CN112793812B - Rope net storage and release mechanism with adjustable tension and instant release - Google Patents
Rope net storage and release mechanism with adjustable tension and instant release Download PDFInfo
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- CN112793812B CN112793812B CN202011622365.XA CN202011622365A CN112793812B CN 112793812 B CN112793812 B CN 112793812B CN 202011622365 A CN202011622365 A CN 202011622365A CN 112793812 B CN112793812 B CN 112793812B
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- rope
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G4/00—Tools specially adapted for use in space
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B69/00—Unpacking of articles or materials, not otherwise provided for
- B65B69/0033—Unpacking of articles or materials, not otherwise provided for by cutting
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Abstract
The invention belongs to the field of space debris cleaning, and particularly relates to a rope net storage and release mechanism with adjustable tension and capable of instantly releasing. Comprises a net bag, an outer cylinder, a rope, a tension adjuster, a rope cutter bracket and a rope cutter; the outer cylinder provides support for the whole mechanism and provides a containing space for the net bag; the two ends of the rope are connected with the two ends of the tension adjuster to form a closed circular bundling net bag, and the tension adjuster is used for adjusting the tension on the rope; the rope cutter is arranged on the rope cutter support and comprises a blade, the blade is driven according to a trigger signal to cut off the rope, and the net bag is released; in addition, the rope cutter can cut off the rope immediately when the rope net needs to be launched, and the fixed rope net is loosened, so that the execution of subsequent control instructions is facilitated.
Description
Technical Field
The invention belongs to the field of space debris cleaning, and particularly relates to a rope net storage and release mechanism with adjustable tension and capable of instantly releasing.
Background
At present, except for the spacecraft which is still in normal use, the space still has dead man-made objects, namely space debris, remained in outer space. At present, the number of the space debris is as high as ten thousands, and the space debris threatens the safety of a working satellite at any moment, so that the space debris is not cleaned slowly. In the field of space debris cleaning, flexible capture off-rail is a novel off-rail technology. The technology wraps the target object by a net or cloth structure and forms a reliably connected assembly with the space tug through a rope, and then the space tug drags the target object to perform the task of off-track cleaning. A special container is needed to receive the net before it is launched. The container needs to ensure that the rope net keeps a folding state before launching in the rocket launching and satellite orbit entering processes; when the rope net needs to be launched, the fixing part of the rope net is loosened.
The prior container is usually designed to store the folded rope net in a net bag, and then the rope net is fixed by tying the net bag with ropes. When the rope net needs to be launched, the hot knife is used for cutting off the rope, and then the rope net can be launched. However, this solution has the following two problems:
1. after the net bag and other parts are assembled, the net bag and other parts need to undergo procedures of transportation, vibration acceptance and the like, and after the procedures, the rope for bundling the net bag can creep, so that the tension on the rope is reduced, and the risk can be brought to the subsequent rocket launching process.
2. When the hot knife is used for cutting off the rope, the hot knife is required to be heated, and the rope can be cut off only after the hot knife is heated to a certain degree. When the space tug is located at different track positions, the heating time is different. The temperature in the tugboat is high at the position where the tugboat can be irradiated by the sun, and the heating time is short; the temperature on the sunny side is low, and the heating time is long; and the specific cut-off time is random, which can cause difficulty in accurate control.
Disclosure of Invention
The invention aims to provide a rope net storage and release mechanism with adjustable tension and instant release. The invention utilizes the spring to ensure the tension on the rope for bundling the rope net, and adjusts the tension on the rope by rotating the bolt, thus adjusting the tension to the expected size after the creep deformation of the rope; and a rope cutter is adopted to realize instantaneous rope cutting.
The technical solution for realizing the purpose of the invention is as follows: a rope net containing and releasing mechanism with adjustable tension and instant release comprises a net bag, an outer barrel, a rope, a tension adjuster, a rope cutter bracket and a rope cutter;
the outer cylinder provides support for the whole mechanism and provides a containing space for the net bag;
the two ends of the rope are connected with the two ends of the tension adjuster to form a closed circular bundling net bag, and the tension adjuster is used for adjusting the tension on the rope;
the rope cutter is arranged on the rope cutter support and comprises a blade, and the blade is driven to cut off the rope according to the trigger signal to release the net bag.
