Permanent magnet of hydraulic transmission permanent magnetic stirrer

The invention discloses a permanent magnet of a hydraulic transmission permanent magnetic stirrer. The permanent magnet is characterized by comprising N-S magnetic poles consisting of 6 groups of neodymium iron boron magnetic blocks; magnetic yokes are arranged on the outer sides of the N-S magnetic poles; the magnetic yokes connect the N-S magnetic poles in groups, so that a magnetic line of force is closed; and the magnetic blocks with the same polarity in the N-S magnetic poles are arranged on one side. According to the permanent magnet, a mode of arranging the polarity of the magnetic poles at intervals is changed, and a magnetic pole structure with the polarity arranged on two sides is designed, so that different magnetic field intensities in the center of a magnetic body can be obtained; and for the magnetic body with the structure, the provided moving magnetic field frequency is lower than that of an opposite magnetic pole structure, but the magnetic field intensity is far higher than a magnetic body s