Rocket erecting oil cylinder limiting device

Abstract

The utility model discloses a rocket erects oil cylinder stop device relates to space launch technology field, and oil cylinder support includes base and is located at the both sides of base's support lug, and support lug is equipped with a plurality of first threaded hole, erects oil cylinder and is equipped with the support of cylinder body and the end of cylinder body, and the support is rotatablely arranged between two support lug through pin shaft and ball hinge bearing, rocket erects oil cylinder stop device includes stop piece and two limit disc. Two limit disc are located at the both sides of support, and limit disc is located between support and support lug, and limit disc is equipped with a plurality of limit hole, and limit hole and first threaded hole one to one correspondence. Stop piece is connected with first threaded hole screw, and stop piece is used for inserting limit hole, makes limit disc and support and holds, to erect oil cylinder and carry out lateral limit, avoid erecting oil cylinder lateral swing. The above-mentioned rocket erects oil cylinder stop device, and erects oil cylinder and can carry out lateral limit through stop piece and limit disc, guarantees erecting frame and erecting oil cylinder can carry out vertical butt joint, and convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of aerospace launch technology, and in particular to a rocket erection cylinder limiting device. Background Technology

[0002] With the increasing demand for high-density, high-frequency launches in commercial spaceflight, the "three-horizontal" launch mode (a technical mode in the launch process of carrier rockets, characterized by horizontal assembly, horizontal testing, and horizontal transport, maintaining the rocket in a horizontal state throughout the assembly, testing, and transport process, and only erecting it to a vertical attitude via a hydraulic system before launch) has been widely adopted due to its low cost, rapid docking and erection, and minimal time spent at the launch site. This mode requires vertical docking between the erector and the erector cylinders. However, to improve the reliability of the erection process, the erector cylinders are often connected by ball joints. This can cause the erector cylinders to tilt laterally during docking with the erector, affecting docking accuracy and the lifespan of the erector cylinders.

[0003] Therefore, there are still shortcomings and deficiencies in the existing technology. How to provide a rocket erection cylinder limiting device that can ensure the vertical stability of the cylinder during docking and release the cylinder to allow it to swing laterally during erection, thereby improving the reliability of rocket erection, is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this utility model is to provide a limiting device for rocket erecting cylinders, which solves the technical problem that the erecting cylinder is connected by a ball joint, causing it to tilt laterally during docking with the erecting frame, thus affecting docking accuracy and the life of the erecting cylinder.

[0005] To achieve the above objectives, this utility model provides a rocket erecting cylinder limiting device. The cylinder support includes a base and lugs on both sides of the base, each lug having a plurality of first threaded holes. The erecting cylinder includes a cylinder body and a support at the end of the cylinder body, the support being rotatably disposed between two of the lugs via a pin and a ball joint bearing. The rocket erecting cylinder limiting device includes:

[0006] Two limiting discs are provided on both sides of the support. The limiting discs are located between the support and the lug. The limiting discs are provided with multiple limiting holes, and the limiting holes correspond one-to-one with the first threaded hole.

[0007] A limiting member, threadedly connected to the first threaded hole, is used to extend into the limiting hole so that the limiting plate abuts against the support to laterally limit the erecting cylinder and prevent the erecting cylinder from swinging laterally.

[0008] Preferably, it further includes a connector for moving the limiting plate closer to or away from the support.

[0009] Preferably, the limiting plate is provided with a plurality of second threaded holes, the support lug is provided with a plurality of through holes, the through holes correspond one-to-one with the second threaded holes, and the connecting member passes through the through holes and is threadedly connected to the second threaded holes.

[0010] Preferably, the limiting plate has a first central hole, the support ear has a second central hole, the pin passes through the first central hole, and the pin is connected to the support ear through the second central hole.

[0011] Preferably, the limiting hole is located at the edge of the limiting disk, and the plurality of limiting holes are evenly distributed along the circumference of the limiting disk.

[0012] Preferably, the number of limiting holes is four.

[0013] Preferably, there are two second threaded holes, which are symmetrically arranged on both sides of the first central hole.

[0014] Preferably, the limiting member and / or the connecting member are bolts.

[0015] Preferably, the second threaded hole is a through hole or a blind hole.

