Self-adapting intelligent pushing device for steel-concrete composite beam bridge

Abstract

This invention discloses an adaptive intelligent jacking device for steel-concrete composite beam bridges, relating to the field of bridge construction equipment technology. It includes a bridge beam and a foundation support assembly. The foundation support assembly is equipped with a multi-stage jacking mechanism, a foundation anchoring mechanism, and an intelligent control system. The foundation support assembly includes an upper mounting plate and a lower mounting plate, with a horizontal adjustment mechanism connecting the support column to the upper mounting plate. The multi-stage jacking mechanism includes a primary jacking mechanism, a secondary jacking mechanism, and a tertiary fine-tuning mechanism. This invention provides stable support for the entire device through the foundation support assembly. Combined with the horizontal adjustment mechanism, the horizontal state of the upper mounting plate can be adaptively adjusted to adapt to foundations with varying flatness, avoiding uneven stress on the device and reducing construction safety hazards. The multi-stage jacking mechanism, employing a combination of primary jacking, secondary jacking, and tertiary fine-tuning, significantly improves jacking accuracy, ensuring the bridge beam is accurately pushed to the design position, and has good engineering application value.

Description

Technical Field

[0001] This invention relates to the field of bridge construction equipment technology, specifically an adaptive intelligent jacking device for steel-concrete composite beam bridges. Background Technology

[0002] Steel-concrete composite beam bridges are widely used in bridge engineering due to their combination of the high strength and large span of steel structures with the high stiffness and good stability of concrete structures. In the construction of steel-concrete composite beam bridges, incremental launching is a commonly used erection method. Its core principle is to gradually push the bridge beams to the designed position using a launching device, resulting in high construction efficiency and minimal impact on the surrounding environment. However, existing steel-concrete composite beam bridge launching devices still have many shortcomings and cannot meet the needs of complex construction scenarios: First, the launching mechanism is mostly a single-stage launching device with low launching accuracy, which cannot achieve fine adjustment and is prone to beam displacement, affecting construction quality; Second, there is a lack of effective horizontal adjustment mechanism. When the construction foundation is uneven, the launching device is subjected to uneven force, which can easily damage the equipment or cause the beam to be unbalanced, posing a safety hazard; Third, the foundation anchoring effect is not good, and the device is prone to displacement during the launching process, affecting the launching stability; Fourth, the launching pressure cannot be monitored in real time during the launching process, making it difficult to accurately control the launching force, which can easily lead to over-launching or under-launching. In addition, there is a lack of intelligent control and remote monitoring functions, requiring construction personnel to operate on-site in real time, which is inefficient. Therefore, there is an urgent need for a jacking device that features multi-stage jacking, horizontal adaptive adjustment, stable anchoring, and intelligent control, to address the shortcomings of existing technologies such as low precision, poor stability, and low level of intelligence, and to ensure the safe, efficient, and precise jacking construction of steel-concrete composite beam bridges. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing steel-concrete composite beam bridge jacking devices, such as low jacking accuracy, lack of horizontal adjustment capability, unstable anchoring, and low level of intelligence. This invention provides an adaptive intelligent jacking device for steel-concrete composite beam bridges, which achieves precise jacking through a multi-stage jacking mechanism, adapts to uneven foundations with a horizontal adjustment mechanism, ensures construction stability with the help of a foundation anchoring mechanism, and combines an intelligent control system to achieve real-time monitoring and intelligent control of the jacking process, thereby improving the accuracy, safety, and efficiency of jacking construction.

