CN115822780A - Supporting conical wall, fan rotor supporting structure and supporting conical wall installation method - Google Patents
Supporting conical wall, fan rotor supporting structure and supporting conical wall installation method Download PDFInfo
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Abstract
A supporting conical wall, a fan rotor supporting structure and a supporting conical wall installation method are used for improving the situation that after a single fusing threshold value is reached, a fusing part is completely failed to cause severe power characteristic change.
Description
Technical Field
The invention relates to the field of aircraft engines, in particular to a supporting conical wall, a fan rotor supporting structure and a supporting conical wall mounting method.
Background
Currently, the rotors of aircraft engines are mostly composed of a high-pressure rotor and a low-pressure rotor. In the low-pressure rotor, the fan rotor is supported to the bearing case through a supporting structure, wherein the No. 1 bearing and the No. 2 bearing support the fan rotor, a supporting conical wall connecting the No. 1 bearing and the No. 2 bearing transmits the load generated by the fan rotor to the bearing case, and the supporting conical wall is a key part for transmitting the load of the fan rotor to the bearing case when the aircraft engine normally operates.
During the operation of the aircraft engine, a fan blade is broken or falls off due to factors such as foreign object suction or fatigue, and a fan blade flying event (FBO) occurs. After an FBO event occurs, the low pressure rotor remains at a higher rotational speed and the size and mass of the shedding fan blades are large, resulting in misalignment of the fan rotor's center of gravity with the aircraft engine's centerline, causing a large imbalance load. In order to ensure that the engine can safely pass through the parking deceleration and windmill rotation stages after the FBO event occurs and finally land safely, a fusing structure needs to be designed.
Chinese patent document CN111894737B discloses a rotor support structure and a gas turbine, wherein a tapered wall member as a first support member is provided with a wall surface thinned section as a fuse, and when an unbalanced load caused by an FBO event reaches a single fuse threshold, the wall surface thinned section as the fuse is broken until the wall surface thinned section fails completely, which reduces the unbalanced load, but the fuse fails completely, so that the load-bearing function of the fuse is lost completely, and the connection device only depends on an elastic component to bear the load, so that the rigidity of the tapered wall member supporting the 1# bearing changes drastically, the dynamic characteristics of the fan rotor change drastically, and although the unbalanced load borne by the 1# bearing is released sufficiently, the 2# bearing needs to bear a large unbalanced load, which may cause damage, and at the same time, the drastic dynamic characteristics change may cause the fan rotor to swing drastically, hit a casing, and cause more serious damage to the engine.
Disclosure of Invention
The invention aims to provide a supporting conical wall for improving the condition that after unbalanced load reaches a single fusing threshold value, a fusing part is completely failed to cause severe dynamic characteristic change.
According to the embodiment of the invention, one end of the supporting conical wall is used for supporting a bearing, the other end of the supporting conical wall is used for connecting a force-bearing casing, the supporting conical wall comprises a fusible section, the fusible section comprises a double-layer structure, one layer of the fusible section is a deformation part, the other layer of the fusible section is a fusing part, the fusing part and the deformation part share the load, the deformation part is arranged to be deformable after the fusing part is fused so as to reduce the rigidity of the supporting conical wall, the fusing part comprises a plurality of fusing units which are circumferentially and discretely arranged, and the failure strengths of the fusing units are at least partially different.
In one or more embodiments, the fusing part is a fusing cone wall including two end portions and a plurality of circumferentially discrete connecting arms connecting the two end portions, failure strengths of the plurality of connecting arms being at least partially different, and the plurality of fusing units being provided by the plurality of connecting arms.
In one or more embodiments, the fusing cone wall is disposed inside the deformation portion, and the two ends of the fusing cone wall are connected with the deformation portion through bolts.
In one or more embodiments, the fusing part is constituted by a plurality of connecting arms that are separated from each other and are circumferentially discrete, failure strengths of the plurality of connecting arms are at least partially different, and the plurality of fusing units are provided by the plurality of connecting arms.
In one or more embodiments, the connecting arms are disposed inside the deformation portion, and the connecting arms are respectively bolted to the deformation portion.
