Housing bearing for motor rotor

一种用于电机转子的箱体轴承

Abstract

The utility model discloses a housing bearing for a motor rotor. The housing bearing comprises a housing bearing body, wherein the section of the housing bearing body adopts a cuboid structure, the width of the surface, which is matched with a motor shaft, of the housing bearing body is smaller than that of an inner hole of the housing bearing body, an oil film layer is arranged on the surface of the inner hole of the housing bearing body and consists of silicon nitride or titanium nitride, and the thickness of the oil film layer is in a range of 4-5 micrometers; the outer surface of the housing bearing body is coated with a chrome-plated layer. According to the housing bearing, the length of the matched surface of the housing bearing and the shaft is reduced, so that problems that the motor shaft does not rotate smoothly and is even jammed and the like due to deflection of the motor shaft are solved, rotation of the motor shaft is facilitated, precision requirements for other parts are also reduced, and production and machining costs are reduced.
本实用新型公开了一种用于电机转子的箱体轴承,包括箱体轴承本体,所述箱体轴承本体截面呈长方体结构,其与电机轴的配合面宽度小于箱体轴承本体内孔宽度,所述箱体轴承本体内孔表面设有油膜层,所述油膜层由氮化硅或氮化钛构成,该油膜层厚度为4-5微米;所述箱体轴承本体外表面涂有镀铬层。本实用新型通过减小箱体轴承与轴配合面长度,防止电机轴产生偏斜而导致电机轴旋转不顺甚至卡死等问题,有利于电机轴转动,且对于其他零部件的精度要求也有所降低,从而降低生产加工成本。

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