The invention provides a magnetic liquid
tooth space injection method of a magnetic liquid sealing device and belongs to the field of sealing of
mechanical engineering, aiming at solving the problems that when an existing magnetic liquid sealing device is used, magnetic liquid cannot be easily, effectively and uniformly injected into the sealing device due to reasons including small sealing gaps, a property of responding a
magnetic field by the magnetic liquid and the like. The method comprises the following steps: firstly, putting a shaft sleeve (12) with axis vertical to the ground, wherein an oblique direction of a pole tooth is upward; injecting magnetic liquid (11) into a
tooth space; secondly, putting a sealing
assembly with the axis vertical to the ground, wherein the oblique direction of the pole tooth is upward; injecting the magnetic liquid (11) into a pole shoe
tooth space; finally, sleeving the shaft sleeve (12) filled with the magnetic liquid (11) into the sealing
assembly filled with the magnetic liquid (11). The magnetic liquid tooth space injection method has the advantages that a gap between the shaft sleeve and a pole shoe pole tooth is small, the intensity of the
magnetic field is great, a gap between the shaft sleeve and the pole shoe tooth space is large and the intensity of the
magnetic field is small; the magnetic liquid stored in a pole shoe and a shaft sleeve tooth space is adsorbed into the gap between the pole teeth and a sealed magnetic liquid O-shaped ring is formed.