CN107420222B - A kind of powder charge core model - Google Patents
A kind of powder charge core model Download PDFInfo
- Publication number
- CN107420222B CN107420222B CN201710718688.0A CN201710718688A CN107420222B CN 107420222 B CN107420222 B CN 107420222B CN 201710718688 A CN201710718688 A CN 201710718688A CN 107420222 B CN107420222 B CN 107420222B
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- hole
- plug
- jacket
- shell
- core model
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/08—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants
- F02K9/24—Charging rocket engines with solid propellants; Methods or apparatus specially adapted for working solid propellant charges
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Catching Or Destruction (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of powder charge core model, including pedestal, it is vertically connected with connecting rod on pedestal, the housing parallel to powder charge is arranged in connecting rod, and one end is mounted on the base, and the other end is connect by positioning ring with connecting rod；Enclosure interior is axially arranged with plug；The middle part of shell side is equipped with side spray hole, and plug is equipped with the through hole to connect with side spray hole；It is equipped on the inside of side spray hole and is positioned to jacket, bottom is equipped with through-hole, is connected to through hole；The through hole is also configured with for compressing the compressor arm for being positioned to jacket.The features such as present invention has in structure to be positioned reliably, adjustable to seal, is compact-sized convenient for assembly and demoulding, and safe operation is reliable, the technique for meeting the motor charge requires.The powder charge core model has succeeded on more bench-type engines, and made engine, structure size fully meets requirement, and qualification rate has reached 100%.
Description
Technical field
The invention belongs to solid propellant rocket manufacturing technology fields, and in particular to a kind of powder charge core model.
Background technique
Powder charge core model is formed for Solid Rocket Motor combustion chamber powder column, and general engine structure is that have front and back to be open,
Its powder column main channel is through-hole.Some engine Types of Medicine features are that powder column is made of main channel and wing slot, and main channel is elongated；Start
Without through-hole, side has hole is vertical with main channel and wing slot mutually to pass through for machine front end.Therefore how to ensure the integrality of powder column moulding surface structure
It is very important.
Summary of the invention
The present invention provides a kind of powder charge core model, to solve a kind of side spout and the solid mutually passed through vertical with axial main channel
The powder charge problem of rocket chamber.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of powder charge core model, including pedestal, bottom
It is vertically connected with connecting rod on seat, the housing parallel to powder charge is arranged in connecting rod, and one end is mounted on the base, and it is fixed that the other end passes through
Position ring is connect with connecting rod；Enclosure interior is axially arranged with plug；The middle part of shell side is equipped with side spray hole, and plug is equipped with and side spray
The through hole that hole connects；It is equipped on the inside of side spray hole and is positioned to jacket, bottom is equipped with through-hole, is connected to through hole；The through-hole
Place is also configured with for compressing the compressor arm for being positioned to jacket.The compressor arm is equipped with screw thread, is connected with through hole by screw thread
It connects.
Further, the shell is equipped with opening far from one end of pedestal, and part plug is located at hull outside；Plug packet
Include mandrel and the surrounding span；The center of positioning ring is equipped with positioning ring inner hole, and positioning ring inner hole and mandrel are cooperatively connected.
Further, bit transitions ring is additionally provided between the positioning ring and pedestal, the center of bit transitions ring is equipped with
Bit transitions ring inner hole, is cooperatively connected between the span, and the outer rim of bit transitions ring is fixed across connecting rod.
Further, the positioning ring is equipped with heavy platform by bit transitions ring side；Bit transitions ring is set by positioning ring side
There is boss, heavy platform and boss cooperate clamping.
Further, described to be positioned between jacket and shell fasten by connecting stud.
Further, be positioned to be equipped with flange on the outside of jacket, be positioned to be additionally provided between jacket and shell seal joint and
Sealing cord is positioned to jacket and passes through bolt presses seal joint and sealing cord.
The molding method of powder charge is carried out using powder charge core model, which comprises the following steps:
1) shell and plug are fixed between pedestal and positioning ring, the radial positioning of plug is realized by positioning ring；
2) in side spray hole, installation is positioned to jacket, compressor arm, realizes the axially position of plug；
3) casting medicine slurry, heating cure molding are carried out by shell end；Finally demoulded.
Further, when demoulding, first removing is positioned to jacket, then plug is deviate from together with positioning ring.
The invention has the following advantages:
1, it by positioning ring and is positioned to jacket and fixes end to powder charge Solid Rocket Motor combustion chamber shell respectively
Opening and side spout, and be easy to demould after the completion of powder charge, it can be ensured that the integrality in powder column type face after powder charge.
2, by setting positioning ring and bit transitions ring, it is cleverly positioned using the structure of plug, avoids core
Stick skew, influences charging quality.
3, the dual fail-safe by being positioned between jacket and shell, it is ensured that it is positioned to realize sealing between jacket and shell,
It avoids during casting, side opening leaks medicine strike-through.
