A highly integrated two-axis turntable

Abstract

This invention provides a highly integrated two-axis turntable, relating to the field of turntable technology. The turntable includes an azimuth drive device; a turntable assembly; and a pitch drive device. The pitch drive device includes two symmetrically arranged power arms and data arms mounted on the turntable assembly. A high-frequency enclosure for mounting an antenna array is disposed between the power arms and data arms. The high-frequency enclosure is rotatably connected to the corresponding power arms and data arms on both sides. An external circulation channel and an internal circulation channel are provided within the turntable assembly. The internal circulation channel houses a cooling system. This invention, combining the pitch drive device and the high-frequency enclosure assembly, forms a complete air-cooled circulation channel, achieving independent heat dissipation for the turntable. This meets the heat dissipation requirements of different antenna arrays and related equipment within the high-frequency enclosure, improving the turntable's applicability.

Description

Technical Field

[0001] This invention relates to the field of turntable technology, and in particular to a highly integrated two-axis turntable. Background Technology

[0002] A two-axis turntable (hereinafter referred to as the turntable) is an electromechanical complex used to carry loads and meet the requirements of its azimuth and pitch rotation range, rotation speed and acceleration, servo control accuracy, and other indicators. Conventional turntables often have separate power distribution boxes, communication modules, servo systems, and navigation systems, lacking integrated design and resulting in an excessive number of devices. While existing high-adaptability two-axis turntables feature internal cooling water circulation pipes to meet the heat dissipation requirements of equipment with high heat dissipation and heat density, such as active phased array radars, they lack integrated power distribution boxes and water-cooling modules, requiring external power distribution boxes and cooling cabinets, further increasing the total number of devices. Furthermore, conventional turntables are often designed specifically for a single load, meaning one type of turntable typically corresponds to only one type of load, lacking universal and modular design, particularly the integration of internal cooling systems to adapt to various load installation requirements and different applications and mounting platforms. Existing technologies also disclose an integrated universal azimuth and pitch two-axis turntable, which, through its integrated design, can adapt to different azimuth, pitch transmission ratios, and pitch limit angles, and has a certain degree of adaptability. However, since it does not have an integrated heat dissipation system, it cannot meet the installation requirements of equipment with high heat dissipation, thus limiting its application. Summary of the Invention

[0003] To address the shortcomings of the prior art, this invention provides a highly integrated two-axis turntable. This turntable integrates an air-cooled heat dissipation environmental control device, simplifies external interfaces, reduces the number of devices on the turntable, and meets the installation requirements of various types of antenna arrays, such as tracking radar, measurement radar, and reconnaissance and jamming equipment. Based on the installation requirements and heat dissipation requirements of different antenna arrays, a matching high-frequency box device is designed as the antenna array mounting platform, and then assembled with the turntable. This shortens the design cycle and reduces production costs. This invention can be widely applied to the assembly of different types of antenna mounts.

[0004] The purpose of this invention is to provide a highly integrated two-axis rotary table, comprising:

[0005] Orientation transmission device;

[0006] A turntable device is mounted on the orientation transmission device and is rotatably connected to the orientation transmission device;

[0007] A pitch transmission device is mounted on the turntable device. The pitch transmission device includes two symmetrically arranged power arms and data arms, which are mounted on the turntable device. A high-frequency box device for mounting the antenna array is provided between the power arms and data arms. The two sides of the high-frequency box device are rotatably connected to the corresponding power arms and data arms.

[0008] The turntable device is equipped with an external circulation channel and an internal circulation channel;

[0009] One end of the external circulation channel is an air supply outlet, and the other end is a return air outlet;

[0010] Both the power arm and the data arm are equipped with a first air duct.

[0011] The air supply outlet is connected to the first air duct inside the power arm, the return air outlet is connected to the first air duct inside the data arm, and the inside of the high-frequency box device is connected to the first air duct inside the corresponding power arm and data arm through the second air ducts set on both sides.

[0012] The external circulation channel is equipped with a first air supply component;

[0013] The inner circulation channel is equipped with a refrigeration system. The refrigeration system outputs a refrigerant to the outer circulation channel. Under the action of the first air supply component, the air in the outer circulation channel is cooled by the refrigerant and then output from the air outlet.

[0014] The orientation transmission device includes a first driving device for driving the turntable device to rotate;

[0015] The pitch transmission device also includes a second drive device for driving the high-frequency box device to pitch and rotate.

[0016] Preferably, the orientation transmission device further includes:

[0017] Orientation base, which is a cylindrical structure;

[0018] The azimuth main shaft is vertically set inside the azimuth base and is rotatably connected to the interior of the azimuth base through a connector. Its top extends above the top surface of the azimuth base and is connected to the turntable device.

[0019] The first driving device is disposed in the azimuth base, and its output shaft is connected to the azimuth main shaft through an azimuth reducer;

[0020] An inspection hole is provided on one side of the azimuth base, and an external interface plate is provided on the cover of the inspection hole.

[0021] Preferably, the orientation base is further provided with a first encoder for recording rotation parameters; a data pinion is provided on the shaft of the first encoder;

[0022] A large data gear is fitted onto the azimuth main shaft; the large data gear is connected to the small data gear in a transmission manner.

[0023] Preferably, the turntable device further includes:

[0024] An azimuth turntable, the bottom of which is disposed on the azimuth main axis, wherein the azimuth turntable includes a small azimuth turntable or a large azimuth turntable;

[0025] The azimuth turntable has a hollow structure inside, which contains the outer circulation channel and the inner circulation channel.

[0026] The internal circulation channel is provided with an air inlet at one end and an air outlet at the other end.

[0027] The power arm is connected to two symmetrical locations on the top surface of the azimuth turntable.

[0028] Air guide holes are provided at the connection points between the top surface of the azimuth turntable and the power arm and the data arm, respectively.

