| 摘要 |
The invention relates to a method for producing a cavity (14) in a stator of a progressive cavity pump, wherein material is removed in the interior of a stator blank (10) by means of a tool (11). In order to improve the method in such a way that very long stators can be produced in one production operation, the invention proposes that, within the stator blank (10), the tool (11) performs a rotational motion through a first shaft (12) and an eccentric motion around a second shaft (13), wherein the stator blank (10) and the tool (11) are moved toward each other. The invention further relates to a device for performing the method. |
