High-balance self-calibration type hydraulic pile driver

Abstract

The invention discloses a high-balance self-calibration type hydraulic pile driver, and relates to the technical field of building construction equipment. The pile driver comprises a supporting base, a guide rail frame is installed on the top of the supporting base, and a pile driver head is arranged on one side of the guide rail frame; a correction assembly is arranged on the top of the supporting base and comprises a balance box installed on the top of the supporting base. By arranging the correcting assembly and the balancing assembly, when a balancing instrument detects that the supporting base deviates, a hydraulic rod acts immediately to push a moving block and a toothed plate to move, then a gear is driven to drive a fixed shaft and a rotating plate to rotate, a balance weight disc swings in the opposite direction, and the gravity center position of the whole machine is actively changed in the process; the reverse balance moment is generated, and the upsetting moment generated by piling can be automatically counteracted in real time, so that the skew trend of the guide rail frame is inhibited from the source, the stability and the safety coefficient of equipment in continuous high-strength operation are remarkably improved, and the vertical accuracy of piling is ensured.

Description

Technical Field

[0001] This invention belongs to the field of construction equipment technology, and in particular relates to a high-balance self-calibrating hydraulic pile driver. Background Technology

[0002] Hydraulic pile drivers are the core equipment of modern pile driving machinery, utilizing the powerful and stable power generated by a hydraulic system to drive piles. Their working principle involves a hydraulic pump converting the mechanical energy of a diesel engine or electric motor into hydraulic energy, driving a hydraulic cylinder or motor to lift a hammer weighing several tons to a certain height and then release it, or to continuously hammer at high frequency, driving the pile into the ground. Compared with traditional diesel hammers and drop hammers, hydraulic pile drivers have significant advantages such as high striking energy, low noise, low vibration, less pollution, high operating efficiency, and strong controllability. They are widely used in the foundation construction of high-rise buildings, bridges, ports, and rail transit, and are suitable for various pile types, including precast concrete piles and steel piles, making them key equipment for achieving green and efficient construction.

[0003] A Chinese patent application (or patent) with publication number CN216194722U discloses a tracked hydraulic pile driver, including a vehicle body and a moving structure. The bottom right side of the vehicle body is provided with a movable groove, and the top right side of the vehicle body is movably connected to the moving structure. The moving structure includes a base plate, a first hydraulic telescopic rod, a power block, and a moving block. The bottom of the first hydraulic telescopic rod is connected to a fixed seat. This invention solves the problem that current pile drivers cannot work by adjusting the angle and can only rely on the overall direction adjustment, which adds a lot of trouble to construction. Moreover, workers can only rely on experience when adjusting the angle of the pile rod, which affects the pile driving efficiency.

[0004] However, the above-mentioned device still has the following problems during implementation: When a hydraulic pile driver is working, it relies on the high-frequency impact of the hydraulic pile head to strike the pile column. While the pile column is subjected to strong impact, it also generates violent reverse impact vibration. This vibration is transmitted to the slide support of the machine body through the equipment structure, causing the support to shift or tilt under continuous and uneven stress. When the angle is corrected by hydraulic equipment, the weight on both sides of the machine body does not change. When working continues, it will tilt again, affecting the overall working stability of the equipment and posing a safety hazard.

[0005] To address these issues, we provide a high-balance self-calibrating hydraulic pile driver. Summary of the Invention

[0006] The purpose of this invention is to provide a high-balance self-calibrating hydraulic pile driver. Through the structural cooperation of the correction component, the balance component and the counterweight component, it solves the problem in the prior art where the hydraulic pile driver uses a hydraulic pile head to strike the pile, and the impact vibration of the pile is transmitted to the machine body, causing the slide support of the machine body to tilt and affecting the stability of the equipment.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.

