Pile driver with self-righting function

Abstract

The invention relates to the technical field of vibratory hammers, in particular to a pile driver with a self-righting function, which comprises a fixing frame, a shell, a first rotating shaft, a second rotating shaft, an adjusting assembly, a pendulum bob and a driving assembly, the shell is slidably arranged on the fixing frame, the first rotating shaft and the second rotating shaft are rotatably arranged on the shell, and the second rotating shaft rotates around the first rotating shaft on the shell; the first rotating shaft and the second rotating shaft generate resultant force perpendicular to the connecting line direction of the two rotating shafts during autorotation and drive the shell to slide on the fixing frame. The adjusting assembly is used for driving the second rotating shaft to rotate around the first rotating shaft; the pendulum bob is rotationally arranged on the fixing frame, and the gravity center of the pendulum bob is located below the rotating axis of the pendulum bob; the driving assembly is used for driving the shell to rotate when the gravity center of the pendulum bob is located on the axis of the foundation pile. The adjusting assembly is arranged to change the position of the second rotating shaft relative to the first rotating shaft, so that the direction of resultant force generated by rotation of the first rotating shaft and the second rotating shaft is changed, and the inclined foundation pile can be straightened.

Description

Technical Field

[0001] The present invention relates to the technical field of vibratory hammers, in particular to a pile driver with a self-righting function. Background Art

[0002] In the construction industry, vibratory hammers play a key role in pile construction due to the periodic vibrations they generate. Through high-frequency vibrations, they liquefy the soil surrounding the piles, significantly reducing pile-soil resistance and enabling rapid pile sinking. This ensures close contact between the pile pipe and the deep, hard soil, providing a solid foundation for the building structure.

[0003] When a vibratory hammer continuously strikes a foundation pile, the reaction force continuously acts on the pile, causing it to shift its sinking path and tilt. Tilts in piles fail to meet the project's verticality requirements and are considered substandard construction. If such substandard piles are put into use, they can lead to uneven stress on the building structure, greatly increasing the risk of subsequent cracking, subsidence, and even collapse, posing a serious threat to building safety. Summary of the Invention

[0004] Based on this, it is necessary to provide a pile driver with a self-righting function to address the problem that the current foundation piles tilt during settlement.

[0005] The above purpose is achieved through the following technical solutions: A pile driver with a self-righting function includes a fixed frame, a vibrating mechanism, a clamping mechanism and a detection mechanism. The fixed frame is arranged to rotate around the axis of the pile foundation. The vibrating mechanism includes a shell, a first rotating shaft, a second rotating shaft and an adjustment component. The shell is slidably arranged on the fixed frame, the first rotating shaft and the second rotating shaft are rotatably arranged on the shell, and the second rotating shaft rotates around the first rotating shaft on the shell. The first rotating shaft and the second rotating shaft are arranged in parallel and extend in a first direction, the first direction is perpendicular to the extension direction of the axis of the pile foundation. A spacing is provided between the first rotating shaft and the second rotating shaft, and eccentric blocks are respectively provided on the first rotating shaft and the second rotating shaft. When the first rotating shaft and the second rotating shaft rotate, a resultant force perpendicular to the direction of the line connecting the two is generated. And drives the shell to slide on the fixed frame; the adjusting assembly is used to drive the second rotating shaft to rotate around the first rotating shaft; the clamping mechanism includes a mounting plate and a clamping claw, the mounting plate is slidably set on the shell, the mounting plate is rotatably connected to the shell, and the clamping claw is used to clamp the foundation pile; the detection mechanism includes a pendulum and a driving assembly, the pendulum is rotatably set on the fixed frame, the rotation axis of the pendulum extends along the first direction, the center of gravity of the pendulum is located below its rotation axis, the axis of the foundation pile coincides with the rotation axis of the mounting plate and the extension line passes through the rotation axis of the pendulum, the fixed frame, the shell, the mounting plate and the foundation pile are arranged in sequence along the axial direction of the foundation pile; the driving assembly is used to drive the shell to rotate when the center of gravity of the pendulum is located on the axis of the foundation pile.

[0006] Preferably, the adjustment component includes a sliding frame and a power piece, an arc groove is provided on the shell, the arc groove is coaxial with the first rotating shaft, the second rotating shaft is slidably set in the arc groove, the sliding frame is slidably set in the shell along the second direction, the second direction is perpendicular to the first direction and the extension direction of the pile axis, a guide groove is provided on the sliding frame, the second rotating shaft is slidably set in the guide groove along the second direction, the guide groove is inclined in the second direction, and the guide groove gradually moves away from the mounting plate from the side close to the first rotating shaft to the side close to the second rotating shaft, and the power piece is used to drive the sliding frame to slide in the shell.

