Control surface deflection angle measuring device and method

Abstract

The invention relates to a simple control plane deflection angle measuring device and method. The simple control plane deflection angle measuring device comprises a stabilizer clamping structure, a pointer rotating shaft structure, a pointer structure and a control plane clamping structure. And the pointer rotating shaft structure and the stabilizer clamping structure are rigidly connected and fixed without rotating offset displacement. The stabilizer clamping structure is composed of two parts, the upper part is a dial plate of a semicircular structure, and the marked angle scale range is from-90 degrees to 0 degree to 90 degrees. The lower part is a wedge-shaped stabilizer clamping component, and the wing-shaped component stabilizer is fixed through an upper inclined plane and a lower inclined plane. The pointer structure can rotate around the pointer rotating shaft structure, the control surface clamping structure and the pointer structure can slide up and down, and the control surface clamping structure can be fixed to the tangent plane of the control surface. The simple control surface deflection angle measuring device can be used for rapidly measuring production and installation gaps of aircraft control surfaces, and has the advantages of simplicity, convenience, rapidness, low cost, high precision and the like.

Description

Technical Field

[0001] The present invention belongs to the field of aviation structures, and specifically, relates to a device and method for measuring the deflection angle of a rudder surface, which can be applied to production accuracy measurement in the early stage of a test flight, verify the free deflection angle amplitude of a wing or missile wing rudder surface, timely eliminate the influence of production design errors, and improve flight safety. Background Art

[0002] The control surface refers to the aerodynamic wing surface that uses deflection in the airflow to generate the balance force and control force of the aircraft to control the flight. It is also called the control surface. The aircraft control surface is divided into elevators responsible for pitch attitude, rudders for yaw attitude, and ailerons for roll attitude. As one of the important structural components, the manufacturing accuracy of the control surface directly affects the flight safety. Even if the control surface is only slightly deflected, it will produce a huge torque effect with the airflow due to high-speed flight, thereby changing the flight attitude.

[0003] During the manufacturing process of the rudder, the free deflection range of the rudder deflection angle must be strictly controlled within a small range, otherwise the flight control system will not be able to accurately detect the control attitude, resulting in loss of control or even crash. After the rudder is produced and installed, the deflection angle of the rudder needs to be measured. The current simple method is mainly to use a ruler to measure the upper and lower deflection displacement of the trailing edge of the rudder, and then calculate the deflection angle through trigonometric functions. This method is slow to measure and the measurement accuracy is not enough; the complex method currently used is precision instruments and equipment, which leads to high measurement costs, poor equipment mobility, and limited measurement environment. Summary of the invention

[0004] The technical problem solved by the present invention is to overcome the deficiencies of the prior art and provide a simple device for measuring the deflection angle of a rudder surface, so as to measure the deflection angle of the rudder surface quickly and accurately.

[0005] The solution to the technical problem of the present invention is: a simple device for measuring the deflection angle of a rudder surface, the device comprising a stabilizer clamping structure, a pointer rotating shaft structure, a pointer structure, and a rudder surface clamping structure;

[0006] The stabilizer clamping structure is used for being assembled on the stabilizer and providing a semicircular structure dial; after being assembled, the semicircular structure dial is perpendicular to the section of the stabilizer, and the scale line of the protractor is arranged on the semicircular structure dial; after being assembled, the 0 scale line of the protractor is perpendicular to the section of the stabilizer;

[0007] The pointer rotating shaft structure is fixedly connected to the stabilizer clamping structure and is perpendicular to the semicircular structure dial;

[0008] The pointer structure is connected to the pointer rotation axis structure and can rotate around the pointer rotation axis structure;

[0009] The rudder surface clamping structure has one side used to clamp the rudder surface, and the upper and lower surfaces are tangent and fixed to the rudder surface to simulate the wedge angle of the rudder surface, and the other side is embedded in the groove at the lower part of the pointer structure. When the rudder surface deflects, the rudder surface clamping structure and the pointer structure slide with the rudder surface and deflect at an angle. The angle pointed by the pointer structure on the dial of the stabilizer surface clamping structure is read to obtain the rudder surface deflection angle.

[0010] Preferably, the stabilizer clamping structure consists of two parts, the upper part is a semicircular structure dial with an angle scale range of -90° to 90°, and the lower part is a clamping piece with a wedge-shaped groove, the wedge angle of the wedge-shaped groove is the same as the wedge angle of the stabilizer, the clamping piece is inserted into the rudder gap to clamp the stabilizer, and the wedge-shaped groove matches the stabilizer.

