A bridge H-beam composite truss beam assembly device and its application method

Abstract

This invention discloses an assembly device for H-beam composite truss beams used in bridges and its method of use. The assembly device includes a bottom adjustment mechanism, a steering mechanism, a middle adjustment mechanism, and a top adjustment mechanism. The steering mechanism is connected to one side of the bottom adjustment mechanism, and the top adjustment mechanism is connected to the bottom adjustment mechanism through the middle adjustment mechanism. The top adjustment mechanism supports the H-beam composite truss beam. The method includes: moving the assembly device, adjusting the bottom adjustment mechanism, adjusting the middle adjustment mechanism, adjusting the top adjustment mechanism, and driving the assembly device away. This invention allows for vertical, horizontal, and forward / backward position adjustments during truss beam connection, improving the flexibility and reliability of the assembly device. It is easy and simple to operate, and allows for fine-tuning in case of deviations, ensuring construction progress.

Description

Technical Field

[0001] This invention relates to an assembly device for H-beam composite truss beams used in bridges and its method of use. Background Technology

[0002] Steel, with its advantages of high strength, good plasticity, light weight, short construction period, and ease of maintenance, is widely used in engineering construction. In bridge construction, steel truss bridges utilize a large amount of steel. The main bridge consists of two independent steel truss bridges. High-strength bolts are used to connect the upper and lower chord joints, upper horizontal connectors, and the joints between the small longitudinal beams and crossbeams of the main bridge steel truss. The connection between the crossbeams and the lower chord uses a hybrid bolted and welded connection; the web plate connection is bolted, while the top and bottom plate connection is welded. Because the bolt holes are very small, accurate alignment is difficult. Traditional methods involve pre-treating the truss and box girder with small welded components, removing these after assembly. However, this traditional method cannot be used for positional adjustments; any deviation necessitates repetition, affecting construction progress and potentially damaging the overall structure. Summary of the Invention

[0003] The purpose of this invention is to provide a technical solution for assembling a composite truss beam for bridges and its usage method, addressing the shortcomings of existing technologies. This solution allows for vertical, horizontal, and front-back position adjustments during truss beam connection, improving the flexibility and reliability of the assembly device. It is easy and simple to operate, and can make fine adjustments when deviations occur, ensuring the progress of construction.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A bridge H-beam composite truss beam assembly device is characterized in that: the assembly device includes a bottom adjustment mechanism, a steering mechanism, a middle adjustment mechanism, and a top adjustment mechanism. The steering mechanism is connected to one side of the bottom adjustment mechanism, and the top adjustment mechanism is connected to the bottom adjustment mechanism through the middle adjustment mechanism. The top adjustment mechanism is used to support the H-beam composite truss beam. Through the design of the above structure, the vertical, horizontal, and front-back positions can be adjusted during the connection of the truss beams, improving the flexibility and reliability of the assembly device. It is easy and simple to operate, and can be fine-tuned when deviations occur, ensuring the progress of construction.

[0006] Furthermore, the bottom adjustment mechanism includes a housing assembly, a first support frame, a second support frame, and a worm gear lifting assembly. The first and second support frames are located on the same side of the housing assembly, with the first support frame positioned below the second support frame. The bottom of the first support frame is equipped with a track and a drive motor for driving the track. The worm gear lifting assembly is mounted on the second support frame and the housing assembly. The first support frame improves the stability and reliability of the track installation, ensuring the movement of the assembly device. The second support frame and the housing assembly improve the assembly precision of the worm gear lifting assembly, ensuring its stable operation. The worm gear lifting assembly can adjust the height positions of the middle adjustment mechanism and the top adjustment mechanism.

[0007] Furthermore, a housing is provided between two adjacent first support frames, and a controller and a battery pack are installed inside the housing. The controller can be a PLC controller, which is used to control the operation of the entire assembly device, and the battery is used for power supply.

[0008] Furthermore, the worm gear lifting assembly includes a worm, a first hand-cranked turntable, a worm gear, a first screw, a limit pin, and a lifting support platform. The first hand-cranked turntable is connected to the worm, which is located between two second support frames. The first screw is connected to the housing assembly, and the worm gear is threadedly connected to the first screw. The worm gear and worm mesh with each other. The lifting support platform is located at the top of the first screw. The first screw has a limit groove, and the limit pin matches the limit groove. The first hand-cranked turntable can drive the worm to rotate, which in turn drives the worm gear to rotate. Since the worm gear and the first screw are connected by a thread, when the limit pin is engaged in the limit groove, the first screw cannot rotate synchronously, thus allowing it to move vertically and adjust the height of the lifting support platform.

