Automatic conveying system for rectangular jacking pipe sections

Abstract

The application discloses a kind of rectangular top pipe pipe section automatic conveying system, and relates to top pipe conveying technical field.A kind of rectangular top pipe pipe section automatic conveying system, including conveyor, side rail, suspension rail, freight flatcar, hoist frame and transfer mechanism;The side rail is installed in the both sides of conveyor, suspension rail is installed in the one end of side rail close to the discharge end of conveyor, and the freight flatcar is placed on suspension rail;Transfer mechanism is arranged on side rail, and transfer mechanism moves from side rail to suspension rail end and transfers top pipe to freight flatcar.The present application is suspended by suspension rail and hoist frame and other devices, and top pipe pipe section is suspended by four-point by cooperation suspension rail, which can effectively ensure the stability of top pipe pipe section transfer, and the stability of the frame is different from automobile crane hoisting, which is more simple and efficient, and has higher stability, suitable for worker control, and has better effect.

Description

Technical Field

[0001] This invention relates to the field of pipe jacking technology, specifically to an automatic conveying system for rectangular pipe jacking sections. Background Technology

[0002] Rectangular pipe jacking is a pipe jacking technology developed based on large-diameter circular pipe jacking. Rectangular tunnels constructed using this technology can meet the needs of underground pedestrian tunnels, subway entrances and exits, and underground utility tunnels. As a trenchless method, it minimizes the impact on the surrounding environment and is increasingly favored in complex environments, showing broad application prospects. When installing prefabricated pipe sections in deep foundation pits, the influence of the cross bracing of the support structure must be considered. Current construction methods often involve lowering the pipe sections into the pit, but due to the influence of the cross bracing, they cannot be directly installed in place and must be pulled to the designed position using a winch. This method is slow and prone to damaging the pipe sections. Currently, truck cranes are mainly used to lift rectangular pipe sections.

[0003] CN117263019A discloses a sliding rectangular pipe jacking segment hoisting and stabilizing device, which effectively solves the swaying problem of rectangular pipe jacking segments during hoisting. This hoisting device for rectangular pipe jacking segments includes a horizontal moving mechanism and a vertical sliding mechanism respectively located at the bottom of the pit and one side wall. It can prevent the segments from swaying due to unpredictable factors, thus avoiding collisions and damage to the internal supports erected in the pit. However, it still requires the cooperation of a truck crane, and in restricted areas, large pits may not be accessible to trains or truck cranes.

[0004] Therefore, in order to solve the above problems, the present invention provides an automatic conveying system for rectangular jacking pipe sections, which facilitates on-site construction organization. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic conveying system for rectangular jacking pipe sections to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic conveying system for rectangular jacking pipe sections, comprising: a conveyor, side rails, suspension rails, a freight flatcar, and a transfer mechanism; The side rails are installed on both sides of the conveyor, and the suspension rail is installed at one end of the side rails near the unloading end of the conveyor. The freight flatcar is placed on the suspension rail. A transfer mechanism is also installed on the side rail. The transfer mechanism moves from the side rail to the end of the suspension rail and transfers the jacking pipe to the freight flatcar.

[0007] Further, the transfer mechanism includes two sliders that slide on the side rail and the suspension rail groove. A plate is fixed on the top of the slider. A winding column and a gear column are rotatably mounted on the top of the two plates respectively. An arc plate is provided on the top of each plate.

[0008] Further, a gap is provided between the winding column and the gear column and the corresponding arc plate. A cable rope is fixed to the surface of the winding column, and the other end of the cable rope passes through the gap between the gear column and the arc plate. A mounting plate is fixed to the top of the arc plate located at the gear column, and a motor for driving the gear column is mounted on the top of the mounting plate.

[0009] Further, the freight flatcar has side plates fixed to its bottom on both sides, and pulleys that roll on the side rails and suspension rail grooves are installed on the side plates. The pulleys are stop brake wheels.

[0010] Furthermore, a CNC hydraulic cylinder is installed on one side of each suspension rail, and the telescopic end of the CNC hydraulic cylinder is connected to the mounting plate to control the movement of the transfer mechanism.

