JPH08116749A - Digging part structure of root crop harvester - Google Patents

Abstract

PURPOSE: To minimize the entanglement of waste leaves, dust, etc., on a soil- cutting blade while keeping the soil-cutting action at the right and left sides of a carrot to be drawn out of the field. CONSTITUTION: This digging part is provided with a pull-out apparatus 1 to clamp the leaf and stalk of a carrot and pull out the carrot from the field and with a soil collapsing mechanism C to collapse the soil at the right and left sides of the carrot before the pull-out action of the pull-out apparatus 1. The soil-collapsing mechanism C is composed of a pair of right and left sailers 4, 4 freely rotatable on a vertical shaft Z, having an elongated blade form and placed in front of the pull-out apparatus 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a root vegetable harvesting machine which is mainly configured to dig root vegetables such as carrots and radishes and cut leaves.

[0002]

2. Description of the Related Art As the root vegetable harvesting machine mentioned above, the actual Kaihei 6-1
In Japanese Patent No. 65616, a root conveyor is composed of a pair of left and right belts by sandwiching the foliage of root vegetables such as carrots and radishes planted in a field and pulling the root vegetables diagonally upward at the rear of the machine to dig the root vegetables from the ground. There is known a root vegetable harvesting machine in which the root and root parts are cut and hung after being carried and positioned and carried so that the heads of the root vegetables main body come into contact with the left and right chain carrying mechanisms.

[0003]

SUMMARY OF THE INVENTION In the above root vegetable harvester, in order to facilitate the extraction of root vegetables, an earth cutting blade (see FIG. 2 of the above publication, which makes a score in the soil on both sides of the root vegetables in order to facilitate the extraction thereof. Reference numeral 4) is provided. As a result, the resistance of soil during extraction is reduced, and the root vegetables can be pulled out satisfactorily without breaking the foliage. However, the soil cutting blade is tangled with debris and dust,
There is a possibility that soil cutting resistance will increase or that the soil cutting blade will be substantially enlarged, which will cause the cut soil to easily become root vegetables and increase soil lifting, and there is room for improvement. Was left. The purpose of the present invention is to
The purpose is to prevent the soil cutting blade from becoming entangled with leaf debris and dust as much as possible while keeping the soil cutting action prior to the extraction.

[0004]

In order to achieve the above object, the present invention is provided with a pulling device for pulling root vegetables from the field while sandwiching the stems and leaves thereof, and to the field before the pulling operation of the pulling device. It is equipped with a landslide mechanism that collapses the soil on the side of the planted root vegetables, and this landslide mechanism is configured by arranging a soil cutting member rotatable around the vertical axis in front of the extraction device. Characterize.

[0005]

According to the structure of claim 1, since the soil cutting member is rotatable, it is possible to rotate or rotate due to the difference in resistance between the left and right due to the progress in the soil. Therefore, even if debris and dust are entangled with the soil cutting member, they will be removed by the subsequent rotational movement, and will not remain attached as in the conventional case. Therefore, the soil cutting width will not be enlarged, and the increase of soil lifting due to the extraction of root vegetables will be suppressed.

[0006]

As a result, tangling of leaf debris and dust is eliminated by a relatively simple modification such that the soil cutting member arranged in front of the extraction device is rotatably supported, and work resistance and mud adhesion are eliminated. The excavation part which can perform the extraction operation favorably without increasing inconvenience was obtained.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings in the case of a carrot digging and harvesting machine which is an example of root vegetables. As shown in FIGS. 1 and 2, the carrot harvester is configured by disposing the harvesting section B and the collecting section 9 on the traveling machine body 7 via the first support frame 20. This ginseng harvester holds a pair of left and right drive belts that can be driven and rotated in order to pinch the stems and leaves of carrots planted in the field and pull them diagonally upward at the rear of the machine to dig and suspend them. A harvesting transfer device (corresponding to a pulling device) 1 made of V or the like is provided on the left side of a machine body 7 having a crawler type traveling device 2. In front of the starting end of the sandwiching and conveying belt V, a pair of right and left rear slopes 3a are provided which enter between the ground and the foliage of carrot and can raise the foliage of root vegetables as the aircraft progresses. A weeding tool 3 and a landslide mechanism C that cuts and smashes the soil on both lateral sides of the carrot while rushing into the soil as the aircraft progresses are provided.

