Combined pile extractor

Abstract

The invention discloses a combined pile extractor which comprises a rack, a power source assembly, a lead screw lifting assembly, a clamping assembly, a combined mechanism, a controller and a storage battery. The power source assembly is installed at the top of the rack, connected with the lead screw lifting assembly and used for providing lifting power for the lead screw lifting assembly, and the power source assembly comprises a motor; the lead screw lifting assembly is movably installed on the rack. The clamping assembly is installed on the lead screw lifting assembly. The combined mechanism is installed on the lead screw lifting assembly and the machine frames and used for connecting the adjacent machine frames. And the controller is mounted on the rack. Through the arrangement of the combined mechanism, the adjacent pile pulling machines can be connected, linkage control can be carried out, the multiple pile pulling machines can carry out pile pulling operation on one pile body at the same time, large or deeply-buried pile bodies can be pulled out, and the pile pulling effect and the pile pulling efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pile pullers, and in particular to a combined pile puller. Background Art

[0002] A pile puller is an important construction machinery that uses vibration, static force or hammering to pull piles out of the ground.

[0003] In gardens, small pile pullers are generally preferred. This is because the space in gardens is usually narrow, and the piles that need to be handled are mostly small or medium-sized. Small pile pullers have more advantages in gardens due to their small size, flexible operation and low cost. However, the following problems are encountered when using small pile pullers: When dealing with particularly large or deeply buried piles, due to the limitations of size and power system, small pile pullers may not be able to pull out large or deeply buried piles, affecting the pile pulling effect, and even requiring manual excavation before pulling out the piles, which seriously affects the efficiency of pile pulling.

[0004] Therefore, a small pile pulling machine is provided which can be used in combination with multiple pile pulling machines to pull out large or deeply buried piles. Summary of the invention

[0005] The purpose of the present invention is to provide a combined pile pulling machine to solve the problem in the background art that some large or deeply buried piles cannot be pulled out by a small pile pulling machine, which affects the pile pulling effect and efficiency.

[0006] In order to achieve the above-mentioned purpose, the present invention proposes a combined pile pulling machine, comprising a frame, a power source assembly, a screw lifting assembly, a clamping assembly, a combination mechanism, a controller and a battery; the power source assembly is installed on the top of the frame and is connected to the screw lifting assembly to provide lifting power for the screw lifting assembly, and the power source assembly includes a motor; the screw lifting assembly is movably installed on the frame; the clamping assembly is installed on the screw lifting assembly; the combination mechanism is installed on the screw lifting assembly and the frame to connect adjacent frames; the controller is installed on the frame; a plurality of pile pulling machines are connected end to end through the corresponding combination mechanism, and then the corresponding motors are controlled to start by their respective controllers, driving the corresponding screw lifting assembly to work, so that the clamping assembly is lifted and moved to pull out the pile body.

[0007] Optionally, the combined mechanism includes a pre-connection component installed on the frame, and a linkage component installed on the screw lifting component and penetrating the frame, wherein the linkage component is connected to the pre-connection component.

[0008] Optionally, before pulling out the pile, a plurality of pile pullers are placed around the pile body, and then adjacent pile pullers are connected via a pre-connection assembly. After the connection is completed, one of the pile pullers is started, and the pile puller drives the other pile pullers to work synchronously via a linkage assembly.

[0009] Optionally, the pre-connection assembly includes two connecting ears fixedly mounted on two parallel side walls of the frame, a rotating groove arranged on the connecting ears, a rotating connecting plate with one end movably mounted on the rotating groove by a bolt, a connecting hole arranged on the other end of the rotating connecting plate, and a locking structure installed on the other connecting ear, and the locking structure is used to cooperate with the connecting hole to lock and limit the rotating connecting plate; the rotating connecting plate is connected to the linkage assembly.

[0010] Optionally, the locking structure includes a through hole arranged at the top of the connecting ear, a hollow tube installed on the top of the connecting ear and connected to the through hole, a locking column arranged through the hollow tube, a control plate installed on the top of the locking column, a limit plate installed on the locking column and located in the hollow tube, a spring sleeved on the locking column and located on the hollow tube, and a chamfer is provided on the end of the locking column away from the control plate; a chamfer is also provided on the end of the rotating connecting plate where the connecting hole is provided; a connecting column is installed at the bottom of the rotating connecting plate, and the connecting column is movably connected to the linkage assembly.

[0011] Optionally, the linkage assembly includes a guide column fixedly mounted on the frame, a damping linkage structure mounted on the guide column and penetrating one side wall of the frame, and a linkage receiving assembly mounted on another parallel side wall of the frame, wherein the linkage receiving assembly is connected to the controller; the screw lifting assembly and the connecting column are both connected to the damping linkage structure.

[0012] Optionally, the screw lifting assembly in one of the combined pile pulling machines drives the damping linkage structure to move, and issues instructions to the linkage receiving assembly in another adjacent combined pile pulling machine, and the linkage receiving assembly sends a signal to the controller, and the controller controls the corresponding motor to work.

[0013] Optionally, the damping linkage structure includes a damping slide rod movably mounted on a guide column, a first damping slider and a second damping slider slidably mounted on the damping slide rod, a linkage control plate movably mounted on the second damping slider and passing through the frame, and two protrusions respectively mounted on the top and bottom of the linkage control plate.

[0014] Optionally, the length of the damping slide bar is less than that of the guide post; the first damping slider is located on top of the second damping slider, and one end of the first damping slider is connected to the lead screw lifting assembly; the first damping slider can drive the damping slide bar and the second damping slider to rise through the friction force between the first damping slider and the damping slide bar; the second damping slider stays at any position on the damping slide bar through the friction force with the damping slide bar.

[0015] Optionally, the linkage control board is movably connected to the connecting column, and the rotation axes of the linkage control board and the second damping slider and the rotation axes of the connecting ear and the rotation connecting plate are collinear.

[0016] Optionally, the linkage receiving assembly includes a linkage receiving block installed on the side wall of the frame, a groove provided on the linkage receiving block corresponding to the linkage control board, two placement grooves respectively provided at the top and bottom of the groove, and a control switch installed in the placement groove, and the control switch is connected to the controller.

[0017] Optionally, the contact surface of the control switch is flush with the groove wall; the thickness of the linkage control board is less than the groove width of the groove, and the sum of the thickness of the linkage control board and the thickness of the two bumps is equal to the groove height of the groove.

[0018] Optionally, when the motor in the power source assembly drives the lead screw lifting assembly to work, the lead screw lifting assembly will drive the first damping slider connected thereto to move, so that the linkage control board moves.

