Urban low-noise vibration pile foundation construction equipment

Abstract

The present application relates to the technical field of engineering machinery, and especially relates to a low-noise and low-vibration piling foundation construction equipment for urban areas, which comprises a driving vehicle, an adjusting unit rotatably installed on the driving vehicle, and a damping fixing unit slidably installed on the adjusting unit. When the equipment is used for piling foundation construction, the clamping operation angle is first adjusted through the adjusting assembly, the connecting assembly is pushed by the driving vehicle to accurately clamp and position the pile, the pile penetrates through the damping assembly and the fixing assembly, the fixing assembly tightly holds the outer wall of the pile, and the damping assembly limits and constrains the pile, so that the perpendicularity and stability of the pile construction are ensured, then the pile that is limited is hit and driven into the ground by the piling assembly, when high-frequency vibration is generated during piling, the damping assembly and the fixing assembly can be self-adaptively and slidably adjusted on the basis of the connecting assembly, impact vibration is real-timely eliminated, the pile is flexibly buffered and protected, and a multidimensional integrated collaborative damping system is formed.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, and in particular to a low-noise vibration pile foundation construction equipment for urban areas. Background Technology

[0002] Pile foundations are an important basic structure for buildings and municipal engineering. Vibratory pile drivers are the core equipment in pile foundation construction. They rely on high-frequency vibration to drive the piles into the ground. They have the characteristics of high construction efficiency and wide site adaptability, and are widely used in various infrastructure projects.

[0003] The existing vibration damping components of vibratory pile drivers are scattered and lack an integrated and coordinated vibration damping structure. Multiple vibration paths at the excitation box, transmission components, pile clamps, and hoisting connections are not blocked synchronously. Single-point buffering is insufficient to reduce vibration across the entire area. Furthermore, the equipment cannot simultaneously protect the main unit, suppress vibration, and reduce noise. It can only rely on adding sound insulation and vibration isolation measures on-site, which increases procedures and construction costs. The noise reduction and vibration suppression effect is poor in narrow urban areas and sensitive areas. Summary of the Invention

[0004] In view of the problems existing in the current urban low-noise vibration pile foundation construction equipment, the present invention is proposed.

[0005] Therefore, the present invention provides a low-noise vibration pile foundation construction equipment for urban areas. Its purpose is to solve the problems of existing vibration pile drivers lacking an integrated and coordinated vibration reduction structure, multiple vibration transmission paths being unable to be blocked synchronously, poor vibration reduction and noise reduction effect relying solely on single-point buffering, the need to add additional on-site noise and vibration isolation facilities, increased construction costs, and unsuitability for construction in small and sensitive urban areas.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a low-noise vibration pile foundation construction equipment for urban areas, including a drive vehicle, an adjustment unit rotatably mounted on the drive vehicle, and a shock-absorbing fixing unit slidably mounted on the adjustment unit; the adjustment unit includes an adjustment assembly rotatably mounted on the drive vehicle, and a pile driving assembly fixedly mounted on the adjustment assembly; the adjustment assembly includes a connecting shaft rotatably mounted on the drive vehicle, a motor fixedly mounted on the connecting shaft, a drive gear fixedly mounted on the output end of the motor, a rotating gear rotatably mounted on the connecting shaft, and a connecting shell fixedly mounted on the rotating gear, wherein the rotating gear is meshed with the drive gear; the shock-absorbing fixing unit includes a connecting assembly slidably mounted on the adjustment assembly, a shock-absorbing assembly slidably mounted on the inner wall of the connecting assembly, and a fixing assembly fixedly mounted on the shock-absorbing assembly, wherein the fixing assembly is slidably connected to the connecting assembly.

[0007] As a preferred embodiment of the low-noise vibration pile foundation construction equipment for urban areas described in this invention, an adjusting arm is fixedly installed on the connecting shell, a sliding groove is fixedly installed on the adjusting arm, an arc-shaped component is fixedly installed on the adjusting arm, a limit plate is fixedly installed on the arc-shaped component, and the limit plate is fixedly connected to the adjusting arm.

[0008] As a preferred embodiment of the low-noise vibration pile foundation construction equipment for urban areas described in this invention, the pile driving assembly includes a hydraulic rod fixedly installed on a connecting shell, a striking part fixedly installed on the output end of the hydraulic rod, and a hydraulic cylinder fixedly installed on an arc-shaped component, wherein the hydraulic cylinder is fixedly connected to the hydraulic rod.

