Rudder locking performance test device and method thereof

Abstract

The present disclosure provides a rudder locking performance testing device and a method thereof. The device comprises a base including a bottom and a protrusion perpendicular to the bottom; a rudder shaft fixed to a surface of the bottom, including a torsion element mounting hole and a locking mechanism mounting hole; a locking mechanism arranged in the locking mechanism mounting hole of the rudder shaft; a torsion element arranged in the torsion element mounting hole of the rudder shaft; a rudder surface arranged on the rudder shaft based on the torsion element; a connecting piece for connecting the rudder surface to the bottom, so that the rudder surface is at a preset angle; a hot knife release device fixed to a surface of the protrusion and having a hot knife on both sides of the connecting piece for releasing the connecting piece; a first displacement sensor and a second displacement sensor fixed to a surface of the bottom and arranged on both sides of the rudder shaft for detecting movement information of the locking mechanism.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of testing, in particular to a rudder locking performance testing device and method thereof. BACKGROUND

[0002] In the motion performance test of the locking mechanism of the rudder, the relatively simple method in engineering is to make a hole in the side wall of the rudder shaft with a locking pin installed, and record the movement process of the locking pin by high-speed camera. This method not only destroys the working environment of the locking mechanism, but also makes it difficult to put the high-speed camera equipment and the rudder system into the temperature chamber together to carry out low-temperature performance test. SUMMARY

[0003] The present disclosure provides a rudder locking performance testing method and related equipment to solve the technical problems of destroying the working environment of the locking mechanism and making it difficult to put the high-speed camera equipment and the rudder system into the temperature chamber together to carry out low-temperature performance test during the rudder locking performance test.

[0004] In a first aspect, the present disclosure provides a rudder locking performance testing device, comprising:

[0005] a base comprising a bottom and a protruding portion perpendicular to the bottom;

[0006] a rudder shaft fixed to the surface of the bottom, comprising a torsion element mounting hole and a locking mechanism mounting hole;

[0007] a locking mechanism arranged in the locking mechanism mounting hole of the rudder shaft;

[0008] a torsion element arranged in the torsion element mounting hole of the rudder shaft;

[0009] a rudder surface arranged on the rudder shaft based on the torsion element;

[0010] a connecting piece for connecting the rudder surface to the bottom, so that the rudder surface is at a preset angle;

[0011] a hot knife releasing device fixed to the surface of the protruding portion, and the hot knife is located on both sides of the connecting piece for releasing the connecting piece;

[0012] a first displacement sensor and a second displacement sensor fixed to the surface of the bottom and arranged on both sides of the rudder shaft for detecting the motion information of the locking mechanism.

[0013] In a second aspect, the present disclosure provides a rudder locking performance testing method, comprising:

[0014] putting the rudder locking performance testing device into a temperature chamber with a preset temperature and keeping for a preset time;

[0015] judging whether the temperature of the displacement sensor meets the working requirement;

[0016] When the temperature of the displacement sensor meets the working requirements, the hot knife release device is powered to disconnect the connecting piece;

[0017] After the connecting piece is disconnected, the displacement sensor is used to detect the movement parameters of the locking mechanism to analyze the locking performance.

[0018] From the above, it can be seen that the locking performance test device and the test method of the rudder provided by the present disclosure can carry out research on the influence of different types of lubricating grease on the locking performance without damaging the original working environment of the locking mechanism through the hot knife release device, the high-precision displacement sensor, and the flexible heating sheet. The locking performance at different temperatures can be tested, especially providing a good test means for the locking performance test at low temperature. The high-precision displacement sensor can provide very accurate and fine displacement measurement data to evaluate the performance of the locking mechanism. The hot knife release device can quickly release the rudder surface through the heating mechanism to simulate the deployment performance of the rudder under actual working conditions, realizing a more reliable test process. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present disclosure or the related art, the drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figures 1-2 The schematic diagram of the locking performance test device of the rudder of the embodiment of the present disclosure.

[0021] Figure 3 The schematic diagram of the rudder shaft of the embodiment of the present disclosure.

[0022] Figure 4 The schematic diagram of the locking mechanism of the embodiment of the present disclosure.

[0023] Figure 5 The schematic diagram of the rudder surface of the embodiment of the present disclosure.

[0024] Figure 6 The schematic diagram of the hot knife release device of the embodiment of the present disclosure.

[0025] Figure 7 The schematic flow chart of the installation method of the locking performance test device of the rudder of the embodiment of the present disclosure.