[0019] Optionally, the frame includes a bottom plate, a mounting block provided on the bottom plate, a support column installed on the mounting block, and a first movable connection structure and a second movable connection structure respectively installed at the bottom and top of the support column; a through groove corresponding to the second damping slider is provided on the support column, and the height of the through groove is greater than the thickness of the second damping slider; the lead screw lifting assembly is movably installed on the first movable connection structure and the second movable connection structure; both ends of the guide post are connected to the first movable connection structure and the second movable connection structure.

[0020] Optionally, the mounting block is arranged in a U shape, a through groove corresponding to the lead screw lifting assembly is provided on the support column, and a movable groove communicating with the through groove is also provided on the support column.

[0021] Optionally, the first movable connection structure includes a first mounting seat located in the through groove, a first counterbore provided in the first mounting seat, and a first bearing installed in the first counterbore and connected to the lead screw lifting assembly.

[0022] Optionally, the second movable connection structure includes a second mounting seat installed on the top of the support column, a connecting block integrally formed with the second mounting seat and located in the through groove, a second countersunk hole arranged on the second mounting seat and the connecting block, and a second bearing installed in the second countersunk hole and connected to the screw lifting assembly; the power source assembly is installed on the second mounting seat.

[0023] Optionally, the lead screw lifting assembly includes a lead screw whose two ends are movably connected to the first bearing and the second bearing respectively, a lead screw nut installed on the lead screw, and a lifting mounting block arranged on the lead screw nut, wherein the lifting mounting block is located in the movable groove.

[0024] Optionally, both the first mounting seat and the second mounting seat are provided with mounting grooves, in which elastic retaining rings are installed; and the lifting mounting block is connected to the first damping sliding block.

[0025] Optionally, the lifting and mounting block is provided with a fixing hole and a waist-shaped hole, and the clamping assembly is fixedly mounted on the lifting and mounting block through the fixing hole and the waist-shaped hole, or the clamping assembly is movably mounted on the lifting and mounting block through the waist-shaped hole.

[0026] Optionally, the power source assembly further comprises a mounting plate mounted on the second mounting seat, the motor is mounted on the mounting plate, and the motor is connected to the lead screw lifting assembly via a coupling; a handle is mounted on the outer wall of the support column.

[0027] Optionally, the clamping assembly fixedly installed by means of fixing holes and waist-shaped holes comprises a clamping connecting plate, two clamping mounting plates arranged on one side of the clamping connecting plate, a clamping mounting groove 1 being formed between the two clamping mounting plates, and a clamping piece installed on the other side of the clamping connecting plate, which can be inserted into the pile body, and then the clamping piece rises to pull the pile body out of the ground, and the clamping mounting groove 1 is adapted to the lifting mounting block.

[0028] Optionally, the clamping member consists of a pile extraction column.

[0029] Optionally, the clamping member comprises a pile pulling block mounted on the clamping connecting plate, and a spacing groove is arranged at a middle position of the pile pulling block.

[0030] Optionally, the pile pulling block is provided with a socket connected to the spacing groove, a support screw movably installed in the socket, and a locking nut installed on the support screw.

[0031] Optionally, a hook is installed on the support screw.

[0032] Optionally, the clamping assembly movably installed through the waist-shaped hole includes a clamping block, a second clamping installation groove arranged on the clamping block, and a clamping groove arranged on the clamping block for clamping the pile body, wherein the slotting direction of the clamping groove is perpendicular to the slotting direction of the second clamping installation groove.

[0033] Optionally, an anti-slip strip is installed in the clamping groove.

[0034] Compared with the prior art, the present invention provides a combined pile pulling machine, which has the following beneficial effects: The combined pile pulling machine can connect adjacent pile pulling machines and perform linkage control through the arrangement of the combined mechanism, so that a plurality of pile pulling machines can simultaneously perform pile pulling operations on a pile body, and can pull out large or deeply buried pile bodies, thereby improving the pile pulling effect. Compared with the use of a large pile pulling machine or manual excavation, the present application has a higher pile pulling efficiency for large or deeply buried pile bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the combined pile pulling machine of the present invention.

[0036] Figure 2 It is an overall schematic diagram of the present invention from another viewing angle.

[0037] Figure 3 It is a schematic diagram of the bottom plate and the first movable connection structure of the present invention.

[0038] Figure 4 It is a connection schematic diagram of the first movable connection structure, the second movable connection structure and the lead screw of the present invention.

[0039] Figure 5 Schematic diagram of the second movable connection structure of the present invention.

[0040] Figure 6 It is a schematic diagram of the lead screw lifting assembly of the present invention.

[0041] Figure 7 It is a structural schematic diagram of the support column of the present invention.

[0042] Figure 8 It is a structural schematic diagram of the combined mechanism of the present invention.

[0043] Fig. 9 The present invention Figure 8 A partial enlarged view of point A in the middle.

[0044] Fig.10 The present invention Figure 8 A partial enlarged view of point B in the middle.

[0045] Fig.11 The present invention Figure 8 A partial enlarged view of point C in the middle.

[0046] Fig.12 The present invention Figure 8 A partial enlarged view of point D in the middle.

[0047] Fig.13 It is a cross-sectional view of the linkage control panel of the present invention.

[0048] Fig.14 It is a cross-sectional view of the linkage receiving block of the present invention.

[0049] Fig.15 It is a cross-sectional view of the locking structure on the connecting ear of the present invention.

[0050] Fig.16 Schematic diagram of the lifting nut and clamping assembly of the present invention.

[0051] Fig.17 It is a schematic diagram of the lifting nut and the clamping assembly in Example 2 of the present invention.

[0052] Fig.18 It is a schematic diagram of the lifting nut and the clamping assembly in Example 3 of the present invention.

[0053] Fig.19 It is a schematic diagram of the clamping member in Example 3 of the present invention.

[0054] Fig. 20 It is a schematic diagram of the lifting nut and the clamping assembly in Example 4 of the present invention.

[0055] Fig.21 It is a schematic diagram of the lifting nut and the clamping assembly in Example 5 of the present invention.

[0056] Fig. 22 It is a schematic diagram of the lifting nut and the clamping assembly in Example 6 of the present invention.

[0057] Fig.23 It is a schematic cross-sectional view of the rotating connecting plate in Example 7 of the present invention.

[0058] Fig.24 It is a cross-sectional schematic diagram of the rotating connecting plate in Example 7 of the present invention from another perspective.

[0059] Fig.25 It is a cross-sectional schematic diagram of the linkage control board in Example 7 of the present invention.

[0060] Fig.26 It is a cross-sectional schematic diagram of the linkage control board in Example 7 of the present invention from another perspective.

