TRANSMISSION GEAR Russian patent published in 2008 - IPC A01C7/00 A01C19/00 F16D1/00 A01C15/00 

FIELD: engines and pumps.

SUBSTANCE: invention relates to a transmission gear designed to transmit the torque and to operate auxiliary mechanisms including those incorporating a flexible rotary shaft. The transmission gear couples reduction gear (42) with a batch bin. The transmission gear incorporates drive shaft (82) with faceted bush (84). The said bush with cotter pin (86) goes fitted on drive shaft (82). Cotter pin (86) sets up the limit of transmitted torque, that is, it adjusts it. Faceted bush (84) is driven by the reduction gear output shaft. The aforesaid shaft has a hexahedral hole to receive hexahedral bush (84). Drive shaft (82) incorporates drive coupling (88) incorporating annular coaxial bore (90) with aligned co-perpendicular holes (92) passing through the said bore (90). Drive coupling (88) engages with drive shaft (94) making a batch bin shaft. The said shaft (94) is arranged in bore (90). Between drive shaft (82) and shaft (94), detachable glut (98) is fitted. The aforesaid transmission gear is used in seeder (10) to sow cereal cropsincorporating a frame and the batch bin arranged thereon. The said batch bin has, apart from input shaft (94), a plough to form sowing furrows. The frame supports reduction gear (42) driven by the flexible rotary shaft and interacting with batch bin input shaft (94) via the aforesaid transmission gear.

EFFECT: protection of the flexible drive shaft plug connector against an ingress of mud and other impurities during decoupling.

8 cl, 5 dwg