In one or more embodiments, the deformation comprises a folded structure.
Another objective of the present invention is to provide a fan rotor supporting structure, which includes the above supporting cone wall.
According to the embodiment of the invention, the fan rotor supporting structure is used for connecting a fan rotor and a force bearing casing and comprises a first supporting conical wall, a second supporting conical wall, a first bearing and a second bearing, wherein one end of the first supporting conical wall is connected with the force bearing casing, the other end of the first supporting conical wall supports the first bearing and supports one end of a fan shaft through the first bearing, one end of the second supporting conical wall is connected with the force bearing casing, the other end of the second supporting conical wall supports the second bearing and supports the other end of the fan shaft through the second bearing, and the first supporting conical wall is the supporting conical wall.
The invention further aims to provide a supporting conical wall mounting method for improving the condition that the rigidity of the supporting conical wall is inconsistent at each circumferential position, wherein the supporting conical wall is the supporting conical wall.
According to the embodiment of the invention, the method for installing the supporting conical wall comprises the steps of correspondingly assembling a bearing case installation end and a bearing installation end; obtaining the rigidity of each circumferential position of the support conical wall after assembly; and installing a fusing part; the installation fusing part adjusts the rigidity of each circumferential position of the supporting conical wall to be consistent by means of distribution of a plurality of fusing units with at least part of different rigidities.
The embodiment of the invention has the following beneficial effects:
through setting up fusing part including the at least partially different a plurality of fusing unit of circumference discrete setting and failure strength, form multistage fusing threshold value, the multistage of fusing part has been realized, partial fusing, when unbalanced load reaches low level fusing threshold value, the fusing unit fusing of low failure strength, the fusing unit of high failure strength does not fuse, fusing part is hierarchical, the part is invalid, reduce rigidity, change dynamic characteristics, reduce unbalanced load, the fusing unit that fusing part was not fused continues to bear simultaneously, avoid the once fusing drastic dynamic characteristics change that the complete failure brought of fusing part, avoid the 2# bearing to damage because of bearing big unbalanced load, also avoid fan rotor striking machine casket.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural view of a fan rotor support structure;
FIG. 2 is a schematic structural view of a supporting cone wall;
FIG. 3 is a schematic view of the structure of the fuse cone wall;
FIG. 4 is a schematic structural diagram of the deformation portion;
FIG. 5 is a schematic view of the structure of the supporting cone wall;
FIG. 6 is a schematic view of the structure of the supporting cone wall;
FIG. 7 is a schematic view of a fuse portion;
FIG. 8 is a schematic view of the structure of the supporting cone wall;
fig. 9 is a schematic structural view of the supporting cone wall.
Reference numerals:
1-supporting conical wall
2-bearing casing
3-1# bearing
4-fusible section
5-deformation part
6-fusing part
7-Fan rotor
8-connecting arm
9-fusing conical wall
10-end part
11-small end
12-big end
13-bolt hole
14-bolt
15-folding structure
16-2# bearing
17-connecting arm
18-fan rotor support structure
19-first supporting cone wall
20-second supporting cone wall
21 fan shaft
22-bearing case mounting end
23-bearing mounting end
Detailed Description
The terms of orientation "circumferential", "radial", "inside", "outside" and the like are used with reference to the supporting conical wall 1. The terms "first," "second," and the like may be used interchangeably to distinguish one element from another, and are not intended to indicate that the various elements must be located as shown in the figures in various embodiments.
Example one
As shown in fig. 1, one end of the supporting conical wall 1 is used for supporting a bearing, specifically a # 1 bearing 3, and the other end is used for connecting a bearing case 2. The No. 1 bearing 3 supports the fan rotor 7 to form a force transmission path from the fan rotor 7 to the No. 1 bearing 3 to the supporting conical wall 1 to the force bearing casing 2, and the supporting conical wall 1 is a key part for transmitting the load of the fan rotor 7 to the force bearing casing 2 when the aircraft engine runs normally.
