Hydraulic pile extractor

Abstract

The utility model discloses a hydraulic pile extractor relates to pile extractor technical field, including pile extractor and hydraulic cylinder, the pile extractor includes C type frame, the inside of the upper and lower side wall of C type frame is symmetric and is provided with fixed clamping plate, the fixed clamping plate one end between through the pivot swing installation has the left and right symmetry swing arm, through the effective regulation of the height of pile extractor of mechanical arm, the rotating disc of mechanical arm bottom can also effectively satisfy the pipe pile of different positions and carry out the pile extraction operation, through the upward stretching of mechanical arm, thereby guaranteeing the effect that pipe pile whole is pulled out to the pile extractor one time and holds, through the push rod of hydraulic cylinder between two fixed clamping plates and drives swing arm to rotate along the pivot between fixed clamping plate and swing arm, thereby effectively adjusting the interval between two clamping blocks, thereby effectively satisfying the pile extraction operation of pipe pile of different sizes.

Description

Technical Field

[0001] This utility model specifically relates to the field of pile extractor technology, and more specifically to a hydraulic pile extractor. Background Technology

[0002] The pile extractor uses high-frequency vibration to induce resonance between the pile and the soil, disrupting the soil structure and reducing the friction between the pile and the soil, thus gradually pulling the pile out. Its principle is similar to a vibratory pile driver, except that its function is to extract piles instead of driving them. It utilizes the immense force generated by a hydraulic system to overcome the friction between the soil and the pile. It typically consists of two parts: a main unit and a power station. The main unit's pile clamp holds the steel section to be extracted, and the power station provides pressure to the main unit's hydraulic cylinders, causing them to lift upwards a certain distance, thus pulling the pile out section by section.

[0003] Traditional pile extractors typically employ a traction-type structure. This requires on-site assembly of the extractor during pile extraction. The equipment has multiple components, and assembly requires the coordinated efforts of multiple people, which consumes a significant amount of time and impacts construction efficiency.

[0004] A search revealed that Chinese Patent Publication No. CN202020945264.5 discloses a hydraulic pile extractor; it includes a hydraulic cylinder arranged vertically with left and right sides symmetrically, a U-shaped base plate, a middle U-shaped fixing plate, and an upper U-shaped fixing plate arranged in parallel from bottom to top on the hydraulic cylinder vertically connected to the hydraulic cylinder, and a pile extraction assembly connected to the top of the piston rod of the hydraulic cylinder and used to extract the pile tube; the pile extraction assembly is fixedly connected to the top of the piston rod of the hydraulic cylinder by a nut, the open end of the U-shaped base plate is fixedly connected to the bottom of the hydraulic cylinder, the open end of the middle U-shaped fixing plate is fixedly connected to the middle of the hydraulic cylinder, the open end of the upper U-shaped fixing plate is fixedly connected to the side of the upper end cover of the hydraulic cylinder, and the end of the middle U-shaped fixing plate away from the opening and the end of the upper U-shaped fixing plate away from the opening are respectively fixedly connected to the bottom and middle of the back connecting plate;

[0005] The device in the aforementioned patent moves the pile pipe support flange upward by moving the piston rod upward during pile extraction, thus achieving the pile extraction effect. However, in actual applications, the pile pipe is quite long, requiring the piston rod length to be effectively matched. This results in a large volume of the pile extractor. Furthermore, the device in the aforementioned patent cannot effectively adjust the size of the pile pipe support flange. Therefore, the device in the aforementioned patent can only achieve the pile extraction effect for pipe piles of the same size. When the size of the pipe pile changes, the pile pipe support flange in the aforementioned patent cannot effectively support and fix the pipe pile. Utility Model Content

[0006] The purpose of this invention is to provide a hydraulic pile extractor. In this device, a clamping block is installed on the inner side of two movable arms. The clamping surface of the clamping block is serrated, which effectively ensures the clamping force of the clamping block. The two movable arms are adjusted by a hydraulic cylinder, thereby effectively meeting the pile extraction operation of different sizes of pipe piles. The pile extraction height is effectively adjusted by a mechanical arm. At the same time, the drive component can also effectively meet the pile extraction needs at different positions, thereby effectively improving the working efficiency of the pile extractor and solving the problems mentioned in the background technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A hydraulic pile extractor includes a pile extractor and a hydraulic cylinder; the pile extractor includes a C-shaped frame; the inner sides of the upper and lower side walls of the C-shaped frame are symmetrically provided with fixed clamps; and symmetrical movable arms are movably mounted on one end of each fixed clamp via a pivot.

