Bridge erecting machine with good stability

Abstract

The utility model discloses a bridge -erecting machine with good stability, including support frame, the support frame is provided with two groups, and symmetrically sets up, both ends of support frame are fixedly equipped with support leg, the upper end surface of support frame is fixedly equipped with slide rail, the outer end of slide rail all movably is equipped with the adjusting frame, the upper end surface fixed establishment of two adjusting frames is hung the roof beam, the inside of adjusting frame all rotates and is equipped with the gyro wheel, the gyro wheel all cooperate with slide rail and install, the inner wall of adjusting frame and located both sides all are equipped with the clamping strip, the outer wall of support frame all correspondingly is equipped with the clamping groove, the clamping strip all slide with the clamping groove and install, one side of adjusting frame is equipped with first motor, so that the user can make gear rotate through the control first motor, gear will drive adjusting frame and roof beam to move through the effect of rack at this moment, to realize the effect of the translation to the beam piece.

Description

Technical Field

[0001] This utility model relates to the field of bridge erecting machine technology, and more specifically, it relates to a bridge erecting machine with good stability. Background Technology

[0002] A bridge erecting machine generally refers to a device that places prefabricated bridge beams onto prefabricated bridge piers. Most existing bridge erecting machines fall under the category of cranes because their main function is to lift the beams, transport them to the designated location, and then lower them. Therefore, their operating principle is roughly the same as that of a crane. As the scope of bridge construction in China expands, the frequency and range of use of bridge erecting machines are increasing year by year. Bridge erecting machines are generally assembled from load-bearing beams, transmission components, and clamping components.

[0003] However, some existing bridge erecting machines use suspension ropes or wire ropes to fix the bridge beams during use. However, this type of bridge erecting mechanism is prone to causing the bridge beams to sway due to airflow and other reasons, which may lead to the risk of collision.

[0004] Furthermore, most existing bridge erecting machines only have the function of translating the bridge beams and cannot fine-tune the installation angle of the beams. As a result, if the beams are misaligned during installation, manual correction is required, which is quite laborious. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a bridge erecting machine with good stability, thereby solving the technical problem mentioned in the background art that some existing bridge erecting machines use suspension ropes or wire ropes to fix the bridge beams, but this type of bridge erecting mechanism is prone to causing the bridge beams to sway due to airflow and other reasons.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a bridge erecting machine with good stability, comprising a support frame, wherein two sets of support frames are arranged symmetrically, support legs are fixedly provided at both ends of the support frame, a slide rail is fixedly provided on the upper surface of the support frame, an adjusting frame is movably provided on the outer end of the slide rail, a lifting beam is fixedly provided on the upper surface of the two adjusting frames, a roller is rotatably provided inside the adjusting frame, the roller is installed in cooperation with the slide rail, a locking strip is provided on the inner wall of the adjusting frame on both sides, a corresponding locking groove is provided on the outer wall of the support frame, the locking strip is slidably installed with the locking groove, a first motor is provided on one side of the adjusting frame, a gear is provided at the output end of the first motor, a rack is provided on the outer wall of the support frame, the gear is meshed with the rack, a connecting shaft is rotatably provided at the middle position of the lifting beam, and a lifting mechanism is provided at the bottom of the connecting shaft.

[0009] The present invention is further configured such that the lifting mechanism includes a top plate, the top plate is fixedly connected to the lower end of the connecting shaft, a cylinder is provided on the lower end face of the top plate, a crossbeam is provided on the output end of the cylinder, a connecting rod is fixedly provided on the upper end face of the top plate and located at the periphery, a plurality of connecting rods are provided and arranged in a circumferential shape, a limiting block is fixedly provided on the upper end of each connecting rod, an annular groove is opened on the lower end face of the lifting beam, the connecting rods are all located inside the annular groove, a limiting groove is opened on the inner wall of the annular groove, the limiting blocks are all located inside the limiting groove and are movably installed with the limiting groove to facilitate guiding the top plate.

[0010] The present invention is further configured such that a second motor is fixedly provided on the upper end face of the lifting beam, and the output end of the second motor is fixedly connected to the connecting shaft to facilitate the rotation of the connecting shaft.

