| 摘要 |
<p>There is presented an electric motor having a drive shaft (10), an armature (14) and commutator assembly (12) fixed on the drive shaft, a housing (20) disposed around the assembly, and an endframe (30) fixed to the housing. The endframe is provided with a journal (34) in which is mounted a bearing (36) supporting the drive shaft. Further disposed in the endframe are brushes (48) in contact with a commutator portion (16) of the assembly, and brush tubes (44) for supporting the brushes. A brush retainer (80) is mounted on the journal and has a face portion (82) overlaying a face portion of the bearing (38). The journal is provided with ribs (84) which extend axially of the retainer. The ribs are engaged with the retainer, which is plastic, and hold the retainer in non-rotative fashion with the retainer face portion abutting an end of the commutator portion.</p> |