[0009] As a preferred embodiment of the low-noise vibration pile foundation construction equipment for urban areas described in this invention, the connecting component includes a sliding member slidably installed on the inner wall of the sliding groove, a U-shaped connecting frame fixedly installed on the sliding member, a movable member fixedly installed on the U-shaped connecting frame, a connecting block 1 fixedly installed on the movable member, and a clamp fixedly installed on the movable member.

[0010] As a preferred embodiment of the low-noise vibration pile foundation construction equipment for urban areas described in this invention, the vibration damping component includes a support plate slidably installed on the inner wall of a U-shaped connecting frame, a limiting wheel fixedly installed on the support plate, a vibration damping component fixedly installed on the support plate, a buffer component fixedly installed on the support plate, and a limiting component fixedly installed on the support plate, wherein the vibration damping component and the buffer component are both fixedly connected to the U-shaped connecting frame.

[0011] As a preferred embodiment of the low-noise vibration pile foundation construction equipment for urban areas described in this invention, the vibration damping component includes an adjusting shaft fixedly installed on a support plate, a sliding rod rotatably installed on the adjusting shaft, a return spring fixedly installed on the sliding rod, and a fixing member fixedly installed on the other end of the return spring, wherein the fixing member is slidably connected to the sliding rod.

[0012] As a preferred embodiment of the low-noise vibration pile foundation construction equipment for urban areas described in this invention, the buffer component includes a sliding rod two fixedly installed on a support plate one, a return spring two fixedly installed on the sliding rod two, and a fixing component two fixedly installed on the other end of the return spring two, wherein the fixing component two is slidably connected to the sliding rod two.

[0013] As a preferred embodiment of the low-noise vibration pile foundation construction equipment for urban areas described in this invention, the limiting component includes a connecting column fixedly installed on a support plate, a movable column slidably installed on the inner wall of the connecting column, and a limiting plate fixedly installed on the movable column.

[0014] As a preferred embodiment of the low-noise vibration pile foundation construction equipment for urban areas described in this invention, the fixed component includes a rotating shaft fixedly installed at the bottom of a support plate, a rotating sleeve rotatably installed on the outer wall of the rotating shaft, a linkage plate fixedly installed on the outer wall of the rotating sleeve, a fixed shaft fixedly installed on the support plate, a clamping plate fixedly installed on the fixed shaft, a connecting block two fixedly installed on the linkage plate, and a support plate two fixedly installed at the bottom of the rotating shaft and the fixed shaft, wherein the support plate two is slidably connected to the U-shaped connecting frame.

[0015] As a preferred embodiment of the low-noise vibration pile foundation construction equipment for urban areas described in this invention, a second push rod is fixedly installed on the rotating sleeve, and a first push rod is fixedly installed on the rotating sleeve at the other end.

[0016] The beneficial effects of this invention are as follows: When this equipment is used for pile foundation construction, the clamping angle is first adjusted by adjusting the components. The drive vehicle pushes the connecting components to precisely clamp and position the pile, allowing the pile to pass through the damping components and the fixing components. Then, the fixing components hold the outer wall of the pile tightly, and the damping components limit and constrain the pile, ensuring the verticality and stability of the pile construction. Subsequently, the pile driving components are used to drive the pile after it has been limited. When high-frequency vibration is generated during pile driving, the damping components and the fixing components can adaptively slide and adjust based on the connecting components to dissipate the impact vibration in real time, providing flexible buffer protection for the pile. This forms a multi-dimensional integrated and collaborative damping system, which blocks the vibration transmission path in all directions, effectively reducing construction vibration and noise radiation. Through the integrated linkage damping structure, the drawbacks of traditional pile driver vibration damping components being scattered, having poor single-point buffering effect, and being unable to completely block the vibration transmission channel are solved. It can simultaneously achieve multiple functions such as host protection, pile buffering, vibration suppression and noise reduction, saving construction costs. It can be adapted to construction in narrow urban areas and sensitive areas such as hospitals, schools, and residential areas, improving the stability, safety, and environmental protection of pile foundation construction. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the low-noise vibration pile foundation construction equipment for urban areas according to the present invention.

[0019] Figure 2 This is a schematic diagram of the piling unit structure of the low-noise vibration piling foundation construction equipment for urban areas according to the present invention.

