US 2021/0276073 A1 · Method for manufacturing a rotor shaft and rotor shaft

Abstract

A method for manufacturing a rotor shaft for an electrical aggregate, including providing a pin having a shaft plug-in, in particular a cylindrical shaft plug-in; producing a hollow rotor shaft body being open at least at a first end for receiving the pin and in form of a rotary body, where an oversize exists between at least one outer surface of the shaft plug-in and at least one inner surface of the rotor shaft body; and inserting the shaft plug-in into the rotor shaft body for fastening the pin to the rotor shaft body for finishing the rotor shaft, such that the process and operation of manufacturing a rotor shaft is simplified while at the same time reducing costs and material waste, and to produce a rotor shaft that can withstand high loads and transmit high torques.

Claims9

Dependent claims

A method for manufacturing a rotor shaft, in particular for an electrical aggregate, comprising the steps:

a) providing a pin comprising a shaft plug-in;
b) producing a hollow rotor shaft body being open at a first end for receiving the pin and in form of a rotary body, wherein an oversize exists between an outer surface of the shaft plug-in and an inner surface of the rotor shaft body;
and
c) Inserting the shaft plug-in into the rotor shaft body for fastening the pin to the rotor shaft body, wherein the inner surface of the rotor shaft body and/or outer surface of the shaft plug-in are plastically deformed during inserting of the shaft plug-in into the rotor shaft body, as a result of which a positive fit is caused between the pin or the shaft plug-in and the rotor shaft body, and wherein the connection between the pin or the shaft plug-in and the rotor shaft body is formed as a toothing.

1 more element

A rotor shaft, in particular for an electrical aggregate, comprising:

a pin with a shaft plug-in, and
a rotor shaft body being open at least a first end for receiving said pin and formed as a hollow rotary body,
wherein an oversize exists between an outer surface of the shaft plug-in and an inner surface of the rotor shaft body and the shaft plug-in is inserted into the open end of the rotor shaft body for fastening the pin to the rotor shaft body, characterized in that the inner surface of the rotor shaft body and/or the outer surface of the shaft plug-in is plastically deformed during inserting the shaft plug-in into the rotor shaft body, as a result of which a from fit is caused between the pin or the shaft plug-in and the rotor shaft body, and the connection between the pin or the shaft plug-in and the rotor shaft body is formed as toothing.

Dependencies are inferred from the claim text.

Method for manufacturing a rotor shaft and rotor shaft

Life of this patent

Method for manufacturing a rotor shaft and rotor shaft

Life of this patent

Abstract

Claims9