[0009] Furthermore, the housing assembly includes a first housing, a second housing, and a third housing. The second housing is located between the first housing and the third housing. The first housing has a positioning hole, a groove, and a through hole. The groove and the through hole are connected to the positioning hole. The first screw matches the positioning hole, the worm gear matches the groove, and the limiting pin matches the through hole. The second housing has an arc-shaped groove that matches the worm gear. The third housing has a limiting hole in which a positioning sleeve is installed. The positioning sleeve matches the first screw. The first screw can rotate or move up and down along the positioning hole. The limiting groove can move along the through hole. The worm gear is limited in the groove. The upper positioning sleeve can prevent the worm gear from moving up and down while rotating.

[0010] Furthermore, the steering mechanism includes a support plate, a steering block, a direction adjustment roller, a steering motor, a fixed gear, a rotating gear, a first pulley, and a second pulley. Two support plates are mounted on the bottom adjustment mechanism, and a fixed shaft is fixedly connected between the two support plates. A fixed gear is fixedly connected to the fixed shaft. The steering block is rotatably connected to the fixed shaft, and a steering motor is mounted on the steering block. The rotating gear, the first pulley, and the second pulley are all located within the steering block. The output shaft of the steering motor is connected to the first pulley, which is connected to the second pulley via a belt. The second pulley is connected to the rotating gear, which meshes with the fixed gear. The direction adjustment roller is rotatably connected to both sides of the steering block. The steering motor drives the first pulley to rotate, which in turn drives the second pulley to rotate via the belt, causing the rotating gear connected to the second pulley to rotate. Since the fixed gear and fixed shaft are fixedly connected to the support plates, the rotating gear can rotate around the fixed gear, causing the rotating block to rotate between the two support plates. This allows the direction adjustment roller to rotate along with the rotating block, adjusting the direction of the assembly device.

[0011] Furthermore, the central adjustment mechanism includes a first fixed plate, a first moving platform, a first slide rail, a second screw, and a second hand-cranked turntable. The second screw is connected to the first fixed plate via a fixed block, and the second hand-cranked turntable is connected to the end of the second screw. Two first slide rails are parallel to each other on the first fixed plate and symmetrically distributed on both sides of the second screw. The first moving platform has a second threaded hole that matches the second screw. The first moving platform also has a first T-slot that matches the first slide rail. The first T-slot has a first retaining groove, and symmetrical mounting holes are provided in the retaining groove. A first roller assembly is connected to the mounting holes and is supported on the first slide rail. By rotating the second hand-cranked turntable, the second screw is rotated, which in turn moves the first moving platform horizontally along the first slide rail. The fixed block improves the stability and reliability of the second screw installation, thereby improving the stability of the second screw rotation. The first roller assembly reduces the friction of the first moving platform when it moves along the first slide rail, reducing wear.

[0012] Furthermore, the top adjustment mechanism includes a second fixed plate, a second moving platform, an adjustment component, a second slide rail, and a U-shaped plate. Two second slide rails are arranged parallel to each other on the second fixed plate. The second moving platform is movably connected to the second slide rails through the adjustment component. The U-shaped plate is located on the second moving platform and is equipped with tightening bolts. The adjustment component can drive the second moving platform to move along the second slide rails, thereby driving the U-shaped plate to move, thus meeting the adjustment requirements of the top adjustment mechanism. The tightening bolts can fix the U-shaped plate to the truss beam.

