Positioning device for steel box girder construction

Abstract

The utility model provides a positioning device for steel box girder construction, which relates to the technical field of bridge construction and comprises a steel box girder main body and a pier main body, a bearing guide rail is arranged on the top surface of the pier main body, adjusting positioning components are arranged at two ends of the surface of the bearing guide rail, and the steel box girder main body is arranged between adjacent adjusting positioning components. A laser positioning assembly is arranged between the two adjusting and positioning assemblies, a telescopic air cylinder is embedded into a rotating base of one adjusting and positioning assembly, the movable end of the telescopic air cylinder is connected with an adjusting shaft arm, and the top end of the adjusting shaft arm is in shaft connection with an adjusting arc plate. The top face of the bridge pier body is connected with two sets of adjusting and positioning assemblies through bearing guide rails to support the steel box girder body, the top end of the steel box girder body is lifted by controlling an adjusting arc plate to move up and down through a telescopic air cylinder on the top face of one set of adjusting and positioning assembly, and the laser positioning assembly calculates the adjusted angle. And inclination adjustment and vertical calculation of the steel box girder main body can be conveniently and accurately carried out, and the adjustment precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a positioning device for steel box girder construction. Background Art

[0002] Steel box girder is also called steel plate box girder. It is a common structure of highway bridges. It is hollow inside and looks like a box, so it is called steel box girder. The installation of steel box girder is generally completed by crane hoisting.

[0003] According to a steel box beam positioning and splicing device disclosed in Chinese patent number CN116695565A, the device comprises a base; an adjusting seat is rotatably connected to the top of the base; two pairs of driving wheels are rotatably connected to the top of the adjusting seat; a driven gear is fixedly connected to the end of the driving wheel; a reduction motor is fixedly connected to the side of the adjusting seat; a driving gear is fixedly connected to the output shaft of the reduction motor; a chain is installed on the driving gear and the driven gear, and the driving wheel is controlled by the reduction motor to rotate to drive the steel box beam for splicing, and the lifting hydraulic cylinder lifts the steel box beam, and then the servo motor works to rotate the adjusting seat, so that the driving wheel can adjust the steel box beam laterally. Relying on the above-mentioned arrangement, the driving wheel is driven by the reduction motor to control and adjust the position of the steel box beam, so as to facilitate the staff to adjust the steel box beam and splice it, and the staff can operate on the ground at the same time, thereby reducing high-altitude operations and reducing dangers.

[0004] The above-mentioned comparative documents and prior arts have the problem that when adjusting and positioning the steel box girder, only the movement and rotation within the main plane of the steel box girder are achieved, and the inclination angle of the steel box girder cannot be checked and adjusted. For the inclined steel box girder structure, it still needs to be installed with the help of external cranes and other structures, which is not conducive to the actual installation and positioning of the steel box girder. Utility Model Content

[0005] The utility model aims to solve the shortcoming in the prior art that the inclination angle of the steel box beam cannot be adjusted, and proposes a positioning device for steel box beam construction.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a positioning device for steel box girder construction, comprising a steel box girder body and a pier body located at the bottom of the steel box girder, the top surface of the pier body is provided with a load-bearing guide rail, and both ends of the surface of the load-bearing guide rail are provided with adjustment positioning components, a steel box girder body is provided between adjacent adjusting positioning components, a laser positioning component is provided between two groups of the adjusting positioning components, the adjusting positioning components include a load-bearing base and a rotating base, a telescopic cylinder is embedded in the rotating base of one group of the adjusting positioning components, the movable end of the telescopic cylinder is connected with an adjusting shaft arm, and the top end of the adjusting shaft arm is axially connected with an adjusting arc plate.

[0007] Preferably, a movable wheel is provided on the bottom surface of the load-bearing base, a rotating motor is embedded inside the load-bearing base, and the output shaft of the rotating motor is connected to the bottom surface of the rotating base, double-axis cylinders are embedded on both sides of the rotating motor, and the movable ends of the double-axis cylinders are connected to positioning clamps.

[0008] Preferably, the laser positioning assembly includes a laser receiver and a first laser emitter, a first laser emitter is provided on the side of a rotating base of a group of the adjusting positioning assemblies, a second laser emitter is embedded in the center position of the adjusting arc plate, and a laser receiver is bolted to the bottom surface of the adjusting arc plate.

[0009] Preferably, the vertical center line of the side of the first laser emitter coincides with the vertical center line of the side of the rotating base, and the first laser emitter is located on the side of the rotating base close to the top surface, and the first laser emitter and the second laser emitter are both electrically connected to the laser receiver.

[0010] Preferably, a horizontal center line of the top surface of the first laser emitter is collinear with a horizontal center line of the top surface of the second laser emitter, and a vertical center line of the second laser emitter coincides with a vertical center line of the laser receiver.

