CN114674182B - Separation shield screw protection structure, preparation device and protection method thereof - Google Patents
Separation shield screw protection structure, preparation device and protection method thereof Download PDFInfo
- Publication number
- CN114674182B CN114674182B CN202210288826.7A CN202210288826A CN114674182B CN 114674182 B CN114674182 B CN 114674182B CN 202210288826 A CN202210288826 A CN 202210288826A CN 114674182 B CN114674182 B CN 114674182B
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- China
- Prior art keywords
- die
- female die
- screw
- female
- separation
- Prior art date
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- 238000000926 separation method Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title abstract description 13
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 42
- 239000004945 silicone rubber Substances 0.000 claims abstract description 29
- 238000003825 pressing Methods 0.000 claims description 26
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010073 coating (rubber) Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241001301450 Crocidium multicaule Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
- F42B15/36—Means for interconnecting rocket-motor and body section; Multi-stage connectors; Disconnecting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/26—Moulds or cores
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention provides a separation shroud screw guard structure for connecting a stage segment of a launch vehicle, the guard structure comprising a sleeve made of silicone rubber for connection with a nut of a separation shroud screw connected to the stage segment of the launch vehicle. The invention also provides a preparation device and a protection method of the separation shield screw protection structure. The invention can effectively protect the separation shroud screw connected to the stage of the carrier rocket stage.
Description
Technical Field
The invention relates to a protective structure of a separation shroud screw, a preparation device and a protective method thereof, in particular to a protective structure of a separation shroud screw for connecting a carrier rocket stage section, a preparation device and a protective method thereof.
Background
The separation shroud screw of the second-stage interstage section and the second-stage interstage section of the existing Goldstar first rocket can be exposed on the outer surface of the shell after the installation is completed. The exposed state of the screw can cause the thermal air generated by the carrier rocket in the flying process to ablate the screw, and the screw is damaged.
The prior art has generally addressed this problem by applying silicone rubber to the split passport screw to provide thermal protection. The existing protection method is to manually smear silicone rubber on a target range for solidification, specifically, when the separation shield screw is completely installed, the separation shield screw is exposed on the outer surface of the shell, at the moment, the silicone rubber is extruded on the screw by manually holding a tool filled with the silicone rubber, so that the screw is covered until the whole screw cap is completely covered by the silicone rubber, and then the part, which is contacted with the rocket shell, of the screw is smeared with the silicone rubber by the tool, so that the screw is completely covered by the silicone rubber as far as possible. After one screw is finished, the covering and smearing of other screws are sequentially finished according to the method.
However, the existing manual protection method has the following defects:
(1) Because of manual operation, the method has low efficiency, and the silicone rubber has poor coverage for separating the shield screw, and the coating effect depends on the proficiency of operators, so that the quality is difficult to ensure and the appearance is not attractive.
(2) Because the carrier rocket shell is a cylinder, the outer surface of the shell is also a curved surface with radian (seen along the horizontal direction of the cylindrical surface), the screw after installation is arranged on the curved surface, so that the silicon rubber coated on the screw is extremely easy to slowly flow along the outer surface of the shell, and the exposed part is reappeared. This is a relatively difficult problem for the operator: the screw is not only coated with bending but also the silicone rubber is not displaced. The operator can only smear as fast as possible on the premise of accurate coating, and the requirements on the technical skill level are very high.
(3) Because of the need for the operator to quickly apply the silicone rubber, it is actually difficult to do so because there are hundreds of screws on an arrow that need to do this, making it impossible to quickly complete the application of an arrow.
Disclosure of Invention
The invention provides a separation shield screw protection structure, a preparation device and a protection method thereof, which are used for at least solving one of the technical problems.
The invention adopts the technical scheme that:
embodiments of the present invention provide a separation shroud screw guard structure for connecting a carrier rocket stage, the guard structure comprising a nail sleeve made of silicone rubber for connection with a nut of a separation shroud screw connected to a carrier rocket stage.
Optionally, the nail sleeve is connected with the shell of the carrier rocket stage by silicone rubber.
The embodiment of the invention also provides a preparation device for the separation shield screw protection structure, which is used for preparing the protection structure, and comprises the following steps: the die comprises a pressing plate, a male die and a female die, wherein a placing groove for placing the female die is formed in the pressing plate, a plurality of cylindrical die grooves and a plurality of overflow ports are formed in the female die, and each overflow port is communicated with the corresponding cylindrical die groove; the male die is provided with a plurality of protruding parts matched with the cylindrical die grooves.
