Retaining device for disassembling a bladed wheel of a turbine engine and method employing it
AssigneeSafran Aircraft Engines
InventorsYannick Durand, Nicolas Daniel Delaporte
Life of this patent
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Abstract
The invention relates to a retaining device for disassembling a bladed wheel of a turbine engine. The invention is characterized in that the retaining device (100) includes: an inter-blade ring sector (101), a plurality of retaining clips (105), each retaining clip (105) cooperating with one of the damping elements (40), the retaining clips (105) extending radially while being attached circumferentially to the ring sector (101).
Claims11
A retaining device for disassembling a wheel having blades of a turbine engine in order to remove a downstream retaining ring of the wheel when the wheel is disposed around a vertical axis with an upstream side of the wheel turned upward,
- the blades of the wheel extending radially and being intended to be mounted circumferentially around a disk of the wheel, the wheel comprising, for each blade, a damper disposed in a cavity which opens radially inward and which is delimited by a platform of the blade and by an inner upstream wall of the blade terminating by an upstream groove, the downstream retaining ring being housed in a downstream groove of the platform of the blade, the upstream groove and the downstream groove extending radially,
- wherein the retaining device is intended to be mounted coaxially with a vertical axis and comprises:
- an inter-blade ring sector extending circumferentially and comprising a flank extending radially, and
- a plurality of individual lateral retaining clips, which have a prescribed spacing from one another and which are attached axially downstream of the inter-blade ring sector, wherein the individual lateral retaining clips form tabs protruding radially outward axially downstream of the inter-blade ring sector, wherein the flank is axially facing the individual lateral retaining clips,
- wherein the inter-blade ring sector is configured so that the flank is can be inserted into a plurality of upstream grooves being circumferentially adjacent, and
- wherein each individual lateral retaining clip is intended to cooperate with one of the dampers.
A retaining device for disassembling a wheel having blades of a turbine engine in order to remove a downstream retaining ring of the wheel when the wheel is disposed around a vertical axis with an upstream side of the wheel turned upward,
- the blades of the wheel extending radially and being intended to be mounted circumferentially around a disk of the wheel, the wheel comprising, for each blade, a moldable damper disposed in a cavity which opens radially inward and which is delimited by a platform of the blade and by an inner upstream wall of the blade terminating by an upstream groove, the downstream retaining ring being housed in a downstream groove of the platform of the blade, the upstream groove and the downstream groove extending radially,
- wherein the retaining device is intended to be mounted coaxially with a vertical axis and comprises:
- an inter-blade ring sector extending circumferentially and comprising a flank extending radially, and
- a plurality of individual lateral retaining clips, which have a prescribed spacing from one another and which are attached axially downstream of the inter-blade ring sector, wherein the individual lateral retaining clips form tabs protruding radially outward axially downstream of the inter-blade ring sector, wherein the flank is axially facing the individual lateral retaining clips,
- wherein the inter-blade ring sector is configured so that the flank is can be inserted into a plurality of upstream grooves being circumferentially adjacent, and
- wherein each individual lateral retaining clip is intended to cooperate with one of the moldable damper.
Dependencies are inferred from the claim text.