Bridge fabrication machine suitable for construction of steel box-concrete partial cable-stayed bridge

Abstract

The invention discloses a bridge fabrication machine suitable for construction of a steel box-concrete partial cable-stayed bridge, and relates to the field of building bridges, the bridge fabrication machine comprises a bearing beam, C-shaped hooks are fixed to the two ends of the bearing beam, two symmetrical bearing seats are fixed to the middle of the bearing beam, a main truss is installed on the C-shaped hooks, and the main truss is provided with a steel box. A supporting cross beam is fixed between the two main trusses, an auxiliary stable bearing mechanism is arranged on the bearing beam, and an adjusting and centering mechanism is arranged between the bearing beam and the auxiliary stable bearing mechanism. The auxiliary stable bearing mechanism is installed on the bearing beam, the auxiliary stable bearing mechanism is used for conducting auxiliary supporting on the bearing beam in the moving process of the bearing beam and when the bearing beam is kept still, and therefore the moving stability of the bearing beam can be improved in the process that the walking system drives the bearing beam to move; the possibility that the bearing beam deviates when moving is reduced, and meanwhile the bearing beam can be further supported when the bearing beam is not moved.

Description

Technical Field

[0001] The present application relates to the field of bridge construction, and in particular to a bridge-building machine suitable for the construction of steel box-concrete partial cable-stayed bridges. Background Art

[0002] The most common type of bridge-building machine used in the construction of steel-box-concrete partial cable-stayed bridges is the cantilevered cast-in-place bridge-building machine. This machine is a core piece of equipment used in the segmented construction of continuous beams or rigid frame bridges. It uses symmetrical cantilevered concrete to extend the bridge segments one segment at a time. Typically installed on completed piers or the bridge deck, the machine supports the formwork and the loads of the newly cast piers through a load-bearing system. It also features a walking mechanism for movement across piers. Its technical advantages include the lack of support and its adaptability to complex terrain, making it widely used in the construction of long-span bridges.

[0003] Traditional cantilever bridge-building machines are mainly composed of the following components: the load-bearing system, which includes the main load-bearing beam and the load-bearing seats at both ends, which are used to transfer the construction load to the bridge piers; the formwork system, which consists of a bottom formwork, side formwork and a middle formwork, and is fixed to the main truss through formwork beams, support beams and hangers; the moving system, in which the running rails and the running system (such as hydraulic jacks) drive the load-bearing beam to move along the longitudinal direction of the bridge; the supporting structure, which consists of a C-shaped hook connecting the main truss and the load-bearing beam to form a cantilever force system.

[0004] The load-bearing beam moves along the walking rail driven by the walking system. During the movement, the entire load-bearing beam is only supported by the walking system. Under strong winds or unbalanced load conditions, it is prone to lateral deviation or shaking, which may cause the risk of equipment derailment or template dislocation. Summary of the Invention

[0005] The purpose of the present application is to solve the problem raised in the above-mentioned background technology that the entire load-bearing beam is only supported by the walking system during movement, and is prone to lateral deviation or shaking under strong winds or unbalanced load conditions, which may cause the risk of equipment derailment or formwork dislocation. The present application provides a bridge-building machine suitable for the construction of steel box-concrete partial cable-stayed bridges.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A bridge-building machine suitable for the construction of a steel box-concrete partial cable-stayed bridge comprises a load-bearing beam, both ends of the load-bearing beam are fixed with C-shaped hooks, two symmetrical load-bearing seats are fixed to the middle of the load-bearing beam, a main truss is installed on the C-shaped hook, a supporting crossbeam is fixed between the two main trusses, a middle formwork is installed between the supporting crossbeam and the load-bearing beam, two symmetrical formwork crossbeams are arranged between the two main trusses, hangers are installed between one of the formwork crossbeam and the supporting crossbeam, and between the other formwork crossbeam and the two main trusses, a plurality of formwork support beams are installed between the two formwork crossbeams, a bottom formwork is arranged between the two formwork crossbeams, the bottom formwork is fixedly connected to the plurality of formwork support beams, side formworks are fixed to both main trusses, two symmetrical walking rails are provided on the load-bearing beam, a walking system is installed between the two walking rails and the load-bearing beam, an auxiliary stabilizing load-bearing mechanism is provided on the load-bearing beam, and an adjustment and centering mechanism is provided between the load-bearing beam and the auxiliary stabilizing load-bearing mechanism.

[0008] By adopting the above technical solution, an auxiliary stable load-bearing mechanism is installed on the load-bearing beam. When the load-bearing beam moves and remains stationary, the auxiliary stable load-bearing mechanism is used to provide auxiliary support to the load-bearing beam. Therefore, in the process of the walking system driving the load-bearing beam to move, the stability of the movement of the load-bearing beam can be improved, the possibility of the load-bearing beam being offset when moving can be reduced, and the possibility of the load-bearing beam being shaken when moving can be reduced. At the same time, when the load-bearing beam is stationary, the load-bearing beam can be further supported, thereby improving the stability of the entire bridge-building machine in casting the bridge body.

[0009] Furthermore, the auxiliary stable load-bearing mechanism includes an auxiliary beam 1 arranged on the load-bearing beam, one end of the auxiliary beam 1 is fixedly connected to the load-bearing beam, an auxiliary beam 2 is provided at one end of the auxiliary beam 1 away from the load-bearing beam, the auxiliary beam 2 and the auxiliary beam 1 are perpendicular to each other, a connecting moving component is provided between the auxiliary beam 1 and the auxiliary beam 2, and fixed components are provided at both ends of the auxiliary beam 2.

