CN112660420A - Compressing and releasing device and spacecraft - Google Patents
Compressing and releasing device and spacecraft Download PDFInfo
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- CN112660420A CN112660420A CN202110078336.XA CN202110078336A CN112660420A CN 112660420 A CN112660420 A CN 112660420A CN 202110078336 A CN202110078336 A CN 202110078336A CN 112660420 A CN112660420 A CN 112660420A
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Abstract
The invention discloses a compaction release device and a spacecraft, wherein the disclosed compaction release device comprises a first mounting base, a second mounting base, a flexible connecting piece, an elastic piece and a hot knife assembly; the first mounting base and the second mounting base are respectively fixedly connected with the flexible connecting piece; the hot knife assembly is positioned between the first mounting base and the second mounting base and is movably arranged on the second mounting base, and the flexible connecting piece is positioned on a moving path of the hot knife assembly; the first end of the elastic piece is connected with the second mounting base, the second end of the elastic piece is connected with the hot knife assembly, and the elastic piece drives the hot knife assembly to abut against the flexible connecting piece; the hot knife assembly is an electric heating structural member, and the hot knife assembly fuses the flexible connecting piece when electrified. The technical effects of simplifying the structure, reducing the impact load and reducing the pollution can be achieved by the scheme.
Description
Technical Field
The invention relates to the technical field of a compressing and releasing device of a spacecraft, in particular to a compressing and releasing device and a spacecraft.
Background
With the continuous development of space technology, the application scale of spacecrafts (including artificial satellites, deep space probes and the like) is continuously enlarged. The locking and unlocking are key technologies of the on-orbit flight of the spacecraft, are used for realizing key actions such as solar wing unfolding, antenna unfolding and effective load release, and the technology needs to be realized based on a compression release device.
The related compressing and releasing device is generally in a initiating explosive device type, the technology is mature and stable, but the obvious defects of large weight, large impact load, serious explosion pollution and the like exist.
Disclosure of Invention
The invention discloses a compaction release device and a spacecraft, which are used for simplifying the structure, reducing impact load and reducing pollution.
In order to solve the problems, the invention adopts the following technical scheme:
in one aspect, the present invention provides a compression release apparatus comprising a first mounting base, a second mounting base, a flexible connector, an elastic member, and a hot knife assembly;
the first mounting base and the second mounting base are respectively fixedly connected with the flexible connecting piece;
the hot knife assembly is positioned between the first mounting base and the second mounting base and is movably arranged on the second mounting base, and the flexible connecting piece is positioned on a moving path of the hot knife assembly;
the first end of the elastic piece is connected with the second mounting base, the second end of the elastic piece is connected with the hot knife assembly, and the elastic piece drives the hot knife assembly to abut against the flexible connecting piece;
the hot knife assembly is an electric heating structural member, and the hot knife assembly fuses the flexible connecting piece when electrified.
In another aspect, the invention provides a spacecraft comprising a first component, a second component and the aforementioned hold-down release device, the hold-down release device being connected to the first component by the first mounting base and to the second component by the second mounting base.
The technical scheme adopted by the invention can achieve the following beneficial effects:
in the compaction release device disclosed by the invention, the flexible connecting piece connects the first installation base part and the second installation base part in series, and the first installation base part and the second installation base part can be installed on a connected part of a spacecraft, so that the compaction locking function is realized; meanwhile, the hot knife assembly is an electric heating structural part, when the connected part of the spacecraft needs to be released, the flexible connecting part can be fused by electrifying the hot knife assembly, and then the release of the connected part is realized; because the elastic component drives the hot knife component to abut against the flexible connecting component, namely the elastic component provides a certain pre-tightening effect for the hot knife component, the hot knife component is always kept in reliable contact with the flexible connecting component in the process of gradually fusing the flexible connecting component, and the release function of the compression release device can be ensured to be smoothly realized.
Compared with the prior art, the compression release device disclosed by the invention is of a non-flame structure, so that the impact load is undoubtedly smaller when the release function is realized, the explosion pollution is avoided, and meanwhile, the hot knife assembly is simple in structure, so that the structure of the whole device can be undoubtedly simplified, and the light weight requirement is effectively matched.
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 and not to limit the invention.
In the drawings:
fig. 1 is a schematic structural diagram of a compression release device disclosed in an embodiment of the present invention;
FIG. 2 is an exploded view of the compression release device according to the embodiment of the present invention;
FIG. 3 is a front view of the compression release apparatus disclosed in the embodiments of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
fig. 5 and fig. 6 are schematic structural views of a hidden part structure of the compaction releasing device disclosed by the embodiment of the invention;
figure 7 is a schematic structural view of a lacing joint disclosed in embodiments of the present invention.
