Assembly type bridge superstructure assembling and shifting device

Abstract

The utility model provides an assembly type bridge superstructure assembling and shifting device. Relates to the field of assembly type bridge auxiliary equipment, and aims to solve the problem that the position is inconvenient to adjust when a main beam and a cover beam of an existing assembly type bridge structure are assembled. The transmission belt bears the assembled main beam and can conduct position adjustment in the axial direction of the main beam, meanwhile, the lifting mechanism can drive the transmission belt and the main beam to conduct height adjustment, the walking trolley moves along the sliding rail and can conduct adjustment in the axial direction of the cover beam, three-axis adjustment is jointly achieved, the position of the main beam is stable and controllable in the assembling process, and the assembling efficiency is improved. And the construction precision and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary equipment for assembled bridges, and particularly relates to a device for assembling and displacing the upper structure of an assembled bridge. Background Technique

[0002] The main or all components of an assembled bridge are processed and formed in a precast component factory and transported to the construction site for splicing to form the main body of the bridge. Compared with traditional cast-in-place beams, the quality of assembled bridges is more stable and controllable, and the construction is more convenient.

[0003] The key to the structural performance and rapid construction of assembled bridges lies in the connection strength and assembly efficiency between components. At present, when assembling the main girders of the upper structure of an assembled bridge (such as T-beams, small box girders, and hollow slab girders), crawler cranes or bridge erecting machines are usually used to hoist and position each main girder in sequence, and then the transverse diaphragms between the main girders are cast in situ to complete the transverse connection. However, there are some problems in the construction. The accuracy of hoisting and positioning the main girders is not easy to control, and it is difficult to make secondary adjustments after the main girders are in place. The overall position is at a high altitude, and the construction difficulty is great. Content of the Utility Model

[0004] The purpose of the utility model is to provide a device for assembling and displacing the upper structure of an assembled bridge aiming at the defects existing in the prior art. A slide rail is arranged on the capping beam, and a traveling trolley is arranged on the slide rail. A lifting mechanism and a transmission belt are configured on the traveling trolley. The transmission belt bears the assembled main girder and can adjust the position along the axial direction of the main girder. At the same time, the lifting mechanism can drive the transmission belt and the main girder to adjust the height. The traveling trolley moving along the slide rail can realize the adjustment along the axial direction of the capping beam, and together realize the three-axis adjustment, so that the position of the main girder during the assembly process is stable and controllable, and the construction accuracy and efficiency are improved.

[0005] In order to achieve the above purpose, the following technical solutions are adopted:

[0006] A device for assembling and displacing the upper structure of an assembled bridge includes:

[0007] A slide rail arranged on the capping beam;

[0008] A traveling trolley that bears the main girder and moves along the slide rail. The traveling trolley is provided with a lifting mechanism and a transmission belt. The lifting mechanism is connected to a bearing plate and the traveling trolley. The transmission belt is installed on the bearing plate. The top of the transmission belt is a bearing surface in contact with the main girder. The transmission belt is matched with a rotary driving part for driving its rotation. The lifting mechanism drives the bearing plate and the transmission belt to lift vertically. The direction in which the bearing surface of the transmission belt drives the main girder to move is orthogonal to the moving direction of the traveling trolley.

[0009] Furthermore, the traveling trolley includes an open box body. The circumferential side wall of the bearing plate is slidably matched with the circumferential inner wall of the open box body. The sliding direction of the bearing plate relative to the open box body is the same as the lifting direction of the bearing plate.

[0010] Further, the lifting mechanism is located inside the open box body and is between the inner bottom surface of the open box body and the bearing plate.

[0011] Further, the lifting mechanism includes a scissor structure and a telescopic oil cylinder. Rotating supports and chutes are respectively arranged at both ends of the scissor structure. One end of the scissor structure is connected to the bearing plate, and the other end is connected to the traveling trolley. The telescopic oil cylinder is connected to the scissor structure and drives the scissor structure to open and close.

[0012] Further, the bearing plate is a grooved plate with grooves. The transmission belt is located in the grooves, and both sides of the transmission belt are respectively installed on the side surfaces of the grooves.

[0013] Further, the transmission belt is provided with rollers. Both ends of the rollers are respectively rotatably connected to the grooved plate, and the rollers support and tension the transmission belt.

[0014] Further, the rotary driving member includes a motor. The transmission belt is provided with a plurality of rollers. One roller located at the end of the transmission belt serves as a driving roller. The output end of the motor is connected to the driving roller, and the driving roller is attached to the transmission belt to drive the transmission belt to rotate.

