Novel intelligent bridge fabrication machine for bridge cantilever construction

Abstract

The invention discloses a novel intelligent bridge fabrication machine for bridge cantilever construction, which comprises a bearing system, a walking system, a template system, a spraying maintenance system and a platform protection system, and is characterized in that the bearing system is used for transmitting a load of cantilever pouring to a poured beam section through a bridge fabrication machine main beam; the walking system is used for pushing the bearing system to move on a poured beam section, the formwork system is used for forming a pouring area, the spraying maintenance system is used for conducting spraying maintenance on the poured beam section, and the platform protection system is used for protecting constructors. According to the intelligent bridge fabrication machine, the structure is simple, an ascending structure and a distributed walking mode are adopted, the number of embedded structures is small, the construction time is shortened, structural stress is definite, and deformation of the bridge fabrication machine is small; and meanwhile, the construction efficiency is high, a hydraulic rail clamping type synchronous pushing system is adopted for walking of the bridge fabrication machine, the traction force and the traction speed of the bridge fabrication machine can be adjusted, the walking time is short, and in-place accuracy is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of cantilever casting construction of continuous beam bridge segments, and in particular to a new intelligent bridge-building machine for cantilever construction of bridges. Background Art

[0002] The diamond-shaped gantry is used for cantilever casting of bridges. It features a simple structure and well-defined load-bearing characteristics. It consists primarily of a diamond truss, a suspension system, a travel system, a formwork system, and a tensioning platform. The diamond truss is the primary load-bearing structure of the gantry. The gantry load is transmitted to the upper node of the main truss via the front sling (or suspender rod), while the rear lower node is anchored to the segmental beam via a rear anchor.

[0003] The Wuxin cantilever bridge-building machine adopts a bottom-support structure, mainly including load-bearing rods, formwork system, automatic control system, intelligent monitoring system, spray curing system, platform protection system, etc. The main load-bearing structure is the main truss under the box girder flange, which supports the cantilever concrete pouring load through the front support boom and rear reaction wheel.

[0004] However, the diamond-shaped hanging basket structure has a high center of gravity, a large number of reserved holes, a high risk of overturning, low template demoulding efficiency, long travel time, many manual operation steps, and a low degree of intelligence.

[0005] The Wuxin cantilever bridge-building machine has a heavy structure with a large weight ratio to the continuous beam segment. The reaction force of the structural support is large, the left and right synchronization of movement is poor, the deformation at the outer formwork flange is large, and the linear shape of the continuous beam segment is difficult to control. Summary of the Invention

[0006] The purpose of this application is to provide a new type of intelligent bridge-building machine for bridge cantilever construction to improve the above-mentioned problems. This application has the advantages of low center of gravity, simple structure, small number of reserved holes, high safety factor, high degree of intelligence, and high construction efficiency. It integrates multiple high-end technologies such as hydraulic transmission, intelligent control, and information monitoring. It consists of a load-bearing system, a traveling system, a template system, an automatic control system, an intelligent monitoring system, a spray maintenance system, and a platform protection system.

[0007] This application provides a new intelligent bridge-building machine for cantilever bridge construction, which adopts the following technical solutions: A new intelligent bridge-building machine for cantilever construction of bridges includes a load-bearing system, a traveling system, a formwork system, a spray maintenance system, and a platform protection system. The load-bearing system is used to transfer the load of cantilever casting to the cast beam section through the main beam of the bridge-building machine, the traveling system is used to push the load-bearing system to move on the cast beam section, the formwork system is used to form a casting area, the spray maintenance system is used to spray and maintain the cast beam section, and the platform protection system is used to protect construction personnel.

[0008] By adopting the above technical solution, the load of cantilever casting is transferred to the cast beam section through the main beam of the bridge-building machine through the load-bearing system, and the load-bearing system is pushed to move on the cast beam section through the traveling system. The formwork system is used to form a casting area, and the cast beam section is sprayed and cured by the spray curing system. The construction personnel are protected by the platform protection system, thereby realizing automated casting and curing and improving construction efficiency.

