JPH06292427A - Digging harvester - Google Patents

Abstract

PURPOSE:To store a dug and screened crop after removing the soil. CONSTITUTION:The digging harvester 1 is provided with a digging part 3, a lifting conveyor 5 to lift and transfer the crop A dug up with the digging part 3 while sieving the crop and a screening part 6 to screen the acceptable crop among the crops A delivered by the conveyor 5 while supplying the crop to a storage part 26. The screening part 6 is provided with a spiral brush roll 21 contacting with the crop A to transfer the crop toward the storage part 26 while removing the soil, etc., attached to the surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mining harvester for digging and harvesting potatoes such as konjac potato, taro and potato, and underground crops of bulbs such as tulips and lilies.

[0002]

2. Description of the Related Art Since the target of a mining harvester is underground, the work is easily affected by the properties of the soil, the shape and distribution of the roots, etc. Many. Conventionally, this type of harvester has a separation type and a separation adjustment type (refer to pages 866-867 of the new edition agricultural machinery handbook).

[0003]

[Problems to be Solved by the Invention] Separated form is root (crops)
There are only two types of crops: parent potatoes (seed potatoes, large balls, etc., which are standard products) and offspring potatoes (called live eggs, small balls, etc.). Since it was thrown away, manual selection and storage after excavation was very troublesome.

In this respect, the separation adjustment type is capable of consistently performing the work of so-called box packing in the accommodating section by excavating and separating and then manually selecting or vibration selecting.
It is more efficient than the separate form. However, the work conditions differ between dry and wetlands and before and after rain, and when the soil becomes too viscous, transportation and sorting are very troublesome and the sorting accuracy is poor.

When the surface of the crop has irregularities and soil adheres to the crop, the soil must be stored as it is, which causes deterioration of the quality and deterioration of the crop due to the dirt. This is a factor, and in particular, the soil adhered to the depression is difficult to separate by vibration alone, so the above-mentioned problem was fatal.
Therefore, an object of the present invention is to enable mechanization from excavation to selection in a consistent manner and to enable harvesting in a state in which soil and the like adhering to the crop surface are reliably separated and separated.

[0006]

DISCLOSURE OF THE INVENTION The present invention is a dug portion 3
A lifting conveyor 5 that lifts and conveys the crop A dug up in the dug portion 3 while sieving, and a sorting section 6 that sorts the standard products among the crop A sent from the conveyor 5 while sending them to the accommodating portion 26. In the mining and harvesting machine 1 equipped with and, the following technical measures are taken to achieve the above-mentioned object.

That is, the present invention is characterized in that the sorting section 6 is provided with the spiral brush roll 21 which comes into contact with the crop A and removes the soil and the like adhering to the surface thereof to the accommodating section 26. It is what

[0008]

[Operation] The excavation part 3 provided at the tip of the self-propelled harvester 1.
Is pierced into the ridges of the rice field and traveled, underground crops are excavated by the excavation section 3 and are lifted by the lifting conveyor 5 while being subjected to a soil sieving action. At this time, it is desirable that the dug portion 3 impart a squeeze motion in the front-back direction,
As a result, the soil is crushed and the crop is separated from the soil well.

Further, the traveling device 7 using the crawler can ensure straightness by traveling on the bottom of the groove and can stabilize the excavation depth. The crop A sent from the lifting conveyor 5 is a parent potato (a large ball or the like, which is a standard product) A.
1 and child potatoes (small balls, some of which are out of standard) are dropped on the sorting section 6 under the presence of cobblestones, and the standard products are accommodated in containers etc. while undergoing the sorting action by vibration (swing). Sent to section 26.

