JP2001197813A - Working machine for digging onion out - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a working machine for digging onions out capable of surely cutting off raised stems and leaves B while raising the stems and leaves B in a state of hanging down over the surface of ridges. SOLUTION: This working machine for digging onions out is equipped with a stem and leaf-cutting off part 3 for cutting off the stems and leaves B of the onions A cultivated on the ridges D. The stem and leaf-cutting off part 3 is equipped with a hollow covering body 32 opening up a stem and leaf-pulling in port 40 at its lower surface and a stem and leaf-cutting off rotary 33. The stem and leaf-cutting off rotary 33 is equipped with a rotary shaft 43 driven as rotating and a wind-blowing blade body 44 installed at the rotary shaft 43. At the wind-blowing blade body 44, a wind-blowing surface part 45 for generating wind in a direction for raising the stems and leaves B toward a space part 41 formed at the hollow covering body 32 is formed. At the tip part of the wind-blowing surface part 45, a cutting blade 46 for cutting the raised stems and leaves B within the space part 41 is formed. In the stem and leaf-pulling in port 40 of the hollow covering body 32, a mulch sheet-restraining body 42 for restraining the mulch sheet C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an onion digging machine for digging onions.

[0002]

2. Description of the Related Art Conventionally, onions are dug when onion stems and leaves are about to wither and hang down on the surface of the ridges, irrespective of the onions cultivated in the alley and the onions multi-cultivated using the multi-sheet. It is considered appropriate when it becomes.

[0003] For example, Japanese Utility Model Publication No. 7-28811
As described in the publication, when excavating the multi-cultivated onion, the multi-sheet is peeled off the multi-sheet covering the surface of the ridge with the dividers on both sides provided in the onion excavation work machine. While raising the leaves in a state of hanging on the multi-sheet, the raised leaves are cut by a cutting blade of a foliage cutting rotary provided in an onion digging machine.

[0004]

However, in the onion digging machine described in Japanese Utility Model Publication No. 7-28811, the foliage on the multi-sheet is pushed up while raising the multi-sheet by the dividers on both sides. However, in order to cut the raised foliage with a cutting blade, when the multi-sheet is pushed up, the foliage may not be raised so that it can be cut by the cutting blade, and in such a case, the cutting of the foliage is unreliable. Further, when cutting the foliage with the cutting blade, the multi-sheet may be wound by the cutting blade and torn, or the multi-sheet may be wound around the cutting blade, and the multi-sheet may hinder cutting of the foliage.

[0005] The present invention has been made in view of the above-mentioned point, and an onion digging operation capable of reliably cutting the raised foliage while raising the foliage hanging from the surface of the ridge. The purpose is to provide a machine.

[0006]

According to a first aspect of the present invention, there is provided an onion digging machine comprising an onion digging section for cutting foliage of onions cultivated on a ridge. A hollow covering body having a foliage inlet opening at a lower surface and a front space formed with a space communicating with the foliage inlet, a foliage provided at a rear part of the space in the hollow covering body and rotatably driven. A cutting rotary, and the foliage cutting rotary includes a rotating shaft that is driven to rotate, and a blowing blade body provided on the rotating shaft, and the blowing blade body has a direction in which foliage is raised toward the space. In addition to forming a blowing surface for generating a wind, a cutting blade for cutting foliage raised in the space is formed at the tip of the blowing surface.

In the state where the foliage hanging from the surface of the ridge is positioned in the foliage inlet of the hollow covering,
When the foliage cutting rotary is rotated while the onion digging machine is advanced, a wind is generated by the blowing surface of the blowing blade body by the rotation of the blowing blade body of the foliage cutting rotary, and the wind causes a space in the hollow covering body. The foliage in a hanging state is sequentially raised at the lower part of the part, and the foliage in the state raised in the space is sequentially cut by a cutting blade at the tip of the air blowing surface.

Accordingly, the raised foliage can be reliably cut while raising the foliage hanging from the surface of the ridge as the onion digging machine advances.

