SMW method pile pulling device

Abstract

The utility model belongs to SMW method pile pulling technology field especially relates to a kind of SMW method pile pulling device, including H-shaped steel, further include: roof, the bottom of roof is equipped with two sliding slots, the bottom of roof is equipped with two moving plates, the top of moving plate is fixedly installed with two sliding blocks, sliding block extends to the corresponding sliding slot inside;Driving assembly, driving assembly is located in roof, and is used to drive two sliding blocks mutually close or mutually far away;Two grooves, two grooves are respectively equipped in the bottom of two moving plates, second two-way threaded rod is rotatably installed in groove, two lifting plates are slidably installed in groove and on second two-way threaded rod, the overall device in the utility model when using, ensure that the distance between the two lifting plates in moving plate can be adjusted, the distance between two moving plates can be adjusted simultaneously, so that the H-shaped steel of different size can be clamped and fixed, it is more convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of SMW method pile extraction technology, and particularly relates to an SMW method pile extraction device. Background Technology

[0002] The SMW method utilizes a specialized multi-shaft mixer to cut and mix the soil at the designed depth on-site, while simultaneously injecting cement grout into the soil from the drill bit tip, allowing the cement grout to fully mix with the in-situ soil to form a cement-soil pile.

[0003] For example, Chinese patent CN222083549U discloses a pile extraction device for the SMW method, including a base plate with four sets of clamping assemblies. Each set of clamping assemblies includes two clamping blocks slidably connected to a first groove in the base plate, with a transmission rod fixedly connected to one end of each clamping block. The device also includes a top plate with multiple lifting plates corresponding to the clamping assemblies fixedly connected to it. Each lifting plate is slidably connected to a second groove in the base plate, and each lifting plate has two transmission grooves. The transmission rod passes through a first groove in the base plate and extends into a transmission groove, slidably connecting with it. The first groove communicates with the first opening, and the first opening communicates with the second groove. Lifting the top plate causes the two clamping blocks of each clamping assembly to press against an H-beam, moving the H-beam upwards. This invention increases the maximum static friction limit between the clamping blocks and the wing plates, thus preventing slippage.

[0004] The aforementioned patent has the following problems:

[0005] This patent has some drawbacks in its use, such as the fact that the device can only fix a single type of H-beam. H-beams come in many sizes, and the required size varies depending on the application scenario. This means the device cannot clamp and fix smaller H-beams, making it inconvenient to use. Therefore, we propose an SMW (Self-Modified Welding) pile extraction device. Utility Model Content

[0006] The purpose of this invention is to provide a pile extraction device for the SMW method to solve the problems mentioned in the background art.

[0007] In view of this, the present invention provides a pile extraction device for the SMW method, comprising H-beams, and further comprising:

[0008] The top plate has two grooves at its bottom and two movable plates at its bottom. Two sliders are fixedly installed on the top of the movable plates and extend into the corresponding grooves.

[0009] A drive assembly, located within the top plate, is used to drive two sliders to move closer or further apart.

[0010] Two grooves are respectively formed at the bottom of two movable plates. A second bidirectional threaded rod is rotatably installed in the groove. Two lifting plates are slidably installed in the groove and on the second bidirectional threaded rod. One end of the second bidirectional threaded rod passes through one side of the groove and extends to the outside.

[0011] Two sets of clamping assemblies are located below the two moving plates, and both are used to clamp the H-beams.

[0012] In this technical solution, during use, the operator can place the top plate onto the H-beam, with the two movable plates positioned on either side of the H-beam. Then, using the two sets of clamping components, the two sets of clamping components clamp the four sides of the H-beam. Once all four sides of the H-beam are clamped, the hooks on the crane can be fixed to the two lifting rings on the top plate. Then, the two lifting rings can be pulled upwards, causing the H-beam to be lifted.

[0013] When the H-beam is small, the operator can manually turn the handle on the second double-threaded rod to rotate it. Under the action of the threads, the second double-threaded rod will move the corresponding two lifting plates closer together in the groove. This process can adjust the distance between the two lifting plates. Subsequently, through the set drive component, the drive component will move two sliders closer together. These two sliders will then move two moving plates closer together, and the two moving plates will move the other two sliders closer together, thereby adjusting the distance between the two moving plates. Through the above operation, it is possible to clamp and fix H-beams of different sizes, resulting in better performance.

