Ground unfolding and fixing device for satellite-borne multi-antenna hierarchical unfolding

Abstract

The invention provides a ground unfolding and fixing device for satellite-borne multi-antenna hierarchical unfolding. The ground unfolding and fixing device comprises an antenna fixing frame vehicle, the unloading supporting rod is vertically mounted at the top of the antenna fixing rack car; the multiple supporting beams are detachably installed on the unloading supporting rods respectively and distributed in the axial direction; each supporting beam can be movably adjusted and locked in the axial direction of the unloading supporting rod. The multiple supporting and adjusting mechanisms are correspondingly installed on the multiple supporting beams, each supporting and adjusting mechanism comprises an antenna fixing support, a connecting rod, a supporting beam support and a clamping block, and an upper frame and a lower frame of each supporting beam support are connected with the upper end face and the lower end face of the corresponding supporting beam through the corresponding clamping block; the two ends of the connecting rod are hinged to the antenna fixing support and the supporting beam support respectively. And the plurality of antenna fixing flat plates are respectively arranged on the antenna fixing bracket. Therefore, the satellite-borne antenna ground unfolding and fixing device has general applicability and can be used for unfolding and fixing multiple types of satellite-borne antennas on the ground.

Description

Technical Field

[0001] The present invention relates to the technical field of satellite ground tests, and in particular to a ground deployment and fixing device for hierarchical deployment of satellite-borne multiple antennas. Background Art

[0002] The traditional deployment and fixing devices used by existing large satellites are generally suitable for multi-antenna systems that are deployed on one side in the same direction. Before the EMC test, the antennas on one side are deployed and fixed to the ground device in a bottom-up order. Affected by the layout space of the cabin, in order to increase the number of antennas installed and expand the installation space, some new high-orbit communication satellites concentrate the deployment axes of the antennas on the same cabin and install them on a coaxial line, while the antenna reflectors are gathered in two directions. At this time, the layout space utilization rate of the satellite cabin is the highest. When conducting ground deployment tests on multiple antennas arranged in this way, they need to be carried out in different levels and directions.

[0003] The traditional ground deployment and fixing device for antennas does not contain a mechanism and cannot be adjusted or rotated during use, so it is not suitable for the application scenario of multi-stage deployment of antennas in stages. Therefore, the traditional ground deployment and fixing device used in antenna ground tests can no longer meet the development and use needs of the new generation of high-orbit communication satellites equipped with multiple antennas. Summary of the invention

[0004] The purpose of the present invention is to provide a ground deployment and fixing device for the hierarchical deployment of multiple satellite-borne antennas, which has universal applicability and can be used for the ground deployment and fixing of various types of satellite-borne antennas; it is easy to reinstall, can ensure the accuracy of the device, and has high adjustment accuracy.

[0005] In order to achieve the above-mentioned object, the present invention provides a ground deployment and fixing device for hierarchical deployment of multiple satellite-borne antennas, comprising:

[0006] An antenna fixed frame car, with feet at the four corners that have height adjustment and fixing functions;

[0007] An unloading support rod vertically mounted on the top of the antenna fixing frame vehicle;

[0008] A plurality of support beams are detachably mounted on the unloading support rod and distributed along the axial direction of the unloading support rod; and each of the support beams can be movably adjusted and locked along the axial direction of the unloading support rod;

[0009] A plurality of support and adjustment mechanisms are mounted on the plurality of support beams in a one-to-one correspondence, and each of the support and adjustment mechanisms comprises an antenna fixing bracket, a connecting rod, a support beam bracket and a clamping block, the upper frame and the lower frame of the support beam bracket are respectively connected to the upper end surface and the lower end surface of the support beam through the clamping block, and the two ends of the connecting rod are respectively hinged to the antenna fixing bracket and the support beam bracket;

[0010] A plurality of antenna fixing plates are respectively mounted on the antenna fixing brackets of the plurality of supporting and adjusting mechanisms corresponding to each other.

[0011] Furthermore, the unloading support rod is composed of a multi-section combination mechanism and common mounting surfaces at the upper and lower ends of the multi-section combination mechanism, each of the combination mechanisms includes an upper steel pipe, a rotating shaft and a lower steel pipe, one end of the support beam is embedded in the rotating shaft to rotate and lock relative to the rotating shaft, the bottom of the rotating shaft is connected to the lower steel pipe through a fixed flange surface, the upper steel pipe is sleeved on the top of the rotating shaft and fixedly connected to the rotating shaft; and the corresponding upper steel pipe and lower steel pipe between two adjacent sections of the combination mechanism overlap, and the unloading support rod is connected and fixed to the upper end of the antenna fixing frame vehicle through the common mounting surface at the lower end.

