CN109229431B - Non-explosive unlocking device and locking and unlocking method - Google Patents
Non-explosive unlocking device and locking and unlocking method Download PDFInfo
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- CN109229431B CN109229431B CN201811057817.7A CN201811057817A CN109229431B CN 109229431 B CN109229431 B CN 109229431B CN 201811057817 A CN201811057817 A CN 201811057817A CN 109229431 B CN109229431 B CN 109229431B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/64—Systems for coupling or separating cosmonautic vehicles or parts thereof, e.g. docking arrangements
- B64G1/645—Separators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/42—Arrangements or adaptations of power supply systems
- B64G1/44—Arrangements or adaptations of power supply systems using radiation, e.g. deployable solar arrays
- B64G1/443—Photovoltaic cell arrays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/64—Systems for coupling or separating cosmonautic vehicles or parts thereof, e.g. docking arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
- F42B15/36—Means for interconnecting rocket-motor and body section; Multi-stage connectors; Disconnecting means
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Abstract
The invention provides a non-explosive unlocking device and a locking and unlocking method, and belongs to the field of unlocking devices. The device comprises a fastening rope, a hot knife assembly and at least two locking and releasing components, wherein the locking and releasing components are fixed on the first components, the fastening rope is used for providing tightening force for the locking and releasing components to enable the locking and releasing components to be locked in a first state and the second components, the hot knife assembly comprises a hot knife and a hot knife installation part, the hot knife installation part is made of heat insulation materials, the hot knife is arranged in the hot knife installation part, the fastening rope is tightly attached to the hot knife, the hot knife is an electric heating element and used for generating heat to fuse the fastening rope, and the locking and releasing components return to a second state to release the second components. The invention avoids carbon fragments caused by radial thrust, and the hot knife mounting part have stable structure and performance and high reliability under the space environment.
Description
Technical Field
The invention relates to a non-explosive unlocking device and a locking and unlocking method, and belongs to the field of unlocking devices.
Background
The locking and unlocking are key technologies of the on-orbit flight of the spacecraft, and are used for realizing key actions such as solar wing unfolding, antenna unfolding and effective load release. Use the priming system more on current star ship and the weapon model and be used for connecting and release the action, traditional priming system unlocking device main advantage lies in: the device has the advantages of high reliability, large stored energy, high action speed, simple and compact structure, small mass and volume and low cost, but the application of the device is limited because the device drives the functional mechanism to complete the task by the explosion or combustion of gunpowder, and the device has the defects of large impact load on the structure, harmful gas, fragment and the like generated by the combustion or explosion of the gunpowder, pollution to the space environment, disposable use and the like which cannot be overcome by the device. In recent years, low-impact and pollution-free non-explosive unlocking devices are rapidly developed, and non-explosive unlocking devices based on shape memory alloy, paraffin drive and hot knife cutting are applied.
The existing release separation device based on hot knife cutting generally comprises a Kevlar rope, a lock hook release mechanism, a rope tightening spring and a hot knife assembly, wherein the hot knife assembly comprises a flaky hot knife, a knife groove and a pushing part, a gap is formed between the initial position of the hot knife and the Kevlar rope, after the Kevlar rope is carbonized through heat at the tip end of the flaky hot knife, the hot knife moves towards the direction close to the rope along the knife groove through the pushing part, finally the hot knife penetrates through the rope, and the carbonized rope is cut off.
In the existing release separation device based on hot knife cutting, a hot knife needs to move along a knife groove by a pushing part, so that the volume and the weight of a hot knife assembly are large, and the release separation device is not suitable for the aerospace field with severe requirements on light weight; in addition, after the existing hot knife assembly carbonizes the rope, the flaky hot knife applies radial thrust to the rope in the cutting process, so that the carbonized part of the rope is easy to form carbonaceous fragments to pollute the space environment; in addition, the pushing part of the existing hot knife assembly mostly adopts the pretightening force of a spring to push the hot knife to move along the knife slot, and under the long-time space environment, the spring is easy to age under the stress state to generate plastic deformation, so that the performance is reduced, and the reliability of the hot knife assembly is low.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a non-flame unlocking device and a locking and unlocking method, which avoid carbon fragments caused by radial thrust, and have stable structure and performance and high reliability of a hot knife and a hot knife mounting part in a space environment.
In order to achieve the above purpose, the invention comprises the following technical scheme:
the utility model provides a non-firer unlocking device for with first part and second part locking or unblock release, including fastening rope, hot sword subassembly and two at least locking release parts, locking release part is used for fixing on the first part, fastening rope is used for locking release part provides the tightening force messenger locking release part is in the first state locking the second part, hot sword subassembly includes hot sword and hot sword installation department, hot sword installation department is made by thermal insulation material, hot sword sets up in the hot sword installation department, fastening rope local with the hot sword is hugged closely, the hot sword is electric heating element for produce heat fusing fastening rope makes locking release part returns the second state release the second part.
In an optional embodiment, the hot knife mounting portion is provided with a hot knife mounting hole and a rope threading hole, the hot knife mounting hole intersects with the rope threading hole and is communicated with the rope threading hole at the intersection, the hot knife is arranged in the hot knife mounting hole, and the fastening rope passes through the rope threading hole and is tightly attached to the hot knife.
In an alternative embodiment, the first end of the fastening rope is fixed, and the rope tightening device is configured to provide a tightening force to the fastening rope via the second end of the fastening rope to tighten the fastening rope to generate the tightening force.
In an optional embodiment, the rope tightening device includes a buckle, a buckle fixing portion, and a buckle positioning portion, the buckle positioning portion and the buckle fixing portion are both fixed on the first component, the buckle is provided with a first through hole, a first end of the buckle is used for cooperating with the buckle positioning portion to lock the buckle position, a second end of the buckle is rotatably connected with the buckle fixing portion, a second end of the fastening rope passes through the first through hole and is fixed when the buckle is away from the buckle positioning portion, and after the fastening rope is fixed, the first end of the buckle cooperates with the buckle positioning portion to lock the buckle position to provide a tightening force for the fastening rope.
In an alternative embodiment, the non-pyrotechnic unlocking device further comprises a rope pre-tensioning device for fixing the first end of the fastening rope and providing a tensioning force to the fastening rope through the first end of the fastening rope after the rope tightening device provides the tensioning force to the fastening rope.