[0011] The present invention is further configured such that a T-shaped groove is provided on the lower end face of the crossbeam on both sides, a T-shaped block is slidably provided inside the T-shaped groove, a lifting device is provided at the lower end of the T-shaped block, and a lead screw is rotatably provided inside the T-shaped groove. The lead screw is threadedly connected to the T-shaped block, which facilitates the adjustment of the distance between the lifting devices.

[0012] The present invention is further configured such that the lower end face of the crossbeam and both sides are provided with avoidance grooves, and the interior of each avoidance groove is provided with a third motor. The output end of each third motor is fixedly connected to the lead screw to facilitate the transmission of the lead screw.

[0013] The present invention is further provided that trusses are fixedly provided on the inner wall of the support frame, and multiple trusses are provided and evenly distributed to facilitate the support frame and reduce the resistance of the device.

[0014] The present invention is further provided with reinforcing ribs on the upper end surface and on both sides of the crossbeam, and the other end of the reinforcing ribs is fixedly connected to the output end of the cylinder, which facilitates increasing the overall strength of the crossbeam.

[0015] The present invention is further configured such that each of the support legs is provided with an external connection hole, which facilitates the connection of the device with external moving components.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a bridge erecting machine with good stability, which has the following characteristics:

[0018] Beneficial effects:

[0019] 1. By setting up slide rails, adjusting frames, rollers, and locking bars, the user can control the first motor to rotate the gears. The gears, through the action of the rack, drive the adjusting frame and the suspension beam to move, thereby achieving the effect of translating the beam at its lower end. During the movement of the adjusting frame, the locking bars are located inside the locking groove to limit the adjustment frame, making its movement more stable. This mechanism is more practical than bridge erecting machines using wire ropes or suspension ropes, and the beam moves more smoothly, facilitating subsequent installation.

[0020] 2. By setting up a connecting shaft, top plate, connecting rod, and limit block, the user can control the second motor to make the connecting shaft drive the top plate and the crossbeam at its lower end to rotate, so as to fine-tune the angle of the beam, which facilitates subsequent installation. Furthermore, by setting up the connecting rod and limit block, the top plate can rotate more smoothly, increasing the stability of the device.

[0021] 3. By setting up a T-slot, a T-block, and a third motor, the user can control the third motor to drive the lead screw to rotate. At this time, the lead screw will drive the T-block to slide inside the T-slot, so as to adjust the distance between the two lifting devices, thereby facilitating the lifting and installation of beams of different sizes and making it convenient to use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a stable bridge erecting machine in its unused state.

[0023] Figure 2 This is a schematic diagram showing the positions of the cylinders and connecting rods on the top plate.

[0024] Figure 3 This is a schematic diagram showing the installation positions of the cylinder upper crossbeam, T-block, lifting device, lead screw, and third motor;

[0025] Figure 4This is a sectional view showing the installation of the top plate, connecting rod, and limiting block on the lifting beam.

[0026] Figure 5 This is a schematic diagram showing the positions of the lifting beam, rollers, and clamping strips on the adjustment frame.

[0027] In the diagram: 1. Support frame; 2. Support leg; 3. Slide rail; 4. Adjustment frame; 5. Lifting beam; 6. Roller; 7. Locking bar; 8. Locking groove; 9. First motor; 10. Gear; 11. Rack; 12. Connecting shaft; 13. Top plate; 14. Cylinder; 15. Crossbeam; 16. Connecting rod; 17. Limiting block; 18. Annular groove; 19. Limiting groove; 20. Second motor; 21. T-slot; 22. T-block; 23. Lifting device; 24. Lead screw; 25. Third motor; 26. Truss; 27. Reinforcing rib; 28. External connection hole. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figure 1-5 A bridge erecting machine with good stability includes a support frame 1, which is provided in two sets and is symmetrically arranged. Support legs 2 are fixed at both ends of the support frame 1. Slide rails 3 are fixed on the upper surface of the support frame 1. Adjusting frames 4 are movably provided at the outer ends of the slide rails 3. Hanging beams 5 are fixed on the upper surface of the two adjusting frames 4. Rollers 6 are rotatably provided inside the adjusting frames 4 and are installed in cooperation with the slide rails 3. Locking strips 7 are provided on the inner wall of the adjusting frames 4 and on both sides. Locking grooves 8 are correspondingly opened on the outer wall of the support frame 1. Locking strips 7 are slidably installed with locking grooves 8. A first motor 9 is provided on one side of the adjusting frame 4. Gear 10 is provided at the output end of the first motor 9. Rack 11 is provided on the outer wall of the support frame 1. Gear 10 and rack 11 are meshed and installed. A connecting shaft 12 is rotatably provided in the middle position of the hanging beam 5. A lifting mechanism is provided at the bottom of the connecting shaft 12. Trusses 26 are fixed on the inner wall of the support frame 1. Multiple trusses 26 are provided and are evenly distributed.