[0012] Furthermore, the rotating shaft is provided with at least one locking threaded hole, which is used to connect and fix the supporting beam to the locking threaded hole through a screw when the supporting beam rotates to a preset position to lock the supporting beam; the rotating shaft and the upper steel pipe are positioned by a positioning pin.

[0013] Furthermore, the antenna fixing frame vehicle includes a frame chassis, an interface plate, four said anchors, four universal casters and a pedal; the upper end surface of the frame chassis is set as the pedal, the interface plate is installed on the pedal and is connected and fixed to the bottom of the unloading support rod, the four said anchors are installed on the adapter plates at the bottom of the four corners of the frame chassis, and the four said universal casters are respectively installed on the adapter plates.

[0014] Furthermore, the foot includes a screw transmission mechanism and a ball joint base, the screw transmission mechanism includes a handwheel and a screw driven by the handwheel, the screw is assembled with the frame base and the stroke direction of the screw is in the vertical direction, and the screw is driven by the handwheel to adjust the height of the frame base from the ground; the ball joint base is arranged at the bottom of the screw.

[0015] Furthermore, the universal caster is a Fomar caster, and a lead screw nut for height adjustment is provided above the mounting seat of the universal caster.

[0016] Furthermore, the support beam includes a first connecting part and a second connecting part, the first connecting part is connected to the unloading support rod, the clamping block presses the upper frame or the lower frame of the support beam bracket and is fixedly connected to the second connecting part, the upper frame and the lower frame are tightly attached to the second connecting part and move within the limited moving range of the clamping block.

[0017] Furthermore, the skin reinforcement beam of the antenna fixing bracket is connected and fixed to the support beam by means of angle irons and screws.

[0018] Furthermore, the antenna fixing plate is fixed to the nut inside the antenna fixing bracket by means of screws.

[0019] Furthermore, the antenna fixing bracket and the support beam bracket are made of aluminum profiles, and the antenna fixing plate, the connecting rod and the clamping block are made of aluminum alloy material.

[0020] The ground deployment and fixing device for the hierarchical deployment of satellite-borne multi-antennas described in the present invention includes an antenna fixing frame vehicle, with feet with height adjustment and fixing functions distributed at the four corners; an unloading support rod, vertically installed on the top of the antenna fixing frame vehicle; multiple support beams, which are detachably installed on the unloading support rod and distributed along the axial direction of the unloading support rod; and each support beam can be movably adjusted and locked along the axial direction of the unloading support rod; multiple support and adjustment mechanisms, which are installed on multiple support beams one by one, and each support and adjustment mechanism includes an antenna fixing bracket, a connecting rod, a support beam bracket and a clamping block, the upper frame and the lower frame of the support beam bracket are respectively connected to the upper end face and the lower end face of the support beam through the clamping block, and the two ends of the connecting rod are respectively hinged to the antenna fixing bracket and the support beam bracket; multiple antenna fixing plates are respectively installed on the corresponding antenna fixing brackets of the multiple support and adjustment mechanisms. In this way, the present invention has universal applicability and can be used for ground deployment and fixing of multiple types of satellite-borne antennas. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1a to Figure 1b A schematic diagram showing the folded and unfolded states of a satellite antenna is shown;

[0022] Figure 2 A schematic diagram showing the structure of the ground deployment and fixing device for hierarchical deployment of multiple satellite-borne antennas provided in one embodiment of the present invention is shown;

[0023] Figure 3 An exploded view of the structure of the support beam and the unloading support rod of the ground deployment and fixing device for staged deployment of multiple satellite-borne antennas provided by one embodiment of the present invention is shown;

[0024] Figure 4 A schematic structural diagram of the antenna fixing frame vehicle of the ground deployment and fixing device for hierarchical deployment of multiple satellite-borne antennas provided in one embodiment of the present invention is shown;

[0025] Figure 5a to Figure 5b A schematic diagram showing the movable adjustment of the support and adjustment mechanism of the ground deployment and fixing device for staged deployment of multiple satellite-borne antennas provided by an embodiment of the present invention;

