CN205362553U - Large -scale spacecraft is cast manufacturing of magnesium structure and is used sand box system - Google Patents
Large -scale spacecraft is cast manufacturing of magnesium structure and is used sand box system Download PDFInfo
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- CN205362553U CN205362553U CN201520956827.XU CN201520956827U CN205362553U CN 205362553 U CN205362553 U CN 205362553U CN 201520956827 U CN201520956827 U CN 201520956827U CN 205362553 U CN205362553 U CN 205362553U
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Abstract
The utility model relates to a large -scale spacecraft is cast manufacturing of magnesium structure and is used sand box system, through the modular design of unique plane sand box, excircle sand box, interior round sand box, solved adopt among the prior art holisticly go up that the area that the bottom boxd brought is big, the technical difficulty is big, many, problem that production efficiency is low consuming time.
Description
Technical field
This utility model relates to a kind of Large Spacecraft casting magnesium structural member manufacture sandbox system, 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, good decay resistance in spacecraft macrotype platform widely used.
Along with developing rapidly of China's aerospace industry, go into seriously the demand of the carrying out of detection, the foundation of space station, 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. adopt then is up to
At present, the ultra-large type magnesium alloy structural part technology of China below 2000mm is comparatively 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 adopt in traditional Fixture Design method, namely cast the upper drag box of same oversize 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 significantly high for production site, storage space, this technology is not suitable for small-sized production unit；On the other hand, the component of upper drag box casts because of too large in size, so also improving the difficulty of production, increase consuming time, reduces production efficiency.
Utility model content
Technical problem to be solved in the utility model is to be required for using upper drag box structure fabrication for the manufacture of spacecraft casting magnesium structural member in prior art, the problem that floor space is big, production difficulty is big, and then provide one to save occupation of land, technology Combined type sand box system 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 sandbox system, comprising:
Plane sandbox, has circular sandbox support, and support includes the first annulus that annular is nested, and concentric with the first annulus and be positioned at the second annulus within described first annulus；Be provided with between the first annulus and the second annulus multiple equally distributed, for connecting the radially connected part of two annulus；Described plane sandbox is made up of the plane sub-sand case of several deciles；
Cylindrical sandbox, for annular stent, the internal diameter of described cylindrical sandbox is equal to the internal diameter of plane sandbox the first annulus；
First inner circle sandbox, for annular stent；It is arranged in the second annulus of described plane sandbox and is arranged concentrically with the second annulus；
Second inner circle sandbox, for annular stent, the internal diameter of described second inner circle sandbox is more than the internal diameter of the first inner circle sandbox, the first inner circle sandbox and the second inner circle sandbox nested, concentric；Described second inner circle sandbox is equal with the second internal radius of plane sandbox.
Each connector offers socket, the annular stent of cylindrical sandbox is evenly distributed with the adaptive insertable plug-in unit of multiple and described socket；Second annulus is provided with the projection towards the first annulus.
On described plane sandbox, being additionally provided with the 3rd annulus, described 3rd annulus is arranged between described first annulus and the second annulus, through described 3rd annulus of each described connector.
Being additionally provided with core, described core includes substrate core, and 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 several top layer sub-sand core splicings, 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, and having at least one in multiple through holes is the first sprue, and having at least two through holes is 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 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 to described second sprue of described cast gate whirlpool is arranged, connect the extended bottom cross gate that has with cast gate whirlpool, 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；Described substrate core, interior core and top layer core may be contained between described plane core the first annulus inner edge and described second inner circle sandbox outer rim.
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 respectively from inside to outside, and middle sector element is made up of the peripheral cell of the circular micro unit being centrally located and all the other areas of this sector element of mean allocation.
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 is along substrate sub-sand core diameter to being made up of three sector element splicings respectively from inside to outside, middle sector element is made up of the peripheral cell of the circular micro unit being centrally located and all the other areas of this sector element of mean allocation, and bottom cross gate is arranged on 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 sandbox system, it includes plane sandbox, having circular sandbox support, support includes the first annulus that annular is nested, and concentric with the first annulus and be positioned at the second annulus within described first annulus；Be provided with between the first annulus and the second annulus multiple equally distributed, for connecting the radially connected part of two annulus；Described plane sandbox is made up of the plane sub-sand case of several deciles；Cylindrical sandbox, for annular stent, the internal diameter of described cylindrical sandbox is equal to the internal diameter of plane sandbox the first annulus；First inner circle sandbox, for annular stent；It is arranged in the second annulus of described plane sandbox and is arranged concentrically with the second annulus；Second inner circle sandbox, for annular stent, the internal diameter of described second inner circle sandbox is more than the internal diameter of the first inner circle sandbox, the first inner circle sandbox and the second inner circle sandbox nested, concentric；Described second inner circle sandbox is equal with the second internal radius of plane sandbox.
