CN104329983B - A kind of Composite Double cartridge type flow passage structure being applicable to Fire load - Google Patents
A kind of Composite Double cartridge type flow passage structure being applicable to Fire load Download PDFInfo
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- CN104329983B CN104329983B CN201410476268.2A CN201410476268A CN104329983B CN 104329983 B CN104329983 B CN 104329983B CN 201410476268 A CN201410476268 A CN 201410476268A CN 104329983 B CN104329983 B CN 104329983B
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Abstract
The invention provides a kind of Composite Double cartridge type flow passage structure being applicable to Fire load, comprise inner barrel and outer cylinder body; The cylindrical structural that inner barrel is logical in being, the external diameter at inner barrel two ends is larger than the external diameter of mid portion; Be processed with multiple category-A runner hole in one end of inner barrel mid portion, barrel is run through in described category-A runner hole; Multiple category-B runner hole is processed with in one end that inner barrel is relative with category-A runner hole, described category-B runner hole is the U-shaped structure be made up of circular hole and local concave surface, wherein circular hole runs through barrel, the width of local concave surface equals the diameter of described circular hole, and the face of cylinder of local concave surface and inner barrel mid portion is tangent; The cylindrical structural that described outer cylinder body is logical in being, is provided with shoulder hole inside its one end; Inner barrel is positioned at outer cylinder body, and the step surface of the inner barrel end face and shoulder hole that are provided with one end, category-B runner hole is close to, and inner barrel welds with the bevel for welding on outer cylinder body and is connected.Flow passage structure process for machining and manufacturing of the present invention is simple, and reliability is high.
Description
Technical field
The present invention relates to a kind of Composite Double cartridge type flow passage structure being applicable to Fire load, belong to pyrotechnics technique field.
Background technology
According to the principle of Fire load, high temperature and high pressure gas during Fire load work needs to carry out work by the runner in its inside, generally speaking, the runner processing more complicated of Fire load, especially the runner processing of small size Fire load is just more difficult, and this point also limit the development of Fire load miniaturization.
Summary of the invention
In view of this, the object of the invention is the problem for Fire load runner design processing difficulties, propose a kind of Composite Double cartridge type flow passage structure being applicable to Fire load.
Realize technical scheme of the present invention as follows:
Be applicable to a Composite Double cartridge type flow passage structure for Fire load, comprise inner barrel and outer cylinder body; Wherein
The cylindrical structural that described inner barrel is logical in being, the external diameter at inner barrel two ends is larger than the external diameter of mid portion; Be processed with multiple category-A runner hole in one end of inner barrel mid portion, barrel is run through in described category-A runner hole; Multiple category-B runner hole is processed with in one end that inner barrel is relative with category-A runner hole, described category-B runner hole is the U-shaped structure be made up of circular hole and local concave surface, wherein circular hole runs through barrel, the width of local concave surface equals the diameter of described circular hole, and the face of cylinder of local concave surface and inner barrel mid portion is tangent; The other end of described inner barrel is processed with bevel for welding;
The cylindrical structural that described outer cylinder body is logical in being, be provided with shoulder hole inside its one end, the other end is processed with bevel for welding, and the internal diameter of outer cylinder body is greater than the external diameter of inner barrel mid portion;
Described inner barrel is positioned at outer cylinder body, and the step surface of the inner barrel end face and shoulder hole that are provided with one end, category-B runner hole is close to, and inner barrel welds with the bevel for welding on outer cylinder body and is connected.
Further, annular groove is provided with near bevel for welding place outside inner barrel one end of the present invention.
Beneficial effect
The present invention is less than the internal diameter of outer cylinder body due to the external diameter of inner barrel mid portion, therefore after inside and outside cylindrical shell is installed, annular gap is formed, simultaneously because the face of cylinder of the local concave surface on category-B runner hole and inner core mid portion is tangent, make the runner forming circulation mutually between category-B runner hole, annular gap and category-A runner hole; Structure of the present invention is simple, compact, not only reduce spatial volume, increase the gas flow area (annular gap) during Fire load work simultaneously, and profile rule, process for machining and manufacturing is simple, reliability is high, solves the difficult point of Fire load inner flow passage Design and manufacture processing, simultaneously also for the miniaturization of actuator provides an effective and feasible method.
Meanwhile, double-barrel structure runner of the present invention only comprises inside and outside cylinder, and its part is few easy to assembly, and low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of combined type double-barrel structure;
Fig. 2 is the schematic diagram of inner barrel structure;
Fig. 3 is the 3 dimensional drawing of inner barrel and the structural representation of circular hole B;
Fig. 4 is the structural representation of outer cylinder body.
Wherein: 1 outer cylinder body, 2 inner barrels, 3 runners.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
A kind of Composite Double cartridge type flow passage structure being applicable to Fire load of the present invention, as shown in Figure 1, comprises inner barrel and outer cylinder body; Wherein
As Figure 2-3, the cylindrical structural that described inner barrel is logical in being, the external diameter at inner barrel two ends is larger than the external diameter of mid portion; Be processed with multiple category-A runner hole in one end of inner barrel mid portion, barrel is run through in described category-A runner hole; Multiple category-B runner hole is processed with in one end that inner barrel is relative with category-A runner hole; Namely described category-A runner hole is positioned on inner barrel mid portion, and category-B runner hole is not positioned on inner barrel mid portion, but is positioned on inner barrel one end; Described category-B runner hole is the U-shaped structure be made up of circular hole and local concave surface, wherein circular hole runs through barrel, the width b of local concave surface equals the diameter of circular hole, the face of cylinder of local concave surface and inner barrel mid portion is tangent, and namely height H equals the half of the difference of two ends cylinder external diameter and mid portion cylinder external diameter; The other end of described inner barrel is processed with bevel for welding.
