Movable vertical pile driver

Abstract

The utility model belongs to the technical field of pile foundation equipment, and discloses a movable type vertical pile driver which comprises a vertical pile driving device and a walking device, and the vertical pile driving device comprises two hammer lifting oil cylinders, a hydraulic system, a pile holding frame, a lifting oil cylinder, a hammer core, four pile clamping oil cylinders, a rotary oil cylinder, a striking plate, a pile clamping plate and a PLC. The walking device is a crawler excavator, and the crawler excavator comprises an excavator body, an excavator movable arm, an excavator movable arm oil cylinder, an excavator bucket rod, an excavator bucket rod oil cylinder and an excavator crawler belt. Through multi-aspect structural improvement design and the adoption of a connecting and supporting structure of a crawler-type engineering vehicle, the moving freedom is improved, the terrain limitation of a construction site can be overcome, the piling construction operation can be completed, the moving and piling speed of the piling machine is remarkably increased, the construction period is shortened, and the overall construction efficiency is improved; and by improving key components such as the lifting oil cylinder and the pile clamping oil cylinder, the stability and the reliability of the pile driver in the operation process are obviously enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundation equipment, in particular to a mobile vertical pile driver. Background Art

[0002] Currently, pile foundation construction equipment is frequently used in building construction. Existing pile foundation construction equipment often uses fixed pile drivers. During construction, the fixed pile foundation must be leveled and the vertical angle of the fixed pile driver adjusted. This is a time-consuming and labor-intensive installation process, and the machine also suffers from poor stability. Fixed pile drivers are also inconvenient to move around the site, requiring a trailer or crane. Construction on a undulating site also requires site leveling, which lengthens the construction period.

[0003] To address the aforementioned technical issues, Chinese utility model patent CN221702403U discloses a construction piling device comprising a pile driver and a fixed plate. The fixed plate has a support assembly disposed on top, the pile driver being mounted on the support assembly. Two base plates are symmetrically disposed below the fixed plate, each having a guide rail fixedly mounted on top. Two lifting assemblies are disposed within the guide rails. The fixed plate is fixedly connected to the four lifting assemblies. Each lifting assembly is provided with two movable wheels disposed within the guide rails on its front and rear sides. Each lifting assembly is provided with baffles on its left and right sides, which slide in engagement with the inner walls of the guide rails. The top of the guide rails extends inward to block the baffles. A movable assembly is disposed at the bottom of the fixed plate. While this patented technical solution enables flexible movement across different construction areas, enhances the stability of the equipment, and prevents wheel failures caused by entanglement, it still fails to address issues such as rapid installation, construction, and on-site transfer within uneven, large sites, nor does it address the problem of rapidly adjusting the verticality of the piles.

[0004] In summary, the existing technical solutions cannot solve the technical problems of pile drivers having high requirements for terrain, rapid transfer, fast adjustment of pile verticality, safe and efficient pile driving operations, etc. Utility Model Content

[0005] In view of the shortcomings of the above-mentioned technologies, the purpose of the present invention is to provide a mobile vertical pile driver, which improves the overall freedom of movement by improving the structural design of the pile driver in many aspects, so that it can support a new mobile and fast vertical pile driving operation method to solve the above-mentioned technical problems.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A mobile vertical pile driver, comprising: a vertical pile driving device and a traveling device, wherein the vertical pile driving device comprises two hammer cylinders, a hydraulic system, a pile holding frame, a lifting cylinder, a hammer core, four pile clamping cylinders, a rotary cylinder, a striking plate, a pile clamping plate, and a PLC controller; the hydraulic system is connected to the two hammer cylinders, the lifting cylinder, the rotary cylinder, and the pile clamping cylinder respectively through hydraulic oil pipes; the hammer core is arranged on the pile holding frame, a striking plate is arranged below the hammer core, and four pile clamping cylinders are arranged below the striking plate, each pile clamping cylinder being connected to the pile clamping plate and the pile holding frame respectively; the PLC controller is electrically connected to the hydraulic system;

[0008] The walking device is a crawler excavator, which includes an excavator body, an excavator boom, an excavator boom cylinder, an excavator bucket arm, an excavator bucket arm cylinder, and an excavator track. The excavator body is movably connected to the excavator boom, the excavator boom cylinder, and the excavator track respectively; one end of the excavator bucket arm cylinder and the excavator track is connected to the excavator boom, and the other end is movably connected to the vertical piling device.

[0009] Furthermore, the vertical piling device further comprises: a top cover, the top cover is fixed on the pile holding frame, and the two hammer cylinders are respectively fixed at both ends of the top cover.