The weeding tool 3 is attached to the front end of the first supporting frame 20 via the second supporting frame 21, and a scooping bar for scooping off foreign matters such as weeds from the front end of the weeding tool 3. 22 extends along the rearward rising slope 3a. As shown in FIG. 3, the landslide mechanism C is composed of a rotary blade-shaped soila 4 that is formed long to penetrate deeply into the soil near the lower end of the carrot, and has a vertical rotation axis Z. It is rotatably supported by the second support frame 21.
The direction of the soila 4 is set such that the blade inclined surface 4a faces the front inside the front portion and the blade vertical surface 4b faces the front outside the front portion.
Also, due to the crushing resistance associated with the forward movement of the fuselage, the left and right inner sides of the fuselage naturally rotate outward (the left soila 4 rotates in the arrow a and the right soila 4 rotates in the arrow b).

[0009] That is, even if debris, dust and the like are entangled in the soila 4, it will be naturally removed by its self-rotation and will not remain attached, and by its outward rotation, It is expected that the broken soil will be carried more to the outside, and that it will not reach the space between the right and left soilas 4 and 4 so much.

The raising device 1 is provided on the left and right of the front end of the harvesting section B.
6 is equipped with the raising device 1 on the uncut side
A cutter blade 19 capable of cutting the leaf stem portion is attached to the root portion of the locking claw 18 of No. 6 so that extra leaf stems, weeds and the like can be cut when entangled. Further, as shown in FIG. 9, on the rear side of each belt pulley 27, a resin brush 23 that prevents mud from accumulating in the pulley groove is provided.
Is provided.

As shown in FIG. 3, in the harvesting transfer device 1, the guide roller 1b is supported by the holder 1e slidably attached to the frame 1c while being urged by the spring 1d. By making the guide rollers 1b face each other, the left and right holding and conveying belts V are pressed and urged in the approaching direction. The pressing biasing force is configured to pinch the foliage portion so that the carrot is pulled out from the ground and is strong on the transport start side and weak on the transport end side.

As shown in FIG. 2, a leaf cutting device 8 for cutting the foliage of carrot from the harvesting conveying device 1 is provided behind the harvesting conveying device 1, and the leaf cutting device 8 is aligned and conveyed. Mechanism 8a, cutting transport mechanism 8b, and swinging transport mechanism 8
It is composed of c and rotary cutters 8d and 8d. The alignment transport mechanism 8a is a drivable mechanism that acts on the upper end of a carrot suspended by the harvest transport device 1, and the cutting transport mechanism 8b holds the foliage portion from the alignment transport mechanism 8a at its holding position. It is composed of a pair of left and right drivable nipping and conveying belts and the like which are received in a state of nipping at a higher fixed position. The swinging transport mechanism 8c is composed of a pair of left and right drivable sandwich transport belts that act on carrots suspended by the cutting transport mechanism 8b.
8d is configured to be rotatable so as to cut the foliage portion of the carrot whose posture is kept constant by the steady rest transport mechanism 8c in a state where the cut ends are aligned at the root.

As shown in FIG. 4, a swinging transport mechanism 8c.
A thick cushion body 8ca is attached to the surface side of the sandwiching and conveying belt in order to cope with a large change in the thickness of root vegetables. Further, in order to surely cut, the left and right rotary cutters 8d, 8d are arranged in a wrap in a state of being driven and rotated in mutually opposite directions.

As shown in FIGS. 2 and 3, the aligning and conveying mechanism 8a includes a holder 8ab attached to a left and right rotating chain 8aa wound around front and rear sprockets 8s and 8u, and the holder 8ab. On the other hand, a support bracket 8ae that is movable in and out, a winding spring 8ad that biases the support bracket 8ae to project, and a support bracket 8ae.
The roller 8ac is rotatably supported by the support shaft X. Therefore, the rotation of the roller 8ac about the support axis X allows the foliage portion to move up in the longitudinal direction, and the top of the carrot body comes into contact with the roller 8ac as the harvesting transport device 1 pulls it up. It is configured to rise until it hits.

As shown in FIGS. 5 and 6, four short and small rollers 8ac are supported by one support bracket 8ae, and a scraper acts on the outer periphery of the roller 8ac by the operation of the alignment transport mechanism 8a. Soil removal member 5
Is provided at the starting end side position of the return path portion of the rotating chain 8aa. The soil removal member 5 is made of an elastic material such as hard rubber or urethane, and is bolted to a support member 14 fixed to a support frame 13 of the leaf cutting device 8. The upper portion of the earth removing member 5 is formed in a circular arc shape along the outer diameter of the roller 8ac so that the scraper action is applied to the outer side. That is, the soil drop member 5 is attached to both the roller outer peripheral portion Rs located at the foliage of the ginseng and the roller outer peripheral portion Rh located at the top of the carrot main body, which is guided and guided by the alignment transport mechanism 8 for the rotating chain 8aa. The shape of the soil removal member 5 is set so that the scraper action is applied to the.

