CN104612856B - A kind of band medicine reel stress release device - Google Patents
A kind of band medicine reel stress release device Download PDFInfo
- Publication number
- CN104612856B CN104612856B CN201410714328.XA CN201410714328A CN104612856B CN 104612856 B CN104612856 B CN 104612856B CN 201410714328 A CN201410714328 A CN 201410714328A CN 104612856 B CN104612856 B CN 104612856B
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- CN
- China
- Prior art keywords
- core rod
- powder charge
- ring
- larynx hoop
- stress release
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Orthopedics, Nursing, And Contraception (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of band medicine reel stress release device, the problem solving to cause electromotor operation irregularity even to disintegrate owing to powder charge is subject to reel stress when being wound around.The present invention is made up of core rod, front and back baffle ring, front and back draw-in groove, front and back locating ring, larynx hoop, before and after wherein, locating ring is respectively placed in front and back draw-in groove two independent positioning tools of composition, and by larynx hoop banding respectively, front and back positioning tool is placed at powder charge two ends respectively, is inserted by core rod；By front-and-back stop loop mapping.The present invention is applicable to the Stress Release produced when spiral shell pressure star hole powder charge is wound around with medicine.
Description
Technical field
The present invention relates to a kind of stress release device, especially propellant reel stress release device, it is adaptable to propellant non-metal shell is wound around.
Background technology
In solid propellant engine manufacturing process, being wound around new technology compared with the technique carrying out propellant casting after traditional first winding housing with powder column, eliminate core frock indispensable in traditional handicraft and core makes, technics comparing is simple；It is lightweight compared with steel shell, and cost is low, is a kind of up-and-coming engine shell manufacturing method, domestic makes to carry out in this way motor body manufacture now with a small amount of rain rocket that increases.A current generation increases rain rocket charge and adopts spiral shell pressure Ledate-2 propellant, the type propellant intensity is high, hardness height is suitable for band medicine winding process, concrete winding process is that powder charge two ends adopt core bar support and fasten with nut, owing to such propellant intensity is good, so the fastening force of reel stress and nut is less on its impact, but Ledate-2 propellant energy is relatively low, range is nearer, so being currently suggested employing spiral shell pressure modified double base propellant to replace Ledate-2 propellant, to increase electromotor range, but modified double base propellant intensity is poor, if directly adopting former winding method that reel stress suffered by powder charge can be made excessive, find that reel stress makes propellant internal ballistics attributes change and then makes electromotor operation irregularity through test, even disintegrate.
Summary of the invention
In order to overcome shortcomings and deficiencies of the prior art, the present invention provides a kind of device pressing the release of modified double base propellant reel stress suitable in spiral shell.
Stress release device provided by the invention, it is made up of core rod, front baffle ring, rear baffle ring, front bayonet slot, rear draw-in groove, prelocalization ring, rear locating ring, larynx hoop, wherein prelocalization ring inserts in front bayonet slot by larynx hoop banding, also by larynx hoop banding in draw-in groove after the insertion of rear locating ring, front and back positioning tool is placed at powder charge two ends respectively, and with the outer mold surface core rod traverse identical with profile in powder charge star hole, front and back carry out spacing with locating ring respectively.
Advantages of the present invention: (1) present invention can pass through core rod outer mold surface and be driven powder charge to rotate with positive in powder charge by core rod, stress produces on powder charge star tooth, after core rod is extracted out, stress relieved, do not accumulate on powder column, reduce stress (2) locating ring suffered by powder charge and adopt two flap-type designs, will not produce to interfere to wrapping machine silk mouth when changing winding pattern, it is easy to carry out batch and be wound around.
Accompanying drawing explanation
Fig. 1 is the assembling section of the present invention.
1. core rod in figure, shelves ring before 2a., shelves ring after 2b., 3a. front bayonet slot, draw-in groove after 3b, 4a. prelocalization ring, locating ring after 4b, 5. larynx hoop, 6. powder charge, A core rod cross sectional view.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As it is shown in figure 1, be the installation diagram discharged with medicine reel stress when device uses of the present invention.
