A prefabricated box girder translocation device

Abstract

The utility model discloses a prefabricated box girder translocation device belongs to prefabricated box girder technical field, including two cover beam, the top surface of two cover beam all is provided with a group of sleeper, and the top surface of two groups sleeper is fixedly connected with the guide base rail respectively. In the utility model, when needing to move the bearing slide, the extension of first electric hydraulic cylinder is used to push the bearing slide and the concrete prefabricated box girder to move, when needing to move the oil cylinder fixed seat, the second electric push rod is used to drive the second pin to insert into other insertion hole to fix the bearing slide, the first electric push rod is used to drive the first pin to move upwards to make its bottom end separate from the insertion hole and the inner chamber of guide base rail, thereby releasing the fixing between oil cylinder fixed seat and guide base rail, so as to use the contraction of first electric hydraulic cylinder to drive the oil cylinder fixed seat to move to the direction of approaching bearing slide, and the pin is not needed to be pulled by manpower, and the practicality is good.

Description

Technical Field

[0001] This utility model relates to the field of precast box girder technology, and more specifically, to a precast box girder transverse movement device. Background Technology

[0002] Precast box girders are concrete box girders that are prefabricated in a factory or prefabrication site. After being transported to the construction site, they are directly assembled into large-span structures. Compared with traditional cast-in-place box girders, precast box girders have the advantages of shorter production cycle, controllable quality, faster construction speed and lower cost. When erecting precast box girders, a transverse movement device is used for transverse movement.

[0003] A search revealed that utility model patent CN214243735U discloses a precast box girder lateral movement device, comprising two sets of parallel lateral movement mechanisms. The precast box girder spans across the two sets of lateral movement mechanisms. Each set of lateral movement mechanisms includes a guide rail, a load-bearing slide that can move along the guide rail, and a driving component for moving the load-bearing slide. Limiting side supports are installed at both ends of the load-bearing slide, located on both sides of the precast box girder. A top support body is fitted at the top of the limiting side supports to support the precast box girder at the intersection of the inclined web and flange plates. This device, by providing left and right limiting side supports on the load-bearing slide, can laterally limit the precast box girder, preventing the girder from shifting, swaying, or even becoming unstable on the sled during lateral movement. This device is not limited by site conditions and has a wide range of applications.

[0004] However, the aforementioned patent has the following shortcomings: when repeatedly adjusting the position of the drive cylinder on the guide rail, the connection between the cylinder fixing seat and the guide rail requires manual back-and-forth insertion and removal of the pin, which is not very convenient; in addition, when the guide rail is set below both ends of the precast box girder, it is not easy to ensure that the guide rail is in a parallel state. To address these issues, we propose a precast box girder lateral movement device. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a precast box girder transverse movement device.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A precast box girder lateral movement device includes two cap beams. Each cap beam has a set of sleepers on its top surface. Guide rails are fixedly connected to the top surfaces of the two sets of sleepers. Positioning mechanisms are provided at the ends of the two guide rails. Two support mechanisms are provided on each cap beam. Load-bearing slides are slidably connected to each of the two guide rails. Hydraulic cylinder mounting seats are slidably connected to each of the two guide rails. A precast concrete box girder is placed on each of the two load-bearing slides. Side bracing mechanisms are provided on each of the two load-bearing slides. A second connecting seat is fixedly connected to the top surface of each load-bearing slide. A first connecting seat is fixedly connected to the top surface of each hydraulic cylinder mounting seat. A first electric hydraulic cylinder is fixedly installed between the second connecting seat and the first connecting seat. The guide rails... The bottom surface of the cylinder has multiple sets of insertion holes. The top surface of the bearing slide is fixedly connected to a second bracket. A second electric push rod is fixedly installed on the second bracket. The output end of the second electric push rod extends to the inner side of the second bracket and is fixedly connected to a second lifting seat. The bottom surface of the second lifting seat is fixedly connected to two second pins. The bottom ends of the two second pins are respectively movably sleeved into the inner cavity of the insertion hole. The top surface of the cylinder fixing seat is fixedly connected to a first bracket. The top surface of the first bracket is fixedly installed to a first electric push rod. The output end of the first electric push rod extends to the inner side of the first bracket and is fixedly connected to a first lifting seat. The bottom surface of the first lifting seat is fixedly connected to two first pins. The bottom ends of the two first pins are respectively movably sleeved into the inner cavity of other insertion holes.

