JP2000125636A - Root stock harvester and foliage guide therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a root stock harvester that can efficiently treat the foliage part of a root crop plant so that the foliage parts may be plowed into field soil, and can harvest the root crops (in ball shapes) so that the root crops may not be disturbed by the foliage parts, when the root crops are dried under sunshine or collected from the crop field. SOLUTION: The root crops w growing on a ridge face U are pulled out, white a machine body is running, and conveyed by a crop conveyer 9 backwards behind the machine body. This root stock harvester is equipped with cutters 14, 45 working so that they may shorten the foliage parts w1 of the root crops w by cutting them at their beginning positions as well as at the midway positions of their foliage length, with a foliage conveyer 47 that works to convey the shortened foliage parts w3 from the end edge of the conveyer 9 backward, and with a foliage guide 50 that receives the foliage parts w3 sent out by a foliage-sending out means 47, then transfers them in the transverse direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rhizome harvester and a foliage derivative thereof which operate so as to continuously extract onions, carrots and the like planted in rows on a ridge.

[0002]

2. Description of the Related Art There is already a rhizome harvester that pulls onions vegetated on a ridge surface while the machine is running, and conveys the rearward to the rear of the machine while maintaining its upright posture by a crop carrier.
In this type of harvester, generally, during transport of onions by the crop transport device, the foliage is cut off and separated from the bead, the bead is released onto the ridge surface, and the foliage is released into the vicinity of the ditch on the ridge surface. It has been made to be.

[0003]

In the above-mentioned treatment by the conventional rhizome harvester, the foliage is released to the field with its full length, so that the foliage cannot be efficiently plowed during tilling after harvesting. A problem arises. The present invention
Another object of the present invention is to provide a rhizome harvester that can rationally solve such problems, and to provide a foliage derivative used in the rhizome harvester.

[0004]

In order to achieve the above object, the present invention relates to a rhizome harvester which pulls out a rhizome crop vegetated on a ridge surface during running of the fuselage and transports the crop to the rear of the fuselage by a crop transport device 9. Cutting means for cutting and separating the foliage portion of the crop being transported by the crop transport device 9 at its original position and midway along its length to shorten it, and transporting the shortened foliage piece A foliage feeding means operable to send out from the transport end of the apparatus to the rear, further provided with foliage at the rear of the transport end of the transport apparatus to receive the foliage pieces sent by the sending means and move the foliage laterally. A derivative is provided.

In the present invention, the cutting means, the foliage sending means and the foliage derivative move the foliage pieces, which have been cut and separated in a short direction, to the lateral outer side of the ridge surface. It is discharged onto the ridge from the transport end. Therefore, the ball and foliage pieces are present in a state of being separated on the field.

The above invention is embodied as follows. That is,
The foliage derivative is formed by a plate member that is configured to slide the foliage pieces from the rear of the crop transport device to the lateral outside. According to this, the action of inducing the foliage pieces can be obtained with a simple configuration.

The cutting means comprises a lower rotating blade for cutting the original position of the upright foliage, and an upper rotating blade for cutting the middle of the length above the original position so that the height can be changed. With a blade. According to this, the foliage separated from the root is vertically moved at an arbitrary position along the length of the foliage.
Will be divided.

Further, the foliage feeding means has a vertical rotation shaft extending the rotation center axis of the upper rotary blade, and a single scraping blade is fixed or a plurality of scraping blades are moved up and down along the height of the rotation shaft. It shall be fixed in a multi-stage arrangement. According to this, the structure becomes simpler than the case where the vertical rotation shaft is provided alone, and the scraping action when the height of the upper rotary blade is changed because the scraping blade is vertically displaced together with the upper rotary blade. It will be performed accurately.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. 1 is a plan view of the harvester according to the present invention, FIG. 2 is a side view operation explanatory view of the harvester, FIG. 3 is a power transmission system explanatory view of the harvester, FIG. 4 is a front view of the harvester, FIG. 5 is a right side view of the harvester, FIG. 6 is a left side view of the harvester, FIG. 7 is a side view explanatory view showing an operation of a part of the harvester, and FIG. 8 shows a main part of the harvester. FIG. 9 is a rear view showing a main part of the harvester.

