A linkage type locking and releasing device capable of adapting to thermal deformation of a flexible wing
Through the design of a linked locking and releasing device and the synergistic effect of the pyrotechnic cutter and the spring, the structural complexity, reliability and synchronization problems of the mechanical locking and releasing device are solved, and efficient, low-impact multi-point unlocking synchronization and wide application are achieved.
Patent Information
- Application Number
- CN202411889874.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2044-12-20
AI Technical Summary
Existing mechanical locking and releasing devices have problems such as complex structure, difficulty in ensuring reliability, large magnetic field influence, difficulty in ensuring synchronization and limited application scope.
A linkage locking and releasing device that can adapt to the thermal deformation of the missile wings is adopted. Through the combination of centralized compression and release mechanism, linkage locking and release mechanism and drive mechanism, and the synergistic effect of pyrotechnic cutter and spring is utilized to achieve multi-point unlocking synchronization and flexible structural layout.
The invention reduces the impact, improves the synchronization, reduces the power consumption, enhances the environmental adaptability and the application scope, and overcomes the shortcomings of the prior art.
Smart Images

Figure CN119705878B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of unlocking and separating, and in particular relates to a linkage type locking and releasing device that can adapt to thermal deformation of a bomb wing. Background Art
[0002] Locking and release technologies are widely used in the aerospace industry. They play a crucial role in the design and launch of aerospace vehicles. Locking technology is key to ensuring vehicle stability during launch and flight. Common locking technologies include mechanical locking, memory alloy locking, and electromagnetic locking. Release technology is key to ensuring reliable separation of the active and passive ends. Key technologies include explosive bolt release, explosive cord release, and point-type connection release devices.
[0003] Aerospace products require compression and release mechanisms to resist mechanical environmental impact and unlock in space, such as for the separation of launch vehicles and payloads, and the coordinated deployment of large solar panels and other accessories on satellites. Currently, most aerospace locking and release mechanisms are pyrotechnic devices. However, these devices present significant impacts, are difficult to verify for reliability, are single-use, and pose contamination risks. As space exploration and research continues, higher requirements are being placed on the reliability, safety, synchronization, and separation impact of connection and separation mechanisms. Consequently, there is an urgent need for new connection and separation mechanisms.
[0004] Mechanical locking and releasing mechanisms are an important alternative to pyrotechnic devices. Currently, most unlocking mechanisms use electromagnetic and shape memory alloy wires as the driving source to unlock them. They are characterized by low impact, recyclability, low pollution, short unlocking time, and verifiable reliability, which can fully compensate for the shortcomings of pyrotechnic devices during use. As a new type of unlocking and releasing device, mechanical locking and releasing devices have the advantages of repeatability, low impact, and low energy consumption. However, they also have major disadvantages:
[0005] 1) The unlocking structure of the electromagnetic drive source is mostly complex and its reliability is difficult to guarantee;
[0006] 2) The magnetic field generated by the electromagnetic drive source has a significant impact on the space environment, limiting its scope of application;
[0007] 3) It is difficult to ensure the synchronization of multiple single-point unlocking devices; Summary of the Invention
[0008] In view of this, in order to solve the technical problems existing in the mechanical locking and releasing mechanism mentioned in the above background technology, the present invention proposes a linkage locking and releasing device that can adapt to the thermal deformation of the wings.
[0009] To achieve the above objectives, the present invention adopts the following technical solutions: a linked locking and releasing device that can adapt to thermal deformation of a wing, comprising a centralized compression and release mechanism, a linked locking and releasing mechanism, a driving mechanism, and a main linkage rope; one end of the main linkage rope is connected to the centralized compression and release mechanism using a crimping terminal, and the other end is connected to the driving mechanism; the linked locking and releasing mechanism includes a plurality of single-point locking and releasing mechanisms connected in series, each of which is compressed against the main linkage rope via a secondary linkage rope;
[0010] When unlocking is required, the centralized compression release mechanism is unlocked, and the crimped main linkage rope is released. The main linkage rope moves under the action of the driving mechanism, and during the movement, it drives the secondary linkage rope of the linkage locking and releasing mechanism, thereby completing the unlocking of the linkage locking and releasing mechanism.
