A hatch servo loading mechanism

Abstract

The present application belongs to the technical field of aircraft simulation test, and particularly relates to a cabin door servo loading mechanism. The cabin door servo loading mechanism comprises a clamping body (1), a main rotating disc (3), a first rotating disc support (4), a hydraulic servo swing cylinder (5), a first steel cable (7), a cabin door support (8), a slave rotating disc (9), a steel cable fixing bolt (10), a second steel cable (13), a second rotating disc support (15), a cabin door fixing clamp (16) and a cabin door (17). The cabin door fixing clamp (16) is used for fixing the cabin door (17). The cabin door fixing clamp (16) and the rotating disc (9) are welded into an integrated body. The two ends of the first steel cable (7) are fixed with the main rotating disc (3) and the slave rotating disc (9) through the steel cable fixing bolt (10) respectively. The two ends of the second steel cable (13) are fixed with the main rotating disc (3) and the slave rotating disc (9) through the steel cable fixing bolt (10) respectively. The hydraulic servo swing cylinder (5) is coaxially connected with the main rotating disc (3). The hydraulic servo swing cylinder (5) is fixed on the horizontal part of the clamping body (1).

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of aircraft simulation test, and particularly relates to a cabin door servo loading mechanism for servo loading of a cabin door during cabin door ground test. BACKGROUND

[0002] During cabin door ground test, the aerodynamic load on the cabin door during opening and closing and the fatigue characteristics of related parts are often simulated on the ground; in order to accurately measure various test data during opening and closing of the cabin door, a special loading fixture is needed on the cabin door during the test. The method of hanging sandbags on the cabin door is usually used to simulate the aerodynamic load, but this method cannot simulate the real-time aerodynamic load on the cabin door.

[0003] Due to the use of counterweight loading, the number of weights is large and the weight is heavy, and it is not realistic and time-consuming to add and remove weights on the cabin door in real time during the test, and the aerodynamic load on the cabin door cannot be realistically simulated; at the same time, the center of gravity of the fixture is located in front of the structure, and the large structural gap also affects the accuracy of the test data. SUMMARY

[0004] The present application aims to provide a cabin door servo loading mechanism, which improves the accuracy and consistency of test data and improves test efficiency and quality.

[0005] TECHNICAL SOLUTION

[0006] A cabin door servo loading mechanism comprises a clamp body 1, a main turntable 3, a first turntable support 4, a hydraulic servo swing cylinder 5, a first steel cable 7, a cabin door support 8, a slave turntable 9, a steel cable fixing bolt 10, a second steel cable 13, a second turntable support 15, a cabin door fixing fixture 16, and a cabin door 17, wherein the main turntable 3 and the slave turntable 9 are arranged on the first turntable support 4 and the second turntable support 15 respectively, and the cabin door 17 is fixed by the cabin door fixing fixture 16; the cabin door fixing fixture 16 is welded with the slave turntable 9 as a whole; the two ends of the first steel cable 7 are fixed with the main turntable 3 and the slave turntable 9 through the steel cable fixing bolt 10 respectively; the two ends of the second steel cable 13 are fixed with the main turntable 3 and the slave turntable 9 through the steel cable fixing bolt 10 respectively; the hydraulic servo swing cylinder 5 is coaxially connected with the main turntable 3; the clamp body 1 comprises a horizontal part and a vertical part, and the hydraulic servo swing cylinder 5 is fixed on the horizontal part of the clamp body 1.

[0007] Further, a stop block 11 is arranged on the main turntable 3, a first limiting block 2 is arranged on the vertical part of the clamp body 1, and a second limiting block 12 is arranged on the horizontal part of the clamp body 1, which are used to control the opening and closing angle of the cabin door 17.

[0008] Further, the first limiting block 2 is a bolt.

[0009] Further, the second limiting block 12 is a bolt.

[0010] Furthermore, a first cable tensioner 6 is provided on the first cable 7.

[0011] Furthermore, a second cable tensioner 14 is provided on the second cable 13.

[0012] Furthermore, the hatch door fixing clamp 16 fixes the hatch door 17 with the hatch door fixing bolts 18.

[0013] Furthermore, the hydraulic servo swing cylinder 5 controls the magnitude of the loading force on the hatch 17 through feedback from the first cable tensioner 6 and the second cable tensioner 14.

[0014] Beneficial effects:

[0015] The present invention uses a hydraulic servo swing cylinder 5 connected to a turntable 3. The turntable 3 transmits force to a turntable 9 through steel cables 7 and 13. The turntable 9 transmits force to a hatch 17 through a hatch fixing clamp 16. Steel cable tensioners 6 and 14 are respectively arranged on steel cables 7 and 13. The hydraulic servo swing cylinder 5 controls the magnitude of the loading force on the hatch 17 through the feedback of the steel cable tensioners on the steel cables. The operator can accurately simulate the aerodynamic load of the hatch through the control mechanism of the hydraulic servo swing cylinder 5, which improves the stability and consistency of the test data and improves the test efficiency and quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a hatch servo loading mechanism according to an embodiment of the present invention;

[0017] The components include: clamp body 1, first limiting block 2, main turntable 3, turntable support 4, hydraulic servo swing cylinder 5, first steel cable tensioner 6, first steel cable 7, hatch support 8, turntable 9, steel cable fixing bolt 10, stop block 11, second limiting block 12, second steel cable 13, second steel cable tensioner 14, turntable support 15, hatch fixing clamp 16, hatch 17, and hatch fixing bolt 18. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0019] In the description of this invention, it should be understood that the terms "center", "axial", "vertical", "upper", "lower", "upper end", "bottom end", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0020] To address the time-consuming and labor-intensive nature of loading counterweights onto the hatch, which fails to realistically simulate the aerodynamic loads on the hatch, and the forward-positioned weight center and large structural clearances of the fixture itself, which also affect the accuracy of experimental data, a hatch servo loading mechanism is proposed. This mechanism comprises mechanical, electrical, and hydraulic components, achieving a high degree of automated loading and realistically simulating the aerodynamic loads on the hatch. This improves the accuracy and consistency of experimental data, as well as enhances experimental efficiency and quality.