In an optional embodiment, the rope pre-tightening device comprises a sliding block, a sliding rail, a vertical plate, a locking bolt and a locking nut, a second through hole and a locking through hole are formed in the sliding block, one end of the pre-tightening bolt is fixed on the vertical plate, the other end of the pre-tightening bolt penetrates through the locking through hole, the first end of the fastening rope penetrates through the second through hole and is fixed to the sliding block in a relative position, and the locking nut and the locking bolt are matched to push the sliding block to slide along the sliding rail so as to provide a tightening force for the fastening rope through the first end of the fastening rope.
In an alternative embodiment, the non-pyrotechnic unlocking device further comprises a base plate for fixing other components besides the fastening rope, and the base plate is fixedly connected with the first component.
In an optional embodiment, the substrate is made of a magnesium alloy material, and a surface of the substrate, which is in contact with the first component, and a surface of the substrate, which is in contact with the second component, are coated with conductive coatings.
In an alternative embodiment, the other surface of the substrate is coated with a thermal barrier coating.
In an alternative embodiment, the hot knife is a cylindrical structure.
In an optional embodiment, the hot knife includes a hot knife body, a metal lead and a wire, the hot knife body includes a housing, an electric heating wire and an insulating filler, the housing is made of stainless steel, the electric heating wire is disposed in the housing, the insulating filler is filled in a cavity of the housing, a first end of the wire is connected to the electric heating wire through the metal lead, and a second end of the wire is used for being connected to a power supply.
In an alternative embodiment, the conductor is a C550124-24 type insulated shielded conductor.
In an optional embodiment, the heating wire is a Cr20Ni80 electrothermal alloy wire.
In an alternative embodiment, the hot knife mounting portion is provided with a heat insulation block extending in a direction perpendicular to the axial direction of the hot knife.
In an alternative embodiment, the hot knife mounting portion is an alumina structural ceramic material.
In an alternative embodiment, a non-pyrotechnic unlocking device comprises two sets of the hot knife assemblies.
In an alternative embodiment, the fastening rope is a UHMWPE rope or a multi-strand cotton rope.
In an alternative embodiment, the locking release member includes a fixed shaft, an elastic member and a claw, the claw is fixed by the fixed shaft, the elastic member is compressed when the locking release member is in the first state, and the claw is rotated along the fixed shaft to return to the second state after the fastening rope is fused.
In an alternative embodiment, a non-pyrotechnic unlocking device includes four of the lock release members disposed at the four corners of the base plate.
A locking and unlocking method of a non-explosive unlocking device comprises the following steps:
fixing at least two locking release components and a hot knife assembly on a first component, wherein the hot knife assembly comprises a hot knife and a hot knife installation part, the hot knife installation part is made of heat insulation materials, and the hot knife is arranged in the hot knife installation part;
placing a second part between the at least two locking and releasing parts, arranging a fastening rope to provide a tightening force for the locking and releasing parts so that the locking and releasing parts are in a first state to lock the second part, and when the fastening rope is arranged, penetrating through the hot knife mounting part and partially clinging to the hot knife;
when the locking release component is released, the hot knife is electrified, the hot knife generates heat to fuse the fastening rope, the locking release component returns to the second state to release the second component, and unlocking is achieved.
In an optional embodiment, the hot knife mounting portion is provided with a hot knife mounting hole and a rope threading hole, the hot knife mounting hole intersects with the rope threading hole and is communicated with the rope threading hole at the intersection, the hot knife is arranged in the hot knife mounting hole, and the fastening rope passes through the rope threading hole and is tightly attached to the hot knife.
In an alternative embodiment, said positioning a fastening cord around said second member comprises:
the first end of the fastening rope is fixed, and the rope tightening device provides a tightening force for the second end of the fastening rope so that the fastening rope is tightened to generate the tightening force.
In an optional embodiment, the rope tightening device includes a buckle, a buckle fixing portion, and a buckle positioning portion, the buckle positioning portion and the buckle fixing portion are both fixed on the first component, the buckle is provided with a first through hole, a first end of the buckle is fitted to the buckle positioning portion, a second end of the buckle is rotatably connected to the buckle fixing portion, and the rope tightening device provides a tightening force to the second end of the fastening rope, and includes: when the buckle is far away from the buckle positioning part, the second end of the fastening rope passes through the first through hole and is fixed, the buckle is rotated, the first end of the buckle is matched with the buckle positioning part to lock the buckle position, and therefore the tightening force is provided for the fastening rope through the second end.
In an alternative embodiment, the first end of the fastening rope is fixed by a rope pretensioning device, and after the rope tightening device provides tension to the fastening rope, tension is provided to the fastening rope from the first end of the fastening rope by the rope pretensioning device.
In an optional embodiment, the rope pre-tightening device includes a slider, a slide rail, a vertical plate, a locking bolt and a locking nut, the slider is provided with a second through hole and a locking through hole, one end of the pre-tightening bolt is fixed on the vertical plate, the other end of the pre-tightening bolt passes through the locking through hole, the first end of the fastening rope passes through the second through hole and is fixed relative to the slider, after the rope tightening device provides a tightening force for the fastening rope, the locking nut is screwed to cooperate with the locking bolt to push the slider to slide along the slide rail, and the tightening force is provided for the fastening rope through the first end of the fastening rope.
In an alternative embodiment, the method further comprises fixing other components than the fastening cord to the first member via the base plate.
In an optional embodiment, the substrate is made of a magnesium alloy material, and a surface of the substrate, which is in contact with the first component, and a surface of the substrate, which is in contact with the second component, are coated with conductive coatings.
In an alternative embodiment, the other surface of the substrate is coated with a thermal barrier coating.
In an alternative embodiment, the hot knife is a cylindrical structure.
In an optional embodiment, the hot knife includes a hot knife body, a metal lead and a wire, the hot knife body includes a housing, an electric heating wire and an insulating filler, the housing is made of stainless steel, the electric heating wire is disposed in the housing, the insulating filler is filled in a cavity of the housing, a first end of the wire is connected to the electric heating wire through the metal lead, and a second end of the wire is used for being connected to a power supply.
In an alternative embodiment, the conductor is a C550124-24 type insulated shielded conductor.
In an optional embodiment, the heating wire is a Cr20Ni80 electrothermal alloy wire.
In an alternative embodiment, the hot knife mounting portion is provided with a heat insulation block extending in a direction perpendicular to the axial direction of the hot knife.
In an alternative embodiment, the hot knife mounting portion is an alumina structural ceramic material.
In an alternative embodiment, a method of locking and unlocking a non-pyrotechnic unlocking device includes two sets of the hot knife assemblies.
In an alternative embodiment, the fastening rope is a UHMWPE rope or a multi-strand cotton rope.