[0008] As a preferred embodiment of this utility model, the positioning mechanism includes a first detection seat fixedly connected to one end of the guide rail and a second detection seat fixedly connected to the other end of the guide rail. The second detection seat has a second mounting groove on its side, a beam emitter fixedly mounted on the inner wall of the second mounting groove, and a laser rangefinder fixedly mounted on the inner wall of the second mounting groove. The first detection seat has a first mounting groove on its side, a beam receiving mirror fixedly connected to the inner wall of the first mounting groove, and a distance detection block fixedly connected to the inner wall of the first mounting groove.

[0009] As a preferred embodiment of this utility model, the support mechanism includes a placement seat placed on the top surface of the cap beam, a vertical jack fixedly installed on the placement seat, a lifting block fixedly connected to the top surface of the vertical jack, and the top surface of the lifting block being in contact with the bottom surface of the side of the precast concrete box girder.

[0010] As a preferred embodiment of this utility model, the side support mechanism includes two rotating frames fixedly connected to the top surface of the bearing slide, with rotating seats rotatably connected to each of the two rotating frames. A second electric hydraulic cylinder is fixedly installed on the top of each of the two rotating seats, and an arc-shaped top support is fixedly connected to the top of each of the two second electric hydraulic cylinders. The top of the arc-shaped top support contacts the corner of the side of the precast concrete box girder.

[0011] In a preferred embodiment of this utility model, the inner diameter of the insertion hole is equal to the outer diameter of the second pin and the first pin.

[0012] As a preferred embodiment of this utility model, a plurality of rollers are rotatably connected to the inner side of the guide rail, and the top surface of the rollers is respectively in contact with the top surface of the bearing slide and the inner cavity of the cylinder fixing seat.

[0013] As a preferred embodiment of this utility model, a storage battery is provided inside the first detection seat, and a control panel is fixedly installed on the side of the first detection seat.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) In this utility model, when it is necessary to move the bearing slide, the second electric push rod is used to drive the second pin to move upward so that its bottom end is separated from the inner cavity of the insertion hole and the guide rail, thereby releasing the fixation between the guide rail and the bearing slide. The extension of the first electric hydraulic cylinder is used to push the bearing slide and the precast concrete box girder to move. When it is necessary to move the cylinder fixing seat, the second electric push rod is used to drive the second pin to insert into other insertion holes to fix the bearing slide. The first electric push rod is used to drive the first pin to move upward so that its bottom end is separated from the inner cavity of the insertion hole and the guide rail, thereby releasing the fixation between the cylinder fixing seat and the guide rail. In order to use the contraction of the first electric hydraulic cylinder to drive the cylinder fixing seat to move towards the bearing slide, without the need for manual removal of the pin.

[0016] (2) In this utility model, when the guide rails are placed on the two cover beams, the beam emitters on the two second detection seats emit beams to the two first detection seats, so that the two beams respectively irradiate the middle of the beam receiving mirrors on the two first detection seats. Through the cooperation of the beam emitters and the beam receiving mirrors, the two guide rails are in a parallel state. In addition, the laser rangefinders on the two second detection seats measure the distance of the distance detection blocks on the two first detection seats, thereby controlling the distance between the laser rangefinders and the distance detection blocks, and thus controlling the distance between the two guide rails. It has good practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the guide rail of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the bearing slide of this utility model;

[0020] Figure 4This is a cross-sectional schematic diagram of the bearing slide of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the second detection seat of this utility model;

[0022] Figure 6 This is a cross-sectional schematic diagram of the first detection seat of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Cap beam; 2. Sleeper; 3. Guide rail; 4. Positioning mechanism; 5. Support mechanism; 6. Load-bearing slide; 7. Side bracing mechanism; 8. Precast concrete box girder; 9. Hydraulic cylinder fixing seat; 10. Second connecting seat; 11. First connecting seat; 12. First electric hydraulic cylinder; 13. First bracket; 14. First electric push rod; 15. First lifting seat; 16. First pin; 17. Second bracket; 18. Second electric push rod; 19. Second lifting seat; 20. Second 21. Pin; 22. Insertion hole; 23. Idler roller; 24. First detection seat; 25. Second detection seat; 26. Second mounting slot; 27. Beam emitter; 28. Laser rangefinder; 29. ​​First mounting slot; 30. Beam receiving mirror; 31. Distance detection block; 32. Battery; 33. Control panel; 34. Rotating frame; 35. Rotating seat; 36. Second electric hydraulic cylinder; 37. Arc top support; 38. Placement seat; 39. Vertical jack; 30. Lifting block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1:

[0029] Please see Figure 1-6 A precast box girder lateral movement device includes two cap beams 1, each cap beam 1 having a set of sleepers 2 on its top surface. Guide rails 3 are fixedly connected to the top surfaces of the two sets of sleepers 2. Positioning mechanisms 4 are provided at the ends of the two guide rails 3. Two support mechanisms 5 are provided on each cap beam 1. Bearing slides 6 are slidably connected to each of the two guide rails 3. Hydraulic cylinder fixing seats 9 are slidably connected to each of the two guide rails 3. A precast concrete box girder 8 is placed on each of the two bearing slides 6. Side support mechanisms 7 are provided on each of the two bearing slides 6. A second connecting seat 10 is fixedly connected to the top surface of the bearing slide 6. A first connecting seat 11 is fixedly connected to the top surface of the hydraulic cylinder fixing seat 9. A first electric hydraulic cylinder 12 is fixedly installed between the second connecting seat 10 and the first connecting seat 11. Multiple sets of inserts are provided on the bottom surface of the guide rails 3. A second bracket 17 is fixedly connected to the top surface of the bearing slide 6 in hole 21. A second electric push rod 18 is fixedly installed on the second bracket 17. The output end of the second electric push rod 18 extends to the inner side of the second bracket 17 and is fixedly connected to a second lifting seat 19. Two second pins 20 are fixedly connected to the bottom surface of the second lifting seat 19. The bottom ends of the two second pins 20 are respectively movably sleeved into the inner cavity of the insertion hole 21. A first bracket 13 is fixedly connected to the top surface of the cylinder fixing seat 9. A first electric push rod 14 is fixedly installed on the top surface of the first bracket 13. The output end of the first electric push rod 14 extends to the inner side of the first bracket 13 and is fixedly connected to a first lifting seat 15. Two first pins 16 are fixedly connected to the bottom surface of the first lifting seat 15. The bottom ends of the two first pins 16 are respectively movably sleeved into the inner cavity of other insertion holes 21.

[0030] For details, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6The positioning mechanism 4 includes a first detection seat 23 fixedly connected to one end of the guide rail 3 and a second detection seat 24 fixedly connected to the other end of the guide rail 3. The side of the second detection seat 24 is provided with a second mounting groove 25. A beam emitter 26 is fixedly installed on the inner wall of the second mounting groove 25. A laser rangefinder 27 is fixedly installed on the inner wall of the second mounting groove 25. The side of the first detection seat 23 is provided with a first mounting groove 28. A beam receiving mirror 29 is fixedly connected to the inner wall of the first mounting groove 28. A distance detection block 30 is fixedly connected to the inner wall of the first mounting groove 28.

[0031] In this embodiment, the first detection seat 23 and the second detection seat 24 at both ends of the two guide rails 3 are in opposite positions, so that the beam emitter 26 and the laser rangefinder 27 on the first detection seat 23 at the end of one guide rail 3 are directly facing the beam receiving mirror 29 and the distance detection block 30 on the second detection seat 24 at the end of the other guide rail 3, so that the light emitted by the beam emitter 26 illuminates the beam receiving mirror 29, and the distance between the laser rangefinder 27 and the distance detection block 30 is detected by the laser rangefinder 27.

[0032] For details, please refer to Figure 1 The support mechanism 5 includes a placement seat 37 placed on the top surface of the cap beam 1. A vertical jack 38 is fixedly installed on the placement seat 37. A lifting block 39 is fixedly connected to the top surface of the vertical jack 38. The top surface of the lifting block 39 is in contact with the bottom surface of the side of the precast concrete box beam 8.

[0033] In this embodiment, after the precast concrete box girder 8 is moved laterally to a suitable position, the precast concrete box girder 8 is lifted by the placement seat 37, the vertical jack 38 and the lifting block 39 so that the sleepers 2, the guide rail 3, the bearing slide 6, the side support mechanism 7 and other structures can be disassembled.

[0034] For details, please refer to Figure 1 , Figure 2 and Figure 4 The side support mechanism 7 includes two rotating frames 33 fixedly connected to the top surface of the bearing slide 6. Rotating seats 34 are rotatably connected to the two rotating frames 33 respectively. Second electric hydraulic cylinders 35 are fixedly installed on the top of the two rotating seats 34 respectively. Arc top supports 36 are fixedly connected to the top of the two second electric hydraulic cylinders 35 respectively. The top of the arc top support 36 contacts the corner of the side of the precast concrete box girder 8.

[0035] In this embodiment, the second electric hydraulic cylinder 35 drives the arc top support 36 to move upward to support the corner of the side of the precast concrete box girder 8. The rotating frame 33, rotating seat 34, second electric hydraulic cylinder 35 and arc top support 36 at both ends of the top of the bearing slide 6 support and limit the precast concrete box girder 8.

