JPH11318157A - Rhizome crop harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject rhizome crop harvester capable of digging up rhizome crops in a tilled and softened ridge as in a state in which the ridge is covered by a film for mulch culture, cutting foliage portions, and subsequently performing film-removing work and harvesting work at the same time by providing the harvester with specific lower conveyors. SOLUTION: A harvester for rhizome crops grown on a ridge surface. This harvester is provided with pairs of right and left lower conveyors 9 separately for each of rows of crops to be harvested in a single process under a pair of pulling apparatuses 5 consisting of an endless belt. Further, said harvester can be constructed in such a manner that lower conveyors 9 separately constructed for each row to be harvested in a single process are corresponded to a pair of pulling apparatuses 5 consisting of an endless belt, and the pair of pulling apparatuses 5 nip and convey, at one place, foliage portions of plural rows which have been nipped by the lower conveyors 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rhizome crop harvesting machine used for harvesting rhizome crops in mulch cultivation in addition to ordinary bareland cultivation.

[0002]

2. Description of the Related Art A conventional plant is provided with a weeding device for scooping up and separating the foliage of a rhizome crop, and pulling out a rhizome crop obliquely upward and rearward by a pulling device comprising a pair of endless belts. BACKGROUND ART There is known a method in which an excavated rhizome crop is conveyed obliquely upward and rearward and discharged to the rear or side of the machine for collection and harvesting.

[0003] However, in this type of harvester, an apparatus is generally configured in consideration of only a harvesting operation of a rhizome crop cultivated barely on a ridge surface. In the harvesting operation, there is a problem that the film covering the ridge surface becomes an obstacle, and the operation of pulling out the rhizome crop cannot be performed smoothly.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the prior art.
Developed a device configuration that allows the rhizome crops to float on softened ridges in a film-covered state for multi-cultivation, cut off the foliage, and then harvest in conjunction with the film peeling operation. To provide a harvested rhizome crop harvester.

[0005]

Means for Solving the Problems In a harvester for rhizome crops grown on a ridge, a pair of endless belts are individually pulled under a pulling device consisting of a pair of endless belts, with respect to the number of harvested lines in the same stroke. A rhizome crop was floated on a softened ridge without digging up by attaching a lower conveying device having the above configuration.

[0006] Two sets of lower transporting devices, each of which is individually configured for each strip to be harvested in the same process, are made to correspond to a pulling device composed of a pair of endless belts, and the foliage of two rows that is held by the lower transporting device. Was designed so that one set of pulling-out devices could pinch and convey at one location to avoid overlap between the devices.

In a rhizome crop harvester grown on a ridge, two sets of lower conveying devices are arranged below a pulling device consisting of a pair of endless bands, and the lower conveying device is formed by the drawing device. It is arranged so as to be left-right symmetrical with respect to the pulling-out conveyance path, so that the cutting positions on the left and right sides are made uniform even if the foliage is cut simultaneously for every two rows.

Further, the lower conveying device is brought close to the ridge surface, the rhizomes are floated on the softened ridge in a film-covered state for mulching, and the foliage is cut off in a semi-digged state without being completely dug. The harvest was collected after removing the foliage together with the film peeling.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a method for mulching cultivation in consideration of mulch cultivation in addition to harvesting of rhizome crops cultivated barely on a ridge when harvesting with a rhizome crop harvester. In the film-covered state, the rhizome crop is floated on a ridge that has been swelled, the foliage is cut off, the foliage is removed together with the film peeling work, and the device is devised to collect the harvested rhizome. It is to be implemented on crop harvesters.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a drawing device and a lower conveying device according to a main part of the present invention, in which a relative position between the drawing device and the lower conveying device is viewed from the front. FIG. 2
FIG. 1 is an overall plan view of an onion harvesting machine as an embodiment according to the present invention, and FIG. 3 is a side view of the same. FIG. 4 is a side view of a drive system in which a lower transfer device is connected to a drawing device and a scraping device, and FIG. 5 is a side view of the lower transfer device in section.
FIG. 6 is a plan view of a lower transport device having a pair configuration, and FIG.
FIG. 4 is a side view for explaining the operation of the cutting device when viewed from the side of the machine body. FIG. 8 is a sectional plan view of the driving device of the cutting device.

