Shutter case and engine

Abstract

The invention relates to the technical field of aerospace, in particular to a shutter cartridge receiver and an engine, and aims to solve the problem that in the prior art, traditional cartridge receiver treatment cannot meet various working condition requirements at the same time. The shutter case comprises a case body, a transmission part, a driving mechanism and a case inner wall assembly, the case body is provided with a first end face and a second end face, a first limiting groove for placing the transmission part is formed in the outer side wall, close to the first end face, of the case body, and the transmission part is located in the first limiting groove; the driving mechanism is arranged on the outer side wall of the casing main body and is used for driving the transmission part to rotate; the casing inner wall assembly is located in the casing body and used for forming the inner diameter of the casing inner wall, one end of the casing inner wall assembly is rotationally connected with the transmission component, and the other end of the casing inner wall assembly is rotationally connected with the second end face. The shutter case and the engine are used for adjusting the stability of the engine.

Description

Technical Field

[0001] The present disclosure relates to the field of aerospace technology, and in particular to a shutter casing and an engine. Background Art

[0002] Casing treatment is a passive control technology that uses static design to expand the stable operating range of the compressor and improve the compression performance. It includes schemes such as opening holes, grooving or constructing porous inner walls. These schemes are generally based on fixed geometric structures to change the flow field inside the casing, thereby improving the stability of the compressor.

[0003] At present, traditional casing treatment can generally improve the stability of the compressor. However, since traditional casing treatment is generally based on static design and lacks dynamic adjustment capability, the stabilization effect is limited by the fixed geometric structure. This also limits the application effect of traditional casing treatment under complex and changeable flight conditions and operating conditions.

[0004] Therefore, how to solve the problem in the prior art that traditional casing processing cannot simultaneously meet the requirements of multiple working conditions is one of the important issues that need to be urgently solved in this field. Summary of the invention

[0005] In view of this, the embodiments of the present disclosure provide a shutter housing and an engine to solve the problem in the prior art that traditional housing processing cannot simultaneously meet the requirements of multiple working conditions.

[0006] According to one aspect of the present disclosure, a shutter receiver is provided, which includes: a receiver body, a transmission component, a driving mechanism and a receiver inner wall assembly, wherein the receiver body has a first end face and a second end face, and a first limiting groove for placing the transmission component is provided on the outer wall of the receiver body close to the first end face, and the transmission component is located in the first limiting groove; the driving mechanism is arranged on the outer wall of the receiver body, and the driving mechanism is used to drive the transmission component to rotate; the receiver inner wall assembly is located inside the receiver body, and the receiver inner wall assembly is used to constitute the inner diameter of the receiver inner wall, one end of the receiver inner wall assembly is rotationally connected to the transmission component, and the other end of the receiver inner wall assembly is rotationally connected to the second end face; the transmission component is rotated to drive the receiver inner wall assembly to rotate, and the rotation of the receiver inner wall assembly is used to change the inner diameter of the receiver inner wall and the perforation rate of the receiver inner wall.

[0007] In addition, according to one aspect of the shutter casing of the present disclosure, the casing inner wall assembly includes a plurality of wall panel units, the head end portion of each wall panel unit is gap-connected with the end portion of each wall panel unit, or the head end portion of each wall panel unit and the end portion of each wall panel unit overlap with each other.

[0008] According to one aspect of the shutter casing of the present disclosure, each wall panel unit includes: a first support rod, a second support rod and a wall panel, the wall panel is provided with a second limiting groove and a first through hole, the first support rod is arranged in the second limiting groove, and the second support rod is arranged in the first through hole.

[0009] According to one aspect of the shutter casing of the present disclosure, the geometric length of the first support rod and the second support rod protruding from the wall plate near the first end surface is L1, and the geometric length of the first support rod and the second support rod protruding from the wall plate near the second end surface is L2, and L1<L2.

[0010] According to one aspect of the shutter casing of the present disclosure, a plurality of second through holes distributed in a matrix are also provided on the wall plate.

[0011] According to a shutter casing of one aspect of the present disclosure, a plurality of first arc-shaped through holes are formed on the transmission component, and each of the first arc-shaped through holes is evenly distributed along the circumferential direction of the transmission component.