[0029] One air guide hole is connected to one end of the external circulation channel, and the other air guide hole is connected to the other end of the external circulation channel;

[0030] Each of the aforementioned air guide holes is connected to the corresponding first air duct.

[0031] Preferably, the refrigeration system includes an evaporator pipe disposed within the external circulation channel, and a compressor, a condenser, and an expansion valve disposed within the external circulation channel;

[0032] The evaporator pipe, compressor, condenser, and expansion valve are connected sequentially through the pipe body, and the expansion valve is then connected to the evaporator pipe to form an internal circulation; wherein, the pipe body contains the refrigerant, and the pipe body is equipped with a pump for transporting the refrigerant;

[0033] The refrigerant is transferred to the compressor for compression and heating, and then transferred to the condenser for cooling. After cooling, it passes through the expansion valve to form a low-temperature refrigerant. Finally, the low-temperature refrigerant is transferred to the evaporator pipe. Under the action of the first air supply component, the refrigerant in the evaporator pipe releases cold air, and at the same time, the heat transferred from the return air vent is transferred to the compressor again through the refrigerant to enter the next refrigeration cycle.

[0034] The condenser includes a second air supply component that supplies air to the condenser, transferring heat from the air inlet to the air in the internal circulation channel for release, and then exhausting it from the air outlet.

[0035] Preferably, a first sealing ring is fitted on the top edge of the azimuth base, and a second sealing ring is provided at the bottom of the azimuth turntable at the position corresponding to the first sealing ring, forming a labyrinth structure between the first sealing ring and the second sealing ring;

[0036] An azimuth bushing is provided on the top of the azimuth base;

[0037] The second sealing ring has a first oil seal provided on its inner side via a pressure plate, and the first oil seal makes frictional contact with the directional bushing for sealing.

[0038] Preferably, the power arm and data arm have hollow internal structures, each forming a first air duct;

[0039] The power arm is rotatably connected to one side of the high-frequency box device via a power shaft;

[0040] The data arm is rotatably connected to the other side of the high-frequency box device via a data shaft;

[0041] One end of the power shaft extends into the interior of the power arm and is rotatably connected to the power arm via a connector; the other end of the power shaft is connected to the high-frequency box device.

[0042] One end of the data shaft extends into the inside of the data arm and is rotatably connected to the data shaft via a connector; the other end of the data shaft is connected to the high-frequency box device.

[0043] The second drive device is located inside the power arm, and its output shaft is connected to the power shaft via a pitch reducer.

[0044] Preferably, both the power shaft and the data shaft are provided with a second air duct along the axial direction, which connects to the interior of the high-frequency box device.

[0045] Preferably, a second encoder is connected to one end of the data shaft located within the data arm.

[0046] Preferably, the data arm is provided with a mechanical limiter for limiting the data axis.

[0047] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0048] This invention provides a highly integrated two-axis rotary table, specifically achieved through the following technical solution:

[0049] (1) Overall design of the turntable. The power distribution box, communication module, servo system, navigation system, environmental control device, attitude sensor, television combination and telescope are integrated into the turntable to simplify the external interface of the turntable. It is designed with 1 power input and 5 network ports. By connecting to the computer, the turntable can complete the servo control, environmental control device control and antenna array transmission and reception, etc., without the need for external power distribution cabinet, display and control console, servo cabinet and processing cabinet, etc., reducing the amount of equipment in the whole machine. At the same time, the turntable is divided into three parts: azimuth drive device, turntable device and pitch drive device. The azimuth drive device and pitch drive device are used as basic modules. The turntable device is designed with two different width sizes of azimuth turntable as optional modules. This allows for the modular assembly of two sizes of turntable to adapt to the installation requirements of high frequency box devices of different sizes and improve the versatility of the turntable.

[0050] (2) Structural Design of the Environmental Control Device. The internal and external circulation channels of the environmental control device adopt a spatially staggered arrangement, integrating the air inlets and outlets of the internal and external circulation into a single unit of the environmental control device to meet the installation requirements of the turntable. The external circulation channel is arranged left and right, with the left side being the air supply outlet and the right side being the return air outlet. The air supply outlet provides air at a certain temperature and flow rate, which enters the high-frequency box device through the power arm and pitch power shaft of the pitch transmission device. The high-frequency box is then used to dissipate heat from the required cooling equipment by the relay fan. The heated air passes through the data arm and pitch data shaft and finally returns to the environmental control device through the return air outlet, thus repeating the cycle. The internal circulation channel is arranged front and back, with the front side being the air inlet and the rear side being the air outlet. At the same time, a refrigerant is reasonably selected to improve the operating temperature range of the environmental control device, and anti-corrosion design and airtightness design of the internal circulation channel and condensation circulation channel are implemented to meet the requirements for use outside the cabin.

[0051] Compared with the prior art, the highly integrated two-axis rotary table disclosed in this invention has the following advantages:

[0052] (1) Integrated, universal and modular design of the turntable. The power distribution box, communication module, servo system, navigation system, environmental control device, attitude instrument, TV combination and telescope are integrated into the turntable, simplifying the external interface, reducing the total number of equipment, and reducing transportation and installation costs; the azimuth drive device and pitch drive device are used as basic modules, and the turntable device is used as an optional module. Two different width sizes of azimuth turntable are designed, and two width sizes of turntable devices can be assembled to improve the versatility and applicability of the turntable; when designing the antenna mount scheme, only the high frequency box device scheme needs to be designed according to the load requirements. After determining the shape scheme of the high frequency box device, the turntable device with matching size is selected for modular assembly, which can meet different installation requirements, adapt to various usage environments, reduce the design workload and reduce production and processing costs.

