Misalignment Correction in a Permanent Magnet Stepping Motor
Original Publication Date: 1986-May-01
Included in the Prior Art Database: 2005-Mar-09
Correction of a small amount of "one phase on" step error in a permanent magnet stepping motor is accomplished by correcting misalignment of the cans in the permanent magnet stepping motor. A permanent magnet stepping motor 1 includes a rotor magnet 2, inner cans 3 and 4, and outer cans 5 and 6. Windings 7 are disposed between the cans 4 and 6, and windings 8 are disposed between the cans 3 and 5. The inner cans 3 and 4 are fastened to each other by any suitable means. Portions of the inner can 3 are interleaved with portions of the outer can 5, and portions of the inner can 4 are interleaved with portions of the outer can 6. The outer can 5 is supported by a mounting plate 9, and the outer can 6 is supported by a rear bearing plate 10.