Pile driver

Abstract

The invention relates to the technical field of engineering machinery, in particular to a pile driver. The pile driver comprises a pile driver body, a pile driving assembly, a driving assembly and a sand pumping assembly, and the pile driving assembly is arranged on the pile driver body and used for driving a hollow precast pile into the ground. The driving assembly comprises a sliding piece and a first driving piece, and the sliding piece is arranged on the pile driver body in a sliding mode. The sand pumping assembly comprises a sand pumping pump and a sand pumping pipeline, the sand pumping pump is arranged on the pile driver body, the first end of the sand pumping pipeline bypasses the sliding piece to communicate with the sand pumping pump, and the second end of the sand pumping pipeline extends into the hollow precast pile through the pile driving assembly. And the first driving part drives the sliding part to move relative to the pile driver body so as to adjust the height of the second end of the sand pumping pipeline, so that the sand pump pumps sandy soil in the hollow precast pile through the sand pumping pipeline, the pile driving resistance is reduced, the hollow precast pile is driven to the preset depth, and the pile driving reliability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of engineering machinery, and in particular to a pile driver. Background Art

[0002] Desert areas are ideal locations for photovoltaic power generation because of their long hours of sunshine and the absence of any obstructions. When setting up a photovoltaic power generation system in a desert area, it is necessary to drive hollow prefabricated piles into the sand and install photovoltaic panels on the hollow prefabricated piles for power generation. Hollow prefabricated piles are generally driven by a pile driver.

[0003] In the prior art, a pile hammer is provided on a pile driver. Before pile driving, water is first injected into the sand, and a hole is drilled at the water injection location using a drilling device to form the hole. Then, the hollow prefabricated pile is driven into the hole by the pile hammer.

[0004] However, after drilling, the sand may be too dense to allow the pile hammer to drive the hollow precast pile to a specified depth, and the hollow precast pile needs to be taken out and re-drilled, resulting in poor reliability of piling. Summary of the invention

[0005] The present application provides a pile driver, which can reduce the resistance of pile driving, so as to drive a hollow prefabricated pile to a preset depth, thereby improving the reliability of pile driving.

[0006] The pile driver provided in the present application includes: a pile driver body, which is used for contacting the ground.

[0007] The piling assembly is arranged on the pile driver body and is used for driving the hollow prefabricated piles into the ground.

[0008] The driving component comprises: a sliding member slidably arranged on the pile driver body; and a first driving member connected to the sliding member.

[0009] The sand pumping assembly comprises: a sand pump arranged on the pile driver body; a sand pumping pipeline, the first end of which bypasses the sliding member and is connected to the sand pump, and the second end of which extends into the hollow prefabricated pile through the pile driving assembly.

[0010] The first driving member drives the sliding member to move relative to the pile driver body to adjust the height of the second end of the sand pumping pipeline, so that the sand pump extracts sand in the hollow prefabricated pile through the sand pumping pipeline, so that the pile driving assembly drives the hollow prefabricated pile to a preset depth.

[0011] In a possible implementation, the pile driver provided in the present application, the sand pumping assembly further includes: a first detection member, which is arranged at the outlet of the sand pumping pump and is used to detect the concentration of the sand at the outlet.

[0012] When the concentration of the sand at the outlet is less than a preset concentration, the first driving member drives the sliding member to move relative to the pile driver body.

[0013] In a possible implementation, in the pile driver provided by the present application, the first detection component is a particle sensor.

[0014] In a possible implementation, the pile driver provided in the present application, the driving assembly further includes: a slide rail connected to the pile driver body, and the sliding member is slidably connected to the slide rail.

[0015] In a possible implementation, the pile driver provided in the present application, the driving assembly further includes: an isolating member, which is disposed on the sand pumping pipeline, and the sand pumping pipeline is in contact with the sliding member through the isolating member.

[0016] In a possible implementation, the pile driver provided by the present application has a pile driving assembly including a pile driving member and a connecting seat, and the connecting seat is rotatably connected to the pile driver body.

[0017] The piling member is slidably connected to the connecting seat, and the piling member vibrates relative to the connecting seat in a vertical direction to drive the hollow prefabricated pile into the ground.

[0018] In a possible implementation, in the pile driver provided by the present application, a first gear and a second gear are provided in the pile driving member, the first gear is rotatably connected to the pile driving member, and the second gear is meshed with the first gear.