[0010] By adopting the above technical solution, during the movement of the load-bearing beam, the auxiliary beam 1 is allowed to move along with the load-bearing beam, and the auxiliary beam 1 is moved on the auxiliary beam 2 by using the connecting moving component, and the auxiliary beam 2 is fixed to the bridge body by using the fixing component. Thus, in the process of allowing the walking system to drive the load-bearing beam to move, the stability of the movement of the load-bearing beam can be improved, and the possibility of the load-bearing beam being offset during movement can be reduced. At the same time, when the load-bearing beam is stationary, the load-bearing beam can be further supported, thereby improving the stability of the entire bridge-building machine in casting the bridge body.

[0011] Furthermore, the connecting moving component includes a sliding block fixed in the middle of the auxiliary beam 2, a sliding groove corresponding to the sliding block is opened on the auxiliary beam 1, a driving cylinder is arranged in the sliding groove, the driving cylinder is fixedly connected to the auxiliary beam 1, the telescopic end of the driving cylinder is fixedly connected to the sliding block, a moving frame is fixed on the auxiliary beam 2, the moving frame is mounted on the auxiliary beam 1, and is slidably connected to the auxiliary beam 1.

[0012] By adopting the above technical solution, the sliding block on the auxiliary beam 2 is slidably connected to the auxiliary beam 1. During the movement of the load-bearing beam, the auxiliary beam 1 moves on the sliding block, so that the auxiliary beam 1 can follow the movement of the load-bearing beam, limit and support the moving load-bearing beam, and improve the stability of the movement of the load-bearing beam.

[0013] Furthermore, the fixing assembly includes a fixing rod fixed at the two ends of the auxiliary beam, a resistance rod 1 is slidably connected to the fixing rod, a fixing cylinder 1 is provided between the resistance rod 1 and the auxiliary beam 2, the fixing cylinder 1 is fixedly connected to the auxiliary beam 2, the telescopic end of the fixing cylinder is fixedly connected to the resistance rod 1, the fixing rod is slidably connected to the resistance rod 2, a support rod is fixed to the end of the fixing rod away from the auxiliary beam 2, a fixing cylinder 2 is provided between the support rod and the resistance rod 2, the fixing cylinder 2 is fixedly connected to the support rod, and the telescopic end of the fixing cylinder 2 is fixedly connected to the resistance rod 2.

[0014] By adopting the above technical solution, the resistance rod 1 is allowed to resist the bridge body, and the resistance rod 2 is allowed to resist the bridge body, so that the resistance rod 1 and the resistance rod 2 can be conveniently clamped and resisted on the bridge body, and the auxiliary beam 2 can be fixed after the movement, so that the auxiliary beam 2 can support the auxiliary beam 1.

[0015] Furthermore, two symmetrical auxiliary connecting rods are fixed on the auxiliary beam 2, and the two auxiliary connecting rods correspond to the two running rails and are fixedly connected to the running rails.

[0016] By adopting the above technical solution, the anchor point between the walking rail and the bridge body is removed. During the movement of the auxiliary beam 2, the auxiliary beam 2 drives the auxiliary connecting rod, and the auxiliary connecting rod drives the walking rail, thereby facilitating the movement of the walking rail and reducing the trouble of adjusting the walking rail individually.

[0017] Furthermore, the adjustment centering mechanism includes two adjustment blocks symmetrically slidably connected to the interference rod one, an adjustment bevel block is fixed on the adjustment block, a connecting telescopic rod is fixed on the adjustment block, and an adjustment component is arranged between one end of the connecting telescopic rod and the auxiliary beam two.

[0018] By adopting the above technical solution, when the auxiliary beam 2 and the running rail are offset, the inclined surface of the adjusting block is adjusted to contact the bridge body. Under the limit of the adjusting block, the auxiliary beam 2 and the running rail are centered, so that when the auxiliary beam 2 is fixed on the bridge body, the auxiliary beam 2 and the running rail can be adjusted to reduce the offset of the auxiliary beam 2 and the running rail when they are fixed. When the auxiliary beam 1 moves on the auxiliary beam 2, the auxiliary beam 1 restricts the load-bearing beam, further reducing the possibility of the load-bearing beam offset.

[0019] Furthermore, the adjustment assembly includes an adjustment block fixed to one end of the connecting telescopic rod away from the adjustment block, an adjustment rod is slidably connected to the adjustment block, the adjustment rod is fixedly connected to the auxiliary beam 2, and a synchronization member is provided on the auxiliary beam 2.

[0020] By adopting the above technical solution, the synchronous parts are used to drive the adjustment blocks at both ends of the auxiliary beam to move simultaneously, and the adjustment blocks move in the adjustment rods, so that the adjustment blocks on the auxiliary beam can be easily adjusted, and the adjustment blocks drive the adjustment oblique blocks to move.

[0021] Furthermore, the synchronizer includes two support blocks symmetrically fixed on auxiliary beam 2, and a bidirectional threaded rod is rotatably connected between the two support blocks. An adjusting motor is fixed on one of the support blocks, and the output end of the adjusting motor passes through the support block and is fixedly connected to the bidirectional threaded rod. Two symmetrical connecting blocks are threadedly connected to the bidirectional threaded rod, and the connecting blocks are T-shaped. The connecting blocks are fixedly connected to the corresponding adjacent adjustment blocks.

