Electric connector forced release mechanism and forced release method for release and recovery of three-plane launching system

Abstract

The invention provides an electric connector forced releasing mechanism and method for releasing and recycling a three-plane launching system. The electric connector forced releasing mechanism comprises an air cylinder, a steel wire rope, a mounting bottom plate, a recycling spring and a hoop support. The mounting bottom plate is mounted on the mounting frame, the air cylinder is mounted on the mounting bottom plate, one end of the steel wire rope is connected with a piston of the air cylinder, and the other end of the steel wire rope penetrates through the hoop support and is connected with the electric connector pin; the hoop support is connected with the electric connector, and the electric connector pin is used for locking the electric connector. One end of the recovery spring is connected with the mounting rack, and the other end is connected with the hoop bracket. By adopting the steel wire rope sheath limiting design, the problem that a traditional electric connector forcible disengaging mechanism cannot adapt to large shaking amount between a rocket body and an erecting frame in a three-level launching mode is solved, the structure is simplified, and the characteristics of light weight and convenience of the three-level launching mode are adapted.

Description

Technical Field

[0001] The present invention relates to the field of aerospace technology, and more particularly to a mechanism and method for forcibly disconnecting an electrical connector for the rapid disconnection and recovery of a three-level launch system. In particular, the present invention relates to a mechanism and method for rapidly disconnecting an electrical connector for the rapid disconnection and recovery of a three-level launch system. Background Art

[0002] Before launch, a launch vehicle is typically equipped with multiple electrical connectors for data transmission and power supply. Electrical connectors can be disconnected automatically or by force, with forced disconnection typically being a redundant solution to ensure reliability.

[0003] The forced release mechanism of an electrical connector generally refers to a mechanical structure that uses mechanical movement to separate the electrical connector pin before the launch of the carrier rocket, so that the electrical connector can be separated from the rocket body and effectively recovered. It has the characteristics of adapting to the shaking of the rocket body and preventing the electrical connector from damaging the rocket body after separation.

[0004] The "three-level" launch mode requires that the transfer, assembly, and testing of the carrier rocket be completed horizontally. Before launch, the rocket is erected to a vertical state using a erection frame. The relative shaking between the erection frame and the carrier rocket is greater than that of the traditional fixed launch mode. For the new generation of carrier rockets, the launch of the carrier rocket, the fall back of the erection frame, the disconnection and recovery of the electrical connector are required to be carried out simultaneously in 0 seconds.

[0005] In existing technologies, cylinders or motors are often used to power the forced release mechanism, with steel wire ropes used to transmit the forced release force. Cylinders are simpler and more reliable than motors. To more quickly transmit the forced release force to the electrical connector pin, the steel wire rope is typically kept taut, making it less adaptable to the oscillation between the launcher and the rocket body. To accommodate the "three-level" launch system, which requires the launch of the carrier rocket, the fall of the erector frame, and the detachment and recovery of the electrical connector to occur simultaneously within 0 seconds, a forced release mechanism is required that can achieve rapid forced release and effective recovery of the electrical connector while also being able to accommodate the relatively large oscillations of the "three-level" launch system. Summary of the Invention

[0006] In view of the defects in the prior art, the purpose of the present invention is to provide a forced disengagement mechanism and a forced disengagement method for an electrical connector for disengaging and recovering a three-level launch system.

[0007] According to the present invention, a three-level launch system is provided with an electrical connector forced release mechanism for release and recovery, comprising: a cylinder, a steel wire rope, a mounting base, a recovery spring, and a clamp bracket; The mounting base is mounted on the mounting frame, and the cylinder is mounted on the mounting base. One end of the steel wire rope is connected to the piston of the cylinder, and the other end passes through the clamp bracket and is connected to the electrical connector pin; The clamp bracket is connected to the electrical connector, and the electrical connector is released to lock the electrical connector; One end of the recovery spring is connected to the mounting frame, and the other end is connected to the clamp bracket.

[0008] Preferably, a wire rope front bracket is installed on the mounting base plate, and the wire rope passes through the wire rope front bracket.

[0009] Preferably, the area of ​​the steel wire rope between the steel wire rope front bracket and the clamp bracket is covered with a limiting sheath, one end of the limiting sheath is connected to the steel wire rope front bracket, and the other end is connected to the clamp bracket.

