CN207470585U - pneumatic self-unlocking separation nut and spacecraft - Google Patents
pneumatic self-unlocking separation nut and spacecraft Download PDFInfo
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- CN207470585U CN207470585U CN201721430941.4U CN201721430941U CN207470585U CN 207470585 U CN207470585 U CN 207470585U CN 201721430941 U CN201721430941 U CN 201721430941U CN 207470585 U CN207470585 U CN 207470585U
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Abstract
The utility model provides a kind of pneumatic Self-unlocking separation nut and spacecraft, it is related to Environment Sciences technical field, the pneumatic Self-unlocking separation nuts such as carrier rocket separation, satellite and the rocket separation and includes gas generator, cylinder, shell, multiple points of valve nuts and multiple solution lock balls；The outer wall of cylinder is abutted with the inner wall of shell, and cylinder forms air cavity with shell；Gas generator is passed through gas into air cavity, so as to which cylinder be driven to be axially moved along the inner wall of shell；Multiple points of valve nuts, which abut to enclose successively, is set as annular；Each valve nut is divided to correspond at least one solution lock ball；One end of solution lock ball divides the outer wall of valve nut to abut with one of them, and the other end is abutted with the inner wall of cylinder；At least one annular groove for accommodating multiple solution lock balls is provided on the inner wall of cylinder.The problem of structure of the pneumatic Self-unlocking separation nut is simple, and the setting for solving lock ball can improve releasing process clamping stagnation enables separation nut quick release, improves working efficiency.
Description
Technical field
The utility model is related to Environment Sciences technical fields such as carrier rocket separation, satellite and the rocket separation, more particularly, to one kind
Pneumatic Self-unlocking separation nut and spacecraft.
Background technology
Separation nut is the connection tripper of a kind of axial connection, radially unlock, is widely used in spaceborne portion
Section connection and separation.The principle of separation nut predominantly divides a complete nut cutting to valve, will divide valve nut beam using cuff
Tightly, during separation, cuff is with dividing valve nut to relatively move, constraint relief, and valve nut stress opening is divided to reach unlock purpose.
At present, China's carrier rocket and satellite mainly connect separation nut tripper with separation nut with firer, this
Device can provide very big attachment force, while have many advantages, such as that explosion startup pressure is small, and separation impact is relatively small.
But the structure of separation nut of the prior art is more complicated and easy generation clamping stagnation the problem of can not unlocking.
Utility model content
The purpose of this utility model is to provide a kind of pneumatic Self-unlocking separation nut and spacecraft, to improve the prior art
Present in separation nut structure is more complicated and easy generation clamping stagnation the technical issues of can not unlocking.
A kind of pneumatic Self-unlocking separation nut provided by the utility model, including gas generator, cylinder, shell, multiple
Divide valve nut and multiple solution lock balls；Cylinder, multiple points of valve nuts and multiple solution lock balls are arranged at the inside of shell；Cylinder
Outer wall abutted with the inner wall of shell, and cylinder and shell form air cavity；Gas generator is passed through gas into air cavity, so as to band
Cylinder of taking offence is axially moved along the inner wall of shell；Multiple points of valve nuts, which abut to enclose successively, is set as annular；It is each divide valve nut correspond to
Few solution lock ball；One end of solution lock ball divides the outer wall of valve nut to abut with one of them, and the other end is abutted with the inner wall of cylinder；
At least one annular groove for accommodating multiple solution lock balls is provided on the inner wall of cylinder；When cylinder and multiple points of valve nuts produce
Raw relative motion, when multiple solution lock balls are entered in annular groove, multiple points of valve nuts separate.
Further, pneumatic Self-unlocking separation nut further includes stop collar；Limiting is set on the inside of shell, and limits
Set is fixedly connected with shell；Stop collar is set in the outside of multiple points of valve nuts, and stop collar and divides between valve nut and there is sky
Gap；Multiple through-holes for being used to accommodate multiple solution lock balls are provided on stop collar, multiple through-holes are corresponded with multiple solution lock balls.
