Electrical Connector Forcible Disconnection Mechanism and Forcible Disconnection Method for Separation and Recovery of Tri-Planar Launch System

Abstract

The present invention provides a strong release mechanism and a strong release method for a three-horizontal launch system to disengage and recover an electrical connector, including: a cylinder, a steel wire rope, a mounting base plate, a recovery spring, and a clamp bracket; the mounting base plate is installed on the mounting frame, the cylinder is installed on the mounting base plate, 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 release pin; the clamp bracket 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 is connected to the mounting frame, and the other end is connected to the clamp bracket. The present application adopts a steel wire rope sheath limit design, solves the problem that the traditional electrical connector strong release mechanism cannot adapt to the large shaking between the rocket body and the erection frame in the "three-horizontal" launch mode, simplifies the structure, and adapts to the lightweight and convenient characteristics of the "three-horizontal" launch mode.

Description

Technical Field

[0001] The present invention relates to the field of aerospace technology, and particularly to a strong detachment mechanism and method for an electrical connector in the detachment and recovery of a three-horizontal launch system. In particular, it refers to a strong detachment mechanism and method for an electrical connector applied to the rapid detachment and recovery of a three-horizontal launch system. Background Art

[0002] Before a launch vehicle is launched, multiple electrical connectors are usually arranged on the rocket body for data transmission and power supply. The detachment of the electrical connector includes automatic detachment and forced detachment. Forced detachment is generally a redundant solution to ensure the reliability of detachment.

[0003] The strong detachment mechanism of an electrical connector generally refers to a mechanical structure that separates the pin of the electrical connector by mechanical movement before the launch vehicle is launched, so that the electrical connector detaches from the rocket body and can be effectively recovered. It has the characteristics of adapting to the sway of the rocket body and preventing the electrical connector from hitting the rocket body after detachment.

[0004] The "three-horizontal" launch mode requires that the launch vehicle be transported, assembled, and tested horizontally. Before launch, the rocket is erected to a vertical state by an erection frame. The relative sway between the erection frame and the launch vehicle is larger than that of the traditional fixed launch mode. For a new generation of launch vehicles, it is required that the launch of the launch vehicle, the backward fall of the erection frame, the detachment and recovery of the electrical connector be carried out synchronously at 0 second.

[0005] In the prior art, a cylinder or a motor is often used to provide power for the strong detachment mechanism, and a steel wire rope is used to transmit the strong detachment force. Compared with a motor, the structure of a cylinder is simpler and more reliable. In order to transmit the strong detachment force to the pin of the electrical connector faster, the steel wire rope is generally in a taut state, and its ability to adapt to the sway between the launch pad and the rocket body is poor. In order to adapt to the working condition that the launch of the launch vehicle, the backward fall of the erection frame, the detachment and recovery of the electrical connector are carried out synchronously at 0 second in the "three-horizontal" launch system, a set of strong detachment mechanism is required, which can not only complete the rapid strong detachment and effective recovery of the electrical connector, but also have the ability to adapt to the relatively large sway of the "three-horizontal" launch system. Summary of the Invention

[0006] Aiming at the defects in the prior art, the purpose of the present invention is to provide a strong detachment mechanism and method for an electrical connector in the detachment and recovery of a three-horizontal launch system.

[0007] A strong detachment mechanism for an electrical connector in the detachment and recovery of a three-horizontal launch system according to the present invention includes: a cylinder, a steel wire rope, a mounting base plate, a recovery spring, and a clamp bracket;

[0008] The mounting base plate is mounted on the mounting frame, the cylinder is mounted on the mounting base plate, 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 pin of the electrical connector;

[0009] The clamp bracket is connected to the electrical connector, and the electrical connector pin is used to lock the electrical connector;

[0010] One end of the recovery spring is connected to the mounting frame, and the other end is connected to the clamp bracket.

[0011] Preferably, a front support for a wire rope is installed on the installation base plate, and the wire rope passes through the front support for the wire rope.

[0012] 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.

[0013] Preferably, the cylinder, the steel wire rope and the limiting sleeve are provided in two groups, and the two cylinders are respectively connected to the electrical connector pins through corresponding steel wire ropes.

[0014] Preferably, the clamp bracket is provided with a limited sheath installation interface, a recovery spring installation interface and an electrical connector clamp;

[0015] The clamp bracket is connected to the electric connector through the electric connector clamp.

[0016] Preferably, the position-limiting sheath comprises: a wire rope sheath and a sheath joint;

[0017] 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.

[0018] Preferably, the limiting sleeve installation interface is aligned with the unpinning position of the electrical connector.

[0019] Preferably, a lifting eye screw is installed on the mounting frame, and the lifting eye screw is connected to the recovery spring.

