A multifunctional casing for core machine assembly

Abstract

This invention discloses a multifunctional housing for core machine assembly, comprising a front support ring, a rear support ring, columns, and a rear positioning simulation shaft. The front and rear support rings are connected by multiple columns. The rear support ring is connected to the rear positioning simulation shaft by a locking screw. A disassembly screw is provided at the connection between the rear support ring and the rear positioning simulation shaft. During installation, the front and rear support rings are hoisted onto the high-pressure rotor, with the front support ring connected to the rear mounting edge of the intermediate housing, and the rear positioning simulation shaft assembled onto the rear journal of the high-pressure rotor. This multifunctional housing is suitable for core machine assembly, enabling functions such as high-pressure rotor stop and limit, axial movement measurement, press fitting, and disassembly, while ensuring high assembly quality and measurement accuracy, and is economical and efficient.

Description

Technical Field

[0001] This invention belongs to the field of core machine assembly technology and relates to a multifunctional casing for core machine assembly. Background Technology

[0002] During the assembly of a certain core component, it is necessary to complete the high-pressure rotor's stop and limit functions, axial movement measurement, and stable press-fitting. When assembly problems occur or after trial runs, the high-pressure rotor needs to be disassembled. Traditional techniques employ methods such as simulating drive shaft stop, measuring non-centering axial movement, and high-stress single-point disassembly. The disadvantages of this method are poor manufacturability, high operational difficulty, low safety factor, high quality risk, and difficulty in guaranteeing assembly efficiency. On the one hand, when using a simulated drive shaft stop, due to single-point force application, under high torque tightening force limiting conditions, the high-pressure rotor is prone to slight misalignment, leading to force limiting distortion and even rotor damage. On the other hand, when the engine is in a vertical position, operators need to complete the tightening or disassembly of the high-pressure rotor's 6-shaft end nuts in a confined space. The operating space is limited, tightening efficiency is low, and multiple people are generally required to complete the task. In addition, because the high-pressure rotor and the front bearing cavity have a large interference fit, forced dragging and disassembly will result in a sudden release of stress, causing the high-pressure rotor to spring up, which can easily damage parts. Moreover, because no effective centering measures are taken when measuring the axial movement of the high-pressure rotor, the risk of introducing measurement errors due to improper operation is high. Summary of the Invention

[0003] To address the problems existing in the prior art, the purpose of this invention is to provide a multifunctional housing for high-pressure rotor stop and limit, axial movement measurement, press fitting, and disassembly in core machine assembly. This housing can effectively improve the assembly quality of the core machine, reduce operational intensity, and improve assembly efficiency and safety.

[0004] This invention is achieved through the following technical solution:

[0005] A multi-functional casing for core engine assembly, comprising,

[0006] Front support ring, rear support ring, rear positioning simulation shaft and column;

[0007] The front support ring and the rear support ring are connected by multiple columns; the rear support ring is connected to the rear positioning simulation shaft by a pressure-relief screw; a disassembly screw is provided at the connection between the rear support ring and the rear positioning simulation shaft; during installation, the front support ring and the rear support ring are hoisted onto the high-pressure rotor, the front support ring is connected to the rear mounting edge of the intermediate housing, and the rear positioning simulation shaft is assembled on the rear journal of the high-pressure rotor.

[0008] Preferably, the rear positioning simulation shaft is fastened to the rear journal of the high-pressure rotor by a bolt and nut assembly.

[0009] Preferably, the front support ring is connected to the rear mounting edge of the intermediate housing via a bolt and nut assembly.

[0010] Preferably, the rear positioning simulation shaft is provided with a through hole for installing a pressure-relief screw, and the rear support ring is provided with a threaded hole for installing a pressure-relief screw.

[0011] Preferably, the rear positioning simulation shaft is provided with a threaded hole for installing the disassembly screw, and the rear support ring is provided with a through hole for installing the disassembly screw.

[0012] Preferably, the column has a circular structure.

[0013] Preferably, the front mounting edge of the intermediate housing is equipped with a power-saving support and an adapter wrench.