[0061] Markings in the figure: 1. frame; 11. bottom plate; 12. mounting block; 13. support column; 130. through slot; 131. through slot; 132. movable slot; 133. handle; 14. first movable connection structure; 141. first mounting seat; 142. first countersunk hole; 143. first bearing; 15. second movable connection structure; 151. second mounting seat; 152. connecting block; 153. second countersunk hole; 154. second bearing; 155. mounting slot; 156. elastic retaining ring; 2. power source assembly; 21 , motor; 22, mounting plate; 3, lead screw lifting assembly; 31, lead screw; 32, lead screw nut; 33, lifting mounting block; 34, fixing hole; 35, waist hole; 4, clamping assembly; 401, clamping block; 402, clamping mounting groove 2; 403, clamping groove; 404, anti-slip strip; 41, clamping connecting plate; 42, clamping mounting plate; 43, clamping mounting groove 1; 44, clamping piece; 441, pile pulling block; 442, spacing groove; 443, jack; 444, support screw; 445, locking nut; 4 46. ​​Hook; 5. Combined mechanism; 51. Pre-connection assembly; 510. Connecting ear; 511. Rotating slot; 512. Rotating connecting plate; 5121. Connecting column; 5122. Rotating main board; 5123. Telescopic slot 1; 5124. Connecting sub-plate; 5125. Limiting block 1; 5126. Slide 1; 513. Connecting hole; 514. Through hole; 515. Hollow tube; 516. Locking column; 517. Control board; 518. Limiting plate; 519. Spring; 52. Linkage assembly; 520. Guide column; 5 21. Damping linkage structure; 5210. Damping slide bar; 5211. First damping slider; 5212. Second damping slider; 5213. Linkage control board; 5213a. Linkage main board; 5213b. Telescopic slot 2; 5213c. Limit block 2; 5213d. Control sub-board; 5213e. Slide slot 2; 5214. Protrusion; 522. Linkage receiving assembly; 5221. Linkage receiving block; 5222. Groove; 5223. Placement slot; 5224. Control switch; 6. Controller; 7. Battery. DETAILED DESCRIPTION

[0062] The following is a detailed description in conjunction with the accompanying drawings and specific implementations. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0063] The combined pile puller of the present application can be used in situations such as pulling out piles in gardens, and of course can also be used in other similar application scenarios. The combined pile puller is described in detail below.

[0064] Example 1 See attached Figure 1 — Fig.16 As shown, a schematic diagram of the structure of a preferred embodiment of a combined pile pulling machine of the present application is shown. The combined pile pulling machine comprises a frame 1, a power source assembly 2 mounted on the top of the frame 1, a screw lifting assembly 3 movably mounted on the frame 1, a clamping assembly 4 mounted on the screw lifting assembly 3, a combination mechanism 5 mounted on the screw lifting assembly 3 and the frame 1, a controller 6 mounted on the frame 1, and a battery 7 mounted on the frame 1 for providing electric energy to the controller 6; wherein, the power source assembly 2 is connected to the screw lifting assembly 3, and the combination mechanism 5 is used to connect adjacent frames 1; multiple pile pulling machines are connected end to end through the corresponding combination mechanism 5, and then the corresponding motors 21 are controlled by their respective controllers 6 to start, driving the corresponding screw lifting assembly 3 to work, so that the clamping assemblies 4 of the multiple pile pulling machines are lifted and moved to pull out the pile bodies.

[0065] The present invention provides installation conditions by setting a frame 1; provides power by setting a power source component 2 to enable a screw lifting component 3 to work; is used to clamp a pile body by setting a clamping component 4, and drives the clamping component 4 to move by the screw lifting component 3 to pull out the pile body; is used to clamp a pile body by setting a clamping component 4; is used to connect and link adjacent pile pullers by setting a combination mechanism 5, so that a worker only needs to operate one pile puller to synchronously operate all connected pile pullers, so that multiple pile pullers can simultaneously pull out a pile body, thereby improving the pile pulling effect and efficiency; is used to control the work of the pile puller by setting a controller 6, and reduce the time difference of linkage start and stop of multiple pile pullers.

[0066] See attached Figure 1 — Fig.16 As shown, in the present invention, the combined mechanism 5 includes a pre-connection component 51 installed on the frame 1, and a linkage component 52 installed on the screw lifting component 3 and penetrating the frame 1, and the linkage component 52 is connected to the pre-connection component 51.

[0067] The present invention can pre-connect adjacent pile pullers by setting the pre-connection component 51, drive the linkage component 52 to move, and move the linkage component 52 to a specified position to prepare for subsequent linkage control, and ensure that adjacent pile pullers are relatively limited; through the setting of the linkage component 52, multiple pile pullers can be started and stopped in linkage when pulling out the same pile body, ensuring that multiple pile pullers operate synchronously, so as to ensure that the force is evenly distributed on the pile body, and pull out large piles or deeply buried piles. It should be particularly noted that before multiple pile pullers are linked to pull out piles, multiple pile pullers need to be placed in corresponding positions and placed around the pile body.

[0068] See attached Figure 8 — Fig.16 As shown, in the present invention, the pre-connection component 51 includes two connecting ears 510 respectively fixedly mounted on two parallel side walls of the frame 1, a rotating groove 511 arranged on the connecting ear 510, a rotating connecting plate 512 with one end movably mounted on the rotating groove 511 by bolts, a connecting hole 513 arranged on the other end of the rotating connecting plate 512, and a locking structure installed on the other connecting ear 510, which is used to cooperate with the connecting hole 513 to lock and limit the rotating connecting plate 512; the rotating connecting plate 512 is connected to the linkage component 52.

[0069] The present invention allows the rotary connecting plate 512 to rotate by providing the connecting ear 510 in combination with the rotating groove 511; and the other end of the rotary connecting plate 512 can be locked and limited by providing the locking structure and the connecting hole 513, thereby ensuring that adjacent pile pullers can be connected.

[0070] See attached Figure 8 , Fig.11 and Fig.15 As shown, in the present invention, the locking structure includes a through hole 514 arranged at the top of the connecting ear 510, a hollow tube 515 installed on the top of the connecting ear 510 and connected to the through hole 514, a locking column 516 arranged through the hollow tube 515, a control plate 517 installed on the top of the locking column 516, a limit plate 518 installed on the locking column 516 and located in the hollow tube 515, a spring 519 sleeved on the locking column 516 and located on the hollow tube 515, and a chamfer is provided on the end of the locking column 516 away from the control plate 517; a chamfer is also provided on the end of the rotating connecting plate 512 where the connecting hole 513 is provided; a connecting column 5121 is installed at the bottom of the rotating connecting plate 512, and the connecting column 5121 is movably connected to the linkage assembly 52.

