A ring structure suitable for the roll assembly of a new type of launch vehicle

Abstract

The application provides a ring structure suitable for new type carrier rocket rolling assembly, comprising a front ring and a rear ring, the front ring is installed on the upper part of the rocket body, the rear ring is installed on the bottom of the rocket body, and the front ring and the rear ring are connected through a crown block, so that the movement of the crown block to the rocket body is realized. The application realizes the rotation of the rocket body on the rolling mechanism by means of the friction between materials in the form of embracing; the ring is made of aluminum alloy material, the multi-section type assembly structure reduces the manufacturing and transportation cost; the multi-section type structure is used to realize the folding storage of the ring, so that the floor area is reduced; the high stability connecting mechanism is designed, so that the close connection of the upper and lower half rings to the rocket body is quickly realized; the position of the rolling ring is reasonably arranged, the joint surface of the rocket body sections is avoided, and the conditions for the application of automatic joint technology are created.

Description

Technical Field

[0001] This invention belongs to the field of rocket assembly, and in particular relates to a ring structure suitable for the roll assembly of a new type of launch vehicle. Background Technology

[0002] Currently, most of my country's launch vehicle assembly adopts a single-section horizontal assembly method. Each rocket section is placed on a square bracket, and assembly is assisted by a work ladder. The diameter of currently operational rockets is mostly 3.35 meters, while the diameter of new-generation launch vehicles reaches 5 meters.

[0003] The longest section of a 3.35-meter-class launch vehicle can reach 30 meters. During the assembly of internal pipes and cables, the assembly work becomes extremely difficult when the internal space is cramped, components are densely packed, and the height exceeds the worker's reach. To resolve this assembly issue, the rocket sections need to be rolled to adjust the relative positions of the working parts. Specifically, the section to be installed needs to be rotated to the bottom of the section, allowing for the installation of components within the worker's standing range (e.g., ...). Figure 1 (As shown). Due to the special coating on the outer surface of the rocket body, contact between the rocket body and the rolling mechanism is not allowed. Therefore, under current technological and equipment conditions, the rolling of the launch vehicle is mainly achieved by installing a special rolling ring at the end of the rocket body to achieve the rolling of a single section of the launch vehicle. The special rolling ring drives the rolling of a single section of the launch vehicle. Due to its simple structure and ease of manufacturing, this technology has been widely used. However, the special rolling ring requires high machining precision, has high manufacturing costs, is cumbersome to install, and wastes time, resulting in less than ideal performance.

[0004] Existing rolling rings are mainly machined from integral forged carbon steel plates with rust-proof treatment. This process results in high-cost plates and difficulties in transportation. The mounting holes for the rolling rings are manufactured according to specific patterns based on the docking hole dimensions of the launch vehicle's end frame, leading to high production costs and difficulty in ensuring machining accuracy.

[0005] The outer diameter of the rolling ring can be close to 3.5 meters, which requires a large storage area and needs to be placed in a special storage rack. Access requires hoisting with a crane, resulting in a high personnel occupancy rate.

[0006] The specialized rolling ring is bolted to the launch vehicle section. Workers must connect all approximately 100 bolts during this process, resulting in a large workload and the risk of incorrect or missing bolts. Installing the rolling ring requires lifting the rocket body with a crane, necessitating high-altitude work by workers using lifts and platforms, which also presents significant labor risks. Furthermore, the rolling ring has a single function and cannot handle lifting and transport, requiring specialized lifting equipment during final assembly, further increasing production costs.

[0007] Because the dedicated rolling ring is installed at the end of the rocket body section and occupies the end frame docking connection hole, the rolling ring must be removed at an intermediate station before docking different sections of the rocket body, hindering the application of intelligent docking technology. After docking is completed, the rocket body must be lifted, the rolling ring reinstalled, and subsequent assembly work carried out.

[0008] In summary, dedicated rolling rings have disadvantages such as high manufacturing cost, inconvenient storage and retrieval, cumbersome and laborious assembly, and hinder automation. Summary of the Invention

[0009] In view of this, the present invention aims to propose a ring structure suitable for the rolling assembly of a new type of launch vehicle. This ring structure utilizes the friction between materials to achieve the rotation of the rocket body on the rolling mechanism. The ring is made of aluminum alloy, and its multi-segment assembly structure reduces manufacturing and transportation costs. The multi-segment structure allows for foldable storage of the ring, reducing its footprint. A highly stable connection mechanism is designed to quickly achieve a tight connection between the upper and lower rings and the rocket body. The rolling rings are strategically positioned to avoid contact with the docking surfaces of rocket body segments, creating conditions for the application of automatic docking technology.