[0012] According to one aspect of the shutter receiver of the present disclosure, a plurality of second arc-shaped through holes are provided on the second end surface of the receiver body, and each of the second arc-shaped through holes is evenly distributed along the circumferential direction of the receiver body.

[0013] According to a shutter casing of one aspect of the present disclosure, the projection positions of the first arc-shaped through hole and the second arc-shaped through hole in the axial direction overlap.

[0014] According to a shutter casing of one aspect of the present disclosure, a geometric center of the driving mechanism and a geometric center of the transmission component are located on the same axis.

[0015] According to another aspect of the present disclosure, an engine is provided, comprising the shutter casing described above.

[0016] At least one of the above technical solutions adopted in the embodiments of the present disclosure can achieve the following beneficial effects: in the above shutter casing, the casing body has a first end face and a second end face, and a first limiting groove for placing a transmission component is provided on the outer wall of the casing body close to the first end face, and the transmission component is located in the first limiting groove. The driving mechanism is arranged on the outer wall of the casing body, and the driving mechanism is used to drive the transmission component to rotate. The casing inner wall assembly is located inside the casing body, and the casing inner wall assembly is used to form the inner diameter of the casing inner wall. One end of the casing inner wall assembly is rotationally connected to the transmission component, and the other end of the casing inner wall assembly is rotationally connected to the second end face. Based on this, the rotation of the transmission component is used to drive the casing inner wall assembly to rotate, and the rotation of the casing inner wall assembly is used to change the inner diameter of the casing inner wall and the perforation rate of the casing inner wall. By actively changing the inner diameter of the casing inner wall, the optimal tip clearance can be adjusted under different working conditions. On this basis, reducing the inner diameter of the inner wall of the casing under appropriate circumstances can reduce the tip clearance. Reducing the tip clearance can effectively reduce the decline of the compressor stability margin, reduce the impact of the tip leakage flow on the compressor loss, and reduce the fuel consumption rate. At the same time, reducing the inner diameter of the inner wall of the casing will increase the perforation coverage rate of the inner wall of the casing, so that the perforation rate of the inner wall of the casing remains unchanged or decreases, which is conducive to maintaining the stability of the compressor expansion margin, effectively reducing the risk of compressor stall or surge, and ensuring the safety of the engine. Actively changing the inner diameter of the inner wall of the casing and the perforation rate of the inner wall of the casing according to different operating conditions can ensure the safety of the engine, thereby effectively solving the problem that traditional casing processing in the prior art cannot meet the requirements of multiple operating conditions at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 The figure shows a schematic diagram of the overall assembly structure of a shutter casing according to an embodiment of the present disclosure;

[0019] Figure 2 FIG. 1 is a schematic cross-sectional view of the overall assembly structure of a shutter casing according to an embodiment of the present disclosure;

[0020] Figure 3 is a schematic diagram illustrating the structure of a wall panel unit according to an embodiment of the present disclosure;

[0021] Figure 4 is a schematic diagram illustrating the structure of a transmission component according to an embodiment of the present disclosure;

[0022] Figure 5It is a schematic structural diagram further illustrating a casing body according to an embodiment of the present disclosure.

[0023] Reference numerals:

[0024] 1-casing body, 11-first end face, 12-second end face, 121-second arcuate through hole, 13-first limiting groove, 2-transmission component, 21-first arcuate through hole, 3-casing inner wall assembly, 31-wall panel unit, 311-first support rod, 312-second support rod, 313-wall panel, 314-first through hole, 315-second limiting groove, 316-second through hole, 4-driving mechanism. DETAILED DESCRIPTION

[0025] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0026] It should be understood that the various steps described in the method embodiments of the present disclosure may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present disclosure is not limited in this respect.

[0027] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0028] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0029] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0030] Casing treatment is a passive control technology that uses static design to expand the stable operating range of the compressor and improve the compression performance. It includes schemes such as opening holes, grooving or constructing porous inner walls. These schemes are generally based on fixed geometric structures to change the flow field inside the casing, thereby improving the stability of the compressor.

[0031] At present, traditional casing treatment can generally improve the stability of the compressor. However, since traditional casing treatment is generally based on static design and lacks dynamic adjustment capability, the stabilization effect is limited by the fixed geometric structure. This also limits the application effect of traditional casing treatment under complex and changeable flight conditions and operating conditions.

