Highly-integrated two-shaft rotary table

Abstract

The invention provides a highly-integrated two-axis rotary table, and relates to the technical field of rotary tables. The rotary table comprises an orientation transmission device. The pitching transmission device comprises a power arm and a data arm which are symmetrically arranged, the pitching transmission device is arranged on the turntable device, and a high-frequency box device used for installing an antenna array plane is arranged between the power arm and the data arm; the two sides of the high-frequency box device are rotationally connected with the corresponding power arm and data arm; an outer circulation channel and an inner circulation channel are arranged in the turntable device; the inner circulation channel is provided with a refrigerating system. A complete air cooling circulation channel is formed by combining the pitching transmission device and the high-frequency box device, independent heat dissipation of the rotary table is achieved, the heat dissipation requirements of different antenna array planes and related equipment in the high-frequency box can be met, and the applicability of the rotary table is improved.

Description

Technical Field

[0001] The invention relates to the technical field of turntables, and in particular to a highly integrated two-axis turntable. Background Art

[0002] The two-axis turntable (hereinafter referred to as the turntable) is a mechatronic complex used to carry loads and meet the requirements of its azimuth and pitch rotation range, rotation speed and acceleration requirements, servo control accuracy and other indicators. Conventional turntables, whose distribution boxes, communication modules, servo systems and navigation systems are mostly separated from the turntable, are not integrated, resulting in too much total equipment. The highly adaptable two-axis turntable disclosed in the prior art, although its internal design of refrigerant water circulation pipelines to meet the heat dissipation requirements of active phased array radars with large heat dissipation and high heat density, does not integrate distribution boxes, water cooling modules, etc., and requires external distribution boxes, cooling cabinets and other equipment, resulting in a large total amount of equipment. In addition, conventional turntables are mostly designed for loads alone, that is, one turntable often corresponds to only one load, and the turntable is not designed in a universal and modular manner, especially the internal integrated heat dissipation system, so that the turntable can adapt to the installation requirements of various loads and be used in different occasions and installation platforms. The prior art also discloses an integrated universal azimuth and pitch two-axis turntable, which, through its integrated design, can adapt to different azimuths, pitch transmission ratios and pitch limit angles and has a certain degree of adaptability. However, since there is no integrated cooling system inside, it cannot meet the installation requirements of equipment with large heat dissipation, resulting in limited use. Summary of the invention

[0003] In order to address the deficiencies in the background technology, the present invention provides a highly integrated two-axis turntable, which has an integrated air-cooled environmental control device inside, which simplifies the external interface and reduces the amount of equipment on the turntable, meeting the installation requirements of different types of antenna arrays, such as tracking radar, measurement radar, reconnaissance, interference and other equipment. According to the installation requirements and equipment heat dissipation requirements of different antenna arrays, a matching high-frequency box device is designed as an installation platform for the antenna array, which is then assembled with the turntable, shortening the design cycle and reducing production costs. The present invention can be widely used in the assembly of different types of antenna bases.

[0004] The object of the present invention is to provide a highly integrated two-axis turntable, comprising: Azimuth transmission device; A turntable device is arranged on the azimuth transmission device and is rotationally connected with the azimuth transmission device; A pitch transmission device is arranged on the turntable device, and the pitch transmission device includes two symmetrically arranged power arms and data arms, which are arranged on the turntable device, and a high-frequency box device for installing the antenna array surface is arranged between the power arm and the data arm; the two sides of the high-frequency box device are rotatably connected with the corresponding power arm and data arm; The turntable device is provided with an outer circulation channel and an inner circulation channel; One end of the outer circulation channel is an air supply port, and the other end is an air return port; The power arm and the data arm are both provided with a first air duct; The air supply port is connected to the first air duct in the power arm, the air return port is connected to the first air duct in the data arm, and the interior of the high-frequency box device is connected to the first air duct in the corresponding power arm and data arm through the second air ducts arranged on both sides; A first air supply component is arranged in the outer circulation channel; The inner circulation channel is provided with a refrigeration system, and the refrigeration system outputs a refrigeration medium to be transmitted 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 refrigeration medium and output from the air supply port; The azimuth transmission device comprises a first driving device for driving the turntable device to rotate; The pitch transmission device also includes a second driving device for driving the high frequency box device to pitch and rotate.

[0005] Preferably, the azimuth transmission device further comprises: Azimuth base, which is a cylindrical structure; An azimuth main axis is vertically arranged in the azimuth base, and is rotatably connected to the inside of the azimuth base through a connecting piece, and its top extends above the top surface of the azimuth base and is connected to the turntable device; The first driving device is arranged in the azimuth base, and its output shaft is drivingly connected to the azimuth main shaft through an azimuth reducer; An inspection hole is provided on one side of the azimuth base, and an external interface plate is provided on the upper cover of the inspection hole.

[0006] Preferably, the azimuth base is further provided with a first encoder for recording rotation parameters; a data pinion is provided on the rotating shaft of the first encoder; A data large gear is sleeved on the azimuth main shaft; the data large gear is transmission-connected with the data small gear.

[0007] Preferably, the turntable device further comprises: An azimuth turntable, the bottom of which is arranged on the azimuth main axis, wherein the azimuth turntable includes a small azimuth turntable or a large azimuth turntable; The interior of the azimuth turntable is a cavity structure, in which the outer circulation channel and the inner circulation channel are arranged; The inner circulation channel is provided with an air inlet at one end and an air outlet at the other end; The power arms are connected to two symmetrical positions on the top surface of the azimuth turntable; The top surface of the azimuth turntable is provided with air guide holes at the connection points with the power arm and the data arm 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 air guide holes is communicated with the corresponding first air duct.

