Steering gear loading spring calibration device and method

Abstract

The application relates to a rudder loading leaf spring calibration device and method, which comprises a loading leaf spring mounting module and a calibration module comprising a simulation rudder and a calibration driving mechanism, the contact part of the loading leaf spring mounted on the mounting module can be in contact with the rudder blade of the simulation rudder; the calibration driving mechanism is used for driving the rotation of the rudder shaft of the simulation rudder; the simulation rudder is provided with a torque detection mechanism for detecting the torque value of the loaded simulation rudder and an angle detection mechanism for detecting the corresponding deflection angle of the rudder blade when being loaded. The simulation rudder adopted by the application can simulate the actual loading state of the rudder to exert torque on the loading leaf spring, and the torque detection mechanism and the angle detection mechanism are used to detect the exerted torque and the deflection angle of the rudder blade in the torque exerting process in real time, so that the deflection angle-torque corresponding relationship of the loading leaf spring can be quickly and accurately detected, the operation is simple, the operation reliability is high, and the detection precision is much higher than that of the traditional theoretical calculation mode.

Description

Technical Field

[0001] This invention relates to a servo motor loading leaf spring calibration device and a servo motor loading leaf spring calibration method, mainly used for calibrating the torque-angle relationship of the servo motor loading leaf spring. Background Technology

[0002] Servo mechanisms are a crucial component of an aircraft's overall structure, significantly influencing its flight direction and attitude. Servo mechanisms control flight direction and attitude by using guidance signals from target detection mechanisms to control the torque driving the rudder shaft, thereby changing the rudder angle. Therefore, the rudder deflection torque and angle are critical factors determining the servo's reliability. Clearly defining the relationship between rudder deflection angle and applied torque is essential in servo structural design and control; thus, measuring servo deflection angle and torque is a vital indicator in overall aircraft design.

[0003] The measurement of servo torque and deflection angle is mainly achieved through the servo loading device and the servo's own potentiometer. The servo loading device consists of a loading leaf spring and auxiliary structures. When power is supplied to the servo, it provides a deflection torque to the rudder wing, causing the rudder wing to deflect. This deflection, in turn, causes the loading leaf springs on both sides of the rudder wing to deform. Simultaneously, the potentiometer detects the deflection angle of the rudder wing, which is also the deformation angle of the loading leaf spring. If the torque magnitude of the loading leaf spring at different deflection angles is known, the torque magnitude of the rudder wing at the corresponding deflection angle can be deduced, thus detecting the relationship between the servo deflection angle and the deflection torque. Therefore, the accuracy of the deflection angle-torque correspondence of the loading leaf spring itself is crucial for measuring the servo torque and deflection angle.

[0004] Currently, the deflection angle-torque relationship of a loaded leaf spring is mainly obtained through theoretical calculations. The calculation models established by these theoretical calculations are usually idealized and simplified, the calculation process is also quite cumbersome, and the calculation results are not accurate enough. Summary of the Invention

[0005] This invention relates to a servo motor loading leaf spring calibration device and a servo motor loading leaf spring calibration method, which can at least solve some of the defects of the prior art.

[0006] This invention relates to a servo motor loading leaf spring calibration device, comprising:

[0007] Mounting module for mounting loading leaf springs;

[0008] The calibration module includes a simulated rudder and a calibration drive mechanism, wherein...

[0009] The relative positional relationship between the simulated rudder and the mounting module satisfies the following condition: the contact portion of the loading leaf spring installed on the mounting module can contact the rudder wing of the simulated rudder.

[0010] The calibration drive mechanism is connected to the rudder shaft of the simulated rudder and is used to drive the rudder shaft to rotate; the simulated rudder is equipped with a torque detection mechanism and an angle detection mechanism, the torque detection mechanism is used to detect the torque value applied to the simulated rudder, and the angle detection mechanism is used to detect the deflection angle corresponding to the rudder wing when it is loaded.