In FIG. 1 and FIG. 2, reference numeral 1 denotes a vertically-rotating weed raising device provided at a forefront portion of the body at predetermined intervals in the left-right direction. This elevating device 1 is used for
The foliage w1 of the crop w, such as onion, is swept up and caused by the locking projection 1a moved obliquely upward f1 shown in FIG.

A weed stick 2 extends obliquely forward and downward from the tip of each weed raising device 1. This weeding stick 2 is for pushing the foliage w1 of the crop w at the forefront of the fuselage while the fuselage is moving.

Numeral 3 denotes a raking device composed of a pair of right and left raking main portions 4, 4 for orbiting the locking projections 4a of each raking main portion 4 from the outside of the distal end of the raking device 3 to a central portion. By moving and then moving diagonally upward, the foliage w1 caused by the raising device 1 is scraped into the lower center of the raking device 3 and pushed up to the diagonally upward f2 shown in FIG.

Reference numeral 5 denotes a drawing and conveying device comprising a pair of right and left drawing and conveying main parts 6 and 6. The main part 6 of each pull-out conveyance is shown in FIG.
And a plurality of pulleys 6a and 6b shown in FIG. The transport belts 7, 7 of these main parts 6, 6 are opposed to each other to form a pull-out transport path k between the belts 7, 7.

The pulling and conveying device 5 receives the relatively upper portion of the foliage w1 scraped by the raking device 3 at the conveying start end of the pulling and conveying path k, and subsequently holds it by the pulling and conveying device 5 as shown in FIG. In this transporting process, the crop w of the ridge surface U dug up by the excavating blades 8 and 8 shown in FIG. There is something.

As shown in FIGS. 5 and 6, a lower conveyor 9 is provided below the pull-out conveyor belts 7, 7 to convey rhizome crops substantially backward and horizontally. As shown in FIGS. 8 and 9, the lower transfer device 9 includes a pair of left and right lower transfer main parts 10, 10, the front and rear of which is inclined more gradually than that of the pull-out transfer device 5.

Each lower transport main part 10 is a pair of front and rear end pulleys 1 rotatably mounted on a lower transport plate frame 10f via longitudinal axes 11s, 12s and bearings 11j, 12j.
An endless lower transport belt 13 is looped around the intermediate pulleys 1 and 12 and two intermediate pulleys 11m and 12m that are pivotally mounted between these pulleys. At this time, the front vertical axis 11s is rotatable at a fixed position via a bearing (not shown) fixed to the body fixing section, and each lower transport main part 10 is swingable around its corresponding vertical axis 11s. Eggplant

On the other hand, a support plate F1 bent in a hook shape is erected from each of the bar-shaped support frames F arranged in the front-rear direction and left and right forming the body fixing portion, and each support plate F1 and its corresponding lower portion are provided. The transfer plate frame 10f is coupled via a long hole a and a bolt fastener b so that the relative position can be adjusted and changed. The pair of lower transport belts 13 are opposed to each other,
The space between the belts 13 is a transport path k1 at the base of the foliage w1. As shown in FIG. 8, the transport path k1 has a wedge-shaped rhizome-entering space c formed in a plan view at the transport start end side, and the lower transport belts 13 are substantially in close contact with each other at the rear portion.

The lower transport belt 13 at the rear of the transport path k1,
It is necessary to change the relative position of 13 according to the foliage diameter of the rhizome crop w to be transported. At this time, the lower transport essential parts 10, 10 are respectively operated by operating the bolt fasteners b to correspond to the corresponding vertical lengths. The swing displacement is performed around the shaft 11s. In the above-described lower transfer device 9, the left and right lower transfer main parts 1
0 and 10 can be pivotally operated around the corresponding vertical axis 11s.
It is permissible for only 0 to be swingable about its corresponding longitudinal axis 11s.

As shown in FIGS. 2 and 7, a first cutting device 14 is provided between the pull-out conveying device 5 and the lower conveying device 9, and the cutting device 14 is provided at a tip end of the main body frame 141. The disk-shaped upper rotary blade 143 is fixed to the vertical rotation output shaft 142.

The cutting device 14 is mounted on the fuselage so that the fixed height position can be changed and adjusted. Specifically, as shown in FIG. 7, a support plate 14 provided integrally with the fuselage fixing portion is provided.
4 to fix the guide plate 145 having the long hole d formed therein and to slidably displace the main body frame 141 in the long hole d, and to fasten and fix the main body frame 141 to an arbitrary position of the long hole d. Is attached.

