The invention provides a two-dimensional half-
bridge type electro-hydraulic proportional
reversing valve based on a
Halbach array bidirectional magnetic suspension shaft
coupling. The two-dimensionalhalf-
bridge type electro-hydraulic proportional
reversing valve comprises a two-dimensional half-
bridge type electro-hydraulic proportional
reversing valve body, a proportional
electromagnet and the
Halbach array bidirectional magnetic suspension shaft
coupling, wherein the two-dimensional half-bridge type electro-hydraulic proportional reversing valve body is a 2D valve composed of a valve core and a valve base body, the left end of the valve base body is provided with one bidirectional proportional
electromagnet, the left end of the valve core is provided with one
Halbach array bidirectionalmagnetic suspension shaft
coupling, the valve core is connected with the bidirectional proportional
electromagnet through the Halbach array bidirectional magnetic suspension shaft coupling, the poleshoe surfaces of yoke irons are provided with Halbach array magnetic sheets in a pasted manner, the wing surfaces of the upper and lower two sides of an oblique wing
promoter corresponding to the poleshoe surfaces of yoke irons are provided with the Halbach array magnetic sheets in a pasted manner, so that magnetic
repulsion force is formed, and the magnetic
repulsion force makes the oblique wingpromoter be capable of being 'suspended' between the yoke irons purely depending on magnetic force without any help of mechanical structures, a left-end high-pressure round hole in the left end of the valve core, a tight-end high-pressure round hole, a right-end low-pressure round hole and a feeling channel form a four-way
rotary valve and form a hydraulic resistance
half bridge by being connected in series, and the pressure of a left sensitive cavity and a right sensitive cavity at the two ends of the valve core is controlled.