[0014] Preferably, when horizontally tightening the shaft end nut, the high-pressure rotor is adjusted to a horizontal state, and a force-saving device and a torque wrench are used to complete the tightening force limit of the high-pressure rotor shaft end nut with the support of the force-saving device and the assistance of the adapter wrench, so as to realize the conversion of the high torque limit of the high-pressure rotor shaft end nut from the vertical state to the horizontal state.

[0015] Preferably, when measuring the axial movement of the high-pressure rotor, the high-pressure rotor is adjusted to a vertical state by disassembling the force-saving support and the adapter wrench, maintaining the contact state between the pressure-stopping screw and the through hole of the rear positioning simulation shaft and the surface contact state between the rear positioning simulation shaft and the rear support ring, ensuring the circumferential centering function of the high-pressure rotor, and installing a lever dial indicator on the front journal of the high-pressure rotor to realize the measurement of the axial movement of the high-pressure rotor.

[0016] Preferably, when pressing the high-pressure rotor, the high-pressure rotor is adjusted to a vertical position, the pressure-stopping screw is unscrewed and is higher than the end face of the rear positioning simulation shaft, and the pressure-stopping screw is tightened to apply forward axial pressure to the rear positioning simulation shaft and the high-pressure rotor to complete the pressing of the high-pressure rotor.

[0017] When performing low-stress decomposition on the high-voltage rotor, adjust the high-voltage rotor to a vertical position, install the decomposition screws, and apply force to the decomposition screws to achieve low-stress decomposition of the high-voltage rotor.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] This invention discloses a multifunctional housing for core machine assembly, comprising a front support ring, a rear support ring, columns, and a rear positioning simulation shaft. The front and rear support rings are connected by multiple columns. The rear support ring is connected to the rear positioning simulation shaft by a pressure-locking screw. A disassembly screw is provided at the connection between the rear support ring and the rear positioning simulation shaft. During installation, the front and rear support rings are hoisted onto the high-pressure rotor, the front support ring is connected to the rear mounting edge of the intermediate housing, and the rear positioning simulation shaft is assembled onto the rear journal of the high-pressure rotor. This multifunctional housing can simultaneously perform functions such as high-pressure rotor stop and limit, axial movement measurement, stable press fitting, and low-stress decomposition. It achieves a breakthrough in the high-torque limit force of the high-pressure rotor shaft end nut from a vertical state to a horizontal state, making operation convenient, safe, and efficient. It can effectively improve the assembly quality and measurement accuracy of the core machine, and is economical and efficient.

[0020] Furthermore, the multifunctional casing of this invention can take into account both the stopping and limiting of the high-pressure rotor. At the same time, with the help of the force-saving device support and the design of the adapter wrench, it realizes for the first time the conversion of the high-pressure rotor shaft end nut from vertical tightening force limiting to horizontal tightening force limiting, and completely solves the problem of high torque force limiting of the core machine high-pressure rotor.

[0021] Furthermore, by adjusting the screwing depth and orientation of the pressure-retaining screw and the disassembly screw, and with the aid of a double-stage support ring centering design, this invention can achieve high-precision measurement, stable pressing, and safe and efficient disassembly of the high-pressure rotor's axial movement. This multi-functional casing can effectively reduce operational intensity, improve assembly efficiency and safety, and enhance the assembly quality of the core machine. Attached Figure Description

[0022] Figure 1 Design drawing of the multi-functional casing and high-voltage rotor assembly structure;

[0023] Figure 2 This is an assembly plan view of the multi-functional casing and the high-voltage rotor;

[0024] Figure 3 This is a schematic diagram of the multi-functional casing;

[0025] Figure 4 The following diagrams show the assembly relationship between the disassembled screw and the pressure-retaining screw: Figure (a) is the assembly diagram of the pressure-retaining screw, Figure (b) is the assembly diagram of the disassembled screw, and Figure (c) is the assembly plan view of the disassembled screw and the pressure-retaining screw.