[0011] As one embodiment, the angle detection mechanism includes a potentiometer, which is connected to the rudder wing and coaxial with the rudder shaft;

[0012] And / or, the angle detection mechanism includes a matching angle detection pointer and an angle indicator disk, the angle detection pointer being mounted on the rudder shaft and the angle indicator disk being arranged next to the simulated rudder.

[0013] As one embodiment, the torque detection mechanism includes a torsion sensor, one end of which is connected to the rudder shaft via a coupling, and the other end of which is connected to the output end of the calibration drive mechanism via a coupling.

[0014] As one embodiment, the installation module includes a mounting base, a longitudinal adjustment mechanism, and a lateral adjustment mechanism. The mounting base is provided with a loading leaf spring mounting position. The longitudinal adjustment mechanism is used to adjust the position of the mounting base in the longitudinal direction, and the lateral adjustment mechanism is used to adjust the position of the mounting base in the lateral direction. In the initial installation state, the length direction of the loading leaf spring is parallel to the longitudinal direction.

[0015] As one implementation method, the longitudinal adjustment mechanism and the transverse adjustment mechanism are combined to form a two-dimensional sliding table structure.

[0016] As one implementation, the longitudinal adjustment mechanism is equipped with a first adjustment amount detection unit for detecting the longitudinal adjustment amount, and the lateral adjustment mechanism is equipped with a second adjustment amount detection unit for detecting the lateral adjustment amount.

[0017] As one embodiment, the calibration drive mechanism includes a calibration drive unit and a worm gear transmission mechanism connected to the calibration drive unit, wherein the worm gear transmission mechanism is connected in series with the rudder shaft.

[0018] As one embodiment, the rudder shaft is provided with an insertion slot, and the rudder wing is detachably inserted into the insertion slot.

[0019] The present invention also relates to a servo motor loading leaf spring calibration method, which is implemented based on the above-mentioned servo motor loading leaf spring calibration device;

[0020] The method includes:

[0021] a. Install the loading leaf spring onto the mounting module, so that the contact roller of the first leaf spring to be calibrated contacts the rudder wing; drive the rudder wing to deflect in the corresponding direction through the calibration drive mechanism, obtain the detection data of the torque detection mechanism and the angle detection mechanism, and obtain the torque-angle relationship dataset of the first leaf spring to be calibrated.

[0022] b. Make the contact roller of the second reed to be calibrated, which is loaded with leaf spring, contact the rudder wing; drive the rudder wing to reverse through the calibration drive mechanism, obtain the detection data of the torque detection mechanism and the angle detection mechanism, and obtain the torque-angle relationship dataset of the second reed to be calibrated.

[0023] Furthermore, the method also includes:

[0024] Adjust the longitudinal position of the loading spring mounting position of the mounting module to achieve spring calibration operations with different length specifications and / or different pressure core positions;

[0025] And / or, adjust the position of the loading leaf spring mounting position of the mounting module in the lateral direction so that the same rudder can be compatible with loading leaf springs with different leaf spring pitches, and / or adjust the contact tightness between the contact roller and the rudder.

[0026] In the initial installation state, the length direction of the loading leaf spring is parallel to the longitudinal direction.

[0027] The present invention has at least the following beneficial effects:

[0028] The present invention uses a simulated rudder to simulate the actual loading state of the servo motor to apply torque to the loading leaf spring. Furthermore, it employs a torque detection mechanism and an angle detection mechanism to detect the applied torque and the rudder deflection angle during the torque application process in real time. This allows for the rapid and accurate detection of the deflection angle-torque correspondence of the loading leaf spring. The method is simple to operate, highly reliable, and its detection accuracy is far superior to traditional theoretical calculation methods. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the servo motor loading leaf spring calibration device provided in an embodiment of the present invention;

[0031] Figure 2 for Figure 1A schematic diagram of the loading leaf spring in the diagram;

[0032] Figure 3 for Figure 1 A schematic diagram of the calibration module in the diagram;

