Bridge pier top support moving device

Abstract

The application relates to the technical field of bridge construction equipment, and particularly discloses a bridge pier top support moving device, which comprises a square support frame, support support devices and support jacking devices are fixedly connected to the top corners of the square support frame, and a support transverse moving device is arranged at the bottom end of the square support frame; the support transverse moving device comprises a pulley, pulley support feet protruding upwards are arranged on the two sides of the pulley, the bottom end of the square support frame is clamped in the pulley support feet, an anti-rotation sleeve is arranged below the pulley, a cylindrical slide rail is rotationally connected in the anti-rotation sleeve, the two ends of the cylindrical slide rail extend out of the bottom end of the square support frame, and the two ends of the cylindrical slide rail extending out of the bottom end of the square support frame are detachably connected with rotating spanners. Through the rotatable cylindrical slide rail, the anti-rotation sleeve and the combined structure, the transverse movement and the longitudinal displacement fine adjustment of the support on the bridge can be effectively solved under the condition that the operation height is limited, and the actual engineering needs can be met.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction equipment technology, specifically to a bridge pier top support moving device. Background Technology

[0002] With the rapid development of highway construction, a bridge rotation construction method was invented to reduce the impact of construction time on traffic. This method involves first constructing the main structure of the bridge within a range that does not affect traffic flow, and then quickly merging the main structure by rotating it onto the pier tops before recasting. This allows for rapid bridge construction and quick opening to traffic, significantly improving construction efficiency and quality. After the main structure of a bridge constructed using the pier rotation method is merged, the rotation device needs to be removed. To ensure the coordinated operation of the superstructure and substructure, and to guarantee structural safety, durability, and driving comfort, permanent supports must be installed between the main beam and the pier tops. During the installation of permanent bearings, the position of the main beam is already fixed. The installation of the permanent bearings needs to be completed within the narrow space between the bottom of the main beam and the top of the pier. Accurate positioning of the bearing within this confined space is a prerequisite for successful installation and fixation. This requires the bearing to be able to move laterally across the bridge and also to make small adjustments longitudinally to ensure that the connecting device on the top plate of the bearing is accurately fixed to the pre-embedded connector at the bottom of the main beam. However, the limited space and operating height make it impossible to move the bearing. Therefore, a tool is urgently needed to assist in moving the bearing within the narrow space above the bridge pier. Utility Model Content

[0003] The purpose of this utility model is to provide a bridge pier top support moving device to solve the problem that the current limited space and operating height make it impossible to move the bridge pier top support to the precise installation position.

[0004] To address the above issues, the following technical solution is provided: A bridge pier top support moving device includes a square support frame. Support devices and support lifting devices are fixedly connected to the four corners of the top of the square support frame, arranged side-by-side. A lateral support moving device is supported at the bottom of the square support frame. The lateral support moving device includes a pulley with upwardly protruding pulley feet on both sides. The bottom of the square support frame is engaged with the pulley feet. An anti-rotation sleeve is installed below the pulley. A cylindrical slide rail is rotatably connected inside the anti-rotation sleeve. Both ends of the cylindrical slide rail extend beyond the bottom of the square support frame, and a rotating wrench is detachably connected to both ends of the cylindrical slide rail extending beyond the bottom of the square support frame.

[0005] The basic principle of the above technical solution is as follows: the support is placed on the support support device and the support lifting device on the square support frame. The bottom end of the square support frame is supported in the pulley support foot, which pushes the pulley to slide on the anti-rotation sleeve, so as to realize a large lateral movement of the support on the bridge. After the support is moved into place laterally, the cylindrical slide rail is rotated longitudinally by rotating the wrench, so that the square support frame above the cylindrical slide rail and the support rail move longitudinally, thereby realizing the longitudinal precise positioning of the support on the bridge. Finally, the support is precisely fixed to the bottom of the bridge beam by the lifting of the support lifting device and the support support device and support. Since the cylindrical slide rail is rotatably connected to the anti-rotation sleeve, the pulley above the anti-rotation sleeve will not rotate when the cylindrical slide rail rotates longitudinally, thus ensuring that the support moves longitudinally as a whole without rotation.

