Attitude adjusting support vehicle and system for spaceborne radar load final assembly and test

Abstract

The invention provides an attitude adjusting support vehicle and system for spaceborne radar load final assembly and test. A posture adjusting support vehicle for spaceborne radar load final assembly and test comprises a back frame with two degrees of freedom, a posture adjusting support vehicle platform with four degrees of freedom and a balancing weight, the back frame is rotationally installed on one side of the top of the posture adjusting support vehicle platform, and the balancing weight is installed on the other side of the top of the posture adjusting support vehicle platform. The six-degree-of-freedom attitude adjusting device is simple in structure and low in cost, has a six-degree-of-freedom attitude adjusting function, and can realize six-degree-of-freedom attitude adjustment of a spaceborne radar product so as to meet the requirements of spaceborne radar load final assembly and test.

Description

Technical Field

[0001] The invention relates to the technical field of attitude adjustment support vehicles, and in particular to an attitude adjustment support vehicle and a system for assembling and testing satellite-borne radar payloads. Background Art

[0002] The technical indicators of satellite-borne radar payloads are becoming increasingly demanding, and a sufficiently large array is required to achieve this. Due to the volume limitations of the launch vehicle, it is inevitable to face the need to fold and gather the antenna and unfold it after launching into orbit. The space unfolding mechanism is a key component of the satellite-borne radar payload system. The satellite-borne flat-panel phased array radar payload antenna generally divides the entire array into several sections of sub-arrays to achieve folding and unfolding in orbit. In order to achieve the final electrical indicators and functions, each section of the sub-array has strict relative position and attitude requirements during the assembly and integration process. This requires that when multiple groups of sub-arrays are installed in alignment with each other, the attitude adjustment bracket vehicle should be used as the basic platform, and the arrays should be moved and rotated for a total of 6 degrees of freedom to adjust and align. After measurement and confirmation, they should be tightened to ensure installation accuracy. In addition, when performing planar near-field testing in a darkroom, the entire array needs to be parallel to the test scanning plane and meet certain parallelism indicators. At this time, the basic platform on which the radar payload is installed also needs to have a 6-degree-of-freedom attitude adjustment function to enable the test work to proceed smoothly.

[0003] Traditional equipment such as flip bracket vehicles and two-axis turntables have complex structures, high costs, and do not have the 6-DOF attitude adjustment function, which limits their use in the assembly and integration of segmented arrays of satellite-borne radar payloads and the attitude adjustment requirements of planar near-field tests. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an attitude adjustment support vehicle and system for assembling and testing satellite-borne radar payloads in view of the deficiencies in the prior art.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: An attitude adjustment support vehicle for assembly and testing of satellite-borne radar payloads, comprising: a back frame with 2 degrees of freedom, an attitude adjustment support vehicle platform with 4 degrees of freedom, and a counterweight block, wherein the back frame is rotatably mounted on one side of the top of the attitude adjustment support vehicle platform, and the counterweight block is mounted on the other side of the top of the attitude adjustment support vehicle platform.

[0006] The beneficial effects of adopting the technical solution of the present invention are: simple structure, low cost, and 6-DOF attitude adjustment function, which can realize 6-DOF attitude adjustment of satellite-borne radar products to meet the requirements of satellite-borne radar payload assembly and testing.

[0007] Furthermore, the posture adjustment support vehicle platform includes: a base platform, an X-direction platform, and a Y-direction platform. The X-direction platform is slidably mounted on the base platform left and right, and the Y-direction platform is slidably mounted on the X-direction platform front and back.

[0008] The beneficial effect of adopting the above further technical solution is that the X-axis platform can realize fine adjustment of movement in the X-axis relative to the base platform, and the Y-axis platform can realize fine adjustment of movement in the Y-axis relative to the X-axis platform.

[0009] Furthermore, the base platform includes: a base frame, a plurality of universal casters, a plurality of lifting mechanisms, an X-direction guide rail, an X-direction slider, an X-direction lead screw and nut mechanism, and an X-direction locking and position indication, wherein the plurality of universal casters are mounted on the bottom of the base frame, the plurality of lifting mechanisms are mounted on the front and rear sides of the base frame, the X-direction guide rail is mounted on the front and rear sides of the base frame, the X-direction slider is mounted on the X-direction guide rail for left and right sliding movement, the X-direction lead screw and nut mechanism is rotatably mounted on the top of the base frame, the X-direction slider and the X-direction lead screw and nut mechanism are both connected to the X-direction platform, and the X-direction locking and position indication are respectively connected to the base frame and the X-direction platform.

