JPH0837880A - Conveyor for harvested vegetable - Google Patents

Abstract

PURPOSE:To provide a conveyor for harvested vegetables, having a guide mem ber in a gap formed between ends of auger screws, capable of preventing a rhizomatic part from entering the gap and smoothing the successive conveyance, improved in operating efficiency and useful for cabbages, etc. CONSTITUTION:This conveyor for harvested vegetables is obtained by arranging two auger screws 23 and 31 for nipping a rhizomatic part 2b of each harvested vegetable 2 in a butted state of the mutual ends of the auger screws 23 and 31 in the shaft directions thereof so as to successivelyconvey the rhizomatic part 2b from one auger screw 23 to the other auger screw 31, providing the respective shaft directions of the augers in a mutual crossing state and further arranging a guide member 46 in contact with the lateral part of the rhizomatic part 2b in a gap formed between the ends of the two auger screws 23 and 31 so as to prevent the rhizomatic part 2b of the harvested vegetable 2 during the conveyance from entering the gap.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvested vegetable conveying device for cutting rooted roots after harvesting headed vegetables such as cabbage and lettuce.

[0002]

2. Description of the Related Art As a vegetable harvester for heading vegetables such as cabbage, "New Edition Agricultural Machinery Handbook, Corona Co., Ltd."
The one described in "March 30, 1984, pages 863-865" is known. With this traditional vegetable harvester,
Two counter rotating type to transport the harvested cabbage
The cabbage is prepared while being conveyed in the axial direction (substantially horizontal direction) with the rhizome portion of the cabbage sandwiched by an axial auger screw.

[0003]

By the way, it is necessary to lift the harvested vegetables to a predetermined height in order to prepare the harvested vegetables and to pack them in a box on the harvester. When both lifting and carrying and substantially horizontal carrying for preparation are carried out by an auger screw, one of the auger screws is arranged in a vertically inclined manner to lift and carry the harvested vegetables, and In order to transfer and convey the rhizome from the auger screw of (1) to the other auger screw, the end portion of the other horizontally arranged auger screw may be arranged in abutting shape with the upper end portion of the one auger screw. That is, at this time, the axial directions of these auger screws are made to intersect each other.

However, when the two auger screws are arranged in this way, no matter how close the ends of the screws are to each other, a gap is formed between the ends, and the cabbage being conveyed is conveyed in the gap. The rhizomes of the cauldrons move laterally inward and enter, hindering smooth cabbage transportation.
In some cases, the cabbage may be stagnated at the receiving part without being transferred.

Therefore, according to the present invention, when the harvested vegetables are transferred from one of the two auger screws to the other, the roots of the harvested vegetables fit into the gaps formed between the ends of the two auger screws. The purpose is to prevent crowding.

[0006]

In order to achieve the above object, the present invention takes the following technical means. That is,
The present invention is such that two auger screws, which convey the harvested vegetables in the axial direction with the rhizomes sandwiched therebetween, convey the rhizomes from one auger screw to the other auger screw and convey the auger screws to each other in the axial direction. Are arranged in a butt shape, and the axial directions of the auger screws are intersecting with each other, and the harvested vegetables are conveyed to a gap formed between the ends of the two auger screws. It is characterized in that a guide member which is in contact with a side portion of the rhizome portion is arranged so as to prevent the rhizome portion of the harvested vegetables inside from entering the gap.

The auger screw is a straight rod-shaped shaft having a spiral groove formed on the outer periphery thereof. The auger screw is rotationally driven in a direction in which the rhizome is pulled downward and the spiral groove is formed. The rhizomes sandwiched inside are conveyed in the axial direction.

[0008]

When the harvested vegetables are transferred from one auger screw to the other, the movement of the harvested roots of the harvested vegetables to the lateral direction in the direction of conveyance is caused between the ends of the two auger screws. It is blocked by the guide member arranged in the formed gap, the rhizome does not enter into the gap, the harvested vegetables are smoothly transferred, and the harvested vegetables are less likely to be stagnant at the receiving part.