[0020] Figure 3 This is a schematic diagram of the adjustment component structure of the low-noise vibration pile foundation construction equipment for urban areas according to the present invention.

[0021] Figure 4 This is a schematic cross-sectional view of the adjustment component of the low-noise vibration pile foundation construction equipment for urban areas according to the present invention.

[0022] Figure 5 This is a schematic diagram of the piling component structure of the low-noise vibration piling foundation construction equipment for urban areas according to the present invention.

[0023] Figure 6 This is a schematic diagram of the vibration reduction unit structure of the low-noise vibration pile foundation construction equipment for urban areas according to the present invention.

[0024] Figure 7 This is a schematic diagram of the installation components of the low-noise vibration pile foundation construction equipment for urban areas according to the present invention.

[0025] Figure 8 This is a schematic diagram of the vibration damping component structure of the low-noise vibration pile foundation construction equipment for urban areas according to the present invention.

[0026] Figure 9 This is a schematic diagram of the exploded structure of the vibration damping component of the low-noise vibration pile foundation construction equipment for urban areas according to the present invention.

[0027] Figure 10 This is a schematic diagram of the overall structure of the fixed component of the low-noise vibration pile foundation construction equipment for urban areas according to the present invention.

[0028] Figure 11 This is a schematic diagram of the side structure of the fixed component of the low-noise vibration pile foundation construction equipment for urban areas according to the present invention.

[0029] Figure 12 This is a schematic diagram of the working process of the fixed component of the low-noise vibration pile foundation construction equipment for urban areas according to the present invention.

[0030] Explanation of reference numerals in the attached drawings: 1. Drive vehicle; 2. Adjustment unit; 21. Adjustment assembly; 211. Connecting shaft; 212. Motor; 213. Drive gear; 214. Rotary gear; 215. Adjustment arm; 216. Sliding groove; 217. Arc-shaped component; 218. Limiting plate; 219. Connecting shell; 22. Piling assembly; 221. Hydraulic rod; 222. Striking part; 223. Hydraulic cylinder; 3. Shock-absorbing fixing unit; 31. Connecting assembly; 311. U-shaped connecting frame; 312. Sliding component; 313. Connecting block one; 314. Moving component; 315. Gripper; 32. Shock-absorbing assembly; 321. Support plate one; 3 22. Limiting wheel; 323. Shock absorber; 3231. Adjusting shaft; 3232. Sliding rod one; 3233. Return spring one; 3234. Fixing component one; 324. Buffer component; 3241. Sliding rod two; 3242. Return spring two; 3243. Fixing component two; 325. Limiting component; 3251. Connecting column; 3252. Moving column; 3253. Limiting plate; 33. Fixing assembly; 331. Support plate two; 332. Rotating shaft; 333. Rotating sleeve; 334. Linkage plate; 335. Connecting block two; 336. Push rod one; 337. Push rod two; 338. Fixing shaft; 339. Clamping plate. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Example 1, referring to Figure 1 - Figure 2 This is the first embodiment of the present invention, which provides a low-noise vibration pile foundation construction equipment for urban areas. The device includes: a drive vehicle 1, an adjustment unit 2 rotatably mounted on the drive vehicle 1, and a shock-absorbing and fixing unit 3 slidably mounted on the adjustment unit 2. The drive vehicle 1 serves as the load-bearing and moving base of the whole machine, which can drive the upper construction structure to the work site. The adjustment unit 2 realizes the adjustment of the construction angle and the pile driving operation, and works with the shock-absorbing and fixing unit 3 to complete the pile clamping, limiting and fixing and integrated buffering and shock absorption work.

[0033] The adjustment unit 2 includes an adjustment component 21 rotatably mounted on the drive vehicle 1, and a pile driving component 22 fixedly mounted on the adjustment component 21. The adjustment component 21 can rotate relative to the drive vehicle 1 to flexibly adjust the overall clamping and pile driving angle, adapt to the pile foundation construction angle requirements of different working conditions, and provide a structural foundation for the precise alignment of the pile column. The pile driving component 22, as the core impact execution structure, can provide high-frequency impact power after the pile body is positioned, continuously impact the pile column, realize the pile driving operation, and complete the pile foundation soil entry construction.