[0015] Further, along the direction of driving the main beam to move on the bearing surface, the grooves of the grooved plate are through grooves. The top ends of the side plates on both sides of the grooved plate extend to the upper part of the plane where the bearing surface is located, forming a limiting structure on the side of the bearing surface.

[0016] Further, a plurality of traveling trolleys are arranged on the slide rail.

[0017] Further, the slide rail is provided with channels distributed along its axial direction, and the lower end of the traveling trolley is located in the channels.

[0018] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0019] (1) Aiming at the problem that it is inconvenient to adjust the position during the assembly of the main beam and the capping beam of the current prefabricated bridge structure, a slide rail is arranged on the capping beam, and traveling trolleys are arranged on the slide rail. The traveling trolleys are equipped with a lifting mechanism and a transmission belt. The transmission belt bears the assembled main beam and can perform position adjustment along the axial direction of the main beam. At the same time, the lifting mechanism can drive the transmission belt and the main beam to perform height adjustment. The movement of the traveling trolley along the slide rail can realize the adjustment along the axial direction of the capping beam, jointly realizing three-axis adjustment, making the position of the main beam stable and controllable during the assembly process, and improving the construction accuracy and efficiency.

[0020] (2) The transverse assembly of the main girder is carried out by using slide rails and traveling trolleys, and it can adapt to the assembly of the main girder with precast cross diaphragms. First, the two ends of the main girder are respectively placed on the traveling trolleys arranged on the corresponding capping beams. When assembling the cross diaphragms, the traveling trolleys are lifted so that the main girder is above the bearings. With the transverse movement, height adjustment and longitudinal fine adjustment of the traveling trolleys, the assembly of the cross diaphragms is completed. Then, the height of the lifting plate is lowered so that the traveling trolleys drive the main girder to fall until the two ends of the main girder are placed on the bearings on the capping beams, improving the construction accuracy and construction efficiency. Brief Description of the Drawings

[0021] The schematic drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0022] Figure 1 It is a top view schematic diagram of the assembly and displacement device for the upper structure of a prefabricated bridge after being arranged on the capping beam in the embodiment of the present utility model.

[0023] Figure 2 It is a cross-sectional view of the slide rail of the assembly and displacement device for the upper structure of a prefabricated bridge in the embodiment of the present utility model.

[0024] Figure 3 It is a side view of the assembly and displacement device for the upper structure of a prefabricated bridge in the embodiment of the present utility model.

[0025] Figure 4 It is Figure 2 the cross-sectional schematic diagram at B-B in

[0026] Figure 5 It is Figure 3 the cross-sectional schematic diagram at A-A in

[0027] In the drawings, 1 is the capping beam, 2 is the bearing, 3 is the slide rail, 4 is the traveling trolley, 5 is the bearing pad stone, 6 is the roller, 7 is the driving roller, 8 is the motor, 9 is the transmission belt, 10 is the first strut, 11 is the second strut, 12 is the chute, 13 is the rotating bearing, 14 is the rolling bearing, 15 is the bearing plate, 16 is the open box body, 17 is the telescopic oil cylinder, 18 is the connecting rod, 19 is the supporting roller, 20 is the support frame, 21 is the transmission chain. Detailed Embodiment

[0028] In a typical embodiment of the present utility model, as Figures 1 - 5 shown, an assembly and displacement device for the upper structure of a prefabricated bridge is proposed.

[0029] Next, an assembly and displacement device for the upper structure of a prefabricated bridge will be described in detail with reference to the drawings.

[0030] Refer to Figure 1, The assembling and displacement device for the upper structure of the prefabricated bridge includes a slide rail 3 arranged on the capping beam 1 and a traveling trolley 4 moving along the slide rail 3. The top of the traveling trolley 4 can carry the main beam to be assembled, and the bottom can move along the slide rail 3. The traveling trolley 4 can drive the carried main beam to move along the axial direction and vertically of the main beam to adjust the position of the main beam. At the same time, when the traveling trolley 4 moves along the slide rail 3, it can drive the carried main beam to move along the axial direction of the capping beam 1, jointly realizing three-axis movement, meeting the requirement of adjusting the position during the assembly of the main beam, and improving the efficiency of high-altitude operation and the accuracy during the assembly construction.