This structure passes through the modular design of the plane sandbox of uniqueness, cylindrical sandbox, inner circle sandbox, solve the technological difficulties needing to arrange drag box in prior art, such that it is able to utilize a set of sandbox to solve the casting problem of Large Spacecraft, significantly save floor space, reduced production difficulty.
Large Spacecraft described in the utility model casting magnesium structural member manufacture sandbox system is additionally provided with and is nested in the intrasystem combined type sand core of above-mentioned sandbox, and this combined type sand core includes three layers 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 several sector structure top layer sub-sand core splicings, offers multiple through hole on the sub-sand core of each fan-shaped top layer, and having at least one in multiple through holes is the first sprue, and having at least two through holes is 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 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.
This combined type sand core have employed separate combination type sand core structure first, namely substrate core, interior core and top layer core are the sand core structure of concatenation module, ensure that casting liquid can pass through top layer core, the structural design of interior core forms circulation, unique pouring channel structure on the one hand, ensure that the smoothly circulation of casting liquid, casting, also eliminate in prior art simultaneously and adopt that the floor space that the upper drag box of entirety and the sand core structure up and down of correspondence bring is big, technical difficulty is big, many, problem that production efficiency is low consuming time.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 in conjunction with accompanying drawing, this utility model is described in further detail, wherein
Fig. 1 is plane sandbox structural representation；
Fig. 2 is cylindrical sandbox structural representation；
Fig. 3 is the first inner circle sandbox and the second inner circle sandbox structural representation；
Fig. 4 is top layer sand core structure schematic diagram；
Fig. 5 is interior sand core structure schematic diagram；
Fig. 6 is substrate sand core structure schematic diagram；
Fig. 7 is combination core assembled state longitudinal sectional view.
In figure, accompanying drawing labelling is expressed as: 1-plane sandbox, 2-cylindrical sandbox, 3-the first inner circle sandbox, 4-the second inner circle sandbox, 5-the first annulus, 6-the second annulus, 7-connector, 8-plane sub-sand case, 9-the 3rd annulus, 11-top layer core, core in 12-, 13-substrate core, 14-top layer sub-sand core, 15-the first sprue, 16-rising head, 17-the second sprue, sub-sand core in 18-, 19-foundry goods type, 110-ingate, 111-cross gate, 112-bottom cross gate, 113-substrate sub-sand core, 114-top layer sub-sand core micro unit, sub-sand core micro unit in 115-, 116-circle micro unit, 117-peripheral cell, 118-cast gate whirlpool.
Detailed description of the invention
Large Spacecraft described in the utility model casting magnesium structural member manufacture sandbox system, it includes being positioned at the plane sandbox 1 of bottom, cylindrical sandbox the 2, first inner circle sandbox 3 and the second inner circle sandbox 4.
Plane sandbox 1, as shown in Figure 1, has circular sandbox support, and support includes the first annulus 5 that annular is nested, and concentric with the first annulus 5 and be positioned at the second annulus 6 within described first annulus 5；Be provided with between the first annulus 5 and the second annulus 6 multiple equally distributed, for connecting the radially connected part 7 of two annulus；As preferred embodiment, it is preferable that plane sandbox 1 is made up of the plane sub-sand case 8 of several deciles, it is most preferred that be made up of the plane sub-sand case 8 of 8 deciles；
Cylindrical sandbox 2, as shown in Figure 2, for annular stent, the internal diameter of cylindrical sandbox 2 is equal to the internal diameter of plane sandbox 1 first annulus 5；
First inner circle sandbox 3, as shown in Figure 3, for annular stent；It is arranged in the second annulus 6 of described plane sandbox 1 and is arranged concentrically with the second annulus 6；
Second inner circle sandbox 4, equally as shown in Figure 3, for annular stent, the internal diameter of the second inner circle sandbox 4 is more than the internal diameter of the first inner circle sandbox 3, the first inner circle sandbox 3 and the second inner circle sandbox 4 nested, concentric；Described second inner circle sandbox 4 is equal with the second annulus 6 internal diameter of plane sandbox 1.
Each connector 7 offers socket, the annular stent of cylindrical sandbox 2 is evenly distributed with the adaptive insertable plug-in unit of multiple and described socket；Second annulus 6 is provided with the projection towards the first annulus 5.
On described plane sandbox 1, being additionally provided with the 3rd annulus 9, described 3rd annulus 9 is arranged between described first annulus 5 and the second annulus 6, through described 3rd annulus 9 of each described connector 7.
