CN209458041U - Connection structure and tail spray component - Google Patents

Abstract

The utility model provides connection structure and tail sprays component, and the component of different heat expansion coefficient can be connected, and connected component is allowed to keep good cooperation, sealing at high temperature.In the connection structure: the first component around axis setting includes pipe shaft portion and tube edge portion, and tube edge portion is radially extended to the outside relative to pipe shaft portion；Second component around axis setting includes axial part and radial part, and axial part surround setting in the peripheral side in pipe shaft portion；Multiple connection components are separately connected pipe shaft portion and the axial part of second component of first component, can be relatively movable between connection component and axial part；Elastic parts is arranged between radial part and tube edge portion, apply elastic force along axial to tube edge portion, to inhibit the shaking in connection component portion to axial, realizes the precise positioning installation of first component but be allowed in connection component or the second annular construction member because of temperature distortion when carry out activity.

Description

Connection structure and tail spray component

Technical field

The utility model relates to a kind of connection structures and tail to spray component.

Background technique

Component usually needs to be resistant to high temperature, such as exhaust system in aero-engine, the combustion that turbine is discharged Gas is discharged into atmosphere with the direction of certain speed and requirement, generates thrust.Big bypass ratio aero-engine ejector exhaust pipe usually by Two component compositions of tail spray and tail cone, the two together form the stream of engine gas discharge respectively as inner boundary and outer boundary Road.It is tied in view of high-temperature work environment and with the thermal deformation matching problem of adjacent parts, ejector exhaust pipe component and its adjacent installation Structure generallys use similar thermal expansion coefficient or identical high-temperature alloy material is made.Since there are high-temperature modulus for high-temperature alloy material The features such as low, density is big and poor chemical stability, is unfavorable for the promotion of aero-engine performance index, thus using high temperature resistant, Specific strength and the high ceramic matric composite of specific modulus prepare aeroplane engine tail spray component, can effectively solve the above problems.But It is that there are biggish thermal expansion coefficient difference, Yao Caiyong ceramic matric composite systems between ceramic matric composite and high temperature alloy Standby tail spray component must solve its thermal mismatch problem between adjacent high-temperature alloy installing component.

Therefore, this field need it is a kind of can structure it is simple, it is safe and reliable can be by the component phase of different heat expansion coefficient The connection structure of connection.

Utility model content

One purpose of the utility model is to provide a kind of connection structure, and the component of different heat expansion coefficient can be connected It connects, and connected component is allowed to keep good cooperation or sealing at high temperature.

One purpose of the utility model is to provide a kind of tail spray component, with the connection structure.

1st scheme is to provide a kind of connection structure, in which:

First component around axis setting includes pipe shaft portion and tube edge portion, and the tube edge portion is relative to court, the pipe shaft portion Radial outward expansion；

Second component around axis setting includes axial part and radial part, and the axial part is in the pipe shaft portion Peripheral side is around setting；

Multiple connection components are separately connected the pipe shaft portion of the first component and the axial part of the second component, described It can be relatively movable between connection component and the axial part；

Elastic parts is arranged between the radial part and the tube edge portion, and Xiang Suoshu tube edge portion applies elasticity along axial Power, to inhibit the shaking of the relatively described axial part of the connection component but be allowed in connection component or the second annular construction member because heated The activity is carried out when deformation.

2nd scheme includes aforementioned either a program, and is provided between thermal expansion between connection component and the first component Gap and/or cooperated in a manner of the taper-face contact conical surface.

3rd scheme includes aforementioned either a program, and the first component is made of ceramic matric composite.

4th scheme includes aforementioned either a program, and the connection component is made of high-temperature alloy material.

5th scheme includes aforementioned either a program, and the second component is made of high-temperature alloy material.

6th scheme includes aforementioned either a program, and the connection component includes connecting pin, ring set, and the pipe shaft portion exists There are multiple first connecting holes of corresponding multiple connection components, the axial part has correspondence in its circumferential direction in its circumferential direction Multiple second connecting holes of multiple connection components, first connecting hole and the second connection axially bored line are along the first component It is radial；For each connection component, the connecting pin slidably cooperates with second connecting hole, and connects the ring Set, the ring set are placed in first connecting hole, have the outer groove opposite with the hole edge of first connecting hole；It is described The side of hole edge is inner conical surface, and correspondingly the side wall of the outer groove is male cone (strobilus masculinus), and the hole edge is embedded in the outer groove In and inner conical surface be engaged with the male cone (strobilus masculinus), exist between the inner peripheral surface of the hole edge and the groove bottom of the outer groove The expansion gap.

