Auxiliary assembling device for steel box girder bridge and use method thereof

Abstract

The application provides an auxiliary assembling device for a steel box girder bridge and a use method thereof. The device comprises a base, fixed mounting blocks and movable mounting blocks which are spaced apart along a first direction are arranged on the base, the movable mounting blocks are connected to the base through first air cylinders, and piston rods of the first air cylinders extend along the first direction; bottom plate limiting mechanisms, web limiting mechanisms and top plate limiting mechanisms which are spaced apart along a second direction are respectively arranged on the fixed mounting blocks and the movable mounting blocks; the bottom plate limiting mechanisms comprise a plurality of third air cylinders which are spaced apart along a third direction, piston rods of the third air cylinders extend along the second direction and are respectively connected to bottom plate clamps; the web limiting mechanisms comprise a sixth air cylinder, a piston rod of the sixth air cylinder extends along the first direction and is connected to a web clamp; the top plate limiting mechanisms comprise a ninth air cylinder, a piston rod of the ninth air cylinder extends along the second direction and is in non-contact cooperation with the base, and the first direction, the second direction and the third direction are orthogonal to each other. The device can adapt to the assembling requirements of steel box girder bridges of different specifications and improve production efficiency.

Description

Technical Field

[0001] This invention relates to the field of steel box girder bridge assembly technology, and in particular to an auxiliary assembly device and method for using steel box girder bridges. Background Technology

[0002] Steel box girder bridges are typically assembled from several basic modules, such as Figure 1 As shown, each basic module includes a top plate, a bottom plate, and two web plates connecting the two. The top plate and bottom plate are vertically spaced and face each other. The web plates are located between the top plate and bottom plate and are fixedly connected to the top plate and bottom plate respectively. The top plate and web plates are both flat plates, while the bottom plate is a curved plate. Along the length of the basic module, the bottom plate is curved; along the width of the basic module, the top plate and bottom plate each have flange portions extending beyond the web plates.

[0003] Currently, the assembly of the aforementioned basic modules mainly adopts welding. To ensure welding accuracy, corresponding support and positioning fixtures need to be erected according to the specific dimensions of the basic modules. However, the existing support and positioning fixtures are all custom-designed for basic modules of specific specifications. Their structures are fixed and their versatility is poor. When processing basic modules of different specifications, it is necessary to redesign and manufacture the corresponding fixtures, resulting in long production preparation cycles, high fixture costs, and low production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary assembly device and method for using steel box girder bridges, thereby addressing the shortcomings in the aforementioned background technology.

[0005] The technical solution of the present invention is: an auxiliary assembly device for a steel box girder bridge, comprising a base, on which fixed mounting blocks and movable mounting blocks are provided at intervals along a first direction. The movable mounting blocks are movably connected to the base via a first cylinder, the piston rod of the first cylinder extending along the first direction. The fixed mounting blocks and the movable mounting blocks are respectively provided with a bottom plate limiting mechanism, a web plate limiting mechanism, and a top plate limiting mechanism at intervals along a second direction. The bottom plate limiting mechanism includes a plurality of third cylinders at intervals along a third direction, the piston rods of each third cylinder extending along the second direction and their free ends respectively connected to a bottom plate clamp. The web plate limiting mechanism includes a sixth cylinder, the piston rod of the sixth cylinder extending along the first direction and its free end connected to a web plate clamp. The top plate limiting mechanism includes a ninth cylinder, the piston rod of the ninth cylinder extending along the second direction and its free end non-contactly engaging with the base. The first direction, the second direction, and the third direction are all orthogonal to each other.

[0006] Furthermore, the base includes at least a first base plate and a plurality of second cylinders, at least some of the second cylinders being spaced apart along the third direction, and the piston rod of each second cylinder extending along the second direction with its free end connected to the first base plate.

[0007] Furthermore, the base is provided with a slide groove extending in the same direction as the first cylinder, and a slider is provided in the slide groove. The end of the slider extending out of the slide groove is connected to the movable mounting block.

[0008] Furthermore, the base is provided with a limiting sleeve extending along the first direction, and a limiting slide rod is inserted through the limiting sleeve; one end of the limiting slide rod is fixedly connected to a movable mounting block, and the other end is movably connected to the limiting sleeve; the auxiliary assembly device includes a locking member, the limiting sleeve is provided with a plurality of first pin holes spaced apart along the first direction, the limiting slide rod is provided with a plurality of second pin holes spaced apart along the first direction, and the locking member is selectively inserted into the first pin hole and the corresponding second pin hole.

[0009] Furthermore, a fourth cylinder is provided on both the fixed mounting block and the movable mounting block, and the piston rod of the fourth cylinder extends along the first direction and its free end is connected to the third cylinder.

[0010] Furthermore, the free end of the third cylinder is provided with a first angle adjustment assembly, which includes a first shaft support, a first servo motor, and a first rotating shaft. The first rotating shaft extends along the first direction and is rotatably connected to the first shaft support. The output shaft of the first servo motor is drivenly connected to the first rotating shaft. The base plate clamp is fixedly connected to the first rotating shaft. A first protective box is provided on the first shaft support. The output shaft of the first servo motor is connected to a first transmission gear located inside the first protective box. A second transmission gear is sleeved on the first rotating shaft. The first transmission gear and the second transmission gear are meshed together.

