Cantilever bridge fabrication machine walking system and cantilever bridge fabrication machine

Abstract

The utility model relates to the technical field of bridge construction machinery, in particular to a cantilever bridge fabrication machine walking system and a cantilever bridge fabrication machine. The walking system comprises a walking main beam, main beam supporting legs, a first driving mechanism, a second driving mechanism and a jacking mechanism; the jacking mechanism is fixed on the walking main beam, and the jacking mechanism is used for jacking the walking main beam; the second driving mechanism is installed on the main beam supporting leg, and the main beam supporting leg is located below the walking main beam. A rack is arranged at the bottom of the walking main beam, the first driving mechanism comprises a first driving part and a gear, the first driving part and the gear are installed on the main beam supporting leg, the gear is matched with the rack, and the first driving part is used for driving the gear to rotate and driving the walking beam to advance. The technical problem that a cantilever bridge fabrication machine in the prior art needs a hydraulic oil cylinder to repeatedly jack and advance is solved, and the situation that the push-pull stress of the oil cylinder is not uniform is avoided.

Description

Technical Field

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

[0002] Cantilever bridge construction machines are the main equipment for pouring concrete in bridge construction. They are used to bear the self-weight and construction load of the poured beam segments. They are required to have simple structure, fast and reliable fastening, small deformation under stress, balanced forward movement, and convenient installation and disassembly, so as to provide better construction conditions and facilitate the construction operation of formwork installation and demolding. However, traditional cantilever bridge construction machines require repeated lifting and advancement using hydraulic cylinders on the poured beam segments, which makes the construction process cumbersome, requires a lot of construction personnel to cooperate at the same time, and is time-consuming and labor-intensive, which greatly affects the efficiency of bridge construction. Utility Model Content

[0003] The purpose of this utility model is to provide a walking system for a cantilever bridge building machine and a cantilever bridge building machine, so as to solve the technical problem that the existing cantilever bridge building machines need to use hydraulic cylinders to repeatedly lift and advance. The specific technical solution is as follows:

[0004] This utility model provides a traveling system for a cantilever bridge construction machine, including a traveling main beam, main beam legs, a first drive mechanism, a second drive mechanism, and a lifting mechanism. The lifting mechanism is fixed to the traveling main beam and is used to lift the traveling main beam. The second drive mechanism is installed on the main beam legs, which are located below the traveling main beam. When the lifting mechanism lifts the traveling main beam, the second drive mechanism is used to hang the main beam legs on the traveling main beam and drive the main beam legs to move along the traveling main beam. A rack is provided at the bottom of the traveling main beam. The first drive mechanism includes a first drive member and a gear, which are installed on the main beam legs. The gear is adapted to the rack, and the first drive member is used to drive the gear to rotate and drive the traveling main beam forward.

[0005] A further improvement of the cantilever bridge-building machine's walking system is that the main beam leg is provided with a vertical frame, and the second drive mechanism is installed on the vertical frame. When the main beam is in the forward state, there is a gap between the second drive mechanism and the bottom of the main beam.

[0006] A further improvement of the cantilever bridge-building machine's walking system is that the second drive mechanism includes a hanging wheel and a second drive member installed on the vertical frame. The bottom edge of the main walking beam extends to form a track plate that allows the hanging wheel to roll along the length of the main walking beam. The second drive member is used to drive the hanging wheel to rotate. When the main walking beam is in the forward state, there is a gap between the hanging wheel and the track plate.

[0007] A further improvement of the cantilever bridge-building machine's walking system is that it also includes a rear anchor rod, the upper part of which is connected to the walking main beam, and the lower part of which is used to connect to the installed bridge deck structural components.

[0008] A further improvement of the walking system of the cantilever bridge building machine of this utility model is that a bearing wheel is provided on the main beam leg, the bearing wheel is rotatably mounted on the main beam leg, and the bearing wheel is adapted to the rack.

[0009] A further improvement of the cantilever bridge-building machine's walking system is that plate molds are provided on both sides of the walking main beam.

[0010] This utility model also provides a cantilever bridge building machine, including the cantilever bridge building machine travel system as described above.

[0011] The application of the technical solution of this utility model has the following beneficial effects:

[0012] This utility model relates to a cantilever bridge-building machine's walking system. After the main beam is lifted by a jacking mechanism, a second drive mechanism moves the main beam's outriggers forward relative to the main beam. Then, the jacking mechanism lowers the main beam, allowing gears and racks to work together to drive the main beam forward relative to the main beam. This solves the technical problem of existing cantilever bridge-building machines requiring repeated lifting and advancing using hydraulic cylinders. It avoids uneven force distribution during cylinder pushing and pulling, improving the forward movement efficiency of the cantilever bridge-building machine. The gear and rack transmission method makes the transmission smoother and more precise in positioning. The system is simple in structure and easy to use.

