Blade assembly structure and guide

Abstract

The application discloses a kind of vane assembly structure and guider, it is related to vane assembly field.Vane assembly structure includes first support, second support, guide vane, adapter plate and locking piece;Multiple guide vanes and multiple adapter plates are respectively annularly spliced combination settings, each guide vane is arranged between the inner circumferential side of first support and the outer circumferential side of second support.Guide vane is assembled on first support and second support by locking piece and adapter plate;Adapter plate has installation side and adapter side, adapter side extends and is provided with guide vane, to be fixedly connected with first support, the installation side of second support and adapter plate is fixedly connected by the locking end of locking piece, to press the joint of guide vane between adapter plate and first support, to realize the assembly of guide vane.The application can well take into account the assembly and stability of guide vane, and its assembly efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of blade assembly, and more specifically to a blade assembly structure and guide. Background Technology

[0002] The casing structure of an aero-engine mainly includes the casing, an inner ring spaced apart inside the casing, and multiple blades distributed circumferentially. The tip of each blade is connected to the casing, and the root of the blade is connected to the inner ring.

[0003] During operation, the blades of an aero-engine are subject to centrifugal force, aerodynamic forces generated by air combustion, thermal stress, alternating force, random loads, etc., making them highly susceptible to high-cycle fatigue and thermal fatigue. Therefore, the selection of materials, production design, and assembly structure of the blades have extremely high requirements.

[0004] Guide vanes are typically made of metal, which offers high strength and convenient connection and adjustment. Currently, to overcome the high-temperature environment in aero engines, ceramic matrix composite guide vanes can be used. However, if existing ceramic matrix composite guide vanes are designed based on the original assembly structure of metal guide vanes, the ceramic matrix guide vanes will not only have a complex structure leading to manufacturing difficulties, but also be difficult to assemble successfully due to the difficulty in ensuring precision, requiring repeated polishing of the guide vanes. Furthermore, due to the instability of material processing, if the structure of the ceramic matrix guide vanes is too complex, it will produce more manufacturing defects, leading to a reduction in the overall structural reliability. Summary of the Invention

[0005] To address the technical problems mentioned in the background section, the present invention provides a blade assembly structure, comprising:

[0006] First support;

[0007] The second support is spaced out within the first support;

[0008] Multiple guide vanes are arranged in a ring-shaped splicing combination, and each guide vane is disposed between the inner peripheral side of the first bracket and the outer peripheral side of the second bracket;

[0009] Multiple adapter plates are arranged in a ring-shaped splicing combination. The adapter plates and the guide vanes are correspondingly arranged. The adapter plates are correspondingly sleeved and installed in the guide vanes. The adapter plates have an installation side and an adapter side. The adapter side extends through the guide vanes to be fixedly connected to the first bracket. The side of the guide vanes away from the second bracket is limited and connected to the first bracket. The side of the guide vanes close to the second bracket is connected to the installation side.

[0010] The system includes multiple locking components, which are circumferentially distributed along the axis of the annular structure formed by the combination of multiple guide vanes. The locking end of each locking component is adapted to fix the mounting side of the second bracket and the adapter plate to press the guide vanes between the adapter plate and the first bracket.

[0011] Optionally, the adapter plate includes a wing, a column, and a connecting portion. The column and the connecting portion are respectively disposed on opposite sides of the wing. One side of the wing is connected to the side of the guide vane facing the second bracket, and the other side of the wing is connected to the outer periphery of the second bracket. The column extends through the guide vane to be fixedly connected to the first bracket. The connecting portion is disposed on the side of the wing facing the second bracket, and the connecting portion and the locking member are correspondingly fixedly connected.

[0012] Optionally, the guide vane includes a first plate, a second plate, and a hollow portion. The first plate is positioned on the inner periphery of the first support. The second plate and the wing portion are connected on the side away from the second support. The hollow portion is constructed on the wall surface facing the first plate and the second plate. The column portion is positioned and connected to the hollow portion. The column portion extends through the hollow portion.