[0011] Furthermore, the suspension rail has recessed grooves at both ends, and hanging rings for suspension are fixed in the recessed grooves. A baffle fixed to the ground is provided at the end of the suspension rail away from the conveyor.

[0012] Further, the hoisting frame includes a set of support piles installed on the ground, with a suspension frame fixed to the top of the support piles. The suspension frame extends towards the pit end, and side strips are fixed to the inner sides of both sides of the suspension frame. A hoisting mechanism is installed on the suspension frame, which includes a support plate that slides between the two side strips. A set of winches is installed in the middle of the support plate, and the end of the cable of each winch is connected to a hanging ring through a hook.

[0013] Furthermore, the support plate has right angles on both sides, and rollers that roll on the edge strips are rotatably mounted on both sides of the support plate. A drive source is also installed on one side of the support plate, and the output end of the drive source is fixed to one end of the roller rotation shaft.

[0014] Further, the scheme includes a pit guide rail laid along the direction of pipe jacking in the pit, with a notch on the pit guide rail. The pit guide rail has the same width as the suspension rail, and the pit guide rail is of the same model as the suspension rail and the side rail.

[0015] Further, the outer plane of the foundation pit is provided with a groove one that is adapted to the suspension rail, and a groove two is provided at the gap inside the foundation pit. The bottom of the suspension rail is provided with a protruding ridge, which is adapted to groove one and groove two.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This automatic conveying system for rectangular pipe jacking sections uses suspension rails and lifting frames to suspend the pipe jacking sections at four points, effectively ensuring the stability of the pipe jacking section transfer. At the same time, the stabilizing frame is different from the lifting method of a truck crane. This lifting method is simpler, more efficient, and more stable, suitable for workers to operate, and has good results.

[0017] Meanwhile, the automatic conveying system for rectangular pipe jacking sections requires less height and space compared to a truck crane, and offers better operator control, safety, and adaptability, making it more suitable for conveying pipe jacking sections of different sizes in foundation pits. Attached Figure Description

[0018] Figure 1 This is a top-down structural diagram of the present invention; Figure 2 This is a schematic diagram showing the position and structure of the conveyor, transfer mechanism, side rail, and suspension rail of the present invention; Figure 3 This is a schematic diagram of the position and structure of the transfer mechanism and conveyor of the present invention; Figure 4 This is a schematic diagram showing the position and structure of the hoisting frame, conveyor, and freight flatcar of the present invention; Figure 5 This is a schematic diagram of the structure inside the foundation pit of the present invention from above; Figure 6 This is a schematic diagram of the structure from the front view of the present invention.

[0019] In the diagram: 1. Conveyor; 2. Side rail; 3. Suspension rail; 301. Recessed groove; 302. Hanging ring; 303. Raised ridge; 4. Freight flatcar; 401. Side plate; 402. Pulley; 5. Transfer mechanism; 501. Slider; 502. Placement plate; 503. Winding column; 504. Gear column; 505. Arc plate; 506. Cable rope; 507. Mounting plate; 508. Motor; 6. Lifting frame; 601. Support pile; 602. Suspension frame; 603. Edge strip; 604. Support plate; 605. Winch; 606. Rope; 607. Roller; 608. Drive source; 7. Pit guide rail; 701. Notch; 702. Groove II; 8. CNC hydraulic cylinder; 9. Groove I. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0021] It should be noted that in the description of this invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale; for example, the thickness or width of some layers may be exaggerated relative to other layers.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be discussed or described in detail in the description of the subsequent figures.

[0024] like Figures 1-2 As shown, the present invention provides a technical solution: an automatic conveying system for rectangular jacking pipe sections, comprising: a conveyor 1, side rails 2, suspension rails 3, a freight flatcar 4, a hoisting frame 6, and a transfer mechanism 5. The side rails 2 are installed on both sides of the conveyor 1, the suspension rails 3 are installed at the end of the side rails 2 near the unloading end of the conveyor 1, the freight flatcar 4 is placed on the suspension rails 3, and the transfer mechanism 5 is set on the side rails 2. The transfer mechanism 5 moves from the side rails 2 to the end of the suspension rails 3 and transfers the jacking pipe to the freight flatcar 4. The automatic conveying system conveys the jacking pipe section to the end of the conveyor 1 through the conveyor 1, and then uses the transfer mechanism 5 to transfer the jacking pipe section to the freight flatcar 4. At this time, the hoisting frame 6 suspends and transfers the suspension rails 3 to the top of the foundation pit, and then lowers the suspension rails 3 to complete the jacking pipe transfer.

