Multi-layer sectional type ratooning rice grain cleaning screen

Abstract

The invention provides a multi-layer sectional type ratooning rice grain cleaning screen. The multi-layer sectional type ratooning rice grain cleaning screen comprises a cleaning screen frame, a shaking plate, an upper-layer woven screen, a middle-layer louver screen, a tail fish scale screen and a lower-layer woven screen, wherein the shaking plate, the upper-layer woven screen, the middle-layerlouver screen, the tail fish scale screen and the lower-layer woven screen are installed on the cleaning screen frame. The front end of the upper-layer woven sieve is connected with the tail end of the shaking plate, the front end of the tail fish scale sieve is connected with the tail end of the middle-layer louver sieve, and the tail fish scale sieve is obliquely arranged upwards; the middle-layer louver screen comprises a screen piece, a plurality of first straw-shaking strip groups and a plurality of second straw-shaking strip groups, each first straw-shaking strip group comprises two first straw-shaking strips which are distributed in a splayed shape, each second straw-shaking strip group is arranged above the screen piece and comprises a plurality of second straw-shaking strips whichare parallel to one another, and the second straw-shaking strips are arranged in the front-to-back direction; according to the invention, the grain screening rate can be improved, and separated materials with high water content can be subjected to layered diffusion.

Description

technical field [0001] The invention relates to the field of agricultural harvesting equipment, in particular to a multi-layer segmented regenerated rice grain cleaning screen. Background technique [0002] Raising rice is a kind of rice variety that uses the dormant buds that survived on the rice pile after harvesting to make it mature again. Compared with traditional rice, it has many advantages. In recent years, the yield of rice has reached a bottleneck, and planting ratooning rice can effectively improve Multiple cropping index to increase rice yield. Compared with double-cropping rice, the regeneration season of ratooning rice reduces the three production links of seedling raising, plowing and transplanting, breaking through the bottleneck of the tight production season of double-cropping rice; compared with double-cropping rice, the income increases significantly. [0003] The cleaning device is an important part of the rice-wheat combine harvester, and its performan...

AI Technical Summary

Problems solved by technology

However, the moisture content of the cleaning sieve with this structure is weak, and the condition of the ratooned rice extract is special, and its high moisture content material is easy to block and accumulate on the screen surface of the fish scale sieve, which reduces the cleaning efficiency; the stem content in the extract is small, and the tail Grain-by-draft sieve cannot fully play its role, but instead causes the effective area of ​​the cleaning sieve to decrease. Therefore, the cleaning effect of traditional rice grain cleaning sieves on ratooning rice is not ideal.

Images