Anti-misloading and friction-reducing thrust plate

Abstract

The utility model discloses a thrust plate capable of preventing misloading and reducing friction, which comprises two semi-annular thrust plate bodies with the same structure, an oil groove is arranged on the thrust surface of each thrust plate body, the oil groove is of a semi-closed structure, and the open end of the oil groove is positioned on the inner arc surface of each thrust plate body; the opening width and the opening depth of the oil groove are gradually reduced along the outer edge direction of the thrust plate body; the cross section of the oil groove is wedge-shaped, and when the crankshaft rotates, the gap of the oil groove is gradually reduced in the tangential direction of forward rotation of the crankshaft. According to the utility model, engine oil can reversely push the crankshaft through the wedge effect, so that the crankshaft and a thrust plate kinematic pair are incompletely contacted, a layer of oil film is quickly formed between the crankshaft and the thrust plate kinematic pair, and the friction work is reduced; and meanwhile, redundant flowing-out engine oil can take away friction heat generated between the thrust surface of the crankshaft and the thrust plate, so that the cooling effect is achieved, and the reliability and economical efficiency of the engine are improved.