[0011] Preferably, the clamping member with the wedge-shaped groove comprises a first upper inclined plate, a first lower inclined plate and a first vertical side plate;

[0012] One side of the first upper inclined plate and the first lower inclined plate is connected to the first vertical side plate, and the first upper inclined plate and the first lower inclined plate form a certain angle with each other, and the angle is the same as the wedge angle of the stabilizer. The first vertical side plate is inserted from the rudder gap, the first upper inclined plate is attached above the upper surface of the stabilizer, and the first lower inclined plate is attached below the lower surface of the stabilizer.

[0013] Preferably, the pointer rotation axis structure is a cylindrical structure.

[0014] Preferably, the head of the pointer structure is pointed.

[0015] Preferably, the rudder surface clamping structure includes a second upper inclined plate, a second lower inclined plate and a second vertical side plate, one side of the second upper inclined plate and the second lower inclined plate is connected to the second vertical side plate, the second upper inclined plate and the second lower inclined plate form a certain angle with each other, and the angle is the same as the wedge angle of the rudder surface, the second vertical side plate is inserted from the rudder seam, the first upper inclined plate is attached to the upper surface of the rudder, and the first lower inclined plate is attached to the lower surface of the rudder.

[0016] Preferably, a notch is provided on one side of the pointer structure, the second vertical side plate is embedded in the notch of the pointer structure, and the pointer structure slides along the second vertical side plate.

[0017] The present invention also proposes a method for measuring a rudder surface deflection angle based on the simple rudder surface deflection angle measuring device, the method comprising the following steps:

[0018] Insert the clamping piece of the stabilizer clamping structure into the rudder gap to clamp the stabilizer, and the wedge-shaped groove matches the stabilizer, so that the first upper inclined plate of the stabilizer clamping structure is attached above the upper surface of the stabilizer, and the first lower inclined plate is attached below the lower surface of the stabilizer, the semicircular structure dial is perpendicular to the stabilizer, and the scale line of the protractor is set on the semicircular structure dial. After assembly, the 0 scale line of the protractor is perpendicular to the stabilizer;

[0019] Insert the rudder surface clamping structure into the rudder gap to clamp the rudder surface, and adjust the sliding groove structure with the pointer structure so that the second inclined plate of the rudder surface clamping structure is tangent to the upper surface of the rudder surface and fixed;

[0020] Deflect the rudder surface so that the rudder surface clamping structure and the pointer structure simultaneously follow the rudder surface to deflect at an angle. The angle value indicated by the pointer structure is read through the dial of the stabilizer surface clamping structure, and the angle value is the deflection angle.

[0021] The beneficial effects of the present invention compared with the prior art are:

[0022] (1) The present invention uses a pointer structure and a dial component to quickly read the deflection angle of the rudder surface, which has the advantages of being fast, simple, and highly accurate.

[0023] (2) Compared with complex rudder surface deflection angle detection equipment, the present invention has the advantages of small size and no need for disassembly or assembly. It is not limited by the usage scenario and can even complete the measurement directly on the whole machine.

[0024] (3) The present invention does not require the cooperation of a ruler or other device, and does not require formula conversion. Compared with the traditional simple measurement method, the deflection angle reading can be completed directly, which has the advantages of being fast and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a demonstration diagram of the rudder surface deflection angle measurement according to an embodiment of the present invention.

[0026] Figure 2 This is an assembly diagram of the stabilizer clamping structure and the pointer according to an embodiment of the present invention.

[0027] Figure 3 This is an assembly diagram of the rudder surface clamping structure and the pointer according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the embodiments.

[0029] like Figure 1 As shown, the present invention provides a simple measuring device for the deflection angle of a rudder surface, the simple measuring device comprises a stabilizer surface clamping structure 1, a pointer rotating shaft structure 2, a pointer structure 3, and a rudder surface clamping structure 4;

[0030] The stabilizer clamping structure 1 is used to be assembled on the stabilizer 5 and is provided with a semicircular structure dial; after assembly, the semicircular structure dial is perpendicular to the stabilizer 5, and the scale lines of the protractor are arranged on the semicircular structure dial, ranging from -90° to 0° to 90°, and after assembly, the 0 scale line of the protractor is perpendicular to the stabilizer;

[0031] The pointer rotation axis structure 2 is fixedly connected to the stabilizer clamping structure 1 and is perpendicular to the semicircular structure dial; preferably, the pointer rotation axis structure is rigidly connected and fixed to the stabilizer clamping structure without rotational offset displacement, thereby playing the role of rotation support for the pointer structure.

