CN109292070B - Nacelle connection and separation device and aerostat - Google Patents
Nacelle connection and separation device and aerostat Download PDFInfo
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- CN109292070B CN109292070B CN201811477412.9A CN201811477412A CN109292070B CN 109292070 B CN109292070 B CN 109292070B CN 201811477412 A CN201811477412 A CN 201811477412A CN 109292070 B CN109292070 B CN 109292070B
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- ball
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- piston head
- nacelle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64B—LIGHTER-THAN AIR AIRCRAFT
- B64B1/00—Lighter-than-air aircraft
- B64B1/06—Rigid airships; Semi-rigid airships
- B64B1/22—Arrangement of cabins or gondolas
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- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
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Abstract
The invention discloses a nacelle connecting and separating device, which comprises an upper connector and a lower connector, wherein the upper connector comprises an upper seat body, a central blind hole and a ball limiting groove; the lower connector comprises a lower seat body, a central through hole, a pin hole and a safety pin penetrating through the pin hole, wherein a plurality of ball bowls are arranged around the outer wall of the protruding part on the lower seat body at intervals, and the ball bowls are communicated with the central through hole; the convex part on the lower seat body is inserted into the central blind hole, the ball limiting groove and the ball bowl are correspondingly sealed to form a plurality of complete and independent ball limiting spaces, and balls are arranged in each ball limiting space; a piston head with a hollow cavity is arranged in the central through hole and above the safety pin, and an electric control explosive is fixedly arranged at the top of the central blind hole; the size of the intersecting part of the ball bowl and the central through hole is larger than the diameter of the ball; the outer wall of the piston head seals the intersecting part of the ball bowl and the central through hole, and the outer wall of the piston head is abutted with the ball. The device has the advantages of reliable connection, good rotation performance and quick and reliable separation.
Description
Technical Field
The invention belongs to the field of lighter-than-air aircrafts, and particularly relates to a nacelle connecting and separating device and an aerostat.
Background
With the progress and development of space science and technology, the high-altitude balloon has the special advantages of high flying height (20 km-40 km), relatively low cost, short preparation period, easy flexible implementation and the like, and becomes a main high-altitude carrier for observing the earth and the high-altitude atmosphere and researching scientific experiments. In general, the high-altitude balloon is carried on a test pod by means of a set of connecting and separating device to carry out a flight test, after the test task is completed, the connecting and separating device separates the high-altitude balloon body from the pod, the balloon body is released, and the pod safely drops to a preset landing point under the support of a recovery parachute to be recovered so as to acquire test data. Therefore, the high-altitude balloon flight test requires that the nacelle connection and disconnection device be reliably connected and quickly disconnected during the operation process.
The high altitude balloon and pod are typically connected and disconnected by a combination of rotating slingers and cable cutters. As shown in fig. 1, the nacelle 4 is connected to the sphere 1 by means of a parachute remover 5, a recovery parachute 3, a swivel hoist 6 and a rope 7, wherein one or two rope cutters 2 are connected in series to the rope 7 connecting the swivel hoist 6 and the sphere 1. The rotary hanging ring 6 is also used for isolating the rotary motion of the ball body 1 and the nacelle 4 in the flying process, so as to prevent the recovery parachute 3 from winding; when the nacelle 4 is separated from the sphere 1, the rope 7 is cut off by the rope cutter 2 in a remote control or timing control mode, so that the rotary hanging ring 6 is separated from the sphere 1, and the parachute 3 is recovered, and then the nacelle 4 is carried to land on the ground. The connecting and separating device formed by combining the rotary hanging ring and the cable cutter has the following defects:
1. the number of structural parts is large, so that the reliability of connection and disconnection is reduced.
2. The rotating lifting ring has a higher rotation friction coefficient, in the process of high-altitude balloon stagnation, the relative motion of the nacelle and the ball body cannot be isolated, the nacelle can rotate faster due to the rotation of the balloon, the recovered parachute is wound, the parachute cannot be normally opened in the nacelle recovery process, and the nacelle damage phenomenon occurs.
Disclosure of Invention
The invention aims to provide a nacelle connecting and separating device with integrated structure and function, so as to realize reliable connection, isolation of relative movement and rapid separation between a high-altitude balloon body and a nacelle.
