Pile pulling device for water conservancy project

Abstract

The invention relates to the technical field of pile pulling devices, and discloses a pile pulling device for hydraulic engineering, which comprises a bottom plate, a first C-shaped plate, a first hydraulic cylinder, a first support plate, a first clamping block, a second C-shaped plate, a second hydraulic cylinder, a second support plate, a second clamping block, a vertical plate and a third hydraulic cylinder. In the using process, the first hydraulic cylinders on the two sides and the second hydraulic cylinders on the two sides are controlled to work, and the first clamping blocks on the two sides and the second clamping blocks on the two sides can clamp or loosen a pile. And after the moving end of the third hydraulic cylinder completely extends out and the first clamping blocks on the two sides and the second clamping blocks on the two sides loosen and clamp the pile correspondingly, the moving end of the third hydraulic cylinder is controlled to completely return, and one-time pile pulling can be completed. And then the first clamping blocks on the two sides and the second clamping blocks on the two sides clamp and loosen the pile correspondingly, the movable end of the third hydraulic cylinder can be controlled to completely stretch out again, the first clamping blocks on the two sides and the second clamping blocks on the two sides are loosened and clamped again, pile pulling can be conducted again, and the pile pulling device is suitable for pile pulling work of different pile lengths and sizes.

Description

Technical Field

[0001] The present application relates to the technical field of pile pulling devices, for example, to a pile pulling device for water conservancy projects. Background Art

[0002] The related art (Announcement No.: CN220620107U) discloses a pile puller for water conservancy engineering, including a chassis. Two symmetrically arranged adjustment brackets are fixedly installed on the upper surface of the chassis, and a mounting plate is fixedly installed on the upper end surface of the adjustment bracket. A plurality of symmetrically arranged movable grooves are penetrated through the mounting plate, and a plurality of movable grooves are slidably installed with slide bars inside, and a mounting block is fixedly installed at the bottom of the slide bar, and a connecting rod is fixedly installed on the bottom surface of the mounting block, and a clamping block is fixedly installed on the bottom surface of the connecting rod. Extrusion blocks are fixedly installed on the upper end surfaces of the plurality of slide bars, and the upper end surface of the mounting plate is located between the plurality of extrusion blocks and rotatably installed with an extrusion plate.

[0003] In the process of implementing the above embodiments, it is found that there are at least the following problems in the related art:

[0004] The pile puller for water conservancy projects can push the multiple extrusion blocks to disperse from each other after the extrusion disk is controlled to rotate, and finally adjust the distance between the multiple clamping blocks to be suitable for pile pulling work with different pile diameters. However, due to the limitation of the moving stroke of the two adjustment brackets, the pile can only be pulled out a specific distance. Therefore, it is difficult to completely pull out long piles, and it cannot be suitable for pile pulling work with different pile lengths.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The disclosed embodiment provides a pile pulling device for water conservancy engineering, which can be applicable to pile pulling work with different pile lengths.

[0008] In some embodiments, the pile extraction device for water conservancy projects includes: a bottom plate, the bottom plate includes a notch; a first C-shaped plate, connected to the top surface of the bottom plate; first hydraulic cylinders, respectively installed on opposite side walls of the first C-shaped plate, and the two first hydraulic cylinders are distributed oppositely; first support plates, respectively installed on the moving ends of the two first hydraulic cylinders, and the planes where the two first support plates are located are parallel to each other; first clamping blocks, respectively installed on the opposite surfaces of the two first support plates; a second C-shaped plate, located above the first C-shaped plate; second hydraulic cylinders, respectively installed on opposite side walls of the second C-shaped plate, and the two second hydraulic cylinders are distributed oppositely; second support plates, respectively installed on the moving ends of the two second hydraulic cylinders, and the planes where the two second support plates are located are parallel to each other; second clamping blocks, respectively installed on the opposite surfaces of the two second support plates; a vertical plate, connected to the top surface of the first support plate and located outside the first C-shaped plate; a third hydraulic cylinder, installed on the vertical plate, the moving end of the third hydraulic cylinder faces the bottom plate and is connected to the second C-shaped plate.

[0009] Optionally, it further includes: a first rotating shaft, rotatably installed on the side wall of the first C-shaped plate, the axis of the first rotating shaft is perpendicular to the axes of the moving ends of the two first hydraulic cylinders; a first gear, installed on the first rotating shaft; first racks, respectively installed on the opposite surfaces of the two first support plates and both meshing with the first gear, and the two first racks are centrosymmetrically distributed.

