| 摘要 |
<p>A gyratory crusher (10) comprises a crushing head (22), which is arranged rotatably on a substantially vertical shaft (18) and on which a first crushing shell (30) is mounted, and a frame (12), on which a second crushing shell (32) is mounted, which second crushing shell (32), together with the first crushing shell (30), delimits a crushing gap (34). A supporting piston (36) is arranged inside a cavity (40) of said shaft (18), which supporting piston (36) is displaceable in the vertical direction in order to adjust the width of the crushing gap. An eccentric (20) is, by means of at least one radial bearing (42), arranged rotatably about the shaft (18). The gyratory crusher has an oil line (44), arranged in the cavity (40) and extending through a piston plate (37) comprised in the supporting piston (36), for supplying lubricating oil to a lubricating oil chamber (46) configured at least partially in said cavity (40) above the piston plate (37), the lubricating oil chamber (46) being connected to said radial bearing (42) by a duct (50) arranged in the shaft (18).</p> |