[0011] Furthermore, the fixed mounting base and the movable mounting base are each provided with an eighth cylinder, and the piston rod of the eighth cylinder extends along the third direction and its free end is connected to the sixth cylinder.

[0012] Furthermore, the free end of the sixth cylinder is provided with a second angle adjustment assembly, which includes a second shaft support, a second servo motor, and a second rotating shaft. The second rotating shaft extends along the third direction and is rotatably connected to the second shaft support. The output shaft of the second servo motor is drivenly connected to the second rotating shaft. The web plate clamp is fixedly connected to the second rotating shaft. A second protective box is provided on the second shaft support. The output shaft of the second servo motor is connected to a third transmission gear located inside the second protective box. A fourth transmission gear is sleeved on the second rotating shaft. The third transmission gear and the fourth transmission gear are meshed together.

[0013] Furthermore, the base plate clamp includes a first C-shaped frame, a first movable clamping plate, and a fifth cylinder, the piston rod of the fifth cylinder extending along the second direction; the first movable clamping plate is disposed inside the first C-shaped frame and is connected to a wing plate of the first C-shaped frame through the fifth cylinder.

[0014] Furthermore, the web plate clamp includes a second C-shaped frame, a second movable clamping plate, and a seventh cylinder, the piston rod of the seventh cylinder extending along the first direction; the second movable clamping plate is disposed inside the second C-shaped frame and is connected to a wing plate of the second C-shaped frame through the seventh cylinder.

[0015] The technical solution of the present invention also includes: a method for using the auxiliary assembly device for the above-mentioned steel box girder bridge, which includes the following steps:

[0016] The top plate is placed on the base, and the movable mounting block is driven by the first cylinder so that the fixed mounting block and the movable mounting block abut against the opposite sides of the top plate; the top plate is pressed by the ninth cylinder.

[0017] The web plate is placed in the web plate clamp, and the sixth cylinder drives the web plate to move along the first direction to the designed position.

[0018] The top plate is placed in the top plate clamp, and the sixth cylinder drives the top plate clamp to lift and lower until the top plate is in the designed position.

[0019] The assembly operation of the steel box girder bridge was carried out.

[0020] The beneficial effects of this invention include: the auxiliary assembly device provided by this invention, by setting relatively movable fixed mounting blocks and movable mounting blocks, and vertically spaced top plate limiting mechanism, web plate limiting mechanism and bottom plate limiting mechanism, realizes rapid adaptation of basic modules of different width specifications; the bottom plate limiting mechanism adopts multiple independently controlled third cylinders, which can flexibly adjust the support height according to the curvature of the bottom plate to realize contour positioning of curved bottom plates; this device does not require the re-manufacturing of tooling for different specifications, significantly improving versatility, shortening the production preparation cycle, reducing costs, and improving production efficiency and assembly accuracy. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of a steel box girder bridge;

[0022] Figure 2 This is a front view of an embodiment of the present invention;

[0023] Figure 3 This is a partial structural side view of an embodiment of the present invention;

[0024] Figure 4 This is a partial top view of an embodiment of the present invention;

[0025] Figure 5 This is a front view of the base plate limiting mechanism in an embodiment of the present invention;

[0026] Figure 6 This is an appendix to the embodiments of the present invention. Figure 5 Enlarged view of the structure at point A in the middle;

[0027] Figure 7 This is a front sectional view of the first angle adjustment component in an embodiment of the present invention;

[0028] Figure 8 This is a partial structural front view of an embodiment of the present invention;

[0029] Figure 9 This is an appendix to the embodiments of the present invention. Figure 8 Enlarged view of the structure at point B;

[0030] Figure 10 This is an appendix to the embodiments of the present invention. Figure 8 Enlarged view of the structure at point C;

[0031] Figure 11 This is a side sectional view of the second angle adjustment component in an embodiment of the present invention;

[0032] Figure 12 This is a side view of the arched bridge frame in an embodiment of the present invention.

[0033] In the picture:

[0034] 1. First cylinder;

[0035] 2. Base; 2-1. First substrate; 2-11. Slide groove; 2-2. Second substrate; 2-3. Second cylinder;

[0036] 3. Fixed mounting block;

[0037] 4. Movable mounting block;

[0038] 5. Base plate limiting mechanism; 5-1. Third cylinder; 5-2. Fourth cylinder; 5-3. Base plate clamp; 5-31. First C-shaped frame; 5-32. First movable clamping plate; 5-33. Fifth cylinder; 5-4. First angle adjustment assembly; 5-41. First shaft support; 5-42. First servo motor; 5-43. First rotating shaft; 5-44. First protective box; 5-45. First transmission gear; 5-46. Second transmission gear;

[0039] 6. Web plate limiting mechanism; 6-1. Sixth cylinder; 6-2. Web plate clamp; 6-21. Second C-shaped frame; 6-22. Second movable clamping plate; 6-23. Seventh cylinder; 6-3. Eighth cylinder; 6-4. Second angle adjustment assembly; 6-41. Second shaft support; 6-42. Second servo motor; 6-43. Second rotating shaft; 6-44. Second protective box; 6-45. Third transmission gear; 6-46. Fourth transmission gear;

