JP2022046804A - Welsh onion harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a welsh onion harvester which makes mud less likely to accumulate on a conveyor of a digging-up part and prevents the mud from adhering to harvested crops.

SOLUTION: A welsh onion harvester comprises a harvester (A) on which a harvesting part 2 digging up welsh onions N from a ridge U to harvest them is installed on a travelling machine body 1. The harvesting part 2 includes: a dig-up part 20 digging up the welsh onions N; a conveying part 21 grasping the dug-up welsh onions N and conveying them to the back; and a ridge breaking part 60 installed in front of the dig-up part 20 and breaking the ridge U. A driving mechanism for transmitting driving force to the ridge breaking part 60 is disposed on the upper part of a dig-up conveyor 32 of the dig-up part 20 and is connected to the ridge breaking part 60.

SELECTED DRAWING: Figure 2

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to a green onion harvester, specifically, a green onion harvester provided with a self-propelled traveling machine and a harvesting section for digging and harvesting green onions from the ridges where green onions are cultivated.

The following Patent Document 1 includes a digging section for digging up green onions, a transport section for sandwiching and transporting the green onions dug up by the digging section to the rear, and a ridge breaking section having a ridge breaking rotor for breaking the ridges from both sides. Disclosed is a green onion harvester in which a digging portion, a transport portion, and a ridge-breaking portion are pivotally supported by a traveling machine body and the tip side can be raised and lowered integrally.

Japanese Unexamined Patent Publication No. 2016-86643

However, in the 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 excavation section provided below the transport section. It was difficult for mud to be discharged from both the left and right sides of the conveyor, and there was a problem that mud accumulated on the conveyor and adhered to the harvested material.

Therefore, in view of the above problems, it is an object of the present invention to provide a green onion harvester in which mud is less likely to accumulate on the conveyor of the excavated portion and mud does not adhere to the harvested product.

The green onion harvester of the present invention is a green onion harvester equipped with a self-propelled traveling machine and a harvesting section for digging and harvesting green onions from the ridges where green onions are cultivated.
The harvesting section is provided on both the left and right sides in front of the digging section, a digging section for digging up green onions, a transport section for sandwiching and transporting the green onions dug up by the digging section to the rear, and ridges for breaking the ridges from both sides. Equipped with a ridge breaking part having a breaking rotor,
The ridged portion is configured to be able to move up and down integrally with the dug up portion and the transport portion, with the rear portion of the dug up portion as a pivotal support portion.
The rotor drive mechanism for transmitting the driving force to the ridge-breaking rotor includes a first rotor drive shaft extending upward from a drive output shaft provided in the pivot portion with the left-right direction as an axial direction, and the first rotor. It has a second rotor drive shaft that 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 transport portion.

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

Further, in the present invention, the rotor cover is suspended by the support portion to cover the upper side of the ridged rotor, and the side attached to the upper cover portion to cover the left and right outer sides of the ridged rotor. Equipped with a cover part
The side cover portion may have a changeable mounting angle with respect to the upper cover portion.

According to the present invention, the rotor drive mechanism for transmitting the driving force to the ridge-breaking rotor extends upward from the drive output shaft behind the excavated portion and then extends forward, so that the left and right sides of the excavated portion are extended. Since it is not placed on both sides, mud does not easily collect on the conveyor in the excavated part, and mud does not adhere to the harvested material.