[0008] This invention relates to a high-balance self-calibrating hydraulic pile driver, comprising a support base, a guide rail frame mounted on the top of the support base, and a pile driver head mounted on one side of the guide rail frame. A calibration component is mounted on the top of the support base, comprising a balance box mounted on the top of the support base, a balancer mounted on the top of the balance box, fixed seats on both sides of the support base, and a hydraulic rod movably connected to the top of the fixed seats. The calibration component corrects the offset of the pile driver head. A balance component is also mounted on the top of the support base, comprising a support column mounted on the top of the support base, fixed shafts movably connected to both sides of the support column, a rotating plate mounted on one side of the fixed shafts, a counterweight plate mounted on one side of the rotating plate, a drive gear mounted on the surface of the fixed shafts, and a toothed plate meshing with one side of the drive gear. The balance component maintains the balance of the pile driver head during calibration. A counterweight component is located inside the balance box, comprising a counterweight slider slidably connected inside the balance box, a support sleeve movably connected inside the counterweight slider, and a screw threadedly connected inside the support sleeve. The counterweight component assists in maintaining the balance of the support base.

[0009] The present invention is further configured such that the counterweight assembly includes a drive motor mounted on one side of the counterweight slider, a first gear mounted on the output end of the drive motor, and a second gear mounted on the surface of the support sleeve.

[0010] The invention is further configured such that one side of the second gear meshes with the first gear, and both ends of the screw are fixedly connected to the inner wall of the balance box.

[0011] The invention is further configured such that sliding grooves are provided on both sides of the support column, and a movable block is slidably connected inside the sliding groove. One side of the movable block is fixedly connected to the toothed plate, and the other end of the hydraulic rod is movably connected to the movable block.

[0012] The present invention is further configured such that a guide rail plate is fixedly connected to one side of the guide rail frame, a guide block is slidably connected to the surface of the guide rail plate, and the other side of the guide block is fixedly connected to the piling head.

[0013] The present invention is further configured such that a lubrication assembly is provided inside the guide block, the lubrication assembly including a support tube movably connected inside the guide block, a pulley connected to one end of the support tube, an opening on the surface of the support tube, and an injection hole on the surface of the pulley.

[0014] The present invention is further configured such that the lubrication assembly includes a liquid storage shell installed inside the guide block, an electric push rod installed on the top of the liquid storage shell, a pressure plate installed at the output end of the electric push rod, and oil-absorbing cotton disposed at the bottom of the pressure plate.

[0015] The invention is further configured such that the pressure plate is slidably connected to the inner wall of the liquid storage shell, and an inlet pipe is connected to one side of the liquid storage shell.

[0016] The present invention is further configured such that a liquid injection groove is provided inside the guide block, a liquid injection pipe is connected to one side of the liquid injection groove, and the other end of the liquid injection pipe is connected to the liquid storage shell.

[0017] The present invention is further configured such that a counterweight is fixedly connected to the top of the support base, and a stable base plate is fixedly connected to the bottom of the support base.

[0018] The present invention has the following beneficial effects.

[0019] 1. This invention, by setting up a correction component and a balancing component, when the balancing instrument detects a shift in the support base, the hydraulic rod immediately actuates, pushing the moving block and toothed plate to move, which in turn drives the gear to rotate the fixed shaft and the rotating plate, causing the counterweight plate to swing in the opposite direction. This process actively changes the center of gravity of the entire machine, generating a reverse balancing torque, which can automatically and in real time counteract the overturning torque generated by piling, thereby suppressing the tilting tendency of the guide rail frame at the source, significantly improving the stability and safety factor of the equipment in continuous high-intensity operation, and ensuring the vertical accuracy of piling.

[0020] 2. This invention, by incorporating a lubrication system, effectively ensures the smoothness and stability of the piling head's operation. An electric push rod drives a pressure plate to squeeze the oil-absorbing cotton, continuously and evenly coating the lubricating oil stored in the reservoir onto the guide rail surface via the injection pipe, injection groove, and finally through the injection holes on the support pipe and pulley. The lubrication mechanism replenishes lubricating oil as needed based on the equipment's operating conditions, significantly reducing frictional resistance and wear between the guide block and the guide rail. This prevents the piling head from jamming or shaking due to poor lubrication, extending the service life of key moving parts and further ensuring the continuity and precision of piling operations.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 This is a 3D view of a highly balanced, self-calibrating hydraulic pile driver.

