CN114857142A - Connecting structure between different material members - Google Patents
Connecting structure between different material members Download PDFInfo
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- CN114857142A CN114857142A CN202210519105.2A CN202210519105A CN114857142A CN 114857142 A CN114857142 A CN 114857142A CN 202210519105 A CN202210519105 A CN 202210519105A CN 114857142 A CN114857142 A CN 114857142A
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- connecting member
- connecting structure
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- 239000000463 material Substances 0.000 title claims abstract description 36
- 239000002131 composite material Substances 0.000 claims description 14
- 239000007769 metal material Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 16
- 230000008646 thermal stress Effects 0.000 abstract description 5
- 239000000919 ceramic Substances 0.000 description 8
- 239000000835 fiber Substances 0.000 description 7
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 7
- 229910010271 silicon carbide Inorganic materials 0.000 description 7
- 239000011153 ceramic matrix composite Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011204 carbon fibre-reinforced silicon carbide Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
- F16B5/0241—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread with the possibility for the connection to absorb deformation, e.g. thermal or vibrational
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/0004—Joining sheets, plates or panels in abutting relationship
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/10—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of bayonet connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/20—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using bayonet connections
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Abstract
The invention provides a connecting structure between different material components, comprising: a front connecting member; the mounting edge and the front connecting component are made of the same material, the mounting edge and the front connecting component are fixedly connected through bolts, and a clamping groove is formed between the mounting edge and the front connecting component; the rear connecting component and the front connecting component are made of dissimilar materials, and the rear connecting component is provided with a flanging which is in clamping fit with the clamping groove. Through setting up preceding connecting elements, installation limit and back connecting elements to make installation limit and preceding connecting elements adopt the same material to make, make back connecting elements and preceding connecting elements adopt the xenogenesis material to make and with installation limit joint, can effectively solve the thermal stress problem that leads to because of the coefficient of thermal expansion difference, thereby can improve the security of connecting.
Description
Technical Field
The invention relates to the technical field of aero-engines, in particular to a connecting structure between different material components.
Background
With the continuous development of aviation technology, the inlet temperature of a turbine is continuously improved, the inlet temperature of the turbine of a new-generation engine can reach more than 2000K at most, so that the working temperature of a hot-end component is continuously improved, more cooling air is needed to ensure the safe working of the hot-end component, but the performance of the engine is reduced due to the increase of air entraining, and therefore, a material capable of resisting higher temperature is an urgent need for the development of an advanced engine. The ceramic used as a structural material has the characteristics of high temperature resistance, oxidation resistance, good high-temperature creep resistance, high hardness, wear resistance, small linear expansion coefficient and the like, and has the defects of brittleness and poor plastic deformation capability. At present, the strength and toughness of the composite material are enhanced by adopting a continuous fiber reinforcement method, such as carbon fiber/silicon carbide base (C/SiC), silicon carbide fiber/silicon carbide base (SiC/SiC), carbon fiber/silicon nitride base (C/Si3N4), carbon fiber/aluminum oxide base (C/Al2O3), silicon carbide fiber/aluminum oxide base (SiC/Al2O3) and other composite materials. The strength and toughness of the material are enhanced and good high-temperature performance is kept by a fiber reinforcement mode.
On a hot end component, the application of the ceramic matrix composite becomes a necessary development trend, but the linear expansion coefficient, the thermal conductivity and the like of the ceramic matrix composite are greatly different from those of the high-temperature alloy, and how to realize the connection of the ceramic matrix composite and the high-temperature alloy is a technical problem. In the traditional design, a ceramic matrix composite center cone is taken as an example, and is connected with a ceramic matrix flange through a metal flange and then fastened by bolts and nuts. In the working process, because the linear expansion coefficients of the ceramic base composite material and the metal base composite material are greatly different, the thermal deformation of the metal mounting edge is obviously larger than that of the ceramic base composite material, and in order to adapt to the inconsistency of the thermal deformations of the ceramic base composite material and the metal base composite material, a kidney-shaped hole is usually formed in the ceramic base flange, an expansion gap is reserved, and the damage of a bolt hole in the ceramic base composite material in the working process is avoided. However, due to the toughness of the fibers, such large turns may cause fiber breakage, resulting in a decrease in strength of the member; meanwhile, due to the existence of the temperature gradient in the height (radial) direction of the ceramic-based flange, larger circumferential thermal stress can be brought, and failure modes such as matrix cracking, interface debonding, fiber fracture and the like can occur in a local area, so that the working safety of the component is influenced.