According to a second aspect of the present invention, there is provided the onion digging machine according to the first aspect, wherein the foliage inlet of the hollow covering body is provided with a multi-sheet presser for holding a multi-sheet covering the surface of the ridge. It has a body.

[0010] By pressing the multi-sheet by the multi-sheet presser at the foliage inlet, the multi-sheet is not pulled up by the wind generated in the space, and is used when cutting the foliage with the cutting blade. The foliage can be reliably cut without tearing the multi-sheet with the cutting blade.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the accompanying drawings.

1 to 3, reference numeral 1 denotes an onion digging machine. The onion digging machine 1 includes a body 2 and a multi-cultivated foliage B of onions A provided on the body 2. It is composed of a foliage cutting section 3 that cuts on the C, and a digging section 4 provided on the body 2 behind the foliage cutting section 3.

As shown in FIG. 2, the airframe 2 includes a main frame 5, a transmission device 6, both-side frames 7, and a connection frame 8.

The main frame 5 is formed of a hollow pipe having a longitudinal direction extending in the left-right direction with respect to the traveling direction of the onion digging machine 1. One end of the main frame 5 has a vertical direction extending in the longitudinal direction. A transmission case 10 having a vertical direction as a longitudinal direction is fixed to the other end of the main frame 5 in a state of facing the bracket 9,
Further, the mission device 6 is fixed to an intermediate portion of the main frame 5.

As shown in FIG. 2, the transmission device 6 includes a transmission case 11 fixed to an intermediate portion of the main frame 5, an input shaft 12 rotatably provided in the transmission case 11, and An output shaft rotatably provided in the main frame 5 and rotated by rotation of the input shaft 12
13, a bevel gear 14 fixed to the input shaft 12 and a gear mechanism 16 having a bevel gear 15 meshed with the bevel gear 14 and fixed to one end of the output shaft 13.

A connecting shaft portion 17 formed at the front end of the input shaft 12 projects forward from the transmission case 11, and an interlocking shaft portion 18 formed at the rear end of the input shaft 12 is connected to the transmission shaft. Projected rearward from case 11,
The other end of the output shaft 13 projects into the transmission case 10.

As shown in FIG. 2, fixed plates 20 are fixed to both sides of the main frame 5, respectively, and both side frames 7 formed by side plates are fixed to the fixed plates 20 on both sides. Further, a reinforcing plate 21 for reinforcing the both-side frames 7 is fixed to a rear end portion of the both-side frames 7.

Further, as shown in FIG. 1 and FIG. 2, a support arm 22 which is located between the foliage cutting part 3 and the excavation part 4 and has a left-right direction as a longitudinal direction is provided on the both-side frame 7 respectively. The columns 24 are fixed to the holders 23 formed on the support arms 22 on both sides so as to be vertically adjustable, and the gauge wheels 25 running in the ridge grooves are rotated at the lower ends of the columns 24 on both sides, respectively. It is freely mounted on a shaft.

Next, as shown in FIGS. 1 to 3, the connecting frame 8 is fixed to fixing plates 20 on both sides of the main frame 5, and the lower arms projecting forward from the fixing plates 20. 26 and the mission case 11
And a top mast 27 protruding forward from the transmission case 11 and the lower arms 26 on both sides.
, And a support plate 28 that supports the top mast 27 and that supports the top mast 27.

Lower pins 30 are respectively attached to the front ends of the lower arms 26 on both sides. A connecting pin 31 is detachably attached to the front end of the top mast 27.

Next, as shown in FIGS. 1 to 3, the foliage cutting section 3 includes a hollow covering body 32 and a foliage cutting rotary 33.

The hollow covering body 32 includes a pair of side cover plates 34 fixed to the bracket 9 on one side and the transmission case 10 on the other side, respectively.
A front covering plate portion 35 formed between the front end portions of the front covering plate portion 35, an upper covering plate portion 36 continuously projecting rearward from an upper end portion of the front covering plate portion 35, and the both side covering plate portions 34. The rear cover plate 37 is formed between the rear ends.