[0024] Figure 2 This is a cross-sectional view of the balance box in a high-balance self-calibrating hydraulic pile driver.

[0025] Figure 3 This is a cross-sectional view of the counterweight slider in a high-balance self-calibrating hydraulic pile driver.

[0026] Figure 4 This is a schematic diagram of the structure of the support column surface in a high-balance self-calibrating hydraulic pile driver.

[0027] Figure 5 This is a schematic diagram of the internal structure of the support column in a high-balance self-calibrating hydraulic pile driver.

[0028] Figure 6 This is a schematic diagram showing the connection between the guide rail plate and the guide block in a high-balance self-calibrating hydraulic pile driver.

[0029] Figure 7 This is a partial cross-sectional view of the guide block in a high-balance self-calibrating hydraulic pile driver.

[0030] Figure 8 This is a cross-sectional view of the support pipe and pulley in a high-balance self-calibrating hydraulic pile driver.

[0031] In the attached diagram: 1. Support base; 2. Guide rail frame; 3. Pile driver head; 4. Correction assembly; 401. Balance box; 402. Balancer; 403. Fixed seat; 404. Hydraulic rod; 5. Balancing assembly; 501. Support column; 502. Fixed shaft; 503. Rotating plate; 504. Counterweight plate; 505. Drive gear; 506. Gear plate; 6. Counterweight assembly; 601. Counterweight slider; 602. Support sleeve; 603. Screw; 604. Drive motor ; 605, First gear; 606, Second gear; 7, Slide groove; 8, Moving block; 9, Guide rail plate; 10, Guide block; 11, Lubrication assembly; 1101, Support pipe; 1102, Pulley; 1103, Through port; 1104, Injection hole; 1105, Liquid storage shell; 1106, Electric push rod; 1107, Pressure plate; 1108, Oil-absorbing cotton; 12, Inlet pipe; 13, Injection tank; 14, Injection pipe; 15, Counterweight block; 16, Stabilizing base plate. Detailed Implementation

[0032] The technical solutions of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments. Example

[0033] Please see Figures 1-8 This invention relates to a high-balance self-calibrating hydraulic pile driver, comprising a support base 1, a guide rail frame 2 mounted on the top of the support base 1, and a pile driver head 3 mounted on one side of the guide rail frame 2; a correction assembly 4 is mounted on the top of the support base 1, the correction assembly 4 including a balance box 401 mounted on the top of the support base 1, a balancer 402 mounted on the top of the balance box 401, fixed seats 403 located on both sides of the support base 1, and a hydraulic rod 404 movably connected to the top of the fixed seats 403, the correction assembly 4 correcting the offset of the pile driver head 3; and a balance assembly 5 is mounted on the top of the support base 1, the balance assembly 5 including a support column 501 mounted on the top of the support base 1, and a hydraulic rod 404 movably connected to the top of the fixed seats 403. Fixed shafts 502 are connected to both sides of the support column 501, a rotating plate 503 is installed on one side of the fixed shaft 502, a counterweight plate 504 is installed on one side of the rotating plate 503, a drive gear 505 is installed on the surface of the fixed shaft 502, and a toothed plate 506 meshes with one side of the drive gear 505. The balance of the pile driver head 3 during correction is maintained by the balance assembly 5. The balance box 401 is equipped with a counterweight assembly 6, which includes a counterweight slider 601 slidably connected to the inside of the balance box 401, a support sleeve 602 movably connected to the inside of the counterweight slider 601, and a screw 603 threadedly connected to the inside of the support sleeve 602. The counterweight assembly 6 assists in maintaining the balance of the support base 1.

