A device for measuring wing folding angle

Abstract

The present invention discloses a device for measuring the wing folding angle, comprising a mounting portion, one side of the mounting portion is a clamping portion for connecting and fixing with a wing folding rotating shaft, and the other side is a fixing plate, an encoder is installed on the side of the fixing plate away from the mounting portion, a measuring axis of the encoder passes through the fixing plate and is located on the side of the fixing plate close to the mounting portion, a connecting arm is fixedly sleeved on the measuring axis of the encoder, an adjusting plate is connected to the end of the connecting arm away from the encoder, and a wing connecting plate that fits with the wing surface of the movable wing is provided on the adjusting plate. After installation, the present invention ensures that the wing connecting plate fits with the wing surface, so that the wing drives the wing connecting plate to rotate during the folding process, and the wing rotating plate drives the measuring axis of the encoder to rotate through the connecting arm, thereby achieving the purpose of accurately measuring the wing folding angle through the encoder, and facilitating the subsequent dynamic monitoring of the wing folding.

Description

Technical Field

[0001] The invention belongs to the technical field of wings, and in particular relates to a device for measuring the folding angle of a wing. Background Art

[0002] At present, large UAVs or fixed-wing aircraft have very long wings designed for their flight needs, and they occupy a large area when parked on ships. Therefore, large fixed-wing aircraft or long-wingspan UAVs parked on ships need to fold their wings after docking. The wings need to be folded accurately to the corresponding workstations before they can be locked and fixed. If there is an error in the wing folding angle, it will cause the wing folding to get stuck or the wing locking to fail.

[0003] The wing folding process of existing large fixed-wing aircraft or long-wingspan drones is achieved by the movement of the actuator on the wing under the action of hydraulic pressure. The folding angle of the wing is currently calculated based on the movement and extension of the actuator and the installation position. The extension of the actuator is indirectly obtained based on the hydraulic pressure of the hydraulic system, not directly obtained data, so it cannot directly reflect the actual data of the wing. Therefore, the wing folding angle data obtained by conversion is an approximate value rather than an accurate value. Judging the wing folding situation by the approximate value of the wing folding angle will result in errors in the judgment of the wing folding angle, resulting in failure or jamming of the wing folding. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a device for measuring the wing folding angle in view of the above-mentioned deficiencies in the prior art, which can accurately obtain the folding angle of the wing during the wing folding process and realize dynamic monitoring of the wing folding.

[0005] The technical solution adopted in the present invention is: a device for measuring the wing folding angle, comprising a mounting portion, one side of the mounting portion is a clamping portion for connecting and fixing with the wing folding rotation axis, and the other side is a fixing plate, an encoder is installed on the side of the fixing plate away from the mounting portion, the measuring axis of the encoder passes through the fixing plate and is located on the side of the fixing plate close to the mounting portion, a connecting arm is fixedly sleeved on the measuring axis of the encoder, an end of the connecting arm away from the encoder is connected to an adjusting plate, and the adjusting plate is provided with a wing surface connecting plate that fits with the wing surface of the movable wing.

[0006] Preferably, the clamping portion of the mounting portion matches the locking nut of the wing folding rotation axis, the clamping portion is clamped with the locking nut of the wing folding rotation axis, and the fixing plate of the mounting portion is parallel to the clamping direction of the clamping portion.

[0007] Preferably, the connecting arm is composed of multiple connecting rods connected to each other.

[0008] Preferably, connecting holes are formed at both ends of the adjusting plate, and matching adjusting screws are provided at the connecting holes.

[0009] Preferably, an arm connector is installed at the end of the connecting arm away from the encoder, and a plate connector is installed at the end of the wing connecting plate. One end of the adjustment plate is locked and fixed to the connecting arm by an adjusting screw and the arm connector, and the other end of the adjustment plate is locked and fixed to the wing connecting plate by an adjusting screw and the plate connector.

[0010] Preferably, the encoder adopts absolute value encoding.

[0011] The beneficial effects of the present invention are:

[0012] (1) The measuring device is cleverly installed at the wing folding rotation axis by clamping and fixing the mounting portion with the locking nut of the wing folding rotation axis without affecting the normal folding of the wing;

[0013] (2) By providing a plurality of connecting arms bent in a stepped shape, the locking nut of the wing folding rotation axis can be effectively avoided, so that the connecting arm can make a circular motion outside the locking nut;

[0014] (3) The adjustment plate is connected to the connecting arm through the arm connecting member, so that the adjustment plate and the arm connecting member can be rotated by the adjusting screw, that is, the adjustment plate can be rotated relative to the connecting arm; similarly, the adjustment plate is connected to the wing surface connecting plate through the plate connecting member, so that the wing surface connecting plate can be rotated relative to the adjustment plate through the plate connecting member, thereby facilitating the adjustment of the fit between the wing surface connecting plate and the wing surface.