[0032] In view of the above problems, the exemplary embodiments of the present disclosure provide a shutter housing and an engine to solve the problem in the prior art that traditional housing processing cannot simultaneously meet the requirements of multiple working conditions.

[0033] A shutter housing and a motor according to an embodiment of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0034] Figure 1 FIG. 1 is a schematic diagram of the overall assembly structure of a shutter casing according to an embodiment of the present disclosure. Figure 2 FIG. 1 is a schematic cross-sectional view of the overall assembly structure of the shutter casing according to an embodiment of the present disclosure. Figure 1 - Figure 2As shown, the shutter casing includes: a casing body 1, a transmission component 2, a driving mechanism 4 and a casing inner wall assembly 3. The casing body 1 has a first end face 11 and a second end face 12. A first limiting groove 13 for placing the transmission component 2 is provided on the outer wall of the casing body 1 near the first end face 11, and the transmission component 2 is located in the first limiting groove 13. It can be understood that the transmission component 2 can be a transmission component 2 such as a gear, and a gear is taken as an example here. The driving mechanism 4 is arranged on the outer wall of the casing body 1, and the driving mechanism 4 is used to drive the transmission component 2 to rotate. It should be understood that the above-mentioned driving mechanism 4 has a simple electric control logic and can drive the transmission component 2 to rotate. The driving mechanism 4 here is composed of a driving gear and a motor. The motor controls the driving gear to rotate and drives the transmission component 2 to transmit. Here, four control driving gears are taken as an example, and the four control driving gears are evenly arranged on the outer wall of the casing body 1. Since the contact points between the gear transmissions are reasonably distributed, the forces can be effectively dispersed, wear can be reduced, energy loss during the transmission process can be reduced, and vibration and noise caused by poor matching can be reduced, thereby optimizing the performance of the entire transmission system, improving the transmission efficiency, and ensuring the consistency and accuracy of power transmission. The casing inner wall assembly 3 is located inside the casing body 1, and the casing inner wall assembly 3 is used to form the inner diameter of the casing inner wall. One end of the casing inner wall assembly 3 is rotatably connected to the transmission component 2, and the other end of the casing inner wall assembly 3 is rotatably connected to the second end face 12. The rotation of the transmission component 2 is used to drive the casing inner wall assembly 3 to rotate, and the rotation of the casing inner wall assembly 3 is used to change the inner diameter of the casing inner wall and the perforation rate of the casing inner wall.

[0035] On this basis, by actively changing the inner diameter of the inner wall of the casing, the optimal tip clearance can be adjusted under different working conditions. On this basis, reducing the inner diameter of the inner wall of the casing under appropriate circumstances can reduce the tip clearance. Reducing the tip clearance can effectively reduce the decline of the compressor stability margin, reduce the impact of the tip leakage flow on the compressor loss, and reduce the fuel consumption rate. At the same time, by reducing the inner diameter of the inner wall of the casing, the perforation coverage rate of the inner wall of the casing will increase, so that the perforation rate of the inner wall of the casing remains unchanged or decreases, which is conducive to maintaining the stability of the compressor expansion margin, effectively reducing the risk of compressor stall or surge, and ensuring the safety of the engine. Actively changing the inner diameter of the inner wall of the casing and the perforation rate of the inner wall of the casing according to different working conditions can ensure the safety of the engine, thereby effectively solving the problem that traditional casing processing in the prior art cannot meet the needs of multiple working conditions at the same time.

[0036] Exemplarily, the casing inner wall assembly 3 includes a plurality of wall panel units 31, such as Figure 1 As shown, the head end portion of each wall panel unit 31 is gap-connected with the tail end portion of each wall panel unit 31, or the head end portion of each wall panel unit 31 and the tail end portion of each wall panel unit 31 overlap with each other.

[0037] In practical applications, such as Figure 1 As shown, the head end of each wall panel unit 31 and the end of each wall panel unit 31 can be understood as being along the circumferential direction of the inner wall of the casing, and there are two ways of connecting two adjacent wall panel units 31, one is that the head end of each wall panel unit 31 and the end of each wall panel unit 31 are gap connected, and the other is that the head end of each wall panel unit 31 and the end of each wall panel unit 31 overlap each other. When the transmission component 2 drives the wall panel unit 31 to rotate, the adjacent wall panel units 31 will gradually change from gap connection to overlap each other, thereby changing the inner diameter of the inner wall of the casing.

