Self-adjusting roller frame based on concentric and coaxial butt joint of steel pipe column and tool column

Abstract

This utility model relates to the technical field of steel pipe column and tool column docking equipment, and discloses a self-adjusting roller frame based on the concentric and coaxial docking of steel pipe columns and tool columns. It includes an active roller frame, a driven roller frame, a tool column, and a steel pipe column. During operation, the tool column and steel pipe column are respectively suspended on the driven roller frame and the active roller frame. The swingable roller assembly allows the driven roller frame and the active roller frame to quickly adapt to the tool column and steel pipe column. Adjusting the height of the active roller frame ensures that the tool column and steel pipe column are in a concentric and coaxial state, preventing them from flipping and rolling back and forth. Through the transmission mechanism and speed-regulating motor, the speed-regulating motor drives the rollers to rotate at a uniform speed, thereby causing the steel pipe column to rotate around its central axis. This ensures that the flange bolt holes of the steel pipe column and tool column are aligned, allowing for bolt fixing and rapid docking adjustment. This high positioning efficiency effectively shortens docking time and improves docking efficiency.

Description

Technical Field

[0001] This utility model patent relates to the technical field of steel pipe column and tool column docking equipment, specifically, to a self-adjusting roller frame based on the concentric and coaxial docking of steel pipe column and tool column. Background Technology

[0002] When underground structures are constructed using the reverse construction method, the foundation piles generally adopt the form of bottom cast-in-place piles + structural columns, with steel pipe structural piles being one of the common forms. As a permanent structure, steel pipe structural piles have very high requirements for positioning and verticality control. In the reverse construction method for foundation engineering, the verticality deviation of the steel pipe structural column cannot exceed 1 / 300, and some even require 1 / 500. To ensure that high precision requirements are met, a full-casing full-rotation drilling rig is usually used for positioning. Since the height of the full-casing full-rotation drilling rig is about 3.5m above the ground, and the top elevation of the steel pipe column is generally below the ground, in order to meet the positioning requirements of the drilling rig borehole, a tool column is used to connect the steel pipe structural column. The fixed tool column is used for auxiliary positioning. Usually, the tool column and the steel pipe column are prefabricated in the factory and transported to the site for splicing after acceptance. Therefore, in addition to meeting the accuracy requirements when positioning the steel pipe structural column, higher requirements are placed on the docking accuracy of the steel pipe column and the tool column.

[0003] When connecting steel pipe columns and tool columns in the reverse construction method on site, a positioning platform is often built with I-beams. This type of platform consists of multiple I-beam frames. During the connection, a crane is needed to repeatedly adjust the alignment of the bolt holes of the steel pipe column and the flange structure of the tool column. During the connection process, manual padding is required repeatedly to complete the connection. The overall connection process is time-consuming, labor-intensive, and has low construction efficiency, and there are certain safety risks. Utility Model Content

[0004] The purpose of this invention is to provide a self-adjusting roller frame based on the concentric and coaxial connection of steel pipe column and tool column, which aims to solve the problem of low connection efficiency of tool column and steel pipe column in the prior art.

[0005] This utility model is implemented as follows: a self-adjusting roller frame based on the concentric and coaxial connection of a steel pipe column and a tool column includes an active roller frame, a driven roller frame, a tool column, and a steel pipe column. The tool column and the steel pipe column are respectively placed on the driven roller frame and the active roller frame. Each of the active roller frame and the driven roller frame is provided with two mutually symmetrical roller groups. Two rollers are rotatably mounted on each roller group. A transmission mechanism is installed on each of the two roller groups on the active roller frame. A speed-regulating motor is installed on the transmission mechanism. A base body is provided at the bottom of both the active roller frame and the driven roller frame. Four movable wheels distributed in a matrix are installed at the bottom of the base body.

[0006] Preferably, the transmission mechanism is a worm gear reducer, and the speed-regulating motor is connected to at least one roller drive through the worm gear reducer.

[0007] Preferably, the roller consists of an inner iron core and an outer rubber, and the two rollers are symmetrically mounted on the same roller assembly.

[0008] Preferably, the roller assemblies on both the active roller frame and the driven roller frame can swing at a certain angle.

[0009] Preferably, the two roller sets on the active roller frame and the driven roller frame can accommodate steel pipe columns or tool columns with diameters between 600mm and 3800mm.