[0013] Optionally, the first bracket is provided with a positioning part, and the end of the column portion away from the wing portion is limited and connected to the positioning part, and the positioning part is configured to conformally correspond to the end of the column portion away from the wing portion.

[0014] Optionally, the column portion includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion extending in the same direction, the first connecting portion extending through the hollow portion to connect to the positioning portion, the second connecting portion extending and being assembled inside the hollow portion, and the outer wall surface of any connecting portion being in limiting contact with the inner wall surface of the hollow portion.

[0015] Optionally, the first bracket is provided with a flange structure, the flange structure including an outer flange and an inner flange spaced apart, the first bracket is configured as a rotating body structure, any flange extends along the axial direction of the first bracket, the inner flange is disposed on the inner circumferential side of the outer flange, and a receiving portion suitable for accommodating at least a portion of the outer edge of the guide vane is disposed between the outer flange and the inner flange; and / or

[0016] The second plate and the wing are aligned and flush on the radial plane of the first bracket.

[0017] Optionally, the first bracket is provided with a first stop structure, which is formed on the flange structure, and the guide vane is provided with a second stop structure, which is formed on the outer edge of the guide vane. The guide vane and the first bracket are connected by limiting each other through the corresponding conformally provided first stop structure and second stop structure.

[0018] Optionally, the first stop structure includes a first male stop and a first female stop, the first male stop and the first female stop are arranged alternately along the circumferential direction of the first bracket, and a step difference is provided between the first male stop and the first female stop;

[0019] The second stop structure includes a second male stop and a second female stop. The second male stop and the second female stop are disposed on the same guide vane. The second male stop and the second female stop are staggered along the circumferential direction of the first bracket. The second male stop and the first female stop are conformally corresponding. The second female stop and the first male stop are conformally corresponding.

[0020] A clearance connection portion is provided between the second male stop and the second female stop, and the connection portion is adapted to connect with the inner flange extending along the axial direction of the first bracket;

[0021] The second male stop and the second female stop abut against the inner side of the outer flange on the side away from the first plate body, and the receiving portion is adapted to receive the thickness of the second male stop and the second female stop in the radial direction of the first bracket.

[0022] Optionally, two outer flanges are provided, and the two outer flanges are respectively provided on the inlet side and outlet side of the guide vane. The two outer flanges are raised in the radial direction of the first bracket, and an annular groove is formed on the outer peripheral side of the first bracket. The end of the column portion away from the second bracket is provided in the annular groove.

[0023] Optionally, the second bracket includes a support body and an assembly body fixedly connected to each other. The support body extends along the axial direction of the first bracket, and the assembly body extends along the radial direction of the first bracket. A plurality of connecting portions are circumferentially spliced ​​and surround the outer periphery of the support body. The connecting portions are abutted on the side of the assembly body adjacent to the outlet side of the guide vane. The locking end of the locking member is adapted to pass through and lock the connecting portions and the assembly body.

[0024] Optionally, the hollow portion is configured as a crescent-shaped groove structure or a U-shaped groove structure.

[0025] Optionally, the first bracket, the second bracket, and the adapter plate are made of metal, and the guide vane is made of ceramic.

[0026] A guide includes the blade assembly structure described above.

[0027] The technical solution provided by this invention has the following advantages:

[0028] The blade assembly structure provided by the present invention includes a first bracket, a second bracket, guide blades, an adapter plate, and a locking member. The second bracket is spaced out within the first bracket. Multiple guide blades and multiple adapter plates are respectively arranged in a ring-shaped splicing combination. Each guide blade is arranged between the inner circumference of the first bracket and the outer circumference of the second bracket. The adapter plate and the guide blade are correspondingly arranged, and the adapter plate is correspondingly sleeved and installed in the guide blade.