[0071] The present invention provides a through hole 514 so that the locking column 516 can enter the corresponding rotating groove 511, cooperate with the connecting hole 513 on the rotating connecting plate 512 located in the rotating groove 511, and lock the rotating connecting plate 512; the hollow tube 515 is provided with an installation position for the locking column 516, the spring 519 and the limit plate 518; the control plate 517 is provided to drive the locking column 516 to rise, control the locking column 516 to separate from the connecting hole 513, so that the rotating connecting plate 512 is separated from the connecting ear 510 on the other pile pulling machine, so that the two pile pulling machines can be separated for subsequent operations; the limit plate 518 is provided to enable the spring 519 and the locking column 516 to interact with each other, that is, the staff can control the plate 517 to drive the locking column 516 to move upward, and control the locking column 516 to move upward, so that the locking column 516 can move upward, control the locking column 516 to move upward, and control the locking column 516 to move upward, so that the rotating connecting plate 512 can ... When the movable locking column 516 moves away from the connecting ear 510, the limit plate 518 can compress the spring 519 and ensure that the spring 519 can control the locking column 516 to reset and insert it into the rotating groove 511; by providing chamfers on the locking column 516 and the rotating connecting plate 512, when the rotating connecting plate 512 cooperates with the locking column 516, there is no need to control the locking column 516. When the rotating connecting plate 512 contacts the locking column 516, the locking column 516 will move along the chamfered surface, so that the rotating connecting plate 512 is smoothly inserted into the rotating groove 511, which is convenient for the staff to connect adjacent pile pullers; by providing the connecting column 5121, when the rotating connecting plate 512 rotates, it can drive the linkage assembly 52 to move, so that the linkage assembly 52 rotates to a specified position.

[0072] See attached Figure 8 — Fig.12 As shown, in the present invention, the linkage component 52 includes a guide column 520 fixedly mounted on the frame 1, a damping linkage structure 521 mounted on the guide column 520 and penetrating a side wall of the frame 1, and a linkage receiving component 522 mounted on another parallel side wall of the frame 1, the linkage receiving component 522 is connected to the controller 6, and the guide column is arranged in a square shape.

[0073] The present invention provides an installation position for the damping linkage structure 521 by setting the guide column 520; receives the lifting and lowering movement information of the damping linkage structure 521 by setting the linkage receiving component 522, and transmits it to the controller 6, providing an identification signal for the control signal of the controller 6.

[0074] It should be noted that the connecting column 5121 and the lead screw lifting assembly 3 are both connected to the damping linkage structure 521, so when the lead screw lifting assembly 3 moves, it can drive the damping linkage structure 521 to move up and down, and the connecting column 5121 can drive the damping linkage structure 521 to rotate and move, and when the damping linkage structure 521 moves up and down, the damping linkage structure 521 and the connecting column 5121 are movably connected and will not interfere. Specifically, the connection is made through the pre-connection assembly 51, and when the connection is made through the pre-connection assembly 51, the pre-connection assembly 51 drives the damping linkage structure 521 to rotate through the connecting column 5121. After the pre-connection assembly 51 is connected, the lead screw lifting assembly 3 can drive the damping linkage structure 521 to move, and during the movement, the damping linkage structure 521 will be squeezed with the linkage receiving assembly 522 of the next adjacent machine, so the next pile pulling machine will receive the signal and transmit the signal to the controller 6 of the pile pulling machine, and the controller 6 of the pile pulling machine starts the control line corresponding to the motor 21 to start the operation.

[0075] See attached Figure 8 — Fig.15 As shown, in the present invention, the damping linkage structure 521 includes a damping slide bar 5210 movably mounted on the guide column 520, a first damping slider 5211 and a second damping slider 5212 slidably mounted on the damping slide bar 5210, a linkage control plate 5213 movably mounted on the second damping slider 5212 and penetrating the frame 1, and two protrusions 5214 respectively mounted on the top and bottom of the linkage control plate 5213.

[0076] The present invention provides installation positions for the first damping slider 5211 and the second damping slider 5212 through the setting of the damping slide rod 5210, and guides the movement of the first damping slider 5211 and the second damping slider 5212; and transmits the lifting information of the screw lifting assembly 3 to the next adjacent pile puller through the setting of the linkage control plate 5213 and the protrusion 5214.

[0077] Among them, the length of the damping slide rod 5210 is smaller than the length of the guide column 520, and the absolute value of the difference in length between the damping slide rod 5210 and the guide column 520 is less than 0.5 cm, thereby ensuring that the damping slide rod 5210 can be lifted and moved along the guide column 520, so that it can drive the second damping slider 5212 to be lifted and moved, and drive the linkage control plate 5213 and the protrusion 5214 to be lifted and moved, and the cross-section of the damping slide rod 5210 is annular to reduce the friction between the damping slide rod 5210 and the guide column 520, and increase the friction with the first damping slider 5211 and the second damping slider 5212. It should be noted that the absolute value of the length difference of 0.5 cm can be adjusted accordingly. The length difference is related to the screw lifting assembly 3, that is, the rotation speed of the screw 31 in the screw lifting assembly 3 and the distance moved by the screw nut 32 per revolution. In simple terms, the product of the rotation speed of the screw 31 and the distance moved by the screw nut 32 per revolution is the distance moved by the screw nut per minute, and the absolute value difference can be adjusted according to the distance moved by the screw nut 32 per minute to ensure signal transmission within the allowable error time. Of course, the shorter the error time, the better the linkage of the multi-pile puller.

[0078] See attached Figure 8 — Fig.15 As shown, in the present invention, the first damping slider 5211 is located at the top of the second damping slider 5212, and one end of the first damping slider 5211 is connected to the screw lifting assembly 3; the first damping slider 5211 can drive the damping slide bar 5210 and the second damping slider 5212 to rise through the friction force between the first damping slider 5211 and the damping slide bar 5210; the second damping slider 5212 stays at any position on the damping slide bar 5210 through the friction force between the first damping slider 5211 and the damping slide bar 5210; the linkage control plate 5213 is movably connected to the connecting column 5121.

[0079] The present invention limits the positions of the first damping slider 5211 and the second damping slider 5212 to ensure that the lifting and lowering movement of the first damping slider 5211 will not be limited by the second damping slider 5212, and ensure that the screw lifting assembly 3 will not interfere during operation.

[0080] See attached Figure 8 — Fig.15 As shown, in the present invention, the linkage receiving component 522 includes a linkage receiving block 5221 installed on the side wall of the frame 1, a groove 5222 arranged on the linkage receiving block 5221 corresponding to the linkage control board 5213, two placement grooves 5223 respectively arranged at the top and bottom of the groove 5222, and a control switch 5224 installed in the placement groove 5223, and the control switch 5224 is connected to the controller 6.

[0081] The present invention avoids and cooperates with the linkage control plate 5213 by setting the linkage receiving block 5221 and the groove 5222, so that the protrusion 5214 can correspond to the control switch 5224; through the setting of the control switch 5224, the lifting and lowering movement of the screw lifting assembly 3 in the previous pile pulling machine is received by the signal, and the signal is transmitted to the controller 6.

