A mobile pedestal automatic circulation system and method in a precast beam yard

Abstract

The application discloses a mobile pedestal automatic circulation system and method in a precast beam field, and the system comprises: a plurality of mobile pedestals, one mobile pedestal is arranged in each functional area of the precast beam field, a production line track arranged below the ground and sequentially penetrating through the functional areas, a return track arranged above the ground and parallel to the production line track, a transverse moving device used for moving the mobile pedestal reaching the terminal end of the production line track to the terminal end of the return track and moving the mobile pedestal at the starting end of the return track to the starting end of the production line track, and a jacking device used for jacking or lowering the transverse moving device to the height matched with the production line track or the return track, one set of the transverse moving device and the jacking device is arranged at the starting end of the production line track and the return track, and one set of the transverse moving device and the jacking device is arranged at the terminal end of the production line track and the return track. The application realizes the mobile pedestal automatic circulation without high-altitude hoisting, and has high safety.

Description

Technical Field

[0001] This invention belongs to the field of bridge construction technology, and in particular relates to an automatic circulation system and method for mobile platforms in a precast beam yard. Background Technology

[0002] With technological advancements, domestic precast beam yards are gradually shifting from fixed platforms to mobile platforms. The bottom formwork of the precast beams is equipped with a power system, and it moves unidirectionally through multiple areas along laid tracks, following the sequence of rebar tying → concrete pouring → curing → tensioning and grouting → beam storage. After reaching the last functional area, the unloaded platform is transported back to the starting area via a gantry crane. However, this method results in uneven stress on the platform, significantly affecting its deflection, leading to low efficiency and a risk of falls from height. Currently, there is no satisfactory solution. Summary of the Invention

[0003] This invention achieves automatic circulation of the moving platform through a sunken production line track, an upper-bearing return track, and a lateral movement device between high and low tracks, thus solving the following problems:

[0004] (1) Safety hazards of traditional high-altitude hoisting and moving methods and quality hazards affecting the deflection and stiffness of the moving platform;

[0005] (2) The traditional ground track moving scheme has a large overall height of prefabricated components and moving platform, which poses a greater safety risk, and there are safety hazards when the power supply sliding line is laid on the ground.

[0006] The technical solution adopted in this application is as follows:

[0007] An automated circulation system for mobile platforms in a precast beam yard includes:

[0008] Multiple mobile platforms are set up for each functional area of ​​the precast beam yard. The mobile platforms move along the production line track to the corresponding functional area to perform the corresponding process operations.

[0009] The production line tracks are laid underground and run sequentially through each functional area;

[0010] The return track is parallel to the production line track and is located above the ground;

[0011] A traverse device, which is used to move a movable platform that has reached the end of the production line track to the end of the return track, and to move a movable platform that has reached the beginning of the return track to the beginning of the production line track.

[0012] A lifting device for raising or lowering the traverse device to a height that matches the production line track or return track.

[0013] A set of traversing and lifting devices is installed at the starting point of the production line track and the return track, and a set of traversing and lifting devices is installed at the ending point of the production line track and the return track.

[0014] Optionally, a power supply line is provided on the side of the production line track to supply power to the moving platform on it.

[0015] Optionally, a mobile power supply can be used to power the mobile platform on the return track.

[0016] Optionally, the lateral movement device includes:

[0017] The frame is set in a direction perpendicular to the return track, with a first fixed pulley installed at one end of the frame and a second fixed pulley installed at the other end of the frame;

[0018] The transverse track is set on the frame.

[0019] The docking track is set at the top of the fixed box. The docking track is not parallel to the transverse track. The lower part of the fixed box is movably set on the transverse track.

[0020] A movable pulley frame, on which a first movable pulley and a second movable pulley are mounted.

[0021] The hydraulic cylinder has its cylinder barrel fixed along the length of the frame, and its extended end is fixed to the movable pulley bracket.

[0022] The first wire rope has one end fixed and the other end passes through the first movable pulley and the first fixed pulley in sequence before being fixed to the fixed box;

[0023] The second wire rope has one end fixed and the other end successively passes over the second movable pulley and the second fixed pulley before being fixed to the fixed box.

[0024] Optionally, the lower part of the fixing box is mounted on a transverse track via rollers.

[0025] Optionally, the lifting device is located below the transverse track, and the extended end of the lifting device is connected to the frame. The frame is raised or lowered by extending and retracting the lifting device.

[0026] Optionally, the return track is arranged above the ground, meaning that the top surface of the return track is flush with the ground.

