JPH0347461Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to an onion conveying device, and relates to an onion conveying device for conveying onions dug up by an onion harvester with their stems and leaves facing downward.

(Prior Art) Conventionally, this type of onion conveying device, as described in Japanese Patent Publication No. 52-46851, consists of rotating a pair of conveying rollers inwardly at an appropriate interval. A structure is known in which the conveyor rollers are freely horizontally mounted in parallel and an elastic string-like body is spirally wound around the outer periphery of the pair of conveyance rollers in the axial direction.

Then, by the rotation of the pair of conveyance rollers, the onion is conveyed by the spiral elastic string body of the pair of conveyance rollers, and the stems and leaves of the onion are introduced between the pair of conveyance rollers with the stems and leaves facing downward. In this state, the onions are carried out to the carrying-out end.

(Problem to be solved by the invention) According to the structure in which the elastic string-like body is spirally wound around the axial outer circumference of the conveyance roller as described above, the onion conveyance resistance is attached to this elastic cord-like body. Since it is given,
If this elastic string-like body is simply wound around the conveyance roller by adhering it, for example, with an adhesive, the elastic cord-like body may peel off from the conveyance roller.

In addition, the elastic string-like body is often damaged by stones, etc., and in such cases, the entire conveyance roller must be replaced, which is time-consuming and
The cost is high and it is uneconomical.

Therefore, the present invention was devised in view of these points, and the conveyance protrusion is integrally attached to the conveyance roller in a removable and replaceable manner, and the conveyance protrusion can be partially repaired when repair is necessary. The purpose of this invention is to provide an economical onion conveying device.

[Structure of the idea]

(Means for Solving the Problems) The onion conveying device of the present invention has a pair of conveying rollers which are rotatably rotated inwardly while leaving an interval between them for introducing onion stems and leaves. A series of engagement grooves are spirally formed on the outer periphery of the pair of conveyance rollers in the length direction, and a plurality of split elastic protrusions are provided in the engagement grooves of the pair of conveyance rollers. A series of conveyance protrusions are provided in a spiral manner on the outer periphery of the pair of conveyance rollers in the length direction using the plurality of divided elastic protrusions.

(Function) According to the onion conveying device of the present invention, when the pair of conveyance rollers are rotated inwardly, and the onion is carried onto the pair of conveyance rollers, the onion is transferred between the pair of conveyance rollers. As the onion is being moved, its posture is adjusted as it is transported in the transport direction by a series of transport ridges, and its stems and leaves are introduced between a pair of transport rollers, suspended downward, and transported to the transport end. be done.

(Embodiment) Hereinafter, the structure of an embodiment of the present invention will be described based on the accompanying drawings.

In the figure, 1 is a machine frame of an onion harvesting machine, and from the front part to the rear part of this machine frame 1, a rotatable running wheel 2, a first conveyor 4 having a digging body 3 at the front end, and a first conveyor 4 having a digging body 3 at the front end, A second conveyor 5 that slopes upward after the inlet portion faces the unloading end of the first conveyor 4.
A rotatable endless track belt 8 driven by an onion conveying device 6 and an engine 7 is provided.

The onion conveying device 6 is provided with a pair of side frames 9 facing each other on the left and right sides of the machine frame 1 on the rear side of the machine frame 1, and between the pair of side frames 9, onions are A pair of conveyance rollers 11, 11 arranged in parallel with a predetermined interval 10 for introducing the stems and leaves b of a.
A plurality of sets of conveying rollers 12 are rotatably mounted on shafts in parallel. In addition, the pair of conveyor rollers 11, 11 in each set are used to handle the onion a, respectively.
The plurality of sets of transport rollers 12, which are pivoted inwardly so as to introduce the stems and leaves b between the pair of transport rollers 11, 11, are connected to the engine 7. are interlocked and connected via a linking medium (not shown).

