In-situ calibration structure
Through the on-site in-situ calibration structure, the aircraft model is calibrated in multiple dimensions, which solves the problems of inefficiency and instability caused by frequent disassembly in the prior art, and achieves efficient and accurate calibration results.
Patent Information
- Application Number
- CN202421521591.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-06-28
AI Technical Summary
In the prior art, aerodynamic load testing of aircraft models requires frequent disassembly for laboratory calibration, resulting in low working efficiency and unstable test data.
Design a field in-situ calibration structure, including work surfaces, inner and outer support loading columns, vertical and horizontal calibration decoupling components, inverters and bottom surfaces, through which multi-dimensional torque and force calibration of the aircraft model is achieved to avoid disassembly operations.
It improves the working efficiency of the calibration process, ensures the accuracy and stability of the test data, and realizes on-site calibration without disassembly.
Smart Images
Figure CN223295619U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of calibration equipment, and in particular to an on-site in-situ calibration structure. Background Art
[0002] With the demands of various fields such as transportation, patrol, and rescue, aircraft models of this type are required to complete low-altitude, low-speed maneuvers and takeoff and landing. This requires aerodynamic load characteristic testing of the aircraft model as a whole and its connected components on a low-speed wind tunnel static balance to facilitate subsequent optimization and improvement by designers.
[0003] To ensure the accuracy and long-term stability of pneumatic load test results, it is urgent to solve the problem of on-site calibration of balance devices. Currently, the on-site calibration of large-scale external balance devices has not been solved abroad, and calibration is usually carried out by frequently disassembling and sending them to the laboratory for inspection. Summary of the Invention
[0004] In view of this, the present application proposes an on-site in-situ calibration structure, the calibration process of which does not require frequent disassembly, improves work efficiency, and ensures the accuracy of test data.
[0005] According to one aspect of the present application, there is provided an on-site in-situ calibration structure, comprising: a working table, an inner supporting loading column, an outer supporting loading column, a vertical calibration decoupling assembly, a horizontal calibration decoupling assembly, a reverser, and a bottom table;
[0006] There are multiple outer supporting and loading columns, each of which is vertically fixed on the bottom table and circumferentially arranged around the multiple inner supporting and loading columns;
[0007] The number of the vertical calibration decoupling assemblies matches the number of the outer support loading columns, and the vertical calibration decoupling assemblies are vertically mounted on the outer support loading columns;
[0008] The number of the reversers matches the number of the outer supporting loading columns, the reversers are fixedly mounted on the vertical calibration decoupling assembly, and the other end of the reverser is connected to the work surface;
[0009] There are more than two inner calibration decoupling assemblies, which are fixedly mounted on the top of the inner support loading column, and the inner calibration decoupling assemblies are in contact with the work surface.
[0010] In a possible implementation, the vertical calibration decoupling assembly includes a vertical calibration power member, a vertical calibration decoupling member, and a vertical calibration sensor;
[0011] The vertical calibration power member, the vertical calibration decoupling member and the vertical calibration sensor are connected in series in sequence, and the vertical calibration power member is fixed to the outer supporting loading column;
[0012] The reverser is mounted on one side of the vertical alignment sensor, and the vertical alignment sensor extends into the interior of the reverser.
[0013] In a possible implementation, the horizontal calibration decoupling assembly includes a horizontal calibration power member, a horizontal calibration decoupling member, and a horizontal calibration sensor;
[0014] A weight-reducing hole is provided on the work surface, and the horizontal calibration power component, the horizontal calibration decoupling component and the horizontal calibration sensor are all located at the position of the weight-reducing hole;
[0015] The horizontal calibration power member is fixed on the top of the inner supporting loading column, the horizontal calibration power member, the horizontal calibration decoupling member and the horizontal calibration sensor are connected in series in sequence through threads, and the horizontal calibration sensor abuts against the hole wall of the weight-reducing hole.
[0016] In a possible implementation, the inner supporting loading column includes a vertical beam and a horizontal beam;
[0017] There are more than two vertical beams, each of which is vertically fixed on the bottom table, and the cross beam is horizontally fixed on the top of the vertical beam, and the structure of the cross beam matches the structure of the weight-reducing hole;
[0018] The horizontal calibration power member is fixedly installed on the top of the beam.
[0019] In a possible implementation, four vertical beams are provided, and the four vertical beams are arranged around a rectangular area;
[0020] The cross beam is in a rectangular frame shape, and the four corners of the cross beam are respectively fixed to one of the vertical beams.