[0034] Specifically: the guide rail frame 2 provides a stable guide rail for the pile driver head 3, ensuring verticality during the pile driving process. The pile driver head 3, as the main working component, is responsible for performing high-frequency hammering operations. The balancer 402 can monitor the tilt status of the equipment in real time. The fixed base 403 provides a stable support point for the hydraulic rod 404. The hydraulic rod 404 actively adjusts the tilt angle of the equipment through telescopic movement. The fixed shaft 502 serves as the axis of rotation. The rotating plate 503 connects to the counterweight plate 504 and transmits torque. The counterweight plate 504 adjusts the overall center of gravity of the equipment by changing its position. The drive gear 505 meshes with the toothed plate 506 to achieve precise transmission, ensuring that the counterweight plate 504 responds quickly to tilting. The counterweight slider 601 slides within the balance box 401 to dynamically adjust the center of gravity of the equipment. The support sleeve 602 serves as a transmission component, connecting to the screw 603. The screw 603 achieves precise displacement control of the counterweight slider 601 through threaded transmission. The drive motor 604 provides power output. The first gear 605 acts as the driving gear to transmit torque, and the second gear 606 acts as the driven gear to drive the support sleeve 602 to rotate, achieving smooth and reliable power transmission. Example

[0035] Please see Figures 1-8 Based on embodiment 1, the counterweight assembly 6 further includes a drive motor 604 installed on one side of the counterweight slider 601, a first gear 605 installed on the output end of the drive motor 604, a second gear 606 installed on the surface of the support sleeve 602, one side of the second gear 606 meshing with the first gear 605, both ends of the screw 603 being fixedly connected to the inner wall of the balance box 401, both sides of the support column 501 having a sliding groove 7, a moving block 8 being slidably connected inside the sliding groove 7, one side of the moving block 8 being fixedly connected to the toothed plate 506, the other end of the hydraulic rod 404 being movably connected to the moving block 8, one side of the guide rail frame 2 being fixedly connected to the guide rail plate 9, a guide block 10 being slidably connected to the surface of the guide rail plate 9, and the other side of the guide block 10 being fixedly connected to the pile driver head 3.

[0036] Specifically: the slide 7 provides a guide rail for the moving block 8, which is I-shaped and can maintain vertical movement when sliding inside the slide 7. The moving block 8 acts as a connector to transmit the thrust of the hydraulic rod 404. The toothed plate 506 meshes with the drive gear 505 to realize the conversion from linear motion to rotary motion. The guide rail plate 9 serves as the movement rail for the pile driver head 3. The guide block 10 ensures that the pile driver head 3 moves smoothly along the predetermined path, reducing shaking and deviation during operation. The support pipe 1101 serves as a channel for conveying lubricating oil. The pulley 1102 rolls on the surface of the guide rail plate 9 and is coated with lubricating oil at the same time. The through-hole 1103 and the injection hole 1104 ensure that the lubricating oil is evenly distributed and improves the lubrication effect. Example

[0037] Please see Figures 1-8 Based on Embodiments 1 and 2, a lubrication assembly 11 is provided inside the guide block 10. The lubrication assembly 11 includes a support tube 1101 movably connected inside the guide block 10, a pulley 1102 communicating with one end of the support tube 1101, a through-hole 1103 opened on the surface of the support tube 1101, and an injection hole 1104 opened on the surface of the pulley 1102. The lubrication assembly 11 also includes a liquid storage shell 1105 installed inside the guide block 10, and an electric push rod 110 installed on the top of the liquid storage shell 1105. 6. A pressure plate 1107 is installed at the output end of the electric push rod 1106, and an oil-absorbing cotton 1108 is set at the bottom of the pressure plate 1107. The pressure plate 1107 is slidably connected to the inner wall of the liquid storage shell 1105. A liquid inlet pipe 12 is connected to one side of the liquid storage shell 1105. A liquid injection groove 13 is opened inside the guide block 10. A liquid injection pipe 14 is connected to one side of the liquid injection groove 13. The other end of the liquid injection pipe 14 is connected to the liquid storage shell 1105. A counterweight block 15 is fixedly connected to the top of the support base 1, and a stable base plate 16 is fixedly connected to the bottom of the support base 1.

