A hydraulic cylinder pinning device

Abstract

The utility model embodiment provides a kind of hydraulic cylinder through pin device, comprising: auxiliary support adjusting structure (1), connect in the first cylinder body (51), for keeping the stability of the vertical hydraulic cylinder (5), and the process when the first pin hole (5211) with the second pin hole (611) is centered alignment the fine adjustment of the vertical hydraulic cylinder (5) is carried out;Positioning assembly (2), the positioning assembly (2) is used to after the upper lug (521) enters between two the lower lug plate (61), the first pin hole (5211) with the second pin hole (611) is centered alignment. Auxiliary support adjusting structure can keep the stability of the vertical hydraulic cylinder, finally through positioning assembly the first pin hole with the second pin hole is centered alignment, can greatly improve assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rocket launch, specifically to a hydraulic cylinder pin insertion device. Background Technology

[0002] To meet the surge in rocket launch capacity demand, new rocket models often employ a launch mode combining a movable launcher and a fixed launch pad for rapid launch. In this launch system, after the movable launcher (the one carrying the rocket) is transported from the technical facility to the fixed launch pad, it needs to be quickly connected to the large hydraulic cylinder on the fixed launch pad. This is achieved by using a pin to connect the double lugs of the launcher to the upper lugs of the hydraulic cylinder, enabling rapid rocket erection and launch. After launch, the pin needs to be quickly removed so that the movable launcher can be returned to the technical facility for technical preparation.

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

[0004] Due to the increasing demand for rocket carrying capacity, rockets are becoming larger and heavier, leading to a corresponding increase in the size and weight of the erector and erector cylinders. This also makes the installation of the connecting pins between the erector lugs and the upper supports of the erector cylinders increasingly difficult. Currently, the main method is manual assembly with the assistance of a truck crane. This method has the following drawbacks: First, due to limitations in operating space and equipment, its assembly efficiency is low and cannot meet the increasingly rapid launch requirements of rockets; furthermore, it poses certain risks to operators. Second, due to a lack of necessary testing methods, alignment is mostly done manually based on experience, and the pins are assembled by striking, resulting in inconsistent assembly quality and a lack of assurance. Utility Model Content

[0005] This utility model provides a hydraulic cylinder pin insertion device, which can solve the technical problem in the background art: "In the process of connecting the movable erecting frame to the large erecting cylinder on the fixed launch station, the assembly efficiency is low, and alignment is mostly done manually based on experience, resulting in inconsistent assembly quality and a lack of assurance."

[0006] To achieve the above objectives, this utility model provides a hydraulic cylinder pin-insertion device for use in a rocket launch system. After fixing the lower end of the first cylinder body of a vertically placed erecting hydraulic cylinder to the ground, the erecting hydraulic cylinder is then mounted on a movable rocket erector frame located above, thereby enabling the rocket mounted on the movable rocket erector frame to be erected and launched. The end of the first piston rod of the erecting hydraulic cylinder has an upper lug, and the upper lug has a first pin hole. The movable rocket erector frame has two downwardly parallel lower lugs, and the lower lugs have second pin holes that match the first pin hole.

[0007] The hydraulic cylinder pin-feeding device includes:

[0008] An auxiliary support and adjustment structure is connected to the first cylinder body to maintain the stability of the erection hydraulic cylinder and to fine-tune the erection hydraulic cylinder during the process of aligning the first pin hole with the second pin hole.

[0009] A positioning component is provided for centering the first pin hole and the second pin hole after the upper support ear is inserted between the two lower ear plates.

[0010] The above technical solution has the following beneficial effects: In the embodiments of this utility model, the auxiliary support adjustment structure can maintain the stability of the erection hydraulic cylinder. After the upper support ear enters between the two lower ear plates, the position of the erection hydraulic cylinder is finely adjusted by the auxiliary support adjustment structure. Finally, the first pin hole and the second pin hole are aligned by the positioning component. Compared with the manual alignment based on experience in the prior art, the assembly efficiency can be greatly improved, and the rocket can be quickly erected and launched. It can adapt to the increasingly fast rocket launch requirements and avoid the possible dangers of workers during operation. 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 a front view of the hydraulic cylinder pin-feeding device (containing only one lower ear plate) according to an embodiment of this utility model;

[0013] Figure 2 This is a left view of the hydraulic cylinder pin-threading device according to an embodiment of the present invention.

