Cantilever bridge fabrication machine

Abstract

The utility model relates to the technical field of bridge fabrication machines, in particular to a cantilever bridge fabrication machine which comprises a main truss system main beam, a rear anchoring system, a deviation rectifying system, a main truss system C-shaped frame, a bottom basket, a walking system, a safety protection system, an outer mold demolding system, a mold plate system and a suspension system. According to the cantilever bridge fabrication machine, the relative position between the cantilever bridge fabrication machine and a bridge can be adjusted and corrected; chain transmission is adopted for research and development of the walking system, flexibility is higher, transmission is stable, stress is large, and installation and maintenance are convenient; the outer mold demolding system is driven by a vertical elevator, the precision is high, the output is stable, the synchronism is good, and a fine adjustment mechanism is reserved. The cantilever bridge fabrication machine is high in construction efficiency and small in safety risk, reduces the operation difficulty of workers, and improves the equipment stability. And the production and construction efficiency and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of bridge building machine technology, specifically a cantilever bridge building machine. Background Technology

[0002] Cantilever bridge construction machines are mainly used in bridge construction, especially in the construction of cantilever cast-in-place continuous beams. By using a cantilever structure, they effectively solve problems such as complex structures, cumbersome assembly and disassembly, and significant safety hazards associated with traditional hanging basket construction.

[0003] The cantilever bridge-building machine consists of a main truss system, formwork system, safety protection system, suspension system, traveling system, rear anchor system, hydraulic system, intelligent control system, and safety monitoring system. Utilizing AI algorithms and IoT technology, it achieves fully automated control of the entire construction process, supporting remote operation and multi-device collaboration. It effectively solves the challenges of high-altitude risks, efficiency bottlenecks, and precision issues in traditional bridge construction. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a cantilever bridge-building machine that improves construction efficiency, reduces safety risks, and enhances construction quality.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cantilever bridge building machine, characterized in that it includes a main truss system main beam, a rear anchor system, a correction system, a main truss system C-shaped frame, a bottom basket, a walking system, a safety protection system, an outer mold demolding system, a template system, and a suspension system;

[0008] The template system includes inner mold, outer mold, bottom mold, and end mold.

[0009] The suspension system is used to suspend and fix the bottom basket, inner formwork, and outer formwork to the C-frame of the main truss system;

[0010] The correction system includes a main beam connecting plate fixedly installed on the main beam of the main truss system. The bottom of the main beam connecting plate is provided with a main beam lifting part and a main beam lateral movement part from top to bottom. The main beam lifting part and the main beam lateral movement part respectively include a lifting cylinder and a lateral movement cylinder. The free end of the lateral movement cylinder is also fixedly installed with a sliding base.

[0011] The walking system includes counter-pressure wheels and load-bearing wheels distributed vertically. Both the counter-pressure wheels and load-bearing wheels are rotatably connected to the main beam of the main truss system. The system also includes a drive assembly for driving the load-bearing wheels to rotate. The drive assembly includes a walking drive motor, and the walking drive motor is connected to the load-bearing wheels via a sprocket and chain drive.

[0012] The outer mold demolding system includes a vertical lift and an adjusting screw, and also includes a transverse movement mechanism fixedly installed on the C-shaped frame of the main truss system. The vertical lift is vertically slidably fitted on the transverse movement mechanism, and the adjusting screw is threadedly connected to the transverse movement mechanism, with the bottom of the vertical lift being rotatably connected to the adjusting screw.

[0013] Preferably, the rear anchoring system presses down on the main beam of the main truss system and anchors it to the already cast beam segment.

[0014] Preferably, the base basket includes a lower crossbeam, a bottom longitudinal beam, a bottom formwork, and a construction operation platform, and is suspended on the C-shaped frame of the main truss system.

[0015] Preferably, the safety protection system includes guardrails, ladders, and protective operating platforms.

[0016] Preferably, the main girder of the main truss system is composed of welded steel plates of different thicknesses.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a cantilever bridge building machine, which has the following advantages:

[0019] This cantilever bridge-building machine can adjust and correct the relative position between the machine and the bridge. Its walking system uses chain drive, which is more flexible, stable, has high load-bearing capacity, and is easy to install and maintain. The outer mold demolding system is driven by a vertical lift, ensuring high precision, stable output, good synchronization, and a pre-installed fine-tuning mechanism. This cantilever bridge-building machine offers advantages such as high construction efficiency, low safety risk, reduced operator difficulty, and improved equipment stability. It also enhances the efficiency and quality of production and construction. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall right-side structure of this utility model;

[0022] Figure 3 This is a top view of the overall planar structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the overall front view of the present invention.

[0024] Figure 5 This is a schematic diagram of the structure of the correction system of this utility model;

[0025] Figure 6 This is a schematic diagram of the walking system of this utility model.

