SU1109084A2 - Grain harvester - Google Patents

Abstract

GRAIN COMBINE on auth. No. 869632, which differs from the fact that, with a grain loss reduction circuit, the openings of the additional sieve are made in the form of longitudinal slits, and the distance from the axis of rotation of each papillary drum to the additional. the sieve is smaller than the radius of the circle on which the ends of the drum fingers are located. (P QD About CX 4

Description

The invention relates to agricultural machinery and is intended for harvesting crops.

By main auto No. 869632 known combine harvester, including an inclined chamber, a threshing machine with a straw walker, made in the form of an agitator, containing a number of finger drums and a number of jackbeaters installed above them, an additional sieve, a device for cleaning grain from small impurities and a hopper [1J.

A disadvantage of the known combine is that when tedding the bread mixture there is a separation of the ears from the stems, which are then carried out from the combine and when laying the mass in a fiber, they fall to the ground and become irreversible losses.

The purpose of the invention is the reduction of grain losses.

This goal is achieved by the fact that in the combine harvester the openings of the additional sieve are made in the form of longitudinal slots, and the distance from the axis of rotation of each finger drum to the additional sieve is less than the radius of the circle on which the ends of the fingers of the drum are located.

In FIG. 1 shows a diagram of a combine harvester; in FIG. 2 shows the arrangement of the fingers of the drum relative to the additional sieve.

The combine harvester includes a header 1 with a reel 2, a pick-up 3 installed in front of the header, a screw 4, a floating conveyor 5, installed 1109084 2 in the inclined chamber 6, a pick-up beater 7, an agitator 8, containing a number of finger-type drums 9 with slopes 10 and a number of jack-off beaters 11 , an additional sieve 12, installed under the agitator 8, a device for cleaning grain from small impurities, including two sieves 13 and a fan 14, installed under the sieve 12, an additional fan, which consists of 15 Q and a hopper 16, it has two compartments.

the mass from the roll to the Inclined chamber conveyor 5 transk receiving bit, on the agitator 8.

Combine harvester operates as follows.

Cut off by reaper 1 or picked up by a pick-up, it is fed by ru screw 6. Floating port port mass of ru 7, feeding

Moreover, the speed of each subsequent finger drum 9 is greater than the speed of the previous one. The extracted grain and ragged ears pass through the longitudinal slots of the sieve 12, and then they are transferred to the sieve 13 and from there they are transported to the hopper 16. When the drums 9 rotate, their fingers enter the oblong slots of the sieve 12 and clear them of stems and ears.

The bread mass passing through the agitator is always blown with an air stream from the additional fan 15. The mass leaves the harvester and is placed again on the stubble for drying. After drying, the masses of the rolls are selected by the combine and threshed.

Fig. 2

Claims (1)

Combine harvester for avt.sv. No. 869632, characterized in that, in order to reduce grain losses, the openings of the additional sieve are made in the form of longitudinal slots, and the distance from the axis of rotation of each finger drum to the additional sieve is less than the radius of the circle on which • the ends of the fingers of the drum are located.