In FIGS. 1, 5 and 6, 15 and 1
5 is a traveling wheel mounted on the body fixing part, 16 is an engine fixedly mounted on the body fixing part, 17 is a bearing part supporting a drive shaft 18 for transmitting the rotation of the engine 16 to the pulling and conveying device 5, 19 Is a gage wheel for holding the front part of the body at an appropriate height, 20 is a rotation operation handle for vertically displacing the gage wheel 19 with respect to the body, 21 is a control handle,
Reference numeral 22 denotes a foliage discharge device capable of being transported from the inside of the upper end of the left pull-out and transporting main part 6 to the outside in the arc direction, and 23 is a device which is moved back and forth through a crank 23a (see FIG. 3). It is a connecting rod for vibrating around the fulcrum 24.

The power transmission system of the engine 16 is configured as follows. That is, as shown in FIG. 3, the rotation of the engine 16 is transmitted to the transmission case 2 via the rigid transmission member.
5 and a transmission case 26 and a final case 27 which project from the transmission case 25 to the left and right.
To the traveling wheels 15 via

A transmission case 28 in the front-rear direction is provided at the front of the transmission case 25, and a work output shaft 29 in the transmission case 28 and a rigid transmission system in the transmission case 25 are connected via a work clutch 30. Transmission case 2
8, a lateral drive case 31 is continuously provided, and a lateral drive shaft 32 in the drive case 31 and a work output shaft 29 are interlocked and connected via a bevel gear 33.

A crank 23a is formed at each of the left and right ends of the lateral drive shaft 32. A worm 34 is provided at the center of the lateral drive shaft 32, and the lateral drive shaft 32 and the pull-out transport drive shaft 36 are interlocked via a worm wheel 35 meshed with the worm 34.

The drive shaft 36 is connected to each of the main parts 6 and 6
The pulley 6a is connected to the rear pulley 6a of FIG. 1 via the drive shaft 18 and a chain transmission mechanism.
The rotation center shaft 37 of the front pulley 6b, which transmits the rotation of the lower pulley 6b via the conveyor belt 7, is connected to the input shaft of the scraping device 3 via the chain transmission mechanism and the bevel gear, and the respective vertical axes of the front side of the lower transfer device 9. Link with 11s.

A forward drive cylinder 38 extends from the right end of the lateral drive case 31, and a forward drive shaft 39 and a lateral drive shaft 32 in the drive cylinder 38 are interlocked via a bevel gear 40. 39 and an upper sprocket shaft 41 for rotating the raising device 1 are interlocked via a bevel gear 42.

The worm 34 of the lateral drive case 31
A transmission case 43 for the cutting device is extended from the position between the existing position and the right crank 23a existing position so as to be rotatable around the lateral drive shaft 32, and the left side surface of the front end of the transmission case 43 and the cutting device 14 are connected. Linked and linked.

At this time, the transmission case 43 extends along the vicinity of the lower portion of the pulling and conveying device 5 and is formed of a rear case 43a and a front case 43b, and a rear portion of the front case 43b is formed inside a front portion of the rear case 43a. The entire length is expanded and contracted by the sliding displacement of these fitting portions in the longitudinal direction. The body frame 141 of the cutting device 14 can swing about a specific horizontal axis with respect to the transmission case 43.

The transmission structure in the transmission case 43 is as follows: the transmission case 43 is provided with a rigid rotary shaft 44 which is interlocked with the transverse drive shaft 32 via a bevel gear 32a. The front end of the rigid rotation shaft 44 is linked to a rotation input shaft (not shown) of the cutting device 14 via a bevel gear. The rigid rotation shaft 44 is connected to the rear case 43.
a and a front rotation shaft 44b mounted integrally with the front case 43b, and a rear spline hole of the rear rotation shaft 44a and a rear part of the front rotation shaft 44b. The spline shaft portion is fitted inside, and the entire length is expanded and contracted by the sliding displacement of these fitting portions in the longitudinal direction.

Next, the characteristic configuration of this embodiment will be described. As shown in FIG. 8 and FIG.
0, a second cutting device 45 for cutting the root of the foliage w1 of the rhizome crop w is provided. Specifically, the second cutting device 45 is wound around the upper surface of the left rear pulley 12. A disk-shaped lower rotary blade 46 is fixed to a position slightly above the conveyor belt 13.

