Butt joint device for large-span simply-supported steel truss girder
By automatically adjusting the positions of the guide beam and the slide beam using laser positioning and adjustment components, the problem of low accuracy and efficiency in the docking of the guide beam and the slide beam is solved, achieving a high-precision and high-efficiency docking process.
Patent Information
- Application Number
- CN202520555643.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-27
AI Technical Summary
In existing technologies, the precision of the docking process between the guide beam and the slide beam depends on manual control, which results in large errors, high construction difficulty, and low efficiency.
Using laser positioning components and adjustment modules, the positional deviation between the guide beam and the slide beam is adjusted by laser positioning, and the slide beam is moved within the limit ring by the pushing component, so as to achieve automated docking and reduce the difficulty of manual operation.
It improves the accuracy and efficiency of the connection between the guide beam and the slide beam, reduces the workload of manual measurement and adjustment, and is suitable for outdoor construction environments.
Smart Images
Figure CN223937023U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bridge construction technology, and in particular relates to a docking device for large-span simply supported steel truss girders. Background Technology
[0002] In the construction of long-span bridges, the longitudinal towing method, which involves dragging the steel truss girder from the bridgehead to the pier, has been widely used to improve construction efficiency, reduce disruption to existing traffic, and ensure construction safety. When using the longitudinal towing method, a guide beam is installed at the front end of the steel truss girder, and a sliding beam is installed on the pier. The guide beam guides the steel truss girder smoothly into the sliding beam, while the sliding beam provides a sliding path for the steel truss girder to move on the pier, thus ensuring that the steel truss girder can be moved smoothly and accurately to the predetermined position. The connection between the guide beam and the sliding beam at the pier is a crucial step in ensuring the installation accuracy of the steel truss girder, requiring extremely high construction precision and technical requirements.
[0003] Currently, the connection between the guide beam and the sliding beam mainly adopts the following process: when the steel truss beam moves above the sliding beam, jacks or other jacking equipment are used to slowly lower the guide beam to achieve initial contact with the sliding beam; during the connection process, construction personnel need to monitor the descent speed and connection position of the guide beam in real time to ensure the smoothness and accuracy of the connection process; after the connection is completed, the position, levelness, and tilt angle of the guide beam also need to be accurately measured, and the guide beam is precisely adjusted using jacks, bolts, or welding. However, the above connection method has obvious limitations: on the one hand, the connection position of the guide beam requires extremely precise positioning, which increases the construction difficulty; on the other hand, the connection accuracy mainly relies on manual control, which is not only prone to errors, affecting the installation quality of the steel truss beam, but also increases the workload of construction personnel and reduces the overall construction efficiency.
[0004] Therefore, there is an urgent need for a docking device for large-span simply supported steel truss girders to solve the above problems. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a docking device for large-span simply supported steel truss girders, which ensures the docking accuracy of the guide beam and the slide beam, significantly improves the docking efficiency of the guide beam and the slide beam, and reduces the operation difficulty for the staff.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] A docking device is provided for large-span simply supported steel truss girders, used for docking guide beams and sliding beams in a longitudinal towing method, comprising:
[0008] A laser positioning element can be installed on the guide beam, and the laser positioning element is configured to emit a laser towards the slide beam;
[0009] The positioning assembly includes a limiting ring and a plurality of pushing members arranged circumferentially around the limiting ring. The limiting ring can be fitted onto the slide beam, and the pushing members can be movably inserted through the ring wall of the limiting ring along their extension direction, driving the pushing members to move. The pushing members can contact the slide beam and push the slide beam to move along the extension direction of the pushing members.
[0010] Optionally, the limiting ring includes a first limiting member and a second limiting member that are detachably connected, and a pushing member is movably disposed on the first limiting member or the second limiting member. The first limiting member and the second limiting member surround and form an inner hole of the limiting ring.
[0011] Optionally, the second limiting member can contact the pier, and the first limiting member is located on the side of the second limiting member away from the pier. The adjustment assembly also includes a linear drive member disposed on the first limiting member. The output end of the linear drive member is connected to the first limiting member and is used to drive the first limiting member to move in the direction of the second limiting member.
[0012] Optionally, the positioning assembly further includes a fastener and a fastening seat. A first connecting plate is provided on the first limiting member, and a second connecting plate is provided on the second limiting member. The fastener passes through the first connecting plate and the second connecting plate and is threadedly connected to the fastening seat.