[0013] Furthermore, the adjustment assembly includes an adjustment rod, a third screw, a bevel gear set, and a moving block. The second fixed plate has a support bar, a limiting bar, and a bevel gear set housing. The limiting bar and the bevel gear set housing are located between two support bars. The support bars have shaft holes through which the adjustment rod passes to connect to the bevel gear set housing. A third screw is located between the end of the limiting bar and the bevel gear set housing, and the third screw connects to the adjustment rod via the bevel gear set. The bottom of the second moving platform has a moving block and a connecting block, with the connecting block located between two moving blocks. The moving block is connected to the third screw. A limiting block is located on the bottom surface of the moving block. The second fixed plate has a sliding groove, and the limiting block matches the sliding groove. The bottom surface of the second moving platform has a second T-shaped groove, which matches the second slide rail. The second T-shaped groove has a second slot, and a second roller set is located within the second slot. The second roller set is supported by the second slide rail. On the rail, the adjusting rod drives the bevel gear set to rotate, which in turn drives the third screw to rotate, causing the moving block to move the second moving platform. The bevel gear set housing protects the bevel gear set and prevents slippage that could affect the normal operation of the second moving platform. The connecting block improves the connection strength and stability between the two moving blocks. The slide groove and limit block ensure that the second moving platform moves horizontally and prevents lateral movement. The second slide rail and the second T-slot also serve as limiters, improving the stability and reliability of the second moving platform during operation. The second roller set is supported on the top of the second slide rail, reducing the friction during the movement of the second moving platform. The limit strip is suspended and does not contact the second moving platform. At the same time, the two limit strips not only improve the stability of the third screw but also limit the connecting block, ensuring the horizontal movement of the second moving platform.

[0014] The method of using the above-mentioned bridge H-beam composite truss beam assembly device is characterized by the following steps:

[0015] 1) First, move the assembly device to the installation node position, and then perform the installation operation simultaneously using two assembly devices;

[0016] 2) The assembly device is moved back and forth and its direction is adjusted by using tracks and directional adjustment rollers to move the truss beam to the welding position and then make fine adjustments.

[0017] 3) After the assembly device is moved to the welding position, adjust the bottom adjustment mechanism, insert the limiting pin into the limiting groove of the first screw, rotate the first hand crank, so that the worm drives the worm wheel to rotate. The first screw is built into the worm wheel. The rotation of the worm wheel drives the first screw to rotate synchronously. Since the limiting pin is inserted into the limiting groove, the first screw cannot rotate synchronously with the worm wheel. The first screw and the worm wheel are connected by a thread, so that the first screw can move up and down to adjust the height position of the truss beam.

[0018] 4) After the bottom adjustment mechanism is adjusted, the middle adjustment mechanism is adjusted. The second hand crank is turned to make the second screw rotate, which drives the first moving platform to move along the first slide rail and adjusts the position of the first moving platform.

[0019] 5) After the middle adjustment mechanism is adjusted, the top adjustment mechanism is adjusted. Rotate the adjustment rod to drive the third screw to rotate through the helical gear set, so that the moving block drives the second moving platform to move along the second slide rail and adjust the position of the second moving platform.

[0020] 6) After adjustment, the height is lowered by the bottom adjustment mechanism, and the assembly device is driven away from under the truss beam by the tracks and directional adjustment rollers.

[0021] This method of use is simple and not only improves the stability and reliability of the assembly device when it is moved, but also allows for fine-tuning according to the position of the truss beam, making it flexible and convenient to use.

[0022] The present invention, by adopting the above-described technical solution, has the following beneficial effects:

[0023] 1. The position can be adjusted up and down, left and right, and front and back during truss beam connection, which improves the flexibility and reliability of the assembly device. It is easy and simple to operate, and can make fine adjustments when deviations occur to ensure the progress of construction.

[0024] 2. The first support frame improves the stability and reliability of track installation and ensures the movement of the assembly device. The second support frame and the housing assembly improve the assembly accuracy of the worm gear lifting assembly and ensure the stable operation of the worm gear lifting assembly. The worm gear lifting assembly can adjust the height position of the middle adjustment mechanism and the top adjustment mechanism.

[0025] 3. The first hand crank can drive the worm gear to rotate, which in turn drives the worm wheel to rotate. Since the worm wheel and the first screw are connected by a thread, when the limit pin is engaged in the limit groove, the first screw cannot rotate synchronously, and can then move vertically to adjust the height of the lifting support platform.

[0026] 4. By rotating the second hand crank, the second screw is driven to rotate, which in turn drives the first moving platform to move horizontally along the first slide rail. The fixing block improves the stability and reliability of the second screw installation, thereby improving the stability of the second screw rotation. The first roller assembly can reduce the friction force when the first moving platform moves along the first slide rail, reducing wear.