[0026] Figure 8 The schematic flow chart of the locking performance test method of the rudder of the embodiment of the present disclosure. DETAILED DESCRIPTION

[0027] For purposes of the present disclosure, technical and scientific terms can have the following meanings unless indicated otherwise.

[0028] It should be noted that unless otherwise defined, technical and scientific terms used in the present disclosure should have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. The terms "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are used to distinguish different components. The terms "include", "contain", and similar terms mean that the elements or objects before the term encompass the elements or objects listed after the term and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships can also be changed accordingly.

[0029] The air vane is an important part of the aircraft structure, and mainly functions to adjust the attitude of the aircraft. In the storage state of the aircraft, the air vane is generally folded in the barrel. When launched, the air vane is instantaneously released from the constraint, at which time the torsion element drives the vane to unfold and rotate. After the vane surface moves to the specified position, the locking mechanism is released from the constraint, thereby achieving locking of the vane surface. At present, the design research on the dynamic characteristics of the air vane mainly focuses on the performance parameters such as the vane unfolding time and the vane modal. As a key component in the air vane movement mechanism, if the locking mechanism cannot timely lock the vane surface after the vane surface moves to the position, the launch will fail. In the related movement performance test of the locking mechanism, a relatively simple method in engineering is to make a hole in the side wall of the vane shaft installed with a locking pin, and record the movement process of the locking pin by high-speed photography. This method not only destroys the working environment of the locking mechanism, but also makes it difficult to place the high-speed photography equipment together with the vane system into a temperature chamber to carry out low-temperature performance test. Therefore, how to conveniently and accurately test the locking performance of the vane under different conditions of the locking mechanism using different lubricating grease and under different environmental temperatures is a technical problem to be solved.

[0030] Therefore, this disclosure provides a method and related equipment for testing the locking performance of a rudder. By using a hot-blade release device, a high-precision displacement sensor, and a flexible heating element, the original working environment of the locking mechanism is not disrupted, allowing for research on the impact of different types of grease on locking performance. Locking performance can be tested at different temperatures, providing a particularly good experimental method for testing locking performance at low temperatures. The high-precision displacement sensor provides highly accurate and detailed displacement measurement data, thereby evaluating the performance of the locking mechanism. The hot-blade release device can rapidly release the rudder surface through a heating mechanism to simulate the rudder's deployment performance under actual working conditions, achieving a more reliable testing process.

[0031] See Figures 1-2 , Figures 1-2 A schematic diagram of a rudder locking performance testing apparatus according to an embodiment of the present disclosure is shown. Figure 1 In the process, the rudder locking performance testing device 100 may include:

[0032] The base 5 includes a bottom 51 and a protrusion 52 perpendicular to the bottom;

[0033] The rudder shaft 1 is fixed to the surface of the bottom 51, including a torque element mounting hole and a locking mechanism mounting hole;

[0034] A locking mechanism is installed in the locking mechanism mounting hole of the rudder shaft 1;

[0035] Torque element, which is installed in the torque element mounting hole of rudder shaft 1;

[0036] The control surface 2 is mounted on the control shaft 1 based on a torsion element;

[0037] Connector 3 is used to connect the rudder surface 2 to the bottom 51 so that the rudder surface 2 is at a preset angle;

[0038] The hot knife release device 4 is fixed to the surface of the protrusion 52 and positions the hot knife on both sides of the connector 3 for releasing the connector 3;

[0039] The first displacement sensor 6 and the second displacement sensor 7 are fixed to the surface of the bottom 51 and disposed on both sides of the rudder shaft 1, and are used to detect the motion parameters of the locking mechanism.

[0040] In some embodiments, the base 5 may include a convex block 51 having a first thickness, and a protrusion 52 perpendicular to the convex block is provided in the convex region. Further, in some embodiments, the protrusion 52 may be flat and have a second thickness.

[0041] In some embodiments, the rudder shaft 1 includes an upper portion. For example... Figure 3 As shown, Figure 3 A schematic diagram of a rudder shaft according to an embodiment of the present disclosure is shown.Figure 3 In some embodiments, the rudder shaft 1 further comprises a rudder shaft upper part for fixing the rudder 2 to the surface of the top part 52. Specifically, the rudder shaft upper part can be a cylinder. In some embodiments, the rudder shaft 1 can be located between the torsion element mounting holes 11 and the locking mechanism mounting holes 12. For example, located at a position in the middle of the torsion element mounting holes 11 and the locking mechanism mounting holes 12. Further, in some embodiments, the rudder shaft 1, the torsion element mounting holes 11 and the locking mechanism mounting holes 12 can be located on the same straight line. For example, the connection surface of the rudder shaft 1, the torsion element mounting holes 11 and the locking mechanism mounting holes 12 are all circular, and the center points of the three circles are located on a straight line.