[0011] Furthermore, the centralized compression release mechanism for pyrotechnic unlocking includes a pyrotechnic cutter, a loading nut, a ball pad, a pressure block, an auxiliary seat, a mounting seat and a cutting rod. The mounting seat is fixed with an auxiliary seat, and the thin loading end of the cutting rod passes through the mounting seat, the cutting hole cavity of the pyrotechnic cutter and the auxiliary seat in sequence, and then passes through the pressure block, the ball pad and the loading nut in sequence.
[0012] Furthermore, the centralized compression and release mechanism for pyrotechnic unlocking also includes a capture cap, a pin, a pin, a ball head and a spring. Two pins are screwed into the upper end of the auxiliary seat, and the spring is sleeved onto the outside of the pin. The ball head and the pin are connected by threads. The ball head is accommodated in the cavity at the interface between the auxiliary seat and the pressure block. The cavity is provided with an inclined surface to facilitate the rapid removal of the ball head when unlocking. After loading is completed, the capture cap is installed on the auxiliary seat using screws.
[0013] Furthermore, when the centralized compression release mechanism is locked, the cutting rod is fixed to the fixed end through a thread, and the loading nut, ball pad, pressure block, and auxiliary seat constitute a constraint system. Under the action of the constraint system, the spring is compressed, and the pressure block and the auxiliary seat form a complete cavity structure, so that the ball head connected by the pin is accommodated in the cavity of the pressure block and the auxiliary seat, and the locking function is realized by loading the loading nut.
[0014] Furthermore, when the centralized compression release mechanism is unlocked, an electrical signal is sent, the pyrotechnic cutter works, the cutting rod is disconnected, and the active end and the passive end are released. At the same time, the loading nut, ball pad, and pressure block are separated from the auxiliary seat under the combined action of the preload force and the spring. At the same time, the ball head connected by the pin is disengaged from the cavity of the pressure block and the auxiliary seat under the action of external force, completing the unlocking and release of the centralized point.
[0015] Further, the single-point locking release mechanism comprises a fixed rod, a movable rod, a coil spring, a plug, a pin shaft, a compression spring, a sliding block, a loading nut, a ball pad, a support seat, a reversing block, a secondary linkage rope, a hanging pin, a fixed pin and a fixed nut. The compression spring and the plug are sequentially sleeved outside the pin shaft, the optical axis end of the pin shaft penetrates into the threaded hole of the movable rod, the plug is screwed into the movable rod, the fixed rod penetrates through the ring at the end of the coil spring and is fixed through the threaded hole of the movable rod, the fixed rod and the movable rod are spliced through the screw thread, the coil spring is wound around the fixed rod and the movable rod by a tool, after winding to the end, the ring structure of the coil spring is hooked on the optical axis end of the pin shaft, under the action of the compression spring, the pin shaft is prevented from being triggered by mistake, the screw thread end of the movable rod penetrates through the top circular hole of the support seat, the sliding block and the gasket are sequentially penetrated through the movable rod, the second loading nut is screwed into the screw thread of the movable rod, the secondary linkage rope penetrates through the circular hole of the hanging pin and is crimped, the hanging pin is screwed through the screw thread with the pin shaft, the reversing block is fixed on the side surface of the support seat, the fixed surface and the hanging pin are in the same direction, the support seat is fixed on the locking structure by using a screw, the fixed nut is screwed into the fixed rod, the fixed rod is connected with the fixed end and the fixed end is fastened by using the fixed nut, and the locking connection is completed.
[0016] Further, when the linkage locking release mechanism is locked, one end of the coil spring is fixed on the movable rod through the fixed pin, the other end is hooked on the pin shaft by winding, the movable rod is penetrated through the top circular hole of the support seat, the sliding block and the ball pad are sequentially stacked, and the second loading nut is screwed into the screw rod. The fixed rod is connected with the fixed end and is fastened by using the fixed nut, the second loading nut is loaded by using a loading tool, and the compression connection between the fixed end and the locking end is completed.
[0017] Further, when the linkage locking release mechanism is unlocked, the secondary linkage rope is pulled to drive the hanging pin and the pin shaft to slide radially, the constraint on the coil spring in all directions is released, the coil spring is released by rotating around the movable rod and the fixed rod under the action of the self-restoring force, and the active end and the passive end are separated by the interaction force between the screw thread contact surfaces of the movable rod and the fixed rod.
