Angle control device and method for steel internal support steel column

Abstract

This invention discloses an angle control device and method for steel columns with internal support. The device includes a fixed ring, a rotating ring coaxially and rotatably mounted within the fixed ring, a drive assembly mounted on the fixed ring for driving the rotating ring to rotate, and a clamping assembly mounted within the rotating ring. The drive assembly includes a steering motor fixedly mounted on the fixed ring, a motor gear mounted on the rotating shaft of the steering motor, and a ring gear rack fixedly mounted outside the rotating ring, with the motor gear meshing with the ring gear rack. Four sets of clamping assemblies are arranged in a cross shape along the circumference of the rotating ring. Each set of clamping assemblies includes a pair of hydraulic rods fixedly mounted on the rotating ring, a connecting rod connected to the telescopic end of the hydraulic rods, and a roller mounted on the connecting rod. This application can achieve angle control of the steel column, reduce the horizontal angle error during column construction, and improve the accuracy of the steel column.

Description

Technical Field

[0001] This invention relates to the technical field of steel internal support installation, and in particular to a steel internal support steel column angle control device and method. Background Technology

[0002] With the acceleration of urbanization in my country, the scale and depth of underground space development are constantly increasing, and deep foundation pit engineering is developing towards "deep, large, compact, and close proximity." How to effectively control foundation pit deformation and ensure the safety of surrounding buildings, structures, and pipelines during deep foundation pit construction under complex environmental conditions has become a core issue in geotechnical engineering. The internal support system of the foundation pit, as a key measure to control the displacement of the retaining structure, directly affects the safety and success of the entire project through its selection and construction quality.

[0003] Traditional foundation pit internal supports mostly use reinforced concrete structures, which, while possessing advantages such as high rigidity and good overall integrity, suffer from drawbacks such as large on-site pouring work, long curing periods, significant construction waste generated during support dismantling, and the inability to recycle, contradicting the concept of green construction. To overcome these shortcomings, prestressed steel composite support technology has emerged. This technology uses H-shaped steel columns connected with steel internal supports to form a support system. Its core advantage lies in achieving standardized production and rapid on-site assembly of the supports, greatly shortening the construction period. Simultaneously, the support components are recyclable and reusable, significantly reducing project costs and resource waste, effectively solving the problems of slow construction speed and environmental unfriendliness associated with traditional supports.

[0004] The installation accuracy of the prestressed steel composite support system is a prerequisite for ensuring its designed functionality. In this system, the vertical support system typically uses H-beam columns, which provide stable vertical supports for the horizontal supports, bear the self-weight of the supports and potential construction loads, and ensure the overall stability of the support system. The construction quality of the H-beam columns, especially the control of their verticality and horizontal angles, is crucial for the smooth and accurate installation of the subsequent horizontal supports.

[0005] Currently, in practical engineering applications, steel columns are typically constructed using robotic arms. However, robotic arm construction relies entirely on manual control of the column's angle by operators, leading to significant construction errors. Excessive horizontal angular deviation in H-shaped steel columns can have a series of negative impacts on the entire internal support system. First, angular deviation can cause rotation of the support or connecting lugs at the top of the column, preventing proper alignment of the horizontal steel supports installed on them. Second, design calculations typically assume the column is an ideal axially loaded member; excessive initial torsion or tilt can alter the column's actual stress pattern, resulting in eccentric compression, reducing its load-bearing capacity and stability, and posing safety hazards during foundation pit construction. Furthermore, if the column deviation exceeds the allowable range, it may encroach upon the design limits of the basement's main structure, affecting subsequent structural construction and causing rework and economic losses. Summary of the Invention

[0006] This invention provides a device and method for controlling the angle of steel internal support columns, which can realize the angle control of steel columns, reduce the horizontal angle error of column construction, and improve the accuracy of steel columns.

[0007] The technical problem to be solved is the deviation in verticality and horizontal angle of the supporting steel columns installed in the foundation pit.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention relates to an angle control device for steel internal support steel column, comprising a fixed ring, a rotating ring coaxially and rotatably mounted within the fixed ring, a drive assembly mounted on the fixed ring for driving the rotating ring to rotate, and a clamping assembly mounted within the rotating ring. The drive assembly includes a steering motor fixedly mounted on a fixed ring, a motor gear mounted on the rotating shaft of the steering motor, and an annular gear rack fixedly mounted outside the rotating ring, wherein the motor gear meshes with the annular gear rack; The clamping components are arranged in four groups, distributed in a cross shape along the circumference of the rotating ring. Each clamping component includes a pair of hydraulic rods fixedly installed on the rotating ring, a connecting rod connected to the telescopic end of the hydraulic rods, and a roller installed on the connecting rod.

[0009] In the steel internal support steel column angle control device of the present invention, the bottom end of the fixed ring is provided with a connecting groove along its circumferential direction, and the lower end of the rotating ring is inserted into the connecting groove.

[0010] The present invention provides an angle control device for steel internal support steel column, wherein the connecting groove is provided with a retainer and a ball bearing mounted on the retainer, and the rotating ring is placed on the ball bearing.

