinched state, the green onion N is rearwardly upwardly moved. Therefore, in cooperation with the digging conveyor 32 of the digging section 20 that supports and transports the rhizome part Na of the green onion N from below, the green onion N is steadily transported rearward and upward in an upright position. be able to.

The scraping section 22 is configured by horizontally mounting a horizontal shaft case 50 extending in the left-right direction on the fuselage frame 11, and extending the chain case 51 from the right side of the horizontal shaft case 50 toward the front and lower side. A shaft case is provided to protrude leftward at the front end, and a rotary body 54 is coaxially attached to the tip of a rotary body support shaft 53 that is mounted in the shaft case. The rotating body 54 is formed of a cylindrical peripheral wall whose axis is oriented in the left-right direction, and left and right end walls that close the left and right end surfaces of the peripheral wall, and the tip of the rotary body support shaft 53 is located at the center of the left and right end walls. It is installed by passing through the section. That is, the rotating body 54 is arranged with its axis directed in a direction perpendicular to the conveying direction of the conveying section 21, and is rotatable about the axis via the rotating body support shaft 53.

As shown in FIG. 8, a large number of scraping protrusions 55 are provided radially on the outer circumferential surface of the peripheral wall of the rotating body 54 at intervals in the circumferential direction and axial direction, and each protrusion 55, the protruding height of each protruding piece 55 is varied so that the tip thereof follows the rhizome Na. In this embodiment, eight protrusions 55 are provided protrudingly at equal intervals in the circumferential direction of the outer peripheral surface of the peripheral wall of the rotating body 54 to form a protrusion unit. Seven sets of these projecting piece units are formed.

Further, detachable scraping auxiliary members 56 are provided on the projecting pieces 55 at both ends in the axial direction. The scraping auxiliary member 56 is fixed to the projecting piece 55 with a bolt or the like. The scraping auxiliary member 56 is made of a rubber plate, and can efficiently scrape off the soil clod adhering to the rhizome Na without damaging the green onion N.

The posture changing/aligning section 23 inherits the green onions N that are conveyed rearward and upward in a standing posture by the conveying section 21 to a position directly behind the conveying section 21, and tilts the inherited green onions N outward from the standing posture. The green onions N are changed to the tilted posture and arranged so as to be aligned, and the green onions N are conveyed toward one side rearward and upward (in the present embodiment, the left side rearward and upward) while changing the posture and aligning.

That is, the attitude change/alignment unit 23 is configured by arranging a pair of left and right transport bodies 80, 80 extending in the front-rear direction so that they are low in the front and high in the rear, and their rear ends face outward to the left. There is. The transfer body 80 is formed by winding a transfer belt 83 around a drive pulley 81 (see FIG. 7) and a driven pulley 82 (see FIG. 6), which are arranged at intervals in the front-rear direction, and are arranged opposite to each other in the left and right directions. The forward path side portions 83a, 83a of the transfer belts that are transferred from the starting end (front end) to the terminal end (rear end) of the two transfer bodies 80, 80 are brought into face-to-face contact with each other. The driving pulleys 81, 81 are arranged with their axes directed in the vertical direction, while the driven pulleys 82, 82 are arranged with their axes inclined in the direction of inclination (for example, 45°) of high left and right. , the forward path side portions 83a, 83a of the transfer belt are brought into surface contact in a torsional manner at their midpoints. The drive pulley 44 of the left transport body 42 and the drive pulley 81 of the left transport body 80 are connected to the upper end and midway of a left pulley drive shaft 85, which is arranged with its axis directed in the vertical direction, as shown in FIG. It is installed coaxially. The drive pulley 44 of the right transport body 42 is interlocked and connected via a chain case to the upper end of a right pulley drive shaft 85 arranged with its axis directed in the vertical direction, and the drive pulley 81 of the right transport body 80 is , is attached to the middle part of the pulley drive shaft 85 on the right side. Then, the attitude changing/aligning unit 23 that has inherited the green onions N from the terminal end of the conveyance unit 21 holds the green onion N in the forward path side portions 83a, 83a of the transfer belt, and also transfers the green onion N in the sandwiched state. They are arranged while changing their posture from a standing posture to a leaning posture, and are conveyed to the rear and upper side on the left side. Reference numeral 87 denotes an auxiliary transfer belt that conveys the green onion N while holding the leaf tip side of the green onion N transferred by the posture change/alignment unit 23 so that it does not sag.