[0031] The bearing 2 is placed on the bearing pad stone 5, and the slide rail 3 is arranged on the capping beam 1, on one side of the bearing 2. When the end of the main beam is placed, it should extend beyond the traveling trolley 4 and be located above the bearing 2; both ends of the slide rail 3 are within the overhangs at both ends of the capping beam 1. The bottom of the slide rail 3 is temporarily connected to the capping beam 1, and both ends are temporarily consolidated with the protruding parts at both ends of the capping beam 1.

[0032] In addition, limit blocks can be set at both ends of the slide rail 3 to prevent the traveling trolley 4 from derailing during movement. The slide rail 3 is provided with channels distributed along its axial direction, so that the cross-section of the slide rail 3 perpendicular to the axial direction is concave-shaped, meeting the limit requirements when the traveling trolley 4 is running.

[0033] In this embodiment, for the convenience of description, the capping beam 1 is arranged along the transverse bridge direction, the transverse bridge direction is set as the X direction, the main beam erected on the capping beam 1 is arranged along the longitudinal bridge direction, the longitudinal bridge direction is set as the Y direction, and the vertical direction is the Z direction.

[0034] The bottom of the traveling trolley 4 is provided with wheels. The wheels can be connected to corresponding power components, such as an electric motor 8, a hydraulic motor, etc., or can also be pushed by an external force, such as setting a jacking hydraulic cylinder, etc., to change the relative position between the traveling trolley 4 and the slide rail 3, and the traveling trolley 4 drives the adjustment in the X direction of the capping beam 1.

[0035] As Figure 2 shown, the traveling trolley 4 can carry the main beam and move along the slide rail 3. The traveling trolley 4 is provided with a lifting mechanism and a transmission belt 9. The lifting mechanism is used as a component to drive the main beam to move in the Z direction, and the transmission belt 9 is used as a component to drive the main beam to move in the Y direction.

[0036] Specifically, the lifting mechanism is connected to the bearing plate 15 and the traveling trolley 4. The transmission belt 9 is installed on the bearing plate 15. The top of the transmission belt 9 is the bearing surface in contact with the main beam. The transmission belt 9 is equipped with a rotary driving part to drive its rotation. When the transmission belt 9 rotates, it drives the main beam in contact with the bearing surface to adjust in the Y direction.

[0037] The lifting mechanism drives the bearing plate 15 and the transmission belt 9 to lift vertically. When the lifting mechanism acts, it drives the main beam to adjust in the Z direction.

[0038] The direction in which the bearing surface of the transmission belt 9 drives the main beam to move is orthogonal to the moving direction of the traveling trolley 4, jointly forming a structure for three-axis adjustment of the position of the main beam.

[0039] As Figure 3 , Figure 4 shown, the traveling trolley 4 includes an open box body 16. The circumferential side wall of the bearing plate 15 is in sliding fit with the circumferential inner wall of the open box body 16. The sliding direction of the bearing plate 15 relative to the open box body 16 is the same as the lifting direction of the bearing plate 15. Through the relative sliding between the bearing plate 15 and the open box body 16, the position of the bearing plate 15 in the horizontal direction can be restricted, avoiding the offset of the bearing plate 15.

[0040] The lifting mechanism is located inside the open box body 16 and is between the inner bottom surface of the open box body 16 and the bearing plate 15. The lower end of the traveling trolley 4 is located in the chute to prevent the bearing plate 15 from disengaging from the open box body 16.

[0041] The bearing surface of the traveling trolley 4 abuts against the bottom surface of the main beam within both ends of the main beam. After the bearing plate 15 of the traveling trolley 4 descends to the lowest position, the bearing surface of the traveling trolley 4 is located below the bottom surface of the main beam resting on the support 2, thus facilitating the traveling trolley 4 to avoid the bottom surface of the main beam for position adjustment. After the traveling trolley 4 rises to the highest position, the groove of the traveling trolley 4 is located above the top surface of the support 2, thus facilitating the traveling trolley 4 to lift the main beam across the support 2 for position adjustment.

[0042] As Figure 4 and Figure 5 shown, the lifting mechanism includes a scissor structure and a telescopic oil cylinder 17. Both ends of the scissor structure are respectively fitted with a rotating support 13 and a chute 12. One end of the scissor structure is connected to the bearing plate 15, and the other end is connected to the traveling trolley 4. The telescopic oil cylinder 17 is connected to the scissor structure and drives the scissor structure to open and close.

