JP2001178227A - Root vegetable crop harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a root vegetable harvester capable of making a soil swollen and soft to a correctly adjusted depth according to the field and the growth state of the crops in assisting the pulling out of the crops by arranging a left and right pair of digging out blades 8, 8 at the downward direction of the beginning end position of a pulling out device 5 for nipping the stem and leaf part of the root vegetable grown on a ridge surface and conveying in its inclined rear direction. SOLUTION: This root vegetable harvester is constituted so as to be able to adjust the depth of the soil made as swollen and soft with the digging out blades 8, 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rhizome crop harvester for digging and harvesting rhizome crops such as onions and carrots.

[0002]

2. Description of the Related Art Conventionally, a rhizome crop harvesting machine provided with a weeding device for scooping and separating the foliage of a rhizome crop, and having a drawing device and a digging blade connected to the rear of the weeding device, has a vibration. An example in which a digging blade is mounted is known.

However, in this type of harvester, the relative position between the operation start position of the pulling device and the operation position of the excavating blade is generally fixed. In this case, depending on the field conditions and crop conditions, the rhizome crop is not used. Because the root growth conditions are different, the load applied to the pulling device also fluctuates, and in conjunction with the pulling action, the position of the foliage pinching varies, and the cutting position of the foliage is not fixed, causing work problems and lowering work efficiency There is a potential problem that induces

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the prior art.
Adjusting the mounting position of the digging blade with respect to the starting position of the pulling device in accordance with the growing condition of the root of the rhizome crop depending on the field conditions and crop conditions, and the timing of the action to expand and soften the field and the timing of the pulling action Rhizome crop harvester is constructed to make it possible to adjust the load properly and to make the load applied to the pulling-out action constant with the help of the field softening action, to stabilize the pinching position of the foliage, and to enable smooth harvesting. Provided at

[0005]

In a rhizome crop harvester provided with a weeding device for scooping and shaping the foliage of a rhizome crop, and having a drawing device and a digging blade connected to the rear of the weeding device, a pulling device is provided. The working position of the excavating blade can be adjusted back and forth with respect to the starting position of the excavating device, so that a position advanced or retracted from the starting position of the extracting device can be selected as the operating position of the excavating blade, so that the pulling action is achieved. The action position of the excavating blade suitable for the start of the cultivation can be selected according to the growth status of the rhizome crop.

[0006] In a rhizome crop harvesting machine provided with a weeding device that scoops and separates the foliage of a rhizome crop, and in which a pulling device and a digging blade are connected behind the weeding device, vibration is applied to soften the soil. The structure of the excavator blade is variable, allowing the relative position between the vibration fulcrum and the operating point of the excavation blade to be selected, and the range of application to field conditions and crop growth conditions has been widened.

[0007] In a rhizome crop harvesting machine provided with a weeding device for scooping and separating the foliage of rhizome crops, and having a drawing device and a digging blade connected to the rear of the weeding device, the starting position of the drawing device is determined. The working position of the digging blade is set to be a leading position so that the soil is always in a softened state at the time of the pulling action.

A rhizome crop harvester equipped with a weeding device that scoops and sorts the foliage of a rhizome crop, and has a pulling device and a digging blade connected to the rear of the weeding device. If the aircraft lays down or grows up in a growing state, even if work is performed at a slower aircraft speed, pulling out so that the excavating blade follows the pulling action and swells and softens the soil, even when working at a slower aircraft speed. The operation position of the digging blade is retracted from the start position of the device, so that foliage is easily caused.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention makes it possible to adjust the mounting position of a digging blade so that it can be adapted to the root growth state according to field conditions and the growth status of a rhizome crop when harvesting with a rhizome crop harvester. Another object of the present invention is to provide an onion-harvesting machine with a digging blade configured to make the digging operation smooth by adjusting the timing of the pulling action and the field softening action.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a digging blade and a pulling-out device according to a main part of the present invention, and shows a side relative mounting position of the digging blade and the pulling-out device. FIG. 2 is a side view of the relative positions of the digging blade, the weeding device, and the gage wheel according to the main part of the present invention. FIG. 3 is an overall side view of an onion harvesting machine according to an embodiment of the present invention, and FIG. 4 is an overall front view thereof. FIG. 5 is a front view showing the configuration of a digging blade with a digging spatula, and FIG. 6 is a side view of the same.