[0010] The beneficial effect of adopting the above further technical solution is that the X-axis platform can realize fine adjustment of movement in the X-axis relative to the base platform, and is locked by bolts through the locking seat after it is in place. The posture adjustment support vehicle is composed of the posture adjustment support vehicle platform and universal casters to form a bearing foundation and a walking system, and is pushed manually during walking. The lifting mechanism is used for leveling and lifting the posture adjustment support vehicle platform.

[0011] Furthermore, the lifting mechanism includes: an elevator, a ball-jointed foot cup, and a lifting and adjusting hand wheel, and the ball-jointed foot cup and the lifting and adjusting hand wheel are both connected to the elevator; the X-axis locking and position indication includes: an X-axis locking plate and an X-axis locking seat, the X-axis locking plate is installed on the base frame, the X-axis locking plate is provided with an X-axis slide groove, the X-axis locking seat is installed on the X-axis platform, and the X-axis locking seat is connected to the X-axis slide groove of the X-axis locking plate by bolts; the X-axis screw and nut mechanism is connected to an X-axis bearing seat and an X-axis hand wheel, and the X-axis bearing seat is installed on the base frame.

[0012] The beneficial effect of adopting the above further technical solution is that the X-axis platform can realize fine adjustment of movement in the X-axis relative to the base platform, and can be locked by bolts through the locking seat after it is in place. The X-axis position movement fine adjustment function is realized by the X-axis guide rail, the X-axis slider, the X-axis platform, the X-axis lead screw and the hand wheel, and the rotation of the hand wheel and the lead screw drives the nut to move, so that the X-axis platform can move on the slide rail through the slider support.

[0013] Further, the X-axis platform includes: an X-axis platform frame, a Y-axis guide rail, a Y-axis slider, a Y-axis lead screw and nut mechanism, and a Y-axis locking and position indication, wherein the Y-axis guide rail is installed on the left and right sides of the X-axis platform frame, the Y-axis slider is slidably installed on the Y-axis guide rail, the Y-axis lead screw and nut mechanism is rotatably installed on the top of the X-axis platform frame, the Y-axis slider and the Y-axis lead screw and nut mechanism are both connected to the Y-axis platform, and the Y-axis locking and position indication are respectively connected to the X-axis platform frame and the Y-axis platform.

[0014] The beneficial effect of adopting the above further technical solution is that the Y-axis platform can realize fine adjustment of movement in the Y-axis relative to the X-axis platform, and can be locked by bolts through the locking seat after it is in place. The Y-axis position movement fine adjustment function is composed of and realized by the Y-axis guide rail, the Y-axis slider, the Y-axis platform, the Y-axis lead screw and the hand wheel, and the rotation of the hand wheel and the lead screw drives the nut to move, so that the Y-axis platform can move on the slide rail through the slider support.

[0015] Further, the Y-direction locking and position indication includes: a Y-direction locking plate and a Y-direction locking seat, the Y-direction locking plate is installed on the X-platform frame, the Y-direction locking plate is provided with a Y-direction slide groove, the Y-direction locking seat is installed on the Y-direction platform, and the Y-direction locking seat is connected to the Y-direction slide groove of the Y-direction locking plate by a bolt; the Y-direction screw nut mechanism is connected with a Y-direction bearing seat and a Y-direction handwheel, and the Y-direction bearing seat is installed on the X-platform frame.

[0016] The beneficial effect of adopting the above further technical solution is that the Y-axis platform can realize fine adjustment of movement in the Y-axis relative to the X-axis platform, and can be locked by bolts through the locking seat after being in place.

[0017] Furthermore, the Y-axis platform includes: a Y-platform frame, a rotating shaft seat, a Z-axis rotating top screw seat, and a pad. The rotating shaft seat is installed in the middle part of the Y-platform frame, the back frame is rotatably installed in the rotating shaft seat, the Z-axis rotating top screw seat is installed on the left and right sides of the Y-platform frame, and a jacking bolt is installed on the Z-axis rotating top screw seat, the jacking bolt is abutted against the back frame, and the pad is installed on the top of the Y-platform frame.