[0014] The reference numerals in the attached figures are as follows:

[0015] 1. Auxiliary support and adjustment structure; 2. Positioning component; 4. Power mechanism; 5. Erection hydraulic cylinder; 6. Rocket movable erector; 7. Mounting base; 8. Connecting shaft; 9. Pin; 3. Rotary shaft; 10. Fixed base;

[0016] 11. Second cylinder block; 12. Second piston rod;

[0017] 21. Horizontal control proximity switch; 22. Vertical control proximity switch;

[0018] 41. Electric motor; 42. Gearbox;

[0019] 51. First cylinder block; 52. First piston rod;

[0020] 61. Lower ear plate;

[0021] 521. Upper ear;

[0022] 611. Second pin hole;

[0023] 5211, First pin hole. Detailed Implementation

[0024] 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.

[0025] like Figure 1 and Figure 2 As shown, in conjunction with an embodiment of this utility model, a hydraulic cylinder pin-threading device is provided. This device is used in a rocket launch system to fix the lower end of the first cylinder body 51 of a vertically placed erecting hydraulic cylinder 5 to the ground, and then install the erecting hydraulic cylinder 5 on a movable rocket erector 6 located above it to achieve the erection and launch of the rocket mounted on the movable rocket erector 6. The end of the first piston rod 52 of the erecting hydraulic cylinder 5 has an upper support lug 521, and the upper support lug 521 has a first pin hole 5211. The movable rocket erector 6 has two downwardly parallel lower ear plates 61, and the lower ear plates 61 have second pin holes 611 that match the first pin hole 5211.

[0026] The hydraulic cylinder pin-feeding device includes:

[0027] An auxiliary support adjustment structure 1 is connected to the first cylinder body 51 and is used to maintain the stability of the erection hydraulic cylinder 5 and to fine-tune the erection hydraulic cylinder 5 during the process of centering the first pin hole 5211 and the second pin hole 611.

[0028] The hydraulic cylinder pin-threading device further includes a positioning component 2 for center-aligning the first pin hole 5211 and the second pin hole 611. The positioning component 2 is used to center-align the first pin hole 5211 and the second pin hole 611 after the upper support ear 521 enters between the two lower ear plates 61.

[0029] In the launch system, after the rocket mobile erector 6 (referring to the rocket mobile erector that carries the rocket) is transferred from the technical workshop to the fixed launch position, the erection hydraulic cylinder 5 is the main actuator for the rocket mobile erector 6 to be erected before launch and leveled after launch. Therefore, it is necessary to quickly connect the rocket mobile erector 6 to the large erection hydraulic cylinder 5 on the fixed launch position, that is, to connect the upper support lug 521 and the two lower lug plates 61 using the pin shaft 9.

[0030] First, the upper support lug 521 of the erecting hydraulic cylinder 5 needs to be raised and inserted between the two lower lug plates 61 (the lower lug plates 61 can be welded to the main body of the rocket movable erector 6 and are the main load-bearing structure of the rocket movable erector 6), and the centers of the first pin hole 5211 and the second pin hole 611 are aligned. In this embodiment of the utility model, the auxiliary support adjustment structure 1 can maintain the stability of the erecting hydraulic cylinder 5. After the upper support lug 521 is inserted between the two lower lug plates 61, the position of the erecting hydraulic cylinder 5 is finely adjusted by the auxiliary support adjustment structure 1. Finally, the first pin hole 5211 and the second pin hole 611 are aligned by the positioning component. Compared with the manual alignment based on experience in the prior art, this can greatly improve the assembly efficiency, realize the rapid erection and launch of the rocket, adapt to the increasingly rapid rocket launch requirements, and avoid potential dangers for workers.

[0031] Preferably, the auxiliary support adjustment structure 1 is an auxiliary hydraulic cylinder. The end of the second cylinder body 11 of the auxiliary hydraulic cylinder is fixed to the ground by the mounting base 7, and the second piston rod 12 of the auxiliary hydraulic cylinder is connected to the first cylinder body 51 by the connecting shaft 8.

