| 摘要 |
The electric rotary operating mechanism (1), to form the shed at a Jacquard loom, has a rotor (6) and a stator which is composed of at least two stator components (4,5) along the rotary axis (X-X'). The rotor is a tube (7) with at least two permanent magnets (8,9) of opposing polarity, axially within the tube. Each magnet is in the air gap (10) of a stator component. Each stator component has a global alignment to give their permanent magnets an angular pitch of 60-120 degrees for a biphase action, and 90-150 degrees and preferably 120 degrees for a triphase action. Alternatively the permanent magnets have a global alignment, and the stator components have an angular pitch as would be structured for the angled magnets. Spacers (11) are axially between the magnets within the tube. The rotor has a unit (15) to work with a brake and/or an angular position detector (16). The permanent magnets and/or the detection unit are keyed in relation to the tube by casting or mounting. The magnets are cylindrical. The rotor is supported by at least one bearing (7a,7b) with a ball race. |