[0011] Preferably, two ends of the steel box girder body are respectively located on the top surface of the rotating base and the top surface of the adjusting arc plate, and the edge of the load-bearing guide rail is bolted to the top surface of the pier body.

[0012] Preferably, the bottom surface of the rotating base is completely against the top surface of the load-bearing base, the vertical center line of the rotating motor and the vertical center line of the rotating unit coincide with each other, and the positioning clamping plates are symmetrical along both sides of the top surface of the rotating base.

[0013] Beneficial Effects

[0014] In the utility model, the top surface of the pier body is connected with two sets of adjusting and positioning components through load-bearing guide rails to carry out load-bearing clamping and positioning of the steel box girder body. The adjusting and positioning components can control the position movement of the steel box girder body through the movement of the moving wheels. At the same time, the rotating base is driven to rotate by the rotating motor. Under the limit of the positioning clamp, the angle of the end of the steel box girder body can be adjusted, thereby meeting the requirements of adjusting and positioning of the steel box girder body during the bridge construction process. The structure is simple and easy to adjust. It does not need to be moved by a crane, which is convenient for the construction and assembly of the steel box girder body.

[0015] In the utility model, the top surface of the pier body is connected with two groups of adjusting and positioning components through load-bearing guide rails to support the steel box girder body, and the adjusting arc plate is controlled to move up and down by a telescopic cylinder on the top surface of one group of adjusting and positioning components to lift the top of the steel box girder body and adjust the angle of the steel box girder body. During the adjustment, the adjustment angle is calculated by the laser positioning component, which is convenient for accurate adjustment of the inclination and vertical calculation of the steel box girder body, thereby improving the adjustment accuracy and facilitating the positioning use during bridge construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0017] Figure 2 For the utility model Figure 1 A magnified image of point A;

[0018] Figure 3 It is an axonometric drawing of the utility model;

[0019] Figure 4 This is a usage scenario diagram of the utility model;

[0020] Figure 5 It is a front cross-sectional view of the adjustment and positioning component of the utility model.

[0021] Legend:

[0022] 1. Bridge pier body; 2. Load-bearing guide rails; 3. Steel box girder body; 4. Adjustment and positioning assembly; 401. Load-bearing base; 402. Moving wheels; 403. Rotating base; 404. Rotating motor; 405. Dual-axis cylinder; 406. Positioning splint; 5. Telescopic cylinder; 6. Adjustment shaft arm; 7. Adjustment arc plate; 8. Laser positioning assembly; 801. Laser receiver; 802. First laser transmitter; 803. Second laser transmitter. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0024] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment one:

[0026] Reference Figure 1-5A positioning device for steel box girder construction includes a steel box girder body 3 and a pier body 1 located at the bottom of the steel box girder. A load-bearing guide rail 2 is provided on the top surface of the pier body 1. Adjustment and positioning components 4 are provided at both ends of the surface of the load-bearing guide rail 2. The steel box girder body 3 is provided between adjacent adjustment and positioning components 4. The entire device supports the entire adjustment and positioning component 4 through the pier body 1 through the load-bearing guide rail 2. The adjustment and positioning component 4 is used for supporting the movement and positioning of the steel box girder body 3. When the entire device is installed and used, it is used for adjusting the movement of the steel box girder body 3 during the bridge construction process.

[0027] When the position is adjusted, it is mainly achieved through two groups of adjustment and positioning components 4. The specific structure is that the adjustment and positioning component 4 includes a load-bearing base 401 and a rotating base 403. The bottom surface of the load-bearing base 401 is provided with a moving wheel 402. A rotating motor 404 is embedded in the load-bearing base 401, and the output shaft of the rotating motor 404 is connected to the bottom surface of the rotating base 403. Double-axis cylinders 405 are embedded on both sides of the rotating motor 404, and the movable ends of the double-axis cylinders 405 are connected with positioning clamps 406. A telescopic cylinder 5 is embedded in the rotating base 403 of a group of adjustment and positioning components 4, and the movable end of the telescopic cylinder 5 is connected with an adjusting shaft arm 6. The top end of the adjusting shaft arm 6 is axially connected with an adjusting arc plate 7. The two ends of the steel box girder body 3 are respectively located on the top surface of the rotating base 403 and the top surface of the adjusting arc plate 7. The edge of the rail 2 is bolted to the top surface of the pier body 1. When the steel box girder body 3 is moved and adjusted, the steel box girder body 3 is hoisted on the top of the two sets of adjustment and positioning components 4 through external cranes and other structural beams, and the two ends are respectively placed on the top surface of one set of rotating bases 403 and the other set of adjusting arc plates 7 for positioning. After placement, the positioning clamping plate 406 is driven by the telescopic movement of the movable end of the double-axis cylinder 405 to move to the side of the steel box girder body 3 to clamp the side of the steel box girder body 3 to prevent shaking during movement. The moving wheels 402 of the two sets of adjustment and positioning components 4 move, which can drive the steel box girder body 3 to move position on the top surface of the load-bearing guide rail 2. The rotating base 403 is driven to rotate by the rotating motor 404, so as to realize the angular movement of the end of the clamped steel box girder body 3, which is convenient for splicing with the steel box girder body 3 at other positions.