[0027] 5. The adjustment component can drive the second moving platform to move along the second slide rail, thereby driving the U-shaped plate to move, which meets the adjustment requirements of the top adjustment mechanism. Tightening the bolts can fix the U-shaped plate to the truss beam.

[0028] 6. The method of use is simple and not only improves the stability and reliability of the assembly device when it is moved, but also allows for fine-tuning according to the position of the truss beam, making it flexible and convenient to use. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings:

[0030] Figure 1 This is a schematic diagram illustrating the operation of the assembly device in the bridge H-beam composite truss beam assembly device and its usage method according to the present invention.

[0031] Figure 2 This is a rendering of the assembly device in this invention;

[0032] Figure 3 This is a schematic diagram showing the connection between the bottom adjustment mechanism and the steering mechanism in this invention;

[0033] Figure 4 This is a schematic diagram of the connection of the worm gear lifting assembly in this invention;

[0034] Figure 5 This is a rendering of the first housing in this invention;

[0035] Figure 6 This is a rendering of the second housing in this invention;

[0036] Figure 7 This is a rendering of the central adjustment mechanism in this invention;

[0037] Figure 8 This is a rendering of the first mobile platform in this invention;

[0038] Figure 9 This is a rendering of the top adjustment mechanism in this invention;

[0039] Figure 10 This is a rendering of the second fixing plate in this invention;

[0040] Figure 11 This is a schematic diagram showing the connection between the second mobile platform and the third screw in this invention;

[0041] Figure 12 This is a schematic diagram showing the connection between the fixed gear, the rotating gear, the first pulley, and the second pulley in this invention.

[0042] In the diagram: 1-Assembly device; 2-Bottom adjustment mechanism; 3-Steering mechanism; 4-Middle adjustment mechanism; 5-Top adjustment mechanism; 6-First housing; 7-Second housing; 8-Third housing; 9-First support frame; 10-Second support frame; 11-Track; 12-Box; 13-Worm gear; 14-First hand crank turntable; 15-Limit pin; 16-Support plate; 17-Fixed shaft; 18-Steering block; 19-Steering motor; 20-Direction adjustment roller; 21-Limit hole; 22-Handle; 23-Lifting support platform; 24-First screw; 25-Positioning sleeve; 26-Limit groove; 28-Worm gear; 29-First threaded hole; 30-Positioning hole; 31-Groove; 32-Through hole; 33-Arc groove; 34-First fixed plate; 35-First moving platform; 3 6-Fixing block; 37-Second screw; 38-Second hand-cranked turntable; 39-First slide rail; 40-First roller assembly; 41-First T-slot; 42-First slot; 43-Mounting hole; 44-Second threaded hole; 45-Second fixing plate; 46-Second moving platform; 47-U-shaped plate; 48-Second slide rail; 49-Adjusting rod; 50-Bevel gear set housing; 51-Bevel gear set; 52-Tightening bolt; 53-Support bar; 54-Slide groove; 55-Shaft hole; 56-Third screw; 57-Limiting bar; 58-Moving block; 59-Limiting block; 60-Connecting block; 61-Second T-slot; 62-Second slot; 63-Second roller assembly; 64-Fixing gear; 65-Rotating gear; 66-Second pulley; 67-First pulley; 68-Belt. Detailed Implementation

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0045] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0046] like Figures 1 to 12As shown, this invention provides an assembly device for H-beam composite truss beams used in bridges. The assembly device 1 includes a bottom adjustment mechanism 2, a steering mechanism 3, a middle adjustment mechanism 4, and a top adjustment mechanism 5. The bottom adjustment mechanism 2 includes a housing assembly, a first support frame 9, a second support frame 10, and a worm gear lifting assembly. The first support frame 9 and the second support frame 10 are located on the same side of the housing assembly, with the first support frame 9 positioned below the second support frame 10. The two first support frames 9 and the two second support frames 10 are symmetrically arranged. The bottom of the first support frame 9 is provided with a track 11 and a drive motor for driving the track 11. The drive motor is electrically connected to a controller.

[0047] A housing 12 is provided between two adjacent first support frames 9. The housing 12 houses a controller and a battery pack. The controller, which can be a PLC controller, is used to control the operation of the entire assembly device 1. A communication module can also be installed inside the housing 12; this module can be one of Bluetooth, Zigbee, WiFi, 4G, or 5G communication modules. The battery provides power. A switch can also be installed on the housing to turn the assembly device on or off.