Further, through-hole includes the first limit hole and the second limit hole；Circumferential direction of multiple first limit holes along stop collar
Direction is arranged at intervals successively, and multiple second limit holes are arranged at intervals successively along the circumferential direction of stop collar, and multiple first limitings
Hole is arranged at intervals with multiple second limit holes along the axial direction of stop collar.
Further, through-hole is rounded；The inner wall of through-hole is abutted with solving the outer wall of lock ball.
Further, pneumatic Self-unlocking separation nut further includes cut spring；Divide on the inner wall of valve nut and be provided with installation
Slot, when multiple points of valve nuts abut successively, multiple mounting grooves are sequentially connected annularly；Cut spring is arranged in mounting groove,
And cut spring edge divides the circumferential direction annular of valve nut to set.
Further, each divide on the outer wall of valve nut and be both provided with guide groove；The axial direction side of valve nut is divided on guide groove edge
To extension, the guide protrusions coordinated with guide groove are provided on the inner wall of stop collar.
Further, pneumatic Self-unlocking separation nut further includes supporting pad and lower supporting pad；Upper supporting pad and lower support
Pad is arranged at the inside of shell, and is fixedly connected with shell；The upper surface of upper supporting pad and the inner wall of cylinder enclose and are set as gas
Chamber；The lower surface of upper supporting pad is with dividing the upper surface of valve nut to abut；The upper surface of lower supporting pad and the lower face for dividing valve nut
It abuts.
Further, the lower face of upper supporting pad and the upper surface of lower supporting pad are set horizontal by angle.
Further, pneumatic Self-unlocking separation nut further includes suction nozzle；One end of suction nozzle is connected with gas generator,
The other end is connected with air cavity；Resetting spring is arranged on the outer wall of suction nozzle；One end of resetting spring and the inner roof wall of shell support
It connects, the other end is abutted with the upper surface of cylinder.
Further, the utility model also provides a kind of spacecraft, and spacecraft includes pneumatic Self-unlocking separation nut.
Pneumatic Self-unlocking separation nut provided by the utility model, a kind of pneumatic Self-unlocking separation spiral shell provided in this embodiment
Mother, in use, when multiple points of valve nuts abut successively enclose be set as annular when, solve the both ends of lock ball respectively with dividing valve nut
Outer wall and cylinder inner wall abut, to dividing valve nut one radial pressure, multiple points of valve nuts is enabled to abut successively always, keep
Annularity prevents from point valve nut and generates between the screw thread of connecting bolt to move radially, and realizes separation nut and to connecting bolt
It is fixedly connected；When needing unlock, gas generator is passed through gas into air cavity, so as to enable axial direction of the cylinder along the inner wall of shell
Direction moves upwards；When cylinder is with dividing the generation relative motion of valve nut, annular groove is in sustained height with solution lock ball, solves lock ball
It is rolled in annular groove, so as to discharge the restraining force to dividing valve nut, valve nut is divided to be completed with generating gap to connecting bolt
Unlock.
From the foregoing, it will be observed that the structure of pneumatic Self-unlocking separation nut provided by the utility model is simple, and solve the setting of lock ball
The problem of releasing process clamping stagnation can be improved, enables separation nut quick release, improves working efficiency.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of pneumatic Self-unlocking separation nut that the utility model embodiment provides；
Fig. 2 is the sectional view in A-A directions in Fig. 1；
Fig. 3 is the structure diagram of stop collar that the utility model embodiment provides；
The structure diagram that Fig. 4 is the stop collar that the utility model embodiment provides and valve nut is divided to coordinate；
Fig. 5 is the structure diagram for dividing valve nut that the utility model embodiment provides；
Fig. 6 is the structure diagram of cylinder that the utility model embodiment provides.