[0027] Optionally, the functional areas include a rebar tying area, a concrete pouring area, a curing area, a tensioning area, and a beam storage area.

[0028] Optionally, the lifting device is used to lift or lower the traverse device to a height that matches the production line track or return track, meaning:

[0029] The moving platform is moved to the docking track at the end point, and then the lifting device is lifted upward so that the docking track rises to the same height as the return track. Then, by operating the transverse movement device, the moving platform is moved along with the docking track to the end point of the return track.

[0030] The moving platform is moved to the docking track at the starting point. By operating the traverse device, the moving platform is moved along with the docking track to the starting point of the production line track. Then, the lifting device is used to lower the platform so that the docking track is at the same height as the production line track.

[0031] This application also provides an automatic circulation method for mobile platforms in a precast beam yard, which uses the above-described automatic circulation system for mobile platforms in a precast beam yard to perform the following steps:

[0032] Step S1: Move multiple mobile platforms sequentially from the starting point of the production line track through each functional area until they reach the end of the production line track. Then move them to the docking track at that end. The lifting device then lifts them upwards, raising the docking track to the same height as the return track.

[0033] Step S2: By operating the transverse movement device, the moving platform is moved to the end of the return track along the docking track;

[0034] Step S3: The moving platform moves along the docking track to the return track, and then moves along the return track to the starting point of the return track, and continues to move to the docking track at that end. By operating the traversing device, the moving platform is moved along the docking track to the starting point of the production line track.

[0035] Step S4: The lifting device at this end descends, causing the docking track to descend to the same height as the production line track, and the docking track connects with the production line track.

[0036] Step S5: The moving platform moves along the docking track to the production line track.

[0037] This application achieves automatic circulation of a mobile platform without high-altitude hoisting by using a sunken production line track, an upper-bearing return track, a transverse movement device, and a mobile power supply, which has the following beneficial effects:

[0038] (1) The sunken production line track design reduces the overall height of the precast beams and the moving platform, thus reducing safety risks. At the same time, the sunken track design allows the power supply cable of the moving platform to be placed on the side of the track, concealed below the ground, preventing significant safety hazards that would occur if the cable were placed on the ground.

[0039] (2) The transverse movement device realizes the high and low lateral track change between the sunken production line track and the upper bearing return track. The non-lifting operation has little impact on the deflection of the moving platform, there is no high-altitude operation, and the safety is high.

[0040] (3) The mobile power supply solves the power supply problem when the mobile platform runs in the upper bearing track, avoiding the safety hazards when the power supply is provided by the sliding line or roller cable on the ground. Attached Figure Description

[0041] Figure 1 This is a top view of the automatic circulation system of the moving platform in the precast beam yard according to an embodiment of the present invention.

[0042] Figure 2 This is a side view of the automatic circulation system of the moving platform in the precast beam yard according to an embodiment of the present invention.

[0043] Figure 3 This is a schematic diagram of the transverse movement device according to an embodiment of the present invention. Detailed Implementation

[0044] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] The automatic circulation system of the moving platform in the precast beam yard in this embodiment, such as Figures 1 to 3 As shown, the precast beam yard includes a production line track 500, a return track 600, multiple moving platforms 60, a traversing device 80, and a lifting device 70. The precast beam yard comprises multiple functional areas, each with a corresponding moving platform 60. The production line track 500 sequentially runs through these functional areas, which may include a rebar tying area, a concrete pouring area, a curing area, a tensioning area, and a beam storage area, each equipped with a moving platform 60. The moving platform 60 moves along the production line track 500 to its corresponding functional area for the appropriate process operation. The production line track 500 is located below ground level, reducing the overall height of the T-beams and concealing the power supply cable of the moving platform 60 on the side of the production line. The power supply cable is used to supply power to the moving platform 60.

[0046] A parallel return track 600 is set up next to the production line track 500. The top surface of the track is flush with the ground. Instead of a power supply line, a mobile power supply consisting of a battery pack and a transformer is used to power the mobile platform 60.

[0047] A set of transverse movement device 80 and lifting device 70 is provided at one end of the production line track 500 and the return track 600, and a set of transverse movement device 80 and lifting device 70 is provided at the other end of the production line track 500 and the return track 600.