[0006] The beneficial effects of the above technical solution are as follows: This solution, through the combination of a rotatable cylindrical slide rail and an anti-rotation sleeve, effectively solves the problem of lateral movement and longitudinal displacement fine adjustment of the support on the bridge under the condition of limited operating height, and can meet the needs of actual engineering.

[0007] Furthermore, the four-sided support frame includes two I-shaped support beams and two U-shaped support beams, which are staggered from all four sides. The ends of adjacent I-shaped support beams and U-shaped support beams are fixed with bolts. First, the bottom ends of the two I-shaped support beams are horizontally supported on pulley supports, with the two I-shaped support beams parallel to each other. Then, the two U-shaped support beams are longitudinally connected between the two I-shaped support beams, thus forming the four-sided support frame.

[0008] Furthermore, the support lifting device is a jack, with a base at its bottom end. The base is fixed to the top of the I-shaped support beam by bolts. The support can be moved in different height positions by lifting with the jack.

[0009] Furthermore, the support device includes a top cap, a threaded column threaded to the bottom of the top cap, a support base fixedly connected to the bottom of the threaded column, and a base plate fixedly connected to the bottom of the support base. The base plate is bolted to the top of the I-shaped support beam. By adjusting the height of the top cap on the threaded column so that the top cap is level with the height of the jack, the support device can stably support the support below the support, thus stably supporting the support.

[0010] Furthermore, the top cap has bolt holes on its side, with threaded fastening bolts connected to them. Tightening the fastening bolts engages with the threaded column to lock and secure the top cap. After adjusting the height of the top cap to be level with the height of the jack, tightening the fastening bolts again engages with the threaded column to lock the top cap, thus fixing the overall support height of the support device.

[0011] Furthermore, the I-shaped support beam includes an upper flange plate, a lower flange plate, a web plate, and stiffening ribs on the web plate. The web plate is fixedly supported at the midpoint between the upper and lower flange plates. The web plate, together with the upper and lower flange plates, forms an I-shape. The stiffening ribs on the web plate are fixedly connected to both sides of the web plate and supported between the upper and lower flange plates. Connecting bolt holes are provided on the stiffening ribs at the ends of the web plate. A detachable connection between the I-shaped support beam and the U-shaped support longitudinal beam is achieved through bolts connected to these connecting bolt holes.

[0012] Furthermore, the U-shaped supporting longitudinal beam includes an upper flange plate, a lower flange plate, a web plate, and stiffening ribs on the web plate. The web plate is fixedly supported at the edge position between the upper and lower flange plates. The web plate, together with the upper and lower flange plates, forms a U-shape. The stiffening ribs on the web plate are fixedly connected to one side of the web plate and supported between the upper and lower flange plates. Connecting bolt holes are provided on the stiffening ribs at the ends of the web plate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the mobile device of this utility model; Figure 2 This is a schematic diagram showing the assembly relationship between the cylindrical slide rail and the pulley, and the assembly relationship between the slide rail and the anti-rotation sleeve of this utility model. Figure 3 This is a schematic diagram of the support device structure of this utility model; Figure 4 This is a schematic diagram of the I-shaped support beam of this utility model; Figure 5 This is a schematic diagram of the U-shaped support longitudinal beam of this utility model.

[0014] The reference numerals in the accompanying drawings of the instruction manual include: 1. Support device; 2. Jack; 3. I-shaped support beam; 4. U-shaped support longitudinal beam; 5. Anti-rotation sleeve; 6. Pulley block; 7. Cylindrical slide rail; 8. Pulley support foot; 9. Pulley; 10. Top cap; 11. Base plate; 12. Threaded column; 13. Support base; 14. Fixing bolt; 15. Fastening bolt; 16. Upper flange plate of the crossbeam; 17. Lower flange plate of the crossbeam; 18. Web plate of the crossbeam; 19. Stiffening rib of the web plate of the crossbeam; 20. Connecting bolt hole one; 21. Upper flange plate of the longitudinal beam; 22. Web plate of the longitudinal beam; 23. Lower flange plate of the longitudinal beam; 24. Stiffening rib of the web plate of the longitudinal beam; 25. Connecting bolt hole two; 26. Rotating wrench. Detailed Implementation