[0019] The first gear and the second gear are both provided with eccentric blocks, and the eccentric blocks are spaced apart from the rotation axes of the first gear and the second gear respectively, so that the first gear and the second gear drive the piling member to vibrate relative to the connecting seat in the vertical direction.

[0020] In a possible implementation, the pile driver provided by the present application, the pile driving assembly also includes a sleeve, the sleeve is connected to the pile driving member, and the sleeve is used to insert a partially hollow prefabricated pile.

[0021] In a possible implementation, the pile driver provided by the present application has a pile driver body including a base, a first arm and a second arm, and the base is used to contact the ground.

[0022] The second arm is rotatably connected to the base through the first arm, the piling assembly is arranged on the second arm, and the first arm and the second arm rotate relative to the base to adjust the position of the piling assembly.

[0023] In a possible implementation, the pile driver provided in the present application further includes two second detection members, each of which is provided with a second detection member, and the second detection member is used to detect the angles between the first arm and the second arm and the horizontal direction, respectively.

[0024] The pile driver provided by the present application is provided with a pile driver body, a pile driving assembly, a driving assembly and a sand pumping assembly, wherein the pile driver body is used to contact the ground. The pile driving assembly is arranged on the pile driver body, and the pile driving assembly is used to drive the hollow prefabricated pile into the ground. The driving assembly includes a sliding member and a first driving member connected to the sliding member, and the sliding member is slidably arranged on the pile driver body. The sand pumping assembly includes a sand pumping pump and a sand pumping pipeline, wherein the sand pumping pump is arranged on the pile driver body, the first end of the sand pumping pipeline bypasses the sliding member and is connected to the sand pumping pump, and the second end of the sand pumping pipeline extends into the hollow prefabricated pile through the pile driving assembly.

[0025] When the piling assembly is unable to continue to drive the hollow prefabricated pile into the ground, the first driving member drives the sliding member to move relative to the pile driver body to adjust the height of the second end of the sand pumping pipeline, so that the sand pump can extract sand in the hollow prefabricated pile through the sand pumping pipeline to reduce the density and friction of the sand in the hollow prefabricated pile, thereby reducing the resistance to piling, so as to drive the hollow prefabricated pile to a preset depth, thereby improving the reliability of piling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 A schematic diagram of the structure of a pile driver provided in an embodiment of the present application;

[0028] Figure 2 for Figure 1 A schematic diagram of the structure of part A in the middle;

[0029] Figure 3 for Figure 2 A schematic diagram of the structure of the piling assembly;

[0030] Figure 4 for Figure 3 Schematic diagram of the structure of the piling component;

[0031] Figure 5 for Figure 1 Schematic diagram of the structure where hollow precast piles are driven into the ground.

[0032] Description of reference numerals:

[0033] 10-Hollow precast piles;

[0034] 100- pile driver body;

[0035] 110-base; 120-first arm; 130-second arm; 140-arm;

[0036] 200-pile driving assembly;

[0037] 210-pile driving member; 211-first gear; 212-second gear; 213-eccentric block; 214-motor;

[0038] 220-connection seat;

[0039] 230-sleeve; 231-clamping member;

[0040] 300- driving assembly;

[0041] 310-sliding part;

[0042] 320-first driving member;

[0043] 330-slide rail;

[0044] 340-Isolator;

[0045] 400-Sand pumping assembly;

[0046] 410-sand pump; 411-export;

[0047] 420-sand pumping pipeline; 421-first end; 422-second end;

[0048] 430-first detection part;

[0049] 500-Second test piece.

[0050] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0051] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0052] Secondly, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] Then, it should be noted that, in the description of the present application, the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0054] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0055] As shown in the background technology, in the prior art, a pile hammer is provided on a pile driver. Before piling, water is first injected into the sand, and a drilling device is used to drill a hole at the water injection point to form the hole. Then, the hollow prefabricated pile is driven into the hole by the pile hammer.

[0056] However, after drilling, the sand may be too dense to allow the pile hammer to drive the hollow precast pile to a specified depth, and the hollow precast pile needs to be taken out and re-drilled, resulting in poor reliability of piling.

