| 摘要 |
FIELD: agricultural production industry. SUBSTANCE: this relates to small-size incubators which can be used at farms and subsidiary small-holdings. Egg turning mechanism in incubator is made in the form of hermetic cylinder rigidly connected with trough for eggs. Located inside cylinder are liquid and piston which is movable along cylinder axis and is provided with seals and bypass valves. Installed in end zones of cylinder are heating elements which alternately heat liquid. There are limiters of piston axial movement. Heating elements are connected with control circuit. Heating elements arranged inside cylinder are located asymmetrically relative to its lateral profile. Each end part of cylinder has pair of contacts, and each contact of pair is connected with its output of heating element. Installed on body of this device are contact blocks, and each of them periodically interacts with its contact pair to connect it to control circuit. EFFECT: high efficiency. |
