LEBEDEV ANATOLIJ TIMOFEEVICH,Лебедев Анатолий Тимофеевич,MARIN NIKOLAJ ALEKSANDROVICH,Марьин Николай Александрович,KAA ALEKSEJ VLADIMIROVICH,Каа Алексей Владимирович,MAKARENKO DMITRIJ IVANOVICH,Макаре
申请号：
RU2012101155/13
公开号：
RU0002485749C1
申请日:
2012.01.11
申请国别(地区):
RU
年份:
2013
代理人:
摘要：
FIELD: agriculture.SUBSTANCE: sealing gasket is designed for pneumatic seeding device comprising a hopper in which the seeds are located which enter the seed chamber, and also a vacuum chamber and a seeding plate mounted between two chambers on a horizontal shaft. The seeding plate consists of a base with suction holes and a cover plate with through cutouts between which the gasket with the ledge in the zone of return of extra seeds is located. In the gasket ledge a wedge-shaped through cutout is made. The lower edge of the cutout is formed by a circular arc with the center on the axis of rotation of the seeding plate, the upper segment is in the form of a spiral which starting end coincides with the center of this circle, and the jumpers which height from the side of the cutout is in the range of 0.11 diameter of the suction hole. In the zone of contacting of the seeding plate cover plate with the gasket on the gasket convex sections the elongated grooves are made uniformly located circumferentially in which the working apertures are made. The diameter of the apertures is given by the width of the grooves. The working apertures are located on the inner and outer circles through 5-30° and filled with anti-friction material.EFFECT: invention has a low coefficient of friction, low capacity for adhesion, good running-in ability, thermal conductivity and stability of properties.4 dwgУплотнительная прокладка предназначена для пневматического высевающего аппарата, содержащего бункер, в котором расположены семена, поступающие в семенную камеру, а также вакуумную камеру, и установленный между камерами на горизонтальном валу высевающий диск. Высевающий диск состоит из основания с присасывающими отверстиями и накладки со сквозными вырезами, между которыми расположена прокладка с выступом в зоне отражения лишних семян. В выступе прокладки выполнен клинообразный сквозной вырез. Нижний край выреза образован дугой окружности с центром на оси вращения высевающего диска, верхним от
