Interconnecting shaft assembly and tilt rotor aircraft

Abstract

The utility model relates to the technical field of aircraft rotor wing driving devices, and provides an interconnecting shaft assembly and a tilt rotor aircraft, in the interconnecting shaft assembly, first adjusting parts used for adjusting the relative positions of the adjacent first shaft assemblies are arranged between the first shaft assemblies, and second adjusting parts used for adjusting the relative positions of the adjacent first shaft assemblies are arranged between the first shaft assemblies. The adapter seat is connected with the seat body through a bolt, and the position of the interconnection shaft assembly in the direction parallel to the radial cross section of the through hole of the seat body and parallel to the mounting surface of the interconnection shaft assembly is adjusted by changing the position of the bolt in the kidney-shaped hole formed in the supporting seat assembly; a second adjusting part used for adjusting the position of the supporting base assembly is arranged between the base body and the adapter base. According to the interconnection shaft assembly provided by the invention, the deformation of the mounting surface can be compensated by adjusting the position and the angle.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of aircraft rotor drive device especially relates to an interconnection shaft assembly and tilt rotor aircraft. BACKGROUND

[0002] For the power system of double engine, the two ends of the interconnection shaft assembly are connected with the reducers of the two engines respectively, so that the engine power can be transmitted to the other side in the case of failure of one engine, the output of the power system is ensured, and thus the aircraft can still fly and control safely.

[0003] Generally, the interconnection shaft assembly is composed of multiple shaft assemblies and is installed on the mounting surface of the base through the outer spherical deep groove ball bearing and the bearing seat. The shaft assemblies in the interconnection shaft assembly are connected through the diaphragm assembly, and the deformation of the mounting surface is compensated through the diaphragm and the outer spherical deep groove ball bearing.

[0004] In the transmission system of the tilt rotor aircraft, the two ends of the interconnection shaft assembly are connected with the reducers on the left and right sides respectively, and the reducers on the left and right sides are installed on the left and right wings. The left and right wings inevitably deform in the process of production and use, however, the compensation effect of the deformation of the wings through the diaphragm and the outer spherical deep groove ball bearing is limited. SUMMARY

[0005] In view of the above analysis, the embodiments of the utility model aim to provide an interconnection shaft assembly and a tilt rotor aircraft, and improve the ability of the interconnection shaft assembly to cope with the deformation of the wings.

[0006] The interconnection shaft assembly provided by the application comprises:

[0007] A plurality of first shaft assemblies are connected in the axial direction thereof, and a first adjusting component for adjusting the relative positions of adjacent first shaft assemblies is arranged between the first shaft assemblies;

[0008] A support seat assembly comprises a seat body and a bearing, the bearing is installed in the through hole of the seat body, and the end of the first shaft assembly is installed on the seat body through the bearing; the two sides of the seat body are provided with a waist-shaped hole, the length direction of the waist-shaped hole is parallel to the radial cross section of the through hole of the seat body and parallel to the mounting surface of the interconnection shaft assembly;

[0009] An adapter seat is connected with the seat body through bolts, the adapter seat is used for being connected on the mounting surface of the interconnection shaft assembly, and a second adjusting component for adjusting the position of the support seat assembly is arranged between the seat body and the adapter seat.

[0010] In an embodiment, the first shaft assembly comprises a first transmission shaft and a flange plate connected at the two ends of the first transmission shaft.

[0011] The first shaft assembly further comprises:

[0012] The spline joint is provided with a shaft shoulder, so that the spline joint is a stepped shaft, and splines are arranged on the outer circumferential surface of the spline joint at the end with a smaller outer diameter;

[0013] One of the flanges is connected to one end of the first transmission shaft through a plurality of rivets, and the spline joint is connected to the other end of the first transmission shaft through a plurality of rivets, the spline joint is connected to one of the flanges through the splines, and the spline joint is fixed on the first transmission shaft through an end circular nut;

[0014] The inner ring of the bearing of the support seat assembly is sleeved on the spline joint, and the shaft shoulder of the spline joint and the flange axially position and fix the inner ring of the bearing.

[0015] In an embodiment, the interconnection shaft assembly further comprises:

[0016] The intermediate shaft assembly comprises an intermediate transmission shaft and flanges connected to both ends of the intermediate transmission shaft;

[0017] The flanges at both ends of the intermediate shaft assembly are respectively connected to the flanges of the first shaft assembly, and the structure and number of the first shaft assembly are symmetrical relative to a first plane, and the first plane is the central plane of the intermediate transmission shaft perpendicular to the axis thereof.

