Ship-borne or outdoor fixed servo unit

Abstract

The utility model discloses a shipborne or outdoor fixed servo unit, which comprises a base, an outer sealing plate arranged at the bottom of the base and an installation bedplate rotationally arranged at the upper part of the base, a rotating mechanism is arranged in the base, and the rotating mechanism is connected with the installation bedplate and is used for driving the installation bedplate to rotate. The rotating mechanism comprises a hollow main shaft connected with the mounting bedplate, a bearing matched with the hollow main shaft and a driving motor connected with the hollow main shaft, the bearing is mounted on the base, and the driving motor is mounted on the base. The system has the advantages of compact structure, powerful function, high reliability, easy maintenance and the like, and is suitable for ship-borne and outdoor fixed use scenes. The problems that an existing servo unit is short in service life and low in reliability are solved.

Description

Technical Field

[0001] This utility model relates to the field of servo rotary table equipment, specifically a servo unit for shipborne or outdoor fixed use. Background Technology

[0002] Servo units used on shipboard or outdoor fixed installations are subject to significant cable-borne and near-field interference. Additionally, parasitic oscillations in the PWM voltage of power devices, radiated as high-frequency electromagnetic waves through heat sinks and motor cables, generate substantial radiated interference. Furthermore, electromagnetic interference, conducted interference, and electromagnetic noise from the motor system all significantly impact the servo unit control system. Shipboard conditions involve significant vibrations, placing high demands on the structural stability of the servo unit's mechanical platform. Ensuring stable operation of the servo unit under harsh natural conditions is paramount. Shipboard or outdoor conditions are prone to unforeseen circumstances, necessitating enhanced electrical system protection. Designing the servo unit structure according to normal conditions results in excessively long repair and maintenance times, failing to meet shipboard requirements. This is particularly problematic during training or mission execution, where prolonged maintenance can severely impact training effectiveness or even prevent mission completion. Utility Model Content

[0003] The purpose of this invention is to provide a servo unit for shipboard or outdoor fixed use, in order to solve the problems of short service life and low reliability of existing servo units.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a shipborne or outdoor fixed servo unit, comprising a base, an outer sealing plate disposed at the bottom of the base, and a mounting plate rotatably disposed on the upper part of the base. The base is provided with a rotating mechanism, which is connected to the mounting plate and is used to drive the mounting plate to rotate. The rotating mechanism includes a hollow spindle connected to the mounting plate, a bearing cooperating with the hollow spindle, and a drive motor connected to the hollow spindle. The bearing is mounted on the base, and the drive motor is mounted on the base.

[0005] As a further improvement to the above technical solution:

[0006] The base includes a first outer mounting platform, a second outer mounting platform, a first inner mounting platform, a second inner mounting platform, and a third inner mounting platform. The first outer mounting platform is connected to a mounting plate and is provided with a dynamic sealing ring. The second outer mounting platform is connected to an outer sealing plate and is provided with a static sealing ring. The first inner mounting platform is connected to a bearing, and the second inner mounting platform is connected to a drive motor.

[0007] A spindle slip ring is provided inside the hollow spindle.

[0008] An inner sealing plate is provided on the third inner mounting platform.

[0009] The base is equipped with a mechanical locking mechanism, and the mounting plate is provided with a limit hole. The mechanical locking mechanism extends into the limit hole to lock the mounting plate.

[0010] The mounting platform is equipped with a right-angle prism and an electrical connector.

[0011] The base is equipped with a socket panel and a control panel.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] High integration: The servo unit integrates components such as drivers, power supplies, and control boards inside the mechanical table body, forming an integrated turntable with a compact structure that is easy to install and maintain.

[0014] Multi-functional motion modes: The mechanical stage can support multiple motion modes such as 360° peripheral scanning, fan scanning and fixed angle mode to meet the needs of different scenarios.

[0015] Excellent corrosion resistance: The base is made of cast aluminum alloy ZL114A, which has good mechanical properties and corrosion resistance, making it suitable for shipboard and outdoor environments.

