JP6816865B2 - Rhizome crop digging device - Google Patents

Description

The present invention relates to a rhizome crop digging device having an excavation blade for digging rhizome crops and having a conveyor portion for transporting a harvest such as garlic dug up by the excavation blade while sieving the soil.

As the prior art of this kind of digging device, for example, "digging device" of Japanese Patent Application Laid-Open No. 5-68217 (conventional technique 1) and "storage device, agricultural product" of JP-A-2006-288277 (previous technique 2). "Harvester" is disclosed.

In the prior art 1, "in a digging device including a machine frame, an excavating blade, and a conveyor inclined rearward, an auxiliary plate hanging from the rear end of the conveyor and a U-shaped cross section released by the front portion are used. A digging device characterized in that a dropper is formed of the storage container, the storage container is suspended by a support shaft, and the front part of the storage container is always in contact with the auxiliary plate described above. " Therefore, there is a disclosure of a digging device that tilts the storage container backward when the amount of the harvested material reaches a certain amount in the storage container and releases the harvested material at once.
Further, the prior art 2 includes "a storage object carrying device for carrying a stored object into a storage container, the terminal position facing the input port of the storage container, and a conveyor provided with an endless transport body. It is a stored object loading device characterized in that the peripheral speed of the rotational transmission element that moves the body causes uneven speed. ”This causes variations in the throwing speed of the stored object to be put into the storage container. It is disclosed to eliminate the uneven accumulation in the storage container.

Jikkenhei 5-68217 (Prior Technique 1) Japanese Unexamined Patent Publication No. 2006-288277 (Prior Technique 2)

The harvested material dug up by the conventional digging device is transferred diagonally upward by the conveyor, discharged from the rear end of the conveyor, and stored in a storage container provided in the lower portion. However, since the position where the container is released and dropped is the same, the dropped position is accommodated in a raised state and becomes a biased state, and there is a problem that the volume of the storage container cannot be used efficiently and efficient work cannot be performed. It was. The same problem occurs in the digging device of the prior art 1.

In the case of the prior art 2, the transfer speed of the conveyor to be conveyed is uneven, and the falling direction is changed. However, in the case of a rhizome crop digging device that has a conveyor section that transports harvested products such as garlic dug up by a drilling blade while sieving the soil, if the transport speed becomes uneven, the soil drop performance and transport Since performance is affected, it is necessary to secure an appropriate constant speed, and there is a problem that such a configuration cannot be established.

Therefore, an object of the present invention is to use a rhizome crop digging device having a conveyor portion for transporting harvested products such as garlic dug up by a drilling blade while sieving the soil, and the harvested products are stored in a storage container for the harvested products. The purpose is to provide a digging device for rhizome crops that can be stored without bias.

In order to solve the above problems, the excavation blade part that passes through the lower part of the rhizome crop and digs up,
The conveyor section has a conveyor that shakes off the soil while transporting the rhizome crops that have been dug up diagonally upward and backward located behind the excavation blade, and the conveyor section has a plurality of conveyor shafts and conveyor shafts that are provided diagonally upward and backward. Digging of rhizome crops that are attached to traveling vehicles such as tractors that have multiple star-shaped finger rolls provided horizontally on the left and right and have a storage section that stores the rhizome crops dug below the end of the conveyor section. In the picking device
At the end of the conveyor,
A guide plate that receives the underground sprocket crop that has fallen from the conveyor and changes the fall direction is provided, and the guide plate is rotatable in the front-rear direction around a horizontal rotation axis orthogonal to the traveling direction, and is a conveyor. It swings back and forth in conjunction with the part drive unit, and the rocking drive is a rocking drive sprocket that is located below the transport shaft at the rear end of the conveyor unit and rotates in conjunction with the transport shaft. wherein an eccentric shaft provided in parallel with the rotary shaft at a position eccentric in the radial direction from the axis of rotation of the drive sprocket, a swing rod connecting the hole for coupling provided on the eccentric shaft and the guide plate, to be carried out by We propose a digging device for underground sprocket crops.

In addition, we propose the above-mentioned rhizome crop digging device in which a plurality of connecting holes are provided and the swing angle of the guide plate can be changed by replacing the swing rod .

According to the present invention, the guide plate that receives the rhizome crop that has fallen from the conveyor section and changes the falling direction is oscillated back and forth in conjunction with the drive section of the conveyor section, so that the harvested product that has fallen into the storage section is moved back and forth. It is stored evenly, and the volume of the storage part can be used efficiently. Therefore, the storage unit can be replaced efficiently, and the digging work efficiency is improved. In addition, the configuration in which the swing angle of the guide plate can be changed has the effect of being able to adjust the drop position that changes depending on the crop conditions in various ways.