[0038] Specifically: the liquid storage shell 1105 is used to store lubricating oil, the electric push rod 1106 provides pressure output, the pressure plate 1107 pushes the oil-absorbing cotton 1108 to release lubricating oil. The oil-absorbing cotton 1108 has good oil absorption and release properties, ensuring continuous and stable lubrication. The sliding connection of the pressure plate 1107 ensures the uniformity of pressure transmission. The liquid inlet pipe 12 facilitates the replenishment and maintenance of lubricating oil. The liquid injection tank 13 serves as a temporary storage space for lubricating oil. The liquid injection pipe 14 connects the liquid storage shell 1105 and the liquid injection tank 13 to realize automatic supply of lubricating oil. The counterweight 15 increases the overall stability of the equipment and reduces the impact of vibration during operation. The stabilizing base plate 16 expands the support area and improves the adaptability of the equipment on complex foundations.

[0039] The working principle of this invention is as follows: When the operator starts the pile driver head 3 to strike the pile, the vibration generated by the strike is transmitted to the support base 1. The offset angle of the support base 1 is detected by the balancer 402. When the offset angle exceeds the set value, for example, when the support base 1 shifts to the left, the hydraulic rod 404 located on the left side of the support base 1 is activated. The hydraulic rod 404 pushes the moving block 8 to move. The moving block 8 drives the toothed plate 506 to move upward. The toothed plate 506, in conjunction with the gear, drives the fixed shaft 502 to rotate. The fixed shaft 502, in conjunction with the rotating plate 503, drives the counterweight plate 504 to rotate, rotating the counterweight plate 504 to the right side. When the counterweight plate 504 rotates to the right side of the support base 1, it can change the center of gravity of the support base 1, thus achieving a balancing effect. Then, the hydraulic rod 404 is activated again. When the hydraulic rod 404 drives the moving block 8 to the top of the slide groove 7, it can push the support column 501 to move. The support column 501 causes the support base 1 to tilt, thereby adjusting the offset angle of the pile driver head 3.

[0040] During the adjustment process, the drive motor 604 can be started simultaneously. The drive motor 604, together with the first gear 605, drives the second gear 606 to rotate. The second gear 606 drives the support sleeve 602 to rotate. The support sleeve 602 is connected to the screw 603 by threads. Through the action of the threads, the counterweight slider 601 slides inside the balance box 401. The center of the support base 1 is adjusted by the counterweight slider 601, which can play an auxiliary balancing role. When the pile driver head 3 is working, it can be quickly leveled, improving construction efficiency.

[0041] During the operation of the piling head 3, the guide block 10 can slide on the surface of the guide rail plate 9. Once the lubricating oil on the surface of the guide rail plate 9 is lost, the smoothness of the movement of the guide block 10 decreases, causing the piling head 3 to shake during operation. At this time, the operator starts the electric push rod 1106, which drives the pressure plate 1107 to move. The pressure plate 1107 squeezes the oil-absorbing cotton 1108, squeezing out the oil inside the oil-absorbing cotton 1108 and injecting it into the injection tank 13 through the injection pipe 14. It is discharged through the port 1103, support pipe 1101 and injection hole 1104, coating the surface of the guide rail plate 9, increasing the lubrication effect of the oil and improving the stability of the piling head 3 during operation.

