Launch platform support arm structure and rocket launch platform device

Abstract

An embodiment of the present invention provides a launch pad support arm structure and a rocket launch pad device, wherein the launch pad support arm structure comprises a driving device, a sliding track and a support arm assembly; the sliding track is used to be fixed on a workbench of the launch pad; the support arm assembly comprises an arm body and a mounting plate arranged at the bottom of the arm body; the driving device is drivingly connected to the support arm assembly, and is used to drive the support arm assembly to move the mounting plate along the guide direction of the sliding track. The rocket launch pad device comprises the above-mentioned launch pad support arm structure, and also comprises a support leg and a workbench arranged on the support leg; the launch pad support arm structure is fixed on the workbench. The launch pad support arm structure and the rocket launch pad device provided by the embodiment of the present invention can meet the normal erection requirements of the rocket in the three-level test launch mode, avoid excessive support height of the rocket, and make the launch pad structure simple and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of rocket launching equipment, and in particular to a launching platform support arm structure and a rocket launching platform device. Background Art

[0002] Before the rocket is launched, the launch pad is used to vertically support and fix the rocket to complete the vertical adjustment of the rocket body. For rockets of the same model or several types with the same rocket body diameter, the diameter of the distribution circle of the arrow foot is a constant value, but in the current prior art, the rocket support arm and the workbench surface of the launch pad are fixedly connected and cannot be adjusted. Therefore, for rockets with different rocket body diameters, it is usually necessary to manufacture launch pads with different structural sizes, or add an adapter frame structure to the existing launch pad to adapt to the different rocket foot distribution circle diameters.

[0003] In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art:

[0004] For rockets in the three-level (horizontal transfer, horizontal assembly, and horizontal testing) test and launch mode, the rocket needs to be parked horizontally on the launch pad (or erection arm) before erection. When the rocket is erected, the erection cylinder extends, driving the launch pad to rotate around its rotation axis until the rocket is in a vertical state. If the structural parameters of the erection system are not properly selected, or the size of the rocket engine tail nozzle extending beyond the tail end of the rocket is too long, then during the erection movement, interference will occur between the rocket engine tail nozzle and the support arm of the launch pad, resulting in the rocket being unable to erect normally, or causing damage to the rocket engine nozzle.

[0005] At the same time, in order to adapt to the arrow foot distribution circle diameters of rockets of different diameters, the existing technology needs to add a transition frame structure to the existing launch pad, which not only makes the overall structure of the launch pad more complicated and reduces the stability of the launch pad, but also greatly increases the supporting height of the rocket, which also brings many inconveniences to the design and operation of the launch equipment. Summary of the invention

[0006] In view of this, the purpose of the embodiments of the present invention is to provide a launch pad support arm structure and a rocket launch pad device to solve the problems existing in the prior art that the rocket in the three-level test launch mode cannot be erected normally, the rocket support height is high, and the launch pad structure is complex.

[0007] In the first aspect, an embodiment of the present invention provides a launch platform support arm structure, including a driving device, a sliding rail and a support arm assembly; the sliding rail is used to be fixed on a workbench of the launch platform; the support arm assembly includes an arm body and a mounting plate arranged at the bottom of the arm body; the driving device is drivingly connected to the support arm assembly, and is used to drive the support arm assembly to move the mounting plate along the guide direction of the sliding rail.

[0008] Further, the sliding track includes a first pressure plate, a second pressure plate and a base plate; the first pressure plate and the second pressure plate are arranged in parallel on the base plate, and the first pressure plate and the second pressure plate form a track for guidance; the driving device is fixed to the base plate, and is used to drive the support arm assembly to move the mounting plate on the base plate along the guiding direction of the track formed by the first pressure plate and the second pressure plate.

[0009] Furthermore, the sliding track also includes a first pad and a second pad, the first pad is arranged between the first pressure plate and the bottom plate, and the side wall of the first pressure plate close to the second pressure plate protrudes from the first pad to form a first groove; the second pad is arranged between the second pressure plate and the bottom plate, and the side wall of the second pressure plate close to the first pressure plate protrudes from the second pad to form a second groove; the first groove and the second groove form a track for guiding; the two ends of the mounting plate are respectively inserted into the first groove and the second groove.

[0010] Furthermore, the driving device includes one or more of a linear module, a cylinder, a hydraulic cylinder, and a lead screw.