Optionally, the female die comprises a first female die and a second female die which are symmetrically arranged, a plurality of concave parts and a plurality of overflow ports are formed on each female die, and the concave parts of the first female die and the concave parts of the second female die are mutually matched to form the cylindrical die cavity.
Optionally, a plurality of openings are formed on two sides of the pressing plate; each opening is used for exposing a corresponding overflow port when the female die is placed in the placing groove.
Optionally, a plurality of through holes are formed at the bottom of the pressing plate.
The embodiment of the invention also provides a preparation device for the separation shield screw protection structure, which is used for preparing the protection structure, and comprises the following steps: the pressing plate part comprises a bottom plate and m vertical plate groups arranged on the bottom plate, the male die part comprises a top plate and m pressing groups arranged on the top plate, the female die part comprises m female dies, the ith vertical plate group comprises two vertical plates arranged in parallel, and a placing groove for placing the ith female die is formed between the two vertical plates; n cylindrical die grooves and n overflow ports are formed on the ith female die, and each overflow port is communicated with the corresponding die groove; the ith pressing group comprises protruding parts matched with the n cylindrical die grooves, and the value of i is 1 to m.
The embodiment of the invention also provides a protection method for the separation shroud screw, which is used for connecting the stage sections of the carrier rocket, and comprises the following steps:
s10, using a die to mould and press a set number of nail sleeves;
s20, pressing the nail sleeve on a nut of a separation shield screw connected to a carrier rocket stage section;
and S30, coating silicone rubber between the nail sleeve and the shell of the carrier rocket stage section, and curing the coated silicone rubber.
The embodiment of the invention has at least the following technical effects: according to the invention, the separation shield screw for connecting the interstage section of the carrier rocket is connected by using the nail sleeve, so that the coating quality of the silicon rubber on the separation shield screw can be improved, and compared with the existing mode of directly coating the silicon rubber on the screw, the separation shield screw is connected by using the nail sleeve, and the problem that the silicon rubber coated on the screw is easy to slowly flow along the outer surface of the shell, so that the exposed part appears again in the coated place can be solved. Moreover, as the nail sleeve is matched with the nut, the nail sleeve is only required to be sleeved on the nut, and compared with the existing coating mode of 'bending and coating the screw and not enabling the silicon rubber to shift', the operation difficulty can be reduced. In addition, the protective structure preparation device provided can be used for mass production of the nail sleeve, so that the production efficiency of the nail sleeve is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic view of a split shroud screw guard structure according to an embodiment of the present invention;
fig. 2a and fig. 2b are schematic views illustrating a usage state of a protection structure according to an embodiment of the invention;
FIG. 3 is an exploded view of a manufacturing apparatus according to an embodiment of the present invention;
fig. 4 is a side view of a male die of an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In embodiments of the present invention, separation shroud screws are used to connect carrier rocket stage segments, such as for connecting a secondary stage segment and a secondary stage segment of a rocket.
Fig. 1 is a schematic view of a screw protecting structure for a separation shroud according to an embodiment of the present invention. Fig. 2a and fig. 2b are schematic views illustrating a usage state of the protection structure according to an embodiment of the invention. Fig. 3 is an exploded view of a manufacturing apparatus according to an embodiment of the present invention. Fig. 4 is a side view of a male die of an embodiment of the present invention.
As shown in fig. 1, 2a and 2b, the separation shroud screw guard structure provided by the embodiment of the present invention may include a nail sleeve 1 made of silicon rubber for nut connection with the separation shroud screw 2 connected to the interstage section of the launch vehicle. The size and specification of the nail sleeve 1 are matched with those of the separation shield screw 2.
Further, the nail sleeve is connected with the shell of the carrier rocket stage section through silicone rubber, so that the connection force between the nail sleeve and the shell is enhanced.
