Coupling type intelligent bearing monitoring device arranged on bearing

Abstract

The invention discloses a coupling type intelligent bearing monitoring device arranged on a bearing. The coupling type intelligent bearing monitoring device is characterized by comprising a shell and a rotating speed coded disk, wherein the rotating speed coded disk is a round coded disk coaxial with the shell; an intelligent monitor is axially inserted into a gap between a rotating ring and a fixed ring of the bearing and forms an interference fit with the bearing; and two strain gage type acceleration sensing devices, a rotating speed sensing device and a temperature sensing device are embedded in the shell and all connected with a circuit board on the end face of the shell through a signal output line. The invention has the obvious advantages that the low-frequency-band characteristics of the bearing can be effectively extracted; the reliability and the effectiveness of signals are improved; all the sensing devices are used as a part of the intelligent bearing and easy to mount and demount, and the damage to the bearing structure and the bearing stress are reduced; and sampling is triggered by the rotating speed, thereby realizing the synchronous trigger acquisition of multiple parameters of the bearing.

Description

technical field

[0001] The invention belongs to monitoring equipment, in particular to a coupled intelligent bearing monitor applied to bearing state detection. Background technique

[0002] The current integrated smart bearings have two structural forms: external and embedded. The external combination method does not destroy the structure of the bearing but changes the overall size of the traditional bearing. At the same time, the characteristics of this type of combination determine that there is a certain distance between the sensing component and the source of the fault, so that the acquired signal cannot truly reflect the bearing. This method cannot be used for early detection of bearing fault characteristics, because the bearing fault detection with this structure cannot guarantee the reliability of the signal; the embedded combination method is very close to the source of the measured signal, and the signal The intermediate interface of transmission is reduced, the c...

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