[0048] The worm gear lifting assembly is mounted on the second support frame 10 and the housing assembly. The first support frame 9 improves the stability and reliability of the track 11 installation and ensures the movement of the assembly device 1. The second support frame 10 and the housing assembly improve the assembly accuracy of the worm gear lifting assembly and ensure the stable operation of the worm gear lifting assembly. The worm gear lifting assembly can adjust the height position of the middle adjustment mechanism and the top adjustment mechanism.

[0049] The worm gear lifting assembly includes a worm 13, a first hand-cranked turntable 14, a worm gear 28, a first screw 24, a limit pin 15, and a lifting support platform 23. The first hand-cranked turntable 14 is connected to the worm 13, which is located between two second support frames 10. The first screw 24 is connected to the housing assembly and moves up and down along the housing assembly. The worm gear 28 is threadedly connected to the first screw 24, and the worm gear 28 meshes with the worm 13. The lifting support platform 23 is located at the top of the first screw 24. The first screw 24 has a limiting groove 26, and the limiting pin 15 matches the limiting groove 26. The first hand crank 14 can drive the worm 13 to rotate, which in turn drives the worm gear 28 to rotate. Since the worm gear 28 and the first screw 24 are threadedly connected, the worm gear 28 has a first threaded hole 29, which meshes with the first screw 24. When the limiting pin 15 is engaged in the limiting groove 26, the first screw 24 cannot rotate synchronously, and can thus move vertically to adjust the height of the lifting support platform 23. A handle 22 is provided on the outside of the limiting pin 15 to facilitate the adjustment of the limiting pin's movement.

[0050] The housing assembly includes a first housing 6, a second housing 7, and a third housing 8. The second housing 7 is located between the first housing 6 and the third housing 8. The first housing 6 has a positioning hole 30, a groove 31, and a through hole 32. The groove 31 and the through hole 32 are connected to the positioning hole 30. The first screw 24 matches the positioning hole 30, the worm gear 28 matches the groove 31, and the limiting pin 15 matches the through hole 32. The second housing 7 has an arc-shaped groove 33, which matches the worm gear 28. The third housing 8 has a limiting hole 21, in which a positioning sleeve 25 is installed. The positioning sleeve 25 matches the first screw 24. The first screw 24 rotates or moves up and down along the positioning hole 30. The limiting groove 26 can move along the through hole 32. The worm gear 28 is limited in the groove 31. With the upper positioning sleeve 25, the worm gear 28 can be prevented from moving up and down while rotating.

[0051] Steering mechanism 3 is connected to one side of bottom adjustment mechanism 2. Steering mechanism 3 includes support plate 16, steering block 18, direction adjustment roller 20, steering motor 19, fixed gear 64, rotating gear 65, first pulley 67, and second pulley 66. Two support plates 16 are mounted on bottom adjustment mechanism 2 and are arranged parallel to each other vertically. A fixed shaft 17 is fixedly connected between the two support plates. A fixed gear 64 is fixedly connected to the fixed shaft 17. Steering block 18 is rotatably connected to fixed shaft 17. Steering motor 19 is mounted on steering block 18. Rotating gear 65, first pulley 67, and second pulley 66 are all located inside steering block 18. The output shaft of steering motor 19 is connected to first pulley 67. A pulley 67 is connected to a second pulley 66 via a belt 68. The second pulley 66 is connected to a rotating gear 65, which meshes with a fixed gear 64. A direction adjustment roller 20 is rotatably connected to both sides of the steering block 18. The steering motor 19 drives the first pulley 67 to rotate, which in turn drives the second pulley 66 to rotate via the belt 68. This causes the rotating gear 65 connected to the second pulley 66 to rotate. Since the fixed gear 64 and the fixed shaft 17 are fixedly connected to the support plate, the rotating gear 65 can rotate around the fixed gear 64, causing the rotating block to rotate between the two support plates. This allows the direction adjustment roller 20 to rotate with the rotating block, adjusting the direction of the assembly device 1.