[0022] By adopting the above technical solution, the bidirectional threaded rod is rotated between the two support blocks, and the two connecting blocks are moved simultaneously on the bidirectional threaded rod, so that the adjustment oblique blocks at both ends of the auxiliary beam can be moved and adjusted at the same time.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. The present application, when the load-bearing beam needs to be moved to the next section of the bridge body, first releases the fixing component from the existing bridge body, then uses the connecting and moving component to drive the auxiliary beam two, so that the auxiliary beam two moves on the auxiliary beam one, so that the auxiliary beam two is as close to the load-bearing beam as possible, and then the fixing component is fixedly connected to the bridge body again, and then uses the walking system to drive the load-bearing beam to move, and the load-bearing beam drives the auxiliary beam one during the movement, and the auxiliary beam one supports and limits the moving load-bearing beam. At the same time, the auxiliary beam one moves on the auxiliary beam two under the support of the connecting and moving component, and the auxiliary beam two is still fixedly connected to the bridge body under the fixation of the fixing component. After the load-bearing beam is moved, the auxiliary beam one and the auxiliary beam two duplicate the support of the load-bearing beam, further improving the stability of the load-bearing beam, achieving the purpose of improving the stability of the load-bearing beam movement in the process of allowing the walking system to drive the load-bearing beam to move, reducing the possibility of the load-bearing beam offsetting when moving, and further supporting the load-bearing beam when the load-bearing beam is stationary, thereby improving the stability of the entire bridge-building machine casting bridge body.

[0025] 2. This application is completed by moving the auxiliary beam 2. The walking rail driven by the auxiliary beam 2 is not anchored first. When the fixed cylinder 1 drives the resistance rod 1 to resist the bridge body, the resistance rod 1 drives the adjustment block, and the adjustment block drives the adjustment oblique block under the support of the connecting telescopic rod. When the auxiliary beam 2 and the walking rail are offset, the adjustment oblique block is made to resist the bridge body. Under the limitation of the inclined surface of the adjustment oblique block, the auxiliary beam 2 is centered, and the auxiliary beam 2 drives the walking rail to the center. Finally, the resistance rod 2 is made to resist the bridge body, the auxiliary beam 2 is fixed, and the walking rail is anchored at the same time. When the width of the bridge body does not match the position of the adjustment oblique block, the adjustment component is used to drive the connecting telescopic rod, so that the adjustment blocks at both ends of the auxiliary beam two drive the adjustment oblique blocks to move away from or closer to each other, so that the adjustment oblique blocks can correspond to the width of the bridge body, thereby achieving the purpose of being able to adjust the auxiliary beam two and the walking rail when the auxiliary beam two is fixed on the bridge body, reducing the offset of the auxiliary beam two and the walking rail when they are fixed, and allowing the auxiliary beam one to restrict the load-bearing beam when the auxiliary beam one moves on the auxiliary beam two, further reducing the possibility of offset of the load-bearing beam.

[0026] 3. This application directly starts the adjusting motor when the adjusting block is moved, allowing the adjusting motor to drive the bidirectional threaded rod, allowing the bidirectional threaded rod to rotate between the two support blocks, allowing the two connecting blocks to move simultaneously on the bidirectional threaded rod, the two connecting blocks drive the corresponding adjusting blocks to move on the adjusting rod, the adjusting blocks drive the connecting telescopic rod, and the connecting telescopic rod drives the adjusting blocks, thereby achieving the purpose of facilitating the simultaneous movement of the adjusting oblique blocks at both ends of the auxiliary beam to the adjusting position, and allowing the spacing of the adjusting oblique blocks to match the current bridge body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is a first three-dimensional structural diagram of the bridge-building machine in this application;

[0028] Figure 2 It is a second three-dimensional structural diagram of the bridge-building machine in this application;

[0029] Figure 3 This is a schematic diagram of the first three-dimensional structure of the auxiliary stabilizing load-bearing mechanism in this application;

[0030] Figure 4 This is a schematic diagram of the second three-dimensional structure of the auxiliary stabilizing load-bearing mechanism in this application;

[0031] Figure 5 It is a schematic diagram of the three-dimensional structure of the synchronizer in this application.

[0032] Description of reference numerals:

[0033] 1. Load-bearing beam; 2. Load-bearing seat; 3. C-shaped hook; 4. Main truss; 5. Walking rail; 6. Walking system; 7. Auxiliary stabilizing load-bearing mechanism; 71. Auxiliary beam 1; 72. Auxiliary beam 2; 73. Connecting moving assembly; 731. Sliding groove; 732. Sliding block; 733. Driving cylinder; 734. Moving frame; 74. Fixing assembly; 741. Fixing rod; 742. Interference rod 1; 743. Interference rod 2; 744. Support rod; 745. Fixing cylinder 1; 746. Fixing Cylinder 2; 75. Auxiliary connecting rod; 8. Adjusting centering mechanism; 81. Adjusting block; 82. Adjusting oblique block; 83. Connecting telescopic rod; 84. Adjusting assembly; 841. Adjusting rod; 842. Adjusting block; 843. Synchronizing part; 8431. Connecting block; 8432. Support block; 8433. Bidirectional threaded rod; 8434. Adjusting motor; 9. Middle formwork; 10. Support beam; 11. Hanging rod; 12. Formwork beam; 13. Formwork support beam; 14. Bottom formwork; 15. Side formwork. DETAILED DESCRIPTION

[0034] The following is combined with Figures 1 to 5 This application is described in further detail.

