Precise docking trailer for rocket engine

Abstract

The embodiment of the utility model provides a precision docking trailer for rocket engines, which comprises a lifting cart provided with a base, an X-axis adjusting structure, a Y-axis adjusting structure and a rotation adjusting structure. The X-axis adjusting structure is arranged on the base and used for achieving translation in the X-axis direction. The Y-axis adjusting structure is arranged on the X-axis adjusting structure and used for achieving translation in the Y-axis direction. The rotary adjusting structure is arranged on the top surface of the Y-axis adjusting structure and is used for realizing rotary adjustment; the rocket engine is arranged on the rotation adjusting structure. The lifting trolley is reasonable in structural arrangement, and the lifting trolley is provided with the base, the X-axis adjusting structure, the Y-axis adjusting structure and the rotation adjusting structure; by means of the technical scheme, adjustment in the X-axis direction can be achieved, adjustment in the Y-axis direction can also be achieved, rotation adjustment can also be achieved, position adjustment of the rocket engine is facilitated, butt joint flexibility and convenience can be improved, and meanwhile butt joint effectiveness and butt joint efficiency are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of rocket docking technology, specifically to a precision docking trailer for rocket engines. Background Technology

[0002] With the maturity of rocket technology, rocket segment docking has gradually shifted from traditional hoisting docking to hoistless docking. Hoistless docking requires the use of corresponding handling and adjustment docking vehicles, such as Chinese patent application number CN201911313455.8, entitled "A Multifunctional Rocket Segment Docking Vehicle." This vehicle includes a docking drive wheel system, a transfer drive wheel system, a chassis, a six-dimensional attitude adjustment bracket, and an automatic charging mechanism. The docking drive wheel system is located below the chassis for driving movement during docking; the transfer drive wheel system is located below the chassis for driving movement during transfer.

[0003] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems: not only is its overall structure relatively complex, which greatly increases the processing and use costs, but it also cannot achieve rotational adjustment, which affects the convenience and flexibility of docking during the docking process. At the same time, its XY axis adjustment efficiency is also low, which will also affect the docking accuracy and efficiency, thus limiting its applicability and practicality. Utility Model Content

[0004] In view of this, the purpose of this utility model embodiment is to provide a rocket engine precision docking trailer with a reasonable structural design and flexible and convenient adjustment.

[0005] To achieve the above objectives, this utility model provides a precision docking trailer for a rocket engine, including a lifting trolley, which is equipped with a base, an X-axis adjustment structure, a Y-axis adjustment structure and a rotation adjustment structure.

[0006] The X-axis adjustment structure is mounted on the base and is used to achieve translation in the X-axis direction;

[0007] The Y-axis adjustment structure is disposed on the X-axis adjustment structure and is used to realize translation in the Y-axis direction;

[0008] The rotation adjustment structure is disposed on the top surface of the Y-axis adjustment structure and is used to realize rotation adjustment;

[0009] The rocket engine is mounted on the rotary adjustment structure.

[0010] A further preferred embodiment is that the X-axis adjustment structure includes an X-axis adjustment drive component, an X-axis support, and an X-axis slider;

[0011] The X-axis adjustment drive component is mounted on the base, the X-axis slider is fixed to the bottom surface of the X-axis support, and the X-axis slider is connected to the adjustment drive component.

[0012] The X-axis adjustment drive component moves the X-axis slider horizontally on the base.

[0013] A further preferred embodiment is that the Y-axis adjustment structure includes a Y-axis adjustment drive component, a Y-axis support, and a Y-axis slider;

[0014] The Y-axis adjustment drive component is mounted on the X-axis support;

[0015] The Y-axis slider is fixed on the Y-axis support, and the Y-axis slider is connected to the Y-axis adjustment drive component;

[0016] The Y-axis adjustment drive component moves the Y-axis slider on the X-axis support.

[0017] A further preferred embodiment is that the rotation adjustment structure includes a rotation support, a rotation bracket, and a rotation drive structure;

[0018] The rotating support is rotatably connected to the Y-axis support, and the rotating drive structure is disposed on the Y-axis support and connected to the rotating support;

[0019] The rotating bracket is fixed on the rotating support and is used for the connection and positioning of the rocket engine.

[0020] A further preferred embodiment is that the X-axis adjustment drive component includes a control handwheel, a lead screw, a guide rail, and a guide rail slider;

[0021] The guide rail slider is fixed on the X-axis support, the guide rail is fixed on the base, and the guide rail slider is slidably disposed on the guide rail;

[0022] The X-axis slider is threadedly connected to the lead screw.

