| 摘要 |
A radial magnetic bearing comprises an inner rotor (101) including a central shaft (110) having a ferromagnetic armature (111) mounted on the shaft (110); and an outer stator (102) comprising a plurality of electromagnets including poles (121) made of ferromagnetic material which project radially inwardly towards the rotor (101), whilst leaving air-gaps (e) between end faces of the poles (121) and the ferromagnetic armature (111), and coils (122) wound around the poles (121). The poles (121) are extended through outer portions (123) which are attached to a supporting member (127). Each pole (121) and the corresponding outer portion (123) are included in an angularly segmented module (120A, 120B) comprising a stack of laminations made of ferromagnetic material. The outer portion (123) defines shoulders (125) with respect to the corresponding pole (121), the outer portion (123) contacting outer portions (123) of neighboring segmented modules (120A, 120B) and the outer portions (123) of all segmented modules (120A, 120B) being assembled by clamping rings (127, 128), whereas the coils (122) located in free spaces around the poles (121) are mounted in a string. |
