Rolling device

Abstract

The invention provides a rolling device. The rolling equipment is used for rolling a cylinder of a carrier rocket, and comprises at least two groups of rolling assemblies which are arranged at intervals along a first direction in a horizontal plane; the rolling assembly comprises a base and a rolling structure; the rolling structure comprises two roller carriers and two adjusting wheel assemblies which are oppositely arranged in the second direction; the second direction is perpendicular to the first direction in the horizontal plane; the bottom of the roller carrier is in sliding connection with the base; the bottom of the adjusting wheel assembly is fixedly connected with the roller carrier; one of the roller carrier and the adjusting wheel assembly can stretch out and draw back in the vertical direction. The synchronous belt is flexibly wound on the peripheries of the two rotating wheels and the two idle wheels; by adjusting at least one of the horizontal distance between the two rotating wheels and the vertical distance between the rotating wheels and the idle wheels, the synchronous belt between the two rotating wheels bears the barrels with different diameters and drives the barrels to roll. The rolling equipment provided by the invention has relatively high universality, and the cost can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of launch vehicle assembly, and more specifically, to a rolling device. Background Art

[0002] During the horizontal attitude assembly of a launch vehicle, in order to facilitate the assembly of parts, pipelines or other equipment inside the rocket body, it is necessary to roll the tank, compartment, assembly or sub-stage rocket and other cylinders at a certain angle.

[0003] Currently, most rolling equipment is used to roll the rocket barrel. It is necessary to install a rolling ring or other tooling on the rocket barrel and cooperate with the rolling equipment to roll the rocket barrel. The operation is cumbersome and the efficiency is low.

[0004] Moreover, the existing rolling equipment cannot adapt to rocket launchers of different diameters. For rocket launchers of different sizes and specifications, additional rolling equipment, rolling rings or other tooling are required, which is costly. Summary of the invention

[0005] In view of the shortcomings of the existing methods, this application proposes a rolling device to solve the technical problems in the related technology that a rolling ring or other tooling needs to be installed on the rocket tube body, or that the existing rolling equipment cannot adapt to rocket tube bodies of different diameters.

[0006] In a first aspect, an embodiment of the present application provides a rolling device for rolling a cylinder of a launch vehicle, comprising: At least two groups of rolling assemblies are arranged at intervals along a first direction in a horizontal plane; the rolling assembly comprises: a base and a rolling structure; the rolling structure comprises two roller frames and two adjusting wheel assemblies arranged opposite to each other along a second direction; the second direction is perpendicular to the first direction in the horizontal plane; the bottom of the roller frame is slidably connected to the base, and a rotating wheel is arranged on the top; the bottom of the adjusting wheel assembly is fixedly connected to the roller frame, and an idler wheel is arranged on the top; one of the roller frame and the adjusting wheel assembly can be extended and retracted in the vertical direction; Synchronous belt, flexible, wound around the two rotating wheels and two idler wheels; By adjusting at least one of the horizontal spacing between the two rotating wheels and the vertical spacing between the rotating wheels and the idler wheel, the synchronous belt between the two rotating wheels can support cylinders with different diameters and drive the cylinders to roll.

[0007] In some possible embodiments, the radius of the arc-shaped synchronous belt between the two rotating wheels changes with at least one of the horizontal spacing between the two rotating wheels and the vertical spacing between the rotating wheels and the idler wheel; the central angles of the arc-shaped synchronous belts with different radii between the two rotating wheels are equal.

[0008] In some possible embodiments, the two adjusting wheel assemblies are disposed between the two roller frames; The rotating wheels of the two roller frames are arranged opposite to each other; The idler wheels of the two adjusting wheel assemblies are arranged opposite to each other and are located below the rotating wheel.

[0009] In some possible embodiments, opposite sides of the two adjusting wheel assemblies are respectively slidably connected to roller frames adjacent to each other.

[0010] In some possible embodiments, the roller frame includes: The first bracket has a first guide rail on one side facing the adjusting wheel assembly, and the rotating wheel is arranged above the first guide rail; The support seat is arranged below the first bracket and is slidably connected to the base, and the bottom thereof protrudes toward the adjusting wheel assembly.

[0011] In some possible embodiments, the adjusting wheel assembly includes: The second bracket has a first slide groove on one side facing the roller frame for slidingly connecting with the first guide rail, and an idler wheel is arranged on the top of the other side; The lifting unit is arranged between the second bracket and the supporting seat and is configured to be height-adjustable.

