JPH02222610A - Harvester for root vegetables - Google Patents

Abstract

PURPOSE:To continuously harvest root vegetables in many rows by digging up the root vegetables in one lateral part in the forward direction and conveying the root vegetables to the other lateral part in the forward direction. CONSTITUTION:A body frame 1 is connected to a three-point link mechanism, etc., of a tractor and digging up units 21 are faced to ridges in rows of the root vegetables. The root vegetables in the ridge are successively dug up with the advance of the harvester, successively carried a carrying in part 48 of a carrying conveyor 31 and successively taken from a taking out part 49 to the side opposite to the digging up units 21. Thereby, the advancing space of the harvester can ensured and the root vegetables of the ridges in the many rows can be continuously harvested by reciprocating the harvester.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a root vegetable harvesting machine, for example, radish, carrot,
This relates to digging up and harvesting root vegetables such as glutinous vegetables.

(Prior art) Various configurations have been proposed for harvesting machines for harvesting root vegetables such as radishes, but most of these machines generally have a digging structure at the lower front of the main body frame. At the same time, a conveyor is connected to the rear of this digging body, and the root vegetables are dug up in the front part in the direction of movement by the digging body, and the root vegetables are carried to the conveyor, and the conveyor is connected to the rear of the digging body. A conveyor transports root vegetables to the rear in the direction of travel.

(Problem to be Solved by the Invention) According to the above-mentioned harvesting machine, the dug up root vegetables are discharged to the rear in the direction of travel, that is, on the ridge after the root vegetables have been dug up. The next row of root vegetables cannot be dug up and harvested unless the root vegetables are removed to the side or picked up after each step of digging.
Therefore, there is a problem in that root vegetables in each row cannot be continuously dug up and harvested, which is unfavorable in terms of work efficiency.

The present invention has been made in view of these points, and allows root vegetables to be dug up on one side in the direction of travel and transported to the other side in the direction of travel.
The object of the present invention is to provide a root vegetable harvesting machine that is capable of continuously digging up and harvesting root vegetables in multiple rows and is preferable in terms of work efficiency.

[Structure of the invention]

(Means for Solving the Problems) The root vegetable harvesting machine of the present invention includes a main body frame, an excavator provided on one side of the main body frame for digging up root vegetables,
A carry-in part that is connected to the rear part of the main body frame and carries in the dug up root vegetables is located close to the rear part of the digging body, and a carry-out part for the root vegetables is arranged on the other side opposite to the carry-in part. The transport conveyor is provided on the main body frame side so that the overall width dimension in the traveling direction can be varied by rotation.

(Function) In the root vegetable harvesting machine of the present invention, the main body frame of the machine is connected to, for example, a three-point linkage mechanism of a tractor, and
The excavated body on one side of the main frame faces the ridges of the rows of root vegetables to be harvested.

Next, when the machine is towed by a tractor, the root vegetables in the ridges are successively ground up by the excavator, and the root vegetables are successively carried into the loading section of the conveyor.

Then, each root vegetable is sequentially transported from the carry-in section on the side in the direction of travel toward the other side in the direction of travel, and from the carry-out section on the other side to the side in the direction of travel after digging up the root vegetables. That is, they are sequentially carried out to the opposite side of the excavation body. Therefore, since space for the machine to move is secured, root vegetables in multiple rows of ridges can be continuously dug up and harvested by moving the machine back and forth.

Furthermore, when moving, transporting, or storing in a non-working state, the entire conveyor is rotated to reduce the overall width in the direction of movement.

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

In FIGS. 1 and 2, 1 is a main body frame, and this main frame 1 has a main frame 2 extending in the left-right direction, and a transmission 4 having an input shaft 3 on one side of this main frame 2.
are provided, and left and right lower arms 6 having lower bins 5 at their tips protrude from one end and the intermediate part of the main frame 2 to the front part, and these left and right lower arms 6 and the upper part of the transmission 4 to the front part are provided. A mast 7 protruding from is connected to the mast 7 by a stay 8. Further, a support frame 11 parallel to the main frame 2 is fixed to a connecting piece 9 at the rear end of the mast 7 and a connecting piece 10 connected to the rear end of the lower arm 6 at one end.

