Function gradient material motor bearing capable of reducing electric corrosion

• Main Authors: PANG XIAOXU, ZHU MENGYU, CHU YISHUANG, LI JUNXING, YANG CHUANMENG, QIU MING, DONG YANFANG, MAN RUIDONG
• Format: Patent
• Language: Chinese; English
• Published: 20.10.2023
• Subjects: BEARINGS; BLASTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERATION; HEATING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

A functionally graded material motor bearing capable of reducing electric corrosion comprises a bearing outer ring, a bearing inner ring and a plurality of balls, and the bearing outer ring sequentially comprises a ceramic ring layer, a functionally graded mixed material ring layer and a bearing steel ring layer from outside to inside in the radial direction. The bearing inner ring sequentially comprises a bearing steel ring layer, a functional gradient mixed material ring layer and a ceramic ring layer from outside to inside in the radial direction; the functional gradient mixed material is formed by mixing a ceramic material and a bearing steel material, and the mixing volume ratio of the two materials meets a gradient distribution function in the radial direction. The bearing steel ring layer can reduce the grinding cost and ensure the bearing capacity of the raceway to the balls; the ceramic ring layer has the functions of heat insulation and electricity retardation, so that the insulativity of the bearin