[0057] Based on this, the pile driver provided by the present application is provided with a pile driver body, a pile driving assembly, a driving assembly and a sand pumping assembly, wherein the pile driver body is used to contact the ground. The pile driving assembly is provided on the pile driver body, and the pile driving assembly is used to drive the hollow prefabricated pile into the ground. The driving assembly includes a sliding member and a first driving member connected to the sliding member, and the sliding member is slidably provided on the pile driver body. The sand pumping assembly includes a sand pumping pump and a sand pumping pipeline, wherein the sand pumping pump is provided on the pile driver body, the first end of the sand pumping pipeline bypasses the sliding member and is connected to the sand pumping pump, and the second end of the sand pumping pipeline extends into the hollow prefabricated pile through the pile driving assembly.

[0058] When the piling assembly is unable to continue to drive the hollow prefabricated pile into the ground, the first driving member drives the sliding member to move relative to the pile driver body to adjust the height of the second end of the sand pumping pipeline, so that the sand pump can extract sand in the hollow prefabricated pile through the sand pumping pipeline to reduce the density and friction of the sand in the hollow prefabricated pile, thereby reducing the resistance to piling, so as to drive the hollow prefabricated pile to a preset depth, thereby improving the reliability of piling.

[0059] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0060] Reference Figure 1 and Figure 2 As shown, the pile driver provided by the present application includes: a pile driver body 100 for contacting the ground.

[0061] The piling assembly 200 is disposed on the pile driver body 100 and is used to drive the hollow prefabricated pile 10 into the ground.

[0062] The driving assembly 300 includes: a sliding member 310 slidably disposed on the pile driver body 100 ; and a first driving member 320 connected to the sliding member 310 .

[0063] The sand pumping assembly 400 includes: a sand pump 410 disposed on the pile driver body 100; a sand pumping pipeline 420, wherein a first end 421 of the sand pumping pipeline 420 bypasses the sliding member 310 and communicates with the sand pump 410, and a second end 422 of the sand pumping pipeline 420 extends into the hollow prefabricated pile 10 through the pile driving assembly 200.

[0064] The first driving member 320 drives the sliding member 310 to move relative to the pile driver body 100 to adjust the height of the second end 422 of the sand pumping pipeline 420, so that the sand pump 410 extracts sand in the hollow precast pile 10 through the sand pumping pipeline 420, so that the pile driving assembly 200 drives the hollow precast pile 10 to a preset depth.

[0065] It is understandable that the pile driver body 100 is the basic structure of the pile driver, which provides support for the pile driver to ensure that the pile driver remains balanced and stable during operation. The pile driver body 100 also provides a mounting platform for the pile driver assembly 200, the drive assembly 300 and the sand pumping assembly 400, so that the pile driver assembly 200, the drive assembly 300 and the sand pumping assembly 400 can be stably fixed on the pile driver body 100 so that they can work together during operation. The pile driver body 100 usually also has the functions of moving and positioning, so that the pile driver can be flexibly moved at the construction site and accurately positioned to the position where pile driving is required. It should be noted that the pile driver body 100 can be modified from an existing excavator. For example, a support structure can be installed on the chassis of the excavator to enhance its stability and carrying capacity.

[0066] The main function of the pile driving assembly 200 is to drive the hollow precast pile 10 into the ground to ensure that the hollow precast pile 10 can be stably implanted in the foundation to meet the requirements of the engineering design. The pile driving assembly 200 effectively transmits the force to the hollow precast pile 10 by applying a vertical impact force or a vibration force, so that the pile overcomes the resistance of the ground and enters the ground.

[0067] Specifically, the sand pump 410 extracts sand from the hollow prefabricated pile 10 through the sand pumping pipeline 420, which can reduce the density and friction of the sand in the hollow prefabricated pile 10, thereby reducing the resistance of piling, so that the piling assembly 200 can drive the prefabricated pile to a preset depth, thereby improving the reliability of piling. In addition, since the difficulty of piling caused by soil density is reduced, the piling speed is accelerated, thereby improving the construction efficiency.

[0068] It should be noted that, in specific implementation, a suitable sand pump 410, such as a centrifugal pump or a screw pump, may be selected according to specific conditions of the construction site, and the selection of the pump should take into account the particle size of the sand and the extraction efficiency.

[0069] It should also be noted that the sand pumping pipeline 420 should be made of wear-resistant and corrosion-resistant materials to adapt to the wear of sand and the corrosion of the construction environment. The length of the sand pumping pipeline 420 should be long enough to ensure that it can extend into the bottom of the hollow prefabricated pile 10.