The upper rotary blade 143 and the lower rotary blade 4
6, a foliage sending means 47 is provided. Specifically, a downward extension shaft 48 is integrally connected to a rotation output shaft 142 of the first cutting device 14 and an appropriate height of the extension shaft 48 is provided. The two scraping blades 49, 49 are fixed in two positions in the position.

At this time, each of the scraping blades 49 is provided with three projections e made of a rubber material from the boss portion and arranged in an equiangular arrangement in the horizontal radial direction. It is to be noted that only one scraping blade 49 may be provided, and in this case, it is preferable that the scraping blade 49 be fixed to the extension shaft 48 between the preceding two scraping blades 49, 49.

The foliage derivative 50 is provided behind the lower conveying device 9 via a support member (not shown).
The derivative 50 receives the foliage piece w3 sent out by the sending means 47 and moves the same laterally. Specifically, the plate member is bent into a substantially rectangular shape in a side view to form the partitioning surface 50a. And a sliding surface portion 50b, and the plate member is gradually moved rearward from the right side to the left side of the lower transfer device 9 and gradually lowered.

Next, the operation when the onion w is harvested by the harvester configured as described above will be described. 1, 2, and 4
When the airframe is run along the ridge U as shown in, the digging blades 8, 8 dig the ridge surface U at an appropriate depth,
The pull-out transport device 5 pulls the onion w while holding the relatively upper portion of the foliage w1 and transports the onion w obliquely upward and f3 behind.

The onion w conveyed in this manner is supplied below the foliage w1 to the conveying start end of the lower conveying device 9, and thereafter, the lower conveying belts 13, 13 sandwich the original part of the foliage w1 and are directed almost rearward. Convey horizontally.

During the transport by the pull-out transport device 5 and the lower transport device 9, the pull-out transport device 5 pulls the foliage w1 upward, while the lower transport device 9 pulls the lower transport belt 13, 1
The ball portion w2, which is the root portion, is locked via 3 to prevent its rise. Therefore, the lower conveyor belts 13 and 13
The pulling and conveying device 5 applies a pulling force to the foliage w1 located between the lower conveying device 9 and the tensioning state by holding the neck portion 1 in the rearward direction.

Thus, the foliage w by the lower conveying device 9 or the like
When the transfer of No. 1 progresses, in this transfer process, the upper rotary blade 143 of the first cutting device 14 cuts and separates the middle of the length of the foliage w1 at a fixed height position, and on the other hand, the lower side of the second cutting device 45 The rotary blade 46 cuts and separates the base of the foliage w1.
As a result, the foliage w1 is separated from the ball w2, and is cut and separated at the intermediate position into two upper and lower parts. The foliage piece w3 forming the lower part of the foliage w1 is no longer in an isolated free state. The rotation of the protruding portion e of the scraping blade 49 of the foliage sending means 47 causes the upper portion of the lower transport device 9 to be repelled or pushed backward.
At this time, the fact that the scraping blades 49, 49 are provided in a two-stage shape allows the foliage piece w3 in the free state of the upright posture to be stably sent backward.

The foliage piece w that has reached the rear of the lower conveying device 9
A part of the foliage 3 collides with the partition surface 50a of the foliage derivative 50 and is prevented from moving backward, and falls. The foliage piece w3 that falls in this way or directly from the rear end of the lower conveying device 9 The dropped foliage piece w3 is received by the sliding surface portion 50b, slides laterally on the upper surface thereof, finally moves laterally outward of the ridge surface U, and falls on the ridge shoulder or the ridge groove m. .

On the other hand, the ball portion w2 in a state where the foliage portion w1 is separated from the rhizome crop w has its neck portion connected to the transport belts 13,13.
After being transported to the transport end of the lower transport device 9 while being pinched by the above, it is dropped onto the ridge surface U from between the lower transport device 9 and the foliage derivative 50. Since this trough w2 is dropped from the lower conveying device 9 located at a relatively low position of the machine body, no damage is caused by the impact at the time of dropping.