[0032] In this embodiment, the lifting mechanism includes a top plate 13, which is fixedly connected to the lower end of the connecting shaft 12. A cylinder 14 is provided on the lower end face of the top plate 13, and a crossbeam 15 is provided at the output end of the cylinder 14. A connecting rod 16 is fixedly provided on the upper end face of the top plate 13 at the periphery. Multiple connecting rods 16 are arranged in a circular pattern. A limiting block 17 is fixedly provided at the upper end of each connecting rod 16. An annular groove 18 is opened on the lower end face of the lifting beam 5. The connecting rods 16 are all located inside the annular groove 18. A limiting groove 19 is opened on the inner wall of the annular groove 18. The limiting blocks 17 are all located inside the limiting groove 19 and are movably installed with the limiting groove 19. A second motor 20 is fixedly provided on the upper end face of the lifting beam 5. The output end of the second motor 20 is fixedly connected to the connecting shaft 12. A reinforcing rib 27 is provided on both sides of the upper end face of the crossbeam 15. The other end of the reinforcing rib 27 is fixedly connected to the output end of the cylinder 14.

[0033] More specifically, the user can control the first motor 9 to rotate the gear 10. At this time, the gear 10 will drive the adjusting frame 4 and the hanging beam 5 to move through the rack 11, so as to achieve the effect of translating the beam at its lower end. When the adjusting frame 4 moves, the locking strip 7 will be located inside the locking groove 8 to limit the adjusting frame 4, so as to make it more stable when moving. During installation, the user can also control the second motor 20 to drive the connecting shaft 12 to rotate the top plate 13 and the crossbeam 15 at its lower end, so as to fine adjust the angle of the beam, which is convenient for subsequent installation. Furthermore, by setting the connecting rod 16 and the limiting block 17, the top plate 13 can be rotated more smoothly, increasing the stability of the device.

[0034] Please see Figure 2 and Figure 3 As an implementation method for adjusting the distance between the lifting devices 23: T-slots 21 are provided on both sides of the lower end face of the crossbeam 15, T-blocks 22 are slidably provided inside the T-slots 21, lifting devices 23 are provided at the lower end of the T-blocks 22, and lead screws 24 are rotatably provided inside the T-slots 21. The lead screws 24 are threadedly connected to the T-blocks 22. Avoidance grooves are provided on both sides of the lower end face of the crossbeam 15, and third motors 25 are provided inside the avoidance grooves. The output end of the third motors 25 is fixedly connected to the lead screws 24.

[0035] Specifically, the user can control the third motor 25 to drive the lead screw 24 to rotate. At this time, the lead screw 24 will drive the T-block 22 to slide inside the T-slot 21 to adjust the distance between the two lifting devices 23, thereby facilitating the lifting and installation of beams of different sizes and increasing flexibility.

[0036] Please refer to Figure 1As a further embodiment for connecting the mechanism to external moving components: each of the support legs 2 is provided with an external connection hole 28.

[0037] Specifically, users can connect the device to external moving components through the external port 28.