During this sorting and feeding action, the brush of the spiral (helix) brush roll 21 comes into contact with the surface of the crop A, and the soil attached to the dents is also peeled off and fed.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a first embodiment of the present invention, and in FIGS. 1 and 2 showing the overall configuration, the harvester 1 has a dug portion 3 at a front portion (tip) of a traveling body 2. , First for relay
The lifting conveyor 4 and the second lifting conveyor 5 for soil sieving are provided in series in that order, the sorting section 6 is provided at the lower rear portion of the second lifting conveyor 5, and the crawler type traveling device 7 is capable of self-propelling. A driving steering device 8 is provided on one side of the machine body 2 in the middle of the front-rear direction.

The excavation part 3 is provided with a plate-shaped or comb-shaped excavation blade 9 at its lower part, and can be swung back and forth by a cylinder 11 etc. around a pivot 10 as a fulcrum, and excavated by crushing soil. Hold down resistance. The first conveyor 4 for relaying comprises endless chains 14 wound around a pair of right and left sprocket wheels 12 and 13, and horizontal crosspieces are arranged at intervals in the longitudinal direction of the chains 14. Then, one wheel is driven to sift the soil to lift and convey underground crops (hereinafter referred to as crops).

The second lifting conveyor 5 is the first conveyor 4
The inclination angle is larger than the inclination angle of 15 to 20 degrees, for example, 50 to 70 degrees, and the sprocket wheels 15 and 16 have a pair of endless chains 17.
The crosspieces are wound around, and the crosspieces having the lifting claws 18 are arranged in a row at intervals in the longitudinal direction of the chain 17, and the crops are picked up from the relay conveyor 4 and lifted while sieving the soil by circulating circulation of the claws 18. It is conveyed and sent to the subsequent sorting unit 6.

The sorting unit 6 is composed of an upper-stage large-ball sorting unit 19 and a lower-stage small-ball sorting unit 20. The large-ball sorting unit 19 is formed by horizontally arranging spiral brush rolls 21 as shown in FIGS. . The roll 21 is a roll shaft 21A on which brushes 21B such as resin bristles are planted in a spiral shape. When the pair of roll shafts 21A are rotated inwardly, the direction of the spiral is the direction in which the crop A on this roll is fed. Has become.

Specifically, a sprocket wheel 22 is provided coaxially with the sprocket wheel 16 in the lifting conveyor 5, a drive shaft 24 having a bevel gear 23 is interlocked with a chain 25, and the bevel gear 23 causes the roll shafts 21A to be directed inward from each other. It is designed to rotate to
By this rotation, the tip of the brush 21B is brought into contact with the surface of the crop A, and the brush 21B fits even into the recess of the crop A to remove soil and the like, and the crop A2 having a smaller diameter than between the rolls is dropped onto the small ball sorting section 20. , Crop A on the Otama selection section 19
1, that is, the standard product is sent to the lower side (rear side).

The spiral brush rolls 21 are arranged in a row in the width of the lifting conveyor 5 and are inclined downward in the feeding direction. Below the feeding end, the first lateral feeding for feeding to the accommodating portion 26 shown in FIG. The conveyor 27 is provided on a horizontal plane. The small bead sorter 20 extends downward from the vicinity of the start end of the spiral brush roll 21 below the horizontal feed conveyor 27 and has a second horizontal feed conveyor 28 for small balls at the extended end.
Are provided on a horizontal plane.

As shown in FIG. 3, the small ball selecting section 20 has an interval of 15
A large number of spoke rods 29 of about 25 mm are arranged side by side in the left-right direction, and are vertically swingable around a fulcrum shaft 30. The swinging force is exemplified by the one in which the crank arm 32 is connected to the disk 31 driven by the engine, but it may be other than this. In addition, in the embodiment, the small ball selecting unit 20.
A chute 33 is provided in the lower part of the table, which is integrated with the chute 33 to drop the soil and other contaminants A3 by applying vibration between the traveling devices 7.