[0018] Furthermore, when the linkage locking release device that can adapt to thermal deformation of the wing is in a locked state, the cutting rod is installed at the fixed end, and a constraint system is formed by the No. 1 loading nut, the ball pad, the pressure block and the auxiliary seat, and the ball head connected by the pin is accommodated in the cavity of the pressure block and the auxiliary seat, and the No. 1 loading nut is loaded to complete the compression connection of the centralized compression point, and the fixed rod in the linkage locking release mechanism is installed to the fixed end, and a constraint system is formed by the fixed pin, the coil spring and the pin shaft, and the fixed rod and the movable rod are assembled into a complete cylindrical structure, the support seat is connected to the fixed end and passes through the movable rod, the slider, the ball pad and the No. 2 loading nut are successively inserted from the top of the movable rod and apply torque to complete the connection of the locking point, one end of the main linkage rope is connected to the pin of the centralized compression release mechanism, and the other end of the main linkage rope is connected to the driving mechanism, and the secondary linkage rope in the linkage locking release mechanism distributed in the middle of the main linkage rope is connected to the main linkage rope by crimping to complete the locking connection of the entire set of linkage locking release devices.
[0019] Furthermore, when the linkage locking release device that can adapt to the thermal deformation of the wing is in the unlocked state, an electrical signal is sent, the pyrotechnic cutter works, the cutting rod is broken, and the fixed end and the passive end of the concentrated compression point are unlocked and separated. At the same time, under the action of the spring, the No. 1 loading nut, the ball pad, and the pressure block move axially. Under the action of the driving mechanism, the pin and the ball head quickly disengage from the cavity of the pressure block and the auxiliary seat, driving the secondary linkage rope in the linkage locking mechanism to move. The secondary linkage rope pulls the hanging pin and the pin shaft to slide, and the end of the pin shaft releases the constraint on the coil spring. The coil spring starts to rotate under the action of the restoring force, and at the same time releases the tightening constraint on the movable rod and the fixed rod. The movable rod and the fixed rod are separated under the action of the screw contact surface, completing the unlocking and separation of the locking point.
[0020] Compared with the prior art, the beneficial effects of the linked locking and releasing device capable of adapting to thermal deformation of the wing of the present invention are:
[0021] 1. The linked locking and releasing mechanism of the present invention uses a coil spring to tighten the load in order to reduce the impact, thereby reducing the structural energy storage and reducing the impact;
[0022] 2. The linked locking and releasing mechanism of the present invention improves synchronization and reduces unlocking synchronization to millisecond level;
[0023] 3. The present invention adopts a single-point unlocking to drive multiple-point unlocking and release, realizing the flexibility and diversification of the structural layout;
[0024] 4. The present invention reduces the power consumption of the unlocker, enhances the environmental adaptability, and expands the application range of the locker. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification. The illustrations are shown in the drawings, wherein:
[0026] Figure 1 The top view of the linkage locking release device for the thermal deformation of the missile wing according to the present application;
[0027] Figure 2 The front view of the linkage locking release device for the thermal deformation of the missile wing according to the present application;
[0028] Figure 3 The isometric view of the centralized compression release mechanism according to the present application; Figure 1 ;
[0029] Figure 4 The isometric view of the centralized compression release mechanism according to the present application; Figure 2 ;
[0030] Figure 5 The structural schematic diagram of the linkage locking release mechanism according to the present application;
[0031] In the figure: 1 centralized compression release mechanism, 2 single-point linkage locking release mechanism, 3 driving mechanism, 4 main linkage rope, 1-1 pyrotechnic cutter, 1-2 capture cap, 1-3 No. 1 loading nut, 1-4 pin column, 1-5 ball pad, 1-6 compression block, 1-7 pin, 1-8 ball head, 1-9 auxiliary seat, 1-10 mounting seat, 1-11 fixed screw, 1-12 cutting-off rod, 1-13 spring, 2-1 fixed rod, 2-2 movable rod, 2-3 coil spring, 2-4 screw plug, 2-5 pin shaft, 2-6 compression spring, 2-7 sliding block, 2-8 No. 2 loading nut, 2-9 gasket, 2-10 support seat, 2-11 reversing block, 2-12 auxiliary linkage rope, 2-13 hanging pin, 2-14 fixed pin, 2-15 fixed nut. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the present application, but not all the embodiments.