As shown in fig. 2, the supporting conical wall 1 includes the fusible section 4, the fusible section 4 includes a double-layer structure, one layer is the deformation portion 5, the other layer is the fusing portion 6, the fusing portion 6 is arranged to share the load with the deformation portion 5, and the deformation portion 5 is arranged to be deformable after the fusing portion 6 is fused so as to reduce the rigidity of the supporting conical wall 1. The deformation part 5 and the fusing part 6 are arranged in parallel, when the fusing part 6 is not fused at all, the deformation part 5 and the fusing part 6 which are connected in parallel realize mechanical connection of the supporting conical wall 1 and load bearing and transmission, and compared with the fusing part 6, the rigidity of the deformation part 5 is smaller due to deformability of the deformation part 5, so that when the fusing part 6 is not fused at all, the load is mainly borne by the fusing part 6, and the deformation part 5 keeps an initial shape; under the condition that the fusing part 6 is only partially fused, the parallel deformation part 5 and the un-fused part of the fusing part 6 jointly realize the mechanical connection of the supporting conical wall 1 and the bearing and transmission of load, at the moment, the deformation part 5 deforms, and at the fused part of the fusing part 6, the deformation of the deformation part 5 is obvious; under the condition that fusing part 6 is totally fused, fusing part 6 is totally lost, and only deformation part 5 realizes supporting the mechanical connection of conical wall 1 and undertaking, transmitting of load, and at this moment, deformation part 5 takes place to warp, and compare the condition that fusing part 6 partially fuses, and the degree of deformation is more obvious.
The fusing part 6 includes a plurality of fusing units discretely arranged in the circumferential direction, and the failure strengths of the plurality of fusing units are at least partially different. Specifically, as shown in fig. 3, the fusing part 6 is a fusing cone wall 9, the fusing cone wall 9 includes two end parts 10 and a plurality of connecting arms 8 that connect the two end parts 10 and are circumferentially discrete, the two end parts 10 are a large end 12 and a small end 11 of the fusing cone wall 9, the plurality of connecting arms 8 that are circumferentially discrete from each other form a whole by connecting the large end 12 and the small end 11, failure strengths of the plurality of connecting arms 8 are at least partially different, the plurality of fusing units are provided by the plurality of connecting arms 8, the fusing units are the connecting arms 8, failure strength of the connecting arms 8 is a fusing threshold of the fusing units, failure strengths of the plurality of connecting arms 8 are at least partially different so that fusing thresholds of the plurality of fusing units are at least partially different, the fusing part 6 has at least two fusing thresholds, difference of failure strengths of the connecting arms 8 is realized by size change of the connecting arms 8, if the connecting arms 8 with different failure strengths have different circumferential width sizes. More specifically, the specific setting mode of linking arm 8 failure strength adapts to fusing design requirements, for example, linking arm 8 failure strength is different each other, the fusing threshold value of fusing unit is different each other, fusing threshold value quantity of fusing portion 6 is linking arm 8 quantity in fusing awl wall 9 promptly, under this setting mode, fusing portion 6 possesses as many fusing threshold values as possible, be suitable for the great fusing design requirement of low-level fusing threshold value and senior fusing threshold value gap, realize the great fusing threshold value scope of span, for example again, a plurality of linking arms 8 possess two failure strength altogether, fusing portion 6 possesses two fusing threshold values promptly, a low-level fusing threshold value and a senior fusing threshold value.
As shown in fig. 2, the fusing cone wall 9 is disposed inside the deformation portion 5, two end portions 10 of the fusing cone wall 9 are bolted to the deformation portion 5, as shown in fig. 4, the deformation portion 5 is circumferentially provided with a plurality of bolt holes 13, a plurality of bolt holes 13 are also circumferentially provided at corresponding positions of the small end 11 and the large end 12 of the fusing cone wall 9, and bolts 14 connect the fusing cone wall 9 and the deformation portion 5 through the bolt holes 13.
