Rocket connector plug puller

Abstract

The utility model discloses a rocket connector plug puller, comprising a pulling rope (2) and the force applying mechanism (1) that can be connected to the first end of pulling rope (2), the second end of pulling rope (2) is connected on rocket two stage socket electric connector plug (6), and rocket two stage socket electric connector plug (6) is connected to rocket two stage socket, the force applying mechanism (1) is used to force pulling rope (2) and pulls off rocket two stage socket electric connector plug (6) from rocket two stage socket, the force applying mechanism (1) comprises two groups of lead screws (11) and two groups of power mechanism (12) arranged side by side, and one group of power mechanism (12) is connected to one group of lead screws (11) for providing power for lead screw (11), and the movable end of each group of lead screws (11) can be connected to the first end of pulling rope (2). The redundant design of two groups of lead screws and two groups of power mechanism in parallel can provide fault tolerance ability and improve reliability.

Description

Technical Field

[0001] This utility model relates to the field of rocket launch, specifically to a rocket connector plug pull-out device. Background Technology

[0002] Before the rocket ignites and lifts off, it needs to be connected to the ground-based telemetry and control system via cables to provide power and control signals to the onboard equipment. The cables are laid across the launch pad, with one end connected to the ground telemetry and control equipment and the other end connected to the rocket's second-stage receptacle via an electrical connector. At the moment of ignition and liftoff, the electrical connector at the second stage needs to be detached from the receptacle. Currently, the primary method for detaching this connector is automatic electrical disconnection controlled by the telemetry and control system, with mechanical pull-out as a backup. Mechanical pull-out requires a dedicated actuator on the launch pad to ensure reliable disconnection of the connector.

[0003] In the process of developing this utility model, the applicant discovered at least the following problems in the prior art:

[0004] In the past, mechanical pull-out devices for rocket connector plugs mostly used steel wire ropes or connecting rods. At the moment of rocket ignition and takeoff, the connecting rods or steel wire ropes would pull the electrical connector plugs away. The power actuator of this device is relatively simple and lacks redundancy design. If the power actuator fails at the moment of rocket ignition and takeoff, there will be no remedial measures available on site, which will result in the electrical connector plugs not being able to be reliably pulled out. Utility Model Content

[0005] This utility model provides a rocket connector plug pull-out device, which can solve the technical problem in the prior art: "At the moment of rocket ignition and takeoff, the electric connector plug is pulled out by a connecting rod or steel wire rope. The actuator of the connecting rod or steel wire rope is relatively simple and lacks redundancy design. If the power actuator fails at the moment of rocket takeoff and ignition, there are no remedial measures available on site, which will cause the electric connector plug to be unable to be reliably pulled out."

[0006] To achieve the above objectives, this utility model provides a rocket connector plug pull-out device, including a pull rope and a force-applying mechanism that can be connected to the first end of the pull rope;

[0007] The second end of the pull rope is connected to the plug of the rocket secondary socket electrical connector during use, and the plug of the rocket secondary socket electrical connector is connected to the rocket secondary socket;

[0008] The force-applying mechanism is used to apply force to the pull rope to pull the plug of the rocket secondary socket electrical connector off the rocket secondary socket;

[0009] The force-applying mechanism includes two sets of lead screws and two sets of power mechanisms arranged in parallel. One set of power mechanisms is connected to a corresponding set of lead screws to provide power to the lead screws. The movable end of each set of lead screws can be connected to the first end of the pulling rope.

