Sucker bridge crane for hoisting pipe sheets

Abstract

The invention provides a sucker bridge crane for hoisting pipe sheets. The sucker bridge crane comprises a bridge frame, a hoisting mechanism, a sucker hanger and an anti-swing mechanism, the bridge frame is connected to the steel rail and can move along the steel rail, and the lifting mechanism is installed on the bridge frame, connected with the suction cup lifting tool through a steel rope and used for driving the suction cup lifting tool to ascend and descend; the anti-swing mechanism comprises a first anti-swing connecting piece fixedly installed at the bottom of the lifting mechanism and a second anti-swing connecting piece installed at the top of the suction cup lifting tool, and the first anti-swing connecting piece and the second anti-swing connecting piece are connected, can relatively slide in the vertical direction and are relatively limited in the horizontal direction. When the lifting mechanism drives the suction cup lifting appliance to ascend and descend, the first anti-swing connecting piece and the second anti-swing connecting piece can relatively slide in the vertical direction, and ascending and descending of the suction cup lifting appliance are not affected; meanwhile, due to the fact that the first anti-swing connecting piece and the second anti-swing connecting piece are relatively limited in the horizontal direction, when the bridge moves, the suction cup lifting appliance cannot swing left and right, lifting safety is guaranteed, and lifting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, in particular to a suction cup bridge crane used for lifting pipe segments. Background Art

[0002] The pipe segment is the main assembly component of shield construction and the innermost barrier of the tunnel. It is responsible for resisting soil pressure, groundwater pressure and some special loads. The pipe segment often needs to be lifted and demoulded during the production process. Because it is too heavy, a suction cup bridge crane is needed for lifting. The suction cup bridge crane involves the field of crane technology. For example, Chinese patent CN220148970U discloses a bridge crane for lifting glass mirrors, including a crane (i.e., a bridge frame), a lifting frame and a vacuum suction cup. The crane is connected to the rails and moves along the rails through a running mechanism. A lifting motor is installed on the crane, which is connected to the lifting frame through a steel rope to drive the lifting frame to lift. The vacuum suction cup is installed on the lifting frame and adsorbed on the surface of the lifting product through a vacuum pump.

[0003] Since the suction cup bridge crane uses steel rope for lifting, when the bridge moves to the demoulding station and stops, the hoist will swing left and right due to inertia, which makes it impossible for the hoist to accurately descend to the top of the hoisted product. It is necessary to wait for the hoist to stop swinging before lifting, and the work efficiency is low. After lifting the product, when the bridge is moved, the hoist and the adsorbed product will also swing left and right due to inertia, and even swing back and forth. Since the segment machine is heavy, once the swing amplitude is too large, safety accidents are likely to occur, posing a safety threat to the operators. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned prior art and provide a suction cup bridge crane for lifting pipe segments which can prevent the lifting device from shaking left and right when the bridge moves.

[0005] The technical solution of the present invention is to provide a suction cup bridge crane for lifting pipe segments having the following structure: It includes a bridge frame, a lifting mechanism and a suction cup hanger; the bridge frame is connected to the steel rail and can move along the steel rail, the lifting mechanism is installed on the bridge frame and connected to the suction cup hanger through a steel rope to drive the suction cup hanger to rise and fall; it also includes an anti-sway mechanism, the anti-sway mechanism includes a first anti-sway connecting piece fixedly installed at the bottom of the lifting mechanism and a second anti-sway connecting piece installed at the top of the suction cup hanger, the first anti-sway connecting piece is connected to the second anti-sway connecting piece, and the first anti-sway connecting piece and the second anti-sway connecting piece can slide relative to each other in the vertical direction and be relatively limited in the horizontal direction.

[0006] After adopting the above structure, the suction cup bridge crane for lifting pipe segments in the present invention has the following advantages compared with the prior art: The present invention arranges a first anti-sway connector at the bottom of the lifting mechanism and a second anti-sway connector at the top of the suction cup hanger. When the lifting mechanism drives the suction cup hanger to rise and fall, the first anti-sway connector and the second anti-sway connector will slide relative to each other in the vertical direction, so that the anti-sway mechanism can be synchronously extended and retracted without affecting the lifting and lowering of the suction cup hanger. At the same time, since the first anti-sway connector and the second anti-sway connector are relatively limited in the horizontal direction, the suction cup hanger will not swing left and right when the bridge moves, thereby ensuring lifting safety and improving lifting efficiency.