First, the overall structure of an onion harvesting machine as an embodiment will be described with reference to FIGS.
(1) is a weeding device mounted on the foremost part of the fuselage. The weeding device is composed of a plurality of vertical weeding bodies (1b) (1b)... Provided at regular intervals in the horizontal direction. (1b) a drive sprocket and a chain with a pull-in tine (1a) wound around a driven pulley and a weeding rod (1c) and a weeding plate (1d) fixed to the tip of a weeding body (1b). The raising tine (1a), which is moved obliquely upward (U1) while the body is in progress, is configured to push and raise the foliage of crops such as onions.

A weed stick (1c) fixed to the tip of each weed body (1b) extends obliquely forward and downward. Is to scoop. And the weeding board (1d) is the gauge wheel (29)
The side weeding stick (1c) is fixed to the side and the gage ring (29)
In order to prevent the foliage from being rolled up by the gage ring (29).

(3) is a raking device comprising a pair of left and right raking transport bodies (3a) and (3b) formed by winding a belt with a protruding part (4). By orbiting from the outside of the tip of the device (3) toward the center and then linearly obliquely upward and rearward,
The foliage of the crop caused by the weeding device (1) is scraped into the lower center of the scraping device (3) and pushed up obliquely upward (U2).

(5) A pull-out transporter (5a) (5b), which includes an endless belt transport belt (6) and a plurality of pulleys (7a) (7b) and is constructed so as to face a pair of left and right sides. 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).

That is, the pulling-out device (5) inherits a relatively upper part of the foliage stalked by the raking device (3) at the transport start end of the pull-out transporting path (H).
And is conveyed diagonally upward and backward (U3). During this conveyance process, the pair of left and right excavating blades (8) and (8) disposed below the drawing device (5) vibrate and expand. The crop is pulled out from the ridged surface as the aircraft advances, and is conveyed obliquely upward and rearward.

Drilling blades (8) and (8), which are essential parts of the present invention.
1 will be described with reference to FIGS.
The digging blade (8) is vibrated by a swing arm (18), and the digging blade (8) pivots to the frame (19) via a mounting plate at a vibration fulcrum (c). And is pivotally connected to the swinging arm (18) at the operating point (a) or (b). In this case, the working position (e) or (f) of the cutting edge of the excavating blade (8) moves forward and backward depending on which of the action base points (a) and (b) is selected. ) Is adjusted so that there is no problem even if a difference occurs in the root growth state depending on field conditions or crop conditions. The pulling action by the pulling device (5) and the excavating blade (8) It is configured to be able to adjust the timing of the soil swelling action due to.

Further, the excavating blade (8) has a front hook shape, and the cutting edge portion abuts the soil substantially horizontally to make the periphery of the root part soft and soft, but as shown in FIGS. A digging spatula (10) is fixed to the hook-shaped cutting edge of (8), and the digging spatula (10) is formed into a fork shape, and the back of each fork is formed into an acute angle in cross section. It has improved penetration when entering the soil. At the same time, it vibrates integrally with the excavating blade (8) to scoop up the root vegetables and support the pulling action, and also has the effect of shaking off the clod attached to the roots.

A lower transfer device (9) is provided below the drawing device (5). The lower transfer device (9) includes a pair of left and right lower transfer bodies (9a) and (9b). Pulling device (5)
It is slower than that of Lower right and left carrier (9
a) (9b) is formed by winding a lower transport belt around a pair of front and rear pulleys, and these lower transport belts are opposed to each other, and pinch and transport the foliage between them as a lower transport path of the foliage. It is. In addition, these pre-processing units are axles
Is used as a rotation fulcrum to be integrally rotatable up and down.