[0026] Figure 6a to Figure 6cA schematic diagram showing various stages of a satellite antenna deployment and fixation process in which the ground deployment and fixation device for hierarchical deployment of satellite-borne multiple antennas provided by an embodiment of the present invention is applied. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] It should be noted that references to "one embodiment", "embodiment", "example embodiment", etc. in this specification refer to the embodiment described, which may include specific features, structures or characteristics, but not every embodiment must include these specific features, structures or characteristics. In addition, such expressions do not refer to the same embodiment. Furthermore, when describing specific features, structures or characteristics in conjunction with an embodiment, whether or not there is an explicit description, it has been shown that it is within the knowledge of those skilled in the art to combine such features, structures or characteristics into other embodiments.

[0029] In addition, certain words are used in the specification and subsequent claims to refer to specific components or parts. Those with ordinary knowledge in the relevant field should understand that manufacturers can use different nouns or terms to refer to the same component or part. This specification and subsequent claims do not use differences in names as a way to distinguish components or parts, but use differences in the functions of components or parts as the criteria for distinction. "Including" and "including" mentioned throughout the specification and subsequent claims are open-ended terms and should be interpreted as "including but not limited to". In addition, the word "connected" here includes any direct and indirect electrical connection means. Indirect electrical connection means include connection through other devices.

[0030] According to the satellite development technology process, the satellite EMC (Electromagnetic Compatibility) test requires the antennas on the east and west panels to be deployed for testing. During the EMC test, the satellite is located on a three-axis turntable with the satellite body in a horizontal state. The antennas installed on the east and west panels of the satellite need to be deployed in place in turn and fixed in the deployed state respectively; after the EMC test is completed, the antennas need to be retracted in the unloaded state. The deployment and unloading device must be used for zero-gravity unloading during the deployment and retraction of the antenna reflector.

[0031] The satellite antenna can be folded and unfolded as shown below: Figure 1aAs shown in FIG1 , the satellite antenna in the figure includes three antennas on one side, namely antenna 101, antenna 102 and antenna 103. Since the three antennas on one side need to be unfolded separately, and the antennas need to be unfolded using unloading tooling, the antennas should be unfolded in order from bottom to top. First, the antenna 101 close to the ground is unfolded and fixed, then the middle antenna 102 is unfolded and fixed, and finally the antenna 103 is unfolded and fixed. Antenna 102 is installed at a different position on the satellite than antenna 101 and antenna 103, so the unfolding directions of the three antennas are different. Therefore, when the three antennas are unfolded, the ground unfolding and fixing device needs to have the ability to rotate and adjust. However, the current prior art does not provide an unfolding and fixing device with a rotatable adjustment capability for the hierarchical unfolding of multiple satellite-borne antennas.

[0032] In this regard, the present invention provides a ground deployment and fixing device for the hierarchical deployment of multiple satellite-borne antennas, which can be used to fill the technical gap in the existing field.

[0033] Figure 3 FIG. 1 shows a ground deployment and fixing device for hierarchical deployment of satellite-borne multiple antennas provided by an embodiment of the present invention, comprising an antenna fixing frame vehicle 11, an unloading support rod 12, a plurality of support beams 13, a plurality of support and adjustment mechanisms 14, and a plurality of antenna fixing plates 15. Specifically, this embodiment is applicable to a satellite antenna with three antennas on one side (such as Figure 1a to Figure 1b Taking the example of FIG. 1 as shown in the figure, this embodiment specifically includes three support beams 13, three support and adjustment mechanisms 14 and three antenna fixing plates 15; of course, in other examples, the number of support beams 13, support and adjustment mechanisms 14 and three antenna fixing plates 15 can be adjusted and reinstalled according to their specific application objects, that is, this embodiment does not limit the number of support beams 13, support and adjustment mechanisms 14 and antenna fixing plates 15.