[0007] Preferably, when the foundation pile is vertical, the center of gravity of the pendulum is located on the axis of the foundation pile and can rotate in both directions around its own rotation axis. The first rotating shaft and the second rotating shaft are located on the same horizontal plane, and the second rotating shaft is spaced apart from both ends of the guide groove and the arc groove in the extension direction respectively; there are two power members, and the two power members are located on both sides of the sliding frame in the second direction.

[0008] Preferably, the driving assembly includes a fixed column, a slider and a rotating wheel. The fixed column is arranged between the shell and the mounting plate. The mounting plate is connected to the shell through the fixed column. The mounting plate is rotatably connected to the fixed column and is slidably connected along the axial direction of the mounting plate. A spiral groove is provided on the circumferential surface of the fixed column. The slider is slidably arranged in the spiral groove. The rotating wheel is rotatably arranged on the slider and rotates unidirectionally relative to the slider. The rotating wheel is always in contact with the mounting plate; when the shell and the mounting plate are away from each other, the rotating wheel can rotate relative to the slider.

[0009] Preferably, the driving assembly further comprises a second spring, which is arranged in the spiral groove and is used to provide a thrust for the slider to approach the mounting plate.

[0010] Preferably, the drive assembly further includes a second pull rope, the second pull rope sleeve is arranged in the second spring, one end of the second pull rope is connected to the slider, and the other end of the second pull rope passes through the fixed column and the shell and is connected to the slide frame.

[0011] Preferably, a guide column is provided on the fixing frame, and the guide column extends along the axial direction of the foundation pile. An ear plate is provided on the shell, and the guide column passes through the ear plate and is slidably connected to the ear plate. A baffle is provided on the guide column, and the baffle is located on the side of the ear plate close to the foundation pile. A third spring and a fourth spring are sleeved on the guide column, and the two ends of the third spring are respectively connected to the baffle and the ear plate, and the two ends of the fourth spring are respectively connected to the ear plate and the fixing frame.

[0012] Preferably, a motor is provided on the housing, and the motor is used to drive the first rotating shaft to rotate. The first rotating shaft and the second rotating shaft are respectively provided with gears of the same size, and the two gears are meshed.

[0013] Preferably, the clamp includes a plurality of clamps, each of which is rotatably connected to the mounting plate, and the plurality of clamps are evenly distributed around the axis of the mounting plate. A plurality of hydraulic rods are provided on the mounting plate, and each hydraulic rod corresponds to a clamp. One end of the hydraulic rod is rotatably set on the mounting plate, and the other end is rotatably set on the clamp.

[0014] Preferably, the pile driver with self-righting function also includes a loading mechanism, which is used to lift the fixed frame. The fixed frame is provided with a lifting lug, which is rotatably connected to the fixed frame. The axis of the foundation pile coincides with the rotation axis of the lifting lug, and the lifting lug is connected to the loading mechanism through a steel cable.

[0015] The beneficial effects of the present invention are as follows: through the rotational coordination of the housing and the mounting plate, the housing can rotate relative to the mounting plate; a pendulum is provided, and when the foundation pile is vertically inserted into the foundation pit, the center of gravity of the pendulum is located on the extension line of the foundation pile axis, and the drive assembly drives the housing to rotate about the foundation pile axis. When the foundation pile tilts, the housing and the fixing frame will also tilt, and the pendulum will rotate about its own axis due to its own gravity. An adjustment assembly is provided to change the position of the second rotating shaft relative to the first rotating shaft, thereby changing the direction of the resultant force generated by the rotation of the first and second rotating shafts, thereby promoting the straightening of the tilted foundation pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a pile driver with a self-righting function provided by an embodiment of the present invention; Figure 2 A front view of a pile driver with a self-righting function provided by an embodiment of the present invention; Figure 3 A top view of a pile driver with a self-righting function provided by an embodiment of the present invention; Figure 4 for Figure 3 Cross-sectional view along the AA axis; Figure 5 for Figure 4 Enlarged view of point C in the middle; Figure 6 for Figure 4 Enlarged view of point D in the middle; Figure 7 for Figure 3 Cross-sectional view along the BB direction; Figure 8 A schematic structural diagram of a drive assembly of a pile driver with a self-righting function provided by an embodiment of the present invention; Figure 9 A split diagram of a drive assembly of a pile driver with a self-righting function provided by an embodiment of the present invention; Figure 10 A schematic structural diagram of a sliding frame of a pile driver with a self-righting function provided by an embodiment of the present invention.

[0017] in: 101. Fixing frame; 102. Guide column; 103. Ear plate; 104. Baffle; 105. Third spring; 106. Fourth spring; 107. Rotating column; 108. U-shaped rod; 109. Accommodating groove; 110. Closing plate; 111. Protective shell; 121. Shell; 122. First rotating shaft; 123. Second rotating shaft; 124. Arc groove; 125. Slide plate; 126. Connecting plate; 127. First pulling Rope; 128. First spring; 129. Guide groove; 130. Motor; 141. Pendulum; 142. Fixed column; 143. Slider; 144. Rotor; 145. Groove; 146. Cylinder; 147. Chassis; 148. Spiral groove; 149. Fixed shaft; 150. Second spring; 151. Second pull rope; 152. Mounting plate; 153. Clamp; 154. Hydraulic rod; 155. Pull plate. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0020] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0021] like Figures 1 to 10As shown, an embodiment of the present invention provides a pile driver with a self-righting function, including a fixed frame 101, a vibrating mechanism, a clamping mechanism and a detection mechanism. The fixed frame 101 is rotatably arranged around the axis of the pile foundation. The vibrating mechanism includes a shell 121, a first rotating shaft 122, a second rotating shaft 123 and an adjusting assembly. The shell 121 is slidably arranged on the fixed frame 101, and the first rotating shaft 122 and the second rotating shaft 123 are rotatably arranged on the shell 121, and the second rotating shaft 123 rotates around the first rotating shaft 122 on the shell 121. The first rotating shaft 122 and the second rotating shaft 123 are arranged in parallel and extend along a first direction, and the first direction is perpendicular to the extension direction of the axis of the pile foundation. A distance is provided between the first rotating shaft 122 and the second rotating shaft 123, and an eccentric block is provided on the first rotating shaft 122 and the second rotating shaft 123 respectively. When the first rotating shaft 122 and the second rotating shaft 123 rotate, a vertical direction is generated between the two rotating shafts. The resultant force in the linear direction drives the shell 121 to slide on the fixed frame 101; the adjusting component is used to drive the second rotating shaft 123 to rotate around the first rotating shaft 122; the clamping mechanism includes a mounting plate 152 and a clamping claw, the mounting plate 152 is slidably set on the shell 121, the mounting plate 152 is rotatably connected to the shell 121, and the clamping claw is used to clamp the foundation pile; the detection mechanism includes a pendulum 141 and a driving component, the pendulum 141 is rotatably set on the fixed frame 101, the rotation axis of the pendulum 141 extends along the first direction, the center of gravity of the pendulum 141 is located below its rotation axis, the axis of the foundation pile coincides with the rotation axis of the mounting plate 152 and the extension line passes through the rotation axis of the pendulum 141, the fixed frame 101, the shell 121, the mounting plate 152 and the foundation pile are arranged in sequence along the axial direction of the foundation pile; the driving component is used to drive the shell 121 to rotate when the center of gravity of the pendulum 141 is located on the axis of the foundation pile.

[0022] The housing 121 and mounting plate 152 rotate together, allowing the housing 121 to rotate relative to the mounting plate 152. A pendulum 141 is provided. When the pile is vertically inserted into the foundation pit, the center of gravity of the pendulum 141 lies on an extension of the pile's axis, and the drive assembly drives the housing 121 to rotate about the pile's axis. When the pile tilts, the housing 121 and mounting bracket 101 also tilt, causing the pendulum 141 to rotate about its axis due to its own gravity. An adjustment assembly is provided to change the position of the second rotating shaft 123 relative to the first rotating shaft 122, thereby changing the direction of the resultant force generated by the rotation of the first and second rotating shafts 122, and generating a component force that can help the tilted pile to straighten.

[0023] In this embodiment, the adjustment assembly includes a sliding frame and a power part. An arc groove 124 is provided on the housing 121. The arc groove 124 is coaxial with the first rotating shaft 122. The second rotating shaft 123 is slidably arranged in the arc groove 124 through a bearing. The sliding frame is slidably arranged in the housing 121 along a second direction. The second direction is perpendicular to the first direction and the extension direction of the pile axis. The sliding of the sliding frame along the second direction can cause the second rotating shaft 123 to slide in the arc groove 124, thereby changing the extension direction of the line connecting the first rotating shaft 122 and the second rotating shaft 123; a guide groove 129 is provided on the sliding frame. The second rotating shaft 123 is slidably arranged in the guide groove 129 along the second direction. The guide groove 129 is inclined in the second direction. The guide groove 129 gradually moves away from the mounting plate 152 from the side close to the first rotating shaft 122 to the side close to the second rotating shaft 123. The inclination angle of the guide groove 129 is small, and the polarization force generated by the rotation of the second rotating shaft 123 is insufficient to push the sliding frame to slide along the second direction. The power member is used to drive the sliding frame to slide in the housing 121 .

[0024] In this embodiment, when the foundation pile is vertical, the center of gravity of the pendulum 141 is located on the axis of the foundation pile and can rotate in both directions around its own rotation axis. The first rotating shaft 122 and the second rotating shaft 123 are located on the same horizontal plane, and the second rotating shaft 123 is spaced apart from both ends of the guide groove 129 and the arc groove 124 in the extension direction respectively; there are two power members, and the two power members are located on both sides of the sliding frame in the second direction.

[0025] Specifically, the sliding frame includes two slides 125 and two connecting plates 126. The two slides 125 are arranged in a first direction within the housing 121 and are slidably connected to the housing 121 along a second direction. Guide grooves 129 are provided on the slides 125. A slide rail is provided within the housing 121, and the slides 125 are slidably disposed within the rail. The two connecting plates 126 are located on either side of the two slides 125 in the second direction and are respectively fixedly connected to the two slides 125. Each power member includes a first pull rope 127 and two first springs 128. One end of the first pull rope 127 is connected to one of the connecting plates 126. The other end of the first pull rope 127 passes through the housing 121 and is slidably connected to the housing 121. One end of each first spring 128 is connected to a connecting plate 126 connected to the first pull rope 127. The other end of the first spring 128 contacts the housing 121. The first springs 128 expand and contract in the second direction. The first pull rope 127 can pull the connecting plate 126, causing the first springs 128 to be compressed. When the foundation pile tilts, the housing 121 rotates at most 90 degrees to cause the pendulum 141 to deflect. The first pull rope 127 on the side to which the pendulum 141 deflects is pulled, thereby improving the detection efficiency and enabling the foundation pile to be corrected more quickly.

[0026] In another embodiment, when the pile is vertical, the pendulum 141, with its center of gravity located on the pile axis, can rotate unidirectionally about its own axis. A power element is also provided, located to one side of the pendulum 141's rotational direction. When the pile is no longer significantly tilted and the housing 121 stops rotating, the first pull rope 127 can be pulled, thereby improving the accuracy of the correction.

[0027] In this embodiment, the driving assembly includes a fixed column 142, a slider 143 and a rotating wheel 144. The fixed column 142 is arranged between the housing 121 and the mounting plate 152, and the fixed column 142 is coaxial with the foundation pile. The mounting plate 152 is connected to the housing 121 through the fixed column 142. The mounting plate 152 is rotatably connected to the fixed column 142 and is slidably connected along the axial direction of the mounting plate 152. A groove 145 is formed on the end of the fixed column 142 away from the housing 121, and a groove 145 is formed on the end of the mounting plate 152 close to the fixed column 142. A cylinder 146 is provided on the surface, and a protrusion is provided on the circumference of the cylinder 146. The protrusion is slidably set in the groove 145. The fixing column 142 is slidably connected to the shell 121 through the cylinder 146. A chassis 147 is provided on the side of the fixing column 142 close to the mounting plate 152. The chassis 147 is bolted to the fixing column 142, and the cylinder 146 passes through the chassis 147 and is slidably connected to the chassis 147. The protrusion of the cylinder 146 and the end face of the chassis 147 can abut against each other, thereby limiting the cylinder 146 from detaching from the groove 145.

[0028] A spiral groove 148 is defined on the circumference of the fixed post 142. The slider 143 slides within the spiral groove 148. The runner 144 is rotatably mounted on the slider 143 and rotates unidirectionally relative to the slider 143. The runner 144 is in constant contact with the mounting plate 152. When the housing 121 and the mounting plate 152 move away from each other, the runner 144 can rotate relative to the slider 143. A fixed shaft 149 is provided on the slider 143. The fixed shaft 149 extends radially along the fixed post 142 and is fitted with a one-way bearing. The runner 144 is mounted on the one-way bearing and is connected to the slider 143 via the one-way bearing and the fixed shaft 149. The foundation pile has a large friction force after contacting the ground. When the shell 121 and the mounting plate 152 are close to each other, due to the contact between the runner 144 and the mounting plate 152 and the runner 144 being stationary relative to the slider 143, there is friction force between the runner 144 and the mounting plate 152. Under the action of the spiral groove 148, the shell 121 rotates relative to the mounting plate 152.

[0029] As the housing 121 approaches the mounting plate 152, the slider 143 slides in the spiral groove 148, and the rotation angle relative to the fixed column 142 is less than 90 degrees. After the pile tilts and the pendulum 141 rotates about its own axis of rotation, the center of gravity of the housing 121 and the fixed frame 101 is no longer on the extension line of the pile axis, but tends to be below the pile axis. When the housing 121 moves away from the mounting plate 152, the contact pressure between the wheel 144 and the mounting plate 152 decreases, and the housing 121 and the fixed frame 101, affected by their gravity, return their centers of gravity to directly below the pile axis.

[0030] In this embodiment, the drive assembly also includes a second spring 150, which is arranged in the spiral groove 148 and is used to provide a thrust for the slider 143 to approach the mounting plate 152. The second spring 150 extends along the rotation direction of the spiral groove 148, and the two ends of the second spring 150 are respectively connected to the fixed column 142 and the slider 143. When the slider 143 moves away from the chassis 147 in the spiral groove 148, the second spring 150 is compressed.

[0031] In this embodiment, the drive assembly also includes a second pull rope 151, which is sleeved in the second spring 150, and one end of the second pull rope 151 is connected to the slider 143, and the other end of the second pull rope 151 passes through the fixed column 142 and the shell 121 and is connected to the sliding frame. A pull plate 155 is provided between the two connecting plates 126, and a channel is provided on the fixed column 142 and the shell 121. The end of the second pull rope 151 away from the slider 143 passes through the channel and is connected to the pull plate 155. When the slide 125 slides in the shell 121, it can drive the second pull rope 151 to slide through the pull plate 155. The second pull rope 151 can pull the slider 143 to slide in the spiral groove 148 and away from the chassis 147. When the pile deflects, the combined force generated by the rotation of the first and second rotating shafts 122 and 123, which causes the pile to settle, is divided into two components: one component forces the housing 121 to continue approaching the mounting plate 152, while the other component causes the pile to swing in the direction opposite to its tilt. During the correction process, the rotating wheel 144 separates from the mounting plate 152, and the housing 121 does not rotate relative to the mounting plate 152. The direction of the component forces that cause the pile to straighten is not deflected, preventing the pile from tilting in other directions during the correction process. Two sliders 143, rotating wheels 144, spiral grooves 148, second springs 150, and second pull ropes 151 are provided, respectively. One end of each second pull rope 151 is connected to the pull plate 155. Each slider 143, rotating wheel 144, spiral groove 148, second spring 150, and second pull rope 151 constitutes a set. The two sets are evenly arranged around the circumference of the fixed column 142, resulting in more uniform force distribution on the mounting plate 152 and smoother sliding relative to the fixed column 142.

[0032] The first pull rope 127 and the second pull rope 151 are both steel ropes. The end of the first pull rope 127 away from the connecting plate 126 can be connected to a thicker soft rope to facilitate the operator's grip.

[0033] In this embodiment, a guide column 102 is provided on the fixing frame 101, and the guide column 102 extends along the axial direction of the foundation pile. A lug plate 103 is provided on the shell 121, and the guide column 102 passes through the lug plate 103 and is slidably connected to the lug plate 103. A baffle 104 is provided on the guide column 102, and the baffle 104 is located on the side of the lug plate 103 close to the foundation pile. A third spring 105 and a fourth spring 106 are sleeved on the guide column 102, and the two ends of the third spring 105 are respectively connected to the baffle 104 and the lug plate 103, and the two ends of the fourth spring 106 are respectively connected to the lug plate 103 and the fixing frame 101, and the guide column 102 is threadedly connected to the fixing frame 101. The third spring 105 and the fourth spring 106 respectively provide buffering for the sliding of the shell 121 relative to the fixing frame 101.

[0034] In this embodiment, a motor 130 is provided on the shell 121, and the motor 130 is used to drive the first rotating shaft 122 to rotate. One end of the first rotating shaft 122 extends out of the shell 121, and pulleys are provided on the end of the first rotating shaft 122 located outside the shell 121 and the output shaft of the motor 130. The two pulleys are driven by belts. Gears of the same size are respectively provided on the first rotating shaft 122 and the second rotating shaft 123. The two gears are engaged. When the motor 130 drives the first rotating shaft 122 to rotate, the first rotating shaft 122 drives the second rotating shaft 123 to rotate through the gear thereon and the gear on the second rotating shaft 123. The rotation directions of the first rotating shaft 122 and the second rotating shaft 123 are opposite, so that the eccentric blocks on the first rotating shaft 122 and the second rotating shaft 123 can generate a resultant force perpendicular to the direction of the line connecting the two.

[0035] A protective shell 111 is provided on the housing 121 , and the pulley is located inside the protective shell 111 .

[0036] In this embodiment, the clamp includes a plurality of clamps 153, each clamp 153 is rotatably connected to the mounting plate 152, and the plurality of clamps 153 are evenly distributed around the axis of the mounting plate 152. The mounting plate 152 is provided with a plurality of hydraulic rods 154, each hydraulic rod 154 corresponds to a clamp 153, one end of the hydraulic rod 154 is rotatably set on the mounting plate 152, and the other end is rotatably set on the clamp 153. The extension and retraction of the hydraulic rod 154 can drive the corresponding clamp 153 to rotate on the mounting plate 152. The simultaneous extension and retraction of the plurality of hydraulic rods 154 can make the plurality of clamps 153 approach or move away from each other, thereby clamping or loosening the foundation piles.

[0037] Specifically, the number of the clamping plates 153 is greater than two, which can better clamp the foundation pile and prevent the foundation pile from deflecting relative to the mounting plate 152 .

[0038] In this embodiment, the self-righting pile driver further includes a loading mechanism for hoisting a fixed frame 101. The fixed frame is provided with a lifting lug, which is rotatably connected to the fixed frame 101. The axis of the pile coincides with the axis of rotation of the lifting lug, and the lifting lug is connected to the loading mechanism via a steel cable. The loading mechanism can be a movable crane that drives the fixed frame 101 via the steel cable, making it suitable for various applications.

[0039] The lifting lug includes a rotating column 107 and a U-shaped rod 108. The rotating column 107 is coaxial with the mounting plate 152, and one end of the rotating column 107 is provided with a boss. A receiving groove 109 is provided on the fixing frame 101, and a sealing plate 110 is provided on the fixing frame 101. The sealing plate 110 blocks the receiving groove 109. The sealing plate 110 is connected to the fixing frame 101 by bolts. One end of the rotating column 107 with the boss rotates around its own axis and is arranged in the receiving groove 109. The other end of the rotating column 107 passes through the sealing plate 110 and is rotatably connected to the sealing plate 110. The U-shaped rod 108 is buckled on the rotating column 107 and is connected to the rotating column 107 by a screw. The steel cable on the loading mechanism passes through the U-shaped rod 108, thereby lifting the fixing frame 101. When the housing 121 drives the fixing frame 101 to rotate, the fixing frame 101 will rotate relative to the rotating column 107, thereby avoiding the twisting of the steel cable and allowing the housing 121 to rotate better.

[0040] The working principle of the pile driver with self-righting function provided in the above embodiment is as follows: First, the hydraulic rod 154 is activated to push the corresponding clamping plate 153 to clamp one end of the pile. Then, the mounting frame 101 is lifted via the loading mechanism, lifting the pile off the ground. The pile is then placed in a suitable position, with the end of the pile away from the mounting plate 152 in contact with the ground. The motor 130 is activated, which drives the first rotating shaft 122 via a belt. The rotation of the first rotating shaft 122 drives the second rotating shaft 123 via a gear. The first and second rotating shafts 122, 123 drive their respective eccentric blocks to rotate. The rotation of the eccentric blocks, via the first and second rotating shafts 122, 123, drives the housing 121 to slide on the guide column 102. When the shell 121 approaches the foundation pile, the shell 121 drives the fixing column 142 to impact the mounting plate 152, and the mounting plate 152 drives the foundation pile to move underground. At the same time, due to the action of the second spring 150, the rotating wheel 144 abuts against the mounting plate 152. The reduction in the distance between the shell 121 and the mounting plate 152 causes the rotating wheel 144 to drive the slider 143 to slide in the spiral groove 148. The rotating wheel 144 will not rotate under the action of the one-way bearing. Then, when the shell 121 approaches the mounting plate 152, it drives the fixing frame 101 to rotate relative to the mounting plate 152, and the fixing frame 101 rotates relative to the rotating column 107. When the shell 121 moves away from the foundation pile, the shell 121 drives the fixing column 142 away from the mounting plate 152, and the slider 143 slides in the spiral groove 148 under the action of the third spring 105. The slider 143 drives the rotating wheel 144 to rotate relative to the mounting plate 152. At this time, the rotating wheel 144 rolls on the mounting plate 152, and the shell 121 does not rotate relative to the mounting plate 152. At the same time, the movement of the shell 121 has to overcome its own gravity. The distance the shell 121 moves away from the mounting plate 152 is less than the distance it moves close to the mounting plate 152, and the foundation pile as a whole tends to move downward.

[0041] If the pile tilts, the pendulum 141 swings under the influence of gravity as the housing 121 rotates. The center of gravity of the housing 121 and the mounting bracket 101 shifts and lies below the axis of the pile. As the housing 121 moves away from the mounting plate 152, the weight of the pendulum 141 causes the wheel 144 to slip while rolling on the mounting plate 152 and move in the opposite direction relative to the mounting plate 152. As the first and second rotating shafts 122 and 123 rotate, the housing 121 swings back and forth. The operator can observe this by pulling the first pull rope 127 corresponding to the lower connecting plate 126. The first pull rope 127, via the connecting plate 126, drives the slide 125 in the second direction. The slide 125 slides through the guide slot 129, driving the second rotating shaft 123 in the arc slot 124, rotating around the first rotating shaft 122 and compressing the corresponding first spring 128. At this time, the extension direction of the perpendicular line of the connection between the first rotating shaft 122 and the second rotating shaft 123 gradually becomes consistent with the extension direction of the axis of the foundation pile and continues to rotate. At this time, the direction of the resultant force generated by the eccentric blocks on the first rotating shaft 122 and the second rotating shaft 123 changes and generates two component forces, one of which still drives the shell 121 to move along the extension direction of the axis of the foundation pile, and the other component forces the shell 121 to move in the opposite direction of the inclination of the foundation pile, so that the shell 121 drives the foundation pile to gradually straighten.

[0042] As the connecting plate 126 slides, the connecting plate 126 drives the two second pull ropes 151 to move synchronously through the pull plate 155. The two pull ropes move away from the mounting plate 152 through the corresponding sliders 143. The sliders 143 drive the corresponding wheels 144 to separate from the mounting plate 152. At this time, the shell 121 will not rotate relative to the mounting plate 152 when moving, and the operator can better control the distance that the first pull rope 127 pulls the slide plate 125 to move.

[0043] After pulling the first pull rope 127 for a certain period of time, observe the alignment of the foundation pile, then loosen the first pull rope 127, and the compressed first spring 128 resets and drives the slide plate 125 to reset through the connecting plate 126. The vertical line of the connection between the first rotating shaft 122 and the second rotating shaft 123 coincides with the axis of the foundation pile, and the second spring 150 drives the slider 143 to reset. The rotating wheel 144 abuts against the mounting plate 152 again, and observe whether the shell 121 rotates normally. If it cannot rotate normally, continue to repeat the above actions to prompt the foundation pile to continue to be aligned.

[0044] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A pile driver with self-righting function, characterized in that: include: The first and second rotating shafts are rotatably mounted on the fixing frame, and the second rotating shaft is rotatably mounted on the fixing frame. The first and second rotating shafts are rotatably mounted on the fixing frame, and the second rotating shaft rotates around the first rotating shaft on the fixing frame. The first and second rotating shafts are parallel and extend in a first direction, and the first direction is perpendicular to the direction in which the axis of the fixing frame extends. A spacing is provided between the first and second rotating shafts, and eccentric blocks are respectively provided on the first and second rotating shafts. When the first and second rotating shafts rotate, a resultant force perpendicular to the direction in which the first and second rotating shafts connect is generated, and the casing is driven to rotate in a fixed position. The frame slides on the frame; the adjusting component is used to drive the second rotating shaft to rotate around the first rotating shaft; the clamping mechanism includes a mounting plate and a clamping claw, the mounting plate is slidably set on the shell, the mounting plate is rotatably connected to the shell, and the clamping claw is used to clamp the foundation pile; the detection mechanism includes a pendulum and a driving component, the pendulum is rotatably set on the fixed frame, the rotation axis of the pendulum extends along the first direction, the center of gravity of the pendulum is located below its rotation axis, the axis of the foundation pile coincides with the rotation axis of the mounting plate and the extension line passes through the rotation axis of the pendulum, the fixed frame, the shell, the mounting plate and the foundation pile are arranged in sequence along the axial direction of the foundation pile; the driving component is used to drive the shell to rotate when the center of gravity of the pendulum is located on the axis of the foundation pile.

2. A pile driver with self-righting function according to claim 1, characterized in that: The adjusting assembly includes a sliding frame and a power piece. An arc groove is provided on the shell, the arc groove is coaxial with the first rotating shaft, the second rotating shaft is slidably set in the arc groove, the sliding frame is slidably set in the shell along the second direction, the second direction is perpendicular to the first direction and the extension direction of the pile axis, a guide groove is provided on the sliding frame, the second rotating shaft is slidably set in the guide groove along the second direction, the guide groove is inclined in the second direction, and the guide groove gradually moves away from the mounting plate from the side close to the first rotating shaft to the side close to the second rotating shaft. The power piece is used to drive the sliding frame to slide in the shell.

3. A pile driver with self-righting function according to claim 2, characterized in that: When the foundation pile is vertical, the center of gravity of the pendulum is located on the axis of the foundation pile and can rotate in both directions around its own rotation axis. The first rotating shaft and the second rotating shaft are located on the same horizontal plane, and the second rotating shaft is spaced apart from both ends of the guide groove and the arc groove in the extension direction respectively. There are two power members, and the two power members are located on both sides of the sliding frame in the second direction.

4. A pile driver with self-righting function according to claim 2, characterized in that: The driving assembly includes a fixed column, a slider and a rotating wheel. The fixed column is arranged between the shell and the mounting plate. The mounting plate is connected to the shell through the fixed column. The mounting plate is rotatably connected to the fixed column and is slidably connected along the axial direction of the mounting plate. A spiral groove is provided on the circumferential surface of the fixed column. The slider is slidably arranged in the spiral groove. The rotating wheel is rotatably arranged on the slider and rotates unidirectionally relative to the slider. The rotating wheel is always in contact with the mounting plate; when the shell and the mounting plate are away from each other, the rotating wheel can rotate relative to the slider.

5. A pile driver with self-righting function according to claim 4, characterized in that: The driving assembly further comprises a second spring which is arranged in the spiral groove and is used for providing a thrust for the slider to approach the mounting plate.

6. A pile driver with self-righting function according to claim 5, characterized in that: The driving assembly also includes a second pull rope, the second pull rope sleeve is arranged in the second spring, one end of the second pull rope is connected to the slider, and the other end of the second pull rope passes through the fixed column and the shell and is connected to the slide frame.

7. The pile driver with self-righting function according to claim 1, characterized in that: A guide column is provided on the fixing frame, and the guide column extends along the axial direction of the foundation pile. An ear plate is provided on the shell, and the guide column passes through the ear plate and is slidably connected to the ear plate. A baffle is provided on the guide column, and the baffle is located on the side of the ear plate close to the foundation pile. A third spring and a fourth spring are sleeved on the guide column, and the two ends of the third spring are respectively connected to the baffle and the ear plate, and the two ends of the fourth spring are respectively connected to the ear plate and the fixing frame.

8. The pile driver with self-righting function according to claim 1, characterized in that: A motor is provided on the housing, and the motor is used to drive the first rotating shaft to rotate. The first rotating shaft and the second rotating shaft are respectively sleeved with gears of the same size, and the two gears are meshed.

9. The pile driver with self-righting function according to claim 1, characterized in that: The clamping jaws include a plurality of clamping plates, each of which is rotatably connected to the mounting plate, and the plurality of clamping plates are evenly distributed around the axis of the mounting plate. A plurality of hydraulic rods are provided on the mounting plate, and each hydraulic rod corresponds to a clamping plate. One end of the hydraulic rod is rotatably set on the mounting plate, and the other end is rotatably set on the clamping plate.

10. The pile driver with self-righting function according to claim 1, characterized in that: It also includes a loading mechanism, which is used to lift the fixed frame. The fixed frame is provided with a lifting lug, which is rotatably connected to the fixed frame. The axis of the foundation pile coincides with the rotation axis of the lifting lug, and the lifting lug is connected to the loading mechanism through a steel cable.

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