[0013] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0015] Figure 1 This is a schematic diagram of the walking system of the cantilever bridge building machine of this utility model (the arrow in the figure indicates the forward direction);

[0016] Figure 2 This is an enlarged view of the walking system of the cantilever bridge building machine of this utility model (the arrow in the figure indicates the forward direction).

[0017] The components include: 1. Traveling main beam; 2. Main beam support leg; 3. Lifting mechanism; 4. Rack; 5. Gear; 6. Rear anchor rod; 7. First driving component; 8. Hanging wheel; 9. Formwork plate; 10. Second driving component; 11. Bearing wheel. Detailed Implementation

[0018] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] See Figure 1 and Figure 2 As shown, a cantilever bridge-building machine's traveling system includes a traveling main beam 1, main beam legs 2, a first drive mechanism, a second drive mechanism, and a lifting mechanism 3. The lifting mechanism 3 is fixed to the traveling main beam 1 and is used to lift the traveling main beam 1. The second drive mechanism is installed on the main beam legs 2, which are located below the traveling main beam 1. When the lifting mechanism 3 lifts the traveling main beam 1, the second drive mechanism is used to hang the main beam legs 2 on the traveling main beam 1 and drive the main beam legs 2 to move along the traveling main beam 1. A rack 4 is provided at the bottom of the traveling main beam 1. The first drive mechanism includes a first drive component 7 and a gear 5, which are installed on the main beam legs 2. The gear 5 is adapted to the rack 4. The first drive component 7 is used to drive the gear 5 to rotate and drive the traveling main beam forward.

[0020] In this embodiment, the first driving component 7 can be a motor, and the output shaft of the motor is connected to the gear 5. The main beam support leg 2 is formed by welding steel plates. There are two sets of lifting mechanisms 3, which are respectively installed on both sides of the traveling main beam 1. Each set can be equipped with at least two lifting mechanisms 3, which are arranged at intervals. The lifting mechanism 3 can be a linear drive component such as a hydraulic cylinder or a pneumatic cylinder. The main beam support leg 2 is used to support the load of the traveling main beam 1 and to determine the required position of the traveling main beam 1. The length and width of the main beam support leg 2 are both smaller than those of the traveling main beam 1. Limiting plates are provided at both ends of the traveling main beam 1 to prevent the main beam support leg 2 from exceeding its travel range.

[0021] Preferably, the main beam support leg 2 is provided with a vertical frame, and the second drive mechanism is installed on the vertical frame. When the traveling main beam 1 is in the forward state, there is a gap between the second drive mechanism and the bottom of the traveling main beam 1. Specifically, there are two sets of the second drive mechanism, which are respectively sandwiched on both sides of the traveling main beam 1. Each set can be provided with at least two second drive mechanisms, and the at least two second drive mechanisms are arranged at intervals.

[0022] Preferably, the second drive mechanism includes a hanging wheel 8 mounted on the vertical frame and a second drive member 10. The bottom edge of the main traveling beam 1 extends to form a track plate for the hanging wheel 8 to roll along the length of the main traveling beam 1. The second drive member 10 drives the hanging wheel 8 to rotate. When the main traveling beam 1 is in the forward state, there is a gap between the hanging wheel 8 and the track plate. When the main traveling beam 1 is not in the forward state, but the main beam support leg 2 is in the traveling state, the lifting mechanism 3 lifts the main traveling beam 1, causing the track plate to contact the hanging wheel 8 after the main traveling beam 1 rises. The lifting mechanism 3 further lifts, suspending the entire main beam support leg 2 in the air, while the hanging wheel 8 is hung on the track plate. The second drive member 10 drives the hanging wheel 8 to roll on the track plate, thereby driving the entire main beam support leg 2 to move forward. In this embodiment, the second drive member 10 can be a motor, and the output shaft of the motor is connected to the hanging wheel 8.

[0023] Preferably, the system also includes a rear anchor rod 6, the upper part of which is connected to the main traveling beam 1, and the lower part of which is used to connect to the installed bridge deck structural components. The anchor rod and the bridge deck structural components are detachably locked and anchored; for example, the anchor rod can be inserted into a mounting hole in the bridge deck and then secured with bolts. The rear anchor rod 6 ensures that the rear end of the main traveling beam 1 bears the load, thereby ensuring the stability of the entire traveling device.

[0024] Preferably, the main beam support leg 2 is provided with a load-bearing wheel 11, which is rotatably mounted on the main beam support leg 2 and is adapted to the rack 4. Multiple load-bearing wheels 11 can be provided as needed to meet the support requirements of the traveling main beam 1, distribute the weight of the traveling main beam 1, and prevent the gear 5 from being damaged due to excessive force.

