Media transport in rotor shaft

A technology of rotor and hollow shaft, which is applied in the field of medium conveying system in the rotor shaft, which can solve the problems of excessive weight of the rotor shaft, excessive medium volume, and limited low weight.
CN106464085AActive Publication Date: 2017-02-22THYSSENKRUPP PRESTA TECCENTER AG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
THYSSENKRUPP PRESTA TECCENTER AG
Publication Date
2017-02-22

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Abstract

The invention relates to a hollow rotor shaft for the rotor of an electrical machine, having a cylindrical jacket, which terminates at both ends with end flanges, wherein a main journal is formed at each of the end flanges, wherein an access bore is provided at least in one of the main journals, said access bore forming access to the shaft cavity that is surrounded by a cylindrical jacket, wherein a conducting element is provided, which fits into the access bore such that the conducting element seals off from the shaft cavity and which leads through the surrounding shaft cavity to the other main journal, into which the conducting element likewise fits such that the conducting element seals off from the shaft cavity, wherein the conducting element allows a liquid or gaseous medium to be conducted through.
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Description

technical field

[0001] The invention relates to a hollow rotor shaft for a rotor of an electric machine, wherein the hollow rotor shaft comprises a cylindrical barrel closed on both sides by end flanges, wherein on the end flanges in each case there are positioned A journal, and wherein at least one of the end flanges, in particular in the journal, is provided with a coaxial access hole which provides access for the medium to the shaft cavity surrounded by the cylindrical barrel. The invention also relates to a rotor with a rotor hollow shaft and a corresponding electric machine, wherein the rotor hollow shaft is equipped with a lamination assembly. Background technique

[0002] It is evident, for example, from DE 42 40 045 C1 and DE 203 07 198 U1 that such rotor hollow shafts have been known for a long time and are used in various places where the lightest possible construction is sought. If the rotor hollow shaft is "assembled" from several parts, in particular from the c...

Claims

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