[0023] The lead screw rotates and drives the X-axis slider to translate along the lead screw.

[0024] A further preferred embodiment is that the Y-axis adjustment drive component has the same structure as the X-axis adjustment drive component.

[0025] A further preferred embodiment is that the rotary drive structure includes a rotary handwheel, a rotary worm gear, and a rotary gear;

[0026] The rotating handwheel is fixed to the end of the rotating worm gear, and the rotating worm gear is located on the Y-axis support;

[0027] The rotating gear is fixed to the bottom surface of the rotating support, and the rotating gear is connected to the Y-axis support through a bearing. The rotating gear is connected to the rotating worm gear teeth.

[0028] The rotating worm gear rotates and causes the rotating gear to rotate.

[0029] A further preferred embodiment is that the rotating bracket includes a cross-shaped bracket, and the end of the cross-shaped bracket is fixed with a stop plate;

[0030] The rocket engine is mounted on the rotating support.

[0031] A further preferred embodiment is that the top of the rotating bracket is provided with a tray, and the top surface of the tray is provided with a plurality of supporting ribs and hoop rings;

[0032] The supporting rib is rotatably connected to the outer wall of the hoop via a pin.

[0033] The tray is positioned on the cross-shaped bracket and is abutted against the edge of the tray by a locking screw passing through the abutment plate;

[0034] The hoop is fitted onto the rocket engine and positioned by the supporting ribs.

[0035] A further preferred embodiment is that the bottom of the tray is provided with casters.

[0036] The above technical solution has the following beneficial effects:

[0037] 1. The structure of this utility model is reasonable. Its lifting trolley is equipped with a base, an X-axis adjustment structure, a Y-axis adjustment structure and a rotation adjustment structure. It can not only realize adjustment in the X-axis direction, but also adjustment in the Y-axis direction, and also rotation adjustment, which facilitates the position adjustment of the rocket engine, improves the flexibility and convenience of docking, and greatly improves the effectiveness and efficiency of docking.

[0038] 2. The X-axis adjustment structure includes an X-axis adjustment drive component, an X-axis support, and an X-axis slider. Its adjustment structure is simple, which helps to reduce processing costs and makes operation more convenient.

[0039] 3. The Y-axis adjustment structure is the same as the X-axis adjustment structure, which helps to reduce the overall cost, improve processing and assembly efficiency, and also ensure the stability and reliability of X-axis and Y-axis adjustment;

[0040] 4. The rotary adjustment structure includes a rotary support, a rotary bracket, and a rotary drive structure. The rotary drive structure includes a rotary handwheel, a rotary worm gear, and a rotary gear. The rotary worm gear rotates to achieve the rotation of the rotary gear, thereby completing the adjustment of the rotation direction. This improves the convenience and effectiveness of operation and makes it highly practical.

[0041] 5. The rotating support includes a cross-shaped support, and the end of the cross-shaped support is fixed with a stop plate, which is beneficial for supporting the rocket engine and improving the stability of use;

[0042] 6. The top of the rotating support is equipped with a tray, and the top surface of the tray is equipped with several supporting ribs and hoop rings; this facilitates the positioning of the rocket engine, ensures the stability and reliability of the rocket engine during transportation and adjustment, and enables the rapid and efficient loading and unloading of the rocket engine. Attached Figure Description

[0043] 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.

[0044] Figure 1 This is a structural schematic diagram of the rocket engine precision docking trailer according to an embodiment of the present invention;

[0045] Figure 2 This is a schematic diagram of the structure of an explosive decomposition according to an embodiment of the present invention;

[0046] Figure 3 This is a schematic diagram of the specific structure of the rotation adjustment structure in this utility model embodiment;

[0047] Figure 4 This is a schematic diagram of the overall structure of the base, X-axis adjustment structure, and Y-axis adjustment structure in an embodiment of this utility model;

[0048] Figure 5 This is a schematic diagram showing the specific structure of the tray, supporting ribs, and hoop in an embodiment of this utility model;

[0049] Figure 6 This is a schematic diagram of the specific structure of the rotating bracket in the embodiment of this utility model.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1. Lifting trolley;

[0052] 2. Base;

[0053] 3. X-axis adjustment structure; 31. X-axis adjustment drive component; 32. X-axis support; 33. X-axis slider;

[0054] 311. Control handwheel; 312. Lead screw; 313. Guide rail; 314. Guide rail slider;