[0010] Preferably, the cylinder, the steel wire rope and the limiting sheath are provided in two groups, and the two cylinders are respectively connected to the electrical connector pins through corresponding steel wire ropes.

[0011] Preferably, the clamp bracket is provided with a limited sheath installation interface, a recovery spring installation interface and an electrical connector clamp; The clamp bracket is connected to the electric connector through the electric connector clamp.

[0012] Preferably, the position-limiting sheath comprises: a wire rope sheath and a sheath joint; Both ends of the steel wire rope sheath are provided with sheath joints, and the sheath joints at both ends are respectively threadedly connected to the steel wire rope front bracket and the clamp bracket.

[0013] Preferably, the limiting sheath installation interface is aligned with the unpinning position of the electrical connector.

[0014] Preferably, a lifting eye screw is installed on the mounting bracket, and the lifting eye screw is connected to the recovery spring.

[0015] Preferably, the deformation of the recovery spring can adapt to the maximum relative shaking of the electrical connector and the mounting bracket.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This application adopts a wire rope sheath limiting design to solve the problem that the traditional electrical connector forced release mechanism cannot adapt to the large shaking between the rocket body and the erection frame in the "three-level" launch mode, simplifies the structure, and adapts to the lightweight and convenient characteristics of the "three-level" launch mode.

[0017] 2. This application adopts a dual-cylinder redundant design scheme. A single set of cylinders can complete the forced release action, and the two sets of cylinders serve as backup for each other, with high redundancy; 3. This application uses a recovery spring to effectively recover the detached electrical connector, which can prevent the electrical connector from hitting the arrow body after falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings: Figure 1 Schematic diagram of the electrical connector forced release mechanism for the rapid detachment and recovery of the Sanping launch system; Figure 2 Schematic diagram of the shedding mechanism; Figure 3 This is a schematic diagram of the recycling mechanism; As shown in the figure: DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0020] Example 1 This embodiment is suitable for the forced detachment of the electrical connector of the "three-level" launch system that is erected at 0 seconds after launch and then falls down, and can effectively solve the problems of slow detachment response speed and poor adaptability to shaking.

[0021] like Figure 1-3 As shown, this embodiment includes: a falling mechanism, a recovery mechanism and a mounting frame 1; the falling mechanism includes: a cylinder 2, a wire rope 3, a wire rope front bracket 4, a limiting sheath 5 and a mounting base plate 6; the recovery mechanism includes: a recovery spring 7 and a clamp bracket 8.

[0022] Both the dropout mechanism and the recovery mechanism are mounted on the mounting frame 1. The mounting base 6 is mounted on the mounting frame 1. The cylinder 2 and the front wire rope bracket 4 are mounted on the mounting base 6 from top to bottom. The clamp bracket 8 is mounted on the electrical connector. The wire rope 3 passes through the front wire rope bracket 4 and the clamp bracket 8. The ends of the wire rope 3 are connected to the electrical connector release pin and the piston of the cylinder 2, respectively. The wire rope 3 is wrapped around a limiter sleeve 5 between the front wire rope bracket 4 and the clamp bracket 8. The ends of the limiter sleeve 5 are connected to the front wire rope bracket 4 and the clamp bracket 8 through threads. The ends of the recovery spring 7 are connected to the clamp bracket 8 and the mounting frame 1, respectively. An eye screw is installed on the mounting frame 1 to secure the recovery spring 7. The deformation of the recovery spring 7 can accommodate the maximum relative shaking of the electrical connector and the mounting frame 1.

[0023] A limiting sleeve installation interface, a recovery spring installation interface and an electrical connector clamp are set on the clamp bracket 8. The limiting sleeve installation interface is aligned with the unpinning position of the electrical connector, which can ensure that the pulling direction of the wire rope 3 is along the central axis of the electrical connector. The electrical connector clamp fixes the entire clamp bracket 8 to the electrical connector by tightening the bolts.

[0024] In one embodiment, two sets of cylinders 2, front wire rope brackets 4, wire ropes 3, and retaining sleeves 5 are designed. Each set of cylinders 2 is connected to the electrical connector pin via a separate wire rope 3. The two sets of cylinders 2 serve as backups for each other, allowing a single set of cylinders 2 to achieve a forced release function. The piston rod of cylinder 2 is initially at its maximum stroke. Upon receiving the forced release start command, the piston retracts, driving the wire rope 3.