[0004] To achieve the above objectives, the present invention provides the following technical solution: An adaptive intelligent jacking device for steel-concrete composite beam bridges includes a bridge beam and a foundation support assembly. The foundation support assembly is equipped with a multi-stage jacking mechanism, a foundation anchoring mechanism, and an intelligent control system. The basic support assembly includes an upper mounting plate and a lower mounting plate. A support column is fixedly connected through the lower mounting plate, and a horizontal adjustment mechanism is connected between the support column and the upper mounting plate. The multi-stage jacking mechanism includes a first-stage jacking mechanism, a second-stage jacking mechanism, and a third-stage fine-tuning mechanism; The top of the upper mounting plate is fixedly provided with a top mounting platform, and a multi-stage pushing mechanism is set on the top mounting platform; The primary jacking mechanism includes a main hydraulic cylinder with a piston rod. The cylinder body of the main hydraulic cylinder is fixed on the top mounting platform, and the piston rod extends horizontally toward the bridge beam. A mounting end plate is fixedly provided at the end of the top mounting platform; The secondary jacking mechanism includes an auxiliary hydraulic cylinder and a linkage mechanism. The cylinder body of the auxiliary hydraulic cylinder is fixed to the mounting end plate by bolts. The linkage mechanism includes an active linkage and a driven linkage. One end of the active linkage is hinged to the telescopic end of the auxiliary hydraulic cylinder, and the other end of the active linkage is hinged to one end of the driven linkage by a connecting pin. The other end of the driven linkage is hinged to the end of the bridge beam by a connecting pin. The three-stage fine-tuning mechanism includes a fine-tuning screw and a fine-tuning handwheel. One end of the fine-tuning screw passes through the mounting end plate and is threadedly connected thereto, and the end of the fine-tuning screw that passes through the mounting end plate is coaxially and fixedly connected to the fine-tuning handwheel. The intelligent control system includes a control host, a data acquisition module, a display operation screen, and a remote monitoring interface. The data acquisition module is connected to pressure sensors, and there are multiple pressure sensors, which are distributed at the contact points between the multi-stage jacking mechanism and the bridge beam.

[0005] In a preferred embodiment of the present invention, the leveling mechanism includes a leveling screw, a leveling handwheel, and a level. The leveling screw is threaded into the support column, and its top end contacts the bottom end of the upper mounting plate. A leveling box, connected to the support column, is fixedly mounted on the top end of the lower mounting plate. A leveling handwheel is located outside the leveling box, and the handwheel is connected to the leveling screw via a worm gear structure. The level is mounted at the center of the upper surface of the upper mounting plate. By rotating the leveling screw with the leveling handwheel, the level height of the upper mounting plate can be finely adjusted. Combined with real-time monitoring by the level, this ensures that the upper mounting plate is level, adapting to uneven foundations and preventing uneven force distribution on the jacking device.

[0006] In a preferred embodiment of the present invention, the foundation anchoring mechanism includes an anchor rod, an anchor plate, and a locking nut. The anchor rod is driven vertically downward into the foundation, and its top passes through pre-drilled holes in the upper and lower mounting plates. The anchor plate is fitted over the portion of the anchor rod located above the upper mounting plate, and the locking nut is tightly fitted to the anchor plate. By embedding the anchor rod deep into the foundation, and in conjunction with the anchor plate and locking nut, the foundation support assembly is firmly fixed to the foundation, preventing displacement of the device during the jacking process and ensuring the stability of the jacking construction.

[0007] In a preferred embodiment of the present invention, a mounting base is fixedly provided on the top mounting platform, and the main hydraulic cylinder is fixedly connected to the mounting base. The mounting base is used to fix the main hydraulic cylinder, ensuring that the main hydraulic cylinder is firmly installed, preventing the main hydraulic cylinder from shaking during the jacking process, and ensuring the jacking stability and reliability of the first-stage jacking mechanism.

[0008] In a preferred embodiment of the present invention, a first guide seat is fixedly provided on the upper mounting plate, and the piston rod passes through the first guide seat and is slidably connected to it. The first guide seat guides the piston rod, ensuring that the piston rod extends and retracts horizontally, preventing piston rod deviation, and improving the pushing accuracy of the first-stage pushing mechanism.