First, the overall structure of an onion harvesting machine as an embodiment will be described with reference to FIGS.
(1) is a weeding plate mounted at the forefront of the fuselage. The weeding plate (1) is extended diagonally forward and downward and scoops the foliage of the crops while the fuselage is in progress. . The weeding board (1) is composed of a left weeding board (1a) and a right weeding board (1b).
It is disposed in front of 9) to prevent the foliage from being rolled up by the gage ring (29).

(3) is a scraping device in which a pair of left and right squeezing conveyance bodies (3a) and (3b) formed by winding a belt with projections (4) are opposed to each other, and belts with left and right projections (4) and (4).
Is moved from the outside of the tip of the scraping device (3) toward the center, and then linearly moved diagonally upward and rearward to move the foliage of the crop to the lower center of the scraping device (3). It is configured to be scraped and pushed up diagonally upward (U1).

[0015] (5) is a pull-out in which a pair of left and right pull-out transporters (5a) and (5b) each including an endless belt transport belt (6) and a plurality of pulleys (7a) and (7b) are constructed. Device. The pair of endless belts (6) and (6) are opposed to each other, and pinch and transport the foliage between them as a pull-out transport path (H).

The drawing device (5) is a scraping device (3)
The relatively upper portion of the foliage that has been scraped is inherited at the transport start end of the pull-out transport path (H), and is nipped by the pull-out device (5) and transported diagonally upward and backward (U2). The crop is floated on the ridge surface that has been expanded by the vibration action of the pair of left and right excavating blades (8) and (8) disposed below the pulling device (5), thereby creating a semi-dig state.

Further, FIG. 1 shows a configuration related to a main part of the present invention.
Specifically, referring to FIG. 3, two sets of lower transfer devices (9) and (9) are provided below the drawing device (5), and the lower transfer devices (9) and (9) are As shown in FIG. 6 and FIGS. 1 and 2, respectively, a pair of left and right lower transport bodies (9a) and (9b)
The lower part of the grass plate (2) in front of and near each
Is installed. The inclination of the lower conveying devices (9) and (9) is substantially horizontal although the inclination is gentle upward. Each of the two left and right lower transport bodies (9a) and (9b) has a lower transport belt (13) on a pair of front and rear pulleys (11) and (12).
(13) is wound around the lower transport belt (1).
3) (13) oppose each other, sandwich and convey the foliage between each other as a lower conveyance path (K) of the foliage, and the position thereof is close to the ridge surface or the coated multi-use film (F). Arranged at height. In addition, the pulling device (5) and the scraping device (3) are configured to be vertically rotatable integrally with the axle (A) as a turning fulcrum.

As shown in FIGS. 5 and 6, a chain transmission device (20) is provided at the end of the lower transfer device (9). The chain transmission device (20) is mounted on two sets of lower transfer devices (9), respectively, and is provided with left and right lower transfer members (9a) (9).
One side of b) drives the other side. That is, the rear pulley on one side of the left and right lower transport bodies (9a) (9b).
A drive sprocket (23) is pivotally mounted on a drive center shaft (21) which is rotatably mounted on a shaft (12), and a chain (25) wound around the sprocket (23) and the passive sprocket (24). And a gear (17) axially mounted on a passive central shaft (16) to form a lower left and right transport body (9a) (9).
b) are connected and configured to rotate in synchronization.

Further, the chain transmission device (20) connects the left and right lower transporters (9a) and (9b), and the structure thereof is formed in a gate shape. It does not become an obstacle to pass through the transport path (K).

As shown in FIGS. 1 to 4, (26) (2)
6) are two running wheels mounted on the body, (2)
7) is a drive case which supports a drive shaft for driving the pulling-out device (5). It is axially mounted on the configured pretreatment unit height adjustment device (37). (30) is a gage wheel adjusting handle for vertically displacing the gage wheel (29) with respect to the body.