[0034] Furthermore, the vibration damping and fixing unit 3 includes a connecting component 31 that is slidably mounted on the adjusting component 21, a vibration damping component 32 that is slidably mounted on the inner wall of the connecting component 31, and a fixing component 33 that is fixedly mounted on the vibration damping component 32, and the fixing component 33 is slidably connected to the connecting component 31. During construction, the drive vehicle 1 pushes the connecting component 31 to extend to the pile position, and the connecting component 31 is used to precisely clamp and position the pile, so that the pile passes through the inside of the vibration damping component 32 and the fixing component 33. Then, the fixing component 33 hugs the outer wall of the pile to achieve rigid fixation, and works with the vibration damping component 32 to limit and constrain the pile, ensuring the verticality and posture stability of the pile during construction.

[0035] During use, the overall clamping angle of the equipment is first adjusted by rotating component 21. Then, the connecting component 31 is pushed by the drive vehicle 1 to extend and move to the pile construction position. The connecting component 31 is used to accurately clamp and position the pile, so that the pile passes through the internal structure of the shock-absorbing component 32 and the fixing component 33 in sequence. Then, the fixing component 33 clamps and fixes the outer wall of the pile, while the shock-absorbing component 32 forms a limiting constraint on the pile, ensuring the stability of the pile construction posture and the accuracy of verticality.

[0036] After positioning, the piling assembly 22 continuously drives the pile within the damping assembly 32 and the fixing assembly 33 to complete the ground pile driving operation. When the high-frequency driving operation of the piling assembly 22 generates strong vibrations, the damping assembly 32 and the fixing assembly 33 can adaptively slide along the connecting assembly 31 to offset and dissipate the vibration load generated by the pile driving impact in real time. At the same time, the damping assembly 32 provides flexible buffer protection for the pile body, forming a multi-directional integrated buffer and damping system with the connecting assembly 31. This system blocks the vibration transmission path in all directions, effectively reducing the vibration amplitude and noise generation during the pile driving operation. Structurally, it solves the defects of traditional vibratory pile drivers, such as scattered vibration damping components, lack of integrated and coordinated vibration damping structure, inability to synchronously block multiple vibration paths at the excitation box, transmission components, pile clamps, and hoisting connections, and difficulty in weakening the vibration of the entire area with single-point buffering. This allows the equipment to simultaneously achieve host protection, vibration suppression, and noise reduction, improving the low-vibration and low-noise construction effect in narrow urban areas and sensitive areas such as hospitals, schools, and residential areas.

[0037] Example 2, refer to Figure 1 - Figure 5This is the second embodiment of the present invention, which differs from the first embodiment in that: the adjustment component 21 includes a connecting shaft 211 rotatably mounted on the drive vehicle 1, a motor 212 fixedly mounted on the connecting shaft 211, a drive gear 213 fixedly mounted on the output end of the motor 212, a rotating gear 214 rotatably mounted on the connecting shaft 211, and a connecting shell 219 fixedly mounted on the rotating gear 214, wherein the rotating gear 214 is meshed with the drive gear 213; before construction, the drive vehicle 1 can drive the connecting shaft 211 to rotate, completing the initial adjustment of the overall machine operating angle. At the same time, the motor 212 drives the drive gear 213 to operate, and through gear meshing transmission, drives the rotating gear 214 to rotate synchronously, thereby driving the connecting shell 219 to rotate as a whole, realizing precise fine adjustment of the equipment's pile driving angle. The construction angle can be flexibly corrected according to the terrain conditions and pile foundation design requirements of the construction site, effectively adapting to various complex construction conditions.

[0038] Compared to Embodiment 1, further, an adjusting arm 215 is fixedly installed on the connecting shell 219, a sliding groove 216 is fixedly installed on the adjusting arm 215, an arc-shaped component 217 is fixedly installed on the adjusting arm 215, and a limiting plate 218 is fixedly installed on the arc-shaped component 217, with the limiting plate 218 fixedly connected to the adjusting arm 215; the adjusting arm 215 rotates synchronously with the connecting shell 219 to adjust the angle, and after the angle adjustment is completed, it can cooperate with the connecting component 31 and the fixing component 33 to complete the precise clamping and positioning of the pile column, and cooperate with the shock absorption component 32 to achieve multiple limiting fixation of the pile column, preventing pile column displacement and shaking during construction, and ensuring the verticality of the pile column and construction stability. At the same time, through the sliding limiting cooperation of the limiting plate 218 and the sliding groove 216, the adjustment stroke of the connecting component 31 can be precisely constrained to avoid adjustment displacement.