[0010] The above technical solution has the following beneficial effects: By employing two sets of lead screws and two sets of power mechanisms arranged in parallel, if one set of power mechanisms malfunctions and fails to operate at the moment of rocket ignition, the other set of power mechanisms can still continue to drive the corresponding lead screw, pulling the pull rope and thus detaching the rocket's secondary socket electrical connector plug from the secondary socket. This ensures that the rocket's secondary socket electrical connector plug can be reliably mechanically detached at the moment of rocket ignition and liftoff. This redundancy design provides fault tolerance and improves reliability. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is an isometric view of the rocket connector plug pull-out device of this utility model;

[0013] Figure 2 This is a front view of a set of force-applying mechanisms of this utility model;

[0014] Figure 3 This is a front view of the wire rope assembly of this utility model;

[0015] Figure 4 This is an isometric view of the mounting base of this utility model.

[0016] The reference numerals in the attached figures are as follows:

[0017] 1. Force-applying mechanism; 2. Pull rope; 3. Wire rope assembly; 4. Mounting base; 5. Guide mechanism; 6. Rocket secondary socket electrical connector plug;

[0018] 11. Lead screw; 12. Power mechanism;

[0019] 31. First fixing wire rope; 32. Second fixing wire rope; 33. First connector; 34. Second connector; 35. Third connector;

[0020] 41. Support base plate; 42. Mounting lugs; 43. Support vertical plate; 44. Buckle plate; 45. Fixing holes;

[0021] 51. Guide base plate; 52. Fixed guide ring; 53. Movable guide ring;

[0022] 111. Movable rod; 112. Cylinder body;

[0023] 121. Gear reducer; 122. Motor;

[0024] 331. First mounting component; 332. First fastener;

[0025] 341. Second mounting component; 342. Second fastener;

[0026] 1111, Lug; 1121, Lubricating oil filling port. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1 As shown, in conjunction with an embodiment of the present invention, a rocket connector plug pull-out device is provided, including a pull rope 2 and a force application mechanism 1 that can be connected to the first end of the pull rope 2;

[0029] The second end of the pull rope 2 is connected to the rocket secondary socket electrical connector plug 6 during use, and the rocket secondary socket electrical connector plug 6 is connected to the rocket secondary socket;

[0030] The force-applying mechanism 1 is used to apply force to the pull rope 2 to pull the plug 6 of the rocket secondary socket electrical connector detached from the rocket secondary socket;

[0031] The force-applying mechanism 1 includes two sets of lead screws 11 arranged in parallel and two sets of power mechanisms 12. One set of power mechanisms 12 is connected to the corresponding set of lead screws 11 to provide power to the lead screws 11. The movable end of each set of lead screws 11 can be connected to the first end of the pulling rope 2.

[0032] An embodiment of this utility model provides a rocket connector plug pull-out device for mechanically separating the plug 6 of the rocket's secondary socket electrical connector during rocket ignition and takeoff.

[0033] The system employs two sets of lead screws 11 and two sets of power mechanisms 12 arranged in parallel. If one set of power mechanisms 12 malfunctions and fails to operate at the moment of rocket ignition, the other set of power mechanisms 12 can continue to drive the corresponding lead screw 11, pulling the pull rope 2 and thus detaching the rocket's secondary socket electrical connector plug 6 from the secondary socket. This ensures that the rocket's secondary socket electrical connector plug 6 can be reliably mechanically detached at the moment of rocket ignition and liftoff. This redundancy design provides fault tolerance and improves reliability. Preferably, the pull rope 2 is a steel wire rope.

[0034] Preferably, such as Figure 1 and Figure 2 As shown, the lead screw 11 includes a cylinder body 112 (with a lubricating oil filling port 1121 on the cylinder body 112 for maintenance of the lead screw 11) and a movable rod 111 disposed in the cylinder body 112. The power mechanism 12 includes a reducer 121 and a motor 122. The input end of the reducer 121 is connected to the motor 122, and the cylinder body 112 is connected to the output end of the reducer 121.

[0035] The lead screw 11 has a simple structure and is driven independently by the power mechanism 12. They can work independently and simultaneously without switching, thus achieving thermal redundancy.