[0033] Reference Figure 1-5 The present embodiment is described, a linkage locking release device for the thermal deformation of the missile wing, comprising a centralized compression release mechanism 1, a linkage locking release mechanism, a driving mechanism 3 and a main linkage rope 4;
[0034] Locking state: One end of the main linkage rope 4 is connected to the centralized compression and release mechanism 1 by using a crimping terminal, and the other end is connected to the driving mechanism 3. The linkage locking and release mechanism includes multiple single-point locking and release mechanisms 2 connected in series, and each single-point locking and release mechanism 2 is respectively compressed with the main linkage rope 4 through the secondary linkage rope 2-12.
[0035] Unlocked state: The centralized compression release mechanism 1 is unlocked, and the crimped main linkage rope 4 is released. The main linkage rope 4 starts to move in a specific direction under the action of the driving mechanism 1. During the movement, it drives the auxiliary linkage ropes 2-12 of multiple series-connected single-point locking and releasing mechanisms 2, thereby completing the unlocking of the linkage locking and releasing mechanism.
[0036] The centralized compression release mechanism 1 for pyrotechnic unlocking primarily comprises a pyrotechnic cutter 1-1, a capture cap 1-2, a No. 1 loading nut 1-3, a pin 1-4, a ball washer 1-5, a pressure block 1-6, a pin 1-7, a ball head 1-8, an auxiliary seat 1-9, a mounting seat 1-10, a fixing screw 1-11, a shear rod 1-12, and a spring 1-13. The mounting seat 1-10, auxiliary seat 1-9, pressure block 1-6, ball head 1-8, ball washer 1-5, No. 1 loading nut 1-3, and shear rod 1-12 are load-bearing structural components, which are connected in sequence from bottom to top to form the complete load-bearing structure.
[0037] The cutting part of the pyrotechnic cutter 1-1 passes through the horizontal circular hole of the auxiliary seat 1-9, and the two are fixed to the mounting seat 1-10 at the same time using fixing screws. Two pins 1-4 are screwed into the upper end of the auxiliary seat 1-9, and the compression springs 1-13 are respectively inserted into the outside of the pins 1-4. The thin loading end of the cutting rod 1-12 passes through the through hole of the mounting seat, the hole cavity of the cutting part of the pyrotechnic cutter, and the vertical circular hole of the auxiliary seat from the bottom of the mounting seat 1-10. Then, the pressure block 1-6, ball pad 1-5, and No. 1 loading nut 1-3 are successively inserted into the cutting rod 1-12, and the No. 1 loading nut 1-3 is screwed into the thin loading end of the cutting rod 1-12. The No. 1 loading nut 1-3 is rotated using a loading tool. Under the action of the nut squeezing, the ball pad 1-5 and the pressure block 1-6 move axially along the cutting rod 1-12. The movement of the pressure block 1-6 causes the compression spring outside the pin 1-4 to be accommodated in the cavity of the pressure block 1-6 and the auxiliary seat 1-9. The ball head 1-8 is connected to the pin 1-7 via a threaded connection. The ball head 1-8 is housed in a cavity between the auxiliary seat 1-9 and the pressure block 1-6. The cavity is provided with an inclined surface to facilitate the quick removal of the ball head when unlocking. After loading is completed, the capture cap 1-2 is installed on the auxiliary seat 1-9 using screws.
[0038] When the centralized compression release mechanism 1 is locked, the cutting rod 1-12 is fixed to the fixed end through a thread, and the No. 1 loading nut 1-3, the ball pad 1-5, the pressure block 1-6, and the auxiliary seat 1-9 constitute a constraint system. Under the action of the constraint system, the spring 1-13 is compressed, and the pressure block 1-6 and the auxiliary seat 1-9 form a complete cavity structure, so that the ball head 1-8 connected by the pin 1-7 is accommodated in the cavity of the pressure block and the auxiliary seat 1-9, and the locking function is realized by loading the No. 1 loading nut 1-3.
[0039] When the centralized clamping and releasing mechanism 1 is unlocked, an electrical signal is sent, the pyrotechnic cutter 1-1 works, the cutting rod 1-12 is disconnected, and the active end and the passive end are released. At the same time, the No. 1 loading nut 1-3, the ball pad 1-5, and the pressure block 1-6 are separated from the auxiliary seat 1-9 under the joint action of the preload force and the spring 1-13. At the same time, the ball head 1-8 connected to the pin 1-7 can be detached from the cavity of the pressure block 1-6 and the auxiliary seat 1-9 under the action of external force, completing the unlocking and release of the centralized point.