[0011] Furthermore, when the driving device is a lead screw, it includes a sliding nut, a screw rod and a fixed seat; the fixed seat is fixed to the base plate, one end of the screw rod is rotatably connected to the fixed seat, and the other end is threadedly connected to the sliding nut, and the sliding nut is fixed to the support arm assembly.

[0012] Furthermore, a positioning block is provided at the bottom of the fixing seat, and a positioning hole is correspondingly provided on the bottom plate, and the positioning block is inserted into the positioning hole.

[0013] Furthermore, a detachable connection structure is provided on the mounting plate, and the connection structure is used to fix the support arm assembly to the base plate.

[0014] Furthermore, the launch platform support arm structure also includes a windproof device, and a supporting screw sleeve is provided on the top of the arm body. The windproof device is fixedly connected to the arm body through the supporting screw sleeve.

[0015] In a second aspect, an embodiment of the present invention provides a rocket launch platform device, including the above-mentioned launch platform support arm structure, and also including support legs and a workbench arranged on the support legs; the launch platform support arm structure is fixed on the workbench.

[0016] Furthermore, the number of the supporting legs and the supporting arm structure are both 4, the supporting legs are arranged correspondingly to the supporting arm structure, and the supporting legs can be extended and retracted up and down to adjust the supporting height.

[0017] The above technical scheme has the following beneficial effects: the launch platform support arm structure of the embodiment of the present invention, its support arm assembly can be reciprocated under the drive of the driving device, so as to change the size of the fixed circle used by the launch platform to fix the rocket, the diameter of the fixed circle corresponds to the distribution circle diameter of the rocket foot, and the movable support arm assembly enables the launch platform to adapt to a variety of rockets with different rocket body diameters, without adding a transfer frame structure, so the support height of the rocket will not be increased, and its structure is compact and stable. At the same time, for rockets in the three-level test launch mode, the support arm assembly can be moved outward when the rocket is erected to avoid interference with the rocket engine tail nozzle when the rocket is erected. After the rocket is erected, the support arm assembly can be moved inward to the position directly below the foot, and the rocket will then descend, which can not only support the rocket, but also avoid the situation of interference with the rocket engine tail nozzle when the rocket is erected, ensuring the normal operation of the rocket erection work and broadening the types of rockets adapted to the launch platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic structural diagram of a rocket launch platform device according to an embodiment of the present invention.

[0020] Figure 2 It is a schematic structural diagram of a launch platform support arm structure according to an embodiment of the present invention.

[0021] Figure 3 Schematic diagram of the structure of the sliding track according to the embodiment of the present invention.

[0022] Figure 4 yes Figure 3 A is an enlarged structural diagram of FIG.

[0023] Figure 5 yes Figure 3 Schematic diagram of the enlarged structure at B.

[0024] Figure 6 It is a schematic structural diagram of a support arm assembly according to an embodiment of the present invention.

[0025] Figure 7 Schematic diagram of the structure of the driving device of the embodiment of the present invention.

[0026] Figure 8 It is a schematic diagram of the main structure of the driving device of an embodiment of the present invention.

[0027] Fig. 9 yes Figure 8 Schematic diagram of the partial cross-sectional structure in CC direction.

[0028] Fig.10 It is a schematic diagram of the assembly structure of the driving device, the support arm assembly and the base plate of an embodiment of the present invention.

[0029] The meanings of the symbols in the accompanying drawings are as follows:

[0030] 10. Outrigger; 20. Workbench; 30. Launch platform support arm structure; 40. Rocket;

[0031] 31. Windproof device; 311. Clamping assembly; 312. Support plate; 32. Support arm assembly; 321. Arm body; 322. Fixing hole; 323. Mounting plate; 324. Support screw sleeve; 33. Sliding track; 331. First pressing plate; 332. First pad; 333. Bottom plate; 334. Positioning hole; 335. Second pressing plate; 336. First groove; 337. Second pad; 338. Second groove; 34. Driving device; 341. Sliding nut; 342. Screw; 3421. Flange; 343. Fixed seat; 344. Copper sleeve; 345. Retaining ring. DETAILED DESCRIPTION