[0025] like Figure 2 and Figure 3As shown, to ensure the smooth implementation of this embodiment, it is necessary to understand that the transfer mechanism 5 includes two sliders 501 that slide respectively in the grooves of the two side rails 2 and the suspension rail 3. A mounting plate 502 is fixed to the top of each slider 501. A winding column 503 and a gear column 504 are rotatably mounted on the top of each mounting plate 502. An arc plate 505 is provided on the top of each mounting plate 502. Gaps are provided between the winding column 503 and the gear column 504 and the corresponding arc plate 505. The winding column... A cable rope 506 is fixed to the surface of 503. The other end of the cable rope 506 passes through the gap between the gear column 504 and the arc plate 505. A mounting plate 507 is fixed to the top of the arc plate 505 located on the gear column 504. A motor 508 for driving the gear column 504 is mounted on the top of the mounting plate 507. CNC cylinders 8 are installed on one side of the suspension rail 3. The telescopic end of the CNC cylinder 8 is fixed to the slider 501 to control the movement of the transfer mechanism 5. The transfer mechanism 5 is used to move the jacking pipe section from the conveyor 1. The pipe section is transferred to the suspension rail 3. When the conveyor 1 transports the jacking pipe section to the unloading end, the conveyor 1 is temporarily stopped. At this time, the cable rope 506 on the winding column 503 is manually pulled towards one end of the gear column 504, and the cable rope 506 is passed through the gap between the gear column 504 and the arc plate 505. Because the gap between the gear column 504 and the arc plate 505 is small, the motor 508 drives the gear column 504 to insert the cable rope 506 into the gap and continue rotating to tighten the cable. Rope 506 forms a barrier rope on the conveyor 1. The cable rope 506 needs to be connected to the gear column 504 from the back of the jacking pipe section. Then, the sliders 501 on both sides are moved synchronously by the CNC cylinder 8, so that the transfer mechanism 5 moves towards the suspension rail 3. During the movement, the jacking pipe section is pushed by the cable rope 506 to the freight flatcar 4. When the cable rope 506 is transferred to the gap between the conveyor 1 and the freight flatcar 4, the transfer of the jacking pipe is completed.

[0026] The freight flatcar 4 has side plates 401 on both sides, and pulleys 402 that roll on the rail grooves are installed on the side plates 401. The freight flatcar 4 is basically level with or slightly lower than the conveying plane of the conveyor 1. The freight flatcar 4 is made of steel structure and its top surface is polished to allow the jacking pipe section to move smoothly on the freight flatcar 4 during the transfer process. In addition, since the suspension rail 3 needs to be transferred synchronously during the lateral transfer process, the CNC cylinder 8 is connected to the suspension rail 3, and its cylinder extension end is connected to the transfer mechanism 5. In this case, the connection between the suspension rail 3 and the side rail 2 is located at the end of the unloading end of the conveyor 1, and there is a certain gap between the freight flatcar 4 and the conveyor 1. In this way, after the transfer mechanism 5 transfers the rectangular jacking pipe to the freight flatcar 4, the transfer mechanism 5 can also move to the suspension rail 3 under the braking of the CNC cylinder 8, and can be suspended and transferred together with the suspension rail 3.