[0010] Furthermore, an inner guide rail is provided in the pile holding frame, and the hammer core is arranged in the pile holding frame along the inner guide rail.

[0011] The beneficial effects of the utility model are:

[0012] 1. The mobile vertical pile driver provided by the utility model has improved structural design in many aspects and adopts the connection and support structure of a crawler engineering vehicle, which improves the freedom of movement of the entire equipment, can overcome the terrain restrictions of the construction site to complete the piling construction operation, significantly accelerate the movement and piling speed of the pile driver, shorten the construction period, and improve the overall construction efficiency; it can better solve the technical problems of the pile driver's high requirements for terrain, rapid transfer, fast adjustment of the verticality of piling, safe and efficient piling construction, etc.

[0013] 2. The mobile vertical pile driver provided by the present invention can significantly accelerate the piling speed through various structural improvements and modular design, thereby shortening the construction period and improving the overall construction efficiency; by adopting the connection and support structure of a crawler engineering vehicle, it can overcome the terrain restrictions of the construction site, move with a high degree of freedom, and efficiently complete the piling construction work, while also ensuring precise construction and the safety of the pile driver itself; through improved key components such as the lifting cylinder and the pile clamping cylinder, the stability and reliability of the pile driver during operation are significantly enhanced.

[0014] 3. The mobile vertical pile driver of the utility model can effectively control the verticality during operation through the synergistic effect of the excavator arm and the rotary cylinder, through precise coordination, to ensure the accuracy of pile driving. Compared with the verticality adjustment method controlled by multiple cylinders, this technical solution greatly simplifies the operation process and reduces the control difficulty, thereby performing high-precision and high-quality piling operations.

[0015] 4. The mobile vertical pile driver of the utility model has undergone many structural improvements. The actions of lifting the hammer, clamping the pile, and lifting are all controlled by the hydraulic system, which makes the actions smooth, reliable and safe. These improvements enable the pile driver to better adapt to various complex terrains and working conditions, reduce the construction risks caused by shaking or tilting, and thus improve the construction quality and safety.

[0016] 5. The mobile vertical pile driver of the present invention has enhanced pile clamping force by setting four pile clamping cylinders. The pile driver can ensure that the pile is firmly clamped when clamping the pile, and prevent the pile from slipping or loosening during the driving process. This not only improves the accuracy of piling, but also reduces construction risks, making the operation of the pile driver simpler and faster; it not only reduces the difficulty and complexity of operation, but also improves construction efficiency and quality.

[0017] 6. The mobile vertical pile driver of the utility model adopts modular design and utilizes the existing crawler excavator. The improved limit pin can effectively control the piling depth to avoid safety accidents caused by excessive piling; the piston rod washer and buffer pad can absorb the impact force and reduce damage to the equipment itself; compared with the existing fixed pile drivers that require frequent lifting, the failure rate is greatly reduced, which not only reduces the number of maintenance and maintenance costs, but also improves the utilization rate and overall performance of the equipment.

[0018] 7. The mobile vertical pile driver of the present invention can maintain high stability during operation, which helps to achieve effective control of verticality and ensure the accuracy of pile driving. The crawler pile driver has excellent mobility and can quickly transfer the work location to adapt to the needs of different construction areas, thereby improving overall construction efficiency, shortening construction period, reducing construction costs, and reducing construction risks caused by shaking or tilting.

[0019] In order to more clearly illustrate the structural features and effects of the present invention, it is described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure shows a schematic diagram of the three-dimensional structure of the mobile vertical pile driver in the working state according to the embodiment of the present utility model;

[0021] Figure 2 The figure shows a schematic diagram of the main structure of the mobile vertical pile driver according to an embodiment of the present utility model;

[0022] Figure 3 Shown is a left-side structural schematic diagram of a mobile vertical pile driver according to an embodiment of the present utility model;

[0023] Figure 4 Shown is a right side structural schematic diagram of a mobile vertical pile driver according to an embodiment of the present utility model;

[0024] Figure 5 Shown is a schematic top view of the structure of a mobile vertical pile driver according to an embodiment of the present utility model;

[0025] Figure 6 Shown is a bottom view of the structure of a mobile vertical pile driver according to an embodiment of the present invention;

[0026] Figure 7 Shown Figure 5 Schematic diagram of the structure with a cross section at BB in the middle and rotated 90 degrees counterclockwise.