The deformation part 5 comprises a folding structure 15, as shown in fig. 4, the folding structure 15 is an annular structure continuously arranged in the circumferential direction, the radial cross section of the folding structure 15 is similar to a V shape, and the folding structure protrudes out of the outer surface of the deformation part 5, the rigidity of the folding structure 15 is smaller so as to reduce the rigidity of the supporting conical wall 1, and further the deformation part 5 deforms after the fusing part 6 fuses.
The linking arm 8 that disperses each other in the circumference makes the fusing of linking arm 8 independent each other, that is the fusing of fusing unit is independent each other in fusing portion 6, this makes it possible to carry out the fusing design to every fusing unit, rethread sets up the failure strength of a plurality of linking arms 8 at least part difference, that is the fusing threshold value of a plurality of fusing units is at least part difference, a plurality of fusing units possess at least two fusing threshold values, make fusing portion 6 possess multistage (at least two-stage) fusing threshold value, thereby realize the great fusing threshold value scope of span, realize the multistage of fusing portion 6, partial fusing, realize the failure order control of fusing unit in fusing portion 6, and traditional fusing portion does not possess a plurality of fusing unit that can independently fuse each other, therefore only possess single fusing threshold value, in case the fusing is all until failing, its fusing process controllability does not have the fusing.
When the unbalanced load generated by the FBO event is small, the rotor dynamic characteristics need to be changed less to reduce the unbalanced load, and when the unbalanced load generated by the FBO event is large, the rotor dynamic characteristics need to be changed greatly to reduce the unbalanced load, which requires controlling the fusing structure to respond in stages according to different degrees of unbalanced loads to realize different degrees of changes of the rotor dynamic characteristics. The traditional fusing part only provided with a single fusing threshold value does not have the graded response capability when facing unbalanced loads of different sizes, when the unbalanced loads do not reach the fusing threshold value, the fusing part is not fused, the dynamic characteristic of the rotor is not changed, the unbalanced loads cannot be reduced, when the unbalanced loads reach the fusing threshold value, the fusing part is fused until the fusing part is completely failed, the bearing effect is completely lost, the rigidity of the supporting conical wall for supporting the 1# bearing is changed violently, the dynamic characteristic of the rotor is changed violently, although the unbalanced loads borne by the 1# bearing are fully released, the 2# bearing is damaged possibly because the unbalanced loads need to be borne by large forces, and meanwhile, the violent dynamic characteristic change can cause the fan rotor 7 to swing violently to impact a casing, so that an engine is damaged more seriously. The fusing part 6 with multi-stage fusing threshold is provided in the embodiment, when unbalanced loads of different sizes are faced, the grading response capability is provided, when a smaller unbalanced load reaches a low-stage fusing threshold, the fusing unit with low failure strength fuses, the fusing unit with high failure strength does not fuse, the fusing part 6 is graded and partially fails, the rigidity is reduced, the deformation part 5 deforms to a smaller extent, the dynamic characteristic is changed to a smaller extent, the unbalanced load is reduced, meanwhile, the fusing unit with the fusing part 6 not fused continues to bear the load, severe dynamic characteristic change caused by complete failure of the fusing part 6 after one-time fusing is avoided, the 2# bearing 16 is prevented from being damaged due to bearing of a large unbalanced load, the design difficulty at the 2# bearing 16 is reduced, the fan rotor 7 is also prevented from impacting a casing, when a larger unbalanced load reaches a highest-stage threshold, at the moment, the dynamic characteristic of the rotor needs to be changed to the largest extent, the fusing unit with low failure strength fuses first, the fusing unit with high failure strength fuses, the fusing unit 6 sequentially and completely fails, the rigidity is reduced, the deformation part 5 deforms to the largest extent, the maximum dynamic characteristic is changed, the fusing part 6 completely fuses, and the deformation part 6 loses the function of bearing the deformation and bears the load, and the load bearing of the cone wall 1.
In this embodiment, the radial cross section of the folding structure 15 is V-like. In another embodiment or embodiments, the radial cross-section of the folding structure 15 is of the semi-circular arc type as shown in fig. 5. In one or more embodiments, the radial section of the folding structure 15 has other shapes, and the rigidity is small so that the deformation portion 5 can be deformed after the fusing portion 6 is fused.