At the lower ends of the both side covering plates 34, side hanging covers 38 which are elastically deformable by a rubber plate or the like and which hang down toward the side surfaces of the ridges are attached. At the lower end of the front cover plate portion 35, a front hanging cover 39 formed to be elastically deformable by a rubber plate or the like is attached.

On the lower surface of the hollow cover 32, both side cover plates 34, a front cover plate 35, and a rear cover plate 37
A foliage lead-in opening 40 for pulling the foliage B hanging from the multi-sheet C is formed at the opening.

The foliage inlet port is formed at the front of the hollow cover 32 by the both side cover plate portion 34, the front cover plate portion 35, the upper cover plate portion 36, and the rear cover plate portion 37. A space 41 communicating with 40 is formed, and the foliage cutting rotary 33 that is driven to rotate is provided at the rear of the space 41 in the hollow covering 32.

Further, between the rear end of the upper cover plate 36 and the upper end of the rear cover plate 37, a foliage removing port 32a opened on the rear surface is formed.

Next, the foliage inlet of the hollow covering 32
On both sides of the inside 40, a multi-sheet pressing body 42 for pressing both sides of the multi-sheet C is provided. The multi-sheet pressing members 42 on both sides are formed of a multi-sheet pressing rod, a multi-sheet pressing chain, a multi-sheet pressing spring, etc., each having a longitudinal direction in the front-rear direction.

Then, the multi-sheet pressing members 42 on both sides are provided.
Are attached to both sides of the front cover plate portion 35, respectively.
Rear ends of 42 are attached to both sides of the rear cover plate 37, respectively.

Next, the foliage cutting rotary 33 includes a rotating shaft 43 which is driven to rotate, and a blowing blade provided on the rotating shaft 43.
44 and equipped.

The rotation shaft 43 is connected to the bracket 9
And a lower end of the transmission case 10 is rotatably mounted on a shaft. The plurality of blow blades 44 are attached to the outer peripheral surface of the rotating shaft 43 at intervals in the axial direction.

The plurality of blow blades 44 are provided with the space 41
Blowing surface part 45 that generates wind in the direction that causes foliage B toward
Is formed, and a cutting blade 46 for cutting the foliage B raised in the space 41 is formed at the tip of the blowing surface 45.

As shown in FIG. 4, the distance E between the lower end of the front hanging cover 39 and the rotation locus of the cutting blade 46 of each of the blowing blade bodies 44 is equal to the onion A of the onion A in the space 41. Foliage B
, For example, at least half or more of the length L of the foliage B.

A sprocket 47 is fixed to the other end of the output shaft 13 protruding into the transmission case 10, and a sprocket 48 is fixed to the other end of the rotating shaft 43 protruding into the transmission case 10. , The sprocket 47 and the sprocket 48
And the endless chain 49 is hung around.

The foliage cutting rotary 33 is driven to rotate by the output from the output shaft 13 in a direction in which the front lower portion rotates upward.

Next, FIG.
As shown in FIG. 7, a vibration frame 50 rotatably provided at the rear end of the both-side frame 7, a vibration mechanism 51 for vibrating the vibration frame 50, and a digging blade attached to the vibration frame 50 52 are provided.

The vibrating frame 50 includes a rotating frame 54 mounted on both sides of a mounting shaft 53 provided between the rear ends of the frames 7 on both sides, and a rotating frame 54 on both sides thereof. Front frame part 55 fixed between front ends
And a rear frame portion 56 fixed to the rear ends of the rotating frame portions 54 on both sides.

The oscillating mechanism 51 is fixed to the interlocking shaft 18 of the input shaft 12 and is eccentrically rotated about the interlocking shaft 18. The roller 58 is freely rotatably supported and is always engaged with the eccentric roller 57.

Further, the excavating blade body 52 is fixed to both end portions of the rear frame portion 56 at an interval wider than the width dimension of the multi-sheet C and vertically cuts both sides of the ridge D vertically. A first blade body 60 having a portion 59 formed at the front edge thereof, and a horizontal blade portion 61 fixed between the lower ends of the first blade bodies 60 on both sides and digging the onion A while cutting the ridge horizontally. And a second blade body 62 formed at the front edge.