[0016] High-efficiency transmission: It adopts a DC brushless torque motor as the drive motor, which has the advantages of fast response speed, large torque and smooth operation.

[0017] Waterproof sealing design: Through dynamic and static sealing design, it effectively prevents external rainwater and other media from corroding internal parts and improves the reliability of the servo unit.

[0018] Smooth signal transmission: Built-in spindle slip ring and RF joint enable microwave signal transmission and power supply for the payload antenna, solving the wiring problems caused by continuous rotation.

[0019] Safe transportation: The mechanical locking mechanism ensures that the turntable's shaft system does not rotate arbitrarily during transportation, thus improving transportation safety.

[0020] Precise control: The servo control system receives user commands in real time to achieve precise control of the mechanical platform, meeting the needs of various complex scenarios.

[0021] Easy to maintain: The integrated design makes maintenance easier and reduces repair costs.

[0022] In summary, the servo unit of this invention has advantages such as compact structure, powerful functions, high reliability, and easy maintenance, making it suitable for shipboard and outdoor fixed applications. It solves the problems of short service life and low reliability of existing servo units. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a top view of the structure of this utility model;

[0025] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0026] Figure 4 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point BB;

[0027] Figure 5 This is a schematic diagram of the structure of this utility model without the mounting plate;

[0028] Figure 6 This is a schematic diagram of the mounting platform structure of this utility model;

[0029] Figure 7 This is a schematic diagram of the base structure of this utility model.

[0030] Reference numerals: 1. Base; 11. First outer mounting platform; 111. Dynamic seal ring; 12. Second outer mounting platform; 121. Static seal ring; 13. First inner mounting platform; 14. Second inner mounting platform; 15. Third inner mounting platform; 16. Socket panel; 17. Control panel; 2. Outer sealing plate; 3. Mounting platform; 31. Right-angle prism; 32. Electrical connector; 41. Hollow spindle; 42. Bearing; 43. Drive motor; 44. Spindle slip ring; 45. Inner sealing plate; 5. Mechanical locking mechanism. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating orientation or position, are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] This embodiment describes a shipborne or outdoor fixed servo unit, which mainly consists of a mechanical platform and a servo control system. The mechanical platform is the final actuator, used to mount the user payload antenna and provide rotational motion. The mechanical platform is designed as a single-axis vertical structure. The circular platform on the upper end of the main shaft is used to mount the user payload, enabling the user payload to perform various movements as required, such as 360° circumferential scan, sector scan, and fixed angle modes. The servo control system is the central hub that receives user commands in real time and controls the mechanical platform to complete servo movements. The drivers, power supply, control board, and other components in the servo control system are all integrated inside the mechanical platform, forming an integrated turntable. This section mainly describes the structure of the mechanical platform, such as... Figures 1 to 7 As shown, the mechanical platform includes a base 1, an outer sealing plate 2 disposed at the bottom of the base 1, and a mounting plate 3 rotatably disposed on the upper part of the base 1. A rotating mechanism is disposed inside the base 1 and is connected to the mounting plate 3 to drive the mounting plate 3 to rotate.

[0036] The mounting platform 3 is equipped with a right-angle prism 31 and an electrical connector 32. The electrical connector 32 is connected to the payload antenna and is used for power supply and signal transmission to the payload antenna. The right-angle prism 31 is used as a zero-position reference for the turntable and as a special marker for the integrated optical frequency equipment.

[0037] The base 1 is equipped with a socket panel 16 and a control panel 17 for power supply and debugging control. The base 1 includes a first external mounting platform 11, a second external mounting platform 12, a first internal mounting platform 13, a second internal mounting platform 14, and a third internal mounting platform 15. The base 1 is made of ZL114A cast aluminum alloy material, which has good casting process performance, good mechanical properties, corrosion resistance, and good low-temperature toughness.

[0038] The rotating mechanism includes a hollow spindle 41 connected to the mounting plate 3, a bearing 42 that mates with the hollow spindle 41, and a drive motor 43 connected to the hollow spindle 41. The bearing 42 is mounted on the base 1, and the drive motor 43 is mounted on the base 1. The drive motor 43 is a DC brushless torque motor. The hollow spindle 41 is made of corrosion-resistant, high-quality 20Cr13 stainless steel.