[0018] In an embodiment, the first adjusting component comprises a diaphragm and an adjusting gasket;

[0019] The adjacent flanges are connected through the diaphragm, and the adjusting gasket for adjusting the relative position between the adjacent flanges is arranged between the diaphragm and the flanges.

[0020] In an embodiment, the flange of the first shaft assembly is an equilateral triangle, and a through hole is arranged at the top corner of the flange;

[0021] Six through holes are uniformly arranged on the diaphragm in the circumferential direction;

[0022] The included angle between the two flanges of the first shaft assembly adjacent to each other is 60 degrees.

[0023] In an embodiment, connecting portions are symmetrically arranged on both sides of the seat body, and the waist-shaped holes are arranged on the connecting portions;

[0024] The bottom surface of the connecting portion is higher than the lowest point of the seat body;

[0025] The adapter seat comprises a base and two bosses, bolt holes are arranged on the two bosses, and the bolts are screwed into the bolt holes on the adapter seat through the waist-shaped holes on the seat body.

[0026] In an embodiment, the second adjusting component comprises a support seat gasket.

[0027] The cross-sectional outer contour of the support seat gasket is consistent with the cross-sectional outer contour of the boss, and the hole positions on the support seat gasket are consistent with the hole positions of the bolt holes on the boss.

[0028] In an embodiment, an elastic gasket is arranged in the through hole of the seat body, a bearing bush is arranged in the elastic gasket, and the bearing is arranged in the bearing bush.

[0029] In an embodiment, the material of the elastic gasket is rubber.

[0030] The seat body, the elastic gasket, and the bearing bush are integrally vulcanized and formed.

[0031] The tilt-rotor aircraft provided in the application comprises:

[0032] The above-mentioned interconnected shaft assembly;

[0033] Left and right reducers, and output shafts of the left and right reducers, respectively connected to two ends of the interconnected shaft assembly;

[0034] Two engines, and input shafts of the left and right reducers, respectively connected to one of the engines;

[0035] The interconnected shaft assembly is connected to the wing of the tilt-rotor aircraft through the adapter seat.

[0036] Compared with the prior art, the application at least has the following beneficial effects:

[0037] In the interconnected shaft assembly provided in the application, the first adjusting component is arranged between the first shaft assemblies to adjust the relative positions of the adjacent first shaft assemblies, so that the position of the interconnected shaft assembly in the direction parallel to the axis of the interconnected shaft assembly can be adjusted; the adapter seat is connected to the seat body through the bolts, and the position of the interconnected shaft assembly in the direction parallel to the radial cross section of the through hole of the seat body and parallel to the mounting surface of the interconnected shaft assembly can be adjusted by changing the position of the bolt in the waist-shaped hole arranged on the support seat assembly; the second adjusting component is arranged between the seat body and the adapter seat to adjust the position of the support seat assembly, so that the position of the interconnected shaft assembly in the direction parallel to the radial cross section of the through hole of the seat body and perpendicular to the mounting surface of the interconnected shaft assembly can be adjusted. Therefore, the position of the interconnected shaft assembly in three directions can be adjusted.

[0038] And, each of the first shaft assembly is provided with a support seat assembly, by changing the position of each of the support seat assembly, the deflection and tilt angle of the interconnected shaft assembly can be adjusted.

[0039] In summary, the interconnected shaft assembly provided by the present application can compensate for the deformation of the installation surface through position and angle adjustment. When used in the transmission system of a tilt rotor aircraft, the interconnected shaft assembly can better cope with wing deformation, thereby ensuring the stable operation of the transmission system of the tilt rotor aircraft.

[0040] And changing the position of the bolt, increasing or decreasing the first adjustment component and the second adjustment component, so that the adjustment process of the interconnected shaft assembly is simple and easy to operate, and the allowed adjustment range is also larger.

[0041] In the present application, the above technical solutions can be combined with each other to realize more preferred combination solutions. Other features and advantages of the present application will be described in the subsequent specification, and some advantages can become apparent from the specification, or can be understood by implementing the present application. The purpose and other advantages of the present application can be realized and obtained through the content specifically pointed out in the specification and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0042] The accompanying drawings are included to provide a further understanding of the embodiments, and are incorporated in and constitute a part of this application. The same reference numerals refer to the same components throughout the drawings.