[0033] Figure 4 for Figure 1 A cross-sectional view of the calibration module in the image;

[0034] Figure 5 for Figure 1 A schematic diagram of the longitudinal adjustment mechanism in the middle;

[0035] Figure 6 for Figure 1 A schematic diagram of the lateral adjustment mechanism in the middle;

[0036] Figure 7 for Figure 1 A schematic diagram of the calibration drive mechanism in the diagram;

[0037] Figure 8 for Figure 1 A cross-sectional view of the calibration drive mechanism. Detailed Implementation

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1

[0040] like Figure 1 This invention provides a servo motor loading leaf spring calibration device, including an installation module and a calibration module 3. The installation module is used to install a loading leaf spring 2. The calibration module 3 includes a simulated rudder 33 and a calibration drive mechanism. The relative positional relationship between the simulated rudder 33 and the installation module satisfies the following: the contact portion of the loading leaf spring 2 installed on the installation module can contact the rudder wing 332 of the simulated rudder 33; the calibration drive mechanism is connected to the rudder shaft 331 of the simulated rudder 33 and is used to drive the rudder shaft 331 to rotate; the simulated rudder 33 is equipped with a torque detection mechanism and an angle detection mechanism. The torque detection mechanism is used to detect the torque value applied to the simulated rudder 33, and the angle detection mechanism is used to detect the deflection angle corresponding to the rudder wing 332 when it is loaded.

[0041] In one embodiment, such as Figure 2The loading leaf spring 2 includes two leaf springs 21, each with a contact roller 22 at its free end. The axis of the contact roller 22 is parallel to the surface of the leaf spring 21. When testing an actual servo motor, the contact roller 22 contacts the actual rudder wing 332. When calibrating the loading leaf spring 2, the contact roller 22 contacts the rudder wing 332 of the simulated rudder 33. Furthermore, the loading leaf spring 2 also includes a loading base on which both leaf springs 21 are mounted. Preferably, both leaf springs 21 are detachably mounted on the loading base, allowing for replacement of different leaf springs 21 without disconnecting the loading base from the mounting module.

[0042] The loading spring 2 is preferably detachably mounted on the mounting module. For example, the loading base described above can be plugged into the mounting module. The plugging and unplugging direction of the loading base is preferably parallel to the plate surface of the spring 21, so as not to cause unnecessary interference to the calibration operation of the spring 21.

[0043] Preferably, the above-mentioned detection module further includes a detection platform 32, on which the simulated rudder 33 is rotatably mounted, and the axis of the rudder shaft 331 is preferably parallel to the vertical; the rudder wing 332 can be mounted on the top of the rudder shaft 331. In one embodiment, such as Figure 3 The rudder shaft 331 is provided with an insertion slot, and the rudder wing 332 is detachably inserted into the insertion slot. Different specifications of rudder wings 332 can be replaced as needed to match the calibration operation of various specifications of loading leaf springs 2, which is convenient, quick and can improve the efficiency of calibration operation. The detachable installation of the rudder wing 332 includes, but is not limited to, locking the rudder wing 332 to the rudder shaft 331 by using positioning pins and set screws.

[0044] In one embodiment, such as Figure 4 The torque detection mechanism includes a torsion sensor 37. One end of the torsion sensor 37 is connected to the rudder shaft 331 via a coupling 38, and the other end of the torsion sensor 37 is connected to the output end of the calibration drive mechanism via a coupling 38. The torsion sensor 37 and the rudder shaft 331 are coaxial. A key connection can be used between the torsion sensor 37 and the coupling 38; a key connection can also be used between the coupling 38 and the rudder shaft 331.

[0045] Optionally, such as Figure 3 and Figure 4 In the above-mentioned scheme with a detection platform 32, the detection platform 32 can be configured as a box-shaped structure, and the torsion sensor 37 can be housed in the inner cavity of the detection platform 32.