[0038] Figure 3 is a schematic diagram illustrating the structure of the wall panel unit 31 according to an embodiment of the present disclosure. Figure 3 As shown, each wall panel unit 31 includes: a first support rod 311, a second support rod 312 and a wall panel 313, a second limiting groove 315 and a first through hole 314 are provided on the wall panel 313, the first support rod 311 is arranged in the second limiting groove 315, and the second support rod 312 is arranged in the first through hole 314. It can be understood that the second limiting groove 315 provided on the wall panel 313 is replaced on the wall panel 313, and the uniformly arranged second limiting grooves 315 help to achieve a more accurate control function of the wall panel unit 31, and can accurately adjust the position, angle or motion state of related components. The geometric length of the first support rod 311 and the second support rod 312 extending out of the wall panel 313 near the first end face is L1, and the geometric length of the first support rod 311 and the second support rod 312 extending out of the wall panel 313 near the second end face is L2, L1<L2, during assembly, the wall panel unit 31 can be quickly installed on the inner wall of the casing, which improves the assembly efficiency and facilitates quality inspection and debugging after assembly, which helps to quickly and smoothly complete the assembly of the entire product and put it into use.

[0039] like Figure 3 As shown, the wall plate 313 is also provided with a plurality of second through holes 316 distributed in a matrix. During the operation of the casing, the movement of internal parts, temperature changes and other factors may cause changes in the internal air pressure. The second through holes 316 can discharge the high-pressure gas inside the casing, balance the air pressure inside and outside the casing, and ensure the safety of the casing structure. In addition, the second through holes 316 can allow external air to enter in time to avoid the normal movement of the internal mechanism being affected by negative pressure, such as preventing abnormal adsorption or movement obstruction between parts due to negative pressure. At the same time, the second through holes 316 can also speed up the convection of air, take away the heat, and help keep the internal temperature of the casing within a suitable range, thereby extending the service life of the internal components.

[0040] Figure 4 2 is a schematic diagram showing the structure of the transmission component 2 according to an embodiment of the present disclosure. Figure 4As shown, the transmission component 2 is provided with a plurality of first arcuate through holes 21, each of which is evenly distributed along the circumferential direction of the transmission component 2. The second end surface of the casing body is provided with a plurality of second arcuate through holes, each of which is evenly distributed along the circumferential direction of the casing body.

[0041] In practical applications, such as Figure 4 As shown, when the wall panel unit is assembled, the evenly distributed multiple first arc-shaped through holes 21 and the multiple second arc-shaped through holes can better resist deformation such as twisting and bending compared to the unevenly distributed structure, thereby enhancing the overall structural stability of the casing and effectively avoiding wear and fatigue damage of the wall panel unit due to excessive local force. At the same time, the distribution structure of each first arc-shaped through hole 21 and each second arc-shaped through hole is as shown in FIG. Figure 1 As shown, it can also be understood that the projection position of the first arc-shaped through hole 21 and the second arc-shaped through hole in the axial direction overlap, which reduces the difficulty of assembling the wall panel unit when it is installed in the inner wall of the casing during the assembly process, and improves the assembly efficiency. At the same time, when one of the wall panel units is damaged, it is convenient to disassemble and replace. In addition, the first arc-shaped through hole 21 has better versatility when it is used in different application scenarios with the second arc-shaped through hole or when it is combined with different components. For example, the same model of casing can be conveniently used in a variety of similar but slightly different mechanical devices, as long as the matching components can adapt to the size and arrangement of the notches.

[0042] Figure 5 is a schematic diagram further illustrating the structure of the casing body according to an embodiment of the present disclosure. Figure 5 As shown, the geometric center of the drive mechanism 4 and the geometric center of the transmission component 2 are located on the same axis. When the geometric centers of the drive mechanism 4 and the transmission component 2 are located on the same axis, the axial force generated by the drive mechanism 4 can be directly and efficiently transmitted to the transmission component, reducing the energy loss caused by the decomposition of the force. Since the force transmission is more uniform and the movement is more stable, the mutual wear between the drive mechanism and the transmission component will be significantly reduced. At the same time, good motion stability also reduces the impact wear caused by vibration and extends the service life of bearings and other mating parts. Secondly, when the drive mechanism 4 fails and needs to be replaced, the maintenance personnel can quickly replace it according to the original center axis, and can ensure that the replaced system still maintains good performance.