[0029] This blade assembly structure uses a locking member and an adapter plate to assemble guide blades onto a first and a second bracket. The adapter plate has a mounting side and a connecting side. The connecting side extends through the guide blade to be fixedly connected to the first bracket. The mounting side is connected to the second bracket via the locking member. The side of the guide blade away from the second bracket is connected to the first bracket for a limiting connection, while the side of the guide blade closer to the second bracket is connected to the mounting side. The locking end of the locking member fixes the second bracket and the mounting side of the adapter plate, pressing the guide blade between the adapter plate and the first bracket, thereby achieving the assembly of the guide blade. This invention effectively balances the assemblability and stability of the guide blade, resulting in high assembly efficiency. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 A schematic diagram of the blade assembly structure provided by the present invention;

[0032] Figure 2 This is a schematic diagram of the connection of the adapter plate in the blade assembly structure provided by the present invention.

[0033] Figure 3 A partial structural schematic diagram of the blade assembly structure provided by the present invention;

[0034] Figure 4 A schematic diagram of the first and second supports in the blade assembly structure provided by the present invention;

[0035] Figure 5 A three-dimensional schematic diagram of the first support in the blade assembly structure provided by the present invention;

[0036] Figure 6 This is a schematic diagram of the structure of the first support in the blade assembly structure provided by the present invention;

[0037] Figure 7 This is a schematic diagram of the first support in the blade assembly structure provided by the present invention;

[0038] Figure 8 This is a schematic diagram of the second support in the blade assembly structure provided by the present invention;

[0039] Figure 9 This is an assembly diagram of two exemplary guide vanes in the blade assembly structure provided by the present invention;

[0040] Figure 10 This is a schematic diagram of the transition plate in the blade assembly structure provided by the present invention;

[0041] Figure 11 A three-dimensional schematic diagram of the adapter plate in the blade assembly structure provided by the present invention;

[0042] Explanation of reference numerals in the attached figures:

[0043] 1-First support; 11-Flange structure; 111-Outer flange; 112-Inner flange; 113-Annular groove; 12-First stop structure; 121-First male stop; 122-First female stop; 13-Positioning part; 14-Receiving part;

[0044] 2-Second bracket; 21-Support body; 22-Assembly body; 221-Assembly hole;

[0045] 3-Guide blade; 31-First plate; 32-Second plate; 33-Hollow section; 34-Second stop structure; 341-Second male stop; 342-Second female stop; 35-Connecting part;

[0046] 4-Adapter plate; 41-Wing; 42-Column; 421-First connecting part; 422-Second connecting part; 43-Connecting part; 431-Connecting hole;

[0047] 5-Locking component. Detailed Implementation

[0048] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0052] Example 1

[0053] This embodiment provides a blade assembly structure, such as Figures 1 to 11 As shown, the assembly structure includes a first bracket 1, a second bracket 2, guide vanes 3, adapter plates 4, and locking components 5. The second bracket 2 is spaced out within the first bracket 1. Multiple guide vanes 3 and multiple adapter plates 4 are respectively arranged in a ring-shaped splicing combination. Each guide vane 3 is located between the inner circumference of the first bracket 1 and the outer circumference of the second bracket 2. The adapter plates 4 and guide vanes 3 are correspondingly arranged, and the adapter plates 4 are correspondingly sleeved and installed within the guide vanes 3.

[0054] For the assembly between the first bracket 1 and the guide vane 3, the first bracket 1 is provided with a flange structure 11. The flange structure 11 includes an outer flange 111 and an inner flange 112 that are spaced apart. Either flange extends along the axial direction of the first bracket 1, and the inner flange 112 is provided on the inner circumferential side of the outer flange 111.

[0055] See Figures 5 to 7 , Figure 9The first support 1 is provided with a first stop structure 12, which is formed on the flange structure 11. The guide blade 3 is provided with a second stop structure 34, which is formed on the outer edge of the guide blade 3. The guide blade 3 and the first support 1 are connected by limiting each other through the corresponding conformally provided first stop structure 12 and second stop structure 34. Specifically, the first stop structure 12 includes a first male stop 121 and a first female stop 122, which are staggered along the circumferential direction of the first support 1, and a step difference is provided between the first male stop 121 and the first female stop 122; the second stop structure 34 includes a second male stop 341 and a second female stop 342, which are disposed on the same guide vane 3, and are staggered along the circumferential direction of the first support 1. The second male stop 341 and the first female stop 122 are conformally corresponding, and the second female stop 342 and the first male stop 121 are conformally corresponding.

