DEVICE FOR CUTTING WORN FRICTION STRAPS Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: device has a cutting tool in the form of a trihedral pyramid, bearing disk 2 mounted on bed 1, the disk has a rotary drive in the form of power cylinders 3 made double-cavity which cavities 4 and 5 are parted by partition 6. The rotary disk also has two telescopic rods 8. Free ends of the inner rods are made in the form of gear racks engageable in pairs with wheel 10 on which spline shaft 11 pivotally mounted on the bed coaxially to bearing disk 2 is fastened. When a working fluid is fed to rodless cavities of the cylinders cutting tools 12 mounted on the outer surfaces of the rods move to meet each other through the surface of steel disk 22. The friction strap is raised by the end cutting edge of the cutting tool and is cut by shearing on both sides through its entire width. EFFECT: improved structure. 4 dwg