In an optional embodiment, the locking and releasing member includes a fixing shaft, an elastic member and a claw, the claw is fixed by the fixing shaft, a tightening force is provided to compress the elastic member, the locking and releasing member is in a first state, and the elastic member drives the claw to rotate along the fixing shaft to return to a second state after the fastening rope is fused.
In an optional embodiment, the locking and unlocking method of the non-explosive unlocking device comprises four locking and unlocking parts arranged at four corners of the base plate.
The invention has the beneficial effects that:
(1) according to the non-explosive unlocking device provided by the embodiment of the invention, the hot knife is designed into an electric heating element structure, and the heat insulation hot knife mounting part is arranged, so that the heat emitted by the hot knife is concentrated in the hot knife mounting part, the utilization efficiency of the heat in a space heat convection environment is improved, and the hot knife is ensured to cut off a rope reliably; the hot knife and the hot knife mounting part have simple structures and light weight, so that the requirement of the aerospace field on light weight is met; as the hot knife only fuses the rope by heat, carbonaceous fragments caused by radial thrust are avoided; the hot knife assembly provided by the embodiment of the invention does not need a compression spring, and the hot knife mounting part have stable structure and performance and high reliability in a space environment;
(2) the hot knife mounting holes and the rope threading holes which are intersected are formed in the hot knife mounting part, so that heat is concentrated at the position where the hot knife is attached to the fastening rope, the utilization efficiency of the heat in a space heat convection environment is further improved, and the hot knife is ensured to cut off the rope reliably;
(3) according to the rope tightening device provided by the embodiment of the invention, when the buckle is far away from the buckle positioning part, the fastening rope is fixed on the through hole of the buckle, a certain pre-tightening force is provided for the fastening rope, the buckle and the buckle positioning part are matched to lock the buckle position by rotating the buckle, the fastening rope is tightened by utilizing the tensioning force generated by the rotation displacement of the buckle, the locking and releasing part is in the first state to lock the second part, the rope tightening device with the structure generates reliable tensioning force by moving displacement, and the buckle positioning part are in rigid connection, so that the connection reliability is strong;
(4) the first component is reliably connected with the second component by arranging the base plate, the other components except the fastening rope are reliably connected with the base plate through threads, the connecting parts are coated with adhesives, so that the components are ensured to be reliably connected, and the mounting positions of the components on the base plate are dispersed, thereby avoiding the inconvenience in mounting caused by small size and small mounting operation space of the components, having long time period, reducing the mounting difficulty and improving the mounting efficiency;
(5) the conductivity of the contact part of the first component and the second component can be improved by coating the conductive coating on the corresponding position of the substrate, and the substrate can resist the corrosion of space atmosphere, alkali or certain acid gas due to the strong passivation performance of the conductive coating, so that the stability of the substrate in the space atmosphere is improved; the conductive coating has higher hardness, so that the wear resistance of the surface of the substrate can be improved, and the scratch defect of the substrate caused by collision in the use process can be avoided;
(6) the other surfaces of the substrate except the conductive coating are coated with the heat-insulating coating, so that the emissivity of the surface of the substrate is improved, the substrate is prevented from generating irreversible defects in the material under the action of long-term direct sunlight, the strength is reduced, the structure is failed, and the reliability of the substrate is improved;
(7) through designing into cylindric appearance with hot sword, can guarantee the fastening rope is hugged closely hot sword, under the harsh mechanical environment condition of flight section, the fastening rope can not cause the damage because of environment such as vibration, just the cylindric structure of hot sword guarantees that the heating is even, makes the fastening rope is pressed close to hot sword department even heating.
Drawings
Fig. 1 is a schematic view illustrating an assembly of a non-explosive unlocking device and a second component according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a hot knife assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a rope tightening device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a rope pretensioning device provided in an embodiment of the invention;
FIG. 5 is a schematic view of a substrate structure according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a hot knife according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a lock release member according to an embodiment of the present invention.
Wherein:
1. the device comprises a base plate, 2. a fastening rope, 3. a hot knife assembly, 4. a locking and releasing component, 5. a rope pre-tightening device and 6. a rope tightening device;
100. the second part 100, 101, the first contact surface 102, the second surface 301, the hot knife mounting part 302, the heat insulation block 303, the hot knife 401, the jaw 402, the elastic piece 403, the fixed shaft 501, the locking bolt 502, the sliding block 503, the sliding rail 504, the vertical plate 505, the locking nut 505, the buckle 601, the buckle 602, the buckle fixing part 603, the buckle positioning part 604 and the rotating shaft;
3031. the shell, 3032, wire, 3033 insulating filler.
Detailed Description
The following detailed description of embodiments of the invention will be made with reference to the accompanying drawings and specific examples.
Referring to fig. 1, an embodiment of the present invention provides a non-explosive unlocking device, for locking or unlocking a first member (not shown) with a second member 100, comprising a fastening rope 2, a hot knife assembly 3 and at least two locking and releasing members 4, wherein the locking and releasing members 4 are configured to be fixed on the first member, the fastening rope 2 surrounds the second member 100, and a tightening force is provided to the locking and releasing members 4 to enable the locking and releasing members 4 to lock the second member 100 in a first state, the hot knife assembly 3 comprises a hot knife 303 and a hot knife mounting portion 301, the hot knife mounting portion 301 is made of a heat insulating material, the hot knife 303 is disposed in the hot knife mounting portion 301, the fastening rope 2 passes through the hot knife mounting portion 301 to be tightly attached to a part of the hot knife 303, the hot knife 303 is an electric heating element, and is configured to generate heat to fuse the fastening rope 2, returning the lock release member 4 to the second state releases the second member 100. According to the non-explosive unlocking device provided by the embodiment of the invention, when the locking is performed, the locking and releasing component 4 is in the first state to lock the second component 100 by tensioning the fastening rope 2 to provide a tensioning force, when the locking and releasing component is released, the hot knife 303 is electrified through the power supply to ensure that the hot knife 303 generates heat to fuse the fastening rope 2, the tensioning force borne by the locking and releasing component 4 disappears, and the locking and releasing component returns to the second state to release the second component 100.
According to the non-explosive unlocking device provided by the embodiment of the invention, the hot knife is designed into an electric heating element structure, and the heat insulation hot knife mounting part is arranged, so that the heat emitted by the hot knife is concentrated in the hot knife mounting part, the utilization efficiency of the heat in a space heat convection environment is improved, and the hot knife is ensured to cut off a rope reliably; the hot knife and the hot knife mounting part have simple structures and light weight, so that the requirement of the aerospace field on light weight is met; as the hot knife only fuses the rope by heat, carbonaceous fragments caused by radial thrust are avoided; the hot knife assembly provided by the embodiment of the invention does not need a compression spring, and the hot knife mounting part are stable in structure and performance and high in reliability in a space environment.
