A compact full-outer maintenance-free space azimuth transmission device

Abstract

The application discloses a compact azimuth transmission device with external maintenance-free space, which comprises an azimuth shell (1), an azimuth cup-shaped part (2) and an installation space formed based on the azimuth cup-shaped part (2). The lower azimuth shell (3) closes the installation space and provides a flat installation surface based on the azimuth shell (1). The azimuth cup-shaped part (2) has a multi-stage stepped structure, and the output shaft is provided with an azimuth motor rotor (10) of an azimuth motor, a multi-stage rotary transformer rotor (12) of a multi-stage rotary transformer and a bus ring rotor (14) of a bus ring. The azimuth motor and the multi-stage rotary transformer each comprise corresponding stators and rotors, and the corresponding stators are installed in the installation space and correspond to the positions of the respective rotors. The bus ring stator (13) of the bus ring is fixedly installed on the lower azimuth shell (3), and the bus ring rotor (14) of the bus ring is embedded in the stepped structure of the azimuth cup-shaped part (2). The application provides the azimuth transmission device with the advantages of compact structure, small physical space occupation and no need to reserve installation and maintenance space below the installation surface.

Description

Technical Field

[0001] This application relates to the field of equipment technology, and in particular to a compact, fully external, maintenance-free orientation transmission device. Background Technology

[0002] Currently, the azimuth drive mechanism for fire control radar antenna mounts is generally located at the bottom of the radar antenna or array. This azimuth drive mechanism needs to be integrated below the mounting surface, as exemplified by the radar antenna mount azimuth drive assembly disclosed in CN216214126U. This assembly, besides requiring a suitable mounting interface for the azimuth drive mechanism, also needs ample space for installation and maintenance below the mounting surface. However, with advancements in assembly technology, fire control systems are placing higher demands on radar miniaturization and installation space. Summary of the Invention

[0003] This application provides a compact, fully external, maintenance-free orientation transmission device, which is used to design an orientation transmission device with a compact structure, small physical space occupation, and no need to reserve installation and maintenance space below the mounting surface.

[0004] This application provides a compact, fully external, maintenance-free azimuth transmission device, including: an azimuth housing 1, an azimuth cup-shaped component 2, a lower azimuth housing 3, an azimuth motor, a support bearing 8, a multi-stage resolver, and a busbar ring;

[0005] The azimuth housing 1 is installed in conjunction with the azimuth cup-shaped component 2, and forms an installation space based on the azimuth cup-shaped component 2. The lower azimuth housing 3 encloses the installation space and provides a flat installation surface to the outside based on the azimuth housing 1, so that there is no reserved space below the installation surface. The support bearing 8, the azimuth motor, the multi-stage resolver and the bus ring are installed in the installation space.

[0006] The directional cup-shaped component 2 is the output shaft of the directional motor, which has a multi-stage stepped structure. The directional motor rotor 10, the multi-stage resolver rotor 12, and the busbar rotor 14 are mounted on the output shaft.

[0007] The azimuth motor and the multi-stage resolver each include a corresponding stator and rotor, and the corresponding stators are installed in the installation space, corresponding to the positions of their respective rotors; and

[0008] The busbar stator 13 of the busbar is fixedly mounted on the lower housing 3, and the busbar rotor 14 of the busbar is embedded in the stepped structure of the azimuth cup-shaped part 2.

[0009] Optionally, the azimuth motor stator 9 of the azimuth motor is installed from the bottom of the azimuth housing 1 upwards, and is positioned by the outer circular surface of the azimuth motor stator 9 and the inner circular surface of the azimuth housing 1.

[0010] The azimuth motor rotor 10 is fixedly connected to the azimuth cup-shaped part 2 and is installed from the bottom of the azimuth housing 1 upwards, with the inner circular surface of the azimuth motor rotor 10 and the outer circular surface of the azimuth cup-shaped part 2 for positioning.

[0011] When the azimuth transmission device is working, the driving azimuth cup-shaped component 2 drives the radar antenna or array to rotate as required.

[0012] Optionally, the multi-stage resolver includes a multi-stage resolver stator 11 and a multi-stage resolver rotor 12;

[0013] The multi-stage resolver stator 11 is fixedly connected to the lower housing 3 and positioned by a flange stop.

