CN115899048B - Space station anti-drifting screw assembly - Google Patents
Space station anti-drifting screw assembly Download PDFInfo
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- CN115899048B CN115899048B CN202211382594.8A CN202211382594A CN115899048B CN 115899048 B CN115899048 B CN 115899048B CN 202211382594 A CN202211382594 A CN 202211382594A CN 115899048 B CN115899048 B CN 115899048B
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- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 238000002474 experimental method Methods 0.000 claims description 23
- 230000002265 prevention Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000692569 Stylephorus chordatus Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
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- 238000003032 molecular docking Methods 0.000 description 1
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Abstract
The invention discloses a space station anti-drifting screw assembly, which comprises a long screw, wherein the front end of the long screw is provided with a threaded hole and a first step, the rear end of the long screw is provided with an external thread and a second step, the first step and the second step limit the assembly between a front equipment mounting plate and a rear equipment mounting plate, the front end of the long screw is in fastening connection with the front equipment mounting plate through an anti-loosening assembly and the threaded hole, and the rear end of the long screw is in fastening connection with the rear equipment mounting plate through an external thread and a threaded protective cap or in fastening connection with the rear equipment mounting plate and an experimental cabinet through an external thread and an internal threaded hole of the experimental cabinet. The invention adopts the double mounting surfaces to form the fixed beam structures at two ends, thereby ensuring the mechanical property born by the equipment in the transmitting stage, adopts the double steps to form the structure limit, ensures that the screw rod component cannot fall off, simultaneously has the loosening-preventing function, and solves the problem of preventing the drift of small parts such as screws, gaskets and the like.
Description
Technical Field
The invention relates to the technical field of space station equipment, in particular to a space station anti-drifting screw assembly.
Background
The space station and other manned aerospace system equipment needs to bear various mechanical working conditions such as launching, on-orbit flight, docking and the like, and the connection of the equipment experiment cabinets needs to be stable and reliable, and a screw connection mode is adopted.
Meanwhile, the equipment needs to stably run on the orbit for a long time, and has disassembly and assembly capability so as to facilitate on-orbit maintenance and replacement of astronauts. Space station equipment is usually installed inside the experiment cabinet, and only the front surface is visual, accessible and operable, and existing equipment usually needs to be disassembled and assembled by means of special extension bar tools to realize rear screw disassembly of the equipment, and visibility and operability are poor.
Disclosure of Invention
The invention mainly aims to provide a space station anti-drift screw assembly, which aims to solve the technical problems of poor assembly and disassembly visibility and operability of the existing space station equipment in an experiment cabinet.
In order to achieve the above purpose, the invention provides a space station anti-drift screw assembly, which comprises a long screw, wherein the front end of the long screw is provided with a threaded hole, and the rear end of the long screw is provided with external threads; wherein:
The front end of the long screw is provided with a first step, the rear end of the long screw is provided with a second step, and the first step and the second step limit the assembly between the front equipment mounting plate and the rear equipment mounting plate;
The front end of the long screw rod extends out of the equipment front mounting plate, and is in fastening connection with the equipment front mounting plate through the anti-loosening assembly and the threaded hole;
The rear end of the long screw rod extends out of the equipment rear mounting plate, and is in fastening connection with the equipment rear mounting plate through an external thread and a thread protection cap, or is in fastening connection with the equipment rear mounting plate and the experimental cabinet through an external thread and an internal thread hole of the experimental cabinet.
Optionally, the front end of long screw rod is equipped with hexagon socket head cap, hexagon socket head cap and allen wrench cooperation realize the installation and the dismantlement of subassembly and experiment cabinet.
Optionally, the afterbody of long screw rod rear end is equipped with the conical head for with the internal thread hole of experiment cabinet is fixed a position when fastening connection experiment cabinet.
Optionally, the outer diameter of the first step is larger than the diameter of the mounting hole of the front mounting plate of the device, and the outer diameter of the second step is larger than the diameter of the mounting hole of the rear mounting plate of the device.
Optionally, the anti-loosening assembly includes a non-backing screw, a first spring washer, and a first flat washer.
Optionally, the first flat washer is provided with a threaded hole matched with the non-falling screw, and a threaded section of the non-falling screw close to the screw head is a thin neck.
Optionally, the thread section of the non-falling screw passes through the first spring washer and then is completely screwed through the threaded hole of the first flat washer, and the narrow neck section and the inner diameter of the threaded hole of the first flat washer form clearance fit.