[0046] In one embodiment, such as Figure 3 and Figure 4The angle detection mechanism includes a potentiometer 35, which is connected to the rudder wing 332 and coaxial with the rudder shaft 331. Preferably, the rotating end of the potentiometer 35 is detachably connected to the rudder wing 332. For example, a clamping plate 351 with a clamping groove is provided at the rotating end of the potentiometer 35. One end of the rudder wing 332 is connected to the rudder shaft 331, and the other end is inserted into the clamping groove of the clamping plate 351. More preferably, the rudder wing 332 is locked and fixed to the clamping plate 351 by a locking pin or the like. When the rudder wing 332 rotates, the potentiometer 35 rotates accordingly and can detect the deflection angle of the rudder wing 332.

[0047] Preferably, a detection bracket 34 is configured, and the potentiometer 35 is rotatably mounted on the detection bracket 34. A positioning bearing or similar device can be provided on the detection bracket 34 to ensure smooth rotation of the potentiometer 35. Optionally, the potentiometer 35 includes a potentiometer 35 body and a potentiometer 35 mounting plate. The potentiometer 35 body is rotatably mounted on the potentiometer 35 mounting plate. After fixing the potentiometer 35 mounting plate to the detection bracket 34, the installation of the potentiometer 35 is completed. Preferably, the connection between the potentiometer 35 mounting plate and the detection bracket is detachable, facilitating the disassembly, assembly, and maintenance of the potentiometer 35. In the above-described scheme with a clamping plate 351, the clamping plate 351 and the potentiometer 35 body should preferably adopt a separate assembly structure. For example, the clamping plate 351 can be installed from the bottom upwards of the detection bracket 34, and the potentiometer 35 body can be installed from the top downwards of the detection bracket 34. The connection between the clamping plate 351 and the potentiometer 35 body (e.g., screw connection, snap-fit, etc.) is completed during the installation process. In the above-mentioned scheme with a testing platform 32, the testing bracket 34 can be installed on the testing platform 32, either integrally formed or detachably connected; preferably, an L-shaped bracket is used, with its vertical section installed on the testing platform 32 and the potentiometer 35 installed on its horizontal section.

[0048] In another embodiment, such as Figure 3 and Figure 4 The angle detection mechanism includes a cooperating angle detection pointer 361 and an angle indicator disk 362. The angle detection pointer 361 is mounted on the rudder shaft 331, and the angle indicator disk 362 is arranged next to the simulated rudder 33. When the rudder shaft 331 rotates, the angle detection pointer 361 rotates accordingly, and the deflection angle of the rudder 332 can be read from the angle indicator disk 362.

[0049] Preferably, a combination of multiple angle detection methods is used, such as simultaneously setting the potentiometer 35 and the angle detection pointer 361. On the one hand, this can enrich the angle detection data, and the multiple angle detection methods can correct each other, which can significantly improve the detection accuracy and reliability. On the other hand, the combination of sensor detection method and mechanical detection method has high detection reliability. Even if one of the detection methods fails, the angle detection data can still be reliably obtained.

[0050] In the above-described scheme with a detection bracket 34, preferably, the angle indicator 362 is disposed on the horizontal section of the detection bracket 34, and the angle detection pointer 361 passes through the horizontal section of the detection bracket 34 from bottom to top and cooperates with the angle indicator 362. Mounting the angle indicator 362 and the potentiometer 35 on the same detection bracket 34, especially on the same plane, facilitates the operator to simultaneously read two angle detection data.

[0051] Preferably, the aforementioned servo motor loading leaf spring calibration device further includes a controller, which can be a PC or similar device. The torsion sensor 37, potentiometer 35, etc., are electrically connected to the controller, enabling real-time automatic acquisition of the detection results from the torsion sensor 37 and potentiometer 35, and recording of calibration results in any state. Furthermore, a display can be configured, allowing the real-time output of the detection results from the torsion sensor 37 and potentiometer 35, facilitating intuitive and timely access to the detection results by the operator, and enabling better calibration operations.