The tip of the foliage w1 further cut off by the upper rotary blade 46 is nipped and transported further upward by the pull-out transporting device 5, and then transported laterally by the foliage discharging device 22, passing through the side of the machine body. Drops into ridge shoulders and ridges. Therefore, after the harvesting process is performed, only the ball portions w2 are collected in a row on the ridge surface U, and the foliage portions w1 are divided into upper and lower portions and shortened, and are separated from the ball portions w2. Collected in rows.

During the harvesting operation, when it is desired to change the cutting position of the foliage w1 by the upper rotary blade 143 to any one of upper and lower sides, the nut body 146 is loosened, and the main body frame 141 is slid and displaced along the long hole d. The fastening operation of the nut body 146 is performed again.

In the above embodiment, the left end of the raking device 3 is aligned with the left end in the traveling direction of the ridge surface U. However, the right end of the raking device 3 is set to the ridge surface. U
The foliage derivative 50 drops the foliage piece w3 into the ridge shoulder or ridge groove m on the right side in the traveling direction.

[0043]

According to the present invention described above, the foliage is cut short and separated and dropped to a position distant from the ball, leaving only the ball on the ridge surface. It will not be mixed with the ball, and the appearance of the field after harvest will be improved, and the foliage can be efficiently plowed, and the ball will be dried in the sun without being disturbed by the foliage At the same time, the ball on the ridge can be efficiently picked up.

According to the second aspect, the foliage derivative can be easily formed.
According to the method described in (1), the foliage can be vertically divided into two at an arbitrary position in the middle of the length.
According to what is described in, the structure can be made simpler than in the case where a vertical rotation shaft for foliage delivery means is provided alone,
Also, since the scraping blade moves up and down together with the upper rotating blade,
Even when the height of the upper rotary blade is arbitrarily changed, the scraping action is accurately performed.

[Brief description of the drawings]

FIG. 1 is a plan view of a harvester showing one embodiment of the present invention.

FIG. 2 is a side view operation explanatory view of the harvester.

FIG. 3 is an explanatory diagram of a power transmission system of the harvester.

FIG. 4 is a front view of the harvester.

FIG. 5 is a right side view of the harvester.

FIG. 6 is a left side view of the harvester.

FIG. 7 is an explanatory side view showing an operation of a part of the harvester.

FIG. 8 is a plan view showing a main part of the harvester.

FIG. 9 is a rear view showing a main part of the harvester.

[Explanation of symbols]

 U ridge surface w Onion (rhizome crop) w1 foliage w3 foliage piece 5 pull-out transport device 9 lower transport device (crop transport device) 14 first cutting device (cutting device) 45 second cutting device (cutting device) 46 lower side Rotating blade 47 Foliage sending means 48 Extension axis (vertical rotation axis) 49 Raising blade 50 Foliage derivative 142 Rotation center axis (Rotation output axis) 143 Upper rotation blade

Claims (5)

[Claims] 1. A rhizome harvester that pulls up a rhizome crop vegetated on a ridge surface while the machine is running, and conveys the crop to the rear of the machine by a crop carrier. A cutting means is provided which operates to cut and separate at a position and halfway along the length, and a foliage sending means is provided which operates to feed the shortened foliage piece backward from the transport end of the transport device. A rhizome harvesting machine further provided with a foliage derivative that receives the foliage piece sent out by the sending means and moves it laterally, behind the transport end of the transport device. 2. The rhizome harvesting machine according to claim 1, wherein the foliage derivative is formed by a plate member which allows the foliage pieces to slide down from the rear of the crop transport device to the outside. 3. The cutting means comprises a lower rotary blade for cutting the original position of the upright foliage, and an upper side for cutting the middle of the length above the original position so that the height can be changed. The rhizome harvester according to claim 1, further comprising a rotary blade. 4. The foliage feeding means has a vertical rotation shaft extending from the rotation center axis of the upper rotary blade, and a single scraping blade is fixed or a plurality of scraping blades is fixed in the middle of the height of the rotation shaft. 4. The rhizome harvester according to claim 3, wherein the rhizomes are fixed in a multi-stage arrangement in a vertical arrangement. 5. A rhizome harvesting machine which operates to pull up a rhizome crop vegetated on a ridge surface during running of the machine and to convey the crop to the rear of the machine in a substantially horizontal direction. A foliage of a rhizome-harvesting machine, wherein the foliage is configured to receive a foliage piece which is cut short and separated and sent out to the rear of the crop transport device, and is moved laterally outward of the ridge surface. Derivatives.