[0013] Optionally, the pushing member includes a screw portion, a threaded hole is provided on the limiting ring, and the screw portion passes through the threaded hole and is threadedly connected to the threaded hole.
[0014] Optionally, the pusher also includes an anti-detachment part, which is provided at one end of the screw portion that extends into the inner hole of the limiting ring, to prevent the screw portion from disengaging from the threaded hole.
[0015] Optionally, the positioning assembly also includes a controller corresponding to each of the multiple pushers. The controller is located at the end of the corresponding pusher away from the slide beam and is used to control the length of the pusher extending into the inner hole of the limiting ring.
[0016] Optionally, the docking device for long-span simply supported steel truss girders also includes a laser receiver, which can be installed on the end face of the slide beam facing the guide beam and is communicatively connected to multiple controllers. The laser receiver is configured to receive the laser emitted by the laser positioning element.
[0017] Optionally, the docking device for large-span simply supported steel truss girders also includes a guide member, one end of which can be connected to the slide beam, the other end of which can be connected to the guide beam, and the extension length of the guide member is adjustable.
[0018] Optionally, the positioning assembly also includes multiple anti-slip components, each corresponding to a pusher component, with the anti-slip component positioned at the end of the corresponding pusher component that contacts the slide beam.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] This invention provides a docking device for large-span simply supported steel truss girders. During the docking process of the guide beam and the sliding beam, a laser emitted by a laser positioning component falls onto the sliding beam. Workers can determine the positional deviation between the guide beam and the sliding beam based on the laser's position on the sliding beam. This laser-based adjustment of positional deviation offers high accuracy and automation. Compared to manual positioning, it not only ensures the accuracy of the docking between the guide beam and the sliding beam but also significantly improves docking efficiency. Furthermore, laser positioning is less affected by factors such as ambient light, making it more suitable for outdoor construction operations. During the laser-based adjustment of the sliding beam position, workers drive one or more pushing components to move. These components push the sliding beam within a limiting ring until the laser indicates that the sliding beam and the guide beam are aligned. At this point, moving the guide beam along the laser emission direction ensures the accuracy of the docking position between the guide beam and the sliding beam and reduces the difficulty of operation for workers. During the movement of the slide beam driven by any one of the pushing members, the other pushing members can constrain the displacement of the slide beam in other directions. This not only reduces the difficulty of adjusting the position of the slide beam but also helps to ensure the accuracy of the slide beam's movement, thus ensuring the accuracy of the docking position between the guide beam and the slide beam. Moreover, after the guide beam is docked with the slide beam in the above manner, the staff no longer needs to measure the position of the guide beam, reducing the workload of the staff and improving the efficiency of docking. Attached Figure Description
[0021] Figure 1 A first structural schematic diagram of the docking device for a large-span simply supported steel truss beam provided by this utility model, installed on the guide beam and the slide beam.
[0022] Figure 2 A top view of the docking device for large-span simply supported steel truss beams provided by this utility model, installed on the guide beam and the slide beam.
[0023] Figure 3 A second structural schematic diagram of the docking device for large-span simply supported steel truss beams provided by this utility model, installed on the guide beam and the slide beam;
[0024] Figure 4 This is a front view of the adjustment component of the docking device for a large-span simply supported steel truss beam provided by this utility model.
[0025] in:
[0026] 100. Guide beam; 200. Slide beam; 300. Pier;
[0027] 1. Laser positioning components;
[0028] 2. Positioning assembly; 21. Limiting ring; 211. First limiting component; 2111. First connecting plate; 2112. First pressure plate; 212. Second limiting component; 2121. Second connecting plate; 2122. Second pressure plate; 22. Pushing component; 23. Linear drive component; 24. Controller; 25. Fastener;
[0029] 3. Guide components;
[0030] 4. Laser receiver. Detailed Implementation
[0031] It should be understood that in the description of this utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.
[0032] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0034] like Figures 1 to 4 As shown, this embodiment provides a docking device for large-span simply supported steel truss girders, which ensures the accuracy of docking between the guide beam 100 and the slide beam 200, significantly improves the efficiency of docking between the guide beam 100 and the slide beam 200, and reduces the difficulty of operation for workers.