[0020] Preferably, the deformation amount of the recovery spring can adapt to the maximum relative shaking amount between the electrical connector and the mounting bracket.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present application adopts a wire rope sheath limiting design, which solves the problem that the traditional electric connector forced release mechanism cannot adapt to the large shaking between the arrow 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.

[0023] 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 backup each other with high redundancy;

[0024] 3. The present application adopts a recovery spring to effectively recover the fallen electrical connector, which can prevent the electrical connector from hitting the arrow body after falling off. Description of the Drawings

[0025] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non - limiting embodiments read in conjunction with the accompanying drawings:

[0026] Figure 1 Schematic diagram of a strong - detachment mechanism for an electrical connector for the quick detachment and recovery of a three - flat launch system

[0027] Figure 2 Schematic diagram of a detachment mechanism

[0028] Figure 3 Schematic diagram of a recovery mechanism

[0029] As shown in the figure:

[0030] Detailed Embodiments

[0031] The present invention will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several changes and improvements can still be made. These all fall within the protection scope of the present invention.

[0032] Embodiment 1

[0033] This embodiment is applicable to the forced detachment of the electrical connector of the "three - flat" launch system where the erection frame falls backward starting from 0 seconds of launch, and can effectively solve problems such as slow detachment response speed and poor adaptability to the sway amount.

[0034] As Figures 1-3 shown, this embodiment includes: a detachment mechanism, a recovery mechanism, and a mounting bracket 1; the detachment mechanism includes: a cylinder 2, a steel wire rope 3, a front steel wire rope bracket 4, a limit sheath 5, and a mounting base plate 6; the recovery mechanism includes: a recovery spring 7 and a clamp bracket 8.

[0035] Both the detachment mechanism and the recovery mechanism are installed on the mounting bracket 1, the mounting base plate 6 is installed on the mounting bracket 1, the cylinder 2 and the front steel wire rope bracket 4 are installed on the mounting base plate 6 from top to bottom, the clamp bracket 8 is installed on the electrical connector, the steel wire rope 3 passes through the front steel wire rope bracket 4 and the clamp bracket 8, both ends of the steel wire rope 3 are respectively connected to the electrical connector pin - release and the piston of the cylinder 2, the steel wire rope 3 is covered with the limit sheath 5 between the front steel wire rope bracket 4 and the clamp bracket 8, both ends of the limit sheath 5 are connected to the front steel wire rope bracket 4 and the clamp bracket 8 by threads, both ends of the recovery spring 7 are respectively connected to the clamp bracket 8 and the mounting bracket 1. A lifting eye screw is installed on the mounting bracket 1 for fixing the recovery spring 7. The deformation amount of the recovery spring 7 can adapt to the maximum relative sway amount between the electrical connector and the mounting bracket 1.

[0036] A limiting sleeve installation interface, a recovery spring installation interface and an electric connector clamp are provided on the clamp bracket 8. The limiting sleeve installation interface is aligned with the unpinning position of the electric connector, which can ensure that the pulling direction of the wire rope 3 is along the central axis direction of the electric connector. The electric connector clamp fixes the entire clamp bracket 8 to the electric connector by tightening the bolts.

[0037] In one embodiment, the cylinder 2, the front steel wire rope bracket 4, the steel wire rope 3, and the limit sleeve 5 are designed in two groups. The two cylinders 2 are respectively connected to the electrical connector pin through a steel wire rope 3. The two groups of cylinders 2 are backups for each other, and the single group of cylinders 2 can realize the forced release function. The initial state of the piston rod of the cylinder 2 is the maximum stroke state. After receiving the forced release start command, the piston performs a recovery action to drive the steel wire rope 3 to move.

[0038] 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, and are used to fix the wire rope sheath. The wire rope sheath covers 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 wire rope 3 in a relaxed state, 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 a relaxed state is completely transmitted to the other end.

[0039] The method for forcibly disconnecting an electrical connector of this embodiment includes:

[0040] First, install the forced disengagement 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 disengagement pin. Then the control system sends a forced disengagement start signal, the air source provides a single-chamber 1MPa pressure to the cylinder 2, the piston rod of the cylinder 2 recovers and pulls the wire rope 3 to move, and the wire rope 3 only moves along the normal direction of the axis under the limiting action of the limiting sleeve 5, so that the wire rope 3, whether loose or not, has the ability to instantly transmit the pulling force recovered by the piston of the cylinder 2 to the electrical connector disengagement point, so as to pull the electrical connector disengagement pin to be forced to disengage within 0 seconds of receiving the disengagement command, and release the electrical connector connection lock state. Under the action of the pulling force 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.

[0041] Example 2

[0042] Example 2 is a preferred example of Example 1.