[0053] (2) The turntable integrates an air-cooled heat dissipation environmental control device. By designing the environmental control device as an integrated unit, the internal and external circulation channels are arranged in a staggered spatial arrangement. The air inlets and outlets of the internal and external circulation are integrated into a single unit of the environmental control device to meet the installation requirements of the turntable. The pitch transmission device and the high-frequency box device form a complete air-cooled circulation channel to achieve independent heat dissipation of the turntable and meet the heat dissipation requirements of equipment with large heat dissipation and high heat density under different loads. A partition is set inside the turntable device, and four openings are designed for wiring on both sides of the pitch power arm and data arm and the air inlet and outlet of the external circulation of the environmental control device. After wiring, the wiring holes are sealed to prevent the cold air of the external circulation of the environmental control device from entering the return air port through the wiring holes and causing a short circuit in the turntable device.

[0054] (3) Inertia Optimization Design. The main structure of the turntable (azimuth base, large azimuth turntable, small azimuth turntable, power arm, and data arm) all adopt a symmetrical structure. At the same time, in addition to meeting the usage and maintainability requirements, the reasonable arrangement of each component minimizes the offset between the turntable's center of gravity and the azimuth rotation axis, i.e., reduces the azimuth rotation inertia. For example, the power distribution box, communication module, servo system, and navigation system are arranged around the azimuth transmission device and remain stationary; the environmental control device is arranged in the middle of the turntable device. The transmission chains in the pitch transmission device are all axisymmetric structural components, which have little impact on the pitch center of gravity position and are mainly determined by the load scheme.

[0055] (4) Maintainability Design. The azimuth transmission device has maintenance windows designed around the azimuth base and at the bottom. Without disassembling the whole machine, the transmission chain, power distribution box, servo system, communication system and bus ring can be repaired through the maintenance windows. The turntable device has guide rails on both sides to facilitate its installation and removal in the turntable device. The back is designed with positioning pins to cooperate with the pin seat to ensure that the environmental control device is installed in place. Finally, the screws on the front panel of the environmental control device are tightened in place. The turntable device has maintenance windows on the back and sides. After connecting and disconnecting the power supply line and control line of the environmental control device through the back maintenance window, the environmental control device can be disassembled for maintenance. The side maintenance windows are used for cable arrangement and sorting. In addition, the refrigerant charging window of the environmental control device is located on the outside, so the environmental control device can be repaired independently. The pitch transmission device has maintenance windows on the back and sides. The back maintenance window is used to repair the motor, reducer transmission chain and other equipment. The side maintenance windows are used for maintenance and inspection of the transmission gears.

[0056] (5) Turntable Mechanical Protection Structure Design. Turntables generally use a self-locking mechanism via a motor de-energizing brake to prevent vibration, impact, or other factors during transport from causing movement of the antenna mount's azimuth and pitch directions, thus preventing collisions or other problems. In addition to the motor self-locking mechanism, this turntable adds an azimuth zero-position locking mechanism and a pitch zero-position locking mechanism. These mechanisms use locking pins that engage with corresponding pin holes to provide protection during turntable transport. Simultaneously, due to the limited range of pitch working angles (generally...),... To prevent its rotation from exceeding the limit and causing damage to the circuit or equipment, a mechanical limiter is added to limit the pitch angle range (generally). When designing the high-frequency box device, the position of the stop block should be adjusted according to actual needs. Attached Figure Description

[0057] Figure 1 Axonometric drawing of the turntable;

[0058] Figure 2 Isometric views of two optional modules for the turntable device;

[0059] Figure 3 This is a main sectional view of the orientation transmission device;

[0060] Figure 4 Left sectional view of the orientation transmission device and turntable device;

[0061] Figure 5 This is a top sectional view of the turntable device;

[0062] Figure 6 This is a front sectional view of the pitch transmission device. Detailed Implementation

[0063] The following describes several specific embodiments of the present invention in detail, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0064] The purpose of this invention is to provide a highly integrated two-axis turntable, comprising three parts: an azimuth drive device, a turntable device, and a pitch drive device. The turntable integrates an air-cooled heat dissipation environmental control device, i.e., a cooling system, simplifying external interfaces and reducing the number of devices on the turntable. It meets the installation requirements of various types of antenna arrays, such as tracking radar, measurement radar, and reconnaissance and jamming equipment. Based on the installation requirements and heat dissipation requirements of different antenna arrays, a matching high-frequency enclosure device is designed as the antenna array mounting platform, and then assembled with the turntable. This shortens the design cycle and reduces production costs. This invention can be widely applied to the assembly of different types of antenna mounts.

[0065] To achieve the above objectives, see Figures 1-6 As shown, a highly integrated two-axis turntable includes an orientation transmission device, a turntable device, and a pitch transmission device.

[0066] The turntable device is mounted on the azimuth drive device and is rotatably connected to the azimuth drive device; the pitch drive device is mounted on the turntable device, and the pitch drive device includes two symmetrically arranged power arms 3-1 and data arms 3-10, which are mounted on the turntable device. A high-frequency box device 4 for mounting the antenna array is arranged between the power arms 3-1 and the data arms 3-10; the two sides of the high-frequency box device 4 are rotatably connected to the corresponding power arms 3-1 and data arms 3-10.

[0067] The turntable device is equipped with an external circulation channel and an internal circulation channel; one end of the external circulation channel is an air supply outlet, and the other end is a return air outlet 2-28; both the power arm 3-1 and the data arm 3-10 are equipped with a first air duct; the air supply outlet is connected to the first air duct in the power arm 3-1, and the return air outlet is connected to the first air duct in the data arm 3-10; the high-frequency box device 4 is connected to the first air duct in the corresponding power arm 3-1 and data arm 3-10 through second air ducts set on both sides; a first air supply component is provided in the external circulation channel;

[0068] The inner circulation channel is equipped with a refrigeration system. The refrigeration system outputs a refrigerant to the outer circulation channel. Under the action of the first air supply component, the air in the outer circulation channel is cooled by the refrigerant and then output from the air outlet.

[0069] The azimuth transmission device includes a first drive device for driving the turntable device to rotate; the pitch transmission device also includes a second drive device for driving the high-frequency box device 4 to pitch.