[0035] See Figure 1 , Figure 2 and Figure 3The docking device for large-span simply supported steel truss girders is used for docking guide beam 100 and slide beam 200 in the longitudinal dragging method. It includes a laser positioning component 1 and an adjustment component 2. The laser positioning component 1 can be installed on the guide beam 100 and is configured to emit a laser towards the slide beam 200. The adjustment component 2 includes a limiting ring 21 and a plurality of pushing members 22 arranged circumferentially along the limiting ring 21. The limiting ring 21 can be sleeved on the slide beam 200. The pushing members 22 can movably penetrate the ring wall of the limiting ring 21 along their extension direction, driving the pushing members 22 to move. The pushing members 22 can contact the slide beam 200 and push the slide beam 200 to move along the extension direction of the pushing members 22.
[0036] The docking device for large-span simply supported steel truss girders provided in this embodiment involves a laser emitted by the laser positioning component 1 onto the slide beam 200 during the docking process of the guide beam 100 and the slide beam 200. Workers can determine the positional deviation between the guide beam 100 and the slide beam 200 based on the laser's position on the slide beam 200. This laser-based adjustment of positional deviation offers high accuracy and automation. Compared to manual positioning, it not only ensures the accuracy of the docking between the guide beam 100 and the slide beam 200 but also significantly improves docking efficiency. Furthermore, laser positioning is less affected by factors such as ambient light, making it more suitable for outdoor construction operations. During the laser-adjusted position adjustment of the slide beam 200, the operator moves one or more abutment members 22. These abutment members 22 push the slide beam 200 within the limiting ring 21 until the laser indicates that the slide beam 200 is aligned with the guide beam 100. At this point, moving the guide beam 100 along the laser emission direction ensures the accuracy of the docking position between the guide beam 100 and the slide beam 200, and also reduces the difficulty of operation for the operator. While any one abutment member 22 is moving the slide beam 200, the other abutment members 22 can constrain the displacement of the slide beam 200 in other directions. This not only reduces the difficulty of adjusting the position of the slide beam 200 but also helps ensure the accuracy of the slide beam 200's movement, thus ensuring the accuracy of the docking position between the guide beam 100 and the slide beam 200. Furthermore, after the guide beam 100 is docked with the slide beam 200 in the above manner, the operator no longer needs to measure the position of the guide beam 100, reducing the operator's workload and improving docking efficiency.
[0037] For example, the laser positioning element 1 employs a laser emitter. See also Figure 2 The laser positioning component 1 is provided in three parts: one is located on the top surface of the guide beam 100, and the other two are located on the two sides of the guide beam 100 along the horizontal direction, so that the staff can judge the relative position of the guide beam 100 and the slide beam 200 in the vertical and horizontal directions.
[0038] In this embodiment, see Figure 3The slide beam 200 has a rectangular cross-sectional shape, and the limiting ring 21 also has a rectangular cross-sectional shape. This ensures that the limiting ring 21 can be stably placed on the pier 300, and also prevents the limiting ring 21 from moving or rotating inside the inner hole of the slide beam 200.
[0039] Optionally, see Figure 3 and Figure 4 The limiting ring 21 includes a first limiting member 211 and a second limiting member 212 that are detachably connected. A pushing member 22 is movably disposed on either the first limiting member 211 or the second limiting member 212. The first limiting member 211 and the second limiting member 212 surround and form the inner hole of the limiting ring 21. The first limiting member 211 and the second limiting member 212 are detachably connected, so that when installing the limiting ring 21 onto the slide beam 200, the first limiting member 211 and the second limiting member 212 can be separated first. Then, after the first limiting member 211 and the second limiting member 212 have moved to the position to be installed, the first limiting member 211 and the second limiting member 212 can be connected. The limiting ring 21 can be fitted onto the slide beam 200 at the same time as the first limiting member 211 and the second limiting member 212 are connected. The operation is convenient and quick, improving the efficiency of installing the limiting ring 21 onto the slide beam 200.
[0040] For example, see Figure 4 The limiting ring 21 has a rectangular cross-sectional shape. The first limiting member 211 and the second limiting member 212 both have rectangular cross-sectional shapes. The first limiting member 211 and the second limiting member 212 are both provided with grooves, and the two grooves form the inner hole of the limiting ring 21.
