A fixed-wing aircraft rudder deflection calibrator

Abstract

The present invention discloses a fixed-wing aircraft rudder angle calibrator, comprising a base plate and a pointer fixed to the aircraft rudder via a pointer clamp. One end of the base plate is connected to a front bracket via an adjustment screw, and the other end of the base plate is connected to two rear brackets via an adjustment screw. A tail clamp is mounted on the rear bracket. A leveling bubble and a movable plate are provided on the base plate, and a graduated dial is fixed to the movable plate. One end of the pointer is clamped to the pointer clamp, and the other end of the pointer is close to a scale line on the graduated dial. The present invention achieves calibration of the fixed-wing aircraft rudder angle by fixing the graduated dial to the aircraft's tail wing and clamping the pointer to the aircraft's rudder so that it deflects with the rudder, thereby forming an angle between the pointer and the graduated scale. The invention has the characteristics of simple structure, convenient and intuitive operation.

Description

Technical Field

[0001] The invention belongs to the technical field of aircraft manufacturing, maintenance and measurement, and in particular relates to a rudder deflection calibrator for a fixed-wing aircraft. Background Art

[0002] The rudder of a fixed-wing aircraft is the movable part of the vertical tail that controls the aircraft's heading. It is usually hinged to the rear of the vertical stabilizer to control the aircraft's heading.

[0003] The accuracy of the rudder deflection angle on fixed-wing aircraft can affect the pilot's flight control and the correctness of the aircraft's heading. Therefore, rudder deflection calibration is essential for aircraft manufacturing, commissioning, and maintenance. Traditionally, fixed-wing aircraft rudder deflection angle measurement has been performed using electronic inclinometers, which are inconvenient, time-consuming, and complex to operate. Summary of the Invention

[0004] The object of the present invention is to provide a fixed-wing aircraft rudder deflection calibrator to solve the problems in the above-mentioned background technology and realize the deflection angle measurement of the fixed-wing aircraft rudder.

[0005] The technical solution adopted to achieve the above-mentioned purpose is a fixed-wing aircraft rudder deflection calibrator, comprising a base plate and a pointer fixed on the aircraft rudder by a pointer clamp, one end of the base plate is connected to a front bracket by an adjustment screw, and the other end of the base plate is connected to two rear brackets by an adjustment screw, and a tail clamp is installed on the rear bracket. A leveling bubble and a movable plate are provided on the base plate, and a scale dial is fixed on the movable plate. One end of the pointer is clamped on the pointer clamp, and the other end of the pointer is close to the scale line on the scale dial.

[0006] Furthermore, the upper end of the front bracket is connected to the bottom plate through an adjustment screw, and the lower end of the front bracket is placed on both sides of the tail ridge of the rear fuselage of the aircraft.

[0007] Furthermore, there are two rear brackets, and the two rear brackets are respectively clamped on the left and right horizontal tail wings of the aircraft through tail clips.

[0008] Furthermore, the movable plate is fixed to the base plate by fixing screws. Beneficial effects

[0009] Compared with the prior art, the present invention has the following advantages.

[0010] The invention uses a scale fixed on the tail wing of the aircraft, and a pointer clamped on the aircraft rudder to swing with the rudder, so that an angle is formed between the pointer and the scale, thereby realizing the calibration of the rudder deflection angle of the fixed-wing aircraft; the invention has the characteristics of simple structure, convenient and intuitive operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] As shown in the figure: 1-pointer clamp, 2-leveling bubble, 3-pointer, 4-fixing screw, 5-moving plate, 6-scale, 7-base plate, 8-adjusting screw, 9-front bracket, 10-tail clamp, 11-rear bracket, 12-adjusting screw. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with the embodiments and drawings.

[0015] like Figure 1 As shown, a fixed-wing aircraft rudder angle calibrator includes a base plate 7 and a pointer 3 fixed to the aircraft rudder via a pointer clamp 1. One end of the base plate 7 is connected to a front bracket 9 via an adjustment screw 8, and the other end of the base plate 7 is connected to two rear brackets 11 via an adjustment screw 12. A tail clamp 10 is mounted on the rear bracket 11. A leveling bubble 2 and a movable plate 5 are provided on the base plate 7. A scale 6 is fixed to the movable plate 5. One end of the pointer 3 is clamped to the pointer clamp 1, and the other end of the pointer 3 is close to the scale line on the scale 6.