[0055] 4. Y-axis adjustment structure; 41. Y-axis adjustment drive component; 42. Y-axis support; 43. Y-axis slider;

[0056] 5. Rotary adjustment structure; 51. Rotary support; 52. Rotary bracket; 53. Rotary drive structure;

[0057] 531. Rotary handwheel; 532. Rotary worm gear; 533. Rotary gear;

[0058] 6. Rocket engine;

[0059] 7. Cross-shaped bracket;

[0060] 8. Abutment support plate;

[0061] 9. Pallet;

[0062] 10. Supporting stiffeners;

[0063] 11. Hoop;

[0064] 12. Casters. Detailed Implementation

[0065] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it. In the accompanying drawings and the following description, at least some well-known structures and techniques have not been shown to avoid unnecessarily obscuring the utility model; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0066] Currently, rocket engine installation and docking primarily utilizes crane lifting. This embodiment employs a docking trailer capable of precisely adjusting the rocket engine's position for docking with the rocket body. This embodiment provides a precision docking trailer for rocket engines with four degrees of freedom (X-axis movement, Y-axis movement, Z-axis lifting, and B-axis rotation along the circumference). Figures 1 to 6As shown, a precision docking trailer for a rocket engine includes a lifting trolley 1. In this embodiment, the lifting trolley 1 is a conventional structure of the prior art, simply modified for easier application. Its main function is to push the entire structure, allowing for lifting and adjustment, and it can also be detached from the base. During assembly, the lifting trolley 1 is equipped with a base 2, an X-axis adjustment structure 3, a Y-axis adjustment structure 4, and a rotation adjustment structure 5. The X-axis adjustment structure 3 is mounted on the base 2 for X-axis translation; the Y-axis adjustment structure 4 is mounted on the X-axis adjustment structure 3 for Y-axis translation; and the rotation adjustment structure 5 is mounted on the top surface of the Y-axis adjustment structure 4 for rotation adjustment. The rocket engine 6 is mounted on the rotation adjustment structure 5. This structure enables X-axis, Y-axis, and rotation adjustment operations, improving docking accuracy and efficiency.

[0067] like Figure 1 , Figure 2 and Figure 4 As shown, in practical applications, the X-axis adjustment structure 3 includes an X-axis adjustment drive component 31, an X-axis support 32, and an X-axis slider 33. The X-axis adjustment drive component 31 is mounted on the base 2, and the X-axis slider 33 is fixed to the bottom surface of the X-axis support 32. The X-axis slider 33 is connected to the adjustment drive component. The movement of the X-axis adjustment drive component 31 causes the X-axis slider 33 to move horizontally on the base 2.

[0068] The Y-axis adjustment structure 4 includes a Y-axis adjustment drive component 41, a Y-axis support 42, and a Y-axis slider 43. The Y-axis adjustment drive component 41 is mounted on the X-axis support 32. The Y-axis slider 43 is fixed on the Y-axis support 42 and is connected to the Y-axis adjustment drive component 41. The Y-axis adjustment drive component 41 moves to drive the Y-axis slider 43 to translate on the X-axis support 32.

[0069] With the above structure, adjustment operations are performed through the X-axis adjustment drive component and the Y-axis adjustment drive component. In practical applications, the X-axis adjustment drive component 31 includes a control handwheel 311, a lead screw 312, a guide rail 313, and a guide rail slider 314. The guide rail slider 314 is fixed on the X-axis support 32, the guide rail 313 is fixed on the base 2, and the guide rail slider 314 is slidably mounted on the guide rail 313. The X-axis slider 33 is threadedly connected to the lead screw 312. The lead screw 312 rotates and drives the X-axis slider 33 to translate on the lead screw 312. The Y-axis adjustment drive component 41 has the same structure as the X-axis adjustment drive component 31. It mainly controls the rotation of the control handwheel 311, which drives the lead screw 312 to rotate, causing the X-axis slider 33 or the Y-axis slider 43 to translate. Both the X-axis support 32 and the Y-axis support 42 are square frame structures, which facilitates assembly and connection, and can also realize the corresponding adjustment operations.

[0070] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the rotation adjustment structure 5 includes a rotation support 51, a rotation bracket 52, and a rotation drive structure 53. During assembly, the rotation support 51 is rotatably connected to the Y-axis support 42, and the rotation drive structure 53 is disposed on the Y-axis support 42 and connected to the rotation support 51. The rotation bracket 52 is fixed on the rotation support 51 and is used for the connection and positioning of the rocket engine 6.

