SU145407A1 - Threshing Separator - Google Patents

Description

Threshing devices for threshing and separation of pre-crushed grain heap using a threshing device in the form of a drum and a concave, platform straw, sieves and a fan are known.

However, these devices do not provide the required grain purity, which reduces the productivity of machines for its further (post-harvest) processing.

In the proposed grind-separator, this disadvantage is established by applying suction of the non-grain part of the pile above the separator, their working bodies, which ensures unloading and maintenance of the bread mass over the straw walker in a semi-weighted state and, consequently, improving the quality of the thresher operation at high feed rates.

The drawing shows the circuit of the thresher-separator, side view.

The threshing separator consists of a receiving conveyor with a pod 1, a receiving beater 2, a knife drum 3, a threshing drum 4, a concave 5, an otboyny beater 6, a page board 7, a cleaning fan 8, a grain auger 9, an upper and lower sieve mills W and //, platform straw walker 12, chassis, trailer cart 14, exhauster 15 and exhauster 16 with a suction system of the non-grain part of the pile.

The non-cornseed suction system consists of separate confusors (not shown in the diagram) in the form of truncated cones, in which the lower rectangular base forms a slit for the passage of straw across the entire width of the thresher, and the upper round opening serves to connect the exhauster pipeline.

During operation, the swath roll is picked up by the receiving conveyor with pick-up 1 and the receiving beater 2 is fed to the knife drum 3, crushed and sent to the threshing and separating .N9 1454072

4 with iodobarabany 5. Selected by the threshing device grain on the page board 7 falls on the top 10, and then on the bottom 11 sieve mills. The passage through the chamber formed by the upper and lower sieve mills, the grain is exposed to the air stream generated by the fan 8, the separation of the tank and other small impurities. The cleaned grain enters the grain auger 9, which is carried outside the thresher. The rest of the mass, not allocated by the threshing device, when leaving it falls on the bumper beater 6, which, preventing the straw from pulling the straw, throws it onto the straw walker from 12. At the straw walker cascades, the grain is further separated from the straw and harvester, the latter being exhausted 15 transported to trailer cart 14.

To capture small straw impurities and maintain the grain mass in a semi-weighted state, a suction system was installed in the receiving and breakaway zone and above the straw walker, which includes an exhauster 16 and a pipeline with separate confusors.

Depending on the needs of the farms, both joint and separate collection of straw and chaff can be carried out.

The proposed thresher-separator can be used both for field work in the scheme of self-propelled or trailed combines, and for work at the hospital. During steady-state operation, the receiving conveyor with pick-up 7, receiving beater 2 and knife drum 3 are excluded from the thresher circuit, and the pre-ground bread mass is fed to the threshing machine using a special feed unit. St. No. 137719.

As for the rest, the technological process and the principle of operation of the netting machine correspond to the process performed during operation in accordance with the left conditions.

Subject invention

A threshing separator consisting of a receiving conveyor, a threshing device in the form of a drum and a concave, a platform straw walker, selects and a fan, characterized in that. in order to discharge straw walkers and sieves from small straw particles, an exhauster of conventional construction is installed above the drum.