[0010] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0011] A clamping ring structure suitable for the roll assembly of a new type of launch vehicle includes a front clamping ring and a rear clamping ring. The front clamping ring is installed on the upper part of the rocket body, and the rear clamping ring is installed on the bottom of the rocket body. The front clamping ring and the rear clamping ring are connected to the overhead crane to realize the movement of the rocket body by the overhead crane.

[0012] Furthermore, the front and rear retaining rings are in the form of a ring structure, each including an upper semi-circular ring, a first side retaining ring, a second side retaining ring, and a lower retaining ring; the first and second side retaining rings have the same structure.

[0013] The upper semicircular ring, the first side ring, the lower ring, and the second side ring are connected end to end in sequence to form a front ring or a rear ring.

[0014] Furthermore, the lower retaining ring is connected to both the first and second side retaining rings via a stop assembly; the stop assembly includes a stop plate and several pins; a stop plate is provided on each side of the connection point, and each pin passes through the stop plates on both sides, the lower retaining ring, the first or second side retaining ring, to achieve a fixed connection between the lower retaining ring and the first or second side retaining ring.

[0015] Furthermore, both ends of the lower retaining ring are provided with grooves, and the ends of the first or second side retaining ring are provided with protrusions that cooperate with the grooves. The protrusions are inserted into the grooves to realize the insertion between the lower retaining ring and the first and second side retaining rings.

[0016] Furthermore, the area where the lower retaining ring and the first or second side retaining ring are inserted and overlapped is called the overlapping area, and at least one of the several pins passes through the overlapping area.

[0017] Furthermore, the upper semi-circular ring and the first and second side clamping rings are all connected by a locking mechanism; the two ends of the upper semi-circular ring are provided with positioning blocks, and the first or second side clamping ring is provided with a positioning groove corresponding to the positioning block. The positioning block is inserted into the positioning groove to realize the positioning between the upper semi-circular ring and the first and second side clamping rings.

[0018] Furthermore, the locking mechanism includes a first locking seat, a second locking seat, a hinge bolt, a locking bolt, a first limiting bracket, and a second limiting bracket; the first locking seat is installed on the upper semi-circular ring, the second locking seat is installed on the first side ring or the second side ring, the first locking seat is provided with a first limiting bracket, and the second locking seat is provided with a second limiting bracket;

[0019] The hinge bolt is installed to the first limit frame via a cotter pin, and the hinge bolt can rotate relative to the first limit frame; the second limit frame is provided with a slot, and the hinge bolt can fall into the slot;

[0020] The hinge bolt is also equipped with a nut. The hinge bolt falls into the slot, and the nut is located on both sides of the slot. By rotating the nut, the hinge bolt is fixed to the second limit bracket; thereby, the upper semi-circular ring is fixed to the first side ring or the second side ring.

[0021] The locking bolt passes through the upper semicircular ring and the first side clamping ring, or through the upper semicircular ring and the second side clamping ring, and is locked by the locking nut, thereby fixing the upper semicircular ring to the first or second side clamping ring and adjusting the circumference diameter.

[0022] Furthermore, both the No. 1 and No. 2 side clamping rings can rotate outward relative to the lower clamping ring by an angle of 12°-15°.

[0023] Furthermore, the inner circumferential surface of the front retaining ring is a smooth plane, and the inner circumferential surface of the rear retaining ring is provided with clearance holes that match the outline of the arrow body.

[0024] Furthermore, symmetrical lifting rings are provided on both sides of the upper semi-circular ring for overhead crane hoisting.

[0025] Compared with existing technologies, the ring structure for the roll assembly of novel launch vehicles described in this invention has the following advantages:

[0026] (1) The present invention provides a ring-type structure suitable for the rolling assembly of a new type of launch vehicle. The ring-type ring structure replaces the rolling end frame, releasing the docking end frame of the launch vehicle. During the assembly of the sections, the ring and the rolling frame are used in a complete set to achieve automated docking of different sections.

[0027] (2) The ring structure of the present invention, which is suitable for the rolling assembly of a new type of launch vehicle, is easier to store and retrieve and easier to install than the traditional rolling ring, thus improving work efficiency and reducing the labor intensity of personnel.

