SU1597121A1 - Pneumatic seeding apparatus - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery industry and can be used in seeding machines. The purpose of the invention is to reduce energy consumption. The device contains a sowing disk consisting of two disks 2 and 3 mounted on the hollow shaft 1 with the formation of a vacuum chamber 4 between them. On the periphery the disk 2 adjacent to the bunker 9 has suction holes 7, coaxially with the last 8 holes 8 on the disk 3 which are covered from the outside with a fixed annular spring-loaded screen. When the disks 2 and 3 are rotated, the seeds are picked up from the hopper by the holes 7 and transferred to the sowing zone; the seeds are separated from the suction holes when the holes 7, 8 and 17 are aligned. 1C. f-ly, 4 ill.

Description

The invention relates to agricultural machinery and

2

can be used in seeding machines. The purpose of the invention is to reduce energy consumption. The device contains a sowing disk consisting of two disks 2 and 3 mounted on the hollow shaft 1 with the formation of a vacuum chamber 4 between them. On the periphery, the disk 2 adjacent to the bunker 9 has suction holes 7, coaxially with the last 8 holes 8 on the disk 3 which are covered with outdoor

, the sides of the fixed ring spring-loaded screen. During the rotation of the disks 2 and 3, the seeds are captured from the hopper by the holes 7 and transferred to the sowing zone, the separation of the seeds from the suction holes occurs when the holes 7,8 and 17 coincide. 1 Cp, f-ly, 4 Il.

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1597121

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The invention relates to agriculture. economic mechanical engineering, in particular ¹ to pneumatic sowing apparatuses, which can be ': sowing used in "seeding machines.

The purpose of the invention is to reduce energy consumption.

FIG. 1 shows a metering apparatus; FIG. 2 - section aa on: figure 1; on fig.Z - section bb in figure 2; figure 4 is a view In figure 1.

The metering device includes a hollow horizontal shaft 1 connected to the drive and a seed disk mounted on it consisting of two disks 2 and 3 connected to each other along the periphery to form a chamber 4 between them, communicated through the holes 5 in the shaft 1 and the nipple 6 s source of vacuum. The disk 2 in the peripheral part has a small thickness and here, along the end, suction holes 7 are made evenly around the circumference, communicated with the chamber 4. On disk 3 coaxially with holes 7 holes 8 are made with a diameter of

3-4 times the diameter of the holes 7, but not more than half the step of placing the latter, and the chamber 4 is made not wider than the diameter of the suction holes 7. Dtsu 2 is adjacent to the bunker 9 with quick-release fastening consisting of two forks 10 on the outer wall of which includes the pins of the lever 11, mounted on the vertical axis 12. With the help of the lever 13 installed on the axis 14, and the washer 15 to the disk 3 adjoining. A fixedly mounted annular screen 16, having an opening 17 coaxially in the discharge zone of the seed discharge and communicating with the atmosphere. The diameter of this hole 17 is equal to no more than the length of the jumpers between the holes 8, but not less than the diameter of the hole 8. A tension spring 18 is installed between the levers 11 and 13.

The device works as follows.

The vacuum source, connected to the pipe 6, sucked the air out of the chamber 4, where a vacuum is formed. Under the action of vacuum to the holes 7, seeds are sucked from the bunker 9. When the disks 2 and .3 "rotate together, the seeds are transferred from

bunker in the seeding zone, where the holes 8 are consistently aligned with the hole 17. When the holes 8 and 17 are combined, the air flow from the atmosphere directed towards the suction hole 7 rushes into the chamber 4, resulting in an overpressure above the suction hole disk 2 and enter the furrow. Thus the pneumatic ejector operates, after which the holes 8 are blown. The spring 18 is in the stretched state and tightens the levers 11 and 13, due to which the bunker 9 and the ring screen 16 constantly, tightly pressed against the disks 2 and 3. To remove the bunker for cleaning when switching to another culture, it is necessary to press it with one hand to drive, and the other take aside the lever 11, so that its pins come out of the forks 10, then lift the bunker up.

The exclusion of a source of overpressure and the system of additional ducts also allows the ups and

to churn the design and reduce the metal. capacity.

Claims (2)

31 The invention relates to agricultural machinery, in particular to pneumatic sowing machines, which may be; used in sowing machines for seeding. The purpose of the invention is to reduce energy consumption. FIG. 1 shows a seed drill, FIG. 2 - section aa on: figure 1; on fig.Z - section bb in figure 2; figure 4 is a view In figure 1. The metering device includes a hollow horizontal shaft 1 connected to the drive and a seed disk mounted on it consisting of two disks 2 and 3 connected to each other along the periphery to form between them a chamber 4 communicated through the holes 5 in the shaft 1 and pipe 6 with a vacuum source. The disk 2 in the peripheral part has a small crowd and here, along the end, suction holes 7, communicated with the camera 4, are made evenly around the disk. On disk 3, holes 8 with a diameter 3-4 times the diameter of the holes 7, but not more than half of the hague is placed last, and the chamber 4 is made not larger than the diameter of the suction holes 7. By d | mounted on a vertical th axis 12. With the help of the lever 13 mounted on the axis 14, and the washer 15 to the disk 3 adjoining. A fixedly mounted annular screen 16, having a hole 17 in the seed discharge zone, coaxially located with the hole 8 and communicated with the atmosphere. The diameter of this hole 17 is not more than the length of the bridges between the holes 8, but not less than the diameter of the hole 8. MeF | P; an extension spring 18 is set for the levers 11 and 13. The device works as follows. The vacuum source, connected to the nozzle 6, sucks the air out of the chamber 4, where vacuum is formed. Under the action of rarefaction to from. versts 7, the seeds are sucked from the bunker 9. When the disks 2 and 3 rotate together, the seeds are transferred from the bunker to the seeding zone, where the holes 8 are consistently aligned with the hole 17. When the holes 8 and 17 are aligned, the direction of the suction hole 7, the air flow from the atmosphere, as a result of which an overpressure is formed above the suction opening, under the action of which the seeds detach from the disk 2 and enter the furrow. Thus, a pneumatic ejector operates, after which the apertures 8 are blown. The spring 18 is in the stretched state and shrinks the levers 11 and 13, whereby the hopper 9 and the ring screen 16 are constantly pressed tightly against the disks 2 and 3. To remove the bunker for cleaning when changing to another culture, it is necessary to press it with one hand to the disk, and with the other hand pull the lever 11 to the side so that its pins come out of the forks 10, after which the bunker is lifted up. The elimination of a source of overpressure and an additional duct system also allows simplifying the design and reducing metal. capacity. Claim 1. Pneumatic sowing apparatus, including a sowing disc mounted on a horizontal shaft with suction holes on the front surface, communicating with a vacuum chamber, and a pneumatic seed resetter, characterized in that, to reduce energy intensity, the vacuum chamber is filled inside the sowing disc on the second end surface of the sowing disk holes are drilled coaxially with suction, and on this side a ring screen is fixedly mounted with an atmosphere communicated from A version in the seed discharge zone, coaxially placed with a suction hole. 2. The device on tt. 1, and so that the vacuum chamber is made not more than the diameter of the suction hole, and the holes on the second end: the disk surface and the annular screen are 3 - 4 diameters of the access hole, but not more jumper lengths between them. 1597121 15 YU jig