CN112900656A - Method for local sealing and repairing in space base construction - Google Patents
Method for local sealing and repairing in space base construction Download PDFInfo
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- CN112900656A CN112900656A CN202110051387.3A CN202110051387A CN112900656A CN 112900656 A CN112900656 A CN 112900656A CN 202110051387 A CN202110051387 A CN 202110051387A CN 112900656 A CN112900656 A CN 112900656A
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- sealing
- splicing
- sewing
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/39—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/38—Arched girders or portal frames
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
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Abstract
The invention discloses a method for local sealing and repairing in space base construction, which belongs to the field of space base construction and comprises the following steps: s1: positioning a first brick to be spliced and placing the first spliced brick at a preset position; s2: splicing the first brick to be spliced and the second brick to be spliced to form a splicing gap; s3: and positioning the splicing part gap by using a liquid drop sewing robot, and melting a sewing material to drop to the positioned splicing gap so as to seal and sew the splicing gap to form a sealing line. Compared with the original methods of building space bases by building bricks, stacking and splicing, the method adopts metal or nonmetal liquid drops to seal and strengthen spliced joints, and is simple and convenient to operate; the sealing performance of the space base and the resistance capability of severe environments such as lunar shock resistance, thermal shock resistance, micrometeor meteorite shock resistance and the like are greatly improved.
Description
Technical Field
The invention belongs to the field of space base construction, and particularly relates to a method for local sealing and repairing in space base construction.
Background
At present, people have started to construct ideas about space bases, and a series of space base construction schemes are proposed. For example, the modular base is a base module which is suitable for human survival and is transmitted to the earth planet such as the moon and the mars in sequence, and the assembly and the linkage are carried out on the surface of the moon or the mars. And a construction method of the inflatable base, the underground lunar surface shelter and other bases. With the development of 3D printing technology and robot technology, people propose a new scheme, such as obtaining soil bricks by adopting a sintering method, and assembling and combining the soil bricks by using a robot to build a space base. The method is applied to the efficient construction of space bases such as lunar bases or Mars bases.
According to the lunar soil concrete suitable for extrusion and the preparation method thereof disclosed in patent CN110405903A, the construction of a large lunar surface facility is realized by adopting a mode of extruding lunar soil concrete, and although the integral forming of complex-shaped facilities can be realized, the constraint is too rigid, so that the lunar soil concrete is difficult to cope with the alternate environments of high and low temperatures of the lunar surface and frequent lunar earthquakes. The 3D printing device facing the surface of the moon in the microgravity vacuum environment in the patent CN110039771A adopts a closed forming cavity to complete the in-situ manufacturing of the moon, and the forming size thereof has great limitation, so that large-scale lunar facilities such as a base and a shelter cannot be realized. The cable-film-block structure suitable for the space base and the construction method thereof disclosed in the patent CN 111502007A are various in components and complex in process, and are not suitable for unmanned operation in the construction process of the space base.
But the space base facilities assembled by the robots have a large number of assembly gaps, so that the strength is not high, and the space base facilities cannot cope with the severe environment of the space, such as frequent moon shock on the moon surface and extremely large day temperature difference on the Mars surface, and are deformed and loosened; and because the air-tight structure is not sealed, the indoor heat preservation and the protection of oxygen are not protected from leakage.
Disclosure of Invention
Aiming at the defects or the improvement requirements in the prior art, the invention provides a method for local sealing and repairing in space base construction, which aims to adopt metal or nonmetal liquid drops to seal and sew gaps generated in the space base construction to obtain good splicing quality and splicing strength, thereby solving the technical problem that the splicing gap is low in strength and cannot cope with the severe environment of the space.
To achieve the above objects, according to one aspect of the present invention, there is provided a method of local sealing and repairing in space base construction, comprising:
s1: positioning a first brick to be spliced and placing the first spliced brick at a preset position;
s2: splicing the first brick to be spliced and the second brick to be spliced to form a splicing gap;
s3: and positioning the splicing part gap by using a liquid drop sewing robot, and melting a sewing material to drop to the positioned splicing gap so as to seal and sew the splicing gap to form the sealing line.
