Folding wing unfolding time testing device

Abstract

The utility model discloses a device for testing the unfolding time of a folding wing. The device comprises a clamp, a locking mechanism, a first reflective laser sensor, a second reflective laser sensor and a central processing unit, wherein the clamp is used for fixing the folding wing, the locking mechanism is used for keeping the folding state of the folding wing, and the central processing unit is used for receiving signals of the first reflection type laser sensor and the second reflection type laser sensor; the locking mechanism comprises a release blocking assembly, a connecting rod, a ratchet wheel and pawl assembly and a fixing plate. The ratchet-pawl assembly is rotationally connected with the fixing plate, the connecting rod is connected with the ratchet-pawl assembly, and the ratchet-pawl assembly is used for determining the rotating angle of the connecting rod; the release blocking assembly is connected with the connecting rod and used for blocking or releasing the folded folding wing. In the whole testing process, all the components work orderly and cooperatively, errors caused by human factors or instability of the device are reduced, it is ensured that the testing result is real and reliable, and repeatability is good.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft technology, specifically a folding wing deployment time test device. Background Technology

[0002] In aerospace and many other fields, folding wings are increasingly widely used. Folding wings are characterized by their foldable and retractable design, saving space during launch and transportation, while readily deploying for use when needed. Deployment time is a critical performance indicator, affecting the entire equipment system's ability to operate as planned. Therefore, the need for accurate measurement of folding wing deployment time is becoming increasingly prominent. Whether it's the folding structure of an aircraft wing or some special-purpose folding wing devices, reliable testing methods are required to ensure that their deployment time meets design requirements, which has spurred the continuous development and improvement of related testing technologies.

[0003] However, current technologies for testing the deployment time of folding wings have many shortcomings. Some testing devices have simple structural designs and lack effective fixation and state control mechanisms. For example, it is difficult to stably maintain the folded state of the wing before testing, resulting in deviations from the initial test state. Moreover, during the testing process, time is often manually observed and recorded using high-speed cameras, or the coordination between components is poor, making it easy for errors to be introduced due to human factors or instability of the device itself. This makes it difficult to guarantee the authenticity and repeatability of the test results, failing to meet the requirements of high-precision testing, and thus creating an urgent need for more reliable testing devices.

[0004] Patent application CN202320669403.X discloses a missile folding wing deployment time testing device, which calculates the folding wing deployment time by measuring the time difference between reflective laser sensor I and reflective laser sensor II. This testing device has the advantage of accurate detection structure; however, its fixing structure has poor fixation, making it difficult to guarantee the authenticity and repeatability of the test results, and thus failing to meet the requirements of high-precision testing. Utility Model Content

[0005] The purpose of this invention is to provide a folding wing deployment time testing device to solve the following technical problems mentioned in the background art:

[0006] The components in the existing unfolding time testing mechanism have poor coordination and are prone to errors due to human factors and instability of the device itself, making it difficult to guarantee the authenticity and repeatability of the test results.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A folding wing deployment time testing device includes a clamp, a locking mechanism, a first reflective laser sensor, a second reflective laser sensor, and a central processing unit. The clamp is used to fix the folding wing, the locking mechanism is used to maintain the folded state of the folding wing, the first reflective laser sensor is used to detect the position of the folded wing after folding, the second reflective laser sensor is used to detect the position of the folded wing after temporary opening, and the central processing unit is used to receive signals from the first and second reflective laser sensors. The locking mechanism includes a release blocking assembly, a connecting rod, a ratchet and pawl assembly, and a fixing plate. The ratchet and pawl assembly is rotatably connected to the fixing plate, the connecting rod is connected to the ratchet and pawl assembly, and the ratchet and pawl assembly is used to determine the rotation angle of the connecting rod. The release blocking assembly is connected to the connecting rod and is used to block or release the folded wing.

[0009] Furthermore, the fixture is a bench vise.

[0010] Furthermore, the first reflective laser sensor is connected to the release blocking assembly; the second reflective laser sensor is disposed on one side of the clamp.