[0009]

EXAMPLE A harvested vegetable carrier according to an embodiment of the present invention is
Vegetable harvesting machine 1 suitable for harvesting cabbage shown in FIGS. 4 to 8
It is installed in 0. First, the vegetable harvesting machine 10 will be described. The harvesting machine 10 has a traveling vehicle 11, and the traveling vehicle 11 has a harvesting means 12 for pulling out the cabbage (vegetables) 2 in the field and a harvesting means 12 for pulling it. Conveying means 13 for lifting the removed cabbage 2 upward, and preparation / preparation of the cabbage 2 sent by the conveying means 13.
A preparation and selection means 14 for performing selection is provided.

The traveling vehicle 11 has a vehicle body 16 having a crawler 15, and a driver's seat 17 is provided on the right side of the vehicle body 16.
Is provided. In front of or to the left of the driver's seat 17,
It has a strike control lever, a main shift lever, an auxiliary shift lever, an accelerator lever, and the like. In addition, the crawler 1
An engine 18 and a mission 19 for driving the vehicle 5 are provided. A lifting work device 2 is provided at the rear of the vehicle body 16.
0 is provided.

The harvesting means 12 is arranged in front of the left part of the vehicle body 16, and has a pair of left and right pickup disks 21 arranged at the front end and the pickup disk 21.
And a take-in screw 22 that holds the rhizome portion 2b of the cabbage 2 that has been pulled out by the above and conveys it upward and rearward.
The take-up screw 22 is composed of a pair of auger screws arranged side by side on the left and right sides, and conveys backward while sandwiching the rhizome 2b in the groove of both screws, and the axis of the take-up screw 22 is in the field. It is arranged at a predetermined angle (20 ° or less in this embodiment) with respect to the surface.

The carrying means 13 comprises a lifting screw 23 connected to the rear end of the take-in screw 22 and a belt conveyor 24 for holding the top of the cabbage 2 so that the lifting screw 23 can carry the cabbage 2 stably. Have. The lifting screw 23 is composed of a pair of auger screws arranged in parallel on the left and right, and its axis is inclined rearward and upward at an angle larger than the take-in screw 22 (60 ° or less in this embodiment). Similarly, the cabbage 2 is lifted upward and conveyed while sandwiching the rhizome 2b in the grooves of both screws.

The belt conveyor 24 is driven at substantially the same speed as the conveying speed of the lifting screw 23, and presses the top of the cabbage 2 being conveyed by the lifting screw 23 to prevent the cabbage 2 from falling and to stably convey the cabbage 2. I am trying. Below the lifting screw 23, a rotary drive type cutting blade 25 is provided.
Thus, the rhizome 2b of the cabbage 2 is cut and removed below the rhizome 2b of the cabbage 2, leaving the portion sandwiched by the lifting screw 23.

The harvesting means 12 and the conveying means 13 are
The swing frame 26 is provided on the vehicle body 16 so as to project forward. The swing frame 26 is vertically swingably connected to the vehicle body side 16 with the upper end portion as a swing fulcrum, and is vertically moved by expansion and contraction of a hydraulic cylinder 27 provided between the vehicle body 16 and the swing frame 26. It is rocked. A grounding ring 28 is provided at the lower end of the rocking frame 26, and the lowering position of the rocking frame 26 is regulated to set the vertical position of the harvesting means 12 during the harvesting work.
During the non-harvesting work, the hydraulic cylinder 27 is extended to move the swing frame 26 upward, and the harvesting means 12 and the transporting means 13 are retracted from the ground to a predetermined height.

