Testing device for nacelle of tilt-rotor aircraft

Abstract

The utility model provides a test device for a tilting rotor aircraft nacelle, and relates to the field of rotor aircrafts. The device comprises a fixing device and a test assembly, the test assembly comprises a connecting base, a guiding piece, a limiting piece and a detection device, the connecting base is provided with a nacelle connecting part, the two sides of the guiding piece are a first mounting end and a second mounting end respectively, and the first mounting end is in vertical sliding connection with the connecting base through a first connecting part; the second mounting end is slidably connected with the limiting piece through a second connecting part in the horizontal direction, and the detection device is arranged on the limiting piece; in the detection state, after the nacelle is fixedly connected to the nacelle connecting part, when the nacelle is located at the horizontal position, the inclined position and the vertical position respectively, the tilting shaft of the nacelle drives the connecting base to slide correspondingly, and the detection device is used for detecting the acting force at different positions. The device not only can test and verify the performance and technical parameters of the nacelle assembly, but also can verify the action in the nacelle tilting conversion process in real time.

Description

Technical Field

[0001] The utility model relates to the field of rotorcraft, in particular to a test device for a nacelle of a tiltrotor aircraft. Background Art

[0002] In a tilt-rotor aircraft, the nacelle is an important component. The reliability of the nacelle directly determines and affects the safety and reliability of the entire aircraft. Therefore, during the research and development of the tilt-rotor aircraft, the performance and technical parameters of the nacelle components need to be tested and verified. In addition, during the tilting action of the nacelle of the tilt-rotor aircraft, the force of the propeller lift on the wing is a process of change and conversion. The existing test device cannot verify the action of the nacelle during the tilt conversion process in real time. Therefore, there is an urgent need for a test device for the nacelle of a tilt-rotor aircraft. On the one hand, the performance and technical parameters of the nacelle components need to be tested and verified, and on the other hand, the action of the nacelle during the tilt conversion process needs to be verified in real time. Utility Model Content

[0003] The purpose of the utility model is to provide a test device for a nacelle of a tilt-rotor aircraft to improve the above-mentioned problem. In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows:

[0004] A test device for a nacelle of a tiltrotor aircraft, the device comprising:

[0005] A fixing device and a test assembly, wherein the test assembly is fixedly connected to the fixing device, the test assembly comprises a connecting seat, a guide, a limiter and a detection device, the connecting seat is arranged in the limiter, and the connecting seat is provided with a nacelle connecting portion, the two sides of the guide are respectively a first mounting end and a second mounting end, the first mounting end is vertically slidably connected to the connecting seat through a first connecting portion, the second mounting end is horizontally slidably connected to the limiter through a second connecting portion, and the detection device is arranged on the limiter;

[0006] Detection status: After the nacelle is fixedly connected to the nacelle connecting part, when the nacelle is in the horizontal, inclined and vertical positions respectively, the tilt axis of the nacelle drives the connecting seat to slide accordingly, and the detection device is used to detect the magnitude of the force at different positions.

[0007] Preferably, the detection device comprises an X-direction detection device and a Z-direction detection device, the side wall of the limiter is a reference plane, the reference plane is perpendicular to the horizontal direction, the top of the limiter is fixedly connected with an upper cover plate, the bottom of the limiter is fixedly connected with a lower cover plate, the X-direction detection device is fixedly connected to the reference plane, and the Z-direction detection device is fixedly connected to the upper cover plate;

[0008] Detection status: when the nacelle is in a horizontal position, the tilt axis of the nacelle drives the connecting seat to slide horizontally, and the X-direction detection device is used to detect the horizontal force; when the nacelle is in a vertical position, the tilt axis of the nacelle drives the connecting seat to slide vertically, and the Z-direction detection device is used to detect the vertical force; when the nacelle is in an inclined position, the X-direction detection device is used to detect the horizontal component of the force, and the Z-direction detection device is used to detect the vertical component of the force.