[0016] Compared to the aforementioned background technology, the rocket erecting cylinder limiting device provided by this utility model has two limiting discs located between the two lugs of the support and the cylinder support, respectively. The limiting member is threadedly connected to the first threaded hole of the lug, and one end of the limiting member passes through the first threaded hole and extends into the corresponding limiting hole. Through the abutment between the limiting member and the limiting disc, the limiting disc is held against the support, thereby laterally limiting the erecting cylinder, preventing the erecting cylinder from swinging laterally, facilitating vertical docking between the erecting frame and the erecting cylinder, ensuring docking accuracy. It is not only simple in structure but also easy to operate, and can quickly realize the limiting locking and unlocking of the erecting cylinder. Attached Figure Description

[0017] 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is an installation diagram of the rocket erecting cylinder limiting device provided in an embodiment of the present invention;

[0019] Figure 2 An exploded view of the rocket erecting cylinder limiting device provided in this embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the hydraulic cylinder support provided in an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the limiting disk provided in an embodiment of the present utility model;

[0022] Figure 5 A schematic diagram of the rocket erecting cylinder limiting device provided in this embodiment of the utility model (when the limit is locked).

[0023] Figure 6 This is a schematic diagram of the use of the rocket erecting cylinder limiting device provided in this embodiment of the utility model (when the limiting is released).

[0024] Figures 1 to 6 Chinese reference numerals: 10, cylinder support; 11, base; 12, lug; 121, first threaded hole; 122, through hole; 123, second center hole; 20, lifting cylinder; 21, cylinder body; 22, support; 30, pin; 40, ball joint bearing; 50, limiting component; 60, limiting plate; 61, limiting hole; 62, second threaded hole; 63, first center hole; 70, connecting component. Detailed Implementation

[0025] 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.

[0026] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] This utility model provides a limit device for rocket erection cylinder, which has a simple structure and is easy to operate. It can ensure the vertical stability of the cylinder during docking and release the limit during erection.

[0028] Please refer to this as well. Figures 1 to 6 The rocket erecting cylinder limiting device provided by this utility model includes a cylinder support 10 comprising a base 11 and lugs 12 on both sides of the base 11, the lugs 12 having a plurality of first threaded holes 121, the first threaded holes 121 being through holes; an erecting cylinder 20 comprising a cylinder body 21 and a support 22 at the end of the cylinder body 21, the support 22 being rotatably disposed between two lugs 12 via a pin 30 and a ball bearing 40; and a rocket erecting cylinder limiting device comprising a limiting member 50 and two limiting discs 60.

[0029] Two limiting discs 60 are provided on both sides of the support 22. The limiting discs 60 are located between the support 22 and the lug 12. The limiting discs 60 are provided with multiple limiting holes 61, which correspond one-to-one with the first threaded hole 121. Among them, the limiting holes 61 are blind holes.

[0030] The limiting member 50 is threadedly connected to the first threaded hole 121. The limiting member 50 is used to extend into the limiting hole 61 so that the limiting plate 60 abuts against the support 22 to laterally limit the erecting cylinder 20 and prevent the erecting cylinder 20 from swinging laterally.

[0031] In use, the two limiting discs 60 are respectively located between the two lugs 12 of the support 22 and the cylinder support 10. The limiting member 50 is threadedly connected to the first threaded hole 121 of the lug 12. One end of the limiting member 50 passes through the first threaded hole 121 and extends into the corresponding limiting hole 61. Through the abutment between the limiting member 50 and the limiting disc 60, the limiting disc 60 is held against the support 22. Through the abutment of the support 22 by the limiting discs 60 on both sides, the erecting cylinder 20 is laterally limited to prevent the erecting cylinder 20 from swinging laterally. This facilitates the vertical docking of the erecting frame and the erecting cylinder 20 and ensures docking accuracy.

[0032] With this configuration, the erecting cylinder 20 can be laterally limited by the limiting component 50 and the limiting plate 60, ensuring that the erecting frame and the erecting cylinder 20 can be vertically connected with high accuracy. It is not only simple in structure but also easy to operate, and can quickly achieve the limiting lock and unlock of the erecting cylinder 20.

[0033] Please refer to this as well. Figure 1 , Figure 2 , Figure 5 and Figure 6 The rocket erecting cylinder limiting device provided by this utility model also includes a connecting piece 70 for driving the limiting plate 60 closer to or away from the support 22.

