A pile foundation steel casing mechanized automatic cutting equipment

Abstract

This utility model discloses a mechanized automatic cutting device for steel casings used in pile foundations. It includes a cutting mechanism located on the side of the steel casing. A circular track is provided above the steel casing, connected to it via a clamping mechanism. A movable seat slides along the circular track, and an mounting plate is fixed to the movable seat. The cutting mechanism includes a plasma cutting machine host located on top of the mounting plate. The plasma cutting machine host is connected via a pipeline to a cutting nozzle facing the side of the steel casing. An assembly frame is fitted onto the cutting nozzle. A camera and a distance sensor are respectively installed on both sides of the assembly frame. A lifting mechanism connected to the assembly frame is located below the mounting plate. This utility model, by setting up a circular track, movable seat, mounting plate, and cutting mechanism, eliminates the need for a moving basket, allowing workers to move and cut around the steel casing, reducing the difficulty and danger of the cutting operation.

Description

Technical Field

[0001] This utility model relates to the field of waterway engineering demolition technology, and in particular to a mechanized automatic cutting device for steel casing of pile foundation. Background Technology

[0002] To ensure the quality of the bored pile during pile foundation construction, the top surface of the steel casing is generally higher than the construction platform. After construction, the excess portion of the steel casing needs to be cut. Current technology often uses traditional methods to cut the steel casing, employing a suspended platform to lower workers below the construction platform and using oxy-acetylene welding to cut the casing above the specified elevation. However, in actual operation, due to the limited working space of the suspended platform, repeated up-and-down and horizontal movements are necessary, and the platform is prone to swaying during operation, easily leading to accidents such as overturning, falls, and drowning, significantly increasing the danger of the cutting operation and hindering practical application. We propose a mechanized automatic cutting device for pile foundation steel casings. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a mechanized automatic cutting device for steel casing of pile foundations.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] Design a mechanized automatic cutting device for steel casing of pile foundation, including a cutting mechanism set on the side of the steel casing, an annular track above the steel casing, the annular track being connected to the steel casing through a clamping mechanism, a movable seat sliding along the annular track being connected to the annular track, and an installation plate being fixed on the movable seat, the cutting mechanism including a plasma cutting machine host set on the top of the installation plate, the plasma cutting machine host being connected to a cutting nozzle facing the side of the steel casing through a pipeline, an assembly frame being fitted on the cutting nozzle, a camera and a distance sensor being installed on both sides of the assembly frame respectively, and a lifting mechanism connected to the assembly frame being provided below the installation plate.

[0006] In the above scheme, the clamping mechanism includes a mounting groove fixed to the bottom of the annular track, and a pair of clamping plates are respectively provided at both ends of the mounting groove, with adjacent clamping plates connected by bolts.

[0007] In the above scheme, drive wheels are installed at both ends of the movable seat via drive shafts, a servo motor is installed inside the movable seat, a worm gear is connected to the output end of the servo motor, and one end of the drive shaft passes through the inner cavity of the movable seat and is equipped with a worm wheel that meshes with the worm gear.

[0008] In the above scheme, the lifting mechanism includes a steel pipe extension frame that is movably mounted with the mounting plate. The bottom end of the steel pipe extension frame is equipped with a hydraulic cylinder whose stroke end is connected to the assembly frame. The mounting plate is provided with a groove for accommodating the pipeline.

[0009] In the above scheme, the top of the steel pipe extension frame is fixed with symmetrically arranged screws, the mounting plate is provided with a moving port that matches the screws, and the screws are locked to the top of the mounting plate by nuts.

[0010] In the above scheme, the camera faces the steel casing, and the ranging sensor is opposite to the bottom end of the steel pipe extension frame.

[0011] In the above scheme, the surface of the plasma cutting machine host is connected to an elastic bracket adapted to the pipeline, and the inner wall of the elastic bracket is equipped with ball bearings.

[0012] The advantages and beneficial effects of this utility model are as follows: By setting up a circular track, a movable seat, a mounting plate, and a cutting mechanism, and using a servo motor to provide power, the drive shaft drives the drive wheel, which then slides along the circular track. The mounting plate, fixed to the movable seat, is used to install the cutting mechanism, allowing it to perform cutting operations around the steel casing. Compared to existing technologies, this eliminates the need for a movable basket, reducing the difficulty and risk of manual cutting. Furthermore, by setting up a lifting mechanism using a steel pipe extension frame as a lifting base, and cooperating with a hydraulic cylinder to raise and lower the cutting nozzle, the height of the nozzle can be adjusted by changing the piston rod length, eliminating the need for a basket for manual cutting. This not only improves automation but also significantly reduces risk. Finally, by setting up a camera and a distance sensor, the cutting operation can be monitored in real time using the camera, and the distance sensor can detect the lifting distance of the cutting nozzle, thus accurately determining its height and ensuring cutting quality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural schematic diagram of a mechanized automatic cutting device for steel casing of pile foundation proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the installation plate of a mechanized automatic cutting device for steel casing of pile foundation proposed in this utility model;