[0036] Preferably, the motor 122 is a DC synchronous motor, and the reducer 121 is a planetary reducer. The DC synchronous motor has speed regulation and torque protection functions, which can adjust the pull-out force of the rocket's secondary socket electrical connector plug 6. The planetary reducer converts the speed and torque of the motor 122 to meet the speed requirements for pulling out the traction rope 2. In addition, the DC synchronous motor and the planetary reducer are mature products with high reliability.

[0037] Preferably, such as Figure 1 and Figure 3 As shown, the rocket connector plug pull-out device further includes a steel wire rope assembly 3, which includes a first fixing steel wire rope 31 and a second fixing steel wire rope 32.

[0038] The first end of the first fixed steel wire rope 31 is connected to the movable rod 111 of the first set of screw rods 11;

[0039] The first end of the second fixed steel wire rope 32 is connected to the movable rod 111 of the second set of screw rods 11;

[0040] The second end of the first fixing wire rope 31 and the second fixing wire rope 32 are both connected to the first end of the pulling rope 2.

[0041] The wire rope assembly 3 serves as a connection device between the two sets of lead screws 11 and the pulling rope 2, and can adapt to different pull-out heights. It can also solve the problem of speed difference in the pulling of the two sets of lead screws 11 caused by the inability of the two sets of power mechanisms 12 to start completely synchronously.

[0042] Preferably, such as Figure 1 and Figure 3 As shown, the movable rod 111 has a lug 1111, and the wire rope assembly 3 also includes a first connector 33, a second connector 34 and a third connector 35;

[0043] The first end of the first fixed steel wire rope 31 is connected to the lug 1111 of the movable rod 111 of the set of screw rods 11 through the first connector 33;

[0044] The first end of the second fixed steel wire rope 32 is connected to the lug 1111 of the movable rod 111 of the second set of screw rods 11 through the second connector 34;

[0045] The second end of the first fixing wire rope 31 and the second end of the second fixing wire rope 32 are connected to the first end of the pulling rope 2 through the third connector 35.

[0046] One end of the fixed wire rope 21 is connected to the fixing member 20, and the other end is connected to the triangular buckle 22.

[0047] The conversion from two wire ropes to one wire rope is completed through the third connector 35, and the coupling of the two electric lead screws 11 is realized.

[0048] The triangular buckle 22 completes the conversion of two fixed steel wire ropes: the first fixed steel wire rope 31 and the second fixed steel wire rope into a pulling rope 2, realizing the coupling of the two lead rods 11.

[0049] Preferably, such as Figure 3 As shown, the first connector 33 includes a first mounting member 331 and a first fixing member 332. The first fixing member 332 and the first mounting member 331 are connected by a first pin. The first mounting member 331 is fixedly connected to the lug 1111 on the first set of movable rods 111. The first end of the first fixing wire rope 31 is connected to the first fixing member 332.

[0050] The second connector 34 includes a second mounting member 341 and a second fixing member 342. The second fixing member 342 and the second mounting member 341 are connected by a second pin. The second mounting member 341 is fixedly connected to the lug 1111 on the second set of movable rods 111. The first end of the second fixing wire rope 32 is connected to the second fixing member 342.

[0051] Because two sets of lead screws 11 arranged in parallel provide tension for one pulling rope 2, the two corresponding fixed steel wire ropes between the two sets of lead screws 11 and the pulling rope 2—the first fixed steel wire rope 31 and the second fixed steel wire rope 32—will definitely have angular surfaces. Therefore, the first fixing member 332 and the first mounting member 331 are connected by a first pin to accommodate the angle change of the first fixed steel wire rope 31, and the second fixing member 342 and the second mounting member 341 are connected by a second pin to accommodate the angle change of the second fixed steel wire rope 32.

[0052] Preferably, such as Figure 3 As shown, the third connector 35 is a triangular buckle. The triangular buckle has a simple structure and can easily convert two fixed steel wire ropes: the first fixed steel wire rope 31 and the second fixed steel wire rope 32 into a pulling rope 2, so as to realize the coupling of the two lead rods 11.