7th scheme includes aforementioned either a program, and the ring set includes the first ring set and the second ring set, first ring Set has the first ring set axle portion and the first ring set radial flange, and second ring set has the second ring set axle portion and the second ring set diameter To flange, the inner circumferential side of the first ring set axle portion is fixedly connected with the connecting pin, peripheral side and the second ring set axle portion Inner circumferential side be fixedly connected, the first ring set radial flange and the second ring set radial flange and the second ring set axis The peripheral side in portion limits the outer groove jointly.

8th scheme includes aforementioned either a program, and the hole edge and the outer groove respectively in side in inclined-plane and It is in plane side in the other side, fills in gasket between hole edge and the plane side of the outer groove described in the lozenges.

9th scheme includes aforementioned either a program, and the first ring set axle portion has external screw thread and internal screw thread, with the connection Pin, the second ring set axle portion are threadedly coupled respectively.

10th scheme includes aforementioned either a program, and the tube edge portion is disposed relative to the axis inclination.

11st scheme includes aforementioned either a program, and second annular construction member includes the first mounting flange and the second Method for Installation Orchid, first mounting flange include the axial part, and first mounting flange further includes the first radial extension, and described Two mounting flanges include the second radial extension, and first radial extension and second radial extension are set opposite to each other It sets and limits the radial part jointly, in peripheral side by fastening between first radial extension and second radial extension Part connects and has gap in inner circumferential side, and the tube edge portion enters in the gap；In in the gap, described second is radial The elastic parts built in the extension opposite side opposite with first radial extension and ring is obturaged, the elastic parts Radial outside is more leaned on relative to the ring of obturaging, the elastic parts applies elastic force in the one side in the tube edge portion, the envelope The side in tube edge portion described in Yan Huanyu is in sealing contact.

12nd scheme includes aforementioned either a program, the phase of the side in the tube edge portion and second radial extension Opposite side is parallel.

13rd scheme includes aforementioned either a program, and the elastic parts includes spring and spring shield, the spring shield Cover is integral ring-shaped structure, and multiple elastic parts share spring shield, contact with the side in the tube edge portion, and will contact The face at place is arranged to smooth surface.

14th scheme provides a kind of tail spray component, including connection structure described in aforementioned either a program, the first component Covering is sprayed for tail.

By the activity cooperation between connection component and the axial part of second component, tail spray covering or first component are realized Ceramic matric composite tail spray component and metal are released during variation of ambient temperature with the mechanical connection of second component Thermal deformation mismatch between connector inhibits the shaking of the relatively described axial part of the connection component by elastic parts, realizes The precise positioning of the first component is installed, and solves load relaxation and vibration problem, ensure that each installed load contact transmitting Face remains tight fit.

It is fitted closely by obturaging ring with tube edge portion, solves sealing problem, guarantee that high-temperature fuel gas will not be through metal parts Clearance leakage between ceramic matrix composite component.

In addition, spray covering form using the simple ceramic matric composite tail of structure, reduce preparation molding, it is subsequent plus The difficulty of aspect is implemented in work and installation, and has higher coupling stiffness and intensity, to ceramic matric composite tail spray component The promotion of engineer application and aero-engine performance index has important value.

Detailed description of the invention

The above and other feature, property and advantage of the utility model will be by with reference to the accompanying drawings and examples Description and become readily apparent from, it should be noted that attached drawing only as an example, its be not be to be drawn according to the condition of equal proportion System, and should not be construed as limiting in this, as the protection scope to the utility model actual requirement, in which:

Fig. 1 is the perspective view of tail spray component.

Fig. 2 is the decomposition view of tail spray component.

Fig. 3 is the partial perspective view of tail spray component.

Fig. 4 is the partial enlarged view in Fig. 3 at I.

Fig. 5 is the cross-sectional view of tail spray component.

Fig. 6 is the cross-sectional view after tail spray component temperature distortion.

Fig. 7 is the cross-sectional view of tail spray covering or first component.

Fig. 8 is the cross-sectional view of the ring set of connection component, gasket.