[0028] (3) The present invention provides a ring structure suitable for the rolling assembly of a new type of launch vehicle. It utilizes the ring shape and the friction between materials to realize the rotation of the rocket body on the rolling mechanism. The ring is made of aluminum alloy and the multi-segment assembly structure reduces manufacturing and transportation costs. The multi-segment structure enables the ring to be stored in a foldable manner, reducing the floor space occupied. A highly stable connection mechanism is designed to quickly realize the tight connection between the upper and lower half rings and the rocket body. The position of the rolling ring is reasonably arranged to avoid the docking surface of the rocket body sections, creating conditions for the application of automatic docking technology. Attached Figure Description

[0029] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0030] Figure 1 This is a schematic diagram of a ring structure suitable for the roll assembly of a new type of launch vehicle, as described in an embodiment of the present invention.

[0031] Figure 2 This is a schematic diagram of the stop assembly described in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the locking mechanism described in an embodiment of the present invention. Figure 1 ;

[0033] Figure 4 This is a schematic diagram of the locking mechanism described in an embodiment of the present invention. Figure 2 ;

[0034] Figure 5 This is a schematic diagram of the rear retaining ring as described in an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the opening angle state of the ring structure according to an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the storage state of the ring-shaped structure according to an embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Front retaining ring; 11. Upper semi-circular ring; 12. Side retaining ring No. 1; 13. Side retaining ring No. 2; 14. Lower retaining ring; 2. Rear retaining ring; 21. Clearance hole; 3. Stop assembly; 31. Stop plate; 32. Pin; 33. Long bushing; 34. Spacer; 35. Short sleeve; 4. Locking mechanism; 41. Locking seat No. 1; 42. Locking seat No. 2; 43. Hinged bolt; 44. Limit bracket No. 1; 45. Limit bracket No. 2; 46. Nut; 47. Locking bolt; 48. Locking nut; 49. Cotter pin. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] A ring structure suitable for the roll assembly of a new type of launch vehicle, such as Figures 1-7 As shown, it includes a front clamping ring 1 and a rear clamping ring. The front clamping ring 1 is installed on the upper part of the arrow body; the rear clamping ring 2 is installed on the bottom of the arrow body. It is connected to the front clamping ring 1 and the rear clamping ring 2 through a crane to realize the movement of the arrow body by the crane.

[0044] Preferably, the front retaining ring 1 and the rear retaining ring 2 are in the form of a ring structure, each including an upper semi-circular ring 11, a first side retaining ring 12, a second side retaining ring 13 and a lower retaining ring 14; the first side retaining ring 12 and the second side retaining ring 13 have the same structure; the inner circumference of the front retaining ring 1 and the rear retaining ring 2 is provided with felt to protect the arrow body.

[0045] The front retaining ring 1 and the rear retaining ring 2 are completely identical in structure and connection method except for the structure of the inner circumference. Therefore, in the description of this patent, they are all referred to as the upper semi-circular ring 11, the first side retaining ring 12, the second side retaining ring 13, and the lower retaining ring 14; and the differences in the inner circumference are explained.

[0046] The upper semicircular ring 11, the first side ring 12, the lower ring 14, and the second side ring 13 are connected end to end to form the front ring 1 or the rear ring 2.

[0047] Preferably, the lower retaining ring 14 is connected to the first side retaining ring 12 and the second side retaining ring 13 via a stop assembly 3; the stop assembly 3 includes a stop plate 31 and three pins 32; a stop plate 31 is provided on each side of the connection point, and each pin 32 passes through the stop plates 31 on both sides, the lower retaining ring 14, the first side retaining ring 12 or the second side retaining ring 13, to achieve a fixed connection between the lower retaining ring 14 and the first side retaining ring 12 or the second side retaining ring 13.

[0048] The lower clamping ring 14 passes through the first side clamping ring 12 and the second side clamping ring 13. Figure 2 The structure enables relative rotation between the side holding ring and the lower holding ring 14. After the rocket body lands on the lower holding ring 14, the first side holding ring 12 and the second side holding ring 13 rotate around the fixed pin. When the inner surface of the side holding ring rotates to fit against the outer surface of the rocket body, a stop plate is installed and an anti-rotation pin is inserted to ensure the semi-circularity of the ring. The middle pin is a fixed pin, and the pins on both sides are anti-rotation pins.

[0049] Preferably, both ends of the lower retaining ring 14 are provided with grooves, and the ends of the first side retaining ring 12 or the second side retaining ring 13 are provided with protrusions that cooperate with the grooves. The protrusions are inserted into the grooves to realize the insertion between the lower retaining ring 14 and the first side retaining ring 12 and the second side retaining ring 13.

