CN211137822U - Reusable mould for producing large-size lining-free composite material storage box - Google Patents
Reusable mould for producing large-size lining-free composite material storage box Download PDFInfo
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- CN211137822U CN211137822U CN201921959854.7U CN201921959854U CN211137822U CN 211137822 U CN211137822 U CN 211137822U CN 201921959854 U CN201921959854 U CN 201921959854U CN 211137822 U CN211137822 U CN 211137822U
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Abstract
The utility model discloses a reusable mould for producing a large-size lining-free composite material storage box, which comprises a detachable/assembled barrel body consisting of a plurality of barrel body assembling petals, two detachable/assembled seal heads arranged at two ends of the detachable/assembled barrel body and consisting of a plurality of seal head assembling petals and a plurality of support frames arranged inside the seal heads and the barrel body; the top ends of a plurality of seal head assembling valve sections of the detachable/assembled seal head are surrounded to form a polar hole. The utility model discloses a structure is ingenious, forms the modularization frock, and the mould that can conveniently dismantle is prepared through reasonable equipment, has alleviateed the weight of mould effectively, has improved the size precision behind the high temperature curing of combined material goods greatly, can satisfy the manufacturing of jumbo size no inside lining combined material storage tank, and the transportation is also convenient, does benefit to reuse, and in addition, this mould and design method still can popularize to the manufacturing of other large-scale no inside lining container components, and the practicality is strong, is worth promoting.
Description
Technical Field
The utility model belongs to the combined material shaping field especially relates to a repeatedly usable mould that is used for jumbo size not to have inside lining combined material storage tank production usefulness.
Background
With the development of the aerospace industry, the requirement of space delivery tasks is continuously expanded, the high-efficiency aerospace vehicle is an urgent target in the aerospace field, and the mass and the volume of a storage tank for storing the ultralow-temperature liquid propellant in the aerospace vehicle occupy a great proportion in the aerospace vehicle, so that the storage tank is one of key structures of a reusable aircraft. At present, a low-temperature liquid propellant storage tank is mostly prepared from metal materials, but the weight of the metal storage tank is heavy, so that the launching efficiency of a space carrier is reduced, and the launching cost is increased. The fiber reinforced resin matrix composite material has excellent light weight, high strength and thermal property, and is one of the preferred materials for preparing the ultralow temperature liquid propellant storage tank. Since the middle of the 90 s of the 20 th century, the national aeronautics and astronautics administration (NASA) has begun to develop light-weight, high-strength and ultra-low temperature composite material storage tanks, and has been a key technology for developing reusable launch vehicles, carbon fiber reinforced resin matrix composite materials have been successfully applied to liquid oxygen fuel storage tanks of rockets, airplanes and the like. However, the development of the composite material storage tank is still accompanied by a plurality of problems to be solved, wherein the reasonable design of the mold is one of the difficult problems.
The existing pressure vessel taking fiber reinforced resin matrix composite as a winding layer has two molding forms, namely a liner-containing pressure vessel and a liner-free pressure vessel, aiming at the liner-containing pressure vessel, fibers are wound on the liner according to a certain rule, and the liner also plays a role of a mold; aiming at the products without lining composite materials, the adopted moulds mainly comprise a metal core mould, a low-melting-point alloy core mould, a flushing type core mould, a combined assembly type core mould, an inflatable type core mould and the like. The metal core mold has high precision and good stability, but has heavy weight, high price and difficult demolding; the low-melting-point alloy can be formed into a complex shape, but is difficult to prepare and has high requirements on demolding environment; the washing type core mold is convenient to demold, but has low precision and poor stability; the combined assembly type core mold has light weight and good precision, but the demolding period is longer; the inflatable core mold has light weight and convenient demolding, but has certain difficulty in preparation and low precision. Because the size of the low-temperature storage tank made of the carrier rocket composite material is larger, the accuracy of the external size of the storage tank has certain requirements, and the cleanliness of the inner wall of the storage tank has high requirements, the requirement on a mold is higher, and the mold form which has light weight, high molding accuracy and no residue after demolding is required.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a repeatedly usable mould that is used for jumbo size not to have inside lining combined material storage tank production usefulness.
The utility model discloses specifically realize through following technical scheme:
the reusable mould for producing the large-size lining-free composite material storage box comprises a detachable/assembled barrel body consisting of a plurality of barrel body assembling petals, two detachable/assembled seal heads arranged at two ends of the detachable/assembled barrel body and consisting of a plurality of seal head assembling petals and a plurality of support frames arranged inside the seal heads and the barrel body; the top ends of a plurality of seal head assembling petals of the detachable/assembled seal head are surrounded to form a polar hole, and the size of the polar hole is set to at least take out the seal head assembling petals and the barrel assembling petals from the polar hole.