[0012] In some possible embodiments, the rolling structure further includes: An adjusting rod assembly, comprising a first adjusting rod and a second adjusting rod arranged and extending along a second direction, and a coupling; A fixing piece is fixed on the side of the roller frame along the first direction; The two ends of the coupling are respectively sleeved outside the ends of the first adjusting rod and the second adjusting rod that are close to each other; One end of the first adjusting rod and the second adjusting rod which is away from each other is respectively connected to the fixing members on the two roller frames so as to be axially adjustable.

[0013] In some possible embodiments, the rolling device further includes: A bracket configured for each set of rolling assemblies, the top of which is slidably connected to the base along the second direction, and the bottom of which is movably connected to a track on the ground along the first direction; By adjusting the relative positional relationship between each group of rolling assemblies and the matching bracket along the second direction, the synchronous belts of at least two groups of rolling assemblies are made coaxial along the first direction.

[0014] In some possible embodiments, the bracket includes: The main body has at least one rolling shaft and a rolling bearing support base arranged on the top; The tightening assembly includes a fixing portion and a tightening rod; the fixing portion is fixed to the end of the main body along the second direction, the tightening rod is axially adjustable and connected to the fixing portion, and one end is used to hold the end of the base along the second direction.

[0015] In some possible embodiments, the main body includes: middle part; Two extension parts are arranged on both sides of the middle part along the second direction, and at least one rolling shaft is arranged on the top of each extension part; The baffle extends along the second direction; along the first direction, at least two baffles are arranged at a distance from each other at the top of the middle portion, and the base is arranged between the at least two baffles.

[0016] The beneficial technical effects brought about by the technical solution provided by the embodiment of the present application include: At least two sets of rolling components are arranged at intervals along the first direction to support the cylinder at multiple points in the first direction. The flexible synchronous belt supports the cylinder, and the synchronous belt adaptively deforms and fully contacts the outer surface of the middle and lower parts of the cylinder. The contact area is large and has sufficient static friction to maintain the stability of the cylinder, thereby driving the cylinder to roll. There is no need to use a rolling ring or other tooling to assist in fixing the cylinder, which is easy to operate and can improve the rolling efficiency.

[0017] Each set of rolling components includes two rotating wheels and two idle wheels arranged at intervals along the second direction. The synchronous belt is wound around the outer circumferences of the two rotating wheels and the two idle wheels. By adjusting the horizontal interval between the two rotating wheels and the vertical interval between the rotating wheels and the idle wheels, the arc length of the synchronous belt section between the two rotating wheels can be adjusted, so that the same rolling device can support cylinders of different diameters and drive the cylinders to roll, which has strong versatility. There is no need to configure corresponding rolling devices, rolling rings or other tooling for cylinders of different sizes, which can reduce costs.

[0018] Additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 A schematic diagram of the structure of a rolling device and a track provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of a supporting cylinder of a rolling device provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of a rolling device provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of a rolling assembly of a rolling device provided in an embodiment of the present application; Figure 5 A schematic diagram of the structure of a base of a rolling device provided in an embodiment of the present application; Figure 6A schematic diagram of the structure of a roller frame of a rolling device provided in an embodiment of the present application; Figure 7 A schematic diagram of the structure of an adjusting wheel assembly of a rolling device provided in an embodiment of the present application; Figure 8 A schematic diagram of the structure of an adjustment rod assembly of a rolling device provided in an embodiment of the present application; Fig. 9 A schematic structural diagram of a bracket of a rolling device provided in an embodiment of the present application; Fig.10 A schematic diagram of the structure of a bracket and a track of a rolling device provided in an embodiment of the present application; Fig.11 A schematic diagram of the structure of a rolling device provided in an embodiment of the present application when the supporting radius is R1; Fig.12 A schematic structural diagram of a rolling device provided in an embodiment of the present application when the supporting radius is R2.

[0020] Reference numerals: 100-Rolling equipment; 10-Rolling assembly; 11-base; 111-second guide rail; 12-rolling structure; 121-roller frame; 1211-rotating wheel; 1212-first bracket; 1213-support seat; 1214-first guide rail; 1215-second slide; 1216-reduction motor; 122-adjusting wheel assembly; 1221-idle wheel; 1222-second bracket; 1223-lifting unit; 1224-first slide; 13- Timing belt; 14-adjusting rod assembly; 141-first adjusting rod; 142-second adjusting rod; 143-coupling; 144-first adjusting hand wheel; 145-second adjusting hand wheel; 146-fixing member; 20- bracket; 21-main body; 211-middle part; 212-extension part; 213-baffle; 214-support ear; 215-support foot; 216-fourth adjustment hand wheel; 217-rolling shaft; 218-brake; 22-tightening assembly; 221-fixing portion; 222-tightening rod; 223-third adjusting hand wheel; 200-cylinder; 300-track. DETAILED DESCRIPTION

[0021] The embodiments of the present application are described below in conjunction with the drawings in the present application. It should be understood that the implementation methods described below in conjunction with the drawings are exemplary descriptions for explaining the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions of the embodiments of the present application.

