| 摘要 |
<p>The invention relates to a drive screw system 10 comprising a stationary track 14, a drive screw 16 mounted for rotation relative to the stationary track about a screw axis 20, a nut 30 threadingly engaging the drive screw 16 for linear displacement parallel to the screw axis in response to rotation of the drive screw, and at least one slide bearing 32 for radially supporting and guiding the drive screw, the slide bearing being moveable on the stationary track parallel to the screw axis. The slide bearing 32 is provided with at least a first friction pad 34 moveable relative to the slide bearing 32 in at least a first direction transverse to the screw axis 20, and spring means 36, 38 biasing the friction pad 34 in said first direction against the stationary track 14.</p> |