[0009] Preferably, the X-direction detection device includes an X-direction sensor and an X-direction guide column, the X-direction sensor is fixedly connected to the reference plane, and a first mounting hole is provided in the reference plane, the X-direction guide column is slidably connected to the first mounting hole, and when the tilt axis of the nacelle drives the connecting seat to slide horizontally through the second connecting part, the X-direction guide column is simultaneously pushed to slide until pressure is applied to the X-direction sensor.

[0010] Preferably, the Z-direction detection device includes a Z-direction sensor and a Z-direction guide column, the Z-direction sensor is fixedly connected to the upper cover plate, a second mounting hole is provided in the upper cover plate, the Z-direction guide column is slidably connected to the second mounting hole, and when the tilt axis of the nacelle drives the connecting seat to slide vertically through the first connecting part, the Z-direction guide column is simultaneously pushed to slide until pressure is applied to the Z-direction sensor.

[0011] Preferably, the first connecting portion includes a first slide groove and a first connecting slider, the first slide groove is arranged on the connecting seat, and the first slide groove is a through vertical groove, the first connecting slider is arranged on the first mounting end, and the first connecting slider is slidably connected in the first slide groove.

[0012] Preferably, the second connecting portion includes a second slide groove and a second connecting slider, the second slide groove is arranged on the limiting member, and the second slide groove is used to limit the second connecting slider to slide only in the horizontal direction, the second connecting slider is arranged on the second mounting end, and the second connecting slider is slidably connected in the second slide groove.

[0013] Preferably, the nacelle connecting portion is a mounting boss, a tilt axis mounting groove is arranged in the mounting boss, and a plurality of through assembly holes are arranged on the groove wall of the tilt axis mounting groove.

[0014] Preferably, the transverse cross-section of the tilt axis mounting groove is a regular polygon.

[0015] Preferably, the guide member comprises a first guide block and a second guide block, and the first guide block and the second guide block are respectively arranged on both sides of the connecting seat;

[0016] The limiting member is provided with a mounting groove, the first guide block and the second guide block are both provided in the mounting groove, and clamping platforms are provided on both sides of the mounting groove, and the first guide block and the second guide block are respectively against the clamping platforms.

[0017] Preferably, the fixing device comprises a mounting base plate and a mounting bracket, the mounting bracket is fixedly connected to the top of the mounting base plate, and the mounting bracket is provided with a fixing portion, and the test assembly is fixedly connected to the fixing portion.

[0018] The beneficial effects of the utility model are:

[0019] In the present invention, an equivalent concept is adopted, and the wing ribs at the nacelle connection are equivalent to the connecting seat. After the nacelle is fixedly connected to the nacelle connecting part, when the nacelle is in the horizontal, inclined and vertical positions respectively, the tilt axis of the nacelle drives the connecting seat to slide accordingly, and the detection device is used to detect the magnitude of the force at different positions to test and verify the performance and technical parameters of the nacelle assembly; in addition, when the nacelle is tilted and converted to different positions, the test device can verify the actions of the nacelle during the tilt conversion process in real time.

[0020] Other features and advantages of the present invention will be described in the following description, and some of them will become obvious from the description or be understood by implementing the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall assembly structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the structure in which the position-limiting member in the embodiment of the utility model is fixed to the fixing device;

[0025] Figure 4 This is a schematic structural diagram of the first connecting portion and the second connecting portion in an embodiment of the utility model;

[0026] Figure 5This is a schematic diagram of the connection structure between the connection seat and the first guide block and the second guide block in the embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the first mounting end and the second mounting end in an embodiment of the utility model;

[0028] Figure 7 It is a schematic diagram of the connection structure between the nacelle and the test device when the nacelle is in a vertical position;

[0029] Figure 8 It is a schematic diagram of the connection structure between the nacelle and the test device when the nacelle is in a horizontal position;

[0030] Fig. 9 It is a schematic diagram of the connection structure between the nacelle and the test device when the nacelle is in an inclined position;

[0031] Markings in the figure:

[0032] 11. Mounting base plate; 12. Mounting bracket; 21. Connecting seat; 22. Guide member; 23. Limiting member; 210. Nacelle connecting part; 211. Assembly hole; 221. First mounting end; 222. Second mounting end; 230. Mounting groove; 231. Upper cover plate; 232. Lower cover plate; 233. Card table; 241. X-axis sensor; 242. X-axis guide column; 251. Z-axis sensor; 252. Z-axis guide column; 100. First connecting part; 200. Second connecting part; 3. Nacelle. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0034] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] like Figures 1 to 6 As shown, a test device for a nacelle of a tilt-rotor aircraft comprises:

[0036] A fixing device and a test assembly, wherein the test assembly is fixedly connected to the fixing device, and the test assembly comprises a connecting seat 21, a guide member 22, a stopper 23 and a detection device, wherein the connecting seat 21 is arranged in the stopper 23, and the connecting seat 21 is provided with a nacelle connecting portion 210, and the two sides of the guide member 22 are respectively a first mounting end 221 and a second mounting end 222, wherein the first mounting end 221 is vertically slidably connected to the connecting seat 21 through a first connecting portion 100, and the second mounting end 222 is horizontally slidably connected to the stopper 23 through a second connecting portion 200, and the detection device is arranged on the stopper 23;

[0037] Detection status: After the nacelle 3 is fixedly connected to the nacelle connection part 210, when the nacelle 3 is in the horizontal, inclined and vertical positions respectively, the tilt axis of the nacelle 3 drives the connection seat 21 to slide accordingly, and the detection device is used to detect the magnitude of the force at different positions.

[0038] In this test device, the nacelle 3 can be in a preset fixed position or in a tilting conversion process.

[0039] like Figure 2 As shown, in the present utility model, in order to clarify the specific structure of the detection device, the detection device includes an X-direction detection device and a Z-direction detection device, the side wall of the limiter 23 is a reference plane, the reference plane is perpendicular to the horizontal direction, the top of the limiter 23 is fixedly connected with an upper cover plate 231, the bottom of the limiter 23 is fixedly connected with a lower cover plate 232, the X-direction detection device is fixedly connected to the reference plane, and the Z-direction detection device is fixedly connected to the upper cover plate 231;

[0040] Detection status:

[0041] like Figure 7 As shown, when the nacelle 3 is in a vertical position, the tilting axis of the nacelle 3 drives the connecting seat 21 to slide vertically, and the Z-direction detection device is used to detect the vertical force;

[0042] like Figure 8As shown, when the nacelle 3 is in a horizontal position, the tilting axis of the nacelle 3 drives the connecting seat 21 to slide horizontally, and the X-direction detection device is used to detect the horizontal force;

[0043] like Fig. 9 As shown, when the nacelle 3 is in an inclined position, the X-direction detection device is used to detect the horizontal component of the force, and the Z-direction detection device is used to detect the vertical component of the force.

[0044] The nacelle 3 is in a tilted position, which can also be understood as the nacelle 3 being in a certain state position during the tilting process.

[0045] After the detection device collects the corresponding detection data, it analyzes the detection data and then tests and verifies the performance and technical parameters of the nacelle assembly to reflect the magnitude of the force exerted by the propeller's lift on the wing.

[0046] like Figure 2 As shown, preferably, the X-direction detection device includes an X-direction sensor 241 and an X-direction guide column 242, the X-direction sensor 241 is fixedly connected to the reference plane, and a first mounting hole is provided in the reference plane, the X-direction guide column 242 is slidably connected to the first mounting hole, and when the tilt axis of the nacelle 3 drives the connecting seat 21 to slide horizontally through the second connecting part 200, the X-direction guide column 242 is simultaneously pushed to slide until pressure is applied to the X-direction sensor 241.

[0047] Preferably, the Z-direction detection device includes a Z-direction sensor 251 and a Z-direction guide column 252, the Z-direction sensor 251 is fixedly connected to the upper cover plate 231, a second mounting hole is provided in the upper cover plate 231, the Z-direction guide column 252 is slidably connected to the second mounting hole, and when the tilt axis of the nacelle 3 drives the connecting seat 21 to slide vertically through the first connecting part 100, the Z-direction guide column 252 is simultaneously pushed to slide until pressure is applied to the Z-direction sensor 251.