In one embodiment, the step S3 includes:
s301: positioning the splicing part gap by using a liquid drop sewing robot;
s302: and heating and melting the sewing material through the focused laser beam, so that the sewing material is dropped at the splicing gap, and the splicing gap is sealed and sewn to form the sealing line.
In one embodiment, the step S302 includes:
fixing a fiber laser with the wavelength of 1064nm and the power of 500-6000W or a carbon dioxide laser with the wavelength of 10.6 mu m and the power of 500-6000W at the tail end of a mechanical arm of the droplet sewing robot, and using the continuous fiber laser to emit laser beams to melt an aluminum alloy metal wire so as to generate metal aluminum droplets to the splicing gap to seal and sew the splicing gap to form the sealing line.
In one embodiment, the diameter of the aluminum alloy wire is 0.8-3 mm; the wire feeding speed is 10-200 mm/s, and the sealing and sewing speed of the liquid drops is 200-1000 mm/s.
In one embodiment, the step S302 includes:
fixing a continuous fiber laser with the wavelength of 1064nm and the power of 500-6000W or a carbon dioxide laser with the wavelength of 10.6 mu m and the power of 500-6000W at the tail end of a mechanical arm of the droplet sewing robot, and using the continuous fiber laser to emit laser beams to melt titanium alloy metal wires so as to generate metal droplets to the splicing gap, so that the splicing gap is sealed and sewn to form the sealing line.
In one embodiment, the diameter of the titanium alloy metal wire is 10-1200 mm/s; the wire feeding speed is 0.8-3 mm, and the sealing and sewing speed of the liquid drops is 200-1000 mm/s.
In one embodiment, the step S3 includes:
s301: positioning the splicing part gap by using a liquid drop sewing robot;
s302: and fixing induction heating equipment at the tail end of a mechanical arm of the liquid drop suturing robot, inserting metal wires serving as suturing materials into an induction heating coil, forming molten metal aluminum liquid drops by means of gravity through molten metal generated by induction heating, sealing and suturing the abutted seams, and forming the sealing line.
In one embodiment, the number of turns of the induction heating coil is 2-10, and the diameter is 3-8 mm; the current oscillation frequency of the induction heating is 300-1000 kHz, and the output power is 2-10 kW;
the metal wire is an aluminum alloy with a melting point lower than a melting point threshold, a resistivity lower than a resistance threshold and a magnetic conductivity lower than a magnetic conductance threshold, the wire diameter is 0.8-3 mm, and the wire feeding speed is 1-50 mm/s.
In one embodiment, in step S3: when the laser beam is used as a heat source, the sewing material is an aluminum metal wire, a titanium metal wire or an epoxy resin high-molecular nonmetal material, and the diameter of the sewing material is 0.8-3 mm.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:
(1) compared with the original method of building a space base by brick stacking and splicing and the like, the method disclosed by the invention has the advantages that the original base is sealed and reinforced, and the sealing performance and the resistance to severe environments such as lunar shock, thermal shock and micrometeor meteorite shock are greatly improved;
(2) the invention provides a method for sealing and reinforcing the spliced seams by adopting metal or nonmetal liquid drops, which is simple and convenient to operate and is an optimization and supplement to the original construction scheme;
(3) the bricks sintered by the soil are obvious brittle materials, the weldability is extremely poor, and the effect is extremely poor if the bricks are sewed by welding. The method adopts metal or nonmetal liquid drops for sealing and bonding, can ensure the shaping and strength and the fatigue life of the splicing part, and has feasibility in actual operation.
