JPH01146775U

JPH01146775U -

Info

Publication number: JPH01146775U
Application number: JP3412688U
Authority: JP
Priority date: 1988-03-14
Filing date: 1988-03-14
Publication date: 1989-10-11

Description

[Brief explanation of drawings]

図面は、この考案の実施例を示すものであつて
第１図は内ロータ型の断面図、第２図は外ロータ
型の断面図である。図面において、１はハウジング、２はステータ
、３はクロスローラベアリング（四点接触ベアリ
ング）、７はエンコーダ（検出器）、１０はロー
タである。 The drawings show an embodiment of this invention; FIG. 1 is a sectional view of an inner rotor type, and FIG. 2 is a sectional view of an outer rotor type. In the drawings, 1 is a housing, 2 is a stator, 3 is a cross roller bearing (four-point contact bearing), 7 is an encoder (detector), and 10 is a rotor.

Claims

[Claims for Utility Model Registration] (1) A stator is disposed inside the outer cylindrical part of a double cylindrical housing, one end of which is formed by a disc-shaped part with a circular notch in the center, A cylindrical rotor has one end formed by a shaped part, has a central axis, and has a smaller diameter than the stator. Magnetic poles are attached to the outside of the cylindrical part, and these housings and rotors are loosely fitted facing each other, and the housing is By fixing the inner ring part of the cross roller bearing or the four-point contact bearing to the outside of the inner cylindrical part, and fixing the outer ring part of the cross roller bearing or the four-point contact bearing to the inside of the cylindrical part of the rotor, A servo motor, wherein the rotor is rotatably supported by the housing, a main body of a detector is mounted inside an inner cylindrical portion of the stator, and the rotor of the detector is mounted on a central axis of the rotor. (2) The stator is installed inside the outer cylindrical part of a double cylindrical housing, one end of which is formed by a disc-shaped part with a circular notch in the center, and one end of which is formed by the disc-shaped part, and the center Magnetic poles are attached to the outside of the inner cylindrical part of a double cylindrical rotor having a shaft and consisting of an outer cylindrical part with a larger diameter than the stator and an inner cylindrical part with a smaller diameter, and these housings and the rotor are loosely fitted facing each other. An inner ring portion of a cross roller bearing or a four-point contact bearing is fixed to the outside of the outer cylindrical portion of the housing, and an outer ring portion of the cross roller bearing or four-point contact bearing is fixed to the inside of the outer cylindrical portion of the rotor. The rotor is rotatably supported by the stator, the main body of the detector is mounted inside the inner cylindrical part of the stator, and the rotor of the detector is mounted on the central axis of the rotor. Servomotor.