Furthermore, the rope includes two from top to bottom, ties up the upper and lower side at the net package respectively, and corresponding rope cutter support and rope cutter all set up two, and two rope cutters all set up between two ropes from top to bottom.
Further, the tension adjuster comprises a rope connecting ring, a force adjusting bolt, a force adjusting nut and an adjuster spring;
rope clamping ring one end is connected with the rope, transfers power bolt to pass the other end of rope clamping ring, and transfers power bolt and rope clamping ring relatively rotatable, transfer the one end threaded connection of power bolt and accent power nut, and the screw thread regulation through transferring power bolt and accent power nut realizes the tensile regulation of rope, transfers the other end and the adjuster spring coupling of power nut, adjuster spring's the other end and rope connection.
Furthermore, the rope connecting ring is integrally U-shaped, a through hole is formed in the bottom of the U-shaped, the diameter of the head portion, connected with the rope connecting ring, of the force adjusting bolt is larger than that of the through hole, and the diameter of the portion, connected with the rope connecting ring, of the force adjusting bolt is smaller than that of the through hole, so that the force adjusting bolt and the rope connecting ring can rotate relatively.
Furthermore, the force adjusting nut is integrally rectangular, the force adjusting nut is divided into two parts by a vertical plate, a ring with internal threads is arranged at the end part of one side connected with the force adjusting bolt, and threads matched with the force adjusting bolt are arranged on an upper plate and a lower plate on the force adjusting nut between the ring and the vertical plate;
the vertical plate is provided with a through hole for fixedly connecting the adjuster spring, the end part of one side of the force adjusting nut connected with the adjuster spring is provided with a notch, the state of the adjuster spring can be observed through the notch, and when the tension of the adjuster spring is at an expected value, the end part of one end of the adjuster spring connected with the rope is positioned at the notch.
Furthermore, the rope cutter also comprises a shell, an initiating explosive device and a rope cutter spring;
the initiating explosive device is arranged in the cavity and used for driving the blade to move, the rope cutter spring is positioned in the cavity and sleeved on the blade, and the blade is limited by the rope cutter spring to ensure that the blade cannot cut off a rope when the blade is not excited; the rope is positioned in the groove and on the advancing path of the blade, the stroke of the blade is finished, the rope is cut off, and the net bag is released.
Compared with the prior art, the invention has the remarkable advantages that:
(1) the tension of the rope can be adjusted at any time by rotating the force adjusting bolt without binding the rope again.
(2) The rope can be cut off instantly by using the rope cutter, the time is accurate, and the rope is not influenced by the external temperature.
(3) The overall structure is mostly a mechanical structure, and the reliability is high in the complex electromagnetic environment of the outer space.
Drawings
Fig. 1 is a three-dimensional schematic view of a rope net storing and releasing mechanism of the present invention.
Fig. 2 is a three-dimensional schematic view of a tensioning device according to the present invention.
Fig. 3 is a cross-sectional view of the rope cutter of the present invention.
Description of reference numerals:
1-net bag, 2-outer cylinder, 3-rope, 4-tension adjuster, 5-rope cutter bracket, 6-rope cutter, 7-bottom plate, 8-rope connecting ring, 9-force adjusting bolt, 10-force adjusting nut, 11-adjuster spring, 12-shell, 13-initiating explosive device, 14-rope cutter spring and 15-blade.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
As shown in figure 1, the invention relates to a rope net containing and releasing mechanism with adjustable tension and instant release, which comprises an outer cylinder 2, a rope 3, a tension adjuster 4, a rope cutter 6 and the like. The outer cylinder 2 provides support for the entire mechanism and provides a storage space for the net bag 1. Two ropes 3 are respectively tied up at the upper and lower sides of the net bag to fix the net bag. The rope 3 is connected at both ends to the tensioning device 4. The rope 3 passes through the upper rope cutter 6 and the lower rope cutter 6 respectively. The rope cutter 6 is fixed on the outer cylinder 2 by a rope cutter bracket 5.
