Lubricating device with a control unit for operating the lubricating pump

A lubricating device including a lubricant pump, a lubricant reservoir for supplying lubricant to a machine to be lubricated, a control unit for determining an operating state of a machine and for operating the lubricant pump based on signals of at least one sensor configured to detect emissions emanating from the machine to be lubricated, and a housing configured to be attached to a lubrication nozzle of the machine to be monitored,

• wherein a reading of the signals of the sensor by the control unit is limited to a predetermined set of time windows with a predetermined width, and
• wherein the time windows are separated by an interval where the signals of the sensor are not read,
• wherein the control unit is configured to switch into a safety lubrication mode upon detecting an OFF-state of the machine to be monitored, wherein a nonzero amount of lubricant is supplied to the machine in the safety lubrication mode, and wherein the nonzero amount of lubricant is smaller than an amount of lubricant supplied in at least one operation mode employed when an on-state has been detected.

A lubricating device including a lubricant pump, a lubricant reservoir for supplying lubricant to a machine to be lubricated, a control unit for determining an operating state of a machine and for operating the lubricant pump based on signals of at least one sensor configured to detect emissions emanating from the machine to be lubricated, and a housing configured to be attached to a lubrication nozzle of the machine to be monitored,

• wherein a reading of the signals of the sensor by the control unit is limited to a predetermined set of time windows with a predetermined width, and
• wherein the time windows are separated by an interval where the signals of the sensor are not read,
• wherein a vibration structure interacts with a piston of the lubricant pump such that a resonance frequency of the vibration structure depends on a position of the piston.