Optionally, the thread specification of the non-falling screw is matched with the specification of the threaded hole of the long screw.
Optionally, the first flat washer has an outer diameter dimension greater than the via diameter of the front mounting plate of the device.
Optionally, the rear end of long screw rod still is equipped with second spring washer and second flat washer in the subassembly closes the in-process with experimental cabinet or screw thread protection cap soon, and the second step compresses tightly second spring washer and second flat washer, realizes the fastening connection of mounting panel and experimental cabinet or screw thread protection cap behind the equipment.
The invention provides a space station anti-drifting screw assembly, which comprises a long screw, wherein the front end of the long screw is provided with a threaded hole and a first step, the rear end of the long screw is provided with an external thread and a second step, the first step and the second step limit the assembly between a front equipment mounting plate and a rear equipment mounting plate, the front end of the long screw extends out of the front equipment mounting plate and is in fastening connection with the front equipment mounting plate through an anti-loosening assembly and the threaded hole, the rear end of the long screw extends out of the rear equipment mounting plate, and the fastening connection with the rear equipment mounting plate is realized through the external thread and a threaded protective cap, or the fastening connection with the rear equipment mounting plate and an experiment cabinet is realized through the external thread and an internal threaded hole of the experiment cabinet. The invention adopts the double mounting surfaces to form the fixed beam structure at two ends, thereby ensuring the mechanical property born by the equipment in the transmitting stage, adopts the double steps, can be matched with the front mounting plate and the rear mounting plate of the equipment to form the structure limit, ensures that the screw rod component can not deviate from, simultaneously has the loosening-preventing function, and solves the problem of preventing the drift of small parts such as screws, gaskets and the like.
Drawings
FIG. 1 is a schematic diagram of the composition of a space station drift prevention screw assembly in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of a long screw in an embodiment of the present invention;
FIG. 3 is a schematic perspective view of a long screw in an embodiment of the present invention;
FIG. 4 is a schematic view of an anti-loosening assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of a non-backing out screw in an embodiment of the invention;
FIG. 6 is a schematic view of a second flat gasket according to an embodiment of the present invention;
FIG. 7 is a schematic view of the installation of a space station drift prevention screw assembly and apparatus in accordance with an embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating the installation of the space station drift prevention screw assembly with equipment and an experimental cabinet during the transmission of the space station drift prevention screw assembly in an embodiment of the invention;
FIG. 9 is a schematic diagram showing the separation of the space station drift prevention screw assembly from the laboratory cabinet with the apparatus while the space station drift prevention screw assembly is in-orbit in an embodiment of the invention.
Reference numerals illustrate: 1-experiment cabinet, 2-equipment, 21-equipment front mounting plate, 22-equipment rear mounting plate, 3-long screw rod, 31-inner hexagonal cylinder head, 32-threaded hole, 33-first, 34-external thread, 35-conical head, 36-second step, 4-locking subassembly, 41-non-stripping screw, 42-first spring washer, 43-first plain washer, 5-second spring washer, 6-second plain washer, 7-threaded protective cap.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, based on the embodiments of the invention, which would be apparent to one of ordinary skill in the art without inventive effort are within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicators are changed accordingly.
In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary that the technical solutions are based on the fact that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the technical solutions should be considered that the combination does not exist and is not within the scope of protection claimed by the invention.
Currently, in the related art, existing space station apparatuses are poor in visibility and operability of disassembly and assembly inside an experiment cabinet.
To address this problem, various embodiments of a space station anti-drift screw assembly of the present invention are presented. According to the space station anti-drifting screw assembly, the double mounting surfaces are adopted to form the two-end fixed beam structure, so that the mechanical property born by equipment in the transmitting stage is guaranteed, the double steps are adopted to be matched with the front mounting plate and the rear mounting plate of the equipment to form structural limit, the screw assembly is prevented from falling out, meanwhile, the screw assembly has the loosening-preventing function, and the anti-drifting problem of small parts such as screws, gaskets and the like is solved. On the other hand, the screw protecting cap is arranged to protect the sharp external threads, so that possible injury to astronauts is avoided; the operation interface is extended to the front surface of the equipment without a special lengthening tool, so that the visibility, accessibility and operability are high, and the on-orbit maintenance of astronauts is facilitated.
The embodiment provides a space station anti-drift screw assembly, referring to fig. 1-9, specifically comprising the following structures:
a long screw 3, a locking assembly 4, a second spring washer 5, a second flat washer 6 and a thread protection cap 7.