[0043] like Figures 1-3As shown in the figure, this embodiment includes: a mounting bracket 1, a cylinder 2, a steel wire rope 3, a front bracket 4 for the steel wire rope, a limit sheath 5, a mounting base plate 6, a recovery spring 7, and a clamp bracket 8; the mounting base plate 6 is mounted on the mounting bracket 1, the cylinder 2 and the front bracket 4 for the steel wire rope are mounted on the mounting base plate 6, the clamp bracket 8 is mounted on the electrical connector, the steel wire rope 3 passes through the front bracket 4 for the steel wire rope and the clamp bracket 8, and both ends are respectively mounted on the electrical connector pin release and the piston of the cylinder 2. The steel wire rope 3 is in a slack state to accommodate the swaying between the electrical connector and the mounting bracket 1. The limit sheath 5 is wrapped around the steel wire rope 3 between the front bracket 4 for the steel wire rope and the clamp bracket 8. Both ends of the recovery spring 7 are mounted on the clamp bracket 8 and the mounting bracket 1.

[0044] The initial state of the piston rod of the cylinder 2 is the maximum stroke state. A single cylinder 2 can provide 1.3 times the pin release force of the electrical connector under the action of 1 MPa air pressure; the limit sheath 5 includes a steel wire rope sheath and a sheath joint. The surface of the sheath joint is tapped. The two sheath joints are respectively mounted in the threaded holes on the front bracket 4 for the steel wire rope and the clamp bracket 8. The steel wire rope sheath is wrapped around the steel wire rope 3 between the front bracket 4 for the steel wire rope and the clamp bracket 8; when the steel wire rope 3 is subjected to the pulling force of the cylinder 2, it undergoes displacement. The limit sheath 5 limits the steel wire rope 3 in the slack state, enabling it to displace only along the normal direction of the axis, so as to instantaneously transfer the pulling force for the cylinder 2 piston to recover to the pin release of the electrical connector when the steel wire rope 3 is in the slack state, so as to pull the pin release of the electrical connector to be forcibly separated at 0 seconds when receiving the separation instruction; the clamp bracket 8 includes a limit sheath mounting interface, a recovery spring mounting interface, and an electrical connector clamp. The limit sheath mounting interface is aligned with the pin release position of the electrical connector, which can ensure that the pulling force direction of the steel wire rope 3 is along the central axis direction of the electrical connector. The electrical connector clamp fixes the entire clamp bracket 8 on the electrical connector by tightening bolts; a lifting ring screw is mounted on the mounting bracket 1 for fixing the recovery spring 7; the deformation amount of the recovery spring 7 can adapt to the maximum relative swaying amount between the electrical connector and the mounting bracket 1. There are two recovery springs 7, which are mounted between the two sides of the mounting bracket 1 and the clamp bracket 8. After installation, the recovery spring 7 is in a stretched state. After the clamp bracket 8 and the electrical connector fall off, the recovery spring 7 uses the pulling force to recover the clamp bracket 8 and the electrical connector.

[0045] 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 cavity of the cylinder 2, at which time the piston rod recovers and pulls the wire rope 3, and the wire rope 3 is only displaced along the axis normal under the limiting action of the limiting sleeve 5, and the pulling force recovered by the piston of the cylinder 2 is instantly transmitted to the electric connector disengagement point, pulling the electric connector disengagement, and the electric connector loses its fastening force. Since the clamp bracket 8 is fastened to one end of the electric connector, the recovery spring 7 recovers the electric connector together with the clamp bracket 8 through tension. When not in use, since the wire rope 3 is in a relaxed state and the spring has a certain stretching or compression margin, the forced release mechanism can adapt to the large shaking amount between the electric connector and the mounting frame 1 during transportation, overall erection, etc. 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.

[0046] Example 3

[0047] like Figures 1-3 As shown, this embodiment includes: a cylinder 2, a wire rope 3, a mounting base plate 6, a recovery spring 7 and a 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 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, and 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. The front bracket 4 of the wire rope is mounted on the mounting base plate 6, and the wire rope 3 passes through the front bracket 4 of the wire rope. The area of ​​the wire rope 3 between the front bracket 4 of the wire rope and the clamp bracket 8 is covered with a limiting sleeve 5, one end of the limiting sleeve 5 is connected to the front bracket 4 of the wire rope, and the other end is connected to the clamp bracket 8. A lifting eye screw is installed on the mounting frame 1, and the lifting eye screw is connected to the recovery spring 7.

[0048] The clamp bracket 8 is provided with a limited sheath installation interface, a recovery spring installation interface and an electric connector clamp, and the clamp bracket 8 is connected to the electric connector through the electric connector clamp. The limited sheath 5 includes: a wire rope sheath and a sheath joint; sheath joints are provided at both ends of the wire rope sheath, and the sheath joints at both ends are respectively threadedly connected to the wire rope front bracket 4 and the clamp bracket 8. The limited sheath installation interface is aligned with the unpinned position of the electric connector.