[0014] In the above technical solution, the driving component further includes:

[0015] A first bidirectional threaded rod is rotatably installed in one of the slides, with one end of the first bidirectional threaded rod passing through two of the slides. A round rod is fixedly installed in the other slide, with one end of the round rod passing through the other two slides. A motor is fixedly installed on one side of the top plate, and the output end of the motor extends through one side of the top plate into one of the slides and is coaxially connected to the first bidirectional threaded rod.

[0016] In this technical solution, when the motor is started, the output shaft of the motor will drive the first bidirectional threaded rod to rotate. Under the action of the thread, the first bidirectional threaded rod will drive two sliders to move closer to each other. The two sliders will then drive two moving plates to move closer to each other. The two moving plates will then drive the other two sliders to slide on the round rod and move closer to each other, thereby adjusting the distance between the two moving plates.

[0017] In the above technical solution, the output shaft of the motor is rotatably connected to the top plate, and two of the sliders are threadedly connected to the first bidirectional threaded rod, which has two sections of threads with opposite directions of rotation. The other two sliders are slidably connected to the round rod.

[0018] In this technical solution, the output shaft of the motor can rotate normally. Under the action of the thread, when the first bidirectional threaded rod rotates, it will drive two of the sliders to move closer or further apart, ensuring that the other two sliders can slide on the round rod.

[0019] In the above technical solution, the clamping component further includes:

[0020] A connecting plate is located below a movable plate. Two hydraulic cylinders are fixedly installed at the bottom of the movable plate, and the output ends of the two hydraulic cylinders are fixed to the top of the connecting plate. A second limiting groove, a through groove, and a first limiting groove are provided in the connecting plate. The lower ends of the two lifting plates in the movable plate extend into the through groove. Two transmission grooves are provided in the lifting plates. A transmission rod is slidably installed in the transmission groove. A clamping block is fixedly installed at one end of the transmission rod in the first limiting groove, and a limiting block is fixedly installed at the other end of the transmission rod in the second limiting groove.

[0021] In this technical solution, four hydraulic cylinders are activated, and the output shafts of the four hydraulic cylinders will extend and drive the two connecting plates to move downwards respectively. At this time, the transmission rods will move downwards in the corresponding transmission grooves, and the two transmission rods in the lifting plate will move closer to each other. The two clamping blocks fixed to the two transmission rods will also move closer to each other in the first limiting groove, and the two limiting blocks fixed to the two transmission rods will move closer to each other in the second limiting groove, so that the corresponding two clamping blocks can clamp one side of the H-beam.

[0022] In the above technical solution, the clamping block is slidably connected to the first limiting groove, the limiting block is slidably connected to the second limiting groove, the lifting plate is slidably connected to the through groove, the clamping block is in close contact with the H-beam, the transmission groove is inclined, and the two transmission grooves on the lifting plate are symmetrically arranged.

[0023] In this technical solution, it is ensured that the clamping block can slide in the first limiting groove, the limiting block can slide in the second limiting groove, the lifting plate can slide in the through groove, several clamping blocks can clamp and fix the H-beam, and the transmission groove can drive the transmission rod to move when it moves up and down.

[0024] In the above technical solution, the lifting plate is further connected to the second bidirectional threaded rod, and the second bidirectional threaded rod is provided with threads with opposite directions at both ends.

[0025] In this technical solution, the screw thread ensures that the second bidirectional screw rod can drive the two lifting plates to move closer or further apart when it rotates.

[0026] In the above technical solution, the limiting block, the transmission rod, and the clamping block are integrally formed.

[0027] In this technical solution, the structural stability between the limiting block, the transmission rod, and the clamping block is ensured.

[0028] In the above technical solution, the slider and the corresponding movable plate are integrally formed.

[0029] In this technical solution, the structural stability between the slider and the moving plate is ensured.

[0030] The beneficial effects of this utility model are:

[0031] The SMW method pile extraction device, through the cooperation of the top plate, slide groove, slider, moving plate, groove, second bidirectional threaded rod, lifting plate and drive assembly, ensures that the distance between the two lifting plates in the moving plate can be adjusted, and the distance between the two moving plates can also be adjusted, so as to clamp and fix H-beams of different sizes, which is convenient to use. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0033] Figure 2 This is an exploded structural diagram of the slider and groove in this utility model;

[0034] Figure 3 This is a schematic diagram of the internal structure of the top plate in this utility model;

[0035] Figure 4 This is a schematic diagram of the internal structure of the movable plate in this utility model;

[0036] Figure 5 This is an exploded structural diagram of the transmission rod and transmission groove in this utility model;

[0037] Figure 6 This is a cross-sectional structural diagram of the movable plate in this utility model.