[0015] The following detailed description illustrates the specific implementation method: The basic implementation examples are as follows: Figure 1-5 As shown: A bridge pier top support moving device, such as Figure 1 As shown, the system includes a four-sided support frame. Four sets of support devices 1 and support lifting devices are fixedly connected to the four corners of the top of the four-sided support frame. The four-sided support frame includes two I-shaped support beams 3 and two U-shaped support beams 4. The I-shaped support beams 3 and U-shaped support beams 4 are made of steel. The two I-shaped support beams 3 and two U-shaped support beams 4 are staggered from all four sides. The ends of adjacent I-shaped support beams 3 and U-shaped support beams 4 are fixed with bolts. Two sets of support devices 1 and support lifting devices are fixed to the top ends of each I-shaped support beam 3 with bolts. Each set of support devices 1 and support lifting devices is arranged adjacent to each other. The bottom of the four-sided support frame is supported by a support lateral movement device.

[0016] like Figure 2 As shown, the lateral movement device of the support includes a pulley block 6, which includes a pulley 9 and pulley support feet 8. The pulley 9 has upwardly protruding pulley support feet 8 fixedly connected to both sides by bolts. The bottom end of the I-shaped support beam 3 of the square support frame is engaged in the pulley support feet 8. An anti-rotation sleeve 5 is installed below the pulley 9. A cylindrical slide rail 7 is rotatably connected inside the anti-rotation sleeve 5. There is a small gap between the anti-rotation sleeve 5 and the cylindrical slide rail 7. The gap is coated with lubricating oil to ensure that the friction between the two is small enough. Therefore, when the cylindrical slide rail 7 rotates, it will not drive the anti-rotation sleeve 5 to rotate. The two ends of the cylindrical slide rail 7 extend beyond the bottom end of the square support frame. The two ends of the cylindrical slide rail 7 extending beyond the bottom end of the square support frame are provided with threaded holes. A rotating wrench 26 is threaded into the threaded holes. The cylindrical slide rail 7 is driven to move longitudinally by rotating the wrench 26.

[0017] The support lifting device is a jack 2, and the bottom of the jack 2 is equipped with a base, which is fixed to the top of the I-shaped support beam 3 by bolts.

[0018] like Figure 3 As shown, the support device 1 includes a top cap 10, a threaded column 12, a support base 13, and a base plate 11. The bottom end of the top cap 10 is threadedly connected to the threaded column 12, and the bottom end of the threaded column 12 is threadedly connected to the support base 13. The bottom end of the support base 13 is welded to the base plate 11. The base plate 11 is fixed above the I-shaped support beam 3 by fixing bolts 14. The side of the top cap 10 is provided with bolt holes, and fastening bolts 15 are threaded horizontally in the bolt holes. Tightening the fastening bolts 15 abuts against the threaded column 12 to lock and fix the top cap 10.

[0019] like Figure 4As shown, the I-shaped support beam 3 includes an upper flange plate 16, a lower flange plate 17, a web plate 18, and web stiffeners 19. The web plate 18 is welded and supported at the middle position between the upper flange plate 16 and the lower flange plate 17. The web plate 18, together with the upper flange plate 16 and the lower flange plate 17, forms an I-shape. The web stiffeners 19 are welded to both sides of the web plate 18 and supported between the upper flange plate 16 and the lower flange plate 17. A connecting bolt hole 20 is provided on the web stiffener 19 at the end of the web plate 18.

[0020] like Figure 5 As shown, the U-shaped support longitudinal beam 4 includes an upper flange plate 21, a lower flange plate 23, a web plate 22, and a web stiffener 24. The web plate 22 is welded and supported at the edge position between the upper flange plate 21 and the lower flange plate 23. The web plate 18 of the crossbeam is combined with the upper flange plate 16 and the lower flange plate 17 of the crossbeam to form a U-shape. The web stiffener 24 of the longitudinal beam is welded to one side of the web plate 22 and supported between the upper flange plate 21 and the lower flange plate 23. The web stiffener 24 of the longitudinal beam at the end of the web plate 22 is provided with a connecting bolt hole 25.

[0021] Bolts are used to pass through connecting bolt holes 1-20 and 2-25 and are fitted with nuts to connect the I-shaped support beam 3 and the U-shaped support longitudinal beam 4. The I-shaped support beam 3 and the U-shaped support longitudinal beam 4 are connected to form a square support frame.

