Expansion pot assembly for aero-engine

Abstract

The utility model discloses an aero-engine expansion pot assembly which comprises an expansion pot and a supporting frame, the supporting frame comprises a first support and a second support, the first support is provided with a first connecting part used for being connected with an external fixing piece, and the second support is provided with a second connecting part used for being connected with the external fixing piece. The first support is detachably connected with the second support. According to the scheme, the problem that in the prior art, when the expansion kettle assembly is adjusted from the off-line test state to the factory state, disassembly and assembly collision damage is likely to happen is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an expansion kettle assembly for an aero-engine. BACKGROUND

[0002] The expansion kettle assembly for an aero-engine is a device installed on an aero-engine for use, which mainly comprises an expansion kettle and a support frame. The expansion kettle and the support frame are connected and integrated together, and the installation and fixation of the expansion kettle are realized through the connection and fixation of the support frame with other components on the aero-engine. In the prior art, the offline test state of the aero-engine is different from the delivery state, and therefore the installation mode of the expansion kettle assembly is also different. The support frame of the expansion kettle assembly is divided into a test support frame and a delivery support frame. Specifically, in the offline test state, as shown in FIG. Figure 1 , the expansion kettle assembly is mainly supported by the cylinder head water outlet flange seat 1 and the engine support 5. The expansion kettle assembly is connected with the cylinder head water outlet flange seat 1 through one end of the test support frame 2a, and connected with the engine support 5 through the horse clamp 4 at the other end. In the delivery state, as shown in FIG. Figure 2 , the engine support 5 in Figure 1 is removed, so that the expansion kettle assembly is supported by the decorative cover 6. Therefore, the support connection position of the expansion kettle assembly needs to be changed, and therefore the test support frame 2a of the expansion kettle assembly needs to be replaced by the delivery support frame 2b. When the support frame of the expansion kettle assembly is replaced, the test support frame 2a needs to be disassembled from the cylinder head water outlet flange seat 1, and then the test support frame 2a needs to be disassembled from the expansion kettle 3 before replacement. After the replacement is completed, the expansion kettle assembly is installed and connected again. In this way, the expansion kettle assembly is prone to damage due to repeated disassembly and assembly, which affects the service life of the expansion kettle. At the same time, the operation time for disassembly and replacement of the expansion kettle assembly is relatively long, which affects the production efficiency.

[0003] Chinese patent document CN212318145U discloses an expansion kettle mounting device, which comprises a first support, a second support for mounting an expansion kettle, and an anti-abrasion pad provided on the first support and used for contacting the expansion kettle. The second support has a mounting groove for embedding a lower support of the expansion kettle, and a shock-absorbing pad is arranged in the mounting groove to contact the lower support. The first support is fixedly connected with a cross beam by bolts, and the first support has first and second fixing holes through which the bolts pass. The second support is provided with first and second projection welding nuts, and two mounting ears of the expansion kettle are connected with the first and second projection welding nuts by bolts, respectively. The first support has third and fourth fixing holes through which two bolts pass, respectively. The expansion kettle mounting device of the prior art can make the expansion kettle more stable, the shock-absorbing pad arranged in the lower mounting groove can effectively reduce the vibration of the expansion kettle, and the anti-abrasion pad adhered to the contact position of the first support and the expansion kettle can effectively reduce the abrasion.

[0004] The expansion tank in the prior art is mainly installed on the cross beam through the first support, and is not suitable for the mode of two-point support installation of the expansion tank through the support frame. Content of the utility model

[0005] The utility model discloses an expansion tank assembly for aero-engine, which aims to solve the problem that the expansion tank assembly in the prior art is prone to damage caused by disassembly and assembly when being adjusted from the off-line test state to the factory state.

[0006] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides an expansion tank assembly for aero-engine, which comprises an expansion tank and a support frame, the support frame comprises a first support and a second support, the first support is provided with a first connecting part for connecting with an external fixing part, the second support is provided with a second connecting part for connecting with an external fixing part, and the first support and the second support are detachably connected.

[0007] The beneficial effects of the basic scheme are as follows: when the expansion tank assembly is adjusted from the off-line test state to the factory state, the first support and the second support of the support frame of the expansion tank assembly can be separately disassembled according to the different external fixing parts, without the need of disassembling the entire support frame and the expansion tank, thereby reducing the problem that the expansion tank is prone to damage caused by disassembly and assembly of the entire support frame, and improving the work efficiency of disassembly and assembly.

[0008] Preferably, the expansion tank is connected with the first support, the position where the second support is connected with the first support is away from the first connecting part, and the second support and the first connecting part are located on the two sides of the expansion tank respectively. By adopting such a setting, when in use, the second support is disassembled and separated from the first support to adapt to the change of the external fixing part of the expansion tank assembly, so that the expansion tank and the first support do not need to be disassembled and assembled, thereby further improving the disassembly and assembly convenience of the expansion tank assembly.

