JPH0414975Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to an onion harvesting device, and can be used as a harvester that digs up onions while being towed by a tractor.

[Problems to be solved by the prior art and the invention] Conventionally, this type of technology was disclosed in Japanese Patent Application Laid-Open No.
Like the device described in Publication No. 50836, the onion leaves and stems are drawn between rollers that rotate in opposite directions,
There is a method in which the onion leaves and stems, which are facing downward, are cut with a cutting blade provided at the rear end of the conveying roller, or a method described in Japanese Patent Application Laid-Open No. 52-61536, in which the leaves and stems of the onion are cut in a reverse position. There was one in which the leaves and stems of onions were made to stand up with a brush, and then cut with a rotating disk.

However, in the former case, the equipment is large, the leaves and stems are often not drawn between the rollers, and the long leaves are transported backwards while remaining tangled, and the leaves and stems are recovered without being cut. It had the disadvantage of being expensive.

In the latter case, since the brush and the rotary disk were installed at a distance in the front-rear direction, even though the brush was pulling up the leaf stalk, when cutting the leaf stalk, the leaf stalk had to be pulled up again. The problem was that the leaves would fall over and the leaves and stems would be cut incorrectly.

[Means for Solving the Problems] This invention is proposed to solve the above-mentioned problems, and takes the following technical measures.

That is, a digging device 11 for digging up onions 1, a leaf and stem pulling device 15 having a lifting lug 5, and a cutting device 6 for cutting the raised leaves and stems into a predetermined length.
Conveying device 2 that conveys onions 1 whose leaves and stems have been cut
The leaf and stem pulling device 15 is provided above the conveying device 2 so as to overlap with each other, and the cutting device 15 is provided in the lifting and conveying path 3 formed by the leaf and stem pulling device 15. It is characterized by:

[Example] The onion harvester described in this example is of a type that is towed by a tractor.

Onions 1 are planted in rows in a field, the bulbs 8 are relatively shallow below the soil surface, and the leaves and stems 4 lie on the soil surface.

The conveyor 2 is provided so as to be inclined toward the soil surface on the front side from the front end of the working vehicle body 7 in the traveling direction, and has left and right arms 9, 9 attached at their base ends to the vehicle body 7 and protruding forward and downward. supported.

Two wide conveyor belts are stretched between the front and rear pulleys 10, 10, and are rotated in the direction of arrow B in FIG. Reference numeral 11 denotes a digging device, which is composed of one fixed blade and is provided at the front of the conveyor 2.

Above the conveyor 2, the front and rear shafts 12, 12
A chain 13 is wound around the sprocket fixed to the sprocket, and lifting lugs 5 for lifting the leaf and stem portions 4 of the onion 1 are attached to the chain 13 at appropriate intervals. On the lower side of the chain case part 14, the lifting lugs 5... fall down,
The lifting lugs 5 rise from the front starting end of the chain case part 14 to the upper side, and the rising lifting lugs 5 abut and join to the leaf and stem parts 4 of the onion.

As shown in FIG. 2, a conveying path 3 through which onions can pass is provided between the pair of left and right lifting lugs 5. In this embodiment, two sets of conveyance paths 3, 3 are formed as shown in FIG.

A cutting device 6 for cutting the leaves and stems 4 of the onion 1 is composed of a rotating disk-shaped cutter, and is attached to a cutter shaft 17 that projects upward from an interlocking gear case 16. As is clear from the figure, the rotating disk is
It is provided so as to face the inside of the conveyance paths 3, 3, and cuts the onions to a predetermined length while being conveyed.

A tractor is mounted on the front of the onion harvesting work vehicle body 7.
An input shaft 18 is provided that receives power from the PTO. Further, a transfer conveyor 21 is provided which receives the onion 1 from the transfer end of the conveyor 2 and transfers it to the upper part of the work vehicle body 7.

The transfer conveyor 21 is driven to rotate in the direction of the arrow by receiving the power from the power take-off shaft 18, and the endless belt 2
3 drives the rear shaft 24 of the conveyor 2, and this rotation rotates the rear shaft 12 which drives the lug 5 through the endless band 25, and from this shaft 12 through the interlocking gear case 16, the cutter shaft 17 is driven. Rotate in conjunction.

Although two sets of onion transport paths 3 are provided in this embodiment, a single row of onion transport paths 3 may be used. Further, the digging blade 11 is
A vibrating type may be used instead of a fixed type.

Next, the effects of the upper row will be explained.

When the working vehicle body 7 is moved in the direction of arrow A while rotating each rotating part, the blade of the digging device 11 moves through the soil and digs out the onions 1 on the ground surface.

Then, at the front end of the chain case part 14, the lifting lugs 5... raise up the leaf and stem part 4 of the onion 1 to make the leaf and stem part 4 stand up, and the onion 1 is picked up by the rotating conveyor 2. Transfer to the rear.

At this time, the conveyor 2 and the lifting lugs 5... rotate in the same direction, the conveyor 2 supports the balls 8, the leaf stems 4 are supported from both sides by the lifting lugs 5..., and the onion 1 is moved rearward. The leaf stem portion 4 is cut at a predetermined length by a cutting device 6 provided facing into the conveyance path 3. While the onion 1 is being transported backward by the conveyor 2, the leaf and stem part 4 is lifted by the lifting lug 5, so that it does not fall to the side.

Then, the leaf portion with the leaf base portion 19 left is moved from the transfer end portion of the conveyor 2 to the shallow plate 2 of the transfer conveyor 21.
0, and is lifted above the work vehicle body 7 and transferred to a recovery section (not shown).

Although not shown, this transfer conveyor 2
If an onion reversing section is further provided on the lower side in the conveyance direction of 1, the onions are arranged so that the stems face downward, and another cutting device is provided to cut the leaves and stems facing downward, cutting errors can be reduced. Become.

[Effect of the invention] Since this invention is constructed as described above, the onion 1 dug out by the digging device 11 is lifted by the leaf and stalk lifting device 15 so that the leaf and stalk part 4 stands upward. Even if one onion
Even if the long leaves of
It is easily unraveled by

Then, the loosened leaf and stem portion 4 is lifted upward and transported rearward in that state, and the leaf and stem portion 4 is reliably cut into a predetermined position by a cutting device 6 provided facing into the conveyance path 3. It will be cut to length.

Further, since the leaf and stem pulling device 15 is provided so as to overlap above the conveying device 2 that conveys the onions 1, there are practical effects such as being able to shorten the longitudinal length of the entire device.

[Brief explanation of drawings]

The drawings show an embodiment of this invention; FIG. 1 is a side view of the main part, FIG. 2 is a plan view thereof, and FIG. 3 is a side view of the main part with some parts omitted. Explanation of symbols, 1... Onion, 2... Conveyance device (conveyor), 3... Conveyance path, 4... Leaf and stem portion, 5
... Lifting lug, 6... Cutting device, 15... Leaf and stem pulling device.

Claims (1)

[Scope of utility model registration request] A digging device 11 for digging up onions 1, a leaf and stem pulling device 15 having a pulling lug 5, a cutting device 6 for cutting the raised leaves and stems into a predetermined length, and an onion whose leaves and stems have been cut. The leaf and stem lifting device 15 is provided so as to overlap above the conveying device 2, and a cutting device is provided in the lifting and conveying path 3 formed by the leaf and stem pulling device 15. An onion harvesting device characterized by being provided with 15.