[0036] For details, please refer to Figure 3 and Figure 4 The inner diameter of the socket 21 is equal to the outer diameter of the second pin 20 and the first pin 16.

[0037] In this embodiment, the stability of the insertion hole 21 into the inner cavity of the second pin 20 and the first pin 16 is ensured, thereby ensuring the stability of fixing the bearing slide 6 and the cylinder fixing seat 9.

[0038] For details, please refer to Figures 2 to 4 Multiple rollers 22 are rotatably connected to the inner side of the guide rail 3. The top surface of the rollers 22 is in contact with the top surface of the inner cavity of the bearing slide 6 and the cylinder fixing seat 9, respectively.

[0039] In this embodiment, the support roller 22 is used to support the bearing slide 6 and the cylinder fixing seat 9, while ensuring that the bearing slide 6 and the cylinder fixing seat 9 can move smoothly on the guide rail 3.

[0040] For details, please refer to Figure 6 The first detection base 23 has a battery 31 installed inside, and a control panel 32 is fixedly installed on the side of the first detection base 23.

[0041] In this embodiment, the device is powered by a storage battery 31 and controlled by a control panel 32.

[0042] Working Principle: In use, firstly, place the two guide rails 3 on the two cover beams 1. Use the sleepers 2 at the bottom of the guide rails 3 to support them, ensuring that the second detection seat 24 at one end of each guide rail 3 and the first detection seat 23 at the other end are facing each other. Simultaneously, activate the beam emitters 26 on the two second detection seats 24 to emit beams towards the two first detection seats 23, so that the two beams respectively illuminate the center of the beam receiving mirrors 29 on the two first detection seats 23. This ensures that the two guide rails 3 are parallel through the cooperation of the beam emitters 26 and the beam receiving mirrors 29. Additionally, use the laser rangefinders 27 on the two second detection seats 24 to measure the distance to the distance detection blocks 30 on the two first detection seats 23. The distance between the laser rangefinder 27 and the distance detection block 30 is controlled, thereby controlling the distance between the two guide rails 3. Then, a crane is used to lift the precast concrete box girder 8, placing it on the bearing slide 6 at the top of the two guide rails 3. The arc-shaped support 36 is rotated and placed on the side of the precast concrete box girder 8. The second electric hydraulic cylinder 35 drives the arc-shaped support 36 upward, so that the arc-shaped support 36 is inserted at the corner of the side of the precast concrete box girder 8 to limit its movement. Then, the second electric push rod 18 drives the second lifting seat 19 and the second pin 20 upward, so that the second pin 20 disengages from the insertion hole 21 and the inner cavity of the guide rail 3. The first electric hydraulic cylinder 12 is then activated to push the second lifting seat 19. The connecting seat 10, the bearing slide 6, and the precast concrete box girder 8 move to laterally shift the position of the precast concrete box girder 8. When the first electric hydraulic cylinder 12 is fully extended but still cannot move the precast concrete box girder 8 to the predetermined position, the second electric push rod 18 is activated to drive the second lifting seat 19 and the second pin 20 downward, so that the second pin 20 is inserted into another set of insertion holes 21, thereby fixing the bearing slide 6 and the guide rail 3. In addition, the first electric push rod 14 is activated to drive the first pin 16 upward to disengage from the insertion hole 21 and the inner cavity of the guide rail 3, thereby releasing the fixation between the guide rail 3 and the cylinder fixing seat 9. At this time, the first electric hydraulic cylinder 12 is activated to retract, thereby driving the cylinder fixing seat 9 to move closer to the bearing slide 6. After the cylinder fixing seat 9 moves, the first electric push rod 14 drives the first lifting seat 15 and the first pin 16 to move down again, so that the first pin 16 is inserted into the other insertion holes 21 to fix the cylinder fixing seat 9. Then, the second electric push rod 18 drives the second pin 20 to disengage from the inner cavity of the insertion hole 21 again, so that the extension of the first electric hydraulic cylinder 12 can continue to push the bearing slide 6 and the precast concrete box girder 8 to move laterally until the precast concrete box girder 8 moves to the predetermined position. Finally, two support mechanisms 5 are placed on the cap beam 1, and the placement seat 37 at the bottom of the support mechanism 5 is placed on the top surface of the cap beam 1, and the lifting block 39 is placed below both sides of the cap beam 1. The vertical jack 38 drives the lifting block 39 to move up to lift the precast concrete box girder 8.This allows the sleepers 2, guide rails 3, and load-bearing slides 6 to be removed from under the precast concrete box girder 8, so that the vertical jacks 38 can be used to lower the lifting blocks 39, allowing the precast concrete box girder 8 to be placed on the cap beam 1.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A precast box girder transverse movement device, comprising two cap beams (1), characterized in that: Each of the two cap beams (1) has a set of sleepers (2) on its top surface. Guide rails (3) are fixedly connected to the top surfaces of the two sets of sleepers (2). Positioning mechanisms (4) are provided at the ends of the two guide rails (3). Two support mechanisms (5) are provided on each of the two cap beams (1). Bearing slides (6) are slidably connected to each of the two guide rails (3). Hydraulic cylinder fixing seats (9) are slidably connected to each of the two guide rails (3). A precast concrete box girder (8) is placed on the seat (6). Side support mechanisms (7) are provided on both of the two bearing slides (6). A second connecting seat (10) is fixedly connected to the top surface of the bearing slide (6). A first connecting seat (11) is fixedly connected to the top surface of the cylinder fixing seat (9). A first electric hydraulic cylinder (12) is fixedly installed between the second connecting seat (10) and the first connecting seat (11). Multiple sets of insertion holes (21) are opened on the bottom surface of the guide rail (3). A second bracket (17) is fixedly connected to the top surface of the bearing slide (6). A second electric push rod (18) is fixedly installed on the second bracket (17). The output end of the second electric push rod (18) extends to the inner side of the second bracket (17) and is fixedly connected to a second lifting seat (19). Two second pins (20) are fixedly connected to the bottom surface of the second lifting seat (19). The bottom ends of the two second pins (20) are respectively movably sleeved into the inner cavity of the insertion hole (21). A first bracket (13) is fixedly connected to the top surface of the cylinder fixing seat (9). A first electric push rod (14) is fixedly installed on the top surface of the first bracket (13). The output end of the first electric push rod (14) extends to the inner side of the first bracket (13) and is fixedly connected to a first lifting seat (15). Two first pins (16) are fixedly connected to the bottom surface of the first lifting seat (15). The bottom ends of the two first pins (16) are respectively movably sleeved into the inner cavity of other insertion holes (21).

