Support interface and device for an engine casing

Patent metadata

Field	Value
Publication number	US-10697327-B2
Application number	US-201615760930-A
Country	US
Kind code	B2
Filing date	Sep 15, 2016
Priority date	Sep 17, 2015
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

The invention relates to the field of support interfaces, and in particular to such a support interface (30a, 30b) for an engine casing (90) and comprising a coupling part (50), a first plurality of bolts (80), and a plurality of pegs (70). The coupling part (50) has an outer face (52) presenting a cavity (42) suitable for receiving a support arm (20a, 20b), and an inner face (51) suitable for being mounted on an outer face (93) of the engine casing (90), together with a first plurality of orifices (53) between the outer face (52) and the inner face (51) of the coupling part (50). Each bolt (80) has a threaded shank (82) received in an orifice (53) of the first plurality of orifices (53), and a head (81) suitable for bearing against the outer face (52) of the coupling part (50). Each peg (70) has a threaded orifice (71) in which the threaded shank (82) of one of the bolts (80) of the first plurality of bolts (80) is engaged through a first end of the peg (70), each peg having a second end that is enlarged and suitable for bearing against an inner face (92) of the engine casing (90).

First claim

The invention claimed is:

1. A support interface for an engine casing, the support interface comprising:
a coupling part having an outer face with a cavity suitable for receiving a support arm, and an inner face suitable for being mounted on an outer face of the engine casing, together with a first plurality of orifices between the outer face and the inner face of the coupling part;
a first plurality of bolts, each having a threaded shank received in an orifice of the first plurality of orifices and a head suitable for bearing against the outer face of the coupling part; and
a plurality of pegs, each peg of the plurality of pegs having a threaded orifice in which the threaded shank of one of the bolts of the first plurality of bolts is engaged through a first end of a respective peg, each peg also having a second end that is enlarged and suitable for bearing against an inner face of the engine casing.

2. The support interface according to claim 1 , wherein at least one orifice of said first plurality of orifices presents an inside surface complementary to an outside surface of the first end of a corresponding peg of the plurality of pegs.

3. The support interface according to claim 2 , wherein at least two orifices of said first plurality of orifices each present an axisymmetric inside surface that is complementary to the outside surface of the first end of the corresponding peg.

4. The support interface according to claim 1 , wherein the coupling part presents a second plurality of orifices, each orifice of the second plurality of orifices being threaded and opening out in the outer face of the coupling part.

5. A support device having at least a first support interface according to claim 1 , and a first support arm connected to a frame and having one end received in the cavity of the coupling part of the first support interface.

6. The support device according to claim 5 , wherein the coupling part presents a second plurality of orifices, each orifice of the second plurality of orifices being threaded and opening out in the outer face of the coupling part, the support device further comprising a second plurality of bolts connecting the first support arm to the coupling part through the orifices of the second plurality of orifices.

7. The support device according to claim 5 , including a second support interface, together with a second arm connected to the frame and having one end received in the cavity of the coupling part of the second support interface.

8. An assembly comprising at least one engine casing and the support interface of claim 1 , wherein the pegs are received in orifices going from an inner face to an outer face of the engine casing, the pegs having enlarged second ends bearing against the inner face of the engine casing.

9. The assembly according to claim 8 , wherein the pegs are received by being pressed into said orifices in the engine casing.

10. A method of mounting the support interface according to claim 1 on the engine casing, the method comprising the following steps:
inserting each of the pegs as far as its enlarged second end from an inner face of the engine casing into the orifices going from the inner face to the outer face of the engine casing;
placing the coupling part with its inner face on the outer face of the engine casing and the orifices of the first plurality of orifices in alignment with the pegs; and
engaging the threaded shanks of the first plurality of bolts through the first plurality of orifices into the threaded orifices of the pegs in order to hold the coupling part stationary relative to the engine casing.

11. The support interface according to claim 1 , wherein the cavity extends from the outer face of the coupling part towards the inner face of the coupling part.

12. The support interface according to claim 1 , wherein the first end of each peg of the plurality of pegs contacts the coupling part.

Assignees

• Safran Aircraft Engines

Inventors

• Dubois Margaux Justine Emma
• Caetano Nelson
• Demoulin Alexandre Christophe Adrien

Classifications

• B66C1/107

  for lifting engines · CPC title

• B64F5/50

  Handling or transporting aircraft components · CPC title

• F05D2260/31

  Retaining bolts or nuts · CPC title

• F05D2230/60

  Assembly methods · CPC title

• F05D2240/14

  Casings or housings protecting or supporting assemblies within · CPC title