[0052] The central adjustment mechanism 4 includes a first fixed plate 34, a first moving platform 35, a first slide rail 39, a second screw 37, and a second hand-cranked turntable 38. The second screw 37 is connected to the first fixed plate 34 via two fixed blocks 36. The second hand-cranked turntable 38 is connected to the end of the second screw 37. The two first slide rails 39 are parallel to each other on the first fixed plate 34 and symmetrically distributed on both sides of the second screw 37. The first moving platform 35 is provided with a second threaded hole 44, which matches the second screw 37. The first moving platform 35 is provided with a first T-slot 41, which is connected to the first slide rail 39. Matching the first T-shaped groove 41, a first slot 42 is provided, and mounting holes 43 are symmetrically provided in the first slot 42. A first roller assembly 40 is connected to the mounting holes 43. The first roller assembly 40 is supported on the first slide rail 39. By rotating the second hand crank turntable 38, the second screw 37 is driven to rotate, which in turn drives the first moving platform 35 to move horizontally along the first slide rail 39. The fixing block 36 improves the stability and reliability of the installation of the second screw 37, thereby improving the stability of the rotation of the second screw 37. The first roller assembly 40 can reduce the friction when the first moving platform 35 moves along the first slide rail 39, reducing wear.

[0053] The top adjustment mechanism 5 is connected to the bottom adjustment mechanism 2 through the middle adjustment mechanism 4. The top adjustment mechanism 5 is used to support the H-shaped steel composite truss beam. Through the design of the above structure, the position can be adjusted up and down, left and right, and front and back when the truss beam is connected, which improves the flexibility and reliability of the assembly device 1. It is easy and simple to operate, and can make fine adjustments when deviation occurs to ensure the progress of construction.

[0054] The top adjustment mechanism 5 includes a second fixed plate 45, a second moving platform 46, an adjustment component, a second slide rail 48, and a U-shaped plate 47. The two second slide rails 48 are arranged parallel to each other on the second fixed plate 45. The second moving platform 46 is movably connected to the second slide rails 48 through the adjustment component. The U-shaped plate 47 is arranged on the second moving platform 46 and is provided with a tightening bolt 52. The adjustment component can drive the second moving platform 46 to move along the second slide rails 48, thereby driving the U-shaped plate 47 to move, thus meeting the adjustment requirements of the top adjustment mechanism 5. The tightening bolt 52 can fix the U-shaped plate 47 to the truss beam.

[0055] The adjustment assembly includes an adjustment rod 49, a third screw 56, a bevel gear set 51, and a moving block 58. A support bar 53, a limiting bar 57, and a bevel gear set housing 50 are provided on the second fixed plate 45. The limiting bar 57 and the bevel gear set housing 50 are located between two support bars 53. A shaft hole 55 is provided on the support bar 53, through which the adjustment rod 49 passes to connect to the bevel gear set housing 50. A third screw 56 is provided between the end of the limiting bar 57 and the bevel gear set housing 50. The third screw 56 is connected to the adjustment rod 49 via the bevel gear set 51. The bottom of the second moving platform 46 is provided with a moving block 58 and a connecting block 60. The connecting block 60 is located between the two moving blocks 58. The moving blocks 58 are connected to the third screw 56. A limiting block 59 is provided on the bottom surface of the moving block 58. A sliding groove 54 is provided on the second fixed plate 45. The limiting block 59 matches the sliding groove 54. A second T-shaped groove 61 is provided on the bottom surface of the second moving platform 46. The second T-shaped groove 61 matches the second slide rail 48. A second slot 62 is provided on the second T-shaped groove 61. A second roller assembly is provided in the second slot 62. 63. The second roller assembly 63 is supported on the second slide rail 48. The adjusting rod 49 drives the bevel gear assembly 51 to rotate, which in turn drives the third screw 56 to rotate, causing the moving block 58 to move the second moving platform 46. The bevel gear assembly housing 50 can protect the bevel gear assembly 51 to prevent slippage that could affect the normal operation of the second moving platform 46. The connecting block 60 improves the connection strength and stability between the two moving blocks 58. The slide groove 54 and the limiting block 59 can ensure that the second moving platform 46 moves horizontally and prevent lateral movement. The second slide rail 48 and the second T-slot 61 can also play a limiting role, improving the stability and reliability of the second moving platform 46 during operation. The second roller assembly 63 is supported on the top of the second slide rail 48 to reduce the friction when the second moving platform 46 moves. The limiting strip 57 is suspended and does not contact the second moving platform 46. At the same time, the two limiting strips 57 not only improve the stability of the third screw 56 but also limit the connecting block 60 to ensure the horizontal movement of the second moving platform 46.