[0048] The following is combined Figure 2To illustrate the structure of the transverse movement device, the transverse movement device 80 includes a transverse movement track 1, a docking track 8, a hydraulic cylinder 7, a first fixed pulley 3, a second fixed pulley 4, a movable pulley frame 2, a first movable pulley 21 and a second movable pulley 22, a first wire rope 5 and a second wire rope 6, all mounted on a frame 100. Figure 1 In the diagram, the solid line of the docking track 8 represents its actual position, while the dashed line of the docking track 8 represents its position after horizontal displacement.

[0049] The frame 100 can be constructed by welding two spaced I-beams together to form a long, narrow frame. The movable platform 60 is mounted on the docking track 8 and moves along the transverse track 1 via the docking track 8, thus moving the movable platform 60 to the production line track 500 or the return track 600.

[0050] The frame 100 extends horizontally and perpendicularly to the production line track 500. A transverse track 1, consisting of two parallel tracks, is located at the upper end of the frame 100 and can be fixed to the upper ends of the I-beams. A docking track 8, comprising two parallel tracks, is located at the upper end of the fixing box 10 and is horizontally and perpendicularly to the transverse track 1. Rollers 9 are mounted on the lower part of the fixing box 10 and are positioned on the transverse track 1. A first fixed pulley 3 is installed at the right end of the frame 100, and a second fixed pulley 4 is installed at the left end of the frame 100. For example, the first fixed pulley 3 and the second fixed pulley 4 can be installed between two I-beams.

[0051] The hydraulic cylinder 7 can be arranged and installed on the frame 100 along its length, for example, between two I-beams. The second movable pulley 22 and the first movable pulley 21 can be installed parallel to each other on the movable pulley frame 2. The left end of the hydraulic cylinder 1 is fixed to the movable pulley frame 2, and the right end is fixed to the frame 100. For example, the piston rod is fixed to the movable pulley frame 2, and the cylinder is fixed to the frame 100. One end of the first wire rope 5 is fixed to the cylinder of the hydraulic cylinder, and the other end passes through the first movable pulley 21 and the first fixed pulley 3 in sequence before being fixed to the fixed box 10. Furthermore, one end of the second wire rope 6 is fixed to the frame 100, and the other end passes through the second movable pulley 22 and the second fixed pulley 4 in sequence before being fixed to the fixed box 10.

[0052] When the piston rod of hydraulic cylinder 7 extends, the movable pulley frame 2 moves to the left, which in turn pulls the fixed box 10 to the right end of the frame via the first wire rope 5. This allows the movable platform to move to the right along the docking track 8 and then to the return track 600. Conversely, when the piston rod of hydraulic cylinder 7 retracts, the movable pulley frame 2 moves to the right, which in turn pulls the fixed box 10 to the left end of the frame via the second wire rope 6. This allows the movable platform to move to the left along the docking track 8 and then to the production line track 500.

[0053] like Figure 3As shown, the lifting device 70 is located below the transverse track 1. For example, it can be a hydraulic cylinder. The extended end of the hydraulic cylinder is connected to the lower end of the frame 100. The frame 100 can be raised or lowered by extending and retracting the hydraulic cylinder.

[0054] The following describes the automatic circulation system for the moving platforms in the precast beam yard, including the following steps:

[0055] Step S1, as follows Figure 1 In this process, multiple movable platforms 60 are moved sequentially along the production line track 500 from the starting point, passing through each functional area. After completing the process operation in that functional area, they continue to move. For example, the first movable platform 60 enters the rebar binding area first, and the other movable platforms wait behind. When the first movable platform enters the concrete pouring area, the second movable platform enters the rebar binding area, and so on. When the movable platform 60 reaches the end of the production line track 500, it continues to move to the docking track 8 at that end. Then, the lifting device 70 lifts it upward, raising the docking track 8 to the same height as the return track 600.

[0056] Step S2, as follows Figure 2 , Figure 3 In the process, by operating the transverse movement device, such as extending the piston rod of the hydraulic cylinder 7, the movable pulley frame 2 moves to the left, and the fixed box 10 is pulled to the right end of the frame by the first steel wire rope 5. In this way, the movable platform 60 can be moved to the right end of the return track 600 along with the docking track 8.

[0057] Step S3, as follows Figure 1 In the process, the movable platform 60 moves along the docking track 8 to the return track 600, then moves along the return track 600 to its starting point, and continues moving to the docking track 8 at that end. For example... Figure 2 , Figure 3 In the process, by operating the transverse movement device, such as the piston rod of the hydraulic cylinder 7 retracting, the movable pulley frame 2 moves to the right, and the fixed box 10 can be pulled to the left end of the frame by the second steel wire rope 6. In other words, the movable platform 60 can be moved to the starting end of the production line track 500 along with the docking track 8.