Large Spacecraft manufacture sandbox system described in the utility model also includes combined type sand core, and when assembling, substrate core 13, interior core 12 and top layer core 11 may be contained between described plane sandbox 1 first annulus 5 inner edge and described second inner circle sandbox 4 outer rim.
From structure, combined type sand core has three layers sand core structure, respectively top layer core 11, interior core 12 and substrate core 13, and its assembled state is as shown in Figure 7.
Wherein, as shown in Figure 4, it includes being arranged on the top layer of interior core 12 top layer core 11 structure, contacts setting with interior core 12.From in shape, it is annular.Top layer core 11 is made up of several top layer sub-sand core 14 splicings, described top layer sub-sand core 14 is in sector structure, offering multiple through hole on each fan-shaped top layer sub-sand core 14, having at least one in multiple through holes is the first sprue 15, and having at least two through holes is rising head 16.Wherein, setting for top layer sub-sand core 14, its quantity can be set according to Practical Project demand, thus determine the size of each top layer sub-sand core 14 according to quantity, additionally, also to consider the actual demand of engineering for the design of through hole, but no matter the number of through hole arranges how many, at least ensureing in through hole that one is the first sprue 15, two is rising head 16.Setting for sprue and rising head 16, general first sprue 15 to be arranged on the position between two rising heads 16, as preferred embodiment, the position of the first sprue 15 and two rising heads 16 can be designed according to following setting: namely on the radial section of top layer core 11, first sprue 15 is positioned at the centre position of said two through hole, it is to say, two rising heads 16 are symmetrical arranged centered by the first sprue 15.
As shown in Figure 5, it is arranged on the top layer of substrate core 13 structure of interior core 12, contacts setting with substrate core 13.From in shape, interior core 12 is equally in annular, identical with the shape of aforementioned top layer core 11, size.From structure, interior core 12 offers the second sprue 17 connected with the first sprue 15 in the position corresponding with described top layer core 11 sprue；Interior core 12 is made up of sub-sand core 18 splicing in several, and it is internally formed, at interior core 12, the foundry goods die cavity 19 that longitudinal section is I-shaped, when arranging, require that foundry goods die cavity 19 connects with rising head 16, ingate 110 is offered in the direction near the second sprue 17 additionally, connect with foundry goods die cavity 19.Connect further with ingate 110 and direction further towards the second sprue 17 offers cross gate 111.The interior sub-sand core 18 of said structure, after splicing, forms the foundry goods die cavity 19 of annular I-shaped, annular ingate 110, circular cross-runner 111.
As shown in Figure 6, substrate core 13 is positioned at the lowermost end of combination core to substrate core 13 structure, and substrate core 13 is made up of the splicing of some substrate sub-sand cores 113.Substrate core 13 and interior core 12 and top layer core 11 all in circular and shape, size identical.Substrate core 13 offers cast gate whirlpool 118, cast gate whirlpool 118 connection corresponding to the second sprue 17 is arranged, connect the extended bottom cross gate 112 that has with cast gate whirlpool 118, bottom cross gate 112 is correspondingly arranged at below cross gate 111 described in interior core and is connected by cast gate whirlpool 118 with cross gate 111；Substrate sub-sand core 113, 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 14 be made up of at least three top layer sub-sand core micro unit 114, and described top layer sub-sand core micro unit 114 radially divides equally described top layer sub-sand core 14.Being presented in Fig. 1 the embodiment of optimum, namely each top layer sub-sand core 14 is radially made up of three top layer sub-sand core micro units 114 from inside to outside.
As preferred embodiment, combined type sand core described in the utility model, each interior sub-sand core 18 is made up of some interior sub-sand core micro units 115, and the quantity for interior sub-sand core micro unit 115 can be configured according to enforcement demand.Preferred described substrate sub-sand core 113 micro unit is radially made up of three sector element splicings from inside to outside respectively along substrate sub-sand core 113, and middle sector element is made up of the peripheral cell 117 of the circular micro unit 116 being centrally located and all the other areas of this sector element of mean allocation.As the embodiment that can convert, it is preferable that described second sprue 17 is positioned at the center of circular micro unit 116.
As on the basis of above-mentioned embodiment, it is preferable that each described substrate sub-sand 113 is made up of some substrate sub-sand core 113 micro units, and the quantity for substrate sub-sand core 113 micro unit can be configured according to enforcement demand.Preferred substrate sub-sand core 113 micro unit is radially made up of three sector element splicings from inside to outside respectively along substrate sub-sand core 113, middle sector element is made up of the peripheral cell 117 of the circular micro unit 116 being centrally located and all the other areas of this sector element of mean allocation, and bottom cross gate 112 is arranged in described circular micro unit 116.