[0038] In summary, during use, the user can control the first motor 9 to rotate the gear 10. The gear 10, through the rack 11, will move the adjusting frame 4 and the lifting beam 5, achieving a translational effect on the lower beam. During the movement of the adjusting frame 4, the locking strip 7 will be positioned inside the locking groove 8 to limit its movement, ensuring smoother movement. During installation, the second motor 20 can be controlled to rotate the connecting shaft 12, causing the top plate 13 and its lower crossbeam 15 to rotate, allowing for fine-tuning of the beam angle for easier installation. The connecting rod 16 and limiting block 17 further stabilize the top plate 13 during rotation, increasing the device's stability. Before lifting, the user can control the third motor 25 to rotate the lead screw 24. The lead screw 24 will then cause the T-block 22 to slide within the T-slot 21, adjusting the distance between the two lifting devices 23, thus facilitating the lifting and installation of beams of different sizes.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bridge erecting machine with good stability, comprising a support frame (1), characterized in that: The support frame (1) is provided in two sets and is arranged symmetrically. Support legs (2) are fixed at both ends of the support frame (1). Slide rails (3) are fixed on the upper surface of the support frame (1). Adjusting frames (4) are movably provided at the outer ends of the slide rails (3). Hanging beams (5) are fixed on the upper surfaces of the two adjusting frames (4). Rollers (6) are rotatably provided inside the adjusting frames (4). The rollers (6) are installed in cooperation with the slide rails (3). Locking strips are provided on the inner wall of the adjusting frames (4) on both sides. (7) The outer wall of the support frame (1) is provided with corresponding slots (8), and the slot strips (7) are slidably installed with the slots (8). One side of the adjustment frame (4) is provided with a first motor (9), and the output end of the first motor (9) is provided with a gear (10). The outer wall of the support frame (1) is provided with a rack (11), and the gear (10) is meshed with the rack (11). The middle position of the lifting beam (5) is provided with a connecting shaft (12), and the bottom of the connecting shaft (12) is provided with a lifting mechanism.

2. The bridge erecting machine with good stability according to claim 1, characterized in that: The lifting mechanism includes a top plate (13), which is fixedly connected to the lower end of the connecting shaft (12). A cylinder (14) is provided on the lower end face of the top plate (13). A crossbeam (15) is provided at the output end of the cylinder (14). A connecting rod (16) is fixedly provided on the upper end face of the top plate (13) and at the periphery. Multiple connecting rods (16) are provided and arranged in a circular shape. A limiting block (17) is fixedly provided on the upper end of each connecting rod (16). An annular groove (18) is opened on the lower end face of the lifting beam (5). The connecting rods (16) are all located inside the annular groove (18). A limiting groove (19) is opened on the inner wall of the annular groove (18). The limiting blocks (17) are all located inside the limiting groove (19) and are movably installed with the limiting groove (19).

3. The bridge erecting machine with good stability according to claim 2, characterized in that: The upper end face of the lifting beam (5) is fixedly provided with a second motor (20), and the output end of the second motor (20) is fixedly connected to the connecting shaft (12).

4. The bridge erecting machine with good stability according to claim 2, characterized in that: The lower end face of the crossbeam (15) and both sides are provided with T-slots (21), and T-blocks (22) are slidably provided inside the T-slots (21). The lower end of each T-block (22) is provided with a lifting device (23). A lead screw (24) is rotatably provided inside the T-slots (21), and the lead screw (24) is threadedly connected to the T-block (22).

5. A bridge erecting machine with good stability according to claim 4, characterized in that: The lower end face of the crossbeam (15) and both sides are provided with avoidance grooves. The interior of each avoidance groove is provided with a third motor (25). The output end of each third motor (25) is fixedly connected to the lead screw (24).

6. The bridge erecting machine with good stability according to claim 1, characterized in that: Each of the support frames (1) has a fixed truss (26) on its inner wall, and there are multiple trusses (26) evenly distributed.

7. A bridge erecting machine with good stability according to claim 2, characterized in that: The upper end face of the crossbeam (15) and both sides are provided with reinforcing ribs (27), and the other end of the reinforcing ribs (27) is fixedly connected to the output end of the cylinder (14).

8. The bridge erecting machine with good stability according to claim 1, characterized in that: Each of the support legs (2) is provided with an external connection hole (28).

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