CN113428383B - Board-like moonlet guarantor type frock - Google Patents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/10—Artificial satellites; Systems of such satellites; Interplanetary vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
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Abstract
The invention relates to a plate-type small satellite shape-preserving tool, which comprises a + Z plate shape-preserving frame, a load + Y shape-preserving triangular plate, a load-Y shape-preserving triangular plate, a platform + Y shape-preserving triangular plate, a platform-Y shape-preserving triangular plate and a hoisting point; the plate-frame type minisatellite comprises a load module and a platform module; the + Z plate-shaped frame comprises a main body frame, an end reinforcing beam, an overturning interface bracket and a middle reinforcing beam, and forms a closed force transmission structure to control the structural deformation of the satellite; the load + Y shape-preserving set square and the load-Y shape-preserving set square are connected with the load module, and the platform + Y shape-preserving set square and the platform-Y shape-preserving set square are connected with the platform module and used for maintaining the precision of the load module and the platform module under the working conditions of structural decomposition, final assembly test, transportation, transfer, butt joint integration and the like. The shape-preserving tool is compact in structure, meets the requirement of maintaining the structure precision under the assembly working conditions of satellite structure decomposition, module assembly, butt joint integration and the like, and is particularly suitable for plate frame type minisatellites produced in batches.
Description
Technical Field
The invention relates to a plate frame type small satellite shape-preserving tool, belongs to the field of satellite final assembly design, and is particularly suitable for plate frame type low-orbit internet satellites in batch production.
Background
In recent years, the development of global low-orbit Internet constellation fields is in the peak period, the situation that the constellation such as Iridium-Next, OneWeb, Starlink and the like is used as a guide, the situation that the market first-sending position is preempted by "male and deer-chasing" is prominent, and the industry is already in the substantial phase of competitive elimination. In order to improve the batch production efficiency, the low-orbit internet satellite generally adopts a modular design, and a plate-frame type or frame type bearing structure is adopted according to different launching weights based on single plate or module parallel assembly. For example, a small satellite (with a transmission weight of 200kg) represented by OneWeb adopts a plate frame structure instead of a frame structure of an Iridium-Next satellite (with a transmission weight of 860kg), so as to improve the use efficiency of the structure. Different from a frame structure, the assembling reference which is reliable and stable can be provided, and the plate frame type satellite is difficult to meet the requirements of structural deformation and form and position precision required by the satellite assembly by means of the hole site precision and the self rigidity of the structural plate under various working conditions of structural decomposition, module assembly, butt joint integration and the like, thereby causing adverse effects on the satellite assembly quality and seriously restricting the efficiency of satellite batch production.
Disclosure of Invention
The invention solves the technical problems that: the defects of the prior art are overcome, the plate-type minisatellite shape-protecting tooling is provided, the tooling is compact in structure, meets the requirement for maintaining the precision of the whole assembly process structure of satellite structural decomposition, module assembly and butt joint integration, is provided with a load module parking and overturning interface, is flexible and compatible with other ground tooling, and facilitates the implementation of tooling function expansion.
The technical scheme adopted by the invention is as follows: the utility model provides a plate posture moonlet guarantor type frock, includes: + Z board shape-preserving frame, load + Y shape-preserving set square, load-Y shape-preserving set square, platform + Y shape-preserving set square, platform-Y shape-preserving set square and hanging point; the slab-framed minisatellite comprises a load module and a platform module, wherein load module equipment is arranged on a + Z structural slab and a + X structural slab, and platform equipment is arranged on a-Z structural slab and a-X structural slab; for convenience of description, a coordinate system definition is given, with the origin O being the geometric center of the-Z plate, the Z axis pointing along the origin O + the Z plate being positive, the X axis pointing vertically + the X plate being positive, and the Y axis being in a right-handed relationship with the Z and X axes.