The preparation / selection means 14 is connected to a conveyor 30 for sandwiching the bulb portion 2a of the cabbage 2 sent from the conveyor 13 from the left and right sides and conveying it backward, and a rear upper end of the lifting screw 23. Conveyor screw 31
A support conveyor 32 for pressing and supporting the top of the bulb portion 2a of the cabbage 2 from above, and a cutting blade 33 for cutting and removing the rhizome B of the cabbage 2 during the transportation of the transport conveyor 30.
And a discharge chute 34 that is arranged behind the cutting blade 33 and discharges the cut root portion 2b to the side of the vehicle body 16.
And a sorting device 35 for sorting the cut cabbage 2 of the rhizome 2b, and a storage container 36 for storing the sorted cabbage 2. In addition, this preparation and selection means 1
4 is covered with a protective cover 29 on the upper side and the lateral side.

The transfer conveyor 30 is composed of a pair of left and right belt conveyors arranged at a predetermined interval on the left and right. Each belt conveyor includes a front pulley 37 arranged above the rear portion of the lifting screw 26 and a sorting and storing means 16.
A rear pulley 38 disposed above the belt, and a ring-shaped rubber belt 39 wound around these front and rear pulleys 37, 38.
It has and. By the transport conveyor 32, the cabbage 2 sent by the transport means 13 is transported rearward, and the sandwiching of the bulb portion 2a is released above the sorting device 35 arranged at the rear portion of the vehicle body 19 to move the cabbage 2 downward. Can be dropped.

The conveying screw 31 is composed of a pair of auger screws arranged side by side on the left and right sides, and conveys the cabbage 2 rearward while sandwiching the rhizome 2b in the groove of the screw. The front end portion of the conveying screw 31 is arranged close to the upper end portion of the lifting screw 23 in a butt shape. Further, the axis of the conveying screw 31 is substantially horizontal, and the axes of the lifting screw 23 intersect (incline) with each other. The rear end portion of the conveying screw 31 is located above the discharge chute 34, and the rhizome 2b cut by the cutting blade 33 is conveyed to above the discharge chute 34 and dropped.

The support conveyor 32 is arranged in front of the cutting blade 33 in the carrying direction, and is carried by the carrying conveyor 30 and the carrying screw 31 by holding the top of the ball portion 2a of the cabbage 2 for carrying. The posture of the cabbage 2 is corrected, and the cutting position by the cutting blade 33 is made substantially constant to reduce the generation ratio of the cabbage 2 that needs to be readjusted as much as possible.

The cutting blade 33 has a disk shape and is arranged above the middle portion of the conveying screw 31 in the conveying direction, and is rotationally driven by a hydraulic motor 40 fixed to the vehicle body 16 side to convey the conveying conveyor 30. Also, the boundary between the bulb portion 2a and the rhizome 2b of the cabbage 2 conveyed by the conveying screw 31 is cut. After the cutting, the bulb portion 2a is transported backward by the transport conveyor 30, and the rhizome portion 2b is transported backward by the transport screw 31.

The discharge chute 34 is substantially plate-shaped, is fixed to the vehicle body 16 in a posture in which the right side is inclined downward, and the rhizome 2 dropped from the rear end of the conveying screw 31.
b is discharged from the right side of the vehicle body 16 to the field. The sorting device 35 includes a sorting conveyor 41 arranged below the rear end of the transport conveyor 30. This sorting conveyor 4
The belt conveyor 1 includes a belt conveyor whose front end is located above the discharge chute 34 and whose rear end is located above the storage container 36. The upper surface of the conveyor is driven backward. Further, the sorting conveyor 41 is connected to the vehicle body 16 side so that the front end can swing downward with the rear end as a swing fulcrum, and the front end is operated via a link 42 as shown in FIG. The front end of the sorting conveyor 41 is connected to the pedal 43, and the lower end of the operating pedal 43 causes the sorting conveyor 41 to swing downward. In addition, the operation pedal 43 and the sorting conveyor 41 are
A return spring 44 for returning the downwardly swung sorting conveyor 41 and the operation pedal 43 is connected.