[0009] Preferably, the second connecting part has at least two non-coaxial connecting holes. By adopting such a setting, when the second connecting part is installed and fixed through the two non-coaxial connecting holes, the second support will not rotate around the connecting holes, thereby further improving the support stability of the second support and the installation stability of the expansion tank assembly.

[0010] Preferably, the first support and the second support are connected through bolts. By adopting such a setting, the disassembly and assembly convenience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a schematic view of the expansion tank assembly for aero-engine in the prior art in the test state;

[0012] Figure 2 Figure 1 is a schematic view of an existing expansion pot assembly for an aero-engine in a factory state;

[0013] Figure 3 Figure 1 is a schematic view of an existing expansion pot assembly for an aero-engine in a factory state; DETAILED DESCRIPTION

[0014] The specific embodiments are further described in detail below:

[0015] As known by those skilled in the art, a horse saddle-shaped buckle is a kind of connecting piece used for hoop connection of rod-shaped workpieces.

[0016] The reference signs in the drawings of the specification include: cylinder head water outlet flange seat 1, support frame 2, first support 21, first connecting part 211, second support 22, second connecting part 221, expansion pot 3, decorative cover 6, magneto cover 7.

[0017] The embodiment is basically as shown in the drawings: Figure 3 An expansion pot assembly for an aero-engine, comprising an expansion pot 3 and a support frame 2. The support frame 2 comprises a first support 21 and a second support 22, the first support 21 is provided with a first connecting part 211 for connecting with an external fixing part, the second support 22 is provided with a second connecting part 221 for connecting with an external fixing part, and the first support 21 is detachably connected with the second support 22. In this embodiment, the external fixing part for connecting with the first support 21 and supporting the expansion pot assembly is a cylinder head water outlet flange seat 1, so that the first connecting part 211 is provided with a mounting hole for connecting with the cylinder head water outlet flange seat 1; the external fixing part for connecting with the second support 22 and supporting the expansion pot assembly is a magneto cover 7 and a decorative cover 6. In this embodiment, the first support 21 is connected with the second support 22 through bolts.

[0018] In this embodiment, the expansion pot 3 is connected with the first support 21, and the second support 22 is connected with the first support 21 at a position away from the first connecting part 211, and the second support 22 and the first connecting part 211 are respectively located on both sides of the expansion pot 3, so that the first support 21 and the second support 22 support the opposite sides of the expansion pot 3, which is conducive to improving the structural stability of the expansion pot assembly. In this embodiment, the second connecting part 221 has at least two non-coaxial connecting holes. In actual use, one of the two non-coaxial connecting holes is used for connecting with the magneto cover 7, and the other is used for connecting with the decorative cover 6.

[0019] The specific implementation process is as follows: when the aero-engine is in the offline test state, the expansion pot assembly is connected and fixed with the cylinder head water outlet flange seat 1 through the first support 21; at this time, the aero-engine is provided with an engine support, so that the second support 22 is separated from the first support 21, and the horse clamp is connected at the position on the first support 21 for connecting the second support 22, the horse clamp is connected with the engine support, so that the expansion pot assembly is supported and fixed. When the aero-engine is adjusted from the offline test state to the delivery state, the engine support of the aero-engine is removed, the horse clamp connected on the first support 21 is removed and then the second support 22 is reinstalled, so that the second support 22 is connected with the decorative cover 6 and the magneto cover 7, thereby realizing the adjustment of the expansion pot assembly from the offline test state to the delivery state without disassembling the existing fixed structure of the first support 21 and the expansion pot 3, and further avoiding the problems of repeated disassembly of the first support 21, the expansion pot 3 and the corresponding pipeline, which is easy to cause the expansion pot 3 to be damaged by knocking, shorten the service life of the pipeline and the like, and is also beneficial to shorten the modification time after the offline test of the aero-engine and improve the production efficiency.

[0020] The above is only an embodiment of the present application, and the specific structure and characteristics of the scheme and the like are not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application.

Claims

1. An expansion bottle assembly for an aeroengine comprising an expansion bottle and a support cage characterised in that: The support frame comprises a first support and a second support, the first support is provided with a first connecting part for connecting with an external fixing part, the second support is provided with a second connecting part for connecting with an external fixing part, and the first support is detachably connected with the second support.

2. The expansion pot assembly for an aero-engine according to claim 1, characterized in that: The expansion kettle is connected with the first support, the second support is arranged away from the first connecting part in the position connected with the first support, and the second support and the first connecting part are respectively located on two sides of the expansion kettle.

3. An expansion pot assembly for an aero-engine according to claim 2, wherein: The second connecting part has at least two non-coaxial connecting holes.

4. The expansion pot assembly of claim 3, wherein: The first support and the second support are connected through bolts.

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