| 摘要 |
The present invention discloses a grinding wheel assembly including a coupling member, two clamping disks and a grinding wheel. There is a plurality of bulged anchor rims around the coupling member. On both sides of the coupling member, there are two hollow ducts which are linked through a first shaft duct in the center and surrounded by a plurality of laterally penetrated ventilation openings. Two clamping disks are symmetrically mounted onto the grinding wheel. On one side of each clamping disk are anchor troughs, ventilation holes, cylinders and shaft ducts, and on the other side is a polygonal trough. There are cogs around the grinding wheel and there are clamping troughs and a plurality of mounting troughs on each side of the grinding wheel. In the center of the grinding wheel is a coupling opening whose inner wall has a plurality of concaved anchor openings. From above interrelated mechanical design, it tends to make the coupling member, two clamping disks and the grinding wheel tightly anchor with each other, so that the object of being installed or uninstalled easily, being steadily structured and being used for longer life time can be achieved.
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