[0034] Before the erecting frame is connected to the erecting cylinder 20, the connecting piece 70 drives the limiting plate 60 to approach the support 22, so that the limiting plate 60 contacts the support 22. Then, the limiting piece 50 makes the limiting plate 60 abut against the support 22, thereby limiting the erecting cylinder 20 laterally and preventing the erecting cylinder 20 from swinging laterally. After the erecting frame is connected to the erecting cylinder 20, the limiting piece 50 can be rotated so that the limiting piece 50 no longer abuts against the limiting plate 60, releasing the ability of the erecting cylinder 20 to swing laterally and improving the reliability of erection.

[0035] Please refer to this as well. Figures 1 to 6 The limiting plate 60 is provided with a number of second threaded holes 62, and the support ear 12 is provided with a number of through holes 122. The through holes 122 correspond one-to-one with the second threaded holes 62. The connecting piece 70 passes through the through holes 122 and is threadedly connected to the second threaded holes 62.

[0036] The connector 70 passes through the through hole 122 on the lug 12 and connects to the limiting plate 60, so that the limiting plate 60 can be moved by the connector 70, so that the limiting plate 60 moves closer to or away from the support 22.

[0037] Please refer to this as well. Figures 1 to 6 The limiting plate 60 has a first central hole 63, and the support lug 12 has a second central hole 123. The pin 30 passes through the first central hole 63 and is connected to the support lug 12 through the second central hole 123. During installation, the pin 30 passes through the two limiting plates 60 and then connects to the support lug 12 through the second central hole 123.

[0038] Please refer to this as well. Figure 2 and Figure 4 The limiting hole 61 is located on the edge of the limiting plate 60, and multiple limiting holes 61 are evenly distributed along the circumference of the limiting plate 60. Each limiting hole 61 is provided with a corresponding limiting member 50. The limiting plate 60 is held against the support 22 by multiple limiting members 50, ensuring that the erecting cylinder 20 is reliably laterally limited and preventing the erecting cylinder 20 from swinging laterally.

[0039] Multiple limiting holes 61 are evenly distributed along the circumference of the limiting plate 60. This arrangement ensures that the load borne by each limiting component 50 is relatively uniform, avoiding the situation where some limiting components 50 are overloaded while other limiting components 50 do not play their full role, thereby improving the overall connection strength and ensuring the stability and safety of the connection.

[0040] Please refer to this as well. Figure 2 and Figure 4 In this embodiment, the number of limiting holes 61 is four. In other embodiments, the number of limiting holes 61 can be three, five or more, and there is no specific limitation.

[0041] Please refer to this as well. Figure 2 and Figure 4 In this embodiment, there are two second threaded holes 62, which are symmetrically arranged on both sides of the first central hole 63. In other embodiments, the number of second threaded holes 62 may be one, three or more, and there is no specific limitation.

[0042] In this embodiment, the limiting member 50 and / or the connecting member 70 are bolts. Bolts have wide applicability, can reduce costs, and can be quickly installed and disassembled, making them convenient to use.

[0043] In this embodiment, the second threaded hole 62 is either a through hole or a blind hole. The second threaded hole 62 is used for the connector 70 to pass through the through hole 122 of the lug 12 and connect with the limiting plate 60. The connector 70 and the limiting plate 60 can be fixedly connected by the threaded engagement between the connector 70 and the second threaded hole 62. The second threaded hole 62 can be either a through hole or a blind hole.

[0044] Optionally, the limit plate 60 integrates a miniature pressure sensor for real-time monitoring of the force state of the lifting cylinder 20.

[0045] This configuration ensures that the holding force between the limiting plate 60 and the support 22 is always within the optimal range by adjusting the screw-in depth of the limiting component 50. This avoids wear of components due to excessive tightness and prevents limiting failure due to looseness, thereby improving the stability of the docking process and the service life of the device.

[0046] Optionally, the contact surfaces between the limiting plate 60 and the support 22 are provided with a nano-ceramic-based self-lubricating coating.

[0047] This design effectively reduces the coefficient of friction between the contact surfaces of the limit plate 60 and the support 22, thereby increasing their service life.

[0048] Optionally, a bushing is press-fitted into the limiting hole 61, and the inner hole of the bushing is mirror-polished. The bushing can be a zirconium oxide (ZrO2) ceramic bushing. Alternatively, a tungsten carbide composite coating can be applied to the inner surface of the limiting hole 61.

[0049] This design enhances wear resistance and prevents the limiting hole 61 from repeatedly contacting and rubbing against the end face of the limiting component 50, which could lead to scratches or dents. The bushing can be replaced separately, reducing maintenance costs.