Description of reference numerals:
100-a first mounting base,
200-second mounting base, 210-first guide bar, 220-second guide bar,
300-flexible connecting piece,
400-hot knife component, 410-carrier plate, 411-first main body part, 412-conductive part, 420-heating wire, 500-elastic part,
600-pre-tightening slide block, 610-connecting part, 611-first avoidance hole, 620-first sliding support arm, 630-second sliding support arm, 640-accommodating space,
700-mounting hole,
800-tightening joint, 810-second main body part, 811-second avoidance hole, 820-elastic claw, 821-straight section and 822-tightening section.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 7, an embodiment of the invention discloses a pressing and releasing device. It should be noted that the hold-down release device fixes the solar wing in place on the spacecraft (for example, artificial earth satellite), and when the spacecraft is launched, the outermost profile of the solar wing does not exceed the dynamic envelope range of the launch vehicle and bears the load conditions of the launch; and secondly, after the spacecraft is in orbit, the fixed constraint on the solar wing can be released according to a program control instruction or a ground remote control instruction on the spacecraft. Solar wing, i.e. a solar panel, is a device for collecting solar energy and is used as an energy source for spacecrafts.
The compression release apparatus of the present embodiment includes a first mounting base 100, a second mounting base 200, a flexible connector 300, a hot blade assembly 400, and an elastic member 500.
The first installation base 100 and the second installation base 200 are base members of the pressing and releasing device, and the first installation base and the second installation base serve to connect and fix the connected part of the spacecraft, namely, the pressing and locking function of the pressing and releasing device on the connected part of the spacecraft is realized; meanwhile, the first and second mounting bases 100 and 200 also provide a mounting basis for other components of the compression release apparatus. In the following description of the present embodiment, it is exemplified that other members of the compression release mechanism are mainly provided on the second mounting base 200, but the present embodiment does not limit the embodiment in which these members can be provided on the first mounting base 100.
Specifically, the first installation base 100 and the second installation base 200 are respectively and fixedly connected with the flexible connector 300, so that the first installation base 100 is connected with the second installation base 200 through the flexible connector 300, and the first installation base 100 and the second installation base 200 are respectively installed on the connected part of the spacecraft, so that the compression and locking functions of the compression and release device on the connected part of the spacecraft are smoothly realized.
It should be understood that the flexible connecting member 300 serves to connect the first mounting base 100 and the second mounting base 200, but the present embodiment is not limited to the matching relationship between the first mounting base 100 and the second mounting base 200, for example, the first mounting base 100 can be overlapped on the second mounting base 200, or the first mounting base 100 and the second mounting base 200 can be assembled by an adjustable fastening component (an electromagnet, an electrically controlled latch, etc.) in order to ensure that the compression releasing device can effectively perform compression locking.
The flexible connector 300 and the hot knife assembly 400 are functional components of the compression release device, and the flexible connector 300 can be cut off by the hot knife assembly 400, so that the first mounting base 100 and the second mounting base 200 are separated, and the connected part of the spacecraft is released.
In the present embodiment, the hot blade assembly 400 is located between the first mounting base 100 and the second mounting base 200, and the first mounting base 100 and the second mounting base 200 have a certain distance after being mounted, and a certain mounting space is formed therebetween, so that the hot blade assembly 400 can be conveniently disposed. It should be noted that the installation space mentioned above refers to an installation space formed by the main body portions of the first installation base 100 and the second installation base 200, the second installation base 200 may be provided with a first support arm and a second support arm, and the first installation base 100 may be installed on the first support arm and the second support arm, so that the installation space is formed between the first installation base 100 and the second installation base 200, as shown in fig. 1.
The hot blade assembly 400 of this embodiment is an electric heating structure, and the hot blade assembly 400 fuses the flexible connector 300 when being powered on. It will be appreciated that when the hot knife assembly 400 is energized, the hot knife assembly 400 will continue to heat up and, when it reaches a critical temperature, will fuse the flexible connector 300, thereby allowing the first and second mounting bases 100 and 200 to separate and release. Of course, it is necessary to keep the hot knife assembly 400 in contact with the flexible connector 300 at the time of installation in order for the hot knife assembly 400 to fuse the flexible connector 300.
Due to the certain radial dimension of the flexible connecting element 300, the hot blade assembly 400 only fuses a portion of the flexible connecting element 300 close to one side of the hot blade assembly 400 during operation, and the flexible connecting element 300 is still partially in an unblown state, and at this time, the first mounting base 100 and the second mounting base 200 are still connected by the flexible connecting element 300 and cannot be released, which may cause the releasing function of the compression releasing device to fail. In order to solve the above problem, the hold-down releasing device of the present embodiment is further provided as follows.
In the present embodiment, the hot blade assembly 400 is movably provided to the second mounting base 200, and the flexible connector 300 is located on a moving path of the hot blade assembly 400. It should be understood that, with such an arrangement, the thermal knife assembly 400 can move relative to the second mounting base 200, and since the flexible connector 300 is fixedly connected to the first mounting base 100 and the second mounting base 200, that is, the relative position relationship between the flexible connector 300 and the second mounting base 200 is determined, when the thermal knife assembly 400 moves relative to the second mounting base 200, the thermal knife assembly 400 also moves relative to the flexible connector 300; since the flexible connector 300 is located on the moving path of the hot knife assembly 400, the hot knife assembly 400 can move into contact with the flexible connector 300 when it moves.
