| 摘要 |
PROBLEM TO BE SOLVED: To align a magnetic pole with high accuracy when a pole detector is replaced after installation, by mounting a detecting device including a detector detecting at least the pole position of a permanent magnet type motor within a supporting shaft of the permanent magnet type motor which has a stator in it and has a rotor outside it. SOLUTION: A traction sheave 7 is fixed to a rotor 22 by respective bolts 26a, 26b, and the rotor 22 is journalled to the supporting shaft 21 fixed to the foundation structure 20 of a hoist by respective bearings 27a, 27b. A space 21a is formed in the supporting shaft 21 and a detector 29b is stored therein. The pole position signal (z) and the rotational output signal of the detector 29b are outputted to a terminal block 33 through respective output lines 30a, 30b and respective connectors 33a, 33b. The detector 29b is fixed to a stationary plate 30 with a fitting 29c, a rotating shaft 29a is fixed to a stationary plate 28, the stationary plate 30 is fixed to the supporting shaft 21 with a guide pin 32a, and the stationary plate 28 is supported on the rotor 22 with a guide pin 31a. |
