Device for detecting the state of a machine element

摘要

A device for detecting a mechanical state of a machine element rotates about an axis, such as a shaft is formed with an actuator disposed on the machine element so as to be axially movable, an arrangement for converting a torsion of the machine element into an axial displacement of the actuator and a sensor disposed so as to be stationary relative to the machine element for detecting the axial displacement of the actuator. A mark is assigned to the actuator for detection by the sensor in order to detect the axial displacement of the actuator. A speed (n) of the machine element can be determined from the number of marks that are detected per unit of time.

主权项

1. A device for detecting the mechanical state of a machine element that rotates about an axis, comprising:
an actuator disposed on the machine element so as to be axially movable; means for converting a torsion of the machine element into an axial displacement of the actuator; and a sensor disposed so as to be stationary relative to the machine element for detecting the axial displacement of the actuator; wherein a mark is provided on the actuator and detected by the sensor to detect the axial displacement of the actuator; and wherein a speed (n) of the machine element is determined from a number of mark detections per unit of time by the sensor.