Axial angle feedback integrated airborne rotating stable platform
By adopting an integrated design of shaft angle feedback on the rotary stabilization platform, the angle measurement circuit is arranged on the table and the table body, and the rotating shaft system is driven by a brushless torque motor, the position deviation and speed phenomenon in harsh environments are solved, and the onboard equipment is lightweight and miniaturized.
Patent Information
- Application Number
- CN202510528210.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2025-07-25
AI Technical Summary
The rotary stabilization platform is susceptible to condensation in harsh environments, resulting in position deviation and speeding. The size and weight of the high-precision shaft angle sensor are too large to meet the lightweight and miniaturization needs of airborne equipment.
The integrated design of shaft angle feedback is adopted, and the angle measurement circuit is arranged on the table surface and table of the rotating stability platform. The rotation shaft is driven by the brushless torque motor to drive the navigation gyro movement, and the circuit information is transmitted through the conductive slip ring to avoid additional angle measurement sensors.
It improves the adaptability of the rotating platform in harsh environments, realizes the lightweight and miniaturization of airborne equipment, and avoids the installation of additional angle measuring sensors.
Smart Images
Figure CN120368951A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of rotary platforms, and particularly to an integrated shaft angle feedback airborne rotary stabilization platform. Background Art
[0002] The rotary stabilization platform is an important device that provides accurate position information for airborne navigation gyroscopes. The working mode of this type of rotary stabilization platform is different from that of traditional turntables. It needs to move in the opposite direction relative to the airborne radar to provide a working environment that is relatively stationary with respect to the whole machine for the navigation gyroscope. Then, the platform receives a motion command to provide the required motion for the navigation gyroscope. This rotary stabilization platform is installed in a non-airtight cabin, and the working environment is relatively harsh, and there is also a condensation phenomenon. In such an extreme environment, it is required that the rotary accuracy of the stabilization platform is high, the overall machine mass is small, and the load is large. Research has found that the traditional grating angle measurement system has great technical risks in such a harsh environment. Especially the influence of the condensation phenomenon on optical devices may cause position deviation and runaway phenomenon, and the weight of the metal grating code disk is too large to further meet the requirements of lightweight and miniaturization. Summary of the Invention
[0003] The technical problem to be solved by this application is that the rotary stabilization platform is installed in a non-airtight cabin, the working environment is relatively harsh, and there is a condensation phenomenon. The grating angle measurement system is easily affected by the environment, resulting in position deviation and runaway phenomenon; the size and weight of the high-precision shaft angle sensor are too large to further meet the requirements of lightweight and miniaturization of airborne equipment.
[0004] To solve the above problems, this application provides an integrated shaft angle feedback airborne rotary stabilization platform, including a stabilization platform body, a stabilization platform tabletop, a rotary shaft system, and an angle measurement circuit; the stabilization platform body is arranged on the rotary table of the airborne radar, and a navigation gyroscope is arranged on the stabilization platform tabletop;
[0005] The rotary shaft system is arranged inside the stabilization platform body and is connected to the stabilization platform tabletop for driving the navigation gyroscope to move; the angle measurement circuit is respectively arranged on the lower end surface of the stabilization platform tabletop and the upper end surface of the stabilization platform body for measuring the position information of the navigation gyroscope.
[0006] Further, the rotary shaft system includes a main shaft, a bearing, a bearing outer ring gland, and a bearing inner gland;
[0007] The upper end surface of the main shaft is connected to the stabilization platform tabletop, the bearing and the bearing outer ring gland are respectively arranged on the outer periphery of the main shaft, and the bearing inner gland is arranged between the main shaft and the bearing outer ring gland.
[0008] Further, it further includes a brushless torque motor, and the lower end surface of the main shaft is connected to the rotor of the brushless torque motor.
[0009] Further, the brushless torque motor is used to drive the rotation of the rotating shaft system to drive the movement of the stable platform tabletop and the navigation gyro.
[0010] Further, the wires of the brushless torque motor are led out from inside the stable platform body.