[0009] Optionally, the spray curing system is composed of a central control system, a PLC execution system, a water tank water pressure system, a pressure and temperature feedback system, and a piping system. It can automatically spray according to the temperature conditions of the cast beam sections to achieve automatic curing of continuous beam sections.

[0010] Optionally, the load-bearing system includes a main beam and an anchoring assembly and a hanging system group connected to the main beam, the hanging system group is used to connect to the formwork system, the anchoring assembly includes a rear anchor rod and a reaction top, the rear anchor rod and the reaction top are both installed on the main beam, the rear anchor rod is used to connect to the embedded parts on the cast beam end, and the reaction top is used to abut the top surface of the cast beam end.

[0011] Through the above technical solution, the cooperation between the rear anchor rod and the reaction top makes it easier to anchor the main beam to the cast beam section, thereby improving stability.

[0012] Optionally, the running system includes a running track, a rail clamping hydraulic pusher, a hydraulic telescopic support leg, and a support leg drive motor. The running track is installed on the main beam and can slide relative to the main beam. One end of the rail clamping hydraulic pusher is connected to the main beam, and the other end is connected to the running track. The hydraulic telescopic support leg is connected to the running track, and the support leg drive motor is installed on the hydraulic telescopic support leg for controlling the extension and retraction of the hydraulic telescopic support leg.

[0013] Through the above technical solution, by setting up running rails, rail clamping hydraulic jacking and hydraulic telescopic legs, the main beam can be moved without installing guide rails on the cast beam section, reducing the number of embedded holes and increasing the safety factor.

[0014] Furthermore, the template system includes side molds, inner molds, bottom molds and a hydraulic drive module. The hydraulic drive module is connected to the side molds, inner molds and bottom molds to achieve fully automatic horizontal and vertical adjustment of the side molds and bottom molds, and at the same time achieve the automatic closing and retracting function of the inner mold.

[0015] Optionally, the inner mold includes an inner guide beam, an inner mold lateral adjustment cylinder, an inner main frame, an inner side frame and a mold-closing hydraulic cylinder. The inner guide beam is connected to the main beam through a sling. Two inner mold lateral adjustment cylinders are provided and are fixedly mounted on the inner guide beam. The movable ends of the two inner mold lateral adjustment cylinders are respectively fixedly connected to an inner main frame. The two inner main frames are respectively hinged to an inner side frame. Two mold-closing hydraulic cylinders are provided and are both hinged to the inner main frame. The movable ends of the two mold-closing hydraulic cylinders are respectively connected to an inner side frame. Wooden formwork is provided under the two inner frames.

[0016] Through the above technical solution, automatic mold closing and mold clamping can be achieved through the cooperation of the inner membrane lateral adjustment cylinder and the mold closing hydraulic cylinder.

[0017] Optionally, an adjusting rod is fixedly connected to the bottom of the inner guide beam, a baffle is fixedly connected to the bottom of the adjusting rod, an adjusting plate is sleeved on the adjusting rod, a pressure rod is fixedly connected to the adjusting plate, the bottom of the pressure rod is connected to the wooden formwork, a supporting rod is connected to the side wall of the inner frame, and the inner frame can switch between a retracted state and an extended state; when the inner frame is in the extended state, the adjusting plate abuts against the top of the baffle, and the wooden formwork is in a working state; when the inner frame is in the retracted state, the supporting rod lifts the adjusting plate, so that the wooden formwork is in a demolded state.

[0018] By adopting the above technical solution and setting the support rod and the adjustment plate, the wooden formwork can be automatically demoulded when the inner frame is folded. At the same time, when the inner frame is closed, the wooden formwork also automatically enters the closed state, realizing automatic folding and closing of the wooden formwork, reducing the manual operation of the operator and improving the construction efficiency.