[0053] Preferably, such as Figure 1 and Figure 4 As shown, the rocket connector plug pull-out device further includes a mounting base 4. The mounting base 4 includes a supporting base plate 41 and a pair of vertically arranged mounting ears 42 for mounting the cylinder 112 on the supporting base plate 41. The mounting base 4 also includes a supporting vertical plate 43 fixed on the supporting base plate 41 and a buckle plate 44 that cooperates with the supporting vertical plate 43. Two fixing holes 45 are provided at the contact point between the supporting vertical plate 43 and the buckle plate 44.

[0054] The supporting base plate 41 is fixed to the rocket erector or launch tower by screws. The pairs of mounting ears 42 are welded to the supporting base plate 41. The cylinder 112 of each set of lead screws 11 is installed between a pair of mounting ears 42, and the bottom end of each cylinder 112 is respectively connected through a fixing hole 45 to fix the cylinder 112 through the supporting vertical plate 43 and the buckle plate 44. The power mechanism 12 is located on the other side of the supporting vertical plate 43 and the buckle plate 44 (the pull rope 2 is located on one side of the supporting vertical plate 43 and the buckle plate 44).

[0055] Mounting base 4 has a simple structure and serves as the mounting interface for the entire rocket connector plug pull-out device.

[0056] Preferably, such as Figure 1 As shown, the rocket connector plug pull-out device further includes a guide mechanism 5. The guide mechanism 5 includes a guide base plate 51 and a fixed guide ring 52 disposed on the guide base plate 51. The fixed guide ring 52 is used to maintain or change the direction of the pulling rope 2, and the angle of change of the pulling rope 2 is less than 90 degrees relative to the original angle.

[0057] Passing the pull rope 2 through the fixed guide ring 52 ensures the stability of the pull rope 2's direction. Alternatively, if the space for the rocket connector plug pull-out device is limited (in this case, the mounting base 4 is on the erector, both the erector and the socket containing the rocket's secondary socket are vertical, and both the erector and the rocket are vertical), the pull rope 2 must be connected to the rocket's secondary socket electrical connector plug 6. In this condition, the fixed guide ring 52 serves both guiding and reversing functions. The change angle of the pull rope 2 is less than 90 degrees compared to its original angle, reducing the friction between the pull rope 2 and the fixed guide ring 52. This eliminates the need for the force-applying mechanism 1 to apply excessive tension to the pull rope 2, and also improves the lifespan and reliability of the pull rope 2.

[0058] Preferably, such as Figure 1 As shown, the guiding mechanism 5 also includes a movable guide ring 53 disposed on the guide base plate 51. The movable guide ring 53 is disposed on the force propagation path of the pulling rope 2 and is located after the fixed guide ring 52. The movable guide ring 53 is used to change the direction of the pulling rope 2, and the angle of change of the pulling rope 2 reaches 90 degrees relative to the original angle.

[0059] If the space allocated for the rocket connector plug pull-out device is too small to connect to the rocket secondary socket electrical connector plug 6, a movable guide ring 53 can be added after the fixed guide ring 52 to redirect the pull rope 2 again. This allows the pull rope 2 to change angle to 90 degrees. Using two redirections, compared to using a single fixed guide ring 52 to directly set the angle to 90 degrees, significantly reduces the friction between the pull rope 2 and a single fixed guide ring 52, thus increasing the lifespan of the pull rope 2. Because the pull rope 2 undergoes two guidances, the accuracy of the pull angle is improved, enhancing the reliability of the pull-out.

[0060] In summary, the rocket connector plug pull-out device provided by the embodiments of this utility model adopts a redundant design, which improves the reliability of the entire device and provides safety assurance for rocket launch; it has a simple structure, is easy to install, has low construction cost, high degree of automation, and can adapt to different types of erecting frames or launch towers; it is flexible in use, the pull-out force is adjustable, and it has a wide range of applications.

