JPH031925B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a foliage sorting device for a harvester that harvests potatoes such as potatoes and beets.

[Conventional technology]

Conventional well-known potato harvester
In many cases, an outer rod conveyor and an inner rod conveyor are installed in two stages, upper and lower, behind the digging blade, and the outer conveyor's rod spacing is coarse, and the inner conveyor's rod spacing is fine. We try to keep it well separated from the soil, but
There was a problem that the mechanism became complicated.

To solve the above problem, behind the digging blade,
An endless conveyor is provided with rod spacing that is large enough to place potatoes, stems, leaves, etc. that have been dug up by a digging blade, and to allow the mud adhering to the potatoes, etc. to fall off. For example, Japanese Utility Model Publication No. 55-9076 discloses a mechanism that improves the performance of sorting out stems, leaves, etc. and simplifies the mechanism by providing a sorting roller that rotates in a direction opposite to the roller. In this prior art, the foliage, etc. that have been sorted by the conveyor and sorting roller are sent to the next conveyor without being reliably discharged from the machine, and the next conveyor must separate the potatoes from the foliage, etc. There was a problem.

[Problem that the invention seeks to solve]

The present invention has been developed in view of the above circumstances, and improves sorting performance by reliably releasing stems, leaves, weeds, etc. sorted at the end of the conveyor into the field without discharging them onto the next conveyor. It is an object of the present invention to provide a stem and leaf sorting device for a potato harvester that is simplified in structure and light in weight.

[Means for solving problems]

In order to achieve this object, the present invention places the potatoes, stems, leaves, etc. that have been dug up by the digging blade behind the digging blade, and maintains a distance between the rods that is sufficient to allow the mud adhering to the potatoes, etc. to fall. An endless conveyor is provided, and a separation roller is provided below the conveyance end rotating section of the conveyor and rotates in a direction opposite to the rotational direction of the conveyance end rotating section. Immediately after the separation roller, the conveyor A lubricating plate is disposed along the lower surface of the conveyor.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In the figure, reference numeral 1 is a digging blade of a potato harvester, and behind this digging blade 1, a first vertical feeding rod conveyor 2 is provided. This first rod conveyor 2 has a digging blade 1
The side of the rod is low, and the rod is inclined to gradually become higher toward the rear, and the conveyance start end side can move up and down with the digging blade 1 around the conveyance terminal end 2a side. The potatoes, stems and leaves (including weeds) that are placed on the conveyor and transported do not fall, but only the mud adhering to the potatoes, etc. falls.

A weeding roller 3 that rotates in the opposite direction is provided below the conveyance end portion 2a, which is the rotating portion of the first rod conveyor 2, and a second vertical feeding rod conveyor 4 is provided below this weeding roller. , rotates in the same direction as the first rod conveyor 2, and is arranged with substantially the same rod spacing and inclination angle as the first rod conveyor 2.

Further, the conveyance end portion 4 of the second rod conveyor 4
A separation roller 5 that rotates in a direction opposite to the rotational direction of the conveyance end portion 4a (both indicated by arrows) is supported on the lower side of a (rotating portion), and is forcibly driven via a transmission system (not shown). It is becoming more and more common. Immediately after this separation roller 5 is a second rod conveyor 4.
A lubricating synthetic resin plate 6 is disposed along the lower surface of the conveyor on the return stroke, with its front end pivotally supported and its rear end locked with a stopper. It extends to the outside of the side end portion in the width direction.

A transverse conveyor 7 is provided below the conveyance end portion 4a of the second rod conveyor 4 and the separation roller 5.
is provided substantially horizontally in a direction orthogonal to the second rod conveyor 4, and the conveyance end portion 4a and separation roller 5 extend to approximately the middle position in the width direction of the traverse rod conveyor 7. A direction change/selection roller 8 is disposed above the conveyance end side of the traverse rod conveyor 7.

It should be noted that an elevating device (not shown) is provided at a position where the potatoes are discharged from the cross-feeding rod conveyor 7 by the deflection/sorting roller, so that the potatoes are transported to the storage side.

In such a configuration, the grass, stems, leaves (including weeds), etc. that are dug up by the digging blade 1 are placed on the first vertical rod conveyor 2 and conveyed.
The mud adhering to the potatoes, etc. is removed, and the leaves, weeds, etc. are removed by being rolled up between the conveyance end 2a and the weeding roller 3, and the potatoes, remaining leaves, etc. are removed by the second vertical rod conveyor 4. send out. This second conveyor 4 also conveys the soil while falling, and among the potatoes, leaves, etc. sent out from the conveyance end, the stems and leaves are sandwiched between the conveyance end 4a and the sorting roll 5. The material is sent along the lower surface of the conveyor 4 (return stroke), receives the feeding action from the rod on the return stroke of the second conveyor 4 while sliding on the synthetic resin plate 6, and is discharged from the end of the synthetic resin plate 6 into the field. be done.

The potatoes are mainly discharged from the conveyance end of the second rod conveyor 4 onto the lateral rod conveyor 7, and these potatoes are separated into stems and leaves using the width of the lateral conveyor 7 effectively. etc., and is sent upward by a lifting device.

〔Effect of the invention〕

As explained above, according to the foliage sorting device for a potato harvester of the present invention, the foliage and weeds are sorted by the sorting roller at the conveyance end of the rod conveyor that conveys the potatoes, foliage, etc. Since it is forcibly discharged by the return stroke of the conveyor and the lubricating synthetic resin plate, for example, even if the conveyance end of the conveyor is overlapped at an intermediate position in the width direction of the transverse conveyor, the leaves, etc. can be removed from the transverse conveyor. It can be discharged to the field without getting in the way. Also, stems and leaves,
Since the mechanism for sorting out weeds and the like is simplified, the working efficiency of the harvester as a whole can be improved and the weight can be reduced.

[Brief explanation of the drawing]

The drawing is a side view showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Digging blade, 2... First vertical rod conveyor, 2a... Conveyance end part (rotating part), 3... Weeding roller, 4... Second vertical feed rod conveyor, 4a... Conveyance end part (rotating part) , 5...Separation roller, 6...Synthetic resin plate, 7...Transverse feed rod conveyor, 8...Direction change/
Sorting roller.

Claims (1)

[Claims] 1. An endless conveyor is installed behind the digging blade, on which the potatoes, stems, leaves, etc. dug up by the digging blade are placed, and the rod spacing is large enough to drop the mud adhering to the potatoes, etc. A separation roller is provided below the conveyance end rotating section and rotates in a direction opposite to the rotational direction of the conveyance end rotating section. Immediately after this separation roller, a lubricating roller is installed along the conveyance bottom surface of the conveyor. A stem and leaf sorting device for a potato harvester, characterized in that a plate is provided.