[0052] In one embodiment, such as Figure 7 and Figure 8 The calibration drive mechanism includes a calibration drive unit and a worm gear transmission mechanism connected to the calibration drive unit. The worm gear transmission mechanism is connected in series with the rudder shaft 331. The calibration drive unit can be driven by automatic equipment such as a motor, or it can be manually driven, for example, by configuring a drive handwheel 31. Preferably, the calibration drive unit can drive the rudder shaft 331 in both forward and reverse directions. One set of equipment can complete the calibration operation of the two springs 21 of the loading spring 2 without additional adjustment of the spring positions, effectively improving the efficiency and effectiveness of the calibration operation.

[0053] The worm gear mechanism provides a self-locking function. After the rudder 332 is driven to a certain position by the drive handwheel 31, the worm gear mechanism will not rotate back due to the reverse driving force on the rudder 332 when the hand is released, thus improving the accuracy of the reading and the safety of use. In addition, the worm gear mechanism has a good labor-saving effect, and only a small force is required to achieve the driving purpose when using the drive handwheel 31.

[0054] The worm gear transmission mechanism is connected in series with the rudder shaft 331, for example, by means of the aforementioned coupling 38 and torsion sensor 37. This allows for direct acquisition of the loading torque value and higher detection accuracy.

[0055] The calibration drive unit can be connected to the worm in the worm gear transmission mechanism. A worm gear box 311 can be provided and installed on the worktable 1. The worm gear 314 in the worm gear transmission mechanism is housed in the worm gear box 311, and the worm 313 passes through the worm gear box 311 and cooperates with the worm gear 314. The worm gear 314 is provided with a worm gear shaft 312, which preferably passes through the worm gear box 311 and is connected to the rudder shaft 331 or the coupling 38. Furthermore, two sets of worm gear bearings are configured for the worm gear shaft 312, and these two sets of worm gear bearings are embedded in the bearing mounting holes of the worm gear box 311. The worm gear shaft bearing retaining ring is installed in the retaining ring mounting groove on the lower end face of the worm gear shaft 312 to axially position the worm gear bearing on the lower end face of the worm gear shaft 312. Optionally, a worm gear bearing cover plate is also configured. This cover plate is installed at the worm gear shaft protrusion position of the worm gear box 311 and presses down on the worm gear bearing on the upper part of the worm gear shaft 312, suppressing the axial movement of the worm gear bearing and the worm gear shaft 312. Further optionally, a viewing window is provided on the side of the worm gear box 311 to facilitate manual maintenance of the equipment's transmission parts. This viewing window can be opened and closed through a viewing window cover plate.

[0056] In one embodiment, the mounting module includes a mounting base 4, which has a loading spring mounting position, onto which the loading spring 21 is mounted. For a structure where the loading base can be plugged into and detached from the mounting module, the loading spring mounting position can be designed as a plug-in slot.

[0057] Furthermore, such as Figure 1The mounting module further includes a longitudinal adjustment mechanism 5 and a lateral adjustment mechanism 6. The longitudinal adjustment mechanism 5 is used to adjust the longitudinal position of the mounting base 4, and the lateral adjustment mechanism 6 is used to adjust the lateral position of the mounting base 4. In the initial installation state, the length direction of the loading leaf spring 2 is parallel to the longitudinal direction. By setting the longitudinal adjustment mechanism 5 and adjusting the longitudinal position of the loading leaf spring mounting position, leaf spring calibration operations with different length specifications and / or different pressure core positions (i.e., the contact point position of the loading leaf spring 2 on the rudder 332, or the distance between the mounting base 4 and the rudder 332) can be achieved. This allows the determination of the corresponding leaf spring length or the position of the leaf spring 21 pressing on the rudder 332 under the required loading torque and deflection angle. Based on this result, the loading leaf spring 2 can be adjusted (for example, by adjusting the installation position of the leaf spring 21 on the loading base, the leaf spring length can be adjusted). This achieves the purpose of loading leaf spring calibration, enabling the loading leaf spring 2 to better meet the requirements of actual servo motor testing. By setting the lateral adjustment mechanism 6, the position of the loading leaf spring mounting position in the lateral direction can be adjusted, so that the same type of rudder 332 can be compatible with calibrating loading leaf springs 2 with different leaf spacing, and / or the contact tightness between the contact roller 22 and the rudder 332 can be adjusted, thereby improving the accuracy of the calibration operation.

