Gear targeted lubrication device and method based on magnetic nano-diamond particles

The invention discloses a gear targeted lubrication device and method based on magnetic nano-diamond particles. Comprising a nanoparticle magnetizing module, an external magnetic field module, an ejector module, a control system module and a recovery device module. In the service process of the gear, when the temperature detector detects that the temperature rise of the tooth surface is abnormal, the control system releases nano-diamond particles to enter the magnetizing module, the magnetic nano-diamond particles are prepared in real time through the processes of high-temperature heating, precipitation, filtering, drying and cooling, the prepared magnetic nano-diamond particles are sprayed to the tooth surface area through the ejector, and the magnetic nano-diamond particles are obtained. The control system adjusts the current intensity of the magnetic field coil and the direction of the magnet, so that magnetic induction lines of the external magnetic field form a gradient magnetic field and are focused at