[0032] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed in order to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention. In the drawings and the following description, at least part of the known structures and technologies are not shown in order to avoid unnecessary ambiguity of the present invention; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0033] like Figure 1As shown, the rocket launch platform device of this embodiment includes a support leg 10, a workbench 20 arranged on the support leg 10, and a launch platform support arm structure 30 fixed to the upper surface of the workbench 20. In this embodiment, the number of the support legs 10 and the launch platform support arm structure 30 is 4, and the support legs 10 and the launch platform support arm structure 30 are arranged correspondingly. The support legs 10 can be telescopically adjusted up and down to adjust the support height. The support legs 10 are used to support the workbench 20 and adjust the horizontal height of the workbench 20 to ensure the verticality of the rocket body when launching. The support legs 10 can use a telescopic jack structure to adjust the support height to adjust the verticality of the rocket body so that the synthetic thrust axis of the engine is perpendicular to the horizontal plane of the earth. Specifically, according to actual needs, all four launch platform support arm structures 30 can be selected to be movable, or two can be selected to be fixed (traditional structure), and the other two can be configured to be movable (provided with sliding tracks 33).

[0034] like Figure 2 and Fig.10 As shown, the launch platform support arm structures 30 of this embodiment are all movable, and the four launch platform support arm structures 30 are evenly distributed along the circumference of the fixed circle. Each launch platform support arm structure 30 includes a driving device 34, a sliding track 33 and a support arm assembly 32.

[0035] like Figures 3 to 5 As shown, the sliding track 33 is used to be fixed on the workbench 20 of the launch platform. The sliding track 33 of this embodiment includes a first pressing plate 331, a second pressing plate 335, a bottom plate 333, a first pad 332 and a second pad 337. The first pressing plate 331 and the second pressing plate 335 are arranged in parallel on the bottom plate 333, the first pad 332 is arranged between the first pressing plate 331 and the bottom plate 333, the side wall of the first pressing plate 331 close to the second pressing plate 335 protrudes from the first pad 332 to form a first groove 336; the second pad 337 is arranged between the second pressing plate 335 and the bottom plate 333, the side wall of the second pressing plate 335 close to the first pressing plate 331 protrudes from the second pad 337 to form a second groove 338; the first groove 336 and the second groove 338 form a track for guiding; the two ends of the mounting plate 323 are respectively inserted into the first groove 336 and the second groove 338. The extension direction of the first groove 336 and the second groove 338 is the guide direction of the track, and the guide direction of the sliding track 33 is the radial direction of the fixed circle. In other embodiments, the first pressing plate 331 and the first pad 332 can also be designed as an integrated structure, and the second pressing plate 335 and the second pad 337 can be designed as an integrated structure, or the entire sliding track 33 can also be designed as an integrated structure, as long as it has a guiding function, the specific structural form is not limited.

[0036] like Figure 6As shown, the support arm assembly 32 includes an arm body 321 and a mounting plate 323 disposed at the bottom of the arm body 321. The outer edge of the mounting plate 323 is protruding from the arm body 321, and the two opposite sides of the mounting plate 323 are respectively inserted into the first groove 336 and the second groove 338. A detachable connecting structure is provided on the mounting plate 323, and the connecting structure is used to fix the support arm assembly 32 to the bottom plate 333. The connecting structure can be a connecting bolt, etc., and the connecting structure is used to fix the support arm assembly 32 to the bottom plate 333 after the position of the support arm assembly 32 is adjusted, so as to play a role in stabilizing the support of the rocket 40.

[0037] like Figures 7 to 9 As shown, the driving device 34 is connected to the support arm assembly 32, and is used to drive the support arm assembly 32 to move the mounting plate 323 along the guide direction of the sliding track 33. The driving device 34 includes one or more of a linear module, a cylinder, a hydraulic cylinder, and a lead screw. In this embodiment, the driving device 34 is a lead screw, specifically including a sliding nut 341, a screw 342, a fixing seat 343, a copper sleeve 344 and a retaining ring 345. The copper sleeve 344 is installed in the mounting hole of the fixing seat 343, and is fixedly connected to the fixing seat 343 by fasteners. The fixing seat 343 is fixed to the bottom plate 333 by connecting bolts. In order to facilitate the alignment of the fixing seat 343 during installation, a positioning block can be set at the bottom of the fixing seat 343, and a positioning hole 334 is correspondingly set on the bottom plate 333. During installation, the positioning block can be inserted into the positioning hole 334 for positioning, and then the fixing seat 343 can be fixed by connecting bolts. Specifically, the positioning block and the positioning hole 334 can be selected as a square structure. One end of the screw rod 342 in this embodiment is inserted into the copper sleeve 344, and the other end is threadedly connected with the sliding nut 341, wherein one end inserted into the copper sleeve 344 is provided with a flange 3421, and the flange 3421 abuts against the side wall of the fixing seat 343 close to the support arm assembly 32. At the end of the screw rod 342 extending out of the copper sleeve 344, a retaining ring 345 is fixed to the end of the screw rod 342 through a connecting piece, and the screw rod 342 is axially limited by the retaining ring 345 and the flange 3421. The arm body 321 of the support arm assembly 32 is provided with a fixing hole 322 at a position corresponding to the screw rod 342, and the sliding nut 341 is fixed at the fixing hole 322. The end of the screw rod 342 close to the fixing seat 343 is provided with a relative flat portion, or a square cross section is machined at the end by milling, so as to facilitate the use of tools such as wrenches to rotate the screw rod 342. Alternatively, the screw rod 342 can also be connected to a power device, such as a power device such as a reduction motor, and the screw rod 342 is driven by the power device. When the screw rod 342 rotates, the screw rod 342 drives the sliding nut 341 to move, thereby driving the support arm assembly 32 fixed thereto to move together, so as to adjust the position of the support arm assembly 32.