The + Z board shape-preserving frame comprises a main body frame, an end reinforcing beam, an overturning interface bracket and a middle reinforcing beam, which jointly form a closed force transmission structure shaped like a Chinese character ri. The main body frame is a frame-plate composite structure with an opening at one end, 2 groups of mounting interfaces are arranged on the top surface and the X side end and are connected with an end reinforcing beam, two groups of mounting interfaces are arranged on the +/-Y side and are connected with lifting points, and a group of mounting interfaces are arranged on the X side and are connected with a turnover interface bracket; and mounting interfaces are arranged at the positions of 4 corners of the bottom surface and connected with a load module parking tool, and mounting holes are formed in the mounting flange of the bottom surface and connected with a + Z structural plate. The end part stiffening beam is of an arch bridge-shaped frame structure, 2 groups of interface flanges are arranged at the bottom of the end part stiffening beam and connected with the main body frame, and the middle part of the end surface of the X side is provided with an overturning interface disc; the other side of the main body frame is provided with a turnover interface bracket which consists of a triangular support bracket and a circular interface disc, the turnover interface bracket is coaxially arranged with the turnover interface disc of the end stiffening beam, and an interface is arranged to be connected with the load module turnover frame vehicle. The middle reinforcing beam is of a comb-tooth-shaped structure and consists of a tubular structural beam and a plurality of cushion blocks with concave-character-shaped sections, and each cushion block mounting flange is provided with a connector to be connected with the Z structural plate.
The load + Y shape-preserving set square and the load-Y shape-preserving set square are symmetrical along the XOZ plane and adopt right angles
The sandwich structure is formed by riveting a reinforcing beam between the butt joint plate and the rear baffle, a triangular reinforcing rib plate is arranged at a right angle position to increase the structural rigidity, and a handle is arranged to facilitate the assembly operation; and a group of mounting interfaces are arranged on the mounting flange of the butt joint plate, the long edge direction is connected with the load module + Z structural plate, and the short edge direction is connected with the load module + X structural plate, so that the precision of the load module under working conditions of decomposition, hoisting, final assembly testing, transportation, transfer, butt joint integration and the like is maintained.
The platform + Y shape-preserving set square and the platform-Y shape-preserving set square are symmetrical along the XOZ plane and adopt right angles
The sandwich structure is formed by riveting a reinforcing beam between a butt plate and a rear baffle, a triangular reinforcing rib plate is arranged at a right angle position to increase the structural rigidity, and a handle is arranged to facilitate the assembly operation; a group of mounting interfaces are arranged on the mounting flange of the butt joint plate, the long edge direction is connected with the platform module-Z structural plate, and the short edge direction is connected with the platform module-X structural plate, so that the precision of the platform module under the working conditions of structure decomposition, assembly test, transportation, transfer, butt joint integration and the like can be maintained; the middle part of the long edge is provided with a U-shaped switching opening avoiding platform device.
The main body frame, the end reinforcing beam and the middle reinforcing beam are formed by welding pipes and plates; the load + Y shape-preserving set square, the load-Y shape-preserving set square, the platform + Y shape-preserving set square and the platform-Y shape-preserving set square are formed by riveting pipes and plates.
Compared with the prior art, the invention has the advantages that:
(1) the shape-preserving tool disclosed by the invention forms a closed force transmission structure in a shape like the Chinese character 'ri' by the main body frame, the end reinforcing beams, the middle reinforcing beam and other structural members, has high bearing capacity, and can better control the structural deformation under heavy-weight load equipment;
(2) the load and platform shape-preserving set square of the shape-preserving tool adopts a pipe and plate riveting sandwich structure and is provided with triangular reinforcing rib plates, so that the structure is light and stable, and the requirements of relative positioning precision and structural assembly precision between the plates under the working conditions of structural decomposition of a load module and a platform module, module assembly, butt joint integration and the like are met;
(3) the shape-preserving tool is provided with lifting, parking and overturning interfaces and is flexibly compatible with other ground tools. Besides the basic function of maintaining the structural precision, the requirements of various use working conditions such as load module parking, transportation and transfer, rotation assembly test, lifting and butt joint and the like can be realized, the universality and expansibility of the tool are greatly improved, and the development cost of the ground tool is saved.