[0018] The beneficial effect of adopting the above further technical solution is that the back frame can rotate around the Z axis through the rotating shaft, the Z axis rotating screw seat and the jacking bolts. When the fastening bolts are loosened, the azimuth rotation of the back frame can be achieved through the jacking bolts on both sides of the back.

[0019] Furthermore, the back frame includes: a back frame frame, a rotating shaft, and a locking angle seat, the rotating shaft and the locking angle seat are both installed at the bottom of the back frame frame, the rotating shaft is located in the middle of the back frame frame, and the back frame frame is rotatably connected to the posture adjustment support vehicle platform via the rotating shaft; a fastening bolt is installed in the locking angle seat, and the fastening bolt is connected to the posture adjustment support vehicle platform.

[0020] The beneficial effect of adopting the above further technical solution is: the back frame is rotated around the Z axis by the rotating shaft, the Z axis rotating jack screw seat and the jack bolt. The back frame is installed above the posture adjustment support vehicle platform, centered by the rotating shaft, and locked by a number of fastening bolts. The mounting holes of the fastening bolts on the back frame are arc-shaped. When the fastening bolts are loosened, the azimuth rotation of the back frame is achieved by the jack bolts on both sides of the back. When the requirements are met, the fastening bolts are tightened.

[0021] Furthermore, the locking angle seat is provided with an arc-shaped mounting hole for installing a fastening bolt, and the fastening bolt is installed in the mounting hole; the side of the back frame away from the counterweight block and the locking angle seat are both made of 316L stainless steel.

[0022] The beneficial effects of adopting the above further technical solution are: in order to reduce the influence of gravity on the flatness of the array of the satellite-borne radar payload, the antenna is in a side-standing posture during assembly and integration, and the side surface opposite to the counterweight on the back frame of the attitude adjustment bracket vehicle is the product installation surface, which is a finely machined surface to ensure a high degree of flatness accuracy. 316L stainless steel is used at the mating surfaces with mutual contact and friction to improve wear resistance and improve the stability and reliability of the attitude adjustment bracket vehicle used for assembly and testing of satellite-borne radar payloads.

[0023] In addition, the present invention also provides an attitude adjustment system for assembly and testing of satellite-borne radar payloads, including a plurality of attitude adjustment support vehicles for assembly and testing of satellite-borne radar payloads as described in any one of the above.

[0024] The beneficial effects of adopting the technical solution of the present invention are: simple structure, low cost, and 6-DOF attitude adjustment function, which can realize 6-DOF attitude adjustment of satellite-borne radar products to meet the requirements of satellite-borne radar payload assembly and testing.

[0025] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is one of the structural schematic diagrams of the posture adjustment support vehicle provided in an embodiment of the present invention.

[0027] Figure 2 The second structural schematic diagram of the posture adjustment support vehicle provided in an embodiment of the present invention.

[0028] Figure 3 A schematic structural diagram of a posture adjustment support vehicle provided in an embodiment of the present invention.

[0029] Figure 4 A schematic structural diagram of a base platform provided in an embodiment of the present invention.

[0030] Figure 5 A schematic diagram of the structure of an X-axis platform provided in an embodiment of the present invention.

[0031] Figure 6 A schematic diagram of the structure of a Y-axis platform provided in an embodiment of the present invention.

[0032] Figure 7 A schematic structural diagram of a back frame provided in an embodiment of the present invention.

[0033] Figure 8 A schematic diagram of the structure of the three-stage array installation integration provided in an embodiment of the present invention.

[0034] Explanation of the accompanying symbols: 1. Back frame; 2. Counterweight; 3. Base frame; 4. Universal caster; 5. X-direction guide rail; 6. X-direction slider; 7. X-direction lead screw and nut mechanism; 8. Lifter; 9. Ball joint foot cup; 10. Lifting adjustment hand wheel; 11. X-direction locking plate; 12. X-direction locking seat; 13. X-platform frame; 14. Y-direction guide rail; 15. Y-direction slider; 16. Y-direction lead screw and nut mechanism; 17. Y-direction locking plate; 18. Y-direction locking seat; 19. Y-platform frame; 20. Rotating shaft seat; 21. Z-axis swivel jack screw seat; 22. Pad; 23. Jack bolt; 24. Back frame frame; 25. Rotating shaft; 26. Locking angle seat; 27. Fastening bolt; 28. Eye screw; 29. ​​Attitude adjustment support vehicle platform; 30. Base platform; 31. X-direction platform; 32. Y-direction platform. DETAILED DESCRIPTION

[0035] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention but not to limit the scope of the present invention.

