SU1253457A1 - Auger sowing apparatus - Google Patents

Description

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to machines with auger metering machines.

The purpose of the invention is to improve the uniformity of sowing bulk materials.

FIG. 1 schematically shows the proposed screw sowing machine, rear view; in fig. 2 - the same, side view; in fig. 3 shows section A-A in FIG. one; in fig. 4 is a view of B in FIG. 2

Screw sowing machine contains a rotary casing 1, made in the form of a cylinder with a screw 2 located inside it. The latter has a different winding, providing material flow in opposite directions from the place of its loading. The sowing windows 3 of the casing 1 are located along a helical line due to displacement from each other in the direction of rotation of the screw by an equal amount in the direction of the intake part of the screw. Under the sowing windows, a flap is installed, made in the form of a fixed plate 5 fixed on the frame 4, the edge of which is also made along a helical line, and the surface of the plate connected to the casing is cylindrical

Hozhuh 1 is pivotally connected to the lever 6 by means of the rod 7. The dosing device is made in the form of a flap 8, also pivotally connected to the lever 6 by the rail 9, and the cables 7 and 9 are connected to the lever 6 through the longitudinal hole 10. The position of the lever 6 can fix on sector 11 fixed on the bunker 12. Thus, the valve 8 ti gi 7 and 9, the lever 6 and the casing 1 are kinematically connected to each other (Fig. 4).

Sowing machine operates as follows.

The material from the hopper 12 through the flap 8 is fed throughout the casing 1 to the screw 2, by which it is distributed in opposite directions along the entire length of the casing 1, simultaneously

through the sowing windows 3 is ejected from the casing 1 and distributed across the field. The regulation of the seeding rate is carried out by moving the lever 6, while the gate 8 of the metering device is raised or lowered, and the casing 1 rotates around its longitudinal axis at an angle. The ratio of t g 7 and 9 are selected in such a way that the capacity of the dispenser is equal to the throughput

sowing ability. This condition ensures the normal operation of the screw sowing apparatus, regardless of the design parameters and operating modes of the screw itself.

To increase the coolant rate (Fig. 2), the lever 6 is moved upwards, driven by a pull 9, which raises the metering gate 8

devices. Simultaneously with the movement of the shutter, 8 tons ha 7, moving up, turns casing 1 around its longitudinal axis counterclockwise at an angle,

as a result, the throughput of the sowing windows increases - and becomes equal to the throughput of the dispenser. When lowering the lever 6 to the lowest position

the casing 1 assumes such a position $ in which the sowing windows 3 are completely covered by a shield 5.

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Editor S. Lisin

Compiled by V.Paklin Tehred L.Serdyukova

Order

Circulation 679 Subscription

VNISHI of the USSR State Committee for Inventions and Discoveries 113035, Moscow, Zh-35, 4/5 Raushsk nab.

Production and printing company, Uzhgorod, st. Project, 4

Proofreader M.Samborsk

Claims (1)

SCREW SOWING UNIT, containing a hopper with a metering device, under which a screw, enclosed / l, is installed across the movement. h 3 j253457-Al in the casing with sowing holes that are offset relative to each other in the direction of rotation of the screw by an equal amount in the direction of the intake part of the screw, and a damper, characterized in that, in order to increase the uniformity of seeding of bulk materials, the casing of the screw is made rotary in the direction of rotation of the auger and kinematically connected by a lever system with a metering device, and the shutter is made in the form of a fixed shield coupled to the outer surface of the casing, the edge of which is made along a curve passing through the axis of the symme three of the sowing windows of the casing.