Drawings
FIG. 1 is an exploded view of a form-fitting tool (without a load module);
FIG. 2 is a schematic view of the combination of shape-retaining tooling (including load module);
FIG. 3 is a schematic view of a + Z board shape-preserving frame;
FIG. 4 is a schematic view of load + Y shape triangle/load-Y shape triangle;
FIG. 5 is a schematic view of a platform + Y shape-preserving set square/platform-Y shape-preserving set square;
FIG. 6 is a schematic view of the docking of a load module with a parking tool;
FIG. 7 is a schematic view of the butt joint of a load module and a turnover fixture;
fig. 8 is an exploded/docked view of the load module and platform module.
Detailed description of the preferred embodiment
The invention will be further explained with reference to the drawings. For convenience of description, a coordinate system is defined for convenience of description, an origin O is a geometric center of a-Z structural plate of the satellite, a + Z structural plate of the satellite, to which the Z axis points, along the origin O, is positive, an + X structural plate of the satellite, to which the X axis points vertically, is positive, and the Y axis forms a right-handed system with the Z axis and the X axis.
As shown in fig. 1 and 2, the satellite load module precision maintaining tool of the present invention includes: + Z board shape-preserving frame 1, load + Y shape-preserving set square 2, load-Y shape-preserving set square 3, platform + Y shape-preserving set square 4, platform-Y shape-preserving set square 5, and hoisting point 6; the plate-frame type minisatellite comprises a load module and a platform module, wherein equipment of the load module is arranged on a + Z structural plate and a + X structural plate, and equipment of the platform module is arranged on a-Z structural plate and a-X structural plate.
As shown in fig. 3, the + Z-plate shape-preserving frame 1 includes a main body frame 101, an end reinforcing beam 102, an overturning interface bracket 103, and a middle reinforcing beam 104, and the main body has a length × width × height of about 1500mm × 1500mm × 500 mm; the main body frame 101 is a frame-plate composite structure with an opening at the end + X, and a triangular small rib plate is arranged between frame plates to increase the structural rigidity; the top surface of the end part at the X side is provided with 2 groups of mounting interfaces which are respectively connected with the end reinforcing beam 102, the +/-Y side is respectively provided with two groups of mounting interfaces which are connected with 4 hoisting points 6, and the X side is provided with a group of mounting interfaces which are connected with an overturning interface bracket 103; and mounting interfaces are arranged at the positions of 4 corners of the bottom surface and connected with a load module parking tool, and mounting holes are formed in the mounting flange of the bottom surface and connected with a + Z structural plate.
The end reinforcing beam 102 is an arch bridge type frame structure, 2 groups of interface flanges are arranged at the bottom and connected with the main body frame 101, and a turnover interface disc is arranged in the middle of the end face of the X side; the other side of the main body frame 101 is provided with an overturning interface bracket 103, the overturning interface bracket 103 consists of a triangular support bracket and a circular interface disc, is coaxially arranged with the overturning interface disc on the end reinforcing beam 102, and is provided with an interface connected with a load module overturning frame vehicle.
The middle reinforcing beam 104 is of a comb-tooth-shaped structure and consists of a tubular structural beam and a plurality of cushion blocks with concave-shaped cross sections, the height of each cushion block is 170mm, the requirement of avoiding cables on the satellite is met, and each cushion block mounting flange is provided with an interface to be connected with a + Z structural plate. The middle reinforcing beam 104 is installed in the middle of the main body frame 101, and both ends of the middle reinforcing beam are respectively connected with the parallel frames on both sides of the main body frame 101.