The prepared cabbage 2 dropped from the rear end of the transfer conveyor 30 by the sorting conveyor 41 is
It is conveyed to the upper part of the storage container 36 and dropped.
When the size of the dropped prepared cabbage 2 is out of the product standard, the prepared cabbage 2 is mounted on the vehicle body 16 to prepare and sort means 1.
When the worker M who monitors the operation of 4 depresses the operation pedal 43, the sorting conveyor 41 is inclined forward and downward, the cabbage 2 on the conveyor is slid into the discharge chute 34, and the field 16 is fed from the side of the vehicle body 16. To discharge. It is preferable that the conveyor drive is stopped when the sorting conveyor 41 is swung downward.

As the selection conveyor 41, a roller conveyor or the like can be adopted instead of the belt conveyor.
When a roller conveyor is used, it is preferable that the rear side is inclined slightly downward in normal times without providing drive power so that the cabbage 2 on the conveyor 41 will naturally slide down to the container 36 side. The storage container 36 is loaded on the elevating work device 20 and is open upward, and stores a large number of prepared cabbage 2 discharged from the sorting conveyor 41.

A harvested vegetable carrier 1 according to an embodiment of the present invention.
Is composed of two auger screws, a lifting screw 23 of the conveying means 13 and a conveying screw 31 of the preparation and sorting means 14. Hereinafter, harvested vegetable carrier 1
Each embodiment will be described. In the harvested vegetable carrier 1 according to the embodiment of the present invention shown in FIGS. 1 to 3, the spiral groove 23a formed on the outer periphery of each auger screw on the left and right of the lifting screw 23 is formed up to the upper end of the screw 23. And the spiral groove 3 formed on the outer circumference of each auger screw on the left and right of the conveying screw 31.
1a is formed up to the front end of the screw 31.

The lifting screw 23 is configured such that rotational power from a hydraulic motor (not shown) fixed to the swing frame 26 is transmitted through a drive power transmission portion provided at an axially intermediate portion of the screw 23. It is driven to rotate. The pair of left and right auger screws are driven to rotate downward on opposite sides, respectively, and the cabbage 2 is pulled in while pulling in the rhizome 2b.
To the upper rear. The drive power transmission unit includes a pair of gear boxes 45 that are respectively connected to the left and right auger screws, and the inner surface of the gear box 45 serves as a guide surface for slidingly holding the rhizome 2b during transportation. ing. The pair of gear boxes 45 are displaced from each other in the axial direction of the screw 23, and the rhizome 2
When b is in sliding contact with the guide surface of one gear box 45, the auger screw on the other side lifts and conveys the rhizome 2b.

The conveying screw 31 is rotationally driven by transmitting rotational power from a hydraulic motor fixed to the vehicle body 16 side via a drive power transmitting portion provided at the rear end of the screw 31. The front end side of the screw 31 is supported by a bearing 49 provided at an intermediate portion in the axial direction, and the bearing 49 is fixed to the vehicle body 16 side. The upper end of the lifting screw 23 and the front end of the conveying screw 31 are as close as possible to each other within a range that does not hinder the rotational drive of each other. However, a gap is inevitably formed between the two screws 23 and 31. In order to reduce such a gap, in this embodiment, first, the upper end surface of the lifting screw 23 is formed in a plane shape orthogonal to the axial direction, and the front end portion of the conveying screw 31 is formed in a substantially conical mountain shape. The gaps in the shaft central portions of the screws 23 and 31 are eliminated as much as possible.

A guide member 46 for preventing the rhizome 2b of the harvested vegetables 2 being conveyed from moving laterally in the conveying direction is arranged in the gap between the upper sides of the two screws 23 and 31. The gap in is eliminated as much as possible. The guide member 46 has a substantially triangular shape in a side view, one side thereof extends along the upper end surface of the lifting screw 23, and the other side extends from the uppermost end of the lifting screw 23 in the axial direction of the screw 23. Has been done.