[0010] Optionally, it further includes: a second rotating shaft, rotatably installed on the side wall of the second C-shaped plate, the axis of the second rotating shaft is perpendicular to the axes of the moving ends of the two second hydraulic cylinders; a second gear, installed on the second rotating shaft; second racks, respectively installed on the opposite surfaces of the two second support plates and both meshing with the second gear, and the two second racks are centrosymmetrically distributed.

[0011] Optionally, it further includes: first optical axes, respectively passing through opposite side walls of the first C-shaped plate, and the two first optical axes are respectively connected to the two first support plates; first linear bearings, respectively sleeved on the two first optical axes and both installed on the outer wall of the first C-shaped plate.

[0012] Optionally, it further includes: second optical axes, respectively passing through opposite side walls of the second C-shaped plate, and the two second optical axes are respectively connected to the two second support plates; second linear bearings, respectively sleeved on the two second optical axes and both installed on the outer wall of the second C-shaped plate.

[0013] Optionally, it further includes: a guide rail, installed on the vertical plate along the moving direction of the moving end of the third hydraulic cylinder; a slider, installed on the guide rail and connected to the second C-shaped plate.

[0014] Optionally, it further includes: fourth hydraulic cylinders, which are respectively installed on opposite side walls of the second C-shaped plate, the two second hydraulic cylinders are distributed oppositely, and are respectively located above the two second hydraulic cylinders; third C-shaped plates, which are respectively installed on the moving ends of the fourth hydraulic cylinders on both sides, and the two third C-shaped plates on both sides are distributed oppositely; V-shaped rollers, which are respectively rotatably installed on opposite side walls of the two third C-shaped plates on both sides, and are evenly distributed on each third C-shaped plate along the moving direction of the moving end of the third hydraulic cylinder; first sprockets, which are respectively installed on a plurality of V-shaped rollers on both sides, and are respectively located outside the two third C-shaped plates on both sides; first chains, which are respectively sleeved on two adjacent first sprockets on the same side. Among them, two of the plurality of V-shaped rollers on both sides are controlled to rotate in opposite directions, so that the plurality of V-shaped rollers on both sides rotate in opposite directions.

[0015] Optionally, it further includes: first pedestal bearings, which are respectively installed on the outer walls of the two third C-shaped plates; spline sleeves, which are respectively installed on the two first pedestal bearings, the axes of the two spline sleeves coincide with each other and are perpendicular to the axes of the plurality of V-shaped rollers on both sides; first bevel gears, which are respectively installed on the outer walls of the two spline sleeves; second bevel gears, which are respectively meshed with the two first bevel gears on both sides, and are respectively installed on two of the plurality of V-shaped rollers on both sides; a spline shaft, which penetrates through the two spline sleeves; second pedestal bearings, which are sleeved on the spline shaft and are installed on the vertical plate. Among them, the spline shaft can be controlled to rotate, so that two of the plurality of V-shaped rollers on both sides rotate in opposite directions.

[0016] Optionally, it further includes: a worm and worm gear reducer, which is installed on the vertical plate, and the axis of the output end of the worm and worm gear reducer is parallel to the axis of the spline shaft; a second sprocket, which is installed on the output end of the worm and worm gear reducer; a third sprocket, which is installed on the spline shaft; a second chain, which is sleeved on the third sprocket and the second sprocket; a motor, which is installed on the input end of the reducer.

[0017] Optionally, it further includes: third optical axes, which respectively penetrate through opposite side walls of the second C-shaped plate, and the two third optical axes on both sides are respectively connected to the two third C-shaped plates on both sides; third linear bearings, which are respectively sleeved on the two third optical axes and are respectively installed on the outer walls of the two third C-shaped plates.

[0018] The pile pulling device for water conservancy projects provided by the embodiments of the present disclosure can achieve the following technical effects:

[0019] A pile extraction device for water conservancy projects provided by an embodiment of the present disclosure includes a bottom plate, a first C-shaped plate, a first hydraulic cylinder, a first support plate, a first clamping block, a second C-shaped plate, a second hydraulic cylinder, a second support plate, a second clamping block, a vertical plate, and a third hydraulic cylinder. The bottom plate includes a notch for accommodating a pile. The first C-shaped plate is connected to the top surface of the bottom plate and surrounds the pile accommodated by the notch. The first hydraulic cylinders are respectively installed on opposite side walls of the first C-shaped plate, and the two first hydraulic cylinders are distributed oppositely and are both used to provide driving force. The first support plates are respectively installed on the moving ends of the two first hydraulic cylinders, and the planes where the two first support plates are located are parallel to each other and move towards or away from each other under the drive of the two first hydraulic cylinders. The first clamping blocks are respectively installed on the opposite surfaces of the two first support plates, and the two first clamping blocks and the first support plates are detachably installed by bolts. The second C-shaped plate is located above the first C-shaped plate and also surrounds the pile accommodated by the notch. The second hydraulic cylinders are respectively installed on opposite side walls of the second C-shaped plate, and the two second hydraulic cylinders are distributed oppositely and are both used to provide driving force. The second support plates are respectively installed on the moving ends of the two second hydraulic cylinders, and the planes where the two second support plates are located are parallel to each other and move towards or away from each other under the drive of the two second hydraulic cylinders. The second clamping blocks are respectively installed on the opposite surfaces of the two second support plates, and the two second clamping blocks and the second support plates are also detachably installed by bolts. The vertical plate is connected to the top surface of the first support plate and is located outside the first C-shaped plate for supporting and installing the third hydraulic cylinder. The third hydraulic cylinder is installed on the vertical plate for providing driving force. The moving end of the third hydraulic cylinder faces the bottom plate and is connected to the second C-shaped plate, and the second C-shaped plate moves closer to or away from the bottom plate under the drive of the third hydraulic cylinder.

[0020] During use, controlling the two first hydraulic cylinders to work can drive the two first support plates to move towards or away from each other, finally changing the distance between the two first clamping blocks, so as to clamp or loosen the pile. Controlling the two second hydraulic cylinders to work can drive the two second support plates to move towards or away from each other, finally changing the distance between the two second clamping blocks, so as to clamp or loosen the pile. Controlling the third hydraulic cylinder to work can drive the second C-shaped plate to move closer to or away from the bottom plate, finally making the two second clamping blocks move closer to or away from the bottom plate. When the moving end of the third hydraulic cylinder fully extends and the two first clamping blocks and the two second clamping blocks respectively loosen and clamp the pile, controlling the moving end of the third hydraulic cylinder to fully retract can complete one pile extraction. Then, making the two first clamping blocks and the two second clamping blocks respectively clamp and loosen the pile, controlling the moving end of the third hydraulic cylinder to fully extend again, and making the two first clamping blocks and the two second clamping blocks respectively loosen and clamp again can perform pile extraction again. Therefore, by controlling the third hydraulic cylinder, the two second hydraulic cylinders, and the two first hydraulic cylinders to work alternately, pile extraction can be repeated, so as to be applicable to pile extraction work with different pile lengths.

[0021] The above general description and the following description are only exemplary and explanatory and are not used to limit this application. Description of the Drawings

[0022] One or more embodiments are exemplarily described by corresponding drawings, and these exemplary descriptions and drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are considered similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 It is a schematic diagram of the main structure of a pile pulling device for a water conservancy project provided by an embodiment of the present disclosure;

[0024] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure at the middle BB;

[0026] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0027] Figure 5 yes Figure 1 Schematic diagram of the cross-sectional structure at DD in the middle;

[0028] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure at E in the middle;

[0029] Figure 7 yes Figure 1 Schematic diagram of the cross-sectional structure at FF in the middle;

[0030] Figure 8 yes Figure 7 Schematic diagram of the enlarged structure at G in the middle;

[0031] Fig. 9 It is a rear view structural schematic diagram of a pile pulling device for a water conservancy project provided by an embodiment of the present disclosure;

[0032] Fig.10 yes Fig. 9 Schematic diagram of the enlarged structure at H in the middle.

[0033] Reference numerals:

[0034] 1: Bottom plate; 2: First C-shaped plate; 3: First hydraulic cylinder; 4: First support plate; 5: First clamping block; 6: Second C-shaped plate; 7: Second hydraulic cylinder; 8: Second support plate; 9: Second clamping block; 10: Vertical plate; 11: Third hydraulic cylinder; 12: First rotating shaft; 13: First gear; 14: First rack; 15: First bearing seat; 16: Second rotating shaft; 17: Second gear; 18: Second rack; 19: Second bearing seat; 20: First optical axis; 21: Second optical axis; 22: Guide rail; 23: Slide block; 24: Fourth hydraulic cylinder; 25: Third C-shaped plate; 26: V-shaped roller; 27: First chain; 28: First pedestal bearing; 29: Spline sleeve; 30: First bevel gear; 31: Second bevel gear; 32: Spline shaft; 33: Second pedestal bearing; 34: Worm and worm gear reducer; 35: Second chain; 36: Motor; 37: Third optical axis. Detailed implementation mode

[0035] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and explanation purposes and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.

[0036] The terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the embodiments of the present disclosure are used to distinguish similar objects and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0037] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0039] Unless otherwise stated, the term "plurality" means two or more.