[0014] The multi-stage resolver rotor 12 is fixedly connected to the lower end of the azimuth cup-shaped component 2, and is positioned by the lower end face of the azimuth cup-shaped component 2.

[0015] Optionally, the support bearing 8 includes a bearing stator and a bearing rotor;

[0016] The bearing stator is fixedly connected to the orientation housing 1;

[0017] The bearing rotor is fixedly connected to the directional cup-shaped component 2;

[0018] The load driven by the azimuth transmission device is sequentially transmitted through the azimuth cup-shaped part 2 and the azimuth bearing rotor to the azimuth bearing stator, the azimuth housing, and the mounting surface.

[0019] Optionally, the azimuth housing 1 is provided with a labyrinth boss to achieve a labyrinth-type dynamic seal installation with the azimuth cup-shaped part 2, and to be rotatably connected by an azimuth bearing.

[0020] Optionally, the outer surface of the oriented cup-shaped component 2 is flush with the outer surface of the oriented housing 1;

[0021] A scale 7 is also provided at the joint of the labyrinth boss. The scale 7 is used to indicate the orientation rotation angle of the transmission device, and to enhance the dynamic seal of the rotating part of the orientation transmission device.

[0022] Optionally, a socket 16 is also provided on the outer surface of the orientation housing 1.

[0023] Optionally, the busbar rotor 14 is embedded in the stepped structure of the directional cup-shaped member 2 and is flush with the step. A terminal block 15 is also provided on the busbar rotor 14.

[0024] Optionally, the orientation transmission device further includes a sealing ring; the sealing ring is disposed in a groove on one side of the mounting surface of the orientation housing 1.

[0025] In this embodiment, the azimuth housing and the azimuth cup-shaped component form an installation space, and all components are placed within the installation space. This provides a flat installation surface to the outside, eliminating the need for reserved space or maintenance space below the installation surface. This enables fully external installation of the radar, requiring only a suitable installation plane and interface for the radar to be put into use.

[0026] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0027] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0028] Figure 1 This is a cross-sectional structural schematic diagram of the orientation transmission device according to an embodiment of this application;

[0029] Figure 2 This is a three-dimensional side view of the overall structure of the orientation transmission device implemented in this application;

[0030] Figure 3 This is a side view schematic diagram of the orientation housing component structure of the orientation transmission device implemented in this application;

[0031] Reference numerals: 1. Azimuth housing; 2. Azimuth cup-shaped part; 3. Lower housing; 4. Screw sleeve; 5. First stop pin plate; 6. Second stop pin plate; 7. Scale; 8. Azimuth bearing; 9. Azimuth motor stator; 10. Azimuth motor rotor; 11. Multi-stage resolver stator; 12. Multi-stage resolver rotor; 13. Busbar stator; 14. Busbar rotor; 15. Terminal block; 16. Socket; 17. Sealing ring; 101. Mounting surface; 102. Mounting interface through hole; 103. Dynamic sealing labyrinth structure; 104. Weight reduction hole; 105. Through hole for mounting the azimuth bearing stator; 106. Azimuth bearing stator stop. Detailed Implementation

[0032] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0033] This application provides a compact, fully external, maintenance-free orientation transmission device, such as... Figure 1 , Figure 2 , Figure 3 As shown, it includes: azimuth housing 1, azimuth cup-shaped component 2, lower azimuth housing 3, azimuth motor, support bearing 8, multi-stage resolver and busbar ring.

[0034] The azimuth housing 1 is installed in conjunction with the azimuth cup-shaped component 2, forming an installation space based on the azimuth cup-shaped component 2. The lower azimuth housing 3 encloses the installation space and provides a flat installation surface based on the azimuth housing 1, so that there is no reserved space below the installation surface. The support bearing 8, the azimuth motor, the multi-stage resolver, and the bus ring are installed within the installation space. Specifically, in this example, the lower azimuth housing 3 cooperates with the azimuth cup-shaped component 2 to provide an installation reference and platform for the stator and rotor of the multi-stage resolver and the bus ring, forming a certain sealed space. The bottom of the azimuth housing 1 provides a flat installation surface 101 for the azimuth transmission device and the installation platform, and a sealing ring ensures that the entire azimuth transmission device is statically sealed relative to the installation platform. The azimuth housing 1 is completely exposed on the installation plane. In some specific applications, the main body of the azimuth housing 1 can be a casting with a diameter of Φ650×250 mm, and the interface flange size of the mounting surface is Φ750×22 mm. The azimuth housing 1 has a mounting interface through hole 102, which can be fixed to the mounting surface by 16 M16 screws. The azimuth housing is the main support of the azimuth transmission device, externally fixed to the mounting surface, and internally directly or indirectly supporting the bearing 8, the azimuth motor, the multi-stage resolver, and the stator part of the bus ring. In some specific examples, such as... Figure 3 As shown, the azimuth housing 1 is also provided with a weight reduction hole 104, a through hole 105 for mounting the azimuth bearing stator, and a stop 106 for the azimuth bearing stator.