[0070] The first driving member 320 is connected to the sliding member 310. By driving the sliding member 310 to move, the height of the second end 422 of the sand pumping pipeline 420 can be accurately controlled to flexibly adjust the depth of sand pumping during the piling process, thereby optimizing the sand pumping effect, ensuring that the sand in the hollow prefabricated pile 10 can be effectively pumped out, and reducing the piling resistance.

[0071] The sliding member 310 is slidably disposed on the pile driver body 100. In a specific implementation, a guide rail or a slide groove may be disposed on the pile driver body 100. The sliding member 310 may be a pulley, and the pulley is slidably connected to the guide rail or the slide groove to ensure smooth sliding of the pulley. It should be noted that the sliding member 310 should be made of wear-resistant material to ensure that it maintains stable performance during frequent movement.

[0072] For example, the first driving member 320 can be a hydraulic cylinder, an electric motor or a pneumatic device, etc., and other driving devices can also be selected according to the overall design and use environment of the pile driver, and the embodiments of the present application do not impose too many restrictions on this. It should be noted that a control system can also be equipped to automatically control the operation of the first driving member 320 through the control system to achieve precise control of the position of the sliding member 310.

[0073] It can be understood that compared with the poor reliability of pile driving in the prior art, the pile driver in this embodiment is provided with a pile driver body 100, a pile driving assembly 200, a driving assembly 300 and a sand pumping assembly 400, wherein the pile driver body 100 is used to contact the ground. The pile driving assembly 200 is arranged on the pile driver body 100, and the pile driving assembly 200 is used to drive the hollow prefabricated pile 10 into the ground. The driving assembly 300 includes a sliding member 310 and a first driving member 320 connected to the sliding member 310, and the sliding member 310 is slidably arranged on the pile driver body 100. The sand pumping assembly 400 includes a sand pumping pump 410 and a sand pumping pipeline 420, wherein the sand pumping pump 410 is arranged on the pile driver body 100, and the first end 421 of the sand pumping pipeline 420 bypasses the sliding member 310 and communicates with the sand pumping pump 410, and the second end 422 of the sand pumping pipeline 420 extends into the hollow prefabricated pile 10 through the pile driver assembly 200.

[0074] When the piling assembly 200 is unable to continue to drive the hollow prefabricated pile 10 into the ground, the first driving member 320 drives the sliding member 310 to move relative to the pile driver body 100 to adjust the height of the second end 422 of the sand pumping pipeline 420, so that the sand pump 410 extracts sand in the hollow prefabricated pile 10 through the sand pumping pipeline 420, so as to reduce the density and friction of the sand in the hollow prefabricated pile 10, thereby reducing the resistance to piling, so as to drive the hollow prefabricated pile 10 to a preset depth, thereby improving the reliability of piling.

[0075] In some embodiments, reference Figure 2 As shown, the sand pumping assembly 400 further includes: a first detection member 430 , which is disposed at the outlet 411 of the sand pump 410 and is used to detect the concentration of sand at the outlet 411 .

[0076] When the concentration of the sand in the outlet 411 is less than a preset concentration, the first driving member 320 drives the sliding member 310 to move relative to the pile driver body 100 .

[0077] The first detection member 430 is disposed at the outlet 411 of the sand pump 410, so that the first detection member 430 can accurately detect the concentration of sand pumped out by the sand pump 410. By detecting the concentration of sand, it can be determined whether the sand pumping process is effective. If the concentration of sand is detected to be lower than the preset concentration, it means that the amount of sand pumped is insufficient, and the sand pumping pipeline 420 may not be fully extended into the sand area.

[0078] In a specific implementation, a controller may also be provided, and the first detection member 430 and the first driving member 320 are both electrically connected to the controller. The first detection member 430 transmits the detected concentration data to the controller, and the controller compares the real-time detection data with the preset concentration value. Once the detected concentration is lower than the preset concentration value, the controller controls the first driving member 320 to drive the sliding member 310 to move, so as to ensure that the second end 422 of the sand pumping pipeline 420 is always in a better position, so as to improve the sand pumping efficiency and reduce the resistance in the pile, so as to make it easier for the pile driving assembly 200 to drive the hollow prefabricated pile 10 into the preset depth.