[0036] like Figures 1 to 7 As shown, an embodiment of the present invention provides an attitude adjustment support vehicle for assembly and testing of satellite-borne radar payloads, comprising: a back frame 1 with 2 degrees of freedom, an attitude adjustment support vehicle platform 29 with 4 degrees of freedom, and a counterweight 2, wherein the back frame 1 is rotatably mounted on one side of the top of the attitude adjustment support vehicle platform 29, and the counterweight 2 is mounted on the other side of the top of the attitude adjustment support vehicle platform 29.

[0037] The beneficial effects of adopting the technical solution of the present invention are: simple structure, low cost, and 6-DOF attitude adjustment function, which can realize 6-DOF attitude adjustment of satellite-borne radar products to meet the requirements of satellite-borne radar payload assembly and testing.

[0038] like Figures 1 to 7 As shown, further, the posture adjustment support vehicle platform 29 includes: a base platform 30, an X-axis platform 31, and a Y-axis platform 32. The X-axis platform 31 is slidably installed on the base platform 30 left and right, and the Y-axis platform 32 is slidably installed on the X-axis platform 31 front and back.

[0039] The beneficial effect of adopting the above further technical solution is that the X-axis platform can realize fine adjustment of movement in the X-axis relative to the base platform, and the Y-axis platform can realize fine adjustment of movement in the Y-axis relative to the X-axis platform.

[0040] like Figures 1 to 7 As shown, further, the base platform includes: a base frame 3, a plurality of universal casters 4, a plurality of lifting mechanisms, an X-direction guide rail 5, an X-direction slider 6, an X-direction lead screw and nut mechanism 7, and an X-direction locking and position indication, a plurality of the universal casters 4 are installed at the bottom of the base frame 3, a plurality of the lifting mechanisms are installed at the front and rear sides of the base frame 3, the X-direction guide rail 5 is installed at the front and rear sides of the base frame 3, the X-direction slider 6 is slidably installed on the X-direction guide rail 5, the X-direction lead screw and nut mechanism 7 is rotatably installed at the top of the base frame 3, the X-direction slider 6 and the X-direction lead screw and nut mechanism 7 are both connected to the X-direction platform, and the X-direction locking and position indication are respectively connected to the base frame 3 and the X-direction platform.

[0041] The beneficial effect of adopting the above further technical solution is that the X-axis platform can realize fine adjustment of movement in the X-axis relative to the base platform, and is locked by bolts through the locking seat after it is in place. The posture adjustment support vehicle is composed of the posture adjustment support vehicle platform and universal casters to form a bearing foundation and a walking system, and is pushed manually during walking. The lifting mechanism is used for leveling and lifting the posture adjustment support vehicle platform.

[0042] like Figures 1 to 7 As shown, further, the lifting mechanism includes: an elevator 8, a ball-jointed foot cup 9, and a lifting and adjusting hand wheel 10, and the ball-jointed foot cup 9 and the lifting and adjusting hand wheel 10 are both connected to the elevator 8; the X-axis locking and position indication includes: an X-axis locking plate 11 and an X-axis locking seat 12, the X-axis locking plate 11 is installed on the base frame 3, the X-axis locking plate 11 is provided with an X-axis slide groove, the X-axis locking seat 12 is installed on the X-axis platform, and the X-axis locking seat 12 is connected to the X-axis slide groove of the X-axis locking plate 11 by bolts; the X-axis screw nut mechanism 7 is connected with an X-axis bearing seat and an X-axis hand wheel, and the X-axis bearing seat is installed on the base frame 3.