[0035] The embodiment of the present application discloses a bridge-building machine suitable for the construction of a steel box-concrete partial cable-stayed bridge.

[0036] Reference Figure 1 、 Figure 2 and Figure 3A bridge-building machine suitable for the construction of a steel box-concrete partial cable-stayed bridge comprises a load-bearing beam 1, C-shaped hooks 3 are fixed at both ends of the load-bearing beam 1, two symmetrical load-bearing seats 2 are fixed in the middle of the load-bearing beam 1, a main truss 4 is installed on the C-shaped hook 3, a supporting crossbeam 10 is fixed between the two main trusses 4, a middle template 9 is installed between the supporting crossbeam 10 and the load-bearing beam 1, two symmetrical template beams 12 are arranged between the two main trusses 4, one template beam 12 is between the supporting crossbeam 10, and the other template beam 12 is between the two main trusses. Hangers 11 are installed between the frames 4, several formwork support beams 13 are installed between the two formwork beams 12, a bottom formwork 14 is set between the two formwork beams 12, the bottom formwork 14 is fixedly connected to the several formwork support beams 13, side formwork 15 are fixed on the two main trusses 4, two symmetrical walking rails 5 are set on the load-bearing beam 1, a walking system 6 is installed between the two walking rails 5 and the load-bearing beam 1, an auxiliary stabilizing load-bearing mechanism 7 is set on the load-bearing beam 1, and an adjustment and centering mechanism 8 is set between the load-bearing beam 1 and the auxiliary stabilizing load-bearing mechanism 7.

[0037] When using the bridge-building machine, first complete the construction of the pier cap and pier body, cast the No. 0 bridge body on the top of the pier, and after the maintenance of the No. 0 bridge body is completed, place the two load-bearing seats 2 on the No. 0 bridge body, fix the two C-shaped hooks 3 on the load-bearing beam 1, and use external lifting equipment to lift the load-bearing beam 1 and the two C-shaped hooks 3 onto the load-bearing seats 2. The two C-shaped hooks 3 are located on both sides of the No. 0 bridge body. Continue to use external lifting equipment to lift the two main trusses 4 in turn and install them on the C-shaped hooks 3. Fix the supporting beam 10 between the two main trusses 4. After the supporting beam 10 is fixed, use several hangers 11 to connect the two formwork beams 12 to the main trusses 4 and the supporting beam 10 respectively, and set up several formwork support beams 13 between the two formwork beams 12. A bottom formwork 14 is fixed on several formwork support beams 13, an upper middle formwork 9 is fixed between the supporting crossbeam 10 and the load-bearing beam 1, corresponding side formwork 15 is installed on the two main trusses 4, and finally an auxiliary stable load-bearing mechanism 7 is installed on the load-bearing beam 1. The auxiliary stable load-bearing mechanism 7 is fixed on both sides of the No. 0 bridge body, and the auxiliary stable load-bearing mechanism 7 is used to further support and limit the load-bearing beam 1. When the auxiliary stable load-bearing mechanism 7 is fixed on the No. 0 bridge body, the auxiliary stable load-bearing mechanism 7 drives the adjustment centering mechanism 8 to make the adjustment centering mechanism 8 contact the No. 0 bridge body. Under the restriction of the adjustment centering mechanism 8, the auxiliary stable load-bearing mechanism 7 is located in the middle of the No. 0 bridge body. After the low formwork, side formwork 15 and middle formwork 9 are installed and fixed, a section of bridge is carried out. The casting and forming of the body. After this section of the shell is cast and formed, the auxiliary stabilizing load-bearing mechanism 7 is released from the fixation of the No. 0 bridge body, and the auxiliary stabilizing load-bearing mechanism 7 is moved on the No. 0 bridge body, so that the auxiliary stabilizing mechanism is as close to the load-bearing beam 1 as possible, and then the auxiliary stabilizing load-bearing mechanism 7 is fixedly connected to the No. 0 bridge body. At the same time, the auxiliary stabilizing load-bearing mechanism 7 drives the two walking rails 5 to move, and the two walking rails 5 are extended to the formed bridge body. Finally, the walking system 6 on the load-bearing beam 1 pushes the load-bearing beam 1 to move on the walking rail 5. The walking system 6 is generally composed of a hydraulic jack, an anchor block and a moving block. During the walking process, the hydraulic jack is first fixed on the walking rail 5, and then the hydraulic jack is extended. Under the support of the anchor block on the walking rail 5, the hydraulic jack is The movable block moves, and the movable block drives the load-bearing beam 1 to move. After the hydraulic jack reaches the top, the above-mentioned moving operation is repeated until the load-bearing beam 1 moves to a suitable position, and then the construction of the next section of the bridge body is carried out. During the movement of the load-bearing beam 1, the auxiliary stable load-bearing mechanism 7 maintains the support state of the load-bearing beam 1, so that the load-bearing beam 1 is restricted during the movement, and the load-bearing beam 1 remains stable and centered when moving on the walking rail 5. By installing the auxiliary stable load-bearing mechanism 7 on the load-bearing beam 1, the auxiliary stable load-bearing mechanism 7 is used to provide auxiliary support to the load-bearing beam 1 during the movement and when the load-bearing beam 1 remains stationary, thereby improving the stability of the movement of the load-bearing beam 1 in the process of the walking system 6 driving the load-bearing beam 1 to move.It can reduce the possibility of the load-bearing beam 1 deflecting when it moves, and reduce the possibility of the load-bearing beam 1 shaking when it moves. At the same time, it can further support the load-bearing beam 1 when it is not moving, thereby improving the stability of the entire bridge-building machine casting bridge body.