Specific embodiment

It is following to disclose the embodiment or embodiment of subject technology scheme described in a variety of different implementations.For simplification The specific example of each element and arrangement is described below in disclosure, and certainly, these are only example, is not to this The protection scope of utility model is limited.Such as the fisrt feature then recorded in the description above second feature or It is formed above, may include the embodiment that the first and second features are formed by way of directly contacting, also be included in The embodiment that supplementary features are formed between one and second feature, to can not directly be contacted between the first and second features. In addition, in these disclosures may in different examples repeat reference numerals and/or letter.The repetition is in order to brief With it is clear, itself do not indicate each embodiment being discussed and/or interstructural relationship.Further, when first element is It is described with the mode for being connected with second element or combining, which includes that the first and second elements are connected directly or are bonded to each other Embodiment, also include made using one or more other intervening elements additions the first and second interelements ground connection be connected or that This is combined.

In the later-described embodiments, by taking tail sprays component as an example, a kind of connection structure is described, which can be by different heat The component of the coefficient of expansion is connected, and connected component is allowed to keep good cooperation at high temperature.

Fig. 1 is the perspective view of tail spray component, and Fig. 2 is the decomposition view of tail spray component.As depicted in figs. 1 and 2, tail sprays component Including first component, second component.First component is tail spray covering 1, and second component includes preceding mounting flange 3 and rear mounting flange 2.It is forward and backward, radially, axially etc. directional terminologies with engine axis and jet direction are reference, independently of tail spray component In embodiment, corresponding second mounting flange of preceding mounting flange 3, corresponding first mounting flange of rear mounting flange 2, or in independence In the embodiment of tail spray component, the directional terminologies such as forward and backward unless stated otherwise, are used only for difference technical term, but not Meaning is limited with actual orientation.

Preceding mounting flange 3 and rear mounting flange 2 are assembled into second component.First component or tail spray covering 1 have pipe shaft Portion 10 and tube edge portion 11.Radially outward extend relative to pipe shaft portion 10 in tube edge portion 11.In one embodiment, tube edge portion 11 is omited Microfacies tilts axis, i.e., close to 90 ° of position, but general is not 90 °.It is possible thereby to obtain aftermentioned various benefits, example It such as can guarantee in expanded by heating, the mating surface distance holding of tube edge portion 11 and second component or preceding mounting flange 3 is substantially not Become.As shown in figure 5, rear mounting flange 2 has axial part 21 and the first radial extension 22, the first radial extension 22 is in axial direction Radially outward stretch the axial part that axial part 21 is configured to entire second component on the basis of portion 21, circular first component or The pipe shaft portion 10 of tail spray covering 1.

Tail spray covering 1 is connect by multiple connection components with the second component.First component or tail spray covering 1 surround one Axis setting is the axis of engine for tail spray axis of covering 1.First component or tail spray covering 1 by second component or Mounting flange 2 is surround after person.In first component, circumferentially distributed multiple link positions of second component, connection component is in these positions It sets and connects first component with second component.

The fit system of the rear mounting flange 2 of connection component and second component be it is movable, be in one embodiment It can radially slide, activity at least has a radial component in another embodiment, described movable to allow to connect for providing The deformation space of 2 temperature distortion of component or/and rear mounting flange, prevents thermal deformation mismatch.Embodiment as shown in Figure 2, Connection component includes connecting pin 6.Corresponding one in multiple second connecting holes 210 circumferentially distributed with axial part 21 of connecting pin 6 It is slidably matched, glide direction is radial.

It is outer except through the connection of multiple connection components between first component and second component, also it is associated with by elastic parts. Elastic parts is shown in Fig. 2, Fig. 4, Fig. 5 comprising spring 10 and spring shield 4.

Elastic parts applies elastic force and sprays on covering 1 in first component or tail, due to connecting pin 6 and the second connecting hole 210 are slidably matched, therefore connection component and/or first component may be made relative to second component in engine working process There are shaking (or vibration), which inhibits the shaking of the relatively described axial part of connection component, and then inhibits tail spray covering 1 Vibration, realizes the precise positioning installation of first component, but is allowed in connection component or the second annular construction member simultaneously because of temperature distortion Activity described in Shi Jinhang.Ensure to guarantee between first component and second component that thermal mismatching deformation can be released smoothly by connection component It puts, is compressed further through elastic component and ensure that first component or the accurate installation of tail spray covering 1 position.