[0056] In some implementations, see Figures 5 to 7 A receiving portion 14 is disposed between the outer flange 111 and the inner flange 112 to accommodate at least a portion of the outer edge of the guide vane 3. The side of the second male stop 341 and the second female stop 342 away from the first plate 31 abuts against the inner side of the outer flange 111, and the receiving portion 14 is adapted to accommodate the thickness of the second male stop 341 and the second female stop 342 in the radial direction of the first support 1.

[0057] In some implementations, see Figure 9 A clearance connection portion 35 is provided between the second male stop 341 and the second female stop 342. The connection portion 35 is adapted to connect with the inner flange 112 extending along the axial direction of the first bracket 1. The second male stop 341 and the second female stop 342 are respectively provided to protrude from the first plate 31, and the connection portion 35 is configured as a groove.

[0058] In some implementations, see Figure 6 and Figure 7 There are two outer flanges 111, which are respectively set on the inlet side and outlet side of the guide vane 3. The two outer flanges 111 are raised in the radial direction of the first support 1. The two outer flanges 111 have annular grooves 113 on the outer periphery of the first support 1. The end of the column part 42 away from the second support 2 is set in the annular groove 113.

[0059] In some implementations, see Figure 8The second bracket 2 includes a support body 21 and an assembly body 22 fixedly connected to each other. The support body 21 extends along the axial direction of the first bracket 1, and the assembly body 22 extends along the radial direction of the first bracket 1. Multiple connecting portions 43 are circumferentially joined and abut against the outer periphery of the support body 21. The connecting portions 43 abut against the side of the assembly body 22 adjacent to the outlet side of the guide vane 3. The locking end of the locking member 5 is adapted to pass through the locking connecting portion 43 and the assembly body 22. The assembly body 22 has multiple circumferentially distributed assembly holes 221 for connecting the locking member 5. The assembly holes 221 can be inserted into the assembly body 22.

[0060] In this embodiment, the adapter plate 4 has an installation side and an adapter side. The adapter side extends through the guide vane 3 to be fixedly connected to the first bracket 1. The side of the guide vane 3 away from the second bracket 2 is limitedly connected to the first bracket 1, and the side of the guide vane 3 close to the second bracket 2 is connected to the installation side.

[0061] See Figure 1 The locking element 5 is arranged circumferentially along the axis of the annular structure formed by the combination of multiple guide vanes 3. The locking end of the locking element 5 is suitable for fixing the mounting side of the second bracket 2 and the adapter plate 4 to press the guide vane 3 between the adapter plate 4 and the first bracket 1.

[0062] The blade assembly structure provided in this embodiment assembles the guide blade 3 onto the first bracket 1 and the second bracket 2 via the locking member 5 and the adapter plate 4. The adapter plate 4 has an installation side and an adapter side. The adapter side extends through the guide blade 3 to be fixedly connected to the first bracket 1. The installation side is connected to the second bracket 2 via the locking member 5. The side of the guide blade 3 away from the second bracket 2 is limitedly connected to the first bracket 1, and the side of the guide blade 3 close to the second bracket 2 is connected to the installation side. The locking end of the locking member 5 is used to fix the second bracket 2 and the installation side of the adapter plate 4 to press the guide blade 3 between the adapter plate 4 and the first bracket 1, thereby realizing the assembly of the guide blade 3.

[0063] In this embodiment, see Figure 1 The guide vane 3, the adapter plate 4, and the locking element 5 together form an assembly unit, and multiple assembly units are spliced ​​together in a ring around the outside of the second bracket 2. The first bracket 1 and the second bracket 2 are both configured as rotating structures. When the guide vane 3 or the adapter plate 4 of a single assembly unit is damaged, the structure can be quickly disassembled to repair and replace the individual guide vane 3, resulting in low maintenance costs. In one specific embodiment, 19 assembly units are provided.

