CN204024856U - A kind of engine chamber afterbody powder charge forming unit - Google Patents
A kind of engine chamber afterbody powder charge forming unit Download PDFInfo
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- CN204024856U CN204024856U CN201420379829.2U CN201420379829U CN204024856U CN 204024856 U CN204024856 U CN 204024856U CN 201420379829 U CN201420379829 U CN 201420379829U CN 204024856 U CN204024856 U CN 204024856U
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- afterbody
- forming unit
- powder charge
- insulation layer
- heat insulation
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Abstract
The utility model provides a kind of engine chamber afterbody powder charge forming unit, comprising: core; Burning chamber shell afterbody heat insulation layer; Moulding boiling circle, around described core, and with the edge matching of described burning chamber shell afterbody heat insulation layer; Afterbody forming die, is fixed in described moulding boiling circle.Engine chamber afterbody powder charge forming unit has ensured engine chamber afterbody charge constitution, has ensured the charge constitution integrity of product, has improved the shaping quality of product, guarantees that product tail structure meets designing requirement.
Description
Technical field
The utility model relates to machine die design field, relates in particular to a kind of engine chamber afterbody powder charge forming unit.
Background technique
Along with the raising of missile weapon system tactics index, to the performance of motor propellant agent, structure shape, the requirement of the indexs such as the packing factor of propellant agent is also more and more higher, certain model engine combustion chamber structure is designed to improve propellant agent packing factor, adopt large hatch frame at burning chamber shell afterbody, propellant agent afterbody profile top exceeds the about 27mm of motor afterbody heat insulation layer bottom machine mouth, be steamed bun shape, due to afterbody propellant agent profile complex structure, adopt traditional carefully and neatly done shape of artificial hand, shaping workload is large, time-consuming, there is very large potential safety hazard and be difficult to shaping and put in place, initial combustion face can not get effective guarantee.
Model utility content
The utility model provides a kind of engine chamber afterbody powder charge forming unit, solving afterbody propellant agent profile complex structure, initially combustion face can not get the problem effectively ensureing.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of engine chamber afterbody powder charge forming unit, comprising: core; Burning chamber shell afterbody heat insulation layer; Moulding boiling circle, around described core, and with the edge matching of described burning chamber shell afterbody heat insulation layer; Afterbody forming die, is fixed in described moulding boiling circle.
Further, described burning chamber shell afterbody heat insulation layer comprises burning chamber shell afterbody heat insulation layer bottom and burning chamber shell afterbody heat insulation layer cap rock.
Further, the gap of described moulding boiling circle profile and described burning chamber shell afterbody heat insulation layer fitting surface is 0.5mm.
Further, described afterbody forming die has the race material taper hole being evenly arranged.
Further, the tapering of described race material taper hole is 1:100.
Further, the aperture area summation of described race material taper hole is not less than 20% of described afterbody forming die bottom useful area.
Further, described afterbody forming die and described core fin gap are 1.2mm.
Further, after described moulding boiling circle, described afterbody forming die and engine assembly, exceed 30 ~ 50mm than propellant agent boiling position.
The engine chamber afterbody powder charge forming unit that the utility model provides has following beneficial effect: ensured engine chamber afterbody charge constitution, ensure the charge constitution integrity of product, improve the shaping quality of product, guaranteed that product tail structure meets designing requirement.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the cross-sectional view of the engine chamber afterbody powder charge forming unit that provides of the utility model embodiment.
In Fig. 1:
11: core; 12: moulding boiling circle; 13: afterbody forming die; 14: burning chamber shell afterbody heat insulation layer bottom; 15: burning chamber shell afterbody heat insulation layer cap rock; 16: propellant agent
Embodiment
Below in conjunction with the drawings and specific embodiments, the engine chamber afterbody powder charge forming unit the utility model proposes is described in further detail.According to the following describes and claims, advantage of the present utility model and feature will be clearer.It should be noted that, accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, aid illustration the utility model embodiment's object lucidly.
Core concept of the present utility model is, engine chamber afterbody powder charge forming unit has ensured engine chamber afterbody charge constitution, ensure the charge constitution integrity of product, improved the shaping quality of product, guaranteed that product tail structure meets designing requirement.