[0058] All existing linear drive methods are applicable to this embodiment to achieve longitudinal and lateral adjustment. Preferably, the longitudinal adjustment mechanism 5 and the lateral adjustment mechanism 6 form a two-dimensional slide structure, and the mounting base 4 is mounted on this two-dimensional slide structure.

[0059] Taking the mounting base 4 installed on the longitudinal adjustment mechanism 5 and the longitudinal adjustment mechanism 5 installed on the transverse adjustment mechanism 6 as an example, Figure 1 If the aforementioned servo motor loading leaf spring calibration device includes a worktable 1, then the lateral adjustment mechanism 6 can be installed on the worktable 1.

[0060] In one embodiment, such as Figure 5The longitudinal adjustment mechanism 5 includes a longitudinal adjustment base plate, a longitudinal adjustment seat 51 slidably mounted on the longitudinal adjustment base plate, and a longitudinal screw drive unit 52. Correspondingly, a longitudinal slide rail is provided on the longitudinal adjustment base plate for the longitudinal adjustment seat 51 to slide. The longitudinal screw drive unit 52 includes a longitudinal adjustment screw and a longitudinal adjustment nut. The longitudinal adjustment nut is fixedly connected to the longitudinal adjustment seat 51, and the longitudinal adjustment screw can be rotatably mounted on the longitudinal adjustment base plate via a support plate, etc. The longitudinal adjustment nut is screwed onto the longitudinal adjustment screw, thereby driving the longitudinal adjustment seat 51 to move linearly along the longitudinal adjustment screw. The rotation of the longitudinal adjustment screw can be driven by automatic equipment such as a motor, or it can be manually driven, for example, by configuring a longitudinal adjustment knob 53. Furthermore, the longitudinal adjustment mechanism 5 also includes a longitudinal guide unit 54, which can improve the smoothness and reliability of the longitudinal adjustment seat 51's movement. This longitudinal guide unit 54 can adopt a guide shaft and guide sleeve cooperation method.

[0061] Furthermore, the aforementioned longitudinal adjustment screw adopts a T-type screw, which, in conjunction with the T-type screw nut, can achieve a self-locking positioning effect, ensuring that the loaded leaf spring 2 will not spontaneously move longitudinally during leaf spring calibration, thereby improving the stability and accuracy of calibration.

[0062] In one embodiment, such as Figure 6 The lateral adjustment mechanism 6 includes a lateral adjustment seat 61 and a lateral lead screw drive unit 62. A lateral slide rail is correspondingly provided on the worktable 1 for the lateral adjustment seat 61 to slide. The lateral lead screw drive unit 62 includes a lateral adjustment lead screw and a lateral adjustment nut. The lateral adjustment nut is fixedly connected to the lateral adjustment seat 61, and the lateral adjustment lead screw can be rotatably mounted on the worktable 1 via a support plate or similar means. The lateral adjustment nut is screwed onto the lateral adjustment lead screw, thereby driving the lateral adjustment seat 61 to move linearly along the lateral adjustment lead screw. The rotation of the lateral adjustment lead screw can be driven by automatic equipment such as a motor, or it can be manually driven, for example, by configuring a lateral adjustment knob 63. Similarly, the lateral adjustment lead screw is preferably a T-type lead screw.

