CN113720579B - High-precision special measuring and adjusting detection method for solar heat collection window of spacecraft - Google Patents
High-precision special measuring and adjusting detection method for solar heat collection window of spacecraft Download PDFInfo
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- CN113720579B CN113720579B CN202111059561.5A CN202111059561A CN113720579B CN 113720579 B CN113720579 B CN 113720579B CN 202111059561 A CN202111059561 A CN 202111059561A CN 113720579 B CN113720579 B CN 113720579B
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- 238000001514 detection method Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 238000009434 installation Methods 0.000 claims abstract description 25
- 238000005259 measurement Methods 0.000 claims abstract description 23
- 239000012528 membrane Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 6
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a high-precision special measuring and adjusting detection method for a solar heat collection window of a spacecraft, which comprises the following steps of: s1, positioning a special measuring tool: zero calibration of the depth gauge, and calibration of a top plate installed by adopting a high-precision plane and a heat collecting window; s2, preliminary installation of steel wires of a semi-rigid membrane supporting structure: the installation of the film supporting structure is completed according to the requirements of the model, and the intersecting position of the two steel wires is ensured to be parallel to the upper surface of the top plate; s3, measuring a semi-rigid membrane supporting transverse and longitudinal steel wires: and determining the highest position of the transverse and longitudinal steel wires by means of the one-dimensional guide rail, measuring the highest position, locking the depth gauge, determining the height by three times of measurement, and recording the mark position and the measurement data. According to the invention, the stability of the measuring tool is high, the reliable fixing of the measuring tool is realized by taking the roof of the railway vehicle as a direct reference during measurement, the measuring error caused by manual operation in the measuring process is avoided, and the stability of the testing system is increased.
Description
Technical Field
The invention relates to the technical field of detector detection, in particular to a high-precision special measuring and adjusting detection method for a solar heat collection window of a spacecraft.
Background
When the first Mars 'blessing number' in China are used for developing scientific detection on the surface of the Mars, the Mars are exposed to a severe low-temperature environment at night, a solar heat collector is arranged on a Mars roof, and in order to realize the daytime period in the scientific detection stage of the Mars surface, solar energy penetrating through a heat collecting window is efficiently collected through a heat absorbing plate heat absorbing coating, and Mars wind, mars dust and internal equipment of the Mars are isolated through an optical assembly.
The Mars collector consists of a solar heat collecting window and a solar heat absorbing plate. The heat collecting window has the most core functions of sealing and transmitting light, is responsible for transmitting sunlight through an opening on a cabin plate and preventing dust from entering the cabin from the opening, and consists of a film mounting structure and a film supporting structure, wherein the film mounting structure is used for fixing a film and maintaining the shape of the film and is mounted on the upper surface of a top plate; the membrane supporting structure ensures that the membrane keeps a convex state under various working conditions and is arranged on the inner side edge of the opening of the heat collection window on the top plate. The two parts are respectively arranged at different positions of the top plate, and only the metal wires of the supporting structure support the membrane. The film mounting structure and the film supporting structure have strict precision assembly requirements so as to ensure that the frame body of the heat collecting window can synchronously stretch along the radial direction along with the temperature rise and fall, any operation cannot block the synchronous stretching of the heat collecting window, the overlay film damage possibly caused by the measurement and adjustment deviation is measured, and the problem of how to adapt to the precision measurement and adjustment of the spark heat collecting window in the ultralow temperature environment is a key and complex measurement problem.