[0011] In the steel internal support steel column angle control device of the present invention, the ring gear rack is arranged in two sets at intervals along the height direction of the rotating ring, and two motor gears are correspondingly installed on the rotating shaft of the steering motor.

[0012] In the steel internal support steel column angle control device of the present invention, the steering motor is symmetrically arranged in two sets along the axis of the fixed ring.

[0013] The present invention provides a steel internal support steel column angle control device, wherein the clamping assembly is provided in two sets at intervals along the height direction of the rotating ring.

[0014] In the steel internal support steel column angle control device of the present invention, a reinforcing diagonal brace is further provided between the rotating ring and the hydraulic rod.

[0015] In the steel internal support steel column angle control device of the present invention, a cover plate is further installed on the upper end of the fixed ring and the rotating ring.

[0016] In the steel internal support steel column angle control device of the present invention, a resistance steel plate is installed on the fixed ring, and the resistance steel plate is provided with lifting lugs.

[0017] The present invention discloses a method for using a steel column angle control device, comprising the following steps: S1. Install the angle control device on the pile location; S2. The steel column is inserted into the rotating ring and passes through the clamping assembly. The hydraulic rod extends and tightens the steel column. S3. The steering motor drives the rotating ring to rotate, and the rotating ring drives the steel column to rotate through the clamping assembly, adjusting the horizontal angle of the steel column to the design position, and then the steering motor stops rotating. S4. Under the action of the clamping components, insert the steel column into the ground.

[0018] Compared with the prior art, the present invention has the following advantages: 1. Use the device to adjust and fix the measured horizontal angle of the steel column to ensure that the angle error of the steel column is controllable during the construction process, reduce the horizontal angle error of the column, ensure that the support force meets the design requirements, and avoid affecting the subsequent structural construction; 2. This device can also ensure the verticality of the steel column installation.

[0019] The invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a top view of the angle control device for the internal support steel column of the steel profile; Figure 2 yes Figure 1 Sectional view of AA in the middle; Figure 3 This is a partial cross-sectional view of the angle control device for the internal support steel column of the steel profile.

[0021] Figure label: 1. Fixed ring; 2. Resistance steel plate; 3. Connecting slot; 4. Steering motor; 5. Rotating ring; 6. Hydraulic rod; 7. Motor gear; 8. Roller; 9. Ball bearing; 10. Ring gear rack; 11. Lifting lug; 12. Cover plate; 13. Reinforcing diagonal brace. Detailed Implementation

[0022] like Figures 1-3As shown, this invention discloses an angle control device and method for a steel column with internal support. The angle control device includes a fixed ring 1, a rotating ring 5 coaxially and rotatably installed within the fixed ring 1, a drive assembly installed on the fixed ring 1 for driving the rotating ring 5 to rotate, and a clamping assembly installed within the rotating ring 5. In use, the steel column is clamped by the clamping assembly, and the rotating ring 5 is driven to rotate by the drive assembly, thereby controlling the horizontal angle of the steel column to rotate to the designed position. In this application, the steel column is an H-beam, and the clamping assembly clamps the upper and lower flanges and web of the H-beam.

[0023] A connecting groove 3 is welded and fixed to the lower end of the fixed ring 1 along its circumference on its inner side. A retainer is provided in the connecting groove 3, and a ball bearing 9 is provided on the retainer. The lower end of the rotating ring 5 is inserted into the connecting groove 3 and supported on the ball bearing 9. The retainer is used to control the spacing of the ball bearing 9. The ball bearing 9 can reduce the friction of the rotating ring 5 and facilitate the rotation of the rotating ring 5.

[0024] The drive assembly includes a steering motor 4, a motor gear 7, and a ring gear rack 10. The steering motor 4 is located between the fixed ring 1 and the rotating ring 5 and is fixedly installed on the upper end of the fixed ring 1. The motor gear 7 is fixedly installed on the rotating shaft of the steering motor 4. The ring gear rack 10 is fixedly installed on the outer wall of the rotating ring 5 and meshes with the motor gear 7. The steering motor 4 drives the ring gear rack 10 to rotate, thereby controlling the rotation of the rotating ring 5.

[0025] Furthermore, the rotating shaft of the steering motor 4 extends downward and is rotatably connected to the lower end of the fixed ring 1. Two sets of motor gears 7 are provided, located at the upper and lower parts of the rotating shaft respectively. Two sets of ring gear racks 10 are also provided corresponding to the motor gears 7 to increase the stability of rotation.

[0026] In addition, two sets of steering motors 4 are symmetrically arranged along the central axis of the fixed ring 1. The two sets of steering motors 4 drive the rotating ring 5 to rotate synchronously. By setting two sets of steering motors 4, the force on the rotating ring 5 can be symmetrical, which further improves the stability of the device.