[0010] Preferably, the base body has a downward-opening transmission cavity, and a lifting mechanism is installed inside the transmission cavity. The output end of the lifting mechanism is connected to a bottom support plate.

[0011] Preferably, the lifting mechanism includes two sets of mutually symmetrical first and second transmission rods. The middle ends of adjacent first and second transmission rods are connected by a connecting shaft. One end of each of the two first transmission rods is rotatably mounted with the same transmission slider. A threaded rod is rotatably mounted in the transmission cavity. The transmission slider is threadedly connected to the threaded rod. The other ends of the two first transmission rods are rotatably mounted on the bottom support plate through a bottom connector.

[0012] Preferably, one end of each of the two second transmission rods is rotatably mounted on the top inner wall of the transmission cavity via a top connector, and the other end of each of the two second transmission rods is connected to the same slide rod. A fixing block is protruding from the top of the bottom support plate, and a guide groove is provided on the fixing block for the slide rod to slide.

[0013] Preferably, a servo motor is connected to one end of the threaded rod that passes through the transmission cavity and extends to the outside. The servo motor is mounted on the base body at the bottom of the active roller frame.

[0014] Preferably, both the active roller frame and the driven roller frame are provided with four dampers arranged in a matrix. A rubber block is provided on the top of the damper, and a buffer spring is sleeved on the damper. One end of the buffer spring is connected to the damper, and the other end abuts against the rubber block. The damper is located below the roller assembly.

[0015] Compared with existing technologies, the self-adjusting roller frame provided by this utility model, based on the concentric and coaxial docking of steel pipe columns and tool columns, allows the tool column and steel pipe column to be suspended and placed on the driven and driven roller frames respectively during operation. The swingable roller assembly enables the driven and driven roller frames to quickly adapt to the tool column and steel pipe column. Adjusting the height of the driven roller frame ensures that the tool column and steel pipe column are concentric and coaxial, preventing them from flipping and rolling back and forth. Through the transmission mechanism and speed-regulating motor, the speed-regulating motor drives the rollers to rotate at a uniform speed, thereby causing the steel pipe column to rotate around its central axis. This ensures that the flange bolt holes of the steel pipe column and tool column are aligned, allowing for bolt fixing and rapid docking adjustment. This high positioning efficiency effectively shortens docking time and improves docking efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the docking structure of the tool column, steel pipe column, active roller frame and driven roller frame of the self-adjusting roller frame based on the concentric and coaxial docking of the steel pipe column and the tool column provided by this utility model;

[0017] Figure 2 This is a structural diagram of the active roller frame and the driven roller frame of the self-adjusting roller frame based on the concentric and coaxial docking of the steel pipe column and the tool column provided by this utility model;

[0018] Figure 3 This is a cross-sectional structural schematic diagram of the lifting mechanism of the self-adjusting roller frame based on the concentric and coaxial docking of the steel pipe column and the tool column provided by this utility model.

[0019] Figure 4 This is a cross-sectional schematic diagram of the lifting mechanism of the self-adjusting roller frame based on the concentric and coaxial connection of the steel pipe column and the tool column provided by this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Active roller frame; 2. Driven roller frame; 3. Tool column; 4. Steel pipe column; 5. Base body; 6. Roller assembly; 7. Speed-regulating motor; 8. Buffer spring; 9. Damper; 10. Rubber block; 11. Bottom support plate; 12. Roller; 13. Inner iron core; 14. Moving wheel; 15. Servo motor; 16. Outer rubber; 17. Transmission cavity; 18. Threaded rod; 19. Transmission slider; 20. Bottom connector; 21. Fixing block; 22. Guide groove; 23. Slide rod; 24. First transmission rod; 25. Second transmission rod; 26. Top connector; 27. Worm gearbox. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] Reference Figure 1-4 The image shown is a preferred embodiment of the present invention.

[0026] The self-adjusting roller frame based on the concentric and coaxial connection of the steel pipe column 4 and the tool column 3 includes an active roller frame 1, a driven roller frame 2, a tool column 3 and a steel pipe column 4. The tool column 3 and the steel pipe column 4 are respectively placed on the driven roller frame 2 and the active roller frame 1. Each of the active roller frame 1 and the driven roller frame 2 is provided with two mutually symmetrical roller groups 6. Two rollers 12 are rotatably installed on the roller groups 6. The two roller groups 6 on the active roller frame 1 are each equipped with a transmission mechanism. A speed-regulating motor 7 is installed on the transmission mechanism. The bottom of the active roller frame 1 and the driven roller frame 2 is provided with a base body 5. Four moving wheels 14 distributed in a matrix are installed on the bottom of the base body 5.