As shown in the figure4, the load + Y shape-preserving set square 2 and the load-Y shape-preserving set square 3 are symmetrical along the XOZ plane and adopt right angles
The sandwich structure is formed by riveting a stiffening beam between a butt joint plate and a rear baffle, and the main body has the size of 900mm multiplied by 550mm multiplied by 60 mm; the triangular reinforcing rib plate is arranged at the right-angle position to increase the structural rigidity, the size of the right-angle side of the reinforcing rib plate is 200mm multiplied by 150mm, the structural rigidity can be ensured, the influence on the assembly operation space can be avoided, and the handle is arranged in the direction of the oblique side of the reinforcing rib plate to facilitate the assembly personnel to grab; a set of mounting interfaces are arranged on the mounting flange of the butt joint plate, the long edge direction is connected with the + Z structural plate, the short edge direction is connected with the + X structural plate, and the mounting flange is used for maintaining the precision of the load module under working conditions of decomposition lifting, final assembly testing, transportation transferring, butt joint integration and the like.
As shown in FIG. 5, the platform + Y shape-preserving set square 4 and the platform-Y shape-preserving set square 5 are symmetrical along the XOZ plane and adopt right angles
The sandwich structure is formed by riveting a stiffening beam between a butt joint plate and a rear baffle, and the main body has the size of 900mm multiplied by 650mm multiplied by 60 mm; the triangular reinforcing rib plate is arranged at the right-angle position to increase the structural rigidity, the size of the right-angle side of the reinforcing rib plate is 200mm multiplied by 150mm, the structural rigidity can be ensured, the influence on the assembly operation space can be avoided, and the handle is arranged in the direction of the oblique side of the reinforcing rib plate to facilitate the assembly personnel to grab; the butt joint plate mounting flange is provided with a group of mounting interfaces, the long side direction is connected with the-Z structural plate, and the short side direction is connected with the-X structural plate, so that the precision maintenance under the working conditions of platform module structure decomposition, final assembly test, transportation and transfer, butt joint integration and the like can be realized; the middle part of the long edge is provided with a U-shaped switching opening avoiding platform device.
As shown in fig. 3, 6 and 7, the shape-preserving tooling is provided with parking and overturning interfaces, is compatible with ground tooling such as a load module parking frame vehicle and a load module overturning frame vehicle, meets the use requirements of various working conditions such as load module parking, transportation, rotation assembly test and the like, and has good tooling universality and expansibility.
As shown in fig. 8, in order to improve the batch efficiency of the satellite, the satellite adopts a modular design and a parallel assembly. Firstly, decomposing a satellite structure into a load module (comprising a + Z structural plate and a + X structural plate) and a platform module (comprising a-Z structural plate and a-X structural plate); then, carrying out general assembly, integration and test work in parallel according to the modules; and after the completion, the load module and the platform module are butted and integrated into a whole satellite. Under the working conditions of structural decomposition, module final assembly and butt joint integration of a satellite load module and a platform module, the problems of structural plate deformation and relative position precision maintenance need to be mainly solved, and the using steps of the shape-preserving tool are as follows (the module butt joint process is carried out in a reverse order):
firstly, the + Z plate shape-preserving frame 1 is connected with a load module + Z structural plate, and the main body frame 101, the end reinforcing beam 102 and the middle reinforcing beam 104 jointly form a closed force transmission structure shaped like a Chinese character 'ri', so that structural deformation of the + Z structural plate under the condition of mounting heavy load equipment is reduced. After the measures are taken, the relative deformation of the structure of the antenna mounting area under the working conditions of satellite lifting, parking and the like is less than or equal to 0.2mm, and the requirement of antenna mounting deformation is met;
secondly, dismantling the satellite + Y side structural plates, replacing the load + Y shape-preserving triangular plate 2 and the platform + Y shape-preserving triangular plate 4, similarly dismantling the satellite-Y side structural plates, replacing the load-Y shape-preserving triangular plate 3 and the platform-Y shape-preserving triangular plate 5, connecting the +/-Y sides of the load module and the platform module into a stable near-triangular force bearing structure by depending on the structural rigidity of the shape-preserving triangular plates, ensuring the relative positioning precision between the load module + Z structural plates and the + X structural plates, and between the platform module-Z structural plates and the-X structural plates, and simultaneously meeting the structural deformation and reassembly precision requirements before and after the decomposition and butt joint of the load module and the platform module. After the measures are taken, the verticality between the load module + Z structural plate and the + X structural plate, and between the platform module-Z structural plate and the-X structural plate can be kept to be less than or equal to 0.2mm, the deformation of the structural plates before and after structural decomposition and butt joint is less than or equal to 0.2mm, the position variation in each direction is less than or equal to 0.2mm, and the requirements of relative positioning precision between the module structural plates, satellite structural deformation and reassembly precision are met;
thirdly, connecting a lifting appliance at the position of the lifting point 6, dismantling the structural connection of the load module and the platform module, lifting and decomposing the load module along the + Z direction, butting the load module and the platform module with other tools respectively, and carrying out general assembly work in parallel.