[0082] See attached Figure 8 — Fig.15 As shown, in the present invention, the contact surface of the control switch 5224 is flush with the groove wall of the groove 5222; the thickness of the linkage control plate 5213 is less than the groove width of the groove 5222, and the sum of the thickness of the linkage control plate 5213 and the thickness of the two protrusions 5214 is equal to the groove height of the groove 5222; when the motor 21 in the power source assembly 2 drives the screw lifting assembly 3 to work, the screw lifting assembly 3 will drive the first damping slider 5211 connected thereto to move, so that the linkage control plate 5213 moves.

[0083] The present invention limits the contact surface of the control switch 5224 to be flush with the groove wall of the groove 5222, thereby ensuring that the protrusion 5214 can press the control switch 5224 when it moves, so that the controller 6 receives the signal, reduces the time required for reaction, and improves the linkage of the pile puller; by limiting the groove width of the groove 5222, it is ensured that the protrusion 5214 can enter the groove 5222, and the groove width direction of the groove 5222 is the height direction of the two protrusions 5214.

[0084] See attached Figure 1 — Figure 5 As shown, in the present invention, the frame 1 includes a base plate 11, a mounting block 12 arranged on the base plate 11, a support column 13 installed on the mounting block 12, and a first movable connection structure 14 and a second movable connection structure 15 respectively installed on the bottom and top of the support column 13; wherein, the support column 13 is provided with a through groove 130 corresponding to the second damping slider 5212, and the height of the through groove 130 is greater than the thickness of the second damping slider 5212; the screw lifting assembly 3 is movably installed on the first movable connection structure 14 and the second movable connection structure 15; and the two ends of the guide column 520 are connected to the first movable connection structure 14 and the second movable connection structure 15.

[0085] The present invention provides an installation position for the support column 13 by setting the installation block 12; provides an installation position for the guide column 520 and the screw lifting assembly 3 by setting the first movable connection structure 14 and the second movable connection structure 15; and limits the moving range of the second damping slider 5212 by setting the through groove 130 to prevent the second damping slider 5212 from moving too far and causing the control switch 5224 to be squeezed and damaged.

[0086] See attached Figure 1 — Figure 7 As shown, in the present invention, the mounting block 12 is arranged in a U shape. A through groove 131 corresponding to the lead screw lifting assembly 3 is provided on the support column 13, and a movable groove 132 communicating with the through groove 131 is also provided on the support column 13.

[0087] Through the setting of the through groove 131 in the present invention, the first movable connection structure 14 and the second movable connection structure 15 can be respectively installed at both ends of the support column 13 and can be connected by the lead screw lifting assembly 3; through the setting of the movable groove 132, it provides avoidance and limitation for the lifting mounting block 33 to ensure that the lifting mounting block 33 can only move up and down along the movable groove 132.

[0088] Refer to the appendix Figure 1 — Figure 3 As shown, in the present invention, the first movable connection structure 14 includes a first mounting seat 141 located in the through groove 131, a first counterbore 142 provided in the first mounting seat 141, and a first bearing 143 installed in the first counterbore 142 and connected to the lead screw lifting assembly 3.

[0089] Through the setting of the first counterbore 142 in the present invention, it provides an installation position for the first bearing 143. Through the setting of the first bearing 143, one end of the lead screw 31 in the lead screw lifting assembly 3 is movably supported.

[0090] Refer to the appendix Figure 4 and Figure 5 As shown, in the present invention, the second movable connection structure 15 includes a second mounting seat 151 installed on the top of the support column 13, a connecting block 152 integrally formed with the second mounting seat 151 and located in the through groove 131, a second counterbore 153 provided on the second mounting seat 151 and the connecting block 152, and a second bearing 154 installed in the second counterbore 153 and connected to the lead screw lifting assembly 3; the power source assembly 2 is installed on the second mounting seat 151.

[0091] Through the setting of the second mounting seat 151 in the present invention, it provides an installation position for the power source assembly 2; through the setting of the connecting block 152, it is used to connect with the support column 13; through the setting of the second counterbore 153, it provides an installation position for the second bearing 154; through the setting of the second bearing 154, the other end of the lead screw 31 in the lead screw lifting assembly 3 is movably limited.

[0092] It should be particularly noted that mounting grooves 155 are provided on both the first mounting seat 141 and the second mounting seat 151, and an elastic retaining ring 156 is installed in the mounting groove 155. In the present application, the elastic retaining ring 156 can effectively prevent the bearing from separating from the counterbore and effectively limit the bearing. A handle 133 is installed on the outer wall of the support column 13.

[0093] Participate in the Figure 1 — Figure 6 As shown, in the present invention, the screw lifting assembly 3 includes a screw 31 whose two ends are movably connected to the first bearing 143 and the second bearing 154 respectively, a screw nut 32 installed on the screw 31, and a lifting mounting block 33 arranged on the screw nut 32, and the lifting mounting block 33 is located in the movable groove 132, wherein the lifting mounting block 33 is connected to the first damping slider 5211.

[0094] The present invention arranges the lead screw 31 and the lead screw nut 32 so that the lead screw 31 can rotate to drive the lead screw nut 32 to move up and down, thereby driving the lifting and lowering mounting block 33 to move; the lifting and lowering mounting block 33 is arranged to provide an installation position for the clamping assembly 4, so that the clamping assembly 4 can move up and down along with the lead screw nut 32.

[0095] See attached Figure 1 , Figure 6 and Fig.16 As shown, in the present invention, the clamping assembly 4 is mounted on a lifting mounting block 33 , and the lifting mounting block 33 is provided with a fixing hole 34 and a waist-shaped hole 35 , and the clamping assembly 4 is fixedly mounted on the lifting mounting block 33 through the fixing hole 34 and the waist-shaped hole 35 .

[0096] The present invention provides installation adjustment for the clamping assembly 4 by providing the fixing hole 34 and the waist-shaped hole 35 .

[0097] See attached Fig.16 As shown, in the present invention, the clamping assembly 4 includes a clamping mounting plate 42 fixedly mounted on the lifting mounting block 33, a clamping connecting plate 41 for connecting the two clamping mounting plates 42, a clamping mounting groove 43 formed between the two clamping mounting plates 42, and a clamping member 44 mounted on the side of the clamping connecting plate 41. It should be particularly noted that the clamping mounting plate 42 is fixedly mounted by two bolts, and the two bolts penetrate the fixing hole 34 and the waist-shaped hole 35 respectively.

[0098] The present invention is used to cooperate with or clamp the pile body through the setting of the clamping member 44, that is, when the lifting installation block 33 drives the clamping member 44 to rise, the force on the clamping member 44 can act on the pile body, so that the pile body is subjected to an upward force and the pile body is pulled out of the ground.