[0070] The turntable provided by this invention uses a turntable device to set up an outer circulation channel and an inner circulation channel. The outer circulation channel is connected to the first air duct of the power arm and also to the high-frequency box device. Simultaneously, the high-frequency box device is connected to the first air duct inside the data arm. The outer circulation channel forms an outer circulation system with the high-frequency box device via the first air duct. A cooling system located in the inner circulation channel then transfers the cooling medium to the outer circulation channel. Under the action of the first air supply component, the equipment inside the high-frequency box device in the entire outer circulation system is circulated and cooled. The inner circulation channel cools the air in the outer circulation channel, thereby realizing the repeated circulation of the cooling medium from the inner circulation channel to the outer circulation channel, cooling the equipment inside the high-frequency box device.

[0071] In order to realize the transmission between the azimuth transmission device and the turntable device, the azimuth transmission device also includes an azimuth base 1-1 and an azimuth main shaft 1-15.

[0072] The azimuth base 1-1 is a cylindrical structure; the azimuth main shaft 1-15 is vertically arranged inside the azimuth base 1-1 and is rotatably connected to the interior of the azimuth base 1-1 through a connector, and its top extends above the top surface of the azimuth base 1-1 and is connected to the turntable device; the first drive device is arranged inside the azimuth base 1-1, and its output shaft is connected to the azimuth main shaft 1-15 through the azimuth reducer 1-4; therefore, the first drive device drives the azimuth main shaft 1-15 to rotate, thereby driving the turntable device to rotate.

[0073] To further realize the rotation of the turntable device, a power pinion 1-13 is provided on the output shaft of the azimuth reducer 1-4, and a power gear 1-14 is provided on the azimuth main shaft 1-15. The power pinion 1-13 and the power gear 1-14 are meshed and connected; a locking nut 1-16 is also provided on the azimuth main shaft 1-15.

[0074] The azimuth spindle 1-15 is rotatably connected to the azimuth base 1-1 via the main bearing 1-17 at the upper end and the auxiliary bearing 1-19 at the lower end.

[0075] It should be noted that the main bearing 1-17 is located at the top of the azimuth base 1-1 and is connected to the inner wall of the top of the azimuth base 1-1 of the cylindrical structure through the surrounding connecting parts. The auxiliary bearing 1-19 is connected below the connecting parts through the boom 1-25.

[0076] In addition, an inspection hole is provided on one side of the azimuth base 1-1, and the inspection hole is covered with an external interface plate 1-2 for easy maintenance.

[0077] The azimuth base 1-1 is also equipped with a first encoder 1-21 for recording rotational parameters; a data pinion 1-20 is mounted on the shaft of the first encoder 1-21; a data gear 1-18 is mounted on the azimuth main shaft 1-15; the data gear 1-18 and the data pinion 1-20 are connected in a transmission connection. Therefore, when the azimuth main shaft rotates, it drives the shaft of the first encoder 1-21 to rotate, and the first encoder 1-21 records the rotational parameters of the azimuth main shaft 1-15.

[0078] In this embodiment, the azimuth main shaft 1-15 is located at the end of the azimuth base 1-1, and a busbar ring 1-22 is provided thereon.

[0079] A power distribution box 1-12 is also installed on one side of the orientation base 1-1 to provide power to the entire equipment.

[0080] The azimuth base 1-1 is also equipped with a servo control module 1-23, a first servo power module 1-24, a second servo power module 1-26, a communication module 1-27, and an inertial navigation module 1-28.

[0081] In order to connect the external circulation channel with the first air duct, the turntable device also includes an orientation turntable;

[0082] The bottom of the azimuth turntable is set on the azimuth main axis 1-15, wherein the azimuth turntable includes a small azimuth turntable 2-2 or a large azimuth turntable 2-3;

[0083] The azimuth turntable has a hollow internal structure, containing an external circulation channel and an internal circulation channel. One end of the internal circulation channel has an air inlet 2-15, and the other end has an air outlet. Two symmetrical power arms 3-1 are connected to the top surface of the azimuth turntable. Air guide holes are provided at the connections between the top surface of the azimuth turntable and the power arms 3-1 and data arms 3-10, respectively. One air guide hole connects to one end of the external circulation channel, and the other connects to the other end. Each air guide hole connects to a corresponding first air duct. This achieves the connection between the external circulation channel and the first air duct.

[0084] In this embodiment, the external circulation channel can be referred to as external circulation air duct 2-20;

[0085] Specifically, the refrigeration system includes evaporator pipes installed in the external circulation channel, as well as a compressor, condenser, and expansion valve installed in the external circulation channel;

[0086] The evaporator pipes, compressor, condenser, and expansion valve are connected sequentially through the pipe body, and the expansion valve is then connected to the evaporator pipes to form an internal circulation; the pipe body contains the refrigerant, and the pipe body is equipped with a pump for transporting the refrigerant.

[0087] Therefore, the refrigerant is transferred to the compressor for compression and heating, and then transferred to the condenser for cooling. After cooling, it passes through the expansion valve to form a low-temperature refrigerant. Finally, the low-temperature refrigerant is transferred to the evaporator pipe. Under the action of the first air supply component, the refrigerant in the evaporator pipe releases cold air, and at the same time, the heat transferred from the return air vent is transferred to the compressor again through the refrigerant to enter the next refrigeration cycle.

[0088] The condenser includes a second air supply component that supplies air to the condenser, transferring heat from the air inlet 2-15 to the air in the internal circulation channel for release and exhausting it from the air outlet. For this purpose, the condenser is cooled by the second air supply component.

[0089] It should be noted that the refrigeration system here can be referred to as an environmental control device.