[0040] The technical solution for the linked locking and releasing mechanism is as follows: The single-point locking and releasing mechanism 2 primarily comprises a fixed rod 2-1, a movable rod 2-2, a coil spring 2-3, a screw plug 2-4, a pin 2-5, a compression spring 2-6, a slider 2-7, a second loading nut 2-8, a washer 2-9, a support base 2-10, a reversing block 2-11, a secondary linkage rope 2-12, a hook pin 2-13, a fixed pin 2-14, and a fixed nut 2-15. The compression spring 2-6 and screw plug 2-4 are sequentially inserted into the pin 2-5. The bare end of the pin 2-5 is inserted into the threaded hole of the movable rod 2-2, and the screw plug 2-4 is screwed into the movable rod 2-2. The fixed rod 2-1 is inserted through the small ring at the end of the coil spring 2-3 and secured through the threaded hole of the movable rod 2-2. The fixed rod 2-1 and the movable rod 2-2 are spliced together by screw threads, and the coil spring 2-3 is driven by the tooling to wind around the fixed rod 2-1 and the movable rod 2-2. After winding to the end, the small ring structure of the coil spring 2-3 is hooked on the optical axis end of the pin shaft 2-5. Under the action of the compression spring 2-6, the pin shaft 2-5 is prevented from being accidentally triggered and causing mislocking, so that the fixed rod 2-1 and the movable rod 2-2 form a complete cylindrical load-bearing structure.
[0041] The threaded end of the movable rod 2-2 passes through the top circular hole of the support seat 2-10, and the slider 2-7 and the gasket 2-9 pass through the movable rod 2-2 in sequence. The No. 2 loading nut 2-8 is screwed into the thread of the movable rod 2-2. The arc-shaped slider 2-7 can advantageously adapt to the thermal deformation of the structure under heat conditions. The secondary linkage rope 2-12 passes through the circular hole of the hanging pin 2-13 and is crimped. The hanging pin 2-13 is screwed together with the pin shaft 2-5 through a thread. The reversing block 2-11 is fixed to the side of the support seat 2-10 by screws, and the fixed surface and the hanging pin 2-13 face the same direction. The support seat 2-10 is fixed to the locking structure with screws, and the fixing nut 2-15 is screwed into the fixed rod 2-1. The fixed rod 2-1 passes through the locking end to connect with the fixed end and is tightened with the fixing nut 2-15 to complete the locking connection.
[0042] The interlocking locking release mechanism is locked: One end of coil spring 2-3 is secured to movable rod 2-2 via fixed pin 2-14, and the other end is hooked onto pin 2-5 via a winding hook. The fixed rod 2-1 and movable rod 2-2 are assembled into a complete cylindrical structure. The movable rod 2-2 is inserted through the circular hole at the top of the support base 2-10. The slider 2-7 and gasket 2-9 are stacked in this order, and the second loading nut 2-8 is screwed into the threaded rod. The fixed rod 2-1 is connected to the fixed end and tightened with the fixed nut 2-15. The loading fixture is used to load the second loading nut 2-8, completing the compression connection between the fixed and locking ends.
[0043] Unlocking the linkage lock release mechanism: Pulling the secondary linkage rope 2-12 causes the hook pin 2-13 and the pin shaft 2-5 to slide radially, releasing the constraints on the coil spring 2-3 in all directions. The coil spring 2-3, under the action of its own restoring force, rotates around the movable rod 2-2 and the fixed rod 2-1 to release. Simultaneously, the movable rod 2-2 and the fixed rod 2-1 disengage under the interaction of the threaded contact surface, completing the unlocking and separation of the active and passive ends.