[0043] The beneficial effect of adopting the above further technical solution is that the X-axis platform can realize fine adjustment of movement in the X-axis relative to the base platform, and can be locked by bolts through the locking seat after it is in place. The X-axis position movement fine adjustment function is realized by the X-axis guide rail, the X-axis slider, the X-axis platform, the X-axis lead screw and the hand wheel, and the rotation of the hand wheel and the lead screw drives the nut to move, so that the X-axis platform can move on the slide rail through the slider support.

[0044] like Figures 1 to 7 As shown, further, the X-axis platform includes: an X-axis platform frame 13, a Y-axis guide rail 14, a Y-axis slider 15, a Y-axis lead screw nut mechanism 16, and a Y-axis locking and position indication, the Y-axis guide rail 14 is installed on the left and right sides of the X-axis platform frame 13, the Y-axis slider 15 is slidably installed on the Y-axis guide rail 14, the Y-axis lead screw nut mechanism 16 is rotatably installed on the top of the X-axis platform frame 13, the Y-axis slider 15 and the Y-axis lead screw nut mechanism 16 are both connected to the Y-axis platform, and the Y-axis locking and position indication are respectively connected to the X-axis platform frame 13 and the Y-axis platform.

[0045] The beneficial effect of adopting the above further technical solution is that the Y-axis platform can realize fine adjustment of movement in the Y-axis relative to the X-axis platform, and can be locked by bolts through the locking seat after it is in place. The Y-axis position movement fine adjustment function is composed of and realized by the Y-axis guide rail, the Y-axis slider, the Y-axis platform, the Y-axis lead screw and the hand wheel, and the rotation of the hand wheel and the lead screw drives the nut to move, so that the Y-axis platform can move on the slide rail through the slider support.

[0046] like Figures 1 to 7 As shown, further, the Y-direction locking and position indication includes: a Y-direction locking plate 17 and a Y-direction locking seat 18, the Y-direction locking plate 17 is installed on the X-platform frame 13, the Y-direction locking plate 17 is provided with a Y-direction slide groove, the Y-direction locking seat 18 is installed on the Y-direction platform, and the Y-direction locking seat 18 is connected to the Y-direction slide groove of the Y-direction locking plate 17 by bolts; the Y-direction screw nut mechanism 16 is connected with a Y-direction bearing seat and a Y-direction handwheel, and the Y-direction bearing seat is installed on the X-platform frame 13.

[0047] The beneficial effect of adopting the above further technical solution is that the Y-axis platform can realize fine adjustment of movement in the Y-axis relative to the X-axis platform, and can be locked by bolts through the locking seat after being in place.

[0048] like Figures 1 to 7As shown, further, the Y-axis platform includes: a Y-platform frame 19, a rotating shaft seat 20, a Z-axis rotating top screw seat 21, and a pad 22. The rotating shaft seat 20 is installed in the middle of the Y-platform frame 19, the back frame 1 is rotatably installed in the rotating shaft seat 20, the Z-axis rotating top screw seat 21 is installed on the left and right sides of the Y-platform frame 19, and a jacking bolt 23 is installed on the Z-axis rotating top screw seat 21, the jacking bolt 23 is abutted against the back frame 1, and the pad 22 is installed on the top of the Y-platform frame 19.

[0049] The beneficial effect of adopting the above further technical solution is that the back frame can rotate around the Z axis through the rotating shaft, the Z axis rotating screw seat and the jacking bolts. When the fastening bolts are loosened, the azimuth rotation of the back frame can be achieved through the jacking bolts on both sides of the back.

[0050] like Figures 1 to 7 As shown, further, the back frame 1 includes: a back frame frame 24, a rotating shaft 25, and a locking angle seat 26, the rotating shaft 25 and the locking angle seat 26 are both installed at the bottom of the back frame frame 24, the rotating shaft 25 is located in the middle of the back frame frame 24, and the back frame frame 24 is rotatably connected to the posture adjustment support vehicle platform 29 through the rotating shaft 25; a fastening bolt 27 is installed in the locking angle seat 26, and the fastening bolt 27 is connected to the posture adjustment support vehicle platform 29.

[0051] The beneficial effect of adopting the above further technical solution is: the back frame is rotated around the Z axis by the rotating shaft, the Z axis rotating jack screw seat and the jack bolt. The back frame is installed above the posture adjustment support vehicle platform, centered by the rotating shaft, and locked by a number of fastening bolts. The mounting holes of the fastening bolts on the back frame are arc-shaped. When the fastening bolts are loosened, the azimuth rotation of the back frame is achieved by the jack bolts on both sides of the back. When the requirements are met, the fastening bolts are tightened.