[0015] The present invention ensures the fit between the wing surface connecting plate and the wing surface after installation, so that the wing drives the wing surface connecting plate to rotate during the folding process of the wing, and the wing surface rotating plate drives the measuring shaft of the encoder to rotate through the connecting arm, thereby achieving the purpose of accurately measuring the wing folding angle through the encoder, which is convenient for the subsequent dynamic monitoring of the wing folding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a practical schematic diagram of the present invention.

[0018] In the figure: 1. mounting part; 2. clamping part; 3. fixing plate; 4. encoder; 5. connecting arm; 6. adjusting plate; 7. wing connecting plate; 8. adjusting screw; 9. arm connecting piece; 10. plate connecting piece; 11. rotating shaft; 12. locking nut; 13. wing. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Example

[0021] like Figure 1 and Figure 2 As shown, the measuring device for the folding angle of the wing 13 provided in this embodiment comprises a mounting portion 1, one side of the mounting portion 1 is a clamping portion 2, the clamping portion 2 is a C-shaped groove or a U-shaped groove for clamping, the inner wall of the clamping portion 2 matches the outer wall of the locking nut 12 on the folding rotation axis 11 of the wing 13, the locking nut 12 in this embodiment is a hexagonal nut, the clamping portion 2 is directly clamped on the outer wall of the locking nut 12, and the clamping portion 2 is fixed to the locking nut 12 by screws after clamping; the other side of the mounting portion 1 is a fixing plate 3 parallel to the clamping direction of the clamping portion 2, and the fixing plate 3 is parallel to the side surface of the locking nut 12, the clamping portion 2 and the fixing plate 3 are connected and fixed by an arc plate, and the outer contour and inner contour of the arc plate respectively match the outer contour and inner contour of the clamping portion 2;

[0022] An encoder 4 is installed on the side of the fixing plate 3 away from the clamping portion 2. The measuring axis of the encoder 4 passes through the fixing plate 3 and is located above the arc-shaped plate of the mounting portion 1. The encoder 4 is fixed to the fixing plate 3 by screws. When the clamping portion 2 of the mounting portion 1 is clamped and fixed with the locking nut 12 on the folding and rotating shaft 11 of the wing 13, the optimal position relationship after clamping is that the axis center of the measuring axis of the encoder 4 is coaxial with the axis center of the folding and rotating shaft 11 of the wing 13.

[0023] A fixing block is integrally formed at one end of the connecting arm 5, and a mounting hole matching the measuring axis of the encoder 4 is opened at the center of the fixing block. The fixing block is sleeved on the measuring axis of the encoder 4 and fixed by screws.

[0024] The connecting arm 5 is composed of multiple connecting rods. The present embodiment adopts two connecting rods perpendicular to each other, wherein one connecting rod is parallel to the axis of the locking nut 12, and the other connecting rod perpendicular to the connecting rod has a fixed block and is connected to the measuring axis of the encoder 4 through the fixed block. The connecting rod parallel to the axis of the locking nut 12 is installed at one end away from the fixed block with a fixed arm connecting member 9; the two connecting rods perpendicular to each other of the connecting arm 5 adopted in the present embodiment are the best implementation method. When the wing connecting plate 7 drives the adjusting plate 6 to rotate, the connecting rod of the connecting arm 5 parallel to the axis of the locking nut 12 can rotate around the outer wall of the locking nut 12, so that the connecting arm 5 effectively avoids the locking nut 12 when rotating, and the space area temporarily used by the connecting arm 5 is minimized, thereby making the volume of the entire device smaller, so that after installation, it can more effectively prevent it from affecting the flight of the wing 13;

[0025] The arm connecting member 9 is provided with a connecting hole, which matches the adjusting hole of the adjusting plate 6 and is connected and locked by an adjusting screw 8. When the adjusting screw 8 is in a relaxed state, the adjusting plate 6 can rotate relative to the arm connecting member 9 with the adjusting screw 8 as a fulcrum, and when the adjusting screw 8 is tightened, the adjusting plate 6 is fixed to the arm connecting member 9; an end of the adjusting plate 6 away from the arm connecting member 9 is provided with a plate connecting member 10, and the plate connecting member 10 is provided with a connecting hole matching the adjusting hole, and is also connected and locked by the adjusting screw 8. When the adjusting screw 8 is in a relaxed state, the plate connecting member 10 rotates relative to the adjusting plate 6 with the adjusting screw 8 as a fulcrum, and when the adjusting screw 8 is tightened, the plate connecting member 10 is fixed to the adjusting plate 6, and the plate connecting member 10 is connected to one side of the wing connecting plate 7, and the wing connecting plate 7 is adhered to the surface of the wing 13 by adhesive.