[0044] The overall locking state of the linkage locking and releasing device that can adapt to the thermal deformation of the wing described in the present invention; the cutting rod 1-12 is installed at the fixed end, and a constraint system is formed by the No. 1 loading nut 1-3, the ball pad 1-5, the pressure block 1-6, and the auxiliary seat 1-9. The ball head 1-8 connected with the pin 1-7 is accommodated in the cavity of the pressure block 1-6 and the auxiliary seat 1-9, and loaded by the No. 1 loading nut 1-3 to complete the compression connection of the concentrated compression point. The fixed rod 2-1 in the linkage locking and releasing mechanism is installed to the fixed end, and a constraint system is formed by the fixed pin 2-14, the coil spring 2-3, and the pin shaft 2-5. The fixed rod 2-1 and the movable rod 2-2 are assembled to complete the cylindrical structure. The support seat 2-10 is connected to the fixed end and passes through the movable rod 2-2. The slider 2-7, the ball pad 2-9, and the No. 2 loading nut 2-8 are sequentially inserted from the top of the movable rod 2-2 and apply torque to complete the connection of the locking point. One end of the main linkage rope 4 is connected to pins 1-7 of the centralized compression and release mechanism 1, and the other end of the main linkage rope 4 is connected to the drive mechanism 3. The secondary linkage ropes 2-12 of the linkage locking and release mechanism 2, which are distributed between the main linkage rope 4, are crimped to the main linkage rope 4 to complete the locking connection of the entire linkage locking and release device.
[0045] The overall unlocking process of the linkage locking release device that can adapt to the thermal deformation of the wing described in the present invention is as follows: the electrical signal is sent, the pyrotechnic cutter 1-1 works, the cutting rod 1-12 is broken, and the fixed end and the passive end of the concentrated pressing point are unlocked and separated. At the same time, under the action of the spring 1-13, the No. 1 loading nut 1-3, the ball pad 1-5, and the pressure block 1-6 move axially. Under the action of the driving mechanism, the pin 1-7 and the ball head 1-8 quickly disengage from the cavity of the pressure block 1-6 and the auxiliary seat 1-9, driving the secondary linkage rope 2-12 in the linkage locking mechanism to move. The secondary linkage rope 2-12 pulls the hanging pin 2-13 and the pin shaft 2-5 to slide. The end of the pin shaft 2-5 releases the constraint on the coil spring 2-3. The coil spring 2-3 starts to rotate under the action of the restoring force, and at the same time releases the tightening constraint on the movable rod 2-2 and the fixed rod 2-1. The movable rod 2-2 and the fixed rod 2-1 are separated under the action of the screw thread contact surface, completing the unlocking and separation of the locking point.
[0046] The embodiments of the present invention disclosed above are intended only to illustrate the present invention. The embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.
Claims
1. A linkage locking and releasing device that can adapt to the thermal deformation of the wing, characterized by: The invention comprises a centralized pressing and releasing mechanism (1), a linkage locking and releasing mechanism, a driving mechanism (3) and a main linkage rope (4); one end of the main linkage rope (4) is connected to the centralized pressing and releasing mechanism (1) by using a crimping terminal, and the other end is connected to the driving mechanism (3); the linkage locking and releasing mechanism comprises a plurality of single-point locking and releasing mechanisms (2) connected in series, and each single-point locking and releasing mechanism (2) is respectively pressed with the main linkage rope (4) through a secondary linkage rope (2-12); When unlocking is to be performed, the centralized compression release mechanism (1) is unlocked, releasing the compressed main linkage rope (4), and the main linkage rope (4) moves under the action of the driving mechanism (3), and during the movement, drives the auxiliary linkage ropes (2-12) of the plurality of series-connected single-point locking and releasing mechanisms (2), thereby completing the unlocking of the linkage locking and releasing mechanisms; The centralized pressing and releasing mechanism (1) comprises a pyrotechnic cutter (1-1), a No. 1 loading nut (1-3), a ball pad (1-5), a pressing block (1-6), an auxiliary seat (1-9), a mounting seat (1-10), and a cutting rod (1-12); the mounting seat (1-10) is fixed with the auxiliary seat (1-9); the thin loading end of the cutting rod (1-12) sequentially passes through the mounting seat (1-10), the cutting portion cavity of the pyrotechnic cutter (1-1), and the auxiliary seat (1-9), and then sequentially passes through the pressing block (1-6), the ball pad (1-5), and the No. 1 loading nut (1-3); The centralized pressing and releasing mechanism (1) further comprises a capture cap (1-2), a pin (1-4), a pin (1-7), a ball head (1-8) and a spring (1-13); the two pins (1-4) are screwed into the upper end of the auxiliary seat (1-9); the spring (1-13) is inserted into the outside of the pin (1-4); the ball head (1-8) and the pin (1-7) are connected via a thread; the ball head (1-8) is accommodated in a cavity at the interface between the auxiliary seat (1-9) and the pressure block (1-6); an inclined surface is provided in the cavity to facilitate the rapid removal of the ball head when unlocking; after loading is completed, the capture cap (1-2) is mounted on the auxiliary seat (1-9) using screws.