[0008] Preferably, the refrigeration system comprises an evaporator pipe arranged in the external circulation channel, and a compressor, a condenser and an expansion valve arranged in the external circulation channel; The evaporator pipeline, the compressor, the condenser and the expansion valve are connected in sequence through the pipe body, and the expansion valve is then connected to the evaporator pipeline to form an internal circulation; wherein a refrigerant medium is arranged in the pipe body, and a pump body for transmitting the refrigerant medium is arranged on the pipe body; After the refrigerant is transmitted to the compressor for compression and temperature increase, it is then transmitted 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 transmitted to the evaporator pipe. Under the action of the first air supply component, the refrigerant in the evaporator pipe releases cold air. At the same time, the heat transmitted from the return air port is once again transmitted to the compressor through the refrigerant, and enters the next refrigeration cycle. The condenser includes a second air supply component, which supplies air to the condenser, transfers heat from the air inlet to the air in the internal circulation channel for release, and discharges the heat from the air outlet.

[0009] Preferably, a first sealing ring is sleeved on the top edge of the azimuth base, and a second sealing ring is arranged at a position corresponding to the first sealing ring on the bottom of the azimuth turntable, and a labyrinth structure is formed between the first sealing ring and the second sealing ring; An azimuth sleeve is arranged on the top of the azimuth base; A first oil seal is arranged inside the second sealing ring through a pressure plate, and the first oil seal is frictionally contacted and sealed with the azimuth sleeve.

[0010] Preferably, the power arm and the data arm have a cavity structure inside, and both form a first air duct; The power arm is rotatably connected to one side of the high-frequency box device via a power shaft; The data arm is rotatably connected to the other side of the high frequency box device via a data shaft; One end of the power shaft extends into the interior of the power arm and is rotatably connected to the power arm through a connecting piece, and the other end of the power shaft is connected to the high-frequency box device; One end of the data shaft extends into the inside of the data arm and is rotatably connected to the data shaft through a connecting piece, and the other end of the data shaft is connected to the high-frequency box device; The second driving device is arranged in the power arm, and the output shaft thereof is transmission-connected to the power shaft via a pitch reducer.

[0011] Preferably, the power shaft and the data shaft are both provided with the second air duct along the axial direction and connected to the interior of the high-frequency box device.

[0012] Preferably, one end of the data shaft located in the data arm is transmission-connected to a second encoder.

[0013] Preferably, the data arm is provided with a mechanical limiter for limiting the data axis.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a highly integrated two-axis turntable, which is specifically implemented through the following technical solutions: (1) Overall design of the turntable. The power distribution box, communication module, servo system, navigation system, environmental control device, attitude indicator, TV combination and telescope are integrated and installed into the turntable. The external interface of the turntable is simplified and designed as 1 power input and 5 network ports. By connecting to the computer, the servo control of the turntable, the control of the environmental control device and the transmission and reception of the antenna array can be completed, without the need for external power distribution cabinets, display consoles, servo cabinets and processing cabinets, thus reducing the equipment quantity of the whole machine. At the same time, the turntable is divided into three parts: azimuth transmission device, turntable device and pitch transmission device. The azimuth transmission device and pitch transmission device are used as basic modules, and the turntable device is designed with two azimuth turntables of different widths as optional modules. In this way, two sizes of turntables can be assembled modularly to meet the installation requirements of high-frequency box devices of different sizes, thereby improving the versatility of the turntable.

[0015] (2) Structural design of the environmental control device. The internal and external circulation channels of the environmental control device adopt a spatially staggered arrangement structure, and the air inlets and outlets of the internal and external circulations are integrated into a single device of the environmental control device to meet the installation requirements of the turntable. The external circulation channels are arranged left and right, with the air supply port on the left and the return air port on the right. The air supply port provides air of 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, and dissipates the required heat dissipation equipment through the relay fan in the high-frequency box. The hot air after absorbing heat and heating passes through the data arm and pitch data shaft, and finally returns to the environmental control device through the return air port, and the cycle repeats like this. The internal circulation channels are arranged front and back, with the air inlet on the front side and the air outlet on the rear side. At the same time, the refrigerant is reasonably selected to increase the operating temperature range of the environmental control device, and the environmental control device is designed for corrosion resistance and the air tightness of the internal circulation channel and the condensation circulation channel is designed to meet the requirements for use outside the cabin.

[0016] Compared with the prior art, the highly integrated two-axis turntable disclosed in the present invention has the following advantages: (1) Integrated, universal and modular design of the turntable. The power distribution box, communication module, servo system, navigation system, environmental control device, attitude indicator, TV combination and telescope are integrated and installed into the turntable to simplify the external interface, reduce the total equipment volume, and reduce the transportation and installation costs. The azimuth transmission device and the pitch transmission device are used as the basic modules, and the turntable device is used as the optional module. Two azimuth turntables with different widths are designed, and two turntable devices with different widths can be assembled to improve the versatility and applicability of the turntable. When designing the antenna base scheme, it is only necessary to design the high-frequency box device scheme according to the load requirements. After determining the appearance scheme of the high-frequency box device, a turntable device with matching size is selected for modular assembly. This can meet different installation requirements and adapt to various usage environments, reduce design workload, and reduce production and processing costs.