[0043] Figure 1 is a structural schematic view of the interconnected shaft assembly in the present embodiment 1;

[0044] Figure 2 is an assembly schematic view of the first shaft assembly and the support seat assembly in the present embodiment 1;

[0045] Figure 3 is a structural schematic view of the first shaft assembly in the present embodiment 1;

[0046] Figure 4 is a structural schematic view of the intermediate shaft assembly in the present embodiment 1;

[0047] Figure 5 is a schematic view of part of the structure for adjusting the X-direction position in the present embodiment 1;

[0048] Figure 6 is a schematic view of part of the structure for adjusting the Y-direction position in the present embodiment 1;

[0049] Figure 7 is a schematic view of part of the structure for adjusting the Z-direction position in the present embodiment 1;

[0050] Figure 8 This is a schematic diagram of the diaphragm structure in Example 1.

[0051] Figure 9 This is a schematic diagram of the support assembly in Embodiment 1.

[0052] Figure 10 This is a cross-sectional structural diagram of the support assembly in Embodiment 1.

[0053] Figure 11 This is a partial cross-sectional view of the first shaft assembly and the support assembly after assembly in Embodiment 1. Detailed Implementation

[0054] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention. Example

[0055] This embodiment provides an interconnected shaft assembly. In a dual-engine power system, the two ends of the interconnected shaft assembly are respectively connected to the reducers of the two engines. This ensures that if one engine fails, the engine power can be transferred to the other side, guaranteeing the output of the power system and enabling the aircraft to still fly and be controlled safely.

[0056] Reference Figures 1 to 11 The interconnecting axis assembly provided in this embodiment includes:

[0057] A plurality of first shaft assemblies 1 are connected to each other in their axial direction, and a first adjustment component is provided between the first shaft assemblies 1 for adjusting the relative position between adjacent first shaft assemblies 1.

[0058] The support assembly 3 includes a base 10 and a bearing 16. The bearing 16 is installed in a through hole of the base 10, and the end of the first shaft assembly 1 is mounted on the base 10 via the bearing 16. The base 10 has oblong holes 11 on both sides. The length direction of the oblong holes 11 is parallel to the radial cross-section of the through hole of the base 10 and parallel to the mounting surface of the interconnecting shaft assembly. The length direction of the oblong holes 11 is referenced to... Figure 5 The X direction in;

[0059] Adapter 12, see reference Figure 5 The adapter 12 is connected to the mounting surface of the interconnecting shaft assembly by bolts 100. A second adjustment component for adjusting the position of the support assembly 3 is provided between the base 10 and the adapter 12.

[0060] In the above-mentioned embodiments of the present application, the first adjustment component is arranged between the first shaft assemblies 1 of the interconnected shaft assembly to adjust the relative position between the adjacent first shaft assemblies 1, so that the position of the interconnected shaft assembly in the direction parallel to the axis of the interconnected shaft assembly (Y direction in Figure 6 , the adapter 12 is connected to the seat body 10 by bolts, and the position of the interconnected shaft assembly in the direction parallel to the radial cross section of the through hole of the seat body 10 and parallel to the mounting surface of the interconnected shaft assembly (X direction in Figure 5 , the second adjustment component is arranged between the seat body 10 and the adapter 12 to adjust the position of the support seat assembly 3, so that the position of the interconnected shaft assembly in the direction parallel to the radial cross section of the through hole of the seat body 10 and perpendicular to the mounting surface of the interconnected shaft assembly (Z direction in Figure 7 . Thus, the position of the interconnected shaft assembly in three directions is adjusted.

[0061] In addition, the end of each first shaft assembly 1 is provided with a support seat assembly 3, and the deflection and inclination angle of the interconnected shaft assembly can be adjusted by changing the position of each support seat assembly 3.

[0062] In summary, the interconnected shaft assembly provided in the present embodiment can compensate for the deformation of the mounting surface through position and angle adjustment. When used in the transmission system of a tilt rotor aircraft, the interconnected shaft assembly can better cope with the deformation of the wing, thereby ensuring the stable operation of the transmission system of the tilt rotor aircraft.

[0063] In addition, in the present embodiment, the method of changing the position of the bolt, increasing or decreasing the first adjustment component and the second adjustment component is simple and easy to implement, and the allowed adjustment range is also large.