Drawings
FIG. 1 is a flow chart of a method for local sealing and repair in space base construction according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating the operation of local sealing and repairing in space base construction according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The invention provides a method for local sealing and repairing in space base construction, which comprises the following steps of: s1: positioning a first brick to be spliced and placing the first spliced brick at a preset position; s2: splicing the first brick to be spliced and the second brick to be spliced to form a splicing gap; s3: and positioning the splicing part gap by using a liquid drop sewing robot, and melting the sewing material to drop to the positioned splicing gap so as to seal and sew the splicing gap to form a sealing line.
In one embodiment, step S3 includes: s301: positioning the splicing part gap by using a liquid drop sewing robot; s302: and heating and melting the sewing material through the focused laser beam, so that the sewing material drops at the splicing gap to seal and sew the splicing gap to form a sealing line.
In one embodiment, step S302 includes: fixing a fiber laser with the wavelength of 1064nm and the power of 500-6000W or a carbon dioxide laser with the wavelength of 10.6 mu m and the power of 500-6000W at the tail end of a mechanical arm of the liquid drop sewing robot, and utilizing the continuous fiber laser to emit laser beams to melt the aluminum alloy metal wires so as to generate metal aluminum liquid drops to the splicing gap to seal and sew the splicing gap to form a sealing line. In one embodiment, the diameter of the aluminum alloy wire is 0.8-3 mm; the wire feeding speed is 10-200 mm/s, and the sealing and sewing speed of the liquid drops is 200-1000 mm/s.
Specifically, as shown in fig. 2 (a), a robot positions and prepares a first brick 1 to be spliced and places the brick to be spliced to a proper position; as shown in fig. 2 (b), the robot positions and places the second brick 2 to be spliced with the first brick 1 to be spliced; as shown in fig. 2 (c), the robot of the droplet suture robot is positioned to the gap to be sutured, the power of a continuous fiber laser with the wavelength of 1064nm fixed at the tail end of the robot arm is set to 1000W, the suture material 4 is an aluminum alloy wire with the diameter of 2mm and the wire feeding speed of 200mm/s, and the generated molten aluminum metal droplets seal and suture the abutted seam. The sealing and sewing speed of the liquid drops is 1m/s, namely the moving speed of the liquid drop nozzle is 1 m/s; the seal line 5 shown in fig. 2 (c) is finally formed.
In one embodiment, step S302 includes: fixing a continuous fiber laser with the wavelength of 1064nm and the power of 500-6000W or a carbon dioxide laser with the wavelength of 10.6 mu m and the power of 500-6000W at the tail end of a mechanical arm of the droplet sewing robot, and emitting laser beams by using the continuous fiber laser to melt titanium alloy metal wires so as to generate metal droplets to a splicing gap, so that the splicing gap is sealed and sewn to form a sealing line. In one embodiment, the diameter of the titanium alloy metal wire is 0.8-3 mm; the wire feeding speed is 10-1200 mm/s, and the sealing and sewing speed of the liquid drops is 200-1000 mm/s.
Specifically, as shown in fig. 2 (a), a robot positions and prepares a first brick 1 to be spliced and places the brick to be spliced to a proper position; as shown in fig. 2 (b), the robot positions to place the second brick 2 to be spliced with the first brick 1 to be spliced; as shown in fig. 2 (c), the robot of the droplet suture robot is positioned to the gap to be sutured, the power of a continuous fiber laser with the wavelength of 1064nm fixed at the tail end of the robot arm is set to 2000W, the suture material 4 is a titanium alloy wire with the diameter of 2mm and the wire feeding speed of 100mm/s, and the generated molten metal aluminum droplets seal and suture the abutted seam. The sealing and sewing speed of the liquid drops is 1m/s, namely the moving speed of the liquid drop nozzle is 1 m/s; the seal line 5 shown in fig. 2 (c) is finally formed.
