Machine and method for monitoring the state of a safety bearing of a machine
First Claim
Patent Images
1. A method for monitoring wear of a safety bearing of a rotor shaft of a machine, wherein the rotor shaft is supported by a magnetic bearing, the safety bearing having an outer ring and an inner ring arranged for rotation with respect to the outer ring, the method comprising the steps of in the following order:
- switching the magnetic bearing off for monitoring the state of the safety bearing,catching a rotor shaft of the machine with the safety bearing when the magnetic bearing is switched off, andwhile the magnetic bearing remains switched offrotating the rotor shaft with the machine by using a defined motion sequence,measuring a physical variable of the safety bearing with a sensor, wherein the physical variable is a distance between the outer ring and the inner ring, anddetermining the wear of the safety bearing from the measured distance between the outer ring and the inner ring.
7 Assignments
0 Petitions
Accused Products
Abstract
An operating method for container quay cranes used to load and unload container ships aided by a PC with a monitor in a crane driver'"'"'s cabin. The crane driver operates a touchscreen on the monitor, thereby enabling the crane to reach its specified target in a fully or partially automatic manner. Several operating modes, including a training mode, are provided.
-
Citations
11 Claims
-
1. A method for monitoring wear of a safety bearing of a rotor shaft of a machine, wherein the rotor shaft is supported by a magnetic bearing, the safety bearing having an outer ring and an inner ring arranged for rotation with respect to the outer ring, the method comprising the steps of in the following order:
-
switching the magnetic bearing off for monitoring the state of the safety bearing, catching a rotor shaft of the machine with the safety bearing when the magnetic bearing is switched off, and while the magnetic bearing remains switched off rotating the rotor shaft with the machine by using a defined motion sequence, measuring a physical variable of the safety bearing with a sensor, wherein the physical variable is a distance between the outer ring and the inner ring, and determining the wear of the safety bearing from the measured distance between the outer ring and the inner ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
Specification