JPH0125531Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a potato seeding machine of the inclined plate type, in which the seeds that fall from the seed drop opening in front of the seed dispensing disk tilted forward are conveyed. This relates to a seed fall guide device that allows seeds to fall quietly to the ground.

(Prior Art) In this type of conventional potato seeding machine, the seed falling from the seed tray of the seed dispensing disk is directly dropped onto the ground through the seed drop opening in front of the seed dispensing disk tilted forward. The seeds are being sown.

(Problems to be Solved by the Invention) In the conventional seed dropping method in the potato seeding machine described above, the seed falls at a high position, so when the seed falls to the ground, it bounces and rolls, causing disturbances in the sowing interval. Therefore, there is a problem in that the size of the yam becomes irregular during harvesting, reducing the commercial value.

(Means for Solving the Problems) Therefore, in order to solve the above problems without damaging the yam, this invention is based on the front side of the seed dispensing disk 2, which has a large number of seed trays 1 arranged side by side on the outer periphery. A seed fall guide gutter 4 is provided below the seed fall opening 3, and within the seed fall guide gutter 4, blades 6 are attached at appropriate intervals on the outer periphery of a chain 5, and a rubber belt 7 is loosely connected between the bases of the blades 6. A stretched conveyor chain 8 is placed across the upper and lower chain wheels 9 and 10, and the tip edge of the blade 6 is brought close to the front wall of the seed fall guide trough 4 and driven and rotated so that the front side faces downward. .

(Function) The seeds in the many saucers 1 of the rotating disk 2 are
Sequentially from the drop port 3 to the drop guide gutter 4
falls into the front part of the rubber belt 7 and is caught by the blade 6. Thereafter, the seeds are transferred downward by the conveying chain 8 while remaining on the blades 6, and fall from the top of the blades 6 to the ground at the lower end of the drop guiding trough 4 close to the ground, where they are sown.

(Embodiment) The drawing shows a sowing section of a potato sowing machine according to an embodiment of this invention, and its structure will be explained with reference to the drawing. 11 is a machine frame of the potato sowing machine connected to the rear of a tractor, and 12 is a potato sowing part. In the seed tank, machine frame 1
The seed supply gutter 13 is attached to the front part of the seed feeder 1, and a seed supply gutter 13 facing rearward is connected to the lower opening of the seed feeder.

a shows an inclined plate type seed dispensing device provided on the middle part of the machine frame 11, and the seed dispensing disk 2 of the seed dispensing device a is installed to be inclined forward and downward,
A central cylinder 14 fixed to the lower surface of the central cylinder 14 is loosely fitted onto a support shaft 15, and the base ends of seed trays 1, which are arranged radially in close proximity to each other and have a slightly upwardly expanding shape, are hinged to the lower edge of the outer periphery. . Reference numeral 17 denotes an annular outer frame provided outwardly close to the tip edge of the seed tray 1, with one front side thereof curved inward and arranged close to the middle other side of the seed dispensing disk 2. The weir plate 1 as the weir plate 18
The tip of the seed supply gutter 13 faces above the inside of the 8, while the weir plate 18 and the outer frame 1 in front of the seed feeding disk 2
Seed drop opening 3 is formed between the other side edge of 7. 1
Reference numeral 9 denotes an annular guide rail arranged close to the bottom of the seed tray 1 between the seed dispensing disk 2 and the outer frame 17. Three seed drop openings of the guide rail 19 are cut out, and only the seed drop opening 3 is provided. Make sure that the seed tray 1 is laid down. 20 is a partition plate disposed close to the upper rear part of the seed dispensing disk 2, and 21 is an intermediate shaft suspended horizontally below the center of the seed dispensing disk 2, which is connected to the center cylinder 14 by a bevel gear mechanism 22.

b shows a seed fall guide device installed below the seed fall port 3 of the seed feeding device a, and the seed fall guide gutter 4 is formed into a U-shape with an open rear end and is connected to the machine frame 1.
1, and the upper edge of the seed fall guiding gutter 4 is expanded. Reference numerals 23 and 24 indicate upper and lower rotating shafts that are parallel to each other in the seed fall guiding gutter 4. In the seed falling guiding gutter 4, the upper rotating shaft 23 has a large diameter chain wheel 9, and the lower rotating shaft 24 has a small diameter chain wheel. Attach 10 to each. Thus, the conveyance chain 8 has flat plates 25 fixed to the outside of the chain 5 at appropriate intervals, an endless rubber belt 7 disposed outside of the flat plates 25, and shaped blades 6 placed on every other flat plate 25. Then, the flat plate 25, the rubber belt 7, and the proximal bent piece of the blade 6 are tightened and fixed with bolts, and the rubber belt 7 is loosely stretched between adjacent blades 6 so as to extend outward in a convex arc shape. This constitutes chain 8 . Then, the conveyance chain 8 is passed around the chain wheels 9 and 10, and the front side of the conveyance chain 8 is oriented vertically, while the upper part of the front wall of the seed fall guiding trough 4 is centered approximately on the upper rotation axis 23. It is formed into an arc shape so that the tip edge of the blade 6 of the conveying chain 8 approaches the front wall of the seed fall guiding trough 4.