[0009] The movable arm includes a drive unit and a clamping unit. The hydraulic cylinder is provided with at least one drive unit that cooperates with the drive unit. The drive unit cooperates with the drive unit to drive the two sets of movable arms to rotate around the hinge point and drive the two clamping units to clamp the workpiece.

[0010] The drive unit of the movable arm is a movably mounted rotating shaft, and the other end of the rotating shaft is connected to the drive unit of the hydraulic cylinder. The hydraulic cylinder is equipped with a hydraulic lock.

[0011] As a further technical solution of this utility model, the end of the pile extractor is connected to a mechanical arm, and the side of the C-shaped frame away from the fixed clamp is fixedly installed with the turntable at the end of the mechanical arm; the bottom of the mechanical arm is fixedly installed on the drive assembly through the rotating disk.

[0012] As a further technical solution of this utility model, the drive component includes a frame; slide rails are symmetrically arranged on both sides inside the frame; a slider is slidably installed on the slide rail; the slider is fixedly installed with the slide plate.

[0013] As a further technical solution of this utility model, a toothed plate is fixedly installed on the side of the slide rail away from the side wall of the frame; the toothed plate is meshed with a gear; the gear is fixedly installed on the rotating shaft connected to the output shaft of the drive motor.

[0014] As a further technical solution of this utility model, the drive motor is fixed to one side of the slide plate by a mounting plate;

[0015] As a further technical solution of this utility model, the clamping part is located at the end of the movable arm 33, and a groove is provided on its inner side. A clamping block 34 is installed inside the groove, and the clamping surface of the clamping block 34 is serrated.

[0016] As a further technical solution of this utility model, the drive unit is a hydraulic push rod inside the hydraulic cylinder. One drive unit is provided. One drive unit is connected to the drive part of one side of the movable arm, and the other side of the movable arm is connected to the side of the hydraulic cylinder away from the drive unit. The hydraulic cylinder drives one side of the movable arm to clamp the other side of the movable arm through the drive unit on one side.

[0017] As a further technical solution of this utility model, two drive units are provided, and the two drive units are respectively connected to the drive parts of the movable arms on both sides. The hydraulic cylinder drives the movable arms to clamp towards the center through the drive units on both sides.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] In use, the height of the pile extractor can be effectively adjusted by the robotic arm to meet the needs of multiple pipe piles with different heights. The rotating disk at the bottom of the robotic arm can also effectively meet the needs of extracting pipe piles at different positions. By extending the robotic arm upward, the pile extractor can achieve the effect of pulling out the entire pipe pile in one pass.

[0020] In this utility model, during pile extraction, the push rod of the hydraulic cylinder between the two fixed clamping plates drives the movable arm to rotate along the pivot between the fixed clamping plates and the movable arm, thereby effectively adjusting the distance between the two clamping blocks and thus effectively meeting the pile extraction operation of pipe piles of different sizes.

[0021] In this invention, a robotic arm is mounted on a sliding plate. The sliding mechanism is achieved by a drive motor that drives the meshing between gears and toothed plates, allowing the slider to slide back and forth along the slide rail inside the frame. This effectively adjusts the position of the robotic arm and the pile extractor as a whole, thus meeting the requirements for extracting pipe piles at different spacings and positions. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This utility model Figure 1 Another perspective structural diagram.

[0024] Figure 3 This utility model Figure 2 Another perspective structural diagram.

[0025] Figure 4 This utility model Figure 1 A breakdown diagram.

[0026] Figure 5This is the main view of the driving component in this utility model.

[0027] Figure 6 This utility model Figure 4 Schematic diagram of the three-dimensional structure of the pile extractor.

[0028] Figure 7 This utility model Figure 6 Another perspective structural diagram.

[0029] Figure 8 This utility model Figure 6 A breakdown diagram.