As shown in FIGS. 3 and 4, (26) is a two-part traveling wheel mounted on the body, and (27) is a drive cable that supports a drive shaft for driving the pull-out device (5). (29) is a gage wheel for holding the front portion of the body at an appropriate height, and (30) is a gage for vertically displacing the gage wheel (29) with respect to the body. -A wheel adjusting handle.

Further, the weeding apparatus (1) is composed of a plurality of vertically-moving weeds (1b) (1b)..., And the drive system of each weeding body (1b) (1b). The weeding device (1) is integrated into the transmission tube (2) and integrated into the drive shaft, and the weeding device (1) is configured to be expandable and contractible to a fixed mounting frame (37). Is fixedly attached to the outer cylinder via a connecting plate, and the height above the ground can be arbitrarily adjusted to an appropriate height by a gage wheel adjusting handle (30).

Further, using the contact point of the gage wheel (29) as a fulcrum, the outer cylinder of the support cylinder and the weeding device (1), which are expansion and contraction portions of the pre-processing unit height adjustment device (37) for vertical adjustment, are provided. The working stroke of the inner cylinder can be effectively utilized by connecting and fixing the fixed mounting frame with the connecting plate and the mounting metal.

In addition, when viewed from the side, between the distal end of the weeding device (1) and the vertical direction at the operation start end position of the pulling device (5),
The connecting portion is set so as to connect the pre-processing unit height adjusting device (37) to the weeding device (1), and the height is adjusted when the pre-processing unit that rotates around the axle (A) is adjusted up and down. The vertical displacement of the pulling device (5) is made smaller than the vertical displacement of the adjusting device (37), and the vertical movement of the pulling device (5) is adjusted even if the vertical adjustment is performed based on the tip of the weeding device (1) in actual work. In order to minimize the influence on the vertical displacement, it is possible to clamp the foliage at a substantially fixed position and perform the pulling out operation, regardless of the growing condition of the harvested crop, so that the work in the subsequent process is smooth I have.

The output case connected to the front of the traveling transmission device (33) directly connected to the engine (E) has a built-in output shaft, and is linked to the output shaft to the drive case (27). The drive shaft of the built-in pull-out device (5) is a pulley (7
a) The pulling device (5) is driven via (7a), and the right and left chain transmission portions (28) connected to the pulley shafts of the lower left and right pulleys (7b) and (7b) of the pulling device (5). It is configured to branch to the driving of the pair of lower conveying devices (9), which is the same as the driving of the pair of left and right scraping devices (3) via (28), and to drive each pretreatment device. (31) is a steering handle, and (32) is a foliage discharging device.

The operation of harvesting onions by the onion harvesting machine constructed as described above will be described below. As shown in FIGS. 3 and 4, when the airframe runs along the ridge (W), the weeding rod (1 c) scoops up the foliage of the onion growing on the ridge surface. In order to adjust the ground height of the device (1) to an appropriate height, the adjusting handle (30) is turned to adjust the height of the height adjusting device (37) with the gage wheel (29) as a fulcrum. The ground height of the weeding device (1) is adjusted in accordance with the onion growth condition, the state of the foliage and the ridge height, and the raising tine (1a) is tilted upward (U) by the operation of the weeding device (1).
Move to 1) to stalk and raise the foliage, and then take over the raking device (3). The belt with projections (4) continues to move diagonally upward and backward (U2) to remove the foliage from the pulling device (5). The digging blades (8) and (8) swell the ridge surface at an appropriately adjusted depth according to this stroke, and the pulling device (5) is used to compare the foliage. The onion is pulled out while holding the target upper part, and the diagonally upper part (U
Convey to 3).

The stems and leaves of the onions conveyed in this way are supplied to the conveying start end of the lower conveying device (9), and thereafter the lower conveying belt clamps the lower part of the stems and leaves and conveys the rears in a substantially horizontal direction. It is.

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) moves the balls through the lower transport belt. Lock the part to prevent its rise. Accordingly, the lower transport belt is moved backward while holding the neck of the foliage, and the pulling device (5) applies a pulling force to the foliage positioned between the lower transport device (9) and tensions the foliage. State it.

