A system for traversing a mobile trolley between high and low parallel tracks

Abstract

The present application discloses a system for horizontal movement of a mobile trolley between high and low parallel rails, which is used to move the mobile trolley between parallel transfer rails and return rails. The elevation of the transfer rail is lower than that of the return rail. The system includes a set of horizontal movement devices and jacking devices at the starting end and the ending end of the transfer rail and the return rail. After the mobile trolley moves to the docking rail at the ending end, it is lifted by the jacking device so that the height of the docking rail matches the height of the return rail. The docking rail is moved along the horizontal movement track, and the mobile trolley is moved to the ending end of the return rail along with the docking rail. After the mobile trolley moves to the docking rail at the starting end, it is moved along the horizontal movement track through the docking rail, and the mobile trolley is moved to the starting end of the transfer rail along with the docking rail. It is lowered by the jacking device so that the height of the docking rail matches the height of the transfer rail. The present application does not use a gantry crane to transport the mobile trolley, which completely avoids the operational risks of high-altitude and low-pressure transportation.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge construction, and in particular relates to a system for horizontally moving a mobile trolley between high and low parallel tracks. Background Art

[0002] Currently, there's still room for further improvement in the level of intelligence, standardization, and automation in prestressed concrete beam production. Smart precast beam yards utilize assembly-line processing to reduce the number of pedestals. T-beams undergo intelligent steaming and initial tensioning on mobile trolleys, reducing the number of T-beam transfers. Fixed hydraulic formwork reduces formwork assembly and lifting times, minimizing formwork deformation and improving the linear shape and appearance of T-beams.

[0003] Currently, the circulation system of the smart precast beam yard is not fully closed. A mobile trolley carrying the bound bottom web reinforcement moves to the concrete pouring area. After the hydraulic formwork is closed, the top slab reinforcement is hoisted, followed by the installation of negative moment prestressing ducts and embedded reinforcement. Finally, the concrete is poured and cured. However, the trolley only moves longitudinally along the transfer track; lateral movement to the return track is rare, especially when there is a height difference between the return track and the transfer track. Currently, no effective solution exists in China. Summary of the Invention

[0004] The present invention realizes the lateral movement of the T-beam moving trolley when there is a height difference between the transfer track and the return track. The technical solution adopted in this application is as follows:

[0005] A system for lateral movement of a mobile trolley between high and low parallel tracks, used to move the mobile trolley between parallel transfer tracks and return tracks, wherein the transfer track elevation is lower than the return track elevation, the lateral movement system includes a set of lateral movement devices and a lifting device arranged at the starting end of the transfer track and the return track, and a set of lateral movement devices and a lifting device arranged at the end end of the transfer track and the return track.

[0006] The traverse device comprises:

[0007] a frame, a first fixed pulley mounted on the right end of the frame, and a second fixed pulley mounted on the left end of the frame;

[0008] The traverse track is set on the frame.

[0009] The docking track is arranged at the upper end of the fixed box. The docking track is parallel to the transfer track and not parallel to the transverse track. The lower part of the fixed box is movably arranged on the transverse track.

[0010] a movable pulley frame, on which a first movable pulley and a second movable pulley are mounted,

[0011] The hydraulic cylinder is fixed along the length of the frame, and the left end of the hydraulic cylinder is fixed to the movable pulley frame.

[0012] a first steel wire rope, one end of which is fixed, and the other end of which is successively passed over the first movable pulley and the first fixed pulley and then fixed to the fixed box;

[0013] The second steel wire rope has one end fixed and the other end passed through the second movable pulley and the second fixed pulley in sequence and then fixed on the fixed box, and the first steel wire rope and the second steel wire rope are connected to the fixed box through a turnbuckle.

[0014] After the mobile trolley moves to the docking track at the terminal end, it is lifted by the jacking device so that the height of the docking track matches the height of the return track, and the docking track moves along the transverse track to move the mobile trolley along with the docking track to the terminal end of the return track. Moreover, after the mobile trolley moves to the docking track at the starting end, it is moved along the transverse track through the docking track to move the mobile trolley along the docking track to the starting end of the transfer track, and is lowered by the jacking device so that the height of the docking track matches the height of the transfer track.

[0015] Optionally, a power supply slide wire 50 is provided on the side of the transfer track for supplying power to the mobile trolley thereon, and a mobile power supply device is used on the return track to supply power to the mobile trolley.

[0016] Optionally, the lower portion of the fixed box is arranged on a transverse track via rollers.

[0017] Optionally, the transfer track is arranged below the ground, and the return track is arranged above the ground.

[0018] Optionally, the frame is assembled into a long strip frame using two spaced I-beams, the transverse track is two parallel tracks, respectively fixed to the upper ends of the I-beams, and the first fixed pulley and the second fixed pulley are installed between the two I-beams.

