Automatic turnover device for accelerometer
By designing an accelerometer automatic flip device, the automatic flip of the accelerometer is achieved using the drive motor and reducer gear, the problems of poor synchronization and inefficiency in the prior art are solved, and efficient system integration testing is achieved.
Patent Information
- Application Number
- CN202421772181.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-07-24
AI Technical Summary
In the prior art, the flip test of accelerometers requires manual operation, which has poor synchronization, low efficiency and cannot meet the automation requirements of system integration testing.
An automatic flip device of accelerometer is designed, including a bracket, a flip table and a control mechanism. It uses a driving motor, a reduction gear and an angle sensor to achieve automatic flip and precise control of the accelerometer, and combines a controller to achieve programmatic operations.
The synchronization and accuracy of accelerometer flip is achieved, the difficulty of manual operation is reduced, the testing efficiency is improved, and the automation needs of system integration testing is met.
Smart Images
Figure CN223244608U_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a testing technology for an accelerometer, in particular to an accelerometer rollover testing device in a flight control system integration test. Background Art
[0002] Accelerometers are a component of flight control systems and are classified as feedback sensors based on their function. When the aircraft's attitude changes, they can sense the aircraft's normal, axial, and lateral overload conditions in real time and output electrical signals proportional to acceleration, which are then used for closed-loop control of the flight control system. To improve the reliability of flight control systems, multiple accelerometers are typically deployed to ensure system redundancy.
[0003] Given the importance of the flight control system within the airborne system, ground integration testing of the flight control system is required during the ground phase. Currently, during ground integration testing of the flight control system, cross-linking testing of the accelerometers requires manual operation, simultaneously changing the normal placement of multiple accelerometers to a 90° sideways position. Status information is read from the flight test interface to verify the consistency of the set status with the expected value. Once the inspection is complete, the multiple accelerometers are manually restored to their normal placement for subsequent testing.
[0004] The above test method has certain disadvantages, specifically: (1) The synchronization of manual state setting is poor, and multiple accelerometers need to be flipped and maintained synchronously. If there is a difference in synchronization during flipping, it will cause system abnormality and fault reporting, affecting the validity of the test results; (2) The test efficiency is low. During the test, manual reciprocation to the product test bench area is required for operation. Not only is the manpower investment cost high, but the test is also time-consuming and cannot meet the automation and programming requirements of system integration testing. Summary of the Invention
[0005] In view of the problems existing in the prior art, the present invention aims to provide an accelerometer flipping device.
[0006] An automatic flipping device for an accelerometer is characterized in that the flipping device contains a bracket, a flipping platform and a control mechanism, the bracket is composed of a flat plate support and vertical support plates on both sides, the flipping platform is composed of a mounting plate and vertical connecting plates on both sides, the upper surface of the mounting plate is provided with two accelerometer mounting seats, the connecting plates on both sides of the flipping platform are movably connected to the support plates on both sides of the bracket through rotating shafts, the control mechanism contains a driving motor, a reduction gear and a controller, the controller controls the driving motor to drive the reduction gear to move, and the reduction gear drives the flipping platform to achieve flipping through the rotating shaft on one side of the flipping platform.
[0007] The accelerometer automatic flipping device is characterized in that the reduction gear is arranged between the right connecting plate of the flipping platform and the right supporting plate of the bracket, and the rotating shaft of the right connecting plate of the flipping platform is connected to the reduction gear and driven by the reduction gear.
[0008] The automatic flipping device for accelerometer is characterized in that a scale plate is provided on the outside of the right connecting plate of the flipping platform, the scale plate is coaxially linked with the connecting plate, and angle marks are provided on the scale plate.
[0009] The accelerometer automatic flipping device is characterized in that an angle sensor is also installed on the right side of the flipping platform to output a digital signal of the flipping platform angle information in real time.
[0010] The accelerometer automatic flipping device is characterized in that the controller includes: a processor module, a display and button module, a power supply module and a communication module. The processor module receives control instructions from the display and button module, compares the control instructions with the digital signal output by the angle sensor, and outputs motion instructions for the drive motor to achieve precise closed-loop control of the flip angle; the power supply module provides operating voltage for the processor module, display button module, communication module and drive motor; the display and button module realizes the setting and display of the deflection direction and angle; the communication module receives control instructions, transmits them to the processor module, realizes programmed control of the flip table, and feeds back the status of the controller to the processor module.
[0011] This patent proposes an accelerometer flipping device that ensures the synchronization of the flipping of two accelerometers. Combined with a controller, it can realize the automatic deflection of the two accelerometers at any angle, reducing the operational difficulty and workload of the test personnel and improving the test efficiency. The entire flipping process is safe and stable, and it is easy to maintain and install and disassemble.
[0012] The present application is described in further detail below with reference to the accompanying drawings of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 Schematic diagram of the accelerometer flip device structure.
