JPS60262523A - Harvester of duckweed like plant - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a harvesting machine for floating plants (hereinafter simply referred to as floating plants) such as Hotei hollyhock, and more specifically, the present invention relates to a harvesting machine for harvesting floating plants such as Hotei hollyhock (hereinafter simply referred to as floating plants), and more specifically, the present invention relates to a harvesting machine for harvesting floating plants by cutting the floating roots. It concerns harvesting machines.

Recently, this type of floating plant, especially Shichiki Hotei Aoi, has been recognized as a useful plant for water purification, feed, energy generation, etc. due to its extremely vigorous growth and relatively high protein content. , attempts have been made to cultivate it.

When cultivating such floating plants, it is best to harvest them mechanically using a special harvesting machine, which improves work efficiency.
1- is also preferable, but in general, this type of floating plant has a property of being extremely prolific and growing in clumps under high electric power, and furthermore,
On the surface of the water, each stock seems to be standing alone (I), but the rhizomes of the six plants are often intricately intertwined or integrated, so they can be divided into certain areas. It is very difficult to harvest while dividing the plants in an orderly manner.Furthermore, depending on the cultivation conditions, floating plants may grow roots in the mud, and in such cases, the roots must be pulled out or the mud attached to them removed. This makes the work even more difficult as it is necessary to bring in floating plants.

An object of the present invention is to provide a harvester that can reliably harvest such floating plants.

In order to achieve such an object, the harvesting machine of the present invention is provided with a cutting device for cutting the rhizomes of floating plants to be harvested at a position in front of a pickup device for picking up floating plants onto a loading platform L, and a cutting device for cutting the rhizomes of floating plants to be harvested. The device is characterized in that it is constructed by rotatably and height-adjustably supporting a flat cutting blade having a cutter around it, and connecting the cutting blade to a drive source.

According to the harvester of the present invention having the above configuration, after the floating plant rhizomes are cut by the cutting device, they are picked up on the loading platform by the pick-up device, so even if the plants are intertwined or integrated, they can be removed. It is possible to easily and reliably harvest the roots by cutting off the communication, and by cutting the roots, it is possible to prevent the introduction of mud, heavy metals, etc. attached to the roots. Since the cutting blade is rotated, the resistance to the cutting blade due to water is reduced, making it easier to drive, and the cutting blade can be rotated at high speed with a relatively small driving force. Compared to a system that uses reciprocating motion, the support of the cutting blade and the configuration of the power transmission system can be significantly simplified.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. In FIGS. 1 and 2, l is the body of a harvester, and the body 1 is driven by a crawler 2 as a traveling means. A driver's seat 3 and a drive unit 4 containing an engine are provided at a biased position on the aircraft body 1, and a drive unit 4 for storing harvested floating plants is provided behind the driver's seat 3. A loading platform 5 is provided, and the driver's seat 3 is located at the front of the aircraft l.
A pick-up device 6 for taking floating grass into the loading platform 5-A is disposed at a side position of the vehicle, and an operating section 3a equipped with various operating levers and the like is disposed between the driver's seat 3 and the pick-up device 6. ing.

As is clear from FIGS. 3 and 4, the pickup device 6 has a plurality of endless chains 10 provided with a large number of scrapers 11 at regular intervals, which are arranged side by side on the left and right, thereby controlling the chain conveyor. The specific structure is as follows. That is, a plurality of chain cases 12 are provided with lead-out grooves 13 for the scraping claws 11.
are arranged in parallel at regular intervals in the width direction of the machine body 1, and adjacent chain cases 12 are integrally connected by a guide plate 14 for forming a conveying surface, and in each chain case 12 there are subblocks at both ends (15a, 15b). The above-mentioned endless chain lO is stored, and a high X side force t<-18a+lθb is attached to the outer surface of the chain case 12 located at both left and right ends, making it an endless chain! 0, on the upper surface side of the pickup device 6, the scraping pawls ti of each endless chain move in a state protruding upward from the lead-out groove 13 of the chain case 12, and on the lower surface side of the pickup device 8, The raking pawl 11 is configured to move while being housed within the chain case 12. Incidentally, such attitude control of the raking claw 11 is performed by a well-known cam mechanism (not shown).