[0019] This application uses hydraulic cylinders, pulleys, and steel cables to drive a fixed box with a docking track welded to its upper end to move along the transverse track, achieving lateral movement of the mobile trolley on the docking track. This eliminates the need for a gantry crane to maneuver the trolley, completely avoiding the operational risks of high-pressure and air-conditioning transportation. Furthermore, transverse movement allows for intelligent trolley circulation, effectively improving beam manufacturing quality, reducing production cycles, reducing beam yard space, and mitigating safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a top view of a system for lateral movement of a mobile trolley between high and low parallel tracks according to an embodiment of the present invention.

[0021] Figure 2 This is a side view of a system for lateral movement of a mobile trolley between high and low parallel tracks according to an embodiment of the present invention.

[0022] Figure 3 Schematic diagram of a transverse movement device according to an embodiment of the present invention.

[0023] Figure 4 This is a front view of the connection between the transverse moving device and the jacking device according to an embodiment of the present invention.

[0024] Figure 5 A side view of the connection between the transverse movement device and the jacking device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0026] The mobile trolley of this embodiment moves the system laterally between high and low parallel tracks, such as Figure 1 As shown, the lateral movement system is used to move the mobile trolley 60 between a parallel transfer track 500 and a return track 600, wherein the transfer track 500 is at a lower elevation than the return track 600. For example, if the transfer track 500 is below ground level, the lateral movement system includes a set of lateral movement devices 80 and a lifting device 70 disposed at the starting ends of the transfer track 500 and the return track 600, and a set of lateral movement devices 80 and a lifting device 70 disposed at the ending ends of the transfer track 500 and the return track 600.

[0027] Before pouring the foundations of the transfer track 500 and return track 600, measurements must be conducted to ensure accurate positioning. Bolt holes must be embedded with a positional deviation of ≤5mm. The track foundation must be well-drained to prevent waterlogging and softening. Track laying can begin after the concrete reaches the design strength. P50 steel rails are used and must be laid straight with a 1m gauge. M22 limit bolts are embedded in the foundation, spaced 20cm horizontally and 100cm vertically. Track elevations must be consistent across the same cross section.

[0028] 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, a second movable pulley 22, and a first steel wire rope 5 and a second steel wire rope 6, which are arranged on a frame 100. The frame 100 can be formed by welding two spaced-apart I-beams into a long, rectangular frame. The movable trolley 60 is arranged on the docking track 8 and moves along the transverse movement track 1 via the docking track 8, thereby moving the movable trolley 60 along the docking track 8 to the transfer track 500 or the return track 600.

[0029] The frame 100 extends horizontally and perpendicularly to the transfer rail 500. Figure 3 、 4 In the embodiment, the frame 100 can be welded from an I-beam 101. A transverse track 1 is provided at the upper end of the frame 100. The transverse track 1 is two parallel tracks that can be fixed to the upper end of the I-beam respectively. The docking track 8 includes two parallel tracks and is provided at the upper end of the fixed box 10. The docking track 8 is horizontally and vertically connected to the transverse track 1. The lower part of the fixed box 10 is provided with a roller 9, which is provided on the transverse track 1. The first fixed pulley 3 is installed at the right end of the frame 100, and the 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.

[0030] The hydraulic cylinder 7 can be arranged and installed on the frame 100 along the length of the frame 100, for example, between two I-beams. The second movable pulley 22 and the first movable pulley 21 can be installed on the movable pulley frame 2 with their axes parallel to each other. 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 barrel is fixed to the frame 100. One end of the first steel wire rope 5 is fixed to the cylinder barrel of the hydraulic cylinder, and the other end is fixed to the fixed box 10 after passing through the first movable pulley 21 and the first fixed pulley 3 in sequence. In addition, one end of the second steel wire rope 6 is fixed to the frame 100, and the other end is fixed to the fixed box 10 after passing through the second movable pulley 22 and the second fixed pulley 4 in sequence.

[0031] When the piston rod of the hydraulic cylinder 7 is extended, the movable pulley frame 2 moves leftward accordingly, and the fixed box 10 can be pulled to the right end of the frame by the first steel wire rope 5, that is, the movable trolley can be moved rightward along the docking track 8 to the return track 600. When the piston rod of the hydraulic cylinder 7 is retracted, the movable pulley frame 2 moves rightward accordingly, and the fixed box 10 can be pulled to the left end of the frame by the second steel wire rope 6, that is, the movable trolley can be moved leftward along the docking track 8 to the transfer track 500.

[0032] Furthermore, the first steel wire rope and the second steel wire rope can be connected to the fixing box by means of a turnbuckle, so that the length of the steel wire rope can be adjusted.