Perspective view of the green onion harvester of this embodiment Left side view of the green onion harvester of this embodiment Right side view of the green onion harvester of this embodiment Plan view of the green onion harvester of this embodiment Front view of the green onion harvester of this embodiment Rear view of the green onion harvester of this embodiment Vertical sectional view of the green onion harvester of this embodiment Perspective view of the scraped part Perspective view of rotor cover Top view of rotor cover

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 1 to 7A are green onion harvesters according to the present embodiment, FIG. 1 is a perspective view of the green onion harvester A, FIG. 2 is a left side view of the green onion harvester A, and FIG. 3 is a green onion harvester. Right side view of A, FIG. 4 plan view of green onion harvester A, FIG. 5 front view of green onion harvester A, FIG. 6 rear view of green onion harvester A, and FIG. 7 vertical sectional view of green onion harvester A. Is. The green onion harvester A is provided with a self-propelled traveling machine 1 and a harvesting unit 2 for digging up and harvesting green onions N from the ridges U where the green onions N are cultivated. In the present embodiment, the green onion N is a long onion having a rhizome portion Na and a leaf portion Nb. In the following description, the left side of the traveling machine 1 in the forward direction is simply referred to as the left side, and similarly, the right side in the forward direction is simply referred to as the right side.

[Structure of traveling aircraft]
The traveling machine body 1 includes a machine body frame 11 formed in a three-dimensional frame shape, and a pair of crawler-type traveling parts 10 and 10 arranged on both sides of the machine body frame 11. The engine 12 is mounted on the rear right side of the fuselage frame 11 so as to be located above and behind the traveling portion 10 on the right side, and the driving force of the engine 12 is transmitted to the traveling portions 10 and 10 on the lower portion of the aircraft frame 11. The case 13 is arranged between the pair of left and right traveling portions 10, 10. The mission case 13 is arranged on the right rear side of the fuselage frame 11, that is, on the right side of the traveling portion 10. An operation unit 14 for steering / shifting the traveling units 10 and 10 and performing the harvesting operation of the harvesting unit 2 is arranged on the upper right side of the machine frame 11. At the rear end of the machine frame 11, a horizontal plate-shaped boarding step portion 24 on which an operator rides is arranged so as to project rearward.

[Structure of harvest section]
The harvesting section 2 includes a pair of left and right ridge breaking sections 60, 60, a digging section 20, a transport section 21, a scraping section 22, and a posture changing / aligning section 23 as each working section. The pair of left and right ridge breaking portions 60, 60 break both shoulder portions of the ridge U to reduce the entry resistance of the digging portion 20 into the ridge U. Welsh onion N is cultivated in the ridge U whose entry resistance is reduced in this way, and this green onion N is dug up by the digging section 20. The transporting section 21 sandwiches the middle portion of the green onion leaf portion Nb dug up by the digging section 20, and transports the sandwiched green onion N in an upright posture toward the rear and upward. The scraping unit 22 scrapes off the soil mass adhering to the rhizome portion Na of the green onion N transported by the transport unit 21. The posture change / alignment unit 23 inherits the green onion N conveyed in the standing posture from the terminal portion of the transport unit 21, and also sandwiches the middle portion of the inherited green onion N, and moves the sandwiched green onion N from the standing posture to the outside. Transport toward the left rear and upper while changing and aligning the posture to the forward leaning posture tilted forward. The digging section 20, the transport section 21, and the scraping section 22, which are the working sections, are arranged in front of the traveling machine body 1 on a virtually identical straight line L extending in the front-rear direction, and behind these working sections. Moreover, the boarding step portion 24 is arranged on the virtually identical straight line L.

The dug-up portion 20 pivotally supports the base end portion of the rectangular frame-shaped support frame 30 formed by extending in the front-rear direction to the machine frame 11 via a pivot 31 whose axis is directed in the left-right direction, and supports the support frame. The digging conveyor 32, which is a so-called bar conveyor, is mounted on the body 30, and the digging blade 33 is attached to the starting end portion (front end portion) of the digging conveyor 32 in a protruding shape toward the front. As shown in FIG. 7, a lifting cylinder 37 that expands and contracts in the front-rear direction is laterally provided between the cylinder stay 35 provided on the machine frame 11 and the lifting arm 36 erected upward from the middle part of the pivot 31. A continuous piece 39 is interposed between the base end portion of the elevating arm 36 and the left and right extension pieces 30a of the support frame body 30. The digging section 20 can be lifted and lowered by the elevating cylinder 37, and the transport section 21 and the scraping section 22 are also configured to be integrally raised and lowered with the digging section 20.