[0021] In a possible implementation, eight of each of the horizontal calibration power member, the horizontal calibration decoupling member, and the horizontal calibration sensor are provided;
[0022] The horizontal calibration power parts are grouped in pairs and fixedly installed on the four sides of the beam.
[0023] In a possible implementation, four outer supporting loading columns are provided.
[0024] In a possible implementation, the inner supporting and loading columns and the outer supporting and loading columns are both made of high-strength alloy steel.
[0025] In a possible implementation, the vertical calibration decoupling member is a flexible decoupling rod, and the vertical calibration decoupling member and the vertical calibration sensor are connected in series via threads.
[0026] In a possible implementation, the horizontal calibration decoupling member is a flexible decoupling rod, and the horizontal calibration decoupling member and the horizontal calibration sensor are connected in series via threads.
[0027] The in-situ calibration structure of the embodiment of the present application is provided with a work surface, an inner support loading column, an outer support loading column, a vertical calibration decoupling assembly, a horizontal calibration decoupling assembly, a reverser and a bottom table, wherein the inner support loading column and the outer support loading column play a supporting role. The vertical calibration decoupling assembly and the reverser are installed on the outer support loading column and can be used to complete the calibration of the lift in the Fy direction, the Mz pitch moment and the Mx roll moment. The horizontal calibration decoupling assembly is installed on the inner support loading column to complete the calibration of the Fx axial force, the Fz lateral force and the My yaw moment. The calibration process is as follows: before carrying out the on-site in-situ calibration, the load is input, and in the vertical direction, the vertical calibration decoupling assembly lifts the work surface, and with the help of the reverser, the main direction Fy lift calibration, the Mz pitch moment and the Mx roll moment calibration are realized. During lateral force calibration, the horizontal calibration decoupling assembly sequentially lifts one side of the work surface to calibrate the axial force (Fx), the lateral force (Fz), and the yaw moment (My). This calibration process requires no disassembly, improving work efficiency and ensuring the accuracy of test data.
[0028] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.
[0030] Figure 1 An assembly diagram showing an on-site in-situ calibration structure according to an embodiment of the present application;
[0031] Figure 2 A diagram showing the main structure of the on-site in-situ calibration structure according to an embodiment of the present application;
[0032] Figure 3 A structural diagram showing a vertical calibration decoupling assembly of an in-situ calibration structure according to an embodiment of the present application. DETAILED DESCRIPTION
[0033] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.
[0034] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.
[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this invention, "plurality" means two or more, unless otherwise specifically defined.
[0036] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.
[0037] In addition, numerous specific details are provided in the detailed description below to better illustrate the present application. Those skilled in the art will appreciate that the present application can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.
[0038] Figure 1 An assembly diagram showing the on-site in-situ calibration structure of an embodiment of the present application. Figure 2 A main structural diagram of the on-site in-situ calibration structure of an embodiment of the present application is shown. Figure 3 The structural diagram of the vertical calibration decoupling assembly of the on-site in-situ calibration structure of the embodiment of the present application is shown. Figures 1 to 3As shown, the in-situ calibration structure includes a work surface 100, inner support loading columns 200, outer support loading columns 300, a vertical calibration decoupling assembly 400, a horizontal calibration decoupling assembly 500, a deflector 600, and a bottom surface 700. Multiple outer support loading columns 300 are provided, each of which is vertically fixed to the bottom surface 700 and circumferentially arranged around the inner support loading columns 200. The number of vertical calibration decoupling assemblies 400 matches the number of outer support loading columns 300, and the vertical calibration decoupling assemblies 400 are vertically mounted on the outer support loading columns 300. The number of deflectors 600 matches the number of outer support loading columns 300, and the deflectors 600 are fixedly mounted on the vertical calibration decoupling assembly 400, with the other end of the deflectors 600 connected to the work surface 100. There are more than two inner calibration decoupling assemblies provided, and the two or more inner calibration decoupling assemblies are fixedly mounted on the top of the inner support loading column 200 , and the inner calibration decoupling assemblies are in contact with the work surface 100 .
[0039] The in-situ calibration structure of the embodiment of the present application is provided with a work surface 100, an inner support loading column 200, an outer support loading column 300, a vertical calibration decoupling assembly 400, a horizontal calibration decoupling assembly 500, a reverser 600 and a bottom table 700, wherein the inner support loading column 200 and the outer support loading column 300 play a supporting role. The vertical calibration decoupling assembly 400 and the reverser 600 installed on the outer support loading column 300 can be used to complete the calibration of the Fy direction lift, Mz pitch moment and Mx roll moment. The horizontal calibration decoupling assembly 500 installed on the inner support loading column 200 is used to complete the calibration of the Fx axial force, Fz lateral force and My yaw moment.