In the posture change/alignment section 23 configured as described above, the conveyance posture of the green onions N can be changed from a standing posture to a tilted posture, so that the green onions N can be sequentially and reliably collected and arranged in the collecting section 25, which will be described later. It can be stored.

A rectangular plate-shaped collecting section 25 for collecting green onions N is disposed at the lower rear position of the posture changing/aligning section 23, and the green onions N whose posture has been changed and arranged by the posture changing/aligning section 23 are collected in the collecting section 25. I am trying to collect it. Then, the front end edge of the collecting section 25 is arranged below the terminal end of the posture changing/aligning section 23, and the green onions N conveyed by the posture changing/aligning section 23 are dropped onto the collecting section 25 and collected. It is stored.

A pair of left and right ridge breaking parts 60, 60, which are part of the harvesting part 2, are arranged in front of the digging part 20. The ridge breaking parts 60, 60 break down both shoulders of the ridge U to reduce the entry resistance of the subsequent digging part 20, thereby allowing the digging part 20 to perform digging work smoothly.

The ridge breaking parts 60, 60 and the conveying part 21 are configured such that their rear ends are pivoted to the traveling body 1 and their front ends are moved up and down. The ridge breaking parts 60, 60 are supported by the horizontal shaft case 50 by shaft supports 60a, 60a provided at the rear end portions. Similarly, the rear end portion of the transport section 21 is supported by the horizontal shaft case 50. In this way, the horizontal shaft case 50 is arranged behind the digging part 20 and corresponds to the pivot part of the ridge breaking parts 60, 60 and the conveying part 21. In addition, the ridge breaking parts 60, 60 are connected to the conveying part 21 by the pair of front and rear mounting plates 60b, 60b, so that they are raised and lowered integrally with the conveying part 21. The attachment holes for attaching the attachment plates 60b, 60b to the conveyance section 21 with bolts or the like are elongated holes, and the attachment angle of the ridge breaking sections 60, 60 relative to the conveyance section 21 can be adjusted.

The ridge breaking parts 60, 60 include ridge breaking rotors 61, 61 that break the ridge U from both sides. The ridge breaking rotors 61, 61 have disk-shaped attachment disks 62, 62 and a plurality of ridge breaking claws 63, 63 attached to the attachment disks 62, 62. The plurality of ridge breaking claws 63, 63 are provided protrudingly provided on each of the mounting discs 62, 62 at regular intervals in the circumferential direction. In this embodiment, six ridge breaking claws 63, 63 are attached to each mounting disk 62, 62. The ridge breaking rotors 61, 61 rotate around rotational axes perpendicular to the plate surfaces of the mounting discs 62, 62. Further, the left and right ridge breaking rotors 61, 61 are arranged in an inverted "V" shape when viewed from the front, so that the distance between them becomes narrower toward the bottom.

As shown in FIG. 2, the ridge breaking parts 60, 60 are provided with rotor rotation shafts 64, 64 that rotate the ridge breaking rotors 61, 61. The rotor rotation shafts 64, 64 extend outward from the center of the mounting discs 62, 62 to the left and right. The rotor rotation shaft 64 is housed in a gear case 65. The rotor rotation shaft 64 protrudes inward from the gear case 65 to the left and right, and supports the mounting disk 62 of the ridge breaking rotor 61 at its tip.

The base ends (lower ends) of the first drive cases 66, 66 extending upward are attached to the left and right side parts of the horizontal shaft case 50, and the ridge breaking parts 60, 60 are attached to the right and left sides of the horizontal shaft case 50, and the base ends (lower ends) of the first drive cases 66, 66 extend upward. The proximal ends (rear ends) of the second drive cases 67, 67 extending toward the front are attached to the front ends (upper ends) of the second drive cases 67, 67, and A gear case 65 is attached. Gear cases 68, 68 are provided at both left and right ends of the horizontal shaft case 50, and gear cases 69, 69 are provided at the tips of the first drive cases 66, 66.

The second drive cases 67, 67 extend forward along the conveyance section 21. More specifically, the second drive cases 67, 67 are arranged on the right and left outer sides of the conveyance unit 21 in an inclined manner so as to be substantially parallel to the conveyance belt 45 and have a low front and a high rear. The first drive cases 66, 66 are arranged substantially perpendicularly to the second drive cases 67, 67 when viewed from the side.

The left and right rotor rotation shafts 64, 64 rotate in response to the rotational driving force of second rotor drive shafts 72, 72 housed in second drive cases 67, 67 (see FIG. 2). The gear cases 65, 65 house gear connecting portions of the rotor rotation shafts 64, 64 and the second rotor drive shafts 72, 72. For example, a bevel gear is used as the gear connection portion.