[0034] The antenna fixing frame 11 of this embodiment is provided with feet 113 with height adjustment and fixing functions at the four corners; the unloading support rod 12 is vertically installed on the top of the antenna fixing frame 11; three support beams 13 are respectively detachably installed on the unloading support rod 12 and are distributed along the axial direction of the unloading support rod 12; and each support beam can be movably adjusted and locked along the axial direction of the unloading support rod 12; three support and adjustment mechanisms 14 are installed on the three support beams 13 one by one, that is, each support beam 13 is equipped with a support and adjustment mechanism 14; and each support and adjustment mechanism 14 includes an antenna fixing bracket 141, a connecting rod 1 42. A support beam bracket 143 and a clamping block 144. The upper frame and the lower frame of the support beam bracket 143 are respectively connected to the upper end surface and the lower end surface of the support beam 13 through the clamping block 144. The two ends of the connecting rod 142 are respectively hinged to the antenna fixing bracket 141 and the support beam bracket 143; three antenna fixing plates 15 are respectively installed on the antenna fixing brackets 141 of three corresponding support and adjustment mechanisms 14; through the rotation and locking function of the support beam 13 and the movable adjustment function of the support and adjustment mechanism 14, the overall transportation and parking are realized, which can be applied to various application scenarios of multi-antenna hierarchical deployment of satellites.

[0035] Preferably, the rotatable range of each support beam 13 of the present embodiment is -90° to 90°, and it has a certain fine-tuning ability in the axial and radial directions of the unloading support rod 12, so as to realize the overall transportation and parking; preferably, each installation part of the present embodiment is provided with positioning screws and scale lines to ensure the reinstallation accuracy of the fixed bracket in place.

[0036] The antenna fixing plate 15 is specifically used to fix the antenna deployed on the cabin before the satellite undergoes EMC testing; the antenna fixing plate 15 can be rotated and fine-tuned along with the support beam 13 and the support and adjustment mechanism 14, so that the antenna fixing plate 15 can be accurately fixed to the designated antenna fixing position.

[0037] In an optional embodiment, the unloading support rod 12 is composed of a multi-section assembly mechanism and a common mounting surface at the upper and lower ends of the multi-section assembly mechanism. Figure 3As shown, each of the combined mechanisms includes an upper steel tube 121, a rotating shaft 122 and a lower steel tube 123. One end of the support beam 13 is sleeved on the rotating shaft 122 to rotate and lock relative to the rotating shaft 122. The bottom of the rotating shaft 122 is connected to the lower steel tube 123 through a fixed flange surface. The upper steel tube 121 is sleeved on the top of the rotating shaft 122 and is fixedly connected to the rotating shaft 122. The corresponding upper steel tubes 121 and lower steel tubes 123 between two adjacent sections of the combined mechanisms overlap, and the unloading support rod 12 is connected and fixed to the upper end of the antenna fixing frame vehicle 11 through the common mounting surface at the lower end. Specifically, the unloading support rod 12 of the present embodiment is composed of a three-section combination mechanism and a common mounting surface at the upper and lower ends, and the connection between two adjacent sections of the combination mechanism has an overlapping part, that is, the "lower steel pipe" of the upper combination mechanism of two adjacent combination mechanisms overlaps with the "upper steel pipe" of the lower combination mechanism, and belongs to the same component; each section of the combination mechanism is provided with a rotating shaft 122, so that the support beam 13 can be detachably mounted on the rotating shaft 122 and can rotate coaxially along the rotating shaft 122, that is, at this time, although the support beam 13 is limited at a height position between the upper steel pipe 121 and the lower steel pipe 123, it can be axially rotated and locked along the rotating shaft 122 at this height position.

[0038] Specifically, the steel pipe of the unloading support rod 12 used in this embodiment is provided with reinforcing ribs, and each component of the unloading support rod 12 is made of Q235 material, with a dead weight of 226kg and an envelope size of 400mm*400mm*3050mm; the common mounting surface at the lower end of the unloading support rod 12 is screwed and fixed to the upper end of the antenna fixing frame trolley 11, and the common mounting surface at the upper end is the antenna unloading triangle arm mounting interface, which is used to connect with the antenna unloading tooling.

[0039] Furthermore, at least one locking threaded hole is provided on the rotating shaft 122, which is used to connect and fix the support beam 13 to the locking threaded hole through a screw when the support beam 13 rotates to a preset position to lock the support beam 13; the rotating shaft 122 and the upper steel pipe 121 are positioned by a positioning pin. The rotating shaft 122 is provided with a locking threaded hole. After the antenna is deployed in place, the support beam and the rotating shaft are connected by screws to achieve the fixing of the antenna. The upper steel pipe 121 and the rotating shaft 122 are positioned by a positioning pin to ensure the overall coaxiality of the unloading support rod 12. The two common mounting surfaces at the upper and lower ends ensure a flatness of 0.1mm. The lower end steel pipe surface contains 8 M10 threaded holes to meet the interface requirements of the unloading device for the antenna deployment test. The upper end steel pipe surface contains 8 Φ22 screw through holes and 2 Φ101 positioning pin holes to ensure the reassembly accuracy between the unloading support rod 12 and the antenna fixing frame 11.