Disclosure of Invention
The invention aims at: in order to solve the problems, the high-precision special testing and adjusting detection method for the solar heat collection window of the spacecraft is provided.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a high-precision special measuring and adjusting detection method for a solar heat collection window of a spacecraft comprises the following steps:
s1, positioning a special measuring tool: zero calibration of the depth gauge is performed by adopting a high-precision plane, and calibration is performed on a process board on which the heat collecting window is installed;
s2, preliminary installation of steel wires of a semi-rigid membrane supporting structure: the installation of the film supporting structure is completed according to the requirements of the model, and the intersecting position of the two steel wires is ensured to be parallel to the upper surface of the top plate;
s3, measuring a semi-rigid membrane supporting transverse and longitudinal steel wires: determining the highest position of the transverse and longitudinal steel wires by means of a one-dimensional guide rail, measuring the highest position and locking a depth gauge, measuring the confirmed height three times, and recording the marking position and the measurement data;
s4, judging and recording: judging whether 19.5+/-0.5 mm is met or not to confirm whether fine adjustment is carried out or not;
s5, adjusting the mounting position of the steel wire of the membrane supporting structure: according to the measurement data, finely adjusting the mounting position of the screw until the requirement is met;
s6, measuring moment of the fastener and retesting, and sealing the fastener by glue: measuring moment by the fastener, and measuring moment by the fastener after the height is within the range of 19.5+/-0.5 mm;
s7, installing a film installation structure: finishing the installation of the membrane supporting structure according to the requirements of the model;
s8, measuring and checking the distance between the film mounting structures: after the fastening screw is screwed down, a gap of 0.10-0.15 mm is reserved between the lower surface of the frame body of the film installation structure and the upper surface of the top plate;
s9, measuring moment by the fastener and sealing by glue.
Preferably, the measuring special tool in S1 includes: the device comprises a depth gauge, a one-dimensional guide rail, a measuring tool connecting piece and a measuring tool supporting block.
Preferably, the film supporting structures of the heat collecting window structure assembly in the step S1 are respectively fixed on the Mars roof plate structure through screws, and the span of the film supporting structures reaches 600mm.
Preferably, the vertex of the semi-rigid membrane support structure in S3 is measured with high precision: better than 0.1mm.
Preferably, the solar collector has high stability in repeated disassembly and assembly measurement.
Preferably, the solar heat collection window is positioned in the middle of the roof board of the railway vehicle, and the measured position is positioned in the middle part of the position which spans 600mm, and suspended measurement is used.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. in this application: the measuring tool is high in stability, reliable fixing of the measuring tool is achieved by means of the top plate of the train car as a direct reference during measurement, measuring errors caused by manual operation in the measuring process are avoided, and stability of the testing system is improved.
2. In this application: the measuring tool has high precision, the selection precision is 0.02mm depth scale, the simple tool (such as a steel plate scale or a tape measure) is easy to interfere with surrounding instruments and equipment, the measurement cannot be implemented or the ideal measurement precision is difficult to achieve, the high-precision measuring tool needs to adopt a laser tracker, photogrammetry or a laser radar, and the like, the steps are complex, the measured object needs to be stuck with a target or a target ball, and the like, and the requirements of rapid measurement and control of excessive materials of the heat collector are difficult to adapt. The measuring precision of the depth gauge is better than 0.02mm, and the depth gauge is used for controlling the gap between the measuring point and the highest position of the supporting structure to be better than 0.02mm, so that the load brought by the measuring tool to the semi-rigid film supporting structure is weakened.
3. In this application: the device has two degrees of freedom, including the degree of freedom of the depth gauge relative to the guide rail and the degree of freedom of the depth gauge measuring end, and can rapidly slide transversely and longitudinally to rapidly measure the highest position of the positioning film supporting structure.
4. In this application: in order to avoid the systematic error of the measuring tool caused by the large span of 600mm of the heat collection window, a one-dimensional guide rail with high rigidity is adopted. And fixing the depth gauge on the measured surface, and measuring the distance from the highest point of the membrane supporting structure to the cabin board mounting surface by using the up-and-down movement of the depth gauge.
5. In this application: the one-dimensional guide rail with high rigidity is fixed on the top plate of the train car, and only the depth gauge is slid, so that the safety of the tool is good, and collision of products is avoided. The electrostatic protection requirement considered requires that insulation treatment should be performed at the position where the top plate is in contact, and teflon protection is added.
