SU741823A1 - Louver sieve - Google Patents

Description

one

FIELD OF THE INVENTION The invention relates to agricultural machinery industry, in particular, to sieve combine harvesters.

The prototype of the invention is a louvered sieve, containing a frame with successively mounted and hinged plates with combs on the axles.

However, such a sieve has a low intensity of the grain heap separation process and a small transport capacity.

The purpose of the invention is to intensify the process of separation of the grain heap and increase the transport capacity of the sieve.

This is achieved by the fact that the lateral edges of the dies are on one side provided with teeth set perpendicular to the surface of the dies.

FIG. 1 shows a louvered sieve, side view; in fig. 2 - plate with a comb, top view; in fig. 3 plate with a comb, section A-A in FIG. 2

I, the aluminous sieve, contains a frame 1 with successively mounted plates 2 with dies 3. The plates 2 are hinged to the axes 4. On one side, the dies 3 are provided with teeth 5 that are perpendicular to the surface of the plate 2. To give the plates 2 rigidity on them, 10 There are grooves 6 and 7. The plates are connected to the mechanism 8 for turning the blinds.

The sting of a sesinous sieve works as follows.

Claims (1)

The sieve frame 1 is installed in a sieve mill of a grain cleaning device of a combine harvester and is driven in a reciprocating motion. The grain pile fed to the sieve is blown by inclined air flow, transported along the protrusions of the teeth 5 of the combs 3 of the plates 2, which contribute to pulling away, heaping up, increasing the porosity and increasing the adhesion coefficient of straw particles from the surface of the sieve, the position of the combs 3 of the plates 2 attached to axis x 4 is controlled by turning the mechanism 8. The proposed louvre sieve increases the sieve capacity and reduces grain losses. Claims: Louvre sieve comprising a frame with successively mounted and hinged plates with combs on the axles, characterized in that, in order to intensify the process of separating the heap of grain and to increase the transport capacity of the sieve, the side edges of the combs on one side are provided with a tooth, perpendicular to the surface of the dies. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 535E2O, cl. And O1 F 12/44, 1975 (prototype).