[0019] Optionally, the adjusting rod is threadedly connected to a limit plate, and a compression spring is sleeved on the adjusting rod, one end of the compression spring abuts against the adjusting plate, and the other end abuts against the limit plate.

[0020] By adopting the above technical solution and arranging the compression spring, the wooden template can be made more reliable even in the mold closing state.

[0021] Optionally, the automatic control system is composed of a calculation module, a data acquisition module, and a hydraulic drive module, and can realize pump station control, bridge-building machine travel control, posture control, boom adjustment, template adjustment, and counter-thrust force control functions.

[0022] Optionally, the intelligent monitoring system can monitor the main beam, boom stress, wind force and speed, outrigger load, and jack travel.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. The intelligent bridge-building machine has a simple structure, adopts an upward structure, a distributed walking method, and less pre-buried structure, which shortens the construction time. The structural force is clear and the deformation of the bridge-building machine is small.

[0024] 2. The intelligent bridge-building machine's box-type main beam has high rigidity, small elastic deformation, low center of gravity, good stability, and high structural strength. The safety protection platform is fully enclosed and uses information technology to conduct all-round monitoring during the construction process. The intelligent voice alarm system enhances on-site safety management. The bridge-building machine is assembled on the ground and hoisted as a whole, reducing the risks of high-altitude hoisting operations.

[0025] 3. The intelligent bridge-building machine has a high degree of automation. Its travel is electrically controlled, resulting in a low failure rate and a high turnover rate. The template adjustment system uses a hydraulic adjustment control system, enabling automatic template adjustment and reducing manual operation. The machine's status is monitored in real time during construction to ensure its safety.

[0026] The intelligent bridge-building machine has high construction efficiency. The bridge-building machine adopts a hydraulic rail-clamped synchronous pushing system for travel. Its traction force and traction speed are adjustable, the travel time is short, and the positioning is precise; the template adopts a digital mold adjustment system, using a transverse motor and a hydraulic jack to achieve rapid mold adjustment; the bridge-building machine adopts an intelligent spray maintenance system to ensure the quality of concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a side view schematic diagram of an overall new intelligent bridge-building machine for cantilever bridge construction in the present invention.

[0028] Figure 2 It is a main schematic diagram of the entirety of a new intelligent bridge-building machine for cantilever bridge construction in the present invention.

[0029] Figure 3 Schematic diagram of the anchoring assembly in the present invention.

[0030] Figure 4 Schematic diagram of the running system in the present invention.

[0031] Figure 5 Schematic diagram of the inner mold in the present invention.

[0032] Figure 6 Schematic diagram of the outer mold in the present invention.

[0033] In the figure, 1. load-bearing system; 11. main beam; 111. fixed column crane; 12. hanging system group; 13. anchoring assembly; 131. rear anchor rod; 132. reaction jack; 2. formwork system; 21. inner guide beam; 22. inner mold lateral adjustment cylinder; 23. inner main frame; 231. inner side frame; 232. mold retraction hydraulic cylinder; 233. adjustment rod; 234. baffle; 235. pressure rod; 236. wooden formwork; 237. support rod; 238. limit plate; 239. compression spring; 24. side crossbeam; 241. side mold lateral movement cylinder; 242. side mold lifting cylinder; 243. side plate; 25. bottom beam; 26. bottom mold; 3. running system; 31. running track; 32. rail clamping hydraulic jacking; 33. hydraulic telescopic support legs. DETAILED DESCRIPTION