A pair of left and right plate-shaped support frames 12 extending in the front-rear direction are arranged at the other ends of the main frame 2 and the support frame 11 at a predetermined interval. An output end of an output shaft 13 of the mission 4 rotatably inserted into the main frame 2 is rotatably supported, and a cam 14 is fixed to the output end of the output shaft 13. Further, the tip of a vibrating arm 17 extending in the front-rear direction is pivotally attached to the protrusion 15 engaged with the cam 14 via a support shaft 16 so as to be rotatable in the vertical direction. The lower portion is pivotally supported via a horizontal shaft 18 between the rear end portions of the pair of left and right plate-shaped support frames 12 so as to be freely rotatable in the vertical direction. Furthermore, the vibrating arm 1
An upper end of a support 19 is fixed to the rear end of the support 7 by a plurality of removable bolts and nuts 20 so as to be vertically adjustable, and an excavation body 21 is fixed to the lower end of the support 20. This excavation body 21 is constructed by fixing a plurality of tips 22 whose tips are formed in a mountain shape in parallel in the left-right direction, and each group of tips 22 is slightly inclined forward and downward to support a support. It is fixed to 20. Further, a support arm 25 having a grounding ring 24 pivoted on an intermediate portion of the support frame 11 is attached to an adjustment mechanism 26.
It is attached so that its position can be adjusted in the vertical direction via the .

Left and right connecting arms 27. are connected to the support frame 11 on both sides of the support arm 25. H is integrally provided on the rear part,
A conveyor 31 is attached to the rear end of this connecting arm 27, 28.
is located at the rear part of the main body frame 1 and connected thereto.

The conveyor 31 has a connecting frame 32 extending in the left-right direction, and the connecting frame 32 is substantially parallel to the supporting frame 11! and an inclined connecting frame 32b that is inclined toward the right front from the middle part thereof, and connecting portions 331.
33b is provided protrudingly. Moreover, the connection frame 32
The connecting frame 32! is connected via a plurality of support pieces 34 of different lengths to the upper rear side of the connecting frame 321 and the inclined connecting frame 32b. The front conveyor frame 35, which has a support part 351 parallel to the above and an inclined support part 35b parallel to the inclined connection frame 32b, is connected to the front conveyor frame 35 in a manner that gradually inclines higher from the right side of the side part in the direction of travel to the left side of the other side part in the direction of travel. One right end 35c of the front conveyor frame 35 is brought close to the inner rear part of the excavation body 21, and a guide 36 that expands inward is fixed to the right one end 35c. Further, a guide path 37 is formed at a predetermined interval in the rear part of the front conveyor frame 35, and a support part 38 is parallel to the support part 351! A rear conveyor frame 38 having an inclined support part 38b parallel to the inclined support part 35b is connected integrally with the front conveyor frame 35 by a plurality of inverted U-shaped connectors 39 at the same level as the front conveyor frame 35. An extension part 40 is formed at one end of the inclined support part 311b of the conveyor frame 38, protruding outward from the one end 35c of the front conveyor frame 35 and close to the outer rear part of the excavation body 21. Furthermore, guide rollers 41 are provided at each of the bent portions of the connecting frame 32, the front conveyor frame 35, and the rear conveyor frame 38. 42.
43 is rotatably mounted on a shaft, and sprockets 44, 44, 45, 45 are rotatably mounted on both left and right ends of the front conveyor frame 35 and rear conveyor frame 38, and these left and right sprockets 44. Between 44, 45, and 45, the intermediate guide roller 41. A pair of endless rotating bodies 46, 46 are suspended so as to be able to move together inwardly in opposite directions via 42 and 43. Further, a sprocket 4 on the other end side of the front conveyor frame 35 and the rear conveyor frame 38 is provided on the other end side.
A motor 47 is provided to drive the motors 4 and 45, and by driving the motor 47, the pair of front and rear endless rotating bodies 46, 46 are rotated inwardly in opposite directions. Although not shown, the pair of front and rear endless rotating bodies 46 are made of endless chains, and a large number of clamping pieces made of elastic members having a predetermined length are fixed to the outside of the links of the endless chains. The pair of front and rear endless rotating bodies 46 are disposed so as to be freely rotatable in parallel, and their clamping pieces abut against each other in the inner circular parts to move in the same direction, and root vegetables are grown between the clamping pieces. As a type, for example, a predetermined position of radish A is held, and the first
As shown in the figure, a loading section 48 which is approximately V-shaped in plan view and is close to the rear part of the excavation body 21 is formed between the right end of one side of the inner circulating section. A carry-out section 49 is formed between the left end of the other side of the section.