[0039] Furthermore, the piling assembly 22 includes a hydraulic rod 221 fixedly installed on the connecting shell 219, a striking part 222 fixedly installed on the output end of the hydraulic rod 221, and a hydraulic cylinder 223 fixedly installed on the arc-shaped part 217, and the hydraulic cylinder 223 is fixedly connected to the hydraulic rod 221. After the pile is clamped and fixed in place, the hydraulic cylinder 223 acts as a power source to drive the hydraulic rod 221 to perform telescopic reciprocating motion, which drives the striking part 222 to move up and down at high frequency, continuously and evenly striking the pile that is limited and clamped inside the fixing assembly 33 and the shock absorption assembly 32, thereby achieving stable and efficient pile driving operation.

[0040] During use, before the equipment begins pile foundation construction, the drive vehicle 1 provides power to drive the connecting shaft 211 to adjust the overall working angle. At the same time, the motor 212 drives the drive gear 213 to mesh and rotate the rotating gear 214, causing the connecting shell 219 to synchronously drive the adjusting arms 215 on both sides to rotate and finely adjust the alignment angle. The pile driving angle can be flexibly corrected according to the terrain of the construction site and the pile foundation design requirements, adapting to the needs of complex construction conditions. After the angle is adjusted to the correct position, the adjusting arm 215 works in conjunction with the connecting component 31 and the fixing component 33 to accurately clamp and position the pile. The shock absorption component 32 and the fixing component 33 work together to perform multiple limit fixation on the pile, effectively preventing the pile from shifting or shaking during construction, ensuring that the pile is upright and firmly positioned, laying the foundation for high-precision pile driving. After the pile is fixed, the hydraulic cylinder 223 on the arc-shaped part 217 on the inner wall of the adjusting arm 215 starts working, pushing the hydraulic rod 221 to extend and retract, driving the striking part 222 to perform high-frequency up-and-down reciprocating motion, continuously and evenly striking the pile held in the fixed component 33 and the shock-absorbing component 32, achieving stable and efficient pile driving operation; during the adjustment of the overall machine angle and the movement of the clamping, the sliding limit cooperation between the limit plate 218 and the sliding groove 216 can accurately constrain the adjustment stroke of the connecting component 31, effectively avoiding adjustment deviation and out-of-tolerance movement, improving the accuracy, efficiency and environmental friendliness of pile foundation construction, and is particularly suitable for low-noise and low-vibration pile foundation construction operations in narrow urban areas, residential areas and other sensitive areas.

[0041] The remaining structure is the same as that in Example 1.

[0042] Example 3, referring to Figure 1 - Figure 12 This is the third embodiment of the present invention, which differs from the second embodiment in that: the connecting component 31 includes a sliding member 312 slidably mounted on the inner wall of the sliding groove 216, a U-shaped connecting frame 311 fixedly mounted on the sliding member 312, a moving member 314 fixedly mounted on the U-shaped connecting frame 311, a connecting block 313 fixedly mounted on the moving member 314, and a gripper 315 fixedly mounted on the moving member 314; during operation, the sliding member 312 can slide precisely along the sliding groove 216, driving the U-shaped connecting frame 311 to complete the overall angle alignment adjustment, and cooperating with the moving member 314 and the connecting block 313 to achieve structural linkage support, so that the bottom gripper 315 can stably flip and open and close, and complete the rapid initial clamping and positioning of the pile column.

[0043] Compared to Embodiment 2, the shock absorption assembly 32 further includes a support plate 321 slidably mounted on the inner wall of the U-shaped connecting frame 311, a limiting wheel 322 fixedly mounted on the support plate 321, a shock absorber 323 fixedly mounted on the support plate 321, a buffer 324 fixedly mounted on the support plate 321, and a limiting member 325 fixedly mounted on the support plate 321. The shock absorber 323 and the buffer 324 are both fixedly connected to the U-shaped connecting frame 311. The support plate 321, as the core load-bearing and shock absorption mounting base, can adaptively slide and adjust relative to the U-shaped connecting frame 311. It works with the limiting wheel 322 to achieve sliding guidance and limiting, ensuring smooth and uninterrupted structural adjustment. The integrated shock absorber 323, buffer 324, and limiting member 325 form an integrated hierarchical shock absorption and limiting structure.