[0026] When in use, firstly clamp the clamping part 2 of the mounting part 1 onto the locking nut 12 of the rotating shaft 11 of the wing 13, and then use special glue to bond the wing surface connecting plate 7 to the surface of the wing 13 to ensure that the wing surface connecting plate 7 and the surface of the wing 13 are fixedly fitted. In this process, the adjusting screw 8 is in a loose state, which is convenient for adjusting the position of the wing surface connecting plate 7, so as to meet the purpose of the wing surface connecting plate 7 fitting the surface of the wing 13. After the wing surface connecting plate 7 and the surface of the wing 13 are fixedly fitted, the locking screw is locked and fixed, and then the clamping part 2 is locked and fixed on the locking nut 12 by screws to complete the installation of the entire device.

[0027] During the folding process of the movable wing 13, since the wing surface connecting plate 7 is in contact with the surface of the movable wing 13, the wing surface connecting plate 7 performs the same folding action as the wing 13. When the wing surface connecting plate 7 is in motion, it will transmit the rotational action to the measuring axis of the encoder 4 through the connecting arm 5 fixed thereto, specifically, the rotational action is transmitted to the fixed block, and the fixed block rotates synchronously with the wing surface connecting plate 7, that is, the fixed block rotates synchronously with the wing 13, and the fixed block is fixedly mounted on the measuring axis of the encoder 4, so the measuring axis of the encoder 4 rotates with the fixed block, and the rotation angle of the fixed block can be measured by the encoder 4, that is, the folding angle of the movable wing 13. After the encoder 4 measures the folding angle of the wing 13, the folding angle data can be read by the control system, and the folding of the movable wing 13 can be dynamically monitored, so as to facilitate the operator to further control the folding of the wing 13 and ensure the correct folding of the wing 13.

[0028] The encoder 4 used in the above embodiment is an absolute value encoder.

[0029] The present invention cleverly installs the device on the locking nut 12 of the rotating shaft 11 of the wing 13, and fits with the surface of the movable wing 13 by setting the wing surface connecting plate 7, which can fit with the bottom surface of the movable wing 13. The rotation of the wing 13 is transmitted to the encoder 4 through the connecting arm 5 through the wing surface connecting plate 7, so as to realize the real-time monitoring of the rotation and folding of the movable wing 13. The device is fixed on the locking nut 12 of the rotating shaft 11 of the wing 13, which guarantees the normal use of the wing 13 to the maximum extent, and effectively avoids the influence of the installation of the device on the normal use of the wing 13. Moreover, the device is installed on the locking nut 12 of the rotating shaft 11 of the wing 13, which is close to the position of the wing 13, so that the overall volume of the device is smaller, and after being installed on a large fixed-wing aircraft or a long-wingspan drone, it will not affect its normal use.

[0030] The above embodiment is the optimal embodiment of the present invention, wherein the clamping portion 2 can also adopt an annular sleeve connection, and the multi-section connecting rod method of the connecting arm 5 can be determined according to the specific model. The bending method of the connecting arm 5 only plays the role of effectively avoiding the original parts at the wing 13 and can transmit the rotation of the wing connecting plate 7 to the measuring axis of the encoder 4.

[0031] The above description is only a preferred implementation manner of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be included in the protection scope of the present invention.

Claims

1. A device for measuring wing folding angle, characterized in that: The invention comprises a mounting portion (1), one side of the mounting portion (1) being a clamping portion (2) for connecting and fixing with a folding and rotating shaft (11) of a wing (13), and the other side being a fixing plate (3), the clamping portion (2) of the mounting portion (1) matching with a locking nut (12) of the folding and rotating shaft (11) of the wing (13), the clamping portion (2) being clamped with the locking nut (12) of the folding and rotating shaft (11) of the wing (13), the fixing plate (3) of the mounting portion (1) being parallel to the clamping direction of the clamping portion (2), an encoder (4) being installed on a side of the fixing plate (3) away from the mounting portion (1), the measuring axis of the encoder (4) passing through the fixing plate (3) and being located on the fixing plate (3) near the mounting portion On one side of the movable wing (1), a connecting arm (5) is fixedly sleeved on the measuring shaft of the encoder (4), an arm connecting member (9) is installed at the end of the connecting arm (5) away from the encoder (4), an adjusting plate (6) is connected to the end of the arm connecting member (9) away from the connecting arm (5), a wing surface connecting plate (7) which is in contact with the wing surface of the movable wing (13) is provided on the adjusting plate (6), a plate connecting member (10) is installed at the end of the wing surface connecting plate (7), one end of the adjusting plate (6) is locked and fixed to the connecting arm (5) by means of an adjusting screw (8) and the arm connecting member (9), and the other end of the adjusting plate (6) is locked and fixed to the wing surface connecting plate (7) by means of an adjusting screw (8) and the plate connecting member (10).

2. A wing folding angle measuring device according to claim 1, characterized in that: The connecting arm (5) is composed of a plurality of connecting rods connected to each other.

3. A wing folding angle measuring device according to claim 2, characterized in that: The adjusting plate (6) has connecting holes at both ends, and matching adjusting screws (8) are provided at the connecting holes.

4. A device for measuring wing folding angle according to claim 1, 2 or 3, characterized in that: The encoder (4) is an absolute value encoder.

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