It should be noted that, long screw 3 front end is equipped with hexagon socket head cap 31, cooperatees with the allen wrench, and long screw 3 rear end is equipped with external screw thread 34, matches with the internal thread hole specification of experiment cabinet 1, and long screw 3 screw thread tail end is equipped with conical head 35, can realize the quick location of external screw thread 34 and the internal thread hole of experiment cabinet 1, utilizes allen wrench to realize the installation and the dismantlement of subassembly and experiment cabinet 1.
In the preferred embodiment, a second step 36 is arranged at the external thread 34 at the rear end of the long screw 3, the outer diameter of the second step 36 is larger than the diameter of the installation hole of the equipment rear installation plate 22, and in the screwing process of the assembly and the experiment cabinet 1, the second step 36 compresses the second spring washer 5 and the second flat washer 6, so that the fastening connection between the equipment rear installation plate 22 and the experiment cabinet 1 is realized.
In a preferred embodiment, the tail end of the hexagonal cylindrical head 31 in the long screw 3 is provided with a first step 33, and the outer diameter of the first step 33 is larger than the diameter of the mounting hole of the mounting plate 21 in front of the device. After the assembly is separated from the experiment cabinet 1 by threads, the first step 33 and the second step 36 limit the assembly between the equipment front mounting plate 21 and the equipment rear mounting plate 2, so that the assembly is prevented from being separated from the equipment, and the anti-falling function is realized.
In a preferred embodiment, the first step 33 and the second step 36 of the long screw 3 may be optimally designed according to the weight requirement, the mechanical environment condition to be borne, and the like, and may be connected as one boss or designed as a plurality of bosses. The hexagonal cylindrical head 31 of the long screw 3 can be designed into a straight groove, a cross groove or other shapes according to the weight of the installed equipment, the mechanical environment conditions to be born and the like.
Referring to fig. 6, the locking assembly 4 includes: the screw 41, the first spring washer 42, and the first flat washer 43 are not removed.
The first flat washer 43 is provided with a threaded hole, the threaded specification of the first flat washer is matched with that of the non-falling screw 41, the threaded section of the non-falling screw 41 near the screw head is processed into a thin neck, the threaded section of the non-falling screw 41 passes through the first spring washer 42 and then is completely screwed through the threaded hole of the flat washer 43, and the thin neck section and the inner diameter of the threaded hole of the flat washer 43 form clearance fit, so that the three parts can be formed into a combined body, and the non-falling function can be realized without separation under the conventional operation.
The screw thread specification of the non-falling screw 41 of the anti-loosening assembly 4 is matched with the screw hole 32 specification of the long screw 3, and the outer diameter size of the first flat washer 43 is larger than the diameter of the through hole of the equipment front mounting plate 21. The first flat washer 43 may be designed in a round, square or other shape as desired. The non-falling screw 41 may be designed as a hexagon socket, a straight slot, a cross slot or other shapes.
When equipment is launched, screw 41 and screw hole 32 of long screw rod 3 are screwed up to utilize the allen key to not deviate from, realize long screw rod 3 and the preceding mounting panel 21 fastening connection of equipment, for long screw rod 3 provides the front end fixed point, forms both ends fixed beam structure, avoids because of cantilever beam structure causes long screw rod 3 not hard up and the swing in vibration in-process, improves the vibration resistance of equipment.
The combination mode of the anti-loose assembly 4: the non-backing screw 41 is threaded through the first spring washer 42 and into the first flat washer 43.
And the installation mode of the equipment is as follows: sequentially loading a second spring washer 5 and a second flat washer 6 from the conical head 35 of the long screw 3; and then fit together into the corresponding mounting holes of the rear mounting plate 22 of the device; the screw thread protecting cap 7 is then screwed with the external screw thread 34 of the long screw 3 until contacting the equipment rear mounting plate 22; then the equipment front mounting plate 21 is installed, so that the inner hexagonal cylindrical head 31 of the long screw 3 enters the corresponding mounting hole of the equipment front mounting plate 21; the anti-loosening assembly 4 is then threaded into the threaded bore 32 of the long threaded rod 3 using an allen wrench that mates with the non-backing screw 41 until the first flat washer 43 contacts the front equipment mounting plate 21.