[0038] Reference Figure 2 、 Figure 3 and Figure 4 The auxiliary stabilizing load-bearing mechanism 7 includes an auxiliary beam 1 71 arranged on the load-bearing beam 1, one end of the auxiliary beam 1 71 is fixedly connected to the load-bearing beam 1, an auxiliary beam 2 72 is provided at the end of the auxiliary beam 1 71 away from the load-bearing beam 1, the auxiliary beam 2 72 and the auxiliary beam 1 71 are perpendicular to each other, a connecting moving component 73 is provided between the auxiliary beam 1 71 and the auxiliary beam 2 72, and fixed components 74 are provided at both ends of the auxiliary beam 2 72.

[0039] When the load-bearing beam 1 needs to be moved to the next section of the bridge, first release the fixing component 74 from the existing bridge, then use the connecting moving component 73 to drive the auxiliary beam 2 72, and let the auxiliary beam 2 72 move on the auxiliary beam 1 71, so that the auxiliary beam 2 72 is as close to the load-bearing beam 1 as possible, and then let the fixing component 74 be fixedly connected to the bridge again, and then use the walking system 6 to drive the load-bearing beam 1 to move. The load-bearing beam 1 drives the auxiliary beam 1 71 during the movement, and the auxiliary beam 1 71 supports and limits the moving load-bearing beam 1. At the same time, the auxiliary beam 1 71 moves on the auxiliary beam 2 72 under the support of the connecting moving component 73, and the auxiliary beam 2 72 is still fixedly connected to the bridge body under the fixation of the fixing component 74. Then, after the load-bearing beam 1 is moved, the auxiliary beam 1 71 and the auxiliary beam 2 72 duplicate the support for the load-bearing beam 1 to further improve the stability of the load-bearing beam 1. During the movement of the load-bearing beam 1, the auxiliary beam 1 71 follows the load-bearing beam 1. The auxiliary beam 1 71 moves on the auxiliary beam 2 72 using the connecting moving component 73, and the auxiliary beam 2 72 is fixed to the bridge body using the fixing component 74. In this way, in the process of the walking system 6 driving the load-bearing beam 1 to move, the stability of the movement of the load-bearing beam 1 can be improved, and the possibility of the load-bearing beam 1 being offset during movement can be reduced. At the same time, when the load-bearing beam 1 is not moving, the load-bearing beam 1 can be further supported to improve the stability of the bridge body cast by the entire bridge-building machine.

[0040] Reference Figure 2 、 Figure 3 and Figure 4The connecting moving component 73 includes a sliding block 732 fixed in the middle of the auxiliary beam 2 72, a sliding groove 731 corresponding to the sliding block 732 is opened on the auxiliary beam 1 71, and a driving cylinder 733 is arranged in the sliding groove 731. The driving cylinder 733 is fixedly connected to the auxiliary beam 1 71, and the telescopic end of the driving cylinder 733 is fixedly connected to the sliding block 732. A moving frame 734 is fixed on the auxiliary beam 2 72, and the moving frame 734 is sleeved on the auxiliary beam 1 71 and is slidably connected to the auxiliary beam 1 71.

[0041] After the auxiliary beam 72 has been moved, the fixing assembly 74 is used to fix the auxiliary beam 2 72. When the traveling system 6 drives the load-bearing beam 1 to move on the traveling rail 5, the load-bearing beam 1 drives the auxiliary beam 1 71, and the auxiliary beam 1 71 moves on the sliding block 732 on the auxiliary beam 2 72. At the same time, the telescopic end of the driving cylinder 733 is contracted accordingly. By sliding the sliding block 732 on the auxiliary beam 2 72 and the auxiliary beam 1 71 in sliding connection, the auxiliary beam 1 71 moves on the sliding block 732 during the movement of the load-bearing beam 1. As a result, the auxiliary beam 1 71 can follow the movement of the load-bearing beam 1, limit and support the moving load-bearing beam 1, and improve the stability of the movement of the load-bearing beam 1.

[0042] Reference Figure 3 and Figure 4 The fixing assembly 74 includes a fixing rod 741 fixed to the end of the auxiliary beam 2 72, and a resistance rod 1 742 is slidably connected to the fixing rod 741, and a fixing cylinder 1 745 is provided between the resistance rod 1 742 and the auxiliary beam 2 72, and the fixing cylinder 1 745 is fixedly connected to the auxiliary beam 2 72, and the telescopic end of the fixing cylinder is fixedly connected to the resistance rod 1 742, and the fixing rod 741 is slidably connected to the resistance rod 2 743, and a support rod 744 is fixed to the end of the fixing rod 741 away from the auxiliary beam 2 72, and a fixing cylinder 2 746 is provided between the support rod 744 and the resistance rod 2 743, and the fixing cylinder 2 746 is fixedly connected to the support rod 744, and the telescopic end of the fixing cylinder 2 746 is fixedly connected to the resistance rod 2 743.