[0025] In one embodiment, the limiting sheath 5 includes a wire rope sheath and a sheath joint, the surface of the sheath joint is threaded, and the two sheath joints are respectively installed in the threaded holes on the wire rope front bracket 4 and the clamp bracket 8, for fixing the wire rope sheath, and the wire rope sheath is covered on the wire rope between the wire rope front bracket 4 and the clamp bracket 8; the wire rope 3 is displaced when subjected to the tension of the cylinder 2, and the limiting sheath 5 limits the relaxed wire rope 3 so that it only displaces along the normal direction of the axis, so that the displacement of one end of the wire rope 3 in the relaxed state is completely transferred to the other end.

[0026] The method for forcibly disconnecting an electrical connector according to this embodiment includes: First, install the forced-release mechanism as a whole on the mounting frame 1, install the clamp bracket 8 on the electrical connector, and install the wire rope 3 on the electrical connector pin. Then, the control system sends a forced-release start signal, and the air source provides a single-chamber 1MPa pressure to the air cylinder 2. The piston rod of the air cylinder 2 retracts and pulls the wire rope 3 to move. Under the limiting action of the limiting sheath 5, the wire rope 3 only moves along the normal direction of the axis. This allows the wire rope 3 to instantly transmit the pulling force of the cylinder 2 piston to the electrical connector pin regardless of whether it is loose or not. This pulls the electrical connector pin to forcibly detach within 0 seconds of receiving the release command, releasing the electrical connector connection lock state. Under the action of the tension of the recovery spring 7, the clamp bracket 8 drives the electrical connector to be effectively recovered to the vicinity of the mounting frame 1.

[0027] Example 2 Example 2 is a preferred example of Example 1.

[0028] like Figure 1-3 As shown, this embodiment includes: a mounting frame 1, a cylinder 2, a wire rope 3, a wire rope front bracket 4, a limiting sleeve 5, a mounting base 6, a recovery spring 7, and a clamp bracket 8; the mounting base 6 is installed on the mounting frame 1, the cylinder 2 and the wire rope front bracket 4 are installed on the mounting base 6, the clamp bracket 8 is installed on the electrical connector, the wire rope 3 passes through the wire rope front bracket 4 and the clamp bracket 8, and the two ends are respectively installed on the electrical connector pin and the cylinder 2 piston, the wire rope 3 is in a relaxed state to adapt to the shaking between the electrical connector and the mounting frame 1, the limiting sleeve 5 is covered on the wire rope 3 between the wire rope front bracket 4 and the clamp bracket 8, and the two ends of the recovery spring 7 are installed on the clamp bracket 8 and the mounting frame 1.

[0029] The initial state of the piston rod of cylinder 2 is the maximum stroke state. A single cylinder 2 can provide 1.3 times the disengagement force of the electrical connector under the action of 1MPa air pressure; the limiting sheath 5 includes a wire rope sheath and a sheath joint, the surface of the sheath joint is threaded, and the two sheath joints are respectively installed in the threaded holes on the wire rope front bracket 4 and the clamp bracket 8, and the wire rope sheath is covered on the wire rope 3 between the wire rope front bracket 4 and the clamp bracket 8; the wire rope 3 is displaced when subjected to the tension of cylinder 2, and the limiting sheath 5 limits the relaxed wire rope 3 so that it only displaces along the normal direction of the axis, so that the wire rope 3 can instantly transmit the tension recovered by the cylinder 2 piston to the disengagement point of the electrical connector in the relaxed state, so as to pull the electrical connector to disengage when receiving the disengagement instruction. 0 seconds of forced disengagement; the clamp bracket 8 includes a limiting sleeve installation interface, a recovery spring installation interface, and an electrical connector clamp. The limiting sleeve installation interface is aligned with the electrical connector unpinning position, which can ensure that the pulling direction of the wire rope 3 is along the central axis of the electrical connector. The electrical connector clamp fixes the entire clamp bracket 8 to the electrical connector by tightening the bolts; a lifting eye screw is installed on the mounting frame 1 to fix the recovery spring 7; the deformation of the recovery spring 7 can adapt to the maximum relative shaking of the electrical connector and the mounting frame 1. There are two recovery springs 7, which are installed on both sides of the mounting frame 1 and between the clamp bracket 8. After installation, the recovery spring 7 is in a stretched state. After the clamp bracket 8 is detached from the electrical connector, the recovery spring 7 uses tension to recover the clamp bracket 8 and the electrical connector.