[0064] In this embodiment, the first support 1, the second support 2, and the adapter plate 4 are made of metal, while the guide vane 3 is made of ceramic. The first support 1, the second support 2, and the adapter plate 4 form a metal frame, and the guide vane 3 is specifically made of ceramic matrix composite material, which has a low coefficient of thermal expansion. Under high-temperature conditions, the ceramic matrix composite material exhibits small thermal deformation and lower thermal stress. The guide vane 3 and the adapter plate 4 are positioned by the hollow part 33 and the column part 42, which helps to reduce precision requirements and facilitates the assembly of the structure.

[0065] This invention can fully utilize the advantages of metal materials and ceramic-based materials. The flow channel surface of the guide vane 3 is made of ceramic-based material, which has good high temperature resistance. After being insulated by ceramic-based material, the metal skeleton has a lower temperature and can play the role of the main load-bearing frame. Moreover, the metal skeleton has a high degree of design freedom and can be designed into an assembly structure that is well matched with the outer guide.

[0066] In some implementations, see Figure 10 and Figure 11 The adapter plate 4 includes a wing 41, a column 42, and a connecting part 43. The column 42 is the adapter side of the adapter plate 4, and the connecting part 43 is the mounting side of the adapter plate 4. The column 42 and the connecting part 43 are respectively disposed on opposite sides of the wing 41. One side of the wing 41 is connected to the side of the guide vane 3 facing the second bracket 2, and the other side of the wing 41 is connected to the outer periphery of the second bracket 2. The column 42 extends through the guide vane 3 to be fixedly connected to the first bracket 1. The connecting part 43 is disposed on the side of the wing 41 facing the second bracket 2. The connecting part 43 and the locking member 5 are correspondingly fixedly connected.

[0067] In one specific embodiment, a connecting hole 431 is provided in the middle of the connecting part 43, and the connecting hole 431 is used to connect the locking member 5.

[0068] In this embodiment, the adapter plate 4 plays the role of force transmission and limiting. The column part 42 contacts the positioning part 13 of the first bracket 1 and the hollow part 33 of the guide blade 3. The wing part 41 contacts the outer peripheral side of the second bracket 2 and the inner peripheral side of the guide blade 3. The connecting part 43 contacts and is fixed to the outer peripheral side of the second bracket 2.

[0069] In some embodiments, the hollow portion 33 is configured as a crescent-shaped groove or a U-shaped groove. The corresponding column portion 42 is configured as a matching crescent-shaped boss or a U-shaped boss. With this configuration, after the hollow portion 33 and the column portion 42 are aligned and fitted together, the adapter plate 4 can provide axial and circumferential constraints on the guide vanes. Specifically, taking the column portion 42 as a crescent-shaped boss structure as an example, in one specific embodiment, the width of its front boss is set to 3mm, and the width of its rear boss is set to 1.5mm; in another specific embodiment, the width of its front boss is set to 1.5mm, and the width of its rear boss is set to 3mm. Of course, the hollow portion 33 can be configured in other shapes, such as an interlocking canine structure, to achieve the same limiting effect.

[0070] In one specific embodiment, the wing 41 is configured as an irregular fan-shaped structure, and the connecting part 43 is configured as a fan-shaped structure. The wing 41 on the adapter plate 4 is spliced ​​and contacted with the wing 41 on the adjacent adapter plate 4, the column part 42 extends from the outer peripheral side of the wing 41 toward the first bracket 1, and the connecting part 43 extends from the inner peripheral side of the wing 41 toward the second bracket 2.

[0071] In this embodiment, see Figure 9 The guide vane 3 includes a first plate 31, a second plate 32, and a hollow portion 33. The first plate 31 is positioned on the inner periphery of the first support 1. The second plate 32 and the wing portion 41 are connected on the side away from the second support 2. The hollow portion 33 is constructed on the wall surface facing the first plate 31 and the second plate 32. The column portion 42 is positioned and connected to the hollow portion 33. The column portion 42 extends through the hollow portion 33.