It is a side view of the rhizome crop digging device which carried out this invention. It is a front view of the rhizome crop digging device which carried out this invention. It is a rear view of the rhizome crop digging device which carried out this invention. It is a side view of the state in which the protective cover which showed the conveyor part drive part of the rhizome crop digging device which carried out this invention was removed. It is a side view which showed the guide plate part of this invention. It is a side view which showed the guide plate part of this invention. It is a rear view of a part of the guide plate part of this invention. It is a side view which showed another Example of the guide plate part of this invention.

Hereinafter, an example of a rhizome crop digging device used by attaching an embodiment of the present invention to a tractor will be described with reference to FIGS. 1 to 8. In this description, the left side shown in FIG. 1 will be described as the front side in the traveling direction.

The rhizome crop digging device according to the embodiment of the present invention is attached to a traveling device such as a tractor to dig up rhizome crops such as garlic while proceeding. In the rhizome crop digging device according to the embodiment of the present invention, the ground between the two ridges on both sides of the ridge in which the rhizome crop C is cultivated is grounded by a sledge-shaped shoe 12, and the height is kept constant. , The bulb portion of the rhizome crop C such as garlic cultivated in the soil of the ridge is dug up by the excavation blade portion 2 provided in the direction perpendicular to the traveling direction. Then, it is conveyed rearward by the conveyor portion 3, which is a conveyor portion provided behind the excavation blade portion 2. The conveyor section 3 is provided diagonally upward to the rear, and transports the soil to the rear while removing the soil adhering to the rhizome crop C dug up during the transportation. The transported rhizome crop C falls downward from the rear end of the conveyor unit 3 and is stored in the bucket 70 of the storage unit 7 provided below.

A top link pin 11 is provided in the upper portion and lower ring pins 10 are provided in the lower left and right in the central portion in the front of the machine body, and is for connecting to the three-point link mechanism portion of the tractor. The top link pin 11 is connected to the top link of the three-point link mechanism portion of the tractor, and the lower link pin 10 is connected to the lower link. The tractor's three-point link mechanism is capable of raising and lowering the connected digging device. A gear box 5 is provided at the center of the front of the machine body, and an input shaft 4 projecting forward from the gear box 5 is provided. Although not shown, the input shaft 4 is connected to the tractor PTO shaft by a universal joint, and the power of the tractor is transmitted to the gear box 5.

An excavation blade 23 of the excavation blade portion 2 is provided at the lower end portion in front of the machine body. The excavation blade 23 has a flat plate shape in the left-right direction provided with a blade having an acute angle at the front end edge, and is inclined backward and backward. Further, a plurality of round bar-shaped guide rods extending rearward are provided on the trailing edge in the left-right direction to guide the rhizome crop C to the rear. The left and right ends of the excavation blade 23 are fixed and held by the flat plate-shaped excavation blade side arms 20 with their end faces facing forward. The excavation blade side arm 20 is raised upward from the excavation blade 23, and the upper end portion is further fixed to a pipe-shaped excavation blade frame 21 provided in the left-right horizontal direction. In the excavation blade frame 21, the lower end side of the excavation blade frame swing shaft 22 in the left-right horizontal direction provided on the front side of the excavation blade frame 21, that is, the excavation blade 23 portion can swing in the front-rear direction. An arm provided toward the rear is provided at the center of the excavation blade frame 21, and is rotatably connected to the end of the arm and a crank portion and a rod provided on the input shaft 4 at the front of the gearbox 5. To. The eccentric portion of the crank portion causes the excavation blade frame 21 to oscillate back and forth, and the excavation blade 23 fixed to the excavation blade frame 21 also oscillates back and forth at the same time. The excavation blade 23 is hung in a direction perpendicular to the traveling direction, passes through the lower part of the rhizome crop C, cuts the roots, softens the soil to raise the rhizome crop C, and is placed on the rear conveyor portion 3. Rhizome crop C is moved as it travels.

In the conveyor section 3 which is the transport body of this example, a plurality of transport shafts 32 provided with a plurality of star-shaped finger rolls 30 horizontally are provided so as to be diagonally upward and rearward, and the rhizome crop C is placed on the upper surface of the conveyor section 3, respectively. Is configured to rotate in the direction of moving upwards. The rhizome crop C placed on the upper surface of the conveyor portion 3 moves backward while being flipped up by the rotating finger roll 30, and the soil adhering to the rhizome crop C is wiped off and moves backward.