[0090] To improve the sealing performance between the turntable device and the orientation transmission device when the turntable rotates on the orientation base 1-1, a first sealing ring 1-6 is fitted on the top edge of the orientation base 1-1, and a second sealing ring 2-5 is provided at the bottom of the orientation turntable at the position corresponding to the first sealing ring 1-6. The first sealing ring 1-6 and the second sealing ring 2-5 form a labyrinth structure. Therefore, by forming a labyrinth structure between the first sealing ring 1-6 and the second sealing ring 2-5, the sealing performance between the turntable device and the orientation transmission device is improved.

[0091] To further improve sealing, an azimuth bushing 1-7 is provided on the top of the azimuth base 1-1; a first oil seal 2-23 is provided on the inner side of the second sealing ring 2-5 through a pressure plate 2-4, and the first oil seal 2-23 makes frictional contact with the azimuth bushing 1-7 for sealing. Therefore, the first oil seal can further improve the sealing performance between the turntable device and the azimuth transmission device when the turntable rotates on the azimuth transmission device.

[0092] In this embodiment, one end of the internal circulation channel extends outside the azimuth turntable to become an air inlet 2-15, wherein the bottom of the air inlet 2-15 is provided with a drain outlet 2-19 for discharging condensate. The air inlet 2-15 is arranged opposite to the air outlet. The air outlet is led out from the internal circulation channel through an air outlet pipe, and the opening of the air outlet pipe is the air outlet. The condensate formed at the bottom of the air outlet pipe is led out from inside the azimuth turntable through a drain pipe 2-17, and a drain connector 2-18 is provided at one end leading out from inside the azimuth turntable. The bottom of the air outlet pipe is connected to a condensate collection tank 2-16, and the collection tank 2-16 is connected to the drain pipe 2-17.

[0093] A back plate 2-6 is provided on one side of the directional turntable, and a cover plate 2-7 is provided on the back plate 2-6. The air outlet pipe is installed on the cover plate 2-7. A first baffle 2-9 is axially fitted on the air outlet pipe. A second oil seal 2-24 is fixed to the first baffle 2-9 by an oil seal seat 2-8 on the outside of the first baffle 2-9, so that the air outlet pipe can be well sealed. A screen window 2-25 is also provided at the air outlet.

[0094] The azimuth turntable is located on the outside of the power arm 3-1 and the data axis 3-26, and is also equipped with a side cover plate 2-13 for maintenance.

[0095] The external circulation channel is fixed inside the azimuth turntable by nylon plate 2-14;

[0096] The electrical equipment inside the azimuth turntable is powered by a cable 2-21 led out from the distribution box. The cable 2-21 is fixed to the azimuth turntable by a first clamp 2-22. A cable hole 2-26 is provided on a cover plate 2-13 on one side for the cable to pass through. The cable 2-21 is fixed to the cable hole 2-26 by a second clamp 2-27.

[0097] To achieve a rotatable connection between the high-frequency box assembly and the pitch drive, the power arm 3-1 is rotatably connected to one side of the high-frequency box assembly 4 via a power shaft 3-17; the data arm 3-10 is rotatably connected to the other side of the high-frequency box assembly 4 via a data shaft 3-26; one end of the power shaft 3-17 extends into the power arm 3-1 and is rotatably connected to the power arm 3-1 via a connector, while the other end of the power shaft 3-17 is connected to the high-frequency box assembly 4; one end of the data shaft 3-26 extends into the data arm 3-10 and is rotatably connected to the data shaft 3-26 via a connector, while the other end of the data shaft 3-26 is connected to the high-frequency box assembly 4; a second drive device is located inside the power arm 3-1, and its output shaft is connected to the power shaft 3-17 via a pitch reducer 3-4. Therefore, the high-frequency box assembly is driven to pitch and rotate via the second drive device.

[0098] To further realize the transmission connection between the pitch reducer 3-4 and the power shaft 3-17, a power pinion 3-20 is set on the output shaft of the pitch reducer 3-4, and a power gear 3-19 is set on the power shaft 3-17. The power pinion 3-20 and the power gear 3-19 are connected in a transmission manner.

[0099] The power shaft 3-17 is rotatably mounted inside the power arm 3-1 via an auxiliary bearing 3-15. The auxiliary bearing 3-15 is connected to the inside of the power arm 3-1 via an auxiliary bearing seat 3-14. An auxiliary bearing cover 3-18 is provided on the outside of the auxiliary bearing 3-15. In addition, a bushing 3-16 is fitted on the power shaft 3-17 between the auxiliary bearing 3-15 and the power gear 3-19.

[0100] When the power gear 3-19 is fitted onto the power shaft 3-17, they are connected by a flat key 3-21 to prevent loosening.

[0101] When the power shaft 3-17 passes through the power arm 3-1 and connects to the high-frequency box device, a power oil seal seat 3-22 is provided between the power shaft 3-17 and the power arm 3-1; similarly, when the data shaft 3-26 passes through the data arm 3-10 and connects to the high-frequency box device, a data oil seal seat 3-25 is provided between the data shaft 3-26 and the data arm 3-10. Both the power oil seal seat 3-22 and the data oil seal seat 3-25 are provided with a third oil seal 3-23. Each third oil seal 3-23 is pressed onto the corresponding oil seal seat by the second baffle 3-24 and is sealed to the corresponding shaft.

[0102] Data axis 3-26 is rotatably connected to data arm 3-10 via main bearing 3-28. Main bearing 3-28 is mounted on main bearing housing 3-27, which is internally connected to data arm 3-10 via a connector. A transition seat 3-31 is connected to the side of this connector away from the data axis, and a transition shaft 3-35 is connected to the transition seat 3-31.

[0103] The transition axis 3-35 is coaxial with the data axis 3-26. The side of the transition axis 3-35 away from the data axis passes through the data arm 3-10 and is equipped with a telescope bracket 3-5. The telescope bracket 3-5 is equipped with a television assembly 3-12 and a telescope assembly 3-13.