[0040] The calibration process is as follows: Before conducting on-site in-situ calibration, loads are input. Vertically, the vertical calibration decoupling assembly 400 sequentially lifts the work surface 100, calibrating the main lift force (Fy), the pitch moment (Mz), and the roll moment (Mx) with the aid of the reverser 600. For lateral force calibration, the horizontal calibration decoupling assembly 500 sequentially lifts one side of the work surface 100 to calibrate the lateral force (Fx axial force), the lateral force (Fz), and the yaw moment (My). This calibration process requires no disassembly, improving work efficiency and ensuring the accuracy of test data.
[0041] In one possible implementation, vertical calibration decoupling assembly 400 includes a vertical calibration power member 510, a vertical calibration decoupling member 520, and a vertical calibration sensor 530. These components are connected in series, with vertical calibration power member 510 being fixed to outer support loading column 300. Reversing device 600 is mounted on one side of vertical calibration sensor 530, and vertical calibration sensor 530 extends into the interior of reversing device 600.
[0042] In one possible implementation, the horizontal calibration decoupling assembly 400 includes a horizontal calibration power member 410, a horizontal calibration decoupling member 420, and a horizontal calibration sensor 430. A weight-reducing hole is provided on the work surface 100, and the horizontal calibration power member 410, the horizontal calibration decoupling member 420, and the horizontal calibration sensor 430 are all located at the weight-reducing hole. The horizontal calibration power member 410 is fixed to the top of the inner supporting loading column 200. The horizontal calibration power member 410, the horizontal calibration decoupling member 420, and the horizontal calibration sensor 430 are sequentially connected in series via threads, and the horizontal calibration sensor 430 abuts against the wall of the weight-reducing hole.
[0043] Furthermore, in one possible implementation, the inner supporting loading column 200 includes a vertical beam 210 and a horizontal beam 220. There are at least two vertical beams 210, each of which is vertically fixed to the bottom table 700, and a horizontal beam 220 is horizontally fixed to the top of the vertical beam 210. The structure of the horizontal beam 220 matches the structure of the weight-reducing hole. The horizontal alignment power member 410 is fixedly mounted on the top of the horizontal beam 220.
[0044] Furthermore, in a possible implementation, four vertical beams 210 are provided, and the four vertical beams 210 are arranged in a rectangular area, and the horizontal beam 220 is in a rectangular frame shape, and the four corners of the horizontal beam 220 are fixed to a vertical beam 210 respectively.
[0045] Furthermore, in a possible implementation, eight horizontal calibration power members 410 , eight horizontal calibration decoupling members 420 and eight horizontal calibration sensors 430 are provided, and the horizontal calibration power members 410 are fixedly installed on the four sides of the beam 220 in groups of two.
[0046] In a possible implementation, four outer supporting loading columns 300 are provided.
[0047] In one possible implementation, both the inner support and loading columns 200 and the outer support and loading columns 300 are constructed from high-strength alloy steel. They are primarily designed to withstand the combined loads of multi-dimensional vector forces. The location of the loading support structure is primarily determined by the measuring ranges of the vertical calibration sensor 530 and the horizontal calibration sensor 430, ensuring optimal integration with the overall device.
[0048] Furthermore, in a possible implementation, the vertical calibration decoupling member 520 is a flexible decoupling rod, and the vertical calibration decoupling member 520 and the vertical calibration sensor 530 are connected in series via threads.
[0049] In a possible implementation, the horizontal calibration decoupling member 420 is a flexible decoupling rod, and the horizontal calibration decoupling member 420 and the horizontal calibration sensor 430 are connected in series via threads.
[0050] In a possible implementation, the vertical calibration sensor 530 and the horizontal calibration sensor 430 both use single-component output, and the vertical calibration power member 510 and the horizontal calibration power member 410 are both hydraulic cylinders.
[0051] In a possible implementation, a mounting seat is provided on the crossbeam 220 , and the horizontal alignment power member 410 is fixedly mounted on the mounting seat. When the crossbeam 220 is a rectangular frame, the mounting seat is arranged axially around the crossbeam 220 .