As shown in fig. 2, the tensioning device 4 is composed of a rope connecting ring 8, a force adjusting bolt 9, a force adjusting nut 10 and a spring 11. The force adjusting bolt 9 passes through the rope connecting ring 8 and can rotate relatively. When the force adjusting bolt 9 rotates, the rope connecting ring 8 cannot rotate, so that the rope 3 cannot be twisted when the force adjusting bolt 9 rotates. The force adjusting bolt 9 is matched with the force adjusting nut 10, so that the length of the bundling ring can be adjusted, and further the tension on the rope 3 can be adjusted. The other end of the force adjusting nut 10 is connected with an adjuster spring 11, and the tension on the rope 3 is equal to the elastic force of the adjuster spring 11. When the length of the adjuster spring 11 reaches the gap in the force nut 10, the tension on the cord 3 is at the desired value.
As shown in fig. 3, the rope cutter 6 is composed of a housing 12, an initiating explosive device 13, a rope cutter spring 14 and a blade 15. Located below the housing 12 is an initiator 13 and above the initiator 13 is a blade 15. The blade 15 is restrained by the rope cutter spring 14 to ensure that the blade 15 does not cut the rope 3 when not activated.
Two ropes 3 are tied up on the upper and lower sides of the net bag. The rope 3 is connected at both ends to a tension regulator, one end of which is connected to the rope attachment loop 8 and the other end to a regulator spring 11. The parts are assembled by ensuring that the end of the adjuster spring 11 attached to the tether 3 is aligned with the opening in the force nut 10, and that the length of the adjuster spring 11 corresponds to the desired amount of tension in the tether. When all the parts are assembled, the rope net housing and releasing mechanism needs to be subjected to a vibration test. In practical tests, the rope 3 may creep, which in turn may lead to loosening. To avoid re-binding, the force adjusting bolt 9 is rotated in the forward direction, the force adjusting bolt 9 is screwed into the force adjusting nut 10, and the cord 3 is tightened until the adjuster spring 11 is re-aligned with the notch in the force adjusting nut 10. In the process of rotating the force-adjusting bolt 9, the rope connecting ring 8 cannot rotate along with the rotation, and the rope 3 is guaranteed not to be twisted.
Two rope cutters 6 are fixed to the upper and lower portions of the outer cylinder by using rope cutter holders 5, respectively, and correspond to the two ropes 3. When the rope net needs to be launched, the initiating explosive device 13 at the bottom of the rope cutter 6 is excited to generate high-pressure fuel gas. The blade 15 moves forward rapidly under the push of the high-pressure gas. The rope 3 is located on the path of the advancing blade 15, the stroke of the blade 15 is finished, the rope 3 is cut off, and the net bag is released.
Claims (2)
1. A rope net containing and releasing mechanism with adjustable tension and instant release is characterized by comprising a net bag (1), an outer cylinder (2), a rope (3), a tension adjuster (4), a rope cutter bracket (5) and a rope cutter (6);
the outer cylinder (2) provides support for the whole mechanism and provides a containing space for the net bag (1);
the two ends of the rope (3) are connected with the two ends of the tension adjuster (4) to form a closed circular bundling net bag (1), and the tension adjuster (4) is used for adjusting the tension on the rope (3);
the rope cutter (6) is arranged on the rope cutter support (5) and comprises a blade (15), the blade (15) is driven to cut off the rope according to a trigger signal, and the net bag (1) is released; the rope (3) comprises an upper rope and a lower rope which are respectively tied at the upper side and the lower side of the net bag (1), the corresponding rope cutter bracket (5) and the corresponding rope cutter (6) are respectively arranged in two, and the two rope cutters (6) are respectively arranged between the upper rope and the lower rope (3);
the tension adjuster (4) comprises a rope connecting ring (8), a force adjusting bolt (9), a force adjusting nut (10) and an adjuster spring (11);
one end of the rope connecting ring (8) is connected with the rope (3), the force adjusting bolt (9) penetrates through the other end of the rope connecting ring (8), the force adjusting bolt (9) and the rope connecting ring (8) can rotate relatively, the force adjusting bolt (9) is in threaded connection with one end of the force adjusting nut (10), the tension of the rope (3) is adjusted through threaded adjustment of the force adjusting bolt (9) and the force adjusting nut (10), the other end of the force adjusting nut (10) is connected with the adjuster spring (11), and the other end of the adjuster spring (11) is connected with the rope (3);
the rope connecting ring (8) is integrally U-shaped, a through hole is formed in the bottom of the U-shaped, the diameter of the head part, connected with the rope connecting ring (8), of the force adjusting bolt (9) is larger than that of the through hole, and the diameter of the part, connected with the rope connecting ring, of the force adjusting bolt (9) is smaller than that of the through hole, so that the force adjusting bolt (9) and the rope connecting ring (8) can rotate relatively;
the force adjusting nut (10) is integrally rectangular, the force adjusting nut (10) is divided into two parts by a vertical plate, a circular ring with internal threads is arranged at the end part of one side connected with the force adjusting bolt (9), and threads matched with the force adjusting bolt are arranged on an upper plate and a lower plate on the force adjusting nut between the circular ring and the vertical plate;
the vertical plate is provided with a through hole for fixedly connecting the adjuster spring (11), the end part of one side of the force adjusting nut (10) connected with the adjuster spring (11) is provided with a notch, the state of the adjuster spring can be observed through the notch, and when the tension of the adjuster spring (11) is at an expected value, the end part of one end of the adjuster spring (11) connected with the rope (3) is positioned at the notch.