[0079] In some embodiments, reference Figure 2 As shown, the first detection component 430 is a particle sensor.

[0080] It should be noted that a particle sensor is a device used to detect the concentration of particles in the air or liquid, and can measure the number, size and mass concentration of particles. The particle sensor emits a light beam, which is scattered when it encounters particles. The intensity of the scattered light is detected to infer the concentration of the particles.

[0081] The particle sensor can accurately detect the particle concentration in the sand to accurately determine the current sand pumping situation, thereby timely adjusting the height of the second end 422 of the sand pumping pipeline 420 to improve the sand pumping efficiency.

[0082] In some embodiments, reference Figure 2 As shown, the driving assembly 300 further includes: a slide rail 330 connected to the pile driver body 100 , and the sliding member 310 is slidably connected to the slide rail 330 .

[0083] The slide rail 330 provides a stable and controlled moving path for the slide member 310 to ensure that the slide member 310 remains stable during movement without deviation or shaking, and the slide member 310 can accurately move along a predetermined path relative to the slide rail 330, thereby achieving precise control of the height of the second end 422 of the sand extraction pipeline 420, further improving the sand extraction efficiency.

[0084] In some embodiments, reference Figure 2 As shown, the driving assembly 300 further includes: an isolating member 340 , which is disposed on the sand pumping pipeline 420 , and the sand pumping pipeline 420 is in contact with the sliding member 310 through the isolating member 340 .

[0085] It should be noted that by providing the isolating member 340, the friction between the sliding member 310 and the sand pumping pipeline 420 can be reduced. The isolating member 340 can also play a role of shock absorption and buffering, and can reduce the direct vibration and impact between the sliding member 310 and the sand pumping pipeline 420, so as to protect the sand pumping pipeline 420.

[0086] Exemplarily, the isolation member 340 may be a drag chain which is wound around the sand extraction pipeline 420 and contacts the sliding member 310 to reduce friction between the sand extraction pipeline 420 and the sliding member 310 .

[0087] In some embodiments, reference Figure 1 and Figure 3 As shown, the piling assembly 200 includes a piling member 210 and a connecting seat 220 , and the connecting seat 220 is rotatably connected to the pile driver body 100 .

[0088] The piling member 210 is slidably connected to the connecting seat 220 , and the piling member 210 vibrates relative to the connecting seat 220 in a vertical direction to drive the hollow prefabricated pile 10 into the ground.

[0089] Specifically, the piling member 210 is slidably connected to the connecting seat 220 so that the piling member 210 can freely move and vibrate in the vertical direction. The piling member 210 vibrates relative to the connecting seat 220 in the vertical direction to apply a force to the hollow prefabricated pile 10 so that the hollow prefabricated pile 10 overcomes the resistance of the soil and is driven into the ground. It should be noted that the piling member 210 needs to have sufficient durability and strength to withstand high-frequency vibration and impact force.

[0090] The connection base 220 provides support and stability for the pile driver 210. The connection base 220 is rotatably connected to the pile driver body 100 so that the connection base 220 and the pile driver body 100 can adjust their angles within a certain range to ensure that the pile driver 210 always vibrates in the vertical direction.

[0091] It should also be noted that the connection seat 220 may also have a shock absorbing and buffering function to reduce the impact of the vibration of the pile driving member 210 on the pile driver body 100 and improve the reliability of the pile driver.

[0092] In some embodiments, reference Figure 3 and Figure 4 As shown, a first gear 211 and a second gear 212 are disposed in the piling member 210 . The first gear 211 is rotatably connected to the piling member 210 , and the second gear 212 is meshed with the first gear 211 .

[0093] The first gear 211 and the second gear 212 are both provided with an eccentric block 213 , which is spaced apart from the rotation axis of the first gear 211 and the second gear 212 , so that the first gear 211 and the second gear 212 drive the piling member 210 to vibrate relative to the connecting seat 220 in the vertical direction.

[0094] It can be understood that the setting of the eccentric block 213 enables the first gear 211 and the second gear 212 to generate unbalanced centrifugal force when rotating, and the centrifugal force can drive the piling member 210 to generate periodic vibrations in the vertical direction, thereby effectively driving the precast piles into the ground.