[0026] Figure 5 A diagram of the simulated shaft structure for back-end positioning;

[0027] Figure 6 Schematic diagram for measuring the axial movement of a high-pressure rotor;

[0028] Figure 7 Schematic diagram of high-pressure rotor stable pressing assembly;

[0029] Figure 8 Schematic diagram of low-stress decomposition of high-pressure rotor;

[0030] In the diagram: 1-Double-stage support ring, 101-Front support ring, 102-Rear support ring, 2-Rear end positioning simulation shaft, 3-Column, 4-Pressure-stopping screw, 5-Disassembly screw, 6-High-pressure rotor, 7-Intermediate casing, 8-Energy-saving device support, 9-Adaptor wrench, 10-Through hole, 11-Threaded hole. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to specific embodiments. These descriptions are for explanation purposes only and are not intended to limit the scope of the invention.

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0033] The purpose of this invention is to provide a multifunctional housing for the high-pressure rotor 6 of the core machine assembly, which includes stop and limit, axial movement measurement, press fitting, and disassembly. This housing can effectively improve the assembly quality of the core machine, reduce the intensity of operation, and improve assembly efficiency and safety.

[0034] The purpose of this multi-functional housing is achieved through the following steps:

[0035] 1. Design of a multi-functional casing scheme for core machine assembly

[0036] Based on the assembly, measurement and disassembly requirements of the high-pressure rotor 6 of the core machine, a lightweight multi-functional casing solution is designed for the high-pressure rotor 6 for stop and limit, axial movement centering measurement, stable pressing and low-stress high-efficiency disassembly.

[0037] 2. Manufacture a multi-functional casing for core machine assembly.

[0038] like Figure 1 As shown, based on the structural characteristics of the core machine's high-pressure rotor 6 and intermediate casing 7, a multi-functional casing for core machine assembly is manufactured, consisting of a double-stage support ring 1, a rear-end positioning simulation shaft 2, a circularly connected column 3, pressure-relief screws 4, and disassembly screws 5. The structure of the multi-functional casing is shown in [reference needed]. Figure 2 and Figure 3The front support ring 101 and the rear support ring 102 are connected by multiple columns 3; the rear support ring 102 is connected to the rear positioning simulation shaft 2 by pressure-relief screws 4; a disassembly screw 5 is provided at the connection between the rear support ring 102 and the rear positioning simulation shaft 2; during installation, the front support ring 101 and the rear support ring 102 are hoisted onto the high-pressure rotor 6, the front support ring 101 is connected to the rear mounting edge of the intermediate casing 7, and the rear positioning simulation shaft 2 is assembled on the rear journal of the high-pressure rotor 6. Both the pressure-relief screw 4 and the disassembly screw 5 are countersunk screws, and they are alternately installed circumferentially along the rear support ring 102 and the rear positioning simulation shaft 2 during assembly. Figure 5 As shown, the rear positioning simulation shaft 2 has a cylindrical structure, and threaded holes and through holes for fixed installation are provided on the end face extending from one side edge of the rear positioning simulation shaft 2.

[0039] like Figure 4 As shown, the pressure relief screw 4 is designed with a threaded hole 11 at the installation position of the rear support ring 102, and a through hole 10 at the installation position of the rear positioning simulation shaft 2; the disassembly screw 5 is designed with a through hole 10 at the installation position of the rear support ring 102, and a threaded hole 11 at the installation position of the rear positioning simulation shaft 2.

[0040] 3. Equipped with a multi-functional housing

[0041] The rear positioning simulation shaft 2 is assembled onto the rear journal of the high-pressure rotor 6 and secured with bolts and nuts; the front and rear support rings 102 are connected together using a circular connecting column 3; subsequently, the double-stage support ring is hoisted onto the high-pressure rotor 6, and the front support ring 101 is connected to the rear mounting edge of the intermediate housing 7 using bolts and nuts; the rear support ring 102 is connected to the rear positioning simulation shaft 2 using pressure-relief screws 4. (See...) Figure 2 .

[0042] 4. The stop limit of the high-pressure rotor 6 of the core machine and the horizontal tightening of the shaft end nut.