[0040] 7. Top plate limiting mechanism; 7-1. Ninth cylinder;

[0041] 8. Adapter block; 8-1. First adapter section; 8-2. Second adapter section; 8-3. Third adapter section;

[0042] 9. Slider;

[0043] 10. Limiting sleeve; 10-1. First pin hole;

[0044] 11. Limiting slide bar; 11-1. Second pin hole;

[0045] 12. Locking components;

[0046] 13. Prevents blockage;

[0047] 14. Arched cable tray;

[0048] 15. Foundation module for steel box girder bridge; 15-1. Top slab; 15-2. Bottom slab; 15-3. Web plate;

[0049] a-a', First direction;

[0050] b-b', second direction;

[0051] c-c', third-party direction. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0053] In the description of the embodiments of this invention, it should be understood that the terms "top," "bottom," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and 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. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "set" and "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention through specific circumstances.

[0054] Reference Appendix Figure 2-12 The present invention provides an auxiliary assembly device for a steel box girder bridge. The device includes a necessary industrial control system, as well as a base 2, a fixed mounting block 3, a movable mounting block 4, a bottom plate limiting mechanism 5, a web plate limiting mechanism 6, a top plate limiting mechanism 7, etc.

[0055] The fixed mounting block 3 is fixedly set on the base 2, and the movable mounting block 4 is movably set on the base 2. The fixed mounting block 3 and the movable mounting block 4 are spaced apart along the first direction a-a'. The base 2 is provided with a first cylinder 1. The piston rod of the first cylinder 1 extends along the first direction a-a' and its free end is connected to the movable mounting block 4. Thus, when the piston rod of the first cylinder 1 is extended and retracted under the control of the industrial control system, it can drive the movable mounting block 4 to move along the first direction a-a' on the base 2, thereby achieving the purpose of driving the movable mounting block 4 to move closer to or away from the fixed mounting block 3.

[0056] The fixed mounting block 3 and the movable mounting block 4 are respectively provided with a bottom plate limiting mechanism 5, a web plate limiting mechanism 6, and a top plate limiting mechanism 7. The bottom plate limiting mechanism 5, web plate limiting mechanism 6, and top plate limiting mechanism 7 on the fixed mounting block 3 are arranged at intervals along the second direction b-b', and the bottom plate limiting mechanism 5, web plate limiting mechanism 6, and top plate limiting mechanism 7 on the movable mounting block 4 are arranged at intervals along the second direction b-b'. The second direction b-b' is orthogonal to the first direction a-a'. Furthermore, the bottom plate limiting mechanism 5 on the fixed mounting block 3 corresponds to the bottom plate limiting mechanism 5 on the movable mounting block 4, the web plate limiting mechanism 6 on the fixed mounting block 3 corresponds to the web plate limiting mechanism 6 on the movable mounting block 4, and the top plate limiting mechanism 7 on the fixed mounting block 3 corresponds to the top plate limiting mechanism 7 on the movable mounting block 4. Thus, the first cylinder 1 drives the movable mounting block 4. When the mounting block 4 approaches or moves away from the fixed mounting block 3, the bottom plate limiting mechanism 5 on the movable mounting block 4 approaches or moves away from the bottom plate limiting mechanism 5 on the fixed mounting block 3, the web plate limiting mechanism 6 on the movable mounting block 4 approaches or moves away from the web plate limiting mechanism 6 on the fixed mounting block 3, and the top plate limiting mechanism 7 on the movable mounting block 4 approaches or moves away from the top plate limiting mechanism 7 on the fixed mounting block 3. The bottom plate limiting mechanism 5 is used to limit the bottom plate 15-2 of the steel box girder bridge foundation module 15, the web plate limiting mechanism 6 is used to limit the two web plates 15-3 of the steel box girder bridge foundation module 15, and the top plate limiting mechanism 7 is used to limit the top plate 15-1 of the steel box girder bridge foundation module 15. Thus, when assembled with steel box girder bridge foundation modules 15 of different specifications in the width direction, it provides precise matching auxiliary support and limiting function.

[0057] Reference Appendix Figure 3 , 4 8. The base plate limiting mechanism 5 includes a plurality of third cylinders 5-1 spaced apart along a third direction c-c'. The piston rod of each third cylinder 5-1 extends along a second direction b-b' and its free end is connected to the base plate clamp 5-3. The third direction c-c' is orthogonal to the first direction a-a' and the third direction c-c' is orthogonal to the second direction b-b'. The web plate limiting mechanism 6 includes a sixth cylinder 6-1. The piston rod of the sixth cylinder 6-1 extends along a first direction a-a' and its free end is connected to the web plate clamp 6-2. The top plate limiting mechanism 7 includes a ninth cylinder 7-1. The piston rod of the ninth cylinder 7-1 extends along a second direction b-b' and its free end is in non-contact engagement with the base 2.