[0044] Furthermore, the shock absorber 323 includes an adjusting shaft 3231 fixedly mounted on the support plate 321, a sliding rod 3232 rotatably mounted on the adjusting shaft 3231, a return spring 3233 fixedly mounted on the sliding rod 3232, and a fixing member 3234 fixedly mounted on the other end of the return spring 3233, with the fixing member 3234 slidably connected to the sliding rod 3232. When the high-frequency impact vibration of the pile driving generates shock, the sliding rod 3232 can rotate and adjust along the adjusting shaft 3231, and squeeze the return spring 3233 with the impact pressure, causing the sliding rod 3232 to slide into the fixing member 3234. Through the elastic compression and reset of the return spring 3233, the first-level impact energy dissipation and shock absorption are achieved, effectively absorbing the instantaneous impact force of the pile driving, weakening the high-frequency mechanical resonance of the equipment, initially blocking the upward and outward transmission of vibration, and reducing the vibration amplitude of the foundation.

[0045] Furthermore, the buffer 324 includes a sliding rod 3241 fixedly installed on the support plate 321, a return spring 3242 fixedly installed on the sliding rod 3241, and a fixing member 3243 fixedly installed on the other end of the return spring 3242, with the fixing member 3243 slidably connected to the sliding rod 3241. The buffer 324 and the shock absorber 323 form a bidirectional superimposed buffer system. During the pile driving operation, the sliding rod 3241 synchronously squeezes the return spring 3242 and slides into the fixing member 3243. The elastic deformation of the return spring 3242 is used to achieve secondary vibration buffering and energy dissipation. It works in coordination with the primary shock absorber structure to dissipate residual impact vibration layer by layer.

[0046] Furthermore, the limiting component 325 includes a connecting column 3251 fixedly installed on the support plate 321, a movable column 3252 slidably installed on the inner wall of the connecting column 3251, and a limiting plate 3253 fixedly installed on the movable column 3252. During the reciprocating buffer reset process of the two sets of springs, the movable column 3252 can adaptively reciprocate within the connecting column 3251 following the vibration impact, driving the limiting plate 3253 to make real-time micro-adjustments, maintaining a tight fit and limiting constraint on the pile throughout the process, accurately correcting the pile posture, ensuring that the pile is vertically stressed and vertically inserted into the soil throughout the process, eliminating secondary impacts and friction noise caused by pile swaying and wobbling, and achieving simultaneous and coordinated vibration reduction, pile stabilization, and noise reduction.

[0047] Furthermore, the fixing component 33 includes a rotating shaft 332 fixedly installed at the bottom of the support plate 321, a rotating sleeve 333 rotatably installed on the outer wall of the rotating shaft 332, a linkage plate 334 fixedly installed on the outer wall of the rotating sleeve 333, a fixing shaft 338 fixedly installed on the support plate 321, a clamping plate 339 fixedly installed on the fixing shaft 338, a connecting block 335 fixedly installed on the linkage plate 334, and a support plate 331 fixedly installed at the bottom of the rotating shaft 332 and the fixing shaft 338, and the support plate 331 is slidably connected to the U-shaped connecting frame 311; the fixing component 33 is slidably adapted to the U-shaped connecting frame 311 as a whole, and its position can be adjusted synchronously with the overall structure. Through the linkage of the rotating shaft 332, the rotating sleeve 333 and the linkage plate 334, the clamping plate 339 is driven to rotate and retract, forming an all-round circumferential rigid fixation on the outer wall of the pile column, completely locking the construction posture of the pile column, and preventing the pile column from loosening or shifting during the pile driving process.

[0048] Furthermore, a push rod 2 337 is fixedly installed on the rotating sleeve 333, and a push rod 1 336 is fixedly installed on the rotating sleeve 333 at the other end. During operation, the push rod 1 336 and the push rod 2 337 drive in opposite directions to provide stable power for the rotation adjustment of the rotating sleeve 333, realize the synchronous linkage and symmetrical adjustment of the two sides of the structure, ensure that the clamping plate 339 clamps the pile column with uniform force and stable positioning, effectively improve the fixing accuracy of the pile column, avoid the pile body swaying caused by uneven force on one side, and the additional vibration and noise generated therefrom.

