FI84686B - MATARANORDNING VID SAODDMASKIN. - Google Patents

Description

84686 # 1

Seeder feeder

The invention relates to a seed fertilizer feeder which enables the sowing of grains per unit area.

The drills aim to distribute the seeds as precisely as possible to the seedbed. These machines generally use a spur wheel or a feed roller with pins as a dosing method, which causes the driving force to be measured from a calibrated support wheel. In machines, the feed rate is based on the displacement and speed. The difficulty with these is the dosing of the desired number of seeds. With the above-mentioned devices, it has to be evaluated according to the weight of the grains. In order to specify the desired number of pieces, in addition to the device according to patent application 85 ^ 902, expensive electronic calculating devices are required. If all the input devices of the machine are equipped with such calculating devices, the price of the machine becomes very high. In addition, the calculator must control the feeder to achieve the desired number of pieces.

Beet seeders use a variety of individual seed feeders that distribute the seed evenly at the ground. Some of these devices operate under vacuum. An air stream directed to the I-hole catches the seed, which attaches to it by means of a vacuum. Due to the size and shape of the hole, only one seed adheres to it. The vacuum cleaners are located ;; with a disc rotated by a support wheel and lift the seeds from the hopper and drop them into the field. For economic reasons, such equipment cannot be used on grain drills, as the amount of grain sown in them is considerably higher than before.

The seeding machine feeding device according to the invention, made as shown in the characterizing part of the claims, sows. the desired number of seeds per unit area. This • provides the desired optimum amount of grain in the seedbed, where • * the grains have an exact distribution in the direction of travel. Such sowing is not possible with modern equipment.

2,84686

The invention will now be described in more detail with reference to the drawing, in which Fig. 1 schematically shows a vertical section through parts of an embodiment of a seed drill according to the invention, Fig. 2 shows a partial vertical section of the feeder in the width direction, Fig. 3 shows a vertical section of a small seed

In the drawing 1 there is a seed drill of a seed drill which extends over the entire width of the machine and contains the grain grains 2 to be sown. As shown, the lower part of the seed box is funnel-shaped in cross section and has a series of bottom openings 10 A pivotally mounted bottom flap 6 is located below each bottom opening 10, the curved top side of which forms an extension of the bottom wall 4. Between the rear edge of each bottom end 6 and the lower edge of the corresponding bottom wall 5, a seed roller 7 is arranged, which is made so that the circumferential suction holes 8 are located for receiving and moving the grains forward. All the seed rollers are fixedly arranged on a common, rotating shaft 9, which is a rotating tube and forms an air channel • · · *. · 18. When a vacuum is applied to the air channel 19, air M · • flows there through the cavity 16 of the holes 8 and the hole 11. The air flow captures the seeds 2 according to them, of which only one is most likely attached to each hole 8. When the seed roller 7 rotates in the direction indicated by the arrow 13 ·· »· ***, it carries the seeds up to the bottom wall 5 • · ·. ·. · past, the bottom flap 6 removes the seeds that fall to the ground through the seed tubes and Vantaa not shown.

The feed rate is adjusted by changing the rotational speed of the shaft 9.

In another embodiment, the feed rate is adjusted by moving the shaft 9 in the direction of the arrows 17, whereby part of the suction holes 8 is covered.

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Many other adjustment mechanisms by covering the suction holes 8 can be incorporated into the invention. In addition, the feed roller 7 has a Rih - ”” · 12 which can be used to feed any seeds that are not suitable for the suction hole 8. In this case, the vacuum is unnecessary and the adjustment of the feed rate • · · · ... takes place by moving the shaft 9 in the direction of the arrows 17, which is conventional in several known feeders for seed drills.

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Figure 4 shows a structural application of the feed roll which facilitates its manufacture. A suitable suction hole 8 is formed when the rings are connected so that the grooves at their edges 15a are aligned. The connection methods are not shown because in addition to gluing a wide range of applications is available g The suction hole 8 can also be made by drilling a hole in the shaft tube 911 mi • £ ---. 1 i —Tr. '. 35 i • · · »· · • · · • ·» • · · * · · 9 • ·· ·· «» ·· ··· · 1 • '- • «· - - - ···' Li« · “

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Claims (3)

1. Feeder means by which the seed (2) is guided from a seal seat (1) to a feeder roller (7) so that the seed grains get stuck in sughai (8) in them, and when the roller (7) is rotated together with its shaft (9) they follow The saw blades (2) are attached to the roller until a bottom flap (6) loosens them, characterized in that two or more rotating shaft (9) rotatably shaft (9) has been rotatably fixed to it (2). (7) and this axis is essentially a rotating tube forming an air duct (18) through which the suction shaft (8) is subjected to vacuum. = Feeder device according to claim 1, characterized in that the feeder device (7) is provided with grooves (12) for use as a conventional grooved feeder. Feeder according to claim 1, characterized in that the suction shaft (8) of the feeder roller (7) is formed by joining rings (14) of half halves (15) at their edges. - «• t • · · · · ♦ · ·« »t • · • · ··· ···· ··· · · · · · · · · · · · · · · · · · · · · · · · · 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 0 0 4 9 2 9 0