The thermal expansion coefficient of first component is lower than connection component and/or second component.Implementation for tail spray component Mode, tail spray covering 1 are made of ceramic matric composite, in one embodiment, by being silicon carbide fibre enhancing carbonization Silicon ceramic matric composite or Ceramic Matrix Composites Reinforced by Carbon Fibers or oxide enhancing oxide ceramics base are compound Material is made, and thus obtained benefit is density lower than metal parts, and corrosion resistance is better than metal parts, is conducive to be promoted and start Machine performance indicator.Each component part of connection component and/or second component is that identical material is constituted in one embodiment, And different materials are constituted in another embodiment, are that the identical material in part is constituted in yet another embodiment, material Select high-temperature alloy material.

It is provided with expansion gap between connection component and first component 1 and/or is cooperated in a manner of the taper-face contact conical surface. Expansion gap provides deformation space of the connection component in temperature distortion, and lozenges or cone match allow connection component heated It is tangentially slided with respect to first component 1 along the conical surface when deformation, due to there is the space of deformation or sliding caused by allowing to deform, because This can further solve the thermal deformation mismatch problems between the element that different materials form during temperature inversion, guarantee deforming The installation pretightening force between connection component and tail cone covering 1 remains unchanged in the process.As shown in figure 5, connection component further includes One ring set 7, the second ring set 9, the first ring set 7 and the second ring set 9 collectively constitute a ring set, the inner circumferential side of the ring set and connecting pin 6 connections, and peripheral side sprays in circumferentially distributed multiple first connecting holes 101 of covering 1 corresponding one with first component or tail Hole edge connection.As shown in Figure 6 and Figure 7, the hole edge of the first connecting hole 101 includes first side 102, second side 103 And inner peripheral surface 104.Second side 103 is an inner conical surface, and conical countersunk head opening is consequently formed.

First ring set 7 has the first ring set axle portion 71 and the first ring set radial flange 72, and the second ring set 9 has the second ring set Axle portion 91 and the second ring set radial flange 92.Referring concurrently to Fig. 6 and Fig. 8, the inner circumferential side 73 of the first ring set axle portion 71 and connecting pin 6 It is fixedly connected, peripheral side 74 is fixedly connected with the inner circumferential side of the second ring set axle portion 91.First ring set radial flange 72 and the second ring The peripheral side of set radial flange 92 and the second ring set axle portion 91 limits an outer groove 81, the inner surface of outer groove 81 jointly For concave lozenges.The medial surface of second ring set radial flange 92 is male cone (strobilus masculinus).

Such as Fig. 6 to Fig. 8, for each connection component, connecting pin 6 slidably cooperates with the second connecting hole 210, and connects The ring set that first ring set 7 and the second ring set 9 are assembled into, the ring set are placed in the first connecting hole 101, are had and the first connecting hole The opposite aforementioned outer groove 81 of 101 hole edge.Since the cross section of hole edge is wedge-type shape, the correspondingly cross of outer groove 81 Section is also wedge-type shape, and the inner conical surface both in hole edge insertion outer groove 81 is engaged with male cone (strobilus masculinus), and cone angle is settable At the angle that friction self-locking does not occur, to guarantee that 92 conical surface of the second ring set radial flange can be along the first connecting hole when heating up expansion 101 second side 103 is slided, outside i.e. the second ring set axle portion 91 of groove bottom of the inner peripheral surface 104 and outer groove 81 of hole edge There are expansion gaps between circumferential surface, due to expansion gap relative narrower in figure, do not show.It is possible thereby to obtain Benefit be that first component is connected on second component, even if connection pretightning force under high temperature environment will not be substantive Variation, because the cooperation of two lozenges and expansion gap allow the mating surface of different materials to cause there are temperature distortion Sliding, and the slip angle is just parallel with 103 frustoconical bevel angle of second side.In addition, each seamed edge in hole edge is all set In outer groove 81, therefore it is more to guarantee that the hole edge of such as ceramic matric composite class is not subject in use Abrasion load.

In one embodiment, connecting pin 6 is bolt structure, and the first ring set axle portion 71 has internal screw thread and outer spiral shell Line is threadedly coupled with connecting pin 6 and the second ring set 9 respectively.Simple and easy for installation good of assembling structure can so be obtained Place.

In one embodiment, filling between the first side 102 of hole edge and the first ring set radial flange 72 Gasket 8 is conducive to increase pretightning force transmission area, reduces hole edge stress level.