[0030] In the diagram: 1-Drive assembly, 10-Frame, 11-Slide rail, 12-Drive motor, 13-Slide plate, 14-Gear plate, 15-Gear, 2-Mechanical arm, 3-Pile puller, 30-C-shaped frame, 31-Fixed clamping plate, 32-Hydraulic cylinder, 33-Moving arm, 34-Clamping block. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-8 In this embodiment of the utility model, a hydraulic pile extractor includes a pile extractor 3 and a hydraulic cylinder 32; the pile extractor 3 includes a C-shaped frame 30; the inner sides of the upper and lower side walls of the C-shaped frame 30 are symmetrically provided with fixing plates 31; and the fixing plates 31 are movably mounted with symmetrical movable arms 33 at one end via a rotating shaft.

[0033] The movable arm 33 includes a driving part and a clamping part. The hydraulic cylinder 32 is provided with at least one driving unit that cooperates with the driving part. The driving unit cooperates with the driving part to drive the two sets of movable arms 33 to rotate around the hinge point and drive the two clamping parts to clamp the workpiece.

[0034] In this embodiment, the end of the pile extractor 3 is connected to a mechanical arm 2, and the side of the C-shaped frame 30 away from the fixed clamping plate 31 is fixedly installed with the turntable at the end of the mechanical arm 2; the bottom of the mechanical arm 2 is fixedly installed on the drive assembly 1 through the rotating disk.

[0035] By adopting the above technical solution, the height of the pile extractor 3 can be effectively adjusted by the mechanical arm 2 during use, so as to meet the needs of multiple pipe piles with different heights. The rotating disk at the bottom of the mechanical arm 2 can also effectively meet the needs of pipe piles at different positions. By extending the mechanical arm 2 upward, it can be ensured that the pile extractor 3 can achieve the effect of pulling out the entire pipe pile in one operation.

[0036] In this embodiment, the drive assembly 1 includes a frame 10; slide rails 11 are symmetrically arranged on both sides inside the frame 10; a slider is slidably mounted on the slide rails 11; the slider is fixedly mounted to the slide plate 13.

[0037] By adopting the above technical solution, when extracting piles, the push rod of the hydraulic cylinder 32 between the two fixed clamping plates 31 drives the movable arm 33 to rotate along the pivot between the fixed clamping plate 31 and the movable arm 33, thereby effectively adjusting the distance between the two clamping blocks 34, thus effectively meeting the pile extraction operation of pipe piles of different sizes.

[0038] Furthermore, a toothed plate 14 is fixedly installed on the side of the slide rail 11 away from the side wall of the frame 10; the toothed plate 14 is meshed with a gear 15; the gear 15 is fixedly installed on the rotating shaft connected to the output shaft of the drive motor 12.

[0039] In this embodiment, the drive motor 12 is fixed to one side of the slide plate 13 by a mounting plate;

[0040] By adopting the above technical solution, the robotic arm 2 is installed on the slide plate 13. The slide 13 is driven by the drive motor 12 to drive the meshing between the gear 15 and the toothed plate 14, so that the slide 13 slides back and forth along the slide rail 11 inside the frame 10 through the slider, thereby effectively adjusting the position of the robotic arm 2 and the pile extractor 3 as a whole, so as to meet the requirements of pile extraction of pipe piles with different spacing and different positions.

[0041] In this embodiment, the clamping part is located at the end of the movable arm 33, and a groove is provided on its inner side. A clamping block 34 is installed inside the groove, and the clamping surface of the clamping block 34 is serrated.

[0042] By adopting the above technical solution, during use, the sawtooth structure on the inner side of the clamping block 34 can keep the pile puller 3 in working condition, effectively clamp the workpiece, and prevent it from falling off.

[0043] In this embodiment, the driving unit is a hydraulic push rod inside the hydraulic cylinder 32. There is one driving unit. One driving unit is connected to the driving part of one side of the movable arm 33, and the other side of the movable arm 33 is connected to the side of the hydraulic cylinder 32 away from the driving unit. The hydraulic cylinder 32 drives one side of the movable arm 33 to clamp the other side of the movable arm 33 through the driving unit on one side.

[0044] In this embodiment, there are two drive units, which are respectively connected to the drive parts of the movable arms 33 on both sides. The hydraulic cylinder 32 drives the movable arms 33 to clamp towards the center through the drive units on both sides.

[0045] By adopting the above two technical solutions, at least one drive unit can be provided. This ensures that when the movable arm 33 is driven to achieve the clamping effect, the clamping process can still be satisfied even when one movable arm 33 is not driven. Ultimately, this structure can adapt to different operating environments. In some special compact environments, as long as one drive unit is kept running, the clamping effect can be achieved.