[0049] During operation, when the equipment is driving piles, the tilt angle of the entire machine is first precisely adjusted by adjusting component 21 to adapt to the pile foundation construction conditions of different sites. Then, the sliding component 312 drives the U-shaped connecting frame 311 to rotate precisely along the sliding groove 216 for alignment, causing the grippers 315 at the bottom of the U-shaped connecting frame 311 to flip and open, achieving rapid initial clamping and positioning of the pile. Then, the angle is finely adjusted and corrected by adjusting component 21 to ensure that the overall state of the grippers 315 is vertical after clamping the pile, thus avoiding deviation and tilting problems in subsequent pile driving from the source. Then, the pile is fed upwards along the inside of the grippers 315. The pile is driven through the internal limiting space of support plate 331 and support plate 321 in sequence. The top of the pile is simultaneously locked and fixed inside the limiting member 325 to achieve top limit. At the same time, push rod 336 and push rod 337 on support plate 331 are driven in opposite directions to drive the rotating sleeve 333 on the outside of the rotating shaft 332 to rotate and adjust. With the hinge rotation of linkage plate 334 and fixed shaft 338, multiple clamping plates 339 are driven to rotate and retract synchronously, tightly fitting the outer wall of the pile to achieve all-round rigid fixation, completely locking the posture of the pile and preventing the pile from shaking or shifting during the pile driving process.

[0050] After the pile is fully positioned and stabilized, the pile driving assembly 22 performs uniform high-frequency impact on the pile locked inside the limiting member 325 to continuously complete the pile driving operation. The pile driving will generate high-intensity impact vibration and friction noise. During this process, the equipment relies on the double set of elastic buffer structures mounted on the support plate 321 to achieve multi-level energy consumption and vibration reduction: the sliding rod 3232 inside the adjusting shaft 3231 is pressed by the impact pressure to push the reset spring 3233 and slide into the fixing member 3234 to complete the first-level impact buffer and vibration energy consumption. At the same time, the sliding rod 3241 simultaneously pushes the reset spring 3242 to move into the fixing member 3243, forming a second-level superimposed vibration reduction structure. The double springs can effectively absorb and dissipate the instantaneous impact vibration of pile driving and weaken the high-frequency mechanical resonance.

[0051] Meanwhile, during the reciprocating elastic buffer reset process of the two sets of reset springs, the moving column 3252 can adaptively reciprocate within the connecting column 3251, driving the limiting plate 3253 to make real-time micro-adjustments, always maintaining tight limiting constraints on the pile column, ensuring that the pile column is vertically stressed and vertically driven into the soil throughout the entire process, avoiding secondary vibration and impact noise caused by pile body sway. Through the integrated linkage of the bidirectional elastic buffer structure and the follow-up limiting structure, an all-round, multi-dimensional, and hierarchical integrated collaborative vibration reduction and noise reduction system is constructed. It can simultaneously block the vibration transmission path from the pile clamping end, the impact force end, and the equipment connection end, eliminating impact vibration layer by layer, suppressing mechanical resonance and friction noise. It overcomes the defects of traditional pile driver vibration reduction components being scattered and independent, relying only on single-point buffering, incomplete vibration elimination, inability to completely block vibration transmission channels, and weak noise reduction and vibration suppression effects. It can perfectly adapt to the low vibration, low noise green construction requirements of urban narrow sites, hospitals, schools, residential areas and other environmentally sensitive areas, greatly improving the stability, safety and environmental protection of urban pile foundation construction.

[0052] The remaining structure is the same as that in Example 2.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A low-noise vibration pile driving foundation construction equipment for urban areas, characterized in that: It includes a drive vehicle (1), an adjustment unit (2) rotatably mounted on the drive vehicle (1), and a shock-absorbing fixing unit (3) slidably mounted on the adjustment unit (2). The adjustment unit (2) includes an adjustment assembly (21) rotatably mounted on the drive vehicle (1) and a piling assembly (22) fixedly mounted on the adjustment assembly (21). The adjustment assembly (21) includes a connecting shaft (211) rotatably mounted on the drive vehicle (1), a motor (212) fixedly mounted on the connecting shaft (211), a drive gear (213) fixedly mounted on the output end of the motor (212), a rotating gear (214) rotatably mounted on the connecting shaft (211), and a connecting housing (219) fixedly mounted on the rotating gear (214), wherein the rotating gear (214) is meshed with the drive gear (213); The shock-absorbing fixing unit (3) includes a connecting component (31) that is slidably mounted on the adjusting component (21), a shock-absorbing component (32) that is slidably mounted on the inner wall of the connecting component (31), and a fixing component (33) that is fixedly mounted on the shock-absorbing component (32), and the fixing component (33) is slidably connected to the connecting component (31).