Preferably, the side edges and the bottom edges of the end socket assembling valve and the barrel body assembling valve are respectively provided with a convex connecting piece, the two adjacent assembling valves on the end socket and the barrel body are respectively fixed by connecting the convex connecting pieces on the side edges of the two assembling valves, and the bottom edge of the barrel body assembling valve forming the barrel body is connected and fixed with the convex connecting piece on the bottom edge of the end socket assembling valve forming the end socket to form an integral die through connection.
Preferably, one side of each assembling valve on the end socket and the cylinder body, which is provided with at least two adjacent assembling valves, is provided with an inclined surface, and the two inclined surfaces are arranged adjacently, so that the outer surfaces of the two adjacent assembling valves are in point contact to facilitate disassembly.
Further, two adjacent split petals, the outer surfaces of which are in point contact, are fixed at the inner surfaces by connecting the convex connecting pieces on the side edges of the two split petals through long bolts.
Preferably, the two adjacent split petals are fixed by connecting the convex connecting pieces on the side edges of the two split petals through bolts.
Preferably, one end of each support frame is connected to one shaft sleeve, the other end of each support frame is inserted into the assembly valve to be fixed, a central rotating shaft penetrates through the shaft sleeves and the two seal heads and is fixed through cover plates arranged on the seal heads.
Preferably, all be equipped with a plurality of rings of strengthening ribs along the axial in the lamella is assembled to the head and the stack shell, be equipped with the hole on the strengthening rib, the one end of support frame is pegged graft on assembling the lamella through inserting the hole on the strengthening rib.
Furthermore, 1-5 circles of reinforcing ribs are arranged in the end socket assembling valve and the barrel body assembling valve along the axial direction.
The utility model has the advantages that:
the utility model discloses a structure is ingenious, forms the modularization frock, and the mould that can conveniently dismantle is prepared through reasonable equipment, has alleviateed the weight of mould effectively, has improved the size precision behind the high temperature curing of combined material goods greatly, can satisfy the manufacturing of jumbo size no inside lining combined material storage tank, and the transportation is also convenient, does benefit to reuse, and in addition, this mould and design method still can popularize to the manufacturing of other large-scale no inside lining container components, and the practicality is strong, is worth promoting.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the head;
FIG. 3 is a schematic structural view of a closure head assembly flap;
FIG. 4 is a top view of the interior of the head;
FIG. 5 is a top view of the inner support of the seal head;
FIG. 6 is a schematic view of the barrel structure;
FIG. 7 is a schematic structural view of a barrel assembly flap;
FIG. 8 is a top view of the inner support of the barrel;
fig. 9 is a schematic view of a connecting structure of the cylinder body and two end sockets.
Detailed Description
As shown in fig. 1-9, the reusable mold for producing a large-sized lining-free composite material storage tank comprises a detachable/assembled barrel 10 composed of a plurality of barrel assembly petals 1, two detachable/assembled end sockets 20 composed of a plurality of end socket assembly petals 2 and arranged at two ends of the detachable/assembled barrel 10, and a plurality of support frames 3 arranged inside the end sockets 20 and the barrel 10; the top ends of a plurality of seal head assembling petals 2 forming the detachable/assembled seal head 10 are surrounded to form a polar hole 4, and the size of the polar hole 4 is set to be at least capable of taking out the seal head assembling petals 2 and the barrel assembling petals 1 from the polar hole 4.
The side edges and the bottom edges of the end socket assembling petals 2 and the barrel assembling petals 1 are provided with the convex connecting pieces 5, the two adjacent assembling petals on the end socket 20 and the barrel 10 are connected and fixed through the convex connecting pieces 5 on the side edges of the two assembling petals, and the bottom edge of the barrel assembling petals 1 forming the barrel 10 is connected and fixed with the convex connecting pieces 5 on the bottom edge of the end socket assembling petals 2 forming the end socket 20 between the end socket 20 and the barrel 10 to form an integral die through connection.
The end socket 20 and the barrel body 10 are respectively provided with at least two adjacent assembling petals, one side of each assembling petal is provided with an inclined surface 6, and the two inclined surfaces are arranged adjacently, so that the outer surfaces of the two adjacent assembling petals are in point contact to facilitate disassembly.
Two adjacent split petals, the outer surfaces of which are in point contact, are fixed at the inner surfaces by connecting the convex connecting pieces 5 on the side edges of the two split petals through long bolts 7.
And the adjacent two assembling petals are fixed by connecting the convex connecting pieces 5 on the side edges of the two assembling petals through bolts.