[0040] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0041] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0043] Combination Figures 1 to 5As shown in the figure, an extraction device for water conservancy projects provided by an embodiment of the present disclosure includes a bottom plate 1, a first C-shaped plate 2, a first hydraulic cylinder 3, a first support plate 4, a first clamping block 5, a second C-shaped plate 6, a second hydraulic cylinder 7, a second support plate 8, a second clamping block 9, a vertical plate 10, and a third hydraulic cylinder 11. The bottom plate 1 includes a notch for accommodating a pile. The first C-shaped plate 2 is connected to the top surface of the bottom plate 1 and surrounds the pile accommodated by the notch. The first hydraulic cylinders 3 are respectively installed on the opposite side walls of the first C-shaped plate 2, and the two first hydraulic cylinders 3 are distributed oppositely and are both used to provide driving force. The first support plates 4 are respectively installed on the moving ends of the two first hydraulic cylinders 3, and the planes where the two first support plates 4 are located are parallel to each other and move towards or away from each other under the drive of the two first hydraulic cylinders 3. The first clamping blocks 5 are respectively installed on the opposite surfaces of the two first support plates 4, and the two first clamping blocks 5 and the first support plates 4 are detachably installed by bolts. The second C-shaped plate 6 is located above the first C-shaped plate 2 and also surrounds the pile accommodated by the notch. The second hydraulic cylinders 7 are respectively installed on the opposite side walls of the second C-shaped plate 6, and the two second hydraulic cylinders 7 are distributed oppositely and are both used to provide driving force. The second support plates 8 are respectively installed on the moving ends of the two second hydraulic cylinders 7, and the planes where the two second support plates 8 are located are parallel to each other and move towards or away from each other under the drive of the two second hydraulic cylinders 7. The second clamping blocks 9 are respectively installed on the opposite surfaces of the two second support plates 8, and the two second clamping blocks 9 and the second support plates 8 are also detachably installed by bolts. The vertical plate 10 is connected to the top surface of the first support plate 4 and is located outside the first C-shaped plate 2 for supporting and installing the third hydraulic cylinder 11. The third hydraulic cylinder 11 is installed on the vertical plate 10 for providing driving force. The moving end of the third hydraulic cylinder 11 faces the bottom plate 1 and is connected to the second C-shaped plate 6, and the second C-shaped plate 6 moves closer to or away from the bottom plate 1 under the drive of the third hydraulic cylinder 11.

[0044] The disclosed embodiment provides a pile pulling device for water conservancy projects. By controlling the first hydraulic cylinders 3 on both sides to work, the first support plates 4 on both sides can be driven to move toward or in the same direction, and finally the distance between the first clamping blocks 5 on both sides can be changed, thereby clamping or loosening the pile. By controlling the second hydraulic cylinders 7 on both sides to work, the second support plates 8 on both sides can be driven to move toward or in the same direction, and finally the distance between the second clamping blocks 9 on both sides can be changed, thereby clamping or loosening the pile. By controlling the third hydraulic cylinder 11 to work, the second shaped plate 6 can be driven to approach or move away from the bottom plate 1, and finally the second clamping blocks 9 on both sides can be driven to approach or move away from the bottom plate 1. When the moving end of the third hydraulic cylinder 11 is fully extended and the first clamping blocks 5 on both sides and the second clamping blocks 9 on both sides respectively release and clamp the pile, the moving end of the third hydraulic cylinder 11 is controlled to be fully retracted, and a pile pulling can be completed. Then, the first clamping blocks 5 on both sides and the second clamping blocks 9 on both sides are respectively clamped and loosened, and the moving end of the third hydraulic cylinder 11 can be controlled to be fully extended again, and the first clamping blocks 5 on both sides and the second clamping blocks 9 on both sides are respectively released and clamped again, and the pile pulling can be performed again. Therefore, by controlling the third hydraulic cylinder 11, the second hydraulic cylinders 7 on both sides and the first hydraulic cylinders 3 on both sides to work alternately, pile pulling can be performed repeatedly, so that it is suitable for pile pulling work with different pile lengths.

[0045] Optionally, it also includes a first rotating shaft 12, a first gear 13 and a first rack 14. The first rotating shaft 12 is rotatably mounted on the side wall of the first shaped plate 2, and the axis of the first rotating shaft 12 is perpendicular to the axis of the moving end of the first hydraulic cylinder 3 on both sides, and is used to support and install the first gear 13. The first gear 13 is mounted on the first rotating shaft 12 and can rotate freely under the support of the first rotating shaft 12. The first rack 14 is respectively mounted on the opposite surfaces of the first support plates 4 on both sides, and both are meshed with the first gear 13. The first racks 14 on both sides are symmetrically distributed in the center, and are used to transmit driving force and convert rotational motion into linear motion.

