STRAIGHT PNEUMATIC MACHINE Russian patent published in 2024 - IPC B24B23/02 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, in particular, to straight pneumatic pencil-type machines, and can be used for precision small-size metal-working axial tool. Machine consists of a housing, an anti-vibration air motor with a spindle, a shutoff valve, and air supply and discharge hoses with a silencer. Said engine comprises cylinder accommodating rotor with grooves for installing textolite blades. Air intake is installed on the end side of the cylinder, and from the other end of the cylinder there protrudes an elongated neck of the rotor with a spacer ring, a metal front shield of the bearing and a ball rear bearing installed on it. Metal spacer rings, front bearings of the spindle and metal spacer sleeve are installed on the spindle. Spindle is screwed on rotor elongated neck.

EFFECT: design features of the tool providing its rotation with the specified peripheral speed, minimum noise and vibration are given.

1 cl, 1 dwg