[0064] In the present embodiment, referring to Figure 1 , the interconnected shaft assembly further comprises a middle shaft assembly 2;

[0065] The middle shaft assembly 2 comprises a middle transmission shaft 9 and flanges 6 connected to both ends of the middle transmission shaft;

[0066] The flanges 6 at both ends of the middle shaft assembly 2 are respectively connected to the flanges 6 of a first shaft assembly 1; and the structure and number of the first shaft assemblies 1 are symmetrical relative to a first plane, and the first plane is the central plane of the middle transmission shaft 9 perpendicular to the axis of the middle transmission shaft 9.

[0067] Referring to Figure 4 , both ends of the middle transmission shaft 9 of the middle shaft assembly 2 are connected to the flanges 6 by a plurality of rivets 7.

[0068] Reference Figure 2 and Figure 3 One end of the first drive shaft 5 in the first shaft assembly 1 ( Figure 3 The right end of the first drive shaft 5 in the first shaft assembly 1 is connected to the flange 6 by multiple rivets 7. The other end of the first drive shaft 5 in the first shaft assembly 1 ( Figure 3 The right end of the first drive shaft 5 is connected to a spline joint 4 via multiple rivets 7. The spline joint 4 is also connected to one of the flanges 6. Figure 11 The spline joint 4 has a shoulder, making it a stepped shaft. A spline is formed on the outer circumferential surface of the spline joint 4 at the end with the smaller outer diameter. The spline joint 4 is fixed to the first drive shaft 5 by an end nut 20. The inner ring of the bearing 16 of the support assembly 3 is fitted onto the spline joint 4. The shoulder on the spline joint 4 and the flange 6 axially position and fix the inner ring of the bearing 16 at this end. This structure enables spline transmission between the first drive shaft 5 and the flange 6. O-rings 21 can be used to seal the spline with grease.

[0069] Combination Figure 1 The right end of the intermediate shaft assembly 2 is connected to the right end of the first shaft assembly 1, which is connected to the support assembly 3. Figure 2 The left end of the first shaft assembly 1 shown), the right end of the first section of the first shaft assembly 1, is the end that is not connected to the support assembly 3. Figure 2 The right end of the first shaft assembly 1 shown in the diagram is then connected to the right end of the second section of the first shaft assembly 1, which is connected to the support assembly 3. Figure 2 (The left end of the first axis assembly 1 shown), and so on, connecting more first axis assemblies 1. The structure of the interconnecting axis assemblies is arranged in a mirror-symmetrical manner with respect to the first plane. The length and number of the first axis assemblies 1, and the length of the intermediate axis assemblies 2, are determined based on the length of the interconnecting axis assemblies.

[0070] In order to make the left and right structures symmetrical about the center plane perpendicular to the axis in the interconnected shaft assembly, the first shaft assembly 1 is arranged symmetrically about the center plane. In this embodiment, by setting the intermediate shaft assembly 2, the positions of the two support base assemblies of the two first shaft assemblies are avoided from interfering with each other, or the support is not sufficient due to the large interval between adjacent support base assemblies in the interconnected shaft assembly.

[0071] The dynamic balance requirements of the first shaft assembly 1 and the intermediate shaft assembly 2 are ensured by bonding balance blocks 8 on the first drive shaft 5 and the intermediate drive shaft 9.

[0072] In this embodiment, the first adjustment component includes a diaphragm 15 and an adjustment shim 200;

[0073] The adjacent flange plates 6 are connected by a diaphragm 15.

[0074] An adjusting gasket 200 is arranged between the diaphragm 15 and the flange plate 6 for adjusting the relative position between the adjacent flange plates 6.

[0075] With reference to Figure 8 The diaphragm 15 connects the adjacent flange plates 6 by bolts 100 and nuts 300. The diaphragm 15 mainly functions to transmit the engine output power, compensate the angular and axial displacement of the first shaft assembly 1, support seat assembly 3 and intermediate shaft assembly 2 caused by the misalignment of the left and right reducers, and bear the alternating load generated thereby.

[0076] In this embodiment, the flange plate 6 of the first shaft assembly 1 is an equilateral triangle, and a through hole is arranged at the top corner of the flange plate 6.

[0077] Six through holes are uniformly distributed in the circumferential direction of the diaphragm 15.

[0078] The included angle between the two adjacent flange plates 6 of the first shaft assembly 1 is 60 degrees.

[0079] In this embodiment, the mass distribution is more uniform at the connection structure between the first shaft assembly 1 and the intermediate shaft assembly 2, which is beneficial to the balance of the interconnected shaft assembly.