[0058] In a specific embodiment, the first direction a-a' refers to a horizontal direction, the second direction b-b' refers to a vertical direction, and the third direction c-c' refers to another horizontal direction orthogonal to the first direction a-a', i.e., as shown in the attached figure. Figure 2As shown, the fixed mounting block 3 and the movable mounting block 4 are installed side by side on the base 2 in a transverse direction. A set of top plate limiting mechanisms 7, web plate limiting mechanisms 6 and bottom plate limiting mechanisms 5 are arranged sequentially from bottom to top on the fixed mounting block 3, and another set of top plate limiting mechanisms 7, web plate limiting mechanisms 6 and bottom plate limiting mechanisms 5 are arranged sequentially from bottom to top on the movable mounting block 4. Since the bottom plate 15-2 of the steel box girder bridge foundation module 15 is a curved plate, if it is assembled according to the direction of the steel box girder bridge in use, the support and limiting work of the bottom plate 15-2 will become very complicated. Therefore, this solution provides the above-mentioned auxiliary device for the inverted assembly of the steel box girder bridge foundation module 15.

[0059] When assembling the steel box girder bridge foundation module 15 using this device, the top plate 15-1 of the steel box girder bridge is hoisted onto the base 2, so that the side end of the top plate 15-1 along its own width direction abuts against the side end of the fixed mounting block 3. The first cylinder 1 drives the movable mounting block 4 closer to the fixed mounting block 3, until the side end of the movable mounting block 4 abuts against the other side end of the top plate 15-1 along its own width direction. Thus, the fixed mounting block 3 and the movable mounting block 4 limit the width direction of the top plate 15-1. Then, the ninth cylinder 7-1 on the fixed mounting block 3 and the movable mounting block 4 presses the top plate 15-1 downwards to prevent the top plate 15-1 from shifting along its own length direction during assembly, thereby improving... High assembly precision; then, the two web plates 15-3 are hoisted onto this device, and the two web plates 15-3 are fixed using the web plate clamps 6-2. By using the extension and retraction of the sixth cylinder 6-1 on the fixed mounting block 3 and the movable mounting block 4, the distance between the two web plates 15-3 and the distance between the web plates 15-3 and the side end of the top plate 15-1 can be adjusted along the width direction of the steel box girder bridge foundation module 15. Then, according to the bending trend of the bottom plate 15-2, the height of the piston rods of the multiple third cylinders 5-1 arranged along the third direction c-c' is adjusted so that the bottom plate clamps 5-3 located at the top of their piston rods are at different heights. Then, the bottom plate 15-2 is fixed at the bottom plate clamps 5-3 of the hoisting device, and the assembly and connection work can begin.

[0060] The auxiliary assembly device provided by this invention, by setting up relatively movable fixed mounting blocks 3 and movable mounting blocks 4, and vertically spaced top plate limiting mechanism 7, web plate limiting mechanism 6, and bottom plate limiting mechanism 5, achieves rapid adaptation to basic modules of different width specifications. The bottom plate limiting mechanism 5 adopts multiple independently controlled third cylinders 5-1, which can flexibly adjust the support height according to the curvature of the bottom plate 15-2 to achieve contour positioning of the curved bottom plate 15-2. This device eliminates the need to remake tooling for different specifications, significantly improves versatility, shortens the production preparation cycle, reduces costs, and improves production efficiency and assembly accuracy.

[0061] In one specific embodiment of the present invention, considering that the top plate 15-1 of some steel box girder bridges is not completely horizontal in use, but has a slight slope (e.g., 2%) along its length, this slope is a structural feature of the top plate 15-1 itself, rather than an inclination angle formed when the steel box girder bridge is installed as a whole on the foundation, refer to the attached... Figure 2 , 3 8. To improve assembly accuracy and applicability of the device, the base 2 in this embodiment includes a first base plate 2-1 and a plurality of second cylinders 2-3. At least some of the second cylinders 2-3 are spaced apart along a third direction c-c'. The piston rod of each second cylinder 2-3 extends along a second direction b-b', and the free end of the piston rod of each second cylinder 2-3 is connected to the first base plate 2-1, that is, the first base plate 2-1 is positioned above the second cylinders 2-3. To ensure the stability of the support for the first base plate 2-1, the second cylinders 2-3 should not be arranged in a straight line. Therefore, in this embodiment, two sets of second cylinders 2-3 are spaced apart along the second direction b-b', and a plurality of second cylinders 2-3 in each set are spaced apart along a third direction c-c'. In use, by adjusting the extension and retraction state of the piston rods of different second cylinders 2-3 in each set, the tilt angle of the first base plate 2-1 relative to the horizontal plane can be adjusted, thereby adapting to the support requirements of the top plate 15-1 with different slopes.

[0062] In one specific embodiment of the present invention, the bottom end of the second cylinder 2-3 can be directly placed on the ground, and the piston rod extends upward along the second direction b-b' and connects to the first base plate 2-1. In another embodiment, a second base plate 2-2 can be provided at the bottom end of the second cylinder 2-3, and multiple second cylinders 2-3 can be fixed to the second base plate 2-2. The second base plate 2-2 is placed on the ground or a work platform, and the piston rod of the second cylinder 2-3 also extends upward along the second direction b-b' and connects to the first base plate 2-1. Both configurations allow for adjustment of the tilt angle of the first base plate 2-1 through the independent extension and retraction of each second cylinder 2-3, and can be flexibly selected based on site conditions, accuracy requirements, and cost.