[0038] like Figure 2As shown, the launch platform support arm structure 30 of this embodiment also includes a windproof device 31, which includes a support plate 312 and a clamping assembly 311 arranged on the support plate 312. A support screw sleeve 324 is provided on the top of the arm body 321, and the windproof device 31 is fixedly connected to the arm body 321 through the support screw sleeve 324. The support plate 312 of the windproof device 31 directly supports the arrow foot of the rocket 40, and the clamping assembly 311 is used to clamp the arrow foot, thereby fixing the rocket 40.

[0039] The rocket launch pad device and the launch pad support arm structure 30 of the present embodiment can meet the requirements for the expansion of the diameter size of the rocket body of the future rocket 40. By providing a movable support arm assembly 32, it can adapt to the foot distribution circle diameters of rockets 40 of different sizes. There is no need to add an adapter frame structure, and the support height of the rocket 40 will not be increased, which facilitates the design and operation of the launch equipment.

[0040] The sliding support arm assembly 32 of this embodiment can realize the support arm assembly 32 and the support plate 312 sliding inward and outward along the diameter direction of the rocket 40. Before the rocket 40 is erected, the two support arm assemblies 32 at the interference position with the engine tail nozzle of the rocket 40 are slid outward along the diameter direction of the rocket 40, and then the rocket 40 is erected. After the rocket 40 is erected, the support arm slides inward, moves the support plate 312 to the position just below the arrow foot, and the rocket 40 is lowered again to dock with the support plate 312.

[0041] The rated load of the rocket launch platform device of this embodiment takes into account the future models of rockets. If the diameter of the rocket body increases in the future, the position of the sliding support arm assembly 32 can be adjusted to make the diameter of the distribution circle (fixed circle) of the support plate 312 larger, so as to meet the vertical support requirements of the new large-diameter rocket, without adding other devices such as the adapter frame structure.

[0042] The installation method of the arm body 321 assembly of the present embodiment is as follows: use fasteners to fix the first pressure plate 331, the second pad 337 and the bottom plate 333, and then fix the second pressure plate 335, the second pad 337 and the bottom plate 333 to form a first groove 336 and a second groove 338; then insert the two sides of the mounting plate 323 of the arm body 321 into the first groove 336 and the second groove 338 respectively, and screw the threaded end of the screw rod 342 into the sliding nut 341; insert the copper sleeve 344 into the mounting hole in the middle of the fixing seat 343, and use fasteners to fix the copper sleeve 344 and the fixing seat 343; the copper sleeve 344 and the fixing seat 343 are fixedly connected. The fixed seat 343 is inserted into the end of the screw rod 342 provided with a flange 3421, and the positioning block at the lower end of the fixed seat 343 is inserted into the positioning hole 334 of the base plate 333. The fixed seat 343 and the base plate 333 are fixedly connected by a connecting piece, and the retaining ring 345 is inserted into the screw rod 342 from the end of the side provided with the flange 3421, and the retaining ring 345 is fixed to the screw rod 342 by a cylindrical pin; the screw rod 342 is driven by a wrench or a power device to check whether the arm body 321 slides smoothly; when the arm body 321 assembly moves to an appropriate position after the avoidance is completed, the mounting plate 323 of the arm body 321 assembly is fixed to the base plate 333 by fasteners.