In the digging section 20 configured in this way, when the green onion N is harvested, the digging section 20 is appropriately lowered by the elevating cylinder 37, and the digging conveyor 32 is arranged in an inclined posture of front low and rear high. At the same time, the tip end side half of the digging blade 33 is arranged in close proximity to the field G surface substantially horizontally. In such a state, as the traveling machine 1 travels forward, the tip side half of the digging blade 33 enters the ridge U where the green onion N is cultivated substantially horizontally toward the front. The green onion N is dug up from directly below the rhizome portion Na of the green onion N, and the base end side half of the digging blade 33 transfers the green onion N backward and upward together with the soil mass. Then, the green onion N that has been dug up is transferred backward and upward while sliding on the upper surface of the base end side half of the digging blade 33, and the leaf portion Nb of the green onion N is sandwiched by the transport portion 21 described later and moves upward and backward. On the other hand, the rhizome portion Na of the green onion N to which the soil mass is attached is delivered from the base end side half of the digging blade 33 onto the digging conveyor 32, and is further transported upward by the digging conveyor 32. At this time, the green onion N is transported backward and upward while maintaining the standing posture cultivated in the ridge U.

The transport section 21 is arranged in an inclined shape of front low and rear height in parallel with the digging conveyor 32 of the digging section 20 directly above the digging section 20, and the middle portion of the green onion N in the upright posture dug up is lateral to the left and right. It is designed to be transported upward and backward while being pinched from the top. That is, the transport unit 21 is arranged so as to face each other in parallel directly above the digging conveyor 32 via a pair of left and right front / rear support frames 40, 41. The transport unit 21 is configured by disposing a pair of left and right transport bodies 42, 42 extending in the front-rear direction. The transport body 42 is formed by winding a transport belt 45 around a driven pulley 43 and a drive pulley 44 arranged at intervals in the front-rear direction. The transport belts 45a, 45a for transporting from the start end (front end) to the end (rear end) of both the transport bodies 42, 42 facing each other on the left and right are in face-to-face contact with each other for transport. The side portions 45a and 45a of the belt sandwich the leaf portion Nb of the green onion N, and the green onion N is transported backward and upward in the sandwiched state.

The front support frame 40 on the left side is extended in the vertical direction and is interposed between the left side portion of the excavation conveyor 32 and the front portion of the transport body 42 on the left side. Similarly, the front support frame 40 on the right side is extended in the vertical direction and interposed between the right side portion of the excavation conveyor 32 and the front portion of the transport body 42 on the right side. 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 side portions of the transmission horizontal shaft case that pivotally supports the transport portion transmission horizontal shaft 170. Is erected. The left rear support frame 41 is interposed between the rear portion of the left carrier 42 and the left front portion of the machine frame 11 in an oblique manner. Similarly, the rear support frame 41 on the right side is interposed between the rear portion of the transport body 42 on the right side and the front portion on the right side of the machine body frame 11 in an oblique manner. Reference numeral 49 denotes a tension roller that elastically biases the outbound side portion 45a of the transport belt.

In the transport unit 21 configured in this way, the transport belt outbound side portions 45a, 45a of the pair of left and right transport bodies 42, 42 sandwich the leaf portion Nb of the green onion N, and the green onion N is moved backward and upward in the sandwiched state. Since the green onions N are to be transported, the green onions N are steadily transported backward and upward in an upright posture in cooperation with the digging conveyor 32 of the digging section 20 that supports and transports the rhizome portion Na of the green onions N from below. be able to.

