Rotary compressor drive line
AssigneeAtlas Copco Airpower, Naamloze Vennootschap
InventorsFlip Frans Mathys, Thomas Luc Swerts, William Maria Dominic Jacobs, Tom Raymond Jozef Hendrik De Vloo, Dimitri Dewil
Life of this patent
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Abstract
A drive train, specifically to a direct coupling of a drive shaft to a driven shaft provided in the drive train of a rotary compressor. Additionally, an integration of a lubricant circuit, including all associated channels and components, in the drive train.
Claims16
A coupling for a drive train of an oil-free rotary compressor, configured to directly couple a driven shaft configured to drive a compression element, movably arranged in an oil-free compression chamber, and a drive shaft driven by a driving element, the coupling comprising:
- a coupling hub arranged over a driven end of the driven shaft,
- a coupling disc that is attached or integrated to a driving end of the drive shaft;
- wherein the drive shaft comprises a hollow passage over an entire length of the drive shaft, and the coupling comprises an elongated stud arranged in the hollow passage of the drive shaft, the elongated stud being coupled to the driven end of the driven shaft and configured to clamp the coupling disc to the coupling hub,
- wherein the coupling further comprises a tensioning element, mounted on the elongated stud, which is configured to hold the elongated stud against a non-driving end of the drive shaft to apply a clamping force to the coupling,
- wherein the coupling comprises a fastening part, which is arranged between the driven end of the driven shaft and the elongated stud, which has a larger diameter than the elongated stud and is configured to couple the elongated stud to the driven shaft.
A coupling for a drive train of an oil-free rotary compressor, configured to directly couple a driven shaft configured to drive a compression element, movably arranged in an oil-free compression chamber, and a drive shaft driven by a driving element, the coupling comprising:
- a coupling hub arranged over a driven end of the driven shaft,
- a coupling disc that is attached or integrated to a driving end of the drive shaft;
- wherein the drive shaft comprises a hollow passage over an entire length of the drive shaft, and the coupling comprises an elongated stud arranged in the hollow passage of the drive shaft, the elongated stud being coupled to the driven end of the driven shaft and configured to clamp the coupling disc to the coupling hub,
- wherein the coupling further comprises a tensioning element, mounted on the elongated stud, which is configured to hold the elongated stud against a non-driving end of the drive shaft to apply a clamping force to the coupling,
- wherein the coupling comprises a conical clamping ring arranged between the driven end of the driven shaft and the coupling hub, which is configured to clamp the driven shaft to the coupling hub, wherein the conical clamping ring comprises a plurality of sequentially arranged conical clamping rings.
A method for coupling a driven shaft and a drive shaft of an oil-free rotary compressor comprising:
- directly coupling the driven shaft and the drive shaft in a drive train of the oil-free rotary compressor using a coupling,
- wherein the coupling comprises a coupling hub arranged over a driven end of the driven shaft, a coupling disc that is attached or integrated to a driving end of the drive shaft;
- wherein the drive shaft comprises a hollow passage over an entire length of the drive shaft, and the coupling comprises an elongated stud arranged in the hollow passage of the drive shaft, the elongated stud being coupled to the driven end of the driven shaft and configured to clamp the coupling disc to the coupling hub, wherein the coupling further comprises a tensioning element, mounted on the elongated stud, which is configured to hold the elongated stud against a non-driving end of the drive shaft to apply a clamping force to the coupling,
- wherein the coupling comprises a fastening part, which is arranged between the driven end of the driven shaft and the elongated stud, which has a larger diameter than the elongated stud and is configured to couple the elongated stud to the driven shaft.
Dependencies are inferred from the claim text.