JPS605774Y2 - Stem and leaf cutting machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to a foliage cutting machine that cuts the foliage of crops while they are still planted in the field, and improves the raking performance of the foliage with the raking brush, thereby preventing errors in cutting the foliage. The purpose is to

When harvesting crops such as onions, the treatment of their stems and leaves becomes a problem.

There are two ways to dispose of the stems and leaves: one is to cut the crops after digging, and the other is to cut only the stems and leaves while the crops are still planted in the field.

If the latter processing method is adopted, the harvesting machine can be greatly simplified, and its economic advantages are extremely large.

By the way, in this case, in order to cut the stems and leaves that are lying down in the field, it is necessary to raise the stems and leaves upright, so a scraping brush and a divider are placed in front of the cutting tool, but the conventional scraping The upper brushes were provided in pairs on the left and right so that they rotated in the raking direction around an axis parallel to the direction of travel.
There was a drawback that fallen stems and leaves could not be raked up sufficiently, resulting in poor raking efficiency.

This invention solves these problems,
Its features include a divider that raises and guides crop leaves, a raking brush that rotates in the direction of travel and scrapes up crop leaves along the divider, and a cutting that cuts the crop leaves raised by the divider. It is equipped with the following ingredients.

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. The drawings illustrate a two-row foliage cutting machine, and in FIGS. The movable body 1 has a pulley 2, a running wheel 3, etc., and a machine frame 4 is detachably attached to the front side of the movable body 1 via a hitch 5.

The machine frame 4 is composed of a horizontal member 6, a pair of left and right support arms 7 extending forward from both ends of the horizontal member 6, an intermediate connecting member 8 that connects the intermediate portions of the support arms 7, and the like. This machine frame 4 includes a cutting tool 9, a divider 10, and a scraping brush 1.
1. Equipped with 12 gauge wheels.

As shown in FIG.
3, and two cutting tools 9 are arranged on the left and right according to the distance between the rows of crops A such as onions.
is fixed to the lower end of each rotating shaft 14 that rotates around the vertical axis 6.

Each rotating shaft 14 is supported by the horizontal member 6 via a bearing 15 and a bearing sleeve 16, and is operatively connected to a bevel gear mechanism in a gear pock 19 via a connecting shaft 17, a transmission shaft 18, and the like.

Each gear box 19 is attached to a pedestal 20 supported by the horizontal member 6 at a position above the bearing cylinder 16.

Each bevel gear mechanism is connected to each other by an interlocking shaft 21, and the interlocking shaft 21 has an input pulley 22 at its intermediate portion, and is interlocked and connected to the power take-off pulley 2 of the mobile body 1 via a winding transmission mechanism 23.

The connecting shaft 17 is protected from the front by a protective cover 24 having a U-shaped cross section.

A cylindrical anti-wrapping tool 25 with a large diameter at the bottom is concentrically provided on the upper surface of the cutting machine 9, and the upper end opening 26 of the sleeve 26 has a small gap between the lower end of the bearing sleeve 26 and the lower end of the sleeve 26. It is loosely fitted with .

The dividers 10 are arranged at both left and right ends and at the center, and each divider 10 has a vertical mounting rod 27 and a stem leaf that is bent forward and downward from the lower end of the mounting rod 27. A cutting tool 9 cuts the leaves B of the crop A lifted by the lifting part 28 , the stabilizer 29 for regulating the injection depth attached near the front end of the leaf lifting part 28 , and the leaf lifting part 28 .
The mounting rod portion 27 is provided with an arc-shaped guide rod portion 30 that guides the side, and the mounting rod portion 27 is attached to the holding cylinder 3 attached to the intermediate connecting member 8 etc.
It is inserted and fixed in 1 so that it can be adjusted vertically.

In the case of a double-end divider, the guide rod portions 30 are provided only on the inner side, but it goes without saying that in the case of a center portion, the guide rod portions 30 are provided on both left and right sides.

As shown in FIGS. 3 and 4, the scraping brush 11 has a mounting piece 33 and a support member 34 between a pair of left and right endless chains 32.
It is made up of a large number of band-shaped brushes 35 that are horizontally suspended through the belt-shaped brushes, and each of the band-shaped brushes 35 is made of a suitable elastic material such as synthetic resin.

Each endless chain 32 is rotatably suspended between a driving sprocket 38 and a driven sprocket 39, which are fixed to both left and right ends of a driving shaft 36 and a driven shaft 37, and the driving shaft 36 is The scraping brush 11 is arranged above the rear part of the driven shaft 37 along the leaf holding part 28 of the divider 10, and is rotatably supported by a bearing plate 41 at the front end of the support arm 7 via a bearing part 40. ing.

Furthermore, one end of the drive shaft 36 is operatively connected to the running wheel 3 via a winding transmission mechanism 42 such as a chain.

The driven shaft 37 is inserted through the bearing plate 41 through the elongated hole 43 and rotatably supported via a bearing fitting 44, and the bearing fitting 44 is supported by the bearing plate 41 via a tension adjustment mechanism 45. It is attached to be able to swing freely around a shaft 46.