A cutting device (14) is provided between the drawing device (5) and the lower conveying device (9) as shown in FIGS. 2 and 3, and the cutting device (14) changes the height position. The cutting position of the foliage can be arbitrarily changed and adjusted in a stepless manner.

That is, as shown in FIGS. 7 and 8, the cutting device (14) comprises a front transmission case mechanism (14a), a rear transmission case mechanism (14b) and a main body (14c). The rear transmission case mechanism (14B) has a built-in transmission chain wound around two sprockets and a front transmission case via an intermediate shaft (14h) on which one of the sprockets is mounted. -A mechanism (14a) is connected and pivoted. The front transmission case mechanism (14a) also includes a transmission chain wound around two sprockets, and one of the input shafts (14e) on which the passive side sprockets are mounted is protruded. The projecting portion of the input shaft (14e) is inserted into the main body (14c) and serves as the input shaft of the main body (14c). In addition, the main body (14 c)
Is a front drive case mechanism (14) through a mounting metal (14f).
B)

A guide plate (14b) having a U-shaped cross section is fixed to a support plate (14a) fixed to the body by bolts.
An elongated hole (14g) is formed substantially at the center of the guide plate (14b), and a flange (14c) is provided on the main body (14c) as an attachment portion, and the flange (14c) is connected to the guide plate (14b). ) Is fitted into the long hole (14g), and is fastened and fixed with the square nut (14p) at an arbitrary position within the length of the long hole (14g).

As shown in FIG. 7, the cutting device (14) changes and adjusts the cutting position of the foliage along the long hole (14g) of the guide plate (14b). It is on the street. That is, when the cutting position is at the lowest position, the front transmission case mechanism (14a) and the rear transmission case mechanism (14)
B) is the drive shaft (14d) of the rear transmission case mechanism (14b)
Is located on a straight line including the mutual contact point (B1) as a rotation fulcrum (P), and the guide plate (14b) has a long hole (14g).
At the lowest point (A1), the main body (14c) pivotally attached to the passive sprocket portion of the front transmission case mechanism (14a) is fastened and fixed to the guide plate (14b) with a square nut (14p). .

Further, when changing and adjusting the cutting position of the foliage, the angled nut (14p) is loosened and the main body (14c) is moved along the long hole (14g) of the guide plate (14b). At the approximate center (A2) of the long hole (14g), the main body (1
4C), the contact (B1) becomes the contact (B
2), and the point is set as the lowest position.
(C) is moved upward and positioned at the highest point (A3) along the long hole (14g), the connecting contact (B2) becomes the connecting contact (B
3), and the relative positions of the front transmission case mechanism (14a) and the rear transmission case mechanism (14b) are in the shape of "".
The body (14 c) of the cutting device (14) is fastened and fixed at the highest point (A3) of the long hole (14g) with a horn nut (14p), and the cutting position of the foliage can be changed and adjusted to the highest position. .

A torque limiter (14k) is interposed between the passive sprocket of the front transmission case mechanism (14a) and the input shaft (14e), and the torque limiter (14k) is a clutch body (14m). ) And a sliding contact rotating body (14n) fixed to the input shaft (14e), and the sliding contact rotating body (14n) is provided.
A compression spring (14s) and a ball (14t) are inserted into this hole in the direction of the input shaft (14e), and the ball (14t) is engaged with the sliding contact surface of the clutch body (14m). A plurality of concave portions are provided at the same radial position, and the sliding contact rotating body (14
A transparent cover (14v) is fixed so as to surround the outside of n).

With this structure, even if an unexpected load is applied to the cutting device (14) by unexpectedly biting a stone or foreign matter, the ball (14t) is provided on the sliding contact surface of the clutch body (14m). From the cutting device (1)
4) It is possible to avoid the damage of each part beforehand.