[0042] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-balance self-calibrating hydraulic pile driver, comprising a support base (1), characterized in that: The top of the support base (1) is equipped with a guide rail frame (2), and a pile driver head (3) is provided on one side of the guide rail frame (2). The top of the support base (1) is provided with a correction component (4), which includes a balance box (401) installed on the top of the support base (1), a balancer (402) installed on the top of the balance box (401), a fixed seat (403) set on both sides of the support base (1), and a hydraulic rod (404) movably connected to the top of the fixed seat (403). The offset of the pile driver head (3) is corrected by the correction component (4). The top of the support base (1) is provided with a balancing component (5). The balancing component (5) includes a support column (501) installed on the top of the support base (1), a fixed shaft (502) movably connected to both sides of the support column (501), a rotating plate (503) installed on one side of the fixed shaft (502), a counterweight plate (504) installed on one side of the rotating plate (503), a drive gear (505) installed on the surface of the fixed shaft (502), and a toothed plate (506) meshing with one side of the drive gear (505). The balancing component (5) maintains the balance of the pile driver head (3) during correction. The balance box (401) is provided with a counterweight assembly (6). The counterweight assembly (6) includes a counterweight slider (601) slidably connected to the inside of the balance box (401), a support sleeve (602) movably connected to the inside of the counterweight slider (601), and a screw (603) threadedly connected to the inside of the support sleeve (602). The counterweight assembly (6) assists in supporting the balance of the base (1).

2. The high-balance self-calibrating hydraulic pile driver according to claim 1, characterized in that: The counterweight assembly (6) also includes a drive motor (604) installed on one side of the counterweight slider (601), a first gear (605) installed on the output end of the drive motor (604), and a second gear (606) installed on the surface of the support sleeve (602).

3. The high-balance self-calibrating hydraulic pile driver according to claim 2, characterized in that: The second gear (606) meshes with the first gear (605) on one side, and both ends of the screw (603) are fixedly connected to the inner wall of the balance box (401).

4. The high-balance self-calibrating hydraulic pile driver according to claim 1, characterized in that: The support column (501) has a sliding groove (7) on both sides. A moving block (8) is slidably connected inside the sliding groove (7). One side of the moving block (8) is fixedly connected to the toothed plate (506), and the other end of the hydraulic rod (404) is movably connected to the moving block (8).

5. A high-balance self-calibrating hydraulic pile driver according to claim 1, characterized in that: The guide rail frame (2) is fixedly connected to a guide rail plate (9) on one side, and a guide block (10) is slidably connected to the surface of the guide rail plate (9). The other side of the guide block (10) is fixedly connected to the pile driver head (3).

6. A high-balance self-calibrating hydraulic pile driver according to claim 5, characterized in that: The guide block (10) is provided with a lubrication assembly (11). The lubrication assembly (11) includes a support tube (1101) movably connected inside the guide block (10), a pulley (1102) connected to one end of the support tube (1101), a through-hole (1103) opened on the surface of the support tube (1101), and an injection hole (1104) opened on the surface of the pulley (1102).

7. A high-balance self-calibrating hydraulic pile driver according to claim 6, characterized in that: The lubrication assembly (11) also includes a liquid reservoir (1105) installed inside the guide block (10), an electric push rod (1106) installed on the top of the liquid reservoir (1105), a pressure plate (1107) installed at the output end of the electric push rod (1106), and an oil-absorbing cotton (1108) set at the bottom of the pressure plate (1107).

8. A high-balance self-calibrating hydraulic pile driver according to claim 7, characterized in that: The pressure plate (1107) is slidably connected to the inner wall of the liquid storage shell (1105), and the liquid storage shell (1105) is connected to an inlet pipe (12) on one side.

9. A high-balance self-calibrating hydraulic pile driver according to claim 5, characterized in that: The guide block (10) has an injection groove (13) inside, and an injection pipe (14) is connected to one side of the injection groove (13). The other end of the injection pipe (14) is connected to the liquid storage shell (1105).

10. A high-balance self-calibrating hydraulic pile driver according to claim 1, characterized in that: The top of the support base (1) is fixedly connected to a counterweight (15), and the bottom of the support base (1) is fixedly connected to a stabilizing base plate (16).

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