Apparatus comprising a shaft and a balancing sleeve
AssigneeSiemens Aktiengesellschaft
InventorGrahame Knowles
Life of this patent
Estimating the term…
Abstract
An apparatus including a shaft mounted for rotation and a balancing sleeve is provided. The balancing sleeve functions to balance the shaft during rotation and includes first and second ends. The first end is secured to the shaft so that the balancing sleeve is substantially concentric with the shaft and rotates with the shaft. The second end incorporates balancing weight to balance the shaft at lower speeds of rotation of the shaft where there is substantially no flexing of the shaft. The lengthwise stiffness of the balancing sleeve is matched to the lengthwise stiffness of the shaft to maintain balance of the shaft at higher speeds of rotation of the shaft where there is flexing of the shaft.
Claims15
An apparatus, comprising:
- a shaft mounted for rotation;
- and
- a balancing sleeve for balancing the shaft during rotation, the balancing sleeve comprising:
- a first end secured to the shaft so that the balancing sleeve is substantially concentric with the shaft and rotates with the shaft, and
- a second end incorporating a balancing weight to balance the shaft at a first speed of rotation of the shaft in which there is substantially no flexing of the shaft,
- wherein the lengthwise stiffness of the balancing sleeve is matched to the lengthwise stiffness of the shaft to maintain balance of the shaft at a second speed of rotation of the shaft in which there is flexing of the shaft, the second speed being higher than the first speed.
Dependencies are inferred from the claim text.