[0011] Furthermore, the ratchet and pawl assembly includes a mounting cylinder, a pawl, a first spring, and a ratchet; wherein, the ratchet is rotatably connected to the fixed plate, the mounting cylinder is fixedly connected to the fixed plate, the top side of the pawl is movably connected inside the mounting cylinder, the bottom side of the pawl is engaged with the ratchet, and the first spring is disposed inside the mounting cylinder, with both ends of the first spring connected to the pawl and the mounting cylinder.

[0012] Furthermore, a pull rod is fixed to one side of the top of the pawl, and the pull rod penetrates the top of the mounting cylinder and is fixed to a pull ring.

[0013] Furthermore, a rotating head is rotatably connected to the fixed plate, and a snap-fit ​​connector is fixed to one side of the ratchet, engaging with the rotating head; the ratchet and pawl assembly is rotatably connected to the fixed plate via the snap-fit ​​connector and the rotating head.

[0014] Furthermore, a connector is fixed to one side of the ratchet, and the connecting rod is detachably connected to the connector; the connecting rod is connected to the ratchet pawl assembly through the connector.

[0015] Furthermore, the blocking and releasing assembly includes a stop bar, a fixed cylinder, a second spring, a limiting head, a limiting plate, and a limiting pin; wherein, the fixed cylinder is connected to the connecting rod, one side of the stop bar is movably inserted into the fixed cylinder, the second spring is disposed inside the fixed cylinder, and both ends of the second spring are respectively connected to the stop bar and the fixed cylinder; one end of the stop bar penetrates the fixed cylinder and is fixedly connected to the limiting head, the limiting head is provided with a first insertion hole, the limiting plate is fixedly connected to the fixed cylinder, the limiting plate is provided with a second insertion hole, and the first insertion hole and the second insertion hole are inserted with limiting pins.

[0016] Furthermore, the fixed cylinder and the connecting rod are detachably connected.

[0017] Furthermore, the central processing unit is connected to a display module, which is used to display the time taken for the folding wings to unfold.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention ensures the stable and reliable folding state of the folding wing before testing through the fixing action of the clamp and the cooperation of components such as the ratchet and pawl assembly in the locking mechanism. During testing, the state of the folding wing is controlled by releasing the blocking component, and the unfolding time of the folding wing can be accurately detected by the first reflective laser sensor, the second reflective laser sensor, and the central processing unit. At the same time, the orderly and coordinated work of each component in the entire testing process reduces errors caused by human factors or instability of the device itself, ensuring that the test results are true, reliable, and highly repeatable.

[0020] This figure description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a partial structural schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the blocking and releasing component of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the ratchet and pawl assembly of this utility model.

[0025] The markings in the diagram are: 1-First reflective laser sensor, 2-Folding wing, 3-Second reflective laser sensor, 4-Clamp, 5-Locking mechanism, 6-Fixing plate, 7-Rotating head, 8-Ratchet and pawl assembly, 9-Connecting head, 10-Connecting rod, 11-Blocking release assembly, 12-Stop bar, 13-Fixing cylinder, 14-Limiting head, 15-Limiting plate, 16-Limiting pin, 17-Second spring, 18-Pull rod, 19-Mounting cylinder, 20-Ratchet, 21-Pawl, 22-First spring, 23-Pull ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example:

[0028] A folding wing deployment time testing device includes a clamp 4, a locking mechanism 5, a first reflective laser sensor 1, a second reflective laser sensor 3, and a central processing unit. The clamp 4 is used to fix the folding wing 2, the locking mechanism 5 is used to maintain the folded state of the folding wing 2, the first reflective laser sensor 1 is used to detect the position of the folded wing 2, the second reflective laser sensor 3 is used to detect the position of the folded wing 2 after it is temporarily opened, and the central processing unit is used to receive signals from the first reflective laser sensor 1 and the second reflective laser sensor 3. The locking mechanism 5 includes a release blocking assembly, a connecting rod 10, a ratchet and pawl assembly 8, and a fixing plate 6. The ratchet and pawl assembly 8 is rotatably connected to the fixing plate 6, the connecting rod 10 is connected to the ratchet and pawl assembly 8, and the ratchet and pawl assembly 8 is used to determine the rotation angle of the connecting rod 10. The release blocking assembly is connected to the connecting rod 10 and is used to block or release the folded wing 2.