As shown in Figure 6 and Figure 7, the cross-sectional configuration form of the first connecting hole 101 is simple, therefore convenient for machining.

Fig. 5 is returned to, the first mounting flange 2 further includes the first radial extension 22, and the second mounting flange 3 includes second radial Extension 32, the radial direction of the first radial extension 22 and the common restriction second component positioned opposite to each other of the second radial extension 32 Portion.It is for example bolted by fastener between first radial extension 22 and the second radial extension 32 in peripheral side and in inner circumferential Side has gap 30, and the tube edge portion 11 of first component or jet pipe covering 1 enters in gap 30.In in gap 30, second is radial The opposite side opposite with the first radial extension 22 of extension 32 is by mounting groove built-in elastic component and obturages ring 5.Elasticity Component includes spring 10 and shield 4, and for elastic parts relative to ring 5 is obturaged more by radial outside, elastic parts applies elastic force in pipe The one side of edge 11, obturages ring 5 and the side in tube edge portion 11 is in sealing contact.Obturaging ring material can be graphite or resistance to height Warm wire pressed material, the frontside contacts of its rear end and tube edge portion 11 obturage combustion gas inside tail jet road for being formed, It flows out in the gap that spray combustion gas will not through tail between covering 1 and the second radial extension 32 of the second mounting flange.

The assembly method of nozzle component is described below.

As shown in Figures 1 to 8, the first connecting hole being first put into the second ring set 9 from inside to outside when installation on tail spray covering 1 101 conical countersunk head opening, then 91 peripheral side of the second ring set axle portion of each second ring set 9 is covered in 1 outside of tail spray covering First ring set axle portion 71 of the first ring set 7 is placed in the second ring of the second ring set 9 then in 8 radial outside of gasket by Upper gasket 8 Cover axle portion 91.The periphery of second ring set axle portion 91 of the inner peripheral surface and the second ring set 9 of the first ring set axle portion 71 of the first ring set 7 Connection type between surface is threadedly engaged installation as previously mentioned, may be selected to be.By above-mentioned installation, just by tail spray covering 1 The hole edge of first connecting hole 101 is placed in outer groove 81, is equivalent to and is wrapped up with metal parts, and subsequent use is reduced In the process to the abrasion of ceramic matric composite.

Before then spring 10 is installed in the spring groove of mounting flange 3, the spring groove is along the circumferential equal of engine axis It is even to be distributed several, number can be adjusted according to spring stiffness, finally meet elastic force requirement.

Spring shield 4 is loaded onto 10 other end of spring.In one embodiment, which is domain structure, Side is annular groove, and for being coupled with spring 10, another lateral section outer contour shape is smooth surface, is used for and tail The leading flank for spraying the tube edge 11 of covering 1 is coupled.The installation of ring 5 will then be obturaged and obturage ring installation on preceding mounting flange 3 In slot, obturages 5 another side of ring and the leading flank of the tube edge 11 of tail spray covering 1 is coupled, realization obturages function to combustion gas. 3 rear side of mounting flange before then the tail for being equipped with ring set 7,9 and gasket 8 spray covering 1 is installed on axially forward along engine, And keep coaxial with preceding mounting flange 3, then rear mounting flange 2 is installed on to the axial direction of tail spray covering 1 axially forward along engine Portion 10, and before being used in conjunction with by the mounting hole of its 22 peripheral side of the first radial extension and preceding mounting flange 3 and being bolted to On the casing component of side.It is finally radial from outside to inside by installation connecting pin 6 along engine.When the reality that connecting pin 6 is pin feature When applying mode, connecting pin 6 is screwed into the internal screw thread of the first ring set 7, and makes the outside cylindrical surface of connecting pin 6 and rear Method for Installation The second connecting hole 210 in the axial part 21 of orchid 2 is slidably matched, and so far completes the installation of nozzle component.

Comparison diagram 5 and Fig. 6, the tube edge portion 11 of tail spray covering 1 and engine axis are arranged at angle, are not generally 90 °, can Guarantee that tail spray is covered when the axis and rear 3 front end face distance of mounting flange for installing connecting pin 6 are increased to L2 by L1 due to thermal expansion For skin 1 radially relative to preceding mounting flange 3 to contract, most finality sprays the tube edge portion 11 of covering 1 and the cooperation of preceding mounting flange 3 The distance in face remains unchanged, and helps to ensure that the sealing effect for obturaging ring 5.