The scraping portion 22 horizontally lays a horizontal axis case 50 extending in the left-right direction on the machine frame 11, extends the chain case 51 from the right side portion of the horizontal axis case 50 toward the front and lower sides, and extends the tip of the chain case 51. The shaft case is projected toward the left side at the portion (front end portion), and the rotating body 54 is coaxially attached to the tip end portion of the rotating body support shaft 53 mounted in the shaft case. The rotating body 54 is formed of a cylindrical peripheral wall whose axis is directed in the left-right direction and left and right end walls that block the left and right end faces of the peripheral wall, and the tip of the rotating body support shaft 53 is located at the center of the left and right end walls. It is attached by penetrating the part. That is, the rotating body 54 is arranged with its axis oriented in a direction orthogonal to the transport direction of the transport unit 21, and is rotatable around the axis via the rotating body support shaft 53.

As shown in FIG. 8, a large number of scraping protrusions 55 are radially projected on the outer peripheral surface of the peripheral wall of the rotating body 54 at intervals in the circumferential direction and the axial direction, and each of the protrusions. In 55, the protruding height of each projecting piece 55 is changed so that the tips thereof are along the rhizome portion Na. In the present embodiment, eight projecting pieces 55 are projected at the same space in the circumferential direction of the outer peripheral surface of the peripheral wall of the rotating body 54 to form a projecting piece unit, and the same space is provided in the axial direction of the peripheral wall. Seven sets of these projectile units are formed.

Further, removable 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 bolts or the like. The scraping auxiliary member 56 is made of a rubber plate, and can efficiently scrape off the soil mass adhering to the rhizome portion Na without damaging the green onion N.

The posture change / alignment unit 23 inherits the green onion N transported upward by the transport unit 21 in a standing posture at a position immediately after the transport unit 21, and tilts the inherited green onion N outward from the standing posture. The posture is changed to the tilted posture, and the green onions N are arranged so as to be aligned, and the green onions N are transported toward the rear-upper side on one side (in the present embodiment, the rear-upper side on the left side) while changing the posture and aligning.

That is, the posture change / alignment portion 23 is configured by arranging a pair of left and right transfer bodies 80, 80 extending in the front-rear direction so that the front low and the rear height are high and the rear end portion faces outward on the left side. 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) arranged at intervals in the front-rear direction, and faces each other on the left and right sides. The transfer belt outbound side portions 83a, 83a transferred from the start end portion (front end portion) to the end portion (rear end portion) of both the transfer bodies 80, 80 are brought into face-to-face contact with each other. The drive pulleys 81 and 81 are arranged with their axes oriented in the vertical direction, while the driven pulleys 82 and 82 are arranged with their axes tilted in the left high right low tilt direction (for example, 45 °). , The middle of the transfer belt outbound side portions 83a and 83a are brought into surface contact in a twisting manner. The drive pulley 44 of the left transfer body 42 and the drive pulley 81 of the left transfer body 80 are located at the upper end and the middle portion of the left pulley drive shaft 85 arranged so that the axes are oriented in the vertical direction as shown in FIG. It is mounted coaxially. The drive pulley 44 of the transport body 42 on the right side is interlocked and connected to the upper end of the pulley drive shaft 85 on the right side arranged with the axis oriented in the vertical direction via a chain case, and the drive pulley 81 of the transport body 80 on the right side is connected. , Attached to the middle part of the pulley drive shaft 85 on the right side. Then, in the posture changing / aligning portion 23 that inherits the green onion N from the terminal portion of the transport portion 21, the transfer belt outward route side portions 83a and 83a sandwich the green onion N leaf portion Nb and hold the green onion N in the sandwiched state. They are aligned while changing their posture from an upright posture to a tilted posture, and are transported upward from the left side to the upper side. Reference numeral 87 denotes an auxiliary transfer belt for transporting the green onion N while holding the leaf tip side of the green onion N transferred by the posture change / alignment portion 23 so as not to hang down.

