| 摘要 |
<p>A device for the lubrication of the internal members of a smoothing head (10) for stone material manufactures is described. It comprises a box-like sealed body rotated by the shaft of a driving motor entering thereinto and transmitting the driving movement, through said members to abrasive blocks (28, 40) fitted outside said body, which is comprised of a casing (14) rotated by the driving motor and is upside sealed by a fixed cover (16) crossed by the shaft of the driving motor. The lubrication device comprises a pair of symmetrically opposed ducts (32) connected through a first open end (32a) to a passage (34), communicating with the inside of the casing (14), crossing the fixed cover (16) in a central area. The ducts (32) extend firstly in radial direction into the casing (14) till the contour of a transversal diametral plane thereof, then are bent and continue in a final portion thereof (32c) extending in accordance with a direction substantially tangential to the contour of the casing (14) and end with the other open end (32d). A flange (17) between the inside of the casing (14) and the fixed cover (16) is provided for limiting the level of the lubricant contained in the casing (14). <IMAGE></p> |
