SU622436A1 - Sowing apparatus - Google Patents

Description

one

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular, for precision sowing of maize and other row crops with horizontal disc machines, designed for operation at higher speeds.

The sowing devices are known, including a sowing disk having a phonical part along the periphery, into which seeds are fed from the bunker of river j before filling the cells.

The main disadvantage of such devices is an increase in seed damage at elevated levels. The speed of variation is due to the unevenness of the size of corn seeds. in length, width and thickness. Another disadvantage is the complication of the disc manufacturing technology due to the need to bore a narrow groove for installing the ejector.

The closest to the invention in technical essence and the achieved result is a sowing apparatus, including a seed bin, a housing with

a disk and a disk and a horizontal sowing unit with cells 23.. The stationary wall K5 of the housings of such an apparatus, acting as one of the walls of the cells, stops the seeds from moving when the disk is rotated, increasing the relative speed between the disk and the seeds, and therefore the probability of filling the cells decreases. Another disadvantage of this apparatus is that the side walls of the disc cells are inclined in the vertical plane, which does not allow to manufacture these discs in the most economical way by molding with molding.

The purpose of the invention is to improve the quality of seeding at normal and elevated speeds.

This is achieved by the fact that the cellular part of the disk is made protruding like the rest of the disk, and the side walls of the cells are arranged vertically with an inclination to the radius of the disk in the direction of movement at an angle smaller than the double angle of friction of the seeds on the disk. FIG. 1 schematically shows a sowing unit; in fig. 2 - part of a disk with a cell; in fig. 3 shows an embodiment of a disk cell. The sowing machine includes a housing 1, to which bottom 2 is attached. Bunker 3 is also attached to housing 1. There is a disk 4 between the housing 1 and the bottom 2, the mesh 5 of which is made protruding from the rest of the flatness of the disk 4, thanks to which the disk 6 it is open not only from the outside, from the side and from above, but also from the inside. The side walls 7 of the cell 6 are sloped in the direction of rotation of the disk 4, creating an angle with the walls 7 and the radii of the disk 4. The base 8 of the cell 6 is sloped outside downwards. The angle of inclination of the side walls 7 is chosen to be less than the double angle of friction of the seeds on the disk from the condition that the seeds did not latch when they were transported to the point of release. Otherwise, the seeds may be damaged. For rounded seeds of corn and other tilled couples, an embodiment of cell 6 of disk 4 with an open bottom part is proposed (Fig. 3). In this case, the diameter of the flat horizontal part of the disk 4 is equal to the inner diameter of its 4acTBi and the cell 6 is open to the bottom. Some of the disk 4 is blocked to the lumpy 9 to accommodate the exhaust okkg Yu. The device works as follows: At normal speeds of the V1ra1ceia disk 4, the seeds are located in the hopper 3 above the cellular part 5, easily Bonaaaierr in the cells 6, slipped in the front wall 7, sloped at a certain angle in the course of the disk rotation, n is transported to the outflow window 10, where, due to the inclined walls 7 and the beveled base 8, as well as under the influence of the ejector, it is easy to slip and fall out into the outlet window 10, and then into the funnel of the wire. When the cell 6 is open at the bottom of that part 5, the seeds are dropped into the discharge window 1O and further into this wire under the influence of Gravity, the forces under the inclined walls are influenced by the ejector. At higher (over 3) rotates of the disk 4, the seeds from the hopper 3 in cells 6 are affected by gravity and centrifugal forces, which increase sharply with increasing speed of rotation of the disk 4. Seeds are transported and ejected as described above. . Since Jacques at higher speeds, the impact of the ejector on the seeds is insignificant, here the same centrifugal forces and forces acting on the lateral tilting of the wall 7 play a big role, throwing seeds from cells 6 into the exhaust window 10. Thus, the proposed constructive implementation of the disc ensures good quality filling the cells with seeds at normal speeds (up to 2.5) under the force of gravity increased / 4 / A K. chny (over 2.5) under the action of centrifugal forces. The inclined front wall 7 6 facilitates the entry of seeds into the hole, and the inclined rear wall 7 prevents the seeds from leaving the cell in the process of transporting it to the outflow window 10. The proposed apparatus solves the problem of high-quality seeding at normal and elevated work speeds, In this case, the design of the apparatus is unified with the production apparatus, which makes it easy to use the given offer on the production stages., ..,. - The proposed device is technologically simple in mass production. F o rumula and 3 o bre in the Sowing apparatus, in the KupyuchushM bunker for the seed, “the bottom of the bottom and to and 1 of & and horizontal sowing disc c, p tl and. In order to improve the quality of sowing of seeds at low and high speeds, the disk part of the disk is protruding above the rest of the disk, and the side walls of the cells are arranged vertically with an inclination to the radius of the disk. the direction of movement at an angle smaller than the double friction angle of the seeds on the disk. Sources of information taken into account in the examination: 1. USSR author's certificate number 324971, cl. And O1 C 7 / O4, 1971. 2. Author's testimony of the USSR NO 298276, cl. A 01 C 7/16, 1969.

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