Displacement compensation cartridge receiver connecting structure capable of being deformed in all directions

By designing the connecting structure with "several" font-shaped bending characteristics on the receiver connection structure, the problem of bolt connection damage caused by load differences between receivers is solved, and the stability of receiver connection is improved.

CN120331910APending Publication Date: 2025-07-18AVIC GUIYANG ENGINE DESIGN & RES INST
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Patent Information

Application Number
CN202510700570.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-28
Publication Date
2025-07-18

AI Technical Summary

Technical Problem

In aircraft engines, due to load differences between the receivers, the bolted connectors bear large radial shear loads, which are prone to damage.

Method used

A connecting structure with multiple "several" font-shaped bending features are designed on the receiver connection structure, and the displacement is compensated by deformation in each direction and the radial shear load is reduced.

Benefits of technology

Effectively compensate for the displacement between the receivers, reduce the risk of damage to the bolted connectors, and improve the stability of the receiver connection structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a displacement compensation cartridge receiver connecting structure capable of deforming in all directions. The displacement compensation cartridge receiver connecting structure comprises a cartridge receiver connecting structure body capable of compensating displacement in all directions through deformation in all directions. When the cartridge receiver A and the cartridge receiver B work, displacement in all directions can be compensated by means of deformation of the n-shaped bending characteristic on the connecting structure in all directions, and the problem that adjacent cartridge receiver bolt connecting pieces can bear large radial shear loads, so that the cartridge receiver connecting structure and the connecting pieces are prone to damage is solved.
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Description

Technical Field

[0001] The present invention relates to a displacement compensation casing connection structure that can be deformed in all directions, belonging to the technical field of aero-engines. Background Art

[0002] When the engine maneuvers with the aircraft, the casing will undergo elastic deformation under the combined action of its own inertial overload, aerodynamic load and temperature load, and even undergo irreversible plastic deformation under special harsh working conditions.

[0003] Due to different loads on each stage of the casing, when using a conventional flange or mounting edge bolt connection (see Chinese Patent Publication No. CN116006332A), there are significant differences in the deformation amounts of the casings in different directions, resulting in a large radial shear load on the bolt connectors used for adjacent casings, making the casing connection structure and the connectors prone to failure. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a displacement compensation casing connection structure that can be deformed in all directions.

[0005] The present invention is achieved through the following technical solutions.

[0006] A displacement compensation casing connection structure that can be deformed in all directions provided by the present invention includes:

[0007] A casing connection structure that can compensate for displacements in all directions by deforming in all directions.

[0008] The casing connection structure includes casing A, casing B, and a compensation connection structure located between casing A and casing B.

[0009] Flange mounting edges are provided at both ends of casing A and casing B. The compensation connection structure includes a connection structure member with flange mounting edges at both ends.

[0010] The flange mounting edges at both ends of the connection structure member are connected to the flange mounting edges at the ends of casing A and casing B respectively through bolt A and bolt B.

[0011] After bolt A and bolt B penetrate through the connection structure member and the ends of casing A and casing B, nuts are screwed thereon for fixation respectively.

[0012] The radial rotation section of the connection structure member is composed of a plurality of continuous "Ji" - shaped bending features.

[0013] The beneficial effects of the present invention are as follows: When the casings A and B are working, the "J"-shaped bending features on the connecting structure can be used to compensate for displacements in all directions through deformation in all directions, solving the problem that the bolt connectors between adjacent casings will bear large radial shear loads, making the casing connection structure and connectors prone to damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front view schematic diagram of the present invention;

[0015] Figure 2 is the structural schematic diagram of the present invention;

[0016] Figure 3 is the schematic diagram of the front view section of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0017] The technical solution of the present invention will be further described below, but the scope of protection claimed is not limited thereto.

[0018] As Figures 1 to 3 shown.

[0019] A displacement compensation casing connection structure deformable in all directions of the present application includes:

[0020] Casing A1 and casing B2 docked with casing A1, and flange mounting edges are provided at both ends of casing A1 and casing B2.

[0021] It further includes a connection structure member 5 with flange mounting edges at both ends. The radial rotating section of the connection structure member 5 is composed of a plurality of continuously connected "J"-shaped bending features; the flange mounting edges at both ends of the connection structure member 5 are respectively connected to the flange mounting edges at the ends of casing A1 and casing B2 through bolt A3 and bolt B4. The bolt A3 and bolt B4 penetrate through the connection structure member 5, and after passing through the ends of casing A1 and casing B2, nuts are respectively screwed for fixation.

[0022] The connection structure member 5 constitutes a compensation connection structure between casing A1 and casing B2. When casing A1 and casing B2 are working, the "J"-shaped bending features on the connection structure 5 can be used to compensate for displacements in all directions through deformation in all directions, solving the problem that the bolt connectors between adjacent casings will bear large radial shear loads, making the casing connection structure and connectors prone to damage; at the same time, the compensation connection structure formed by the connection structure member 5 can play the same role when connecting other components at the remaining ends of casing A1 and casing B2.

Claims

1. An axially deformable displacement compensation casing connection structure, characterized in that Comprising: A casing connection structure capable of compensating for displacements in all directions by deforming in all directions.

2. The deformable displacement compensation casing connection structure deformable in all directions according to claim 1, characterized in that: The casing connection structure includes casing A (1), casing B (2), and a compensation connection structure between casing A (1) and casing B (2).

3. The axially deformable displacement compensation casing connection structure according to claim 2, wherein: Flange mounting edges are provided at both ends of casing A (1) and casing B (2). The compensation connection structure includes a connection structure member (5) with flange mounting edges at both ends.

4. The deformable displacement compensation casing connection structure deformable in all directions according to claim 3, characterized in that: The flange mounting edges at both ends of the connection structure member (5) are correspondingly connected to the flange mounting edges at the ends of casing A (1) and casing B (2) by bolt A (3) and bolt B (4).

5. The axially deformable displacement compensation casing connection structure according to claim 4, characterized in that: After bolt A (3) and bolt B (4) penetrate through the connection structure member (5) and the ends of casing A (1) and casing B (2), nuts are correspondingly screwed for fixation.

6. The axially deformable displacement compensation casing connection structure according to claim 3, wherein: The radial rotary section of the connection structure member (5) is composed of a plurality of mutually continuous "Ji"-shaped bending features.

Citation Information

Patent Citations

  • Tesla valve sealing principle-based turbine inter-case sealing structure

    CN116006332A