[0030] When the device of this embodiment is not in use, the recovery spring 7 is in a stretched state, connected between the clamp bracket 8 and the mounting frame 1, the piston rod of the cylinder 2 is in a maximum stroke state, and the wire rope 3 and the limiting sleeve 5 are in a relaxed state. When in use, 1MPa gas is introduced into the forward chamber of the cylinder 2. At this time, the piston rod recovers and pulls the wire rope 3. Under the limiting action of the limiting sleeve 5, the wire rope 3 only moves along the normal direction of the axis, instantly transmitting the pulling force of the cylinder 2 piston to the electrical connector release point, pulling the electrical connector to release the pin and losing its tightening force. Since the clamp bracket 8 is tightened to one end of the electrical connector, the recovery spring 7 uses the tension together with the clamp bracket 8 to recover the electrical connector. When not in use, since the wire rope 3 is in a relaxed state and the spring has a certain amount of tension or compression margin, the forced release mechanism can adapt to the large amount of shaking between the electrical connector and the mounting frame 1 during transportation and overall erection. At the same time, due to the limiting effect of the limiting sheath 5, after receiving the forced removal command, the relaxed wire rope 3 can instantly transmit the tension of the cylinder 2 to the electrical connector to remove the pin, and cooperate with the 0-second fall of the mounting frame 1 to achieve 0-second rapid removal.

[0031] Example 3 like Figure 1-3As shown, this embodiment includes: a cylinder 2, a wire rope 3, a mounting base 6, a recovery spring 7, and a clamp bracket 8. The mounting base 6 is mounted on the mounting frame 1, and the cylinder 2 is mounted on the mounting base 6. One end of the wire rope 3 is connected to the piston of the cylinder 2, and the other end passes through the clamp bracket 8 and is connected to the electrical connector pin. The clamp bracket 8 is connected to the electrical connector, and the electrical connector pin is used to lock the electrical connector. The recovery spring 7 has one end connected to the mounting frame 1 and the other end connected to the clamp bracket 8. The front wire rope bracket 4 is mounted on the mounting base 6, and the wire rope 3 passes through the front wire rope bracket 4. The area of ​​the wire rope 3 between the front wire rope bracket 4 and the clamp bracket 8 is covered with a limit sleeve 5. The limit sleeve 5 is connected to the front wire rope bracket 4 at one end and to the clamp bracket 8 at the other end. A lifting eye screw is installed on the mounting frame 1, and the lifting eye screw is connected to the recovery spring 7.

[0032] The clamp bracket 8 is equipped with a mounting interface for the limit sheath, a mounting interface for the recovery spring, and an electrical connector clamp. The clamp bracket 8 connects to the electrical connector via the electrical connector clamp. The limit sheath 5 comprises a wire rope sheath and a sheath connector. The sheath connectors are provided at both ends of the wire rope sheath, which are threadedly connected to the wire rope front bracket 4 and the clamp bracket 8, respectively. The limit sheath mounting interface is aligned with the electrical connector's release position.

[0033] In one embodiment, two groups of cylinders 2, steel wire ropes 3, and limiting sheaths 5 are provided, and the cylinders 2 in the two groups are respectively connected to the electrical connector pins through corresponding steel wire ropes 3.

[0034] The forced disengagement method of this embodiment includes the following steps: Step S1, install the mounting base 6 and the recovery spring 7 of the forced disengagement mechanism onto the mounting frame 1, install the clamp bracket 8 onto the electrical connector, and install the wire rope 3 onto the electrical connector disengagement pin; Step S2, the control system sends a forced disengagement start signal, the air source provides a single-chamber pressure of 1MPa to the cylinder 2, and the piston rod of the cylinder 2 recovers and pulls the wire rope 3 to move; Step S3, the wire rope 3 only moves normal to the axis under the limiting action of the limiting sheath 5, and the wire rope 3 pulls the electrical connector disengagement pin to force it to disengage, thereby releasing the electrical connector connection lock state; Step S4, the clamp bracket 8 drives the electrical connector to be effectively recovered to the vicinity of the mounting frame 1 under the action of the tension of the recovery spring 7.