In this embodiment, the deformation 5 comprises a folded structure 15. In another embodiment or embodiments, the deformation portion 5 is provided with other structures having a small rigidity so that the deformation portion 5 can be deformed after the fusion portion 6 is fused.
In this embodiment, the fuse cone wall 9 as the fusing part 6 is disposed inside the deformable part 5, and the folded structure 15 of the deformable part 5 protrudes from the outer surface of the deformable part 5. In another embodiment or embodiments, the fusible cone wall 9 as the fusing part 6 is disposed outside the deformation part 5, and the folded structure 15 of the deformation part 5 protrudes from the inner surface of the deformation part 5, as shown in fig. 6.
In the present embodiment, both end portions 10 of the fused cone wall 9 are bolted to the deformation portion 5. In another embodiment or in several embodiments, the two ends 10 of the fusible cone wall 9 are welded to the deformation 5. In one or more further embodiments, the fusible cone wall 9 is connected to the deformation 5 by other means.
In the present embodiment, the difference in the failure strength of the connecting arm 8 is achieved by a change in the size of the connecting arm 8. In another embodiment or embodiments, the difference in failure strength of the connecting arms 8 is achieved by a change in the material of the connecting arms 8, the material strength of the connecting arms 8 being different in failure strength. In yet another embodiment or embodiments, the difference in failure strength of the connecting arms 8 is achieved by a structural variation of the connecting arms 8, e.g. one connecting arm 8 is provided with a material thinning to distinguish its failure strength from the other connecting arms 8. In yet another or more embodiments, the failure strengths of the plurality of connecting arms 8 are made at least partially different by other means.
Example two
Fig. 7 to 9 show a second embodiment, which uses the element numbers and part of the contents of the first embodiment, wherein the same numbers are used to indicate the same or similar elements, and the descriptions of the same technical contents are optionally omitted. For the description of the omitted portions, reference may be made to embodiment one, and details are not repeated in embodiment two.
As shown in fig. 7, the fusing part 6 is formed by a plurality of connecting arms 17 separated from each other and circumferentially discrete, the failure strengths of the plurality of connecting arms 17 are at least partially different, the plurality of fusing units are provided by the plurality of connecting arms 17, and the difference in the failure strengths of the connecting arms 17 is realized by the dimensional change of the connecting arms 17, such as the connecting arms 17 having different failure strengths have different circumferential width dimensions.
As shown in fig. 8, the connecting arms 17 are disposed inside the deformation portion 5, and the connecting arms 17 are respectively bolted to the deformation portion 5, as shown in fig. 4, the deformation portion 5 is provided with a plurality of bolt holes 13 along the circumferential direction, bolt holes 13 are also circumferentially disposed at corresponding positions at both ends of each connecting arm 17, and the bolt 14 connects the connecting arm 17 and the deformation portion 5 through the bolt holes 13.
In this embodiment, a plurality of connecting arms 17 as the fusing part 6 are disposed inside the deformable part 5, and the folded structure 15 of the deformable part 5 protrudes from the outer surface of the deformable part 5. In another embodiment or embodiments, a plurality of connecting arms 17 as the fusing part 6 are provided outside the deformation part 5, and the folded structure 15 of the deformation part 5 protrudes from the inner surface of the deformation part 5, as shown in fig. 9.
In the present embodiment, both ends of the connecting arm 17 are bolted to the deformer 5. In another embodiment or embodiments, the connecting arm 17 is welded at both ends to the deformation 5. In yet another or more embodiments, the connecting arm 17 is connected to the deformation 5 by other means.
In this embodiment, the difference in failure strength of the connecting arms 17 is achieved by a change in the size of the connecting arms 17. In another embodiment or embodiments, the difference in failure strength of the connecting arms 17 is achieved by a change in the material of the connecting arms 17, the material strength of the connecting arms 17 being different in failure strength. In yet another embodiment or embodiments, the difference in failure strength of the connecting arms 17 is achieved by a structural variation of the connecting arms 17, for example, one connecting arm 17 is provided with a material thinning to distinguish its failure strength from the other connecting arms 17. In yet another or more embodiments, the failure strengths of the plurality of connecting arms 17 are made at least partially different by other means.