In one embodiment, step S3 includes: s301: positioning the splicing part gap by using a liquid drop sewing robot; s302: an induction heating device is fixed at the tail end of a mechanical arm of the liquid drop suturing robot, a metal wire used as a suturing material is inserted into an induction heating coil, molten metal generated by induction heating forms molten metal aluminum drops by means of gravity to carry out sealing suturing on abutted seams, and a sealing line is formed. In one embodiment, the number of turns of the induction heating coil is 2-10, and the diameter is 3-8 mm; the current oscillation frequency of induction heating is 300-1000 kHz, and the output power is 2-10 kW; the metal wire is an aluminum alloy with a melting point lower than a melting point threshold, a resistivity lower than a resistance threshold and a magnetic conductivity lower than a magnetic conductance threshold, the wire diameter is 0.8-3 mm, and the wire feeding speed is 1-50 mm/s.
Specifically, as shown in fig. 2 (a), a robot positions and prepares a first brick 1 to be spliced and puts the brick to a proper position; as shown in fig. 2 (b), the robot positions to place the second brick 2 to be spliced with the first brick 1 to be spliced; as shown in fig. 2 (c) and (d), the robot of the droplet suture robot is positioned to the gap to be sutured, the end of the robot arm is fixed with an induction heating device 6, a wire as a suture material is inserted into an induction heating coil, the number of turns of the induction heating coil is 4, and the diameter of the induction heating coil is 6 mm. The current oscillation frequency of induction heating is 700kHz, and the output power is 10 kW. The metal wires are aluminum alloy with low melting point, low resistivity and low relative magnetic conductivity, the wire diameter is 2mm, and the wire feeding speed is 50 mm/s. Molten metal aluminum generated by induction heating forms molten metal aluminum drops by means of gravity to seal and sew the abutted seams. The sealing and sewing speed of the liquid drops is 1m/s, namely the moving speed of the liquid drop nozzle is 1 m/s; the seal line 5 is finally formed.
In one embodiment, in step S3: when the laser beam is used as a heat source, the sewing material is an aluminum metal wire, a titanium metal wire or an epoxy resin high-molecular nonmetal material, and the diameter of the sewing material is 0.8-3 mm.
The material of the suture material is matched according to the heat source, if the laser is selected as the heat source, the material can be aluminum and titanium metal wires, or nonmetal wires such as epoxy resin, and if the induction heating is selected, the material can only be the aluminum and titanium metal wires.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (9)
1. A method for local sealing and repairing in space base construction is characterized by comprising the following steps:
s1: positioning a first brick to be spliced and placing the first spliced brick at a preset position;
s2: splicing the first brick to be spliced and the second brick to be spliced to form a splicing gap;
s3: and positioning the splicing part gap by using a liquid drop sewing robot, and melting a sewing material to drop to the positioned splicing gap so as to seal and sew the splicing gap to form a sealing line.
2. A method of local sealing and repair in space base construction according to claim 1, wherein said step S3 includes:
s301: positioning the splicing part gap by using a liquid drop sewing robot;
s302: and heating and melting the sewing material through the focused laser beam, so that the sewing material is dropped at the splicing gap, and the splicing gap is sealed and sewn to form the sealing line.
3. A method of local sealing and repair in space base construction according to claim 2, wherein said step S302 includes:
fixing a fiber laser with the wavelength of 1064nm and the power of 500-6000W or a carbon dioxide laser with the wavelength of 10.6 mu m and the power of 500-6000W at the tail end of a mechanical arm of the droplet sewing robot, and utilizing the laser to emit laser beams to melt the aluminum alloy metal wires and generate metal aluminum droplets to the splicing gap so as to seal and sew the splicing gap to form the sealing line.
4. A method of local sealing and repair in space base construction according to claim 3 wherein said aluminum alloy wire has a diameter of 0.8 to 3 mm; the wire feeding speed is 10-200 mm/s, and the sealing and sewing speed of the liquid drops is 200-1000 mm/s.