All support frames 3 one end is connected at a axle sleeve, and the other end is pegged graft and is being assembled the lamella and go on fixedly, wear to be equipped with a central pivot 8 in the middle of the axle sleeve, central pivot 8 runs through stack shell 10 and two head 20 to it is fixed through the apron that sets up on head 20.
The valve 2 is assembled to the head and barrel assembly 1 is interior all still to be equipped with a plurality of rings of strengthening rib 9 along the axial, be equipped with the hole on the strengthening rib 9, the one end of support frame 3 is pegged graft through inserting the hole on the strengthening rib 9 and is assembled on the valve.
And 1-5 circles of reinforcing ribs 9 are arranged in the end socket assembling valve 2 and the barrel body assembling valve 1 along the axial direction.
The specific embodiment is as follows:
preparing a tool:
aiming at a lining-free composite material storage tank with a cylinder body length of 8m, a diameter of 5m, a head of a hemisphere and a pole hole diameter of 1m, the method comprises the following steps:
the end sockets at two ends and the barrel body section are uniformly divided into 16 segments, wherein 14 segments have the same specification, the arc length is about 0.98m, the rest two segments are in a point contact form, the arc length is about 0.99m, and the gap at the point contact is 10 cm;
the thickness of the convex connecting piece at the edge of the splicing flap is 3cm, the depth of the convex connecting piece is 5cm, and the diameter of the connecting hole is 2 cm;
the reinforcing ribs in the end sockets and the splicing petals are 7cm wide and 7cm thick, square holes 3cm long and 3cm deep are formed in the middle of the end sockets and the splicing petals and used for supporting the bracket, two circles of reinforcing ribs are arranged in each end socket, and three circles of reinforcing ribs are welded on the barrel body section and are respectively positioned at the middle point of the barrel body and the position 2m away from the middle point;
the diameter of the end socket polar hole cover plate is 1.05m, the thickness is 3cm, 32 connecting holes with the diameter of 2cm are distributed at the position with the diameter of 1.025m, a protruding connecting piece fixed with a shaft is arranged at the position of the shaft hole on the cover plate, the thickness is 4cm, the height is 7cm, and four through holes with the diameter of 3cm are distributed;
the diameters of the shaft hole on the cover plate, the shaft and the shaft sleeve in the die are 0.5m +/-0.5 mm;
the shaft is of a hollow structure, the wall thickness is 10cm, four screw holes with the diameter of 3cm are uniformly distributed at the positions 4m away from the middle point of two ends, and the depth is 8 cm;
the length of the shaft sleeve is 15cm, the wall thickness is 5cm, 16 bracket connecting pieces are uniformly distributed on the shaft sleeve, the length is 15m, the thickness is 2cm, the width is 5cm, and a through hole with the diameter of 2cm is arranged in the middle of each connecting piece;
the side length of the section of each bracket is 4cm, a through hole with the diameter of 2cm is arranged at a position 2cm away from one end, the number of each secondary bracket is 16, and the length of the barrel body bracket is 2.25 m;
the length of the seal head support is 2.2m, and the length of the seal head support is 1.1 m;
the die connection adopts M20 × 100 model bolts, the point contact split connection bolts have the model of M20 × 200, the support frame connection adopts M20 × 70 model bolts, the cover plate and the seal head connection adopt M20 × 70 model bolts, and the cover plate and the shaft connection adopt M30 × 120 model bolts;
the modularized tool is made of 304 steel which is high-temperature resistant and stable in size.
Assembling a mold:
the end sockets and the inner surface of the cylinder body are connected with the side edges of the assembled petals through M20 × 100 model bolts, wherein the two assembled petals in point contact are spliced together through M20 × 200 model bolts;
the assembled end socket and the cylinder body are connected through a bolt of M20 × 100 model 100;
a shaft passes through a front seal head polar hole, a shaft sleeve of 7 seal heads and a cylinder body supporting frame and a rear seal head polar hole in sequence through a die;
a worker enters from the end socket polar hole, one end of the support is inserted into the square hole of the assembling petal reinforcing rib, and the other end of the support is connected with the shaft sleeve through a bolt of M14 × 70 type;
a worker leaves the die from the polar hole, sleeves the polar hole cover plate outside the shaft and connects the cover plate with the seal head by using a bolt of M12 × 70 model;
adjusting the position of the shaft to enable the bolt hole on the shaft to correspond to the through hole on the convex connecting piece of the cover plate, and fixing the shaft and the cover plate by using a bolt of M30 × 80 model number;
and (4) putting the shaft bracket on a composite material forming machine, coating a release agent on the outer surface of the mould, and preparing to lay a composite material layer.