EXAMPLE III
Fig. 1 shows a fan rotor supporting structure 18, which is used for connecting a fan rotor 7 and a force-bearing casing 2, and includes a first supporting conical wall 19, a second supporting conical wall 20, a first bearing and a second bearing, wherein the first bearing is a # 1 bearing 3 known to those skilled in the art, the second bearing is a # 2 bearing 16 known to those skilled in the art, one end of the first supporting conical wall 19 is connected with the force-bearing casing 2, the other end supports the first bearing, and supports one end of a fan shaft 21 through the first bearing, one end of the second supporting conical wall 20 is connected with the force-bearing casing 2, the other end supports the second bearing, and supports the other end of the fan shaft 21 through the second bearing, and the first supporting conical wall 19 adopts any one of the supporting conical walls 1 described in the first embodiment and the second embodiment.
Example four
A supporting cone wall installation method adopts any one of the supporting cone walls 1 described in the first embodiment and the second embodiment, and comprises the following steps:
and correspondingly assembling a force bearing casing mounting end 22 and a bearing mounting end 23. An outer layer part of the support conical wall 1 including the fusible section 4 deformation part 5 (excluding the fusing part 6) is correspondingly assembled with a bearing case installation end 22 and a bearing installation end 23, specifically, the bearing case installation end 22 is assembled with the bearing case 2, and the bearing installation end 23 is assembled with the # 1 bearing 3.
And the rigidity of each circumferential position of the supporting conical wall 1 after assembly is obtained. Due to assembly reasons, after the outer layer part of the supporting conical wall 1 is assembled with the force bearing casing 2 and the No. 1 bearing 3, the rigidity of each circumferential position of the supporting conical wall 1 is inconsistent, and the rigidity of each circumferential position of the outer layer part of the supporting conical wall 1 after assembly is obtained, so that the condition that the rigidity is inconsistent is determined.
The installation fusing part 6 adjusts the rigidity of each position of the supporting conical wall 1 in the circumferential direction to be consistent by the distribution of a plurality of fusing units with different rigidity at least partially. The fusing part 6 (namely the inner layer part of the supporting conical wall 1) of the supporting conical wall 1 is assembled with the deformation part 5, the deformation part 5 is provided with a folding structure 15 for reducing rigidity, the rigidity is lower, after the fusing part 6 and the deformation part 5 are assembled to form parallel connection, the fusing part 6 mainly provides rigidity for the supporting conical wall 1, the fusing part 6 and the deformation part 5 are installed according to the condition that the rigidity of the outer layer part of the supporting conical wall 1 at each circumferential position is inconsistent and the rigidity distribution condition of a plurality of fusing units in the fusing part 6, and the rigidity of each circumferential position of the outer layer part of the supporting conical wall 1 is inconsistent by means of the rigidity distribution of the fusing part 6, so that the rigidity of each circumferential position of the complete supporting conical wall 1 including the inner layer part and the outer layer part is consistent.
Although the present invention has been described with reference to the above embodiments, it is not intended to limit the present invention, and those skilled in the art may make variations and modifications without departing from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a support awl wall, one end is used for supporting bearing, and the other end is used for connecting load-bearing machine casket, includes fusible section, fusible section includes bilayer structure, and wherein one deck is deformation portion, and the other deck is fusing portion, fusing portion set to with deformation portion undertakes load jointly, deformation portion sets to the fusing portion back flexible in order to reduce support the rigidity of awl wall, its characterized in that, fusing portion includes a plurality of fusing element of the discrete setting of circumference, the failure strength of a plurality of fusing element is at least partly different.
2. The support cone wall of claim 1 wherein the fuse portion is a fuse cone wall comprising two ends and a plurality of circumferentially discrete connecting arms connecting the two ends, the plurality of connecting arms having at least partially different failure strengths, the plurality of fuse units being provided by the plurality of connecting arms.