As shown in FIGS. 2 to 4, the engine (E)
An output shaft is built in an output case connected to the front of the traveling transmission device (33) directly connected to the drive shaft, and a pull-out device (5) built in a drive case (27) interlocked with the output shaft. ) Drives the drawing device (5) through the upper left and right pulleys (7a) and (7a), and the lower left and right pulleys (7b) and (7b) of the drawing device (5) are axially mounted. A pair of left and right scraping devices (3) are driven via left and right chain transmissions (28) and (28) connected to the pulley shaft (7c), and are also pulled out as shown in FIGS. Left and right pulleys (7b) of the device (5)
Two pairs of lower conveyors (9) via a universal joint (7d) attached to the lower end of a pulley shaft (7c) on which (7b) is mounted.
(9) is configured to input data to one of the left and right sides.

The operation of harvesting onions with the onion harvesting machine constructed as described above will be described below. As shown in FIG. 1 and FIG. 2, when the airframe runs along the ridge (W), the weeding board (1) scoops up the foliage of the onion grown on the ridge.
At this time, in order to adjust the height of the weeding board (1) above the ground to an appropriate height, turn the adjusting handle (30) to rotate the gage wheel (2).
9) Using the fulcrum as a fulcrum, adjust the height of the height adjustment device (37).
Adjust the ground height of the weeding board (1) according to the onion growing condition, the state of the foliage and the ridge height, and scrape the foliage picked up by the weeding board (1) at an appropriate position. The belt with projections (4) of the scraping device (3), which continues to the device (3), moves diagonally upward and backward (U1) to scrape the foliage into the starting end of the pulling device (5). In accordance with this process, the excavating blades (8) and (8) make the ridge (W) soft and soft at an appropriately adjusted depth, and at the same time, the extracting device (5) holds the relatively upper part of the foliage. The onion is floated on the ridge surface and transported diagonally upward (U2) behind.

The foliage of the onion floating on the ridge surface is supplied to the transport start end of the lower transport device (9), and thereafter, the lower transport belts (13) and (13) clamp the lower portion of the foliage. It is transported to the rear part in a substantially horizontal direction. Since this operation is performed in a state where the multi-film (F) is covered, the lower conveying device (9) is configured to be substantially horizontal and close to the ridge.

During the transport by the pulling device (5) and the lower transport device (9), the pulling device (5) pulls the foliage upward, while the lower transport device (9) pulls the lower transport belt (1).
3) The ball portion is locked via (13) to prevent the ball portion from rising. Accordingly, the lower transport belts (13) and (13) are moved backward while holding the neck of the foliage, and the pulling-out device (5) applies a pulling force to the foliage positioned between the lower transporter (9). Give it and make it nervous.

When the transfer of the foliage by the lower transfer device (9) or the like proceeds in this way, the cutting device (1)
4) The cutting blade (14r) cuts the foliage at a position where the foliage is adjusted to a certain height, and the onion thus treated is released on the foliage on the multi-film (F), and the bead is multi-film. (F) is lifted on the ridges (W) while being covered, and is released along the rows at the time of growing.

As shown in FIGS. 1 and 2, the relative positions of the drawing device (5) and the two sets of lower conveying devices (9) and (9) are described in a front view and a plan view. A set of lower transfer devices (9) is disposed below the left pulling transporter (5a) and the right pulling transporter (5b) in (5), and the left and right pulling transporters (5a) and (5b) face each other. By arranging two sets of lower transfer devices (9) symmetrically with respect to the pull-out transfer route (H) formed in the same manner, the onions grown in two rows are simultaneously dug up in one stroke to remove the foliage. Even if the cutting is performed, there is no variation in the cutting position and the lengths are substantially the same, so that the collecting work in the subsequent process is not only easy, but also the package is balanced.

The foliage cut in this manner is released onto the multi-film (F). When the multi-film (F) is peeled off from the ridge (W), the foliage is also removed, and the ridge surface is removed. It is excluded from. The ball is raised on the ridge and can be collected easily.

[0033]

The present invention is embodied in the form described above, and has the following effects.

