Tool for press fitting of motor rotor bearing

Abstract

The invention relates to a tool for press fitting of a motor rotor bearing, and belongs to the technical field of motors. The tool for press fitting of the motor rotor bearing comprises a pressing head, a positioning part and a base, wherein a boss is arranged on the base, a groove B is coaxially arranged in the boss, the shape and size of the boss are consistent with those of an inner cavity of the positioning part, one end of the positioning part sleeves the boss, a groove A is formed in the pressing head, a through hole is coaxially formed in the groove A, and the pressing head is placed outside the positioning part. The tool is simple in structure, easy and convenient to operate, high in positioning precision, stable and reliable. A motor rotor does not incline, and the bearing in thepressing head and the base can be pressed on a middle shaft of the rotor at the same time, so that the efficiency is high. By means of a steel ball in the pressing head and a top column in the base, the coaxiality of the bearing and the middle shaft of the rotor during press fitting is effectively ensured, and the press fitting precision is high.

Description

technical field [0001] The invention relates to a tooling for press-fitting a motor rotor bearing, which belongs to the technical field of motors. Background technique [0002] Motor bearings, also known as motor bearings or motor bearings, are special bearings specially used in motors or motors. The motor bearing is a part that supports the shaft. It can guide the rotation of the shaft and can also bear the idling parts on the shaft. Whether the motor bearing is installed or not will directly affect the life and performance of the bearing, and at the same time affect the noise of the motor during operation. . For example, the Chinese patent with the publication number of CN205685258U discloses a bearing pressing device, which includes a base, a lower mold on the base, and an upper mold above the lower mold. The lower mold is used to accommodate the rotor body The vertical cavity, the cavity has a through hole coaxial with the cavity for accommodating the lower shaft of th...

AI Technical Summary

Problems solved by technology

However, the depth of the concave cavity is shallow, and the positioning plate can only position one side of the rotor. When the rotor is positioned through the concave cavity and the positioning plate, the rotor will be skewed, resulting in that the rotor shaft is not in line with the through hole when the upper mold is pressed down. Alignment affects the normal press-fitting of bearings; in addition, both ends of the motor rotor usually need to install bearings, and the bearing press-fitting device can only press-fit one bearing at a time, which is inefficient

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