The above-mentioned pickup device 8 is arranged in a downward-sloping manner, and its rear end is pivoted! A hydraulic cylinder 18 is installed between the pick-up device 6 and the machine body 1, and the inclination angle of the hydraulic cylinder can be arbitrarily adjusted according to the water depth of the cultivation area by operating the hydraulic cylinder. It is adjustable.

] As is clear from FIG. 6, the driving force to the endless chain 10 is transmitted through the upper sprocket.
This is done by connecting the drive shaft 18 to which the components 1 and 5a are attached to the drive unit 4 via a transmission mechanism 20 consisting of gears, pulleys, belts, etc.

The pick-up device 6 also includes a weed splitting device 27 at its tip for cutting and separating floating grass into an uncut side area and a harvest side area, and a weed cutting device 27 for cutting floating grass roots located in the harvest side area. A cutting device 28 is attached.

- The weeding device 27 is equipped with a flat weeding wheel 30 formed by a plurality of cutters 32 attached at regular intervals around a thin disk 31, and the weeding wheel 30 is attached to the side of the cutting device 28. At the front, a support arm 33 connected to the pickup device 6 is rotatably supported in a vertical plane, and this weeding wheel 30 is connected to the support arm 33 and the pickup device 6.
-1 through a transmission mechanism 36 (Fig. 6) such as sprockets and gears housed in covers 34 and 35 on the outer surface of
- connected to the foot shaft 18;

This weeding device 27 can be provided on one side or both sides of the pickup device 6, and when provided on the negative side, it is provided on the left side in the direction of movement of the harvester, that is, on the uncut side, as shown.

In order to prevent splashing of muddy water and floating grass by the cutter 32, it is desirable to provide a cover over the grass cutting wheel 30.

Further, the cutting device 28 has two flat cutting blades 40a and 40b each having a plurality of cutters 42 attached at regular intervals around a circular or polygonal substrate 41. 41) A and 40b are arranged side by side on the left and right with the front downwardly inclined in front of the pickup device 6, and they are rotatably mounted on the upper surface of the chain cases 43a and 43b extending inward from the outer end of the pickup device 6. Both chain cases 43a are supported.

A space is formed between 43b through which the stubble can pass through, thereby preventing the chain case from being locked to the stubble and making the harvester unable to run.

As shown in FIG. 6, the leg side cutting blades 40a, 40b are driven via sprockets 44a, 44b housed in chain cases 43a, 43b and a chain 45 wound around them. , these cutting blades 4θa,
40b sprocket) 44b as L dividing wheel 30
It is connected to a transmission mechanism 36 to. Therefore, both cutting blades 40
The rotation directions of a and 40b are set so that they both face inward as shown by the arrows in Figure 2, and by cutting the floating plants while pulling them toward the center, the floating plants can be picked up without scattering after cutting. This facilitates removal by device B.

Incidentally, - slanting the cutting blades 40a and 40b in a front-toothed manner as described above is very effective in cutting the floating roots that slope forward as the harvester advances, reliably and at a low position. It is valid.

As can be seen from FIGS. 3 and 5, a stubble removal disk 46 is attached to the rotating shaft of each of the cutting blades 40a, 40b so as to be located at the bottom of the chain cases 43a, 43b. A resistance plate 47 is radially fixed to the lower surface of the disc 46, and the stubble cut by the cutting blades 40a, 40b is forcibly driven backward by the rotation of the disc 46. Note that a blade capable of cutting the stubble may be provided on one or both of the peripheral edge of the circle m46 and the resisting plate 47.

In addition, one of the mowing blades 40a and 40b (marked in -) is configured to forcibly feed cut floating weeds to the pick-up device 6 in order to ensure that the pick-up device 6 can remove the floating weeds more reliably. A scraping device 50 is provided for this purpose.

This scraping device 50 has a frame 51 framed in the shape of a polygonal prism (a triangular prism in the embodiment), and is attached to left and right mounting frames 52 and 52.
The frame body 51 is rotatably supported around a horizontal axis at the tip of the frame body 51.
A scraping plate 53 is attached to each rotatable frame bar 51a located at each ridge of the mounting frame 52.
, 52 are supported to rotate up and down in conjunction with the pickup device 6, and the scraping plate 53 is mounted so as to always face downward in any rotational position of the frame 51. The hanging angle is adjustable.