[0043] When the auxiliary beam 2 72 moves, the fixed cylinder 1 745 drives the resistance rod 1 742, and the fixed cylinder 2 746 drives the resistance rod 2 743, so that the resistance rod 1 742 and the resistance rod 2 743 are away from the bridge body. After the auxiliary beam 2 72 completes its movement, the fixed cylinder 1 745 drives the resistance rod 1 742 so that the resistance rod 1 742 contacts the bridge body, and then the fixed cylinder 2 746 drives the resistance rod 2 743 so that the resistance rod 2 743 is away from the bridge body. 3 contacts the bridge body, allowing the contact rod 1 742 and the contact rod 2 743 to be clamped on the bridge body, and by using the auxiliary beam 2 72 to support the fixed rod 741, the contact rod 1 742 and the contact rod 2 743 are moved on the fixed rod 741, so that the contact rod 1 742 and the contact rod 2 743 can be conveniently clamped and contacted on the bridge body, and the auxiliary beam 2 72 after movement can be conveniently fixed, so that the auxiliary beam 2 72 supports the auxiliary beam 1 71.

[0044] Reference Figure 3 and Figure 4 Two symmetrical auxiliary connecting rods 75 are fixed on the auxiliary beam 2 72. The two auxiliary connecting rods 75 correspond to the two running rails 5 and are fixedly connected to the running rails 5. When the auxiliary beam 2 72 moves toward the load-bearing beam 1, the anchor point between the running rail 5 and the bridge body is released. During the movement of the auxiliary beam 2 72, the auxiliary beam 2 72 drives the auxiliary connecting rods 75, and the auxiliary connecting rods 75 drive the running rails 5, so that the running rails 5 move to the newly cast bridge body, and then the running rails 5 are fixedly anchored to the new bridge body. During the movement of the load-bearing beam 1, the load-bearing beam 1 can continue to move along the running rails 5. By using the auxiliary connecting rods 75 to drive the running rails 5 to move during the movement of the auxiliary beam 2 72 toward the new bridge body, the running rails 5 can be easily moved, reducing the trouble of adjusting the running rails 5 individually.

[0045] Reference Figure 2 、 Figure 3 and Figure 4 The centering adjustment mechanism 8 includes two adjustment blocks 81 symmetrically slidably connected to the interference rod 1 742, an adjustment bevel block 82 is fixed on the adjustment block 81, a connecting telescopic rod 83 is fixed on the adjustment block 81, and an adjustment component 84 is arranged between one end of the connecting telescopic rod 83 and the auxiliary beam 2 72.

[0046] After the auxiliary beam 2 72 is moved, the walking rail 5 driven by the auxiliary beam 2 72 should not be anchored first. When the fixed cylinder 1 745 drives the resistance rod 1 742 to resist the bridge body, the resistance rod 1 742 drives the adjustment block 81, and the adjustment block 81 drives the adjustment bevel block 82 under the support of the connecting telescopic rod 83. When the auxiliary beam 2 72 and the walking rail 5 are offset, the adjustment bevel block 82 is made to resist the bridge body. Under the restriction of the inclined surface of the adjustment bevel block 82, the auxiliary beam 2 72 is centered, and the auxiliary beam 2 72 drives the walking rail 5 to be centered. Finally, the resistance rod 2 743 is made to resist the bridge body, the auxiliary beam 2 72 is fixed, and the walking rail 5 is anchored at the same time. When the width of the bridge body does not match the position of the adjustment bevel block 82, the adjustment component 84 is used to drive the connecting telescopic rod 83 to allow the adjustment blocks 81 at both ends of the auxiliary beam 2 72 to Drive the adjustment bevel blocks 82 away from or closer to each other, so that the adjustment bevel blocks 82 can correspond to the width of the bridge body. When the contact rod 1 742 contacts the bridge body, the contact rod 1 742 drives the adjustment block 81, and the adjustment block 81 drives the adjustment bevel block 82 to contact the bridge body. When the auxiliary beam 2 72 and the walking rail 5 are offset, the inclined surface of the adjustment bevel block 82 contacts the bridge body. Under the limit of the adjustment bevel block 82, the auxiliary beam 2 72 and the walking rail 5 are centered, so that when the auxiliary beam 2 72 is fixed on the bridge body, the auxiliary beam 2 72 and the walking rail 5 can be adjusted to reduce the offset of the auxiliary beam 2 72 and the walking rail 5 when fixed. When the auxiliary beam 1 71 moves on the auxiliary beam 2 72, the auxiliary beam 1 71 restricts the load-bearing beam 1, further reducing the possibility of the load-bearing beam 1 offsetting.

[0047] Reference Figure 3 、 Figure 4 and Figure 5 The adjustment assembly 84 includes an adjustment block 842 fixed to the end of the connecting telescopic rod 83 away from the adjustment block 81. The adjustment rod 841 is slidably connected to the adjustment block 842. The adjustment rod 841 is fixedly connected to the auxiliary beam 72, and a synchronizer 843 is provided on the auxiliary beam 72. When adjusting the adjustment block 81, the synchronizer 843 is used to drive the adjustment blocks 842 at both ends of the auxiliary beam 72 to move simultaneously. The adjustment blocks 842 move within the adjustment rod 841. The adjustment blocks 842 drive the connecting telescopic rod 83, and the connecting telescopic rod 83 drives the adjustment block 81. By using the adjustment block 842 to support the connecting telescopic rod 83, and the connecting telescopic rod 83 to support the adjustment block 81, the adjustment block 81 on the auxiliary beam 72 can be easily adjusted, and the adjustment block 81 drives the adjustment oblique block 82 to move.