[0099] See attached Fig.16 As shown, in the present invention, the clamping member 44 is composed of a pile pulling column arranged in a columnar shape, and the pile pulling column can be one or more. It should be particularly noted that when the clamping member 44 is composed of a pile pulling column, the pile body needs to be provided with a hole for inserting the pile pulling column.

[0100] See attached Figure 1 — Fig.16As shown, when there are large or deeply buried piles that need to be pulled out, multiple pile pullers are required to pull out the piles together. The specific operations are as follows: First, multiple pile pullers are connected to adjacent pile pullers through the pre-connection assembly 51 until all the pile pullers are connected end to end. When the pre-connection assembly 51 is connected, it will drive the linkage assembly 52 to move through the connection column 5121, and then the pile puller is moved to a specified position, and the clamping piece 44 on the pile puller is inserted into the hole of the pile body. Then the staff starts one of the pile pullers, and the adjacent pile pullers are started at the same time through the linkage assembly 52 to pull out the pile body.

[0101] The specific operation of the pre-connection component 51 to connect adjacent pile pullers is as follows: The rotating connecting plate 512 on the first pile pulling machine is rotated around the connection of the connecting ear 510, so that the rotating connecting plate 512 rotates toward the connecting ear 510 provided with a locking structure on the adjacent second pile pulling machine, and one end of the rotating connecting plate 512 provided with a connecting hole 513 will contact the locking column 516 in the locking structure on the second pile pulling machine. As the rotating connecting plate 512 rotates, one end of the rotating connecting plate 512 will continuously enter the rotating groove 511 of the second pile pulling machine. When it rotates to a specified position, the locking column 516 will be inserted into the connecting hole 513; and when the rotating connecting plate 512 rotates, the rotating connecting plate 512 drives the damping linkage structure 521 to rotate through the connecting column 5121, and the linkage control plate 5213 of the damping linkage structure 521 rotates into the groove 5222 of the linkage receiving component 522 of the second pile pulling machine, and the protrusion 5214 corresponds to the control switch 5224. Repeat the above steps to connect all pile drivers.

[0102] When the pile body needs to be pulled out, the staff can start the motor 21 connected to the controller 6 on the first pile pulling machine, that is, the motor 21 of the first pile pulling machine is started. When the motor 21 is started, it will drive the lead screw 31 connected to it to rotate, and the lead screw 31 rotates to drive the lead screw nut 32 installed on the lead screw 31 to rise. When the lead screw nut 32 rises, it will drive the lifting installation block 33 connected to it to rise, and the lifting installation block 33 will drive the clamping assembly 4 to rise. At the same time, the lifting installation block 33 will drive the first damping slider 5211 to rise, and the first damping slider 5211 and the damping slide rod 5 The friction force between the damping slide bar 5210 and the second damping slide bar 5212 causes the damping slide bar 5210 to start to rise. The damping slide bar 5210 drives the second damping slide bar 5212 to rise through the friction force with the second damping slide bar 5212. The second damping slide bar 5212 drives the linkage control board 5213 to rise. The protrusion 5214 on the linkage control board 5213 squeezes one of the control switches 5224 in the second pile driver. At this time, the control switch 5224 sends a signal to the controller 6 of the second pile driver. The controller 6 of the second pile driver controls the motor 21 of the second pile driver to start working, and this is repeated until all pile drivers start to work. It should be noted that there are two ways to start the motor 21. The first is to start it with the controller 6. When it is started directly through the controller 6, it can only be started for a certain time. When the control switch 5224 is in a pressed state, the controller 6 will control the pile driver to move the full stroke. Of course, it can be stopped by the controller 6 or stop after the stroke ends. The present application controls the stroke by installing an infrared distance sensor on the lead screw nut 32 or a limit switch on the support column 13. When it moves to the stroke terminal or stops through the controller 6, the controller 6 will first control the motor 21 to stop working, and then control the motor 21 to reverse, so that the bump 5214 in the pile driver is aligned with the second pile driver. The control switch 5224 of the first pile driver is separated, so that the controller 6 of the second pile driver receives the stop signal and controls the motor 21 of the second pile driver to stop and reverse, and so on, until all the pile drivers are stopped; if the pile body has not been pulled out at this time, the connection between two adjacent pile drivers can be removed, the clamping member 44 on the pile driver is separated from the pile body, and then the controller 6 on the first pile driver controls the motor 21 to reverse and reset, and at the same time drives the next pile driver to reset through the linkage assembly 52. ​​After the pile driver is reset to form the starting end, the controller 6 controls the motor 21 to stop and rotate forward, so that the protrusion 5214 is separated from another control switch 5224, and then it can be reconnected to pull out the pile again.

[0103] Example 2 See attached Fig.17As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the clamping member 44 includes a pile pulling block 441 installed on the clamping connecting plate 41 , and a spacing groove 442 is arranged at the middle position of the pile pulling block 441 .

[0104] This embodiment adjusts the original columnar structure into a block structure of the pile pulling block 441, and cooperates with the spacing groove 442, so that it can be used for a pile body with multiple holes at the same horizontal height, and the groove width of the spacing groove 442 corresponds to the spacing between the holes; of course, this embodiment can also be used to pull out a pile body with an enlarged head, that is, the spacing groove 442 cooperates with the main part of the pile body, and then the clamping member 44 rises to support the enlarged head, thereby driving the entire pile body to rise and pull out the pile body.

[0105] Example 3 See attached Fig.18 and Fig.19 As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the pile pulling block 441 is provided with a plug hole 443 connected to the spacing groove 442, a support screw 444 movably installed in the plug hole 443, and a locking nut 445 installed on the support screw 444.

[0106] In this embodiment, the socket 443 is provided to provide a mounting position for the support screw 444 ; and the locking nut 445 is provided to prevent the support screw 444 from being separated from the socket 443 .

[0107] When using this embodiment, the support screw 444 is passed through the entire pile body and then pulled out. In this embodiment, the width of the spacing groove 442 is not less than the width and length of the pile body, and when resetting, there is no need to separate adjacent pile drivers, only the support screw 444 needs to be disassembled.

[0108] Example 4 See attached Fig. 20 As shown, the difference between this embodiment and the above-mentioned embodiment is that, in this embodiment, a hook 446 is installed on the support screw 444 .

[0109] In this embodiment, by setting the hook 446, it is only necessary to hang the hook 446 in the hole of the pile body and then pull out the pile. When resetting, there is no need to separate the adjacent pile drivers, and it is only necessary to unhook the hook.