[0043] For example, Figure 4 - Figure 5As shown, the circumferential dimension of the first arcuate through hole 21 in the circumferential direction is represented by d1, and the circumferential dimension of the second arcuate through hole 121 in the circumferential direction is represented by d2, and the dimension from the head end to the end of the wall panel unit is represented by d3, d1>d3, d2>d3, d1=d2, when the wall panel unit rotates in the first arcuate through hole 21 and the second arcuate through hole 121, the first arcuate through hole 21 and the second arcuate through hole 121 can provide a certain activity space for the wall panel unit, and at the same time, when the wall panel unit is respectively inscribed with the first arcuate through hole 21 and the second arcuate through hole 121, at this time, adjacent wall panel units are partially overlapped, thereby changing the perforation rate of the inner wall of the casing.

[0044] The present disclosure also provides an engine, including the shutter housing. It should be understood that the engine can be an engine in the aerospace field, or an engine in the transportation field, which are not listed here one by one.

[0045] Compared with the prior art, the beneficial effects of the engine provided by the present invention are the same as the beneficial effects of the shutter housing, which will not be elaborated here.

[0046] The above descriptions are only some embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, a technical solution formed by replacing the above features with the technical features with similar functions disclosed in the present disclosure (but not limited to).

[0047] Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A shutter casing, characterized in that: The shutter receiver comprises: a receiver body, a transmission component, a driving mechanism and a receiver inner wall assembly, the receiver body having a first end face and a second end face, and a first limiting groove for placing the transmission component is provided on the outer wall of the receiver body close to the first end face, and the transmission component is located in the first limiting groove; the driving mechanism is arranged on the outer wall of the receiver body, and the driving mechanism is used to drive the transmission component to rotate; the receiver inner wall assembly is located inside the receiver body, and the receiver inner wall assembly is used to constitute the inner diameter of the receiver inner wall, one end of the receiver inner wall assembly is rotationally connected to the transmission component, and the other end of the receiver inner wall assembly is rotationally connected to the second end face; the rotation of the transmission component is used to drive the receiver inner wall assembly to rotate, and the rotation of the receiver inner wall assembly is used to change the inner diameter of the receiver inner wall and the perforation rate of the receiver inner wall.

2. The shutter housing according to claim 1, characterized in that: The casing inner wall assembly includes a plurality of wall panel units, wherein the head end portion of each wall panel unit is gap-connected with the tail end portion of each wall panel unit, or the head end portion of each wall panel unit overlaps with the tail end portion of each wall panel unit.

3. The shutter casing according to claim 2, characterized in that: Each of the wall panel units includes: a first support rod, a second support rod and a wall panel, wherein the wall panel is provided with a second limiting groove and a first through hole, the first support rod is arranged in the second limiting groove, and the second support rod is arranged in the first through hole.

4. The shutter housing according to claim 3, characterized in that: The geometric length of the first support rod and the second support rod protruding from the wall plate near the first end surface is L1, and the geometric length of the first support rod and the second support rod protruding from the wall plate near the second end surface is L2, and L1<L2.

5. The shutter casing according to claim 2, characterized in that: The wall plate is also provided with a plurality of second through holes distributed in a matrix.

6. The shutter housing according to claim 1, characterized in that: The transmission component is provided with a plurality of first arc-shaped through holes, and each of the first arc-shaped through holes is evenly distributed along the circumferential direction of the transmission component.

7. The shutter housing according to claim 6, characterized in that: A plurality of second arc-shaped through holes are formed on the second end surface of the casing body, and each of the second arc-shaped through holes is evenly distributed along the circumferential direction of the casing body.

8. The shutter housing according to claim 7, characterized in that: The projection positions of the first arc-shaped through hole and the second arc-shaped through hole in the axial direction overlap.

9. The shutter housing according to claim 1, characterized in that: The geometric center of the driving mechanism and the geometric center of the transmission component are located on the same axis.

10. An engine, characterized in that: The shutter casing comprises the shutter casing as described in any one of claims 1 to 9.

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