CARDAN JOINT Russian patent published in 2004 - IPC

FIELD: mechanical engineering, in particular, transmissions of tractors, automobiles and agricultural machines. SUBSTANCE: the cardan joint has forks, needle bearings and a spider with tenons and a system of lubricating channels combining the axial channels in the tenons meeting in the center of the spider and the holes in the spider for installation of a grease cup and a discharge valve. The spider has a reservoir or reservoirs for lubricant, each made in the form of a cavity located in the spider body and connected to the channels in the tenons by means of one-sided action valves, and the cavity hole is closed by at least one device for extrusion of lubricant. EFFECT: enhanced maintainability and durability of cardan joints. 2 dwg