The frame body 51 of the scraping device 50 is driven by a transmission mechanism 54 (within a cover 52a provided along the mounting frame 52) consisting of a sprocket, a chain, and gears.
(FIG. 6) by the drive shaft 18.

In addition, the crawler 2 that supports the machine body 1 is mounted closer to the mowed side of the machine body to prevent floating grass in the uncut side area from coming into contact with it and being drawn in during harvesting work. On the side surface of the uncut side, a horizontal grass dividing rod 55 is arranged in the front-rear direction to prevent contact with floating grass, and the rear end of the grass dividing rod 55 is
It is bent toward the already cut side to the extent that it slightly touches the rear part of the crawler 2. In addition, ]=the wolfberry crawler drive is the sixth
In the figure, this is done via a transmission 5B connected to the drive unit 4.

In the figure, numeral 57 indicates a porous water sprinkling pipe for forcibly sprinkling water on the floating plants being transported by the pick-up device e-h.

When harvesting floating plants with the harvester having the above configuration, the inclination angle of the pick-up device 6 is adjusted using the hydraulic cylinder 18, and the heights of the weed splitting device 27 and cutting device 28 are set to the optimum height according to the water depth of the cultivation pond. set to something. At this time, the height of the scraping device 50 is also adjusted in conjunction with them.

Next, the harvester is driven into the cultivation pond to start harvesting floating plants. At this time, the weeding wheel 30 of the weeding device 27 separates the floating grass from the uncut side area outside the weeding wheel 30. The inner part 1 of the wheel 30 is divided into a harvest side area on the front side of the machine body 1, and the floating roots located in the harvest side area are cut by the two cutting blades 40a and 40b of the cutting device 28.

The floating plants whose rhizomes have been cut are pushed down toward the pickup device 6 by the scraping plate 53 of the scraping device 50, and are pushed down by the scraping claw II of the endless chain IO.
It is stopped and taken up onto the loading platform 5.

At this time, the floating grass in the uncut side area is removed by the weed cutting wheel 3.
The forced weeding by 0 completely cuts off the communication with the floating plants in the harvesting area, so they will not be drawn towards the harvesting area and become an obstacle to the harvesting process. The cutting of the rhizomes of the floating plants in the side area also prevents entanglement between the floating plants and roots in the mud, making it possible to harvest them very smoothly and quickly.

The driving speeds of the pickup device 6, weed cutting device 27, cutting device 28, raking device 50, etc. can be changed depending on various conditions such as the density and height of the floating grass.

The pickup device 6 may include a bar conveyor formed by endlessly connecting a number of bars equipped with protrusions for raking up floating weeds, or an endless wire mesh having protrusions for raking up floating weeds. It can also be configured with a mesh conveyor, etc., and instead of the above-mentioned crawler 2 that propels the aircraft while it is on the ground, the aircraft has buoyancy and is floated above the water to obtain propulsion force using an appropriate propulsion device. It may be configured as follows.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a side view of the same partially broken main part, Fig. 4 is a partial plan view thereof, and Fig. 5 is a cutting blade. The bottom view of FIG. 6 is an explanatory diagram of the power transmission system. 1... Airframe, 5... Loading platform, 6... Pick-up device, 28... Cutting device, 40a
, 40b...Kariblade, 42...Kanta. Patent applicant: Mechanical Systems Promotion Association (1 other person)

Claims (1)

[Scope of Claims] 1. An aircraft body equipped with a traveling means is provided with a pickup device and a loading platform, and floating plants are picked up by the pickup device described in 1- above. A cutting device for cutting the rhizomes of floating plants to be harvested is installed in the front position of the pick-up device. A harvester for floating plants, characterized in that the cutting blade is supported in an adjustable manner, and the cutting blade is connected to a drive source. 2. A patent claim characterized in that the cutting blade is supported in a forward tilted state. A harvester for floating plants according to item 1. 3. A patent claim in which two cutting blades are arranged side by side on the left and right, and the rotation directions of both cutting blades are set inward from each other is a feature of !1jf. A floating plant harvesting machine according to item 1 or 2.