[0061] The method of using a rocket connector plug pull-out device provided by an embodiment of this utility model is as follows:

[0062] 1. Before use, control the lead screw 11 to extend the movable rod 111 to the foremost position (extended to its longest position, with a stroke of approximately 800mm for the movable rod 111), and connect the wire rope assembly 3 to the lug 1111 of the movable rod 111.

[0063] 2. Insert the connector plug 6 of the rocket secondary socket into the rocket secondary socket, and then secure one end of the pull rope 2 by passing it through the pull ring on the connector plug 6 of the rocket secondary socket with the buckle.

[0064] 3. After passing the other end of the pull rope 2 through the movable guide ring 53 and the fixed guide ring 52 on the guide mechanism 5 in sequence, adjust the length of the pull rope 2 to leave a certain amount of slack, and then use the buckle to fix it to the triangular buckle.

[0065] 4. Adjust the direction of the guide ring 53 so that its axis is the same as the direction of the pulling rope 2.

[0066] 5. Start the control motor 122, and pull the movable rod 111 back through the reducer 121. At the same time, the two lead screws 11 pull the traction rope 2 through the wire rope assembly 3 until it is taut.

[0067] 6. As motor 122 continues to operate, the pull rope 2 continues to move, which can pull the pull ring on the plug 6 of the second-stage rocket socket electrical connector, thereby pulling the plug 6 of the second-stage rocket socket electrical connector detached from the second stage of the rocket.

[0068] 7. During the pull-out process, if a single lead screw 11 fails to move due to signal or mechanical failure, the other lead screw 11 can still pull the pulling rope 2 through the triangular buckle, thus achieving redundancy of the entire device.

[0069] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process may be rearranged without departing from the scope of this disclosure. The appended method claims provide elements of various steps in an exemplary order and are not intended to limit the scope to the specific order or hierarchy described.

[0070] In the above detailed description, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be construed as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, the invention is presented with fewer features than all of the features in a single disclosed embodiment. Therefore, the appended claims are hereby explicitly incorporated into the detailed description, with each claim representing a separate preferred embodiment of the invention.

[0071] The disclosed embodiments have been described above to enable any person skilled in the art to implement or use this invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the spirit and scope of this disclosure. Therefore, this disclosure is not limited to the embodiments given herein, but is consistent with the widest scope of the principles and novel features disclosed in this application.

[0072] The foregoing description includes examples of one or more embodiments. It is certainly impossible to describe all possible combinations of components or methods in order to describe the above embodiments, but those skilled in the art will recognize that further combinations and arrangements of the various embodiments are possible. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. Furthermore, the term "comprising" as used in the specification or claims is interpreted in a manner similar to the term "including," as interpreted when used as a conjunction in the claims. Additionally, the use of any term "or" in the specification of the claims is intended to mean "non-exclusive or."

[0073] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A rocket connector plug pull-out device, characterized in that, It includes a pull rope (2) and a force-applying mechanism (1) connected to the first end of the pull rope (2); The second end of the pull rope (2) is connected to the rocket secondary socket electrical connector plug (6) during use, and the rocket secondary socket electrical connector plug (6) is connected to the rocket secondary socket; The force-applying mechanism (1) is used to apply force to the pull rope (2) to pull the plug (6) of the rocket secondary socket electrical connector off the rocket secondary socket; The force-applying mechanism (1) includes two sets of lead screws (11) arranged in parallel and two sets of power mechanisms (12). Each set of power mechanisms (12) is connected to a corresponding set of lead screws (11) to provide power to the lead screws (11). The movable end of each set of lead screws (11) is connected to the first end of the pulling rope (2).

2. The rocket connector plug pull-out device according to claim 1, characterized in that, The lead screw (11) includes a cylinder (112) and a movable rod (111) disposed in the cylinder (112). The power mechanism (12) includes a reducer (121) and a motor (122). The input end of the reducer (121) is connected to the motor (122), and the cylinder (112) is connected to the output end of the reducer (121).