5. A method of local sealing and repair in space base construction according to claim 2, wherein said step S302 includes: fixing a continuous fiber laser with the wavelength of 1064nm and the power of 500-6000W or a carbon dioxide laser with the wavelength of 10.6 mu m and the power of 500-6000W at the tail end of a mechanical arm of the droplet sewing robot, and using the laser to emit laser beams to melt titanium alloy metal wires to generate metal droplets to the splicing gap so as to seal and sew the splicing gap to form the sealing line.
6. A method of local sealing and repair in space base construction according to claim 5 wherein said titanium alloy wire has a diameter of 0.8 to 3 mm; the wire feeding speed is 10-1200 mm/s, and the sealing and sewing speed of the liquid drops is 200-1000 mm/s.
7. A method of local sealing and repair in space base construction according to claim 1, wherein said step S3 includes:
s301: positioning the splicing part gap by using a liquid drop sewing robot;
s302: and fixing induction heating equipment at the tail end of a mechanical arm of the liquid drop suturing robot, inserting metal wires serving as suturing materials into an induction heating coil, forming molten metal aluminum liquid drops by means of gravity through molten metal generated by induction heating, sealing and suturing the abutted seams, and forming the sealing line.
8. A method of local sealing and repair in space based construction according to claim 7,
the number of turns of the induction heating coil is 2-10, and the diameter of the induction heating coil is 3-8 mm; the current oscillation frequency of the induction heating is 300-1000 kHz, and the output power is 2-10 kW;
the metal wire is an aluminum alloy with a melting point lower than a melting point threshold, a resistivity lower than a resistance threshold and a magnetic conductivity lower than a magnetic conductance threshold, the wire diameter is 0.8-3 mm, and the wire feeding speed is 1-50 mm/s.
9. A method of local sealing and repair in space base construction as claimed in claim 1, wherein in said step S3: when the laser beam is used as a heat source, the sewing material is an aluminum metal wire, a titanium metal wire or an epoxy resin high-molecular nonmetal material, and the diameter of the sewing material is 0.8-3 mm.
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| CN202110051387.3A CN112900656B (en) | 2021-01-15 | 2021-01-15 | Method for local sealing and repairing in space base construction |
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| CN202110051387.3A CN112900656B (en) | 2021-01-15 | 2021-01-15 | Method for local sealing and repairing in space base construction |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002066776A (en) * | 2000-08-30 | 2002-03-05 | Showa Denko Kk | Laser beam welding process |
| CN102658430A (en) * | 2012-05-13 | 2012-09-12 | 徐林波 | Novel laser cladding and welding repairing process of refractory material |
| CN105237026A (en) * | 2015-11-12 | 2016-01-13 | 天津理工大学 | Ceramic/ceramic connection method for regulating and controlling middle solder layer through multi-physical-field coupling |
| CN105531060A (en) * | 2013-07-16 | 2016-04-27 | 伊利诺斯工具制品有限公司 | Additive manufacturing systems for and a method of surface overlay before joining, using a plurality of anchoring materials |
| CN209179301U (en) * | 2018-11-12 | 2019-07-30 | 王庆忠 | A kind of novel architecture brick |
-
2021
- 2021-01-15 CN CN202110051387.3A patent/CN112900656B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002066776A (en) * | 2000-08-30 | 2002-03-05 | Showa Denko Kk | Laser beam welding process |
| CN102658430A (en) * | 2012-05-13 | 2012-09-12 | 徐林波 | Novel laser cladding and welding repairing process of refractory material |
| CN105531060A (en) * | 2013-07-16 | 2016-04-27 | 伊利诺斯工具制品有限公司 | Additive manufacturing systems for and a method of surface overlay before joining, using a plurality of anchoring materials |
| CN105237026A (en) * | 2015-11-12 | 2016-01-13 | 天津理工大学 | Ceramic/ceramic connection method for regulating and controlling middle solder layer through multi-physical-field coupling |
| CN209179301U (en) * | 2018-11-12 | 2019-07-30 | 王庆忠 | A kind of novel architecture brick |
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