When the transportation of the foliage by the lower transportation device (9) or the like proceeds in this way, in this transportation process, the cutting device cuts the foliage at a position adjusted to a certain height, and the onion thus treated is removed. It is discharged to the rear of the fuselage by the lower transport device (9). Such an operation is performed continuously for each onion extracted during the course of the machine.

The tip of the foliage cut off by the cutting device is further transported upward by the drawing device (5).
It is conveyed sideways by the foliage discharge device (32) and dropped to the side of the machine.

[0029]

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

In a rhizome crop harvester provided with a weeding device for scooping and separating the foliage of a rhizome crop, and having a drawing device and a digging blade connected to the rear of the weeding device, the starting position of the drawing device is determined. The operation position of the digging blade can be adjusted back and forth, and the position advanced or retracted from the starting end position of the extraction device can be selected as the operation position of the digging blade, so that it is adapted to the starting point of the extraction operation. Because the position of the excavating blade can be selected according to the growth status of the rhizome crop, the growth condition of the root of the rhizome crop may differ depending on the field conditions, and even if the adhesion of soil clumps to the root hair increases, In addition, the working position of the excavating blade can be advanced to support the pulling action, and the pinching position of the foliage at the time of pulling can be stabilized, and the post-work can be performed smoothly.

A rhizome crop harvester equipped with a weeding device that scoops and separates the foliage of rhizome crops, and has a drawing device and a digging blade connected to the rear of the weeding device, applies vibration to soften the soil. The relative position between the vibration fulcrum and the operating point of the excavation blade is variable, so that the cutting edge of the excavation blade can be variably adjusted back and forth according to field conditions and the growth of rhizome crops. The working position of the excavating blade suitable for the starting position of the digging can be set, so that the pulling out operation is facilitated and the stable harvesting work can be performed.

A rhizome crop harvesting machine provided with a weeding device for scooping up and separating the foliage of a rhizome crop, and having a drawing device and a digging blade connected to the rear of the weeding device. However, by setting the working position of the excavating blade ahead, the soil is always in a softened state at the time of the pulling action, so that the load applied to the pulling action becomes stable, The range of application for the growth status of rhizome crops could be broadened.

A rhizome crop harvesting machine equipped with a weeding device that scoops and separates the foliage of rhizome crops, and has a pulling device and a digging blade connected to the rear of the weeding device, works by reducing the machine speed. Even so, the working position of the digging blade was retracted with respect to the starting end position of the drawing device so that the soil swelling effect of the digging blade following the pulling action synchronized with the aircraft traveling speed In the case where the speed of the pulling-out action becomes relatively faster when the body speed is reduced in accordance with the foliage that has fallen or grown in the growing state of the foliage due to the field or crop conditions, the foliage first occurs due to soil resistance. After the portion is pulled, the soil swelling action of the digging blade works, which makes it easier to raise the foliage and prevents the digging operation from being disturbed.

[Brief description of the drawings]

FIG. 1 is a side view of a digging blade and a drawing device according to a main part of the present invention.

FIG. 2 is a side view of a digging blade, a weeding device, and a gage wheel according to a main part of the present invention.

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

FIG. 4 is an overall front view of the onion harvester according to the embodiment of the present invention.

FIG. 5 is a front view showing a configuration of a digging blade with a digging spatula according to a main part of the present invention.

FIG. 6 is a side view of a digging blade with a digging spatula according to a main part of the present invention.

[Explanation of symbols]

 E engine 1 weeding device 3 raking device 5 pulling device 8 excavating blade 9 lower transporting device 18 swing arm operating point b operating point c vibration supporting point d pulling device start end position e operating position f operating position 26 traveling wheel 29 Gauge wheel 30 Gauge wheel adjusting handle 33 Traveling transmission device 37 Height adjustment device for front of body H Pull-out transport path W Ridge

Claims (1)

[Claims] 1. A pair of left and right excavating blades for expanding and softening soil are disposed below a starting position of a pulling device that sandwiches the foliage of a rhizome crop grown on a ridge and conveys the diagonally rearward and upward direction. A rhizome crop harvester, wherein the excavating blade is configured to be capable of adjusting the depth at which the soil is softened.