[0038] The markings in the diagram are as follows:

[0039] 1. H-beam; 2. Top plate; 3. Moving plate; 4. Hydraulic cylinder; 5. Connecting plate; 6. Slide groove; 7. First double-threaded rod; 8. Motor; 9. Slider; 10. Groove; 11. Round rod; 12. Second double-threaded rod; 13. Lifting plate; 14. Clamping block; 15. First limiting groove; 16. Transmission groove; 17. Limiting block; 18. Transmission rod; 19. Through groove; 20. Second limiting groove. Detailed Implementation

[0040] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0041] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0042] Example 1: This example provides a pile extraction device for the SMW method, including H-beam 1, and further comprising:

[0043] The top plate 2 has two grooves 6 at its bottom and two movable plates 3 at its bottom. Two sliders 9 are fixedly installed on the top of the movable plates 3 and extend into the corresponding grooves 6.

[0044] A drive assembly is located inside the top plate 2 and is used to drive two sliders 9 to move closer to or further away from each other.

[0045] Two grooves 10 are respectively opened at the bottom of two movable plates 3. A second bidirectional threaded rod 12 is rotatably installed in the groove 10. Two lifting plates 13 are slidably installed in the groove 10 and on the second bidirectional threaded rod 12. One end of the second bidirectional threaded rod 12 passes through one side of the groove 10 and extends to the outside.

[0046] Two sets of clamping assemblies are located below the two movable plates 3, and both are used to clamp the H-beam 1.

[0047] In use, the operator can place the top plate 2 onto the H-beam 1, with the two movable plates 3 positioned on either side of the H-beam 1. Then, using the two sets of clamping components, the operator clamps the four sides of the H-beam 1. Once all four sides of the H-beam 1 are clamped, the hooks on the crane can be fixed to the two lifting rings on the top plate 2. Then, the two lifting rings can be pulled upwards to lift the H-beam 1.

[0048] When the H-beam 1 is small, the operator can manually rotate the handle on the second bidirectional threaded rod 12 to make it rotate. Under the action of the thread, the second bidirectional threaded rod 12 will drive the corresponding two lifting plates 13 to move closer to each other in the groove 10. This process can adjust the distance between the two lifting plates 13. Subsequently, through the set drive component, the drive component will drive two sliders 9 to move closer to each other. The two sliders 9 will drive two moving plates 3 to move closer to each other, and the two moving plates 3 will drive the other two sliders 9 to move closer to each other, thereby adjusting the distance between the two moving plates 3. Through the above operation, it is ensured that H-beams 1 of different sizes can be clamped and fixed, and the use effect is better.

[0049] Example 2: This example provides a pile extraction device for the SMW method, which, in addition to the technical solutions of the above examples, also has the following technical features, including a driving component:

[0050] A first bidirectional threaded rod 7 is rotatably installed in one of the slide grooves 6. One end of the first bidirectional threaded rod 7 passes through two of the slide blocks 9. A round rod 11 is fixedly installed in the other slide groove 6. One end of the round rod 11 passes through the other two slide blocks 9. A motor 8 is fixedly installed on one side of the top plate 2. The output end of the motor 8 passes through one side of the top plate 2, extends into one of the slide grooves 6, and is coaxially connected to the first bidirectional threaded rod 7.

[0051] When the motor 8 is started, the output shaft of the motor 8 will drive the first bidirectional threaded rod 7 to rotate. Under the action of the thread, the first bidirectional threaded rod 7 will drive two sliders 9 to move closer to each other. The two sliders 9 will drive two moving plates 3 to move closer to each other. The two moving plates 3 will drive the other two sliders 9 to slide on the round rod 11 and move closer to each other, thereby adjusting the distance between the two moving plates 3.

[0052] Example 3: This example provides a pile extraction device for the SMW method. In addition to the technical solutions of the above examples, it also has the following technical features: the output shaft of the motor 8 is rotatably connected to the top plate 2, and two sliders 9 are threadedly connected to the first bidirectional threaded rod 7. The first bidirectional threaded rod 7 is provided with two sections of threads with opposite directions of rotation. The other two sliders 9 are slidably connected to the round rod 11.

[0053] In order to ensure that the output shaft of the motor 8 can rotate normally, the first bidirectional threaded rod 7 will drive two of the sliders 9 to move closer or further apart when it rotates under the action of the thread, so as to ensure that the other two sliders 9 can slide on the round rod 11.