[0040] like Figure 4The antenna fixing frame vehicle 11 of this embodiment includes a frame chassis 111, an interface board 112, four feet 113, four universal casters 114 and a pedal 115; the upper end surface of the frame chassis 111 is set as a pedal 115, the interface board 112 is installed on the pedal 115 and connected and fixed to the bottom of the unloading support rod 12, the four feet 113 are installed on the adapter plates at the bottom of the four corners of the frame chassis 111, and the four universal casters 114 are respectively installed on the adapter plates. A lifting point 116 is also provided at each of the four corners of the antenna fixing frame vehicle for lifting, connection and fixing.

[0041] The frame chassis 111 is a frame structure, specifically a form of assembly processing after welding. The main body is welded with a standard square steel pipe of 60*60*3mm. By adding an inclined beam at an appropriate position, a good support effect is provided for the unloading support rod 12. The size of the main frame is 1700mm*1700mm*410mm; the interface plate on the frame chassis 111 is made of Q235 steel plate with a thickness of 14.5mm, and the size matches the fixed flange surface of the unloading support rod 12; adapter plates are set at the four corners of the frame chassis 111 for the installation of the anchor 113, the universal caster 114, and the eye screws.

[0042] Furthermore, the foot 113 of this embodiment includes a screw drive mechanism and a ball joint base, the screw drive mechanism includes a hand wheel and a screw driven by the hand wheel, the screw is connected to the frame base 111 and the stroke direction of the screw is in the vertical direction, the hand wheel drives the screw to move to adjust the height of the frame base 111 from the ground; the ball joint base is arranged at the bottom of the screw. That is, the four foots 113 of this embodiment are in the form of screws, and the hand wheel can be manually rotated through the screw drive to make the ball joint base close to the ground, the hand wheel diameter is φ250mm, the screw adopts Tr40×7, the ball joint base diameter is φ150mm, and a 5mm thick polyurethane pad is pasted on the bottom surface to protect the factory floor. When the caster is on the ground, the height of the plane on the interface plate 112 of the antenna fixing frame vehicle 11 from the ground is 600mm, the total stroke of the screw is 250mm, the foot height is adjusted by the hand wheel, the upward adjustable amount is 200mm, and the longitudinal adjustment range of the foot is -50~200mm.

[0043] The four universal casters 114 are Foma casters, and a screw nut for height adjustment is provided above the mounting seat of the universal caster 114; the model of the Foma caster is GD-150-F, with a rated load of 1500kg, a wheel diameter of 90mm, a wheel width of 55mm, and an installation height of 132mm. The screw nut above the caster mounting seat is used to adjust the height of the caster, and the adjustment amount is ±10mm.

[0044] The antenna fixing frame vehicle 11 of this embodiment can realize the longitudinal adjustment function of the device and is the main body of the load-bearing device. The theoretical height in the working state is 600mm, and the adjustment range is -50mm to 200mm; the envelope size of the antenna fixing frame vehicle 11 is 2230mm×2040mm×600mm to adapt to general container transportation.

[0045] The support beam 13 includes a first connection part and a second connection part. The first connection part is connected to the unloading support rod 12. The clamping block 144 presses the upper frame or the lower frame of the support beam bracket 143 and is connected and fixed to the second connection part. The upper frame and the lower frame are tightly attached to the second connection part and move within the limited range of the clamping block 144. Figure 5a As shown, the block 114 presses the upper frame and the lower frame of the limiting support beam bracket 143, and the upper frame and the lower frame can move radially along the frame under the limiting action of the block 114, that is, the limiting movement range of the block 144 is the direction perpendicular to the block 114 in the figure; and combined with the hinged mode at both ends of the connecting rod 142, the antenna fixing bracket 141 can realize an upward and downward movement.

[0046] See also Figure 5a to Figure 5b Each antenna fixing plate 15 has the ability to fine-tune the translation by ±20 mm in the three directions of X, Y, and Z, and has the ability to rotate by ±2° in the three directions.