[0043] Specifically, the scissor structure is composed of a first strut 10 and a second strut 11. The intersecting position of the first strut 10 and the second strut 11 is connected by a rotating shaft. One end of the first strut 10 is hinged to the inner bottom surface of the open box body 16 through a rotating support 13, and the other end is fitted with the chute 12 arranged on the bearing plate 15 through a connecting rod 18. One end of the second strut 11 is hinged to the bottom surface of the bearing plate 15 through a rotating support 13, and the other end is fitted with the chute 12 arranged on the inner bottom surface of the open box body 16 through a connecting rod 18. Moreover, the end of the connecting rod 18 is fitted with the chute 12 through a rolling bearing 14. When the scissor structure acts, one end of the first strut 10 and the second strut 11 can rotate around their corresponding rotating supports 13, and the other ends of the first strut 10 and the second strut 11 can drive the connecting rod 18 to slide along the chute 12, changing the distance between one end of the first strut 10 and one end of the second strut 11.

[0044] One end of the telescopic oil cylinder 17 is hinged to the inner bottom surface of the open box body 16, and the other end is hinged to the connecting rod 18 installed in the bottom chute 12 of the bearing plate 15. When the telescopic oil cylinder 17 expands and contracts, it can drive the scissor structure to open and close, realizing the adjustment of the distance between the bearing plate 15 and the open box body 16.

[0045] The bearing plate 15 is a grooved plate with a groove. The transmission belt 9 is located in the groove, and both sides of the transmission belt 9 are respectively installed on the side surfaces of the groove. Along the direction of driving the main beam on the bearing surface, the groove of the grooved plate is a through groove, and the top ends of the side plates on both sides of the grooved plate extend to the upper part of the plane where the bearing surface is located, forming a limiting structure on the side of the bearing surface.

[0046] The transmission belt 9 is provided with rollers 6. Both ends of the rollers 6 are respectively rotatably connected to the grooved plate, and the rollers 6 support and tension the transmission belt 9. As Figure 3 shown, the transmission belt 9 is provided with multiple rollers 6. In this embodiment, the transmission belt 9 is provided with 3 rollers. Both horizontal ends of the transmission belt 9 are respectively provided with rollers 6. One of the rollers 6 at one end of the transmission belt 9 can be used as a driving part to drive the transmission belt 9 to rotate. The roller 6 serving as the driving part is the driving roller 7, and one of the rollers 6 at the other end of the transmission belt 9 is the driven roller.

[0047] For the driving roller 7, it can be driven by a rotary driving part. The rotary driving part includes a motor 8. The output end of the motor 8 is connected to the driving roller 7. The driving roller 7 is attached to the transmission belt 9 to drive the transmission belt 9 to rotate. Moreover, the transmission wrap angle formed at the position where the driving roller 7 is attached to the transmission belt 9 is greater than or equal to 180°, forming good surface contact friction transmission to meet the requirement of driving the transmission belt 9 to rotate.

[0048] In this embodiment, as Figure 3 and Figure 4 shown, a driven sprocket is installed on the driving roller 7, and a driving sprocket is installed on the motor 8. The driving sprocket and the driven sprocket are connected by a transmission chain 21, so that the rotation of the motor 8 can drive the rotation of the driving roller 7, and further drive the transmission belt 9 to rotate.

[0049] As Figure 3 shown, in order to ensure the stable operation of the transmission belt 9, a third roller 6 for auxiliary support is also provided between the rollers 6 at both ends, and a support roller 19 is arranged below the transmission belt 9. The support roller 19 and the third roller 6 are distributed oppositely to jointly maintain the stable operation of the transmission belt 9. At the same time, the support roller 19 is installed on the bearing plate 15 through a support frame 20. Both ends of the support roller 19 are respectively rotatably connected to the support frame 20 through bearings.

[0050] During the construction of prefabricated bridges, there are working conditions that require the position adjustment of multiple main girders. Therefore, multiple traveling trolleys 4 can be arranged on the slide rail 3. The traveling trolleys 4 can move independently or be linked with each other. According to the requirements during the assembly process, corresponding actions are executed.

[0051] The working process of the upper structure assembly and displacement device of the prefabricated bridge during actual construction is as follows:

[0052] 1. Place the slide rail 3 and the traveling trolleys 4 on the capping beam 1, on one side of the bearing 2, and adjust the height of the traveling trolleys 4 so that the height of the bearing surface on the traveling trolleys 4 is higher than the top surface height of the bearing 2, ensuring that when the main girder is placed, it will not contact the bearing 2;

[0053] 2. Hoist the main girder and place the two ends of the main girder on the bearing surfaces at the top of the traveling trolleys 4;

[0054] 3. Control the traveling trolleys 4 to travel along the slide rail 3, and cooperate with the height lifting and lowering of the trolleys and the movement of the conveyor belt 9 to achieve the adjustment of the carried main girder in the XYZ three-axis directions;

[0055] 4. Adjust the positions of the traveling trolleys 4 so that the end of each main girder is directly above the corresponding bearing 2. Lower the height of the bearing surface of the traveling trolleys 4 so that the two ends of each main girder are placed on the bearing 2; continue to lower the height of the bearing plate 15 of the traveling trolleys 4 so that the top of the traveling trolleys 4 is located below the main girder, withdraw the traveling trolleys 4 from below the main girder, and remove the slide rail 3.