The technical scheme for solving the problems is as follows: the nacelle connecting and separating device comprises an upper connector and a lower connector, wherein the upper connector comprises an upper seat body, a central blind hole upwards formed in the bottom of the upper seat body and a ball limiting groove formed around the inner wall of the central blind hole;
the lower connector comprises a lower base body with a convex longitudinal section, a central through hole formed in the lower base body, a through pin hole formed in the lower base body perpendicular to the central axis of the lower base body, a safety pin penetrating through the pin hole, a plurality of ball bowls arranged at intervals around the outer wall of the convex part on the lower base body, and the ball bowls are communicated with the central through hole;
the convex part on the lower seat body is inserted into the central blind hole, the ball limiting grooves and the ball bowls are correspondingly sealed to form a plurality of complete and independent ball limiting spaces, and balls are arranged in each ball limiting space and are in clearance fit with the ball limiting grooves and the ball bowls;
a piston head with a hollow cavity is arranged in the central through hole and above the safety pin, an electric control explosive is fixedly arranged at the top of the central blind hole, and the electric control explosive is positioned in the hollow cavity of the piston head;
the size of the intersecting part of the ball bowl and the central through hole is larger than the diameter of the ball; the outer wall of the piston head seals the intersecting part of the ball bowl and the central through hole, and the outer wall of the piston head is abutted with the ball.
In the scheme, the piston head is positioned at the locking position to prevent the balls from falling out, and the upper connector and the lower connector are reliably connected through the cooperation of the balls, the ball limiting grooves and the ball bowls. Meanwhile, the ball has good rotation performance, so that the nacelle cannot be caused to follow up when the ball rotates, and relative movement is well isolated.
When the ball body is required to be separated from the nacelle, the detonation is controlled, the generated high-pressure gas pushes the piston head to shear the safety pin and separate from the locking position, the ball falls off from the ball bowl, the protruding part of the lower connector falls off from the central blind hole of the upper connector, and the device is released from combination, so that quick separation is realized.
Preferably, the aperture of the intersection of the ball bowl and the central through hole is larger than the aperture of the hole on the side of the ball bowl facing the ball limiting groove.
To facilitate shearing of the shear pin, the end of the piston head facing the shear pin is tapered or hemispherical.
Preferably, the electric control type explosive is a miniature electric detonator.
Furthermore, the upper connector and the lower connector are respectively provided with a shackle device which can be connected with external equipment.
Meanwhile, the invention also provides an aerostat, which comprises a sphere, a rope connected with the sphere, a recovery parachute and a nacelle, wherein the nacelle is connected with the lower end of the recovery parachute through a parachute remover, the aerostat further comprises the nacelle connecting and separating device, the upper connector is connected with the rope, and the lower connector is connected with the recovery parachute.
The invention has the remarkable effects that:
1. the device utilizes the ball, the ball limit groove, the ball bowl and the piston to form a structure similar to a thrust ball bearing, ensures the strength and the reliability of connection, has good rotation performance, and eliminates the adverse effect of the rotation motion of the ball and the nacelle on the reliability of parachute opening in the high-altitude balloon flight process.
2. The device utilizes the high-pressure gas generated by the detonation of the miniature electric detonator to push the piston to shear the safety pin to separate the upper connector from the lower connector, thereby realizing the separation of the ball body and the nacelle and having the advantages of quick and reliable separation.
3. The device has compact structure, is firm and durable, and can be widely applied to the connection and separation of equipment on high-altitude air balls and other space aircrafts.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
Fig. 1 is a schematic view of a prior art high-altitude balloon connection and disconnection device.
Fig. 2 is a front view of the pod coupling and decoupling apparatus of the present invention.
Figure 3 is a side view of the pod attachment and detachment apparatus of the present invention.
Fig. 4 is a schematic view of the structure of the lower connector.
Fig. 5 is a cross-sectional view of the upper connector.
FIG. 6 is a schematic view of an aerostat according to the present invention.