It is also to be appreciated that from Fig. 5 and embodiment shown in fig. 6 in temperature change, tail sprays covering 1 by fixing it On connecting pin 6 radially slided in the second connecting hole 210 of the axial part 21 of rear mounting flange 2 along engine, release tail The radially thermal mismatching for spraying covering 1 and rear mounting flange 2 deforms.

From Fig. 5 and embodiment shown in fig. 6 be also to be appreciated that due to there are spring 10 provide along engine shaft to Elastic force, connecting pin 6 can be close to the side of the second connecting hole 210, play the role of the accurate positioning that covering 1 is sprayed to tail, eliminate tail spray The vibration that covering may occur in the operating condition.

Mechanism completely eliminates the thermal deformation inside mechanical connecting structure described in temperature changing process by above-mentioned design Mismatch problems, while also solving the problems, such as the accurate positioning of ceramic matric composite tail spray component.

Pass through previous embodiment it will be appreciated that, connection component and second component use metal material, and first component uses Ceramic matric composite, since the thermal expansion coefficient of metal material is greater than ceramic matric composite, first in temperature changing process The thermal expansion amount of ring set and the second ring set be different from cooperation tail spray covering the first connecting hole, by design metal under ring set with Tail sprays the tilt angle and related geometric dimension of the mounting hole opening circular conical surface on the inside of covering, can make temperature changing process In the first ring set, the second ring set relative to the contact surface of the first connecting hole circumferentially opposite sliding only occurs, installation pretightening force will not It changes, while mounting hole diametrical direction solves thermal change between the two in temperature changing process there are certain installation gap Shape mismatch problems.

By previous embodiment, it is also to be appreciated that in order to solve installation connecting pin and rear mounting flange axial part it Between vibration problem due to caused by clearance fit in the operating condition, spring is provided on preceding mounting flange, and pass through Pressure is applied in the tube edge portion of tail spray covering by spring shield, limits tail spray covering along the freedom of engine axial direction Degree, and certain mounting pin friction normal pressure, the vibration radial and axial along engine of limitation covering are provided.By the way that spring is protected Cover is designed to smooth surface with tail spray covering contact surface, so that opposite sliding Shi Keshun occurs in tail spray covering and preceding mounting flange Benefit carries out, and the tube edge of tail spray covering and engine axis angle are designed to the not angle for 90 degree, may be implemented to protect in spring Contact force is kept constant in cover sliding process opposite with tail spray covering.By obturaging ring structure in the setting of spring radially inner side, protect Having protected metal mounting structure will not be corroded by combustion gas, also ensure that combustion gas discharge will not influence motor power because of leakage.

Above-mentioned mechanical connection scheme, which had not only passed through clearance fit or had been slidably matched, guarantees that thermal mismatching deformation can smoothly discharge, but also logical It crosses elastic parts and compresses the accurate installation positioning that ensure that ceramic matric composite tail spray component；Ceramic base is compound in connection structure The spray stressed-skin construction form of tail made of material is simple and need to only carry out installation hole machined, reduces the preparation molding difficulty of component And difficulty of processing.In sliding surface mutual in thermal deformation process mainly between metal parts, or using the circle that friction is small Cambered surface contact, reduces the abrasion of ceramic matric composite covering to the maximum extent, and component is made to have longer service life.Tail The tube edge and the double-deck mounting flange for spraying covering front end form sandwich installation condition, increase the circumferential rigid of entire tail spray component Degree, and then improve the strength reliability of entire component.

As shown in Figure 5 and Figure 6, it is tubaeform circular cone revolving meber that tail spray covering 1, which is tail spray covering, and the big end opening in front is The metal casing component of installation position, connection component and front made of metal installs connection；The rear portion that tail sprays covering 1 is small Combustion gas outlet is collectively formed in end opening and tail cone outer surface not shown in the figure.

Although the utility model is disclosed as above with above-described embodiment, its be not for limiting the utility model, it is any Those skilled in the art without departing from the spirit and scope of the utility model, can make possible variation and modification.Cause This, all contents without departing from technical solutions of the utility model, according to the technical essence of the utility model to above embodiments institute Any modification, equivalent variations and the modification made, each fall within the protection scope that the utility model claims are defined.