[0027] Two sets of clamping assemblies are arranged vertically along the height of the rotating ring 5. Preferably, the installation position of the clamping assemblies is the same as the installation position of the ring gear rack 10. Each set has four clamping assemblies, which are distributed in a cross shape along the circumference of the rotating ring 5. Each clamping assembly includes a pair of hydraulic rods 6 fixedly installed on the rotating ring 5, a connecting rod connected to the telescopic end of the hydraulic rods 6, and a pair of rollers 8 rotatably installed on the connecting rod. The rollers 8 are spaced apart. Each set of clamping assemblies clamps and fixes the steel column from four directions, which facilitates the horizontal angle adjustment of the steel column. At the same time, the setting of the rollers 8 and the two sets of clamping assemblies ensures the verticality of the steel column when it is inserted. This not only makes it easy to adjust the horizontal installation angle of the steel column, but also ensures the verticality of the steel column installation.

[0028] Furthermore, a reinforcing brace 13 is connected between the rotating ring 5 and the hydraulic rod 6 to improve the structural strength and stability of the clamping assembly.

[0029] A cover plate 12 is installed at the upper end of the fixed ring 1 and the rotating ring 5 to close the space between the fixed ring 1 and the rotating ring 5. The cover plate 12 is used to connect the upper ends of the fixed ring 1 and the rotating ring 5 and close the gap between them.

[0030] The fixed ring 1 is provided with resistance steel plates 2 arranged in a cross shape on the outside of the fixed ring 1. The resistance steel plates 2 are perpendicular to the plate surface of the fixed ring 1. The upper end of the resistance steel plates 2 is welded with lifting lugs 11 for hoisting angle control devices.

[0031] The installation method is as follows: S1: During the construction of the steel column, the angle control device is embedded in the pile position.

[0032] S2: The steel column to be installed is inserted into the rotating ring 5 and passes through the clamping assembly. The hydraulic rod 6 is extended and tightened against the steel column.

[0033] S3: Control the steering motor 4 to drive the rotating ring 5 to rotate. The rotating ring 5 drives the steel column to rotate through the clamping assembly, adjusting the horizontal angle of the steel column to the design position, and the steering motor 4 stops rotating.

[0034] S4: While the clamping component is holding the steel column, the robotic arm inserts it downwards into the steel column. During the process, the device of this application ensures that the horizontal angle and verticality of the steel column remain unchanged.

[0035] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A steel internal support steel column angle control device, characterized in that, It includes a fixed ring (1), a rotating ring (5) coaxially and rotatably mounted in the fixed ring (1), a drive assembly mounted on the fixed ring (1) for driving the rotating ring (5) to rotate, and a clamping assembly mounted in the rotating ring (5); The drive assembly includes a steering motor (4) fixedly mounted on a fixed ring (1), a motor gear (7) mounted on the rotating shaft of the steering motor (4), and a ring gear rack (10) fixedly mounted outside the rotating ring (5). The motor gear (7) meshes with the ring gear rack (10). The clamping components are arranged in four groups, distributed in a cross shape along the circumference of the rotating ring (5). Each clamping component includes a pair of hydraulic rods (6) fixedly installed on the rotating ring (5), a connecting rod connected to the telescopic end of the hydraulic rods (6), and a roller (8) installed on the connecting rod.

2. The angle control device for the internal support steel column of the steel profile according to claim 1, characterized in that, The bottom end of the fixed ring (1) is provided with a connecting groove (3) along its circumferential direction, and the lower end of the rotating ring (5) is inserted into the connecting groove (3).

3. The angle control device for the internal support steel column of the steel profile according to claim 2, characterized in that, The connecting slot (3) is provided with a retainer and a ball (9) mounted on the retainer, and the rotating ring (5) is placed on the ball (9).

4. The angle control device for the internal support steel column of the steel profile according to claim 1, characterized in that, The ring gear rack (10) is arranged in two sets at intervals along the height direction of the rotating ring (5), and two motor gears (7) are installed on the rotating shaft of the steering motor (4).

5. The angle control device for the internal support steel column of the steel profile according to claim 1, characterized in that, Two sets of steering motors (4) are symmetrically arranged along the axis of the fixed ring (1).

6. The angle control device for the internal support steel column of the steel profile according to claim 1, characterized in that, The clamping components are arranged in two sets at intervals along the height direction of the rotating ring (5).

7. The angle control device for the internal support steel column of the steel profile according to claim 1, characterized in that, A reinforcing diagonal brace (13) connects the rotating ring (5) to the hydraulic rod (6).

8. The angle control device for the internal support steel column of the steel profile according to claim 1, characterized in that, The fixed ring (1) and the rotating ring (5) are fitted with cover plates (12).

9. The angle control device for the internal support steel column of the steel profile according to claim 1, characterized in that, A resistance steel plate (2) is installed on the fixed ring (1), and a lifting lug (11) is provided on the resistance steel plate (2).

10. A method for controlling the angle of a steel column with internal steel support as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. Install the angle control device on the pile location; S2. The steel column is inserted into the rotating ring (5) and passes through the clamping assembly. The hydraulic rod (6) extends out and presses against the steel column. S3. The steering motor (4) drives the rotating ring (5) to rotate. The rotating ring (5) drives the steel column to rotate through the clamping assembly, adjusting the horizontal angle of the steel column to the design position, and the steering motor (4) stops rotating. S4. Under the action of the clamping components, insert the steel column into the ground.

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