Disclosure of Invention
In view of this, embodiments of the present disclosure provide a connection structure between different material members, so as to achieve the purpose of improving connection safety.
The embodiment of the specification provides the following technical scheme: a connecting structure between different material members, comprising: a front connecting member; the mounting edge and the front connecting component are made of the same material, the mounting edge and the front connecting component are fixedly connected through bolts, and a clamping groove is formed between the mounting edge and the front connecting component; the rear connecting component and the front connecting component are made of dissimilar materials, and the rear connecting component is provided with a flanging which is in clamping fit with the clamping groove.
Furthermore, the installation limit is a plurality of, along the circumference direction interval equipartition of back connecting elements.
Further, the both ends on every installation limit all are provided with the mounting groove, and the mounting groove correspondence on two adjacent installation limits is connected and is formed accommodation space, and connection structure between the abnormal material component still includes the clamp plate, and the clamp plate is fixed to be set up in accommodation space and be used for two adjacent installation limits of fixed connection, and the circumference of a plurality of installation border back connection component forms whole ring structure.
Furthermore, the rear connecting component is provided with a first positioning hole, the mounting edge is provided with a second positioning hole, the first positioning hole corresponds to the second positioning hole in position, and the connecting structure between the different-material components further comprises a pin which is arranged in the first positioning hole and the second positioning hole in a penetrating mode and used for limiting circumferential rotation displacement of the rear connecting component.
Furthermore, the connecting structure between the different material members further comprises a gasket, the gasket is sleeved outside the pin, and a first lock screw hole is formed in the gasket; the tail end of the pin is provided with a second lock screw hole, and the first lock screw hole corresponds to the second lock screw hole in position and is fixed through a lock screw.
Furthermore, the rear connecting component also comprises a cylinder body, the cylinder body is connected with the flanging edge, and the included angle between the cylinder body and the flanging edge is an acute angle.
Furthermore, the front connecting component and the mounting edge are both made of metal materials, and the rear connecting component is made of composite materials.
Compared with the prior art, the beneficial effects that can be achieved by the at least one technical scheme adopted by the embodiment of the specification at least comprise:
1. the composite material is adopted to receive heat load, the metal material is not contacted with fuel gas, the advantages of high use temperature of the composite material and high yield strength of the metal material are exerted, and the reliable work of the composite material and the metal material in a high-temperature environment can be realized;
2. the invention adopts the sectional metal mounting edge to release the circumferential thermal stress caused by the radial temperature gradient on one hand, and on the other hand, the mounting edge still keeps the structure of a whole ring through the connection of the pressure plate, the bolt and the nut, and has the required strength and rigidity;
3. the radial connecting pin does not bear axial pneumatic load any more, and mainly plays a role in circumferential positioning, so that the acting force on the pin is greatly reduced, and the reliability is improved;
4. according to the invention, through the design of the pressure plate and the mounting edge groove, the mounting edges of the front component and the rear component are kept to be equal in thickness in the whole circumferential direction, the fasteners are ensured to adopt the same specification, and the cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a mounting edge segment structure according to an embodiment of the present invention;
FIG. 3 is a schematic illustration of a pin and shim installation according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a mounting groove according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a pin according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a gasket structure according to an embodiment of the invention.
Reference numbers in the figures: 1. a front connecting member; 2. a rear connecting member; 3. a bolt; 4. a nut; 7. installing edges; 8. a rear connecting member; 9. a first gap; 10. a second gap; 11. a first positioning hole; 12. a second positioning hole; 13. pressing a plate; 15. a gap; 16. a pin; 17. a second lockwire hole; 18. a gasket; 19. a first lockwire hole; 20. locking the wire; 21. mounting grooves; 71. a first mounting edge; 72. a second mounting edge; 73. a third mounting edge; 141. a first bolt hole; 142. a second bolt hole; 143. a third bolt hole; 144. a fourth bolt hole; 145. a fifth bolt hole; 146. and a sixth bolt hole.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 6, an embodiment of the present invention provides a connection structure between different material members, including: a front connecting member 1, a mounting edge 7 and a rear connecting member 8. The mounting edge 7 and the front connecting component 1 are made of the same material, the mounting edge 7 and the front connecting component 1 are fixedly connected through a bolt 3, and a clamping groove is formed between the mounting edge 7 and the front connecting component 1; the rear connecting component 8 and the front connecting component 1 are made of dissimilar materials, the rear connecting component 8 is provided with a flanging edge, and the flanging edge is in clamping fit with the clamping groove.