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point B;

[0018] Figure 5 This is a schematic diagram of the internal structure of the moving base of a mechanized automatic cutting device for pile foundation steel casing proposed in this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the elastic clamping seat of the mechanized automatic cutting equipment for pile foundation steel casing proposed in this utility model;

[0020] Figure 7 This is a schematic diagram of the clamping mechanism of a mechanized automatic cutting device for steel casing of pile foundation proposed in this utility model.

[0021] In the diagram: 1. Steel casing; 2. Circular track; 3. Mounting groove; 4. Moving seat; 5. Drive shaft; 6. Drive wheel; 7. Worm gear; 8. Servo motor; 9. Worm; 10. Clamping plate; 11. Mounting plate; 12. Plasma cutting machine main unit; 13. Pipeline; 14. Cutting nozzle; 15. Assembly rack; 16. Hydraulic cylinder; 17. Camera; 18. Distance sensor; 19. Bolt; 20. Screw; 21. Moving port; 22. Nut; 23. Through groove; 24. Elastic bracket; 25. Ball bearing; 26. Steel pipe extension rack. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0023] Please see Figure 1-7 This utility model provides a technical solution: a mechanized automatic cutting device for pile foundation steel casing, including a cutting mechanism set on the side of the steel casing 1, and an annular track 2 provided above the steel casing 1, the annular track 2 being connected to the steel casing 1 through a clamping mechanism;

[0024] Furthermore, the clamping mechanism includes an installation groove 3 fixed to the bottom of the annular track 2. A pair of clamping plates 10 are respectively provided at both ends of the installation groove 3. The adjacent clamping plates 10 are connected by bolts 19, and the adjacent clamping plates 10 are tightly fitted to the inner wall and outer wall of the steel casing 1, respectively. The pre-tightening force generated by the bolts 19 clamps the steel casing 1. The clamping plates 10 are slidably connected to the inner wall of the installation groove 3. The thickness of the steel casing 1 can be adapted by adjusting the distance between the adjacent clamping plates 10.

[0025] Specifically, hydraulic clamps can also be used as the clamping mechanism.

[0026] A movable seat 4 that slides along the circular track 2 is connected to the track 2;

[0027] Furthermore, drive wheels 6 are mounted on both ends of the movable seat 4 via drive shafts 5, a servo motor 8 is installed inside the movable seat 4, a worm gear 9 is coaxially connected to the output end of the servo motor 8, the other end of the worm gear 9 is rotatably connected to the inner wall of the movable seat 4, and one end of the drive shaft 5 passes through the inner cavity of the movable seat 4 and is equipped with a worm wheel 7 that meshes with the worm gear 9.

[0028] A mounting plate 11 is fixed on the movable base 4. The cutting mechanism includes a plasma cutting machine host 12 set on the top of the mounting plate 11. The plasma cutting machine host 12 is connected to a cutting nozzle 14 facing the side of the steel casing 1 through a pipeline 13. The pipeline 13 is connected to the gas-electric integrated interface of the plasma cutting machine host 12.

[0029] Specifically, by setting up a circular track 2, a movable seat 4, a mounting plate 11, and a cutting mechanism, and using a servo motor 8 to provide power, the drive shaft 5 drives the drive wheel 6, which in turn slides along the circular track 2. The mounting plate 11, which is fixed to the movable seat 4, is used to install the cutting mechanism, which then performs cutting operations around the steel casing 1. Compared with existing technologies, there is no need to move the worker around the steel casing 1 for cutting using a movable basket, which reduces the difficulty of the cutting operation and also reduces the danger.

[0030] An assembly frame 15 is elastically fitted on the cutting nozzle 14. A camera 17 and a distance sensor 18 are respectively installed on both sides of the assembly frame 15. Both the distance sensor 18 and the camera 17 are provided with transparent protective covers. The protective covers have working holes and slots to prevent the debris generated during cutting from splashing onto the distance sensor 18 and the camera 17.

[0031] Specifically, by setting up a camera 17 and a distance sensor 18, the cutting operation can be monitored in real time using the camera 17, and the lifting distance of the cutting nozzle 14 can be detected using the distance sensor 18, thereby accurately obtaining the height of the cutting nozzle 14 and ensuring the cutting quality.