Claims (14)

1. a kind of connection structure, comprising:

Around the first component of axis setting, including pipe shaft portion and tube edge portion, the tube edge portion is relative to the pipe shaft portion towards diameter To extending to the outside；

Around the second component of axis setting, including axial part and radial part, the axial part is in the outer of the pipe shaft portion Side is around setting；

Multiple connection components are separately connected the pipe shaft portion of the first component and the axial part of the second component, the connection It can be relatively movable between component and the axial part；

Elastic parts is arranged between the radial part and the tube edge portion, and Xiang Suoshu tube edge portion applies elastic force along axial, with Inhibit the shaking of the relatively described axial part of the connection component but is allowed in connection component or the second annular construction member because of temperature distortion Activity described in Shi Jinhang.

2. connection structure as described in claim 1, which is characterized in that be provided with heat between connection component and the first component Expansion clearance and/or cooperated in a manner of the taper-face contact conical surface.

3. connection structure as described in claim 1, which is characterized in that the first component is made of ceramic matric composite.

4. connection structure as described in claim 1, which is characterized in that the connection component is made of high-temperature alloy material.

5. connection structure as described in claim 1, which is characterized in that the second component is made of high-temperature alloy material.

6. connection structure as described in claim 1, which is characterized in that the connection component includes connecting pin, ring set,

The pipe shaft portion has multiple first connecting holes of corresponding multiple connection components in its circumferential direction, and the axial part exists Multiple second connecting holes with corresponding multiple connection components in its circumferential direction, first connecting hole and the second connecting hole Axis is arranged radially along the first component；

For each connection component, the connecting pin slidably cooperates with second connecting hole, and connects the ring Set,

The ring set is placed in first connecting hole, has the outer groove opposite with the hole edge of first connecting hole；

The side of the hole edge is inner conical surface, and correspondingly the side wall of the outer groove is male cone (strobilus masculinus), and the hole edge is embedded in institute It states in outer groove and inner conical surface is engaged with the male cone (strobilus masculinus), the inner peripheral surface of the hole edge and the groove bottom of the outer groove Between there are expansion gaps.

7. connection structure as claimed in claim 6, which is characterized in that the ring set includes the first ring set and the second ring set, institute The first ring set is stated with the first ring set axle portion and the first ring set radial flange, second ring set has the second ring set axle portion and the The inner circumferential side of two ring set radial flanges, the first ring set axle portion is fixedly connected with the connecting pin, peripheral side and described second The inner circumferential side of ring set axle portion is fixedly connected, the first ring set radial flange and the second ring set radial flange and described the The peripheral side of two ring set axle portions limits the outer groove jointly.

8. connection structure as claimed in claim 6, which is characterized in that the hole edge and the outer groove are in side respectively Inclined-plane and the other side be in plane side, fill in gasket between the hole edge and the plane side of the outer groove.

9. connection structure as claimed in claim 7, which is characterized in that the first ring set axle portion has external screw thread and interior spiral shell Line is threadedly coupled respectively with the connecting pin, the second ring set axle portion.

10. connection structure as described in claim 1, which is characterized in that the tube edge portion is disposed relative to the axis and inclines Tiltedly.

11. connection structure as described in claim 1, which is characterized in that second annular construction member includes the first mounting flange With the second mounting flange, first mounting flange includes the axial part, and first mounting flange further includes first radial Extension, second mounting flange include the second radial extension, and first radial extension and second radial direction are prolonged Extending portion is positioned opposite to each other to limit the radial part jointly, between first radial extension and second radial extension It is connected in peripheral side by fastener and there is gap in inner circumferential side, the tube edge portion enters in the gap；

In in the gap, the bullet built in second radial extension opposite side opposite with first radial extension Property component and obturage ring, the elastic parts more leans on radial outside relative to the ring of obturaging, and the elastic parts applies bullet Power is described to obturage ring and the side in the tube edge portion is in sealing contact in the one side in the tube edge portion.

12. connection structure as claimed in claim 11, which is characterized in that the side in the tube edge portion and second diameter It is parallel to the opposite side of extension.

13. connection structure as claimed in claim 11, which is characterized in that the elastic parts includes spring and spring shield Cover, the spring shield are integral ring-shaped structure, and multiple springs share spring shield, connect with the side in the tube edge portion Touching, and the face of contact position is arranged to smooth surface.

14. a kind of tail sprays component, which is characterized in that described including the connection structure as described in any one of claims 1 to 12 First component is that tail sprays covering.