In an alternative embodiment, as shown in fig. 2, the hot knife mounting portion 301 is provided with a hot knife mounting hole and a threading hole, the hot knife mounting hole intersects with the threading hole and is communicated with the intersection, the hot knife 303 is arranged in the hot knife mounting hole, and the fastening rope 2 passes through the threading hole and is tightly attached to the hot knife 303. The crossed hot knife mounting holes and the rope threading holes are formed in the hot knife mounting portion, so that heat is concentrated at the position where the hot knife and the fastening rope are attached to each other, the utilization efficiency of the heat in a space heat convection environment is further improved, and the hot knife is ensured to cut off the rope reliably.
In an alternative embodiment, as shown in fig. 1, the non-pyrotechnic unlocking device further comprises a rope tightening device 6, a first end of the fastening rope 2 is fixed, and the rope tightening device is used for providing a tightening force to the fastening rope 2 through a second end of the fastening rope 2. By providing a rope tightening means it is facilitated to provide a tightening force to the tightening rope so that tightening of the tightening rope provides a tightening force to the lock release member.
As shown in fig. 3, the rope tightening device 6 includes a buckle 601, a buckle fixing portion 602, and a buckle positioning portion 603, the buckle positioning portion 603 and the buckle fixing portion 602 are both fixed on the first component, a first through hole is formed on the buckle 601, a first end of the buckle 601 is used for cooperating with the buckle positioning portion 603 to lock the position of the buckle 601, a second end of the buckle 601 is rotatably connected with the buckle fixing portion 602 through a rotating shaft 604, the second end of the fastening rope 2 passes through the first through hole and is fixed when the buckle 601 is away from the buckle positioning portion (for example, when the first end of the buckle 601 is located right above the second end shown in fig. 3), the buckle 601 is rotated after the fastening rope 2 is fixed, so that the first end of the buckle 601 cooperates with the buckle positioning portion 603 to lock the position of the buckle 601 to provide a tightening force to the fastening rope 2, in the embodiment of the present invention, the fastening rope 2 and the buckle 601 are fixed by knotting the second end of the fastening rope 2, and in other embodiments, the fastening rope 2 and the buckle 601 may be fixed by providing a hook, a latch, or the like.
According to the rope tightening device provided by the embodiment of the invention, when the buckle is far away from the buckle positioning part, the fastening rope is fixed on the through hole of the buckle, a certain pre-tightening force is provided for the fastening rope, the buckle is matched with the buckle positioning part to lock the buckle position by rotating the buckle, the fastening rope is tightened by utilizing the tensioning force generated by the rotation displacement of the buckle, the locking and releasing part is in the first state to lock the second part, the rope tightening device with the structure generates reliable tensioning force by moving displacement, and the buckle positioning part are in rigid connection, so that the connection reliability is high.
In an alternative embodiment, as shown in fig. 1, the non-pyrotechnic unlocking device further comprises a rope pretensioner 5 for fixing the first end of the fastening rope 2 and providing tension to the fastening rope 2 through the first end of the fastening rope 2 after the rope tightener 6 provides tension to the fastening rope 2. Through setting up rope preloading device, realize providing the tension for the rope from both ends, ensure that the rope provides reliable tightening force for locking release part, improved the reliability and the installation nature of device.
As shown in fig. 4, in an alternative embodiment, the rope preloading device 5 includes a sliding block 502, a sliding rail 503, an upright plate 504, a locking bolt 501 and a locking nut 505, the sliding block 502 is provided with a second through hole and a locking through hole, one end of the preloading bolt is fixed on the upright plate 504, the other end of the preloading bolt passes through the locking through hole, the first end of the fastening rope 2 passes through the second through hole and is fixed in a position opposite to the sliding block 502, and the locking nut 505 and the locking bolt 501 cooperate to push the sliding block 502 to slide along the sliding rail 503, so as to provide a tensioning force for the fastening rope 2 through the first end of the fastening rope 2. In the embodiment of the invention, the relative position of the first end of the fastening rope and the sliding block is fixed in a manner of knotting the first end of the fastening rope to form a knot with the diameter larger than that of the locking through hole, and in other embodiments, the first end of the fastening rope and the sliding block can be fixed in a manner of arranging a hook, a lock catch and the like. The rope preloading device that this embodiment provided simple structure, occupation space is little, and lock nut and lock bolt cooperation can finely tune slider sliding displacement, realizes the effective control to the pulling force size.
As shown in fig. 1 and 5, the non-explosive unlocking device further includes a base plate 1 for fixing other components except the fastening rope 2, such as a lock release member 4, a hot knife assembly 3, a rope pre-tightening device 5 and a rope tightening device 6, wherein the base plate 1 is fixedly connected with the first component, so as to realize the fixed connection of the components and the first component.
Through setting up the base plate, will first part with the second part is reliably connected, except the fastening rope, all the other the subassembly all through the screw thread with the base plate is reliably connected, and connecting portion position all scribbles the adhesive, guarantees each subassembly is reliably connected, just each subassembly is in installation position on the base plate is comparatively dispersed, has avoided because each subassembly volume is less, installation operation space is little the installation inconvenience that causes, and the time cycle is long, has reduced the installation degree of difficulty, has improved the installation effectiveness.
In an alternative embodiment, the substrate 1 is made of a magnesium alloy material, and as shown in fig. 5, a surface of the substrate 1 contacting the first component and a surface of the substrate contacting the second component 100 (such as the first contact surface 101 shown in fig. 5) are coated with a conductive coating, and the conductive coating is preferably an electroless nickel coating.
The conductivity of the contact part of the first component and the second component can be improved by coating the conductive coating on the corresponding position of the substrate, and the substrate can resist the corrosion of space atmosphere, alkali or certain acid gas due to the strong passivation performance of the conductive coating, so that the stability of the substrate in the space atmosphere is improved; because the conductive coating has higher hardness, the wear resistance of the surface of the substrate can be improved, and the scratch defect caused by collision in the use process of the substrate is avoided.
In an alternative embodiment, the other surface of the substrate 1 (e.g., the second surface 102 shown in fig. 5) is coated with a thermal barrier coating.