In the above-described embodiments, the first sprue 15 is set and the second sprue 17 is cylinder；Rising head 16 is trapezoidal, and rising head 16 upper end width is more than lower end width.
Sandbox system described in the utility model, operationally, need first the plane sub-sand case 8 of several deciles to be spliced conglobate plane sandbox 1, cylindrical sandbox 2 is positioned over the top of plane sandbox 1 again, make the overlapping placement of the first annulus 5 of cylindrical sandbox 2 peace facing sand case 1, in order to improve its stability, it is possible to adopting fixing soil property to be fixed or adopt, the cooperation of socket and plug-in unit is fixing is aided with fixing soil property and fixes simultaneously；Then the first inner circle sandbox 3 is positioned over the second annulus 6 inside of plane sandbox 1 and is arranged concentrically with the second annulus 6, place overlapping for the second annulus 6 of the second inner circle sandbox 4 peace facing sand case 1 simultaneously, by fixing soil property, the first inner circle sandbox 3 and the second inner circle sandbox 4 are fixed equally；Finally substrate core 13, interior core 12 and top layer core 11 being layed in successively between plane sandbox 1 first annulus 5 inner edge and described second inner circle sandbox 4 outer rim, the combination completing sandbox is arranged.Afterwards, casting liquid is poured into from the first sprue 15 cast gate of top layer core 11, flow to bottom cross gate 112, casting liquid is constantly accumulated liquid level in bottom cross gate 112 and is risen and then enter in cross gate 111, enters, through cross gate 111, the casting realizing foundry goods in die cavity and produce after being full of by cross gate 111 gradually.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 it has been elaborated by this utility model already by above-mentioned specific embodiment; 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 (10)
1. a Large Spacecraft casting magnesium structural member manufacture sandbox system, it is characterised in that including:
Plane sandbox, has circular sandbox support, and support includes the first annulus that annular is nested, and concentric with the first annulus and be positioned at the second annulus within described first annulus；Be provided with between the first annulus and the second annulus multiple equally distributed, for connecting the radially connected part of two annulus；Described plane sandbox is made up of the plane sub-sand case of several deciles；
Cylindrical sandbox, for annular stent, the internal diameter of described cylindrical sandbox is equal to the internal diameter of plane sandbox the first annulus；
First inner circle sandbox, for annular stent；It is arranged in the second annulus of described plane sandbox and is arranged concentrically with the second annulus；
Second inner circle sandbox, for annular stent, the internal diameter of described second inner circle sandbox is more than the internal diameter of the first inner circle sandbox, the first inner circle sandbox and the second inner circle sandbox nested, concentric；Described second inner circle sandbox is equal with the second internal radius of plane sandbox.
2. sandbox system according to claim 1, it is characterised in that offer socket on each connector, is evenly distributed with the adaptive insertable plug-in unit of multiple and described socket on the annular stent of cylindrical sandbox；Second annulus is provided with the projection towards the first annulus.
3. sandbox system according to claim 1 and 2, it is characterised in that on described plane sandbox, is additionally provided with the 3rd annulus, and described 3rd annulus is arranged between described first annulus and the second annulus, through described 3rd annulus of each described connector.
4. sandbox system according to claim 3, it is characterised in that be additionally provided with core, described core includes substrate core, and 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 several top layer sub-sand core splicings, 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, and having at least one in multiple through holes is the first sprue, and having at least two through holes is 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 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 to described second sprue of described cast gate whirlpool is arranged, connect the extended bottom cross gate that has with cast gate whirlpool, 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；Described substrate core, interior core and top layer core may be contained between described plane core the first annulus inner edge and described second inner circle sandbox outer rim.
5. sandbox system according to claim 4, 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.
6. sandbox system according to claim 5, 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.
7. sandbox system according to claim 4, 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 respectively from inside to outside, and middle sector element is made up of the peripheral cell of the circular micro unit being centrally located and all the other areas of this sector element of mean allocation.
8. sandbox system according to claim 4, it is characterised in that described second sprue is positioned at the center of circular micro unit.
9. sandbox system 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 is along substrate sub-sand core diameter to being made up of three sector element splicings respectively from inside to outside, middle sector element is made up of the peripheral cell of the circular micro unit being centrally located and all the other areas of this sector element of mean allocation, and bottom cross gate is arranged on described circular micro unit.
10. sandbox system according to claim 4, 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 |
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| CN201520956827.XU CN205362553U (en) | 2015-11-26 | 2015-11-26 | Large -scale spacecraft is cast manufacturing of magnesium structure and is used sand box system |
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| CN201520956827.XU CN205362553U (en) | 2015-11-26 | 2015-11-26 | Large -scale spacecraft is cast manufacturing of magnesium structure and is used sand box system |
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