[0047] The support and adjustment mechanism 14 is concentrated on the upper and lower sides of the support beam 13. The antenna fixing bracket 141 and the support beam bracket 143 are LECO series aluminum profiles. The antenna fixing plate 15, the connecting rod 142, and the clamping block 144 are made of aluminum alloy. The antenna fixing plate 15 is fixed to the nut inside the antenna fixing bracket 141 by screws.

[0048] The fine-tuning methods through the support and adjustment mechanism 14 include the following:

[0049] (1) ±2° in Y direction and 20mm in Z direction

[0050] The antenna fixing bracket 141 can be adjusted by rotating with the rotating shaft. There are long circular holes with arcs on both sides of the support beam 13, which can complete the adjustment of the support beam bracket 143 in the Y direction by ±2°, and the support beam bracket 143 can be fine-tuned by ±20mm translation along the Z direction, effectively ensuring the spatial position and rigidity of the connecting plate.

[0051] (2) ±2° in X direction and 20mm in Y direction

[0052] The antenna fixing bracket 141 structure can rotate around the lockable axis, and the connecting plate can move in the profile groove, and is limited by the locking screw and the connecting plate to complete the adjustment of the connecting plate in the X direction ±2°. At the same time, it can be fine-tuned up and down along the Y axis, with an adjustment amount of ±20mm, as shown in the figure. It is locked by the locking screw to effectively ensure the spatial position and rigidity of the connecting plate.

[0053] (3) ±2° in Z direction and 20mm in X direction

[0054] like Figure 5b As shown, the skin reinforcement beam on the antenna fixing bracket 141 structure and the support beam 13 of the adjustment structure adopt a split structure, which is fixed by angle irons and screws. Combined with the movement of the screws in the profile groove, an adjustment of ±20mm along the X-axis direction can be achieved, and the connecting plate can be adjusted around the Z direction by ±2°. After the adjustment is completed, it can be fixed by tightening the nuts.

[0055] The ground deployment and fixing device for hierarchical deployment of multiple satellite-borne antennas provided in this embodiment will be described in a specific application example below:

[0056] Before the satellite conducts EMC testing, the antennas on the east and west panels need to be deployed and fixed. The deployment and fixing process is as follows: Figure 6a to Figure 6c The various stages are shown. First, unfold the antenna near the bottom and fix it to the antenna fixing plate at the bottom, rotate the middle support beam and the upper support beam to 90 degrees; unfold the middle antenna again, push and rotate the middle support beam back to the original position, and then fix the antenna to the antenna fixing plate; finally, rotate the top support beam back to the original position, unfold the top antenna and fix it.

[0057] To summarize, the ground deployment and fixing device for the hierarchical deployment of satellite-borne multiple antennas described in the present invention includes an antenna fixing frame vehicle with footings with height adjustment and fixing functions distributed at the four corners; an unloading support rod vertically installed on the top of the antenna fixing frame vehicle; a plurality of support beams, which are respectively detachably installed on the unloading support rod and distributed along the axial direction of the unloading support rod; and each support beam is movably adjusted and locked along the axial direction of the unloading support rod; a plurality of support and adjustment mechanisms, which are installed on the plurality of support beams in a one-to-one correspondence, and each support and adjustment mechanism includes an antenna fixing bracket, a connecting rod, a support beam bracket and a clamping block, the upper frame and the lower frame of the support beam bracket are respectively connected to the upper end face and the lower end face of the support beam through the clamping block, and the two ends of the connecting rod are respectively hinged to the antenna fixing bracket and the support beam bracket; a plurality of antenna fixing plates, which are respectively installed on the antenna fixing brackets of the corresponding plurality of support and adjustment mechanisms. In this way, the axial connection installation height of the device of the present invention can be flexibly selected within the adjustment range of -50mm to 200mm, and the antenna fixing surface can be flexibly selected within the range of -90° to 90°, which is highly flexible compared to the fixed height and fixed angle in the existing devices. Any component of the device of the present invention can be flexibly disassembled, and each part is provided with a hanging point to facilitate lifting and transportation; and each part is provided with a positioning pin during assembly to facilitate reassembly and ensure the accuracy of the device. The device described in the present invention has universal applicability and can be used in the design of ground deployment and fixing devices for various types of satellite-borne antennas.