[0052] A plurality of eye screws 28 are installed on the top of the back frame 1 .

[0053] like Figures 1 to 7 As shown, further, the locking angle seat 26 is provided with an arc-shaped mounting hole for installing a fastening bolt 27, and the fastening bolt 27 is installed in the mounting hole; the side of the back frame 1 away from the counterweight block 2 and the locking angle seat 26 are both made of 316L stainless steel.

[0054] The beneficial effects of adopting the above further technical solution are: in order to reduce the influence of gravity on the flatness of the array of the satellite-borne radar payload, the antenna is in a side-standing posture during assembly and integration, and the side surface opposite to the counterweight on the back frame of the attitude adjustment bracket vehicle is the product installation surface, which is a finely machined surface to ensure a high degree of flatness accuracy. 316L stainless steel is used at the mating surfaces with mutual contact and friction to improve wear resistance and improve the stability and reliability of the attitude adjustment bracket vehicle used for assembly and testing of satellite-borne radar payloads.

[0055] An attitude adjustment support vehicle for assembly and testing of satellite-borne radar payloads provided in an embodiment of the present invention may be an attitude adjustment support vehicle with a simple structure, low cost, and a 6-DOF attitude adjustment function to meet the requirements of assembly and testing of satellite-borne radar payloads.

[0056] A 6-DOF attitude adjustment support vehicle for assembly and testing of satellite-borne radar payloads (an attitude adjustment support vehicle for assembly and testing of satellite-borne radar payloads) provided in an embodiment of the present invention is composed of a back frame, an attitude adjustment support vehicle platform, and a counterweight block.

[0057] The posture adjustment support vehicle platform comprises a base platform, an X-axis platform and a Y-axis platform.

[0058] The base platform consists of a base frame, universal casters, a lift, a ball-jointed foot cup, a lifting adjustment handwheel, an X-direction guide rail slider (X-direction guide rail and X-direction slider), an X-direction lead screw nut bearing seat handwheel (X-direction lead screw nut mechanism), a locking and position indication (X-direction locking and position indication), etc.

[0059] The X-axis platform is composed of the X-axis platform frame, Y-axis guide rail slider (Y-axis guide rail and Y-axis slider), Y-axis screw nut bearing seat handwheel (Y-axis screw nut mechanism), locking and position indication (Y-axis locking plate), locking seat (Y-axis locking seat), etc. The X-axis platform can realize fine adjustment of movement in the X-axis relative to the base platform (base body), and can be locked by bolts through the locking seat after it is in place.

[0060] The Y-axis platform is composed of a Y-axis frame, a rotating shaft seat, a Z-axis rotating screw seat, a pad, a locking seat (locking angle seat), etc. The Y-axis platform can achieve fine adjustment of movement in the Y direction relative to the X-axis platform, and can be locked with bolts through the locking seat after it is in place.

[0061] The back frame is composed of a back frame frame, a rotating shaft, a locking angle seat, etc.

[0062] In order to reduce the influence of gravity on the flatness of the satellite-borne radar payload array, the antenna is in a sideways posture during final assembly. The side surface on the back frame of the attitude adjustment bracket vehicle opposite to the counterweight (counterweight block) is the product installation surface. This installation surface is a finely machined surface to ensure a high level of flatness accuracy.