Through setting up preceding connecting elements 1, installation limit 7 and back connecting elements 8 to make installation limit 7 and preceding connecting elements 1 adopt the same material to make, make back connecting elements 8 and preceding connecting elements 1 adopt dissimilar material to make and with the installation limit joint, can effectively avoid the thermal stress problem that leads to because of the coefficient of thermal expansion difference, thereby can improve the security of connecting.
The front connecting member 1 and the mounting edge 7 are made of metal materials, and the rear connecting member 8 is made of composite materials. In the embodiment, the front connecting member 1 is made of high-temperature alloy, the rear connecting member 8 is made of ceramic matrix composite, and the mounting edge 7 is made of high-temperature alloy. A first gap 9 and a second gap 10 exist between the rear connecting member 8 and the mounting edge 7, and the difference in thermal expansion between the ceramic matrix composite and the metal material can be released in the gaps. The rear connecting member 8 has a turned edge, and the turned edge inner diameter R2, the turned edge corner inner diameter R4, the front section outer diameter R1 of the mounting edge 7, and the rear section maximum outer diameter R3 of the mounting edge 7 satisfy the relationship R1< R2< R3< R4.
The mounting edges 7 are uniformly distributed at intervals along the circumferential direction of the rear connecting member 8. The both ends of every installation limit 7 all are provided with mounting groove 21, and the mounting groove 21 of two adjacent installation limits 7 corresponds and connects and form accommodation space, and connection structure between the abnormal material component still includes clamp plate 13, and clamp plate 13 is fixed to be set up in accommodation space and be used for the adjacent two installation limits 7 of fixed connection, and a plurality of installation limits 7 form whole ring structure along the circumference of back connecting elements 8.
In the embodiment of the invention, the mounting edge 7 is segmented in the circumferential direction and is divided into three segments, the three segments are composed of a first mounting edge 71, a second mounting edge 72, a third mounting edge 73 and a pressure plate 13, and the first mounting edge 71, the second mounting edge 72 and the third mounting edge 73 can be consistent in structure or different in structure and can be adjusted according to design requirements. Each section of mounting edge is provided with a bolt hole for mounting the front connecting member 1. The first mounting edge 71, the second mounting edge 72, and the pressing plate 13 are engaged with the front connection member 1 at the first bolt holes 141 and the second bolt holes 142; the second mounting edge 72, the third mounting edge 73, the pressure plate 13 are combined with the front connecting member 1 at the third bolt hole 143 and the fourth bolt hole 144; the third mounting edge 73, the first mounting edge 71, and the pressure plate 13 are engaged with the front attachment member 1 at the fifth bolt hole 145 and the sixth bolt hole 146.
Preferably, a gap 15 is designed between each section of the mounting edge, so as to ensure that the mounting edge 7 can thermally expand at high temperature and release circumferential thermal stress generated by radial temperature difference; and the three sections of mounting edges are still in a whole ring structure after being connected with the pressure plate 13, and the mounting edges have the required strength and rigidity.
The rear connecting component 8 is provided with a first positioning hole 11, the mounting edge 7 is provided with a second positioning hole 12, the first positioning hole 11 corresponds to the second positioning hole 12 in position, the connecting structure between the dissimilar material components further comprises a pin 16, and the pin 16 penetrates through the first positioning hole 11 and the second positioning hole 12 and is used for limiting circumferential rotation displacement of the rear connecting component 8.
The number of the positioning holes can be designed according to actual needs, and the number of the positioning holes can be generally designed to be 3-6. The pin 16 is inserted through the second positioning hole 12 on the mounting edge 7 and the first positioning hole 11 on the rear connecting member 8, and the gasket 18 is inserted into the pin 16. A second lock screw hole 17 is designed at the tail end of the pin 16, a first lock screw hole 19 is designed on the gasket 18, and after the pin 16 and the gasket are assembled in place, the lock screw 20 penetrates through the second lock screw hole 17 on the pin 16 and the first lock screw hole 19 on the gasket 18 and then is locked to prevent the pin 16 from falling off. In this way, the positioning of the mounting rim 7 and the rear connecting member 8 in the circumferential direction is achieved.