[0027] With the provided active roller frame 1 and driven roller frame 2, the tool column 3 and steel pipe column 4 can be suspended and placed on the driven roller frame 2 and active roller frame 1 respectively during operation. The swingable roller group 6 allows the driven roller frame 2 and active roller frame 1 to quickly adapt to the tool column 3 and steel pipe column 4. By adjusting the height of the active roller frame 1, the tool column 3 and steel pipe column 4 are ensured to be in a concentric and coaxial state, avoiding back-and-forth rolling of the tool column 3 and steel pipe column 4. Through the setting of the transmission mechanism and the speed-regulating motor 7, the speed-regulating motor 7 drives the roller 12 to rotate at a uniform speed, thereby driving the steel pipe column 4 to rotate around its central axis, ensuring that the flange bolt holes of the steel pipe column 4 and the tool column 3 are aligned, so that the bolts can be fixed, and the docking adjustment can be completed quickly. The positioning efficiency is high, which can effectively shorten the docking time and improve the docking efficiency.

[0028] Specifically, in this embodiment, the transmission mechanism is a worm gear reducer, and the speed-regulating motor 7 is connected to at least one roller 12 through the worm gear reducer 27.

[0029] Specifically, in this embodiment, the roller 12 is composed of an inner iron core 13 and an outer rubber 16, and the two rollers 12 are symmetrically installed on the same roller group 6.

[0030] The outer rubber 16 ensures friction between the roller 12 and the steel pipe column 4, so that when the roller 12 rotates, it can drive the steel pipe column 4 to rotate, thereby aligning the bolt holes.

[0031] Specifically, in this embodiment, the roller assembly 6 on both the active roller frame 1 and the driven roller frame 2 can swing at a certain angle.

[0032] Specifically, in this embodiment, the two roller sets 6 on the active roller frame 1 and the driven roller frame 2 can accommodate steel pipe columns 4 or tool columns 3 with diameters between 600mm and 3800mm.

[0033] Specifically, in this embodiment, the base body 5 has a downward-opening transmission cavity 17, and a lifting mechanism is provided in the transmission cavity 17. The output end of the lifting mechanism is connected to the bottom support plate 11.

[0034] The lifting mechanism allows for easy adjustment of the overall height of the active roller frame 1 or the driven roller frame 2, ensuring that the tool column 3 and the steel pipe column 4 are concentric and coaxial. The movable wheels 14 facilitate the movement of the active roller frame 1 and the driven roller frame 2. Once at the designated position, the lifting mechanism allows the bottom support plate 11 to descend vertically and contact the ground, thus limiting the position of the active roller frame 1 or the driven roller frame 2 and ensuring its stability during use.

[0035] Specifically, in this embodiment, the lifting mechanism includes two sets of mutually symmetrical first transmission rods 24 and second transmission rods 25. The middle ends of adjacent first transmission rods 24 and second transmission rods 25 are connected by a connecting shaft. One end of each of the two first transmission rods 24 is rotatably mounted with the same transmission slider 19. A threaded rod 18 is rotatably mounted in the transmission cavity 17. The transmission slider 19 is threadedly connected to the threaded rod 18. The top of the transmission cavity 17 is provided with a limiting guide rail for the transmission slider 19 to slide. The other ends of the two first transmission rods 24 are rotatably mounted on the bottom support plate 11 through the bottom connector 20. One end of each of the two second transmission rods 25 is rotatably mounted on the top inner wall of the transmission cavity 17 through the top connector 26. The other ends of the two second transmission rods 25 are connected to the same slide rod 23. The top of the bottom support plate 11 is provided with a fixing block 21. The fixing block 21 is provided with a guide groove 22 for the slide rod 23 to slide. The threaded rod 18 passes through the transmission cavity 17 and extends to the outside, and is connected to a servo motor 15. The servo motor 15 is mounted on the base body 5 at the bottom of the active roller frame 1.

[0036] By setting up structures such as the first transmission rod 24 and the second transmission rod 25, the servo motor 15 drives the threaded rod 18 to rotate during the operation of the lifting mechanism. This allows the transmission slider 19 to move horizontally through the threaded advance relationship, thereby changing the angle between the two sets of first transmission rods 24 and second transmission rods 25. This causes the bottom support plate 11 to descend vertically, thus achieving stable and efficient height adjustment of the active roller frame 1 or the driven roller frame 2.