[0022] The specific implementation process is as follows: The support is mounted on the top cap 10 and jack 2 on the square support frame. The bottom end of the I-shaped support beam 3 of the square support frame is supported in the pulley support foot 8. First, the pulley 9 is pushed to slide on the anti-rotation sleeve 5, realizing a relatively large lateral movement of the support on the bridge. After the support is in place laterally, the cylindrical slide rail 7 is rotated longitudinally by rotating the wrench 26, thereby causing the square support frame and the support rail above the cylindrical slide rail 7 to move longitudinally, thus realizing the precise longitudinal positioning of the support on the bridge. Finally, the support is lifted to the bottom of the bridge beam by the jack 2, and the top cap 1 of the support support device 1 is adjusted. The height of the jack 2 is level with the height of the support 0, which allows the top cap 10 of the support support device 1 to be stably supported under the support, thereby achieving precise fixation between the support and the bottom of the bridge beam. Since the cylindrical slide rail 7 is rotatably connected to the anti-rotation sleeve 5, the pulley 9 above the anti-rotation sleeve 5 will not rotate when the cylindrical slide rail 7 rotates longitudinally, thus ensuring that the support moves longitudinally as a whole without rotating. This device, through the combination structure of the rotatable cylindrical slide rail and the anti-rotation sleeve 5, effectively solves the problem of lateral movement and longitudinal displacement fine adjustment of the support on the bridge under the condition of limited operating height, and can meet the needs of actual engineering.

[0023] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A bridge pier top support moving device, characterized in that: The system includes a four-sided support frame, with support devices and support lifting devices fixedly connected to the four corners of the top of the frame. The support devices and support lifting devices are arranged side by side. The bottom of the four-sided support frame is supported by a support lateral movement device. The support lateral movement device includes a pulley with upwardly protruding pulley feet on both sides. The bottom of the four-sided support frame is engaged in the pulley feet. An anti-rotation sleeve is installed below the pulley. A cylindrical slide rail is rotatably connected inside the anti-rotation sleeve. Both ends of the cylindrical slide rail extend beyond the bottom of the four-sided support frame. A rotating wrench is detachably connected to both ends of the cylindrical slide rail extending beyond the bottom of the four-sided support frame.

2. The bridge pier top support moving device according to claim 1, characterized in that: The four-sided support frame includes two I-shaped support beams and two U-shaped support beams. The two I-shaped support beams and the two U-shaped support beams are staggered from four sides, and the ends of adjacent I-shaped support beams and U-shaped support beams are fixed by bolts.

3. The bridge pier top support moving device according to claim 2, characterized in that: The support lifting device is a jack, and the bottom of the jack is equipped with a base, which is fixed to the top of the I-shaped support beam by bolts.

4. The bridge pier top support moving device according to claim 3, characterized in that: The support device includes a top cap, a threaded column is threadedly connected to the bottom end of the top cap, a support base is fixedly connected to the bottom end of the threaded column, a base plate is fixedly connected to the bottom end of the support base, and the base plate is fixed to the top of the I-shaped support beam by bolts.

5. A bridge pier top support moving device according to claim 4, characterized in that: The top cap has bolt holes on its side, and fastening bolts are threaded into the bolt holes. Tightening the fastening bolts abuts against the threaded column to lock and fix the top cap.

6. A bridge pier top support moving device according to claim 2, characterized in that: The I-shaped support beam includes an upper flange plate, a lower flange plate, a web plate, and stiffening ribs on the web plate. The web plate is fixedly supported at the middle position between the upper and lower flange plates. The web plate, the upper flange plate, and the lower flange plate combine to form an I-shape. The stiffening ribs on the web plate are fixedly connected to both sides of the web plate and supported between the upper and lower flange plates. Connecting bolt holes are provided on the stiffening ribs at the ends of the web plate.

7. A bridge pier top support moving device according to claim 2, characterized in that: The U-shaped supporting longitudinal beam includes an upper flange plate, a lower flange plate, a web plate, and stiffening ribs on the web plate. The web plate is fixedly supported at the edge position between the upper and lower flange plates. The web plate, together with the upper and lower flange plates, forms a U-shape. The stiffening ribs on the web plate are fixedly connected to one side of the web plate and supported between the upper and lower flange plates. Connecting bolt holes are provided on the stiffening ribs at the ends of the web plate.

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