[0035] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0036] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A forced disengagement mechanism for an electrical connector for disengagement and recovery of a three-level launch system, characterized in that: include: Cylinder (2), wire rope (3), mounting base plate (6), recovery spring (7) and clamp bracket (8); The mounting base plate (6) is mounted on the mounting frame (1), the cylinder (2) is mounted on the mounting base plate (6), one end of the steel wire rope (3) is connected to the piston of the cylinder (2), and the other end passes through the clamp bracket (8) and is connected to the electrical connector pin; The clamp bracket (8) is connected to the electrical connector, and the electrical connector release pin is used to lock the electrical connector; One end of the recovery spring (7) is connected to the mounting frame (1), and the other end is connected to the clamp bracket (8); A steel wire rope front bracket (4) is mounted on the mounting base plate (6), and the steel wire rope (3) passes through the steel wire rope front bracket (4); The area of ​​the steel wire rope (3) between the steel wire rope front bracket (4) and the clamp bracket (8) is covered with a limiting sleeve (5), one end of the limiting sleeve (5) is connected to the steel wire rope front bracket (4), and the other end is connected to the clamp bracket (8).

2. According to claim 1, the electrical connector forced disengagement mechanism for disengaging and recovering the three-level launch system is characterized by: The cylinder (2), the steel wire rope (3), and the limiting sleeve (5) are provided in a plurality of groups, and the cylinder (2) in each group is connected to the electrical connector pin via a corresponding steel wire rope (3).

3. According to claim 1, the electrical connector forced disengagement mechanism for disengaging and recovering the three-level launch system is characterized by: The clamp bracket (8) is provided with a limited position sheath installation interface, a recovery spring installation interface and an electrical connector clamp; The clamp bracket (8) is connected to the electrical connector via the electrical connector clamp.

4. The electrical connector forced disengagement mechanism for disengaging and recovering the three-level launch system according to claim 1 is characterized in that: The limiting sheath (5) comprises: a wire rope sheath and a sheath joint; Sheath joints are provided at both ends of the steel wire rope sheath, and the sheath joints at both ends are respectively threadedly connected to the steel wire rope front bracket (4) and the clamp bracket (8).

5. According to claim 3, the electrical connector forced disengagement mechanism for disengaging and recovering the three-level launch system is characterized in that: The limiting sheath installation interface is aligned with the unpinning position of the electrical connector.

6. According to claim 1, the electrical connector forced disengagement mechanism for disengaging and recovering the three-level launch system is characterized by: A lifting eye screw is mounted on the mounting frame (1), and the lifting eye screw is connected to a recovery spring (7).

7. The electrical connector forced disengagement mechanism for disengaging and recovering the three-level launch system according to claim 1 is characterized by: The deformation amount of the recovery spring (7) can adapt to the maximum relative shaking amount of the electrical connector and the mounting frame (1).

8. A method for forcibly disengaging an electrical connector by using the forcibly disengaging mechanism of the three-level launch system for disengagement and recovery as described in any one of claims 1 to 7, characterized in that: The following steps are involved: Step S1, installing the mounting base plate (6) and the recovery spring (7) of the forced release mechanism onto the mounting frame (1), installing the clamp bracket (8) onto the electrical connector, and installing the wire rope (3) onto the release pin of the electrical connector; Step S2, the control system sends a forced release start signal, the air source provides a single-chamber pressure of 1 MPa to the air cylinder (2), the piston rod of the air cylinder (2) is retracted and pulls the steel wire rope (3) to move; Step S3, the steel wire rope (3) only moves in the normal direction along the axis under the limiting action of the limiting sheath (5), and the steel wire rope (3) pulls the electrical connector to force it to disengage, thereby releasing the connection locking state of the electrical connector; In step S4, the clamp bracket (8) drives the electrical connector to be effectively recovered to the vicinity of the mounting frame (1) under the action of the pulling force of the recovery spring (7).

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