[0011] Further, the angle measurement circuit includes an angle measurement circuit rotor and an angle measurement circuit stator;
[0012] The angle measurement circuit rotor is arranged on the lower end surface of the stable platform tabletop, and the angle measurement circuit stator is arranged on the upper end surface of the stable platform body.
[0013] Further, it further includes a conductive slip ring and slip ring wires;
[0014] The circuit of the angle measurement circuit rotor is connected to the conductive slip ring through a wire, and then led out from inside the stable platform body through the slip ring wires.
[0015] Further, the circuit of the angle measurement circuit stator is led out from inside the stable platform body through an internal wire groove.
[0016] Further, it further includes a bottom cover and a fork; the lower end surface of the stable platform body is connected to the bottom cover, and the fork is arranged on the bottom cover.
[0017] The above technical solution of the present application has the following advantages:
[0018] The shaft angle feedback integrated airborne rotary stable platform provided by the present application, by arranging the stable platform body on the rotary table of the airborne radar, a navigation gyro is arranged on the stable platform tabletop, the rotating shaft system is arranged inside the stable platform body and is connected to the stable platform tabletop for driving the movement of the navigation gyro; the angle measurement circuit is respectively arranged on the lower end surface of the stable platform tabletop and the upper end surface of the stable platform body for measuring the position information of the navigation gyro. Adopting the design idea of integrating the shaft system structure and shaft angle feedback, the angle measurement circuit is arranged on the tabletop and body of the rotary stable platform. This layout improves the adaptability of the rotary platform to harsh environments, and at the same time avoids installing additional angle measurement sensors, improving the miniaturization and light weight of airborne equipment. Description of the Drawings
[0019] To more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0020] Figure 1 Schematic diagram of the shaft angle feedback integrated airborne rotary stabilization platform provided by the present application;
[0021] Figure 2 Cross-sectional view of the shaft angle feedback integrated airborne rotary stabilization platform provided by the present application;
[0022] Figure 3 Wiring diagram of the shaft angle feedback integrated airborne rotary stabilization platform provided by the present application.
[0023] Reference numerals: 1, stabilization platform body; 2, stabilization platform tabletop; 3, bearing outer ring gland; 4, bearing inner gland; 5, conductive slip ring; 6, bearing; 7, brushless torque motor; 8, bottom cover; 9, fork; 10, slip ring wire; 11, main shaft; 12, angle measurement circuit stator; 13, angle measurement circuit rotor. Specific embodiments
[0024] The following will further describe in detail the specific embodiments of the present application in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.
[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0026] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0027] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that specific features, structures, or characteristics described in connection with that embodiment are included in one or more embodiments of this application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways.
[0028] This application provides an integrated shaft-angle feedback airborne rotary stabilization platform. The platform adopts the design concept of an integrated shaft system and shaft-angle feedback, and can achieve stable operation in the harsh airborne environment on the premise of meeting the requirements of light weight and miniaturization.
[0029] The following will further describe in detail the specific implementation manners of this application in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate this application, but are not used to limit the scope of this application.
[0030] An embodiment of this application provides an integrated shaft-angle feedback airborne rotary stabilization platform, including a stabilization platform body, a stabilization platform tabletop, a rotary shaft system, and an angle measurement circuit; the stabilization platform body is arranged on the rotary table of an airborne radar, and a navigation gyroscope is arranged on the stabilization platform tabletop; the rotary shaft system is arranged inside the stabilization platform body and is connected to the stabilization platform tabletop for driving the navigation gyroscope to move; the angle measurement circuit is respectively arranged on the lower end face of the stabilization platform tabletop and the upper end face of the stabilization platform body for measuring the position information of the navigation gyroscope.
[0031] In some embodiments, the rotary shaft system includes a main shaft, a bearing, a bearing outer ring gland, and a bearing inner gland; the upper end face of the main shaft is connected to the stabilization platform tabletop, the bearing and the bearing outer ring gland are respectively arranged on the outer periphery of the main shaft, and the bearing inner gland is arranged between the main shaft and the bearing outer ring gland.
[0032] In some embodiments, a brushless torque motor is further included, and the lower end face of the main shaft is connected to the rotor of the brushless torque motor.