Further, the rear side portion of the front conveyor frame 35 and the front portion of the rear conveyor frame 38 are biased outward while guiding the transition of the inner rotating portions of the pair of endless rotating bodies 46. A plurality of guide bodies 50 are provided, and the pair of endless rotating bodies 46 rotate while being urged to approach each other at their inner rotating parts.

Further, tension rollers 51 for guiding the outer rotating portion of the endless rotating body 46 are elastically supported at predetermined positions on the front 0111 portion of the front conveyor frame 35 and the rear side portion of the rear conveyor frame 38 so as to be movable forward and backward. ing.

Then, as shown in FIGS. 1 and 3, a connecting portion 33b of an example of the connecting frame 32 is horizontally attached to a connecting portion 53 provided at the rear end of the − side connecting arm 27 with a support shaft 54. They are connected so that they can rotate in any direction. Further, a connecting portion 55.51i is provided at the rear end and intermediate portion of the connecting arm 28 on the other side, and the arm 5 is connected to either of the connecting portions 55.56.
The front end of the arm 57 is detachably connected to the connecting shaft 58, and the rear end of the arm 57 is connected to the connecting portion 33 on the other side of the connecting frame 32! It is horizontally rotatably connected to the support shaft 59. A connecting portion 56 at the intermediate portion of the connecting arm 28
When the front end of the arm 57 is connected to the front end of the arm 57, as shown by the solid line in FIG.
, the total width of the transport conveyor 31 in the direction of movement is L, and when the front end of the arm 57 is connected to the connecting portion 55 at the rear end of the connecting arm 28, As shown by the chain line in FIG. 1, the total width of the conveyor 31 in the traveling direction becomes as small as a pine tree.

In this way, the conveyor 31 is provided on the main body frame 1 side so that its overall width in the traveling direction can be varied by rotating around the support shaft 54.

In the above configuration, the lower pins 5 of the left and right lower arms 6 of the main body frame 1 and the connecting parts of the mast 7 are connected to the three-point connecting part of the three-point link mechanism of the tractor, and the transmission 4 of the main body frame 1 is connected to the power take-off shaft of the tractor. The input shafts 3 of the two are connected via a power transmission shaft.

In addition, as shown in the figure, the connecting arm 2 on the main body frame 1 side
The front end of the arm 57 is connected to the intermediate connecting portion 56 at 8.

Next, use the tractor to excavate body 2 on the right side of one side of the machine.
1 is placed facing the ridge in which radish A is cultivated, and while the machine is towed by a tractor, the input shaft 3 is rotated by the power from the tractor, and the output end of the machine is rotated through the rotation of the output shaft 13. The rotation of the cam 14 causes the vibration arm 17 and the column 19 to rotate in the vertical direction about the horizontal shaft 18, and the excavation body 2
1 is vibrated up and down from the rear lower part of the radish A in the soil of the ridge toward the front. Moreover, when the motor 47 is started while moving each of the above-mentioned parts, the endless rotating body 4 between the left and right sprockets 44 of the front conveyor frame 35
6 is rotated clockwise in FIG. 1, and the endless rotating body 46 between the left and right sprockets 45 of the rear conveyor frame 38 is rotated counterclockwise in FIG. are each carried inwardly toward each other synchronously and at the same speed.

