CN205414319U - Magnesium structure combination formula psammitolite for manufacturing is cast to large -scale spacecraft - Google Patents
Magnesium structure combination formula psammitolite for manufacturing is cast to large -scale spacecraft Download PDFInfo
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- CN205414319U CN205414319U CN201520956826.5U CN201520956826U CN205414319U CN 205414319 U CN205414319 U CN 205414319U CN 201520956826 U CN201520956826 U CN 201520956826U CN 205414319 U CN205414319 U CN 205414319U
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Abstract
The utility model relates to a magnesium structure combination formula psammitolite for manufacturing is cast to large -scale spacecraft should make up the initial separation combination formula psammitolite structure that has adopted of formula psammitolite, and top layer psammitolite, interior psammitolite and basement psammitolite are concatenation modular psammitolite structure promptly, and three -layer psammitolite sprue links up each other, constitutes holistic sprue, and the liquid of ensureing to cast circulates smoothly, pours into a mould. The utility model discloses combination formula psammitolite design has solved that the area who adopts the holistic upper and lower psammitolite structure that goes up the bottom boxd and correspond to bring is big, the technical difficulty is big, many, problem that production efficiency is low consuming time among the prior art. And when non - manufacturing state, combination formula psammitolite also can superpose and deposit, has saved area greatly.
Description
Technical field
This utility model relates to a kind of Large Spacecraft casting magnesium structural member manufacture combined type sand core, is used for manufacturing spacecraft propulsion modular structure instrument disk, belongs to casting technology field.
Background technology
Since entering 21st century, the spacecraft overall dimensions such as the aerospace industry of China obtains significant progress, satellite are gradually increased, and require platform structure lightweight.In structural metallic materials, the minimum magnesium alloy of density with its good bio-compatibility, the highest specific stiffness and specific strength, excellent processing performance, preferable decay resistance in spacecraft macrotype platform widely used.
Along with developing rapidly of China's aerospace industry, go into seriously the carrying out of detection, the foundation of space station, the demand of Future Launch Rocket, large and close mode development to spacecraft cast product are had higher requirement, the overall dimensions of heavy castings product is up to 4000mm, and the cast structure part that secondary military repeater satellite, low rail remote sensing, high rail electronic reconnaissance large platform satellite, cargo ship etc. use then is up to
At present, the ultra-large type magnesium alloy structural part technology of China below 2000mm is the most ripe, but reaches for sizeEspeciallyAbove ultra-large type magnesium alloy component is also anxious to be developed.In prior art, when casting above ultra-large type magnesium alloy component, remain in and use in traditional Fixture Design method, cast the upper drag box of same oversize the most respectively, and on completing, after the casting of drag box, also need to carry out the casting of integral sand core.
Owing to the upper drag box floor space of ultra-large type magnesium alloy component is very big, so requiring the highest for production site, storage space, this technology is not suitable for small-sized production unit；On the other hand, the component casting of upper drag box is too big because of size, so also improving the difficulty of production, time-consumingly increasing, reduces production efficiency.Similarly, the casting of integral sand core there is also and takies the problem that production site, the requirement of storage space and technical difficulty promote.
Utility model content
Technical problem to be solved in the utility model is that prior art medium-and-large-sized spacecraft casting magnesium structural member causes the problem that floor space is big, storage area is big, technical difficulty is high for utilizing the production of integral sand core to have been used up cast-in-block mode when manufacturing, so provide one save take up an area, technology combined type sand core simple, easy-operating.
For solving above-mentioned technical problem, this utility model is achieved through the following technical solutions:
A kind of Large Spacecraft casting magnesium structural member manufacture combined type sand core, it is characterised in that having three layers of sand core structure, respectively substrate core, described substrate core is made up of the splicing of some substrate sub-sand cores；
Interior core, is arranged on the top layer of substrate core, contacts setting with substrate core；
Top layer core, is arranged on the top layer of interior core, contacts setting with interior core；
Described substrate core, interior core with top layer core all in circular and shape, size identical；
Top layer core is made up of the splicing of several top layers sub-sand cores, and described top layer sub-sand core is sector structure, offers multiple through hole on the sub-sand core of each fan-shaped top layer, in multiple through holes at least one be the first sprue, at least two through holes are rising head；
Interior core offers, in the position corresponding with described top layer core sprue, the second sprue connected with the first sprue；Interior core is made up of sub-sand core splicing in several, and form the foundry goods die cavity that longitudinal section is I-shaped, described foundry goods die cavity connects with rising head, connect with described foundry goods die cavity and offering ingate near described second sprue, connect further with described ingate and offer cross gate further towards described second sprue；Interior sub-sand core, after splicing, forms the foundry goods die cavity of annular I-shaped, annular ingate, circular cross-runner；
Substrate core offers cast gate whirlpool, the connection corresponding with described second sprue of described cast gate whirlpool is arranged, connecting with cast gate whirlpool extended has bottom cross gate, and described bottom cross gate is correspondingly arranged at below cross gate described in interior core and is connected by cast gate whirlpool with described cross gate；Substrate sub-sand core, after splicing, forms annular bottom cross gate.