[0056] When using the slide rail 3 and the traveling trolleys 4 for the transverse assembly of the main girders, it can also adapt to the assembly of main girders with precast diaphragms. First, place the two ends of the main girder on the traveling trolleys 4 arranged on the corresponding capping beam 1 respectively. When assembling the diaphragm, lift the traveling trolleys 4 to make the main girder above the bearing 2, and cooperate with the transverse movement, height lifting and lowering, and longitudinal fine adjustment of the traveling trolleys 4 to complete the assembly of the diaphragm. Then, lower the height of the lifting plate so that the traveling trolleys 4 drive the main girder to fall until the two ends of the main girder are placed on the bearing 2 on the capping beam 1, improving the construction accuracy and construction efficiency.

[0057] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An assembled displacement device for the upper structure of an assembled bridge, characterized in that, Comprising: A slide rail arranged on the capping beam; A traveling trolley that carries the main beam and moves along the slide rail. The traveling trolley is provided with a lifting mechanism and a conveyor belt. The lifting mechanism connects the bearing plate and the traveling trolley. The conveyor belt is installed on the bearing plate. The top of the conveyor belt is the bearing surface in contact with the main beam. The conveyor belt is matched with a rotary driving member for driving its rotation; the lifting mechanism drives the bearing plate and the conveyor belt to lift vertically. The direction in which the bearing surface of the conveyor belt drives the main beam to move is orthogonal to the moving direction of the traveling trolley.

2. The assembled bridge superstructure assembling and shifting device according to claim 1, wherein The traveling trolley includes an open box body. The circumferential side wall of the bearing plate is slidably matched with the circumferential inner wall of the open box body. The sliding direction of the bearing plate relative to the open box body is the same as the lifting direction of the bearing plate.

3. The assembled bridge superstructure assembly and displacement device according to claim 2, characterized in that The lifting mechanism is located inside the open box body and is between the inner bottom surface of the open box body and the bearing plate.

4. The assembled bridge superstructure assembly and displacement device according to claim 1 or 2 or 3, characterized in that, The lifting mechanism includes a scissor structure and a telescopic oil cylinder. The two ends of the scissor structure are respectively matched with a rotating support and a chute. One end of the scissor structure is connected to the bearing plate, and the other end is connected to the traveling trolley. The telescopic oil cylinder is connected to the scissor structure and drives the scissor structure to open and close.

5. The assembled bridge superstructure assembly and displacement device according to claim 1, characterized in that, The bearing plate is a channel-shaped plate with a groove. The conveyor belt is located in the groove, and both sides of the conveyor belt are respectively installed on the side surfaces of the groove.

6. The prefabricated bridge superstructure assembling and shifting device according to claim 5, characterized in that, The conveyor belt is provided with rollers. Both ends of the rollers are respectively rotatably connected to the channel-shaped plate. The rollers support and tension the conveyor belt.

7. The assembled bridge superstructure assembly and displacement device according to claim 5 or 6, characterized in that, The rotary driving member includes an electric motor. The conveyor belt is matched with a plurality of rollers. One roller located at the end of the conveyor belt serves as a driving roller. The output end of the electric motor is connected to the driving roller. The driving roller is attached to the conveyor belt to drive the conveyor belt to rotate.

8. The assembled bridge superstructure assembly and displacement device according to claim 7, characterized in that, In the direction of driving the main beam to move along the bearing surface, the groove of the channel-shaped plate is a through groove. The top ends of the side plates on both sides of the channel-shaped plate extend to the upper part of the plane where the bearing surface is located, forming a limiting structure on the side of the bearing surface.

9. The assembled bridge superstructure assembly and displacement device according to claim 1, characterized in that, A plurality of traveling trolleys are arranged on the slide rail.

10. The assembled bridge superstructure assembly and displacement device according to claim 9, characterized in that, The slide rail is provided with channels distributed along its axial direction. The lower end of the traveling trolley is located in the channels.

Images