[0110] Example 5 See attached Fig.21As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the clamping assembly 4 is movably mounted on the lifting mounting block 33 through the waist-shaped hole 35, and the clamping assembly 4 includes a clamping block 401, a clamping mounting groove 402 arranged on the clamping block 401, and a clamping groove 403 arranged on the clamping block 401 for clamping the pile body, and the slotting direction of the clamping groove 403 is perpendicular to the slotting direction of the clamping mounting groove 402.

[0111] In this embodiment, the second clamping installation groove 402 is provided, and the pile body is pulled out by the friction between the second clamping installation groove 402 and the pile body. In this embodiment, no holes are required to be provided on the pile body, thus further expanding the use range of the pile driver.

[0112] Example 6 See attached Fig. 22 As shown, the difference between this embodiment and the above-mentioned embodiment is that, in this embodiment, an anti-slip strip 404 is installed in the clamping groove 403 .

[0113] In this embodiment, the anti-slip strip 404 is used to increase the friction between the second clamping installation groove 402 and the pile body, thereby improving the pile pulling effect. When the friction decreases, the anti-slip strip 404 can be replaced separately to ensure the pile pulling effect. Compared with the replacement of the clamping block 401 due to wear, the cost of the anti-slip strip 404 is lower.

[0114] Example 7 See attached Fig.23 — Fig.26As shown, the difference between this embodiment and the above-mentioned embodiment is that, in this embodiment, the rotating connecting plate 512 and the linkage control plate 5213 are retractable structures, and the structures are similar; specifically, the rotating connecting plate 512 includes a rotating main plate 5122 movably installed on the rotating groove 511 by bolts, a telescopic groove 1 5123 arranged on the rotating main plate 5122, a connecting sub-plate 5124 installed in the telescopic groove 1 5123, a limiting block 1 5125 installed at the notch of the telescopic groove 1 5123, the connecting sub-plate 5124 is T-shaped, the bottom of the rotating main plate 5122 is provided with a slide groove 1 5126 connected to the telescopic groove 1 5123, and the connecting column 5121 is installed at the bottom of the connecting sub-plate 5124. And it is located in the slide groove 1 5126, and the connecting hole 513 is arranged on the connecting sub-plate 5124; the linkage control plate 5213 includes a linkage main plate 5213a movably installed on the first damping slider 5212 by bolts, a telescopic groove 2 5213b arranged on the linkage main plate 5213a, a limit block 2 5213c arranged at the notch of the telescopic groove 2 5213b, a control sub-plate 5213d slidably installed in the telescopic groove 2 5213b and arranged in a T shape, a slide groove 2 5213e arranged on the top of the linkage main plate 5213a, one end of the connecting column 5121 is located in the slide groove 2 5213e and is connected to the control sub-plate 5213d, and a protrusion 5214 is arranged on the control sub-plate 5213d.

[0115] In this embodiment, by setting the rotating connecting plate 512 and the linkage control plate 5213 as a telescopic structure, it is convenient for workers to connect adjacent pile pulling machines. There is no need to specially adjust the distance between adjacent pile drivers to adapt to the length of the rotating connecting plate 512 and the linkage control plate 5213. The distance between adjacent pile drivers only needs to be within the adjustable length of the rotating connecting plate 512 to be connected, and the orientation of the pile driver and the pile body can be set more flexibly, thereby further improving the pile pulling efficiency.

[0116] The above embodiments are intended to illustrate the present application, not to limit the present application. Any solution that is a simple transformation of the present application falls within the protection scope of the present application.

Claims

1. A combined pile pulling machine, characterized in that: It comprises a frame (1), a power source assembly (2), a screw lifting assembly (3), a clamping assembly (4), a combination mechanism (5), a controller (6) and a battery (7); The power source assembly (2) is mounted on the top of the frame (1) and is connected to the lead screw lifting assembly (3) to provide lifting power for the lead screw lifting assembly (3). The power source assembly (2) comprises a motor (21); The lead screw lifting assembly (3) is movably mounted on the frame (1); The clamping assembly (4) is mounted on the lead screw lifting assembly (3); The combined mechanism (5) is installed on the screw lifting assembly (3) and the frame (1) and is used to connect adjacent frames (1); The controller (6) is mounted on the frame (1); The plurality of pile pullers are connected end to end via corresponding combination mechanisms (5), and then the corresponding motors (21) are controlled by respective controllers (6) to start, thereby driving the corresponding screw lifting components (3) to work, causing the clamping components (4) to move up and down, and thereby pulling out the pile body.

2. The combined pile pulling machine according to claim 1, characterized in that: The combined mechanism (5) comprises a pre-connection component (51) mounted on the frame (1), and a linkage component (52) mounted on the lead screw lifting component (3) and arranged to penetrate the frame (1), wherein the linkage component (52) is connected to the pre-connection component (51); Before pulling out a pile, a plurality of pile pullers are placed around the pile body, and then adjacent pile pullers are connected via a pre-connection assembly (51). After the connection is completed, one of the pile pullers is started, and the pile puller drives the other pile pullers to work synchronously via a linkage assembly (52).

3. The combined pile pulling machine according to claim 2, characterized in that: The pre-connection assembly (51) comprises two connection ears (510) respectively fixedly mounted on two parallel side walls of the frame (1), a rotation groove (511) provided on the connection ears (510), a rotation connection plate (512) with one end movably mounted on the rotation groove (511) by means of a bolt, a connection hole (513) provided on the other end of the rotation connection plate (512), and a locking structure installed on the other connection ear (510), the locking structure being used to cooperate with the connection hole (513) to lock and limit the rotation connection plate (512); the rotation connection plate (512) is connected to the linkage assembly (52).

4. The combined pile pulling machine according to claim 3, characterized in that: The locking structure comprises a through hole (514) arranged at the top of the connecting ear (510), a hollow tube (515) installed at the top of the connecting ear (510) and connected to the through hole (514), a locking column (516) arranged to pass through the hollow tube (515), a control plate (517) installed at the top of the locking column (516), a limit plate (518) installed on the locking column (516) and located in the hollow tube (515), and a spring (519) sleeved on the locking column (516) and located on the hollow tube (515); a chamfer is provided on one end of the locking column (516) away from the control plate (517); and a chamfer is also provided on one end of the rotating connecting plate (512) provided with the connecting hole (513); A connecting column (5121) is installed at the bottom of the rotating connecting plate (512), and the connecting column (5121) is movably connected to the linkage assembly (52).

5. The combined pile pulling machine according to claim 2 or 4, characterized in that: The linkage assembly (52) comprises a guide post (520) fixedly mounted on the frame (1), a damping linkage structure (521) mounted on the guide post (520) and penetrating a side wall of the frame (1), and a linkage receiving assembly (522) mounted on another parallel side wall of the frame (1), wherein the linkage receiving assembly (522) is connected to the controller (6); The lead screw lifting assembly (3) and the connecting column (5121) are both connected to the damping linkage structure (521); The screw lifting assembly (3) in one of the combined pile pulling machines drives the damping linkage structure (521) to move, and issues instructions to the linkage receiving assembly (522) in another adjacent combined pile pulling machine. The linkage receiving assembly (522) sends a signal to the controller (6), and the controller (6) controls the corresponding motor (21) to work.