[0048] Reference Figure 4 and Figure 5The synchronous part 843 includes two support blocks 8432 symmetrically fixed on the auxiliary beam 72, and a bidirectional threaded rod 8433 is rotatably connected between the two support blocks 8432. An adjusting motor 8434 is fixed on one of the support blocks 8432. The output end of the adjusting motor 8434 passes through the support block 8432 and is fixedly connected to the bidirectional threaded rod 8433. Two symmetrical connecting blocks 8431 are threadedly connected to the bidirectional threaded rod 8433. The connecting block 8431 is T-shaped and is fixedly connected to the corresponding adjacent adjusting block 842. When the adjustment block 81 is moved, the adjustment motor 8434 is directly started, and the adjustment motor 8434 drives the bidirectional threaded rod 8433, and the bidirectional threaded rod 8433 rotates between the two support blocks 8432, and the two connecting blocks 8431 move simultaneously on the bidirectional threaded rod 8433, and the two connecting blocks 8431 drive the corresponding adjustment blocks 842 to move on the adjustment rod 841. By allowing the bidirectional threaded rod 8433 to drive the two connecting blocks 8431 to move simultaneously, it is convenient to allow the adjustment bevel blocks 82 at both ends of the auxiliary beam 2 72 to move and adjust their positions simultaneously.

[0049] Working principle: When using the bridge-building machine, first complete the construction of the pier cap and pier body, cast the No. 0 bridge body on the top of the pier, and after the maintenance of the No. 0 bridge body is completed, place the two load-bearing seats 2 on the No. 0 bridge body, fix the two C-shaped hooks 3 on the load-bearing beam 1, and use external lifting equipment to lift the load-bearing beam 1 and the two C-shaped hooks 3 onto the load-bearing seats 2. The two C-shaped hooks 3 are located on both sides of the No. 0 bridge body. Continue to use external lifting equipment to lift the two main trusses 4 in turn and install them on the C-shaped hooks 3. On the top, fix the upper supporting beam 10 between the two main trusses 4. After the supporting beam 10 is fixed, use several hangers 11 to connect the two formwork beams 12 to the main trusses 4 and the supporting beam 10 respectively, set up several formwork support beams 13 between the two formwork beams 12, fix the upper bottom formwork 14 on the several formwork support beams 13, install and fix the upper middle formwork 9 between the supporting beam 10 and the load-bearing beam 1, and install the corresponding side formwork 15 on the two main trusses 4.

[0050] Then, the auxiliary beam 1 71 and the auxiliary beam 2 72 are hoisted onto the bridge body 0 for installation. After the auxiliary beam 1 71 and the auxiliary beam 2 72 are installed, the fixed cylinder 1 745 drives the resistance rod 1 742 so that the resistance rod 1 742 contacts the bridge body. Then, the fixed cylinder 2 746 drives the resistance rod 2 743 so that the resistance rod 2 743 contacts the bridge body. The resistance rod 1 742 and the resistance rod 2 743 are clamped on the bridge body. The auxiliary beam 1 71 and the auxiliary beam 2 72 provide auxiliary support for the load-bearing beam 1. When a section of the bridge body is cast and the load-bearing beam 1 needs to be moved, the fixed cylinder 1 is first driven by the fixed cylinder 2 Cylinder one 745 drives the resistance rod one 742, and the fixed cylinder two 746 drives the resistance rod two 743, so that the resistance rod one 742 and the resistance rod two 743 move away from the bridge body, and the driving cylinder 733 is extended in the sliding groove 731, so that the telescopic end of the driving cylinder 733 pushes the sliding block 732, and the sliding block 732 moves in the sliding groove 731 on the auxiliary beam one 71. The sliding block 732 drives the auxiliary beam two 72 to approach the load-bearing beam 1. During the movement, the auxiliary beam two 72 drives the auxiliary connecting rod 75, and the auxiliary connecting rod 75 drives the walking rail 5 to move together, so that the walking rail 5 moves to the new bridge body.

[0051] Then, the fixed cylinder 1 745 drives the contact rod 1 742. When the contact rod 1 742 contacts the bridge body, the contact rod 1 742 drives the adjustment block 81. The adjustment block 81 drives the adjustment bevel block 82 under the support of the telescopic rod 83. When the auxiliary beam 2 72 and the walking rail 5 deviate, the adjustment bevel block 82 contacts the bridge body. Under the restriction of the inclined surface of the adjustment bevel block 82, the auxiliary beam 2 72 is centered. At the same time, the auxiliary beam 2 72 drives the walking rail 5 to be centered. Finally, the contact rod 2 743 contacts the bridge body. Fix the auxiliary beam 2 72 and anchor the walking rail 5 at the same time, then use the walking system 6 to drive the load-bearing beam 1 to move, and the load-bearing beam 1 drives the auxiliary beam 1 71. The auxiliary beam 1 71 moves on the sliding block 732 on the auxiliary beam 2 72, and at the same time drives the telescopic end of the cylinder 733 to perform corresponding contraction, so that the auxiliary beam 1 71 can provide auxiliary support for the moving load-bearing beam 1. After the load-bearing beam 1 drives the corresponding structure to move to the new position, the new bridge body is cast. After the casting is completed, repeat the above operation to move the load-bearing beam 1.