[0048] like Figures 4 to 6 As shown, in this test device, in order to clarify the specific structure of the first connecting part 100, the first connecting part 100 includes a first slide groove and a first connecting slider, the first slide groove is arranged on the connecting seat 21, and the first slide groove is a through vertical groove, the first connecting slider is arranged on the first mounting end 221, and the first connecting slider is slidably connected in the first slide groove.

[0049] In the above structure, the first sliding groove is a through vertical groove to realize the freedom of the connecting seat 21 in the Z direction.

[0050] To clarify the specific structure of the second connecting part 200, the second connecting part 200 includes a second slide groove and a second connecting slider, the second slide groove is arranged on the limiting member 23, and the second slide groove is used to limit the second connecting slider to slide only in the horizontal direction, the second connecting slider is arranged on the second mounting end 222, and the second connecting slider is slidably connected in the second slide groove.

[0051] When the second sliding groove is used to limit the second connecting slider to slide only in the horizontal direction, the connecting seat 21 realizes the degree of freedom in the X direction.

[0052] like Figure 5 As shown, in order to facilitate the connection between the test device and the nacelle 3, the nacelle connecting portion 210 is a mounting boss, a tilt axis mounting groove is provided in the mounting boss, and a plurality of through assembly holes 211 are provided on the groove wall of the tilt axis mounting groove.

[0053] Preferably, the transverse cross-section of the tilt axis mounting groove is a regular polygon to ensure the installation stability of the nacelle 3 and reduce the tilt error.

[0054] In the present utility model, in order to clarify the specific structure of the guide member 22, the guide member 22 includes a first guide block and a second guide block, and the first guide block and the second guide block are respectively arranged on both sides of the connecting seat 21;

[0055] like Figure 3 As shown, a mounting groove 230 is provided in the limiting member 23, the first guide block and the second guide block are both provided in the mounting groove 230, and a clamping platform 233 is provided on both sides of the mounting groove 230, and the first guide block and the second guide block are respectively abutted against the clamping platform 233.

[0056] To clarify the structure of the fixing device, the fixing device includes a mounting base plate 11 and a mounting bracket 12, the mounting bracket 12 is fixedly connected to the top of the mounting base plate 11, and the mounting bracket 12 is provided with a fixing portion, and the test assembly is fixedly connected to the fixing portion.

[0057] Preferably, the mounting base plate 11 and the mounting bracket 12 are welded together as a whole, and the test assembly is fixedly connected to the fixing portion by bolts.

[0058] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0059] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention.

Claims

1. A test device for a tiltrotor aircraft nacelle, characterized in that: include: A fixing device and a test assembly, wherein the test assembly is fixedly connected to the fixing device, the test assembly comprises a connecting seat (21), a guide member (22), a limiting member (23) and a detection device, the connecting seat (21) is arranged in the limiting member (23), and the connecting seat (21) is provided with a nacelle connecting portion (210), two sides of the guiding member (22) are respectively a first mounting end (221) and a second mounting end (222), the first mounting end (221) is vertically slidably connected to the connecting seat (21) via a first connecting portion (100), the second mounting end (222) is horizontally slidably connected to the limiting member (23) via a second connecting portion (200), and the detection device is arranged on the limiting member (23); Detection state: After the nacelle (3) is fixedly connected to the nacelle connection part (210), when the nacelle (3) is in a horizontal, inclined, and vertical position respectively, the tilting axis of the nacelle (3) drives the connection seat (21) to slide accordingly, and the detection device is used to detect the magnitude of the force at different positions.