[0063] Reference Appendix Figure 8 To improve the smoothness and stability of the movement of the movable mounting block 4, the movable mounting block 4 adopts a regular geometric shape, such as a cube structure. The bottom surface of the movable mounting block 4 slides in contact with the top surface of the first base plate 2-1. A sliding groove 2-11 is provided on the first base plate 2-1, and the extension direction of the sliding groove 2-11 is consistent with the extension and retraction direction of the first cylinder 1. A slider 9 is provided in the sliding groove 2-11, and the slider 9 slides in conjunction with the sliding groove 2-11. The end of the slider 9 extending out of the sliding groove 2-11 is fixedly connected to the movable mounting block 4. Through the cooperation of the slider 9 and the sliding groove 2-11, the movement of the movable mounting block 4 can be guided, further improving the smoothness and stability of the movement.

[0064] The location of the slide groove 2-11 can be flexibly selected according to actual needs, preferably without hindering the normal operation of other mechanisms. For example, the slide groove 2-11 can be located on the top or side surface of the first substrate 2-1, and the specific location should be determined according to the overall structural layout and space conditions. In this embodiment, the slide groove 2-11 is located on the side surface of the first substrate 2-1.

[0065] Reference Appendix Figure 9 To ensure the stability of the movable mounting block 4 during the assembly of the steel box girder bridge foundation module 15, thereby ensuring the assembly accuracy of the steel box girder bridge foundation module 15, this embodiment also includes a limiting sleeve 10, a limiting slide rod 11, and a locking member 12. The limiting sleeve 10 is fixed to the first base plate 2-1 and extends axially along the first direction a-a'. The limiting slide rod 11 slides through the limiting sleeve 10, with one end of the limiting slide rod 11 fixedly connected to the movable mounting block 4 and the other end connected to the limiting sleeve 10 via the locking member 12. Specifically, the limiting sleeve 10 has a plurality of first pin holes 10-1 spaced apart along the first direction a-a', and the limiting slide rod 11 has a plurality of second pin holes 11-1 spaced apart along the first direction a-a'. The locking member 12 is selectively inserted into the first pin hole 10-1 and its corresponding second pin hole 11-1. After the first cylinder 1 adjusts the position of the movable mounting block 4, the locking element 12 locks the relative position of the limiting slide rod 11 and the limiting sleeve 10, thereby achieving reliable limiting of the movable mounting block 4. Optionally, the locking element 12 can be a bolt.

[0066] Reference Appendix Figure 4 , 8The connection method between the limiting sleeve 10 and the first base plate 2-1 can be designed according to actual needs, so as not to hinder the normal operation of other components. This embodiment provides a specific connection scheme: the first cylinder 1 is disposed on the side end of the first base plate 2-1, and the piston rod of the first cylinder 1 and the slider 9 are simultaneously connected to a transition block 8. The transition block 8 includes a first transition part 8-1, a second transition part 8-2, and a third transition part 8-3. The first transition part 8-1 is in sliding contact with the side end of the first base plate 2-1, the second transition part 8-2 is in sliding contact with the top end of the first base plate 2-1, and the third transition part 8-3 is also in sliding contact with the top end of the first base plate 2-1. The second transition part 8-2 extends along a third direction c-c' and its two ends are respectively connected to the first transition part 8-1 and the third transition part 8-3. 3 extends along the second direction b-b', and its end away from the second transition part 8-2 is connected to the movable mounting block 4. Through the above structure, the first cylinder 1 is assembled in a position that does not interfere with the operation of other mechanisms, and its extension and retraction action is transmitted to the movable mounting block 4 through the transition block 8. The limiting sleeve 10 is connected to the first base plate 2-1 through the arched bridge 14. The arched bridge 14 spans above the third transition part 8-3, with one end connected to the side end of the first base plate 2-1 and the other end connected to the limiting sleeve 10, thereby suspending the limiting sleeve 10 above the first base plate 2-1. This structure achieves the support and fixation of the limiting slide rod 11 without affecting the movement of the transition block 8.

[0067] To improve the locking effect and ensure the stable position of the movable mounting block 4 during assembly, a locking assembly consisting of an arched bridge 14, a limiting sleeve 10, and a limiting slide rod 11 can be installed on both sides of the movable mounting block 4 along the second direction b-b'. The locking structures on both sides are symmetrically arranged to provide stable constraint on the movable mounting block 4, preventing it from deflecting or shaking under force. The adapter block 8 only needs to be installed on the side of the movable mounting block 4 away from the fixed mounting block 3, instead of both sides, to simplify the structure, reduce costs, and not affect the driving function of the first cylinder 1 on the movable mounting block 4.

[0068] Reference Appendix Figure 9 To prevent the limiting slide rod 11 from slipping out of the limiting sleeve 10, an anti-slip block 13 is provided at the end of the limiting slide rod 11 away from the movable mounting block 4. The outer diameter of the anti-slip block 13 is larger than the inner diameter of the limiting sleeve 10. When the first cylinder 1 drives the movable mounting block 4 to move to the limit position, the anti-slip block 13 can form mechanical interference with the end of the limiting sleeve 10, thereby effectively limiting the maximum extension length of the limiting slide rod 11 and preventing the limiting slide rod 11 from disengaging from the limiting sleeve 10 due to excessive cylinder stroke or misoperation, thus ensuring the reliability and safety of the locking structure.