[0017] (2) An environmental control device with integrated air cooling and heat dissipation inside the turntable. Through the integrated design of the environmental control device, the internal and external circulation channels are arranged in a staggered manner, and the air inlets and outlets of the internal and external circulation are integrated into a single device of the environmental control device to meet the turntable installation requirements. A complete air cooling circulation channel is formed through the pitch transmission device and the high-frequency box device 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 cavity 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 external circulation inlet and outlet of the environmental control device. After wiring, the wiring holes are blocked to prevent the cold air from the external circulation of the environmental control device from entering the return air outlet through the wiring holes and causing a short circuit in the turntable device.

[0018] (3) Inertia optimization design. The main structure of the turntable (azimuth base, large azimuth turntable, small azimuth turntable, power arm and data arm) adopts a symmetrical structure. At the same time, when installing and arranging the components, in addition to meeting the use requirements and maintainability requirements, the reasonable arrangement of each component is used to minimize the offset between the center of gravity of the turntable and the azimuth rotation axis, that is, to reduce the azimuth rotation inertia. For example, the distribution box, communication module, servo system and navigation system are arranged around the azimuth transmission device and are fixed; the environmental control device is arranged in the middle of the turntable device. The transmission chain in the pitch transmission device is an axisymmetric structural component, which has little effect on the position of the pitch center of gravity and is mainly determined by the load plan.

[0019] (4) Maintainability design. For the azimuth transmission device, maintenance windows are designed around and at the bottom of the azimuth base. Without disassembling the whole machine, the transmission chain, distribution box, servo system, communication system, and merge ring can be inspected and repaired through the maintenance windows. For the turntable device, the environmental control device is conveniently installed and disassembled in the turntable device by arranging guide rails on both sides. The back is designed with positioning pins, which cooperate with the pin seats to ensure that the environmental control device is installed in place. Finally, the front panel screws of the environmental control device are tightened in place. Maintenance windows are designed on the back and both sides of the turntable device. After connecting and disconnecting the power supply line and control line of the environmental control device through the back maintenance windows, the environmental control device can be disassembled for maintenance. The cables can be arranged and combed through the maintenance windows on both sides. In addition, the refrigerant filling window of the environmental control device is arranged on the outside, that is, the environmental control device can independently complete the refrigerant maintenance. For the pitch transmission device, maintenance windows are designed on the back and sides. The motor, reducer transmission chain and other equipment can be inspected and repaired through the back maintenance window, and the transmission gears can be maintained and inspected through the side maintenance windows.

[0020] (5) Design of mechanical protection structure of turntable. The turntable is usually self-locked by the motor power-off brake to prevent vibration, impact and other factors during transportation from causing movement of the antenna base in the azimuth and pitch directions, thereby preventing collision or other problems. In addition to the motor self-locking, this turntable has an azimuth zero-position locking mechanism and a pitch zero-position locking mechanism. The locking pin and the corresponding pin hole cooperate to stop the turntable during transportation. At the same time, due to the limited pitch working angle range (generally ), in order to prevent it from rotating beyond the limit and causing problems such as line or equipment damage, a mechanical limiter is added to limit the pitch motion angle range (generally When designing the high-frequency box device, adjust the position of the stop block according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the axonometric drawing of the turntable; Figure 2 Axonometric drawings of two optional modules for the turntable device; Figure 3 It is the main sectional view of the azimuth transmission device; Figure 4 It is a left sectional view of the azimuth transmission device and the turntable device; Figure 5 is a top sectional view of the turntable device; Figure 6 This is the main sectional view of the pitch transmission device. DETAILED DESCRIPTION

[0022] Several specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0023] The purpose of the present invention is to provide a highly integrated two-axis turntable, which includes an azimuth transmission device, a turntable device and a pitch transmission device. The turntable of the present invention has an integrated air-cooled heat dissipation environmental control device, i.e., a refrigeration system, which simplifies the external interface and reduces the amount of equipment on the turntable, and meets the installation requirements of various types of antenna arrays, such as tracking radar, measurement radar, reconnaissance, interference and other equipment. According to the installation requirements and equipment heat dissipation requirements of different antenna arrays, a matching high-frequency box device is designed as the installation platform of the antenna array, and then assembled with the turntable, shortening the design cycle and reducing the production cost. The present invention can be widely used in the assembly of different types of antenna bases.

[0024] To achieve the above purpose, see Figures 1 to 6 As shown, a highly integrated two-axis turntable includes an azimuth transmission device, a turntable device, and a pitch transmission device; The turntable device is arranged on the azimuth transmission device and is rotationally connected with the azimuth transmission device; the pitch transmission device is arranged on the turntable device, and the pitch transmission device includes two symmetrically arranged power arms 3-1 and data arms 3-10, which are arranged on the turntable device, and a high-frequency box device 4 for installing the antenna array surface is arranged between the power arm 3-1 and the data arm 3-10; the two sides of the high-frequency box device 4 are rotationally connected with the corresponding power arm 3-1 and the data arm 3-10; An external circulation channel and an internal circulation channel are provided in the turntable device; one end of the external circulation channel is an air supply port, and the other end is a return air port 2-28; a first air duct is provided in both the power arm 3-1 and the data arm 3-10; the air supply port is connected to the first air duct in the power arm 3-1, and the return air port is connected to the first air duct in the data arm 3-10; the interior of the high-frequency box device 4 is connected to the first air duct in the corresponding power arm 3-1 and the data arm 3-10 through the second air ducts provided on both sides; a first air supply component is provided in the external circulation channel; The inner circulation channel is provided with a refrigeration system, and the refrigeration system outputs a refrigeration medium to be transmitted 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 refrigeration medium and output from the air supply port; The azimuth transmission device includes a first driving device for driving the turntable device to rotate; the pitch transmission device also includes a second driving device for driving the high-frequency box device 4 to pitch and rotate.

