Cabin door servo loading mechanism

Abstract

The invention belongs to the technical field of aircraft simulation tests, and particularly relates to a cabin door servo loading mechanism. Comprising a clamp body (1), a main rotating disc (3), a first rotating disc support (4), a hydraulic servo oscillating cylinder (5), a first steel cable (7), a cabin door support (8), a driven 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), and the cabin door fixing clamp (16) fixes the cabin door (17). The cabin door fixing clamp (16) and the turntable (9) are welded into a whole; two ends of the first steel cable (7) are respectively fixed with the main turntable (3) and the slave turntable (9) through steel cable fixing bolts (10); the two ends of the second steel cable (13) are respectively fixed with the main turntable (3) and the slave turntable (9) through steel cable fixing bolts (10); the hydraulic servo oscillating cylinder (5) is coaxially connected with the main turntable (3); and the hydraulic servo oscillating cylinder (5) is fixed on the horizontal part of the clamp body (1).

Description

Technical Field

[0001] The invention belongs to the technical field of aircraft simulation tests, and in particular relates to a cabin door servo loading mechanism, which is used for servo loading a cabin door during a cabin door ground test. Background Art

[0002] In the ground test of cabin doors, the aerodynamic loads and fatigue characteristics of related parts and components during the retraction and extension process are often simulated on the ground; in order to accurately measure the test data during the retraction and extension of the aircraft cabin door, a special loading fixture is required on the cabin door during the test. The aerodynamic load is usually simulated by hanging sandbags on the cabin door, which cannot simulate the real-time aerodynamic load on the cabin door.

[0003] Since weights are used for counterweight loading, and there are many weights and they are heavy, it is unrealistic, time-consuming and labor-intensive to add or subtract weights from the hatch in real time during the test, and it cannot realistically simulate the aerodynamic load of the hatch. At the same time, the center of gravity of the fixture itself is forward and the structural gap is large, which also affects the accuracy of the test data. Summary of the invention

[0004] Purpose of the invention: To provide a hatch door servo loading mechanism, which improves the accuracy and consistency of test data and can improve test efficiency and quality.

[0005] Technical solution:

[0006] A hatch 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 hatch support 8, a slave turntable 9, a steel cable fixing bolt 10, a second steel cable 13, a second turntable support 15, a hatch door fixing fixture 16, and a hatch 17, wherein the main turntable 3 and the slave turntable 9 are respectively arranged on the first turntable support 4 and the second turntable support 15, and the hatch door 17 is fixed by the hatch door fixing fixture 16; the hatch door fixing fixture 16 is welded to the turntable 9 as a whole; the two ends of the first steel cable 7 are respectively fixed to the main turntable 3 and the slave turntable 9 by the steel cable fixing bolts 10; the two ends of the second steel cable 13 are respectively fixed to the main turntable 3 and the slave turntable 9 by the steel cable fixing bolts 10; the hydraulic servo swing cylinder 5 is coaxially connected to 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] Furthermore, a stopper 11 is provided on the main turntable 3 , a first limit block 2 is provided on the vertical portion of the clamp body 1 , and a second limit block 12 is provided on the horizontal portion of the clamp body 1 , for controlling the retracting and extending angle of the hatch 17 .

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

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

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

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

[0012] Furthermore, the door fixing fixture 16 fixes the door 17 via the door fixing bolts 18 .

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

[0014] Beneficial effects:

[0015] According to the present invention, the hydraulic servo swing cylinder 5 is connected to the turntable 3, the turntable 3 transmits the force to the turntable 9 through the steel cables 7 and 13, the turntable 9 transmits the force to the cabin door 17 through the cabin door fixing clamp 16, the steel cable tensioner 6 and the steel cable tensioner 14 are arranged on the steel cable 7 and the steel cable 13 respectively, and the hydraulic servo swing cylinder 5 controls the loading force of the cabin door 17 through the feedback of the steel cable tensioner on the steel cable. The operator can simulate the pneumatic load of the cabin door more accurately through the control mechanism of the hydraulic servo swing cylinder 5, thereby improving the stability and consistency of the test data and improving the test efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Among them, the clamp body 1, the first limit block 2, the main turntable 3, the turntable support 4, the hydraulic servo swing cylinder 5, the first cable tensioner 6, the first cable 7, the door support 8, the turntable 9, the cable fixing bolt 10, the block 11, the second limit block 12, the second cable 13, the second cable tensioner 14, the turntable support 15, the door fixing clamp 16, the door 17, and the door fixing bolt 18. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the implementation of this application will be described in more detail in combination with the drawings in the implementation of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described implementation is a part of the implementation of this application, not all of the implementations. The implementation described below with reference to the drawings is exemplary and is intended to be used to explain this application, and cannot be understood as a limitation on this application. Based on the implementation in this application, all other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The implementation of this application is described in detail below in combination with the drawings.