In a rhizome crop harvester grown on a ridge, a single pair of individual crops is provided for each of the number of crops to be harvested in the same process below a pulling device consisting of a pair of endless bands. By attaching the lower transport device, the lower transport device works according to the strip, so it is easy to process in close proximity to the ridge surface, and even in the state covered with the multi-film, the appropriate amount of rhizome crops can be floated on the bulging ridge. Thus, it is possible to provide a harvester suitable for multi-film cultivation, which enables a harvesting process corresponding to cutting and foliage cutting and multi-film peeling operations.

In a rhizome crop harvester grown on a ridge, a lower transport device individually configured for each strip to be harvested in the same process corresponds to a pulling device consisting of a pair of endless belts. The number of foliage for multiple rows held by the device is 1
Since the pulling device of the set is configured to be pinched and conveyed at one place, it is possible to avoid duplication of the devices without increasing the number of pulling device sets for each strip, and to reduce the weight of the rhizome crop harvester. Made available.

[0036] In a rhizome crop harvester grown on a ridge surface, two sets of lower conveying devices are disposed below a pulling device consisting of a pair of endless bands, and the lower conveying device is formed by the drawing device. Since it is arranged so as to be symmetrical with respect to the pull-out conveyance path, even if simultaneous cutting of the foliage is performed for every two lines, the cutting positions on the left and right become uniform, and the collection work becomes easier. Rhizome crops can be harvested without variation.

In the rhizome crop harvester grown on the ridge, the lower conveying device is arranged close to the ridge, and the foliage is cut off in a semi-digging state without completely digging. The foliage of the rhizome crop is cut and released onto the film in the film-covered state, and the foliage can be discharged simultaneously with the film peeling work. Embossed ball remains,
The collection work became extremely easy, and it became possible to provide a rhizome crop harvester suitable for the multi-cultivation method.

[0038]

[Brief description of the drawings]

FIG. 1 is a front view of a drawing device and a lower conveying device according to a main part of the present invention.

FIG. 2 is an overall plan view of the onion harvester according to the embodiment of the present invention.

FIG. 3 is an overall side view of the onion harvesting machine according to the embodiment of the present invention.

FIG. 4 is a side view of a drive system of a drawing device and a lower conveying device according to a main part of the present invention.

FIG. 5 is a cross-sectional view of a lower transfer device according to a main part of the present invention.

FIG. 6 is a plan view of a lower transfer device according to a main part of the present invention.

FIG. 7 is an operation explanatory side view of the cutting device according to the embodiment of the present invention.

FIG. 8 is a driving plane cross-sectional view of the cutting device according to the embodiment of the present invention.

[Explanation of symbols]

 E engine 1 weeding board 3 raking device 5 pulling device 8 excavating blade 9 lower transport device 14 cutting device 14 a front transmission case mechanism 14 b rear transmission case mechanism 14 c body 20 chain transmission device 26 Running wheel 29 Gauge wheel 30 Gauge wheel adjusting handle 33 Traveling transmission device 37 Body height control device H Pull-out transport path K Lower transport path W Ridge F Multi-film

Claims (4)

[Claims] 1. A rhizome crop harvester grown on a ridge surface, wherein a pair of left and right crops is individually arranged below a pulling device consisting of a pair of endless belts with respect to the number of crops to be harvested in the same process. A rhizome crop harvester characterized by having a lower conveying device having the following configuration. 2. A harvester for rhizome crops grown on a ridge surface, wherein a pulling device comprising a pair of endless belts is associated with a lower transport device individually configured for each strip to be harvested in the same process. A rhizome crop harvester characterized in that a set of pulling devices is configured to pinch and convey a plurality of foliage portions held by a lower conveying device at one place. 3. A harvester for rhizome crops grown on a ridge surface, wherein two sets of lower conveying devices are disposed below a pulling device comprising a pair of endless bands, and the lower conveying device is formed by the drawing device. Rhizome crop harvester, which is arranged symmetrically with respect to the pull-out transport path. 4. A rhizome crop harvesting machine for a rhizome crop grown on a ridge surface, wherein a lower conveying device is brought close to the ridge surface, and the foliage is cut off in a semi-dig state without completely digging. Harvester.