A prefabricated concrete bridge prefabricated component butt joint device

Abstract

The application relates to a prefabricated component butt joint device for a fabricated concrete bridge, and relates to the field of bridge prefabricated component butt joint equipment. The prefabricated component butt joint device comprises a box girder and a butt joint piece. The butt joint piece comprises a bottom plate, a double-end hydraulic cylinder and a lifting frame. The bottom plate is horizontally arranged on the top surface of a pier, a double-end hydraulic cylinder is horizontally fixed in the middle of the top surface of the bottom plate, lifting frames are vertically arranged on both sides of the top surface of the bottom plate, the lifting frames are used for lifting the box girder for butt joint processing, a lower roller seat is vertically and liftably arranged on the bottom surface of the lifting frame, the lower roller seat is used for vertically lifting the butt joint position of the box girder, and pressing pieces are arranged on the two sides of the interior of the lifting frame. Compared with the mode that a plurality of workers cooperate and a plurality of tools are matched in the traditional butt joint, the application simplifies the butt joint operation from the complicated cooperation of a plurality of people to the standardization control of a single person, reduces the operation links, and solves the defects that the traditional mode is complicated and requires high personnel cooperation.

Description

Technical Field

[0001] This application relates to the technical field of bridge precast component docking equipment, and in particular to a precast concrete bridge component docking device. Background Technology

[0002] In the field of modern bridge engineering construction, precast concrete bridge components have the advantage of industrialized production. These components are cast and cured in factories or prefabrication yards using standardized molds, and have the characteristics of high dimensional accuracy, stable structural strength, and strong quality control. Compared with on-site casting construction, precast components can significantly shorten the on-site construction period and reduce the interference of construction on the surrounding environment.

[0003] The core of on-site construction of precast concrete bridge components lies in component docking and assembly. Precast components transported to the construction site are transferred to their designed positions using hoisting equipment, achieving precise docking of adjacent component ends. Assembly is then completed through methods such as wet joint pouring, prestressing tensioning, and bolt connections, ultimately forming a complete and structurally stable bridge structure. The quality of the docking construction directly determines the safety and durability of the overall bridge structure. Insufficient docking precision can lead to incomplete wet joint pouring, uneven prestressing stress, and, during long-term operation, problems such as joint cracking and steel corrosion, severely impacting the bridge's service life.

[0004] Regarding the aforementioned technologies, the inventors have discovered that current construction methods for connecting the ends of precast concrete bridge components still primarily rely on traditional methods of crane lifting and manual fine-tuning. This operational mode exhibits significant drawbacks in large-scale, high-precision bridge engineering projects, characterized by cumbersome procedures and low construction efficiency. Traditional connection processes require multi-stage coordination and depend on manual intervention. The entire connection process necessitates frequent adjustments to crane posture and manual tool operation, with the connection procedure alone consuming a significant amount of time and severely hindering the overall construction progress. Manual fine-tuning relies on worker experience and simple measuring tools, making it difficult to achieve high-precision connection at the component ends. Utility Model Content

[0005] To overcome the current situation where the end-joining construction of precast concrete bridge components still relies on crane lifting and manual fine-tuning, the entire joining process requires frequent adjustments to the crane posture and manual tool operation, which consumes a lot of time and seriously restricts the overall construction progress. Manual fine-tuning relies on workers' experience and simple measuring tools, making it difficult to achieve high-precision joining of the component ends. This application provides a precast concrete bridge component joining device.

[0006] The technical solution provided in this application for a precast concrete bridge component docking device is as follows: A precast concrete bridge component docking device includes a box girder and a docking component. The docking component includes a base plate, a double-headed hydraulic cylinder, and a lifting frame. The base plate is horizontally set on the top surface of the pier, and the double-headed hydraulic cylinder is horizontally fixed in the middle of the top surface of the base plate. Lifting frames are vertically set on both sides of the top surface of the base plate, and the lifting frames are used to lift the box girder for docking. A lower roller seat is vertically and liftably set on the bottom surface of the lifting frame, and the lower roller seat is used to vertically lift and lower the box girder to the docking position. Pressing members are set on both sides of the inside of the lifting frame, and the pressing members are used to push the box girder to adjust the left and right docking position. The two output ends of the double-headed hydraulic cylinder are fixedly assembled with the lifting frames on both sides of the base plate.