As shown in Figure 4, the cylindrical structural that described outer cylinder body is logical in being, shoulder hole is provided with inside its one end, the other end is processed with bevel for welding, and the internal diameter of outer cylinder body is greater than the external diameter of inner barrel mid portion, the internal diameter of outer cylinder body is close with the external diameter at inner barrel two ends simultaneously, and when inner barrel can be made like this to be assembled in outer cylinder body, inner barrel two ends and outer cylinder body are fitted.
Described inner barrel is positioned at outer cylinder body, and the step surface M of the inner barrel end face and shoulder hole that are provided with one end, category-B runner hole is close to, and inner barrel welds with the bevel for welding on outer cylinder body and is connected.
Meanwhile, outside inner barrel one end, be provided with annular groove near bevel for welding place, the quality of weld seam can be improved like this.
The structure that inner barrel and outer cylinder body are installed illustrates: the B nose end of inner barrel loads from the big opening end of outer cylinder body, the step surface M of the shoulder hole of the left end face of inner barrel (orientation see Fig. 2) and outer cylinder body is adjacent to, diameter due to the central cylindrical portion of inner barrel is less than the diameter of two end portions cylinder, so define the gap of annular after assembling, this structure as shown in Figure 1, in, after outer cylinder body installation, on the right side of it, (Fig. 1 is shown in orientation) defines the groove of argon arc protection welding, internally, outer cylinder body welds at bevel for welding place, finally obtain a kind of combined type double-barrel structure of this Fire load.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. be applicable to a Composite Double cartridge type flow passage structure for Fire load, comprise inner barrel and outer cylinder body; It is characterized in that,
The cylindrical structural that described inner barrel is logical in being, the external diameter at inner barrel two ends is larger than the external diameter of mid portion; Be processed with multiple category-A runner hole in one end of inner barrel mid portion, barrel is run through in described category-A runner hole; Multiple category-B runner hole is processed with in one end that inner barrel is relative with category-A runner hole, described category-B runner hole is the U-shaped structure be made up of circular hole and local concave surface, wherein circular hole runs through barrel, the width of local concave surface equals the diameter of described circular hole, and the face of cylinder of local concave surface and inner barrel mid portion is tangent; One end that described inner barrel is provided with category-A runner hole is processed with bevel for welding;
The cylindrical structural that described outer cylinder body is logical in being, be provided with shoulder hole inside its one end, the other end is processed with bevel for welding, and the internal diameter of outer cylinder body is greater than the external diameter of inner barrel mid portion;
Described inner barrel is positioned at outer cylinder body, and the step surface of the inner barrel end face and shoulder hole that are provided with one end, category-B runner hole is close to, and inner barrel welds with the bevel for welding on outer cylinder body and is connected.
2. be applicable to the Composite Double cartridge type flow passage structure of Fire load according to claim 1, it is characterized in that, outside described inner barrel one end, be provided with annular groove near bevel for welding place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410476268.2A CN104329983B (en) | 2014-09-18 | 2014-09-18 | A kind of Composite Double cartridge type flow passage structure being applicable to Fire load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410476268.2A CN104329983B (en) | 2014-09-18 | 2014-09-18 | A kind of Composite Double cartridge type flow passage structure being applicable to Fire load |
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| Publication Number | Publication Date |
|---|---|
| CN104329983A CN104329983A (en) | 2015-02-04 |
| CN104329983B true CN104329983B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410476268.2A Active CN104329983B (en) | 2014-09-18 | 2014-09-18 | A kind of Composite Double cartridge type flow passage structure being applicable to Fire load |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB723954A (en) * | 1952-11-19 | 1955-02-16 | Dunlop Rubber Co | Cocking mechanisms for automatic guns |
| CN103673794A (en) * | 2013-10-09 | 2014-03-26 | 北京理工大学 | Explosive driven piston type micro actuator |
-
2014
- 2014-09-18 CN CN201410476268.2A patent/CN104329983B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB723954A (en) * | 1952-11-19 | 1955-02-16 | Dunlop Rubber Co | Cocking mechanisms for automatic guns |
| CN103673794A (en) * | 2013-10-09 | 2014-03-26 | 北京理工大学 | Explosive driven piston type micro actuator |
Non-Patent Citations (3)
| Title |
|---|
| 一种新型液体阻尼式火工作动机构的阻尼特性分析;王雪松等;《液压与气动》;20080131(第1期);第36-38页 * |
| 火工品制造工艺的发展;胡照;《硅谷》;20100331(第6期);第127页 * |
| 爆燃压力脉冲对火工作动筒结构强度的影响;杜永刚等;《强度与环境》;20120229;第39卷(第1期);第45-48页 * |
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| CN104329983A (en) | 2015-02-04 |
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