The left and right ends of the transport shaft 32 are rotatably held by bearings on the lower side of the side plates 31 erected on the left and right sides, and in this example, the shaft end portions projecting on the left outer side of the side plates 31. The sprocket 60 is fixed to each of the sprockets 60, and the roller chain 62 is wound between the adjacent sprockets 60, and the respective transport shafts 32 rotate integrally with each other. The power input to the input shaft 4 is transmitted by the bevel gear in the gear box 5 to the output shaft 51 passing through the left side of the pipe frame 50 fixed to the left and right sides of the gear box 5, and is transmitted to the left end portion of the output shaft 51. The output shaft sprocket 52 fixed to the outside of the side plate 31 is rotated. The output shaft sprocket 52 and the front row sprocket 60 of the transport shaft 32 are interlocked with each other via a roller chain, and the conveyor unit drive unit 6 is configured so that the conveyor unit 3 is rotationally driven when the input shaft 4 rotates. ing.

The rhizome crop C conveyed rearward by the conveyor unit 3 falls downward from the rear end portion of the conveyor unit 3 and is stored in the bucket 70 of the storage unit 7 in the lower portion. The bucket 70 is provided above the bucket 70 and can rotate backward about a rotation fulcrum shaft 71 of a horizontal axis orthogonal to the traveling direction shown in FIG. 6. By rotating, the rhizome is housed from the front side of the bucket 70. Crop C can be discharged together. The rotation of the bucket 70 is performed by being pulled up by the bucket opening drive unit 72.

A guide plate 8 is provided at the rear end of the conveyor portion 3 to temporarily receive the falling rhizome crop C and drop it downward. The guide plate 8 has a flat plate shape provided about the same width as the width of the conveyor portion 3, and a rotating shaft 80 having a front end edge portion provided below the upper surface of the conveyor at the rear end portion of the conveyor portion 3 in the left-right horizontal direction. The rear side is rotatably provided. The guide plate 8 is oscillated back and forth in conjunction with the conveyor unit drive unit 6.

At the left end of the guide plate 8 of this example, a drive unit for swinging the guide plate 8 back and forth is provided. On the side plate 31, a sprocket 60 fixed to a transport shaft 32 located at the rear end of the conveyor portion 3 and a swing drive sprocket 82 around which a swing drive roller chain 83 is wound and rotational power is transmitted are provided on the conveyor portion 3. It is provided on the lower side. The rocking drive sprocket 82 is provided with an eccentric shaft 84 parallel to the rotating shaft fixed outwardly at a position eccentric in the radial direction from the rotating shaft. Further, a rotating shaft 80 projecting laterally is provided from the left and right ends of the guide plate 8 and is rotatably held on the side plate 31 side of the main body. Then, a hole for connecting in the left-right direction is provided located on the rotating end side of the rotating shaft 80 at the left end. The rocking drive sprocket 82 and the guide plate 8 are interlocked with each other by a rocking rod 81 engaged with an eccentric shaft 84 of the rocking drive sprocket 82 and a hole for connecting the guide plate 8.

The swing rod 81 has a flat side view, has a fitting hole inserted into the eccentric shaft 84 at one end, and a connecting shaft oriented in the left-right direction inserted into the connecting hole of the guide plate 8 at the other end. 85 is fixed. When the conveyor unit 3 is rotationally driven and the transport shaft 32 is rotated by being inserted and connected to each other, the swing drive sprocket 82 is rotated, and the eccentric shaft 84 fixed to the swing drive sprocket 82 is rocked. It rotates around the rotation axis of the sprocket 82. Then, the swing rod 81 in the direction orthogonal to the rotation axis of the swing drive sprocket 82 connected to the eccentric shaft 84 reciprocates, and the guide plate 8 connected to the other end swings back and forth.

By swinging the guide plate 8 back and forth, the rhizome crop C falling from the rear end of the conveyor portion 3 is changed in the front-back direction by the guide plate 8. That is, the rhizome crop C is evenly dropped in the bucket 70 of the storage unit 7 in the front-rear direction by the guide plate 8 that swings back and forth at a constant speed, and is efficiently stored without being biased.

FIG. 8 shows another embodiment in which the swing angle of the guide plate 8 is adjustable. A plurality of connecting holes 86 for inserting the connecting shaft 85 of the swing rod 81 of the guide plate 8 are provided at positions where the radius of rotation of the guide plate 8 with respect to the rotation shaft 80 is different so that the swing rod 81 can be replaced. It is provided. That is, when connected to a position where the turning radius with respect to the rotating shaft 80 is small, the swing angle of the guide plate 8 becomes large, and when connected to the connecting hole 86 at a position where the turning radius is large, the swing angle becomes small. .. By changing the swing angle, the drop position can be adjusted differently depending on the type and size of the rhizome crop C, so that the bias can be adjusted more accurately.