[0071] In practical applications, the rotary drive structure 53 includes a rotary handwheel 531, a rotary worm gear 532, and a rotary gear 533. The rotary handwheel 531 is fixed to the end of the rotary worm gear 532, which is located on the Y-axis support 42. The rotary gear 533 is fixed to the bottom surface of the rotary support 51 and is connected to the Y-axis support 42 via bearings. The rotary gear 533 is in toothed connection with the rotary worm gear 532. The rotary worm gear 532 rotates, causing the rotary gear 533 to rotate. The rotary support 51 is a flat plate connected to the rotary bracket 52 via a screw and also connected to the rotary gear 533. When the rotary worm gear 532 rotates, it drives the rotary gear 533 to rotate, which in turn drives the rotary support 51 to rotate, completing the rotary adjustment operation. The operation is smooth and reliable, and more convenient.

[0072] like Figure 6 As shown, in practical applications, the rotating support 52 includes a cross-shaped support 7, and the end of the cross-shaped support 7 is fixed with a stop plate 8; the rocket engine 6 is mounted on the rotating support 52. This structure improves the uniformity and effectiveness of the support, preventing tilting or swaying.

[0073] like Figure 5 As shown, in practical application, a tray 9 is provided on the top of the rotating support 52. Several supporting ribs 10 and hoop rings 11 are provided on the top surface of the tray 9. The supporting ribs 10 are rotatably connected to the outer wall of the hoop rings 11 via pins. The tray 9 is positioned on the cross-shaped support 7 and is located by a locking screw passing through the abutment plate 8 and abutting against the edge of the tray 9. The hoop rings 11 are fitted onto the rocket engine 6 and supported and positioned by the supporting ribs 10. A caster wheel 12 is provided at the bottom of the tray 9. In this embodiment, the above structure facilitates the assembly and positioning of the rocket engine 6, and the tray 9 can also be separated from the rotating adjustment structure 5, improving the effectiveness and convenience of the connection, reducing operational difficulty, and also improving stability and reliability.

[0074] The above technical solution has the following beneficial effects:

[0075] 1. The structure of this utility model is reasonable. Its lifting trolley is equipped with a base, an X-axis adjustment structure, a Y-axis adjustment structure and a rotation adjustment structure. It can not only realize adjustment in the X-axis direction, but also adjustment in the Y-axis direction, and also rotation adjustment, which facilitates the position adjustment of the rocket engine, improves the flexibility and convenience of docking, and greatly improves the effectiveness and efficiency of docking.

[0076] 2. The X-axis adjustment structure includes an X-axis adjustment drive component, an X-axis support, and an X-axis slider. Its adjustment structure is simple, which helps to reduce processing costs and makes operation more convenient.

[0077] 3. The Y-axis adjustment structure is the same as the X-axis adjustment structure, which helps to reduce the overall cost, improve processing and assembly efficiency, and also ensure the stability and reliability of XY axis adjustment;

[0078] 4. The rotary adjustment structure includes a rotary support, a rotary bracket, and a rotary drive structure. The rotary drive structure includes a rotary handwheel, a rotary worm gear, and a rotary gear. The rotary worm gear rotates to achieve the rotation of the rotary gear, thereby completing the adjustment operation of the rotation direction and improving the convenience and effectiveness of operation.

[0079] 5. The rotating support includes a cross-shaped support, and the ends of the cross-shaped support are fixed with a stop plate, which helps to support the rocket engine and improves the stability of use;

[0080] 6. The top of the rotating support is equipped with a tray, and the top surface of the tray is equipped with several supporting ribs and hoop rings; this facilitates the positioning of the rocket engine, ensuring the stability and reliability of the rocket engine during transportation and adjustment, and also enables quick and efficient loading and unloading operations of the rocket engine.

[0081] 7. This equipment allows for flexible installation of rocket engines and convenient docking with rocket modules after installation. It also reduces the workload of transporting rocket modules and improves rocket assembly efficiency.

[0082] 8. The TL-3 rocket's first-stage tail section houses nine engines. Each engine is 2.31 meters tall and weighs 750 kilograms. The installation gap between the tail section and the engines is 3 millimeters, requiring precise docking during installation. The precision docking trailer for these rocket engines can control the movement accuracy of the X, Y, Z, and B axes to within 0.1 millimeters, and the axial rotation accuracy to within 0.1 degrees. This precision docking trailer enables the precise docking and installation of all nine engines in the first-stage tail section and also facilitates the transport of the rocket engines.