[0025] The turntable provided by the present invention is provided with an external circulation channel and an internal circulation channel through a turntable device, wherein the external circulation channel is connected to the first air duct of the power arm and is also connected to the high-frequency box device, and the high-frequency box device is also connected to the first air duct inside the data arm. The external circulation channel forms an external circulation system with the high-frequency box device through the first air duct; and then the refrigerant medium is transmitted to the external circulation channel through the refrigeration system provided in the internal circulation channel. Under the action of the first air supply component, the equipment in the high-frequency box device in the entire external circulation system is circulated and cooled. Among them, the internal circulation channel cools down the air in the external circulation channel, thereby realizing the reciprocating transmission of the refrigerant medium to the external circulation channel through the internal circulation channel, and dissipating the heat of the equipment in the high-frequency box device.

[0026] 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; The azimuth base 1-1 is a cylindrical structure; the azimuth main shaft 1-15 is vertically arranged in the azimuth base 1-1, and is rotatably connected to the inside of the azimuth base 1-1 through a connecting piece, and 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 arranged in the azimuth base 1-1, and its output shaft is transmission-connected to the azimuth main shaft 1-15 through the azimuth reducer 1-4; for this purpose, the azimuth main shaft 1-15 is driven to rotate by the first driving device, thereby driving the turntable device to rotate.

[0027] In order 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 is meshed and connected with the power gear 1-14; a locking nut 1-16 is also provided on the azimuth main shaft 1-15; The azimuth main shaft 1-15 is rotatably connected to the azimuth base 1-1 through a main bearing 1-17 arranged at the upper end portion and an auxiliary bearing 1-19 arranged at the lower end portion.

[0028] It should be noted that the main bearing 1-17 is arranged at the top of the azimuth base 1-1, and is connected to the top inner wall of the azimuth base 1-1 of the cylindrical structure through surrounding connecting parts, and an auxiliary bearing 1-19 is connected below the connecting part through the boom 1-25.

[0029] In addition, an inspection hole is opened on one side of the azimuth base 1-1, and the upper cover of the inspection hole is provided with an external interface plate 1-2 for easy inspection.

[0030] The azimuth 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 rotation shaft of the first encoder 1-21; a data gear 1-18 is sleeved on the azimuth main shaft 1-15; the data gear 1-18 is in transmission connection with the data pinion 1-20. Therefore, when the azimuth main shaft rotates, the rotation shaft of the first encoder 1-21 is driven to rotate, and the rotation parameters of the azimuth main shaft 1-15 are recorded through the first encoder 1-21.

[0031] In this embodiment, the azimuth main axis 1-15 is located at the end inside the azimuth base 1-1, and a collector ring 1-22 is provided.

[0032] A distribution box 1-12 is also provided on one side of the azimuth base 1-1 to provide power for the entire device.

[0033] 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 are also provided in the azimuth base 1-1.

[0034] In order to achieve the communication between the outer circulation channel and the first air duct, the turntable device further includes an azimuth turntable; The bottom of the azimuth turntable is arranged 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 interior of the azimuth turntable is a cavity structure, in which an outer circulation channel and an inner circulation channel are arranged; an air inlet 2-15 is arranged at one end of the inner circulation channel, and an air outlet is arranged at the other end; the top surface of the azimuth turntable is symmetrically connected to the power arm 3-1 at two locations; the top surface of the azimuth turntable is respectively connected to the power arm 3-1 and the data arm 3-10 with air guide holes; one air guide hole is connected to one end of the outer circulation channel, and the other air guide hole is connected to the other end of the outer circulation channel; each air guide hole is connected to the corresponding first air duct. Thus, the outer circulation channel is connected to the first air duct.

[0035] In this embodiment, the external circulation channel may be referred to as the external circulation air duct 2-20; Specifically, the refrigeration system includes an evaporator pipe arranged in the external circulation channel, and a compressor, a condenser and an expansion valve arranged in the external circulation channel; The evaporator pipeline, the compressor, the condenser and the expansion valve are connected in sequence through the pipe body, and the expansion valve is then connected to the evaporator pipeline to form an internal circulation; wherein a refrigerant medium is arranged in the pipe body, and a pump body for transmitting the refrigerant medium is arranged on the pipe body; To this end, the refrigerant medium is transmitted to the compressor for compression and temperature increase, and then transmitted to the condenser for cooling. After cooling, it passes through the expansion valve to form a low-temperature refrigerant medium, and finally the low-temperature refrigerant medium is transmitted to the evaporator pipe. Under the action of the first air supply component, the refrigerant medium in the evaporator pipe releases cold air, and at the same time, the heat transmitted from the return air port is once again transmitted to the compressor through the refrigerant medium to enter the next refrigeration cycle; The condenser includes a second air supply component, which supplies air to the condenser, transfers heat from the air inlet 2-15 to the air in the internal circulation channel for release, and discharges it from the air outlet. To this end, the condenser is cooled by the second air supply component.