[0035] The directional cup-shaped component 2 is the output shaft of the directional motor, which has a multi-stage stepped structure. The directional motor rotor 10, the multi-stage resolver rotor 12, and the busbar rotor 14 of the busbar are mounted on the output shaft.

[0036] Both the azimuth motor and the multi-stage resolver include corresponding stators and rotors, and the corresponding stators are installed in the installation space, corresponding to the positions of their respective rotors. In this example, the azimuth motor can be a split-type servo motor, including an azimuth motor rotor 10 and an azimuth motor stator 9. The multi-stage resolver also includes a multi-stage resolver stator and a multi-stage resolver rotor.

[0037] The busbar stator 13 of the busbar is fixedly installed on the lower housing 3. The busbar rotor 14 of the busbar is embedded in the stepped structure of the azimuth cup-shaped part 2, and the telecommunication cable is led out from the top of the busbar rotor and connected through the terminal block. Thus, all components of the azimuth transmission device are set in the installation space. The lower housing 3 is a flat installation surface. No installation and maintenance space needs to be reserved below the installation surface. The radar is installed externally.

[0038] The azimuth transmission device of this application embodiment forms an installation space with the azimuth housing and the azimuth cup-shaped component, and all components are set in the installation space. This provides a flat installation surface to the outside, so that there is no reserved space or maintenance space below the installation surface, and the radar can be installed externally. The system only needs to provide a suitable installation plane and interface, and the radar can be put into use.

[0039] In some embodiments, the azimuth motor stator 9 of the azimuth motor is mounted upward from the bottom of the azimuth housing 1, and is positioned by the outer circular surface of the azimuth motor stator 9 and the inner circular surface of the azimuth housing 1.

[0040] The azimuth motor rotor 10 is fixedly connected to the azimuth cup-shaped component 2, and is installed from the bottom upwards of the azimuth housing 1, with positioning based on the inner circular surface of the azimuth motor rotor 10 and the outer circular surface of the azimuth cup-shaped component 2. Specifically, as follows... Figure 1 As shown, the azimuth motor stator 9 can be fixedly connected to the azimuth housing by bolts. The azimuth motor stator 9 is installed from the bottom upward of the azimuth housing, and is positioned by the outer circular surface of the azimuth motor stator 9 and the inner circular surface of the azimuth housing. The bolts pass through the pre-drilled holes in the motor stator mounting flange from bottom to top and are fixedly connected to the pre-drilled threaded holes in the azimuth housing. The azimuth motor rotor 10 can be fixedly connected to the azimuth cup-shaped part 2 by bolts. The azimuth motor rotor 10 is installed from the bottom upward of the azimuth housing 1, and is positioned by the inner circular surface of the azimuth motor rotor 10 and the outer circular surface of the azimuth cup-shaped part 2. The bolts pass through the pre-drilled holes in the motor rotor mounting flange from bottom to top and are fixedly connected to the pre-drilled threaded holes in the azimuth cup-shaped part.

[0041] When the azimuth transmission device is working, it drives the azimuth cup-shaped component 2 to rotate the radar antenna or array as required.

[0042] In some embodiments, the multi-stage resolver includes a multi-stage resolver stator 11 and a multi-stage resolver rotor 12;

[0043] The multi-stage resolver stator 11 is fixedly connected to the lower housing 3 and positioned by a flange stop. The multi-stage resolver rotor 12 is fixedly connected to the lower end of the azimuth cup-shaped component 2 and positioned by the lower end face of the azimuth cup-shaped component 2. Alternatively, the fixed connection can be achieved using bolts.