A pair of conveyance rollers 11, 11 in each set
A series of engagement grooves 13, 13 as engagement grooves are spirally formed on the outer periphery in the length direction, and the pitch between the spirals of the engagement grooves 13, 13 is larger than the spherical diameter of the onion a. It is formed by a large pitch. Also, the engagement grooves 13, 13 of this pair of conveyance rollers 11, 11
Inside, conveyance protrusions 14, 14, which protrude in a series in a spiral manner from the outer peripheries in the length direction of the conveyance rollers 11, 11, are removably fitted and locked. This conveyance protrusion 1
Each of 4 and 14 is composed of a plurality of divided elastic protrusions 15 that are divided into sections each having a predetermined length. is formed into a substantially trapezoidal cross section by outwardly inclined inclined side surfaces 17 formed on both sides of the holder, and a locking portion fitted into the engaging grooves 13, 13 at the lower part in the length direction thereof. A locking protrusion 18 is formed. In addition, an inverted conical mounting recess 19 is formed in the top portion 16 at both longitudinal ends of each split elastic protrusion 15, and a locking protrusion 18 is formed in the lower part of the mounting recess 19. An insertion hole 20 communicating with this is formed, and the insertion hole 20 at both ends is connected to the engagement groove 13, 13.
It is designed to communicate with a screw hole 21 formed at the bottom of the. Each split elastic protrusion 15 has its locking protrusion 18 connected to the engagement groove 13,
13, and insert the insertion holes 20 from the mounting recesses 19 at both ends thereof to form the engagement grooves 13, 1.
The upper surface of the inverted conical head 23 of the screw 22 is flush with the top 16.

However, the pair of conveyance rollers 11, 11 are
It is formed into a hollow cylindrical shape from synthetic resin, and a rotating shaft 25 is inserted into the hollow portion 24 and integrally connected to each other at both ends of each conveying roller 11, 11. Both ends of the engine 7 are rotatably mounted on a shaft, and one end of the engine 7 is interlocked with the engine 7 via an interlocking medium.

Next, a pair of conveyance rollers 1 in each set
A cutter 26 for cutting the stems and leaves b of onion a is rotatably provided between the delivery ends of nos. They are linked together for free movement.

In addition, at the bottom of each cutter 26, there are stems and leaves b of onion a that have been cut and removed by each cutter 26.
A container 28 is provided for storing the onion a, and a container 30 and a chute 29 for guiding the onion a whose stems and leaves b have been cut by the cutters 26 are provided at the rear of the discharge end of the conveyance roller group 12. . Also, on the way of the conveyance roller group 12, there is an onion a.
A rubber plate 31 for adjusting the rolling movement of the rubber plate 31 is vertically installed in the width direction, and this rubber plate 31 is swingable in the front and rear directions.

Next, the operation of the above structure will be explained.

The engine 7 is driven to advance the machine, and the power from the engine 7 rotates the first conveyor 4 and the second conveyor 5 clockwise in FIG. The roller group 12 and each cutter 26 are interlocked and rotated in a predetermined rotation direction via an interlocking medium.

Then, the onion a in the field is dug up by the digging body 3, and the onion a is conveyed by the first and second conveyors 4 and 5 while shaking off the soil, and then transferred to the second conveyor 5. The onion is carried into the carrying-in part of the conveying roller group 12 of the onion conveying device 6 from the carrying-out end.
In addition, each onion a conveyed to this conveyance roller group 12
are distributed to each pair of conveyance rollers 11, 11, and are distributed to each pair of conveyance rollers 1 in each set.
The onions a on 1 and 11 are attached to the respective conveying protrusions 1
4 and 14 between the pair of conveyance rollers 11 and 11 and conveyed in the conveyance direction, and the stems and leaves b are introduced into the gap 10 between the pair of conveyance rollers 11 and 11 and are suspended downward. , and the posture is controlled so that this onion root c is located at the top. Then, when this onion a is conveyed to the discharge end of the pair of conveyance rollers 11, 11, the stems and leaves b of each onion a suspended below between the pair of conveyance rollers 11, 11 in each set are The removed stems and leaves b cut by the cutter 26
is stored in the container 28, and the onion a is discharged into the container 30 via the chute 29.

