Bionic australian thorny devil grinding wheel, grinding device, and preparation process

A bionic Australian thorny devil grinding wheel, comprising:

• a matrix, having a superhydrophobic layer arranged on an outer peripheral surface;
• and
• abrasive grains which are prismatic with an isosceles trapezoidal bottom surface, wherein an axis of the abrasive grain is distributed in a radial direction of the matrix, one end of the abrasive grain in an axial direction is connected to the outer peripheral surface of the matrix, and the other end is of a hydrophilic structure;
• and two adjacent abrasive grains are arranged at intervals to form a hexagonal-prism-shaped abrasive grain cluster, and gaps are reserved between adjacent abrasive grain clusters, such that a hexagonal surrounding flow channel is formed in a circumferential direction of each abrasive grain cluster.