Inclination automatic correction device for steel box girder incremental launching construction support

Abstract

The invention belongs to the technical field of steel box girder construction pushing, and relates to an automatic inclination correction device for a steel box girder pushing construction support, which comprises a support, two sides of the support are fixedly connected with supporting mechanisms, one end of the support is fixedly connected with a motor I, an output shaft of the motor I is fixedly connected with a screw rod I, and the screw rod I is rotatably connected to the inner wall of the support. One surface of the lead screw is in threaded connection with a moving block, the moving block is slidably connected to the inner wall of the support, one end of the moving block is fixedly connected with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a main plate, an inclination sensor is fixedly connected below the main plate, one end of the main plate is fixedly connected with a limiting rod, and the limiting rod is slidably connected to the inner wall of the moving block; one side of the turntable is meshed with an adjusting mechanism, and the surface of the turntable is fixedly connected with an anti-skid plate. According to the automatic inclination correction device for the steel box girder incremental launching construction support, inclination detection can be conveniently conducted on a steel box girder, correction is conducted at the same time, the construction quality of the steel box girder can be improved, and errors are reduced.

Description

Technical Field

[0001] The invention relates to the field of steel box girder jacking construction, and in particular to an automatic inclination correction device for a steel box girder jacking construction support. Background Art

[0002] The steel box girder jacking support is a support structure specially designed for the jacking construction of steel box girders. During the bridge construction process, when the steel box girder needs to be pushed from one position to another (such as across a river, canyon, etc.), the jacking support can provide sufficient support force and stability to ensure the safety of the steel box girder during the jacking process.

[0003] For steel box girder bridges constructed using the jacking method, in the prior art, the jacking support used for steel box girder construction usually includes a frame body, a worm gear transmission structure is provided inside, a screw lifting structure is provided on the top, and a support plate is installed at the moving end. Stop plates are installed on both sides of the top of the support plate, and a stretching mechanism is provided on the outer wall of the stop plate. However, this design cannot ensure that the steel box girder moves along the original path when the steel box girder jacking support drives the steel box girder to move. It is easily affected by external factors and other factors, and there is a problem of insufficient stability, which causes the steel box girder to deviate and tilt, affecting the quality and safety of the steel box girder construction.

[0004] The present invention provides an automatic inclination correction device for a steel box girder jacking construction support, which drives two limit blocks to move away from or approach each other at the same time by arranging two stretching mechanisms, thereby controlling the two limit blocks to fix steel box girders of different widths, and at the same time, by sliding on a fixed track, the two limit blocks can calibrate the position of the steel box girder that is offset during the laying process when they approach each other, thereby avoiding errors that may be caused by manual calibration by staff, and at the same time, the support plate is driven to adjust its height through the screw lifting structure, so that the jacking support has a wider range of use and higher safety and stability. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic inclination correction device for a steel box girder jacking construction support, which has the advantages of convenient inclination detection of the steel box girder and correction at the same time, thereby improving the quality of steel box girder construction; the purpose of the present invention is also to provide a safer and more stable automatic inclination correction method for a steel box girder jacking construction support.

[0006] In order to solve the above technical problems, the technical solution of an automatic tilt correction device for a steel box girder jacking construction support in the present invention is as follows:

[0007] The object of the present invention is to provide an automatic inclination correction device for a steel box girder jacking construction support, comprising a support, one end of the support is fixedly provided with a motor 1, the output shaft of the motor 1 is fixedly connected with a screw rod 1, the screw rod 1 is rotatably arranged inside the support, the surface of the screw rod 1 is threadedly connected with a moving block, the moving block can move horizontally relative to the support, one end of the moving block is fixedly connected with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a main board, a tilt sensor is fixedly connected below the main board, one end of the main board is fixedly connected with a limit rod, the limit rod passes through the moving block and can slide relative to the moving block, the surface of the main board is rotatably connected with a turntable, one side of the turntable is engaged with an adjustment mechanism, and the upper surface of the turntable is also fixedly connected with an anti-skid plate.

[0008] Furthermore, both sides of the bracket are fixedly connected with a supporting mechanism, and the supporting mechanism includes a fixing frame, and the fixing frame is respectively fixedly connected to both sides of the bracket, and one end of the fixing frame is fixedly connected with a motor three, and the output shaft of the motor three is fixedly connected with a rotating rod, and the surface of the rotating rod is meshed with half teeth, and one end of the half teeth is fixedly connected to the supporting frame.

[0009] Furthermore, the adjustment mechanism includes a limit plate, which is fixedly connected to the bottom of the main board. One end of the limit plate is also fixedly connected to motor 2. The output shaft of motor 2 is fixedly connected to screw rod 2. The surface of screw rod 2 is threadedly connected to a connecting rod. One end of the connecting rod is fixedly connected to a rack, and one side of the rack engages with the turntable.

[0010] Furthermore, the surfaces of the moving blocks are provided with limiting holes, and the limiting rods are slidably connected in the limiting holes.

[0011] Furthermore, the half teeth are rotatably connected between each pair of support frames.

[0012] Furthermore, a tooth groove is provided on the surface of the turntable, and one side of the rack is engaged with the tooth groove.