Each described top layer sub-sand core is made up of at least three top layer sub-sand core micro unit, and described top layer sub-sand core micro unit radially divides equally described top layer sub-sand core.
On the radial section of top layer core, it is provided with first sprue and two through holes, and the first sprue is positioned at the centre position of said two through hole.
Each interior sub-sand core is made up of some interior sub-sand core micro units, described interior sub-sand core micro unit is along substrate sub-sand core diameter to being made up of three sector element splicings the most respectively, and middle sector element is made up of the peripheral cell of remaining area of the circular micro unit and this sector element of mean allocation that are positioned at center.
Described second sprue is positioned at the center of circular micro unit.
Each described substrate sub-sand core is made up of some substrate sub-sand core micro units, described substrate sub-sand core micro unit along substrate sub-sand core diameter to being made up of the splicing of three sector elements the most respectively, middle sector element is made up of the peripheral cell of remaining area of the circular micro unit and this sector element of mean allocation that are positioned at center, and bottom cross gate is arranged in described circular micro unit.
First sprue and the second sprue are cylindrical；Rising head is trapezoidal, and rising head upper end width is more than lower end width.
Technique scheme of the present utility model has the advantage that compared to existing technology
Large Spacecraft described in the utility model casting magnesium structural member manufacture combined type sand core, this combined type sand core includes three layers of sand core structure, respectively substrate core, interior core and top layer core；And interior core is arranged on the top layer of substrate core, contact setting with substrate core；Top layer core is arranged on the top layer of interior core, contacts setting with interior core；Substrate core, interior core with top layer core all in circular and shape, size identical.Top layer core is made up of the splicing of several sector structure top layers sub-sand cores, offers multiple through hole on the sub-sand core of each fan-shaped top layer, in multiple through holes at least one be the first sprue, at least two through holes are rising head；Interior core offers the second sprue connected with the first sprue in the position corresponding with top layer core sprue；Interior core is made up of sub-sand core splicing in several, and form the foundry goods die cavity that longitudinal section is I-shaped, described foundry goods die cavity connects with rising head, connect with described foundry goods die cavity and offering ingate near described second sprue, connect further with ingate and offer cross gate further towards the second sprue；Interior sub-sand core, after splicing, forms the foundry goods die cavity of annular I-shaped, annular ingate, circular cross-runner.Substrate core is made up of the splicing of some substrate sub-sand cores equally.
Combined type sand core described in the utility model have employed separate combination type sand core structure first, i.e. substrate core, interior core and top layer core is the sand core structure of concatenation module, on the one hand ensure that casting liquid can pass through top layer core, the structure design forming circulation of interior core, unique pouring channel structure, ensure that the circulation smoothly of casting liquid, casting, also eliminate in prior art the problem that the floor space using the upper drag box of entirety and the sand core structure up and down of correspondence to be brought is big, technical difficulty big, the most, production efficiency is low simultaneously.And when non-fabrication state, combined type sand core can also be deposited in superposition, is greatly saved floor space.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model and combine accompanying drawing, this utility model is described in further detail, wherein
Fig. 1 is top layer sand core structure schematic diagram；
Fig. 2 is interior sand core structure schematic diagram；
Fig. 3 is substrate sand core structure schematic diagram；
Fig. 4 is top layer core, interior core assembled state longitdinal cross-section diagram.
In figure, reference is expressed as: 1-top layer core, core in 2-, 3-substrate core, 4-top layer sub-sand core, 5-the first sprue, 6-rising head, 7-the second sprue, sub-sand core in 8-, 9-foundry goods die cavity, 10-ingate, 11-cross gate, 12-bottom cross gate, 13-substrate sub-sand core, 14-top layer sub-sand core micro unit, sub-sand core micro unit in 15-, 16-circle micro unit, 17-peripheral cell, 18-cast gate whirlpool.
Detailed description of the invention
Large Spacecraft described in the utility model casts magnesium structural member manufacture combined type sand core, and it has three layers of sand core structure, respectively top layer core 1, interior core 2 and substrate core 3, and a combination thereof state is as shown in Figure 4.