[0022] Those skilled in the art will appreciate that, unless expressly stated, the "said" and "the" used herein may also include plural forms. It should be further understood that the term "including" used in the specification of the present application refers to the presence of the features, integers, elements and / or components, but does not exclude the implementation of other features, information, data, operations, elements, components and / or combinations thereof supported by the technical field. The term "and / or" used herein refers to at least one of the items defined by the term, for example, "A and / or B" may be implemented as "A", or as "B", or as "A and B".

[0023] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0024] First, the nouns involved in this application are introduced and explained: Rolling device: A device that enables the cylinder of a launch vehicle to rotate 360° along its own axis in a horizontal position.

[0025] Cylinder: A cylindrical structure such as a launch vehicle's tank, compartment, assembly or sub-stage rocket.

[0026] During the horizontal attitude assembly of a launch vehicle, in order to facilitate the assembly of parts, pipelines or other equipment inside the rocket body, it is necessary to roll the tank, compartment, assembly or sub-stage rocket and other cylinders at a certain angle.

[0027] Currently, most rolling equipment is used to roll the cylinder, which requires the installation of a rolling ring or other tooling on the rocket body and the use of the rolling equipment to roll the rocket. The operation is cumbersome and inefficient.

[0028] Moreover, existing rolling equipment is difficult to adapt to rockets of different diameters. For rockets of different sizes and specifications, additional rolling equipment, rolling rings or other tooling are required, which is costly.

[0029] The rolling device provided in this application is intended to solve the above technical problems of related technologies.

[0030] The following is a detailed description of the technical solution of the present application and how the technical solution of the present application solves the above technical problems with specific embodiments. It should be noted that the following implementations can refer to, draw on or combine with each other, and the same terms, similar features and similar implementation steps in different implementations will not be described repeatedly.

[0031] The present application embodiment provides a rolling device 100 for rolling a cylinder 200 of a launch vehicle. Please refer to Figure 1 and Figure 2 The rolling device 100 includes: at least two groups of rolling components 10 and a synchronous belt 13.

[0032] At least two groups of rolling assemblies 10 are arranged at intervals along a first direction in a horizontal plane; the rolling assembly 10 includes: a base 11 and a rolling structure 12; the rolling structure 12 includes two roller frames 121 and two adjusting wheel assemblies 122, which are arranged opposite to each other along a second direction; the second direction is perpendicular to the first direction in the horizontal plane; the bottom of the roller frame 121 is slidably connected to the base 11, and a rotating wheel 1211 is arranged on the top; the bottom of the adjusting wheel assembly 122 is fixedly connected to the roller frame 121, and an idler wheel 1221 is arranged on the top; one of the roller frame 121 and the adjusting wheel assembly 122 can be extended and retracted in the vertical direction; The synchronous belt 13 is flexible and is wound around the two rotating wheels 1211 and the two idler wheels 1221; By adjusting at least one of the horizontal spacing between the two rotating wheels 1211 and the vertical spacing between the rotating wheel 1211 and the idler wheel 1221 , the synchronous belt between the two rotating wheels 1211 can support the cylinder 200 of different diameters and drive the cylinder 200 to roll.

[0033] In this embodiment, at least two groups of rolling assemblies 10 are arranged at intervals along the first direction to support the cylinder 200 at multiple points in the first direction. The flexible synchronous belt 13 supports the cylinder 200, and the synchronous belt 13 adaptively deforms to fully contact the outer surface of the middle and lower parts of the cylinder 200, with a large contact area, and has sufficient static friction to maintain the cylinder 200 stable and immobile, thereby driving the cylinder 200 to roll, without the need to use a rolling ring or other tooling to assist in fixing the cylinder 200, which is easy to operate and can improve the rolling efficiency.

[0034] Each set of rolling components 10 includes two rotating wheels 1211 and two idler wheels 1221 arranged at intervals along the second direction. The synchronous belt 13 is wound around the outer peripheries of the two rotating wheels 1211 and the two idler wheels 1221. By adjusting the horizontal interval between the two rotating wheels 1211 and the vertical interval between the rotating wheels 1211 and the idler wheels 1221, the arc length of the synchronous belt 13 between the two rotating wheels 1211 can be adjusted, so that the same rolling device 100 can support cylinders 200 of different diameters and drive the cylinders 200 to roll, which has strong versatility. There is no need to configure corresponding rolling devices 100, rolling rings or other tooling for cylinders 200 of different sizes, which can reduce costs.