[0043] like Figure 1 As shown, the high-pressure rotor 6 is fixed to the multi-functional housing via the rear positioning simulation shaft 2, and the multi-functional housing is fixed to the intermediate housing 7, which realizes the stopping and limiting of the high-pressure rotor 6, and can ensure the feasibility and safety of the high-pressure rotor 6 in attitude adjustment.

[0044] A multi-degree-of-freedom device is used to adjust the high-pressure rotor 6 from a vertical to a horizontal position. An energy-saving device support 8 is mounted on the front mounting side of the intermediate housing 7 to secure the energy-saving device, and an adapter wrench 9 is used to assist the adapter wrench 9. When the shaft end nut cannot be directly tightened, the position is unreachable, requiring the adapter wrench 9 to be turned out, and then a torque multiplier is used to apply torque to the torque wrench for tightening. The energy-saving device support 8 is fixedly mounted on the front mounting side of the intermediate housing 7 using a bolt and nut assembly, and the adapter wrench 9 is fixedly mounted on the energy-saving device support 8.

[0045] In use, the force-saving device can be fixed using the force-saving device support 8. The end of the force-saving device is connected to the square hole in the middle of the adapter wrench 9. Then, the torque wrench is used to tighten the nut at the shaft end of the high-pressure rotor 6, thus converting the high torque limit of the nut at the shaft end of the high-pressure rotor 6 from a vertical to a horizontal state. This operation is simple and efficient, while saving labor costs. The diagram illustrates the stop limit of the high-pressure rotor 6 and the horizontal tightening of the nut at the shaft end.

[0046] 5. Measurement of axial movement of the high-pressure rotor 6 of the core unit

[0047] like Figure 6 As shown, the force-saving device support 8 and the adapter wrench 9 are disassembled. The high-pressure rotor 6 is adjusted from a horizontal state to a vertical state using a multi-degree-of-freedom device. The pressure-stopping screw 4 is kept in contact with the through hole of the rear positioning simulation shaft 2, and the rear positioning simulation shaft 2 is kept in contact with the rear support ring 102 to ensure the circumferential centering function of the high-pressure rotor 6. Then, a lever dial indicator is installed on the front journal of the high-pressure rotor 6. By applying a certain load in the counter-clockwise direction along the core machine axis, the change of the lever dial indicator can be observed to measure the axial movement of the high-pressure rotor 6.

[0048] 6. Core unit high-pressure rotor 6 press-fit

[0049] like Figure 7 As shown, adjust the high-pressure rotor 6 to a vertical position and assemble the multi-functional housing. Unscrew the pressure-retaining screw 4, slightly higher than the end face of the rear positioning simulation shaft 2; then rotate the high-pressure rotor 6 together with the rear positioning simulation shaft 2 by 15°, avoiding the through hole on the rear positioning simulation shaft 2; tighten the pressure-retaining screw 4 evenly to apply forward axial pressure to the rear positioning simulation shaft 2 and the high-pressure rotor 6, completing the press-fitting of the high-pressure rotor 6. Schematic diagram of the press-fitting of the core machine high-pressure rotor 6.

[0050] 7. Low-stress decomposition of the high-pressure rotor 6 of the core machine

[0051] like Figure 8 As shown, adjust the high-pressure rotor 6 to a vertical position and assemble the multi-functional housing. Keep the bolts and nuts connecting the rear positioning simulation shaft 2 and the rear journal tightened; only install the disassembly screw 5, apply force evenly to the point, and slowly screw in the disassembly screw 5 to achieve low-stress safe disassembly of the high-pressure rotor 6;

[0052] The advantages of this multi-functional housing are: it can simultaneously handle the stopping and limiting of the high-pressure rotor 6; and, thanks to the labor-saving support 8 and the adapter wrench 9 design, it achieves for the first time the conversion of the high-pressure rotor 6 shaft end nut from vertical tightening force limiting to horizontal tightening force limiting, completely solving the problem of high torque force limiting for the core machine's high-pressure rotor 6. By adjusting the tightening depth and orientation of the pressure-retaining screw 4 and the disassembly screw 5, and with the auxiliary centering design of the double-stage support ring, high-precision measurement, stable pressing, and safe and efficient disassembly of the high-pressure rotor 6 axial movement can be achieved. This multi-functional housing can effectively reduce operational intensity, improve assembly efficiency and safety, and improve the assembly quality of the core machine.