The second transverse feed conveyor 28 is an artificial sorting conveyor, and therefore, an auxiliary driver's seat 34 is provided, and an assistant at this seat 34 sorts the small ball standard product and the defective product, and the small ball standard. The products are dropped in the left and right containers 35, and the defective products are discharged to the rice fields. In addition, it is desirable that the second transverse feed conveyor 28 be capable of rotating in the forward and reverse directions.

Further, the first and second transverse feed conveyors 27, 2
All 8 may be roller conveyors or belt conveyors. Further, a peeling brush roll 36 is installed above the large bead selecting unit 19 so as to contact the surface of the crop A on the large bead selecting unit 19 to remove the soil as shown in FIGS. 3 and 4. The roll 36 is a winding chain 37.
Driven by.

Both the spiral brush roll 21 and the roll 36 may be driven by means other than those shown.
5 to 8 show a second embodiment of the present invention. In the above-mentioned sorting unit 6, the large-lens sorting unit 19 has a spoke shape, and can be vertically swung together with the large-lens sorting unit 20, 1 Horizontal feed conveyor 27 with spiral brush roll 21
The third embodiment is the same as the first embodiment except that the assistant driver's seat 34 is of a folding type or a detachable insertion type, and the common portions are denoted by common symbols.

The first traverse conveyor 27 includes the spiral brush roll 21 (the construction of which is the same as that of the first embodiment).
The large balls A1 are sent to the housing portion 26 to sort and separate the soil. In the figure, two sets of spiral brush rolls 21 that rotate inwardly are arranged side by side on a conveyor frame and driven by a bevel gear 23. It is like this.

The large-ball selecting section 19 is composed of a large number of spoke rods 38 arranged in a comb shape at intervals of 40 to 60 mm. The large balls A1 selected by the spoke rods 38 are further transferred to the first transverse feed conveyor 27. The spiral brush roll 21 is used to separate the soil while it is being separated, and then it is dropped onto the small bead selecting unit 20.
FIG. 9 shows a skew receiving plate 39 provided at the delivery portion between the first lifting conveyor 4 and the second lifting conveyor 5 in the above-described first and second embodiments to ensure the delivery. It is desirable that the receiving plate 39 be of an angle adjusting type centering on the fulcrum 39A or a front and rear position adjusting type.

It should be noted that the receiving plate 39 may be a flat plate, but is advantageous in that it has a good soil sifting and can be dropped onto the ground without passing the grass to the second lifting conveyor 5 by forming a skewer. Becomes

[0024]

As described in detail above, according to the present invention,
It is possible to consistently mechanize from excavation to sorting, separation, and storage, and in particular, since the spiral brush roll is used,
Even soil adhering to the depressions of crops can be reliably peeled and harvested, and quality deterioration can be prevented.

[Brief description of drawings]

FIG. 1 is an overall side view showing a first embodiment.

FIG. 2 is an overall plan view showing a first embodiment.

FIG. 3 is an elevational view of an essential part showing the first embodiment.

FIG. 4 is a plan view of an essential part showing the first embodiment.

FIG. 5 is an overall side view showing a second embodiment.

FIG. 6 is an overall plan view showing a second embodiment.

FIG. 7 is an elevational view of an essential part showing a second embodiment.

FIG. 8 is a plan view of an essential part showing a second embodiment.

FIG. 9 is a side view showing a delivery section of the first and second lifting conveyors.

[Explanation of symbols]

 1 Harvester 3 Digging section 5 Lifting conveyor 6 Sorting section 21 Spiral brush roll 26 Storage section

Claims (1)

[Claims] 1. A dug up section (3), a lifting conveyor (5) for lifting up and transporting the crop (A) dug up by the dug up section (3) while sieving, and sending out from the conveyor (5). In the mining harvester (1), which comprises a sorting unit (6) that sorts the standard products among the harvested crops (A) while sending them to the storage unit (26), the sorting unit (6) A mining harvester provided with a spiral brush roll (21) which comes into contact with (A) and peels off soil and the like adhering to the surface thereof and feeds it into a storage section (26).