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

Abstract

The present disclosure provides a bionic Australian thorny devil grinding wheel, a grinding device, and a preparation process, and relates to the field of grinding equipment. For the problem of the poor effect of conveying grinding fluid by a grinding wheel at present, imitating semi-open capillary channels and a honeycomb structure on the skin of the Australian thorny devil, prisms with isosceles trapezoidal bottom surfaces are arranged on a matrix in sequence to form directional liquid self-conveying flow channels and a superhydrophilic honeycomb-like hexagonal distribution structure.

What is claimed is: 
     
         1 . 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.   
     
     
         2 . The bionic Australian thorny devil grinding wheel according to  claim 1 , wherein the outer peripheral surface of the matrix is covered with the abrasive grain clusters arranged in array, and the abrasive grain clusters are arranged in a honeycomb-like hexagon. 
     
     
         3 . The bionic Australian thorny devil grinding wheel according to  claim 2 , wherein along a circular direction of the outer peripheral surface of the matrix, the abrasive grain clusters are arranged at intervals into a plurality of columns, and adjacent columns of the abrasive grain clusters are staggered. 
     
     
         4 . The bionic Australian thorny devil grinding wheel according to  claim 1 , wherein a middle flow channel is formed between two abrasive grains of the abrasive grain cluster, and the middle flow channel is located between side surfaces of corresponding isosceles trapezoid bottom edges of the two abrasive grains. 
     
     
         5 . The bionic Australian thorny devil grinding wheel according to  claim 4 , wherein the middle flow channel is tangentially distributed along a position of the outer peripheral surface of the matrix, and communicates with the surrounding flow channel. 
     
     
         6 . The bionic Australian thorny devil grinding wheel according to  claim 5 , wherein both the middle flow channel and the surrounding flow channel are semi-open capillary channels to exert capillary action with a tendency toward a hydrophilic structure to water inside the middle flow channel and the surrounding flow channel. 
     
     
         7 . The bionic Australian thorny devil grinding wheel according to  claim 1 , wherein the abrasive grains are chamfered corresponding to side ridges of prisms. 
     
     
         8 . A grinding device, comprising the bionic Australian thorny devil grinding wheel according to  claim 1 . 
     
     
         9 . A process for preparing the bionic Australian thorny devil grinding wheel according to  claim 1 , comprising:
 performing superhydrophobic treatment on the outer peripheral surface of the matrix to obtain the superhydrophobic layer;   processing the abrasive grains, such that the hydrophilic structure is formed at the one end of the abrasive grain; and   pairing the abrasive grains to obtain the abrasive grain clusters, adhering the abrasive grains to the outer peripheral surface of the matrix in a manner of the abrasive grain clusters, arranging the adjacent abrasive grain clusters at intervals, and forming a bionic Australian thorny devil flow channel between adjacent abrasive grains, wherein the abrasive grain clusters are arranged in a bionic honeycomb structure.   
     
     
         10 . The process for preparing the bionic Australian thorny devil grinding wheel according to  claim 9 , wherein a masking method is adopted to adhere the abrasive grains to the matrix. 
     
     
         11 . The bionic Australian thorny devil grinding wheel according to  claim 9 , wherein the outer peripheral surface of the matrix is covered with the abrasive grain clusters arranged in array, and the abrasive grain clusters are arranged in a honeycomb-like hexagon. 
     
     
         12 . The bionic Australian thorny devil grinding wheel according to  claim 11 , wherein along a circular direction of the outer peripheral surface of the matrix, the abrasive grain clusters are arranged at intervals into a plurality of columns, and the adjacent columns of the abrasive grain clusters are staggered. 
     
     
         13 . The bionic Australian thorny devil grinding wheel according to  claim 9 , wherein a middle flow channel is formed between two abrasive grains of the abrasive grain cluster, and the middle flow channel is located between side surfaces of corresponding isosceles trapezoid bottom edges of the two abrasive grains. 
     
     
         14 . The bionic Australian thorny devil grinding wheel according to  claim 13 , wherein the middle flow channel is tangentially distributed along a position of the outer peripheral surface of the matrix, and communicates with the surrounding flow channel. 
     
     
         15 . The bionic Australian thorny devil grinding wheel according to  claim 14 , wherein both the middle flow channel and the surrounding flow channel are semi-open capillary channels to exert capillary action with a tendency toward a hydrophilic structure to water inside the middle flow channel and the surrounding flow channel. 
     
     
         16 . The bionic Australian thorny devil grinding wheel according to  claim 9 , wherein the abrasive grains are chamfered corresponding to side ridges of prisms.