[0027] In the figure: 1. Vertical piling device; 101. Hammer lifting cylinder; 102. Hydraulic system; 103. Top cover; 104. Pile holding frame; 105. Lifting cylinder; 106. Limit pin; 107. Rotating frame; 108. Boom connecting frame; 109. Hammer core; 110. Pin A; 111. Pile clamping cylinder; 112. Rotating cylinder; 113. Pin B; 114. Piston rod washer; 115. Buffer pad; 116. Lock nut; 117. Strike plate; 118. Wire rope; 119. Pile clamping plate; 120. Pin C; 2. Travel device; 201. Excavator body; 202. Excavator boom; 203. Excavator boom cylinder; 204. Excavator arm; 205. Excavator arm cylinder; 206. Excavator track. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example

[0030] Please see the attached Figures 1 to 7The mobile vertical pile driver provided in this embodiment is an improved design mainly to overcome the problems of insufficient freedom of movement and difficulty in adjusting the verticality of pile driving in existing equipment. It includes: a vertical pile driving device 1 and a walking device 2. The vertical pile driving device 1 includes two hammer cylinders 101, a hydraulic system 102, a pile holding frame 104, a lifting cylinder 105, a hammer core 109, four pile clamping cylinders 111, a rotary cylinder 112, a striking plate 117, a pile clamping plate 119, and a PLC controller. The hydraulic system 102 is connected to the two hammer cylinders 101, the lifting cylinder 105, the rotary cylinder 112, and the pile clamping cylinder 111 through hydraulic oil pipes; the hammer core 109 is provided on the pile holding frame 104, and a striking plate 117 is provided below the hammer core 109. Four pile clamping cylinders 111 are provided below the striking plate 117, and each pile clamping cylinder 111 is respectively connected to the pile clamping plate 119 and the pile holding frame 104; the PLC controller is electrically connected to the hydraulic system 102;

[0031] See also Figure 2 The walking device 2 is a crawler excavator, which includes an excavator body 201, an excavator boom 202, an excavator boom cylinder 203, an excavator bucket arm 204, an excavator bucket arm cylinder 205, and an excavator crawler 206. The excavator body 201 is movably connected to the excavator boom 202, the excavator boom cylinder 203, and the excavator crawler 206 respectively; one end of the excavator bucket arm cylinder 205 and the excavator crawler 206 is connected to the excavator boom 202, and the other end is movably connected to the vertical piling device 1.

[0032] In other preferred embodiments, see Figure 7 The vertical piling device 1 further includes: a top cover 103 , which is fixed on the pile holding frame 104 , and the two hammer cylinders 101 are respectively fixed on both ends of the top cover 103 .

[0033] In other preferred embodiments, see Figure 7 An inner guide rail is provided in the pile holding frame 104 , and the hammer core 109 is provided in the pile holding frame 104 along the inner guide rail.

[0034] In other preferred embodiments, the vertical piling device 1 further includes a steel wire rope 118 , one end of which is fixedly connected to the side of the pile holding frame 104 , and the other end is fixed to the striking plate 117 ; the steel wire rope 118 is symmetrically arranged in two pieces.

[0035] In other preferred embodiments, the vertical piling device 1 also includes a piston rod washer 114, a buffer pad 115, and a locking nut 116. The piston rod washer 114 and the buffer pad 115 are arranged in sequence and pass through the piston rod of the hammer cylinder 101. The piston rod washer 114 and the buffer pad 115 are fixedly connected by the locking nut 116.

[0036] In other preferred embodiments, the vertical piling device 1 further includes a pin A110 and a pin C120, the pile clamping cylinder 111 is connected to the pile holding frame 104 via the pin A110, and the pile clamping plate 119, the pile clamping cylinder 111, and the pile holding frame 104 are connected via the pin C120.

[0037] In other preferred embodiments, the vertical piling device 1 further includes a slewing frame 107 ; an outer guide rail is provided on one side of the pile holding frame 104 , the slewing frame 107 is arranged along the outer guide rail of the pile holding frame 104 , and the lifting cylinder 105 is fixedly arranged on the slewing frame 107 .

[0038] In other preferred embodiments, the vertical piling device 1 also includes a boom connecting frame 108, a limit pin 106, and a pin shaft B113; one end of the boom connecting frame 108 is fixedly connected to the slewing frame 107, and the other end is movably connected to the excavator boom 202; the limit pin 106 is fixedly connected to one end of the boom connecting frame 108; the slewing cylinder 112, the boom connecting frame 108, and the slewing frame 107 are fixedly connected via the pin shaft B113.