[0046] In the disclosed embodiment, when the first gear 13 rotates, the first racks 14 on both sides can move synchronously toward or in opposite directions through the meshing action between the teeth, thereby driving the first support plates 4 on both sides to move synchronously toward or in opposite directions, and finally driving the first clamping blocks 5 on both sides to move synchronously toward or in opposite directions, so as to clamp or release the pile at the same time.

[0047] Optionally, it further includes a first bearing seat 15 and a first bearing. The first bearing seat 15 is installed on the side wall of the first molded plate 2 and is sleeved on the first rotating shaft 12. The first bearing is installed between the first bearing seat 15 and the first rotating shaft 12.

[0048] In the disclosed embodiment, the first bearing seat 15 is installed on the side wall of the first molded plate 2 to support and install the first bearing and limit the first bearing. The first bearing is used to support and install the rotatable first shaft 12, reduce the friction force on the first shaft 12, and improve the rotation accuracy of the first shaft 12.

[0049] Optionally, it also includes a second rotating shaft 16, a second gear 17 and a second rack 18. The second rotating shaft 16 is rotatably mounted on the side wall of the second shaped plate 6, and the axis of the second rotating shaft 16 is perpendicular to the axis of the moving end of the second hydraulic cylinder 7 on both sides, and is used to support and install the second gear 17. The second gear 17 is mounted on the second rotating shaft 16 and can rotate freely under the support of the second rotating shaft 16. The second rack 18 is respectively mounted on the opposite surfaces of the second support plates 8 on both sides, and both are meshed with the second gear 17. The second racks 18 on both sides are symmetrically distributed in the center, and are used to transmit driving force and convert rotational motion into linear motion.

[0050] In the disclosed embodiment, when the second gear 17 rotates, the second racks 18 on both sides can move synchronously toward or in opposite directions through the meshing action between the teeth, thereby driving the second support plates 8 on both sides to move synchronously toward or in opposite directions, and finally driving the second clamping blocks 9 on both sides to move synchronously toward or in opposite directions, so as to clamp or release the pile at the same time.

[0051] Optionally, a second bearing seat 19 and a second bearing are further included. The second bearing seat 19 is mounted on the side wall of the second profile plate 6 and sleeved on the second rotating shaft 16. The second bearing is mounted between the second bearing seat 19 and the second rotating shaft 16.

[0052] In the disclosed embodiment, the second bearing seat 19 is installed on the side wall of the second shaped plate 6 to support and install the second bearing and limit the second bearing. The second bearing is used to support and install the rotatable second shaft 16, reduce the friction force on the second shaft 16, and improve the rotation accuracy of the second shaft 16.

[0053] Optionally, it also includes a first optical axis 20 and a first linear bearing. The first optical axis 20 is respectively arranged on the two opposite side walls of the first molded plate 2, and the first optical axes 20 on both sides are respectively connected to the first support plates 4 on both sides. The first linear bearings are respectively mounted on the first optical axes 20 on both sides, and are both installed on the outer wall of the first molded plate 2.

[0054] In the disclosed embodiment, the first optical axes 20 on both sides and the first linear bearings on both sides jointly play a guiding and supporting role to improve the stability of the first support plates 4 on both sides when moving and reduce the radial force on the moving ends of the first hydraulic cylinders 3 on both sides.

[0055] Optionally, it also includes a second optical axis 21 and a second linear bearing. The second optical axis 21 is respectively arranged on the two opposite side walls of the second molded plate 6, and the second optical axes 21 on both sides are respectively connected to the second support plates 8 on both sides. The second linear bearings are respectively sleeved on the second optical axes 21 on both sides, and are both installed on the outer wall of the second molded plate 6.

[0056] In the embodiments of the present disclosure, the second optical axes 21 on both sides and the second linear bearings on both sides jointly play a role in guiding and supporting, so as to improve the stability of the movement of the second support plates 8 on both sides and reduce the radial force received by the moving ends of the second hydraulic cylinders 7 on both sides.

[0057] Optionally, it further includes a guide rail 22 and a slider 23. The guide rail 22 is installed on the vertical plate 10 along the movement direction of the moving end of the third hydraulic cylinder 11. The slider 23 is installed on the guide rail 22 and is connected to the second C-shaped plate 6.

[0058] In the embodiments of the present disclosure, the guide rail 22 and the slider 23 are used to play a role in guiding and supporting, so as to improve the stability of the movement of the second C-shaped plate 6 and reduce the radial force received by the moving end of the third hydraulic cylinder 11.