The left and right second rotor drive shafts 72, 72 rotate in response to the rotational driving force of the first rotor drive shafts 71, 71 housed in the first drive case 66 (see FIG. 2). The gear cases 69, 69 house the gear connecting portions of the second rotor drive shafts 72, 72 and the first rotor drive shafts 71, 71. For example, a bevel gear is used as the gear connection portion.

The left and right first rotor drive shafts 71, 71 rotate in response to the rotational driving force of the drive output shaft 70 housed in the horizontal shaft case 50 (see FIG. 2). The drive output shaft 70 has an axial direction extending in the left-right direction. The gear case 68 houses the gear connection portions of the drive output shaft 70 and the first rotor drive shafts 71, 71. For example, a bevel gear is used as the gear connection portion.

In this way, the rotor drive mechanism for transmitting the driving force to the ridge breaking rotors 61, 61 includes the first rotor drive shafts 71, 71, the second rotor drive shafts 72, 72, and the rotor rotation shafts 64, 64. .

With the above configuration, the first drive cases 66, 66 that house the first rotor drive shafts 71, 71 and the second drive cases 67, 67 that house the second rotor drive shafts 72, 72 are located on the side of the digging conveyor 32. Since the excavation conveyor 32 is not disposed in the opposite direction, mud is less likely to accumulate on the digging conveyor 32, and mud does not adhere to the harvested products.

Moreover, the ridge breaking parts 60, 60 are provided with rotor covers 73, 73 that cover the upper side and the left and right outer sides of the ridge breaking rotors 61, 61. The rotor covers 73, 73 prevent scattering of mud generated when the ridges are broken by the ridge breaking rotors 61, 61.

The rotor covers 73, 73 are provided above the ridge breaking rotors 61, 61. More specifically, as shown in FIGS. 9 and 10, the rotor covers 73, 73 have support pipes 74, 74 fixed to the second drive cases 67, 67 above the ridge breaking rotors 61, 61. (corresponding to the support part) is supported in a suspended state. The support pipes 74, 74 are substantially L-shaped and are provided so as to branch from the second drive cases 67, 67 and extend upward, and then extend forward. By supporting the rotor covers 73, 73 in a suspended state from above, the mud can be smoothly discharged since there are no supporting parts on the sides of the ridge breaking rotors 61, 61.

The rotor covers 73, 73 include an upper cover part 731 that covers the upper side of the ridge breaking rotors 61, 61, and a side cover part 732 that is attached to the upper cover part 731 and covers the left and right outer sides of the ridge breaking rotors 61, 61. ing.

The upper cover part 731 includes a base cover 731a supported by the support pipe 74, and a front rotation cover 731b and a rear rotation cover 731c connected to the base cover 731a so as to be vertically rotatable. That is, the upper cover part 731 is divided into three parts, front and rear. The front rotating cover 731b is provided on the front side of the base cover 731a via a hinge portion 731d, and the rear rotating cover 731c is provided on the rear side of the base cover 731a via a hinge portion 731e.

The side cover section 732, like the upper cover section 731, is divided into three parts, front and rear, including a central side cover 732a attached to the base cover 731a and a front side cover attached to the front movable cover 731b. 732b, and a rear side cover 732c attached to the rear rotating cover 731c.

The side cover portion 732 is made of a rubber plate and is deformable. At least the central side cover 732a of the side cover portions 732 has a shape retaining member 733 for retaining the shape of a rubber plate. The form retaining member 733 is provided along the back surface (the surface facing the ridge breaking rotor 61) of the central side cover 732a. The form-retaining member 733 is an elongated strip-shaped metal plate, and by plastically deforming the form-retaining member 733, the central side cover 732a can be held in any desired form. Thereby, the mounting angle of the central side cover 732a relative to the upper cover portion 731 can be changed. As a result, the attachment angle of the central side cover 732a can be adjusted depending on the scattering direction or amount of mud.

Two form-retaining members 733 are provided at the front and rear of the central side cover 732a. Note that the shape retaining member 733 is provided at least on the central side cover 732a, but may also be provided on the front side cover 732b and the rear side cover 732c.

A pair of left and right gauge wheels 90, 90 are provided in front of the harvesting section 2. The left and right gauge wheels 90, 90 determine the height of the front end of the harvesting section 2 from the ground, and make the traveling body 1 run along the ridge U while in contact with the left and right sides of the ridge U.