Icon：1- gas generators；2- cylinders；3- shells；4- divides valve nut；5- solves lock ball；6- air cavitys；7- annulars are recessed
Slot；8- stop collars；9- through-holes；10- cut springs；11- mounting grooves；12- guide grooves；13- guide protrusions；The upper supporting pads of 14-；
Supporting pad under 15-；16- suction nozzles；17- resetting springs；The first grooves of 18-；The second grooves of 19-；20- third grooves；91- first
Limit hole；The second limit holes of 92-.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected range.
In the description of the present invention, it should be noted that such as occur term " " center ", " on ", " under ", " left side ",
" right side ", " vertical ", " level ", " interior ", " outer " etc., indicated by orientation or position relationship be based on orientation shown in the drawings or
Position relationship is for only for ease of description the utility model and simplifies description rather than instruction or imply signified device or member
Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
In addition, such as there is term " first ", " second ", " third " are only used for description purpose, and it is not intended that instruction or implying opposite
Importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
Fig. 1 is the structure diagram of pneumatic Self-unlocking separation nut that the utility model embodiment provides；Fig. 2 is in Fig. 1
The sectional view in A-A directions；As depicted in figs. 1 and 2, pneumatic Self-unlocking separation nut provided in this embodiment occurs including gas
Device 1, cylinder 2, shell 3, multiple points of valve nuts 4 and multiple solution lock balls 5；Cylinder 2, multiple points of valve nuts 4 and multiple unlocks
Ball 5 is arranged at the inside of shell 3；The outer wall of cylinder 2 is abutted with the inner wall of shell 3, and cylinder 2 forms air cavity 6 with shell 3；
Gas generator 1 is passed through gas into air cavity 6, so as to which cylinder 2 be driven to be axially moved along the inner wall of shell 3；Multiple points of valve nuts 4
It abuts to enclose successively and is set as annular；It is each that valve nut 4 is divided to correspond at least one solution lock ball 5；Solve one end and one of them point of lock ball 5
The outer wall of valve nut 4 abuts, and the other end is abutted with the inner wall of cylinder 2；It is provided with to accommodate multiple unlocks on the inner wall of cylinder 2
At least one annular groove 7 of ball 5；When cylinder 2 and multiple points of valve nuts 4 generate relative motion, multiple solution lock balls 5 enter to ring
When in connected in star 7, multiple points of valve nuts 4 separate.
Wherein, divide on the inner wall of valve nut 4 and be provided with internal thread, annular is set as when multiple points of valve nuts 4 abut to enclose successively
When, internal thread is with docking bolt thread cooperation.
Further, solution lock ball 5 is with dividing the outer wall of valve nut 4 and the inner wall of cylinder 2 to work as annular groove for interference fit
7 with solution lock ball 5 when be in sustained height, and solving lock ball 5 can be in fast scroll to annular groove 7.
Further, when each point of valve nut 4 corresponds to a solution lock ball 5, only a ring need to be set on the inner wall of cylinder 2
Connected in star 7；When each point of valve nut 4 corresponds to multiple solution lock balls 5, multiple annular grooves 7 should be set on the inner wall of cylinder 2.
Further, divide on the outer wall of valve nut 4 and may be provided with guide rail, guide rail edge divides the axial direction of valve nut 4 to extend.
In use, when cylinder 2 and multiple points of valve nuts 4 generate relative motion, multiple solution lock balls 5 are moved along the rail and are entered to
In groove.The setting of guide rail can play guiding role to solution lock ball 5, and solution lock ball 5 is enabled to be rolled along guide rail direction, is entered as early as possible
In annular groove 7, clamping stagnation is not generated.
