Steel box girder pushing mechanism with deviation rectifying function

Abstract

The utility model discloses a steel box girder pushing mechanism with the deviation rectifying function, which comprises a steel box girder body, a temporary pier frame and a center seat, the temporary pier frame is arranged below the steel box girder body, a base is fixed on the upper surface of the temporary pier frame, a first side plate is fixed on the rear side face of the base, a sliding groove is formed in the base, and a second side plate is fixed on the center seat. The output end of the first jack is fixedly connected with the second side plate, a second jack is fixed to the upper surface of the center base, a jacking block is fixed to the output end of the second jack, a limiting plate is arranged on the outer side of the center base, and the first side plate is symmetrically arranged about the center line of the base. A protruding block is integrally installed at the bottom end of the center base, and a protruding block at the bottom end of the center base is arranged in the sliding groove. According to the steel box girder pushing mechanism with the deviation rectifying function, the butt joint plate is limited through the limiting plate, deviation of the steel box girder body is avoided, the deviation preventing structure is simple, and the butt joint plate is convenient to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of steel box girder jacking, in particular to a steel box girder jacking mechanism with a deviation correction function. Background Art

[0002] The jacking method is a bridge construction method that does not require large lifting equipment for lifting. Usually, a set of temporary slide rails are set up on the bridge axis first, and then the bridge deck beam is lifted to a position parallel to the slide rails by a jack, and then the beam is pulled to the specified position by a steel strand for assembly. This is also called drag-type jacking. When moving the steel box beam, the steel box beam is driven to move by the jacking mechanism. However, during the dragging process, the steel strand is easily broken and the steel strand is detached from the pressure tooth anchor, which poses a great safety hazard. Now, a jacking machine is used for jacking work, and a correction structure is set to avoid the deviation of the steel box beam.

[0003] The Chinese utility model patent with the authorization announcement number CN220266332U discloses a steel box girder jacking mechanism, including a three-dimensional jacking jack and a correction member. The jacking jack is provided with a support seat to contact the bottom surface of the steel box girder. One side of the support seat extends vertically downward to form a mounting plate, and the correction member is provided on the mounting plate; the correction member includes a long screw, a vertical plate, a lead screw with a hand wheel and a limit plate. The long screw is arranged horizontally along the width direction of the steel box girder, and one end of the long screw is connected to the mounting plate; the long screw is laterally slidably connected to the vertical plate, the upper end of the vertical plate extends vertically upward and overlaps the steel box girder, the upper end of the vertical plate is threadedly connected to the lead screw, one end of the lead screw passes through the vertical plate to connect to the limit plate, and the limit plate is always in rolling contact with the side wall of the steel box girder. The jacking jack of the utility model drives the support seat and the correction member to run together, and the correction member always abuts against the side wall of the steel box girder to limit it, so that the steel box girder can be guided and corrected during the forward movement of the steel box girder, avoiding deliberate correction operations at a later stage;

[0004] However, the existing steel box girder pushing mechanism with a deviation correction function has a complex correction structure and is inconvenient to dismantle. Therefore, we propose a steel box girder pushing mechanism with a deviation correction function to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a steel box girder pushing mechanism with a deviation correction function, so as to solve the problem that the deviation correction structure of the existing steel box girder pushing mechanism with a deviation correction function proposed in the above background technology is complicated and inconvenient to dismantle.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel box girder jacking mechanism with a deviation correction function, comprising a steel box girder body, a temporary pier frame and a center seat:

[0007] A temporary pier is provided below the steel box girder body, and a base is fixed on the upper surface of the temporary pier, a first side plate is fixed on the rear side of the base, and a first jack is fixed on the front side of the first side plate, and a slide groove is provided inside the base;

[0008] The left and right sides of the center seat are both fixed with second side plates, the output end of the first jack is fixedly connected to the second side plate, the upper surface of the center seat is fixed with a second jack, and the output end of the second jack is fixed with a top block, and a limiting plate is arranged on the outer side of the center seat.

[0009] Preferably, the first side panels are symmetrically arranged about a center line of the base.

[0010] Preferably, a protrusion is integrally mounted on the bottom end of the center seat, and the protrusion at the bottom end of the center seat is arranged inside the slide groove.

[0011] Preferably, the lower surface of the limiting plate is fixed to the base by welding.

[0012] Preferably, butt joint plates are fixed to both left and right ends of the lower surface of the steel box girder body by screws, and the butt joint plates are symmetrically arranged about the center line of the steel box girder body.

[0013] Preferably, the longitudinal section of the butt joint plate is in a "T"-shaped structure, and the inner side surface of the limiting plate fits with the outer side surface of the butt joint plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the steel box beam pushing mechanism with deviation correction function limits the butt joint plate by the limiting plate, thereby preventing the steel box beam body from deflecting, and the anti-deviating structure is simple, and the butt joint plate is convenient to remove;

[0015] 1. A limiting plate and a butt joint plate are provided. In the process of moving the steel box girder body, the butt joint plate is limited by the limiting plate to prevent the butt joint plate from deflecting, thereby preventing the steel box girder body from deflecting;

[0016] 2. A steel box girder body and a butt joint plate are provided, and the butt joint plate is fixed to the steel box girder body by screws. After the steel box girder body is moved to the destination, the screws are removed to facilitate the removal of the butt joint plate from the steel box girder body;

[0017] 3. A center seat and a slide groove are provided, a protrusion is integrally installed at the bottom of the center seat, and a protrusion at the bottom of the center seat is provided inside the slide groove. The position of the center seat is limited by the slide groove, so that the center seat moves stably and the safety is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view cutaway structure of the utility model;

[0019] Figure 2It is a side view cutaway structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the center seat and the base connected to the utility model;

[0021] Figure 4 It is a schematic diagram of the overall structure of the docking plate of the utility model.