[0036] It should be noted that the refrigeration system here can be called an environmental control device.

[0037] In order to improve the sealing between the turntable device and the azimuth transmission device when the turntable device rotates on the azimuth transmission device, a first sealing ring 1-6 is sleeved on the top edge of the azimuth base 1-1, and a second sealing ring 2-5 is arranged at the bottom of the azimuth turntable at a position corresponding to the first sealing ring 1-6, and a labyrinth structure is formed between the first sealing ring 1-6 and the second sealing ring 2-5; for this purpose, a labyrinth structure is formed between the first sealing ring 1-6 and the second sealing ring 2-5, thereby improving the sealing between the turntable device and the azimuth transmission device.

[0038] In order to further improve the sealing performance, an azimuth sleeve 1-7 is arranged on the top of the azimuth base 1-1; a first oil seal 2-23 is arranged inside the second sealing ring 2-5 through a pressure plate 2-4, and the first oil seal 2-23 is frictionally contacted and sealed with the azimuth sleeve 1-7. Therefore, the first oil seal can further improve the sealing performance between the turntable device and the azimuth transmission device when the turntable device rotates on the azimuth transmission device.

[0039] In this embodiment, one end of the inner circulation channel extends to the outside of the azimuth turntable to form an air inlet 2-15, wherein a drain port 2-19 for discharging condensed water is provided at the bottom of the air inlet 2-15; the air inlet 2-15 is arranged opposite to the air outlet; the air outlet is led out from the inner circulation channel through an air outlet pipe, the outlet of the air outlet pipe is the air outlet, and the condensed water formed at the bottom of the air outlet pipe is led out from the azimuth turntable through a drain pipe 2-17, and a drain joint 2-18 is provided at one end led out from the azimuth turntable. The bottom of the air outlet pipe is connected to a condensed water collection tank 2-16, and the water collection tank 2-16 is connected to the drain pipe 2-17.

[0040] A back plate 2-6 is provided on one side of the azimuth turntable, a cover plate 2-7 is provided on the back plate 2-6, and the air outlet pipe is installed on the cover plate 2-7; a first baffle plate 2-9 is provided in the axial sleeve of the air outlet pipe, and a second oil seal 2-24 is fixed to the first baffle plate 2-9 through an oil seal seat 2-8 outside the first baffle plate 2-9, so that the air outlet pipe can be well sealed. A screen window 2-25 is also provided at the air outlet.

[0041] The azimuth turntable is located outside the power arm 3-1 and the data axis 3-26 and is also provided with a side cover 2-13 for maintenance; The outer circulation channel is fixed in the azimuth turntable through nylon plates 2-14; The electrical equipment in 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 wiring hole 2-26 for the cable to pass through is provided on a side cover 2-13. The cable 2-21 is fixed to the wiring hole 2-26 by a second clamp 2-27.

[0042] In order to realize the rotational connection between the high-frequency box device and the pitch transmission device, the power arm 3-1 is rotationally connected to one side of the high-frequency box device 4 through the power shaft 3-17; the data arm 3-10 is rotationally connected to the other side of the high-frequency box device 4 through the data shaft 3-26; one end of the power shaft 3-17 extends to the inside of the power arm 3-1, and is rotationally connected to the power arm 3-1 through a connecting piece, and 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 to the inside of the data arm 3-10, and is rotationally connected to the data shaft 3-26 through a connecting piece, and the other end of the data shaft 3-26 is connected to the high-frequency box device 4; the second drive device is arranged in the power arm 3-1, and its output shaft is transmission-connected to the power shaft 3-17 through the pitch reducer 3-4. To this end, the high-frequency box device is driven to pitch and rotate by the second drive device.

[0043] In order to further realize the transmission connection between the pitch reducer 3-4 and the power shaft 3-17, a power pinion 3-20 is arranged on the output shaft of the pitch reducer 3-4, and a power gear 3-19 is arranged on the power shaft 3-17, and the power pinion 3-20 is transmission-connected with the power gear 3-19; The power shaft 3-17 is rotatably arranged in the power arm 3-1 through the auxiliary bearing 3-15, wherein the auxiliary bearing 3-15 is connected to the inside of the power arm 3-1 through the auxiliary bearing seat 3-14, and an auxiliary bearing cover 3-18 is arranged on the outside of the auxiliary bearing 3-15; in addition, a shaft sleeve 3-16 is sleeved on the power shaft 3-17 between the auxiliary bearing 3-15 and the large power gear 3-19.

[0044] When the power gear 3-19 is sleeved on the power shaft 3-17, the two are connected to prevent loosening through a flat key 3-21; When the power shaft 3-17 passes through the power arm 3-1 and is connected to the high-frequency box device, a power oil seal seat 3-22 is arranged 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 is connected to the high-frequency box device, a data oil seal seat 3-25 is arranged between the data shaft 3-26 and the data arm 3-10, wherein the power oil seal seat 3-22 and the data oil seal seat 3-25 are both provided with a third oil seal 3-23, and each third oil seal 3-23 is pressed onto the corresponding oil seal seat through the second baffle 3-24 and is connected to the corresponding shaft seal.