[0033] The lifting device 70 is disposed below the transverse track 1 and may be, for example, a hydraulic cylinder, the extended end of which is connected to the lower end of the frame 100. Alternatively, a steel plate 701 may be provided on the frame 100, with the output end of the hydraulic cylinder connected to the steel plate 701. Preferably, a three-point steel plate 701 may be provided, with three hydraulic cylinders providing synchronous lifting. The frame 100 may be raised or lowered by the extension and retraction of the hydraulic cylinders. However, this application does not exclude the possibility that the lifting device 70 may be another linear drive mechanism, such as a pneumatic cylinder or a linear motor.

[0034] The following describes the working process of the transverse movement system:

[0035] Step S1, such as Figure 1 In the process, the mobile trolley 60 moves to the terminal end on the transfer track 500 and continues to move to the docking track 8 at the terminal end, and then the jacking device 70 jacks up so that the docking track 8 rises to the same height as the return track 600.

[0036] Step S2, such as Figures 2 to 4 By operating the transverse movement device, for example, extending the piston rod of the hydraulic cylinder 7, the movable pulley frame 2 moves to the left, and the fixed box 10 can be pulled to the right end of the frame by the first wire rope 5, so that the movable trolley 60 can be moved to the right along the docking track 8 to the end of the return track 600.

[0037] Step S3, such as Figure 1 In the embodiment, the mobile trolley 60 moves along the docking track 8 to the return track 600, and moves along the return track 600 to the starting end of the return track 600, and continues to move to the docking track 8 at the end. Figures 2 to 4 By operating the transverse movement device, such as contracting the piston rod of the hydraulic cylinder 7, 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, that is, the movable trolley 60 can be moved to the left along the docking track 8 to the starting point of the transfer track 500.

[0038] In step S4 , the lifting device 70 at this end is lowered, so that the docking track 8 is lowered to the same height as the transfer track 500 , thereby achieving docking between the docking track 8 and the transfer track 500 .

[0039] In step S5 , the movable trolley 60 moves along the docking track 8 to the transfer track 500 .

[0040] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications shall fall within the scope of protection of the claims of the present invention.

Claims

1. A system for traversing a mobile trolley between high and low parallel tracks, characterized in that: The movable trolley is used to move the movable trolley between a parallel transfer track and a return track, wherein the transfer track is at a lower elevation than the return track. The lateral movement system includes a set of lateral movement devices and a lifting device provided at the starting end of the transfer track and the return track, and a set of lateral movement devices and a lifting device provided at the end end of the transfer track and the return track. The traverse device comprises: a frame, a first fixed pulley mounted on the right end of the frame, and a second fixed pulley mounted on the left end of the frame; The traverse track is set on the frame. The docking track is arranged at the upper end of the fixed box. The docking track is parallel to the transfer track and not parallel to the transverse track. The lower part of the fixed box is movably arranged on the transverse track. a movable pulley frame, on which a first movable pulley and a second movable pulley are mounted, The hydraulic cylinder is fixed along the length of the frame, and the left end of the hydraulic cylinder is fixed to the movable pulley frame. a first steel wire rope, one end of which is fixed, and the other end of which is successively passed over the first movable pulley and the first fixed pulley and then fixed to the fixed box; The second steel wire rope has one end fixed and the other end passed through the second movable pulley and the second fixed pulley in sequence and then fixed on the fixed box, and the first steel wire rope and the second steel wire rope are connected to the fixed box through a turnbuckle. After the mobile trolley moves to the docking track at the terminal end, it is lifted by the jacking device so that the height of the docking track matches the height of the return track, and the docking track moves along the transverse track to move the mobile trolley along with the docking track to the terminal end of the return track. Moreover, after the mobile trolley moves to the docking track at the starting end, it is moved along the transverse track through the docking track to move the mobile trolley along the docking track to the starting end of the transfer track, and is lowered by the jacking device so that the height of the docking track matches the height of the transfer track.

2. The system for lateral movement of a mobile trolley between high and low parallel tracks according to claim 1, characterized in that: A power supply slide wire is provided on the side of the transfer track for supplying power to the mobile trolley thereon, and a mobile power supply device is used on the return track to supply power to the mobile trolley.

3. The system for lateral movement of a mobile trolley between high and low parallel tracks according to claim 1, characterized in that: The lower part of the fixed box is arranged on the transverse track through rollers.

4. The system for lateral movement of a mobile trolley between high and low parallel tracks according to claim 1, characterized in that: The transfer track is arranged below the ground, and the return track is arranged above the ground.

5. The system for lateral movement of a mobile trolley between high and low parallel tracks according to claim 1, characterized in that: The frame is assembled into a long strip frame by two spaced I-beams. The transverse track is two parallel tracks, which are respectively fixed on the upper ends of the I-beams. The first fixed pulley and the second fixed pulley are installed between the two I-beams.

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