Through the base plate except that other surface coating thermal barrier coating outside the conductive coating improves the emissivity on base plate surface avoids the base plate is in the inside irreversible defect that produces of material under the effect of long-term sunlight direct irradiation, causes the intensity to descend, and the structure is invalid, has improved the reliability of base plate.
In an alternative embodiment, the hot blade 303 has a cylindrical structure. Through designing into cylindric appearance with hot sword, can guarantee the fastening rope is hugged closely hot sword, under the harsh mechanical environment condition of flight section, the fastening rope can not cause the damage because of environment such as vibration, just the cylindric structure of hot sword guarantees that the heating is even, makes the fastening rope is pressed close to hot sword department even heating.
As shown in fig. 6, in an alternative embodiment, the hot blade 303 includes a hot blade body, a metal lead (not shown), and a wire 3032, the hot blade body includes a housing 3031, a heating wire (not shown), and an insulating filler 3033, the housing 3031 is made of stainless steel, the heating wire is disposed in the housing 3031, the insulating filler 3033 is filled in a cavity of the housing 3031, a first end of the wire 3032 is connected to the heating wire through the metal lead, a second end of the wire 3032 is used for connecting to a power supply, and in this embodiment, the insulating filler 3033 is preferably magnesium oxide particles.
Through the arrangement of the insulating filler with good insulating property and electric strength, heat emitted by the heating wire can be effectively conducted to the shell. The metal lead is preferably made of stainless steel, has small resistivity, is not easy to generate heat when large current passes through, cannot damage peripheral structures, has good corrosion resistance and high strength, is not easy to oxidize, and can adapt to severe space environments. The electric heating wire has good high-temperature strength, the plasticity is still good after long-term use, the electric heating wire can be repeatedly used under a certain temperature condition, and the electric heating wire adapts to the strategic development direction of low cost and low consumption of the existing spacecraft.
In an optional embodiment, the wire is a special insulation shielding wire for a C550124-24 type spacecraft.
In an optional embodiment, the heating wire is a Cr20Ni80 electrothermal alloy wire. The electric heating wire has good insulation and temperature resistance, can adapt to a harsh space environment, has good shock resistance and corrosion resistance, has stable high-temperature mechanical property, cannot generate brittle fracture after long-term use, and can adapt to the harsh mechanical environment of an aircraft flight segment and a landing segment and the space environment during working. The electric heating element adopted by the embodiment of the invention can be repeatedly heated for 1000h at 1200 ℃, and after the electric heating element works, the energy is provided for the hot knife assembly through a 28V loop, the hot knife fuses the fastening rope within 2min of power supply, and the unlocking time is reliable. In an alternative embodiment, the device comprises two groups of hot knife assemblies, and the two groups of hot knife assemblies are mutually redundant, so that the reliability of separation is ensured. In an alternative embodiment, the unlocking device further comprises a power supply, preferably a 28V power supply.
In an alternative embodiment, as shown in fig. 2, the hot knife mounting portion 301 is provided with a heat insulation block 302 extending in a direction perpendicular to the axial direction of the hot knife, so that heat generated by the hot knife 303 during operation is concentrated on the surface of the fastening rope 2, and the working efficiency of the non-explosive unlocking device is improved.
In an alternative embodiment, the hot knife mounting portion is a high temperature alumina structural ceramic material, preferably an A-series alumina heat resistant ceramic such as A-99, A-97, A-98, and the like.
The high-temperature-resistant high-performance high-temperature-resistant high-performance high-temperature. In the embodiment of the invention, the non-explosive unlocking device has good heat insulation property, can gather the hot knife generated during the operation of the hot knife in the hot knife installation part, ensures that all heating energy in the operation process acts on the fastening rope, and improves the working efficiency of the non-explosive unlocking device.
In an alternative embodiment, the fastening rope 2 is a UHMWPE rope or a multistrand cotton rope. The rope has good high crystallinity, stable chemical performance, low temperature resistance, water resistance, moisture resistance, chemical corrosion resistance and ultraviolet resistance. The diameter of the fastening rope 2 in the embodiment of the invention is preferably 2-3 mm.
In an alternative embodiment, as shown in fig. 7, the locking and releasing member 4 includes a fixing shaft 403, an elastic member 402 and a claw 401, the claw 401 is an L-shaped structure, one end of the claw is fixed by the fixing shaft 403, the elastic member 402 is used for compressing when the locking and releasing member 4 is in the first state, and the claw is driven to rotate along the fixing shaft to return to the second state after the fastening rope 2 is fused, in the embodiment of the present invention, the elastic member is a torsion spring. Fastening rope 2 is when setting up, presses on the position of buckling of jack catch 401, provides tightening force locking second part 100 for jack catch 401, and after fastening rope 2 melts, jack catch 401 kick-backs under the resilience force effect of torsional spring, releases second part 100, and the second part 100 that is released is the separation of falling to the ground freely, and whole in-process does not have the impact piece to produce, has solved big, the piece of impact load in the traditional firer device course of operation, many scheduling problems of surplus thing. The torsion spring in the embodiment is a 70# steel wire, and due to the special shape, the torsion spring has great mechanical energy in a small structural space range, and can generate great acting force on a target object in a short time. In an alternative embodiment, as shown in fig. 1, the non-explosive unlocking device includes four locking and releasing members disposed at four corners of the substrate, so as to achieve a stable locking of the second member.
Referring to fig. 1 to 7, an embodiment of the present invention further provides a locking and unlocking method for a non-explosive unlocking device, including the following steps:
step 1: fixing at least two locking release components 4 and a hot knife assembly 3 on a first component, wherein the hot knife assembly 3 comprises a hot knife and a hot knife installation part, the hot knife installation part is made of heat insulation materials, and the hot knife is arranged in the hot knife installation part;
step 2: placing a second part 100 between the at least two locking and releasing parts 4, arranging a fastening rope 2 around the second part 100, providing a tightening force for the locking and releasing parts 4 to enable the locking and releasing parts 4 to be in a first state to lock the second part 100, and when the fastening rope 2 is arranged, penetrating through the hot knife mounting part and clinging to the hot knife;
and step 3: when the locking and unlocking device is released, the hot knife is electrified, the hot knife generates heat to fuse the fastening rope 2, the locking and releasing component 4 returns to the second state to release the second component 100, and unlocking is achieved.
In an optional embodiment, the hot knife mounting portion is provided with a hot knife mounting hole and a rope threading hole, the hot knife mounting hole intersects with the rope threading hole and is communicated with the rope threading hole at the intersection, the hot knife 303 is arranged in the hot knife mounting hole, and the fastening rope 2 passes through the rope threading hole and is tightly attached to the hot knife 303.
