UNIVERSAL GRINDING HEAD Russian patent published in 2014 - IPC B24B41/47 B24B7/22 B24B23/02 

FIELD: process engineering.

SUBSTANCE: invention relates to abrasive processing and can be used in hand-held angular stone processing machines. Grinding head comprises case, drive shaft and conical reduction gear with two driven gears fitted on aligned vertical shaft and bushing. Two abrasive wheels are fitted and aligned on the latter to run in opposite directions, inner wheel being permanently pressed against the machine article by the spring. Through bore is made in vertical shaft to feed surfactant of powder abrasives on article surface. Abrasive wheels feature identical areas of contact with processed article and are fitted in guard jacket with pipe for connection via flexible hose with exhaust device.

EFFECT: equal torque at abrasive wheels.

1 dwg