[0072] In one implementation, see Figure 1 The second plate 32 and the wing 41 are aligned and flush on the radial plane of the first support 1.

[0073] See Figure 1 Multiple first plates 31 arranged in an adjacent combination are spliced ​​together to form a ring structure, and multiple second plates 32 arranged in an adjacent combination are spliced ​​together to form a ring structure. The circumferential radius of the first plate 31 is larger than the circumferential radius of the second plate 32, and the circumferential distribution area of ​​the first plate 31 is larger than the circumferential distribution area of ​​the second plate 32.

[0074] In some implementations, see Figure 5 For the assembly of the adapter plate 4 and the first bracket 1, the first bracket 1 is provided with a positioning part 13. The end of the column part 42 away from the wing part 41 is limited and connected to the positioning part 13. The positioning part 13 is conformally corresponding to the end of the column part 42 away from the wing part 41. The positioning part 13 can be configured as a positioning hole.

[0075] In one exemplary implementation, see [link to example]. Figure 10 The column portion 42 includes a first connecting portion 421 and a second connecting portion 422, which extend in the same direction. The first connecting portion 421 extends through the hollow portion 33 to connect to the positioning portion 13, and the second connecting portion 422 extends and is fitted inside the hollow portion 33. The outer wall surface of either connecting portion is in limiting contact with the inner wall surface of the hollow portion 33. The first bracket 1 and the guide vane 3 are connected by limiting the connection through the first connecting portion 421, and the guide vane 3 is connected by limiting the connection through the second connecting portion 422. The connecting portion 43 is fixed to the second bracket 2 by the locking member 5.

[0076] Furthermore, the first connecting part 421 is configured as a solid structure to ensure stable contact between the column part 42 and the hollow part 33, thereby guaranteeing the connection strength between the adapter plate 4 and the guide vane 3. The second connecting part 422 has a hollow structure for the passage of cooling airflow. The cavity of the hollow structure passes through the column part 42, and the side of the cavity near the first support 1 is connected to the annular groove 113 on the outer periphery of the first support 1. The side of the cavity near the second support 2 can extend out of the wing part 41, thereby constructing a cooling channel for the structure through the cavity. A cavity is provided on any adapter plate 4, so that the blade assembly structure has multiple cooling channels.

[0077] The blade assembly structure provided in this embodiment provides radial limiting for the guide blade 3: the second bracket 2 and the adapter plate 4 are fixed by the locking member 5; the adapter plate 4 and the guide blade 3 are aligned and pressed together by the first bracket 1 and the second bracket 2; the wing portion 41 of the adapter plate 4 radially contacts the outer periphery of the assembly body 22; and the connecting portion 43 of the adapter plate 4 radially contacts the outer periphery of the support body 21. For axial limiting of the guide blade 3: the axial displacement of the guide blade 3 is limited by the column portion 42 of the adapter plate 4; the second bracket 2 and the adapter plate 4 are fixed by the locking member 5. The positioning part 13 of the first bracket 1 is connected to the column part 42 of the adapter plate 4. The first stop structure 12 of the first bracket 1 and the second stop structure 34 of the guide blade 3 are limited. The connecting part 35 of the guide blade 3 and the inner flange 112 of the first bracket 1 are limited. For the circumferential limitation of the guide blade 3, the circumferential displacement of the guide blade 3 is limited by the column part 42 of the adapter plate 4. The second bracket 2 and the adapter plate 4 are fixed by the locking member 5. The positioning part 13 of the first bracket 1 is connected to the column part 42 of the adapter plate 4. The guide blade 3 and the adapter plate 4 are circumferentially spliced ​​and limited.