Wherein, as shown in Figure 1, it includes being arranged on the top layer of interior core 2 top layer core 1 structure, contacts setting with interior core 2.From in shape, it is annular.Top layer core 1 is made up of several top layer sub-sand core 4 splicings, described top layer sub-sand core 4 is in sector structure, each fan-shaped top layer sub-sand core 4 offers multiple through hole, in multiple through holes at least one be the first sprue 5, at least two through holes are rising head 6.Wherein, setting for top layer sub-sand core 4, its quantity can be set according to Practical Project demand, thus the size of each top layer sub-sand core 4 is determined according to quantity, additionally, the actual demand of the design engineering to be considered for through hole, but no matter the number of through hole arranges how many, in through hole to be ensured, one is the first sprue 5, and two is rising head 6.For sprue and the setting of rising head 6, general first sprue 5 to be arranged on the position between two rising heads 6, as preferred embodiment, the position of the first sprue 5 and two rising heads 6 can be designed according to following setting: i.e. on the radial section of top layer core 1, first sprue 5 is positioned at the centre position of said two through hole, it is to say, two rising heads 6 are symmetrical arranged centered by the first sprue 5.
As shown in Figure 2, it is arranged on the top layer of substrate core 3 structure of interior core 2, contacts setting with substrate core 3.From in shape, interior core 2 is same in annular, identical with the shape of aforementioned top layer core 1, size.From the point of view of structure, interior core 2 offers the second sprue 7 connected with the first sprue 5 in the position corresponding with described top layer core 1 sprue；Interior core 2 is made up of sub-sand core 8 splicing in several, and it is internally formed, at interior core 2, the foundry goods die cavity 9 that longitudinal section is I-shaped, when arranging, it is desirable to foundry goods die cavity 9 connects with rising head 6, ingate 10 is offered in the direction near the second sprue 7 additionally, connect with foundry goods die cavity 9.Connect further with ingate 10 and direction further towards the second sprue 7 offers cross gate 11.The interior sub-sand core 8 of said structure, after splicing, forms the foundry goods die cavity 9 of annular I-shaped, annular ingate 10, circular cross-runner 11.
As shown in Figure 3, substrate core 3 is positioned at the lowermost end of combination core to substrate core 3 structure, and substrate core 3 is made up of the splicing of some substrate sub-sand cores 13.Substrate core 3 and interior core 2 and top layer core 1 all in circular and shape, size identical.Substrate core 3 offers cast gate whirlpool 18, cast gate whirlpool 18 connection corresponding with the second sprue 7 is arranged, connecting with cast gate whirlpool 18 extended has bottom cross gate 12, and bottom cross gate 12 is correspondingly arranged at below cross gate 11 described in interior core and is connected by cast gate whirlpool 18 with cross gate 11；Substrate sub-sand core 13, after splicing, forms annular bottom cross gate.
As can preferred embodiment, combined type sand core described in the utility model, each top layer sub-sand core 4 be made up of at least three top layer sub-sand core micro unit 14, and described top layer sub-sand core micro unit 14 radially divides equally described top layer sub-sand core 4.Being presented in Fig. 1 the embodiment of optimum, the most each top layer sub-sand core 4 is made up of three top layer sub-sand core micro units 14 the most from inside to outside.
As preferred embodiment, combined type sand core described in the utility model, each interior sub-sand core 8 is made up of some interior sub-sand core micro units 15, and the quantity for interior sub-sand core micro unit 15 can be configured according to enforcement demand.The most described substrate sub-sand core 13 micro unit is made up of three sector element splicings the most respectively along substrate sub-sand core 13, and middle sector element is made up of the peripheral cell 17 of remaining area of the circular micro unit 16 and this sector element of mean allocation that are positioned at center.As the embodiment that can convert, the most described second sprue 7 is positioned at the center of circular micro unit 16.
As on the basis of above-mentioned embodiment, the most each described substrate sub-sand core 13 is made up of some substrate sub-sand core 13 micro units, and the quantity for substrate sub-sand core 13 micro unit can be configured according to enforcement demand.Preferred substrate sub-sand core 13 micro unit is made up of three sector element splicings the most respectively along substrate sub-sand core 13, middle sector element is made up of the peripheral cell 17 of remaining area of the circular micro unit 16 and this sector element of mean allocation that are positioned at center, and bottom cross gate 12 is arranged in described circular micro unit 16.
In the above-described embodiments, the first sprue 5 is set and the second sprue 7 is cylinder；Rising head 6 is trapezoidal, and rising head 6 upper end width is more than lower end width.