The present invention has positioning reliable in structure, convenient for assembly and demoulding, adjustable sealing, compact-sized, operation peace
The features such as complete reliable, meets the technique requirement of the motor charge.The powder charge core model has succeeded on more bench-type engines, made
The engine of work, structure size fully meet requirement, and qualification rate has reached 100%.
Detailed description of the invention
Fig. 1 is that the core model of inventive shell side spray orifice assembles schematic cross-section.
Fig. 2 is the axial sectional diagrammatical view illustration of inventive shell side spray orifice Types of Medicine.
Fig. 3 provides the structural schematic diagram of core model assembly for the present invention.
Fig. 4 is the Types of Medicine radial cross section of side spray orifice.
Specific embodiment
With reference to embodiments and attached drawing further illustrates the present invention, but the scope of protection of present invention is not limited to
In the range of embodiment statement.
As shown in Figs 1-4, a kind of powder charge core model, including pedestal 1 are vertically connected with connecting rod 2 on pedestal, the shell to powder charge
13 are parallel to connecting rod setting, and one end is mounted on the base, and the other end is connect by positioning ring 5 with connecting rod；13 inner shaft of shell
To equipped with plug 3；The middle part of 13 side of shell is equipped with side spray hole 12, and plug is equipped with the through hole 33 to connect with side spray hole 12；
It is equipped on the inside of side spray hole 12 and is positioned to jacket 9, bottom is equipped with through-hole, is connected to through hole；It is connect convenient for observing it with plug
Contacting surface whether there is gap, which is also configured with for compressing the compressor arm 7 for being positioned to jacket, further eliminate plug and
It is positioned to the gap of jacket.It through hole and is positioned to be gap-matched between jacket；Make plug in moveable state,
Plug axially position can be achieved.
Preferably, the shell is equipped with opening far from one end of pedestal, and part plug is located at hull outside；Plug includes
Mandrel 31 and the surrounding span 32；The center of positioning ring 5 is equipped with positioning ring inner hole 51, and positioning ring inner hole and mandrel cooperation connect
It connects.
Further, it is additionally provided with bit transitions ring 4 between the positioning ring 5 and pedestal, the center of bit transitions ring 4 is set
There is bit transitions ring inner hole 41, is cooperatively connected between the span 32, is cooperated with small gap, the outer rim of bit transitions ring 4
It is fixed across connecting rod.
Further, the positioning ring is equipped with heavy platform 52 by bit transitions ring side；Bit transitions ring leans on positioning ring one
Side is equipped with boss 42, and heavy platform 52 and boss 42 cooperate clamping.It realizes the radial positioning of plug, can avoid plug skew.
Preferably, described to be positioned between jacket 9 and shell 13 fasten by connecting stud.
Preferably, be positioned to be equipped with flange on the outside of jacket 9, be positioned to be additionally provided between jacket 9 and shell seal joint 6 and
Sealing cord 11 is positioned to jacket 9 and passes through bolt presses seal joint and sealing cord.Push sealing clamp mobile to shell end face；
It squeezes sealing cord and has the function that sealing, to guarantee Types of Medicine, avoid during casting, side opening leaks medicine strike-through.
The molding method of powder charge is carried out using above-mentioned powder charge core model, comprising the following steps:
1) shell and plug are fixed between pedestal and positioning ring, the radial positioning of plug is realized by positioning ring；
2) in side spray hole, installation positioning molding covers compressor arm, realizes the axially position of plug；
3) it by carrying out casting medicine slurry, forms；Finally demoulded.
Further, when demoulding, first removing is positioned to jacket, then plug is deviate from together with positioning ring.Specifically, first
Connecting stud is removed, jacket abjection can will be positioned to, then remove the attaching nut of positioning ring and connecting rod, and screw stripper bolt,
Deviate from plug together with positioning ring.
Claims (8)
1. a kind of powder charge core model, it is characterised in that: including pedestal (1), be vertically connected on pedestal connecting rod (2), the shell to powder charge
Body (13) is parallel to connecting rod setting, and one end is mounted on the base, and the other end is connect by positioning ring (5) with connecting rod；Shell
(13) internal to be axially arranged with plug (3)；The middle part of shell (13) side is equipped with side spray hole (12), and plug is equipped with and side spray hole
(12) through hole (33) to connect；It is equipped with and is positioned to jacket (9) on the inside of side spray hole (12), bottom is equipped with through-hole, with perforation
Hole connection；The through hole is also configured with for compressing the compressor arm (7) for being positioned to jacket.
2. core model according to claim 1, it is characterised in that: the shell is equipped with opening, portion far from one end of pedestal
Plug is divided to be located at hull outside；Plug includes mandrel (31) and the surrounding span (32)；The center of positioning ring (5) is equipped with positioning
Ring inner hole (51), positioning ring inner hole and mandrel are cooperatively connected.