[0078] In the actual implementation of the blade assembly structure provided in this embodiment, the guide blade 3 is first assembled with the first bracket 1, and the second stop structure 34 of the guide blade 3 and the first stop structure 12 of the first bracket 1 are aligned and limited. Then, the column part 42 of the adapter plate 4 is passed through the hollow part 33 of the blade, and the end of the column part 42 is connected to the positioning part 13 of the first bracket 1. The wing part 41 abuts against the second plate 32 of the guide blade 3. Then, the connecting part 43 of the adapter plate 4 is fixed to the outer periphery of the second bracket 2 by the locking member 5. Finally, multiple assembly units are spliced ​​together to form an overall structure.

[0079] As the gas temperature requirements of aero-engines become increasingly stringent, lightweight, high-temperature resistant ceramic-based materials can meet these demands. However, the processing of ceramic-based composite materials is currently quite complex. For the configuration of traditional metal guide vanes, ceramic-based composite materials are difficult to process. This invention simplifies the structure of the ceramic-based guide vane, separating it from the assembly of the front and rear casings. On one hand, the guide vane 3 itself is simple to manufacture, has low manufacturing defects, and ensures reliable assembly accuracy, avoiding the need for machining and grinding. On the other hand, the metal frame composed of the first bracket 1, the second bracket 2, and the adapter plate 4 can be arbitrarily matched with the front and rear casings of the external components, making installation simple and convenient.

[0080] The blade assembly structure provided in this embodiment can effectively balance the assemblability and stability of the guide blade 3, and its assembly efficiency is high.

[0081] Example 2

[0082] This embodiment provides a guide, including the blade assembly structure of Embodiment 1. The blade assembly structure is easy to assemble and disassemble, has good assembly stability, and facilitates quick assembly, disassembly, and maintenance of the guide.

Claims

1. A blade assembly structure, characterized in that, include: First support (1); The second support (2) is spaced out within the first support (1); Multiple guide vanes (3) are arranged in a ring-shaped splicing combination, and each guide vane (3) is disposed between the inner peripheral side of the first support (1) and the outer peripheral side of the second support (2); Multiple adapter plates (4) are arranged in a ring-shaped splicing combination. The adapter plates (4) and the guide vanes (3) are arranged correspondingly. The adapter plates (4) are correspondingly sleeved and installed in the guide vanes (3). The adapter plates (4) have an installation side and an adapter side. The adapter side extends through the guide vanes (3) to be fixedly connected to the first bracket (1). The side of the guide vanes (3) away from the second bracket (2) is limited and connected to the first bracket (1). The side of the guide vanes (3) close to the second bracket (2) is connected to the installation side. And multiple locking elements (5), the locking elements (5) are arranged circumferentially along the axis of the annular structure formed by the combination of multiple guide vanes (3), the locking end of the locking element (5) is adapted to fix the mounting side of the second bracket (2) and the adapter plate (4) to press the guide vane (3) between the adapter plate (4) and the first bracket (1).

2. The blade assembly structure according to claim 1, characterized in that, The adapter plate (4) includes a wing (41), a column (42), and a connecting part (43). The column (42) and the connecting part (43) are respectively disposed on opposite sides of the wing (41). One side of the wing (41) is connected to the side of the guide vane (3) facing the second bracket (2), and the other side of the wing (41) is connected to the outer periphery of the second bracket (2). The column (42) extends through the guide vane (3) to be fixedly connected to the first bracket (1). The connecting part (43) is disposed on the side of the wing (41) facing the second bracket (2). The connecting part (43) and the locking member (5) are correspondingly fixedly connected.

3. The blade assembly structure according to claim 2, characterized in that, The guide vane (3) includes a first plate (31), a second plate (32), and a hollow portion (33). The first plate (31) is positioned on the inner periphery of the first support (1). The second plate (32) and the wing (41) are connected on the side away from the second support (2). The hollow portion (33) is constructed on the wall surface facing the first plate (31) and the second plate (32). The column portion (42) is positioned and connected to the hollow portion (33). The column portion (42) extends through the hollow portion (33).

4. The blade assembly structure according to claim 3, characterized in that, The first bracket (1) is provided with a positioning part (13), and the end of the column part (42) away from the wing part (41) is limited and connected to the positioning part (13). The positioning part (13) is configured to correspond to the end of the column part (42) away from the wing part (41).