Another embodiment of the present invention provides a manufacturing apparatus for a separation shroud screw protecting structure, for manufacturing the aforementioned protecting structure, i.e., a nail sleeve 1, as shown in fig. 3 and 4, which may include: the die comprises a pressing plate 3, a male die 4 and a female die 5, wherein a placing groove 6 for placing the female die is formed in the pressing plate 3, a plurality of cylindrical die grooves and a plurality of overflow ports 7 are formed in the female die 5, and each overflow port 7 is communicated with the corresponding cylindrical die groove; the male die 4 is formed with a plurality of projections 8 which fit into the plurality of cylindrical cavities.
In an embodiment of the invention, a cylindrical die cavity is used to contain the silicone rubber liquid. The protruding portion 8 is cylindrical. The protruding part 8 and the cylindrical die groove are connected in a fit mode through interference fit, and the distance between the protruding part 8 and the bottom of the cylindrical die groove is determined based on the thickness of the nut, namely, the thickness of the nut is equal to that of the nut. Overflow ports 7 are provided on both sides of the female mold for allowing the silicone rubber liquid to flow out when the silicone rubber liquid is poured into the cylindrical cavity. The size and shape of the overflow port 7 can be set according to actual needs.
In embodiments of the invention, the female and male dies may be made of polytetrafluoroethylene to facilitate demolding. The platen may be made of aluminum material.
As shown in fig. 3, the female mold 5 may include a first female mold 501 and a second female mold 502 symmetrically disposed to facilitate demolding. Each female die 501 is formed with a plurality of concave portions and a plurality of overflow ports, and the concave portions of the first female die 501 and the second female die 502 cooperate with each other to form the cylindrical die cavity.
In the embodiment of the invention, the number of the cylindrical die cavities can be set according to actual needs. In one exemplary embodiment, there may be 10.
In the embodiment of the present invention, the pressing plate 3 is used to provide a supporting force for the female mold 5 to prevent the slot mold from moving when the male mold 4 presses the silicone rubber liquid in the female mold 5.
Further, as shown in fig. 3, a plurality of openings 9 are formed on both sides of the pressing plate 3; each opening 9 is adapted to expose a corresponding overflow when the female mould is placed in the placement groove 6. In one exemplary embodiment, the opening 9 may be U-shaped.
Further, a plurality of through holes (not shown) are formed at the bottom of the pressing plate, and the pressing plate is penetrated from the through holes at the bottom of the pressing plate by using a push rod or the like to push out the female die after the nut is formed. In one exemplary embodiment, the number of through holes may be 4.
The working principle of the preparation device of the separation shroud screw protection structure provided by the embodiment of the invention can comprise:
s1, placing the female die in a placing groove of a pressing plate.
S2, pouring a proper amount of silicone rubber liquid into each cylindrical die cavity.
The height of the silicone rubber liquid in the die cavity is lower than the plane of the overflow.
S3, aligning the protruding part of the male die with the die cavity and pressing the male die downwards so that the protruding part presses the silicone rubber liquid in the die cavity downwards until the protruding part is pressed into place.
The male die may be pressed manually.
S4, waiting for the silicone rubber liquid to naturally solidify and demolding.
After the silicone rubber liquid is solidified, the male die can be pulled out first, then the female die is ejected out of the bottom of the pressing plate, and then the first female die and the second female die are separated.
The preparation device provided by the embodiment can prepare a plurality of nut caps at one time. For example, tens of nail sleeves can be molded and cured at a time, 120 nail sleeves are needed for a flying test product, and the nail sleeves after being molded and cured for several times can meet the requirements of a carrier rocket. In practical application, the required number of nut caps can be produced in advance, after the installation of the separation shield screw on the rocket is completed, the nut is directly installed on the nut along the outer surface of the shell, and then the silicon rubber is coated, so that the silicon rubber coating quality and the silicon rubber coating speed can be improved.
Another embodiment of the present invention provides a manufacturing apparatus for a separation shroud screw guard structure, including: the pressing plate part comprises a bottom plate and m vertical plate groups arranged on the bottom plate side by side, the male die part comprises a top plate and m pressing groups arranged on the top plate side by side, the female die part comprises m female dies, the ith vertical plate group comprises two vertical plates arranged in parallel, and a placing groove for placing the ith female die is formed between the two vertical plates; n cylindrical die grooves and n overflow ports are formed on the ith female die, and each overflow port is communicated with the corresponding die groove; the ith pressing group comprises protruding parts matched with the n cylindrical die grooves, and the value of i is 1 to m.