[0039] See also Figures 1 to 7 , the working process and principle of the embodiment of the utility model are as follows:

[0040] (1) Pile clamping and positioning:

[0041] Driven by the hydraulic system 102, the four pile-clamping cylinders 111 are connected to the pile-holding frame 104 via the pin A110 and simultaneously cooperate with the pile-clamping plates 119 to securely clamp the pile to be driven within the pile-holding frame 104. The pile-holding frame 104 is provided with an inner guide rail, along which the hammer core 109 moves up and down, ensuring stability and accuracy during the hammering process.

[0042] (2) Lifting the hammer and striking:

[0043] Two hammer lifting cylinders 101 are fixed to both ends of the pile holding frame 104 through a top cover 103 , and under the control of a hydraulic system 102 , lift the hammer core 109 to a certain height.

[0044] When the hammer core 109 falls, it will impact the striking plate 117, and the striking plate 117 will then transmit the impact force to the clamped pile through the wire rope 118 (as a safety and auxiliary striking component) and the pile clamping plate 119.

[0045] The steel wire ropes 118 are symmetrically arranged in two pieces to increase the stability of the striking plate 117 and prevent it from deflecting during the hammering process.

[0046] (3) Lifting and adjustment:

[0047] The lifting cylinder 105 is connected to the pile holding frame 104 through the slewing frame 107, and is used to lift the pile holding frame 104 and the pile thereon to a certain height when necessary, so as to adjust the verticality and change the position of the pile clamp.

[0048] The rotary cylinder 112 is used to drive the rotary frame 107 (and the pile holding frame 104) to rotate around the excavator boom 202, thereby changing the pile holding position to enable the pile driver to operate at different pile pole positions.

[0049] (4) Flexible walking:

[0050] The traveling device is a crawler excavator, including an excavator body 201 , an excavator boom 202 , an excavator boom cylinder 203 , an excavator arm 204 , an excavator arm cylinder 205 and an excavator crawler track 206 .

[0051] The excavator body 201 is movably connected to the excavator boom 202, the excavator boom cylinder 203, and the excavator crawler 206, respectively, so that the pile driver can move flexibly on complex terrain.

[0052] One end of the excavator arm cylinder 205 and the excavator crawler 206 is connected to the excavator boom 202, and the other end is movably connected to the vertical piling device 1, so as to maintain the stability and accuracy of the vertical piling device during movement.

[0053] The mobile vertical pile driver provided by the embodiment of the present invention can significantly accelerate the pile driving speed through various structural improvements and modular design, thereby shortening the construction period and improving the overall construction efficiency; by adopting the connection and support structure of a crawler engineering vehicle, it overcomes the terrain restrictions of the construction site, has a high degree of freedom of movement, and can complete pile driving construction operations under various different terrains; at the same time, it can ensure precise construction and the safety of the pile driver itself; through improved key components such as the lifting cylinder and the pile clamping cylinder, the stability and reliability of the pile driver during operation are significantly enhanced.

[0054] The mobile vertical pile driver of the present invention utilizes the synergistic effect of the excavator's boom and the rotary cylinder, and through precise coordination, effectively controls verticality during operation, ensuring pile driving accuracy. Compared to verticality adjustment methods controlled by multiple cylinders, this technical solution greatly simplifies the operation process and reduces control difficulty, thereby enabling high-precision, high-quality piling operations. The mobile vertical pile driver of the present invention utilizes a hydraulic system to control hammer lifting, pile clamping, and lifting, resulting in smooth, reliable operation and high safety. These optimizations enable the pile driver to better adapt to various complex terrains and working conditions, reduce construction risks caused by shaking or tilting, and thus improve construction quality and safety.

[0055] The mobile vertical pile driver of the embodiment of the present utility model has enhanced pile clamping force by providing four pile clamping cylinders. The pile driver can ensure that the pile is firmly clamped when clamping the pile, and prevent the pile from slipping or loosening during the driving process. This not only improves the accuracy of pile driving, but also reduces construction risks, making the operation of the pile driver simpler and faster. This not only reduces the difficulty and complexity of operation, but also improves construction efficiency and quality. The mobile vertical pile driver of the present utility model adopts a modular design and utilizes the existing crawler excavator. The limit pins provided can effectively control the pile driving depth to avoid safety accidents caused by excessive pile driving; the piston rod gasket and the buffer pad can absorb the impact force and reduce damage to the equipment itself; compared with the fixed pile drivers in the prior art that require frequent lifting, the failure rate is greatly reduced, which not only reduces the number of maintenance and maintenance costs, but also improves the utilization rate and overall performance of the equipment.

[0056] The mobile vertical pile driver of the embodiment of the present invention can maintain high stability during operation, which helps to achieve effective control of verticality and ensure the accuracy of pile driving. The crawler pile driver has excellent mobility and can quickly transfer the work location to adapt to the needs of different construction areas, thereby improving overall construction efficiency, shortening construction period, reducing construction costs, and reducing construction risks caused by shaking or tilting.