3. The rocket connector plug pull-out device according to claim 2, characterized in that, The motor (122) is a DC synchronous motor, and the reducer (121) is a planetary reducer.

4. The rocket connector plug pull-out device according to claim 2, characterized in that, It also includes a wire rope assembly (3), which includes a first fixed wire rope (31) and a second fixed wire rope (32); The first end of the first fixed steel wire rope (31) is connected to the movable rod (111) of the first set of screw rods (11); The first end of the second fixed steel wire rope (32) is connected to the movable rod (111) of the second set of screw rods (11); The second end of the first fixed wire rope (31) and the second fixed wire rope (32) are both connected to the first end of the pull rope (2).

5. The rocket connector plug pull-out device according to claim 4, characterized in that, The movable rod (111) has a lug (1111), and the wire rope assembly (3) further includes a first connector (33), a second connector (34) and a third connector (35); The first end of the first fixed steel wire rope (31) is connected to a lug (1111) of the movable rod (111) via the first connector (33); The first end of the second fixed steel wire rope (32) is connected to the lug (1111) of the other movable rod (111) via the second connector (34); The second end of the first fixed wire rope (31) and the second end of the second fixed wire rope (32) are connected to the first end of the pull rope (2) through the third connector (35).

6. The rocket connector plug pull-out device according to claim 5, characterized in that, The first connector (33) includes a first mounting part (331) and a first fixing part (332). The first fixing part (332) and the first mounting part (331) are connected by a first pin. The first mounting part (331) is fixedly connected to the lug (1111) on the first set of movable rods (111). The first end of the first fixing wire rope (31) is connected to the first fixing part (332). The second connector (34) includes a second mounting part (341) and a second fixing part (342). The second fixing part (342) and the second mounting part (341) are connected by a second pin. The second mounting part (341) is fixedly connected to the lug (1111) on the second set of movable rods (111). The first end of the second fixing wire rope (32) is connected to the second fixing part (342).

7. The rocket connector plug pull-out device according to claim 5, characterized in that, The third connector (35) is a triangular buckle.

8. The rocket connector plug pull-out device according to claim 2, characterized in that, It also includes a mounting base (4), which includes a supporting base plate (41), a pair of mounting ears (42) vertically mounted on the supporting base plate (41) for mounting the cylinder (112), and the mounting base (4) also includes a supporting vertical plate (43) fixed on the supporting base plate (41) and a buckle plate (44) that cooperates with the supporting vertical plate (43). Two fixing holes (45) are provided at the contact point between the supporting vertical plate (43) and the buckle plate (44). The supporting base plate (41) is fixed on the rocket erector or launch tower. Pairs of mounting ears (42) are welded to the supporting base plate (41). The cylinder (112) of each set of screws (11) is installed between a pair of mounting ears (42), and the bottom end of each cylinder (112) is respectively connected through a fixing hole (45) to fix the cylinder (112) through the supporting plate (43) and the buckle plate (44).

9. The rocket connector plug pull-out device according to claim 1, characterized in that, It also includes a guide mechanism (5), which includes a guide base plate (51) and a fixed guide ring (52) disposed on the guide base plate (51). The fixed guide ring (52) is used to maintain or change the direction of the pulling rope (2), and the angle of change of the pulling rope (2) is less than 90 degrees relative to the original angle.

10. The rocket connector plug pull-out device according to claim 9, characterized in that, The guiding mechanism (5) further includes a movable guide ring (53) disposed on the guide base plate (51). The movable guide ring (53) is disposed on the force propagation path of the pulling rope (2) and is located after the fixed guide ring (52). The movable guide ring (53) is used to change the direction of the pulling rope (2), and the angle of change of the pulling rope (2) reaches 90 degrees relative to the original angle.

Images