[0063] The posture adjustment support vehicle is composed of a base platform (position adjustment support vehicle platform) and walking wheels (universal casters) to form a bearing foundation and a walking system, and is pushed manually when walking. The vehicle body is installed with 4 sets of leveling and lifting legs (lifting mechanism). After the support vehicle (position adjustment support vehicle) is in place, the 4 leveling and lifting legs can realize the three-degree-of-freedom movements of the posture adjustment support vehicle along the X-axis, along the Y-axis, and around the Z-axis. The X-axis position movement fine-tuning function is realized by the X-axis guide rail, the X-axis slider, the X-axis platform, the X-axis lead screw and the handwheel (X-axis lead screw nut mechanism). The rotation of the handwheel and the lead screw drives the nut to move, so that the X-axis platform is supported by the slider and moves on the slide rail. The Y-axis position movement fine-tuning function is composed of and realized by the Y-axis guide rail, the Y-axis slider, the Y-axis platform, the Y-axis lead screw and the handwheel (Y-axis lead screw nut mechanism). The rotation of the handwheel and the lead screw drives the nut to move, so that the Y-axis platform is supported by the slider and moves on the slide rail. The back frame is rotated around the Z axis by the rotating shaft, the top screw seat (Z axis rotating top screw seat) and the jacking bolts. The back frame is installed above the attitude adjustment support vehicle platform, centered by the rotating shaft, and locked by a number of fastening bolts. The mounting holes of the fastening bolts on the back frame are arc-shaped. When the fastening bolts are slightly loose (loose), the azimuth rotation of the back frame is achieved by the jacking bolts on both sides of the back. When the requirements are met, the fastening bolts are tightened. The attitude adjustment support vehicle can achieve 6 degrees of freedom attitude adjustment of satellite-borne radar products.

[0064] The main structure of the posture adjustment support vehicle is made of steel with strength not less than Q355B. 316L stainless steel is used in the mating surfaces with mutual contact and friction, such as the pads where the side wall of the back frame contacts the top bolt, the locking angle seat at the bottom of the back frame and the pads on the top of the Y-axis platform, etc. The contact surfaces are not painted.

[0065] like Figure 8 As shown, in addition, the present invention also provides an attitude adjustment system for assembly and testing of satellite-borne radar payloads, including a plurality of attitude adjustment support vehicles for assembly and testing of satellite-borne radar payloads as described in any one of the above.

[0066] The beneficial effects of adopting the technical solution of the present invention are: simple structure, low cost, and 6-DOF attitude adjustment function, which can realize 6-DOF attitude adjustment of satellite-borne radar products to meet the requirements of satellite-borne radar payload assembly and testing.

[0067] like Figure 8As shown in the figure, taking the three-stage satellite-borne radar payload as an example, the middle array is installed on an attitude adjustment support vehicle, and the two ends are installed with deployment hinges. The 6-DOF attitude adjustment function of the attitude adjustment support vehicle ensures that the hinge shafts on both sides are plumb and parallel to the plane near-field test scanning plane. This attitude adjustment support vehicle is locked. The +X side array is installed on another attitude adjustment support vehicle, and is close to the middle array through the walking wheels (universal casters). Through the 6-DOF attitude adjustment function, the +X side array passes through a 0.3mm gap and matches the hinge interface of the middle array to ensure high-precision array flatness. After tightening, the microgravity unloading of the +X side array is completed, and the attitude adjustment support vehicle is withdrawn to install the -X side array. The installation and integration process of the -X side array is the same as that of the +X side array. After the installation of the two side arrays, microgravity deployment tests, repeated deployment accuracy tests, surface accuracy tests, and plane near-field tests can be carried out directly.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An attitude adjustment support vehicle for assembling and testing satellite-borne radar payloads, characterized in that: include: A back frame with 2 degrees of freedom, a posture-adjusting support vehicle platform with 4 degrees of freedom, and a counterweight block, wherein the back frame is rotatably mounted on one side of the top of the posture-adjusting support vehicle platform, and the counterweight block is mounted on the other side of the top of the posture-adjusting support vehicle platform.

2. The attitude adjustment support vehicle for assembling and testing satellite-borne radar payloads according to claim 1 is characterized in that: The posture adjustment support vehicle platform comprises: a base platform, an X-direction platform, and a Y-direction platform. The X-direction platform is slidably mounted on the base platform left and right, and the Y-direction platform is slidably mounted on the X-direction platform front and back.

3. The attitude adjustment support vehicle for assembling and testing satellite-borne radar payloads according to claim 2 is characterized in that: The base platform includes: a base frame, multiple universal casters, multiple lifting mechanisms, X-direction guide rails, X-direction sliders, X-direction lead screw and nut mechanisms, and X-direction locking and position indication. Multiple universal casters are installed at the bottom of the base frame, multiple lifting mechanisms are installed at the front and rear sides of the base frame, the X-direction guide rails are installed at the front and rear sides of the base frame, the X-direction slider is installed on the X-direction guide rails for left and right sliding, the X-direction lead screw and nut mechanism is rotatably installed on the top of the base frame, the X-direction slider and the X-direction lead screw and nut mechanism are both connected to the X-direction platform, and the X-direction locking and position indication are respectively connected to the base frame and the X-direction platform.