[0053] Example 1

[0054] The specific steps for a multi-functional casing used in core engine assembly are as follows:

[0055] 1. Multifunctional casing structure and functional design

[0056] The rear mounting edge of the intermediate casing 7 and the rear journal of the high-pressure rotor 6 are selected as the stopping sections, and an integrated ring structure design is adopted. Simultaneously, considering weight reduction requirements, the traditional enclosed casing structure is abandoned, and a design with multiple circular columns 3 is used to connect the front and rear support rings 102, significantly reducing manufacturing costs. The front positioning support ring connects to the rear mounting edge of the intermediate casing 7 and serves as the main support ring; a rear positioning simulation shaft 2 is designed to cleverly achieve the transition between the rear support ring 102 and the rear journal, while also providing centering functionality; the combination of threaded holes and through holes simultaneously satisfies the functions of stopping the high-pressure rotor 6, measuring axial movement, press-fitting, and disassembly. With the help of a force-saving support 8 and an adapter wrench 9, the high-torque horizontal tightening of the nut at the shaft end of the high-pressure rotor 6 can be achieved.

[0057] 2. Assembly of the multi-functional casing

[0058] The rear positioning simulation shaft 2 is assembled on the rear journal of the high-pressure rotor 6 and secured with bolts and nuts; the front and rear support rings 102 are connected together using a circular connecting column 3; then the double-stage support ring is hoisted onto the high-pressure rotor 6, the front support ring 101 is connected to the rear mounting edge of the intermediate housing 7 using bolts and nuts, and the rear support ring 102 is connected to the rear positioning simulation shaft 2 using a pressure-relief screw 4.

[0059] The high-pressure rotor 6 is adjusted from a vertical to a horizontal state using a multi-degree-of-freedom device, and a side-mounted force-saving support 8 and an adapter wrench 9 are installed in front of the intermediate casing 7.

[0060] 3. Functional implementation of the multi-functional housing

[0061] Using a force-saving device and a torque wrench, the tightening force of the nut at the end of the high-pressure rotor 6 shaft can be limited by the stop limit of the double-stage support ring 1 and the rear positioning simulation shaft 2, thus realizing the conversion of the large torque limit of the nut at the end of the high-pressure rotor 6 shaft from the vertical state to the horizontal state.

[0062] Disassemble the force-saving support 8 and the adapter wrench 9, and use a multi-degree-of-freedom device to adjust the high-pressure rotor 6 from a horizontal state to a vertical state, maintaining the surface contact state between the pressure-stopping screw 4 and the through hole of the rear positioning simulation shaft 2, and between the rear positioning simulation shaft 2 and the rear support ring 102, to ensure the circumferential centering function of the high-pressure rotor 6; then install a lever dial indicator on the front journal of the high-pressure rotor 6, and by applying a certain load in the counter-clockwise direction along the core machine axis, observe the change of the lever dial indicator to measure the axial movement of the high-pressure rotor 6.

[0063] Adjust the high-pressure rotor 6 to a vertical position and assemble the multi-functional housing. Unscrew the pressure-retaining screw 4, slightly higher than the end face of the rear positioning simulation shaft 2; then rotate the high-pressure rotor 6 together with the rear positioning simulation shaft 2 by 15° to avoid the through hole on the rear positioning simulation shaft 2; tighten the pressure-retaining screw 4 evenly to apply forward axial pressure to the rear positioning simulation shaft 2 and the high-pressure rotor 6, thus completing the press-fitting of the high-pressure rotor 6.

[0064] Adjust the high-pressure rotor 6 to a vertical position and assemble the multi-functional housing. Keep the bolts and nuts connecting the rear positioning simulation shaft 2 and the rear journal tightened; only install the disassembly screw 5, apply force evenly to the point, and slowly screw in the disassembly screw 5 to achieve low-stress safe disassembly of the high-pressure rotor 6.