Meanwhile, the first end of the elastic member 500 of the present embodiment is connected to the second mounting base 200, the second end of the elastic member 500 is connected to the hot knife assembly 400, and the elastic member 500 drives the hot knife assembly 400 to abut against the flexible connecting member 300. It should be understood that both ends of the elastic member 500 are respectively connected to the second mounting base 200 and the hot blade assembly 400, that is, the second mounting base 200 and the hot blade assembly 400 provide a mounting base for the elastic member 500, and based on the elastic characteristics of the elastic member 500 itself, the elastic member 500 may generate a driving effect on the hot blade assembly 400 in the presence of deformation, that is, a certain pre-tightening effect is applied to the hot blade assembly 400.
Specifically, when the elastic member 500 and the hot knife assembly 400 are located on the same side of the flexible connecting member 300, the elastic member 500 is compressed to store energy, and the hot knife assembly 400 generates a pushing action, so that the hot knife assembly 400 abuts against the flexible connecting member 300; when the elastic member 500 and the hot knife assembly 400 are located at opposite sides of the flexible connecting member 300, the elastic member 500 is stretched to store energy, and the hot knife assembly 400 generates a pulling action, so that the hot knife assembly 400 abuts against the flexible connecting member 300. Of course, in any of the above embodiments, during the process of fusing the flexible connecting member 300 by the hot knife assembly 400, the elastic member 500 continuously pushes or pulls the hot knife assembly 400, that is, after the hot knife assembly 400 fuses the portion of the flexible connecting member 300 close to the hot knife assembly 400, the hot knife assembly 400 continues to abut against the un-fused portion of the flexible connecting member 300 until the hot knife assembly 400 completely fuses the flexible connecting member 300, so as to ensure that the first mounting base 100 and the second mounting base 200 are separated and released, thereby implementing the releasing function of the compression releasing mechanism.
The specific configurations of the first mounting base 100 and the second mounting base 200 are not limited in this embodiment, and both may be plate-shaped structural members, which have a simpler structure, and not only can reduce the weight of the compression release device, but also can provide sufficient mounting space on the plate surface; of course, the first and second mounting bases 100 and 200 can also be provided in a configuration that matches the connected components of the spacecraft to promote ease of installation.
The present embodiment also does not limit the type of the flexible connector 300, which may be, for example, a cable, a rope, etc., and is generally made of a material having low heat resistance. In the case that the flexible connecting member 300 is a rope, the flexible connecting member 300 is usually a polyethylene rope (such as a denima rope) which is made of polyethylene fiber and has good high crystallinity, stable chemical properties, and low temperature resistance, water resistance, moisture resistance, chemical corrosion resistance, and ultraviolet resistance; of course, the flexible connector 300 may also be a cotton string or the like.
As can be seen from the above description, in the compression release apparatus disclosed in the embodiment of the present invention, the flexible connector 300 connects the first mounting base 100 and the second mounting base 200 in series, and the first mounting base 100 and the second mounting base 200 can be mounted on the connected component of the spacecraft, so that the compression locking function is achieved; meanwhile, the hot knife assembly 400 is an electric heating structural member, when the connected part of the spacecraft needs to be released, the hot knife assembly 400 is electrified to work, and then the flexible connecting part 300 can be fused, so that the release of the connected part is realized; because the elastic member 500 drives the hot knife assembly 400 to abut against the flexible connecting member 300, that is, the elastic member 500 provides a certain pre-tightening effect for the hot knife assembly 400, the hot knife assembly 400 always keeps reliable contact with the flexible connecting member 300 in the process of gradually fusing off the flexible connecting member 300, and the release function of the compression release device can be ensured to be smoothly realized.
Compared with the related art, the compression release device disclosed by the embodiment of the invention is of a non-flame structure, so that the impact load is undoubtedly smaller when the release function is realized, the explosion pollution is not generated, and meanwhile, the hot knife assembly 400 is simple in structure, so that the structure of the whole device can be undoubtedly simplified, and the light weight requirement is effectively matched.
In this embodiment, the moving arrangement of the hot blade assembly 400 on the second mounting base 200 may be various, for example, the second mounting base 200 is provided with a sliding guide on which the hot blade assembly 400 can move. In another specific embodiment, a pre-tightening slider 600 may be disposed between the first mounting base 100 and the second mounting base 200 of the present embodiment, and the pre-tightening slider 600 may be movably disposed on the second mounting base 200; the hot knife assembly 400 is disposed on the pre-tightening slider 600, and the second end of the elastic member 500 is connected to the hot knife assembly 400 through the pre-tightening slider 600.