Further, if the swing drive sprocket 82 and the sprocket of the transport shaft 32 are interchangeable and the number of teeth is changed, the swing speed can be changed and the bias can be further adjusted.

Next, the digging operation by the digging device for the rhizome crop, which is the embodiment of the present invention, will be described. The rhizome crop digging device according to the embodiment of the present invention is attached to a traveling device such as a tractor to dig a rhizome crop such as garlic while traveling.

An excavation blade is used for digging a rhizome crop according to an embodiment of the present invention while running a tractor traveling wheel and a warp-shaped shoe 12 between two ridges on both sides of a ridge in which the rhizome crop C is cultivated. The excavation blade 23 of the part 2 is passed below the bulb part of the rhizome crop C such as garlic cultivated in the soil of the ridge. The excavation blade 23 swings back and forth to cut the roots by passing through the lower part of the rhizome crop C, and at the same time, the soil is softened to raise the rhizome crop C, and the rhizome crop C is placed on the rear conveyor portion 3. Is moved as it travels.

The rhizome crop C transported by the conveyor unit 3 is transferred to the rear while being flipped up by a large number of star-shaped finger rolls 30 of the transport shaft 32 provided diagonally upward from the front to the rear, and the adhering soil is sieved off. Then, it naturally falls from the rear end of the conveyor unit 3 and is stored in the storage unit 7 for harvesting.

When falling from the rear end of the conveyor portion 3, the guide plate 8 temporarily catches the fall, swings back and forth to disperse the falling direction back and forth, and the bucket 70 of the storage portion 7 is evenly distributed to the rhizome crop C. Store.

When the rhizome crop C stored in the bucket 70 is full, the bucket opening drive unit 72 is moved to rotate backward around the rotation fulcrum shaft 71 of the horizontal axis provided above the bucket 70 in the direction of travel. Then, the rhizome crops C housed from the front side of the bucket 70 are collectively discharged.

By storing in the bucket 70 so as not to be biased, the number of discharges can be reduced, so that the work efficiency can be improved.

The present invention can be used efficiently for a digging device provided with a storage portion for rhizome crops such as garlic that has been dug.

2 Excavation blade part 20 Excavation blade side arm 21 Excavation blade frame 22 Excavation blade frame swing shaft 23 Excavation blade 3 Conveyor part (conveyor body)
30 Finger roll 31 Side plate 32 Transport shaft 34 Drive shaft 4 Input shaft 5 Gearbox 50 Pipe frame 51 Output shaft 52 Output shaft Sprocket 6 Conveyor drive unit 60 Sprocket 62 Roller chain 7 Storage unit 70 Bucket 71 Rotating fulcrum shaft 8 Guide plate 80 Rotating shaft 81 Swing rod 82 Swing drive sprocket 83 Swing drive roller chain 84 Eccentric shaft 85 Connecting shaft 86 Connection hole C Underground stem crop

Claims (2)

An excavation blade that passes through the lower part of the rhizome crop and digs up,
A conveyor section having a conveyor that shakes off the soil while transporting the rhizome crops dug up diagonally upward and backward located behind the excavation blade, and a plurality of conveyor shafts and the conveyors provided diagonally upward and rearward. Rhizome used by being attached to a traveling vehicle such as a tractor, which has a plurality of star-shaped finger rolls provided horizontally on the shaft and has a storage portion for storing underground stem crops dug below the end of the conveyor portion. In the crop digging equipment
At the end of the conveyor,
A guide plate is provided to change the direction of fall by receiving the rhizome crops that have fallen from the conveyor section, and the guide plate is rotatable in the front-rear direction around a horizontal rotation axis orthogonal to the traveling direction, and is a conveyor. It swings back and forth in conjunction with the drive unit,
The rocking drive is located below the transport shaft at the rear end of the conveyor portion and rotates in conjunction with the transport shaft in a radial direction from the swing drive sprocket and the rotation shaft of the rocking drive sprocket. said rotary shaft in an eccentric position and provided parallel to the eccentric shaft, a swing rod connecting the hole for coupling which is provided on the eccentric shaft and the guide plate,
A rhizome crop digging device characterized by being carried out by. The rhizome crop digging according to claim 1, wherein a plurality of the connecting holes are provided, and the swing angle of the guide plate can be changed by replacing the swing rod. apparatus.

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