[0050] The specific usage process of the rocket erecting cylinder limiting device provided by this utility model is as follows: The pin 30 passes sequentially through the lug 12 on one side of the cylinder support 10, the limiting plate 60, the inner ring of the ball joint bearing 40, the limiting plate 60, and the lug 12 on the other side of the cylinder support 10, completing the connection between the erecting cylinder 20 and the cylinder support 10; next, the connecting parts 70 are inserted into the through holes 122 on both sides of the cylinder support 10, and screwed into the second threaded holes 62 on the limiting plate 60 respectively. At this time, by dragging... The movable connector 70 can move the limiting plate 60 away from or towards the support 22; then, the limiting member 50 is screwed into the first threaded holes 121 on both sides of the cylinder support 10, with the end of the limiting member 50 corresponding to the limiting hole 61 of the limiting plate 60. Continuing to screw in the limiting member 50 will hold the limiting plate 60 against the support 22, thus completing the lateral limiting of the erecting cylinder 20, preventing lateral swinging of the erecting cylinder 20, and facilitating vertical docking between the erecting frame and the erecting cylinder 20. After docking, by unscrewing the limiting member 50 and then dragging the connector 70 outwards, the limiting plate 60 is moved away from the support 22, thus releasing the lateral limiting of the limiting plate 60 on the erecting cylinder 20, ensuring the reliability of the erecting cylinder 20 in erecting the rocket.

[0051] The erecting cylinder 20 can be laterally limited by the limiting component 50 and the limiting plate 60, ensuring that the erecting frame and the erecting cylinder 20 can be vertically connected. It is not only simple in structure, but also easy to operate, and can quickly realize the limiting locking and unlocking of the erecting cylinder 20.

[0052] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0053] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A rocket erection cylinder limiting device, characterized in that, The cylinder support (10) includes a base (11) and lugs (12) on both sides of the base (11), the lugs (12) having a plurality of first threaded holes (121); the erecting cylinder (20) includes a cylinder body (21) and a support (22) at the end of the cylinder body (21), the support (22) being rotatably disposed between the two lugs (12) via a pin (30) and a ball bearing (40); the rocket erecting cylinder limiting device includes: Two limiting discs (60) are provided on both sides of the support (22). The limiting discs (60) are located between the support (22) and the lug (12). The limiting discs (60) are provided with a plurality of limiting holes (61). The limiting holes (61) correspond one-to-one with the first threaded hole (121). The limiting member (50) is threadedly connected to the first threaded hole (121) and is used to extend into the limiting hole (61) so that the limiting plate (60) abuts against the support (22) to laterally limit the erecting cylinder (20) and prevent the erecting cylinder (20) from swinging laterally.

2. The rocket erecting cylinder limiting device according to claim 1, characterized in that, It also includes a connector (70) for moving the limiting plate (60) closer to or away from the support (22).

3. The rocket erecting cylinder limiting device according to claim 2, characterized in that, The limiting plate (60) is provided with a plurality of second threaded holes (62), and the support ear (12) is provided with a plurality of through holes (122). The through holes (122) correspond one-to-one with the second threaded holes (62). The connector (70) passes through the through holes (122) and is threadedly connected to the second threaded holes (62).

4. The rocket erecting cylinder limiting device according to claim 3, characterized in that, The limiting plate (60) is provided with a first central hole (63), the support ear (12) is provided with a second central hole (123), the pin (30) passes through the first central hole (63), and the pin (30) is connected to the support ear (12) through the second central hole (123).

5. The rocket erecting cylinder limiting device according to claim 1, characterized in that, The limiting hole (61) is located at the edge of the limiting disk (60), and the plurality of the limiting holes (61) are evenly distributed along the circumference of the limiting disk (60).

6. The rocket erecting cylinder limiting device according to claim 5, characterized in that, The number of limiting holes (61) is four.

7. The rocket erecting cylinder limiting device according to claim 4, characterized in that, There are two second threaded holes (62), which are symmetrically arranged on both sides of the first central hole (63).

8. The rocket erecting cylinder limiting device according to claim 2, characterized in that, The limiting member (50) and / or the connecting member (70) are bolts.

9. The rocket erecting cylinder limiting device according to claim 3, characterized in that, The second threaded hole (62) is a through hole or a blind hole.

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