[0009] As a preferred embodiment of the present invention, a bearing is provided at the hinge joint of the active and driven connecting rods. The bearing reduces the hinge friction between the active and driven connecting rods, making the transmission of the linkage mechanism smoother, reducing component wear, extending the service life of the device, and improving the pushing flexibility of the secondary jacking mechanism.

[0010] In a preferred embodiment of the present invention, the mounting end plate is provided with a dial, which is coaxially arranged with the fine-tuning handwheel. The dial can accurately display the adjustment amount of the fine-tuning screw, facilitating construction personnel to accurately control the adjustment range of the three-stage fine-tuning mechanism and further improving the jacking accuracy.

[0011] In a preferred embodiment of the present invention, a second guide seat is provided on the top mounting platform, and the fine-tuning screw passes through the second guide seat and is threadedly connected to it. The second guide seat guides and fixes the fine-tuning screw, ensuring smooth rotation of the fine-tuning screw, preventing screw deviation during fine-tuning, and ensuring the adjustment accuracy of the three-stage fine-tuning mechanism.

[0012] As a preferred embodiment of the present invention, an anti-detachment ring is fixedly provided at the bottom of the upper mounting plate. The anti-detachment ring is located on the top outer side of the leveling screw, and a gap is provided between the anti-detachment ring and the leveling screw.

[0013] This invention offers the following advantages: The basic support components provide stable support for the entire device, while the horizontal adjustment mechanism adaptively adjusts the horizontal state of the upper mounting plate to adapt to foundations with varying flatness, preventing uneven stress and reducing construction safety hazards. The multi-stage jacking mechanism combines primary, secondary, and tertiary jacking stages. The primary jacking stage enables main jacking, the secondary stage assists in adjusting the jacking force and direction, and the tertiary stage allows for precise adjustment, significantly improving jacking accuracy and ensuring the bridge beam is accurately pushed to its design position. The foundation anchoring mechanism firmly fixes the device to the foundation, preventing displacement during jacking and ensuring construction stability. The intelligent control system collects jacking pressure data in real time via pressure sensors, transmits the data to the control host via a data acquisition module, displays relevant data on the operation screen, and provides remote monitoring via a remote monitoring interface, allowing construction personnel to monitor the jacking status in real time and improving construction efficiency and safety. The entire device has a reasonable structure, is easy to operate, highly adaptive, and highly intelligent, making it widely applicable to the jacking construction of steel-concrete composite beam bridges. It overcomes many shortcomings of existing jacking devices and has significant engineering application value. Attached Figure Description

[0014] Figure 1 A schematic diagram of the adaptive intelligent jacking device used in the operation of a steel-concrete composite beam bridge.

[0015] Figure 2 This is a schematic diagram of the level in an adaptive intelligent jacking device for steel-concrete composite beam bridges.

[0016] Figure 3 This is a three-dimensional structural diagram of the right side of the multi-stage jacking mechanism in an adaptive intelligent jacking device for steel-concrete composite beam bridges.

[0017] Figure 4 This is a three-dimensional structural diagram of the right side of the multi-stage jacking mechanism in an adaptive intelligent jacking device for steel-concrete composite beam bridges.

[0018] Figure 5 This is a schematic diagram of the horizontal adjustment mechanism in an adaptive intelligent jacking device for steel-concrete composite beam bridges.

[0019] Figure 6 This is a flowchart of the intelligent control system in an adaptive intelligent jacking device for steel-concrete composite beam bridges.

