Method for producing a ring gear for a planetary gear train, and a modular system having such a ring gear
A method for producing a ring gear for a planetary gear train, wherein a continuous profile is produced by an extrusion process and the continuous profile is subsequently cut to a predetermined cutting length in order to form a ring gear body.
1. A method for producing a ring gear for a planetary gear train, the ring gear having a ring gear body with internal toothing on the inside of the ring gear body, the method comprising the steps of:
producing a continuous profile of the ring gear by an extrusion process involving extruding plastic, wherein the internal toothing is formed on the inside of the plastic ring gear body;
rotating the continuous profile; and
subsequently cutting the continuous profile of the plastic ring gear body without burrs by laser cutting on the rotating continuous profile to a predetermined cutting length in order to form the plastic ring gear body.
2. The method according to claim 1 , wherein the continuous profile is cut several times at different cutting lengths.
3. The method according to claim 1 , further comprising the steps of:
providing an end plate and mounting the end plate on the ring gear body.
4. The method according to claim 3 , wherein the end plate is joined to the ring gear body.
5. The method according to claim 3 , further comprising the steps of producing the end plate from a plastic.
6. A modular system with planet gears and different ring gears which can be combined to form planetary gear trains with different stages, wherein the ring gears are each produced by a method according to claim 1 .