[0095] It should be noted that by adjusting the rotation speed of the first gear 211 and the second gear 212, or the mass and position of the eccentric block 213, the magnitude and frequency of the vibration force can be flexibly controlled to improve the pile driving efficiency.

[0096] It should also be noted that, in a specific implementation, a motor 214 may be further provided in the piling member 210 , and a rotating shaft of the motor 214 is connected to the first gear 211 , so that the first gear 211 is driven to rotate by the motor 214 .

[0097] In some embodiments, reference Figure 2 and Figure 3 As shown, the piling assembly 200 further includes a sleeve 230 , which is connected to the piling member 210 , and is used to insert a part of the hollow prefabricated pile 10 .

[0098] Specifically, the sleeve 230 provides a fixed channel for inserting a portion of the hollow precast pile 10. The sleeve 230 can provide additional support for the hollow precast pile 10 to ensure the stability of the hollow precast pile 10, so that the hollow precast pile 10 maintains the correct position and direction during the piling process and prevents the hollow precast pile 10 from being offset or tilted.

[0099] It should be noted that a clamping member 231 may be further provided on the inner wall of the sleeve 230, and the clamping member 231 is used to clamp the hollow prefabricated pile 10 to prevent the hollow prefabricated pile 10 from being separated from the sleeve 230. In a specific implementation, the clamping member 231 may be a hydraulic cylinder, one end of which is connected to the inner wall of the sleeve 230, and the other end of which is in contact with the hollow prefabricated pile 10, so as to fix the hollow prefabricated pile 10 together with the sleeve 230.

[0100] In some embodiments, reference Figure 1 As shown, the pile driver body 100 includes a base 110 , a first arm 120 and a second arm 130 , wherein the base 110 is used to contact the ground.

[0101] The second arm 130 is rotatably connected to the base 110 through the first arm 120 . The piling assembly 200 is disposed on the second arm 130 . The first arm 120 and the second arm 130 rotate relative to the base 110 to adjust the position of the piling assembly 200 .

[0102] It should be noted that, in a specific implementation, the pile driver body 100 may further include a boom 140, and the two ends of the boom 140 are respectively hinged to the first arm 120 and the second arm 130. Through the rotational connection of the first arm 120, the boom 140 and the second arm 130, the pile driver can flexibly adjust the position of the pile driving assembly 200 in multiple directions to ensure that the pile driving assembly 200 is accurately positioned under different terrains and construction conditions to meet specific engineering requirements. The first arm 120, the boom 140 and the second arm 130 rotate relative to each other, and the position and angle of the pile driving assembly 200 can also be accurately controlled, thereby improving the accuracy of pile driving to ensure the verticality and accuracy of pile driving.

[0103] It should also be noted that the first arm 120, the boom 140 and the second arm 130 can also expand the working range of the pile driver so that the pile driver can cover a larger construction area, reducing the need for frequent movement of the pile driver at the construction site and improving construction efficiency.

[0104] In some embodiments, the pile driver further includes two second detection members 500 , and the first arm 120 and the second arm 130 are both provided with the second detection members 500 , and the second detection members 500 are used to detect the angles between the first arm 120 and the second arm 130 and the horizontal direction, respectively.

[0105] It should be noted that the second detection member 500 can be an angle sensor, and the first arm 120, the boom 140 and the second arm 130 can be provided with angle sensors to provide real-time angle data, so that the pile driver can accurately control the angles of the first arm 120, the boom 140 and the second arm 130 to accurately locate the position of the piling assembly 200 to ensure that the hollow precast pile 10 can be vertically driven into the ground.

[0106] In a specific implementation, if the length of the first arm 120 is L1, the length of the boom 140 is L2, the length of the second arm 130 is L3, the distance between the base 110 and the ground is c, the angle between the first arm 120 and the horizontal direction is α, the angle between the boom 140 and the horizontal direction is β, the angle between the second arm 130 and the horizontal direction is γ, the distance between the hollow prefabricated pile 10 and the ground is H, the length of the hollow prefabricated pile 10 is H1, the length of the hollow prefabricated pile 10 extending into the sleeve 230 is H2, and the distance between the second arm 130 (the end away from the boom 140) and the ground is H4, it can be concluded that:

[0107] H4=L1*sinα+L2*sinβ+L3*sinγ+c

[0108] H=H4-H3-H1+H2

[0109] Therefore, by changing the angle α between the first arm 120 and the horizontal direction, the angle β between the boom 140 and the horizontal direction, and the angle γ between the second arm 130 and the horizontal direction, the displacement of the hollow prefabricated pile 10 in the vertical direction can be controlled.