[0007] By adopting the above technical solution, the precast concrete bridge component docking device is horizontally fixed to the top surface of the pier via a base plate, providing overall support. A double-headed hydraulic cylinder provides power, and its two output ends are fixedly assembled with a lifting frame, allowing for simultaneous up-and-down movement of the lifting frame from both sides, thus precisely supporting the docking position of the box girder. The lower roller seats on both sides of the lifting frame move vertically, ensuring stable adjustment of the box girder during docking. The pressing component moves inside the lifting frame on both sides during the box girder docking process, pushing the box girder left and right to adjust its docking position, ultimately achieving precise alignment and stable fixation of the box girder, ensuring efficient and accurate docking of the precast bridge components. Through the cooperation of the base plate and the double-headed hydraulic cylinder, the lifting frame and lower roller seats are used to lift and adjust the position of the box girder by moving up and down, and then the pressing component pushes it left and right for precise alignment. The entire process is completed under the precise control of the hydraulic system, ensuring accurate docking of the bridge components.

[0008] Optionally, a guide wheel is rotatably connected to the bottom surface of the support frame, and a guide groove is provided on the outer circumference of the guide wheel.

[0009] By adopting the above technical solution, a guide wheel is fixed on the bottom surface of the lifting frame by a rotating connection. The guide wheel has a guide groove on its outer circumference to guide the movement and ensure the smoothness and accurate positioning of the lifting frame during movement.

[0010] Optionally, a guide rail is horizontally fixed on the top surface of the base plate, and the guide rail is engaged with the guide groove on the guide wheel.

[0011] By adopting the above technical solution, a guide rail is horizontally fixed on the top surface of the base plate. The guide rail engages with the guide groove on the guide wheel, enabling precise linear movement of the lifting frame along the guide rail. Since the guide wheel can rotate relative to the lifting frame, it can automatically adjust the contact point with the guide rail during the movement of the lifting frame, ensuring smooth and stable movement.

[0012] Optionally, multiple guide cylinders are vertically fixed on the inner bottom surface of the lifting frame, and a vertical lifting hydraulic cylinder is vertically fixed on the inner bottom surface of the lifting frame.

[0013] By adopting the above technical solution, the guide cylinder provides vertical guidance for the lower idler roller seat, ensuring that it remains vertical during vertical lifting and lowering; the vertical lifting hydraulic cylinder is responsible for providing the thrust required for the lower idler roller seat to lift and lower.

[0014] Optionally, a guide post is vertically fixed on the bottom surface of the lower roller seat, and the guide post is vertically slidably inserted into the guide cylinder of the lifting frame. The bottom surface of the lower roller seat is fixedly assembled with the top end of the vertical lifting hydraulic cylinder.

[0015] By adopting the above technical solution, the lower idler roller seat moves up and down under the drive of the vertical lifting hydraulic cylinder through the cooperation of the guide column and guide cylinder fixed on its bottom surface, thereby realizing the lifting and adjustment of the lower idler roller.

[0016] Optionally, the pressing component includes a pressing roller plate, and a rod seat is provided between the pressing roller plate and the lifting frame. The rod seat is slidably inserted into the side end face of the lifting frame.

[0017] By adopting the above technical solution, the pressure roller in the pressure component is responsible for directly applying pressure to the material being processed, ensuring its stability during processing. The rod seat, as a key support component of the pressure component, can slide on the side end face of the support frame, allowing it to be adjusted to different working positions.

[0018] Optionally, a horizontal lifting hydraulic cylinder is fixed to the side end face of the lifting frame, and the output end of the horizontal lifting hydraulic cylinder is fixed to the rod seat.

[0019] By adopting the above technical solution, the horizontal lifting hydraulic cylinder achieves precise position control of the pressing component by applying a horizontal thrust to the rod seat.

[0020] Optionally, ball heads are fixed on the adjacent end faces of the pressure roller plate and the rod seat, and universal support is provided between the adjacent end faces of the pressure roller plate and the rod seat. Cup seats are fixed at the ends of the universal support, and the cup seats are rotatably connected to the ball heads.