Disassembling the die:
firstly, removing bolts for fixing a seal head polar hole cover plate and a seal head, removing bolts for fixing the seal head polar hole cover plate and a shaft, and removing the shaft and a seal head polar hole cover;
workers enter the die from the end socket polar hole and remove the bolts in the cylinder body and the end socket;
removing the inner supports one by one, and taking out the inner supports and the shaft sleeve from the pole hole;
removing the assembling valve with the outer surfaces of the cylinder body and the end socket in point contact, and taking out the assembling valve from the polar hole;
and (4) sequentially detaching the cylinder body and other assembling petals of the end socket and taking out the assembling petals from the polar hole to finish the disassembling work of the die.
The mold block after being taken out needs to be subjected to surface treatment so as to be used continuously next time.
The utility model discloses a structure is ingenious, forms the modularization frock, and the mould that can conveniently dismantle is prepared through reasonable equipment, has alleviateed the weight of mould effectively, has improved the size precision behind the high temperature curing of combined material goods greatly, can satisfy the manufacturing of jumbo size no inside lining combined material storage tank, and the transportation is also convenient, does benefit to reuse, and in addition, this mould and design method still can popularize to the manufacturing of other large-scale no inside lining container components, and the practicality is strong, is worth promoting.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (8)
1. The reusable mould for producing the large-size lining-free composite material storage box is characterized by comprising a detachable/assembled barrel body consisting of a plurality of barrel body assembling petals, two detachable/assembled seal heads arranged at two ends of the detachable/assembled barrel body and consisting of a plurality of seal head assembling petals and a plurality of support frames arranged inside the seal heads and the barrel body; the top ends of a plurality of seal head assembling petals of the detachable/assembled seal head are surrounded to form a polar hole, and the size of the polar hole is set to at least take out the seal head assembling petals and the barrel assembling petals from the polar hole.
2. The reusable mold for producing a large-size lining-free composite material storage tank as claimed in claim 1, wherein the side edges and the bottom edges of the head assembling flaps and the barrel assembling flaps are provided with protruding connectors, the two adjacent assembling flaps on the head and the barrel are fixed by connecting the protruding connectors on the side edges of the two assembling flaps, and the bottom edge of the barrel assembling flaps forming the barrel is connected and fixed with the protruding connectors on the bottom edge of the head assembling flaps forming the head to form the integral mold.
3. The reusable mold for the production of large-sized linerless composite storage tanks as recited in claim 2, wherein at least two adjacent assembling flaps of the header and the barrel are provided with an inclined surface on one side, and the two inclined surfaces are arranged adjacently, so that the outer surfaces of the two adjacent assembling flaps are in point contact for easy disassembly.
4. A reusable mold for the production of large-sized linerless composite material tanks as recited in claim 3, wherein two adjacent segmented flaps whose outer surfaces are in point contact are secured at their inner surfaces by long bolts connecting the raised connectors on the side edges of the two segmented flaps.
5. The reusable mold for the production of large-sized linerless composite storage tanks as recited in claim 2, wherein the adjacent two split flaps are secured by bolting the raised connectors on the side edges of the two split flaps together.
6. The reusable die for producing the large-size lining-free composite material storage box according to claim 1, wherein one end of each support frame is connected to a shaft sleeve, the other end of each support frame is inserted into the assembly valve to be fixed, a central rotating shaft penetrates through the middle of each shaft sleeve, penetrates through the barrel body and the two seal heads, and is fixed through the cover plates arranged on the seal heads.
7. The reusable mold for producing a large-size lining-free composite material storage tank as claimed in claim 6, wherein the head assembling flaps and the barrel assembling flaps are further provided with a plurality of rings of reinforcing ribs along the axial direction, the reinforcing ribs are provided with holes, and one end of the support frame is inserted into the holes of the reinforcing ribs and is connected to the assembling flaps.
8. The reusable mold for producing a large-size linerless composite storage tank of claim 7 wherein 1 to 5 rings of reinforcing ribs are provided in both the head assembling flaps and the barrel assembling flaps in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921959854.7U CN211137822U (en) | 2019-11-14 | 2019-11-14 | Reusable mould for producing large-size lining-free composite material storage box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921959854.7U CN211137822U (en) | 2019-11-14 | 2019-11-14 | Reusable mould for producing large-size lining-free composite material storage box |
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| CN211137822U true CN211137822U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921959854.7U Active CN211137822U (en) | 2019-11-14 | 2019-11-14 | Reusable mould for producing large-size lining-free composite material storage box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722719A (en) * | 2019-11-14 | 2020-01-24 | 江苏君澄空间科技有限公司 | Reusable mould for producing large-size lining-free composite material storage box |
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- 2019-11-14 CN CN201921959854.7U patent/CN211137822U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722719A (en) * | 2019-11-14 | 2020-01-24 | 江苏君澄空间科技有限公司 | Reusable mould for producing large-size lining-free composite material storage box |
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