The rear connecting member 8 further comprises a cylinder body, the cylinder body is connected with the turning edge, and an included angle between the cylinder body and the turning edge is an acute angle.
The specific assembly process of this embodiment is illustrated as follows:
the included angle between the flanging of the rear connecting component 8 and the cylinder body is an acute angle, the outlet of the rear connecting component 2 is allowed to be smaller than the inlet, the mounting edge 7 is segmented into three sections, namely a first mounting edge 71, a second mounting edge 72 and a third mounting edge 73, and the mounting edge 7 can be assembled into the rear connecting component 2. During the assembly of the front connecting member 1 and the mounting edge 7, bolts 3 penetrate through the front connecting member 1, the mounting edge 7 and the pressure plate 13, namely, the first bolt hole 141, the second bolt hole 142, the third bolt hole 143, the fourth bolt hole 144, the fifth bolt hole 145 and the sixth bolt hole 146, at the positions adjacent to the segment mounting edge. The bolts 3 at other positions penetrate through the front connecting component 1 and the mounting edge 7 and are screwed down by the nuts 4, and the special material connection of the front connecting component 1 and the rear connecting component 8 is completed. In order to select the bolts 3 with the same specification in the assembling process, the mounting groove 21 is designed at the position adjacent to the mounting edge 7, and the thickness of the mounting is ensured to be unchanged after the pressing plate 13 is mounted. By the mode, the reliable connection of the dissimilar material component in the large-range temperature gradient working environment is realized.
The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features, the technical schemes and the technical schemes can be freely combined and used.
Claims (7)
1. A connecting structure between different material components is characterized by comprising:
a front connecting member (1);
the mounting edge (7) is made of the same material as the front connecting component (1), the mounting edge (7) is fixedly connected with the front connecting component (1) through a bolt (3), and a clamping groove is formed between the mounting edge (7) and the front connecting component (1);
the rear connecting component (8) and the front connecting component (1) are made of dissimilar materials, the rear connecting component (8) is provided with a flanging edge, and the flanging edge is in clamping fit with the clamping groove.
2. The connecting structure between dissimilar members according to claim 1, wherein the mounting edges (7) are plural and are uniformly spaced in a circumferential direction of the rear connecting member (8).
3. The connecting structure between the different material members according to claim 2, wherein mounting grooves are formed at both ends of each mounting edge (7), the mounting grooves of two adjacent mounting edges (7) are correspondingly connected to form a containing space, the connecting structure between the different material members further comprises a pressing plate (13), the pressing plate (13) is fixedly arranged in the containing space and is used for fixedly connecting the two adjacent mounting edges (7), and the mounting edges (7) form a whole ring structure along the circumferential direction of the rear connecting member (8).
4. The connecting structure between the different material members according to claim 1, wherein the rear connecting member (8) is provided with a first positioning hole (11), the mounting edge (7) is provided with a second positioning hole (12), the first positioning hole (11) corresponds to the second positioning hole (12), the connecting structure between the different material members further comprises a pin (16), and the pin (16) is inserted into the first positioning hole (11) and the second positioning hole (12) and used for limiting the circumferential rotation displacement of the rear connecting member (8).
5. The connecting structure between dissimilar members according to claim 4,
the connecting structure between the different material members further comprises a gasket (18), the gasket (18) is sleeved outside the pin (16), and the gasket (18) is provided with a first lock screw hole (19);
the tail end of the pin (16) is provided with a second lock wire hole (17), and the first lock wire hole (19) corresponds to the second lock wire hole (17) in position and is fixed through a lock wire (20).
6. The connecting structure between the dissimilar material members according to claim 1, wherein the rear connecting member (8) further comprises a barrel, the barrel is connected with the folded edge, and an included angle between the barrel and the folded edge is an acute angle.
7. The connecting structure between dissimilar members according to claim 1, wherein the front connecting member (1) and the mounting edge (7) are made of a metal material, and the rear connecting member (8) is made of a composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210519105.2A CN114857142B (en) | 2022-05-12 | 2022-05-12 | Connection structure between different material components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210519105.2A CN114857142B (en) | 2022-05-12 | 2022-05-12 | Connection structure between different material components |
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| CN114857142A true CN114857142A (en) | 2022-08-05 |
| CN114857142B CN114857142B (en) | 2023-05-05 |
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