[0034] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0035] In the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be broadly understood, for example, to mean fixed, removable, or integral; mechanically or electrically connected; directly or indirectly through an intermediary; or internally connected between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Example 1 A new type of intelligent bridge construction machine for bridge cantilever construction, Figure 1 and Figure 2, including a load-bearing system 1, a traveling system 3, a formwork system 2, a spray curing system, a platform protection system, an automatic control system and an intelligent monitoring system. The load-bearing system 1 is used to transfer the cantilever pouring load to the already cast beam section through the main beam 11 of the bridge-building machine, the traveling system 3 is used to push the load-bearing system 1 to move on the already cast beam section, the formwork system 2 is used to form a pouring area, the spray curing system is used to spray curing the already cast beam section, and the platform protection system is used to protect construction personnel. The load of cantilever pouring is transferred to the already cast beam section through the main beam 11 of the bridge-building machine through the load-bearing system 1, the traveling system 3 pushes the load-bearing system 1 to move on the already cast beam section, the formwork system 2 is used to form a pouring area, the spray curing system is used to spray curing the already cast beam section, and the platform protection system is used to protect construction personnel, thereby realizing automated pouring and curing and improving construction efficiency.

[0037] Specifically, the spray curing system consists of a central control system, a PLC execution system, a water tank water pressure system, a pressure and temperature feedback system, and a pipeline system. It can automatically spray according to the temperature conditions of the cast beam sections, thereby realizing automatic curing of continuous beam sections.

[0038] The automatic control system consists of an operation module, a data acquisition module, and a hydraulic drive module, and can realize pump station control, bridge-building machine travel control, posture control, boom adjustment, template adjustment, and counter-thrust force control functions.

[0039] The intelligent monitoring system can monitor the main beam 11, boom stress, wind force and speed, outrigger load, and jack travel.

[0040] Reference Figures 1 to 3 The load-bearing system 1 includes a main beam 11, an anchor assembly 13 connected to the main beam 11, and a suspension system assembly 12. The suspension system assembly 12 is used to connect to the formwork system 2. The anchor assembly 13 includes a rear anchor rod 131 and a reaction rod 132. Both the rear anchor rod 131 and the reaction rod 132 are installed on the main beam 11. The rear anchor rod 131 is used to connect with the embedded parts on the cast beam end, and the reaction rod 132 is used to abut the top surface of the cast beam end. The cooperation between the rear anchor rod 131 and the reaction rod 132 facilitates the anchoring of the main beam 11 to the cast beam section, improving stability.

[0041] Reference Figure 3The running system 3 includes a running track 31, a hydraulic jacking device for clamping the rails 32, hydraulic telescopic legs 33, and a leg drive motor. The running track 31 is mounted on the main beam 11 and can slide relative to the main beam 11. One end of the hydraulic jacking device for clamping the rails 32 is connected to the main beam 11, and the other end is connected to the running track 31. The hydraulic telescopic legs 33 are connected to the running track 31. The leg drive motor is mounted on the hydraulic telescopic legs 33 and is used to control the extension and retraction of the hydraulic telescopic legs 33. By setting up the running track 31, the hydraulic jacking device for clamping the rails 32, and the hydraulic telescopic legs 33, the main beam 11 can be moved without installing guide rails on the cast beam section, reducing the number of pre-buried holes and improving the safety factor.

[0042] The template system 2 includes side molds, inner molds, bottom molds 26 and a hydraulic drive module. The hydraulic drive module is connected to the side molds, inner molds and bottom molds 26 to achieve fully automatic horizontal and vertical adjustment of the side molds and bottom molds 26, and at the same time realize the automatic closing and retracting function of the inner mold.

[0043] Reference Figure 5 The inner mold includes an inner guide beam 21, an inner mold lateral adjustment cylinder 22, an inner main frame 23, an inner side frame 231, and a mold-closing hydraulic cylinder 232. The inner guide beam 21 is connected to the main beam 11 via a sling. Two inner mold lateral adjustment cylinders 22 are provided, and both are fixedly mounted on the inner guide beam 21. The movable ends of the two inner mold lateral adjustment cylinders are respectively fixedly connected to an inner main frame 23. The two inner main frames 23 are each hinged to an inner side frame 231. Two mold-closing hydraulic cylinders 232 are provided, and both are hinged to the inner main frame 23. The movable ends of the two mold-closing hydraulic cylinders 232 are respectively connected to an inner side frame 231. A wooden template 236 is provided below the two inner frames 231. The cooperation between the inner mold lateral adjustment cylinder and the mold-closing hydraulic cylinder 232 can achieve automatic mold closing and clamping.