[0035] In some possible embodiments, the radius of the arc-shaped synchronous belt 13 between the two rotating wheels 1211 changes with at least one of the horizontal spacing between the two rotating wheels 1211 and the vertical spacing between the rotating wheel 1211 and the idler wheel 1221; the central angles of the arc-shaped synchronous belt 13 with different radii between the two rotating wheels 1211 are equal.

[0036] In this embodiment, please refer to Figure 1-Figure 2 , Figure 11-Figure 12 The section of the synchronous belt 13 between the two rotating wheels 1211 is arc-shaped. By adjusting at least one of the horizontal spacing between the two roller frames 121 and the horizontal spacing between the two rotating wheels 1211, the arc length of the section of the synchronous belt 13 between the two rotating wheels 1211 and the radius corresponding to the arc-shaped section can be changed to adapt to the cylinder 200 with different radii. Moreover, the position of the rotating wheels 1211 changes only in the horizontal direction. By adjusting the horizontal spacing between the rotating wheels 1211 and the vertical spacing between the rotating wheels 1211 and the idler wheel 1221, the position and length of the outer surface of the rotating wheel 1211 covered by the synchronous belt 13 remain unchanged, and the central angle α corresponding to the section of the synchronous belt 13 between the two rotating wheels 1211 remains unchanged, thereby ensuring that the ratio of the outer surface area of ​​the cylinder 200 covered by the synchronous belt to the side area of ​​the cylinder 200 remains unchanged.

[0037] It is understandable that the central angle of the synchronous belt 13 between the two rotating wheels 1211 can be called the wrap angle of the synchronous belt 13, that is, the angle at which the synchronous belt 13 surrounds the cylinder 200. In this embodiment, the wrap angle of the synchronous belt 13 remains unchanged, which can improve the safety of the cylinder 200 during rolling.

[0038] For some possible embodiments, please refer to Figure 4 The two adjusting wheel assemblies 122 are both disposed between the two roller frames 121 .

[0039] The rotating wheels 1211 of the two roller frames 121 are arranged opposite to each other.

[0040] The idler wheels 1221 of the two adjusting wheel assemblies 122 are arranged opposite to each other and are located below the rotating wheel 1211 .

[0041] In this embodiment, two adjusting wheel assemblies 122 are arranged between two roller frames 121, and the rollers are fixed to the adjacent adjusting wheel assemblies 122 to ensure that the horizontal spacing between the rotating wheel 1211 and the idler wheel 1221 is fixed. The synchronous belt 13 is wound between the two rotating wheels 1211 and the two idler wheels 1221 in sequence, and the section between the two rotating wheels 1211 forms an arc. The design support radius is calculated and calibrated according to the position of the roller frame 121, and the specifications of the cylinder 200 adapted to the design support radius are determined. The section between the two idler wheels 1221 is basically straight to ensure that the wrap angle and radius of the synchronous belt 13 are consistent with the design support radius when supporting the cylinder 200.

[0042] For some possible embodiments, please refer to Figure 4 The opposite sides of the two adjusting wheel assemblies 122 are respectively slidably connected to the roller frames 121 close to each other.

[0043] In this embodiment, the opposite sides of the two adjusting wheel assemblies 122 are respectively slidably connected to the roller frames 121 close to each other, which can improve the convenience of adjusting the vertical distance between the rotating wheel 1211 and the corresponding idler wheel 1221.

[0044] For some possible embodiments, please refer to Figure 4 and Figure 6 The roller frame 121 includes: a first bracket 1212 and a support seat 1213 .

[0045] A first guide rail 1214 is disposed on one side of the first bracket 1212 facing the adjusting wheel assembly 122 , and the rotating wheel 1211 is disposed above the first guide rail 1214 .

[0046] The support seat 1213 is disposed below the first bracket 1212 , is slidably connected to the base 11 , and has a bottom that protrudes toward the adjusting wheel assembly 122 .

[0047] In this embodiment, the top of the first bracket 1212 is disposed on both sides of the rotating wheel 1211 toward the side of the adjacent adjusting wheel assembly 122, so that the rotating wheel 1211 is suspended in the circumference, which is convenient for the rotating wheel 1211 to rotate and also provides a setting space for the synchronous belt 13. The rotating wheel 1211 is supported by the first bracket 1212, and the adjusting wheel assembly 122 can also be guided by the first bracket 1212, so that the distance between the rotating wheel 1211 and the idler wheel 1221 in the vertical direction can be adjusted.