In the posture change / alignment unit 23 configured in this way, the posture of the green onions N can be changed from the standing posture to the tilted posture. Therefore, the green onions N are sequentially and steadily collected by the collection unit 25 described later. Can be stored.

A rectangular plate-shaped collecting unit 25 for collecting green onions N is arranged at a position below the rear of the posture changing / aligning unit 23, and the green onions N whose posture is changed / aligned by the posture changing / aligning unit 23 are collected in the collecting unit 25. I am trying to collect it. Then, the front end edge portion of the collecting unit 25 is arranged below the end portion of the posture changing / aligning unit 23, and the green onion N conveyed by the posture changing / aligning unit 23 is dropped onto the collecting unit 25 and collected. I try to store it.

A pair of left and right ridged portions 60, 60, which are a part of the harvesting portion 2, are arranged in front of the digging portion 20. The ridges 60, 60 break both shoulders of the ridge U to reduce the entry resistance of the subsequent digging portion 20, so that the digging work by the ridge 20 can be smoothly performed.

The ridged portions 60, 60 and the conveying portion 21 are configured such that the rear end portion is pivotally supported by the traveling machine body 1 and the front end portion side is moved up and down. The ridged portions 60, 60 are supported by the horizontal shaft case 50 by the shaft support portions 60a, 60a provided at the rear end portions. Similarly, the rear end portion of the transport portion 21 is supported by the horizontal axis case 50. In this way, the horizontal axis case 50 is arranged behind the excavated portion 20, and corresponds to the ridged portions 60, 60 and the pivotal branch of the transport portion 21. Further, since the ridged portions 60, 60 are connected to the transport portion 21 by a pair of front and rear mounting plates 60b, 60b, they are moved up and down integrally with the transport portion 21. The mounting holes for mounting the mounting plates 60b, 60b to the transport portion 21 with bolts or the like are elongated holes, and the mounting angles of the ridged portions 60, 60 with respect to the transport portion 21 can be adjusted.

The ridge breaking portions 60, 60 include ridge breaking rotors 61, 61 that break the ridge U from both sides. The ridge-breaking rotors 61, 61 have a disk-shaped mounting disc 62, 62, and a plurality of ridge-breaking claws 63, 63 mounted on the mounting discs 62, 62. The plurality of ridge-breaking claws 63, 63 are projected from the mounting discs 62, 62 at regular intervals in the circumferential direction. In this embodiment, six ridge-breaking claws 63, 63 are attached to the mounting disks 62, 62, respectively. The ridge breaking rotors 61, 61 rotate around a rotation axis perpendicular to the plate surface of the mounting disks 62, 62. Further, the left and right ridge-breaking rotors 61, 61 are arranged so as to have an inverted "C" shape in front view so that the distance between the left and right ridge rotors 61 and 61 becomes narrower toward the lower side.

As shown in FIG. 2, the ridge breaking portions 60, 60 include rotor rotating shafts 64, 64 for rotating the ridge breaking rotors 61, 61. The rotor rotation shafts 64, 64 extend to the left and right outward from the center of the mounting disks 62, 62. The rotor rotary shaft 64 is housed in the 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 rotor 61 at the tip thereof.

The ridged portions 60, 60 have base end portions (lower end portions) of the first drive cases 66, 66 extending upward attached to the left and right side portions of the horizontal axis case 50, and the first drive cases 66, 66, respectively. The base end (rear end) of the second drive cases 67, 67 extending forward is attached to the tip (upper end) of the second drive case 67, 67, and the tip (front end) of each of the second drive cases 67, 67 is attached. A gear case 65 is attached. Gear cases 68 and 68 are provided at both left and right ends of the horizontal axis case 50, and gear cases 69 and 69 are provided at the tips of the first drive cases 66 and 66.

The second drive cases 67, 67 extend forward along the transport portion 21. More specifically, the second drive cases 67, 67 are arranged on the left and right outer sides of the transport portion 21 in an inclined shape of front low and rear height so as to be substantially parallel to the transport belt 45. The first drive cases 66, 66 are arranged substantially perpendicular to the second drive cases 67, 67 in a side view.