In the figure: 1-sphere, 2-cable cutter, 3-recovered parachute, 4-nacelle, 5-parachute remover, 6-rotating hanging ring, 7-rope, 8-nacelle connecting and separating device, 10-upper connector, 11-central blind hole, 12-ball limit groove, 13-electric control type explosive, 14-shackle device, 15-upper seat, 20-lower connector, 21-protruding part, 22-ball, 23-bowl, 24-piston head, 25-safety pin, 26-central through hole, 27-pin hole, 28-lower seat.
Detailed Description
The following detailed description of the invention, taken in conjunction with the accompanying drawings, is given by way of illustration and explanation only, and should not be taken as limiting the scope of the invention in any way. Furthermore, the features in the embodiments and in the different embodiments in this document can be combined accordingly by a person skilled in the art from the description of this document.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 2 to 5, the nacelle connecting and separating device according to the embodiment of the invention comprises an upper connector 10 and a lower connector 20. The upper connector 10 comprises an upper seat body 15, a central blind hole 11 formed upwards from the bottom of the upper seat body 15, and a ball limiting groove 12 formed around the inner wall of the central blind hole 11.
The lower connector 20 comprises a lower seat body 28 with a convex longitudinal section, a central through hole 26 formed in the lower seat body 28, a through pin hole 27 formed in the lower seat body 28 perpendicular to the central axis of the lower seat body 28, and a safety pin 25 penetrating the pin hole 27. The safety pin 25 is made of metal or plastic with better strength, and has a long strip shape or a long sheet shape.
A plurality of bowls 23 are provided at intervals around the outer wall of the boss portion 21 on the lower housing 28, and the bowls 23 communicate with the center through-hole 26.
The convex part 21 on the lower seat body 28 is inserted into the central blind hole 11, and the ball limiting groove 12 and the ball bowl 23 are correspondingly closed to form a plurality of complete independent ball limiting spaces. And each ball limiting space is internally provided with a ball 22, and the ball 22 is in clearance fit with the ball limiting groove 12 and the ball bowl 23.
A piston head 24 with a hollow cavity is provided in the central through hole 26 above the safety pin 25. The end of piston head 24 facing safety pin 25 is tapered.
An electric control explosive 13 is fixedly arranged at the top of the central blind hole 11, and the electric control explosive 13 is positioned in the hollow cavity of the piston head 24. The electric control explosive 13 is a miniature electric detonator.
The size of the intersection of the bowl 23 and the central through hole 26 is larger than the diameter of the ball 22. The aperture of the intersection of the ball bowl 23 and the central through hole 26 is larger than the aperture of the hole of the ball bowl 23 on the side facing the ball limiting groove 12.
The outer wall of piston head 24 seals off the intersection of bowl 23 and central bore 26, and the outer wall of piston head 24 abuts ball 22.
The upper connector 10 and the lower connector 20 are respectively provided with a shackle device 14 which can be connected with external equipment. The shackle device 14 is in the form of a conventional hook, loop or latch closure, and may be configured differently depending on the actual requirements.
When the nacelle connecting and separating device is assembled, the miniature electric detonator is fixed at the inner top of the central blind hole 11 of the upper connector 10 in an adhering mode, the ball 22 is arranged in the ball bowl 23 of the lower connector 20, the convex part 21 of the lower connector 20 is arranged in the central blind hole 11 of the upper connector 10, the piston head 24 is arranged in the central through hole 26, and finally the safety pin 25 is inserted into the pin hole 27, so that the safety pin 25 is in contact with the bottom of the piston head 24, and the nacelle connecting and separating device is assembled.
As shown in fig. 6, the present embodiment also provides an aerostat comprising a sphere 1, a rope 7 connected to the sphere 1, a recovery parachute 3, a pod 4, and a pod connection and separation device 8. The nacelle 4 is connected with the lower end of the recovery parachute 3 through a parachute remover 5. The upper connector 10 is connected with the rope 7, and the lower connector 20 is connected with the recovery parachute 3.