[0048] Moreover, the bottom of the support seat 1213 protrudes toward the adjusting wheel assembly 122, and the adjusting wheel assembly 122 is fixed to the protruding portion of the support seat 1213, which can ensure that the relative position between the adjusting wheel assembly 122 and the rolling frame in the horizontal direction remains unchanged.

[0049] For some possible embodiments, please refer to Figure 1 A reduction motor 1216 is provided on the side of the first bracket 1212 and is transmission-connected to the rolling wheel.

[0050] For some possible embodiments, please refer to Figure 7 The adjusting wheel assembly 122 includes: a second bracket 1222 and a lifting unit 1223 .

[0051] The second bracket 1222 has a first slide groove 1224 on one side facing the roller frame 121 for slidingly connecting with the first guide rail 1214, and an idler wheel 1221 is arranged on the top of the other side; The lifting unit 1223 is disposed between the second bracket 1222 and the support base 1213 and is configured to be height-adjustable.

[0052] In this embodiment, the top of the second bracket 1222 is clamped on both sides of the idler wheel 1221 toward the adjacent adjusting wheel assembly 122, so that the idler wheel 1221 is suspended in the circumference, which is convenient for the rotation of the idler wheel 1221 and also provides a setting space for the synchronous belt 13. The bottom of the lifting unit 1223 is fixed to the support seat 1213, and the height of the idler wheel 1221 can be adjusted in the vertical direction.

[0053] For some possible embodiments, please refer to Figure 3 , Figure 5 and Figure 6 A second slide groove 1215 is provided at the bottom of the support seat 1213, and a second guide rail 111 is provided at the top of the base 11. The second guide rail 111 and the second slide groove 1215 are slidably connected with each other.

[0054] For some possible embodiments, please refer to Figure 4 and Figure 8 The rolling structure 12 also includes: an adjusting rod assembly 14.

[0055] The adjustment rod assembly 14 includes a first adjustment rod 141 and a second adjustment rod 142 which are arranged and extended along the second direction, and a coupling 143 .

[0056] A fixing member 146 is fixed to the side surface of the roller frame 121 along the first direction.

[0057] The two ends of the coupling 143 are respectively sleeved outside the ends of the first adjusting rod 141 and the second adjusting rod 142 that are close to each other.

[0058] One end of the first adjusting rod 141 and the second adjusting rod 142 which are away from each other are respectively connected to the fixing members 146 on the two roller frames 121 so as to be axially adjustable.

[0059] In this embodiment, the first adjustment rod 141 and the second adjustment rod 142 of the adjustment rod assembly 14 are connected by a coupling 143, and are respectively fixedly connected to the fixing members 146 on the two roller frames 121, and the fixing positions are adjustable. By adjusting the relative position relationship between the first adjustment rod 141 and the fixing member 146 on the corresponding roller frame 121, and adjusting the relative position relationship between the second adjustment rod 142 and the fixing member 146 on the corresponding roller frame 121, it is possible to ensure that the two roller frames 121 with a spacing are in a relatively static state during the rolling process, thereby ensuring the stability and reliability of the structure.

[0060] Optionally, the fixing member 146 includes a threaded hole, and the outer circumferences of the first adjustment rod 141 and the second adjustment rod 142 are both provided with threads matching the threaded hole, so that the first adjustment rod 141 and the second adjustment rod 142 are inserted into the threaded hole and can move along their respective axial directions.

[0061] Optionally, a first adjusting hand wheel 144 and a second adjusting hand wheel 145 are respectively provided at one end of the first adjusting rod 141 and the second adjusting rod 142 which are away from each other, so as to facilitate the rotation of the first adjusting rod 141 and the second adjusting rod 142 .

[0062] For some possible embodiments, please refer to Figure 3 and Fig. 9 The rolling device 100 also includes: a bracket 20 configured for each group of rolling components 10, the top of the bracket 20 is slidably connected to the base 11 along the second direction, and the bottom of the bracket 20 is movably connected to the track 300 on the ground along the first direction.

[0063] By adjusting the relative positional relationship between each group of rolling assemblies 10 and the matching bracket 20 along the second direction, the synchronous belts 13 of at least two groups of rolling assemblies 10 are made coaxial along the first direction.