Pneumatic Self-unlocking separation nut provided in this embodiment, a kind of pneumatic Self-unlocking separation spiral shell provided in this embodiment
Mother, in use, when multiple points of valve nuts 4 abut successively enclose be set as annular when, solve lock ball 5 both ends respectively with dividing valve spiral shell
The outer wall of mother 4 and the inner wall of cylinder 2 abut, and to dividing valve nut 4 one radial pressure, multiple points of valve nuts 4 are enabled to support successively always
Connect, keep annularity, prevent from point valve nut 4 and generate between the screw thread of connecting bolt to move radially, realization separation nut with it is right
Connecting bolt is fixedly connected；When needing unlock, gas generator 1 is passed through gas into air cavity 6, so as to enable cylinder 2 along shell 3
The axial direction of inner wall move upwards；When cylinder 2 is with dividing the generation relative motion of valve nut 4, annular groove 7 is with solving at lock ball 5
In sustained height, solution lock ball 5 is rolled in annular groove 7, so as to discharge the restraining force to dividing valve nut 4, divide valve nut 4 with it is right
Connecting bolt generates gap, that is, completes unlock.
From the foregoing, it will be observed that the structure of pneumatic Self-unlocking separation nut provided in this embodiment is simple, and solve the setting energy of lock ball 5
The problem of enough improving releasing process clamping stagnation, separation nut quick release is enabled, improve working efficiency.
Fig. 3 is the structure diagram of stop collar that the utility model embodiment provides；As shown in Figures 2 and 3, in above-mentioned reality
On the basis of applying example, further, pneumatic Self-unlocking separation nut further includes stop collar 8；Stop collar 8 is arranged on the interior of shell 3
Portion, and stop collar 8 is fixedly connected with shell 3；Stop collar 8 is set in the outside of multiple points of valve nuts 4, and stop collar 8 is with dividing valve
There are gaps between nut 4；Be provided on stop collar 8 it is multiple for accommodate it is multiple solution lock balls 5 through-holes 9, multiple through-holes 9 with it is more
A solution lock ball 5 corresponds.
Wherein, stop collar 8 should set and circularize.
Further, stop collar 8 can be threadedly coupled with shell 3.
In the present embodiment, pneumatic Self-unlocking separation nut further includes stop collar 8.In use, solution lock ball 5 is threaded through
In through-hole 9, and the both ends of lock ball 5 are solved respectively with the outer wall of valve nut 4 and the inner wall of cylinder 2 is divided to abut.When cylinder 2 and divide valve
When nut 4 generates relative motion, solution lock ball 5 rolls in through-hole 9, when annular groove 7 is moved at through-hole 9, solution lock ball 5
Part is absorbed in into annular groove 7, so as to discharge the restraining force to dividing valve nut 4；Due to stop collar 8 and divide between valve nut 4
There are gaps, are moved after dividing 4 constraint relief power of valve nut towards close to the direction of stop collar 8, generate gap with bolt, that is, complete solution
Lock.The setting of stop collar 8 can play position-limiting action to solution lock ball 5, ensure that solution lock ball 5 will not generate partially during rolling
It moves, when annular groove 7 is moved at through-hole 9, solution lock ball 5 can be rapidly entered into annular groove 7.
As shown in figure 3, on the basis of above-described embodiment, further, through-hole 9 includes the first limit hole 91 and the second limit
Position hole 92；Multiple first limit holes 91 are arranged at intervals successively along the circumferential direction of stop collar 8, and multiple second limit holes 92 are along limiting
The circumferential direction of set 8 is arranged at intervals successively, and multiple first limit holes 91 and axial direction of multiple second limit holes 92 along stop collar 8
Direction is arranged at intervals.
Wherein, according to practical situations, through-hole 9 can also include multiple third limit holes, multiple 4th limit holes etc.
Multiple rows of limit hole.
In the present embodiment, through-hole 9 includes the first limit hole 91 and the second limit hole 92.In use, each first
The corresponding solution lock ball 5 of 91 and second limit hole 92 of limit hole, can increase in this way point valve nut 4 by solution lock ball 5
Restraining force, and be more uniformly stressed, so as to improve pneumatic Self-unlocking separation nut with docking bolted stability.