[0021] By adopting the above technical solution, the pressure roller plate and the rod seat are connected by a ball joint, and the cup seat on the universal joint is rotated to connect with the ball joint, allowing the entire system to be flexibly adjusted in three-dimensional space to adapt to the processing requirements of workpieces of different shapes and sizes. The horizontal lifting hydraulic cylinder drives the rod seat to slide along the side end face of the lifting frame, and multi-directional adjustment is achieved through the universal connection structure including the ball joint and cup seat. Finally, pressure is applied by the pressure roller plate, ensuring the reliability and efficiency of the processing.

[0022] In summary, this application includes at least one of the following beneficial technical effects: Through a modular and automated adjustment structure, the docking operation is standardized and simplified, eliminating the need for close human intervention. During the docking process, the height adjustment and horizontal alignment of the precast concrete box girder are both driven by hydraulic cylinders. Activating the vertical lifting hydraulic cylinder pushes the lower roller seat to lift the box girder and adjust its height, while activating the horizontal lifting hydraulic cylinder pushes the pressure roller to move the box girder left and right. There is no need for workers to stand on a temporary platform and use tools such as crowbars and jacks for fine-tuning, completely avoiding the complexity of manual operation. The entire docking process requires only three standardized steps: laying the docking component base plate, hoisting the box girder to the lifting frame, and activating the hydraulic cylinder to complete the adjustment and docking. Each step is triggered by a single button on the equipment control system, eliminating the need to rely on workers' experience and judgment. This avoids the tedious process of repeatedly adjusting the crane posture and manually measuring and calibrating in traditional docking. A single person can complete the operation through the control console, significantly reducing the complexity of construction. Compared to the traditional docking method that requires multiple workers and tools, this technology simplifies the docking operation from complex collaboration among multiple people to standardized control by a single person. This reduces the number of operational steps and solves the shortcomings of the traditional method, which is cumbersome and requires high coordination. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the overall structure of the embodiment of this application in an exploded state; Figure 3 This is a schematic diagram of the structure of the docking component in the exploded state according to an embodiment of this application; Figure 4 This is a schematic diagram of the support frame in the disassembled state according to an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the pressing component in the disassembled state according to an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Box girder; 2. Connecting component; 21. Base plate; 22. Double-headed hydraulic cylinder; 23. Guide rail; 24. Lifting frame; 241. Guide wheel; 25. Vertical lifting hydraulic cylinder; 26. Lower support roller seat; 261. Guide column; 262. Guide cylinder; 27. Horizontal lifting hydraulic cylinder; 28. Pressing component; 281. Pressing roller plate; 282. Rod seat; 283. Universal joint; 284. Ball joint; 285. Bowl seat. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] This application discloses a docking device for precast concrete bridge components. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4A precast concrete bridge component docking device includes a box girder 1 and a docking component 2. The docking component 2 includes a base plate 21, a double-headed hydraulic cylinder 22, and a lifting frame 24. The base plate 21 is horizontally set on the top surface of the pier, and the double-headed hydraulic cylinder 22 is horizontally fixed in the middle of the top surface of the base plate 21. The lifting frame 24 is vertically set on both sides of the top surface of the base plate 21, and the lifting frame 24 is used to lift the box girder 1 for docking. The bottom surface of the lifting frame 24 is vertically and liftably set with a lower roller seat 26, and the lower roller seat 26 is used to vertically lift and lower the box girder 1 to the docking position. The inside of the lifting frame 24 is provided with a pressing member 28 on both sides, and the pressing member 28 is used to push the box girder 1 to adjust the left and right docking position. The two output ends of the double-headed hydraulic cylinder 22 are fixedly assembled with the lifting frame 24 on both sides of the base plate 21.

[0027] By adopting the above technical solution, the precast concrete bridge component docking device is horizontally fixed to the top surface of the pier via the base plate 21, which provides overall support. The double-headed hydraulic cylinder 22 provides power and is fixedly assembled with the lifting frame 24 through its two output ends. It can simultaneously push the lifting frame 24 from both sides to perform up-and-down lifting operations, thereby precisely lifting the box girder 1 to the docking position. The lower roller seats 26 on both sides of the lifting frame 24 rise and fall vertically, ensuring that the box girder 1 can be stably adjusted during docking. The pressing component 28 moves inside the lifting frame 24 on both sides during the docking process of the box girder 1, pushing the box girder 1 to adjust its docking position left and right, ultimately achieving precise alignment and stable fixation of the box girder 1, ensuring efficient and precise docking of the precast bridge components. Through the cooperation of the base plate 21 and the double-headed hydraulic cylinder 22, the lifting frame 24 and the lower roller seats 26 are used to lift and adjust the position of the box girder 1 by rising and falling, and then the pressing component 28 is used to push it left and right for precise alignment. The entire process is completed under the precise control of the hydraulic system, ensuring the precise docking of the bridge components.

