JPH0219Y2 - - Google Patents

Description

[Detailed explanation of the invention] In the conventional inclined plate type potato seeding machine,
Since the seeds in the seed tray of the seed dispensing disk are dropped from the seed drop opening in front of the seed dispensing disk tilted forward and sown directly on the ground, the falling position of the seeds is high and the seeds fall to the ground. When it was done, it bounced and rolled, causing disturbances in the seeding interval. As a result, the size of the yams becomes irregular during harvesting, resulting in a decrease in commercial value.

Therefore, in order to eliminate the above-mentioned defects, the present invention provides a seed fall guidance gutter below the seed drop opening in a potato sowing machine of the inclined plate type, and in the seed fall guidance gutter, a seed fall guide gutter is installed so that the front part faces downward. A conveyor chain with rotating blades is placed between the upper large-diameter chain wheel and the lower small chain wheel, and the front piece of the conveyor chain is oriented vertically so that the leading edge of the blade is placed on the front wall of the seed fall guidance trough. Seeds falling from the seed drop opening are received by the blades of the conveying chain in the seed drop guiding gutter, and then transferred downward by the conveying chain while remaining on the blades to the seed falling guide gutter. The seeds are gently dropped vertically to the ground from the lower end close to the ground, and the falling position of the seeds is low and quiet, and the bouncing of the seeds when they fall to the ground is small, resulting in uniform sowing intervals. This invention relates to a seed fall guiding device in a potato seeding machine, which allows potatoes to be uniform in size and increase commercial value at the time of harvest.

To explain the structure of one embodiment of the present invention shown in the drawings, 1 is a machine frame of a potato seeding machine connected to the rear of a tractor, 2 is a potato seed tank, which is installed on the front part of the machine frame 1, and A seed supply gutter 3 facing rearward is connected to the lower opening.

a indicates a seed dispensing device of the inclined plate type installed on the middle part of the machine frame 1; 4 is a seed dispensing disk of the seed dispensing device a, which is installed tilted forward and downward; The cylinder 5 is loosely fitted onto the support shaft 6, and the base ends of seed trays 7, which are arranged radially in close proximity to each other and have a slightly upwardly expanding shape, are screwed 8 to the lower edge of the outer periphery. Reference numeral 9 denotes an annular outer frame provided outwardly in contact with the tip edge of the seed tray 7, whose front 1 side is curved inward and placed close to the middle other side of the seed dispensing disk 4 to form a weir. The tip of the seed supply gutter 3 faces above the weir plate 10 as a plate 10, and a seed drop opening is provided between the weir plate 10 in front of the seed feeding disk 4 and the other side edge of the outer frame 9. 11 is formed. The 12 seeds are disposed close to each other below the seed tray 7 between the feeding disk 4 and the outer frame 9, and the seed drop opening 11 is cut out, so that the seed tray 7 is placed only at the seed drop opening 11. Let it lie down. 13 is a partition plate disposed close to the rear of the seed dispensing disk 4;
Reference numeral 14 denotes an intermediate shaft suspended horizontally below the center of the seed dispensing disc 4, and this is connected to the central cylinder 5 by a bevel gear mechanism 15.

b shows a seed fall guide device provided below the seed drop port 11 of the seed feeder a, and 16 is a seed fall guide gutter formed in a U-shape with an open rear end and fixed to the machine frame 1. Reference numerals 17 and 18 designate an upper large-diameter chain wheel and a lower small-diameter chain wheel, which are installed vertically in the seed fall guide trough 16 by rotating shafts 19 and 20, respectively, and a conveying chain 22 with blades 21 is hung on them. At the same time, the front piece of the conveyance chain 22 faces vertically, while the upper part of the front wall of the seed fall guiding gutter 16 is formed into an arc shape approximately centered on the upper rotating shaft 19, and the tip of the blade 21 of the conveyance chain 22 is The edge is made to approach the front wall of the seed fall guiding trough 16.

23 is a main shaft mounted horizontally on the front part of the machine frame 1, and the main shaft 23 and the intermediate shaft 14, and the intermediate shaft 14 and the upper rotating shaft 1
9 are connected by chain transmission mechanisms 24 and 25, respectively, and the axles of wheels provided in the intermediate part of the machine frame 1 and the main shaft 23 are connected by the chain transmission mechanism, although not shown. 26 indicates a seed.