[0110] When the pile driving assembly 200 is unable to continue driving the hollow prefabricated pile 10 into the ground, Figure 2 As shown, the controller controls the first driving member 320 to drive the sliding member 310 to move relative to the second arm 130 to adjust the height of the second end 422 of the sand pumping pipeline 420, that is, the lowering amount of the second end 422 of the sand pumping pipeline 420. Figure 5 As shown, the lowering amount S of the second end 422 of the sand pumping pipeline 420 = the distance S0 between the second end 422 of the sand pumping pipeline 420 and the end of the hollow prefabricated pile 10 in the initial state - the height S1 of the sand in the hollow prefabricated pile 10 - the distance S2 from the second end 422 of the sand pumping pipeline 420 to the sand in the final state. It should be noted that S0, S1, and S2 are all set values. When S2 is within a certain range, the sand will be pumped out. S1 and S2 can be preset according to experience / test values. For example, S2 is 0-20 mm, the burial depth of the hollow prefabricated pile 10 is 1 m, and S1 can be 0.4 m; the burial depth of the hollow prefabricated pile 10 is 2 m, and S1 can be 0.6 m; the burial depth of the hollow prefabricated pile 10 is 3 m, and S1 can be 0.8 m.

[0111] The sand pump 410 starts to pump sand. When the concentration of sand at the outlet 411 of the first detection member 430 is less than the preset concentration, the first driving member 320 drives the sliding member 310 to move relative to the pile driver body 100 to adjust the height of the second end 422 of the sand pumping pipeline 420 until sand is sucked out. The controller can accurately control the distance that the first driving member 320 drives the sliding member 310 to slide based on the sand concentration detected by the first detection member 430 and the vertical displacement of the hollow prefabricated pile 10, so that the distance S2 from the second end 422 of the sand pumping pipeline 420 to the sand is always maintained within the set value range, and at the same time, the sand concentration detected by the first detection member 430 is fed back to the controller in real time to optimize the vertical displacement of the hollow prefabricated pile 10. When the second end 422 of the sand pumping pipe 420 reaches the specified position, continue piling. When the piling assembly 200 is unable to continue to drive the hollow prefabricated pile 10 into the ground again, repeat the above actions until the piling assembly 200 drives the hollow prefabricated pile 10 to a preset depth. The piling is completed, the sand pumping pipe 420 is retracted to the initial position, and the next hollow prefabricated pile 10 is driven.

[0112] It should be noted that the second end 422 of the sand pumping pipeline 420 may be connected to a metal sand pumping port, which is flat so that sand can be pumped out more easily. A steel wire may also be provided at the second end 422 of the sand pumping pipeline 420 to support the sand pumping pipeline 420 so that the sand pumping pipeline 420 has a certain anti-deformation ability to prevent the sand pumping pipeline 420 from being sucked flat during the sand pumping process.

[0113] It can be understood by those skilled in the art that the pile driver provided by the present application is provided with a pile driver body 100, a pile driving assembly 200, a driving assembly 300 and a sand pumping assembly 400, wherein the pile driver body 100 is used to contact the ground. The pile driving assembly 200 is arranged on the pile driver body 100, and the pile driving assembly 200 is used to drive the hollow prefabricated pile 10 into the ground. The driving assembly 300 includes a sliding member 310 and a first driving member 320 connected to the sliding member 310, and the sliding member 310 is slidably arranged on the pile driver body 100. The sand pumping assembly 400 includes a sand pumping pump 410 and a sand pumping pipeline 420, wherein the sand pumping pump 410 is arranged on the pile driver body 100, and the first end 421 of the sand pumping pipeline 420 bypasses the sliding member 310 and is connected to the sand pumping pump 410, and the second end 422 of the sand pumping pipeline 420 extends into the hollow prefabricated pile 10 through the pile driver assembly 200.