In an alternative embodiment, said positioning of a fastening cord 2 around said second element 100 comprises:
the first end of the fastening rope 2 is first fixed and tension is provided to the second end of the fastening rope 2 by means of a rope tightening device 6.
In an alternative embodiment, the rope tightening device 6 includes a buckle 601, a buckle fixing portion 602, and a buckle positioning portion 603, the buckle positioning portion 603 and the buckle fixing portion 602 are both fixed on the first component, a first through hole is formed on the buckle 601, a first end of the buckle 601 is fitted into the buckle positioning portion 603, a second end of the buckle 601 is rotatably connected to the buckle fixing portion 602, and the providing of the tightening force to the second end of the fastening rope 2 by the rope tightening device includes: when the buckle 601 is far away from the buckle positioning portion 603, the second end of the fastening rope 2 is passed through the first through hole and fixed, and the buckle 601 is rotated to make the first end of the buckle 601 cooperate with the buckle positioning portion 603 to lock the buckle position, so as to provide tension to the fastening rope 2 through the second end.
In an alternative embodiment, the first end of the fastening rope 2 is fixed by a rope pretensioning device 5, and after the rope tightening device 6 provides tension to the fastening rope 2, tension is provided to the fastening rope 2 from the first end of the fastening rope 2 by the rope pretensioning device 5.
In an optional embodiment, the rope pre-tightening device 5 includes a sliding block 502, a sliding rail 503, an upright plate 504, a locking bolt 501, and a locking nut 505, a second through hole and a locking through hole are provided on the sliding block 502, one end of the pre-tightening bolt is fixed on the upright plate 504, the other end of the pre-tightening bolt passes through the locking through hole, a first end of the fastening rope 2 passes through the second through hole and is fixed in a position opposite to the sliding block 502, after the rope tightening device 6 provides a tightening force for the fastening rope 2, the locking nut 505 is screwed to cooperate with the locking bolt 501 to push the sliding block 502 to slide along the sliding rail 503, and the tightening force is provided for the fastening rope 2 through the first end of the fastening rope 2.
In an alternative embodiment, other components than the fastening cord 2 are secured to the first member by the base plate 1.
In an optional embodiment, the substrate 1 is made of a magnesium alloy material, and a surface of the substrate 1 contacting the first component and a surface of the substrate 1 contacting the second component 100 are coated with conductive coatings.
In an alternative embodiment, the other surface of the substrate 1 is coated with a thermal barrier coating.
In an alternative embodiment, the hot blade 303 has a cylindrical structure.
In an optional embodiment, the hot blade 303 includes a hot blade body, a metal lead (not shown in the figure), and a wire 3032, the hot blade body includes a housing 3031, a heating wire (not shown in the figure) and an insulating filler 3033, the housing 3031 is made of stainless steel, the heating wire is disposed in the housing 3031, the insulating filler 3033 is filled in a cavity of the housing 3031, a first end of the wire 3032 is connected to the heating wire through the metal lead, and a second end of the wire 3032 is used for being connected to a power supply. In an optional embodiment, the wire is a special insulation shielding wire for a C550124-24 type spacecraft. In an optional embodiment, the heating wire is a Cr20Ni80 electrothermal alloy wire. The electric heating element adopted by the invention can be repeatedly heated for 1000h at 1200 ℃, and after the electric heating element works, the energy is provided for the hot knife assembly through a 28V loop, the hot knife fuses the fastening rope within 2min of power supply, and the unlocking time is reliable. In an alternative embodiment, the device comprises two groups of hot knife assemblies, and the two groups of hot knife assemblies are mutually redundant, so that the reliability of separation is ensured. In an alternative embodiment, the unlocking device further comprises a power supply, preferably a 28V power supply.
In an optional embodiment, the hot knife mounting portion 301 is provided with a heat insulation block 302 extending in a direction perpendicular to the axial direction of the hot knife, so as to prevent heat generated by the hot knife 303 in the heating process from being transferred to the substrate 1, to scald the heat insulation coating of the substrate 1, and to transfer heat generated by the hot knife 303 to the surface of the fastening rope 2 to the maximum extent, thereby improving the working efficiency of the non-explosive unlocking device.
In an alternative embodiment, the hot knife mounting portion is a high temperature alumina structural ceramic material, preferably an A-series alumina heat resistant ceramic such as A-99, A-97, A-98, and the like.
In an alternative embodiment, the fastening rope 2 is a UHMWPE rope or a multistrand cotton rope.
In an alternative embodiment, as shown in fig. 7, the locking and releasing member 4 includes a fixing shaft 403, an elastic member 402 and a claw 401, the claw 401 is an L-shaped structure, one end of the claw is fixed by the fixing shaft 403, the elastic member 402 is used for compressing when the locking and releasing member 4 is in the first state, and the claw is driven to rotate along the fixing shaft to return to the second state after the fastening rope 2 is fused, in the embodiment of the present invention, the elastic member is a torsion spring. When the fastening rope 2 is arranged, the fastening rope 2 is pressed on the bent part of the claw 401 to provide a tightening force for the claw 401 to lock the second component 100, and after the fastening rope 2 is fused, the claw 401 rebounds under the action of the resilience force of the torsion spring to release the second component 100.
In an alternative embodiment, four of the lock releasing members are provided at four corners of the base plate.
The locking and unlocking method provided by the embodiment of the invention is realized by adopting the locking and unlocking device, and specific description and effects refer to the embodiment of the device, which is not repeated herein.
The above description is only for the best mode of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Those skilled in the art will appreciate that the invention may be practiced without these specific details.