3. The supporting cone wall according to claim 2, wherein the fusing cone wall is disposed inside the deformation portion, and the two ends of the fusing cone wall are bolted to the deformation portion.
4. The supporting cone wall of claim 1 wherein the fusing portion is comprised of a plurality of connecting arms separated from each other and circumferentially discrete, the plurality of connecting arms having at least partially different failure strengths, the plurality of fusing units being provided by the plurality of connecting arms.
5. The supporting cone wall according to claim 4 wherein said plurality of connecting arms are disposed inside said deformation, said plurality of connecting arms being bolted to said deformation, respectively.
6. The support cone wall of claim 1 wherein the deformation comprises a folded configuration.
7. A fan rotor supporting structure is used for connecting a fan rotor and a force bearing casing and comprises a first supporting conical wall, a second supporting conical wall, a first bearing and a second bearing, wherein one end of the first supporting conical wall is connected with the force bearing casing, the other end of the first supporting conical wall supports the first bearing and supports one end of a fan shaft through the first bearing, one end of the second supporting conical wall is connected with the force bearing casing, the other end of the second supporting conical wall supports the second bearing and supports the other end of the fan shaft through the second bearing, and the fan rotor supporting structure is characterized in that the first supporting conical wall is the supporting conical wall in any one of claims 1-6.
8. A method for installing a supporting cone wall according to any one of claims 1 to 6, comprising:
correspondingly assembling a bearing case mounting end and a bearing mounting end;
obtaining the rigidity of each circumferential position of the support conical wall after assembly; and
installing a fusing part;
the installation fusing part adjusts the rigidity of each circumferential position of the supporting conical wall to be consistent by means of the distribution of a plurality of fusing units with different rigidity at least partially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111097990.1A CN115822780A (en) | 2021-09-18 | 2021-09-18 | Supporting conical wall, fan rotor supporting structure and supporting conical wall installation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111097990.1A CN115822780A (en) | 2021-09-18 | 2021-09-18 | Supporting conical wall, fan rotor supporting structure and supporting conical wall installation method |
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| CN115822780A true CN115822780A (en) | 2023-03-21 |
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| CN202111097990.1A Pending CN115822780A (en) | 2021-09-18 | 2021-09-18 | Supporting conical wall, fan rotor supporting structure and supporting conical wall installation method |
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| US6402469B1 (en) * | 2000-10-20 | 2002-06-11 | General Electric Company | Fan decoupling fuse |
| US20040063504A1 (en) * | 2002-09-26 | 2004-04-01 | Snecma Moteurs | Tension decoupler device |
| CN107061017A (en) * | 2016-02-11 | 2017-08-18 | 通用电气公司 | The rotor support system with Shape Memory Alloy member of gas-turbine unit |
| CN107780984A (en) * | 2016-08-31 | 2018-03-09 | 中国航发商用航空发动机有限责任公司 | Can be failed rotor support structure and aero-engine |
| CN111894737A (en) * | 2019-05-05 | 2020-11-06 | 中国航发商用航空发动机有限责任公司 | Rotor support structure and gas turbine |
| CN112049814A (en) * | 2019-06-06 | 2020-12-08 | 中国航发商用航空发动机有限责任公司 | Fan rotor support system and bearing support device that can lose efficacy of aeroengine |
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2021
- 2021-09-18 CN CN202111097990.1A patent/CN115822780A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6402469B1 (en) * | 2000-10-20 | 2002-06-11 | General Electric Company | Fan decoupling fuse |
| US20040063504A1 (en) * | 2002-09-26 | 2004-04-01 | Snecma Moteurs | Tension decoupler device |
| CN107061017A (en) * | 2016-02-11 | 2017-08-18 | 通用电气公司 | The rotor support system with Shape Memory Alloy member of gas-turbine unit |
| CN107780984A (en) * | 2016-08-31 | 2018-03-09 | 中国航发商用航空发动机有限责任公司 | Can be failed rotor support structure and aero-engine |
| CN111894737A (en) * | 2019-05-05 | 2020-11-06 | 中国航发商用航空发动机有限责任公司 | Rotor support structure and gas turbine |
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