[0027] like Figure 3 and Figure 4 As shown, to ensure the smooth implementation of this embodiment, it is necessary to understand that the hoisting frame 6 includes a set of support piles 601 installed on the ground. A suspension frame 602 is fixed to the top of the support piles 601. The suspension frame 602 extends towards the pit end. Side strips 603 are fixed to the inner sides of both sides of the suspension frame 602. A support plate 604 slides between the two side strips 603 of the suspension frame 602. A set of winches 605 is installed on the support plate 604. The end of the rope 606 of each winch 605 is connected to the hanging ring 302 through a hook. Recessed grooves 301 are opened at the rail grooves at both ends of the suspension rail 3. Hanging rings 302 for suspension are fixed in the recessed grooves 301. The suspension frame 602 Extending towards the pit end and spanning at least the entire width of the pit, before lateral transfer, the rope 606 is lowered by the winch 605 and the hook is connected to the hanging ring 302. The suspension rail 3 is then lifted by the winch 605 for lateral transfer. The recessed grooves 301 are all located at the rail grooves of the suspension rail 3, so they will not interfere with the subsequent movement of the freight flatcar 4. At the same time, in order to improve the stability of the transfer mechanism 5 during the transfer of the jacking pipe section and to prevent the freight flatcar 4 from moving backward due to friction when the jacking pipe section is transferred onto the freight flatcar 4, the pulley 402 of the freight flatcar 4 is a brake wheel. During the transfer of the jacking pipe section, the pulley 402 is braked to prevent the freight flatcar 4 from moving backward.

[0028] like Figure 4 As shown, to ensure the smooth implementation of this embodiment, it is necessary to understand that both sides of the support plate 604 are right angles, and both sides of the support plate 604 are rotatably mounted with rollers 607 that roll on the edge strips 603. A drive source 608 is also installed on one side of the support plate 604. The output end of the drive source 608 is fixed to one end of the rotation shaft of one of the rollers 607. The right angles on both sides of the support plate 604 can effectively ensure the limiting of the support plate 604, allowing the support plate 604 to move laterally strictly along the suspension frame 602. During the lateral movement, the drive source 608 drives one of the rollers 607, allowing the roller 607 to carry the support plate 604 to move until it is directly above the foundation pit.

[0029] like Figure 5 and Figure 6As shown, to ensure the smooth implementation of this embodiment, it is necessary to understand that a pit guide rail 7 is laid in the pit along the direction of pipe jacking. A notch 701 is provided on the pit guide rail 7. The width of the pit guide rail 7 is the same as that of the suspension rail 3. The pit guide rail 7, suspension rail 3, and side rail 2 are of the same model. A groove 9 adapted to the suspension rail 3 is opened on the outer plane of the pit. A groove 702 is opened at the notch 701 in the pit. A protruding rib 303 is provided at the bottom of the suspension rail 3. The protruding rib 303 is adapted to the groove 9 and groove 702. 2. During the transfer of the pipe jacking section, the suspension rail 3 is transferred from outside the pit to inside the pit and connects with the pit guide rail 7. Therefore, it is necessary to ensure the accuracy of the connection between the suspension rail 3 and the pit guide rail 7 during the transfer process. At the same time, it is also necessary to ensure the accuracy of the connection between the suspension rail 3 and the side rail 2 when the suspension rail 3 is transferred from inside the pit to outside the pit. By setting groove 1 9 and groove 2 702 to match the protrusion 303 at the bottom of the suspension rail 3, a foolproof structure is formed. During the suspension connection process, the suspension rail 3 is accurately connected, ensuring the accuracy and efficiency of the connection.