[0065] This multi-functional housing can accommodate functions such as stop and limit of the high-pressure rotor 6 of the core machine, axial movement measurement, stable pressing, and low stress decomposition. It has achieved a breakthrough in tightening the high torque limit of the high-pressure rotor 6 shaft end nut from the vertical state to the horizontal state. It is convenient to operate, safe and efficient, and can effectively improve the assembly quality of the core machine.

[0066] It should be noted that the terms "before," "after," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0067] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be in a centered component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may also be in a centered component. When a component is said to be "set to" another component, it can be directly set on the other component or it may also be in a centered component.

[0068] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A multi-functional cabinet for core machine assembly, characterized by, include, Front support ring (101), rear support ring (102), rear positioning simulation shaft (2) and column (3); The front support ring (101) and the rear support ring (102) are connected by multiple columns (3); the rear support ring (102) is connected to the rear positioning simulation shaft (2) by a pressure-stopping screw (4); a disassembly screw (5) is provided at the connection between the rear support ring (102) and the rear positioning simulation shaft (2); during installation, the front support ring (101) and the rear support ring (102) are hoisted onto the high-pressure rotor (6), the front support ring (101) is connected to the rear mounting edge of the intermediate casing (7), and the rear positioning simulation shaft (2) is assembled on the rear journal of the high-pressure rotor (6); The rear positioning simulation shaft (2) is provided with a through hole (10) for installing a pressure-stopping screw (4), and the rear support ring (102) is provided with a threaded hole (11) for installing a pressure-stopping screw (4). The front mounting edge of the intermediate housing (7) is equipped with a power-saving support (8) and an adapter wrench (9). When tightening the shaft end nut horizontally, the high-pressure rotor (6) is adjusted to a horizontal state. The tightening force of the high-pressure rotor (6) shaft end nut is completed with the assistance of the force-saving device support (8) and the adapter wrench (9), so as to realize the conversion of the high torque limit of the high-pressure rotor (6) shaft end nut from the vertical state to the horizontal state. When measuring the axial movement of the high-pressure rotor (6), the high-pressure rotor (6) is adjusted to a vertical state by disassembling the power-saving device and the adapter wrench (9), and the pressure-stopping screw (4) is kept in contact with the through hole of the rear positioning simulation shaft (2) and the rear positioning simulation shaft (2) and the rear support ring (102) to ensure the circumferential centering function of the high-pressure rotor (6). A lever dial indicator is installed on the front journal of the high-pressure rotor (6) to realize the measurement of the axial movement of the high-pressure rotor (6). When pressing the high-pressure rotor (6), adjust the high-pressure rotor (6) to a vertical position, unscrew the pressure-stopping screw (4) and make it higher than the end face of the rear positioning simulation shaft (2), then rotate the high-pressure rotor (6) together with the rear positioning simulation shaft (2) to avoid the through hole on the rear positioning simulation shaft (2), tighten the pressure-stopping screw (4) to apply forward axial pressure to the rear positioning simulation shaft (2) and the high-pressure rotor (6) to complete the pressing of the high-pressure rotor (6); When performing low-stress decomposition on the high-pressure rotor (6), adjust the high-pressure rotor (6) to a vertical position, install the decomposition screw (5), apply force to the decomposition screw (5), and achieve low-stress decomposition on the high-pressure rotor (6).

2. A multi-functional casing for core machine assembly according to claim 1, characterized in that, The rear positioning simulation shaft (2) and the rear journal of the high-pressure rotor (6) are fastened together by a bolt and nut assembly.

3. A multi-functional casing for core machine assembly according to claim 1, characterized in that, The front support ring (101) is connected to the rear mounting edge of the intermediate housing (7) by a bolt and nut assembly.

4. A multi-functional casing for core machine assembly according to claim 1, characterized in that, The rear positioning simulation shaft (2) is provided with a threaded hole (11) for installing the disassembly screw (5), and the rear support ring (102) is provided with a through hole (10) for installing the disassembly screw (5).

5. A multi-functional casing for core machine assembly according to claim 1, characterized in that, The column (3) is a circular structure.

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