The left and right rotor rotation shafts 64, 64 rotate under the rotational driving force of the second rotor drive shafts 72, 72 housed in the second drive cases 67, 67 (see FIG. 2). In the gear cases 65 and 65, the gear connecting portions of the rotor rotating shafts 64 and 64 and the second rotor drive shafts 72 and 72 are housed. As the gear connecting portion, for example, a bevel gear is used.

The left and right second rotor drive shafts 72, 72 rotate under 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 accommodate the gear connecting portions of the second rotor drive shafts 72, 72 and the first rotor drive shafts 71, 71. As the gear connecting portion, for example, a bevel gear is used.

The left and right first rotor drive shafts 71 and 71 rotate under 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 in the left-right direction. The gear case 68 houses the gear connecting portions of the drive output shaft 70 and the first rotor drive shafts 71 and 71. As the gear connecting portion, for example, a bevel gear is used.

As described above, 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 for accommodating the first rotor drive shafts 71, 71 and the second drive cases 67, 67 for accommodating the second rotor drive shafts 72, 72 are on the side of the excavation conveyor 32. Since it is not arranged on the side, mud does not easily collect on the excavation conveyor 32, and mud does not adhere to the harvested material.

Further, the ridge breaking portions 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 the 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 are the support pipes 74, 74 fixed to the second drive cases 67, 67 above the ridge-breaking rotors 61, 61. It is supported in a suspended state by (corresponding to the support part). The support pipes 74, 74 have a substantially L-shape, and are provided so as to extend upward from the second drive cases 67, 67 so as to branch off, and then extend forward. By supporting the rotor covers 73 and 73 in a state of being lifted from above, since there is no support portion on the side of the ridge-breaking rotors 61 and 61, mud can be discharged smoothly.

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

The upper cover portion 731 has a base cover 731a supported by the support pipe 74, and a front rotation cover 731b and a rear rotation cover 731c rotatably connected to the base cover 731a. That is, the upper cover portion 731 is divided into three front and rear parts. The front rotation cover 731b is provided on the front side of the base cover 731a via the hinge portion 731d, and the rear rotation cover 731c is provided on the rear side of the base cover 731a via the hinge portion 731e.

Like the upper cover portion 731, the side cover portion 732 is divided into three front and rear parts, and the central side cover 732a attached to the base cover 731a and the front side cover attached to the front rotating cover 731b. It has a 732b and a rear side cover 732c attached to the rear rotation 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 portion 732 has a shape-retaining member 733 for holding the shape of the rubber plate material. The form-retaining member 733 is provided along the back surface of the central side surface cover 732a (the surface facing the ridge-breaking rotor 61). The form-retaining member 733 is an elongated strip-shaped metal plate material, and the central side surface cover 732a can be held in any form by plastically deforming the form-retaining member 733. As a result, the mounting angle of the central side cover 732a with respect to the upper cover portion 731 can be changed. As a result, the mounting angle of the central side cover 732a can be adjusted according to the scattering direction of the mud or the discharge amount.

Two form-retaining members 733 are provided in front of and behind the central side cover 732a. The form-retaining member 733 is provided at least on the central side surface cover 732a, but may also be provided on the front side surface cover 732b and the rear side surface 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 portion of the harvesting portion 2 with respect to the ground, and the traveling machine body 1 is driven along the ridge U in a state of being 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 transport portion 21. The gauge wheel support frame 91 extends from the left and right support arm portions 92, 92 attached to the transport portion 21, the front gate-shaped guide frame portion 93, and the front ends of the left and right support arm portions 92, 92. It has the gauge wheel support arm portions 94 and 94.