A pair of left and right guide members 46 are provided corresponding to the left and right auger screws of the lifting screw 23 and the conveying screw 31, and are fixed to the swing frame 26. The horizontal position of the inner surface of each guide member 46 (the guide surface of the rhizome 2b) is substantially equal to the bottom position of the concave groove 23a of the lifting screw 23, and the harvested vegetables 2 are inherited from the lifting screw 23 to the conveying screw 31. The rhizome 2b is prevented from being caught by the guide member 45 during the transportation, so that the transportation is further facilitated.

By the guide member 46, the cabbage 2 transferred from the lifting screw 23 to the carrying screw 31 is laterally moved in the carrying direction.
The root portion 2b is prevented from coming into contact with the side portion of the root portion 2b of the cabbage 2, and the root portion 2b does not enter into the gap formed between the screws 23 and 31, so that the cabbage 2 can be smoothly inherited and conveyed.

The swinging fulcrum of the swinging frame 26 and the intersection of the axes of the screws 23 and 31 are substantially at the same position in side view (see FIG. 1), and the swinging frame 26 is rotated upward. Then, the conveying screw 23 and the guide member 46
Also rotates upward as shown by the chain double-dashed line in FIG. At this time, in order to prevent the guide member 46 and the conveying screw 31 from coming into contact with each other, a slight gap is normally provided between the guide member 46 and the conveying screw 31.

The upper end positions of the right and left auger screws of the lifting screw 23 are axially displaced (see FIGS. 2 and 3), and correspondingly, the front ends of the left and right auger screws of the conveying screw 31 are correspondingly moved. The positions of the parts are also shifted in the axial direction, and the gaps formed between the auger screws are positioned back and forth in the conveying direction. When the rhizome 2b passes through one of the gaps, the lifting screw 23 on the other side. Alternatively, the conveying screw 31 is configured to positively convey the rhizome 2b. The axial positions of the left and right auger screw ends may be the same.

Near the upper end of the lifting screw 23, a substantially disk-shaped delivery wheel 47 is provided on the swing frame 26 at a position closer to the right side. This delivery foil 47
Is for assisting the transfer and transfer of the rhizome 2b from the lifting screw 23 to the transfer screw 31,
A plurality of semicircular cutout recesses 48 into which the rhizomes 2b are fitted are continuously provided around the periphery, and the lifting screw 2
It is rotationally driven in synchronization with the driving of No. 3. The driving of the delivery wheel 47 is preferably performed by a hydraulic motor that drives the lifting screw 23.

The delivery wheel 47 forcibly pushes up the rhizome 2b of the cabbage 2 to ensure the transfer of the transfer screw 31 from the lifting screw 23 to the transfer screw 31. Further, since the delivery wheel 47 is provided along the lifting screw 23, the delivery wheel 47 does not hit the ball head portion 2a of the cabbage 2 and the ball head portion 2a is not damaged.

The present invention is not limited to the above embodiment, but can be modified in design as appropriate. For example, although the harvested vegetable carrier 1 is mounted on the self-propelled vegetable harvester 10 in the above-described embodiment, the harvested vegetable carrier 1 may be installed indoors. Further, the guide member 46 may be only one of the left and right sides. In this case, it is preferable that a delivery wheel 47 is provided on the left and right sides of the guide member 46, and the delivery wheel 47 prevents the rhizome 2b from moving laterally.

9 to 11 show a harvested vegetable carrier 50 according to a first comparative example of the present invention. The same components as those of the above-mentioned embodiment of the present invention are designated by the same reference numerals and detailed description thereof will be omitted. The different configurations and effects will be described.
In this comparative example, the gear box 45 of the drive power transmission portion of the lifting screw 23 is connected to the upper end portions of the left and right auger screws, and the gear box 4
A delivery foil 47 is arranged on the right gearbox 45 in order to forcibly transport the rhizome 2b when it passes the guide surface of 5.

