Outer seam allowance motor casing and three-phase asynchronous motor

• Main Authors: LIU LEILEI, CAI DANLING, XU HAIFENG, XI SHOURONG, ZHANG YUANJIA, YANG FAN, MA XIANG, GU XUEZHENG
• Format: Patent
• Language: Chinese; English
• Published: 05.05.2020
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The invention discloses an outer seam allowance motor casing and a three-phase asynchronous motor. The outer seam allowance motor casing comprises a casing, an end cover, a stator, a rotor and a rotating shaft. The casing is connected with the end cover through a seam allowance. The casing is an outer seam allowance, and the end cover is an inner seam allowance. The round surface of the outer seamallowance of the casing and the round surface of the inner seam allowance of the end cover are assembled through clearance fit or transition fit, and the plane of the outer seam allowance of the casing and the plane of the inner seam allowance of the end cover are fastened through bolts to achieve axial close fit. The external structure of the casing seam allowance is convenient for lathing and assembling, improves the production efficiency, reduces the production cost, and is beneficial to ensuring the axial and radial assembly precision of the motor, thereby ensuring the concentricity of the stator and the rotor an