[0032] The pointer structure 3 is connected to the pointer rotation axis structure 2 and can rotate around the pointer rotation axis structure 2;

[0033] The rudder surface clamping structure 4 has one side for clamping the rudder surface, and the upper and lower surfaces are tangently fixed to the rudder surface 6 to simulate the wedge angle of the rudder surface, and the other side is embedded in the groove at the lower part of the pointer structure 3. When the rudder surface is deflected, the rudder surface clamping structure 4 and the pointer structure 3 slide with the rudder surface and deflect at an angle. The angle pointed by the pointer structure 3 on the dial of the stabilizer surface clamping structure 1 is read to obtain the rudder surface deflection angle.

[0034] Preferably, the stabilizer clamping structure 1 consists of two parts, the upper part is a semicircular structure dial with an angle scale range of -90° to 90°, and the lower part is a clamping piece with a wedge-shaped groove, the wedge angle of the wedge-shaped groove is the same as the wedge angle of the wing-shaped component where the stabilizer is located, the clamping piece is inserted into the rudder gap to clamp the stabilizer, and the wedge-shaped groove matches the stabilizer.

[0035] Preferably, the clamping member with the wedge-shaped groove comprises a first upper inclined plate, a first lower inclined plate and a first vertical side plate;

[0036] One side of the first upper inclined plate and the first lower inclined plate is connected to the first vertical side plate, and the first upper inclined plate and the first lower inclined plate form a certain angle with each other, and the angle is the same as the wedge angle with the stabilizer surface. The first vertical side plate is inserted from the rudder gap, the first upper inclined plate is attached above the upper surface of the stabilizer surface, and the first lower inclined plate is attached below the lower surface of the stabilizer surface.

[0037] Preferably, the pointer rotating shaft structure 2 is a cylindrical structure.

[0038] Preferably, the head of the pointer structure 3 is pointed, and in order to improve the dial reading accuracy, it can rotate ±90° around the pointer rotation axis structure 2.

[0039] Preferably, the rudder surface clamping structure 4 comprises a second upper inclined plate, a second lower inclined plate and a second vertical side plate.

[0040] One side of the second upper inclined plate and the second lower inclined plate is connected to the second vertical side plate, and the second upper inclined plate and the second lower inclined plate form a certain angle with each other, and the angle is the same as the wedge angle of the rudder surface. The second vertical side plate is inserted from the rudder gap, the first upper inclined plate is attached above the upper surface of the rudder, and the first lower inclined plate is attached below the lower surface of the rudder.

[0041] Preferably, a notch is provided on one side of the pointer structure 3, the second vertical side plate is embedded in the notch of the pointer structure 3, and the pointer structure 3 slides along the second vertical side plate.

[0042] The present invention also provides a method for measuring a rudder surface deflection angle based on the simple rudder surface deflection angle measuring device, comprising the following steps:

[0043] Insert the clamping piece of the stabilizer clamping structure 1 into the rudder gap to clamp the stabilizer, and the wedge-shaped groove matches the stabilizer, so that the first upper inclined plate of the stabilizer clamping structure 1 is attached above the upper surface of the stabilizer, and the first lower inclined plate is attached below the lower surface of the stabilizer, and the semicircular structure dial is perpendicular to the stabilizer, and the scale line of the protractor is set on the semicircular structure dial. After assembly, the 0 scale line of the protractor is perpendicular to the stabilizer;

[0044] Insert the rudder surface clamping structure 4 into the rudder gap to clamp the rudder surface, and adjust the sliding groove structure with the pointer structure 3 so that the second inclined plate of the rudder surface clamping structure 4 is tangent to the upper surface of the rudder surface and fixed;

[0045] Deflect the rudder surface so that the rudder surface clamping structure 4 and the pointer structure 3 simultaneously follow the rudder surface to deflect in angle, and read the angle value indicated by the pointer structure 3 through the dial of the stabilizer clamping structure 1, which is the deflection angle.

[0046] It should be noted here that the contents not described in detail in this specification can be implemented by those skilled in the art through the description in this specification and the prior art, and therefore, they will not be described in detail.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. For those skilled in the art, several modifications and replacements can be made to the present invention without paying creative work, and all these modifications and replacements should be included in the protection scope of the present invention.