As shown in figures 1 and 3, on the basis of above-described embodiment, further, through-hole 9 is rounded；The inner wall of through-hole 9
It is abutted with the outer wall for solving lock ball 5.
Wherein, the size of through-hole 9 is matched with solving the size of lock ball 5.
In the present embodiment, through-hole 9 is rounded, can preferably play the role of limiting in this way, ensures that solution lock ball 5 quickly rolls
Dynamic not clamping stagnation.
The structure diagram that Fig. 4 is the stop collar that the utility model embodiment provides and valve nut is divided to coordinate；Such as Fig. 2 and figure
Shown in 4, on the basis of above-described embodiment, further, pneumatic Self-unlocking separation nut further includes cut spring 10；Divide valve spiral shell
Mounting groove 11 is provided on the inner wall of mother 4, when multiple points of valve nuts 4 abut successively, multiple mounting grooves 11 are sequentially connected in ring
Shape；Cut spring 10 is arranged in mounting groove 11, and cut spring 10 is along dividing the circumferential direction annular of valve nut 4 to set.
Wherein, multiple mounting grooves 11 are may be provided with along the axial direction for the inner wall for dividing valve nut 4, cut spring 10 can be
It is multiple.4 radial separation power of point valve nut can be further increased in this way.
In the present embodiment, pneumatic Self-unlocking separation nut further includes cut spring 10.In use, when dividing valve nut
During 4 unlock, cut spring 10 can increase the radial separation power of point valve nut 4, and multiple points of valve nuts 4 is enabled quickly to flick, so as to
Accelerate the speed detached with external screw-thread.
Fig. 5 is the structure diagram for dividing valve nut that the utility model embodiment provides；As shown in Fig. 3, Fig. 4 and Fig. 5,
On the basis of above-described embodiment, further, each divide on the outer wall of valve nut 4 and be both provided with guide groove 12；Guide groove 12
Along the axial direction of valve nut 4 is divided to extend, the guide protrusions 13 coordinated with guide groove 12 are provided on the inner wall of stop collar 8.
In the present embodiment, during valve nut 4 will be divided to be installed into stop collar 8, guide protrusions 13 are in guide groove 12
It slides, plays guiding role.In addition, in use, guide protrusions 13 and guide groove 12 can ensure that a point valve nut 4 does not produce
Raw rotation, plays the role of limiting.
Fig. 6 is the structure diagram of cylinder that the utility model embodiment provides；As shown in Figure 2 and Figure 6, in above-mentioned implementation
On the basis of example, further, pneumatic Self-unlocking separation nut further includes supporting pad 14 and lower supporting pad 15；Upper supporting pad 14
The inside of shell 3 is arranged at lower supporting pad 15, and is fixedly connected with shell 3；The upper surface of upper supporting pad 14 and cylinder 2
Inner wall enclose and be set as air cavity 6；The lower surface of upper supporting pad 14 is with dividing the upper surface of valve nut 4 to abut；The upper table of lower supporting pad 15
Face is with dividing the lower face of valve nut 4 to abut.
Wherein, lower supporting pad 15 can be bolted with shell 3.
Further, stop collar 8 can be by being fixedly connected, so as to solid with shell 3 with upper supporting pad 14 and lower supporting pad 15
Fixed connection.
Further, multiple the first grooves 18 for being used to place damped ring, damped ring energy are may be provided on the outer wall of cylinder 2
Enough play the role of vibration damping.
Further, the second groove 19 for placing sealing ring, sealing ring are may be provided on the outer wall of upper supporting pad 14
The gap between supporting pad 14 and cylinder 2 can be filled, prevents gas leak, ensures the air pressure in air cavity 6, sealing is played and makees
With.
In the present embodiment, pneumatic Self-unlocking separation nut further includes supporting pad 14 and lower supporting pad 15.Using process
In, upper supporting pad 14 and lower supporting pad 15 can limit a point moving range for valve nut 4, play the role of limiting.