[0033] In some embodiments, the brushless torque motor is used to drive the rotary shaft system to rotate, so as to drive the stabilization platform tabletop and the navigation gyroscope to move.
[0034] In some embodiments, the wires of the brushless torque motor are led out from inside the stabilization platform body.
[0035] In some embodiments, the angle measurement circuit includes an angle measurement circuit rotor and an angle measurement circuit stator; the angle measurement circuit rotor is disposed on the lower end surface of the stable platform tabletop, and the angle measurement circuit stator is disposed on the upper end surface of the stable platform body.
[0036] In some embodiments, a conductive slip ring and slip ring wires are further included; the circuit of the angle measurement circuit rotor is connected to the conductive slip ring through a wire, and then led out from inside the stable platform body through the slip ring wires.
[0037] In some embodiments, the circuit of the angle measurement circuit stator is led out from inside the stable platform body through an internal wire groove.
[0038] In some embodiments, a bottom cover and a fork are further included; the lower end surface of the stable platform body is connected to the bottom cover, and the fork is disposed on the bottom cover.
[0039] The integrated airborne rotary stable platform with shaft angle feedback provided by the present application includes a shaft system, a platform body, a tabletop and an angle measurement circuit; the stable platform body is fixed on the rotary table of an airborne radar, and a navigation gyro is installed on the stable platform tabletop; then the main shaft is driven by a brushless torque motor to drive the gyro to move; the angle measurement circuit is respectively arranged at the lower end of the tabletop and the upper end of the platform body, and the position information of the gyro is measured by the cooperation of the angle measurement circuit rotor and the angle measurement circuit stator. The present application adopts the design concept of integrating the shaft system structure and shaft angle feedback, and arranges the angle measurement circuit on the tabletop and the platform body of the rotary stable platform. This layout improves the adaptability of the rotary platform to harsh environments, and at the same time avoids installing additional angle measurement sensors, improving the miniaturization and light weight of airborne equipment.
[0040] Those skilled in the art can clearly understand that for the convenience and brevity of description, only the above-mentioned division of each functional unit and module is used as an example for illustration. In practical applications, the above functions can be allocated to different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiments can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. In addition, the specific names of the functional units and modules are only for the convenience of mutual distinction and do not limit the protection scope of the present application.
[0041] Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of them. Although the rotating stabilization platform in the embodiments of this application has a specific structure, it is not limited to this structure and is also applicable to other types of rotating platforms. Additionally, although this application is based on a single-axis rotating platform, it is not limited to a single axis and is also applicable to dual-axis and multi-axis rotating platforms. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of this application.
[0042] The following is illustrated through specific embodiments.
[0043] Embodiment
[0044] As Figures 1 to 3 shown, the airborne rotating stabilization platform provided by the embodiments of this application includes: a stabilization platform body 1, a stabilization platform tabletop 2, a bearing outer ring gland 3, a bearing inner gland 4, a conductive slip ring 5, a bearing 6, a brushless torque motor 7, a bottom cover 8, a fork 9, slip ring wires 10, a main shaft 11, a stator of an angle measurement circuit 12, and a rotor of an angle measurement circuit 13.
[0045] The lower end surface of the stabilization platform body 1 is fixed to the rotating table of the airborne radar by screws, and the navigation gyro is installed on the stabilization platform tabletop 2; the main shaft 11, the bearing 6, the bearing outer ring gland 3, and the bearing inner gland 4 form a high-precision rotating shaft system structure. The upper end surface of the main shaft 11 is connected to the stabilization platform tabletop 2 by screws, and the lower end surface of the main shaft 11 is connected to the rotor of the brushless torque motor 7 by screws.
[0046] The driving force of the brushless torque motor 7 is transmitted to the stabilization platform tabletop 2 through the high-precision rotating shaft system composed of the shaft 11, the bearing 6, the bearing outer ring gland 3, and the bearing inner gland 4. The stabilization platform tabletop 2 can drive the airborne navigation gyro to move. The rotor 13 of the angle measurement circuit is fixed to the lower end surface of the stabilization platform tabletop 2, and the stator 12 of the angle measurement circuit is fixed to the upper end surface of the stabilization platform body 1.