Reference numeral 26 denotes a main shaft suspended horizontally at the front of the machine frame 11, and the main shaft 26 and the intermediate shaft 21, and the intermediate shaft 21 and the upper rotating shaft 23 are connected by chain transmission mechanisms 27 and 28, respectively. The axle of the wheel provided at the intermediate portion of the wheel 11 and the main shaft 26 are linked by a chain transmission mechanism.

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 26, the transmission mechanism 27, the intermediate shaft 21, and the bevel gear mechanism 2 to flow from the axle of the wheel.
2. The disk 2 with the saucer 1 is moved through the center cylinder 14, and the saucer 1 slides on the guide rail 19 and rotates at an appropriate low speed in the direction of the arrow in FIG. , rotating shaft 23, chain wheel 9
Then, the conveying chain 8 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 are put into the tank 12, the seeds go from the lower mouth of the tank 12 through the supply gutter 13 to the top of the disk 2, and reach the weir plate 1.
8, the particles are deposited on the front portion of one side of the disk 2 and enter the front tray 1 on one side of the drop port 3.

Therefore, when the machine starts operating, the seeds A on the disk 2 enter the tray 1 one after another and go around from the rear to the other side, and at the drop opening 3, the tray 1 separates from the guide rail 19 and falls down. Then, the seeds in the saucer 1 fall from the drop opening 3 into the front part of the fall guiding gutter 4,
It hits the rubber belt 7 of the conveyance chain 8 and is received by the vane 6 .

Thereafter, the seeds are transferred downward by the conveyor chain 8 while remaining on the blade 6, and are transferred downward to the drop guiding gutter 4.
At the lower end close to the ground, the seeds fall onto the ground from above the blades 6 and are sown. On the other hand, the tray 1 that has passed through the drop opening 3 joins the guide rail 19 and stands up, reaches the weir plate 18 and enters there one by one. The seeds A in the tank 12 are replenished onto the disk 2 as the seeds A sequentially roll.

(Effect of idea) This invention has the following remarkable effects.

(1) Seeds that fall from the seed tray of the seed dispensing disk at the seed drop opening of the inclined plate potato seeding machine fall into the seed fall guide gutter and are caught by the blades of the conveying chain that rotates. ,
Thereafter, the seeds remain on the blades and are transported downward through the seed fall guiding gutter as the conveying chain rotates, and the seeds are sown by falling gently onto the ground from the lower end of the seed fall guiding gutter close to the ground. In addition to the low falling position to the ground, the seeds fall quietly, and there is little bounce when the seeds fall to the ground, and there is almost no rolling of the seeds, making the sowing interval uniform and reducing the size of the yam at the time of harvest. It is possible to increase the value of the product by having all the necessary features.

(2) A rubber belt was loosely stretched between the adjacent blades on the outside of the conveying chain, and the chain was covered by the rubber belt, so that the seeds falling from the seed drop opening into the seed drop guide gutter would fall onto the rubber belt. In addition, the rubber belt acts as a buffer and prevents the potatoes on the conveyor chain from being caught between the links of the chain, thereby preventing damage to the potatoes.

(3) Since the chain of the conveyor chain is covered with a rubber belt, soil does not stick to the chain or chain wheel, allowing the conveyor chain to rotate smoothly.

(4) The structure is simple and can be manufactured easily and inexpensively.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional side view of the seeding section of a potato seeding machine according to an embodiment of the invention, FIG. 2 is a plan view of the seed feeding section, and FIG. 3 is an enlarged side sectional view of the seed fall guiding section. Figure 4 is a rear view of the same as above. 1... Seed saucer, 2... Seed feeding disk, 3...
...Seed drop opening, 4...Seed fall guide gutter, 5...Chain, 6...Blade, 7...Rubber belt, 8 ...Transport chain, 9, 10...Chain wheel.

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 installed in the seed fall guide gutter, and inside the seed fall guide gutter, a conveyor chain with blades attached at appropriate intervals on the outer circumference of the chain and a rubber belt loosely stretched between the bases of the blades is hung on the upper and lower chain wheels. A seed fall guide device is provided in which the tip edge of the blade approaches the front wall of the seed fall guide gutter and is driven and rotated so that the front side faces downward.