As shown in Fig. 2, on the basis of above-described embodiment, further, the lower face of upper supporting pad 14 and lower supporting pad
15 upper surface is set horizontal by angle.
Wherein, the upper surface and lower face for dividing valve nut 4 should be upper with the lower face of upper supporting pad 14 and lower supporting pad 15
End face matches, and is set horizontal by angle.
Further, the shape of multiple points of valve nuts 4 is identical, can improve the interchangeability of device in this way.
In the present embodiment, the upper surface of the lower face of upper supporting pad 14 and lower supporting pad 15 is set horizontal by angle
It puts.In use, when valve nut 4 is divided to detach, cut spring 10 flicks, and divides lower end of the valve nut 4 along upper supporting pad 14
Face and the upper surface tilt slide of lower supporting pad 15 can prevent rotation and chatter, rushing when effectively reducing separation in this way
It hits, ensures reliability.
As shown in Figure 2 and Figure 6, on the basis of above-described embodiment, further, pneumatic Self-unlocking separation nut further includes
Suction nozzle 16；One end of suction nozzle 16 is connected with gas generator 1, and the other end is connected with air cavity 6；It is covered on the outer wall of suction nozzle 16
Equipped with resetting spring 17；One end of resetting spring 17 is abutted with the inner roof wall of shell 3, and the other end is abutted with the upper surface of cylinder 2.
Wherein, suction nozzle 16 can be fixedly connected, such as be threadedly coupled with shell 3.It can prevent from using process in this way
Middle suction nozzle 16 generates offset.
Further, the third groove 20 for placing sealing ring is may be provided at the abutting of cylinder 2 and suction nozzle 16, it is close
Seal can fill the gap between supporting pad 14 and cylinder 2, prevent gas leak, ensure the air pressure in air cavity 6, play close
Envelope acts on.
In the present embodiment, in use, when aerodynamic force releases, the elastic force pusher cylinder 2 of resetting spring 17 is downward
Mobile, one end of the solution lock ball 5 in annular groove 7 is abutted with the inner wall of cylinder 2, the other end with the outer wall of valve nut 4 is divided to abut,
Multiple points of valve nuts 4 is enabled to close up again, the reuse of realization device.
On the basis of above-described embodiment, further, the utility model embodiment also provides a kind of spacecraft, spacecraft
Including pneumatic Self-unlocking separation nut.
Wherein, spacecraft includes outer connecting bolt.Outer connecting bolt is with dividing valve nut 4 to be threadedly coupled.
In the present embodiment, spacecraft has and above-mentioned pneumatic Self-unlocking separation nut, and the effect generated is with pneumatically self solving
The effect for locking separation nut is identical, repeats no more.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of pneumatic Self-unlocking separation nut, which is characterized in that including：Gas generator, cylinder, shell, multiple points of valve spiral shells
Female and multiple solution lock balls；
The cylinder multiple described divides valve nut and multiple solution lock balls to be arranged at the inside of the shell；The gas
The outer wall of cylinder is abutted with the inner wall of the shell, and the cylinder forms air cavity with the shell；The gas generator is to institute
It states and gas is passed through in air cavity, so as to which the cylinder be driven to be axially moved along the inner wall of the shell；
It is multiple described valve nut to be divided to abut to enclose successively and be set as annular；Valve nut is divided to correspond at least one unlock described in each
Ball；With the outer wall of valve nut is divided to abut described in one of them, the inner wall of the other end and the cylinder supports for one end of the solution lock ball
It connects；
At least one annular groove for accommodating multiple solution lock balls is provided on the inner wall of the cylinder；When the cylinder
With it is multiple it is described valve nut is divided to generate relative motion, multiple solution lock balls are multiple described when entering in the annular groove
Valve nut is divided to separate.
