| 摘要 |
Ball screw assembly comprising:
- a screw (2) provided with an outer thread (3);
- a nut (4) provided with an inner thread (5);
- a series (6) of balls (7) able to circulate along a circulating path (10) between the screw and the nut, along which the balls are engaged in the threads thereof; and
- recirculating means (8) defining a recirculating channel (9) to carry balls from one end to the other end of said circulating path (10);
the recirculating channel (9) comprising a return channel (14) provided on the nut and, between the ends of this return channel and the corresponding ends of said circulating path, deflecting channels (27, 28) which are defined respectively between surfaces (25) of deflecting elements (20, 21) engaged in respective holes (11, 12) of the nut (4) and local zones (26) of surfaces (16) of these respective holes. |