6. The combined pile pulling machine according to claim 5, characterized in that: The damping linkage structure (521) comprises a damping slide bar (5210) movably mounted on the guide column (520), a first damping slider (5211) and a second damping slider (5212) slidably mounted on the damping slide bar (5210), a linkage control plate (5213) movably mounted on the second damping slider (5212) and penetrating the frame (1), and two protrusions (5214) respectively mounted on the top and bottom of the linkage control plate (5213); The length of the damping sliding rod (5210) is smaller than the length of the guide column (520); The first damping slider (5211) is located on top of the second damping slider (5212), and one end of the first damping slider (5211) is connected to the lead screw lifting assembly (3); The first damping slider (5211) can drive the damping slider (5210) and the second damping slider (5212) to rise through the friction force between the first damping slider (5211) and the damping slider (5210); The second damping sliding block (5212) stays at any position on the damping sliding bar (5210) through the friction between the second damping sliding block (5212) and the damping sliding bar (5210); The linkage control plate (5213) is movably connected to the connecting column (5121), and the rotation axis of the linkage control plate (5213) and the second damping slider (5212) is colinear with the rotation axis of the connecting ear (510) and the rotating connecting plate (512); The linkage receiving assembly (522) comprises a linkage receiving block (5221) mounted on the side wall of the frame (1), a groove (5222) arranged on the linkage receiving block (5221) corresponding to the linkage control board (5213), two placement grooves (5223) respectively arranged at the top and bottom of the groove (5222), and a control switch (5224) installed in the placement groove (5223), wherein the control switch (5224) is connected to the controller (6); The contact surface of the control switch (5224) is flush with the groove wall of the groove (5222); The thickness of the linkage control board (5213) is less than the groove width of the groove (5222), and the sum of the thickness of the linkage control board (5213) and the thickness of the two bumps (5214) is equal to the groove height of the groove (5222). When the motor (21) in the power source assembly (2) drives the lead screw lifting assembly (3) to work, the lead screw lifting assembly (3) will drive the first damping slider (5211) connected thereto to move, so that the linkage control board (5213) moves.

7. The combined pile pulling machine according to claim 6, characterized in that: The frame (1) includes a bottom plate (11), a mounting block (12) provided on the bottom plate (11), a support column (13) mounted on the mounting block (12), and a first movable connection structure (14) and a second movable connection structure (15) respectively mounted on the bottom and top of the support column (13). A through groove (130) corresponding to the second damping slider (5212) is provided on the support column (13), and the height of the through groove (130) is greater than the thickness of the second damping slider (5212). The lead screw lifting assembly (3) is movably mounted on the first movable connection structure (14) and the second movable connection structure (15). Both ends of the guide post (520) are connected to the first movable connection structure (14) and the second movable connection structure (15).

8. The combined pile pulling machine according to claim 7, characterized in that: The mounting block (12) is arranged in a U shape, a through groove (131) corresponding to the lead screw lifting assembly (3) is provided on the support column (13), and a movable groove (132) communicating with the through groove (131) is further provided on the support column (13). The first movable connection structure (14) includes a first mounting seat (141) located in the through groove (131), a first counterbore (142) provided in the first mounting seat (141), and a first bearing (143) mounted in the first counterbore (142) and connected to the lead screw lifting assembly (3). The second movable connection structure (15) includes a second mounting seat (151) mounted on the top of the support column (13), a connecting block (152) integrally formed with the second mounting seat (151) and located in the through groove (131), a second counterbore (153) provided on the second mounting seat (151) and the connecting block (152), and a second bearing (154) mounted in the second counterbore (153) and connected to the lead screw lifting assembly (3). The power source assembly (2) is mounted on the second mounting seat (151).

9. The combined pile pulling machine according to claim 8, characterized in that: The lead screw lifting assembly (3) includes a lead screw (31) whose two ends are respectively movably connected to the first bearing (143) and the second bearing (154), a lead screw nut (32) mounted on the lead screw (31), and a lifting mounting block (33) provided on the lead screw nut (32), and the lifting mounting block (33) is located in the movable groove (132). Mounting grooves (155) are provided on both the first mounting seat (141) and the second mounting seat (151), and an elastic retaining ring (156) is mounted in the mounting grooves (155). The lifting mounting block (33) is connected to the first damping slider (5211). The lifting and lowering mounting block (33) is provided with a fixing hole (34) and a waist-shaped hole (35); the clamping assembly (4) is fixedly mounted on the lifting and lowering mounting block (33) via the fixing hole (34) and the waist-shaped hole (35); or the clamping assembly (4) is movably mounted on the lifting and lowering mounting block (33) via the waist-shaped hole (35).

10. The combined pile pulling machine according to claim 9, characterized in that: The power source assembly (2) further comprises a mounting plate (22) mounted on the second mounting seat (151), the motor (21) being mounted on the mounting plate (22), and the motor (21) being connected to the lead screw lifting assembly (3) via a coupling; A handle (133) is mounted on the outer wall of the support column (13); The clamping assembly (4) fixedly mounted via the fixing hole (34) and the waist-shaped hole (35) comprises a clamping connection plate (41), two clamping mounting plates (42) arranged on one side of the clamping connection plate (41), a clamping mounting groove (43) formed between the two clamping mounting plates (42), and a clamping member (44) mounted on the other side of the clamping connection plate (41), the clamping member (44) being insertable into the pile body, and then the clamping member (44) being raised to pull the pile body out of the ground, the clamping mounting groove (43) being adapted to the lifting mounting block (33); The clamping member (44) is composed of a pile extraction column; Alternatively, the clamping member (44) comprises a pile pulling block (441) mounted on the clamping connecting plate (41), and a spacing groove (442) arranged at a middle position of the pile pulling block (441); The pile pulling block (441) is provided with an insertion hole (443) connected to the spacing groove (442), a support screw (444) movably mounted in the insertion hole (443), and a locking nut (445) mounted on the support screw (444); The support screw (444) is provided with a hook (446); The clamping assembly (4) movably mounted through the waist-shaped hole (35) comprises a clamping block (401), a second clamping installation groove (402) arranged on the clamping block (401), and a clamping groove (403) arranged on the clamping block (401) for clamping the pile body, wherein the groove direction of the clamping groove (403) is perpendicular to the groove direction of the second clamping installation groove (402); An anti-slip strip (404) is installed in the clamping groove (403).

Images