[0029] The clamp 4 securely holds the folding wing 2, ensuring it remains in a stable initial state during testing. The first reflective laser sensor 1 and the second reflective laser sensor 3 detect the positions of the folded and unfolded folding wings 2, respectively. By accurately sensing the spatial position of the folding wing 2 in different states, crucial data is provided to the central processing unit (CPU) to determine whether the folding wing 2 has begun to unfold and whether it has completed unfolding, thus enabling precise measurement of the unfolding time. The CPU receives signals from the two laser sensors and analyzes these signals according to a preset program and algorithm to ultimately determine the accurate unfolding time of the folding wing 2.

[0030] Specifically, in use, the folding wing 2 is first placed on the clamp 4 and securely fixed by the clamp 4 to ensure accurate positioning and prevent wobbling. Then, the release blocking component in the locking mechanism 5 blocks the folded wing 2, while the ratchet and pawl assembly 8 determines the rotation angle of the connecting rod 10 to maintain the folded state of the wing 2, putting the entire device in the initial state ready for testing. In this state, the first reflective laser sensor 1 continuously detects the position of the folding wing 2 when folded and transmits the corresponding position signal to the central processing unit. When an unfolding test is required, the release blocking component is activated to release the obstruction of the folding wing 2, and the folding wing 2 begins to unfold under its own elasticity or other unfolding force. During the unfolding process of the folding wing 2, the first reflective laser sensor 1 first detects the signal of the folding wing 2 leaving, and then the second reflective laser sensor 3 monitors its position change in real time. Once the folding wing 2 reaches the set unfolded position, the second reflective laser sensor 3 detects the signal of the folding wing 2 arriving. The time difference between the two signals is the unfolding time of the folding wing 2. After receiving signals from the first reflective laser sensor 1 and the second reflective laser sensor 3, the central processing unit calculates the time it takes for the folding wing 2 to unfold based on the time difference between the two signals received, using its internal timing and calculation functions.

[0031] In this invention, the fixing function of the clamp 4 and the cooperation of components such as the ratchet and pawl assembly 8 in the locking mechanism 5 ensure that the folding wing 2 is stable and reliable in the folded state before the test. At the same time, the orderly and coordinated work of each component in the entire test process reduces the error caused by human factors or the instability of the device itself, ensuring that the test results are true, reliable and have good repeatability.

[0032] In a preferred embodiment, the clamp 4 is a bench vise. As a clamp 4, the bench vise can clamp and fix the folding wing 2 with its adjustable jaws, ensuring that the folding wing 2 remains stable during the test, providing a reliable basis for subsequent accurate testing of the folding wing 2's unfolding time, and avoiding the impact of the test results on the folding wing 2's displacement or other factors.

[0033] In a preferred embodiment, a first reflective laser sensor 1 is connected to a release blocking assembly; a second reflective laser sensor 3 is disposed on one side of the clamp 4. The connection of the first reflective laser sensor 1 to the release blocking assembly facilitates the immediate detection of the initial position change of the folding wing 2 upon release, accurately capturing the deployment start point; the disposal of the second reflective laser sensor 3 on one side of the clamp 4 effectively detects the position reached by the folding wing 2 after deployment. The combination of the two facilitates accurate measurement of the deployment time of the folding wing 2.