[0104] In addition, when the transition shaft 3-35 passes through the data arm 3-10, a fourth oil seal 3-34 is provided between the transition shaft 3-35 and the data arm 3-10;

[0105] A main bearing cap 3-29 is provided on one side of the main bearing 3-28; in addition, a locking nut 3-30 is provided on the data shaft 3-26.

[0106] An observation hole for easy maintenance is provided on the outer side of the power arm 3-1, and a power arm rear cover 3-2 is provided on the observation hole; an observation hole for easy maintenance is also provided on the outer side of the data arm 3-10, and a data arm rear cover 3-6 is provided on the data arm.

[0107] To achieve heat dissipation inside the high-frequency enclosure via an external circulation system, the power arm 3-1 and data arm 3-10 are designed with hollow cavities, each forming a first air duct. The power shaft 3-17 and data shaft 3-26 are each provided with a second air duct along their axial direction, connecting to the interior of the high-frequency enclosure 4. Thus, the first and second air ducts, together with the external circulation channel, form an external circulation system, which, with the assistance of the cooling system, achieves heat dissipation inside the high-frequency enclosure.

[0108] It should be noted that the second air duct of the power shaft 3-17 is a channel formed by opening the power shaft along the axial direction to pass through the power shaft and connect the first air duct of the power arm with the high frequency box device; it can also be a tubular shaft.

[0109] Similarly, the data axis 3-26 can be a tubular shaft. The data axis 3-26 is provided with a ventilation slot 3-36 on the first air duct part of the data arm 3-10, which connects the high-frequency box device with the first air duct of the data arm 3-10. For this purpose, an external circulation system is formed by the first air duct and the second air duct and the external circulation channel. With the assistance of the cooling system, heat dissipation is achieved inside the high-frequency box device.

[0110] A second encoder 3-33 is connected to one end of the data shaft 3-26 located inside the data arm 3-10; the rotation parameters of the data shaft 3-26 are recorded by the second encoder 3-33.

[0111] The data arm 3-10 is equipped with a mechanical limiter 3-9 for limiting the data axis 3-26. Therefore, the rotation angle of the high-frequency box device can be limited by the mechanical limiter 3-9.

[0112] The data arm 3-10 is also equipped with a pitch zero-position locking mechanism 3-8, a limit switch 3-38 and a nut 3-11 installed on the pitch zero-position locking mechanism 3-8; an observation window 3-37 is also provided on one side of the power arm.

[0113] It should be noted that the first drive device is the azimuth motor 1-3; the second drive device is the pitch motor 3-3.

[0114] To further illustrate the highly integrated two-axis rotary table provided by the present invention, the following description is provided in conjunction with the accompanying drawings. Figures 1-6 As shown, it includes three parts: an azimuth drive device, a turntable device, and a pitch drive device. The azimuth drive device and the pitch drive device serve as basic modules. By selecting either the small azimuth turntable 2-2 or the large azimuth turntable 2-3, two turntable devices of different widths can be assembled. As optional modules, two sizes of turntables can be assembled through modular assembly to meet the usage requirements of different antenna mounts.

[0115] In this embodiment, the turntable is assembled by modularly assembling the azimuth transmission device, the turntable device, and the pitch transmission device. Figure 1 The transfer platform uses the large azimuth turntable 2-3 module, which differs from the small azimuth turntable 2-2 only in width and shape. Both have identical installation interfaces; therefore, the external appearance of the small azimuth turntable 2-2 module assembly will not be described separately, and its installation is based on the large azimuth turntable 2-3. Furthermore, the transmission chains of the azimuth and pitch transmission devices in this invention are both conventional schemes involving motor reducers and single-stage gear transmission; the specific implementation details of the transmission chains will not be provided.

[0116] The orientation transmission device uses the orientation base 1-1 as the installation foundation, combined with Figure 4 As shown, the azimuth transmission device integrates a power distribution box, servo control module, servo power supply (servo power supply module 1 and servo power supply module 2), inertial navigation module, and communication module. These modules are arranged near the maintenance windows around the azimuth base 1-1 for easy inspection and maintenance. An observation hole is provided on the side of the azimuth base 1-1, and a cover plate 1-9 is provided at this observation hole. A bottom cover plate 1-8 is provided at the bottom of the azimuth base.

[0117] A navigation antenna 1-11 is also installed below the azimuth base 1-1 via an antenna bracket 1-10;

[0118] The aforementioned azimuth transmission device uses the azimuth base 1-1 as the mounting foundation and integrates a power distribution box, servo power supply, servo control module, communication module, and inertial navigation module. The azimuth zero-position locking mechanism 1-5 is connected and fixed to the azimuth base 1-1, which locks the turntable device at the zero-position angle for protection during equipment transportation. The azimuth labyrinth 1-6 is fixed to the azimuth base 1-1 through shaft hole fitting and screw connection, and then the azimuth bushing 1-7 is fixed to the azimuth labyrinth 1-6 through shaft hole fitting.

[0119] The aforementioned turntable device mainly includes an environmental control device 2-1, a small azimuth turntable 2-2, and a large azimuth turntable 2-3. The small azimuth turntable 2-2 and the large azimuth turntable 2-3 differ only in their external dimensions; their installation interfaces are identical. The azimuth transmission device adopts a structure where the main shaft rotates but the outer casing does not. The turntable device rotates as a whole. Waterproofing is achieved through a labyrinth structure composed of azimuth labyrinth 1-6 and turntable labyrinth 2-5. An oil seal is fixed to the turntable labyrinth 2-5 by a pressure plate 2-4, and it achieves frictional contact sealing with the azimuth bushing 1-7, meeting salt spray protection requirements. One end of the ventilation pipe 2-10 is sealed to the environmental control device 2-1 by screws and a tightened silicone rubber gasket; the other end is sealed by an inner oil seal in the oil seal seat 2-8. The environmental control device 2-1 is easily installed and removed from the turntable via guide rails on both sides. A positioning pin is designed on the back to cooperate with pin seat 2-12 for positioning, ensuring the environmental control device 2-1 is properly installed. Finally, the screws on the front panel of the environmental control device 2-1 are tightened into place. The left air outlet of the environmental control device 2-1 provides cool air at a certain temperature and flow rate, which enters the high-frequency box unit via the power arm 3-1 and the pitch power shaft. The heated air then passes through the pitch data shaft and data arm 3-10 on the other side, finally returning to the right air return outlet of the environmental control device 2-1, circulating repeatedly to dissipate heat from the equipment inside the high-frequency box.