[0020] In the diagram: 1. Upper mounting plate; 2. Lower mounting plate; 3. Support column; 4. Horizontal adjustment box; 5. Anchor bolt; 6. Anchor plate; 7. Locking nut; 8. Mounting end plate; 9. Level; 10. Top mounting platform; 11. Main hydraulic cylinder; 12. Piston rod; 13. First guide seat; 14. Auxiliary hydraulic cylinder; 15. Active connecting rod; 16. Driven connecting rod; 17. Fine-tuning screw; 18. Fine-tuning handwheel; 19. Dial; 20. Leveling screw; 21. Anti-loosening ring; 22. Horizontal adjustment handwheel; 23. Mounting seat; 24. Second guide seat; 25. Intelligent control system; 26. Control host; 27. Data acquisition module; 28. Display and operation screen; 29. ​​Remote monitoring interface. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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 the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Example 1

[0023] like Figures 1 to 6 This embodiment is applicable to the incremental launching construction of small and medium-sized steel-concrete composite beam bridges. The specific assembly and usage steps are as follows: First, the lower mounting plate 2 is placed horizontally on the construction foundation. A support column 3 is fixedly connected through the lower mounting plate 2, and a leveling mechanism is connected between the support column 3 and the upper mounting plate 1. The leveling screw 20 of the leveling mechanism is threaded into the support column 3, with its top end contacting the bottom end of the upper mounting plate 1. A leveling box 4 connected to the support column 3 is fixedly installed at the top of the lower mounting plate 2. A leveling handwheel 22 is installed on the outside of the leveling box 4, and the leveling handwheel 22 is connected to the leveling screw 20 through a worm gear structure. A level 9 is installed at the center of the upper surface of the upper mounting plate 1. Then, the leveling screw 20 is adjusted by adjusting the leveling handwheel 22, and the upper mounting plate 1 is adjusted to a level state in conjunction with the display of the level 9. An anti-detachment ring 21 is fixedly provided at the bottom of the upper mounting plate 1. The anti-detachment ring 21 is located on the top outer side of the leveling screw 20, and there is a gap between the anti-detachment ring 21 and the leveling screw 20.

[0024] Drive the anchor rod 5 vertically downwards into the foundation, ensuring that the anchor rod 5 penetrates the foundation to a sufficient depth to guarantee anchoring strength; pass the top of the anchor rod 5 through the pre-drilled holes on the upper mounting plate 1 and the lower mounting plate 2, and put the anchor plate 6 on the part of the anchor rod 5 above the upper mounting plate 1, tighten the locking nut 7 so that the locking nut 7 fits tightly with the anchor plate 6, and firmly fix the foundation support assembly to the foundation to prevent the device from shifting during the jacking process.

[0025] A top mounting platform 10 is fixedly installed at the top of the upper mounting plate 1. A mounting base 23 is fixedly installed on the top mounting platform 10. The cylinder body of the main hydraulic cylinder 11 of the first-stage jacking mechanism is fixed on the mounting base 23. The piston rod 12 of the main hydraulic cylinder 11 extends horizontally towards the bridge beam. A first guide seat 13 is fixedly installed on the upper mounting plate 1, so that the piston rod 12 passes through the first guide seat 13 and slides with it to ensure that the piston rod 12 extends and retracts horizontally. An mounting end plate 8 is fixedly installed at the end of the top mounting platform 10. The cylinder body of the auxiliary hydraulic cylinder 14 of the second-stage jacking mechanism is fixed to the mounting end plate 8 with bolts. One end of the active connecting rod 15 of the linkage mechanism is hinged to the extension end of the auxiliary hydraulic cylinder 14. The other end of the active connecting rod 15 is hinged to one end of the driven connecting rod 16 through a connecting pin. The other end of the driven connecting rod 16 is hinged to the end of the bridge beam through a connecting pin. A bearing is installed at the hinge point of the active connecting rod 15 and the driven connecting rod 16 to reduce transmission friction. One end of the fine-tuning screw 17 of the three-stage fine-tuning mechanism passes through the mounting end plate 8 and is threaded to it. A second guide seat 24 is installed on the top mounting platform 10, so that the fine-tuning screw 17 passes through the second guide seat 24 and is threaded to it. A fine-tuning handwheel 18 is coaxially fixedly connected to the end of the fine-tuning screw 17 that passes through the mounting end plate 8. A scale 19 coaxial with the fine-tuning handwheel 18 is installed on the mounting end plate 8 for easy and precise adjustment.