[0052] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0053] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A bridge-building machine suitable for the construction of a steel box-concrete partial cable-stayed bridge, comprising a load-bearing beam (1), characterized in that: Both ends of the load-bearing beam (1) are fixed with C-shaped hooks (3), the middle part of the load-bearing beam (1) is fixed with two symmetrical load-bearing seats (2), the main trusses (4) are installed on the C-shaped hooks (3), a supporting beam (10) is fixed between the two main trusses (4), a middle template (9) is installed between the supporting beam (10) and the load-bearing beam (1), two symmetrical template beams (12) are arranged between the two main trusses (4), a suspender (11) is installed between one template beam (12) and the supporting beam (10), and between the other template beam (12) and the two main trusses (4). Several formwork support beams (13) are installed between the formwork crossbeams (12), a bottom formwork (14) is provided between two of the formwork crossbeams (12), the bottom formwork (14) is fixedly connected to the several formwork support beams (13), side forms (15) are fixed on both main trusses (4), two symmetrical walking rails (5) are provided on the load-bearing beam (1), a walking system (6) is installed between the two walking rails (5) and the load-bearing beam (1), an auxiliary stabilizing load-bearing mechanism (7) is provided on the load-bearing beam (1), and an adjusting centering mechanism (8) is provided between the load-bearing beam (1) and the auxiliary stabilizing load-bearing mechanism (7).

2. The bridge-building machine suitable for the construction of a steel box-concrete partial cable-stayed bridge according to claim 1, characterized in that: The auxiliary stabilizing load-bearing mechanism (7) comprises an auxiliary beam 1 (71) arranged on the load-bearing beam (1), one end of the auxiliary beam 1 (71) being fixedly connected to the load-bearing beam (1), an auxiliary beam 2 (72) being arranged at one end of the auxiliary beam 1 (71) away from the load-bearing beam (1), the auxiliary beam 2 (72) and the auxiliary beam 1 (71) being perpendicular to each other, a connecting moving component (73) being arranged between the auxiliary beam 1 (71) and the auxiliary beam 2 (72), and fixed components (74) being arranged at both ends of the auxiliary beam 2 (72).

3. The bridge-building machine suitable for the construction of a steel box-concrete partial cable-stayed bridge according to claim 2, characterized in that: The connecting moving assembly (73) includes a sliding block (732) fixed to the middle of the auxiliary beam (72); a sliding groove (731) corresponding to the sliding block (732) is provided on the auxiliary beam (71); a driving cylinder (733) is provided in the sliding groove (731); the driving cylinder (733) is fixedly connected to the auxiliary beam (71); the telescopic end of the driving cylinder (733) is fixedly connected to the sliding block (732); a moving frame (734) is fixed on the auxiliary beam (72); the moving frame (734) is sleeved on the auxiliary beam (71) and is slidably connected to the auxiliary beam (71).

4. The bridge-building machine suitable for the construction of a steel box-concrete partial cable-stayed bridge according to claim 2, characterized in that: The fixing assembly (74) includes a fixing rod (741) fixed to the end of the auxiliary beam 2 (72), a first interfering rod (742) is slidably connected to the fixing rod (741), a first fixing cylinder (745) is provided between the first interfering rod (742) and the auxiliary beam 2 (72), the first fixing cylinder (745) is fixedly connected to the auxiliary beam 2 (72), the telescopic end of the fixing cylinder is fixedly connected to the first interfering rod (742), the second interfering rod (743) is slidably connected to the fixing rod (741), a support rod (744) is fixed to the end of the fixing rod (741) away from the auxiliary beam 2 (72), a second fixing cylinder (746) is provided between the support rod (744) and the second interfering rod (743), the second fixing cylinder (746) is fixedly connected to the support rod (744), and the telescopic end of the second fixing cylinder (746) is fixedly connected to the second interfering rod (743).

5. The bridge-building machine suitable for the construction of a steel box-concrete partial cable-stayed bridge according to claim 2, characterized in that: Two symmetrical auxiliary connecting rods (75) are fixed on the auxiliary beam 2 (72), and the two auxiliary connecting rods (75) correspond to the two walking rails (5) and are fixedly connected to the walking rails (5).

6. The bridge-building machine suitable for the construction of a steel box-concrete partial cable-stayed bridge according to claim 4, characterized in that: The centering adjustment mechanism (8) comprises two adjustment blocks (81) symmetrically slidably connected to the first contact rod (742), an adjustment bevel block (82) is fixed to the adjustment block (81), a connecting telescopic rod (83) is fixed to the adjustment block (81), and an adjustment component (84) is provided between one end of the connecting telescopic rod (83) and the second auxiliary beam (72).

7. The bridge-building machine suitable for the construction of a steel box-concrete partial cable-stayed bridge according to claim 6, characterized in that: The adjustment assembly (84) includes an adjustment block (842) fixed to one end of the connecting telescopic rod (83) away from the adjustment block (81); an adjustment rod (841) is slidably connected to the adjustment block (842); the adjustment rod (841) is fixedly connected to the auxiliary beam (72); and a synchronization member (843) is provided on the auxiliary beam (72).

8. The bridge-building machine suitable for the construction of a steel box-concrete partial cable-stayed bridge according to claim 7, characterized in that: The synchronizer (843) comprises two support blocks (8432) symmetrically fixed on the auxiliary beam 2 (72), a bidirectional threaded rod (8433) being rotatably connected between the two support blocks (8432), an adjustment motor (8434) being fixed on one of the support blocks (8432), an output end of the adjustment motor (8434) passing through the support block (8432) and being fixedly connected to the bidirectional threaded rod (8433), two symmetrical connecting blocks (8431) being threadedly connected to the bidirectional threaded rod (8433), the connecting blocks (8431) being T-shaped, and the connecting blocks (8431) being fixedly connected to the corresponding adjacent adjustment blocks (842).

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