In the high-altitude balloon flight test, when the separation is needed, the micro electric detonator is controlled to detonate, the generated high-pressure gas pushes the piston head 24 to shear the safety pin 25, the piston head 24 does not block the intersecting position of the spherical bowl 23 and the central through hole 26 any more, the balls 22 are separated from the ball limiting groove 12 and the spherical bowl 23 and fall from the central through hole 26, the convex part 21 of the lower connector 20 is separated from the central blind hole 11 of the upper connector 10, and the device is released for combination, so that the quick separation is realized.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (4)
1. A pod connection and disconnection device, characterized by: the ball limiting device comprises an upper connector (10) and a lower connector (20), wherein the upper connector (10) comprises an upper seat body (15), a central blind hole (11) formed upwards from the bottom of the upper seat body (15) and a ball limiting groove (12) formed around the inner wall of the central blind hole (11);
the lower connector (20) comprises a lower base body (28) with a convex longitudinal section, a central through hole (26) formed in the lower base body (28), a through pin hole (27) formed in the lower base body (28) and perpendicular to the central axis of the lower base body (28), a safety pin (25) penetrating through the pin hole (27), a plurality of bowls (23) arranged around the outer wall of the convex part (21) on the lower base body (28) at intervals, and the bowls (23) are communicated with the central through hole (26);
the convex part (21) on the lower seat body (28) is inserted into the central blind hole (11), the ball limiting groove (12) and the ball bowl (23) are correspondingly sealed to form a plurality of complete and independent ball limiting spaces, the ball (22) is arranged in each ball limiting space, and the balls (22) are in clearance fit with the ball limiting groove (12) and the ball bowl (23);
a piston head (24) with a hollow cavity is arranged in the central through hole (26) and above the safety pin (25), an electric control explosive (13) is fixedly arranged at the top of the central blind hole (11), and the electric control explosive (13) is positioned in the hollow cavity of the piston head (24);
the size of the intersecting part of the ball bowl (23) and the central through hole (26) is larger than the diameter of the ball (22); the outer wall of the piston head (24) seals the intersecting part of the ball bowl (23) and the central through hole (26), and the outer wall of the piston head (24) is abutted with the ball (22);
the aperture of the intersection of the ball bowl (23) and the central through hole (26) is larger than the aperture of the hole of the ball bowl (23) on the side facing the ball limiting groove (12);
and the upper connector (10) and the lower connector (20) are respectively provided with a shackle device (14) which can be connected with external equipment.
2. Nacelle connection and disconnection apparatus according to claim 1, wherein: the end of the piston head (24) facing the safety pin (25) is conical or hemispherical.
3. Nacelle connection and disconnection apparatus according to claim 2, wherein: the electric control type explosive (13) is a miniature electric detonator.
4. The utility model provides an aerostat, includes spheroid (1), rope (7) that are connected with spheroid (1), retrieves parachute (3), nacelle (4), and nacelle (4) are connected through parachute remover (5) with retrieving parachute (3) lower extreme, its characterized in that: the nacelle connection and separation device of any one of the preceding claims 1-3, wherein the upper connector (10) is connected with a rope (7), and the lower connector (20) is connected with a recovery parachute (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477412.9A CN109292070B (en) | 2018-12-04 | 2018-12-04 | Nacelle connection and separation device and aerostat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477412.9A CN109292070B (en) | 2018-12-04 | 2018-12-04 | Nacelle connection and separation device and aerostat |
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| Publication Number | Publication Date |
|---|---|
| CN109292070A CN109292070A (en) | 2019-02-01 |
| CN109292070B true CN109292070B (en) | 2023-10-20 |
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| CN201811477412.9A Active CN109292070B (en) | 2018-12-04 | 2018-12-04 | Nacelle connection and separation device and aerostat |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109896022B (en) * | 2019-03-28 | 2023-12-08 | 河南机电职业学院 | High-pressure pneumatic booster take-off device of light unmanned aerial vehicle |
| CN111717401B (en) * | 2020-06-04 | 2021-08-27 | 天津爱思达航天科技有限公司 | Quick separation mechanism for parachute at tail of aircraft and aircraft |
| CN114261501A (en) * | 2021-12-27 | 2022-04-01 | 湖南航天远望科技有限公司 | High-altitude balloon nacelle |
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| CN2506535Y (en) * | 2001-10-22 | 2002-08-21 | 何原 | Free fly balloon height controller |
| CN2639178Y (en) * | 2003-09-01 | 2004-09-08 | 国家海洋技术中心 | Airborne expendable sea surface automatic throw-out apparatus |
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| CN109292070A (en) | 2019-02-01 |
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