SU1247109A1 - Pneumatic screen separator - Google Patents

Description

I

The invention relates to agricultural machinery industry and can be used in seed cleaning machines.

The purpose of the invention is to increase productivity due to the directional oscillatory movement of the C block.

The drawing shows a pneumatic separator, general view.

A pneumatic grinder separator contains a bunker 1 for seeds, a block of sieves 2 installed in a common case, an air chamber. 3, receivers 4 of separation products, valves 5 for output of Prokhorov fractions, made of elas

The material, the pallet 6, and the crank-and-pinch mechanism 7 with two cranks for driving the pallet and the sieve block.

The separator works as follows.

The source material (seeds) from the hopper 1 is fed to the beginning of the sieve 2. Under the action of the oscillatory motion

Compiled by Yu.Pravotorov Editor E.Kopcha Tekhred 0.GortvaiKorrektor A..Zimokosov

Order 4050/11 Circulation 565 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

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

sieve and pulsating air flow, carried out by a crank drive mechanism, the seeds are sorted into fractions and transported to receivers 4. During the lower part of the air chamber of the pallet 6 upwards, an excessive pressure is created in the air chamber, valves 5 open and fractions outputs to receivers. When the pallet travels down in the air chamber, a vacuum is created, and the valves close. The pulsating air flow generated in the air chamber facilitates the passage of small fractions through the sieve holes, thereby increasing the quality of cleaning. Depending on the type of culture being cleaned, the presence of weeds and their type, the mutual position of the pallet and the sieve block is carried out by changing the angle. The relative position of the cranks.

The execution of a block of screens with a drive ensures the movement of the mixture being cleaned through the screens and the withdrawal of finished fractions.

Claims (4)

ί. ANNOUNCERED SEPARATOR, including a block of screens installed in a common housing one above the other, an air chamber located under the block of screens, the lower part of which is made deformable and connected to a reciprocating drive in the form of a crank mechanism, characterized in that. that, in order to increase productivity due to the directional oscillatory motion of the sieve unit, the reciprocating motion drive is kinematically connected to the housing, and in the latter discharge windows for over-sizing products are made. 2. The separator according to π.1, characterized in that the reciprocating drive is kinematically connected with the housing and the lower part of the air chamber with the possibility of oscillations in antiphase. 3. The separator according to claim 2, characterized in that the crank mechanism is made with two S cranks with the possibility of changing the angle between them. 4. The separator according to claim 1, wherein the valves are equipped with valves of elastic material in the discharge windows. I 247 109