[0069] Based on the actual structure of the steel box girder bridge, it is known that both the top plate 15-1 and the bottom plate 15-2 in the foundation module 15 of the steel box girder bridge have flanges extending beyond the web 15-3 in the width direction. The flange of the bottom plate 15-2 provides clamping points for the bottom plate clamp 5-3. However, in actual applications, although the centers of the top plate 15-1 and the bottom plate 15-2 correspond to each other in the width direction in the assembled state, their widths are usually not equal in foundation modules 15 of different specifications of steel box girder bridges. Therefore, refer to the appendix... Figure 5 In this embodiment, a fourth cylinder 5-2 is provided on both the fixed mounting block 3 and the movable mounting block 4. The piston rod of the fourth cylinder 5-2 extends along the first direction a-a', and its free end is connected to the third cylinder 5-1. By extending and retracting the fourth cylinder 5-2, the position of the third cylinder 5-1 and the bottom plate clamp 5-3 connected to its top end can be changed in the first direction a-a', thereby achieving adaptation to top plates 15-1 of different widths and meeting the assembly requirements of foundation modules 15 of various specifications of steel box girder bridges.

[0070] Furthermore, considering that the plate thicknesses used in steel box girder bridges of different specifications vary, this embodiment designs the bottom plate clamp 5-3 as an adjustable structure, as shown in the attached figure. Figure 6 The base plate clamp 5-3 includes a first C-shaped frame 5-31, a first movable clamping plate 5-32, and a fifth cylinder 5-33. The first C-shaped frame 5-31 located on the fixed mounting block 3 and the first C-shaped frame 5-31 located on the movable mounting block 4 have their openings facing each other, jointly clamping the two side ends of the base plate 15-2 along the width direction. The first movable clamping plate 5-32 and the fifth cylinder 5-33 are both located inside the first C-shaped frame 5-31. The piston rod of the fifth cylinder 5-33 extends along the second direction b-b' and is connected to one wing plate of the first C-shaped frame 5-31. The first movable clamping plate 5-32 is positioned opposite to the other wing plate of the first C-shaped frame 5-31. By extending and retracting the fifth cylinder 5-33, the first movable clamping plate 5-32 can be moved, thereby changing the distance between the first movable clamping plate 5-32 and the opposite wing plate, thus achieving the clamping or loosening of the base plate 15-2.

[0071] Considering that the base plate 15-2 has a curved structure, and the base plate clamp 5-3 clamps and fixes the upper and lower surfaces of the base plate 15-2 through the wing plate of the first C-shaped frame 5-31 and the first movable clamping plate 5-32, although the third cylinder 5-1 can change the height of the base plate clamp 5-3 to match the height of various points along the length of the base plate 15-2, the base plate 15-2 is curved. If all the base plate clamps 5-3 are in the same direction, only a few base plate clamps 5-3 can be clamped outside the base plate 15-2, and the other base plate clamps 5-3 will interfere with the side of the base plate 15-2 due to the mismatch in angle. Therefore, in this embodiment, a first angle adjustment component 5-4 is provided at the free end of the third cylinder 5-1. (Refer to the attached diagram.) Figure 3and 7 The first angle adjustment component 5-4 includes a first shaft support 5-41, a first servo motor 5-42, and a first rotating shaft 5-43. The first rotating shaft 5-43 extends along a first direction a-a' and is rotatably connected to the first shaft support 5-41. The output shaft of the first servo motor 5-42 is drive-connected to the first rotating shaft 5-43. The base plate clamp 5-3 is fixedly connected to the first rotating shaft 5-43. When the first servo motor 5-42 drives the first rotating shaft 5-43 to rotate, the tilt angle of the base plate clamp 5-3 can be changed, thereby adapting to the clamping requirements of different positions on the base plate 15-2.

[0072] More specifically, as an optional transmission method, a first protective housing 5-44 is provided on the first shaft support 5-41. A first servo motor 5-42 is located inside or on the outer wall of the first protective housing 5-44. The output shaft of the first servo motor 5-42 is connected to a first transmission gear 5-45 located inside the first protective housing 5-44. A second transmission gear 5-46 is sleeved on the first rotating shaft 5-43, also located inside the first protective housing 5-44. The first transmission gear 5-45 and the second transmission gear 5-46 are meshed together. This gear transmission enables the first servo motor 5-42 to drive the first rotating shaft 5-43, ensuring the accuracy and stability of angle adjustment. The first protective housing 5-44 effectively protects the transmission components from external environmental interference, improving the reliability of the device.

[0073] Since the aforementioned bottom plate limiting mechanism 5 and top plate limiting mechanism 7 are located on the outer side of the width direction of the base module, and both the top plate 15-1 and the bottom plate 15-2 have suitable connecting flanges, it is only necessary to arrange several corresponding cylinder structures evenly along the third direction c-c' near the middle position of the length direction of the base module. However, the web plate 15-3 is vertically assembled, and its upper and lower ends are covered by the bottom plate 15-2 and the top plate 15-1 respectively, so it can only be clamped from both ends of the length direction of the web plate 15-3. Therefore, in this embodiment, an eighth cylinder 6-3 is provided on the fixed mounting block 3 and the movable mounting block 4 respectively, as shown in the attached figure. Figure 4 Two eighth cylinders 6-3 are arranged at intervals along the third direction c-c' in each group. The free ends of the two eighth cylinders 6-3 in the same group are arranged opposite each other. The piston rod of the eighth cylinder 6-3 extends along the third direction c-c', and its free end is connected to the sixth cylinder 6-1. By extending and retracting the eighth cylinder 6-3, the position of the sixth cylinder 6-1 and the web clamp 6-2 connected to its free end on the third direction c-c' can be adjusted, thereby meeting the clamping requirements of webs 15-3 of different lengths.