Claims (20)
1. A non-fire work unlocking device is used for locking or unlocking and releasing a first component and a second component and is characterized by comprising a fastening rope, a hot knife assembly and at least two locking and releasing components, wherein the locking and releasing components are fixed on the first component, the fastening rope is used for providing tightening force for the locking and releasing components to enable the locking and releasing components to be in a first state to lock the second component, the hot knife assembly comprises a hot knife and a hot knife mounting portion, the hot knife mounting portion is made of heat insulation materials, the hot knife is arranged in the hot knife mounting portion, the fastening rope is partially attached to the hot knife, the hot knife is an electric heating element and used for generating heat to fuse the fastening rope, and the locking and releasing components return to a second state to release the second component;
the hot knife mounting part is provided with a hot knife mounting hole and a rope threading hole, the hot knife mounting hole is intersected with the rope threading hole and communicated with the rope threading hole at the intersection, the hot knife is arranged in the hot knife mounting hole, and the fastening rope passes through the rope threading hole and is tightly attached to the hot knife;
the first end of the fastening rope is fixed, and the rope tightening device is used for providing a tightening force for the fastening rope through the second end of the fastening rope so that the fastening rope is tightened to generate the tightening force;
the rope tightening device comprises a buckle, a buckle fixing part and a buckle positioning part, the buckle positioning part and the buckle fixing part are both fixed on the first component, a first through hole is formed in the buckle, the first end of the buckle is used for being matched with the buckle positioning part to lock the position of the buckle, the second end of the buckle is rotatably connected with the buckle fixing part, the second end of the fastening rope penetrates through the first through hole and is fixed when the buckle is far away from the buckle positioning part, and after the fastening rope is fixed, the first end of the buckle is matched with the buckle positioning part to lock the position of the buckle to provide tightening force for the fastening rope;
the rope pre-tightening device is used for fixing the first end of the fastening rope and providing tension for the fastening rope through the first end of the fastening rope after the rope tightening device provides tension for the fastening rope;
the rope pre-tightening device comprises a sliding block, a sliding rail, a vertical plate, a locking bolt and a locking nut, a second through hole and a locking through hole are formed in the sliding block, one end of the locking bolt is fixed on the vertical plate, the other end of the locking bolt penetrates through the locking through hole, the first end of the fastening rope penetrates through the second through hole and is fixed relative to the sliding block, and the locking nut and the locking bolt are matched to push the sliding block to slide along the sliding rail so as to provide a tightening force for the fastening rope through the first end of the fastening rope;
the hot knife comprises a hot knife body, a metal lead and a lead, wherein the hot knife body comprises a shell, an electric heating wire and an insulating filler, the shell is made of stainless steel, the electric heating wire is arranged in the shell, the insulating filler is filled in a cavity of the shell, a first end of the lead is connected with the electric heating wire through the metal lead, and a second end of the lead is used for being connected with a power supply;
the hot knife mounting part is made of an alumina structure ceramic material;
the fastening rope is an UHMWPE rope or a multi-strand cotton rope;
the locking and releasing component comprises a fixed shaft, an elastic piece and a clamping jaw, the clamping jaw is fixed through the fixed shaft, the elastic piece is used for compressing when the locking and releasing component is in the first state, and the clamping jaw is driven to rotate along the fixed shaft to return to the second state after the fastening rope is fused.
2. A non-pyrotechnic unlocking device in accordance with claim 1 further comprising a base plate for securing components other than the securing cord, the base plate being fixedly connected to the first member.
3. The non-pyrotechnic unlocking device as claimed in claim 2, wherein the base plate is made of magnesium alloy, and the surface of the base plate, which is in contact with the first component, and the surface of the base plate, which is in contact with the second component, are coated with conductive coatings.
4. A non-pyrotechnic unlocking device in accordance with claim 3 wherein the other surface of the base plate is coated with a thermal barrier coating.
5. The non-pyrotechnic unlocking device of claim 1 wherein the hot knife is of cylindrical configuration.
6. A non-pyrotechnic unlocking device in accordance with claim 1 or 5 wherein the conductive wire is a C550124-24 insulated shielded conductive wire.
7. The non-pyrotechnic unlocking device as claimed in claim 1 or 5, wherein the heating wire is Cr20Ni80 electrothermal alloy wire.
8. A non-pyrotechnic unlocking device as claimed in claim 1 wherein the hot knife mounting portion is provided with a heat insulating block extending perpendicularly to the axial direction of the hot knife.
9. A non-pyrotechnic unlocking device as claimed in claim 1, 5 or 8 comprising two sets of hot knife assemblies.
10. A non-pyrotechnic unlocking device in accordance with claim 2 including four of the lock release members disposed at the four corners of the base plate.
11. A locking and unlocking method of a non-explosive unlocking device is characterized by comprising the following steps:
fixing at least two locking release components and a hot knife assembly on a first component, wherein the hot knife assembly comprises a hot knife and a hot knife installation part, the hot knife installation part is made of heat insulation materials, and the hot knife is arranged in the hot knife installation part;
placing a second part between the at least two locking and releasing parts, arranging a fastening rope to provide a tightening force for the locking and releasing parts so that the locking and releasing parts are in a first state to lock the second part, and when the fastening rope is arranged, penetrating through the hot knife mounting part and partially clinging to the hot knife;
when the locking and releasing component is released, the hot knife is electrified, the hot knife generates heat to fuse the fastening rope, so that the locking and releasing component returns to the second state to release the second component, and unlocking is realized;
the hot knife mounting part is provided with a hot knife mounting hole and a rope threading hole, the hot knife mounting hole is intersected with the rope threading hole and communicated with the rope threading hole at the intersection, the hot knife is arranged in the hot knife mounting hole, and the fastening rope passes through the rope threading hole and is tightly attached to the hot knife;
disposing a fastening cord around the second component, comprising:
fixing the first end of the fastening rope, and providing tension force for the second end of the fastening rope through a rope tightening device to enable the fastening rope to be tightened to generate the tightening force;
the rope tightening device comprises a buckle, a buckle fixing part and a buckle positioning part, the buckle positioning part and the buckle fixing part are both fixed on the first component, a first through hole is formed in the buckle, the first end of the buckle is matched with the buckle positioning part, the second end of the buckle is rotatably connected with the buckle fixing part, and the rope tightening device provides tightening force for the second end of the fastening rope, and the rope tightening device comprises: when the buckle is far away from the buckle positioning part, the second end of the fastening rope passes through the first through hole and is fixed, and the buckle is rotated to enable the first end of the buckle to be matched with the buckle positioning part to lock the buckle position, so that the fastening rope is provided with tension through the second end;
fixing a first end of the fastening rope by a rope pretensioning device, and providing tension to the fastening rope from the first end of the fastening rope by the rope pretensioning device after the rope tightening device provides tension to the fastening rope;
the rope pre-tightening device comprises a sliding block, a sliding rail, a vertical plate, a locking bolt and a locking nut, a second through hole and a locking through hole are formed in the sliding block, one end of the locking bolt is fixed on the vertical plate, the other end of the locking bolt penetrates through the locking through hole, the first end of the fastening rope penetrates through the second through hole and is fixed relative to the sliding block, after the rope tightening device provides a tightening force for the fastening rope, the locking nut is screwed to be matched with the locking bolt to push the sliding block to slide along the sliding rail, and the tightening force is provided for the fastening rope through the first end of the fastening rope;
the hot knife comprises a hot knife body, a metal lead and a lead, wherein the hot knife body comprises a shell, an electric heating wire and an insulating filler, the shell is made of stainless steel, the electric heating wire is arranged in the shell, the insulating filler is filled in a cavity of the shell, a first end of the lead is connected with the electric heating wire through the metal lead, and a second end of the lead is used for being connected with a power supply;
the fastening rope is an UHMWPE rope or a multi-strand cotton rope;
the locking and releasing component comprises a fixed shaft, an elastic piece and a clamping jaw, the clamping jaw is fixed by the fixed shaft and provides a tightening force to compress the elastic piece, the locking and releasing component is in a first state, and after the fastening rope is fused, the elastic piece drives the clamping jaw to rotate along the fixed shaft to return to a second state;
the hot knife installation part is made of an alumina structure ceramic material.