[0041] Specifically, see Figure 3 and Figure 4 The limiting ring 21 has a rectangular cross-sectional shape, and three pushing members 22 are provided. One of the three pushing members 22 is located on the top surface of the limiting ring 21 and can push the slide beam 200 along the vertical direction. Figure 3 The slide beam 200 moves in the Z direction, and the other two pushing members 22 are respectively located on both sides of the limiting ring 21 in the horizontal direction, which can push the slide beam 200 in the horizontal direction. Figure 3 (Move in the X direction).
[0042] In this embodiment, see Figure 3 and Figure 4The second limiting member 212 can contact the pier 300. The first limiting member 211 is located on the side of the second limiting member 212 away from the pier 300. The adjustment assembly 2 also includes a linear drive member 23 disposed on the first limiting member 211. The output end of the linear drive member 23 is connected to the first limiting member 211 and is used to drive the first limiting member 211 to move towards the second limiting member 212. During the movement of the first limiting member 211 towards the second limiting member 212, the first limiting member 211 will gradually press the second limiting member 212 against the pier 300 to ensure that neither the first limiting member 211 nor the second limiting member 212 will move. This ensures the firmness of the connection between the first limiting member 211 and the second limiting member 212 and the stability of the limiting ring 21 installed on the pier 300. It also helps to ensure the accuracy of the movement of the pushing member 22.
[0043] For example, the linear drive 23 is a hydraulic cylinder. See also Figure 4 In the orientation, the first limiting member 211 is located above the second limiting member 212.
[0044] Further, see Figure 4 The adjustment assembly 2 also includes a fastener 25 and a fastening seat (not shown in the figure). A first connecting plate 2111 is provided on the first limiting member 211, and a second connecting plate 2121 is provided on the second limiting member 212. The fastener 25 passes through the first connecting plate 2111 and the second connecting plate 2121 and is threadedly connected to the fastening seat to realize the detachable connection between the first limiting member 211 and the second limiting member 212.
[0045] Specifically, see Figure 4 In the orientation of the first limiting member 211, a first connecting plate 2111 is disposed to the left of the first limiting member 211, and a first pressure plate 2112 extending horizontally is disposed to the right of the first limiting member 211. A second connecting plate 2121 is disposed to the left of the second limiting member 212, and a second pressure plate 2122 extending horizontally is disposed to the right of the second limiting member 212. The output end of the linear drive member 23 is connected to the first pressure plate 2112 and is used to drive the first pressure plate 2112 to move downward so that the first pressure plate 2112 presses against the second pressure plate 2122. This arrangement ensures that the left sides of the first limiting member 211 and the second limiting member 212 can be stably connected through the first connecting plate 2111 and the second connecting plate 2121, and the right sides of the first limiting member 211 and the second limiting member 212 can be stably connected through the first pressure plate 2112 and the second pressure plate 2122, thus ensuring the stability of the horizontal connection between the first limiting member 211 and the second limiting member 212.
[0046] For example, fastener 25 is a bolt and fastener seat is a nut.
[0047] Optionally, see Figure 1 and Figure 4 The pusher 22 includes a screw portion, and a threaded hole is provided on the limiting ring 21. The screw portion passes through the threaded hole and is threadedly connected to it. By screwing the pusher 22, the pusher 22 can move along its axial direction, thereby pushing the slide beam 200 to move within the inner hole of the limiting ring 21. The screw portion is threadedly connected to the threaded hole, so by controlling the number of rotations and the rotation angle of the pusher 22, the distance of movement of the pusher 22 can be precisely controlled, ensuring the accuracy of the movement of the slide beam 200. Moreover, when the slide beam 200 moves to be aligned with the guide beam 100, stopping the screwing of the pusher 22 will prevent the pusher 22 from moving further and prevent it from loosening. This ensures that the slide beam 200 will not shift after being aligned with the guide beam 100, thus ensuring the accuracy of the alignment between the slide beam 200 and the guide beam 100.
[0048] For example, the pusher 22 is made of bolts.
[0049] In this embodiment, the pusher 22 also includes an anti-detachment part, which is disposed at the end of the screw portion that extends into the inner hole of the limiting ring 21, and is used to prevent the screw portion from disengaging from the threaded hole. When the pusher 22 moves away from the slide beam 200, the pusher 22 will separate from the slide beam 200, releasing the constraint on the position of the slide beam 200. At the same time, the anti-detachment part moves with the screw portion. When the anti-detachment part moves to contact the inner hole wall of the limiting ring 21, the screw portion will not be able to continue moving under the constraint of the anti-detachment part, thus preventing the screw portion from disengaging from the threaded hole and preventing the pusher 22 from falling off the limiting ring 21 and being lost, which would affect subsequent use.