In an exemplary embodiment of the invention, m.gtoreq.2, preferably can be 6 or 8. Preferably, n=10.
In this embodiment, the pressing plate, the female die and the male die are the same as those in the previous embodiment, and specific descriptions thereof are omitted to avoid redundancy.
Further, in an embodiment of the present invention, the male mould section is further provided with operating handles, in particular at both ends of the male mould section, by means of which the male mould section is conveniently handled.
Compared with the previous embodiment, the preparation device provided by the embodiment can prepare more nut at one time, and can improve the production efficiency of the nut.
In summary, the separation shroud screw for connecting the stage of the carrier rocket is connected by using the nail sleeve, so that the coating quality of the silicon rubber on the separation shroud screw can be improved, and compared with the existing mode of directly coating the silicon rubber on the screw, the separation shroud screw is connected by using the nail sleeve, and the problem that the silicon rubber coated on the screw is extremely easy to slowly flow along the outer surface of the shell, so that the exposed part appears again in the coated place can be solved. Moreover, as the nail sleeve is matched with the nut, the nail sleeve is only required to be sleeved on the nut, and compared with the existing coating mode of 'bending and coating the screw and not enabling the silicon rubber to shift', the operation difficulty can be reduced. In addition, the protective structure preparation device provided can be used for mass production of the nail sleeve, so that the production efficiency of the nail sleeve is improved.
The embodiment of the invention also provides a protection method for the separation shroud screw, which is used for connecting the stage sections of the carrier rocket, and comprises the following steps:
s10, using a die to press and mold a set number of nail sleeves.
The mold used may be the apparatus for preparing the protective structure of the foregoing embodiment.
S20, pressing the nail sleeve on a nut of a separation shroud screw connected to the stage section of the carrier rocket.
And S30, coating silicone rubber between the nail sleeve and the shell of the carrier rocket stage section, and curing, such as naturally curing, the coated silicone rubber.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. Those skilled in the art will also appreciate that many modifications may be made to the embodiments without departing from the scope and spirit of the invention. The scope of the present disclosure is defined by the appended claims.
Claims (2)
1. A manufacturing apparatus for a separation shroud screw guard structure for use in connection with a launch vehicle interstage section, the guard structure comprising a sleeve made of silicone rubber for connection with a nut of a separation shroud screw connected to a launch vehicle interstage section, the manufacturing apparatus comprising: the pressing plate part comprises a bottom plate and m vertical plate groups arranged on the bottom plate, the male die part comprises a top plate and m pressing groups arranged on the top plate, the female die part comprises m female dies, the ith vertical plate group comprises two vertical plates arranged in parallel, and a placing groove for placing the ith female die is formed between the two vertical plates; n cylindrical die grooves and n overflow ports are formed on the ith female die, and each overflow port is communicated with the corresponding die groove; the ith pressing group comprises protruding parts which are matched with the n cylindrical die grooves, and the value of i is 1 to m;
the female die comprises a first female die and a second female die which are symmetrically arranged, a plurality of concave parts and a plurality of overflow ports are formed on each female die, and the concave parts of the first female die and the concave parts of the second female die are mutually matched to form the cylindrical die cavity;
a plurality of opening parts are formed on two sides of the vertical plate; each opening is used for exposing a corresponding overflow port when the female die is placed in the placing groove;
the bottom plate is also provided with a plurality of through holes.
2. The apparatus of claim 1, wherein the sheath is connected to the casing of the carrier rocket stage section by silicone rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210288826.7A CN114674182B (en) | 2022-03-22 | 2022-03-22 | Separation shield screw protection structure, preparation device and protection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210288826.7A CN114674182B (en) | 2022-03-22 | 2022-03-22 | Separation shield screw protection structure, preparation device and protection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114674182A CN114674182A (en) | 2022-06-28 |
| CN114674182B true CN114674182B (en) | 2023-11-14 |
Family
ID=82075166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210288826.7A Active CN114674182B (en) | 2022-03-22 | 2022-03-22 | Separation shield screw protection structure, preparation device and protection method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN114674182B (en) |
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| CN214872373U (en) * | 2021-05-13 | 2021-11-26 | 浙江钧圣能源科技有限公司 | Cover plate injection mold |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114674182A (en) | 2022-06-28 |
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