[0044] In some embodiments, the directional cup-shaped component 2 is provided with a labyrinth boss, and the directional housing 1 is also provided with a matching labyrinth boss, so that the directional housing 1 and the directional cup-shaped component 2 can be installed in a labyrinth-type dynamic seal through the labyrinth boss, and can be rotatedly connected through the directional bearing.

[0045] In some embodiments, the outer surface of the azimuth cup-shaped component 2 is flush with the outer surface of the azimuth housing 1. A scale 7 is also provided at the joint of the labyrinth boss. The scale 7 is used to indicate the azimuth rotation angle of the transmission device and to enhance the dynamic seal of the rotating part of the azimuth transmission device. In this example, the sealing of the rotating part of the azimuth transmission device is achieved by a reinforced labyrinth. Compared with a traditional labyrinth, this example increases the height of the outer side of the labyrinth boss to form a dynamic sealing labyrinth structure 103. The scale 7 for reading the azimuth rotation angle is installed at the upper and lower joints of the labyrinth, with a certain gap, further enhancing the dynamic sealing and waterproof capability of the azimuth transmission device. In some specific applications, reinforcing ribs can also be provided in the available space inside the azimuth housing.

[0046] In this example, the azimuth motor and multi-stage resolver are directly mounted on a shaft. The azimuth cup-shaped component 2 serves as the output shaft of the azimuth motor, capable of continuous 360° rotation. A busbar rotor is mounted at the bottom of the azimuth cup-shaped component, the multi-stage resolver rotor is mounted at the lower part, the azimuth motor rotor is mounted in the middle, and the upper inner side is fixed to the azimuth bearing rotor with screws. A labyrinth boss is designed on the upper outer side, which, in conjunction with the labyrinth boss pre-reserved in the azimuth housing, provides waterproofing. This transmission method is beneficial for the stability and accuracy of the servo system; the moment of inertia referred to the load shaft is small, and the direct shaft drive method results in a compact and lightweight structure.

[0047] In some embodiments, the support bearing 8 includes a bearing stator and a bearing rotor; the bearing stator is fixedly connected to the azimuth housing 1; and the bearing rotor is fixedly connected to the azimuth cup-shaped component 2. In a specific example, the support bearing 8 is cleaned and lubricated before assembly. The stator of the support bearing 8 is fixedly connected to a pre-installed threaded sleeve on the upper end of the azimuth housing by bolts. The bolts pass through the through holes of the azimuth bearing rotor from top to bottom and are tightened onto the threaded sleeve installed on the azimuth housing. The threaded sleeve is locked by a locating pin to prevent loosening. The rotor of the support bearing 8 is fixedly connected to the azimuth cup-shaped component by bolts. The bolts pass through the through holes of the azimuth cup-shaped component from top to bottom and are tightened onto the threaded holes on the rotor of the support bearing 8.

[0048] With this design, the load driven by the azimuth transmission device is sequentially transmitted through the azimuth cup-shaped part 2 and the azimuth bearing rotor to the azimuth bearing stator, the azimuth housing, and the mounting surface.

[0049] In some embodiments, a socket 16 is further provided on the outer surface of the azimuth housing 1. An electrical socket for the radar antenna or array and antenna mount is installed on one side of the azimuth housing 1.

[0050] In some embodiments, the busbar rotor 14 is embedded in the internal space of the stepped structure of the azimuth cup-shaped member 2, and a telecommunications cable is led out from the top of the busbar rotor and connected through a junction box. The junction box is fixed to the upper inner side of the azimuth cup-shaped member, and a junction box 15 is also provided on the busbar rotor 14.

[0051] In some embodiments, the orientation transmission device further includes a sealing ring; the sealing ring is disposed in a groove on one side of the mounting surface of the orientation housing 1. The seal between the orientation transmission device and the mounting surface is an open seal. To ensure the accuracy of the planar installation, a sealing ring is used for sealing in this example. The sealing ring is located inside a series of mounting holes to ensure a tight fit between the mounting surfaces.

[0052] The azimuth transmission device of this application can rotate continuously in azimuth, search for targets according to a predetermined pattern, accurately point to the target, follow the target's movement, and accurately measure the target's angular position through an angular position sensor. This azimuth transmission device has a compact structure, better vibration and impact resistance, and the use of an AC brushless torque motor can greatly improve the reliability of the device.