[0048] Although the present invention has been disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A simple measuring device for the deflection angle of a rudder surface, characterized in that: It comprises a stabilizer surface clamping structure (1), a pointer rotating shaft structure (2), a pointer structure (3), and a rudder surface clamping structure (4); The stabilizer clamping structure (1) is used for being assembled on the stabilizer and providing a semicircular structure dial; after being assembled, the semicircular structure dial is perpendicular to the section of the stabilizer, and the scale line of the protractor is arranged on the semicircular structure dial; after being assembled, the 0 scale line of the protractor is perpendicular to the section of the stabilizer; The pointer rotating shaft structure (2) is fixedly connected to the stabilizer clamping structure (1) and is perpendicular to the semicircular structure dial; The pointer structure (3) is connected to the pointer rotation axis structure (2) and can rotate around the pointer rotation axis structure (2); The rudder surface clamping structure (4) has one side for clamping the rudder surface, and the upper and lower surfaces are tangent and fixed to the rudder surface to simulate the wedge angle of the rudder surface, and the other side is embedded in the groove of the lower part of the pointer structure (3). When the rudder surface deflects, the rudder surface clamping structure (4) and the pointer structure (3) slide with the rudder surface and deflect at an angle. The angle pointed by the pointer structure (3) on the dial of the stabilizer surface clamping structure (1) is read to obtain the rudder surface deflection angle.

2. A simple measuring device for the deflection angle of a rudder surface according to claim 1, characterized in that: The stabilizer clamping structure (1) consists of two parts, the upper part is a semicircular structure dial with an angle scale range of -90° to 90°, and the lower part is a clamping piece with a wedge-shaped groove, the wedge angle of the wedge-shaped groove is the same as the wedge angle of the stabilizer, the clamping piece is inserted into the rudder gap to clamp the stabilizer, and the wedge-shaped groove matches the stabilizer.

3. A simple measuring device for the deflection angle of a rudder surface according to claim 2, characterized in that: The clamping member with the wedge-shaped groove includes a first upper inclined plate, a first lower inclined plate and a first vertical side plate; One side of the first upper inclined plate and the first lower inclined plate is connected to the first vertical side plate, and the first upper inclined plate and the first lower inclined plate form a certain angle with each other, and the angle is the same as the wedge angle of the stabilizer. The first vertical side plate is inserted from the rudder gap, the first upper inclined plate is attached above the upper surface of the stabilizer, and the first lower inclined plate is attached below the lower surface of the stabilizer.

4. A simple measuring device for the deflection angle of a rudder surface according to claim 1, characterized in that: The pointer rotating shaft structure (2) is a cylindrical structural component.

5. The simple measuring device for the deflection angle of a rudder surface according to claim 1, characterized in that: The head of the pointer structure (3) is pointed.

6. The simple measuring device for the deflection angle of a rudder surface according to claim 1, characterized in that: The rudder surface clamping structure (4) comprises a second upper inclined plate, a second lower inclined plate and a second vertical side plate, one side of the second upper inclined plate and the second lower inclined plate are connected to the second vertical side plate, the second upper inclined plate and the second lower inclined plate form a certain angle with each other, and the angle is the same as the wedge angle of the rudder surface, the second vertical side plate is inserted from the rudder gap, the first upper inclined plate is attached to the upper surface of the rudder, and the first lower inclined plate is attached to the lower surface of the rudder.

7. A simple measuring device for the deflection angle of a rudder surface according to claim 6, characterized in that: A notch is provided on one side of the pointer structure (3), the second vertical side plate is embedded in the notch of the pointer structure (3), and the pointer structure (3) slides along the second vertical side plate.

8. A method for measuring the deflection angle of a rudder surface based on the simple measuring device for the deflection angle of a rudder surface, characterized in that The steps include: Insert the clamping piece of the stabilizer clamping structure (1) into the rudder gap to clamp the stabilizer, and the wedge-shaped groove matches the stabilizer, so that the first upper inclined plate of the stabilizer clamping structure (1) is attached above the upper surface of the stabilizer, and the first lower inclined plate is attached below the lower surface of the stabilizer, and the semicircular structure dial is perpendicular to the stabilizer, and the scale line of the protractor is arranged on the semicircular structure dial, and after assembly, the 0 scale line of the protractor is perpendicular to the stabilizer; The rudder surface clamping structure (4) is inserted into the rudder gap to clamp the rudder surface, and the rudder surface is slidably adjusted with the slide groove structure of the pointer structure (3), and the second inclined plate of the rudder surface clamping structure (4) is tangent to the upper surface of the rudder surface and fixed; The rudder surface is deflected so that the rudder surface clamping structure (4) and the pointer structure (3) simultaneously follow the rudder surface to deflect in angle, and the angle value indicated by the pointer structure (3) is read through the dial of the stabilizer surface clamping structure (1), and the angle value is the deflection angle.

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