[0056] The above-mentioned method for using an H-beam composite truss beam assembly device for bridges includes the following steps:

[0057] 1) First, move the assembly device 1 to the installation node position, and then perform the installation operation simultaneously using two assembly devices 1;

[0058] 2) The assembly device 1 moves back and forth and adjusts its direction by means of the track 11 and the direction adjustment roller 20, so that the truss beam can be moved to the welding position and then fine-tuned.

[0059] 3) After the assembly device 1 is moved to the welding position, the bottom adjustment mechanism 2 is adjusted. The limiting pin 15 is inserted into the limiting groove 26 of the first screw 24. The first hand crank 14 is rotated to make the worm gear 13 drive the worm wheel 28 to rotate. The first screw 24 is built into the worm wheel 28. The rotation of the worm wheel 28 drives the first screw 24 to rotate synchronously. Since the limiting pin 15 is inserted into the limiting groove 26, the first screw 24 cannot rotate synchronously with the worm wheel 28. The first screw 24 and the worm wheel 28 are connected by threads, so that the first screw 24 can move up and down to adjust the height position of the truss beam.

[0060] 4) After the bottom adjustment mechanism 2 is adjusted, the middle adjustment mechanism 4 is adjusted. The second hand crank 38 is rotated to make the second screw 37 rotate, which drives the first moving platform 35 to move along the first slide rail 39 and adjusts the position of the first moving platform 35.

[0061] 5) After the middle adjustment mechanism 4 is adjusted, the top adjustment mechanism 5 is adjusted. Rotate the adjustment rod 49, and drive the third screw 56 to rotate through the helical gear set, so that the moving block 58 drives the second moving platform 46 to move along the second slide rail 48, and adjust the position of the second moving platform 46.

[0062] 6) After the adjustment is completed, the height is lowered by the bottom adjustment mechanism 2, and the assembly device 1 is driven away from under the truss beam by the track 11 and the directional adjustment roller 20.

[0063] The method of use is simple and not only improves the stability and reliability of the assembly device 1 when it is moved, but also allows for fine-tuning according to the position of the truss beam, making it flexible and convenient to use.

[0064] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to achieve substantially the same technical effect are all covered within the protection scope of the present invention.

Claims

1. A bridge H-beam composite truss beam assembly device, characterized in that: The assembly device includes a bottom adjustment mechanism, a steering mechanism, a middle adjustment mechanism, and a top adjustment mechanism. The steering mechanism is connected to one side of the bottom adjustment mechanism, and the top adjustment mechanism is connected to the bottom adjustment mechanism through the middle adjustment mechanism. The top adjustment mechanism is used to support the H-shaped steel composite truss beam. The steering mechanism includes a support plate, a steering block, a direction adjustment roller, a steering motor, a fixed gear, a rotating gear, a first pulley, and a second pulley. Two support plates are mounted on the bottom adjustment mechanism, and a fixed shaft is fixedly connected between the two support plates. The fixed gear is fixedly connected to the fixed shaft, and the steering block is rotatably connected to the bottom adjustment mechanism. On the fixed shaft, a steering motor is provided on the steering block. The rotating gear, the first pulley, and the second pulley are all located inside the steering block. The output shaft of the steering motor is connected to the first pulley. The first pulley is connected to the second pulley via a belt. The second pulley is connected to the rotating gear. The rotating gear meshes with the fixed gear. The direction adjustment rollers are rotatably connected to both sides of the steering block. The central adjustment mechanism includes a first fixed plate, a first moving platform, a first slide rail, a second screw, and a second hand-cranked turntable. The second screw is connected to the first fixed plate via a fixed block, and the second hand-cranked turntable is connected to... At the end of the second screw, two first slide rails are parallel to each other on the first fixed plate and symmetrically distributed on both sides of the second screw. The first moving platform has a second threaded hole that matches the second screw. The first moving platform also has a first T-slot that matches the first slide rail. The first T-slot has a first retaining groove, and symmetrical mounting holes are provided within the first retaining groove. A first roller assembly is connected to the mounting holes and supported on the first slide rail. The top adjustment mechanism includes a second fixed plate, a second moving platform, an adjustment assembly, a second slide rail, and a U-shaped plate. The second slide rail is parallel to the second fixed plate, and the second moving platform is movably connected to the second slide rail through the adjustment assembly. The U-shaped plate is disposed on the second moving platform, and the U-shaped plate is provided with tightening bolts. The bottom adjustment mechanism includes a housing assembly, a first support frame, a second support frame, and a worm gear lifting assembly. The first support frame and the second support frame are disposed on the same side of the housing assembly. The first support frame is disposed below the second support frame. The bottom of the first support frame is provided with a track and a drive motor for driving the track to move. The worm gear lifting assembly is disposed on the second support frame and the housing assembly.The worm gear lifting assembly includes a worm, a first hand-cranked turntable, a worm gear, a first screw, a limiting pin, and a lifting support platform. The first hand-cranked turntable is connected to the worm, which is positioned between two second support frames. The first screw is connected to the housing assembly. The worm gear is threaded onto the first screw, and the worm gear meshes with the worm. The lifting support platform is located at the top of the first screw, which has a limiting groove. The limiting pin matches the limiting groove.