[0034] In a preferred embodiment, the ratchet and pawl assembly 8 includes a mounting cylinder 19, a pawl 21, a first spring 22, and a ratchet 20. The ratchet 20 is rotatably connected to the fixing plate 6, the mounting cylinder 19 is fixedly connected to the fixing plate 6, the top side of the pawl 21 is movably connected inside the mounting cylinder 19, and the bottom side of the pawl 21 engages with the ratchet 20. The first spring 22 is disposed inside the mounting cylinder 19, with both ends connected to the pawl 21 and the mounting cylinder 19. The ratchet and pawl assembly 8 restricts the rotation of the ratchet 20 through the engagement of the pawl 21 and the ratchet 20, and uses the elastic force provided by the first spring 22 to maintain the effective connection between the pawl 21 and the ratchet 20. This precisely limits the rotation angle of the connecting rod 10, ensuring that the locking mechanism 5 stably maintains the folded state of the folding wing 2.

[0035] In a preferred embodiment, a pull rod 18 is also fixedly connected to one side of the top of the pawl 21. The pull rod 18 penetrates the top of the mounting cylinder 19 and is fixedly connected to a pull ring 23. The pull rod 18 is fixedly connected to the pull ring 23 and penetrates the mounting cylinder 19 to connect with the pawl 21, which allows the operator to easily release the ratchet and pawl assembly 8 from the connecting rod 10 by pulling the pull ring 23, thereby resetting the position of the pull rod 18 and the blocking release assembly 11.

[0036] In a preferred embodiment, a rotating head 7 is rotatably connected to the fixed plate 6, and a snap-fit ​​connector is fixedly connected to one side of the ratchet 20, engaging with the rotating head 7; the ratchet and pawl assembly 8 is rotatably connected to the fixed plate 6 via the snap-fit ​​connector and the rotating head 7. The engagement of the snap-fit ​​connector with the rotating head 7 achieves the rotatable connection between the ratchet and pawl assembly 8 and the fixed plate 6, ensuring both flexible rotation of the ratchet and pawl assembly 8 relative to the fixed plate 6 and a stable connection.

[0037] In a preferred embodiment, a connector 9 is fixedly attached to one side of the ratchet 20, and a connecting rod 10 is detachably connected to the connector 9; the connecting rod 10 is connected to the ratchet pawl assembly 8 via the connector 9. The detachable connection of the connecting rod 10 to the connector 9 on the ratchet 20 facilitates installation and disassembly.

[0038] In a preferred embodiment, the blocking release assembly 11 includes a stop bar 12, a fixed cylinder 13, a second spring 17, a limiting head 14, a limiting plate 15, and a limiting pin 16; wherein, the fixed cylinder 13 is connected to the connecting rod 10, one side of the stop bar 12 is movably inserted into the fixed cylinder 13, the second spring 17 is disposed inside the fixed cylinder 13, and both ends of the second spring 17 are respectively connected to the stop bar 12 and the fixed cylinder 13; one end of the stop bar 12 penetrates the fixed cylinder 13 and is fixedly connected to the limiting head 14, the limiting head 14 is provided with a first insertion hole, the limiting plate 15 is fixedly connected to the fixed cylinder 13, the limiting plate 15 is provided with a second insertion hole, and the limiting pin 16 is inserted into the first insertion hole and the second insertion hole.

[0039] In a preferred embodiment, the fixed cylinder 13 is detachably connected to the connecting rod 10. This facilitates the individual installation, removal, maintenance, or replacement of the blocking release assembly 11.

[0040] In a preferred embodiment, the central processing unit is connected to a display module, which displays the time taken for the folding wing 2 to unfold. The display module can intuitively show the unfolding time of the folding wing 2 calculated by the central processing unit, making it convenient for testers to quickly and clearly read the test results.