2. A test device for a tiltrotor aircraft nacelle according to claim 1, characterized in that: The detection device comprises an X-direction detection device and a Z-direction detection device, the side wall of the limiter (23) is a reference plane, the reference plane is perpendicular to the horizontal direction, the top of the limiter (23) is fixedly connected to an upper cover plate (231), the bottom of the limiter (23) is fixedly connected to a lower cover plate (232), the X-direction detection device is fixedly connected to the reference plane, and the Z-direction detection device is fixedly connected to the upper cover plate (231); Detection state: when the nacelle (3) is in a horizontal position, the tilt axis of the nacelle (3) drives the connecting seat (21) to slide horizontally, and the X-direction detection device is used to detect the horizontal force; when the nacelle (3) is in a vertical position, the tilt axis of the nacelle (3) drives the connecting seat (21) to slide vertically, and the Z-direction detection device is used to detect the vertical force; when the nacelle (3) is in an inclined position, the X-direction detection device is used to detect the horizontal component of the force, and the Z-direction detection device is used to detect the vertical component of the force.

3. A test device for a tilt-rotor aircraft nacelle according to claim 2, characterized in that: The X-direction detection device comprises an X-direction sensor (241) and an X-direction guide column (242), wherein the X-direction sensor (241) is fixedly connected to the reference plane, and a first mounting hole is provided in the reference plane, and the X-direction guide column (242) is slidably connected to the first mounting hole, and when the tilting axis of the nacelle (3) drives the connecting seat (21) to slide horizontally through the second connecting portion (200), the X-direction guide column (242) is simultaneously pushed to slide until pressure is applied to the X-direction sensor (241).

4. A test device for a tilt-rotor aircraft nacelle according to claim 2, characterized in that: The Z-direction detection device comprises a Z-direction sensor (251) and a Z-direction guide column (252), wherein the Z-direction sensor (251) is fixedly connected to the upper cover plate (231), a second mounting hole is provided in the upper cover plate (231), and the Z-direction guide column (252) is slidably connected to the second mounting hole. When the tilt axis of the nacelle (3) drives the connecting seat (21) to slide vertically through the first connecting portion (100), the Z-direction guide column (252) is simultaneously pushed to slide until pressure is applied to the Z-direction sensor (251).

5. A test device for a tilt-rotor aircraft nacelle according to claim 1, characterized in that: The first connecting portion (100) comprises a first sliding groove and a first connecting slider, the first sliding groove is arranged on the connecting seat (21), and the first sliding groove is a through vertical groove, the first connecting slider is arranged on the first mounting end (221), and the first connecting slider is slidably connected in the first sliding groove.

6. A test device for a tilt-rotor aircraft nacelle according to claim 1, characterized in that: The second connecting portion (200) comprises a second slide groove and a second connecting slider, the second slide groove is arranged on the limiting member (23), and the second slide groove is used to limit the second connecting slider to slide only in the horizontal direction, the second connecting slider is arranged on the second mounting end (222), and the second connecting slider is slidably connected in the second slide groove.

7. A test device for a tiltrotor aircraft nacelle according to claim 1, characterized in that: The nacelle connection part (210) is a mounting boss, a tilting shaft mounting groove is arranged in the mounting boss, and a plurality of through-going assembly holes (211) are arranged on the groove wall of the tilting shaft mounting groove.

8. A test device for a tiltrotor aircraft nacelle according to claim 7, characterized in that: The transverse cross section of the tilt shaft installation groove is a regular polygon.

9. A test device for a tiltrotor aircraft nacelle according to claim 1, characterized in that: The guide member (22) comprises a first guide block and a second guide block, wherein the first guide block and the second guide block are respectively arranged on two sides of the connecting seat (21); The limiting member (23) is provided with a mounting groove (230), the first guide block and the second guide block are both provided in the mounting groove (230), and clamping tables (233) are provided on both sides of the mounting groove (230), and the first guide block and the second guide block respectively abut against the clamping tables (233).

10. A test device for a nacelle of a tiltrotor aircraft according to any one of claims 1 to 9, characterized in that: The fixing device comprises a mounting base plate (11) and a mounting bracket (12), wherein the mounting bracket (12) is fixedly connected to the top of the mounting base plate (11), and the mounting bracket (12) is provided with a fixing portion, and the test assembly is fixedly connected to the fixing portion.

Images