[0054] Example 4: This example provides a pile extraction device for the SMW method, which, in addition to the technical solutions of the above examples, also has the following technical features, including a clamping assembly:

[0055] The connecting plate 5 is located below the movable plate 3. Two hydraulic cylinders 4 are fixedly installed at the bottom of the movable plate 3. The output ends of the two hydraulic cylinders 4 are fixed to the top of the connecting plate 5. The connecting plate 5 has a second limiting groove 20, a through groove 19 and a first limiting groove 15. The lower ends of the two lifting plates 13 in the movable plate 3 extend into the through groove 19. Two transmission grooves 16 are opened in the lifting plates 13. A transmission rod 18 is slidably installed in the transmission groove 16. A clamping block 14 is fixedly installed at one end of the transmission rod 18 and located in the first limiting groove 15. A limiting block 17 is fixedly installed at the other end of the transmission rod 18 and located in the second limiting groove 20.

[0056] When the four hydraulic cylinders 4 are activated, their output shafts will extend and drive the two connecting plates 5 to move downwards respectively. At this time, the transmission rods 18 will move downwards in the corresponding transmission grooves 16, and the two transmission rods 18 in the lifting plate 13 will move closer to each other. The two clamping blocks 14 fixed to the two transmission rods 18 will also move closer to each other in the first limiting groove 15, and the two limiting blocks 17 fixed to the two transmission rods 18 will move closer to each other in the second limiting groove 20, so that the corresponding two clamping blocks 14 can clamp one side of the H-beam 1.

[0057] Example 5: This example provides a pile extraction device for the SMW method. In addition to the technical solutions of the above examples, it also has the following technical features: the clamping block 14 is slidably connected to the first limiting groove 15, the limiting block 17 is slidably connected to the second limiting groove 20, the lifting plate 13 is slidably connected to the through groove 19, the clamping block 14 is in close contact with the H-beam 1, the transmission groove 16 is inclined, and the two transmission grooves 16 on the lifting plate 13 are symmetrically arranged.

[0058] Specifically, it ensures that the clamping block 14 can slide in the first limiting groove 15, that the limiting block 17 can slide in the second limiting groove 20, that the lifting plate 13 can slide in the through groove 19, that the clamping blocks 14 can clamp and fix the H-beam 1, and that the transmission groove 16 can drive the transmission rod 18 to move when it moves up and down.

[0059] Example 6: This example provides a pile extraction device for the SMW method. In addition to the technical solutions of the above examples, it also has the following technical features: the lifting plate 13 is threadedly connected to the second bidirectional threaded rod 12, and the second bidirectional threaded rod 12 is provided with threads with opposite directions at both ends.

[0060] The screw thread ensures that the second bidirectional screw rod 12 can drive the two lifting plates 13 to move closer or further apart when it rotates.

[0061] Example 7: This example provides a pile extraction device for the SMW method. In addition to the technical solutions of the above examples, it also has the following technical features: the limiting block 17, the transmission rod 18, and the clamping block 14 are integrally formed.

[0062] This ensures the structural stability between the limiting block 17, the transmission rod 18, and the clamping block 14.

[0063] Example 8: This example provides a pile extraction device for the SMW method. In addition to the technical solutions of the above examples, it also has the following technical features: the slider 9 and the corresponding moving plate 3 are integrally formed.

[0064] Among these measures, it is essential to ensure the structural stability between the slider 9 and the moving plate 3.

[0065] Working principle: During use, the operator can place the top plate 2 onto the H-beam 1, with the two connecting plates 5 positioned on either side of the H-beam 1. At this time, the four hydraulic cylinders 4 can be activated. The output shafts of the four hydraulic cylinders 4 will extend and drive the two connecting plates 5 to move downwards. At this time, the transmission rods 18 will move downwards in the corresponding transmission grooves 16. The two transmission rods 18 in the lifting plate 13 will move closer to each other, and the two clamping blocks 14 fixed to the two transmission rods 18 will also move closer to each other in the first limiting groove 15. The two limiting blocks 17 fixed to the two transmission rods 18 will move closer to each other in the second limiting groove 20. This allows the corresponding two clamping blocks 14 to clamp one side of the H-beam 1. Subsequently, the remaining clamping blocks 14 will clamp the other three sides of the H-beam 1. After all four sides of the H-beam 1 are clamped, the hooks on the crane can be fixed to the two lifting rings on the top plate 2. Then, the two lifting rings can be pulled upwards to lift the H-beam 1.