[0050] Preferably, the area where the lower retaining ring 14 and the first side retaining ring 12 or the second side retaining ring 13 are inserted and overlapped is called the overlapping area, and one of the three pins 32 passes through the overlapping area, such as... Figure 2 As shown, the pin 32 is set in the middle. As the middle pin, the first side ring 12 can rotate relative to the lower ring 14 with the middle pin 32 as the center. The rotation angle is 12°. The main purpose is to prevent interference between the outer surface of the arrow body and the side ring during the fall of the arrow body, and at the same time, it can realize the rapid landing of the arrow body.

[0051] To further improve the efficiency of the connection between the arrow body and the retaining ring, and to reduce the impact of the relative movement between the side retaining ring and the upper semi-circular ring 11 on the surface quality of the arrow body, the angle of the upper semi-circular ring 11 is adjusted to less than 180° in the design. This setting will greatly improve the convenience of installing and fixing the retaining ring. Figure 1 As shown;

[0052] Preferably, the upper semi-circular ring 11 and the first side clamping ring 12 and the second side clamping ring 13 are all connected by a locking mechanism 4; the upper semi-circular ring 11 is provided with positioning blocks at both ends, and the first side clamping ring 12 or the second side clamping ring 13 is provided with positioning grooves corresponding to the positioning blocks. The positioning blocks are inserted into the positioning grooves to realize the positioning between the upper semi-circular ring 11 and the first side clamping ring 12 and the second side clamping ring 13.

[0053] Preferably, the locking mechanism 4 includes a first locking seat 41, a second locking seat 42, a hinge bolt 43, a locking bolt 47, a first limiting bracket 44, and a second limiting bracket 45; the first locking seat 41 is installed to the upper semi-circular ring 11, the second locking seat 42 is installed to the first side retaining ring 12 or the second side retaining ring 13, the first locking seat 41 is provided with the first limiting bracket 44, and the second locking seat 42 is provided with the second limiting bracket 45;

[0054] The hinge bolt 43 is installed to the first limit frame 44 through the cotter pin 49, and the hinge bolt 43 can rotate relative to the first limit frame 44; the second limit frame 45 is provided with a slot, and the hinge bolt 43 can fall into the slot.

[0055] The hinge bolt 43 is also provided with a nut 46. The hinge bolt 43 falls into the slot, and the nut 46 is set on both sides of the slot. By rotating the nut 46, the hinge bolt 43 is fixed to the second limit bracket 45; thereby, the upper semi-circular ring 11 is fixed to the first side clamping ring 12 or the second side clamping ring 13.

[0056] The locking bolt 47 passes through the upper semi-circular ring 11 and the first side clamping ring 12, or through the upper semi-circular ring 11 and the second side clamping ring 13, and is locked by the locking nut 48, thereby achieving the fixation between the upper semi-circular ring 11 and the first side clamping ring 12 or the second side clamping ring 13, as well as the adjustment of the circumference diameter.

[0057] Preferably, the inner circumferential surface of the front retaining ring 1 is a smooth plane, and the inner circumferential surface of the rear retaining ring 2 is provided with clearance holes 21 that match the contour of the arrow body. The design concept of the rear retaining ring 2 is the same as that of the front retaining ring 1, and the design of the inner surface of the retaining ring must be determined according to the dimensions of the external joint of the arrow body. Due to the presence of a large number of regularly distributed stringers at the mounting location of the rear retaining ring 2, its profile differs significantly from that of the front retaining ring 1. The mechanism of the rear retaining ring 2 is as follows: Figure 5 As shown; the inner surface of the rear retaining ring 2 is designed to avoid radial stringers, and avoidance holes 21 are designed. The size of the avoidance holes 21 encompasses the outer contour of the stringer movement.

[0058] The structure of the rear retaining ring 2 connecting component and the locking mechanism 4 adopts a standardized design concept, is consistent with the front retaining ring 1, and has the same component specifications, which improves the interchangeability of components and reduces the cost of spare parts inventory.

[0059] Preferably, the upper semi-circular ring has symmetrical lifting rings on both sides for overhead crane hoisting.

[0060] The outer diameter of the retaining ring reaches 4000mm, therefore, to save storage space, the special retaining ring adopts a segmented design, especially the side retaining ring that can be flipped inward, such as... Figure 7 As shown; the side-clamping ring mechanism can rotate completely to the inside of the lower clamping ring 14, with no outward extension. The storage area in the width direction is only the chord length of the lower clamping ring 14, reducing the footprint by 1.5 times.