[0028] Reference Figure 4 A guide wheel 241 is rotatably connected to the bottom surface of the lifting frame 24, and a guide groove is formed on the outer circumference of the guide wheel 241. The guide wheel 241, with its guide groove on its outer circumference, serves as a guide, ensuring smooth movement and accurate positioning of the lifting frame 24 during movement. A guide rail 23 is horizontally fixed to the top surface of the base plate 21, and the guide rail 23 engages with the guide groove on the guide wheel 241. This engagement of the guide rail 23 with the guide groove on the guide wheel 241 enables precise linear movement of the lifting frame 24 along the guide rail 23. Because the guide wheel 241 can rotate relative to the lifting frame 24, it automatically adjusts its contact point with the guide rail 23 during movement, ensuring smooth and stable movement.

[0029] Reference Figure 4Multiple guide cylinders 262 are vertically fixed to the inner bottom surface of the lifting frame 24, and a vertical lifting hydraulic cylinder 25 is also vertically fixed to the inner bottom surface of the lifting frame 24. The function of the guide cylinders 262 is to provide vertical guidance for the lower roller seat 26, ensuring that it remains vertical during vertical lifting and lowering; the vertical lifting hydraulic cylinder 25 is responsible for providing the thrust required for the lower roller seat 26 to lift and lower. A guide post 261 is vertically fixed to the bottom surface of the lower roller seat 26, and the guide post 261 is vertically slidably inserted into the guide cylinder 262 of the lifting frame 24. The bottom surface of the lower roller seat 26 is fixedly assembled with the top end of the vertical lifting hydraulic cylinder 25. The lower roller seat 26 moves up and down under the drive of the vertical lifting hydraulic cylinder 25 through the cooperation of the guide post 261 and the guide cylinder 262 fixed to its bottom surface, thereby realizing the lifting and lowering adjustment of the lower roller.

[0030] Reference Figure 4 and Figure 5 The pressing component 28 includes a pressing roller plate 281, and a rod seat 282 is disposed between the pressing roller plate 281 and the lifting frame 24. The rod seat 282 is slidably inserted into the side end face of the lifting frame 24. The pressing roller plate 281 in the pressing component 28 is responsible for directly applying pressure to the material being processed, ensuring its stability during processing. The rod seat 282, as a key support component of the pressing component 28, can slide on the side end face of the lifting frame 24, allowing it to be adjusted to different working positions. A horizontal lifting hydraulic cylinder 27 is fixed on the side end face of the lifting frame 24, and the output end of the horizontal lifting hydraulic cylinder 27 is fixed on the rod seat 282. The horizontal lifting hydraulic cylinder 27 achieves precise position control of the pressing component 28 by applying a horizontal thrust to the rod seat 282. Ball heads 284 are fixed to the adjacent end faces of the pressure roller plate 281 and the rod seat 282, and a universal support 283 is provided between the adjacent end faces of the pressure roller plate 281 and the rod seat 282. Cup seats 285 are fixed to the ends of the universal support 283, and the cup seats 285 are rotatably connected to the ball heads 284. The pressure roller plate 281 and the rod seat 282 are connected by the ball heads 284, and the rotatable connection between the cup seats 285 on the universal support 283 and the ball heads 284 allows the entire system to be flexibly adjusted in three-dimensional space, thus adapting to the processing requirements of workpieces of different shapes and sizes. The horizontal lifting hydraulic cylinder 27 drives the rod seat 282 to slide along the side end face of the lifting frame 24, and multi-directional adjustment is achieved by the universal connection structure including the ball heads 284 and the cup seats 285. Finally, pressure is applied by the pressure roller plate 281, ensuring the reliability and efficiency of the processing.