[0052] When the in-situ calibration structure of the embodiment of the present application is calibrated, the vertical calibration power member 510 begins to apply a load. In the vertical direction, the vertical calibration decoupling member 520 and the vertical calibration sensor 530 connected in series on the piston sequentially lift the worktable 100 to achieve the main direction Fy lift calibration. The reverser 600 assists in this, and can achieve the Mz pitch moment and Mx roll moment calibration.
[0053] During lateral force calibration, a group of horizontal calibration power members 410 (two in a group) in the selected lateral direction are controlled to extend simultaneously, and the horizontal calibration decoupling member 420 and the horizontal calibration sensor 430 connected in series on the piston are used to lift up one side of the center of the work table 100 to achieve calibration of the axial force Fx and the lateral force Fz; a group of horizontal calibration power members 410 in the selected lateral direction are controlled to be pressurized simultaneously to achieve calibration of the yaw moment My.
[0054] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.
Claims
1. An in-situ calibration structure, characterized in that: include: A work surface, an inner support loading column, an outer support loading column, a vertical alignment decoupling assembly, a horizontal alignment decoupling assembly, a reverser, and a bottom surface; There are multiple outer supporting and loading columns, each of which is vertically fixed on the bottom table and circumferentially arranged around the multiple inner supporting and loading columns; The number of the vertical calibration decoupling assemblies matches the number of the outer support loading columns, and the vertical calibration decoupling assemblies are vertically mounted on the outer support loading columns; The number of the reversers matches the number of the outer supporting loading columns, the reversers are fixedly mounted on the vertical calibration decoupling assembly, and the other end of the reverser is connected to the work surface; There are more than two inner calibration decoupling assemblies provided, and the two or more inner calibration decoupling assemblies are fixedly mounted on the top of the inner support loading column, and the inner calibration decoupling assemblies abut against the work surface.
2. The in-situ calibration structure according to claim 1, wherein: The vertical calibration decoupling assembly includes a vertical calibration power member, a vertical calibration decoupling member and a vertical calibration sensor; The vertical calibration power member, the vertical calibration decoupling member and the vertical calibration sensor are connected in series in sequence, and the vertical calibration power member is fixed to the outer supporting loading column; The reverser is mounted on one side of the vertical alignment sensor, and the vertical alignment sensor extends into the interior of the reverser.
3. The in-situ calibration structure according to claim 1, wherein: The horizontal calibration decoupling assembly includes a horizontal calibration power member, a horizontal calibration decoupling member and a horizontal calibration sensor; A weight-reducing hole is provided on the work surface, and the horizontal calibration power component, the horizontal calibration decoupling component and the horizontal calibration sensor are all located at the position of the weight-reducing hole; The horizontal calibration power member is fixed on the top of the inner supporting loading column, the horizontal calibration power member, the horizontal calibration decoupling member and the horizontal calibration sensor are connected in series in sequence through threads, and the horizontal calibration sensor abuts against the hole wall of the weight-reducing hole.
4. The in-situ calibration structure according to claim 3, characterized in that: The inner supporting loading column includes a vertical beam and a horizontal beam; There are more than two vertical beams, each of which is vertically fixed on the bottom table, and the cross beam is horizontally fixed on the top of the vertical beam, and the structure of the cross beam matches the structure of the weight-reducing hole; The horizontal calibration power member is fixedly installed on the top of the beam.
5. The in-situ calibration structure according to claim 4, characterized in that: There are four vertical beams, which are arranged around a rectangular area; The cross beam is in a rectangular frame shape, and the four corners of the cross beam are respectively fixed to one of the vertical beams.
6. The in-situ calibration structure according to claim 5, characterized in that: There are eight horizontal calibration power members, eight horizontal calibration decoupling members and eight horizontal calibration sensors; The horizontal calibration power parts are grouped in pairs and fixedly installed on the four sides of the beam.
7. The in-situ calibration structure according to claim 1, wherein: Four outer supporting loading columns are provided.
8. The in-situ calibration structure according to claim 1, wherein: The inner supporting and loading columns and the outer supporting and loading columns are both made of high-strength alloy steel.
9. The in-situ calibration structure according to claim 2, characterized in that: The vertical calibration decoupling member is a flexible decoupling rod, and the vertical calibration decoupling member is connected in series with the vertical calibration sensor via threads.
10. The in-situ calibration structure according to claim 3, characterized in that: The horizontal calibration decoupling component is a flexible decoupling rod, and the horizontal calibration decoupling component is connected in series with the horizontal calibration sensor via threads.