PIEZOELECTRIC LUBRICATION DEVICE FOR A BEARING

摘要

The lubrication device serves the purpose of feeding the lubricant (4) finely dosed to the bearing (34) to be lubricated. Moreover, it ensures that in the case of a required matching of the lubricant requirement to changed conditions the quantity of lubricant that is fed can be rapidly changed. Provided for this purpose is a piezoelectric tube (1), which works as a "micropump" and which supplies the lubricant (4) in the form of droplets (2) finely dosed into a conveying gas flow (6). Said conveying gas flow (6) carries the droplets (2) into the bearing (34). Upon change in the lubricant requirement, the frequency (f) and/or voltage (U) applied to the piezoelectric tube (11) is changed in such a way that the new requirements are satisfied. For this purpose, the tube (1) can be used, in particular, as an actuator in a temperature-controlled control circuit. Said circuit automatically optimises the lubricant feed. ……