Next, the operation of the above embodiment will be described.

The tip of the top mast 27 of the onion digging machine 1 is connected to the top link of the tractor with the connecting pin 31.
The lower pins 30 of the lower arms 26 of the onion digging machine 1 are respectively connected to the lower links on both sides of the tractor, and the connecting shaft of the input shaft 12 of the onion digging machine 1 is connected to the power extraction shaft of the tractor via a power transmission shaft. The part 17 is connected.

Then, the onion digging machine 1 is pulled by the tractor, and the surface of the onion digging machine 1 is regulated by the multi-sheet C while the height is regulated by the gauge wheels 25 on both sides grounded to the ridges and grooves. When the input shaft 12 of the onion digging machine 1 is rotated by the power take-out shaft of the tractor while traveling along the covered ridge D, the rotation of the input shaft 12 causes the output shaft via the gear mechanism 16 to rotate.
13 is rotated, and the foliage cutting rotary 33 provided at the rear of the space 41 in the hollow covering 32 by the output from the output shaft 12
Is driven to rotate.

Further, the rotation of the input shaft 12 causes the eccentric roller 57 fixed to the interlocking shaft portion 18 of the input shaft 12 to eccentrically rotate. By pressing the rotating frame 55, the rotating frames 54 on both sides of the vibration frame 50 are vertically rotated about the mounting shaft 53, and the moat fixed to the rear frame 56 of the rotating frames 54 on both sides. The raising blade body 52 is vertically rotated.

The foliage B, which is hung on the multi-sheet C in the foliage inlet 41 of the hollow covering 32, is sequentially generated by the wind generated by the blowing surface 45 of each blowing blade 44 of the foliage cutting rotary 33. The foliage B raised in the space 41 from the foliage inlet 40 is sequentially cut by the cutting blade 46 at the tip of each blowing surface 45.

Each blow blade of the foliage cutting rotary 33
When raising the foliage B by the wind generated by the blowing surface part 45 of 44, the multi-sheet holding body on both sides in the foliage inlet 41.
By pressing both sides of the multi-sheet C at 42, the multi-sheet C is not pulled up from the surface of the ridge D by the wind generated in the space 41, and the cutting blade 46 at the tip end of each blowing surface 45. When cutting the foliage B at
The multi-sheet C is not wound by the cutting blade 46 at the leading end of the multi-sheet C, and the foliage B is reliably cut on the multi-sheet C.

Accordingly, while the foliage B in the state of being hung on the multi-sheet C is sequentially raised while the onion digging machine 1 advances, the raised foliage B is sequentially and surely cut.

The foliage B cut by the cutting blade 46 at the tip of each blowing surface 45 is discharged from the foliage discharging port 32a by the wind generated by the rotation of each blowing surface 45, and the foliage discharging port 32a.
Foliage B discharged from the container falls onto the multi-sheet C covering the surface of the ridge.

Next, the first blade body 60 on both sides of the excavated blade body 52
The both sides of the ridge D are sequentially cut vertically in the vertical blade portion 59 formed at the bottom, and the horizontal blades of the second blade body 62 fixed between the lower ends of the first blade bodies 60 on both sides are formed. While the ridges D are cut in a substantially horizontal shape at the portion 61, the onions A obtained by cutting the foliage B at the foliage cutting portion 3 are sequentially dug up on the ground surface by the second blade 62.

Then, onion A dug up on the ground surface
The multi-sheet C is pushed up from the surface of the ridge.

Next, the onion A is dried on the ground surface by peeling off the multi-sheet C.

Next, a front hanging cover 39 attached to the lower end of the front covering plate 35 of the hollow covering 32 and a side hanging cover 38 attached to the lower end of both side covering plates 34 of the hollow covering 32.
Accordingly, it is possible to prevent wind generated in the space portion 41 from leaking downward.