[0032] The lower end of the second cylinder body 11 of the auxiliary hydraulic cylinder is fixed to the mounting base 7, serving as a fixed point for the rotation of the auxiliary hydraulic cylinder. The upper end of the second piston rod 12 is connected to the erecting hydraulic cylinder 5 via a connecting shaft 8, providing temporary support for the erecting hydraulic cylinder 5 when it is installed on the rocket's movable erector frame 6, ensuring the stability of the large erecting hydraulic cylinder 5. Furthermore, before the first piston rod 52 of the erecting hydraulic cylinder 5 extends, the extension of the second piston rod 12 of the auxiliary hydraulic cylinder can be controlled to adjust the erecting hydraulic cylinder 5 to be aligned vertically, i.e., in the Y-axis direction.

[0033] Preferably, the cross-section of the first pin hole 5211 is parallel to or coincides with the cross-section of the second pin hole 611. Then, the lateral (X-axis) position of the vertical hydraulic cylinder 5 can be adjusted by extending and retracting the second piston rod 12 of the auxiliary hydraulic cylinder, assisting in center alignment of the first pin hole 5211 and the second pin hole 611. Compared to manual alignment based on experience, this greatly improves assembly efficiency.

[0034] Preferably, the auxiliary support adjustment structure 1 is an electric cylinder. The end of the third cylinder of the electric cylinder is fixed to the ground by the mounting base 7. The electric cylinder includes a lead screw, which is connected to the first cylinder 51 via a connecting shaft 8. The auxiliary support adjustment structure 1 can also be an electric cylinder to support the erecting hydraulic cylinder 5, thereby ensuring the stability of the large erecting hydraulic cylinder 5. The plane formed by the electric cylinder and the erecting hydraulic cylinder 5 is parallel to or coincides with the transverse plane of the second pin hole 611. The transverse position of the erecting hydraulic cylinder 5, i.e., the X-axis direction, can also be adjusted by the extension and retraction of the lead screw, assisting in the center alignment of the first pin hole 5211 and the second pin hole 611. Compared with manual alignment based on experience, this can greatly improve assembly efficiency. The mechanism for controlling the electric cylinder is prior art, as are the mechanisms for controlling the extension and retraction of the first piston rod 52 of the erecting hydraulic cylinder 5 and the second piston rod 12 of the auxiliary hydraulic cylinder.

[0035] Preferably, the positioning component 2 includes a lateral control proximity switch 21 disposed inside the lower ear plate 61, which is used to fine-tune the lateral position of the erecting hydraulic cylinder 5 by means of the auxiliary support adjustment structure 1 after the first pin hole 5211 is approximately aligned with the center of the second pin hole 611 and stops, so that the upper support ear 521 enters the first trigger range and triggers the lateral control proximity switch 21 to stop the fine-tuning of the erecting hydraulic cylinder 5.

[0036] The erecting hydraulic cylinder 5 is the main actuator for the erection and leveling of the rocket's movable erector frame 6. The lower end of the first cylinder body 51 of the erecting hydraulic cylinder 5 is fixedly mounted on the fixed base 10 via the rotary shaft 3, serving as the fixed point for the rotation of the erecting hydraulic cylinder 5. The upper support lug 521 of the first piston rod 52 is connected to the lower lug plate 61 of the rocket's movable erector frame 6 via the pin shaft 9, serving as the movable point for the rotation of the erecting hydraulic cylinder 5.

[0037] During installation, the erecting hydraulic cylinder 5 is aligned vertically, i.e., along the Y-axis, by controlling the extension of the second piston rod 12 of the auxiliary hydraulic cylinder. Then, the first piston rod 52 of the erecting hydraulic cylinder 5 is extended. After visually confirming that the center (central axis) of the first pin hole 5211 is approximately aligned with the center of the second pin hole 611, the first piston rod 52 stops moving. Then, the lateral position (position in the X-axis direction) of the erecting hydraulic cylinder 5 is finely adjusted by the auxiliary support adjustment structure 1 (i.e., by the extension and retraction of the second piston rod 12 of the auxiliary hydraulic cylinder, or by the extension and retraction of the lead screw of the electric cylinder) until the upper support lug 521 can trigger the lateral control proximity switch 21. This indicates that the distance between the first pin hole 5211 and the lateral control proximity switch 21 meets the first distance set in advance. This first distance (first trigger range) is determined according to the center of the first pin hole 5211 and the position of the lateral control proximity switch 21. According to the triggering principle of the proximity switch, when the upper support lug 521 enters the first trigger range of the lateral control proximity switch 21, the center of the first pin hole 5211 is precisely aligned with the center of the second pin hole 611 in the lateral direction. The alignment error is much better than manual alignment, which facilitates the smooth installation of the pin shaft 9 later.

