CN209125882U - A kind of gunpowder makees movable barrel type wedge shape knife wire rope cutter - Google Patents
A kind of gunpowder makees movable barrel type wedge shape knife wire rope cutter Download PDFInfo
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- CN209125882U CN209125882U CN201821465733.2U CN201821465733U CN209125882U CN 209125882 U CN209125882 U CN 209125882U CN 201821465733 U CN201821465733 U CN 201821465733U CN 209125882 U CN209125882 U CN 209125882U
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- cutter
- wedge
- wire rope
- shell
- gunpowder
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Abstract
The utility model provides a kind of gunpowder and makees movable barrel type wedge shape knife wire rope cutter, including shell, drive end bearing bracket, wedge-shaped twine cutter, locking device, pedestal and electric squib；Shell is equipped with lacing hole, and wedge-shaped twine cutter is fixed on housing central section by locking device and is located at below lacing hole；Drive end bearing bracket is fixed on shell upper end and is located above lacing hole, and drive end bearing bracket lower surface is the plane cooperated with wedge-shaped twine cutter；Electric squib is fixed on housing bottom by pedestal；Wedge-shaped twine cutter lower end surface, electric squib upper surface and inner walls surround composition closed cavity；After igniting, shell cavity pressure increases to certain value, and locking device unlock pushes wedge-shaped twine cutter mobile, and rope between the two is cut off in blade and the cooperation of drive end bearing bracket lower surface.The utility model solves the problems, such as that endless knife wire rope cutter is wired, rope cannot be smoothly detached, and improves the reliability for cutting rope.
Description
Technical field
The utility model relates to priming system technical fields, and in particular to a kind of gunpowder makees movable barrel type wedge shape knife wire rope cutter.
Background technique
In priming system field, firer's wire rope cutter is a kind of important priming system, it is widely used in rocket recovery system, landing
The fields such as umbrella are mainly used for cutting off rope.Current firer's wire rope cutter uses the form of endless knife, using in cutter and wire rope cutter
Rope is cut off in the cooperation of wall.Although the wire rope cutter can be realized the function of cutting rope, but due to the fit clearance of cutter and wire rope cutter
There is a problem of wired so that cutting rope, i.e., is clamped, cannot be separated by cutter and wire rope cutter inner wall after rope cutting, therefore, it is necessary to
A kind of wire rope cutter is designed, solves the problems, such as that wire rope cutter is wired, reliability is not high.
Utility model content
In view of this, the present invention provides a kind of gunpowder to make movable barrel type wedge shape knife wire rope cutter, efficiently solves annular
The problem of knife wire rope cutter is wired, rope cannot be smoothly detached, improves the reliability for cutting rope.
Specific embodiment of the present utility model is as follows:
A kind of gunpowder makees movable barrel type wedge shape knife wire rope cutter, including shell, drive end bearing bracket, wedge-shaped twine cutter, locking device, pedestal
And electric squib；
The shell is equipped with lacing hole, and wedge-shaped twine cutter is fixed on housing central section by locking device and is located at lacing hole
Lower section；The drive end bearing bracket is fixed on shell upper end and is located above lacing hole, and drive end bearing bracket lower surface is to cooperate with wedge-shaped twine cutter
Plane；Electric squib is fixed on housing bottom by pedestal；In wedge-shaped twine cutter lower end surface, electric squib upper surface and shell
Wall surrounds composition closed cavity；
After igniting, shell cavity pressure increases to certain value, and locking device unlock pushes wedge-shaped twine cutter mobile, blade
Rope between the two is cut off with the cooperation of drive end bearing bracket lower surface.
Further, the wedge-shaped twine cutter knife edge angular is 55 °~65 °.
Further, the wedge-shaped twine cutter lower end is equipped with annular groove, for assembling O-ring I.
Further, O-ring II is provided between the electric squib and shell.
Further, the locking device uses shear pin, through-hole is equipped with below the blade of wedge-shaped twine cutter, for installing
Shear pin, pressure increase to certain value, and shear pin is cut.
The utility model has the advantages that
1, the utility model cuts off rope between the two using the cooperation of wedge-shaped twine cutter blade and drive end bearing bracket lower surface,
It solves the problems, such as that endless knife wire rope cutter is wired, rope cannot be smoothly detached, improves the reliability for cutting rope.
2, the angle of the utility model wedge shape twine cutter blade is not only to have guaranteed to cut off rope but also the excellent of wired phenomenon does not occur
Choosing value can be wired due to turned generation if angle too small, if angle is excessive, knife is blunt to be not easy to cut off rope.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is that wire rope cutter cuts schematic diagram before rope；
Fig. 3 is that wire rope cutter cuts schematic diagram after rope.
Wherein, 1- drive end bearing bracket, 2- shell, 3- shear pin, 4- wedge shape twine cutter, 5-O shape circle I, 6- electric squib, 7-O shape
Enclose II, 8- pedestal.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
The utility model provides a kind of gunpowder and makees movable barrel type wedge shape knife wire rope cutter, as shown in Figure 1, including drive end bearing bracket 1, shell
Body 2, shear pin 3, wedge-shaped twine cutter 4, O-ring I 5, electric squib 6, O-ring II 7 and pedestal 8.
Annular groove is arranged at wedge-shaped 4 lower part of twine cutter, and for the assembly of O-ring I, top is the blade of wedge shape, and knife edge angular is
55 °~65 °, there is a circular through-hole in blade lower section, for installing shear pin 3.
Gas generant composition in accordance is housed inside electric squib 6, when ignition tube 6 passes through sufficiently large electric current, gas generant composition in accordance can be lighted,
Moment generates high-pressure gas, increases 2 internal pressure of shell.