Fig. 1 is the cross-sectional view of the engine chamber afterbody powder charge forming unit that provides of the utility model embodiment.With reference to Fig. 1, a kind of engine chamber afterbody powder charge forming unit, comprising: core 11; Burning chamber shell afterbody heat insulation layer; Moulding boiling circle 12, around described core 11, and with the edge matching of described burning chamber shell afterbody heat insulation layer; Afterbody forming die 13, is fixed in described moulding boiling circle 12.
Further, described burning chamber shell afterbody heat insulation layer comprises burning chamber shell afterbody heat insulation layer bottom 14 and burning chamber shell afterbody heat insulation layer cap rock 15.
In the present embodiment, moulding boiling circle 12 profiles design according to the geomery of burning chamber shell afterbody heat insulation layer bottom 14 and burning chamber shell afterbody heat insulation layer cap rock 15, because burning chamber shell afterbody heat insulation layer is elastic rubbery body, there is certain amount of deformation, for ensureing fit up gap and precision, there is certain versatility, moulding boiling circle 12 profiles and burning chamber shell afterbody heat insulation layer fitting surface gap are 0.5mm, the material of moulding boiling circle 12 adopts non-ferrous metal duralumin, ageing treatment after processing, surface spraying tetrafluoroethylene releasing agent, ensured burning chamber shell afterbody heat insulation layer bottom 14 and burning chamber shell afterbody heat insulation layer cap rock 15 assembly parties at casting process in propellant casting, indeformable in solidification process, structure shape meets design requirement.
Afterbody forming die 13 profiles are according to engine chamber afterbody Y shape charge constitution geomery, connecting shaping boiling circle 12 designs, depress and withdrawing pattern convenience for ensureing afterbody forming die 13, afterbody forming die 13 is offered the race material taper hole of certain size and shape, tapering general recommendations 1:100, hole number is specifically depending on lower profile space, generally be evenly arranged, aperture area summation is not less than 20% of afterbody forming die 13 bottom useful area, afterbody forming die 13 and the about 1mm of moulding boiling circle 12 matching gap, afterbody forming die 13 and the core 11 about 1.2mm in fin gap, material adopts non-ferrous metal duralumin, ageing treatment after processing, surface spraying tetrafluoroethylene releasing agent, ensure that propellant agent afterbody profile is smooth, smooth, and demoulding shaping is convenient, fast.
In the present embodiment, afterbody forming die 13 is mainly determined by the boiling high integrity of engine chamber afterbody Y shape charge constitution and medicine slurry with the height of moulding boiling circle 12, density, viscosity and the pouring technology conditional decision that the boiling of medicine slurry is highly general and medicine is starched, can record by technological test, after moulding boiling circle 12, afterbody forming die 13 and engine assembly, generally should exceed the propellant agent 16 position 30～50mm that seethes with excitement.
Utilize the engine chamber afterbody powder charge forming unit that the utility model embodiment provides to carry out operation: receiving belt heat insulation layer burning chamber shell, hang in core 11 fixing, load onto moulding boiling circle 12 fixing, load onto successively pourable component, hang in cast cylinder and carry out propellant agent 16 pouring operations by technological requirement; Cast finishes, take off pourable component, contrast label correspondence is depressed afterbody forming die 13, depressing in operating process, rate of descent should slowly, steadily, be overflowed residual medicine to afterbody forming die 13 inner chambers race material holes and clear up, after afterbody forming die 13 is depressed and put in place in time, the positioning plate that closes, is fixed with fastening piece; Solidify after end, pull down positioning plate, hang out core 11, take off successively afterbody forming die 13, moulding boiling circle 12; With special tool, cleaning overlap, tests by technological requirement; Moulding boiling circle 12, afterbody forming die 13 are cleared up, be placed on specified position by the corresponding assembling of mark, stand-by.
In the engine chamber afterbody powder charge forming unit that the utility model embodiment provides, moulding boiling circle 12 designs according to burning chamber shell afterbody heat insulation layer shape, afterbody forming die 13 is according to powder charge core 11 shapes, binding engine afterbody charge constitution shape considers that medicine slurry boiling height design forms simultaneously.Before cast, load onto moulding boiling circle 12 and shower nozzle, card pourable component is poured into a mould by technological requirement, after casting complete, depressing afterbody forming die 13 puts in place fixing, form engine chamber afterbody Y shape charge constitution by moulding boiling circle 12, afterbody forming die 13 in conjunction with core 11, after solidifying end, take off successively core 11, afterbody forming die 13, moulding boiling circle 12, deburring, has realized engine chamber afterbody Y-shaped structure powder charge molding process.The engine chamber afterbody powder charge forming unit that the utility model embodiment provides has well ensured engine chamber afterbody Y shape charge constitution, ensure the charge constitution integrity of product, improve the shaping quality of product, guaranteed that product afterbody charge constitution meets designing requirement.