[0039] The first outer mounting platform 11 is connected to the mounting plate 3, and a dynamic sealing ring 111 is provided on the first outer mounting platform 11. The second outer mounting platform 12 is connected to the outer sealing plate 2, and a static sealing ring 121 is provided on the second outer mounting platform 12. The first inner mounting platform 13 is connected to the bearing 42, and the second inner mounting platform 14 is connected to the drive motor 43. An inner sealing plate 45 is provided on the third inner mounting platform 15. The dynamic and static seals are designed to achieve a sealing effect and prevent external media such as rainwater from corroding the internal parts.

[0040] A spindle slip ring 44 is installed inside the hollow spindle 41. A high-frequency radio frequency (RF) joint is installed inside the spindle slip ring 44 for microwave signal transmission of the load. The servo axis system requires continuous 360° rotation, while the antenna load needs external power and communication with the servo unit. To solve the wiring problems caused by continuous rotation, an RF joint and a conductive slip ring are installed inside the servo unit. The servo slip ring is a composite slip ring, i.e., an RF joint is added in the middle of the electrical slip ring. The electrical slip ring powers the antenna load, and the RF joint is used for microwave transmission of the antenna load.

[0041] The base 1 is equipped with a mechanical locking mechanism 5, and the mounting plate 3 is provided with a limit hole. The mechanical locking mechanism 5 extends into the limit hole to lock the mounting plate 3. To ensure the turntable's transportation safety and prevent the shaft system from rotating arbitrarily, the servo unit shaft system is designed with a mechanical locking device. By rotating the handwheel, the locking rod is inserted into the locking seat to lock the turntable.

[0042] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A servo unit for shipborne or outdoor fixed use, characterized in that, The device includes a base (1), an outer sealing plate (2) disposed at the bottom of the base (1), and a mounting plate (3) rotatably disposed on the upper part of the base (1). The base (1) is provided with a rotating mechanism, which is connected to the mounting plate (3) and is used to drive the mounting plate (3) to rotate. The rotating mechanism includes a hollow spindle (41) connected to the mounting plate (3), a bearing (42) cooperating with the hollow spindle (41), and a drive motor (43) connected to the hollow spindle (41). The bearing (42) is mounted on the base (1), and the drive motor (43) is mounted on the base (1).

2. The shipborne or outdoor fixed servo unit according to claim 1, characterized in that: The base (1) includes a first outer mounting platform (11), a second outer mounting platform (12), a first inner mounting platform (13), a second inner mounting platform (14), and a third inner mounting platform (15). The first outer mounting platform (11) is connected to the mounting plate (3). A dynamic sealing ring (111) is provided on the first outer mounting platform (11). The second outer mounting platform (12) is connected to the outer sealing plate (2). A static sealing ring (121) is provided on the second outer mounting platform (12). The first inner mounting platform (13) is connected to the bearing (42). The second inner mounting platform (14) is connected to the drive motor (43).

3. The shipborne or outdoor fixed servo unit according to claim 2, characterized in that: A spindle slip ring (44) is provided inside the hollow spindle (41).

4. The shipborne or outdoor fixed servo unit according to claim 3, characterized in that: An inner sealing plate (45) is provided on the third inner mounting platform (15).

5. The shipborne or outdoor fixed servo unit according to claim 4, characterized in that: The base (1) is provided with a mechanical locking mechanism (5), and the mounting plate (3) is provided with a limit hole. The mechanical locking mechanism (5) extends into the limit hole to lock the mounting plate (3).

6. The shipborne or outdoor fixed servo unit according to claim 5, characterized in that: The mounting platform (3) is provided with a right-angle prism (31) and an electrical connector (32).

7. The shipborne or outdoor fixed servo unit according to claim 6, characterized in that: The base (1) is provided with a socket panel (16) and a control panel (17).

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