And the installation mode of the experiment cabinet: firstly, the anti-loose assembly 4 is separated from the long screw 3 by using an inner hexagonal wrench matched with the non-falling screw 41; then separating the thread protecting cap 7 from the long screw 3; then the long screw 3 is put into the experiment cabinet 1 by using an internal hexagonal wrench matched with the internal hexagonal cylindrical head 31; the anti-loosening assembly 4 is then installed into the long screw 3 using an allen wrench that mates with the non-backing screw 41.
The first disassembly mode in the track: firstly, separating the anti-loose assembly 4 from the long screw 3 by using an internal hexagonal wrench matched with the non-falling screw 41; the long screw 3 was then separated from the laboratory cabinet 1 using an allen wrench that mates with the allen knob 31.
The on-orbit installation mode comprises the following steps: the long screw 3 was loaded into the laboratory cabinet 1 using an allen wrench that mates with the allen knob 31. Because locking subassembly 4 mainly used launches the vibration resistance of stage lifting device, mechanical environment after the track is better, and after the track was accomplished first dismantlement, locking subassembly 4 can retrieve, no longer installs.
The foregoing description is only of the preferred embodiments of the invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalent structure or equivalent flow scheme disclosed in the specification and drawings, or any other related art, directly or indirectly, as desired.
Claims (7)
1. The space station anti-drifting screw assembly is characterized by comprising a long screw, wherein the front end of the long screw is provided with a threaded hole, and the rear end of the long screw is provided with external threads; wherein:
The front end of the long screw is provided with a first step, the rear end of the long screw is provided with a second step, and the first step and the second step limit the assembly between the front equipment mounting plate and the rear equipment mounting plate;
The front end of the long screw rod extends out of the equipment front mounting plate, and is in fastening connection with the equipment front mounting plate through the anti-loosening assembly and the threaded hole;
The rear end of the long screw rod extends out of the equipment rear mounting plate, the equipment rear mounting plate is compressed by the second step, and the fastening connection with the equipment rear mounting plate is realized by the second step, the external thread and the thread protecting cap, or the fastening connection with the equipment rear mounting plate and the experimental cabinet is realized by the second step, the external thread and the internal thread of the experimental cabinet;
The anti-loosening assembly comprises a non-falling screw, a first spring washer and a first flat washer;
The first flat washer is provided with a threaded hole matched with the non-falling screw, and a threaded section of the non-falling screw close to the screw head is a thin neck;
The thread section of the non-falling screw passes through the first spring washer and then is completely screwed through the threaded hole of the first flat washer, and the thin neck section is in clearance fit with the inner diameter of the threaded hole of the first flat washer.
2. The space station anti-drift screw assembly according to claim 1, wherein the front end of the long screw is provided with an inner hexagonal cylindrical head, and the inner hexagonal cylindrical head is matched with an inner hexagonal wrench to realize the assembly and the disassembly of the experiment cabinet.
3. The space station drift prevention screw assembly of claim 1, wherein the tail of the rear end of the long screw is provided with a conical head for positioning with an internally threaded hole of the experiment cabinet when the experiment cabinet is fastened and connected.
4. The space station anti-drift screw assembly of claim 1, wherein the first step has an outside diameter greater than a mounting hole diameter of the front mounting plate of the apparatus and the second step has an outside diameter greater than a mounting hole diameter of the rear mounting plate of the apparatus.
5. The space station anti-drift screw assembly of claim 1, wherein the thread gauge of the non-backing screw matches the gauge of the threaded bore of the long screw.
6. The space station anti-drift screw assembly of claim 1, wherein the first flat washer has an outer diameter dimension greater than a via diameter of the front mounting plate of the apparatus.
7. The space station anti-drift screw assembly according to claim 1, wherein a second spring washer and a second flat washer are further arranged at the rear end of the long screw, and the second step compresses the second spring washer and the second flat washer in the screwing process of the assembly and the experiment cabinet or the threaded protective cap, so that the fastening connection of the equipment rear mounting plate and the experiment cabinet or the threaded protective cap is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211382594.8A CN115899048B (en) | 2022-11-04 | 2022-11-04 | Space station anti-drifting screw assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211382594.8A CN115899048B (en) | 2022-11-04 | 2022-11-04 | Space station anti-drifting screw assembly |
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| Publication Number | Publication Date |
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| CN115899048A CN115899048A (en) | 2023-04-04 |
| CN115899048B true CN115899048B (en) | 2024-05-31 |
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| CN202211382594.8A Active CN115899048B (en) | 2022-11-04 | 2022-11-04 | Space station anti-drifting screw assembly |
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