Specifically, the pre-tightening slider 600 is a mounting base of the hot knife assembly 400, and the pre-tightening slider 600 can move relative to the second mounting base 200, so that the pre-tightening slider 600 can drive the hot knife assembly 400 to move relative to the second mounting base 200; based on the elastic property of the elastic member 500 itself, the elastic member 500 may generate a driving effect on the pre-tightening slider 600 when deformed, and further generate a pre-tightening effect on the hot knife assembly 400 through the pre-tightening slider 600. It is understood that, based on the shape of the hot knife assembly 400, it is not convenient to stably couple with the elastic member 500 and easily causes deflection of the hot knife assembly 400 when coupled; the pre-tightening slider 600 can provide a sufficient mounting area for the elastic member 500, so as to ensure the stable connection between the elastic member 500 and the pre-tightening slider 600, and further, the elastic member 500 can provide a reliable pre-tightening effect in a predetermined direction for the hot knife assembly 400.
Further, the second mounting base 200 of this embodiment may be provided with a first guide rod 210 and a second guide rod 220 at an interval, the pre-tightening slider 600 is slidably sleeved on the first guide rod 210 and the second guide rod 220, the first guide rod 210 and the second guide rod 220 are arranged in parallel, and the flexible connecting member 300 is disposed between the first guide rod 210 and the second guide rod 220. It should be understood that, with such an arrangement, the first guide rod 210 and the second guide rod 220 are the mounting bases of the pre-tightening slider 600, and when the pre-tightening slider 600 is slidably fitted on the first guide rod 210 and the second guide rod 220, the movement of the hot knife assembly 400 relative to the second mounting base 200 is realized; the first guide rod 210 and the second guide rod 220 are arranged in parallel, so that the arrangement of the first guide rod and the second guide rod is regular, and the arrangement on the second installation base 200 is more convenient; since there is a gap between the first guide bar 210 and the second guide bar 220, and the flexible connector 300 is disposed between the first guide bar 210 and the second guide bar 220, the gap between the first guide bar 210 and the second guide bar 220 is utilized by the flexible connector 300, and the space utilization rate inside the compression release device can be clearly improved.
In conjunction with the foregoing embodiment, the specific moving manner of the hot blade assembly 400 and the pre-tightening slider 600 on the second mounting base 200 is not limited, and therefore, the specific number of the guide rods is not limited in this embodiment, and the number of the guide rods may be one, three, or the like.
Meanwhile, the embodiment does not limit the specific type of the elastic member 500, and the elastic member 500 may be a spring, and in the embodiment where the pre-tightening slider 600 moves on the second mounting base 200 through a guide rod, the spring may be wound on the guide rod, so that the guide rod may also play a guiding and restraining role on the elasticity, and prevent the spring from bending when being stressed to provide a resilient action deviating from the preset direction. Of course, the elastic member 500 may also be a structure such as foam, elastic rubber, etc.
In order to optimize the connection reliability between the pre-tightening slider 600 and the first guide bar 210 and the second guide bar 220, the pre-tightening slider 600 of the present embodiment may include a connection portion 610, a first sliding support arm 620 and a second sliding support arm 630, wherein one end of each of the first sliding support arm 620 and the second sliding support arm 630 is connected to the connection portion 610, and the other end thereof is slidably sleeved on the first guide bar 210 and the second guide bar 220, the first sliding support arm 620 and the second sliding support arm 630 are disposed opposite to each other, and an accommodation space 640 is disposed therebetween; the connecting portion 610 has a first avoiding hole 611, the first avoiding hole 611 is communicated with the accommodating space 640, the flexible connecting member 300 can be disposed in the accommodating space 640 through the first avoiding hole 611, and the hot blade assembly 400 abuts against the flexible connecting member 300 in the accommodating space 640.
Specifically, with such a configuration, the pre-tightening slider 600 can be simultaneously in sliding fit with the first guide rod 210 and the second guide rod 220 through the first sliding arm 620 and the second sliding arm 630, that is, the pre-tightening slider 600 has two structures to be in sliding fit with the first guide rod 210 and the second guide rod 220, which obviously increases the sliding contact area between the pre-tightening slider 600 and the first guide rod 210 and the second guide rod 220, and certainly improves the connection reliability and stability between the pre-tightening slider 600 and the first guide rod 210 and the second guide rod 220.
Meanwhile, in this embodiment, in order to optimize the space utilization rate inside the compressing and releasing device, the connecting portion 610 is provided with the first avoiding hole 611, so that the flexible connecting element 300 can be disposed in the accommodating space 640 through the first avoiding hole 611, compared with the embodiment in which the flexible connecting element 300 is disposed outside the pre-tightening slider 600, the accommodating space 640 between the first sliding support arm 620 and the second sliding support arm 630 can be utilized undoubtedly, thereby not only preventing the accommodating space 640 from being left unused, but also facilitating the reduction of the size of other components outside the pre-tightening slider 600. Of course, since the flexible connector 300 is disposed in the accommodating space 640, the hot blade assembly 400 of the present embodiment can be abutted against the flexible connector 300 in the accommodating space 640, so that the flexible connector 300 can be smoothly fused when the hot blade assembly 400 is powered on.