[0038] Preferably, the positioning component 2 further includes a vertical control proximity switch 22 disposed inside the lower ear plate 61, which is used to fine-tune the vertical position of the erecting hydraulic cylinder 5 through the auxiliary support adjustment structure 1 after the horizontal control proximity switch 21 is triggered, so that the upper support ear 521 enters the second trigger range and triggers the vertical control proximity switch 22 to stop the fine-tuning of the erecting hydraulic cylinder 5.

[0039] Furthermore, the vertical position (in the Y-axis direction) of the erecting hydraulic cylinder 5 is then finely adjusted by the auxiliary support adjustment structure 1 (i.e., by extending or retracting the second piston rod 12 of the auxiliary hydraulic cylinder, or by extending or retracting the lead screw of the electric cylinder) until the upper support lug 521 can trigger the vertical control proximity switch 22. This indicates that the distance between the first pin hole 5211 and the vertical control proximity switch 22 meets the pre-set second distance. This second distance (second trigger range) is determined based on the center of the first pin hole 5211 and the position of the vertical control proximity switch 22. According to the triggering principle of the proximity switch, when the upper support lug 521 enters the second trigger range of the vertical control proximity switch 22, the center of the first pin hole 5211 is precisely aligned horizontally with the center of the second pin hole 611 vertically. The alignment error is much better than manual alignment, which facilitates the smooth installation of the pin shaft 9 laterally.

[0040] Preferably, the hydraulic cylinder pin-threading device further includes a power mechanism 4 for mounting the pin 9 on the outside of the lower ear plate 61. The power mechanism 4 includes a motor 41 and a reducer 42 connected to the motor 41. The reducer 42 is mounted on the outside of the lower ear plate 61 and can drive the pin 9 to extend outward and pass through the second pin hole 611 of the first lower ear plate 61, the first pin hole 5211 of the upper support ear 521, and the second pin hole 611 of the second lower ear plate 61 in sequence.

[0041] The power mechanism 4, acting as the actuator, aligns the center of the first pin hole 5211 of the upper support lug 521 of the erecting hydraulic cylinder 5 with the center of the second pin hole 611 of the lower lug 61. The motor 41 drives the reducer 42 in both forward and reverse rotation, which in turn controls the extension and retraction of the pin 9 (with a chamfered front end), thus installing the pin 9 into the first pin hole 5211 and the second pin hole 611. This quickly connects the erecting hydraulic cylinder 5 to the rocket's movable erector frame 6. At this point, the motor 41 is de-energized, and the connecting shaft 8 is removed to disconnect the erecting hydraulic cylinder 5 from the auxiliary hydraulic cylinder or electric cylinder, allowing the rocket's movable erector frame 6 to be erected, thus initiating the rocket launch phase. Compared to the existing technology where the pin assembly is done manually by striking, this embodiment offers superior assembly quality, ensuring high reliability and enabling rapid rocket erection and launch.

[0042] After the launch is completed, the launch mission is accomplished. Once the rocket's movable erector frame 6 returns to its horizontal position, the connecting shaft 8 is reinstalled to connect the erection hydraulic cylinder 5 and the auxiliary hydraulic cylinder or electric cylinder. The control motor 41 reverses its transmission, driving the pin shaft 9 to retract via the reducer 42. The pin shaft 9 passes through the second lower ear plate 61, the upper support ear 521 of the erection hydraulic cylinder 5, and the first lower ear plate 61 in sequence before separating into its final position. At this point, the motor 41 is de-energized, and the rocket's movable erector frame 6 can be horizontally transported so that it can be returned to the technical workshop for technical preparation.

[0043] Preferably, the motor 41 is a three-phase asynchronous motor, a servo motor, or a synchronous motor.