[0028] In order to meet the adaptability of the adjustment of the steel box girder body 3, the inclination angle of the steel box girder body 3 can be adjusted by a group of adjusting arc plates 7 on the top surface of the adjusting positioning components 4. When the inclination of the steel box girder body 3 is adjusted, the adjusting positioning component 4 at one end remains unchanged, and the adjusting positioning component 4 of the adjusting arc plate 7 at the other end controls the inclination. The specific structure is that the movable end of the telescopic cylinder 5 is extended, and the adjusting arc plate 7 is driven to move upward by adjusting the shaft arm 6. Through the height adjustment of the end, the end of the steel box girder body 3 on the top of the adjusting arc plate 7 is driven to move upward, so that the two ends of the steel box girder body 3 have an inclination angle, thereby realizing the adjustment of the inclination angle.

[0029] In order to facilitate the accurate calculation of the inclination after adjustment, the laser positioning component 8 connected to the surface can meet the accurate calculation of the adjusted angle. The specific structure is that a laser positioning component 8 is provided between the two groups of adjustment positioning components 4, and the laser positioning component 8 includes a laser receiver 801 and a first laser emitter 802. A first laser emitter 802 is provided on the side of the rotating base 403 of one group of adjustment positioning components 4, and a second laser emitter 803 is embedded in the center position of the adjustment arc plate 7. The bottom surface of the adjustment arc plate 7 is bolted with a laser receiver 801. According to the trigonometric theorem, the straight-line distance A between the laser emitted by the first laser emitter 802 and the laser receiver 801 can be calculated, and the vertical straight-line distance between the laser emitted by the second laser emitter 803 and the laser receiver 801 is calculated as B. There is a trigonometric tangent formula, which can be used to calculate the degree corresponding to the angle, thereby obtaining the inclination angle.

[0030] Other limiting structures of the entire device are as follows: the vertical center line of the side of the first laser emitter 802 coincides with the vertical center line of the side of the rotating base 403, and the first laser emitter 802 is located on the side of the rotating base 403 near the top surface, the first laser emitter 802 and the second laser emitter 803 are both electrically connected to the laser receiver 801, the horizontal center line of the top surface of the first laser emitter 802 is collinear with the horizontal center line of the top surface of the second laser emitter 803, the vertical center line of the second laser emitter 803 coincides with the vertical center line of the laser receiver 801, and the first laser emitter, the second laser emitter 803 and the laser receiver 801 are kept in the same plane, which is convenient for distance calculation, thereby improving the calculation accuracy of the inclination, the bottom surface of the rotating base 403 is completely against the top surface of the load-bearing base 401, the vertical center line of the rotating motor 404 coincides with the vertical center line of the rotating unit, and the positioning clamping plate 406 is symmetrical along both sides of the top surface of the rotating base 403. Specific embodiment 2:

[0032] Reference Figure 1-5 When the whole device is in use, at least one set of displacement sensors is provided inside the laser receiver 801 for calculating the distance of laser emission. The laser receiver 801 is provided with elements for receiving the first laser emitter 802 and the second laser emitter 803 for receiving lasers. The calculation of the laser distance can be calculated by setting a displacement sensor, or by analyzing and calculating the laser emission time and the laser reception time. The distance calculation method between the first emitter 802 and the laser receiver 801 can be calculated by existing public technologies. When it is used specifically, the calculation method can be selected according to the actual usage scenario on the premise that the distance can be obtained. Specific embodiment three:

[0034] Reference Figure 1-5When the whole device is used to position the steel box girder body 3, the external connection control device is used for control, such as controlling the telescopic amount of the telescopic cylinder 5, controlling the telescopic amount of the dual-axis cylinder 405, controlling the rotation angle and rotation rate of the rotating motor 404, etc. The moving wheel 402 is an electric moving wheel in actual use and is controlled by an external control structure. The body control circuit can be selected according to the control method of the motor and the cylinder in the prior art.

[0035] The supporting force of the rotating base 403 and the surface of the adjusting arc plate 7 in the whole device can meet the demand for supporting the steel box girder body 3.