2. The linked locking and releasing device capable of adapting to thermal deformation of the wing according to claim 1, characterized in that: When the centralized compression release mechanism (1) is locked, the cutting rod (1-12) is fixed to the fixed end through a thread, and the No. 1 loading nut (1-3), the ball pad (1-5), the pressure block (1-6), and the auxiliary seat (1-9) constitute a constraint system. Under the action of the constraint system, the spring (1-13) is compressed, and the pressure block (1-6) and the auxiliary seat (1-9) form a complete cavity structure, so that the ball head (1-8) connected by the pin (1-7) is accommodated in the cavity of the pressure block and the auxiliary seat (1-9), and the locking function is achieved by loading the No. 1 loading nut (1-3).
3. The linked locking and releasing device capable of adapting to thermal deformation of the wing according to claim 1, characterized in that: When the centralized pressing and releasing mechanism (1) is unlocked, an electric signal is sent, the pyrotechnic cutter (1-1) works, the cutting rod (1-12) is disconnected, and the active end and the passive end are released. At the same time, the No. 1 loading nut (1-3), the ball pad (1-5), and the pressing block (1-6) are separated from the auxiliary seat (1-9) under the combined action of the preload force and the spring (1-13). At the same time, the ball head (1-8) connected to the pin (1-7) is released from the cavity of the pressing block (1-6) and the auxiliary seat (1-9) under the action of external force, completing the unlocking and release of the centralized point.
4. The linked locking and releasing device capable of adapting to thermal deformation of the wing according to claim 1, characterized in that: The single-point locking and releasing mechanism (2) comprises a fixed rod (2-1), a movable rod (2-2), a coil spring (2-3), a screw plug (2-4), a pin (2-5), a compression spring (2-6), a slider (2-7), a second loading nut (2-8), a gasket (2-9), a support seat (2-10), a reversing block (2-11), a secondary linkage rope (2-12), a hanging pin (2-13), a fixed pin (2-14) and a fixed nut (2-15), wherein the compression spring (2-14) is provided with a plurality of locking and releasing means. 6) The screw plug (2-4) is sequentially sleeved on the outside of the pin shaft (2-5), the optical axis end of the pin shaft (2-5) is passed through the threaded through hole of the movable rod (2-2), the screw plug (2-4) is screwed into the movable rod (2-2), the fixed rod (2-1) passes through the ring at the end of the coil spring (2-3) and is fixed through the threaded hole of the movable rod (2-2), the fixed rod (2-1) and the movable rod (2-2) are spliced by screw threads, and the coil spring (2-3) is driven by the tooling to wrap around the fixed rod and the movable rod. After being wound to the end, the circular ring structure of the coil spring (2-3) is hooked on the optical axis end of the pin shaft (2-5). Under the action of the compression spring (2-6), the pin shaft (2-5) is prevented from being triggered by mistake. The threaded end of the movable rod (2-2) passes through the top circular hole of the support seat (2-10). The slider (2-7) and the washer (2-9) pass through the movable rod (2-2) in sequence. The No. 2 loading nut (2-8) is screwed into the threaded end of the movable rod (2-2). The secondary linkage rope (2-12) passes through the circular hole of the hanging pin (2-13). The hook pin (2-13) is screwed together with the pin shaft (2-5) through a thread, and the reversing block (2-11) is fixed to the side of the support seat (2-10), and the fixed surface and the hook pin (2-13) are oriented in the same direction. The support seat (2-10) is fixed to the locking structure with a screw, and the fixing nut (2-15) is screwed into the fixing rod (2-1). The fixing rod (2-1) passes through the locking end and is connected to the fixed end, and is tightened with the fixing nut (2-15) to complete the locking connection.