[0044] In summary, the large hydraulic cylinder pin-connecting device of this utility model, by adding a horizontal control proximity switch 21 and a vertical control proximity switch 22 to the lower ear plate 61 of the rocket's movable erector 6, and by adding a motor 41 and a reducer 42 to the tail of the pin 9, can achieve accurate positioning when connecting the pin 9 between the lower ear plate 61 of the rocket's movable erector 6 and the upper support ear 521 of the erecting hydraulic cylinder. It can control the automatic installation of the pin 9 and achieve rapid disassembly of the pin 9 after the launch mission is completed. This greatly improves the installation efficiency of the pin 9, ensures the consistency of assembly quality, and meets the requirements for rapid rocket launch. The entire device has a high degree of automation, is simple to operate, and highly efficient, meeting the requirements for rapid rocket launch.

[0045] It should be understood that 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 interpreted 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 present invention is in a state with fewer features than all of the disclosed individual embodiments. Therefore, the appended claims are hereby explicitly incorporated into the detailed description, wherein each claim stands alone as a preferred embodiment of the present invention.

[0046] 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.

[0047] 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."

[0048] 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 hydraulic cylinder pin-mounting device for mounting a lifting hydraulic cylinder (5) on a rocket movable erector (6) located above, the lifting hydraulic cylinder (5) comprising a first cylinder body (51) with its lower end fixed to the ground, the lifting hydraulic cylinder (5) further comprising an upper lug (521) at the end of a first piston rod (52), the upper lug (521) having a first pin hole (5211); the rocket movable erector (6) having two lower lug plates (61) arranged parallel to each other downward, the lower lug plates (61) having a second pin hole (611) matching the first pin hole (5211); Its features are, The hydraulic cylinder pin-feeding device includes an auxiliary support adjustment structure (1), which is connected to the first cylinder body (51). The hydraulic cylinder pin-threading device also includes a positioning component (2) for centering the first pin hole (5211) and the second pin hole (611).

2. The hydraulic cylinder pin-threading device according to claim 1, characterized in that, The auxiliary support adjustment structure (1) is an auxiliary hydraulic cylinder. The end of the second cylinder body (11) of the auxiliary hydraulic cylinder is fixed to the ground by the mounting base (7). The second piston rod (12) of the auxiliary hydraulic cylinder is connected to the first cylinder body (51) by the connecting shaft (8).

3. The hydraulic cylinder pin-feeding device according to claim 2, characterized in that, The cross-section of the first pin hole (5211) is parallel to or coincides with the cross-section of the second pin hole (611).

4. The hydraulic cylinder pin-feeding device according to claim 1, characterized in that, The auxiliary support adjustment structure (1) is an electric cylinder. The end of the third cylinder of the electric cylinder is fixed to the ground by a mounting base (7). The electric cylinder includes a lead screw, which is connected to the first cylinder (51) by a connecting shaft (8).

5. The hydraulic cylinder pin-threading device according to claim 1, characterized in that, The positioning component (2) includes a lateral control proximity switch (21) located inside the lower ear plate (61). After the first pin hole (5211) is approximately aligned with the center of the second pin hole (611), the auxiliary support adjustment structure (1) is used to fine-tune the lateral position of the erecting hydraulic cylinder (5) so that the upper support ear (521) enters the first trigger range and triggers the lateral control proximity switch (21) to stop the fine-tuning of the erecting hydraulic cylinder (5).

6. The hydraulic cylinder pin-feeding device according to claim 5, characterized in that, The positioning component (2) also includes a vertical control proximity switch (22) located inside the lower ear plate (61), which is used to finely adjust the vertical position of the erecting hydraulic cylinder (5) through the auxiliary support adjustment structure (1) after the horizontal control proximity switch (21) is triggered.

7. The hydraulic cylinder pin-feeding device according to claim 1, characterized in that, It also includes a power mechanism (4) for mounting a pin (9) on the outside of the lower ear plate (61). The power mechanism (4) includes a motor (41) and a reducer (42) connected to the motor (41). The reducer (42) is mounted on the outside of the lower ear plate (61) and can drive the pin (9) to extend outward and pass through the second pin hole (611) of the first lower ear plate (61), the first pin hole (5211) of the upper support ear (521), and the second pin hole (611) of the second lower ear plate (61) in sequence.

8. The hydraulic cylinder pin-threading device according to claim 7, characterized in that, The motor (41) is a three-phase asynchronous motor, a servo motor, or a synchronous motor.

Images