[0053] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0054] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0055] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims. All of these forms are within the protection scope of this application.

Claims

1. A compact, fully external, maintenance-free orientation transmission device, characterized in that, include: Orientation housing (1), orientation cup-shaped part (2), lower orientation housing (3), orientation motor, support bearing (8), multi-stage resolver and busbar ring; The directional housing (1) is installed in conjunction with the directional cup-shaped component (2) and forms an installation space based on the directional cup-shaped component (2); The lower housing (3) encloses the installation space and provides a flat installation surface to the outside based on the azimuth housing (1) so that there is no reserved space below the installation surface. The installation space is equipped with the support bearing (8), the azimuth motor, the multi-stage resolver and the bus ring. The directional cup-shaped component (2) is the output shaft of the directional motor, which has a multi-stage stepped structure. The directional motor rotor (10), the multi-stage resolver rotor (12), and the busbar rotor (14) of the busbar are mounted on the output shaft. Both the azimuth motor and the multi-stage resolver include corresponding stators and rotors, and the corresponding stators are installed in the mounting space, corresponding to the positions of their respective rotors; and The busbar stator (13) of the busbar is fixedly installed on the lower housing (3), and the busbar rotor (14) of the busbar is embedded in the stepped structure of the directional cup-shaped part (2); The azimuth housing (1) is provided with a labyrinth boss, so as to form a labyrinth dynamic seal installation with the azimuth cup-shaped part (2) through the labyrinth boss, and to be rotatably connected through the azimuth bearing; A scale (7) is also provided at the joint of the labyrinth boss. The scale (7) is used to indicate the orientation rotation angle of the transmission device and to enhance the dynamic seal of the rotating part of the orientation transmission device.

2. The compact, fully external, maintenance-free orientation transmission device as described in claim 1, characterized in that, The azimuth motor stator (9) of the azimuth motor is installed from the bottom of the azimuth housing (1) upwards, and is positioned by the outer circular surface of the azimuth motor stator (9) and the inner circular surface of the azimuth housing (1); The azimuth motor rotor (10) is fixedly connected to the azimuth cup-shaped part (2) and is installed from the bottom of the azimuth housing (1) upwards, with the inner circular surface of the azimuth motor rotor (10) and the outer circular surface of the azimuth cup-shaped part (2) for positioning; When the azimuth transmission device is working, the driving azimuth cup-shaped component (2) drives the radar antenna or array to rotate as required.

3. The compact, fully external, maintenance-free orientation transmission device as described in claim 2, characterized in that, The multi-stage resolver includes a multi-stage resolver stator (11) and a multi-stage resolver rotor (12); The multi-stage resolver stator (11) is fixedly connected to the lower housing (3) and positioned by a flange stop; The multi-stage resolver rotor (12) is fixedly connected to the lower end of the azimuth cup-shaped component (2) and positioned by the lower end face of the azimuth cup-shaped component (2).

4. The compact, fully external, maintenance-free orientation transmission device as described in claim 1, characterized in that, The supporting bearing (8) includes a bearing stator and a bearing rotor; The bearing stator is fixedly connected to the orientation housing (1); The bearing rotor is fixedly connected to the oriented cup-shaped component (2); The load driven by the azimuth transmission device is sequentially transmitted to the bearing stator, the azimuth housing, and the mounting surface through the azimuth cup-shaped part (2) and the bearing rotor.

5. The compact, fully external, maintenance-free orientation transmission device as described in claim 1, characterized in that, The outer surface of the oriented cup-shaped component (2) is flush with the outer surface of the oriented housing (1).

6. The compact, fully external, maintenance-free orientation transmission device as described in claim 5, characterized in that, The outer surface of the orientation housing (1) is also provided with a socket (16).

7. The compact, fully external, maintenance-free orientation transmission device as described in claim 1, characterized in that, The busbar rotor (14) is embedded in the stepped structure of the directional cup-shaped part (2) and is flush with the step. A terminal block (15) is also provided on the busbar rotor (14).

8. The compact, fully external, maintenance-free orientation transmission device as described in claim 1, characterized in that, The orientation transmission device also includes a sealing ring; The sealing ring is disposed in the groove on one side of the mounting surface of the oriented housing (1).

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