[0007] Preferably, the first anti-sway connector and the second anti-sway connector are circumferentially limited relative to each other, so as to prevent the first anti-sway connector and the second anti-sway connector from rotating relative to each other, thereby preventing the suction cup hanger from swinging back and forth.

[0008] Preferably, a telescopic connector is further provided between the first anti-sway connector and the second anti-sway connector, the first anti-sway connector and the second anti-sway connector are respectively connected to the two ends of the telescopic connector, and can slide relative to the telescopic connector in the vertical direction, and are relatively limited in the horizontal direction and circumferential direction with the telescopic connector, so as to extend the telescopic range of the anti-sway mechanism. The telescopic connector can be a plurality of sleeves with successively decreasing outer diameters, which can slide relative to each other along their axial direction, and are limited in the circumferential direction and radial direction.

[0009] Preferably, the first anti-sway connector, the second anti-sway connector and the telescopic connector are all in a square cylindrical structure, the first anti-sway connector is provided with a first sliding cavity with an open bottom, and the upper end of the telescopic connector is slidably connected in the first sliding cavity; the telescopic connector is provided with a second sliding cavity with an open bottom, and the upper end of the second anti-sway connector is slidably connected in the second sliding cavity. The first sliding cavity is adapted to the shape of the telescopic connector, so that the upper end of the telescopic connector can only slide along the first sliding cavity and cannot rotate in the circumferential direction; similarly, the second sliding cavity is adapted to the shape of the second anti-sway connector, and the upper end of the second anti-sway connector can only slide along the second sliding cavity and cannot rotate in the circumferential direction.

[0010] Preferably, the bridge frame includes a main beam, an end beam and a running mechanism; there are two main beams and two end beams, the two main beams are arranged in parallel, and the two ends of the two main beams are respectively connected to one of the end beams; the running mechanism is installed on the end beam and is used to drive the bridge frame to move along the rails.

[0011] Preferably, a ladder extending vertically downward is connected to one side wall of the bridge frame. The ladder is arranged at a corner of the side wall of the bridge frame, so that workers can climb up the bridge frame for maintenance without affecting the lifting of the pipe segments.

[0012] Preferably, the lifting mechanism includes a lifting platform and a lifting motor and a drum group installed on the lifting platform; a pulley group is connected to the top of the suction cup hoist, and the drum group is connected to the pulley group through a steel rope; the lifting motor is transmission connected to the drum group to drive the drum group to rotate and drive the suction cup hoist to rise and fall.

[0013] Preferably, a reducer is provided between the lifting motor and the drum assembly to reduce the speed of the drum assembly; at least one brake is provided on the transmission shaft between the lifting motor and the reducer to stop the lifting of the suction cup sling in time. The reducer plays a role in transmitting torque between the lifting motor and the drum assembly, reducing the speed and increasing the torque; the brake can stop the lifting mechanism in an emergency to reduce losses in the event of an accident.

[0014] Preferably, the suction cup hanger comprises a hanger frame and a vacuum cup, wherein the vacuum cup is mounted at the bottom of the hanger frame and connected to a vacuum pump. A plurality of suction nozzles are evenly distributed on the vacuum cup, and the suction nozzles are connected to a vacuum pump and can be firmly adsorbed on the surface of the pipe segment.

[0015] Preferably, there are three vacuum suction cups, one of which is fixedly mounted at the center of the bottom of the sling frame, and the other two are symmetrically mounted on both sides of the bottom of the sling frame, and the vacuum suction cups symmetrically mounted on both sides of the bottom of the sling frame are rotatably connected to the sling frame. Since the top of the pipe segment is curved, the vacuum suction cups on both sides are set to be rotatable, so that when the pipe segment is lifted, the vacuum suction cups on both sides will automatically adapt to the curvature of the pipe segment, better fit the surface of the pipe segment, and make it more firmly adsorbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is a schematic structural diagram of the lifting mechanism, suction cup hanger and anti-sway mechanism in the present invention.

[0018] Figure 3 It is a schematic diagram of the local structure of the present invention in a top view.

[0019] Figure 4 It is a structural schematic diagram of the bridge in the present invention.