Next, its effect will be explained. When the tractor starts operating and the machine moves forward, the ground rotation of the wheels of the seeding machine causes the transmission mechanism, the main shaft 23, the transmission mechanism 24, the intermediate shaft 14, and the bevel gear mechanism 1 to flow from the axle of the wheel.
5. The disk 4 with the saucer 7 is moved from the intermediate shaft 14 to the transmission mechanism 25 at the same time as the saucer 7 slides on the guide rail 12 and rotates at an appropriate low speed in the direction of the arrow in FIG. , rotating shaft 19, chain wheel 17
Through this, the conveying chain 22 with blades 21 rotates at an appropriate low speed in the direction of the arrow in FIGS. 1 and 3.

When the machine is put into the field and the seeds 26 are put into the tank 2, the seeds 26 reach the top of the disk 4 from the lower mouth of the tank 2 through the supply gutter 3, and reach the weir plate 10.
Due to the support, the particles are deposited on the front portion of one side of the disk 4 and enter the front tray 7 on the one side of the drop opening 11.

Therefore, when the machine starts operating, the seeds 26 on the disc 4 enter the tray 7 one after another and go around from the rear to the other side, and the tray 7 separates from the guide rail 12 at the drop opening 11 and falls down. And the seeds in it 26
falls from the drop opening 11 into the front part of the drop guide gutter 16 and is caught by the blades 21 of the conveyance chain 22. Thereafter, the seeds 26 are transferred downwardly by the conveying chain 22 while remaining on the blades 21, and the blades 26 are transferred at the lower end of the drop guiding gutter 16 close to the ground.
1. Seeds are sown by falling vertically onto the ground from above.
On the other hand, the saucer 7 that has passed through the drop opening 11 joins the guide rail 12 and stands up, reaches the inside of the weir plate 10, into which the seeds 26 enter one by one, and the disk 4
The seeds 26 in the tank 2 are replenished onto the disk 4 as the seeds 26 deposited thereon sequentially roll as the disk 4 rotates.

In the present invention, the seed fall guidance device in the potato sowing machine is configured as described above, so that the seeds falling from the seed tray of the seed dispensing disk at the seed drop opening of the potato sowing machine of the inclined plate type are guided by the seed fall guidance device. The seeds fall into the gutter and are caught by the blades of the conveying chain that is driven and rotated, and are then transferred downward within the seed fall guiding gutter as the conveying chain rotates while remaining on the blades. The seeds are sown by gently falling vertically from the lower end close to the ground to the ground, and the seeds drop to the ground at a low position, and the seeds fall quietly, with little bounce when the seeds fall to the ground. There is almost no rolling of the seeds, so the sowing intervals are uniform, and the yam size is uniform at the time of harvesting, increasing the commercial value.

Furthermore, since the conveyance chain is extended between the upper large diameter chain wheel and the lower small chain wheel, the upper part of the conveyance chain is wide and the seeds falling from the seed drop opening can be well received on the conveyance chain. In addition, the height of the seed fall guiding trough and the conveyance chain can be made low so that they can be installed even in narrow spaces, which is useful in practice.

Moreover, the structure is simple, it can be easily manufactured at low cost, and its operation is smooth and accurate.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of the seeding section of a potato seeding machine according to an embodiment of the present invention, FIG. 2 is a plan view of the seed feeding section, and FIG. Figure 4 is a rear view of the same as above. 4... Seed feeding disk, 7... Seed saucer, 11
... Seed fall port, 16 ... Seed fall guiding gutter, 1
9, 20...Rotating shaft, 21...Blade, 22...Transporting body.

Claims (1)

[Scope of utility model registration request] In an inclined plate type potato seeding machine in which a seed dispensing disk with a large number of seed trays arranged side by side on the outer periphery is tilted forward and driven to rotate, and the seed tray falls down at the seed drop opening in front, the seed tray is placed below the seed drop opening. A seed fall guide gutter is provided in the seed fall guide gutter, and within the seed fall guide gutter, a transport chain with blades attached at appropriate intervals on the outer periphery of the chain is installed across a large diameter chain wheel at the top and a small chain wheel at the bottom. In addition, a seed falling guide device in which the front piece of the conveying chain is driven and rotated vertically so that the leading edge of the blade approaches the front wall of the seed falling guide gutter and the front side faces downward.