Drawings
Fig. 1 shows a schematic view of a heat collecting window according to an embodiment of the present invention;
FIG. 2 shows a schematic view of two steel wires of a membrane support structure provided in accordance with an embodiment of the present invention;
fig. 3 shows a schematic diagram of a circular ring composition structure prepared from a polyimide material according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a gauge attachment structure provided in accordance with an embodiment of the present invention;
FIG. 5 illustrates a schematic view of a gauge support structure provided in accordance with an embodiment of the present invention;
fig. 6 shows a schematic diagram of a heat collecting window steel wire height measurement and adjustment flow provided according to an embodiment of the invention;
description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides a technical solution:
a high-precision special measuring and adjusting detection method for a solar heat collection window of a spacecraft comprises the following steps:
s1, positioning a special measuring tool: zero calibration of the depth gauge is performed by adopting a high-precision plane, and calibration is performed on a process board on which the heat collecting window is installed;
s2, preliminary installation of steel wires of a semi-rigid membrane supporting structure: the installation of the film supporting structure is completed according to the requirements of the model, and the intersecting position of the two steel wires is ensured to be parallel to the upper surface of the top plate;
s3, measuring a semi-rigid membrane supporting transverse and longitudinal steel wires: determining the highest position of the transverse and longitudinal steel wires by means of a one-dimensional guide rail, measuring the highest position and locking a depth gauge, measuring the confirmed height three times, and recording the marking position and the measurement data;
s4, judging and recording: judging whether 19.5+/-0.5 mm is met or not to confirm whether fine adjustment is carried out or not;
s5, adjusting the mounting position of the steel wire of the membrane supporting structure: according to the measurement data, finely adjusting the mounting position of the screw until the requirement is met;
s6, measuring moment of the fastener and retesting, and sealing the fastener by glue: measuring moment by the fastener, and measuring moment by the fastener after the height is within the range of 19.5+/-0.5 mm;
s7, installing a film installation structure: finishing the installation of the membrane supporting structure according to the requirements of the model;
s8, measuring and checking the distance between the film mounting structures: after the fastening screw is screwed down, a gap of 0.10-0.15 mm is reserved between the lower surface of the frame body of the film installation structure and the upper surface of the top plate;
s9, measuring moment by the fastener and sealing by glue.
And adjusting and locking the widths of the two measuring tool supporting blocks and the one-dimensional guide rail, horizontally moving the fine-adjustment measuring tool connecting piece left and right to enable the fine-adjustment measuring tool connecting piece to find out the highest measuring position of the steel wire of the heat collection window film supporting structure, finely adjusting the depth gauge up and down, and locking the depth gauge.
After a Mars vehicle to be detected is placed on a fixed station to be subjected to preliminary installation of a heat collection window film supporting structure steel wire, assembling and detecting tools:
a. zero calibration of the depth gauge;
b. the mounting measuring tool supporting blocks are respectively arranged on two sides of the one-dimensional guide rail, and the widths of the two measuring tool supporting blocks and the one-dimensional guide rail are adjusted to ensure that the width between the two measuring tool supporting blocks and the two sides of the outline size of the heat collection window to be measured are respectively larger than 50mm;
c. installing a measuring tool connecting piece and a depth gauge, and horizontally moving the fine-tuning measuring tool connecting piece left and right on a one-dimensional guide rail to find out the highest measuring position of the steel wire of the heat collecting window film supporting structure and lock the steel wire;
d. the depth gauge is finely adjusted up and down, so that the contact point of the depth gauge is contacted with an object to be measured, downward pressure can not be generated on the steel wire of the film supporting structure to be measured, the depth gauge is locked, and the measured value is displayed.
The number of the heat collection windows a and b is 2, and the measurement positions are 4, namely the height of the heat collection window a film support transverse steel wire, the height of the heat collection window a film support longitudinal steel wire, the height of the heat collection window b film support transverse steel wire and the height of the heat collection window b film support longitudinal steel wire.
The height design theoretical height of the horizontal and longitudinal steel wires of the film support of the heat collection windows a and b is 19.5+/-0.5 mm.