The gauge wheels 12 are located in front of each running wheel 3 of the mobile body 1, and there are a pair of left and right gauge wheels 12, and each gauge wheel 12 is attached to each support arm 7 via a column 47, a support tube 48, etc. so as to be vertically adjustable. There is.

Next, the action will be explained.

When cutting the stems and leaves B of a crop A such as an onion, the mobile body 1 moves forward while driving each part with the running wheels 3 and the gauge wheels 12 positioned in the grooves between the furrows.

That is, each cutting tool 9 is driven around the rotating shaft 14 by the power from the power take-off pulley 2 of the mobile body 1, and the scraping brush 11 is moved in the traveling direction (arrow) in synchronization with the traveling speed by the power from the running wheel 3. The entire foliage cutting machine is driven by the moving machine body 1 while being driven as shown in FIG.

Then, the front end of the stem and leaf holding part 28 of the divider 10 moves with it stuck in the soil, so that the crop A lying prone in the field is moved.
While raising the leaves B sequentially from both sides, the leaves are guided toward the rear center along the slope by the leaf holding part 28 and the guide rod part 30.

On the other hand, above the divider 10, a scraping brush 11 is in an elliptical motion in the direction of the arrow in synchronization with the traveling speed.
The fallen stems and leaves B are removed by the divider 10 by this scraping brush 11.
The stems and leaves B are forcibly raised backwards along the slope of the stem and leaf holding part 28, and therefore, in combination with the function of the divider 10, the leaves B can be reliably lifted and its posture is suitable for cutting. The condition can be corrected.

Further, the divider 10 has a stabilizer 29, and this stabilizer 29
The amount of injection into the field from the front end of the foliage holding part 28 is regulated at the position where the divider 10 contacts the surface of the field.
It is possible to maintain a constant state at all times without spraying too much into the field, and to reliably capture the stems and leaves B.

In this way, the divider 10 and the scraping brush 11 eliminate the drooping of the leaves B and correct the posture by bringing them closer to the center. Next, by rotating the cutting tool 9, the leaves B are cut from near the neck of the crop A. The cut stems and leaves B are discharged to the outside by a cylindrical wrapping prevention device 25.

In the above embodiment, the scraping brush 11 is configured to move in an elliptical motion, and the section for holding the foliage B between the raking brush 11 and the foliage holding part 28 of the divider 10 is long, but this is limited to kneading. For example, as shown in FIG.
It is also possible to construct a uniaxial type in which a plurality of band-shaped brushes 51 are provided in the circumferential direction on the outer periphery of the brush.

Further, as shown in FIG. 6, rotating disks 52 and 53 are fixed to each of the interlocking shaft 21 and the horizontal shaft 50, and both rotating disks 52.
A pair of left and right movable rings 54 are pivoted between 53 and 55, 56L.
It is also possible to provide the movable link 54 with the scraping brush 11 and rotate the entire scraping brush 11 in parallel in the direction of the arrow.

As shown in FIGS. 7 and 8, the wrapping prevention device 25 is made of a sheet metal material and is fixed to the bearing cylinder 16 side, and its lower opening edge 25a
may be placed close to the upper surface of the cutting tool 9.

In addition, when the wrapping prevention tool 25 is formed into a relatively flat shape as shown in the figure, a removal member 55 having an arcuate shape on the outside is provided on the upper surface of the outer periphery of the cutting tool 9 to remove the cut stems, leaves, etc. It is sufficient if the configuration is such that the removal member 55 removes it outward.

In this invention, the raking brush is rotated in the direction of movement, and the raking brush is used to rak up the stems and leaves of the crop along the divider, so even the foliage that has fallen down on the field can be captured reliably. The blade can be raked up while being sent rearward without any difficulty, so the raking performance is significantly improved, the posture of the stems and leaves can be reliably aligned, and cutting errors can be prevented.

In addition, since the raking brush rotates in the direction of movement, that is, around the horizontal axis, it is easier to transmit power compared to a brush that rotates laterally in the front-rear direction, greatly simplifying the structure of the power system, etc. can.

[Brief explanation of the drawing]

Fig. 1 is an overall side view showing one embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a cutaway side view of the main parts, and Fig. 4 is an arrow taken along the line X-X in Fig. 3. 5 and 6 are side views showing other embodiments of the rake section, FIG. 7 is a sectional view showing a modified example of the cutting tool support, and FIG. 8 is a partial plan view of the cutting tool. be. 1...Moving aircraft, 4...Aircraft frame, 9...
... Cutting tool, 10 ... Divider, 11 ...
...Scraping brush, 12 ...Gauge wheel, 28
... Stem and leaf holding part, A... Crop, B...
...Stems and leaves.

Claims (1)

[Scope of utility model registration request] The present invention is equipped with a divider that raises and guides the foliage of the crop, a raking brush that rotates in the direction of travel to scrape up the foliage of the crop along the divider, and a cutting tool that cuts the foliage raised by the divider. Features: Stem and leaf cutting machine.