2. The bridge H-beam composite truss beam assembly device according to claim 1, characterized in that: A housing is provided between two adjacent first support frames, and a controller and a battery pack are provided inside the housing.

3. The bridge H-beam composite truss beam assembly device according to claim 1, characterized in that: The housing assembly includes a first housing, a second housing, and a third housing. The second housing is disposed between the first housing and the third housing. The first housing has a positioning hole, a groove, and a through hole. The groove and the through hole are both connected to the positioning hole. The first screw matches the positioning hole, the worm gear matches the groove, and the limiting pin matches the through hole. The second housing has an arc-shaped groove that matches the worm gear. The third housing has a limiting hole in which a positioning sleeve is installed. The positioning sleeve matches the first screw.

4. The bridge H-beam composite truss beam assembly device according to claim 1, characterized in that: The adjustment assembly includes an adjustment rod, a third screw, a bevel gear set, and a moving block. The second fixed plate has a support bar, a limiting bar, and a bevel gear set housing. The limiting bar and the bevel gear set housing are located between two support bars. Each support bar has a shaft hole through which the adjustment rod passes and connects to the bevel gear set housing. The third screw is located between the end of the limiting bar and the bevel gear set housing, and is connected to the adjustment rod via the bevel gear set. The bottom of the second moving platform has a moving block and a connecting block. The connecting block is located between two moving blocks, and the moving block is connected to the third screw. A limiting block is located on the bottom surface of the moving block. The second fixed plate has a sliding groove, and the limiting block matches the sliding groove. The bottom surface of the second moving platform has a second T-shaped groove, which matches the second slide rail. The second T-shaped groove has a second slot, and a second roller set is located within the second slot, supported on the second slide rail.

5. The method of using the bridge H-beam composite truss beam assembly device according to any one of claims 1 to 4, characterized in that... Includes the following steps: 1) First, move the assembly device to the installation node position, and then perform the installation operation simultaneously using two assembly devices; 2) The assembly device moves back and forth and adjusts its direction by using tracks and directional adjustment rollers to move the truss beam to the welding position and then make fine adjustments. 3) After the assembly device is moved to the welding position, adjust the bottom adjustment mechanism, insert the limit pin into the limit groove of the first screw, rotate the first hand crank, so that the worm drives the worm wheel to rotate. The first screw is built into the worm wheel, and the first screw and the worm wheel are connected by a thread, so that the first screw can move up and down to adjust the height position of the truss beam. 4) After the bottom adjustment mechanism is adjusted, the middle adjustment mechanism is adjusted. The second hand crank is turned to rotate the second screw, which drives the first moving platform to move along the first slide rail and adjusts the position of the first moving platform. 5) After the middle adjustment mechanism is adjusted, the top adjustment mechanism is adjusted. Rotate the adjustment rod to drive the third screw to rotate through the helical gear set, so that the moving block drives the second moving platform to move along the second slide rail and adjust the position of the second moving platform. 6) After adjustment, the height is lowered by the bottom adjustment mechanism, and the assembly device is driven away from under the truss beam by the tracks and directional adjustment rollers.

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