[0041] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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 limitations on this utility model.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A folded wing deployment time testing apparatus, characterized by: The device comprises a clamp (4), a locking mechanism (5), a first reflective laser sensor (1), a second reflective laser sensor (3) and a central processing unit; wherein the clamp (4) is used for fixing the folding wing (2), the locking mechanism (5) is used for keeping the folding state of the folding wing (2), the first reflective laser sensor (1) is used for detecting the position of the folded folding wing (2), the second reflective laser sensor (3) is used for detecting the position of the unfolded folding wing (2), and the central processing unit is used for receiving the signals of the first reflective laser sensor (1) and the second reflective laser sensor (3). The locking mechanism (5) comprises a release blocking component, a connecting rod (10), a ratchet pawl assembly (8) and a fixed plate (6); the ratchet pawl assembly (8) is rotationally connected with the fixed plate (6), the connecting rod (10) is connected with the ratchet pawl assembly (8), and the ratchet pawl assembly (8) is used for determining the rotation angle of the connecting rod (10); the release blocking component is connected with the connecting rod (10), and the release blocking component is used for blocking or releasing the folded folding wing (2).

2. A folded wing deployment time testing apparatus according to claim 1, wherein: The clamp (4) is a bench clamp.

3. A folded wing deployment time testing apparatus according to claim 1, wherein: The first reflective laser sensor (1) is connected with the release blocking component; and the second reflective laser sensor (3) is arranged on one side of the clamp (4).

4. The folded wing deployment time testing apparatus of claim 1, wherein: The ratchet pawl assembly (8) comprises a mounting cylinder (19), a pawl (21), a first spring (22) and a ratchet wheel (20); wherein the ratchet wheel (20) is rotationally connected with the fixed plate (6), the mounting cylinder (19) is fixedly connected with the fixed plate (6), the pawl (21) is movably connected at the top side of the mounting cylinder (19), the pawl (21) is movably connected at the bottom side with the ratchet wheel (20), the first spring (22) is arranged in the mounting cylinder (19), and the two ends of the first spring (22) are connected with the pawl (21) and the mounting cylinder (19).

5. A folded wing deployment time testing apparatus according to claim 4, wherein: The pawl (21) is further fixedly connected with a pull rod (18) at the top side, the pull rod (18) penetrates the top of the mounting cylinder (19) and is fixedly connected with a pull ring (23).

6. A folded wing deployment time testing apparatus according to claim 4, wherein: The fixed plate (6) is rotationally connected with a rotating head (7), one side of the ratchet wheel (20) is fixedly connected with a clamping head, the clamping head is clamped with the rotating head (7); the ratchet pawl assembly (8) is rotationally connected with the fixed plate (6) through the clamping head and the rotating head (7).

7. A folded wing deployment time testing apparatus according to claim 4, wherein: One side of the ratchet wheel (20) is fixedly connected with a connecting head (9), the connecting rod (10) is detachably connected with the connecting head (9); the connecting rod (10) is connected with the ratchet pawl assembly (8) through the connecting head (9). One side of the ratchet wheel (20) is fixedly connected with a connecting head (9), the connecting rod (10) is detachably connected with the connecting head (9); the connecting rod (10) is connected with the ratchet pawl assembly (8) through the connecting head (9).

8. The folded wing deployment time testing apparatus of claim 1, wherein: The blocking release assembly (11) comprises a blocking rod (12), a fixing cylinder (13), a second spring (17), a limiting head (14), a limiting plate (15) and a limiting pin (16); the fixing cylinder (13) is connected with the connecting rod (10), the blocking rod (12) is movably inserted into the fixing cylinder (13) on one side, the second spring (17) is arranged in the fixing cylinder (13), and the two ends of the second spring (17) are connected with the blocking rod (12) and the fixing cylinder (13) respectively; one end of the blocking rod (12) penetrates through the fixing cylinder (13) and is fixedly connected with the limiting head (14), the limiting head (14) is provided with a first insertion hole, the limiting plate (15) is fixedly connected with the fixing cylinder (13), the limiting plate (15) is provided with a second insertion hole, and the limiting pin (16) is movably arranged in the first insertion hole and the second insertion hole.

9. A folded wing deployment time testing apparatus according to claim 8, wherein: The fixing cylinder (13) is detachably connected with the connecting rod (10).

10. The folded wing deployment time testing apparatus of claim 1, wherein: The central processing unit is connected with a display module, and the display module is used for displaying the time consumed by the folding wing (2) to be unfolded.

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