[0059] Optionally, it further includes a hydraulic cylinder support. The hydraulic cylinder support is installed on the vertical plate 10, and the third hydraulic cylinder 11 is installed on the hydraulic cylinder support.

[0060] In the embodiments of the present disclosure, the hydraulic cylinder support is used to support and install the third hydraulic cylinder 11, so as to facilitate the disassembly and maintenance of the third hydraulic cylinder 11.

[0061] Optionally, it further includes a fourth hydraulic cylinder 24, a third C-shaped plate 25, a V-shaped roller 26, a first sprocket, and a first chain 27. The fourth hydraulic cylinders 24 are respectively installed on the opposite side walls of the second C-shaped plate 6. The second hydraulic cylinders 7 on both sides are distributed relatively and are respectively located above the two second hydraulic cylinders 7. The two fourth hydraulic cylinders 24 are both used to provide driving force to achieve the function of moving towards or away from each other. The third C-shaped plates 25 are respectively installed on the moving ends of the fourth hydraulic cylinders 24 on both sides. The third C-shaped plates 25 on both sides are distributed relatively and move towards or away from each other under the drive of the fourth hydraulic cylinders 24 on both sides. The V-shaped rollers 26 are respectively rotatably installed on the opposite side walls of the third C-shaped plates 25 on both sides and are evenly distributed on each side of the third C-shaped plate 25 along the movement direction of the moving end of the third hydraulic cylinder 11. The multiple V-shaped rollers 26 on both sides can respectively rotate relative to the third C-shaped plates 25 on both sides. The first sprockets are respectively installed on the multiple V-shaped rollers 26 on both sides and are respectively located outside the third C-shaped plates 25 on both sides. The multiple first sprockets on both sides move synchronously with the two multiple V-shaped rollers 26. The first chains 27 are respectively sleeved on two adjacent first sprockets on the same side and are respectively used to transmit the driving force. Among them, two of the multiple V-shaped rollers 26 on both sides are controlled to rotate in the reverse direction, so that the multiple V-shaped rollers 26 on both sides rotate in the reverse direction.

[0062] In the embodiments of the present disclosure, by controlling the operation of the fourth hydraulic cylinders 24 on both sides, the third C-shaped plates 25 on both sides can be driven to move towards each other. Finally, multiple V-shaped rollers 26 on both sides are driven to move towards each other until they abut against the pile wall. Then, after two of the multiple V-shaped rollers 26 on both sides are driven by an external force to rotate in opposite directions, the two first sprockets connected thereto can be driven to rotate in opposite directions. Through the multiple first chains 27 on both sides, the rest of the multiple first sprockets on both sides can be driven to rotate in opposite directions, and then the rest of the multiple V-shaped rollers 26 on both sides can be driven to rotate in opposite directions. Therefore, when the pulling force required to loosen the pile is small, the pile can be continuously pulled out by driving the multiple V-shaped rollers 26 on both sides to rotate in opposite directions, further improving the pile pulling speed. At the same time, by controlling the operation of the third hydraulic cylinder 11, the second C-shaped plate 6 can be made to abut against the first C-shaped plate 2, so that the reaction force during pile pulling is directly transmitted from the bottom plate 1 to the ground, reducing the force on the moving end of the third hydraulic cylinder 11.

[0063] Optionally, it further includes first pedestal bearings 28, spline sleeves 29, first bevel gears 30, second bevel gears 31, spline shafts 32 and second pedestal bearings 33. The first pedestal bearings 28 are respectively installed on the outer walls of the third C-shaped plates 25 on both sides, and are respectively used to support and install the spline sleeves 29. The spline sleeves 29 are respectively installed on the first pedestal bearings 28 on both sides. The axes of the spline sleeves 29 on both sides coincide with each other and are perpendicular to the axes of the multiple V-shaped rollers 26 on both sides, and are used to support and install the first bevel gears 30 and the spline shafts 32. The first bevel gears 30 are respectively installed on the outer walls of the spline sleeves 29 on both sides and rotate synchronously with the spline sleeves 29 on both sides. The second bevel gears 31 are respectively meshed with the first bevel gears 30 on both sides. The second bevel gears 31 on both sides and the first bevel gears 30 on both sides jointly transmit the driving force and change the direction of the force. The second bevel gears 31 on both sides are respectively installed on two of the multiple V-shaped rollers 26 on both sides, and are respectively used to drive two of the multiple V-shaped rollers 26 on both sides to rotate. The spline shafts 32 pass through the spline sleeves 29 on both sides and are used to drive the spline sleeves 29 on both sides to rotate synchronously. And, since the spline sleeves 29 on both sides can slide relative to the spline shafts 32, there is no interference when the third C-shaped plates 25 on both sides move towards or away from each other. The second pedestal bearings 33 are sleeved on the spline shafts 32 and are installed on the vertical plates 10, so that the spline shafts 32 can only rotate around their own axes. Among them, the spline shafts 32 can be controlled to rotate so that two of the multiple V-shaped rollers 26 on both sides rotate in opposite directions.