In this embodiment, the specific type of the hot knife assembly 400 can be varied, for example, the hot knife assembly 400 includes a sleeve and a heating wire 420 embedded in the sleeve, and the heating wire 420 can be heated to increase the temperature after being energized and the flexible connector 300 can be fused by heat transfer through the sleeve. In another specific embodiment, the hot knife assembly 400 of the present embodiment may include two support plates 410 and a heating wire 420, wherein the two support plates 410 are both connected to the pre-tightening slider 600 and are oppositely disposed on the pre-tightening slider 600, two ends of the heating wire 420 are respectively connected to the two support plates 410, and the heating wire 420 abuts against the flexible connecting member 300; the heating wire 420 is electrically connected to a power supply.
Specifically, in the present embodiment, the heating wire 420 directly contacts the flexible connector 300, and the energy of the heating wire 420 can be directly transmitted to the flexible connector 300 under the condition that the heating wire 420 is heated by power, so that an excessive energy loss of the hot blade assembly 400 in the process of fusing the flexible connector 300 can be avoided, and the reliability and fusing efficiency of fusing the flexible connector 300 by the hot blade assembly 400 can be further improved. Since the heating wire 420 has low rigidity and is easily deformed when contacting the flexible connector 300, the heating wire needs to be reliably contacted with the flexible connector 300 in a tensioned state and smoothly fuses the flexible connector 300; in the present embodiment, two ends of the heating wire 420 are respectively connected to the two support plates 410, the support plates 410 are the installation bases of the heating wire 420, and the two support plates 410 can tension the heating wire 420 by presetting a corresponding distance, so that the reliable contact between the heating wire and the flexible connector 300 can be ensured.
Meanwhile, since the structure of the carrier plate 410 is delicate, the tension degree and the setting position of the heating wire 420 can be conveniently adjusted by adjusting the relative positions of the two carrier plates 410 on the pre-tightening slider 600. In the aforementioned embodiment where the pre-tightening slider 600 includes the connection portion 610, the first sliding arm 620 and the second sliding arm 630, two ends of the carrier 410 can be respectively mounted on the first sliding arm 620 and the second sliding arm 630, and compared to the embodiment where only one end of the carrier 410 is mounted, two support areas on the pre-tightening slider 600 support the carrier 410, which is also beneficial to improving the mounting reliability of the carrier 410.
The heating wire 420 needs to be powered to work normally, and in this embodiment, the power supply device is electrically connected to the heating wire 420 for supplying power. The power supply device can be a compression release device or a power module on the spacecraft.
Generally, the power supply device needs to be connected to the heating wire 420 through a cable, but the heating wire 420 moves between the first and second installation bases 100 and 200, and the cable interferes with other members in the space. Based on this, the carrier 410 of the present embodiment may include a first main body 411 and a conductive portion 412, the first main body 411 is an insulating structure, the conductive portion 412 is disposed on the first main body 411, and two ends of the heating wire 420 are respectively connected to the conductive portions 412 on the two carrier 410, and are electrically connected to the power supply device through the conductive portion 412.
The first main body 411 is a main body portion of the carrier 410, and provides a mounting base for the conductive portion 412; since the first main body 411 is an insulating structure, most of the area of the carrier plate 410 has an insulating property, which reduces the dissipation of energy provided by the power supply device, and avoids the risk of short circuit and electric spark in the compressing and releasing device (compared with the electrical connection mode in which a copper nose is directly adopted in the related art), thereby undoubtedly reducing the work energy consumption of the hot knife assembly 400 and improving the safety.
The conductive part 412 functions to electrically connect the heating wire 420 and a power supply device, and can smoothly supply power to the heating wire 420 on the carrier plate 410. The embodiment is not limited to the specific configuration of the conductive portion 412, and the conductive portion 412 may be a conductive coating on one side surface of the carrier 410, where the conductive coating generally includes a metal conductive layer formed by various coating methods, a conductive tape, or other special coating materials, and specifically may be a copper foil layer, a silver foil layer, an aluminum foil layer, or the like. In case the conductive part 412 is a conductive coating, the heating wire 420 or the cable of the power supply device needs to penetrate the carrier plate 410 to be electrically connected with the conductive coating.
Alternatively, the conductive portion 412 may be directly disposed as a conductive material block penetrating through the carrier plate 410, so that both the heating wire 420 and the cable of the power supply device can be electrically connected to the conductive portion 412, and the processing procedure can be simplified.
The specific type of the heating wire 420 is not limited in this embodiment, and it may be a nickel-chromium alloy wire, but may also be another type such as an iron-chromium-aluminum alloy wire; under the condition that the heating wire 420 is a nichrome wire, the heating wire can be specifically a Cr20Ni80 heating alloy wire, the heating wire 420 has good insulation and temperature resistance, can adapt to a harsh space environment, has good shock resistance and corrosion resistance, is stable in high-temperature mechanical property, cannot be broken due to brittleness after being used for a long time, and can adapt to the harsh mechanical environment of a flight section and a landing section of an aircraft and the space environment during working.