2. The low-noise vibration pile driving foundation construction equipment for urban areas according to claim 1, characterized in that: An adjusting arm (215) is fixedly installed on the connecting shell (219). A sliding groove (216) is fixedly installed on the adjusting arm (215). An arc-shaped part (217) is fixedly installed on the adjusting arm (215). A limit plate (218) is fixedly installed on the arc-shaped part (217), and the limit plate (218) is fixedly connected to the adjusting arm (215).

3. The low-noise vibration pile driving foundation construction equipment for urban areas according to claim 2, characterized in that: The piling assembly (22) includes a hydraulic rod (221) fixedly mounted on a connecting shell (219), a striking part (222) fixedly mounted on the output end of the hydraulic rod (221), and a hydraulic cylinder (223) fixedly mounted on an arc-shaped part (217), wherein the hydraulic cylinder (223) is fixedly connected to the hydraulic rod (221).

4. The low-noise vibration pile driving foundation construction equipment for urban areas according to claim 3, characterized in that: The connecting assembly (31) includes a sliding member (312) slidably mounted on the inner wall of the sliding groove (216), a U-shaped connecting frame (311) fixedly mounted on the sliding member (312), a moving member (314) fixedly mounted on the U-shaped connecting frame (311), a connecting block (313) fixedly mounted on the moving member (314), and a gripper (315) fixedly mounted on the moving member (314).

5. The low-noise vibration pile driving foundation construction equipment for urban areas according to claim 4, characterized in that: The shock-absorbing assembly (32) includes a support plate (321) slidably mounted on the inner wall of the U-shaped connecting frame (311), a limiting wheel (322) fixedly mounted on the support plate (321), a shock absorber (323) fixedly mounted on the support plate (321), a buffer (324) fixedly mounted on the support plate (321), and a limiting member (325) fixedly mounted on the support plate (321), wherein the shock absorber (323) and the buffer (324) are both fixedly connected to the U-shaped connecting frame (311).

6. The low-noise vibration pile driving foundation construction equipment for urban areas according to claim 5, characterized in that: The shock absorber (323) includes an adjusting shaft (3231) fixedly mounted on a support plate (321), a sliding rod (3232) rotatably mounted on the adjusting shaft (3231), a return spring (3233) fixedly mounted on the sliding rod (3232), and a fixing member (3234) fixedly mounted on the other end of the return spring (3233), and the fixing member (3234) is slidably connected to the sliding rod (3232).

7. The low-noise vibration pile driving foundation construction equipment for urban areas according to claim 6, characterized in that: The buffer (324) includes a sliding rod (3241) fixedly mounted on a support plate (321), a return spring (3242) fixedly mounted on the sliding rod (3241), and a fixing member (3243) fixedly mounted on the other end of the return spring (3242), and the fixing member (3243) is slidably connected to the sliding rod (3241).

8. The low-noise vibration pile driving foundation construction equipment for urban areas according to claim 7, characterized in that: The limiting component (325) includes a connecting column (3251) fixedly installed on the support plate (321), a movable column (3252) slidably installed on the inner wall of the connecting column (3251), and a limiting plate (3253) fixedly installed on the movable column (3252).

9. The low-noise vibration pile driving foundation construction equipment for urban areas according to claim 8, characterized in that: The fixing assembly (33) includes a rotating shaft (332) fixedly installed at the bottom of the support plate (321), a rotating sleeve (333) rotatably installed on the outer wall of the rotating shaft (332), a linkage plate (334) fixedly installed on the outer wall of the rotating sleeve (333), a fixing shaft (338) fixedly installed on the support plate (321), a clamping plate (339) fixedly installed on the fixing shaft (338), a connecting block (335) fixedly installed on the linkage plate (334), and a support plate (331) fixedly installed at the bottom of the rotating shaft (332) and the fixing shaft (338), and the support plate (331) is slidably connected to the U-shaped connecting frame (311).

10. The low-noise vibration pile driving foundation construction equipment for urban areas according to claim 9, characterized in that: Push rod 2 (337) is fixedly installed on the rotating sleeve (333), and push rod 1 (336) is fixedly installed on the rotating sleeve (333) at the other end.

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