[0064] In this embodiment, the bracket 20 can move along the ground rail on the ground, and the rolling assembly 10 can also move as a whole on the bracket 20 along the second direction, so that multiple rolling assemblies 10 are coaxial to adapt to various situations. In this embodiment, the design support radius required by the rolling assembly 10 can be determined first, the rolling assembly 10 can be adjusted to have the design support radius, and then the position of the rolling assembly 10 in the second direction can be adjusted. On the basis that the rolling assembly 10 has a suitable design support radius after assembly, it can be ensured that the design support radius of the rolling assembly 10 remains unchanged during the movement of the rolling assembly 10 in the second direction, thereby ensuring the reliability of the rolling device 100 and the adaptability between the rolling assembly 10 and the cylinder 200.

[0065] Optionally, the first direction may be consistent with the extension direction of the track 300 , or may be consistent with the tangent direction of the track 300 at the location where the rolling assembly 10 is disposed.

[0066] For some possible embodiments, please refer to Fig. 9 The bracket 20 includes a main body 21 and a tightening assembly 22 .

[0067] At least one rolling shaft 217 is disposed on the top of the main body 21 , and the rolling shaft 217 supports the base 11 .

[0068] The clamping assembly 22 includes a fixing portion 221 and a clamping rod 222; the fixing portion 221 is fixed to the end of the main body 21 along the second direction, and the clamping rod 222 is axially adjustable and connected to the fixing portion 221, and one end is used to support the end of the base 11 along the second direction.

[0069] In this embodiment, the rolling direction of the rolling shaft 217 is consistent with the second direction, and the base 11 on the rolling shaft 217 moves along the second direction through the rolling shaft 217, which can improve the moving efficiency. The jacking rod 222 of the jacking assembly 22 supports the end of the base 11 and can be fixed by the fixing portion 221, and then the base 11 is fixed above the bracket 20 after the base 11 reaches a suitable position, ensuring the relative fixation between the base 11 and the bracket 20. When the position of the base 11 needs to be adjusted, it is only necessary to adjust the relative position between the jacking rod 222 and the fixing portion 221, and release the restriction between the jacking rod 222 and the base 11, so that the position of the base 11 can be adjusted, and the operation is simple and convenient.

[0070] Optionally, the fixing portion 221 includes a threaded hole, and a thread matching the threaded hole is provided on the outer periphery of the tightening rod 222, so that the tightening rod 222 is inserted into the threaded hole and can move axially.

[0071] Optionally, a third adjusting hand wheel 223 is provided at the end of the tightening rod 222 away from the base 11 to facilitate the rotation of the tightening rod 222 .

[0072] For some possible embodiments, please refer to Fig. 9 The main body 21 includes: a middle portion 211 , two extension portions 212 and a baffle 213 .

[0073] The two extending portions 212 are disposed on both sides of the middle portion 211 along the second direction, and at least one rolling shaft 217 is disposed on the top of each extending portion 212 .

[0074] The baffle 213 extends along the second direction; along the first direction, at least two baffles 213 are spaced apart and arranged at the top of the middle portion 211 , and the base 11 is arranged between the at least two baffles 213 .

[0075] In this embodiment, the extensions 212 are disposed on both sides of the main body 21, and both extensions 212 extend along the second direction, with a rolling shaft 217 disposed on the top to support the base 11. The baffles 213 are located on both sides of the base 11 to limit the position of the base 11 and prevent the base 11 from shifting along the first direction.

[0076] Optionally, moving wheels are provided at the bottom of the main body 21, and the rolling device 100 is facilitated to move on the track 300 on the ground through the moving wheels.

[0077] For some possible embodiments, please refer to Fig. 9 The main body 21 includes a support ear 214 extending along a first direction. The bracket 20 also includes a support foot 215. The support foot 215 is axially adjustable to the support ear 214, and the bottom end is supported on the ground.

[0078] In this embodiment, the support leg 215 is inserted into the support ear 214 , and the relative position of the support leg 215 and the support ear 214 can be adjusted along the axial direction of the support leg 215 , thereby adjusting the height of the support ear 214 and the ground.

[0079] For some possible embodiments, please refer to Fig. 9 The end of the edge of the extension portion 212 of the main body 21 is provided with a plurality of support ears 214, and each support ear 214 is matched with a respective support foot 215. By adjusting the plurality of support ears 214 and the support foot 215, the top surface of the main body 21 is made level, which is suitable for uneven ground.

[0080] Optionally, refer to Fig. 9 A fourth adjusting hand wheel 216 is provided at the top of the supporting foot 215 to facilitate adjusting the relative position relationship between the supporting foot 215 and the supporting ear 214 and adjusting the height of each supporting ear 214 from the ground.