[0080] In this embodiment, for the support seat assembly 3 structure, the connecting portions are symmetrically arranged on both sides of the seat body 10, and the waist-shaped holes 11 are arranged on the connecting portions; the bottom surface of the connecting portion is higher than the lowest point of the seat body 10.

[0081] The adapter seat 12 includes a base and a boss 14, and bolt holes are arranged on the two bosses 14. After the bolts pass through the waist-shaped holes 11 on the seat body 10, they are screwed into the bolt holes on the adapter seat 12.

[0082] In this embodiment, by arranging the bottom surface of the connecting portion to be higher than the lowest point of the seat body 10 and arranging the boss 14 on the adapter seat 12, the adjusting space of the seat body 10 is increased, thereby increasing the adjustable range of the angular displacement and displacement of the interconnected shaft assembly.

[0083] In this embodiment, the second adjusting component includes a support seat gasket.

[0084] The cross-sectional outer profile of the support seat gasket 13 is consistent with the cross-sectional outer profile of the boss 14, and the hole positions on the support seat gasket 13 are consistent with the hole positions of the bolt holes on the boss 14. The plurality of waist-shaped holes 13 facilitate fixing the relative positions of the support seat assembly 3 and the adapter seat 12. When the waist-shaped holes 11 are provided in plurality and the bolt holes on the boss 14 are provided in plurality, compared with providing a gasket for each bolt hole on the boss 14, providing one support seat gasket 13 can simplify the adjustment process and reduce the number of parts.

[0085] The support seat gasket 13 can be provided in plurality to change the distance between the seat body 10 and the adapter seat 12, thereby changing the height of the support seat assembly 3, and further adjusting the angular deviation and displacement of the interconnection shaft assembly.

[0086] In this embodiment, referring to Figure 9 and Figure 10 , an elastic gasket 18 is arranged in the through hole of the seat body 10, a bearing bush 19 is arranged in the elastic gasket 18, and the bearing 16 is arranged in the bearing bush 19, and then the two sides are positioned by the retainer 17; by arranging the elastic gasket 18, the vibration and impact during work can be effectively alleviated, the impact on the bearing 16 is reduced, and the stability, smoothness and safety of the interconnection shaft assembly during high-speed operation are ensured.

[0087] In this embodiment, the bearing 16 is specifically an outer spherical deep groove ball bearing. The outer spherical deep groove ball bearing allows rotation and tilting, can compensate for the displacement caused by the deformation of the installation surface of the interconnection shaft assembly, thermal expansion and contraction, load changes and the like, and ensures the stable operation of the interconnection shaft assembly. In this implementation, the bearing 16 is assembled into the bearing bush 19 from one side of the bearing bush 9. On this side, two process grooves 22 are symmetrically formed on the inner wall of the bearing bush 19.

[0088] Retainer grooves 23 are formed on the inner wall of the bearing bush 19 and at both ends of the bearing 16, and the retainer grooves 23 are used to install the retainer 17.

[0089] In this embodiment, an annular groove is arranged on each of the two side end faces of the elastic gasket 18, which is beneficial to reduce the weight of the elastic gasket 18 and further reduce the weight of the interconnection shaft assembly. Moreover, by arranging the annular groove, the manufacturing of the elastic gasket is facilitated.

[0090] In this embodiment, the material of the elastic gasket 18 is rubber;

[0091] The seat body 10, the elastic gasket 18 and the bearing bush 19 are integrally vulcanized and formed, and the connection between the seat body 10, the elastic gasket 18 and the bearing bush 19 is more reliable in this embodiment, and the damping effect of the support seat assembly is better. Compared with the molded rubber gasket which needs to open a mold and has high cost, the manufacturing cost of the seat body 10, the elastic gasket 18 and the bearing bush 19 integrally vulcanized and formed in the embodiment is lower. Embodiment

[0092] The embodiment provides a tilt-rotor aircraft, which comprises the interconnection shaft assembly provided in the embodiment 1.

[0093] A left speed reducer and a right speed reducer, the two ends of the interconnection shaft assembly are connected with the output end of the left speed reducer and the output shaft of the right speed reducer respectively.

[0094] Two engines, the input ends of the left speed reducer and the right speed reducer are connected with one of the engines respectively.

[0095] The adapter seat 12 is connected with the mounting surface of the wing of the tilt-rotor aircraft.