[0032] A lifting mechanism connected to the assembly frame 15 is provided below the mounting plate 11;

[0033] Furthermore, the camera 17 is facing the steel casing 1, and the ranging sensor 18 is opposite to the bottom of the steel pipe extension frame 26;

[0034] Furthermore, the lifting mechanism includes a steel pipe extension frame 26 that is movably mounted on the mounting plate 11. The bottom end of the steel pipe extension frame 26 is equipped with a hydraulic cylinder 16 whose stroke end is connected to the assembly frame 15. The mounting plate 11 is provided with a through groove 23 for accommodating the pipeline 13.

[0035] Furthermore, the top of the steel pipe extension frame 26 is fixed with symmetrically arranged screws 20, and the mounting plate 11 is provided with a moving port 21 that matches the screws 20. The diameter of the screws 20 is the same as the width of the moving port 21. The screws 20 are locked to the top of the mounting plate 11 by nuts 22. By moving the steel pipe extension frame 26 along the moving port 21, the distance between the output end of the cutting nozzle 14 and the steel casing 1 can be indirectly adjusted.

[0036] Specifically, by setting up a lifting mechanism, using the steel pipe extension frame 26 as a lifting base, and cooperating with the hydraulic cylinder 16, the cutting nozzle 14 is raised and lowered. Compared with the existing technology, the height of the cutting nozzle 14 can be adjusted by adjusting the length of the piston rod, eliminating the need for manual cutting operations using a suspended basket. This not only improves the degree of automation but also significantly reduces the risk.

[0037] Furthermore, the surface of the plasma cutting machine host 12 is connected to an elastic bracket 24 adapted to the pipeline 13. The elastic bracket 24 is semi-circular, and the inner wall of the elastic bracket 24 is equipped with balls 25 that abut against the surface of the pipeline 13 through a ball bearing base.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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 mechanized automatic cutting device for steel casing of pile foundation, comprising a cutting mechanism disposed on the side of the steel casing (1), characterized in that, A ring track (2) is provided above the steel casing (1). The ring track (2) is connected to the steel casing (1) through a clamping mechanism. A movable seat (4) that slides along the ring track (2) is connected to the ring track (2). An installation plate (11) is fixed on the movable seat (4). The cutting mechanism includes a plasma cutting machine host (12) set on the top of the installation plate (11). The plasma cutting machine host (12) is connected to a cutting nozzle (14) facing the side of the steel casing (1) through a pipeline (13). An assembly frame (15) is fitted on the cutting nozzle (14). A camera (17) and a distance sensor (18) are respectively installed on both sides of the assembly frame (15). A lifting mechanism connected to the assembly frame (15) is provided below the installation plate (11).

2. The mechanized automatic cutting equipment for steel casing of pile foundations according to claim 1, characterized in that, The clamping mechanism includes a mounting groove (3) fixed to the bottom of the annular track (2), and a pair of clamping plates (10) are respectively provided at both ends of the mounting groove (3), and the adjacent clamping plates (10) are connected by bolts (19).

3. The mechanized automatic cutting equipment for pile foundation steel casing according to claim 1, characterized in that, The movable seat (4) has drive wheels (6) that match the circular track (2) installed at both ends via drive shafts (5). A servo motor (8) is installed inside the movable seat (4). The output end of the servo motor (8) is connected to a worm gear (9). One end of the drive shaft (5) passes through the inner cavity of the movable seat (4) and is fitted with a worm wheel (7) that meshes with the worm gear (9).

4. The mechanized automatic cutting equipment for steel casing of pile foundations according to claim 1, characterized in that, The lifting mechanism includes a steel pipe extension frame (26) movably mounted on the mounting plate (11). The bottom end of the steel pipe extension frame (26) is equipped with a hydraulic cylinder (16) whose stroke end is connected to the assembly frame (15). The mounting plate (11) has a through groove (23) for accommodating the pipeline (13).

5. The mechanized automatic cutting equipment for steel casing of pile foundations according to claim 4, characterized in that, The top of the steel pipe extension frame (26) is fixed with symmetrically arranged screws (20), and the mounting plate (11) is provided with a moving port (21) that matches the screws (20). The screws (20) are locked to the top of the mounting plate (11) by nuts (22).

6. The mechanized automatic cutting equipment for pile foundation steel casing according to claim 4, characterized in that, The camera (17) faces the steel casing (1), and the ranging sensor (18) is opposite to the bottom of the steel pipe extension frame (26).

7. The mechanized automatic cutting equipment for steel casing of pile foundations according to claim 1, characterized in that, The surface of the plasma cutting machine host (12) is connected to an elastic bracket (24) adapted to the pipeline (13), and the inner wall of the elastic bracket (24) is equipped with ball bearings (25).

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