[0044] An adjusting rod 233 is fixedly connected to the bottom of the inner guide beam 21, and a baffle 234 is fixedly connected to the bottom of the adjusting rod 233. An adjusting plate is sleeved on the adjusting rod 233, and a pressure rod 235 is fixedly connected to the adjusting plate. The bottom of the pressure rod 235 is connected to the wooden template 236. A supporting rod 237 is connected to the side wall of the inner frame 231, and the inner frame 231 can switch between a retracted state and an extended state; when the inner frame 231 is in the extended state, the adjusting plate abuts against the top of the baffle 234, and the wooden template 236 is in a working state; when the inner frame 231 is in the retracted state, the supporting rod 237 lifts the adjusting plate, so that the wooden template 236 is in a demoulding state. Through the setting of the support rod 237 and the adjustment plate, the wooden template 236 can be automatically demoulded when the inner frame 231 is folded. At the same time, when the inner frame 231 is closed, the wooden template 236 also automatically enters the closed state, realizing the automatic folding and closing of the wooden template 236, reducing the manual operation of the operator and improving the construction efficiency.

[0045] In addition, the adjusting rod 233 is threadedly connected to the limit plate 238, and a compression spring 239 is sleeved on the adjusting rod 233. One end of the compression spring 239 abuts against the adjusting plate, and the other end abuts against the limit plate 238. The provision of the compression spring 239 can make the wooden template 236 more reliable even in the mold closing state.

[0046] Reference Figure 6 The side mold includes a side cross beam 24, a side mold transverse movement cylinder 241, a side mold lifting cylinder 242 and a side plate 243. The side cross beam 24 is fixedly connected to the main beam 11. The side mold transverse movement cylinder 241 and the side mold lifting cylinder 242 are both fixedly connected to the side cross beam 24. The side plate 243 can move up and down and left and right relative to the side cross beam 24. The movable ends of the side mold transverse movement cylinder 241 and the side mold lifting cylinder 242 are connected to the side plate 243 and can move relative to the side plate 243 to control the up and down movement and left and right movement of the side mold to realize mold retraction and closing.

[0047] A bottom beam 25 is fixedly connected below the side cross beam 24 , and a bottom mold 26 is installed on the bottom beam 25 .

[0048] Two column-type cranes 111 are also fixedly connected to the main beam 11 .

[0049] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A new intelligent bridge-building machine for bridge cantilever construction, characterized in that: The invention comprises a load-bearing system (1), a travel system (3), a formwork system (2), a spray curing system and a platform protection system. The load-bearing system (1) is used to transfer the load of cantilever casting to the cast beam section through the main beam (11) of the bridge-building machine. The travel system (3) is used to push the load-bearing system (1) to move on the cast beam section. The formwork system (2) is used to form a casting area. The spray curing system is used to perform spray curing on the cast beam section. The platform protection system is used to protect construction personnel.

2. According to claim 1, a new intelligent bridge-building machine for bridge cantilever construction is characterized in that: The spray curing system is composed of a central control system, a PLC execution system, a water tank water pressure system, a pressure and temperature feedback system, and a pipeline system. It can automatically spray according to the temperature of the cast beam section to achieve automatic curing of the continuous beam section.

3. According to claim 1, a new intelligent bridge-building machine for bridge cantilever construction is characterized in that: The load-bearing system (1) comprises a main beam (11), an anchoring assembly (13) and a hanging system group (12) connected to the main beam (11); the hanging system group (12) is used to be connected to the formwork system (2); the anchoring assembly (13) comprises a rear anchor rod (131) and a reaction top (132); the rear anchor rod (131) and the reaction top (132) are both installed on the main beam (11); the rear anchor rod (131) is used to be connected to the embedded part on the end of the cast beam; the reaction top (132) is used to abut against the top surface of the end of the cast beam.