[0047] The position information of the airborne navigation gyro can be measured through the cooperation of the rotor 13 and the stator 12 of the angle measurement circuit. The circuit of the rotor 13 of the angle measurement circuit is connected to the conductive slip ring 5 through a wire, and then led out from the inside of the stabilization platform body 1 through the slip ring wires 10. The circuit of the stator 12 of the angle measurement circuit is led out from the inside of the stabilization platform body 1 through an internal wire groove. The wires of the brushless torque motor 7 are led out from the inside of the stabilization platform body 1.
[0048] The airborne rotary stabilization platform provided by this application adopts the design concept of integrating the shafting structure and shaft angle feedback, without installing additional angle sensors. On the premise of meeting the requirement of stable operation in the harsh airborne environment, it can achieve lightweight and miniaturized design. The airborne rotary stabilization platform provided by this application has a compact structure and a simple principle. Through the reasonable arrangement of the integrated shafting structure and shaft angle feedback, it can achieve high-precision movement of airborne equipment in harsh environments, while meeting the requirements of lightweight and miniaturization of airborne equipment.
[0049] The above-described embodiments are only used to illustrate the technical solutions of this application, rather than to limit them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included in the protection scope of this application.
Claims
1. An integrated airborne rotary stabilized platform with shaft angle feedback, characterized in that, It includes a stable platform body, a stable platform tabletop, a rotating shaft system, and an angle measurement circuit; the stable platform body is arranged on the rotating table of the airborne radar, and a navigation gyro is arranged on the stable platform tabletop; The rotating shaft system is arranged inside the stable platform body and is connected to the stable platform tabletop for driving the navigation gyro to move; the angle measurement circuit is respectively arranged on the lower end face of the stable platform tabletop and the upper end face of the stable platform body for measuring the position information of the navigation gyro.
2. The integrated airborne rotary stabilization platform with shaft angle feedback according to claim 1, wherein The rotating shaft system includes a main shaft, bearings, bearing outer ring gland, and bearing inner gland; The upper end face of the main shaft is connected to the stable platform tabletop, the bearings and the bearing outer ring gland are respectively arranged on the outer periphery of the main shaft, and the bearing inner gland is arranged between the main shaft and the bearing outer ring gland.
3. The integrated airborne rotary stabilized platform with shaft angle feedback according to claim 2, characterized in that It further includes a brushless torque motor, and the lower end face of the main shaft is connected to the rotor of the brushless torque motor.
4. The integrated airborne rotary stabilized platform with shaft angle feedback according to claim 3, characterized in that, The brushless torque motor is used to drive the rotation of the rotating shaft system to drive the stable platform tabletop and the navigation gyro to move.
5. The integrated airborne rotary stabilized platform with shaft angle feedback according to claim 3, characterized in that, The wires of the brushless torque motor are led out from inside the stable platform body.
6. The integrated airborne rotary stabilized platform with shaft angle feedback according to claim 1, characterized in that, The angle measurement circuit includes an angle measurement circuit rotor and an angle measurement circuit stator; The angle measurement circuit rotor is arranged on the lower end face of the stable platform tabletop, and the angle measurement circuit stator is arranged on the upper end face of the stable platform body.
7. The integrated airborne rotary stabilized platform with shaft angle feedback according to claim 6, characterized in that It further includes a conductive slip ring and slip ring wires; The circuit of the angle measurement circuit rotor is connected to the conductive slip ring through wires and then led out from inside the stable platform body through the slip ring wires.
8. The integrated shaft angle feedback airborne rotary stabilized platform according to claim 6, characterized in that The circuit of the angle measurement circuit stator is led out from inside the stable platform body through an internal wire groove.
9. The integrated airborne rotary stabilized platform with shaft angle feedback according to claim 1, characterized in that, It further includes a bottom cover and a fork; the lower end face of the stable platform body is connected to the bottom cover, and the fork is arranged on the bottom cover.