| 摘要 |
PURPOSE:To reduce a noise due to a resonance phenomenon of a linear pulse motor by engaging any number of spacers of arbitrary shape with an axle supporting shaft between the primary side core and the axle and movably fastening the axle along the shaft. CONSTITUTION:Wheels 12-15 are rotatably provided at shafts 10, 11 at cores 2, 3 on the back surfaces of which permanent magnets 6, 7 are respectively arranged, coils 9a-9d are respectively wound on poles 2a, 2b, 3a, 3b formed with toothed parts which are displaced by 1/4 from each other to form the primary side, and moved on the secondary side made of a scale 10 having toothed parts 16a of constant pitch. Any number of spacers 17 of arbitary shape are engaged with the shafts 10, 11 between the cores 2, 3 and the wheels 12-15 and the wheels 12-15 are movably fastened along the shaft 10. Accordingly, a noise can be reduced by not bringing the drive frequency of a motor to its intrinsic frequency by controlling the spacers 17. |