Prelocalization ring 4a inserts front bayonet slot 3a and by larynx hoop 5 banding, forms prelocalization frock；Rear locating ring 4b insert after draw-in groove 3b be made up of larynx hoop 3b banding after positioning tool, at core rod 1 successively insertion prelocalization frock, powder charge 6, rear positioning tool and undertaken spacing by front shelves ring 2a, rear shelves ring 2b.Then the powder column assembled is arranged on wrapping machine, is wound.Powder column produces stress due to the effect being subject to fiber tension when being wound around, stress is crossed conference and is caused the operation irregularity even dismantling of engine of propellant, coordinate so that stress concentration point changes by core rod 1 and powder column star hole, changed to star tooth by powder column body, after extracting core rod out, stress discharges completely, the problem solving propellant operation irregularity.
Claims (1)
1. a band medicine reel stress release device, it is characterized in that by core rod (1), front baffle ring (2a), rear baffle ring (2b), front bayonet slot (3a), rear draw-in groove (3b), prelocalization ring (4a), rear locating ring (4b), larynx hoop (5) composition；Wherein prelocalization ring (4a) inserts in front bayonet slot (3a), and is placed in powder charge front end by larynx hoop (5) banding；After rear locating ring (4b) insertion, draw-in groove (3b) is also placed in powder charge rear end by the combination of larynx hoop (5) banding, and penetrated by core rod (1), core rod (1) rear and front end is by front baffle ring (2a,), rear baffle ring (2b) carry out spacing respectively, described core rod (1) outer mold surface is identical with profile in powder charge star hole, and core rod drives powder charge to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714328.XA CN104612856B (en) | 2014-11-28 | 2014-11-28 | A kind of band medicine reel stress release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714328.XA CN104612856B (en) | 2014-11-28 | 2014-11-28 | A kind of band medicine reel stress release device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104612856A CN104612856A (en) | 2015-05-13 |
| CN104612856B true CN104612856B (en) | 2016-07-06 |
Family
ID=53147466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410714328.XA Expired - Fee Related CN104612856B (en) | 2014-11-28 | 2014-11-28 | A kind of band medicine reel stress release device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104612856B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412658B (en) * | 2020-09-24 | 2022-03-04 | 上海新力动力设备研究所 | Combined core mold with medicine winding function |
| CN112571822B (en) * | 2020-10-29 | 2023-03-28 | 上海新力动力设备研究所 | Memory non-metal core mold structure suitable for winding with medicine and shell forming method |
| CN112432604B (en) * | 2020-10-30 | 2022-05-24 | 西安近代化学研究所 | Rotary dynamic strain testing system and method for winding and coating propellant grains |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3745199A (en) * | 1968-12-23 | 1973-07-10 | Us Army | Method of making an improved case-bonded end-burning propellant grain with restricted stress-relief ports |
| CN201908744U (en) * | 2011-01-28 | 2011-07-27 | 晋西工业集团有限责任公司 | Civil hail suppression and rainfall increment rocket engine |
| CN203499853U (en) * | 2013-07-19 | 2014-03-26 | 晋西工业集团有限责任公司 | Rocket propellant grain fixing device |
-
2014
- 2014-11-28 CN CN201410714328.XA patent/CN104612856B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3745199A (en) * | 1968-12-23 | 1973-07-10 | Us Army | Method of making an improved case-bonded end-burning propellant grain with restricted stress-relief ports |
| CN201908744U (en) * | 2011-01-28 | 2011-07-27 | 晋西工业集团有限责任公司 | Civil hail suppression and rainfall increment rocket engine |
| CN203499853U (en) * | 2013-07-19 | 2014-03-26 | 晋西工业集团有限责任公司 | Rocket propellant grain fixing device |
Non-Patent Citations (2)
| Title |
|---|
| 基于神经网络遗传算法的推进剂药柱应力释放槽优化设计;彭超等;《固体火箭技术》;20140430;第37卷(第2期);第198-203页 * |
| 应力释放装置对固体发动机药柱结构完整性的影响;顾志旭等;《固体火箭技术》;20140228;第37卷(第1期);第57-62页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104612856A (en) | 2015-05-13 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20191128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |