Diesel pile driver

Abstract

The utility model provides a kind of diesel pile driver, including shell, two drive shafts, multiple eccentric blocks and drive assembly;The shell bottom is provided with the slide of vertical extension, the clamping piece for fixing pile body is slidably arranged in slide;Two drive shafts are horizontally symmetrical distribution in shell, and both ends are rotatably connected with shell, and adjustable connecting piece is equipped on each drive shaft;Each eccentric block is connected to each adjustable connecting piece respectively;Drive assembly is connected with two drive shafts, and is used to drive two drive shafts synchronous reverse rotation;Wherein, adjustable connecting piece is used to adjust the center of gravity of eccentric block and the interval of drive shaft.The diesel pile driver provided by the utility model changes the position of eccentric block on adjustable connecting piece to change the interval of the center of gravity of eccentric block and drive shaft, and then changes the amplitude of vibration, enhances the adaptability to complex working conditions of construction site when pile driving in flood rescue.

Description

Technical Field

[0001] This utility model belongs to the field of flood control and disaster relief pile driving technology, specifically relating to a diesel pile driver. Background Technology

[0002] In flood control and disaster relief operations, pile drivers are crucial equipment for reinforcing dikes and sealing breaches. They achieve pile driving through vibration. Pile drivers typically rely on a power unit to drive an eccentric block to rotate, generating centrifugal force, which in turn creates periodic vibration impacts. This vibrational energy is transferred to the pile, causing it to overcome soil resistance and sink, thus quickly completing emergency tasks such as dike reinforcement and firewood bundling.

[0003] However, in existing pile drivers employing eccentric vibration, the eccentric blocks are mostly designed with a fixed structure, meaning the relative position of the eccentric block and the drive shaft is not adjustable, resulting in a fixed vibration amplitude. This type of pile driver cannot adapt to actual operational needs when facing different soil conditions or pile sizes. In soft soil foundations, a fixed, large amplitude may cause the pile to sink too quickly, easily leading to pile tilting or damage; while in hard soil foundations, a fixed, smaller amplitude reduces pile driving efficiency, failing to meet the urgent time requirements of flood control and disaster relief. The fixed eccentric block structure makes it difficult to adjust the amplitude in real time according to changes in soil conditions during construction, thus affecting pile driving quality and operational efficiency. Utility Model Content

[0004] This utility model provides a diesel pile driver, which aims to improve the adaptability of pile driving operations to different operating scenarios and optimize pile driving quality.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a diesel pile driver is provided, comprising a housing, two drive shafts, multiple eccentric blocks, and a drive assembly; a vertically extending slide rail is provided at the bottom of the housing, and a clamping member for fixing the pile body is slidably disposed within the slide rail; the two drive shafts are horizontally symmetrically distributed within the housing, and both ends are rotatably connected to the housing, and each drive shaft is provided with an adjustable connector; each eccentric block is respectively connected to each adjustable connector; the drive assembly is connected to the two drive shafts and is used to drive the two drive shafts to rotate synchronously in opposite directions; wherein, the adjustable connectors are used to adjust the distance between the center of gravity of the eccentric block and the drive shaft.

[0006] In one possible implementation, the adjustable connector includes a mounting piece and two adjusting rods; the mounting piece is sleeved on the drive shaft; both adjusting rods are slidably mounted on the mounting piece, and one end of each adjusting rod is connected to an eccentric block.

[0007] For example, the mounting component includes a bushing and two mounting plates. The bushing is sleeved on the drive shaft. The two mounting plates are both disposed on the bushing and are located on both sides of the drive shaft. Each mounting plate has a vertically formed sliding hole, and the two adjusting rods slide in cooperation with the mounting plates through the sliding holes.

[0008] In some embodiments, the eccentric block is arc-shaped and its two ends are respectively connected to one of the adjusting rods; a first limiting hole is provided on the mounting plate, and the first limiting hole communicates with the sliding hole; multiple second limiting holes are provided at intervals along the length of the adjusting rod; one of the second limiting holes is aligned with the first limiting hole and is fixed by a limiting rod passing through it.

[0009] In one possible implementation, the mounting component further includes a mounting bracket mounted on a mounting plate, with a mounting space between the mounting bracket and the mounting plate to accommodate the eccentric block; multiple counterweights are detachably connected to the mounting bracket.

[0010] For example, the mounting bracket is arc-shaped and has fixing sleeves at both ends, with the two fixing sleeves respectively fitted onto the ends of the two mounting plates.

[0011] For example, the mounting bracket has multiple mounting slots spaced apart, and each counterweight is inserted and fixed into a corresponding mounting slot.

[0012] For example, each drive shaft is provided with a transmission gear, the two transmission gears are connected in a transmission connection, and one of the drive shafts is connected to the drive assembly.

[0013] In some embodiments, the drive assembly includes a diesel power source and a flexible drive shaft; one end of the flexible drive shaft is connected to the diesel power source, and the other end is connected to one of the drive shafts.

[0014] In one possible implementation, the clamping element is used to fit onto the pile body and its side wall is provided with a positioning rod, which is used to abut against the pile body.

[0015] The beneficial effects of the diesel pile driver provided by this utility model are as follows: Compared with the prior art, this utility model fixes the pile body by a clamping member slidably set at the bottom of the shell, ensuring that the vibration energy is concentrated on the downward direction of the pile body, reducing ineffective energy consumption and improving pile driving efficiency. Two horizontally symmetrically distributed drive shafts, whose ends are rotatably connected to the shell, rotate synchronously in opposite directions, causing the horizontal centrifugal force of each eccentric block on the drive shaft to cancel each other out and the vertical centrifugal force to be superimposed, thereby driving the shell to vibrate up and down, and the vibration is transmitted to the pile body to realize the pile driving operation. The position of the eccentric block on the adjustable connector can be changed to change the distance between its center of gravity and the drive shaft. By flexibly adjusting the eccentricity, the vibration amplitude can be changed, which can solve the problem that the fixed eccentric block in the prior art cannot adapt to different soil conditions or different specifications of pile bodies, enhance the adaptability to complex working conditions at the construction site during flood control and disaster relief pile driving, and improve the pile driving quality. Attached Figure Description

[0016] Figure 1 A front view structural schematic diagram of the diesel pile driver provided in an embodiment of this utility model; Figure 2 A three-dimensional structural schematic diagram of the diesel pile driver provided in an embodiment of this utility model; Figure 3 This is a three-dimensional structural diagram of the adjustable connector used in the embodiments of this utility model; Figure 4 This is an exploded view of the adjustable connector used in the embodiments of this utility model. Figure 5 This is a three-dimensional structural diagram of the drive shaft used in an embodiment of the present utility model.

[0017] In the diagram: 10. Housing; 11. Slide rail; 12. Clamping component; 13. Positioning rod; 20. Drive shaft; 21. Transmission gear; 30. Adjustable connector; 31. Mounting component; 311. Bushing; 312. Mounting plate; 313. Sliding hole; 314. First limiting hole; 32. Adjusting rod; 321. Second limiting hole; 33. Limiting rod; 34. Mounting bracket; 341. Fixing sleeve; 342. Mounting groove; 343. Third limiting hole; 35. Counterweight; 351. Fourth limiting hole; 40. Eccentric block; 50. Drive assembly; 51. Diesel power source; 52. Transmission flexible shaft; 60. Pile body. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on the other element. It should be understood that the terms "length," "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] Please refer to the following: Figures 1 to 5 The diesel pile driver provided by this utility model is described below. The diesel pile driver includes a housing 10, two drive shafts 20, multiple eccentric blocks 40, and a drive assembly 50. A vertically extending slide rail 11 is provided at the bottom of the housing 10, and a clamping member 12 for fixing the pile body 60 is slidably arranged in the slide rail 11. The two drive shafts 20 are horizontally symmetrically distributed in the housing 10, and both ends are rotatably connected to the housing 10. Each drive shaft 20 is provided with an adjustable connecting member 30. Each eccentric block 40 is connected to each adjustable connecting member 30. The drive assembly 50 is connected to the two drive shafts 20 and is used to drive the two drive shafts 20 to rotate synchronously in opposite directions. The adjustable connecting member 30 is used to adjust the distance between the center of gravity of the eccentric block 40 and the drive shaft 20.

[0021] It should be noted that there is a gap between the center of gravity of the eccentric block 40 and the drive shaft 20. When the eccentric block 40 rotates with the drive shaft 20, it generates centrifugal force. The centrifugal forces generated by multiple eccentric blocks 40 are superimposed, causing the housing 10 to vibrate relative to the clamping member 12. The eccentric block 40 can slide along the mounting member 31 to change the gap between its center of gravity and the drive shaft 20, thereby adjusting the magnitude of the centrifugal force and adjusting the vibration intensity. This allows the equipment to flexibly adjust the vibration intensity according to different soil conditions or the requirements of the pile 60, adapting to more operating scenarios.

[0022] When the drive assembly 50 drives the two drive shafts 20 to rotate synchronously in opposite directions, the centrifugal forces of the eccentric blocks 40 on the two drive shafts 20 in the horizontal direction can cancel each other out. The number of mounting parts 31 on both drive shafts 20 is the same, meaning the number of eccentric blocks 40 on both drive shafts 20 is the same. When the two drive shafts 20 rotate synchronously in opposite directions, the horizontal vibrations of the eccentric blocks 40 cancel each other out, resulting in only vertical vibration, which can be transmitted to the housing 10. This reduces lateral swaying during equipment vibration and improves overall stability.

[0023] The clamping member 12 is used to clamp and fix the pile body 60. When the shell 10 vibrates downward, the slide 11 moves down synchronously with the shell 10. The clamping member 12 directly applies a downward thrust to the pile body 60, concentrating the vibration energy into pile driving power. When the shell 10 vibrates upward, the slide 11 and the clamping member 12 tend to separate due to the sliding gap. The upward movement of the shell 10 will not be transmitted to the pile body 60 through the rigid connection, thus preventing the pile body 60 from being lifted upward by the clamping member 12.

[0024] Compared with existing technologies, the diesel pile driver provided by this utility model uses a clamping member 12 slidably set at the bottom of the housing 10 to fix the pile body 60, ensuring that the vibration energy is concentrated in the downward direction of the pile body 60, reducing ineffective energy consumption and improving pile driving efficiency. Two horizontally symmetrically distributed drive shafts 20, whose ends are rotatably connected to the housing 10, rotate synchronously in opposite directions, causing the horizontal centrifugal force of each eccentric block 40 on the drive shaft 20 to cancel each other out and the vertical centrifugal force to be superimposed, thereby driving the housing 10 to vibrate up and down, and the vibration is transmitted to the pile body 60 to realize the pile driving operation. The position of the eccentric block 40 on the adjustable connecting member 30 can be changed to change the distance between its center of gravity and the drive shaft 20. By flexibly adjusting the eccentricity, the vibration amplitude can be changed, which can solve the problem that the fixed eccentric block 40 in the prior art cannot be adapted to different soil conditions or different specifications of pile body 60, enhance the adaptability to complex working conditions at the construction site during flood control and disaster relief pile driving, and improve the pile driving quality.

[0025] Please see Figure 2 and Figure 3 The adjustable connector 30 includes a mounting part 31 and two adjusting rods 32; the mounting part 31 is sleeved on the drive shaft 20; the two adjusting rods 32 are slidably mounted on the mounting part 31, and one end of each adjusting rod 32 is connected to an eccentric block 40.

[0026] It should be noted that the mounting component 31, as the mounting carrier for the eccentric block 40, can drive the eccentric block 40 to rotate with the drive shaft 20 to generate centrifugal force. The adjusting rod 32 is slidably connected to the mounting component 31 along the axial direction of the drive shaft 20 and is connected to the eccentric block 40. It can change the distance between the center of gravity of the eccentric block 40 and the drive shaft 20 by sliding on the mounting component 31, thereby changing the centrifugal force generated by the eccentric block 40 during rotation, changing the vibration magnitude, and adapting to piling operations under different soil conditions.

[0027] Please see Figure 3 The mounting component 31 includes a bushing 311 and two mounting plates 312. The bushing 311 is sleeved on the drive shaft 20. The two mounting plates 312 are both mounted on the bushing 311 and are located on both sides of the drive shaft 20. Each of the two mounting plates 312 has a vertically formed sliding hole 313. Both adjusting rods 32 slide in cooperation with the mounting plates 312 through the sliding hole 313.

[0028] It should be noted that the two mounting plates 312 are fixed on the bushing 311 and are located on both sides of the drive shaft 20, forming a symmetrical distribution. Each mounting plate 312 has a vertically protruding sliding hole 313. The adjusting rod 32 is slidably connected to the sliding hole 313, and the eccentric block 40 slides along the axial direction of the drive shaft 20 via the adjusting rod 32. The bushing 311 is fitted onto the drive shaft 20. When the drive shaft 20 rotates, it drives the mounting plates 312 on both sides to rotate synchronously, which in turn drives the eccentric block 40 connected to the adjusting rod 32 to rotate, generating centrifugal force. When the eccentric block 40 slides along the sliding hole 313 of the mounting plate 312 following the adjusting rod 32, its position relative to the drive shaft 20 changes, thereby adjusting the distance between the center of gravity and the drive shaft 20.

[0029] The combination of bushing 311 and mounting plate 312 provides a stable mounting and sliding carrier for eccentric block 40, ensuring that eccentric block 40 is not easily deviated during rotation and sliding, thus improving the reliability of the structure. The two mounting plates 312 are symmetrically distributed and have sliding holes 313, which makes the adjustment of the adjusting rod 32 more stable when it drives the eccentric block 40 to slide, avoiding vibration imbalance of eccentric block 40 caused by force on one side of adjusting rod 32, and enhancing the stability of equipment operation.

[0030] Please see Figure 3 and Figure 4 The eccentric block 40 is arc-shaped, and its two ends are respectively connected to one of the adjusting rods 32; the mounting plate 312 is provided with a first limiting hole 314, which is connected to the sliding hole 313; the adjusting rod 32 is provided with a plurality of second limiting holes 321 at intervals along its length; one of the second limiting holes 321 is aligned with the first limiting hole 314 and is fixed by a limiting rod 33.

[0031] It should be noted that the arc-shaped structure naturally causes the center of gravity of the eccentric block 40 to deviate from the drive shaft 20, which can stably generate centrifugal force when rotating. When it is necessary to adjust the vibration intensity, the sliding of the adjusting rod 32 in the sliding hole 313 drives the arc-shaped eccentric block 40 to move as a whole, changing the distance between its center of gravity and the drive shaft 20, thereby adjusting the magnitude of the centrifugal force. The cooperation between the adjusting rods 32 at both ends and the sliding hole 313 ensures that the eccentric block 40 always maintains a stable connection with the mounting plate 312 during sliding and rotation, and does not deviate from the track.

[0032] The arc-shaped structure enhances the structural strength of the eccentric block 40, making it more resistant to deformation when rotating with the drive shaft 20. This reduces damage caused by excessive centrifugal force and improves the durability of the equipment. The way the adjusting rods 32 at both ends cooperate with the sliding hole 313 prevents the eccentric block 40 from getting stuck or shifting during sliding adjustment, making the center of gravity adjustment more precise.

[0033] The mounting plate 312 has a first limiting hole 314 that communicates with the sliding hole 313. The adjusting rod 32 has multiple second limiting holes 321 spaced along its length. When the eccentric block 40 slides to a specific position within the sliding hole 313 of the mounting plate 312 via the adjusting rod 32, one of the second limiting holes 321 aligns with the first limiting hole 314. The limiting rod 33 passes through the aligned first limiting hole 314 and second limiting holes 321, fixing the adjusting rod 32 in its current position. One end of the limiting rod 33 may have a cap with a diameter larger than the limiting hole, and the other end can be locked from the reverse direction by inserting a positioning pin. After the positioning pin passes through a pre-set pin hole in the rod body, it forms a blockage with the other side of the mounting plate 312, creating a bidirectional locking structure with the cap, completely restricting the axial movement of the limiting rod 33.

[0034] When it is necessary to adjust the center of gravity of the eccentric block 40, pull out the positioning pin and pull out the limiting rod 33, so that the adjusting rod 32 can slide along the sliding hole 313; after sliding to the target position, align a second limiting hole 321 on the adjusting rod 32 with the first limiting hole 314 on the mounting plate 312, insert the limiting rod 33 to fix it, at this time the distance between the center of gravity of the eccentric block 40 and the drive shaft 20 is locked; when the fixed eccentric block 40 rotates with the drive shaft 20, it can stably maintain the set centrifugal force, ensuring the consistency of vibration intensity.

[0035] By cooperating with the limiting hole and the limiting rod 33, the eccentric block 40 can be stably fixed in the adjusted position, preventing it from shifting due to inertia or external force during high-frequency rotational vibration, thus ensuring the stability of vibration parameters. The interval setting of multiple second limiting holes 321 provides multiple position options for the eccentric block 40, making the adjustment of the distance between the center of gravity and the drive shaft 20 more precise, and meeting the refined requirements for vibration intensity under different working scenarios.

[0036] Please see Figure 3 and Figure 4 The mounting component 31 also includes a mounting bracket 34, which is mounted on the mounting plate 312 and has a mounting space between the mounting bracket 34 and the mounting plate 312 to accommodate the eccentric block 40; a plurality of counterweights 35 are detachably connected to the mounting bracket 34.

[0037] It should be noted that the mounting bracket 34 is mounted on the mounting plate 312, forming a space between the bracket and the mounting plate 312. This space can accommodate the eccentric block 40 when the distance between the center of gravity and the drive shaft 20 is at its maximum. Multiple counterweights 35 are detachably connected to the mounting bracket 34, forming a combined structure with the mounting bracket 34, and can move synchronously with the mounting plate 312, the bushing 311, and the drive shaft 20.

[0038] Mounting frame 34 provides a mounting carrier for counterweight 35. When counterweight 35 is installed on mounting frame 34, it will rotate with drive shaft 20 along with components such as eccentric block 40, mounting plate 312, and bushing 311. The addition or removal of counterweight 35 will change the mass distribution of the overall rotating structure, thereby affecting the magnitude of centrifugal force generated during rotation. Since counterweight 35 is detachable, its quantity can be flexibly changed according to operational needs, thereby adjusting the vibration energy of the equipment and adapting to different soil conditions or pile driving requirements of pile body 60 specifications.

[0039] The detachable design of the counterweight 35 allows the equipment to flexibly adjust the vibration intensity by adding or removing counterweights, forming a dual adjustment mechanism with the position adjustment of the eccentric block 40, thus expanding the equipment's adaptability to different operating scenarios. The installation space formed by the mounting frame 34 and the mounting plate 312 limits the eccentric block 40, preventing it from shifting due to vibration during rotation and enhancing the stability of the structure. The counterweight 35 allows for adjustment of vibration energy without changing the core structure of the eccentric block 40, simplifying the adjustment method under high-intensity vibration requirements. It is especially suitable for the need to quickly respond to complex geological conditions during flood control and disaster relief, improving operational efficiency.

[0040] Please see Figure 3 and Figure 4 The mounting bracket 34 is arc-shaped and has fixing sleeves 341 at both ends. The two fixing sleeves 341 are respectively fitted onto the ends of the two mounting plates 312.

[0041] It should be noted that the mounting bracket 34 can be arc-shaped. The arc structure naturally shifts the center of gravity of the mounting bracket 34 away from the drive shaft 20, and enhances its resistance to deformation when rotating with the drive shaft 20, reducing damage caused by excessive centrifugal force. The shape of the counterweight 35 matches the shape of the mounting groove 342, enabling a plug-in fit with the mounting groove 342. Both ends of the mounting bracket 34 are provided with fixing sleeves 341, which are respectively fitted onto the ends of the two mounting plates 312. When the drive shaft 20 drives the mounting bracket 34 to rotate, the mounting bracket 34 achieves a tight connection with the mounting plate 312 through its own shape and the fixed connection between the fixing sleeves 341 and the mounting plate 312, preventing the mounting bracket 34 from rotating and falling off.

[0042] Please see Figure 3 and Figure 4 The mounting bracket 34 is provided with multiple mounting slots 342 at intervals, and each counterweight 35 is inserted and fixed into each mounting slot 342 respectively.

[0043] It should be noted that multiple mounting slots 342 are spaced apart on the mounting bracket 34, and the counterweight 35 corresponds one-to-one with the mounting slot 342, and is installed on the mounting bracket 34 by plugging and connecting. The shape of the counterweight 35 is adapted to the shape of the mounting slot 342, so as to achieve plugging and fixing with the mounting slot 342.

[0044] The mounting bracket 34 may be provided with a third limiting hole 343, and the counterweight 35 may be provided with a fourth limiting hole 351. When it is necessary to install the counterweight 35 to increase the centrifugal force of rotation, a certain number of counterweights 35 are inserted into the mounting slots 342 of the mounting bracket 34, and the initial positioning is achieved by the plug-in fit; after positioning, the fourth limiting hole 351 of the counterweight 35 is naturally aligned with the third limiting hole 343 of the mounting bracket 34, and is fixed by bolts to ensure that the counterweight 35 does not fall off when the equipment vibrates and rotates; when the counterweight needs to be adjusted, the bolts can be removed to take out the counterweight 35, and the above steps are repeated after increasing or decreasing the number, so as to adjust the centrifugal force of rotation by changing the overall counterweight mass.

[0045] The mounting slot 342, in conjunction with the plug, provides an installation position for the counterweight 35, ensuring that the limiting holes can be quickly aligned, reducing loading and unloading time, and adapting to the emergency operation needs of flood control and disaster relief. The third and fourth limiting holes 351, in conjunction with the bolts, firmly lock the counterweight 35 onto the mounting frame 34, preventing the counterweight 35 from loosening or falling off due to high-frequency vibration, and ensuring the safe operation of the equipment. The spacing of multiple mounting slots 342 and limiting holes allows for flexible addition or reduction of the number of counterweights 35, enabling more precise adjustment of vibration energy and better adapting to different soil hardness or pile 60 specifications in different operating scenarios.

[0046] Please see Figure 5 Each drive shaft 20 is equipped with a transmission gear 21, and the two transmission gears 21 are connected in a transmission manner, and one of the drive shafts 20 is connected to the drive assembly 50.

[0047] It should be noted that after the drive assembly 50 is started, it transmits power to one of the drive shafts 20 connected to it, which in turn drives the transmission gear 21 to rotate. The transmission gears 21 on the two drive shafts 20 are meshed and connected, and the actively rotating transmission gear 21 drives the other drive shaft 20 to rotate synchronously in the opposite direction.

[0048] The meshing connection of the transmission gear 21 can strictly ensure the synchronous reverse rotation of the two drive shafts 20, avoid vibration imbalance caused by power transmission deviation, and enhance the stability of equipment operation; the rigid connection of gear transmission has low power loss and can efficiently transfer the energy of the drive component 50 to the drive shaft 20, improving power utilization efficiency; the structure is simple and highly reliable, and it is not easy to fail in the high-frequency vibration working environment, which is suitable for the need for continuous and stable operation of equipment in flood control and disaster relief.

[0049] Please see Figure 1 The drive assembly 50 includes a diesel power source 51 and a drive shaft 52; one end of the drive shaft 52 is connected to the diesel power source 51, and the other end is connected to one of the drive shafts 20.

[0050] It should be noted that the diesel power source 51 can be a power unit with an internal combustion engine as its core, generating energy and outputting power by burning diesel fuel. Diesel fuel is compressed by high-pressure air in the engine cylinder and ignited, producing high-temperature, high-pressure gas that drives the piston in reciprocating motion. The crankshaft then converts the linear motion into rotational motion, ultimately outputting rotational power. In the diesel pile driver, the diesel power source 51 serves as the core power unit, providing energy to drive the drive shaft 20. It boasts high power, strong performance, and long endurance, making it suitable for scenarios requiring high-intensity, continuous operation, such as flood control and disaster relief.

[0051] The flexible drive shaft 52 is a flexible power transmission component, consisting of an internal steel wire core and an external protective sleeve, which can be bent and deformed within a certain range. Its function is to transmit the rotational motion output from the diesel power source 51 to one of the drive shafts 20, and it can adapt to relative displacement or angular changes at the two ends. The rotational power output from the diesel power source 51 is transmitted to the other end through the steel wire core inside the flexible shaft, driving the drive shaft 20 to rotate, and then driving the two drive shafts 20 to rotate synchronously in opposite directions through the transmission gear 21. Because the equipment generates high-frequency vibrations during piling operations, the flexibility of the flexible drive shaft 52 can buffer the impact of vibrations, avoiding damage to components caused by rigid connections, while also allowing for more flexible installation positions of the power source and gears.

[0052] Please see Figure 1 The clamping member 12 is used to be fitted onto the pile body 60 and its side wall is provided with a positioning rod 13, which is used to abut against the pile body 60.

[0053] It should be noted that when the clamping member 12 fixes the pile body 60 in the slide 11, the positioning rod 13 applies pressure to the pile body 60 from the side, firmly fixing the pile body 60 in the preset position, preventing the pile body 60 from shifting or rotating laterally due to vibration during the pile driving process; even if the pile body 60 sways slightly due to uneven soil resistance, the positioning rod 13 can provide reverse support force by abutting, maintaining the vertical posture of the pile body 60, and ensuring that the vibration energy is efficiently transmitted to the soil along the axial direction of the pile body 60.

[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A diesel-powered pile driver, characterized in that, include: The shell has a vertically extending slide rail at the bottom, and a clamping member for fixing the pile body is slidably disposed in the slide rail; Two drive shafts are horizontally symmetrically distributed inside the housing, and both ends are rotatably connected to the housing. Each drive shaft is provided with an adjustable connector. Multiple eccentric blocks are respectively connected to each of the adjustable connectors; A drive assembly, connected to the two drive shafts, is used to drive the two drive shafts to rotate synchronously in opposite directions; The adjustable connector is used to adjust the distance between the center of gravity of the eccentric block and the drive shaft.

2. The diesel pile driver as described in claim 1, characterized in that, The adjustable connector includes: Mounting component, sleeved on the drive shaft; Both adjusting rods are slidably mounted on the mounting component, and one end of each adjusting rod is connected to the eccentric block.

3. The diesel pile driver as described in claim 2, characterized in that, The mounting component includes a bushing and two mounting plates. The bushing is sleeved on the drive shaft. The two mounting plates are both disposed on the bushing and are located on both sides of the drive shaft. Each of the two mounting plates has a vertically formed sliding hole, and the two adjusting rods slide in cooperation with the mounting plates through the sliding holes.

4. The diesel pile driver as described in claim 3, characterized in that, The eccentric block is arc-shaped, and its two ends are respectively connected to one of the adjusting rods; the mounting plate is provided with a first limiting hole, which communicates with the sliding hole; the adjusting rod is provided with a plurality of second limiting holes at intervals along its length; one of the second limiting holes is aligned with the first limiting hole and is fixed by a limiting rod.

5. The diesel pile driver as described in claim 3, characterized in that, The mounting component also includes a mounting bracket, which is mounted on the mounting plate, and there is a mounting space between the mounting bracket and the mounting plate to accommodate the eccentric block; multiple counterweights are detachably connected to the mounting bracket.

6. The diesel pile driver as described in claim 5, characterized in that, The mounting bracket is arc-shaped and has fixing sleeves at both ends. The two fixing sleeves are respectively fitted onto the ends of the two mounting plates.

7. The diesel pile driver as described in claim 5, characterized in that, The mounting frame is provided with multiple mounting slots at intervals, and each counterweight is inserted and fixed into each mounting slot respectively.

8. The diesel pile driver as described in claim 1, characterized in that, Each of the drive shafts is provided with a transmission gear, the two transmission gears are connected in a transmission connection, and one of the drive shafts is connected to the drive assembly.

9. The diesel pile driver as described in claim 1, characterized in that, The drive assembly includes a diesel power source and a flexible drive shaft; one end of the flexible drive shaft is connected to the diesel power source, and the other end is connected to one of the drive shafts.

10. The diesel pile driver as described in any one of claims 1-9, characterized in that, The clamping member is used to fit onto the pile body and has a positioning rod on its side wall, the positioning rod being used to abut against the pile body.

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