| 摘要 |
FIELD: agricultural engineering, in particular, grain sampling devices used in the process of grain drying in vented hoppers. SUBSTANCE: grain sampler has cylindrical casing with windows, and sample receivers positioned in windows and connected with drive mechanism. Sample receivers are formed as valves, each made in the from of part of casing cylindrical surface pivotally connected to casing. This part has lever rigidly attached to its inner surface and spring-loaded to casing. Drive mechanism for each sample receiver is made in the form of auxiliary lever positioned in casing lower part and connected through spring and cable to valve lever. Casing is provided with arm allowing it to be rotated. By turning casing about its axis and by moving respective lever, required valve is opened and grain is delivered inside casing and discharged for analysis. EFFECT: simplified grain sampling and improved representativeness. 4 dwg
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