Tubular pile steel cage tensioning structure

Abstract

The utility model relates to the technical field of tubular pile production, and discloses a tubular pile steel cage tensioning structure which comprises a rack, a lifting column, a cross beam fixed at the upper end of the lifting column and a tensioning device hinged to the lower end of the lifting column, springs are fixed at the two ends of the cross beam, and suspension parts are connected between the springs and the tensioning device. The rack is rotationally connected with an adjusting cylinder, and the rack is provided with a motor used for driving the adjusting cylinder to rotate. The tensioning device has the advantages that the motor drives the adjusting cylinder to rotate and drives the lifting column to ascend and descend, the lifting column drives the cross beam and the tensioning device to ascend and descend, the servo motor is selected as the motor, transmission is conducted between the motor and the adjusting cylinder through the synchronous belt, and the lifting adjusting precision of the lifting column and the tensioning device is high. And meanwhile, the spring and the suspension piece are used for controlling the posture of the tensioning device, and a worker can directly and manually adjust the posture of the tensioning device according to needs during operation, so that the tensioning device can better complete butt joint.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe pile production, in particular to a pipe pile steel cage tensioning structure. Background Art

[0002] During the production of prestressed pipe piles, tensioning equipment is required to apply precise prestress to the steel cage to ensure that the pipe piles have good crack resistance. The Chinese invention patent with the authorization announcement number CN110039651B discloses an automatic tensioning system for prestressed pipe pile molds based on hydraulic cylinders, including a pipe pile mold assembly, a tensioning device and a three-dimensional mobile platform, a pipe diameter detection device, and a displacement sensor device. The tensioning device includes a docking locking device, a tightening locking device, a jack hydraulic cylinder and a nut locking device. It drives the lifting trolley up and down through a cross-bracket, and then drives the lifting and lowering of the tensioning device to achieve docking with the pipe pile mold. Theoretically, the lifting form of the cross-bracket can drive the lifting trolley and the tensioning device up and down, but in actual application, the lifting control accuracy of the cross-bracket is insufficient. When the height of the pipe pile mold changes, the staff needs to repeatedly adjust the cross-bracket to complete the docking, which has low work efficiency and a cumbersome and complicated operation process. Utility Model Content

[0003] The utility model aims to provide a pipe pile steel cage tensioning structure, which has the effect of facilitating the lifting and lowering and adjusting of the tensioning device.

[0004] The above technical objectives of the present utility model are achieved through the following technical solutions: a pipe pile steel cage tensioning structure, comprising a frame, a lifting column, a crossbeam fixed to the upper end of the lifting column, and a tensioning device hinged to the lower end of the lifting column, springs are fixed at both ends of the crossbeam, a suspension is connected between the spring and the tensioning device, the frame is provided with a guide hole, the lifting column is provided with a guide section, the guide section passes through the guide hole, the guide hole is used to limit the rotation of the guide section, an adjusting cylinder is rotatably connected to the frame, the adjusting cylinder is threadedly connected to the lifting column, and the frame is provided with a motor for driving the adjusting cylinder to rotate.

[0005] By adopting the above technical solution, the motor drives the adjusting cylinder to rotate, the guide hole limits the rotation of the lifting column, the motor drives the adjusting cylinder to rotate, the adjusting cylinder drives the lifting column to rise and fall, and then drives the tensioning device and the beam to rise and fall. The spring and the suspension play a role in positioning the tensioning device. The staff can fine-tune the inclination state of the tensioning device according to work needs, so as to achieve the effect of convenient and rapid adjustment of the lifting and lowering of the tensioning device.

[0006] The present invention is further configured such that the cross-section of the guide hole and the cross-section of the guide section are both rectangular.

[0007] By adopting the above technical solution, the guide section on the lifting column passes through the guide hole, and the guide hole can limit the rotation of the lifting column.

[0008] The utility model is further configured as follows: the suspension member is a turnbuckle bolt, the upper end of the turnbuckle bolt is connected to the lower end of the spring, and the lower end of the turnbuckle bolt is hinged to the tensioning device.

[0009] By adopting the above technical solution, the staff can adjust the distance between the two ends of the basket bolt as needed to adjust the posture of the tensioning device.

[0010] The present invention is further configured as follows: a first synchronous wheel is fixed to the motor output shaft, a second synchronous wheel is fixed to the adjustment cylinder, and a synchronous belt is installed between the first synchronous wheel and the second synchronous wheel.

[0011] By adopting the above technical solution, the motor drives the adjusting cylinder to rotate through the synchronous belt, and the transmission accuracy is high.

[0012] The present invention is further configured as follows: the adjusting cylinder is mounted on the frame via a bearing.

[0013] By adopting the above technical solution, the adjusting cylinder can rotate relative to the frame.

[0014] The present invention is further configured as follows: the adjusting cylinder is sleeved on the lifting column, and an external thread is provided on the outside of the lifting column.

[0015] The utility model is further configured as follows: the spring is a tension spring.

[0016] The present invention is further configured as follows: the frame includes a workbench and a plurality of pillars fixed on the workbench.

[0017] The present invention is further configured as follows: the motor is mounted on the workbench, the motor is a servo motor, and the guide hole passes through the workbench.

[0018] By adopting the above technical solution, the workbench provides an installation position for the motor.

[0019] The present invention is further configured as follows: the crossbeam is located above the workbench, and the tensioning device is located below the workbench.