[0058] In step S4, the lifting device 70 at this end descends, causing the docking track 8 to descend to the same height as the production line track 500.

[0059] Step 5: The movable platform 60 moves along the docking track 8 onto the production line track 500. Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications all fall within the protection scope of the claims of the present invention.

Claims

1. An automatic circulation system for a moving platform in a precast beam yard, characterized in that, include: Multiple mobile platforms (60) are provided for each functional area of ​​the precast beam yard. The mobile platforms move along the production line track to the corresponding functional area to perform the corresponding process operations. The production line track (500) is located underground and runs through each functional area in sequence; The return track (600) is parallel to the production line track and is located above the ground; A transverse movement device (80) is used to move a moving platform that has reached the end of the production line track to the end of the return track, and to move a moving platform that has reached the beginning of the return track to the beginning of the production line track. A lifting device (70) is used to lift or lower the traverse device to a height that matches the production line track or return track. Specifically, a traverse and lifting device is installed at the starting point of the production line track and the return track, and a traverse and lifting device is installed at the ending point of the production line track and the return track. The lateral movement device includes: The frame is set in a direction perpendicular to the return track, with a first fixed pulley installed at one end of the frame and a second fixed pulley installed at the other end of the frame; The transverse track is set on the frame. The docking track is set at the top of the fixed box. The docking track is not parallel to the transverse track. The lower part of the fixed box is movably set on the transverse track. A movable pulley frame, on which a first movable pulley and a second movable pulley are mounted. The hydraulic cylinder has its cylinder barrel fixed along the length of the frame, and its extended end is fixed to the movable pulley bracket. The first wire rope has one end fixed and the other end passes through the first movable pulley and the first fixed pulley in sequence before being fixed to the fixed box; The second wire rope has one end fixed and the other end successively passes over the second movable pulley and the second fixed pulley before being fixed to the fixed box.

2. The automatic circulation system for moving platforms in a precast beam yard according to claim 1, characterized in that, The production line track is equipped with a power supply line on its side to supply power to the moving platform on it.

3. The automatic circulation system for moving platforms in a precast beam yard according to claim 1, characterized in that, The mobile power supply is used to power the mobile platform on the return track.

4. The automatic circulation system for moving platforms in a precast beam yard according to claim 1, characterized in that, The lower part of the fixed box is mounted on the transverse track via rollers.

5. The automatic circulation system for moving platforms in a precast beam yard according to claim 1, characterized in that, The lifting device is located below the transverse track, and its extended end is connected to the frame. The frame is raised or lowered by extending or retracting the lifting device.

6. The automatic circulation system for moving platforms in a precast beam yard according to claim 1, characterized in that, The return track is located above the ground, meaning that the top surface of the return track is flush with the ground.

7. The automatic circulation system for moving platforms in a precast beam yard according to claim 1, characterized in that, The functional areas include a rebar tying area, a concrete pouring area, a curing area, a tensioning area, and a beam storage area.

8. The automatic circulation system for moving platforms in a precast beam yard according to claim 1, characterized in that, The lifting device is used to lift or lower the traverse device to a height that matches the production line track or return track, meaning: The moving platform moves to the docking track at the end point, and then the lifting device lifts it upwards, raising the docking track to the same height as the return track. Then, by operating the traverse device, the moving platform moves along the docking track to the end point of the return track. The moving platform moves to the docking track at the starting point, and by operating the traverse device, the moving platform moves along the docking track to the starting point of the production line track. Then, by operating the lifting device, the platform descends, lowering the docking track to the same height as the production line track.

9. An automatic circulation method for mobile platforms in a precast beam yard, comprising the following steps using the automatic circulation system for mobile platforms in a precast beam yard as described in any one of claims 1 to 8: Step S1: Move multiple mobile platforms sequentially from the starting point of the production line track through each functional area until they reach the end point of the production line track. Then move them to the docking track at that end and lift them upwards with the lifting device so that the docking track rises to the same height as the return track. Step S2: By operating the transverse movement device, the moving platform is moved to the end of the return track along the docking track; Step S3: The moving platform moves along the docking track to the return track, and then moves along the return track to the starting point of the return track, and continues to move to the docking track at that end. By operating the transverse movement device, the moving platform is moved along the docking track to the starting point of the production line track. Step S4: The lifting device at this end descends, causing the docking track to descend to the same height as the production line track, and the docking track connects with the production line track. Step S5: The moving platform moves along the docking track to the production line track.

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