2. Mechanism according to claim 1, characterized in that the rope cutter (6) further comprises a housing (12), a pyrotechnic object (13) and a rope cutter spring (14);
a cavity, a channel and a groove which are adjacent to the cavity are arranged in the shell (12), the initiating explosive device (13) is arranged in the cavity and used for driving the blade (15) to move, the rope cutter spring (14) is positioned in the cavity and sleeved on the blade (15), the blade (15) is limited by the rope cutter spring (14), and the blade (15) can not cut off the rope (3) when the blade is not excited; the rope (3) is positioned in the groove and is positioned on the advancing path of the blade (15), the stroke of the blade (15) is finished, the rope (3) is cut off, and the net bag is released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011622365.XA CN112793812B (en) | 2020-12-30 | 2020-12-30 | Rope net storage and release mechanism with adjustable tension and instant release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011622365.XA CN112793812B (en) | 2020-12-30 | 2020-12-30 | Rope net storage and release mechanism with adjustable tension and instant release |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112793812A CN112793812A (en) | 2021-05-14 |
| CN112793812B true CN112793812B (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011622365.XA Active CN112793812B (en) | 2020-12-30 | 2020-12-30 | Rope net storage and release mechanism with adjustable tension and instant release |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115783315B (en) * | 2022-10-27 | 2024-04-30 | 航宇救生装备有限公司 | Fusing type compaction release mechanism for space rope net |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103587728A (en) * | 2013-10-23 | 2014-02-19 | 北京空间飞行器总体设计部 | Rope net type space debris capturing and cleaning system |
| CN106882402A (en) * | 2017-01-20 | 2017-06-23 | 北京空间飞行器总体设计部 | A kind of capture racemization mechanism suitable for spin space fragment |
| CN110844126A (en) * | 2019-12-23 | 2020-02-28 | 湖南苍树航天科技有限公司 | Spatial flying net compressing and releasing mechanism |
| CN211468827U (en) * | 2019-12-23 | 2020-09-11 | 湖南苍树航天科技有限公司 | Spatial flying net compressing and releasing mechanism |
| CN111776255A (en) * | 2020-06-24 | 2020-10-16 | 南京理工大学 | Mechanical rope net pressing and releasing mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017083534A1 (en) * | 2015-11-10 | 2017-05-18 | The Regents Of The University Of California | Modular rod-centered, distributed actuation and control architecture for spherical tensegrity robots |
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2020
- 2020-12-30 CN CN202011622365.XA patent/CN112793812B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103587728A (en) * | 2013-10-23 | 2014-02-19 | 北京空间飞行器总体设计部 | Rope net type space debris capturing and cleaning system |
| CN106882402A (en) * | 2017-01-20 | 2017-06-23 | 北京空间飞行器总体设计部 | A kind of capture racemization mechanism suitable for spin space fragment |
| CN110844126A (en) * | 2019-12-23 | 2020-02-28 | 湖南苍树航天科技有限公司 | Spatial flying net compressing and releasing mechanism |
| CN211468827U (en) * | 2019-12-23 | 2020-09-11 | 湖南苍树航天科技有限公司 | Spatial flying net compressing and releasing mechanism |
| CN111776255A (en) * | 2020-06-24 | 2020-10-16 | 南京理工大学 | Mechanical rope net pressing and releasing mechanism |
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| Publication number | Publication date |
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| CN112793812A (en) | 2021-05-14 |
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