[0013] Furthermore, the connecting rod is slidably connected to the inner wall of the limiting plate.

[0014] The present invention has the following beneficial effects:

[0015] The device is stabilized by a bracket, and the bracket is placed on the bridge bracket. The hydraulic cylinder is started to drive the main board to move upward, and the limit rod slides on the inner wall of the moving block, so that the main board drives the turntable and the anti-skid plate to move, and the surface of the anti-skid plate contacts the surface of the steel box girder, so that the steel box girder rises, and the motor one is started. The motor one drives the screw rod one to rotate, so that the screw rod one drives the moving block to move on the inner wall of the bracket, and drives the steel box girder to move. The tilt sensor detects the steel box girder during the movement. When there is a tilt offset on the horizontal plane, the motor two drives the screw rod two to rotate, so that the screw rod two drives the connecting rod to slide on the inner wall of the limit plate, so that the connecting rod drives the rack to move, and the rack drives the turntable to rotate, thereby correcting the horizontal position of the steel box girder. The motor three drives the rotating rod to rotate, so that the rotating rod drives the half-tooth to move on the inner wall of the support frame, so that the half-tooth drives the support frame to rotate and then contact the bridge bracket. The support frame further stabilizes the bracket to prevent the bracket from sliding, which is convenient for tilt detection of the steel box girder and correction at the same time, thereby improving the quality of steel box girder construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an automatic tilt correction device for a steel box girder jacking construction support of the present invention;

[0017] Figure 2 It is a schematic cross-sectional structure diagram of an automatic tilt correction device for a steel box girder jacking construction support of the present invention;

[0018] Figure 3 It is a partial structural schematic diagram of an automatic tilt correction device for a steel box girder jacking construction support of the present invention;

[0019] Figure 4 The present invention is a schematic diagram of the support mechanism structure of an automatic tilt correction device for a steel box girder jacking construction support.

[0020] Explanation of the accompanying drawings: 1. bracket; 2. motor 1; 3. screw rod 1; 4. moving block; 5. hydraulic cylinder; 6. limit rod; 7. main board; 8. turntable; 9. anti-skid plate; 10. tilt sensor; 11. limit plate; 12. motor 2; 13. screw rod 2; 14. connecting rod; 15. rack; 16. fixed frame; 17. motor 3; 18. rotating rod; 19. half tooth; 20. support frame. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. The preferred embodiments of the present invention are given in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0023] An embodiment of an automatic tilt correction device for a steel box girder jacking construction support of the present invention is as follows: Figure 1-4 As shown, an automatic inclination correction device for a steel box girder jacking construction support includes a support 1, which stabilizes the device. Both sides of the support 1 are fixedly connected to a supporting mechanism, which further stabilizes the support 1 to prevent the support 1 from sliding. One end of the support 1 is fixedly connected to a motor 2, and the output shaft of the motor 2 is fixedly connected to a screw rod 3, which is rotatably connected to the inner wall of the support 1. The surface of the screw rod 3 is threadedly connected to a moving block 4, and the motor 2 drives the screw rod 3 to rotate, and then drives the moving block 4 to move. The moving blocks 4 are all slidably connected to the inner wall of the support 1, and one end of the moving block 4 is fixedly connected to a hydraulic cylinder 5, and the output end of the hydraulic cylinder 5 is fixedly connected to a main board 7. The hydraulic The cylinder 5 drives the main board 7 to move upward. A tilt sensor 10 is fixedly connected under the main board 7. The tilt sensor 10 detects the steel box girder. One end of the main board 7 is fixedly connected to a limit rod 6. The limit rod 6 is slidably connected to the inner wall of the moving block 4. The limit rod 6 limits the moving position of the main board 7. A turntable 8 is rotatably connected to the surface of the main board 7. An adjustment mechanism is engaged on one side of the turntable 8. The adjustment mechanism can drive the turntable 8 to rotate for horizontal angle adjustment. An anti-skid plate 9 is fixedly connected to the surface of the turntable 8. The anti-skid plate 9 is convenient for placing the steel box girder and drives the steel box girder to move to prevent the steel box girder from slipping. Limit holes are provided on the surface of the moving block 4, and the limit rod 6 is slidably connected in the limit holes.

[0024] The bracket 1 stabilizes the device, and the bracket 1 is placed on the bridge bracket 1. The hydraulic cylinder 5 is started to drive the main board 7 to move upward, and the limit rod 6 slides on the inner wall of the moving block 4, so that the main board 7 drives the turntable 8 and the anti-skid plate 9 to move, so that the surface of the anti-skid plate 9 contacts the surface of the steel box girder, so that the steel box girder rises, and then the motor 2 is started. The motor 2 drives the screw rod 3 to rotate, so that the screw rod 3 drives the moving block 4 to move on the inner wall of the bracket 1, and drives the steel box girder to move. The tilt sensor 10 detects the horizontal angle of the steel box girder during the movement. When there is a tilt offset, the adjustment mechanism can drive the turntable 8 to rotate to correct the steel box girder. The support mechanism further stabilizes the bracket 1 to prevent the bracket 1 from sliding, which is convenient for the tilt detection of the steel box girder and correction at the same time to improve the quality of the steel box girder construction.