[0050] For example, the anti-detachment part uses a nut that is threaded into the screw part.
[0051] Optionally, see Figure 1 and Figure 4 The positioning component 2 also includes a controller 24 corresponding to each of the multiple pushers 22. The controller 24 is located at the end of the corresponding pusher 22 away from the slide beam 200 and is used to control the length of the pusher 22 extending into the inner hole of the limiting ring 21, so that the pusher 22 can move precisely to ensure the accuracy of the slide beam 200 movement and improve the accuracy of the docking between the slide beam 200 and the guide beam 100.
[0052] For example, the controller 24 uses an STM32 microcontroller. The STM32 microcontroller supports efficient interrupt management and can respond to external and internal events in real time, so that after the slide beam 200 moves to the appropriate position, the STM32 microcontroller 24 can quickly control the pusher 22 to stop moving, so as to ensure the accuracy of docking.
[0053] Furthermore, the controller 24 is configured to allow the use of an electric wrench to tighten the push member 22 at the construction site, thereby reducing the workload of workers. Specifically, the external wiring of the STM32 microcontroller is connected to the electric wrench. When the push member 22 pushes the slide beam 200 to the appropriate position, the STM32 microcontroller can control the electric wrench to stop working immediately, the push member 22 stops rotating, and the slide beam 200 no longer moves.
[0054] In this embodiment, see Figure 1 The docking device for large-span simply supported steel truss girders also includes a laser receiver 4. The laser receiver 4 can be installed on the end face of the slide beam 200 facing the guide beam 100 and is communicatively connected to multiple controllers 24. The laser receiver 4 is configured to receive the laser emitted by the laser positioning component 1. Based on the position of the received laser, the laser receiver 4 can determine the positional deviation between the slide beam 200 and the guide beam 100. Subsequently, the controllers 24 can determine the distance that the corresponding pushing component 22 needs to move based on the aforementioned value, so that the corresponding pushing component 22 can stop moving after moving the aforementioned distance, ensuring the accuracy of the movement of the slide beam 200.
[0055] For example, the laser receiver 4 uses a signal receiving flexible board.
[0056] Further, see Figure 1 Multiple laser positioning elements 1 and multiple laser receiving elements 4 are provided, and each laser receiving element 4 corresponds to one laser positioning element 1.
[0057] Optionally, the positioning component 2 also includes multiple anti-slip components, each corresponding to a plurality of pushers 22. The anti-slip components are located at the end of the corresponding pusher 22 that contacts the slide beam 200, which can increase the friction between the pusher 22 and the slide beam 200 and prevent the pusher 22 from slipping on the surface of the slide beam 200 during the movement of the slide beam 200, thus affecting the accuracy of the movement of the slide beam 200.
[0058] In this embodiment, the anti-slip component uses a coating made of Teflon; in other embodiments, the anti-slip component uses an anti-slip mat made of rubber.
[0059] Optionally, see Figure 1 and Figure 2The docking device for large-span simply supported steel truss girders also includes a guide member 3. One end of the guide member 3 can be connected to the slide beam 200, and the other end can be connected to the guide beam 100. The extension length of the guide member 3 is adjustable. After the slide beam 200 moves to be aligned with the guide beam 100, the guide beam 100 is moved to make contact with the slide beam 200. During the movement of the guide beam 100, the guide member 3 can guide the direction of movement of the guide beam 100. That is, the operator can also judge whether the position between the guide beam 100 and the slide beam 200 has shifted by observing the degree of offset of the guide member 3. If an offset occurs, the operator can use the degree of offset of the guide member 3 to help correct the movement direction of the guide beam 100 to ensure that the guide beam 100 can be accurately docked with the slide beam 200. During the movement of the guide beam 100, the extension length of the guide member 3 gradually decreases to avoid affecting the movement of the guide beam 100 towards the slide beam 200.
[0060] In this embodiment, the guide 3 is a telescopic rod, and as the guide beam 100 gradually approaches the slide beam 200, the guide 3 gradually shortens.
[0061] Further, see Figure 2 Multiple laser positioning components 1 and multiple guide components 3 are provided, and each guide component 3 corresponds to a laser positioning component 1.