[0045] The data shaft 3-26 is rotatably connected to the data arm 3-10 through the main bearing 3-28, wherein the main bearing 3-28 is mounted on the main bearing seat 3-27, and the main bearing seat 3-27 is connected to the inside of the data arm 3-10 through a connecting piece; a transition seat 3-31 is connected to the side of the connecting piece away from the data shaft, and a transition shaft 3-35 is connected to the transition seat 3-31. 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 to the outside where a telescope bracket 3-5 is arranged. The telescope bracket 3-5 is provided with a television assembly 3-12 and a telescope assembly 3-13.

[0046] 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; A main bearing cover 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.

[0047] An observation hole for easy maintenance is opened on the outer side of the power arm 3-1, and a power arm rear cover 3-2 is installed on the observation hole; an observation hole for easy maintenance is also opened on the outer side of the data arm 3-10, and a data arm rear cover 3-6 is also installed on it.

[0048] In order to achieve heat dissipation inside the high-frequency box device through the external circulation system, the power arm 3-1 and the data arm 3-10 are set to have a cavity structure inside, both forming a first air duct; the power shaft 3-17 and the data shaft 3-26 are both provided with a second air duct connected to the inside of the high-frequency box device 4 along the axial direction. To this end, an external circulation system is formed through the first air duct and the second air duct and the external circulation channel, and with the assistance of the refrigeration system, heat dissipation inside the high-frequency box device is achieved.

[0049] 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 penetrate the power shaft to form a connection between the first air duct of the power arm and the high-frequency box device, and may also be a tubular shaft body; Similarly, the data axis 3-26 can be a tubular axis body, and the data axis 3-26 is located on the first air duct part of the data arm 3-10 and is provided with a ventilation groove 3-36 connecting the high-frequency box device with the first air duct of the data arm 3-10; to this end, an external circulation system is further formed through the first air duct and the second air duct and the external circulation channel, and with the assistance of the refrigeration system, the heat inside the high-frequency box device is dissipated.

[0050] A second encoder 3-33 is transmission-connected to one end of the data axis 3-26 located in the data arm 3-10; the rotation parameters of the data axis 3-26 are recorded by the second encoder 3-33.

[0051] The data arm 3-10 is provided with a mechanical stopper 3-9 for limiting the data axis 3-26. For this reason, the rotation angle of the high frequency box device can be limited by the mechanical stopper 3-9.

[0052] Among them, the data arm 3-10 is also provided with a pitch zero position locking mechanism 3-8, and 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.

[0053] It should be noted that the first driving device is the azimuth motor 1-3; the second driving device is the pitch motor 3-3.

[0054] In order to further illustrate a highly integrated two-axis turntable provided by the present invention, the following is further described in conjunction with the accompanying drawings. Figures 1 to 6 As shown, it includes three parts: an azimuth transmission device, a turntable device and a pitch transmission device. The azimuth transmission device and the pitch transmission device are basic modules. By selecting a small azimuth turntable 2-2 or a large azimuth turntable 2-3, two width sizes of turntable devices can be assembled. As optional modules, two sizes of turntables can be assembled through modular assembly to meet the use requirements of different antenna bases.

[0055] In this embodiment, the assembly of the turntable is completed by modularly assembling the azimuth transmission device, the turntable device and the pitch transmission device. Figure 1 The module selected for the turntable is the large azimuth turntable 2-3, which differs from the small azimuth turntable 2-2 only in width and shape, and the installation interfaces of the two are exactly the same, so the appearance of the small azimuth turntable 2-2 module assembly is not introduced separately, and its related installation is carried out with reference to the large azimuth turntable 2-3. In addition, the transmission chains of the azimuth transmission device and the pitch transmission device in the present invention are both conventional schemes of motor reducer with primary gear transmission, and the specific implementation method of the transmission chain is not described in detail.

[0056] The azimuth transmission device uses the azimuth base 1-1 as the installation basis, combined with Figure 4As shown, the azimuth transmission device integrates a distribution box, a servo control module, a servo power supply (servo power supply module 1 and servo power supply module 2), an inertial navigation module and a communication module, etc. These modules are arranged near the maintenance windows around the azimuth base 1-1 for later inspection and maintenance. An observation hole is opened on the side of the azimuth base 1-1, and a cover plate 1-9 is provided at the observation hole. A bottom cover plate 1-8 is provided at the bottom of the azimuth base.

[0057] A navigation antenna 1-11 is also provided below the azimuth base 1-1 through an antenna bracket 1-10; The azimuth transmission device uses the azimuth base 1-1 as the installation base, and integrates the distribution box, servo power supply, servo control module, communication module and inertial navigation module, etc. The azimuth zero position locking mechanism 1-5 is connected and fixed to the azimuth base 1-1, through which the turntable device is locked at the zero angle for protection during equipment transportation; the azimuth maze 1-6 is fixed to the azimuth base 1-1 through shaft hole matching and screw connection, and then the azimuth shaft sleeve 1-7 is connected and fixed to the azimuth maze 1-6 through shaft hole matching.