[0037] Specifically, in this embodiment, both the active roller frame 1 and the driven roller frame 2 are provided with four dampers 9 arranged in a matrix. A rubber block 10 is provided on the top of the damper 9. A buffer spring 8 is sleeved on the damper 9. One end of the buffer spring 8 is connected to the damper 9, and the other end abuts against the rubber block 10. The damper 9 is located below the roller assembly 6.

[0038] Through the cooperation of the damper 9, the buffer spring 8 and the rubber block 10, the roller assembly 6 can be supported and buffered when it is reset, preventing the roller assembly 6 from directly contacting the top surface of the roller frame and causing damage.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-adjusting roller stand based on the concentric and coaxial butt joint of a steel pipe column and a tool column, characterized in that, The system includes an active roller frame, a driven roller frame, a tool column, and a steel pipe column. The tool column and the steel pipe column are respectively placed on the driven roller frame and the active roller frame. Each of the active roller frame and the driven roller frame is provided with two mutually symmetrical roller groups. Two rollers are rotatably mounted on each roller group. A transmission mechanism is installed on each of the two roller groups on the active roller frame. A speed-regulating motor is installed on the transmission mechanism. A base body is provided at the bottom of both the active roller frame and the driven roller frame. Four moving wheels distributed in a matrix are installed at the bottom of the base body.

2. The self-adjusting roller stand based on the concentric and coaxial butt joint of the steel pipe column and the tool column according to claim 1, characterized in that, The transmission mechanism is a worm gear reducer, and the speed-regulating motor is connected to at least one roller drive through the worm gear reducer.

3. The self-adjusting roller stand based on the concentric and coaxial butt joint of the steel pipe column and the tool column according to claim 1, characterized in that, The roller consists of an inner iron core and an outer rubber, and the two rollers are symmetrically installed on the same roller assembly.

4. The self-adjusting roller stand based on the concentric and coaxial butt joint of the steel pipe column and the tool column according to claim 1, characterized in that, Both the active roller frame and the driven roller frame have rollers that can swing at a certain angle.

5. The self-adjusting roller stand based on the concentric and coaxial butt joint of the steel pipe column and the tool column according to claim 1, characterized in that, The two roller sets on the active roller frame and the driven roller frame can accommodate steel pipe columns or tool columns with diameters between 600mm and 3800mm.

6. The self-adjusting roller stand based on the concentric and coaxial butt joint of the steel pipe column and the tool column according to claim 1, characterized in that, The base body has a downward-opening transmission cavity, and a lifting mechanism is installed inside the transmission cavity. The output end of the lifting mechanism is connected to a bottom support plate.

7. The self-adjusting roller stand based on the concentric and coaxial butt joint of the steel pipe column and the tool column according to claim 6, characterized in that, The lifting mechanism includes two sets of mutually symmetrical first and second transmission rods. The middle ends of adjacent first and second transmission rods are connected by a connecting shaft. One end of each of the two first transmission rods is rotatably mounted with the same transmission slider. A threaded rod is rotatably mounted in the transmission cavity. The transmission slider is threadedly connected to the threaded rod. The other ends of the two first transmission rods are rotatably mounted on the bottom support plate through a bottom connector.

8. The self-adjusting roller stand based on the concentric and coaxial butt joint of the steel pipe column and the tool column according to claim 7, characterized in that, One end of each of the two second transmission rods is rotatably mounted on the top inner wall of the transmission cavity via a top connector. The other end of each of the two second transmission rods is connected to the same slide rod. A fixing block protrudes from the top of the bottom support plate, and a guide groove is provided on the fixing block for the slide rod to slide.

9. The self-adjusting roller stand based on the concentric and coaxial butt joint of the steel pipe column and the tool column according to claim 7, characterized in that, The threaded rod passes through the transmission cavity and extends to the outside, with a servo motor connected to one end. The servo motor is mounted on the base body at the bottom of the active roller frame.

10. The self-adjusting roller stand based on the concentric and coaxial butt joint of the steel pipe column and the tool column according to claim 1, characterized in that, Both the active roller frame and the driven roller frame are equipped with four dampers arranged in a matrix. A rubber block is provided on the top of the damper, and a buffer spring is sleeved on the damper. One end of the buffer spring is connected to the damper, and the other end abuts against the rubber block. The damper is located below the roller assembly.

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