2. pneumatic Self-unlocking separation nut according to claim 1, which is characterized in that further include stop collar；
It is described to limit the inside for being set on the shell, and the stop collar is fixedly connected with the shell；The stop collar
It is set in multiple outsides for dividing valve nut, and the stop collar and described divides between valve nut that there are gaps；The limiting
It puts on and is provided with multiple through-holes for being used to accommodate multiple solution lock balls, multiple through-holes and multiple solution lock balls are right one by one
It should.
3. pneumatic Self-unlocking separation nut according to claim 2, which is characterized in that the through-hole includes the first limit hole
With the second limit hole；
Multiple first limit holes are arranged at intervals successively along the circumferential direction of the stop collar, multiple second limit hole edges
The circumferential direction of the stop collar is arranged at intervals successively, and multiple first limit holes and multiple second limit holes are along institute
The axial direction for stating stop collar is arranged at intervals.
4. pneumatic Self-unlocking separation nut according to claim 3, which is characterized in that the through-hole is rounded；
The inner wall of the through-hole is abutted with the outer wall of the solution lock ball.
5. pneumatic Self-unlocking separation nut according to claim 1, which is characterized in that further include cut spring；
Be provided with mounting groove on the inner wall of described point of valve nut, when it is multiple it is described valve nut is divided to abut successively when, multiple peaces
Tankage is sequentially connected annularly；The cut spring is arranged in the mounting groove, and the cut spring divides valve spiral shell described in
Female circumferential direction annular setting.
6. pneumatic Self-unlocking separation nut according to claim 2, which is characterized in that each outer wall for dividing valve nut
On be both provided with guide groove；
The guide groove divides the axial direction of valve nut to extend described in, is provided on the inner wall of the stop collar and the guiding
The guide protrusions of slot cooperation.
7. pneumatic Self-unlocking separation nut according to claim 5, which is characterized in that further include supporting pad and lower support
Pad；
The upper supporting pad and the lower supporting pad are arranged at the inside of the shell, and are fixedly connected with the shell；
The upper surface of the upper supporting pad is enclosed with the inner wall of the cylinder is set as the air cavity；The lower surface of the upper supporting pad with it is described
The upper surface of valve nut is divided to abut；The upper surface of the lower supporting pad is abutted with the lower face for dividing valve nut.
8. pneumatic Self-unlocking separation nut according to claim 7, which is characterized in that the lower face of the upper supporting pad and
The upper surface of the lower supporting pad is set horizontal by angle.
9. pneumatic Self-unlocking separation nut according to claim 2, which is characterized in that further include suction nozzle；
One end of the suction nozzle is connected with the gas generator, and the other end is connected with the air cavity；
Resetting spring is arranged on the outer wall of the suction nozzle；One end of the resetting spring and the inner roof wall of the shell support
It connects, the other end is abutted with the upper surface of the cylinder.
10. a kind of spacecraft, which is characterized in that including the pneumatic Self-unlocking separation nut of such as claim 1-9 any one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721430941.4U CN207470585U (en) | 2017-10-31 | 2017-10-31 | pneumatic self-unlocking separation nut and spacecraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721430941.4U CN207470585U (en) | 2017-10-31 | 2017-10-31 | pneumatic self-unlocking separation nut and spacecraft |
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| Publication Number | Publication Date |
|---|---|
| CN207470585U true CN207470585U (en) | 2018-06-08 |
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| CN201721430941.4U Active CN207470585U (en) | 2017-10-31 | 2017-10-31 | pneumatic self-unlocking separation nut and spacecraft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642536A (en) * | 2017-10-31 | 2018-01-30 | 魏春慧 | pneumatic self-unlocking separation nut and spacecraft |
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2017
- 2017-10-31 CN CN201721430941.4U patent/CN207470585U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642536A (en) * | 2017-10-31 | 2018-01-30 | 魏春慧 | pneumatic self-unlocking separation nut and spacecraft |
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