[0058] The 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 are only different in appearance and size, and their installation interfaces are the same. The azimuth transmission device adopts a structure in which the main shaft rotates but the outer shell does not rotate. The turntable device rotates as a whole. The two are waterproofed by a labyrinth structure composed of an azimuth maze 1-6 and a turntable maze 2-5. The oil seal is fixed to the turntable maze 2-5 by a pressure plate 2-4, and is frictionally contacted and sealed with the azimuth sleeve 1-7 to meet the salt spray protection requirements. One end of the ventilation pipe 2-10 is fixed to the environmental control device 2-1 by a screw connection to tighten the silicone rubber gasket, and the other end is sealed by an oil seal in the oil seal seat 2-8. The environmental control device 2-1 is easy to install and remove in the turntable device by arranging guide rails on both sides. The back is designed with positioning pins, which cooperate with the pin seat 2-12 for positioning to ensure that the environmental control device 2-1 is installed in place. Finally, the front panel screws of the environmental control device 2-1 are tightened in place. The air supply port on the left side of the environmental control device 2-1 provides cold air with a certain temperature and flow rate, which enters the high-frequency box device through the power arm 3-1 and the pitch power axis. The hot air after absorbing heat and heating passes through the pitch data axis and data arm 3-10 on the other side, and finally returns to the return air port on the right side of the environmental control device 2-1, and circulates back and forth to dissipate heat for the equipment in the high-frequency box.

[0059] It should be noted that the orientation maze here is the first sealing ring 1-6, and the turntable maze is the second sealing ring 2-5.

[0060] The azimuth transmission device serves as the support of the turntable, and the turntable device is fastened by shaft hole matching, pin transmission and screw connection. The turntable device rotates as a whole, and it and the azimuth transmission device are waterproofed through the maze structure composed of the azimuth maze 1-6 and the turntable maze 2-5. The oil seal is fixed to the turntable maze 2-5 by the pressure plate 2-4, and is frictionally contacted and sealed with the azimuth sleeve 1-7 to meet the turntable's salt spray protection requirements. One end of the ventilation pipe 2-10 is sealed by tightening the silicone rubber gasket with screws and fixed to the environmental control device 2-1, and the other end is sealed by the oil seal in the oil seal seat 2-8. The environmental control device 2-1 is installed and positioned by the guide rails and guide pins, thereby ensuring that the environmental control device 2-1 is installed in place. Figure 4 As shown in the partial enlarged view I, a groove is machined on the flange surface of the azimuth maze 1-6 and the azimuth shaft sleeve 1-7, and a sealing material (such as a silicone rubber rope) is inserted into the groove. The two parts are connected and pressed together by screws to ensure the sealing of the flange surface. This method is often used in turntables.

[0061] Air of a certain temperature and flow rate is provided through the air supply port on the left side of the environmental control device 2-1, and enters the high-frequency box device through the power arm 3-1 and the pitch power axis. The hot air after absorbing heat and heating passes through the pitch data axis and the data arm 3-10 on the other side, and finally returns to the return air port on the right side of the environmental control device 2-1. By setting a partition cavity inside the small azimuth turntable 2-2, the external circulation duct of the environmental control device 2-1 and the wiring channel inside the turntable device are independent, and wiring holes are processed on the nylon plate 2-13. After the wiring is completed, it is blocked to prevent the air outlet and return air of the environmental control device 2-1 from short-circuiting in the turntable device.

[0062] The pitch transmission device mainly includes parts such as power arm 3-1, data arm 3-10, as well as pitch zero position locking mechanism 3-8, mechanical limiter 3-9, TV combination and telescope, etc. 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 screw connection. The power arm 3-1 and the data arm 3-10 are installed independently and are respectively fixed to the two sides of the high-frequency box device by shaft hole matching. Finally, the power arm 3-1, the data arm 3-3 and the turntable device are fixed by pin positioning and screw connection.

[0063] 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 the transportation of the turntable.

[0064] The mechanical limiter 3-9 is used for mechanical protection of the pitch angle servo control. By setting a stopper at the corresponding position of the high-frequency box device, it can protect the servo fault antenna base from pitch angle exceeding the working angle range, thereby preventing damage to the device and damage to the cable. The structural scheme of the azimuth zero position locking mechanism 1-5, the pitch zero position locking mechanism 3-8 and the mechanical limiter 3-9 is not related to this patent and will not be introduced in detail. Figure 1 As shown, the installed pitch transmission device power arm 3-1 and data arm 3-10 are fixed to both sides of the small azimuth turntable 2-2 by pin positioning and screw connection.

[0065] In summary, the present invention provides a highly integrated two-axis turntable, which mainly includes three parts: an azimuth transmission device, a turntable device and a pitch transmission device. Through the integrated, universal and modular design of the turntable, the distribution box, communication module, servo system, navigation system, environmental control device, attitude indicator, TV combination and telescope are integrated into the turntable, which simplifies the external interface of the turntable, reduces the equipment quantity of the turntable, and reduces the equipment transportation and installation costs; the azimuth transmission device and the pitch transmission device are used as basic modules, and the turntable device is designed with two azimuth turntables of different widths as optional modules, so that the turntable of two sizes can be modularly assembled to adapt to the installation requirements of high-frequency box devices of different sizes, thereby improving the versatility of the turntable; through the integrated design of the environmental control device, the internal and external circulation channels are staggered in space, and the air inlets and outlets of the internal and external circulation are integrated into a single device of the environmental control device to meet the installation requirements of the turntable, and the pitch transmission device and the high-frequency box device are combined to form a complete air cooling circulation channel to realize the independent heat dissipation of the turntable, which can meet the heat dissipation requirements of different antenna arrays and related equipment in the high-frequency box, and improve the applicability of the turntable.