2. The precast box girder transverse movement device according to claim 1, characterized in that: The positioning mechanism (4) includes a first detection seat (23) fixedly connected to one end of the guide rail (3) and a second detection seat (24) fixedly connected to the other end of the guide rail (3). The second detection seat (24) has a second mounting groove (25) on its side. A beam emitter (26) is fixedly installed on the inner wall of the second mounting groove (25). A laser rangefinder (27) is fixedly installed on the inner wall of the second mounting groove (25). The first detection seat (23) has a first mounting groove (28) on its side. A beam receiving mirror (29) is fixedly connected to the inner wall of the first mounting groove (28). A distance detection block (30) is fixedly connected to the inner wall of the first mounting groove (28).

3. The precast box girder transverse movement device according to claim 1, characterized in that: The support mechanism (5) includes a placement seat (37) placed on the top surface of the cap beam (1), a vertical jack (38) is fixedly installed on the placement seat (37), a lifting block (39) is fixedly connected to the top surface of the vertical jack (38), and the top surface of the lifting block (39) is in contact with the bottom surface of the side of the precast concrete box girder (8).

4. The precast box girder transverse movement device according to claim 1, characterized in that: The side support mechanism (7) includes two rotating frames (33) fixedly connected to the top surface of the bearing slide (6). Rotating seats (34) are rotatably connected to the two rotating frames (33). A second electric hydraulic cylinder (35) is fixedly installed on the top of each of the two rotating seats (34). An arc top support (36) is fixedly connected to the top of each of the two second electric hydraulic cylinders (35). The top of the arc top support (36) is in contact with the corner of the side of the precast concrete box girder (8).

5. A precast box girder transverse movement device according to claim 1, characterized in that: The inner diameter of the insertion hole (21) is equal to the outer diameter of the second pin (20) and the first pin (16).

6. The precast box girder transverse movement device according to claim 1, characterized in that: Multiple rollers (22) are rotatably connected to the inner side of the guide rail (3), and the top surface of the rollers (22) is in contact with the top surface of the inner cavity of the bearing slide (6) and the cylinder fixing seat (9).

7. A precast box girder transverse movement device according to claim 2, characterized in that: The first detection seat (23) is equipped with a battery (31) inside, and a control panel (32) is fixedly installed on the side of the first detection seat (23).

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