[0096] The interconnection shaft assembly in the tilt-rotor aircraft provided in the embodiment can compensate for the deviation caused by the misalignment of the speed reducers at the left and right ends of the interconnection shaft assembly and the deformation of the wing, so that the power performance of the tilt-rotor aircraft is improved.

[0097] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of the changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A shaft assembly, characterized by, The application relates to a support seat assembly for a plurality of first shaft assemblies. The support seat assembly comprises a seat body and a bearing installed in a through hole of the seat body, and the end of the first shaft assembly is installed on the seat body through the bearing; the seat body is provided with waist-shaped holes on two sides, the length direction of the waist-shaped holes is parallel to the radial cross section of the through hole of the seat body and parallel to the installation surface of the interconnected shaft assembly; an adapter seat is connected to the seat body through bolts, the adapter seat is used for being connected to the installation surface of the interconnected shaft assembly, and the seat body and the adapter seat are provided with a second adjusting component for adjusting the position of the support seat assembly. The first shaft assembly comprises a first transmission shaft and flanges connected to the two ends of the first transmission shaft. The first shaft assembly further comprises:

2. The interconnecting shaft assembly of claim 1, wherein, A spline joint is provided with an axle shoulder so that the spline joint is a stepped shaft, and a spline is arranged on the outer circumferential surface of the spline joint at the end with a smaller outer diameter; One end of the first transmission shaft is connected with one flange through a plurality of rivets; the other end of the first transmission shaft is connected with a spline joint through a plurality of rivets, the spline joint is connected with one flange through the spline, and the spline joint is fixed on the first transmission shaft through an end circular nut; The inner ring of the bearing of the support seat assembly is sleeved on the spline joint, and the axle shoulder on the spline joint and the flange axially position and fix the inner ring of the bearing. Further comprising: A middle shaft assembly comprises a middle transmission shaft and flanges connected to the two ends of the middle transmission shaft; 3. The interconnected shaft assembly of claim 1, wherein, The flanges at the two ends of the middle shaft assembly are respectively connected with the flanges of one first shaft assembly; and the structure and number of the first shaft assembly are symmetrical relative to a first plane, and the first plane is the central plane of the middle transmission shaft perpendicular to the axis of the middle transmission shaft. The first adjusting component comprises a diaphragm and an adjusting gasket; The adjacent flanges are connected through the diaphragm, and the adjusting gasket for adjusting the relative position between the adjacent flanges is arranged between the diaphragm and the flanges.

4. The interconnected shaft assembly of claim 3, wherein, The flange of the first shaft assembly is an equilateral triangle, and a through hole is arranged at the top corner of the flange; Six through holes are uniformly distributed on the diaphragm in the circumferential direction; 5. The interconnecting shaft assembly of claim 4, wherein, The included angle between the two flanges of the adjacent first shaft assembly is 60 degrees. The connecting portions are symmetrically arranged on the two sides of the seat body, and the waist-shaped holes are arranged on the connecting portions; The bottom surface of the connecting portion is higher than the lowest point of the seat body; 6. The interconnected shaft assembly of claim 1, wherein, The adapter seat comprises a base and bosses, bolt holes are arranged on the two bosses, and the bolts are screwed into the bolt holes on the adapter seat after penetrating through the waist-shaped holes on the seat body. The second adjusting component comprises a support seat gasket; The cross-sectional contour of the support seat gasket is consistent with the cross-sectional contour of the boss, and the hole positions on the support seat gasket are consistent with the hole positions of the bolt holes on the boss.

7. The interconnecting shaft assembly of claim 6, wherein, An elastic gasket is arranged in the through hole of the seat body, a bearing bush is arranged in the elastic gasket, and the bearing is arranged in the bearing bush. The material of the elastic gasket is rubber.

8. The interconnected shaft assembly of claim 1, wherein, ​ 9. The interconnecting shaft assembly of claim 8, wherein, ​ The seat body, the elastic gasket and the bearing bush are integrally vulcanized and formed.

10. A tiltrotor aircraft characterized by, Comprise: The interconnection shaft assembly of any one of claims 1-9; A left speed reducer and a right speed reducer, output shafts of the left speed reducer and the right speed reducer are connected to two ends of the interconnection shaft assembly respectively; Two engines, input shafts of the left speed reducer and the right speed reducer are connected to the two engines respectively; The interconnection shaft assembly is connected to the wing of the tilt-rotor aircraft through the adapter seat.

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