[0066] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A highly integrated two-axis turntable, characterized in that: include: Azimuth transmission device; A turntable device is arranged on the azimuth transmission device and is rotationally connected with the azimuth transmission device; A pitch transmission device is arranged on the turntable device, the pitch transmission device comprises two symmetrically arranged power arms (3-1) and data arms (3-10), which are arranged on the turntable device, and a high-frequency box device (4) for installing the antenna array surface is arranged between the power arm (3-1) and the data arm (3-10); the two sides of the high-frequency box device (4) are rotatably connected to the corresponding power arm (3-1) and the data arm (3-10); The turntable device is provided with an outer circulation channel and an inner circulation channel; One end of the outer circulation channel is an air supply port, and the other end is an air return port; The power arm (3-1) and the data arm (3-10) are both provided with a first air duct; The air supply port is connected to the first air duct in the power arm (3-1), the air return port is connected to the first air duct in the data arm (3-10), and the interior of the high-frequency box device (4) is connected to the first air duct in the corresponding power arm (3-1) and the data arm (3-10) through the second air ducts arranged on both sides; A first air supply component is arranged in the outer circulation channel; The inner circulation channel is provided with a refrigeration system, and the refrigeration system outputs a refrigeration medium to be transmitted 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 refrigeration medium and output from the air supply port; The azimuth transmission device comprises a first driving device for driving the turntable device to rotate; The pitch transmission device also includes a second driving device, which is used to drive the high frequency box device (4) to pitch and rotate.

2. The highly integrated two-axis turntable according to claim 1, characterized in that: The azimuth transmission device further comprises: Azimuth base (1-1), which is a cylindrical structure; An azimuth main axis (1-15) is vertically arranged in the azimuth base (1-1), and is rotatably connected to the inside of the azimuth base (1-1) through a connecting piece, and 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 arranged in the azimuth base (1-1), and its output shaft is transmission-connected to the azimuth main shaft (1-15) via an azimuth reducer (1-4); An inspection hole is provided on one side of the orientation base (1-1), and an external interface plate (1-2) is provided on the upper cover of the inspection hole.

3. The highly integrated two-axis turntable according to claim 2, characterized in that: The azimuth 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 sleeved on the azimuth main shaft (1-15); the large data gear (1-18) is transmission-connected with the small data gear (1-20).

4. The highly integrated two-axis turntable according to claim 2, characterized in that: The turntable device further comprises: An azimuth turntable, the bottom of which is arranged on the azimuth main axis (1-15), wherein the azimuth turntable comprises a small azimuth turntable (2-2) or a large azimuth turntable (2-3); The interior of the azimuth turntable is a cavity structure, in which the outer circulation channel and the inner circulation channel are arranged; The inner circulation channel is provided with an air inlet (2-15) at one end and an air outlet at the other end; The power arms (3-1) are 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); 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 air guide holes is communicated with the corresponding first air duct.

5. The highly integrated two-axis turntable according to claim 4, characterized in that: The refrigeration system includes an evaporator pipe arranged in the external circulation channel, and a compressor, a condenser and an expansion valve arranged in the external circulation channel; The evaporator pipeline, the compressor, the condenser and the expansion valve are connected in sequence through the pipe body, and the expansion valve is then connected to the evaporator pipeline to form an internal circulation; wherein a refrigerant medium is arranged in the pipe body, and a pump body for transmitting the refrigerant medium is arranged on the pipe body; After the refrigerant is transmitted to the compressor for compression and temperature increase, it is then transmitted 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 transmitted to the evaporator pipe. Under the action of the first air supply component, the refrigerant in the evaporator pipe releases cold air. At the same time, the heat transmitted from the return air port is once again transmitted to the compressor through the refrigerant, and enters the next refrigeration cycle. The condenser comprises a second air supply component, which supplies air to the condenser, transfers heat from the air inlet (2-15) to the air in the internal circulation channel for release, and discharges the heat from the air outlet.

6. The highly integrated two-axis turntable according to claim 4, characterized in that: A first sealing ring (1-6) is sleeved on the top edge of the azimuth base (1-1), a second sealing ring (2-5) is arranged at a position corresponding to the first sealing ring (1-6) at the bottom of the azimuth turntable, and a labyrinth structure is formed between the first sealing ring (1-6) and the second sealing ring (2-5); An azimuth shaft sleeve (1-7) is arranged on the top of the azimuth base (1-1); A first oil seal (2-23) is arranged on the inner side of the second sealing ring (2-5) via a pressure plate (2-4), and the first oil seal (2-23) is frictionally contact-sealed with the azimuth shaft sleeve (1-7).

7. The highly integrated two-axis turntable according to claim 4, characterized in that: The power arm (3-1) and the data arm (3-10) have a cavity structure inside, and both form a first air duct; The power arm (3-1) is rotationally connected to one side of the high-frequency box device (4) via a power shaft (3-17); The data arm (3-10) is rotationally 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 rotationally connected to the power arm (3-1) via a connecting piece, and 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 connecting piece, and the other end of the data shaft (3-26) is connected to the high-frequency box device (4); The second driving device is arranged in 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 turntable according to claim 1, characterized in that: The power shaft (3-17) and the data shaft (3-26) are both provided with the second air duct along the axial direction, which is connected to the interior of the high-frequency box device (4).

9. The highly integrated two-axis turntable according to claim 1, characterized in that: One end of the data axis (3-26) located inside the data arm (3-10) is transmission-connected to a second encoder (3-33).

10. The highly integrated two-axis turntable according to claim 1, 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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