In order to simplify the installation process of the flexible connection member 300 on the first installation base 100 and the second installation base 200, so as to improve the installation efficiency, the first installation base 100 and the second installation base 200 of the present embodiment may be both provided with a through installation hole 700, the flexible connection member 300 may be disposed through the first installation base 100 and the second installation base 200 through the installation hole 700, and the flexible connection member 300 is sleeved with a tightening joint 800, the tightening joint 800 may be assembled in the installation hole 700, the hole wall of the installation hole 700 abuts against the tightening joint 800, and the tightening joint 800 is pressed on the flexible connection member 300 along the circumferential direction.
It should be understood that, in the related art, the flexible connecting member 300 is usually clamped in the first mounting base 100 and the second mounting base 200, not only the mounting process is complicated, but also the clamping structure is easy to damage the flexible connecting member 300, which may lead to the flexible connecting member 300 being broken for a long time, and thus the compression releasing device is difficult to normally realize the compression locking function. In this embodiment, the flexible connector 300 may be fixedly mounted to the first and second mounting bases 100 and 200 by the tightening joint 800.
When the installation is carried out, the flexible connector 300 can be firstly inserted into the installation holes 700 of the first installation base 100 and the second installation base 200, then the tightening joint 800 is sleeved at the end part of the flexible connector 300, and the tightening joint 800 is slid to the installation holes 700 of the first installation base 100 and the second installation base 200, so that the installation process of the flexible connector 300 in the embodiment is very simple, and the installation efficiency can be improved undoubtedly.
When the tightening joint 800 is assembled in the mounting hole 700, it is pressed by the hole wall of the mounting hole 700, and at this time, the tightening joint 800 deforms and is pressed against the flexible connector 300 along the circumferential direction, thereby tightening the flexible connector 300. In general, deformation of the lacing joint 800 may be accomplished by an interference fit of its outer wall with the inner wall of the mounting hole 700. When tightening the joint 800 and tightening the flexible connector 300, the inner wall of the tightening joint 800 presses the flexible connector 300 along the circumference to fit the outer circumference of the flexible connector 300, and the flexible connector 300 is not damaged by the clamping structure, so as to ensure that the flexible connector 300 has a longer service life, and further avoid the problem that the flexible connector 300 is broken when the releasing device is not pressed and the releasing function is not implemented.
It should be noted that, the tightening joint 800 needs to be deformed to exert a tightening effect on the flexible connecting member 300, and based on this, in order to facilitate the tightening joint 800 to be deformed, the tightening joint 800 of this embodiment may include a second body 810 and a plurality of elastic claws 820, a first end of each elastic claw 820 is a fixed end and is connected to the second body 810, a second end of each elastic claw 820 is a free end, and a movable gap is formed between two adjacent elastic claws 820; the second main body 810 is provided with a second avoiding hole 811, and the flexible connecting piece 300 can penetrate through the tightening joint 800 through the second avoiding hole 811; the mounting hole 700 is a tapered hole, and when the tightening joint 800 is assembled in the mounting hole 700, the wall of the mounting hole 700 abuts against the plurality of elastic claws 820 and abuts against the plurality of elastic claws 820 on the flexible connector 300.
It should be understood that the second avoiding hole 811 may be used to pass through the flexible connector 300, when the flexible connector 300 is disposed in the fastening connector 800 through the second avoiding hole 811, that is, the flexible connector 300 is disposed in the space surrounded by the elastic claws 820. The second body portion 810 is the body portion of the constricting joint 800 that provides the mounting basis for the resilient jaws 820. Because the elastic clamping jaws 820 are independent bodies and the connection and matching relationship does not exist between every two elastic clamping jaws 820, when the elastic clamping jaws 820 are abutted against the inner wall of the mounting hole 700 to generate elastic deformation, the movable gap provides a deformation space for the elastic clamping jaws 820, and the elastic clamping jaws 820 can generate elastic deformation more easily.
With such an arrangement, since the mounting opening is a tapered hole, when the tightening joint 800 is assembled in the mounting hole 700, the elastic latch 820 is gradually pressed by the tapered surface of the mounting hole 700 (i.e. the inner wall of the mounting hole 700) to generate elastic deformation, until the tightening joint 800 is mounted in place, the tapered surface of the mounting hole 700 presses and abuts the elastic latch 820 against the outer circumferential surface of the flexible connector 300, so that the flexible connector 300 is reliably and fixedly mounted on the first mounting base 100 and the second mounting base 200.
The specific shape of the elastic latch 820 is not limited in this embodiment, for example, the elastic latch 820 may have a straight structure, but the elastic latch 820 having a completely straight structure has a greater deformation difficulty when being engaged with the installation hole 700, which will certainly increase the assembly difficulty of the tightening joint 800. In another specific embodiment, the elastic latch 820 of the present embodiment may include a flat section 821 and a tightening section 822, both ends of the flat section 821 are connected to the second body part 810 and the tightening section 822, respectively, and the tightening section 822 is disposed obliquely with respect to the flat section 821 and is inclined inward toward the tightening joint 800; when the tightening joint 800 is assembled in the installation hole 700, the hole wall of the installation hole 700 abuts against the tightening section 822, and the tightening section 822 abuts against the flexible connector 300.