[0061] During the work preparation stage, the lower clamping ring 14 of the front clamping ring 1, the first side clamping ring 12, the second side clamping ring 13 and the lower clamping ring 14 of the rear clamping ring 2, the first side clamping ring 12, and the second side clamping ring 13 are placed on the rolling frame car, and the first side clamping ring 12 and the second side clamping ring 13 are opened outward.

[0062] The rocket body was hoisted and placed on the upper side of the front and rear lower clamps 14 and stabilized (the front and rear clamps were in the open position as shown). Figure 5 (as shown)

[0063] Then hoist the front and rear upper semi-circular rings 11, rotate the front and rear first side clamping rings 12 and second side clamping rings 13; tighten the locking bolts 47 to achieve the connection and fastening of the front and rear side clamping rings with the front and rear upper rings.

[0064] Finally, install the stop plate 31 and adjust the tightening torque with a torque wrench. When tightening the locking bolt 47, the tightening force is converted into the force of the clamping ring compressing the felt, thus forming a certain clamping force.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ring structure suitable for roll-on assembly of a new launch vehicle, characterized in that: It includes a front clamping ring and a rear clamping ring. The front clamping ring is installed on the upper part of the arrow body, and the rear clamping ring is installed on the bottom of the arrow body. The front clamping ring and the rear clamping ring are connected to the overhead crane to realize the movement of the arrow body by the overhead crane. The front and rear retaining rings are in the form of a ring structure, each including an upper semi-circular ring, a first side retaining ring, a second side retaining ring, and a lower retaining ring; the first and second side retaining rings have the same structure. The upper semicircular ring, the first side ring, the lower ring, and the second side ring are connected end to end to form a front ring or a rear ring. The lower clamping ring is connected to the first side clamping ring and the second side clamping ring via a stop assembly; the stop assembly includes a stop plate and several pins; a stop plate is provided on each side of the connection point, and each pin passes through the stop plates on both sides, the lower clamping ring, the first side clamping ring or the second side clamping ring to achieve a fixed connection between the lower clamping ring and the first side clamping ring or the second side clamping ring. Both ends of the lower retaining ring are provided with grooves, and the ends of the first side retaining ring or the second side retaining ring are provided with protrusions that cooperate with the grooves. The protrusions are inserted into the grooves to realize the insertion between the lower retaining ring and the first and second side retaining rings. The area where the lower clamping ring and the first or second side clamping ring are inserted and overlapped is called the overlapping area, and at least one of the pins passes through the overlapping area. The upper semicircular ring and the first and second side clamping rings are all connected by a locking mechanism; the two ends of the upper semicircular ring are provided with positioning blocks, and the first or second side clamping ring is provided with a positioning groove corresponding to the positioning block. The positioning block is inserted into the positioning groove to realize the positioning between the upper semicircular ring and the first and second side clamping rings. The locking mechanism includes a first locking seat, a second locking seat, a hinge bolt, a locking bolt, a first limiting bracket, and a second limiting bracket; the first locking seat is installed on the upper semi-circular ring, the second locking seat is installed on the first side ring or the second side ring, the first locking seat is provided with a first limiting bracket, and the second locking seat is provided with a second limiting bracket; The hinge bolt is installed to the first limit frame via a cotter pin, and the hinge bolt can rotate relative to the first limit frame; the second limit frame is provided with a slot, and the hinge bolt can fall into the slot; The hinge bolt is also equipped with a nut. The hinge bolt falls into the slot, and the nut is located on both sides of the slot. By rotating the nut, the hinge bolt is fixed to the second limit bracket; thereby, the upper semi-circular ring is fixed to the first side ring or the second side ring. The locking bolt passes through the upper semicircular ring and the first side clamping ring, or through the upper semicircular ring and the second side clamping ring, and is locked by the locking nut, thereby achieving the fixation between the upper semicircular ring and the first or second side clamping ring and the adjustment of the circumference diameter. Both the No. 1 and No. 2 side clamps can rotate outward relative to the lower clamp, with a rotation angle of 12°-15°.

2. The collar structure suitable for the new type of launch vehicle roll assembly according to claim 1, characterized in that: The inner circumferential surface formed by the upper semicircular ring, the first side ring, the second side ring, and the lower ring of the front retaining ring is a smooth plane, and the inner circumferential surface formed by the upper semicircular ring, the first side ring, the second side ring, and the lower ring of the rear retaining ring is provided with clearance holes that match the outline of the arrow body.

3. The collar structure for roll-on assembly of a new launch vehicle according to claim 1, wherein: The upper semicircular ring has symmetrical lifting rings on both sides for overhead crane hoisting.

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