4. According to claim 2, a new intelligent bridge-building machine for bridge cantilever construction is characterized in that: The running system (3) comprises a running track (31), a track-clamping hydraulic pusher (32), a hydraulic telescopic outrigger (33), and an outrigger driving motor. The running track (31) is mounted on a main beam (11) and is capable of sliding relative to the main beam (11). One end of the track-clamping hydraulic pusher (32) is connected to the main beam (11), and the other end is connected to the running track (31). The hydraulic telescopic outrigger (33) is connected to the running track (31). The outrigger driving motor is mounted on the hydraulic telescopic outrigger (33) and is used to control the extension and retraction of the hydraulic telescopic outrigger (33).

5. According to claim 4, a new intelligent bridge-building machine for bridge cantilever construction is characterized in that: The template system (2) comprises a side mold, an inner mold, a bottom mold (26) and a hydraulic drive module, wherein the hydraulic drive module is connected to the side mold, the inner mold and the bottom mold (26) to achieve fully automatic lateral and vertical adjustment of the side mold and the bottom mold (26), while achieving the automatic closing and closing function of the inner mold.

6. According to claim 5, a new intelligent bridge-building machine for bridge cantilever construction is characterized in that: The inner mold comprises an inner guide beam (21), an inner mold lateral adjustment cylinder (22), an inner main frame (23), an inner side frame (231) and a mold closing hydraulic cylinder (232). The inner guide beam (21) is connected to the main beam (11) through a sling. Two inner mold lateral adjustment cylinders (22) are provided and are both fixedly mounted on the inner guide beam (21). The movable ends of the two inner mold lateral adjustment cylinders are respectively fixedly connected to an inner main frame (23). The two inner main frames (23) are respectively hinged to an inner side frame (231). Two mold closing hydraulic cylinders (232) are provided and are both hinged to the inner main frame (23). The movable ends of the two mold closing hydraulic cylinders (232) are respectively connected to an inner side frame (231). A wooden template (236) is provided below the two inner side frames (231).

7. The new intelligent bridge-building machine for cantilever bridge construction according to claim 6 is characterized by: An adjusting rod (233) is fixedly connected below the inner guide beam (21), a baffle (234) is fixedly connected to the bottom of the adjusting rod (233), an adjusting plate is sleeved on the adjusting rod (233), a pressure rod (235) is fixedly connected to the adjusting plate, the bottom of the pressure rod (235) is connected to the wooden template (236), a supporting rod (237) is connected to the side wall of the inner frame (231), and the inner frame (231) can be switched between a retracted state and an extended state; When the inner frame (231) is in an open state, the adjustment plate abuts against the top of the baffle (234), and the wooden template (236) is in a working state; When the inner frame (231) is in a retracted state, the support rod (237) lifts up the adjustment plate, so that the wooden template (236) is in a demoulding state.

8. The new intelligent bridge-building machine for cantilever bridge construction according to claim 7 is characterized by: The adjusting rod (233) is threadedly connected to a limiting plate (238), and a compression spring (239) is sleeved on the adjusting rod (233). One end of the compression spring (239) abuts against the adjusting plate, and the other end abuts against the limiting plate (238).

9. The new intelligent bridge-building machine for cantilever bridge construction according to claim 1 is characterized by: It also includes an automatic control system and an intelligent monitoring system. The automatic control system is composed of a calculation module, a data acquisition module, and a hydraulic drive module, and can realize pump station control, bridge-building machine travel control, posture control, boom adjustment, template adjustment, and anti-thrust force control functions.

10. The new intelligent bridge-building machine for cantilever bridge construction according to claim 9 is characterized in that: The intelligent monitoring system can monitor the main beam (11), the stress of the suspension rod, the wind force and speed, the load of the outriggers, and the travel of the jack.

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