[0042] In some embodiments, the locking mechanism comprises a nut 81, a front locking pin 82, a sleeve 83, a rear locking pin 84 and a compression spring. As shown in Figure 4 Figure 4 A schematic diagram of the locking mechanism according to an embodiment of the present disclosure is shown. Figure 4 In some embodiments, the nut 81 is arranged on the front locking pin 82, part of the front locking pin 82, the compression spring and part of the rear locking pin 84 are arranged in the sleeve 83, and the compression spring is located between the front locking pin 82 and the rear locking pin 84.

[0043] In some embodiments, the torsion element can comprise a torsion spring.

[0044] In some embodiments, the rudder 2 comprises a rudder body 2A and two rudder end parts 2B, 2C. As shown in Figure 5 Figure 5 A schematic diagram of the rudder according to an embodiment of the present disclosure is shown. Figure 5 In some embodiments, the rudder end parts 2B, 2C are located at both ends of the rudder body 2A and perpendicular to the rudder body 2A. The thickness of the rudder 2 gradually decreases in the direction from the rudder end parts 2B, 2C to the rudder body 2A, the thickness of the side of the rudder body 2A away from the rudder end parts 2B, 2C is the smallest, and the thickness of the side of the rudder end parts 2B, 2C away from the rudder body 2A is the largest. In some embodiments, the torsion element mounting hole 21, the front locking pin locking hole 22 and the rear locking pin locking hole 23 are arranged on the rudder end parts 2B, 2C in a relative manner, and the positions of the front locking pin locking hole 22 and the rear locking pin locking hole 23 correspond to each other. In some embodiments, the torsion element mounting hole 21 is arranged at a position between the rudder body 2A and the front locking pin locking hole 22 and the rear locking pin locking hole 23.

[0045] In some embodiments, the connecting member 3 can comprise a rope. For example, an aramid laminated rope.

[0046] In some embodiments, the hot knife release device 4 comprises a first hot knife 41, a second hot knife 42 and a hot knife mounting base 42, and the first hot knife 41 and the second hot knife 42 are arranged in a relative manner on the hot knife mounting base 42 with a preset distance therebetween. As shown in Figure 6 Figure 6 ​​​A schematic diagram of a hot knife release device according to an embodiment of the present disclosure is shown. Figure 6 In some embodiments, the mounting base 42 can be an annular cylinder, and the first hot knife 41 and the second hot knife 42 are arranged radially opposite at a preset distance. The preset distance can be greater than the distance of the connecting member 3.

[0047] In some embodiments, the first displacement sensor 6 and the second displacement sensor 7 can be high-precision laser displacement sensors. As shown in Figures 1-2 The first displacement sensor 6 and the second displacement sensor 7 can be connected to the surface of the bottom 51 through a fixed connecting member (for example, a support column). Specifically, the displacement sensors 6, 7 can be symmetrically arranged. In some embodiments, the first displacement sensor 6 and the second displacement sensor 7 are also respectively provided with a heating member for heating the first displacement sensor 6 and the second displacement sensor 7. Specifically, the heating member can be a flexible heating sheet, which is pasted on the side of the first displacement sensor 6 and the second displacement sensor 7. In some embodiments, the first displacement sensor 6 and the second displacement sensor 7 are also respectively provided with a temperature sensor for detecting the actual temperature of the first displacement sensor 6 and the second displacement sensor 7. Specifically, the temperature sensor can also be pasted on the side of the first displacement sensor 6 and the second displacement sensor 7.

[0048] Referring to Figure 7 , Figure 7 A schematic flowchart of a mounting method of a rudder locking performance test device according to an embodiment of the present disclosure is shown. Figure 7 In step S0, the locking mechanism and the rudder surface are mounted.

[0049] First, the sleeve, compression spring, front and rear locking pins, nut and bolt are assembled into the locking mechanism, and then the locking mechanism is fixed in the rudder shaft opening according to the assembly relationship of each component. Second, the torsion element and the rudder surface are installed, and finally the rudder surface is deflected to a specified angle through a rope. In the folded state of the rudder surface, the front and rear locking pins of the locking mechanism are in the locked state, and at this time the spring driving the front and rear locking pins is in the compressed state, providing driving force for the subsequent movement of the locking pins.