With such an arrangement, since the tightening section 822 is inclined toward the inside of the tightening joint 800, the tightening section 822 matches with the tapered surface of the installation hole 700, when the tightening joint 800 is assembled in the installation hole 700, the tightening joint 800 can more easily extend into the installation hole 700 based on the tightening section 822, and after the tightening joint 800 is installed in place, the tapered surface of the installation hole 700 exerts a certain squeezing effect on the tightening section 822 to elastically deform the tightening section 822 and press the tightening section 822 against the outer circumferential surface of the flexible connector 300, so that the flexible connector 300 is reliably and fixedly installed on the first installation base 100 and the second installation base 200.
In order to prevent the tightening joint 800 from loosening and falling out of the mounting holes 700 of the first and second mounting bases 100 and 200 after long-term use, the first and second mounting bases 100 and 200 may be provided with a pressing block in a region corresponding to the mounting hole 700, the flexible connector 300 may be inserted into the pressing block, and the pressing block may be disposed opposite to the tightening joint 800 in the mounting hole 700 and may limit the tightening joint 800 in the mounting hole 700.
Based on the aforementioned hold-down releasing device, the embodiment of the present invention further discloses a spacecraft, which includes a first component, a second component, and the aforementioned hold-down releasing device, wherein the hold-down releasing device is connected to the first component through the first mounting base 100, and is connected to the second component through the second mounting base 200.
It should be understood that the first component is a connection base of the first mounting base 100, and the second component is a connection base of the second mounting base 200, and the embodiment is not limited to the specific types of the first component and the second component, which should be determined according to the specific application of the compression release device. The hold-down release device of the present embodiment is used to achieve solar wing deployment, where the first and second components are to be the shells of the spacecraft associated with the solar wing.
Likewise, the present embodiment does not limit the specific type of spacecraft, which may be an artificial earth satellite, a space probe, a space shuttle, or the like.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A compression release device comprising a first mounting base (100), a second mounting base (200), a flexible connector (300), a hot knife assembly (400), and a resilient member (500);
the first installation base (100) and the second installation base (200) are respectively fixedly connected with the flexible connecting piece (300);
the hot knife assembly (400) is positioned between the first mounting base (100) and the second mounting base (200) and is movably arranged on the second mounting base (200), and the flexible connector (300) is positioned on the moving path of the hot knife assembly (400);
the first end of the elastic piece (500) is connected with the second mounting base (200), the second end of the elastic piece (500) is connected with the hot knife assembly (400), and the elastic piece (500) drives the hot knife assembly (400) to abut against the flexible connecting piece (300);
the hot knife assembly (400) is an electric heating structural member, and the flexible connecting piece (300) is fused when the hot knife assembly (400) is electrified.
2. The pinch release device of claim 1, wherein a pre-tensioning slider (600) is disposed between the first mounting base (100) and the second mounting base (200), the pre-tensioning slider (600) being movably disposed to the second mounting base (200); the hot knife assembly (400) is arranged on the pre-tightening sliding block (600), and the second end of the elastic piece (500) is connected with the hot knife assembly (400) through the pre-tightening sliding block (600).
3. The pressing and releasing device of claim 2, wherein a first guide rod (210) and a second guide rod (220) are arranged on the second mounting base (200) at intervals, the pre-tightening slider (600) is slidably sleeved on the first guide rod (210) and the second guide rod (220), the first guide rod (210) and the second guide rod (220) are arranged in parallel, and the flexible connecting piece (300) is arranged between the first guide rod (210) and the second guide rod (220).
4. The pressing and releasing device of claim 3, wherein the pre-tightening slider (600) comprises a connecting portion (610), a first sliding arm (620) and a second sliding arm (630), one end of each of the first sliding arm (620) and the second sliding arm (630) is connected to the connecting portion (610), the other end of each of the first sliding arm and the second sliding arm is slidably sleeved on the first guide rod (210) and the second guide rod (220), the first sliding arm (620) and the second sliding arm (630) are arranged opposite to each other, and a containing space (640) is arranged between the first sliding arm and the second sliding arm;
first dodging hole (611) has been seted up in connecting portion (610), first dodging hole (611) with accommodation space (640) intercommunication, flexible connectors (300) accessible first dodging hole (611) and set up in accommodation space (640), hot sword subassembly (400) be in accommodation space (640) with flexible connectors (300) looks butt.
5. The pressing and releasing device of claim 2, wherein the hot knife assembly (400) comprises two carrier plates (410) and a heating wire (420), the two carrier plates (410) are connected with the pre-tightening slider (600) and are oppositely arranged on the pre-tightening slider (600), two ends of the heating wire (420) are respectively connected with the two carrier plates (410), and the heating wire (420) is abutted with the flexible connecting piece (300); the heating wire (420) is electrically connected with a power supply device.
6. The compact releasing apparatus according to claim 5, wherein the carrier plate (410) comprises a first main body portion (411) and a conductive portion (412), the first main body portion (411) is an insulating structure, the conductive portion (412) is disposed on the first main body portion (411), two ends of the heating wire (420) are respectively connected to the conductive portions (412) of the two carrier plates (410), and are electrically connected to the power supply apparatus through the conductive portions (412).