[0025] Preferably, formwork plates 9 are provided on both sides of the main traveling beam 1. The formwork plates 9 can meet the requirements of bridge deck pouring construction. The formwork plates 9 are connected to the main traveling beam 1, so that they can move synchronously with the main traveling beam 1, avoiding errors caused by separate movements, which would affect the connection operation and construction operation.

[0026] This utility model also provides a cantilever bridge building machine, including the cantilever bridge building machine travel system as described above.

[0027] When the cantilever bridge-building machine's traveling system needs to travel, the rear anchor rod 6 is first disassembled, and then the traveling main beam 1 is lifted as a whole by the lifting mechanism 3, so that the hanging wheel 8 is hung on the track plate. The lifting mechanism 3 continues to lift, so that the main beam support leg 2 is suspended in the air. The second drive component 10 is activated to drive the hanging wheel 8 to rotate, thereby rolling on the track plate and driving the main beam support leg 2 to move forward along the length direction of the traveling main beam 1 until the predetermined position is reached. The second drive component 10 is then closed. The lifting mechanism 3 is then lowered so that the main beam support leg 2 is placed on the installed bridge deck. The descent continues until the rack 4 and gear 5 mesh. The first drive component 7 is activated to drive the gear 5 to rotate, driving the traveling main beam 1 to move forward until the predetermined position is reached. The first drive component 7 is then closed, and the anchor rod is connected between the traveling main beam 1 and the installed bridge deck structure.

[0028] This utility model's cantilever bridge-building machine walking system, after the lifting mechanism 3 lifts the main beam 1, the second drive mechanism can move the main beam support leg 2 forward relative to the main beam 1. Then, the lifting mechanism 3 lowers the main beam 1, so that the gear 5 and rack 4 cooperate to drive the main beam 1 forward relative to the main beam 1. This solves the technical problem of existing cantilever bridge-building machines requiring repeated lifting and forward movement using hydraulic cylinders, avoids uneven force distribution during cylinder pushing and pulling, and improves the forward movement efficiency of the cantilever bridge-building machine. The transmission method using gear 5 and rack 4 makes the transmission smoother and more precise in positioning. The structure is simple and easy to use.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A walking system for a cantilever bridge construction machine, characterized in that, It includes a traveling main beam (1), main beam legs (2), a first drive mechanism, a second drive mechanism, and a lifting mechanism (3); The lifting mechanism (3) is fixed to the traveling main beam (1), and the lifting mechanism (3) is used to lift the traveling main beam (1); The second drive mechanism is installed on the main beam support leg (2), which is located below the traveling main beam (1). When the lifting mechanism (3) lifts the traveling main beam (1), the second drive mechanism is used to hang the main beam support leg (2) on the traveling main beam (1) and drive the main beam support leg (2) to move along the traveling main beam (1). The bottom of the walking main beam (1) is provided with a rack (4). The first driving mechanism includes a first driving member (7) and a gear (5). The first driving member (7) and the gear (5) are installed on the main beam support leg (2). The gear (5) is adapted to the rack (4). The first driving member (7) is used to drive the gear (5) to rotate and drive the walking main beam forward.

2. The cantilever bridge-building machine travel system according to claim 1, characterized in that, The main beam support leg (2) is provided with a vertical frame, and the second drive mechanism is installed on the vertical frame. When the traveling main beam (1) is in the forward state, there is a gap between the second drive mechanism and the bottom of the traveling main beam (1).

3. The cantilever bridge-building machine travel system according to claim 2, characterized in that, The second drive mechanism includes a hanging wheel (8) mounted on the vertical frame and a second drive member (10). The bottom edge of the traveling main beam (1) extends to form a track plate for the hanging wheel (8) to roll along the length direction of the traveling main beam (1). The second drive member (10) is used to drive the hanging wheel (8) to rotate. When the traveling main beam (1) is in the forward state, there is a gap between the hanging wheel (8) and the track plate.

4. The cantilever bridge-building machine travel system according to claim 1, characterized in that, It also includes a rear anchor rod (6), the upper part of which is connected to the traveling main beam (1), and the lower part of which is used to connect to the installed bridge deck structure.

5. The cantilever bridge-building machine travel system according to claim 1, characterized in that, The main beam support leg (2) is provided with a bearing wheel (11), which is rotatably mounted on the main beam support leg (2) and is adapted to the rack (4).

6. The cantilever bridge-building machine travel system according to claim 1, characterized in that, The walking main beam (1) is provided with plate molds (9) on both sides.

7. A cantilever bridge-building machine, characterized in that, Includes the cantilever bridge construction machine travel system as described in claim 1.

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