[0114] When the piling assembly 200 is unable to continue driving the hollow prefabricated pile 10 into the ground, the first driving member 320 drives the sliding member 310 to move relative to the pile driver body 100 to adjust the height of the second end 422 of the sand pumping pipeline 420, so that the sand pump 410 extracts sand in the hollow prefabricated pile 10 through the sand pumping pipeline 420, so as to reduce the density and friction of the sand in the hollow prefabricated pile 10, thereby reducing the resistance to piling, so as to drive the hollow prefabricated pile 10 to a preset depth, thereby improving the reliability of piling.

[0115] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0116] It should be understood that the various numerical numbers involved in the embodiments of the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application.

[0117] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. A pile driver, characterized in that: include: A pile driver body (100) for contacting the ground; A piling assembly (200) is arranged on the pile driver body (100), and the piling assembly (200) is used to drive the hollow prefabricated pile (10) into the ground; A drive assembly (300) comprising: A sliding member (310) is slidably disposed on the pile driver body (100); A first driving member (320) connected to the sliding member (310); The sand extraction assembly (400) comprises: A sand pump (410) is arranged on the pile driver body (100); A sand pumping pipeline (420), wherein a first end (421) of the sand pumping pipeline (420) bypasses the sliding member (310) and is connected to the sand pump (410), and a second end (422) of the sand pumping pipeline (420) extends into the hollow prefabricated pile (10) through the piling assembly (200); The first driving member (320) drives the sliding member (310) to move relative to the pile driver body (100) to adjust the height of the second end (422) of the sand extraction pipeline (420), so that the sand extraction pump (410) extracts sand and soil in the hollow prefabricated pile (10) through the sand extraction pipeline (420), so that the pile driving assembly (200) drives the hollow prefabricated pile (10) to a preset depth.

2. The pile driver according to claim 1, characterized in that: The sand pumping assembly (400) further comprises: A first detection element (430) is arranged at the outlet (411) of the sand pump (410) and is used to detect the concentration of sand at the outlet (411); When the concentration of sand in the outlet (411) is less than a preset concentration, the first driving member (320) drives the sliding member (310) to move relative to the pile driver body (100).

3. The pile driver according to claim 2, characterized in that: The first detection component (430) is a particle sensor.

4. The pile driver according to claim 1, characterized in that: The drive assembly (300) further comprises: The slide rail (330) is connected to the pile driver body (100), and the sliding member (310) is slidably connected to the slide rail (330).

5. The pile driver according to claim 4, characterized in that: The drive assembly (300) further comprises: The isolating member (340) is arranged on the sand pumping pipeline (420), and the sand pumping pipeline (420) is in contact with the sliding member (310) through the isolating member (340).

6. The pile driver according to any one of claims 1 to 5, characterized in that: The piling assembly (200) comprises a piling member (210) and a connecting seat (220), wherein the connecting seat (220) is rotatably connected to the piling machine body (100); The piling member (210) is slidably connected to the connecting seat (220), and the piling member (210) vibrates relative to the connecting seat (220) in a vertical direction to drive the hollow prefabricated pile (10) into the ground.

7. The pile driver according to claim 6, characterized in that: The piling member (210) is provided with a first gear (211) and a second gear (212), the first gear (211) is rotatably connected to the piling member (210), and the second gear (212) is meshed with the first gear (211); The first gear (211) and the second gear (212) are both provided with an eccentric block (213), and the eccentric block (213) is spaced apart from the rotation axis of the first gear (211) and the second gear (212), so that the first gear (211) and the second gear (212) drive the piling member (210) to vibrate in a vertical direction relative to the connecting seat (220).

8. The pile driver according to claim 6, characterized in that: The piling assembly (200) further comprises a sleeve (230), wherein the sleeve (230) is connected to the piling member (210), and the sleeve (230) is used to insert a portion of the hollow prefabricated pile (10).

9. The pile driver according to any one of claims 1 to 5, characterized in that: The pile driver body (100) comprises a base (110), a first arm (120) and a second arm (130), wherein the base (110) is used to contact the ground; The second arm (130) is rotatably connected to the base (110) via the first arm (120); the piling assembly (200) is arranged on the second arm (130); the first arm (120) and the second arm (130) rotate relative to the base (110) to adjust the position of the piling assembly (200).

10. The pile driver according to claim 9, characterized in that: The invention also comprises two second detection members (500), wherein the first arm (120) and the second arm (130) are both provided with the second detection members (500), and the second detection members (500) are used to detect the angles respectively between the first arm (120) and the second arm (130) and the horizontal direction.

Images