[0058] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A ground deployment and fixing device for hierarchical deployment of multiple satellite-borne antennas, characterized in that: Included are: An antenna fixed frame car, with feet at the four corners that have height adjustment and fixing functions; An unloading support rod vertically mounted on the top of the antenna fixing frame vehicle; A plurality of support beams are detachably mounted on the unloading support rod and distributed along the axial direction of the unloading support rod; and each of the support beams can be movably adjusted and locked along the axial direction of the unloading support rod; A plurality of support and adjustment mechanisms are mounted on the plurality of support beams in a one-to-one correspondence, and each of the support and adjustment mechanisms comprises an antenna fixing bracket, a connecting rod, a support beam bracket and a clamping block, the upper frame and the lower frame of the support beam bracket are respectively connected to the upper end surface and the lower end surface of the support beam through the clamping block, and the two ends of the connecting rod are respectively hinged to the antenna fixing bracket and the support beam bracket; A plurality of antenna fixing plates are respectively mounted on the antenna fixing brackets of the plurality of supporting and adjusting mechanisms corresponding to each other.

2. The ground deployment and fixing device for hierarchical deployment of multiple satellite-borne antennas according to claim 1, characterized in that: The unloading support rod is composed of a multi-section combination mechanism and common mounting surfaces at the upper and lower ends of the multi-section combination mechanism. Each of the combination mechanisms includes an upper steel pipe, a rotating shaft and a lower steel pipe. One end of the support beam is sleeved on the rotating shaft to rotate and lock relative to the rotating shaft. The bottom of the rotating shaft is connected to the lower steel pipe through a fixed flange surface. The upper steel pipe is sleeved on the top of the rotating shaft and fixedly connected to the rotating shaft. The corresponding upper steel pipe and lower steel pipe between two adjacent sections of the combination mechanism overlap. The unloading support rod is connected and fixed to the upper end of the antenna fixing frame vehicle through the common mounting surface at the lower end.

3. The ground deployment and fixing device for hierarchical deployment of multiple satellite-borne antennas according to claim 2, characterized in that: At least one locking threaded hole is provided on the rotating shaft, which is used to connect and fix the supporting beam to the locking threaded hole through a screw when the supporting beam rotates to a preset position so as to lock the supporting beam; a positioning pin is used to position the rotating shaft and the upper steel pipe.

4. The ground deployment and fixing device for hierarchical deployment of multiple satellite-borne antennas according to claim 1, characterized in that: The antenna fixing frame vehicle includes a frame chassis, an interface board, four anchors, four universal casters and a pedal; the upper end surface of the frame chassis is set as the pedal, the interface board is installed on the pedal and is connected and fixed to the bottom of the unloading support rod, the four anchors are installed on the adapter plates at the bottom of the four corners of the frame chassis, and the four universal casters are respectively installed on the adapter plates.

5. The ground deployment and fixing device for hierarchical deployment of multiple satellite-borne antennas according to claim 4, characterized in that: The foot includes a screw transmission mechanism and a ball joint base, the screw transmission mechanism includes a handwheel and a screw driven by the handwheel, the screw is assembled with the frame base and the stroke direction of the screw is in the vertical direction, and the screw is driven by the handwheel to adjust the height of the frame base from the ground; the ball joint base is arranged at the bottom of the screw.

6. The ground deployment and fixing device for hierarchical deployment of multiple satellite-borne antennas according to claim 4, characterized in that: The universal caster is a Fomar caster, and a lead screw nut for height adjustment is provided above the mounting seat of the universal caster.

7. The ground deployment and fixing device for hierarchical deployment of multiple satellite-borne antennas according to claim 1, characterized in that: The support beam includes a first connecting part and a second connecting part, the first connecting part is connected to the unloading support rod, the clamping block presses the upper frame or the lower frame of the support beam bracket and is fixedly connected to the second connecting part, the upper frame and the lower frame are tightly attached to the second connecting part and move within the limited moving range of the clamping block.

8. The ground deployment and fixing device for hierarchical deployment of multiple satellite-borne antennas according to claim 1, characterized in that: The skin reinforcement beam of the antenna fixing bracket is connected and fixed to the support beam by angle irons and screws.

9. The ground deployment and fixing device for hierarchical deployment of multiple satellite-borne antennas according to claim 1, characterized in that: The antenna fixing plate is fixed to the nut inside the antenna fixing bracket by screws.

10. The ground deployment and fixing device for hierarchical deployment of multiple satellite-borne antennas according to claim 1, characterized in that: The antenna fixing bracket and the support beam bracket are made of aluminum profiles, and the antenna fixing plate, the connecting rod and the clamping block are made of aluminum alloy material.

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