[0064] In the embodiments of the present disclosure, after the spline shafts 32 are driven by an external force to rotate, the spline sleeves 29 on both sides can be driven to rotate, and then the two first bevel gears 30 can be driven to rotate. Through the meshing between teeth, the second bevel gears 31 on both sides can be driven to rotate, and then two of the multiple V-shaped rollers 26 on both sides can be driven to rotate, finally realizing the function of the multiple V-shaped rollers 26 on both sides rotating in opposite directions. Compared with the method of respectively driving two of the multiple V-shaped rollers 26 on both sides to rotate, the number of power sources is reduced.

[0065] Optionally, it further includes a worm and worm gear reducer 34, a second sprocket, a third sprocket, a second chain 35, and a motor 36. The worm and worm gear reducer 34 is installed on the vertical plate 10. The axis of the output end of the worm and worm gear reducer is parallel to the axis of the spline shaft 32, which is used to reduce the rotational speed and has a self-locking function. The second sprocket is installed on the output end of the worm and worm gear reducer and rotates driven by the output end of the worm and worm gear reducer. The third sprocket is installed on the spline shaft 32 and is used to drive the spline shaft 32 to rotate. The second chain 35 is sleeved on the third sprocket and the second sprocket and is used to transmit the driving force. The motor 36 is installed at the input end of the reducer and is used to provide the driving force.

[0066] In the embodiment of the present disclosure, when the motor 36 is controlled to work, the second sprocket can be driven through the worm and worm gear reducer 34. Through the second chain 35, the spline shaft 32 can be driven to rotate, and finally the function of automatically and reversely rotating multiple V-shaped rollers 26 on both sides is realized.

[0067] Optionally, it further includes a third optical axis 37 and a third linear bearing. The third optical axis 37 respectively penetrates through the opposite side walls of the second C-shaped plate 6, and the two sides of the third optical axis 37 are respectively connected to the two sides of the third C-shaped plate 25. The third linear bearings are respectively sleeved on the two sides of the third optical axis 37 and are respectively installed on the outer walls of the two sides of the third C-shaped plate 25.

[0068] In the embodiment of the present disclosure, the two sides of the third optical axis 37 and the two sides of the third linear bearing together play a role of guiding and supporting, so as to improve the stability of the movement of the two sides of the third C-shaped plate 25 and reduce the radial force received by the moving ends of the two sides of the fourth hydraulic cylinder 24.

[0069] Optionally, it further includes a third pillow block bearing. The third pillow block bearings are respectively sleeved on multiple V-shaped rollers 26 on both sides and are respectively installed on the opposite side walls of the two sides of the third C-shaped plate 25.

[0070] In the embodiment of the present disclosure, the third pillow block bearings are used to reduce the friction between multiple V-shaped rollers 26 on both sides and the opposite side walls of the two sides of the third C-shaped plate 25, and improve the accuracy when multiple V-shaped rollers 26 on both sides rotate relative to the opposite side walls of the two sides of the third C-shaped plate 25.

[0071] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A pile pulling device for water conservancy projects, characterized in that: Including: A bottom plate, the bottom plate including a notch; A first C-shaped plate, connected to the top surface of the bottom plate; First hydraulic cylinders, respectively installed on opposite side walls of the first C-shaped plate, the two first hydraulic cylinders being distributed oppositely; First support plates, respectively installed on the moving ends of the two first hydraulic cylinders, the planes where the two first support plates are located being parallel to each other; First clamping blocks, respectively installed on the opposite faces of the two first support plates; A second C-shaped plate, located above the first C-shaped plate; Second hydraulic cylinders, respectively installed on opposite side walls of the second C-shaped plate, the two second hydraulic cylinders being distributed oppositely; Second support plates, respectively installed on the moving ends of the two second hydraulic cylinders, the planes where the two second support plates are located being parallel to each other; Second clamping blocks, respectively installed on the opposite faces of the two second support plates; A vertical plate, connected to the top surface of the first support plate and located outside the first C-shaped plate; A third hydraulic cylinder, installed on the vertical plate, the moving end of the third hydraulic cylinder facing the bottom plate and connected to the second C-shaped plate.

