APPARATUS AND METHOD FOR IMPRESSING A CORRUGATION INTO A PIPE

摘要

An apparatus has a corrugating device through which a pipe is moved producing corrugation in the circumferential direction of the pipe by rotation. The corrugating device has a corrugator head which is rotatable about its axis, and a hollow shaft on which the corrugator head is firmly fitted and via which the corrugator head is driveable in rotation. A vibration measuring means is connected mechanically to the corrugating device for automatically detecting mechanical vibrations of the rotating corrugating device. The vibration measuring means simultaneously detects measured values for vibrations of the hollow shaft which are characteristic of the state of the hollow shaft bearings and measured values for vibrations of the corrugator head which are characteristic of the balancing thereof. A display apparatus displays the measured values detected thereby and/or evaluation results based on the measured values is furthermore provided.

主权项

1. An apparatus for impressing a corrugation into a metallic smooth pipe having a corrugating device through which the pipe is moved in its longitudinal direction and which produces the corrugation in the circumferential direction of the pipe by rotation, said corrugating device comprising:
a corrugator head which is rotatable about. its axis;a hollow shaft on which the corrugator head is firmly fitted and via which the corrugator head is driveable in rotation, said hollow shaft being mounted rotatably on hollow-shaft bearings; anda vibration measuring means fitted on the apparatus and mechanically connected to the corrugating device, suitable for automatically detecting mechanical vibrations of the rotating corrugating device,wherein the vibration measuring means is suitable for simultaneously detecting measured values for vibrations of the hollow shaft which are characteristic of the state of the hollow shaft bearings and measured values for vibrations of the corrugator head which are characteristic of the balancing thereof, andwherein a display apparatus is coupled to the vibration measuring means for displaying the measured values detected thereby and/or evaluation results based on the measured values is provided.