| 摘要 |
The present invention relates to a device for journalling large eccentric forces which are generated by a rotating eccentric element. One problem associated with the bearing arrangements of these forces is that the size of the bearing is extremely large, which in its turn results in shaft speed limits readily being exceeded. By dividing the eccentric element into two or more tubular eccentric weights (1 and 2) arranged coaxially in relation to each other and journalling these in separate bearings (7, 8 and 9, 10 respectively) on shaft journals (5 and 6) connected to the vibration object, a distribution of the eccentric forces is obtained with a reduction of the bearing dimensions as a result. Driving of the eccentric element is achieved by means of a driver (14) arranged on the drive shaft (13) of the element and interacting with the eccentric weights (1, 2). |