2. A pile pulling device for water conservancy engineering according to claim 1, characterized in that: It further includes: A first rotating shaft, rotatably installed on the side wall of the first C-shaped plate, the axis of the first rotating shaft being perpendicular to the axes of the moving ends of the two first hydraulic cylinders; A first gear, installed on the first rotating shaft; First racks, respectively installed on the opposite faces of the two first support plates and both meshing with the first gear, the two first racks being centrosymmetrically distributed.

3. The pile pulling device for water conservancy projects according to claim 1 is characterized in that: It further includes: A second rotating shaft, rotatably installed on the side wall of the second C-shaped plate, the axis of the second rotating shaft being perpendicular to the axes of the moving ends of the two second hydraulic cylinders; A second gear, installed on the second rotating shaft; Second racks, respectively installed on the opposite faces of the two second support plates and both meshing with the second gear, the two second racks being centrosymmetrically distributed.

4. A pile pulling device for water conservancy engineering according to claim 1, characterized in that: It further includes: First optical axes, respectively passing through opposite side walls of the first C-shaped plate, the two first optical axes being respectively connected to the two first support plates; First linear bearings, respectively sleeved on the two first optical axes and both installed on the outer wall of the first C-shaped plate.

5. A pile pulling device for water conservancy engineering according to claim 1, characterized in that: It further includes: Second optical axes, respectively passing through opposite side walls of the second C-shaped plate, the two second optical axes being respectively connected to the two second support plates; Second linear bearings, respectively sleeved on the two second optical axes and both installed on the outer wall of the second C-shaped plate.

6. A pile pulling device for water conservancy engineering according to claim 1, characterized in that: It further includes: A guide rail, installed on the vertical plate along the movement direction of the moving end of the third hydraulic cylinder; A slider, installed on the guide rail and connected to the second C-shaped plate.

7. A pile pulling device for water conservancy engineering according to any one of claims 1 to 6, characterized in that: It further includes: Fourth hydraulic cylinders, respectively installed on opposite side walls of the second C-shaped plate, the two second hydraulic cylinders being distributed oppositely and respectively located above the two second hydraulic cylinders; Third C-shaped plates, respectively installed on the moving ends of the two fourth hydraulic cylinders, the two third C-shaped plates being distributed oppositely; V-shaped rollers, respectively rotatably installed on opposite side walls of the two third C-shaped plates and evenly distributed on each side of the third C-shaped plate along the movement direction of the moving end of the third hydraulic cylinder. The first sprocket wheels are respectively installed on multiple V-shaped rollers on both sides and are respectively located outside the third C-shaped plates on both sides; The first chains are respectively sleeved on two adjacent first sprocket wheels on the same side. Among them, two of the multiple V-shaped rollers on both sides are controlled to rotate in opposite directions so that the multiple V-shaped rollers on both sides rotate in opposite directions.

8. A pile pulling device for water conservancy engineering according to claim 7, characterized in that: It further includes: The first pillow block bearings are respectively installed on the outer walls of the third C-shaped plates on both sides; The spline sleeves are respectively installed on the first pillow block bearings on both sides. The axes of the spline sleeves on both sides coincide with each other and are perpendicular to the axes of the multiple V-shaped rollers on both sides; The first bevel gears are respectively installed on the outer walls of the spline sleeves on both sides; The second bevel gears are respectively meshed with the first bevel gears on both sides and are respectively installed on two of the multiple V-shaped rollers on both sides; The spline shaft passes through the spline sleeves on both sides; The second pillow block bearing is sleeved on the spline shaft and is installed on the vertical plate. Among them, the spline shaft can be controlled to rotate so that two of the multiple V-shaped rollers on both sides rotate in opposite directions.

9. A pile pulling device for water conservancy engineering according to claim 8, characterized in that: It further includes: The worm and gear reducer is installed on the vertical plate. The axis of the output end of the worm and gear reducer is parallel to the axis of the spline shaft; The second sprocket wheel is installed on the output end of the worm and gear reducer; The third sprocket wheel is installed on the spline shaft; The second chain is sleeved on the third sprocket wheel and the second sprocket wheel; The motor is installed on the input end of the reducer.

10. A pile pulling device for water conservancy engineering according to claim 7, characterized in that: It further includes: The third optical axes respectively pass through the opposite side walls of the second C-shaped plate. The third optical axes on both sides are respectively connected to the third C-shaped plates on both sides; The third linear bearings are respectively sleeved on the third optical axes on both sides and are respectively installed on the outer walls of the third C-shaped plates on both sides.

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