POLY-PLANETARY MACHINE FOR GRINDING, GLOSSING AND POLISHING FLOOR Russian patent published in 2006 - IPC B24B7/18 B24B7/22 

FIELD: machine engineering, possibly grinding floors, mainly of hard materials such as concrete, stone and so on.

SUBSTANCE: machine includes reduction gear and two working organs in the form of planetary discs embraced by common housing and mounted with possibility of rotation in opposite directions. Holders of abrasive tools are uniformly distributed along periphery of each disc and they are joined with satellites. The last are mutually coupled through transfer mechanism and they are joined to planetary disc with possibility of simultaneous rotation around their own axis and around axis of planetary disc. Each planetary disc is quickly detachable one. There are separate casings for embracing each planetary disc together with its transmission mechanism and fixed against rotation relative to common housing. Shafts of planetary discs and reduction gear are provided with members of mounted-dismounted bayonet joints assembled inside common housing outside casings of planetary discs.

EFFECT: enhanced efficiency, improved quality of working, reliable protection of transmission mechanism against stone dust, possibility of interchanging members of apparatus.

12 cl, 15 dwg, 2 tbl