Кокорин Денис Владимирович (RU),Мацнев Алексей Викторович (RU),Козловский Олег Николаевич (RU),Корсунов Сергей Олегович (RU),Ивченко Александр Владимирович (RU),Зленко Сергей Васильевич (RU)
申请号：
RU2014151973/13
公开号：
RU0000157113U1
申请日:
2014.12.22
申请国别(地区):
RU
年份:
2015
代理人:
摘要：
The claimed utility model relates to agricultural machinery, particularly to a fan treatment systems for combine harvesters.Target Utility Model - providing more favorable purge sieves to obtain a high separation efficiency over the entire length of sieves, reduction of manufacturing cost of the shaft in conjunction with the impeller.The technical result is achieved in that the cleaning fan comprising a plurality of arranged on a common shaft radial impellers rotating in the fan casing, each of which sucks air in the direction parallel to the shaft axis of rotation and injects it into two ventilation channel, with one vent located tangentially to the direction of motion of the blades, and provides a stream of air traffic is not a straight line and an arc to additional sieve stryasnoy board, the second vent kan L is located tangentially to the direction of movement of the blades and has straight portions channel above and below, providing a flow of air entering into upper and lower sieve harvester, with a lead-in portion of the two ventilation ducts are sheet metal in the form of a tongue having at the edge of the cutout in the form of a concavity, introduced two wedge-shaped flap, one - in each ventilation duct which during operation is separated from each airflow impeller into four uniform air flow directed to the lower and upper hour and the additional sieve stryasnoy boards, as well as upper and lower sieve, which shaft is made of a hexagon metal rod, which are fixed by means of the impeller clamp.