[0050] In step S1, a high-precision laser displacement sensor is mounted. Specifically, the height of the first displacement sensor 6 and the second displacement sensor 7 is adjusted so that the laser axis of each is parallel to the axis of the front and rear locking pins. Since the working temperature of the high-precision sensor is generally -10~40℃, if the performance of the locking mechanism at low temperature is to be evaluated, thermal protection work on the high-precision sensor needs to be carried out. The present disclosure chooses to paste a flexible heating sheet and a temperature sensor on the outside of the high-precision laser displacement sensor to monitor and control the working temperature of the sensor in real time.

[0051] In step S2, the hot knife release device is installed. Specifically, the hot knife release device adopts a hot knife cutting aramid fiber laminated rope mode, and the two side hot knives can be reused. After installing the hot knife support seat on the support, the two side hot knives are further fixed on the two sides of the rope.

[0052] According to the embodiments of the present disclosure, the rudder locking performance test method can include:

[0053] The rudder locking performance test device is placed in a temperature chamber set to a preset temperature and maintained for a preset duration.

[0054] It is determined whether the temperature of the displacement sensor meets the working requirements.

[0055] When the temperature of the displacement sensor meets the working requirements, the hot knife release device is powered on to disconnect the connecting piece.

[0056] After the connecting piece is disconnected, the displacement sensor is used to detect the motion parameters of the locking mechanism to analyze the locking performance.

[0057] The motion parameters can include at least one of the front and rear locking pin locking time, locking distance, and locking pin motion characteristics during the locking process.

[0058] Specifically, referring to Figure 8 , the rudder locking performance test method 800 can further include the following steps.

[0059] In step S810, the displacement sensor is debugged.

[0060] Before placing the entire test equipment into the temperature chamber, the high-precision laser displacement sensor is debugged to ensure its reliable operation and stable test data.

[0061] In step S820, the rudder locking performance test device is placed in a temperature chamber set to a preset temperature and maintained for a preset duration.

[0062] The entire test device is placed in the temperature chamber, and the temperature is set to a certain low temperature condition (for example, -30°C). After reaching the set temperature, it is maintained for a certain time (for example, 1 hour) to ensure that the entire mechanism is consistent with the temperature chamber environment. The flexible heating sheet outside the high-precision laser sensor continuously works during the temperature chamber cooling and insulation process to ensure that the sensor can work under appropriate environmental temperature conditions.

[0063] In step S830, the high-precision laser displacement sensor measures the distance.

[0064] The high-precision laser displacement sensor is powered on and works, and records real-time data.

[0065] In step S830, the hot knife release device is powered on.

[0066] Wherein, after the hot knife release device is powered on, the rope is quickly fused, the rudder surface is unfolded under the driving of the torsion element, when moving to a certain angle, the rudder surface will cut the nut of the fixed locking pin, the front and rear locking pins are released from the constraint, the compression spring in the sleeve drives the front and rear locking pins to be quickly inserted into the locking hole in the wing surface, so as to realize the locking of the rudder surface.

[0067] In step S840, data acquisition and processing.

[0068] Wherein, during the locking process, the key parameters such as locking time, locking distance and locking process motion characteristics of the front and rear locking pins are determined by judging the data measured by the laser displacement sensor.

[0069] It can be seen that the present disclosure comprehensively uses various technical means such as hot knife release device, high-precision displacement sensor and flexible heating sheet, realizes accurate testing of the locking performance of the rudder at low temperature, and realizes a more reliable testing process. The test method is scientific and reasonable, and the test data is reliable. In addition, the rudder locking performance testing device according to the present disclosure is simple in composition, the hot knife and displacement testing sensor selected are mature industrial products, which ensures that the whole equipment is stable and reliable in the working process, and greatly saves the test design and procurement funds. Moreover, it also standardizes the test steps, test process, data processing and other aspects, and provides scientific and reasonable test basis for the performance test of the rudder locking mechanism. The rudder locking performance testing device and method based on the embodiment of the present disclosure can test the locking performance at different temperatures, especially providing a good test means for the locking performance test at low temperature. The high-precision displacement sensor can provide very accurate and fine displacement measurement data, so as to evaluate the performance of the locking mechanism. The hot knife release device can quickly release the rudder surface through the heating mechanism, so as to simulate the unfolding performance of the rudder under actual working conditions. It can realize not to destroy the original working environment of the locking mechanism, and can carry out research on the locking performance of different types of lubricating grease.

