Improve valve rotating mechanism of engine valve conical surface wearing and tearing

The utility model provides an improve valve rotating mechanism of engine valve conical surface wearing and tearing, including spring holder, locking plate, valve spring, valve, be used for installingvalve rotating mechanism's cylinder head and valve seat insert, at valve stem upper end design split collet slot type more than valve rotating mechanism valve locked groove on the valve stem, the valve locked groove is the annular, has 2~4, comprises axial detached two halves with valve locked groove complex locking plate, embraces in the valve locked groove position of valve stem, and match and clearance fit with the valve locked groove in the projecting ring area in the locking plate, is the line contact between the projecting ring area of locking plate and the valve locked groove. The malecone (strobilus masculinus) of locking plate matches with the interior conical surface of spring holder, and the zero clearance pairs between two half of locking plates, and it is sealed to form complete clitellum. The utility