[0074] Furthermore, based on the same design concept, the web clamp 6-2 also adopts an adjustable structure. (See attached reference.) Figure 10The web clamp 6-2 includes a second C-shaped frame 6-21, a second movable clamping plate 6-22, and a seventh cylinder 6-23. The openings of the second C-shaped frames 6-21 on each of the two eighth cylinders 6-3 are opposite to each other, jointly clamping the two side ends of the same web 15-3 along its length. The second movable clamping plate 6-22 and the seventh cylinder 6-23 are both located inside the second C-shaped frame 6-21. The piston rod of the seventh cylinder 6-23 extends along the first direction a-a'. The seventh cylinder 6-23 is connected to one wing plate of the second C-shaped frame 6-21. The second movable clamping plate 6-22 is opposite to the other wing plate of the second C-shaped frame 6-21. By extending and retracting the seventh cylinder 6-23, the second movable clamping plate 6-22 can be driven to move, thereby changing the distance between the second movable clamping plate 6-22 and the opposite wing plate, realizing the clamping or loosening of the web 15-3.

[0075] Considering that the web 15-3 of some steel box girder bridges is not completely vertical in use, but rather has a certain angle of inclination relative to the vertical direction, this inclination is a structural feature of the web 15-3 itself, rather than an inclination formed when the entire steel box girder bridge is installed on the foundation. To improve assembly accuracy and the applicability of the device, this embodiment provides a second angle adjustment component 6-4 at the free end of the sixth cylinder 6-1, as shown in the attached figure. Figure 10-11 The second angle adjustment component 6-4 includes a second shaft support 6-41, a second servo motor 6-42, and a second rotating shaft 6-4. The second rotating shaft 6-4 extends along a third direction c-c' and is rotatably connected to the second shaft support 6-41. The output shaft of the second servo motor 6-42 is drive-connected to the second rotating shaft 6-4. The web clamp 6-2 is fixedly connected to the second rotating shaft 6-4. When the second servo motor 6-42 drives the second rotating shaft 6-4 to rotate, the vertical tilt angle of the web clamp 6-2 can be changed, thereby adapting to the clamping requirements of the web 15-3 under different tilt conditions.

[0076] More specifically, as an optional transmission method, a second protective housing 6-44 is provided on the second shaft support 6-41. The second servo motor 6-42 is located inside or on the outer wall of the second protective housing 6-44. The output shaft of the second servo motor 6-42 is connected to a third transmission gear 6-45 located inside the second protective housing 6-44. A fourth transmission gear 6-46 is sleeved on the second rotating shaft 6-4, also located inside the second protective housing 6-44. The third transmission gear 6-45 and the fourth transmission gear 6-46 are meshed together. This gear transmission enables the second servo motor 6-42 to drive the second rotating shaft 6-4, ensuring the accuracy and stability of angle adjustment. The second protective housing 6-44 effectively protects the transmission components from external environmental interference, improving the reliability of the device.

[0077] The cylinders mentioned above, and the cylinders and the main structural components of the device, can be rigidly fixedly connected using connecting components such as connecting seats, mounting plates, or transition brackets to ensure the stability and load-bearing capacity of the connection structure. The specific structural form of the connecting components can be adaptively designed according to the actual installation space, stress conditions, and assembly process requirements, as long as the connection is reliable, the assembly is convenient, and there is no interference between the moving parts.

[0078] To ensure assembly accuracy, this device is equipped with a corresponding industrial control system. The industrial control system and its corresponding control programs are existing technologies and will not be described in detail here. After proper calibration, the industrial control system can automatically control the coordinated operation of each cylinder and the second servo motor 6-42 according to the preset initial coordinate system and the input product specification parameters. Through coordinate control, it achieves precise positioning and rapid adaptation of the foundation modules 15 for steel box girder bridges of different specifications. As a preferred implementation, position sensors, angle sensors, and other detection elements can be added to provide real-time feedback on the position and angle status of each actuator, forming a closed-loop control to further improve assembly accuracy and operational reliability.

[0079] Compared with the prior art, the beneficial effects of the present invention include at least the following: by setting relatively movable fixed mounting blocks 3 and movable mounting blocks 4, and vertically spaced top plate limiting mechanism 7, web plate limiting mechanism 6, and bottom plate limiting mechanism 5, rapid adaptation of basic modules of different width specifications is achieved; the bottom plate limiting mechanism 5 adopts multiple independently controlled third cylinders 5-1, which can flexibly adjust the support height according to the curvature of the bottom plate 15-2 to achieve contour positioning of the curved bottom plate 15-2; the device does not require the re-manufacturing of tooling for different specifications, significantly improving versatility, shortening the production preparation cycle, reducing costs, and improving production efficiency and assembly accuracy.

