Driving wheel set mechanism of steel box girder pushing system

Abstract

The utility model relates to the technical field of bridge construction, and discloses a driving wheel set mechanism of a steel box girder pushing system, which comprises a base, stand columns are arranged at four corners of the top of the base, a hydraulic oil cylinder is arranged at the top of the base, and a lifting shell is arranged at one end of a piston rod of the hydraulic oil cylinder. A plurality of driving rollers are movably installed in the lifting shell, a driving motor is installed on the outer wall of one side of the lifting shell, the lifting shell is pushed through the hydraulic oil cylinder, tight contact between the driving rollers and the bottom of the steel box girder is achieved, and the steel box girder is effectively driven to move horizontally through the driving motor and a gear system. In the pushing driving process, the limiting wheel is in close contact with the side edge of the steel box girder by adjusting the position of the movable seat, the steel box girder can be limited, deviation of the steel box girder is prevented, the stability and safety in the pushing process are improved, the pushing accuracy is effectively guaranteed, construction errors caused by deviation are reduced, and the construction efficiency is improved. And the overall construction efficiency and precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to an active wheel group mechanism of a steel box girder jacking system. Background Art

[0002] In modern bridge construction, steel box girders are widely used due to their structural stability and strength advantages. However, due to the large size and heavy weight of steel box girders, they need to be accurately pushed from the prefabrication site to the designated position during the installation process, and jacking technology has therefore become one of the key construction methods. During the jacking process, how to ensure the smooth and accurate movement of the steel box girder is the key to successful construction. However, during the use of existing jacking equipment, problems such as unstable jacking and deviation of the steel box girder are often encountered. This not only increases the difficulty of construction, but may also cause construction errors and affect the overall structure and safety of the bridge. Especially when the steel box girder is long and the construction environment is complex, the deviation problem is more prominent. Therefore, there is a need for a technical solution that can effectively prevent the deviation of the steel box girder and ensure the accuracy of the jacking process, so as to improve construction efficiency and ensure project quality and safety. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a driving wheel group mechanism of a steel box girder jacking system.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A driving wheel assembly mechanism of a steel box girder jacking system includes a base, columns are installed at the four corners of the top of the base, a hydraulic cylinder is installed on the top of the base, a lifting shell is installed at one end of the hydraulic cylinder piston rod, a plurality of driving rollers are movably installed inside the lifting shell, a driving motor is installed on one outer wall of the lifting shell, a driving gear is provided on the output shaft of the driving motor, a driven gear is provided on the end of the driving roller close to the driving motor, and the circumference of the driven gear is meshed with the circumference of the driving gear; mounting side wings are provided on both sides of the top of the lifting shell, a movable seat is movably provided on the top of the mounting side wings, a mounting frame is installed on the top of the movable seat, and a limiting wheel is movably installed inside the mounting frame.

[0006] As a further solution of the present invention: a guide groove is provided on the top of the mounting wing, a guide component is provided on the bottom of the movable seat, and the bottom end of the guide component extends into the guide groove.

[0007] As a further solution of the present invention: a plurality of first positioning holes are provided on the top of the mounting wing, and a second positioning hole is provided on the top of the movable seat.

[0008] As a further solution of the present invention: a horizontally arranged limiting rod is provided between two adjacent columns, and the two ends of the bottom of the lifting shell are respectively located on the top of the two limiting rods.

[0009] As a further solution of the present invention: U-shaped guide components are provided at the four corners of the lifting shell, and the columns are located inside the guide components.

[0010] As a further solution of the present invention: a limiting component is provided on the top of the column, and the outer diameter of the limiting component is greater than the inner diameter of the guide component.

[0011] As a further solution of the present invention: anti-slip bars are arranged at intervals on the bottom of the base to increase the friction between the base and the ground.

[0012] The beneficial effects of the present invention are as follows: the driving wheel assembly mechanism of the steel box girder jacking system provided by the present invention drives the lifting shell through the hydraulic cylinder to achieve close contact between the driving roller and the bottom of the steel box girder, and effectively drives the horizontal movement of the steel box girder through the driving motor and gear system. During the driving jacking process, the limiting wheel adjusts the position of the movable seat to closely contact the side of the steel box girder, which can limit it and prevent the steel box girder from deviating. This design not only improves the stability and safety of the jacking process, but also effectively ensures the accuracy of the jacking, reduces the construction errors caused by deviation, and improves the overall construction efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the driving wheel group mechanism of the steel box girder jacking system proposed in the utility model;

[0014] Figure 2 The utility model provides a structural diagram of a limit wheel, a mounting frame and a movable seat in a driving wheel assembly mechanism of a steel box girder pushing system.

[0015] In the figure: 1-base, 2-anti-slip bar, 3-column, 4-hydraulic cylinder, 5-guide component, 6-drive motor, 7-lifting shell, 8-driven gear, 9-drive roller, 10-mounting frame, 11-limiting wheel, 12-mounting side wing, 13-positioning hole 1, 14-limiting rod, 15-guide groove, 16-movable seat, 17-guide component, 18-positioning hole 2, 19-limiting component. DETAILED DESCRIPTION

[0016] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0017] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0018] Reference Figure 1-2 , a driving wheel group mechanism of a steel box girder pushing system, including a base 1, with columns 3 installed at the four corners of the top of the base 1, a hydraulic cylinder 4 installed on the top of the base 1, a lifting shell 7 installed at one end of the piston rod of the hydraulic cylinder 4, and a plurality of driving rollers 9 movably installed inside the lifting shell 7, a driving motor 6 is installed on the outer wall of one side of the lifting shell 7, and the output shaft of the driving motor 6 is provided with a driving gear, and a driven gear 8 is provided at the end of the driving roller 9 close to the driving motor 6, and the circumference of the driven gear 8 is meshed with the circumference of the driving gear; mounting side wings 12 are provided on both sides of the top of the lifting shell 7, and a movable seat 16 is movably provided on the top of the movable seat 16, and a mounting frame 10 is installed on the top of the movable seat 16, and a limiting wheel 11 is movably installed inside the mounting frame 10.