[0063] Furthermore, the longitudinal adjustment mechanism 5 is equipped with a first adjustment amount detection unit for detecting the longitudinal adjustment amount, and the lateral adjustment mechanism 6 is equipped with a second adjustment amount detection unit for detecting the lateral adjustment amount. This allows for intuitive and accurate control of the longitudinal and lateral adjustment amounts, improving the calibration accuracy of the loading leaf spring 2. In one embodiment, the first adjustment amount detection unit includes a longitudinal adjustment amount pointer and a longitudinal adjustment amount indicator disk 55, wherein the longitudinal adjustment amount pointer is mounted on the longitudinal adjustment seat 51, and the longitudinal adjustment amount indicator disk 55 is mounted on the longitudinal adjustment base plate. In one embodiment, the second adjustment amount detection unit includes a lateral adjustment amount pointer 64 and a lateral adjustment amount indicator disk, wherein the lateral adjustment amount pointer 64 is mounted on the lateral adjustment seat 61, and the lateral adjustment amount indicator disk can be mounted on the worktable 1.

[0064] Example 2

[0065] This invention provides a servo motor loading leaf spring calibration method, implemented based on the servo motor loading leaf spring calibration device provided in Embodiment 1 above;

[0066] The method includes:

[0067] a. Install the loading leaf spring 2 onto the mounting module, so that the contact roller 22 of the first calibrated leaf spring 21 of the loading leaf spring 2 contacts the rudder 332; drive the rudder 332 to deflect in the corresponding direction through the calibration drive mechanism, obtain the detection data of the torque detection mechanism and the angle detection mechanism, and obtain the torque-angle relationship dataset of the first calibrated leaf spring 21.

[0068] b. Make the contact roller 22 of the second spring 21 to be calibrated of the loading spring 2 contact with the rudder 332; drive the rudder 332 to reverse through the calibration drive mechanism, obtain the detection data of the torque detection mechanism and the angle detection mechanism, and obtain the torque-angle relationship dataset of the second spring 21 to be calibrated.

[0069] After obtaining the aforementioned torque-angle relationship dataset, it can be used as the performance parameters of the corresponding reed 21 for measuring the torque-deflection angle of the aircraft servo. Alternatively, the aforementioned torque-angle relationship dataset can be compared with the existing performance parameters of the loading leaf spring 2. Engineers can then determine the accuracy and reliability of the new test data. If the new test data is reliable, it can be added to the existing torque-angle relationship database of the loading leaf spring 2 or the existing torque-angle relationship database of the loading leaf spring 2 can be corrected.

[0070] Furthermore, the method also includes:

[0071] Adjust the longitudinal position of the loading spring mounting position of the mounting module to achieve spring calibration operations with different length specifications and / or different pressure core positions;

[0072] And / or, adjust the position of the loading leaf spring mounting position of the mounting module in the lateral direction so that the rudder blade 332 of different thicknesses can be compatible with the loading leaf spring 2 with different leaf spacing, and / or adjust the contact tightness between the contact roller 22 and the rudder blade 332;

[0073] In the initial installation state, the length direction of the loading leaf spring 2 is parallel to the longitudinal direction.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A servo motor loading leaf spring calibration device, characterized in that, include: Mounting module for mounting loading leaf springs; The calibration module includes a simulated rudder and a calibration drive mechanism, wherein... The relative positional relationship between the simulated rudder and the mounting module satisfies the following condition: the contact portion of the loading leaf spring installed on the mounting module can contact the rudder wing of the simulated rudder. Specifically, the loading leaf spring includes two leaf springs, and each of the free ends of the two leaf springs is provided with a contact roller. The axis of the contact roller is parallel to the plate surface of the leaf spring. When performing the loading leaf spring calibration operation, the contact roller is used to contact the rudder wing of the simulated rudder. The calibration drive mechanism is connected to the rudder shaft of the simulated rudder and is used to drive the rudder shaft to rotate; the simulated rudder is equipped with a torque detection mechanism and an angle detection mechanism, the torque detection mechanism is used to detect the torque value applied to the simulated rudder, and the angle detection mechanism is used to detect the deflection angle corresponding to the rudder wing when it is loaded; Install the loading leaf spring onto the mounting module so that the contact roller of the leaf spring to be calibrated contacts the rudder wing; The calibration drive mechanism drives the rudder to deflect in the corresponding direction, and the detection data of the torque detection mechanism and the angle detection mechanism are obtained to obtain the torque-angle relationship dataset of the reed to be calibrated.