[0080] The above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An auxiliary assembly device for a steel box girder bridge, characterized in that, The system includes a base, on which are fixed mounting blocks and movable mounting blocks spaced apart along a first direction. The movable mounting blocks are movably connected to the base via a first cylinder, the piston rod of which extends along the first direction. The fixed mounting blocks and the movable mounting blocks are respectively provided with a bottom plate limiting mechanism, a web plate limiting mechanism, and a top plate limiting mechanism spaced apart along a second direction. The bottom plate limiting mechanism includes a plurality of third cylinders spaced apart along a third direction, the piston rods of each third cylinder extending along the second direction with their free ends connected to a bottom plate clamp. The web plate limiting mechanism includes a sixth cylinder, the piston rod of which extends along the first direction with its free end connected to the web plate clamp. The top plate limiting mechanism includes a ninth cylinder, the piston rod of which extends along the second direction with its free end in non-contact engagement with the base. The first direction, the second direction, and the third direction are all orthogonal to each other.

2. The auxiliary assembly device for steel box girder bridge according to claim 1, characterized in that, The base includes at least a first base plate and a plurality of second cylinders, at least some of the second cylinders being spaced apart along the third direction, and the piston rod of each second cylinder extending along the second direction with its free end connected to the first base plate.

3. The auxiliary assembly device for steel box girder bridges according to claim 1 or 2, characterized in that, The base is provided with a slide groove extending in the same direction as the first cylinder, and a slider is provided in the slide groove. The end of the slider that extends out of the slide groove is connected to the movable mounting block.

4. The auxiliary assembly device for steel box girder bridge according to claim 3, characterized in that, The base is provided with a limiting sleeve extending along the first direction, and a limiting slide rod is inserted through the limiting sleeve; one end of the limiting slide rod is fixedly connected to a movable mounting block, and the other end is movably connected to the limiting sleeve; the auxiliary assembly device includes a locking member, the limiting sleeve is provided with a plurality of first pin holes spaced apart along the first direction, the limiting slide rod is provided with a plurality of second pin holes spaced apart along the first direction, and the locking member is selectively inserted into the first pin hole and the corresponding second pin hole.

5. The auxiliary assembly device for steel box girder bridge according to claim 1, characterized in that, The fixed mounting block and the movable mounting block are each provided with a fourth cylinder, and the piston rod of the fourth cylinder extends along the first direction and its free end is connected to the third cylinder.

6. The auxiliary assembly device for steel box girder bridge according to claim 1, characterized in that, The free end of the third cylinder is provided with a first angle adjustment component, which includes a first shaft support, a first servo motor, and a first rotating shaft. The first rotating shaft extends along the first direction and is rotatably connected to the first shaft support. The output shaft of the first servo motor is drivenly connected to the first rotating shaft. The base plate clamp is fixedly connected to the first rotating shaft. A first protective box is provided on the first shaft support. The output shaft of the first servo motor is connected to a first transmission gear located inside the first protective box. A second transmission gear is sleeved on the first rotating shaft. The first transmission gear and the second transmission gear are meshed together.

7. The auxiliary assembly device for a steel box girder bridge according to claim 1, characterized in that, The fixed mounting base and the movable mounting base are each provided with an eighth cylinder, and the piston rod of the eighth cylinder extends along the third direction and its free end is connected to the sixth cylinder.

8. The auxiliary assembly device for a steel box girder bridge according to claim 7, characterized in that, The free end of the sixth cylinder is provided with a second angle adjustment assembly, which includes a second shaft support, a second servo motor, and a second rotating shaft. The second rotating shaft extends along the third direction and is rotatably connected to the second shaft support. The output shaft of the second servo motor is drivenly connected to the second rotating shaft. The web plate clamp is fixedly connected to the second rotating shaft. A second protective box is provided on the second shaft support. The output shaft of the second servo motor is connected to a third transmission gear located in the second protective box. A fourth transmission gear is sleeved on the second rotating shaft. The third transmission gear and the fourth transmission gear are meshed together.

9. The auxiliary assembly device for a steel box girder bridge according to claim 1, characterized in that, The base plate clamp includes a first C-shaped frame, a first movable clamping plate, and a fifth cylinder, wherein the piston rod of the fifth cylinder extends along the second direction; the first movable clamping plate is disposed inside the first C-shaped frame and is connected to a wing plate of the first C-shaped frame through the fifth cylinder; The web clamp includes a second C-shaped frame, a second movable clamping plate, and a seventh cylinder. The piston rod of the seventh cylinder extends along the first direction. The second movable clamping plate is located inside the second C-shaped frame and is connected to a wing plate of the second C-shaped frame through the seventh cylinder.

10. A method of using the auxiliary assembly device for a steel box girder bridge according to any one of claims 1-9, characterized in that, Including the following steps: The top plate is placed on the base, and the movable mounting block is driven by the first cylinder so that the fixed mounting block and the movable mounting block abut against the opposite sides of the top plate; the top plate is pressed by the ninth cylinder. The web plate is placed in the web plate clamp, and the sixth cylinder drives the web plate to move along the first direction to the designed position. The top plate is placed in the top plate clamp, and the sixth cylinder drives the top plate clamp to lift and lower until the top plate is in the designed position. The assembly operation of the steel box girder bridge was carried out.

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