[0120] It should be noted that the orientation maze here refers to the first sealing ring 1-6, and the turntable maze refers to the second sealing ring 2-5.

[0121] The directional transmission device serves as the support for the turntable. The turntable assembly is secured via shaft-hole mating, pin drive, and screw connection. The turntable assembly rotates as a whole, and its connection to the directional transmission device is waterproofed through a labyrinth structure consisting of directional labyrinth 1-6 and turntable labyrinth 2-5. An oil seal is fixed to turntable labyrinth 2-5 by pressure plate 2-4, and it achieves frictional contact sealing with directional bushing 1-7, meeting the turntable's salt spray protection requirements. One end of the ventilation pipe 2-10 is fixed to the environmental control device 2-1 by screws and a tightened silicone rubber gasket for sealing. The other end is sealed by an oil seal inside oil seal seat 2-8. The environmental control device 2-1 is positioned using guide rails and guide pins, ensuring proper installation. Figure 4As shown in the enlarged view I, the azimuth labyrinth 1-6 and the azimuth bushing 1-7 are connected by machining grooves on the flange surface of the azimuth labyrinth 1-6, inserting sealing material (such as silicone rubber rope), and tightening the flange surfaces of the two parts with screws to ensure a seal. This method is often used in turntables.

[0122] Air at a certain temperature and flow rate is supplied through the left air outlet of the environmental control device 2-1, and enters the high-frequency box device via the power arm 3-1 and the pitch power shaft. The heated air then passes through the pitch data shaft and data arm 3-10 on the other side, and finally returns to the right return air outlet of the environmental control device 2-1. By setting a cavity inside the small-position turntable 2-2, the external circulation air duct of the environmental control device 2-1 and the internal wiring channel of the turntable device are made independent. Wiring holes are machined on the nylon plate 2-13, and sealed after wiring is completed to prevent short circuits between the air supply and return of the environmental control device 2-1 within the turntable device.

[0123] The pitch transmission device mainly includes components such as the power arm 3-1 and the data arm 3-10, as well as a pitch zero-position locking mechanism 3-8, a mechanical limiter 3-9, a television assembly, and a telescope. The power arm rear cover 3-2 and the data arm rear cover 3-6 are respectively fixed to the power arm 3-1 and the data arm 3-10 by screws. The power arm 3-1 and the data arm 3-10 are installed independently and are fixed to both sides of the high-frequency box device by shaft hole mating. Finally, the power arm 3-1, the data arm 3-3 and the turntable device are positioned and fixed by pins and screws.

[0124] The power arm 3-1 and the data arm 3-10 are installed relatively independently. The pitch angle movement of the turntable is limited by operating the pitch zero-position locking mechanism 3-8, which is used for pitch protection during turntable transportation.

[0125] Mechanical limiters 3-9 are used for mechanical protection in pitch angle servo control. By setting stop blocks at corresponding positions on the high-frequency enclosure, they protect the device from damage and cable breakage when the pitch angle of the servo-faulted antenna mount exceeds the working angle range excessively. The structural schemes of the azimuth zero-position locking mechanism 1-5, the pitch zero-position locking mechanism 3-8, and the mechanical limiters 3-9 are not detailed here as they are not relevant to this patent. (Combined with...) Figure 1 As shown, the pitch drive power arm 3-1 and data arm 3-10, once installed, are fixed to both sides of the small azimuth turntable 2-2 by pin positioning and screw connection.

[0126] In summary, the present invention provides a highly integrated two-axis turntable, which mainly comprises three parts: an orientation transmission device, a turntable device, and a pitch transmission device. By integrating, standardizing, and modularizing the turntable design, the power distribution box, communication module, servo system, navigation system, environmental control device, attitude sensor, television array, and telescope are integrated into the turntable, simplifying the external interface and reducing the amount of equipment, thus lowering transportation and installation costs. The azimuth and pitch transmission devices are used as basic modules, while the turntable device is designed with two different widths for the azimuth turntable as optional modules. This allows for modular assembly of two sizes of turntables, adapting to the installation requirements of different sized high-frequency enclosures and improving the turntable's versatility. Through the integrated design of the environmental control device, the internal and external circulation channels are spatially staggered, integrating the air inlets and outlets of the internal and external circulation into a single unit of the environmental control device, meeting the turntable's installation requirements. Combined with the pitch transmission device and the high-frequency enclosure, a complete air-cooled circulation channel is formed, achieving independent heat dissipation for the turntable. This meets the heat dissipation needs of different antenna arrays and related equipment within the high-frequency enclosure, improving the turntable's applicability.

[0127] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A highly integrated two-axis rotary table, characterized in that, include: Orientation transmission device; A turntable device is mounted on the orientation transmission device and is rotatably connected to the orientation transmission device; A pitch transmission device is mounted on the turntable device. The pitch transmission device includes two symmetrically arranged power arms (3-1) and data arms (3-10), which are mounted on the turntable device. A high-frequency box device (4) for mounting the antenna array is provided between the power arms (3-1) and the data arms (3-10). The high-frequency box device (4) is rotatably connected to the corresponding power arms (3-1) and data arms (3-10) on both sides. The turntable device is equipped with an external circulation channel and an internal circulation channel; One end of the external circulation channel is an air supply outlet, and the other end is a return air outlet; Both the power arm (3-1) and the data arm (3-10) are equipped with a first air duct; The air supply outlet is connected to the first air duct inside the power arm (3-1), the return air outlet is connected to the first air duct inside the data arm (3-10), and the high-frequency box device (4) is connected to the first air duct inside the corresponding power arm (3-1) and data arm (3-10) through the second air ducts set on both sides. The external circulation channel is equipped with a first air supply component; The inner circulation channel is equipped with a refrigeration system. The refrigeration system outputs a refrigerant to the outer circulation channel. Under the action of the first air supply component, the air in the outer circulation channel is cooled by the refrigerant and then output from the air outlet. The orientation transmission device includes a first driving device for driving the turntable device to rotate; The pitch transmission device also includes a second drive device for driving the high-frequency box device (4) to pitch and rotate.