[0030] In summary, the overall conveying dynamic process of this conveying system is as follows: The jacking pipe section is transported to the end of the conveyor 1. After the conveyor 1 stops transporting, the jacking pipe section is transferred using the transfer mechanism 5. At this time, the cable rope 506 on the winding column 503 needs to be pulled to the other end, and the cable rope 506 is tightened and fixed by the gear column 504. Then, the transfer mechanism 5 is controlled by the CNC cylinder 8 to move on the suspension rail 3, and pushes the jacking pipe section to the freight flatcar 4 during the movement. After the jacking pipe section is transferred to the freight flatcar 4, the suspension rail 3 is suspended by the hoisting frame 6 and transferred laterally. Since the suspension rail 3 is equipped with a rail groove and the rail groove limits the freight flatcar 4, the freight flatcar 4 can remain stable with the cooperation of the anti-brake pulley 402 during the lateral transfer. After the freight flatcar 4 is transferred to the top of the pit, the freight flatcar 4 is lowered and the suspension rail 3 is connected with the pit guide rail 7 to realize the transfer of the jacking pipe section.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic conveying system for rectangular pipe jacking sections, characterized in that, include: Conveyor (1), side rail (2), suspension rail (3), freight flatcar (4), hoisting frame (6), transfer mechanism (5); The side rails (2) are installed on both sides of the conveyor (1), and the suspension rails (3) are installed on one end of the side rails (2) near the unloading end of the conveyor (1). The freight flatcar (4) is placed on the suspension rails (3). A transfer mechanism (5) is also provided on the side rail (2). The transfer mechanism (5) moves from the side rail (2) to the end of the suspension rail (3) and transfers the jacking pipe to the freight flatcar (4). The transfer mechanism (5) includes two sliders (501) that slide in the grooves of the side rail (2) and the suspension rail (3). A mounting plate (502) is fixed on the top of the slider (501). A winding column (503) and a gear column (504) are respectively rotatably mounted on the top of the two mounting plates (502). An arc plate (505) is provided on the top of each of the two mounting plates (502). The winding column (503) and gear column (504) are provided with gaps between them and the corresponding arc plate (505). A cable rope (506) is fixed on the surface of the winding column (503). The other end of the cable rope (506) passes through the gap between the gear column (504) and the arc plate (505). A mounting plate (507) is fixed on the top of the arc plate (505) located at the gear column (504). A motor (508) for driving the gear column (504) is installed on the top of the mounting plate (507).

2. The automatic conveying system for rectangular jacking pipe sections according to claim 1, characterized in that: The freight flatcar (4) has side plates (401) fixed to the bottom of both sides. The side plates (401) are equipped with pulleys (402) that roll on the side rails (2) and the suspension rails (3). The pulleys (402) are stop brake wheels.

3. The automatic conveying system for rectangular jacking pipe sections according to claim 1, characterized in that: Each side of the suspension rail (3) is equipped with a CNC hydraulic cylinder (8), and the telescopic end of the CNC hydraulic cylinder (8) is connected to the plate (502) to control the movement of the transfer mechanism (5).

4. The automatic conveying system for rectangular jacking pipe sections according to claim 1, characterized in that: The suspension rail (3) has recessed grooves (301) at both ends of the rail groove, and each recessed groove (301) has a hanging ring (302) for suspension fixed in it. The end of the suspension rail (3) away from the conveyor (1) is provided with a baffle fixed to the ground.

5. The automatic conveying system for rectangular jacking pipe sections according to claim 1, characterized in that: The hoisting frame (6) includes a set of support piles (601) installed on the ground. A suspension frame (602) is fixed to the top of the support piles (601). The suspension frame (602) extends to the end of the pit. Side strips (603) are fixed to the inner sides of both sides of the suspension frame (602). A hoisting mechanism is installed on the suspension frame (602). The hoisting mechanism includes a support plate (604) that slides between the two side strips (603). A set of winches (605) is installed in the middle of the support plate (604). The end of the cable (606) of each winch (605) is connected to the hanging ring (302) by a hook.

6. The automatic conveying system for rectangular jacking pipe sections according to claim 5, characterized in that: The bracket plate (604) is right-angled on both sides. Rollers (607) that roll on the side strip (603) are rotatably mounted on both sides of the bracket plate (604). A drive source (608) is also installed on one side of the bracket plate (604). The output end of the drive source (608) is fixed to one end of the rotating shaft of the roller (607).

7. The automatic conveying system for rectangular jacking pipe sections according to claim 1, characterized in that: Pit guide rails (7) are laid in the pit along the direction of pipe jacking. A notch (701) is provided on the pit guide rails (7). The width of the pit guide rails (7) is the same as that of the suspension rails (3). The pit guide rails (7) are of the same type as the suspension rails (3) and the side rails (2).

8. The automatic conveying system for rectangular jacking pipe sections according to claim 1, characterized in that: A groove 1 (9) adapted to the suspension rail (3) is provided on the outer plane of the foundation pit, and a groove 2 (702) is provided at the gap (701) inside the foundation pit. A protruding rib (303) is provided at the bottom of the suspension rail (3), and the protruding rib (303) is adapted to the groove 1 (9) and the groove 2 (702).

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