[0043] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first, second or third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "install, connect, connect" should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection or an integral connection; it can also be a mechanical connection, an electrical connection or a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A rocket launch platform device, characterized in that: The invention comprises four movable launch platform support arm structures (30), and also comprises support legs (10) and a workbench (20) arranged on the support legs (10); the launch platform support arm structure (30) is fixed on the workbench (20); the launch platform support arm structure (30) comprises a driving device (34), a sliding rail (33) and a sliding support arm assembly (32); the sliding rail (33) is used to be fixed on the workbench (20) of the launch platform; the support arm assembly (32) comprises an arm The driving device (34) is connected to the supporting arm assembly (32) and is used to drive the supporting arm assembly (32) to move the mounting plate (323) along the guide direction of the sliding track (33), thereby changing the size of the fixing circle for fixing the rocket (40) so that the rocket launch platform device can adapt to rockets (40) with different body diameters, and the rocket (40) is a three-level test launch mode rocket; The sliding track (33) comprises a first pressing plate (331), a second pressing plate (335) and a bottom plate (333); the first pressing plate (331) and the second pressing plate (335) are arranged in parallel on the bottom plate (333), and the first pressing plate (331) and the second pressing plate (335) form a track for guidance; the driving device (34) is fixed on the bottom plate (333) and is used to drive the supporting arm assembly (32) so that the mounting plate (323) moves on the bottom plate (333) along the guiding direction of the track formed by the first pressing plate (331) and the second pressing plate (335); The sliding track (33) further comprises a first pad (332) and a second pad (337), wherein the first pad (332) is arranged between the first pressing plate (331) and the bottom plate (333), and the side wall of the first pressing plate (331) close to the second pressing plate (335) protrudes from the first pad (332) to form a first groove (336); the second pad (337) is arranged between the second pressing plate (335) and the bottom plate (333), and the side wall of the second pressing plate (335) close to the second pressing plate (335) protrudes from the first pad (332) to form a first groove (336); A side wall of a pressure plate (331) is protruding from the second pad (337) to form a second groove (338); the first groove (336) and the second groove (338) form a guide track; two ends of the mounting plate (323) are respectively inserted into the first groove (336) and the second groove (338); the guide direction of the sliding track (33) is the radial direction of a fixed circle for fixing the rocket (40), and the diameter of the fixed circle corresponds to the distribution circle diameter of the arrow foot of the rocket (40); The mounting plate (323) is provided with a detachable connection structure, and the connection structure is used to fix the support arm assembly (32) to the base plate (333) after the position of the support arm assembly (32) is adjusted, so as to provide stable support for the rocket (40); The launch platform support arm structure (30) further comprises a windproof device (31), the windproof device (31) comprising a support plate (312) and a clamping assembly (311) arranged on the support plate (312); a support screw sleeve (324) is arranged on the top of the arm body (321), and the windproof device (31) is fixedly connected to the arm body (321) via the support screw sleeve (324); the support plate (312) of the windproof device (31) directly carries the arrow foot of the rocket (40), and the clamping assembly (311) is used to clamp the arrow foot, thereby fixing the rocket (40); the driving device (34) is specifically used to slide the two support arm assemblies (32) at the interference position with the engine tail nozzle of the rocket (40) outward along the diameter direction of the rocket (40) before the rocket (40) is erected, and then erect the rocket (40); after the rocket (40) is erected, drive the support arm assembly (32) The supporting plate (312) is moved inwardly along the diameter direction of the rocket (40) to a position directly below the arrow foot, so that the rocket (40) can dock with the supporting plate (312) when it descends again.

2. The rocket launch platform device according to claim 1, characterized in that: The driving device (34) comprises one or more of a cylinder, a hydraulic cylinder, and a lead screw.

3. The rocket launch platform device according to claim 2, characterized in that: When the driving device (34) is a lead screw, it comprises a sliding nut (341), a screw rod (342) and a fixed seat (343); the fixed seat (343) is fixed on the base plate (333); one end of the screw rod (342) is rotatably connected to the fixed seat (343), and the other end is threadedly connected to the sliding nut (341); and the sliding nut (341) is fixed on the support arm assembly (32).

4. The rocket launch platform device according to claim 3, characterized in that: A positioning block is provided at the bottom of the fixing seat (343), a positioning hole (334) is correspondingly provided on the bottom plate (333), and the positioning block is inserted into the positioning hole (334).

5. The rocket launch platform device according to claim 1, characterized in that: The number of the supporting legs (10) is four, and the supporting legs (10) are arranged corresponding to the launch platform support arm structure (30). The supporting legs (10) can be extended and retracted up and down to adjust the support height.

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