[0019] When in use, the base 1 is placed on the ground at the bottom of the steel box girder to be pushed and driven, and the lifting shell 7 is pushed upward by the hydraulic cylinder 4 until the side of the driving roller 9 is against the bottom of the steel box girder, and the driving motor 6 and the driving gear and the driven gear 8 are used to drive the driving roller 9 to rotate, thereby driving the steel box girder to move horizontally. Before driving the jacking, the position of the movable seat 16 on the mounting side wing 12 can be adjusted until the side of the limiting wheel 11 is against the side of the steel box girder, that is, when the driving roller 9 drives the steel box girder to move horizontally, the limiting wheel 11 can limit the side of the steel box girder, effectively preventing the steel box girder from deviating during the jacking process, thereby ensuring the accuracy of the jacking.

[0020] As a preferred embodiment of the present utility model, a guide groove 15 is provided at the top of the mounting side wing 12, and a guide component 17 is provided at the bottom of the movable seat 16. The bottom end of the guide component 17 extends into the guide groove 15. When the movable seat 16 is moved on the mounting side wing 12, the guide component 17 moves in the guide groove 15 to limit and guide the movement of the movable seat 16.

[0021] As a preferred embodiment of the present invention, a plurality of positioning holes 13 are provided on the top of the mounting wing 12, and a positioning hole 2 18 is provided on the top of the movable seat 16. After the movable seat 16 is moved, the positioning pin can be inserted into the positioning hole 2 18 and the positioning hole 13 to position the movable seat 16 and the limiting wheel 11, thereby avoiding the movement of the movable seat 16 during use.

[0022] As a preferred embodiment of the present utility model, a horizontally arranged limit rod 14 is provided between two adjacent columns 3, and the two ends of the bottom of the lifting shell 7 are respectively located at the top of the two limit rods 14. When the jacking is completed and the hydraulic cylinder 4 drives the lifting shell 7 to move downward and reset, the limit rod 14 limits the downward movement of the lifting shell 7.

[0023] As a preferred embodiment of the present invention, the four corners of the lifting shell 7 are provided with U-shaped guide components 5, and the column 3 is located inside the guide component 5. When the hydraulic cylinder 4 pushes the lifting shell 7 to move up and down, the guide component 5 limits and guides the lifting movement of the lifting shell 7.

[0024] As a preferred embodiment of the present invention, a limiting component 19 is provided at the top of the column 3. The outer diameter of the limiting component 19 is larger than the inner diameter of the guide component 5. When the hydraulic cylinder 4 pushes the lifting shell 7 to move upward, the limiting component 19 limits the guide component 5 to avoid the bottom of the lifting shell 7 moving to the top of the column 3 during misoperation, thereby preventing the lifting shell 7 and the column 3 from being misaligned, thereby ensuring safety of use.

[0025] As a preferred embodiment of the present invention, anti-slip bars 2 are provided at intervals at the bottom of the base 1 to increase the friction between the base 1 and the ground to prevent the base 1 from sliding on the ground during the pushing process.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A driving wheel assembly mechanism of a steel box girder jacking system, comprising a base (1), characterized in that: The four corners of the top of the base (1) are all equipped with columns (3), the top of the base (1) is equipped with a hydraulic cylinder (4), one end of the piston rod of the hydraulic cylinder (4) is equipped with a lifting shell (7), a plurality of driving rollers (9) are movably installed inside the lifting shell (7), a driving motor (6) is installed on the outer wall of one side of the lifting shell (7), the output shaft of the driving motor (6) is provided with a driving gear, and the end of the driving roller (9) close to the driving motor (6) is provided with a driven gear (8), and the circumference of the driven gear (8) is meshed with the circumference of the driving gear; Mounting wings (12) are provided on both sides of the top of the lifting shell (7), a movable seat (16) is movably provided on the top of the mounting wings (12), a mounting frame (10) is installed on the top of the movable seat (16), and a limiting wheel (11) is movably installed inside the mounting frame (10).

2. The driving wheel assembly mechanism of the steel box girder jacking system according to claim 1, characterized in that: A guide groove (15) is provided at the top of the mounting wing (12), and a guide component (17) is provided at the bottom of the movable seat (16), wherein the bottom end of the guide component (17) extends into the guide groove (15).

3. The driving wheel assembly mechanism of the steel box girder jacking system according to claim 2, characterized in that: A plurality of first positioning holes (13) are provided on the top of the mounting wing (12), and a second positioning hole (18) is provided on the top of the movable seat (16).

4. The driving wheel assembly mechanism of the steel box girder jacking system according to claim 1, characterized in that: A horizontally arranged limiting rod (14) is provided between two adjacent upright columns (3), and the two ends of the bottom of the lifting shell (7) are respectively located on the top of the two limiting rods (14).

5. The driving wheel assembly mechanism of the steel box girder jacking system according to claim 1, characterized in that: A U-shaped guide component (5) is provided at each of the four corners of the lifting shell (7), and the column (3) is located inside the guide component (5).

6. The driving wheel assembly mechanism of the steel box girder jacking system according to claim 5, characterized in that: A limiting component (19) is provided on the top of the column (3), and the outer diameter of the limiting component (19) is larger than the inner diameter of the guide component (5).

7. The driving wheel assembly mechanism of the steel box girder jacking system according to claim 1, characterized in that: The bottom of the base (1) is provided with anti-slip bars (2) arranged at intervals, which are used to increase the friction between the base (1) and the ground.

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