The shape-preserving tool provided by the invention adopts mature raw materials and a processing technology. The main body frame 101, the end reinforcing beam 102, the middle reinforcing beam 104 and other parts with larger bearing capacity are formed by welding pipes and plates, so that good structural rigidity is realized, and the deformation of the + Z structural plate is better controlled; the load + Y shape-preserving triangular plate 2, the load-Y shape-preserving triangular plate 3, the platform + Y shape-preserving triangular plate 4, the platform-Y shape-preserving triangular plate 5 and the like are used for keeping the relative position precision of the structure, the bearing is light, the integral aesthetic property and the portability are considered, the load-Y shape-preserving triangular plate is formed by riveting a pipe and a plate, the weight of a single plate is about 3.5kg, and the assembly operation is convenient for assembly personnel.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.
Claims (9)
1. The utility model provides a plate posture moonlet guarantor type frock which characterized in that includes: + Z board shape-preserving frame (1), load + Y shape-preserving set square (2), load-Y shape-preserving set square (3), platform + Y shape-preserving set square (4), platform-Y shape-preserving set square (5) and hoisting point (6); the plate-frame type minisatellite comprises a load module and a platform module; the + Z plate shape-keeping frame (1) is connected with the load module + Z structural plate; after the satellite and Y side structural plates are removed, the load and Y shape-preserving set square (2) is respectively connected with the load module and Z structural plate and the load module and X structural plate, and the platform and Y shape-preserving set square (4) are respectively connected with the platform module-Z structural plate and the platform module-X structural plate; after the satellite-Y side structural plate is removed, the load-Y shape-preserving set square (3) is respectively connected with the load module + Z structural plate and the load module + X structural plate, and the platform-Y shape-preserving set square (5) is respectively connected with the platform module-Z structural plate and the platform module-X structural plate; the hoisting point (6) is arranged on the + Z plate shape-preserving frame (1) and is used for hoisting;
the + Z plate shape-preserving frame (1) comprises a main body frame (101), an end reinforcing beam (102), an overturning interface bracket (103) and a middle reinforcing beam (104);
the main body framework (101) is of a framework structure with an opening at the positive X end, triangular rib plates are arranged on the frames, the top surfaces of the two positive X side ends are respectively provided with a mounting interface to be connected with the end reinforcing beam (102), the positive Y side frames are respectively provided with two groups of mounting interfaces to be connected with the lifting points (6), and the negative X side frames are provided with one group of mounting interfaces to be connected with the overturning interface bracket (103); a mounting interface is arranged at the position of an angle 4 on the bottom surface and is connected with a load module parking tool, and a mounting hole is arranged on a mounting flange on the bottom surface and is connected with a + Z structural plate of a satellite; the middle reinforcing beam (104) is arranged in the middle of the main body frame (101), and two ends of the middle reinforcing beam are respectively connected with the frames which are parallel to each other on two sides of the main body frame (101).
2. The plate-type small satellite shape-keeping tool according to claim 1, which is characterized in that: the end reinforcing beam (102) is of an arch bridge-shaped frame structure, two groups of interface flanges are arranged at the bottom of the end reinforcing beam and are connected with the positive X end and the negative X end of the main body frame (101), and an overturning interface disc is arranged in the middle of the end face of the end reinforcing beam (102) on the positive X side.
