Motor-driven machine

A motor-driven machine with integrated suction duct removal of chips drawn or sucked into the machine, comprising:

• a drive motor;
• a suction removal fan including a fan wheel connected to and driven by said drive motor, said fan wheel having a plurality of blades;
• an air guide housing within which said plurality of blades rotate, said air guide housing having an inlet and an outlet, and defining a front wall;
• a suction conduit associated with the inlet of said air guide housing, said suction conduit serving to conduct air and chips to said air guide housing;
• and
• a disintegrating element situated at the inlet of said air guide housing and in communication with said suction conduit, and extending between said front wall of said air guide housing and said plurality of blades, said disintegrating element being fixed relative to said air guide housing, wherein:
• the disintegrating element comprises an annular element disposed coaxially with respect to said fan wheel and through which the sucked-in air and chips flow, said disintegrating element being formed as a nozzle-like component having a narrower end which receives the sucked-in air and chips from the suction conduit at its narrower end;
• the plurality of blades of said fan wheel extend axially, face said front wall and define a gap with said disintegrating element;
• at least one cutting edge-like raised portion is formed on said disintegrating element in said gap, each cutting edge-like raised portion extending approximately in a tangential direction relative to the narrower end;
• and
• sucked-in chips are disintegrated in said gap by means of said plurality of blades and said at least one cutting edge-like raised portion.