[0020] The beneficial effects of this utility model are as follows: the motor drives the adjustment cylinder to rotate, driving the lifting column to rise and fall, which in turn drives the crossbeam and tensioning device to rise and fall. The motor uses a servo motor, and the motor and adjustment cylinder are driven by a synchronous belt, which allows for high-precision adjustment of the lifting column and tensioning device. Furthermore, springs and suspension components are used to control the tensioning device's posture, allowing operators to manually adjust the tensioning device's posture as needed during operation, ensuring optimal docking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural diagram of the present utility model.

[0023] Figure 2 This is a schematic diagram of the lifting column structure of the present utility model.

[0024] In the figure, 1. frame; 11. workbench; 12. pillar; 13. bracket; 14. cover; 2. lifting column; 21. guide section; 22. threaded section; 3. adjusting cylinder; 4. motor; 5. spring; 6. suspension; 7. tensioning device. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions of the present invention in conjunction with specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0026] A pipe pile steel cage tension structure, such as Figure 1 、 Figure 2 As shown, the machine comprises a frame 1, which includes a workbench 11 and several supports 12 secured to the workbench 11. A guide hole is defined in the workbench 11, with a rectangular cross-section that vertically passes through the workbench 11. A lifting column 2 is positioned within the guide hole, comprising a guide section 21 and a threaded section 22. The guide section 21 extends through the guide hole, and both the cross-section of the guide section 21 and the guide hole are rectangular, preventing the lifting column 2 from rotating relative to the workbench 11.

[0027] The lower end of the lifting column 2 is hingedly connected to a tensioning device 7, which is located below the workbench 11. A crossbeam is fixed to the upper end of the lifting column 2, located above the workbench 11. Two springs 5 ​​are fixed to the crossbeam, each of which is connected to a suspension member 6 at its lower end. Suspension members 6 are turnbuckles, and their lower ends are hinged to the tensioning device 7. The specific type of spring 5 is selected as a tension spring 5.

[0028] A support 13 is mounted on the workbench 11, to which a cover 14 is fixed. An adjustment cylinder 3 is housed within the cover 14, with a bearing installed between the adjustment cylinder 3 and the cover 14, allowing the adjustment cylinder 3 to rotate relative to the cover 14. The adjustment cylinder 3 fits over a threaded section 22 of the lifting column 2. This section 22 has external threads, and the adjustment cylinder 3 and threaded section 22 are threadedly connected. A motor 4 is fixed to the workbench 11, with a first synchronous pulley fixed to the output shaft of the motor 4. A second synchronous pulley is fixed to the outer wall of the adjustment cylinder 3, with a timing belt installed between the first and second synchronous pulleys.

[0029] Working principle: Motor 4 drives the adjusting cylinder 3 to rotate, and the guide hole limits the rotation of the lifting column 2. Motor 4 drives the adjusting cylinder 3 to rotate, and the adjusting cylinder 3 drives the lifting column 2 to rise and fall, thereby driving the tensioning device 7 and the crossbeam to rise and fall. The spring 5 and the suspension 6 play a role in positioning the tensioning device 7. The staff can fine-tune the inclination state of the tensioning device 7 according to work needs, so as to achieve the effect of convenient and rapid adjustment of the lifting and lowering of the tensioning device 7.

Claims

1. A pipe pile steel cage tensioning structure, characterized by: The invention comprises a frame (1), a lifting column (2), a crossbeam fixed to the upper end of the lifting column (2), and a tensioning device (7) hinged to the lower end of the lifting column (2); springs (5) are fixed at both ends of the crossbeam; a suspension member (6) is connected between the spring (5) and the tensioning device (7); the frame (1) is provided with a guide hole; the lifting column (2) is provided with a guide section (21); the guide section (21) passes through the guide hole; the guide hole is used to limit the rotation of the guide section (21); an adjusting cylinder (3) is rotatably connected to the frame (1); the adjusting cylinder (3) is threadedly connected to the lifting column (2); and the frame (1) is provided with a motor (4) for driving the adjusting cylinder (3) to rotate.

2. The pipe pile steel cage tensioning structure according to claim 1, characterized in that: The cross-sections of the guide hole and the guide section (21) are both rectangular.

3. The pipe pile steel cage tensioning structure according to claim 1, characterized in that: The suspension member (6) is a turnbuckle bolt, the upper end of the turnbuckle bolt is connected to the lower end of the spring (5), and the lower end of the turnbuckle bolt is hinged to the tensioning device (7).

4. The pipe pile steel cage tensioning structure according to claim 3, characterized in that: The output shaft of the motor (4) is fixed with a synchronous wheel 1, the adjusting cylinder (3) is fixed with a synchronous wheel 2, and a synchronous belt is installed between the synchronous wheel 1 and the synchronous wheel 2.

5. The pipe pile steel cage tensioning structure according to claim 4, characterized in that: The regulating cylinder (3) is mounted on the frame (1) via a bearing.

6. The pipe pile steel cage tensioning structure according to claim 4, characterized in that: The adjusting cylinder (3) is sleeved on the lifting column (2), and the lifting column (2) is provided with an external thread on its exterior.

7. The pipe pile steel cage tensioning structure according to claim 1, characterized in that: The spring (5) is a tension spring (5).

8. The pipe pile steel cage tensioning structure according to claim 1, characterized in that: The frame (1) comprises a workbench (11) and a plurality of pillars (12) fixed on the workbench (11).

9. The pipe pile steel cage tensioning structure according to claim 8, characterized in that: The motor (4) is mounted on the workbench (11), the motor (4) is a servo motor (4), and the guide hole passes through the workbench (11).

10. The pipe pile steel cage tensioning structure according to claim 8, characterized in that: The crossbeam is located above the workbench (11), and the tensioning device (7) is located below the workbench (11).

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