Obviously, those skilled in the art can carry out various changes and distortion and not depart from spirit and scope of the present utility model the utility model.Like this, if these amendments of the present utility model and within modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (8)
1. an engine chamber afterbody powder charge forming unit, is characterized in that, comprising:
Core;
Burning chamber shell afterbody heat insulation layer;
Moulding boiling circle, around described core, and with the edge matching of described burning chamber shell afterbody heat insulation layer;
Afterbody forming die, is fixed in described moulding boiling circle.
2. engine chamber afterbody powder charge forming unit according to claim 1, is characterized in that, described burning chamber shell afterbody heat insulation layer comprises burning chamber shell afterbody heat insulation layer bottom and burning chamber shell afterbody heat insulation layer cap rock.
3. engine chamber afterbody powder charge forming unit according to claim 1, is characterized in that, the gap of described moulding boiling circle profile and described burning chamber shell afterbody heat insulation layer fitting surface is 0.5mm.
4. engine chamber afterbody powder charge forming unit according to claim 1, is characterized in that, described afterbody forming die has the race material taper hole being evenly arranged.
5. engine chamber afterbody powder charge forming unit according to claim 4, is characterized in that, the tapering of described race material taper hole is 1:100.
6. engine chamber afterbody powder charge forming unit according to claim 4, is characterized in that, the aperture area summation of described race material taper hole is not less than 20% of described afterbody forming die bottom useful area.
7. engine chamber afterbody powder charge forming unit according to claim 1, is characterized in that, described afterbody forming die and described core fin gap are 1.2mm.
8. engine chamber afterbody powder charge forming unit according to claim 1, is characterized in that, after described moulding boiling circle, described afterbody forming die and engine assembly, exceeds 30 ~ 50mm than propellant agent boiling position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420379829.2U CN204024856U (en) | 2014-07-10 | 2014-07-10 | A kind of engine chamber afterbody powder charge forming unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420379829.2U CN204024856U (en) | 2014-07-10 | 2014-07-10 | A kind of engine chamber afterbody powder charge forming unit |
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| CN204024856U true CN204024856U (en) | 2014-12-17 |
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| CN201420379829.2U Active CN204024856U (en) | 2014-07-10 | 2014-07-10 | A kind of engine chamber afterbody powder charge forming unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762223A (en) * | 2016-12-18 | 2017-05-31 | 内蒙古航天红峡化工有限公司 | A kind of soft interlayer spacing shaped device of solid rocket motor grain |
| CN107806796A (en) * | 2017-11-16 | 2018-03-16 | 湖北三江航天红林探控有限公司 | Built-in type warhead fuze cavity and its positioner and loading method |
| CN109236498A (en) * | 2018-06-20 | 2019-01-18 | 湖北三江航天江河化工科技有限公司 | A kind of large size composite die |
-
2014
- 2014-07-10 CN CN201420379829.2U patent/CN204024856U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762223A (en) * | 2016-12-18 | 2017-05-31 | 内蒙古航天红峡化工有限公司 | A kind of soft interlayer spacing shaped device of solid rocket motor grain |
| CN107806796A (en) * | 2017-11-16 | 2018-03-16 | 湖北三江航天红林探控有限公司 | Built-in type warhead fuze cavity and its positioner and loading method |
| CN107806796B (en) * | 2017-11-16 | 2019-06-28 | 湖北三江航天红林探控有限公司 | Built-in type warhead fuze cavity and loading method |
| CN109236498A (en) * | 2018-06-20 | 2019-01-18 | 湖北三江航天江河化工科技有限公司 | A kind of large size composite die |
| CN109236498B (en) * | 2018-06-20 | 2023-11-21 | 湖北三江航天江河化工科技有限公司 | Large-scale compound mould |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200304 Address after: 201109 Minhang District, Shanghai Road, No. 1777 spring Patentee after: Shanghai Aerospace Chemical Industry Research Institute Address before: 201109 Minhang District, Shanghai Road, No. 1777 spring Patentee before: Shanghai Xin Li power-equipment research institute |