[0021] A hatch servo loading mechanism. For example... Figure 1 As shown: including clamp body 1, limit block 2, turntable 3, turntable support 4, hydraulic servo swing cylinder 5, steel cable tensioner 6, steel cable 7, hatch door support 8, turntable 9, steel cable fixing bolt 10, stop block 11, limit block 12, steel cable 13, steel cable tensioner 14, turntable support 15, hatch door fixing clamp 16, hatch door 17, and hatch door fixing bolt 18.

[0022] The solution involves using a hatch fixing clamp 16 to secure the hatch 17 with hatch fixing bolts 18, welding the hatch fixing clamp 16 to the turntable 9, fixing the turntables 3 and 9 to the steel cables 7 and 13 with bolts, connecting the hydraulic servo swing cylinder 5 to the turntable 3, transmitting force from the turntable 3 to the turntable 9 via the steel cables 7 and 13, and transmitting force from the turntable 9 to the hatch 17 via the hatch fixing clamp 16. Steel cable tensioners 6 and 14 are respectively positioned on the steel cables 7 and 13. The hydraulic servo swing cylinder 5 controls the loading force on the hatch 17 based on feedback from the steel cable tensioners on the steel cables. Limit blocks 2 and 12 control the opening and closing angles of the hatch 17.

[0023] The present invention will now be described in detail with reference to the accompanying drawings.

[0024] The operation process is as follows:

[0025] 1. The hatch 17 is secured to the hatch 17 using the hatch fixing clamp 16 and the hatch fixing bolts 18. The hatch fixing clamp 16 is welded to the turntable 9 as a whole. The turntable 3 and the turntable 9 are fixed to the steel cables 7 and 13 with bolts. The hydraulic servo swing cylinder 5 is connected to the turntable 3. The steel cable tensioner 6 and the steel cable tensioner 14 are respectively arranged on the steel cables 7 and 13. The hydraulic servo swing cylinder 5 controls the magnitude of the loading force on the hatch 17 through the feedback from the steel cable tensioners on the steel cables. The limit block 2 and the limit block 12 control the opening and closing angle of the hatch 17.

[0026] 2. Operators can accurately simulate the aerodynamic load of the hatch by controlling the hydraulic servo swing cylinder 5, which improves the stability and consistency of the test data and enhances the efficiency and quality of the test.

[0027] By using this invention, operators can accurately simulate the aerodynamic load of the hatch through the control mechanism of the swing cylinder, which improves the stability and consistency of the test data and enhances the efficiency and quality of the test.

[0028] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A hatch servo loading mechanism, characterized in that, include: The components include: clamping body (1), main turntable (3), first turntable support (4), hydraulic servo swing cylinder (5), first steel cable (7), hatch support (8), secondary turntable (9), steel cable fixing bolt (10), second steel cable (13), second turntable support (15), hatch fixing clamp (16), and hatch (17). The main turntable (3) and the secondary turntable (9) are respectively set on the first turntable support (4) and the second turntable support (15). The hatch door fixing clamp (16) fixes the hatch door (17). The hatch door fixing clamp (16) is welded to the turntable (9) as a whole. The two ends of the first steel cable (7) are fixed to the main turntable (3) and the secondary turntable (9) respectively by steel cable fixing bolts (10). The two ends of the second steel cable (13) are fixed to the main turntable (3) and the secondary turntable (9) respectively by steel cable fixing bolts (10). The hydraulic servo swing cylinder (5) is coaxially connected to the main turntable (3). The clamp body (1) includes a horizontal part and a vertical part. The hydraulic servo swing cylinder (5) is fixed on the horizontal part of the clamp body (1).

2. The hatch servo loading mechanism according to claim 1, characterized in that, The main turntable (3) is provided with a stop block (11), the vertical part of the clamp body (1) is provided with a first limiting block (2), and the horizontal part of the clamp body (1) is provided with a second limiting block (12), which are used to control the opening and closing angle of the hatch (17).

3. The hatch servo loading mechanism according to claim 2, characterized in that, The first limiting block (2) is a bolt.

4. The hatch servo loading mechanism according to claim 2, characterized in that, The second limiting block (12) is a bolt.

5. The hatch servo loading mechanism according to claim 1, characterized in that, The first steel cable (7) is equipped with a first steel cable tensioner (6).

6. The hatch servo loading mechanism according to claim 1, characterized in that, A second cable tensioner (14) is provided on the second cable (13).

7. The hatch servo loading mechanism according to claim 1, characterized in that, The hatch fixing clamp (16) fixes the hatch (17) with the hatch fixing bolts (18).

8. The hatch servo loading mechanism according to claim 1, characterized in that, The hydraulic servo swing cylinder (5) controls the magnitude of the loading force on the hatch (17) through feedback from the first cable tensioner (6) and the second cable tensioner (14).

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