In the measurement after the installation, the height of the heat collection window a film supporting transverse steel wires and the height of the heat collection window a film supporting longitudinal steel wires meet the requirements. The height of the transverse steel wire supported by the film b of the heat collection window and the height of the longitudinal steel wire supported by the film b of the heat collection window are measured out of tolerance, and the adjustment, installation and re-detection are needed.
The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (2)
1. The high-precision special measuring and adjusting detection method for the solar heat collection window of the spacecraft is characterized in that the solar heat collection window is positioned in the middle of a roof of a train, the measured position is positioned in the middle part of the position with the span of 600mm, and suspended measurement is used, and the detection method comprises the following steps:
s1, positioning a special measuring tool: the depth gauge performs zero calibration;
s2, preliminary installation of steel wires of a semi-rigid membrane supporting structure: the installation of the film supporting structure is completed according to the requirements of the model, the intersecting position of the two steel wires is ensured to be parallel to the upper surface of the top plate of the spark train, and the film supporting structure of the solar heat collection window structure assembly is respectively fixed on the top plate structure of the spark train through screws, and the span of the film supporting structure reaches 600mm;
s3, measuring a semi-rigid membrane supporting transverse and longitudinal steel wires: determining the highest position of the transverse and longitudinal steel wires by means of a one-dimensional guide rail, measuring the highest position and locking a depth scale, measuring the confirmed height three times, and recording the marked highest position and measurement data;
s4, judging and recording: judging whether the measured data meet 19.5+/-0.5 mm or not to confirm whether fine adjustment is performed or not;
s5, adjusting the mounting position of the steel wire of the membrane supporting structure: according to the measurement data, finely adjusting the mounting position of the screw of the membrane supporting structure until the requirement is met;
s6, measuring moment by the screw of the membrane supporting structure and retesting, and sealing the screw of the membrane supporting structure by glue: after the moment is measured by the screw of the film supporting structure, the moment is measured again by the screw of the film supporting structure and the sealing is carried out after the height of the highest point of the transverse and longitudinal steel wires of the semi-rigid film supporting is within the range of 19.5+/-0.5 mm;
s7, installing a film installation structure: the installation of the film installation structure is completed according to the requirements of the model, and the film installation structure is installed on the Mars roof plate structure through film installation structure screws;
s8, measuring and checking the distance between the film mounting structures: after the screws of the film installation structure are screwed, a gap of 0.10-0.15 mm is reserved between the lower surface of the frame body of the film installation structure and the upper surface of the top plate;
s9, measuring moment by a screw of the film installation structure and sealing by glue;
the special tool for measuring in the S1 comprises: the device comprises a depth gauge, a one-dimensional guide rail, a measuring tool connecting piece and a measuring tool supporting block;
step S3, fixing a high-rigidity one-dimensional guide rail on the top plate of the train; installing a measuring tool connecting piece and a depth gauge, and horizontally moving the fine-tuning measuring tool connecting piece left and right on a one-dimensional guide rail to find out the highest measuring position of the steel wire of the heat collecting window film supporting structure and lock the steel wire; the depth gauge is finely adjusted up and down, so that the contact point of the depth gauge is contacted with the steel wire of the film supporting structure to be measured, downward pressure can not be generated on the steel wire of the film supporting structure to be measured, the depth gauge is locked, and the actual measurement value is displayed.
2. The method for high-precision special measuring and adjusting detection of the solar heat collection window of the spacecraft according to claim 1, wherein the selection precision is better than that of a depth scale of 0.02 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111059561.5A CN113720579B (en) | 2021-09-10 | 2021-09-10 | High-precision special measuring and adjusting detection method for solar heat collection window of spacecraft |
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| CN202111059561.5A CN113720579B (en) | 2021-09-10 | 2021-09-10 | High-precision special measuring and adjusting detection method for solar heat collection window of spacecraft |
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| CN113720579A CN113720579A (en) | 2021-11-30 |
| CN113720579B true CN113720579B (en) | 2024-03-12 |
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