[0070] It should be understood by those skilled in the art that the above discussion of any embodiment is only exemplary and is not intended to limit the scope of the present disclosure (including claims) to these examples; under the idea of the present disclosure, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the embodiments of the present disclosure as described above. In order to be brief, they are not provided in details.

[0071] Additionally, to simplify the description and discussion, and so as not to obscure the understanding of the embodiments of the disclosure, the well-known power / ground connections of the integrated circuits (ICs) and other components can or can not be shown in the provided figures. Furthermore, the apparatus can be shown in block diagram form in order to simplify and advance the description of such embodiments and also to highlight the fact that the details regarding how the apparatus is implemented, e.g., in terms of its working details, are highly dependent on the platform within which the embodiments of the disclosure are to be implemented (i.e., these details should be well within the understanding of one of ordinary skill in the art). In situations where detailed circuitry is set forth in order to describe the exemplary embodiments of the disclosure, it should be understood that the disclosure can be practiced with the full understanding and

[0072] Although the present disclosure has been described in connection with certain embodiments, numerous modifications and alterations mentioned above are readily apparent to those of ordinary skill in the art and it is intended to encompass all such modifications and alterations. Other embodiments will be apparent to those of ordinary skill in the art from consideration of the specification and practice of the embodiments of the present disclosure as set forth above. For example, other memory architectures (e.g., dynamic RAM (DRAM)) can use the embodiments discussed.

[0073] It is intended that the embodiments of the present disclosure cover all such modifications and alterations from the disclosure set forth in connection with the above-described embodiments. Accordingly, the disclosure is intended to be illustrative only and not in a limiting sense as numerous other embodiments, being obvious to those of ordinary skill in the art, can be made upon reviewing the above disclosure without departing from the spirit and scope of the present disclosure.

Claims

1. A rudder locking performance testing device, characterized by, The rudder comprises: a base including a bottom and a protrusion perpendicular to the bottom; a rudder shaft fixed to a surface of the bottom, including a torsion element installation hole and a locking mechanism installation hole; a locking mechanism arranged in the locking mechanism installation hole of the rudder shaft; a torsion element arranged in the torsion element installation hole of the rudder shaft; a rudder surface arranged on the rudder shaft based on the torsion element; a connecting piece for connecting the rudder surface to the bottom, so that the rudder surface is at a preset angle; a hot knife release device fixed to a surface of the protrusion and located on both sides of the connecting piece, for releasing the connecting piece; a first displacement sensor and a second displacement sensor fixed to a surface of the bottom and arranged on both sides of the rudder shaft, for detecting movement information of the locking mechanism; wherein the locking mechanism comprises a nut, a front locking pin, a sleeve, a rear locking pin and a compression spring, wherein the nut is arranged on the front locking pin, part of the front locking pin, the compression spring and part of the rear locking pin are arranged in the sleeve, and the compression spring is located between the front locking pin and the rear locking pin; the hot knife release device comprises a first hot knife, a second hot knife and a hot knife installation base, and the first hot knife and the second hot knife are oppositely arranged on the hot knife installation base with a preset distance therebetween.

2. The apparatus of claim 1, wherein, The first displacement sensor and the second displacement sensor are further respectively provided with a heating element for heating the first displacement sensor and the second displacement sensor.

3. The apparatus of claim 1, wherein, The first displacement sensor and the second displacement sensor are further respectively provided with a temperature sensor for detecting the actual temperature of the first displacement sensor and the second displacement sensor.

4. The apparatus of claim 1, wherein, The torsion element comprises a torsion spring.

5. The apparatus of claim 1, wherein, The rudder shaft is located between the first displacement sensor and the second displacement sensor.

6. The apparatus of claim 1, wherein, The connecting piece comprises a rope.

7. The apparatus of claim 1, wherein, The first displacement sensor and the second displacement sensor are laser displacement sensors.

8. A method of testing the locking performance of a rudder, characterized in that A locking performance test device for the rudder of any one of claims 1-7, the method comprising: placing the locking performance test device of the rudder into a temperature box with a preset temperature and maintaining for a preset time; determining whether the temperature of the first displacement sensor and the second displacement sensor meets the working requirements; when the temperature of the first displacement sensor and the second displacement sensor meets the working requirements, powering the hot knife release device to disconnect the connecting piece; after the connecting piece is disconnected, using the first displacement sensor and the second displacement sensor to detect the movement parameters of the locking mechanism to analyze the locking performance.

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