[0020] Description of reference numerals: 1. Bridge frame, 11. Main beam, 12. End beam, 13. Operating mechanism, 14. Ladder, 2. Lifting mechanism, 21. Lifting platform, 22. Lifting motor, 23. Drum group, 24. Pulley group, 25. Reducer, 26. Brake, 3. Suction cup hoist, 31. Hoist frame, 32. Vacuum suction cup, 4. Anti-sway mechanism, 41. First anti-sway connector, 42. Second anti-sway connector, 43. Retractable connector, 5. Pipe segment. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. At the same time, the terms "first", "second", etc. are only used to distinguish the names of the components, and have no primary or secondary relationship, and therefore cannot be understood as a limitation on the present invention.

[0023] like Figure 1 and Figure 2 As shown, the present invention discloses a suction cup bridge crane for lifting pipe segments: it includes a bridge frame 1, a lifting mechanism 2 and a suction cup hanger 3; the bridge frame 1 is connected to the rail and can move along the rail, the lifting mechanism 2 is installed on the bridge frame 1, and is connected to the suction cup hanger 3 through a steel rope to drive the suction cup hanger 3 to rise and fall.

[0024] like Figure 4 As shown, the bridge frame 1 includes a main beam 11, an end beam 12 and a running mechanism 13; there are two main beams 11 and two end beams 12, and the two ends of the main beam 11 are respectively connected to one of the end beams 12, so that the bridge frame 1 is in a well shape as a whole; the running mechanism 13 is installed on the end beam 12, and can drive the bridge frame 1 to move along the rail. The running mechanism 13 includes a travel motor, a travel wheel, and a reduction box. The travel wheel is located on the rail. The travel motor is installed on the end beam 12 and is connected to the travel wheel through the reduction box to drive the travel wheel to rotate and drive the bridge frame 1 to move along the rail.

[0025] like Figure 1 As shown, a ladder 14 extending vertically downward is connected to the corner of one side wall of the bridge frame 1, so as to facilitate workers to climb up the bridge frame 1 for maintenance without affecting the lifting of the pipe segments 5.

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, the lifting mechanism 2 includes a lifting platform 21 and a lifting motor 22 and a drum group 23 installed on the lifting platform 21. A pulley group 24 is connected to the top of the suction cup hanger 3, and the drum group 23 is connected to the pulley group 24 through a steel rope. The lifting motor 22 is connected to the drum group 23 in transmission connection, and is used to drive the drum group 23 to rotate and drive the suction cup hanger 3 to rise and fall.

[0027] A speed reducer 25 is provided between the lifting motor 22 and the drum assembly 23 to reduce the rotation speed of the drum assembly 23; two brakes 26 are provided on the transmission shaft between the lifting motor 22 and the speed reducer 25 to stop the lifting of the suction cup sling 3 in time. The speed reducer 25 is a gear transmission component enclosed in a rigid housing, used as a speed reduction transmission between the lifting motor 22 and the drum assembly 23, reducing the rotation speed and increasing the torque; the brake 26 can stop the lifting mechanism 2 in an emergency to reduce the loss in the event of an accident.

[0028] For example Figure 1 and Figure 2 As shown, the suction cup hanger 3 includes a hanger frame 31 and a vacuum suction cup 32. The vacuum suction cup 32 is installed at the bottom of the hanger frame 31. A plurality of suction nozzles are evenly distributed on the vacuum suction cup 32. The suction nozzles are connected to the vacuum pump and can be firmly adsorbed on the surface of the pipe segment 5.

[0029] There are three vacuum suction cups 32, one of which is fixedly installed in the center of the bottom of the sling frame 31, and the other two are symmetrically installed on both sides of the bottom of the sling frame 31, and the vacuum suction cups 32 symmetrically installed on both sides of the bottom of the sling frame 31 are rotatably connected to the sling frame 31. Since the top of the pipe segment 5 is curved, the vacuum suction cups 32 on both sides are set to be rotatable. When the suction cup sling 3 descends, the vacuum suction cups 32 on both sides will be pressed down by the gravity of the sling frame 31, automatically adapt to the curvature of the pipe segment 5, better fit to the surface of the pipe segment 5, and make it more firmly adsorbed.