Shell 2 is equipped with lacing hole, and the rope of required cutting is passed through in the lacing hole.Lacing hole is fixedly arranged above drive end bearing bracket
1,1 lower surface of drive end bearing bracket is plane, is connect by screw thread with 2 upper end of shell, O-ring I 5 is installed on the groove of wedge-shaped twine cutter 4
It is interior, play sealing function；Wedge-shaped twine cutter 4 is fixed with below lacing hole, wedge-shaped twine cutter 4 is fixed on shell 2 by shear pin 3
It is internal.
Electric squib 6 is fixed on pedestal 8, and pedestal 8 is connect with 2 lower thread of shell, using O-ring II 7 by electric firing
Pipe 6 clamps, and is fixed in shell 2.Wedge-shaped 4 lower end surface of twine cutter, 6 upper surface of electric squib and 2 inner wall of shell surround composition envelope
Close cavity.
When electric squib 6 when a certain size electric current by being triggered, internal gas generant composition in accordance is lighted, a large amount of combustion gas are generated, by
In O-ring I 5 and the sealing function of O-ring II 7, increase 2 internal cavities pressure moment of shell, when wedge-shaped twine cutter 4 is pressurized
When power is greater than the maximum shear stress that shear pin 3 can bear, shear pin 3 is cut, and wedge-shaped twine cutter 4 moves upwards, such as Fig. 2 institute
Show, the rope that blade passes through shell 2 is extruded in the plane below drive end bearing bracket 1, due to wedge-shaped 4 blade of twine cutter more cutting edge of a knife or a sword
Benefit, while pressure is very big, can property cut rope, as shown in Figure 3.Simultaneously as using the structure of wedge-shaped working edge, Bu Huizao
At blade and the wired phenomenon of 2 inner wall of shell, it is smoothly detached after rope cutting.
In conclusion the above is only the preferred embodiments of the present utility model only, it is not intended to limit the utility model
Protection scope.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all wrap
Containing being within the protection scope of the utility model.
Claims (5)
1. a kind of gunpowder makees movable barrel type wedge shape knife wire rope cutter, which is characterized in that including shell, drive end bearing bracket, wedge-shaped twine cutter, locking
Device, pedestal and electric squib；
The shell is equipped with lacing hole, and wedge-shaped twine cutter is fixed on housing central section by locking device and is located under lacing hole
Side；The drive end bearing bracket is fixed on shell upper end and is located above lacing hole, and drive end bearing bracket lower surface is to cooperate with wedge-shaped twine cutter
Plane；Electric squib is fixed on housing bottom by pedestal；Wedge-shaped twine cutter lower end surface, electric squib upper surface and inner walls
Surround composition closed cavity；
After igniting, shell cavity pressure increases to certain value, and locking device unlock pushes wedge-shaped twine cutter mobile, and blade is with before
Rope between the two is cut off in the cooperation of end cap lower surface.
2. gunpowder as described in claim 1 makees movable barrel type wedge shape knife wire rope cutter, which is characterized in that the wedge shape twine cutter blade
Angle is 55 °~65 °.
3. gunpowder as described in claim 1 makees movable barrel type wedge shape knife wire rope cutter, which is characterized in that the wedge shape twine cutter lower end
Equipped with annular groove, for assembling O-ring I.
4. gunpowder as described in claim 1 makees movable barrel type wedge shape knife wire rope cutter, which is characterized in that the electric squib and shell
Between be provided with O-ring II.
5. gunpowder as described in claim 1 makees movable barrel type wedge shape knife wire rope cutter, which is characterized in that the locking device is used and cut
Pin is cut, is equipped with through-hole below the blade of wedge-shaped twine cutter, for installing shear pin, pressure increases to certain value, and shear pin is cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821465733.2U CN209125882U (en) | 2018-09-07 | 2018-09-07 | A kind of gunpowder makees movable barrel type wedge shape knife wire rope cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821465733.2U CN209125882U (en) | 2018-09-07 | 2018-09-07 | A kind of gunpowder makees movable barrel type wedge shape knife wire rope cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209125882U true CN209125882U (en) | 2019-07-19 |
Family
ID=67228746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821465733.2U Active CN209125882U (en) | 2018-09-07 | 2018-09-07 | A kind of gunpowder makees movable barrel type wedge shape knife wire rope cutter |
Country Status (1)
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| CN (1) | CN209125882U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482533A (en) * | 2020-03-10 | 2020-08-04 | 西安近代化学研究所 | Split type cable separation device for secondary detonating device |
| CN113983864A (en) * | 2021-09-30 | 2022-01-28 | 北京空间机电研究所 | High-efficient firer device of integration is cut to bullet |
| CN114029584A (en) * | 2021-11-27 | 2022-02-11 | 西安北方庆华机电有限公司 | Spacing cutterbar |
-
2018
- 2018-09-07 CN CN201821465733.2U patent/CN209125882U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482533A (en) * | 2020-03-10 | 2020-08-04 | 西安近代化学研究所 | Split type cable separation device for secondary detonating device |
| CN113983864A (en) * | 2021-09-30 | 2022-01-28 | 北京空间机电研究所 | High-efficient firer device of integration is cut to bullet |
| CN113983864B (en) * | 2021-09-30 | 2023-08-29 | 北京空间机电研究所 | Bullet is cut high-efficient fire frock of integration |
| CN114029584A (en) * | 2021-11-27 | 2022-02-11 | 西安北方庆华机电有限公司 | Spacing cutterbar |
| CN114029584B (en) * | 2021-11-27 | 2023-01-13 | 西安北方庆华机电有限公司 | Spacing cutterbar |
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