The left and right support arm portions 92, 92 are composed of pipe-shaped members, the base end portion is fixed to the transport portion 21, and the tip portion extends forward. The front portions of the support arm portions 92 and 92 extend substantially horizontally. The guide frame portion 93 is composed of a pipe-shaped member, both ends thereof are fixed to the front central portion of the left and right support arm portions 92, 92, and the front end portions of the transport portion 21 are provided so as to straddle the left and right. Has been done.

The gauge wheel support arm portions 94, 94 are provided so as to be inclined from the front end portions of the respective support arm portions 92, 92 toward the front lower part. The gauge wheel support arm portions 94, 94 are a gauge wheel support arm member 95, 95 fixed to each support arm portion 92, 92, and a gauge wheel support member attached to the lower end portion of each gauge wheel support arm member 95, 95. It has 96 and 96.

The gauge wheel support arm members 95, 95 are provided so as to be expandable and contractible by operating the rotary handles 95a, 95a provided at the upper ends thereof, whereby the heights of the left and right gauge wheels 90, 90 can be adjusted. ing.

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

[Other embodiments]
In the above-described embodiment, the second drive cases 67, 67 extend forward along the transport portion 21, but are not limited to this. The second drive cases 67 and 67 do not necessarily have to be arranged adjacent to the left and right outer sides of the conveyor 21, and the first drive cases 66 and 66 and the second drive cases 67 and 67 are dug up from the side view. It may be arranged so as not to overlap the space between the conveyor 32 and the transport unit 21. That is, the second drive cases 67 and 67 do not need to be arranged substantially parallel to the transport belt 45 on the left and right outer sides of the transport portion 21, and the first drive cases 66 and 66 are second in side view. It does not have to be arranged substantially perpendicular to the drive cases 67 and 67.

Although the embodiments of the present invention have been described above with reference to the drawings, it should be considered that the specific configuration is not limited to these embodiments. The scope of the present invention is shown not only by the description of the above-described embodiment but also by the scope of claims, and further includes all modifications within the meaning and scope equivalent to the scope of claims.

A Onion Harvester N Onion Na Rhizome Nb Leaf part 1 Traveling machine 2 Harvesting part 10 Traveling part 11 Aircraft frame 20 Excavating part 21 Transporting part 22 Scraping part 32 Excavating conveyor 60 Unraveling part 61 Unfolding rotor 1st drive case 67 2nd drive case 70 Drive output shaft 71 1st rotor drive shaft 72 2nd rotor drive shaft 73 Rotor cover 731 Upper cover part 732 Side cover part 733 Form holding member 74 Support pipe

Claims (4)

It is a green onion harvester equipped with a self-propelled traveling machine and a harvesting section that digs up and harvests green onions from the ridges where green onions are cultivated.
The harvesting section includes a digging section for digging up green onions and a digging section.
A transport section that holds the green onions dug up by the digging section and transports them backwards.
It is provided in front of the digging part and is provided with a ridge-breaking part that breaks the ridges.
The drive mechanism for transmitting the driving force to the ridged portion is a green onion harvester arranged above the digging conveyor of the digging portion and connected to the ridged portion. It is a green onion harvester equipped with a self-propelled traveling machine and a harvesting section that digs up and harvests green onions from the ridges where green onions are cultivated.
The harvesting section includes a digging section for digging up green onions and a digging section.
A transport section that holds the green onions dug up by the digging section and transports them backwards.
It is provided in front of the digging part and is provided with a ridge-breaking part that breaks the ridges.
The drive mechanism for transmitting the driving force to the ridged portion is a green onion harvester that extends upward from the rear of the digging portion and further extends forward, and is connected to the ridged portion. The green onion harvester according to claim 2, wherein the portion of the drive mechanism for transmitting the driving force to the ridged portion is along the transport portion. The green onion harvester according to claim 1 or 2, wherein the ridged portion is configured to be able to move up and down integrally with the dug up portion and the transporting portion, with the rear portion of the dug up portion as a pivotal support portion.

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