2. The highly integrated two-axis rotary table according to claim 1, characterized in that, The orientation transmission device further includes: Orientation base (1-1), which is a cylindrical structure; The azimuth main shaft (1-15) is vertically set inside the azimuth base (1-1) and is rotatably connected to the interior of the azimuth base (1-1) through a connector. Its top extends above the top surface of the azimuth base (1-1) and is connected to the turntable device. The first driving device is disposed in the azimuth base (1-1), and its output shaft is connected to the azimuth main shaft (1-15) through the azimuth reducer (1-4); An inspection hole is provided on one side of the azimuth base (1-1), and an external interface plate (1-2) is provided on the cover of the inspection hole.

3. The highly integrated two-axis rotary table according to claim 2, characterized in that, The orientation base (1-1) is also provided with a first encoder (1-21) for recording rotation parameters; a data pinion (1-20) is provided on the rotating shaft of the first encoder (1-21). A large data gear (1-18) is fitted onto the azimuth spindle (1-15); the large data gear (1-18) is connected to the small data gear (1-20) in a transmission connection.

4. The highly integrated two-axis rotary table according to claim 2, characterized in that, The turntable device further includes: A azimuth turntable, the bottom of which is set on the azimuth main axis (1-15), wherein the azimuth turntable includes a small azimuth turntable (2-2) or a large azimuth turntable (2-3). The azimuth turntable has a hollow structure inside, which contains the outer circulation channel and the inner circulation channel. The internal circulation channel is provided with an air inlet (2-15) at one end and an air outlet at the other end; The power arm (3-1) is connected to two symmetrical locations on the top surface of the azimuth turntable. Air guide holes are provided at the connection points between the top surface of the azimuth turntable and the power arm (3-1) and the data arm (3-10), respectively; One air guide hole is connected to one end of the external circulation channel, and the other air guide hole is connected to the other end of the external circulation channel; Each of the aforementioned air guide holes is connected to the corresponding first air duct.

5. The highly integrated two-axis rotary table according to claim 4, characterized in that, The refrigeration system includes an evaporator pipe disposed within the external circulation channel, and a compressor, a condenser, and an expansion valve disposed within the external circulation channel; The evaporator pipe, compressor, condenser, and expansion valve are connected sequentially through the pipe body, and the expansion valve is then connected to the evaporator pipe to form an internal circulation; wherein, the pipe body contains the refrigerant, and the pipe body is equipped with a pump for transporting the refrigerant; The refrigerant is transferred to the compressor for compression and heating, and then transferred to the condenser for cooling. After cooling, it passes through the expansion valve to form a low-temperature refrigerant. Finally, the low-temperature refrigerant is transferred to the evaporator pipe. Under the action of the first air supply component, the refrigerant in the evaporator pipe releases cold air, and at the same time, the heat transferred from the return air vent is transferred to the compressor again through the refrigerant to enter the next refrigeration cycle. The condenser includes a second air supply component that supplies air to the condenser, transferring heat from the air inlet (2-15) to the air in the internal circulation channel for release, and exhausting it from the air outlet.

6. The highly integrated two-axis rotary table according to claim 4, characterized in that, A first sealing ring (1-6) is fitted on the top edge of the azimuth base (1-1), and a second sealing ring (2-5) is provided at the bottom of the azimuth turntable at the position corresponding to the first sealing ring (1-6). A labyrinth structure is formed between the first sealing ring (1-6) and the second sealing ring (2-5). An azimuth bushing (1-7) is provided on the top of the azimuth base (1-1). The second sealing ring (2-5) has a first oil seal (2-23) provided on the inner side through the pressure plate (2-4), and the first oil seal (2-23) is in frictional contact with the directional bushing (1-7) for sealing.

7. The highly integrated two-axis rotary table according to claim 4, characterized in that, The power arm (3-1) and data arm (3-10) have hollow internal structures, each forming a first air duct; The power arm (3-1) is rotatably connected to one side of the high-frequency box device (4) via a power shaft (3-17); The data arm (3-10) is rotatably connected to the other side of the high-frequency box device (4) via a data shaft (3-26); One end of the power shaft (3-17) extends into the interior of the power arm (3-1) and is rotatably connected to the power arm (3-1) via a connector. The other end of the power shaft (3-17) is connected to the high-frequency box device (4). One end of the data shaft (3-26) extends into the interior of the data arm (3-10) and is rotatably connected to the data shaft (3-26) via a connector. The other end of the data shaft (3-26) is connected to the high-frequency box device (4). The second drive device is located inside the power arm (3-1), and its output shaft is connected to the power shaft (3-17) via a pitch reducer (3-4).

8. The highly integrated two-axis rotary table according to claim 7, characterized in that, Both the power shaft (3-17) and the data shaft (3-26) are provided with a second air duct along the axial direction, which connects to the interior of the high-frequency box device (4).

9. The highly integrated two-axis rotary table according to claim 7, characterized in that, The data axis (3-26) is connected to a second encoder (3-33) at one end inside the data arm (3-10).

10. The highly integrated two-axis rotary table according to claim 7, characterized in that, The data arm (3-10) is provided with a mechanical limiter (3-9) for limiting the data axis (3-26).

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