As a result, the soil in the ridge is expanded and softened by the vibrating thinning action of the digging body 21, and the radish A cultivated in this ridge is successively lifted up, and the radish A is transferred to the conveyor 31 before it sinks. They are sequentially carried into the carrying-in section 48 of the pair of endless rotating bodies 46 via the guides 36.

Further, the upper part or the base of the stems and leaves of the radish A carried into the carrying-in part 58 is held between the inner running parts of the pair of endless running bodies 4, and is transferred from the carrying-in part 48 on one side of the guide path 37. The radish A is transported while being suspended upward in order toward the carry-out section 49 on the other side in the direction of travel, and the radish A is transported from the carry-out section 49 on the other side to the left side in the direction of progress after being dug up. That is, they are sequentially carried out to the side part on the opposite side from the excavation body 21 on the right side part. In this case, by the large number of clamping pieces provided on the outer side of the pair of endless rotating bodies 46, the clamping pieces are sequentially moved while facing each other in the inner rotating part, so that the radish is placed between the opposing clamping pieces. The upper part of the radish A or the base of the stems and leaves, etc., are automatically clamped, and the radish A is gradually carried and carried out from the carrying-out section 49 while being gradually suspended upward.

At this time, the pair of endless rotating bodies 46 includes a plurality of guide bodies 50 and tension rollers 5! on the inner and outer sides. Since a predetermined position of the radish A is sandwiched between the inner rotating parts, the pair of endless rotating bodies 46 are further tensioned, and therefore the radish A falls during transportation. Never.

In this way, as the machine advances, this direction of travel -
The radishes A, which are successively thinly soiled at the right end of the side, are sequentially carried out and dropped to the left end of the other side in the direction of travel. Therefore, since space for the machine to move is secured, by moving the machine back and forth, root vegetables in multiple rows of ridges can be continuously dug up and harvested.

The vertical movement of the grounding ring 24 is adjusted depending on the type of root vegetables such as radish A and their growth degree, and settings are made in advance so that root vegetables of various sizes can be reliably floated.

In addition, when moving, transporting, or storing in a non-working state, the connecting shaft 58 connecting the connecting portion 56 of the connecting arm 28 and the front end of the arm 57 is pulled out, and the arm 5
7 is connected to a connecting portion 55 at the rear end of the connecting arm 28 by a connecting shaft 58. Along with this, the entire transport conveyor 31 is connected to the connecting arm 27 on the negative side and the connecting part 33 on the one side.
The conveyor 31 rotates around the support shaft 54 connected to the main shaft 54 as a fulcrum, and the conveyor 31 rotates from the state shown by the solid line in FIG. 1 to the state shown by the chain line in FIG. It becomes small like a pine tree.

If the width of the transport conveyor 31 protrudes from the width of the main body frame 1 in the working state, moving or transporting in this state tends to cause the protrusion to get in the way, which is also unfavorable from a safety point of view. However, as described above, by rotating the transport conveyor 31 to reduce the overall width in the direction of movement, safety during movement and transportation can be improved, and the space required for storage can be reduced. Can be done.

(Effects of the Invention) According to the present invention, root vegetables can be dug up on one side in the direction of travel, and these root vegetables can be transported to the other side in the direction of travel. It is possible to continuously dig up and harvest root vegetables, thereby providing a root vegetable harvesting machine that is favorable in terms of work efficiency.

Additionally, when moving, transporting, or storing while not in operation, the entire conveyor can be rotated to reduce its overall width in the direction of travel, improving safety and reducing storage space. .

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of the root vegetable harvesting machine of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a sectional view of the section (■) in FIG. 1. DESCRIPTION OF SYMBOLS 1... Main body frame, 21... Excavation body, 31... Transfer conveyor, 48... Carrying-in part, 49... Carrying-out part.

Claims (1)

[Claims] (1) A main body frame, an excavation body provided on one side of the main body frame for digging up root vegetables, and a loading unit connected to the rear of the main body frame and for carrying in the dug up root vegetables. a conveyor which is located close to the rear part of the excavation body and has a root vegetable carry-out section on the other side opposite to the carry-in section; A root vegetable harvesting machine characterized by having a variable overall width in the direction of travel.