Device for adjusting the centering of a ring for synchronizing the control of pivoting vanes in a turbomachine
AssigneeSnecma
InventorAlain Marc Lucien Bromann
Life of this patent
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Abstract
The invention provides a device for adjusting the centering of a control ring for pivoting vanes of a turbomachine, the device comprising a plurality of pads for coming into contact with a circular surface that is coaxial with the ring, each pivoting vane being connected to the control ring via a lever having a first end secured to the control ring via a crank pin disposed radially on said ring, and a second end mounted on a pivot of the vane, each of said pads being secured to a pad carrier. Each pad carrier is secured under the control ring by means of attachment systems that are designed to be assembled from over the ring.
Claims17
A device for adjusting the centering of a control ring for pivoting vanes of a turbomachine, the device comprising a plurality of pads for coming into contact with a circular surface that is coaxial with the ring, each pivoting vane being connected to the control ring via a lever having a first end secured to the control ring via a crank pin disposed radially on said ring, and a second end mounted on a pivot of the vane, each of said pads being secured to a pad carrier, wherein each pad carrier is secured under the control ring by attachment systems that are designed to be assembled from over the rings,
- wherein the pad carrier includes a substantially tubular portion extending longitudinally from the control ring towards the inside thereof and suitable for receiving a complementary tubular portion of the pad, the device further including a screw for screwing into the complementary tubular portion of the pad in such a manner as to enable the radial position of the pad to be adjusted.
A device for mounting a pad on a control ring of a turbomachine, the device comprising:
- a pad;
- a pad carrier, wherein said pad is secured to said pad carrier;
- a fastener configured to secure said pad carrier under the control ring, said fastener having a portion extending over said control ring when said pad carrier is secured under said control ring;
- and
- a spring interposed between the pad carrier and the pad so as to provide damping for the pad.
A device for mounting a pad on a control ring of a turbomachine, the device comprising:
- a pad;
- a crank pin disposed radially on said control ring;
- a pad carrier, wherein said pad is secured to said pad carrier;
- a fastener configured to secure said pad carrier under the control ring, said fastener having a portion extending over said control ring when said pad carrier is secured under said control ring,
- wherein the pad carrier is secured to the control ring with two attachment systems that are disposed symmetrically on either side of the crank pin.
A device for mounting a pad on a control ring of a turbomachine, the device comprising:
- a pad;
- a crank pin disposed radially on said control ring;
- a pad carrier coupled to said pad, said pad carrier being positioned between said control ring and said pad, said pad carrier comprising two flanges disposed symmetrically on either side of the crank pin;
- and
- two fasteners configured to secure said pad carrier to the control ring, each of said two fasteners extending through one of said two flanges of said pad carrier and through said control ring so that each of said two fasteners has a first free end on a side of said control ring and a second free end on another side of said control ring, said second free end being positioned between said control ring and said pad.
Dependencies are inferred from the claim text.