| 摘要 |
<p>An anode drive assembly (100) for use in an x-ray tube (10) having a rotating anode (102) is disclosed. The anode drive assembly (100) is comprised of a bearing assembly (200) that provides rotational support to a rotor assembly (400). The rotor assembly (400) is connected to the rotating anode (102), and rotation is induced in the rotor by way of an inductive motor (16). The bearing assembly (200) is interconnected with the rotor assembly (400) via a bearing hub (300). The bearing hub (300) is comprised of a material having a coefficient of thermal expansion (CTE) that is intermediate to that of the components connected directly to the anode (102), and to the bearing shaft component (202). This provides a gradual transition in CTE along the conductive path between the anode (102) and the bearing shaft (202) so as to reduce the occurence of thermal expansion rate disparities between adjacent components.</p> |