[0019] In the description of the present invention, it is necessary to understand that the terms "center", "axial", "vertical", "up", "down", "upper end", "bottom end", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0020] In order to solve the problem that the door weight loading is time-consuming and laborious, and cannot realistically simulate the pneumatic load of the door; at the same time, the weight center of the fixture itself is forward and the structural gap is large, which also affects the accuracy of the test data. Therefore, a door servo loading mechanism is proposed. The servo loading mechanism is composed of mechanical, electrical and hydraulic components, has a high degree of automatic loading, and can realistically simulate the pneumatic load of the door, improve the accuracy and consistency of the test data, and improve the test efficiency and quality.

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

[0022] The solution is to use the hatch fixing fixture 16 to fix the hatch 17 through the hatch fixing bolts 18, and weld the hatch fixing fixture 16 and the turntable 9 into one, the turntable 3 and the turntable 9 are fixed with the steel cable 7 and the steel cable 13 by bolts, the hydraulic servo swing cylinder 5 is connected with the turntable 3, the turntable 3 transmits the force to the turntable 9 through the steel cable 7 and the steel cable 13, the turntable 9 transmits the force to the hatch 17 through the hatch fixing fixture 16, the steel cable tensioner 6 and the steel cable tensioner 14 are arranged on the steel cable 7 and the steel cable 13 respectively, and the hydraulic servo swing cylinder 5 controls the size of the loading force of the hatch 17 through the feedback of the steel cable tensioner on the steel cable. The limit block 2 and the limit block 12 are used to control the retracting and extending angle of the hatch 17.

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] The operation process is as follows:

[0025] 1. The hatch door 17 is fixed by the hatch door fixing fixture 16 through the hatch door fixing bolts 18, and the hatch door fixing fixture 16 is welded to the turntable 9 as a whole, the turntable 3 and the turntable 9 are fixed to the steel cable 7 and the steel cable 13 by 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 arranged on the steel cable 7 and the steel cable 13 respectively, and the hydraulic servo swing cylinder 5 controls the loading force of the hatch door 17 through the feedback of the steel cable tensioner on the steel cable. The limit block 2 and the limit block 12 are used to control the retracting and extending angle of the hatch door 17.

[0026] 2. The operator can simulate the pneumatic load of the hatch more accurately through the control mechanism of the hydraulic servo swing cylinder 5, thereby improving the stability and consistency of the test data and improving the test efficiency and quality.

[0027] By adopting the present invention, an operator can simulate the pneumatic load of the cabin door more accurately through the control mechanism of the swing cylinder, thereby improving the stability and consistency of the test data and improving the test efficiency and quality.

[0028] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A hatch door servo loading mechanism, characterized in that: include: A clamping body (1), a main turntable (3), a first turntable support (4), a hydraulic servo swing cylinder (5), a first steel cable (7), a hatch support (8), a slave turntable (9), a steel cable fixing bolt (10), a second steel cable (13), a second turntable support (15), a hatch fixing fixture (16), and a hatch (17), wherein: The main turntable (3) and the slave turntable (9) are respectively arranged on the first turntable support (4) and the second turntable support (15); the door fixing fixture (16) fixes the door (17); the door fixing fixture (16) and the turntable (9) are welded into one body; the two ends of the first steel cable (7) are respectively fixed to the main turntable (3) and the slave turntable (9) through the steel cable fixing bolts (10); the two ends of the second steel cable (13) are respectively fixed to the main turntable (3) and the slave turntable (9) through the steel cable fixing bolts (10); the hydraulic servo swing cylinder (5) is coaxially connected to 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).

2. The hatch door servo loading mechanism according to claim 1, characterized in that: A stopper (11) is arranged on the main turntable (3), a first limit block (2) is arranged on the vertical part of the clamp body (1), and a second limit block (12) is arranged on the horizontal part of the clamp body (1), for controlling the retracting and extending angle of the cabin door (17).

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

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

5. The hatch door servo loading mechanism according to claim 1, characterized in that: A first steel cable tensioner (6) is arranged on the first steel cable (7).

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

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

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

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