[0036] When the telescopic cylinder 5 drives the adjusting arc plate 7 to move and retract, the angle is controlled by adjusting the end of the shaft arm 6 to meet the requirement of the maximum contact area between the adjusting arc plate 7 and the steel box girder body 3 during telescopic adjustment, thereby maintaining the stability of the entire adjustment.

[0037] In summary:

[0038] 1. The top surface of the pier body 1 is connected to two sets of adjustment and positioning components 4 through the load-bearing guide rails 2 to carry out load-bearing clamping and positioning of the steel box girder body 3. The adjustment and positioning components 4 can control the position movement of the steel box girder body 3 through the movement of the moving wheels 402. At the same time, the rotating motor 404 drives the rotating base 403 to rotate. Under the limit of the positioning clamping plate 406, the angle of the end of the steel box girder body 3 can be adjusted, thereby meeting the adjustment and positioning of the steel box girder body 3 during the bridge construction process. The structure is simple and easy to adjust. It does not need to be moved by a crane, which is convenient for the construction and assembly of the steel box girder body 3.

[0039] 2. The top surface of the pier body 1 is connected to two groups of adjustment and positioning components 4 through a load-bearing guide rail 2 to support the steel box girder body 3, and the adjustment arc plate 7 is controlled to move up and down by a telescopic cylinder 5 on the top surface of a group of adjustment and positioning components 4 to lift the top of the steel box girder body 3 and adjust the angle of the steel box girder body 3. During the adjustment, the adjustment angle is calculated by the laser positioning component 8, which is convenient for accurate adjustment of the inclination and vertical calculation of the steel box girder body 3, thereby improving the adjustment accuracy and facilitating the positioning of the bridge construction.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A positioning device for steel box girder construction, comprising a steel box girder body (3) and a pier body (1) located at the bottom of the steel box girder, characterized in that: The top surface of the pier body (1) is provided with a load-bearing guide rail (2), and both ends of the surface of the load-bearing guide rail (2) are provided with adjustment and positioning components (4), a steel box girder body (3) is provided between adjacent adjustment and positioning components (4), a laser positioning component (8) is provided between two groups of the adjustment and positioning components (4), and the adjustment and positioning components (4) include a load-bearing base (401) and a rotating base (403), and a telescopic cylinder (5) is embedded inside the rotating base (403) of one group of the adjustment and positioning components (4), and the movable end of the telescopic cylinder (5) is connected to an adjustment shaft arm (6), and the top end of the adjustment shaft arm (6) is axially connected to an adjustment arc plate (7).

2. A positioning device for steel box girder construction according to claim 1, characterized in that: The bottom surface of the load-bearing base (401) is provided with a moving wheel (402), a rotating motor (404) is embedded inside the load-bearing base (401), and the output shaft of the rotating motor (404) is connected to the bottom surface of the rotating base (403), and double-axis cylinders (405) are embedded on both sides of the rotating motor (404), and the movable ends of the double-axis cylinders (405) are connected with positioning clamps (406).

3. A positioning device for steel box girder construction according to claim 1, characterized in that: The laser positioning component (8) comprises a laser receiver (801) and a first laser emitter (802); a first laser emitter (802) is provided on the side of a rotating base (403) of a group of the adjusting positioning components (4); a second laser emitter (803) is embedded in the center of the adjusting arc plate (7); and a laser receiver (801) is bolted to the bottom surface of the adjusting arc plate (7).

4. A positioning device for steel box girder construction according to claim 3, characterized in that: The vertical center line of the side of the first laser emitter (802) coincides with the vertical center line of the side of the rotating base (403), and the first laser emitter (802) is located on the side of the rotating base (403) close to the top surface, and the first laser emitter (802) and the second laser emitter (803) are both electrically connected to the laser receiver (801).

5. A positioning device for steel box girder construction according to claim 4, characterized in that: The horizontal center line of the top surface of the first laser emitter (802) is collinear with the horizontal center line of the top surface of the second laser emitter (803), and the vertical center line of the second laser emitter (803) coincides with the vertical center line of the laser receiver (801).

6. A positioning device for steel box girder construction according to claim 1, characterized in that: The two ends of the steel box girder body (3) are respectively located on the top surface of the rotating base (403) and the top surface of the adjusting arc plate (7), and the edge of the load-bearing guide rail (2) is bolted to the top surface of the pier body (1).

7. A positioning device for steel box girder construction according to claim 2, characterized in that: The bottom surface of the rotating base (403) is completely against the top surface of the load-bearing base (401), the vertical center line of the rotating motor (404) and the vertical center line of the rotating unit coincide with each other, and the positioning clamping plates (406) are symmetrical along both sides of the top surface of the rotating base (403).

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