[0025] like Figure 1-4As shown, the support mechanism includes a fixing frame 16, which stabilizes the support mechanism. The fixing frame 16 is fixedly connected to both sides of the bracket 1, one end of the fixing frame 16 is fixedly connected to a motor 3 17, the output shaft of the motor 3 17 is fixedly connected to a rotating rod 18, the surface of the rotating rod 18 is meshed with half teeth 19, one end of the half teeth 19 is fixedly connected to a support frame 20, and the half teeth 19 are rotatably connected between the inner wall of the fixing frame 16 and both sides of the bracket 1.

[0026] Motor three 17 drives the rotating rod 18 to rotate, so that the rotating rod 18 drives the half tooth 19 to flip on the inner wall of the support frame 20, so that the half tooth 19 drives the support frame 20 to flip and contact the bridge support 1, and the support frame 20 further stabilizes the support 1 to prevent the support 1 from sliding horizontally.

[0027] like Figure 1-4 As shown, the adjustment mechanism includes a limit plate 11, which is fixedly connected to the bottom of the main board 7, one end of the limit plate 11 is fixedly connected to a motor 2 12, the output shaft of the motor 2 12 is fixedly connected to a screw 2 13, the surface of the screw 2 13 is threadedly connected to a connecting rod 14, one end of the connecting rod 14 is fixedly connected to a rack 15, one side of the rack 15 engages with the gear surface, the surface of the turntable 8 is provided with a tooth groove, one side of the rack 15 engages with the tooth groove, and the connecting rod 14 is slidably connected to the inner wall of the limit plate 11.

[0028] Motor 2 12 drives screw rod 2 13 to rotate, so that screw rod 2 13 drives connecting rod 14 to slide on the inner wall of limit plate 11, so that connecting rod 14 drives rack 15 to move, so that rack 15 drives turntable 8 to rotate on the surface of main board 7, and corrects the horizontal position of steel box girder.

[0029] The tilt sensor 10 detects the horizontal tilt angle of the steel box girder in real time, sends a signal to the motor 12, and the motor 12 receives the signal to control the start and stop of the motor 12.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic tilt correction device for a steel box girder jacking construction support, comprising a support (1), characterized in that: A motor (2) is fixedly arranged at one end of the bracket (1), and a screw rod (3) is fixedly connected to the output shaft of the motor (2). The screw rod (3) is rotatably arranged inside the bracket (1). A moving block (4) is threadedly connected to the surface of the screw rod (3). The moving block (4) can move horizontally relative to the bracket (1). A hydraulic cylinder (5) is fixedly connected to one end of the moving block (4). The output end of the hydraulic cylinder (5) is fixedly connected to a main board (7). A tilt sensor (10) is fixedly connected below the main board (7). A limit rod (6) is fixedly connected to one end of the main board (7). The limit rod (6) passes through the moving block (4) and can slide relative to the moving block (4). A turntable (8) is rotatably connected to the surface of the main board (7). An adjustment mechanism is engaged on one side of the turntable (8). An anti-slip plate (9) is also fixedly connected to the upper surface of the turntable (8).

2. The automatic tilt correction device for a steel box girder jacking construction support according to claim 1 is characterized in that: Both sides of the bracket (1) are fixedly connected to a support mechanism, the support mechanism comprising a fixing frame (16), the fixing frame (16) is respectively fixedly connected to both sides of the bracket (1), one end of the fixing frame (16) is fixedly connected to a motor three (17), the output shaft of the motor three (17) is fixedly connected to a rotating rod (18), the surface of the rotating rod (18) is meshed with a half tooth (19), and one end of the half tooth (19) is fixedly connected to a support frame (20).

3. The automatic tilt correction device for a steel box girder jacking construction support according to claim 2 is characterized in that: The adjustment mechanism comprises a limit plate (11), the limit plate (11) is fixedly connected below the main board (7), one end of the limit plate (11) is also fixedly connected to a second motor (12), the output shaft of the second motor (12) is fixedly connected to a second screw rod (13), the surface of the second screw rod (13) is threadedly connected to a connecting rod (14), one end of each connecting rod (14) is fixedly connected to a rack (15), and one side of the rack (15) is engaged with the rotating disk (8).

4. The automatic tilt correction device for a steel box girder jacking construction support according to claim 3 is characterized in that: The surfaces of the moving blocks (4) are provided with limiting holes, and the limiting rods (6) are slidably connected in the limiting holes.

5. The automatic tilt correction device for a steel box girder jacking construction support according to claim 4 is characterized in that: The half teeth (19) are rotatably connected between each pair of support frames (20).

6. The automatic tilt correction device for a steel box girder jacking construction support according to claim 5 is characterized in that: The surface of the rotating disk (8) is provided with tooth grooves, and one side of the rack (15) is meshed with the tooth grooves.

7. The automatic tilt correction device for a steel box girder jacking construction support according to claim 6 is characterized in that: The connecting rod (14) is slidably connected to the inner wall of the limiting plate (11).

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