7. The compression release device as claimed in claim 1, wherein the first mounting base (100) and the second mounting base (200) are each provided with a through mounting hole (700), the flexible connecting member (300) can be inserted into the first mounting base (100) and the second mounting base (200) through the mounting hole (700), and the flexible connecting member (300) is sleeved with a tightening joint (800), the tightening joint (800) can be assembled in the mounting hole (700), the wall of the mounting hole (700) abuts against the tightening joint (800), and the tightening joint (800) is circumferentially compressed on the flexible connecting member (300).
8. The compression release device of claim 7, wherein the tightening joint (800) comprises a second body portion (810) and a plurality of elastic jaws (820), a first end of each elastic jaw (820) is a fixed end and is connected with the second body portion (810), a second end of each elastic jaw (820) is a free end, and a movable gap is formed between every two adjacent elastic jaws (820); the second main body part (810) is provided with a second avoidance hole (811), and the flexible connecting piece (300) can penetrate through the second avoidance hole (811) and is arranged in the tightening joint (800);
the mounting hole (700) is a tapered hole, when the tightening joint (800) is assembled in the mounting hole (700), the hole wall of the mounting hole (700) is abutted against the plurality of elastic claws (820), and the plurality of elastic claws (820) are abutted against the flexible connecting piece (300).
9. The compression release device as claimed in claim 8, wherein the resilient jaw (820) comprises a flat section (821) and a tightening section (822), both ends of the flat section (821) are connected with the second body part (810) and the tightening section (822), respectively, and the tightening section (822) is disposed obliquely with respect to the flat section (821) and is inclined inward of the tightening joint (800); when the tightening joint (800) is assembled in the mounting hole (700), the hole wall of the mounting hole (700) is abutted against the tightening section (822), and the tightening section (822) is abutted against the flexible connecting piece (300).
10. A spacecraft comprising a first component, a second component and the compression release apparatus of any one of claims 1 to 9, the compression release apparatus being connected to the first component by the first mounting base (100) and to the second component by the second mounting base (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110078336.XA CN112660420A (en) | 2021-01-20 | 2021-01-20 | Compressing and releasing device and spacecraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110078336.XA CN112660420A (en) | 2021-01-20 | 2021-01-20 | Compressing and releasing device and spacecraft |
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| Publication Number | Publication Date |
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| CN112660420A true CN112660420A (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110078336.XA Pending CN112660420A (en) | 2021-01-20 | 2021-01-20 | Compressing and releasing device and spacecraft |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071719A (en) * | 2021-04-30 | 2021-07-06 | 北京吾天科技有限公司 | Double-hot-cutter type compression and release mechanism |
| CN113173268A (en) * | 2021-06-08 | 2021-07-27 | 中国科学院微小卫星创新研究院 | Solar wing configuration and method of deploying the same |
| CN113212799A (en) * | 2021-06-22 | 2021-08-06 | 北京微纳星空科技有限公司 | Lock release device |
| CN113753266A (en) * | 2021-09-23 | 2021-12-07 | 北京国电高科科技有限公司 | Fuse type pressing and releasing device |
| CN114013690A (en) * | 2021-11-23 | 2022-02-08 | 北京微纳星空科技有限公司 | Synchronous unlocking and releasing mechanism and distributed locking and separating device |
| CN115158712A (en) * | 2022-09-08 | 2022-10-11 | 长沙天仪空间科技研究院有限公司 | Satellite separation hot knife device |
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2021
- 2021-01-20 CN CN202110078336.XA patent/CN112660420A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071719A (en) * | 2021-04-30 | 2021-07-06 | 北京吾天科技有限公司 | Double-hot-cutter type compression and release mechanism |
| CN113173268A (en) * | 2021-06-08 | 2021-07-27 | 中国科学院微小卫星创新研究院 | Solar wing configuration and method of deploying the same |
| CN113173268B (en) * | 2021-06-08 | 2023-10-17 | 中国科学院微小卫星创新研究院 | Solar wing configuration and method of deployment thereof |
| CN113212799A (en) * | 2021-06-22 | 2021-08-06 | 北京微纳星空科技有限公司 | Lock release device |
| CN113753266A (en) * | 2021-09-23 | 2021-12-07 | 北京国电高科科技有限公司 | Fuse type pressing and releasing device |
| CN114013690A (en) * | 2021-11-23 | 2022-02-08 | 北京微纳星空科技有限公司 | Synchronous unlocking and releasing mechanism and distributed locking and separating device |
| CN114013690B (en) * | 2021-11-23 | 2022-08-05 | 北京微纳星空科技有限公司 | Synchronous unlocking and releasing mechanism and distributed locking and separating device |
| CN115158712A (en) * | 2022-09-08 | 2022-10-11 | 长沙天仪空间科技研究院有限公司 | Satellite separation hot knife device |
| CN115158712B (en) * | 2022-09-08 | 2023-01-17 | 长沙天仪空间科技研究院有限公司 | Satellite separation hot knife device |
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