[0081] Optionally, a brake 218 is provided at the moving wheel arranged below the main body 21 to facilitate fixing the moving wheel.

[0082] The working principle and working process of the rolling device 100 provided in the present application are described below in conjunction with the accompanying drawings.

[0083] Working principle: Fig.10 As shown, at least two brackets 20 are placed on a track 300 on the ground, and the moving wheels are in contact with the track 300; Figure 1As shown, at least two rolling assemblies 10 are respectively arranged on the bracket 20, pushing the bracket 20 to move on the track 300, adjusting the spacing between the rolling assemblies 10, and adapting to cylinders 200 of different lengths; adjusting the positions of at least two rolling assemblies 10 in the first direction to adjust the coaxiality of at least two rolling assemblies 10; the first adjusting rod 141 and the second adjusting rod 142 can realize synchronous rotation under the connection of the coupling 143, and the two rolling frames in the rolling assembly 10 can move away or closer synchronously under the cooperation and drive of their respective corresponding fixing parts 146, and at the same time, the lifting unit 1223 can extend or retract to make the two idle wheels 1221 rise or fall, and the supporting radius at the arc of the synchronous belt 13 can be changed, but the supporting wrap angle remains unchanged, so as to adapt to cylinders 200 of various specifications.

[0084] In order to adapt to the rolling of cylinders 200 of different specifications, the adjustment position of the roller frame 121 can be calculated and calibrated in advance, and the adjustment position of the roller frame 121 of arrow bodies of different specifications can be marked, so that the position of the roller frame 121 can be directly adjusted according to the specifications of the cylinder 200 to be rolled, without the need for multiple tests again.

[0085] Workflow: 1. If Fig.10 As shown, at least two brackets 20 are placed on the track 300 .

[0086] 2. If Figure 1 As shown, at least two rolling assemblies 10 are placed on the bracket 20 in a one-to-one correspondence.

[0087] 3. Push the bracket 20 to move on the track 300 to the required spacing.

[0088] 4. The brake 218 is actuated to make the bracket 20 stationary on the track 300.

[0089] 5. Adjust the coaxiality of at least two rolling assemblies 10.

[0090] 6. If Figure 2 As shown, the cylinder 200 is hoisted onto the synchronous belt 13 .

[0091] 7. Start the reduction motor 1216 to achieve the rolling of the cylinder 200.

[0092] 8. If it is necessary to roll a cylinder 200 of other specifications, shake the first adjusting hand wheel 144 and the second adjusting hand wheel 145 on both sides of the roller frame 121 to make the two adjusting wheel assemblies 122 and the two roller frames 121 move away or closer synchronously, and at the same time, the lifting unit 1223 extends or retracts to make the two sets of idle wheels 1221 rise or fall.

[0093] like Fig.12As shown, the supporting radius changes from R1 to R2, the distance between the two roller frames 121 changes from L1 to L2, the size of the lifting unit 1223 changes from P1 to P2, but the wrap angle α of the synchronous belt 13 remains unchanged.

[0094] By applying the embodiments of the present application, at least the following beneficial effects can be achieved: At least two groups of rolling assemblies 10 are arranged at intervals along the first direction to support the cylinder 200 at multiple points in the first direction. The flexible synchronous belt 13 supports the cylinder 200, and the synchronous belt 13 adaptively deforms to fully contact the outer surface of the middle and lower parts of the cylinder 200, with a large contact area, and has sufficient static friction to maintain the cylinder 200 stable and immobile, thereby driving the cylinder 200 to roll, without the need to use a rolling ring or other tooling to assist in fixing the cylinder 200, which is easy to operate and can improve the rolling efficiency.

[0095] Each set of rolling components 10 includes two rotating wheels 1211 and two idler wheels 1221 arranged at intervals along the second direction. The synchronous belt 13 is wound around the outer peripheries of the two rotating wheels 1211 and the two idler wheels 1221. By adjusting the horizontal interval between the two rotating wheels 1211 and the vertical interval between the rotating wheels 1211 and the idler wheels 1221, the arc length of the synchronous belt 13 between the two rotating wheels 1211 can be adjusted, so that the same rolling device 100 can support cylinders 200 of different diameters and drive the cylinders 200 to roll, which has strong versatility. There is no need to configure corresponding rolling devices 100, rolling rings or other tooling for cylinders 200 of different sizes, which can reduce costs.