12. The method of claim 11, further comprising securing components other than the securing cord to the first member via a base plate.
13. The method of claim 12, wherein the substrate is made of a magnesium alloy material, and a conductive coating is coated on a surface of the substrate contacting the first component and a surface of the substrate contacting the second component.
14. The method of claim 13, wherein the other surface of the substrate is coated with a thermal barrier coating.
15. The method of claim 11, wherein the hot knife is a cylindrical structure.
16. The method of claim 11 or 15, wherein the conductive wire is a C550124-24 type insulated shielding wire.
17. The method of claim 11 or 15, wherein the heating wire is Cr20Ni80 alloy wire.
18. The method of claim 11, wherein the thermal knife mounting portion is provided with a thermal block extending in a direction perpendicular to an axial direction of the thermal knife.
19. A method of locking and unlocking a non-pyrotechnic unlocking device in accordance with claim 11, 15 or 18 which comprises two sets of hot knife assemblies.
20. The method of claim 12, further comprising four of the lock release members disposed at four corners of the base plate.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811057817.7A CN109229431B (en) | 2018-09-11 | 2018-09-11 | Non-explosive unlocking device and locking and unlocking method |
| RU2019133226A RU2736791C1 (en) | 2018-09-11 | 2018-09-27 | Non-pyrotechnical detachment device and method of operation thereof |
| PCT/CN2018/107784 WO2020051949A1 (en) | 2018-09-11 | 2018-09-27 | Non-pyrotechnical unlocking apparatus and locking/unlocking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811057817.7A CN109229431B (en) | 2018-09-11 | 2018-09-11 | Non-explosive unlocking device and locking and unlocking method |
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| Publication Number | Publication Date |
|---|---|
| CN109229431A CN109229431A (en) | 2019-01-18 |
| CN109229431B true CN109229431B (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811057817.7A Active CN109229431B (en) | 2018-09-11 | 2018-09-11 | Non-explosive unlocking device and locking and unlocking method |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN109229431B (en) |
| RU (1) | RU2736791C1 (en) |
| WO (1) | WO2020051949A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112373731B (en) * | 2020-10-29 | 2022-04-08 | 上海航天控制技术研究所 | A linkage that is used for adopting novel electrothermal fuse unlocking device of spacecraft |
| CN112340067B (en) * | 2020-11-06 | 2022-04-15 | 长光卫星技术股份有限公司 | Be applied to hot sword structure of receiving satellite adjustable resistance a little |
| CN112340068B (en) * | 2020-11-06 | 2022-04-15 | 长光卫星技术股份有限公司 | Solar sailboard unfolding system based on hot knife |
| CN113086254B (en) * | 2021-04-14 | 2022-09-02 | 电子科技大学 | Simple unlocking device for aviation environment |
| CN113184227B (en) * | 2021-04-22 | 2022-07-26 | 上海宇航***工程研究所 | Passive space locking and releasing device |
| CN113104239B (en) * | 2021-04-23 | 2024-03-22 | 中国科学院微小卫星创新研究院 | Hot cutting unlocking device and installation unlocking method |
| CN113071719B (en) * | 2021-04-30 | 2023-02-03 | 北京吾天科技有限公司 | Double-hot-cutter type compression and release mechanism |
| CN114180109B (en) * | 2021-12-09 | 2024-04-16 | 上海宇航***工程研究所 | Impact relieving device based on particle damping |
| CN116788525B (en) * | 2022-11-23 | 2024-05-14 | 深圳市魔方卫星科技有限公司 | Flexible compression release device and use method |
| CN116767518B (en) * | 2023-08-25 | 2023-11-17 | 天津航天机电设备研究所 | Effective load cabin body connection unlocking mechanism with unlocking gap |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5361676A (en) * | 1993-07-19 | 1994-11-08 | Gibbs Jerry L | Explosively-separable fastener with umbilical cord cutter |
| DE19843965C2 (en) * | 1998-09-24 | 2000-07-13 | Daimler Chrysler Ag | Hold and release mechanism with a shape memory actuator |
| CN105674813B (en) * | 2014-11-19 | 2017-11-21 | 中国科学院沈阳自动化研究所 | A kind of hot blade hook lock separating mechanism |
| CN204452958U (en) * | 2015-02-04 | 2015-07-08 | 浙江大学 | Light-duty without impacting the hot blade locking releasing device that can reuse |
| CN205034356U (en) * | 2015-09-09 | 2016-02-17 | 北京空间飞行器总体设计部 | A simple and easy manual hold -down mechanism that is used for sun wing boxboard assembly |
| CN106005489A (en) * | 2016-06-21 | 2016-10-12 | 上海航天测控通信研究所 | Ultra-light pressing and releasing device |
| CN106584599B (en) * | 2016-12-06 | 2018-09-28 | 山东航天电子技术研究所 | A kind of thermal cutting formula cable separation arrangement |
| CN106628274B (en) * | 2017-01-23 | 2021-07-09 | 浙江大学 | Universal locking and separating device for cuboids |
| CN207303840U (en) * | 2017-10-23 | 2018-05-01 | 山东菲达电力电缆股份有限公司 | A kind of power cable installation tensioning apparatus |
-
2018
- 2018-09-11 CN CN201811057817.7A patent/CN109229431B/en active Active
- 2018-09-27 RU RU2019133226A patent/RU2736791C1/en active
- 2018-09-27 WO PCT/CN2018/107784 patent/WO2020051949A1/en active Application Filing
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| CN109229431A (en) | 2019-01-18 |
| RU2736791C1 (en) | 2020-11-20 |
| WO2020051949A1 (en) | 2020-03-19 |
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