[0030] For example Figure 1 , Figure 2 and Figure 3 As shown, the suction cup bridge crane of the present invention also includes an anti-sway mechanism 4, which includes a first anti-sway connector 41 fixedly installed at the bottom center of the lifting platform 21 and a second anti-sway connector 42 installed at the top center of the sling frame 31. The first anti-sway connector 41 and the second anti-sway connector 42 both extend in the vertical direction; the lower end of the first anti-sway connector 41 is connected to the upper end of the second anti-sway connector 42, and the first anti-sway connector 41 and the second anti-sway connector 42 can slide relative to each other in the vertical direction and be relatively limited in the horizontal direction.

[0031] A telescopic connector 43 is also provided between the first anti-sway connector 41 and the second anti-sway connector 42. The first anti-sway connector 41 and the second anti-sway connector 42 are respectively connected to the two ends of the telescopic connector 43, and can slide relative to the telescopic connector 43 in the vertical direction, and be relatively limited in the horizontal direction and circumferential direction with the telescopic connector 43, so as to extend the telescopic range of the anti-sway mechanism 4.

[0032] The first anti-sway connector 41, the second anti-sway connector 42 and the telescopic connector 43 are all in a square cylindrical structure. The first anti-sway connector 41 is provided with a first sliding cavity with an open bottom, and the upper end of the telescopic connector 43 is slidably connected in the first sliding cavity; the telescopic connector 43 is provided with a second sliding cavity with an open bottom, and the upper end of the second anti-sway connector 42 is slidably connected in the second sliding cavity. The first sliding cavity should be adapted to the shape of the telescopic connector 43, so that the upper end of the telescopic connector 43 can only slide along the first sliding cavity and cannot rotate circumferentially. Similarly, the second sliding cavity is adapted to the shape of the second anti-sway connector 42, so that the upper end of the second anti-sway connector 42 can only slide along the second sliding cavity and cannot rotate circumferentially, so that the first anti-sway connector 41 and the second anti-sway connector 42 are relatively limited in the circumferential direction to prevent the suction cup hanger 3 from rotating and swinging back and forth.

[0033] The first anti-sway connector 41, the second anti-sway connector 42 and the telescopic connector 43 can also be other polygonal cylindrical structures, such as a regular hexagon, etc.; the first anti-sway connector 41, the second anti-sway connector 42 and the telescopic connector 43 can also be circular cylindrical structures, and a circumferential limit key needs to be set in the sliding cavity of the circular cylindrical structure to prevent it from relative circumferential rotation.

[0034] The telescopic connector 43 can be formed by sleeves of multiple sleeves with successively decreasing outer diameters, and the sleeves can slide relative to each other along their axial directions and be limited in circumferential and radial directions.

[0035] The present invention sets a first anti-sway connector 41 at the bottom of the lifting mechanism 2 and sets a second anti-sway connector 42 at the top of the suction cup hanger 3. When the lifting mechanism 2 drives the suction cup hanger 3 to rise and fall, the first anti-sway connector 41 and the second anti-sway connector 42 will slide relative to each other in the vertical direction, so that the anti-sway mechanism 4 can be synchronously extended and retracted without affecting the lifting and lowering of the suction cup hanger 3. At the same time, since the first anti-sway connector 41 and the second anti-sway connector 42 are relatively limited in the horizontal direction, when the bridge frame 1 moves, the suction cup hanger 3 will not swing left and right, thereby ensuring the lifting safety and improving the lifting efficiency.

[0036] When the present invention is demoulding and lifting the pipe segment, the on-site personnel need to confirm that the bridge 1 stops at the initialization position and click the "Task Start" button on the touch screen. Then the bridge 1 automatically moves from the initialization position to the demoulding station, and the suction cup hanger 3 descends to the top of the pipe segment 5 to adsorb the pipe segment 5. After the adsorption of the pipe segment 5 is completed, the suction cup hanger 3 rises to the vicinity of the upper limit position after the "Confirm Demolding" button is manually clicked on the touch screen, and then the bridge 1 automatically moves to the transfer position, places the pipe segment 5 on the placement rack and releases the pipe segment 5. Finally, the suction cup hanger 3 is reset, and the bridge 1 automatically moves to the initialization position.

[0037] The crane control system will collect location information, equipment status information, operation information, etc. in real time, and upload it to the touch screen system in real time. The touch screen system can monitor the operation of the crane in real time. If there is any abnormality, the crane will be stopped by the emergency stop button.