[0026] The control host 26 and display operation screen 28 of the intelligent control system 25 are installed on the top mounting platform 10. The data acquisition module 27 is connected to the control host 26. Multiple pressure sensors are installed at the contact points between the multi-stage jacking mechanism and the bridge beam. The pressure sensors are connected to the data acquisition module 27. The remote monitoring interface 29 is connected to the control host 26 to realize remote data transmission.

[0027] The starting device controls the main hydraulic cylinder 11 of the primary jacking mechanism via the control host 26, extending the piston rod 12 to perform the main jacking of the bridge beam. Based on jacking requirements, the auxiliary hydraulic cylinder 14 of the secondary jacking mechanism is controlled to extend and retract, adjusting the jacking force and direction through the active connecting rod 15 and driven connecting rod 16 to assist in the jacking. When fine adjustment is needed, the fine-tuning handwheel 18 is rotated, and precise fine-tuning is achieved through the fine-tuning screw 17, combined with the scale 19 to control the adjustment range. During the jacking process, pressure sensors collect jacking pressure data in real time, which is transmitted to the control host 26 via the data acquisition module 27. The display screen 28 shows real-time data such as pressure and jacking displacement. Operators can monitor the jacking status in real time through the display screen 28, or remotely monitor it through the remote monitoring interface 29, ensuring accurate and safe jacking construction. Example 2

[0028] This embodiment is applicable to the jacking construction of large steel-concrete composite beam bridges. The structure is basically the same as the embodiment, except that: the support column 3 adopts a high-strength steel support column 3 to improve the foundation support strength; the leveling screw 20 of the horizontal adjustment mechanism adopts a high-strength threaded screw, which has a stronger load-bearing capacity; the main hydraulic cylinder 11 and auxiliary hydraulic cylinder 14 of the multi-stage jacking mechanism adopt large-tonnage hydraulic cylinders to meet the jacking requirements of large beams; the pressure sensor adopts a high-precision sensor to improve the pressure monitoring accuracy; the remote monitoring interface 29 supports simultaneous access of multiple terminals, which facilitates collaborative monitoring by multiple people.

[0029] During assembly and use, the anchoring strength of the foundation anchoring mechanism is strengthened by selecting longer anchor rods 5 and increasing the number of anchor rods 5 to ensure that the device does not shift during the high-tonnage jacking process. During the horizontal adjustment process, the level instrument 9 is calibrated multiple times to ensure the horizontal accuracy of the upper mounting plate 1 and avoid uneven stress on the beam. During the jacking process, the pressure data is monitored in real time by the intelligent control system 25. When the pressure exceeds the preset threshold, the control host 26 automatically issues an early warning and adjusts the jacking force in time to ensure construction safety.