2. The servo motor loading leaf spring calibration device as described in claim 1, characterized in that: The angle detection mechanism includes a potentiometer, which is connected to the rudder wing and coaxial with the rudder shaft; And / or, the angle detection mechanism includes a matching angle detection pointer and an angle indicator disk, the angle detection pointer being mounted on the rudder shaft and the angle indicator disk being arranged next to the simulated rudder.

3. The servo motor loading leaf spring calibration device as described in claim 1, characterized in that: The torque detection mechanism includes a torsion sensor. One end of the torsion sensor is connected to the rudder shaft via a coupling, and the other end of the torsion sensor is connected to the output end of the calibration drive mechanism via a coupling.

4. The servo motor loading leaf spring calibration device as described in claim 1, characterized in that: The installation module includes a mounting base, a longitudinal adjustment mechanism, and a lateral adjustment mechanism. The mounting base is provided with a loading leaf spring mounting position. The longitudinal adjustment mechanism is used to adjust the position of the mounting base in the longitudinal direction, and the lateral adjustment mechanism is used to adjust the position of the mounting base in the lateral direction. In the initial installation state, the length direction of the loading leaf spring is parallel to the longitudinal direction.

5. The servo motor loading leaf spring calibration device as described in claim 4, characterized in that: The longitudinal adjustment mechanism and the lateral adjustment mechanism together form a two-dimensional sliding table structure.

6. The servo motor loading leaf spring calibration device as described in claim 4, characterized in that: The longitudinal adjustment mechanism is equipped with a first adjustment amount detection unit for detecting the longitudinal adjustment amount, and the lateral adjustment mechanism is equipped with a second adjustment amount detection unit for detecting the lateral adjustment amount.

7. The servo motor loading leaf spring calibration device as described in claim 1, characterized in that: The calibration drive mechanism includes a calibration drive unit and a worm gear transmission mechanism connected to the calibration drive unit, wherein the worm gear transmission mechanism is connected in series with the rudder shaft.

8. The servo motor loading leaf spring calibration device as described in claim 1, characterized in that: The rudder shaft is provided with an insertion slot, and the rudder wing is detachably inserted into the insertion slot.

9. A method for calibrating a servo motor's loaded leaf spring, characterized in that, The servo motor loading leaf spring calibration device according to any one of claims 1 to 8 is implemented; The method includes: a. Install the loading leaf spring onto the mounting module, so that the contact roller of the first leaf spring to be calibrated contacts the rudder wing; drive the rudder wing to deflect in the corresponding direction through the calibration drive mechanism, obtain the detection data of the torque detection mechanism and the angle detection mechanism, and obtain the torque-angle relationship dataset of the first leaf spring to be calibrated. b. Make the contact roller of the second reed to be calibrated, which is loaded with leaf spring, contact the rudder wing; drive the rudder wing to reverse through the calibration drive mechanism, obtain the detection data of the torque detection mechanism and the angle detection mechanism, and obtain the torque-angle relationship dataset of the second reed to be calibrated.

10. The servo motor loading leaf spring calibration method as described in claim 9, characterized in that, The method further includes: Adjust the longitudinal position of the loading spring mounting position of the mounting module to achieve spring calibration operations with different length specifications and / or different pressure core positions; And / or, adjust the position of the loading leaf spring mounting position of the mounting module in the lateral direction so that the same rudder can be compatible with loading leaf springs with different leaf spring pitches, and / or adjust the contact tightness between the contact roller and the rudder. In the initial installation state, the length direction of the loading leaf spring is parallel to the longitudinal direction.

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