5. The blade assembly structure according to claim 4, characterized in that, The column portion (42) includes a first connecting portion (421) and a second connecting portion (422). The first connecting portion (421) and the second connecting portion (422) extend in the same direction. The first connecting portion (421) extends through the hollow portion (33) to connect to the positioning portion (13). The second connecting portion (422) extends and is fitted inside the hollow portion (33). The outer wall surface of any connecting portion is in limiting contact with the inner wall surface of the hollow portion (33).

6. The blade assembly structure according to claim 3, characterized in that, The first support (1) is provided with a flange structure (11), the flange structure (11) including an outer flange (111) and an inner flange (112) spaced apart. The first support (1) is configured as a rotating body structure, and any flange extends along the axial direction of the first support (1). The inner flange (112) is disposed on the inner circumferential side of the outer flange (111). A receiving portion (14) suitable for accommodating at least a portion of the outer edge of the guide vane (3) is disposed between the outer flange (111) and the inner flange (112); and / or The second plate (32) and the wing (41) are aligned and flush on the radial plane of the first support (1).

7. The blade assembly structure according to claim 6, characterized in that, The first bracket (1) is provided with a first stop structure (12), which is formed on the flange structure (11). The guide vane (3) is provided with a second stop structure (34), which is formed on the outer edge of the guide vane (3). The guide vane (3) and the first bracket (1) are connected by the first stop structure (12) and the second stop structure (34) which are respectively provided in a conformal manner.

8. The blade assembly structure according to claim 7, characterized in that, The first stop structure (12) includes a first male stop (121) and a first female stop (122). The first male stop (121) and the first female stop (122) are arranged alternately along the circumferential direction of the first bracket (1). A step difference is provided between the first male stop (121) and the first female stop (122). The second stop structure (34) includes a second male stop (341) and a second female stop (342). The second male stop (341) and the second female stop (342) are disposed on the same guide vane (3). The second male stop (341) and the second female stop (342) are staggered along the circumferential direction of the first bracket (1). The second male stop (341) and the first female stop (122) are conformally corresponding. The second female stop (342) and the first male stop (121) are conformally corresponding. A clearance connection part (35) is provided between the second male stop (341) and the second female stop (342), and the connection part (35) is adapted to connect with the inner flange (112) extending along the axial direction of the first bracket (1); The second male stop (341) and the second female stop (342) abut against the inner side of the outer flange (111) on the side away from the first plate (31), and the receiving part (14) is adapted to receive the thickness of the second male stop (341) and the second female stop (342) in the radial direction of the first bracket (1).

9. The blade assembly structure according to claim 6, characterized in that, Two outer flanges (111) are provided, and the two outer flanges (111) are respectively provided on the inlet side and the outlet side of the guide vane (3). The two outer flanges (111) are raised in the radial direction of the first bracket (1). The two outer flanges (111) have annular grooves (113) on the outer periphery of the first bracket (1). The end of the column part (42) away from the second bracket (2) is provided in the annular grooves (113).

10. The blade assembly structure according to claim 6, characterized in that, The second bracket (2) includes a support body (21) and an assembly body (22) fixedly connected to each other. The support body (21) extends along the axial direction of the first bracket (1), and the assembly body (22) extends along the radial direction of the first bracket (1). A plurality of connecting parts (43) are circumferentially spliced ​​and abut against the outer periphery of the support body (21). The connecting parts (43) abut against the side of the assembly body (22) adjacent to the outlet side of the guide vane (3). The locking end of the locking member (5) is adapted to pass through and lock the connecting parts (43) and the assembly body (22).

11. The blade assembly structure according to claim 3, characterized in that, The hollow part (33) is configured as a crescent groove structure or a U-shaped groove structure.

12. The blade assembly structure according to any one of claims 1-11, characterized in that, The first bracket (1), the second bracket (2) and the adapter plate (4) are made of metal, and the guide vane (3) is made of ceramic.

13. A guide, characterized in that, Includes the blade assembly structure as described in any one of claims 1-12.

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