[0049] In one embodiment, two groups of cylinders 2, steel wire ropes 3, and limiting sheaths 5 are provided, and the cylinders 2 of the two groups are respectively connected to the electrical connector pins through the corresponding steel wire ropes 3.

[0050] The strong detachment method of this embodiment includes the following steps: Step S1, install the mounting base plate 6 and the recovery spring 7 of the strong detachment mechanism on the mounting frame 1, install the clamp bracket 8 on the electrical connector, and install the steel wire rope 3 on the pin release of the electrical connector; Step S2, the control system issues a strong detachment start signal, the air source provides a pressure of 1 MPa in a single chamber to the cylinder 2, and the piston rod of the cylinder 2 retracts and pulls the steel wire rope 3 to move; Step S3, the steel wire rope 3 only undergoes a normal displacement along the axis under the limiting action of the limiting sheath 5, the steel wire rope 3 pulls the pin release of the electrical connector to be forcibly detached, and the connection locking state of the electrical connector is released; Step S4, under the action of the pulling force of the recovery spring 7, the clamp bracket 8 drives the electrical connector to be effectively recovered near the mounting frame 1.

[0051] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0052] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

Claims

1. An electro-connector forced disconnection mechanism for the separation and recovery of a three-flat launch system, characterized in that, Comprising: a cylinder (2), a steel wire rope (3), a mounting base plate (6), a recovery spring (7), and a 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 release; The clamp bracket (8) is connected to the electrical connector, and the electrical connector pin release 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 front steel wire rope bracket (4) is mounted on the mounting base plate (6), and the steel wire rope (3) passes through the front steel wire rope bracket (4); A limiting sheath (5) is sleeved on the area of the steel wire rope (3) between the front steel wire rope bracket (4) and the clamp bracket (8), one end of the limiting sheath (5) is connected to the front steel wire rope bracket (4), and the other end is connected to the clamp bracket (8).

2. The forced disconnection mechanism of the electrical connector for the separation and recovery of the three-flat launch system according to claim 1, characterized in that: There are multiple groups of the cylinder (2), the steel wire rope (3), and the limiting sheath (5), and the cylinders (2) in each group are respectively connected to the electrical connector pin release through the corresponding steel wire ropes (3).

3. The forced detachment mechanism of the electrical connector for the separation and recovery of the triple-flat launch system according to claim 1, characterized in that: The clamp bracket (8) is provided with a limiting sheath mounting interface, a recovery spring mounting interface, and an electrical connector clamp; The clamp bracket (8) is connected to the electrical connector through the electrical connector clamp.

4. The forced detachment mechanism of the electrical connector for the separation and recovery of the three-flat launch system according to claim 1, characterized in that, The limiting sheath (5) includes: a steel 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 front steel wire rope bracket (4) and the clamp bracket (8).

5. The forced disconnection mechanism of the electrical connector for the separation and recovery of the three-flat launch system according to claim 3, characterized in that: The limiting sheath mounting interface is aligned with the position of the electrical connector pin release.

6. The forced detachment mechanism of the electrical connector for the separation and recovery of the triple-flat launch system according to claim 1, characterized in that: A lifting eye bolt is mounted on the mounting frame (1), and the lifting eye bolt is connected to the recovery spring (7).

7. The forced detachment mechanism of the electrical connector for the separation and recovery of the three-flat launch system according to claim 1, characterized in that: The deformation amount of the recovery spring (7) can adapt to the maximum relative shaking amount between the electrical connector and the mounting frame (1).

8. A forced detachment method for a forced detachment mechanism of an electrical connector that is detached and recovered using the three-flat launch system described in any one of claims 1-7, characterized in that, Including the following steps: Step S1, mounting the mounting base plate (6) and the recovery spring (7) of the forced release mechanism on the mounting frame (1), mounting the clamp bracket (8) on the electrical connector, and mounting the steel wire rope (3) on the electrical connector pin release; Step S2, the control system sends a forced release start signal, the air source provides a pressure of 1 MPa in a single chamber to the cylinder (2), and the piston rod of the cylinder (2) retracts and pulls the steel wire rope (3) to move; Step S3, under the limiting action of the limiting sheath (5), the steel wire rope (3) only undergoes a normal displacement along the axis, the steel wire rope (3) pulls the electrical connector pin release to be forcibly disengaged, and the connection locking state of the electrical connector is released; Step S4, under the action of the pulling force of the recovery spring (7), the clamp bracket (8) drives the electrical connector to be effectively recovered near the mounting frame (1).

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