[0022] In the figure: 1. Steel box girder body; 2. Temporary pier; 3. Base; 4. First side plate; 5. First jack; 6. Center seat; 7. Second side plate; 8. Slide; 9. Second jack; 10. Top block; 11. Limiting plate; 12. Butt plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a steel box girder pushing mechanism with a deviation correction function, comprising a steel box girder body 1, a temporary pier 2, a base 3, a first side plate 4, a first jack 5, a center seat 6, a second side plate 7, a chute 8, a second jack 9, a top block 10, a limiting plate 11 and a docking plate 12, such as Figure 1 and Figure 2 As shown, support columns are evenly spaced on the temporary pier frame 2, bases 3 are evenly fixed on the upper surface of the temporary pier frame 2, and the steel box girder body 1 is erected on the temporary pier frame 2 by hoisting equipment, and the steel box girder body 1 is supported by support columns evenly spaced on the temporary pier frame 2;

[0025] During jacking, the second jack 9 drives the jack block 10 to rise, and lifts up the steel box girder body 1. The rear side of the base 3 is fixed with the first side plate 4, and the front side of the first side plate 4 is fixed with the first jack 5. The first jack 5 drives the center seat 6 to slide on the base 3, and the protrusion integrally installed at the bottom end of the center seat 6 slides inside the slide groove 8, thereby driving the second jack 9 and the steel box girder body 1 to move forward and backward, and pushing the steel box girder body 1 to move;

[0026] like Figure 2 , Figure 3 and Figure 4As shown, a limiting plate 11 is arranged on the outer side of the center seat 6, and the lower surface of the limiting plate 11 is fixed on the base 3 by welding. The left and right ends of the lower surface of the steel box girder body 1 are fixed with docking plates 12 by screws, and the docking plates 12 are symmetrically arranged about the center line of the steel box girder body 1. The longitudinal section of the docking plate 12 is a "T"-shaped structure, and the inner side surface of the limiting plate 11 is in contact with the outer side surface of the docking plate 12. When the steel box girder body 1 is raised, the docking plate 12 below the steel box girder body 1 does not leave the limiting plate 11. When the steel box girder body 1 moves forward and backward, the position of the steel box girder body 1 is limited by the limiting plate 11 and the docking plate 12 to prevent the steel box girder body 1 from deflecting.

[0027] Since the docking plate 12 is fixedly connected to the steel box girder body 1 by screws, after the steel box girder body 1 is moved to the destination, the screws are removed and the docking plate 12 is removed from the steel box girder body 1. The first jack 5 and the second jack 9 are both existing technologies and are not described in detail. The above completes a series of operations of the steel box girder pushing mechanism with a correction function. The contents not described in detail in this description belong to the existing technologies known to professional and technical personnel in this field.

[0028] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steel box girder jacking mechanism with a deviation correction function, comprising a steel box girder body (1), a temporary pier (2) and a center seat (6), characterized in that: A temporary pier (2) is arranged below the steel box girder body (1), and a base (3) is fixed on the upper surface of the temporary pier (2), a first side plate (4) is fixed on the rear side of the base (3), and a first jack (5) is fixed on the front side of the first side plate (4), and a slide groove (8) is provided inside the base (3); A second side plate (7) is fixed to the left and right sides of the center seat (6); the output end of the first jack (5) is fixedly connected to the second side plate (7); a second jack (9) is fixed to the upper surface of the center seat (6); and a top block (10) is fixed to the output end of the second jack (9); and a limiting plate (11) is arranged on the outer side of the center seat (6).

2. The steel box girder pushing mechanism with deviation correction function according to claim 1 is characterized in that: The first side panels (4) are symmetrically arranged about the center line of the base (3).

3. The steel box girder pushing mechanism with deviation correction function according to claim 1 is characterized in that: A protrusion is integrally mounted on the bottom end of the center seat (6), and the inside of the slide groove (8) is provided with a protrusion at the bottom end of the center seat (6).

4. The steel box girder pushing mechanism with deviation correction function according to claim 1 is characterized in that: The lower surface of the limiting plate (11) is fixed on the base (3) by welding.

5. The steel box girder pushing mechanism with deviation correction function according to claim 1 is characterized in that: The left and right ends of the lower surface of the steel box girder body (1) are both fixed with butt joint plates (12) by means of screws, and the butt joint plates (12) are symmetrically arranged with respect to the center line of the steel box girder body (1).

6. The steel box girder pushing mechanism with deviation correction function according to claim 5 is characterized in that: The longitudinal section of the docking plate (12) is in a "T"-shaped structure, and the inner side surface of the limiting plate (11) is in contact with the outer side surface of the docking plate (12).

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