| 摘要 |
<p>In a contact-free linear drive, the stationary guiding part is designed as a profile part (2) of which the magnetic material in the region of the spirals (3, 4) approaches the latter (8, 11, 17) and forms a recoil to the next spiral at a distance from the spirals. The rotating part has interspaced double spirals (1 or 3, 4), whereby a constant magnetic field (7) is generated in the magnetic circuit formed by a double spiral and the magnetic reflux. This results in a very simple and economical design and method of manufacture. The profile part (2) can be designed as a profile rail (9) or as a tube (10, 15) and may have window-like recesses (6), undulations (11, 12), or ribs (17). The double spiral (1) can have radially oriented permanent magnets (14) incorporated in the spirals or axially oriented permanent magnets (14) between weak magnetic spirals.</p> |