[0014] Explanation of the numbers in the figure: 1 flip table, 2 left support plate, 3 right support plate, 4 flat plate support, 5 left connecting plate, 6 right connecting plate, 7 mounting plate, 8 accelerometer mounting base, 9 drive motor, 10 angle dial, 11 reduction gear, 12 angle sensor, 13 test cable, 14 controller. DETAILED DESCRIPTION
[0015] Referring to the accompanying drawings, the accelerometer automatic flipping device of the present application contains a bracket, a flipping platform and a control mechanism. The bracket is composed of a flat plate support 4, a left support plate 2, and a right support plate 3. The left support plate 2 and the right support plate 3 are vertically installed at the two ends of the flat plate support 4. The flipping platform 1 is composed of a mounting plate 7 and a left connecting plate 5 and a right connecting plate 6. The left connecting plate 5 and the right connecting plate 6 are vertically installed at the two ends of the mounting plate 7. Two accelerometer mounting seats 8 are provided on the upper surface of the mounting plate 7, which can be used to install two accelerometers at the same time. The two accelerometer mounting seats 8 can be arranged along the axial or lateral direction of the mounting plate 7, and combined with the rotation of the flipping platform 1 to realize the synchronous setting of the lateral and axial states of the two accelerometers. The left connecting plate 5 and the right connecting plate 6 of the flipping platform are coaxially connected to the support plates on both sides of the bracket through a rotating shaft.
[0016] The control mechanism includes a drive motor 9, a reduction gear 11, and a controller 14. The controller 14 controls the drive motor 9 through the test cable 13 to drive the reduction gear 11 to move. The reduction gear 11 drives the flip table 1 to flip through the rotating shaft on one side of the flip table 1. In the embodiment, the reduction gear 11 is arranged between the right connecting plate 6 of the flip table and the right support plate 3 of the bracket. The rotating shaft of the right connecting plate 6 of the flip table 1 is connected to the reduction gear 11, and is driven by the reduction gear 11 to drive the flip table 1 to flip. In the embodiment, the drive motor 9 is arranged on the flat plate support 4 below the right connecting plate 6. The drive motor 9 drives the reduction gear 11 through the worm gear to drive the flip table 1 to flip to one side.
[0017] To detect the turning angle of the turning platform 1, an angle scale 10 is installed on the outside of the right connecting plate 6 of the turning platform 1. The angle scale 10 is coaxially linked to the right connecting plate 6, allowing the turning platform 1 to rotate 360 degrees. Angle scale 10 is engraved on the side. During installation, the 0 scale mark is aligned with the horizontal. The angle scale 10 moves synchronously with the turning platform 1 to indicate the real-time angle. An angle sensor 12 is also installed on the right side of the turning platform 1 to output a digital signal indicating the angle of the turning platform 1 in real time.
[0018] In order to implement precise control of the flip table 1, in the embodiment, the controller includes: a processor module, a display and button module, a power supply module and a communication module. The processor module receives control instructions from the display and button module, compares the control instructions with the digital signal output by the angle sensor, and outputs motion instructions for the drive motor to achieve precise closed-loop control of the flip angle; the power supply module provides operating voltage for the processor module, display and button module, communication module and drive motor; the display and button module realizes the setting and display of the deflection direction and angle; the communication module receives control instructions, transmits them to the processor module, realizes programmed control of the flip table, and feeds back the status of the controller to the processor module.
[0019] During use, first install the two accelerometers sequentially on the accelerometer mounting base 8, and connect the controller 14 and the drive motor 9 using the test cable 13. Turn on the power switch of the controller 14, and input the flip direction and angle control instructions to the controller 14 through the host computer software. The drive motor 9 drives the reduction gear 11 to operate, causing the accelerometer, along with the mounting plate 7, the left connecting plate 5, and the right connecting plate 6, to flip around the rotation axis. When the output information of the angle sensor 12 is consistent with the control instruction, the controller 14 stops the drive motor 9, and the accelerometer moves to the set position and maintains it. The flight control system is checked for the overload status output by the accelerometer.
[0020] The flip reset control command is input to the controller 14 again through the host computer software. The accelerometer, together with the mounting plate 7, the left connecting plate 5 and the right connecting plate 6, flips around the rotation axis to the initial position and stops. Check the overload status output by the accelerometer received by the flight control system.
[0021] After the above steps are completed, the power supply of the controller 14 is turned off and the connection of the test cable 13 is disconnected.
Claims
1. An automatic flipping device for an accelerometer, characterized in that: The flipping device includes a bracket, a flipping platform and a control mechanism. The bracket consists of a flat plate support and vertical support plates on both sides. The flipping platform consists of a mounting plate and vertical connecting plates on both sides. Two accelerometer mounting seats are provided on the upper surface of the mounting plate. The connecting plates on both sides of the flipping platform are movably connected to the support plates on both sides of the bracket through rotating shafts. The control mechanism includes a driving motor, a reduction gear and a controller. The controller controls the driving motor to drive the reduction gear to move. The reduction gear drives the flipping platform to flip through the rotating shaft on one side of the flipping platform.
2. The accelerometer automatic flipping device according to claim 1, wherein: The reduction gear is arranged between the right connecting plate of the turning platform and the right supporting plate of the bracket. The rotating shaft of the right connecting plate of the turning platform is connected to the reduction gear and is driven by the reduction gear.
3. The accelerometer automatic flipping device according to claim 1, wherein: A scale plate is provided on the outside of the right connecting plate of the turning platform. The scale plate is coaxially linked with the connecting plate and angle marks are provided on the scale plate.
4. The accelerometer automatic flipping device according to claim 1, wherein: The right side of the turning platform is also equipped with an angle sensor, which outputs a digital signal of the turning platform angle information in real time.