[0062] In other embodiments, the guide 3 includes a guide first and a guide second slidably connected along its extension direction. The overlap length of guide first and guide second is adjustable. Guide first can be connected to the slide beam 200, and guide second can be connected to the guide beam 100. During the movement of the guide beam 100, guide first slides relative to guide second, the overlap length of guide first and guide second increases, and the extension length of guide 3 decreases.
[0063] Specifically, the first guide is a guide sleeve, and the second guide is a guide rod. The guide rod extends into the guide sleeve and is slidably connected to the guide sleeve. When the guide rod slides in the guide sleeve, the overlap length of the first guide and the second guide can be adjusted.
[0064] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model fall within the protection and disclosure scope of the present utility model.
Claims
1. A docking device for a long-span simply supported steel truss girder, used for docking a guide beam (100) and a sliding beam (200) in a longitudinal dragging method, characterized in that, include: A laser positioning element (1) can be installed on the guide beam (100), and the laser positioning element (1) is configured to emit a laser towards the slide beam (200); The positioning assembly (2) includes a limiting ring (21) and a plurality of pushing members (22) arranged circumferentially spaced along the limiting ring (21). The limiting ring (21) can be sleeved on the slide beam (200). The pushing members (22) are movably inserted through the ring wall of the limiting ring (21) along their extension direction, driving the pushing members (22) to move. The pushing members (22) can contact the slide beam (200) and push the slide beam (200) to move along the extension direction of the pushing members (22).
2. The docking device for large-span simply supported steel truss beams according to claim 1, characterized in that, The limiting ring (21) includes a first limiting member (211) and a second limiting member (212) that are detachably connected. The pushing member (22) is movably disposed on the first limiting member (211) or the second limiting member (212). The first limiting member (211) and the second limiting member (212) surround and form the inner hole of the limiting ring (21).
3. The docking device for large-span simply supported steel truss beams according to claim 2, characterized in that, The second limiting member (212) can contact the pier (300), and the first limiting member (211) is located on the side of the second limiting member (212) away from the pier (300). The adjustment component (2) also includes a linear drive member (23) disposed on the first limiting member (211). The output end of the linear drive member (23) is connected to the first limiting member (211) and is used to drive the first limiting member (211) to move in the direction of the second limiting member (212).
4. The docking device for large-span simply supported steel truss beams according to claim 2, characterized in that, The adjustment assembly (2) further includes a fastener (25) and a fastening seat. A first connecting plate (2111) is provided on the first limiting member (211), and a second connecting plate (2121) is provided on the second limiting member (212). The fastener (25) passes through the first connecting plate (2111) and the second connecting plate (2121) and is threadedly connected to the fastening seat.
5. The docking device for large-span simply supported steel truss beams according to claim 1, characterized in that, The pusher (22) includes a screw portion, and the limiting ring (21) is provided with a threaded hole. The screw portion passes through the threaded hole and is threadedly connected to the threaded hole.
6. The docking device for large-span simply supported steel truss beams according to claim 5, characterized in that, The pusher (22) also includes an anti-detachment part, which is disposed at one end of the screw portion that extends into the inner hole of the limiting ring (21) to prevent the screw portion from disengaging from the threaded hole.
7. The docking device for large-span simply supported steel truss beams according to claim 1, characterized in that, The adjustment component (2) also includes a controller (24) corresponding to each of the plurality of pushers (22). The controller (24) is located at the end of the corresponding pusher (22) away from the slide beam (200) and is used to control the length of the pusher (22) extending into the inner hole of the limiting ring (21).
8. The docking device for large-span simply supported steel truss beams according to claim 7, characterized in that, The docking device for large-span simply supported steel truss beams also includes a laser receiver (4), which can be installed on the end face of the slide beam (200) facing the guide beam (100) and is communicatively connected to multiple controllers (24). The laser receiver (4) is configured to receive the laser emitted by the laser positioning device (1).
9. The docking device for large-span simply supported steel truss girders according to any one of claims 1-8, characterized in that, The docking device for large-span simply supported steel truss beams also includes a guide (3), one end of which can be connected to the slide beam (200), the other end of which can be connected to the guide beam (100), and the extension length of the guide (3) is adjustable.
10. The docking device for large-span simply supported steel truss girders according to any one of claims 1-8, characterized in that, The adjustment component (2) also includes multiple anti-slip components, each corresponding to a multiple pushing component (22). The anti-slip component is located at the end of the corresponding pushing component (22) that contacts the slide beam (200).