In the above case, each divided elastic protrusion 15 of the conveyance protrusions 14, 14 fixed to the pair of conveyance rollers 11, 11 in a spiral manner engages the locking protrusions 18, 18 with the conveyance rollers 11, 11. These divided elastic protrusions 15 are fitted into the concave grooves 13, 13, and are removably fixed with screws 22.
The series of conveying protrusions 14, 14 do not separate even if a conveying resistance pushed in the lateral direction by the onion a is applied during the conveyance of the onion a. The conveyance protrusions 14, 14 that have received conveyance resistance are caused by the locking protrusions 18, 18 and the engagement grooves 13 into which the locking protrusions 18, 18 are fitted.
13, the conveying protrusions 14, 14 do not separate from the conveying rollers 11, 11 even when subjected to the conveying resistance of the onion a. Moreover, since each divided elastic protrusion 15 of the conveyance protrusions 14, 14 is formed in a trapezoidal shape, the locking protrusions 18, 18 are connected to the respective engagement grooves 13,
13, this locking protrusion 1
8, 18, both side overhanging parts 32,
32 is in close contact with the opening edges of the engagement grooves 13, 13 and fully supports each divided elastic protrusion 15, so that even if the conveying protrusions 14, 1 are subjected to the conveyance resistance of the onion a,
4 can be held even more reliably.

In addition, if the conveying ridges 14, 14 of the pair of conveying rollers 11, 11 are partially broken or damaged, the split elastic ridges 15 of the broken/damaged portions
By removing the screws 22 that fixed the broken or damaged split elastic protrusions 15, and fixing the new split elastic protrusions 15 with the screws 22 again in its place, it is possible to easily remove the broken or damaged split elastic protrusions 15. Article 14, 14
can be repaired.

[Effect of idea]

According to the present invention, by attaching the locking portions of the plurality of split elastic protrusions to the helical engagement groove of the conveyance roller, a series of conveyance protrusions are spirally formed on the outer circumference in the length direction of the conveyance roller. The conveying protrusion can be easily and reliably provided in a protruding shape, thereby reliably preventing the conveying protrusion from separating due to the conveying resistance of the onion, and conveying the onion smoothly and lightly in a desired posture. I can do it.
Furthermore, the onions can be transported without being damaged due to the elastic action of the plurality of divided elastic ridges forming the series of conveyance ridges. In addition, the plurality of split elastic protrusions that made up the series of conveyance protrusions are detachably attached, so when the conveyance protrusions need to be repaired, the corresponding parts of the conveyance protrusions can be partially attached and replaced. It can be easily repaired and is more economical than replacing the entire conveying protrusion and conveying roller.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a partially cutaway front view of the conveying roller of the onion conveying device, Fig. 2 is an enlarged sectional view of a part of the same conveying roller, and Fig. 3 FIG. 4 is a cross-sectional view of the same onion conveying state, and FIG. 4 is a side view of the harvester equipped with the onion conveying device. 10... Interval, 11... Conveyance roller, 13...
Engagement groove, 14... Conveyance protrusion, 15... Divided elastic protrusion, 18... Locking portion, 22... Screw.

Claims (1)

[Scope of utility model registration request] A pair of conveyance rollers are rotatably mounted side by side with a space between them to introduce the onion stems and leaves and rotated inwardly. A series of engagement grooves are formed in a spiral shape, and the locking portions of a plurality of split elastic protrusions are removably engaged with the engagement grooves of the pair of conveyor rollers, and the plurality of split elastic protrusions are used to 1. An onion conveying device characterized in that a series of conveying ridges are spirally provided on the outer periphery in the length direction of the conveying roller.