[0016] The upper end of the front bracket 9 is connected to the bottom plate 7 through an adjustment screw 8, and the lower end of the front bracket 9 is placed on both sides of the tail ridge of the rear fuselage of the aircraft.

[0017] There are two rear brackets 11 , and the two rear brackets 11 are clamped on the left and right horizontal tails of the aircraft respectively through tail clips 10 .

[0018] The movable plate 5 is fixed on the base plate 7 by fixing screws 4 .

[0019] In the present invention, the base plate 7 is connected to a front bracket 9 and two rear brackets 11 respectively through an adjustment screw 8 and two adjustment screws 12 to form a test platform, and the angle of the test platform and the horizontal plane is adjusted by leveling the water bubble 2 and adjusting the adjustment screws 8 and 12; the pointer 3 is fixed to the aircraft rudder through the pointer clamp 1 and deflects along with the aircraft rudder; the scale 6 is fixed to the movable plate 5, and the movable plate 5 moves back and forth so that the distance between the pointer 3 and the inner circle of the scale 6 is kept consistent, and the center of the scale 6 coincides with the rotation axis of the aircraft rudder; the aircraft rudder is deflected, and the angle formed by the pointer 3 on the scale 6 is read.

[0020] During the specific implementation of the present invention, after the aircraft is leveled, the two feet of the front bracket 9 are placed on both sides of the tail spine of the rear fuselage of the aircraft, specifically below and behind the rudder; the two rear brackets 11 are respectively clamped on the left and right horizontal tail wings of the aircraft through two tail clamps 10, and the bottom plate 7 is fixed by an adjusting screw 8 and two adjusting screws 12 to form a test platform; the scale 6 is fixed on the movable plate 5, and the movable plate 5 is fixed to the bottom plate 7 by a fixing screw 4. According to the indication, the adjusting screw 8 and the adjusting screw 12 are adjusted to make the leveling bubble 2 display horizontal, thereby ensuring that the scale surface of the scale 6 is perpendicular to the axis of the aircraft rudder; the pointer 3 is fixed to the aircraft rudder through the pointer clamp 1, so that the pointer 3 points to the same chord line of the aircraft rudder and the pointer is as close to the scale line of the scale 6 as possible; the aircraft rudder is yawed by moving the movable plate 5 back and forth so that the distance between the pointer 3 and the inner circle of the scale 6 is consistent, completing the installation of the equipment; the aircraft rudder is yawed by the pointer 3 indicating on the scale 6, and the aircraft rudder deflection reading is read.

[0021] The invention provides a rudder deflection calibrator for a fixed-wing aircraft. The calibrator uses a scale fixed on the tail wing of the aircraft, and a pointer clamped on the rudder of the aircraft to swing with the rudder, so that an angle is formed between the pointer and the scale, thereby realizing calibration of the rudder deflection angle of the fixed-wing aircraft.

Claims

1. A fixed-wing aircraft rudder deflection calibrator, comprising a base plate (7) and a pointer (3) fixed to the aircraft rudder via a pointer clamp (1), characterized in that: One end of the base plate (7) is connected to a front bracket (9) via an adjusting screw (8), and the other end of the base plate (7) is connected to two rear brackets (11) via an adjusting screw (12). A tail clamp (10) is installed on the rear bracket (11). A leveling bubble (2) and a movable plate (5) are provided on the base plate (7). A scale plate (6) is fixed on the movable plate (5). One end of the pointer (3) is clamped on the pointer clamp (1), and the other end of the pointer (3) is close to the scale line on the scale plate (6). The upper end of the front bracket (9) is connected to the base plate (7) via an adjusting screw (8), and the lower end of the front bracket (9) is placed on both sides of the tail ridge of the rear fuselage of the aircraft. There are two rear brackets (11), and the two rear brackets (11) are clamped on the horizontal tail fins on the left and right sides of the aircraft respectively via the tail clamps (10). The movable plate (5) is fixed to the base plate (7) via fixing screws (4).

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