[0046] The working principle of this utility model is as follows: When in use, the height of the pile extractor 3 can be effectively adjusted by the mechanical arm 2 to meet the needs of multiple pipe piles with different heights. The rotating disk at the bottom of the mechanical arm 2 can also effectively meet the needs of pipe piles at different positions. By extending the mechanical arm 2 upward, it can be ensured that the pile extractor 3 can achieve the effect of pulling out the entire pipe pile in one operation.

[0047] During pile extraction, the push rod of the hydraulic cylinder 32 between the two fixed clamping plates 31 drives the movable arm 33 to rotate along the shaft between the fixed clamping plate 31 and the movable arm 33, thereby effectively adjusting the distance between the two clamping blocks 34, thus effectively meeting the pile extraction operation of pipe piles of different sizes.

[0048] The robotic arm 2 is mounted on the slide plate 13. The slide plate 13 is driven by the drive motor 12 to engage the gear 15 with the toothed plate 14, so that the slide plate 13 can slide back and forth along the slide rail 11 inside the frame 10 through the slider, thereby effectively adjusting the position of the robotic arm 2 and the pile extractor 3 as a whole, so as to meet the requirements of pile extraction at different spacings and positions.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hydraulic pile puller for clamping workpieces, characterized in that: It includes a pile extractor (3) and a hydraulic cylinder (32); the pile extractor (3) includes a C-shaped frame (30); the inner sides of the upper and lower side walls of the C-shaped frame (30) are symmetrically provided with fixed clamps (31); the fixed clamps (31) are symmetrically mounted on one end through a rotating shaft. The movable arm (33) includes a driving part and a clamping part. The hydraulic cylinder (32) is provided with at least one driving unit that cooperates with the driving part. The driving unit cooperates with the driving part to drive the two sets of movable arms (33) to rotate around the hinge point and drive the two clamping parts to clamp the workpiece. The drive unit of the movable arm (33) is a movable rotating shaft, and the other end of the rotating shaft is connected to the drive unit of the hydraulic cylinder (32). The hydraulic cylinder (32) is fitted with a hydraulic lock (35).

2. The hydraulic pile extractor according to claim 1, characterized in that: The end of the pile puller (3) is connected to a mechanical arm (2), and the side of the C-frame (30) away from the fixed clamp (31) is fixedly installed with the turntable at the end of the mechanical arm (2); the bottom of the mechanical arm (2) is fixedly installed on the drive assembly (1) by a rotating disk.

3. A hydraulic pile extractor according to claim 2, characterized in that: The drive assembly (1) includes a frame (10); slide rails (11) are symmetrically arranged on both sides inside the frame (10); a slider is slidably installed on the slide rail (11); the slider is fixedly installed with the slide plate (13).

4. A hydraulic pile extractor according to claim 3, characterized in that: A toothed plate (14) is fixedly installed on the side of the slide rail (11) away from the side wall of the frame (10); the toothed plate (14) is meshed with a gear (15); the gear (15) is fixedly installed on the rotating shaft connected to the output shaft of the drive motor (12).

5. A hydraulic pile extractor according to claim 4, characterized in that: The drive motor (12) is fixed to one side of the slide plate (13) by a mounting plate.

6. A hydraulic pile extractor according to claim 1, characterized in that: The clamping part is located at the end of the movable arm (33), and a groove is provided on its inner side. A clamping block (34) is installed inside the groove, and the clamping surface of the clamping block (34) is serrated.

7. A hydraulic pile extractor according to claim 1, characterized in that: The drive unit is a hydraulic push rod inside the hydraulic cylinder (32). There is one drive unit. One drive unit is connected to the drive part of the movable arm (33) on one side. The movable arm (33) on the other side is connected to the side of the hydraulic cylinder (32) away from the drive unit. The hydraulic cylinder (32) drives the movable arm (33) on one side to clamp the movable arm (33) on the other side through the drive unit on one side.

8. A hydraulic pile extractor according to claim 1, characterized in that: Two drive units are provided, and the two drive units are respectively connected to the drive parts of the movable arms (33) on both sides. The hydraulic cylinder (32) drives the movable arms (33) to clamp towards the center through the drive units on both sides.

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