Combined type sand core described in the utility model, operationally, casting liquid enters from the first sprue 5 cast gate of top layer core 1, flow to bottom cross gate 12, casting liquid is constantly accumulated liquid level in bottom cross gate 12 and is risen and then enter in cross gate 11, and the casting realizing foundry goods after being gradually full of by cross gate 11 in cross gate 11 enters die cavity produces.In casting cycle, gas, impurity and unnecessary solution will be shoved further up and be overflowed by rising head, and solution cooling volume reduces therewith, and rising head layer solution is just used for supplementing full foundry goods die cavity.
Although this utility model has passed through above-mentioned specific embodiment, it is elaborated; but; those skilled in the art should be understood that; the any form without departing from claims made on this basis and the change of details, belong to this utility model scope of the claimed.
Claims (7)
1. a Large Spacecraft casting magnesium structural member manufacture combined type sand core, it is characterised in that having three layers of sand core structure, respectively substrate core, described substrate core is made up of the splicing of some substrate sub-sand cores；
Interior core, is arranged on the top layer of substrate core, contacts setting with substrate core；
Top layer core, is arranged on the top layer of interior core, contacts setting with interior core；
Described substrate core, interior core with top layer core all in circular and shape, size identical；
Top layer core is made up of the splicing of several top layers sub-sand cores, and described top layer sub-sand core is sector structure, offers multiple through hole on the sub-sand core of each fan-shaped top layer, in multiple through holes at least one be the first sprue, at least two through holes are rising head；
Interior core offers, in the position corresponding with described top layer core sprue, the second sprue connected with the first sprue；Interior core is made up of sub-sand core splicing in several, and form the foundry goods die cavity that longitudinal section is I-shaped, described foundry goods die cavity connects with rising head, connect with described foundry goods die cavity and offering ingate near described second sprue, connect further with described ingate and offer cross gate further towards described second sprue；Interior sub-sand core, after splicing, forms the foundry goods die cavity of annular I-shaped, annular ingate, circular cross-runner；
Substrate core offers cast gate whirlpool, the connection corresponding with described second sprue of described cast gate whirlpool is arranged, connecting with cast gate whirlpool extended has bottom cross gate, and described bottom cross gate is correspondingly arranged at below cross gate described in interior core and is connected by cast gate whirlpool with described cross gate；Substrate sub-sand core, after splicing, forms annular bottom cross gate.
Combined type sand core the most according to claim 1, it is characterised in that each described top layer sub-sand core is made up of at least three top layer sub-sand core micro unit, described top layer sub-sand core micro unit radially divides equally described top layer sub-sand core.
Combined type sand core the most according to claim 1 and 2, it is characterised in that on the radial section of top layer core, is provided with first sprue and two through holes, and the first sprue is positioned at the centre position of said two through hole.
Combined type sand core the most according to claim 3, it is characterized in that, each interior sub-sand core is made up of some interior sub-sand core micro units, described interior sub-sand core micro unit is along substrate sub-sand core diameter to being made up of three sector element splicings the most respectively, and middle sector element is made up of the peripheral cell of remaining area of the circular micro unit and this sector element of mean allocation that are positioned at center.
Combined type sand core the most according to claim 4, it is characterised in that described second sprue is positioned at the center of circular micro unit.
Combined type sand core the most according to claim 4, it is characterized in that, each described substrate sub-sand core is made up of some substrate sub-sand core micro units, described substrate sub-sand core micro unit along substrate sub-sand core diameter to being made up of the splicing of three sector elements the most respectively, middle sector element is made up of the peripheral cell of remaining area of the circular micro unit and this sector element of mean allocation that are positioned at center, and bottom cross gate is arranged in described circular micro unit.
Combined type sand core the most according to claim 3, it is characterised in that the first sprue and the second sprue are cylindrical；Rising head is trapezoidal, and rising head upper end width is more than lower end width.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956826.5U CN205414319U (en) | 2015-11-26 | 2015-11-26 | Magnesium structure combination formula psammitolite for manufacturing is cast to large -scale spacecraft |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520956826.5U CN205414319U (en) | 2015-11-26 | 2015-11-26 | Magnesium structure combination formula psammitolite for manufacturing is cast to large -scale spacecraft |
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| CN205414319U true CN205414319U (en) | 2016-08-03 |
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| CN201520956826.5U Active CN205414319U (en) | 2015-11-26 | 2015-11-26 | Magnesium structure combination formula psammitolite for manufacturing is cast to large -scale spacecraft |
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