4. The attitude adjustment support vehicle for assembling and testing satellite-borne radar payloads according to claim 3 is characterized in that: The lifting mechanism includes: an elevator, a ball-jointed foot cup, and a lifting and adjusting hand wheel, and the ball-jointed foot cup and the lifting and adjusting hand wheel are both connected to the elevator; the X-direction locking and position indication includes: an X-direction locking plate and an X-direction locking seat, and the X-direction locking plate is installed on the base frame, and an X-direction sliding groove is provided on the X-direction locking plate, and the X-direction locking seat is installed on the X-direction platform, and the X-direction locking seat is connected to the X-direction sliding groove of the X-direction locking plate by bolts; the X-direction screw nut mechanism is connected with an X-direction bearing seat and an X-direction hand wheel, and the X-direction bearing seat is installed on the base frame.

5. The attitude adjustment support vehicle for assembling and testing satellite-borne radar payloads according to claim 2 is characterized in that: The X-axis platform comprises: an X-axis platform frame, a Y-axis guide rail, a Y-axis slider, a Y-axis lead screw and nut mechanism, and a Y-axis locking and position indication, wherein the Y-axis guide rail is installed on the left and right sides of the X-axis platform frame, the Y-axis slider is installed on the Y-axis guide rail for forward and backward sliding, the Y-axis lead screw and nut mechanism is rotatably installed on the top of the X-axis platform frame, the Y-axis slider and the Y-axis lead screw and nut mechanism are both connected to the Y-axis platform, and the Y-axis locking and position indication are respectively connected to the X-axis platform frame and the Y-axis platform.

6. The attitude adjustment support vehicle for assembling and testing satellite-borne radar payloads according to claim 5, characterized in that: The Y-direction locking and position indication comprises: a Y-direction locking plate and a Y-direction locking seat, wherein the Y-direction locking plate is mounted on the X-platform frame, the Y-direction locking plate is provided with a Y-direction slide groove, the Y-direction locking seat is mounted on the Y-direction platform, and the Y-direction locking seat is connected to the Y-direction slide groove of the Y-direction locking plate through a bolt; the Y-direction lead screw nut mechanism is connected with a Y-direction bearing seat and a Y-direction handwheel, and the Y-direction bearing seat is mounted on the X-platform frame.

7. The attitude adjustment support vehicle for assembling and testing satellite-borne radar payloads according to claim 2, characterized in that: The Y-axis platform includes: a Y-platform frame, a rotating shaft seat, a Z-axis rotating top screw seat, and a pad. The rotating shaft seat is installed in the middle of the Y-platform frame, the back frame is rotatably installed in the rotating shaft seat, the Z-axis rotating top screw seat is installed on the left and right sides of the Y-platform frame, and a jacking bolt is installed on the Z-axis rotating top screw seat, the jacking bolt is abutted against the back frame, and the pad is installed on the top of the Y-platform frame.

8. The attitude adjustment support vehicle for assembling and testing satellite-borne radar payloads according to claim 1, characterized in that: The back frame includes: a back frame frame, a rotating shaft, and a locking angle seat. The rotating shaft and the locking angle seat are both installed at the bottom of the back frame frame. The rotating shaft is located in the middle of the back frame frame. The back frame frame is rotatably connected to the posture adjustment support vehicle platform via the rotating shaft. A fastening bolt is installed in the locking angle seat, and the fastening bolt is connected to the posture adjustment support vehicle platform.

9. The attitude adjustment support vehicle for assembling and testing satellite-borne radar payloads according to claim 8, characterized in that: The locking angle seat is provided with an arc-shaped mounting hole for installing a fastening bolt, and the fastening bolt is installed in the mounting hole; the side of the back frame away from the counterweight block and the locking angle seat are both made of 316L stainless steel.

10. An attitude adjustment system for assembly and testing of satellite-borne radar payloads, characterized in that: It comprises a plurality of attitude adjustment support vehicles for assembling and testing satellite-borne radar payloads as described in any one of claims 1 to 9.

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