As shown in FIGS. 1 and 2, a collecting section 9 for collecting root vegetables from the leaf cutting device 8 is provided behind the harvesting conveying device 1 and below the leaf cutting conveying device 8. Collection part 9
Is a sorting conveyor 9c for feeding carrots having a diameter smaller than a predetermined value to a lower container 9a and supplying a carrot having a diameter larger than a predetermined value to a rear container 9b, and a leaf cutting device 8
Chute 9 that guides carrots falling from the sorting conveyor 9c
It is configured by providing d. Further, on the left side of the recovery unit 9, there is provided a container stand 15 that can be stored in an upright posture along the lateral edge of the machine by folding and swinging about the front-rear axis Y, and an empty container 9b is placed on the container stand 15. It is installed. The empty container 9b and the rear container 9b are the same, and when carrots are fully loaded, the fully loaded container 9b is transferred to a container accommodating portion 12 described later,
The empty container 9b of the container stand 15 is supplied.

A foliage transporting device 10 comprising a transportable transporting chain 10a for discharging the cut foliage portion from the leaf cutting device 8 to the outside of the machine body, a sandwiching rail 10b, etc., and a transporting device 1 for harvesting from the leaf cutting device 8. Is arranged in a state where the cutting foliage is conveyed diagonally across the front of the machine on the other side of the machine on the opposite side, and at the side of the machine on the right side of the recovery unit 9, the boarding operation unit 6 and the drive unit are installed. A part 11 is provided, and a container accommodating part 12 is provided between the recovery part 9 and the boarding operation part 6 at the rear of the foliage conveying device 10.

The harvesting section B and the sorting conveyor 9c in the collecting section 9 are constructed so that they can be swung up and down integrally with the frame around a fulcrum P on the frame 20 by an elevating cylinder 17. Although the rear end of the sorting conveyor 9c and the container 9b move slightly forward and backward, the relative position between the harvesting section B and the sorting conveyor 9c does not change, so that a good harvesting operation can be performed as a whole.

As shown in FIGS. 2, 4 and 5, a pair of left and right foliage guides 24, 2 for sliding up the misfoliated foliage from below the harvesting conveyor 1 to above the leaf cutter 8.
4 is provided. The foliage guide 24 is composed of a rubber plate, and is biased inward by a spring 25 so as to lightly press the carrot body. In other words, when the growth conditions are not good, the foliage often hangs down, all the foliage cannot be pinched by the pair of pinching and conveying belts V, and the foliage that was not properly grasped may be hung down and transferred. Therefore, the foliage guide 2
The foliage that has not been grasped by 4 and 24 is rubbed up so that all the foliage can be pinched in the alignment transport mechanism 8a.
This is to prevent inconvenience such as unleaved foliage.

[Other Embodiments] The soirer 4 may be driven and rotated, or the soil cutting member may be composed of the soyler 4 having a gear shape in plan view. It is convenient if the earth cutting member 4 is configured so that the axis Z of the soirer 4 is inclined toward the rear toward the lower side, and the entangled objects can also escape and move downward, making it more difficult for leaf debris and the like to attach. .

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Plan view of a carrot digging and harvesting machine

[Figure 2] Side view of the carrot digging harvester

FIG. 3 is a perspective view showing a structure of a landslide mechanism.

FIG. 4 is a plan view showing the structure of a foliage guide.

5 is a view taken along the line AA of FIG.

FIG. 6 is a cross-sectional view showing a conveyance state of a rotary cutter portion.

FIG. 7 is a partial view of an alignment transport mechanism showing the structure of a soil removal member.

FIG. 8 is a side view showing the shape of the soil removal member.

FIG. 9 is a diagram showing a brush arrangement structure at the front end of the nip conveyance belt.

[Explanation of symbols]

 1 Extraction device 4 Soil cutting member C Earth collapse mechanism

Claims (1)

[Claims] 1. A pulling device (1) for pulling a root vegetable from a field while sandwiching its stems and leaves, and a soil on the side of the root vegetable planted in the field prior to the pulling operation of this pulling device (1). A landslide mechanism (C) for crushing is provided, and the landslide mechanism (C) is configured by disposing a soil slicing member (4) rotatable around an axis in the vertical direction in front of the extraction device (1). The structure of the digging part of the root vegetable harvester.