[0026] The attached diagram is labeled as follows: A, Main truss system main beam; B, Rear anchor system; C, Correction system; C1, Main beam connecting plate; C2, Main beam lifting section; C3, Main beam lateral movement section; C4, Lifting cylinder; C5, Lateral movement cylinder; C6, Sliding base; D, Main truss system C-frame; E, Base basket; F, Traveling system; F1, Counter-pressure roller; F2, Load-bearing roller; F3, Sprocket and chain; G, Safety protection system; H, Outer mold demolding system; H1, Vertical lifting machine; H2, Adjusting screw; I, Template system; I1, Inner mold; I2, Outer mold; I3, Bottom mold; J, Suspension system. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0028] Please see Figure 1-6 A cantilever bridge-building machine, characterized in that it includes a main truss system main beam A, a rear anchor system B, a correction system C, a main truss system C-shaped frame D, a bottom basket E, a walking system F, a safety protection system G, an outer formwork demolding system H, a template system I, and a suspension system J;

[0029] Template system I includes inner mold I1, outer mold I2, bottom mold I3, and end molds.

[0030] The suspension system J is used to suspend and fix the bottom basket E, inner mold I1 and outer mold I2 on the main truss system C-shaped frame D; so that the bottom basket E, inner mold I1 and outer mold I2 move synchronously with the main beam A of the main truss system.

[0031] The correction system C includes a main beam connecting plate C1 fixedly installed on the main beam A of the main truss system. From top to bottom, the bottom of the main beam connecting plate C1 has a main beam lifting section C2 and a main beam lateral movement section C3. The main beam lifting section C2 and the main beam lateral movement section C3 each include a lifting cylinder C4 and a lateral movement cylinder C5, respectively. A sliding base C6 is also fixedly installed at the free end of the lateral movement cylinder C5. When adjustment is needed, the sliding base C6 contacts the ground, and the main beam lifting section C2 lifts the main beam A of the main truss system, raising it off the ground and reducing friction. The main beam lifting section C2 is driven by the lifting cylinder C4 and controlled by an automated operating system. The main beam lateral movement section C3 then moves left and right, changing the posture of the main beam. The main beam lateral movement section C3 is driven by the lateral movement cylinder C5 and controlled by an automated operating system. This achieves the adjustment of the relative position between the cantilever bridge-building machine and the bridge.

[0032] The traveling system F includes vertically distributed counter-pressure rollers F1 and load-bearing rollers F2, both rotatably connected to the main beam A of the main truss system. It also includes a drive assembly that drives the load-bearing rollers F2 to rotate. This drive assembly includes a traveling drive motor, which pulls the main beam A via chain drive. Support is provided by the load-bearing rollers F2, and anti-tipping is achieved by the counter-pressure rollers F1. Due to the sprocket and chain drive F3, the transmission is stable, the chain has high load-bearing capacity, and is more flexible. Even when the traveling system F disengages from the main beam A of the main truss system, the sprocket and chain F3 remain engaged, unaffected by the state of the main beam A and the traveling system F, facilitating installation and maintenance. Furthermore, it includes a sprocket tensioning assembly for easy tension adjustment of the sprockets, improving the stability of the sprocket and chain drive.

[0033] The outer mold release system H includes a vertical lift H1 and an adjusting screw H2, as well as a lateral movement mechanism fixedly mounted on the C-shaped frame D of the main truss system. The vertical lift H1 is vertically slidably engaged with the lateral movement mechanism, and the adjusting screw H2 is threadedly connected to the lateral movement mechanism, with the bottom of the vertical lift H1 rotatably connected to the adjusting screw H2. The vertical lift H1 drives the outer mold I2 template. After being lifted into position, the adjusting screw H2 is manually adjusted for leveling. Concrete is then poured. The worm gear output is stable and highly precise, controlled by an automated system. Manual adjustments require only fine-tuning. It may also include an outer mold release system.

[0034] Specifically, the rear anchor system B presses down on the main girder A of the main truss system and anchors it to the already cast beam segment. This fixes the main girder to the bridge and prevents the bridge-building machine from tipping over.

[0035] Specifically, the bottom basket E includes a lower crossbeam, a bottom longitudinal beam, a bottom formwork, and a construction operation platform, and is suspended on the C-shaped frame D of the main truss system.

[0036] Specifically, the safety protection system G includes guardrails, ladders, and protective operating platforms. Construction workers can operate on the platforms.

[0037] Specifically, the main girder A of the main truss system is composed of steel plates of different thicknesses welded together.

[0038] This cantilever bridge-building machine can adjust the relative position between the bridge-building machine and the bridge, enabling it to move forward, backward, and laterally as a whole.

[0039] The lifting and lateral movement of the main truss uses hydraulic cylinders as the power unit, and special telescopic outriggers and lateral sliding blocks are used to adjust the position and attitude of the main truss.

[0040] The walking system is driven by a hydraulic motor and sprocket chain transmission, allowing for walking without the need to replace the rail beam. It features smooth transmission, high traction, convenient installation and maintenance, and high efficiency.