Further, the movement of the hollow cover 32 causes the front hanging cover
When the projection 39 collides with the projection of the onion A or the like from above the multi-sheet C, the front hanging cover 39 is elastically bent rearward in the traveling direction of the onion digging machine 1.

When the front hanging cover 39 passes through the projecting portion such as the onion A, the front hanging cover 39 is restored so as to hang down on the lower end of the front cover plate 35, and the lower end of the front hanging cover 39 and the multi-sheet C The gap between the
Leakage of wind generated in the space 41 can be reduced.

Next, in the above embodiment, the foliage cutting rotary 33 includes a rotating shaft 43 that is driven to rotate, and the rotating shaft 43.
A case has been described in which a plurality of blowing blade bodies 44 are attached to the outer peripheral surface of the outer peripheral surface at intervals in the axial direction.However, the present invention is not limited to this configuration, and the foliage cutting rotary 33 includes a rotating shaft 43 that is driven to rotate, It may be constituted by one blow blade body 44 provided on the rotating shaft 43. In the case of this configuration as well, the blowing blade body 44 is formed with a blowing surface portion 45 for generating a wind in the direction of causing the foliage B toward the space portion 41, and the distal end of the blowing surface portion 45 has the inside of the space portion 41. A cutting blade 46 for cutting the foliage B in the state raised in the above is formed.

In the above embodiment, the hollow covering 32
Although the configuration in which the multi-sheet pressing bodies 42 for pressing the both sides of the multi-sheet C are provided on both sides in the foliage inlet 41 of the above-described embodiment, the present invention is not limited to this configuration. A configuration in which a multi-sheet pressing body 42 that presses the intermediate portion of the multi-sheet C may be provided.

Further, in the above-described embodiment, the structure in which the raised leaves B of the multi-cultivated onion A are raised while using the multi-sheet C to cut the raised leaves B is described, but the present invention is not limited to this configuration. Alternatively, the raised foliage B may be cut while raising the foliage B of the onion A cultivated in the alley without using the multi-sheet C.

[0056]

According to the first aspect of the present invention, while the onion digging machine advances, the foliage which hangs down on the surface of the ridge by the blower blade of the foliage cutting rotary is removed. The cutting blade can be reliably cut, and the blowing blade body has a blowing surface portion that generates wind in the direction of raising foliage toward the space portion, and the foliage in the state raised in the space portion is formed at the tip of the blowing surface portion. Since the cutting blade for cutting is formed, the structure for cutting the foliage hanging from the surface of the ridge can be obtained simply and inexpensively.

According to the second aspect of the present invention, when the multi-sheet covering the ridge surface is pressed by the multi-sheet presser in the foliage inlet, the multi-sheet is cut by the cutting blade when cutting the foliage with the cutting blade. The foliage can be reliably cut without tearing the sheet by entanglement.

[Brief description of the drawings]

FIG. 1 is a side view of an onion digging machine showing an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is an explanatory view showing an operation state of digging onion in the same.

[Explanation of symbols]

 3 Foliage cutting section 32 Hollow covering body 33 Foliage cutting rotary 40 Foliage inlet 41 Space section 42 Multi-sheet holding body 43 Rotating shaft 44 Blow blade 45 Blowing surface 46 Cutting blade A Onion B Foliage C Multi-sheet D ridge

Claims (2)

[Claims] 1. An onion digging machine provided with a foliage cutting part for cutting foliage of onions cultivated in a ridge, wherein the foliage cutting part has a foliage inlet opening on a lower surface and the foliage retraction in a front part. A hollow covering body formed with a space communicating with a mouth, and a foliage cutting rotary provided at a rear portion of the space inside the hollow covering and driven to rotate, the foliage cutting rotary is rotatably driven Shaft, and a blower blade provided on the rotation shaft, the blower blade has a blower surface that generates wind in a direction that causes foliage toward the space, and the blower surface of the blower An onion digging machine, wherein a cutting blade for cutting foliage raised in the space is formed at a tip end. 2. The onion digging machine according to claim 1, wherein a multi-sheet presser for pressing the multi-sheet covering the surface of the ridge is provided in the foliage inlet of the hollow cover.