3. The plate-type small satellite shape-keeping tool according to claim 2, characterized in that: the turnover interface bracket (103) comprises a triangular support bracket and a circular interface disc, the circular interface disc is installed on the main body frame (101) through the triangular support bracket and is coaxially installed with the turnover interface disc of the end reinforcing beam (102), and an interface is arranged on the circular interface disc and is connected with the load module turnover frame vehicle.
4. The plate-type small satellite shape-keeping tool according to claim 3, characterized in that: the middle reinforcing beam (104) is of a comb-tooth-shaped structure and comprises a tubular structural beam and a plurality of cushion blocks, and interfaces are arranged on mounting flanges of the cushion blocks and connected with a + Z structural plate of a satellite.
5. The plate-type small satellite shape-keeping tool according to claim 4, characterized in that: the load + Y shape-preserving set square (2) and the load-Y shape-preserving set square (3) are of right-angle sandwich structures and comprise butt-joint plates and rear baffles, reinforcing beams are riveted between the butt-joint plates and the rear baffles, triangular reinforcing rib plates are arranged at right angles, and handles are arranged at the right angles; and the mounting flange of the butt joint plate is provided with a mounting interface, the long edge direction is connected with the load module and the Z structural plate, and the short edge direction is connected with the load module and the X structural plate.
6. The plate-type small satellite shape-keeping tool according to claim 5, characterized in that: the platform + Y shape-preserving set square (4) and the platform-Y shape-preserving set square (5) are of right-angle sandwich structures and comprise butt joint plates and a rear baffle, reinforcing beams are riveted between the butt joint plates and the rear baffle, triangular reinforcing rib plates are arranged at right angles, and handles are arranged at the right angles; the installation interface is arranged on the installation flange of the butt joint plate, the long edge direction is connected with the platform module-Z structural plate, the short edge direction is connected with the platform module-X structural plate, and the middle part of the long edge is provided with a U-shaped switching opening.
7. The plate-type small satellite shape-keeping tool according to claim 6, characterized in that: the main body frame (101), the end reinforcing beam (102) and the middle reinforcing beam (104) are formed by welding pipes and plates.
8. The plate-type small satellite shape-keeping tool according to claim 7, characterized in that: the load + Y shape-preserving set square (2), the load-Y shape-preserving set square (3), the platform + Y shape-preserving set square (4) and the platform-Y shape-preserving set square (5) are formed by riveting pipes and plates.
9. The use method of the plate frame type minisatellite shape-keeping tool as claimed in any one of claims 1 to 8, which comprises the following steps:
connecting a + Z plate shape-preserving frame (1) with a load module + Z structural plate;
step two, dismantling the satellite and Y side structural plates, respectively connecting the load and Y shape-preserving set square (2) with a load module and a Z structural plate, and connecting the platform and Y shape-preserving set square (4) with a platform module-Z structural plate and a platform module-X structural plate; dismantling the satellite-Y side structural plate, respectively connecting the load-Y shape-preserving set square (3) with the load module + Z structural plate and the load module + X structural plate, and respectively connecting the platform-Y shape-preserving set square (5) with the platform module-Z structural plate and the platform module-X structural plate;
and step three, connecting a lifting appliance at the lifting point (6), removing the structural connection between the load module and the platform module, lifting and decomposing the load module along the + Z direction, and butting the load module and the platform module with other tools respectively.
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| CN202110728438.1A CN113428383B (en) | 2021-06-29 | 2021-06-29 | Board-like moonlet guarantor type frock |
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| CN202110728438.1A CN113428383B (en) | 2021-06-29 | 2021-06-29 | Board-like moonlet guarantor type frock |
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| IT201700091364A1 (en) * | 2017-08-07 | 2019-02-07 | Lettich Silvio | STRUCTURED SET TO CREATE SATELLITE STRUCTURES |
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| CN109484673A (en) * | 2018-12-24 | 2019-03-19 | 深圳航天东方红海特卫星有限公司 | A kind of payload platform separate type remote sensing micro satellite configuration and its assembly method |
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