[0030] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adaptive intelligent jacking device for steel-concrete composite beam bridges, comprising bridge beams, characterized in that, It also includes a basic support component, which is equipped with a multi-stage jacking mechanism, a foundation anchoring mechanism and an intelligent control system (25). The basic support assembly includes an upper mounting plate (1) and a lower mounting plate (2). A support column (3) is fixedly connected through the lower mounting plate (2), and a horizontal adjustment mechanism is connected between the support column (3) and the upper mounting plate (1). The multi-stage jacking mechanism includes a first-stage jacking mechanism, a second-stage jacking mechanism, and a third-stage fine-tuning mechanism; The top of the upper mounting plate (1) is fixedly provided with a top mounting platform (10), and a multi-stage pushing mechanism is set on the top mounting platform (10); The primary jacking mechanism includes a main hydraulic cylinder (11), a piston rod (12) on the main hydraulic cylinder (11), the cylinder body of the main hydraulic cylinder (11) is fixed on the top mounting platform (10), and the piston rod (12) extends horizontally toward the bridge beam. A mounting end plate (8) is fixedly provided at the end of the top mounting platform (10); The secondary jacking mechanism includes an auxiliary hydraulic cylinder (14) and a linkage mechanism. The cylinder body of the auxiliary hydraulic cylinder (14) is fixed to the mounting end plate (8) by bolts. The linkage mechanism includes an active linkage (15) and a driven linkage (16). One end of the active linkage (15) is hinged to the telescopic end of the auxiliary hydraulic cylinder (14). The other end of the active linkage (15) is hinged to one end of the driven linkage (16) by a connecting pin. The other end of the driven linkage (16) is hinged to the end of the bridge beam by a connecting pin. The three-stage fine-tuning mechanism includes a fine-tuning screw (17) and a fine-tuning handwheel (18). One end of the fine-tuning screw (17) passes through the mounting end plate (8) and is threadedly connected thereto. The end of the fine-tuning screw (17) passing through the mounting end plate (8) is coaxially fixedly connected to the fine-tuning handwheel (18). The intelligent control system (25) includes a control host (26), a data acquisition module (27), a display operation screen (28), and a remote monitoring interface (29). The data acquisition module (27) is connected to pressure sensors. Multiple pressure sensors are provided, and the multiple pressure sensors are distributed at the contact points between the multi-stage jacking mechanism and the bridge beam.

2. The adaptive intelligent jacking device for steel-concrete composite beam bridges according to claim 1, characterized in that, The leveling mechanism includes a leveling screw (20), an adjusting handwheel, and a level (9). The leveling screw (20) is threaded into the support column (3), and the top end of the leveling screw (20) contacts the bottom end of the upper mounting plate (1). The top end of the lower mounting plate (2) is fixedly provided with a leveling box (4) connected to the support column (3). An adjusting handwheel is provided on the outside of the leveling box (4). The adjusting handwheel and the leveling screw (20) are connected by a worm gear structure. The level (9) is installed at the center of the upper surface of the support base.

3. The adaptive intelligent jacking device for steel-concrete composite beam bridges according to claim 1, characterized in that, The foundation anchoring mechanism includes an anchor rod (5), an anchor plate (6), and a locking nut (7). The anchor rod (5) is driven vertically downward into the foundation. The top of the anchor rod (5) passes through pre-drilled holes in the upper mounting plate (1) and the lower mounting plate (2). The anchor plate (6) is fitted over the portion of the anchor rod (5) located above the upper mounting plate (1). The locking nut (7) is tightly fitted to the anchor plate (6).

4. The adaptive intelligent jacking device for steel-concrete composite beam bridges according to claim 1, characterized in that, The top mounting platform (10) is fixedly provided with a mounting base (23), and the main hydraulic cylinder (11) is fixedly connected to the mounting base (23).

5. The adaptive intelligent jacking device for steel-concrete composite beam bridges according to claim 1, characterized in that, The upper mounting plate (1) is fixedly provided with a first guide seat (13), and the piston rod (12) passes through the first guide seat (13) and is slidably connected to it.

6. The adaptive intelligent jacking device for steel-concrete composite beam bridges according to claim 1, characterized in that, The hinge joint of the active link (15) and the driven link (16) is provided with a bearing.

7. The adaptive intelligent jacking device for steel-concrete composite beam bridges according to claim 1, characterized in that, The mounting end plate (8) is provided with a dial (19), which is coaxially arranged with the fine adjustment handwheel (18).

8. The adaptive intelligent jacking device for steel-concrete composite beam bridges according to claim 1, characterized in that, The top mounting platform (10) is provided with a second guide seat (24), and the fine-tuning screw (17) passes through the second guide seat (24) and is threadedly connected to it.

9. The adaptive intelligent jacking device for steel-concrete composite beam bridges according to claim 1, characterized in that, The bottom of the upper mounting plate (1) is fixedly provided with an anti-detachment ring (21). The anti-detachment ring (21) is located on the top outer side of the leveling screw (20), and there is a gap between the anti-detachment ring (21) and the leveling screw (20).

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