3. core model according to claim 2, it is characterised in that: be additionally provided with positioning between the positioning ring (5) and pedestal
Transition rings (4), the center of bit transitions ring (4), which is equipped with to cooperate between bit transitions ring inner hole (41), with the span (32), to be connected
It connects, the outer rim of bit transitions ring (4) is fixed across connecting rod.
4. core model according to claim 3, it is characterised in that: the positioning ring is equipped with heavy platform by bit transitions ring side
(52)；Bit transitions ring is equipped with boss (42) by positioning ring side, and heavy platform (52) and boss (42) cooperate clamping.
5. core model according to claim 1, it is characterised in that: described to be positioned to pass through between jacket (9) and shell (13)
Connecting stud fastening.
6. core model according to claim 5, it is characterised in that: be positioned to be equipped with flange on the outside of jacket (9), be positioned to jacket
(9) it is additionally provided with seal joint (6) and sealing cord (11) between shell, is positioned to jacket (9) and passes through bolt presses seal joint
And sealing cord.
7. carrying out the molding method of powder charge using powder charge core model described in claim 1-6 any one, which is characterized in that including with
Lower step:
1) shell and plug are fixed between pedestal and positioning ring, the radial positioning of plug is realized by positioning ring；
2) in side spray hole, installation is positioned to jacket, compressor arm, realizes the axially position of plug；
3) casting medicine slurry, heating cure molding are carried out by shell end；Finally demoulded.
8. according to the method described in claim 7, it is characterized by: first removing is positioned to jacket, then by plug and determines when demoulding
Position ring is deviate from together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710718688.0A CN107420222B (en) | 2017-08-21 | 2017-08-21 | A kind of powder charge core model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710718688.0A CN107420222B (en) | 2017-08-21 | 2017-08-21 | A kind of powder charge core model |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107420222A CN107420222A (en) | 2017-12-01 |
| CN107420222B true CN107420222B (en) | 2019-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710718688.0A Active CN107420222B (en) | 2017-08-21 | 2017-08-21 | A kind of powder charge core model |
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| CN (1) | CN107420222B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691691A (en) * | 2018-03-12 | 2018-10-23 | 西安航天化学动力有限公司 | A kind of combined type fin having dovetail seal groove |
| CN108592713A (en) * | 2018-06-21 | 2018-09-28 | 湖北三江航天江河化工科技有限公司 | A kind of warhead manufacturing device |
| CN109736966B (en) * | 2018-12-25 | 2021-11-16 | 内蒙合成化工研究所 | Shaping-free forming method for end face of silver-embedded wire explosive column of solid rocket engine |
| CN110282533B (en) * | 2019-07-15 | 2024-07-26 | 武汉乾峯智能科技有限公司 | Pick-up moving synchronous translation mechanism and automatic die taking device |
| CN110566366B (en) * | 2019-09-02 | 2021-07-13 | 湖北三江航天江河化工科技有限公司 | Combined core mold structure for rocket engine grain molding and use method thereof |
| CN110792527B (en) * | 2019-10-09 | 2021-04-13 | 上海新力动力设备研究所 | Powder charge bearing structure |
| CN113374598B (en) * | 2021-06-03 | 2023-03-24 | 湖北三江航天江河化工科技有限公司 | Error-proof charge core mould and assembling method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2201170A1 (en) * | 1972-09-28 | 1974-04-26 | Haut Rhin Manufacture Machines | Propellent charge structure - with prismatic powder sections in a moulded plastic coating |
| EP1955988A1 (en) * | 2007-02-07 | 2008-08-13 | Bayern-Chemie Gesellschaft für flugchemische Antriebe mbH | Method for casting a solid fuel propulsion unit |
| CN203515858U (en) * | 2013-10-24 | 2014-04-02 | 西安航天化学动力厂 | Powder forming press cover for standard test engine |
-
2017
- 2017-08-21 CN CN201710718688.0A patent/CN107420222B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2201170A1 (en) * | 1972-09-28 | 1974-04-26 | Haut Rhin Manufacture Machines | Propellent charge structure - with prismatic powder sections in a moulded plastic coating |
| EP1955988A1 (en) * | 2007-02-07 | 2008-08-13 | Bayern-Chemie Gesellschaft für flugchemische Antriebe mbH | Method for casting a solid fuel propulsion unit |
| CN203515858U (en) * | 2013-10-24 | 2014-04-02 | 西安航天化学动力厂 | Powder forming press cover for standard test engine |
Non-Patent Citations (1)
| Title |
|---|
| 84英寸推进剂药筒与药柱 第三卷 附录;TerryV.O’Hara等;《国外固体火箭技术》;19810331;第123-132页 |
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| Publication number | Publication date |
|---|---|
| CN107420222A (en) | 2017-12-01 |
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