[0096] In the description of the present application, the directions or positional relationships indicated by words such as "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the exemplary directions or positional relationships shown in the accompanying drawings. They are for the convenience of describing or simplifying the description of the embodiments of the present application, and do not indicate or imply that the referred device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0097] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0098] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection 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 this application can be understood according to specific circumstances.

[0099] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0100] The above is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the technical concept of the scheme of the present application, other similar implementation methods based on the technical ideas of the present application are also within the protection scope of the embodiments of the present application.

Claims

1. A rolling device, characterized in that: The cylinder for a rolling launch vehicle comprises: At least two groups of rolling assemblies are arranged at intervals along a first direction in a horizontal plane; the rolling assembly comprises: a base and a rolling structure; the rolling structure comprises two roller frames and two adjusting wheel assemblies that are arranged opposite to each other along a second direction; the second direction is perpendicular to the first direction in the horizontal plane; the bottom of the roller frame is slidably connected to the base, and a rotating wheel is arranged on the top; the bottom of the adjusting wheel assembly is fixedly connected to the roller frame, and an idler wheel is arranged on the top; one of the roller frame and the adjusting wheel assembly can be telescopic in the vertical direction; A synchronous belt, which is flexible and wound around the outer circumferences of the two rotating wheels and the two idler wheels; By adjusting at least one of the horizontal spacing between the two rotating wheels and the vertical spacing between the rotating wheel and the idler wheel, the synchronous belt between the two rotating wheels can support the cylinders with different diameters and drive the cylinders to roll.

2. The rolling device according to claim 1, characterized in that: The radius of the arc-shaped synchronous belt between the two rotating wheels changes with at least one of the horizontal spacing between the two rotating wheels and the vertical spacing between the rotating wheel and the idler wheel; the central angles of the arc-shaped synchronous belts with different radii between the two rotating wheels are equal.

3. The rolling device according to claim 1, characterized in that: The two adjusting wheel assemblies are both arranged between the two roller frames; The rotating wheels of the two roller frames are arranged opposite to each other; The idle wheels of the two adjusting wheel assemblies are arranged opposite to each other and are located below the rotating wheel.

4. The rolling device according to claim 3, characterized in that: The opposite sides of the two adjusting wheel assemblies are respectively slidably connected to the roller frames close to each other.

5. The rolling device according to claim 4, characterized in that: The roller frame comprises: A first bracket, a first guide rail is provided on one side facing the adjusting wheel assembly, and a rotating wheel is arranged above the first guide rail; The support seat is arranged below the first bracket, is slidably connected to the base, and has a bottom that protrudes toward the adjusting wheel assembly.

6. The rolling device according to claim 5, characterized in that: The adjusting wheel assembly comprises: A second bracket, having a first slide groove on one side facing the roller frame, for slidingly connecting with the first guide rail, and the idler wheel is arranged on the top of the other side; The lifting unit is disposed between the second bracket and the support seat and is configured to be height-adjustable.

7. The rolling device according to claim 1, characterized in that: The rolling structure further comprises: An adjusting rod assembly, comprising a first adjusting rod and a second adjusting rod arranged and extending along a second direction, and a coupling; A fixing piece is fixed to the side of the roller frame along the first direction; The two ends of the coupling are respectively sleeved outside the ends of the first adjusting rod and the second adjusting rod that are close to each other; One end of the first adjusting rod and the other end of the second adjusting rod that are away from each other are respectively connected to the fixing members on the two roller frames so as to be axially adjustable.

8. The rolling device according to claim 1, characterized in that: The rolling device also includes: A bracket configured for each set of rolling assemblies, the top of which is slidably connected to the base along the second direction, and the bottom of which is movably connected to a track on the ground along the first direction; By adjusting the relative positional relationship between each group of the rolling assemblies and the matching brackets along the second direction, the synchronous belts of at least two groups of the rolling assemblies are made coaxial along the first direction.

9. The rolling device according to claim 8, characterized in that: The bracket comprises: The main body has at least one rolling shaft disposed on the top, and the rolling bearing supports the base; The clamping assembly includes a fixing portion and a clamping rod; the fixing portion is fixed to the end of the main body along the second direction, the clamping rod is axially adjustable and connected to the fixing portion, and one end is used to support the end of the base along the second direction.

10. The rolling device according to claim 9, characterized in that: The main body comprises: middle part; Two extension parts are arranged on both sides of the middle part along the second direction, and at least one rolling axis is arranged on the top of each extension part; The baffle extends along the second direction; along the first direction, at least two baffles are arranged at a distance from each other at the top of the middle part, and the base is arranged between at least two of the baffles.

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