| 摘要 |
PROBLEM TO BE SOLVED: To drive a reciprocating part or a gate-shaped structure so as to have repeatability with high accuracy relative to a base floor. SOLUTION: In this drive assembly unit for controlling and driving a reciprocating part 4 which is driven so as to reciprocate relative to the base floor 3 including a toothed rod-shaped part 6, a supporting body 16 of a rotor 9 is connected to a main shaft 8 of a motor where a pinion 5 engaged with the toothed rod-shaped part 6 is integrally formed by a key means 17. An annular chamber 18 is formed at the supporting body 16 for weight reduction, and pivoting both ends of the main shaft 8. An opposite side of the pinion 5 of the main shaft 8 is connected to a rotator of a converter 20 and a fixed small shaft 19. The motor is a high torque synchronous motor of which the rotor 9 has a multi-pole closing ring, or a brushless motor of which the stator-rotator release ring has a steel rotator ring with a permanent magnet plate buried. |