[0066] When the H-beam 1 is small, the operator can manually rotate the handle on the second bidirectional threaded rod 12 to make it rotate. Under the action of the thread, the second bidirectional threaded rod 12 will drive the corresponding two lifting plates 13 to move closer to each other in the groove 10. This process can adjust the distance between the two lifting plates 13. The positions of the transmission rod 18, clamping block 14, and limiting block 17 in the lifting plate 13 can be adjusted. Then, the motor 8 can be started. The output shaft of the motor 8 will drive the first bidirectional threaded rod 7 to rotate. Under the action of the thread, the first bidirectional threaded rod 7 will drive two sliders 9 to move closer to each other. The two sliders 9 will drive two moving plates 3 to move closer to each other. The two moving plates 3 will drive the other two sliders 9 to slide on the round rod 11 and move closer to each other, thereby adjusting the distance between the two moving plates 3. This process ensures that H-beams 1 of different sizes can be clamped and fixed, resulting in better performance.

[0067] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A pile extraction device for the SMW method, comprising H-beams (1), characterized in that, Also includes: The top plate (2) has two grooves (6) at its bottom and two movable plates (3) at its bottom. Two sliders (9) are fixedly installed on the top of the movable plates (3) and the sliders (9) extend into the corresponding grooves (6). A drive assembly located within the top plate (2) and used to drive two sliders (9) to move closer to or further away from each other; Two grooves (10) are respectively opened at the bottom of two movable plates (3). A second bidirectional threaded rod (12) is rotatably installed in the groove (10). Two lifting plates (13) are slidably installed in the groove (10) and on the second bidirectional threaded rod (12). One end of the second bidirectional threaded rod (12) passes through one side of the groove (10) and extends to the outside. Two sets of clamping components are located below the two movable plates (3) and are used to clamp the H-beam (1).

2. The SMW method pile extraction device according to claim 1, characterized in that, The driving component includes: A first bidirectional threaded rod (7) is rotatably installed in one of the slide grooves (6). One end of the first bidirectional threaded rod (7) passes through two of the slide blocks (9). A round rod (11) is fixedly installed in the other slide groove (6). One end of the round rod (11) passes through the other two slide blocks (9). A motor (8) is fixedly installed on one side of the top plate (2). The output end of the motor (8) extends through one side of the top plate (2) into one of the slide grooves (6) and is coaxially connected to the first bidirectional threaded rod (7).

3. The SMW method pile extraction device according to claim 2, characterized in that, The output shaft of the motor (8) is rotatably connected to the top plate (2), and two of the sliders (9) are threadedly connected to the first bidirectional threaded rod (7). The first bidirectional threaded rod (7) has two threads with opposite directions. The other two sliders (9) are slidably connected to the round rod (11).

4. The SMW method pile extraction device according to claim 1, characterized in that, The clamping assembly includes: A connecting plate (5) is located below a movable plate (3). Two hydraulic cylinders (4) are fixedly installed at the bottom of the movable plate (3). The output ends of the two hydraulic cylinders (4) are fixed to the top of the connecting plate (5). A second limiting groove (20), a through groove (19), and a first limiting groove (15) are provided in the connecting plate (5). The lower ends of the two lifting plates (13) in the movable plate (3) extend into the through groove (19). Two transmission grooves (16) are provided in the lifting plate (13). A transmission rod (18) is slidably installed in the transmission groove (16). A clamping block (14) is fixedly installed at one end of the transmission rod (18) in the first limiting groove (15). A limiting block (17) is fixedly installed at the other end of the transmission rod (18) in the second limiting groove (20).

5. A pile extraction device for the SMW method according to claim 4, characterized in that, The clamping block (14) is slidably connected to the first limiting groove (15), the limiting block (17) is slidably connected to the second limiting groove (20), the lifting plate (13) is slidably connected to the through groove (19), the clamping block (14) is in close contact with the H-beam (1), the transmission groove (16) is inclined, and the two transmission grooves (16) on the lifting plate (13) are symmetrically arranged.

6. The SMW method pile extraction device according to claim 1, characterized in that, The lifting plate (13) is threadedly connected to the second bidirectional threaded rod (12), which has threads with opposite directions at both ends.

7. A pile extraction device for the SMW method according to claim 5, characterized in that, The limiting block (17), transmission rod (18), and clamping block (14) are integrally formed.

8. The SMW method pile extraction device according to claim 1, characterized in that, The slider (9) and the corresponding movable plate (3) are integrally formed.

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