[0083] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0084] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" in this utility model should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integrated connections; similarly, they can refer to mechanical connections, electrical connections, or direct connections, or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0085] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. 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 precision docking trailer for a rocket engine, comprising a lifting trolley (1), characterized in that: The lifting trolley (1) is equipped with a base (2), an X-axis adjustment structure (3), a Y-axis adjustment structure (4), and a rotation adjustment structure (5); The X-axis adjustment structure (3) is mounted on the base (2) and is used to achieve translation in the X-axis direction; The Y-axis adjustment structure (4) is disposed on the X-axis adjustment structure (3) for realizing translation in the Y-axis direction; The rotation adjustment structure (5) is disposed on the top surface of the Y-axis adjustment structure (4) for rotation adjustment; The rocket engine (6) is mounted on the rotary adjustment structure (5).

2. The rocket engine precision docking trailer according to claim 1, characterized in that: The X-axis adjustment structure (3) includes an X-axis adjustment drive component (31), an X-axis support (32), and an X-axis slider (33); The X-axis adjustment drive component (31) is disposed on the base (2), the X-axis slider (33) is fixed on the bottom surface of the X-axis support (32), and the X-axis slider (33) is connected to the adjustment drive component; The X-axis adjustment drive component (31) moves the X-axis slider (33) to translate on the base (2).

3. The rocket engine precision docking trailer according to claim 2, characterized in that: The Y-axis adjustment structure (4) includes a Y-axis adjustment drive component (41), a Y-axis support (42), and a Y-axis slider (43); The Y-axis adjustment drive component (41) is mounted on the X-axis support (32); The Y-axis slider (43) is fixed on the Y-axis support (42), and the Y-axis slider (43) is connected to the Y-axis adjustment drive component (41); The Y-axis adjustment drive component (41) moves the Y-axis slider (43) to translate on the X-axis support (32).

4. The rocket engine precision docking trailer according to claim 3, characterized in that: The rotation adjustment structure (5) includes a rotation support (51), a rotation bracket (52), and a rotation drive structure (53); The rotating support (51) is rotatably connected to the Y-axis support (42), and the rotating drive structure (53) is disposed on the Y-axis support (42) and connected to the rotating support (51); The rotating bracket (52) is fixed on the rotating support (51) and used for the connection and positioning of the rocket engine (6).

5. A precision docking trailer for a rocket engine according to claim 3, characterized in that: The X-axis adjustment drive component (31) includes a control handwheel (311), a lead screw (312), a guide rail (313), and a guide rail slider (314); The guide rail slider (314) is fixed on the X-axis support (32), the guide rail (313) is fixed on the base (2), and the guide rail slider (314) is slidably disposed on the guide rail (313); The X-axis slider (33) is threadedly connected to the lead screw (312); The lead screw (312) rotates and drives the X-axis slider (33) to translate on the lead screw (312).

6. A precision docking trailer for a rocket engine according to claim 5, characterized in that: The Y-axis adjustment drive component (41) has the same structure as the X-axis adjustment drive component (31).

7. A rocket engine precision docking trailer according to claim 4, characterized in that: The rotary drive structure (53) includes a rotary handwheel (531), a rotary worm gear (532), and a rotary gear (533); The rotating handwheel (531) is fixed to the end of the rotating worm gear (532), and the rotating worm gear (532) is located on the Y-axis support (42); The rotating gear (533) is fixed to the bottom surface of the rotating support (51), and the rotating gear (533) is connected to the Y-axis support (42) by a bearing. The rotating gear (533) is connected to the toothed part of the rotating worm gear (532). The rotating worm gear (532) rotates and causes the rotating gear (533) to rotate.

8. A rocket engine precision docking trailer according to claim 4, characterized in that: The rotating bracket (52) includes a cross-shaped bracket (7), and the end of the cross-shaped bracket (7) is fixed with a stop plate (8); The rocket engine (6) is mounted on the rotating support (52).

9. A precision docking trailer for a rocket engine according to claim 8, characterized in that: The top of the rotating bracket (52) is provided with a tray (9), and the top surface of the tray (9) is provided with a plurality of supporting ribs (10) and a hoop (11); The supporting rib (10) is rotatably connected to the outer wall of the hoop (11) by a pin; The tray (9) is positioned on the cross-shaped bracket (7) and is located by a locking screw passing through the abutment plate (8) against the edge of the tray (9); The hoop (11) is fitted onto the rocket engine (6) and supported and positioned by the support rib (10).

10. A rocket engine precision docking trailer according to claim 9, characterized in that: The bottom of the tray (9) is provided with casters (12).

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