The guide member 46 includes a gear box 45 at the upper end of the lifting screw 23 and the conveying screw 3.
It is arranged in a gap formed between the front end of the vehicle body 1 and the front end portion of the vehicle body 1, and is fixed to the vehicle body 16 side. In this comparative example, a guide member is not provided in the gap between the auger screws on the right side of the screws 23 and 31, but the feeding wheel 47 prevents the cabbage 2 from moving to the right side in the transfer section. It

According to this comparative example, the lifting screw 2
Rhizome 2 of cabbage 2 that has been lifted and transported by 3
b is forcibly conveyed by the delivery wheel 47 to the conveying screw 3
It is possible to carry over to 1 and carry it, and to prevent the cabbage 2 from stagnating at the receiving part. Further, as in the above-described embodiment of the present invention, the delivery wheel 47 lifts the screw 23.
Therefore, it is possible to prevent the bulb portion 2a of the cabbage 2 from being damaged.

12 and 13 show a harvested vegetable transporting device 51 according to a second comparative example of the present invention. The same components as those of the first comparative example are designated by the same reference numerals and detailed description thereof will be omitted. The different configurations and effects will be described.
In this comparative example, the delivery wheel 47 is provided on the side of the vehicle body 16 and is inclined in the horizontal direction with respect to the axial center direction of the lifting screw 23.
When the screw 3 is rotated upward as shown by a chain double-dashed line in FIG. 12, the screw 3 is substantially along the screw 23.

Also in this comparative example, the transfer wheel 47 forcibly carries out the transfer of the cabbage 2 from the lifting screw 23 to the transfer screw 31.

[0039]

As described above, in the harvested vegetable transporting apparatus of the present invention, the root portion of the harvested vegetable being transported is prevented from entering the gap formed between the ends of the two auger screws. Since a guide member that comes into contact with the side of the rhizome is arranged to prevent it, it is possible to prevent the rhizome of the harvested vegetables from entering the gap between the ends of the two auger screws, and to transfer and transport the harvested vegetables. In addition to smoothing, it is possible to reduce the stagnation of harvested vegetables at the inheritance portion.

[Brief description of drawings]

FIG. 1 is a left side view of a harvested vegetable carrier according to an embodiment of the present invention.

FIG. 2 is a plan view of the harvested vegetable carrier device.

FIG. 3 is a view on arrow A in FIG.

FIG. 4 is a left side view of a vegetable harvester equipped with the harvested vegetable carrier.

FIG. 5 is a plan view of the vegetable harvester.

FIG. 6 is a front view of the vegetable harvester.

FIG. 7 is an enlarged plan view showing a preparation and selection means of the vegetable harvester.

FIG. 8 is a left side view of the same preparation / sorting means.

FIG. 9 is a left side view of the harvested vegetable carrier according to the first comparative example.

FIG. 10 is a plan view of the harvested vegetable carrier device.

FIG. 11 is a view on arrow B of FIG. 9.

FIG. 12 is a left side view of a harvested vegetable carrier according to a second comparative example.

FIG. 13 is a plan view of the harvested vegetable carrier device.

[Explanation of symbols]

 1 Harvested Vegetable Conveying Device 23 Auger Screw (Lifting Screw) 31 Auger Screw (Conveying Screw) 46 Guide Member 2 Harvested Vegetable 2b Rhizome of Harvested Vegetable

Claims (1)

[Claims] 1. Two auger screws (23, 3) that convey the harvested vegetables (2) in the axial direction with the rhizome (2b) interposed therebetween.
1) The auger screws (23, 31) are arranged so that their axial end portions are in abutting relationship with each other so as to transfer the one auger screw (23) to the other auger screw (31) and the rhizome (2b). In addition to the above, the harvested vegetable conveying device is configured such that the axial directions of the auger screws (23, 31) intersect each other, and is formed between the end portions of the two auger screws (23, 31). In the gap, a guide member (46) is arranged to abut the side of the root (2b) to prevent the root (2b) of the harvested vegetables (2) being conveyed from entering the gap. A harvested vegetable carrier device characterized in that