[0031] The implementation principle of the prefabricated component docking device for assembled concrete bridges in this application embodiment is as follows: First, when connecting the two precast concrete box girders on the pier, the bottom plate 21 of the connecting piece 2 is first laid on the top surface of the pier, and then the two precast concrete box girders are hoisted and placed in the two support frames 24 of the connecting piece 2 respectively. Then, when adjusting the docking position of the two precast concrete box girders, firstly, the vertical lifting hydraulic cylinder 25 on the bottom surface of the lifting frame 24 is extended, pushing the lower roller seat 26 to lift the precast concrete box girder upward, and the docking height of the precast concrete box girder is adjusted vertically to ensure that the docking height of the two precast concrete box girders is consistent. At the same time, the horizontal lifting hydraulic cylinders 27 on both sides of the lifting frame 24 are extended, pushing the pressure roller plate 281 on the pressure member 28 to press the precast concrete box girder to move left and right, thereby adjusting the docking position of the two precast concrete box girders to be consistent in the horizontal direction. Finally, the double-headed hydraulic cylinder 22 on the top surface of the base plate 21 is retracted, pushing the guide wheel 241 on the bottom surface of the lifting frame 24 to move laterally on the guide rail 23 on the base plate 21, so that the two precast concrete box girders that have been adjusted and docked are docked together.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A precast component docking device for assembled concrete bridges, characterized in that, The bridge includes a box girder (1) and a connecting component (2). The connecting component (2) includes a base plate (21), a double-headed hydraulic cylinder (22), and a support frame (24). The base plate (21) is horizontally set on the top surface of the pier, and the double-headed hydraulic cylinder (22) is horizontally fixed in the middle of the top surface of the base plate (21). The support frame (24) is vertically set on both sides of the top surface of the base plate (21), and the support frame (24) is used to support the box girder (1) for docking. The bottom surface of the lifting frame (24) is vertically and vertically equipped with a lower roller seat (26), which is used to vertically lift the box beam (1) to the docking position. Both sides of the inside of the lifting frame (24) are provided with abutment members (28), which are used to push the box beam (1) to adjust the left and right docking position. The two output ends of the double-headed hydraulic cylinder (22) are fixedly assembled with the lifting frame (24) on both sides of the base plate (21).

2. The assembly-type precast concrete bridge component docking device according to claim 1, characterized in that: The bottom surface of the lifting frame (24) is rotatably connected to a guide wheel (241), and a guide groove is provided on the outer circumference of the guide wheel (241).

3. The assembly-type precast concrete bridge component docking device according to claim 2, characterized in that: A guide rail (23) is horizontally fixed on the top surface of the base plate (21), and the guide rail (23) is engaged with the guide groove on the guide wheel (241).

4. The assembly-type precast concrete bridge component docking device according to claim 1, characterized in that: Multiple guide cylinders (262) are vertically fixed on the inner bottom surface of the lifting frame (24), and a vertical lifting hydraulic cylinder (25) is vertically fixed on the inner bottom surface of the lifting frame (24).

5. The assembly-type precast concrete bridge component docking device according to claim 4, characterized in that: A guide post (261) is vertically fixed on the bottom surface of the lower roller seat (26), and the guide post (261) is vertically slidably inserted into the guide cylinder (262) of the lifting frame (24). The bottom surface of the lower roller seat (26) is fixedly assembled with the top end of the vertical lifting hydraulic cylinder (25).

6. The assembly-type precast concrete bridge component docking device according to claim 1, characterized in that: The pressing component (28) includes a pressing roller plate (281), and a rod seat (282) is provided between the pressing roller plate (281) and the lifting frame (24). The rod seat (282) is slidably inserted into the side end face of the lifting frame (24).

7. The assembly-type precast concrete bridge component docking device according to claim 6, characterized in that: A horizontal lifting hydraulic cylinder (27) is fixed on the side end face of the lifting frame (24), and the output end of the horizontal lifting hydraulic cylinder (27) is fixed on the rod seat (282).

8. The assembly-type precast concrete bridge component docking device according to claim 7, characterized in that: Ball heads (284) are fixed on the adjacent end faces of the pressure roller plate (281) and the rod seat (282), and a universal support (283) is provided between the adjacent end faces of the pressure roller plate (281) and the rod seat (282). A cup seat (285) is fixed at the end of the universal support (283), and the cup seat (285) is rotatably connected to the ball head (284).

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