5. The linked locking and releasing device capable of adapting to thermal deformation of the wing according to claim 4, characterized in that: When the linkage locking release mechanism is locked, one end of the coil spring (2-3) is fixed to the movable rod (2-2) through the fixed pin (2-14), and the other end is hung on the pin shaft (2-5) through the winding hook, and the fixed rod (2-1) and the movable rod (2-2) are assembled into a complete cylindrical structure. The movable rod (2-2) is passed through the circular hole on the top of the support seat (2-10), and the slider (2-7) and the gasket (2-9) are stacked in sequence, and the No. 2 loading nut (2-8) is screwed into the screw rod. The fixed rod (2-1) is connected to the fixed end and tightened with the fixed nut (2-15). The No. 2 loading nut (2-8) is loaded using a loading tool to complete the compression connection between the fixed end and the locking end.
6. The linked locking and releasing device capable of adapting to thermal deformation of the wing according to claim 4, characterized in that: When the linkage locking release mechanism is unlocked, the secondary linkage rope (2-12) is pulled to drive the hanging pin (2-13) and the pin shaft (2-5) to slide radially, thereby releasing the constraints on the coil spring (2-3) in all directions. The coil spring (2-3) rotates around the movable rod (2-2) and the fixed rod (2-1) under the action of its own restoring force and is released. At the same time, the movable rod (2-2) and the fixed rod (2-1) are decomposed under the interaction force of the contact surface of the screw thread, thereby completing the unlocking and separation of the active end and the passive end.
7. The linked locking and releasing device capable of adapting to thermal deformation of the wing according to any one of claims 1 to 6, characterized in that: When the linkage locking and releasing device capable of adapting to thermal deformation of the wing is in a locked state, the cutting rod (1-12) is installed at the fixed end, and a constraint system is formed by a No. 1 loading nut (1-3), a ball pad (1-5), a pressure block (1-6) and an auxiliary seat (1-9), and the ball head (1-8) connected to the pin (1-7) is accommodated in the cavity of the pressure block (1-6) and the auxiliary seat (1-9), and the No. 1 loading nut (1-3) is used to load and complete the compression connection of the centralized compression point, and the fixed rod (2-1) in the single-point locking and releasing mechanism (2) is installed to the fixed end, and a constraint system is formed by a fixed pin (2-14), a coil spring (2-3) and a pin shaft (2-5), and the fixed rod (2-1) is connected to the movable The rod (2-2) is assembled to complete the cylindrical structure, the support seat (2-10) is connected to the fixed end and passed through the movable rod (2-2), the slider (2-7), the gasket (2-9) and the second loading nut (2-8) are sequentially passed through the top of the movable rod (2-2) and torque is applied to complete the connection of the locking point, one end of the main linkage rope (4) is connected to the pin (1-7) of the centralized compression release mechanism (1), the other end of the main linkage rope (4) is connected to the driving mechanism (3), and the auxiliary linkage rope (2-12) in the single-point locking release mechanism (2) distributed in the middle of the main linkage rope (4) is connected to the main linkage rope (4) by crimping, completing the locking connection of the entire set of linkage locking release device.
8. The linked locking and releasing device capable of adapting to thermal deformation of the wing according to any one of claims 1 to 6, characterized in that: When the linkage locking and releasing device capable of adapting to thermal deformation of the wing is in the unlocked state, an electric signal is emitted, the pyrotechnic cutter (1-1) works, the cutting rod (1-12) breaks, and the fixed end and the passive end of the concentrated pressing point are unlocked and separated. At the same time, under the action of the spring (1-13), the No. 1 loading nut (1-3), the ball pad (1-5), and the pressure block (1-6) move axially, and the pin (1-7) and the ball head (1-8) are quickly released from the cavity of the pressure block (1-6) and the auxiliary seat (1-9) under the action of the driving mechanism. The secondary linkage rope (2-12) in the linkage locking mechanism is disengaged, and the secondary linkage rope (2-12) pulls the hanging pin (2-13) and the pin shaft (2-5) to slide. The end of the pin shaft (2-5) releases the constraint on the coil spring (2-3). The coil spring (2-3) starts to rotate under the action of the restoring force, and at the same time releases the clamping constraint on the movable rod (2-2) and the fixed rod (2-1). The movable rod (2-2) and the fixed rod (2-1) are separated under the action of the screw thread contact surface, completing the unlocking and separation of the locking point.
Citation Information
Patent Citations
Connection unlocking mechanism based on shape memory alloy triggering
CN109398761A