[0038] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A suction cup bridge crane for lifting pipe segments, comprising a bridge frame (1), a lifting mechanism (2) and a suction cup sling (3); the bridge frame (1) is connected to a steel rail and can move along the steel rail; the lifting mechanism (2) is installed on the bridge frame (1) and connected to the suction cup sling (3) via a steel rope to drive the suction cup sling (3) to rise and fall; the characteristics are: It also includes an anti-sway mechanism (4), the anti-sway mechanism (4) including a first anti-sway connector (41) fixedly mounted on the bottom of the lifting mechanism (2) and a second anti-sway connector (42) mounted on the top of the suction cup sling (3), the first anti-sway connector (41) being connected to the second anti-sway connector (42), and the first anti-sway connector (41) and the second anti-sway connector (42) being able to slide relative to each other in a vertical direction and being relatively limited in a horizontal direction.

2. The suction cup bridge crane for lifting pipe segments according to claim 1, characterized in that: The first anti-sway connection piece (41) and the second anti-sway connection piece (42) are circumferentially limited relative to each other.

3. The suction cup bridge crane for lifting pipe segments according to claim 2, characterized in that: A telescopic connection member (43) is further provided between the first anti-sway connection member (41) and the second anti-sway connection member (42); the first anti-sway connection member (41) and the second anti-sway connection member (42) are respectively connected to two ends of the telescopic connection member (43), and can slide relative to the telescopic connection member (43) in a vertical direction, and can be relatively limited in position relative to the telescopic connection member (43) in a horizontal direction and a circumferential direction, so as to extend the telescopic range of the anti-sway mechanism (4).

4. The suction cup bridge crane for lifting pipe segments according to claim 3 is characterized in that: The first anti-sway connection member (41), the second anti-sway connection member (42) and the telescopic connection member (43) are all in a square cylindrical structure; the first anti-sway connection member (41) is provided with a first sliding cavity with an open bottom, and the upper end of the telescopic connection member (43) is slidably connected in the first sliding cavity; the telescopic connection member (43) is provided with a second sliding cavity with an open bottom, and the upper end of the second anti-sway connection member (42) is slidably connected in the second sliding cavity.

5. The suction cup bridge crane for lifting pipe segments according to claim 1, characterized in that: The bridge frame (1) comprises a main beam (11), an end beam (12) and a running mechanism (13); the main beam (11) and the end beam (12) are both two, the two main beams (11) are arranged in parallel, and the two ends of the two main beams (11) are respectively connected to one of the end beams (12); the running mechanism (13) is installed on the end beam (12) and is used to drive the bridge frame (1) to move along the rail.

6. The suction cup bridge crane for lifting pipe segments according to claim 5, characterized in that: A ladder (14) extending vertically downward is connected to one side wall of the bridge frame (1).

7. The suction cup bridge crane for lifting pipe segments according to claim 1, characterized in that: The lifting mechanism (2) comprises a lifting platform (21) and a lifting motor (22) and a drum group (23) mounted on the lifting platform (21); a pulley group (24) is connected to the top of the suction cup sling (3); the drum group (23) is connected to the pulley group (24) via a steel rope; the lifting motor (22) is transmission-connected to the drum group (23) for driving the drum group (23) to rotate and drive the suction cup sling (3) to rise and fall.

8. The suction cup bridge crane for lifting pipe segments according to claim 7, characterized in that: A reducer (25) is also provided between the lifting motor (22) and the drum assembly (23) for reducing the rotation speed of the drum assembly (23); and at least one brake (26) is also provided on the transmission shaft between the lifting motor (22) and the reducer (25) for timely stopping the lifting of the suction cup sling (3).

9. The suction cup bridge crane for lifting pipe segments according to claim 1, characterized in that: The suction cup hanger (3) comprises a hanger frame (31) and a vacuum suction cup (32); the vacuum suction cup (32) is mounted on the bottom of the hanger frame (31) and connected to a vacuum extraction device.

10. The suction cup bridge crane for lifting pipe segments according to claim 9, characterized in that: There are three vacuum suction cups (32), one of which is fixedly mounted at the center of the bottom of the sling frame (31), and the other two are symmetrically mounted on both sides of the bottom of the sling frame (31), and the vacuum suction cups (32) symmetrically mounted on both sides of the bottom of the sling frame (31) are rotatably connected to the sling frame (31).

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