The gauge wheels 90, 90 are supported by a gauge wheel support frame 91 attached to the conveyance section 21. The gauge wheel support frame 91 extends from the front ends of the left and right support arms 92, 92 attached to the conveyance section 21, the guide frame part 93 which is gate-shaped in front view, and the left and right support arms 92, 92. and gauge wheel support arm portions 94, 94.

The left and right support arm portions 92, 92 are formed of pipe-shaped members, and have base end portions fixed to the transport portion 21 and distal end portions extending forward. The front portions of the support arm portions 92, 92 extend substantially horizontally. The guide frame section 93 is composed of a pipe-shaped member, and its both ends are fixed to the front central part of the left and right support arm sections 92, 92, and the guide frame section 93 is provided so as to straddle the front end section of the conveyance section 21 from side to side. It is being

The gauge wheel support arm parts 94, 94 are provided in an inclined shape toward the front downward direction from the front end of each support arm part 92, 92. The gauge wheel support arm parts 94, 94 include gauge wheel support arm members 95, 95 fixed to each support arm part 92, 92, and a gauge wheel support member attached to the lower end of each gauge wheel support arm member 95, 95. 96,96.

The gauge wheel support arm members 95, 95 are provided so as to be extendable and retractable by operating rotary handles 95a, 95a provided at their upper ends, thereby making it possible to adjust the height of the left and right gauge wheels 90, 90. ing.

Gauge wheel support members 96, 96 rotatably support gauge wheels 90, 90. The left and right gauge wheels 90, 90 are supported in an inclined manner so as to form an inverted "V" shape when viewed from the front of the aircraft, so that the distance between them becomes narrower toward the bottom. The gauge wheel support members 96, 96 are attached to the gauge wheel support arm members 95, 95 so as to be vertically rotatable. As a result, when loading the green onion harvester A onto a truck, the gauge wheel support members 96, 96 are rotated upward together with the gauge wheels 90, 90 (see FIG. 2), and the green onion harvester A is loaded onto the truck. The total length can be shortened.

[Other embodiments]
In the above-described embodiment, the second drive cases 67, 67 extend forward along the conveyance section 21, but the present invention is not limited thereto. The second drive cases 67, 67 do not necessarily need to be arranged adjacent to the left and right outer sides of the conveyance section 21, and the first drive cases 66, 66 and the second drive cases 67, 67 are dug out in a side view. It suffices if they are arranged so as not to overlap in the space between the conveyor 32 and the transport section 21. That is, the second drive cases 67, 67 do not need to be arranged substantially parallel to the conveyor belt 45 on the left and right outer sides of the conveyance section 21, and the first drive cases 66, 66 are arranged in the second direction in a side view. It is not necessary to arrange them substantially perpendicularly to the drive cases 67, 67.

Although the embodiments of the present invention have been described above based on the drawings, it should be understood that the specific configuration is not limited to these embodiments. The scope of the present invention is indicated not only by the description of the embodiments described above but also by the claims, and further includes all changes within the meaning and scope equivalent to the claims.

A Green onion harvester N Green onion Na Rhizome part Nb Leaf part 1 Traveling machine body 2 Harvesting part 10 Traveling part 11 Machine frame 20 Digging part 21 Transport part 22 Scraping part 32 Digging conveyor 60 Row breaking part 61 Row breaking rotor 64 Rotor rotation shaft 66 First drive case 67 Second drive case 70 Drive output shaft 71 First rotor drive shaft 72 Second rotor drive shaft 73 Rotor cover 731 Upper cover part 732 Side cover part 733 Shape retaining member 74 Support pipe

Claims (3)

A green onion harvesting machine equipped with a self-propelled traveling body and a harvesting section that digs up and harvests green onions from a ridge in which green onions are cultivated,
The harvesting section includes a digging section for digging up green onions;
a conveyance unit that grips and conveys the green onions dug up by the digging unit to the rear;
a ridge breaking part provided in front of the digging part to break the ridge;
A driving mechanism for transmitting a driving force to the ridge breaking section extends upward from the rear of the digging section, further extends toward the front, and is connected to the ridge breaking section. The onion harvester according to claim 1 , wherein a portion of the drive mechanism for transmitting driving force to the ridge breaking section that extends forward is along the conveyance section. 2. The onion harvester according to claim 1 , wherein the ridge breaking section is configured to be movable up and down integrally with the digging section and the conveyance section using a rear portion of the digging section as a pivot point.