[0057] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any person skilled in the art can utilize the methods and technical content disclosed above to make many possible variations and modifications to the present invention without departing from the scope of the present invention, or modify it into equivalent embodiments with equivalent variations. Therefore, any equivalent variations based on the shape, structure, and principle of the present invention that do not depart from the content of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A mobile vertical pile driver, characterized in that: It includes: A vertical piling device (1) and a walking device (2), wherein the vertical piling device (1) comprises two hammer cylinders (101), a hydraulic system (102), a pile holding frame (104), a lifting cylinder (105), a hammer core (109), four pile clamping cylinders (111), a rotary cylinder (112), a striking plate (117), a pile clamping plate (119), and a PLC controller; the hydraulic system (102) is connected to the two hammer cylinders (101), the lifting cylinder (105), the hammer core (109), four pile clamping cylinders (111), a rotary cylinder (112), a striking plate (117), a pile clamping plate (119), and a PLC controller respectively through hydraulic oil pipes. The lifting cylinder (105), the rotating cylinder (112), and the pile clamping cylinder (111) are connected; the hammer core (109) is arranged on the pile holding frame (104); a striking plate (117) is arranged below the hammer core (109); four pile clamping cylinders (111) are arranged below the striking plate (117); each pile clamping cylinder (111) is respectively connected to the pile clamping plate (119) and the pile holding frame (104); the PLC controller is electrically connected to the hydraulic system (102).

2. The mobile vertical pile driver according to claim 1, characterized in that: The vertical piling device (1) further comprises a top cover (103), wherein the top cover (103) is fixed on the pile holding frame (104), and the two hammer cylinders (101) are respectively fixed on both ends of the top cover (103).

3. The mobile vertical pile driver according to claim 1, characterized in that: An inner guide rail is provided in the pile holding frame (104), and the hammer core (109) is provided in the pile holding frame (104) along the inner guide rail.

4. The mobile vertical pile driver according to claim 1, characterized in that: The vertical piling device (1) further comprises a steel wire rope (118), one end of the steel wire rope (118) being fixedly connected to the side of the pile holding frame (104), and the other end being fixed to the striking plate (117); the steel wire rope (118) is symmetrically arranged in two pieces.

5. The mobile vertical pile driver according to claim 1, characterized in that: The vertical piling device (1) further comprises a piston rod washer (114), a buffer pad (115), and a locking nut (116); the piston rod washer (114) and the buffer pad (115) are sequentially arranged and pass through the piston rod of the hammer cylinder (101); the piston rod washer (114) and the buffer pad (115) are fixedly connected via the locking nut (116).

6. The mobile vertical pile driver according to claim 1, characterized in that: The vertical piling device (1) further comprises a pin shaft A (110) and a pin shaft C (120); the pile clamping cylinder (111) is connected to the pile holding frame (104) via the pin shaft A (110); and the pile clamping plate (119), the pile clamping cylinder (111), and the pile holding frame (104) are connected via the pin shaft C (120).

7. The mobile vertical pile driver according to claim 1, characterized in that: The vertical piling device (1) further comprises a slewing frame (107); an outer guide rail is provided on one side of the exterior of the pile holding frame (104); the slewing frame (107) is arranged along the outer guide rail of the pile holding frame (104); and the lifting cylinder (105) is fixedly arranged on the slewing frame (107).

8. The mobile vertical pile driver according to claim 7, characterized in that: The vertical piling device (1) further comprises a boom connecting frame (108), a stop pin (106), and a pin shaft B (113); one end of the boom connecting frame (108) is fixedly connected to the slewing frame (107), and the other end is movably connected to the excavator boom (202); the stop pin (106) is fixedly connected to one end of the boom connecting frame (108); and the slewing oil cylinder (112), the boom connecting frame (108), and the slewing frame (107) are fixedly connected via the pin shaft B (113).

9. The mobile vertical pile driver according to claim 1, characterized in that: The walking device (2) is a crawler excavator, which comprises an excavator body (201), an excavator boom (202), an excavator boom cylinder (203), an excavator bucket rod (204), an excavator bucket rod cylinder (205), and an excavator crawler (206). The excavator body (201) is movably connected to the excavator boom (202), the excavator boom cylinder (203), and the excavator crawler (206), respectively; one end of the excavator bucket rod cylinder (205) and the excavator crawler (206) is connected to the excavator boom (202), and the other end is movably connected to the vertical piling device (1).

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