| 摘要 |
A screw mechanism of manual control of axial position of shaft is arranged as a body, a mechanism for axial displacement through displacement of rollers in outer rings of double-row bearings, a fixed cup, mounting and fastening elements of lubrication system. At the right end of the shaft manual drive pulley is installed in central opening of which threading is provided, this is in interaction with the outer threading of drive fixed shaft. The manual drive pulley is rigidly connected to the end of the fixed cup. In the inner diameter of the cup two radial bearings are installed, those at the ends interact: at the left end – with the inner lug, and at the right end – with the support of the manual drive pulley that is installed to the inner diameter of the cup, and the inner diameters of radial bearings are in interaction with the outer diameter of the second step of stepped cylindrical pin with smaller diameter that is rigidly installed to central opening of the body and is closed with cover that is fixed with bolts to the body with possibility of axial displacement. The left end of the drive fixed shaft is installed to bearing that is rigidly fixed in the body to that one executive device is rigidly connected. |