[0041] The external formwork adjustment system uses a geared motor and vertical drive to adjust the formwork height; it uses a horizontal cylinder and slider mechanism to open and close the formwork, which has high precision and good synchronization. At the same time, a fine-tuning mechanism is reserved so that the formwork height can be adjusted according to the construction of different sections.

[0042] The inner mold uses a hydraulic cylinder to adjust its overall width and opening / closing dimensions. The overall elevation is adjusted using a height adjustment mechanism for the base basket.

[0043] The rear anchoring system uses a spreader beam, slings, distribution beams, wedges, and 40Cr rods to anchor to the already poured beam segment, ensuring the safety of cantilever casting construction. Simultaneously, the rear anchor C-shaped frame is equipped with safety devices, providing double protection against overturning.

[0044] This cantilever bridge-building machine has advantages such as low cost, labor saving, reduced operator difficulty, improved equipment stability, and increased production and construction efficiency and quality.

[0045] Operating steps:

[0046] 1. Assemble the bridge-building machine and install it anchored on block 0;

[0047] 2. Begin pouring one section of concrete. Once this section reaches the design requirements, operate the outer formwork release system H and the inner formwork release system to detach the inner formwork I1 and outer formwork I2 from the concrete surface.

[0048] 3. Adjust the suspension system J to detach from the concrete; the first section of pouring is now complete.

[0049] 4. Correction system C begins jacking up the main girder A of the main truss system. The rear anchor system B is removed, and the relative position of the main girder A of the main truss system and the bridge is adjusted.

[0050] 5. The walking system F, relying on the counter-pressure wheel F1, the load-bearing wheel F2 and the sprocket and chain F3, begins to move forward along the main beam;

[0051] 6. After the traveling system F reaches its position, the correction system C begins to retract, and the main girder A of the main truss system moves downward.

[0052] 7. The traveling system's F-type motor, driven by sprocket and chain F3, drives the main girder A of the main truss system, causing the outer formwork I2 to move forward.

[0053] 8. After the main girder A of the main truss system is in place, install the rear anchor system B, lift out the inner formwork I1, and start the second section pouring. Then repeat the process in sequence.

[0054] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments" used in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0055] It should be readily understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0056] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cantilever bridge-building machine, characterized in that: It includes the main truss system main beam (A), rear anchor system (B), correction system (C), main truss system C-shaped frame (D), bottom basket (E), walking system (F), safety protection system (G), external formwork demolding system (H), formwork system (I) and suspension system (J); The template system (I) includes an inner mold (I1), an outer mold (I2), a bottom mold (I3), and end molds; The suspension system (J) is used to suspend and fix the bottom basket (E), inner formwork (I1) and outer formwork (I2) on the main truss system C-frame (D); The correction system (C) includes a main beam connecting plate (C1) fixedly installed on the main beam (A) of the main truss system. The bottom of the main beam connecting plate (C1) is provided with a main beam lifting part (C2) and a main beam lateral movement part (C3) from top to bottom. The main beam lifting part (C2) and the main beam lateral movement part (C3) respectively include a lifting cylinder (C4) and a lateral movement cylinder (C5). The free end of the lateral movement cylinder (C5) is also fixedly installed with a sliding base (C6). The walking system (F) includes a counter-pressure wheel (F1) and a load-bearing wheel (F2) distributed vertically. Both the counter-pressure wheel (F1) and the load-bearing wheel (F2) are rotatably connected to the main beam (A) of the main truss system. The system also includes a drive assembly for driving the load-bearing wheel (F2) to rotate. The drive assembly includes a walking drive motor. The walking drive motor and the load-bearing wheel (F2) are connected by a sprocket and chain (F3) for transmission. The outer mold demolding system (H) includes a vertical lift (H1) and an adjusting screw (H2), and also includes a transverse movement mechanism fixedly installed on the C-shaped frame (D) of the main truss system. The vertical lift (H1) is vertically slidably fitted on the transverse movement mechanism. The adjusting screw (H2) is threadedly connected to the transverse movement mechanism, and the bottom of the vertical lift (H1) is rotatably connected to the adjusting screw (H2).

2. The cantilever bridge-building machine according to claim 1, characterized in that: The rear anchor system (B) presses down on the main girder (A) of the main truss system and anchors it to the cast-in-place beam segment.

3. The cantilever bridge-building machine according to claim 2, characterized in that: The base basket (E) includes a lower crossbeam, a bottom longitudinal beam, a bottom formwork, and a construction operation platform, and is suspended on the C-shaped frame (D) of the main truss system.

4. The cantilever bridge-building machine according to claim 3, characterized in that: The safety protection system (G) includes guardrails, ladders, and protective operating platforms.

5. The cantilever bridge-building machine according to claim 4, characterized in that: The main girder (A) of the main truss system is composed of welded steel plates of different thicknesses.

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